1. Overview

The sodium hypochlorite generator is carefully researched by our factory by carefully summarizing the existing equipment and technical characteristics at home and abroad, learning from each other's strengths and making up for the shortcomings. It is a simple and small combined chlorine preparation device.
Sodium hypochlorite is a strong oxidant and disinfectant, which is produced by electrolysis without diaphragm, which is obtained from a wide range of inexpensive industrial or dilute solutions of seawater. To ensure the freshness and high activity of sodium hypochlorite. To ensure the disinfection effect, the device will add the generated sodium hypochlorite while generating. It has the same oxidizing and disinfecting properties as chlorine and chlorine compounds.
This device is mainly used for the treatment of bacteria-containing sewage in hospitals, the treatment of cyanide-containing wastewater from electroplating, and also for the disinfection of swimming pools, drinking water, domestic sewage, the environment of food processing plants, and disinfection of tableware and drinking utensils in restaurants and public canteens. .
With the development of my country's four modernizations, this small chlorine generation device will surely play an important role in my country's environmental protection projects, water treatment and disinfection processes, etc.
2, Equipment features
(1) JYW type sodium hypochlorite generator is a combination form, the dissolution of salt, the deployment of dilute salt water, dosing and measurement and sodium hypochlorite circulation take place in one tank, with less investment, less land occupation, faster start-up, and installation. flexible.
(2) The generator is a combination of tubular, internal cooling, unipolar, and serial connection. The anode of the generator is based on titanium and coated with ruthenium dioxide, which has low potential and long life. under normal operating conditions. Each one occurs continuously for 200-300 hours. The generation process of sodium hypochlorite is in the form of diaphragm type natural circulation. Therefore, the utilization rate of salt is high, the current efficiency of the electrolysis process is high, the yield of sodium hypochlorite is large, the energy consumption is small, and the operating cost is low.
3. Working principle
The saline solution contains several ions such as Na+, H+, OH-, Cl-, etc. According to the theory of electrolysis, when the electrode is inserted, it is under a certain voltage. The electrolyte solution conducts electricity due to the movement of ions and the reaction of the electrodes. At this time, negative ions such as Cl- and OH- move to the anode, while positive ions such as Na+ and H+ move to the cathode, and discharge occurs on the corresponding electrodes, thereby oxidizing The reduction reaction produces the corresponding substance.

The electrolysis process of brine solution is more represented by the following reaction equation:
NaCI=Na+

Anode electrolysis:
H 2 0=H+8
2Cl--2e→C12↑

Cathodic electrolysis:
2H++2e→H 2 ↑
in a non-diaphragm electrolysis device. The electrolyte and electrolysis product hydrogen escape from the solution, and the others are all in an electrolytic cell. Since the hydrogen plays a certain role in stirring the solution during the escape process, a series of electrolysis products between the two electrodes occur. The chemical reaction, the reaction equation is as follows:

2NaCl+2H₂O→2NaOH+H₂ ↑+C₁₂ ↑
2NaOH+C₁₂ →NaC_l0+NaCl+H₂0

In non-diaphragm electrolytic brine, the overall equation of the solution is obtained by adding the two reaction equations listed above.
NaCl+H 2 O+2F→NaCl0+H 2 ↑
where: F is the Faraday electrolytic constant, which is 26.8 ampere hours, or 96487 coulombs.

4. Equipment selection parameters