CN103511325A - Desulphurization pump impeller of novel structure - Google Patents
Desulphurization pump impeller of novel structure Download PDFInfo
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- CN103511325A CN103511325A CN201210197853.XA CN201210197853A CN103511325A CN 103511325 A CN103511325 A CN 103511325A CN 201210197853 A CN201210197853 A CN 201210197853A CN 103511325 A CN103511325 A CN 103511325A
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- impeller
- blades
- covering board
- blade
- shroud
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Abstract
The invention relates to a desulphurization pump impeller of a novel structure. The desulphurization pump impeller comprises an impeller rear covering board, blades and an impeller front covering board. The desulphurization pump impeller is characterized in that the blades are provided with front covering board secondary blades and rear covering board secondary blades, the impeller rear covering board and the impeller front covering board are provided with blade grooves, each front covering board secondary blade and each rear covering board secondary blade which are both arranged on the blades are located on the front side and the rear side of each blade respectively, and the front covering board secondary blades and the rear covering board secondary blades stretch out of the impeller front covering board and the impeller rear covering board respectively; the blades, the impeller rear covering board and the impeller front covering board are connected with one another in a welded mode; an impeller hub inner hole is an unthreaded hole. The desulphurization pump impeller of the novel structure has the advantages that the front covering board, the rear covering board and the blades are mutually independent, and therefore the front covering board, the rear covering board and the blades can be manufactured independently and made of different materials; when the blades are damaged, the blades can be replaced independently, the whole impeller does not need to be replaced, and the blades of the impeller are provided with the front secondary blades and the rear secondary blades so that axial force can be balanced.
Description
Technical field
The present invention relates to a kind of desulfurized pump impeller of new structure.
Background technique
For traditional desulfurized pump impeller, it is mostly the structural type of continuing to use Ordinary Centrifugal Pumps impeller, for front shroud, back shroud and blade casting all-in-one-piece enclosed construction (as shown in Figure 1), the drawback of the impeller of this structure is listed as follows: impeller channel is casting formation, poor surface smoothness, efficiency is lower; Cast inblock structure, casting deviation is large, and dimensional accuracy is low; Cast inblock structure, size deviation is large, and intensity is low, therefore need stay larger size surplus, waste of material; Whole impeller can only be a kind of material, and cost is high; The blade of desulfurized pump impeller easily damages, and just needs to change whole impeller, thereby cause the waste of material once blade damages, and maintenance cost is high; Adopt equalizing orifice balancing axial thrust, counterbalance effect is poor, and affects the flowing state of impeller inlet, and efficiency is low; Impeller hub endoporus is screw thread, and screw thread is high with respect to unthreaded hole processing request, requires to make dedicated tool and measurer, and processing cost is high; Impeller is scyewed joint with connecting of axle, and assembling and dismounting are more difficult, thereby assembly cost and maintenance cost are higher.
Summary of the invention
The object of the invention is to solve existing the problems referred to above of desulfurized pump impeller in prior art, a kind of desulfurized pump impeller of new structure is provided, the present invention designs a kind of desulfurized pump impeller of new structure, comprise back shroud of impeller, blade, front shroud of impeller, it is characterized in that: on blade, be provided with front shroud back blades and back shroud back blades, on back shroud of impeller and front shroud of impeller, offer blade groove, in the impeller channel that blades installation forms between back shroud of impeller and front shroud of impeller, be arranged on the both sides, front and back that front shroud back blades on blade and back shroud back blades lay respectively at blade, front shroud back blades and back shroud back blades stretch out respectively front shroud of impeller and back shroud of impeller.It is characterized in that: blade is welded to each other and is connected with front shroud of impeller with back shroud of impeller.It is characterized in that: impeller hub endoporus is unthreaded hole.Advantage of the present invention is that front shroud, back shroud and the blade of this new structure impeller is separate, thereby can make separately and adopt different materials; The inner flow passage of the blade of impeller, front shroud and back shroud all can adopt digital control processing, thereby can guarantee the degree of finish on impeller channel surface, and dimensional accuracy is high; Because impeller blade is independent of whole impeller, when blade damages, just can change separately blade rather than change whole impeller, impeller hub endoporus is unthreaded hole, is easy to processing, and convenient for assembly and dismounting; Before and after the blade of impeller has, back blades can balancing axial thrust; good balance effect; and the existence of front and back back blades can well balance impeller inlet pressure and back shroud of impeller outside be the pressure of Seal cage, thereby effectively protect impeller and mechanical seal, improve working life.
Accompanying drawing explanation
Fig. 1 is the structure front schematic view of prior art, the texture edge schematic diagram that Fig. 2 is prior art.
Fig. 3 is structure front schematic view of the present invention, the AA generalized section that Fig. 4 is Fig. 3, the rear view that Fig. 5 is Fig. 3.
1, back shroud of impeller, 2, blade, 3, front shroud of impeller, 4, front shroud back blades, 5, back shroud back blades, 6, impeller hub endoporus.
Embodiment
Figure comprises back shroud of impeller, blade, front shroud of impeller, it is characterized in that: on blade, be provided with front shroud back blades and back shroud back blades, on back shroud of impeller and front shroud of impeller, offer blade groove, in the impeller channel that blades installation forms between back shroud of impeller and front shroud of impeller, be arranged on the both sides, front and back that front shroud back blades on blade and back shroud back blades lay respectively at blade, front shroud back blades and back shroud back blades stretch out respectively front shroud of impeller and back shroud of impeller.It is characterized in that: blade is welded to each other and is connected with front shroud of impeller with back shroud of impeller.It is characterized in that: impeller hub endoporus is unthreaded hole.
Back shroud of impeller and front shroud of impeller are not fragile, can adopt the material of lower requirement to be made, and blade is fragile, can adopt the material of high requirement to be made, and the inner flow passage of back shroud of impeller and front shroud of impeller and blade can adopt digital control processing.Effect and advantage that desulfurized pump impeller can reach are listed below:
The first, back shroud of impeller and front shroud of impeller and blade are separate, can select different materials, thereby reduce the waste of material;
The second, the inner flow passage of back shroud of impeller and front shroud of impeller and blade all can adopt digital control processing, thereby can guarantee the degree of finish on impeller channel surface, and dimensional accuracy is high, and efficiency is high;
The 3rd, the blade of impeller is independent of whole impeller, just can change separately blade rather than change whole impeller, thereby be difficult for causing the waste of material when blade damages, and maintenance cost is low;
The 4th, the blade of impeller is independent of whole impeller, can select different materials according to medium or customer requirement, facilitates easy-to-usely can not cause waste of material again;
The 5th, the blade of impeller has front shroud back blades and back shroud back blades can balancing axial thrust, good balance effect, and the existence of front shroud back blades and back shroud back blades can well balance impeller inlet pressure and back shroud of impeller outside be the pressure of Seal cage, thereby effectively protect impeller and mechanical seal, improve working life;
The 6th, impeller hub endoporus is unthreaded hole, is easy to processing, and convenient for assembly and dismounting.
Claims (3)
1. the desulfurized pump impeller of a new structure, comprise back shroud of impeller, blade, front shroud of impeller, it is characterized in that: on blade, be provided with front shroud back blades and back shroud back blades, on back shroud of impeller and front shroud of impeller, offer blade groove, in the impeller channel that blades installation forms between back shroud of impeller and front shroud of impeller, be arranged on the both sides, front and back that front shroud back blades on blade and back shroud back blades lay respectively at blade, front shroud back blades and back shroud back blades stretch out respectively front shroud of impeller and back shroud of impeller.
2. by the desulfurized pump impeller of a kind of new structure claimed in claim 1, it is characterized in that: blade is welded to each other and is connected with front shroud of impeller with back shroud of impeller.
3. by the desulfurized pump impeller of a kind of new structure claimed in claim 1, it is characterized in that: impeller hub endoporus is unthreaded hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210197853.XA CN103511325A (en) | 2012-06-15 | 2012-06-15 | Desulphurization pump impeller of novel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210197853.XA CN103511325A (en) | 2012-06-15 | 2012-06-15 | Desulphurization pump impeller of novel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103511325A true CN103511325A (en) | 2014-01-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210197853.XA Pending CN103511325A (en) | 2012-06-15 | 2012-06-15 | Desulphurization pump impeller of novel structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN103511325A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654473A (en) * | 2014-11-21 | 2015-05-27 | 西宁科进工业设计有限公司 | Car-mounted compact-structure air purifier |
| CN106321505A (en) * | 2015-06-30 | 2017-01-11 | 上海梅山钢铁股份有限公司 | Adjustable single suction pump impeller suitable for multiple working conditions and machining method |
| CN106438458A (en) * | 2016-12-27 | 2017-02-22 | 安特洛(福安市)电机有限公司 | Closed type and semi-open type mixed impeller structure of centrifugal pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2632523A1 (en) * | 1976-07-20 | 1978-01-26 | Lederle Pumpen & Maschf | Centrifugal pump with shaft seal - has auxiliary blades on back of impeller disc to improve sealing |
| CN2818864Y (en) * | 2005-07-22 | 2006-09-20 | 浙江工业大学 | Impeller |
| CN101787983A (en) * | 2010-03-12 | 2010-07-28 | 肖琼 | Wear-resistant impeller of vane-type pump |
| CN201546970U (en) * | 2009-12-07 | 2010-08-11 | 石家庄强大泵业集团有限责任公司 | Desulfuration pump |
| CN201582191U (en) * | 2009-12-01 | 2010-09-15 | 上海连成（集团）有限公司 | Novel structure of low-specific speed impeller |
| CN101963163A (en) * | 2010-11-12 | 2011-02-02 | 合肥大元泵业股份有限公司 | Welded impeller of canned motor pump used for central air conditioner |
-
2012
- 2012-06-15 CN CN201210197853.XA patent/CN103511325A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2632523A1 (en) * | 1976-07-20 | 1978-01-26 | Lederle Pumpen & Maschf | Centrifugal pump with shaft seal - has auxiliary blades on back of impeller disc to improve sealing |
| CN2818864Y (en) * | 2005-07-22 | 2006-09-20 | 浙江工业大学 | Impeller |
| CN201582191U (en) * | 2009-12-01 | 2010-09-15 | 上海连成（集团）有限公司 | Novel structure of low-specific speed impeller |
| CN201546970U (en) * | 2009-12-07 | 2010-08-11 | 石家庄强大泵业集团有限责任公司 | Desulfuration pump |
| CN101787983A (en) * | 2010-03-12 | 2010-07-28 | 肖琼 | Wear-resistant impeller of vane-type pump |
| CN101963163A (en) * | 2010-11-12 | 2011-02-02 | 合肥大元泵业股份有限公司 | Welded impeller of canned motor pump used for central air conditioner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654473A (en) * | 2014-11-21 | 2015-05-27 | 西宁科进工业设计有限公司 | Car-mounted compact-structure air purifier |
| CN106321505A (en) * | 2015-06-30 | 2017-01-11 | 上海梅山钢铁股份有限公司 | Adjustable single suction pump impeller suitable for multiple working conditions and machining method |
| CN106438458A (en) * | 2016-12-27 | 2017-02-22 | 安特洛(福安市)电机有限公司 | Closed type and semi-open type mixed impeller structure of centrifugal pump |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140115 |
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| WD01 | Invention patent application deemed withdrawn after publication |