CN202851395U - Mass-flow, low-noise, three-dimensional flow axial double-suction centrifugal type blower - Google Patents
Mass-flow, low-noise, three-dimensional flow axial double-suction centrifugal type blower Download PDFInfo
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- CN202851395U CN202851395U CN 201120337120 CN201120337120U CN202851395U CN 202851395 U CN202851395 U CN 202851395U CN 201120337120 CN201120337120 CN 201120337120 CN 201120337120 U CN201120337120 U CN 201120337120U CN 202851395 U CN202851395 U CN 202851395U
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Abstract
The utility model relates to a centrifugal type blower, and particularly relates to a mass-flow, low-noise, three-dimensional flow axial double-suction centrifugal type blower for sintering plants. The centrifugal type blower at least includes a variable frequency motor, and a three-dimensional flow sintering blower fan, the variable frequency motor (2) is in a shaft connection with the three-dimensional flow sintering blower fan (4) via a shaft coupling (3), a high-level oil tank (1) is arranged at the upper end of the variable frequency motor (2) to connect with the pipeline of the variable frequency motor via an oil pipe. The centrifugal type blower provided, by adopting three-dimensional flow impellers, reduces the energy loss, improves the efficiency, reduces the blade deposition, reduces the outlet noises, improves the sintering output, and reduces the production cost.
Description
Technical field
The utility model relates to a kind of centrifugal blower, uses a kind of large flow, low noise, the axial double suction of three-dimensional flow to enter centrifugal blower especially for sintering plant.
Background technique
Theoretically, the performance curve of pressure-flow of centrifugal blower is straight line, but because there are the losses such as surface friction drag in blower fan inside, actual pressure versus flow characteristic curve is mild decline with the increase of flow, and the power-flow curve of corresponding centrifugal blower rises with the increase of flow.When blower fan during with constant-speed operation, the operating point of blower fan will move along the performance curve of pressure-flow.Operating point during fan operation not only depends on the performance of itself, and depends on the characteristic of system, and when resistance of pipe system increased, characteristic curve of pipeline was with steepening.The basic principle of Fan Regulation is exactly by changing performance curve or the outside network characteristic curve of blower fan itself, to obtain required operating mode.
Traditional sintering plant is comprised of drive motor+hydraulic couplers+two-dimensional current sintering blower fan with two-dimensional current sintering blower fan, the two-dimensional current impeller can not arbitrarily be controlled owing to its blade shape, inevitably there is the angle of attack in the blade working chamber inlet, the load skewness that causes easily blade surface, cause thus to have larger velocity gradient in the impeller channel, cause larger flow losses.
Summary of the invention
The axial double suction of large flow, low noise, three-dimensional flow that the purpose of this utility model provides a kind of preferably airflow characteristic enters centrifugal blower.
The purpose of this utility model is to realize like this, a kind of large flow, low noise, the axial double suction of three-dimensional flow enter centrifugal blower, which comprises at least: variable-frequency motor, three-dimensional flow sintering blower fan, variable-frequency motor is connected with three-dimensional flow sintering fan shaft by coupling, top petrol tank is connected with the variable-frequency motor pipeline by oil pipe in the upper end of variable-frequency motor.
Described three-dimensional flow sintering blower fan comprises: casing, slip ring, rotor, shaft end seal, support, casing is three seperation formula structure, intermediate casing is slip ring fixedly, the two ends casing forms transitional surface by two ends shaft end seal and intermediate casing and is connected, casing air channel, two ends communicates with the slip ring air channel, rotor blade in the slip ring is three-dimensional twisted, and slip ring is connected with spring bearing to the outrigger shaft at two ends.
Described transitional surface is inclined-plane or curved surface.
Described rotor comprises the import circle, shrouding disc, pressure ring, blade, mid-game, wheel hub, the import circle, shrouding disc, pressure ring, blade, mid-game, wheel hub is socketed on the rotor shaft, blade is above-mentioned said three-dimensional twisted, blade around one week of rotor shaft outwards launches with involute, form many curved surfaces air channel between the blade, involute outwards launches blade and is fixed on and forms impeller on the beam barrel, the impeller beam barrel has via hole, the beam barrel left end has pressure ring successively, shrouding disc, the import circle, the beam barrel right-hand member has wheel hub successively, shrouding disc, the import circle, left pressure ring and right wheel hub have the axis hole corresponding with beam barrel, by bolt and nut with pressure ring, impeller, mid-game, wheel hub connects.
Three parts of three-dimensional flow sintering fan casing are for being welded to connect.
The utility model has the advantages that; Centrifugal blower three-dimensional flow impeller is compared with the two-dimensional current impeller, and the load of its blade surface distributes or there is very big-difference in velocity distribution.The three-dimensional flow impeller is because its blade shape can require to determine that blade inlet can be designed to the zero-incidence air inlet that the blade surface load of acquisition distributes often more even, thereby has preferably airflow characteristic according to air current flow.
The configuration of its blade of three-dimensional flow impeller is more suitable for the three dimensional motion rule of fluid and superior flow characteristic than two-dimensional current impeller (usually having circular arc vane or straight line type blade).Blower fan adopts the three-dimensional flow impeller, has reduced energy loss, has improved fan efficiency, has reduced vane dust deposition and reduced the outlet noise, improved sintering output, reduced cost of production.Under the constant condition of flow, pressure, adopt the three-dimensional flow impeller, make its fan efficiency improve 5～8%, reducing noise 2～3dB.
The utility model is described in further detail below in conjunction with embodiment's accompanying drawing:
Description of drawings
Fig. 1 is the utility model example structure schematic representation;
Fig. 2 is three-dimensional flow sintering blower fan structure schematic representation;
Fig. 3 is the concrete organigram of rotor.
Among the figure, 1, top petrol tank; 2, variable-frequency motor; 3, coupling; 4, three-dimensional flow sintering blower fan; 301, import circle; 302, shrouding disc; 303, bolt; 304, pressure ring; 305, blade; 306, mid-game; 307, wheel hub; 308, nut; 401, casing; 402, slip ring; 403, rotor; 404, shaft end seal; 405, support.
Embodiment
As shown in Figure 1, a kind of large flow, low noise, the axial double suction of three-dimensional flow enter centrifugal blower, which comprises at least: variable-frequency motor, three-dimensional flow sintering blower fan, variable-frequency motor 2 is connected with three-dimensional flow sintering blower fan 4 axles by coupling 3, top petrol tank 1 is connected with the variable-frequency motor pipeline by oil pipe in the upper end of variable-frequency motor 2.
The three-dimensional flow blower fan structure as shown in Figure 2, comprise: casing 401, slip ring 402, rotor 403, shaft end seal 404, support 405, casing is three seperation formula structure, intermediate casing is slip ring 402 fixedly, the two ends casing forms transitional surface by two ends shaft end seal 404 and intermediate casing and is connected, transitional surface is inclined-plane or curved surface, casing air channel, two ends communicates with slip ring 402 air channels, rotor blade in the slip ring 402 is three-dimensional twisted, make the rotor blade of suction slip ring 402 wind in slip ring 402 form different reflex angles, reduce the resistance of wind, slip ring 402 is connected with support 405 bearings to the outrigger shaft at two ends.
Three-dimensional flow sintering fan casing 401 adopts traditional welding technique, and flange connects with bolt.Adopt high-speed fan three-dimensional flow blade welding procedure between impeller shroud, blade, the hub disk.Impeller and main shaft adopt has the key interference fit to install.Axle sleeve and blower fan shroud have formed the round and smooth flow passage system of a cover, and air-flow can smooth and easyly be flow through, and have improved the utilization efficiency of blower fan.
Three-dimensional flow centrifugal blower working principle: blower has the rotor of a high speed rotating, epitrochanterian blade drives the air high-speed motion, centrifugal force makes air in the casing of involute shape, and along involute flow to fan outlet, air-flow at a high speed has certain blast.New air enters additional by the center of casing.When motor rotates the rotation of drive draught fan impeller, fluid between the impeller blade is and then rotation also, and under centrifugal action, throw away gas, gas flow rate increases, make gas in flowing, be converted to static energy to kinetic energy, then along with the supercharging of fluid, make static energy be converted to again the speed energy, by the relief opening Exhaust Gas.And go out to form certain negative pressure at the impeller axial entrance, and because the ingress is negative pressure state, ambient atmos is filled into immediately under atmospheric effect, under impeller continuous rotation rotary action, constantly discharge and fill into gas, thereby reach the purpose of continuous blast.
Theory of Three-dimensional Flowing is exactly that the ternary solid space of impeller inside is ad infinitum cut apart, by the analysis to each working sections in the impeller channel, set up complete, the mathematical model that real impeller inner fluid flows, the blade shape that designs according to Theory of Three-dimensional Flowing is irregular warp surface shape, the structure of impeller blade can adapt to the mobile situation of real gas of fluid and can control the inner all velocity distribution of fluid particles of impeller, use the large flow of three-dimensional flow braking technique Theoretical Design, low noise, double suction enters the three-dimensional flow centrifugal blower, operational efficiency is high, and noise is low, has obvious effects of energy conservation and environmental protection.
Claims (5)
1. a large flow, low noise, the axial double suction of three-dimensional flow enter centrifugal blower, it is characterized in that: which comprises at least: variable-frequency motor, three-dimensional flow sintering blower fan, variable-frequency motor (2) is connected with three-dimensional flow sintering blower fan (4) axle by coupling (3), top petrol tank (1) is connected with the variable-frequency motor pipeline by oil pipe in the upper end of variable-frequency motor (2).
2. a kind of large flow according to claim 1, low noise, the axial double suction of three-dimensional flow enters centrifugal blower, it is characterized in that: described three-dimensional flow sintering blower fan comprises: casing (401), slip ring (402), rotor (403), shaft end seal (404), support (405), casing is three seperation formula structure, intermediate casing is slip ring (402) fixedly, the two ends casing forms transitional surface by two ends shaft end seal (404) and intermediate casing and is connected, casing air channel, two ends communicates with slip ring (402) air channel, rotor blade in the slip ring (402) is three-dimensional twisted, and slip ring (402) is connected with support (405) bearing to the outrigger shaft at two ends.
3. a kind of large flow according to claim 2, low noise, the axial double suction of three-dimensional flow enter centrifugal blower, it is characterized in that: described transitional surface is inclined-plane or curved surface.
4. a kind of large flow according to claim 2, low noise, the axial double suction of three-dimensional flow enters centrifugal blower, it is characterized in that: described rotor (403) comprises import circle (301), shrouding disc (302), pressure ring (304), blade (305), mid-game (306), wheel hub (307), import circle (301), shrouding disc (302), pressure ring (304), blade (305), mid-game (306), wheel hub (307) is socketed on the rotor shaft, blade (305) is three-dimensional twisted, outwards launch with involute around the rotor shaft blade in (305) one weeks (301), form many curved surfaces air channel between the blade, involute outwards launches blade (305) and is fixed on and forms impeller on the beam barrel, the impeller beam barrel has via hole, the beam barrel left end has pressure ring (304) successively, shrouding disc (302), import circle (301), the beam barrel right-hand member has wheel hub (307) successively, shrouding disc (302), import circle (301), left pressure ring (304) and right wheel hub (307) have the axis hole corresponding with beam barrel, by bolt (303) and nut (308) with pressure ring (304), impeller, mid-game (306), wheel hub (307) connects.
5. a kind of large flow according to claim 2, low noise, the axial double suction of three-dimensional flow enter centrifugal blower, it is characterized in that: three parts of described casing (401) are for being welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120337120 CN202851395U (en) | 2011-09-08 | 2011-09-08 | Mass-flow, low-noise, three-dimensional flow axial double-suction centrifugal type blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120337120 CN202851395U (en) | 2011-09-08 | 2011-09-08 | Mass-flow, low-noise, three-dimensional flow axial double-suction centrifugal type blower |
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| Publication Number | Publication Date |
|---|---|
| CN202851395U true CN202851395U (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120337120 Expired - Lifetime CN202851395U (en) | 2011-09-08 | 2011-09-08 | Mass-flow, low-noise, three-dimensional flow axial double-suction centrifugal type blower |
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| Country | Link |
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| CN (1) | CN202851395U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742442A (en) * | 2014-01-13 | 2014-04-23 | 欧尚军 | Forward and reverse water absorption wheel |
| CN104653515A (en) * | 2015-02-15 | 2015-05-27 | 浙江理工大学 | Double-suction type centrifugal ventilation fan |
| CN110259711A (en) * | 2019-07-01 | 2019-09-20 | 肖志林 | A kind of bilobed wheel low-noise fan |
| CN110805573A (en) * | 2019-12-12 | 2020-02-18 | 四川德胜集团钒钛有限公司 | Impeller assembly of centrifugal fan |
-
2011
- 2011-09-08 CN CN 201120337120 patent/CN202851395U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742442A (en) * | 2014-01-13 | 2014-04-23 | 欧尚军 | Forward and reverse water absorption wheel |
| CN104653515A (en) * | 2015-02-15 | 2015-05-27 | 浙江理工大学 | Double-suction type centrifugal ventilation fan |
| CN110259711A (en) * | 2019-07-01 | 2019-09-20 | 肖志林 | A kind of bilobed wheel low-noise fan |
| CN110805573A (en) * | 2019-12-12 | 2020-02-18 | 四川德胜集团钒钛有限公司 | Impeller assembly of centrifugal fan |
| CN110805573B (en) * | 2019-12-12 | 2021-10-12 | 四川德胜集团钒钛有限公司 | Centrifugal fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181019 Address after: 710600 Room 101, building 1, green industrial park, Lintong District, Xi'an, Shaanxi. Patentee after: Shaanxi Jiahui Jiashun Industrial Co. Ltd. Address before: 710600 Green Industrial Park, Lintong District, Xi'an, Shaanxi Patentee before: Shaanxi Jiahui Fan Electromechanical Manufacture Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190606 Address after: 710000 No. 6 Taiyuan Road, Weiyang District, Xi'an City, Shaanxi Province, No. 1 Workshop of Xi'an Zhongkai Coal Mine Machinery Co., Ltd. Patentee after: Shaanxi Jiahui Power Technology Co., Ltd. Address before: 710600 Room 101, building 1, green industrial park, Lintong District, Xi'an, Shaanxi. Patentee before: Shaanxi Jiahui Jiashun Industrial Co. Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130403 |
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| CX01 | Expiry of patent term |