CN111587710A - Sunlight greenhouse metal film heat collecting and releasing device - Google Patents
Sunlight greenhouse metal film heat collecting and releasing device Download PDFInfo
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- CN111587710A CN111587710A CN202010489654.0A CN202010489654A CN111587710A CN 111587710 A CN111587710 A CN 111587710A CN 202010489654 A CN202010489654 A CN 202010489654A CN 111587710 A CN111587710 A CN 111587710A
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- 239000002184 metal Substances 0.000 title claims abstract description 71
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- 238000010521 absorption reaction Methods 0.000 claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims description 35
- 230000017525 heat dissipation Effects 0.000 claims description 24
- 238000009413 insulation Methods 0.000 claims description 14
- 239000002689 soil Substances 0.000 claims description 10
- 230000001154 acute effect Effects 0.000 claims description 5
- 239000011449 brick Substances 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 230000001965 increasing effect Effects 0.000 abstract description 17
- 230000009286 beneficial effect Effects 0.000 abstract description 14
- 230000002349 favourable effect Effects 0.000 description 19
- 238000005338 heat storage Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 235000013311 vegetables Nutrition 0.000 description 2
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- 239000000463 material Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/14—Greenhouses
- A01G9/1407—Greenhouses of flexible synthetic material
- A01G9/1415—Greenhouses of flexible synthetic material with double or multiple walls
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/246—Air-conditioning systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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Abstract
The invention discloses a solar greenhouse metal film heat collecting and releasing device, which belongs to the technical field of solar greenhouses and comprises a back slope, a wall body and a shed surface; a wall body is connected below the rear slope, and a shed surface is connected in front of the rear slope; a honeycomb heat absorption layer and a pebble layer are arranged in the wall body; the honeycomb heat absorption layer is positioned in front of the wall body, a honeycomb concave surface and a honeycomb convex surface are arranged on the honeycomb heat absorption layer, and a metal film is arranged in the honeycomb convex surface; the pebble layer is positioned below the honeycomb heat absorption layer and is provided with a gap adjusting device. The invention is scientific and reasonable, is safe and convenient to use, increases the heat energy concentration when the metal film is arranged in the concave honeycomb structure, is beneficial to increasing the heat absorption efficiency of the metal film, reduces the use area of the metal film and saves the cost. The metal film heat collecting and releasing device is combined with the pebble layer, so that the utilization rate of heat energy in the concave surface of the honeycomb is improved, the cost of the water storage tank is reduced, and the land utilization rate is improved. The gap adjusting device adjusts the pebble gap, so that the heat conduction rate of the pebble layer is variable.
Description
Technical Field
The invention relates to the technical field of sunlight greenhouses, in particular to a sunlight greenhouse metal film heat collecting and releasing device.
Background
The sunlight greenhouse adopts simpler and easier facilities, consists of a rear wall body, a supporting framework, a rear slope, a covering material and the like, and is mainly applied to overwintering cultivation of vegetables in northern areas of China in cold periods. The solar greenhouse metal film heat collecting and releasing device is not required to be heated indoors, heat energy is absorbed through the rear wall body to realize heat storage and release, and a certain indoor temperature level is maintained so as to meet the growth requirement of vegetable crops.
In the existing metal film heat collecting and releasing device, a metal film is directly arranged on the inner surface of a rear wall body, the sunlight greenhouse is large in size, heat energy cannot be collected on one surface, the metal film heat storage efficiency is low, the required area is large, and the cost is high. The honeycomb heat absorption layer is arranged, the metal film is arranged in the honeycomb concave surface, and heat energy is gathered in the honeycomb concave surface by utilizing the honeycomb structure of the concave surface, so that the heat absorption efficiency of a single metal film is increased, the use area of the metal film is reduced, and the cost is saved. Secondly, the existing metal film heat collecting and releasing device mainly realizes heat storage and heat release by circulating heat absorption medium water, if the heat release time at night of the sunlight greenhouse is to be maintained, a water storage tank needs to be built, the larger the water storage tank is, the stronger the heat storage capacity is, but the land utilization area is reduced, and the cost is higher. The invention combines a metal film heat collecting and releasing device with a pebble layer; the heat energy stored in the honeycomb concave surface can be absorbed by the metal film and then stored in the circulating water layer, can also be absorbed by the honeycomb convex surface connected with the honeycomb concave surface and stored in the pebble layer, so that the utilization rate of the heat energy in the honeycomb concave surface is improved, the cost for building the reservoir is reduced, and the utilization rate of the land area is improved. Finally, the existing heat collecting and releasing device can adjust the gap between the pebbles without any trouble, and the heat conductivity is constant; if the gap is too large, the heat conduction speed in the pebble layer is easy to be too high, so that the temperature of the greenhouse is lower in the late night; if the clearance is too small, the heat conduction speed in the pebble layer is low, and the heat energy stored in the daytime is wasted. The invention is provided with a gap adjusting device to adjust the gap between the pebbles so as to change the heat conduction rate of the pebble layer, and the heat conduction rate of the pebble layer can be determined according to the temperature of the sunlight greenhouse at night.
Disclosure of Invention
The invention aims to provide a solar greenhouse metal film heat collecting and releasing device to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a solar greenhouse metal film heat collecting and releasing device comprises a back slope, a wall body and a shed surface; the improved greenhouse is characterized in that a wall body is connected below the back slope, a greenhouse surface is connected in front of the back slope, a soil layer is arranged below the greenhouse surface, a heat insulation layer is arranged below the soil layer, and a circulating water layer is arranged below the heat insulation layer.
The wall body is favorable to absorbing heat energy daytime, and the shed face is transparent, can hold sunshine and see through shining on the crops of planting. The soil layer is favorable for planting crops, and the circulating water layer is favorable for storing heat energy absorbed by the wall body in daytime and releasing heat energy at night when the temperature is lower. The heat insulating layer is favorable to the better heat-retaining of circulation water layer, prevents that heat energy from distributing partly in the circulation water layer, and separation heat energy prevents that soil horizon below high temperature from influencing crops to grow simultaneously.
Preferably, the wall body comprises a honeycomb heat absorption layer, an insulating layer and a pebble layer; the honeycomb heat absorption layer is positioned in front of the wall body, the pebble layer is positioned below the honeycomb heat absorption layer, the heat insulation layer is positioned behind the honeycomb heat absorption layer and the pebble layer, and clay bricks are arranged behind the heat insulation layer; the honeycomb heat absorption layer is provided with a honeycomb concave surface and a honeycomb convex surface, the honeycomb concave surface and the honeycomb convex surface are arranged in a staggered mode, and a metal film is arranged in the honeycomb convex surface.
The honeycomb heat-absorbing layer is favorable to absorbing a large amount of heats daytime, the cobble layer is favorable to storing the heat that the wall body absorbed, and the heat preservation is favorable to honeycomb heat-absorbing layer and cobble layer to store heat, and the clay brick is favorable to the bearing of wall body, prevents that the wall body overweight from leading to the sunlight greenhouse to collapse. The concave surface structure of the honeycomb concave surface is beneficial to gathering heat energy into the concave surface structure, and the gathered heat energy is not easy to blow away by wind when the sunlight greenhouse is ventilated. The metal film is not easy to damage, can be used for a long time, is beneficial to absorbing heat energy, and has more obvious temperature increasing effect compared with a transparent film and a black film; the convex surfaces of the honeycomb are beneficial to absorbing heat energy in the concave surfaces of the honeycomb.
Preferably, the honeycomb convex surface is of a hollow structure, a heat absorption fan is arranged around the honeycomb convex surface, a heat absorption channel is arranged inside the honeycomb convex surface, a heat insulation wall is arranged on the outer side of the heat absorption channel, the heat absorption channel is connected with the heat absorption fan, the heat absorption channel converges with the heat transfer channel, and the heat transfer channel is communicated with the pebble layer.
The heat absorption fan is favorable for absorbing heat energy in the honeycomb concave surface into the hollow structure of the honeycomb convex surface, the heat absorption channel is a pipeline for transferring heat to the heat transfer channel, and the heat transfer channel is favorable for transferring the heat energy into the pebble layer.
Preferably, a water flow channel is arranged in the metal film, the water flow channels on the same row are connected with a water distribution pipe, the water distribution pipe is connected with a water collection pipe, a branch water pipe below the water collection pipe is connected with a water pump, a circulating water pipe is connected below the water pump, and the tail end of the circulating water pipe is connected with a circulating water layer.
The water flow channel is favorable for transferring heat energy absorbed by the metal film to medium water, the water distribution pipe is favorable for circulating the medium water to the water collection pipe, and the left water pump is favorable for circulating water in the water collection pipe to the left circulating water pipe and transmitting the water into a circulating water layer; the right water pump is favorable for pumping medium water in the circulating water layer back to the water collecting pipe through the right circulating water pipe and finally flows back to the water flow channel, thereby completing the transmission and storage of heat energy.
Preferably, the pebble layer comprises pebbles, a heat dissipation port and a temperature sensor; the pebble is located inside the pebble layer, the heat dissipation ports are distributed on the outer side of the pebble layer, the fan is arranged behind the heat dissipation ports, the temperature sensor is arranged above the heat dissipation ports, and the temperature sensor is electrically connected with the heat dissipation ports and the fan.
The pebbles are favorable for storing heat, the heat dissipation port is favorable for dissipating the heat, and the heat dissipation efficiency of the heat in the pebble layer can be increased after the fan is started. The temperature sensor is favorable for monitoring the temperature in the sunlight greenhouse, the fan and the heat dissipation opening are opened for heat dissipation when the temperature is too low, and the fan and the heat dissipation opening are closed to stop heat dissipation when the temperature is proper.
Preferably, a plurality of gap adjusting devices are arranged among the pebbles, so that the gaps among the pebbles can be adjusted, and the heat conduction efficiency of the pebbles can be changed.
Preferably, the gap adjusting device comprises a motor, a first transmission rod and a spiral piece; the motor is connected with a driving shaft, the driving shaft is connected with a first reduction gear, a second reduction gear is meshed above the first reduction gear, and the rotating speed of the motor is reduced through the first reduction gear and the second reduction gear. The first transmission rod is connected with the reduction gear II, and a plurality of spiral pieces are arranged on the first transmission rod. The motor drives the first transmission rod to rotate, so that the spiral piece is driven to rotate. When the first transmission rod on the left side rotates clockwise, the spiral piece rotates to drive the pebbles to gather towards the left side, and finally, the gap between the pebbles is reduced, and the heat conductivity of the pebbles is reduced; when the first transmission rod on the left side rotates anticlockwise, the spiral piece rotates to drive the pebbles to disperse towards the right side, and finally, the gap between the pebbles is enlarged, and the heat conductivity of the pebbles is increased. The effect of the rotation of the first driving lever on the right side is opposite to that on the left side.
Preferably, a plurality of take-up levers are arranged on the spiral piece. The ram increases the friction between the spiral piece and the pebbles, and is favorable for driving the pebbles to disperse or gather.
Preferably, the clearance adjusting device comprises a hydraulic push rod, a second transmission rod and a branch; the hydraulic push rod is electrically connected with the power supply, one side of the hydraulic push rod is connected with a second transmission rod, and the hydraulic push rod drives the second transmission rod to move back and forth. The second transmission rod is provided with a plurality of branches which drive the pebbles to move.
Preferably, the extending direction of the second transmission rod and the branch form an acute angle. When the second transmission rods move oppositely, the acute angle is favorable for gathering the pebbles to reduce the gaps of the pebbles; when the second transmission rod moves backwards, the obtuse angle is beneficial to scattering the pebbles to increase the gaps of the pebbles, compared with the prior art, the invention has the beneficial effects that:
1. the solar greenhouse is provided with the honeycomb heat absorption layer, the metal film is arranged in the honeycomb concave surface, the heat energy is gathered in the honeycomb concave surface by utilizing the honeycomb structure of the concave surface, and the gathered heat energy is not easily blown away by wind when the solar greenhouse is ventilated, so that the heat absorption efficiency of a single metal film is increased, the use area of the metal film is reduced, and the cost is saved. And secondly, the metal film is not easy to damage, can be used for a long time, and has more obvious temperature increasing effect compared with a transparent film and a black film.
2. The invention combines the metal film medium water circulation heat conduction and heat storage with the pebble layer heat conduction; the heat energy stored in the honeycomb concave surface can be absorbed by the metal film and then stored in the circulating water layer, and can also be absorbed by the honeycomb convex surface connected with the honeycomb concave surface and stored in the pebble layer. The honeycomb convex surface and the honeycomb concave surface are arranged at intervals, the area utilization rate can be maximized due to the shape of the regular hexagon, the honeycomb concave surface can be absorbed by the honeycomb convex surface and cannot absorb complete heat energy, the collected heat energy is fully utilized, and the utilization rate of the heat energy in the honeycomb concave surface is improved. The invention uses the pebble bed to heat to assist the metal film to heat, and reduces the size of the reservoir, thereby reducing the cost for building the reservoir and improving the land area utilization rate.
3. The invention is provided with the gap adjusting device to adjust the gap between the pebbles, the gap between the pebbles is enlarged, which is beneficial to the release of heat, the gap between the pebbles is reduced, which is beneficial to the storage of heat, thereby changing the heat conduction rate of the pebble layer, and determining the heat conduction rate of the pebble layer according to the temperature of the sunlight greenhouse at night and whether the metal film radiates heat. When the metal film still radiates heat and the temperature in the greenhouse is proper, the gaps among the pebbles are reduced, the heat conduction efficiency of the pebbles is reduced, and the fan and the heat radiation port are closed when necessary, so that the heat energy in the pebble layer is prevented from being radiated too fast; when the heat energy emitted by the metal film is not enough to maintain the proper temperature of the greenhouse, the gaps among the pebbles are increased, and the heat conduction efficiency of the pebbles is increased, so that the proper temperature of the sunlight greenhouse is maintained.
Drawings
FIG. 1 is a schematic perspective view of a solar greenhouse metal film heat collecting and releasing device according to the present invention;
FIG. 2 is a schematic front side perspective structure view of a honeycomb heat absorption layer, a pebble layer and an insulating layer of the solar greenhouse metal film heat collection and release device of the present invention;
FIG. 3 is a schematic diagram showing a cross-sectional structure of a convex honeycomb surface of a solar greenhouse metal film heat collecting and releasing device;
FIG. 4 is a schematic view of a three-dimensional structure of the honeycomb heat absorption layer, the pebble layer and the heat insulation layer of the solar greenhouse metal film heat collection and release device in back pipeline connection;
FIG. 5 is a schematic view of a metal film channel connection structure of a solar greenhouse metal film heat collecting and releasing device of the present invention;
FIG. 6 is a schematic view of the connection structure of the water collecting pipe, the water pump and the circulating water pipe of the solar greenhouse metal film heat collecting and releasing device of the present invention;
FIG. 7 is a schematic structural diagram of a gap adjustment device of a solar greenhouse metal film heat collection and release device according to a first embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a gap adjustment device of a solar greenhouse metal film heat collecting and releasing device according to a second embodiment of the present invention.
Reference numbers in the figures: 1. back slope; 2. a wall body; 3. shed surface; 4. a soil layer; 5. a thermal insulation layer; 6. circulating the water layer; 7. a honeycomb heat absorbing layer; 8. a honeycomb concave surface; 9. a metal film; 10. a honeycomb convex surface; 10-1, a heat absorption fan; 10-2, a heat absorption channel; 10-3, a heat preservation wall; 10-4, heat transfer channels; 11. a heat-insulating layer; 12. a pebble layer; 13. a heat dissipation port; 14. a temperature sensor; 15. a motor; 16. a drive shaft; 17. a first reduction gear; 18. a second reduction gear; 19. a first drive lever; 20. a spiral sheet; 21. a power source; 22. a hydraulic push rod; 23. a second transmission rod; 24. branching; 25. a water flow passage; 26. a water diversion pipe; 27. a water collection pipe; 28. a water pump; 29. a circulating water pipe; 30. a ram.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: as shown in fig. 1-7, a solar greenhouse metal film heat collecting and releasing device is characterized in that: comprises a back slope 1, a wall body 2 and a shed surface 3; a wall body 2 is connected below the back slope 1, and the wall body 2 is used for absorbing heat energy in the daytime; a shed surface 3 is connected in front of the back slope 1, the shed surface 3 is transparent and can accommodate sunlight to irradiate on planted crops; a soil layer 4 is arranged below the shed surface 3 and is used for planting crops; soil horizon 4 below is equipped with insulating layer 5 for the better heat-retaining of circulation water layer 6 prevents that heat energy from giving out partly in the circulation water layer 6, can the separation heat energy simultaneously, thereby prevents that soil horizon 4 below high temperature from influencing crops and growing. A circulating water layer 6 is arranged below the heat insulation layer 5.
The wall body 2 comprises a honeycomb heat absorption layer 7, an insulating layer 11 and a pebble layer 12; the honeycomb heat absorption layer 7 is positioned in front of the wall body 2 and is used for absorbing a large amount of heat in the daytime; the pebble layer 12 is positioned below the honeycomb heat absorption layer 7 and is used for storing heat absorbed by the wall body 2; the heat insulation layer 11 is positioned behind the honeycomb heat absorption layer 7 and the pebble layer 12 and used for storing heat of the honeycomb heat absorption layer 7 and the pebble layer 12; clay bricks are arranged behind the heat-insulating layer 11 and are used for bearing the weight of the wall body 2 and preventing the sunlight greenhouse from collapsing due to the overweight of the wall body 2; the honeycomb heat absorption layer 7 is provided with a honeycomb concave surface 8 and a honeycomb convex surface 10, the concave surface structure of the honeycomb concave surface 8 is used for gathering heat energy into the concave surface structure, and the gathered heat energy is not easily blown away by wind when the sunlight greenhouse is ventilated. The convex honeycomb surfaces 10 facilitate the absorption of thermal energy within the concave honeycomb surfaces 8. The honeycomb concave surface 8 and the honeycomb convex surface 10 are arranged in a staggered mode, the metal film 9 is arranged in the honeycomb convex surface 10, the metal film 9 is not easy to damage, long-term use is facilitated, heat energy absorption is facilitated, and the temperature increasing effect is more remarkable compared with that of a transparent film and a black film.
The honeycomb convex surface 10 is of a hollow structure, and a heat absorption fan 10-1 is arranged around the honeycomb convex surface 10 and used for absorbing heat energy in the honeycomb concave surface 8 into the hollow structure of the honeycomb convex surface 10. The honeycomb convex surface 10 is internally provided with a heat absorption channel 10-2, the outer side of the heat absorption channel 10-2 is provided with a heat preservation wall 10-3, the heat absorption channel 10-2 is a pipeline for transferring heat to a heat transfer channel 10-4, the heat absorption channel 10-2 is connected with a heat absorption fan 10-1, the heat absorption channel 10-2 is converged with the heat transfer channel 10-4, and the heat transfer channel 10-4 is communicated with a pebble layer 12 and used for transferring heat energy into the pebble layer 12.
A water flow channel 25 is arranged in the metal film 9 and used for absorbing heat energy and transferring the heat energy to medium water by the metal film 9; the water flow channels 25 in the same row are connected with water diversion pipes 26, a plurality of water diversion pipes 26 are connected with a water collection pipe 27, a branch water pipe below the water collection pipe 27 is connected with a water pump 28, a circulating water pipe 29 is connected below the water pump 28, and the tail end of the circulating water pipe 29 is connected with a circulating water layer 6. The left water pump 28 facilitates the circulation of the water in the water collection pipe 27 into the left circulating water pipe 29 and into the circulating water layer 6; the right water pump 28 is beneficial to pumping the medium water in the circulating water layer 6 back to the water collecting pipe 27 through the right circulating water pipe 29 and finally flows back to the water flow passage 25 to complete the transfer and storage of the heat energy.
The pebble layer 12 comprises pebbles, a heat dissipation port 13 and a temperature sensor 14; the pebbles are positioned inside the pebble layer 12 and used for storing heat; the heat dissipation ports 13 are distributed on the outer side of the pebble layer 12 and used for dissipating heat; a fan is arranged behind the heat dissipation port 13, so that the heat dissipation efficiency of the heat energy in the pebble layer 12 can be improved; a temperature sensor 14 is arranged above the heat dissipation opening 13, and the temperature sensor 14 is electrically connected with the heat dissipation opening 13 and the fan. The temperature sensor 14 is beneficial to monitoring the temperature in the sunlight greenhouse, the fan and the heat dissipation port 13 are opened to dissipate heat when the temperature is too low, and the fan and the heat dissipation port 13 are closed to stop heat dissipation when the temperature is proper.
A plurality of gap adjusting devices are arranged among the pebbles and used for adjusting the gaps among the pebbles and changing the heat conduction efficiency of the pebbles. When the metal film still radiates heat and the temperature in the greenhouse is proper, the gaps among the pebbles are reduced, the heat conduction efficiency of the pebbles is reduced, and the fan and the heat radiation port 13 are closed when necessary, so that the heat energy in the pebble layer 12 is prevented from being radiated too fast; when the heat energy emitted by the metal film is not enough to maintain the proper temperature of the greenhouse, the gaps among the pebbles are increased, and the heat conduction efficiency of the pebbles is increased, so that the proper temperature of the sunlight greenhouse is maintained.
The gap adjusting device comprises a motor 15, a first transmission rod 19 and a spiral piece 20; the motor 15 is connected with a driving shaft 16, the motor 15 provides energy for the movement of the first transmission rod 19, and the driving shaft 16 is used for connecting the motor 15 and the first transmission rod 19; the driving shaft 16 is connected with a first reduction gear 17, and a second reduction gear 18 is meshed above the first reduction gear 17; in order to reduce the frequency of the movement of the motor 15, a first reduction gear 17 and a second reduction gear 18 are arranged, and the rotating speed ratio is 6: 1; the first transmission rod 19 is connected with the second reduction gear 18, and a plurality of spiral sheets 20 are arranged on the first transmission rod 19. The motor 15 rotates the first driving rod 19, thereby rotating the spiral 20. When the first driving rod 19 on the left side rotates clockwise, the spiral piece 20 rotates to drive the pebbles to gather towards the left side, and finally, the gap between the pebbles is reduced, and the heat conductivity of the pebbles is reduced; when the first driving rod 19 on the left rotates anticlockwise, the spiral piece 20 rotates to drive the pebbles to disperse towards the right side, and finally, the gap between the pebbles is enlarged, and the heat conductivity of the pebbles is increased. The effect of the rotation of the first transfer lever 19 on the right is opposite to that on the left.
The spiral piece 20 is provided with a plurality of ram rods 30. The ram 30 increases the friction between the spiral piece 20 and the pebbles, which is beneficial to driving the pebbles to disperse or gather.
Example two: as shown in fig. 8, the main difference from the first technical solution is that the gap adjusting device in the pebble bed 12 is implemented differently, and comprises a hydraulic push rod 22, a second transmission rod 23 and a branch 24; the hydraulic push rod 22 is electrically connected with the power supply 21, and the power supply 21 is used for providing electric energy for the hydraulic push rod 22; the right side of the hydraulic push rod 22 is connected with a second transmission rod 23, and the second transmission rod 23 is driven by the hydraulic push rod 22 to do reciprocating motion. The second transmission rod 23 is provided with a plurality of branches 24 which drive the pebbles to move when the second transmission rod 23 moves back and forth.
The second transmission rod 23 extends at an acute angle to the branch 24. . When the second transmission rods 23 move towards each other, the acute angle is beneficial to gathering the pebbles to reduce the gaps of the pebbles, and finally, the heat conduction efficiency of the pebbles is reduced; when the second transmission rod 23 moves back to back, the obtuse angle is beneficial to disperse the pebbles to increase the gaps of the pebbles, and finally, the heat conduction efficiency of the pebbles is increased.
The working principle is as follows: when in use, the honeycomb heat absorption layer 7 on the wall body 2 absorbs heat; the honeycomb concave surfaces 8 and the honeycomb convex surfaces 10 are arranged in a staggered mode, the concave surface structures of the honeycomb concave surfaces 8 are used for gathering heat energy into the concave surface structures, the metal films 9 absorb the heat energy gathered in the honeycomb concave surfaces 8, and the honeycomb convex surfaces 10 are beneficial to absorbing the heat energy left in the honeycomb concave surfaces 8. After the metal film 9 absorbs heat energy, the water flow channel 25 inside the metal film transfers the heat energy to the medium water, and the medium water flows into the water diversion pipe 26 and the water collection pipe 27 in sequence. Then the left water pump 28 is operated to circulate the medium water in the water collecting pipe 27 to the left circulating water pipe 29 and transmit the medium water into the circulating water layer 6; the right water pump 28 is operated to pump the medium water in the circulating water layer 6 back to the water collecting pipe 27 through the right circulating water pipe 29 and finally flows back to the water flow passage 25 to complete the transfer and storage of heat energy. When the metal film 9 absorbs heat energy, the heat absorption fan 10-1 absorbs the residual heat energy in the honeycomb concave surface 8 into the hollow structure of the honeycomb convex surface 10, and stores the heat energy into the pebble layer 12 through the heat absorption channel 10-2 and the heat transfer channel 10-4 in sequence. At night, when the temperature in the sunlight is too low, the circulation between the metal film 9 and the circulating water layer 6 is opened, the heat energy in the medium water is conducted to the metal film 9, and the temperature in the sunlight greenhouse is increased. At the same time, the temperature sensor 14 monitors the temperature in the sunlight greenhouse. When the temperature in the sunlight greenhouse is too low, automatically opening a fan and a heat dissipation port 13 in the pebble layer 12 to dissipate heat into the greenhouse so as to improve the night temperature of the sunlight greenhouse; when the temperature in the sunlight greenhouse reaches the appropriate temperature, the fan and the heat dissipation port 13 are automatically closed, and the pebble layer 12 stops dissipating heat to the interior of the sunlight greenhouse. In the process of radiating the temperature of the pebble layer 12, a gap adjusting device is arranged among the pebbles in the pebble layer 12, the gap among the pebbles can be adjusted, and the heat conduction efficiency of the pebbles is changed. When the metal film still radiates heat and the temperature in the greenhouse is proper, the gaps among the pebbles are reduced, the heat conduction efficiency of the pebbles is reduced, and the fan and the heat radiation port 13 are closed when necessary, so that the heat energy in the pebble layer 12 is prevented from being radiated too fast; when the heat energy emitted by the metal film 9 is not enough to maintain the proper temperature of the greenhouse, the gaps among the pebbles are increased, and the heat conduction efficiency of the pebbles is increased, so that the proper temperature of the sunlight greenhouse is maintained.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a solar greenhouse metallic film collection exothermic device which characterized in that: comprises a back slope (1), a wall body (2) and a shed surface (3); the novel greenhouse is characterized in that a wall body (2) is connected to the lower portion of the rear slope (1), a greenhouse surface (3) is connected to the front portion of the rear slope (1), a soil layer (4) is arranged below the greenhouse surface (3), a heat insulation layer (5) is arranged below the soil layer (4), and a circulating water layer (6) is arranged below the heat insulation layer (5).
2. The solar greenhouse metal film heat collecting and releasing device as claimed in claim 1, wherein: the wall body (2) comprises a honeycomb heat absorption layer (7), an insulating layer (11) and a pebble layer (12); the honeycomb heat absorption layer (7) is positioned in front of the wall body (2), the pebble layer (12) is positioned below the honeycomb heat absorption layer (7), the heat insulation layer (11) is positioned behind the honeycomb heat absorption layer (7) and the pebble layer (12), and clay bricks are arranged behind the heat insulation layer (11); the honeycomb heat absorption layer (7) is provided with a honeycomb concave surface (8) and a honeycomb convex surface (10), the honeycomb concave surface (8) and the honeycomb convex surface (10) are arranged in a staggered mode, and a metal film (9) is arranged in the honeycomb convex surface (10).
3. The solar greenhouse metal film heat collecting and releasing device as claimed in claim 2, wherein: the honeycomb convex surface (10) is of a hollow structure, a heat absorption fan (10-1) is arranged on the periphery of the honeycomb convex surface (10), a heat absorption channel (10-2) is arranged inside the honeycomb convex surface (10), a heat insulation wall (10-3) is arranged on the outer side of the heat absorption channel (10-2), the heat absorption channel (10-2) is connected with the heat absorption fan (10-1), the heat absorption channel (10-2) is converged with a heat transfer channel (10-4), and the heat transfer channel (10-4) is communicated with a pebble layer (12).
4. A solar greenhouse metal film heat collection and release device according to claim 1 or 2, characterized in that: the metal film (9) is inside to be equipped with rivers way (25), with being listed as rivers way (25) are connected with distributive pipe (26), and is a plurality of distributive pipe (26) link to each other with collector pipe (27), branch's water piping connection water pump (28) of collector pipe (27) below, the below of water pump (28) is connected with circulating water pipe (29), circulating water pipe (29) end-to-end connection has circulation water layer (6).
5. The solar greenhouse metal film heat collecting and releasing device as claimed in claim 2, wherein: the pebble layer (12) comprises pebbles, a heat dissipation port (13) and a temperature sensor (14); the cobble is located inside cobble layer (12), thermovent (13) distribute in cobble layer (12) outside, thermovent (13) rear is equipped with the fan, thermovent (13) top is equipped with temperature sensor (14), temperature sensor (14) and thermovent (13) and fan electric connection.
6. The solar greenhouse metal film heat collecting and releasing device as claimed in claim 6, wherein: a plurality of gap adjusting devices are arranged among the pebbles.
7. The solar greenhouse metal film heat collecting and releasing device as claimed in claim 7, wherein: the gap adjusting device comprises a motor (15), a first transmission rod (19) and a spiral piece (20); the motor (15) is connected with a driving shaft (16), the driving shaft (16) is connected with a first reduction gear (17), a second reduction gear (18) is meshed above the first reduction gear (17), a first transmission rod (19) is connected with the second reduction gear (18), and a plurality of spiral pieces (20) are arranged on the first transmission rod (19).
8. The solar greenhouse metal film heat collecting and releasing device as claimed in claim 7, wherein: a plurality of ram rods (30) are arranged on the spiral piece (20).
9. The solar greenhouse metal film heat collecting and releasing device as claimed in claim 7, wherein: the clearance adjusting device comprises a hydraulic push rod (22), a second transmission rod (23) and a branch (24); the hydraulic push rod (22) is electrically connected with the power supply (21), one side of the hydraulic push rod (22) is connected with a second transmission rod (23), and a plurality of branches (24) are arranged on the second transmission rod (23).
10. The solar greenhouse metal film heat collecting and releasing device as claimed in claim 9, wherein: the extending direction of the second transmission rod (23) and the branch (24) form an acute angle.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010489654.0A CN111587710B (en) | 2020-06-02 | 2020-06-02 | Sunlight greenhouse metal film heat collecting and releasing device |
| CN202111077036.6A CN113875448B (en) | 2020-06-02 | 2020-06-02 | Solar greenhouse metal film heat collecting and releasing device |
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| CN202010489654.0A CN111587710B (en) | 2020-06-02 | 2020-06-02 | Sunlight greenhouse metal film heat collecting and releasing device |
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| CN202111077036.6A Division CN113875448B (en) | 2020-06-02 | 2020-06-02 | Solar greenhouse metal film heat collecting and releasing device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113875448B (en) | 2023-09-22 |
| CN111587710B (en) | 2021-09-21 |
| CN113875448A (en) | 2022-01-04 |
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