CN1888442A - Improved multi-stage centrifugal pump - Google Patents
Improved multi-stage centrifugal pump Download PDFInfo
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- CN1888442A CN1888442A CN 200610029579 CN200610029579A CN1888442A CN 1888442 A CN1888442 A CN 1888442A CN 200610029579 CN200610029579 CN 200610029579 CN 200610029579 A CN200610029579 A CN 200610029579A CN 1888442 A CN1888442 A CN 1888442A
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- centrifugal pump
- multistage centrifugal
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Abstract
The present invention belongs to the field of centrifugal pump technology, in particular, it relates to a medium-pressure horizontal improved multistage centrifugal pump. It includes suction section, intermediate section and discharge section, in the pump body are set pump shaft, guide blade, blade wheel, bearing body and seal body, and shaft coupling, motor, suction hole and discharge hole. Said invention also provides the connection mode of all the above-mentioned portions and the concrete working principle of said multistage centrifugal pump and its application range.
Description
[technical field]
The present invention relates to the centrifugal pump technical field, particularly a kind of middle horizontal modified model multistage centrifugal pump of pressing.
[background technique]
The pump shaft of existing multistage centrifugal pump is generally fixed installation, can not change the direction of pump shaft, and motor also is a fixed in position; Used bearing support foundry goods and bearing only limit to the grease lubrication structure, or the thin oil lubricant structure, and both can not be general.In addition, the shaft seal structure that is arranged in suction casing and Spit Section can not be changed: the stage casing at each grade does not have seal arrangement, causes inter-stage to produce thus and leaks.
[summary of the invention]
Task of the present invention provides a kind of improved middle horizontal multi-stage centrifugal pump of pressing, it has solved that the pump shaft direction of existing multistage centrifugal pump can not be changed, motor can only be installed in the suction side, bearing support foundry goods and bearing can not be general in grease lubrication structure and thin oil lubricant configuration aspects, and seal arrangement is easy to generate problems such as leakage.
Technological scheme of the present invention is as follows:
A kind of modified model multistage centrifugal pump, it comprises suction casing, stage casing and Spit Section, the pump shaft that is provided with in the pump housing, stator, impeller, bearing support and seal, and coupling, motor, suction port and discharge opening are equipped with balancing drum on the pump shaft in the described pump housing Spit Section; On the pump shaft in described pump housing suction casing and the Spit Section seal is housed respectively; Described pump shaft two ends are equipped with bearing support and bearing respectively, and pump shaft two sides except that pump coupling end are the complete symplex structure of exchangeable pump shaft direction, and bearing gland is equipped with in the pump shaft end: the footing joining plate is equipped with in described pump housing bottom.
Press horizontal multi-stage centrifugal pump simple in structure in of the present invention, motor can be arranged in the suction side of pump, can be arranged in the end that spues again, and turning to of pump shaft is constant, has made things convenient for the pump house design.
Bearing support foundry goods of the present invention and bearing all can be general for grease lubrication structure and thin oil lubricant structure; The shaft seal structure that is arranged in suction casing and Spit Section can be changed; The stage casing of each grade all is provided with seal arrangement; Pump is selected different sealed body structures to the wide accommodation of medium temperature for use at different temperatures, good seal performance, and the reliability height, mounting type is versatile and flexible.
Press horizontal multi-stage centrifugal pump can be widely used in boiler feed water and condenser system, mine plumbing, municipal water supply and supercharging in of the present invention, factory and high residential building group's water supply, freezing, the cooling recirculation system of air conditioner heating system supply water fire-fighting, spray system etc.
[description of drawings]
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the packing seal structure schematic representation of a kind of radiating fin cooling type seal among Fig. 1.
Fig. 3 is the mechanical seal structure schematic representation of a kind of radiating fin cooling type seal among Fig. 1.
Fig. 4 is the but packing seal structure signal of formula seal of a kind of external Forced water cooling among Fig. 1
Fig. 5 is the but mechanical seal structure schematic representation of formula seal of a kind of external Forced water cooling among Fig. 1.
Fig. 6 is the structural representation of Fig. 1 middle (center) bearing thin oil lubricant.
Fig. 7 is the schematic representation that the motor of Fig. 1 is arranged in the pump suction side.
Fig. 8 is that the motor of Fig. 1 is arranged in the schematic representation that pump spues and holds.
Fig. 9 is that Fig. 1 sees that from pump coupling end suction port, discharge opening direction become 0 ° schematic representation.
Figure 10 is that Fig. 1 sees that from pump coupling end suction port, discharge opening direction become 90 ° schematic representation.
Figure 11 is that Fig. 1 sees that from pump coupling end suction port, discharge opening direction become 180 ° schematic representation.
[specific embodiment]
Referring to Fig. 1, a kind of middle horizontal multi-stage centrifugal pump of pressing of the present invention is equipped with pump housing suction casing 1, stage casing 2 and Spit Section 6 and middle Spit Section 5, on pump housing suction casing 1 and Spit Section 5,6 suction port and discharge opening is set.By turnbuckle 7 suction casing 1, stage casing 2, Spit Section 6 and middle Spit Section 5 are linked together, form one.
Pump shaft 18, stator 3, impeller 4, bearing support 9 and bearing 10 and seal 11 are housed in the pump housing.Pump shaft 18 is connected with motor 29 with coupling 19.Footing joining plate 15 is equipped with in pump housing bottom, and the side is a return pipe 14.Pump housing suction casing 1 is processed with six bolt hole planes that are connected with footing joining plate 15 with Spit Section 6 at place, turnbuckle 7 holes, connects by footing joining plate 15 and base or basis, ground.Turnbuckle 7 holes symmetric arrangement equably on the plane of suction casing 1 and Spit Section 6, suction casing 1 and Spit Section 6 do not influence the installation of turnbuckle 7 when the flange direction is rotated.
On the pump shaft 18 in the pump housing Spit Section 6 balancing drum 12 is housed, the axial force that produces during with 18 runnings of balance pump shaft.On the pump shaft 18 in pump housing suction casing 1 and the Spit Section 6 seal 11 is housed respectively.This kind seal 11 can be changed as the axle envelope of suction casing 1 and Spit Section 6.According to the difference of medium temperature, the seal of selecting for use 11 can be the low temperature seal body, perhaps is radiating fin cooling type seal 20, also can be but formula seal 21 of external Forced water cooling.The low temperature seal body is packing seal 16 or mechanical seal 17.Label 13 is balancing drum covers among Fig. 1.
Referring to Fig. 2 and Fig. 3, seal 11 is a radiating fin cooling type seal 20, and radiating fin cooling type seal 20 is packing seal 16 or mechanical seal 17.
Referring to Fig. 4 and Fig. 5, seal 11 is a but formula seal 21 of external Forced water cooling, outward by Forced water cooling but formula seal 21 be packing seal 16 or mechanical seal 17.
Pump shaft 18 2 ends are equipped with bearing support 9 and bearing 10 respectively.Pump shaft 18 both sides except that pump coupling end are complete symplex structure, are guaranteeing under the constant prerequisite in the whole parts of pump mounting point the direction that can change pump shaft.
The selected seal 11 of the present invention is a kind of floating type sealed body structures, after suction casing 1, Spit Section 6, seal 11 and bearing support 9 are installed, form an O shape circle cavity at suction casing 1, Spit Section 6 and seal 11 binding sites, like this, seal 11 axially just be not rigidly connected.
Referring to Fig. 1 and in conjunction with referring to Fig. 6, bearing gland is housed in pump shaft 18 ends.Bearing gland among Fig. 1 is a grease lubricating bearing gland 8, and the bearing gland among Fig. 6 then is a thin oil lubricant bearing gland 22.Bearing support 9 foundry goods of grease lubrication structure and thin oil lubricant structure can be general, and bearing 10 also can be general, only need use different bearing gland 8,22 instead, just can realize the conversion of grease lubrication structure and thin oil lubricant structure.Thin oil lubricant bearing gland 22 has the thin oil oil pocket, compresses bearing 10 outer rings by four lugs at bolt penetration hole place, and the gland foundry goods left and right sides is general.
Referring to Fig. 7, the motor 29 of pump is arranged in the pump suction side.Referring to Fig. 8, the motor 29 of pump is arranged in the pump end that spues.This shows that the motor 29 of pump can be arranged in the pump suction side, can be arranged in the pump end that spues again, and turning to of pump shaft is constant, therefore made things convenient for the pump house design.
Referring to Fig. 9, motor 29 is arranged in the pump suction side or the end that spues, and suction port, the discharge opening direction can 0 °, 90 °, 180 ° layouts.Can be equipped with respectively on suction port and the discharge opening with 0 ° or 90 ° or 180 ° of suction flange and outlet(discharge) flanges that direction is arranged, form multi-angle thus and arrange.
Stage casing 2 at each grade all is provided with the O RunddichtringO, has thoroughly eliminated the inter-stage leakage thus.
Multistage pump of the present invention makes things convenient for the user to select for use with different fed sheet of a media temperature according to different mounting types.The complete series pump duty is 6.3-450m3/h, and lift is 50～660m, generally is used for boiler feed water and mine drainage.
Claims (9)
1. modified model multistage centrifugal pump, comprise suction casing, stage casing and Spit Section, the pump shaft that is provided with in the pump housing, stator, impeller, bearing support and seal, and coupling, motor, suction port and discharge opening is characterized in that on the pump shaft in the described pump housing Spit Section balancing drum being housed; On the pump shaft in described pump housing suction casing and the Spit Section seal is housed respectively; Pump shaft two ends are equipped with bearing support and bearing respectively, and pump shaft two sides except that pump coupling end are the complete symplex structure of exchangeable pump shaft direction, and bearing gland is equipped with in the pump shaft end: the footing joining plate is equipped with in described pump housing bottom.
2. modified model multistage centrifugal pump according to claim 1 is characterized in that, described bearing gland is grease lubricating bearing gland or thin oil lubricant bearing gland.
3. modified model multistage centrifugal pump according to claim 1 is characterized in that, described seal is the low temperature seal body.
4. modified model multistage centrifugal pump according to claim 4 is characterized in that, described low temperature seal body is packing seal or mechanical seal.
5. modified model multistage centrifugal pump according to claim 1 is characterized in that, described seal is a radiating fin cooling type seal.
6. modified model multistage centrifugal pump according to claim 6 is characterized in that, described radiating fin cooling type seal is packing seal or mechanical seal.
7. modified model multistage centrifugal pump according to claim 1 is characterized in that, described seal is a but formula seal of external Forced water cooling.
8. modified model multistage centrifugal pump according to claim 8 is characterized in that, described external Forced water cooling but formula seal is packing seal or mechanical seal.
9. modified model multistage centrifugal pump according to claim 1 is characterized in that, is equipped with respectively on described suction port and the discharge opening with 0 ° or 90 ° or 180 ° of suction flange and outlet(discharge) flanges that direction is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610029579 CN1888442A (en) | 2006-07-31 | 2006-07-31 | Improved multi-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610029579 CN1888442A (en) | 2006-07-31 | 2006-07-31 | Improved multi-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1888442A true CN1888442A (en) | 2007-01-03 |
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ID=37577729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610029579 Pending CN1888442A (en) | 2006-07-31 | 2006-07-31 | Improved multi-stage centrifugal pump |
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| Country | Link |
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| CN (1) | CN1888442A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666316B (en) * | 2008-09-03 | 2012-10-10 | 上海阿波罗机械股份有限公司 | Auxiliary water supply electric pump in nuclear power plant |
| CN103629161A (en) * | 2013-12-17 | 2014-03-12 | 辽宁长志泵业有限公司 | Second-level cantilever type small flow centrifugal pump |
| CN103696979A (en) * | 2013-12-26 | 2014-04-02 | 重庆水泵厂有限责任公司 | Centrifugal pump with shaft capable of freely expanding or contracting |
| CN104728124A (en) * | 2015-04-20 | 2015-06-24 | 杨海霞 | Multi-stage centrifugal pump |
| CN104791253A (en) * | 2015-04-20 | 2015-07-22 | 杨海霞 | Novel multistage centrifugal pump |
| CN110578693A (en) * | 2019-10-31 | 2019-12-17 | 沈阳启源工业泵制造有限公司 | Small-flow ultrahigh-pressure boiler feed pump |
-
2006
- 2006-07-31 CN CN 200610029579 patent/CN1888442A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666316B (en) * | 2008-09-03 | 2012-10-10 | 上海阿波罗机械股份有限公司 | Auxiliary water supply electric pump in nuclear power plant |
| CN103629161A (en) * | 2013-12-17 | 2014-03-12 | 辽宁长志泵业有限公司 | Second-level cantilever type small flow centrifugal pump |
| CN103696979A (en) * | 2013-12-26 | 2014-04-02 | 重庆水泵厂有限责任公司 | Centrifugal pump with shaft capable of freely expanding or contracting |
| CN103696979B (en) * | 2013-12-26 | 2016-03-30 | 重庆水泵厂有限责任公司 | Axle can the centrifugal pump of free expansion or free shrink |
| CN104728124A (en) * | 2015-04-20 | 2015-06-24 | 杨海霞 | Multi-stage centrifugal pump |
| CN104791253A (en) * | 2015-04-20 | 2015-07-22 | 杨海霞 | Novel multistage centrifugal pump |
| CN104791253B (en) * | 2015-04-20 | 2017-04-12 | 江苏庆海石油机械有限公司 | Multistage centrifugal pump |
| CN110578693A (en) * | 2019-10-31 | 2019-12-17 | 沈阳启源工业泵制造有限公司 | Small-flow ultrahigh-pressure boiler feed pump |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20070103 |