Although the air compressor safety valve is small, it has a huge effect

Although the air compressor safety valve is small, it has a huge effect

Regardless of the small size of the valve of the air compressor, its function should not be underestimated. Just like the screw air compressor safety valve, it is a "small thing" installed on the oil and gas barrel, but it can play a role in safety protection in the air compressor system. When the system pressure exceeds the specified value, the safety valve is opened to discharge part of the gas in the system into the atmosphere, so that the system pressure does not exceed the allowable value, so as to ensure that the system does not cause accidents due to excessive pressure.

　　 The set pressure (set pressure) of the safety valve of the screw air compressor is the pressure at which it starts to jump. Generally, the set pressure is required to be greater than the normal working pressure and less than the z*max pressure of the system.

　　 There are two types of air compressor safety valves: spring type and rod type. Among them, spring type safety valves are the most widely used. As we all know, the tighter the spring, the greater the force required, that is to say, the compression force of the spring is proportional to the amount of deformation. As the opening height of the valve core increases, the compression of the spring also increases, and the resulting reaction force increases accordingly. This is also the working pressure required for the safety valve to return to its seat in time. There are many types of spring-loaded safety valves. Nowadays, the cylindrical spiral type is mainly used. The steel wire section is generally a circular compression spring. This spring has a typical linear force characteristic.

　　 Before installation and use, the air compressor safety valve should be adjusted to the specified pressure on the test bench, and the sealing of the safety valve should be checked. The adjusted and checked safety valve should be sealed. Safety valves in use should be inspected regularly, and they should be regularly checked in accordance with relevant technical supervision regulations.