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Assembly method of anti-shock swing check valve

An assembly method and check valve technology, applied in the direction of valve device, control valve, function valve type, etc., can solve the problems of high impact force on the sealing surface of the valve seat, easy to generate water hammer, fast closing speed, etc., to prevent damage to the valve , highlight the substantive features, and prevent the effect of water hammer

Active Publication Date: 2018-12-18
JIANGSU GAOTE VALVE IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: in the process of rotating and closing the check valve disc around the pin shaft, the closing speed is prone to be too fast, resulting in excessive impact force on the sealing surface of the valve disc and the sealing surface of the valve seat, which is easy to be damaged; at the same time, the check valve disc When closing quickly, it is easy to generate water hammer, which leads to the occurrence of harmful situations such as valve damage

Method used

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  • Assembly method of anti-shock swing check valve
  • Assembly method of anti-shock swing check valve

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Embodiment Construction

[0017] The accompanying drawings show the structure of the present invention, and the relevant details will be further described below in conjunction with the accompanying drawings. The anti-shock swing check valve includes a valve body 1, a valve cover 10, a valve seat 2, a check valve disc 3, a pin Shaft 9, rocker 8 and circular buffer device, the valve cover 10 is installed on the top of the valve body 1, a chamber is provided in the middle of the valve body 1, and flow passages for medium circulation are provided at both ends of the valve body 1, and the valve Seat 2 has a seat sealing surface and is installed in the flow channel on the inlet side of the valve body. The pin shaft 9 is fixedly installed on the upper part of the chamber. The front of the check disc 3 is provided with a check valve that can form a seal with the seat sealing surface. Flap sealing surface, the upper end of the rocking bar 8 is hingedly connected with the pin shaft 9, and the circular buffer devi...

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PUM

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Abstract

The invention discloses an anti-impact swing type check valve assembling method. The method comprises the steps that 1, a valve body, a valve seat and a recoil platform are assembled; 2, a circular buffer device, a check valve clack and other parts are assembled; 3, whole assembling is conducted; 4, pressure testing is conducted; 5, an anti-impact swing type check valve passed the test is blown dry, painting is conducted on the outer surface, and storing is conducted. The assembling method has the advantages of being high in precision and qualified rate.

Description

technical field [0001] The invention relates to an improved invention of a check valve, in particular to an assembly method of an anti-shock swing check valve. Background technique [0002] The check valve is a commonly used valve in the pipeline system, which is mainly installed at the outlet of the pump, and it is used to connect and check the fluid medium in the pipeline system. The existing swing check valve mainly includes a valve body, a valve seat and a check disc. The pin shaft is installed in the inner cavity of the valve. When the medium enters the inner cavity of the valve from the inlet side of the valve, the medium pushes the check valve disc to rotate around the pin shaft to open. When no medium enters the valve inlet side, the check valve disc rotates around the pin shaft. closure. Its disadvantages are: in the process of rotating and closing the check valve disc around the pin shaft, the closing speed is prone to be too fast, resulting in excessive impact f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K15/03
CPCF16K15/03
Inventor 张新丰
Owner JIANGSU GAOTE VALVE IND CO LTD