High-pressure leakage detection equipment of finned heat exchanger

Abstract

The invention relates to the technical field of heat exchange equipment, and provides the high-pressure leakage detection equipment of a finned heat exchanger. A multi-way part is provided with a gas inlet, a gas outlet, a pressure measuring port and at least one test port. A supercharger is connected with a gas supply main pipeline. The gas outlet of the supercharger is connected with a high-pressure gas storage tank through a one-way valve. The high-pressure gas storage tank is connected with a gas inlet pipeline of the multi-way part. A first electric contact pressure gauge, a pressure reducer and a first electromagnetic valve are sequentially arranged on a connecting pipeline. The test port of the multi-way part is connected with the heat exchanger through a high-pressure rubber tube and a pressure testing joint. The heat exchanger is arranged in a water tank. The pressure measuring port of the multi-way part is provided with a second electric contact pressure gauge. The gas outlet of the multi-way part is connected with the gas supply main pipeline. A second electromagnetic valve is arranged on the connecting pipeline. An electric control unit is respectively and electrically connected with the supercharger, the first electric contact pressure gauge, the second electric contact pressure gauge, the first electromagnetic valve and the second electromagnetic valve. By adopting the equipment, the accurate leakage detection of the heat exchanger can be realized. Meanwhile, the equipment is easy to operate, and high in safety coefficient.

Description

technical field [0001] The invention relates to the technical field of heat exchange equipment, in particular to a heat exchanger leak detection equipment. Background technique [0002] The key indicator of the quality of the sealed heat exchanger is that the heat exchanger needs to be tested for leaks before leaving the factory to ensure that it is well sealed. The commonly used leak detection method is water detection, that is, the heat exchanger is filled with compressed air or nitrogen and put into water to check whether it leaks. The heat exchangers used in different working conditions have different working pressures, so high-pressure air of different pressures is required to complete the leak detection test, especially for heat exchangers with high working pressure (such as the working pressure of carbon dioxide heat exchanger is 8MPA ) also need the corresponding high-pressure air and supporting joints and pressure test guns to carry out the leak detection test. The...

AI Technical Summary

Problems solved by technology

The heat exchangers used in different working conditions have different working pressures, so high-pressure air of different pressures is required to complete the leak detection test, especially for heat exchangers with high working pressure (such as the working pressure of carbon dioxide heat exchanger is 8MPA ) also need the corresponding high-pressure air and supporting joints and pressure test guns for leak detection test, the existing leak detection equipment can not meet the high-pressure test requirements

At the same time, in the existing water inspection, it is usually necessary to observe with human eyes to judge whether there is a leak, and the detection accuracy is difficult to guarantee; the high-pressure gas after the detection lacks a recycling link, and there is a problem of gas waste

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