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Arbitrarily adjustable device for maximum opening of check valve clack

A check valve, valve disc technology, applied in valve device, control valve, functional valve type and other directions, can solve the problems of inability to control the valve disc, medium pressure fluctuation, influence, etc., and achieve a significant effect of balancing

Pending Publication Date: 2019-10-22
SHANGHAI VALVE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the valve cannot control the position of the valve disc during operation, which may easily cause the opening of the valve to be unstable, cause large fluctuations in the medium pressure in the flow channel, and affect or even destroy the overall system.

Method used

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  • Arbitrarily adjustable device for maximum opening of check valve clack
  • Arbitrarily adjustable device for maximum opening of check valve clack
  • Arbitrarily adjustable device for maximum opening of check valve clack

Examples

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Effect test

Embodiment Construction

[0019] see Figure 1 to Figure 4 , in order to better understand the technical solution of the present invention, the following will be described in detail through specific examples:

[0020] see figure 1 , the check valve includes a disc 1 , a disc rocker 2 connected to the valve 1 , and a rotating shaft 3 connected to the valve rocker 2 . When the medium generates thrust on the disc 1, the disc 1 rotates around the shaft 3 under the traction of the rocker arm 2 to open the valve. When the thrust of the medium is insufficient, the disc 1 returns to the closed position by its own gravity. The disc rocker arm 2 and the rotating shaft 3 are connected to each other through a key 31 .

[0021] see figure 2 , the present invention is a check valve valve flap maximum opening adjustable device, the rotating shaft 3 of the valve extends through the valve body to the outside of the valve body, and its part outside the valve body is connected with a damping arm 5, and can be Drive ...

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Abstract

The invention discloses an arbitrarily adjustable device for maximum opening of a check valve clack. According to the device, a rotating shaft extends out of a valve body of a check valve and is respectively connected with a damping arm and a limiting arm with adjustable load bearing on the rotating shaft; and an adjustable limiting plate is further arranged on the valve body. When the valve is opened, the gravity of a part of the valve clack can be balanced by load, so that displacement fluctuation of the valve clack under the action of gravity is avoided when the pressure of the medium is unstable, the pressure and the flow of the medium in a flow passage are influenced, and the balance effect of the load is more obvious when the valve clack is opened. The structure combination of the adjustable limiting plate and the limiting arm enables the maximum opening degree of the valve clack to be controllable. The structure solves the problem of pressure fluctuation in the outlet of a mainoil pump of a lubricating oil system of a nuclear power station or other types of systems, enables the maximum opening degree of the valve clack of the check valve to be arbitrarily adjustable, and simultaneously achieves the indication of the opening degree of the valve clack of the check valve.

Description

technical field [0001] The invention relates to a device for arbitrarily adjustable maximum opening of a check valve flap used in the field of check valves. Background technique [0002] Existing check valves are automatic valves, the disc of which acts automatically under the action of the medium to open, and when the pressure of the medium is not enough to push the disc, the disc closes. Therefore, the valve cannot control the position of the valve disc during operation, which may easily cause the opening of the valve to be unstable, cause large fluctuations in the medium pressure in the flow channel, and affect or even destroy the overall system. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a device with arbitrarily adjustable maximum opening of the disc of the check valve, which can ensure the medium pressure of the flow channel and control the opening of the valve. [0004] A tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K15/03F16K15/18F16K37/00
CPCF16K15/03F16K15/18F16K37/0016
Inventor 尹春雨粟凯龚长龙黄菲王梦梵
Owner SHANGHAI VALVE FACTORY
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