CN205658103U - Wet curtain fan forced draft circulation cooling system - Google Patents
Wet curtain fan forced draft circulation cooling system Download PDFInfo
- Publication number
- CN205658103U CN205658103U CN201620535048.7U CN201620535048U CN205658103U CN 205658103 U CN205658103 U CN 205658103U CN 201620535048 U CN201620535048 U CN 201620535048U CN 205658103 U CN205658103 U CN 205658103U
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- CN
- China
- Prior art keywords
- facade
- greenhouse
- wet curtain
- negative pressure
- fan
- 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.)
- Withdrawn - After Issue
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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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Abstract
The utility model belongs to the technical field of the greenhouse, in particular to wet curtain fan forced draft circulation cooling system. Negative pressure chamber (6) of this system make up in the north of the greenhouse, wet curtain device (8) set up on negative pressure chamber's (6) northern facade, southern side in negative pressure chamber (6) is provided with plenum chamber (9), axial fan (11) set up on the northern facade of plenum chamber (9), facade sidespin window (7) is arranged on greenhouse north facade (5), the lower part in greenhouse north facade (5) is provided with air outlet (12) that are linked together with plenum chamber 9, air outlet (12) are connected with air pipe's (1) one end, and the other end of air pipe (1) is provided with air pipe tip circulation fan (2), the inside truss below in greenhouse is provided with upper portion circulation fan (3). The utility model discloses can make warm indoor temperature distribute evenly, be favorable to crop growth, can effectively reduce operating power consumption when guaranteeing the cooling effect.
Description
Technical field
This utility model belongs to greenhouse technology field, particularly to a kind of wet curtain fan positive draft circulation temperature lowering system.
Background technology
Owing to greenhouse has " greenhouse effect " of uniqueness, summer has bigger thermic load than common building.Naturally logical
Wind cannot meet the hot weather of cooling demand, and except opening outside curtain system, evaporative cooling is modern greenhouse production in summer environment
Regulation and control are most widely used and one of effective falling temperature technique.Wherein, the use of wet curtain fan negative pressure cooling system is the most general
Time.
But this system is when running, thermograde can be formed in the direction of the air flow, relatively low near the position temperature of wet curtain, lean on
The position temperature of nearly blower fan is of a relatively high, and the distance between wet curtain face and blower fan face has certain restriction.For Fructus Cucumidis sativi, Fructus Lycopersici esculenti
Etc. hanging the attached-greenhouse of climing crop Efficient Cultivation, its cooling-down effect also suffers from the impact that plant branch and leaf block, and causes effectively dropping
Temperature differs greatly apart from less and warm indoor temperature distribution, ultimately results in plant growth situation inconsistent, increases cultivation management difficult
Degree.Being limited by wet curtain arrangement areas, in current greenhouse, the conventional wet curtain fan system arranged the most all is difficult to fully meet fall
Temperature demand.Under the conditions of Central China and north high temperature hot climate, it is often necessary to this cooling system of 24 hour operation so that greenhouse
Summer operation energy consumption remains high.
Summary of the invention
The purpose of this utility model is to provide a kind of wet curtain fan positive draft circulation temperature lowering system, and this system will be through overly moist
The fresh air outside of curtain cooling is sent in greenhouse with the form of forced draft by cultivation bed bottom ventilation ducts, and the most right
Crop root zone lowers the temperature；Solve tradition wet curtain blower negative pressure cooling system and there is asking of thermograde in the direction of the air flow
Topic.Owing to this system uses the preferential local cooling's mode ensureing the cooling of root district, therefore under thermal extremes weather conditions
Also the normal growth of crop can be ensured.The design of combining environmental control system and greenhouse internal circulation system and mixed wind system makes system
Can underload even intermitten service, can effectively reduce operation energy consumption while cooling-down effect ensureing.
To achieve these goals, this utility model provides following technical scheme:
This utility model provides a kind of wet curtain fan positive draft circulation temperature lowering system, and this system includes ventilation shaft 1, leads to
Wind pipeline end loops flow fan 2, top loop flow fan 3, top window 4, negative pressure chamber 6, facade sidespin window 7, wet curtain device 8, send
Air compartment 9, wet curtain pond 10 and axial flow blower 11；
It is provided with multiple top equably in top of greenhouse and windows 4；
Described negative pressure chamber 6 builds in north side, greenhouse, identical with greenhouse length, three facades and one top tilted with
North, greenhouse facade 5 encloses and forms, and wherein the height of the northern facade of negative pressure chamber 6 is less than the height of north, greenhouse facade 5；
Described wet curtain device 8 is arranged on the northern facade of negative pressure chamber 6；
Underground in negative pressure chamber 6, is provided with wet curtain pond 10；
Southern side in negative pressure chamber 6, is provided with the plenum chamber 9 built mutually with facade 5 bottom, north, greenhouse；
Multiple axial flow blowers 11 are arranged equally spaced on the northern facade of plenum chamber 9；
Multiple facade sidespin windows 7 are arranged on north, greenhouse facade 5, and facade sidespin window 7 is positioned at negative pressure chamber 6, plenum chamber 9
Outside；
The bottom of north, greenhouse facade 5 is provided with multiple air outlet 12 being connected with plenum chamber 9；The position of air outlet 12 with
Cultivation bed 15 is spaced correspondence, i.e. every the corresponding air outlet 12 of a cultivation bed 15；Air outlet 12 and described ventilation shaft 1
One end connects, and the other end of described ventilation shaft 1 is provided with ventilation shaft end loops flow fan 2；
Described ventilation shaft 1 is arranged on bottom cultivation bed 15；The both sides of ventilation shaft 1 are provided with multiple pore equably
13；
Multiple top loop flow fan 3 it is provided with below the truss of described inside greenhouse.
Described top window 4 and facade sidespin window 7 be provided with control its open/close device.
Described wet curtain device 8, ventilation shaft end loops flow fan 2, top loop flow fan 3, axial flow blower 11 and control
Top 4 devices opened with facade sidespin window 7/close of windowing all are connected with automatic control system, according to setting value and actual rings
Border temperature automatically controls.
Described ventilation shaft 1 is arranged on the inside of the cultivation bed support 14 for supporting culture groove 15.
This wet curtain fan positive draft circulation temperature lowering system is applicable to the cooling of attached-greenhouse.
Compared with prior art, the beneficial effects of the utility model are:
1, this utility model utilizes ventilation shaft to carry out positive draft cooling, deposits without tradition wet curtain blower negative pressure cooling system
Temperature gradient explained, uniformity of temperature profile in whole greenhouse, be conducive to plant growth.
2, width design in greenhouse is no longer limited by tradition wet curtain blower negative pressure system effective temperature-reducing distance, Dan Dongwen
Room can design area bigger, be conducive to improving irrigation system utilization rate and land utilization ratio.
3, achieve the preferential cooling of crop root zone, reach the energy-conservation purpose of local cooling, improve cooling-down effect.In pole
End hot weather, even if total semen donors is not enough, remains to ensure the normal growth of crop.
4, temperature indoor circulation and the design of mixed wind system make system can underload even intermitten service, ensureing cooling-down effect
While also can effectively reduce operation energy consumption.
5, southern side, greenhouse is main sensitive surface, no longer installs blower fan, adds the effective illumination in greenhouse.
6, wet curtain face in negative pressure chamber north side have to be off place without door etc., and the wet curtain length that can arrange is longer, and whole system produces cold
It is bigger that amount compares tradition wet curtain blower negative pressure cooling system.
7, the existence of negative pressure chamber makes the better heat preservation of greenhouse north wall in winter, and negative pressure chamber can be used as storage in the winter time
Between.
Accompanying drawing explanation
Fig. 1 is the schematic three dimensional views of the first temperature-fall period of the present utility model；
Fig. 2 is the schematic three dimensional views of the second temperature-fall period of the present utility model；
Fig. 3 is the schematic three dimensional views of the 3rd temperature-fall period of the present utility model；
Fig. 4 is the plane graph of this utility model wet curtain fan positive draft circulation temperature lowering system；
Fig. 5 is the sectional view of this utility model wet curtain fan positive draft circulation temperature lowering system.
Reference therein is:
1 ventilation shaft
2 ventilation shaft end loops flow fans
3 top loop flow fans
Window in 4 tops
5 north, greenhouse facades
6 negative pressure chamber
7 facade sidespin windows
8 wet curtain devices
9 plenum chambers
10 wet curtain ponds
11 axial flow blowers
12 air outlets
13 pores
14 cultivation bed supports
15 cultivation beds
Detailed description of the invention
Below in conjunction with embodiment, this utility model is further described.
As shown in Figure 4 and Figure 5, wet curtain fan positive draft circulation temperature lowering system of the present utility model, including ventilation shaft
1, ventilation shaft end loops flow fan 2, top loop flow fan 3, top window 4, negative pressure chamber 6, facade sidespin window 7, wet curtain device
8, plenum chamber 9, wet curtain pond 10 and axial flow blower 11.
It is provided with multiple top equably in top of greenhouse and windows 4.
Described negative pressure chamber 6 builds in north side, greenhouse, identical with greenhouse length, three facades and one top tilted with
North, greenhouse facade 5 encloses and forms, and wherein the height of the northern facade of negative pressure chamber 6 is less than the height of north, greenhouse facade 5.
Described wet curtain device 8 is arranged on the northern facade of negative pressure chamber 6.
Underground in negative pressure chamber 6, is provided with wet curtain pond 10.
Southern side in negative pressure chamber 6, is provided with the plenum chamber 9 built mutually with facade 5 bottom, north, greenhouse.
Multiple axial flow blowers 11 are arranged equally spaced on the northern facade of plenum chamber 9.
Multiple facade sidespin windows 7 are arranged on north, greenhouse facade 5, and facade sidespin window 7 is positioned at negative pressure chamber 6, plenum chamber 9
Outside.
The bottom of north, greenhouse facade 5 is provided with multiple air outlet 12 being connected with plenum chamber 9；The position of air outlet 12 with
Cultivation bed 15 is spaced correspondence, i.e. every the corresponding air outlet 12 of one or several cultivation bed 15；Air outlet 12 and described ventilation
One end of pipeline 1 connects, and the other end of described ventilation shaft 1 is provided with ventilation shaft end loops flow fan 2.
Described ventilation shaft 1 is arranged on bottom cultivation bed 15, and the both sides of ventilation shaft 1 are provided with multiple pore equably
13。
As cultivation bed uses support mode to support, then within ventilation shaft 1 is positioned at cultivation bed support 14.Pass through ventilation shaft
Under cultivation bed, interval is arranged, is not to have ventilation shaft 1 under each cultivation bed, but a cultivation bed has ventilation shaft
1, adjacent cultivation bed does not then have ventilation shaft 1.
Multiple top loop flow fan 3 it is provided with below the truss of described inside greenhouse.
This wet curtain fan positive draft circulation temperature lowering system is applicable to the cooling of attached-greenhouse.
Described top window 4 and facade sidespin window 7 be provided with control its open/close device.
Above-mentioned wet curtain device 8, ventilation shaft end loops flow fan 2, top loop flow fan 3, axial flow blower 11 and control
Top 4 devices opened with facade sidespin window 7/close of windowing all are connected with automatic control system, according to setting value and actual rings
Border temperature automatically controls.
In automatic control system, need to set three temperature values: ceiling temperature, node temperature and ideal temperature.On described
The temperature value of limit temperature be in greenhouse long-term cropping exceed this temperature crop just cannot the limiting temperature of normal growth.Described node
The temperature value of temperature be in greenhouse long-term cropping in the upper limit of residing growth stage Suitable ranges.The temperature of described ideal temperature
Angle value be in greenhouse long-term cropping in the intermediate value of residing growth stage Suitable ranges.
This utility model provides a kind of wet curtain fan positive draft circulating section cool-down method, and the method includes carrying out successively
The first temperature-fall period, the second temperature-fall period and the 3rd temperature-fall period；
A, when temperature indoor temperature reaches default ceiling temperature, enter the first temperature-fall period, as shown in Figure 1:
Open top part windows 4, closes facade sidespin window and windows 7, wet curtain device 8, axial flow blower 11 and ventilation shaft end
Circulation fan 2 brings into operation；Now, in negative pressure chamber 6, form negative pressure, force outdoor air to flow through the moistening porous of wet curtain device 8
Surface enters negative pressure chamber 6；Cold air after wet curtain device 8 is lowered the temperature is by axial flow blower 11 suction plenum chamber 9, by air outlet 12
Send into cultivation bed 15 bottom ventilation ducts 1；Cold air is flowed out by the pore 13 on ventilation shaft 1, first carries out crop root zone
Local cooling, is then spread to surrounding by ground, and hot-air rises 4 discharges of windowing from top；
B, when at a temperature of be down to node temperature time, enter the second temperature-fall period, as shown in Figure 2:
Facade sidespin window 7 is opened, and temperature indoor temperature often declines 1 DEG C, and facade sidespin window 7 continues on greater angle, facade
Sidespin window 7 opening angle α, 0 ° < α < 90 °；Air in greenhouse is partially into after negative pressure chamber 6 mixes with fresh cold air again
In entrance greenhouse；
C, when temperature indoor temperature be down to the ideal temperature preset time, enter the 3rd temperature-fall period, as shown in Figure 3:
Close top and window 4, facade sidespin window 7 unlatching in 90 °, open top loop flow fan 3, wet curtain device 8 stops fortune
OK；Now, owing to negative pressure chamber 6 communicates with greenhouse, negative pressure disappears, and outdoor air enters negative pressure chamber 6 through wet curtain device 8 no longer in a large number
In, air relies on axial flow blower 11, ventilation shaft end loops flow fan 2 and top loop flow fan 3 to enter in negative pressure chamber 6 with greenhouse
Row circulation, it is ensured that in greenhouse, each several part homogeneous temperature is consistent；When temperature indoor temperature exceedes ceiling temperature once again, it is again introduced into the
One temperature-fall period, so circulates.
Claims (5)
1. a wet curtain fan positive draft circulation temperature lowering system, it is characterised in that: this system includes ventilation shaft (1), ventilates
Pipe end circulation fan (2), top loop flow fan (3), top are windowed (4), negative pressure chamber (6), facade sidespin window (7), wet curtain
Device (8), plenum chamber (9), wet curtain pond (10) and axial flow blower (11)；
It is provided with multiple top equably in top of greenhouse and windows (4)；
Described negative pressure chamber (6) builds in north side, greenhouse, identical with greenhouse length, by three facades and a top tilted and temperature
North, room facade (5) encloses and forms, and wherein the height of the northern facade of negative pressure chamber (6) is less than the height in north, greenhouse facade (5)；
Described wet curtain device (8) is arranged on the northern facade of negative pressure chamber (6)；
Underground in negative pressure chamber (6), is provided with wet curtain pond (10)；
Southern side in negative pressure chamber (6), is provided with the plenum chamber (9) built mutually with facade (5) bottom, north, greenhouse；
Multiple axial flow blowers (11) are arranged equally spaced on the northern facade of plenum chamber (9)；
Multiple facades sidespin window (7) are arranged on north, greenhouse facade (5), and facade sidespin window (7) is positioned at negative pressure chamber (6), air-supply
The outside of room (9)；
The bottom in north, greenhouse facade (5) is provided with multiple air outlet (12) being connected with plenum chamber (9)；The position of air outlet (12)
Put corresponding with cultivation bed (15) interval, i.e. every the corresponding air outlet (12) of one or several cultivation bed (15)；Air outlet
(12) one end with described ventilation shaft (1) is connected, and the other end of described ventilation shaft (1) is provided with ventilation shaft end circulation
Blower fan (2)；
Described ventilation shaft (1) is arranged on cultivation bed (15) bottom；The both sides of ventilation shaft (1) are provided with multiple pore equably
(13)；
Multiple top loop flow fan (3) it is provided with below the truss of described inside greenhouse.
Wet curtain fan positive draft circulation temperature lowering system the most according to claim 1, it is characterised in that: window in described top
(4) it is provided with controls its device opened/close with facade sidespin window (7).
Wet curtain fan positive draft circulation temperature lowering system the most according to claim 2, it is characterised in that: described wet curtain device
(8), ventilation shaft end loops flow fan (2), top loop flow fan (3), axial flow blower (11) and control top window (4) and
The device that facade sidespin window (7) is opened/closed all is connected with automatic control system, carries out according to setting value and actual environment temperature
Automatically control.
Wet curtain fan positive draft circulation temperature lowering system the most according to claim 1, it is characterised in that: described ventilation shaft
(1) inside of the cultivation bed support (14) for supporting culture groove (15) it is arranged on.
Wet curtain fan positive draft circulation temperature lowering system the most according to claim 1, it is characterised in that: this wet curtain fan is just
Pressure circulation cooling system is applicable to the cooling of attached-greenhouse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620535048.7U CN205658103U (en) | 2016-06-02 | 2016-06-02 | Wet curtain fan forced draft circulation cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620535048.7U CN205658103U (en) | 2016-06-02 | 2016-06-02 | Wet curtain fan forced draft circulation cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205658103U true CN205658103U (en) | 2016-10-26 |
Family
ID=57158777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620535048.7U Withdrawn - After Issue CN205658103U (en) | 2016-06-02 | 2016-06-02 | Wet curtain fan forced draft circulation cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205658103U (en) |
Cited By (2)
| 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 |
| CN106888865A (en) * | 2017-04-19 | 2017-06-27 | 王承辉 | The heat produced using frequency converter or inverter carries out the device of warmhouse booth plantation |
-
2016
- 2016-06-02 CN CN201620535048.7U patent/CN205658103U/en not_active Withdrawn - After Issue
Cited By (3)
| 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 |
| 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 |
| CN106888865A (en) * | 2017-04-19 | 2017-06-27 | 王承辉 | The heat produced using frequency converter or inverter carries out the device of warmhouse booth plantation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161026 Effective date of abandoning: 20181116 |
|
| AV01 | Patent right actively abandoned |