Sectional type defrosting air conditioner and sectional type defrosting method

Abstract

The invention provides a sectional type defrosting air conditioner and a sectional type defrosting method. The sectional type defrosting air conditioner comprises an outdoor unit, deicing valves and a compressor, temperature detection equipment is arranged in the outdoor unit, and the top, the middle and the bottom of the outdoor unit communicate with the compressor through the deicing valves correspondingly; and the deicing valves determine whether to be opened or not according to the temperature detected by the temperature detection equipment. The sectional type deicing technology of forward circulation of an air-cooled heat pump is effectively achieved through the sectional type defrosting air conditioner, stable heating is guaranteed, meanwhile, the threshold value is intelligently and automatically adjusted in combination with the air temperature, and accuracy and reliability are achieved; multi-flow-path rapid switching control is carried out, according to different deicing requirements, control output is carried out in a sectional manner, a heat transmission area and an effective heat exchange area are controlled, and accurate forward circulation defrosting and deicing are achieved; efficient intelligent identification and control judgment are achieved, and deicing is fast; and the scheme can be popularized to all use of the machine type.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a segmented defrosting air conditioner and a segmented defrosting method. Background technique [0002] The air-cooled heat pump unit is widely used to improve the quality of life of residents. Its main function is to use a small amount of electric energy to convert the output into heat energy at the end of the customer with the help of the air conditioner system, so as to achieve the effect of cooling or heating. Among them, the heat pump unit mainly lies in the application of the heating function. As the name suggests, the "heat pump" unit is a unit that absorbs heat from the low heat energy area to overcome the natural transfer gradient difference of heat energy to the high heat area. [0003] In the area north of the Huaihe River, the application of heating function in winter is particularly obvious, and the air-cooled heat pump unit is also favored by consumers. Ho...

AI Technical Summary

Problems solved by technology

This solution can improve the quality of customer enjoyment, but in the defrosting and deicing stage, only one branch path flows through the bottom of the outdoor heat exchanger, and the heat is transferred from the bottom to the top inside the two devices through internal heat transfer. Affected by the forced airflow, the defrosting effect is relatively insufficient, and the defrosting and deicing cycle is relatively long

However, it leads to the consumption of refrigerant and affects the heat of the whole machine.

Images