CN201546981U - Axial flow fan in super long tunnel construction on plateau - Google Patents
Axial flow fan in super long tunnel construction on plateau Download PDFInfo
- Publication number
- CN201546981U CN201546981U CN 200920254404 CN200920254404U CN201546981U CN 201546981 U CN201546981 U CN 201546981U CN 200920254404 CN200920254404 CN 200920254404 CN 200920254404 U CN200920254404 U CN 200920254404U CN 201546981 U CN201546981 U CN 201546981U
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- impeller
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- plateau
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Abstract
An axial flow fan in the super long tunnel construction on a plateau aims to realize the purposes of long air distance, low noise, high efficiency, and large air quantity. The axial flow fan comprises an air inlet muffler, a primary host machine, a secondary host machine, a third host machine, a fourth host machine, a primary impeller, a secondary impeller, a third impeller, a fourth impeller, an air outlet muffler, a blast pipe connector and a sound-absorbing panel; the blade molded line of the impeller blade adopts a airfoil twisted type; each impeller of the host machine is driven by the electric motor with same power; the impeller adopts the type of direct connection with the motor; the rotation directions of adjacent impellers are reverse; the primary impeller and a secondary impeller, and the third impeller and the fourth impeller rotate mutually; the sound-absorbing panel is respectively arranged on two sides of the casing of the host machine; and each connection component is connected by the galvanized bolt with high strength, and the joint of the flange is sealed.
Description
Technical field
The utility model relates to the special-purpose propeller fan of a kind of plateau Super Long Tunnel construction.
Background technique
Along with China implements strategy to develop western regions, western plateau section railway of China and highway construction paces are accelerated, and the tunnel of building on the plateau also increases gradually, and the plateau section atmospheric pressure is little, oxygen content is low, day and night temperature is big, has proposed new demand for tunnel construction and operation.When existing Plain tunnel construction propeller fan used in the plateau section, because rarefaction of air, atmospheric pressure was very low, and the air quantity of blower fan, blast just can't reach user's air-conditioning requirement.And fan condition point and blower fan actual operating mode depart from very greatly, makes blower fan that surge take place easily, influenced working life, simultaneously, also increased noise.
Summary of the invention
This purpose is the deficiency that overcomes above-mentioned prior art, and the plateau Super Long Tunnel construction that a kind of air supplying distance is far away, noise is low, efficient is high, air quantity is big propeller fan is provided.
The utility model comprises air inlet silencer, one-level main frame, secondary main frame, three grades of main frames, level Four main frame, one-level impeller, sencond stage impeller, three grades of impellers, level Four impeller, air outlet baffler, blast connection and acoustic boards; The blade profile line of impeller blade is a wing distortion formula, air inlet and go out air-flow and can pass through blade sleekly, the eddy current loss of minimizing blade; Host shell adopts the doubling plate welding, and outer Fine Steel Casting iron plate by adequate thickness is welded, and internal layer is the noise reduction orifice plate, and middle lining is with superfine glass silk flosssilk wadding, excellent noise reduction effect.The host shell both sides are provided with acoustic board, and it mainly acts on is the blower fan body area to be carried out sound insulation handle, and the noise of its generation is reduced greatly.For reducing pneumatic noise, with the cylindrical shell length lengthening of suction port hush pipe and air outlet hush pipe, this runner that also just extended guarantees air-flow flow ventilation pipeline stably.All adopt the high strength galvanized bolt to connect between each relay part, flange connections adopts and is tightly connected.
Air-flow enters main engine body through air inlet silencer, and every grade of impeller of main frame is by the identical motoring of power, and impeller adopts and motor direct connection pattern, and adjacent impeller sense of rotation is opposite, I and II impeller, three, the level Four impeller is each other to revolving.Air-flow enters first order impeller and obtains energy, quickens through second level impeller, quickens to discharge through the third level, level Four impeller again.Two, the level Four impeller is having both the function of quiet stator in the common axial fan, when obtaining the circumferencial direction velocity component, increases the energy of air-flow, thereby reaches blast and the efficient higher than twin-stage convection rotary type ventilator.The air-flow that produces after the impeller acting, after the noise reduction of air outlet, utilization is connected with blast connection and fixing airduct is transported to the tunnel inner working face.
The utility model is applicable to that high altitude environment is got down the highway, the tunnel construction driving of railway and diversion works ventilates, has characteristics such as air supplying distance is far away, noise is low, efficient is high, air quantity is big, and after the surface treatment through strictness, integral body is sturdy and durable, and the life-span is long; Minimum design service life was not less than 20 years.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1, slip ring, 2, bolt connection piece, 3, the suction port hush pipe, 4, one-level main frame, 5, the one-level impeller, 6, sencond stage impeller, 7 motors, 8, the secondary main frame, 9, three grades of main frames, 10, three grades of impellers, 11, level Four impeller, 12, the level Four main frame, 13, the air outlet hush pipe, 14, blast connection, 15, acoustic board.
Embodiment
Convenient for adjusting angle, adopt the external regulation type structure, only need open the adjusting cover plate during adjusting, with the angle of blade adjustments, make the prime power of blower fan reach rated power with the blade adjustments instrument to correspondence, ventilate to be applicable under the altitude environment.Starting mode adopts variable frequency starting mode or self coupling step-down, can reduce the impact to electrical network, also can reach energy-saving benefit by control frequency.Start and be furnished with the electricity consumption display unit cashier's office in a shop, can intuitively find out power consumption, power savings comes into plain view.Adapted tunnel blower fan motor special is not shut down oil-filling device in the setting of blower fan engine body exterior, maintains easily, maintains.The efficient district broad of impeller blade there is no tangible hump, and blast is steady, efficiently can reach 80%.The impeller blade surface need be carried out sand blast, flame spraying and electric arc spraying processing successively, satisfies the needs that ventilate under high and cold, the rich water environment, guarantees that not only its intensity is 20 times of common material, and has advantages such as corrosion-resistant.To change the changes in demand of air quantity in the hole, blast in the using process according to the continuous propelling of tunnel construction process, have the movable vane of shutdown adjustable function.
Claims (2)
1. plateau Super Long Tunnel construction propeller fan is characterized in that comprising air inlet silencer, one-level main frame, secondary main frame, three grades of main frames, level Four main frame, one-level impeller, sencond stage impeller, three grades of impellers, level Four impeller, air outlet baffler, blast connection and acoustic boards; The blade profile line of impeller blade is a wing distortion formula, and every grade of impeller of main frame is by the identical motoring of power, and impeller adopts and motor direct connection pattern, and adjacent impeller sense of rotation is opposite, I and II impeller, three, the level Four impeller is each other to revolving; The host shell both sides are provided with acoustic board; All adopt the high strength galvanized bolt to connect between each relay part, flange connections adopts and is tightly connected.
2. Super Long Tunnel construction propeller fan in plateau as claimed in claim 1 is characterized in that host shell adopts the doubling plate welding, and skin is welded by the Fine Steel Casting iron plate, and internal layer is the noise reduction orifice plate, and middle lining is with the superfine glass silk flosssilk wadding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920254404 CN201546981U (en) | 2009-11-05 | 2009-11-05 | Axial flow fan in super long tunnel construction on plateau |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920254404 CN201546981U (en) | 2009-11-05 | 2009-11-05 | Axial flow fan in super long tunnel construction on plateau |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201546981U true CN201546981U (en) | 2010-08-11 |
Family
ID=42602152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920254404 Expired - Lifetime CN201546981U (en) | 2009-11-05 | 2009-11-05 | Axial flow fan in super long tunnel construction on plateau |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201546981U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032348A (en) * | 2013-01-08 | 2013-04-10 | 张建中 | Axial flow type fluid supercharger with independent adjustable moving plate |
| CN103047177A (en) * | 2012-12-19 | 2013-04-17 | 平安电气股份有限公司 | Mining combined local fan with tandem cascade |
| CN103206393A (en) * | 2013-05-06 | 2013-07-17 | 淮北兴海工贸有限责任公司 | Mining flame-proof type third-level axial flow disrotatory local fan |
| CN107524617A (en) * | 2017-08-24 | 2017-12-29 | 南通迪瓦特节能风机有限公司 | The cold axial flow blower of noise reduction ring |
| CN110219834A (en) * | 2019-07-23 | 2019-09-10 | 山西省侯马市鑫丰康风机有限公司 | A kind of low noise axial ventilator |
-
2009
- 2009-11-05 CN CN 200920254404 patent/CN201546981U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047177A (en) * | 2012-12-19 | 2013-04-17 | 平安电气股份有限公司 | Mining combined local fan with tandem cascade |
| CN103032348A (en) * | 2013-01-08 | 2013-04-10 | 张建中 | Axial flow type fluid supercharger with independent adjustable moving plate |
| CN103206393A (en) * | 2013-05-06 | 2013-07-17 | 淮北兴海工贸有限责任公司 | Mining flame-proof type third-level axial flow disrotatory local fan |
| CN103206393B (en) * | 2013-05-06 | 2015-05-06 | 淮北兴海工贸有限责任公司 | Mining flame-proof type third-level axial flow disrotatory local fan |
| CN107524617A (en) * | 2017-08-24 | 2017-12-29 | 南通迪瓦特节能风机有限公司 | The cold axial flow blower of noise reduction ring |
| CN107524617B (en) * | 2017-08-24 | 2019-08-23 | 南通迪瓦特节能风机有限公司 | The cold axial flow blower of noise reduction ring |
| CN110219834A (en) * | 2019-07-23 | 2019-09-10 | 山西省侯马市鑫丰康风机有限公司 | A kind of low noise axial ventilator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |
|
| CX01 | Expiry of patent term |