News

Softened water equipment is widely used in daily life, but sometimes its water will turn yellow, causing inconvenience to users. This situation may be caused by scale, iron oxide and other reasons caused by long-term operation of the equipment. However, there are steps we can take to address this problem. First, you can try to clean the softened water equipment. Users can choose professional cleaning agents, according to the requirements of the manual cleaning, the equipment inside the scale and dirt clean, so as to improve the quality of water. Secondly, a pre-filter can be added. Before the water enters the softened water equipment, adding a pre-filter can effectively block the impurities and dirt of large particles, reduce the burden of the equipment, and thus improve the quality of the effluent. In addition, the operating parameters of the softened water equipment can also be adjusted appropriately. According to the local water quality and use situation, adjust the brine concentration, recovery rate and other parameters of the equipment, can achieve better softening effect and effluent quality. Finally, the softened water equipment needs to be maintained regularly. Check the operating status of the equipment regularly, replace the filter element and resin in time, clean the inside of the equipment, and prevent the scale and dirt caused by long-term use from affecting the quality of the water. In short, the problem of yellow water of the softening water equipment is not without solution, through cleaning equipment, installing pre-filters, adjusting operating parameters and regular maintenance measures, we can effectively solve this problem and ensure the quality and safety of the water.

Hebei Chengda Water Treatment Technology Co., Ltd. (abbreviated: Chengda Water Treatment Technology) is a high -tech enterprise engaged in the research and development, production and sales of water treatment environmental protection products.   Its registered trademark brand: Winder® Win, Cenhon® Navigation, ArcLION® Aklin, Winder®-G, AOWY®. Its brand product: water treatment frp reinforced fiber housing shell, sea light high -pressure glass fiber steel membrane shell, ST/DTRO membrane shell, tubular membrane shell, glass fiber reinforcement filter, special membrane shell, quick -disassembly membrane shell, RO reverse osmosis membrane, RO reverse osmosis membrane film Components; Water Treatment of FRP composite tanks, glass fiber reinforcement (customized) tanks, mixed beds (ion exchange columns), PE salt tanks, waterfish, oxygen cone, glass fiber reservoir storage tank, filter sand tank, ion exchange resin, ion exchange resin , Filter material and other one -stop water treatment manufacturers.   Chengda Shui Treatment Technology takes "using technology to purify the world of water" as its corporate purpose. Our R & D team and Wuhan University of Science and Technology are united to use more advanced equipment and production processes to create international excellent products.   Products have passed EU CE certification, US NSF certification, international ISO9001 quality management system certification, international ISO14001 environmental management system certification, and domestic health license approval certification; Specialized new "SMEs, won the Certificate of Science and Technology Achievement of Hebei Province, Hebei Outstanding Brand, Hengshui Enterprise Technology Certification Center, and Hebei Innovation SMEs. The company has strong independent innovation capabilities, has its own R & D team, independently develops and improves production equipment to improve product quality and efficiency, and has become a leader in the water treatment environmental manufacturing industry.

The pre -processing of industrial reverse osmosis equipment is a vital link. The pre -processing is well done, and the reverse osmosis equipment can exert the maximum effect and ensure that the water quality is pure and safe. So why is pre -processing so important?   The pre -processing process can effectively improve the work efficiency of reverse osmosis equipment and the life of the equipment. Through pre -treatment, the suspended solids, organic substances, bacteria and viruses in water can be effectively removed to protect the reverse osmosis membrane from pollution and damage. This can not only improve the quality of water production, but also reduce energy consumption and maintenance costs. Imagine that if the impurities enter the reverse osmosis membrane, it will not only shorten its service life, but also affect water quality and cause a series of problems. At the same time, pre -processing can also adjust the pH value and temperature of water, creating the best conditions for the reverse osmosis process. In this way, reverse osmosis equipment can work more efficiently to ensure that the water quality of the output meets the standard.   In addition, pre -treatment can also reduce the number of cleaning and replacement frequency of reverse osmosis membranes, and can also reduce the failure rate during the operation of the reverse osmosis equipment, and improve the stability and reliability of the equipment. Appropriate pre -treatment measures can effectively reduce the pollution of reverse osmosis membranes, extend the service life of reverse osmosis equipment, reduce maintenance costs and stop time, thereby ensuring the stability of industrial production. This reduces operating costs. For enterprises and factories, this is the real economic benefits! Preparatory treatment can also help improve the water production rate of reverse osmosis equipment, effectively reduce wastewater discharge, and meet environmental protection requirements. Through reasonable pre -processing system design and operation management, it can maximize the use of existing resources, reduce energy consumption, reduce production costs, and improve the economic benefits of industrial production.

When the resin in the softener is saturated, regeneration needs to be performed to restore the resin exchange ability. The regeneration process of the resin is divided into smooth regeneration and reverse regeneration according to the flow of the recycled salt fluid. The recycled salt fluid flow is called smooth regeneration when the runtime flow is the same as running raw water. There are main steps such as anti -washing, regeneration, replacement, and positive washing in the regeneration process of the softener. (1) Anti -cleaning process After the resin fails, it is necessary to use anti -wash water to use the bottom -up washing. The anti -washing process can remove impurities such as suspension and crushing resin in the resin layer, which can destroy the resin plate. It is best to use the softened water that has been softened, and the effect of anti -washing with the original water of the system is poor. The anti-washing speed is about 10m/h, and the anti-washing time is 10-15min.     (2) Regeneration process After the anti -washing process is over, the regeneration process should be entered. The renewal process of resin follows the principles of material exchange. During the regeneration process, the concentration of the regenerative salt fluid should be kept at 5%-10%, and the flow rate of the recycled solution should be controlled at 6-8m/h. The regeneration effect is very sensitive to the hardness of the regenerative solution. You should try to use the softened water for the recycled solution. In particular, the high -hardness raw water should be avoided.     (3) Water body replacement Water replacement is the continuation step of the regeneration process. After the regeneration process is over and after the salt is stopped, there is still salt fluid that has not participated in the upper and resin in the exchange. In order to make full use of this part of the salt solution, and the regenerative salt solution and regeneration products in the softener should continue The flow and flow velocity inject water into the resin bed, so that the regenerative solution in the exchange is discharged by the softener while further regenerative resin. Generally, the amount of water replacement is 0.5-1 double resin volume. (4) Salt box replenishment After the regeneration salt water is sucked, the amount of water required for regeneration should be supplemented in the salt box. At 25 ° C, when 1L of water is dissolved in 360g of salt, it reaches the degree of saturation (concentration is 26.4%). In order to achieve saturation in the salt liquid in the salt box, it should be ensured that the dissolution time is greater than 6h, and there is sufficient solid salt in the salt box.   (5) Positive washing process   After the water body replacement is over or before the spare switch begins to be put into operation, in order to discharge the regenerative salt solution and regeneration products in the soft agent, use clean water to flow according to the original water transportation flow, until the hardness of the water out of the water is washing the resin is washing. Generally, the volume of resin volume with 3-6 times the amount of water washing.

HeBei ChengDa Water Technology Co., Ltd. (Abbreviation: Chengda Water Technology), was found in 1976 and is a professional company specializing in the production and export of FRP pressure vessels. Factory covers an area of 20 acres and has 200 employees, have a professional team of engineers. We are a high-tech enterprise engaged in water treatment products research and development, production and sales. Products we produce include water treatment FRP RO membrane housing, desalination high pressure FRP membrane housing, ST/DTRO membrane housing, FRP high flow filter housing, filter housing, membrane housing for washing membranes, RO membrane, FRP composite tank for water treatment, FRP special-shaped (customized) tank, PE brine tank, water distributor, filter media, etc. We are a one-top water treatment product supplier. The products have passed the CE certification, NSF certification, the international ISO9001 quality management system certification, and the domestic hygiene license approval documents and other standards and specifications. We also have a number of self-developed products and production equipment, and become a leader in the water treatment FRP pressure vessel manufacturing industry.

The double tank softened water equipment is mainly composed of two resin tanks and a salt tank controlled by a control valve. A valve controls the two tanks and is equipped with two pistons, one to control the regeneration process and the other to switch between the two tanks and provide a continuous supply of softened water. What do you need to pay attention to when installing the can softening water equipment? Note the following when installing the two-tank softened water device 1. The equipment needs a simple horizontal foundation, about 250 ~ 450mm away from the wall, which can be arranged near the corner according to the actual situation; 2. Because the equipment itself is light, generally only the weight of the resin and water installed in the equipment can be considered; 3. The inlet and outlet pipes are standard flanged or threaded connections, which need to be fixed and supported, and cannot be supported by the valve body to prevent stress; 4. Y-type filter and water pressure gauge should be installed on the water inlet pipe to prevent the dirt in the water inlet pipe from blocking the controller. When the equipment is running, the flushing water is discharged, and the floor drain or drainage ditch is set nearby; 5. The salt water tank should be as close as possible to the softening tank, and the shorter the brine pipe, the better; 6. The sewage pipe should not be longer than 6m, do not install the globe valve, the outlet should not be higher than the valve body, the terminal opening to avoid siphoning, the less elbow the better; 7. Install a power distribution socket on the wall near the device, which should be equipped with a fuse (generally do not install a switch), and be well grounded. The above is the introduction of the matters that need to be paid attention to when installing the double tank softened water equipment. Under normal circumstances, the customer can produce 8 hours, choose a single valve single tank system can meet the use, and when the customer's water consumption needs 24 hours uninterrupted water supply, you need to configure a single valve double tank or double valve double tank softening water equipment.

There are many reasons if the water pressure is unstable during operation during the operation of the reverse osmosis and water treatment equipment. If you take measures without knowing the specific reasons, it is difficult to effectively solve the problem, so this article is for this article. It is said that there is an unstable water pressure in the reverse osmosis and water treatment equipment. 1. The water flow velocity is not appropriate. 2. System leakage. 3. Insufficient water pressure in the entrance of the high -pressure pump or leakage and air leakage of the pump. 4, precision filter filter element stain. 5. High -pressure pump failure. The above is the introduction of the reasons for the unstable water pressure of the reverse osmosis equipment. In actual use, if the water pressure of your reverse osmosis and water treatment equipment also appears, you can check it one by one according to the above method, and find the corresponding solution to the corresponding solution. Intersection

Soft -sources are a resin used for hard water softening, which can remove calcium and magnesium ions in water and achieve the purpose of softening water. Softening resin has a certain service life as other consumables. This article takes you to understand the service life of softening resin, so that everyone can have a deeper understanding of the soft -span resin before use. Usually high-quality softened water resin, such as the use of soft-used resins of imported brands in 3-5 years, but in actual operation, resin will be affected by some factors. The service life of the general domestic softening resin will be shorter, usually 1-2 years. However, in actual use, it is still necessary to determine according to the water quality of the water. If the raw water is too large and the resin is overloaded, the resin replacement frequency needs to be increased. 1. Because the raw water pipeline is usually a carbon steel pipe, the oxidation reaction occurs in water and pipelines, the generated iron ions are generated, and the function exchange group of the resin after entering the resin decreases with the extension of the operation time. Poor regenerative water quality. 2. Repeated resin: Due to the frequent regeneration of the resin for a long time, each time the resin is scrubbed, the mechanical wear between the resin and the mechanical wear between the resin, the cross -linking value (mechanical strength) of the resin will gradually decrease. The skeleton deformation, during operation, it appears to be yellow, and the water production cycle is significantly shortened, resulting in the ultimate regeneration effect is not ideal. Over time, there are many factors that reduce the performance of softening water resin. However, we can take some measures to improve performance and extend the service life of the system. By installing the activated carbon filter before the floppy water heater, chlorine and chloride can be removed from the water. If the water inlet pressure is unnecessary, it can sometimes reduce the hydraulic impact by installing the pressure regulator. Each time you add salt, you can greatly improve the problems caused by rail and manganese dirt by adding resin bed cleaners in the saline well in the salt water tank. Take these steps to ensure that your water soft heater can get the complete system life and performance. Softening resin replacement time is determined according to different water quality conditions. The worse the water quality, the shorter the resin life. Because there are many different substances in the water, the iron ions, aluminum ions, activated chlorine, organic substances and other substances can cause resin poisoning failure, so the length of the resin is also determined by the quality of the water. According to past experience: General water quality can be used for about 2-4 years; if the water quality is poor, the resin can be used for less than 2 years; the water quality is good, and the resin can be used for more than 3 years. Summary: The water quality is high, and the frequency of regeneration is frequent. Actually look at water quality.

Water is a waterwater device that is evenly arranged in a certain working area according to the law and completes the mission of this task. The editor of this article is about what the working principle of the clothing device is. Common clothing machines are perforated tube, nozzle, filter head, and rotating cloth water. For example, the cloth water heater in the sand filter is composed of a dry pipe-branched pipe-cloth water hole. The lower side of each branch of the tube is evenly arranged in small pores of the diameter of the equal pores. When you go to the support, then rinse the sand evenly from the pore eye of the support. The rotating fabric is a perforated tube that can rotate, and it is often used in water treatment. The function of the waterfall system is to splash water evenly on the entire pour. The performance of the distribution of water distribution will directly affect the uniformity of air distribution and the ability to cool up. The above is the introduction of the working principle of the clothing device. Nowadays, the cloth water heater can be widely used in mechanical filtering equipment, activated carbon filtering equipment, softening water treatment equipment, except for saline equipment.

Let's take a look at what softened water is. In daily life, we often see that the inner wall will produce scale after long -term use of kettles. what is the reason? It turns out that the water we take contains a lot of inorganic salts, such as calcium and magnesium salt. The naked eye can't find these salt in room temperature water. Once heated and boiled, many calcium and magnesium salts will precipitate in carbonate, and scald will form near the pot wall. The content of calcium and magnesium ions in water is usually represented by hardness indicators. Hardness 1 degree is equivalent to 10 mg of calcium oxide per liter. Water below 8 degrees is called soft water, water above 17 degrees is called hard water, and water between 8 and 17 degrees is called moderate hard water. Rain, snow, rivers, and lakes are soft water, and spring water, deep well water, and sea water are hard water. Let's take a look at the difference between other water for softened water Original water refers to unprocessed water. In a broad sense, water before entering the water treatment process is also called water treatment raw water. For example, the water from the water source is called raw water. Sofele water refers to the hardness in water (mainly calcium and magnesium ions in water). During softening, the water is reduced, and the total salt content is unchanged. Except salt water refers to the removal or reduction of salt in water (mainly strong electrolytes dissolved in water). Its conductivity is generally 1.0 ~ 10.0 μs/cm, the resistivity (25 ° C) (0.1 ~ 1.0) × 106 · cm, and the salt content is 1 ~ 5mg/L. Pure water refers to the strong electrolytes and weak electrolytes in the water (such as SIO2.CO2, etc.). ) It is removed or reduced to the degree. Its conductivity is generally: 1.0 ~ 0.1 μs/cm, and conductive rate (1.01.010.0) × 106Ω · cm. The salt content is 1 mg/L. Ultra -pure water refers to gas, colloid and organic matter (including bacteria, etc.). ) Almost completely removed the conductivity in the water. It was also removed to a very low level. Its conductivity is generally 0.1 ~ 0.055 μs/cm, the resistivity (25 ° C)> 10 × 106Ω · cm, and the salt content is 0.1mg/L. The ideal pure water (theoretically) conductivity is 0.05 μs/cm, and the resistivity (25 ° C) is 18.3 × 106. What is the softening water treatment? The raw water -in -situ cationic resin replaces the calcium magnesium ions in the raw water. The boiler in the boiler filtered by the soft water equipment becomes a boiler with low hardness. working principle Ion exchange method Methods: Exchange resin with a specific cation, and use sodium ions instead of calcium and magnesium ions in the water. Due to the high sodium degree, it is avoided by the increase in the temperature. Features and effects: The effect is stable and accurate, and the process is mature. Hardness can be reduced to 0. Scope of application: Catering, food, chemical industry, medicine and other fields, air conditioning, industrial circulating water and other applications. The most commonly used standard method. Electromagnetic method Methods: The electric field or magnetic field added to the water, change the ion characteristics, change the deposition speed and sedimentary physical characteristics of calcium carbonate (magnesium carbonate), and prevent the formation of hard staining. Feature effects: small equipment investment, convenient installation, and low operating costs. The effect is unstable and there is no uniform measurement standard. Because the main function only affects the physical properties of scale within the range, there are restrictions on the use time and distance of water after processing. Scope of application: It is mainly used for the treatment of recycling cooling water in business (such as central air conditioners) and cannot be used for industrial production and boiler water supply treatment. Membrane separation Methods: Najia filter (NF) and reverse osmosis membrane (RO) can intercept calcium and magnesium ions in the water, which fundamentally reduces the hardness of the water. The hardness can only fall to the range. Feature effects: The effect is obviously stable, and the scope of water application after treatment is wide. High water inlet pressure is high, and equipment investment and operating costs are high. Scope of application: generally less used for special softening treatment. Lime method Method: Add lime to water. Feature effect: The hardness can only fall to the range. Scope of application: high and hard water with large flows. Add medicine Methods: Adding a dedicated stuffing agent to the water can change the combination characteristics of calcium and magnesium ions and carbonate ions, so that the dirt cannot be deposited. Features: Little investment at one time and wide adaptability. When the water volume is soft, the operating cost is high. Scope of application: Because chemicals are added, the application of water is very limited, and generally cannot be used for drinking, food processing, and industrial production. It is rarely used in the civilian field. The workflow and work requirements of softening water equipment 1) Soft -water equipment workflow. Work (sometimes called water production, the same below), anti -washing, salt suction (regeneration), slow washing (replacement), and fast washing. All the processes of different soft water equipment are very close, but due to the actual process or control needs, there may be some additional processes. Any soft water equipment based on sodium ion exchange is developed on the basis of these five processes (of which automatic soft water equipment will increase the saline injection process). Anti -wash: After working for a period of time, the equipment will intercept dirt caused by a large amount of raw water in the upper part of the resin. After removing these dirt, the ion exchange resin can be fully exposed and the regenerative effect can be guaranteed. The anti -washing process was to rinse water from the bottom of the resin, flowing out of the top, and washed away from the intercepted dirt from the top. This process usually takes about 5-15 minutes. Salt suction (regeneration): In the process of injected salt water into the resin tank, traditional equipment is used to inject salt water with salt pumps, and automatic equipment uses a special built -in injection to inhale saline (as long as the water is pressured). In the actual work process, salt water flows through the resin at a slower speed than soaking resin with salt water. Therefore, the soft water equipment uses salt water to flow slowly across the resin for regeneration. This process usually takes about 30 minutes, and the actual time is affected by the amount of salt. Slowly rinse (replace): After flowing through the resin with salt water, slowly rinse all the salt in the resin at the same speed. Because in this flushing process, there are still a large number of calcium and magnesium ions on the functional group exchanged by sodium ions. According to actual experience, this process is the main process of regeneration, so many people call it replacement. This process is usually the same as the salt absorption time, about 30 minutes. Quickly rinse: In order to clean the residual salt, the flow of the resin process with raw water should be used to rinse the resin process with the actual work. Generally speaking, the fast rinse process is 5-15 minutes. 2) Technical indicators and work requirements for softening water equipment: Entry water pressure: 0.18-0.6MPa. Work temperature: 1-5 ℃ Source water hardness: 8mol/L. Operation method: Automatic/manual water hardness: ≤0.03mol/L. Renewal: NACL Regeneration Method: Shun flow/inverse flow. Exchange agent: 001*7 Starteable acid ion exchanges resin. Control method: Time/flow work power supply: 220V/50Hz. The role of softening water treatment 1. The use of softening water equipment saves a lot of fuel waste. When the boiler is scald, a boiler with a working pressure of 1.4MPa will produce 1 mm scale, which wastes 8%of the fuel. 2. Increase thermal efficiency and reduce the output. When the boiler evaporates the surface, the heat side of the fire cannot be transmitted to the water side quickly, which will reduce the output of the boiler. If the boiler dirt due to improper water treatment, the evaporation capacity of the boiler is reduced by one -third, and the automatic operating line cannot be driving due to insufficient gas supply. 3. Use soft water equipment to reduce the amount of boiler maintenance. It is difficult to remove after the boiler board or pipeline is scattered, especially because the boiler leakage, cracks, damage, deformation, corrosion and other diseases. It not only damages the boiler, but also consumes a lot of manpower and material resources for maintenance, which not only shortens the operating time, but also increases maintenance costs. 4. Reduce the application of softening water equipment and endanger safety. The accidents caused by boiler scaling account for more than 20%of the total number of boiler accidents, which not only causes equipment loss, but also threatens personal safety. The infrastructure and operating costs of water treatment account for a quarter of various saving costs. Soft water treatment equipment Soft -watering equipment, as the name suggests, is a device that reduces water hardness, mainly removes calcium and magnesium ions in water. Generally speaking, it is a device that reduces water hardness, mainly used to remove calcium and magnesium ions in water. Sterilization and algae, anti -stain removal. Soft water equipment cannot reduce the total salt content in the water during the softening water. Widely used in water equipment systems such as hot water boiler system, thermal exchange system, industrial cooling system, and central air -conditioning system. working principle Because the hardness of the water is mainly formed and expressed by calcium magnesium, the cation is generally used to exchange resin (floppy) instead of the CA2+.mg2+(the main component of scale) in the water. With the increase of CA2+.mg2+in the resin, the resin removal of CA2+.

Softening Resin is a resin used to soften hard water. It can remove calcium and magnesium ions in the water to achieve the purpose of softening the water. Softened resin, like other consumables, has a certain service life. This article will take you through the service life of softened resin so that you can have a deeper understanding of softened resin before use. Water Softener Resin is a resin used to soften hard water. It can remove calcium and magnesium ions in the water to achieve the purpose of softening the water. Softened resin, like other consumables, has a certain service life. This article will take you through the service life of softened resin so that you can have a deeper understanding of softened resin before use. Service life of softened resin Generally, high-quality water softening resins, such as imported brands of softening resins, have a service life of 3-5 years. However, in actual operation, the resin will be affected by some factors. Generally, the service life of domestic softening resin will be shorter, usually 1-2 years. However, in actual use, it still depends on the quality of the treated water. If the hardness of the raw water is too high and the resin is overloaded, the frequency of resin replacement needs to be increased. What factors affect the service life of softened resin? 1. Since raw water pipelines are usually carbon steel pipelines, an oxidation reaction occurs between the water and the pipeline to generate iron ions. After entering the resin, the functional exchange groups of the resin decrease with the extension of the operating time, which is manifested by high salt consumption. Reclaimed water quality is poor. 2. Repeated regeneration of the resin: Due to the frequent regeneration of the resin over a long period of time, the resins will scrub each other during each regeneration. Due to water pressure and mechanical wear between the resins, the cross-linking value (mechanical strength) of the resin will gradually decrease. The skeleton is deformed, and the water produced sometimes turns yellow during operation, and the water production cycle is significantly shortened, resulting in an unsatisfactory final regeneration effect. How to extend the service life of softened resin? There are many factors that can degrade the performance of water softening resin over time. However, there are some things we can do to improve performance and extend the life of the system. Chlorine and chloramines can be removed from your water by installing an activated carbon filter before your water softener. If the incoming water pressure is unnecessarily high, hydraulic shock can sometimes be reduced by installing a pressure regulator. Problems with iron and manganese fouling can be greatly reduced by adding a resin bed cleaner to the brine well of your Brine Tank every time you add salt. Taking these steps can help ensure that your water softener will receive full system life and performance. How long does it take for softened resin to be replaced? The replacement time of softening resin is determined according to different water quality conditions. The worse the water quality, the shorter the life of the resin. Since there are many different substances in the water, including iron ions, aluminum ions, active chlorine, organic matter and other substances that can cause resin poisoning and failure, the length of the resin is also determined based on the quality of the water. Based on past experience: if the water quality is average, the resin can be used for about 2-4 years; if the water quality is poor, the resin can be used for less than 2 years; if the water quality is good, the resin can be used for more than 3 years. Summary: The water hardness is high, and the regeneration frequency is frequent. Actually look at the water quality.

Mixed ion exchange equipment, referred to as mixed bed, is equipment designed for ion exchange technology. The so-called mixed bed is to mix and load a certain proportion of cation and Anion Exchange Resin in the same exchange device to exchange and remove ions in the fluid. This article will talk about some advantages of hybrid ion exchange equipment. The advantages of mixed ion exchange equipment are as follows: 1. The effluent water quality is excellent, and the effluent pH value is close to neutral. 2. The effluent water quality is stable, and short-term changes in operating conditions (such as inlet water quality or components, operating flow rate, etc.) have little impact on the mixed bed effluent water quality. 3. Intermittent operation has little impact on the effluent quality, and the time required to restore the water quality to before the shutdown is relatively short. 4. The recovery rate reaches 100%. The above is an introduction to the advantages of mixed ion exchange equipment. Mixed ion exchange equipment is also divided into in vivo synchronous regeneration mixed bed and external regeneration mixed bed. The operation and the entire regeneration process of the synchronous regeneration mixed bed are carried out in the mixed bed. The Resin does not move out of the equipment during regeneration, and the anode and anion resins are regenerated at the same time. Therefore, it requires less ancillary equipment and is easy to operate.

Softened Water Treatment Equipment mainly uses Ion Exchange Resin to remove hardness ions such as calcium and magnesium in the water. When the ion exchange resin is saturated, it needs to be regenerated. At this time, the salt in the salt box is regenerated. However, some customers do not know much about the correct method of adding salt to softened water equipment. In this article, the editor will introduce to you the correct method of adding salt to softened water equipment. The correct method of adding salt to softened water equipment is as follows: 1. The amount of salt added is the amount of resin (L) multiplied by 0.24Kg, which is the amount of salt used; 2. The time for adding salt should be consistent with the resin regeneration cycle; 3. It is strictly prohibited to use industrial salt and iodized salt. Iodine has strong penetrating power on the surface of resin particles. Long-term use of iodized salt will reduce the surface strength, hardness, mechanical strength, volume expansion strength, and circular curvature of the resin. Easily broken, the exchange capacity of the resin is reduced (referring to strong acid resin); 4. It is recommended that you put the salt into a pure cotton bag, tie it up, and put it in the Brine Tank, which can effectively prevent the pollution of the salt box and blockage of the salt absorption system caused by insoluble particles; 5. The water level of the salt box after adding salt should not be lower than 2/3.

Softened water equipment is a Water Treatment System used to soften water. Its main function is to remove calcium and magnesium ions in the water to produce soft water. This article will talk about some matters that need to be paid attention to when installing softened water equipment. The installation precautions for softened water equipment are as follows: 1. The softened water equipment must be installed on a solid horizontal surface, and there should be drainage pipes nearby. 2. The salt tank should be placed close to the Resin tank. In order to increase the salt absorption rate, the length of the salt absorption pipe should be shortened as much as possible. 3. Filling quartz sand: Before filling, the central tube should be placed in the center of the resin tank, then quartz sand should be put in, and the sand layer should be paved at the bottom of the tank. 4. Filling resin: Put the processed resin into the resin tank according to the approved filling amount. 5. Align the upper end of the central tube with the socket in the center of the bottom of the control valve, and carefully turn the control valve clockwise (note: during the installation of the control valve, be sure to ensure that the central tube is inserted into the valve body) until the control valve is tight. On the tank. 6. Connect the pipes and power supply as shown in the installation schematic diagram. 7. When starting the softened water equipment, you should close the bypass valve, then open the outlet control valve, and finally slowly open the inlet control valve (Note: If the inlet control valve is opened too fast, water and residual air in the pipe will enter the water softener, causing The resin flows out of the resin tank with the water flow). 8. Set the time and program controller according to the method introduced in the manual. In the initial stage of use, it is necessary to strengthen water quality monitoring and adjust the restoration program according to changes in water quality to keep it in optimal working condition. 9. There should be enough regenerant in the Brine Tank to ensure the amount of salt used for the next cycle of regeneration. 10. After the above installation and debugging, sampling and testing will be carried out. If the water quality meets the requirements, water will be available.

Storage of membrane elements Store the components in a cool, dry warehouse, or package them for storage. The minimum temperature should be higher than 5°C, and it is best to keep it at 10-20°C. Preservation of membrane systems 1.Short-term storage No flushing is required within 2 hours of shutdown; If the machine is shut down for more than 2 hours, perform RO product water flushing for 20 minutes; 2. Medium-term storage If the machine is shut down for 3 days or more and within 30 days, follow the steps below to save: (1) Cleaning-in-line (CIP) RO Membrane element; (2) Use RO produced water to rinse for more than 30 minutes; (3) When the flushing is completed, keep the membrane in the flushing water (RO product water) and close the valve to keep the solution in the RO section; (4) Perform steps 2 and 3 once a week. (5) This method needs to ensure that the flushing water source is always clean, and be careful to prevent the growth of microorganisms in the pipelines and water tanks to avoid secondary pollution of the membrane elements. Long-term storage If the machine is shut down for more than 30 days, use bisulfite to preserve the RO membrane and follow the following steps: (1) Cleaning-in-line (CIP) ro Membrane Element; (2) Use RO produced water to rinse for more than 30 minutes; (3) Use 1.0% sodium bisulfite solution configured in RO produced water to flush the RO section; (4) When the RO section is filled with the solution (it is required to ensure that it is completely filled), close the valve to retain the solution in the RO section; (5) When the temperature is lower than 27°C, repeat steps 1, 2, and 3 with fresh cleaning solution every 30 days. When the temperature is higher than 27°C, repeat steps 1, 2, and 3 with fresh cleaning solution every 15 days; 6) The pH value of the solution should be controlled between 3.5-9.5 and should be tested regularly. If the pH value is not within the above range, the protective solution should be replaced, as long-term exposure to acidic or alkaline environments will cause damage to the membrane. Regularly monitor the concentration of acid sulfite. If the solution concentration is lower than 0.1%, a new solution should be used, and the temperature should be kept below 25°C; (7) When the ambient temperature is likely to be lower than 5°C, the system must be filled with antifreeze, and the pipelines must be protected against frost cracking. Usually 30% glycerin or 20% ethylene glycol (freezing point is about -10°C) can be used as antifreeze. The operation steps are the same as the long-term preservation method of the membrane above. The membrane is first chemically cleaned and rinsed with pure water, and then replaced with antifreeze and sealed; (8) When the RO System is ready to be restarted, open the water outlet valve, flush the system with low-pressure water until it is flushed, and discharge the produced water. Before resuming operation of the RO system, it is necessary to check the residual disinfectant in the produced water.

"Water hammer" is caused by air mixed in the pressure vessel. When starting the device, necessary means are not used to remove the air in the vessel, so that when the high-pressure water flow mixed with air moves into the vessel, it will produce violent vibrations. In severe cases, it will The Membrane Element will be smashed into pieces, causing irrecoverable losses. Common preventive measures are: (1) High-pressure pumps should be avoided by using soft-start methods, such as voltage reduction start, variable frequency speed regulation start, and series resistance start with automatic controller. (2) Avoid operating methods, such as closing or reducing the inlet valve at startup, and then slowly opening the valve until the system working pressure is reached. (3) Use control to prevent and avoid, such as using PLC to control an electric slow door opening to open the valve within tens of seconds. (4) Use installation techniques to prevent this, such as setting up a return pipe at the concentrated water discharge port so that the highest point of the pipe exceeds the highest pressure vessel in the reverse osmosis device, so that the pressure vessel will be filled with water when the device stops operating. The above points are commonly used measures in engineering applications. You can adopt all of them or adopt several points according to the actual situation. It is worth noting that point 4 is necessary no matter which project.

Effect of low temperature on RO performance 1. Water flux Normally, for every 1 degree change in temperature, the water production volume changes by about 3%, this is mainly due to changes in the viscosity of water. (Higher water temperature) Low water viscosity is more conducive to water flow through the membrane, that is: water flux changes with temperature decreases. 2. Desalination rate The decrease in water temperature will increase the desalination rate of the system (different types of membrane elements have different degrees of increase), which means an improvement in the quality of the produced water. Note: The above discussion of the impact of temperature on the membrane system refers to the same operating conditions, that is, the same raw water salt content, pH, system operating pressure and recovery rate, etc. How to avoid the impact of low temperature on the RO system Based on the above, the impact of low temperature on the RO system is mainly the lack of system output caused by reduced water flux. So how to avoid it? Generally speaking, there are the following ways: 1. Increase the temperature of raw water Since low water temperature causes a reduction in RO System water flux, the most direct way to solve this problem is to increase the raw water temperature. The most common approach is to heat raw water in pipelines (e.g. using plate heat exchangers, etc.) or in pretreatment water tanks (e.g. using steam coil heating, etc.). This method is more suitable for situations where there are heat sources in or near the water treatment system plant area. When heating raw water, attention should be paid to the selection of the location of the heating point. In real projects, it is often encountered that the temperature of the heated raw water drops again due to long pretreatment processes or the front water tank of the RO system being placed outdoors. 2. Increase operating pressure to make up for insufficient water production Since the water flux of the RO membrane system increases with the increase of operating pressure, when the water temperature is too low in winter, the system water production can be increased by increasing the operating pressure of the high-pressure pump. It is recommended to use a variable frequency pump to ensure the output balance of the RO system at different temperatures by adjusting the speed of the pump motor. Other advantages of using variable frequency pumps include: energy saving, increased system operation flexibility and system soft start. 3. Use low-pressure (large flux) RO membrane elements Balancing the system water production by increasing the system operating pressure for a long time will inevitably increase the system energy consumption. At this time, the system operating pressure can be reduced by selecting low-pressure (large-flux) RO membrane elements, and at the same time, the RO system can be prevented from operating at ultra-high pressure or even extreme conditions for a long time. Operate under pressure. It is worth noting that the design of the RO system should comprehensively consider the temperature range of the system operation. While fully considering the low temperature factors, the changes in system performance at high temperatures should also be noted. For example: many systems will appear in summer due to the increase in water temperature. The membrane flux (system output) increases and the salt rejection rate decreases. At this time, the system should be adjusted according to the end user's requirements for produced water quantity and quality. Storage of RO membrane under low temperature conditions The RO Membrane should be stored to avoid freezing. Once the Membrane Element freezes, it may cause irreversible damage to the performance of the membrane element. In addition, for unopened new membrane elements, if the ambient temperature is likely to drop below 0°C, please cover the packaging box with insulation material or increase the temperature of the storage room.

Ro System are widely used in the water treatment industry. Ro Equipment often require pre-treatment because the impurities contained in the raw water will contaminate the Membrane Element and affect the stable operation of the system and the service life of the membrane elements. The reasons for adding pretreatment to the reverse osmosis system are as follows: 1. Prevent contamination on the membrane surface, that is, prevent suspended impurities, microorganisms, colloidal substances, etc. from adhering to the surface or fouling the flow channels of the membrane elements. 2. Prevent scaling on the membrane surface. During the operation of the reverse osmosis device, due to the concentration of water, some insoluble salts such as CaCO3, CaSO4, BaSO4, SrSO4, CaF2, etc. are deposited on the membrane surface, so the generation of these insoluble salts must be prevented. 3. Ensure that the membrane is protected from mechanical and chemical damage so that the membrane has good performance and a long enough service life.

Ro Equipment generally works indoors. If the operator works around the equipment for a long time, he will definitely hear the sound made by the equipment. Under normal circumstances, the sound of the reverse osmosis equipment is not very loud and is acceptable. However, if you hear a very loud noise coming from your device it may be time to look into the cause. So how should we deal with this larger noise to better reduce the noise problem of the equipment? The core of the reverse osmosis equipment is the Ro Membrane. The water treatment technology of the entire equipment revolves around reverse osmosis. After the raw water is pressurized by the high-pressure pump, the raw water passes through the reverse osmosis membrane and becomes purified water. The water contained in the raw water Minerals and some impurities will be discharged through the concentrated water discharge valve with high pressure. After the raw water is pressurized, the pressure is about 0.8 MPa, and the water flows in a high-speed rotating manner, which will produce very loud noises, especially in the throttle valve part that discharges concentrated water. The concentrated water discharge shut-off valve plays a very important role in equipment production. It can adjust the ratio of water production and concentrated water discharge, and adjust the pressure and noise during the overall operation of the equipment. After the concentrated water is intercepted by the regulating valve, the space will suddenly increase due to the action of the regulating valve itself, and the high-speed rotating water will produce very harsh noises. The noise generated by the reverse osmosis equipment lies in the concentrated water discharge interception valve, so we need to modify this part to reduce the noise to the greatest extent. We use a 32mm steel tank at the concentrated water discharge throttle valve to connect a water channel in parallel, and then add a regulating valve. The function of this is to reduce the rotation speed of the water, reduce the flow rate of the water through diversion, and share the pressure of the throttle valve. , adjust the ratio of water production and concentrated water discharge. Through the above technical transformation, the noise problem of pure water production equipment can generally be solved. The above is the reason why Ro System makes loud noise and the solutions are introduced. I hope it will be helpful to you.

1. Washing Start the intermediate water pump, open the mixed bed water inlet valve and exhaust valve, and flow water from top to bottom. When the water flow reaches the equipment, close the exhaust valve and open the lower exhaust valve to stabilize its normal water production flow. The working flow rate is 35m/h, and the water outlet If the lead is ≤0.2μs/cm, it will switch to water production. 2. Water production Open the mixed bed water outlet valve, close the lower discharge valve, and stabilize the water production to the specified set value until the water production cycle ends. 3. Regeneration (1) Backwash pre-stratification: Open the backwash water inlet valve and the upper discharge valve, and perform backwash stratification at a flow rate of 10m/h, or keep the Resin in a fully flowing state so that the normal particle resin is not flushed out by the water flow. It is advisable to control the backwash flow until the end point of backwash is when the anin and cation resins are basically stratified. (2) Failure: Open the alkali regeneration water dilution valve, alkali metering box outlet valve, mixed bed alkali inlet valve and lower discharge valve, start the regeneration pump, the flow rate is preferably controlled at 5m/h, the time is 5 minutes, and the regeneration water temperature is 40~ 50℃. Note: (1) and (2) are only used when the Mixed Bed Resin has been used for a long time and is seriously polluted and the layers are unclear. (3) Backwash stratification: Open the backwash water inlet valve and the upper discharge valve, and perform backwash stratification at a flow rate of 10m/h. The backwash flow rate or flow rate is the same as the backwash pre-stratification. The backwash end point is Yin and Yang. Until the resin junction is completely stratified, the water inlet valve should be slowly closed at the end of backwashing to allow the resin particles to gradually settle to achieve the best stratification effect. (4) Settlement: Close the backwash inlet valve and upper discharge valve, open the exhaust valve and lower discharge valve, so that the expanded resin after backwashing will settle naturally and evenly, and the liquid level in the container will drop to 200mm above the resin level. (5) Regenerant addition: Use the synchronous regeneration method, open the regeneration system regeneration water dilution valve, acid and alkali metering box outlet valve, mixed bed acid and alkali inlet valve, middle discharge valve, start the regeneration pump, acid and alkali regeneration flow will be even. 5m/h is appropriate, and the regeneration time is determined according to actual needs. The temperature of the regeneration water for alkali injection should be heated to 40-45°C to achieve better regeneration effects. (6) Replacement: Close the acid outlet valve and alkali outlet valve of the metering box, and perform replacement cleaning at the same working flow rate as the regenerant injection. The time will be 20 minutes or determined when the medium discharge water indicator reaches the set indicator. 4. Mix (1) Drainage Open the exhaust valve and lower drain valve, and confirm that the accumulated water in the container is drained to a position 200mm above the resin layer, so that the resin layer has sufficient space for movement. (2) Mix Open the upper exhaust valve, exhaust valve, and air inlet valve. The air inlet pressure is generally controlled at 0.1~0.15MPa and the mixing time is 2 minutes, or determined based on the standard for the two Ion Exchange Resin in the container to be fully mixed. (3) Drainage Open the lower drain valve; drain the water level in the container below the resin level. At the end, drain the water as quickly as possible to promote the resin to sink quickly to prevent the resin from re-separating during the settling process, causing incomplete mixing. However, at the same time, attention should be paid to preventing the resin from re-separating during the settling process. layer dehydration. 5. Washing Start the intermediate water pump, open the mixed bed water inlet valve, close the backwash discharge valve and the lower discharge valve. When the water flow fills the equipment, close the exhaust valve, open the lower discharge valve, and use the water production flow as the positive wash flow (some changes in flow will also No problem), enter the normal washing mode until the outlet water conductivity is <0.2μs/cm. The equipment then switches to normal water production working condition or standby state.