The working principle of spring-loaded safety valve

The working principle of spring-loaded safety valve
The working principle of the spring-loaded safety valve is: when the gas pressure under the safety valve disc exceeds the pressing force of the spring, the disc is pushed open. After the valve flap is opened, the exhaust gas will act on the valve flap clamping ring due to the rebound of the lower adjusting ring, so that the valve will open quickly. As the valve flap moves up, the gas impacts on the upper adjusting ring, causing the exhaust direction to tend to be vertical downward. The reaction force generated by the exhaust pushes the valve flap upwards and keeps the valve flap in a certain pressure range. Sufficient lifting height. With the opening of the safety valve, the gas is continuously discharged, and the gas pressure in the system gradually decreases. At this time, the force of the spring will overcome the gas pressure acting on the valve flap and the reaction force of the exhaust, thereby closing the safety valve. Valve spring