Auxiliary heat-tracing ultra-low temperature air source heat pump air conditioner

An air source heat pump, ultra-low temperature technology, applied in heat pumps, lighting and heating equipment, compressors with reversible cycles, etc., can solve the problem of reduced energy efficiency ratio, inability to achieve defrosting and summer refrigeration operation conversion, loss of two-stage cascade operation and other problems to achieve the effect of improving energy efficiency ratio, improving heating efficiency, and increasing suction temperature
CN101270937AInactive Publication Date: 2008-09-24王全龄
0 Cites 9 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
王全龄
Publication Date
2008-09-24
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides an auxiliary heat tracing ultralow temperature air heat pump air-conditioning, consisting of an air source heat pump system and an heat pump auxiliary heat tracing system, wherein the air source heat pump system consists of a compressor, a four-way reversing valve, an indoor heat exchanger, an expansion valve and an outdoor heat exchanger; the heat pump auxiliary heat tracing system consists of a compressor, a four-way reversing valve, an auxiliary heat tracing heat exchanger, an expansion valve and an outdoor heat exchanger. The heat pump air conditioning is also provided with a feedback auxiliary heating circuit. The invention adopts an air source heat pump system and is provided with a heat pump auxiliary heat tracing system, thereby the air source heat pump can effectively realize the cooling operation in the environment of ultra-low temperature below 20 degrees centigrade below zero; and in the environment of low temperature above 20 degrees centigrade below zero, the operation is shifted into the independent heating operation of the air source heat pump system and is reversed through the four-way reversing valve to realize the defrosting operation and the summer cooling operation. The feedback auxiliary heating circuit of the invention improves the suction temperature and the EER of the compressor of the auxiliary heat tracing system, thus improving the heating efficiency of the air conditioning system.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an air source heat pump air conditioner, in particular to an auxiliary heating type ultra-low temperature air source heat pump air conditioner. Background technique

[0002] In order to be able to effectively heat in an ultra-low temperature environment below -20°C, the existing technology uses a cascaded heat pump system, that is, a two-stage heat pump system that is coupled by a low-temperature heat pump system at the front stage and a high-temperature heat pump system at the rear stage through a condensing evaporator. Although the two-stage heat pump system theoretically solves the heating problem in the ultra-low temperature environment below -20°C, it is difficult to become a practical air-conditioning product, because the existing cascade heat pump can only operate in two-stage cascade heating, and the outdoor environment The temperature changes. When the temperature is above -20°C, the energy efficiency ratio of the two-...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More