CN203685624U - Centrifugal fan for cooling rectifier cabinet of motor train unit - Google Patents
Centrifugal fan for cooling rectifier cabinet of motor train unit Download PDFInfo
- Publication number
- CN203685624U CN203685624U CN201420079841.1U CN201420079841U CN203685624U CN 203685624 U CN203685624 U CN 203685624U CN 201420079841 U CN201420079841 U CN 201420079841U CN 203685624 U CN203685624 U CN 203685624U
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- impeller
- fan
- side plate
- centrifugal fan
- blade
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- 238000001816 cooling Methods 0.000 title claims abstract description 12
- 238000005457 optimization Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a centrifugal fan for cooling a rectifier cabinet of a motor train unit. The centrifugal fan is a double-impeller double-air-drafting centrifugal fan and comprises air inlet ducts, volutes, impellers, a motor and a fan base. The two volutes are arranged on the centrifugal fan, blades of the impellers are connected with a front wheel disc and a back wheel disc in a riveting mode, and a wheel core is connected with the back wheel disc through a hinge hole bolt. The two impellers are arranged on each centrifugal fan, a double-air-drafting multi-wing type structure is adopted, the number of the air inlet ducts is two, the impellers are of arc-shaped plate multi-wing type forward centrifugal structures, and impeller front discs and impeller back discs are both of slab structures. According to the centrifugal fan, high-strength steel plates are adopted in the base, the material cost is saved under the condition that sufficient rigidity and sufficient strength of the fan are guaranteed, and the weight of the fan is reduced. As the multi-wing type impeller blades have the excellent aerodynamic performance, the optimization configuration is adopted in the air inlet ducts, the impellers and the volutes, optimization design of a volute assembly is adopted, and therefore the airflow noise of the fan is at the minimum level.
Description
Technical field
It is cooling with centrifugal blower that the present utility model relates to a kind of rail motor set rectifier cubicle, and it is a kind of bilobed wheel double suction multiple wing type centrifugal ventilator, belongs to field of fluid machinery.
Background technique
Require low noise, low vibration and the requirement of greater efficiency cooling fan according to rail motor set rectifier cubicle, ventilator is arranged on the interior cooling blower fitting seat of rail motor set rectifier cubicle, by cabinet both sides intake grill air intake, rectifier heating element after centrifugal impeller acting pressurization in cooling cabinet, then discharged by cabinet rear end exhaust port.Requiring compressor flow is 2 × 1500 m
3under/h(standard state); Static pressure is under>=800 Pa(standard state); Noise (sound pressure level) is not more than 83dB(A).Tradition ventilation machine is selected single impeller+single spiral case blower fan pattern conventionally, but this kind of structure can not meet fan interface requirement, and fan performance and noise are also difficult to meet above-mentioned technical specifications.In addition, existing ventilator volume is larger, makes it that difficulty is installed in cabinet small space.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defect, provides a kind of energy consumption low, and noise is low, lightweight, the cooling centrifugal blower of using of rail motor set rectifier cubicle with being convenient to install simple and compact for structure.
The technical solution of the utility model: a kind of rail motor set rectifier cubicle is cooling comprises base, threephase asynchronous, impeller, air inlet duct and spiral case with centrifugal blower, it is characterized in that:
Described this centrifugal blower is a kind of bilobed wheel double suction wind centrifugal blower, and the spiral case in centrifugal blower comprises side plate one, side plate two, top board and outlet(discharge) flange; Wherein, side plate one welds together by top board with side plate two, plays water conservancy diversion, increasing (quiet) pressure; On outlet(discharge) flange, arrange eight waist-shaped holes, transverse holes spacing is 112mm, and longitudinal hole spacing is 120mm, and due to for double volute designs, two outlet(discharge) flanges also come same level position, and its spacing is defined as 116mm;
Described impeller is to be combined by front wheel disc and impeller blade, core wheel and rear trochal disc.Blade in this impeller (7) is forward multiple wing formula centrifugal blade;
Together with described air inlet duct is bolted with spiral case, its end apart from impeller before the axial clearance distance of wheel disc be 3mm;
Described base supports and fixed electrical machinery and two spiral cases, and this base is bolted and is installed on the interior crossbeam of rectifier cubicle, replaceable, and stability under loading, vibrates little, safer.
Described motor is arranged on base plate by bolt, and the axial spacing of the side plate 1 in the front cover of this motor 2 and spiral case 12 is 10mm; The axial spacing of the side plate one in rear end cover and spiral case 13 is 10mm.Of the present utility modelly focus on adopting forward multiple wing centrifugal formula blade, impeller size is limited, for making air velocity distribution optimization, improve compressor flow and pressure, therefore adopt forward multiple wing formula blade wheel structure, blade is circular shape, adopts rational blade outlet angle, make blower fan sound pressure level lower than 83dB(A), vibration velocity is less than 3.6mm/s.Base plate is welded by low-alloy high-strength steel plate, and 4mm thickness of slab ensures enough rigidity and intensity, and compact structure reduces the vibration of blower fan.Spiral case adopts high-quality stainless steel material, and to ensure blower fan integral rigidity and intensity, blower fan is lightweight.Impeller is selected forward centrifugal formula structure, and shroud and hub disk are flat board, and wheel disc and blade adopt riveting method, and twists drilling bolts with four and be connected with core wheel, and preparation process is good.Impeller blade aeroperformance excellence, before air inlet duct, impeller and spiral case inter-module optimized design and impeller, wheel disc and air inlet duct end space configuration optimization have ensured that fan airflow noise reaches floor level.
brief description of the drawings:
Accompanying drawing 1 is structural representation of the present utility model;
embodiment:
With reference to accompanying drawing 1, a kind of rail motor set rectifier cubicle is cooling comprises base 1, threephase asynchronous 2, impeller 7, air inlet duct 9 and spiral case 12 with centrifugal blower, it is characterized in that:
Described this centrifugal blower is a kind of bilobed wheel double suction wind centrifugal blower, and the spiral case 12 in centrifugal blower comprises side plate 1, side plate 2 10, top board 13 and outlet(discharge) flange 11; Wherein, side plate 1 welds together by top board 13 with side plate 2 10, arranges eight waist-shaped holes on outlet(discharge) flange 11, transverse holes spacing is 112mm, and longitudinal hole spacing is 120mm, owing to designing for double volute, two outlet(discharge) flanges also come same level position, and its spacing is defined as 116mm;
Described impeller 7 is to be combined by front wheel disc 6 and impeller blade 5, core wheel 8 and rear trochal disc 4.Blade 5 in this impeller 7 is forward multiple wing formula centrifugal blade;
Together with described air inlet duct 9 is bolted with spiral case 12, its end is 3mm apart from the axial clearance distance of the front wheel disc 6 in impeller 7;
Described base 1 supports and fixed electrical machinery 2 and two spiral cases 12, and this base 1 is bolted and is installed on the interior crossbeam of rectifier cubicle;
Described motor 2 is arranged on base plate 1 by bolt, and the axial spacing of the side plate 1 in the front cover of this motor 2 and spiral case 12 is 10mm; The axial spacing of the side plate one in rear end cover and spiral case 13 is 10mm.
The number of blade of described impeller blade 5 is 42.
The utility model has two spiral cases 12.Impeller blade 5 links together by riveting method and front wheel disc 6, rear trochal disc 4, and 8 of core wheels are connected with rear trochal disc 4 by hinged bolts.Every ventilator has two impellers 7.Because be double suction multiple-airfoil type structure, the quantity of air inlet duct 9 is two, and between air inlet duct 9 and front wheel disc 6, distance is 3mm.
Due to impeller blade 5 aeroperformance excellences, thus between air inlet duct 9, impeller 7 and spiral case assembly 12 before optimized design and impeller wheel disc 6 and air inlet duct 9 end space configuration optimizations ensured that fan airflow noise reaches floor level.
Claims (2)
1. rail motor set rectifier cubicle is cooling comprises base (1), threephase asynchronous (2), impeller (7), air inlet duct (9) and spiral case (12) with a centrifugal blower, it is characterized in that:
Described this centrifugal blower is a kind of bilobed wheel double suction wind centrifugal blower, and the spiral case (12) in centrifugal blower comprises side plate one (3), side plate two (10), top board (13) and outlet(discharge) flange (11); Wherein, side plate one (3) welds together by top board (13) with side plate two (10), eight waist-shaped holes of the upper layout of outlet(discharge) flange (11), transverse holes spacing is 112mm, longitudinal hole spacing is 120mm, due to for double volute designs, two outlet(discharge) flanges come same level position, its spacing is defined as 116mm;
Described impeller (7) is to be combined by front wheel disc (6) and impeller blade (5), core wheel (8) and rear trochal disc (4), and the blade (5) in this impeller (7) is forward multiple wing formula centrifugal blade;
Together with described air inlet duct (9) is bolted with spiral case (12), its end is 3mm apart from the axial clearance distance of the front wheel disc (6) of impeller (7);
Described base (1) supports and fixed electrical machinery (2) and two spiral cases (12), and this base (1) is bolted and is installed on the interior crossbeam of rectifier cubicle;
It is upper that described motor (2) is arranged on base plate (1) by bolt, and the axial spacing of the side plate one (3) in the front cover of this motor (2) and spiral case (12) is 10mm; The axial spacing of the side plate one in rear end cover and spiral case (13) is 10mm.
2. a kind of rail motor set rectifier cubicle as claimed in claim 1 is cooling with centrifugal blower, and the number of blade that it is characterized in that described impeller blade (5) is 42.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420079841.1U CN203685624U (en) | 2014-02-25 | 2014-02-25 | Centrifugal fan for cooling rectifier cabinet of motor train unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420079841.1U CN203685624U (en) | 2014-02-25 | 2014-02-25 | Centrifugal fan for cooling rectifier cabinet of motor train unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685624U true CN203685624U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420079841.1U Expired - Lifetime CN203685624U (en) | 2014-02-25 | 2014-02-25 | Centrifugal fan for cooling rectifier cabinet of motor train unit |
Country Status (1)
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| CN (1) | CN203685624U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638833A (en) * | 2014-12-20 | 2015-05-20 | 重庆德马高速设备研究所 | Integrated parallel heat dissipation device with single air outlet |
| CN104638836A (en) * | 2014-12-20 | 2015-05-20 | 重庆德马高速设备研究所 | Integrated parallel heat dissipation device |
| CN106704246A (en) * | 2016-12-20 | 2017-05-24 | 株洲联诚集团有限责任公司 | Machine frame structure of double-centrifugal-impeller draught fan of high-speed train |
| CN108953175A (en) * | 2018-09-13 | 2018-12-07 | 株洲联诚集团控股股份有限公司 | A kind of motor train unit converter forward multiple wing formula riveting double-impeller centrifugal ventilation blower |
-
2014
- 2014-02-25 CN CN201420079841.1U patent/CN203685624U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638833A (en) * | 2014-12-20 | 2015-05-20 | 重庆德马高速设备研究所 | Integrated parallel heat dissipation device with single air outlet |
| CN104638836A (en) * | 2014-12-20 | 2015-05-20 | 重庆德马高速设备研究所 | Integrated parallel heat dissipation device |
| CN106704246A (en) * | 2016-12-20 | 2017-05-24 | 株洲联诚集团有限责任公司 | Machine frame structure of double-centrifugal-impeller draught fan of high-speed train |
| CN106704246B (en) * | 2016-12-20 | 2022-08-16 | 湖南联诚轨道装备有限公司 | Rack structure of high-speed train double-centrifugal-impeller fan |
| CN108953175A (en) * | 2018-09-13 | 2018-12-07 | 株洲联诚集团控股股份有限公司 | A kind of motor train unit converter forward multiple wing formula riveting double-impeller centrifugal ventilation blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230630 Address after: No. 66 and 68 Liancheng Road, Shifeng District, Zhuzhou City, Hunan Province, 412000 Patentee after: HUNAN LINCE ROLLING STOCK EQUIPMENT Co.,Ltd. Address before: 412000 technical management department, Lianxin group, Tianxin north gate, Shifeng District, Zhuzhou, Hunan Patentee before: ZHUZHOU LINCE GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
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| CX01 | Expiry of patent term |