CN2797709Y - Three contra rotation impeller axial-flow local-ventilation fan - Google Patents
Three contra rotation impeller axial-flow local-ventilation fan Download PDFInfo
- Publication number
- CN2797709Y CN2797709Y CN 200520024348 CN200520024348U CN2797709Y CN 2797709 Y CN2797709 Y CN 2797709Y CN 200520024348 CN200520024348 CN 200520024348 CN 200520024348 U CN200520024348 U CN 200520024348U CN 2797709 Y CN2797709 Y CN 2797709Y
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- motor
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- tube
- wheel
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Abstract
A three contra rotation impeller axial-flow local-ventilation fan can replace the existing mining flame-proof type loaded contra rotation axial-flow local-ventilation fan to use. Its purpose is carrying away motor heat in time and avoiding burnout of a second stage dynamo. The utility model comprises a first stage draught fan, a second stage draught fan and a diffuser. The first stage draught fan comprises a current collector, a fairing cap, a motor, a blade wheel and a shell; the shell comprises an inner cylinder and an enveloping cylinder, the sound-deadening cotton is filled between the inner cylinder and the enveloping cylinder, and the front end of the enveloping cylinder lengthens to connect with the current collector. The second stage draught fan comprises the second stage dynamo, the blade wheel, a cooling wheel, an air duct and the shell; the second stage dynamo whose rear part is equipped with the air duct adopts a bidirectional shaft extension structure, and the extending end of the rear axle of the motor is provided with the cooling wheel which is positioned in the air duct. The diffuser comprises a cylinder body, a sound-deadening awl and an air cylinder joint, and the air cylinder joint is directly connected with the cylinder body.
Description
Technical field
It is forced to the axial flow rotary booster that the utility model relates to a kind of flame-proof mine.
Background technique
Existing flame-proof mine is forced to adopt two motoring two-stage running wheels that power is identical to the axial flow rotary booster, and the both stage impellers acting in conjunction makes this ventilator have big air quantity, high blast, advantage that efficient is high.Along with the prolongation of ventilator air supplying distance, windage increases, and the flow of blower fan diminishes, pressure increases, and consumed power also increases thereupon, but problem is that the variation of one-level power of motor is little, the secondary power of motor changes greatly, therefore causes secondary power of motor overload easily, and then burns.Someone all is exposed to motor in the ventilator runner, want to allow the interior distinguished and admirable heat that motor is produced of runner take away, reach the purpose of heat radiation, but found through experiments, gas major part in the runner flows out along air duct cylindrical ring-type, very low near motor surface ram compression, the heat that motor produces can't be distributed, therefore can not solve the problem that the secondary motor easily causes power overload and burns.
Summary of the invention
The purpose of this utility model is exactly the deficiency that overcomes above-mentioned prior art, thus provide a kind of the motor heat in time can be taken away avoid the secondary burn-down of electric motor trilobed wheel to the axial flow rotary booster.
The utility model includes one-level blower fan, secondary blower fan and diffuser; The one-level blower fan includes slip ring, fair water cone, motor, impeller and housing, and housing includes inner core and outsourcing tube, is filled with the cotton of eliminating the noise between inner core and the outsourcing tube; Outsourcing tube front end lengthening is connected with slip ring, and connection box for motor is fixed on outsourcing tube outside.The secondary blower fan includes secondary motor, impeller, cooling wheel, air conducting tube and housing, the secondary motor adopts two-way shaft extension structure, be provided with air conducting tube at secondary motor rear portion, air conducting tube is installed by dunnage, the shaft extension end is equipped with impeller before the motor, back shaft extension end is equipped with cooling wheel, and cooling wheel is positioned at air conducting tube.Diffuser includes cylindrical shell, eliminate the noise awl, air duct joint, and the air duct joint directly is connected with cylindrical shell, and the awl of eliminating the noise is fixed on cylindrical shell central authorities.
The alternative existing flame-proof mine of the utility model is forced to be used the axial flow rotary booster.The utility model increased by one identical with secondary draught fan impeller sense of rotation, the cooling wheel of wind direction unanimity and air conducting tube, make in the ventilator runner annular flow some flow through the motor surface, the heat that produces during with machine operation is taken away, and burns because of overheated to prevent motor.The utility model is easy to use, and Safety performance is good, and air quantity is big, efficient height, long service life.
Description of drawings
Fig. 1 is the utility model structural representation,
Among the figure: 1, muscle circle, 2, slip ring, 3, fair water cone, 4, protective net, 5, eliminate the noise cotton, 6, terminal box, 7, fairlead, 8, motor, 9, dunnage, 10, fixed tray, 11, impeller, 12, flange, 13, impeller, 14, dunnage, 15, fixed tray, 16, motor, 17, terminal box, 18, fairlead, 19, the outsourcing tube, 20, inner core, 21, air conducting tube, 22, dunnage, 23, cooling wheel, 24, cylindrical shell, 25, the awl of eliminating the noise, 26, the air duct joint, 27, retaining muscle circle, 28,29, footing.
Embodiment
Be connected by flange 12 between one-level blower fan and the secondary blower fan.One-level blower fan outsourcing tube 19 is connected with slip ring 2 front ends, is provided with muscle circle 1 on slip ring 2, to increase the intensity of slip ring 2, prevents that slip ring 2 is out of shape because of colliding with in transportation and installation process.Motor 8,16 is respectively by dunnage 9,14 fixed installations.The shaft extension end is equipped with impeller 13 before the motor 16, and back shaft extension end is equipped with cooling wheel 23.Inner core 20, cylindrical shell 24 are the orifice plate tube.Cylindrical shell 24 is the maltha material, and air duct joint 26 directly is connected with cylindrical shell 24, uses convenient.Connection box for motor 6,17 is fixed on outsourcing tube 19 outsides, avoids influencing because terminal box 6,17 occurs loosening Safety performance.Air duct joint 26 outsides are provided with retaining muscle circle 27.The awl 25 of eliminating the noise is fixed on cylindrical shell 24 central authorities by dunnage, and the housing below is provided with footing 28,29.
Claims (3)
1, a kind of trilobed wheel is characterized in that including one-level blower fan, secondary blower fan and diffuser to the axial flow rotary booster; The one-level blower fan includes slip ring, fair water cone, motor, impeller and housing, and housing includes inner core and outsourcing tube, is filled with the cotton of eliminating the noise between inner core and the outsourcing tube; Outsourcing tube front end lengthening is connected with slip ring, and connection box for motor is fixed on outsourcing tube outside; The secondary blower fan includes secondary motor, impeller, cooling wheel, air conducting tube and housing, the secondary motor adopts two-way shaft extension structure, be provided with air conducting tube at secondary motor rear portion, air conducting tube is installed by dunnage, the shaft extension end is equipped with impeller before the motor, back shaft extension end is equipped with cooling wheel, and cooling wheel is positioned at air conducting tube; Diffuser includes cylindrical shell, eliminate the noise awl, air duct joint, and the air duct joint directly is connected with cylindrical shell, and the awl of eliminating the noise is fixed on cylindrical shell central authorities.
2, trilobed wheel as claimed in claim 1 is characterized in that to the axial flow rotary booster connection box for motor is fixed on outsourcing tube outside.
3, trilobed wheel as claimed in claim 1 is characterized in that being provided with the muscle circle to the axial flow rotary booster on slip ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520024348 CN2797709Y (en) | 2005-06-21 | 2005-06-21 | Three contra rotation impeller axial-flow local-ventilation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520024348 CN2797709Y (en) | 2005-06-21 | 2005-06-21 | Three contra rotation impeller axial-flow local-ventilation fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2797709Y true CN2797709Y (en) | 2006-07-19 |
Family
ID=36868952
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520024348 Expired - Fee Related CN2797709Y (en) | 2005-06-21 | 2005-06-21 | Three contra rotation impeller axial-flow local-ventilation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2797709Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138761B (en) * | 2006-09-05 | 2010-05-26 | 金华职业技术学院 | Taper cone type centrifugal fan |
| CN103629163A (en) * | 2013-11-29 | 2014-03-12 | 淮北兴海工贸有限责任公司 | Low-noise sound attenuation machine shell of mine explosive-proof press-in type counter-rotating axial flow local ventilator |
| CN103671257A (en) * | 2013-12-09 | 2014-03-26 | 淮南矿业(集团)有限责任公司 | Mining anti-explosion local ventilator |
| CN110145492A (en) * | 2019-07-06 | 2019-08-20 | 代元军 | A kind of mining partial axial ventilator of the V-shaped structure of blade tip |
| CN110145491A (en) * | 2019-07-07 | 2019-08-20 | 代元军 | A kind of blade tip rear is in the mining partial axial ventilator of saw-tooth-type structures |
| CN110173451A (en) * | 2019-07-07 | 2019-08-27 | 代元军 | A kind of blade tip is in the mining partial axial ventilator of W type structure |
| CN112814943A (en) * | 2021-02-03 | 2021-05-18 | 西安重装韩城煤矿机械有限公司 | Integrally formed curved and swept combined blade, impeller and axial flow fan |
-
2005
- 2005-06-21 CN CN 200520024348 patent/CN2797709Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138761B (en) * | 2006-09-05 | 2010-05-26 | 金华职业技术学院 | Taper cone type centrifugal fan |
| CN103629163A (en) * | 2013-11-29 | 2014-03-12 | 淮北兴海工贸有限责任公司 | Low-noise sound attenuation machine shell of mine explosive-proof press-in type counter-rotating axial flow local ventilator |
| CN103671257A (en) * | 2013-12-09 | 2014-03-26 | 淮南矿业(集团)有限责任公司 | Mining anti-explosion local ventilator |
| CN110145492A (en) * | 2019-07-06 | 2019-08-20 | 代元军 | A kind of mining partial axial ventilator of the V-shaped structure of blade tip |
| CN110145491A (en) * | 2019-07-07 | 2019-08-20 | 代元军 | A kind of blade tip rear is in the mining partial axial ventilator of saw-tooth-type structures |
| CN110173451A (en) * | 2019-07-07 | 2019-08-27 | 代元军 | A kind of blade tip is in the mining partial axial ventilator of W type structure |
| CN112814943A (en) * | 2021-02-03 | 2021-05-18 | 西安重装韩城煤矿机械有限公司 | Integrally formed curved and swept combined blade, impeller and axial flow fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |