CN109340157A - A kind of high maintenance integral type centrifugal fan group - Google Patents
A kind of high maintenance integral type centrifugal fan group Download PDFInfo
- Publication number
- CN109340157A CN109340157A CN201811543741.9A CN201811543741A CN109340157A CN 109340157 A CN109340157 A CN 109340157A CN 201811543741 A CN201811543741 A CN 201811543741A CN 109340157 A CN109340157 A CN 109340157A
- Authority
- CN
- China
- Prior art keywords
- centrifugal fan
- fan group
- mounting rack
- motor
- high maintenance
- 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.)
- Pending
Links
- 238000012423 maintenance Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims 2
- 230000003137 locomotive effect Effects 0.000 abstract description 9
- 238000009434 installation Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000005119 centrifugation Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000826860 Trapezium Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/30—Vanes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/624—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of high maintenance integral type centrifugal fan groups, including collector, centrifugal impeller, mounting rack and motor, the motor is fixed on mounting rack, centrifugal impeller is mounted on the output shaft of motor, the collector, which is fixed on mounting rack, is placed in centrifugal impeller front end, it further include sliding rail and T-bolt, the sliding rail is equipped with the T-type sliding slot extended along its length, the mounting rack is mounted in T-type sliding slot by T-bolt, what the centrifugal fan group can be convenient is mounted and dismounted in locomotive, in order to repair or safeguard.
Description
Technical field
The present invention relates to centrifugal fan technical fields, and in particular to high maintenance integral type centrifugal fan group.
Background technique
With the development of economy, the speed of train is getting faster.Train to the weight of each component, is made an uproar while speed-raising
More stringent requirements are proposed for sound, volume and maintainability.Important component of the centrifugal fan group as cooling unit, performance tool
There is important role.Existing centrifugal fan group is directly to be mounted on locomotive by bolt, in installation centrifugal fan group
Or when need to dismantle centrifugal fan group from locomotive safeguarded when, need for bolt for fixing to be fully removed,
Its installation or removal process is caused to consume the plenty of time, meanwhile, when directly fixed with bolt, need the fixation hole on mounting rack
With the accurate centering of threaded hole, it is not easy to be installed.
Summary of the invention
The present invention be directed to more than problem propose a kind of high maintenance integral type centrifugal fan group, the centrifugal fan
What group can be convenient is mounted on locomotive or dismantles from locomotive.
The technological means that the present invention uses is as follows:
A kind of high maintenance integral type centrifugal fan group, including collector, centrifugal impeller, mounting rack and motor, institute
It states motor to be fixed on mounting rack, centrifugal impeller is mounted on the output shaft of motor, and the collector is fixed on mounting rack simultaneously
It is placed in centrifugal impeller front end, further includes sliding rail and T-bolt, the sliding rail is equipped with the T-type sliding slot extended along its length,
The mounting rack is mounted in T-type sliding slot by T-bolt；
Further, the T-type sliding slot includes screw rod holding tank and card slot, and there are two sliding surface, institutes for tool in the card slot
It states two sliding surfaces to be oppositely arranged using the middle line of T-type sliding slot as symmetry axis, and the middle line of sliding surface and T-type sliding slot tilts so that card
Slot depth on direction of the middle line along T-type sliding slot to two sides gradually increases,
The T-bolt includes head and screw rod, and the head is fixed on screw rod one end, and the head has the one of screw rod
End face be equipped with the sliding surface have equal angular card access surface, the screw rod be equipped with for by T-bolt and installation
The fixed fixture nut of frame；
Further, damper is additionally provided between the mounting rack and fixture nut；
Further, one end that collector is fixed on the mounting rack has mounting plate, on the mounting surface of the collector
Equipped with groove, sealing joint strip is equipped in groove；
Further, the centrifugal impeller includes shroud, backward inclined blade, hub disk and reel, shroud, backward inclined blade and after
Disk welds together, and reel is bolted with hub disk, and the hub disk has the conical socket recessed to shroud side, works as institute
When stating motor and connecting with centrifugal impeller, the motor front end is placed in conical socket；
Further, the cone angle of conical socket is 152 ° to 156 °；
Further, the shroud is circumferentially evenly equipped with multiple slots, and slot is rectangle, and backward inclined blade is inserted into slot and goes forward side by side
Row is welded and fixed；
Further, the output shaft of the motor is the axis of cone, and there are left hand thread, thread rotary orientation and impeller rotation direction in axis of cone front end
On the contrary；
Further, the two sides up and down of the front and back ends of the motor are equipped with scupper.
Compared with the prior art, high maintenance integral type centrifugal fan group of the present invention has below beneficial to effect
Fruit: 1, centrifugal fan group further includes sliding rail and T-bolt, and sliding rail is equipped with T-type sliding slot, and the mounting rack of centrifugal blower passes through T
Type bolt is connect with T-type sliding slot, during centrifugal blower installation and removal, it is only necessary to which release slightly is arranged on bolt
Nut reduces working strength；2, it is connect by T-bolt with T-type sliding slot due to mounting rack, what T-bolt can be convenient inserts
Enter in T-type sliding slot, therefore reduce the requirement to installation accuracy, alleviates the working strength of installation；3, have in T-type sliding slot and incline
Oblique sliding surface has card access surface engaged therewith on T-bolt, so that when T-bolt is placed in T-type sliding slot, sliding surface
It interacts with card access surface, so that motor automatic centering, ensure that installation accuracy；4, it is equipped between mounting rack and fixture nut
Damper can reduce the vibration being passed on centrifugal blower, guarantee its working life；5, it is recessed to be equipped with taper for centrifugal impeller
Slot, when motor and fixed centrifugal impeller, motor front end is placed in conical socket, be can reduce the volume of centrifugal blower group, is made
It is minimized；6, it is provided with slot on centrifugal impeller, can be convenient and is positioned in the blade welding process of centrifugal impeller.
Detailed description of the invention
Fig. 1 is the main view of high maintenance integral type centrifugal fan group disclosed by the invention；
Fig. 2 is Fig. 1 right view；
Fig. 3 is the enlarged drawing in Fig. 2 in dotted line；
Fig. 4 is the structure chart of sliding rail；
Fig. 5 is the structure chart of T-bolt；
Fig. 6 is the no structure chart of centrifugal impeller；
Fig. 7 is the right view of Fig. 6；
Fig. 8 a is the main view of collector；
Fig. 8 b is cross-sectional view at A-A in Fig. 8 a；
Fig. 9 is the structure chart of motor output shaft.
In figure: 1, collector, 10, groove, 11, sealing joint strip, 2, centrifugal impeller, 20, shroud, 21, backward inclined blade, 22,
Hub disk, 23, reel, 24, slot, 25, conical socket, 3, mounting rack, 30, mounting plate, 4, motor, 40, scupper, 41, output
Axis, 42, threaded portion, 43, tapered portion, 5, sliding rail, 50, T-type sliding slot, 51, screw rod holding tank, 52, card slot, 53, sliding surface, 6, T
Type bolt, 60, head, 61, screw rod, 62, card access surface, 7, fixture nut, 8, damper.
Specific embodiment
It is as depicted in figs. 1 and 2 a kind of high maintenance integral type centrifugal fan group disclosed by the invention, including collector
1, centrifugal impeller 2, mounting rack 3 and motor 4, the motor 4 are fixed on mounting rack 3, and centrifugal impeller 2 is mounted on motor 4
On output shaft 41, it further includes sliding rail 5 and T-bolt that the collector 1, which is fixed on mounting rack 3, which is placed in 2 front end of centrifugal impeller,
6, the sliding rail 5 is equipped with the T-type sliding slot 50 extended along its length, and the mounting rack 3 is mounted on T-type by T-bolt 6
In sliding slot 50.Sliding rail 5 is bolted on vehicle bottom mounting rail.
Specifically, as shown in Fig. 3, Fig. 4 and Fig. 5, the T-type sliding slot 50 includes screw rod holding tank 51 and card slot 52, described
There are two sliding surfaces 53, described two sliding surfaces 53 to be oppositely arranged using the middle line of T-type sliding slot 50 as symmetry axis for tool in card slot 52, institute
Stating T-bolt 6 includes head 60 and screw rod 61, and the head 60 is fixed on one end of screw rod 61, and the head 60 has screw rod
61 end face is equipped with the card access surface 62 for having equal angular with the sliding surface 53, and the screw rod 61 is equipped with for by T
The fixture nut 7 that type bolt 6 and mounting rack 3 are fixed.When T-bolt 6 is connect with T-type sliding slot 50, the head of T-bolt 6 is set
In card slot 52 and card access surface 62 is contacted with sliding surface 53, and T-bolt 6 can slide in T-type sliding slot 50.
As shown in Figure 1, collector 1, centrifugal impeller 2 and motor 4, which are installed on mounting rack 3, forms integral structure, peace
It shelves and is fixed with T-bolt 6 on 3, when the centrifugal fan group needs to be mounted on locomotive or disassemble to be safeguarded,
Loosening fixture nut slightly is only needed, can will slide in or out, avoid existing on the slave sliding rail of centrifugal blower entirety
Centrifugal blower needs the problems such as completely screwing in and screw out, cause time-consuming bolt in disassembly process.Centrifugation of the invention is logical
Blower fan group can be sat on locomotive by sliding rail, can also be lifted on locomotive.
The sliding surface 53 can be with the median perpendicular of T-type sliding slot 50, so that card slot 52 is rectangular channel.When the centrifugation is divulged information
When unit is lifted on locomotive, it is preferable that as shown in figure 4, the middle line of the sliding surface 53 and T-type sliding slot 50 tilts so that card slot
52 on direction of the middle line along T-type sliding slot 50 to two sides depth gradually increase that (i.e. the cross sectional shape of card slot is two upper bottoms pair
The right-angled trapezium connect, and side of the side of two trapezoidal rigging angle clamps in separate screw rod holding tank in sliding rail short transverse), institute
The card access surface 62 for stating head 60 is inclined-plane identical with trapezoidal oblique waist angle.When mounting rack 3 passes through T-bolt 6 and T-type sliding slot
When 50 connection, T-bolt 6 is under the gravity of centrifugal fan group, sliding surface and card access surface interaction, so that T-type spiral shell
The mutual centering of middle line of the middle line and T-type sliding slot of bolt, ensure that installation accuracy.
Further, as shown in figure 3, being additionally provided with damper 8 between the mounting rack 3 and fixture nut 7, it is possible to reduce machine
Vibration between vehicle and centrifugal fan group.
Further, as shown in Figure 1, fixing one end of collector 1 on the mounting rack 3 has mounting plate 30, such as Fig. 8 a
With shown in Fig. 8 b, the mounting surface of the collector 1 is equipped with groove 10, passes through dormant bolt in groove 10 for itself and mounting plate
It is fixedly connected, sealing joint strip 11 is equipped in groove 10.
Further, as shown in Figure 6 and Figure 7, the centrifugal impeller 2 include shroud 20, backward inclined blade 21, hub disk 22 and
Reel 23, shroud 20, backward inclined blade 21 and hub disk 22 weld together, and reel 23 is bolted with hub disk 22, after described
Disk 22 has the conical socket 25 recessed to 20 side of shroud, when the motor is connect with centrifugal impeller, the motor front end
It is placed in conical socket, when motor and fixed centrifugal impeller, motor front end is placed in conical socket, can reduce centrifugal blower
The volume of group, makes its miniaturization.Preferably, the cone angle of conical socket is 152 ° to 156 °.
Further, as shown in fig. 7,20 outer circle of the shroud is circumferentially evenly equipped with multiple slots 24, slot 24 is rectangle, after
It is inserted into slot and is welded and fixed to blade, it can be in order to be positioned to backward inclined blade, in order to carry out equipped with slot
Welding.
Further, as shown in figure 9, the output shaft 41 of the motor is the axis of cone, including threaded portion 42 and tapered portion 43, spiral shell
There is left hand thread in line portion 42, and thread rotary orientation is oppositely oriented with impeller, can loosen to avoid impeller.
Further, the two sides up and down of the front and back ends of the motor are equipped with scupper 40, can be convenient using seat dress
Or it can be discharged when lifting since the variation of extraneous high/low temperature makes to generate condensed water inside motor.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of high maintenance integral type centrifugal fan group, including collector, centrifugal impeller, mounting rack and motor, described
Motor is fixed on mounting rack, and centrifugal impeller is mounted on the output shaft of motor, and the collector is fixed on juxtaposition on mounting rack
In centrifugal impeller front end, it is characterised in that: further include sliding rail and T-bolt, the sliding rail is equipped with to be extended along its length
T-type sliding slot, the mounting rack is mounted in T-type sliding slot by T-bolt.
2. high maintenance integral type centrifugal fan group according to claim 1, it is characterised in that: the T-type sliding slot packet
Screw rod holding tank and card slot are included, tool is pair with the middle line of T-type sliding slot there are two sliding surface, described two sliding surfaces in the card slot
Claim axis to be oppositely arranged, and the middle line of sliding surface and T-type sliding slot tilt so that card slot in the middle line along T-type sliding slot to the direction of two sides
Upper depth gradually increases,
The T-bolt includes head and screw rod, and the head is fixed on screw rod one end, and the head has an end face of screw rod
It is equipped with the card access surface that there is equal angular with the sliding surface, the screw rod is equipped with for consolidating T-bolt and mounting rack
Fixed fixture nut.
3. high maintenance integral type centrifugal fan group according to claim 2, it is characterised in that: the mounting rack and solid
Determine to be additionally provided with damper between nut.
4. high maintenance integral type centrifugal fan group according to claim 3, it is characterised in that: solid on the mounting rack
The one end for determining collector has mounting plate, and the mounting surface of the collector is equipped with groove, is equipped with sealing joint strip in groove.
5. high maintenance integral type centrifugal fan group according to claim 4, it is characterised in that: the centrifugal impeller packet
Shroud, backward inclined blade, hub disk and reel are included, shroud, backward inclined blade and hub disk weld together, and reel and hub disk pass through bolt
Connection；
The hub disk has the conical socket recessed to shroud side, when the motor is connect with centrifugal impeller, the motor
Front end is placed in conical socket.
6. high maintenance integral type centrifugal fan group according to claim 4, it is characterised in that: the conical socket
Cone angle is 152 ° to 156 °.
7. high maintenance integral type centrifugal fan group according to claim 5, it is characterised in that: the shroud is circumferentially equal
Multiple slots are furnished with, slot is rectangle, and backward inclined blade is inserted into slot and is welded and fixed.
8. high maintenance integral type centrifugal fan group according to claim 6, it is characterised in that: the output of the motor
Axis is the axis of cone, and there is left hand thread in axis of cone front end, and thread rotary orientation is oppositely oriented with impeller.
9. high maintenance integral type centrifugal fan group according to claim 7, it is characterised in that: before the motor,
The two sides up and down of rear end are equipped with scupper.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543741.9A CN109340157A (en) | 2018-12-17 | 2018-12-17 | A kind of high maintenance integral type centrifugal fan group |
| PCT/CN2019/093309 WO2020124981A1 (en) | 2018-12-17 | 2019-06-27 | Integrated centrifugal fan set having high maintainability |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811543741.9A CN109340157A (en) | 2018-12-17 | 2018-12-17 | A kind of high maintenance integral type centrifugal fan group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109340157A true CN109340157A (en) | 2019-02-15 |
Family
ID=65304322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811543741.9A Pending CN109340157A (en) | 2018-12-17 | 2018-12-17 | A kind of high maintenance integral type centrifugal fan group |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109340157A (en) |
| WO (1) | WO2020124981A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020124981A1 (en) * | 2018-12-17 | 2020-06-25 | 中车大连机车研究所有限公司 | Integrated centrifugal fan set having high maintainability |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060034681A1 (en) * | 2004-08-16 | 2006-02-16 | Minel Kupferberg | Fan assembly and method |
| CN104265673A (en) * | 2014-10-10 | 2015-01-07 | 江苏富丽华通用设备有限公司 | Fixing support for axial flow fan motor |
| CN204415397U (en) * | 2014-12-16 | 2015-06-24 | 南车青岛四方机车车辆股份有限公司 | The car body of EMU and outer hood mounting structure |
| CN205532714U (en) * | 2016-02-03 | 2016-08-31 | 维机轨道交通科技（镇江）有限公司 | Antiskid channel |
| CN205841248U (en) * | 2016-03-25 | 2016-12-28 | 株洲联诚集团有限责任公司 | A kind of traction converter of motor train unit cooling blower without scroll casing type |
| CN206889302U (en) * | 2017-07-04 | 2018-01-16 | 江苏中科云控智能工业装备有限公司 | A kind of easy-to-mount heat abstractor electric fan |
| CN208057464U (en) * | 2018-04-02 | 2018-11-06 | 威海克莱特菲尔风机股份有限公司 | Centrifugal blower |
| CN209510680U (en) * | 2018-12-17 | 2019-10-18 | 中车大连机车研究所有限公司 | A kind of high maintenance integral type centrifugal fan group |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29719605U1 (en) * | 1997-11-05 | 1997-12-18 | Gebhardt Ventilatoren GmbH & Co, 74638 Waldenburg | Fan arrangement |
| CN201539421U (en) * | 2009-09-03 | 2010-08-04 | 上海诺地乐通用设备制造有限公司 | Extraction structure of centrifugal fan |
| CN206017216U (en) * | 2016-08-30 | 2017-03-15 | 安陆市盛鑫风机有限公司 | A kind of easy-to-mount centrifugal blower |
| CN206708100U (en) * | 2017-04-28 | 2017-12-05 | 宜昌市西峡泵业有限公司 | Centrifugal pump and the more size Matching installation pedestals of motor |
| CN109340157A (en) * | 2018-12-17 | 2019-02-15 | 中车大连机车研究所有限公司 | A kind of high maintenance integral type centrifugal fan group |
-
2018
- 2018-12-17 CN CN201811543741.9A patent/CN109340157A/en active Pending
-
2019
- 2019-06-27 WO PCT/CN2019/093309 patent/WO2020124981A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060034681A1 (en) * | 2004-08-16 | 2006-02-16 | Minel Kupferberg | Fan assembly and method |
| CN104265673A (en) * | 2014-10-10 | 2015-01-07 | 江苏富丽华通用设备有限公司 | Fixing support for axial flow fan motor |
| CN204415397U (en) * | 2014-12-16 | 2015-06-24 | 南车青岛四方机车车辆股份有限公司 | The car body of EMU and outer hood mounting structure |
| CN205532714U (en) * | 2016-02-03 | 2016-08-31 | 维机轨道交通科技（镇江）有限公司 | Antiskid channel |
| CN205841248U (en) * | 2016-03-25 | 2016-12-28 | 株洲联诚集团有限责任公司 | A kind of traction converter of motor train unit cooling blower without scroll casing type |
| CN206889302U (en) * | 2017-07-04 | 2018-01-16 | 江苏中科云控智能工业装备有限公司 | A kind of easy-to-mount heat abstractor electric fan |
| CN208057464U (en) * | 2018-04-02 | 2018-11-06 | 威海克莱特菲尔风机股份有限公司 | Centrifugal blower |
| CN209510680U (en) * | 2018-12-17 | 2019-10-18 | 中车大连机车研究所有限公司 | A kind of high maintenance integral type centrifugal fan group |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020124981A1 (en) * | 2018-12-17 | 2020-06-25 | 中车大连机车研究所有限公司 | Integrated centrifugal fan set having high maintainability |
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| Publication number | Publication date |
|---|---|
| WO2020124981A1 (en) | 2020-06-25 |
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