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

Valve element and valve rod combined structure of high-temperature and high-pressure corrosion-resistant diaphragm stop valve

A high-temperature, high-pressure, combined structure technology, applied in the direction of valve lifts, valve devices, engine components, etc., can solve the problems of reduced wear resistance, impact on valve life and service cycle, and achieve the effect of improving service performance and life cycle

Inactive Publication Date: 2015-03-25
JIANGSU XINGHE VALVE +1
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because it has the function of high temperature and high pressure corrosion resistance, and the wear resistance of the moving parts of the valve is reduced under the high temperature and high pressure operation state, which directly affects the life and service cycle of the valve.

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
  • Valve element and valve rod combined structure of high-temperature and high-pressure corrosion-resistant diaphragm stop valve
  • Valve element and valve rod combined structure of high-temperature and high-pressure corrosion-resistant diaphragm stop valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0015] 1. A combination structure of valve core and valve stem of high temperature and high pressure corrosion resistant diaphragm globe valve, consisting of valve body (1), valve core (2), valve seat (5), valve stem (3), metal diaphragm (4) , flange (8), gasket (9), bonnet (7), packing (10), switch nut (13), etc., characterized in that one end of the valve stem (3) is threaded into the valve core (2) The inner fit is integrated, the flange (8) cooperates with the oblate middle part of the valve stem (3) to prevent the valve stem (3) from rotating, one end of the metal diaphragm (4) is welded and sealed with the valve core (2), and the other end is welded to the flange (8) Weld and seal to form a diaphragm assembly; place the diaphragm assembly inside the valve seat (5), and one end of the flange (8) passes through the upper end surface of the valve sea...

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 aims to provide a valve element and valve rod combined structure of a high-temperature and high-pressure corrosion-resistant diaphragm stop valve. The combined structure is composed of a metal diaphragm, a valve rod, a valve element and a flange in a welded mode, the valve element is made of a high-strength corrosion-resistant material, the valve rod and a switch nut matched with the valve rod are combined through a corrosion-resistant material, the zero-leakage and high-reliability valve with a screen open part capable of being sealed through pressurization can be obtained, the problem that the abrasion resistance of related movement parts of the valve is reduced in high-temperature and high-pressure running state is satisfactorily solved, and the service life and the service cycle of the valve are greatly prolonged.

Description

technical field [0001] The invention relates to the design and manufacture of valves, which are widely used in the opening and closing and control devices of poisonous, radioactive, inflammable and explosive and other harmful media in industrial pipelines and other pipelines. Background technique [0002] The structure of the high temperature and high pressure corrosion resistant diaphragm globe valve is a valve with metal diaphragm and valve stem or valve core and flange, which realizes pressure screen opening and sealing, zero leakage and high reliability through welding. Because it has the function of high temperature and high pressure corrosion resistance, and the wear resistance of the relevant moving parts of the valve decreases under the high temperature and high pressure operating state, which directly affects the life and service cycle of the valve. Since the medium used is completely isolated from the lower part of the valve core by the metal diaphragm screen and t...

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
IPC IPC(8): F16K1/48F16K1/32F16K1/50
CPCF16K1/48F16K1/32F16K1/50
Inventor 朱义芳
Owner JIANGSU XINGHE VALVE