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Switching-on and switching-off method for pipeline check valve and gate valve combination

A gate valve and check valve technology, applied in the field of pipeline valve maintenance, can solve the problems of replacing the valve body, inability to perform online maintenance, and costing a lot of valve maintenance, and achieve the effect of convenient update

Inactive Publication Date: 2018-10-12
王梓骥
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The replacement cycle of traditionally used valves is generally 1 to 3 years. After the valve is put into operation, maintenance and replacement will cost a lot of money, and there are problems such as inability to perform online maintenance, replacement of valve body and valve core

Method used

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  • Switching-on and switching-off method for pipeline check valve and gate valve combination
  • Switching-on and switching-off method for pipeline check valve and gate valve combination
  • Switching-on and switching-off method for pipeline check valve and gate valve combination

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Experimental program
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Embodiment Construction

[0025] The opening and closing method of the pipeline check valve and the gate valve assembly of the present invention is realized in this way, the pipeline check valve, the gate valve assembly includes: the check valve and the check valve assembly, the gate valve and the valve assembly. When the gate valve assembly is set on the pipeline in a combination of coaxial, cross, concentric, vertical, opposite, symmetrical, independent and rotating valve cores, the opening and closing methods of the pipeline check valve and the gate valve assembly are described below in conjunction with the attached Figure for specific description.

[0026] Pipeline check valve and check valve assembly, gate valve and gate valve assembly are composed of: medium 1, medium inlet pipe 2, valve body Ⅰ 3, medium outlet pipe 4, valve core valve stem Ⅰ 5, valve core Valve stem II 6, fastening bolt 7, valve core I 8, valve core II 9 and valve body II 10, medium inlet pipe 2 and medium outlet pipe 4 are arra...

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Abstract

The invention relates to a switching-on and switching-off method for a pipeline check valve and gate valve combination. The switching-on and switching-off method is characterized in that a check valveand a gate valve are arranged to be combined with valve elements in a coaxial or crossing or concentric or perpendicular or face-to-face or symmetrical or independent or rotary manner on a pipeline;and the check valve and gate valve combination is composed of a medium, a medium inlet pipeline, a valve body I, a medium outlet pipeline, a valve element valve rod I, a valve element valve rod II, fastening bolts, the valve element I, the valve element II and a valve body II. The switching-on and switching-off method capable of achieving multiple pipeline valve combination forms has the advantages that the structure is simple, operation is flexible to conduct, and maintenance and replacement are convenient to conduct. The problems of on-line maintenance, valve body and valve element replacement and the like are solved under the precondition that flowing of the medium of the power pipeline is not affected. Effective paths for on-line valve and valve element replacement are enriched.

Description

technical field [0001] The invention belongs to the technical field of pipeline valve maintenance, and relates to an on-line production, maintenance or replacement of a valve core through the opening and closing of a pipeline check valve and gate valve assembly without affecting the medium flow of a power pipeline, especially The invention relates to a method for opening and closing a combination of a pipeline check valve and a gate valve. Background technique [0002] At present, gate valves, check valves, ball valves, cylindrical valves, etc. Ubiquitous: In the flow of power pipelines with medium, there are opening and closing devices such as gate valves, check valves, and cylindrical valves. The main function of these devices is to ensure the required production, life, maintenance, flow control, and ensure the normal operation of various processes. However, when the opening and closing devices such as gate valves, check valves, and cylindrical valves in various pipeline...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K43/00
Inventor 王梓骥王喜伟
Owner 王梓骥
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