A multifunctional valve

By designing a multi-functional valve that combines throttling, pressure reduction, and check valve functions, the problem of easy valve damage in high-pressure differential pipelines has been solved, improving the reliability and safety of the pipeline and reducing production costs.

CN115614487BActive Publication Date: 2026-07-17CRETE GRP CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
CRETE GRP CO LTD
Filing Date
2022-10-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing high-pressure differential pipelines, valves are prone to damage and leakage, resulting in high equipment safety risks, difficult maintenance, high production costs, and limited functionality and low control precision.

Method used

Design a multifunctional valve comprising a first flow channel, a second flow channel, and a connecting flow channel, and internally equipped with first and second valve core assemblies. The valve core assembly includes a valve stem and a valve disc. The valve disc has a conical structure and a connecting hole, enabling it to achieve throttling, pressure reduction, and check flow functions, thereby reducing the number of valves required.

Benefits of technology

It improves the operational reliability of high pressure differential pipelines, reduces valve leakage and damage, lowers safety risks and maintenance difficulty, saves production costs, and enhances the safety and control accuracy of fluid transmission.

โœฆ Generated by Eureka AI based on patent content.

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    Figure CN115614487B_ABST
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Abstract

The application discloses a multifunctional valve, which comprises a valve body, a first flow channel, a second flow channel and a communication flow channel in the valve body, the first flow channel is connected with the second flow channel through the communication flow channel, a first valve core assembly is arranged in the first flow channel, and a second valve core assembly is arranged in the second flow channel. A valve stem can drive a valve flap to slide in the first flow channel, so as to adjust the fluid passing area of the first flow channel; the fluid in a pressure difference pipeline can enter the valve body through a fluid port; when the fluid enters the first flow channel through the fluid port, the fluid is throttled and depressurized for the first time, then enters the second flow channel through the communication flow channel, is throttled and depressurized for the second time, and then enters the second flow channel, so that the fluid is throttled and depressurized for the third time, and thus the serious scouring and cavitation phenomenon of the valve caused by the high-pressure-difference fluid can be effectively relieved. The valve flap is slidably connected with the valve stem, a communication hole is arranged on the valve flap, the fluid can enter the space between the valve flap and the valve stem through the communication hole, so that the reverse flow of the fluid in the valve body is prevented, and the check function is realized.
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