CN113692892A - Circulating air temperature control greenhouse system and temperature control method thereof - Google Patents
Circulating air temperature control greenhouse system and temperature control method thereof Download PDFInfo
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- CN113692892A CN113692892A CN202110947518.6A CN202110947518A CN113692892A CN 113692892 A CN113692892 A CN 113692892A CN 202110947518 A CN202110947518 A CN 202110947518A CN 113692892 A CN113692892 A CN 113692892A
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- 238000004378 air conditioning Methods 0.000 claims abstract description 15
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- 238000009413 insulation Methods 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002918 waste heat Substances 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
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- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
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- 230000001939 inductive effect Effects 0.000 abstract description 3
- 239000003570 air Substances 0.000 description 201
- 238000001816 cooling Methods 0.000 description 16
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- 238000005057 refrigeration Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 241000233855 Orchidaceae Species 0.000 description 2
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- 241000196324 Embryophyta Species 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
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- 239000012080 ambient air Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 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
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
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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
- A01G9/22—Shades or blinds for greenhouses, or the like
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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 circulating air temperature control greenhouse system which comprises a main greenhouse, a temperature adjusting chamber, an air return chamber, a wet curtain, an air conditioning coil pipe and a circulating pipeline, wherein a support for placing a potted plant is arranged in the main greenhouse; the circulating pipeline comprises a plurality of groups of circulating units which are arranged in parallel, each circulating unit comprises an air outlet pipe, a return air inlet pipe and a return air pipe, the air outlet pipes are arranged at the tops of the main greenhouses, fans for inducing air and a plurality of air distribution holes for discharging air are arranged on the air outlet pipes, and the roots of the air outlet pipes are communicated to the temperature regulating greenhouse through vertical air inducing pipes; the air return inlet pipe is arranged in the main greenhouse and is far away from one end of the temperature adjusting chamber, the root part of the air return inlet pipe is communicated to the air return chamber through an underground laid air return pipe, and a wet curtain and an air conditioning coil pipe are arranged on an air outlet of the air return chamber. According to the circulating air temperature control greenhouse system and the temperature control method thereof, the uniform flowing circulation of the air in the greenhouse can be increased through the arrangement of the circulating pipeline, and the temperature controllability in the greenhouse is good.
Description
Technical Field
The invention relates to the technical field of flower greenhouse temperature control, in particular to a circulating air temperature control greenhouse system and a temperature control method thereof.
Background
In horticultural production, greenhouses have now become an essential infrastructure for the cultivation of flowers. The production process of greenhouse flower cultivation is basically carried out in a man-made control environment, and is less influenced by natural conditions, particularly external meteorological conditions. The favorable microclimate in the greenhouse can be maintained, and the most suitable environmental condition for the growth of flowers is created.
In the big-arch shelter is cultivated to current orchid, temperature control management is comparatively extensive, often adopts built-in many places warm braw pipe piece to heat when the temperature is low and heats the temperature, mostly carries out cooling through the wet curtain mode of fan cooperation when the temperature is high. The temperature adjusting mode usually has hysteresis, the air flow speed in the greenhouse is low, the temperature distribution is not uniform, and the normal growth of orchid seedling cultivation is influenced.
Therefore, it is necessary to develop a circulating air temperature control greenhouse system and a temperature control method thereof.
Disclosure of Invention
The invention aims to provide a circulating air temperature control greenhouse system, which can increase the uniform flowing circulation of air in a greenhouse through the arrangement of a circulating pipeline, has good temperature controllability in the greenhouse and is beneficial to flower cultivation and growth.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention relates to a circulating air temperature control greenhouse system which comprises a main greenhouse, a temperature adjusting chamber, an air return chamber, a wet curtain, an air conditioning coil pipe and a circulating pipeline, wherein a support for placing potted plants is arranged in the main greenhouse; the circulating pipeline comprises a plurality of groups of circulating units which are arranged in parallel, each circulating unit comprises an air outlet pipe, a return air inlet pipe and a return air pipe, the air outlet pipes are arranged at the tops of the main greenhouses, an induced air fan and a plurality of air outlet holes are arranged on the air outlet pipes, and the roots of the air outlet pipes are communicated with the temperature regulating room through vertical induced air pipes; the air return inlet pipe is arranged in the main greenhouse and is far away from one end of the temperature adjusting chamber, the root part of the air return inlet pipe is communicated to the air return chamber through the underground laid air return pipe, and the wet curtain and the air conditioning coil pipe are arranged on the air outlet of the air return chamber.
Furthermore, the return air pipe comprises a first return air pipe, a heat insulation layer is wrapped outside the first return air pipe, and a first drainage pipe used for draining condensed water is arranged at the bottom of the first return air pipe.
Further, the return air duct still include with the parallelly connected second return air duct that sets up of first return air duct, the second return air duct is located first return air duct below and bury the degree of depth underground and be not less than two meters, the air inlet end of first return air duct is provided with first valve, second return air duct air inlet end is provided with the second valve, second return air duct bottom is provided with the second drain pipe that is used for discharging condensation ponding.
Further, the second return air duct specifically adopts a stainless steel tube or a galvanized steel tube, and the outer wall of the second return air duct is provided with radiating fins.
Furthermore, the outer side wall of the air return chamber adopts a heat-insulating wall body which serves as the side wall of the temperature adjusting chamber.
Furthermore, a skylight for introducing fresh air is arranged on the top wall of the temperature adjusting chamber, and an access door is arranged on the long side wall between the temperature adjusting chamber and the main greenhouse.
Further, still include exhaust pipe and heat pump room, the exhaust pipe buries ground the setting and is in return air import pipe root and with the return air pipe intercommunication, the air outlet setting of exhaust pipe is in the heat pump room, be provided with the air source heat pump in the heat pump room, the hot junction of air source heat pump communicates the air conditioner coil pipe.
Furthermore, an indoor shading curtain is arranged above the inside of the main greenhouse, and an outer shading curtain is arranged above the outside of the main greenhouse.
The invention also discloses a temperature control method of the circulating air temperature control greenhouse system, which is characterized in that the temperature of any circulating air temperature control greenhouse system is controlled, a temperature adjusting chamber is arranged on one side of the main greenhouse, return air is introduced into the temperature adjusting chamber through a circulating pipeline for temperature adjustment, and then the return air flows uniformly into the main greenhouse in a circulating mode.
Furthermore, partial exhaust air of the circulating flow is introduced into the cold end of the air source heat pump, and waste heat of waste gas is fully utilized.
Compared with the prior art, the invention has the beneficial technical effects that:
according to the circulating air temperature control greenhouse system, the temperature adjusting link can be led out of the main greenhouse by arranging the temperature adjusting chamber and the air return chamber on one side of the main greenhouse, so that the occupation of indoor cultivation space is reduced, and simultaneously, the phenomenon that local temperature is too high or too low is avoided, the air is uniformly and circularly distributed integrally, and the temperature is more uniform; the return air pipe is laid underground, so that the occupation of the cultivation space is avoided, the integrity of the ground in the greenhouse is not influenced, and the passage is facilitated; through the arrangement of the wet curtain and the air-conditioning coil, heat can be taken away or added conveniently. The circulating air temperature control greenhouse system can increase the uniform flowing circulation of the air in the greenhouse through the arrangement of the circulating pipeline, has good temperature controllability in the greenhouse and is beneficial to the cultivation and growth of flowers.
In addition, the heat-insulating layer is wrapped outside the first return air pipe, so that heat exchange between the return air and surrounding soil can be reduced when the return air passes through, and heat loss caused in cold seasons is avoided; through the setting of first drain pipe, the comdenstion water that the condensation formed when being convenient for discharge return air flows through avoids the pipe blockage. Through the arrangement of the second air return pipe, in hot summer, when the return air passes through the second air return pipe, heat can be transferred to surrounding soil and further dissipated to the ground, primary cooling is carried out, the return air returns to the air return chamber again and then secondary cooling is carried out through the wet curtain, the cooling effect is obvious, and refrigeration energy is saved; through the arrangement of the radiating fins, the radiating fins are fully contacted with the surrounding soil, the radiating area is increased, and the heat exchange effect is improved. The outer side wall of the air return chamber is provided with a heat-insulating wall body, so that the heat or cold loss is reduced conveniently, and the temperature control effect is ensured; through the setting in skylight, can introduce the new trend, the return air after new trend and temperature adjustment is at the indoor primary mixing of thermoregulation and mix once more in vertical induced duct, has avoided overheated or supercooled new trend to the temperature impact cultivated in a pot. Through the setting of exhaust pipe, in will need the partial return air of emission to introduce the heat pump room, improve air source heat pump cold junction ambient air temperature has improved air source heat pump's operating efficiency, discharges after the waste heat reuse, has improved energy utilization efficiency. Through the setting of interior window shade and outer window shade, in the weather that sunshine is flourishing, carry out dual sunshade, avoid main greenhouse to receive temperature rise after the sunshine radiation too fast, shelter from the highlight simultaneously to the burn cultivated in a pot.
The temperature control method of the circulating air temperature control greenhouse system ensures the temperature control precision and uniformity by a circulating air distribution mode and adjusting the return air temperature outside the main greenhouse; the hot return air is primarily cooled by the ground through the deeply buried return air pipe, so that the work load of water curtain cooling is reduced, and the energy is saved; the waste exhaust air is led out to the cold end of the air source heat pump, and the waste gas heat is discharged after being utilized, so that the energy is further saved.
Drawings
The invention is further illustrated in the following description with reference to the drawings.
FIG. 1 is a schematic top plan view of a circulating air temperature-controlled greenhouse system according to the present invention;
FIG. 2 is a schematic elevation view A-A of FIG. 1;
FIG. 3 is an enlarged view of the temperature-regulating chamber of the present invention.
Description of reference numerals: 1. a main greenhouse; 101. long side walls; 102. an access door; 2. adjusting the temperature in the room; 201. a skylight; 3. a heat pump room; 4. an air outlet pipe; 401. a vertical induced draft pipe; 402. air distribution holes; 403. a fan; 5. an air return inlet pipe; 501. a filter; 6. a first air return pipe; 601. a first drain pipe; 602. a first valve; 7. a second return air duct; 701. a second valve; 702. a fin; 703. a second drain pipe; 8. an air return chamber; 801. a heat-insulating wall body; 9. wet curtain; 10. an air conditioning duct; 11. an exhaust duct; 12. an indoor window shade; 13. an outer window shade; 14. a support; 15. and (6) potting.
Detailed Description
The core of the invention is to provide a circulating air temperature control greenhouse system and a temperature control method thereof, through the arrangement of a circulating pipeline, the uniform flowing circulation of the air in a greenhouse can be increased, the temperature controllability in the greenhouse is good, and the cultivation and growth of flowers are facilitated.
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying 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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to the drawings, FIG. 1 is a schematic top plan view of a circulating air temperature-controlled greenhouse system according to the present invention;
FIG. 2 is a schematic elevation view A-A of FIG. 1; FIG. 3 is an enlarged view of the temperature-regulating chamber of the present invention.
In a specific embodiment, as shown in fig. 1 to 3, the circulating air temperature control greenhouse system of the present invention includes a main greenhouse 1, a temperature adjusting chamber 2, an air return chamber 8, a wet curtain 9, an air conditioning coil 10, and a circulating pipeline. The main greenhouse 1 is a steel structure frame and is covered with an insulation board for sealing. A plurality of orderly arranged brackets 14 are arranged in the main greenhouse 1, and cultivated pots 15 are placed on the brackets 14. The temperature adjusting chamber 2 is arranged below the outer side of one long side wall body 101 of the main greenhouse 1, and the air return chamber 8 is arranged in the temperature adjusting chamber 2. The circulating pipeline comprises a plurality of groups of circulating units arranged in parallel, each circulating unit comprises an air outlet pipe 4, an air return inlet pipe 5 and an air return pipe, the air outlet pipe 4 is hung at the top of the main greenhouse 1, the air outlet pipe 4 is provided with a fan 403 for inducing air and a plurality of air distribution holes 402 for air outlet, and the air distribution holes 402 are uniformly distributed on the air outlet pipe 4. The root of the air outlet pipe 4 is communicated with the temperature adjusting room 2 through a vertical induced air pipe 401. The vertical setting of return air import pipe 5 just keeps away from temperature regulating room 2 one end in main greenhouse 1, and return air import pipe 5 top is provided with filter 501, and filter 501 filters the return air that gets into, avoid debris to enter into return air import pipe 5 with the return air pipe. The root of the return air inlet pipe 5 is communicated with a return air chamber 8 through an underground laid return air pipe, and a wet curtain 9 and an air-conditioning coil 10 are arranged on an air outlet of the return air chamber 8. The wet curtain 9 and the air conditioning coil 10 are arranged along the long side wall 101, the wet curtain 9 is used for cooling, and the air conditioning coil 10 is used for heating the passing air.
The temperature adjusting link can be led out of the main greenhouse 1 by arranging the temperature adjusting chamber 2 and the air return chamber 8 on one side of the main greenhouse 1, so that the occupation of indoor cultivation space is reduced, and simultaneously, the phenomenon that local temperature is too high or too low is avoided, the air is uniformly and circularly distributed integrally, and the temperature is more uniform; the return air pipe is laid underground, so that the occupation of the cultivation space is avoided, the integrity of the ground in the greenhouse is not influenced, and the passage is facilitated; the arrangement of the wet curtain 9 and the air conditioning coil 10 is convenient for taking away or adding heat. The circulating air temperature control greenhouse system can increase the uniform flowing circulation of the air in the greenhouse through the arrangement of the circulating pipeline, has good temperature controllability in the greenhouse and is beneficial to the cultivation and growth of flowers.
In a specific embodiment of the present invention, as shown in fig. 1 and fig. 2, the air return pipe includes a first air return pipe 6, and the first air return pipe 6 is wrapped with a thermal insulation layer, and the thermal insulation layer may be wrapped with a polyurethane foam thermal insulation layer or rock wool. The bottom of the first return air pipe 6 is provided with a first drainage pipe 601 for draining condensed water. The first drain pipe 601 connects the drain line to a drain.
The first air return pipe 6 is wrapped with the heat insulation layer, so that heat exchange between the air return pipe and surrounding soil can be reduced when the air return pipe passes through the heat insulation layer, and heat loss caused in cold seasons is avoided; through the setting of first drain pipe 601, the comdenstion water that the condensation formed when being convenient for discharge return air and flowing through avoids the pipe blockage.
In an embodiment of the present invention, as shown in fig. 2, the air return duct further includes a second air return duct 7 connected in parallel with the first air return duct 6, and the second air return duct 7 is located below the first air return duct 6 and has an embedding depth of not less than two meters. The air inlet end of the first air return pipe 6 is provided with a first valve 602, the air inlet end of the second air return pipe 7 is provided with a second valve 701, and the first valve 602 and the second valve 701 are both arranged in a valve well dug on the indoor ground. The bottom of the second return air pipe 7 is provided with a second drain pipe 703 for draining condensed water, and the second drain pipe 703 is connected with a drain pipeline to a drain.
Specifically, as shown in fig. 2, the second return duct 7 is made of a stainless steel pipe or a hot-dip galvanized steel pipe, and the outer wall of the second return duct 7 is provided with heat dissipating fins 702, so that the heat dissipating fins 702 are in full contact with the surrounding soil.
Through the arrangement of the second air return pipe 7, in hot summer, when the return air passes through the second air return pipe 7, heat can be transferred to surrounding soil and further dissipated to the ground, primary cooling is carried out, the return air returns to the air return chamber 8 again and then secondary cooling is carried out through the wet curtain 9, the cooling effect is obvious, and refrigeration energy is saved; through the arrangement of the radiating fins 702, the radiating fins 702 are fully contacted with the surrounding soil, the radiating area is increased, and the heat exchange effect is improved.
In an embodiment of the present invention, as shown in fig. 2 and 3, the outer side wall of the air return chamber 8 is a heat insulation wall 801, and the heat insulation wall 801 simultaneously serves as the side wall of the temperature adjusting chamber 2. The heat insulation wall 801 can be built by adopting heat insulation plate materials, and can also be formed by covering multiple layers of hollow glass or vacuum glass plates.
Specifically, as shown in fig. 3, a skylight 201 for introducing fresh air is provided on the ceiling wall of the temperature-controlled room 2, and an access door 102 is provided on the long-side wall 101 between the temperature-controlled room 2 and the main greenhouse 1.
The outer side wall of the air return chamber 8 is provided with a heat insulation wall 801, so that heat or cold loss is reduced conveniently, and the temperature control effect is ensured; through skylight 201's setting, can introduce the new trend, the new trend mixes in temperature adjustment room 2 preliminary mixing and mixes once more in vertical induced duct 401 with the return air after the temperature adjustment, has avoided overheated or supercooled new trend to the temperature impact of 15 cultivated in a pot.
In a specific embodiment of the present invention, as shown in fig. 1, the circulated air temperature-controlled greenhouse system of the present invention further includes an exhaust pipe 11 and a heat pump room 3, the exhaust pipe 11 is buried at the root of the return air inlet pipe 5 and is communicated with the return air pipe, an air outlet of the exhaust pipe 11 is arranged in the heat pump room 3, an air source heat pump is arranged in the heat pump room 3, and a hot end of the air source heat pump is communicated with the air conditioning coil 10.
Through the arrangement of the exhaust pipe 11, part of return air to be discharged is introduced into the heat pump room 3, the temperature of air around the cold end of the air source heat pump is increased, the operating efficiency of the air source heat pump is improved, the waste heat is discharged after being recycled, and the energy utilization efficiency is improved.
In one embodiment of the present invention, as shown in fig. 2, an indoor window shade 12 is disposed above the interior of the main greenhouse 1, and the indoor window shade 12 is located above the air outlet pipe 4; an outer window blind 13 is arranged above the outside of the main greenhouse 1.
Through the setting of interior window shade 12 and outer window shade 13, in the weather that sunshine is flourishing, carry out dual sunshade, avoid main greenhouse 1 to receive the temperature rise after the sunshine radiation too fast, shelter from the burn of highlight to 15 cultivated in a pot simultaneously.
The invention also discloses a temperature control method of the circulating air temperature control greenhouse system, which is characterized in that the circulating air temperature control greenhouse system in any embodiment is utilized for temperature control, a temperature adjusting chamber is arranged on one side of the main greenhouse, return air is introduced into the temperature adjusting chamber through a circulating pipeline for temperature adjustment, and then the return air flows uniformly into the main greenhouse in a circulating mode.
Specifically, partial exhaust air of the circulating flow is introduced to the cold end of the air source heat pump, and waste heat of waste gas is fully utilized. Through the return air pipe that buries deeply, carry out the heat exchange cooling with soil around when passing back air pipe, improved the cooling effect.
The return air temperature is adjusted outside the main greenhouse in a circulating air distribution mode, so that the temperature control precision and uniformity are ensured; the hot return air is primarily cooled by the ground through the deeply buried return air pipe, so that the work load of water curtain cooling is reduced, and the energy is saved; the waste exhaust air is led out to the cold end of the air source heat pump, and the waste gas heat is discharged after being utilized, so that the energy is further saved.
According to the circulating air temperature control greenhouse system, the temperature adjusting link can be led out of the main greenhouse 1 by arranging the temperature adjusting chamber 2 and the air return chamber 8 on one side of the main greenhouse 1, so that the occupation of indoor cultivation space is reduced, the phenomenon that local temperature is too high or too low is avoided, the air is uniformly and circularly distributed integrally, and the temperature is more uniform; the return air pipe is laid underground, so that the occupation of the cultivation space is avoided, the integrity of the ground in the greenhouse is not influenced, and the passage is facilitated; the arrangement of the wet curtain 9 and the air conditioning coil 10 is convenient for taking away or adding heat. The circulating air temperature control greenhouse system can increase the uniform flowing circulation of the air in the greenhouse through the arrangement of the circulating pipeline, has good temperature controllability in the greenhouse and is beneficial to the cultivation and growth of flowers. In addition, the first air return pipe 6 is wrapped with the heat insulation layer, so that heat exchange between the air return pipe and surrounding soil can be reduced when the air return pipe passes through, and heat loss caused in cold seasons is avoided; through the setting of first drain pipe 601, the comdenstion water that the condensation formed when being convenient for discharge return air and flowing through avoids the pipe blockage. Through the arrangement of the second air return pipe 7, in hot summer, when the return air passes through the second air return pipe 7, heat can be transferred to surrounding soil and further dissipated to the ground, primary cooling is carried out, the return air returns to the air return chamber 8 again and then secondary cooling is carried out through the wet curtain 9, the cooling effect is obvious, and refrigeration energy is saved; through the arrangement of the radiating fins 702, the radiating fins 702 are fully contacted with the surrounding soil, the radiating area is increased, and the heat exchange effect is improved. The outer side wall of the air return chamber 8 is provided with a heat insulation wall 801, so that heat or cold loss is reduced conveniently, and the temperature control effect is ensured; through skylight 201's setting, can introduce the new trend, the new trend mixes in temperature adjustment room 2 preliminary mixing and mixes once more in vertical induced duct 401 with the return air after the temperature adjustment, has avoided overheated or supercooled new trend to the temperature impact of 15 cultivated in a pot. Through the arrangement of the exhaust pipe 11, part of return air to be discharged is introduced into the heat pump room 3, the temperature of air around the cold end of the air source heat pump is increased, the operating efficiency of the air source heat pump is improved, the waste heat is discharged after being recycled, and the energy utilization efficiency is improved. Through the setting of interior window shade 12 and outer window shade 13, in the weather that sunshine is flourishing, carry out dual sunshade, avoid main greenhouse 1 to receive the temperature rise after the sunshine radiation too fast, shelter from the burn of highlight to 15 cultivated in a pot simultaneously.
The temperature control method of the circulating air temperature control greenhouse system ensures the temperature control precision and uniformity by a circulating air distribution mode and adjusting the return air temperature outside the main greenhouse; the hot return air is primarily cooled by the ground through the deeply buried return air pipe, so that the work load of water curtain cooling is reduced, and the energy is saved; the waste exhaust air is led out to the cold end of the air source heat pump, and the waste gas heat is discharged after being utilized, so that the energy is further saved.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solution of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the scope of the present invention is defined by the claims.
Claims (10)
1. A circulating air temperature control greenhouse system is characterized by comprising: the greenhouse comprises a main greenhouse (1), a temperature regulating greenhouse (2), an air return chamber (8), a wet curtain (9), an air conditioning coil pipe (10) and a circulating pipeline, wherein a support (14) for placing a potted plant (15) is arranged in the main greenhouse (1), the temperature regulating greenhouse (2) is arranged below the outer side of a long side wall body (101) of the main greenhouse (1), and the air return chamber (8) is arranged in the temperature regulating greenhouse (2); the circulating pipeline comprises a plurality of groups of circulating units which are arranged in parallel, each circulating unit comprises an air outlet pipe (4), a return air inlet pipe (5) and a return air pipe, the air outlet pipes (4) are arranged at the top of the main greenhouse (1), an induced air fan (403) and a plurality of air outlet holes (402) are arranged on the air outlet pipes (4), and the roots of the air outlet pipes (4) are communicated with the temperature adjusting chamber (2) through vertical induced air pipes (401); the air return inlet pipe (5) is arranged in the main greenhouse (1) and is far away from one end of the temperature adjusting chamber (2), the root of the air return inlet pipe (5) is communicated to the air return chamber (8) through the air return pipe laid underground, and the wet curtain (9) and the air conditioning coil (10) are arranged on the air outlet of the air return chamber (8).
2. The circulating air temperature-controlled greenhouse system according to claim 1, wherein: the return air pipe comprises a first return air pipe (6), a heat insulation layer is wrapped outside the first return air pipe (6), and a first drainage pipe (601) used for draining condensed water is arranged at the bottom of the first return air pipe (6).
3. The circulating air temperature-controlled greenhouse system according to claim 2, wherein: the return air duct still include with second return air duct (7) that first return air duct (6) parallelly connected set up, second return air duct (7) are located first return air duct (6) below and bury the degree of depth underground and be not less than two meters, the air inlet end of first return air duct (6) is provided with first valve (602), second return air duct (7) air inlet end is provided with second valve (701), second return air duct (7) bottom is provided with second drain pipe (703) that are used for discharging condensation ponding.
4. The circulating air temperature-controlled greenhouse system according to claim 3, wherein: the second air return pipe (7) is made of stainless steel pipes or galvanized steel pipes, and heat radiating fins (702) are arranged on the outer wall of the second air return pipe (7).
5. The circulating air temperature-controlled greenhouse system according to claim 1, wherein: the outer side wall of the air return chamber (8) is made of a heat insulation wall body (801), and the heat insulation wall body (801) serves as the side wall of the temperature adjusting chamber (2) at the same time.
6. The circulating air temperature-controlled greenhouse system according to claim 5, wherein: a skylight (201) for introducing fresh air is arranged on the top wall of the temperature adjusting chamber (2), and an access door (102) is arranged on the long side wall body (101) between the temperature adjusting chamber (2) and the main greenhouse (1).
7. The circulating air temperature-controlled greenhouse system according to claim 1, wherein: still include exhaust pipe (11) and heat pump room (3), exhaust pipe (11) bury ground and set up return air import pipe (5) root and with the return air pipe intercommunication, the air outlet setting of exhaust pipe (11) is in heat pump room (3), be provided with the air source heat pump in heat pump room (3), the hot junction of air source heat pump communicates air conditioner coil pipe (10).
8. The circulating air temperature-controlling greenhouse system according to any one of claims 1 to 7, wherein: an indoor shading curtain (12) is arranged above the inside of the main greenhouse (1), and an outer shading curtain (13) is arranged above the outside of the main greenhouse (1).
9. A temperature control method of a circulating air temperature control greenhouse system is characterized in that the circulating air temperature control greenhouse system of any one of claims 1 to 8 is used for temperature control, a temperature adjusting chamber is arranged on one side of a main greenhouse, return air is introduced into the temperature adjusting chamber through a circulating pipeline for temperature adjustment, and then the return air flows uniformly into the main greenhouse in a circulating mode.
10. The temperature control method of the circulating air temperature control greenhouse system according to claim 9, wherein part of the exhaust air of the circulating flow is introduced into the cold end of the air source heat pump, and the waste heat of the exhaust gas is fully utilized.
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