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为了保证氨制冷设备的安全,在氨制冷设备容器(冷凝器、贮液器)上都必须装置安全阀,氨用安全阀常用弹簧式安全阀,阀芯材料一般采用不锈钢,阀座材料一般用45号钢。为保证安全运行和不浪费氨,要求安全阀启闭及时,灵活,关闭严密,否则,泄漏氨,浪费制冷剂,同时污染空气,影响工人健康。所以在修理安全阀中,必须严格要求。但是,由于不锈钢阀芯和钢阀座是金属密封,硬度较高,修理难度大。一个安全阀往往
In order to ensure the safety of ammonia refrigeration equipment, ammonia refrigeration equipment in the container (condenser, liquid receiver) must be installed safety valve, ammonia safety valve commonly used spring-loaded safety valve, the valve core material is generally stainless steel, the valve seat material 45 steel. In order to ensure safe operation and do not waste ammonia, safety valves are required to open and close in a timely, flexible and close manner. Otherwise, ammonia will be leaked and refrigerant will be wasted. At the same time, it will pollute the air and affect workers’ health. So in the repair of safety valve, we must strictly require. However, due to the stainless steel spool and steel seat is a metal seal, high hardness, difficult to repair. A safety valve often