CN107996212A - A kind of semiconductor refrigerating backing temperature control green house canopy film - Google Patents
A kind of semiconductor refrigerating backing temperature control green house canopy film Download PDFInfo
- Publication number
- CN107996212A CN107996212A CN201711469828.1A CN201711469828A CN107996212A CN 107996212 A CN107996212 A CN 107996212A CN 201711469828 A CN201711469828 A CN 201711469828A CN 107996212 A CN107996212 A CN 107996212A
- Authority
- CN
- China
- Prior art keywords
- film
- green house
- semiconductor refrigerating
- temperature control
- cooling piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
- A01G9/14—Greenhouses
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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
- A01G9/14—Greenhouses
- A01G9/1407—Greenhouses of flexible synthetic material
- A01G9/1415—Greenhouses of flexible synthetic material with double or multiple walls
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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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
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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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
Abstract
The present invention relates to awning film, and in particular to a kind of semiconductor refrigerating backing temperature control green house canopy film, including：Polyolefin film, cooling piece, PLC controller, heat sink, a kind of semiconductor refrigerating backing temperature control green house canopy film that the present invention uses, indoor required thermostat temperature is preset by PLC controller, when indoor temperature changes, realized by the current direction between PLC controller control cooling piece and heat sink and current strength to indoor heating and heat dissipation, fast uniform indoor temperature.
Description
Technical field
The present invention relates to awning film, and in particular to a kind of semiconductor refrigerating backing temperature control green house canopy film.
Background technology
Semiconductor chilling plate, is also thermoelectric module, is a kind of heat pump.Its advantages of is no slide unit, is applied
Some spaces are restricted, and reliability requirement is high, the occasion of no refrigerant pollution.Using the Peltier effects of semi-conducting material,
When the galvanic couple that direct current is connected into by two kinds of different semi-conducting materials, heat can be absorbed respectively at the both ends of galvanic couple and put
Go out heat, it is possible to achieve the purpose of refrigeration.It is a kind of Refrigeration Technique for producing negative thermal resistance, its main feature is that movement-less part, can
It is also higher by property.
In principle, semiconductor chilling plate is the instrument of a heat transfer.When one piece of N-type semiconductor material and one piece of p-type
The thermocouple centering that semi-conducting material is coupled to have electric current by when, heat transfer will be produced between both ends, heat will be from
One end is transferred to the other end, so that producing the temperature difference forms hot and cold side.But semiconductor itself there are resistance when electric current is led through more than half
Heat will be produced during body, so that heat transfer can be influenced.And the heat between two pole plates can also pass through air and semiconductor
Material itself carries out reverse heat transfer.When hot and cold side reaches certain temperature difference, when the amount of both heat transfers is equal, one will be reached
A equalization point, just reverse heat transfer are cancelled out each other.The temperature of hot and cold side would not continue to change at this time.It is lower in order to reach
Temperature, the modes such as heat dissipation can be taken to reduce the temperature in hot junction to realize.
Cooling piece is above had the following advantages that and feature in technology application as extraordinary low-temperature receiver：
1st, any refrigerant is not required, can continuous work, no pollution sources do not have rotary part, will not produce gyroscopic action, not have
It is a kind of solid sheet to have slide unit, and when work does not have vibrations, noise, long lifespan, and installation is easily.2nd, semiconductor chilling plate has
There are two kinds of functions, can freeze and heat, refrigerating efficiency is not generally high, but heating efficiency is very high, is always larger than 1.Therefore make
Discrete heating system and refrigeration system can be replaced with a sheet.3rd, semiconductor chilling plate is electric current transducing matrix part,
By the control of input current, it can be achieved that high-precision temperature control, along with temperature measurement and control means, it is easy to realize
Remote control, program-controlled, computer control, easy to form automatic control system.4th, semiconductor chilling plate thermal inertia is very small, cooling and warming
Time, in the case of the good cold end zero load of hot-side heat dissipation, as soon as being powered less than minute, cooling piece can reach maximum temperature quickly
Difference.5th, reverse use of semiconductor chilling plate is exactly thermo-electric generation, and semiconductor chilling plate applies in general to middle low-temperature space power generation.6、
The power very little of the single cooling module pair of semiconductor chilling plate, but pile is combined into, with the side of the pile series and parallel of same type
If method is combined into refrigeration system, power can be made big, therefore refrigeration work consumption can accomplish several milliwatts to upper myriawatt
Scope.7th, the temperature range of semiconductor chilling plate, can realize for 130 DEG C from positive 90 DEG C of temperature to negative temperature.
The application of semiconductor chilling plate is relatively broad, of less demanding for thermal conversion efficiency from USB refrigerator to water dispenser
Place, the application of semiconductor chilling plate is more appropriate, and greenhouse canopy film of the prior art is that individual layer or double-deck polyolefin are thin
Film, its heat insulating ability is good, but for the higher greenhouse of temperature requirements, single polyolefin film can not play constant temperature work
With.
The content of the invention
In order to solve the above technical problem, the present invention provides a kind of semiconductor refrigerating backing temperature control green house canopy film, its feature
It is to include：Polyolefin film, cooling piece, PLC controller, heat sink, the cooling piece are installed in polyolefin film, heat dissipation
Piece is installed on outside polyolefin film, is connected between cooling piece and heat sink by conducting wire, PLC controller control heat sink and
Current direction and intensity between cooling piece.
Preferably, the polyolefin film is bilayer film.
Compared with prior art, the present invention has the advantages that：
A kind of semiconductor refrigerating backing temperature control green house canopy film that the present invention uses, indoor required perseverance is preset by PLC controller
Temperature, when indoor temperature changes, the current direction and electricity between cooling piece and heat sink are controlled by PLC controller
Intensity of flow heats and heat dissipation, fast uniform indoor temperature to realize to indoor.
Brief description of the drawings
Fig. 1 is the structure diagram between canopy film and cooling piece, heat sink in patent of the present invention；
In figure, cooling piece 1, heat sink 2, Shed Film of Polyolefin 3, PLC controller 4.
Embodiment
The present invention is described further below in conjunction with attached drawing：
Embodiment：Such as Fig. 1, a kind of semiconductor refrigerating backing temperature control green house canopy film of the invention, it is characterised in that including：Polyolefin
Film, cooling piece, PLC controller, heat sink, the cooling piece are installed in polyolefin film, and heat sink is installed on polyolefin
Outside film, connected between cooling piece and heat sink by conducting wire, the electricity between the PLC controller control heat sink and cooling piece
Flow direction and intensity.
The further setting of the present invention is that the polyolefin film is bilayer film.
A kind of semiconductor refrigerating backing temperature control green house canopy film that the present invention uses, is preset needed for interior by PLC controller
Thermostat temperature, when indoor temperature changes, pass through PLC controller and control current direction between cooling piece and heat sink
Realized with current strength to indoor heating and heat dissipation, fast uniform indoor temperature.
Using technological invention of the present invention, or those skilled in the art is under the inspiration that the technology of the present invention is invented, if
Similar technological invention is counted out, and reaches above-mentioned technique effect, is to fall into protection scope of the present invention.
Claims (2)
- A kind of 1. semiconductor refrigerating backing temperature control green house canopy film, it is characterised in that including：Polyolefin film, cooling piece, PLC controls Device, heat sink, the cooling piece are installed in polyolefin film, and heat sink is installed on outside polyolefin film, cooling piece and heat dissipation Connected between piece by conducting wire, current direction and intensity between the PLC controller control heat sink and cooling piece.
- A kind of 2. semiconductor refrigerating backing temperature control green house canopy film according to claim 1, it is characterised in that the polyolefin Film is bilayer film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711469828.1A CN107996212A (en) | 2017-12-29 | 2017-12-29 | A kind of semiconductor refrigerating backing temperature control green house canopy film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711469828.1A CN107996212A (en) | 2017-12-29 | 2017-12-29 | A kind of semiconductor refrigerating backing temperature control green house canopy film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107996212A true CN107996212A (en) | 2018-05-08 |
Family
ID=62049210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711469828.1A Pending CN107996212A (en) | 2017-12-29 | 2017-12-29 | A kind of semiconductor refrigerating backing temperature control green house canopy film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107996212A (en) |
-
2017
- 2017-12-29 CN CN201711469828.1A patent/CN107996212A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180508 |
|
| WD01 | Invention patent application deemed withdrawn after publication |