Sodium hypochlorite generator principle and operation

1, the working principle of sodium hypochlorite generator

Sodium hypochlorite generator is a set of low concentration of salt water through the electrified electrode electrochemical reaction to generate sodium hypochlorite generator solution device.

2、Basic operation process of sodium hypochlorite generator

When working, first turn on the power, sodium hypochlorite generator will be ordinary industrial salt (about 0.35 yuan per kilogram) into the salt device to dissolve into 10% or so of the brine Open the valve to let the brine through the filtration and precipitation into the salt storage tank; and then, start the self-mixing switch, the equipment is automatically hooked up with the brine to the concentration of 3.5% or so of the dilute brine; and then open the valve to adjust the flowmeter, so that by the mixing of the brine according to the set flow rate through a set of cathode and anode tubes. Set the flow rate through a set of cathode and anode tube sandwich electrolyzer; sodium hypochlorite generator finally, start the rectifier current switch, while opening the cooling water valve to cool the electrolytic tank, sodium hypochlorite generator began to work. In this way, the whole device produces a standard sodium hypochlorite generator liquid (concentration of about 1%); finally, the liquid automatically flows into the liquid storage tank, which is convenient for storage and standby and ready to add.

Backwashing: after each shift operation, must be backwashed once, backwashing first open the air release valve, the existence of salt water in the pipeline to drain, and then open the backwash air and backwash water inlet to the water valve, rinse for about 10 minutes, and then find the air release valve to open to drain off the water to be the next time to be used.

Acid washing: generator cumulative operation of 250 hours need to be acid washing once, according to the water quality to extend or shorten the cycle of acid washing accordingly, acid washing, first open all the empty valves, the pipeline in the accumulation of brine drained off, and then open the valve into the acid and out of the acid valve until out of the acid bleeder tube organic pipe out of the acid, close the valve into the acid to be acid in the electrode tube to soak in acid for 1-2 hours and then the acid drained off, and then back Flush once, generally dilute hydrochloric acid blending concentration of about 10%.

3、Precautions

① general automatic work, no need for personal management, salt once can work (7-10) days, the lack of brine automatically shut down and alarm, salt must be backwash the generator once, work for about a month must be acid washed once.

② equipment operation, it is strictly prohibited to run without cooling, such as water supply in case of unit shutdown, the equipment is strictly prohibited.

③ Regularly check whether the power supply junction plug is loose heat, high salt tank in the net is blocked, timely exclusion.

④ Avoid smoke and fire indoors as much as possible, keep well ventilated, and equip with part-time personnel to manage the equipment.

4, sodium hypochlorite generator sterilizing viruses principle is roughly the following three modes of action: sodium hypochlorite generator elimination of the most important mode of action is through its hydrolysis to form hypochlorite, hypochlorite and then further decomposition to form a new ecological oxygen [O], the new ecological oxygen oxidation of the strong oxidizing bacteria and viruses on the denaturation of the proteins and other substances, sodium hypochlorite generator and thus lethal microorganisms of the source of the disease. In fact, the principle of chlorine disinfection is also mainly to produce hypochlorous acid, and then release the new ecological oxygen [O] way.

According to chemical determination, PPM level concentration of sodium hypochlorite generator in water is almost completely hydrolyzed into hypochlorous acid, sodium hypochlorite generator its efficiency is higher than 99.99%. The process can be expressed simply by the chemical equation as follows:

NaCIO + H20 = HCO + NaOH

HCIO HC + [O]

Secondly, hypochlorite in the sterilization, virus killing process, sodium hypochlorite generator can not only act on the cell wall, the virus shell, and because hypochlorite molecules are small, do not carry charge, but also penetrate into the bacteria (virus) body, and bacteria (virus) body protein, nucleic acid, and enzymes and other organic macromolecules oxidation reaction occurs, sodium hypochlorite generator so as to kill pathogenic microorganisms.

R-NH-R + HCO → R2NCI + H20

At the same time, hypochlorite produces chlorine ions can also significantly change the osmotic pressure of bacteria and viral bodies, sodium hypochlorite generator make their cells inactive and die.

In addition, the sodium hypochlorite generator is also able to decompose vegetables, fruits and other agricultural by-products on the residual trace pesticides. The vast majority of pesticides are composed of organic matter, sodium hypochlorite generator released by the new state of oxygen can oxidize and decompose these substances. Sodium hypochlorite generator which undoubtedly has a significant role in promoting the development of modern agriculture, fruit and vegetable packaging industry.

It is also worthwhile to confirm that, due to the disinfectant produced by the sodium hypochlorite generator is not like chlorine, chlorine dioxide and other disinfectants in the water to produce free chlorine, so it is generally difficult to form due to the presence of free chlorine and the generation of carcinogens that are not conducive to human health; not like ozone, as long as there is a very small amount in the air (0.001mg/m3) will be on the life of the damage and toxicity;

Moreover, it will not be like chlorine gas reacting with water to form hydrochloric acid, which will cause serious corrosion of metal pipes by sodium hypochlorite generator.

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