CN205297977U - Double entry cooling blower - Google Patents
Double entry cooling blower Download PDFInfo
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- CN205297977U CN205297977U CN201521136326.3U CN201521136326U CN205297977U CN 205297977 U CN205297977 U CN 205297977U CN 201521136326 U CN201521136326 U CN 201521136326U CN 205297977 U CN205297977 U CN 205297977U
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- axial
- air duct
- cooling blower
- dryer
- blade
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Abstract
The utility model provides a double entry cooling blower, including both ends open -ended cylinder dryer the oblique flow impeller, motor and the axial compressor impeller that set gradually to the rear end along its axial front end in the dryer, set up in be used for in the dryer supporting the motor mount pad of motor and set up in the terminal box in the dryer outside, the dryer includes the outer dryer of coaxial setting, interior dryer, collector and stator, interior dryer is located in the outer dryer, the annular gas channel of the intermural formation of a section of thick bamboo of the two, stator radial distribution in in the gas channel and with the two fixed connection, the collector is located the axial front end of outer dryer, and through the inner flange rather than inner wall fixed connection. The utility model provides a double entry cooling blower compact structure, design optimization make the fan under the prerequisite that abundant specified performance required, have efficient, the noise low, the little characteristics of vibration, the whole smooth operation of fan, safe and reliable.
Description
Technical field
This utility model relates to fluid conveying machine technical field, in particular it relates to a kind of compound cooling blower.
Background technology
Cooling blower is a vitals in standardization moving vehicle set transformer structure, substantial amounts of heat operationally can be produced due to transformator, and the accumulation of heat can make transformator work under a hot environment for a long time, thus causing the reduction in transformator service life, the dangerous situation of short circuit and scaling loss even occurs, it is thus desirable to transformator is forced heat radiation by cooling blower, to ensure the normal operation of transformator.
Owing to the working environment of EMUs is changeable and severe, and cooling blower is typically mounted at the bottom of EMUs, and time is often accompanied by strong wind, sleet and is subject to the impact of salt fog, coal dust and sandstorm once in a while, so the reliability of fan operation is proposed high requirement. And for rail traffic vehicles, noise is more low, vibration is more little, client's comfort level is more high, it is contemplated that the arrangement of air supply duct in the position of assembling and locomotive, it should make blower fan have volume is little, light weight, blast are big feature; Simultaneously in order to accelerate radiating rate, when ensureing that Fan Product performance is constant, the air-supply efficiency of blower fan to be improved so that it is while big flow, reduce energy consumption as far as possible. Existing axial flow blower disclosure satisfy that space mounting size and the demand of big flow, but the pressure of its conveying is relatively low, it is difficult to reach the high pressure standard that fanman is required, if setting up axial wheel, then noise very greatly and still cannot solve the problem of low blast, if setting up centrifugal impeller, although high pressure requirement can be met, but its vent flow is little, air-supply efficiency is low, and many wind energies of meeting loss during air-flow break-in, loss is bigger. For standardization moving vehicle set transformer, diagonal impeller can well supply the short slab of axial flow blower.
Utility model content
For overcoming the technical problem that efficiency is low, air flow rate is little of blowing in prior art, this utility model provides a kind of compact conformation and has the compound cooling blower of high blast, big flow, low noise, high efficiency feature.
A kind of compound cooling blower, including the cylindrical circular air duct of both ends open and shell, the diagonal impeller set gradually along its axial forward end to rear end in described air duct, motor and axial wheel, is arranged in described air duct for supporting the motor mount of described motor and being arranged at the rosette outside described air duct;
The axial forward end of described air duct is air inlet and axial rearward end is air outlet, it includes the outer air duct being coaxially disposed, interior air duct, current collector and stator, described interior air duct is located in described outer air duct, the gas flow of annular is formed between the barrel of the two, described stator is located in described gas flow and is fixed with the two and is connected, the axial forward end of described outer air duct is located at by described current collector, and is connected by inner flange and its inwall are fixing;
Oblique flow blade around described diagonal impeller wheel hub of diagonal impeller wheel hub that described diagonal impeller includes being connected with described motor shaft head, radial distribution and be arranged at the dust cap of described diagonal impeller hub spindle forward end;
Described axial wheel includes the axial wheel wheel hub and the radial distribution axial blade around described axial wheel wheel hub that are connected with another spindle nose of described motor.
According to a preferred embodiment of the present utility model, described oblique flow blade is RAF-6E aerofoil profile, its cross section established angle radially from the inside to the outside be gradually transitions 142 �� from 55 ��.
According to a preferred embodiment of the present utility model, the axial forward end of described diagonal impeller inserts the air outlet of described current collector, and the distance between described oblique flow blade and described current collector inwall is 3-5mm.
According to a preferred embodiment of the present utility model, described axial blade is propeller aerofoil profile, its cross section established angle radially from the inside to the outside be gradually transitions 56.5 �� from 51 ��.
According to a preferred embodiment of the present utility model, the distance between described axial blade and described outer air duct inwall is 1.5-5.5mm.
According to a preferred embodiment of the present utility model, described in lead as circular arc distorted-structure, its radius of the radian radially from the inside to the outside be gradually transitions 135mm from 122mm.
According to a preferred embodiment of the present utility model, the axial distance between described oblique flow blade and described stator is 93-100mm.
According to a preferred embodiment of the present utility model, the axial distance between described axial blade and described stator is 68-74mm.
According to a preferred embodiment of the present utility model, described blower fan also includes being located at the fan installation frame outside described outer air duct, and described blower fan can be installed on the bottom of locomotive by described fan installation frame.
According to a preferred embodiment of the present utility model, described air duct also includes being located on the reinforcement flange outside described outer air duct.
The technical scheme that this utility model provides has the advantages that
1, described cooling blower is by optimizing design so that it is compact conformation, space availability ratio are high, are especially suitable for the requirement of the little space required by moving vehicle set transformer, low noise, small vibration.
2, described cooling blower is two-stage propeller fan, it takes full advantage of diagonal flow type air-supply and axial blast combines big discharge coefficient, high efficiency, advantage that working range is wide, air intake at blower fan adopts diagonal impeller, axial wheel is adopted at outlet air end, the performance curve making blower fan is smooth, in specific mechanical is taken up space, keep providing when elevated pressures bigger flow, each performance parameter is all improved, and overall operation is steady, fully meets requirements of the air-conditioning requirement of moving vehicle set transformer.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, below the accompanying drawing used required during embodiment is described is briefly described, apparently, drawings discussed below is only embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of a kind of embodiment of the compound cooling blower that this utility model provides;
Fig. 2 is the left view of embodiment illustrated in fig. 1;
Fig. 3 is front view and the side view of embodiment illustrated in fig. 1 diagonal impeller;
Fig. 4 is the right view of embodiment illustrated in fig. 1;
Fig. 5 is front view and the side view of embodiment illustrated in fig. 1 axial wheel;
In figure: 1 air duct, 2 motors, 3 motor mounts, 4 diagonal impellers, 5 axial wheels, 6 fan installation frames, 7 rosettees; 11 outer air ducts, air duct in 12,13 current collectors, 14 inner flanges, 15 stators, 16 strengthen flange; 41 diagonal impeller wheel hubs, 42 oblique flow blades, 43 dust caps; 51 axial wheel wheel hubs, 52 axial blades.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present utility model, rather than whole embodiments. Based on the embodiment in this utility model, all other embodiments that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
Refer to Fig. 1, for the structural representation of a kind of embodiment of the compound cooling blower that this utility model provides. Described compound cooling blower includes both ends open and shell is columnar air duct 1, and its axial forward end is air inlet, and axial rearward end is air outlet, along its axial forward end to rear end in described air duct 1, is disposed with diagonal impeller 4, motor 2 and axial wheel 5.
Described air duct 1 includes the outer air duct 11, interior air duct 12, current collector 13 and the stator 15 that are coaxially disposed. The inside of described outer air duct 11 is located at by described interior air duct 12, forms gas flow the passing through for air-flow of annular between the barrel of the two; Described stator 15 is uniformly distributed in described gas flow, and it all welds with the barrel of described interior air duct 12 and described outer air duct 11, plays the effect of fixing support; Described current collector 13 is arc and the axial forward end being located at described outer air duct 11, and it is fixedly connected on the inwall of described outer air duct 11 by inner flange 14.
Described motor 2 is dual-axle motor, and its spindle nose being located at axial two ends is fixed be connected with described diagonal impeller 4 and described axial wheel 5 respectively, and the two can be driven to rotate. Described motor 2 is arranged in described interior air duct 12, and the inwall of described interior air duct 12 is welded with the " motor mount 3 of [" shape, the two fixing can be connected by described motor 2 with its groove structure card merga pass bolt, to reach the supporting role to described motor 2.
Seeing also Fig. 2 and Fig. 3, wherein Fig. 2 is the left view of embodiment illustrated in fig. 1, and Fig. 3 is front view and the side view of embodiment illustrated in fig. 1 diagonal impeller. Described diagonal impeller 4 includes diagonal impeller wheel hub 41, oblique flow blade 42 and dust cap 43. The axial forward end of described motor 2 is located at by described diagonal impeller wheel hub 41, described oblique flow blade 42 radial distribution is in described diagonal impeller wheel hub 41 around, described dust cap 43 is circular arc, its be arranged at the axial forward end of described diagonal impeller wheel hub 41 and the two between be bolted to connection, by gas to the blade water conservancy diversion of surrounding, and can prevent foreign material and dust from entering because of the high-speed cruising of train in described motor 2. The axial forward end of described diagonal impeller 4 inserts the air outlet of described current collector 13, while ensureing the blade maximum acting to gas, also for preventing from colliding between blade and barrel, distance nearest between described oblique flow blade 42 and the inwall of described current collector 13 should in the scope of 3-5mm.
Please consulting Fig. 4 and Fig. 5 more in the lump, wherein Fig. 2 is the right view of embodiment illustrated in fig. 1, and Fig. 3 is front view and the side view of embodiment illustrated in fig. 1 axial wheel. Described axial wheel 5 includes axial wheel wheel hub 51 and axial blade 52, the axial rearward end of described motor 2 is located at by described axial wheel wheel hub 51, described axial blade 52 radial distribution is in described axial wheel wheel hub 51 around, while ensureing the blade maximum acting to gas, also for preventing from colliding between blade and barrel, distance nearest between described axial blade 52 and the inwall of described current collector 13 should in the scope of 1.5-5.5mm.
Being additionally provided with the rosette 7 electrically connected with described motor 2 outside described air duct 1, it connects with the Circuits System of locomotive, for providing driving electric to described motor 2.
Outer wall at described air duct 11 is also welded with for fan installation frame 6 and strengthens flange 16, described fan installation frame 6 is for being symmetrical arranged, described blower fan firmly can be installed on the bottom of locomotive, described reinforcement flange 16 is located on the axial two ends of described air duct 11, can strengthen the support strength of described blower fan barrel.
In order to disclosure satisfy that the cooling channel demand of moving vehicle set transformer when ensureing utility model works, its installation parameter need to be optimized design. Wherein, described oblique flow blade 42 is RAF-6E aerofoil profile well known to those skilled in the art, and its quantity is 16, and the cross section established angle of each blade all radially from the inside to the outside be gradually transitions 142 �� from 55 ��. Described axial blade 52 is then propeller aerofoil profile, its quantity is 15, and the cross section established angle of each blade all radially from the inside to the outside be gradually transitions 56.5 �� from 51 ��, the ratio of the diameter of described axial wheel wheel hub 51 and the maximum gauge of described axial wheel 5 is 0.742. Described stator 15 is circular arc distorted-structure, its radius of the radian radially from the inside to the outside be gradually transitions 135mm from 122mm, and the axial distance between itself and described oblique flow blade 42 is 96mm, and described axial blade 52 and axial distance be 71mm.
The compressor flow coefficient that this utility model provides is big, performance curve steady, and its effective static pressure operationally reaches 1100Pa, and flow reaches 156m3/ min, and static pressure efficiency reaches more than 60%, power less than 102dB (A), has that vibration is little less than 5.9kw, Noisy acoustic power level, operates steadily and safe and reliable advantage, is completely suitable for the use environment of standardization moving vehicle set transformer.
The foregoing is only embodiment of the present utility model; not thereby scope of patent protection of the present utility model is limited; every equivalent structure utilizing this utility model description and accompanying drawing content to make or equivalence flow process conversion; directly or indirectly it is used in other relevant technical field, all in like manner includes in scope of patent protection of the present utility model.
Claims (10)
1. a compound cooling blower, it is characterized in that, including both ends open and shell cylindrical circular air duct (1), the diagonal impeller (4) set gradually along its axial forward end to rear end in described air duct (1), motor (2) and axial wheel (5), be arranged at the motor mount (3) being used for supporting described motor (2) in described air duct (1) and be arranged at the rosette (7) in described air duct (1) outside;
The axial forward end of described air duct (1) is air inlet and axial rearward end is air outlet, it includes the outer air duct (11) being coaxially disposed, interior air duct (12), current collector (13) and stator (15), described interior air duct (12) is located in described outer air duct (11), the gas flow of annular is formed between the barrel of the two, described stator (15) is located in described gas flow and is fixed with the two and is connected, the axial forward end of described outer air duct (11) is located at by described current collector (13), and is connected by inner flange (14) and its inwall are fixing;
Diagonal impeller wheel hub (41) that described diagonal impeller (4) includes being connected with described motor (2) spindle nose, radial distribution are in described diagonal impeller wheel hub (41) oblique flow blade (42) around and the dust cap (43) being arranged at described diagonal impeller wheel hub (41) axial forward end;
Described axial wheel (5) includes the axial wheel wheel hub (51) and the radial distribution axial blade (52) around described axial wheel wheel hub (51) that are connected with described motor (2) another spindle nose.
2. compound cooling blower according to claim 1, it is characterised in that described oblique flow blade (42) is RAF-6E aerofoil profile, its cross section established angle radially from the inside to the outside be gradually transitions 142 �� from 55 ��.
3. compound cooling blower according to claim 2, it is characterized in that, the axial forward end of described diagonal impeller (4) inserts the air outlet of described current collector (13), and the distance between described oblique flow blade (42) and described current collector (13) inwall is 3-5mm.
4. compound cooling blower according to claim 2, it is characterised in that described axial blade (42) is propeller aerofoil profile, its cross section established angle radially from the inside to the outside be gradually transitions 56.5 �� from 51 ��.
5. compound cooling blower according to claim 4, it is characterised in that the distance between described axial blade (52) and described outer air duct (11) inwall is 1.5-5.5mm.
6. compound cooling blower according to claim 4, it is characterised in that described stator (15) is circular arc distorted-structure, its radius of the radian radially from the inside to the outside be gradually transitions 135mm from 122mm.
7. compound cooling blower according to claim 6, it is characterised in that the axial distance between described oblique flow blade (42) and described stator (15) is 93-100mm.
8. compound cooling blower according to claim 7, it is characterised in that the axial distance between described axial blade (52) and described stator (15) is 68-74mm.
9. compound cooling blower according to claim 1, it is characterized in that, described blower fan also includes the fan installation frame (6) being located at described outer air duct (11) outside, and described blower fan can pass through described fan installation frame (6) and be installed on the bottom of locomotive.
10. compound cooling blower according to claim 9, it is characterised in that described air duct (1) also includes the reinforcement flange (16) being located on described outer air duct (11) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521136326.3U CN205297977U (en) | 2015-12-31 | 2015-12-31 | Double entry cooling blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521136326.3U CN205297977U (en) | 2015-12-31 | 2015-12-31 | Double entry cooling blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205297977U true CN205297977U (en) | 2016-06-08 |
Family
ID=56469781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521136326.3U Withdrawn - After Issue CN205297977U (en) | 2015-12-31 | 2015-12-31 | Double entry cooling blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205297977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443417A (en) * | 2015-12-31 | 2016-03-30 | 株洲联诚集团有限责任公司 | Compound cooling fan |
-
2015
- 2015-12-31 CN CN201521136326.3U patent/CN205297977U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443417A (en) * | 2015-12-31 | 2016-03-30 | 株洲联诚集团有限责任公司 | Compound cooling fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160608 Effective date of abandoning: 20181204 |