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Pitot tube capable of conveniently adjusting angle in pipeline and flow velocity measurement method thereof

A technology of adjusting angle and pitot tube, applied in the direction of velocity/acceleration/impact measurement, fluid velocity measurement, measurement device, etc., which can solve the problems of multiple seal installation and adjustment, multiple disassembly and assembly, etc.

Pending Publication Date: 2021-08-20
708TH RES INST OF CSSC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when using the assembled small-sized Pitot tube at present, it needs to be disassembled and assembled many times, and there is no suitable way to fix it conveniently, which also brings problems of multiple sealing and installation adjustments

Method used

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  • Pitot tube capable of conveniently adjusting angle in pipeline and flow velocity measurement method thereof
  • Pitot tube capable of conveniently adjusting angle in pipeline and flow velocity measurement method thereof
  • Pitot tube capable of conveniently adjusting angle in pipeline and flow velocity measurement method thereof

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Embodiment Construction

[0027] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0028] The device provided by the present invention is a needle-type Pitot tube device which is integrated and distributed in the pipeline and can conveniently adjust the rotation angle, including the pipeline 1 and the Pitot tube testing device arranged in the pipeline 1 .

[0029] The pitot test device includes two pitot rows and a shaft sleeve 8 located on the axis of the pipeline 1 . There is a Pitot row respectively on bo...

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Abstract

The invention relates to a Pitot tube capable of conveniently adjusting an angle in a pipeline, which is characterized in that the Pitot tube is used for a pipeline fixedly connected with a fluid pipeline through a connecting piece and a Pitot tube testing device arranged in the pipeline, and the rotation angle of the pipeline relative to the fluid pipeline can be randomly adjusted. The invention further relates to a method for measuring the flow velocity of the fluid in the fluid pipeline. The fluid velocity in the pipeline can be measured, the structure is simple, precision is high, and operation is convenient. Compared with a traditional Pitot tube testing device and method, the Pitot tube testing device and method are advantaged in that the time for installing and adjusting the Pitot bar during measurement is shortened; sealing procedure for installing the Pitot bar is omitted; the turbulent flow influence on the fluid due to the existence of the Pitot tube is reduced by utilizing the airfoil; angle rotation is achieved through a U-shaped groove of the flange, and the Pitot tube device does not need to be dismantled.

Description

technical field [0001] The invention relates to a flow field velocity measuring mechanism and a measuring method thereof which can conveniently adjust the angle in a closed pipeline, and belongs to the field of fluid measuring instruments. Background technique [0002] Pitot tube is a commonly used experimental tool in fluid mechanics experiments. Using Pitot tubes to measure speed, determine flow rate, and measure fluid pressure has a reliable theoretical basis, is easy to use, and is accurate. It is a classic and extensive measurement method. When Pitot tubes are tested, it is required to ensure that the measuring point is in a straight pipe section where the fluid flow is stable, and the probe should be perpendicular to the section of the measuring point, so the relative requirements for Pitot tube testing are relatively high. [0003] When the traditional Pitot tube device measures multiple points in the same section of the pipeline, because it wants to achieve its purp...

Claims

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Application Information

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IPC IPC(8): G01P5/165
CPCG01P5/165
Inventor 邹旭
Owner 708TH RES INST OF CSSC
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