CN205823654U - A kind of centrifugal multistage pump multiple centrifugal pump with wear resistance balance device - Google Patents
A kind of centrifugal multistage pump multiple centrifugal pump with wear resistance balance device Download PDFInfo
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- CN205823654U CN205823654U CN201620822911.7U CN201620822911U CN205823654U CN 205823654 U CN205823654 U CN 205823654U CN 201620822911 U CN201620822911 U CN 201620822911U CN 205823654 U CN205823654 U CN 205823654U
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- stage casing
- wear resistance
- centrifugal
- pump
- axle
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Abstract
The utility model discloses a kind of centrifugal multistage pump multiple centrifugal pump with wear resistance balance device, including axle, bearing body, machine packing body, suction side, stage casing, impeller, stator, stage casing choma and Spit Section, described bearing body, machine packing body, suction side, stage casing, impeller, stator, stage casing choma and Spit Section are set in turn on described axle, it is provided with bascule on axle in described Spit Section, described bascule includes balance ring and the balancing frame set gradually, described balance ring selects Q235 steel to make, described balance ring outer surface thermal jet scribbles the nickel dam that 2.5 3.5mm are thick, described balancing frame uses spheroidal graphite cast-iron to make.The purpose of this utility model is to provide a kind of centrifugal multistage pump multiple centrifugal pump with wear resistance balance device, it is possible to pumped (conveying) medium contains grittiness granule and the most easy to wear, improves service life, reduces cost.
Description
Technical field
This utility model relates to a kind of centrifugal multistage pump multiple centrifugal pump with wear resistance balance device.
Background technology
Centrifugal multistage pump multiple centrifugal pump has axial force imbalance problem, for balancing axial thrust, needs to increase a bascule.Typically adopt
With balancing frame and balance ring, offset axial force, broadly fall into the quick-wear part of pump.Especially run into the field needing frequent starting pump
The service life that conjunction or pumped (conveying) medium contain grittiness granule, balancing frame and ring is the shortest, affects the normal operation of pump.Particularly contain
Sand medium, the grains of sand are bonded at balancing frame, loop interface, more can accelerated wear test, such as the balancing frame the most more renewed, ring, can cause
The damage of whole rotor part.Cause the biggest economic loss, but replacing is too frequent, can increase again economy and the people of user
Power cost.To there is no the occasion of stand-by pump, this situation, whole technological process can be had a strong impact on.
Utility model content
The purpose of this utility model is to provide a kind of centrifugal multistage pump multiple centrifugal pump with wear resistance balance device, it is possible to pumped (conveying) medium contains
There is grittiness granule and the most easy to wear, improve service life, reduce cost.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that
A kind of centrifugal multistage pump multiple centrifugal pump with wear resistance balance device of this utility model, including axle, bearing body, machine packing body, suction
Enter end, stage casing, impeller, stator, stage casing choma and Spit Section, described bearing body, machine packing body, suction side, stage casing, impeller, lead
Leaf, stage casing choma and Spit Section are set in turn on described axle, and the axle in described Spit Section is provided with bascule, described flat
Weighing apparatus device includes balance ring and the balancing frame set gradually, and described balance ring selects Q235 steel to make, described balance ring outer surface
Thermal jet scribbles the nickel dam that 2.5-3.5mm is thick, and described balancing frame uses spheroidal graphite cast-iron to make.
Further, described balance ring outer surface thermal jet scribbles the nickel dam that 3mm is thick.
Further, described balancing frame outer surface heat is coated with the nickel dam that 1mm is thick.
Compared with prior art, Advantageous Effects of the present utility model: balance ring selects Q235 material, and outer surface heat
Spraying nickel dam, tool has good wearability, and is greatly prolonged service life when pumped (conveying) medium contains grittiness granule, reduces the most more
The cost changed；Balancing frame uses spheroidal graphite cast-iron, and extexine same thermal spraying nickel dam, tool has good wearability.
Accompanying drawing explanation
The utility model is described in further detail in explanation below in conjunction with the accompanying drawings.
Fig. 1 be this utility model have wear resistance balance device structural representation；
Stage casing, Fig. 2 position choma structural representation.
Description of reference numerals: 1-axle, 2-bearing body, 3-machine packing body, 4=suction side, 5-stage casing, 6-impeller, 7-stator,
8-stage casing choma, 9-Spit Section, 10-balance ring, 11-balancing frame, 12-labyrinth structure.
Detailed description of the invention
As it is shown in figure 1, a kind of centrifugal multistage pump multiple centrifugal pump with wear resistance balance device, including axle 1, bearing body 2, machine packing body 3,
Suction side 4, stage casing 5, impeller 6, stator 7, stage casing choma 8 and Spit Section 9, described bearing body 2, machine packing body 3, suction side 4, in
Section 5, impeller 6, stator 7, stage casing choma 8 and Spit Section 9 are set in turn on described axle 1, it is characterised in that: described Spit Section 9
Being provided with bascule on interior axle 1, described bascule includes balance ring 10 and the balancing frame 11 set gradually, described balance
Ring 10 selects Q235 steel to make, and described balance ring 10 outer surface heat is coated with the nickel dam that 23mm is thick, and described balancing frame 11 uses ball
Ink cast iron is made, and described balancing frame 11 outer surface heat is coated with the nickel dam that 1mm is thick.
As in figure 2 it is shown, be provided with the labyrinth structure 12 of multiple raised line composition on choma 8 inwall of described stage casing, use this
Structure, when medium passes through, some medium can be saved in labyrinth, adds the lubrication between impeller and choma, and reduces
Rubbing surface.When there being impurity, it is possible to enter in labyrinth, effectively buffer abrasion.
Centrifugal multistage pump multiple centrifugal pump of the present utility model contains the operating mode of grittiness granule in the occasion of frequent starting pump or pumped (conveying) medium
Under, its bascule has good wearability, and compared to the prior art, the service life of balancing frame and balance ring significantly increases
Add, changed once by original about 6 months, extend to change once for about 18 months.When containing husky medium, can be left by 2 months
Right replacing once, extends to change once for about 15 months.This technology tries out 2 years at Changqing oilfields, and effect is clearly.Significantly
Reduce and change balance ring and the cost of balancing frame.
Embodiment described above is only to be described optimal way of the present utility model, not to of the present utility model
Scope is defined, and on the premise of without departing from this utility model design spirit, those of ordinary skill in the art are new to this practicality
Various deformation that the technical scheme of type is made and improvement, all should fall into the protection domain that this utility model claims determine
In.
Claims (4)
1. a centrifugal multistage pump multiple centrifugal pump with wear resistance balance device, it is characterised in that: include axle (1), bearing body (2), machine packing
Body (3), suction side (4), stage casing (5), impeller (6), stator (7), stage casing choma (8) and Spit Section (9), described bearing body (2),
Machine packing body (3), suction side (4), stage casing (5), impeller (6), stator (7), stage casing choma (8) and Spit Section (9) set gradually
On described axle (1), it is characterised in that: it is provided with bascule, described bascule on the axle (1) in described Spit Section (9)
Including the balance ring (10) set gradually and balancing frame (11), described balance ring (10) selects Q235 steel to make, described balance ring
(10) outer surface heat is coated with the nickel dam that 2.5-3.5mm is thick, and described balancing frame (11) uses spheroidal graphite cast-iron to make.
The centrifugal multistage pump multiple centrifugal pump with wear resistance balance device the most according to claim 1, it is characterised in that: described balance ring
(10) outer surface heat is coated with the nickel dam that 3mm is thick.
The centrifugal multistage pump multiple centrifugal pump with wear resistance balance device the most according to claim 1, it is characterised in that: described balancing frame
(11) outer surface heat is coated with the nickel dam that 1mm is thick.
The centrifugal multistage pump multiple centrifugal pump with wear resistance balance device the most according to claim 1, it is characterised in that: described stage casing choma
(8) labyrinth structure (12) of multiple raised line composition it is provided with on inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620822911.7U CN205823654U (en) | 2016-08-02 | 2016-08-02 | A kind of centrifugal multistage pump multiple centrifugal pump with wear resistance balance device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620822911.7U CN205823654U (en) | 2016-08-02 | 2016-08-02 | A kind of centrifugal multistage pump multiple centrifugal pump with wear resistance balance device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205823654U true CN205823654U (en) | 2016-12-21 |
Family
ID=57556854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620822911.7U Active CN205823654U (en) | 2016-08-02 | 2016-08-02 | A kind of centrifugal multistage pump multiple centrifugal pump with wear resistance balance device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205823654U (en) |
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2016
- 2016-08-02 CN CN201620822911.7U patent/CN205823654U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |