CN201284760Y - Chamber type scroll centrifugal fan used for power dispersion type motor train unit cooling apparatus - Google Patents
Chamber type scroll centrifugal fan used for power dispersion type motor train unit cooling apparatus Download PDFInfo
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- CN201284760Y CN201284760Y CNU2008202188833U CN200820218883U CN201284760Y CN 201284760 Y CN201284760 Y CN 201284760Y CN U2008202188833 U CNU2008202188833 U CN U2008202188833U CN 200820218883 U CN200820218883 U CN 200820218883U CN 201284760 Y CN201284760 Y CN 201284760Y
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- centrifugal blower
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Abstract
The utility model relates to a case type volute centrifugal fan for a cooling device of a power dispersing type motor train unit. The utility model is characterized in that a gas collecting case is arranged at the front end of a case type volute of the fan; the case body at the front side of the case type volute is provided with a curved surface dispenser mounting seat, and the case body at the rear side of the case type volute is provided with a motor mounting seat; the centrifugal type fan impeller is arranged in the case body of the case type volute of the fan; the impeller is arranged at the shaft end of the motor; and the gas collecting case, the curved surface dispenser, the impeller and the motor are transversally arranged along the train in sequence. The case type volute centrifugal fan has the advantages of compact structure, high reliability, strong ventilation capability, low power energy consumption, small vibration, low noise, and the like.
Description
Technical field
The utility model relates to high speed power decentralized formula rail motor set cooling unit with box volute centrifugal blower, belongs to the heat transfer technology field.
Background technique
Since the Sixteenth CPC National Congress, China railways department is according to the general requirement of " import of advanced technology; do the design and production together; build China's own brands ", since 2004, to the year ends 2005, Chinese Nan Che four directions rolling stock joint-stock company of group and Kawasaki, Japan heavy industry, Chinese northern car Changchun trolley coach Co., Ltd of group and French Alstom, Chinese northern car Tangshan track bus limited liability company of group and Siemens etc. are competed to such an extent that the Ministry of Railways's 180 row high speed power decentralized formula electric motor cars make up together altogether; 2007, the Ministry of Railways signed the power decentralized formula rail motor set contract of 200 kilometers of 60 row first draft group speed per hours respectively with Qingdao four directions and Canadian Pang Badi, be equivalent to the short rail motor set of organizing into groups of 120 row.May reach 1,600,000,000 person-times to railway passenger volume in 2010.Realize this target, mainly rely on rail motor set.The five-year, the demand of the power decentralized formula electric motor car group that speed per hour is 200～300 kilometers are stages that continues buying.To about 2011, the sum of power decentralized formula electric motor car group will reach 700 row.Up to the present, only have 100 surplus 200～300 kilometers power decentralized formulas of row speed per hour electric motor car group on-line running, comprise harmonious CRH2, CRH3, CRH5 type.Because power decentralized formula rail motor set cooling unit is lifted under the bus deck, the space is narrower and small, and tighter with the size restrictions of blower fan to cooling unit, performance requirement is higher, and the rail motor set of running at high speed are high to the reliability requirement of blower fan, and noise and vibration that blower fan is produced require harsh.At present, the blower fan of domestic conventional structure still can not satisfy above-mentioned requirements.
Summary of the invention
The purpose of this utility model is to absorb the advanced technology of external power decentralized formula rail motor set cooling unit with blower fan, and to satisfy an urgent demand of Related product production domesticization, for railway transport provides a kind of compact structure, reliability height, draught capacity is strong, power consumpiton is low, vibration is little, noise the is low power decentralized formula rail motor set cooling unit box volute centrifugal blower with alternative import.
The structure of box volute centrifugal blower is: on the rear side cabinet exterior of box volute motor mounting seat and motor are set, motor shaft end extend in the box volute, be disposed with gas collecting box by preceding side box body to back side box body in the box volute, curved surface diffuser fitting seat and curved surface diffuser, and be installed in the impeller of motor shaft end.The curved surface diffuser seamlessly transits near impeller end and impeller wind inlet section curved surface, and radially is provided with the gap between the two.The gas collecting box of box volute front end can be a cuboid, also can be curved surface.Be coated with heat insulation and acoustic absorption noise reducing damping material layer in the box volute.The air outlet of box volute is provided with protective net.The shared box volute of a plurality of centrifugal blowers is provided with dividing plate and constitutes the box volute centrifugal blower of multiple row group between adjacent two centrifugal blower volutes.
The front end of the box volute of blower fan is provided with gas collecting box, and curved surface diffuser fitting seat is set on the preceding side box body of box volute, on the back side box body of box volute the motor mounting seat is set, and in the casing of the box volute of blower fan centrifugal fan is set.The curved surface diffuser is installed on the preceding side box body of box volute, and motor mounting is on the back side box body of box volute, and impeller is installed in motor shaft end.Gas collecting box, curved surface diffuser, impeller, motor laterally are arranged in order along train.
The structure of box volute centrifugal blower group is that single-row box volute centrifugal blower is set up in parallel, and the shared box volute of a plurality of centrifugal blowers makes its runner independent but dividing plate is set between adjacent two centrifugal blower volutes.
During centrifugal blower work, centrifugal blower fan blade wheel is under the driving of motor, the drive ambient air outside flows, from train side inspiration cooling air, cooling air is through gas collecting box, after entering draught fan impeller along the curved surface diffuser,, flow to again in the middle of the environment of train bottom along radially entering the box volute of blower fan.
Box volute centrifugal blower is provided with gas collecting box at the front end of box volute, and gas collecting box can be a cuboid, also can be designed to curved surface; On the preceding side box body of box volute, the curved surface diffuser is set, the curved surface diffuser seamlessly transits near impeller end and impeller wind inlet section curved surface, and radially leave an amount of gap between the two, design can make cooling air flow equably in radiator like this, and makes cooling air enter centrifugal blower smoothly.This kind structural design helps to improve the exchange capability of heat of radiator, reduces air intlet because of ventilation section changes the pressure loss that causes, reduces the noise that causes because of the air intake abrupt change of cross-section simultaneously.
Box volute centrifugal blower sprays heat insulation and acoustic absorption noise reducing damping material layer in box volute, can reduce the noise of blower fan radiation, increases the winter protection ability of blower fan group simultaneously, guarantees the normal use of cold season in the winter time of blower fan group.
Box volute centrifugal blower, steel plate or steel wire protective net are set in the air outlet of box volute, can prevent that the leaf on the track, the high velocity air that produces when plastic bag is run at high speed by train from bringing into stops up the draught fan impeller relief opening in the volute, influence the performance of ventilating of blower fan; Also can avoid rubble on the track to be brought into and smash impeller in the volute, influence train safe and travel by high velocity air.
The box volute centrifugal blower of described multiple row group is provided with dividing plate between each centrifugal blower volute, make each centrifugal blower group runner independent, can not influence the whole performance of ventilating of blower fan group because of the mutual interference of multi fan air draft phase.
The box volute centrifugal blower of biserial after global design group noise level reaches the advanced level of external like product.
Box volute centrifugal blower of the present utility model adopts whole supporting design method, realizes rational Match between curved surface diffuser, draught fan impeller, the volute, is satisfying under the prerequisite of air-conditioning requirement, reduces the shared spatial volume of blower fan, makes more compact structure.These characteristics are for the utilization of power decentralized formula rail motor set provides a kind of new technology.
Box volute centrifugal blower of the present utility model is provided with the curved surface diffuser on the preceding side box body of box volute; The curved surface diffuser seamlessly transits near impeller end and impeller wind inlet section curved surface, and radially leaves an amount of gap between the two; At box volute inner chamber spraying heat insulation and acoustic absorption acoustic damping materials layer, reduced the vibration and the radiated noise of blower fan effectively, increase blower fan group winter protection ability simultaneously.Vibration and noise reducing can improve passenger's ride quality, improves the winter protection ability and can reduce the maintenance cost of unit of operation, increases economic efficiency.These characteristics, the utilization that is similarly power decentralized formula rail motor set provides a kind of new technology.
The advantage of the box volute centrifugal blower of the utility model is, compact structure, reliability height, draught capacity is strong, power consumpiton is low, vibration is little, noise is low.
Description of drawings:
Fig. 1 is the utility model power decentralized formula rail motor set cooling unit with box volute centrifugal blower front-end architecture schematic representation.
Fig. 2 is the utility model power decentralized formula rail motor set cooling unit with box volute centrifugal blower rear end structural representation.
Fig. 3 is the sectional view of Fig. 1.
Embodiment:
Now the utility model is described in further detail in conjunction with the accompanying drawings: with reference to Fig. 1, Fig. 2, power decentralized formula rail motor set cooling unit is provided with box volute 1 with box volute centrifugal blower, front end at box volute 1 is provided with gas collecting box 6, curved surface diffuser fitting seat is set on the preceding side box body 2 of box volute, curved surface diffuser 4 is installed on this fitting seat, is connected and fixed by fastening piece 3 between the two.On the back side box body 11 of box volute the motor mounting seat is set, motor 9 is installed on this fitting seat, is connected and fixed by fastening piece 10 between the two.Centrifugal fan impeller 5 is set in the casing of box volute.Impeller is installed in motor shaft end.Gas collecting box 6, curved surface diffuser 4, impeller 5, motor 9 laterally are arranged in order along train.Exhaust outlet at box volute 1 is provided with protective net 7.For the box volute centrifugal blower of multiple row group, between each centrifugal blower volute, dividing plate 8 is set, make each centrifugal blower group runner independent.At box volute surface of internal cavity spraying heat insulation sound absorbent damping material layer.
Claims (6)
1 one kinds of power decentralized formula rail motor set cooling units are with box volute centrifugal blower, it is characterized in that: motor mounting seat and motor (9) thereof are set on the rear side cabinet exterior of box volute (1), motor shaft end extend in the box volute, be disposed with gas collecting box (6) by preceding side box body to back side box body in the box volute, curved surface diffuser fitting seat and curved surface diffuser (4) thereof, and be installed in the impeller (5) of motor shaft end.
2 power decentralized formula rail motor set cooling units according to claim 1 is characterized in that with box volute centrifugal blower: curved surface diffuser (4) seamlessly transits near impeller end and impeller (5) wind inlet section curved surface, and radially is provided with the gap between the two.
3 power decentralized formula rail motor set cooling units according to claim 1 are with box volute centrifugal blower, and it is characterized in that: the gas collecting box (6) of box volute (1) front end can be a cuboid, also can be curved surface.
4 power decentralized formula rail motor set cooling units according to claim 1 is characterized in that: be coated with heat insulation and acoustic absorption noise reducing damping material layer in the box volute (1) with box volute centrifugal blower.
5 power decentralized formula rail motor set cooling units according to claim 1 are with box volute centrifugal blower, and it is characterized in that: the air outlet of box volute (1) is provided with protective net (7).
6 power decentralized formula rail motor set cooling units according to claim 1 are with box volute centrifugal blower, it is characterized in that: the shared box volutes of a plurality of centrifugal blowers (1) are provided with dividing plate (8) and constitute the box volute centrifugal blower of multiple row group between adjacent two centrifugal blower volutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202188833U CN201284760Y (en) | 2008-10-31 | 2008-10-31 | Chamber type scroll centrifugal fan used for power dispersion type motor train unit cooling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202188833U CN201284760Y (en) | 2008-10-31 | 2008-10-31 | Chamber type scroll centrifugal fan used for power dispersion type motor train unit cooling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201284760Y true CN201284760Y (en) | 2009-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202188833U Expired - Lifetime CN201284760Y (en) | 2008-10-31 | 2008-10-31 | Chamber type scroll centrifugal fan used for power dispersion type motor train unit cooling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201284760Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208252A (en) * | 2011-03-04 | 2011-10-05 | 无锡金鑫集团有限公司 | Three-fan cooling system of motor train unit traction transformer |
| CN102208253A (en) * | 2011-03-04 | 2011-10-05 | 无锡金鑫集团有限公司 | Two-fan cooling system of tractive transformer of motor train unit |
| CN102536857A (en) * | 2010-12-13 | 2012-07-04 | 洛阳北玻台信风机技术有限责任公司 | Cooling fan for traction converter of high-speed electric locomotive |
| CN103343754A (en) * | 2013-06-28 | 2013-10-09 | 中国北车集团大连机车研究所有限公司 | Centrifugal fan set used for cooling high speed train traction motor |
| CN105756981A (en) * | 2016-04-26 | 2016-07-13 | 浙江理工大学 | Noise reduction fan wall for shell-free centrifugal fan |
-
2008
- 2008-10-31 CN CNU2008202188833U patent/CN201284760Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102536857A (en) * | 2010-12-13 | 2012-07-04 | 洛阳北玻台信风机技术有限责任公司 | Cooling fan for traction converter of high-speed electric locomotive |
| CN102208252A (en) * | 2011-03-04 | 2011-10-05 | 无锡金鑫集团有限公司 | Three-fan cooling system of motor train unit traction transformer |
| CN102208253A (en) * | 2011-03-04 | 2011-10-05 | 无锡金鑫集团有限公司 | Two-fan cooling system of tractive transformer of motor train unit |
| CN103343754A (en) * | 2013-06-28 | 2013-10-09 | 中国北车集团大连机车研究所有限公司 | Centrifugal fan set used for cooling high speed train traction motor |
| CN105756981A (en) * | 2016-04-26 | 2016-07-13 | 浙江理工大学 | Noise reduction fan wall for shell-free centrifugal fan |
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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: 20090805 |
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| CX01 | Expiry of patent term |