CN203774905U - Generator stator ventilating duct structure with spoiler - Google Patents
Generator stator ventilating duct structure with spoiler Download PDFInfo
- Publication number
- CN203774905U CN203774905U CN201420032682.XU CN201420032682U CN203774905U CN 203774905 U CN203774905 U CN 203774905U CN 201420032682 U CN201420032682 U CN 201420032682U CN 203774905 U CN203774905 U CN 203774905U
- Authority
- CN
- China
- Prior art keywords
- vent segment
- spoiler
- spoilers
- refrigerating gas
- ventilation ducts
- 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.)
- Expired - Lifetime
Links
- 238000009423 ventilation Methods 0.000 claims description 39
- 241000826860 Trapezium Species 0.000 claims description 4
- 238000001816 cooling Methods 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses a generator stator ventilating duct structure with spoilers. The generator stator ventilating duct structure comprises an upper ventilating slot sheet and a lower ventilating slot sheet, wherein a plurality of spoilers are vertically arranged on the upper ventilating slot sheet or the lower ventilating slot sheet, and windward sides of the spoilers are vertical to the flow direction of cooling air. The generator stator ventilating duct structure with the spoilers can improve the turbulence intensity of the cooling air in the ventilating duct, can increase the contact force and contact area of the cooling air and the ventilating slot sheets, enhances the heat exchange effect of the cooling air and the stator on the premise of ensuring the full utilization of the cooling air, and achieves the purpose of improving stator cooling effect and cooling efficiency.
Description
Technical field
The utility model relates to electrical generator fields, relates in particular to a kind of generator unit stator ventilation ducts structure with spoiler.
Background technology
Along with the progress of design of electrical motor and manufacturing technology, the capacity of motor improves constantly, and power density constantly increases, and it is more and more serious that its loss, heating and ventilating problem also become.In order to guarantee reliability service and the useful life of large-size machine, be necessary to improve ventilation effect and reduce the wastage.
The loss of motor generally comprises rotor copper loss (resistance loss), core loss, bearing loss, draft loss and other losses, and wherein draft loss is occupied very large proportion in motor total losses.Motor is in running, stator winding produces copper loss and generates heat, stator core, because iron loss is generated heat, is mainly taken away the heat of stator winding and stator core generation by the refrigerating gas of the generator unit stator ventilation ducts structure of flowing through, thereby is guaranteed that stator temperature rise is in prescribed limit.Stator ventilation ducts supports (ventilation ducts of the prior art is supported for channel-section steel) by vent segment and a plurality of ventilation ducts and forms, stator ventilation ducts comprises a plurality of ventilation ducts structures, the passage that each ventilation ducts structure is supported by two ventilation ductss and upper and lower vent segment surrounds forms, and heat exchange occurs on the surface that the refrigerating gas of the stator ventilation ducts of flowing through and vent segment and ventilation ducts support.But in the prior art, the cooling effect of stator depends primarily on the effect of the refrigerating gas of the generator unit stator ventilation ducts structure of flowing through and the surface generation heat exchange of vent segment and ventilation ducts support, wherein, the heat exchange area of refrigerating gas flow, flow velocity and fluidised form, vent segment etc. is all the principal elements that affect stator heat radiation.And existing generator unit stator ventilation ducts structure is limited by area of dissipation and refrigerating gas fluidised form, cooling effectiveness is lower, and stator temperature rise also just can not get effectively reducing.
In order to solve the problems of the technologies described above, following technology has been proposed in prior art:
As China Patent No. " 201110372923.6 " discloses a kind of vent segment and with the ventilation ducts of this vent segment and with the motor of this ventilation ducts, its open day is on 06 13rd, 2012, its technical scheme comprises vent segment body, on vent segment body, along wind ditch wind direction, fin is set, described fin and vent segment body form angle.But in actual use, because fin is arranged on the body of vent segment along ventilation ducts wind direction, and fin and vent segment body form angle, this just makes in same ventilation ducts, along the mobile direction of refrigerating gas, same column fin on same vent segment is all on same straight line, cause fin poor to the disturbance ability of refrigerating gas, can not make refrigerating gas in ventilation ducts, form disorderly turbulent flow, make the heat exchange effect of vent segment and refrigerating gas poor, low to the cooling efficiency of stator.In addition, in said structure, refrigerating gas when the ventilation ducts with the dynamics that contacts of fin a little less than, not only cause the utilance of refrigerating gas low, also cause refrigerating gas poor to the cooling-down effect of stator.
Utility model content
The purpose of this utility model is to overcome the above-mentioned problems in the prior art, a kind of generator unit stator ventilation ducts structure with spoiler is provided, the utility model can either improve refrigerating gas mobile turbulence level in ventilation ducts, can improve again the dynamics that contacts and the contact area of refrigerating gas and vent segment, guarantee making full use of under the prerequisite of refrigerating gas, strengthen the heat exchange effect of refrigerating gas and stator, reach the object that improves stator cooling effect and cooling effectiveness.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of generator unit stator ventilation ducts structure with spoiler, comprise vent segment and lower vent segment, it is characterized in that: on described upper vent segment or lower vent segment, be vertically installed with a plurality of spoilers, the mobile direction of the windward side of described spoiler and refrigerating gas is perpendicular.
On described upper vent segment and lower vent segment, be provided with a plurality of spoilers, and gapped between the spoiler on the spoiler on upper vent segment and lower vent segment.
A plurality of spoilers on described upper vent segment at least form a line on upper vent segment along the mobile direction of refrigerating gas, a plurality of spoilers on described lower vent segment at least form a line on lower vent segment along the mobile direction of refrigerating gas, and the spoiler on the spoiler on upper vent segment and lower vent segment is symmetrical.
Described spoiler is trapezium structure.
Employing the utility model has the advantage of:
One, in the utility model, spoiler a plurality of and that the mobile direction of refrigerating gas is perpendicular is set in ventilation ducts, when refrigerating gas passes through ventilation ducts, flow under the prerequisite of speed and just can make refrigerating gas form disorderly turbulent flow fluidised form not needing to improve refrigerating gas, not only make refrigerating gas and vent segment to contact dynamics stronger, also make the contact area of refrigerating gas and vent segment larger, strengthened the heat exchange effect of refrigerating gas and stator, make refrigerating gas better to the cooling effect of stator, cooling effectiveness is higher.
Two, in the utility model, on upper vent segment and lower vent segment, be provided with a plurality of spoilers, make refrigerating gas can in ventilation ducts, form disorderly turbulent flow fluidised form; Gapped between spoiler on spoiler on upper vent segment and lower vent segment, make the refrigerating gas of turbulent flow fluidised form can take away fast the heat of stator.
Three, in the utility model, one row spoiler is at least set on described upper vent segment, one row spoiler is at least set on described lower vent segment, and the spoiler on the spoiler on upper vent segment and lower vent segment is symmetrical, this structure makes the upset better effects if of spoiler to refrigerating gas, guarantees that refrigerating gas relative existing structure under identical flow velocity has higher coefficient of heat transfer.
Four,, in the utility model, the spoiler of trapezium structure makes to form irregular air channel in ventilation ducts, is conducive to upset refrigerating gas.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A partial sectional view in Fig. 1.
Being labeled as in figure: 1, ventilation ducts supports, 2, upper vent segment, 3, lower vent segment, 4, spoiler.
Embodiment
A kind of generator unit stator ventilation ducts structure with spoiler 4, comprise that ventilation ducts supports 1, the upper surface of ventilation ducts support 1 is connected with upper vent segment 2, lower surface is connected with lower vent segment 3, on described upper vent segment 2 or lower vent segment 3, be vertically installed with a plurality of spoilers 4, the mobile direction of the windward side of described spoiler 4 and refrigerating gas is perpendicular.
Preferred implementation of the present utility model is, on described upper vent segment 2 and lower vent segment 3, be provided with a plurality of spoilers 4, a plurality of spoilers 4 on described upper vent segment 2 at least form a line on upper vent segment 2 along the mobile direction of refrigerating gas, a plurality of spoilers 4 on described lower vent segment 3 at least form a line on lower vent segment 3 along the mobile direction of refrigerating gas, spoiler 4 on spoiler 4 on described upper vent segment 2 and lower vent segment 3 is symmetrical, and gapped between the spoiler 4 on the spoiler 4 on upper vent segment 2 and lower vent segment 3.Further, described spoiler 4 is trapezium structure, and the bottom connection of the adjacent two row spoilers 4 on same vent segment.It is irregular air channel that such set-up mode makes the air channel in ventilation ducts, when refrigerating gas passes through ventilation ducts, can rapidly refrigerating gas be upset into turbulent flow fluidised form, and can repeated multiple times upset refrigerating gas, guarantee refrigerating gas under identical flow velocity relatively existing structure have higher coefficient of heat transfer.
Claims (4)
- One kind band spoiler (4) generator unit stator ventilation ducts structure, comprise vent segment (2) and lower vent segment (3), it is characterized in that: on described upper vent segment (2) or lower vent segment (3), be vertically installed with a plurality of spoilers (4), the mobile direction of the windward side of described spoiler (4) and refrigerating gas is perpendicular.
- 2. the generator unit stator ventilation ducts structure of a kind of band spoiler as claimed in claim 1 (4), it is characterized in that: on described upper vent segment (2) and lower vent segment (3), be provided with a plurality of spoilers (4), and gapped between the spoiler (4) on upper vent segment (2) and the spoiler (4) on lower vent segment (3).
- 3. the generator unit stator ventilation ducts structure of a kind of band spoiler as claimed in claim 1 or 2 (4), it is characterized in that: a plurality of spoilers (4) on described upper vent segment (2) at least form a line on upper vent segment (2) along the mobile direction of refrigerating gas, a plurality of spoilers (4) on described lower vent segment (3) at least form a line on lower vent segment (3) along the refrigerating gas direction that flows, and the spoiler (4) on upper vent segment (2) and the spoiler (4) on lower vent segment (3) symmetrical.
- 4. the generator unit stator ventilation ducts structure of a kind of band spoiler as claimed in claim 1 (4), is characterized in that: described spoiler (4) is trapezium structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420032682.XU CN203774905U (en) | 2014-01-20 | 2014-01-20 | Generator stator ventilating duct structure with spoiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420032682.XU CN203774905U (en) | 2014-01-20 | 2014-01-20 | Generator stator ventilating duct structure with spoiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203774905U true CN203774905U (en) | 2014-08-13 |
Family
ID=51292054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420032682.XU Expired - Lifetime CN203774905U (en) | 2014-01-20 | 2014-01-20 | Generator stator ventilating duct structure with spoiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203774905U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623391A (en) * | 2016-07-13 | 2018-01-23 | 中车株洲电力机车研究所有限公司 | A kind of motor cooling pipe and forced air cooling motor |
| CN110635587A (en) * | 2018-09-14 | 2019-12-31 | 北京金风科创风电设备有限公司 | Stator assembly and motor having the same |
-
2014
- 2014-01-20 CN CN201420032682.XU patent/CN203774905U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107623391A (en) * | 2016-07-13 | 2018-01-23 | 中车株洲电力机车研究所有限公司 | A kind of motor cooling pipe and forced air cooling motor |
| CN110635587A (en) * | 2018-09-14 | 2019-12-31 | 北京金风科创风电设备有限公司 | Stator assembly and motor having the same |
| CN110635587B (en) * | 2018-09-14 | 2020-12-29 | 北京金风科创风电设备有限公司 | Stator assembly and motor having the same |
| US11552511B2 (en) | 2018-09-14 | 2023-01-10 | Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd. | Stator assembly, electrical motor, wind power generator set and method for cooling stator assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |
|
| CX01 | Expiry of patent term |