Photoelectric-thermal integrated air source heat pump system

Abstract

The utility model relates to the technical field of heat pumps, and particularly discloses a photoelectric-thermal integrated air source heat pump system which comprises a PVT assembly, a TK assembly, a compressor, a condensation heat exchanger and a throttling device. An outlet of the PVT assembly is communicated with a working medium inlet of the TK assembly, and a working medium outlet of the TK assembly is communicated with an inlet of the PVT assembly; a refrigerant outlet of the TK assembly communicates with an inlet of the compressor, an outlet of the compressor communicates with an inlet of the condensation heat exchanger, an outlet of the condensation heat exchanger communicates with an inlet of the throttling device, and an outlet of the throttling device communicates with a refrigerant inlet of the TK assembly. The system is simple in design, the PVT assembly converts solar energy into electric energy to supply power to the system, normal operation of the system can be guaranteed without an external power source, energy consumption is effectively reduced, heat generated in the power generation process is used for heating air entering the system, efficiency of the heat pump unit is improved, and self-sufficiency of electric energy and heat energy of the air source heat pump unit is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat pumps, in particular to a photovoltaic and thermal integrated air source heat pump system. Background Art

[0002] The PVT system is a system that integrates solar photovoltaic power generation and solar thermal energy, called a solar photovoltaic and solar thermal cogeneration system, or PVT for short. It consists of two parts: photovoltaic (PV) and solar thermal (PT). The photovoltaic part uses photovoltaic panels to provide the required electricity for the building; the solar thermal part is mainly a collector and a circulating water system, which cools the photovoltaic panels through water circulation to improve the efficiency of photovoltaic power generation. At the same time, the heat energy generated during the photoelectric conversion process is collected and used through heat exchange.

[0003] Air source heat pumps use the reverse Carnot cycle principle, a small amount of electricity as power, and use refrigerants to absorb low-grade heat in the air. Through the compression of the compressor, it converts high-grade heat energy for heating or hot water supply. The working efficiency of air source heat pumps is directly related to the air temperature of the outdoor environment. The higher the air temperature entering the heat pump, the higher the working efficiency, and vice versa.

[0004] At present, heat pump systems usually have many components and complex designs; they need to rely on external power supplies and have high energy consumption; they cannot fully utilize energy and have low efficiency; they also have single functions and limited application scope. Therefore, people in this field are in urgent need of finding a new technical solution to solve the above problems. Utility Model Content

[0005] In view of the technical problems in the prior art, the utility model provides a photovoltaic and thermal integrated air source heat pump system.

[0006] The utility model provides a photovoltaic and thermal integrated air source heat pump system, comprising: a PVT component, a TK component, a compressor, a condensing heat exchanger, and a throttling device, wherein:

[0007] The outlet of the PVT component is connected to the working fluid inlet of the TK component, and the working fluid outlet of the TK component is connected to the inlet of the PVT component; the refrigerant outlet of the TK component is connected to the inlet of the compressor, and the outlet of the compressor is connected to the inlet of the condensing heat exchanger, and the outlet of the condensing heat exchanger is connected to the inlet of the throttling device, and the outlet of the throttling device is connected to the refrigerant inlet of the TK component.

[0008] Furthermore, it also includes an inverter; the PVT component is electrically connected to the inverter, the inverter is electrically connected to the TK component and the compressor, and the inverter is electrically connected to the city power grid.

[0009] Furthermore, the PVT assembly includes a photovoltaic panel and a collector; the photovoltaic panel is on the front side, for receiving solar energy and converting it into electrical energy, and transmitting it to the inverter; the collector is located on the back side of the photovoltaic panel, and performs heat transfer with the photovoltaic panel.

[0010] Furthermore, the TK component includes a fan, which is located at the top of the TK component. Outdoor air enters the TK component and is then output through the fan, so that the heat in the air is transferred to the TK component; the fan is electrically connected to the inverter.

[0011] Furthermore, it also includes a working fluid circulation pump, which is connected to the pipeline between the outlet of the PVT component and the working fluid inlet of the TK component.

[0012] Furthermore, it also includes a four-way reversing valve, which is connected to the pipeline between the outlet of the compressor and the inlet of the condensing heat exchanger, and the four-way reversing valve is communicated with the building air-conditioning equipment.

[0013] Furthermore, the condensing heat exchanger is provided with a heating medium heat exchange channel, and the two ends of the heating medium heat exchange channel are respectively a heating water supply connection port and a heating return water connection port.

[0014] Furthermore, the TK component, the compressor, the condensing heat exchanger, the throttling device, and the inverter are integrated into an air source heat pump unit, and a box is provided outside the air source heat pump unit.

[0015] Furthermore, the upper portion of the box body is provided with ventilation mesh holes, and the lower portion is provided with an openable and closable door.

[0016] The photovoltaic-thermal integrated air source heat pump system provided by the utility model has at least the following beneficial effects:

[0017] (1) The utility model includes a PVT component, a TK component, a compressor, a condensing heat exchanger and a throttling device, which realizes the functions of autonomous power supply, heating and cooling, and has a small number of components and a simple design;

[0018] (2) After absorbing solar energy, the PVT component of the utility model can convert solar energy into electrical energy for powering the fan and compressor, thus ensuring the normal operation of the system without the need for an external power supply, effectively reducing energy consumption; the excess electrical energy can also be transmitted to the city power grid. When there is no solar energy available at night, the system can use the electrical energy in the city power grid for power supply;

[0019] (3) In the present invention, outdoor air can enter the TK component. After the heat generated by the PVT component is transferred to the TK component, part of the heat is used to vaporize the low-temperature and low-pressure refrigerant in the TK component into high-temperature and low-pressure refrigerant; another part of the heat is used to heat the air. During the vaporization process, the low-temperature and low-pressure refrigerant can exchange heat with the heated air, which fully utilizes energy and improves work efficiency.

[0020] (4) The condensing heat exchanger of the utility model is provided with a heating medium heat exchange channel, and the heat generated in the process of high-temperature and high-pressure refrigerant cooling and condensing into low-temperature and high-pressure refrigerant is used to heat the user through the heating water supply connection port; the system also includes a four-way reversing valve, which is arranged between the compressor and the condensing heat exchanger, and can change the flow direction of the refrigerant, and realize the refrigeration function through the building air conditioning equipment, which can meet the different needs of users and expand the scope of application;

[0021] (5) In the utility model, the TK component, the compressor, the condensing heat exchanger, the throttling device, and the inverter are integrated into an air source heat pump unit. A box is provided on the outside of the air source heat pump unit to form an integrated device, which is easy to carry and can be widely promoted and applied. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a structural diagram of a photovoltaic-thermal integrated air source heat pump system of the utility model;

[0024] Figure 2 This is a structural diagram of an air source heat pump unit of a photovoltaic and thermal integrated air source heat pump system of the utility model;

[0025] Among them: 10-PVT component, 20-TK component, 30-compressor, 40-condensing heat exchanger, 50-throttling device, 60-inverter, 70-working fluid circulation pump, 80-four-way reversing valve, 90-air source heat pump unit. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the protection scope of the utility model.

[0027] The utility model is a photovoltaic and thermal integrated air source heat pump system, such as Figure 1 As shown, it includes: a PVT component 10, a TK component 20, a compressor 30, a condensing heat exchanger 40, and a throttling device 50, wherein:

[0028] The outlet of the PVT component 10 is connected to the working fluid inlet of the TK component 20, and the working fluid outlet of the TK component 20 is connected to the inlet of the PVT component 10; the refrigerant outlet of the TK component 20 is connected to the inlet of the compressor 30, and the outlet of the compressor 30 is connected to the inlet of the condensing heat exchanger 40, and the outlet of the condensing heat exchanger 40 is connected to the inlet of the throttling device 50, and the outlet of the throttling device 50 is connected to the refrigerant inlet of the TK component 20.

[0029] The heat pump system in the embodiment of the utility model has a small number of components and a simple design; after the PVT component 10 absorbs solar energy, it can convert the solar energy into electrical energy for powering the system. The normal operation of the system can be ensured without an external power supply, effectively reducing energy consumption.

[0030] In the embodiment of the utility model, the system can be used to realize the function of heating. When the PVT component 10 absorbs solar energy, the heat generated is transferred from the outlet of the PVT component 10 to the TK component 20 through the working medium inlet of the TK component 20 by the working medium in the pipeline. After the TK component 20 absorbs the heat, the low-temperature and low-pressure refrigerant in the TK component 20 is gasified into a high-temperature and low-pressure refrigerant. The high-temperature and low-pressure refrigerant is transferred from the refrigerant outlet of the TK component 20 to the compressor 30 through the inlet of the compressor 30; the compressor 30 compresses the high-temperature and low-pressure refrigerant into a high-temperature and high-pressure refrigerant. The high-temperature and high-pressure refrigerant is transferred from the compressor 30 to the compressor 30. The outlet of the machine 30 is transferred to the condensing heat exchanger 40 through the inlet of the condensing heat exchanger 40; the condensing heat exchanger 40 cools and condenses the high-temperature and high-pressure refrigerant into a low-temperature and high-pressure refrigerant, and the heat in the cooling and condensing process is used for heating, and then the low-temperature and high-pressure refrigerant is transferred from the outlet of the condensing heat exchanger 40 to the throttling device 50 through the inlet of the throttling device 50; the throttling device 50 throttles the low-temperature and high-pressure refrigerant into a low-temperature and low-pressure refrigerant, and the low-temperature and low-pressure refrigerant is transferred from the outlet of the throttling device 50 back to the TK component 20 through the refrigerant inlet of the TK component 20, forming a circulation loop, which can provide continuous heating.

[0031] In the embodiment of the utility model, outdoor air can enter the TK component 20, and part of the heat absorbed by the TK component 20 is used to heat the air and increase the air temperature. In the process of low-temperature and low-pressure refrigerant vaporizing into high-temperature and low-pressure refrigerant, the low-temperature and low-pressure refrigerant can also exchange heat with the heated air, thereby making full use of energy and improving work efficiency.

[0032] The photovoltaic-thermal integrated air source heat pump system in the embodiment of the utility model utilizes solar energy and air energy for power supply and heating, making full use of renewable resources in nature, with high energy utilization rate and significant energy-saving and carbon reduction effects. It can improve the photovoltaic power generation efficiency by more than 10% and the heating performance of the air source heat pump by 5% to 15%, thus achieving self-sufficiency in electricity and heat energy and having wide applicability.

[0033] Specifically, Figure 1 As shown, the photovoltaic-thermal integrated air source heat pump system of the embodiment of the utility model also includes an inverter 60; the PVT component 10 is electrically connected to the inverter 60, the inverter 60 is electrically connected to the TK component 20 and the compressor 30, and the inverter 60 is electrically connected to the city power grid.

[0034] In the embodiment of the utility model, after the PVT component 10 converts solar energy into electrical energy, the electrical energy is transmitted to the inverter 60, and the inverter 60 converts direct current into alternating current. Part of the electrical energy is transmitted to the TK component 20 and the compressor 30 for powering the TK component 20 and the compressor 30; the other part of the excess electrical energy is transmitted to the city power grid. When there is no solar energy available at night, the system can use the electrical energy in the city power grid for power supply.

[0035] Specifically, Figure 1 As shown, the PVT assembly 10 includes a photovoltaic panel and a collector; the photovoltaic panel is on the front side, for receiving solar energy and converting it into electrical energy, and transmitting it to the inverter 60, and the collector is located on the back side of the photovoltaic panel and conducts heat transfer with the photovoltaic panel.

[0036] Specifically, Figure 1 As shown, the TK component 20 includes a fan, which is located at the top of the TK component 20 and provides power for air transportation. Outdoor air enters the TK component 20 and is output through the fan, so that the heat in the air is transferred to the TK component 20; the fan is electrically connected to the inverter 60, and the inverter 60 provides the required electrical energy to the fan.

[0037] Specifically, Figure 1 As shown, a working medium circulation pump 70 is also included, and the working medium circulation pump 70 is connected to the pipeline between the outlet of the PVT component 10 and the working medium inlet of the TK component 20. The addition of the working medium circulation pump 70 can continuously transfer the working medium to the TK component 20. In addition to taking away heat, the flow of the working medium can also reduce the back plate temperature of the photovoltaic panel, thereby improving the power generation efficiency of the photovoltaic panel.

[0038] Specifically, Figure 1 As shown, a four-way reversing valve 80 is also included. The four-way reversing valve 80 is connected to the pipeline between the outlet of the compressor 30 and the inlet of the condensing heat exchanger 40, and the four-way reversing valve 80 is communicated with the building air conditioning equipment.

[0039] In the embodiment of the utility model, the four-way reversing valve 80 can change the flow direction of the refrigerant, and realize the refrigeration function through the building air-conditioning equipment, which can meet the different needs of users and expand the scope of application.

[0040] Specifically, Figure 1 As shown, the condensing heat exchanger 40 is provided with a heating medium heat exchange channel, and the two ends of the heating medium heat exchange channel are respectively a heating water supply connection port and a heating return water connection port. The heat generated in the process of high-temperature and high-pressure refrigerant cooling and condensing into low-temperature and high-pressure refrigerant is provided to the user through the heating water supply connection port for heating.

[0041] Specifically, Figure 1 and Figure 2 As shown, the TK component 20, the compressor 30, the condensing heat exchanger 40, the throttling device 50, and the inverter 60 are integrated into an air source heat pump unit 90. The air source heat pump unit 90 is provided with a box body on the outside to form an integrated device, which is easy to carry and can be widely promoted and applied.

[0042] Specifically, Figure 2 As shown, the upper part of the box body is provided with ventilation mesh holes, and the lower part is provided with an openable and closable box door. The ventilation mesh holes are used for ventilation to reduce the heat inside the box body, and the openable and closable box door is convenient for adjusting the equipment inside the air source heat pump unit 90.

[0043] The utility model is further described above with the help of specific embodiments, but it should be understood that the specific description here should not be construed as limiting the essence and scope of the utility model. Various modifications made to the above embodiments by ordinary technicians in this field after reading this specification are all within the scope of protection of the utility model.

Claims

1. A photovoltaic and thermal integrated air source heat pump system, characterized in that: include: PVT components, TK components, compressors, condensing heat exchangers, throttling devices, including: The outlet of the PVT component is connected to the working fluid inlet of the TK component, and the working fluid outlet of the TK component is connected to the inlet of the PVT component; the refrigerant outlet of the TK component is connected to the inlet of the compressor, and the outlet of the compressor is connected to the inlet of the condensing heat exchanger, and the outlet of the condensing heat exchanger is connected to the inlet of the throttling device, and the outlet of the throttling device is connected to the refrigerant inlet of the TK component.

2. The photovoltaic-thermal integrated air source heat pump system according to claim 1, characterized in that: It also includes an inverter; the PVT component is electrically connected to the inverter, the inverter is electrically connected to the TK component and the compressor, and the inverter is electrically connected to the city power grid.

3. The photovoltaic-thermal integrated air source heat pump system according to claim 2, characterized in that: The PVT assembly includes a photovoltaic panel and a collector; the photovoltaic panel is on the front side, used to receive solar energy and convert it into electrical energy, and transmit it to the inverter; the collector is located on the back side of the photovoltaic panel and performs heat transfer with the photovoltaic panel.

4. The photovoltaic-thermal integrated air source heat pump system according to claim 2, characterized in that: The TK component includes a fan, which is located at the top of the TK component. Outdoor air enters the TK component and is then output through the fan, so that the heat in the air is transferred to the TK component; the fan is electrically connected to the inverter.

5. The photovoltaic-thermal integrated air source heat pump system according to claim 1, characterized in that: It also includes a working fluid circulation pump, which is connected to a pipeline between the outlet of the PVT component and the working fluid inlet of the TK component.

6. The photovoltaic-thermal integrated air source heat pump system according to claim 1, characterized in that: It also includes a four-way reversing valve, which is connected to the pipeline between the outlet of the compressor and the inlet of the condensing heat exchanger, and the four-way reversing valve is communicated with the building air conditioning equipment.

7. The photovoltaic-thermal integrated air source heat pump system according to claim 1, characterized in that: The condensing heat exchanger is provided with a heating medium heat exchange channel, and the two ends of the heating medium heat exchange channel are respectively a heating water supply connection port and a heating return water connection port.

8. The photovoltaic-thermal integrated air source heat pump system according to claim 1, characterized in that: The TK component, the compressor, the condensing heat exchanger, the throttling device, and the inverter are integrated into an air source heat pump unit, and a box is provided outside the air source heat pump unit.

9. The photovoltaic-thermal integrated air source heat pump system according to claim 8, characterized in that: The upper part of the box body is provided with ventilation mesh holes, and the lower part is provided with an openable and closable box door.

Images