Cavitation and erosion experiment platform based on water circulation system

Abstract

The invention discloses a cavitation and erosion experiment platform based on a water circulation system. The cavitation and erosion experiment platform based on the water circulation system comprises a pump station, a water tank and a test section which are connected with one another through water pipes, flanges and the like, wherein the water tank is internally provided with a baffle plate; the test section is a fluid channel which consists of an upper plate, a base plate, a rear plate and a front plate and has a square cross section, and is provided with three observation windows including a front observation window, a rear observation window and an upper observation window, and the base plate is provided with a turbulent flow object. The cavitation and erosion experiment platform provided by the invention has the advantages of simple structure, stable running, continuous adjustable cavitation intensity, adjustable shape of the turbulent flow object, adjustable distance between the turbulent flow object and a test element, simple experiment operation, favorable performance effect of induction and cavitation by the turbulent flow object, easiness in observation on generation areas and dynamic characteristics of a cavitation bubble group close to the turbulent flow object.

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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Problems solved by technology

[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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