CN209459041U - Solar energy heat distribution system for greenhouse - Google Patents
Solar energy heat distribution system for greenhouse Download PDFInfo
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- CN209459041U CN209459041U CN201920099096.XU CN201920099096U CN209459041U CN 209459041 U CN209459041 U CN 209459041U CN 201920099096 U CN201920099096 U CN 201920099096U CN 209459041 U CN209459041 U CN 209459041U
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- heat
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- water storage
- hot water
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
Abstract
The utility model relates to a kind of solar energy heat distribution systems for greenhouse, belong to solar-heating technical field.The system is made of solar thermal collector, regenerative apparatus, collection hot recycle pump, heat circulation pump and at least one heat dissipation equipment being arranged in greenhouse.Solar thermal collector includes: solar panel;Solar panel is mounted on loading plate;Loading plate is fixed on the supporting plate horizontal by the inclination of default angle;Loading plate upper end connects support plate, and loading plate bottom edge is connect by bottom plate with support plate;Support plate is fixed in connecting rod;Connecting rod is perpendicular to ground;Connecting rod bottom connects rotating device;Rotating device is rotated according to predetermined manner;The heat that regenerative apparatus storage solar heat-collection plate obtains, is transported at the heat dissipation equipment of related agricultural facility by circulating pump.Solve the problems, such as that heating system pollution in the prior art, territory restriction are big and harm is big.
Description
Technical field
The utility model belongs to solar-heating technical field, and in particular to a kind of solar-heating for greenhouse
System.
Background technique
As large agricultural country, agricultural facility has a decisive role in China, right with the significantly variation of weather
The heat supply of agricultural facility increasingly constitutes emphasis concerned by people.
Currently, the heating source of traditional agricultural facility is coal, coal is in boiler by burning to the water in boiler
Heating, the water after heating enters the heat dissipation equipment in greenhouse by circulating pump, by end heat dissipation equipment by heat transmission
To inside greenhouse.With the development of science and technology the heating system of agricultural facility is also regenerated in transformation and upgrade, newly-increased heat source has: day
Right gas boiler, oil burning boiler, electric heating heating, Heating by Ground Source Heat Pump.
But traditional briquette boiler is serious to air pollution, current use of many territorial restrictions to coal;Natural steam pot
Furnace, earth source heat pump are by territory restriction;Natural gas boiler, oil burning boiler fuel be all to belong to inflammable and explosive substances, boiler room hair
The harm of raw explosion is bigger.
Utility model content
In order to solve the problems, such as that heating system of the existing technology pollutes, territory restriction is big and harm is big, this is practical
It is novel to provide a kind of solar energy heat distribution system, have the characteristics that pollution-free, territory restriction is small and harm is small.
The technology employed by the present utility model is
On the one hand, a kind of heating system for greenhouse, the system comprises: solar thermal collector, regenerative apparatus,
Collect hot recycle pump, heat circulation pump and at least one heat dissipation equipment being arranged in the greenhouse;
The solar thermal collector includes: solar panel;The solar panel is mounted on loading plate;It is described
Loading plate is fixed on the supporting plate horizontal by the inclination of default angle;The loading plate upper end connects the support plate, described
Loading plate bottom edge is connect by bottom plate with the support plate;The support plate is fixed in connecting rod;The connecting rod perpendicular to
Ground;The connecting rod bottom connects rotating device;The rotating device is rotated according to predetermined manner;
The regenerative apparatus includes: heat exchanger, hot water storage tank;
The heat exchanger side is connected with the solar thermal collector, composition collection hot loop;
The heat exchanger other side is connected with the hot water storage tank, forms heating circuit;
The hot water storage tank other side is connected with the heat dissipation equipment, forms heat supplying loop;
The solar thermal collector converts the solar into thermal energy, and the energy heats are stored in the solar thermal collector
In first medium, the collection hot recycle pump drives the first medium to circulate in the collection hot loop, by the heat
It can be transported in the heat exchanger from the solar thermal collector;The heat exchanger heats the hot water storage tank by heat exchange
Interior second medium;The heat circulation pump drives the second medium to circulate in the heat supplying loop, by heat from
The hot water storage tank is conducted to the heat dissipation equipment.
Still optionally further, the hot water storage tank is connected by pipeline with the heat dissipation equipment.
Still optionally further, the hot water storage tank connects foggara by the first valve;
First valve is set on the hot water storage tank.
Still optionally further, the second valve is additionally provided at the connecting pipe of the hot water storage tank and the heat circulation pump;
Second valve controls the flow of the second medium.
Still optionally further, the system also includes: processing chip;It is the processing chip and the collection hot loop, described
Heating circuit, the heat supplying loop are respectively connected with.
Still optionally further, the heat dissipation equipment is equipped with temperature sensor, the temperature sensor and the processing chip
Be connected, by real-time detection to temperature value be sent to the processing chip.
Still optionally further, the system also includes be wirelessly connected component;The wireless connection component and the processing core
Piece is connected;The wireless module interacts external equipment with processing chip progress wireless data.
Still optionally further, the system also includes heating devices;The heating device is connected with the regenerative apparatus;
Second medium in hot water storage tank described in the heating devices heat.
Still optionally further, the system also includes batteries, solar panel;The battery and the sun
Energy solar panel is connected, and the battery provides power supply for the heating device.
Still optionally further, the system also includes humidifiers;The humidifier is set to the heat dissipation equipment one
Side;The humidifier is connected with the processing chip;The humidifier is connected with the battery.
Solar energy heat distribution system provided by the embodiment of the utility model applied to greenhouse, by solar thermal collector,
Regenerative apparatus, collection hot recycle pump, heat circulation pump and at least one heat dissipation equipment composition being arranged in greenhouse.Accumulation of heat dress
The heat that storage solar heat-collection plate obtains is set, related agricultural facility is transported to by heat circulation pump and uses end.With not by
Territory restriction, it is pollution-free, harm is small the features such as, solve that heating system pollution in the prior art, territory restriction be big and harm
Big problem.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the heating system structure schematic diagram provided by the embodiment of the utility model for greenhouse;
Fig. 2 is solar thermal collector structural schematic diagram provided by the embodiment of the utility model;
Fig. 3 provides solar thermal collector for another embodiment of the utility model and installs side view;
Fig. 4 is the heating system structure schematic diagram for greenhouse that another embodiment of the utility model provides.
11- solar thermal collector in figure;12- regenerative apparatus;13- collection hot recycle pump;14- heat circulation pump;15- heat dissipation is set
It is standby;121- heat exchanger;122- hot water storage tank;112- solar panel;113- loading plate;114- support plate;115- rotating disk;
116- connecting rod;117- bottom plate;16- handles chip;17- temperature sensor;18- wireless module;19- heating device;
A- collection hot loop;B- heating circuit;C- heat supplying loop.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
In order to which the technical solution of the utility model is explained, the utility model provides an embodiment.Fig. 1 is this
The heating system structure schematic diagram for greenhouse that utility model embodiment provides, referring to Fig. 1, the utility model embodiment
The heating system for greenhouse provided includes: solar thermal collector 11, regenerative apparatus 12, collection hot recycle pump 13, heat supply
Circulating pump 14 and at least one heat dissipation equipment 15 being arranged in greenhouse.
Wherein, regenerative apparatus 12 includes heat exchanger 121, hot water storage tank 122.121 side of heat exchanger and solar thermal collector
11 are connected, composition collection hot loop A.121 other side of heat exchanger is connected with hot water storage tank 122, forms heating circuit B.Hot water storage tank
122 other sides are connected with heat dissipation equipment 15, form heat supplying loop C.
Specifically, solar thermal collector converts the solar into thermal energy, and energy heats are stored in solar thermal collector
First medium, collection hot recycle pump driving first medium circulate in collection hot loop, and thermal energy is conveyed from solar thermal collector
Into heat exchanger;Heat exchanger exchanges the second medium in heat storage water tank by heat;Heat circulation pump drives second medium
It circulates, heat is conducted from hot water storage tank to heat dissipation equipment, heat dissipation equipment is completed to specific environment in heat supplying loop
Heat supply.Meanwhile regenerative apparatus can at night without the sun when using daytime storage heat to greenhouse radiate.
For example, during the greenhouse to agricultural facility carries out heat supply, for energy conservation and environmental protection, the coal of abandoning tradition
Charcoal heat-supplying mode, using solar-heating.In the solar energy heat distribution system of the present embodiment, solar thermal collector is absorbed from outer
The solar energy on boundary converts the solar into thermal energy, and is stored in the first medium in solar thermal collector using energy heats,
Under the driving for collecting hot recycle pump, so that the first medium being heated circulates in collection hot loop, thus by thermal energy from the sun
It can be delivered in heat exchanger in heat collector.It is worth noting that first medium herein is according to solar thermal collector and heat exchanger
The distance between, flow set, for example, setting first medium be water.Water herein is enumerating to first medium
It is bright, it is not to limit.
In heating circuit B, heat exchanger is exchanged by heat, the second medium in heat storage water tank.For example, herein
Second medium is water.In heat supplying loop C, heat circulation pump driving second medium water flowed in heat supplying loop, by heat from
Hot water storage tank is conducted to heat dissipation equipment.Heat dissipation equipment radiates in temperature greenhouse.Hot water storage tank and heat dissipation equipment pass through pipe
Road connection.
For example, heat dissipation equipment selects radiator, in greenhouse, according to the area and leakproofness of greenhouse, it is suitable to select
The radiator of specification guarantees the temperature requirement of agricultural plant in greenhouse.In order to further ensure that plant in agricultural greenhouse greenhouse
Required temperature can also add blower and carry out heat supply to agricultural greenhouse greenhouse.
Fig. 2 is solar thermal collector structural schematic diagram provided by the embodiment of the utility model, and Fig. 3 is that the utility model is another
Embodiment provides solar thermal collector and installs side view.Referring to fig. 2, Fig. 3, solar thermal collector include: solar panel
112.Solar panel is mounted on loading plate 113, and loading plate 113 is fixed on support horizontal by default angle tilt alpha
On plate 114.113 upper end of loading plate is connected with support plate 114, and the bottom edge of loading plate 113 is connected by bottom plate 117 and support plate 114
It connects, support plate 114 is fixed in connecting rod 116.Connecting rod 116 connects rotating device perpendicular to ground, 116 bottom of connecting rod
115.Rotating device 115 can be manually rotated, and can also be rotated according to the preset time.
For example, in order to meet the needs of plantation, being equipped with multiple greenhouses, occupied area is larger in farm.At this point,
In order to promote collecting efficiency, suitable space in greenhouse region, for example, the week in the middle position of multiple greenhouses or greenhouse region
Enclose the solar thermal collector of installation the present embodiment.Solar panels are mounted on loading plate, connecting rod will be carried by support plate
Plate is placed in the sky.User selects the connecting rod of proper height according to itself demand.
In the solar thermal collector of greenhouse heating system, solar thermal collector is set to the outdoor canopy of greenhouse
On top, loading plate is set, for carrying solar panel.Solar panel is laid on loading plate, in order to ensure the sun
Energy solar panel is irradiated by sufficient sunlight, and setting loading plate and horizontal plane tilt angle are α, and the upper end of loading plate connects support
Plate.Support plate and horizontal plane, are used to support loading plate.For example, the tilt angle of loading plate is set as 40 °, expired with this
Sufficient solar panel is by sunlit adequacy.It should be noted that tilt angle herein is only to illustrate, not
It is to limit.User can be adjusted it according to local region situation.The bottom edge of support plate and loading plate passes through same bottom plate
Connection, support plate, loading plate and bottom plate constitute hollow prism body.For connecting rod perpendicular to ground, upper end connects support plate, and bottom connects
Connect rotating device.Rotating device promotes the sun on loading plate by driving connecting rod rotation so that loading plate rotates
The thermal-arrest rate of energy collecting plate.
For example, rotating device is rotating disk, timing motor is equipped in rotation, motor is according to the setting of user, defined
Time is rotated according to preset revolving speed, so that solar panels drop into capable rotation with the liter of the sun, absorbs sufficient sun
Light.
Referring to fig. 2, Fig. 3, in order to promote collecting efficiency, at least one settable carrying solar battery in same connecting rod
One or more connecting rods can be set on the collection higher farm of heat demand in the loading plate of plate, are arranged in each connecting rod more
A loading plate, saves installation space.
Solar energy heat distribution system provided by the embodiment of the utility model applied to greenhouse, regenerative apparatus store the sun
Heat is transported to related agricultural facility by circulating pump and uses end by the heat that energy collecting plate obtains.In solar energy heating, this
Embodiment is by being arranged the inclination angle of solar thermal collector and rotating disk being arranged under heat collector, so that in solar thermal collector
Solar panel by sufficient illumination, have the characteristics that without geographical restrictions, it is pollution-free, endanger small, solve existing skill
Heating system pollution, the problem that territory restriction is big and harm is big in art.
Fig. 3 is the heating system structure schematic diagram for greenhouse that another embodiment of the utility model provides.
Further, hot water storage tank 122 connects foggara by the first valve, and the first valve is set to hot water storage tank
On.First valve is used in Water in Water Tanks point evaporation or leakage, is water tank amount of makeup water.
Further, the second valve, the second valve control are equipped at the connecting pipe of hot water storage tank 122 and heat circulation pump 14
The flow of water processed.When greenhouse temperature is too high or too low, by adjusting the folding amount of the second valve, greenhouse temperature is adjusted.
Further, referring to Fig. 3, in order to promote the automatic control performance of the solar energy heat distribution system for greenhouse, this reality
The heating system for applying example is additionally provided with processing chip 16.Processing chip is respectively electrically connected with collection hot loop, heating circuit, heat supplying loop
It connects.
For example, using single-chip microcontroller as processing chip, the present embodiment is selected STM32 series monolithic, especially be can be used
STM32f103VET6 single-chip microcontroller.Processor cores of the STM32 series of products based on super low-power consumption integrate the technology and function of enhancing
Can, the Series of MCU shorten equipment using 8 and 16 8-digit microcontrollers and 32 8-digit microcontrollers of use equipment it
Between performance gap, can realize advanced and complicated function on economical user terminal product, it is suitable to the height of environment
Ying Xing meets the requirement in the present embodiment to controller to the succinct requirement property of condition, and its small volume more can be
It saves most space.Equally, the product of other models no longer carries out herein also within the protection scope of the present embodiment
Enumerate explanation.
It should be noted that control chip involved in the utility model embodiment, specific implementation principle, circuit and institute
Element is needed to be all made of the prior art well-known to those skilled in the art, the realization for the control chip functions, this field skill
Art personnel do not need to make the creative labor, and details are not described herein again.The present embodiment is in such a way that single-chip microcontroller is according to setting to a
Circuit is adjusted.Solves the inconvenience of manual adjustment.
Further, the heating system of the present embodiment is additionally provided with temperature sensor 17, temperature sensor and processing chip phase
Connection, by real-time detection to temperature information be sent to processing chip.
For example, the present embodiment selects pt100 sensor as the temperature acquisition sensor in greenhouse, the temperature of this sensor
The acquisition range of degree can be at -200 DEG C 22850 DEG C, and humidity collection range is 0%2100%, can meet the temperature in the present embodiment
Acquisition condition is spent, the accuracy of testing result also can preferably guarantee the effect of its operation.Temperature sensor will be collected
Temperature information is sent to processor of single chip computer, and single-item machine processor is according to user according to set by the generation demand of greenhouse implants
Temperature range, system is adjusted, so that the temperature of greenhouse is constantly in the growth demand of plant.It is emphasized that
This model is only illustrated by way of example, the sensor of other models, the principles of the present invention of use, belongs to this
The protection scope of utility model.
Further, referring to Fig. 3, the heating system of the present embodiment further includes being wirelessly connected component 18, is wirelessly connected component
It is connected with processing chip, so that external equipment and processing chip carry out data interaction.
For example, in the present embodiment, by wireless module, user connects mobile phone or computer terminal, leads to user
The temperature information for crossing mobile phone or computer control greenhouse, improves the convenience of system control.
Further, referring to Fig. 3, the heating system of the present embodiment further includes heating device 19, and heating device and accumulation of heat fill
Set it is connected, for the water in heat storage water tank.For example, solar-heating can not on a run of wet weather or snow continuous date
The daily need for meeting greenhouse, opens heating device at this time, heats to hot water storage tank, formed with solar-heating it is complementary,
Further improve the practicability of the present embodiment solar energy heat distribution system.
Further, the heating system of the present embodiment is additionally provided with battery, and battery is connected with solar panel, so that
To charge the battery, battery provides power supply for heating device to solar panel.For example, being opened on the sun-drenched date
The connection of battery and solar panel, so that solar panel is to charge the battery, when sunlight deficiency, electric power storage
Chi Kewei heating device provides power supply.
Further, in order to promote the growth conditions indexes of greenhouse implants, the solar energy system of the present embodiment is additionally provided with
Humidifier, humidifier are arranged in greenhouse, are connected with processing chip, when needing to humidify in greenhouse, add for greenhouse air
It is wet.In order to save electricity, humidifier is set as connecting with battery.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
It is understood that same or similar part can mutually refer in the various embodiments described above, in some embodiments
Unspecified content may refer to the same or similar content in other embodiments.
It should be noted that term " first ", " second " etc. are used for description purposes only in the description of the present invention,
It is not understood to indicate or imply relative importance.In addition, in the description of the present invention, unless otherwise indicated, it is " more
It is a " meaning refer at least two.
In addition, can integrate in a processing module in each functional unit in each embodiment of the utility model,
It can be each unit to physically exist alone, can also be integrated in two or more units in a module.It is above-mentioned integrated
Module both can take the form of hardware realization, can also be realized in the form of software function module.The integrated mould
If block is realized and when sold or used as an independent product in the form of software function module, it also can store and counted at one
In calculation machine read/write memory medium.
Storage medium mentioned above can be read-only memory, disk or CD etc..
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Stating may not refer to the same embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (10)
1. a kind of heating system for greenhouse, which is characterized in that the system comprises: solar thermal collector, accumulation of heat dress
It sets, collect hot recycle pump, heat circulation pump and at least one heat dissipation equipment being arranged in the greenhouse;
The solar thermal collector includes: solar panel;The solar panel is mounted on loading plate;The carrying
Plate is fixed on the supporting plate horizontal by the inclination of default angle;The loading plate upper end connects the support plate, the carrying
Board bottom side is connect by bottom plate with the support plate;The support plate is fixed in connecting rod;The connecting rod is perpendicular to ground;
The connecting rod bottom connects rotating device;The rotating device is rotated according to predetermined manner;
The regenerative apparatus includes: heat exchanger, hot water storage tank;
The heat exchanger side is connected with the solar thermal collector, composition collection hot loop;
The heat exchanger other side is connected with the hot water storage tank, forms heating circuit;
The hot water storage tank other side is connected with the heat dissipation equipment, forms heat supplying loop;
The solar thermal collector converts the solar into thermal energy, and the energy heats are stored in the solar thermal collector
First medium, the collection hot recycle pump drive the first medium to circulate in the collection hot loop, by the thermal energy from
The solar thermal collector is transported in the heat exchanger;The heat exchanger is heated in the hot water storage tank by heat exchange
Second medium;The heat circulation pump drives the second medium to circulate in the heat supplying loop, by heat from described
Hot water storage tank is conducted to the heat dissipation equipment.
2. heating system according to claim 1, which is characterized in that the hot water storage tank is set by pipeline and the heat dissipation
It is standby to be connected.
3. heating system according to claim 2, which is characterized in that the hot water storage tank connects underground by the first valve
Water pipe;
First valve is set on the hot water storage tank.
4. heating system according to claim 2, which is characterized in that the company of the hot water storage tank and the heat circulation pump
The second valve is additionally provided at adapter tube road;Second valve controls the flow of the second medium.
5. heating system described in -4 any claims according to claim 1, which is characterized in that the system also includes: place
Manage chip;The processing chip is respectively connected with the collection hot loop, the heating circuit, the heat supplying loop.
6. heating system according to claim 5, which is characterized in that the heat dissipation equipment is equipped with temperature sensor, described
Temperature sensor is connected with the processing chip, by real-time detection to temperature value be sent to the processing chip.
7. heating system according to claim 5, which is characterized in that the system also includes be wirelessly connected component;It is described
Component is wirelessly connected to be connected with the processing chip;It is wireless that the wireless module carries out external equipment and the processing chip
Data interaction.
8. heating system according to claim 5, which is characterized in that the system also includes: heating device;The heating
Device is connected with the regenerative apparatus;Second medium in hot water storage tank described in the heating devices heat.
9. heating system according to claim 8, which is characterized in that the system also includes: battery, solar battery
Plate;The battery is connected with the solar panel, and the battery provides power supply for the heating device.
10. heating system according to claim 9, which is characterized in that the system also includes: humidifier;It is described to add
Wet device is set to the heat dissipation equipment side;The humidifier is connected with the processing chip;The humidifier and institute
Battery is stated to be connected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201920099096.XU CN209459041U (en) | 2019-01-21 | 2019-01-21 | Solar energy heat distribution system for greenhouse |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201920099096.XU CN209459041U (en) | 2019-01-21 | 2019-01-21 | Solar energy heat distribution system for greenhouse |
Publications (1)
Publication Number | Publication Date |
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CN209459041U true CN209459041U (en) | 2019-10-01 |
Family
ID=68045216
Family Applications (1)
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CN201920099096.XU Active CN209459041U (en) | 2019-01-21 | 2019-01-21 | Solar energy heat distribution system for greenhouse |
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2019
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