CN204152848U - A kind of multistage centrifugal pump - Google Patents
A kind of multistage centrifugal pump Download PDFInfo
- Publication number
- CN204152848U CN204152848U CN201420503920.0U CN201420503920U CN204152848U CN 204152848 U CN204152848 U CN 204152848U CN 201420503920 U CN201420503920 U CN 201420503920U CN 204152848 U CN204152848 U CN 204152848U
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- bearing
- housed
- pump
- multistage centrifugal
- centrifugal pump
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Abstract
The utility model proposes a kind of multistage centrifugal pump, comprise pump casing structure and be placed in the rotor part structure in pump casing structure, described pump casing structure comprises the axial clearance adjust system that bearing is housed, suck pump cover, the guide middle section of stator is housed, the water inlet-outlet segment of exhaust stage blade and self-balancing system is housed, lead the bearing support covering and be equipped with bearing assembly, described axial clearance adjust system, suck pump cover, fill vaned guide middle section, the water inlet-outlet segment of final stage stator and self-balancing system is housed, lead lid and bearing assembly is housed bearing support by turnbuckle fastening formation entirety.The multistage centrifugal pump of this structure, compared with multistage centrifugal pump of the prior art, has that pumping efficiency is high, Security good, and maintenance process simulation advantage easily.
Description
Technical field
The utility model relates to multistage pump field, particularly a kind of multistage centrifugal pump.
Background technique
Multistage centrifugal pump a kind ofly realizes more high-lift conventional hydraulic machinery, at present, the multistage pump generally used is generally to balance its axial force by Balance disc, bearing own does not bear axial force, because the change of microcosmic can occur multistage pump in the course of the work, Balance disc is ceaselessly contacted with gimbal, easily causes equipment irregular operation, even injure the safety of whole equipment.Meanwhile, owing to wanting balancing axial thrust, the partially liq in multistage pump can leak, and causes partial volume to lose, and causes pumping efficiency to decline.
In addition, the employing mono-hull design that conventional clear water multistage pump is more, pump is once leak, and high pressure water can directly eject, and brings potential safety hazard.On the other hand, maintenance process simulation need dismantle inlet and outlet pipe lines, and therefore, care and maintenance efficiency is lower, and workload is larger.
In sum, how to provide that a kind of pumping efficiency is high, Security good, and maintenance process simulation multistage centrifugal pump easily, become those skilled in the art to need the technical problem of solution badly.
Model utility content
Based on the deficiencies in the prior art, problem to be solved in the utility model how to provide that a kind of pumping efficiency is high, Security good, and maintenance process simulation multistage centrifugal pump easily.
For solving the problems of the technologies described above, the utility model provides a kind of multistage centrifugal pump, comprise pump casing structure and be placed in the rotor part structure in pump casing structure, described pump casing structure comprises the axial clearance adjust system that bearing is housed, suck pump cover, the guide middle section of stator is housed, the water inlet-outlet segment of exhaust stage blade and self-balancing system is housed, lead the bearing support covering and be equipped with bearing assembly, described axial clearance adjust system, suck pump cover, fill vaned guide middle section, the water inlet-outlet segment of final stage stator and self-balancing system is housed, lead lid and bearing assembly is housed bearing support by turnbuckle fastening formation entirety.
As the improvement on the one hand of a kind of multistage centrifugal pump of the utility model, described rotor part structure comprises main shaft, bearing interstage sleeve, axle sleeve, first stage impeller, impeller, axle sleeve, bearing interstage sleeve and bearing, the two ends of described main shaft, bearing interstage sleeve, axle sleeve, first stage impeller, impeller, axle sleeve, bearing interstage sleeve and bearing are fixed on by locking nut is equipped with on the main shaft of flat key, and drives rotor to do work by power unit.
As the improvement on the one hand of a kind of multistage centrifugal pump of the utility model, the quantity of described stator is determined according to the pressure size in pump casing structure, and when pressure is large, the quantity of described stator is many; When pressure hour, the quantity of described stator is few.
As the improvement on the one hand of a kind of multistage centrifugal pump of the utility model, described power unit is motor.
The multistage centrifugal pump of said structure, comprise pump casing structure and rotor part structure, described pump casing structure comprise bearing is housed axial clearance regulation system, suck pump cover, the guide middle section of stator is housed, the water inlet-outlet segment of final stage stator and self-balancing system is housed, leads lid and the bearing support of bearing assembly is housed, the water inlet-outlet segment of the axial clearance regulation system of bearing is housed, sucks pump cover, the guide middle section of stator is housed, be equipped with final stage stator and self-balancing system, the bearing support of leading lid and bearing assembly being housed are by turnbuckle fastening formation entirety.The multistage centrifugal pump of this structure, compared with multistage centrifugal pump of the prior art, has that pumping efficiency is high, Security good, and maintenance process simulation advantage easily.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.
Fig. 1 is the structural representation of a kind of multistage centrifugal pump of the utility model;
Fig. 2 is a kind of multistage centrifugal pump structural drawing with power assembly of the utility model.
In Fig. 1 to Fig. 2, the corresponding relation of reference character is:
1 water-cooling tube 2 water cooled bearing body 3 tail-hood
4 self-balancing system 5 water inlet-outlet segment 6 final stage guide cards
7 baffle liner 8 stator 9 impellers
10 guide middle section 11 first stage impeller 12 chopped-off head seal rings
13 turnbuckles 14 suck pump cover 15 axial clearance adjust system
16 bearing interstage sleeve 17 machine capping 18 machine envelope self-loopa water pipes
19 axle sleeves 20 cool chamber cap 21 balancing pipeline
22 power units
Embodiment
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
Multistage centrifugal pump as shown in Figures 1 and 2, its configuration aspects, comprise pump casing structure and be placed in the rotor part structure in pump casing structure, described pump casing structure comprises the axial clearance adjust system 15 that bearing is housed, suck pump cover 14, the guide middle section 10 of stator 8 is housed, the water inlet-outlet segment 5 of final stage guide card 6 and self-balancing system 4 is housed, lead the bearing support covering and be equipped with bearing assembly, specifically, axial clearance adjust system 15, suck pump cover 14, the guide middle section 10 of stator 8 is housed, the water inlet-outlet segment 5 of final stage guide card 6 and self-balancing system 4 is housed, lead lid and bearing assembly is housed bearing support by turnbuckle 13 fastening formation entirety.
In technique scheme, rotor part structure comprises main shaft, bearing interstage sleeve 16, axle sleeve 19, first stage impeller 11, impeller 9, axle sleeve 19, bearing interstage sleeve 16 and bearing, particularly, the two ends of main shaft, bearing interstage sleeve 16, axle sleeve 19, first stage impeller 11, impeller 9, axle sleeve 19, bearing interstage sleeve 16 and bearing are fixed on by locking nut is equipped with on the main shaft of flat key, and drives rotor to do work by power unit 22.
Further, the quantity of stator 8 is determined according to the pressure size in pump casing structure, and when pressure is large, the quantity of stator 8 is many; When pressure hour, the quantity of stator 8 is few.
For power unit 22, as shown in Figure 2, be preferably motor, after electrical power, main shaft can be driven to rotate, thus the acting of rotor driven parts.
In addition, as can be seen from Figure, multistage centrifugal pump described in the utility model, also comprises water-cooling tube 1, water cooled bearing body 2, tail-hood 3, baffle liner 7, chopped-off head seal ring 12, machine capping 17, machine envelope self-loopa water pipe 18, cooling chamber cap 20 and balancing pipeline 21.Its concrete structure with reference to existing and improvement opportunity, can be not described in detail in this.
The multistage centrifugal pump of this structure, water (flow) direction is as shown in the direction of arrow in figure, water flows into from the water inlet-outlet segment 5 of pump through import, enter the outside rectifying cavity of pump, the low-pressure cavity (low-pressure cavity equals the inlet pressure of pump) through guide middle section 10 flows into suction pump cover 14, enters stator 8 through first stage impeller 11, flow through each secondary impeller and stator 8, complete the pressure transfer process step by step of pump, enter the water inlet-outlet segment 5 of pump finally by final stage guide card 6, discharge from delivery side of pump.
The multistage centrifugal pump of said structure, tool has the following advantages:
First, be at same part owing to have employed import and export, maintenance of equipment does not need to dismantle pipeline, so very convenient to pump.First take off all coupling pins when maintenance, then dismantle intermediate shaft coupling.Lay down pump coupling again and disassemble axial clearance regulation system, unload sealed member again, corresponding rotor part is gone forward side by side simultaneously simultaneously, unclamp turnbuckle 13, shell unloads successively and sucks pump cover, guide middle section 10 until water inlet-outlet segment 5, while dismounting shell, dismantle rotor part successively, then dismantle self-balancing system 4, until take off all component.It is the counter movement of disassembly procedure when assembling.
Secondly, the high-lift of multistage centrifugal pump makes axial force and radial force complete equilibrium, small equilibrirm water (only having less than 20% of common multistage pump), by double hulled structure, water inlet and outlet pipeline is on the center line of same pipeline, and maintenance does not need to dismantle pipeline, and hyperbaric chamber is built-in, improve the Security of water pump operation, will more than 5% be improved than the pump efficiency of same parameter.
In sum, the multistage centrifugal pump of said structure, has that pumping efficiency is high, Security good, and maintenance process simulation advantage easily.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a multistage centrifugal pump, it is characterized in that, comprise pump casing structure and be placed in the rotor part structure in pump casing structure, described pump casing structure comprises the axial clearance adjust system (15) that bearing is housed, suck pump cover (14), the guide middle section (10) of stator (8) is housed, the water inlet-outlet segment (5) of final stage guide card (6) and self-balancing system (4) is housed, lead the bearing support covering and be equipped with bearing assembly, described axial clearance adjust system (15), pump cover (14), the guide middle section (10) of stator (8) is housed, the water inlet-outlet segment (5) of final stage guide card (6) and self-balancing system (4) is housed, lead lid and bearing assembly is housed bearing support by turnbuckle (13) fastening formation entirety.
2. multistage centrifugal pump according to claim 1, it is characterized in that, described rotor part structure comprises main shaft, bearing interstage sleeve (16), axle sleeve (19), first stage impeller (11), impeller (9), axle sleeve (19), bearing interstage sleeve (16) and bearing, described main shaft, bearing interstage sleeve (16), axle sleeve (19), first stage impeller (11), impeller (9), axle sleeve (19), the two ends of bearing interstage sleeve (16) and bearing are fixed on by locking nut is equipped with on the main shaft of flat key, and drive rotor to do work by power unit (22).
3. multistage centrifugal pump according to claim 1, is characterized in that, the quantity of described stator (8) is determined according to the pressure size in pump casing structure, and when pressure is large, the quantity of described stator (8) is many; When pressure hour, the quantity of described stator (8) is few.
4. multistage centrifugal pump according to claim 2, is characterized in that, described power unit (22) is motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420503920.0U CN204152848U (en) | 2014-09-03 | 2014-09-03 | A kind of multistage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420503920.0U CN204152848U (en) | 2014-09-03 | 2014-09-03 | A kind of multistage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204152848U true CN204152848U (en) | 2015-02-11 |
Family
ID=52510968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420503920.0U Expired - Fee Related CN204152848U (en) | 2014-09-03 | 2014-09-03 | A kind of multistage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204152848U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681435A (en) * | 2017-10-18 | 2019-04-26 | 上海凯士比泵有限公司 | A kind of centrifugal multistage pump multiple centrifugal pump of low-pressure pulsation |
-
2014
- 2014-09-03 CN CN201420503920.0U patent/CN204152848U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681435A (en) * | 2017-10-18 | 2019-04-26 | 上海凯士比泵有限公司 | A kind of centrifugal multistage pump multiple centrifugal pump of low-pressure pulsation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170527 Address after: Changsha County City, Hunan province 410000 Changsha Jiang Bei Zhen Nan Mu Cun Patentee after: Okay Changsha Pump Manufacturing Co. Address before: Changsha County City, Hunan province 410135 Changsha Jiang Bei Zhen Nan Mu Cun Zhao Gongpo Group No. 41 Patentee before: Guo Xuewen |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20200903 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |