Precession vortex type flowmeter

By designing flow stabilization and vibration damping components, the problems of metering accuracy drift and weak anti-interference ability of traditional vortex flow meters are solved, and stable flow detection is achieved under different gas and flow velocity conditions.

CN224398728UActive Publication Date: 2026-06-23JIANGSU HUAIAN NINGNENG TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202521950156.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-11
Publication Date
2026-06-23
Estimated Expiration
2035-09-11

AI Technical Summary

Technical Problem

Traditional vortex flow meters suffer from metering accuracy drift, excessive error at low flow rates, decreased accuracy after long-term use, large accuracy fluctuations under different gases, and weak anti-interference ability.

Method used

A flow stabilization component and a vibration damping component were designed. The flow stabilization component stabilizes the airflow through a rectifier plate and an expansion cavity, while the vibration damping component eliminates vibration through a damping spring and a shock-absorbing pad. The flow meter's measurement accuracy is adjusted by combining a bevel gear and a fan blade, and the force-bearing area of ​​the fan blade is adjusted by using a knob to adapt to different flow velocities.

Benefits of technology

This improves the measurement accuracy and anti-interference capability of the flow meter, ensuring stable flow detection under different gas and flow rate conditions, and reducing the impact of errors and vibrations on the measurement.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to the technical field of flow meter devices, and discloses a precession vortex type flow meter which comprises a measuring pipe, flange plates are fixedly connected to the two ends of the measuring pipe, a flow stabilizing assembly is arranged outside the measuring pipe, and a despinner is fixedly connected to the interior of the end, away from the flow stabilizing assembly, of the measuring pipe. A flow guide cover is arranged in the measuring pipe, a first bevel gear is arranged in the flow guide cover, second bevel gears are connected to the four corners of the outer portion of the first bevel gear in a meshed mode, and connecting shafts are fixedly connected to the outer portions of the second bevel gears. According to the utility model, through the cooperation of the knob, the connecting shaft, the bevel gear II and the bevel gear I, when low-flow gas is measured, the flow condition of the gas in a pipeline can be adjusted by adjusting the stressed area of the fan blades, so that the measurement accuracy of the flowmeter is ensured, and the device can be quickly adjusted when different gases are measured through a quick knob adjustment method, so that the measurement accuracy is improved. And the measurement precision is improved.
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