CN107166940A - Lossless electric-type point airduct drying system and its control method - Google Patents
Lossless electric-type point airduct drying system and its control method Download PDFInfo
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- CN107166940A CN107166940A CN201710458803.5A CN201710458803A CN107166940A CN 107166940 A CN107166940 A CN 107166940A CN 201710458803 A CN201710458803 A CN 201710458803A CN 107166940 A CN107166940 A CN 107166940A
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- 238000001035 drying Methods 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000009826 distribution Methods 0.000 claims abstract description 39
- 230000009471 action Effects 0.000 claims abstract description 6
- 239000004744 fabric Substances 0.000 claims description 9
- 239000002028 Biomass Substances 0.000 abstract description 19
- 238000002485 combustion reaction Methods 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 description 98
- 238000010926 purge Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 9
- 239000000446 fuel Substances 0.000 description 8
- 239000003245 coal Substances 0.000 description 7
- 230000007613 environmental effect Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
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- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000813 microbial effect Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 208000035126 Facies Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
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- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/30—Wind motors specially adapted for installation in particular locations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
-
- 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
Abstract
The present invention discloses a kind of lossless electric-type point airduct drying system and its control method.The lossless electric-type point airduct drying system includes：Wind energy converter, for natural wind to be converted into mechanical rotation energy, the output end with output rotary action power；Air-supply arrangement, is connected to the output end of wind energy converter, and drive rotation by wind energy converter；Divide airduct air-distribution device, it is connected to the air-supply end of air-supply arrangement, air-supply for distributing air-supply arrangement, airduct air-distribution device is divided to include air intake house steward and the multiple first point of wind branch pipe being connected in parallel on air intake house steward, the first venthole is provided with first point of wind branch pipe, the air intake of each first point of wind branch pipe is provided with the control valve for controlling first point of wind branch pipe air quantity.According to the lossless electric-type of the present invention point airduct drying system, energy consumption is few, and biomass can be dried, and improves biomass combustion efficiency and heat endurance.
Description
Technical field
The present invention relates to biomass power generation dry materials technical field, in particular to a kind of lossless electric-type point airduct
Drying system and its control method.
Background technology
At present, the energy and environmental problem turn into the focus of global concern, and energy shortage problem is long-standing problem mankind society
One of subject matter that can develop.Oil, coal, natural gas are still the main source of fuel at present.
With the increasingly depleted of fossil energy and being on the rise for environmental problem, clean renewable resources have been developed
As urgent problem.In face of this severe form, new alternative energy source is found in mankind's an urgent demand, is that sustainable development is sought
Obtain road.In this context, biomass energy is as the regenerative resource that uniquely can be stored and transport, and it is efficiently changed and can be clean
The advantage utilized, by the common concern of various countries, develops Biomass Energy Resources extremely urgent.
In China, using coal as the Industrial Boiler of main fuel and boiler for domestic, because it is big in social production and life
Amount is used, and not only causes energy waste, and the influence of very severe is caused to environment.According to statistics：China arranges every year
In the pollutant for entering air, 80% CO2,79% dust, 87% SO2,69% NOx derive from the direct burning of coal.
For this situation, in order to improve boiler thermal output and reduce disposal of pollutants, Industrial Boiler and auxiliary products structure are being improved
Meanwhile, the situation of the long-term burning raw coal of Industrial Boiler should be changed simultaneously, developed and promoted biomass molding fuel to be economical and have
The approach of effect.Biomass fuel combustion performance after shaping is greatly improved, and utilization ratio is improved, while being easy to accumulating, is expanded
Big application, and its calorific value worked as with some regional grate furnaces of China with coal facies.Biomass fuel also have volatile matter it is high,
Easy firing, flying dust are few, deslagging is few, carbon dioxide zero-emission, SO2 and NOx emission it is low, reduction heavy metal contaminants discharge, ash
Slag can the excellent environmental protection characteristic such as returning to the field, green energy resource can be referred to as.Biomass molding fuel source is sufficient, economical, is manufactured into
This is cheap, and the raw coal more surging than present price and moulded coal have larger price advantage, beneficial to promoting the use of.Biomass energy is can
The renewable sources of energy, in today of energy worsening shortages, developing biomass energy also has great energy strategy meaning.
However, because biomass moisture itself is big, calorific value is low, volatile matter is high, heat endurance is poor, the low characteristic of burning-point, its
Influence of the middle moisture to its property is more protruded, and typically enters the water content of stove biomass 45% or so, when directly burning,
Ignition temperature can be reduced, increases flue gas loss, boiler thermal output is reduced, increases operation cost.
The content of the invention
A kind of lossless electric-type point airduct drying system and its control method are provided in the embodiment of the present invention, energy consumption is few,
Biomass can be dried, improve biomass combustion efficiency and heat endurance.
To achieve the above object, the embodiment of the present invention provides a kind of lossless electric-type point airduct drying system, including：Wind energy turns
Changing device, for natural wind to be converted into mechanical rotation energy, the output end with output rotary action power；Air-supply arrangement, connection
Rotation is driven to the output end of wind energy converter, and by wind energy converter；Divide airduct air-distribution device, be connected to air-supply arrangement
Air-supply end, the air-supply for distributing air-supply arrangement, point airduct air-distribution device includes air intake house steward and to be connected in air intake in parallel total
The first venthole, the air intake of each first point of wind branch pipe are provided with multiple first point of wind branch pipe on pipe, first point of wind branch pipe
It is provided with the control valve for controlling first point of wind branch pipe air quantity.
Preferably, wind energy converter includes wind blade, and air-supply arrangement includes air blast blower fan, wind blade drive connection
To air blast blower fan, and air blast blower fan is driven to rotate.
Preferably, connected between wind blade and air blast blower fan by gearbox, gearbox is used to improve air blast blower fan
Rotating speed.
Preferably, 2 times of the radius of gyration of wind blade more than or equal to the radius of gyration of air blast blower fan.
Preferably, the rotating shaft of wind blade is vertically arranged, and the rotating shaft of air blast blower fan is vertically arranged；Or, turn of wind blade
Axle is horizontally disposed with, and the rotating shaft of air blast blower fan is horizontally disposed with；Or, the rotating shaft of wind blade is vertically arranged, the rotating shaft water of air blast blower fan
It is flat to set；Or, the rotating shaft of wind blade is horizontally disposed with, the rotating shaft of air blast blower fan is vertically arranged.
Preferably, divide the position of airduct air-distribution device in the horizontal direction adjustable.
Preferably, divide cloth set direction position of the airduct air-distribution device along multiple first point of wind branch pipe adjustable.
Preferably, airduct air-distribution device is divided also to include the end point wind branch pipe for being arranged on air-supply end, end point wind branch pipe
Along radially extending for first point of wind branch pipe, and wind branch pipe is axially disposed for end point multiple ventholes of venthole second.
Preferably, each end point wind branch pipe around own torque rotatably arranged with.
According to another aspect of the present invention there is provided a kind of control method of lossless electric-type point airduct drying system, including：
Detect the air quantity of each first point of wind branch pipe region；When the air quantity for detecting one or more first point of wind branch pipe regions
During less than default air quantity, the control valve opening on one or more first point of wind branch pipe is increased；Or, reduce other first point of wind
The control valve opening of branch pipe or the control valve for closing other first point of wind branch pipe；Or, reduce the control of other first point of wind branch pipe
The control valve opening on one or more first point of wind branch pipe is increased while valve opening.
Preferably, the control method of lossless electric-type point airduct drying system also includes：When detecting each first point of wind branch pipe
When the air quantity of region is more than or equal to default air quantity, the temperature of each first point of wind branch pipe region is detected；When detecting
When the temperature of one or more first point of wind branch pipe regions is more than preset temperature, one or more first point of wind branch are increased
Control valve opening on pipe；Or, reduce the control valve opening of other first point of wind branch pipe or close other first point of wind branch pipe
Control valve；Or, one or more first point of wind branch pipe are increased while reducing the control valve opening of other first point of wind branch pipe
On control valve opening.
Preferably, the control method of lossless electric-type point airduct drying system also includes：Detect drying system run time；When
When drying system run time reaches preset time, arragement direction of the control point airduct air-distribution device along first point of wind branch pipe is moved
Dynamic pre-determined distance.
Preferably, the control method of lossless electric-type point airduct drying system also includes：Detect drying system run time；When
When drying system run time reaches preset time, control end point wind branch pipe rotates predetermined angle around own torque.
In accordance with a further aspect of the present invention there is provided a kind of control method of lossless electric-type point airduct drying system, including：
Detect the air quantity in air intake house steward；When detecting the air quantity in air intake house steward less than default air quantity, Part I first is opened
The control valve divided on wind branch pipe, the control valve closed on first point of wind branch pipe of other parts, and run the t1 times；Open second
The control valve divided on first point of wind branch pipe, the control valve closed on Part II first point of wind branch pipe of outer other parts, and run
T2 times, wherein first point of wind branch pipe of first point of wind branch pipe of Part I and Part II is different；Each several part first is controlled successively
The control valve divided on wind branch pipe；After the control valve on all first point of wind branch pipes is opened once, all first are opened
The control valve divided on wind branch pipe, carries out low wind speed drying.
Apply the technical scheme of the present invention, lossless electric-type point airduct drying system includes：Wind energy converter, for incite somebody to action oneself
Right wind is converted to mechanical rotation energy, the output end with output rotary action power；Air-supply arrangement, is connected to wind energy converter
Output end, and rotation is driven by wind energy converter；Divide airduct air-distribution device, be connected to the air-supply end of air-supply arrangement, for dividing
Air-supply with air-supply arrangement, point airduct air-distribution device includes air intake house steward and multiple first points be connected in parallel on air intake house steward
Be provided with the first exhaust vent on wind branch pipe, first point of wind branch pipe, the air intake of each first point of wind branch pipe be provided with control this first
Divide the control valve of wind branch pipe air quantity.The drying system directly converts wind energy into machine during whole material purging is dried
Tool rotates energy, and air then is converted into the air energy with certain pressure by mechanical rotation active force, passes through blowing for air
Material is swept, the drying of material is realized, during entirely drying, any electric power is not consumed, natural wind energy, energy consumption is only utilized
Few, environmental protection and energy saving can carry out efficient drying to material, improve biomass combustion efficiency and heat endurance.
Brief description of the drawings
Fig. 1 is the structural representation of the end point wind branch pipe of point airduct air-distribution device of the embodiment of the present invention；
Fig. 2 is the dimensional structure diagram of the end point wind branch pipe of point airduct air-distribution device of the embodiment of the present invention；
Fig. 3 is the structural representation of point airduct air-distribution device of one embodiment of the invention；
Fig. 4 is the structural representation of point airduct air-distribution device of another embodiment of the present invention；
Fig. 5 is the structural representation of the lossless electric-type point airduct drying system of the embodiment of the present invention；
Fig. 6 is the control flow chart of the lossless electric-type point airduct drying system of the embodiment of the present invention.
Description of reference numerals：1st, air intake house steward；2nd, first point of wind branch pipe；3rd, the first venthole；4th, end point wind branch pipe；5、
Second venthole；6th, control valve；7th, wind blade；8th, air blast blower fan；9th, gearbox.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but not as the limit to the present invention
It is fixed.
With reference to shown in referring to Fig. 1 to Fig. 5, embodiments in accordance with the present invention, lossless electric-type point airduct drying system includes：Wind
Energy conversion equipment, for natural wind to be converted into mechanical rotation energy, the output end with output rotary action power；Air-supply arrangement,
The output end of wind energy converter is connected to, and rotation is driven by wind energy converter；Divide airduct air-distribution device, be connected to air-supply
The air-supply end of device, the air-supply for distributing air-supply arrangement.
The drying system directly converts wind energy into mechanical rotation energy, then during whole material purging is dried
Air is converted into by the air energy with certain pressure by mechanical rotation active force, by the purging material of air, thing is realized
The drying of material, during entirely drying, any electric power is not consumed, natural wind energy is only utilized, energy consumption is few, environmental protection and energy saving,
Efficient drying can be carried out to material, improve biomass combustion efficiency and heat endurance.
Preferably, wind energy converter includes wind blade 7, and air-supply arrangement includes air blast blower fan 8, and wind blade 7 is driven
Air blast blower fan 8 is connected to, and drives air blast blower fan 8 to rotate.Wind blade 7 is blade of wind-driven generator, can be preferably by certainly
Right wind energy is converted into the mechanical energy rotated, improves energy conversion efficiency so that wind blade 7 can preferably drive air blast blower fan
8 air blast, the air energy of abundance is provided for dry materials.Air blast blower fan is, for example, turbofan or axial flow blower.
Preferably, connected between wind blade 7 and air blast blower fan 8 by gearbox 9, gearbox 9 is used to improve air blast wind
The rotating speed of machine 8.In general, the radius of wind blade 7 is larger, correspondingly, rotating speed is also relatively slow, if keep wind blade 7 with
The rotating speed of air blast blower fan 8 is identical, then the rotating speed of air blast blower fan 8 can be caused relatively low, and air-supply wind-force is smaller, and air quantity is smaller.Gearbox 9
The rotation ratio between wind blade 7 and air blast blower fan 8 can be adjusted, the rotation wind speed of air blast blower fan 8 is improved, so as to realize
The compressed air with certain blast can be produced under gentle breeze, material is transported to, the purging to material and drying is realized.Become
Fast case 9 is, for example, speed-changing gear box, or other stepless speed regulations.Air blast blower fan 8 herein can also use axle stream
Blower fan etc. is replaced.
Preferably, the radius of gyration of wind blade 7 can pass through more than or equal to 2 times of the radius of gyration of air blast blower fan 8
The radius of gyration of larger wind blade 7 provides enough rotational energies so that wind blade 7 can more efficiently drive drum
Wind blower fan 8 rotates that there is provided enough kinetic energy.
Preferably, the rotating shaft of wind blade 7 is vertically arranged, and the rotating shaft of air blast blower fan 8 is vertically arranged；Or, wind blade 7
Rotating shaft is horizontally disposed with, and the rotating shaft of air blast blower fan 8 is horizontally disposed with；Or, the rotating shaft of wind blade 7 is vertically arranged, turn of air blast blower fan 8
Axle is horizontally disposed with；Or, the rotating shaft of wind blade 7 is horizontally disposed with, the rotating shaft of air blast blower fan 8 is vertically arranged.Above-mentioned various modes
The wind energy suffered by wind blade 7 successfully can be converted into mechanical rotation energy, realize preferable energy conversion, it is ensured that right
The air handling capacity of material.When the rotating shaft of wind blade 7 is vertical with the rotating shaft of air blast blower fan 8, typically pass through cone
Transferring kinetic energy is realized in gear drive.
Preferably, wind apparatus includes air intake house steward 1 and first point of wind branch pipe 2, and first point of wind branch pipe 2 is connected to air intake house steward
1, the first venthole 3 is provided with first point of wind branch pipe 2.
When material is dried, it can be stretched into by air intake house steward 1 and first point of wind branch pipe 2 inside material, will be outer
Boundary's air is sent to inside material, so that air can be contacted inside material with material so that material and air
Between have and more fully contact, air can be made more quickly and easily to take away the water in material in flow process
Point, material is dried, the purging of effective penetrability is realized, while can also quickly be taken away by entering the air in material
Internal high temperature produced by solid accumulation, it is to avoid material spontaneous combustion, improves dry materials efficiency, and improve the safety of material storage
Property.
Preferably, multiple first point of wind branch pipe 2 are connected in parallel on air intake house steward 1, can admit air into air intake total
After pipe 1, quickly each first point of wind branch pipe 2 can be assigned to by average mark, so that air can be quick through first point of wind branch pipe 2
Reach inside material everywhere, material various places inside is radiated and dried, improve drying efficiency.It is of course also possible to only
The air that air intake house steward 1 is transmitted is sent to inside material using first point of wind branch pipe 2.
Preferably, first point of wind branch pipe 2 is radially connected on air intake house steward 1, and end is additionally provided with each first point of wind branch pipe 2
The second venthole 5 is provided with end point wind branch pipe 4, end point wind branch pipe 4.In general, air enters after air intake house steward 1,
It is allocated by first point of wind branch pipe 2, is merely able to along on first point of place path of wind branch pipe 2 carry out air distribution, is limited
In the quantity and arrangement mode of first point of wind branch pipe 2, when material region is larger, first point of subregion wind branch pipe 2 is had
Air-supply can not reach, drying and radiating of the influence air to material, it is therefore desirable to proceed on first point of wind branch pipe 2 point
Wind, so as to expand flow of air so that air can more fully reach the regional in material, is carried out with material
More fully contact, improve drying efficiency and the reduction Microbial consumption of material.End point wind branch pipe 4 can along with
The direction that the bearing of trend of first point of wind branch pipe 2 is different extends, so that the place for being difficult to reach in first point of wind branch pipe 2, also may be used
To be blown by end point wind branch pipe 4, expand the blowing range and air supplying distance of point airduct air-distribution device, easily facilitate reality
Region-wide air-supply inside existing material, so that convenient discharge moisture, realizes drying, while microbial activities can be reduced, is reduced
Carbon source is consumed, calorific value when improving material in terms of two burns.
Preferably, the caliber of first point of wind branch pipe 2 is less than the caliber of air intake house steward 1, and the caliber of end point wind branch pipe 4 is less than
The caliber of first point of wind branch pipe 2.Because the quantity of first point of wind branch pipe 2 is more than the quantity of air intake house steward 1, end point wind branch pipe 4
Quantity of the quantity more than first point of wind branch pipe 2, therefore, in order to ensure that air is assigned to after each branch pipe, still with enough
Blast and wind speed, more efficiently material can be dried, it is necessary to ensure that air enters first point from air intake house steward 1
During wind branch pipe 2, blast will not significantly reduce, and the caliber of first point of wind branch pipe 2 is set smaller than to the caliber of air intake house steward 1, end
The caliber of end point wind branch pipe 4 is set smaller than the caliber of first point of wind branch pipe 2, it becomes possible to conveniently realize this purpose.It is preferred that
Ground, the total cross-sectional area of all first point of wind branch pipes 2 is equal to the total cross-sectional area of air intake house steward 1, all ends point wind branch pipe 4
Total cross-sectional area is equal to the total cross-sectional area of first point of wind branch pipe 2 so that air in the assignment procedure, blast and wind speed all without
There is great fluctuation process, and improved the flow efficiency of air, and improved the uniformity of air distribution and the stability of flow velocity.
Preferably, on each first point of wind branch pipe 2 along its length on be arranged at intervals with multiple ends point wind branch pipe 4,
Each end point radially extending along first point of wind branch pipe 2 where it of wind branch pipe 4.Wind branch pipe 4 is divided along each first in multiple ends
The length direction of wind branch pipe 2 is divided to be arranged at intervals, it is possible to ensure that air is more uniformly distributed to each end point wind branch pipe 4,
The space for enabling to end to be divided to wind branch pipe 4 to be more efficiently delivered to air between two connected first point of wind branch pipes 2,
The heat exchange efficiency of air and material is improved, drying efficiency of the air to material is improved.
Certainly, end point can also set a number of other branch pipes between wind branch pipe 4 and first point of wind branch pipe 2, so as to enter one
Blowing range of the step increase air in material, it is ensured that drying effect of the air to material.
Preferably, multiple first ventholes 3 are provided with first point of wind branch pipe 2, the first venthole 3 is along first point of wind branch pipe
2 peripheral distribution；And/or, multiple second ventholes 5 are provided with first point of wind branch pipe 2, the second venthole 5 divides wind along end
The peripheral distribution of branch pipe 4.The first venthole 3 on first point of wind branch pipe 2 can only divide the company of realization between wind branch pipe 4 end
Connect, can also realize that the region passed through to first point of wind branch pipe 2 is conveyed while connection between the wind branch pipe 4 of end point
Air.Because the first venthole 3 is in the peripheral distribution of first point of wind branch pipe 2, therefore it can be blown along the circumference of first point of wind branch pipe 2
Wind, while these first ventholes 3 are also along the axially extending of first point of wind branch pipe 2 so that the first venthole 3 spread all over it is whole
The surface of individual first point of wind branch pipe 2, forms greater area of air-out, and the cloth demeanour for further improving air-distribution device is enclosed.Herein
Set-up mode of two ventholes 5 on the wind branch pipe 4 of end point is similar, and effect is also similar.Certainly, the second venthole 5 is in end point
Set-up mode on wind branch pipe 4 can also use other modes, such as arrange only in the axial direction not circumferentially.
Preferably, multiple first ventholes 3 are provided with first point of wind branch pipe 2, multiple first ventholes 3 are along gas stream
Dynamic direction aperture gradually increases；And/or, it is provided with multiple second ventholes 5, multiple second ventholes 5 on the wind branch pipe 4 of end point
Gradually increase along gas flow direction aperture.During general operation, point airduct top blast is larger, and bottom blast is smaller, each point
Venthole on airduct gradually increases along gas flow direction, it is possible to ensure each point of airduct along its length direction at each
The air output of position is consistent substantially, so as to ensure the uniformity of dry materials.
Preferably, multiple first ventholes 3 are provided with first point of wind branch pipe 2, multiple first ventholes 3 are along gas stream
Dynamic direction pitch of holes is gradually reduced；And/or, it is provided with multiple second ventholes 5, multiple second outlets on the wind branch pipe 4 of end point
Hole 5 is gradually reduced along gas flow direction pitch of holes.In the case of consistent in the aperture of the first venthole 3, pitch of holes is gradually
Reduce, it is possible to so that hole density gradually increases along air-flow direction, so that in the case where blast is gradually reduced,
Still can substantially it be consistent in the air output on whole first point of wind branch pipe 2, it is ensured that the uniformity of dry materials.Equally
, it is consistent in the aperture of the second venthole 5 in the case of, pitch of holes is gradually reduced, it is possible to so that hole density is along air stream
Dynamic direction gradually increases, so that in the case where blast is gradually reduced, still can be on the wind branch pipe 4 of whole end point
Air output is consistent substantially, it is ensured that the uniformity of dry materials.
Preferably, multiple first ventholes 3 are provided with first point of wind branch pipe 2, first point of wind branch pipe 2 divides along its length
For multiple air-out regions, the aperture of the first venthole 3 in air-out region is identical, along air-flow direction, each air-out
The aperture of the first venthole 3 in region gradually increases；And/or, multiple second ventholes 5 are provided with the wind branch pipe 4 of end point,
End point wind branch pipe 4 is divided into multiple air-out regions along its length, the aperture phase of the second venthole 5 in air-out region
Together, along air-flow direction, the aperture of the second venthole 5 in each air-out region gradually increases.
Because the air-out area in each air-out region is matched with the air-out region present position, therefore ensure that
The air output in each air-out region is kept substantially unanimously, still can effectively ensure the uniformity of dry materials.
Preferably, the porch of at least one first point of wind branch pipe 2 is provided with control valve 6.For material, due to it
Packed structures of various pieces etc. are simultaneously differed, therefore do not ensure that the humidity and temperature of each position inside material are uniformly divided
Cloth, this is accomplished by that air quantity is adjusted according to temperature and humidity actual inside material, so that the temperature inside material
Degree control is more accurate, and humidity regulation is more efficient.By the openings of sizes or switch that control control valve 6, it is possible to effectively
The air force on first point of wind branch pipe 2 at the place of control valve 6 is controlled, so as to more need to entering each first point of wind
The air quantity of branch pipe 2 is adjusted so that the allocation of the amount of air of air-distribution device is more reasonable, so that ensure that dry materials are better,
Radiating effect is more preferable.
Preferably, air intake house steward 1 is vertically arranged, and vertically spaced horizontal is set multiple first point of wind branch pipe 2, and first
Wind branch pipe 2 is divided to be set along the setting direction spaced horizontal of air intake house steward 1, so as to be layered along the thickness direction of material to thing
Material is blown so that each layer of material can be exchanged heat with air, improves the drying efficiency of material.
Preferably, air intake house steward 1 is horizontally disposed with, and multiple first point of wind branch pipe 2 are vertically arranged, and first point of wind branch pipe 2 can be with
By the air-supply of air intake house steward 1 vertically to material delivered inside, so as to be sent along the thickness direction of material to material
Wind so that each layer of material can be exchanged heat with air, improves the drying efficiency of material.
Preferably, air intake house steward 1 is horizontally disposed with, and multiple first point of wind branch pipe 2 are horizontally spaced horizontally disposed, so that
First point of wind branch pipe 2 can be made to be distributed along the horizontal direction of material so that first point of wind branch pipe 2 can be along material
Entirely spread out area to be blown, improve blowing range.It is of course also possible to air intake house steward 1 is horizontally disposed, multiple first point of wind branch
Pipe 2 is vertically arranged.
Preferably, end point wind branch pipe 4 is horizontally disposed with；Or, end point wind branch pipe 4 is vertically arranged.When end point wind branch pipe 4
When horizontally disposed, if first point of wind branch pipe 2 is also horizontally disposed with, air can be made abundant with material from whole horizontal direction
Contact.When end point wind branch pipe 4 is horizontally disposed with, if first point of wind branch pipe 2 is vertically arranged, first point of wind branch can be passed through
Pipe 2 allows air to reach multilayer dose, by end point wind branch pipe 4 air is reached at each layer material position
At each position in horizontal direction, it can be formed and more fully contacted with each layer of material, drying effect more preferably, dries effect
Rate is higher.
Preferably, end point wind branch pipe 4 around itself axially rotatably arranged with.Due to having between the wind branch pipe 4 of each end point
Certain interval, during drying, to guarantee that fully material is dried, end point wind branch pipe 4 is dried
Can suitably it be rotated in journey, to avoid partial material from not being purged to.
Preferably, the inner circumferential of first point of wind branch pipe 2 and/or periphery, which are provided with, prevents material from entering from the first venthole 3
Material retaining net in one point of wind branch pipe 2；And/or, end, which divides the inner circumferential of wind branch pipe 4 and/or periphery to be provided with, prevents material from second
The material retaining net that venthole 5 enters in the wind branch pipe 4 of end point.
Material retaining net can form effective guarantor to the pipeline of first point of wind branch pipe 2 and the end point grade of wind branch pipe 4 embedment material
Shield, during material is dried, it is possible to prevente effectively from material enters duct, blocks venthole, causes equipment to be run
It is not smooth.
Preferably, divide the position of airduct air-distribution device in the horizontal direction adjustable, specifically, point airduct air-distribution device edge is more
The cloth set direction position of individual first point of wind branch pipe 2 is adjustable.In drying system running, due to the cloth of first point of wind branch pipe 2
If spacing is larger, therefore the region having partly between two adjacent first point of wind branch pipes 2 can not be accessed sufficiently
Dry, therefore, it can in drying system running, control point cloth of the airduct air-distribution device along multiple first point of wind branch pipe 2
Set direction position adjustment so that adjacent before two can be adjusted to by being divided to the position of first point of wind branch pipe 2 of airduct air-distribution device
Region between individual first point of wind branch pipe 2, is purged to middle material, the purging of material maximum area is realized with this, is protected
Hinder dry materials uniformity, and drying efficiency maximization.
With reference to shown in Figure 6, embodiments in accordance with the present invention, the control method bag of lossless electric-type point airduct drying system
Include：Detect the air quantity of each first point of wind branch pipe 2 region；When detecting one or more first point of wind branch pipe 2 regions
Air quantity when being less than default air quantity, increase the aperture of control valve 6 on one or more first point of wind branch pipe 2；Or, reduce other
The aperture of control valve 6 of first point of wind branch pipe 2 or the control valve 6 for closing other first point of wind branch pipe 2；Or, reduce other first point
The aperture of control valve 6 on one or more first point of wind branch pipe 2 is increased while 6 aperture of control valve of wind branch pipe 2.
, can be according to the air quantity situation inside material to distributing to the wind of each first point of wind branch pipe 2 by the above method
Amount is adjusted, so that the allocation of the amount of air inside material is more uniform, can carry out efficient drying to material inside, improve
Dry materials effect.
The control method of lossless electric-type point airduct drying system also includes：When detecting each first point of wind branch pipe 2 location
When the air quantity in domain is more than or equal to default air quantity, the temperature of each first point of wind branch pipe 2 region is detected；When detect one or
When the temperature of multiple first point of wind branch pipe 2 regions is more than preset temperature, increase on one or more first point of wind branch pipe 2
The aperture of control valve 6；Or, reduce the aperture of control valve 6 of other first point of wind branch pipe 2 or close other first point of wind branch pipe 2
Control valve 6；Or, one or more first point of wind branch are increased while reducing 6 aperture of control valve of other first point of wind branch pipe 2
The aperture of control valve 6 on pipe 2.
It is all higher than or during equal to default air quantity when detecting air quantity everywhere, then needs to control the temperature inside material
System, prevents internal batch temperature from drastically overheating and loss is caused to material.By detecting the temperature of material various places inside, Ke Yifang
Just material air quantity is adjusted so that the higher local air quantity of internal batch temperature is larger, so that temperature herein is fast
Speed is taken out of by air, is formed preferably radiating and is dried.
The control method of lossless electric-type point airduct drying system also includes：Detect drying system run time；It is when drying
When run time of uniting reaches preset time, control point arragement direction of the airduct air-distribution device along first point of wind branch pipe 2 moves pre-
If distance.In drying system running, because the laying spacing of first point of wind branch pipe 2 is larger, therefore have part be located at
Region between two adjacent first point of wind branch pipes 2 can not access sufficient drying, therefore, it can run in drying system
During, control point cloth set direction position adjustment of the airduct air-distribution device along multiple first point of wind branch pipe 2 so that point airduct cloth wind
Region between the two first point of wind branch pipes 2 adjacent before being adjusted to of the position of first point of wind branch pipe 2 of device, centering
Between material purged, realize the purging of material maximum area with this, ensure the uniformity of dry materials, and drying efficiency
Maximize.
Specifically, can be according to drying time, in drying time when carrying out the Bit andits control of point airduct air-distribution device
When more than half or drying time reaches preset time, airduct air-distribution device will be divided to adjust to former two first point of adjacent wind branch pipe 2
Between the two away from midpoint, middle material is purged, the purging of material maximum area is realized with this, guarantee dry materials
Uniformity, and drying efficiency maximization.
Same can also will be divided to airduct air-distribution device to be moved to original two adjacent first in the 1/3 dry period
Point wind branch pipe 2 between the two away from 1/3 at, when 2/3 period, will be divided to airduct air-distribution device to be moved to former two adjacent first point
Wind branch pipe 2 between the two away from 2/3 at, can so realize, during drying, make material each point can be blown by hot blast
Effect, and can slightly be adjusted on the time so that the drying of material it is more uniform rationally.
The control method of lossless electric-type point airduct drying system also includes：Detect drying system run time；It is when drying
When run time of uniting reaches preset time, control end point wind branch pipe 4 rotates predetermined angle around own torque.Due to each end point
There is certain interval between wind branch pipe 4, during drying, to guarantee that fully material is dried, end point wind
Branch pipe 4 can suitably be rotated in the drying process, to avoid partial material from not being purged to.
Embodiments in accordance with the present invention, the control method of lossless electric-type point airduct drying system includes：Detect air intake house steward 1
Interior air quantity；When detecting the air quantity in air intake house steward 1 less than default air quantity, open on first point of wind branch pipe 2 of Part I
Control valve, the control valve closed on first point of wind branch pipe 2 of other parts and runs the t1 times；Open first point of Part II
Control valve on wind branch pipe 2, the control valve closed on the outer first point of wind branch pipe 2 of other parts of Part II, and run the t2 times,
Wherein first point of wind branch pipe 2 of first point of wind branch pipe 2 of Part I and Part II is different；First point of wind branch of each several part is controlled successively
Control valve on pipe 2；After the control valve on all first point of wind branch pipes 2 is opened once, first point of all wind are opened
Control valve on branch pipe 2, carries out low wind speed drying.
Due to being to utilize environmental natural wind, during purging, it may appear that the problem of air quantity is suddenly big or suddenly small, air quantity is too small
The purging of effective penetrability can not be realized, it is impossible to the effective moisture taken out of in time in bed material, when long-time air quantity is too small, such as
Fruit sends into the bed of material all through many wind-distributing pipe roads and dried, then can bring above-mentioned phenomenon, to avoid the generation of above-mentioned phenomenon,
Increase corresponding control device on each point of supervisor, increase corresponding detection module inside pipeline, when detect air quantity it is long when
Between it is too small when, the operating method of local air-valves is opened by closing or turning down most of air-valves, material is purged, can
Air quantity is effectively adjusted, it is ensured that to the drying effect inside material.For example, in the present embodiment, be originally located in it is middle and
The valve of control valve 6 on first point of wind branch pipe 2 of bottom is closed, the valve of the control valve 6 on first point of wind branch pipe 2 on top
Open, Wind Volume was purged after a period of time, the valve of the control valve 6 on first point of wind branch pipe 2 on top is closed, middle first
The valve of control valve 6 on the valve opening for the control valve 6 divided on wind branch pipe 2, first point of wind branch pipe 2 of bottom still keeps closing
Closed state；After same purging is finished, top, the valve of control valve 6 on first point of middle wind branch pipe 2 are closed, bottom
The valve opening of control valve 6 on first point of wind branch pipe 2, after Wind Volume purges a period of time, first point of wind of three parts
Valve wide open on branch pipe 2, carries out low wind speed drying.
Using the such scheme of the present invention, with advantages below：
1st, only need to put into nonrecurring cost, and input cost is not high, and power, energy-conserving and environment-protective need not be consumed in running：
2nd, microbial activities is reduced, carbon source consumption is reduced, calorific value is improved indirectly；
3rd, moisture in Free water in evaporation biomass, reduction biomass, reduces the moisture for entering burner hearth, so as to improve fuel
Calorific value, improves boiler combustion efficiency；
4th, in purge, a part of ash content, native slag are blown out, so as to avoid enter into boiler, reduce to boiler water wall,
The abrasion of the parts such as heat exchanger, economizer, air preheater；
5th, in burner hearth moisture reduction, reduce back-end ductwork low-temperature corrosion；
6th, the overall efficiency in power plant is improved；
7th, the consumption of fuel is reduced to a certain extent, reduces the expenditure of cash flow, reduction enterprise operation burden.
Certainly, above is the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art
For, on the premise of its general principles are not departed from, some improvements and modifications can also be made, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (14)
1. a kind of lossless electric-type point airduct drying system, it is characterised in that including：
Wind energy converter, for natural wind to be converted into mechanical rotation energy, the output end with output rotary action power；
Air-supply arrangement, is connected to the output end of the wind energy converter, and drive rotation by the wind energy converter；
Divide airduct air-distribution device, be connected to the air-supply end of the air-supply arrangement, the air-supply for distributing air-supply arrangement, described point of wind
Pipe air-distribution device includes air intake house steward (1) and the multiple first point of wind branch pipe (2) being connected in parallel on the air intake house steward (1),
The first venthole (3) is provided with first point of wind branch pipe (2), the air intake of each first point of wind branch pipe (2) is provided with
Control the control valve (6) of first point of wind branch pipe (2) air quantity.
2. lossless electric-type according to claim 1 point airduct drying system, it is characterised in that the wind energy converter bag
Wind blade (7) is included, the air-supply arrangement includes air blast blower fan (8), wind blade (7) drive connection to the air blast wind
Machine (8), and drive the air blast blower fan (8) to rotate.
3. lossless electric-type according to claim 2 point airduct drying system, it is characterised in that the wind blade (7) with
Connected between the air blast blower fan (8) by gearbox (9), the gearbox (9) is used to improve turning for the air blast blower fan (8)
Speed.
4. lossless electric-type according to claim 2 point airduct drying system, it is characterised in that the wind blade (7)
The radius of gyration is more than or equal to 2 times of the radius of gyration of the air blast blower fan (8).
5. lossless electric-type according to claim 2 point airduct drying system, it is characterised in that the wind blade (7)
Rotating shaft is vertically arranged, and the rotating shaft of the air blast blower fan (8) is vertically arranged；Or, the rotating shaft of the wind blade (7) is horizontally disposed with,
The rotating shaft of the air blast blower fan (8) is horizontally disposed with；Or, the rotating shaft of wind blade (7) is vertically arranged, the air blast blower fan (8)
Rotating shaft is horizontally disposed with；Or, the rotating shaft of wind blade (7) is horizontally disposed with, the rotating shaft of the air blast blower fan (8) is vertically arranged.
6. lossless electric-type according to any one of claim 1 to 5 point airduct drying system, it is characterised in that described point
The position of airduct air-distribution device in the horizontal direction is adjustable.
7. lossless electric-type according to claim 6 point airduct drying system, it is characterised in that described point of airduct air-distribution device
Cloth set direction position along multiple first point of wind branch pipe (2) is adjustable.
8. lossless electric-type according to any one of claim 1 to 5 point airduct drying system, it is characterised in that described point
Airduct air-distribution device also includes the end point wind branch pipe (4) for being arranged on air-supply end, and the end point wind branch pipe (4) is along described
First point wind branch pipe (2) are radially extended, and wind branch pipe (4) is axially disposed for the end point multiple outlets of venthole second
Hole (5).
9. lossless electric-type according to claim 8 point airduct drying system, it is characterised in that each end point wind branch pipe
(4) around own torque rotatably arranged with.
10. a kind of control method of lossless electric-type point airduct drying system, it is characterised in that including：
Detect the air quantity of each first point of wind branch pipe (2) region；
When the air quantity for detecting one or more first point of wind branch pipe (2) regions is less than default air quantity,
Increase control valve (6) aperture on one or more first point of wind branch pipe (2)；
Or, reduce control valve (6) aperture of other first point of wind branch pipe (2) or close the control of other first point of wind branch pipe (2)
Valve (6)；
Or, one or more first point of wind branch are increased while reducing control valve (6) aperture of other first point of wind branch pipe (2)
Manage control valve (6) aperture on (2).
11. the control method of lossless electric-type according to claim 10 point airduct drying system, it is characterised in that also wrap
Include：
When the air quantity for detecting each first point of wind branch pipe (2) region is more than or equal to default air quantity, each first point is detected
The temperature of wind branch pipe (2) region；
When the temperature for detecting one or more first point of wind branch pipe (2) regions is more than preset temperature,
Increase control valve (6) aperture on one or more first point of wind branch pipe (2)；
Or, reduce control valve (6) aperture of other first point of wind branch pipe (2) or close the control of other first point of wind branch pipe (2)
Valve (6)；
Or, one or more first point of wind branch are increased while reducing control valve (6) aperture of other first point of wind branch pipe (2)
Manage control valve (6) aperture on (2).
12. the control method of lossless electric-type according to claim 10 point airduct drying system, it is characterised in that also wrap
Include：
Detect drying system run time；
When drying system run time reaches preset time, control point airduct air-distribution device is along first point of wind branch pipe (2)
Arragement direction moves pre-determined distance.
13. the control method of lossless electric-type according to claim 10 point airduct drying system, it is characterised in that also wrap
Include：
Detect drying system run time；
When drying system run time reaches preset time, control end point wind branch pipe (4) rotates preset angle around own torque
Degree.
14. a kind of control method of lossless electric-type point airduct drying system, it is characterised in that including：
Detect the air quantity in air intake house steward (1)；
When detecting the air quantity in air intake house steward (1) less than default air quantity,
The control valve on first point of wind branch pipe (2) of Part I is opened, the control closed on first point of wind branch pipe (2) of other parts
Valve, and run the t1 times；
The control valve on first point of wind branch pipe (2) of Part II is opened, Part II first point of wind branch pipe of outer other parts is closed
(2) control valve on, and run t2 times, wherein first point of wind branch pipe (2) of Part I and first point of wind branch pipe of Part II
(2) it is different；
The control valve on first point of wind branch pipe (2) of each several part is controlled successively；
After the control valve on all first point of wind branch pipes (2) is opened once, open on first point of all wind branch pipes (2)
Control valve, carry out low wind speed drying.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710458803.5A CN107166940A (en) | 2017-06-16 | 2017-06-16 | Lossless electric-type point airduct drying system and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710458803.5A CN107166940A (en) | 2017-06-16 | 2017-06-16 | Lossless electric-type point airduct drying system and its control method |
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ID=59819673
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| CN201710458803.5A Pending CN107166940A (en) | 2017-06-16 | 2017-06-16 | Lossless electric-type point airduct drying system and its control method |
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| CN108772121A (en) * | 2018-06-25 | 2018-11-09 | 寿县永昌米面有限公司 | The rice mill of unified air feed |
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Application publication date: 20170915 |