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display cases safe operation and first aid knowledge (3)
author: supermarket refrigerated showcase category: walk-in display coolers Views: 571Time: 2016-08-22
safe operation and first aid knowledge (3)
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emergency rescue
1) First aid measures in the event of ammonia leakage If the ammonia leakage accident occurs in the computer room, you should first correctly judge the situation, turn on the accident exhaust fan, and organize experienced technicians to wear protective equipment to enter Rescue in the engine room. First shut down all operating equipment and look for leaks of ammonia. If ammonia leaks in the high-pressure pipeline, the valves at both ends of the leaking ammonia port and the pipeline connected to the relevant equipment should be cut off. The method of venting can be used. After the remaining ammonia in the pipe is exhausted, the pipe is purged with fresh air, and then repair welding is performed. If ammonia leaks in the low-pressure system pipelines (such as the cooling equipment in the
display cases), the location of the leak should be quickly identified, and the liquid supply valve and return valve of the cooling equipment in the cold room should be closed. If the ammonia gas in the cold room is very strong, you can turn on the fan to remove the ammonia gas and spray it with acetic acid solution to neutralize it, then clamp the leaking point with a pipe clamp, and then transfer the cargo. Wait until the cargo is emptied and the display cases temperature rises. Repair welding (operators can flexibly adopt safe and effective treatment methods according to the different characteristics and specific conditions of the refrigeration system).
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2) first aid measures for ammonia poisoning The harm caused by ammonia to the human body can be roughly divided into the following three categories.
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(1) Ammonia splashed on the skin will cause Guo Qilian burns.
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(2) Ammonia or ammonia gas can irritate or burn the eyes.
(3) Ammonia gas is inhaled by the human body, which can irritate the respiratory organs, and cause coma and even death. The first-aid measures for injury are: when ammonia splashes on the skin or clothes, immediately take off the clothes wetted by ammonia splash, wash the skin with water or 2% boric acid water, and pay attention that the water temperature should not exceed 46℃. Thousands of heating, when thawed, then apply disinfected petroleum jelly, vegetable oil or 10,000 flower oil. When the respiratory tract is stimulated by ammonia to cause a severe cough, you can use a wet towel or water to wet your clothes and cover your nose and mouth. As ammonia is easily soluble in water, it can significantly reduce the irritation of ammonia. You can also use vinegar to moisten the towel, and then cover your mouth and nose. As the vinegar vapor neutralizes the ammonia, the ammonia turns into neutral salt, which can also reduce the irritation and poisoning of ammonia to the respiratory tract. When the respiratory tract is more irritated by ammonia and the poisoning is more serious, you can rinse your mouth with boric acid drops and drink 0.5% citric acid water or lemon juice for the poisoned person. But do not drink plain water, because of ammoniaEasily soluble in water, it will promote the diffusion of ammonia. When ammonia poisoning is so serious that it causes weak breathing, or even shock or breathing stops, artificial respiration should be carried out immediately, and the poisoned person should be given a thicker vinegar and given pure oxygen breathing when possible. In such a serious situation, you should immediately call a doctor or send the poisoned person to the hospital for rescue. Regardless of the severity of poisoning or suffocation, the patient should be transferred to fresh air for first aid, and the patient should not be allowed to continue to inhale ammonia-containing air. For the organs below the abdomen, when a strong tingling sensation is caused by the adsorption of ammonia, you should immediately enter the pool to gradually relieve it.
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