A cavitation cavitation test platform based on water circulation system
A technology of cavitation cavitation and experimental platform, which is applied in the direction of fluid dynamics test, machine/structural component test, measuring device, etc., can solve the problem that it is difficult to observe the generation area and dynamic characteristics of cavitation group, and the situation of cavitation cannot be carried out Quantitative analysis, inability to frequently take out experimental materials, etc., to achieve stable cavitation effect, easy processing and acquisition, and less equipment
Active Publication Date: 2016-09-21
CHINA UNIV OF MINING & TECH
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[0002] Cavitation phenomenon is the phase transition process of liquid from liquid phase to gas phase. Since cavitation and cavitation erosion are microscopic instantaneous, random and multi-phase complex phenomena, cavitation involves many fields such as national defense, aerospace, chemical industry, biology and medicine. , so it has far-reaching theoretical significance and great practical value for the study of the mechanism of cavitation and cavitation erosion and the technical method of suppressing cavitation; however, so far, there is no complete system of theories about cavitation and cavitation , many issues remain to be further studied and explored
[0003] At present, there are usually two ways to study the anti-cavitation performance of materials. One is to conduct on-site prototype experiments on a certain material, but the test takes a long time and is not economical; at the same time, it is difficult due to the complexity of the on-site environment; the other The first is to use indoor experimental equipment to conduct simulation experiments, also known as rapid cavitation experiments, and compare the results with field data; commonly used indoor cavitation experiment equipment includes magnetostrictive instruments, rotating disc cavitation equipment, water droplet Erosion equipment, ultrasonic cavitation equipment, laser cavitation experiments, etc.
These experimental facilities can only observe the cavitation on the surface of the material after a period of cavitation, and it is difficult to observe the generation area and dynamic characteristics of the cavitation group during the cavitation process; in addition, in order to ensure the continuity of the experiment, it is not possible to take out the cavitation frequently during the experiment. Experimental materials can only roughly analyze the occurrence degree of cavitation erosion in a certain period of time, but the cavitation erosion situation in this period of time cannot be quantitatively analyzed
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[0018] The present invention will be further described below in conjunction with accompanying drawing.
[0019] Such as figure 1 As shown, a kind of cavitation cavitation experiment platform based on water circulation system includes pumping station 2, water tank 3 and test section 1, and described pumping station 2, water tank 3 and test section 1 are connected to each other through water pipes, and water tank 3 is equipped with There is an isolation board, and the pumping station 2 has a built-in frequency converter, such as figure 2 , image 3 and Figure 4 As shown, the cross-section of the test section 1 composed of the upper plate 13, the base plate 14, the rear plate 18 and the front plate 19 is a square fluid passage, the cross section of the upper plate 13 is T-shaped, and the middle part of the upper plate 13 is The upper glass 12 is built in, and the upper glass 12 adopts a square truss structure. The upper side of the upper plate 13 is also provided with an upp...
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The invention discloses a cavitation cavitation experiment platform based on a water circulation system, which includes a pump station, a water tank and a test section. The pump station, the water tank and the test section are connected to each other through water pipes and flanges, and the inside of the water tank is provided with isolation The test section is a fluid channel with a square cross section consisting of the upper plate, the bottom plate, the rear plate and the front plate. The test section is equipped with three observation windows, front, rear and upper, and a spoiler is provided on the bottom plate. The invention has the advantages of simple structure, stable operation, continuously adjustable cavitation intensity, adjustable spoiler shape, adjustable distance between spoiler and test piece, simple experimental operation, and performance effect of spoiler-induced cavitation Better, the generation area and dynamic characteristics of the cavitation group near the spoiler are easy to observe.
Description
technical field [0001] The invention relates to a cavitation and cavitation test platform, in particular to a cavitation and cavitation test platform based on a water circulation system. Background technique [0002] Cavitation phenomenon is the phase transition process of liquid from liquid phase to gas phase. Since cavitation and cavitation erosion are microscopic instantaneous, random and multi-phase complex phenomena, cavitation involves many fields such as national defense, aerospace, chemical industry, biology and medicine. , so it has far-reaching theoretical significance and great practical value for the study of the mechanism of cavitation and cavitation erosion and the technical method of suppressing cavitation; however, so far, there is no complete system of theories about cavitation and cavitation , many issues remain to be further studied and explored. [0003] At present, there are usually two ways to study the anti-cavitation performance of materials. One is ...
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IPC IPC(8): G01N21/84G01M10/00
Inventor 刘秀梅李贝贝龙正刘新华
Owner CHINA UNIV OF MINING & TECH