A new air source heat pump heat exchange system

Abstract

The invention relates to a novel air source heat pump heat exchange system, comprising a heat pump unit, the heat pump unit includes an evaporator assembly, a compressor, a condenser assembly and a throttling device, the evaporator assembly includes an evaporator, installed on the evaporator The upper heat exchange fan, the second condenser arranged on the evaporator, the condenser assembly includes a condenser and a driving device arranged on the condenser, the evaporator, compressor, condenser, second condenser and The throttling device is sequentially connected end to end through pipelines to form a circulation loop, and refrigerant circulates in the pipelines. This system can not only make the temperature of condensed water (condensed air) exceed 80°C, and the maximum temperature can reach above 100°C, but also save energy and protect the environment. This system can be used to develop a variety of products for different purposes.

Description

technical field [0001] The invention relates to a novel air source heat pump heat exchange system. Background technique [0002] The existing heat pump heat exchange system consists of a compressor, a heat exchanger, an axial flow fan, an expansion valve and an electronic automatic temperature controller. After the power is turned on, the axial flow fan starts to run, the outdoor air passes through the evaporator for heat exchange, and the air with reduced temperature is discharged by the axial flow fan. This R22 low-pressure refrigerant gas is compressed into high-temperature, high-pressure liquid and sent to the condenser, and the water or wind below 70°C forcedly circulated by the pump passes through the condenser for heat exchange. 50-70℃) high pressure (1.5-3MPA) liquid, the medium temperature and high pressure liquid is throttled through the expansion valve and then becomes low temperature and low pressure gas, and the low temperature and low pressure gas returns to t...

AI Technical Summary

Problems solved by technology

After the power is turned on, the axial flow fan starts to run, and the outdoor air passes through the evaporator for heat exchange, and the cooled air is discharged by the axial flow fan. The R22 low-pressure refrigerant gas is compressed into a high-temperature, high-pressure liquid and sent to the condenser, and the water or wind below 70°C circulated by the pump is forced to exchange heat through the condenser, and the refrigerant working condition after heat exchange is condensed into a medium temperature ( 50-70℃) high-pressure (1.5-3MPA) liquid, medium-temperature high-pressure liquid and then throttling through the expansion valve to become low-temperature and low-pressure gas, the low-temperature and low-pressure gas returns to the evaporator to absorb heat and then enters the heat pump reciprocating cycle. If the medium-temperature heat pump condensing temperature exceeds The pressure of the high-temperature condenser at 70-80°C exceeds 4MPA high pressure, and the pressure limit load of the compressor (3.5-4MPA). Under the action of the overload protection mechanism, the compressor stops working, which causes the heat exchange method to limit the heat exchange. The temperature of hot water or hot air cannot exceed 80°C, which is the bottleneck for the development of new products with existing heat pump technology

Images