CN208651178U - A kind of energy saving centrifugal multistage pump multiple centrifugal pump of no balancing drum, balancing frame - Google Patents
A kind of energy saving centrifugal multistage pump multiple centrifugal pump of no balancing drum, balancing frame Download PDFInfo
- Publication number
- CN208651178U CN208651178U CN201821235425.0U CN201821235425U CN208651178U CN 208651178 U CN208651178 U CN 208651178U CN 201821235425 U CN201821235425 U CN 201821235425U CN 208651178 U CN208651178 U CN 208651178U
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- Prior art keywords
- impeller
- pump
- bearing
- balancing
- guide vane
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- 230000000694 effects Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001264 neutralization Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Abstract
The energy saving centrifugal multistage pump multiple centrifugal pump of a kind of no balancing drum, balancing frame, which includes pump shaft, bearing body, bearing, suction casing, twoport ring impeller, first-level guide blade, middle section, impeller balance hole, wicket gate seal ring, guide vane, Spit Section, axle sleeve, bearing interstage sleeve；The bearing of the centrifugal multistage pump multiple centrifugal pump application is that driving end uses cylinder roller bearing, and end uses deep groove ball bearing；At least two-stage twoport ring impeller is provided on the pump shaft, the rear-wheel hub of every one stage impeller is equipped with impeller balance hole at pump shaft, is fixed with wicket gate seal ring on the guide vane between the rear-wheel hub and guide vane of impeller.Since impeller balance hole is arranged in the centrifugal multistage pump multiple centrifugal pump on impeller, wicket gate seal ring is secured on guide vane between the rear-wheel hub and guide vane of impeller, axial force can be substantially eliminated, residual axial force is born by a pair of of deep groove ball bearing, realize the self-balancing of axial force, the service life and working efficiency for improving pump, reach energy-saving effect.
Description
Technical field
The utility model relates to a kind of centrifugal multistage pump multiple centrifugal pump, the energy saving of specifically a kind of no balancing drum, balancing frame
Centrifugal multistage pump multiple centrifugal pump.
Background technique
Multistage centrifugal pump configuration is simple, is widely used, but due to its impeller two sides, fluid pressure is unevenly distributed in use,
An axial force parallel with pump shaft axis can be generated, impeller eye is directed toward in direction.The especially impeller of centrifugal multistage pump multiple centrifugal pump
Number is more, and axial force generates more serious.In order to eliminate axial force, balancing drum or balancing frame device are generallyd use to carry out
Balance.Balancing drum balancing axial thrust is in impeller wheel disc side using balancing drum structure, but balancing drum two sides pressure difference is larger,
Causing balancing drum gap location, there are biggish liquid leakages, so that the volumetric efficiency of centrifugal pump is lower；Simultaneously in impeller shafts at different levels
To under the action of power, transmission shaft is under compression bar state and runs, serious wear at choma, and service life is low.Balancing frame balance shaft
Xiang Li is in impeller wheel disc side using autobalance dish structure, but must using the centrifugal pump shafting rotor of balancing disc structure
There must be certain axial movement value, the axial float of shafting rotor is unfavorable for shaft end seal, so that shaft end seal is vulnerable；Together
When shafting rotor axial float be easy to cause the abrasion between rotor part and stator part；In addition the axial direction of shafting rotor is altered
It moves so that centrifugal pump when starting, stopping or flow lift change, can generate impact and collision, increase part friction mill
Damage, causes balancing frame to be easily damaged, needs to be replaced frequently, reduce the service life of centrifugal pump, increase the maintenance cost of centrifugal pump.
Summary of the invention
In order to solve the deficiencies in the prior art, the purpose of the utility model is to provide a kind of no balancing drums, the section of balancing frame
It can novel multistage centrifugal pump.Realize that the self-balancing of axial force reaches energy saving effect to improve the service life and working efficiency of pump
Fruit.
Realize the purpose of this utility model the technical solution adopted is that: the centrifugal multistage pump multiple centrifugal pump includes pump shaft, bearing body, axis
It holds, suction casing, twoport ring impeller, first-level guide blade, middle section, impeller balance hole, wicket gate seal ring, guide vane, Spit Section, axle sleeve, axis
Hold interstage sleeve；The bearing of the centrifugal multistage pump multiple centrifugal pump application is that driving end uses cylinder roller bearing, and end uses deep-groove ball axis
It holds；At least two-stage twoport ring impeller is provided on the pump shaft, the rear-wheel hub of every one stage impeller is flat equipped with impeller at pump shaft
It weighs hole, is fixed with wicket gate seal ring on the guide vane between the rear-wheel hub and guide vane of impeller.
The beneficial effects of the utility model are: since the centrifugal multistage pump multiple centrifugal pump is to eliminate traditional balancing drum, balancing frame flat
Weigh device, and impeller balance hole is arranged on impeller, secures wicket gate seal on the guide vane between the rear-wheel hub and guide vane of impeller
Ring can substantially eliminate axial force, and residual axial force is born by a pair of of deep groove ball bearing, realize the self-balancing of axial force, improve pump
Service life and working efficiency, reach energy-saving effect.The pump balancing axial thrust effect is more preferable, improves pump volumetric efficiency, public
The impeller and guide vane waterpower mold for having opened optimization, improve the hydraulic efficiency of water pump, solve biography in the case where not increasing cost reasons
System centrifugal multistage pump multiple centrifugal pump balancing frame, balance ring frequently replace problem, it is ensured that water pump operation is steady reliable efficient.
Detailed description of the invention
Fig. 1 be a kind of no balancing drum of the utility model, balancing frame energy saving centrifugal multistage pump multiple centrifugal pump sectional structure chart.
Specific embodiment
In the accompanying drawings, the energy saving centrifugal multistage pump multiple centrifugal pump of a kind of no balancing drum of the utility model, balancing frame, the multistage centrifugal
Pump is close including pump shaft, bearing body, bearing, suction casing 2, twoport ring impeller 3, first-level guide blade 4, middle section 5, impeller balance hole 6, guide vane
Seal ring 7, guide vane 8, Spit Section 9, axle sleeve, bearing interstage sleeve；The bearing of the centrifugal multistage pump multiple centrifugal pump application is that driving end uses cylinder
Roller bearing 1, end use deep groove ball bearing 10；At least two-stage twoport ring impeller 3, every one stage impeller are provided on the pump shaft
3 rear-wheel hub is equipped with impeller balance hole 6 at pump shaft, is fixed with guide vane on the guide vane between the rear-wheel hub and guide vane 8 of impeller 3
Sealing ring 7.Since impeller balance hole being arranged on impeller, secures and lead on the guide vane between the rear-wheel hub and guide vane of impeller
Leaf sealing ring can substantially eliminate axial force, and residual axial force is born by a pair of of deep groove ball bearing, realize the self-balancing of axial force.
The centrifugal multistage pump multiple centrifugal pump is without disc friction caused by balancing drum, balancing frame again without equilibrium reflux loss and impeller has long-term fortune
Row improves 5% or more to neutral constant feature, than the conventional multi-level efficiency of pump, novel energy-conserving.
Claims (1)
1. the energy saving centrifugal multistage pump multiple centrifugal pump of a kind of no balancing drum, balancing frame, which includes pump shaft, bearing body, axis
It holds, suction casing (2), twoport ring impeller (3), first-level guide blade (4), middle section (5), impeller balance hole (6), wicket gate seal ring (7), lead
Leaf (8), Spit Section (9), axle sleeve, bearing interstage sleeve；It is characterized by: the bearing that the centrifugal multistage pump multiple centrifugal pump is applied is, end is driven
Using cylinder roller bearing (1), end uses deep groove ball bearing (10)；At least two-stage twoport ring impeller is provided on the pump shaft
(3), the rear-wheel hub of every one stage impeller (3) is equipped with impeller balance hole (6) at pump shaft, the rear-wheel hub of impeller (3) and guide vane (8)
Between guide vane on be fixed with wicket gate seal ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821235425.0U CN208651178U (en) | 2018-07-26 | 2018-07-26 | A kind of energy saving centrifugal multistage pump multiple centrifugal pump of no balancing drum, balancing frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821235425.0U CN208651178U (en) | 2018-07-26 | 2018-07-26 | A kind of energy saving centrifugal multistage pump multiple centrifugal pump of no balancing drum, balancing frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208651178U true CN208651178U (en) | 2019-03-26 |
Family
ID=65788027
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821235425.0U Active CN208651178U (en) | 2018-07-26 | 2018-07-26 | A kind of energy saving centrifugal multistage pump multiple centrifugal pump of no balancing drum, balancing frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208651178U (en) |
-
2018
- 2018-07-26 CN CN201821235425.0U patent/CN208651178U/en active Active
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