Check valve used for air compressor

A technology for check valves and air compressors, applied in safety valves, balance valves, control valves, etc., can solve problems such as poor sealing performance, aggravated pipeline safety hazards, and existing sealing hazards, so as to reduce pipeline connectors and pipes. Road leakage point, easy to install and connect

Inactive Publication Date: 2010-06-23
SHANGHAI FEIHE IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a structure makes there are at least 6 welding seams and 3 sealing surfaces in the connecting line. There are welding hazards during the welding process, and there are sealing hazards at the sealing surfaces, and the disc check valve can only be installed on horizontal pipelines. And the tightness is poor, which aggravates the safety hazard of the pipeline

Method used

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  • Check valve used for air compressor
  • Check valve used for air compressor
  • Check valve used for air compressor

Examples

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Embodiment Construction

[0013] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0014] Depend on figure 2 It can be seen that the present invention includes: a body 60; the body 60 is directly connected to the air compressor exhaust port 1; the direction of the inlet and outlet 61 of the body 60 is at an angle of 90° to the direction of the air compressor exhaust port 1;

[0015] The body 60 further includes: a piston 62 communicating with the air compressor exhaust port 1 ; a return spring 63 is connected to the lower end of the piston 62 .

[0016] The present invention fully considers the phenomena such as swirl flow and cavitation when the compressed air passes through the valve channel, so as to minimize the pressure loss; on the premise of not reducing its safety, reliability and durability, the present invention directly connects the check valve to the The exhaust port of the air compressor; the direction of the in...

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PUM

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Abstract

The invention relates to a check valve used for an air compressor. The check valve comprises a body (60), wherein the body (60) is directly connected with an exhaust port (1) of the air compressor; and the included angle of the direction of an inlet / outlet (61) of the body (60) and the direction of the exhaust port (1) of the air compressor is 90 degrees. The invention has the benefits that connecting pieces of a pipeline can be reduced, and the leakage points of the pipeline can be reduced, thereby improving the safety and the reliability of the air compressor unit; the pipeline is convenient to be installed and connected, thereby beautifying and simplifying the pipeline and lowering the production cost; and the design of a returning spring can ensure that the medium can not flow back, and a host machine and a driving motor can not rotate reversely when the air compressor is unloaded or stopped.

Description

technical field [0001] The invention relates to a check valve for an air compressor, in particular to an inlet and outlet position structure of the check valve. Background technique [0002] A check valve is a valve that is automatically opened and closed by the flow of the medium itself to prevent the medium from flowing backward, also known as a check valve, one-way valve, reverse flow valve, or back pressure valve. The check valve is a kind of automatic valve. Its main function is to prevent the reverse flow of the medium, prevent the reverse rotation of the pump and the drive motor, and discharge the medium of the container. [0003] The check valve is particularly critical in the supporting parts of the single-screw air compressor (hereinafter referred to as the screw air compressor). The quality of the check valve directly affects the overall performance of the screw compressor. [0004] Most single-screw air compressors use a disc check valve. Because of its simple ...

Claims

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Application Information

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IPC IPC(8): F04C29/12F16K17/30F16K15/02
Inventor 郑雷飞
Owner SHANGHAI FEIHE IND GRP
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