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Plug-in type high-pressure plate valve

A flat valve, plug-in technology, applied in sliding valves, valve devices, engine components, etc., can solve the problems of troublesome, labor-intensive, and time-consuming maintenance methods, and achieve the effect of long maintenance-free period and convenient and fast maintenance.

Inactive Publication Date: 2011-08-17
YANCHENG SANYI PETROCHEM MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This maintenance method is quite troublesome, labor-intensive and time-consuming.

Method used

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  • Plug-in type high-pressure plate valve
  • Plug-in type high-pressure plate valve
  • Plug-in type high-pressure plate valve

Examples

Experimental program
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Effect test

Embodiment Construction

[0010] as attached figure 1 , 2 As shown, two wave springs 4 are arranged on the contact surface between the valve body 7 and the valve seat 8 and the orientation of the two wave springs 4 is that the openings face each other. as attached figure 1 , 3 As shown, the lower ends of the planes on both sides of the gate 6 are designed as symmetrical slopes.

[0011] When the present invention is working, turning the hand wheel 1 clockwise drives the valve stem 3 to make the valve stem nut 2 move downward in a straight line along the axis of the valve stem 3, and the valve stem nut 2 presses the gate plate 6 to move downward, so that the valve stem 6 moves downward. The solid planes on both sides are engaged with the sealing surfaces of the left and right valve seats 8 under the lateral elastic force of the left and right wave springs 4 to achieve closure. Since the left and right valve seats 8 and the valve body 7 are in a gap floating fit and are provided with two lip-shaped s...

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Abstract

The invention relates to a plug-in type high-pressure plate valve, which belongs to the field of manufacturing of petroleum equipment machinery. The valve comprises a valve body, a valve seat, a valve rod, a valve rod nut, a gate plate, a corrugated spring, lip-type sealing rings, a guide plate, a hand wheel and the like, and is characterized in that: slope surfaces are arranged at the lower ends of the flat surfaces on the two sides of the gate plate; the slope surfaces are symmetrical slope surfaces; the shortest distance between the symmetrical slope surfaces is less than the distance between the two parallel surfaces of the valve seat in the natural state; the corrugated spring is arranged between the valve seat and the valve body; and the two opposite circular lip-type sealing rings are arranged between the valve seat and the valve body. The valve has the advantages of long maintenance cycle, labor saving, time saving and the like and can be conveniently and quickly maintained.

Description

technical field [0001] The invention relates to a plug-in high-pressure flat valve, which is widely used in the fluid control of drilling and oil production pipelines, and belongs to the field of petroleum equipment machinery manufacturing. Background technique [0002] In the process of drilling and oil production, the plate valve is a common and necessary control valve in the pipeline fluid. Due to the unilateral hydraulic force of the gate in the traditional high-pressure slab valve when it is closed, there is a large positive pressure between the other side of the gate and the sealing surface of the valve seat, and this positive pressure causes the valve plate to The friction between the sealing surface on one side of the valve seat and the sealing surface of the valve seat increases during opening and closing, which intensifies the wear between the sealing surfaces. In addition, the opening and closing action of the flat valve in use is extremely complicated, so it is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K3/18F16K3/314F16K3/30
Inventor 刘华刘学高赵永春王荣兵
Owner YANCHENG SANYI PETROCHEM MACHINERY
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