Anti-virus countermeasures
Some toxic media, such as chlorine, hydrogen chloride, barium chloride, sodium hydroxide, sulfuric acid and ammonia. , produced and used in the production process of this device, especially chlorine gas, because of its great toxicity, is the key prevention object.
(1) Selection of process parameters:
Attention should be paid to the selection of process parameters and quality control. On the premise of meeting the production conditions, try to choose low temperature and low pressure operation conditions to reduce chlorine leakage.
(2) Equipment material selection:
In order to minimize the possibility of leakage, attention should be paid to the selection of equipment and materials. Through the practical experience of other devices and similar projects and the knowledge of device design, the equipment should be able to ensure complete air tightness. Specific measures should include: higher vessel design margin, higher pipeline design grade and higher pressure grade key pipeline.
(3) Alarm and safety interlock:
For special sections and posts, such as discharge ports, sampling ports, storage tank valves, delivery pumps, compressors and other places where toxic substances may leak or accumulate toxic gases during abnormal operation, toxic gas detectors should be set up; In the control room, power distribution room and toxic substances equipment within 30 meters apart, it is appropriate to set up corresponding toxic gas detectors.
(4) isolator setting:
Control room, power distribution room, operation room, laboratory and other places with operating posts should be equipped with positive pressure ventilation system, which can withstand certain external pressure, and the air inlet is equipped with activated carbon adsorber. Leak detection system should be installed on the pipelines of ion-exchange membrane electrolyzer, high-purity hydrochloric acid synthesis furnace, caustic soda storage tank and liquid chlorine storage tank. The liquid chlorine storage tank should be equipped with an accident discharge pipeline, which can quickly empty the materials in the system to the accident discharge tank in case of leakage to prevent the accident from expanding.
(5) Strengthen personal protection:
Provide emergency showers and eye washers in all areas where people may be exposed to harmful substances, which may cause burns, irritation or skin damage; In addition to general protection such as protective glasses, gloves and eye washer, special gas masks should also be equipped; Personal protective equipment is mandatory for key operations, such as air breathing mask, full-body PVC protective clothing, gloves and protective glasses.
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