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

Corrugated pipe valve

A bellows and valve technology, applied in lift valves, valve details, valve devices, etc., can solve problems such as inability to use high-pressure media and metal bellows that cannot withstand high-pressure media.

Inactive Publication Date: 2008-02-27
ZHEJIANG JINLONG AUTOMATIC CONTROL EQUIP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the metal bellows of this valve cannot withstand high-pressure media, making this valve unusable for high-pressure media

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
  • Corrugated pipe valve
  • Corrugated pipe valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] As shown in Figure 1, the first embodiment of the bellows valve of the present invention includes a valve stem 1, a valve body 3, and a valve cover 2, wherein a metal bellows 4 is provided between the valve stem 1 and the valve cover 2, and the metal bellows One end of 4 is welded with the valve cover 2, and the other end is welded with the valve stem 1. The cavity between the metal bellows 4 and the valve stem 1 is filled with a balance liquid 5, and the valve stem 1 is fixed with a liquid storage bag 7. The valve stem 1 is provided with a communication hole 8, one end of the communication hole 8 communicates with the liquid storage bag 7, and the other end of the communication hole 8 communicates with the cavity between the metal bellows 4 and the valve stem 1. Its working principle is: when the valve moves from closing to opening, the valve stem 1 moves from bottom to top, and the metal bellows 4 slowly shrinks in the axial direction. When the shrinkage causes the bal...

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 present invention discloses one kind of corrugated tube valve capable of being used fore high pressure medium. The corrugated tube valve includes valve rod, valve body, valve cover and corrugated tube set between the valve rod and the valve cover, balance liquid filled into the cavity between the corrugated tube and the valve rod, and liquid storing bag fixed onto the valve rod. The valve rod has through hole with one end communicated with the liquid storing bag and the other end communicated with the cavity between the corrugated tube and the valve rod.

Description

technical field [0001] The invention relates to a bellows valve. Background technique [0002] At present, valves widely used in chemical, pharmaceutical, petroleum and other industries often experience water leakage and air leakage. The main reason is that the current valve uses different packings for sealing. The packing hugs the valve stem tightly. When the valve stem is started, the valve stem and the packing generate friction and heat. Over time, the sealing surface between the valve stem and the packing is damaged, resulting in water leakage. Another reason for the occurrence of air leakage is that the medium in the valve is generally corrosive. The valve stem is immersed in the medium for a long time to cause corrosion and scaling, which damages the sealing surface between the valve stem and the packing, resulting in water leakage and air leakage. phenomenon occurs. Aiming at this shortcoming, there are valves with bellows sealing structure. For example, Chinese uti...

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): F16K41/10F16K1/02
Inventor 余金权
Owner ZHEJIANG JINLONG AUTOMATIC CONTROL EQUIP