A refrigeration system waste heat recovery device and control method for realizing multi-temperature zone water supply

Abstract

The invention discloses a waste heat recovery device and a control method of a refrigeration system for realizing multi-temperature zone water supply. The device includes a heat recovery circuit connected in parallel on the condensation side of the refrigeration system, and also includes a heat pump system, a water supply system, a first water outlet (100) and a second water outlet (200); cooling, while the heat recovery loop utilizes the heat of the refrigeration system to heat the water and output it from the first water outlet (100); the heat recovery loop is also connected to the heat pump system to realize the heating of the heat pump system to the output water of the heat recovery loop; and, the heat The water heated by the recovery loop also heats and subcools the heat pump system. The present invention utilizes the characteristics that the food processing industry needs water supply in multiple temperature zones, combines the refrigeration system, the replenishment water supply system and the heating system, and through one-time water supply, not only realizes low, medium and high temperature water supply, but also improves the refrigeration system and Efficiency of the heat pump system.

Description

technical field [0001] The invention relates to a waste heat recovery device of a refrigeration system, and also relates to a control method for recovery of waste heat of the refrigeration system. Background technique [0002] In recent years, the food refrigeration processing industry has developed rapidly, and the research on energy-saving application of refrigeration systems has made significant progress. Its development trend has changed from the improvement of the energy efficiency of a single refrigeration system to the improvement of the energy efficiency of the comprehensive application of cold and heat integrated systems. [0003] After actual research, it is found that the food processing industry has dual needs for cooling and heating, especially hot water with low, medium and high temperatures for cleaning, blanching, cooking and other processes, and the above hot water is used for one-time consumption. Cannot be recycled, requires continuous rehydration. The ex...

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Problems solved by technology

[0003] After actual research, it is found that the food processing industry has dual needs for cooling and heating, especially hot water with low, medium and high temperatures for cleaning, blanching, cooking and other processes, and the above hot water is used for one-time consumption. Cannot be recycled, requires continuous rehydration

The existing solution is: the refrigeration system provides a cold source, and at the same time uses steam heating to meet the water supply needs of different temperature zones. The disadvantage is that the refrigeration system and the heating system operate independently, the efficiency is low, and the energy is not fully utilized.

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