CN102900684A - Pipeline fan - Google Patents
Pipeline fan Download PDFInfo
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- CN102900684A CN102900684A CN2012103334429A CN201210333442A CN102900684A CN 102900684 A CN102900684 A CN 102900684A CN 2012103334429 A CN2012103334429 A CN 2012103334429A CN 201210333442 A CN201210333442 A CN 201210333442A CN 102900684 A CN102900684 A CN 102900684A
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Abstract
The invention is applied to the field of pipeline fans and provides a pipeline fan. The pipeline fan comprises an air drum, a motor, a motor base and a fan body. The air drum comprises a first air drum and a second air drum. The axes of the first air drum and the second air drum intersect, the motor base is fixedly arranged outside an intersecting position of the first air drum and the second air drum, the motor is arranged on the motor base, a motor shaft of the motor penetrates through a shaft through hole of the motor base to extend into the first air drum, and the fan body is arranged at the front end of the motor shaft. The pipeline fan achieves fundamental changes of a characteristic of a traditional axial flow fan of being same in air inlet direction and air discharging direction, key conditions of the axial flow fan applied to air supplement in a pipeline are provided, the motor does not cover flow diameter of an air channel, utilization rate of the air channel is high, air resistance is small, maintenance is convenient, energy is saved, heat produced in working of the motor does not affect a pipeline working medium, space use rate of a building provided with an air conditioner pipeline is promoted to be improved.
Description
Technical field
The invention belongs to the blower fan field, relate in particular to a kind of axial flow pipeline fan.
Background technique
Air-conditioning system and industrial supply air system are the practical techniques that current era obtains extensive use, relate to using a large amount of length apart from supply air duct, wherein include square supply air duct, rectangle supply air duct or circular supply air duct.No matter be air-conditioning system or industrial supply air system, usually air supplying distance is longer, the wind that main frame is sent is through the pipeline transmission of long distance, its blast all has remarkable loss, cause being in system's terminal temperature difference and be difficult to obtain desirable air-supply, use wind if system's terminal temperature difference wishes to obtain ideal, need main frame to pay the energy consumption of super nominal power consumption far away, this is very uneconomic.Address this problem one effectively and economic means be in the supply air duct system of growing distance, small-power relaying blast device to be set.
Small-power relaying blast device is rectangular ducted fan, the basic functional principle of rectangular ducted fan belongs to centrifugal blower air-supply principle, it is identical with rectangle or the square air-conditioning duct cross section of needs string dress that basic structure is that the air inlet/outlet cross section of rectangular ducted fan is got, and the interior cross section essence of rectangular ducted fan is for to be divided into two the Fan pipeline cross section, a part is useed air inlet duct as, another part is useed the exhaust passage as, be inlaid in centrifugal blower arbor in the Fan pipeline and get vertically with the fan air channel length direction, the wind wheel apparatus of centrifugal blower is in air-out air channel one side.So the rectangular ducted fan deficiency of structure is apparent, and it significantly dwindles duct cross-section, sells off in the inner distinguished and admirable generation direction of rectangular ducted fan, and the ineffective energy consumption increase and the structure that cause the windage increase to cause are complicated; Add the Energy Efficiency Ratio of employed centrifugal blower own and be lower than axial-flow blower, and motor is placed in the air channel, the machine operation heat production is absorbed and enters in the pipeline wind, the transporting cold wind situation, can cause cold effect to reduce, so existing air-conditioning technical uses rectangular ducted fan as long relaying air-supply apart from the air-conditioning duct system, its cost is high; Also because its rectangular configuration is not supported in the circular air channel and uses.
Rectangular ducted fan is also because the intrinsic Z-type air flue structure of its centrifugal blower, if running in the working procedure that blower fan damages can not working condition, be transferred the air-supply relaying support that air-flow not only can not obtain rectangular ducted fan in system's supply air duct, to carry kinetic energy for the windage waste of going beyond the intrinsic Z-type air flue structure of rectangle centrifugal pipeline fan on the contrary, increase air-conditioning energy consumption and reduction air-conditioner efficiency.
Air quantity is large, and simple in structure is the outstanding advantage of axial-flow blower, but it has also put on the application yoke for it into and out of the coaxial basic structural feature of air port and air duct, has limited to axial-flow blower and has used the nimble property of installing; And motor places in the air channel, inconvenient maintenance, and the machine operation heat production can be absorbed equally and enter in the pipeline wind; Motor occupies the air channel flow path, for obtaining to set air quantity, is forced to increase the air duct radial dimension; These defectives of axial-flow blower cause axial-flow blower to be excluded outside the small-power pipeline relaying air-supply of air-conditioning system or industry air-supply always.
Summary of the invention
The object of the present invention is to provide a kind of axial flow type pipe blower fan, be intended to solve axial-flow blower because of advance, the air draft direction is identical, hinder the intrinsic shortcoming that it enters the relaying air-supply field of central air-conditioner or the logical supply air system of industry, the problem of the application that the developing axial-flow blower is new.
The present invention realizes like this, a kind of pipeline fan, this pipeline fan comprises air duct, motor, motor cabinet and fan body, described air duct comprises the first air duct and the second air duct, described the first air duct and described the second air duct axes intersect, described the first air duct and the outside, described the second air duct intersection are installed with described motor cabinet, described electric machine is on described motor cabinet, the motor shaft of described motor passes the set shaft through-hole of described motor cabinet and extends in described the first air duct, and described fan body is located at described motor shaft front end.
Further technological scheme of the present invention is: described the first air duct is the straight line air duct.
Further technological scheme of the present invention is: described the first air duct and described the second air duct rounding off.
Further technological scheme of the present invention is: the axis angle of cut of described the first air duct and described the second air duct is right angle or obtuse angle.
Further technological scheme of the present invention is: the cross section is square or circular in described the first air duct and the second air duct.
Further technological scheme of the present invention is: the axis of described the first air duct and the axis of described shaft through-hole are coaxial.
Further technological scheme of the present invention is: the air port of described the first air duct and described the second air duct is provided with interface.
Further technological scheme of the present invention is: described interface is flange-interface.
Further technological scheme of the present invention is: be provided with bearing means in described the first air duct, described motor shaft obtains the supporting of described bearing means institute device bearing in described the first air duct.
Further technological scheme of the present invention is: described bearing means is absolute construction or is and described the first air duct inwall integrative-structure.
The invention has the beneficial effects as follows: pipeline fan provided by the invention, realized to traditional axial-flow blower advance, the radical change of air draft direction same characteristic features, create key condition for axial-flow blower is applied to the air-supply of pipeline relaying, enriched the relaying Fan Product type in pipeline fan field.Replace bend pipe in logical supply air duct system by this pipeline fan, be installed in the bending part in the logical supply air duct system, with centrifugal pipeline fan relatively, the duct cross-section utilization ratio significantly improves, and air quantity is large and energy consumption is low, simple in structure on year-on-year basis; Unit time air channel flow increases, and is conducive to reduce the ventilation duct sectional area, and brings thus the high compression that accounts for of logical supply air duct, promotes the raising of building space utilization ratio; The increase of aisle, the guest room outage of the hotel of typical case as application central air-conditioner, the comfortable feel of increase customer service object; And electric machine external property easy to maintenance is better than centrifugal pipeline fan, and motor does not account for the air channel flow path; The device bearing bracket increases the fan body operation stability in the air duct; The machine operation heat production does not enter in the pipeline wind; Convenient type of making the logical ajutage of adaptive circle; In logical supply air system, use the present invention for the relaying air-supply of pipeline wind and also can reduce pipeline fan cost and operating cost, and gather in the crops good relaying air-supply effect and energy-conservation, have powerful competitive advantage in pipeline relaying air-supply field.
Description of drawings
Fig. 1 is pipeline fan embodiment's one provided by the invention structural representation;
Fig. 2 is pipeline fan embodiment's one provided by the invention front elevation;
Fig. 3 is pipeline fan embodiment's one provided by the invention Wind cylinder structure schematic diagram;
Fig. 4 is pipeline fan embodiment's one provided by the invention Wind cylinder structure schematic diagram;
Fig. 5 is pipeline fan embodiment's two provided by the invention structural representation;
Fig. 6 is pipeline fan embodiment's two provided by the invention Wind cylinder structure schematic diagram;
Fig. 7 is pipeline fan embodiment's two provided by the invention Wind cylinder structure schematic diagram.
Reference character: 10-motor 20-motor cabinet 30-air duct 40-bearing means 50-fan body 101-motor shaft 201-fixing threaded hole 202-depressed part 203-shaft through-hole 301-the first air duct 302-the second air duct 304-interface 401-bearing 402-bearing bracket 501-flabellum
Embodiment
In order to make purpose of the present invention, technological scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
Embodiment one
Fig. 1, to shown in Figure 4, a kind of pipeline fan, this pipeline fan comprises air duct 30, motor 10, motor cabinet 20 and fan body 50, described air duct 30 comprises the first air duct 301 and the second air duct 302, described the first air duct 301 and described the second air duct 302 axes intersect, described the first air duct 301 is installed with described motor cabinet 20 with the outside, described the second air duct 302 intersections, described motor 10 is installed on the described motor cabinet 20, the motor shaft 101 of described motor 10 passes described motor cabinet 20 set shaft through-holes 203 and extends in the first air duct, and described fan body 50 is located at described motor shaft 101 front ends.
As shown in Figures 1 to 4, described the first air duct 301 can all be the straight line air duct with described the second air duct 302, also can be that described the first air duct 301 is the straight line air duct, described the second air duct 302 be unrestricted, and described straight line air duct is that axis is the air duct of straight line.
As shown in Figures 1 to 4, described the first air duct 301 and described the second air duct 302 rounding ofves, described the first air duct 301 and described the second air duct 302 axes intersect, the angle of cut is right angle or obtuse angle, described the first air duct 301 is square with the interior cross section of described the second air duct 302.
As shown in Figures 1 to 4, place, the air port of described air duct 30 is provided with interface 304, and described interface 304 is flange-interface, and interface 304 docks fastening for pipeline fan with pipeline.
As shown in Figures 1 to 4, described air duct 30 air port place be provided with interface 304, described interface 304 is flange-interface, interface 304 docks fastening for pipeline fan with pipeline.
As shown in Figures 1 to 4, be provided with bearing means 40 in described the first air duct 301, described bearing means 40 provides supporting for described motor shaft 101 in described the first air duct 301.
As shown in Figures 1 to 4, described bearing means 40 comprises that bearing 401(is not shown) and bearing bracket 402, described bearing 401 install with the set bearing support (not shown) of described bearing bracket 402 in, described bearing support links together through the air duct wall of two spokes and described the first air duct 301 or the body member of described bearing bracket 402 at least.Wherein, bearing means 40 provides stabilization at work for motor shaft 101.
As shown in Figures 1 to 4, described bearing means 40 can be the absolute construction that separates with described air duct 30 inwalls, also can be to be integrative-structures with described air duct 30 inwalls.
As shown in Figures 1 to 4, when described bearing means 40 during for the absolute construction that separates with described air duct 30 inwalls, the profile of described bearing means 40 housings and described air duct 30 interior all shapes are adaptive.
As shown in Figures 1 to 4, described the second air duct 302 length are got greater than zero.
As shown in Figures 1 to 4, be arranged at the outside, intersection of described the first air duct 301 and described the second air duct 302 on the described motor cabinet 20.Be provided with depressed part 202 and fixing device on described motor cabinet 20 end face corresponding with the first air duct 301 air ports.Described depressed part 202 is rounded, and the axis of the center line of described depressed part 202 and described the first air duct 301 is coaxial, and the effect of described depressed part 202 provides motor 10 location.Lug boss formation transition fit when described depressed part 202 is located described motor 10 and on the described motor 10.The effect of described fixing device is that motor 10 is installed on the motor cabinet 20.Fixing device comprises fixing threaded hole 201 and set screw (not shown), screws motor 10 is fastened on the motor cabinet 20 in set screw screws in fixing threaded hole 201, makes motor 10 break away from motor cabinet 20 when set screw screws out fixing threaded hole 201.By the loading and unloading of the convenient described motor 10 of fixing device, convenient for maintaining and maintenance when described motor 10 breaks down.
As shown in Figures 1 to 4, also be provided with shaft through-hole 203 on the described motor cabinet 20, described shaft through-hole 203 is arranged at the bottom of described depressed part 202, described shaft through-hole 203 passes for described motor shaft 101 and extends in described the first air duct 301, the center line of described shaft through-hole 203 and described the first air duct 301 axis, described depressed part 202 center lines are coaxial, and the diameter of described shaft through-hole 203 is less than the diameter of described depressed part 202.The slightly larger in diameter of described shaft through-hole 203 makes described motor shaft 101 and described shaft through-hole 203 form Spielpassung in the diameter of described motor shaft 101.
As shown in Figures 1 to 4, described motor 10 is fixedly arranged on the described motor cabinet, and described motor cabinet is located at the outside, intersection of described the first air duct 301 and described the second air duct 302.The outside that wherein said motor 10 is arranged at air duct 30 does not take duct space, improves the duct cross-section utilization ratio, and the heat that described motor 10 work produce is not absorbed by described air duct 30 interior working mediums.
As shown in Figures 1 to 4, described motor shaft 101 extends in described the first air duct 301, need described motor shaft 101 to lengthen, described motor shaft 101 is long, and will to produce at work vibrations unstable, stablize in order to make described motor shaft 101 in working, described the first air duct 301 interior bearing meanss 40 that arrange, bearing means 40 at work described motor shaft 101 operational shocks reduce, have improved stability.Described motor shaft 101 passes described shaft through-hole and enters in described the first air duct 301, and the shaft axis of described motor shaft 101 and described the first air duct 301 axis are coaxial.
As shown in Figures 1 to 4, described fan body 50 is arranged at axle head or the proximal ends of described motor shaft 101.
As shown in Figures 1 to 4, all can in described fan body 50 both sides that are arranged at described bearing means 40.
Such as Fig. 1, to shown in Figure 4, be provided with at least two flabellums 501 on the described fan body 50.
Embodiment two
Fig. 5, to shown in Figure 7, a kind of pipeline fan, this pipeline fan comprises air duct 30, motor 10, motor cabinet 20 and fan body 50, described air duct 30 comprises the first air duct 301 and the second air duct 302, described the first air duct 301 and described the second air duct 302 axes intersect, described the first air duct 301 is installed with described motor cabinet 20 with the outside, described the second air duct 302 intersections, described motor 10 is installed on the described motor cabinet 20, the motor shaft 101 of described motor 10 passes described motor cabinet 20 set shaft through-holes 203 and extends in the first air duct, and described fan body 50 is located at described motor shaft 101 front ends.
Such as Fig. 5, to shown in Figure 7, described the first air duct 301 is the straight line air duct with described the second air duct 302, and described straight line air duct is that axis is the air duct of straight line.
Such as Fig. 5, to shown in Figure 7, described the first air duct 301 and described the second air duct 302 rounding ofves, described the first air duct 301 and described the second air duct 302 axes intersect, the angle of cut is right angle or obtuse angle, described the first air duct 301 is circular with the interior cross section of described the second air duct 302.
Such as Fig. 5, to shown in Figure 7, place, the air port of described air duct 30 is provided with interface 304, and described interface 304 is flange-interface, and interface 304 docks fastening for pipeline fan with pipeline.
Such as Fig. 5 to shown in Figure 7, described air duct 30 place, an air port be provided with interface 304, described interface 304 is flange-interface, interface 304 docks fastening for pipeline fan with pipeline.
Such as Fig. 5, to shown in Figure 7, be provided with bearing means 40 in described the first air duct 301, described bearing means 40 provides supporting for described motor shaft 101 in described the first air duct 301.
Such as Fig. 5, to shown in Figure 7, described bearing means 40 comprises that bearing 401(is not shown) and bearing bracket 402, described bearing 401 install with the set bearing support (not shown) of described bearing bracket 402 in, described bearing support links together through the air duct wall of two spokes and described the first air duct 301 or the body member of described bearing bracket 402 at least.Wherein, bearing means 40 provides stabilization at work for motor shaft 101.
To shown in Figure 7, described bearing means 40 can be the absolute construction that separates with described air duct 30 inwalls such as Fig. 5, also can be to be integrative-structures with described air duct 30 inwalls.
To shown in Figure 7, when described bearing means 40 during for the absolute construction that separates with described sub-air duct 30 inwalls, the profile of described bearing means 40 housings and described air duct 30 interior all shapes are adaptive such as Fig. 5.
Such as Fig. 5, to shown in Figure 7, described the second air duct 302 length are got greater than zero.
Such as Fig. 5, to shown in Figure 7, be arranged at the outside, intersection of described the first air duct 301 and described the second air duct 302 on the described motor cabinet 20.Be provided with depressed part 202 and fixing device on described motor cabinet 20 end face corresponding with the first air duct 301 air ports.Described depressed part 202 is rounded, and the axis of the center line of described depressed part 202 and described the first air duct 301 is coaxial, and the effect of described depressed part 202 provides motor 10 location.Lug boss formation transition fit when described depressed part 202 is located described motor 10 and on the described motor 10.The effect of described fixing device is that motor 10 is installed on the motor cabinet 20.Fixing device comprises fixing threaded hole 201 and set screw (not shown), screws motor 10 is fastened on the motor cabinet 20 in set screw screws in fixing threaded hole 201, makes motor 10 break away from motor cabinet 20 when set screw screws out fixing threaded hole 201.By the loading and unloading of the convenient described motor 10 of fixing device, convenient for maintaining and maintenance when described motor 10 breaks down.
Such as Fig. 5, to shown in Figure 7, also be provided with shaft through-hole 203 on the described motor cabinet 20, described shaft through-hole 203 is arranged at the bottom of described depressed part 202, described shaft through-hole 203 passes for described motor shaft 101 and extends in described the first air duct 301, the center line of described shaft through-hole 203 and described the first air duct 301 axis, described depressed part 202 center lines are coaxial, and the diameter of described shaft through-hole 203 is less than the diameter of described depressed part 202.The slightly larger in diameter of described shaft through-hole 203 makes described motor shaft 101 and described shaft through-hole 203 form Spielpassung in the diameter of described motor shaft 101.
Such as Fig. 5, to shown in Figure 7, described motor 10 is fixedly arranged on the described motor cabinet 20, and described motor cabinet 20 is located at the outside, intersection of described the first air duct 301 and described the second air duct 302.The outside that wherein said motor 10 is arranged at air duct 30 does not take duct space, improves the duct cross-section utilization ratio, and the heat that described motor 10 work produce is not absorbed by working medium in the described air duct.
Such as Fig. 5, to shown in Figure 7, described motor shaft 101 extends in described the first air duct 301, need described motor shaft 101 to lengthen, described motor shaft 101 is long, and will to produce at work vibrations unstable, stablize in order to make described motor shaft 101 in working, described the first air duct 301 interior bearing meanss 40 that arrange, bearing means 40 at work described motor shaft 101 operational shocks reduce, have improved stability.Described motor shaft 101 passes described shaft through-hole and enters in described the first air duct 301, and the shaft axis of described motor shaft 101 and described the first air duct 301 axis are coaxial.
Such as Fig. 5, to shown in Figure 7, described fan body 50 is arranged at axle head or the proximal ends of described motor shaft 101.
Such as Fig. 5, to shown in Figure 7, all can in the both sides that described fan body 50 is arranged at described bearing means 40.
Such as Fig. 5, to shown in Figure 7, be provided with at least two flabellums 501 on the described fan body 50.
This pipeline fan replaces the bend pipe in logical supply air duct system, is installed in the bending part in the logical supply air duct system, with centrifugal pipeline fan relatively, the duct cross-section utilization ratio significantly improves, and air quantity is large and energy consumption is low, simple in structure on year-on-year basis; Unit time air channel flow increases, and is conducive to reduce the ventilation duct sectional area, and brings thus the high compression that accounts for of logical supply air duct, promotes the raising of building space utilization ratio; The increase of aisle, the guest room outage of the hotel of typical case as application central air-conditioner, the comfortable feel of increase customer service object; And electric machine external property easy to maintenance is better than centrifugal pipeline fan, and motor does not account for the air channel flow path; The device bearing bracket increases the fan body operation stability in the air duct; The machine operation heat production does not enter in the pipeline wind; Convenient type of making the logical ajutage of adaptive circle; In logical supply air system, use the present invention for the air-supply of pipeline wind relaying and also can reduce pipeline fan cost and operating cost, and gather in the crops good relaying air-supply effect and energy-conservation.Adopt the present invention by the axial flow air flue structure of electric machine external, even running in the working procedure that blower fan damages can not working condition, still do not change and be transferred the air-flow throughput direction in system's supply air duct, can only be flabellum to what delivery air had that windage forms, much smaller with Z-type air flue structure and its windage of impeller comparison of centrifugal blower, so in the supply air duct to be transferred air flow losses few, little on the reduction impact of air-conditioner efficiency, be conducive to energy-conservation.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. pipeline fan, it is characterized in that: this pipeline fan comprises air duct, motor, motor cabinet and fan body, described air duct comprises the first air duct and the second air duct, described the first air duct and described the second air duct axes intersect, described the first air duct and the outside, described the second air duct intersection are installed with described motor cabinet, described electric machine is on described motor cabinet, the motor shaft of described motor passes the set shaft through-hole of described motor cabinet and extends in described the first air duct, and described fan body is located at described motor shaft front end.
2. pipeline fan according to claim 1, it is characterized in that: described the first air duct is the straight line air duct.
3. pipeline fan according to claim 2 is characterized in that: described the first air duct and described the second air duct rounding off.
4. pipeline fan according to claim 3, it is characterized in that: the axis angle of cut of described the first air duct and described the second air duct is right angle or obtuse angle.
5. pipeline fan according to claim 4 is characterized in that: the cross section is square or circular in described the first air duct and the second air duct.
6. pipeline fan according to claim 5, it is characterized in that: the axis of described the first air duct and the axis of described shaft through-hole are coaxial.
7. pipeline fan according to claim 6, it is characterized in that: the air port of described the first air duct and described the second air duct is provided with interface.
8. pipeline fan according to claim 7, it is characterized in that: described interface is flange-interface.
9. each described pipeline fan according to claim 1-8 is characterized in that: be provided with bearing means in described the first air duct, described motor shaft obtains the supporting of described bearing means institute device bearing in described the first air duct.
10. pipeline fan according to claim 9 is characterized in that: described bearing means be absolute construction or for and described the first air duct inwall integrative-structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103334429A CN102900684A (en) | 2012-09-11 | 2012-09-11 | Pipeline fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103334429A CN102900684A (en) | 2012-09-11 | 2012-09-11 | Pipeline fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102900684A true CN102900684A (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103334429A Pending CN102900684A (en) | 2012-09-11 | 2012-09-11 | Pipeline fan |
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| Country | Link |
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| CN (1) | CN102900684A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949553A (en) * | 2017-04-28 | 2017-07-14 | 中汽（天津）系统工程有限公司 | The embedded fan installing structure of industrial air-conditioning and industrial air-conditioning |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK466888A (en) * | 1987-08-21 | 1989-02-22 | Ishikawajima Harima Heavy Ind | POWER APPLIANCE |
| CN2374679Y (en) * | 1999-05-28 | 2000-04-19 | 高明市正野电器实业有限公司 | Ventilator |
| CN2381818Y (en) * | 1999-07-14 | 2000-06-07 | 邹明祯 | Push-style self cooling fan |
| CN101275577A (en) * | 2008-04-02 | 2008-10-01 | 北京博奇电力科技有限公司 | Oxidized wind machinery room ventilating system and method thereof |
| CN201908853U (en) * | 2010-12-22 | 2011-07-27 | 上海诺地乐通用设备制造有限公司 | Pipeline axial flow fan |
| CN202402224U (en) * | 2012-01-20 | 2012-08-29 | 周登荣 | Strong air supply dust removing system of wind power generation tower |
-
2012
- 2012-09-11 CN CN2012103334429A patent/CN102900684A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK466888A (en) * | 1987-08-21 | 1989-02-22 | Ishikawajima Harima Heavy Ind | POWER APPLIANCE |
| CN2374679Y (en) * | 1999-05-28 | 2000-04-19 | 高明市正野电器实业有限公司 | Ventilator |
| CN2381818Y (en) * | 1999-07-14 | 2000-06-07 | 邹明祯 | Push-style self cooling fan |
| CN101275577A (en) * | 2008-04-02 | 2008-10-01 | 北京博奇电力科技有限公司 | Oxidized wind machinery room ventilating system and method thereof |
| CN201908853U (en) * | 2010-12-22 | 2011-07-27 | 上海诺地乐通用设备制造有限公司 | Pipeline axial flow fan |
| CN202402224U (en) * | 2012-01-20 | 2012-08-29 | 周登荣 | Strong air supply dust removing system of wind power generation tower |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949553A (en) * | 2017-04-28 | 2017-07-14 | 中汽（天津）系统工程有限公司 | The embedded fan installing structure of industrial air-conditioning and industrial air-conditioning |
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Application publication date: 20130130 |