CN204239320U - Sectional type multi-stage pump water exit end double-entry impeller structure - Google Patents
Sectional type multi-stage pump water exit end double-entry impeller structure Download PDFInfo
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- CN204239320U CN204239320U CN201420651845.2U CN201420651845U CN204239320U CN 204239320 U CN204239320 U CN 204239320U CN 201420651845 U CN201420651845 U CN 201420651845U CN 204239320 U CN204239320 U CN 204239320U
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- Prior art keywords
- double
- impeller
- exit end
- entry impeller
- water exit
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Abstract
The utility model discloses a kind of sectional type multi-stage pump water exit end double-entry impeller structure, comprise main shaft, be set in the bearing support on main shaft, described main shaft is arranged with symmetrical double-entry impeller, be provided with stator and impeller to the bilateral symmetry of described double-entry impeller, described stator connects described impeller and feed-water end successively, and described feed-water end is fixed by stuffing seal and bearing support, described double-entry impeller is provided with helical water exit end, described helical and inlet segment UNICOM.The utility model adopts helical water exit end to improve the water outlet efficiency of waterpower; Adopt double-entry impeller symmetrically, be provided with stator and impeller to the bilateral symmetry of double-entry impeller, there is the effect of balancing axial thrust; Symmetrical entrance point is adopted to make monolateral flow be 1/2 of total discharge; Adopt double-entry impeller, increase one times in the situation down-off meeting identical lift, meet the user demand that the large discharge of user is high-lift.
Description
Technical field
The utility model relates to multistage pump apparatus field, specifically a kind of sectional type multi-stage pump water exit end double-entry impeller structure.
Background technique
Existing sectional type multi-stage pump water exit end many employings annular pumping chamber, this annular pumping chamber is larger relative to its hydraulic loss of spiral pressurized water chamber; Use annular pumping chamber can produce very large radial force under design conditions simultaneously; Sectional type multi-stage pump is when needs reach more high-lift in addition, and flow can be subject to certain restrictions.
Model utility content
The purpose of this utility model is the defect overcoming above-mentioned prior art, provides a kind of and improves utilization ratio in water, can the sectional type multi-stage pump water exit end double-entry impeller structure of balancing axial thrust preferably.
The technical solution of the utility model is achieved in that sectional type multi-stage pump water exit end double-entry impeller structure, comprise main shaft, be set in the bearing support on main shaft, described main shaft is arranged with symmetrical double-entry impeller, be provided with stator, impeller and feed-water end to the bilateral symmetry of described double-entry impeller, and described stator, impeller and feed-water end are linked in sequence successively, described feed-water end is fixed by stuffing seal and bearing support, described double-entry impeller is provided with helical water exit end, described helical water exit end and inlet segment UNICOM.
Particularly, described inlet segment, water exit end are connected by turnbuckle with bearing support.
The utility model beneficial effect is the water outlet efficiency adopting helical water exit end to improve waterpower; Adopt double-entry impeller symmetrically, be provided with stator and impeller to the bilateral symmetry of described double-entry impeller, there is the effect of balancing axial thrust; Symmetrical entrance point is adopted to make monolateral flow be 1/2 of total discharge; Water exit end adopts double-entry impeller, increases one times, meet the user demand that the large discharge of user is high-lift in the situation down-off meeting identical lift.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is overall structure side view of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, concrete case study on implementation of the present utility model is illustrated:
As depicted in figs. 1 and 2, sectional type multi-stage pump water exit end double-entry impeller structure, comprises main shaft 1, is set in the bearing support 2 on main shaft 1, and described main shaft 1 and bearing support 2 all adopt metal material to make.Described main shaft 1 is arranged with symmetrical double-entry impeller 6, described double-entry impeller 6 bilateral symmetry be provided with stator 8, impeller 5 and feed-water end 3, described stator 8, impeller 5 and feed-water end 3 are linked in sequence successively, described stator 8, impeller 5 and feed-water end 3 symmetry properties ground is arranged, effectively balance axial force, adopt symmetrical entrance point 3 to make monolateral flow be 1/2 of total discharge simultaneously, adopt symmetrical double-entry impeller 6, increase one times in the situation down-off meeting identical lift, meet the user demand that the large discharge of user is high-lift.
Preferably, described feed-water end 3 is by stuffing seal (packing seal, refer to be woven by the wire of softness form, that foursquare bar fills in seal chamber by sectional area, thus realize sealing) 9 to seal with bearing support 2, described double-entry impeller 6 is provided with helical water exit end 7, and described helical water exit end 7 and inlet segment 3 UNICOM, adopt helical water exit end 7 to improve the water outlet efficiency of waterpower.Particularly, described inlet segment 7, water exit end 3 are connected by turnbuckle 4 with bearing support 2.
As described above, be only preferred embodiment of the present utility model, when can not limit the scope of the utility model enforcement with this, namely the simple equivalence change generally done according to the utility model claim and model utility description with modify, all still belong in scope that the utility model patent contains.
Claims (2)
1. sectional type multi-stage pump water exit end double-entry impeller structure, comprise main shaft, be set in the bearing support on main shaft, it is characterized in that, described main shaft is arranged with symmetrical double-entry impeller, be provided with stator, impeller and feed-water end to the bilateral symmetry of described double-entry impeller, described stator, impeller and feed-water end are linked in sequence successively, described feed-water end is fixed by stuffing seal and bearing support, described double-entry impeller is provided with helical water exit end, described helical water exit end and inlet segment UNICOM.
2. sectional type multi-stage pump water exit end double-entry impeller structure as claimed in claim 1, it is characterized in that, described inlet segment, water exit end are connected by turnbuckle with bearing support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651845.2U CN204239320U (en) | 2014-10-27 | 2014-10-27 | Sectional type multi-stage pump water exit end double-entry impeller structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420651845.2U CN204239320U (en) | 2014-10-27 | 2014-10-27 | Sectional type multi-stage pump water exit end double-entry impeller structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239320U true CN204239320U (en) | 2015-04-01 |
Family
ID=52768823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420651845.2U Active CN204239320U (en) | 2014-10-27 | 2014-10-27 | Sectional type multi-stage pump water exit end double-entry impeller structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239320U (en) |
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2014
- 2014-10-27 CN CN201420651845.2U patent/CN204239320U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Guo Juan Document name: Notification of Passing Examination on Formalities |