Air source heat pump for radiating heat by spraying and defrosting by using hot water

Abstract

The invention discloses an air source heat pump for radiating heat by spraying and defrosting by using hot water. A closed-loop system is formed by a first heat exchanger and a second heat exchanger which are arranged in a machine shell through a compressor and an expansion valve. When the air source heat pump works in a summer refrigerating mode, a spray system is arranged beside the second heat exchanger, namely a condenser; a plurality of nozzles of the spray system face heat exchange pipelines of the second heat exchanger and fins among the heat exchange pipelines of the second heat exchanger; and the spray system sprays water to the heat exchange pipelines of the second heat exchanger and the fins among the condenser, so the heat exchange efficiency of the air source heat pump is improved and the refrigeration cost is reduced by improving the effect of forced radiating of a fan by using the theory of radiating heat through evaporation; when the air source heat pump works in a winter heating mode, hot water pipes of a hot water tank adjacent to the second heat exchanger, namely an evaporator, and the heat exchange pipelines of the second heat exchanger are arranged at interval; and due to the heat exchange of the hot water pipes, the temperature of the evaporator is raised and frost on the surface of the evaporator is removed, the heat exchange efficiency of the air source heat pump is improved, the machine performance of the heat pump is improved, the heating cost is reduced and good heat supply effect is ensured.

Description

technical field [0001] The invention relates to an air-source heat pump, in particular to an air-source heat pump with spray heat dissipation and hot water defrosting. Background technique [0002] In the prior art, when the air source heat pump is running in summer, the temperature of the heat exchange pipe and its fins of the condenser is very high, and a forced cooling fan is required to improve the heat dissipation effect, which makes the cooling cost higher and the heat dissipation effect is difficult to improve; When the source heat pump is running in winter, the temperature of the heat exchange pipe and its fins of the evaporator is very low, and it is easy to frost and reduce its heat exchange efficiency. One way is to use electric heating to remove the heat transfer of the evaporator Frosting on the pipe and its fins; another way is to run the defrosting in reverse, which is to use the program to make the air source heat pump run in reverse, so that the temperature ...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, when the air source heat pump is running in summer, the temperature of the heat exchange pipe and its fins of the condenser is very high, and a forced cooling fan is required to improve the heat dissipation effect, which makes the cooling cost higher and the heat dissipation effect is difficult to improve; When the source heat pump is running in winter, the temperature of the heat exchange pipe and its fins of the evaporator is very low, and it is easy to frost and reduce its heat exchange efficiency. One way is to use electric heating to remove the heat transfer of the evaporator Frosting on the pipe and its fins; another way is to run the defrosting in reverse, which is to use the program to make the air source heat pump run in reverse, so that the temperature of the heat exchange pipe of the evaporator and its fins will increase to remove the heat transfer of the evaporator. Frosting on pipes and their fins

These two methods will increase the heating cost and reduce the efficiency, and the heating cannot be supplied when the machine defrosts, and it is difficult to defrost continuously, and the effect is often unsatisfactory.

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