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Two-phase flow oscillation experiment device and experiment method

An experimental device and phase flow technology, applied in the direction of measuring devices, electrical devices, mechanical parts testing, etc., can solve the problems that the frequency and speed of diesel engine pistons cannot be achieved, and there are potential safety hazards, so as to facilitate transportation and transfer, prevent Vibration, the effect of improving work efficiency

Pending Publication Date: 2019-09-24
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0003] The current two-phase flow oscillation experiment, because the reciprocating oscillation in the experiment is carried out at low frequency and low speed, cannot reach the frequency and speed of the normal operation of the diesel engine piston, and the vibration of the experimental device has ignored the influence of the vibration of the experimental device on the law of motion during the reciprocating oscillation. impact, and there are safety hazards in the experiment

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  • Two-phase flow oscillation experiment device and experiment method
  • Two-phase flow oscillation experiment device and experiment method

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Embodiment Construction

[0027] Such as Figure 1-3 As shown, the two-phase flow oscillation experimental device of the present invention includes a workbench 1, a drive motor 2 fixedly installed on the workbench 1, a crank connecting rod 4 fixedly installed on the transmission shaft of the drive motor 2, and a diesel engine connected to the crank connect rod 4 Group 5, the connecting rod 6 vertically installed on the top of the piston of the diesel unit 5, the test platform 7 fixedly installed on the top of the connecting rod 6, and the piston oil chamber test piece 8 fixedly installed on the top of the test platform 7; 8 A high-speed camera 19 is arranged on the outside, and a dysprosium lamp 20 is arranged on one side of the high-speed camera 19 as auxiliary lighting. The shooting and acquisition frequency of the high-speed camera 19 is 2000 frames per second, and the pixel is 1024×1024, which meets the imaging requirements, and the dysprosium lamp 20 is a dysprosium lamp with high light efficiency...

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Abstract

The invention relates to a two-phase flow oscillation experiment device and an experiment method. The device comprises a working bench, a driving motor, a crank connecting rod, a diesel engine set, a connecting rod, a test platform and a piston oil chamber test piece. An outer side of the piston oil chamber test piece is provided with a high speed camera. The invention discloses steps of the experiment method. The device can simultaneously carry out a visualization experiment and an oscillating heat transfer experiment, and working efficiency is improved. Through the experiment method, an image and temperature data of a two-phase flow oscillation flow process in the piston oil chamber test piece can be simultaneously obtained, and then the image and the temperature data are processed so as to evaluate an effect of a two-phase flow oscillation flow field change on a heat transfer effect.

Description

technical field [0001] The invention relates to a two-phase flow oscillation experimental device and an experimental method. Background technique [0002] People's requirements for the low emission and fuel economy of the engine are increasing day by day. Because the working environment of the engine is very harsh, in order to ensure the reliability, durability and economy of the engine, the engine must be well cooled, and with the The continuous improvement of diesel engine power has put forward higher requirements for the reliability of its components. The piston needs to bear higher heat load to meet the requirements. Therefore, effective cooling of the diesel engine piston is to ensure the durability, reliability and economic premise. The commonly used cooling method is to take away the heat through the vibration of the oil in the internal cooling oil chamber; compared with other cooling technologies, the internal cooling oil chamber is a very effective structure for en...

Claims

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Application Information

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IPC IPC(8): G01N25/20G01N3/38G01N3/02G01M13/00G01K7/02
CPCG01N25/20G01N3/38G01N3/02G01M13/00G01K7/02
Inventor 朱海荣
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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