CN203926121U - A kind of novel pipeline punch multiple-stage centrifugal pump - Google Patents
A kind of novel pipeline punch multiple-stage centrifugal pump Download PDFInfo
- Publication number
- CN203926121U CN203926121U CN201420276333.2U CN201420276333U CN203926121U CN 203926121 U CN203926121 U CN 203926121U CN 201420276333 U CN201420276333 U CN 201420276333U CN 203926121 U CN203926121 U CN 203926121U
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- CN
- China
- Prior art keywords
- centrifugal pump
- corrosion resistant
- housing
- pump shaft
- resistant plate
- 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 - Lifetime
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000007797 corrosion Effects 0.000 claims abstract description 16
- 238000005260 corrosion Methods 0.000 claims abstract description 16
- 238000004663 powder metallurgy Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000465 moulding Methods 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of novel pipeline punch multiple-stage centrifugal pump, described centrifugal pump comprises housing, in described housing, be provided with pump shaft, described pump shaft is provided with impeller, stator and stage casing, described housing is provided with water inlet-outlet segment, described impeller comprises that one by the stamping forming plain vane of corrosion resistant plate, described blade is provided with by the stamping forming plane front shroud of corrosion resistant plate with by the stamping forming plane back shroud of corrosion resistant plate, is welded with the deflector of being convenient to water quality circulation in housing on described stage casing.That the utility model is made is simple, low cost of manufacture, greatly improved working efficiency.
Description
Technical field
The utility model relates to a kind of centrifugal pump, is specifically related to a kind of novel pipeline punch multiple-stage centrifugal pump.
Background technique
Referring to Fig. 1 and Fig. 2, the front shroud 101 of pipeline punch multiple-stage centrifugal pump impeller of the prior art and back shroud 102 are all curved surface, and blade 103 is twisted blade.
Referring to Fig. 3, pump shaft is provided with back-up ring 104.
The said goods has following defect:
(1) because front shroud of impeller 101 and back shroud 102 are curved surfaces, the manufacture difficulty of press tool is very large, and is difficult to moulding, and shape after moulding also cannot ensure.
(2) because impeller blade 103 is twisted blades, the manufacture difficulty of press tool is very large, and is difficult to moulding, and shape after moulding also cannot ensure.
(3) back-up ring 104 on pump shaft is generally that back-up ring 104 is set in groove, thereby is fixed on pump shaft by a groove is set on pump shaft, but stress easily concentrates on groove, easily causes off-axis.
Model utility content
The problem that the utility model exists in order to solve above-mentioned centrifugal pump, thus a kind of novel pipeline punch multiple-stage centrifugal pump is provided.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of novel pipeline punch multiple-stage centrifugal pump, described centrifugal pump comprises housing, in described housing, be provided with pump shaft, described pump shaft is provided with impeller, stator and stage casing, described housing is provided with water inlet-outlet segment, described impeller comprises that one by the stamping forming plain vane of corrosion resistant plate, and described blade is provided with by the stamping forming plane front shroud of corrosion resistant plate with by the stamping forming plane back shroud of corrosion resistant plate, is welded with the deflector of being convenient to water quality circulation in housing on described stage casing.
In a preferred embodiment of the present utility model, described pump shaft is provided with an interstage sleeve.
In a preferred embodiment of the present utility model, described interstage sleeve is cylindrical powder metallurgy pipe, and the mouth of pipe of described interstage sleeve matches with pump shaft, and described interstage sleeve is fixed on pump shaft.
In a preferred embodiment of the present utility model, described deflector is by corrosion resistant plate impact briquetting, and described deflector is corresponding with the water outlet of water inlet-outlet segment.
By technique scheme, the beneficial effects of the utility model are:
That the utility model is made is simple, low cost of manufacture, greatly improved working efficiency.
The utility model, by replacing back-up ring by interstage sleeve, has greatly reduced the appearance of off-axis.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the sectional view of existing impeller;
Fig. 2 is existing vaned sectional view;
Fig. 3 is the sectional view of existing multistage centrifugal pump;
Fig. 4 is sectional view of the present utility model;
The sectional view of the impeller that Fig. 5 provides for the utility model;
The sectional view of the blade that Fig. 6 provides for the utility model;
The sectional view in the stage casing that Fig. 7 provides for the utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 4, a kind of novel pipeline punch multiple-stage centrifugal pump that the utility model provides, it comprises a housing 200, is provided with pump shaft 210 in housing 200, and pump shaft 210 is provided with impeller 220, stator 230 and stage casing 240, and housing 200 is provided with water inlet-outlet segment 250.
Referring to Fig. 5 and Fig. 6, impeller 220 comprises blade 221, front shroud 222 and back shroud 223.
Blade 221 is cylindrical, by corrosion resistant plate impact briquetting.
Because blade 221 entirety are cylindrical, be regular shape plane, while manufacture by press tool like this, can greatly reduce manufacture difficulty, and also be easy to moulding, the shape after moulding is also easy to ensure.
In addition, because blade 221 entirety are cylindrical, for regular shape plane, make like this runner smoother, can reduce water conservancy loss, improve pump efficiency.
Moreover because blade 221 adopts corrosion resistant plate impact briquetting, can alleviate like this overall weight of impeller 220, reduce wall thickness and reduce production costs.
In order to match with the shape of blade 221, the front shroud 222 and the back shroud 223 that are arranged on blade 221 are plane, and also by corrosion resistant plate impact briquetting.
Like this, because front shroud 222 and back shroud 223 are plane, be regular shape plane, make like this runner smoother between front shroud 222 and back shroud 223 and blade 221, can reduce water conservancy loss, improve pump efficiency.
Moreover because front shroud 222 and back shroud 223 adopt corrosion resistant plate impact briquetting, can alleviate like this overall weight of impeller 220, reduce wall thickness and reduce production costs.
Referring to Fig. 4, a sheathed interstage sleeve 300 also on pump shaft 210.
Interstage sleeve 300, it is for substituting back-up ring, avoids stress to concentrate, and reduces the generation of off-axis situation.
The interstage sleeve 300 that the utility model provides, specifically can be a cylindrical powder metallurgy pipe, and the internal diameter of interstage sleeve is provided with the spline matching with pump shaft 210, and be assembled to the end, utilize like this spline to coordinate with pump shaft 210, can be by sheathed interstage sleeve 300 and be fixed on pump shaft 210, prevent from sliding on pump shaft 210.
So just on pump shaft 210, groove not being set places back-up ring, makes the stress of pump shaft 210 more even, has reduced the generation of off-axis situation.
Referring to Fig. 7, in addition, on stage casing, be also welded with deflector 400, can form a new multistage stamping pump stage casing.
Deflector 400, corresponding with the water outlet of water inlet-outlet segment, it is to be convenient to the interior water quality circulation of housing 200, makes current more smooth and easy, improves hydraulic efficiency.
Deflector 400 is specially hollow cylindrical, adopts corrosion resistant plate impact briquetting, can further strengthen like this water quality circulation.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (4)
1. a novel pipeline punch multiple-stage centrifugal pump, described centrifugal pump comprises housing, in described housing, be provided with pump shaft, described pump shaft is provided with impeller, stator and stage casing, described housing is provided with water inlet-outlet segment, it is characterized in that, described impeller comprises that one by the stamping forming plain vane of corrosion resistant plate, described blade is provided with by the stamping forming plane front shroud of corrosion resistant plate with by the stamping forming plane back shroud of corrosion resistant plate, is welded with the deflector of being convenient to water quality circulation in housing on described stage casing.
2. a kind of novel pipeline punch multiple-stage centrifugal pump according to claim 1, is characterized in that, is arranged with an interstage sleeve on described pump shaft.
3. a kind of novel pipeline punch multiple-stage centrifugal pump according to claim 2, is characterized in that, described interstage sleeve is cylindrical powder metallurgy pipe, and the mouth of pipe of described interstage sleeve matches with pump shaft, and described interstage sleeve is fixed on pump shaft.
4. a kind of novel pipeline punch multiple-stage centrifugal pump according to claim 1, is characterized in that, described deflector is by corrosion resistant plate impact briquetting, and described deflector is corresponding with the water outlet of water inlet-outlet segment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276333.2U CN203926121U (en) | 2014-05-27 | 2014-05-27 | A kind of novel pipeline punch multiple-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276333.2U CN203926121U (en) | 2014-05-27 | 2014-05-27 | A kind of novel pipeline punch multiple-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926121U true CN203926121U (en) | 2014-11-05 |
Family
ID=51821940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420276333.2U Expired - Lifetime CN203926121U (en) | 2014-05-27 | 2014-05-27 | A kind of novel pipeline punch multiple-stage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926121U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757554A (en) * | 2018-07-25 | 2018-11-06 | 上海中韩杜科泵业制造有限公司 | A kind of water pump vane blade |
-
2014
- 2014-05-27 CN CN201420276333.2U patent/CN203926121U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757554A (en) * | 2018-07-25 | 2018-11-06 | 上海中韩杜科泵业制造有限公司 | A kind of water pump vane blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141105 |