CN211745757U - Sunlight greenhouse soil temperature regulation and control equipment based on air source utilization system - Google Patents
Sunlight greenhouse soil temperature regulation and control equipment based on air source utilization system Download PDFInfo
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- CN211745757U CN211745757U CN202020201003.2U CN202020201003U CN211745757U CN 211745757 U CN211745757 U CN 211745757U CN 202020201003 U CN202020201003 U CN 202020201003U CN 211745757 U CN211745757 U CN 211745757U
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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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- 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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Abstract
The utility model discloses a sunlight greenhouse soil temperature regulation and control device based on an air source utilization system, which belongs to the field of gardening; the first water reservoir, the submersible pump, the inlet of the active heat collecting device and the outlet of the active heat collecting device are connected with the first water reservoir in sequence to form a loop, the second water reservoir, the submersible pump and the heat pump are connected with the second water reservoir in sequence to form a loop, and the first water reservoir, the submersible pump, the heat pump and the first water reservoir are connected in sequence to form a loop; the heating branch pipes are laid under soil ridges in the sunlight greenhouse, and the heat storage pipelines are laid in the deep soil in the sunlight greenhouse. The utility model discloses utilize the heat pump to reduce cistern temperature No. one, promote No. two cistern temperatures, solved single retaining cell body sum and stored heat volume and received restriction and thermal-arrest process temperature and rise, the water-gas temperature difference reduces, problem that collecting efficiency is low. And pipelines buried in the deep soil layer and under the soil ridge are used as a heat storage device and a heating device, and the soil temperature at night is maintained in a proper range through hot water circulation.
Description
Technical Field
The utility model belongs to the technical field of the horticulture, specifically be a sunlight greenhouse soil temperature regulation and control equipment based on air source utilizes system.
Background
Heating the greenhouse at night is an important means for meeting the overwintering production of crops in the greenhouse.
The growth and development of crops are influenced by the air temperature and have a great relationship with the ground temperature, and the ground temperature is heated in an initial stage by mainly adopting electric heating modes such as a heating cable, a carbon crystal panel and the like, so that the energy utilization rate is low.
In recent years, with the development of energy-saving sunlight greenhouses, the active heat collection technology of the greenhouse has been one of the important contents of the research of scholars at home and abroad. The active heat collection technology takes solar energy as a heat source in the daytime, heat energy is stored by using a medium, the heat stored in the medium is released to a greenhouse at night for warming the greenhouse, and mechanical equipment is used for providing power in the process. In order to improve the energy utilization rate, at present, an active heat collecting system and soil heating are combined for heating greenhouse soil, and the requirement at night is difficult to meet only by the heat collected by the active heat collecting system in the daytime and the continuous cloudy day is difficult to pass due to the limited heat storage capacity of water. The heat pump is a device which can obtain low-grade heat energy from air, water or soil in the nature and provide high-grade heat energy which can be utilized by people through electric work, and an active heat collecting system is used as a heat source of the heat pump to improve medium heat energy and is used for maintaining the temperature in the greenhouse at night. The soil is deep and stable in temperature, and can be used for storing heat, and the stored heat can be used for resisting extreme weather or cloudy days.
SUMMERY OF THE UTILITY MODEL
To the limited problem of initiative heating system thermal-arrest volume, the utility model provides a sunlight greenhouse soil temperature regulation and control equipment based on air source utilizes system, a serial communication port, include: the solar greenhouse comprises at least one active heat collecting device, a first water storage tank, a second water storage tank, a heat pump, a heating branch pipe and a heat storage pipeline, wherein the first water storage tank, a submersible pump, an inlet of the active heat collecting device and an outlet of the active heat collecting device are arranged in a sunlight greenhouse and are sequentially connected with the first water storage tank to form a loop;
the heating branch pipes are laid under soil ridges in the sunlight greenhouse, the heat storage pipeline is laid in the deep soil in the sunlight greenhouse, and the heating branch pipes and the inlet and outlet of the heat storage pipeline are connected with the second water storage tank through valves.
The water storage capacity of the first water storage tank is smaller than that of the second water storage tank.
The active heat collecting device is a fan coil.
The heat pump includes: the system comprises an evaporator, a compressor, an expansion valve and a condenser, wherein a cold water outlet of the condenser, the expansion valve, a cold water inlet of the evaporator, a hot water outlet of the evaporator, the compressor and a hot water inlet of the condenser are sequentially connected to form a loop, and the cold water inlet and the hot water outlet of the condenser are respectively a downstream inlet and a downstream outlet of a heat pump; the upstream outlet and the upstream inlet of the evaporator are respectively a cold water outlet and a hot water inlet of the heat pump.
The heating branch pipes are parallel to the cultivation ridges in the sunlight greenhouse.
The distance between the heat storage pipeline and the ground is 50-80 cm.
The beneficial effects of the utility model reside in that:
1. a fan coil is used as an active heat collecting device to collect the air waste heat of the sunlight greenhouse; a heat pump is used as a means for improving heat; the air waste heat in the sunlight greenhouse in the daytime is collected through water circulation and stored in the first water storage tank, the water temperature of the first water storage tank is reduced by using the heat pump, and the water temperature of the second water storage tank is improved, so that the problem that the single water storage tank volume and the heat storage volume are limited because the water storage tank is arranged in the sunlight greenhouse is solved; and the temperature difference of water and gas is reduced in the heat collection process, and the heat collection efficiency is reduced.
2. Water is used as a heat collecting and releasing medium, pipelines buried in deep soil layers and under soil ridges are respectively used as a heat storage device and a heating device, the soil temperature at night is maintained in a proper range through hot water circulation, and part of hot water is stored in the deep pipeline.
3. The heat energy in the using process is supplied by the air waste heat of the sunlight greenhouse, and a low-carbon pollution-free heating mode is provided.
4. The heat source and the heat sink are respectively water in the first reservoir and the second reservoir, the water temperature of the first reservoir is reduced by adopting the heat pump, the water temperature of the first reservoir is increased, and the heat collection quantity of the active heat collection device is increased by providing the water temperature difference.
5. The circulating pipeline is used for heating soil, the heating is uniform, and compared with heat collection air, the effectiveness of heat utilization is improved.
6. The buried pipeline with the depth of 50 cm-80 cm is used for storing heat, and the characteristic of stable soil temperature with the depth of more than 50cm is used for storing heat for resisting extreme weather or continuous cloudy days.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a sunlight greenhouse soil temperature control device based on an air source utilization system according to the present invention;
FIG. 2 is a heat collecting flow chart of the active heat collecting system according to the embodiment of the present invention;
FIG. 3 is a flow chart of the operation of the heat pump according to the embodiment of the present invention;
FIG. 4 is a flow chart of soil heat storage in an embodiment of the present invention;
fig. 5 is a flow chart of soil heating in the embodiment of the present invention.
Wherein: the solar heat collector comprises a heat collecting device 1, an active heat collecting device 2, a heat collecting water supply pipe 3, a heat collecting water return pipe 4, a water storage tank 5, a water storage tank II, a heat pump 6, an evaporator 7, a compressor 8, an expansion valve 9, a condenser 10, a heating water supply pipe 11, a heating branch pipe 12, a valve 13, a heating water return pipe 14, a heat storage pipeline 15, a cement platform 16, a sunlight greenhouse 17 and a submersible pump 18.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The embodiment of the present invention shown in fig. 1 comprises: the solar greenhouse comprises at least one active heat collecting device 1, a first water storage tank 4, a second water storage tank 5, a heat pump 6, a warming branch pipe 12 and a heat storage pipeline 15, wherein the first water storage tank 4, a valve 13, a submersible pump 18, an inlet of the active heat collecting device 1 and an outlet of the active heat collecting device 1 are arranged in the solar greenhouse 17 and are sequentially connected with the first water storage tank 4 to form a loop, a heat pump 6 for heat exchange is arranged on the ground and is positioned between the first water storage tank 4 and the second water storage tank 5, the submersible pump 18, a downstream inlet of the heat pump 6 and a downstream outlet of the heat pump 6 are sequentially connected with the second water storage tank 5 to form a loop, and the first water storage tank 4, the submersible pump 18, an upstream inlet of the heat pump 6 and an upstream outlet of the heat pump 6 are sequentially connected with the first;
the heating branch pipes 12 are laid under soil ridges in the sunlight greenhouse 17, the heat storage pipelines 15 are laid deep in the soil in the sunlight greenhouse 17, and the inlet and outlet of the heating branch pipes 12 and the inlet and outlet of the heat storage pipelines 15 are connected with the second water reservoir 5 through valves 13; by utilizing the characteristic of heat release of the land, the water storage tank 5 II and two sets of pipelines (the heating branch pipe 12 and the heat storage pipeline 15) buried under the land form a more stable night underground double-loop temperature circulating heat recovery and release system.
In the embodiment, the first water reservoir 4 is a water reservoir for heat transfer and is not used for releasing heat energy at night, so that the water storage capacity of the first water reservoir 4 is smaller than that of the second water reservoir 5;
in the embodiment, the first water reservoir 4 and the second water reservoir 5 are both buried underground and are subjected to heat preservation, heat insulation and waterproof treatment;
in the embodiment, three active heat collecting devices 1 connected in parallel are hung on a roof truss of a sunlight greenhouse 17;
in this embodiment, the active heat collecting device 1 is a fan coil, the active heat collecting device 1 is connected with the first water storage tank 4 through the heat collecting water supply pipe 2 and the heat collecting water return pipe 3, water in the first water storage tank 4 is guided to the active heat collecting device 1 through a pipeline provided with a submersible pump, and the water is guided back to the first water storage tank 4 from the active heat collecting device 1.
The heat pump 6 shown in fig. 1 and 2 is installed above a cement stand 16 in a solar greenhouse 17, and the heat pump 6 includes: the system comprises an evaporator 7, a compressor 8, an expansion valve 9 and a condenser 10, wherein a cold water inlet and a hot water outlet of the condenser 10 are connected with a water reservoir II 5, and the cold water inlet and the hot water outlet of the condenser 10 are respectively a downstream inlet and a downstream outlet of a heat pump 6; the cold water outlet and the hot water inlet of the evaporator 7 are both connected with the first water storage tank 4, the upstream outlet and the upstream inlet of the evaporator 7 are respectively the cold water outlet and the hot water inlet of the heat pump 6, and the cold water outlet of the condenser 10, the expansion valve 9, the cold water inlet of the evaporator 7, the hot water outlet of the evaporator 7, the compressor 8 and the hot water inlet of the condenser 10 are sequentially connected to form a loop.
The warming branch pipe 12, the outlet of the second water reservoir 5, the valve 13, the warming water supply pipe 11, the warming branch pipe 12, the valve 13, the warming water return pipe 14 and the inlet of the second water reservoir 5 shown in fig. 1 and 5 are connected to form a loop; the warming branch pipes 12 are laid under the soil ridges and are parallel to the cultivation ridges,
in this embodiment, the warming branch pipe 12, the warming water supply pipe 11 and the warming water return pipe 14 are all PVC pipes.
As shown in fig. 1 and fig. 4, the heat storage pipeline 15 is connected with the first water reservoir 4 through a valve 13, the heat storage pipeline 15 is laid at a position 50-80 cm away from the ground, and a water inlet and a water outlet are respectively provided with a valve 13;
in the present embodiment, the heat storage pipe 15 is a metal galvanized pipe.
The method of use of this example is as follows:
as shown in step 1 of fig. 2, during the day, when the temperature in the sunlight greenhouse 17 is higher than 20 ℃, opening the submersible pump 18 and the valve 13 on the pipeline of the active heat collecting device, guiding water from the first water reservoir 4 into the pipeline of the active heat collecting device 1, starting the active heat collecting device 1 to form a heat collecting loop of 'first water reservoir-active heat collecting device-first water reservoir', the submersible pump 18 in the heat collecting loop of 'first water reservoir-active heat collecting device-first water reservoir' guiding water in the first water reservoir 4 into the active heat collecting device 1, absorbing the waste heat in the air and then raising the temperature, and returning the water from the active heat collecting device 1 to the first water reservoir 4 for repeated circulation and continuous heat collection;
as shown in step 2 of fig. 3, the water temperature in the first reservoir continuously rises, the temperature difference between the water temperature and the indoor air temperature gradually decreases to 5 ℃, valves 13 connected with the first reservoir 4, the second reservoir 6 and the heat pump 6 are respectively opened, then the heat pump 6 and the submersible pumps 18 are opened, and an evaporative refrigeration loop of the first reservoir-the heat pump (evaporator) -the first reservoir "and a condensation refrigeration loop of the second reservoir-the heat pump (condenser) -the second reservoir" are respectively formed, at this time, in the evaporative refrigeration loop of the first reservoir-the heat pump (evaporator) -the first reservoir ", the submersible pumps 18 guide the water in the first reservoir 4 into the heat pump 6, and guide the water to the first reservoir after the water temperature is reduced by the evaporator 7 of the heat pump 6; meanwhile, in an evaporation refrigeration loop of the 'second water storage tank-heat pump (condenser) — the second water storage tank', the submersible pump 18 guides water in the second water storage tank 5 into the heat pump 6, the water temperature is increased through the condenser 10 of the heat pump 6 and then guided back to the second water storage tank 5, so that the purpose of pumping heat energy of the first water storage tank 4 to the second water storage tank 5, reducing the water temperature of the first water storage tank 4 and increasing the water temperature in the second water storage tank 5 is realized, the water temperature difference between the first water storage tank and air is kept, and heat collection is facilitated.
In the step, water in the shallow warming branch pipe 12 comes from the water reservoir No. two 5 and is used for warming soil temperature; the water in the heat storage pipeline 15 has the effect of controlling and improving the temperature of the second water reservoir, specifically, the deep heat storage pipeline 15 is used for storing heat, the heat stored in the heat storage pipeline 15 is under the condition that the heat of the second water reservoir is insufficient, the water in the heat storage pipeline 15 is led into the second water reservoir to increase the heat, and then the heat is released through the heating branch pipe 12;
as shown in step 3 of fig. 4, after the heat preservation above the sunlight greenhouse 17 is closed, the submersible pump 18 and the valve 13 on the pipeline of the active heat collecting device 1 are closed, and the active heat collecting device 1 is closed at the same time, at this time, the heat pump 6 is still in an open state; when the water temperature in the first water reservoir 4 is lower than the water temperature in the second water reservoir 5, a valve 13 and a submersible pump 18 which are used for guiding the first water reservoir 4 and the second water reservoir 5 into a heat pump 6 pipeline are respectively closed, a valve which is used for guiding water from the second water reservoir 5 into a heat storage pipeline 15 is opened, soil heat storage is carried out until the water temperature in the heat storage pipeline 15 is equal to the water temperature in the second water reservoir, and the valve which is used for guiding water from the second water reservoir 5 into the heat storage pipeline 15 is closed;
in step 4 shown in fig. 5, at night, the temperature in the sunlight greenhouse is lower than a certain temperature of 10 ℃, a valve 13 on a heating water supply pipe 11 and a heating water return pipe 14 near a heating pipeline 12 is opened, a submersible pump 18 on the heating water supply pipe 11 is operated, a heat release loop of 'No. two water reservoirs, namely a soil heating circulating pipeline and No. two water reservoirs' is formed, the submersible pump 18 in the heat release loop of 'No. two water reservoirs, namely the soil heating circulating pipeline and No. two water reservoirs' leads water from the No. two water reservoirs 5 to the heating water supply pipe 11, the water exchanges heat with soil through a heating branch pipe 12, the water flows back to the No. two water reservoirs 5 through the heating water return pipe 14 and is circulated repeatedly, the water enters a.
And 5, opening a valve of a heat storage pipeline 15 when the indoor temperature is lower than 10 ℃ and the water temperature in the second water storage tank 5 is lower than 12 ℃, introducing the water in the second water storage tank 5 into a valve 13 of the heat storage pipeline and a submersible pump 18, enabling the water stored in the pipeline to flow into the second water storage tank 5, increasing the water temperature in the second water storage tank 5, and then continuing the soil heating process through a heating pipeline 12.
The above embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the scope of the present invention.
Claims (6)
1. A sunlight greenhouse soil temperature regulation and control equipment based on air source utilization system, its characterized in that includes: at least one active heat collecting device (1) suspended on a roof truss of a sunlight greenhouse (17) and a first water storage tank (4), a second water storage tank (5), a heat pump (6), a heating branch pipe (12) and a heat storage pipeline (15) arranged in the sunlight greenhouse (17), wherein the first water storage tank (4), a submersible pump (18), an inlet of the active heat collecting device (1), an outlet of the active heat collecting device (1) are connected with the first water storage tank (4) in sequence to form a loop, a heat pump (6) for heat exchange is arranged on the ground and is positioned between the first water storage tank (4) and the second water storage tank (5), the submersible pump (18), a downstream inlet of the heat pump (6), a downstream outlet of the heat pump (6) and the second water storage tank (5) are connected in sequence to form a loop, and the first water storage tank (4), the submersible pump (18) and an upstream inlet of the heat, An upstream outlet of the heat pump (6) is sequentially connected with the first water storage tank (4) to form a loop;
the heating branch pipes (12) are laid under soil ridges in the sunlight greenhouse (17), the heat storage pipelines (15) are laid deep in soil in the sunlight greenhouse (17), and the inlet and outlet of the heating branch pipes (12) and the inlet and outlet of the heat storage pipelines (15) are connected with the second water storage tank (5) through valves (13).
2. The sunlight greenhouse soil temperature control apparatus based on air source utilization system as claimed in claim 1, wherein the water storage capacity of the first water reservoir (4) is less than that of the second water reservoir (5).
3. The sunlight greenhouse soil temperature control equipment based on air source utilization system of claim 1, characterized in that the active heat collecting device (1) is a fan coil.
4. The sunlight greenhouse soil temperature control apparatus based on air source utilization system as claimed in claim 1, wherein the heat pump (6) comprises: the heat pump system comprises an evaporator (7), a compressor (8), an expansion valve (9) and a condenser (10), wherein a cold water outlet of the condenser (10), the expansion valve (9), a cold water inlet of the evaporator (7), a hot water outlet of the evaporator (7), the compressor (8) and a hot water inlet of the condenser (10) are sequentially connected to form a loop, and the cold water inlet and the hot water outlet of the condenser (10) are respectively a downstream inlet and a downstream outlet of a heat pump (6); the upstream outlet and the upstream inlet of the evaporator (7) are respectively a cold water outlet and a hot water inlet of the heat pump (6).
5. The sunlight greenhouse soil temperature control apparatus based on air source utilization system as claimed in claim 1, wherein the warming branch pipe (12) is parallel to the cultivation ridge in the sunlight greenhouse (17).
6. The sunlight greenhouse soil temperature control apparatus based on air source utilization system as claimed in claim 1, wherein the heat storage pipeline (15) is 50-80 cm from the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020201003.2U CN211745757U (en) | 2020-02-24 | 2020-02-24 | Sunlight greenhouse soil temperature regulation and control equipment based on air source utilization system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020201003.2U CN211745757U (en) | 2020-02-24 | 2020-02-24 | Sunlight greenhouse soil temperature regulation and control equipment based on air source utilization system |
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| CN211745757U true CN211745757U (en) | 2020-10-27 |
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| CN202020201003.2U Expired - Fee Related CN211745757U (en) | 2020-02-24 | 2020-02-24 | Sunlight greenhouse soil temperature regulation and control equipment based on air source utilization system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115428680A (en) * | 2022-08-31 | 2022-12-06 | 云南旭滇农业技术有限公司 | Double-effect solar greenhouse with water-air film heat exchange coupled with air energy and environment control method |
-
2020
- 2020-02-24 CN CN202020201003.2U patent/CN211745757U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115428680A (en) * | 2022-08-31 | 2022-12-06 | 云南旭滇农业技术有限公司 | Double-effect solar greenhouse with water-air film heat exchange coupled with air energy and environment control method |
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Granted publication date: 20201027 Termination date: 20210224 |