A throttle stop valve for natural gas

By setting staggered medium inlet and outlet in the natural gas valve body, combined with the design of cylindrical components and control components, the problems of difficult layout and easy valve damage in the prior art are solved, and medium pressure reduction and long service life of valve are achieved.

CN224339561UActive Publication Date: 2026-06-09CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEMICAL CORP
Filing Date
2025-06-24
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing technology of achieving dual functions by installing throttle valves and shut-off valves in series has the problems of difficult pipeline layout, high cost and easy valve damage. Especially under the flushing of sandy media, the valve life is short and frequent replacement is required.

Method used

A throttling valve for natural gas is designed. The valve body has first and second chambers, each containing first and second cylindrical components. The medium inlet and outlet are staggered, and the medium flows through the valve body in a tortuous path. The pressure is reduced through the pressure reducing holes of the first and second cylindrical components, and the control component slides to block the second pressure reducing hole to achieve the shut-off function, thereby reducing the direct scouring of the valve body by the medium.

Benefits of technology

It effectively reduces medium pressure and flow rate, extends valve life, reduces maintenance frequency and cost, simplifies pipeline layout, and improves the ease of valve use.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224339561U_ABST
    Figure CN224339561U_ABST
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Abstract

The utility model relates to the field of natural gas extraction and transportation, in particular to a throttling stop valve for natural gas, first chamber and second chamber are arranged in the valve body, a first cylindrical part is arranged in the first chamber, the first cylindrical part is provided with a first pressure reducing hole, when medium flows into the first cylindrical part, the medium flows into the first internal space through the first pressure reducing hole, the medium collides with the first cylindrical part in the first cylindrical part to form backflow, the medium in the first cylindrical part internal space collides with the backflow medium to consume energy, thereby reducing the pressure and flow rate of the medium in the first cylindrical part internal space, reducing the scouring of the medium on the valve body and control assembly, a second cylindrical part is arranged in the second chamber, when the medium flows into the second internal space, the medium is discharged through the second pressure reducing hole, the first cylindrical part and the second cylindrical part reduce the direct scouring of the medium on the valve body, prolong the service life of the valve body, and reduce the maintenance cost.
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