Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Quick-opening slow-closing water hammer relief valve

A discharge valve and water hammer technology, applied to valve details, safety valves, balance valves, etc., can solve problems such as pipeline network damage, and achieve the effect of avoiding secondary water hammer and simple and compact structure

Inactive Publication Date: 2012-11-28
WUHAN DAYU VALVE
View PDF8 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The rapid opening and closing of the above-mentioned valves causes a secondary instantaneous high pressure in the pipeline network; this secondary instantaneous high pressure is formed due to the excessive closing speed of the relief valve, which also has a certain destructive effect on the pipeline network

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
  • Quick-opening slow-closing water hammer relief valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The opening of the sleeve 11 is in the valve body 1 , and the opening section of the inner hole 16 of the sleeve 11 is connected with the sleeve 5 .

[0019] The connection contact surface between the shaft sleeve 5 and the inner hole 16 of the sleeve 11 is sealed, and the sealing structure may be a sealing ring or a sealing structure of a sealing ring.

[0020] The valve stem 14 passes through the shaft sleeve 5 and extends into the inner hole 16 of the sleeve 11. A sealing structure is provided between the contact surface of the valve stem 14 and the shaft sleeve 5. For example, a sealing groove is provided on the inner hole wall of the shaft sleeve 5. A sealing ring is arranged in the sealing groove.

[0021] The inner wall of the valve cover 8 is connected with a guide sleeve 7, and the guide sleeve 7 is provided with a pressure plate 6, and the pre-tension spring 4 is arranged between the valve disc 3 and the pressure plate 6; the pressure plate 6 is in contact wit...

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 discloses a quick-opening slow-closing water hammer relief valve. The quick-opening slow-closing water hammer relief valve comprises a valve body and a sleeve, wherein the valve body is connected with a valve cover; a valve seat is arranged on a flow channel in the valve body; an opening-closing valve clack which can be sealed with the valve seat is arranged in the valve body; the valve clack is connected with a valve rod; the sleeve of which one end is open penetrates out of the valve cover and is fixedly connected with the valve cover; the valve rod movably extends into the sleeve; the side wall of the valve rod is sealed with the wall of an inner hole of the sleeve; the wall of the sleeve is connected with a drive media pipeline; the drive media pipeline is communicated with the inner hole of the sleeve; the other end of the pipeline is connected with a communication container; and the pipeline is connected with a one-way throttling valve. By using the water hammer relief valve, a water hammer can be opened and eliminated quickly and can be closed slowly at the same time, so that a secondary water hammer generated because of closing the valve too fast is avoided. The quick-opening slow-closing water hammer relief valve has a simple and compact structure.

Description

technical field [0001] The invention belongs to pipeline valve technology, in particular to a pressure safety relief valve for protecting network pipes. Background technique [0002] The pipeline relief valve is a valve that protects the pressure safety of the network pipe. When the pressure of the pipeline exceeds the set pressure, the valve opens to release the water pressure to protect the pipeline. At present, the relief valves manufactured in China are all direct-acting quick-opening and quick-closing or pilot-operated relief valves. That is, when the pipeline has a water hammer high-pressure wave, the direct-acting quick-opening and quick-closing type can sense the pipeline pressure to open quickly (but the pilot-operated opening time is relatively slow), but when the pipeline pressure returns to below the set pressure value, it will release The valve will close quickly. The rapid opening and closing of the above-mentioned valves causes a secondary instantaneous hig...

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 Applications(China)
IPC IPC(8): F16K17/10F16K47/02
Inventor 李习洪周超
Owner WUHAN DAYU VALVE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com