CN103314810A - Wet curtain fan circulating ventilation cooling system of solar greenhouse - Google Patents
Wet curtain fan circulating ventilation cooling system of solar greenhouse Download PDFInfo
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- CN103314810A CN103314810A CN2013102318156A CN201310231815A CN103314810A CN 103314810 A CN103314810 A CN 103314810A CN 2013102318156 A CN2013102318156 A CN 2013102318156A CN 201310231815 A CN201310231815 A CN 201310231815A CN 103314810 A CN103314810 A CN 103314810A
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- wet curtain
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- greenhouse
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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
Abstract
A wet curtain fan circulating ventilation cooling system of a solar greenhouse comprises a fan, a water pump and a water pool and is characterized in that a plurality of wet curtains are arranged on a rear wall of the solar greenhouse, the fan is opposite to the wet curtains, a certain distance is arranged between the fan and the wet curtains, the upper portions of the wet curtains are connected with one end of a water inlet branch pipe, the water inlet branch pipe is connected with a distributing pipe, and the distributing pipe is connected with the water pump through a water inlet pipe. The lower portions of the wet curtains are connected with a water outlet branch pipe, and the water outlet branch pipe is connected with a water outlet pipe through a water collecting pipe. The wet curtain fan circulating ventilation cooling system has the advantage that engineering material use amount is reduced, and cost is reduced. Due to the fact that in the cooling system, a wet curtain area value range is 0.75-2 m<2>, compared with the traditional method of arranging the wet curtains on a whole wall, arranging area of the wet curtains is reduced, water use amount of the system is saved in cooling system operation, and system operation cost and maintaining cost are reduced. By means of the layout that the wet curtains and cultivation crops are arranged in a staggered mode and the wet curtains are arranged among lines of the cultivation crops, air circulation in the solar greenhouse is promoted effectively, manual operation environment is effectively improved, and a cooling effect among lines of the crops is remarkable.
Description
Technical field
The present invention relates to a kind of wet curtain blower fan circulating ventilation cooling system of aeration-cooling technology, particularly a kind of greenhouse by solar heat of greenhouse by solar heat.
Background technology
At present, greenhouse by solar heat is applied to the production of surviving the winter of the facilities vegetable in winter more, and in summer, because the restriction of the aspects such as the structure of greenhouse by solar heat and cladding material, the environment conditioning of greenhouse by solar heat self is limited in one's ability, only is difficult to reach the growth needs of crop by gravity-flow ventilation cooling and the cooling of sheltering from heat or light, indoor temperature even can reach 40 ℃, very easily form hot environment, be unfavorable for plant growth and manual work, cause most greenhouse by solar heats idle in summer.Therefore must adopt other cooling measures, at present aborning, the tradition greenhouse by solar heat adopts the equipment such as air-conditioning system, spraying cooling system to lower the temperature more, although reach certain cooling-down effect, but still there are many problems in this type of cooling installation: one, the cooling system cost is high, operation and maintenance cost is expensive, highly energy-consuming, water consumption is large etc.; Two, traditional cooling system has all increased whole indoor humidity greatly when reducing indoor temperature, gives the generation of damage by disease and insect in the greenhouse by solar heat and has popularly created favourable condition; And under the very large environment of humidity, be unfavorable for the healthy growth of crop.Therefore, in order to improve the summer culture environment of greenhouse by solar heat, improve the utilization ratio of greenhouse by solar heat, improve the economic benefit of greenhouse by solar heat, research and develop a kind of low cost, low power consuming, the wet curtain blower fan circulating ventilation cooling system of greenhouse by solar heat that cooling efficient is high extremely is necessary.
Summary of the invention
The purpose of this invention is to provide a kind of wet curtain blower fan circulating ventilation cooling system of greenhouse by solar heat, can promote the sunlight indoor air flows, promote air circulation between crop row, reduce the sunlight indoor environment temperature, improve crop quality, improve the manual work environment.
For achieving the above object, the present invention takes following technical scheme: system comprises blower fan, water pump, pond, it is characterized in that: at the wet curtain of the polylith that is staggered between wall installation and crop row behind the greenhouse by solar heat, blower fan is positioned at the opposite of wet curtain, and at a distance of certain distance, the top of wet curtain connects water inlet pipe one end, and water inlet pipe connects distributing pipe, and distributing pipe connects water pump by water inlet pipe; The bottom of wet curtain connects exit branch, and exit branch connects outlet pipe by collector pipe.
Above-mentioned wet curtain is shaped as rectangle, and length is 1.5m-3.0m, highly is 1.0m-1.5m.
Good effect of the present invention: one, the engineering material consumption of cooling system reduces, and has reduced cost, because the Curtain area span that wets in cooling system is at 1.5m
2~ 4.5m
2, with traditional comparing at the wet curtain of whole face wall body layout, saved the arrangement areas of wet curtain, in cooling system water consumption of saving system in service, reduced the maintenance cost of operating cost and the system of system.Two, in this system, adopt wet curtain installation site and raise crop staggered, place the layout between crop row, the more effective circulation that promotes the sunlight room air has effectively been improved the manual work environment, and cooling-down effect is obvious between crop row.Three, effectively reduce the indoor environment humidity that increases owing to cooling, be conducive to the generation of disease and pest control.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is that the A of Fig. 1 is to view.
Fig. 3 is the vertical view of Fig. 1.
Sequence number among the figure: blower fan 1, wet curtain 2, water inlet pipe 3, distributing pipe 4, water inlet pipe 5, water pump 6, pond 7, outlet pipe 8, collector pipe 9, exit branch 10.
Embodiment
See Fig. 1-3, concrete structure of the present invention is as follows: wall is installed the wet curtain of the wet curtain 2(of polylith and is adopted prior art behind greenhouse by solar heat), wet curtain 2 is shaped as rectangle, according to the greenhouse area definition: the span of wet curtain 2 length is between 1.5m-3.0m, and the span of height is between 1. 0m-1.5m.Determine according to greenhouse area and density of crop: the span at every wet curtain 2 intervals is at 1.5m-2.5m, wet curtain 2 installation sites and raise crop are staggered, place between crop row, blower fan 1 is positioned at the opposite of wet curtain 2, at a distance of certain distance, be fixedly mounted on the steel skeleton of front roof by front footing angle of inclination.The top of wet curtain 2 connects water inlet pipe 3 one ends, and water inlet pipe 3 connects distributing pipe 4, and distributing pipe 4 connects water pump 6 by water inlet pipe 5, and water pump 6 draws water from pond 7; The bottom of wet curtain 2 connects exit branch 10, and exit branch 10 connects outlet pipe 8 by collector pipe 9, and outlet pipe 8 connects pond 7.
Operation principle: open water pump 6, the water in pond 7 enters wet curtain 2 through water pump 6, water inlet pipe 5, distributing pipe 4, water inlet pipe 3, and slowly uniformly to wet curtain 2 flows, by exit branch 10, collector pipe 9, outlet pipe 8 flow into pond 7, meanwhile again, open blower fan 1, form convection current, make through wet curtain 2 wetting air and in the greenhouse, flow, reach the purpose of reduction greenhouse by solar heat interior environment temperature by the continuous circulation of this process.
Example:
1) ventilation in calculating greenhouse, select blower fan and number of units:
Q=3?600×V×L×H
Q is greenhouse ventilation amount (m in the formula
3/ h);
V is the mean wind speed (m/s) in the greenhouse, selects according to Different Crop, generally gets 1.5 m/s;
L is greenhouse by solar heat length (m);
H is flow section in the greenhouse (namely wet curtain air-flow pass through face) average height (m), and generally getting actual wet curtain top is H far from the height on ground.
Single Donges light greenhouse with Liao-Shen area: long 60m, wide 8m, shoulder height 2.8m rises 3.5m, and the H value is that 2.5m is example.Wherein cross the curtain wind speed and get 1.5m/s, indoor air velocity is got 0.5m/s, the total ventilation in greenhouse=3 600 * V * L * H=3600 * 0.5 * 60 * 2.5=270000 (m
3/ h)=75 (m
3/ s), according to the total ventilation in greenhouse, adopt 9FJ10.0(2.270m
3/ h) the blower fan of type then needs the blower fan number of units that configures: the 270000/23270=11.6(12 platform).
2) size and the quantity of the wet curtain of selection:
Tomato is adopted the cultivation of large ridge in the greenhouse by solar heat, 50 ridges altogether, and every ridge two row, 13 to 15 tomato plants of delegation adopt two ridges to share the mode of the wet curtain of one side, need to install the wet curtain of 50/2=25 face, then: according to the total ventilation 270000m in greenhouse
3/ h, total wet Curtain area=75/1.5=50 (m that greenhouse by solar heat need to configure
2), area=50/25=2 (m of the wet curtain of single face then
2) according to wet curtain length (1.5m ~ 3.0m) and height (span of 1.0m ~ 1.5m) is chosen long 2m, the wet curtain of high 1m }.
3) install referring to aforementioned content.
Claims (1)
1. the wet curtain blower fan circulating ventilation cooling system of a greenhouse by solar heat, comprise blower fan, water pump, pond, it is characterized in that: at the wet curtain of the polylith that is staggered between wall installation and crop row behind the greenhouse by solar heat, blower fan is positioned at the opposite of wet curtain, and at a distance of certain distance, the top of wet curtain connects water inlet pipe one end, and water inlet pipe connects distributing pipe, and distributing pipe connects water pump by water inlet pipe; The bottom of wet curtain connects exit branch, and exit branch connects outlet pipe by collector pipe.
2. the wet curtain blower fan circulating ventilation cooling system of greenhouse by solar heat according to claim 1, it is characterized in that: wet curtain is shaped as rectangle, and length is 1.5m-3.0m, highly is 1.0m-1.5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102318156A CN103314810A (en) | 2013-06-13 | 2013-06-13 | Wet curtain fan circulating ventilation cooling system of solar greenhouse |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102318156A CN103314810A (en) | 2013-06-13 | 2013-06-13 | Wet curtain fan circulating ventilation cooling system of solar greenhouse |
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| CN103314810A true CN103314810A (en) | 2013-09-25 |
Family
ID=49184100
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| CN2013102318156A Pending CN103314810A (en) | 2013-06-13 | 2013-06-13 | Wet curtain fan circulating ventilation cooling system of solar greenhouse |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105830819A (en) * | 2016-06-02 | 2016-08-10 | 北京中农富通园艺有限公司 | Wet screen-fan positive pressure ventilation cycle cooling system and segmental cooling method thereof |
| CN106718351A (en) * | 2015-11-23 | 2017-05-31 | 安徽皓天智能环境设备科技有限公司 | A kind of ventilation humidification system for greenhouse |
| CN107327903A (en) * | 2017-08-21 | 2017-11-07 | 中国农业大学 | A kind of greenhouse collection hold over system and its operation method |
| CN113623791A (en) * | 2021-08-17 | 2021-11-09 | 扬州市职业大学(扬州市广播电视大学) | Automatic cooling system |
| CN114830953A (en) * | 2022-03-25 | 2022-08-02 | 河南牧业经济学院 | Greenhouse wet curtain cooling system |
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| CN201550476U (en) * | 2009-11-13 | 2010-08-18 | 天津滨海国际花卉科技园区股份有限公司 | Water-curtain system of greenhouse secondary wastewater reuse |
| CN202276682U (en) * | 2011-10-08 | 2012-06-20 | 中国农业科学院农业环境与可持续发展研究所 | Water curtain heat collecting and releasing device suitable for greenhouses |
| CN202489020U (en) * | 2012-04-04 | 2012-10-17 | 陆培玉 | Greenhouse spray cooling system |
| CN102783385A (en) * | 2012-08-17 | 2012-11-21 | 沈阳农业大学 | Water curtain system of solar greenhouse |
| CN102835282A (en) * | 2011-06-21 | 2012-12-26 | 无锡南村花卉苗木专业合作社 | Water curtain fan cooling system for greenhouse |
-
2013
- 2013-06-13 CN CN2013102318156A patent/CN103314810A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201550476U (en) * | 2009-11-13 | 2010-08-18 | 天津滨海国际花卉科技园区股份有限公司 | Water-curtain system of greenhouse secondary wastewater reuse |
| CN102835282A (en) * | 2011-06-21 | 2012-12-26 | 无锡南村花卉苗木专业合作社 | Water curtain fan cooling system for greenhouse |
| CN202276682U (en) * | 2011-10-08 | 2012-06-20 | 中国农业科学院农业环境与可持续发展研究所 | Water curtain heat collecting and releasing device suitable for greenhouses |
| CN202489020U (en) * | 2012-04-04 | 2012-10-17 | 陆培玉 | Greenhouse spray cooling system |
| CN102783385A (en) * | 2012-08-17 | 2012-11-21 | 沈阳农业大学 | Water curtain system of solar greenhouse |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106718351A (en) * | 2015-11-23 | 2017-05-31 | 安徽皓天智能环境设备科技有限公司 | A kind of ventilation humidification system for greenhouse |
| CN105830819A (en) * | 2016-06-02 | 2016-08-10 | 北京中农富通园艺有限公司 | Wet screen-fan positive pressure ventilation cycle cooling system and segmental cooling method thereof |
| CN105830819B (en) * | 2016-06-02 | 2018-11-16 | 北京中农富通园艺有限公司 | A kind of wet curtain fan positive draft circulation temperature lowering system and its segmented cooling method |
| CN107327903A (en) * | 2017-08-21 | 2017-11-07 | 中国农业大学 | A kind of greenhouse collection hold over system and its operation method |
| CN113623791A (en) * | 2021-08-17 | 2021-11-09 | 扬州市职业大学(扬州市广播电视大学) | Automatic cooling system |
| CN114830953A (en) * | 2022-03-25 | 2022-08-02 | 河南牧业经济学院 | Greenhouse wet curtain cooling system |
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Application publication date: 20130925 |