CN104500428A - Centrifugal fan capable of automatically controlling humidity of granary - Google Patents
Centrifugal fan capable of automatically controlling humidity of granary Download PDFInfo
- Publication number
- CN104500428A CN104500428A CN201410586844.9A CN201410586844A CN104500428A CN 104500428 A CN104500428 A CN 104500428A CN 201410586844 A CN201410586844 A CN 201410586844A CN 104500428 A CN104500428 A CN 104500428A
- Authority
- CN
- China
- Prior art keywords
- light pipe
- motor
- centrifugal blower
- upper cover
- automatic control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/02—Surge control
- F04D27/0261—Surge control by varying driving speed
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F25/00—Storing agricultural or horticultural produce; Hanging-up harvested fruit
- A01F25/16—Arrangements in forage silos
- A01F25/22—Ventilating arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
- F04D29/282—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers the leading edge of each vane being substantially parallel to the rotation axis
Abstract
The invention relates to the technical field of granary equipment, in particular to a centrifugal fan capable of automatically controlling humidity of a granary. The centrifugal fan comprises a base, a volute, a motor and a wind wheel. The motor is a double-stretching-shaft type four-electrode motor, and two transmission shafts of the motor are fixed to the wind wheel in the volute; the volute and the motor are fixed to the base; and the centrifugal fan further comprises a wind speed automatic adjusting system which is connected with the motor and a humidity detection device which is connected with the wind speed automatic adjusting system. According to the structure, the wind speed automatic adjusting system, the humidity detection device and the motor are connected; humidity inside the granary is automatically measured, and the measuring precision is high; and the wind speed automatic adjusting system obtains the humidity value inside the granary and automatically controls the speed, opening and closing of the motor in real time, and manual work is greatly reduced.
Description
Technical field
The present invention relates to silo equipment technical field, be specifically related to a kind of silo Humidity Automatic Control centrifugal blower.
Background technique
Grain is the strategic resources of country, and it is national emphasis problem that grain stores always.Real-time automatic monitoring and the important component part regulated as agricultural automation field of silo humidity, its research and apply is achieving rapid progress in recent years.But existing silo TT&C system mainly manual type, wiring is complicated, and investment is large, and workload is large, and silo detects grain humidity, collects the manpower financial capacity that data need at substantial one by one, low precision and cannot regulate the humidity of silo in real time.Therefore, more intelligent detection and adjustment silo humidity become nowadays important research topic direction.
Summary of the invention
The present invention proposes a kind of silo Humidity Automatic Control centrifugal blower, and the humidity of autonomous detection and in real time control silo, significantly reduces artificial.
For reaching this object, the present invention by the following technical solutions:
A kind of silo Humidity Automatic Control centrifugal blower, comprise base, spiral case, motor and wind wheel, described motor is double extension shaft formula quadrupole motor, two transmission shaft is individually fixed in the wind wheel in described spiral case, described spiral case and described motor are fixed on described base, also comprise wind speed automatic regulating system, described wind speed automatic regulating system is connected with motor, also comprises the humidity detector be connected with described wind speed automatic regulating system.
Described wind wheel is by two single wheel axles to being formed by fixedly connecting, and the blade of described two single-wheels staggers mutually.
Described single-wheel comprises described blade, end ring and former, and described end ring and described former are located at outside and the inner side of the vane group be made up of described blade respectively, and described former is fixed by axle sleeve, and described axle sleeve is fixedly connected with described transmission shaft.
Described spiral case comprises side cover and enclose lid, encloses the button hole of lid described in the fastener of described side cover passes, and left-hand thread residence is stated and enclosed lid.
Be provided with insulation board between described motor and described base, the screw of fixing described motor and described base uses insulating bush to completely cut off and opens.
Described humidity detector comprises upper cover, lower cover and control gear, upper cover bottom is provided with hole I, top is provided with hole II, upper cover and lower cover are tightly connected by fastening piece, inside forms chamber, light pipe is provided with in chamber, light pipe two ends and Fiber connection, optical fiber is connected with control gear, and light pipe and upper cover are tightly connected, light pipe is provided with some hole III, is provided with the transmitter launching infrared light and the prober receiving infrared light in described control gear.
Be provided with light pipe I and light pipe II in described chamber, light pipe I is connected by optical fiber II with light pipe II, and light pipe I and light pipe II is connected to control gear respectively by optical fiber I and optical fiber III, and light pipe I and light pipe II and upper cover are tightly connected.
Described light pipe I and light pipe II are collimator.
Described upper cover and the lower cover place of being tightly connected are provided with sealer or seal ring, and described hole II is located at the upper left side of upper cover, and hole I is located at the right lower side of upper cover.
Described wind speed automatic regulating system includes pressure transducer, PID controller and frequency variator, wherein, pressure transducer is arranged at the wind direction inlet of blower fan support body, the input end of PID controller is connected with pressure transducer, output terminal is connected with the input end of frequency variator, and the output terminal of frequency variator is connected with motor.
The present invention is according to above structure, wind speed automatic regulating system, humidity detector and motor are interconnected, the humidity of automatic measurement silo inside, measuring accuracy is high, wind speed automatic regulating system obtains humidity value in silo and the speed of automatic control motor and Push And Release in real time, significantly reduces artificial work.
Accompanying drawing explanation
Fig. 1 is the forward sight structural representation of one embodiment of the present of invention.
Fig. 2 is the plan structure schematic diagram of one embodiment of the present of invention.
Fig. 3 is the right TV structure schematic diagram of one embodiment of the present of invention.
Fig. 4 is the right TV structure schematic diagram of an embodiment of wind wheel.
Fig. 5 be an embodiment of wind wheel face structural representation.
Fig. 6 is that structural representation faced by the raw material of an embodiment of blade.
Fig. 7 is the side-looking structural representation of an embodiment of blade.
Fig. 8 is the structural representation of the humidity detector of one embodiment of the present of invention.
Fig. 9 is the structured flowchart of the wind speed automatic regulating system of one embodiment of the present of invention.
Wherein: base 100, spiral case 200, side cover 201, enclose lid 202, baffle liner 203, diffusion mouth 204, motor 300, transmission shaft 301, wind wheel 400, blade 410, main body 411, assembly department 412, end ring 402, former 403, axle sleeve 404, blades installation angle A, blade radius of the radian R, wind speed automatic regulating system 500, control gear 1, optical fiber I2, sealing material 3, upper cover 4, light pipe I5, hole III6, chamber 7, hole I8, optical fiber II9, lower cover 10, optical fiber III11, hole II12, light pipe 13, fastening piece 14, seal ring 15.
Embodiment
Technological scheme of the present invention is further illustrated by embodiment below in conjunction with accompanying drawing.
As shown in Figures 1 to 9, a kind of high-efficiency air-condition centrifugal blower, comprise base 100, spiral case 200, motor 300 and wind wheel 400, described motor 300 is double extension shaft formula quadrupole motor, two transmission shaft 301 is individually fixed in the wind wheel 400 in described spiral case 200, described spiral case 200 and described motor 300 are fixed on described base 100, the setting angle A of the blade 410 of described wind wheel 400 is 30 °-40 °, as shown in Figure 6, described wind wheel 400 comprises main body 411 and is located at the assembly department 412 at main body 411 two ends, described main body 411 is by rectangular raw material line centered by the long limit of one, two broadside counterrotatings form, the length on described long limit is 90-100mm, the length of described broadside is 18-24mm, as shown in Figure 7, the radius of the radian R of described blade 410 is 12-15mm.
Also comprise wind speed automatic regulating system 500, described wind speed automatic regulating system 500 is connected with motor, also comprises the humidity detector be connected with described wind speed automatic regulating system 500.
Utilize the fluid mechanics of air, the efficiency of the design increase centrifugal blower that described blade 410 is such, plays the effect improving air-flow, makes centrifugal blower performance more superior, effectively reduce the volume of centrifugal blower, have larger blast simultaneously.
As shown in Figure 5, described wind wheel 400 is by two single wheel axles to being formed by fixedly connecting, and the blade 410 of described two single-wheels staggers mutually, the air-flow introduced respectively is interacted, increase blast from two described single-wheels.
As shown in Figure 4 and Figure 5, described single-wheel comprises described blade 410, end ring 402 and former 403, described end ring 402 and described former 403 are located at outside and the inner side of the vane group be made up of described blade 410 respectively, described former 403 is fixed by axle sleeve 404, and described axle sleeve 404 is fixedly connected with described transmission shaft 301.
The diameter of described wind wheel 400 and width ratio are 180:196.This ratio of described wind wheel 400 has best boost performance.
Blade 410 quantity of described wind wheel 400 is 85-105 sheet.The density of described blade 410 is one of important indicator determining centrifugal blower performance equally, and described blade 410 makes centrifugal blower have good performance in this quantitative range.
As shown in Figure 5, two intake grills of described spiral case 200 are located at the both sides of described wind wheel 400 axis respectively, and described intake grill is provided with diminishing baffle liner 203 from outside to inside, plays the effect of diffusion.
The exhaust outlet of described spiral case 200 is located at described base 100, and described exhaust outlet is provided with the diffusion mouth 204 of outward-dipping 3 °-5 °, and described diffusion mouth 204 is integral type structure with described spiral case 200.The outer incline of 3 °-5 ° of described diffusion mouth 204 has best diffusion effect, and described diffusion mouth 204 and the integral structure of described spiral case 200 reduce the volume of described diffusion mouth 204.
As shown in Figure 2 to Figure 3, described spiral case 200 comprises side cover 201 and encloses lid 202, encloses the button hole of lid 202 described in the fastener of described side cover 201 passes, and left-hand thread residence is stated and enclosed lid 202.Compared with welded structure, left-hand thread structure can avoid rosin joint, dry joint and oxidizable shortcoming, increases the working life of centrifugal blower.
The length of described spiral case 200 is 240mm-270mm.
Be provided with insulation board between described motor 300 and described base 100, fixing described motor 300 uses insulating bush to completely cut off with the screw of described base 100 and opens, effectively prevent described motor 300 from leaking electricity.
As shown in Figure 8, described humidity detector comprises upper cover 4, lower cover 10 and control gear 1, upper cover 4 bottom is provided with hole I8, top is provided with hole II12, upper cover 4 and lower cover 10 are tightly connected by fastening piece 14, inside forms chamber 7, are provided with light pipe, light pipe two ends and Fiber connection in chamber 7, optical fiber is connected with control gear 1, light pipe and upper cover 4 are tightly connected, and light pipe is provided with some hole III6, are provided with the transmitter launching infrared light and the prober receiving infrared light in described control gear 1.
The advantage of this humidity detector is: 1, according to intensity variation, mensurated gas composition humidity, and testing precision is high, and range is large; 2, hole I, hole II lay respectively at right lower side and the upper left side of upper cover, and extend the route that gas passes through, proof test gas fully enters light pipe, fully absorbs infrared light, improves testing precision further.3, structure is simple, long service life.
Working principle of the present invention: a kind of device of infrared light detection gas humidity, it comprises upper cover 4, lower cover 10 and control gear 1, upper cover 4 is provided with hole I8, hole II12, upper cover 4 and lower cover 10 connect 14 by fastening piece and connect and form chamber, and seal with seal ring 15, the light pipe I5 be placed in chamber 7 is connected by optical fiber II9 with light pipe II13, light pipe I5 and light pipe II13 receives control gear 1 respectively by optical fiber I2 and optical fiber III11, the part that light pipe I5 and light pipe II13 inserts upper cover 4 is sealed by sealing material 3, light pipe I5 and light pipe II13 is provided with some hole III6, test gas can enter.Test gas is entered in chamber 7 by hole I8, and enters light pipe I5, light pipe II13 by some hole III6.The test gas of certain humidity is had to enter light pipe, water molecule can absorb infrared light, and water molecule is more, and the infrared light of absorption is also more, degree according to infrared light decay carrys out determination test gas humidity, and the present invention opens the new method of application infrared light detection gas humidity.The infrared light launched in control gear 1 imports light pipe into through optical fiber I2, and the mositure absorption light pipe I5 in test gas and the light wave in light pipe II13, cause intensity variation, and the intensity variation recorded according to control gear judges the humidity of test gas.
Be provided with light pipe I5 and light pipe II13 in described chamber 7, light pipe I5 is connected by optical fiber II9 with light pipe II13, and light pipe I5 and light pipe II13 is connected to control gear 1 respectively by optical fiber I2 and optical fiber III11, and light pipe I5 is connected by sealing material 3 with upper cover 4 with light pipe II13.
Described light pipe I and light pipe II are collimator.
Described upper cover 4 is provided with sealer or seal ring 15 with lower cover 10 place of being tightly connected.
Described hole II12 is located at the upper left side of upper cover 4, and hole I8 is located at the right lower side of upper cover 4.
As shown in Figure 9, described wind speed automatic regulating system 500 includes pressure transducer, PID controller and frequency variator, wherein, pressure transducer is arranged at the wind direction inlet of blower fan support body 100, the input end of PID controller is connected with pressure transducer, output terminal is connected with the input end of frequency variator, and the output terminal of frequency variator is connected with motor 300.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (10)
1. a silo Humidity Automatic Control centrifugal blower, comprise base, spiral case, motor and wind wheel, described motor is double extension shaft formula quadrupole motor, two transmission shaft is individually fixed in the wind wheel in described spiral case, described spiral case and described motor are fixed on described base, it is characterized in that: also comprise wind speed automatic regulating system, described wind speed automatic regulating system is connected with motor, also comprises the humidity detector be connected with described wind speed automatic regulating system.
2. a kind of silo Humidity Automatic Control centrifugal blower according to claim 1, is characterized in that: described wind wheel is by two single wheel axles to being formed by fixedly connecting, and the blade of described two single-wheels staggers mutually.
3. a kind of silo Humidity Automatic Control centrifugal blower according to claim 2, it is characterized in that: described single-wheel comprises described blade, end ring and former, described end ring and described former are located at outside and the inner side of the vane group be made up of described blade respectively, described former is fixed by axle sleeve, and described axle sleeve is fixedly connected with described transmission shaft.
4. a kind of silo Humidity Automatic Control centrifugal blower according to claim 1, is characterized in that: described spiral case comprises side cover and enclose lid, encloses the button hole of lid described in the fastener of described side cover passes, and left-hand thread residence is stated and enclosed lid.
5. a kind of silo Humidity Automatic Control centrifugal blower according to claim 1, is characterized in that: be provided with insulation board between described motor and described base, and the screw of fixing described motor and described base uses insulating bush to completely cut off and opens.
6. a kind of silo Humidity Automatic Control centrifugal blower according to claim 1, it is characterized in that: described humidity detector comprises upper cover, lower cover and control gear, upper cover bottom is provided with hole I, top is provided with hole II, upper cover and lower cover are tightly connected by fastening piece, inside forms chamber, light pipe is provided with in chamber, light pipe two ends and Fiber connection, optical fiber is connected with control gear, light pipe and upper cover are tightly connected, light pipe is provided with some hole III, is provided with the transmitter launching infrared light and the prober receiving infrared light in described control gear.
7. a kind of silo Humidity Automatic Control centrifugal blower as claimed in claim 6, it is characterized in that: in described chamber, be provided with light pipe I and light pipe II, light pipe I is connected by optical fiber II with light pipe II, light pipe I and light pipe II is connected to control gear respectively by optical fiber I and optical fiber III, and light pipe I and light pipe II and upper cover are tightly connected.
8. a kind of silo Humidity Automatic Control centrifugal blower as described in claim 6 or 7, is characterized in that: described light pipe I and light pipe II are collimator.
9. a kind of silo Humidity Automatic Control centrifugal blower as described in claim 6 or 7, is characterized in that: described upper cover and the lower cover place of being tightly connected are provided with sealer or seal ring, and described hole II is located at the upper left side of upper cover, and hole I is located at the right lower side of upper cover.
10. a kind of silo Humidity Automatic Control centrifugal blower as claimed in claim 1, it is characterized in that: described wind speed automatic regulating system includes pressure transducer, PID controller and frequency variator, wherein, pressure transducer is arranged at the wind direction inlet of blower fan support body, the input end of PID controller is connected with pressure transducer, output terminal is connected with the input end of frequency variator, and the output terminal of frequency variator is connected with motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410586844.9A CN104500428A (en) | 2014-10-28 | 2014-10-28 | Centrifugal fan capable of automatically controlling humidity of granary |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410586844.9A CN104500428A (en) | 2014-10-28 | 2014-10-28 | Centrifugal fan capable of automatically controlling humidity of granary |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104500428A true CN104500428A (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410586844.9A Pending CN104500428A (en) | 2014-10-28 | 2014-10-28 | Centrifugal fan capable of automatically controlling humidity of granary |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3964059B2 (en) * | 1998-09-25 | 2007-08-22 | 清記 須山 | Indoor automatic ventilation system |
| US20090060738A1 (en) * | 2007-08-31 | 2009-03-05 | Delta Electronics, Inc. | Fan and manufacturing method thereof |
| CN202628579U (en) * | 2012-06-11 | 2012-12-26 | 佛山市盈赛机械设备有限公司 | Condensing fan for bus air conditioner |
| CN202677238U (en) * | 2012-08-02 | 2013-01-16 | 河南工业大学 | Granary intelligent ventilation control system |
| CN103033487A (en) * | 2012-12-27 | 2013-04-10 | 济南兰光机电技术有限公司 | Device for detecting gas humidity with infrared light |
| CN203796620U (en) * | 2014-05-13 | 2014-08-27 | 佛山市盈赛机械设备有限公司 | Efficient air conditioner centrifugal fan |
-
2014
- 2014-10-28 CN CN201410586844.9A patent/CN104500428A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3964059B2 (en) * | 1998-09-25 | 2007-08-22 | 清記 須山 | Indoor automatic ventilation system |
| US20090060738A1 (en) * | 2007-08-31 | 2009-03-05 | Delta Electronics, Inc. | Fan and manufacturing method thereof |
| CN202628579U (en) * | 2012-06-11 | 2012-12-26 | 佛山市盈赛机械设备有限公司 | Condensing fan for bus air conditioner |
| CN202677238U (en) * | 2012-08-02 | 2013-01-16 | 河南工业大学 | Granary intelligent ventilation control system |
| CN103033487A (en) * | 2012-12-27 | 2013-04-10 | 济南兰光机电技术有限公司 | Device for detecting gas humidity with infrared light |
| CN203796620U (en) * | 2014-05-13 | 2014-08-27 | 佛山市盈赛机械设备有限公司 | Efficient air conditioner centrifugal fan |
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Application publication date: 20150408 |