A dual turbine flowmeter

By setting up a detection channel and a return channel inside the turbine flow meter, and using the guide slope to decompose the axial impact force, combined with the V-shaped sealing lip and fixing components, the problem of sealing ring displacement under high pressure fluid is solved, achieving more reliable sealing and stable connection, and improving detection accuracy.

CN122408898APending Publication Date: 2026-07-17JIANGSU AEROSPACE MEASUREMENT & CONTROL TECHNOLOGY CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGSU AEROSPACE MEASUREMENT & CONTROL TECHNOLOGY CO LTD
Filing Date
2026-05-15
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In high-pressure fluid transport environments, the sealing rings at the connection points of existing turbine flow meters are prone to displacement or deformation, leading to sealing failure and fluid leakage, which affects the test results.

Method used

A detection channel is set inside the flow meter, and a first sealing step, a second sealing step and a return channel are adopted. The axial impact force is decomposed into radial internal and external components by using the guide slope, which drives the sealing ring to deform to ensure sealing. A stable connection is achieved by combining the V-shaped sealing lip and the fixing component.

Benefits of technology

In high-pressure fluid environments, the sealing effect is more reliable, avoiding seal failure and improving the flow meter's detection accuracy and ease of operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122408898A_ABST
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Abstract

The present application belongs to the technical field of turbine flowmeter, and discloses a double turbine flowmeter, which comprises a flowmeter, a detection flow channel is arranged in the flowmeter; a first sealing step and a second sealing step are arranged in the detection flow channel, and a backflow channel is communicated between the first sealing step and the second sealing step; a quick connecting assembly is used for mounting the flowmeter to a pipeline; the quick connecting assembly comprises a fixing assembly and a sealing ring which is sealed between the outer wall of the pipeline and the inner wall of the detection flow channel, the fixing assembly is configured to make the pipeline and the sealing ring abut to the first sealing step and the second sealing step respectively; the sealing ring comprises a first sealing ring and a second sealing ring which are mutually abutted along the axial direction through guide inclined surfaces, when fluid impacts the sealing ring axially through the backflow channel, part of the axial impact force is decomposed into a radial inner component force acting on the first sealing ring and a radial outer component force acting on the second sealing ring through the guide inclined surfaces.
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