Using method of efficient energy-saving type air source heat pump

Abstract

The invention provides a using method of an efficient energy-saving type air source heat pump. The efficient energy-saving type air source heat pump comprises a comprehensive heat supply unit, a firstheat exchanger and a second heat exchanger. The using method comprises the following steps: controlling the first heat exchanger to communicate with the outlet of the comprehensive heat supply unit through a first bypass pipeline to defrost; controlling the second heat exchanger to communicate with the outlet of the comprehensive heat supply unit through a second bypass pipeline to defrost; controlling the first heat exchanger to communicate with the outlet of the comprehensive heat supply unit through a first main pipeline to take heat; and controlling the second heat exchanger to communicate with the outlet of the comprehensive heat supply unit through a second main pipeline to take heat. The using method avoids the risks of halt of system heating and high pressure of a refrigerant compressing device.

Description

technical field [0001] The invention relates to the field of air source heat pumps, in particular to a method for using a high-efficiency and energy-saving air source heat pump. Background technique [0002] The air source heat pump is an energy-saving device that uses high-level energy to make heat flow from low-level heat source air to high-level heat source. It is a form of heat pump. As the name implies, a heat pump is like a pump, which can convert low-level thermal energy that cannot be directly used (such as the heat contained in air, soil, and water) into high-level thermal energy that can be used, thereby saving some high-level energy (such as coal, gas, oil, etc.) , electricity, etc.) purpose. [0003] When the existing air source heat pump system continuously supplies heat in winter, when it is in the defrosting mode, the four-way valve reversing system has the problem of intermittent heat supply and high load. The specific reason is that the plate-fin combined ...

AI Technical Summary

Problems solved by technology

[0003] When the existing air source heat pump system continuously supplies heat in winter, when it is in the defrosting mode, the four-way valve reversing system has the problem of intermittent heat supply and high load. The specific reason is that the plate-fin combined heat exchanger in winter When the temperature is below zero and the high-load heating mode is running, the fins of the plate-fin combined heat exchanger are likely to be covered by a frost layer, which reduces the heat transfer capacity of the plate-fin combined heat exchanger and seriously affects the working efficiency of the heat pump unit.

Images