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A turbine butterfly valve and its worm positioning and locking device

A technology of positioning and locking, butterfly valve, applied in the direction of valve device, valve operation/release device, lift valve, etc., can solve the problems of water flow change in the pipeline, affecting the stability of the pipeline system, etc., to achieve high versatility. Effect

Active Publication Date: 2018-11-23
XUCHANG XUJI JINGRUI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the turbine butterfly valve will cause the worm of the turbine butterfly valve to rotate due to vibration or misoperation by non-professionals, which will cause changes in the water flow in the pipeline and affect the stability of the pipeline system.

Method used

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  • A turbine butterfly valve and its worm positioning and locking device
  • A turbine butterfly valve and its worm positioning and locking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Embodiments of the turbine butterfly valve of the present invention: as figure 1 , figure 2 As shown, the valve seat 1 is included, and the valve seat 1 is installed with a worm 5 whose axis extends along the front and rear directions. The worm positioning and locking device includes a bushing 8 sleeved on the worm 5, and the outer peripheral surface of the bushing 8 is integrally provided with a locking wheel 6, and a spring pin 7 is radially inserted between the bushing 8 and the worm 5, so that The positioning of the shaft sleeve 8 and the locking wheel 6 can be realized. The locking wheel 6 is fixedly provided with a locking arm, the locking arm is composed of a locking body 3 and a locking plate 2, the locking body 3 is a U-shaped structure clamped on the upper part of the locking wheel, and its front side There are two locking screws 4 screwed into the groove wall, relying on the locking screws 4, the rear groove wall of the locking body 3 can be pressed agains...

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Abstract

The invention discloses a turbine butterfly valve and a positioning and locking device for a worm of the turbine butterfly valve. The device comprises a shaft sleeve, wherein the axis of the shaft sleeve extends front and back, and the shaft sleeve is used for positioning and nested on the worm of the turbine butterfly valve; a locking arm is fixedly arranged on the shaft sleeve and comprises a locking body; and a locking plate which extends backwards and is in force fit with the upper surface of a valve seat of the turbine butterfly valve so as to stop the rotation of the worm of the turbine butterfly valve is fixedly arranged on the locking body. The device can prevent the rotation of the worm due to vibration or misoperation of a layman and has the advantages of simple structure and convenience in installation.

Description

technical field [0001] The invention relates to a turbine butterfly valve and a worm screw positioning and locking device thereof. Background technique [0002] In the water-water cooling system used in the power industry, such as the cooling pipeline system of the diverter valve, the system has very strict requirements on the stability of the cooling water flow in the pipeline, and the flow of cooling water is controlled by the pipeline. The vortex butterfly valve is controlled, so the turbine butterfly valve must have high stability. However, the turbine butterfly valve will cause the worm of the turbine butterfly valve to rotate due to vibration or misoperation by non-professionals, which will cause changes in the water flow in the pipeline and affect the stability of the pipeline system. Contents of the invention [0003] The object of the present invention is to provide a positioning and locking device for realizing the positioning and locking of the worm of a turbo ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/22F16K1/32F16K31/53
CPCF16K1/221F16K1/32F16K31/53
Inventor 姚为正张建景兆杰郑解良马天义王强袁大光于林科
Owner XUCHANG XUJI JINGRUI TECH
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