CN208091180U - A kind of bidirectional ventilated drying equipment of grain - Google Patents
A kind of bidirectional ventilated drying equipment of grain Download PDFInfo
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- CN208091180U CN208091180U CN201820467946.2U CN201820467946U CN208091180U CN 208091180 U CN208091180 U CN 208091180U CN 201820467946 U CN201820467946 U CN 201820467946U CN 208091180 U CN208091180 U CN 208091180U
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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
- Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The utility model discloses a kind of bidirectional ventilated drying equipments of grain to realize circulation up and down and the heat recovery of drying room air by the structure for the first electric three passes air-valve being arranged, the second electric three passes air-valve leads to third electric three passes air-valve arbitrary two.In this way, the drying thickness of grain can be improved, the cost of stirring of grain heat-drying is reduced, energy consumption is reduced, increases economic efficiency.
Description
Technical field
The utility model is related to a kind of ventilation drying equipments, more particularly to a kind of bidirectional ventilated drying equipment of grain.
Background technology
Currently, grain postpartum mechanization degree of drying in China's is relatively low, and after grain harvest, still based on natural drying, by
It is influenced in by factors such as place and weathers, a large amount of high moisture grains in the short time cannot be dried in time, easy tod produce mould
The problems such as change, germination and insect pest, cause China's grain post-harvest loss rate generally higher.It is main for traditional heated-air drying equipment
Using coal-fired or fuel oil as heat source, drying medium temperature is higher, is influenced greatly on grain quality after drying, and fire coal causes dirt to environment
Dye.For the drying equipment using other heat resource forms, such as the heat source of heat pump, solar energy and other forms or in combination
Heat source, though having certain energy-saving effect, its common ground is all that can only carry out the ventilation drying of direction, or forward or inverse
To limited depth of grain layer can only be handled due to unidirectionally drying, and for handling a large amount of postpartum grain, the equipment used needs to occupy
Larger floor area, and drying time is long, the grain moisture content inhomogeneities after drying is poor, uniform to improve drying grain moisture content
Property, partially desiccated equipment need to carry out turning over shovel by grain shovelling machine or manually to processing grain during the drying process so that entire drying
Process is complex and cost is higher, and whole drying efficiency is poor.
For grain drying, mainly there are three the stages for process：Warm-up phase, constant-rate drying period and falling-rate periods of drying rank
Section.Wherein, warm-up phase reaches the temperature of moisture vaporization mainly to improve the temperature and moisture temperature of material, only few
Partial heat makes moisture vaporize, and the duration is short, and the length of warm-up phase depends on initial grain temperature, depth of grain layer, medium temperature
With the factors such as flow velocity；Constant-rate drying period heat is only used for evaporating surface moisture, and moisture diffusion resistance is small, the moisture inside grain
Continue to surface flow, grain moisture content uniformly declines, and grain temperature remains unchanged, and rate of drying reaches maximum value and remains unchanged；Drop
For fast drying stage moisture by being spread inside grain, rate is slower than the evaporation rate of grain surface moisture, the heating of grain surface, heat
It is consumed in evaporable water and heating grain, finally reaches equilibrium water conten.When rate of drying is equal to zero, material moisture reaches at this
Under the conditions of equilibrium water conten, temperature can rise to temperature identical with hot-air.For in Grain Drying Process, the constant rate of drying
Stage precipitation rate is maximum, the main free moisture removed in grain, and moisture is higher in dried medium that treated, for
Using the equipment of closed circulation drying, its humidity load that need to handle is larger, increases equipment energy consumption.And for falling rate drying period, with
It removes in grain and combines based on water, moisture diffusion resistance is big, and rate of drying is rapidly decreased to reduced levels in the later stage, and it is dry that treated
Moisture reduces in dry medium, and medium temperature is higher, and dry duration longest, and conventional hot blast is dried and is used completely
Fresh air is dried, and not to this, the stage carries out recuperation of heat processing, causes energy waste, required energy consumption big.
Utility model content
The goal of the invention of the utility model is：In view of the above problems, a kind of bidirectional ventilated drying of grain is provided
Equipment, solves that the existing grain heat-drying time is long, and drying efficiency is low, the high problem of energy consumption cost.
The technical solution adopted in the utility model is as follows：
A kind of bidirectional ventilated drying equipment of grain, including wind path switching system and control system, wind path switching system include
First electric three passes air-valve, the second electric three passes air-valve, third electric three passes air-valve, wind turbine, the first electric three passes air-valve include
The air ports B1, the air ports B2, the air ports B3, the second electric three passes air-valve include the air ports B4, the air ports B5, the air ports B6, third electric three passes wind
Valve includes the air ports B7, the air ports B8, the air ports B9, and wind turbine includes C1 air outlets, C2 air outlets；The air ports B1 of first electric three passes air-valve
It is connected with silo；The air ports B2 of first electric three passes air-valve are connected with the C1 air outlet ducts of wind turbine, the first electric three passes air-valve
The air ports B3 be connected with the air ports the B7 air duct of third electric three passes air-valve, the air ports B9 of third electric three passes air-valve are connected by air duct
It is connected to exhaust outlet, the air ports B8 of third electric three passes air-valve are connected by air duct with the air intake vent of wind turbine；Second electronic three
The C2 that the air ports B4 of ventilation valve are connected by air duct with silo, the air ports B5 of the second electric three passes air-valve pass through air duct and wind turbine
Air outlet duct is connected, and the air ports B6 of the second electric three passes air-valve are connected by air duct with lower exhaust outlet.
Further, the utility model discloses a kind of preferred structure of the bidirectional ventilated drying equipment of grain, the wind turbines
Air intake vent heat source and air filter are connected in turn by air duct, air filter passes through air duct and third electric three passes wind
The air ports B8 of valve connect, and air filter is connected with fresh wind port by air duct, fresh air air-valve, and fresh air wind is provided on fresh wind port
Valve；The air ports B1 of the first electric three passes air-valve are connected with the top air port of silo；The air ports B4 of second electric three passes air-valve
It is connected with grain bin bottom air port by air duct.
Further, the control system includes controller, is set to the first Temperature Humidity Sensor of silo inner top, if
The second Temperature Humidity Sensor, the grain moisture sensor being placed in grain heap are set to the air ports B1 of the first electric three passes air-valve
Third Temperature Humidity Sensor is set to the 4th Temperature Humidity Sensor in the air ports B4 of the second electric three passes air-valve；First humidity passes
Sensor, the second Temperature Humidity Sensor, grain moisture sensor, third Temperature Humidity Sensor, the 4th Temperature Humidity Sensor pass through electricity
Cable is connected with controller signals.
Further, the control system includes controller, frequency converter, wind path control switching circuit, the output of controller
End is connected with the input end signal of frequency converter, wind path control switching circuit, and the output end of frequency converter is electrically connected with wind turbine, and wind path is cut
The output end for changing control circuit is electrically connected with the first electric three passes air-valve, the second electric three passes air-valve, third electric three passes air-valve,
Fresh air air-valve is connected by cable with controller signals.
Further, the heat source includes one or more of heat pump, solar energy, electric energy, chemical energy.
Further, the silo is the one or more of drying tower, drying room, insulation chamber.
In conclusion by adopting the above-described technical solution, the utility model has the beneficial effects that：
1. it can be realized by setting wind path switching system and control system and positive and negative bidirectional ventilated drying and processing is carried out to grain,
Shovel is turned over without being carried out to grain in drying course, the drying efficiency of grain is high, and operating process is simple；Human cost is reduced, is carried
High economic benefit；
2. by being arranged, control system judges and intelligent control is, it can be achieved that dried medium recuperation of heat drying and processing, effectively
Efficiency of energy utilization is improved, it is energy saving.
Description of the drawings
Fig. 1 is Tthe utility model system structure diagram；
Fig. 2 is the reversed drying schematic diagram of the utility model；
Fig. 3 is the recuperation of heat drying schematic diagram of the utility model；
It is marked in figure：1 is the first electric three passes air-valve, and 2 be the second electric three passes air-valve, and 3 be lower exhaust outlet, and 4 be wind turbine,
5 be heat source, and 6 be air filter, and 7 be upper exhaust outlet, and 8 be third electric three passes air-valve, and 9 be fresh air air-valve, and 10 be fresh wind port,
11 be control system.
Specific implementation mode
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, the utility model includes a kind of bidirectional ventilated drying equipment of grain, including wind path switching system and control
System 11 processed, wind path switching system include the first electric three passes air-valve 1, the second electric three passes air-valve 2, third electric three passes air-valve
8, wind turbine 4, the first electric three passes air-valve 1 include the air ports B1, the air ports B2, the air ports B3, and the second electric three passes air-valve 2 includes B4 wind
Mouth, the air ports B5, the air ports B6, third electric three passes air-valve 8 include the air ports B7, the air ports B8, the air ports B9, wind turbine 4 include C1 air outlets,
C2 air outlets；First electric three passes air-valve 1, the second electric three passes air-valve 2, third electric three passes air-valve 8 are interconnected, in formation
Mutual logical circulation road down.The air ports B1 of first electric three passes air-valve 1 are connected with silo；The air ports B2 of first electric three passes air-valve 1 and wind
The C1 air outlet ducts of machine 4 are connected, the air ports B3 of the first electric three passes air-valve 1 and the air ports the B7 wind of third electric three passes air-valve 8
Road is connected, and the air ports B9 of third electric three passes air-valve 8 are connected with upper exhaust outlet 7, the B8 of third electric three passes air-valve 8 by air duct
Air port is connected by air duct with the air intake vent of wind turbine 4；The air ports B4 of second electric three passes air-valve 2 are connected by air duct with silo
Logical, the second electric three passes air-valve 2 the air ports B5 are connected by air duct with the C2 air outlet ducts of wind turbine 4, the second electric three passes wind
The air ports B6 of valve 2 are connected by air duct with lower exhaust outlet 3.Interconnected air duct is using hard air duct, due to positive system
At runtime there may be positive pressure or negative pressure inside air duct, hard air duct can guarantee the reliable and stable operation of system.
Further, the utility model discloses a kind of preferred structure of the bidirectional ventilated drying equipment of grain, the wind turbines 4
Air intake vent heat source 5 and air filter 6 are connected in turn by air duct, air filter 6 passes through air duct and third electronic three
The air ports B8 of ventilation valve 8 connect, and air filter 6 is connected with fresh wind port 10 by air duct, fresh air air-valve 9, are set on fresh wind port 10
It is equipped with fresh air air-valve 9；The air ports B1 of the first electric three passes air-valve 1 are connected with the top air port of silo；Second electric three passes
The air ports B4 of air-valve 2 are connected by air duct with grain bin bottom air port.Air filter 6 can go out the impurity in air, prevent sky
Dust in gas enters silo, pollutes grain.
Control system 11 includes controller, is set to the first Temperature Humidity Sensor of silo inner top, is set in grain heap
The second Temperature Humidity Sensor, grain moisture sensor, be set to the third humiture in the air ports B1 of the first electric three passes air-valve 1
Sensor is set to the 4th Temperature Humidity Sensor in the air ports B4 of the second electric three passes air-valve 2；First humidity sensor, second
Temperature Humidity Sensor, grain moisture sensor, third Temperature Humidity Sensor, the 4th Temperature Humidity Sensor pass through cable and controller
Signal is connected.Sensor is set, can detect that the working condition of entire drying course, and adjust for state.
Control system 11 includes controller, frequency converter, wind path control switching circuit, the output end of controller and frequency converter,
The input end signal of wind path control switching circuit is connected, and the output end of frequency converter is electrically connected with wind turbine 4, wind path control switching circuit
Output end be electrically connected with the first electric three passes air-valve 1, the second electric three passes air-valve 2, third electric three passes air-valve 8, fresh air wind
Valve 9 is connected by cable with controller signals.It can be achieved with automatically controlling for equipment in this way.
Carrying out practically process, including three kinds of operational modes：
One, the row's of serving drying pattern under：As shown in Figure 1, system starts, select air supply pattern under by control system 11
The row's of serving drying pattern；Controller controls air-valve action, and fresh air air-valve 9 is opened, and it is logical that the first electric three passes air-valve 1 closes the directions B2
Road；Second electric three passes air-valve 2 closes the directions B6 channel；Third electric three passes air-valve 8 closes the directions B8 channel；Wind turbine 4 is run；
Heat source 5 starts.Outdoor fresh air enters system through fresh air air-valve 9, is filtered using air filter 6, and heat exchange is generated with heat source 5
Temperature improves afterwards, enters silo, hot-air by the second electric three passes air-valve 2 downwards through 4 pressurization of wind turbine into wind turbine 4
Silo higher moisture grain is flowed through from the bottom to top, becomes Hot wet air heating after grain is dried, then pass through the first electric three passes
Air-valve 1 and third electric three passes air-valve 8, drain into outdoor from upper exhaust outlet 7, recycle successively.Control system 11 passes through to handling grain
Drinking water point and ambient temperature and humidity parameter judge, carry out next step drying and processing.
Two, lower row is sent to dry pattern on：As shown in Fig. 2, by control system 11 to processing processing grain moisture content and surrounding
Humiture parameter judges that system adjust automatically air supply pattern is that lower row is above sent to dry pattern；Controller controls air-valve action, fresh air
Air-valve 9 is opened, and the first electric three passes air-valve 1 closes the directions B3 channel；Second electric three passes air-valve 2 closes the directions B5 channel；The
Three electric three passes air-valves 8 close the directions B8 channel；Wind turbine 4 is run；Heat source 5 starts.Outdoor fresh air enters through fresh air air-valve 9
System is filtered using air filter 6, and temperature improves after generating heat exchange with heat source 5, into wind turbine 4, is pressurizeed and is made through wind turbine 4
With passing upward through the first electric three passes air-valve 1 and carry out silo, hot-air from top to bottom flows through grain in silo, is carried out to grain
Become Hot wet air heating after drying, then by the second electric three passes air-valve 2, drains into outdoor from lower exhaust outlet 3, recycle successively.Control
System 11 is automatic to carry out next step drying and processing by the way that treated, aerial temperature and humidity judges.
Three, pattern is dried in recuperation of heat：As shown in figure 3, to treated, aerial temperature and humidity judges by control system 11, when
When drying reaches grain slow precipitation stage, air supply pattern is automatically that pattern is dried in recuperation of heat by control system；Air-valve acts, newly
9 part of wind air-valve is opened, and the first electric three passes air-valve 1 closes the directions B2 channel；It is logical that second electric three passes air-valve 2 closes the directions B5
Road；Third electric three passes air-valve 8 closes the directions B9 channel；Moisture exhausting port is opened on silo；Fan operation；Heat source starts.Part room
Outer fresh air enters system after fresh air air-valve 9 is mixed with part return air, is filtered using air filter 6, heat is generated with heat source 5
Temperature improves after exchange, into wind turbine 4, through 4 pressurization of wind turbine, enters silo, heat by the second electric three passes air-valve 2 downwards
Air flows through grain in silo from the bottom to top, becomes Hot wet air heating after grain is dried, and a part of Hot wet air heating is from silo
The discharge of upper moisture exhausting port, a part by the first electric three passes air-valve 1 and third electric three passes air-valve 8, return to fresh air wind feeding section with
Fresh air mixes, and recycles successively.Control system 11 is by the way that treated, aerial temperature and humidity judges, when air blow and return humiture reaches one
When cause, stopping drying being carried out automatically, and drying course is completed.
Embodiment 1：
On the basis of embodiment of above, heat source 5 is that solar energy and heat pump are combined and carried out, using too when solar energy is rich
Positive energy heat supply, is energized when solar energy is insufficient to using heat pump.Silo is drying room.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (6)
1. a kind of bidirectional ventilated drying equipment of grain, it is characterised in that：Including wind path switching system and control system（11）, wind path
Switching system includes the first electric three passes air-valve（1）, the second electric three passes air-valve（2）, third electric three passes air-valve（8）, wind turbine
（4）, the first electric three passes air-valve（1）Including the air ports B1, the air ports B2, the air ports B3, the second electric three passes air-valve（2）Including B4 wind
Mouth, the air ports B5, the air ports B6, third electric three passes air-valve（8）Including the air ports B7, the air ports B8, the air ports B9, wind turbine（4）Go out including C1
Air port, C2 air outlets；First electric three passes air-valve（1）The air ports B1 be connected with silo；First electric three passes air-valve（1）B2 wind
Mouth and wind turbine（4）C1 air outlet ducts be connected, the first electric three passes air-valve（1）The air ports B3 and third electric three passes air-valve
（8）The air ports B7 air duct be connected, third electric three passes air-valve（8）The air ports B9 upper exhaust outlet is connected with by air duct（7）, third
Electric three passes air-valve（8）The air ports B8 pass through air duct and wind turbine（4）Air intake vent be connected；Second electric three passes air-valve（2）'s
The air ports B4 are connected by air duct with silo, the second electric three passes air-valve（2）The air ports B5 pass through air duct and wind turbine（4）C2 go out
Air port air duct is connected, the second electric three passes air-valve（2）The air ports B6 pass through air duct and lower exhaust outlet（3）It is connected.
2. a kind of bidirectional ventilated drying equipment of grain as described in claim 1, it is characterised in that：The wind turbine（4）Inlet air
Mouth is connected with heat source in turn by air duct（5）And air filter（6）, air filter（6）Pass through air duct and third electronic three
Ventilation valve（8）The air ports B8 connection, air filter（6）It is connected with fresh wind port by air duct（10）, fresh air air-valve（9）, fresh air
Mouthful（10）On be provided with fresh air air-valve（9）；The first electric three passes air-valve（1）The air ports B1 and silo top air port phase
Even；Second electric three passes air-valve（2）The air ports B4 be connected with grain bin bottom air port by air duct.
3. a kind of bidirectional ventilated drying equipment of grain as described in claim 1, it is characterised in that：The control system（11）Packet
Controller is included, the first Temperature Humidity Sensor of silo inner top is set to, the second Temperature Humidity Sensor, the grain being set in grain heap
Drinking water sub-sensor is set to the first electric three passes air-valve（1）The air ports B1 third Temperature Humidity Sensor, be set to second electricity
Dynamic three-way air valve（2）The air ports B4 the 4th Temperature Humidity Sensor；First humidity sensor, the second Temperature Humidity Sensor, grain
Moisture transducer, third Temperature Humidity Sensor, the 4th Temperature Humidity Sensor are connected by cable with controller signals, fresh air air-valve
（9）It is connected with controller signals by cable.
4. a kind of bidirectional ventilated drying equipment of grain as claimed in claim 3, it is characterised in that：The control system（11）Packet
Include controller, frequency converter, wind path control switching circuit, the output end of controller and frequency converter, wind path control switching circuit it is defeated
Enter end signal to be connected, the output end and wind turbine of frequency converter（4）Electrical connection, the output end of wind path control switching circuit and first electronic
Three-way air valve（1）, the second electric three passes air-valve（2）, third electric three passes air-valve（8）Electrical connection.
5. a kind of bidirectional ventilated drying equipment of grain as described in claim 1, it is characterised in that：The heat source（5）Including heat
One or more of pump, solar energy, electric energy, chemical energy.
6. a kind of bidirectional ventilated drying equipment of grain as described in claim 1, it is characterised in that：The silo be drying tower,
The one or more of drying room, insulation chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820467946.2U CN208091180U (en) | 2018-03-30 | 2018-03-30 | A kind of bidirectional ventilated drying equipment of grain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820467946.2U CN208091180U (en) | 2018-03-30 | 2018-03-30 | A kind of bidirectional ventilated drying equipment of grain |
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| Publication Number | Publication Date |
|---|---|
| CN208091180U true CN208091180U (en) | 2018-11-13 |
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ID=64057935
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820467946.2U Active CN208091180U (en) | 2018-03-30 | 2018-03-30 | A kind of bidirectional ventilated drying equipment of grain |
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| CN (1) | CN208091180U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332550A (en) * | 2018-03-30 | 2018-07-27 | 成都朗博旺科技发展有限公司 | A kind of bidirectional ventilated drying equipment of grain |
-
2018
- 2018-03-30 CN CN201820467946.2U patent/CN208091180U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108332550A (en) * | 2018-03-30 | 2018-07-27 | 成都朗博旺科技发展有限公司 | A kind of bidirectional ventilated drying equipment of grain |
| CN108332550B (en) * | 2018-03-30 | 2023-11-10 | 成都朗博旺科技发展有限公司 | Grain bidirectional ventilation drying equipment |
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