CN111373962A - Seed culture greenhouse temperature adjusting device and adjusting method - Google Patents
Seed culture greenhouse temperature adjusting device and adjusting method Download PDFInfo
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- CN111373962A CN111373962A CN202010310019.1A CN202010310019A CN111373962A CN 111373962 A CN111373962 A CN 111373962A CN 202010310019 A CN202010310019 A CN 202010310019A CN 111373962 A CN111373962 A CN 111373962A
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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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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K1/00—Housing animals; Equipment therefor
- A01K1/0047—Air-conditioning, e.g. ventilation, of animal housings
- A01K1/0076—Arrangement of heaters or heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
- F24F2005/0064—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground using solar energy
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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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
- Y02P60/12—Technologies relating to agriculture, livestock or agroalimentary industries using renewable energies, e.g. solar water pumping
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/50—Livestock or poultry management
- Y02P60/52—Livestock or poultry management use of renewable energies
Abstract
The device comprises an inverter, a solar photovoltaic panel, a rechargeable battery and an air source heat pump, wherein the inverter is electrically connected with the solar photovoltaic panel to convert the direct current electric energy into alternating current electric energy, the inverter transmits the alternating current electric energy to the rechargeable battery and the air source heat pump, the air source heat pump comprises a compressor, an expansion valve connected with the compressor, a condenser generating heat energy and an evaporator connected with the expansion valve, the air source heat pump is connected with the inverter and the rechargeable battery, a secondary heat transmitter is communicated with the primary heat transmitter, a slit formed by adjacent spiral coils is constructed into an air passage, high-temperature steam is contacted with the primary heat exchanger and the secondary heat exchanger through the air passage to exchange heat, a plurality of heating pipelines are distributed in the breeding greenhouse to heat, and the; in response to the temperature data deviating from a predetermined temperature, the control unit controls the plurality of solar heat collecting units and the air source heat pump to heat, and the heating pipeline heats the seed culture greenhouse to reach the predetermined temperature.
Description
Technical Field
The invention relates to the technical field of cultivation greenhouse temperature control, in particular to a device and a method for adjusting cultivation greenhouse temperature.
Background
The agricultural seed culture greenhouse needs heating and cooling measures to ensure the production and growth needs of crops or livestock, and the boiler is adopted for heating, so that the energy consumption is high and the pollution is serious; the common air conditioner is adopted for heating and cooling, the power consumption is higher during heating, the outdoor unit is frozen in the north by adopting the air conditioner for heating, the energy efficiency ratio is greatly reduced, and the heating cost is increased.
The air source heat pump utilizes a small amount of high-grade electric energy as driving energy, and the heat energy contained in the air from the low-temperature heat source and the air efficiently absorbs the low-grade heat energy and transmits the low-grade heat energy to the high-temperature heat source, such as water in a water tank, so that the purpose of pumping heat is achieved. The heat released into the water by the heat pump water heater is not generated by direct electric heating, but is transferred into the water by the heat pump water heater, so the average energy efficiency ratio can reach more than 400%. That is, a 1 degree electric pass through the heat pump can produce a 4 degree electric effect. However, the air source heat pump has a drawback that it has a low heat exchange efficiency in winter.
The above information disclosed in this background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is well known to those of ordinary skill in the art.
Disclosure of Invention
In view of the above problems, the present invention provides a temperature adjustment device and method for cultivation greenhouses to overcome the above disadvantages of the prior art. The purpose of the invention is realized by the following technical scheme.
A temperature adjusting device for a breeding greenhouse comprises,
a photovoltaic unit configured to convert light energy into electrical energy comprising,
a solar photovoltaic panel disposed outside the seed culture greenhouse to convert received light energy into direct current electrical energy,
an inverter electrically connected to the solar photovoltaic panel to convert the DC power into AC power, the inverter transferring the AC power to the rechargeable battery and the air source heat pump,
a rechargeable battery connected to the inverter to store the alternating current power;
an air source heat pump including a compressor, an expansion valve connected to the compressor, a condenser generating heat energy, and an evaporator connected to the expansion valve, the air source heat pump being connected to the inverter and the rechargeable battery, wherein the condenser includes,
a steam passage through which high-temperature steam from the evaporator passes,
a primary heat exchanger comprising a helical coil disposed around the vapor channel,
a secondary heat exchanger including spiral coils arranged around the primary heat exchanger, the secondary heat exchanger communicating with the primary heat exchanger, slits formed by adjacent spiral coils being configured as air passages through which the high-temperature steam contacts the primary heat exchanger and the secondary heat exchanger for heat exchange,
a plurality of heating pipelines which are distributed in the seed culture greenhouse for heating, and the plurality of heating pipelines are communicated with the secondary heat transmitter;
a plurality of solar heat collecting units which comprise solar panels and water flow pipes, wherein the solar panels are arranged at the top of the breeding greenhouse at intervals and used for converting solar energy into heat energy, and the water flow pipes are used for conveying the heat energy and communicated with the heating pipelines;
the temperature sensor is arranged in the seed culture greenhouse to measure temperature data;
a control unit connected to the temperature sensor, the plurality of solar heat collecting units and the air source heat pump,
in response to the temperature data deviating from a predetermined temperature, the control unit controls the plurality of solar heat collecting units and the air source heat pump to heat, and the heating pipeline heats the seed culture greenhouse to reach the predetermined temperature.
In the temperature adjusting device for the seed culture greenhouse, the primary heat transmitter comprises a first layer surrounding the steam channel and a second layer surrounding the first layer, one end of the second layer is communicated with the first layer, and the other end of the second layer is communicated with the secondary heat transmitter.
In the temperature adjusting device for the seed culture greenhouse, a plurality of solar heat collecting units are arranged in a first area at the top of the seed culture greenhouse at equal intervals, and the first area is located in a non-direct solar radiation area of a seed culture object.
In the seed culture greenhouse temperature adjusting device, the spiral coils which are adjacent in the transverse direction and the fins which surround the spiral coils form slits to form air passages.
In the temperature adjusting device for the seed culture greenhouse, a plurality of heating pipelines and seed culture objects are distributed on the ground of the seed culture greenhouse at intervals.
In the temperature adjusting device for the seed and culture greenhouse, the solar photovoltaic panels are supported outside the seed and culture greenhouse through the bracket and are connected in series and parallel.
Among the kind of breed greenhouse temperature regulation apparatus, the heliciform coil pipe is equipped with the fin, and the heliciform coil pipe of clockwise rotation is based on circular helix and produces as the ridge line.
In the temperature adjusting device for the seed culture greenhouse, the air source heat pump comprises a heat pump air injection enthalpy-increasing heat pump.
In the temperature adjusting device for the breeding greenhouse, when the photovoltaic unit does not generate electric energy, the rechargeable battery and/or the power grid supply power to the air source heat pump, and the rechargeable battery comprises a silicon energy rechargeable battery.
In the temperature adjusting device for the seed culture greenhouse, the area of a heat exchange part of an evaporator of an outdoor unit is increased in an air source heat pump.
In the temperature adjusting device for the seed culture greenhouse, the air pressure and the air quantity of partial fans of the indoor unit are increased in the air source heat pump, so that the air circulation and the heating and cooling air quantity are increased in the greenhouse.
In the device for regulating the temperature of the seed culture greenhouse, the inverter is a grid-connected photovoltaic control and inversion integrated machine.
According to another aspect of the invention, the adjusting method of the seed culture greenhouse temperature adjusting device comprises the following steps,
the solar photovoltaic panel converts the received light energy into direct current electric energy, the inverter transmits the alternating current electric energy to the rechargeable battery and the air source heat pump,
the temperature sensor measures the temperature data in the breeding greenhouse;
in response to the temperature data deviating from a predetermined temperature, the control unit controls the plurality of solar heat collecting units and the air source heat pump to heat, high-temperature steam from the condenser contacts the primary heat exchanger and the secondary heat exchanger through the air passage to exchange heat, the plurality of solar heat collecting units convert solar energy into heat energy and the water flow pipe conveys the heat energy, and the heating pipeline communicated with the water flow pipe and the secondary heat exchanger heats the breeding greenhouse to reach the predetermined temperature.
Compared with the prior art, the invention has the beneficial effects that:
the invention adopts an organic integral scheme of solar heat collection, photovoltaic power generation and an air source heat pump to overcome the defects of low heat supply efficiency in winter and other temperature regulation modes of the air source heat pump in the prior art, a plurality of solar heat collection units positioned in a non-direct-injection area at the top of the breeding greenhouse can provide part of heat supply, when the temperature deviates from the preset temperature, the solar heat collection units and the air source heat pump powered by a rechargeable battery are used for heating, the electric energy is saved, and high-temperature steam from a condenser is contacted with a primary heat exchanger and a secondary heat exchanger through an air passage for heat exchange, so that the heat efficiency is obviously improved. The air source heat pump adopts the ultralow temperature air source heat pump and the unit as the outdoor unit, and uses a heating pipeline which is closed by a copper pipe and generates a closed ring after the indoor unit is connected in a closed manner for circularly heating or cooling, thereby reducing the operation cost and the investment cost. The invention uses the heat pump enhanced vapor injection technology as the outdoor unit part, and the use temperature range is greatly increased. The heat exchange area of the evaporator of the outdoor unit is increased, and the heat exchange efficiency is improved. The air pressure and the air quantity of partial fans of the indoor unit are increased, so that air circulation and heating and cooling air quantity are increased in the greenhouse, the process that an air source heat pump utilizes a shell and tube heat exchanger to convert hot water is omitted, heat conversion loss is reduced, the energy efficiency ratio and the heat efficiency are improved, the investment of a water pump valve pipeline part added after the air source heat pump converts hot water is omitted, the investment output proportion is improved, the heat loss in the pipeline conveying process is reduced, and the heat utilization efficiency is improved. An electric auxiliary heating part is omitted, electric energy is prevented from being directly converted into heat energy, and the electric energy utilization efficiency is improved.
Furthermore, the photovoltaic unit and the public power grid are connected in a grid-connected mode, the advantages of the photovoltaic unit and the public power grid are fully exerted, the system can normally operate under the condition that the energy storage of the rechargeable batteries is insufficient, the using quantity of the rechargeable batteries is reduced, and the manufacturing cost is reduced. The photovoltaic panel is adopted for power generation in a power generation mode, solar energy resources are fully utilized, and the solar photovoltaic panel is green and environment-friendly.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly apparent, and to make the implementation of the content of the description possible for those skilled in the art, and to make the above and other objects, features and advantages of the present invention more obvious, the following description is given by way of example of the specific embodiments of the present invention.
Drawings
Various other advantages and benefits of the present invention will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. Also, like parts are designated by like reference numerals throughout the drawings.
In the drawings:
FIG. 1 is a schematic structural diagram of a temperature regulating device of a seed culture greenhouse according to one embodiment of the invention;
FIG. 2 is a schematic view of a condenser structure of a temperature adjusting device of a breeding greenhouse according to one embodiment of the invention;
fig. 3 is a schematic illustration of the steps of a conditioning method according to one embodiment of the invention.
The invention is further explained below with reference to the figures and examples.
Detailed Description
Specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While specific embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
It should be noted that certain terms are used throughout the description and claims to refer to particular components. As one skilled in the art will appreciate, various names may be used to refer to a component. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The description which follows is a preferred embodiment of the invention, but is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the scope of the invention. The scope of the present invention is defined by the appended claims.
For the purpose of facilitating understanding of the embodiments of the present invention, the following description will be made by taking specific embodiments as examples with reference to the accompanying drawings, and the drawings are not to be construed as limiting the embodiments of the present invention.
For better understanding, as shown in fig. 1-2, a temperature adjustment device for a cultivation greenhouse includes,
a photovoltaic unit 1, the photovoltaic unit 1 configured to convert light energy into electric energy includes,
a solar photovoltaic panel 2 disposed outside the seed culture greenhouse to convert received light energy into direct current electric energy,
an inverter 3 electrically connected to the solar photovoltaic panel 2 to convert the DC power into AC power, the inverter 3 transmitting the AC power to a rechargeable battery 4 and an air source heat pump 5,
a rechargeable battery 4 connected to the inverter 3 to store the alternating current power;
an air source heat pump 5 comprising a compressor, an expansion valve connected to the compressor, a condenser generating heat energy, and an evaporator connected to the expansion valve, the air source heat pump 5 being connected to the inverter 3 and the rechargeable battery 4, wherein the condenser comprises,
a steam passage 6 through which high-temperature steam from the evaporator passes,
a primary heat exchanger 7, comprising a helical coil arranged around the steam channel 6,
a secondary heat transmitter 8 including spiral coils arranged around the primary heat transmitter 7, the secondary heat transmitter 8 communicating with the primary heat transmitter 7, slits formed by adjacent spiral coils configured as air passages 9, the high temperature steam contacting the primary heat exchanger and the secondary heat exchanger via the air passages 9 for heat exchange,
a plurality of heating pipes 10 distributed in the seed culture greenhouse for heating, wherein the plurality of heating pipes 10 are communicated with the secondary heat transmitter 8;
a plurality of solar heat collecting units 11, which comprise solar panels arranged at intervals on the top of the breeding greenhouse for converting solar energy into heat energy and water flow pipes for conveying the heat energy, wherein the water flow pipes are communicated with the heating pipeline 10;
the temperature sensor 12 is arranged in the seed culture greenhouse to measure temperature data;
a control unit 13 connected to the temperature sensor 12, the plurality of solar heat collecting units 11 and the air source heat pump 5,
in response to the temperature data deviating from the predetermined temperature, the control unit 13 controls the plurality of solar heat collecting units 11 and the air source heat pump 5 to heat, and the heating pipe 10 heats the seed culture greenhouse to reach the predetermined temperature.
In the preferred embodiment of the temperature regulating device for the breeding greenhouse, the primary heat transmitter 7 comprises a first layer surrounding the steam channel 6 and a second layer surrounding the first layer, one end of the second layer is communicated with the first layer, and the other end of the second layer is communicated with the secondary heat transmitter 8.
In the preferred embodiment of the temperature regulating device for the seed culture greenhouse, a plurality of solar heat collecting units 11 are arranged in a first area on the top of the seed culture greenhouse at equal intervals, and the first area is located in a non-direct solar radiation area of a seed culture object.
In the preferred embodiment of the said breeding greenhouse temperature regulating device, the spiral coil adjacent in the transverse direction and the fin surrounding the spiral coil form a slit to form an air flue 9.
In the preferred embodiment of the temperature adjusting device for the seed culture greenhouse, a plurality of heating pipelines 10 and the seed culture objects are distributed on the ground of the seed culture greenhouse at intervals.
In the preferred embodiment of the temperature adjusting device for the seed and culture greenhouse, the solar photovoltaic panels 2 are supported outside the seed and culture greenhouse through the bracket, and the solar photovoltaic panels 2 are connected in series and parallel.
In the preferred embodiment of the temperature adjusting device for the seed and culture greenhouse, the spiral coil is provided with fins, and the spiral coil is rotated clockwise and generated based on a circular spiral line as a ridge line.
In the preferred embodiment of the temperature regulating device for the breeding greenhouse, the air source heat pump 5 comprises a heat pump 5 and an air injection enthalpy-increasing heat pump 5.
In the preferred embodiment of the temperature regulating device for the breeding greenhouse, when the photovoltaic unit 1 does not generate electric energy, the rechargeable battery 4 and/or the power grid supply power to the air source heat pump 5, and the rechargeable battery 4 comprises the silicon rechargeable battery 4.
To further understand the present invention, in one embodiment, in the sunny winter season, the predetermined temperature of the seed culture greenhouse is 23 degrees, the seed culture greenhouse is a sealed transparent space under the irradiation of sunlight, the indoor temperature is 19 degrees, in response to the temperature data deviating from the predetermined temperature, a plurality of or all of the solar heat collecting units 11 are activated, which include solar panels for converting solar energy into thermal energy and water flow pipes for transporting thermal energy arranged at the top of the seed culture greenhouse at intervals, the water flow pipes are communicated with the heating pipe 10, the heating pipe 10 heats the seed culture greenhouse to 21 degrees, when all of the solar heat collecting units 11 are heated to less than 23 degrees, the control unit 13 activates the compressor of the air source heat pump 5, the high temperature steam from the condenser contacts the primary heat exchanger and the secondary heat exchanger via the air passage 9 for heat exchange, the plurality of solar heat collecting units 11 convert solar energy into solar panels for thermal energy and water flow pipes for transporting thermal energy, the heating pipeline 10 communicated with the water flow pipe and the secondary heat transmitter 8 heats the breeding greenhouse to reach a preset temperature, wherein electric energy supplied to the air source heat pump 5 comes from the photovoltaic unit 1, the solar photovoltaic panel 2 is arranged outside the breeding greenhouse to convert received light energy into direct current electric energy, the inverter 3 is electrically connected with the solar photovoltaic panel 2 to convert the direct current electric energy into alternating current electric energy, the inverter 3 transmits the alternating current electric energy to the rechargeable battery 4 and the air source heat pump 5, and the rechargeable battery 4 is connected with the inverter 3 to store the alternating current electric energy.
The adjusting device of the invention can obviously improve the thermal efficiency by continuously utilizing solar energy and transferring heat through the secondary spiral, and is particularly suitable for being used in winter.
In one embodiment, the secondary heat exchanger 8 is provided with a water inlet from which water flows in a spiral from bottom to top along the secondary heat exchanger, then enters the primary heat exchanger 7 and is discharged through its water outlet.
In one embodiment, the spacing of the outermost edges of the fins of the primary and secondary heat exchangers 7, 8 is less than 0.5 mm.
In one embodiment, the device is suitable for temperature regulation in winter, but not limited thereto, when in summer, the solar heat collecting unit 11 stops working, and the air source heat pump 5 delivers cold air to the heating duct to regulate temperature.
The adjusting method of the seed culture greenhouse temperature adjusting device comprises the following steps,
the solar photovoltaic panel 2 converts the received light energy into direct current electric energy, the inverter 3 transmits the alternating current electric energy to the rechargeable battery 4 and the air source heat pump 5,
the temperature sensor 12 measures the temperature data in the breeding greenhouse;
in response to the temperature data deviating from a predetermined temperature, the control unit 13 controls the plurality of solar heat collecting units 11 and the air source heat pump 5 to heat, the high temperature steam from the condenser contacts the primary heat exchanger and the secondary heat exchanger via the air passage 9 for heat exchange, the plurality of solar heat collecting units 11 convert the solar energy into heat energy and the water flow pipe for conveying the heat energy, and the heating pipe 10 communicating the water flow pipe and the secondary heat exchanger 8 heats the seed culture greenhouse to a predetermined temperature.
Industrial applicability
The device and the method for regulating the temperature of the seed culture greenhouse can be manufactured and used in the field of greenhouse temperature regulation.
The foregoing describes the general principles of the present application in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present application are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present application. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the foregoing disclosure is not intended to be exhaustive or to limit the disclosure to the precise details disclosed.
The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.
Claims (10)
1. A temperature adjusting device for a breeding greenhouse, which comprises,
a photovoltaic unit configured to convert light energy into electrical energy comprising,
a solar photovoltaic panel disposed outside the seed culture greenhouse to convert received light energy into direct current electrical energy,
an inverter electrically connected to the solar photovoltaic panel to convert the DC power into AC power, the inverter transferring the AC power to the rechargeable battery and the air source heat pump,
a rechargeable battery connected to the inverter to store the alternating current power;
an air source heat pump including a compressor, an expansion valve connected to the compressor, a condenser generating heat energy, and an evaporator connected to the expansion valve, the air source heat pump being connected to the inverter and the rechargeable battery, wherein the condenser includes,
a steam passage through which high-temperature steam from the evaporator passes,
a primary heat exchanger comprising a helical coil disposed around the vapor channel,
a secondary heat exchanger including spiral coils arranged around the primary heat exchanger, the secondary heat exchanger communicating with the primary heat exchanger, slits formed by adjacent spiral coils being configured as air passages through which the high-temperature steam contacts the primary heat exchanger and the secondary heat exchanger for heat exchange,
a plurality of heating pipelines which are distributed in the seed culture greenhouse for heating, and the plurality of heating pipelines are communicated with the secondary heat transmitter;
a plurality of solar heat collecting units which comprise solar panels and water flow pipes, wherein the solar panels are arranged at the top of the breeding greenhouse at intervals and used for converting solar energy into heat energy, and the water flow pipes are used for conveying the heat energy and communicated with the heating pipelines;
the temperature sensor is arranged in the seed culture greenhouse to measure temperature data;
a control unit connected to the temperature sensor, the plurality of solar heat collecting units and the air source heat pump,
in response to the temperature data deviating from a predetermined temperature, the control unit controls the plurality of solar heat collecting units and the air source heat pump to heat, and the heating pipeline heats the seed culture greenhouse to reach the predetermined temperature.
2. The temperature adjusting device for the seed culture greenhouse of claim 1, wherein the primary heat transmitter comprises a first layer surrounding the steam channel and a second layer surrounding the first layer, one end of the second layer is communicated with the first layer, and the other end of the second layer is communicated with the secondary heat transmitter.
3. The seed culture greenhouse temperature adjustment apparatus of claim 1, wherein the plurality of solar energy collection units are arranged at equal intervals in a first area on the top of the seed culture greenhouse, and the first area is located in a non-direct solar radiation area of the seed culture objects.
4. The seed culture greenhouse temperature adjustment apparatus of claim 1, wherein laterally adjacent helical coils and fins surrounding the helical coils form slits to configure air passages.
5. The temperature adjusting apparatus for a seed culture greenhouse of claim 1, wherein a plurality of heating pipes and the seed culture objects are distributed at intervals on the ground of the seed culture greenhouse.
6. The device for regulating temperature of a seed culture greenhouse of claim 1, wherein the solar photovoltaic panels are supported outside the seed culture greenhouse via brackets, and the solar photovoltaic panels are connected in series and parallel.
7. The seed culture greenhouse temperature adjustment apparatus of claim 1, wherein the helical coil is provided with fins, and the helical coil is generated based on a circular helix as a ridge line in clockwise rotation.
8. The seed culture greenhouse temperature adjustment device of claim 1, wherein the air source heat pump comprises a heat pump air injection enthalpy increasing heat pump.
9. The seed culture greenhouse temperature adjustment apparatus of claim 1, wherein when the photovoltaic unit is not generating electrical energy, the air source heat pump is powered by rechargeable batteries and/or an electrical grid, the rechargeable batteries comprising silicon rechargeable batteries.
10. A method for adjusting the temperature adjusting device of the breeding greenhouse of any one of the claims 1-9, which comprises the following steps,
the solar photovoltaic panel converts the received light energy into direct current electric energy, the inverter transmits the alternating current electric energy to the rechargeable battery and the air source heat pump,
the temperature sensor measures the temperature data in the breeding greenhouse;
in response to the temperature data deviating from a predetermined temperature, the control unit controls the plurality of solar heat collecting units and the air source heat pump to heat, high-temperature steam from the condenser contacts the primary heat exchanger and the secondary heat exchanger through the air passage to exchange heat, the plurality of solar heat collecting units convert solar energy into heat energy and the water flow pipe conveys the heat energy, and the heating pipeline communicated with the water flow pipe and the secondary heat exchanger heats the breeding greenhouse to reach the predetermined temperature.
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