CN105993418A - Ventilation and cooling system used for grains and ventilation and cooling method thereof - Google Patents
Ventilation and cooling system used for grains and ventilation and cooling method thereof Download PDFInfo
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- CN105993418A CN105993418A CN201610321201.0A CN201610321201A CN105993418A CN 105993418 A CN105993418 A CN 105993418A CN 201610321201 A CN201610321201 A CN 201610321201A CN 105993418 A CN105993418 A CN 105993418A
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- 238000009423 ventilation Methods 0.000 title claims abstract description 47
- 238000001816 cooling Methods 0.000 title claims abstract description 38
- 238000005273 aeration Methods 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 11
- 238000009736 wetting Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 6
- 230000005923 long-lasting effect Effects 0.000 description 5
- 210000005056 cell body Anatomy 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
- A01F25/14—Containers specially adapted for storing
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
- A01F25/16—Arrangements in forage silos
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
- A01F25/16—Arrangements in forage silos
- A01F25/22—Ventilating arrangements
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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
- Y02A40/51—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for storing agricultural or horticultural products
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- Storage Of Harvested Produce (AREA)
Abstract
The invention discloses a ventilation and cooling system used for grains and a ventilation and cooling method thereof. According to the invention, based on real-time detected temperatures and humidities of air and grain bulks, opening and closing of ventilation windows and ventilation openings of a granary are respectively controlled; and running/stopping and operation power of each fan are controlled. The ventilation and cooling system and the ventilation and cooling method can realize intermittent ventilation operation for the granary according to real-time detected internal and external situations of the granary, so long-time continuous operation of each fan is avoided; the energy consumption of each fan is reduced; meanwhile, the problem of serious water loss due to long-time continuous ventilation can be also avoided; and the advantages like good cooling effects and excellent moisture-preserving performance are achieved.
Description
Technical field
The open technical field relating to grain storage of the present invention, particularly relates to a kind of aeration cooling system for grain and aeration-cooling method thereof.
Background technology
At present, aeration-cooling is safely and effectively one of technical matters in grain storage management, is also to ensure that stored grain quality, suppression insect pest growth, the important means of delay grain one-tenthization.
Winter ventilation is the cooling method that northern area is commonly used, i.e. select high-power (5.5Kw～11Kw) centrifugal blower that silo is carried out continuous ventilating cooling, the whole high-power centrifugal blower of aeration-cooling process is constantly in duty, cause energy consumption high, continuous ventilating also results in substantial amounts of water loss the most for a long time, causes the safe moisture of grain to lose serious.
Therefore, how to solve the problems referred to above, become the problem that grain storage industry is paid close attention to and explored.
Summary of the invention
In consideration of it, present disclosure provides a kind of aeration cooling system for grain and aeration-cooling method thereof, at least to solve conventional aeration-cooling method, to there is energy consumption high, and grain moisture content runs off the problem such as serious.
One aspect of the present invention provides a kind of aeration cooling system for grain, it is characterised in that including: silo the 1, first Temperature and Humidity device the 2, second Temperature and Humidity device 3, controller 4 and blower fan 5；
The upper and lower of described silo 1 offers respectively to be provided with on vent window and vent, and described vent window and controls the sealed window 11 that described vent window is opened/closed, and described vent is provided with and controls the sealed door that described vent is opened/closed；
Described first Temperature and Humidity device 2 is arranged at the outside of described silo 1；
Described second Temperature and Humidity device 3 is arranged at the inside of described silo 1；
The air outlet of described blower fan 5 connects with the vent of described silo 1；
Described controller 4 electrically connects with described sealed window 11, sealed door, first Temperature and Humidity device the 2, second Temperature and Humidity device 3 and blower fan 5 respectively.
Preferably, it is provided with ventilation pipe network 13 in described silo 1；
Described ventilation pipe network 13 is made up of the ventilation duct 131 of multiple parallel connections, and is all arranged at intervals with multiple vent 132 on each ventilation duct 131；
The air intake of described ventilation pipe network 13 connects with the vent of described silo 1.
Further preferably, described blower fan 5 includes: fan body 51, frame 52 and multiple the first row travelling wheel 53；
Described fan body 51 is installed on the top of described frame 52；
Described the first row travelling wheel 53 is mounted on the lower section of described frame 52, and multiple described the first row travelling wheel 53 at least includes two directional wheels and a universal wheel.
Further preferably, described controller 4 includes: first data receipt unit the 41, second data receipt unit 42, data processing unit 43, threshold value writing unit 44 and threshold value comparing unit 45；
The input of described first data receipt unit 41 is connected with the outfan of described first Temperature and Humidity device 2；
The input of described second data receipt unit 42 is connected with the outfan of described second Temperature and Humidity device 3；
The input of described data processing unit 43 outfan with the outfan of described first data receipt unit 41 and described second data receipt unit 42 respectively is connected；
The input of described threshold value comparing unit 45 outfan with the outfan of described data processing unit 43 and described threshold value writing unit 44 respectively is connected, and the outfan of described threshold value comparing unit 45 electrically connects with described sealed window 11, sealed door and blower fan 5 respectively.
Another aspect of the present invention additionally provides a kind of aeration-cooling method for grain, it is characterised in that comprise the steps:
Detect the air temperature value outside silo and air humidity value；
Detect the grain stack temperature value within silo and grain heap humidity value；
According to described air temperature value, air humidity value, grain stack temperature value and grain heap humidity value, interval carries out the ventilation operation of silo.
Preferably, described according to described air temperature value, air humidity value, grain stack temperature value and grain heap humidity value, interval carries out the ventilation operation step of silo, particularly as follows:
Relatively described grain stack temperature value and described air temperature value, it is thus achieved that temperature difference；
Relatively described air humidity value and described grain heap humidity value, it is thus achieved that psychrometric difference；
Described temperature difference is compared with temperature threshold, described psychrometric difference is compared with humidity threshold；
When described temperature difference is more than or equal to described temperature threshold, and described psychrometric difference more than or equal to described humidity threshold time, open vent window and the vent of described silo, air outside described silo is delivered directly to the vent of described silo, air within described silo is discharged by vent window, is aerated；
When described temperature difference is more than or equal to described temperature threshold, and described psychrometric difference less than described humidity threshold time, open vent window and the vent of described silo, the vent of described silo will be transported to after air wetting outside described silo, air within described silo is discharged by vent window, is aerated；
When described temperature difference is less than described temperature threshold, close vent window and the vent of described silo, stop ventilating.
The aeration cooling system for grain that the present invention provides, respectively the aerial temperature and humidity outside silo and the grain heap humiture within silo are detected in real time by the first Temperature and Humidity device and the second Temperature and Humidity device, aerial temperature and humidity and grain heap humiture situation according to detection in real time, the vent window and the vent that control silo respectively are opened/are closed, and control the watt level of the operation/stop and running of blower fan, this aeration cooling system can be according to the silo inner case of detection in real time and silo external circumstances, interval is aerated operation for silo, avoid blower fan long lasting for work, reduce the energy consumption of blower fan, the most also it is avoided that the problem serious long lasting for the loss of moist caused that ventilates.
It should be appreciated that it is only exemplary and explanatory that above general description and details hereinafter describe, the present invention can not be limited.
Accompanying drawing explanation
Accompanying drawing herein is merged in description and constitutes the part of this specification, it is shown that meet embodiments of the invention, and for explaining the principle of the present invention together with description.
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, for those of ordinary skills, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the aeration cooling system for grain that Fig. 1 provides for the open embodiment of the present invention；
The workflow diagram of the aeration cooling system for grain that Fig. 2 provides for the open embodiment of the present invention；
The structural representation of the ventilation pipe network that Fig. 3 provides for the open embodiment of the present invention；
The structural representation of the ventilation duct that Fig. 4 provides for the open embodiment of the present invention；
The structural representation of the blower fan that Fig. 5 provides for the open embodiment of the present invention；
The frame for movement schematic diagram of the controller that Fig. 6 provides for the open embodiment of the present invention；
The modular structure schematic diagram of the controller that Fig. 7 provides for the open embodiment of the present invention；
Fig. 8 be use that the open embodiment of the present invention provides when the aeration-cooling method of grain, grain stack temperature Changing Pattern schematic diagram.
Detailed description of the invention
Here will illustrate exemplary embodiment in detail, its example represents in the accompanying drawings.When explained below relates to accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represents same or analogous key element.Embodiment described in following exemplary embodiment does not represent all embodiments consistent with the present invention.On the contrary, they only with describe in detail in appended claims, the present invention some in terms of the example of consistent apparatus and method.
nullSeeing Fig. 1 is the aeration cooling system for grain，Including: silo 1，Vent window and vent is offered respectively in the upper and lower of silo 1，And the sealed window 11 that this vent window of control is opened/closed is installed on vent window，Vent is provided with and controls the sealed door that this vent is opened/closed，The first Temperature and Humidity device 2 for detecting the aerial temperature and humidity outside silo 1 is installed in the outside of silo 1，Internally installed the second Temperature and Humidity device 3 having for detecting the grain heap humiture within silo 1 at silo 1，And at the vent of silo 1, connect that have can be to the blower fan 5 of this vent air blast，With sealed window 11、Sealed door、First Temperature and Humidity device 2、Second Temperature and Humidity device 3 and blower fan 5 are electrically connected with controller 4，This controller 4 is for receiving the first Temperature and Humidity device 2 and the warm and humid angle value of the second Temperature and Humidity device 3 transmission，And control sealed window 11 and the motion of sealed door according to above-mentioned warm and humid angle value，Thus control vent window and the unlatching/closedown of vent on silo 1，This controller 4 can also control the watt level of the operation of blower fan/stop and running simultaneously，It is connected with controller 4 and has power supply 6.
Wherein, in order to improve the aerial temperature and humidity outside silo and the order of accuarcy of the grain heap Temperature and Humidity within silo, respectively multiple first Temperature and Humidity device 2 and multiple second Temperature and Humidity device 3 can be set the most respectively at silo 1, utilize the detection average of the detection average of multiple first Temperature and Humidity device 2 and multiple second Temperature and Humidity device 3 as final aerial temperature and humidity value and the warm and humid angle value of grain heap.
Seeing Fig. 2, the specific works flow process of this aeration cooling system is:
The first Temperature and Humidity device and the humiture data of the second Temperature and Humidity device transmission are received respectively by controller, and the condition of startup blower fan is judged whether to meet according to the humiture data received, if meeting fan starting condition, then further determine whether to meet the variable frequency starting condition of blower fan, if meeting variable frequency starting condition, then start blower fan and carry out variable frequency work, until being unsatisfactory for variable frequency starting condition, if being unsatisfactory for variable frequency starting condition, when the most normally starting blower fan work until being unsatisfactory for starting blower fan work, stop blower fan work.
Above-mentioned aeration cooling system, by the aerial temperature and humidity outside silo and the grain heap humiture within silo are detected in real time, aerial temperature and humidity value and the warm and humid angle value of grain heap according to detection in real time, control the vent window of silo and the unlatching/closedown of vent respectively, and control the watt level of the operation/stop and running of blower fan, realize the silo inner case according to detection in real time and silo external circumstances, interval is aerated operation for silo, avoid blower fan long lasting for work, reduce the energy consumption of blower fan, the most also it is avoided that the problem serious long lasting for the loss of moist caused that ventilates.
Improvement as technical scheme, see Fig. 3, it is provided with aeration structure in silo 1, specially it is provided with ventilation pipe network 13, this ventilation pipe network 13 is made up of the ventilation duct 131 of multiple parallel connections, and all it being arranged at intervals with multiple vent 132 on each ventilation duct 131, the air intake of this ventilation pipe network 13 connects with the vent 14 of silo 1.The air being transported to silo vent mainly for convenience by blower fan by the design of this ventilation pipe network 13 can balancedly be transported in the grain layer of silo, improves ventilation effect.
Wherein, the structure of this ventilation duct 131 can be found in 4, ventilation duct is semicircular pipe, its lower plane directly buckles on the bottom surface of silo 1, exhaust outlet 132 is disposed in the cambered surface of ventilation duct, wherein, the percent opening of ventilation duct is generally 25%, 30% and 35% etc., can be designed according to actual needs.During use, grain heap is deposited directly on the top of cambered surface, and being designed to of this cambered surface effectively prevents due to the damage to it of the grain heap downward gravity.
Another kind of aeration structure is to be arranged on rectangle cell body on the bottom surface of silo 1, this rectangle cell body connects with the vent of silo, at the upper cover that is provided above of rectangle cell body, and on cover and be arranged at intervals with multiple exhaust outlet, during use, grain heap is deposited directly on above the upper cover of cuboid.
Wherein, blower fan 5 can be designed as fixed or packaged type, sees the structural representation that Fig. 5 is portable blower fan 5, comprising: fan body 51, frame 52 and multiple the first row travelling wheel 53；Fan body 51 is installed on the top of frame 52；The first row travelling wheel 53 is mounted on the lower section of frame 52, and multiple the first row travelling wheel 53 at least includes being provided with locking device on two directional wheels and a universal wheel, and above-mentioned the first row travelling wheel 53, has lock function.The power of this blower fan 15 can be selected less than or equal to 1.5KW.
In order to improve the safety of blower fan 5 and facilitate the electrical connection of blower fan; frame 52 is additionally provided with the protector 54 for fan body 51 and industrial socket 55; air outlet in fan body 51 is provided with connection flexible pipe 56; this connection flexible pipe 56 sets up reinforcement at circumferencial direction, and during to ensure exhaust ventilation, air-flow is unimpeded.
In terms of frame for movement angle, see the frame for movement schematic diagram that Fig. 6 is controller 4, this controller 4 includes that cabinet 45, control panel 46, base the 47, second road wheel 48, cable connect socket 49 and controller body 410, cabinet 45 is fixedly mounted on base 47, be provided with control panel 46 on cabinet 45, cable connects socket 49, controller body 410, is provided with the second road wheel 48 below base 47.
Control panel 46 is provided with manual and automatic transfer switch and manual control button, under state switching and manual mode, controls ventilation process.
Controller noted above body 410 is embedded on control panel 46, the second road wheel 48 is provided with locking device, has lock function.
In terms of functional module angle, seeing the modular structure schematic diagram that Fig. 7 is controller 4, this controller 4 includes: first data receipt unit the 41, second data receipt unit 42, data processing unit 43, threshold value writing unit 44 and threshold value comparing unit 45；Wherein, the input of the first data receipt unit 41 and the outfan of the first Temperature and Humidity device 2 connect；The input of the second data receipt unit 42 and the outfan of the second Temperature and Humidity device 3 connect；The input of data processing unit 43 is connected with the outfan of the first data receipt unit 41 and the outfan of the second data receipt unit 42 respectively；The input of threshold value comparing unit 45 is connected with the outfan of data processing unit 43 and the outfan of threshold value writing unit 44 respectively, and the outfan of threshold value comparing unit 45 electrically connects with sealed window 11, sealed door and blower fan 5 respectively.
The concrete control process of this controller is:
The humiture data sent by the first Temperature and Humidity device and the second Temperature and Humidity device are received respectively by the first data receipt unit and the second data receipt unit, data in first data receipt unit and the second data cell are carried out making difference process by data processing unit, obtain difference data, threshold value in difference data in data processing unit and threshold value writing unit is compared by threshold value comparing unit, judge whether to meet ventilation condition, when meeting ventilation condition, control sealed window 11 and sealed door motion, open vent and the vent window of silo, start blower fan to be aerated；When being unsatisfactory for ventilation condition, control sealed window 11 and sealed door motion, close vent and the vent window of silo, close blower fan to stop ventilating, can also be according to the humidity information in data, it is transported in silo by blower fan again after controlling whether air is humidified, additionally can control blower fan according to the size of detection difference data and carry out variable frequency work, to obtain preferable air quantity.
The present inventor is found by substantial amounts of research: can only detect the temperature in grain heap (grain gap air) and humidity owing to being installed on the internal Temperature and Humidity device of silo, temperature and the humidity of grain grain itself cannot be detected, when grain heap (grain gap air) temperature is down to close to air themperature outside silo, the cooling not representing grain has been ventilated, after the regular hour, the heat of grain grain release can make again grain heap (grain gap air) temperature slowly raise, if in grain heap (grain gap air) temperature close to the air themperature outside silo, and grain grain actual temperature keeps ventilating when being higher than the air themperature outside silo, cooling-down effect is the best, only need to be aerated again being just greatly improved drafting efficiency when grain heap (grain gap air) temperature recovery is the most in a basic balance with grain grain temperature.
Based on above-mentioned discovery, present embodiments provide a kind of aeration-cooling method for grain, comprise the steps:
S1: detect the air temperature value outside silo and air humidity value；
S2: detect the grain stack temperature value within silo and grain heap humidity value；
S3: according to air temperature value, air humidity value, grain stack temperature value and grain heap humidity value, interval carries out the ventilation operation of silo.
Wherein, step S3: according to described air temperature value, air humidity value, grain stack temperature value and grain heap humidity value, interval carries out the ventilation operation step of silo, particularly as follows:
S301: compare grain stack temperature value and air temperature value, it is thus achieved that temperature difference；
S302: compare air humidity value and grain heap humidity value, it is thus achieved that psychrometric difference；
S303: temperature difference compared with temperature threshold, compares psychrometric difference with humidity threshold；
S304: when temperature difference is more than or equal to temperature threshold, and psychrometric difference more than or equal to humidity threshold time, open the vent window of silo and vent, the air outside silo be delivered directly to the vent of silo, air within described silo is discharged by vent window, is aerated；
S305: when temperature difference is more than or equal to temperature threshold, and psychrometric difference less than humidity threshold time, open the vent window of silo and vent, the vent of silo will be transported to after the air wetting outside silo, air within described silo is discharged by vent window, is aerated；
S306: when temperature difference is less than temperature threshold, closes vent window and the vent of silo, stops ventilating.
Aeration-cooling method in the present embodiment, according to granary air temperature value, air humidity value, grain stack temperature value and grain heap humidity value, interval carries out the ventilation operation of silo, grain stack temperature Changing Pattern after using the method to be aerated cooling can be found in Fig. 8, it is only meeting temperature with high efficiency when, just open blower fan to be aerated, optimal cooling-down effect is realized with minimum fan energy consumption, avoid blower fan long lasting for operation, reduce energy consumption, method of ventilation in the present embodiment can also carry out moisture humidity to grain and supplements while ventilating simultaneously, achieve grain moisture to keep, stablize grain quality.
Those skilled in the art, after considering description and putting into practice invention disclosed herein, will readily occur to other embodiments of the present invention.The application is intended to any modification, purposes or the adaptations of the present invention, and these modification, purposes or adaptations are followed the general principle of the present invention and include the undocumented common knowledge in the art of the present invention or conventional techniques means.Description and embodiments is considered only as exemplary, and true scope and spirit of the invention are pointed out by claim below.
It should be appreciated that the invention is not limited in precision architecture described above and illustrated in the accompanying drawings, and various modifications and changes can carried out without departing from the scope.The scope of the present invention is only limited by appended claim.
Claims (6)
1. the aeration cooling system for grain, it is characterised in that including: silo (1), the first Temperature and Humidity
Device (2), the second Temperature and Humidity device (3), controller (4) and blower fan (5)；
The upper and lower of described silo (1) offers respectively and is provided with control on vent window and vent, and described vent window
Make the sealed window (11) that described vent window is opened/closed, described vent is provided with the described vent of control and opens/close
Sealed door；
Described first Temperature and Humidity device (2) is arranged at the outside of described silo (1)；
Described second Temperature and Humidity device (3) is arranged at the inside of described silo (1)；
The air outlet of described blower fan (5) connects with the vent of described silo (1)；
Described controller (4) respectively with described sealed window (11), sealed door, the first Temperature and Humidity device (2), second
Temperature and Humidity device (3) and blower fan (5) electrical connection.
The most according to claim 1 for the aeration cooling system of grain, it is characterised in that in described silo (1)
It is provided with ventilation pipe network (13)；
Described ventilation pipe network (13) is made up of the ventilation duct (131) of multiple parallel connections, and each ventilation duct (131) is upper all
It is arranged at intervals with multiple vent (132)；
The air intake of described ventilation pipe network (13) connects with the vent of described silo (1).
The most according to claim 1 for the aeration cooling system of grain, it is characterised in that described blower fan (5) wraps
Include: fan body (51), frame (52) and multiple the first row travelling wheel (53)；
Described fan body (51) is installed on the top of described frame (52)；
Described the first row travelling wheel (53) is mounted on the lower section of described frame (52), and multiple described the first row travelling wheel (53)
At least include two directional wheels and a universal wheel.
The most according to claim 1 for the aeration cooling system of grain, it is characterised in that described controller (4)
Including: the first data receipt unit (41), the second data receipt unit (42), data processing unit (43), threshold value are write
Enter unit (44) and threshold value comparing unit (45)；
The input of described first data receipt unit (41) is connected with the outfan of described first Temperature and Humidity device (2)；
The input of described second data receipt unit (42) is connected with the outfan of described second Temperature and Humidity device (3)；
The input of described data processing unit (43) respectively with the outfan of described first data receipt unit (41) with
And the outfan of described second data receipt unit (42) connects；
The input of described threshold value comparing unit (45) respectively with the outfan of described data processing unit (43) and described
The outfan of threshold value writing unit (44) connects, and the outfan of described threshold value comparing unit (45) is airtight with described respectively
Window (11), sealed door and blower fan (5) electrical connection.
5. the aeration-cooling method for grain, it is characterised in that comprise the steps:
Detect the air temperature value outside silo and air humidity value；
Detect the grain stack temperature value within silo and grain heap humidity value；
According to described air temperature value, air humidity value, grain stack temperature value and grain heap humidity value, interval carries out silo
Ventilation operation.
The most according to claim 5 for the aeration-cooling method of grain, it is characterised in that described according to described air
Temperature value, air humidity value, grain stack temperature value and grain heap humidity value, interval carries out the ventilation operation step of silo, tool
Body is:
Relatively described grain stack temperature value and described air temperature value, it is thus achieved that temperature difference；
Relatively described air humidity value and described grain heap humidity value, it is thus achieved that psychrometric difference；
Described temperature difference is compared with temperature threshold, described psychrometric difference is compared with humidity threshold；
When described temperature difference is more than or equal to described temperature threshold, and when described psychrometric difference is more than or equal to described humidity threshold, open
Open vent window and the vent of described silo, the air outside described silo be delivered directly to the vent of described silo,
Air within described silo is discharged by vent window, is aerated；
When described temperature difference is more than or equal to described temperature threshold, and when described psychrometric difference is less than described humidity threshold, open institute
State vent window and the vent of silo, the vent of described silo after the air wetting outside described silo, will be transported to, will
Air within described silo is discharged by vent window, is aerated；
When described temperature difference is less than described temperature threshold, close vent window and the vent of described silo, stop ventilating.
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| CN201610321201.0A CN105993418A (en) | 2016-05-16 | 2016-05-16 | Ventilation and cooling system used for grains and ventilation and cooling method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107380771A (en) * | 2017-07-24 | 2017-11-24 | 金田国康（天津）农业科技发展有限公司 | Tunnel negative pressure self-priming is cold to may move spliced miniature silo |
| CN108040622A (en) * | 2017-12-15 | 2018-05-18 | 天津市明伦电子技术股份公司 | Cooling and ventilating control system and method for grain storage bin |
| CN108459643A (en) * | 2018-05-10 | 2018-08-28 | 鞍山市粮食科学研究所 | A kind of new energy Intelligent target is to air-cooled green storage technique |
| CN109548501A (en) * | 2019-01-04 | 2019-04-02 | 石治国 | A kind of automatic granary temperature measuring dust-extraction unit |
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| CN114208504A (en) * | 2021-12-14 | 2022-03-22 | 成都锦沅广智科技有限公司 | Green low-temperature grain storage fumigation-free low-temperature grain storage system and method |
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