CN109156221B - Water circulation heat storage device for sunlight greenhouse - Google Patents
Water circulation heat storage device for sunlight greenhouse Download PDFInfo
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- CN109156221B CN109156221B CN201811348099.9A CN201811348099A CN109156221B CN 109156221 B CN109156221 B CN 109156221B CN 201811348099 A CN201811348099 A CN 201811348099A CN 109156221 B CN109156221 B CN 109156221B
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- 238000005338 heat storage Methods 0.000 title claims abstract description 130
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 66
- 238000009413 insulation Methods 0.000 claims description 14
- 238000009825 accumulation Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 8
- 239000012780 transparent material Substances 0.000 claims description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000011888 foil Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims 1
- 238000005286 illumination Methods 0.000 abstract description 29
- 241000233866 Fungi Species 0.000 abstract description 5
- 229910052799 carbon Inorganic materials 0.000 abstract description 3
- 241001465754 Metazoa Species 0.000 abstract description 2
- 238000009395 breeding Methods 0.000 abstract description 2
- 230000001488 breeding effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 7
- 239000012774 insulation material Substances 0.000 description 5
- 235000013311 vegetables Nutrition 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 239000011449 brick Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 230000002595 cold damage Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 230000009746 freeze damage Effects 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
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Classifications
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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
- A01G9/1469—Greenhouses 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
- A01G18/00—Cultivation of mushrooms
- A01G18/60—Cultivation rooms; Equipment therefor
-
- 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
- A01G18/00—Cultivation of mushrooms
- A01G18/60—Cultivation rooms; Equipment therefor
- A01G18/69—Arrangements for managing the environment, e.g. sprinklers
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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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K31/00—Housing birds
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/50—Livestock or poultry management
- Y02P60/52—Livestock or poultry management use of renewable energies
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Mycology (AREA)
- Birds (AREA)
- Greenhouses (AREA)
Abstract
The invention relates to a solar greenhouse water circulation heat storage device, which comprises a heat storage layer (2), wherein the heat storage layer (2) is arranged on the inner side of the north part of a solar greenhouse or on the inner side of the front roof of the solar greenhouse, the heat storage layer (2) comprises a transparent outer layer (6) and a transparent inner layer (7), a plurality of air bubbles with different sizes and different shapes are arranged between the transparent outer layer (6) and the transparent inner layer (7), and the plurality of air bubbles with different sizes and different shapes enable the inside of the heat storage layer (2) to form a labyrinth type water flow channel (8). When the heat storage layer is arranged on the inner side of the north part of the sunlight greenhouse, the illumination and temperature performance of the sunlight greenhouse can be improved through a low-carbon environment-friendly ecological form, and the problems of insufficient heat storage and uneven illumination of the sunlight greenhouse in winter are solved; when the heat storage layer is arranged on the inner side of the front roof of the sunlight greenhouse, the heat storage layer has double functions of heat storage and shading, and solves the problems of shading and heat storage of crops and animals with low requirements on illumination, such as edible fungi, breeding industry and the like.
Description
Technical Field
The invention belongs to the technical field of agricultural facilities, and particularly relates to a water circulation heat storage device for a sunlight greenhouse.
Background
Sunlight greenhouse is an important gardening facility type in northern areas of China at present. The traditional sunlight greenhouse has the structural characteristics of three walls and one slope, the structure not only has good lighting performance, but also can save more than 85% of energy consumption compared with a large-scale multi-span greenhouse because the ground and the three walls are main heat storages, has the excellent characteristics of high efficiency and energy conservation, promotes the rapid development of the sunlight greenhouse industry in China, reaches 1400 tens of thousands mu in the year of 2016, has 1 hundred million tons of annual vegetables and 3000 hundred million and multiple products, solves the problem of vegetable supply in winter half year in northern China, also solves the prop industry of three farmers, and generates huge economic, social and ecological benefits. However, in the severe winter in north, three walls and the ground of the sunlight greenhouse are both passively subjected to solar energy, heat storage is insufficient, illumination is uneven, the heat storage effect of the sunlight greenhouse cannot completely meet the requirements of the growth environment of warm-loving vegetable crops, especially in the low-temperature weak light condition in winter, cold damage or freeze damage phenomenon often occurs, meanwhile, illumination in the sunlight greenhouse is gradually weakened from south to north, namely illumination of the north part of the greenhouse is weakest, and therefore crops are easy to overgrow, grow poorly, and the yield and quality of the crops are reduced. In actual production, farmers often hang the reflective film on the back wall to solve the problem of weak illumination on the north side of the greenhouse, and if the reflective film is hung, the heat storage efficiency of water circulation is inevitably affected. In addition, the sunlight greenhouse has low illumination requirements, and farmers generally set an external sunshade net at the top of the greenhouse to reduce illumination, so that heat accumulation in the greenhouse is reduced, and the temperature of the sunlight greenhouse cannot be ensured, and the existing sunlight greenhouse also has contradiction between heat accumulation and shading.
Disclosure of Invention
According to the problems of the existing sunlight greenhouse, the invention provides the water circulation heat storage device of the sunlight greenhouse, when the heat storage layer is arranged on the inner side of the north part of the sunlight greenhouse, the illumination and temperature performance of the sunlight greenhouse can be improved through a low-carbon environment-friendly ecological form, and the problems of insufficient heat storage and uneven illumination of the sunlight greenhouse in winter are solved; when the heat storage layer is arranged on the inner side of the front roof of the sunlight greenhouse, the heat storage layer has double functions of heat storage and shading, and solves the shading and heat storage problems of edible fungi, breeding industry and the like in animal and plant production with low illumination requirements.
In order to achieve the above purpose, the invention adopts the technical scheme that: the utility model provides a sunlight greenhouse hydrologic cycle heat accumulation device, including the heat accumulation layer, this heat accumulation layer sets up in the inside of sunlight greenhouse north or set up in the inside of sunlight greenhouse front roof, the heat accumulation layer includes transparent outer and transparent inlayer, sets up innumerable different size, the different air bubble of shape between transparent outer and the transparent inlayer, and innumerable different size, the different air bubble of shape make the inside labyrinth water flow channel that forms of heat accumulation layer.
Further, according to the solar greenhouse water circulation heat storage device, the air bubbles comprise spherical air bubbles, elliptic air bubbles and cylindrical air bubbles, and the spherical air bubbles, the elliptic air bubbles and the cylindrical air bubbles are arranged in the heat storage layer in a staggered manner.
Further, according to the solar greenhouse water circulation heat storage device, the air bubbles, the transparent outer layer and the transparent inner layer are integrally formed.
Further, according to the sunlight greenhouse water circulation heat storage device, the water inlet pipe and the water return pipe are respectively arranged at two ends of the heat storage layer, and are communicated with the labyrinth type water flow channel.
Further, when the heat storage layer is arranged on the inner side of the north part of the sunlight greenhouse, the light-reflecting heat-increasing layer and the heat insulation layer are additionally arranged, the heat insulation layer is arranged between the heat storage layer and the inner wall of the sunlight greenhouse, and the light-reflecting heat-increasing layer is arranged between the heat storage layer and the heat insulation layer.
Further, the sunlight greenhouse water circulation heat storage device comprises a light reflection heating layer and a heat storage layer, wherein the light reflection heating layer comprises a closed cavity and a light reflection layer arranged in the closed cavity.
Further, according to the sunlight greenhouse water circulation heat storage device, the light reflecting layer is made of light reflecting materials, and the light reflecting materials are tinfoil paper, light reflecting films or aluminum foils.
Further, according to the solar greenhouse water circulation heat storage device, the heat insulation layer is composed of a heat insulation material with the heat conductivity of less than 0.05W/m.k.
Further, according to the solar greenhouse water circulation heat storage device, when the heat storage layer is arranged on the inner side of the front roof of the solar greenhouse, the width of the heat storage layer is the span between adjacent greenhouse frameworks, and the length of the heat storage layer is smaller than the length of the greenhouse frameworks.
Further, according to the solar greenhouse water circulation heat storage device, the heat storage layer is arranged between the top air outlet and the bottom air outlet of the solar greenhouse.
The beneficial technical effects of the invention are as follows:
1. according to the invention, the heat storage layer is arranged on the inner side of the north part of the sunlight greenhouse, so that the water flow speed in the channel can be slowed down, the illumination time can be prolonged, the heat storage efficiency can be improved, and the temperature performance of the sunlight greenhouse can be enhanced; the inner layer and the outer layer of the heat storage layer are both made of transparent materials, and the transparent materials have strong light reflection effect, so that the illumination intensity of the north part in the sunlight greenhouse can be improved, and the illumination uniformity between the south and the north of the sunlight greenhouse is ensured.
2. According to the solar greenhouse, the light-reflecting temperature-increasing layer is arranged on the inner side of the north part of the solar greenhouse and consists of the closed cavity and the light-reflecting layer, the closed cavity has a greenhouse effect, and the light-reflecting layer has a strong light-reflecting effect, so that the temperature in the light-reflecting temperature-increasing layer is increased, heat is transferred to the heat storage layer through heat conduction, the water flow temperature of the heat storage layer is further increased, and the heat storage effect of the heat storage layer is enhanced.
3. The heat storage layer is arranged on the inner side of the front roof of the sunlight greenhouse, so that the active heat storage of the sunlight greenhouse can be increased, the temperature can be increased, sunlight can be shielded, the illumination intensity can be reduced, the contradiction between shading and heat storage can be solved, and a favorable living environment is provided for the production of edible fungi, the cultivation industry and the like.
Drawings
FIG. 1 is a schematic diagram of the water circulation heat storage device of the sunlight greenhouse;
FIG. 2 is a block diagram of a thermal storage layer, a light reflecting warming layer, and a thermal insulating layer;
FIG. 3 is a side view of a thermal storage layer;
FIG. 4 is a graph comparing the heat storage capacity of the heat storage device of the present invention with that of a conventional solar plate heat storage device in a sunny winter;
FIG. 5 is a graph comparing the distribution of illumination intensity in a sunlight greenhouse on sunny days in winter with a conventional sunlight plate type heat storage device;
fig. 6 is a schematic structural view of a solar greenhouse.
In the figure:
1-water inlet pipe 2-heat storage layer 3-light reflection heating layer 4-heat insulation layer 5-water return pipe
6-transparent outer layer 7-transparent inner layer 8-labyrinth type water flow channel 9-spherical air bubble
10-elliptical air bubbles 11-cylindrical air bubbles 12-closed cavity 13-reflective layer
14-heat insulation material 15-greenhouse skeleton 16-top air outlet 17-bottom air outlet
18-roller blind
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
As shown in fig. 1, the solar greenhouse water circulation heat storage device provided by the invention comprises a heat storage layer 2, wherein the heat storage layer 2 is arranged on the inner side of the north part of the solar greenhouse or on the inner side of the front roof of the solar greenhouse.
As shown in fig. 2, the heat storage layer 2 includes a transparent outer layer 6 and a transparent inner layer 7, and a plurality of air bubbles having different sizes and different shapes are distributed between the transparent outer layer 6 and the transparent inner layer 7, and the plurality of air bubbles having different sizes and different shapes form a labyrinth-type water flow channel 8 inside the heat storage layer 2. The air bubbles include a spherical air bubble 9, an elliptical air bubble 10, and a columnar air bubble 11, and are not limited to the three types of air bubbles, but other shapes of air bubbles may be used. The spherical air bubbles 9, the elliptical air bubbles 10, and the columnar air bubbles 11 are distributed in the heat storage layer 2 in a staggered manner, as shown in fig. 3. The air bubbles and the heat storage layer 2 are integrally formed, so that the firmness of the air bubbles is ensured. The transparent outer layer 6 and the transparent inner layer 7 are both composed of a transparent material, which may be a transparent shed film or a transparent hard PE plate, and if in the case of an arc-shaped back wall, the transparent outer layer is preferably a transparent hard PE plate, and since the transparent shed film is a flexible material, it has no bending strength and requires an additional supporting structure.
The upper end of the heat accumulation layer 2 is provided with a water inlet pipe 1, the lower end is provided with a water return pipe 5, and the water inlet pipe 1 and the water return pipe 5 are respectively communicated with the labyrinth type water flow channel 8. The water flow enters the heat storage layer 2 from the water inlet pipe 1, carries out heat storage through illumination, flows out from the water return pipe 5 and returns to the heat storage water tank, realizes active heat accumulation of solar energy through continuous water flow circulation, finally ensures the daytime and nighttime temperature of the sunlight greenhouse in cold winter, and creates proper environmental conditions for crop growth.
Example 1
When the heat accumulating layer 2 is arranged on the inner side of the north part of the sunlight greenhouse, the light reflecting and warming layer 3 and the heat insulating layer 4 are additionally arranged. The heat insulation layer 4 is arranged between the heat storage layer 2 and the inner wall of the sunlight greenhouse, and the light reflection heating layer 3 is arranged between the heat storage layer 2 and the heat insulation layer 4. The light-reflecting and temperature-increasing layer 3 comprises a closed cavity 12 and a light-reflecting layer 13 arranged in the closed cavity 12. The closed cavity 12 is enclosed by a transparent material. The reflecting layer 13 is made of reflecting material, and the reflecting material is tinfoil paper, reflecting film or aluminum foil, so that the reflecting effect is good. The heat insulation layer 4 is composed of a heat insulation material 14 with the heat conductivity less than 0.05W/m.k, the heat insulation material 14 can be flexible rubber and plastic cotton heat insulation material, polyethylene foam plastic or glass cotton, the heat insulation performance is good, and the heat of the light reflection heating layer 3 is ensured not to be lost to the outside of the sunlight greenhouse.
Wherein, the shape of the heat storage layer 2 is adapted to the shape of the north part of the sunlight greenhouse, and the thickness of the heat storage layer 2 is 2-100mm; the height of the heat storage layer 2 is 1-10m, which can be determined according to the north height of the sunlight greenhouse and is smaller than the north height of the sunlight greenhouse; the width of the heat accumulating layer 2 is 0.5-3m, and the heat accumulating layer is arranged in parallel on the inner side of the north part of the sunlight greenhouse, and is smaller than the whole width of the sunlight greenhouse according to the width of the rear wall of the sunlight greenhouse. The closed cavity is 2-10cm. The thickness of the insulating layer 4 is determined according to actual needs. The structure and the size are not limited by the structure and the size of the invention, and the structures and the sizes of the heat accumulating layer 2, the light reflecting and temperature increasing layer 3 and the heat insulating layer 4 can be correspondingly changed along with the structure and the size of the sunlight greenhouse.
In order to better ensure the temperature of the sunlight greenhouse at night in cold winter, the invention arranges the rolling curtain 18 at the outer side of the top of the sunlight greenhouse, and the rolling curtain 18 rolls up in daytime, thereby ensuring the normal lighting of the sunlight greenhouse, and the rolling curtain 18 is put down at night, thereby ensuring the heat preservation of the sunlight greenhouse.
The invention is provided with a heat storage layer 2 on the inner side of the north part, and a plurality of air bubbles with different sizes and different shapes are arranged in the heat storage layer, so that labyrinth water flow channels are formed in the heat storage layer by the plurality of air bubbles with different sizes and different shapes. The water flow flows along the gaps between the air bubbles in different shapes, the speed of the water flow is reduced, the time is prolonged, the illumination time is prolonged, the heat storage efficiency is improved, a greenhouse effect is formed in the air bubbles, the temperature in the air bubbles can reach about 40 ℃, the temperature of the water flow is further improved through heat conduction, and the heat storage of the water flow is further improved. As shown in fig. 4, the water circulation heat storage device is a comparison diagram of the heat storage capacity of the water circulation heat storage device and the heat storage capacity of the existing sunlight plate type heat storage device in sunny days in winter, and the novel water circulation heat storage device is improved by 26.6% compared with the heat storage capacity of the sunlight plate type heat storage device, so that the effect is very obvious.
The invention is provided with the light-reflecting and temperature-increasing layer 3 on the inner side of the north part, the light-reflecting and temperature-increasing layer is provided with the closed cavity and the light-reflecting layer, the closed cavity has a greenhouse effect under the action of illumination, the light-reflecting layer has a light-reflecting effect under the action of illumination, and the greenhouse effect adds the light reflection of the light-reflecting material, so that the temperature in the light-reflecting and temperature-increasing layer is higher and can reach about 45 ℃ at most. Therefore, the high temperature of the reflective heating layer plays a role in further heating the water flow in the heat storage layer.
In addition, the transparent outer layer 6, the transparent inner layer 7 and the light reflecting layer 13 are made of transparent materials, have strong light reflecting effect on the north part of the sunlight greenhouse, change the defect of weak illumination on the north of the sunlight greenhouse, ensure that the illumination distribution between the north and the south of the sunlight greenhouse is uniform, and the crops grow regularly, thereby improving the yield and the quality. As shown in fig. 5, the water circulation heat storage device is a graph comparing the illumination intensity in the sunlight greenhouse in winter with the existing sunlight plate type heat storage device, and the graph shows that the novel water circulation heat storage device improves the illumination intensity by 34.5% compared with the existing sunlight plate type heat storage device, so that the photosynthesis of plants is enhanced, the growth of crops is promoted, and the water circulation heat storage device has great significance to the sunlight greenhouse environment with low temperature and weak light in winter.
The invention is provided with the heat insulation layer 4 at the inner side of the north part, and the heat insulation layer 4 is positioned at the outer side of the heat storage and brightening layer and is tightly attached to the rear wall of the sunlight greenhouse. The heat of the light-reflecting temperature-increasing layer 3 can be prevented from losing to the north, and the heat is conducted into the heat storage layer 2, so that the heat storage of the heat storage layer is ensured.
In conclusion, the invention fully utilizes solar energy to improve the heat quantity and heat storage of water, simultaneously enhances the illumination environment of a sunlight greenhouse, realizes the effective combination of heat storage and temperature increase and reflection and light enhancement, the sunlight greenhouse illumination and temperature performance is remarkably improved, a foundation is laid for energy saving and efficient production of the sunlight greenhouse vegetables, low-carbon agriculture is realized, and the sunlight greenhouse vegetable greenhouse illumination and temperature control method is suitable for popularization and application. In addition, the heat storage mode provides a heat storage means for building the assembled solar greenhouse, can replace the functions of three-side soil walls, brick walls and other heat storages, not only improves the environmental control performance of the solar greenhouse, but also reduces the building cost of the solar greenhouse, improves the standardized building speed of the solar greenhouse, reduces the damage of the soil walls and the brick walls to the land, protects the resource environment, and the heat storage mode far exceeds the heat storage effect of soil, bricks and stones, thereby being an ideal solar greenhouse heat storage body in future China.
Example 2
When the heat accumulating layer 2 is arranged on the inner side of the front roof of the sunlight greenhouse, the width of the heat accumulating layer is the span between the adjacent greenhouse frameworks 15, and the length of the heat accumulating layer is smaller than the length of the greenhouse frameworks 15. In order to ensure proper ventilation of the solar greenhouse, the thermal storage layer 2 may be arranged between the top and bottom vents 16, 17 of the solar greenhouse, as shown in fig. 6.
For edible fungi cultivation, even in winter severe cold season, edible fungi such as mushrooms still need a certain weak illumination, and meanwhile, a certain amount of heat is accumulated to ensure the temperature at night. Therefore, the heat storage layer is independently arranged between adjacent frameworks at the top of the sunlight greenhouse, so that the sunlight greenhouse can be shaded in daytime, and the aim of heat storage is fulfilled, so that the heat and temperature requirements of the sunlight greenhouse at night are ensured, the use of a sunshade net is avoided, and the defects of shading and heat storage are reduced. In addition, in summer high temperature season, groundwater is adopted, and the temperature in the sunlight greenhouse can be obviously reduced through the circulation of the heat storage layer.
The north part refers to the female surface and the backlight surface.
The sunlight greenhouse water circulation heat storage device is not limited to the specific embodiment, and other embodiments are obtained by a person skilled in the art according to the technical scheme of the invention, and the sunlight greenhouse water circulation heat storage device also belongs to the technical innovation scope of the invention.
Claims (9)
1. The utility model provides a sunlight greenhouse hydrologic cycle heat accumulation device, includes heat accumulation layer (2), and this heat accumulation layer (2) set up in sunlight greenhouse north inboard or set up in sunlight greenhouse front roof inboard, characterized by: the heat storage layer (2) comprises a transparent outer layer (6) and a transparent inner layer (7), and a plurality of air bubbles with different sizes and different shapes are arranged between the transparent outer layer (6) and the transparent inner layer (7), so that labyrinth water flow channels (8) are formed in the heat storage layer (2) by the plurality of air bubbles with different sizes and different shapes; when the heat storage layer (2) is arranged on the inner side of the north of the sunlight greenhouse, the light-reflecting and temperature-increasing layer (3) and the heat insulation layer (4) are additionally arranged, the heat insulation layer (4) is arranged between the heat storage layer (2) and the inner wall of the sunlight greenhouse, and the light-reflecting and temperature-increasing layer (3) is arranged between the heat storage layer (2) and the heat insulation layer (4).
2. The sunlight greenhouse water circulation heat storage device as claimed in claim 1, wherein: the air bubbles comprise spherical air bubbles (9), elliptic air bubbles (10) and cylindrical air bubbles (11), and the spherical air bubbles (9), the elliptic air bubbles (10) and the cylindrical air bubbles (11) are arranged in the heat storage layer (2) in a staggered manner.
3. The sunlight greenhouse water circulation heat storage device as claimed in claim 2, wherein: the air bubbles, the transparent outer layer (6) and the transparent inner layer (7) are integrally formed; the transparent outer layer (6) and the transparent inner layer (7) are both made of transparent materials, and the transparent materials are transparent greenhouse films or transparent hard PE plates.
4. A sunlight greenhouse water circulation heat storage device as claimed in claim 3, wherein: the two ends of the heat storage layer (2) are respectively provided with a water inlet pipe (1) and a water return pipe (5), and the water inlet pipe (1) and the water return pipe (5) are communicated with the labyrinth type water flow channel (8).
5. The sunlight greenhouse water circulation heat storage device as claimed in claim 4, wherein: the light-reflecting and temperature-increasing layer (3) comprises a closed cavity (12) and a light-reflecting layer (13) arranged in the closed cavity (12).
6. The sunlight greenhouse water circulation heat storage device according to claim 5, wherein: the reflecting layer (13) is made of reflecting materials, and the reflecting materials are tinfoil paper, reflecting films or aluminum foils.
7. The sunlight greenhouse water circulation heat storage device as claimed in claim 6, wherein: the heat insulating layer (4) is composed of a heat insulating material having a heat conductivity of less than 0.05W/m.k.
8. The sunlight greenhouse water circulation heat storage device as claimed in claim 7, wherein: when the heat storage layer (2) is arranged on the inner side of the sunlight greenhouse front roof, the width of the heat storage layer is the span between adjacent greenhouse frameworks (15), and the length of the heat storage layer is smaller than the length of the greenhouse frameworks (15).
9. The sunlight greenhouse water circulation heat storage device of claim 8, wherein: the heat storage layer (2) is arranged between the top air outlet (16) and the bottom air outlet (17) of the sunlight greenhouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811348099.9A CN109156221B (en) | 2018-11-13 | 2018-11-13 | Water circulation heat storage device for sunlight greenhouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811348099.9A CN109156221B (en) | 2018-11-13 | 2018-11-13 | Water circulation heat storage device for sunlight greenhouse |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109156221A CN109156221A (en) | 2019-01-08 |
| CN109156221B true CN109156221B (en) | 2024-01-05 |
Family
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| CN110178600B (en) * | 2019-06-28 | 2021-10-29 | 云南旭滇农业技术有限公司 | Intelligent greenhouse for heat collection by greenhouse effect and heat exchange of fan coil and environment control method |
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