CN200978839Y - Vertical multistage pump - Google Patents
Vertical multistage pump Download PDFInfo
- Publication number
- CN200978839Y CN200978839Y CN 200620048500 CN200620048500U CN200978839Y CN 200978839 Y CN200978839 Y CN 200978839Y CN 200620048500 CN200620048500 CN 200620048500 CN 200620048500 U CN200620048500 U CN 200620048500U CN 200978839 Y CN200978839 Y CN 200978839Y
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- CN
- China
- Prior art keywords
- pump body
- pump housing
- flow passage
- outer flow
- reverse
- 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)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The utility model relates to a vertical multistage pump, which is characterized in that a reverse pump body is also arranged in the sealing pump body, impellers and guide blades reversely arranged on the shaft are arranged in the reverse pump body, an outer flow passage is arranged outside the reverse pump body, one end of the outer flow passage is in communication with an outflow end of the forward pump body, the other end of the outer flow passage is in communication with an inflow end of the reverse pump body, an outflow end of the reverse pump body is in communication with an outflow tube. The utility model removes the original balance sleeve, the balance return water pipe and the balancing drum, instead a reverse pump body is arranged, a portion of the impellers are reversely disposed in the reverse pump body, the forward and the reverse pump bodies are connected via the outer flow passage arranged outside of the reverse pump body, thereby achieving the effect of balancing the axial force of the pump through the self effect of the impellers.
Description
Technical field:
The utility model relates to a kind of water pump, particularly a kind of MODEL VERTICAL MULTISTAGE PUMP.
Background technique:
As shown in Figure 1, existing MODEL VERTICAL MULTISTAGE PUMP mainly is made up of inlet segment, balance return pipe, impeller, stage casing, stator, axle, water exit end, balance set, balancing drum, sealed letter body, electric machine support and motor.Because multistage lift of pump height, the axial force that is produced is big, needs balance return pipe, balance set, balancing drum acting in conjunction to come balancing axial thrust.There is following shortcoming in it: balance set and balancing drum are in the process of balancing axial thrust, and it is very fast to wear and tear, and the life-span is short, poor reliability; The balance return pipe stops up easily, causes the effect of balancing drum disequilibrium axial force, because of the axial force of pump is big, causes damage of bearings; Balance return pipe a part of flow that need reflux has influenced the efficient of water pump.
Summary of the invention:
The purpose of this utility model is to provide a kind of novel MODEL VERTICAL MULTISTAGE PUMP, can improve the axial force balance effect of pump, improves the efficient and the reliability of pump.
To achieve these goals, the technical solution of the utility model is as follows: a kind of MODEL VERTICAL MULTISTAGE PUMP, comprise the axle that motor is connected with motor, the shell of motor is connected with electric machine support, the other end of electric machine support is connected with the sealed letter body, the sealed letter body is connected with the forward pump housing, the feed-water end of the forward pump housing is connected with the inlet segment shell, impeller and stator forward in the forward pump housing are arranged on the axle, it is characterized in that also being provided with in the sealed letter body a reverse pump housing, oppositely be provided with impeller and the stator that oppositely is arranged on the axle in the pump housing, the external outer flow passage that is provided with of reversing pump, one end of this outer flow passage is communicated with the waterexit end of the forward pump housing, and the other end of outer flow passage is communicated with the feed-water end of the reverse pump housing, and oppositely the waterexit end of the pump housing is communicated with outlet pipe.
The utility model removes original balance set, balance return pipe and balancing drum, the one reverse pump housing is set, in the reverse pump housing,, and connect the positive and negative pump housing, make pump reach the effect of balancing axial thrust by the impeller self-acting at the external outer flow passage that is provided with of reversing pump with a part of impeller reversed arrangement.
Description of drawings:
Fig. 1 is the prior art constructions schematic representation
Fig. 2 is a structural representation of the present utility model
Embodiment:
Below in conjunction with drawings and Examples the utility model is elaborated.
A kind of MODEL VERTICAL MULTISTAGE PUMP, comprise the axle 8 that motor 10 is connected with motor 10, the shell of motor 10 is connected with an end of electric machine support 9, the other end of electric machine support 9 is connected with sealed letter body 7, sealed letter body 7 is connected with the forward pump housing 2, the feed-water end of the forward pump housing 2 is connected with inlet segment shell 1, impeller 3 in the forward pump housing 2 and stator 4 forwards are arranged on the axle 8, it is characterized in that also being provided with in the sealed letter body 7 a reverse pump housing 6, oppositely be provided with impeller 3 and the stator 4 that oppositely is arranged on the axle 8 in the pump housing 6, oppositely be provided with outer flow passage 11 outside the pump housing 6, one end of this outer flow passage 11 is communicated with the waterexit end of the forward pump housing 2, the other end of outer flow passage 11 is communicated with the feed-water end of the reverse pump housing 6, and oppositely the waterexit end of the pump housing 6 is communicated with outlet pipe 12.In the present embodiment, this outer flow passage 11 is the cavity between the reverse pump housing 6 and the sealed letter body 7.
Water enters in this multistage pump from inlet segment shell 1, by the forward pump housing 2, flows into outer flow passage 11, enters the reverse pump housing 6 through outer flow passage 11, flows out through outlet pipe 12 from the waterexit end of the reverse pump housing 6.According to an embodiment of the present utility model, oppositely the impeller 3 that is provided with is identical with impeller 3 quantity that forward is provided with.
In Fig. 1,5 is water exit end, and 13 is the balance return pipe, 14 is balance set, and 15 is balancing drum, and the utility model removes original balance set 14, balance return pipe 13 and balancing drum 15, with the impeller reversed arrangement of half, and on impeller housing 6 and sealed letter body 7, establish outer flow passage.Because the axial force that the impeller of half produces upwards, the axial force that the impeller of half produces is downward, makes the axial force complete equilibrium of entire pump, and any wearing and tearing do not take place.Therefore improved the reliability of pump and the working life of pump, owing to there has not been the return loss of balance return pipe, therefore can improve pump efficiency 1～3% again.
Claims (2)
1, a kind of MODEL VERTICAL MULTISTAGE PUMP, comprise the axle that motor is connected with motor, the shell of motor is connected with electric machine support, the other end of electric machine support is connected with the sealed letter body, the sealed letter body is connected with the forward pump housing, the feed-water end of the forward pump housing is connected with the inlet segment shell, impeller and stator forward in the forward pump housing are arranged on the axle, it is characterized in that also being provided with in the sealed letter body a reverse pump housing, oppositely be provided with impeller and the stator that oppositely is arranged on the axle in the pump housing, the external outer flow passage that is provided with of reversing pump, an end of this outer flow passage is communicated with the waterexit end of the forward pump housing, the other end of outer flow passage is communicated with the feed-water end of the reverse pump housing, and oppositely the waterexit end of the pump housing is communicated with outlet pipe.
2,, it is characterized in that the impeller that oppositely is provided with is identical with the impeller quantity that forward is provided with by the described MODEL VERTICAL MULTISTAGE PUMP of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620048500 CN200978839Y (en) | 2006-12-04 | 2006-12-04 | Vertical multistage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620048500 CN200978839Y (en) | 2006-12-04 | 2006-12-04 | Vertical multistage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200978839Y true CN200978839Y (en) | 2007-11-21 |
Family
ID=38979216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620048500 Expired - Fee Related CN200978839Y (en) | 2006-12-04 | 2006-12-04 | Vertical multistage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200978839Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852806A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious mine vertical pump capable of being idled and connected in series |
| CN103133359A (en) * | 2011-11-22 | 2013-06-05 | 上海连成（集团）有限公司 | Multilevel submersible sewage pump for large-scale mining |
-
2006
- 2006-12-04 CN CN 200620048500 patent/CN200978839Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852806A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard alloy amphibious mine vertical pump capable of being idled and connected in series |
| CN102852806B (en) * | 2011-06-27 | 2016-02-24 | 王喜冬 | Cemented carbide idle running can be connected amphibious vertical pump for mine |
| CN103133359A (en) * | 2011-11-22 | 2013-06-05 | 上海连成（集团）有限公司 | Multilevel submersible sewage pump for large-scale mining |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20071121 Termination date: 20121204 |