CN1288348C - Pipe double axial-flow impeller - Google Patents
Pipe double axial-flow impeller Download PDFInfo
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- CN1288348C CN1288348C CN 03116696 CN03116696A CN1288348C CN 1288348 C CN1288348 C CN 1288348C CN 03116696 CN03116696 CN 03116696 CN 03116696 A CN03116696 A CN 03116696A CN 1288348 C CN1288348 C CN 1288348C
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- blade
- centrifugal
- impeller
- disc
- flow
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Abstract
The present invention relates to a pipe double axial-flow impeller which comprises a centrifugal blade, a front disc, an axial flow blade, a back disc and an axle sleeve. The front disc is connected with the back disc via the centrifugal blade and the axial flow blade, the shaft sleeve is welded at a center of the back disc, axial reflection parts are respectively added on the front disc and the back disc and extend to an air outlet of the impeller, and the centrifugal blade is in front of the axial flow blade. A flow path formed by the front disc and the back disc of the impeller comprises three sections, a centrifugal blade section, an axial flow blade section and a middle section, wherein the centrifugal blade section is similar to a centrifugal fan; in the axial flow blade section, the front disc and the back disc of the impeller are respectively used as a shell and a wheel hub of an axial flow fan so as to form an annular path; the middle section is formed between the centrifugal blade and the axial flow blade, and the middle section can be large or small according to requirements and even can cancel the middle section according to reducing the distance between the centrifugal blade and the axial flow blade.
Description
Technical field:
What the present invention relates to is a kind of Pipe double axial-flow impeller, and particularly a kind of impeller that is useful in conveying gas in the pipeline belongs to field of fluid machinery.
Background technique:
In prior art, in the pipeline delivery air use very generally pipeline centrifugal blower or pipeline axial flow (oblique flow) blower fan.The installation shaft flow fan is to the airflow influence minimum in pipeline, but because the blast that the pipe axis flow fan produces is too low, makes its application be subjected to very big restriction.When in pipeline centrifugal blower being installed dual mode is arranged, 1. the impeller center line is vertical with conduit axis; 2. the impeller center is concentric with conduit axis.Under first kind of situation, air-flow has 90 ° turns back at the impeller inlet place, lost a part of blast; Under second kind of situation, air-flow has 90 ° turns back at the impeller outlet place, makes the advantage of centrifugal blower finely not bring into play.When pipe resistance was big, the throughput of conveying did not satisfy requirement.The patent No. is 92228886.0, and name is called the patent of " two-sided blade impeller ", and it is " to have increased one group of blade newly on the paddle wheel plane near this end of shaft coupling hole.Former being trapped in is difficult for the liquid of draining and just produces centrifugal force and in time drained under the effect of newly-increased blade in the pump case." this mainly is a kind of impeller of carrying liquid, and the blade that increases is mainly at the shaft coupling nose end, thereby can not give ducted liquid adherence pressure.The patent No. is 01260051.2, name is called the patent of " impeller that is used for boosting centrifugal blower ", " side of impeller is a blade, and the opposite side of impeller is provided with auxiliary blade ", because auxiliary blade is in " space between casing group inwall ", thereby does not play adherence pressure.
Summary of the invention:
Deficiency and the defective of the present invention in order to overcome prior art increases the blast of air-flow when flowing through impeller, overcomes the bigger resistance of pipeline, satisfies the throughput that must carry in the pipeline.Therefore constructed a kind of simple in structurely, can overcome ventilating machinary---the Pipe double axial-flow impeller of big resistance during work.This impeller mainly is made up of shroud, hub disk, axle sleeve, centrifugal blade and axial blade etc.Shroud couples together by centrifugal blade and axial blade and hub disk, and axle sleeve then is welded on back disk center.Shroud and hub disk are all different with traditional form, because air-flow is turned back after leaving centrifugal blade, flow vertically, so shroud and hub disk have all increased to the axial part of turning back, extend to the impeller outlet place always.Centrifugal blade is in the air-flow upstream, and axial blade is in airflow downstream.Therefore the runner of impeller shroud and hub disk formation comprises three sections, and is in the centrifugal blade section, similar with centrifugal blower; In the axial blade section, the shroud of impeller and hub disk play a part the shell and the wheel hub of axial-flow blower respectively, have formed an annular pass; Part between centrifugal blade and the axial blade has formed intermediate section, and this section is changeable as required.Because in Pipe double axial-flow impeller, centrifugal blade and axial blade increase energy to air-flow simultaneously, make air-flow have enough energy to overcome ducted flow losses.
The present invention is easy to use, has use value.
The drawings and the specific embodiments:
Fig. 1 is the Pipe double axial-flow impeller structure principle chart, and 1 is centrifugal blade, the 2nd among the figure, shroud, the 3rd, axial blade, the 4th, hub disk, the 5th, axle sleeve, the 6th, intake grill, the 7th, exhaust outlet.
Below in conjunction with accompanying drawing concrete enforcement of the present invention is further described:
As shown in Figure 1, Pipe double axial-flow impeller mainly comprises centrifugal blade 1, shroud 2, axial blade 3, hub disk 4 and axle sleeve 5.Shroud 2 couples together with hub disk 4 by centrifugal blade 1 and axial blade 3, and 5 on axle sleeve is welded on hub disk 4 centers.Shroud 2 and hub disk 4 are all different with traditional form, turn back because air-flow leaves centrifugal blade 1 back, flow vertically, so shroud 2 and hub disk 4 have all increased to the axial part of turning back, extend to impeller exhaust outlet 7 places always.Centrifugal blade 1 is in the air-flow upstream, and axial blade 3 is in airflow downstream.Therefore the runner of impeller shroud 2 and hub disk 4 formation comprises three sections, and is 1 section of centrifugal blade, similar with centrifugal blower; 3 sections of axial blades, the shroud 2 of impeller and hub disk 4 play a part the shell and the wheel hub of axial-flow blower respectively, have formed an annular pass; Part between centrifugal blade 1 and the axial blade 3 has formed intermediate section, and this section is changeable as required.
When Pipe double axial-flow impeller is worked under motor driving, air-flow sucks from intake grill 6, the centrifugal blade 1 of flowing through, radially throw away in the centrifugal action downstream, the axial blade 3 of flowing through after turning back, the pressure loss that the energy that air-flow is obtained through axial blade 3 is enough to overcome air-flow when turning back flows out impellers from exhaust outlet 7 at last.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116696 CN1288348C (en) | 2003-04-29 | 2003-04-29 | Pipe double axial-flow impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116696 CN1288348C (en) | 2003-04-29 | 2003-04-29 | Pipe double axial-flow impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1445462A CN1445462A (en) | 2003-10-01 |
| CN1288348C true CN1288348C (en) | 2006-12-06 |
Family
ID=27814919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03116696 Expired - Fee Related CN1288348C (en) | 2003-04-29 | 2003-04-29 | Pipe double axial-flow impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1288348C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362857A (en) * | 2012-03-30 | 2013-10-23 | 华硕电脑股份有限公司 | Impeller and fan |
| CN103470530B (en) * | 2013-09-06 | 2015-04-15 | 广州市高晟染整设备有限公司 | Three-stage convection type impeller of convection type water pump and working method thereof |
| CN106704260B (en) * | 2016-09-12 | 2023-08-22 | 东莞市卓奇电子科技有限公司 | multi-stage cascade turbine |
| CN112065749B (en) * | 2020-09-14 | 2021-09-24 | 德州丙田机电科技有限公司 | an impeller |
| CN112268008B (en) * | 2020-10-14 | 2024-07-02 | 广东顺威精密塑料股份有限公司 | Combined fan |
| CN112177974A (en) * | 2020-10-27 | 2021-01-05 | 德州明联空调设备有限公司 | Centrifugal impeller of direct current cylinder and fan |
-
2003
- 2003-04-29 CN CN 03116696 patent/CN1288348C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1445462A (en) | 2003-10-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20061206 |