CN211552118U - Greenhouse heating and refrigerating system - Google Patents

Greenhouse heating and refrigerating system Download PDF

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Publication number
CN211552118U
CN211552118U CN201922236801.9U CN201922236801U CN211552118U CN 211552118 U CN211552118 U CN 211552118U CN 201922236801 U CN201922236801 U CN 201922236801U CN 211552118 U CN211552118 U CN 211552118U
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China
Prior art keywords
greenhouse
pipe
prefabricated
main pipe
heat pump
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Withdrawn - After Issue
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CN201922236801.9U
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Chinese (zh)
Inventor
王钧玉
文韬
杨翀
王长山
孙振亮
赵为麒
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Shanghai Landsea Planning & Architecture Design Co ltd
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Shanghai Landsea Planning & Architecture Design Co ltd
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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
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/10—Geothermal energy
    • 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
    • Y02P60/14—Measures for saving energy, e.g. in green houses

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  • Central Heating Systems (AREA)

Abstract

The utility model discloses a greenhouse heating refrigerating system, include: the system comprises a buried pipe, a ground source heat pump, a prefabricated radiation plate, a keel, a ground screw foundation, a water inlet main pipe and a water return main pipe; the keel is arranged in the interior and the underground of the greenhouse through a ground screw foundation, the prefabricated radiation plate is fixed to the keel, and the prefabricated radiation plate is communicated with the ground source heat pump; the buried pipe is arranged outside the greenhouse and buried underground; the buried pipe is communicated with the ground source heat pump; the ground source heat pump sends circulating water into the prefabricated radiation plate through the buried pipe and the water inlet main pipe so as to adjust the temperature of the greenhouse, and the preheating radiation plate is communicated with the buried pipe through the water return main pipe so as to form water circulation. The ground source heat pump improves the heat level of soil, and the temperature of the greenhouse is adjusted through the tail end of the prefabricated radiation plate. The temperature of the greenhouse is adjusted by using the annual temperature-stable deep soil as a cold and heat source; the method has the advantages of low carbon, energy conservation and easy installation.

Description

Greenhouse heating and refrigerating system
Technical Field
The utility model belongs to the technical field of heating refrigeration, in particular to greenhouse heating refrigeration system.
Background
At present, agriculture is rapidly developed, and new states such as various soilless culture, agricultural experimental agricultural greenhouses, leisure sightseeing restaurants, ecological agricultural gardens and the like are developed, so that the requirements on production processes are more and more refined, efficient and economic, and higher requirements on thermal environment, energy conservation and environmental protection are provided for agricultural greenhouses and agricultural buildings.
The agricultural greenhouse thermal environment is mainly required to be heated, the current mainstream heat source side is a coal/gas hot water boiler, an electric heating or air source heat pump, the agricultural greenhouse is heated through a fan heater, radiating fins, ceiling radiation or the tail end of a wall surface vertical radiation plate, and the heat conversion efficiency and the heating effect on the agricultural greenhouse are obviously limited. Meanwhile, solar radiation is strong and the temperature is high in the southern agricultural greenhouse in summer, and the over-temperature phenomenon often occurs in the agricultural greenhouse, so that the crop production efficiency is negatively influenced. Therefore, the southern agricultural greenhouse has the requirements of heating in winter and cooling in summer.
SUMMERY OF THE UTILITY MODEL
The utility model provides a pair of greenhouse heating refrigerating system uses the circulating water to carry out the heat exchange as cold and hot source and deep soil, then inputs the temperature in order to adjust the greenhouse in the greenhouse, has advantages such as low carbon is energy-conserving, easily installation.
The utility model aims at providing a greenhouse heating refrigerating system, include: the system comprises a buried pipe, a ground source heat pump, a prefabricated radiation plate, a keel, a ground screw foundation, a water inlet main pipe and a water return main pipe;
the keel is arranged in the interior and the underground of the greenhouse through a ground screw foundation, the prefabricated radiation plate is fixed to the keel, and the prefabricated radiation plate is communicated with the ground source heat pump; the buried pipe is arranged outside the greenhouse and buried underground; the buried pipe is communicated with the ground source heat pump;
the ground source heat pump sends circulating water into the prefabricated radiation plate through the buried pipe and the water inlet main pipe so as to adjust the temperature of the greenhouse, and the preheating radiation plate is communicated with the buried pipe through the water return main pipe so as to form water circulation.
According to the technical scheme, the characteristics of good soil heat insulation performance, stable deep soil temperature throughout the year, warm in winter and cool in summer are utilized. The ground source heat pump sends circulating water into the prefabricated radiation plate through the buried pipe, and the ground source heat pump improves heat energy of the hot grade circulating water of the soil and exchanges heat with the greenhouse through the prefabricated radiation plate, so that the temperature in the greenhouse is adjusted.
Further, still include: a fermentation tank or a methane tank which exchanges heat with the circulating water;
the water return main pipe comprises at least two branches communicated with the buried pipe, one branch passes through the fermentation tank or the methane tank, and a valve for changing the flow direction of circulating water is arranged on the water return main pipe so that the circulating water flows through or does not flow through the fermentation tank or the methane tank.
According to the technical scheme, the fermentation tank preheats water in the buried pipe, so that the utilization rate of resources and the heating efficiency of the system are improved. The prefabricated radiation plate is fixed through fossil fragments, prevents that soil from sinking and causing prefabricated radiation plate displacement.
Further, the prefabricated radiation plate includes: the heat-insulation building block comprises a concrete slab, a heat-insulation bottom plate, a heat-storage cover plate and a PE-RT pipe;
the concrete plate is arranged above the keel and connected with the keel; a groove is formed above the concrete slab; the heat-preservation bottom plate and the heat storage cover plate are stacked in the groove from bottom to top, and the PE-RT pipe is clamped between the heat-preservation bottom plate and the heat storage cover plate;
the water inlet main pipe and the water return main pipe are communicated with the PE-RT pipe.
According to the technical scheme, the circulating water of the buried pipe sequentially enters the water inlet main pipe, the prefabricated radiation plate in the greenhouse and the water return main pipe through the suction force provided by the ground source heat pump to form a cycle, and the temperature of the greenhouse is adjusted through the prefabricated radiation plate in the circulating process.
Specifically, a concave cavity for containing the PE-RT pipe is arranged on the upper surface of the heat preservation bottom plate.
Preferably, the greenhouse heating and cooling system comprises a plurality of prefabricated radiant panels and a plurality of stop valves; the prefabricated radiation plates are connected in parallel into a circulating water path, and each parallel branch is provided with a stop valve.
This technical scheme realizes supplying water each branch road independent control through the stop valve. The user can conveniently open the stop valves according to the workload to adjust the temperature of the greenhouse.
Further, still include: further comprising: and the heat insulation plate is positioned outside the greenhouse along the line and vertically extends into the soil. The effect of heated board lies in reducing the temperature field of radiant panel and extends the temperature field diffusion of horizontal direction, reduces the waste of heat.
Through the utility model provides a pair of greenhouse heating refrigerating system can bring following at least one beneficial effect:
1. the soil heat preservation performance is good, the deep soil temperature is stable throughout the year, the soil belongs to stable and reliable renewable energy sources, and the soil heat preservation system is suitable for cold and heat sources of agricultural greenhouses, does not need to supply heat through coal or electric heating, and has the advantages of low carbon, energy conservation and good heating effect; has the refrigeration effect;
2. the circulating water collected by the buried pipe is sent into the pipeline of the prefabricated radiation plate through the ground source heat pump, so that the effect of adjusting the temperature of the greenhouse can be met, and the greenhouse has the advantage of convenience in installation.
3. One branch of the return water main pipe is communicated with the ground source heat pump through the fermentation tank. Wherein the temperature in the fermentation vat is higher, and the fermentation vat preheats buried pipe water supply, not only improves the utilization ratio of resource, has improved heating capacity moreover. The fermentation tank can also be a methane tank.
Drawings
The above features, technical features, advantages and modes of realisation of a greenhouse heating and cooling system will be further described in the following, in a clearly understandable manner, with reference to the accompanying drawings, which illustrate preferred embodiments.
Fig. 1 is a schematic structural diagram of a greenhouse heating and cooling system according to embodiment 1 of the present invention;
fig. 2 is a schematic structural view of a prefabricated radiation plate in embodiment 1 of the present invention;
fig. 3 is a schematic view of the installation of the prefabricated radiation plate in embodiment 1 of the present invention;
fig. 4 is a schematic structural view of a greenhouse heating and cooling system according to embodiment 2 of the present invention.
Description of the reference numerals
1. A buried pipe; 2. a ground source heat pump; 3. prefabricating a radiation plate; 301. a keel; 302. a concrete slab; 303. PE-RT pipe; 304. a water inlet main pipe; 305. a water return main pipe; 306. a stop valve; 307. a heat preservation bottom plate; 308. a heat storage cover plate; 4. a fermentation tank; 5. a thermal insulation board; 6. and (4) a valve.
Detailed Description
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
The utility model provides an embodiment of greenhouse heating refrigerating system, as shown in figure 1 include: the system comprises a buried pipe 1, a ground source heat pump 2 and a prefabricated radiation plate 3; the prefabricated radiation plate 3 is arranged on the shallow ground in the greenhouse, and the prefabricated radiation plate 3 is communicated with the ground source heat pump 2; the buried pipe 1 is arranged outside the greenhouse, and the buried pipe 1 is buried underground; circulating water in the buried pipe 1 enters the prefabricated radiation plates 3 under the pumping action of the ground source heat pump 2 to adjust the temperature of the greenhouse. Fossil fragments 301 are fixed through ground screw basis and shallow ground, and prefabricated radiant panel 3 is fixed on fossil fragments. Prevent that soil from sinking and causing prefabricated radiation plate displacement.
Because the soil heat preservation performance is good, the deep soil temperature is stable throughout the year, so the circulating water has the characteristics of being warm in winter and cool in summer. The ground source heat pump 2 sends circulating water into the prefabricated radiation plate 3 through the buried pipe 1, and heat energy of the circulating water exchanges heat with the temperature in the greenhouse through the prefabricated radiation plate 3, so that the temperature in the greenhouse is adjusted.
Specifically, as shown in fig. 2, the prefabricated radiation plate 3 includes: a concrete slab 302, a heat preservation bottom plate 307, a heat storage cover plate 308 and a PE-RT pipe 303; a concrete plate 302 is arranged above the keel 301 and connected with the keel 301; a groove is arranged above the concrete slab 302; the heat preservation bottom plate 307 and the heat storage cover plate 308 are stacked in the groove from bottom to top, and the PE-RT pipe 303 is clamped between the heat preservation bottom plate 307 and the heat storage cover plate 308; the water inlet main pipe and the water return main pipe are both communicated with the PE-RT pipe 303 so as to introduce or lead out circulating water into the prefabricated radiation plate 3. The upper surface of the insulating bottom plate 307 is provided with a cavity for accommodating the PE-RT tube 303. The reclaimed water of the buried pipe 1 sequentially enters the water inlet main pipe 304, the PE-RT pipe and the water return main pipe 305 through the ground source heat pump 2 to form a cycle, and the temperature of the greenhouse is regulated by the circulating water through the PE-RT pipe in the cycle process.
Further preferably, the greenhouse heating and cooling system can comprise a plurality of prefabricated radiant panels 3 and a plurality of stop valves; the prefabricated radiation plates are connected in parallel into a circulating water path, and each parallel branch is provided with a stop valve 306. Independent control of each water supply branch is achieved by a shut-off valve 306. The user can open the stop valves 306 according to the workload to adjust the temperature of the greenhouse. In addition, when one PE-RT pipe is damaged, the independent maintenance can be realized, and the normal operation of other prefabricated radiant panels is not influenced. The PE-RT pipe is coiled between the heat preservation bottom plate and the heat storage cover plate.
Optionally, the keel is made of hard PP polypropylene plastic or light steel subjected to anticorrosion treatment, and has good bearing capacity, so that the prefabricated radiation plate is prevented from being displaced due to soil collapse. The concrete slab has good corrosion resistance, and prevents the prefabricated radiation plate from being corroded due to the contact of soil and the prefabricated radiation plate. The heat preservation bottom plate is preferably a heat preservation plate with low water absorption rate, such as an extruded sheet; the cover plate is made of a material with good heat storage performance and corrosion resistance, the outer surface of the prefabricated radiation plate is kept dry, the heat loss of the prefabricated radiation plate is reduced, and the heating and refrigerating efficiency of the prefabricated radiation plate is improved. The ground source heat pump 2 can be arranged inside the greenhouse and can also be arranged outside the greenhouse. In order to eliminate the heat and noise generated during the operation of the ground source heat pump 2, the ground source heat pump 2 is disposed inside the greenhouse in the present embodiment.
Example 2
On the basis of embodiment 1, the utility model provides a pair of greenhouse heating refrigerating system, it further includes carries out the fermentation vat 4 that preheats to the circulating water. The return water main pipe is communicated to the buried pipe and comprises a first branch and a second branch, wherein the first branch is communicated with the ground source heat pump 2 through the fermentation tank 4, and the second branch is directly communicated with the ground source heat pump 2. And valves 6 are arranged on the first branch and the second branch. When the system refrigerates the greenhouse in summer: and closing the valve 6 on the first branch, opening the valve 6 on the second branch, and directly sending the circulating water to the prefabricated radiation plate by the ground source heat pump 2. When the system heats the greenhouse in winter: the valve 6 on the first branch is opened, the valve 6 on the second branch is closed, and the circulating water is preheated by the fermentation tank 4 before being sent to the prefabricated radiation plate by the ground source heat pump 2, so that the utilization rate of resources and the heating efficiency of the system are improved. The fermentation tank can also be changed into a methane tank.
As shown in fig. 4, further, the greenhouse heating and cooling system further includes: and the heat insulation plate 5 is positioned outside the greenhouse along the line and vertically extends into the soil. The thermal insulation board 5 has the effects of reducing the temperature field of the radiation board from diffusing along the temperature field in the horizontal direction and reducing heat waste.
The utility model discloses still disclose the embodiment of a greenhouse heating and cooling system's installation method, it includes following step:
s100, arranging a keel 301 on a shallow ground through ground screws to form a radiation plate;
the keel is made of hard PP polypropylene plastic or light steel subjected to anticorrosive treatment, and has good bearing capacity. Its aim at supports prefabricated radiation plate, prevents that soil from sinking and causing prefabricated radiation plate displacement.
S200, fixing a concrete plate 302 above a keel 301 through bolts, and arranging a heat preservation bottom plate 308 above the concrete plate 302; embedding a plurality of PE-RT pipes in the heat preservation bottom plate 308, and covering the heat storage cover plate above the heat preservation bottom plate 308 to form a prefabricated radiation plate;
s300, burying the buried pipe 1 underground to supply circulating water, and communicating with the ground source heat pump 2; the water inlet manifold 304 and the water return manifold 305 are respectively communicated with the ground source heat pump 2 and the PE-RT pipe.
Specifically, firstly, a plurality of ground screws are arranged on the ground; next, arranging the keel on the ground screw; arranging the prefabricated radiation plate on the keel, wherein the prefabricated radiation plate is prefabricated and molded before installation and can be used after being directly installed on the keel; next, the prefabricated radiation plate is communicated with a ground edge heat pump through a water inlet main pipe and a water return main pipe; and next, burying the buried pipe underground, wherein a first branch in the return water main pipe is communicated with the ground source heat pump through the fermentation tank, and a second branch in the buried pipe is directly communicated with the ground source heat pump. The installation of the system can be completed by implementing the steps S100, S200 and S300.
Further, in step S300:
each PE-RT pipe is respectively connected with a water inlet main pipe 304 and a water return main pipe 305 to form a water supply branch, and a stop valve 306 is arranged on each water supply branch.
Further, in step S300:
at least one branch of the buried pipe 1 is communicated with a ground source heat pump 2 through a fermentation tank 4, and a valve 6 for changing the flow direction of water in the buried pipe 1 is arranged on the buried pipe 1.
It is worth mentioning that the prefabricated radiation panel 3 can be installed in different positions according to different environments. For crops with developed root systems and crops needing frequent soil replacement and cultivation, the prefabricated radiation plate 3 is suitable for being laid on the lower part of soil where non-crops directly grow, such as ridges, personnel corridors and the like; for crops with simple root systems with shallow depth of penetration, the plants can be placed in the soil below the crop production area, so that the optimal heating/cooling effect is ensured. Soilless culture/leisure sightseeing dining room, etc.: can be directly placed in soil below a crop production area/a tourist activity area to perform central heating/cooling for a key thermal environment control area. The laying depth of the prefabricated radiation plate 3 is determined according to project climate and geological hydrology, and the traditional agricultural proposal is determined according to the depth of crop roots; other functional greenhouses suggest laying depths of 20mm to 50 mm.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (6)

1. A greenhouse heating and cooling system, comprising: the system comprises a buried pipe, a ground source heat pump, a prefabricated radiation plate, a keel, a ground screw foundation, a water inlet main pipe and a water return main pipe;
the keel is arranged in the interior and the underground of the greenhouse through a ground screw foundation, the prefabricated radiation plate is fixed to the keel, and the prefabricated radiation plate is communicated with the ground source heat pump; the buried pipe is arranged outside the greenhouse and buried underground; the buried pipe is communicated with the ground source heat pump;
the ground source heat pump sends circulating water into the prefabricated radiation plates through the buried pipe and the water inlet main pipe so as to adjust the temperature of the greenhouse, and the prefabricated radiation plates are communicated with the buried pipe through the water return main pipe so as to form water circulation.
2. A greenhouse heating and cooling system as claimed in claim 1, further comprising: a fermentation tank or a methane tank which exchanges heat with the circulating water;
the water return main pipe comprises at least two branches communicated with the buried pipe, one branch passes through the fermentation tank or the methane tank, and a valve for changing the flow direction of circulating water is arranged on the water return main pipe so that the circulating water flows through or does not flow through the fermentation tank or the methane tank.
3. A greenhouse heating and cooling system as claimed in claim 1, wherein the prefabricated radiant panel comprises: the heat-insulation building block comprises a concrete slab, a heat-insulation bottom plate, a heat-storage cover plate and a PE-RT pipe;
the concrete plate is arranged above the keel and connected with the keel; a groove is formed above the concrete slab; the heat-preservation bottom plate and the heat storage cover plate are stacked in the groove from bottom to top, and the PE-RT pipe is clamped between the heat-preservation bottom plate and the heat storage cover plate;
the water inlet main pipe and the water return main pipe are communicated with the PE-RT pipe.
4. A greenhouse heating and cooling system as claimed in claim 3, wherein the upper surface of the thermal insulation base plate is provided with a cavity for receiving the PE-RT pipe.
5. A greenhouse heating and cooling system as claimed in claim 3, including a plurality of said prefabricated radiant panels and a plurality of shut-off valves; the prefabricated radiation plates are connected in parallel into a circulating water path, and each parallel branch is provided with a stop valve.
6. A greenhouse heating and cooling system as claimed in claim 3, further comprising: and the heat insulation plate is positioned outside the greenhouse along the line and vertically extends into the soil.
CN201922236801.9U 2019-12-13 2019-12-13 Greenhouse heating and refrigerating system Withdrawn - After Issue CN211552118U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922236801.9U CN211552118U (en) 2019-12-13 2019-12-13 Greenhouse heating and refrigerating system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922236801.9U CN211552118U (en) 2019-12-13 2019-12-13 Greenhouse heating and refrigerating system

Publications (1)

Publication Number Publication Date
CN211552118U true CN211552118U (en) 2020-09-22

Family

ID=72506334

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922236801.9U Withdrawn - After Issue CN211552118U (en) 2019-12-13 2019-12-13 Greenhouse heating and refrigerating system

Country Status (1)

Country Link
CN (1) CN211552118U (en)

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