CO2 cold and hot combined supply modular unit and cold and hot combined supply method

Abstract

The invention provides a CO2 cold and hot combined supply modular unit and a cold and hot combined supply method, and belongs to the technical field of cold and hot combined supply. The CO2 cold and hot combined supply modular unit comprises a CO2 compressor, a gas cooler, an evaporator, a regenerator, a liquid storage oil scavenger, an evaporator, an expansion valve, an ice water tank, a runningwater tank, a hot water tank, an electric valve, a cold water pump and a hot water pump; the CO2 compressor compresses carbon dioxide gas into a fluid, the fluid is discharged into the gas cooler, water passes through the gas cooler and is in heat exchange with the fluid, the temperature of the water is increased, the water with temperature increased enters the hot water tank, and the temperatureof the fluid is lowered; the fluid from the gas cooler passes through the expansion valve for throttling, is cooled and subjected to pressure reduction to become liquid, the liquid enters the evaporator, cold water is sucked into the evaporator, the liquid and the cold water perform the heat exchange, the liquid is evaporated into gas, the temperature of the cold water is lowered, and the gas passes through the liquid storage oil scavenger and the regenerator and is sucked by the CO2 compressor for entering next circulation. The CO2 cold and hot combined supply assembly unit can provide hot water with higher temperature, outputs transportable ice crystals, and increases the energy utilization rate.

Description

technical field [0001] The present invention relates to CO 2 The combined cooling and heating module unit and the method for the combined cooling and heating belong to the technical field of combined cooling and heating. Background technique [0002] At present, in the traditional slaughtering industry, such as the chicken slaughtering industry, a large amount of cooling and heat are required when slaughtering chickens. However, a large amount of heat is discharged during the refrigeration process, and the discharged heat is wasted because it cannot be used, and the required heat is obtained by burning coal, thus causing a waste of energy. [0003] In the current refrigeration process, it is generally a single refrigeration, and it is difficult to achieve combined cooling and heating. Even if some technologies can achieve combined cooling and heating, the hot water produced can only be used as domestic hot water or domestic heating. Moreover, most of the refrigerants are F...

AI Technical Summary

Problems solved by technology

However, a large amount of heat will be discharged during the refrigeration process, which is wasted because it cannot be used, and the required heat is obtained by burning coal, thus causing a waste of energy

[0003] In the current refrigeration process, it is generally a single refrigeration, and it is difficult to achieve combined cooling and heating. Even if some technologies can achieve combined cooling and heating, the hot water produced can only be used as domestic hot water or domestic heating. Moreover, most of the refrigerants are Freon, which cannot provide hot water at a higher temperature.

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