CN2903487Y - Centrifugal air blast machine - Google Patents
Centrifugal air blast machine Download PDFInfo
- Publication number
- CN2903487Y CN2903487Y CN 200620032140 CN200620032140U CN2903487Y CN 2903487 Y CN2903487 Y CN 2903487Y CN 200620032140 CN200620032140 CN 200620032140 CN 200620032140 U CN200620032140 U CN 200620032140U CN 2903487 Y CN2903487 Y CN 2903487Y
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- CN
- China
- Prior art keywords
- fixed
- boss
- fore
- impeller
- bearing
- 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 - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a centrifugal blower, comprising a shell, a rotating shaft, a fore bearing, a fore boss, an air inlet, a rear blade wheel chamber, an air outlet, a rear blade wheel, a rear boss, a rear bearing and a shaft coupling, wherein the rotating shaft is supported by the for bearing and the rear bearing, and the fore boss and the rear boss are fixed on the rotating shaft. The rear blade wheel is fixed on the rear boss also in the rear blade wheel chamber which is a chamber constituted by the combination of the fore blade wheel chamber and a diverter, and the fore boss is fixed on the rotating shaft and positioned in the hollow chamber, also a counterweight body with the weight of the counterweight body being suitable with the weight of the rear blade wheel is fixed on the fore boss. The utility model has the advantages of small wind resistance, high efficiency, electric energy saving, and the like.
Description
Technical field:
The utility model relates to the ventilation apparatus that a kind of gas producer uses, and specifically is the centrifugal blower of a kind of air feed pressure less than 30000Pa.
Background technique:
Gas producer need utilize blower to impel coal fully to burn, and centrifugal blower mainly is the high speed rotating that relies on impeller, makes air under action of centrifugal force, is discharged for stove wind by exhaust outlet.Present centrifugal blower mainly is made of casing, intake grill, exhaust outlet, preceding impeller cavity, preceding impeller, back impeller cavity, back impeller, rotatingshaft, coupling etc., preceding impeller is fixed on the rotatingshaft and is arranged in preceding impeller cavity, back impeller is fixed on the rotatingshaft and is arranged in the back impeller cavity, intake grill is communicated with preceding impeller cavity, exhaust outlet is communicated with the back impeller cavity, preceding impeller cavity with afterwards be communicated with by fluid director between the impeller cavity.During work, the rotatingshaft high speed rotating, air is entered through preceding impeller by intake grill and quickens, flow through fluid director through after impeller further quicken the back and discharge by exhaust outlet, under the less demanding situation of air feed pressure, because fluid director is one 180 ° a turning channel, cause gas flow that certain resistance is arranged, cause the blower pressure loss bigger, institute's gas-distributing motor power increases, and power consumption is higher.
The model utility content:
The purpose of this utility model provides that a kind of air feed resistance is less, efficient is higher, saves the centrifugal blower of electric energy.
To achieve these goals, the utility model comprises: casing, rotatingshaft, fore bearing, front hub, intake grill, back impeller cavity, exhaust outlet, back impeller, rear-wheel hub, rear bearing, coupling, rotatingshaft is supported by fore bearing and rear bearing, front hub and rear-wheel hub are fixed on the rotatingshaft, back impeller is fixed on the rear-wheel hub and is arranged in the back impeller cavity, it is that preceding impeller cavity and fluid director are merged cavity of formation, front hub is fixed on the rotatingshaft and is arranged in cavity, is fixed with on front hub and the suitable balance weight body of back impeller weight.Like this, when gas producer air feed pressure requirement condition is not high, under the situation of not carrying out the complete machine replacing, impeller and fluid director before removing, under the high speed rotating of rotatingshaft, air is entered by intake grill, through cavity by after impeller directly quicken, discharge by exhaust outlet then, air flows is smooth and easy, can reach using effect through the local flow improvement to former blower fan, can satisfy gas producer air feed needs, save the replacing transformation funds greatly, had characteristics such as windage is less, efficient is higher, saving electric energy.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is an internal cross section structural representation of the present utility model.
Embodiment:
As shown in Figure 1, the utility model comprises: casing 1, rotatingshaft 3, fore bearing 4, front hub 5, intake grill 7, back impeller cavity 9, exhaust outlet 10, back impeller 11, rear-wheel hub 12, rear bearing 13, coupling 14, rotatingshaft 3 is supported by fore bearing 4 and rear bearing 13, fore bearing 4 is by fore bearing support 2 fixed supports, and rear bearing 13 is by rear bearing rack 15 fixed supports.Front hub 5 is fixed on the rotatingshaft 3 with rear-wheel hub 12, and back impeller 11 is fixed on the rear-wheel hub 12 and is arranged in back impeller cavity 9.Preceding impeller cavity and fluid director are merged cavity 8 of formation, front hub 5 is fixed on the rotatingshaft 3 and is arranged in cavity 8, on front hub 5, be fixed with and the suitable balance weight body 6 of back impeller 11 weight, do not change original balance quality, to guarantee the blower fan smooth operation.The length scale of back impeller is with when rotating, and can satisfy to reach the requirement of air feed pressure and get final product.
Claims (1)
1, a kind of centrifugal blower, comprise: casing (1), rotatingshaft (3), fore bearing (4), front hub (5), intake grill (7), back impeller cavity (9), exhaust outlet (10), back impeller (11), rear-wheel hub (12), rear bearing (13), coupling (14), rotatingshaft (3) is supported by fore bearing (4) and rear bearing (13), front hub (5) is fixed on the rotatingshaft (3) with rear-wheel hub (12), back impeller (11) is fixed on the rear-wheel hub (12) and is arranged in back impeller cavity (9), it is characterized in that preceding impeller cavity and fluid director are merged a formation cavity (8), front hub (5) is fixed on the rotatingshaft (3) and is arranged in cavity (8), is fixed with on front hub (5) and the back suitable balance weight body of impeller (11) weight (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620032140 CN2903487Y (en) | 2006-05-31 | 2006-05-31 | Centrifugal air blast machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620032140 CN2903487Y (en) | 2006-05-31 | 2006-05-31 | Centrifugal air blast machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2903487Y true CN2903487Y (en) | 2007-05-23 |
Family
ID=38078898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620032140 Expired - Fee Related CN2903487Y (en) | 2006-05-31 | 2006-05-31 | Centrifugal air blast machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2903487Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374176A (en) * | 2010-08-26 | 2012-03-14 | 中意机电(湖北)鼓风机制造有限公司 | Centrifugal blower of single-stage gas-making furnace |
-
2006
- 2006-05-31 CN CN 200620032140 patent/CN2903487Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374176A (en) * | 2010-08-26 | 2012-03-14 | 中意机电(湖北)鼓风机制造有限公司 | Centrifugal blower of single-stage gas-making furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070523 Termination date: 20100531 |