Multi-stage pressure and noise reduction axial flow type regulating valve

By designing an axially symmetrical runner and multi-layer orifice plate superposition structure in a multi-stage buck control valve, the problems of noise control and flow performance of existing control valves under high pressure differential conditions are solved, and higher flow capacity and noise reduction effect are achieved.

CN222760401UActive Publication Date: 2025-04-15SUZHOU DELAN ENERGY TECH
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Patent Information

Application Number
CN202421646212.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-12
Publication Date
2025-04-15
Estimated Expiration
2034-07-12

AI Technical Summary

Technical Problem

In the harsh working conditions of high pressure difference, existing multi-stage step-down regulating valves are difficult to effectively control noise, and are prone to unnecessary changes in indirect flow and flow direction, which affects the performance of the valve.

Method used

A multi-stage pressure reduction noise reduction axial flow regulating valve is designed. By setting an inlet guide seat and an outlet guide seat inside the valve body, using an axial symmetrical flow channel, combining the gear valve stem and gear sleeve transmission, multi-layer orifice plate superposition design for multi-stage pressure reduction.

Benefits of technology

It effectively avoids unnecessary changes in indirect flow and flow direction, maximizes flow capacity, reduces the generation of turbulence and noise, is suitable for harsh working conditions with high pressure difference, and improves the valve performance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222760401U_ABST
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Abstract

The utility model discloses a multi-stage pressure and noise reduction axial flow type regulating valve which comprises a valve body. A fixed shaft is mounted at the bottom of the valve body through a fastener; an inlet guide seat is arranged on one side in the valve body; a gear sleeve is arranged on one side of the inlet guide seat; a gear valve rod matched with the gear sleeve is arranged at the upper part of the valve body; a first valve core and a second valve core are arranged in the gear sleeve; a pore plate sleeve is arranged on one side of the second valve element; a first pore plate, a second pore plate and a third pore plate are arranged in the pore plate sleeve; an outlet guide seat is arranged on the other side in the valve body; the axial symmetrical flow channels are adopted, indirect flow and unnecessary change of the flow direction are completely avoided, the flow capacity on the unit diameter is improved to the maximum extent, and turbulent flow and noise are greatly reduced; the three layers of pore plates are stacked for multi-stage pressure reduction, so that the valve can reduce the damage caused by cavitation erosion and can be used for severe working conditions with high pressure difference; the requirements of customers are met, and the market competitiveness of enterprises is improved.
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