Right-angle ball valve with pressure relief function

Abstract

The invention relates to a right-angle ball valve with a pressure relief function. The right-angle ball valve comprises a valve body with a valve cavity, a fluid inlet and a fluid outlet are formed inthe different directions of the valve cavity, and the valve cavity is internally provided with a valve element driven by a handle to rotate; the valve element is provided with a valve element flowingchannel, wherein the valve element flowing channel can communicate the fluid inlet with the fluid outlet at the specific rotation angle, and the fluid inlet can be opened or closed through rotation of the valve element; the valve body is further connected with a pressure relief valve; and a pressure relief flowing channel communicating the fluid outlet with an inlet of the pressure relief valve is formed in a base body of the valve body. When the ball valve is closed and opened, the pressure relief capacity can be achieved, the structure is compact, the size is small, and using reliability ishigh.

Description

technical field [0001] The invention relates to a valve for fluid control, in particular to a right-angle ball valve with pressure relief function. Background technique [0002] Compared with other valves that control the flow of medium in pipelines, ball valves have the advantages of small medium resistance and convenient operation. Especially the right-angle ball valve has the advantages of compact installation size and neat and beautiful appearance in some corner positions with limited size. Chinese patent 201620147991.0 discloses a right-angle ball valve, which includes a valve body with a water outlet pipe, a water inlet pipe, a valve stem, a ball core and a handle. The handle is connected, and the water inlet pipe is connected to the side of the valve body relative to the ball core. The outer wall of the valve body is also provided with a positioning block, and the handle is provided with two symmetrical positioning grooves that are rotationally abutted with the posit...

AI Technical Summary

Problems solved by technology

However, in this solution, only when the valve is in the open state and the inlet and outlet are connected, the pressure relief chamber can communicate with the medium channel, and the pressure relief function is effective. When the ball valve spool is in the closed state, through the The pressure relief channel hole is reserved, and the pressure relief function can only be effective for the medium pressure of the outlet section of the Unicom ball valve, and cannot relieve the pressure of the medium pressure in the closed state before the entrance section closed by the ball valve.

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