CN104728135A - Maintainable centrifugal axial-flow fan - Google Patents
Maintainable centrifugal axial-flow fan Download PDFInfo
- Publication number
- CN104728135A CN104728135A CN201510111978.XA CN201510111978A CN104728135A CN 104728135 A CN104728135 A CN 104728135A CN 201510111978 A CN201510111978 A CN 201510111978A CN 104728135 A CN104728135 A CN 104728135A
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- China
- Prior art keywords
- arc
- shaped door
- air duct
- rear guide
- guide vane
- 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.)
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Classifications
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- 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
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- 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
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
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- 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
- F04D29/263—Rotors specially for elastic fluids mounting fan or blower rotors on shafts
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- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/403—Casings; Connections of working fluid 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a maintainable centrifugal axial-flow fan which comprises an air duct, an arc-shaped door, a turnover mechanism, a centrifugal impeller, rear guide blades and a motor, wherein the air duct is in the shape of a cylinder and provided with a cavity, and an opening is formed in the side wall of the air duct; the arc-shaped door is arranged on the opening portion of the side wall of the air duct, and the size of the arc-shaped door is matched with that of the air duct; the turnover mechanism can make one vertical line of one side of the arc-shaped door conduct turnover through taking one side edge which is close to and parallel to the vertical direction of the arc-shaped door, and the centrifugal impeller, the rear guide blades and the motor are arranged on the inner wall of the arc-shaped door in a concentric mode form top to bottom; when the arc-shaped door is closed, a cylindrical structure with the complete side wall can be formed by the air duct, and the whole structure is compact; when the arc-shaped door is closed, the centrifugal impeller, the rear guide blades and the motor are all located at the outer side of the opening of the side wall of the air duct, the overhauling is convenient, the maintenance cost is greatly reduced, and the maintenance efficiency is improved.
Description
Technical field
The present invention relates to blower fan field, especially, relate to a kind of centrifugal-axial flow ventilator.
Background technique
Centrifugal-axial flow ventilator can be widely used in the fields such as national defence, track traffic, chemical industry, as cooled all kinds of centrifugal compressor, ship power system and traction electric machine etc., plays an important role in the normal operation of various kinds of equipment.
At present, centrifugal-axial flow ventilator is limited to the requirement of geometric space, is placed in air duct by impeller and motor, and structure is comparatively compact; For improving blower pressure and flow, in blower fan, often increase air inlet duct and rear guide vane, to meet the demand of cooling equipment to air quantity and blast.This structural requirement rear guide vane and air duct are welded, and impeller is placed in the middle, and pilot blade is placed in top, and motor is placed on the mountion plate of rear guide vane.
There is the problem of maintenance inconvenience and maintenance difficult in the centrifugal-axial flow ventilator structure design of existing compact structure, specific as follows: (1) impeller and motor are placed in air duct inside, when there is fault in motor, can only be outside at air duct, rely on subjective feeling and the working experience of individual, judge whether motor exists fault, detecting instrument can not be adopted to carry out science judgment; (2) problem once ventilator breaks down, needs to adopt driving, is raised by whole ventilator, be transported to Maintenance Bases from former mounting platform position, impeller and motor before air duct dismounting, then overhauls trouble location.In whole maintenance process, dismantlement work amount is huge, even if small fan trouble, also needs to be carried out by complete machine lifting, dismantling.Ratio between actual engineering time and auxiliary maintaining time is extremely unbecoming, wastes a large amount of maintenance costs.
At present, the method solving centrifugal-axial flow ventilator structure maintenance difficult improves the reliability in its life-span, specifically has: (1) adopts sealing configuration to electric machine structure, improves the security level of motor; (2) select the bearing of large model or the higher bearing of quality, improve the working life of motor bearings.In fact, the life-span of each engineering goods, especially bearing life, meet normal distribution.When ventilator rate of fault is reduced to a certain degree, its technical costs is quite high.On the one hand, improve technological level and design level simply, to reduce the rate of fault of product, the large cost of difficulty is too high, and inadvisable; On the other hand, the erroneous judgement drawback that the subjective experience of individual and individual subjective feeling bring is depended in the judgement that this structure still can not solve ventilator fault.
Summary of the invention
The object of the invention is to provide simple and compact for structure, dismounting is simple and maintenance has high maintainable centrifugal-axial flow ventilator easily, and concrete technological scheme is as follows:
A kind of maintainability centrifugal-axial flow ventilator, comprise vertically arrange and the air duct of the cylindrical shape of its sidewall upper shed, be arranged on described opening and the arc-shaped door matched with its size, can make arc-shaped door with close on and the vertical curve being parallel to a side of arc-shaped door vertical direction for axle overturn thus realize switching mechanism that arc-shaped door carries out switch motion at described opening and be arranged on described arc-shaped door inwall on and the centrifugal impeller, rear guide vane and the motor that arrange of concentric from top to bottom; After described arc-shaped door is opened, described centrifugal impeller, rear guide vane and motor are all positioned at the outside of the opening on described air duct sidewall.
In order to reach better technique effect, described rear guide vane comprises cylinder and upper end edge circumferencial direction and is fixed in rear guide vane blade on the external peripheral surface of cylinder; Described centrifugal impeller, rear guide vane and motor are arranged on described arc-shaped door by described rear guide vane blade, are provided with for supporting described rear guide vane blade and having the support ring of the breach matched with described motor size in the cavity of described air duct.
More preferably, described rear guide vane blade is fixed on described arc-shaped door by welding manner.
More preferably, described motor comprises motor shaft and motor body, and described centrifugal impeller is installed on the upper end of described motor shaft, and the cylinder of described rear guide vane is fixed on described motor shaft, and described motor body is arranged on the cylinder of described rear guide vane by bolt.
More preferably, the dual-side vertically going up the breach of described support ring lays respectively at the dual-side place of the opening on described air duct sidewall.
More preferably, on the dual-side of described arc-shaped door vertical direction, the side be connected with switching mechanism is the first side, and another side is the second side, and described second side is connected with the opening on described air duct sidewall by plywood assembly.
More preferably, described switching mechanism comprises the trip shaft vertically arranged and the axle sleeve matched with described trip shaft, and the length of described trip shaft is identical with the height of described arc-shaped door.
More preferably, described plywood assembly comprises the first plywood single-piece of the second side being arranged on described arc-shaped door and is arranged on the opening of described air duct and the second plywood single-piece matched with described first plywood single-piece, and described first plywood single-piece and described second plywood single-piece are bolted.
More preferably, the central angle of described arc-shaped door is 45 degree ~ 180 degree, is preferably 180 degree.
More preferably, the wall thickness of described arc-shaped door is greater than the wall thickness of described air duct and both thickness differences are 3 ~ 5mm, and the wall thickness of described arc-shaped door can be 5 ~ 10mm.
Apply technological scheme of the present invention, there is following beneficial effect:
(1) maintainable centrifugal-axial flow ventilator of the present invention comprises vertically setting and the air duct of the cylindrical shape of its sidewall opening, at the arc-shaped door that opening is arranged, make arc-shaped door one side can along close on and the vertical curve being parallel to a side of arc-shaped door vertical direction be axle upset switching mechanism and from top to bottom concentric be installed on the centrifugal impeller on arc-shaped door inwall, rear guide vane and motor, the opening of arc-shaped door and air duct matches, shutting arc-shaped door can make air duct form complete columnar structured of sidewall, open arc-shaped door, centrifugal impeller on arc-shaped door inwall, rear guide vane and motor are all positioned at the outside of air duct opening, can directly check ventilator, dismounting and maintenance, overcome and rely on individual subjective feeling and working experience to judge the erroneous judgement defect that electrical fault is brought, need when solving machinery check and repair to leave ventilator under order mounting platform position simultaneously, the difficulty that impeller and motor bring is dismantled from air duct, break away from and perplexed the hard nut to crack that locomotive industry centrifugal-axial flow ventilator checks and maintenance is difficult for a long time always, improve science and the accuracy of centrifugal-axial flow Fault Diagnosis for Ventilators, maintenance cost and maintenance efficiency are greatly saved.
(2) in the present invention, centrifugal impeller, rear guide vane and motor are arranged on described arc-shaped door by rear guide vane blade, compact structure; The tool support ring jaggy of the not soldered rear guide vane blade of support is provided with in the cavity of air duct, solve because centrifugal impeller, rear guide vane and motor three form the problem of axle system easy run-off the straight because part is unsettled, play the function of axially support and axially locating, the work that centrifugal-axial flow ventilator of the present invention is stable can be ensured.
(3) centrifugal impeller is arranged on the motor shaft front end of motor, the cylinder of rear guide vane is fixed on the motor shaft of motor, the motor body of motor is arranged on the cylinder of rear guide vane by bolt, centrifugal impeller, rear guide vane and motor three form an axle system, by the rear guide vane blade in neutral position is welded on arc-shaped door, make whole axle system firm be arranged on arc-shaped door, such a construction ensures the feature of cylindrical shape compact housing construction advantage and longitudinal air inlet/outlet.
(4) dual-side of the breach in the present invention vertically on described support ring lays respectively on two vertical sides of the opening of air duct sidewall, to ensure that arc-shaped door can smooth opening.
(5) in the present invention, arc-shaped door comprises vertically the first side and the second side, and the first side is connected with the opening of air duct with plywood assembly respectively by switching mechanism with the second side; The axle sleeve that switching mechanism comprises trip shaft and matches with trip shaft, the length of trip shaft is identical with the height of the first side of the opening with air duct, is connected by arc-shaped door by switching mechanism with air duct, facilitates arc-shaped door opening and closing; Plywood assembly is bolted, and when arc-shaped door opened by needs, the bolt of the plywood assembly that removably connects, when arc-shaped door shut by needs, be fastenedly connected plywood assembly bolt, this design operation is simple and convenient.
(6) in the present invention, the central angle of described arc-shaped door is 45 degree ~ 180 degree in the horizontal plane, and be convenient to impeller and be placed in air duct outside, structure is attractive in appearance, reasonable in design; The wall thickness of described arc-shaped door is greater than the wall thickness 3 ~ 5mm of described air duct, guarantees that arc-shaped door has the intensity that can carry centrifugal impeller, rear guide vane and motor, ensures the Security in maintenance process.
Except object described above, feature and advantage, the present invention also has other object, feature and advantage.Below with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the maintainable centrifugal-axial flow ventilator of the preferred embodiment of the present invention 1;
Fig. 2 is the structural representation that Fig. 1 sees from the bottom up;
1-air duct, 11-air inlet duct, 12-support ring, 13-second plywood single-piece, 2-arc-shaped door, 21-first side, 22-second side, 23-first plywood single-piece, 24-trip shaft, 25-axle sleeve, 3-centrifugal impeller, 4-rear guide vane, 41-rear guide vane blade, 42-cylinder, 5-motor, 51-motor shaft.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the multitude of different ways that the present invention can limit according to claim and cover is implemented.
Embodiment 1:
A kind of maintainable centrifugal-axial flow ventilator, refers to Fig. 1 and Fig. 2, specifically comprises both ends open and has the air duct of cavity, arc-shaped door, switching mechanism, centrifugal impeller, rear guide vane and motor.Air duct can also can vertically be arranged by cross setting, in the present embodiment, is described vertically to arrange.
The upper end of described air duct 1 is provided with the air inlet duct 11 corresponding with described centrifugal impeller 3, preferably: the cavity diameter of described air inlet duct 11 is identical with the diameter of centrifugal impeller 3.
Vertically go up described air duct 1 sidewall and be provided with opening, this opening is preferably positioned at the middle part of described air duct 1, described arc-shaped door 2 is arranged on the opening of described air duct 1 sidewall and matches with the size of arc-shaped door 2, the side of arc-shaped door 2 can to close on and the vertical curve being parallel to a side of arc-shaped door 2 vertical direction carries out overturning for axle thus realizes the Push And Release of arc-shaped door 2, and on the inwall of arc-shaped door 2, concentric has installed centrifugal impeller 3, rear guide vane 4 and motor 5 from top to bottom.
The size of the size of described arc-shaped door 2 and the opening of air duct 1 sidewall matches, and is specially: when centrifugal-axial flow ventilator works, shut arc-shaped door 2, air duct 1 formed one have complete side walls columnar structured; When needs are safeguarded centrifugal-axial flow ventilator, open arc-shaped door 2, the centrifugal impeller 3 of the installation on arc-shaped door 2 inwall, rear guide vane 4 and motor 5 are positioned at the outside of described air duct 1 sidewall upper shed place.This structural design has the following advantages: conveniently carry out checking, dismantle and overhauling, overcome and rely on individual subjective feeling and working experience to judge the erroneous judgement defect that electrical fault is brought, need ventilator to be left under order mounting platform position simultaneously when solving machinery check and repair, from air duct, dismantle impeller, difficulty that motor brings, break away from and perplexed the hard nut to crack that locomotive industry centrifugal-axial flow ventilator checks and maintenance is difficult for a long time always, improve science and the accuracy of centrifugal-axial flow Fault Diagnosis for Ventilators, greatly save maintenance cost and improve maintenance efficiency.
The central angle of described arc-shaped door 2 is 45 ~ 180 degree in the horizontal plane, in the design of centrifugal-axial flow ventilator, the radian of arc-shaped door is relevant with air duct diameter with impeller diameter, and be placed in air duct outside for the ease of impeller and motor, the central angle of described arc-shaped door is preferably 180 degree.
The described arc-shaped door 2 of axial direction (vertical direction) along described air duct 1 comprises the first side 21 and the second side 22, described first side 21 is connected by switching mechanism with the opening of described air duct 1, and described second side 22 is connected by plywood assembly with the opening of described air duct 1; Wherein switching mechanism comprises the trip shaft 24 arranged along the axial direction along described air duct 1 and the axle sleeve 25 matched with described trip shaft 24, and the length of described trip shaft 24 is identical with the height of described arc-shaped door 2; Wherein plywood assembly comprises the first plywood single-piece 23 and the second plywood single-piece 13 matched be bolted, described first plywood single-piece 23 is all identical with the height of described arc-shaped door 2 along the length of air duct 1 axial direction with the second plywood single-piece 13, described first plywood single-piece 23 is connected with the second side 22 of described arc-shaped door 2 and is positioned on the parallel second outward extending extended surface in end, side 22, and described second plywood single-piece 13 is connected with the side of described air duct 1 opening and is positioned on the outward extending extended surface of its side parallel.When arc-shaped door 2 opened by needs, the bolt of the plywood assembly that removably connects, the quantity of bolt is generally 8, when arc-shaped door shut by needs, is fastenedly connected plywood assembly bolt.
Described rear guide vane 4 comprises cylinder 42 and upper end edge circumferencial direction and is fixed in rear guide vane blade 41 on the external peripheral surface of cylinder 42, the centrifugal impeller 3 that arc-shaped door 2 inwall is arranged, rear guide vane 4 and motor 5 are arranged on described arc-shaped door 2 by described rear guide vane blade 41, in production process, concrete mounting type is as follows: on the door body of described arc-shaped door 2, offer one group make through hole that is that part rear guide vane blade 41 lower end is inserted and that match with rear guide vane blade 41 insertion portion, the lower end of rear guide vane blade 41 is inserted in described through hole, then by welding manner, rear guide vane blade is fixed on described arc-shaped door 2.
When rear guide vane blade 41 is welded on arc-shaped door 2, be welded on arc-shaped door owing to only having part rear guide vane blade 41, belong to local pressure, easily make centrifugal impeller 3 run-off the straight, so be provided with the support ring 12 for supporting rear guide vane 4 at air duct 1 cavity inside, support ring 12 is welded on air duct 1 inwall, to strengthen the axial carrying capacity of rear guide vane 12 and to play axially locating effect.Described support ring 12 has breach, the dual-side of described support ring 12 gap position lays respectively on two vertical sides of the opening of described air duct 1, with ensure arc-shaped door 2 can smooth opening (specifically: when arc-shaped door 2 is opened, motor 5 can move to the outside of air duct 1 through the breach of support ring 12; When arc-shaped door 2 is closed, motor 5 can move in the cavity of air duct from the breach of the outside of air duct 1 through support ring 12).
For the sidewall being installed on arc-shaped door 2 ensureing that centrifugal impeller 3, rear guide vane 4 and motor 5 can be firm, and ensure the work of three's energy long-time stable, described arc-shaped door 2 need have good intensity, preferably adopt steel or aluminium material matter, its wall thickness is greater than the wall thickness 3 ~ 5mm of air duct 1, thickness can be 5 ~ 10mm, is preferably 10mm.
Centrifugal impeller 3, rear guide vane 4 and motor 5 three form axle system by the motor shaft 51 of motor, concrete Placement is as follows: centrifugal impeller 3 is installed on the front end of the motor shaft 51 of motor 5, be connected with motor shaft 51 by key, the cylinder 42 of rear guide vane 4 is fixed on the motor shaft 51 of motor 5, the motor body of motor 5 is then arranged on the cylinder 42 of rear guide vane 4 by bolt, make firm being arranged on arc-shaped door 2 of whole axle system, such a construction ensures the feature of cylindrical shape compact housing construction advantage and longitudinal air inlet/outlet.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a maintainable centrifugal-axial flow ventilator, is characterized in that: comprise vertically arrange and the air duct of the cylindrical shape of its sidewall upper shed, be arranged on described opening and the arc-shaped door matched with its size, can make arc-shaped door with close on and the vertical curve being parallel to a side of arc-shaped door vertical direction for axle overturn thus realize switching mechanism that arc-shaped door carries out switch motion at described opening and be arranged on described arc-shaped door inwall on and the centrifugal impeller, rear guide vane and the motor that arrange of concentric from top to bottom; After described arc-shaped door is opened, described centrifugal impeller, rear guide vane and motor are all positioned at the outside of the opening on described air duct sidewall.
2. maintainable centrifugal-axial flow ventilator according to claim 1, is characterized in that: described rear guide vane comprises cylinder and upper end edge circumferencial direction and is fixed in rear guide vane blade on the external peripheral surface of cylinder; Described centrifugal impeller, rear guide vane and motor are arranged on described arc-shaped door by described rear guide vane blade, are provided with for supporting described rear guide vane blade and having the support ring of the breach matched with described motor size in the cavity of described air duct.
3. maintainable centrifugal-axial flow ventilator according to claim 2, is characterized in that: described rear guide vane blade is fixed on described arc-shaped door by welding manner.
4. maintainable centrifugal-axial flow ventilator according to claim 2, it is characterized in that: described motor comprises motor shaft and motor body, described centrifugal impeller is installed on the upper end of described motor shaft, the cylinder of described rear guide vane is fixed on described motor shaft, and described motor body is arranged on the cylinder of described rear guide vane by bolt.
5. maintainable centrifugal-axial flow ventilator according to claim 2, is characterized in that: the dual-side vertically going up the breach of described support ring lays respectively at the dual-side place of the opening on described air duct sidewall.
6. the maintainable centrifugal-axial flow ventilator according to any one of Claims 1 to 5, it is characterized in that: on the dual-side of described arc-shaped door vertical direction, the side be connected with switching mechanism is the first side, another side is the second side, and described second side is connected with the opening on described air duct sidewall by plywood assembly.
7. maintainable centrifugal-axial flow ventilator according to claim 6, it is characterized in that: described switching mechanism comprises the trip shaft vertically arranged and the axle sleeve matched with described trip shaft, the length of described trip shaft is identical with the height of described arc-shaped door.
8. maintainable centrifugal-axial flow ventilator according to claim 6, it is characterized in that: described plywood assembly comprises the first plywood single-piece of the second side being arranged on described arc-shaped door and is arranged on the opening of described air duct and the second plywood single-piece matched with described first plywood single-piece, and described first plywood single-piece and described second plywood single-piece are bolted.
9. maintainable centrifugal-axial flow ventilator according to claim 1, is characterized in that: the central angle of described arc-shaped door is 45 degree ~ 180 degree.
10. maintainable centrifugal-axial flow ventilator according to claim 1, is characterized in that: the wall thickness of described arc-shaped door is greater than the wall thickness of described air duct and both thickness differences are 3 ~ 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510111978.XA CN104728135B (en) | 2015-03-13 | 2015-03-13 | Maintainable centrifugal axial-flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510111978.XA CN104728135B (en) | 2015-03-13 | 2015-03-13 | Maintainable centrifugal axial-flow fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104728135A true CN104728135A (en) | 2015-06-24 |
| CN104728135B CN104728135B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510111978.XA Active CN104728135B (en) | 2015-03-13 | 2015-03-13 | Maintainable centrifugal axial-flow fan |
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| CN (1) | CN104728135B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113374710A (en) * | 2021-07-12 | 2021-09-10 | 杨玉亭 | Axial fan convenient to maintenance |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201991802U (en) * | 2011-01-17 | 2011-09-28 | 株洲联诚集团有限责任公司 | Non-volute centrifugal fan for electric locomotive |
| CN203225628U (en) * | 2013-04-10 | 2013-10-02 | 株洲联诚集团有限责任公司 | Drive motor for traction fan of high-power locomotive |
| CN204493237U (en) * | 2015-03-13 | 2015-07-22 | 中南大学 | A kind of maintainable centrifugal-axial flow ventilator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9267698B2 (en) * | 2014-02-28 | 2016-02-23 | Techtronic Power Tools Technology Limited | Mister fan |
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2015
- 2015-03-13 CN CN201510111978.XA patent/CN104728135B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201991802U (en) * | 2011-01-17 | 2011-09-28 | 株洲联诚集团有限责任公司 | Non-volute centrifugal fan for electric locomotive |
| CN203225628U (en) * | 2013-04-10 | 2013-10-02 | 株洲联诚集团有限责任公司 | Drive motor for traction fan of high-power locomotive |
| CN204493237U (en) * | 2015-03-13 | 2015-07-22 | 中南大学 | A kind of maintainable centrifugal-axial flow ventilator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113374710A (en) * | 2021-07-12 | 2021-09-10 | 杨玉亭 | Axial fan convenient to maintenance |
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| CN104728135B (en) | 2017-01-11 |
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