CN2900872Y - Double pressure double flow fan - Google Patents
Double pressure double flow fan Download PDFInfo
- Publication number
- CN2900872Y CN2900872Y CN 200620041692 CN200620041692U CN2900872Y CN 2900872 Y CN2900872 Y CN 2900872Y CN 200620041692 CN200620041692 CN 200620041692 CN 200620041692 U CN200620041692 U CN 200620041692U CN 2900872 Y CN2900872 Y CN 2900872Y
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- CN
- China
- Prior art keywords
- casing
- impeller
- disposed
- air
- movable vane
- 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 relates to a double pressure double flow rate blower comprising a casing, an electric motor disposed outside of the casing, a rotating shaft disposed in the casing, a fixed impeller disposed on the rotating shaft, the two sides of the fixed impeller is provided with a first step movable impeller and a second step movable impeller and an inlet opening disposed on the casing, which is characterized in that the first step movable impeller is the wide impeller, the second step movable impeller is the thin impeller, the big outlet opening is disposed on the casing behind the first step movable impeller, the small outlet opening is disposed on the casing behind the second step movable impeller. The utility model has the advantages that the atomizing throwaway air of the high wind pressure low input air and the combustion over-fire air of the low wind pressure high input air can be supported by the device, the power consumption and the electrical energy can be reduced, and the noise of the blower working can be reduced by the structure.
Description
Technical field
The utility model relates to a kind of blower fan, and being used for industrial combustion furnace specifically is the blower fan of fuel oil low-pressure air atomising burner air feed.
Background technique
Conventional low-pressure air atomising burner needs the air of 5～8Kpa high pressure as the atomizing primary air, and air quantity does not at this moment need very big.And the combustion-supporting secondary air that burner combustion needs is generally the low-pressure air of 2～3Kpa, and needs big air quantity.For simplified apparatus, one typhoon machine generally only is installed on a furnace apparatus, and this typhoon machine is for needs that satisfy the high blast atomizing of few air quantity primary air and the needs of taking into account the big air quantity combustion air of low pressure, must use multistage big air quantity high pressure positive blower, reach high blast, the output power of fan motor will inevitably strengthen, energy consumption is also with regard to corresponding increase, and the most of air quantity in the high blast blower fan, the final combustion-supporting secondary air that also will be used as low blast, obviously, such application of blower fan is very irrational, and power consumption is too much.
The model utility content
Technical problem to be solved in the utility model provides a kind of pair of pressure double fluid amount blower fan, this blower fan can provide the atomizing primary air of the low air quantity of high blast and the combustion-supporting secondary air of the high air quantity of low blast simultaneously, to reduce power consumption and to save electric energy, overcome the deficiency that prior art exists.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopted is:
A kind of pair of pressure double fluid amount blower fan, comprise casing, be arranged on the outer motor of casing, be arranged on the rotating shaft in the casing, the fixing intake grill on the first order movable vane of impeller both sides wheel, second level movable vane wheel and the casing in fixedly impeller in the rotating shaft, the rotating shaft, it is characterized in that: described first order movable vane wheel is wide impeller, and movable vane wheel in the second level is taken turns for narrow leaf, be positioned on the casing behind the first order movable vane wheel and have big exhaust outlet, be positioned on the casing behind the movable vane wheel of the second level and have little exhaust outlet.
First order movable vane wheel adopts technique scheme, owing to can produce big air quantity for wide impeller, and its exhaust outlet is bigger, have only the one-level impeller to boost again, just can not produce big blast, the final atomizing primary air that satisfies the big requirement of the little air quantity of blast that produces; And second level movable vane wheel is the narrow leaf wheel, and the air that the enters casing back of further boosting produces the little air quantity of high pressure, by little exhaust outlet outflow, has produced the combustion-supporting secondary air that satisfies the little requirement of the big air quantity of blast at last.As calculated and measuring point, the blower fan of this spline structure power consumption when air feed descends 40%.
Therefore, the utlity model has atomizing primary air and the combustion-supporting secondary air of the high air quantity of low blast that the low air quantity of high blast is provided simultaneously, with the advantage that reduces power consumption and save electric energy, and the structure of this blower fan has also reduced the noise of fan operation.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is elaborated:
Fig. 1 is a structural representation of the present utility model.
Embodiment
A kind of pair of pressure double fluid amount blower fan comprises casing 1 as shown in Figure 1, the casing 1 outer motor 2 that is equipped with, rotating shaft 3 is arranged in the casing 2, in the fixedly impeller 4 that is equipped with in the rotating shaft 3, the rotating shaft fixedly impeller 4 both sides first order movable vane wheel 5, second level movable vane wheel 6 and the intake grill 7 that has on the casing 1 be installed.Described first order movable vane wheel 5 be wide impeller, and movable vane wheel in the second level is narrow leaf wheel 6, is positioned on the casing 1 behind the first order movable vane wheel 5 to have big exhaust outlet 8, has little exhaust outlet 9 on 6 the casing 1 after being positioned at second level movable vane and taking turns.
Claims (1)
1, a kind of pair of pressure double fluid amount blower fan, comprise casing (1), be arranged on the outer motor (2) of casing (1), be arranged on the rotating shaft (3) in the casing (1), fixedly impeller (4) in the rotating shaft (3), the fixedly first order movable vane wheel (5) of impeller (4) both sides is gone up in rotating shaft (3), intake grill (7) on second level movable vane wheel (5) and the casing, it is characterized in that: described first order movable vane wheel (5) is wide impeller, second level movable vane wheel (6) is the narrow leaf wheel, be positioned on the casing (1) behind the first order movable vane wheel (5) and have big exhaust outlet (8), be positioned on the casing (1) behind the second level movable vane wheel (6) and have little exhaust outlet (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620041692 CN2900872Y (en) | 2006-05-11 | 2006-05-11 | Double pressure double flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620041692 CN2900872Y (en) | 2006-05-11 | 2006-05-11 | Double pressure double flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2900872Y true CN2900872Y (en) | 2007-05-16 |
Family
ID=38085035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620041692 Expired - Fee Related CN2900872Y (en) | 2006-05-11 | 2006-05-11 | Double pressure double flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2900872Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842518A (en) * | 2017-12-06 | 2018-03-27 | 陆勇 | A kind of centrifugal blower and air cleaning facility |
-
2006
- 2006-05-11 CN CN 200620041692 patent/CN2900872Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842518A (en) * | 2017-12-06 | 2018-03-27 | 陆勇 | A kind of centrifugal blower and air cleaning facility |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ALM INDUSTRIAL FURNACE MANUFACTURE SHANGHAI CO., LTD. Assignor: Liu Rongzhang Contract fulfillment period: 2007.5.26 to 2015.5.26 Contract record no.: 2008310000283 Denomination of utility model: Double pressure double flow fan Granted publication date: 20070516 License type: Exclusive license Record date: 20081211 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.5.26 TO 2015.5.26; CHANGE OF CONTRACT Name of requester: SHANGHAI AILUMI INDUSTRY FURNACE MANUFACTURING CO. Effective date: 20081211 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070516 Termination date: 20120511 |