CN104728135B - Maintainable centrifugal axial-flow fan - Google Patents
Maintainable centrifugal axial-flow fan Download PDFInfo
- Publication number
- CN104728135B CN104728135B CN201510111978.XA CN201510111978A CN104728135B CN 104728135 B CN104728135 B CN 104728135B CN 201510111978 A CN201510111978 A CN 201510111978A CN 104728135 B CN104728135 B CN 104728135B
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- CN
- 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
-
- 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
-
- 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
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 ventilation blower.
Background technology
Centrifugal-axial flow ventilation blower can be widely applied to the fields such as national defence, track traffic, chemical industry, as cool down all kinds of centrifugal compressors,
Ship power system and traction electric machine etc., various kinds of equipment properly functioning in play an important role.
At present, centrifugal-axial flow ventilation blower is limited to the requirement of geometric space, impeller and motor is placed in air duct, and structure is the compactest；
For improving blower pressure and flow, in blower fan, often increase intake air way and rear guide vane, to meet cooling device to air quantity and blast
Demand.This structural requirement rear guide vane is welded with air duct, and impeller is placed in the middle, and pilot blade is placed in top, and motor is led after being placed in
On the mounting platform of leaf.
There is maintenance inconvenience and the problem of maintenance difficult in the centrifugal-axial flow ventilator structure design of existing compact conformation, specific as follows:
(1) impeller and motor are placed in inside air duct, when there is fault in motor, can only be outside air duct, and by the subjective feeling of individual
And working experience, it is judged that whether motor exists fault, it is impossible to use detecting instrument to carry out science judgment；(2) once ventilation blower
Break down problem, needs to use driving, is raised from former erecting bed position by whole ventilation blower, transport to Maintenance Bases, from
The front impeller of dismounting and motor on air duct, then trouble location is overhauled.In whole maintenance process, dismantlement work amount is huge,
Even if small fan trouble, it is also desirable to carry out complete machine lifting, dismantling.Between actual maintenance time and auxiliary maintaining time
Ratio the most unbecoming, waste substantial amounts of maintenance cost.
At present, the method solving centrifugal-axial flow ventilator structure maintenance difficult is to improve the reliability in its life-span, specifically has: (1)
Electric machine structure is used and seals structure, improve the degree of protection of motor；(2) bearing or the higher bearing of quality of big model are selected,
Improve the service life of motor bearings.It practice, the life-span of each engineering goods, especially bearing life, meet normal state and divide
Cloth.When ventilation blower fault rate is reduced to a certain degree, its technical costs is at a relatively high.On the one hand, improve technological level simply and set
Meter level, to reduce the fault rate of product, the big cost of difficulty is the highest and inadvisable；On the other hand, this structure still can not
The erroneous judgement drawback that the subjective experience of individual and the subjective feeling of individuality are brought is depended in the judgement solving ventilation blower fault.
Summary of the invention
Present invention aim at providing simple and compact for structure, dismounting is simple and maintenance has high maintainable centrifugal shaft easily
Flow blow, concrete technical scheme is as follows:
A kind of maintainability centrifugal-axial flow ventilation blower, including being vertically arranged and the cylindric air duct of its sidewall upper shed, setting
Described opening part and match with its size arc-shaped door, arc-shaped door can be made to close on and to be parallel to the one of arc-shaped door vertical direction
One vertical curve of bar side be axle upset thus realize arc-shaped door described opening part carry out switch motion switching mechanism and
It is arranged on the inwall of described arc-shaped door and centrifugal impeller, rear guide vane and the motor of concentric setting from top to bottom；When described arc
After door is opened, described centrifugal impeller, rear guide vane and motor are respectively positioned on the outside of the opening on described air duct sidewall.
In order to reach superior technique effect, described rear guide vane includes that cylinder and upper end edge circumferencial direction are fixed in the cylindrical of cylinder
Rear guide vane blade in perimeter surface；Described centrifugal impeller, rear guide vane and motor are arranged on described arc by described rear guide vane blade
On shape door, it is provided with in the cavity of described air duct for lacking of supporting that described rear guide vane blade and having matches with described motor size
The support ring of mouth.
It is further preferable that described rear guide vane blade is fixed on described arc-shaped door by welding manner.
It is further preferable that described motor includes that motor shaft and motor body, described centrifugal impeller are 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.
It is further preferable that the dual-side vertically going up the breach of described support ring lays respectively at the opening on described air duct sidewall
Dual-side at.
It is further preferable that on the dual-side of described arc-shaped door vertical direction, the side being connected with switching mechanism is the first side, separately
One side is the second side, and described second side is connected with the opening on described air duct sidewall by plywood assembly.
It is further preferable that described switching mechanism includes the trip shaft vertically arranged and the axle matched with described trip shaft
Set, the length of described trip shaft is identical with the height of described arc-shaped door.
It is further preferable that described plywood assembly includes the first plywood single-piece being arranged on the second side of described arc-shaped door and is arranged on
The opening part of described air duct and the second plywood single-piece matched with described first plywood single-piece, described first plywood single-piece and described
Second plywood single-piece is bolted.
It is further preferable that the central angle of described arc-shaped door is 45 degree～180 degree, preferably 180 degree.
It is further preferable that the wall thickness of described arc-shaped door is 3～5mm more than wall thickness and both thickness differences of described air duct, described arc
The wall thickness of shape door can be 5～10mm.
Application technical scheme, has the advantages that
(1) the maintainable centrifugal-axial flow ventilation blower of the present invention include being vertically arranged and the cylindric air duct of its sidewall opening,
Arc-shaped door that opening part is arranged, make arc-shaped door one side can be along of a side closing on and being parallel to arc-shaped door vertical direction
Vertical curve 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
The opening of motor, arc-shaped door and air duct matches, and shuts arc-shaped door and air duct can be made to form complete columnar structured of sidewall,
Opening arc-shaped door, centrifugal impeller, rear guide vane and the motor on arc-shaped door inwall is respectively positioned on the outside of air duct opening, can be directly to logical
Blower fan carries out checking, dismantle and overhauling, and overcomes the individual subjective feeling of dependence and working experience judges the erroneous judgement that electrical fault is brought
Defect, needs to leave ventilation blower under order erecting bed position simultaneously, dismantles impeller from air duct and motor is brought when solving machinery check and repair
Difficulty, broken away from the most always puzzlement locomotive industry centrifugal-axial flow ventilation blower check and maintenance difficulty hard nut to crack,
Improve science and the accuracy of centrifugal-axial flow Fault Diagnosis for Ventilators, be greatly saved maintenance cost and maintenance efficiency.
(2) in the present invention, centrifugal impeller, rear guide vane and motor are arranged on described arc-shaped door by rear guide vane blade, and structure is tight
Gather；In the cavity of air duct, it is provided with the tool support ring jaggy supporting the rear guide vane blade not being soldered, solves because of centrifugal leaf
Wheel, rear guide vane and motor three constitute the problem that axle system is susceptible to tilt because part is unsettled, play and axially support and the most fixed
The function of position, it is ensured that the work that the centrifugal-axial flow ventilation blower of the present invention is stable.
(3) centrifugal impeller is arranged on the motor shaft front end of motor, and the cylinder of rear guide vane is fixed on the motor shaft of motor, motor
Motor body is arranged on the cylinder of rear guide vane by bolt, and centrifugal impeller, rear guide vane and motor three constitute an axle system, pass through
Being welded on arc-shaped door by the rear guide vane blade in centre position, make whole axle system be stably mounted on arc-shaped door, this structure is protected
Cylindrical shape compact housing construction advantage and the feature of longitudinal air inlet/outlet are demonstrate,proved.
(4) in the present invention dual-side of the breach in the most described support ring lay respectively at the opening of air duct sidewall two erect
In straight sided, to ensure that arc-shaped door can be with smooth opening.
(5) in the present invention, arc-shaped door includes that vertically the first side and the second side, the first side and the second side pass through tipper respectively
Structure and plywood assembly are connected with the opening of air duct；Switching mechanism includes trip shaft and the axle sleeve matched with trip shaft, trip shaft
Length with and the height of the first side of opening of air duct identical, by switching mechanism, arc-shaped door is connected 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 needing
During arc-shaped door to be shut, being fastenedly connected plywood assembly bolt, this design operation is simple and convenient.
(6) in the present invention, the central angle of the most described arc-shaped door is 45 degree～180 degree, it is simple to impeller is placed in outside air duct,
Structure is attractive in appearance, reasonable in design；The wall thickness of described arc-shaped door is more than the wall thickness 3～5mm of described air duct, it is ensured that arc-shaped door has and can hold
Carry centrifugal impeller, rear guide vane and the intensity of motor, it is ensured that the safety in maintenance process.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages.Below
Will be with reference to figure, the present invention is further detailed explanation.
Accompanying drawing explanation
The accompanying drawing of the part constituting the application is used for providing a further understanding of the present invention, the illustrative examples of the present invention and
Its explanation is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the maintainable centrifugal-axial flow ventilation blower 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-intake air way, 12-support ring, 13-the second plywood single-piece, 2-arc-shaped door, 21-the first side, 22-the second side,
23-the 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.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are described in detail, but the present invention can limit according to claim and cover
The multitude of different ways of lid is implemented.
Embodiment 1:
A kind of maintainable centrifugal-axial flow ventilation blower, refers to Fig. 1 and Fig. 2, specifically includes both ends open and have the air duct of cavity, arc
Shape door, switching mechanism, centrifugal impeller, rear guide vane and motor.Air duct can also be vertically arranged with horizontally set, in this enforcement
In example, illustrate to be vertically arranged.
The upper end of described air duct 1 is provided with the intake air way 11 corresponding with described centrifugal impeller 3, preferably: described intake air way 11
Cavity diameter is identical with the diameter of centrifugal impeller 3.
Vertically going up described air duct 1 sidewall and be provided with opening, this opening is preferably located at the middle part of described air duct 1, described arc
Shape door 2 is arranged on the opening part of described air duct 1 sidewall and matches with the size of arc-shaped door 2, and the side of arc-shaped door 2 can be with
One vertical curve of the side closed on and be parallel to arc-shaped door 2 vertical direction is that axle carries out overturning thus realizes arc-shaped door 2
Push And Release, on the inwall of arc-shaped door 2, concentric is mounted with centrifugal impeller 3, rear guide vane 4 and motor 5 from top to bottom.
The size of described arc-shaped door 2 matches with the size of the opening of air duct 1 sidewall, particularly as follows: when centrifugal-axial flow ventilation blower work
When making, shut arc-shaped door 2, air duct 1 formed one have complete side walls columnar structured；When needs are to centrifugal-axial flow ventilation blower
When safeguarding, opening 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 institute
State the outside at air duct 1 sidewall upper shed.The design of this structure has the advantage that and conveniently carries out checking, dismantle and overhauling, gram
Take the individual subjective feeling of dependence and working experience has judged the erroneous judgement defect that electrical fault is brought, needed when solving machinery check and repair simultaneously
Ventilation blower is left under order erecting bed position, from air duct, dismantles the difficulty that impeller, motor are brought, break away from and be stranded the most always
Disturb locomotive industry centrifugal-axial flow ventilation blower to check and the hard nut to crack of maintenance difficulty, improve centrifugal-axial flow Fault Diagnosis for Ventilators
Science and accuracy, be greatly saved maintenance cost and improve maintenance efficiency.
The central angle of the most described arc-shaped door 2 is 45～180 degree, in the design of centrifugal-axial flow ventilation blower, arc-shaped door
Radian is relevant with air duct diameter with impeller diameter, is placed in outside air duct for the ease of impeller and motor, the central angle of described arc-shaped door
Preferably 180 degree.
Axis direction (vertical direction) described arc-shaped door 2 along described air duct 1 includes the first side 21 and the second side 22, described
The opening of side 21 and described air duct 1 is connected by switching mechanism, and the opening of described second side 22 and described air duct 1 is by closing
Board component connects；Wherein switching mechanism include along along described air duct 1 axis direction arrange trip shaft 24 and with described upset
The axle sleeve 25 that axle 24 matches, the length of described trip shaft 24 is identical with the height of described arc-shaped door 2；Wherein plywood assembly bag
Include the first plywood single-piece 23 and the second plywood single-piece 13 matched being bolted, described first plywood single-piece 23 and
Two plywood single-pieces 13 are all identical with the height of described arc-shaped door 2 along the length of air duct 1 axis direction, described first plywood single-piece 23
It 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, described second
Plywood single-piece 13 is connected with the side of described air duct 1 opening and is positioned on the parallel outward extending extended surface of its side.When needs are beaten
When opening arc-shaped door 2, the bolt of the plywood assembly that removably connects, the quantity of bolt is generally 8, when arc-shaped door shut by needs,
It is fastenedly connected plywood assembly bolt.
Described rear guide vane 4 includes that cylinder 42 and upper end edge circumferencial direction are fixed in the rear guide vane on the external peripheral surface of cylinder 42
Blade 41, centrifugal impeller 3, rear guide vane 4 and motor 5 that arc-shaped door 2 inwall is arranged are by described rear guide vane blade 41
Being arranged on described arc-shaped door 2, in production process, concrete mounting means is as follows: offer one in the door body of described arc-shaped door 2
Group makes through hole that is that part rear guide vane blade 41 lower end is inserted and that match, rear guide vane blade with rear guide vane blade 41 insertion portion
The lower end of 41 is inserted in described through hole, is then fixed on described arc-shaped door 2 by rear guide vane blade by welding manner.
When rear guide vane blade 41 is welded on arc-shaped door 2, owing to only part rear guide vane blade 41 is welded on arc-shaped door,
Belong to local pressure, easily make centrifugal impeller 3 run-off the straight, so being provided with for supporting rear guide vane 4 at air duct 1 cavity inside
Support ring 12, 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
Positioning action.Described support ring 12 has breach, and the dual-side of described support ring 12 gap position lays respectively at described air duct 1
Opening two vertical sides on, to ensure that arc-shaped door 2 can be with smooth opening (specifically: when arc-shaped door 2 is opened, motor 5
The outside to air duct 1 can be moved through the breach of support ring 12；When arc-shaped door 2 is closed, motor 5 can be from the outside of air duct 1
Breach through support ring 12 moves to the cavity of air duct).
For ensureing the sidewall being installed on arc-shaped door 2 that centrifugal impeller 3, rear guide vane 4 and motor 5 can consolidate, and ensure that three can grow
The work that time is stable, described arc-shaped door 2 need to have preferable intensity, and preferably with steel or aluminium material matter, its wall thickness wants big
In the wall thickness 3～5mm of air duct 1, thickness can be 5～10mm, preferably 10mm.
Centrifugal impeller 3, rear guide vane 4 and motor 5 three constitute axle system by the motor shaft 51 of motor, and concrete connected mode is such as
Under: centrifugal impeller 3 is installed on the front end of the motor shaft 51 of motor 5, is connected with motor shaft 51 by key, the circle of rear guide vane 4
Cylinder 42 is fixed on the motor shaft 51 of motor 5, and the motor body of motor 5 is then arranged on the cylinder 42 of rear guide vane 4 by bolt
On, make whole axle system be stably mounted on arc-shaped door 2, such a construction ensures cylindrical shape compact housing construction advantage and longitudinal direction
The feature of air inlet/outlet.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for those skilled in the art
For, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of being made, etc.
With replacement, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a maintainable centrifugal-axial flow ventilation blower, it is characterised in that: include being vertically arranged and the cylindrical shape of its sidewall upper shed
Air duct, be arranged on described opening part and the arc-shaped door matched with its size, arc-shaped door can be made to close on and to be parallel to arc-shaped door
One vertical curve of one side of vertical direction is axle upset thus realizes arc-shaped door and carry out turning over of switch motion at described opening part
Rotation mechanism and be arranged on the inwall of described arc-shaped door and from top to bottom concentric arrange centrifugal impeller, rear guide vane and motor；
After described arc-shaped door is opened, described centrifugal impeller, rear guide vane and motor are respectively positioned on the outside of the opening on described air duct sidewall.
Maintainable centrifugal-axial flow ventilation blower the most according to claim 1, it is characterised in that: described rear guide vane includes cylinder
And the rear guide vane blade that upper end edge circumferencial direction is fixed on the external peripheral surface of cylinder；Described centrifugal impeller, rear guide vane and
Motor is arranged on described arc-shaped door by described rear guide vane blade, is provided with for supporting described rear guide vane in the cavity of described air duct
Blade and there is the support ring of the breach matched with described motor size.
Maintainable centrifugal-axial flow ventilation blower the most according to claim 2, it is characterised in that: described rear guide vane blade passes through
Welding manner is fixed on described arc-shaped door.
Maintainable centrifugal-axial flow ventilation blower the most according to claim 2, it is characterised in that: described motor includes motor shaft
And motor body, described centrifugal impeller is installed on the upper end of described motor shaft, and the cylinder of described rear guide vane is fixed in described motor shaft
On, described motor body is arranged on the cylinder of described rear guide vane by bolt.
Maintainable centrifugal-axial flow ventilation blower the most according to claim 2, it is characterised in that: vertically go up described
The dual-side of the breach of pushing out ring lays respectively at the dual-side of the opening on described air duct sidewall.
6. according to the maintainable centrifugal-axial flow ventilation blower described in any one of Claims 1 to 5, it is characterised in that: described arc-shaped door
On the dual-side of vertical direction, the side being connected with switching mechanism is the first side, and another side is the second side, described second side
It is connected with the opening on described air duct sidewall by plywood assembly.
Maintainable centrifugal-axial flow ventilation blower the most according to claim 6, it is characterised in that: described switching mechanism includes edge
Trip shaft that vertical direction is arranged and the axle sleeve that matches with described trip shaft, the length of described trip shaft and described arc-shaped door
The most identical.
Maintainable centrifugal-axial flow ventilation blower the most according to claim 6, it is characterised in that: described plywood assembly includes setting
Put the first plywood single-piece in the second side of described arc-shaped door and be arranged on described air duct opening part and with described first plywood list
The second plywood single-piece that part matches, described first plywood single-piece and described second plywood single-piece are bolted.
Maintainable centrifugal-axial flow ventilation blower the most according to claim 1, it is characterised in that: the central angle of described arc-shaped door
It it is 45 degree～180 degree.
Maintainable centrifugal-axial flow ventilation blower the most according to claim 1, it is characterised in that: the wall thickness of described arc-shaped door
It is 3～5mm more than wall thickness and both thickness differences of described air duct.
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 CN104728135A (en) | 2015-06-24 |
| CN104728135B true CN104728135B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510111978.XA Active CN104728135B (en) | 2015-03-13 | 2015-03-13 | Maintainable centrifugal axial-flow fan |
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| Country | Link |
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| CN (1) | CN104728135B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113374710B (en) * | 2021-07-12 | 2023-06-16 | 德州隆达空调设备集团有限公司 | Axial fan convenient to maintenance |
Citations (4)
| 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 |
| CA2880401A1 (en) * | 2014-02-28 | 2015-08-28 | Techtronic Power Tools Technology Limited | Mister fan |
-
2015
- 2015-03-13 CN CN201510111978.XA patent/CN104728135B/en active Active
Patent Citations (4)
| 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 |
| CA2880401A1 (en) * | 2014-02-28 | 2015-08-28 | Techtronic Power Tools Technology Limited | Mister fan |
| CN204493237U (en) * | 2015-03-13 | 2015-07-22 | 中南大学 | A kind of maintainable centrifugal-axial flow ventilator |
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| Publication number | Publication date |
|---|---|
| CN104728135A (en) | 2015-06-24 |
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