CN201148980Y - Barrel body type single-suction multilevel impeller symmetrical diffuser-type centrifugal pump - Google Patents
Barrel body type single-suction multilevel impeller symmetrical diffuser-type centrifugal pump Download PDFInfo
- Publication number
- CN201148980Y CN201148980Y CNU2007200653427U CN200720065342U CN201148980Y CN 201148980 Y CN201148980 Y CN 201148980Y CN U2007200653427 U CNU2007200653427 U CN U2007200653427U CN 200720065342 U CN200720065342 U CN 200720065342U CN 201148980 Y CN201148980 Y CN 201148980Y
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- pump
- dividing plate
- impeller
- blade wheel
- wheel chamber
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Abstract
The utility model discloses a tubular single suction multilevel symmetrical-impellers guide vane centrifugal pump. A pump body is a tubular structure; a liquid inlet and a liquid outlet are integrated with the pump body; an impeller chamber consists of moveable guide vanes and a baffle combination, and is arranged in the pump body; impellers are arranged symmetrically and evenly in the opposite direction; a water channel of the pump is a flow channel inside the proper pump body; a discharge chamber of the pump is a volute case structure; a pump cover is a part of the flow channel; and the baffle combination is a half-split structure. The centrifugal pump has the advantages of simple structure, less latent leakage point, stable operation, high reliability and higher efficiency.
Description
Technical field
The utility model relates to a kind of pump, particularly a kind of single suction multi-stage impeller symmetry stator formula centrifugal pump, and this type pump is widely used in all trades and professions, is specially adapted to pump high temperature, high pressure, inflammable and explosive, the poisonous medium of burn into is arranged.
Background technique
Existing three above impeller multistage pumps have two types: first kind is single suction multistage segmental formula stator formula multistage pump, this type pump impeller chamber adds stator by a plurality of independent sections and forms, be connected with the liquid in-out section by pull bar, axial force is by the balanced controls balance, pump axially string quantity of motion must be arranged.The shortcoming of this type pump is: each sections all is potential leakage points; In a single day balanced controls stop up or damage, and rotor part will wear and tear or be stuck, and serious meeting friction produces high temperature, high pressure, blasts behind the vaporizing liquid; Pump component is many, and processing and loading and unloading amount are big; Need remove the liquid in-out pipeline during maintenance; Rotor part is long, and operation stability is relatively poor; Pump is heavier.Second kind is the multistage voluted type middle-opening pump of single suction, the positive and negative layout of this type pump impeller, and sealing surface is to open subdivision in the level, forward and reverse runner is connected by outer tube.The shortcoming of this type pump is: it is long, excessive to open sealing surface in the subdivision, is difficult for sealing when pressure is high; Positive and negative runner is taken over to externally connected pipe, does not meet petrochemical industry pump standard; The pump housing, pump cover are too complicated, processing difficulties, and process equipment requires high; Pump integral body is too heavy, and raw material and manufacture cost are too high.
So above-mentioned two types of pumps are not suitable for pumping high temperature, high pressure, inflammable and explosive, the poisonous medium of burn into are arranged.
The model utility content
Technical problem to be solved in the utility model provides a kind of simple in structure, and good seal performance operates steadily, reliability height, the barrel-type single suction multi-stage impeller symmetry stator formula centrifugal pump that efficient is higher.
In order to solve the problems of the technologies described above, the barrel-type single suction multi-stage impeller symmetry stator formula centrifugal pump that the utility model provides, comprise the pump housing, pump cover, pump liquid entering hole, pump liquid outlet, impeller and blade wheel chamber, the described pump housing is the cartridge type pump housing, described pump liquid entering hole and pump liquid outlet and the described cartridge type pump housing are cast into one, and described impeller and described blade wheel chamber are wrapped up by the described cartridge type pump housing.
Described impeller adopts forward and reverse layout symmetrically and evenly, and the also forward and reverse layout of corresponding blade wheel chamber is provided with forward fluid runner between forward and reverse blade wheel chamber.
The described forward fluid runner and the described cartridge type pump housing are cast into one.
Described blade wheel chamber is made up of the stator and the dividing plate of activity, and described stator and dividing plate combination are screwed, and use dowel fixes between every grade of described blade wheel chamber, adopt the pump cover location, and described dividing plate combination and described pump cover are equipped with seal ring.
The combination of described dividing plate is made up of the first dividing plate positioning ring that divides half formula structure and second partition positioning ring and dividing plate.
The chamber of spuing of pump is the voluted type structure.
Adopt the barrel-type single suction multi-stage impeller symmetry stator formula centrifugal pump of technique scheme, impeller and blade wheel chamber are wrapped up by the same cartridge type pump housing, and the pump liquid in-out mouth and the cartridge type pump housing are same one, the runner of pump own is inner flow passage, significantly reduced potential leakage point, and maintenance the time does not need to dismantle pipeline.Blade wheel chamber is made up of the stator and the dividing plate of activity, and stator and dividing plate combination are screwed, and use dowel fixes between every grade of blade wheel chamber, locate with pump cover at last.Processing and handling procedure have been simplified like this, greatly.Impeller is forward and reverse to be arranged symmetrically and evenly, automatically balancing axial force, and residual axial force is born by the thrust-bearing at two ends, owing to removed balanced controls, pump can axially be completely fixed by rotor part, the reliability and the stability of pump operation improve greatly.Dividing plate is combined as branch half formula structure, and assembling or dismounting are very easy to.Reduce the axial dimension of pump rotor, reduce and make and processing cost, shorten working space, improve pump operation stability.
In sum, the utility model is a kind of simple in structure, and good seal performance operates steadily, the reliability height, and the barrel-type single suction multi-stage impeller symmetry stator formula centrifugal pump that efficient is higher is more suitable for pumping high temperature, high pressure, the inflammable and explosive and poisonous medium of burn into is arranged.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is a dividing plate locating ring structure schematic representation;
Fig. 3 cuts open along A-A line among Fig. 2 to show the dividing plate constitutional diagram.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the pump housing is the cartridge type pump housing 3, the cartridge type pump housing 3 two ends are provided with pump cover 2 and bearing support 16, pump liquid entering hole 22 and pump liquid outlet 21 are cast into one with the cartridge type pump housing 3, be provided with thrust-bearing 15 in the bearing support 16, thrust-bearing 15 is provided with main shaft 14, positive impeller 5, anti-impeller 12 adopt forward and reverse being arranged in symmetrically and evenly on the main shaft 14, positive impeller 5, anti-impeller 12 and blade wheel chamber are by the cartridge type pump housing 3 parcels, be provided with forward fluid runner 10 between forward and reverse blade wheel chamber, forward fluid runner 10 is cast into one with the cartridge type pump housing 3; Blade wheel chamber is made up of guide vane 4, return guide vane 11 and the dividing plate combination 6 of activity, guide vane 4, return guide vane 11 and dividing plate combination 6 usefulness screws 7 are fixing, fix with first pin 13, second pin 19 between every grade of blade wheel chamber, adopt pump cover 2 location, dividing plate combination 6 and pump cover 2 are equipped with seal ring 8, and pump liquid entering hole 22 can be vertical with pump liquid outlet 21, but also horizontal arrangement, spue chamber 20 of pump is the voluted type structure, and middle stator 9 back sides are the back shroud of volute.
Impeller and blade wheel chamber be by the same cartridge type pump housing 3 parcels, and pump liquid in-out mouth 22,21 is same one with the cartridge type pump housing 3, forward fluid runner 10, and the runner of pump own is inner flow passage, has significantly reduced potential leakage point, and do not need to dismantle pipeline when keeping in repair.
Blade wheel chamber is made up of guide vane 4, return guide vane 11, dividing plate combination 6, assemble sequence is: stator 9---guide vane 4, the positive impeller 5 of return guide vane 11---, anti-impeller 12---dividing plate combination 6---screw 7 among the anti-impeller 12---, last pump cover 2 compresses blade wheel chamber, and blade wheel chamber is not rotated.Processing and handling procedure have been simplified like this, greatly.
As shown in Figures 2 and 3, dividing plate combination 6 is for dividing half formula structure, form by the first dividing plate positioning ring 23 and second partition positioning ring 24 and dividing plate 25, during loading and unloading, as long as the first dividing plate positioning ring 23 and second partition positioning ring 24 are respectively charged into (or unloading) guide vane 4, return guide vane 11, the first dividing plate positioning ring 23 and second partition positioning ring 24 can be loaded onto (or drawing off) cartridge type body pump 3.The first dividing plate positioning ring 23 and second partition positioning ring 24 and the cartridge type pump housing 3 radial fit, guide vane 4, return guide vane 11 axially cooperate with the first dividing plate positioning ring 23 and second partition positioning ring 24, so the assembling of pump and dismounting are very easy to, the situation under the dead dismounting not of can not burning to death or become rusty.
Bearing is a thrust-bearing 15, bears the rotor part residual axial force, and whole rotor part is fixed by bearing part, because rotor part is completely fixed operation, so the reliability of pump operation improves greatly.Bearing support 16 is provided with the bearing lubrication bunker, and the bearing cooling is by the cooling chamber 1 water cycle cooling of sealing.
Claims (6)
1, a kind of barrel-type single suction multi-stage impeller symmetry stator formula centrifugal pump, comprise the pump housing, pump cover, pump liquid entering hole, pump liquid outlet, impeller and blade wheel chamber, it is characterized in that: the described pump housing is the cartridge type pump housing (3), described pump liquid entering hole (22) and pump liquid outlet (21) are cast into one with the described cartridge type pump housing (3), and described impeller and described blade wheel chamber are wrapped up by the described cartridge type pump housing (3).
2, barrel-type single suction multi-stage impeller symmetry stator formula centrifugal pump according to claim 1, it is characterized in that: described impeller (5,12) adopts forward and reverse layout symmetrically and evenly, the also forward and reverse layout of corresponding blade wheel chamber is provided with forward fluid runner (10) between forward and reverse blade wheel chamber.
3, barrel-type single suction multi-stage impeller symmetry stator formula centrifugal pump according to claim 2, it is characterized in that: described forward fluid runner (10) is cast into one with the described cartridge type pump housing (3).
4, barrel-type single suction multi-stage impeller symmetry stator formula centrifugal pump according to claim 1 and 2, it is characterized in that: described blade wheel chamber is made up of the stator (4,11) and the dividing plate combination (6) of activity, described stator (4,11) and dividing plate combination (6) are fixing with screw (7), fixing between every grade of described blade wheel chamber with pin (13,19), adopt pump cover (2) location, described dividing plate combination (6) and described pump cover (2) are equipped with seal ring (8).
5, barrel-type single suction multi-stage impeller according to claim 4 symmetry stator formula centrifugal pump is characterized in that: described dividing plate combination (6) is made up of the first dividing plate positioning ring (23) that divides half formula structure and second partition positioning ring (24) and dividing plate (25).
6, barrel-type single suction multi-stage impeller symmetry stator formula centrifugal pump according to claim 1 and 2, it is characterized in that: the chamber that spues (20) of pump is the voluted type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200653427U CN201148980Y (en) | 2007-12-07 | 2007-12-07 | Barrel body type single-suction multilevel impeller symmetrical diffuser-type centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200653427U CN201148980Y (en) | 2007-12-07 | 2007-12-07 | Barrel body type single-suction multilevel impeller symmetrical diffuser-type centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201148980Y true CN201148980Y (en) | 2008-11-12 |
Family
ID=40116748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200653427U Expired - Fee Related CN201148980Y (en) | 2007-12-07 | 2007-12-07 | Barrel body type single-suction multilevel impeller symmetrical diffuser-type centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201148980Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498797A (en) * | 2013-09-23 | 2014-01-08 | 长沙佳能通用泵业有限公司 | Parallel type self-balancing multi-stage centrifugal pump |
| CN111927784A (en) * | 2020-07-31 | 2020-11-13 | 西安航天动力研究所 | Two-stage centrifugal pump structure |
| CN112253492A (en) * | 2020-09-08 | 2021-01-22 | 江苏大学 | Multistage low-temperature centrifugal pump with built-in motor |
-
2007
- 2007-12-07 CN CNU2007200653427U patent/CN201148980Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103498797A (en) * | 2013-09-23 | 2014-01-08 | 长沙佳能通用泵业有限公司 | Parallel type self-balancing multi-stage centrifugal pump |
| CN111927784A (en) * | 2020-07-31 | 2020-11-13 | 西安航天动力研究所 | Two-stage centrifugal pump structure |
| CN112253492A (en) * | 2020-09-08 | 2021-01-22 | 江苏大学 | Multistage low-temperature centrifugal pump with built-in motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20081112 Termination date: 20151207 |
|
| EXPY | Termination of patent right or utility model |