Low energy consumption intelligent photovoltaic greenhouse

Abstract

The application provides a low-energy-consumption intelligent photovoltaic greenhouse, which comprises a photovoltaic power generation grid-connected energy storage system, a photovoltaic panel cleaning and recycling unit, a spraying nozzle arranged near a photovoltaic module array, a water tank arranged at the bottom of the photovoltaic module array and a water supply tank arranged outside the greenhouse, and the water supply tank supplies water to the spraying nozzle; and a cooling and heating system, which comprises a heat force coil, a heat storage water tank, a cold storage water tank, a heating radiator arranged on the side wall of the greenhouse and a first heat pump and a second heat pump. The photovoltaic module array driven heat pump and the heat force coil provide heat source and cold source for the heating radiator, and in the temperature regulation process, especially in the heating process, the photovoltaic electric energy and the photovoltaic thermal energy are simultaneously utilized to realize the greenhouse temperature rising effect, enhance the heat utilization rate and reduce the energy waste.

Description

Technical Field

[0001] This invention belongs to the field of greenhouse technology, and in particular relates to a low-energy intelligent photovoltaic greenhouse. Background Technology

[0002] The world today faces challenges such as rapid population growth, fossil fuel shortages, and heightened food security, placing immense pressure on traditional open-field agriculture. To ensure crop quality and yield, agricultural energy inputs are increasing year by year. Greenhouses, due to their relatively enclosed environment, can regulate indoor environmental factors, alleviating the environmental constraints of open-field agriculture. However, traditional greenhouses rely on electricity to regulate the crop growth environment, resulting in significant electricity consumption. Therefore, renewable and environmentally friendly energy sources that replace fossil fuels will play a crucial role in meeting this demand.

[0003] In existing technologies, photovoltaic greenhouses generally only rely on photovoltaic power generation to realize energy utilization. Other corresponding greenhouse equipment is not effectively utilized in combination with the characteristics of the greenhouse. The heat energy generated during the photovoltaic energy collection process is not effectively utilized, and the energy utilization efficiency of solar energy in the greenhouse structure is low. Summary of the Invention

[0004] This invention provides a low-energy-consumption intelligent photovoltaic greenhouse, which aims to solve the problem that the heat energy generated during the photovoltaic energy collection process is not effectively utilized and the energy utilization efficiency of solar energy in the greenhouse structure is low.

[0005] This invention is implemented as follows: a low-energy intelligent photovoltaic greenhouse, comprising:

[0006] A photovoltaic power generation grid-connected energy storage system, comprising a photovoltaic module support, a photovoltaic module array, and a battery bank;

[0007] The photovoltaic module support is installed on the outside of the greenhouse, while the photovoltaic module array is distributed on the top of the greenhouse;

[0008] A photovoltaic panel cleaning and recycling unit includes a spray nozzle located near the photovoltaic module array, a water tank located at the bottom of the photovoltaic module array, and a water supply tank located outside the greenhouse. The water supply tank supplies water to the spray nozzle.

[0009] The cooling and heating system comprises a heat pipe provided with a greenhouse roof, a hot water storage tank, a cold water storage tank, a heating radiator provided on the side wall of the greenhouse, a first heat pump and a second heat pump. The heat pipe is located below the photovoltaic module array. The photovoltaic module array collects heat overflow. The overflow heat heats the water in the heat pipe to form hot water. The water tank collects the hot water generated during the cleaning process and sends the hot water back to the hot water storage tank through the heat pipe. The first heat pump heats the hot water in the hot water storage tank and then sends the hot water to the heating radiator through the hot water storage tank to achieve heating. The second heat pump cools the cold water in the cold water storage tank and then sends the cold water to the heating radiator through the cold water storage tank to complete refrigeration.

[0010] The central control system is used for controlling the photovoltaic power generation grid-connected energy storage system, the photovoltaic panel cleaning and recycling unit and the cooling and heating system.

[0011] Preferably, the heat pipe is independently connected to the hot water storage tank through a pipeline. The heating radiator is connected to the hot water storage tank and the cold water storage tank through pipelines respectively. The heat pipe supplies hot water to the hot water storage tank. The cold water storage tank and the hot water storage tank supply cold water and hot water to the heating radiator respectively.

[0012] Preferably, the water tank is connected to the hot water storage tank through a pipeline. A filter screen is arranged on the pipeline between the water tank and the hot water storage tank.

[0013] Preferably, the cooling and heating system is provided with a second temperature sensor, a third temperature sensor and a fourth temperature sensor. The second temperature sensor is arranged in the hot water storage tank. The third temperature sensor is arranged in the cold water storage tank. The fourth temperature sensor is arranged at the water outlet of the heat pipe.

[0014] Preferably, the cooling and heating system is further provided with a second electromagnetic valve, a third electromagnetic valve and a fourth electromagnetic valve. The second electromagnetic valve is arranged on the connecting pipeline between the water outlet of the heat pipe and the hot water storage tank. The third electromagnetic valve is arranged on the connecting pipeline between the outlet of the heating radiator and the cold water storage tank. The fourth electromagnetic valve is arranged on the connecting pipeline between the outlet of the heating radiator and the hot water storage tank.

[0015] Preferably, the photovoltaic module array is further provided with a photovoltaic controller and a grid-connected inverter. The grid-connected inverter forms direct current and alternating current. The direct current is directly sent to the battery pack for energy storage. The alternating current is supplied to the first heat pump, the second heat pump and other electrical equipment.

[0016] Preferably, the central control system further comprises a data acquisition end arranged in the greenhouse. The data acquisition end comprises a temperature sensor, a humidity sensor, a soil PH value sensor, a CO2 concentration sensor, an illumination sensor, a soil moisture sensor, an EC value sensor and a flow meter.

[0017] Preferably, the greenhouse is provided with a light supplement lamp and a atomizing nozzle, and the light supplement lamp and the atomizing nozzle are electrically connected with the central control system.

[0018] Preferably, the first circulating water pump and the second circulating water pump are arranged between the heat storage water tank and the first heat pump, the first circulating water pump sends water flow in the heat storage water tank into the first heat pump, and the second circulating water pump sends water flow in the first heat pump into the heat storage water tank.

[0019] Preferably, the third circulating water pump and the fourth circulating water pump are arranged between the cold storage water tank and the second heat pump, the third circulating water pump sends water flow in the second heat pump into the cold storage water tank, and the fourth circulating water pump sends water flow in the cold storage water tank into the second heat pump.

[0020] Compared with the prior art, the embodiment of the application has the following beneficial effects:

[0021] 1、The low-energy-consumption intelligent photovoltaic greenhouse provided by the application provides heat source and cold source for the heating radiators through the photovoltaic module array driving the heat pump combined with the heat coil, and in the temperature regulation process, especially in the heating process, the photovoltaic electric energy and the photovoltaic thermal energy are simultaneously utilized to realize the temperature rising effect of the greenhouse, enhance the heat utilization rate and reduce energy waste.

[0022] 2、The photovoltaic panel cleaning and recycling unit in the low-energy-consumption intelligent photovoltaic greenhouse can clean the photovoltaic panel, cool the greenhouse and recycle the water heated by the cleaned photovoltaic panel, the cleaning device can not only keep the surface of the solar photovoltaic panel clean, improve the power generation efficiency and prolong the service life of the battery, but also has the functions of cooling the greenhouse and storing energy. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a structural schematic diagram of a low-energy-consumption intelligent photovoltaic greenhouse provided by the application.

[0024] Figure 2 is a structural schematic diagram of a photovoltaic power generation and grid-connected energy storage system of a low-energy-consumption intelligent photovoltaic greenhouse provided by the application.

[0025] Figure 3 is Figure 2 is a structural schematic diagram of a photovoltaic panel cleaning and recycling unit of a low-energy-consumption intelligent photovoltaic greenhouse disclosed by the application.

[0026] Figure 4 is a structural schematic diagram of a first heat pump and a second heat pump of a low-energy-consumption intelligent photovoltaic greenhouse provided by the application.

[0027] Figure 5 is a structural schematic diagram of a cooling and heating system of a low-energy-consumption intelligent photovoltaic greenhouse provided by the application.

[0028] Figure 6It is a cooling heating system fin structure schematic diagram of a low-energy consumption intelligent photovoltaic greenhouse provided by the application.

[0029] Figure 7 It is a water curtain fan side opening window device structure schematic diagram of a low-energy consumption intelligent photovoltaic greenhouse provided by the application.

[0030] Figure 8 It is a touch screen structure schematic diagram of a low-energy consumption intelligent photovoltaic greenhouse provided by the application.

[0031] Figure 9 It is a central control system structure schematic diagram of a low-energy consumption intelligent photovoltaic greenhouse provided by the application.

[0032] Marked with reference numerals:

[0033] 1, photovoltaic power generation and grid storage system; 11, photovoltaic component support; 12, photovoltaic component array; 13, photovoltaic controller; 14, grid-connected inverter; 15, battery pack; 16, first heat pump; 17, second heat pump; 18, touch screen; 19, control cabinet;

[0034] 2, photovoltaic panel cleaning and recycling unit; 21, water supply tank; 22, water pipe; 23, spray nozzle; 24, water tank; 25, filter screen; 26, hot water storage tank;

[0035] 3, cooling and heating system; 31, first circulating water pump; 32, second circulating water pump, 33, cold water storage tank; 34, third circulating water pump; 35, fourth circulating water pump; 36, heat coil; 37, radiator;

[0036] 4, water curtain fan side opening window device; 41, negative pressure fan; 42, water curtain; 43, water curtain pool; 44, screen; 45, speed reducer; 46, transmission shaft;

[0037] 5, central control system; 51, first temperature sensor; 52, second temperature sensor; 53, third temperature sensor; 54, fourth temperature sensor; 55, first electromagnetic valve; 56, second electromagnetic valve; 57, third electromagnetic valve; 58, fourth electromagnetic valve;

[0038] 61, light supplementing lamp; 62, atomizing nozzle. DETAILED DESCRIPTION

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application; the use herein of terms such as "comprise", "have" and "include" or variations such as "comprises", "comprising", "including" and "includes", are intended to be inclusive or open-ended and do not exclude additional, unrecited elements or method steps; the use of terms such as "first", "second" and the like in the description herein is intended to indicate different sequentially or otherwise, and is not intended to indicate terms "first", "second" and the like should be taken in a literal sense.

[0040] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily all directed to the same embodiment, or to a single alternative embodiment.

[0041] The embodiments of the present application provide a low-energy-consumption intelligent photovoltaic greenhouse, as shown in the drawings, the low-energy-consumption intelligent photovoltaic greenhouse comprises: Figure 1 The low-energy-consumption intelligent photovoltaic greenhouse comprises:

[0042] The photovoltaic power generation and grid-connected energy storage system 1 comprises a photovoltaic component support 11, a photovoltaic component array 12 and a battery pack 15.

[0043] The photovoltaic component support 11 is arranged outside the greenhouse, and the photovoltaic component array 12 is arranged on the top of the greenhouse, and the photovoltaic component array 12 mainly generates electric energy to supply power to the battery pack 15, the first heat pump 16 and the second heat pump 17.

[0044] The photovoltaic panel cleaning and recycling unit 2 comprises a spraying nozzle 23 arranged near the photovoltaic component array 12, a water tank 24 arranged at the bottom of the photovoltaic component array 12 and a water supply tank 21 arranged outside the greenhouse, and the water supply tank 21 supplies water to the spraying nozzle 23.

[0045] The cooling and heating system 3 comprises a heat pipe 36 arranged on the roof of the greenhouse, a heat storage tank 26, a cold storage tank 33, a heating radiator 37 arranged on the side wall of the greenhouse, the first heat pump 16 and the second heat pump 17, and the water tank 24 collects the hot water generated in the cleaning process and sends the hot water to the heat storage tank 26 through the heat pipe 36; the first heat pump 16 heats the hot water in the heat storage tank 26 and then sends the hot water to the heating radiator 37 through the heat storage tank 26 to achieve heating, and the second heat pump 17 cools the cold water in the cold storage tank 33 and then sends the cold water to the heating radiator 37 through the cold storage tank 33 to achieve cooling.

[0046] In the present embodiment, the photovoltaic power generation and grid-connected energy storage system 1 mainly adopts the existing technology, the photovoltaic component array 12 is a solar power panel, the photovoltaic power generation and grid-connected energy storage system 1 also includes a supporting photovoltaic controller 13, a grid-connected inverter 14, a touch screen 18 and a control cabinet 19 for installing control equipment; in the present application, the photovoltaic power generation and grid-connected energy storage system 1, the photovoltaic panel cleaning and recycling unit 2 and the cooling and heating system 3 are all realized intelligent control by the central control system 5 arranged in the control cabinet 19 and the sensors and control valves arranged on different equipment; the central control system 5 mainly includes an industrial computer, a controller and the like;

[0047] Here, the photovoltaic controller 13 converts the electric energy generated by the photovoltaic component array 12 into direct current and alternating current through the grid-connected inverter 14, the direct current is directly sent to the storage battery pack 15 for energy storage, and the alternating current is used as power for the first heat pump 16, the second heat pump 17 and other electrical equipment; the photovoltaic power generation and grid-connected energy storage system 1 is also connected with the power network, and when the light power generation is insufficient, the power is supplemented by the power network;

[0048] The cooling and heating system 3 mainly includes the heat exchanger coil 36 arranged on the roof of the greenhouse and the heating radiators 37 located on the side wall of the greenhouse, the heating radiators 37 outside the greenhouse are the heat source and the cold source of the heat storage water tank 26 and the cold storage water tank 33, the heat exchanger coil 36 is independently connected with the heat storage water tank 26 through a pipeline, the heating radiators 37 are respectively connected with the heat storage water tank 26 and the cold storage water tank 33 through pipelines, the heat exchanger coil 36 supplies hot water to the heat storage water tank 26, and the cold storage water tank 33 and the heat storage water tank 26 supply cold water and hot water to the heating radiators 37, respectively; the heat exchanger coil 36 is located below the photovoltaic component array 12, the photovoltaic component array 12 collects the heat overflow, and the overflow heat heats the water in the heat exchanger coil 36 to form hot water; the photovoltaic component support 11 supports the photovoltaic component array 12, and the heat exchanger coil 36 is arranged in the photovoltaic component support 11 below the photovoltaic component array 12;

[0049] Here, the first circulating water pump 31 and the second circulating water pump 32 are arranged between the heat storage water tank 26 and the first heat pump 16, the first circulating water pump 31 sends the water flow in the heat storage water tank 26 to the first heat pump 16, and the second circulating water pump 32 sends the water flow in the first heat pump 16 to the heat storage water tank 26, forming a reciprocating circulation, so as to ensure that the temperature in the heat storage water tank 26 is maintained within a certain range, since the hot water in the heat storage water tank 26 is sent to the heating radiators 37 for heat supply, the heat supplement through the first heat pump 16 can maintain the stability of the temperature in the heat storage water tank 26; the heat storage water tank 26 simultaneously receives the hot water collected from the heat exchanger coil 36 and the photovoltaic panel cleaning and recycling unit 2;

[0050] Similarly, the third circulating water pump 34 is arranged between the cold water storage tank 33 and the second heat pump 17, and the fourth circulating water pump 35 is arranged between the second heat pump 17 and the cold water storage tank 33, the third circulating water pump 34 sends water flow in the second heat pump 17, and the fourth circulating water pump 35 sends water flow in the second heat pump 17 from the cold water storage tank 33, to complete the cooling water cooling requirement;

[0051] The low-energy-consumption intelligent photovoltaic greenhouse further comprises a water curtain fan side window opening device 32, the water curtain fan side window opening device 4 comprises a negative pressure fan 41, a water curtain 42, a water curtain pool 43, a gauze screen 44, a speed reducer 45 and a transmission shaft 46; the negative pressure fan 41 is installed at the front door of the greenhouse, the water curtain 42 is installed opposite to the front door of the greenhouse, the water curtain pool 43 is installed at the lower part of the water curtain 42, the water in the water curtain 42 is recycled and reused, the gauze screen 44 is installed on the transmission shaft 46 outside the water curtain, the transmission shaft is connected with the speed reducer 45, and the speed reducer 45 is used for controlling the gauze screen to open and close, so that the effect of cooling in the daytime and heat preservation at night is achieved, and the part of the structure is mainly realized by using the existing technical means;

[0052] As a preferred embodiment in the embodiment, the water pipe 22 is connected between the water supply tank 21 and the spray nozzle 23, and the connecting pipe is arranged between the water tank 24 and the heat storage tank 26, the filter screen 25 is arranged on the connecting pipe, the first temperature sensor 51 is installed behind the filter screen 25, the first temperature sensor 51 is used for detecting the temperature of the water flow for cleaning the photovoltaic panel and heating, the first electromagnetic valve 55 is installed on the connecting pipe between the water tank and the heat storage tank 26, and the first electromagnetic valve 55 is used for controlling hot water to enter the heat storage tank 26;

[0053] As a preferred embodiment in the embodiment, the first heat pump 16 mainly comprises an axial flow fan, an evaporator, a compressor and a condenser, outdoor air is compressed by the operation of the axial flow fan, the compressed air is subjected to heat exchange on the evaporator of the first heat pump 16, the air with reduced temperature is discharged from the system by the fan, meanwhile, the working medium in the evaporator absorbs heat and vaporizes to be sucked into the compressor, the compressor compresses the low-pressure working medium gas into high-temperature and high-pressure gas to be sent into the condenser, the water forcedly circulated by the water pump also passes through the condenser, the water is heated by the working medium and then stored in the heat storage tank 26, and the working medium is cooled into liquid, the liquid flows into the evaporator again after being throttled and cooled by the expansion valve, and the cycle is repeated, the heat energy in the air is continuously pumped into the water, the water temperature in the heat storage tank 26 gradually increases, and heating is realized;

[0054] The second heat pump 17 is mainly composed of a compressor, an air heat exchanger, a water heat exchanger and the like. The low-temperature and low-pressure gaseous refrigerant is compressed by the compressor to become high-temperature and high-pressure gas, enters the air heat exchanger, and because the temperature of the refrigerant is higher than the temperature of the air, the refrigerant transfers heat to the air. The refrigerant is condensed into high-pressure and low-temperature liquid, the high-pressure liquid refrigerant is throttled by the expansion valve and enters the water heat exchanger, and because the temperature of the refrigerant is lower than the temperature of the water, the refrigerant absorbs the temperature of the water, the water becomes cold water and is stored in the cold water storage tank 33, and the low-pressure liquid refrigerant is vaporized again. Such a cycle is repeated to gradually reduce the temperature of the water in the cold water storage tank 33, thereby achieving refrigeration.

[0055] The second temperature sensor 52, the third temperature sensor 53, the fourth temperature sensor 54, the second electromagnetic valve 56, the third electromagnetic valve 57 and the fourth electromagnetic valve 58 are arranged in the cooling and heating system 3. The second temperature sensor 52 is arranged in the hot water storage tank 26, the third temperature sensor 53 is arranged in the cold water storage tank 33, and the fourth temperature sensor 54 is arranged at the water outlet of the heat exchanger coil 36 to monitor the temperature of the hot water sent by the heat exchanger coil 36. The first temperature sensor 51 monitors the hot water collected by the photovoltaic panel cleaning and recycling unit 2, and the second temperature sensor 52 and the fourth temperature sensor 54 are used to adjust the heating effect of the first heat pump 16 to maintain the temperature of the hot water storage tank 26 stable. The second electromagnetic valve 56 is arranged on the connecting pipeline between the water outlet of the heat exchanger coil 36 and the hot water storage tank 26, the third electromagnetic valve 57 is arranged on the connecting pipeline between the cold water storage tank 33 and the outlet of the radiator 37, and the fourth electromagnetic valve 58 is arranged on the connecting pipeline between the hot water storage tank 26 and the outlet of the radiator 37. The fourth electromagnetic valve 58 and the third electromagnetic valve 57 are mainly used to control the refrigeration and heating effects of the radiator 37.

[0056] As a preferred embodiment in the present embodiment, the central control system 5 further comprises a data acquisition end arranged in the greenhouse. The data acquisition end comprises a temperature sensor, a humidity sensor, a soil PH value sensor, a CO2 concentration sensor, an illumination sensor, a soil moisture sensor, an EC value sensor and a flow meter. The central control system 5 controls the light supplement lamp 61 and the atomizing nozzle 62 in the greenhouse according to the data of the data acquisition end to adjust the corresponding parameters in the greenhouse. Different device indicator lights are arranged on the touch screen 18 to mark the operating states of various devices.

[0057] In the process of power matching, the central control system 5 will adapt according to the energy consumption of the battery pack 15, the first heat pump 16 and the second heat pump 17. For example, the power generated by the photovoltaic module support 11 will preferentially ensure the normal operation of the first heat pump 16 or the second heat pump 17, and the excess power will be stored in the battery pack 15. When the photovoltaic module support 11 generates insufficient power, the battery pack 15 will reversely provide power to the first heat pump 16 or the second heat pump 17 to ensure the normal operation of the first heat pump 16 or the second heat pump 17.

[0058] In the temperature balance state, the central control system 5 will supplement the hot water collected by the photovoltaic panel cleaning and recycling unit 2 and the heat coil 36 to the hot water storage tank 26 during the heating process, reducing the energy demand of the hot water storage tank 26 on the first heat pump 16, enhancing heat utilization and reducing energy waste.

[0059] It should be noted that for the foregoing embodiments, in order to simply describe, they are all expressed as a series of action combinations, but those skilled in the art should know that the present application is not limited by the order of the described actions, because according to the present application, certain steps can be performed in other order or simultaneously. Secondly, those skilled in the art should know that the embodiments described in the specification all belong to preferred embodiments, and the actions and modules involved are not necessarily necessary for the present application.

[0060] The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the protection scope of the application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add or delete the features of the embodiments of the present application according to the circumstances without creative labor, so as to obtain different other technical solutions which do not deviate from the concept of the present application in essence. These technical solutions also belong to the scope of the present application.

Claims

1. A low energy consumption intelligent photovoltaic greenhouse, characterized in that, It comprises: A photovoltaic power generation and grid-connected energy storage system, which comprises a photovoltaic module support, a photovoltaic module array and a battery pack; The photovoltaic module support is arranged outside the greenhouse, and the photovoltaic module array is distributed on the top of the greenhouse; A photovoltaic panel cleaning and recycling unit, which comprises a spray nozzle arranged near the photovoltaic module array, a water tank at the bottom of the photovoltaic module array and a water supply tank arranged outside the greenhouse, the water supply tank supplies water to the spray nozzle; A cooling and heating system, which comprises a heat coil arranged on the roof of the greenhouse, a hot water storage tank, a cold water storage tank, a heating radiator arranged on the side wall of the greenhouse and a first heat pump and a second heat pump, the heat coil is located below the photovoltaic module array, the photovoltaic module array collects heat overflow, the overflow heat heats the water in the heat coil to form hot water, and the water tank collects the hot water generated during the cleaning process and sends it back to the hot water storage tank; the first heat pump heats the hot water in the hot water storage tank, and then introduces it into the heating radiator through the hot water storage tank to achieve heating, and the second heat pump cools the cold water in the cold water storage tank, and then introduces it into the heating radiator through the cold water storage tank to complete refrigeration; A central control system for controlling the photovoltaic power generation and grid-connected energy storage system, the photovoltaic panel cleaning and recycling unit and the cooling and heating system.

2. A low energy consumption smart photovoltaic greenhouse as claimed in claim 1, characterized in that, The heat coil is independently connected to the hot water storage tank through a pipeline, the heating radiator is connected to the hot water storage tank and the cold water storage tank through pipelines respectively, the heat coil supplies hot water to the hot water storage tank, and the cold water storage tank and the hot water storage tank supply cold water and hot water to the heating radiator respectively.

3. A low energy consumption smart photovoltaic greenhouse as claimed in claim 2, characterized in that, The water tank is connected to the hot water storage tank through a pipeline, and a filter screen is arranged on the pipeline between the water tank and the hot water storage tank.

4. A low energy consumption smart photovoltaic greenhouse as claimed in claim 3, characterized in that, Second, third and fourth temperature sensors are arranged in the cooling and heating system, the second temperature sensor is arranged in the hot water storage tank, the third temperature sensor is arranged in the cold water storage tank, and the fourth temperature sensor is arranged at the water outlet of the heat coil.

5. A low energy consumption smart photovoltaic greenhouse as claimed in claim 4, characterized in that, Second, third and fourth electromagnetic valves are also arranged in the cooling and heating system, the second electromagnetic valve is arranged on the connecting pipeline between the water outlet of the heat coil and the hot water storage tank, the third electromagnetic valve is arranged on the connecting pipeline between the outlet of the heating radiator and the cold water storage tank, and the fourth electromagnetic valve is arranged on the connecting pipeline between the outlet of the heating radiator and the hot water storage tank.

6. A low energy consumption smart photovoltaic greenhouse as claimed in claim 5, characterized in that, A photovoltaic controller and a grid-connected inverter are also arranged on the photovoltaic module array, the grid-connected inverter generates direct current and alternating current, the direct current is directly sent to the battery pack for energy storage, and the alternating current is supplied to the first heat pump, the second heat pump and other electrical equipment.

7. A low energy consumption smart photovoltaic greenhouse according to claim 6, characterized in that, The central control system also comprises a data acquisition end arranged in the greenhouse, which comprises a temperature sensor, a humidity sensor, a soil PH value, a CO2 concentration sensor, a light sensor, a soil moisture sensor, an EC value sensor and a flow meter.

8. A low energy consumption smart photovoltaic greenhouse according to claim 7, characterized in that, A light supplement lamp and a atomizing nozzle are arranged in the greenhouse, and the light supplement lamp and the atomizing nozzle are electrically connected with the central control system.

9. A low energy consumption smart photovoltaic greenhouse according to claim 8, characterized in that, The first circulating water pump and the second circulating water pump are arranged between the heat storage water tank and the first heat pump, the first circulating water pump sends water flow in the heat storage water tank into the first heat pump, and the second circulating water pump sends water flow in the first heat pump into the heat storage water tank.

10. A low energy consumption smart photovoltaic greenhouse as claimed in claim 9, characterized in that, The third circulating water pump and the fourth circulating water pump are arranged between the cold storage water tank and the second heat pump, the third circulating water pump sends water flow in the second heat pump into the cold storage water tank, and the fourth circulating water pump sends water flow in the cold storage water tank into the second heat pump.

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