Testing machine and testing method for internal fluid pressure of cavitation generator

Abstract

The invention discloses a cavitation generator internal fluid pressure testing machine and a testing method, and relates to the technical field of fluid cavitation pressure testing, a support is provided with a clamping and fixing mechanism, the clamping and fixing mechanism can move up and down along a sliding groove formed in the support, and one end of the clamping and fixing mechanism is provided with a clamping unit; the clamping unit is used for clamping and supporting a cavitation generator body to be tested; the clamping unit is provided with a lifting mechanism, the output end of the lifting mechanism is connected with a lifting plate, the lifting plate is connected with a pressure sensor, and the sensing end of the pressure sensor is arranged in the to-be-tested cavitation generator body; the position of the pressure sensor in the to-be-detected cavitation generator body can be adjusted through vertical movement of the lifting plate, so that fluid pressure values at different positions are detected. The device has the advantages that the fluid pressure in the cavitation generator is accurately positioned and measured at multiple points, the cavitation pressure under various working conditions is measured under the condition that the cavitation generator is not disassembled and replaced, and the operation efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of fluid cavitation pressure testing, in particular to a fluid pressure testing machine and a testing method inside a cavitation generator. Background technique [0002] The performance of the hydraulic cavitation generator used in deep-sea mixed mineral transport flotation is closely related to its internal cavitation reaction. Cavitation is the process of formation, development and collapse of vapor or gas cavities (cavitations) inside the liquid or on the liquid-solid interface when the local pressure in the liquid decreases, and the cavitation behavior of the mixed fluid in the cavitation generator During research, it is necessary to conduct pressure tests on its internal flow field. The Chinese patent has published a pipeline fluid detection device with the publication number CN200993582, which includes a measuring tube, an elastic tube, an outer sleeve, a weight detection mechanism, a compensation adj...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present invention is to provide a cavitation generator internal fluid pressure testing machine, which has the advantages of precise positioning and multi-point measurement of the internal fluid pressure of the cavitation generator, and solves the problem by using a clamping unit. The clamping mechanism of the existing testing machine can limit the clamping size of the variable-diameter pipe fittings; at the same time, by setting the flexible heating belt, the internal cavitation degree of the flow field can be adjusted and controlled by setting the temperature, providing a variety of research conditions for pressure measurement

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