Evaporating and cooling system of electric vibration testing bench

Abstract

The invention relates to an electric vibration test table vaporize cooling system, wherein it uses fluorocarbon whose boiling point is 50-60Deg. C as cooling medium; uses exciting coil and driving coil cooling channel to be filled into the exciting coil and driving coil of electric vibration table; via boiling medium, absorbs the hidden heat to cool the electric vibration table; the cooling medium is heated and vaporized at the exciting and driving coils to be condensed by heat exchanger (condenser) without compression; uses the secondary cooling water to emit the heat in normal temperature; the boiled medium will change density, to utilize the changes of absorbed heat and medium density to generate pressure difference, to form self-circulated power; therefore, the invention can avoid additional power, to circulate the medium in cooling system, to realize self-circulated vaporization cooling. The invention has high efficiency and high reliability.

Description

technical field [0001] The invention relates to an electrodynamic vibration test device in an environmental mechanical test, in particular to an evaporative cooling system for an excitation coil, a drive coil and a short-circuit ring in an electrodynamic vibration test bench. This cooling system is especially suitable for high-thrust electric vibration tables, providing efficient cooling. Background technique [0002] Electrodynamic vibration test bench (hereinafter referred to as electrodynamic vibration table) is a kind of equipment for vibration simulation test of products or components. It is designed using the principle of electromagnetic vibration, and its structure is mainly composed of table body, magnetic cylinder, excitation coil, moving coil, guide wheel structure and air spring. Among them, the excitation coil is fixedly installed in the table body, and a sufficiently strong constant magnetic field is generated in the working air gap after being energized, and i...

AI Technical Summary

Problems solved by technology

However, the disadvantages of this cooling method are: 1. Due to the generation of scale and the deposits such as copper oxide and cuprous oxide generated by the oxidation of the hollow wire and oxygen ions in the water, the waterway is blocked, and then the winding is locally overheated and burned.

2. The circulating water joint and each sealing point are prone to water leakage due to water pressure, resulting in the danger of short circuit and electric leakage

3. Due to the high-speed flow of water in the tube, water drilling is prone to occur, which will damage the excitation coil and the inner wall of the moving coil tube

It can be seen that the blockage and leakage of the inner wall of the excitation coil and the moving coil tube have always been the Achilles heel of the development of the water-cooled electric vibrating table

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