The brazed plate heat exchanger was first used in refrigeration units in the 1970s. Compared with the traditional shell and tube heat exchanger, it has very obvious development advantages, and many developed countries are competing to participate in the research and development. After decades of development, brazed plate heat exchangers are mainly used in air conditioning and refrigeration, heating and heating, chemical industry, metallurgy, machinery, electric power, paper making, textile, food, waste heat recovery, and other industries, among which the most widely used in air conditioning and refrigeration, heating, and heating industry.
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