Unlock instant, AI-driven research and patent intelligence for your innovation.

Self-checking type sluice valve

A gate valve and valve seat technology, which is applied in the field of self-checking gate valves, can solve the problems of large opening or closing torque of the valve, affecting the sealing effect, and the valve cannot be maintained. Effect

Active Publication Date: 2014-09-17
潘健
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large friction force of the sealing pair and the pressure of the fluid in the valve body, the sealing specific pressure is large, and the opening or closing torque of the valve is large, especially when it is initially opened, resulting in difficulty in opening.
In addition, when the valve is opened, due to the sliding friction between the gate plate and the sealing surface of the valve seat, it is easy to cause wear and leakage, which affects the sealing effect. The valve cannot be maintained and can only be replaced.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Self-checking type sluice valve
  • Self-checking type sluice valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0014] The closing and opening action of the valve in embodiment 2 is the same as that in embodiment 1, and the technical solution added in embodiment 2 relative to embodiment 1 can also realize the following functions: when the sealing surface of gate plate 4 and valve seat 2 leaks due to wear, Abrasives can be injected into the through hole on the valve body 1, and the abrasives enter the leak detection groove 11 through the through hole, the sealing groove and the injection hole 12, so that the abrasives reach the sealing surface between the valve seat 2 and the gate plate 4 During this period, the gate plate 4 is driven to rotate through the gear transmission device 13, thereby grinding the sealing surface of the valve seat 2 and the gate plate 4, so as to realize the maintenance of the valve, and the leakage caused by mild wear can be repaired without replacing the entire valve. When leakage occurs during the operation of the equipment, the sealant can also be injected int...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to the technical field of valves, in particular to a self-checking type sluice valve which comprises a valve body, a valve seat and a damming mechanism. The damming mechanism comprises a cone-shaped convex block, a check block and a valve head. The cone-shaped convex block and the check block are arranged at the lower end of a valve rod in sequence. The valve head is a cavity provided with an opening on a side portion. The interior of the cavity is a space capable of accommodating the cone-shaped convex block and the check block. Stroke spaces are formed on the top and at the bottom of the space accommodating the cone-shaped convex block and the check block, and the cone-shaped convex block and the check block can move up and down in the stroke spaces. Universal joints are arranged on two sides of the valve head. Grooves are formed in the inner side of flashboards, and the universal joints on the valve head extend into the grooves and are connected with the flashboards. The self-checking type sluice valve has the advantages of being reasonable in structure, convenient to use, easy to open and maintainable in sealing pairs.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a self-checking gate valve. Background technique [0002] Gate valves are also called gate valves. There are many types of gate valves, including wedge double gates, wedge single gates, parallel single gates, etc. Among them, wedge double gates are widely used. Traditional wedge double gates The shut-off mechanism in the valve usually includes two gates and a stretching mechanism arranged between the two gates. When closed, the valve stem in the stretching mechanism drives the wedge-shaped block to press the expansion plate close to the two gates, and makes the two gates The sealing surface of the plate and the valve seat form a sealing pair to realize the valve closing. Due to the large friction force of the sealing pair and the pressure of the fluid in the valve body, the sealing specific pressure is large, and the opening or closing torque of the valve is large, especially at ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F16K3/18F16K3/30F16K3/314F16K41/02
Inventor 潘健
Owner 潘健