CN220750399U - Photovoltaic heat pump system - Google Patents

Abstract

The utility model discloses a photovoltaic heat pump system, which comprises a photovoltaic panel radiator, a hot water unit, a hot water tank and a photovoltaic panel, wherein the photovoltaic panel radiator is arranged on the hot water unit; the photovoltaic panel is arranged on the photovoltaic panel radiator; the water heater unit comprises a plurality of water heaters, wherein each water heater comprises an evaporator, a compressor, a condenser and a throttle valve which are sequentially connected, and the throttle valve and the evaporator form a closed loop for refrigerant circulation; the evaporator is connected with the photovoltaic panel radiator and exchanges heat, and the condenser is connected with the hot water tank and exchanges heat. The utility model exchanges heat with the hot water tank through the condenser of the hot water unit, the evaporator exchanges heat with the photovoltaic panel radiator, waste heat generated in the power generation process of the photovoltaic panel is recovered and used for heating the hot water tank, so that the energy is saved, the temperature of the photovoltaic panel is reduced, and the power generation efficiency of the photovoltaic panel is effectively ensured.

Description

Photovoltaic heat pump system

Technical Field

The utility model belongs to the field of photovoltaic water heaters, and particularly relates to a photovoltaic heat pump system.

Background

The photovoltaic water heater is called as photovoltaic central water heater for short. The photoelectric energy water heater is characterized in that the electric energy converted by sunlight is applied to hot water, the water is heated by the photovoltaic electric heating rod so as to supply hot water and heat, the cost of consumed energy is low, and the solar energy water heater is only matched with less valley electricity to carry out complementary heating in overcast and rainy days, is environment-friendly and energy-saving, and is an incomparable substitute product of the traditional solar energy water heater, balcony wall-mounted solar energy water heating system, air source water heater and electric water heater.

However, when the silicon solar cell works at a higher temperature, the open-circuit voltage is greatly reduced along with the temperature rise, and meanwhile, the serious deviation of a charging working point is caused, so that the system is easily damaged due to insufficient charging; the output power of the silicon solar cell also drops greatly with the rise of temperature, so that the solar cell module cannot fully exert the maximum performance.

That is, as the temperature increases, the photovoltaic module may decrease the output power, and the efficiency of power generation may decrease. Generally, the most suitable temperature range is between 20℃and 25 ℃. When the temperature rises above 30 ℃, the power generation efficiency of the solar panel starts to decrease; and when the temperature is lowered below 0 c, the efficiency of the solar panel is also affected. Therefore, in the use and installation of the solar panel, the temperature factors are needed to be fully considered, and corresponding measures are taken to reduce the temperature and improve the power generation efficiency of the solar panel.

Most of photovoltaic water heaters in the prior art convert solar energy into electric energy and then heat water in a hot water tank, and the problems of large energy loss and low heating efficiency and low power generation efficiency of a photovoltaic panel at the outside weather of more than 30 ℃ can not be solved after the solar energy is converted twice.

Disclosure of Invention

The utility model aims to solve the problems of low hot water heating efficiency and low power generation efficiency of a photovoltaic panel at high temperature in the prior art.

The technical scheme adopted by the utility model is as follows:

a photovoltaic heat pump system comprises a photovoltaic panel radiator, a hot water unit, a hot water tank and a photovoltaic panel; the photovoltaic panel is arranged on the photovoltaic panel radiator; the water heater unit comprises a plurality of water heaters, wherein each water heater comprises an evaporator, a compressor, a condenser and a throttle valve which are sequentially connected, and the throttle valve and the evaporator form a closed loop for refrigerant circulation; the evaporator is connected with the photovoltaic panel radiator and exchanges heat, and the condenser is connected with the hot water tank and exchanges heat.

Alternatively, the evaporator and the condenser are shell-and-tube heat exchangers, refrigerant circulates in the tube side of the evaporator, and the shell side of the evaporator cools the photovoltaic panel radiator through the condensate; the tube side of the condenser is circulated with a refrigerant, the shell side of the condenser is connected with the inner cavity of the hot water tank, and the condenser is used for heating water in the hot water tank.

Optionally, the shell side inlet end of the evaporator is connected with the photovoltaic panel radiator through a condensate water outlet pipeline, and a condensate water outlet regulating valve, a buffer tank, a condensate drain valve, a condensate pump, a condensate Y-type filter and a condensate total regulating valve which are sequentially connected are arranged on the condensate water outlet pipeline, and the condensate water outlet regulating valve is arranged at one end close to the photovoltaic panel radiator.

Optionally, the shell side outlet end of the evaporator is connected with the photovoltaic plate radiator through a condensate water inlet pipeline, and a condensate water source switch and a condensate water inlet regulating valve are arranged on the condensate water inlet pipeline.

Optionally, a condensate water supplementing regulating valve and an exhaust valve are connected to the buffer tank.

Optionally, the shell side inlet end of the condenser is connected with the hot water tank through a hot water outlet pipeline, the hot water outlet pipeline is provided with a hot water outlet regulating valve, a hot water drain valve, a hot water pump, a hot water Y-shaped filter and a hot water total regulating valve which are sequentially connected, the hot water outlet regulating valve is arranged at one end close to the hot water tank, and the hot water outlet pipeline is used for outputting hot water in the hot water tank.

Optionally, the shell side outlet end of the condenser is connected with the hot water tank through a hot water inlet pipeline, and the hot water inlet pipeline is provided with a hot water inlet regulating valve and a hot water source switch.

Alternatively, the hot water tank is connected with a hot water pipe and a tap water pipe, the hot water pipe is used for outputting hot water in the hot water tank to the outside, and the hot water pipe is provided with a hot water pump and a hot water regulating valve; the tap water pipe is used for supplementing cold water into the hot water tank, and is provided with a tap water supplementing regulating valve and a tap water inlet pump; the hot water tank is also provided with a thermometer and a liquid level meter, the thermometer is electrically connected with the hot water unit and the tap water inlet pump, and the liquid level meter is electrically connected with the tap water inlet pump.

Optionally, the hot water tank is also connected with a hot water return pipeline, and the hot water return pipeline is provided with a hot water return pump and a hot water return regulating valve.

Optionally, the photovoltaic panel radiator comprises a plurality of radiating units and a mounting frame, wherein the radiating units are mounted on the mounting frame, and the photovoltaic panels are mounted on the radiating units; the heat dissipation unit comprises a plurality of fin radiators which are connected in parallel, each fin radiator comprises a plurality of fins and a pipeline installation groove, a condensate water inlet pipeline is simultaneously connected with the inlet ends of a plurality of condensate branch pipes, the outlet ends of the condensate branch pipes are connected with a condensate water outlet pipeline, and condensate branch pipes are clamped in the pipeline installation grooves.

The beneficial effects of the utility model are as follows:

the utility model provides a photovoltaic heat pump system, which comprises a photovoltaic panel radiator, a hot water unit, a hot water tank and a photovoltaic panel, wherein the photovoltaic panel radiator is arranged on the hot water unit; the photovoltaic panel is arranged on the photovoltaic panel radiator; the water heater unit comprises a plurality of water heaters, wherein each water heater comprises an evaporator, a compressor, a condenser and a throttle valve which are sequentially connected, and the throttle valve and the evaporator form a closed loop for refrigerant circulation; the evaporator is connected with the photovoltaic panel radiator and exchanges heat, and the condenser is connected with the hot water tank and exchanges heat. The temperature of the photovoltaic panel is reduced by arranging a photovoltaic panel radiator which is in direct contact with the photovoltaic panel, and a hot water unit is introduced between the photovoltaic panel radiator and a hot water tank; when the hot water unit works, the compressor conveys the refrigerant into the condenser in a high-temperature and high-pressure gas form, the refrigerant becomes liquid in the condenser due to pressure reduction and releases a large amount of heat, and the heat released in the condenser exchanges heat with water in the hot water tank, so that the water in the hot water tank is heated; the liquid refrigerant output from the condenser enters the evaporator through the throttle valve, a large amount of heat is absorbed in the evaporator and then is changed into gas, and the temperature of the photovoltaic panel radiator is reduced after heat exchange with the evaporator, so that the photovoltaic panel is cooled, and the temperature of the photovoltaic panel is kept in the temperature range with highest power generation efficiency. According to the utility model, the condenser of the hot water unit exchanges heat with the hot water tank, the evaporator exchanges heat with the photovoltaic panel radiator, so that the surplus heat in the power generation process of the photovoltaic panel is effectively recovered and used for heating the refrigerant, the power loss of the compressor in heating the refrigerant can be reduced, and the heat pump is indirectly used for heating the hot water tank; meanwhile, the electric quantity generated by the photovoltaic panel can be stored by an energy storage device such as a battery, and the like, so that the hot water tank can be heated or used by the user.

The utility model recovers the waste heat generated in the power generation process of the photovoltaic panel and is used for heating the hot water tank, saves energy and reduces the temperature of the photovoltaic panel at the same time, thereby effectively ensuring the power generation efficiency of the photovoltaic panel,

drawings

Fig. 1 is a schematic diagram of the connection relationship of the present utility model.

FIG. 2 is a schematic diagram of the connection relationship between a plurality of water heaters and a plurality of heat dissipating units when they are used in combination.

FIG. 3 is a schematic diagram of a specific connection between a water heater and a photovoltaic panel radiator and a hot water tank.

Fig. 4 is a schematic side view of a heat dissipating unit.

Fig. 5 is a schematic rear view of the heat dissipating unit.

Fig. 6 is a schematic structural view of a fin radiator.

In the figure: the solar energy heat pump type solar energy heat pump radiator comprises a 1-photovoltaic panel radiator, 11-heat radiating units, 111-fin radiator, 1111-fins, 1112-pipeline mounting grooves, 12-mounting racks, a 2-condensate water outlet pipeline, a 21-condensate water outlet regulating valve, a 22-buffer tank, a 221-condensate water supplementing regulating valve, a 222-exhaust valve, a 23-condensate water outlet valve, a 24-condensate pump, a 25-condensate Y-shaped filter, a 26-condensate total regulating valve, a 3-condensate water inlet pipeline, a 31-condensate water source switch, a 32-condensate water inlet regulating valve, a 4-air conditioning unit, a 41-evaporator, a 42-compressor, a 43-condenser, a 44-throttle valve, a 5-hot water outlet pipeline, a 51-hot water source switch, a 52-hot water regulating valve, a 6-hot water tank, a 7-hot water outlet regulating valve, a 71-hot water outlet regulating valve, a 72-hot water outlet valve, a 73-hot water pump, a 74-hot water Y-shaped filter, a 75-hot water total regulating valve and an 8-photovoltaic panel.

Detailed Description

Embodiment one:

in the present embodiment, a photovoltaic heat pump system as shown in fig. 1 and 3 includes a photovoltaic panel radiator 1, a hot water unit 4, a hot water tank 6, and a photovoltaic panel 8; the photovoltaic panel 8 is mounted on the photovoltaic panel heat sink 1; the hot water unit 4 comprises a plurality of hot water machines, wherein the hot water machines comprise an evaporator 41, a compressor 42, a condenser 43 and a throttle valve 44 which are sequentially connected, and the throttle valve 44 and the evaporator 41 form a closed loop for refrigerant circulation; the evaporator 41 is connected to the photovoltaic panel radiator 1 and exchanges heat, and the condenser 43 is connected to the hot water tank 6 and exchanges heat. By arranging a photovoltaic panel radiator 1 in direct contact below the photovoltaic panel 8, the temperature of the photovoltaic panel 8 is reduced, while a hot water unit 4 is introduced between the photovoltaic panel radiator 1 and the hot water tank 6; when the hot water unit 4 works, the compressor 42 conveys the refrigerant into the condenser 43 in a high-temperature and high-pressure gas form, the refrigerant becomes liquid in the condenser 43 due to pressure reduction and releases a large amount of heat, and the heat released in the condenser 43 exchanges heat with water in the hot water tank 6, so that the water in the hot water tank 6 is heated; the liquid refrigerant output from the condenser 43 enters the evaporator 41 through the throttle valve 44, and is changed into gas after absorbing a large amount of heat in the evaporator 41, and the temperature of the photovoltaic panel radiator 1 after exchanging heat with the evaporator 44 is absorbed by the evaporator 41, so that the effect of cooling the photovoltaic panel 8 is achieved, and the temperature of the photovoltaic panel 8 is kept in the temperature range with highest power generation efficiency. According to the utility model, the condenser 43 of the hot water unit 4 exchanges heat with the hot water tank 6, the evaporator 41 exchanges heat with the photovoltaic panel radiator 1, so that the surplus heat in the power generation process of the photovoltaic panel 8 is effectively recovered and used for heating the refrigerant, the power loss of the compressor 42 in heating the refrigerant can be reduced, and the heat is indirectly used for heating the hot water tank 6; meanwhile, the electric quantity generated by the photovoltaic panel 8 can be stored by an energy storage device such as a battery, and the like, so that the hot water tank 6 can be heated or used by the user.

In this embodiment, the refrigerant circulating in the hot water unit 4 is R22 or other common fluoride cooling medium.

In this embodiment, the condensate is water or other liquid medium with high specific heat capacity and high heat exchange efficiency.

Embodiment two:

the embodiment provides an alternative scheme for the specific structure of the water heater on the basis of the first embodiment.

In this embodiment, the evaporator 41 and the condenser 43 are both shell-and-tube heat exchangers, the tube side of the evaporator 41 is circulated with a refrigerant, and the shell side of the evaporator 41 cools the photovoltaic panel radiator 1 by the condensate; the tube side of the condenser 43 is circulated with a refrigerant, the shell side of the condenser 43 is connected with the inner cavity of the hot water tank 6, the condenser 43 is used to heat the water in the hot water tank 6. The tube side of the evaporator 41, the compressor 42, the condenser 43, and the throttle valve 44 are communicated to form a closed loop. The heat exchange in the evaporator 41 and the condenser 43 is performed through the side wall of the tube side.

In other embodiments, the evaporator 41 and condenser 43 may also be tube-sheet heat exchangers.

Embodiment III:

the embodiment provides an alternative to the connection mode between the evaporator and the photovoltaic panel radiator on the basis of any embodiment.

In this embodiment, as shown in fig. 1, the shell side inlet end of the evaporator 41 is connected with the photovoltaic panel radiator 1 through a condensate outlet pipeline 2, a condensate outlet regulating valve 21, a buffer tank 22, a condensate drain valve 23, a condensate pump 24, a condensate Y-type filter 25 and a condensate total regulating valve 26 which are sequentially connected are arranged on the condensate outlet pipeline 2, the condensate outlet regulating valve 21 is arranged at one end close to the photovoltaic panel radiator 1, the shell side outlet end of the evaporator 41 is connected with the photovoltaic panel radiator 1 through a condensate inlet pipeline 3, and a condensate water source switch 31 and a condensate inlet regulating valve 32 are arranged on the condensate inlet pipeline 3. The photovoltaic panel radiator 1, the condensate water outlet pipeline 2, the hot water unit 4 and the condensate water inlet pipeline 3 form a closed condensate system.

Specifically, the condensate water outlet regulating valve 21 is used for regulating the output of condensate after heat exchange with the photovoltaic panel radiator 1, and the condensate total regulating valve 26 is used for regulating the input amount of condensate of the hot water unit 4.

Specifically, the buffer tank 22 is used for temporarily storing condensate, and when the water pressure of the condensate in the hot water unit 4 is too high, the condensate can be temporarily stored through the buffer tank 22, so that the condition of pressure holding of the whole condensate system is prevented; meanwhile, when the condensate output of the photovoltaic panel radiator 1 is abnormal and the circulation of water is not smooth, the condensate stored in the buffer tank 22 can normally operate the hot water supply unit 4, and time is provided for eliminating the abnormality.

Specifically, the condensate pump 24 is used for delivering condensate after heat exchange with the photovoltaic panel radiator 1 to the hot water unit 4.

Specifically, the condensate Y-filter 24 is used to filter the condensate system to prevent impurities from being transported into the hot water unit 4.

Specifically, the buffer tank 22 is connected with a condensate water-replenishing regulating valve 221 and an exhaust valve 222, the condensate water-replenishing regulating valve 221 is connected with an external water source, and when the water pressure of the condensate system is insufficient, the condensate water-replenishing regulating valve 221 can be opened to replenish the water source into the condensate system; the exhaust valve 222 is used to exhaust the gas in the buffer tank 22 to prevent the pressure in the buffer tank 22 from being too high.

Embodiment four:

the embodiment provides an alternative to the connection between the condenser and the hot water tank based on any of the embodiments described above.

In this embodiment, as shown in fig. 1 to 3, the inlet end of the shell side of the condenser 43 is connected to the hot water tank 6 through a hot water outlet pipe 7, a hot water outlet regulating valve 71, a hot water drain valve 72, a hot water pump 73, a hot water Y-shaped filter 74 and a hot water total regulating valve 75 which are sequentially connected are provided on the hot water outlet pipe 7, the hot water outlet regulating valve 71 is provided at one end close to the hot water tank 6, and the hot water outlet pipe 7 is used for outputting hot water in the hot water tank 6. The shell side outlet end of the condenser 43 is connected with the hot water tank 6 through a hot water inlet pipeline 5, and the hot water inlet pipeline 5 is provided with a hot water inlet regulating valve 52 and a hot water source switch 51.

In the present embodiment, the functions of the hot water outlet regulating valve 71, the hot water drain valve 72, the hot water pump 73, the hot water Y-type filter 74, and the hot water total regulating valve 75 correspond to the condensate outlet regulating valve 21, the condensate drain valve 23, the condensate pump 24, the condensate Y-type filter 25, and the condensate total regulating valve 26, respectively, and will not be described here.

In the present embodiment, as shown in fig. 2, a hot water pipe 63 and a tap water pipe 65 are connected to the hot water tank 6, the hot water pipe 63 is used for outputting hot water in the hot water tank 6 to a scene of external water, and a hot water pump 632 and a hot water regulating valve 631 are provided on the hot water pipe 63; the tap water pipe 65 is used for supplementing cold water into the hot water tank 6, and a tap water supplementing regulating valve 652 and a tap water inlet pump 651 are arranged on the tap water pipe 65; the hot water tank 6 is also provided with a thermometer and a liquid level meter, the thermometer is electrically connected with the hot water unit 4 and the tap water inlet pump 651, and the liquid level meter is electrically connected with the tap water inlet pump 651.

Specifically, the hot water pump 632 is used to output hot water from the hot water tank 6, and the hot water regulator 631 is used to regulate the amount of hot water output.

Specifically, the tap water pipe 65 is used for supplementing water into the hot water tank 6, so that a certain liquid level is always maintained in the hot water tank 6, when the liquid level in the hot water tank 6 is detected to be lower than a certain threshold value by the liquid level meter, the tap water inlet pump 651 is opened, and the opening of the tap water supplementing regulating valve 652 is increased; when the liquid level meter detects that the liquid level in the hot water tank 6 is higher than a certain threshold value, the tap water inlet pump 651 is turned off or turned down and the opening of the tap water supplementing regulating valve 652 is reduced. When the thermometer detects that the temperature in the hot water tank 6 is lower than a certain threshold value, the power of the compressor 42 of the hot water unit 4 is increased, so that the temperature of the refrigerant in the condenser 42 is increased, or the electric quantity stored by the photovoltaic panel 8 is used for electrically heating the hot water tank 6 (namely, in a normal photovoltaic water heater mode); conversely, the compressor 42 is powered down.

When the utility model is applied to the scenes with hot water circulation requirements such as hotels, the hot water tank 6 is also connected with a hot water return pipeline 64, the hot water return pipeline 64 is provided with a hot water return pump 641 and a hot water return regulating valve 642, and the hot water return pipes 64 are used for recycling hot water in the scenes such as hotels to the hot water tank 6 for heating.

Fifth embodiment:

the embodiment provides an alternative to the specific structure of the photovoltaic panel radiator on the basis of any of the embodiments.

In this embodiment, as shown in fig. 2 and fig. 4 to 6, the photovoltaic panel radiator 1 includes a plurality of heat dissipating units 11 and a mounting frame 12, the heat dissipating units 11 are mounted on the mounting frame 12, and the photovoltaic panels 8 are mounted on the plurality of heat dissipating units 11; the heat dissipation unit 11 comprises a plurality of fin radiators 111 which are connected in parallel, the fin radiators 111 comprise a plurality of fins 1111 and pipeline installation grooves 1112, the condensate water inlet pipeline 3 is simultaneously connected with the inlet ends of a plurality of condensate branch pipes, the outlet ends of a plurality of condensate branch pipes are connected with the condensate water outlet pipeline 2, and condensate branch pipes are clamped in the pipeline installation grooves 1112.

Specifically, the heat dissipating unit 11 is mounted on the back surface of the photovoltaic panel 8, and the fin heat sink 111 is in direct contact with the back surface of the photovoltaic panel 8, and the fin heat sink 111 transfers the temperature of the photovoltaic panel 8 to the condensate branch pipe and the fins 1111 to dissipate heat. The condensate branch pipe is clamped in the pipeline installation groove 1112, and condensate in the condensate branch pipe exchanges heat with the groove wall of the pipeline installation groove 1112 through the pipe wall to bring away heat of the photovoltaic panel 8, and the fins 1111 of the fin radiator 111 reduce the temperature of the whole fin radiator 111 in an accelerating way through exchanging heat with the outside.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (6)

1. A photovoltaic heat pump system, characterized by: the solar water heater comprises a photovoltaic panel radiator (1), a hot water unit (4), a hot water tank (6) and a photovoltaic panel (8);

the photovoltaic panel (8) is arranged on the photovoltaic panel radiator (1);

the water heater unit (4) comprises a plurality of water heaters, each water heater comprises an evaporator (41), a compressor (42), a condenser (43) and a throttle valve (44) which are connected in sequence, and the throttle valve (44) and the evaporator (41) form a closed loop for refrigerant circulation; the evaporator (41) is connected with the photovoltaic panel radiator (1) and exchanges heat, and the condenser (43) is connected with the hot water tank (6) and exchanges heat;

the evaporator (41) and the condenser (43) are shell-and-tube heat exchangers, a refrigerant flows through the tube side of the evaporator (41), and the shell side of the evaporator (41) cools the photovoltaic panel radiator (1) through condensate; the tube side of the condenser (43) is communicated with a refrigerant, the shell side of the condenser (43) is connected with the inner cavity of the hot water tank (6), and the condenser (43) is used for heating water in the hot water tank (6);

the shell side inlet end of the evaporator (41) is connected with the photovoltaic panel radiator (1) through a condensate water outlet pipeline (2), a condensate water outlet regulating valve (21), a buffer tank (22), a condensate drain valve (23), a condensate pump (24), a condensate Y-type filter (25) and a condensate total regulating valve (26) which are sequentially connected are arranged on the condensate water outlet pipeline (2), and the condensate water outlet regulating valve (21) is arranged at one end close to the photovoltaic panel radiator (1);

the shell side outlet end of the evaporator (41) is connected with the photovoltaic panel radiator (1) through a condensate water inlet pipeline (3), and a condensate water source switch (31) and a condensate water inlet regulating valve (32) are arranged on the condensate water inlet pipeline (3);

the photovoltaic panel radiator (1) comprises a plurality of radiating units (11) and a mounting frame (12), wherein the radiating units (11) are arranged on the mounting frame (12), and a photovoltaic panel (8) is arranged on each of the radiating units (11);

the heat dissipation unit (11) comprises a plurality of fin radiators (111) which are connected in parallel, each fin radiator (111) comprises a plurality of fins (1111) and a pipeline installation groove (1112), a condensate water inlet pipeline (3) is connected with the inlet ends of a plurality of condensate branch pipes at the same time, the outlet ends of the condensate branch pipes are connected with a condensate water outlet pipeline (2), and condensate branch pipes are clamped in the pipeline installation grooves (1112).

2. A photovoltaic heat pump system according to claim 1, characterized in that the buffer tank (22) is connected with a condensate water make-up regulating valve (221) and an exhaust valve (222).

3. The photovoltaic heat pump system according to claim 1, wherein a hot water outlet pipeline (7) is connected between the shell side inlet end of the condenser (43) and the hot water tank (6), a hot water outlet regulating valve (71), a hot water drain valve (72), a hot water pump (73), a hot water Y-shaped filter (74) and a hot water total regulating valve (75) which are sequentially connected are arranged on the hot water outlet pipeline (7), the hot water outlet regulating valve (71) is arranged at one end close to the hot water tank (6), and the hot water outlet pipeline (7) is used for outputting hot water in the hot water tank (6).

4. A photovoltaic heat pump system according to claim 3, characterized in that the shell side outlet end of the condenser (43) is connected with the hot water tank (6) through a hot water inlet pipe (5), and the hot water inlet pipe (5) is provided with a hot water inlet regulating valve (52) and a hot water source switch (51).

5. The photovoltaic heat pump system according to claim 4, wherein the hot water tank (6) is connected to a hot water pipe (63) and a tap water pipe (65), the hot water pipe (63) is configured to output hot water in the hot water tank (6) to the outside, and the hot water pipe (63) is provided with a hot water pump (632) and a hot water regulating valve (631);

the tap water pipe (65) is used for supplementing cold water into the hot water tank (6), and a tap water supplementing regulating valve (652) and a tap water inlet pump (651) are arranged on the tap water pipe (65);

the hot water tank (6) is also provided with a thermometer and a liquid level meter, the thermometer is electrically connected with the hot water unit (4) and the tap water inlet pump (651), and the liquid level meter is electrically connected with the tap water inlet pump (651).

6. A photovoltaic heat pump system according to claim 5, characterized in that the hot water tank (6) is further connected with a hot water return pipe (64), and the hot water return pipe (64) is provided with a hot water return pump (641) and a hot water return regulating valve (642).