CN201053400Y - Disturbed jet flow pneumatic fan - Google Patents
Disturbed jet flow pneumatic fan Download PDFInfo
- Publication number
- CN201053400Y CN201053400Y CNU2007200399695U CN200720039969U CN201053400Y CN 201053400 Y CN201053400 Y CN 201053400Y CN U2007200399695 U CNU2007200399695 U CN U2007200399695U CN 200720039969 U CN200720039969 U CN 200720039969U CN 201053400 Y CN201053400 Y CN 201053400Y
- Authority
- CN
- China
- Prior art keywords
- cloth
- motor
- jet
- urceolus
- blower fan
- 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.)
- Expired - Fee Related
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 13
- 239000004744 fabric Substances 0.000 claims description 39
- 238000007664 blowing Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 18
- 238000009825 accumulation Methods 0.000 abstract description 9
- 239000003245 coal Substances 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012216 screening Methods 0.000 abstract 2
- 238000010892 electric spark Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 238000004880 explosion Methods 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a disturbance jet pneumatic blower which comprises an outer shell, an inner shell which is provided with the same axes with the outer shell, a guide vane which is arranged and fixedly connected between the outer shell and the inner shell. A pneumatic motor is arranged in the inner shell, a back part of the pneumatic motor is provided with a wind distributor, a front part is provided with a motor torque transmitter which is provided with an impeller of the blower; a front part of the outer shell is provided with an inlet opening protective screening, a back part is provided with an air outlet protective screening. The prior compressed-air power source of underground of a coal mine is utilized so that electric spark cannot generate, the wind jet current blown out has certain rotation and the main directional line can form a circular conical surface, disturbance wind currents with different frequencies are generated in a subuliform area, and entrainment mixed ability of jet current to the around air is greatly strengthened, thereby methane accumulation in effective actuating range of the utility model can be removed safely and quickly. The utility model has compact structure, small volume, convenient installation, safe operation, and wide practicability.
Description
Technical field
The utility model relates to disturbance jet-flow pneumatic blower fan, is particularly useful for the improvement of even angle methane accumulation on the coal mining working surface, guarantees Safety of Coal Mine Production.
Background technique
The methane accumulation of even angle is one of fundamental cause of colliery generation gas explosion on the coal mining working surface, the methane accumulation of even angle is the global problem that Coal Production often takes place and is difficult to administer on the U type ventilation coal-face, in the work of administering methane accumulation, because method is improper, it is improper particularly to equip, and the serious accident that too much fire origin causes gas explosion takes place.Therefore, domestic and international always research can effectively be administered the equipment of even angle methane accumulation on the coal-face.At present, on the coal mining working surface improvement method of even angle methane accumulation can the row of reducing, draw, blow, lead, take out etc.Concrete representational way is: 1. at the face upper corner angle place air partition or partition wall are set, adopt no-spark portable blower pump drainage; 2. use distinguished and admirable ejector and explosion-proof portable blower pump drainage; 3. adopt the gas of automatic control system in pressure extraction goaf, upper corner place, its natural outburst amount is reduced; 4. produce pulse jet with the radial jet blower fan and blow row.Draft type in addition changes; Strengthen methods such as main ventilation amount.
1. the methane accumulation of even angle was effectively on 2. 3. method was administered, but they have all adopted electronic local blower fan to add the system of pump drainage air duct, and mobile resettlement has inconvenience, also will prevent the gas exceeding limit in the pump drainage air duct in the use.4. method adopts the small-sized hydraulic blower fan to be placed in the upper corner place directly to blow row, have that system is simple, convenient removal, advantage that control range is big, because of it has adopted the safe hydraulic pressure power source of no-spark performance, so can be used for administering the upper corner gas that has transfinited, this is in demand in the colliery.But this method will be applied, and also needs to solve following problem: 1. the gas motor used of hydraulic blower can use the pressurized air or the press water of coal-face, and guarantees its working life; 2. have and entrainment the jet stronger with the disturbance ability, the sense of rotation of jet can not be confined to the plane; 3. the swing of the rotation of impeller and blower fan (or rotation) is finished with a motor and is made more miniaturization of blower fan.
The model utility content
The purpose of this utility model is the deficiency that exists according to prior art, provides a kind of simple in structure, convenient removal, and control range is big, and is safe and reliable, the disturbance jet-flow pneumatic blower fan that distinguished and admirable EFFECTIVE RANGE is long, diffusion strength is high.
For achieving the above object, disturbance jet-flow pneumatic blower fan of the present utility model, it comprises urceolus, with the inner core in the same axle center of urceolus, is provided with the stator that is fixed and is connected between urceolus and the inner core, be provided with the gas motor in the inner core, gas motor rear portion is provided with air blowing device, and the front portion is provided with the motor torsional moment transfer unit, and the motor torsional moment transfer unit is provided with draught fan impeller, the front portion of urceolus is provided with the intake grill protective net, and the rear portion is provided with the exhaust outlet protective net.
Described air blowing device is located at the cloth wind wheel on the cloth rotor shaft bearing and is located at the interior cloth rotor shaft formation of cloth rotor shaft bearing by cloth rotor shaft bearing; Described cloth wind wheel is provided with some stator blades, and these blades constitute 1～2 exhaust outlet with urceolus, also is provided with some the adjustable vanes that have petiole on the cloth wind wheel, and adjustable vane is fastened on the wheel hub of cloth wind wheel by nut; Described motor torsional moment transfer unit is made of with the impeller shaft that is connected with the gas motor drive shaft the impeller shaft bearing of fixed air motor; Described gas motor outlet pipe is provided with baffler.
This blower fan adopts a compressd-air motor to drive, utilize existing compressed-air power source under the coal mine, can not produce spark, go out that the one's intention as revealed in what one says jet has certain rotation, the line of direction,principal that blows out air-flow can be divided into a conical surface, it is distinguished and admirable to produce the different disturbance of frequency in a conical region, strengthened the entrainment mixing ability of jet greatly, thereby can eliminate the methane accumulation in its effective range safely fast ambient gas.Have and entrainment the wind jet stronger with the disturbance ability, the sense of rotation of wind jet is not limited to the plane; The rotation of the rotation of impeller and cloth wind runner is finished with a motor, makes more miniaturization of blower fan, and its compact structure is easy for installation, safe in utilization, has practicability widely.
Description of drawings
Accompanying drawing is a structural drawing of the present utility model.
Among the figure: import protective net 1, draught fan impeller 2, urceolus 3, inner core 4, gas motor 5, turnover tracheae 6, cloth wind wheel 7, adjustable vane 8, outlet protective net 9, cloth rotor shaft bearing 10, cloth rotor shaft 11, stator 12, impeller shaft bearing 13, impeller shaft 14.
Embodiment
The utility model will be further described below in conjunction with the embodiment in the accompanying drawing:
Shown in the accompanying drawing, this blower fan is mainly by intake grill protective net 1, draught fan impeller 2, urceolus 3, inner core 4, gas motor 5, turnover tracheae 6, exhaust outlet protective net 9, air blowing device, formations such as motor torsional moment transfer unit.Air blowing device is by cloth rotor shaft bearing 10, and cloth wind wheel 7 and cloth rotor shaft 11 constitute; Cloth wind wheel 7 is located on the cloth rotor shaft bearing 10, cloth rotor shaft 11 is located in the cloth rotor shaft bearing 10, cloth wind wheel 7 is provided with some stator blades, these blades constitute 1～2 exhaust outlet with urceolus 3, also be provided with some the adjustable vanes 8 that have petiole on the cloth wind wheel 7, adjustable vane 8 is fastened on by nut on the wheel hub of pneumatic cloth wind wheel 7, need change the angle of transferring blade 8 according to reality, can control the rotating speed of cloth wind wheel.The motor torsional moment transfer unit is made of impeller shaft bearing 13 and impeller shaft 14, impeller shaft 14 is contained in the impeller shaft bearing 13 and with screw by bearing and is connected with gas motor 5, pack in the inner core 4 then together and be screwed, on the outlet pipe of gas motor 5 baffler is housed, can reduces the aerodynamic noise of motor air outlet.Draught fan impeller 2 is contained on the impeller shaft 14, and the front end of urceolus 3 is equipped with import protective net 1.Cloth rotor shaft 11 is contained in the cloth rotor shaft bearing 10 by bearing, and cloth wind wheel 7 is contained on the cloth rotor shaft 11, and with the fixing rear end of inner core 4 of cloth rotor shaft bearing 10, outlet protective net 11 is equipped with in the rear end of urceolus 3 with screw.Urceolus 3 is connected and fixed by stator 12 with inner core 4.
Its working principle: when pressurized air is connected in the import of gas motor 5, the main shaft of gas motor 5 is by impeller shaft impeller 2 high speed rotating, suction air enters draught fan impeller 2 from the intake grill that has protective net 1, the air-flow of acquisition energy becomes axially after passing through the ring runner that has stator 12 substantially, promote cloth wind wheel 7 and slowly run, thus the gas jet of generation disturbance in a conical region.Air-flow at the flow direction in the blower fan shown in the arrow among the figure.Change the setting angle of adjustable vane 8, can change the rotating speed of cloth wind wheel 7, and then regulate the flow perturbation frequency.Adopt multi-form cloth wind wheel 7, can obtain the gas jet of different qualities.
Claims (5)
1. disturbance jet-flow pneumatic blower fan, it is characterized in that: it comprises urceolus (3), inner core (4) with the same axle center of urceolus (3), be provided with the stator (12) that is fixed and is connected between urceolus (3) and the inner core (4), be provided with gas motor (5) in the inner core (4), gas motor (5) rear portion is provided with air blowing device, the front portion is provided with the motor torsional moment transfer unit, the motor torsional moment transfer unit is provided with draught fan impeller (2), the front portion of urceolus (3) is provided with intake grill protective net (1), and the rear portion is provided with exhaust outlet protective net (9).
2. disturbance jet-flow pneumatic blower fan according to claim 1, it is characterized in that: described air blowing device is located at the cloth wind wheel (7) on the cloth rotor shaft bearing (10) and is located at interior cloth rotor shaft (11) formation of cloth rotor shaft bearing (10) by cloth rotor shaft bearing (10).
3. disturbance jet-flow pneumatic blower fan according to claim 2, it is characterized in that: described cloth wind wheel (7) is provided with some stator blades, these blades constitute 1～2 exhaust outlet with urceolus (3), also be provided with some the adjustable vanes (8) that have petiole on the cloth wind wheel (7), adjustable vane 8 is fastened on the wheel hub of cloth wind wheel (7) by nut.
4. disturbance jet-flow pneumatic blower fan according to claim 1 is characterized in that: described motor torsional moment transfer unit is made of with the impeller shaft (14) that is connected with gas motor (5) transmission shaft the impeller shaft bearing (13) of fixed air motor (5).
5. disturbance jet-flow pneumatic blower fan according to claim 1 is characterized in that: described gas motor (5) outlet pipe is provided with baffler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200399695U CN201053400Y (en) | 2007-06-06 | 2007-06-06 | Disturbed jet flow pneumatic fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200399695U CN201053400Y (en) | 2007-06-06 | 2007-06-06 | Disturbed jet flow pneumatic fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201053400Y true CN201053400Y (en) | 2008-04-30 |
Family
ID=39393062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200399695U Expired - Fee Related CN201053400Y (en) | 2007-06-06 | 2007-06-06 | Disturbed jet flow pneumatic fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201053400Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401992A (en) * | 2016-12-19 | 2017-02-15 | 江苏宇天科技有限公司 | Pneumatic fan |
| CN109339857A (en) * | 2018-12-07 | 2019-02-15 | 华北科技学院 | A kind of quick draw-out device of fire damp |
-
2007
- 2007-06-06 CN CNU2007200399695U patent/CN201053400Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106401992A (en) * | 2016-12-19 | 2017-02-15 | 江苏宇天科技有限公司 | Pneumatic fan |
| CN109339857A (en) * | 2018-12-07 | 2019-02-15 | 华北科技学院 | A kind of quick draw-out device of fire damp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20160606 |