Stop valve

A technology of stop valve and bonnet, which is applied in the field of stop valve, can solve the problems of impact, service life reduction of pipe body and stop valve, etc., and achieve the effect of improving the effective service life

Pending Publication Date: 2022-07-29
HAIAN GASOLINEEUM SCI RES INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the field of oil exploration and transportation, it is usually necessary to use various valves to control the pipeline, among which the stop valve is a valve used to quickly control the flow and interruption. The stop valve realizes the cut-off of the flowing liquid by setting a cut-off structure between the inlet and outlet effect, while the liquid has momentum in the flow process, it is directly blocked by the stop valve, so that the momentum of the liquid at the inlet directly impacts the flow pipe and the valve body, resulting in the problem that the service life of the pipe body and the stop valve is reduced

Method used

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Embodiment Construction

[0024] Combine below Figure 1-5 The present invention is described in detail, wherein, for the convenience of description, the orientations mentioned below are now defined as follows: figure 1 The projection relationship of itself is the same as the up, down, left, right, front, and rear directions.

[0025] combined with Figure 1-5 Said kind of stop valve includes a valve cover part 12, a valve pipe part 11 is installed on the lower side of the valve cover part 12, and the valve pipe part 11 includes a communication valve pipe 18, and the communication valve pipe 18 is provided with a valve pipe part 11. Input cavity 19, an output cavity 20 is arranged in the communication valve tube 18, a cut-off function cavity 21 is arranged between the input cavity 19 and the output cavity 20, and a cut-off function cavity 21 can be lifted and slidably installed in the cut-off function cavity 21. Plug 24, the cut-off plug 24 is installed with an elastic wrapping portion 23, the elasti...

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Abstract

The invention relates to the related technical field of valves, and discloses a stop valve which comprises a valve cover part, a valve pipe part is installed on the lower side of the valve cover part, the valve pipe part comprises a communicating valve pipe, an input cavity is formed in the communicating valve pipe, an output cavity is formed in the communicating valve pipe, and a stop function cavity is formed between the input cavity and the output cavity. A cut-off plug is mounted in the cut-off function cavity in a lifting and sliding manner, and an elastic wrapping part is mounted on the cut-off plug; according to the stop valve disclosed by the invention, the stop buffer function is set, and the elastic wrapping part structure is arranged on the upper side of the stop plug, so that a surrounding effect can be formed on the valve rod of the transmission connection structure of the stop plug; therefore, the valve rod is prevented from being corroded and impacted after being placed in the cut-off function cavity for a long time to affect transmission, and the effective service life of the valve is prolonged.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a shut-off valve. Background technique [0002] In the field of oil exploration and transportation, various valves are usually used to control the pipeline. The globe valve is a valve used to quickly control the circulation and interruption. The globe valve is provided with a block structure between the inlet and the outlet to realize the cut-off of the liquid in flow. However, the liquid has momentum in the flow process, and the stop valve is directly intercepted and blocked, so that the momentum of the liquid at the inlet end directly impacts the circulation pipeline and the valve body, thus causing the problem of reducing the service life of the pipe body and the stop valve. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a shut-off valve for overcoming the above-mentioned defects in the prior art. [0004] The present invention is achiev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K1/36F16K1/32F16K47/02
CPCF16K1/36F16K1/32F16K47/023
Inventor 于文清
Owner HAIAN GASOLINEEUM SCI RES INSTR
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