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Vortex shedding flowmeter

A vortex flowmeter and vortex flow technology, which is applied in the field of flowmeters, can solve problems affecting the accuracy of detection data, and achieve the effects of convenient separation, convenient operation, and guaranteed accuracy

Pending Publication Date: 2020-09-08
ZHEJIANG AOXIN INSTR
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The vortex generating body of the existing vortex flowmeter is fixedly installed in the measuring tube, because the medium fluid will vibrate with the measuring tube wall during the high-speed flow process, and the impact of the medium fluid on the vortex generating body Vibration causes the detection probe located in the measuring tube to be affected by double vibrations, which will cause measurement errors and ultimately affect the accuracy of the detection data

Method used

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0028] refer to Figure 1 to Figure 5 , a vortex flowmeter, including a measuring tube 2 with a flow channel 1, the measuring tube 2 includes a main body 201 with a flow channel 1, a notch groove 202 opened in the main body 201 and communicating with the outside world and the flow channel 1, and The rotating part 203 is provided in the notch 202 and has the flow channel 1 . The shape of the rotating part 203 matches the shape of the notch 202 . A connecting rod 3 is fixedly installed on the main body 201 , a vortex flow converter 4 is fixedly installed on the connecting rod 3 , and a detection probe 5 extending into the flow channel 1 is installed in the main body 201 .

[0029] The wall of the flow channel 1 of the rotating part 203 is provided with an annular main installation groove 6 surrounding the center of the flow channel 1. The main installation gro...

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Abstract

The invention discloses a vortex shedding flowmeter which comprises a measuring pipe with a flow channel, a connecting rod arranged on the measuring pipe and a vortex street flow converter arranged onthe connecting rod. A detection probe extending into the flow channel is mounted in the measuring pipe; a main installation groove is formed in a wall of the flow channel, an annular vibration reduction rubber ring is arranged in the main installation groove, an annular first installation groove is formed in the inner circumferential wall of the vibration reduction rubber ring, a vortex generatoris arranged in the first installation groove, and an adjusting assembly used for adjusting the vibration reduction grade of the vibration reduction rubber ring is arranged on the vibration reductionrubber ring. The vortex shedding flowmeter can be used for preventing vibration, and therefore accuracy of detection data is ensured.

Description

technical field [0001] The invention relates to the field of flowmeters, in particular to a vortex flowmeter. Background technique [0002] The vortex flowmeter is a volume flowmeter that measures the volume flow of gas, steam or liquid, the volume flow of the standard condition or the mass flow based on the research and production of the Karman vortex street principle. It is mainly used for the flow measurement of the medium fluid in the industrial pipeline, such as gas, Various media such as liquid and steam are characterized by small pressure loss, large measuring range and high precision, and are hardly affected by parameters such as fluid density, pressure, temperature and viscosity when measuring volume flow in working conditions. [0003] The vortex generating body of the existing vortex flowmeter is fixedly installed in the measuring tube, because the medium fluid will vibrate with the measuring tube wall during the high-speed flow process, and the impact of the medi...

Claims

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Application Information

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IPC IPC(8): G01F1/32
CPCG01F1/32
Inventor 范叔卫范叔晋张廷陈通照范叔慈白帆
Owner ZHEJIANG AOXIN INSTR
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