CN209964774U

CN209964774U - Active lighting and heat storage type sunlight greenhouse

Info

Publication number: CN209964774U
Application number: CN201920640502.9U
Authority: CN
Inventors: 宋明军; 赵鹏; 王晓巍; 张旭林; 张俊峰; 蒯佳琳
Original assignee: Vegetable Research Institute Gansu Academy Of Agricultural Sciences
Current assignee: Vegetable Research Institute Gansu Academy Of Agricultural Sciences
Priority date: 2019-05-07
Filing date: 2019-05-07
Publication date: 2020-01-21
Anticipated expiration: 2029-05-07

Abstract

The utility model provides an initiative daylighting heat accumulation type sunlight greenhouse, this initiative daylighting heat accumulation type sunlight greenhouse includes: a combined framework; wall thermal insulation material; the elevation angle adjustable back roof is characterized by comprising an elevation angle adjustable back roof, wherein a reflecting surface is arranged on one side of the elevation angle adjustable back roof facing to a lighting roof, one end of the elevation angle adjustable back roof is hinged to a back wall, and the control system is used for adjusting the elevation angle of the back roof to actively light and secondarily reflect the light; the solar active heat accumulation and release system comprises a solar heat collector, a heat accumulation water tank, a water feeding pipe, a water return pipe and a submersible pump, wherein the solar heat collector is positioned on the inner side of a rear wall body, and a heat collection surface faces to a lighting roof. The active daylighting heat accumulation type sunlight greenhouse actively collects sunlight, improves sunlight utilization capacity, actively accumulates heat release efficiency, can improve daylighting and heat preservation capacity of the sunlight greenhouse, enables illumination environment to be more uniform, and is beneficial to annual high-efficiency production of the sunlight greenhouse.

Description

Active lighting and heat storage type sunlight greenhouse

Technical Field

The utility model belongs to the technical field of the facility agriculture, a sunlight greenhouse structure is related to, concretely relates to initiative daylighting heat accumulation type sunlight greenhouse.

Background

In recent years, with the increasing living standard and the demand of materials, people have great changes on the safety awareness and the food structure of food, and the demand of vegetables in the market is increasing day by day. Facility agriculture has become a big mainstay industry to thrive local economy and increase farmer income. The sunlight greenhouse serving as the out-of-season vegetable planting field is developed and improved greatly, is a small environment for vegetable planting, can meet the requirements of vegetable growth on light-temperature environmental conditions only by being built scientifically and reasonably and having good environment regulation and control capability, improves labor efficiency, avoids freezing and cooling disaster accidents and achieves reasonable vegetable growth conditions.

For a long time, scientific and technical personnel have carried out relentless research and exploration on the modernization of the sunlight greenhouse, and the development of various novel sunlight greenhouses and the application of new greenhouse lighting, heat preservation and heat storage technologies make great contribution to the structure optimization and the performance improvement of the sunlight greenhouse. However, the improvement of the sunlight greenhouse, the active light and temperature regulation and the application of the modern design concept are insufficient, the sunlight greenhouse still has the problems of weak regulation and control capability, uneven illumination distribution, unbalanced annual production and the like, the annual high-efficiency production of greenhouse crops is seriously influenced, and the three main aspects are as follows: 1. the contradiction between the design of heat preservation and heat storage of the sunlight greenhouse and the uniformity of light is not easy to solve. The design concept of the sunlight greenhouse mainly aims at improving the lighting and heat insulation performance in winter, a heat insulation wall and a rear roof are required to be constructed, and the elevation design of the rear roof is based on the solar elevation angle in winter and winter. The designs are beneficial to the deep winter lighting of the greenhouse and the heat preservation at night, but the problem of uneven lighting in the sunlight greenhouse is more serious in most seasons due to the shielding of the rear roof and the heat preservation by the lighting in the greenhouse, and the lighting of rear crops is greatly influenced. In cold regions, the azimuth angle of the greenhouse is designed in a western direction, and after spring, the azimuth angle has great influence on the morning photosynthesis of greenhouse crops due to the shading of the rear roof and the heat preservation quilt, so that the annual production capacity of the greenhouse is difficult to improve. 2. The existing sunlight greenhouse structure is not beneficial to active heat storage of the greenhouse. At present, the rear roof of the sunlight greenhouse mostly adopts light heat-insulating materials, the slope of the outer side of the rear roof is large, the heat-insulating quilt can only be rolled to the position of the ridge of the front roof, a large shading area is formed on the rear wall, and when the wall body and heat storage equipment need a large amount of heat storage in the middle and rear, the shading causes the reduction of heat storage capacity. And the heat storage capacity of the greenhouse is further weakened by shielding the wall and the ground of the greenhouse by the growth of crops. 3. The comprehensive application capability of the novel solar greenhouse structure innovation and regulation technology is not strong. The greenhouse structure, the environment regulation and control technology and the equipment high-efficiency matching application technology of the sunlight greenhouse are deficient, the research on the annual production environment comprehensive regulation and control of the sunlight greenhouse is lacked, the application of each new technology is disconnected, and the due effect cannot be fully exerted. The existing sunlight greenhouse environment efficient regulation mechanism and intelligent facilities are not enough, and sunlight greenhouse light and temperature coupling regulation and efficient production cannot be completely and effectively carried out, so that further innovation and development of sunlight greenhouse technology are limited.

In conclusion, the sunlight greenhouse has the problems of weak regulation and control capability, uneven distribution of ambient temperature and light, unbalanced annual production and the like, and is mainly caused by structural defects and insufficient research on effective regulation and control technology of the existing sunlight greenhouse. In order to solve the technical bottleneck of blocking the sunlight greenhouse from collecting light and storing heat, the solar greenhouse is constructed in an innovative manner, an active light collecting technology is applied, the annual light collecting uniformity of the sunlight greenhouse is improved, and a high-performance solar active heat collecting system is adopted to improve the active heat storing and releasing capacity of the sunlight greenhouse, so that the solar greenhouse has very important significance for the development of the sunlight greenhouse to the modernization and intellectualization direction in future.

The information disclosed in this background section of the invention is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an initiative daylighting heat accumulation type sunlight greenhouse, this initiative daylighting heat accumulation type sunlight greenhouse adopt the mode of greenhouse structure innovation, with sunlight greenhouse initiative daylighting and heat accumulation technique and organic combination, through the initiative sunlight of gathering, improved the solar energy utilization ability to and the initiative heat release capacity that holds, improved sunlight greenhouse environment regulation and control ability and illumination homogeneity, make sunlight greenhouse more be favorable to realizing the high-efficient production of anniversary.

In order to realize the aim, the utility model provides an active lighting and heat storage type sunlight greenhouse, which comprises a combined type framework, a gable body arranged on the combined type framework and positioned on the east and west sides, a rear wall body positioned on the north side, a lighting roof positioned on the south side, a rear roof with an adjustable elevation angle and a solar active heat storage and release system,

a reflecting surface is arranged on one side, facing the lighting roof, of the elevation-adjustable rear roof, and one end of the elevation-adjustable rear roof is hinged to the rear wall;

the solar active heat accumulation and release system comprises a solar heat collector, a heat accumulation water tank, a water feeding pipe, a water return pipe and a submersible pump, wherein the solar heat collector is positioned on the inner side of the rear wall, the heat collection surface faces the lighting roof, one end of the water feeding pipe and one end of the water return pipe are communicated with the solar heat collector, the other end of the water feeding pipe and one end of the water return pipe are communicated with the heat accumulation water tank, the submersible pump is arranged in the heat accumulation water tank, and the output end of the submersible pump is communicated.

Preferably, one end of the elevation-adjustable rear roof is hinged to the combined type framework on the inner side of the rear wall body through an elastic hinge.

Preferably, still include gear motor, arc rack and gear, the one end of arc rack connect in roofing behind the adjustable elevation angle, gear motor sets up output connect in on the roofing behind the adjustable elevation angle in the gear, gear engagement with the arc rack, gear motor rotates, can drive roofing rotation behind the adjustable elevation angle.

Preferably, still include solar tracking system, solar tracking system includes light sensor and controller, light sensor sets up in combination formula skeleton, communication connection in the controller, controller communication connection in gear motor.

Preferably, the outer side of the daylighting roof is covered with a transparent daylighting layer. Preferably, the solar energy collector further comprises an electric heater, a top film rolling device and a bottom film rolling device, wherein the electric heater is arranged in the heat storage water tank, the top film rolling device is arranged at the top of the lighting roof and used for rolling up or putting down the transparent daylighting layer covered at the top of the lighting roof, and the bottom film rolling device is used for rolling up or putting down the transparent daylighting layer covered at the bottom of the lighting roof.

Preferably, greenhouse integrated control system includes temperature sensor, light sensor and integrated control ware, temperature sensor reaches light sensor communication connection in integrated control ware, integrated control ware communication connection in electric heater solar energy initiative hold the exothermal system the top rolling film ware reaches end rolling film ware, integrated control ware is based on the temperature control that temperature sensor detected electric heater opens and closes, based on temperature and light sensor's testing result, the operation of rolling up of roll curtain machine is put and solar energy initiative is held the exothermal system, based on temperature sensor's testing result, control top rolling film ware reaches end rolling film ware open and closed.

Preferably, still include heat preservation overburden and roll up curtain machine, the heat preservation overburden is used for covering the daylighting roofing, roll up curtain machine and be used for the book to put the heat preservation overburden, roll up curtain machine's spool connect in the heat preservation overburden, communication connection in integrated control ware can be based on temperature sensor with illumination sensor's testing result will the heat preservation overburden is accomodate the daylighting roofing top.

Preferably, the solar energy collecting and lighting roof further comprises a wall heat-insulating material layer, wherein the wall heat-insulating material layer covers the two side gable bodies, the rear wall body, one side, back to the lighting roof, of the elevation-adjustable rear roof and the hinged position of the elevation-adjustable rear roof and the rear wall body.

Preferably, the heat storage water tank is of a reinforced concrete or galvanized steel plate structure, is wrapped by a heat insulation material and is buried below 1m of the ground.

The beneficial effects of the utility model reside in that:

1) the utility model discloses the setting of roofing behind adjustable angle of elevation increases the roofing daylighting area before the greenhouse through the roofing angle of elevation behind the increase to the daylighting volume and the illumination degree of consistency in greenhouse have been increased, and the heat accumulation efficiency of solar energy initiative heat storage system, and shine on the inboard plane of reflection of roofing behind the adjustable angle of elevation when sunshine sees through the daylighting roofing, can carry out the secondary reflection, and the daylighting homogeneity and the sunlight utilization ratio in improvement greenhouse are shone in initiative daylighting heat storage type sunlight greenhouse to the sunshine of reflection.

2) The utility model discloses a solar energy initiative is held and is put setting of thermal system, setting through the circulation immersible pump, make the water in heat storage water tank and the solar collector be in the circulation state, when having sunshine to exist daytime, sunshine shines on solar collector, heat the water in the solar collector, through rivers circulation, heat the water in the heat storage water tank, save heat energy, when temperature is lower night, the immersible pump continues to drive the hydrologic cycle in heat storage water tank and the solar collector, the heat energy of release water storage, heat up initiative daylighting heat accumulation type sunlight greenhouse, do benefit to vegetation.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present invention.

Fig. 1 shows a schematic structural view of an active light-collecting heat-storage type solar greenhouse according to an embodiment of the present invention.

Fig. 2 shows a schematic block diagram of the active day-to-day mining of an adjustable elevation rear roof according to an embodiment of the present invention.

Fig. 3 shows a schematic structural diagram of the roof covering insulation at night after the adjustable elevation according to an embodiment of the present invention.

Description of reference numerals:

1: an assembled framework; 2: a wall thermal insulation material layer; 3: a transparent daylighting layer; 4: a roller shutter machine; 5: a film top rolling device; 6: a bottom film winder; 7: a rear roof with an adjustable elevation angle; 8: a reduction motor; 9: a rack; 10: a solar heat collector; 11: a water feeding pipe; 12: a water return pipe; 13: a heat storage water tank; 14: a submersible pump; 15: an electric heater; 16: a sun-tracking system; 17: a greenhouse integrated control system; 18: a reflective surface; 19: an elastic hinge; 20: the bottom is sealed with a heat-insulating material; 21: sealing rubber strips; 22: sealing the heat-insulating material; 23: a rear roof branch pipe; 24: and (4) a heat-insulating covering layer.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The utility model provides an initiative daylighting heat accumulation type sunlight greenhouse, this initiative daylighting heat accumulation type sunlight greenhouse includes:

the combined type framework is arranged on a gable body positioned on the east and west sides of the combined type framework, a rear wall positioned on the north side and a lighting roof positioned on the south side;

the elevation angle adjustable rear roof is provided with a reflecting surface facing one side of the lighting roof, and one end of the elevation angle adjustable rear roof is hinged to the rear wall;

solar energy initiative heat release system that holds, solar energy initiative heat release system that holds includes solar collector, heat storage water tank, upper hose, wet return and immersible pump, solar collector is located combination formula skeleton, and the thermal-arrest face orientation the daylighting roofing, the one end of upper hose and wet return communicate in solar collector, the other end communicate in the heat storage water tank, the immersible pump sets up in the heat storage water tank, the output communicate in the upper hose.

Specifically, the utility model provides an initiative daylighting heat accumulation type sunlight greenhouse structure, this greenhouse have overcome traditional sunlight greenhouse can only passive form daylighting and the drawback of heat accumulation, adopt the mode of greenhouse structure innovation, combine sunlight greenhouse initiative daylighting and heat accumulation technique and sunlight greenhouse organically, have ordinary sunlight greenhouse passive form daylighting heat accumulation and heat preservation ability promptly, have the novel sunlight greenhouse of initiative daylighting heat accumulation and heat preservation ability again. The utility model discloses mainly realize through following mode: the lighting area of the greenhouse roof is increased through the rear roof with the adjustable elevation angle for active lighting, and the reflecting surface is arranged on the inner side of the rear roof with the adjustable elevation angle, so that the elevation angle of the rear roof can be adjusted along with the solar track for secondary reflection active lighting. The solar active heat storage and release system is installed in the greenhouse to actively store heat of the greenhouse solar, the photo-thermal conversion efficiency is improved through the solar active heat storage and release system, and the heat storage water tank is installed in the greenhouse and is mainly used for storing heat collected by the solar heat collector.

Specifically, the mountain wall body and the rear wall body are wall body heat insulation materials, and the wall body heat insulation materials comprise at least one of dry rammed earth walls, composite brick walls, rock wool composite boards and polystyrene color steel plates.

Specifically, the reflecting surface is made of aluminum foil, reflecting film and reflecting glass.

Specifically, the heat collection surface of the solar active heat storage and release system is a plate-type heat collector or a heat collection water pipe, and a heat storage water tank, a water supply pipe, a water return pipe and a submersible pump are arranged to form a circulating system. The sun irradiates the black heat collection surface to generate heat in the daytime, so that the temperature of running water in the heat collection surface is increased, the heat is collected back to the heat storage water tank through the water flow, and the heat is collected in a circulating and reciprocating mode. And when the temperature in the greenhouse is reduced and the temperature needs to be supplemented at night, the heat storage and release system is started, hot water is extracted from the heat storage water tank, and the heat is released through the recycling of the integrated surface, so that the temperature of the sunlight greenhouse at night is increased.

As a preferred scheme, one end of the elevation-adjustable rear roof is hinged to the middle of the rear wall body through an elastic hinge.

In the active lighting and heat accumulating type sunlight greenhouse, the mountain walls and the north rear wall on the east and west sides are made of wall heat insulating materials, and the south side is a transparent lighting surface. The assembled type framework is a supporting structure of the greenhouse, the roof is arranged on the greenhouse framework after the elevation angle is adjustable, and the lower part of the roof is connected with the greenhouse framework through an elastic hinge.

As a preferred scheme, the adjustable elevation angle roof structure further comprises a speed reducing motor, an arc-shaped rack and a gear, wherein one end of the arc-shaped rack is connected to the adjustable elevation angle rear roof, the speed reducing motor is arranged on the adjustable elevation angle rear roof, the output end of the speed reducing motor is connected to the gear, the gear is meshed with the arc-shaped rack, and the speed reducing motor rotates to drive the adjustable elevation angle rear roof to rotate.

Specifically, the elevation-adjustable rear roof is a movable rear roof, is made of at least one of polystyrene, rock wool color steel composite plates and extruded sheets, can be driven by a gear motor and a gear rack system, adjusts the elevation angle of the rear roof, increases the lighting area of the greenhouse and accordingly realizes active lighting.

Preferably, the solar tracking system comprises a light sensor and a controller, wherein the light sensor is arranged in the combined type framework and is in communication connection with the controller, and the controller is in communication connection with the speed reduction motor.

The inclination angle of the elevation angle adjustable rear roof can be manually observed and adjusted, and can also be in communication connection with a sun tracking device.

As a preferred scheme, the outside of the daylighting roof is covered with a transparent daylighting layer.

Specifically, the transparent daylighting layer is at least one of a polyethylene film, a polyvinyl chloride film, an ethylene-vinyl acetate film and a PC transparent plate.

The solar energy collector comprises a solar energy.

Specifically, the heater can be an electric heater mainly used for heating water temperature temporarily by the electric heater when a solar active heat storage and release system cannot store heat under the condition of cloudy weather, and then the water temperature is supplemented into the greenhouse by heat dissipation through a heat collection surface, so that the disaster resistance of the sunlight greenhouse is improved.

As preferred scheme, still include greenhouse integrated control system, greenhouse integrated control system includes temperature sensor, light sensor and integrated control ware, temperature sensor reaches light sensor communication connection in integrated control ware, integrated control ware communication connection in solar energy initiative heat storage system electric heater roll up the curtain machine top roll membrane ware reaches end roll membrane ware, integrated control ware is based on temperature and light control that light sensor detected roll up the operation of putting and solar energy initiative heat storage system of curtain machine, based on opening and closing of temperature control electric heater that temperature sensor detected, based on temperature sensor's testing result, control top roll membrane ware reaches end roll membrane ware open and close.

The greenhouse integrated control system is used for controlling the opening of the rolling machine, then the top rolling film device and the bottom rolling film device are controlled to be opened when the temperature of the temperature sensor reaches a ventilation threshold value, the transparent daylighting layer is packed up for ventilating the sunlight greenhouse, the top rolling film device and the bottom rolling film device are controlled to be closed when the temperature of the temperature sensor exceeds the rolling threshold value, the rolling machine is controlled to be put down when the rolling threshold value set by the temperature sensor and the light sensor is lower than the set threshold value, the rolling machine and the rolling film device are controlled to be interlocked, the rolling machine can be started to ventilate when the rolling machine is rolled up, and the rolling machine can be started to put down the heat-preservation covering material when the rolling machine is closed. And setting a temperature threshold value for the temperature sensor, starting the heater when the temperature is lower than the temperature threshold value, heating water in the heat storage water tank, and circulating the heated water to the solar heat collector through the submersible pump to heat the solar greenhouse. The system can comprehensively control the roller shutter, the ventilation and the solar heat storage and release system of the greenhouse, thereby improving the automatic management level of the sunlight greenhouse and obtaining better management effect.

As a preferable scheme, the solar energy-saving building roof further comprises a wall heat-insulating material layer, wherein the wall heat-insulating material layer covers the rear wall, the two side gable bodies, one side of the elevation-adjustable rear roof, which is back to the lighting roof, and the hinged position of the elevation-adjustable rear roof and the rear wall.

Preferably, the heat storage water tank is of a reinforced concrete or galvanized steel plate structure, is externally coated with a heat insulation material, and is buried below 1m of the ground.

Specifically, the heat storage water tank is mainly used for storing hot water generated by the solar active heat storage and release system, the structure is reinforced concrete or galvanized steel plates, the inner layer is subjected to waterproof treatment, and the outer layer is provided with a heat insulation material, so that the heat loss is reduced. And a submersible pump, a water feeding pipe and a water return pipe of a solar active heat storage and release system are arranged in the heat storage water tank.

Preferably, the roof curtain structure further comprises a heat-insulating covering layer, the heat-insulating covering layer is stored at the top of the daylighting roof or covers the daylighting roof through a curtain rolling machine, one end of the heat-insulating covering layer is connected to the daylighting roof, and the other end of the heat-insulating covering layer is connected to a reel of the curtain rolling machine.

Examples

Fig. 1 shows the schematic structure chart of the active lighting heat accumulation type sunlight greenhouse according to an embodiment of the present invention, fig. 2 shows the schematic structure chart of the active lighting of the roof after the adjustable elevation angle according to an embodiment of the present invention, fig. 3 shows the schematic structure chart of the roof after the adjustable elevation angle according to an embodiment of the present invention. In the drawings, straight line arrows represent the sunlight direction and the sunlight reflection direction, and arc arrows represent the movement direction of the rear roof 7 with the adjustable elevation angle.

As shown in fig. 1-3, the main structure of the active daylighting and heat storage type solar greenhouse comprises a solar greenhouse framework material 1, a wall thermal insulation material 2, a transparent daylighting layer 3, a solar heat collector 10, a heat storage water tank 13, a solar tracking system 16, a comprehensive control system 17, an electric heater 15 and a thermal insulation covering material 24. The wall heat insulation material comprises a gable wall on two sides and a rear wall, the rear roof is an elevation-adjustable rear roof 7, the lighting performance and the illumination uniformity of the greenhouse are improved, and the heat collection efficiency of a solar active heat storage and release system arranged in the greenhouse can be improved. By regulating and controlling the light and temperature coupling of the sunlight greenhouse, the annual environment regulating and controlling capability of the sunlight greenhouse is improved, and the method is very favorable for annual high-efficiency production of the sunlight greenhouse.

The adjustable elevation angle rear roof 7 is manually started or the sun tracker 16 is started to control the number of rotation turns of the speed reduction motor 8, drive the gear to drive the rack 9 to move, and push the angle of the adjustable elevation angle rear roof 7, so that the front roof lighting area is increased, sunlight can be continuously reflected in the greenhouse through the reflecting surface 18, and the lighting capacity and the illumination uniformity of the greenhouse are increased. In high-temperature seasons, the high lighting capacity can be obtained by adjusting the elevation angle of the rear roof 7 with the adjustable elevation angle, and the size of a ventilation opening can be adjusted by retracting and releasing the transparent lighting layer through the top film rolling device 5 and the bottom film rolling device 6, so that the ventilation and cooling of the greenhouse can be realized, and the temperature in the greenhouse can be adjusted.

The solar energy active heat storage and release system is installed in the sunlight greenhouse and comprises a solar heat collector 10, a heat storage water tank 13, a water feeding pipe 11, a water return pipe 12 and a submersible pump 14, water in the heat storage water tank 13 is pumped into the water feeding pipe 11 by the submersible pump 14 in the daytime, flows through the solar heat collector 10, is heated by sunlight to store solar heat, flows back to the heat storage water tank 13 through the water return pipe 12 to be stored, and the water heated in the daytime is pumped into the solar heat collector 10 from the heat storage water tank 13 to release heat in a circulating mode at night.

The electric heater 15 is mainly used for continuously collecting the solar energy in winter in cloudy days, when the solar energy active heat storage and release system cannot obtain the solar energy in the continuously cloudy days, the electric heater 15 is started to heat the water temperature of the heat storage water tank, and then the water passes through the submersible pump 14 and the water feeding pipe 11 and flows through the solar heat collector 10 to release the heat so as to increase the environmental temperature of the greenhouse.

The greenhouse ventilation, the roller shutter, the solar heat storage and release system and the electric heater 15 are comprehensively controlled by a greenhouse comprehensive control system 17.

The solar energy heat storage and release system adopts different control modes in the daytime heat storage stage and the nighttime heat release stage. In the daytime heat storage stage, after the sunlight greenhouse is started for heat preservation, the submersible pump 14 of the active heat storage and release system can be automatically started and closed according to the change of light intensity to store heat, when the indoor illumination intensity is higher than 20000Lx, the submersible pump 14 is started, the solar heat collector 10 is used for circularly storing heat, and when the indoor illumination intensity is lower than 20000Lx, the submersible pump 14 is closed to stop storing heat; in the night heat release stage, the opening and closing of the active heat storage device are controlled by the water temperature and the air temperature at the same time. When the temperature of the air in the greenhouse is lower than the lower temperature control limit value and the water temperature of the heat storage water tank 13 is higher than the lower temperature control limit value, the active heat storage device is started, and when the temperature of the air in the greenhouse is higher than the upper temperature control limit value and the water temperature of the heat storage water tank 13 is lower than the upper temperature control limit value, the solar heat storage and release system is closed.

Next, the sunlight greenhouse illumination control and temperature environment control method of the present invention will be described in further detail.

The illumination regulation adopts a roof active lighting system with an adjustable elevation angle, and mainly comprises active lighting with an adjustable elevation angle and secondary reflection lighting. The elevation-adjustable rear roof 7 is arranged on the greenhouse framework, and the lower part of the elevation-adjustable rear roof is connected with the greenhouse framework through an elastic hinge 19. The elastic hinge 19 is provided with a bottom sealing and heat insulating material 20 for sealing the hinged position, the other end of the elevation-adjustable rear roof 7, which is positioned on the inner side of the lighting roof, is provided with a rear roof branch pipe 23 for supporting the elevation-adjustable rear roof 7, a sealing rubber strip 21 for preserving heat of the rear roof branch pipe 23 and an upper sealing and heat insulating material 22. The elevation angle of the rear roof 7 with the adjustable elevation angle can be adjusted by the driving of a gear motor 8 and a gear rack 9 system, and the lighting area of the greenhouse is increased, so that active lighting is realized. The inner side of the elevation-adjustable rear roof 7 is provided with a reflecting surface 18 which is made of aluminum foil, reflecting film and reflecting glass. The elevation-adjustable rear roof 7 can be connected with a sun tracking system 16, the device is in a single-shaft inclination angle adjusting mode, a starting inclination angle is preset at first, then the elevation angle of the rear roof is adjusted in real time according to the change of the sun track, so that the optimal reflection angle is obtained, sunlight is reflected into the greenhouse, the sunlight is mainly reflected to rear row crops in the greenhouse, and the illumination intensity and the illumination uniformity in the greenhouse are improved.

The temperature regulation and control mode mainly adopts three modes;

① active solar heat storage and release system, wherein the solar heat storage and release system is arranged on the inner side of the rear wall of the greenhouse, the heat collection surface is a plate or tube type heat collector, the water in the heat storage water tank is pumped into the solar heat collection system in the daytime, the sunlight is used for heating the water flowing through the solar heat collection system, the heated water flows back into the heat storage water tank, the heat is heated in the daytime for heat storage, and the water heated in the daytime is pumped into the active solar heat collection system from the heat storage water tank for heat release in the evening, thereby improving the lowest temperature of the solar greenhouse in the evening.

② temporary temperature compensation of electric heater, which is mainly used for continuous cloudy days in winter, when the solar energy active heat storage and release system can not obtain solar energy, the water temperature of the heat storage water tank is lower than the upper limit value of the temperature control system or lower than 20 ℃, and the greenhouse can not be heated at night, the electric heater is started to heat the water temperature of the heat storage water tank, and then the water temperature passes through the solar heat release collector through the submersible pump and the water feeding pipe to increase the environmental temperature of the greenhouse.

③ cooling in summer, wherein the elevation angle of the roof is increased to increase the ventilation area of the front roof vent, and the ventilation opening is adjusted by the top film rolling device and the bottom film rolling device to ventilate and cool the greenhouse.

The utility model discloses initiative daylighting heat accumulation type sunlight greenhouse, it is weak to sunlight greenhouse light temperature environment regulation and control ability, the uneven scheduling problem of illumination spatial and temporal distribution, innovative design sunlight greenhouse initiative daylighting and heat accumulation system, through initiative daylighting and the effective combination of initiative thermal-arrest, at the initiative daylighting heat accumulation on daytime in winter, increase sunlight greenhouse daylighting volume, illumination homogeneity and heat accumulation volume, can effectively keep warm and release the heat night, improve the ambient temperature of sunlight greenhouse night. The method has the advantages that the illumination uniformity and the temperature suitability in the greenhouse are adjusted by active lighting and ventilation cooling measures in summer, the annual high-efficiency production of the sunlight greenhouse is ensured, the environment controllability of the sunlight greenhouse is improved obviously, and the method is very favorable for the annual high-efficiency production of crops.

While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims

1. An active lighting and heat storage type sunlight greenhouse is characterized by comprising a combined framework, gable bodies arranged on the combined framework and positioned at east and west sides, a rear wall body positioned at the north side, a lighting roof positioned at the south side, a rear roof with an adjustable elevation angle and a solar active heat storage and release system,

2. The active lighting and heat storage type solar greenhouse of claim 1, wherein one end of the elevation angle adjustable rear roof is hinged to the middle of the rear wall through an elastic hinge.

3. The active lighting and heat storage type solar greenhouse of claim 1, further comprising a gear motor, an arc-shaped rack and a gear, wherein one end of the arc-shaped rack is connected to the elevation-adjustable rear roof, the gear motor is arranged on the elevation-adjustable rear roof, the output end of the gear motor is connected to the gear, the gear is meshed with the arc-shaped rack, and the gear motor rotates to drive the elevation-adjustable rear roof to rotate.

4. The active lighting and heat storage solar greenhouse of claim 3, further comprising a sun tracking system, wherein the sun tracking system comprises a light sensor and a controller, the light sensor is disposed in the combined skeleton and is communicatively connected to the controller, and the controller is communicatively connected to the speed reduction motor.

5. The active lighting and heat storage type solar greenhouse of claim 1, wherein the outside of the lighting roof is covered with a transparent lighting layer.

6. The active lighting and heat storage type solar greenhouse of claim 5, further comprising an electric heater, a top film rolling device and a bottom film rolling device, wherein the electric heater is arranged in the heat storage water tank, the top film rolling device is arranged on the top of the lighting roof and is used for rolling up or down the transparent lighting layer covering the top of the lighting roof, and the bottom film rolling device is used for rolling up or down the transparent lighting layer covering the bottom of the lighting roof.

7. The active lighting and heat storage type solar greenhouse of claim 6, further comprising a greenhouse integrated control system, the greenhouse integrated control system comprises a temperature sensor, an illumination sensor and an integrated controller, the temperature sensor and the illumination sensor are in communication connection with the integrated controller, the integrated controller is in communication connection with the electric heater, the solar active heat storage and release system, the top film rolling device and the bottom film rolling device, the integrated controller controls the opening and closing of the heater based on the temperature detected by the temperature sensor, controls the rolling and releasing of the rolling shutter machine and the operation of the solar active heat storage and release system based on the detection results of the temperature sensor and the illumination sensor, and controls the opening and closing of the top film rolling device and the bottom film rolling device based on the detection results of the temperature sensor.

8. The active lighting and heat storage type solar greenhouse of claim 7, further comprising a heat-insulating covering layer and a rolling shutter machine, wherein the heat-insulating covering layer is used for covering the lighting roof, the rolling shutter machine is used for rolling and releasing the heat-insulating covering layer, a winding shaft of the rolling shutter machine is connected to one end of the heat-insulating covering layer, the rolling shutter machine is in communication connection with the integrated controller, and the heat-insulating covering layer can be stored at the top of the lighting roof based on the detection results of the temperature sensor and the illumination sensor.

9. The active lighting and heat storage type solar greenhouse of claim 1, further comprising a wall thermal insulation material layer covering the rear wall, the two side gable bodies, the side of the elevation-adjustable rear roof facing away from the lighting roof, and the hinge joint between the elevation-adjustable rear roof and the rear wall.

10. The active lighting and heat storage solar greenhouse of claim 1, wherein the heat storage water tank is of reinforced concrete or galvanized steel plate structure, is coated with heat insulation material, and is buried under 1m below the ground.