Working process of softened water equipment

There are five processes: work (sometimes called water production, the same below), backwashing, salt absorption (regeneration), slow flushing (replacement), and fast flushing. All processes of different softening water equipment are very similar, but there may be some additional processes due to differences in actual processes or control needs. Any softening water equipment based on sodium ion exchange is developed on the basis of these five processes (among which, the fully automatic softening water equipment will increase the saltwater re injection process).

Backwash: After working for a period of time, the equipment will intercept a lot of dirt brought by the raw water on the upper part of the resin. After removing these dirt, the ion exchange resin can be fully exposed, and the regeneration effect can be guaranteed. The backwashing process is when water is washed in from the bottom of the resin and out from the top, which can wash away the dirt intercepted at the top. This process usually takes about 5-15 minutes.

Salt absorption (regeneration): The process of injecting salt water into a resin tank. Traditional equipment uses a salt pump to inject salt water, while fully automatic equipment uses a dedicated built-in sprayer to suck in salt water (as long as the inlet water has a certain pressure). In practical work, the regeneration effect of salt water flowing through the resin at a slower speed is better than simply soaking the resin in salt water. Therefore, softening water equipment adopts the method of slow flow of salt water through the resin for regeneration, which generally takes about 30 minutes. The actual time is affected by the amount of salt used.

Slow flushing (displacement): After flowing salt water through the resin, the process of slowly flushing all the salt in the resin with raw water at the same flow rate is called slow flushing. Due to the fact that a large number of calcium and magnesium ions on functional groups are still exchanged by sodium ions during this flushing process, according to practical experience, this process is the main process of regeneration, so many people call this process displacement. This process is generally the same as the salt absorption time, which is about 30 minutes.

Quick flushing: In order to thoroughly flush away residual salt, a flow rate similar to actual work should be used to flush the resin with raw water. The effluent from this process should be soft water that meets the standard. Generally, the fast flushing process takes 5-15 minutes.

Due to the fact that the hardness of water is mainly formed and expressed by calcium and magnesium, cation exchange resins (water softeners) are generally used to replace Ca2+and Mg2+(the main components that form scale) in water. As the Ca2+and Mg2+in the resin increase, the efficiency of removing Ca2+and Mg2+gradually decreases. After the resin absorbs a certain amount of calcium and magnesium ions, it must be regenerated. The regeneration process is to rinse the resin layer with saline solution in the salt tank, replacing the hardness ions on the resin. The resin is then discharged from the tank with the regeneration waste liquid, and the softening exchange function of the resin is restored.

Due to the fact that the hardness of water is mainly formed by calcium and magnesium, the principle of sodium ion exchange softening treatment is to pass the raw water through a sodium cation exchange resin, allowing the hardness components Ca2+and Mg2+in the water to exchange with Na+in the resin, thereby adsorbing Ca2+and Mg2+in the water Mg2+， Soften the water. If RNa represents sodium resin, the exchange process is as follows:

2RNa+Ca2+=R2Ca+2Na+

2RNa+Mg2+=R2Mg+2Na+

After passing through the sodium ion exchanger, Ca+and Mg+in the water are replaced with Na+.

The operation process of a general control valve is: operation, backwashing, salt suction, slow washing, salt tank replenishment, and forward washing.

Product features:

1. High degree of automation: After initial installation and debugging, the fully automatic softening water equipment can achieve continuous water production under automatic conditions by manually adding regenerated salt on a regular basis, saving a lot of manpower and material resources.

2. Large work exchange capacity and low salt consumption: The fully automatic softening water equipment achieves strict automatic control by avoiding the influence of human factors. Generally, the resin work exchange capacity can reach about 1000 grams per cubic meter, while the salt consumption can be less than 100 grams per gram equivalent.

3. Low power consumption: Commonly used manual equipment requires at least one salt pump and often experiences corrosion problems, with a large maintenance workload that directly affects the safe and stable operation of the equipment. Fully automatic equipment does not require a salt pump and has lower power consumption.

4. Anti corrosion and anti pollution: The bed of the fully automatic softened water equipment is made of anti-corrosion materials such as fiberglass, and the pipeline is made of ABS engineering materials, which have strong corrosion resistance and completely solve the problem of equipment corrosion.

5. Reasonable structure and easy installation: The overall design of the fully automatic equipment is reasonable, and the footprint is greatly reduced compared to traditional equipment. The lightweight structure also makes equipment installation convenient, and can be flexibly arranged according to site conditions.

6. Reliable performance and stable operation: Based on years of practical experience and application, the fully automatic water softening equipment has stable performance, sensitive and reliable action, and has never experienced any abnormal situations. Combined with our company's rich design and practical experience, as well as comprehensive after-sales service, the equipment is in good operating condition.