Heat recovery water chiller-heater unit for low-temperature ice source heat pump used in northern area

Abstract

A heat recovery water chiller-heater unit for a low-temperature ice source heat pump used in the northern area is characterized in that an air exchanger, an exchanger, a low-temperature-stage compression device and a high-temperature-stage compression device are included; the upper end of the exchanger is connected with a solar heat collector through a valve opening; and the air exchanger comprises an outer unit shell, a filling chamber, a fan and an ice source solution accumulation pool. The heat recovery water chiller-heater unit has the beneficial effects of being compact in structure and low in cost; refrigerant media which cannot be frozen at the temperature of -30 DEG C and air are subjected to heat exchange to serve as a refrigerating medium or heating medium, and the refrigerating or heating effect is improved; high-temperature evaporation can be carried out, efficiency is improved, energy consumption is obviously reduced, and pollution is reduced; and the heat recovery water chiller-heater unit can adapt to frigid weather and environment, especially the northern area, in use.

Description

technical field [0001] The present invention belongs to the field of ice source technology, specifically an ice source heat pump cold and hot water unit used in the north. Background technique [0002] In most areas, the heating load required in winter is unbalanced with the cooling load required in summer. The cooling load in the south far exceeds the heating load, the heating efficiency in the north is low, and the heating load in the north is much greater than the cooling load. The cooling and heating loads are unbalanced. , Year after year, the buried pipe water source heat pump will eventually cause the underground temperature of the southern project to become higher and higher, and the heat dissipation will deteriorate, resulting in a gradual decrease in the energy efficiency ratio of the water source heat pump in this area when summer cooling is most needed, and the underground temperature of the northern project will be lower. As the heat absorption becomes lower and...

AI Technical Summary

Problems solved by technology

[0002] In most areas, the heating load required in winter is unbalanced with the cooling load required in summer. The cooling load in the south far exceeds the heating load, the heating efficiency in the north is low, and the heating load in the north is much greater than the cooling load. The cooling and heating loads are unbalanced. , Year after year, the buried pipe water source heat pump will eventually cause the underground temperature of the southern project to become higher and higher, and the heat dissipation will deteriorate, causing the energy efficiency ratio of the water source heat pump in this area to gradually decrease when summer cooling is most needed, and the underground temperature of the northern project will be lower. As the heat absorption becomes lower and lower, the energy efficiency ratio of the water source heat pumps in this area is gradually reduced when heating in winter is most needed. As the years go by, this costly energy-saving system may eventually be paralyzed, and there will be geological variations risk, the cost is quite high

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