Multifunctional graphene warming and heat preservation equipment for sunlight greenhouse

Abstract

The invention discloses multifunctional graphene warming and heat preservation equipment for a sunlight greenhouse, and relates to the technical field of greenhouse planting, the multifunctional graphene warming and heat preservation equipment comprises a greenhouse and a hollow wall fixed on the side surface of the greenhouse, and a temperature control mechanism for warming and heat preservation is arranged on the side surface of the hollow wall; the top of the greenhouse is provided with a plurality of air exchange mechanisms used for conducting air exchange on the interior of the greenhouse. A refraction mechanism for improving the temperature increasing efficiency of the temperature control mechanism is arranged at the top of the air exchange mechanism; the refraction mechanism comprises refraction windows rotationally mounted at the tops of the air exchange windows; air exchange is conducted on the interior of the greenhouse through rotation of the air exchange mechanism, meanwhile, sunlight is refracted to the surface of the temperature control mechanism through rotation of the refraction mechanism, and the temperature increasing and heat preservation efficiency of the temperature control mechanism is improved. The multifunctional graphene heating and heat preservation equipment for the solar greenhouse has the effects of high operation efficiency and multifunctionality.

Description

Technical Field

[0001] The present invention relates to the technical field of greenhouse planting, and in particular to a multifunctional graphene temperature increasing and heat preservation device for a solar greenhouse. Background Art

[0002] Solar greenhouse is the abbreviation of energy-saving solar greenhouse, also known as warm shed. It consists of two side gables, a protective rear wall, a supporting frame and covering materials. It is a type of greenhouse unique to northern my country. It is a greenhouse that is not heated indoors. It absorbs solar energy through the rear wall to store and release heat, maintaining a certain temperature level indoors to meet the needs of the growth of vegetable crops.

[0003] In order to improve the thermal insulation efficiency of solar greenhouses, most existing solar greenhouses will additionally install graphene heating wall panels on the rear wall to perform light-to-heat conversion through graphene materials; however, in actual use, such graphene heating and heat-insulating wall panels, on the one hand, when the equipment has sufficient sunshine time during the day, a large amount of heat surplus will be generated that cannot be fully utilized, resulting in a waste of resources; on the other hand, since the light angle will change accordingly with the change of time and season, it is impossible to effectively ensure that the graphene heating and heat-insulating wall panels are adaptively adjusted with the change of sunlight angle in different seasons and time periods, thereby affecting the working efficiency of the equipment. Summary of the invention

[0004] The invention discloses a multifunctional graphene heating and heat preservation device for a solar greenhouse, aiming to solve the technical problems that, when the existing graphene heating and heat preservation device for a solar greenhouse is actually used, on the one hand, when the device has sufficient sunshine time during the day, a large amount of heat surplus is generated which cannot be fully utilized, thereby causing a waste of resources; on the other hand, the device cannot adaptively adjust the light receiving angle as the sunshine angle changes, thereby affecting the working efficiency of the device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A multifunctional graphene heating and heat preservation device for a solar greenhouse, comprising a greenhouse and a hollow wall fixed to the side of the greenhouse, wherein a temperature control mechanism for heating and heat preservation is arranged on the side of the hollow wall, wherein the temperature control mechanism comprises a coiled curved pipe fixed inside the hollow wall, and a graphene heating wall is horizontally distributed on the outer side of the coiled curved pipe, wherein the graphene heating wall is fixed to the side of the hollow wall and performs heat conduction on cold water inside the coiled curved pipe;

[0007] The top of the greenhouse is provided with a plurality of ventilation mechanisms for replacing air inside the greenhouse, and the ventilation mechanisms include a plurality of frames fixedly mounted on the top of the greenhouse, and a ventilation window is rotatably mounted on the top of each of the frames;

[0008] A refraction mechanism is provided on the top of the air exchange mechanism to improve the heating efficiency of the temperature control mechanism, and the refraction mechanism includes a refraction window rotatably mounted on the top of each of the air exchange windows;

[0009] The air inside the greenhouse is exchanged by rotating the air exchange mechanism, and the sunlight is refracted onto the surface of the temperature control mechanism by rotating the refraction mechanism, thereby improving the heating and heat preservation efficiency of the temperature control mechanism.

[0010] A temperature control mechanism is provided on the side of the hollow wall for heating and preserving the interior of the greenhouse, and sunlight is irradiated on the graphene heating wall inside the temperature control mechanism, and light-to-heat conversion is performed through the graphene heating wall, thereby preserving and warming the interior of the greenhouse. At the same time, the surplus heat generated during the operation of the graphene heating wall can be stored by the temperature control mechanism, and thus used for heating and preserving at night, thereby improving the energy utilization rate of traditional equipment. The refraction mechanism additionally arranged on the top of the greenhouse can cooperate with the operation of the air exchange mechanism to realize various working modes such as air exchange refraction, non-air exchange refraction, and air exchange without refraction, and refract the sunlight onto the graphene heating wall, thereby further improving the thermal insulation and heating efficiency of the equipment.

[0011] In a preferred embodiment, the temperature control mechanism also includes a water tank distributed at the bottom of the coiled curved pipe, a first control pump and a second control pump are respectively provided at both ends of the coiled curved pipe, an insulation zone and a water storage zone are respectively provided at both ends of the interior of the water tank, the first control pump is connected to the interior of the insulation zone, and the second control pump is connected to the interior of the water storage zone.

[0012] By additionally providing a coiled curved pipe structure on the side of the graphene heating wall, the operation of the second control pump is used to guide the cold water inside the water storage area into the interior of the coiled curved pipe, and the operation of the graphene heating wall is coordinated to heat the cold water inside the coiled curved pipe, and then the first control pump is used to store the hot water inside the insulation area, so that the hot water can be used to transfer heat to the graphene heating wall at night, thereby utilizing the surplus heat when the graphene heating wall is running during the day, thereby improving the energy utilization rate of traditional equipment.

[0013] In a preferred solution, the air exchange mechanism further includes a first glass fixedly installed inside the air exchange window, a first electric push rod rotatably installed on a side of the frame, and an output end of the first electric push rod is connected to the air exchange window.

[0014] By providing an air exchange window structure rotatably mounted on the top of the frame, the output shaft of the first electric push rod is extended to push the air exchange window, causing the air exchange window to rotate around the frame, thereby opening the air outlet and replacing the air inside the greenhouse, thereby ensuring the perfection of the functionality of the traditional solar greenhouse.

[0015] In a preferred embodiment, the refraction mechanism further comprises a second electric push rod fixedly mounted on the outer side of each of the refraction windows, the output end of the second electric push rod horizontally penetrates into the interior of the refraction window, a connecting member is fixedly mounted on the end of the output shaft of the second electric push rod, a lower sliding groove is provided at the top of the air exchange window, an upper sliding groove is provided at the bottom of the refraction window, an inclined surface is provided at the bottom of the refraction window, the upper sliding groove is connected with the end of the inclined surface, the bottom of the connecting member is slidably distributed inside the lower sliding groove, the top of the connecting member is slidably distributed inside the upper sliding groove, a flexible lens is fixedly mounted inside the refraction window, one end of the flexible lens is fixed to the inner side of the refraction window, the other end of the flexible lens horizontally penetrates into the interior of the upper sliding groove and is slidably connected to the upper sliding groove, and at the same time, the end of the flexible lens is squeezed and restricted by the connecting member, and when the refraction window and the air exchange window are closed, the flexible lens is in a folded state and is squeezed and contacted with the top of the first glass.

[0016] A refractive window structure is further provided on the top of the air exchange window, and a second electric push rod is used to drive the connecting member to move horizontally along the interior of the upper sliding groove and the lower sliding groove. The front connecting member moves along the upper sliding groove to complete the unwinding of the folded flexible lens, and the rear connecting member moves along the inclined surface to complete the squeezing of the refractive window, so that the refractive window rotates around the air exchange window, and at the same time drives the unrolled flexible lens to face the direction of sunlight and refracts sunlight onto the graphene heating wall, thereby increasing the light receiving time of the graphene heating wall and improving the heat preservation and warming efficiency of the device for the solar greenhouse.

[0017] In a preferred solution, lower connecting grooves are symmetrically provided on both sides of the bottom of the lower sliding groove, an axle rod is provided at the bottom of the connecting member, and the axle rod is slidably connected to the interior of the lower connecting groove, an upper connecting groove is provided through the interior of the upper sliding groove and the inclined surface, a sliding rod is provided at the top of the connecting member, and the sliding rod is slidably connected to the interior of the upper connecting groove, and an extrusion rod is provided on the side of the connecting member, and the extrusion rod is extruded and contacted with the inclined surface.

[0018] By symmetrically opening lower connecting grooves on both sides of the bottom of the lower sliding groove, and opening an upper connecting groove through the upper sliding groove and the inside of the inclined surface, the lower connecting groove, the upper connecting groove and the connecting component cooperate with each other to ensure the structural stability between the refraction window and the air exchange window.

[0019] From the above, it can be seen that the multifunctional graphene heating and heat preservation equipment for solar greenhouse provided by the present invention has the following technical effects.

[0020] First, by additionally providing a coiled curved pipe structure on the side of the graphene heating wall, the operation of the second control pump is used to guide the cold water inside the water storage area into the coiled curved pipe, and the operation of the graphene heating wall is coordinated to heat the cold water inside the coiled curved pipe, and then the first control pump is used to store the hot water inside the insulation area, so that the hot water is used to transfer heat to the graphene heating wall at night, and the inside of the greenhouse is insulated and heated by the graphene heating wall, and the heat surplus of the graphene heating wall during the daytime operation is utilized, thereby reducing the loss rate of heat energy of the traditional graphene heating wall, and at the same time reducing the power consumption required for the traditional graphene heating wall to perform electric heat conversion at night, thereby improving the energy utilization rate of traditional equipment and reducing operating costs.

[0021] Secondly, a ventilation window structure rotatably mounted on the top of the frame is provided at the top of the greenhouse, and the output shaft of the first electric push rod is extended to push the ventilation window, so that the ventilation window rotates around the frame, thereby opening the air outlet and replacing the air for the interior of the greenhouse, thereby ensuring the functionality of the traditional solar greenhouse, and a refractive window structure is further provided at the top of the ventilation window, and the second electric push rod is used to drive the connecting member to move horizontally along the interior of the upper sliding groove and the lower sliding groove, and then the front connecting member moves along the upper sliding groove to complete the unwinding of the folded flexible lens, and the rear connecting member moves along the inclined surface to complete the extrusion of the refractive window, so that the refractive window rotates around the ventilation window, and at the same time drives the unwinding flexible lens toward the direction of sunlight and refracts the sunlight onto the graphene heating wall, so that the device can perform multiple working modes such as ventilation without refraction, ventilation refraction, and no ventilation but refraction, thereby increasing the illumination time of the graphene heating wall and further improving the insulation and warming efficiency of the solar greenhouse by the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the internal structure of the hollow wall proposed by the present invention.

[0024] Figure 3 This is a schematic diagram of the temperature control mechanism structure proposed by the present invention.

[0025] Figure 4 This is a schematic diagram of the greenhouse top structure proposed by the present invention.

[0026] Figure 5 This is an exploded view of the frame top structure proposed by the present invention.

[0027] Figure 6 This is a schematic diagram of the internal structure of the refraction window proposed by the present invention.

[0028] Figure 7 This is a cross-sectional view of the side structure of the refraction window proposed by the present invention.

[0029] Figure 8 The present invention proposes Figure 7 A magnified view of the structure at center.

[0030] Fig. 9 This is a schematic diagram of the bottom structure of the refractive window proposed by the present invention.

[0031] Fig.10 The present invention proposes Fig. 9 A magnified view of the structure at point B.

[0032] Fig.11 This is a schematic diagram of the top structure of the air exchange window proposed by the present invention.

[0033] Fig.12 This is a cross-sectional view of the air exchange window structure proposed by the present invention.

[0034] Fig.13 This is a schematic diagram of the connecting component structure proposed by the present invention.

[0035] Fig.14 This is a diagram of the refraction angle of light when the refraction mechanism proposed by the present invention is in operation.

[0036] Fig.15 This is a cross-sectional view of the operating state of the refraction mechanism proposed by the present invention.

[0037] In the figure: 1. greenhouse; 2. hollow wall; 3. temperature control mechanism; 301. coiled bend pipe; 302. water tank; 303. first control pump; 304. second control pump; 305. insulation zone; 306. water storage zone; 307. graphene heating wall; 4. air exchange mechanism; 401. frame; 402. air exchange window; 403. first glass; 404. first electric push rod; 405. connecting rod; 5. refraction mechanism; 501. refraction window; 502. second electric push rod; 503. connecting member; 5031. sliding rod; 5032. extrusion rod; 5033. shaft rod; 504. lower sliding groove; 5041. lower connecting groove; 505. upper sliding groove; 5051. upper connecting groove; 506. inclined surface; 507. flexible lens; 508. spring; 509. second glass; 6. straight groove. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] The multifunctional graphene temperature increasing and heat preservation equipment for a solar greenhouse disclosed by the present invention is mainly used for heat preservation and heat preservation scenarios in a solar greenhouse.

[0040] Reference Figures 1 to 15 A multifunctional graphene heating and heat preservation device for a solar greenhouse comprises a greenhouse 1, a hollow wall 2 fixed to the side of the greenhouse 1, a temperature control mechanism 3 for heating and heat preservation is arranged on the side of the hollow wall 2, the temperature control mechanism 3 comprises a coiled curved pipe 301 fixed inside the hollow wall 2, a graphene heating wall 307 is horizontally distributed on the outer side of the coiled curved pipe 301, and the graphene heating wall 307 is fixed to the side of the hollow wall 2 to conduct heat to the cold water inside the coiled curved pipe 301; a plurality of exchangers for replacing air inside the greenhouse 1 are arranged on the top of the greenhouse 1 The wind mechanism 4 includes a plurality of frames 401 fixedly mounted on the top of the greenhouse 1, and a ventilation window 402 is rotatably mounted on the top of each frame 401; a refraction mechanism 5 for improving the heating efficiency of the temperature control mechanism 3 is arranged on the top of the wind mechanism 4, and the refraction mechanism 5 includes a refraction window 501 rotatably mounted on the top of each ventilation window 402; the interior of the greenhouse 1 is ventilated by rotating the wind mechanism 4, and at the same time, the refraction mechanism 5 is rotated to refract sunlight onto the surface of the temperature control mechanism 3, thereby improving the heating and heat preservation efficiency of the temperature control mechanism 3.

[0041] In this embodiment: On a sunny day, as the sun rises, sunlight will pass through the transparent film covering the surface of the greenhouse 1 and irradiate the surface of the temperature control mechanism 3. At this time, the graphene heating wall 307 located on the side of the hollow wall 2 will absorb the photons in the sunlight. The absorbed photons will excite the electrons in the graphene and convert them into lattice vibrations (heat) through non-radiative relaxation (electron-phonon interaction), thereby causing the entire graphene heating wall 307 to generate heat and heat up and insulate the interior of the greenhouse 1. As the graphene heating wall 307 continues to operate, the excess heat generated at this time will be stored through the temperature control mechanism 3. At night, the stored heat will continue to be conducted through the graphene heating wall 307. To the interior of the greenhouse 1. During this process, if the heat generated by the self-heating of the temperature control mechanism 3 does not reach the set value, the control system starts the power supply additionally connected to the graphene heating wall 307 to provide low-voltage power supply to the graphene heating wall 307, thereby performing auxiliary electric heating; when the interior of the greenhouse 1 needs to replace the air, the operator starts the air exchange mechanism 4, causing an air exchange port to appear on the top of the greenhouse 1, thereby replacing the air inside the greenhouse 1; and in the case of sunny days, as the sun rises, the refraction mechanism 5 arranged on the top of the air exchange mechanism 4 will start itself, and refract the sunlight onto the graphene heating wall 307 while rotating with the light, thereby improving the light-to-heat conversion efficiency of the graphene heating wall 307.

[0042] Reference Figures 1 to 3In a preferred embodiment, the temperature control mechanism 3 also includes a water tank 302 distributed at the bottom of the winding curved pipe 301, and the first control pump 303 and the second control pump 304 are respectively provided at both ends of the winding curved pipe 301, and the insulation zone 305 and the water storage zone 306 are respectively provided at both ends inside the water tank 302, the first control pump 303 and the insulation zone 305 are internally connected, and the second control pump 304 and the water storage zone 306 are internally connected.

[0043] On a sunny day, as the sun rises, sunlight will pass through the transparent film covering the surface of the greenhouse 1 and irradiate the surface of the temperature control mechanism 3. At this time, the graphene heating wall 307 located on the side of the hollow wall 2 generates heat and heats up and insulates the interior of the greenhouse 1. While the graphene heating wall 307 is running, the second control pump 304 is running and the first control pump 303 is closed, pumping the heat transfer medium located inside the water storage interval 306 into the interior of the winding bend pipe 301. As the graphene heating wall 307 continues to operate, the excess heat generated at this time will be transferred to the heat transfer medium through the winding bend pipe 301, thereby controlling the interior of the winding bend pipe 301. The heat-conducting medium is heated. After the heat-conducting medium reaches the specified temperature, the first control pump 303 is started to introduce the heated heat-conducting medium into the internal storage of the insulation zone 305. At night, the first control pump 303 is running and the second control pump 304 is closed to guide the high-temperature heat-conducting medium back to the inside of the winding bend pipe 301, and continue to conduct heat to the inside of the greenhouse 1 through the graphene heating wall 307. During this process, if the heat generated by the self-heating of the temperature control mechanism 3 does not reach the set value, the control system starts the power supply additionally connected to the graphene heating wall 307 to provide low-voltage power to the graphene heating wall 307, thereby performing auxiliary electric heating.

[0044] Among them, pressure relief valve assemblies are additionally provided at both ends of the coiled curved pipe 301. When the heat transfer medium is pumped from the coiled curved pipe 301 into the insulation zone 305 through the first control pump 303, negative pressure will gradually be generated inside the curved coil 301. At this time, the pressure relief valve assembly is started to balance the pressure inside the curved coil 301. Similarly, the same is true when the curved coil 301 and the water storage zone 306 are in operation.

[0045] Reference Figures 4 to 8 , Figure 11 to Figure 12 In a preferred embodiment, the air exchange mechanism 4 also includes an air exchange window 402 with a first glass 403 fixedly installed inside, a first electric push rod 404 rotatably installed on the side of a frame 401, and an output end of the first electric push rod 404 is connected to the air exchange window 402.

[0046] When the interior of the greenhouse 1 needs to be replaced with air, the operator starts the first electric push rod 404, causing the output shaft of the first electric push rod 404 to extend outward and push the air exchange window 402, causing the air exchange window 402 to drive the first glass 403 to rotate around the side of the frame 401, thereby causing an air exchange port to appear on the top of the greenhouse 1, and replacing the air inside the greenhouse 1; wherein, the ends of several air exchange windows 402 are connected together with a connecting rod 405, and the end of the connecting rod 405 is rotatably connected to the output end of the first electric push rod 404, and the air exchange window 402 pushed by the first electric push rod 404 can drive the other several air exchange windows 402 to rotate synchronously through the connecting rod 405.

[0047] Reference Figure 1 , Figures 4 to 13 In a preferred embodiment, the refraction mechanism 5 further includes a second electric push rod 502 fixedly installed on the outer side of each refraction window 501, the output end of the second electric push rod 502 horizontally penetrates the inside of the refraction window 501, and a connecting member 503 is fixedly installed on the output shaft end of the second electric push rod 502. A lower sliding groove 504 is provided on the top of the air exchange window 402, and an upper sliding groove 505 is provided on the bottom of the refraction window 501. An inclined surface 506 is provided at the bottom of the refraction window 501, and the ends of the upper sliding groove 505 and the inclined surface 506 are connected. The bottom sliding distribution of the connecting member 503 Inside the lower sliding groove 504, the top of the connecting member 503 slides and is distributed inside the upper sliding groove 505. A flexible lens 507 is fixedly installed inside the refractive window 501. One end of the flexible lens 507 is fixed to the inner side of the refractive window 501, and the other end of the flexible lens 507 horizontally penetrates into the upper sliding groove 505 and is slidably connected to the upper sliding groove 505. At the same time, the end of the flexible lens 507 is squeezed and restricted by the connecting member 503. When the refractive window 501 and the air exchange window 402 are closed, the flexible lens 507 is in a folded state and squeezed and contacts the top of the first glass 403.

[0048] When it is necessary to increase the light receiving time and efficiency of the graphene heating wall 307, but there is no need to ventilate the interior of the greenhouse 1, the light-sensitive sensor additionally arranged on the side of the second electric push rod 502 is exposed to sunlight, which will drive the second electric push rod 502 to start, and the output end of the second electric push rod 502 will shrink, thereby driving the connecting member 503 to move horizontally along the interior of the upper sliding groove 505 and the lower sliding groove 504. While moving, the connecting member 503 will reduce the squeezing force on the flexible lens 507, causing the folded flexible lens 507 to slowly stretch until the flexible lens 507 is completely stretched along the interior of the refractive window 501. The connecting member 503 is unfolded, and at the same time, it moves to the connection point between the upper sliding groove 505 and the inclined surface 506. At this time, the connecting member 503 that continues to move will be squeezed and contacted with the inclined surface 506, thereby pushing the refraction window 501 to rotate around the air exchange window 402 through the inclined surface 506. The photosensor additionally arranged on the side of the second electric push rod 502 will sense the direct angle of sunlight and control the contraction amplitude of the output shaft of the second electric push rod 502, thereby driving the refraction window 501 and the stretched flexible lens 507 to rotate with the light, and at the same time refract the sunlight onto the graphene heating wall 307, thereby improving the light-to-heat conversion efficiency of the graphene heating wall 307;

[0049] When the operator needs to increase the light receiving time and efficiency of the graphene heating wall 307 and ventilate the interior of the greenhouse 1, the control system remotely controls the second electric push rod 502 to start, and the output end of the second electric push rod 502 contracts, thereby driving the connecting member 503 to move horizontally along the interior of the upper sliding groove 505 and the lower sliding groove 504. While moving, the connecting member 503 will reduce the squeezing force on the flexible lens 507, causing the folded flexible lens 507 to slowly stretch until the flexible lens 507 is completely stretched along the interior of the refractive window 501. At the same time, the connecting member 503 moves to the upper sliding groove 505 and the oblique sliding groove 504. When the second electric push rod 502 is connected with the surface 506, the second electric push rod 502 stops running and maintains the current output shaft position, causing the flexible lens 507 to stretch but the refractive window 501 to remain motionless, and the control system starts the first electric push rod 404, causing the output shaft of the first electric push rod 404 to extend outward and push the air exchange window 402, causing the air exchange window 402 to drive the first glass 403 to rotate around the side of the frame 401, thereby causing an air exchange outlet to appear at the top of the greenhouse 1, and along with the rotation of the air exchange window 402, the stretched flexible lens 507 and the refractive window 501 at the top of the air exchange window 402 will rotate synchronously, thereby refracting sunlight onto the graphene heating wall 307.

[0050] A spring 508 is fixedly connected between the end of the flexible lens 507 and the upper sliding groove 505. When the output end of the second electric push rod 502 contracts, the connecting member 503 is driven to move horizontally along the interior of the upper sliding groove 505 and the lower sliding groove 504. While moving, the connecting member 503 reduces the squeezing force on the flexible lens 507. At this time, the folded flexible lens 507 is pushed by the stretched spring 508, so that it slowly stretches.

[0051] A second glass 509 is fixedly installed on the top of the refractive window 501, and the second glass 509 blocks the top of the flexible lens 507 to prevent debris from entering the interior of the refractive window 501, while not affecting the lighting inside the greenhouse 1; and a straight groove 6 is opened on the inner side of the refractive window 501, and one end of the flexible lens 507 is slidably connected to the interior of the straight groove 6 to maintain the stability of the flexible lens 507.

[0052] Further, it is supplemented that: lower connecting grooves 5041 are symmetrically provided on both sides of the bottom of the lower sliding groove 504, a shaft rod 5033 is provided at the bottom of the connecting member 503, and the shaft rod 5033 is slidably connected to the inside of the lower connecting groove 5041, an upper connecting groove 5051 is provided through the inside of the upper sliding groove 505 and the inclined surface 506, a sliding rod 5031 is provided on the top of the connecting member 503, and the sliding rod 5031 is slidably connected to the inside of the upper connecting groove 5051, and an extrusion rod 5032 is provided on the side of the connecting member 503, When the connecting member 503 is pulled by the output shaft of the second electric push rod 502, the shaft rod 5033 and the sliding rod 5031 at both ends of the connecting member 503 will slide along the inside of the lower connecting groove 5041 and the upper connecting groove 5051 respectively, without affecting the movement of the connecting member 503, while maintaining the stability of the refraction window 501, so that the refraction window 501 cannot rotate at will, and the pressing rod 5032 will press and contact the inclined surface 506, thereby pushing the refraction window 501 to flip upward, such as Fig.15 shown.

[0053] The application works in the following ways:

[0054] On a sunny day: sunlight will pass through the transparent film covering the surface of the greenhouse 1 and irradiate the graphene heating wall 307, so that the entire graphene heating wall 307 generates heat and heats up and insulates the interior of the greenhouse 1. While the graphene heating wall 307 is running, the second control pump 304 is running and the first control pump 303 is closed, pumping the heat-conducting medium inside the water storage area 306 into the inside of the winding bend pipe 301. As the graphene heating wall 307 continues to run, the excess heat generated at this time will be transferred to the heat-conducting medium through the winding bend pipe 301, thereby insulating the heat-conducting medium inside the winding bend pipe 301. Heating, after the heat-conducting medium reaches the specified temperature, the first control pump 303 is started to guide the heated heat-conducting medium into the internal storage of the insulation zone 305. At night, the first control pump 303 is running and the second control pump 304 is closed, and the high-temperature heat-conducting medium is guided back to the inside of the winding bend pipe 301, and continues to conduct heat to the inside of the greenhouse 1 through the graphene heating wall 307. In this process, if the heat generated by the self-heating of the temperature control mechanism 3 does not reach the set value, the control system starts the power supply additionally connected to the graphene heating wall 307 to provide low-voltage power supply to the graphene heating wall 307, thereby performing auxiliary electric heating;

[0055] When the operator only needs to ventilate the interior of the greenhouse 1 and it is in a cloudy environment: the control system starts the first electric push rod 404, causing the output shaft of the first electric push rod 404 to extend outward and push the air exchange window 402, causing the air exchange window 402 to drive the first glass 403 to rotate around the side of the frame 401, thereby causing an air exchange port to appear on the top of the greenhouse 1, and replacing the air inside the greenhouse 1;

[0056] When the operator needs to increase the light receiving time and efficiency of the graphene heating wall 307, and does not need to ventilate the interior of the greenhouse 1: as the sun rises, the photosensor additionally arranged on the side of the second electric push rod 502 comes into contact with the sunlight, and the control system drives the second electric push rod 502 to start, and the output end of the second electric push rod 502 contracts, thereby driving the connecting member 503 to move horizontally along the interior of the upper sliding groove 505 and the lower sliding groove 504. While moving, the connecting member 503 will reduce the squeezing force on the flexible lens 507, causing the folded flexible lens 507 to slowly stretch until the flexible lens 507 is completely stretched along the interior of the refractive window 501. At the same time, the connecting member 503 moves to the junction of the upper sliding groove 505 and the inclined surface 506. At this time, the connecting member 503 that continues to move will be squeezed and contacted with the inclined surface 506, thereby pushing the refraction window 501 to rotate around the air exchange window 402 through the inclined surface 506. The photosensor additionally arranged on the side of the second electric push rod 502 will sense the direct angle of sunlight and control the contraction amplitude of the output shaft of the second electric push rod 502, thereby driving the refraction window 501 and the stretched flexible lens 507 to rotate with the light, and at the same time refract the sunlight onto the graphene heating wall 307, thereby improving the light-to-heat conversion efficiency of the graphene heating wall 307. For example, the solar altitude angle of afternoon light in a certain place is -30°, and the refraction state of the refraction window 501 after expansion is as shown in the attached figure. Fig.14 As shown;

[0057] When the operator needs to increase the light receiving time and efficiency of the graphene heating wall 307 and needs to ventilate the interior of the greenhouse 1: the control system remotely controls the second electric push rod 502 to start, and the output end of the second electric push rod 502 contracts, thereby driving the connecting member 503 to move horizontally along the interior of the upper sliding groove 505 and the lower sliding groove 504. While moving, the connecting member 503 will reduce the squeezing force on the flexible lens 507, causing the folded flexible lens 507 to slowly stretch until the flexible lens 507 is completely stretched along the interior of the refractive window 501. At the same time, when the connecting member 503 moves to the junction of the upper sliding groove 505 and the inclined surface 506 , the second electric push rod 502 stops running and maintains the current output shaft position, causing the flexible lens 507 to stretch but the refractive window 501 to remain motionless, and the control system starts the first electric push rod 404, causing the output shaft of the first electric push rod 404 to extend outward and push the air exchange window 402, causing the air exchange window 402 to drive the first glass 403 to rotate around the side of the frame 401, thereby causing an air exchange outlet to appear at the top of the greenhouse 1, and along with the rotation of the air exchange window 402, the stretched flexible lens 507 and the refractive window 501 at the top of the air exchange window 402 will rotate synchronously, thereby refracting sunlight onto the graphene heating wall 307, thereby improving the light-to-heat conversion efficiency of the graphene heating wall 307.

[0058] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multifunctional graphene heating and heat preservation device for a solar greenhouse, comprising a greenhouse (1) and a hollow wall (2) fixed to the side of the greenhouse (1), characterized in that: A temperature control mechanism (3) for increasing temperature and maintaining heat is arranged on the side of the hollow wall (2), the temperature control mechanism (3) comprising a coiled curved pipe (301) fixed inside the hollow wall (2), a graphene heating wall (307) horizontally distributed outside the coiled curved pipe (301), the graphene heating wall (307) being fixed on the side of the hollow wall (2) to conduct heat to cold water inside the coiled curved pipe (301); The top of the greenhouse (1) is provided with a plurality of ventilation mechanisms (4) for replacing air inside the greenhouse (1), the ventilation mechanisms (4) comprising a plurality of frames (401) fixedly mounted on the top of the greenhouse (1), and a ventilation window (402) is rotatably mounted on the top of each of the frames (401); A refraction mechanism (5) for improving the heating efficiency of the temperature control mechanism (3) is arranged on the top of the air exchange mechanism (4), and the refraction mechanism (5) comprises a refraction window (501) rotatably mounted on the top of each of the air exchange windows (402); The air inside the greenhouse (1) is exchanged by rotating the air exchange mechanism (4), and the sunlight is refracted onto the surface of the temperature control mechanism (3) by rotating the refraction mechanism (5), thereby improving the heating and heat preservation efficiency of the temperature control mechanism (3).

2. The multifunctional graphene heating and heat preservation equipment for solar greenhouse according to claim 1, characterized in that: The temperature control mechanism (3) further comprises a water tank (302) distributed at the bottom of the coiled curved pipe (301), a first control pump (303) and a second control pump (304) are respectively arranged at both ends of the coiled curved pipe (301), a heat preservation zone (305) and a water storage zone (306) are respectively arranged at both ends inside the water tank (302), the first control pump (303) and the interior of the heat preservation zone (305) are connected in a through-connection manner, and the second control pump (304) and the interior of the water storage zone (306) are connected in a through-connection manner.

3. The multifunctional graphene heating and heat preservation equipment for solar greenhouse according to claim 1, characterized in that: The ventilation mechanism (4) further comprises a first glass (403) fixedly mounted inside the ventilation window (402), a first electric push rod (404) rotatably mounted on a side surface of the frame (401), and an output end of the first electric push rod (404) is connected to the ventilation window (402).

4. The multifunctional graphene heating and heat preservation equipment for solar greenhouse according to claim 3, characterized in that: The refraction mechanism (5) further comprises a second electric push rod (502) fixedly mounted on the outer side of each of the refraction windows (501); the output end of the second electric push rod (502) horizontally penetrates into the interior of the refraction window (501); a connecting member (503) is fixedly mounted on the output shaft end of the second electric push rod (502); a lower sliding groove (504) is provided at the top of the air exchange window (402); an upper sliding groove (505) is provided at the bottom of the refraction window (501); an inclined surface (506) is provided at the bottom of the refraction window (501); the upper sliding groove (505) and the end of the inclined surface (506) are connected; the bottom of the connecting member (503) slides in the lower sliding groove (504); 4), the top of the connecting member (503) is slidably distributed inside the upper sliding groove (505), a flexible lens (507) is fixedly installed inside the refractive window (501), one end of the flexible lens (507) is fixed to the inner side of the refractive window (501), the other end of the flexible lens (507) horizontally penetrates into the interior of the upper sliding groove (505) and is slidably connected to the upper sliding groove (505), and at the same time, the end of the flexible lens (507) is squeezed and restricted by the connecting member (503), and when the refractive window (501) and the air exchange window (402) are closed, the flexible lens (507) is in a folded state and squeezes and contacts the top of the first glass (403).

5. The multifunctional graphene heating and heat preservation equipment for solar greenhouse according to claim 4, characterized in that: A spring (508) is fixedly connected between the end of the flexible lens (507) and the upper sliding groove (505).

6. The multifunctional graphene heating and heat preservation equipment for solar greenhouse according to claim 4, characterized in that: A second glass (509) is fixedly mounted on the top of the refractive window (501), and the second glass (509) shields the top of the flexible lens (507).

7. The multifunctional graphene heating and heat preservation equipment for solar greenhouse according to claim 4, characterized in that: The bottom of the lower sliding groove (504) is symmetrically provided with lower connecting grooves (5041), and the bottom of the connecting member (503) is provided with a shaft rod (5033), and the shaft rod (5033) is slidably connected to the inside of the lower connecting groove (5041).

8. The multifunctional graphene heating and heat preservation equipment for solar greenhouse according to claim 4, characterized in that: An upper connecting groove (5051) is provided inside the upper sliding groove (505) and the inclined surface (506), a sliding rod (5031) is provided on the top of the connecting member (503), and the sliding rod (5031) is slidably connected to the inside of the upper connecting groove (5051), and an extrusion rod (5032) is provided on the side of the connecting member (503), and the extrusion rod (5032) is pressed and contacted with the inclined surface (506).

9. The multifunctional graphene heating and heat preservation equipment for solar greenhouse according to claim 4, characterized in that: A straight groove (6) is provided on the inner side of the refractive window (501), and one end of the flexible lens (507) is slidably connected to the inside of the straight groove (6).

10. The multifunctional graphene heating and heat preservation equipment for solar greenhouse according to claim 3, characterized in that: The ends of the plurality of air exchange windows (402) are connected to a connecting rod (405) through which the ends of the connecting rod (405) are connected in rotation to the output end of the first electric push rod (404).

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