A vortex flowmeter with jet bionic vortex generating body

Abstract

The object of the present invention is to provide a vortex flowmeter with a jet bionic vortex generator, comprising a flowmeter body and a vortex generator, the flowmeter body is installed on the pipeline, the vortex generator is arranged in the pipeline, and the vortex generator includes Drainage body, triangular column body, the drainage body is a semi-cylindrical block structure with a V-shaped groove, the V-shaped groove is opened at the front end of the drainage body, the two sides of the V-shaped groove are arc-shaped structures, and the rear end of the drainage body is a plane Structure, the drainage body is provided with a through hole, and the two end faces of the through hole are respectively located on the V-shaped groove and the arc structure. At the rear of the pipe, the concave surface faces away from the incoming flow direction of the pipeline, and a slit is arranged between the triangular columnar body and the drainage body. The invention can reduce the resistance produced by the generator when the liquid flows, and the generated vortex signal is stronger than that of a single generator, the signal-to-noise ratio is high, the pressure loss is small, and the lower flow limit is lower.

Description

technical field [0001] The present invention relates to a flow meter. Background technique [0002] With the development of industry, especially the petrochemical industry, the application of vortex flowmeters is becoming more and more popular. It can accurately measure the flow of fluid and plays an important role in the development of the industry. As a vortex flow meter The vortex generator has an important influence on the accuracy of the vortex flowmeter, but the existing technology cannot meet the measurement requirements very well, which is manifested in: the strength and stability of the shedding vortex of the cylindrical generator The non-circular section with a fixed separation point has a difference in volume, and in different pipelines, it is greatly affected by the flow velocity. The triangular columnar body is too much affected by the design of the apex angle, and the resistance is large. The trapezoidal body has disadvantages The reason is that the structure ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a bionic vortex generator with jet flow that solves the problems of weak vortex signal, low linearity, complex structure, large resistance to fluid, and great influence on fluid flow in the existing vortex flowmeter. body vortex flowmeter

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