Today we will introduce you to another common gas – chlorine
What is chlorine?
Chlorine is a single substance formed by the chlorine element, with the chemical formula Cl2. It is a yellow-green, highly toxic gas with a strong pungent odor at room temperature and pressure. It is suffocating and has a higher density than air. It is easily compressed and can be liquefied into a yellow-green oily liquid chlorine.
★Application of chlorine
Chemical industry: preparation of propylene oxide, preparation of ferric chloride, preparation of hydrochloric acid, preparation of polyvinyl chloride, and preparation of bleach.
Metallurgical industry: mainly used for the production of metal titanium, magnesium, etc.
Electronic industry: high-purity chlorine is mainly used for dry etching, optical fiber, crystal growth and thermal oxidation in the electronics industry.
Pharmaceutical industry: chlorine is often used in pharmaceuticals and is often involved in the synthesis of chlorine-containing organic compounds. For example: amlodipine maleate tablets.
Pesticide industry: used as a raw material for the production of high-efficiency insecticides, fungicides, herbicides, and plant growth stimulants.
Disinfection of tap water: Chlorine disinfection can balance the dissolution, decomposition and synthesis of hypochlorous acid in water, with appropriate concentration and less residual toxicity in water.
Brewery wastewater treatment: Chlorine can deodorize and remove microorganisms, and has a high removal rate of biological oxygen demand and chemical oxygen demand, which can ensure the stability of recycled water quality and is more suitable for the treatment of brewery wastewater.
Removal of sulfur and phosphorus impurities in acetylene: Acetylene gas is the main raw material for PVC production. By using the strong oxidizing property of CIO- in chlorine water, acetylene gas can be sprayed and washed to remove H2S and H3P.
It can be seen that the application of chlorine is very extensive, which not only promotes the development of modern industry, but also profoundly changes the lifestyle and production mode of human beings.
★ Hazards of chlorine
Although chlorine has “many merits”, it also has a “terrible” side.
Emergency treatment of chlorine gas leakage
According to the impact area of gas diffusion, a warning area is demarcated, and irrelevant personnel are evacuated from the sidewind and upwind directions to a safe area. It is recommended that emergency response personnel wear fully enclosed chemical protective clothing with built-in positive pressure self-contained air respirators and wear rubber gloves.
If it is a liquid leak, you should also pay attention to preventing frostbite; it is forbidden to touch or cross the leak; do not let the leak come into contact with flammable materials, and cut off the source of the leak. It is forbidden to directly impact the leak or the source of the leak with water to prevent the gas from spreading through sewers, ventilation systems and restricted spaces. Build a dike to block liquid leaks, and spray dilute alkali solution to neutralize and dilute.
Special warning:
① Vehicles and personnel should enter from the upwind or side upwind direction;
② Strictly guard and set up on-site safety officers, determine evacuation signals, and implement full-process inspections;
③ Workers entering critical areas must be professional and capable, implement first-level protection, and take water gun cover;
④ Follow up and check the physical condition of rescuers to prevent secondary pollution and injury;
⑤ Professional personnel from the accident unit should be used as the main method to deal with the problem;
⑥ Organize the accident unit and experts and technicians from petrochemical, meteorological, environmental protection, health and other departments to provide technical support and medical support;
⑦ Minimize water or environmental pollution.
Chlorine safety solution
In view of the risks associated with chlorine, an effective gas monitoring system should be implemented in a targeted manner, and an effective safety plan should also be implemented. The chlorine safety solution developed by Chicheng Electric provides an innovative and efficient way to solve the problem of chlorine leakage and prevention.
Real-time monitoring: By installing chlorine detectors and gas alarm controllers in the factory area, the concentration of chlorine leakage can be monitored 24 hours a day to prevent problems before they occur.
Sound and light alarm: When the chlorine gas leakage concentration reaches or exceeds the preset value, the alarm and controller will promptly send out sound and light alarm signals to remind the on-duty personnel to take emergency measures.
Intelligent linkage: When the sound and light alarm signal is issued, the controller can also link the fan, sprinkler and other devices to prevent accidents.
Data analysis: Massive data storage can help the on-duty personnel analyze the occurrence of accidents and block the source of danger from the source.
Cost-effectiveness: The instrument has high sensitivity, strong reliability, and low replacement frequency. It can effectively prevent accidents and ensure the healthy development of the factory.
Instrument recommendation:
