A control method for a compensating dual-source heat pump cold and hot air-conditioning unit
A dual-source heat pump and air conditioning unit technology, applied in heating and cooling combinations, heat pumps, refrigerators, etc., can solve problems such as short cooling time, long heating time, and ground-source heat imbalance
Active Publication Date: 2018-05-01
GUANGDONG SHENLING ENVIRONMENT SYST CO LTD +1
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Problems solved by technology
[0006] In view of this, the purpose of the present invention is to overcome the deficiencies of the prior art, to provide a compensating dual-source heat pump cold and hot air-conditioning unit and its control method, which solves the problem of long heating time and short cooling time of traditional ground-source heat pump air conditioners. The problem of ground source heat imbalance
Method used
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Embodiment 1
[0058] like figure 1 As shown, a compensating dual-source heat pump cold and hot air-conditioning unit includes a refrigeration system, a ventilation system, a compensating water source system and an automatic control system;
[0059] The refrigeration system includes a refrigerant circulation loop composed of a water source heat exchanger 14, a heat source side air-cooled heat exchanger 17, a use side air-cooled heat exchanger 118, a compressor 11 and a four-way valve 12;
[0060] The refrigerant circulation loop is specifically:
[0061] The exhaust port of the compressor 11 is connected to the first interface of the four-way valve 12, the second interface of the four-way valve 12 is connected to the first refrigerant inlet and outlet of the water source heat exchanger 14, and the second refrigerant inlet and outlet of the water source heat exchanger 14 passes through the water source The heat exchanger expansion valve 16 is connected to the first refrigerant inlet and outl...
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The invention discloses a control method of a compensation type dual-source heat pump cold and hot air air conditioning unit, which is realized by a compensation type dual source heat pump cold and hot air air conditioning unit, specifically including a refrigeration system, a ventilation system, a compensation type water source system and an automatic control system, refrigeration The system includes a water source heat exchanger, a heat source side air-cooled heat exchanger, a refrigerant circulation loop composed of a side air-cooled heat exchanger, a four-way valve and a compressor. The compensated water source system includes a compensated surface cooler, a water source heat exchange The refrigerant circulation loop on the heat source side is formed by serially connecting the heat exchanger, the buried heat exchange coil, the water pump, and the electric valve of the compensation surface cooler in series, and the bypass electric valve of the compensation surface cooler is set on the heat source side refrigerant circulation loop. The automatic control system controls the coordinated operation of the refrigeration system, ventilation system and compensating water source system to realize six modes of ground source heating, air source heating, ground source cooling, air source cooling, defrosting operation and supplementary heating operation of the unit. It effectively solves the problem that the existing technology cannot provide sufficient heat stably for a long time.
Description
technical field [0001] The invention relates to the technical field of heat pump air conditioners, in particular to a control method for a compensation type dual-source heat pump cold and hot air air conditioner unit. Background technique [0002] At present, there are common ground source heat pump cooling and heating air units, which use the ground source to provide cold and heat sources for the cooling and heating operation of the cooling and heating fan units, and provide cold or hot air for air conditioning. [0003] Generally speaking, the ground source heat pump unit mainly consists of a compressor, a condenser, an evaporator, an expansion valve, and a four-way valve to form a circulation loop. In the cooling state, the high-pressure refrigerant vapor discharged from the compressor flows into the condenser through the four-way valve, the refrigerant vapor is condensed into liquid, enters the evaporator through the expansion valve, and absorbs heat in the evaporator, c...
Claims
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IPC IPC(8): F25B29/00F25B30/06F25B30/02F25B49/02
Inventor 邹志胜欧冠锋朱建章林创辉孙兆军何卫国彭雨王建辉
Owner GUANGDONG SHENLING ENVIRONMENT SYST CO LTD