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Endoscopic PIV test device for measuring axial flow velocity field of water pump

A test device and flow velocity field technology, applied in the field of endoscopic PIV test device, can solve the problems of complicated structure and high cost of the test device, achieve the effects of reducing test cost, improving test accuracy and simplifying the test process

Active Publication Date: 2021-08-31
708TH RES INST OF CSSC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: the traditional test device for PIV internal flow field test has complicated structure and high cost

Method used

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  • Endoscopic PIV test device for measuring axial flow velocity field of water pump
  • Endoscopic PIV test device for measuring axial flow velocity field of water pump
  • Endoscopic PIV test device for measuring axial flow velocity field of water pump

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these examples are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by 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.

[0025] like figure 1 As shown, an endoscopic PIV testing device for water pump axial velocity field test disclosed in the present invention includes: a testing shell module 1 , an installation module 2 , a camera module 3 and a chip light source module 4 .

[0026] combine figure 2 , the test housing module 1 includes: a main body 11 , a base 12 and a sealing mechanism 13 . The body 11 is a pump impeller casing. combine i...

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Abstract

The invention relates to an endoscopic PIV test device for a water pump axial flow velocity field test. The endoscopic PIV test device is characterized by comprising a testing shell module and an endoscope system, wherein the testing shell module comprises a pump impeller bushing, a base and a sealing mechanism, and the endoscope system comprises a camera module and a sheet light source module. According to the invention, on the basis of a non-transparent impeller sleeve of a water pump, an endoscope system is guided into the impeller sleeve and is combined with a camera and a sheet light source for PIV test by welding a phi 38 base, drilling a phi 10 through hole and assembling a sealing mechanism, and the axial velocity field of the pump is directly measured; and after the device is applied, a full-transparent impeller sleeve does not need to be reprocessed in a water pump PIV axial flow velocity field test, an optical distortion prevention auxiliary device is additionally arranged, and optical distortion correction is carried out on a shot image, so that the test cost is reduced, the test process is simplified, the PIV test precision is improved, and non-contact direct measurement of the pump axial flow velocity field is realized.

Description

technical field [0001] The invention relates to an endoscopic PIV test device for measuring an axial flow velocity field, and belongs to the technical field of water pump testing. Background technique [0002] Particle Image Velocimetry (PIV) method, as a non-contact global instantaneous flow field measurement technology, has been widely used in fluid machinery internal flow field experiments. The impeller casing of the water pump is an opaque circular thin-walled shell. The impeller casing must be reprocessed with fully transparent materials in the PIV internal flow field test. In addition, in order to avoid the optical distortion existing in the actual field of view, it must be equipped with an additional preventer on the see-through surface. Auxiliary devices for optical distortion, and filling them with the same optical physical property medium, the traditional testing device has a complicated structure and high cost, especially for some field production equipment, it is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/00G01P5/20
CPCG01P5/001G01P5/20Y02E30/30
Inventor 冯超王宗龙朱健申耿浩涵夏华猛
Owner 708TH RES INST OF CSSC
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