CN101644268B - Centrifugal pump - Google Patents
Centrifugal pump Download PDFInfo
- Publication number
- CN101644268B CN101644268B CN2009101158045A CN200910115804A CN101644268B CN 101644268 B CN101644268 B CN 101644268B CN 2009101158045 A CN2009101158045 A CN 2009101158045A CN 200910115804 A CN200910115804 A CN 200910115804A CN 101644268 B CN101644268 B CN 101644268B
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- CN
- China
- Prior art keywords
- pump
- stage casing
- pump housing
- shaft
- water
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- 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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Abstract
The invention discloses a centrifugal pump which has the advantages of convenient installation and maintenance, small value, high efficiency and low failure rate. The centrifugal pump comprises a pump spindle and a bearing seat, wherein the bearing seat is provided with a cooling cavity which is respectively connected with a first stage middle section of a pump body and a flange connecting pipe of a water inlet section by connecting pipes; and the part of the pump spindle from the connecting part between the pump spindle and a first stage impeller to one end where the pump spindle is connected with a motor is an equant section.
Description
Technical field:
The present invention relates to a kind of water pump, relate in particular to a kind of centrifugal pump.
Background technique:
Its transmission part of existing water pump does not all have effective cooling unit, thereby the operation troubles rate height of water pump, and rotatable parts damage because of overheated easily, normal operation of influence and working life.And the MODEL VERTICAL MULTISTAGE PUMP of using at present exists rotating speed low, and operational efficiency is low, and power consumption is high, and volume is big, and it is many to manufacture the required raw material of water pump, the manufacture cost height.And existing vertical multi-stage centrifugal pump pump shaft is provided with the step section that is used for the impeller installing and locating, installing and water pump need being turned around just and can carry out during maintenance, causes the installation and maintenance difficulty.
Summary of the invention:
The objective of the invention is the problem at the prior art existence, a kind of centrifugal pump is provided, these centrifugal pump installation and maintenance are convenient, the operational efficiency height, and rate of fault is low, and energy consumption is low, and volume is little.
Technological scheme of the present invention comprises the pump housing, impeller, pump shaft, bearing means, the described pump housing is to comprise a plurality of stage casings and lay respectively at the multistage pump housing that a plurality of impellers in the corresponding stage casing constitute, the bearing support of described bearing means is provided with cooling chamber, and the first order stage casing of the described multistage pump housing and inlet segment or first order stage casing and inlet segment flange are taken over respectively through connecting tube and be connected in cooling chamber on the bearing support.
Described pump shaft is isometrical section from it with impeller joint a to end that is connected with motor or an end that is connected with the pump housing.
The pump shaft of the described multistage pump housing is isometrical section from it with first order impeller joint a to end that is connected with motor or an end that is connected with the multistage pump housing.
The described a plurality of stage casing wherein stage casing more than two or two is respectively equipped with water outlet.
The end face of each the mutual corresponding joint between each described stage casing, between corresponding stage casing and the water-in and water-out section is respectively the stepped shape end face.
Be provided with rubber pad or paper washer between the described stepped shape end face that every two-phase mutual connection closes.
The axle sleeve of described pump shaft adopts corrosion-proof wear-resistant material to manufacture; The tie-plate of pump shaft and motor shaft tie-plate interconnect by pin and rubber washer.
The described pump housing or the multistage pump housing are connected in the drive motor that rotating speed is 2800～3200r/min by pump shaft, and the axle sleeve of described pump shaft adopts stainless steel to manufacture.
The present invention can reduce bearing temperature owing to be provided with cooling unit, reduces rate of fault.The rotating speed height, the operational efficiency height, energy consumption is low, can economize on electricity more than 30%, and volume is little, low cost of manufacture.Installation and maintenance are convenient, only need from top to down dismounting step by step during maintenance, and need not the water pump dismounting maintenance again that reverses.Can utilize single pump to realize that multi-outlet multitube road layer and section supplies water simultaneously according to water supply requirement simultaneously.Being in transmission connection of the motor and the pump housing is safe and reliable.
Description of drawings:
Figure is the structural representation of centrifugal pump of the present invention.
Embodiment:
Now also the invention will be further described in conjunction with the accompanying drawings by embodiment.As shown in the figure, present embodiment is one by three water-in and water-out oral-laterals that connect successively, that lay respectively at pump and stage casing 5a, 5c and 5b therebetween, the water-in and water-out section 1,7 that is connected with 5c with the stage casing 5a of corresponding water-in and water-out oral-lateral respectively, with three impellers 3, stator 4 and the spacer 6 that lay respectively in three stage casing 5a, 5c and the 5b, vertical three grades of centrifugal pumps that pump shaft 2 grades constitute.Motor 14 is positioned at pump housing top and is in transmission connection by coupling and pump shaft 2, and the motor shaft tie-plate 19 of coupling and pump shaft tie-plate 20 interconnect by pin 21 and rubber washer 22.The below of the pump housing is an inlet segment 1, water from the water intake 15 of inlet segment 1 by entering first and second and third level stage casing 5a, 5b and 5c inner chamber from bottom to top successively as three impellers, 3 effects of first and second and the third level respectively, last from water outlet 12 outputs that are positioned at pump housing water exit end 7 top, that be located at third level stage casing 5c.
With inlet segment 1 one ends that are positioned at the pump housing, be isometrical section 2a (this isometrical section 2a that is pump shaft 2 do not have the radially step section of protrusion) as the joint of an impeller 3a of the first order to one section pump shaft 2 of an end that is connected with motor 14, impellers 3 at different levels like this and corresponding part thereof can the free disassemble or assemble on this isometrical section 2a of pump shaft 2 from the top.
Inlet segment 1 and water exit end 7 respectively with corresponding stage casing 5a, 5c between, two stepped shape end faces 23 that constitute by the two-stage table top respectively of mutual corresponding joint between each corresponding stage casing 5a, 5b and the 5c, protruding under the inboard table top of one of them stepped shape end face 23, the outside table top epirelief of another stepped shape end face 23 is provided with paper sealing gasket 24 between the inboard table top of two stepped shape end faces 23 that are bonded with each other.The upper and lower axle sleeve 25 of pump shaft 2 adopts the stainless steel of anticorrosion antiwear to manufacture.
The rotating speed of the water pump in the present embodiment is 2950r/min.
In another embodiment of the present invention, be positioned at the stage casing, the second level at pump housing middle part and the third level stage casing on top and respectively be provided with a water outlet.
Claims (8)
1. centrifugal pump, comprise the pump housing, impeller, pump shaft, bearing means, the described pump housing is to comprise a plurality of stage casings and lay respectively at the multistage pump housing that a plurality of impellers corresponding stage casing in constitute, and the bearing support of described bearing means is provided with cooling chamber, it is characterized in that the first order stage casing of the described multistage pump housing and inlet segment or first order stage casing and the adapter of inlet segment flange are connected in cooling chamber on the bearing support through connecting tube respectively.
2. according to the described centrifugal pump of claim 1, it is characterized in that described pump shaft is isometrical section from it with impeller joint a to end that is connected with motor or an end that is connected with the pump housing.
3. according to the described centrifugal pump of claim 1, it is characterized in that the pump shaft of the described multistage pump housing is isometrical section from it with first order impeller joint a to end that is connected with motor or an end that is connected with the multistage pump housing.
4. according to the described centrifugal pump of claim 1, it is characterized in that described a plurality of stage casing wherein is respectively equipped with water outlet in the stage casing more than two or two.
5. according to claim 1 or 4 described centrifugal pumps, it is characterized in that between each described stage casing, the end face of each the mutual corresponding joint between corresponding stage casing and the water-in and water-out section is respectively the stepped shape end face.
6. according to the described centrifugal pump of claim 5, it is characterized in that being provided with rubber pad or paper washer between the described stepped shape end face that every two-phase mutual connection closes.
7. according to claim 1,2 or 3 described centrifugal pumps, it is characterized in that the axle sleeve of described pump shaft adopts corrosion-proof wear-resistant material to manufacture; The tie-plate of pump shaft and motor shaft tie-plate interconnect by pin and rubber washer.
8. according to the described centrifugal pump of claim 1, it is characterized in that the described pump housing or the multistage pump housing are connected in the drive motor that rotating speed is 2800～3200r/min by pump shaft, the axle sleeve of described pump shaft adopts stainless steel to manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101158045A CN101644268B (en) | 2009-08-21 | 2009-08-21 | Centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101158045A CN101644268B (en) | 2009-08-21 | 2009-08-21 | Centrifugal pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101644268A CN101644268A (en) | 2010-02-10 |
| CN101644268B true CN101644268B (en) | 2011-05-18 |
Family
ID=41656277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101158045A Expired - Fee Related CN101644268B (en) | 2009-08-21 | 2009-08-21 | Centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101644268B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102954006A (en) * | 2011-08-16 | 2013-03-06 | 上海佰诺泵阀有限公司 | Low-noise horizontal chemical shielding pump |
| CN102536876A (en) * | 2012-01-18 | 2012-07-04 | 合肥三益江海泵业有限公司 | Water pump rotating shaft supporting device for multistage centrifugal pump |
| CN102536842A (en) * | 2012-01-18 | 2012-07-04 | 合肥三益江海泵业有限公司 | Dry type-wet type dual-purpose pump unit |
| CN105443399B (en) * | 2016-01-07 | 2018-11-06 | 上海电气凯士比核电泵阀有限公司 | A kind of certainly cooling electronic auxiliary feed water pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29817337U1 (en) * | 1998-09-26 | 1998-12-17 | Grundfos As | Centrifugal pump of the inline design for pumping hot liquids |
| CN2434451Y (en) * | 2000-07-18 | 2001-06-13 | 上海凯泉泵业（集团）有限公司 | Ease-to-repair vertical multi-stage centrifugal pump |
| CN201330753Y (en) * | 2008-12-30 | 2009-10-21 | 四川胜达泵业设备制造有限公司 | Self-cooling structure of multi-stage centrifugal pump |
-
2009
- 2009-08-21 CN CN2009101158045A patent/CN101644268B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29817337U1 (en) * | 1998-09-26 | 1998-12-17 | Grundfos As | Centrifugal pump of the inline design for pumping hot liquids |
| CN2434451Y (en) * | 2000-07-18 | 2001-06-13 | 上海凯泉泵业（集团）有限公司 | Ease-to-repair vertical multi-stage centrifugal pump |
| CN201330753Y (en) * | 2008-12-30 | 2009-10-21 | 四川胜达泵业设备制造有限公司 | Self-cooling structure of multi-stage centrifugal pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101644268A (en) | 2010-02-10 |
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|---|---|---|---|
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20200821 |