CN101644268A - Centrifugal pump - Google Patents
Centrifugal pump Download PDFInfo
- Publication number
- CN101644268A CN101644268A CN200910115804A CN200910115804A CN101644268A CN 101644268 A CN101644268 A CN 101644268A CN 200910115804 A CN200910115804 A CN 200910115804A CN 200910115804 A CN200910115804 A CN 200910115804A CN 101644268 A CN101644268 A CN 101644268A
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- China
- Prior art keywords
- pump
- stage casing
- pump housing
- water
- shaft
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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.)
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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 pumpspindle 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 ofa 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 connectedwith 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, and pump shaft, bearing means, described bearing means is provided with cooling chamber.
Described cooling chamber is located on the bearing support of bearing means, and cooling chamber is connected to the water-in and water-out side of impeller on the pump housing.
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 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, and 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 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 are connected in cooling chamber on the bearing support.
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 described each 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 described pump shaft and motor shaft tie-plate interconnect by pin and rubber washer.
The described pump housing is 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 stage casings 5 that connect successively, respectively the water-in and water-out section 1,7 that is connected with corresponding stage casing 5 and lay respectively at three impellers 3, stator 4 and spacer 6 in three stage casings 5, vertical three grades of centrifugal pumps of formation such as pump shaft 2 grades.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 5 inner chambers 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 5.
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.
Cooling chamber 9 is made of the inside and outside sidewall of bearing support 8, the relative both sides of cooling chamber 9 are connected in the stage casing 5 of the first order of the pump housing and the flange of inlet segment 1 takes over 16 through connecting tube 10 respectively, by connecting tube 10 press water of stage casing 5 inner chambers of the first order is introduced cooling chamber 9 and be back to the cooling that circulates of 15 pairs of bearing meanss of water intake again, with the operating temperature of reduction bearing.
Inlet segment 1 and water exit end 7 respectively with corresponding stage casing 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 5, 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 (10)
1, a kind of centrifugal pump comprises the pump housing, impeller, and pump shaft, bearing means is characterized in that described bearing means is provided with cooling chamber.
2, according to the described centrifugal pump of claim 1, it is characterized in that described cooling chamber is located on the bearing support of bearing means, cooling chamber is connected to the water-in and water-out side of impeller on the pump housing.
3,, 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 according to the described centrifugal pump of claim 1.
4, according to claim 1 or 2 described centrifugal pumps, it is characterized in that 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 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.
5,, 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 inlet segment flange are taken over respectively through connecting tube to be connected in cooling chamber on the bearing support according to the described centrifugal pump of claim 4.
6,, 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 according to the described centrifugal pump of claim 4.
7,, it is characterized in that between described each 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 according to the described centrifugal pump of claim 4.
8,, 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 according to the described centrifugal pump of claim 7.
9,, it is characterized in that the axle sleeve of described pump shaft adopts corrosion-proof wear-resistant material to manufacture according to claim 1 or 4 described centrifugal pumps; The tie-plate of described pump shaft and motor shaft tie-plate interconnect by pin and rubber washer.
10, according to claim 1 or 4 described centrifugal pumps, it is characterized in that the described pump housing is 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 true CN101644268A (en) | 2010-02-10 |
| CN101644268B 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) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102954006A (en) * | 2011-08-16 | 2013-03-06 | 上海佰诺泵阀有限公司 | Low-noise horizontal chemical shielding pump |
| CN105443399A (en) * | 2016-01-07 | 2016-03-30 | 上海电气凯士比核电泵阀有限公司 | Self-cooling electric auxiliary water feeding pump |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29817337U1 (en) * | 1998-09-26 | 1998-12-17 | Grundfos A/S, Bjerringbro | 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
Cited By (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 |
| CN105443399A (en) * | 2016-01-07 | 2016-03-30 | 上海电气凯士比核电泵阀有限公司 | Self-cooling electric auxiliary water feeding pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101644268B (en) | 2011-05-18 |
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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 |
Granted publication date: 20110518 Termination date: 20200821 |
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| CF01 | Termination of patent right due to non-payment of annual fee |