CN101482121A - Vertical multi-stage centrifugal pump - Google Patents
Vertical multi-stage centrifugal pump Download PDFInfo
- Publication number
- CN101482121A CN101482121A CNA2009100457745A CN200910045774A CN101482121A CN 101482121 A CN101482121 A CN 101482121A CN A2009100457745 A CNA2009100457745 A CN A2009100457745A CN 200910045774 A CN200910045774 A CN 200910045774A CN 101482121 A CN101482121 A CN 101482121A
- Authority
- CN
- China
- Prior art keywords
- pump
- vertical multi
- seal
- bearing
- centrifugal pump
- 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.)
- Withdrawn
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of centrifugal pumps, in particular to a vertical multi-grade centrifugal pump which comprises a suction section, a middle section, an impeller output section, an impeller, a bearing body, a sealing body and a shaft joint. The vertical multi-grade centrifugal pump is characterized in that a pump spindle in the impeller output section of a pump body is equipped with a balance drum; the pump spindles in the suction section and the impeller output section of the pump body are respectively equipped with a sealing body; the two ends of the pump spindle are respectively equipped with the bearing body and a bearing; the two sides of the pump spindle except a pump shaft joint end are in completely symmetrical structure which can exchange the direction of the pump spindle; and the end of the pump spindle is equipped with a bearing gland bush. The vertical multi-grade centrifugal pump has the beneficial effects that the vertical multi-grade centrifugal pump has a simple structure, wherein, a motor can be arranged at a suction end of the pump and also can be arranged at a discharge end, and the diversion of the pump spindle is not changed, thereby being convenient for the design of a pump room; the middle section of each grade is all provided with a sealing device; the pump has wide adaption range towards the medium temperature; different sealing body structures are selected according to different temperatures; and the vertical multi-grade centrifugal pump has good sealing performance, high reliability and flexible and diversified installation methods.
Description
[technical field]
The present invention relates to the centrifugal pump technical field, particularly a kind of vertical multi-stage centrifugal pump.
[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, and 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 the leaf section of going out can not be changed, and does not have seal arrangement in the stage casing of each grade, causes inter-stage to produce thus and leaks.
[summary of the invention]
Task of the present invention provides a kind of vertical multi-stage centrifugal pump, 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 vertical multi-stage centrifugal pump, comprise the outlet of suction casing, stage casing, the leaf section of going out, the pump shaft that in the pump housing, is provided with, stator, impeller, bearing support, seal, coupling, motor and suction port and leaf, it is characterized in that: on the pump shaft in the described pump housing leaf section of going out balancing drum is housed, on the pump shaft in pump housing suction casing and the leaf section of going out seal is housed respectively, pump shaft two ends are equipped with bearing support and bearing respectively, 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.
Described bearing gland is grease lubricating bearing gland or thin oil lubricant bearing gland.
Described seal is the low temperature seal body.
Described low temperature seal body is packing seal or mechanical seal.
Described seal is a radiating fin cooling type seal.
Vertical multi-stage centrifugal pump of the present invention is simple in structure, and 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 the leaf section of going out 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.
The present invention is mainly used in tall building life, fire-fighting, heating, air-conditioning system feedwater, hotel, megastore, office building contour level building, occasions such as industrial and mining enterprise's municipal engineering plumbing, fire-fighting, spray system feedwater and boiler feed water, chemical-process make-up water.
[description of drawings]
Fig. 1 is a structural representation of the present invention.
Referring to Fig. 1: 1 is suction casing, and 2 are the bolt that discharges water, and 3 is lower bearing, and 4 is the stage casing, 5 is stator, and 6 is the stator cover, and 7 is impeller, and 8 is the final stage stator, 9 is the balancing drum cover, and 10 is balancing drum, and 11 is seal, and 12 is sealing gland, 13 is bearing bracket stand, and 14 is bearing, and 15 is motor cabinet, and 16 is motor, 17 is coupling, and 18 is bearing gland, and 19 is bearing support, 20 is bearing sleeve, and 21 are the leaf section of going out, and 22 is rod.
[specific embodiment]
Referring to Fig. 1, a kind of vertical multi-stage centrifugal pump of the present invention is equipped with pump housing suction casing 1, stage casing 4 and the leaf section of going out 21, and the outlet of suction port and leaf is set on pump housing suction casing and the leaf section of going out.By turnbuckle suction casing, stage casing, the leaf section of going out are joined together to form one.Pump shaft, stator 5, impeller 7, bearing support 19 and bearing 14 and seal 11 are housed in the pump housing.Pump shaft is connected with motor 16 with coupling 17.
On the pump shaft in the pump housing leaf section of going out balancing drum 10 is housed, the axial force that produces when turning round with the balance pump shaft.On the pump shaft in pump housing suction casing and the leaf section of going out seal 11 is housed respectively.This kind seal can be changed as the axle envelope of suction casing and the leaf section of going out.According to the difference of medium temperature, the seal of selecting for use can be the low temperature seal body, perhaps is radiating fin cooling type seal, also can be but formula seal of external Forced water cooling.The low temperature seal body is packing seal or mechanical seal.
Pump shaft two ends are equipped with bearing support 19 and bearing 14 respectively.Pump shaft 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 of the present invention is a kind of floating type sealed body structure, after suction casing, the leaf section of going out, seal and bearing support are installed, form an O shape circle cavity at suction casing, the leaf section of going out and seal binding site, like this, seal axially just be not rigidly connected.
In the pump shaft end bearing gland 18 is housed.Bearing gland among Fig. 1 is grease lubricating bearing gland or thin oil lubricant bearing gland.The bearing support foundry goods of grease lubrication structure and thin oil lubricant structure can be general, and bearing also can be general, only need use different bearing glands instead, just can realize the conversion of grease lubrication structure and thin oil lubricant structure.The thin oil lubricant bearing gland has the thin oil oil pocket, and by four lug compression axis bearing outer-rings at bolt penetration hole place, the gland foundry goods left and right sides is general.
This Pump Suction Nozzle and water outlet divide up-down structure, and the user can will import and export direction half-twist, 180 °, 270 ° four positions on the vertical point according to actual conditions when mounted.Pump shaft and motor shaft are on the same horizontal line, and bearing adopts low noise bearing, so the complete machine noise in operating is very low, vibrate very for a short time, have improved Environmental Conditions greatly, have improved working life.Be characterized in that floor space is little, lift height, installation, maintenance are conveniently.Be applicable to the tall building plumbing, unit delivery temperatures such as fire extinguishing pump, factory, mine, oil field are similar to the liquid of water in clear water or physicochemical properties below 90 ℃.
Claims (5)
1, a kind of vertical multi-stage centrifugal pump, comprise the outlet of suction casing, stage casing, the leaf section of going out, the pump shaft that in the pump housing, is provided with, stator, impeller, bearing support, seal, coupling, motor and suction port and leaf, it is characterized in that: on the pump shaft in the described pump housing leaf section of going out balancing drum is housed, on the pump shaft in pump housing suction casing and the leaf section of going out seal is housed respectively, pump shaft two ends are equipped with bearing support and bearing respectively, 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.
2, vertical multi-stage 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, vertical multi-stage centrifugal pump according to claim 1 is characterized in that: described seal is the low temperature seal body.
4, vertical multi-stage centrifugal pump according to claim 3 is characterized in that: described low temperature seal body is packing seal or mechanical seal.
5, vertical multi-stage centrifugal pump according to claim 1 is characterized in that: described seal is a radiating fin cooling type seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100457745A CN101482121A (en) | 2009-02-05 | 2009-02-05 | Vertical multi-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100457745A CN101482121A (en) | 2009-02-05 | 2009-02-05 | Vertical multi-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101482121A true CN101482121A (en) | 2009-07-15 |
Family
ID=40879367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100457745A Withdrawn CN101482121A (en) | 2009-02-05 | 2009-02-05 | Vertical multi-stage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101482121A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852808A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard-alloy amphibious mining vertical pump capable of idling and being in series connection |
| CN106938691A (en) * | 2017-02-16 | 2017-07-11 | 浙江大学 | Centrifugal impeller sucker under water |
| CN108443159A (en) * | 2018-05-11 | 2018-08-24 | 约翰斯顿流体科技（无锡）有限公司 | A kind of vertical multi-stage punching press stainless steel centrifugal pump |
| CN113757158A (en) * | 2021-08-18 | 2021-12-07 | 合肥新沪屏蔽泵有限公司 | Balance drum structure for multistage shield pump |
-
2009
- 2009-02-05 CN CNA2009100457745A patent/CN101482121A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102852808A (en) * | 2011-06-27 | 2013-01-02 | 王喜冬 | Hard-alloy amphibious mining vertical pump capable of idling and being in series connection |
| CN102852808B (en) * | 2011-06-27 | 2015-11-25 | 王喜冬 | Cemented carbide idle running can be connected amphibious vertical pump for mine |
| CN106938691A (en) * | 2017-02-16 | 2017-07-11 | 浙江大学 | Centrifugal impeller sucker under water |
| CN106938691B (en) * | 2017-02-16 | 2019-02-05 | 浙江大学 | The underwater sucker of centrifugal impeller |
| CN108443159A (en) * | 2018-05-11 | 2018-08-24 | 约翰斯顿流体科技（无锡）有限公司 | A kind of vertical multi-stage punching press stainless steel centrifugal pump |
| CN113757158A (en) * | 2021-08-18 | 2021-12-07 | 合肥新沪屏蔽泵有限公司 | Balance drum structure for multistage shield pump |
| CN113757158B (en) * | 2021-08-18 | 2023-12-05 | 合肥新沪屏蔽泵有限公司 | Balance drum structure for multistage shielding pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101482121A (en) | Vertical multi-stage centrifugal pump | |
| CN101644269A (en) | High pressure centrifugal pump for desalinizing sea water | |
| CN103352855A (en) | Novel hydrodynamic turbine pump free of shaft seal structure | |
| CN103225624A (en) | Double-casing symmetric type radial subdivision multiple-stage centrifugal pump | |
| CN101482122A (en) | Vertical shield pump | |
| CN203214340U (en) | Double-shell symmetric radially-split multistage centrifugal pump | |
| CN102840142B (en) | The multi-stage shield pump that a kind of motor is put | |
| CN204082560U (en) | Crude oil pipeline conveying oil line pump | |
| CN203822689U (en) | Vertical shaft guide vane type mixed flow pump | |
| CN1888442A (en) | Improved multi-stage centrifugal pump | |
| CN204783697U (en) | Little quick -witted condensate pump of vertical multistage section of thick bamboo pocket type | |
| CN204476840U (en) | Metal horizontal centrifugal pump | |
| CN201650747U (en) | Vertical single-stage centrifugal water pump | |
| CN201521448U (en) | Easily disassembled pipeline centrifugal pump | |
| CN206111656U (en) | Centrifugal pump of innovative blade | |
| CN204984924U (en) | Double suction self -balancing multistage centrifugal pump | |
| CN203926048U (en) | A kind of detachable type vertical pipeline mounted pump | |
| CN203114661U (en) | Vertical type water ring vacuum pump | |
| CN201133353Y (en) | Double suction constant pressure pump | |
| CN204942046U (en) | A kind of chemical industry Under Water Pumps | |
| CN206874568U (en) | Vertical pipeline mounted pump | |
| CN201193608Y (en) | Screw pump for deviated and horizontal wells | |
| CN204226218U (en) | Multistage pump | |
| CN104929950A (en) | Water-cooled low-noise pump | |
| RU93898U1 (en) | WELL ELECTRIC HYDRAULIC DRIVE SCREW PUMP UNIT |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |