Heat pump system achieving double-medium PVT coupling nocturnal radiation, control method and intelligent household electrical appliance

Abstract

The invention provides a heat pump system achieving double-medium PVT coupling nocturnal radiation, a control method and an intelligent household electrical appliance. The heat pump system comprises afirst heat exchanger, an electronic expansion valve, an air source heat exchanger, a four-way reversing valve, a compressor, a PVT assembly and a heat storage water tank. The first heat exchanger isconnected with the compressor through the four-way reversing valve. The air 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 electronic expansion valve is arranged on a connecting pipeline of the air source heat exchanger and the first heat exchanger. The PVT assembly is connected with the air source heat exchanger and connected with the heat storage water tank. According to the heat pump system achieving double-medium PVT coupling nocturnal radiation, the control method and the intelligent household electrical appliance, by means of control of different operation modes, the functions of power generation, heating, refrigerating and hot water making are achieved; main energy of the systemis from solar radiation energy, long wave radiant energy in the sky and air energy, natural energy is fully utilized, and system energy consumption is reduced.

Description

technical field

[0001] The invention relates to the technical field of PVT heat pumps, in particular to a dual-medium PVT coupled nighttime radiation heat pump system, control method and smart home appliance. 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) technology has received...

Examples

Embodiment 1

[0020] Embodiment 1: A heat pump system with double-medium PVT coupled with nighttime radiation.

[0021] A dual-medium PVT coupled heat pump system for nighttime radiation, including a first heat exchanger, an electronic expansion valve, an air source heat exchanger, a four-way reversing valve, a compressor, a PVT assembly, and a heat storage tank. The heat exchanger is connected to the compressor through the four-way reversing valve, the air source heat exchanger is connected to the four-way reversing valve, and the air source heat exchanger is connected to the first heat exchanger , the electronic expansion valve is arranged on the connecting pipeline between the air source heat exchanger and the first heat exchanger, the PVT assembly is connected with the air source heat exchanger, and the PVT assembly is connected with the heat storage tank. PVT components include air channels and liquid channels, and the night radiation function is coupled to the PVT components. By combi...

Embodiment 2

[0022] Embodiment 2: A heat pump control method with double-medium PVT coupled with nighttime radiation.

[0023] A heat pump control method with double-medium PVT coupling nighttime radiation, the specific steps are as follows:

[0024] In the cooling mode, the daytime operation mode, the PVT assembly 6 is used for making hot water, and the air source heat exchanger 3 is used for cooling. The circulating water enters the heat storage tank 7 after absorbing heat in the PVT assembly 6, and stores the heat in the water tank for use by users. The refrigerant in the first heat exchanger 1 absorbs the heat of the room and enters the compressor 5 through the four-way reversing valve 4 for compression, and then enters the air source heat exchanger 3 to release heat, and then enters the first refrigerant through the electronic expansion valve 5 again after heat release. Heat exchanger 1 performs the next cycle.

[0025] The PVT module has separate air passages and liquid passages. ...

Embodiment 3

[0026] Embodiment 3: A heat pump control method with double-medium PVT coupled with nighttime radiation.

[0027] A heat pump control method with double-medium PVT coupling nighttime radiation, the specific steps are as follows:

[0028] In the cooling mode, the night operation mode, the PVT assembly 6 is used to produce cold air, and the air source heat exchanger 3 is used for refrigeration. The refrigerant in the first heat exchanger 1 absorbs the heat of the room and enters the compressor 5 through the four-way reversing valve 4 for compression, and then enters the air source heat exchanger 3 to release heat, and then enters the first air source heat exchanger 2 again through the electronic expansion valve 2 Heat exchanger 1 performs the next cycle. The cold air produced by the PVT assembly 6 leads to the air source heat exchanger 3 for exchanging heat with the refrigerant to reduce the fan energy consumption of the air source heat exchanger 3 .

[0029] When the PVT modu...

technical field

[0001] The invention relates to the technical field of PVT heat pumps, in particular to a dual-medium PVT coupled nighttime radiation heat pump system, control method and smart home appliance. 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) technology has received...

Examples

Embodiment 1

[0020] Embodiment 1: A heat pump system with double-medium PVT coupled with nighttime radiation.

[0021] A dual-medium PVT coupled heat pump system for nighttime radiation, including a first heat exchanger, an electronic expansion valve, an air source heat exchanger, a four-way reversing valve, a compressor, a PVT assembly, and a heat storage tank. The heat exchanger is connected to the compressor through the four-way reversing valve, the air source heat exchanger is connected to the four-way reversing valve, and the air source heat exchanger is connected to the first heat exchanger , the electronic expansion valve is arranged on the connecting pipeline between the air source heat exchanger and the first heat exchanger, the PVT assembly is connected with the air source heat exchanger, and the PVT assembly is connected with the heat storage tank. PVT components include air channels and liquid channels, and the night radiation function is coupled to the PVT components. By combi...

Embodiment 2

[0022] Embodiment 2: A heat pump control method with double-medium PVT coupled with nighttime radiation.

[0023] A heat pump control method with double-medium PVT coupling nighttime radiation, the specific steps are as follows:

[0024] In the cooling mode, the daytime operation mode, the PVT assembly 6 is used for making hot water, and the air source heat exchanger 3 is used for cooling. The circulating water enters the heat storage tank 7 after absorbing heat in the PVT assembly 6, and stores the heat in the water tank for use by users. The refrigerant in the first heat exchanger 1 absorbs the heat of the room and enters the compressor 5 through the four-way reversing valve 4 for compression, and then enters the air source heat exchanger 3 to release heat, and then enters the first refrigerant through the electronic expansion valve 5 again after heat release. Heat exchanger 1 performs the next cycle.

[0025] The PVT module has separate air passages and liquid passages. ...

Embodiment 3

[0026] Embodiment 3: A heat pump control method with double-medium PVT coupled with nighttime radiation.

[0027] A heat pump control method with double-medium PVT coupling nighttime radiation, the specific steps are as follows:

[0028] In the cooling mode, the night operation mode, the PVT assembly 6 is used to produce cold air, and the air source heat exchanger 3 is used for refrigeration. The refrigerant in the first heat exchanger 1 absorbs the heat of the room and enters the compressor 5 through the four-way reversing valve 4 for compression, and then enters the air source heat exchanger 3 to release heat, and then enters the first air source heat exchanger 2 again through the electronic expansion valve 2 Heat exchanger 1 performs the next cycle. The cold air produced by the PVT assembly 6 leads to the air source heat exchanger 3 for exchanging heat with the refrigerant to reduce the fan energy consumption of the air source heat exchanger 3 .

[0029] When the PVT modu...

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