CN2622432Y - Self-balance multi-stage segmental centrifugal pump - Google Patents
Self-balance multi-stage segmental centrifugal pump Download PDFInfo
- Publication number
- CN2622432Y CN2622432Y CN 03234793 CN03234793U CN2622432Y CN 2622432 Y CN2622432 Y CN 2622432Y CN 03234793 CN03234793 CN 03234793 CN 03234793 U CN03234793 U CN 03234793U CN 2622432 Y CN2622432 Y CN 2622432Y
- Authority
- CN
- China
- Prior art keywords
- stage
- centrifugal pump
- pump
- pump shaft
- segmental
- 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.)
- Expired - Lifetime
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The utility model relates to a self-balance multi-stage segmental centrifugal pump which comprises a pump shaft (10), a forward and a backward impellers (2), (7) and shaft seal devices (12), wherein the pump shaft and the forward and backward impellers which are symmetrically arranged on the pump shaft and have the same structure size and opposite directions are arranged on a rotor; a forward and a backward guide blades (3), (8) which are matched and a forward and a backward intermediate sections (4), (9) which are matched are symmetrically arranged on a stator; a suction section (1) and an intermediate water inlet section (11) are conducted with a composite water outlet section (6) through a connector (5); the shaft seal devices (12) at both sides of the pump shaft are respectively connected with a thrust bearing device (13) to form a whole body. The utility model has exempt balanced construction, few wearing parts, and convenient assembly, disassembly and maintenance. In the secondary high pressure range, the common multiple-stage centrifugal pump is replaced, and the utility model also has obviously economical and social benefits.
Description
One, technical field
The utility model relates to the self-balanced multiple-stage segmental centrifugal pump that a kind of hydraulic component is symmetric arrangement, belongs to the FLUID TRANSPORTATION field.
Two, background technique
For single-suction centrifugal pump, no matter be single-stage or multistage, during pump operation because its suction side and exhaust end exist pressure reduction, must produce the axial force of pointing to the suction side.For balancing axial thrust, can adopt equalizing orifice, balance muscle, balancing drum, the isoequilibrium measure of Balance disc mechanism usually.Defectives such as but it is many that these balanced measure ubiquities easily damaged parts, and leakage loss is big, power consumption increases, and counterbalance effect is unreliable.Especially for the Balance disc mechanism of multistage pump, wear and tear, clash into damage especially easily, change frequently, the dismounting trouble becomes the problem that the user has a headache.
For many years, the design person is engaged in low pressure double suction middle open type volute pump and once to open the voluted type double-shell pump also all be not to be with to add balanced controls and the pump of the axial force that balances each other certainly in the high pressure double suction of exploitation several years ago always.But, still generally adopt Balance disc or balancing drum balance of mechanism axial force for common multistage segmental centrifugal pump below the widely used sub-high pressure of national economy all departments.Make this class pump structure comparatively complicated, therefore rate of fault increases.So, improve and the balance mode that upgrades this class pump is one of long-term pursuing target of people.
Three, summary of the invention
The purpose of this utility model is to provide a kind of self-balanced multiple-stage segmental centrifugal pump at the deficiencies in the prior art, is characterized in exempting from equilibrium structure, few easy workout part, and reliable, dismounting is easy to maintenance.
The purpose of this utility model is to be realized by following technical measures:
The self-balanced multiple-stage segmental centrifugal pump, contain pump shaft, impeller, stator and gland seal device, its characteristics are pump shaft and are loaded on the physical dimension that is symmetric arrangement on the pump shaft is identical, direction is opposite positive and negative impeller on rotor, be loaded on stator and be the front and back guide blade that is complementary and the positive and negative stage casing of symmetric arrangement, suction casing and middle inlet segment are by connector and compound water exit end conducting, and the gland seal device of pump shaft both sides and thrust bearing device connect and compose integral body respectively.
In order to realize goal of the invention better, the utility model is also taked following technical measures:
1, establishing isolating plate between the previous stage discharge side of compound water exit end and the reverse level discharge side is separated from each other runner.
When 2, multistage segmental was odd level, then first stage impeller was a double-sucking type.
3, connector is inner flow passage formula or outer flow passage formula.
4, multistage segmental centrifugal pump can be designed as horizontally or vertical, and vertical can be base type or tubular-bag tyep, and the sections housing is bareing or two shell type.
The utility model is compared with common multistage segmental centrifugal pump, has following advantage:
1, any balanced controls outside the hydraulic component have been saved, as the Balance disc device.Reduced easily damaged parts and made pump the probability of fault occur because of balanced controls imbalances.
The trouble of levelling axial clearance has made things convenient for the dismounting of pump when 2, having avoided the assembling Balance disc.
3, alleviate the load of thrust-bearing owing to axial force is in a basic balance, improved the operating conditions of axle and bearing.
4, owing to no balanced controls, the present invention more is applicable to the impure mal-condition work down that waits than the common multistage pump of equal parameter.
Four, description of drawings
Fig. 1 is a self-balanced multiple-stage segmental centrifugal pump structural representation.
1 suction casing, 2 positive impellers, 3 guide vanes, 4 positive stage casings, 5 connectors, 6 compound water exit ends, 7 anti-impellers, 8 return guide vanes, 9 anti-stage casings, 10 pump shafts, 11 middle inlet segments, 12 gland seal devices, 13 thrust bearing devices.
Five, embodiment
Below by embodiment the utility model is specifically described, can not be interpreted as restriction the utility model protection domain.
Embodiment:
Self-balanced multiple-stage sections centrifugal pump has simple in structure, easily manufactured, as shown in Figure 1, it is provided with suction casing 1 at an end of pump shaft 10, inwardly establish multistage positive impeller 2 successively, guide vane 3 and positive stage casing 4, positive impeller 2 is fixed on the rotor of pump shaft 10, guide vane 3 is fixed on the stator in positive stage casing 4, inlet segment 11 in the middle of the other end of pump shaft 10 is established, inwardly establish multistage anti-impeller 7 successively, return guide vane 8 and anti-stage casing 9, anti-impeller is fixed on the rotor of pump shaft 10 equally, return guide vane 8 is fixed on the stator in anti-stage casing 9, and water absorbing section 1 and middle inlet segment are 6. by connector 5 and compound water exit end 6 conductings.Establishing isolating plate between the previous stage discharge side of compound water exit end 6 and the reverse level discharge side is separated from each other runner.The pump shaft both sides are established gland seal device 12 and thrust bearing device 13 respectively.When multistage segmental was odd level, then first stage impeller was a double-sucking type.Connector 5 can be designed to inner flow passage formula or outer flow passage formula.The self-balanced multiple-stage segmental centrifugal pump can be designed as horizontal or vertical, and vertical can be base type or tubular-bag tyep.The sections housing is bareing or two shell type.
When pump operated, water was entered by the suction casing 1 of pump, through first order pressurization or the pressurization one by one of some levels, saved device 5 and entered next oppositely level pressurization or some levels are finally discharged by discharging section 6 one by one after the pressurization by connecting.Because the front and back level hop count amount of symmetric arrangement equates, physical dimension is identical, sense of rotation is anti-, so total pressure head equal and opposite in direction that front and back level section produces, the axial force equal and opposite in direction, the direction that act on front and back level section respectively that are produced by total pressure head are opposite, act on the same axis, so the axial force sum is zero.The axial force of pump obtains in a basic balance.
Claims (5)
1, self-balanced multiple-stage segmental centrifugal pump, contain pump shaft, impeller and gland seal device, it is characterized in that pump shaft (10) and be loaded on the physical dimension that is symmetric arrangement on the pump shaft is identical, direction is opposite positive and negative impeller (2) (7) on rotor, be loaded on stator and be the front and back guide blade that is complementary (3) (8) and the positive and negative stage casing (4) (9) of symmetric arrangement, suction casing (1) and middle inlet segment (11) are by connector (5) and compound water exit end (6) conducting, and gland seal device of pump shaft both sides (12) and thrust bearing device (13) connect and compose integral body respectively.
2,, it is characterized in that the previous stage discharge side of compound water exit end (6) and oppositely establish isolating plate between the level discharge side runner is separated from each other according to the described self-balanced multiple-stage segmental centrifugal pump of claim 1.
3, according to the described self-balanced multiple-stage segmental centrifugal pump of claim 1, when it is characterized in that multistage segmental is odd level, then first stage impeller is a double-sucking type.
4,, it is characterized in that connector (5) is inner flow passage formula or outer flow passage formula according to the described self-balanced multiple-stage segmental centrifugal pump of claim 1.
5, according to the described self-balanced multiple-stage segmental centrifugal pump of claim 1, it is horizontal or vertical to it is characterized in that this centrifugal pump can be designed as, and vertical can be base type or tubular-bag tyep, and the sections housing is bareing or two shell type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234793 CN2622432Y (en) | 2003-06-06 | 2003-06-06 | Self-balance multi-stage segmental centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234793 CN2622432Y (en) | 2003-06-06 | 2003-06-06 | Self-balance multi-stage segmental centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2622432Y true CN2622432Y (en) | 2004-06-30 |
Family
ID=34249411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03234793 Expired - Lifetime CN2622432Y (en) | 2003-06-06 | 2003-06-06 | Self-balance multi-stage segmental centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2622432Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606525A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Balance structure of rotor for starting water feeding pump |
| CN105317753A (en) * | 2015-10-19 | 2016-02-10 | 季裕成 | Mechanical seal temperature equalizing device of fluoroplastic pump |
| CN109322831A (en) * | 2018-11-29 | 2019-02-12 | 长沙佳能通用泵业有限公司 | A kind of double outlet self-balancing multi-stage pumps of four volute chambers |
| CN109340120A (en) * | 2018-11-29 | 2019-02-15 | 长沙佳能通用泵业有限公司 | A kind of four volute chambers three outlet self-balancing multi-stage pump |
-
2003
- 2003-06-06 CN CN 03234793 patent/CN2622432Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606525A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Balance structure of rotor for starting water feeding pump |
| CN105317753A (en) * | 2015-10-19 | 2016-02-10 | 季裕成 | Mechanical seal temperature equalizing device of fluoroplastic pump |
| CN109322831A (en) * | 2018-11-29 | 2019-02-12 | 长沙佳能通用泵业有限公司 | A kind of double outlet self-balancing multi-stage pumps of four volute chambers |
| CN109340120A (en) * | 2018-11-29 | 2019-02-15 | 长沙佳能通用泵业有限公司 | A kind of four volute chambers three outlet self-balancing multi-stage pump |
| CN109340120B (en) * | 2018-11-29 | 2019-08-13 | 长沙佳能通用泵业有限公司 | A kind of four volute chambers three outlet self-balancing multi-stage pump |
| CN109322831B (en) * | 2018-11-29 | 2019-08-13 | 长沙佳能通用泵业有限公司 | A kind of double outlet self-balancing multi-stage pumps of four volute chambers |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100575710C (en) | A kind of multistage turbine vacuum machine and use the method that it extracts multi-stage vacuum | |
| CN201265547Y (en) | Balancing type single-suction horizontal multiple-stage centrifugal pump | |
| CN103225624A (en) | Double-casing symmetric type radial subdivision multiple-stage centrifugal pump | |
| CN203214340U (en) | Double-shell symmetric radially-split multistage centrifugal pump | |
| CN2622432Y (en) | Self-balance multi-stage segmental centrifugal pump | |
| CN101696692A (en) | Double-suction multi-stage centrifugal pump | |
| CN203348177U (en) | Horizontal type self-balancing multiple-stage centrifugal pump with high-cavitation-resistant performance | |
| CN103498797A (en) | Parallel type self-balancing multi-stage centrifugal pump | |
| CN217558563U (en) | Double-suction high-lift balance type odd-level centrifugal pump | |
| CN206874490U (en) | Axial subdivision three-level centrifugal pump | |
| CN201090516Y (en) | Middle opening single suction multilevel diffuser centrifugal pump | |
| CN203532269U (en) | Parallel type self-balance multiple-stage centrifugal pump | |
| CN101936293A (en) | Double-inlet large-flow multistage centrifugal pump | |
| CN201972929U (en) | Flow rate and lift variable type self-balancing axial force multistage centrifugal pump | |
| CN2929282Y (en) | Horizontal guide vane type multistage middle open centrifugal pump | |
| CN102003395A (en) | Multi-purpose self-balancing multistage pump for ship | |
| CN103352875A (en) | Horizontal type self-balancing multistage centrifugal pump with high cavitation resistance | |
| KR102036201B1 (en) | Turbo Compressor | |
| CN2718290Y (en) | Single-suction two stage centrifugal pump | |
| KR20190122608A (en) | Turbo Compressor | |
| CN203374532U (en) | High-cavitation-resistant-performance horizontal multi-stage centrifugal pump | |
| CN201771783U (en) | Multilevel centrifugal pump with double inlets and mass flow | |
| CN111648967A (en) | Self-balancing multistage pump four-volute chamber water outlet section | |
| CN212055134U (en) | High cavitation performance mixed type multistage centrifugal pump | |
| CN216077695U (en) | Novel balance drum with double helix |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHENGDU SOUTHWEST VALVE CO., LTD. Free format text: FORMER OWNER: LI ZAICHENG Effective date: 20100422 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610000 SOUTHWEST PUMP FACTORY, F/6, CHAMBER OF COMMERCE BUILDING, NO.17,DACISI ROAD,CHENGDU,SICHUAN PROVINCE TO: 610100 NO.8-1-304, HUOJUDONGLI PORT, JINJIANG INDUSTRY DEVELOPMENT ZONE, CHENGDU CITY, SICHUAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100422 Address after: 610100 torch power port 8-1-304, Jinjiang Industrial Development Zone, Sichuan, Chengdu Patentee after: Chengdu Southwest Pump Valve Co., Ltd. Address before: Chengdu City, Sichuan province 610000 Daci Temple Road No. 17 building 6 water pump factory in southwest chamber of Commerce Patentee before: Li Zaicheng |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130606 Granted publication date: 20040630 |