Energy exchange double-layer film photovoltaic sunlight greenhouse

Abstract

The invention discloses an energy exchange double-layer film photovoltaic sunlight greenhouse which comprises a first greenhouse film and a greenhouse frame, an inclined photovoltaic panel is arranged at the top of the greenhouse frame to serve as a greenhouse roof, a waterproof breathable film is laid below the photovoltaic panel, so that a first space is defined by the photovoltaic panel and the waterproof breathable film, and a second space is formed between the first space and the waterproof breathable film. A first space is defined by the first greenhouse film and the waterproof breathable film, a second space is defined by the first greenhouse film and the waterproof breathable film, bidirectional fans are arranged on the first heat preservation wall body and the second heat preservation wall body in the first space, and by arranging the first space on the dark side, the waterproof breathable film and the second space on the sunny side, the energy temperature conversion process of the three spaces is achieved. The energy and temperature conversion is a uniform process, hot gas rises, cold gas drops, the waterproof breathable film exchanges the gas, but water vapor does not lose and still flows into the planting greenhouse, the energy exchange efficiency is improved, and a more stable environment is provided for growth of crops.

Description

Technical Field

[0001] The invention relates to the technical field of solar greenhouses, in particular to a double-layer film photovoltaic solar greenhouse for energy exchange. Background Art

[0002] A solar greenhouse, also known as a warm shed, uses simple facilities to utilize solar energy and cultivate vegetables over the winter without heating in cold seasons, thereby producing fresh vegetables.

[0003] The solar greenhouses built by each household will adopt different structures in order to improve the utilization of solar energy. For example, bamboo and wood structures, steel and wood structures, reinforced concrete structures, all-steel structures, cable-suspended structures, etc. Generally speaking, these structures have the functions of heat collection, heat storage and insulation, and are an important source of heat for the greenhouse at night in winter.

[0004] However, the above-mentioned solar greenhouse structures have various disadvantages, including large initial investment, heavy material weight, the weight of greenhouse wall panels in the prior art is 2.3-2.8 tons / cubic meter, and poor heat absorption and energy exchange capabilities. Summary of the invention

[0005] The purpose of the present invention is to provide a double-layer film photovoltaic solar greenhouse for energy exchange, which has strong heat absorption and energy exchange capabilities and is suitable for use in different regions.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A double-layer film photovoltaic solar greenhouse for energy exchange, comprising:

[0008] A first greenhouse film and a shed frame, wherein the first greenhouse film is suitable for covering the south-facing side of the shed frame, a first heat-insulating wall is provided on the north-facing side of the shed frame, and second heat-insulating walls are provided on both sides of the shed frame in the east-west direction, an inclined photovoltaic panel is provided on the top of the shed frame as a shed roof, and heat-insulating panels are also provided on the outside of the first heat-insulating wall and the second heat-insulating wall;

[0009] A waterproof breathable membrane is laid under the photovoltaic panel, so that a first space is enclosed between the photovoltaic panel, the waterproof breathable membrane, the first thermal insulation wall on the north side, and the second thermal insulation walls on the east and west sides, and a second space is enclosed between the first greenhouse film, the waterproof breathable membrane, the first thermal insulation wall on the north side, and the second thermal insulation walls on the east and west sides, the waterproof breathable membrane is a polymer membrane, and the first space and the second space exchange energy through the waterproof breathable membrane;

[0010] The first thermal insulation wall and the second thermal insulation wall in the first space are provided with bidirectional fans.

[0011] Optionally, a second arc-shaped greenhouse film is provided in the second space, the second greenhouse film is rolled up by a first reel, the second greenhouse film is arranged close to the first greenhouse film, the second greenhouse film is provided with a first arc-shaped quilt layer close to the first insulation wall, the first quilt layer is rolled up by a second reel, and the second greenhouse film and the first quilt layer form a semicircular third space.

[0012] Optionally, a second quilt layer is provided on the outer side of the second greenhouse film, and the second quilt layer is rolled up by a third reel.

[0013] Optionally, a U-shaped tube is provided on the inner side of the first heat-insulating wall, and two inlets are provided at the bottom of the U-shaped tube, and outlets at both ends extend out of the greenhouse.

[0014] Optionally, the second space is provided with:

[0015] A fermentation tank, the fermentation tank comprising a clean water area and an organic matter area, wherein substances in the clean water area and the organic matter area can be exchanged to achieve integrated water-fertilizer fermentation;

[0016] There are multiple energy storage water pipes, which are interconnected. The water inlet end of the energy storage water pipe is connected to the clean water area of ​​the fermentation tank through the water inlet pipe, and the water outlet end of the energy storage water pipe is connected to the clean water area of ​​the fermentation tank through the water outlet pipe. A circulating pump is connected to the water inlet pipe to allow water in the clean water area to circulate between the clean water area and the energy storage water pipe. A first filter is provided between the water inlet pipe and the circulating pump.

[0017] Optionally, the energy storage water pipe is arranged at a distance of 10 cm from the ground, the energy storage water pipe is arranged along the east-west direction of the second space, and the energy storage water pipe is arranged close to the first greenhouse film so as to absorb heat from sunlight;

[0018] The bottom of the energy storage water pipe is connected to a plurality of drip irrigation pipes, each of the drip irrigation pipes is connected to a plurality of drip irrigation belts, and each of the drip irrigation pipes is provided with a first valve;

[0019] A plurality of exhaust holes are evenly distributed on each of the energy storage water pipes, and a sealing cover threadedly connected to the exhaust hole is provided on the exhaust hole.

[0020] Optionally, the tops of the clean water area and the organic matter area of ​​the fermentation tank are flush, the tops of the clean water area and the organic matter area are provided with top covers, the bottom of the organic matter area is lower than the bottom of the clean water area, a heating rod is provided at the bottom of the clean water area and / or the organic matter area, and a second filter screen is provided between the clean water area and the organic matter area;

[0021] An exhaust pipe is provided on the side wall of the organic matter area, one end of the exhaust pipe is connected to the organic matter area, and the other end of the exhaust pipe extends to the outside of the greenhouse;

[0022] The top cover is provided with an oxygen supply pipe, one end of which is connected to the oxygen supplier, and the other end of which extends into the organic matter area.

[0023] Optionally, a rainwater collection pool is provided on the outside of the first greenhouse film. The rainwater collection pool is arranged below the ground and connected to the bottom of the first greenhouse film. A third filter net is provided on the top of the rainwater collection pool, and the side wall of the rainwater collection pool is connected to a pumping pipe.

[0024] Compared with the traditional technology, the advantages of the present invention are: according to the principle of aerodynamics, sunlight heats the ground and the planting space through the first greenhouse film, so that the temperature in the second space rises and the gas rises. Because the second space is a closed space, the temperature rises faster. The second space on the sunny side and the first space on the shady side automatically exchange energy through the waterproof breathable membrane. At the same time, the first space on the shady side forms an energy exchange space with the outside space through the two-way fan. In the process of crop growth, temperature and energy are very important factors. The change in temperature required by any organism is a slow adaptation process. The rapid increase and decrease of the surrounding temperature will have a bad effect on the growth of crops. By setting the first space on the shady side, the waterproof breathable membrane, and the second space on the sunny side, the energy temperature conversion of these three spaces is realized automatically. The conversion process is also a uniform process. The hot gas rises and the colder gas falls. The waterproof breathable membrane exchanges the gas, but the water vapor does not lose and still flows into the inside of the planting shed, which improves the energy exchange efficiency and provides a more stable environment for the growth of crops. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the drawings required for the implementation methods or the prior art descriptions are briefly introduced below. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0026] Figure 1 The structure of the double-layer film photovoltaic solar greenhouse for energy exchange in the present invention Figure 1 ;

[0027] Figure 2 It is a cross-sectional view of the connection between the fermentation tank and the energy storage water pipe in the present invention;

[0028] Figure 3 It is a detailed diagram of the connection between the energy storage water pipe and the drip irrigation water pipe in the present invention;

[0029] Figure 4 The structure of the double-layer film photovoltaic solar greenhouse for energy exchange in the present invention Figure 2 ;

[0030] Figure 5 It is a structural diagram of the U-shaped tube in the present invention.

[0031] Indications in the figure: 11, first greenhouse film; 12, shed frame; 13, first insulation wall; 14, second insulation wall; 15, photovoltaic panel; 16, waterproof breathable membrane; 17, first space; 18, second space; 19, two-way fan; 20, third space; 21, second greenhouse film; 22, first reel; 23, first quilt layer; 24, second reel; 25, second quilt layer; 26, third reel; 27, U-shaped tube; 28, inlet; 29, outlet; 31. Fermentation tank; 32. Clean water area; 33. Organic matter area; 34. Top cover; 35. Heating rod; 36. Second filter; 37. Exhaust pipe; 38. Oxygen supply pipe; 41. Energy storage water pipe; 42. Water inlet pipe; 43. Water outlet pipe; 44. Circulation pump; 45. First filter; 46. Drip irrigation pipe; 47. Drip irrigation tape; 48. First valve; 49. Exhaust hole; 50. Sealing cover; 51. Rainwater collection pool; 52. Third filter; 53. Pumping pipe. DETAILED DESCRIPTION

[0032] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] As mentioned above, the existing solar greenhouse structure has the problem of poor heat absorption and energy exchange. In order to address the above problems, the present invention proposes a double-layer film photovoltaic solar greenhouse for energy exchange. In some embodiments, Figures 1 to 5 As shown, a double-layer film photovoltaic solar greenhouse for energy exchange includes a first greenhouse film 11 and a shed frame 12.

[0035] The first greenhouse film 11 is suitable for covering the south side of the shed 12, the north side of the shed 12 is provided with a first insulation wall 13, the east-west sides of the shed 12 are provided with a second insulation wall 14, the top of the shed 12 is provided with an inclined photovoltaic panel 15 as the roof, the first insulation wall 13 and the second insulation wall 14 are also provided with insulation boards on the outside, the first insulation wall 13 and the second insulation wall 14 are foamed cement walls, and the inner side is painted with heating paint. The first greenhouse film 11 is preferably a PEP15 silk plastic film.

[0036] A waterproof and breathable membrane 16 is laid under the photovoltaic panel 15, so that a first space 17 is enclosed between the photovoltaic panel 15, the waterproof and breathable membrane 16, the first insulation wall 13 on the north side and the second insulation walls 14 on the east and west sides. Figure 4 As shown, due to the shielding of the photovoltaic panel 15, the bottom of the photovoltaic panel 15 is not illuminated by sunlight, and a shade greenhouse is formed, that is, the first space 17 is a shade greenhouse.

[0037] The first greenhouse film 11, the waterproof breathable membrane 16, the first insulation wall 13 on the north side and the second insulation walls 14 on the east and west sides form a second space 18. Since the first greenhouse film 11 is arranged toward the south, sunlight can shine in, that is, the second space 18 is a sunny greenhouse. The first space 17 and the second space 18 form two separate yin and yang spaces respectively. The waterproof breathable membrane 16 is a polymer membrane, which prevents larger water molecules from passing through, but allows smaller water vapor and gas molecules to pass through. The first space 17 and the second space 18 exchange energy through the waterproof breathable membrane 16.

[0038] Two-way fans 19 are provided on the first insulation wall 13 and the second insulation wall 14 in the first space 17. The number of the two-way fans 19 can be set according to the planting area of ​​the greenhouse. In the present embodiment, preferably, a plurality of two-way fans 19 are evenly distributed on the first insulation wall 13 on the north side, and one is provided on each of the second insulation walls 14 on the east and west sides.

[0039] According to the principle of aerodynamics, sunlight passes through the first greenhouse film 11 to heat the ground and the planting space, causing the temperature in the second space 18 to rise and the gas to rise. Because the second space 18 is a closed space, the temperature rises faster, and the second space 18 on the sunny side and the first space 17 on the shady side automatically exchange energy through the waterproof and breathable membrane 16. At the same time, the first space 17 on the shady side forms an energy exchange space with the outside space through the two-way fan 19.

[0040] Temperature and energy are very important factors in the growth process of crops. The change in temperature required by any organism is a slow adaptation process. The rapid increase or decrease in the surrounding temperature will have a bad effect on the growth of crops. By setting the first space 17 on the shady side, the waterproof breathable membrane 16, and the second space 18 on the sunny side, the energy-temperature conversion of these three spaces can be realized automatically, and this energy-temperature conversion is a uniform process. Hot gas rises and colder gas falls. The waterproof breathable membrane exchanges the gas, but the water vapor is not lost and still flows into the planting shed, which improves the energy exchange efficiency and provides a more stable environment for the growth of crops.

[0041] like Figure 4 As shown, in some embodiments, an arc-shaped second greenhouse film 21 is provided in the second space 18, the second greenhouse film 21 is rolled up by a first reel 22, the second greenhouse film 21 is arranged close to the first greenhouse film 11, the second greenhouse film 21 is provided with an arc-shaped first quilt layer 23 close to the first thermal insulation wall 13, the first quilt layer 23 is rolled up by a second reel 24, and the second greenhouse film 21 and the first quilt layer 23 form a semicircular third space 20. The second greenhouse film 21 can be replaced according to the type of crops planted in the third space 20. For example, if blueberries are planted in the third space 20, the second greenhouse film 21 can be replaced with a blue film because blueberries like blue light, or if fungi are planted in the third space 20, the second greenhouse film 21 can be replaced with a black film because fungi like shade, so that the third space 20 forms an environment without sunlight.

[0042] By separately setting up a third space 20 surrounded by a second greenhouse film 21 and a first quilt layer 23 in the second space 18, a classified and zoned planting method in the solar greenhouse is achieved. The planting environment of the third space 20 can be arbitrarily set according to different crops planted, thereby improving the utilization rate of the solar greenhouse.

[0043] A second quilt layer 25 is disposed outside the second greenhouse film 21, and the second quilt layer 25 is rolled up by a third reel 26. The second quilt layer 25 can keep the third space 20 warm or shield it, so that the third space 20 forms an environment without sunlight.

[0044] like Figure 5As shown, in order to improve the stability of temperature and air circulation in the solar greenhouse, a U-shaped tube 27 is provided on the inner side of the first heat-insulating wall 13, and two inlets 28 are provided at the bottom of the U-shaped tube 27, and outlets 29 at both ends extend out of the greenhouse. The U-shaped tube 27 has two functions. First, when a relatively high temperature is required in the solar greenhouse in winter, the heating furnace can be used to pass hot flue gas into the two inlets 28 to heat the U-shaped tube 27, thereby dissipating heat into the solar greenhouse and increasing the temperature in the solar greenhouse; second, when the solar greenhouse needs more ventilation in summer or when the weather is hot, a fan can be added at the position of the outlet 29, and the U-shaped tube 27 can be used to change the air and ventilate the solar greenhouse.

[0045] like Figures 1 to 3 As shown, in some embodiments, a fermentation tank 31 and an energy storage water pipe 41 are arranged in the second space 18, and the fermentation tank 31 includes a clean water area 32 and an organic matter area 33. The substances in the clean water area 32 and the organic matter area 33 can be exchanged to achieve integrated water-fertilizer fermentation. There are multiple energy storage water pipes 41, and the multiple energy storage water pipes 41 are interconnected. The water inlet end of the energy storage water pipe 41 is connected to the clean water area 32 of the fermentation tank 31 through the water inlet pipe 42, and the water outlet end of the energy storage water pipe 41 is connected to the clean water area 32 of the fermentation tank 31 through the water outlet pipe 43. A circulating pump 44 is connected to the water inlet pipe 42 so that the water in the clean water area 32 circulates between the clean water area 32 and the energy storage water pipe 41, and a first filter 45 is arranged between the water inlet pipe 42 and the circulating pump 44.

[0046] In some preferred embodiments, the energy storage water pipe 41 is a black PVC pipe, which can better absorb the heat of sunlight. The length of the energy storage water pipe 41 is set to the length of the solar greenhouse in the east-west direction minus 4 meters, and the fermentation tank 31 is set on one side of the length direction of the solar greenhouse. The number of energy storage water pipes 41 is set according to the length and volume of the solar greenhouse, and is preferably set to 4-8.

[0047] In this embodiment, water is added to the clean water area 32, and the water in the clean water area 32 flows into the energy storage water pipe 41 through the circulating pump 44 on the water inlet pipe 42. During the day, the black energy storage water pipe 41 absorbs heat after being exposed to the sun, and the water in the energy storage water pipe 41 flows back to the clean water area 32 for storage after heating up. When the outdoor temperature drops at night, the high-temperature water in the clean water area 32 continues to be pumped into the energy storage water pipe 41 through the circulating pump 44 to release heat to the second space 18 of the solar greenhouse, which is the same as the principle of the heating pipe in the north, and increases the temperature in the solar greenhouse. Since the energy storage water pipe 41 is relatively long, taking the energy storage water pipe 41 of 100 meters as an example, the diameter of the energy storage water pipe 41 is selected to be 10-20 cm, the number is selected to be 3-6, and the water storage capacity in the energy storage water pipe 41 is 8-20 cubic meters of water. By providing a fermentation tank 31, an energy storage water pipe 41 and a circulation pump 44, water circulates between the fermentation tank 31 and the energy storage water pipe 41 to form a heat absorption and heat release cycle, thereby solving the problem of temperature rise in the solar greenhouse after the outdoor temperature drops at night, saving energy and improving energy utilization.

[0048] At the same time, when it is approaching summer or the temperature in the solar greenhouse is high due to high sunlight intensity, low-temperature water can be added to the clean water area 32, and the low-temperature water can be circulated between the fermentation tank 31 and the energy storage water pipe 41 through the circulation pump 44, which can also reduce the temperature in part of the solar greenhouse.

[0049] like Figure 2 and Figure 3As shown, preferably, the energy storage water pipe 41 is set at a position 10 cm above the ground, the energy storage water pipe 41 is set along the east-west direction of the solar greenhouse, and the energy storage water pipe 41 is set close to the first greenhouse film 11 to absorb the heat of sunlight. The bottom of the energy storage water pipe 41 is connected to multiple drip irrigation pipes 46, each drip irrigation pipe 46 is connected to multiple drip irrigation belts 47, and each drip irrigation pipe 46 is provided with a first valve 48. The number of drip irrigation pipes 46 and drip irrigation belts 47 is set according to the type of crops planted in the solar greenhouse. In this embodiment, the drip irrigation pipe 46 and the drip irrigation belt 47 are arranged at the bottom of the energy storage water pipe 41 for two purposes: first, organic matter is put into the organic matter area 33 of the fermentation tank 31, and the water heated by the energy storage water pipe 41 after absorbing heat flows into the organic matter area 33 and the clean water area 32 at the same time, and the organic matter in the organic matter area 33 is fermented. The fermentation can make the organic matter quickly decompose into small molecular fertilizers, and the small molecular fertilizers are dissolved in the water of the clean water area 32. The small molecular fertilizer water first passes through the first filter 4 5 filtration, the first filter 45 is used to filter large particles of organic matter and impurities in the fertilizer water, and only small molecule fertilizer water is allowed to pass through. The filtered small molecule fertilizer water is pumped into the energy storage water pipe 41 through the circulation pump 44. At this time, the first valve 48 can be opened, and the small molecule fertilizer water in the energy storage water pipe 41 is drip-irrigated to the roots of crops in the greenhouse through the drip irrigation pipe 46 and the drip irrigation belt 47 to improve the fertilization effect. The energy storage water pipe 41 can not only achieve the role of energy storage, but also fertilize crops. Secondly, when no organic matter is put into the fermentation tank 31, when the water temperature in the energy storage water pipe 41 is suitable, it can also be directly drip-irrigated to the crops, and water can be supplied to the crops at any time, and the drip irrigation effect is good. The photovoltaic panel 15 is set to provide electricity for the electrical equipment in the greenhouse, thereby improving energy utilization.

[0050] In this embodiment, by setting up a fermentation tank 31, a first filter screen 45, a circulation pump 44 and an energy storage water pipe 41, a circulation whole is formed between the fermentation tank 31, the energy storage water pipe 41 and the fermentation tank 31, and at the same time, many problems of energy storage, heat storage, water supply, fertilizer supply, heating and cooling in the solar greenhouse are solved.

[0051] Since gas is generated during the fermentation process in the fermentation tank 31, the gas is entrained in the water and fertilizer and enters the energy storage water pipe 41, causing the energy storage water pipe 41 to expand. In some embodiments, a plurality of exhaust holes 49 are evenly distributed on each energy storage water pipe 41, and a sealing cover 50 threadedly connected to the exhaust hole 49 is provided on the exhaust hole 49. The sealing cover 50 is unscrewed to exhaust gas to prevent expansion problems.

[0052] In order to further prevent impurities in the small molecule water fertilizer from clogging the energy storage water pipe 41, in some embodiments, such as Figure 2As shown, a second filter 36 is provided between the clean water area 32 and the organic area 33. The second filter 36 is used to filter large particles of organic matter and impurities in the fertilizer water, and only allow small molecule fertilizer water to pass through, so as to prevent impurities in the small molecule fertilizer water from clogging the energy storage water pipe 41. Specifically, the top of the clean water area 32 and the organic area 33 of the fermentation tank 31 are flush, and a top cover 34 is provided on the top of the clean water area 32 and the organic area 33. The top cover 34 covers the fermentation tank 31 and seals it to prevent the odor in the fermentation tank 31 from escaping. When it is necessary to clean the inside of the fermentation tank 31, the top cover 34 can be opened for easy cleaning. The bottom of the organic area 33 is lower than the bottom of the clean water area 32. After the organic matter is placed in the organic area 33, fermentation is carried out. The fermented small molecule fertilizer water slowly passes through the second filter 36 and overflows into the clean water area 32.

[0053] In some other embodiments, a heating rod 35 is provided at the bottom of the clean water area 32 or the organic matter area 33 alone, or at the bottom of the clean water area 32 and the organic matter area 33. On the one hand, the heating rod 35 can heat the organic matter and speed up the fermentation speed; on the other hand, when the outdoor temperature is low, the heating rod 35 can be turned on to heat the water in the clean water area 32, so that the water temperature rises rapidly, and the heat dissipated by the circulation of the energy storage water pipe 41 can quickly increase the temperature in the greenhouse. At the same time, heat will be generated during the fermentation process. The heat in the fermentation process, the energy storage heat of the energy storage water pipe 41 during the day, and the heat energy heated by the heating rod 35, these three combined to provide greater heat energy for the energy storage water pipe 41, can quickly increase the temperature in the greenhouse when the outdoor temperature is low.

[0054] In order to further increase the fermentation speed, an oxygen supply pipe 38 is provided on the top cover 34. One end of the oxygen supply pipe 38 is connected to the oxygen supplier, and the other end extends into the organic matter area 33 to inject oxygen into the organic matter area 33. High-oxygen fermentation can quickly decompose organic matter into small molecular fertilizers.

[0055] A lot of gas will be generated during the fermentation process in the organic area 33. In some embodiments, an exhaust pipe 37 is provided on the side wall of the organic area 33. One end of the exhaust pipe 37 is connected to the organic area 33, and the other end extends to the outside of the greenhouse to discharge the gas in the organic area 33 to the outside.

[0056] like Figure 4 As shown, in some embodiments, the energy storage water pipe 41 is disposed between the first greenhouse film 11 and the second greenhouse film 21 so that the energy storage water pipe 41 can absorb more heat from the sunlight.

[0057] like Figure 1As shown, in some embodiments, a rainwater collection pool 51 is provided on the outside of the first greenhouse film 11, the rainwater collection pool 51 is provided below the ground, and is connected to the bottom of the first greenhouse film 11. A third filter screen 52 is provided on the top of the rainwater collection pool 51, and a side wall of the rainwater collection pool 51 is connected to a pumping pipe 53. The rainwater collection pool 51 is provided to collect rainwater, and the third filter screen 52 filters leaves and other debris in the rainwater. After the rainwater is collected, it can be filtered and used for irrigation in the greenhouse, saving water resources.

[0058] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-layer film photovoltaic solar greenhouse for energy exchange, characterized in that: include: A first greenhouse film (11) and a shed (12), wherein the first greenhouse film (11) is suitable for covering the south-facing side of the shed (12), a first thermal insulation wall (13) is provided on the north-facing side of the shed (12), second thermal insulation walls (14) are provided on both sides of the shed (12) in the east-west direction, an inclined photovoltaic panel (15) is provided on the top of the shed (12) as a roof, and thermal insulation panels are also provided on the outer sides of the first thermal insulation wall (13) and the second thermal insulation wall (14); A waterproof and breathable membrane (16) is laid below the photovoltaic panel (15), so that a first space (17) is enclosed between the photovoltaic panel (15), the waterproof and breathable membrane (16), the first thermal insulation wall (13) on the north side, and the second thermal insulation walls (14) on the east and west sides, and a second space (18) is enclosed between the first greenhouse film (11), the waterproof and breathable membrane (16), the first thermal insulation wall (13) on the north side, and the second thermal insulation walls (14) on the east and west sides, wherein the waterproof and breathable membrane (16) is a polymer membrane, and the first space (17) and the second space (18) exchange energy through the waterproof and breathable membrane (16); The first thermal insulation wall (13) and the second thermal insulation wall (14) in the first space (17) are provided with bidirectional fans (19).

2. The double-layer film photovoltaic solar greenhouse for energy exchange according to claim 1, characterized in that: An arc-shaped second greenhouse film (21) is provided in the second space (18), and the second greenhouse film (21) is rolled up by a first reel (22). The second greenhouse film (21) is arranged close to the first greenhouse film (11), and the second greenhouse film (21) is provided with an arc-shaped first quilt layer (23) close to the first thermal insulation wall (13). The first quilt layer (23) is rolled up by a second reel (24). The second greenhouse film (21) and the first quilt layer (23) enclose a semicircular third space (20).

3. The double-layer film photovoltaic solar greenhouse for energy exchange according to claim 2, characterized in that: A second quilt layer (25) is provided on the outer side of the second greenhouse film (21), and the second quilt layer (25) is rolled up by a third reel (26).

4. The double-layer film photovoltaic solar greenhouse for energy exchange according to claim 3 is characterized in that: A U-shaped tube (27) is provided on the inner side of the first heat-insulating wall (13), two inlets (28) are provided at the bottom of the U-shaped tube (27), and outlets (29) at both ends extend out of the greenhouse.

5. The double-layer film photovoltaic solar greenhouse for energy exchange according to any one of claims 1 to 4, characterized in that: The second space (18) is provided with: A fermentation tank (31), wherein the fermentation tank (31) comprises a clean water area (32) and an organic matter area (33), and substances in the clean water area (32) and the organic matter area (33) can be exchanged to achieve integrated water-fertilizer fermentation; A plurality of energy storage water pipes (41) are provided, and the plurality of energy storage water pipes (41) are interconnected. The water inlet end of the energy storage water pipe (41) is connected to the clean water area (32) of the fermentation tank (31) through a water inlet pipe (42), and the water outlet end of the energy storage water pipe (41) is connected to the clean water area (32) of the fermentation tank (31) through a water outlet pipe (43). A circulation pump (44) is connected to the water inlet pipe (42) so that water in the clean water area (32) circulates between the clean water area (32) and the energy storage water pipe (41). A first filter screen (45) is provided between the water inlet pipe (42) and the circulation pump (44).

6. The double-layer film photovoltaic solar greenhouse for energy exchange according to claim 5, characterized in that: The energy storage water pipe (41) is arranged at a distance of 10 cm from the ground, the energy storage water pipe (41) is arranged along the east-west direction of the second space (18), and the energy storage water pipe (41) is arranged close to the first greenhouse film (11) so as to absorb heat from sunlight; The bottom of the energy storage water pipe (41) is connected to a plurality of drip irrigation pipes (46), each of the drip irrigation pipes (46) is connected to a plurality of drip irrigation belts (47), and each of the drip irrigation pipes (46) is provided with a first valve (48); A plurality of exhaust holes (49) are evenly distributed on each of the energy storage water pipes (41), and a sealing cover (50) threadedly connected to the exhaust hole (49) is provided on the exhaust hole (49).

7. The double-layer film photovoltaic solar greenhouse for energy exchange according to claim 6, characterized in that: The tops of the clean water area (32) and the organic matter area (33) of the fermentation tank (31) are flush with each other, the tops of the clean water area (32) and the organic matter area (33) are provided with top covers (34), the bottom of the organic matter area (33) is lower than the bottom of the clean water area (32), a heating rod (35) is provided at the bottom of the clean water area (32) and / or the organic matter area (33), and a second filter screen (36) is provided between the clean water area (32) and the organic matter area (33); An exhaust pipe (37) is provided on the side wall of the organic matter area (33), one end of the exhaust pipe (37) is connected to the organic matter area (33), and the other end extends to the outside of the greenhouse; The top cover (34) is provided with an oxygen supply pipe (38), one end of which is connected to an oxygen supplier, and the other end of which extends into the organic matter area (33).

8. The double-layer film photovoltaic solar greenhouse for energy exchange according to claim 7, characterized in that: A rainwater collection pool (51) is provided on the outside of the first greenhouse film (11). The rainwater collection pool (51) is arranged below the ground and is connected to the bottom of the first greenhouse film (11). A third filter screen (52) is provided on the top of the rainwater collection pool (51). The side wall of the rainwater collection pool (51) is connected to a water pump (53).

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