Non-return valve and non-return valve assembly

Abstract

The invention discloses a one-way valve assembly, which includes a valve plate, the valve plate has an inlet hole and a discharge hole, the inlet hole is driven by the movement of the piston to open and close, and the low-pressure fluid is sucked in. The discharge hole discharges high-pressure fluid through an open-close operation; and a one-way valve, in the shape of a helical plate spring structure, coupled with the inlet hole and the discharge hole of the valve plate, the one-way valve is pressed under the action of the fluid pressure Sometimes partially overlapping to prevent passage of fluid. Therefore, disturbances in fluid flow when opening the valve are reduced, thereby improving the efficiency of fluid flow, and the valve is smoothly closed along a helical line, thereby preventing noise and damage caused by impact.

Description

Technical field [0001] The present invention relates to a one-way valve, in particular to a one-way valve that improves operation efficiency by reducing flow resistance and increasing fluid flow. Background technique [0002] Valves are installed in pipes or containers to control the flow rate and pressure of fluids. Valves are of various types and uses. [0003] The one-way valve used in most mechanical devices that use gas or liquid includes a tubular flow suppression plate that prevents the fluid from flowing back and directs the fluid to flow in one direction. For example, the inlet valve and discharge valve of a reciprocating compressor can be regarded as one-way valves. [0004] Hereinafter, a reciprocating compressor will be taken as an example to illustrate the check valve of the prior art. [0005] figure 1 The structure of the compression part of a conventional reciprocating compressor is shown. [0006] Such as figure 1 As shown, the compression components of the ex...

AI Technical Summary

Problems solved by technology

[0020] However, as mentioned above, since the inlet plate 14a is not completely bent backwards, an obstacle is created that interferes with the flow path of the fluid to the inlet plate 14a.

Also, the closed inlet plate 14a collides with the valve plate 13 during discharge to generate a large noise

[0021] The above problems lead to a reduction in the overall efficiency of the compressor, and the large noise will cause discomfort to the user

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