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Stop valve

A globe valve and valve body technology, applied in the globe valve field, can solve the problems of low cost, high cost and high processing requirements

Inactive Publication Date: 2013-07-31
LUZHOU NORTH CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the disadvantages of high processing requirements and high cost of the current cut-off valve with flexible cut-off method, the technical problem to be solved by the present invention is to provide a cut-off valve with lower cost

Method used

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  • Stop valve
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Experimental program
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Embodiment

[0041] Such as figure 1 , figure 2 with Figure 4 As shown, the explosion-proof flexible cloth bag valve made by the present invention. The explosion-proof flexible cloth bag valve includes a valve body 5 and a pair of "concave" and "convex" flexible clamping heads 4 and 7 made of static conductive rubber. The valve body 5 includes a flange portion 52 and a connection to the frame 10. In the fixed part 51, the "concave" flexible clamping head 4 is connected to the cylinder 3, and the "convex" flexible clamping head 7 is fixed on the copper base plate 6 set on the fixed part 51, and the passing cylinder 2 uses static conductive canvas It is produced and connected with the flange part 52. The passing cylinder 2 is located between the two flexible clamping heads 4 and 7. The static electricity generated by the friction of the material during the valve closing process can be released by the static conductive material in time, which is safe.

[0042] The action principle of the explo...

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Abstract

The invention discloses a valve with low operating cost, which utilizes open type structural design and comprises a valve body and an opening adjusting mechanism, wherein the opening adjusting mechanism comprises a pair of flexible clamping heads extending oppositely. The flexible clamping heads are provided with concave-convex matching structures, and a material passing barrel is connected onto the valve body and located between two flexible clamping heads. A sealing surface with multiple faces can be formed when the flexible clamping heads clamp the material passing barrel to enable the valve to be stopped. The adjustment of the opening of the valve is achieved through the change of extensible stroke. The stop valve is simple in structure, good in anti-leakage effect, high in substantial safety, low in operating cost, favorable for reducing damage rate in granule conveying process, suitable for application to system for conveying powder, granule and materials containing particles, capable of achieving unmanned operation and automatic control, and achieving an anti-explosion function through utilizing static conductive materials to manufacture components of the valve and especially suitable for the fire chemical field.

Description

Technical field [0001] The invention relates to a cut-off valve, which is used for opening and closing the conveying of powder, granular, energy-containing powder and granular material, in particular to a valve adopting a flexible cut-off mode. Background technique [0002] At present, the opening and closing of the pipeline transportation of powder, granular and energetic granular materials in cremation plants generally use flapper valves, heavy hammer valves, etc. These valves cut off the material transportation using a hard cut-off method, which is realized by manual or pneumatic operation. During the opening and closing process of the valve, there may be phenomena such as the accumulation of static electricity caused by the friction between the insert plate and the material, or the insert plate is blocked by the material, which may lead to the risk of combustion and explosion accidents. The operating environment is poor. serious. [0003] Recently, valves with flexible shut-of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K7/04F16K27/00F16K31/12
Inventor 熊安国
Owner LUZHOU NORTH CHEM IND