Pulse circulation cleaning device for heat exchanger and using method thereof

Abstract

The invention provides a pulse circulation cleaning device for a heat exchanger and a using method thereof. The pulse circulation cleaning device for the heat exchanger is characterized by comprising a gas buffering tank, a pulse generator, a gas and liquid mixer and a switching valve. The gas buffering tank is used for providing compressed air. An air inlet of the pulse generator is connected with an air outlet of the gas buffering tank. The gas and liquid mixer is provided with a gas phase inlet, a liquid phase inlet and a gas and liquid outlet. The liquid phase inlet is connected with an outlet of a cleaning pump. The switching valve is provided with a water inlet, a drainage opening, a circulating water supply opening and a circulating water return opening. The water inlet is connected with the gas and liquid outlet. The invention further provides a method for using the cleaning device for cleaning the heat exchanger. According to the cleaning device, the gas-liquid pulse cleaning technology, the chemical circulation cleaning technology and the circulation cleaning technology are combined, and therefore the pulse circulation cleaning device has the advantages of being high in cleaning efficiency, good in adaptability, low in cleaning cost, easy and convenient to use and operate and the like, and various heat exchangers can be cleaned without shutting down a unit.

Description

technical field [0001] The present invention relates to a heat exchanger cleaning device and its use method, in particular to a non-stop cleaning device and its use method for various heat exchangers suitable for power stations, chemical industry, HVAC and other industries. Background technique [0002] The function of the heat exchanger is to exchange heat between different temperatures and media through heat exchange tubes or heat exchange fins. The cold end medium of the heat exchanger generally adopts untreated surface water, sea water or ground water, and more and more enterprises use urban reclaimed water. During the operation of the heat exchanger, due to the heat exchange and the concentration of cooling water, the heat exchange tubes or heat exchange fins will produce mud and fouling problems, resulting in a decrease in the heat exchange effect of the heat exchanger. Long-term fouling will also cause corrosion and leakage of the inner wall of the heat exchange tube...

AI Technical Summary

Problems solved by technology

Although the automatic cleaning device of the above-mentioned heat exchanger adopts the method of cleaning liquid circulation and cleaning, the above-mentioned automatic cleaning device is suitable for the cleaning of the plate heat exchanger of the polysilicon water system, and is not suitable for other types of heat exchangers; and, the automatic cleaning The cleaning of the device cannot meet the requirements of different water quality and scale samples, the simplicity of the actual operator, and the use of different cleaning methods for different users, and it cannot realize the clean and efficient operation of the heat exchanger to the greatest extent.

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