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A dual-source composite heat pump system with pvt coupled nighttime radiation, control method and smart home appliance

A control method and composite technology, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of unable to meet the stable needs of users, reduce the use efficiency, and the energy source of PV/T system fluctuates greatly, and achieve Improve equipment utilization and space utilization, low energy efficiency, and reduce system energy consumption

Active Publication Date: 2020-12-11
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the impact of day and night, the PV / T system is idle at night, which greatly reduces its efficiency
On the other hand, the energy source of the PV / T system fluctuates greatly, which cannot meet the stable needs of users

Method used

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  • A dual-source composite heat pump system with pvt coupled nighttime radiation, control method and smart home appliance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025]Embodiment 1: A dual-source composite heat pump system with PVT coupled with nighttime radiation.

[0026] A dual-source composite heat pump system with PVT coupled with nighttime radiation, including a first heat exchanger 1, an air source heat exchanger 3, a water source heat exchanger 4, a four-way reversing valve 5, a compressor 6, a PVT component 7, Heat storage tank 8, electronic expansion valve group, solenoid valve group and water pump 10, the first heat exchanger 1 is connected to the compressor 6 through the four-way reversing valve 5, and the air source heat exchanger 3 It is connected with the four-way reversing valve 5, the water source heat exchanger 4 is connected with the four-way reversing valve 5, the air source heat exchanger 3 is connected with the first heat exchanger 1, and the The water source heat exchanger 4 is connected to the first heat exchanger 1, the electronic expansion valve group is used to control the flow of refrigerant, and the water s...

Embodiment 2

[0030] Embodiment 2: A dual-source composite heat pump control method with PVT coupled with nighttime radiation.

[0031] A dual-source composite heat pump control method with PVT coupled with nighttime radiation, the specific steps are as follows:

[0032] Under cooling conditions, when it is detected that the solar radiation energy is sufficient to meet the user's domestic hot water needs, only the air source heat exchanger 3 is operated, and the heat absorbed by the PVT module 7 is transferred to the hot water storage tank 8 for the user's daily needs. The refrigerant in the first heat exchanger 1 absorbs the heat of the room and enters the compressor 6 through the four-way reversing valve 5 for compression, and then enters the air source heat exchanger 3 through the second electromagnetic valve 902 to release heat, and then passes through the second The electronic expansion valve 202 enters the first heat exchanger 1 again for the next cycle.

Embodiment 3

[0033] Embodiment 3: A dual-source composite heat pump control method with PVT coupled with nighttime radiation.

[0034] A dual-source composite heat pump control method with PVT coupled with nighttime radiation, the specific steps are as follows:

[0035] Under cooling conditions, when it is detected that the solar radiation energy is insufficient, only part of the domestic hot water can be satisfied, and the other part of the heat is provided by the water source heat exchanger. The air source heat exchanger 3 and the water source heat exchanger 4 are operated, and the PVT component 7 provides part of the heat. The heat is supplied to the hot water storage tank 8, and the remaining heat is supplied by the water source heat exchanger 4. At this time, the refrigerant in the first heat exchanger 1 absorbs the heat in the room and enters the compressor 6 through the four-way reversing valve 5 to be compressed, and then enters the water source heat exchanger 4 through the third s...

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Abstract

The invention provides a dual-source composite heat pump system with PVT coupling night radiation, a control method and an intelligent home appliance, including a first heat exchanger, an air source heat exchanger, a water source heat exchanger, a four-way reversing valve, and a compressor , PVT assembly, heat storage tank, electronic expansion valve group, solenoid valve group and water pump, the first heat exchanger is connected to the compressor through the four-way reversing valve, and the air source heat exchanger is connected to the The four-way reversing valve is connected, the water source heat exchanger is connected with the four-way reversing valve, the air source heat exchanger is connected with the first heat exchanger, and the water source heat exchanger is connected with the The first heat exchanger is connected, the water source heat exchanger is connected with the water pump and the heat storage tank in sequence, the PVT assembly is connected with the heat storage tank in parallel, and the solenoid valve group is used to control the refrigerant and water respectively. The flow direction; the present invention realizes the functions of heating, cooling, hot water supply and power supply at different times, while improving the utilization rate of natural energy and reducing energy consumption of the system.

Description

technical field [0001] The invention relates to the technical field of PVT heat pumps, in particular to a dual-source composite heat pump system with PVT coupled with nighttime radiation, a control method and smart home appliances. Background technique [0002] Radiation cooling refers to a passive cooling method in which objects on the ground exchange heat with outer space at a very low temperature through the 8μm~13μm band of one of the "atmospheric windows" to achieve a certain cooling effect. Radiant cooling has the advantages of zero energy consumption, zero pollution, and no moving parts, and is of positive significance to building air conditioning, energy saving, and environmental protection. However, radiation refrigeration also has defects such as insufficient power, which leads to high device cost, and the radiation refrigeration device is difficult to achieve cooling effect during the day. [0003] Solar photovoltaic photothermal comprehensive utilization (PV / T) ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B13/00F25B41/06F25B23/00F25B49/02F25B41/34
CPCF25B13/00F25B23/00F25B49/02F25B41/31Y02B30/70
Inventor 荆莹吴一梅柯彬彬尚瑞
Owner GREE ELECTRIC APPLIANCES INC
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