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Vent stop valve

A globe valve, valve body technology, applied in the direction of lift valve, valve device, valve details, etc., can solve the problem of reducing the pressure of the medium and filtering impurities, unable to play the role of partition, unable to improve the service life, etc., to reduce damage and Clogging, reducing damage and clogging, increasing service life

Active Publication Date: 2022-02-11
HEFEI GENERAL MACHINERY RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] When the medium in the vent stop valve flows, the pressure generated is directly exerted on the sealing surface, which cannot act as a barrier, and is likely to cause damage to the sealing surface. The medium is mixed with impurities, which cannot reduce the pressure of the medium and filter impurities. Function, unable to capture impurities in the medium, easy to cause damage and blockage to the sealing surface, and cannot improve the service life

Method used

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Embodiment Construction

[0035] The following is a clear and complete description of the technical solution of the patent of the present invention in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention. In the case of no conflict, the features in the specific implementation manners in this application can be combined with each other.

[0036] see Figure 1 to Figure 6 As shown, the technical solution adopted in this embodiment is:

[0037]The venting stop valve includes a valve body 1, and the inside of the valve body 1 is provided with an inlet cavity 2 and an outlet cavity 3 in sequence from left to right, and a valve seat 4 is fixedly arranged on the valve body 1 between the inlet cavity 2 and the outlet cavi...

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Abstract

The invention provides a venting cut-off valve that can reduce the damage of the sealing surface, reduce the pressure of the medium and filter impurities, can capture the impurities in the medium, reduce the damage and blockage of the sealing surface, and improve the service life. The valve includes a valve body, an inlet cavity and an outlet cavity arranged on the valve body in sequence, a valve seat arranged on the valve body between the inlet cavity and the outlet cavity, and a valve seat arranged on the valve body The valve cover at the upper end, the bracket arranged on the valve cover, the valve stem nut arranged on the bracket, the valve core sleeve provided with a throttling port between the valve seat and the valve cover, The throttling cut-off assembly arranged in the valve core sleeve and the sewage cover arranged at the lower end of the valve body, the throttling cut-off assembly includes a throttle head, a valve flap arranged on the throttle head, The valve stem on the valve disc, and the hand wheel arranged on the valve stem.

Description

technical field [0001] The invention relates to the technical field of valves, in particular to a vent stop valve. Background technique [0002] At present, globe valve, also called cut-off valve, is the most widely used valve. The reason why it is popular is that the friction between the sealing surfaces is small during the opening and closing process, it is relatively durable, the opening height is not large, and it is easy to manufacture. , easy maintenance, not only suitable for medium and low pressure, but also suitable for high pressure. [0003] Vent stop valves are widely used as closed-circuit devices on pipelines of petroleum, natural gas, gas, petroleum liquefied gas, refinery, airport, chemical industry, oil and gas storage and transportation, etc. [0004] When the medium in the vent stop valve flows, the pressure generated is directly exerted on the sealing surface, which cannot act as a barrier, and is likely to cause damage to the sealing surface. The medium...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/00F16K1/32F16K1/36F16K1/42F16K1/52F16K41/04F16K31/60F16K27/02F16F15/02B01D36/04B01D50/00
CPCF16K1/00F16K1/32F16K1/36F16K1/42F16K1/52F16K41/04F16K31/60F16K27/02F16F15/02B01D36/04B01D50/00
Inventor 张建斌王晓钧李妍杨玲玲明友陈凤官
Owner HEFEI GENERAL MACHINERY RES INST
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