Pressure-reduced water conveying valve

Abstract

The invention provides a pressure-reduced water conveying valve, belongs to the technical field of valves, and aims at solving the problem of poor pressure reduction effect of the existing pressure-reduced water conveying valve. The pressure-reduced water conveying valve comprises a valve body; a through hole of which two ends are respectively provided with a high pressure chamber and a low pressure chamber is formed in the valve body; a valve opening communicated with the through hole is formed in the outer surface of the valve body; a valve cover covers the valve opening; a leather bowl is arranged between the valve body and the valve cover; a pressure regulating chamber is formed between the leather bowl and the valve cover; a spring of which two ends are respectively propped to the leather bowl and the valve cover is arranged in the pressure regulating chamber; the length of the spring can be changed to drive the leather bowl to transversely displace in the through hole so as to connect or disconnect the through hole. The pressure-reduced water conveying valve has the advantages of being simple in structure and good in pressure reduction result.

Description

technical field [0001] The invention belongs to the technical field of valves and relates to a decompression water delivery valve. Background technique [0002] The pressure reducing valve is a valve that reduces the water pressure by adjusting the local resistance to the water flow in the valve body, can reduce the inlet pressure to a certain required outlet pressure, and can automatically maintain a stable outlet pressure; from the perspective of fluid mechanics, the pressure reducing valve It is a throttling element whose local resistance can be changed, that is, by changing the throttling area, the flow rate and the kinetic energy of the fluid are changed, resulting in different pressure losses, so as to achieve the purpose of decompression; then rely on the adjustment of the control and regulation system to make the valve The fluctuation of the back pressure is balanced with the spring force, so that the back pressure of the valve remains constant within a certain error...

AI Technical Summary

Problems solved by technology

[0003] However, in the prior art, the valve body and the bonnet are mostly connected by screws, and the influence of water flow impurities is not considered. The pressure reducing valve has a large volume, high production cost, low sensitivity, and low sealing performance. It is easy to cause water flow impurities to enter the water flow pressure reducing valve, which will affect the water flow pressure reducing effect and damage the water flow pressure reducing valve.

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