CN203201836U - Mining flame-proof type three-level axial flow disrotatory local ventilator - Google Patents
Mining flame-proof type three-level axial flow disrotatory local ventilator Download PDFInfo
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- CN203201836U CN203201836U CN 201320237924 CN201320237924U CN203201836U CN 203201836 U CN203201836 U CN 203201836U CN 201320237924 CN201320237924 CN 201320237924 CN 201320237924 U CN201320237924 U CN 201320237924U CN 203201836 U CN203201836 U CN 203201836U
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Abstract
The utility model discloses a mining flame-proof type three-level axial flow disrotatory local ventilator which solves the problem that an existing ventilator is short in conveying distance. The mining flame-proof type three-level axial flow disrotatory local ventilator is characterized in that a level III cylinder body is connected with a level II cylinder body, a level III flame-proof motor is installed on the level III cylinder body, a level III impeller is installed on a shaft extension portion of the level III flame-proof motor, and the portion of the level III impeller is close to the level II cylinder body. A level I impeller and a level II impeller are mutually disrotatory. The level III impeller and the level II impeller are mutually disrotatory. The numbers of adjacent level impellers are prime numbers mutually. The level III flame-proof motor, a level I flame-proof motor and a level II flame-proof motor are identical in power. According to the mining flame-proof type three-level axial flow disrotatory local ventilator, the pressure of the ventilator can be increased, the energy of air flow can be increased, so that the air pressure higher than that of a two-level disrotatory local ventilator is obtained, the distance of conveyed air flow is increased without the movement of the ventilator, the long-distance ventilation is achieved, the labor intensity of workers is reduced, the ventilating time is saved, and the mining flame-proof type three-level axial flow disrotatory local ventilator is an ideal device for long-distance local ventilation in mine excavation.
Description
Technical field
The utility model relates to a kind of propeller fan, relates to or rather a kind of mining propeller fan.
Background technique
The at present ventilation of colliery underground coal, stone drifting working surface mainly ventilates to realize ventilating by forced booster, and its Main Function is exactly dilution and the toxic and harmful of getting rid of driving face and supplies with the driving face fresh gas flow.
There is the lower shortcoming of blast in FBD series ventilator commonly used: mostly be the secondary ventilator, when the long Distance Ventilation of needs, must could increase the distinguished and admirable distance of conveying by mobile movable ventilation machine.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art provides three grades of axial flows of a kind of flame-proof mine to revolving booster, and aeroperformance satisfies the requirement that the coal mine evacuation working face Local Quantitative is ventilated fully, and fed distance is long, and fan efficiency is high.
The utility model comprises slip ring, I level cylindrical shell, I level flameproof motor, I level impeller, II level cylindrical shell, II level flameproof motor, II level impeller, rear noise elimination diffuser, duct-joint, impeller is installed on the shaft extension of flameproof motor, characterized by further comprising III level cylindrical shell, III level flameproof motor, III level impeller, III level cylindrical shell links to each other with II level cylindrical shell, III level flameproof motor is installed on the III level cylindrical shell, and III level impeller is installed on the shaft extension of III level flameproof motor, the position is near II level cylindrical shell; To revolving, III level impeller and II level impeller are each other to revolving each other for I level impeller, II level impeller; The number of blade of impeller prime number each other between adjacent level, III level flameproof motor and I level flameproof motor, II level flameproof motor power are identical; Radial clearance between every grade of impeller and the corresponding cylindrical shell is 1.5 ‰ of impeller diameter～3.5 ‰.
The number of blade of described I level impeller is 12, and the number of blade of II level impeller is 10, and the number of blade of III level impeller is 12.
As shown from the above technical solution, the utlity model has following beneficial effect:
1, based on secondary to revolving the thinking of ventilator, increase one-level, can increase the pressure of ventilator, the energy of increase air-flow, thereby obtain the blast higher than two-stage counter-rotary local fan, so that the movable ventilation machine can not increase the distinguished and admirable distance of conveying, realize the ventilation of long distance, and reduced workman's labor intensity, saved ventilation time.
2, three grades of impellers have adopted revolving structure, and reverse each other, the radial clearance between impeller and the cylindrical shell is 1.5 ‰ of impeller diameter～3.5 ‰, and constant speed is to revolving, and blade is the wing meander configuration, has reduced the blower fan internal drag, has improved the efficient of blower fan.
3, the fully air-conditioning requirement of effective guarantee digging laneway overlength degree also can be satisfied the characteristics such as, efficient application wide ranges stable at the small flow area operation simultaneously; Because the drive motor of blower fan at blower fan cylindrical shell center, can cool off drive motor, make that its body windage is little, noise is low, blast is high, efficient is high, good combination property, energy saving.
4, air-conditioning requirement that can be different with the tunnel according to driving face length, but a tractor serves several purposes, but both complete machine used, again gradable use; But both single-stage operations, also can be multistage to revolving, thereby reduce energy consumption, energy saving is the ideal equipment of mine development end middle and long distance local ventilation.
Description of drawings
Accompanying drawing 1 is plan view of the present utility model.
Among the figure, 1. slip ring, 2. I level cylindrical shell, 3. I level flameproof motor, 4. I level impeller, 5. II level cylindrical shell, 6. II level flameproof motor, 7. II level impeller, 8. III level cylindrical shell, 9. III level flameproof motor, 10. III level impeller, 11. rear noise elimination diffusers, 12. duct-joints.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described.
As shown in drawings, the utility model comprises slip ring 1, I level cylindrical shell 2, I level flameproof motor 3, I level impeller 4, II level cylindrical shell 5, II level flameproof motor 6, II level impeller 7, III level cylindrical shell 8, III level flameproof motor 9, III level impeller 10, rear noise elimination diffuser 11
,Duct-joint 12 etc.
I level cylindrical shell 2 connects II level cylindrical shell 5, and II level cylindrical shell 5 connects III level cylindrical shell 8.Flameproof motor is installed on the cylindrical shell, and impeller is installed on the shaft extension of flameproof motor.III level impeller 10 is installed on the shaft extension of III level flameproof motor 9, the position is near II level cylindrical shell 5; To revolving, III level impeller 10 and II level impeller 7 are each other to revolving each other for I level impeller 4, II level impeller 7; The number of blade of impeller prime number each other between adjacent level, the number of blade of described I level impeller is 12, and the number of blade of II level impeller is 10, and the number of blade of III level impeller is 12, only has 1 pair of blade to overlap with level before and after guaranteeing at every turn.III level flameproof motor and I level flameproof motor, II level flameproof motor power are identical; Radial clearance between impeller and the cylindrical shell is 1.5 ‰ of impeller diameter～3.5 ‰.
Described I level impeller 4, II level impeller 7, III level impeller 10 are the plastic impeller of integral cast.
The blower performance index: air quantity is 430-600m3, and blast is 1242-8100pa, efficient greater than 80%, can reach 87%, noise [LSA(db)]: 11.5-25, vibration velocity effective value (mm/s): 1.4-4.2.
Claims (2)
1. three grades of axial flows of a flame-proof mine are to revolving booster, comprise slip ring, I level cylindrical shell, I level flameproof motor, I level impeller, II level cylindrical shell, II level flameproof motor, II level impeller, rear noise elimination diffuser, duct-joint, impeller is installed on the shaft extension of flameproof motor, characterized by further comprising III level cylindrical shell (8), III level flameproof motor (9), III level impeller (10), III level cylindrical shell (8) links to each other with II level cylindrical shell (5), III level flameproof motor (9) is installed on the III level cylindrical shell (8), and III level impeller (10) is installed on the shaft extension of III level flameproof motor (9), the position is near II level cylindrical shell (5); To revolving, III level impeller (10) and II level impeller (7) are each other to revolving each other for I level impeller (4), II level impeller (7); The number of blade of impeller prime number each other between adjacent level, III level flameproof motor (9) and I level flameproof motor (3), II level flameproof motor (6) power are identical; Radial clearance between every grade of impeller and the corresponding cylindrical shell is 1.5 ‰ of impeller diameter～3.5 ‰.
2. three grades of axial flows of flame-proof mine as claimed in claim 1 are to revolving booster, the number of blade that it is characterized in that described I level impeller (4) is 12, the number of blade of II level impeller (7) is 10, and the number of blade of III level impeller (10) is 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320237924 CN203201836U (en) | 2013-05-06 | 2013-05-06 | Mining flame-proof type three-level axial flow disrotatory local ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320237924 CN203201836U (en) | 2013-05-06 | 2013-05-06 | Mining flame-proof type three-level axial flow disrotatory local ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203201836U true CN203201836U (en) | 2013-09-18 |
Family
ID=49145947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320237924 Expired - Fee Related CN203201836U (en) | 2013-05-06 | 2013-05-06 | Mining flame-proof type three-level axial flow disrotatory local ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203201836U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443192A (en) * | 2018-05-29 | 2018-08-24 | 株洲联诚集团控股股份有限公司 | A kind of mining explosion-proof type counter-rotating axial fan |
-
2013
- 2013-05-06 CN CN 201320237924 patent/CN203201836U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443192A (en) * | 2018-05-29 | 2018-08-24 | 株洲联诚集团控股股份有限公司 | A kind of mining explosion-proof type counter-rotating axial fan |
| CN108443192B (en) * | 2018-05-29 | 2024-03-12 | 株洲联诚集团控股股份有限公司 | Explosion-proof disrotatory axial flow fan for mine |
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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: 20130918 Termination date: 20150506 |
|
| EXPY | Termination of patent right or utility model |