CN201299027Y - Heat radiation system applied for low temperature heat source in greenhouse - Google Patents
Heat radiation system applied for low temperature heat source in greenhouse Download PDFInfo
- Publication number
- CN201299027Y CN201299027Y CNU2008201102182U CN200820110218U CN201299027Y CN 201299027 Y CN201299027 Y CN 201299027Y CN U2008201102182 U CNU2008201102182 U CN U2008201102182U CN 200820110218 U CN200820110218 U CN 200820110218U CN 201299027 Y CN201299027 Y CN 201299027Y
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- heat
- temperature
- ground
- greenhouse
- heat source
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/14—Measures for saving energy, e.g. in green houses
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Abstract
The utility model discloses a heat radiation system applied for low temperature heat source in a greenhouse, which is characterized in that the system comprises a ground heat radiation device and a low temperature heat source shunt device; wherein the ground heat radiation device is composed of a plurality of parallel heat exchange tubes which are arranged under the ground; the heat source is shunted to each heat exchange tube by the low temperature heat source shunt device; and the ground heat radiation device adjusts the temperature of the greenhouse by a temperature control device; the system also comprises a canopy heat radiation device which is formed by connection of a fan coil to an air channel with an air outlet hole. The heat radiation system is applicable for low temperature heat source, the ground heat radiation device can adjust and control the temperature, and the canopy heat radiation device can be opened according to the height of the crop; by adopting the system, the root and canopy of the crop in the greenhouse can be heated, therefore the temperature of the required heat source is low, the energy is saved, and the controllability is good.
Description
Technical field
The utility model relates to cooling system in a kind of greenhouse, and specifically a kind of cooling system that designs at low-temperature heat source specially belongs to the agricultural engineering technology field.
Background technology
Exhausted day by day along with fossil fuels such as coals, and the aggravation of environmental pollution, global warming problem, the research power-saving technology has become the important topic of world's common concern.Industrialized agriculture has obtained significant progress as a high-efficiency agriculture industry over nearly 30 years, but because its dependence to the energy is bigger, has become the main bottleneck of restriction industry development.External studies show that every production 10kg cucumber will consume 5L gasoline, and is higher 50～60 times than grain-production energy consumption.China is an industrialized agriculture big country, have 253.7 ten thousand hectares of facility cultivation areas at present, occupy first place in the world, traditional greenhouse heating generally adopts the radiating mode of coal-burning boiler and radiator, the controllability of coal-burning boiler is relatively poor, temperature in the radiator generally will reach more than 90 ℃, and be to be heated in whole greenhouse, because the northern area of China extreme temperature in winter is lower, the annual coal consumption of large-scale attached-greenhouse per hectare is in 700～1800 tons (North China), 1800～3000 tons (northeast), account for the 30%-50% of its operation totle drilling cost, energy waste is big.Therefore, in the greenhouse, be badly in need of the new energy-conservation technology of utilizing of research, reduce the consumption of the energy.
The utility model content
In order to overcome the big problem of above-mentioned high temperature heat source energy consumption, the utility model proposes heat abstractor in a kind of greenhouse that is applicable to low-temperature heat source.
Technical solution adopted in the utility model is:
Cooling system in a kind of greenhouse that is applicable to low-temperature heat source, it is characterized in that, comprise a ground heat abstractor, a low-temperature heat source part flow arrangement, described ground heat abstractor is made up of the heat exchanger tube of some parallel connections, heat exchanger tube places under the face of land, by the low-temperature heat source part flow arrangement thermal source is diverted to each heat exchanger tube.
Above-mentioned device also comprises a canopy heat abstractor, and described canopy heat abstractor is connected to the air channel that has exhaust vent by fan coil and constitutes.
The main pipe rail that connects thermal source is divided into the two-way circulation after entering the greenhouse, leads up to ground heat abstractor circulation, has connect water collecting and diversifying device on the heat exchanger tube on ground, and thermal source is diverted to each heat exchanger tube, and gets back to main pipe rail after the heat exchange of ground.One the tunnel is by the circulation of canopy heat abstractor, gets back to total pipeline behind the fan coil heat exchange of canopy, and the canopy heat abstractor is outwards to dry by fan coil, and coil pipe is to be connected with the canopy heat exchanger tube.
Temperature control device adopts proportion control in the heat abstractor of described ground, realizes the control to the flow of water in each parallel pipeline, and the flow size of water is to control by temperature in the greenhouse in the heat exchanger tube.Specifically be to transfer detected temperature signal to the signal of telecommunication, and, control the flow of water in the heat exchanger tube with this by the aperture that the power of the signal of telecommunication is come control valve by sensor.
Described ground heat abstractor also comprises thermal insulation layer and heat dissipating layer, and the compound heat-insulation layer of 20mm is laid in the heat exchange pipeline below, repaves the heat dissipating layer of 50mm behind the laying heat exchange pipeline.
The canopy heat radiation of described greenhouse is to utilize blower fan to pass through fan coil outwards to dry, coil pipe in the fan coil is walked cold water or hot water, what then produce by boasting by blower fan is exactly cold wind or hot blast, fan coil is arranged on the greenhouse wall, there is certain distance in the air channel far from ground, the peripheral hardware thermal insulation layer divides air outlet to have two rows to be symmetric arrangement.
Advantage of the present utility model is: this heat abstractor is fit to low-temperature heat source, and complete alternative tradition needs the radiator radiating mode of high temperature heat source, and is not only energy-conservation but also can satisfy the demand of plant growth.This heat abstractor ground and canopy are separately control, the loop of two parallel connections, and wherein ground temperature is to control by the flow of water, can be according to the different adjustment of chamber planting crop different ground temperature, the unlatching that canopy can come according to the height of crop, controllability is very strong.After adopting this heat abstractor, the water temperature in the pipe only root and the canopy of crop in the greenhouse are heated, and controllability is better between 45 ℃ to 55 ℃.
Description of drawings
Fig. 1 is a heat abstractor schematic diagram in the greenhouse of the utility model low-temperature heat source;
Fig. 2 is the canopy heat abstractor schematic diagram of heat abstractor in the greenhouse of the utility model low-temperature heat source;
Fig. 3 is the ground radiator structure stripping face figure of heat abstractor in the greenhouse of the utility model low-temperature heat source;
Fig. 4 is the water collecting and diversifying device schematic diagram of heat abstractor in the greenhouse of the utility model low-temperature heat source.
Description of reference numerals: 1. canopy heat radiation; 2. ground heat radiation; 3. fan coil; 4. air outlet; 5. air channel; 6. compound heat-insulation layer; 7. heat dissipating layer; 8. screed-coat; 9. surface layer; 10. heat exchanger tube; 11. water collecting and diversifying device; 12. water inlet pipe; 13. return pipe; 14. vent valve.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
As shown in Figure 1, the utility model provides heat abstractor in a kind of greenhouse that is applicable to low-temperature heat source, comprises ground heat abstractor and canopy heat abstractor.
As shown in Figure 2, further shown the canopy heat abstractor, the canopy heat radiation is to utilize blower fan to pass through fan coil 3 outside blowing hot-airs, and fan coil 3 is arranged in the greenhouse north wall, and air channel 5 is apart from ground 3.0m, and outer bread one deck thermal insulation layer, air outlet 4 have two rows to be symmetric arrangement.
As shown in Figure 3, be ground construction for heat radiating device figure, the ground heat abstractor is to lay the thick compound heat-insulation layer 6 of one deck 20mm earlier on ground, arrange heat exchanger tube 10 on thermal insulation layer, the diameter of heat exchanger tube is 16mm, adopts pvc pipe as the radiation heat transfer pipeline, area according to the greenhouse has 2 groups of heat exchange pipelines, form by four parallel heat exchanging pipes for every group, repave the heat dissipating layer 7 of 50mm behind the tubing, on heat dissipating layer, lay screed-coat 8 and surface layer 9 successively.Screed-coat is in order to make the surface more smooth, and surface layer generally is for attractive in appearance and water-permeating floor tile that lay.Each group heat exchanger tube in the heat abstractor of ground is connected with a water collecting and diversifying device water inlet pipe and water outlet pipe separately respectively with thermal source, the structure of water collecting and diversifying device as shown in Figure 4, water collecting and diversifying device is made of copper, pipeline is divided into four and advances four and go out, the diameter of water inlet pipe 12 and outlet pipe 13 is 16mm, and tube pitch is 100mm, is provided with two vent valves 14 on its water inlet manifold and outlet pipe, to its objective is in order making to be full of water in the circulating water pipeline, to make the transmission of temperature more even.
The utility model can also be regulated and control temperature in the greenhouse by a temperature control device, specifically be to transfer detected temperature signal to the signal of telecommunication by sensor, and, control the flow of water in the heat exchanger tube with this by the aperture that the power of the signal of telecommunication is come control valve.Temperature control device adopts proportion control, realizes the control to the flow of water in each parallel pipeline.
The radiator structure of " ground-canopy ".Be heated to be the master with ground, canopy has heated complementary effect, and as under extreme cold weather condition, both's usefulness can guarantee the growth of crop.
Claims (7)
1, cooling system in a kind of greenhouse that is applicable to low-temperature heat source, it is characterized in that, comprise a ground heat abstractor, a low-temperature heat source part flow arrangement, described ground heat abstractor is made up of the heat exchanger tube of some parallel connections, heat exchanger tube places under the face of land, by the low-temperature heat source part flow arrangement thermal source is diverted to each heat exchanger tube.
2, the system as claimed in claim 1 is characterized in that, also comprises a canopy heat abstractor, and described canopy heat abstractor is connected to the air channel that has exhaust vent by fan coil and constitutes.
3, the system as claimed in claim 1 is characterized in that, also comprises a temperature control device, and described temperature control device adopts sensor to constitute.
4, the system as claimed in claim 1 is characterized in that, described ground heat abstractor also comprises thermal insulation layer and heat dissipating layer.
5, the system as claimed in claim 1 is characterized in that, described low-temperature heat source part flow arrangement is the water collecting and diversifying device that is made of copper, and described water collecting and diversifying device links to each other the water inlet pipe and water outlet pipe of each heat exchanger tube respectively with total Inlet and outlet water joint of thermal source.
6, system as claimed in claim 6 is characterized in that, is respectively equipped with vent valve on described water collecting and diversifying device and the inlet and outlet piping that thermal source is connected.
7, the system as claimed in claim 1 is characterized in that, the heat exchanger tube in the heat abstractor of described ground adopts pvc pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201102182U CN201299027Y (en) | 2008-08-26 | 2008-08-26 | Heat radiation system applied for low temperature heat source in greenhouse |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201102182U CN201299027Y (en) | 2008-08-26 | 2008-08-26 | Heat radiation system applied for low temperature heat source in greenhouse |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201299027Y true CN201299027Y (en) | 2009-09-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201102182U Expired - Fee Related CN201299027Y (en) | 2008-08-26 | 2008-08-26 | Heat radiation system applied for low temperature heat source in greenhouse |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201299027Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103858707A (en) * | 2012-12-14 | 2014-06-18 | 苟永平 | Clean and efficient earthing cultivation edible fungus bed thermoregulation facility |
| CN107896747A (en) * | 2017-12-25 | 2018-04-13 | 中国农业科学院农业环境与可持续发展研究所 | Heat-energy utilizing device and method in heliogreenhouse |
-
2008
- 2008-08-26 CN CNU2008201102182U patent/CN201299027Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103858707A (en) * | 2012-12-14 | 2014-06-18 | 苟永平 | Clean and efficient earthing cultivation edible fungus bed thermoregulation facility |
| CN107896747A (en) * | 2017-12-25 | 2018-04-13 | 中国农业科学院农业环境与可持续发展研究所 | Heat-energy utilizing device and method in heliogreenhouse |
| CN107896747B (en) * | 2017-12-25 | 2024-06-11 | 中国农业科学院农业环境与可持续发展研究所 | Device and method for utilizing heat energy in sunlight greenhouse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20100826 |