CN204830527U - A solar energy heating system for green house ground temperature heats - Google Patents
A solar energy heating system for green house ground temperature heats Download PDFInfo
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- CN204830527U CN204830527U CN201520547348.2U CN201520547348U CN204830527U CN 204830527 U CN204830527 U CN 204830527U CN 201520547348 U CN201520547348 U CN 201520547348U CN 204830527 U CN204830527 U CN 204830527U
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- water tank
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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
- Y02E10/44—Heat exchange systems
Abstract
The utility model provides a solar energy heating system for green house ground temperature heats for solve the low problem that is unfavorable for vegetation of ground temperature. He includes big -arch shelter, solar energy collection pipe, water tank, radiating coil pipe ) and difference in temperature circulating pump, during radiating coil pipe buried the soil in the big -arch shelter canopy underground, through the pipe connection between radiating coil pipe and the water tank, it had heat -conducting medium to fill between radiating coil pipe and the water tank, is provided with difference in temperature circulating pump in the pipeline between radiating coil pipe and the water tank, simultaneously, set up a temperature sensor in the water tank, be equipped with the 2nd temperature sensor in the soil of radiating coil pipe department, install the 3rd temperature sensor in the pipeline, and three sensor and difference in temperature circulating pump are electrically connected to the signal output part mouth of controller respectively. This device has circulation, heat exchange, function such as steerable, utilizes solar energy to heat for ground temperature, and the ground pipe laying directly buries underground in the rib, heats soon. Originally, it is lower to heat the device cost, and the installation is maintained simply.
Description
Technical field
The utility model relates to plastic shed soil technical field of temperature control, specifically a kind of solar heating system heated for agricultural greenhouse ground temperature.
Background technology
Greenhouse gardening meets plant growth needs by Artificial Control indoor temperature and humidity, thus broken away from the undesirable element of extraneous natural conditions.For region, Shandong February, now canopy temperature can reach 30 degree, but the ground temperature in rib is but at about 12 degree, namely can not meet the quick growth needs of plant, crops can be caused ill because of root low temperature again.Limit by economic condition, in booth, soil does not have effective, economic heating heating device.Also have indivedual booth to install auxiliary thermal source additional, but construction cost is too high, energy consumption is too high, is difficult to apply.
For this reason, some booths have carried out auxiliary heating process,
Auxiliary heating is generally directly in rib, lay heating tube or heating cables, and construction cost is too high.Heater is complicated, and maintenance cost is higher, once damage, layman is difficult to repair, and delays use.The resources such as common heating device at substantial coal electricity, expense is too high, is difficult to promote the use of in actual production.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of device heated for agricultural greenhouse ground temperature, is main heat energy source, heats rib key position, reduce planting cost with solar energy.
The technical scheme in the invention for solving the technical problem is:
A kind of solar heating system heated for agricultural greenhouse ground temperature, comprise booth, solar energy heat collection pipe, water tank, radiator coil tube and temperature-difference circulation pump, described solar energy heat collection pipe connects water tank, it is characterized in that, described radiator coil tube is embedded in the soil in greenhouse, described radiator coil tube is connected by pipeline with between water tank, is filled with heat-conducting medium between described radiator coil tube and water tank, is provided with temperature-difference circulation pump in the pipeline between described radiator coil tube and water tank; Meanwhile,
First temperature sensor is set in water tank;
The second temperature sensor is provided with in the soil at radiator coil tube place;
In described pipeline, three-temperature sensor is installed;
And above-mentioned three sensors and temperature-difference circulation pump are electrically connected to the signal output port of controller respectively.
As embodiment further, in water tank, be provided with assisted heating device.
As embodiment further, described assisted heating device is the one in electric heating tube assisted heating device or gas furnace.
As embodiment further, also comprise four magnetic valves, four magnetic valves are respectively the first magnetic valve, the second magnetic valve, the first pilot solenoid valve and the second pilot solenoid valve, wherein, first magnetic valve, the second magnetic valve be serially connected in respectively pipeline into and out of end, simultaneously open and close; Described first pilot solenoid valve and the second pilot solenoid valve are serially connected in an arm respectively, simultaneously open and close, and described arm two ends difference connecting pipe is into and out of end.
As embodiment further, described radiator coil tube adopts the roundabout layout of S shape.
As embodiment further, described underground pipe is that floor heating PE-RT manages.
As embodiment further, described solar energy heat collection pipe is placed on booth both sides.
As embodiment further, the planting district of described radiator coil tube successively in canopy.
As embodiment further, described heat-conducting medium is circulation anti-freezing medium or water.
The utility model has the low effect of cost low energy:
The functions such as this device has circulation, heat exchange, can control, utilize solar energy to heat to ground temperature, and underground pipe are directly embedded in rib, heat fast.This heating device cost is lower, and installation and maintenance are simple.And this novel solar thermal collector that utilizes absorbs heat, by heat transfer medium floor heating pipe, heat is passed to soil thus raising ground temperature.In solar energy heating technology, metal plate magnetic control film coating technology is utilized to improve greenhouse-environment temperature.In heat transfer process, timing reversing technology is utilized to solve the harmony of ground temperature.
By the enforcement of this device, the lifting of environment temperature, ground temperature promotes the growth of crop, reduces growth cycle, improves output.Simultaneously due to the breeding of the lifting promotion microorganism of ground temperature, improve fertilizer efficiency.Reach the object that joint is fertile.
Accompanying drawing explanation
Fig. 1 is partial schematic diagram of the present utility model;
Fig. 2 is principle schematic of the present utility model;
Fig. 3 is the layout schematic diagram of underground pipe.
Fig. 4 is the schematic diagram of embodiment two.
In figure: 1 radiator coil tube, 2 solar energy heat collection pipes, 3 water tanks, 4 temperature-difference circulation pumps, 5 controllers.
Detailed description of the invention
As shown in Figure 1, Figure 2, Figure 3 shows, according to the agricultural greenhouse situation that the soil moisture is on the low side in the winter time, now adopt solar energy heat collection pipe, collect solar heat heating and anti-freezing circulatory mediator or water, and keep in attemperater 3, according to soil, the number needs of solar energy heat collection pipe 2 will require that the heat Calculation that the temperature promoted consumes draws, the booth of different size, the alley number of varying number needs the heat collector being equipped with varying number.Arrange radiator coil tube 1 in plastic shed soil, underground heat dedicated pipe can be adopted, cloth setting in immediately below every root ridge, below root system of plant.Employing serpentine coil is arranged, is circulation anti-freezing medium or water, for the conduction of heat in coil pipe.
Adopt the transition of a water tank 3 between radiator coil tube and heat collector, wherein water tank is used for the temporary of hot water and transition.
For preventing solar energy under the weather conditions such as cloudy precipitation not enough, arranging electric heating tube auxiliary heating in water tank 3 or adopting other energy auxiliary as fuel-firing gas-firing stove etc.
Solar energy heat collection pipe is the preferential solar energy optical-thermal collecting plate adopting electron tubes type within rational cost, but is not limited to the collecting plate of electron tubes type, and utilize photo-thermal effect to carry out the photothermal deformation of solar energy, solar energy heat collection pipe heats directly to the water in water tank.Temperature difference discontinuous cycle pattern is adopted to carry out auxiliary heating to soil between water tank and radiator coil tube, namely floor heating circulation pump is started when the soil moisture drops to design temperature, be elevated to design temperature, circulating pump stops, and detailed process is described in detail in structure below.
Existing agricultural greenhouse needs soil to heat, and the existing soil moisture is 13 DEG C ~ 15 DEG C, requires to be heated to 16 DEG C ~ 18 DEG C.Heat experience according to original solar vacuum glass tube, single glass tube can meet ground, a ridge soil heating requirements, and heat release section length 9m, two ridges are spaced apart 700mm.Owing to not knowing embody rule place, first fix tentatively as Beijing area, consult related data and obtain, winter months average solar radiation amount in level ground, Beijing area presses 7.0MJ/m
2.d.
Solar vacuum glass tube specification is φ 58 × 1800, and single glass tube accepts solar radiation area: A=0.058 × 1.78 (actual illumination length)=0.1m
2.Sunshine-duration is 8 hours, then single glass tube heating power is P1=7.0 × 0.1 ÷ 8 ÷ 3600 × 1000000=24.3W.Radiation loss is by 15% estimation, then actual heating power P2=24.3 × (100-15) %=20.6W, the radiating tube segment length be arranged in soil is 9m.
Agricultural greenhouse size is by long 50 meters, wide 10 meters, requires that floor file warm sector domain sizes is by 49 meters × 9 meters.Every ridge is spaced apart 700mm, every row spacing limit 500mm, then each booth can arrange a 49000 ÷ 700=70 ridge.
Then soil heat need general power according to the above P0=70 × 24.3W=1701W.After being replaced by solar energy grounding heat coil tube mode of heating, because coil pipe between needs two ridge needs to connect, the length of pipe of increase is:
L＝700×3.14×69÷2÷1000＝75.8m。
The pipeline increased needs the thermic load increased: P3=75.8 ÷ 9 × 24.3=204.7W.
Total heat duties: P=P0+P3=1905.7W.
This solar heating system, soil radiator portion adopt floor heating dedicated pipe PE-RT (heat-proof polythene), external diameter φ 25, coiled tube arrangements as shown in Figure 2:
Solar thermal collector is placed outside booth on vacant lot, and heat collector form structure is shown in Fig. 2, the hot water in water tank and indoor radiator coil tube by forced circulation constantly by the hot water circuit in heat collector water tank to soil heat release, in order to improve the soil moisture.
By calculating, every platform heat collector collector area is: 2m
2, then common booth needs heat collector quantity to be altogether: 4
Carry out technological improvement for existing agricultural greenhouse, particularly, be handled as follows and transformation:
In this system, there is following function:
Temperature difference circulatory function
The thermal-arrest temperature difference circulates: as the temperature t2 temperature difference > that soil temperature sensor T2 in the middle part of the temperature t1 that heat collector temperature sensor T1 detects and booth detects 15 DEG C, corresponding thermal-arrest circulating pump starts, as heat collector temperature t1 and the plastic shed soil temperature t2 temperature difference≤5 DEG C, corresponding thermal-arrest circulating pump stops, as shown in Figure 2.
Automatic water supplement function
Heating circulation line is the non-pressure circulation of open type, docks with running water at Setting MARC, and system running pressure is circulating pump from the beginning.
Antifreeze antifreezing function
System disposition automatic freezing-protective function, namely control system detect temperature t3 that Tube Temperature Sensor T3 detects lower than design temperature as 5 DEG C then automatically start antifreeze circulation or electric tracing antifreeze, should by producer in conjunction with actual conditions specific design.The low temperature of subzero 10 DEG C ~ 30 DEG C can be resisted when running in the winter time, prevent pipeline from occurring the normal operation of frozen block impact.
Automatic auxiliary electrical heating function
The automatic soil heating function of system disposition, namely every day sunset two little up to the second day detection of control system before 8 soil moisture lower than design temperature t2, as 12 DEG C, then automatically start electric heater and temperature-difference circulation pump, by hot water circuit in water tank to pipeline with heat exchange in soil.When control system detect soil moisture T2 rise to design temperature time, can automatically stop electric heater and temperature-difference circulation pump, the soil moisture so repeatedly can be kept constant.
Superconduction function
The medium that heat collecting and circulating system adopts is inorganic superconducting medium or water.Good heat conductivity, antifreeze dedicated medium, heat exchange property is high especially simultaneously to play good antifreezing effect in the winter of cold.
Timing cycle handoff functionality
As Fig. 4, in the second way of example, system four magnetic valves, four magnetic valves are respectively main solenoid valve P1, P2 and pilot solenoid valve H1, H2, main solenoid valve P1 and P2 opening and closing simultaneously; Pilot solenoid valve H1 and H2 opening and closing simultaneously, P and H switches once for every 1 hour, realizes the commutation of hot water in heat exchange coil, ensures that the ground temperature in booth is balanced.
Further, can also outside the pipeline that all outsides are exposed the insulation material of coated expanded material, form heat-insulation layer, prevent scattering and disappearing of heat.
Concrete transformation process is as follows:
1, floor heating dedicated pipe is arranged according to S, then according to the mode shown in Fig. 2, equipment is in place, in underground pipe wherein, be filled with antifreeze heat transfer medium or water.
2, when sun intensity heat do not reach nursery requirement time, adopt motor heat or combustion engine to carry out auxiliary heating, the hot water in water tank 3 is heated to soil by radiator coil tube again, realizes ground temperature heating.
5, booth construction is generally south-north direction, and solar energy heat collection pipe is placed on booth both sides, and distance nursery pond is very near, does not affect plastic tent heating daylighting, is convenient to install and safeguard.
Except the technical characteristic described in description, be the known technology of those skilled in the art.
Claims (8)
1. the solar heating system heated for agricultural greenhouse ground temperature, comprise booth, solar energy heat collection pipe (2), water tank (3), radiator coil tube (1) and temperature-difference circulation pump (4), described solar energy heat collection pipe connects water tank, it is characterized in that, described radiator coil tube is embedded in the soil in greenhouse, described radiator coil tube is connected by pipeline with between water tank, be filled with heat-conducting medium between described radiator coil tube and water tank, in the pipeline between described radiator coil tube and water tank, be provided with temperature-difference circulation pump; Meanwhile,
First temperature sensor (T1) is set in water tank;
The second temperature sensor (T2) is provided with in the soil at radiator coil tube place;
Three-temperature sensor (T3) is installed in described pipeline;
And above-mentioned three sensors and temperature-difference circulation pump are electrically connected to the signal output port of controller respectively.
2. a kind of solar heating system heated for agricultural greenhouse ground temperature according to claim 1, is characterized in that, in water tank, be provided with assisted heating device.
3. a kind of solar heating system heated for agricultural greenhouse ground temperature according to claim 2, is characterized in that, described assisted heating device is the one in electric heating tube assisted heating device or gas furnace.
4. a kind of solar heating system heated for agricultural greenhouse ground temperature according to claim 1 and 2, it is characterized in that, also comprise four magnetic valves, four magnetic valves are respectively the first magnetic valve (P1), the second magnetic valve (P2), the first pilot solenoid valve (H1) and the second pilot solenoid valve (H2), wherein, first magnetic valve (P1), the second magnetic valve (P2) be serially connected in respectively pipeline into and out of end, simultaneously open and close; Described first pilot solenoid valve (H1) and the second pilot solenoid valve (H2) are serially connected in an arm respectively, simultaneously open and close, and described arm two ends respectively connecting pipe into and out of end.
5. a kind of solar heating system heated for agricultural greenhouse ground temperature according to claim 1, is characterized in that, described radiator coil tube adopts the roundabout layout of S shape.
6. a kind of solar heating system heated for agricultural greenhouse ground temperature according to claim 1, it is characterized in that, described solar energy heat collection pipe is placed on booth both sides.
7. a kind of solar heating system heated for agricultural greenhouse ground temperature according to claim 1, is characterized in that, the planting district of described radiator coil tube successively in canopy.
8. a kind of solar heating system heated for agricultural greenhouse ground temperature according to claim 1, is characterized in that, described heat-conducting medium is circulation anti-freezing medium or water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520547348.2U CN204830527U (en) | 2015-07-24 | 2015-07-24 | A solar energy heating system for green house ground temperature heats |
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| CN201520547348.2U CN204830527U (en) | 2015-07-24 | 2015-07-24 | A solar energy heating system for green house ground temperature heats |
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| CN204830527U true CN204830527U (en) | 2015-12-02 |
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| CN201520547348.2U Expired - Fee Related CN204830527U (en) | 2015-07-24 | 2015-07-24 | A solar energy heating system for green house ground temperature heats |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105766125A (en) * | 2016-05-04 | 2016-07-20 | 亿利生态修复股份有限公司 | Saline and alkaline land landscaping system and method |
| CN107466632A (en) * | 2017-08-08 | 2017-12-15 | 南农新农村发展研究院句容有限公司 | A kind of heating apparatus of facility cultivation dragon fruit |
| CN108849124A (en) * | 2018-06-21 | 2018-11-23 | 扬州福瑞达碳纤维地暖有限公司 | A kind of agricultural greenhouse greenhouse electricity consumption heating winter-proof incubation system |
| CN109744011A (en) * | 2019-01-30 | 2019-05-14 | 中国农业科学院农业资源与农业区划研究所 | A kind of system and method promoting ground temperature using solar energy |
| CN109892144A (en) * | 2019-04-16 | 2019-06-18 | 乌海昊华高科节能技术有限公司 | A kind of solar greenhouse soil heat supply heating device |
| CN113110639A (en) * | 2021-04-22 | 2021-07-13 | 陕西地建土地工程技术研究院有限责任公司 | All-weather temperature control system for reconstructing soil body |
| CN113767789A (en) * | 2021-07-07 | 2021-12-10 | 孙景春 | Ground heating cold shed for melon planting and melon ground heating cold shed planting method |
-
2015
- 2015-07-24 CN CN201520547348.2U patent/CN204830527U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105766125A (en) * | 2016-05-04 | 2016-07-20 | 亿利生态修复股份有限公司 | Saline and alkaline land landscaping system and method |
| CN107466632A (en) * | 2017-08-08 | 2017-12-15 | 南农新农村发展研究院句容有限公司 | A kind of heating apparatus of facility cultivation dragon fruit |
| CN108849124A (en) * | 2018-06-21 | 2018-11-23 | 扬州福瑞达碳纤维地暖有限公司 | A kind of agricultural greenhouse greenhouse electricity consumption heating winter-proof incubation system |
| CN109744011A (en) * | 2019-01-30 | 2019-05-14 | 中国农业科学院农业资源与农业区划研究所 | A kind of system and method promoting ground temperature using solar energy |
| CN109892144A (en) * | 2019-04-16 | 2019-06-18 | 乌海昊华高科节能技术有限公司 | A kind of solar greenhouse soil heat supply heating device |
| CN113110639A (en) * | 2021-04-22 | 2021-07-13 | 陕西地建土地工程技术研究院有限责任公司 | All-weather temperature control system for reconstructing soil body |
| CN113767789A (en) * | 2021-07-07 | 2021-12-10 | 孙景春 | Ground heating cold shed for melon planting and melon ground heating cold shed planting method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 Termination date: 20180724 |
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| CF01 | Termination of patent right due to non-payment of annual fee |