CN202628532U - Forced air cooling high-pressure Roots fan - Google Patents
Forced air cooling high-pressure Roots fan Download PDFInfo
- Publication number
- CN202628532U CN202628532U CN 201220186998 CN201220186998U CN202628532U CN 202628532 U CN202628532 U CN 202628532U CN 201220186998 CN201220186998 CN 201220186998 CN 201220186998 U CN201220186998 U CN 201220186998U CN 202628532 U CN202628532 U CN 202628532U
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- China
- Prior art keywords
- fan
- bearing
- forced air
- air cooling
- cooling high
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- 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 - Fee Related
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Abstract
The utility model provides a forced air cooling high-pressure Roots fan and belongs to the field of Roots fan cooling technologies. The forced air cooling high-pressure Roots fan comprises a wall board on a fan casing, wherein a rotor shaft is arranged in a wall board hole through a bearing and a bearing seat. The forced air cooling high-pressure Roots fan is characterized in that a fan blade sleeved on the rotor shaft and rotating along with the rotor shaft synchronously is arranged between the bearing seat and the wall board, the air outlet direction of the fan blade faces the bearing direction, and the wall board is provided with an air flow channel communicated with the outside. By arranging the fan blade, the fan casing and the bearing are cooled by utilizing circulating air, and a range of a normal work temperature of the high-pressure Roots air blower is ensured. The forced air cooling high-pressure Roots fan is simple in structure, saves water resources and reduces operation cost and engineering construction cost.
Description
Technical field
The utility model relates to a kind of forced air cooling high pressure roots blower fan, belongs to roots blower cooling technology field.
Background technique
Roots blower is the volume rotary blower, utilizes leaf rotor in cylinder, to compress with conveying gas do relative movement.On casing, for lubricating bearings, adopted bearing housing is the structure of fuel tank to two ends of rotor through roller bearings, and lubricating system is splash system lubrication, plays the effect of cooling bearing simultaneously.Utilize air-cooled fuel tank just can satisfy Roots blower normal working temperature scope for the Roots blower of general pressure below 58kpa; When pressure is worth greater than this, generally need the water-cooled fuel tank, promptly have the Roots blower of constituent; Utilize water circulate to the cooling of bearing and casing, this need increase water circulation system, causes product structure complicated thus; Waste water resource increases operating cost and engineering construction cost.
The model utility content
The technical assignment of the utility model is to above-mentioned deficiency of the prior art a kind of forced air cooling high pressure roots blower fan to be provided, and this roots blower is when providing 98.8kpa pressure, and its cooling structure only needs air-cooled, to overcome the drawback that adopts water-cooled to bring.
The utility model solves the technological scheme that its technical problem adopted: forced air cooling high pressure roots blower fan; Comprise the wallboard on the Blower Housing; Rotor shaft is arranged in the wallboard hole through bearing and bearing support, it is characterized in that, between bearing support and wallboard, is provided with to be placed on the rotor shaft and with the rotor shaft fan blade of rotation synchronously; The air-out direction of said fan blade is provided with on wallboard and the extraneous air-flow path that communicates towards the bearing direction.
Described fan blade is provided with a connecting sleeve, and the two ends of said connecting sleeve lay respectively in bearing support and the wallboard, and connecting sleeve is connected with the rotor axle key.
The thin end of described bearing support is positioned at fan blade.
Owing to adopt technique scheme, the utlity model has following outstanding beneficial effect:
1, the utility model utilizes circulating wind to force cooling blower housing and bearing owing to be provided with fan blade, has guaranteed high pressure roots blower normal working temperature scope.
2, experiment proof: with existing NSR_H-150 blower fan contrast, under identical operating mode (rotating speed 1480r/min, pressure are 98.8kpa) without water-cooled, lubricating oil temperature＜65 ℃ meet the requirement of technical standard.
3, this product structure is simple, has practiced thrift water resources, has reduced operating cost and engineering construction cost.
Description of drawings
Accompanying drawing 1 is the main TV structure schematic representation of the utility model.
Description of reference numerals: 1 wallboard, 2 rotor shafts, 3 fan blades, 31 connecting sleeves, 4 bearing supports, 41 bearing supports are carefully held, 5 bearings.
Embodiment
As shown in Figure 1, forced air cooling high pressure roots blower fan comprises the wallboard 1 on the Blower Housing, and rotor shaft 2 is arranged in the wallboard hole through bearing 5 and bearing support 4.
Between bearing support 4 and wallboard 1, be axially arranged with and be placed on the rotor shaft 2 and with the rotor shaft fan blade 3 of rotation synchronously, the air-out direction of said fan blade is provided with the air-flow path that communicates with the external world towards the bearing direction on wallboard.Described air-flow path comprises introduces ambient air, in cooling blower housing wallboard, under the effect of fan blade, wind is cooled off to 4 pairs of bearing supports of bearing support 4 and bearing 5, and then row is to whole air path part in the external world.This air-flow path can be provided with technical measures such as guiding gutter and pod apertures and realize on wallboard.
Described fan blade 3 is provided with a connecting sleeve 31, and the two ends of said connecting sleeve 31 lay respectively in bearing support and the wallboard, and connecting sleeve is connected with the rotor axle key.
The thin end 41 of bearing support is positioned at fan blade, to improve the cooling effect and saving space to bearing support.
During work, rotor shaft drives the fan blade rotation, realizes forced convection through air-flow path, reaches the pressure cooling to bearing and Blower Housing.
The utility model is not limited to the foregoing description.
Claims (3)
1. forced air cooling high pressure roots blower fan; Comprise the wallboard on the Blower Housing; Rotor shaft is arranged in the wallboard hole through bearing and bearing support, it is characterized in that, between bearing support and wallboard, is provided with to be placed on the rotor shaft and with the rotor shaft fan blade of rotation synchronously; The air-out direction of said fan blade is provided with on wallboard and the extraneous air-flow path that communicates towards the bearing direction.
2. forced air cooling high pressure roots blower fan according to claim 1 is characterized in that described fan blade is provided with a connecting sleeve, and the two ends of said connecting sleeve lay respectively in bearing support and the wallboard, and connecting sleeve is connected with the rotor axle key.
3. forced air cooling high pressure roots blower fan according to claim 2 is characterized in that, the thin end of described bearing support is positioned at fan blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186998 CN202628532U (en) | 2012-04-28 | 2012-04-28 | Forced air cooling high-pressure Roots fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220186998 CN202628532U (en) | 2012-04-28 | 2012-04-28 | Forced air cooling high-pressure Roots fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202628532U true CN202628532U (en) | 2012-12-26 |
Family
ID=47381737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220186998 Expired - Fee Related CN202628532U (en) | 2012-04-28 | 2012-04-28 | Forced air cooling high-pressure Roots fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202628532U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619754A (en) * | 2012-04-28 | 2012-08-01 | 山东三牛机械有限公司 | Forced air cooling high-pressure Roots blower |
-
2012
- 2012-04-28 CN CN 201220186998 patent/CN202628532U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619754A (en) * | 2012-04-28 | 2012-08-01 | 山东三牛机械有限公司 | Forced air cooling high-pressure Roots blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20160428 |