Safety valve, pressure system and water heater

Abstract

The invention relates to the field of spring loaded valves. A safety valve provided by the invention comprises a valve body and a valve element, the valve element is fixedly arranged in an inner cavity of the valve body, and the inner wall of the valve body and the valve element jointly define a pressure relief passage; and a fastener is further included and is fixedly arranged on the valve body,and the fastener abuts against the end, far away from the pressure relief passage, of the valve element. The fastener abutting against the valve element is additionally arranged so that the valve element can be supported by the fastener when impacted by high-pressure fluid; and the capacity of the valve element to bear fluid impact is improved by abutting supporting of the fastener, the possibility that the valve element looses due to long-term fluid impact is reduced, the possibility of movement of the valve element towards the direction away from the pressure relief passage due to fluid impact is reduced, damage caused by fluid impact to the safety valve is prevented to a greater extent, and the safety valve is prevented from losing efficiency in advance.

Description

technical field [0001] The invention relates to the field of spring-loaded valves, in particular to a safety valve, a pressure system and a water heater. Background technique [0002] The safety valve automatically opens and closes according to the working pressure of the pressure system, and is generally installed on the equipment or pipeline of the closed system to protect the safety of the system. When the pressure in the equipment or pipeline exceeds the set pressure of the safety valve, the safety valve will automatically open to release the pressure, so as to ensure the normal operation of the equipment and pipeline, prevent accidents and reduce losses. [0003] However, when the pipeline pressure reaches the pressure relief pressure, the valve core is greatly impacted by the fluid, and the safety valve core is impacted by the changing pressure for a long time, and the valve core is easy to loosen after being impacted for a long time, and then the valve core is impacte...

AI Technical Summary

Problems solved by technology

[0003] However, when the pipeline pressure reaches the relief pressure, the valve core is greatly impacted by the fluid, and the safety valve core is impacted by the changing pressure for a long time, and the valve core is easy to loosen after being impacted for a long time, and then the valve core is impacted by the fluid. direction movement, causing the safety valve to release pressure in advance before the fluid pressure reaches the set pressure, causing the safety valve to fail to work normally, and affecting the normal operation of equipment and pipelines

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