CN105075546B - Silo ventilating system and method - Google Patents
Silo ventilating system and method Download PDFInfo
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- CN105075546B CN105075546B CN201510608233.4A CN201510608233A CN105075546B CN 105075546 B CN105075546 B CN 105075546B CN 201510608233 A CN201510608233 A CN 201510608233A CN 105075546 B CN105075546 B CN 105075546B
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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
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- 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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Abstract
The invention provides a kind of silo ventilating system and method, are related to View of Grain Storage Technoiogy field.The silo ventilating system includes temperature-humidity detecting device, ventilation unit and central control module；The silo method of ventilation, according to the temperature parameter and humidity parameter of air outside air in the temperature parameter and humidity parameter, warehouse inside the grain heap of temperature-humidity detecting device detection and warehouse, central control module control ventilation unit is precisely divulged information to warehouse, temperature parameter and water parameters in grain heap is maintained in preset range.
Description
Technical field
The present invention relates to View of Grain Storage Technoiogy field, more particularly to a kind of silo ventilating system and method.
Background technology
Structural representations of the Fig. 1 for the silo ventilating system of prior art.As shown in figure 1, existing silo ventilating system
By warehouse 1, grain heap 2, upper vent 3, lower vent 4, the blower fan 5 for being fixed on wall or being connected to vent, for detecting grain
The temperature detector 6 of 2 temperature of heap, the Temperature and Humidity device 7 for grain heap upper space and the warehouse external space are constituted.Existing storage
There is following many deficiencies in grain ventilating system：
1st, temperature detector 6 is only installed in grain heap, it is impossible to detect the humidity of grain heap each point and calculate moisture, grain heap moisture is needed
Manual sampling is detected, therefore can not carry out automatically the ventilation operation such as precipitation, quenched, water conservation.
2nd, rotation speed of fan can not require to be adjusted according to the different of cooling, water conservation, precipitation and conditioning and aeration, therefore divulge information
Amount is fixed, it is impossible to meet different demands of the ventilation purpose to ventilation, causes to divulge information energy consumption and larger, drafting efficiency is lost
It is low.
3rd, using single direction rotation blower fan, it is impossible to bidirectional ventilated, to be unfavorable in reduction ventilation process grain heap is carried out to grain heap
Thermograde and the gradation of moisture, be unfavorable for improving Uniform Ventilation and energy saving water preserving, it is impossible to meet different ventilation purposes to logical
The automatic conversion in wind direction is required.
4th, Temperature and Humidity device 7 is not provided with vent, it is impossible to the moisture content of whole grain heap in real-time detection ventilation process
Variable quantity, can not understand ventilation cold front face and whether moisture peak face removes grain heap.
The content of the invention
It is an object of the invention to provide a kind of silo ventilating system and method, to solve the silo ventage of prior art
What system and method were present is aerated control, the temperature of grain heap and moisture cannot be carried out precisely only according to warehouse temperature parameter
The problem of control.
To achieve these goals, the present invention is employed the following technical solutions：
A kind of silo ventilating system that the present invention is provided, including temperature-humidity detecting device, ventilation unit and central authorities' control mould
Block；The temperature-humidity detecting device is used to detecting temperature parameter and humidity parameter inside grain heap, in warehouse outside air and warehouse
The temperature parameter and humidity parameter of air；The ventilation unit includes upper vent, lower vent and the blower fan in warehouse, the wind
Machine is arranged on the upper vent and/or the lower vent, for driving air to flow in or out warehouse；Central authorities' control
Module is connected with the temperature-humidity detecting device and the ventilation unit respectively；The central control module is for according to the temperature
The temperature parameter and humidity parameter of humidity detector detection, and the upper vent and institute are controlled according to different ventilation purposes
The opening and closing of lower vent and steering and the air quantity of the blower fan are stated, maintains temperature parameter and water parameters in grain heap pre-
If in scope.
Further, the temperature-humidity detecting device includes first sensor, second sensor and 3rd sensor；Described
One sensor includes multiple detecting heads, is uniformly distributed in grain heap from top to bottom；The detecting head of the second sensor is set respectively
Put in the air in warehouse outside the upper space and warehouse of grain heap；The detecting head of the 3rd sensor be arranged at it is described under
Vent, for detecting the temperature parameter and humidity parameter of the lower vent air.The technical scheme has technical effect that：
First sensor, second sensor and 3rd sensor be respectively used to detect air inside grain heap, outside grain heap top and warehouse, under
Temperature parameter and humidity parameter in vent.And first sensor includes multiple equally distributed spies from top to bottom in grain heap
Gauge head, can detect the temperature parameter and humidity parameter in grain heap various places inside and each height section, and second sensor can be examined
The temperature parameter and humidity parameter of air outside grain heap upper space and warehouse are surveyed, 3rd sensor can detect the lower vent of turnover
Air temperature parameter and humidity parameter, the detection data of three sensors controls different ventilation sides as central control module
The Data Source of method.
Further, silo ventilating system includes the air conditioner for being arranged at the lower vent, the air conditioner
It is connected with the central control module, for adjusting the humidity and temperature of air.The technical scheme has technical effect that：Air
Actuator is arranged on lower vent, can adjust temperature, the humidity of air by lower vent, and then affect inside grain heap
Temperature and moisture.
Further, the blower fan is the rotatable ventilation blower of bidirectional reversible.The technical scheme has technical effect that：In order to control
Temperature, humidity, moisture and gradient inside grain heap, needs control to flow into the air in warehouse according to specific direction, so,
Using the blower fan that bidirectional reversible is rotatable, the purpose of accurate Ventilation Control temperature, humidity, moisture and gradient can be reached.
The present invention also provides a kind of silo method of ventilation, according to the temperature parameter and humidity ginseng of temperature-humidity detecting device detection
Number, upper vent and the opening and closing of lower vent of the central control module according to different ventilation purpose control warehouses, and control
The steering of blower fan and air quantity, make temperature and moisture in grain heap maintain in preset range.
Further, according to first sensor detection temperature parameter and humidity parameter, the temperature ginseng of second sensor detection
Number and humidity parameter, judge whether grain heap meets the ventilation condition lowered the temperature and allow precipitation, if meeting, control the upper ventilation
Mouth and the lower vent are opened；Temperature parameter and humidity parameter, second sensing according to first sensor detection
The temperature parameter and humidity parameter, temperature gradient direction and unit ventilation of device detection, and control the steering of the blower fan
And rotating speed, so that the blower fan is according to unit ventilation or critical unit ventilation air feed, and according to along thermograde direction
Air feed；The temperature parameter and wet of temperature parameter and humidity parameter, 3rd sensor detection according to first sensor detection
Degree parameter, judges whether grain heap air-flow cold front face and moisture peak face remove grain heap, if removing grain heap, controls turning for the blower fan
To and rotating speed so that the temperature and moisture of grain heap are maintained in preset range, and the thermograde and the gradation of moisture in grain heap does not have
Have beyond allowed band.The technical scheme has technical effect that：The method can need to reduce temperature and drop inside grain heap
During low moisture, automatically control blower fan, upper vent and lower vent and warehouse be aerated, make temperature parameter inside grain heap and
Water parameters are eventually arrived at and are maintained in preset range, and the thermograde and the gradation of moisture inside grain heap is without departing from permission
Scope.
Further, according to first sensor detection temperature parameter and humidity parameter, the temperature ginseng of second sensor detection
Number and humidity parameter, judge grain heap whether meet cooling and water conservation ventilation condition, if meet, control the upper vent with
The lower vent is opened；But if meeting cooling being unsatisfactory for the ventilation condition of water conservation, control air conditioner is opened；According to
Temperature parameter and humidity ginseng that the temperature parameter and humidity parameter, the second sensor of the first sensor detection is detected
Number, temperature gradient direction and unit ventilation, and steering and the rotating speed of the blower fan are controlled, so that the blower fan is according to list
Position ventilation or critical unit ventilation air feed, and according to reverse thermal gradient direction air feed；Examined according to the first sensor
Temperature parameter and humidity parameter that the temperature parameter and humidity parameter of survey, 3rd sensor are detected, judge grain heap air-flow cold front face
Whether remove grain heap with humidity peak face, if remove grain heap, control steering and the rotating speed of the blower fan so that the temperature of grain heap and
Moisture is maintained in preset range, and the thermograde and the gradation of moisture of grain heap is without departing from allowed band.The skill of the technical scheme
Art effect is：When the method can need to reduce inside grain heap temperature, blower fan, upper vent, lower vent are automatically controlled
Warehouse is aerated, and can judge whether that opening air conditioner humidifies to warehouse inside according to ventilation effect,
Temperature parameter and water parameters inside grain heap is made to eventually arrive at and maintain in preset range, and the thermograde inside grain heap
With the gradation of moisture without departing from allowed band.
Further, according to first sensor detection temperature parameter and humidity parameter, the temperature ginseng of second sensor detection
Number and humidity parameter, judge whether grain heap needs to reduce moisture, if desired, then control the upper vent and the lower vent
Open；The temperature parameter of temperature parameter and humidity parameter, second sensor detection according to first sensor detection
And humidity parameter, temperature gradient direction and unit ventilation, and steering and the rotating speed of the blower fan are controlled, so that the wind
Machine according to unit ventilation or critical unit ventilation air feed, and according to along thermograde direction air feed；According to described first
Temperature parameter and humidity parameter that the temperature parameter and humidity parameter, 3rd sensor of sensor detection is detected, judge that grain heap is wet
Whether degree peak face and moisture peak face remove grain heap, if removing grain heap, control steering and the rotating speed of the blower fan, so that grain heap
Temperature and moisture are maintained in preset range, and the thermograde and the gradation of moisture of grain heap is without departing from allowed band.The technical side
Case has technical effect that：The method can need inside grain heap reduce moisture when, automatically control blower fan, upper vent, under
Vent is aerated to warehouse, temperature parameter and water parameters inside grain heap is eventually arrived at and is maintained preset range
It is interior, and the thermograde and the gradation of moisture inside grain heap is without departing from allowed band.
Further, according to first sensor detection temperature parameter and humidity parameter, the temperature ginseng of second sensor detection
Number and humidity parameter, judge conditioning and aeration condition whether is met inside grain heap, if satisfaction, control the upper vent and described
Lower vent is opened；If being unsatisfactory for, control air conditioner is opened；According to the first sensor detection temperature parameter and
Humidity parameter, the temperature parameter of second sensor detection and humidity parameter, temperature gradient direction and unit ventilation,
And control steering and the rotating speed of the blower fan, so that the blower fan is according to unit ventilation or critical unit ventilation air feed, and
And according to reverse thermal gradient direction air feed；Temperature parameter and humidity parameter, the 3rd sensing according to first sensor detection
The temperature parameter and humidity parameter of device detection, judges whether grain heap low humidity and low moisture peak face remove grain heap, if removing grain heap,
Steering and the rotating speed of the blower fan are controlled then, so that the temperature and moisture of grain heap are maintained in preset range, and the temperature of grain heap
Gradient and the gradation of moisture are without departing from allowed band.The technical scheme has technical effect that：The method can be needed inside grain heap
When wanting quenched, automatically control blower fan, upper vent, lower vent and warehouse is aerated, and is judged whether according to ventilation effect
Air conditioner is opened to the air wetting in warehouse, temperature parameter and water parameters inside grain heap is eventually arrived at and is maintained
In preset range, and the thermograde and the gradation of moisture inside grain heap is without departing from allowed band.
Further, the blower fan is frequency conversion adjustable speed blower fan；The computing formula of the unit ventilation is：
In formula：Q-unit ventilation (m3/Kg·s)；
Cg-grain specific heat (KJ/Kg DEG C)；
ω-grain percentage of water loss (%)；
ρ-normal atmosphere (Pa)；
τ-ventilation duration (hour)；
tGrain 1- grain heap initial temperature (DEG C)；
tGrain 2- require the temperature (DEG C) that grain heap is reached at the end of divulging information；
tAir inlet- warehouse entry air themperature (DEG C).
Silo ventilating system and method that the present invention is provided, detect the temperature ginseng inside grain heap using temperature-humidity detecting device
In number and humidity parameter, and warehouse outside air and warehouse air temperature parameter and humidity parameter, central control module according to
Above-mentioned temperature parameter and humidity parameter, control ventilation unit carries out the accurate ventilation of different purposes to warehouse, can make grain
Temperature parameter and water parameters in heap is reached and is maintained in default scope, realizes the temperature to grain heap, humidity and moisture
Control.
Description of the drawings
Structural representations of the Fig. 1 for the silo ventilating system of prior art；
Fig. 2 is the structural representation of silo ventilating system provided in an embodiment of the present invention；
Fig. 3 is cooling precipitation ventilation flow chart in silo method of ventilation provided in an embodiment of the present invention；
Fig. 4 is cooling water conservation ventilation flow chart in silo method of ventilation provided in an embodiment of the present invention；
Fig. 5 is precipitation ventilation flow chart in silo method of ventilation provided in an embodiment of the present invention；
Fig. 6 is conditioning and aeration flow chart in silo method of ventilation provided in an embodiment of the present invention.
Reference：
1- warehouses；2- grain heaps；The upper vents of 3-；
Vent under 4-；5- blower fans；6- temperature detectors；
7- Temperature and Humidity devices；
101- first sensors；102- second sensors；103- 3rd sensors；
104- air conditioners.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described enforcement
Example is a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill
The every other embodiment obtained under the premise of creative work is not made by personnel, belongs to the scope of protection of the invention.
A kind of silo ventilating system is present embodiments provided, Fig. 2 is silo ventilating system provided in an embodiment of the present invention
Structural representation.As shown in Fig. 2 the present embodiment provide silo ventilating system include temperature-humidity detecting device, ventilation unit and
Central control module.Wherein, temperature-humidity detecting device can detect the temperature parameter and humidity parameter inside grain heap 2, Yi Jicang
The temperature parameter and humidity parameter of 1 outer air of air and warehouse in room 1.Ventilation unit includes being arranged on 1 side wall upper part of warehouse
Upper vent 3, the lower vent 4 of 1 lower sidewall of warehouse and blower fan 5, and blower fan 5 be arranged on warehouse 1 upper vent 3 and/or
Lower vent 4, for driving air to flow in or out warehouse 1.Central control module respectively with temperature-humidity detecting device and ventilation
Device connects, and central control module can judge warehouse 1 according to the temperature parameter of temperature-humidity detecting device detection and humidity parameter
The air-conditioning requirement of needs, and then control the opening and closing of the upper vent 3 and lower vent 4 in warehouse 1, and steering and the wind of blower fan 5
Amount, is aerated to warehouse 1.In the prior art, the water parameters inside grain heap 2 are detected by manual sampling, it is impossible to according to reality
When the humidity parameter that detects calculate automatically the water parameters of grain heap 2, therefore accurately warehouse 1 can not be carried out automatic ventilation to reach
To the purpose of the temperature and moisture of adjustment grain heap 2；Meanwhile, blower fan 5 is merely able to carry out one direction ventilation to warehouse 1, is unfavorable for subtracting
Thermograde and the gradation of moisture in few ventilation process inside grain heap 2, is unfavorable for forming ventilation effect uniform inside grain heap 2
Property.
The silo ventilating system that the present embodiment is provided, is mounted with for detecting 2 inside temperature parameter of grain heap and humidity parameter,
And in warehouse 1 air and 1 outer atmospheric temperature parameter of warehouse and humidity parameter temperature-humidity detecting device, also, using central authorities
Control module, is aerated control to warehouse 1 by the optional blower fan 5 in air feed direction, can realize to grain is particularly in warehouse 1
The regulation of temperature parameter and water parameters is carried out inside heap 2, further, can be made special in warehouse 1 by the control to blower fan 5
It is not that thermograde and the gradation of moisture inside grain heap 2 narrows down to acceptable scope, reaches relative uniform of internal medium.
In the alternative of the present embodiment, as shown in Fig. 2 further, temperature-humidity detecting device includes the first sensing
Device 101, second sensor 102 and 3rd sensor 103.Wherein, first sensor 101 is arranged on equal from top to bottom in grain heap 2
Multiple detecting heads of even distribution, for detecting the humiture parameter of 2 various places inside of grain heap and each height section；Second sensor
102 detecting head is separately positioned in the upper space of grain heap 2 in warehouse 1 and the air outside warehouse 1, is able to detect grain
The humiture parameter of the upper space and outside atmosphere of heap 2；The detecting head of 3rd sensor 103 is arranged on lower vent 4, is used for
Detect the humiture parameter by 4 air of lower vent.In the present embodiment, the detection numerical value of above-mentioned three kinds of sensors, as in
The draft type that centre control module judges required for warehouse 1, and accurately the numerical value of Ventilation Control according to.
In the alternative of the present embodiment, as shown in Fig. 2 further, silo ventilating system is additionally provided with and is located at down
The air conditioner 104 of vent 4.In the present embodiment, in order to increase humidity to air in warehouse 1, pacify in lower vent 4
Air conditioner 104 is filled, the air into warehouse 1 has been humidified.Especially, in order to reduce humidity, increase temperature or
Reduce temperature, it is also possible to which the regulation of humidity is carried out by air conditioner 104.
In the alternative of the present embodiment, as shown in Fig. 2 further, blower fan 5 selects rotatable logical using bidirectional reversible
Blower fan 5.In order to control the temperature and humidity inside grain heap 2, and the inner homogeneous of humiture in warehouse 1 are realized, need control
Air into warehouse 1 flows according to specific direction, so, in the present embodiment, silo ventilating system is turned using bidirectional reversible
The blower fan 5 of formula, can reach and change wind direction, the purpose of precisely ventilation.
The present embodiment additionally provides a kind of silo method of ventilation, according to the temperature parameter and wet of temperature-humidity detecting device detection
Degree parameter, central control module judge the ventilation effect that grain heap 2 needs in warehouse 1, and then control according to different ventilation purposes
The opening and closing of the upper vent 3 in warehouse 1 and lower vent 4, and steering and the air quantity of blower fan 5 are controlled, make the temperature inside grain heap 2
Reach and maintain in default scope with water parameters.
Fig. 3 is cooling precipitation ventilation flow chart in silo method of ventilation provided in an embodiment of the present invention；As shown in figure 3,
In the alternative of the present embodiment, silo method of ventilation includes precipitation method of ventilation of lowering the temperature, and specifically includes：
Step 11, the temperature parameter detected according to first sensor 101 and second sensor 102 and humidity parameter, judge
Whether grain heap 2 meets the ventilation condition lowered the temperature and allow precipitation, if meeting, vent 3 and lower vent 4 on control warehouse 1
Open；
Step 12, the temperature parameter detected according to first sensor 101 and second sensor 102 and humidity parameter, it is determined that
Thermograde direction and unit ventilation, and steering and the rotating speed of blower fan 5 are controlled, so that blower fan 5 is according to unit ventilation or faces
Boundary's unit ventilation air feed, and by along thermograde direction air feed；
Step 13, the temperature parameter detected according to first sensor 101 and 3rd sensor 103 and humidity parameter, judge
Whether 2 air-flow cold front face of grain heap and moisture peak face remove grain heap 2, if removing grain heap 2, control steering and the rotating speed of blower fan 5, with
The temperature and moisture of grain heap 2 is maintained in preset range, and the thermograde and the gradation of moisture in grain heap 2 is without departing from permission
Scope.
In step 13, the temperature parameter and humidity parameter of first sensor 101 and the detection of 3rd sensor 103 are contrasted,
Specifically in two kinds of situation：(1) when air-flow cold front face and moisture peak face remove grain heap 2, and grain heap 2 inside each section of the temperature in the face ginseng
When number gradient and water parameters gradient are without departing from allowed band, central control module control blower fan 5 reduces ventilation until stopping
Only；(2) when air-flow cold front face and moisture peak face remove each section of the temperature in the face parameter gradients and moisture inside grain heap 2, but grain heap 2
When parameter gradients exceed allowed band, central control module control blower fan 5 is turned to so as to change draft direction, until grain heap
Each section of the temperature in the face parameter gradients and water parameters gradient inside 2 narrow down to allowed band, are finally stopped ventilation.
Fig. 4 is cooling water conservation ventilation flow chart in silo method of ventilation provided in an embodiment of the present invention；As shown in figure 4,
In the alternative of the present embodiment, silo method of ventilation includes water conservation method of ventilation of lowering the temperature, and specifically includes：
Step 21, the temperature parameter detected according to first sensor 101 and second sensor 102 and humidity parameter, judge
Whether grain heap 2 meets the ventilation condition of cooling water conservation, if meeting, controls the upper vent 3 and lower vent 4 dozens in warehouse 1
Open；But if meeting cooling being unsatisfactory for the ventilation condition of water conservation, control air conditioner 104 is opened；
Step 22, the temperature parameter detected according to first sensor 101 and second sensor 102 and humidity parameter, it is determined that
Thermograde direction and unit ventilation, and steering and the rotating speed of blower fan 5 are controlled, so that blower fan 5 is according to unit ventilation or faces
Boundary's unit ventilation air feed, and press reverse thermal gradient direction air feed；
Step 23, the temperature parameter detected according to first sensor 101 and 3rd sensor 103 and humidity parameter, judge
Whether 2 air-flow cold front face of grain heap and humidity peak face remove grain heap 2, if removing grain heap 2, control steering and the rotating speed of blower fan 5, with
The temperature and moisture of grain heap 2 is maintained in preset range, and the thermograde and the gradation of moisture of grain heap 2 is without departing from permission model
Enclose.
In step 23, the temperature parameter and humidity parameter of first sensor 101 and the detection of 3rd sensor 103 are contrasted,
Specifically in two kinds of situation：(1) when air-flow cold front face and humidity peak face remove grain heap 2, and grain heap 2 inside each section of the temperature in the face ginseng
When number gradient and water parameters gradient are without departing from allowed band, central control module control blower fan 5 reduces ventilation until stopping
Only；(2) when air-flow cold front face and humidity peak face remove each section of the temperature in the face parameter gradients and moisture inside grain heap 2, but grain heap 2
When parameter gradients exceed allowed band, central control module control blower fan 5 is turned to so as to change draft direction, until grain heap
Each section of the temperature in the face parameter gradients and water parameters gradient inside 2 narrow down to allowed band, are finally stopped ventilation.
Fig. 5 is precipitation ventilation flow chart in silo method of ventilation provided in an embodiment of the present invention；As shown in figure 5, in this reality
Apply in the alternative of example, silo method of ventilation includes precipitation method of ventilation, specifically includes：：
Step 31, the temperature parameter detected according to first sensor 101 and second sensor 102 and humidity parameter, judge
Whether grain heap 2 needs to reduce moisture, if desired, the upper vent 3 and lower vent 4 for then controlling warehouse 1 is opened；
Step 32, the temperature parameter detected according to first sensor 101 and second sensor 102 and humidity parameter, it is determined that
Thermograde direction and unit ventilation, and steering and the rotating speed of blower fan 5 are controlled, so that blower fan 5 is according to unit ventilation or faces
Boundary's unit ventilation air feed, and according to along thermograde direction air feed；
Step 33, the temperature parameter detected according to first sensor 101 and 3rd sensor 103 and humidity parameter, judge
Whether 2 humidity peak face of grain heap and moisture peak face remove grain heap 2, if removing grain heap 2, control steering and the rotating speed of blower fan 5, so that
The temperature and moisture of grain heap 2 is maintained in preset range, and the thermograde and the gradation of moisture of grain heap 2 is without departing from allowed band.
In step 33, the temperature parameter and humidity parameter of first sensor 101 and the detection of 3rd sensor 103 are contrasted,
Specifically in two kinds of situation：(1) when humidity peak face and moisture content peak face remove grain heap 2, and grain heap 2 inside each section of the temperature in the face parameter
When gradient and water parameters gradient are without departing from allowed band, central control module control blower fan 5 reduces ventilation until stopping.
(2) when humidity peak face and moisture content peak face remove each section of the temperature in the face parameter gradients and water parameters inside grain heap 2, but grain heap 2
When gradient exceeds allowed band, central control module control blower fan 5 is turned to so as to change draft direction, until in grain heap 2
The each section of the temperature in the face parameter gradients in portion and water parameters gradient narrow down to allowed band, are finally stopped ventilation.
Fig. 6 is conditioning and aeration flow chart in silo method of ventilation provided in an embodiment of the present invention, as shown in fig. 6, in this reality
Apply in the alternative of example, silo method of ventilation includes conditioning and aeration method, specifically includes：：
Step 41, the temperature parameter detected according to first sensor 101 and second sensor 102 and humidity parameter, judge
Whether conditioning and aeration condition is met inside grain heap 2, if meeting, the upper vent 3 and lower vent 4 for controlling warehouse 1 is opened；If
It is unsatisfactory for, then controls air conditioner 104 and open；
Step 42, the temperature parameter detected according to first sensor 101 and second sensor 102 and humidity parameter, it is determined that
Thermograde direction and unit ventilation, and steering and the rotating speed of blower fan 5 are controlled, so that blower fan 5 is according to unit ventilation or faces
Boundary's unit ventilation air feed, and according to reverse thermal gradient direction air feed；
Step 43, the temperature parameter detected according to first sensor 101 and 3rd sensor 103 and humidity parameter, judge
Whether 2 low humidity of grain heap and low moisture peak face remove grain heap 2, if removing grain heap 2, control steering and the rotating speed of blower fan 5, so that
The temperature and moisture of grain heap 2 is maintained in preset range, and the thermograde and the gradation of moisture of grain heap 2 is without departing from allowed band.
At step 43, the temperature parameter and humidity parameter of first sensor 101 and the detection of 3rd sensor 103 are contrasted,
Specifically divide three kinds of situations：(1) when low humidity peak face and low moisture content peak face not yet remove grain heap 2, but water parameters gradient beyond fair
Perhaps, during scope, central control module control air conditioner 104 reduces humidification speed and reduces the rotating speed of blower fan 5, until grain heap 2
Water parameters gradient in internal each section narrows down to allowed band, then increase the rotating speed and air conditioner 104 of blower fan 5
Humidification speed；(2) when low humidity peak face and low moisture content peak face remove grain heap 2, and grain heap 2 inside water parameters ladder in each section
When degree is without departing from allowed band, central control module control blower fan 5 reduces ventilation until stopping；(3) when low humidity peak face
With low moisture content peak face remove grain heap 2, but grain heap 2 inside water parameters gradient in each section exceed allowed band when, central authorities' control
Molding block control blower fan 5 is turned to so as to change draft direction, until the water parameters gradient contracting inside grain heap 2 in each section
It is little to allowed band, be finally stopped ventilation.
Further, silo ventilating system can adopt the blower fan 5 of frequency conversion adjustable speed, wherein, the calculating of unit ventilation is public
Formula is：
In formula：Q-unit ventilation (m3/Kg·s)；
Cg-grain specific heat (KJ/Kg DEG C)；
ω-grain percentage of water loss (%)；
ρ-normal atmosphere (Pa)；
τ-ventilation duration (hour)；
tGrain 12 initial temperature (DEG C) of-grain heap；
tGrain 2- require the temperature (DEG C) that grain heap 2 is reached at the end of divulging information；
tAir inlet- warehouse entry air themperature (DEG C).
1 critical unit ventilation (m of table3/h·t)
Above-mentioned formula is described as follows：
During without departing from critical unit ventilation scope, blower fan 5 is aerated according to the numerical value that formula calculates gained；Beyond facing
During boundary's unit ventilation scope, blower fan 5 is aerated according to critical unit ventilation.For example：Precipitation ventilation is being carried out for Semen sojae atricolor
When, if being 11m according to the unit ventilation that formula is calculated3/ ht, as the precipitation unit ventilation of Semen sojae atricolor can not be less than 9m3/
Ht, therefore blower fan 5 is according to 11m3The numerical value ventilation of/ht；If being 8m according to the unit ventilation that formula is calculated3/ ht, and it is big
Bean precipitation unit ventilation can not be less than 9m3/ ht, therefore blower fan 5 is according to the 9m of critical unit ventilation3The numerical value of/ht leads to
Wind.
Finally it should be noted that：Various embodiments above only to illustrate technical scheme, rather than a limitation；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (5)
1. a kind of silo method of ventilation of silo ventilating system, it is characterised in that silo ventilating system includes that Temperature and Humidity is filled
Put, ventilation unit and central control module；
The temperature-humidity detecting device is used to detecting temperature parameter and humidity parameter inside grain heap, in warehouse outside air and warehouse
The temperature parameter and humidity parameter of air；
The ventilation unit includes upper vent, lower vent and the blower fan in warehouse, and the blower fan is arranged on the upper vent
And/or the lower vent, for driving air to flow in or out warehouse；
The central control module is connected with the temperature-humidity detecting device and the ventilation unit respectively；
The central control module is for the temperature parameter that detected according to the temperature-humidity detecting device and humidity parameter, and foundation
Different ventilation purposes controls opening and closing and steering and the air quantity of the blower fan of the upper vent and the lower vent, makes
Temperature parameter and humidity parameter in grain heap is maintained in preset range；The temperature-humidity detecting device include first sensor,
Second sensor and 3rd sensor；
The first sensor includes multiple detecting heads, is uniformly distributed in grain heap from top to bottom；
The detecting head of the second sensor is separately positioned in the air in warehouse outside the upper space and warehouse of grain heap；
The detecting head of the 3rd sensor is arranged at the lower vent, for detecting that the temperature of the lower vent air is joined
Number and humidity parameter；Including the air conditioner for being arranged at the lower vent, the air conditioner and central authorities' control
Module connects, for adjusting the humidity and temperature of air；The blower fan is the rotatable ventilation blower of bidirectional reversible；Silo method of ventilation bag
Include：According to the temperature parameter and humidity parameter of temperature-humidity detecting device detection, central control module is according to different ventilation purposes
The opening and closing of the upper vent and lower vent in control warehouse, and control steering and the air quantity of blower fan, make temperature in grain heap and
Humidity is maintained in preset range；Silo method of ventilation is specifically included：
Temperature parameter and humidity parameter, the temperature parameter of second sensor detection and humidity ginseng according to first sensor detection
Number, judge whether grain heap meets the ventilation condition lowered the temperature and allow precipitation, if satisfaction, control the upper vent and it is described under
Vent is opened；
According to the first sensor detection temperature parameter and humidity parameter, the second sensor detection temperature parameter and
Humidity parameter, temperature gradient direction and unit ventilation, and steering and the rotating speed of the blower fan are controlled, so that the blower fan
According to required unit ventilation or critical unit ventilation air feed, and according to along thermograde direction air feed；
Temperature parameter and humidity parameter, the temperature parameter of 3rd sensor detection and humidity according to first sensor detection
Parameter, judges whether grain heap air-flow cold front face and humidity peak face remove grain heap, if removing grain heap, controls the steering of the blower fan
And rotating speed, so that the temperature and humidity of grain heap is maintained in preset range, and the thermograde and moist gradient in grain heap does not have
Beyond allowed band.
2. a kind of silo method of ventilation of silo ventilating system, it is characterised in that silo ventilating system includes that Temperature and Humidity is filled
Put, ventilation unit and central control module；
The temperature-humidity detecting device is used to detecting temperature parameter and humidity parameter inside grain heap, in warehouse outside air and warehouse
The temperature parameter and humidity parameter of air；
The ventilation unit includes upper vent, lower vent and the blower fan in warehouse, and the blower fan is arranged on the upper vent
And/or the lower vent, for driving air to flow in or out warehouse；
The central control module is connected with the temperature-humidity detecting device and the ventilation unit respectively；
The central control module is for the temperature parameter that detected according to the temperature-humidity detecting device and humidity parameter, and foundation
Different ventilation purposes controls opening and closing and steering and the air quantity of the blower fan of the upper vent and the lower vent, makes
Temperature parameter and humidity parameter in grain heap is maintained in preset range；The temperature-humidity detecting device include first sensor,
Second sensor and 3rd sensor；
The first sensor includes multiple detecting heads, is uniformly distributed in grain heap from top to bottom；
The detecting head of the second sensor is separately positioned in the air in warehouse outside the upper space and warehouse of grain heap；
The detecting head of the 3rd sensor is arranged at the lower vent, for detecting that the temperature of the lower vent air is joined
Number and humidity parameter；Including the air conditioner for being arranged at the lower vent, the air conditioner and central authorities' control
Module connects, for adjusting the humidity and temperature of air；The blower fan is the rotatable ventilation blower of bidirectional reversible；Silo method of ventilation bag
Include：According to the temperature parameter and humidity parameter of temperature-humidity detecting device detection, central control module is according to different ventilation purposes
The opening and closing of the upper vent and lower vent in control warehouse, and control steering and the air quantity of blower fan, make temperature in grain heap and
Humidity is maintained in preset range；Silo method of ventilation is specifically included：
Temperature parameter and humidity parameter, the temperature parameter of second sensor detection and humidity ginseng according to first sensor detection
Number, judge grain heap whether meet cooling and water conservation ventilation condition, if meet, control the upper vent and it is described it is lower lead to
Open in air port；But if meeting cooling being unsatisfactory for the ventilation condition of water conservation, control air conditioner is opened；
According to the first sensor detection temperature parameter and humidity parameter, the second sensor detection temperature parameter and
Humidity parameter, temperature gradient direction and unit ventilation, and steering and the rotating speed of the blower fan are controlled, so that the blower fan
According to required unit ventilation or critical unit ventilation air feed, and according to reverse thermal gradient direction air feed；
Temperature parameter and humidity parameter, the temperature parameter of 3rd sensor detection and humidity according to first sensor detection
Parameter, judges whether grain heap air-flow cold front face and humidity peak face remove grain heap, if removing grain heap, controls the steering of the blower fan
And rotating speed so that the temperature and humidity of grain heap is maintained in preset range, and the thermograde and moist gradient of grain heap without departing from
Allowed band.
3. a kind of silo method of ventilation of silo ventilating system, it is characterised in that silo ventilating system includes that Temperature and Humidity is filled
Put, ventilation unit and central control module；
The temperature-humidity detecting device is used to detecting temperature parameter and humidity parameter inside grain heap, in warehouse outside air and warehouse
The temperature parameter and humidity parameter of air；
The ventilation unit includes upper vent, lower vent and the blower fan in warehouse, and the blower fan is arranged on the upper vent
And/or the lower vent, for driving air to flow in or out warehouse；
The central control module is connected with the temperature-humidity detecting device and the ventilation unit respectively；
The central control module is for the temperature parameter that detected according to the temperature-humidity detecting device and humidity parameter, and foundation
Different ventilation purposes controls opening and closing and steering and the air quantity of the blower fan of the upper vent and the lower vent, makes
Temperature parameter and humidity parameter in grain heap is maintained in preset range；The temperature-humidity detecting device include first sensor,
Second sensor and 3rd sensor；
The first sensor includes multiple detecting heads, is uniformly distributed in grain heap from top to bottom；
The detecting head of the second sensor is separately positioned in the air in warehouse outside the upper space and warehouse of grain heap；
The detecting head of the 3rd sensor is arranged at the lower vent, for detecting that the temperature of the lower vent air is joined
Number and humidity parameter；Including the air conditioner for being arranged at the lower vent, the air conditioner and central authorities' control
Module connects, for adjusting the humidity and temperature of air；The blower fan is the rotatable ventilation blower of bidirectional reversible；Silo method of ventilation bag
Include：According to the temperature parameter and humidity parameter of temperature-humidity detecting device detection, central control module is according to different ventilation purposes
The opening and closing of the upper vent and lower vent in control warehouse, and control steering and the air quantity of blower fan, make temperature in grain heap and
Humidity is maintained in preset range；Silo method of ventilation is specifically included：
Temperature parameter and humidity parameter, the temperature parameter of second sensor detection and humidity ginseng according to first sensor detection
Number, judges whether grain heap needs to reduce humidity, if desired, then control the upper vent and the lower vent is opened；
According to the first sensor detection temperature parameter and humidity parameter, the second sensor detection temperature parameter and
Humidity parameter, temperature gradient direction and unit ventilation, and steering and the rotating speed of the blower fan are controlled, so that the blower fan
According to required unit ventilation or critical unit ventilation air feed, and according to along thermograde direction air feed；
Temperature parameter and humidity parameter, the temperature parameter of 3rd sensor detection and humidity according to first sensor detection
Parameter, judges whether grain heap humidity peak face and humidity peak face remove grain heap, if remove grain heap, control the blower fan steering and
Rotating speed, so that the temperature and humidity of grain heap is maintained in preset range, and the thermograde and moist gradient of grain heap is without departing from fair
Perhaps scope.
4. a kind of silo method of ventilation of silo ventilating system, it is characterised in that silo ventilating system includes that Temperature and Humidity is filled
Put, ventilation unit and central control module；
The temperature-humidity detecting device is used to detecting temperature parameter and humidity parameter inside grain heap, in warehouse outside air and warehouse
The temperature parameter and humidity parameter of air；
The ventilation unit includes upper vent, lower vent and the blower fan in warehouse, and the blower fan is arranged on the upper vent
And/or the lower vent, for driving air to flow in or out warehouse；
The central control module is connected with the temperature-humidity detecting device and the ventilation unit respectively；
The central control module is for the temperature parameter that detected according to the temperature-humidity detecting device and humidity parameter, and foundation
Different ventilation purposes controls opening and closing and steering and the air quantity of the blower fan of the upper vent and the lower vent, makes
Temperature parameter and humidity parameter in grain heap is maintained in preset range；The temperature-humidity detecting device include first sensor,
Second sensor and 3rd sensor；
The first sensor includes multiple detecting heads, is uniformly distributed in grain heap from top to bottom；
The detecting head of the second sensor is separately positioned in the air in warehouse outside the upper space and warehouse of grain heap；
The detecting head of the 3rd sensor is arranged at the lower vent, for detecting that the temperature of the lower vent air is joined
Number and humidity parameter；Including the air conditioner for being arranged at the lower vent, the air conditioner and central authorities' control
Module connects, for adjusting the humidity and temperature of air；The blower fan is the rotatable ventilation blower of bidirectional reversible；Silo method of ventilation bag
Include：According to the temperature parameter and humidity parameter of temperature-humidity detecting device detection, central control module is according to different ventilation purposes
The opening and closing of the upper vent and lower vent in control warehouse, and control steering and the air quantity of blower fan, make temperature in grain heap and
Humidity is maintained in preset range；Silo method of ventilation is specifically included：
Temperature parameter and humidity parameter, the temperature parameter of second sensor detection and humidity ginseng according to first sensor detection
Number, judges conditioning and aeration condition whether is met inside grain heap, if meeting, controls the upper vent and the lower vent is beaten
Open；If being unsatisfactory for, control air conditioner is opened；
According to the first sensor detection temperature parameter and humidity parameter, the second sensor detection temperature parameter and
Humidity parameter, temperature gradient direction and unit ventilation, and steering and the rotating speed of the blower fan are controlled, so that the blower fan
According to required unit ventilation or critical unit ventilation air feed, and according to reverse thermal gradient direction air feed；
Temperature parameter and humidity parameter, the temperature parameter of 3rd sensor detection and humidity according to first sensor detection
Parameter, judges whether grain heap low humidity and low humidity peak face remove grain heap, if remove grain heap, control the blower fan steering and
Rotating speed, so that the temperature and humidity of grain heap is maintained in preset range, and the thermograde and moist gradient of grain heap is without departing from fair
Perhaps scope.
5. a kind of silo method of ventilation of the silo ventilating system according to any one of claim 1-4, it is characterised in that institute
Blower fan is stated for frequency conversion adjustable speed blower fan；The computing formula of unit ventilation is：
In formula：Q-unit ventilation（m3/Kg·s）；
Cg-grain specific heat（KJ/Kg°C）；
ω-grain percentage of water loss（%）；
ρ-normal atmosphere（Pa）；
τ-ventilation duration（Hour）；
tGrain 1- grain heap initial temperature（°C）；
tGrain 2- require the temperature that grain heap is reached at the end of divulging information（°C）；
tAir inlet- warehouse entry air themperature（°C）.
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| CN106933273B (en) * | 2015-12-29 | 2019-08-13 | 航天信息股份有限公司 | A kind of grain storage safety control system and method |
| CN105794428B (en) * | 2016-03-23 | 2018-02-09 | 安徽科杰粮保仓储设备有限公司 | Digitize grain depot intelligent aeration method |
| CN105993418A (en) * | 2016-05-16 | 2016-10-12 | 李桂杰 | Ventilation and cooling system used for grains and ventilation and cooling method thereof |
| CN106600183A (en) * | 2016-11-19 | 2017-04-26 | 河南智业科技发展有限公司 | Grain bin management system based on cloud management |
| CN108040622A (en) * | 2017-12-15 | 2018-05-18 | 天津市明伦电子技术股份公司 | Grain storehouse cooling ventilated control system and its method |
| CN109062296B (en) * | 2018-08-27 | 2020-12-11 | 辽宁工业大学 | Grain storage method based on temperature and humidity monitoring |
| CN110050593A (en) * | 2019-05-17 | 2019-07-26 | 河南兄弟科技发展有限公司 | The closed circulation heat-exchange cooling system of silo and its cool-down method |
| CN113519281B (en) * | 2021-07-16 | 2022-07-05 | 安徽省农业科学院农产品加工研究所 | High-moisture grain storage method |
| CN114711033B (en) * | 2022-04-27 | 2023-03-14 | 北京良安科技有限公司 | Circulation system in granary |
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| JP2004222505A (en) * | 2003-01-17 | 2004-08-12 | Matsushita Electric Works Ltd | Ventilating device of housing cabinet for root vegetable and housing cabinet for root vegetable |
| DE202006020351U1 (en) * | 2006-09-22 | 2008-05-08 | Wolf Verwaltungs Gmbh & Co. Kg | Ventilation device for moistening crops |
| CN201123268Y (en) * | 2007-11-28 | 2008-10-01 | 刘经天 | Automatic temperature controlling and ventilating apparatus for food storage |
| CN201533509U (en) * | 2009-06-10 | 2010-07-28 | 王允良 | Intelligent low-temperature grain storage automatic control system |
| CN203152064U (en) * | 2013-04-24 | 2013-08-28 | 中粮黄海粮油工业(山东)有限公司 | Automatic ventilation system for vertical cylindrical silo |
| CN104616466A (en) * | 2013-11-03 | 2015-05-13 | 西安扩力机电科技有限公司 | Grain bin wireless monitoring system |
| CN103885513A (en) * | 2014-03-19 | 2014-06-25 | 苏州边枫电子科技有限公司 | Temperature and humidity local host control system of granary |
| CN204612748U (en) * | 2015-03-24 | 2015-09-02 | 鹤壁德粮电子有限公司 | Photovoltaic wireless thermometric hygrometric device |
| CN204968613U (en) * | 2015-09-22 | 2016-01-20 | 北京之云科技有限公司 | Granary ventilation system |
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