High-precision liquid measurable type vortex flowmeter

Abstract

The invention discloses a high-precision liquid measurable type vortex flowmeter which comprises a measuring tube meter body, a vortex generator, a vortex eliminating device, a vortex detection sensor and a flow totalizer, wherein an inner cavity of the measuring tube meter body is of a three-section structure, the inlet part of the measuring tube meter body is a necking-down section, the middle of the measuring tube meter body is a straight tube section, the outlet part of the measuring tube meter body is an expanding section, the vortex generator is mounted in the necking-down section, a radial through hole is formed at the rear 1 / 3 part of the straight pipe section, the vortex detection sensor is mounted in the through hole, the vortex eliminating device is mounted on the tail portion of the expanding section, a supporting cylinder is mounted above the measuring tube meter body and covers the vortex detection sensor, the flow totalizer is mounted on the top of the supporting cylinder, and the vortex detection sensor is electrically connected with the flow totalizer. The high-precision liquid measurable type vortex flowmeter is novel in design, simple in structure, small in total number of parts, low in manufacturing cost, resistant to corrosion and abrasion, small in operating pressure loss, and capable of saving operating energy consumption.

Description

technical field [0001] The invention relates to the technical field of industrial flowmeters, in particular to a high-precision measurable liquid vortex flowmeter. Background technique [0002] At present, industrial metering liquid flowmeters are mainly volumetric flowmeters and velocity flowmeters. Volumetric flowmeters generally have rotating rotors. The structure of the flowmeter is complex and there are many parts. The flowmeter range is not wide, and the cleanliness of the metering medium is particularly high. If the medium contains particles, the rotor is easily stuck; the speed flowmeter is generally a turbine flowmeter and a vortex flowmeter. The turbine flowmeter has a complex structure and has a rotating The turbine rotor has high requirements on the machining accuracy of the parts. Although the general vortex flowmeter has a simple structure, it has high requirements for the installation of the front and rear straight pipe sections, and it is difficult to ach...

AI Technical Summary

Problems solved by technology

[0002] At present, industrial metering liquid flowmeters are mainly volumetric flowmeters and velocity flowmeters. Volumetric flowmeters generally have rotating rotors. The structure of the flowmeter is complex and there are many parts. The flowmeter range is not wide, and the cleanliness of the metering medium is particularly high. If the medium contains particles, the rotor is easily stuck; the speed flowmeter is generally a turbine flowmeter and a vortex flowmeter. The turbine flowmeter has a complex structure and has a rotating The turbine rotor has high requirements on the processing accuracy of parts. Although the general vortex flowmeter has a simple structure, it has high requirements for the installation of the front and rear straight pipe sections, and it is difficult to achieve the accuracy of grade 1 or above.

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