CN205533288U - Double -suction multi -stage centrifugal pump - Google Patents
Double -suction multi -stage centrifugal pump Download PDFInfo
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- CN205533288U CN205533288U CN201620295225.9U CN201620295225U CN205533288U CN 205533288 U CN205533288 U CN 205533288U CN 201620295225 U CN201620295225 U CN 201620295225U CN 205533288 U CN205533288 U CN 205533288U
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- double
- suction
- impeller
- bearing
- stage
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Abstract
The utility model provides a double -suction multi -stage centrifugal pump, including shell structure with set up the rotor part in shell structure, the rotor part includes the main shaft to and set gradually in main epaxial bearing, bearing spacer sleeve, axle sleeve, positive induction wheel, positive runner impeller, impeller bush, palirrhea impeller, anti - inducer, axle sleeve, bearing spacer sleeve and bearing, shell structure includes bearing body, first suction casing, middle section, positive runner stator, goes out water section and double suction inlet tube, bearing body, first suction casing, middle section, positive runner stator and double suction inlet tube be fixed the setting in proper order. The double -suction multi -stage centrifugal pump of this structure compares with the centrifugal pump of current structure and since be provided with can show send the cavitation erosion performance just, anti - inducer, have that the resistance is little, the flow is big, the lift is high and easy dismounting's advantage, the pump sending is efficient, production and low in manufacturing cost.
Description
Technical field
This utility model relates to field of hydraulic machinery, particularly to a kind of double-suction multi-stage centrifugal pump.
Background technology
Centrifugal multistage pump multiple centrifugal pump can realize higher lift, is currently in pump industry conventional hydraulic, but,
Most of multistage pumps, owing to using single suction water inlet, easily produce cavitation in the case of big flow, are difficult to
Realize big flow.Conventional multistage pump is usually and is balanced its axial force by balancing frame, and bearing own does not undertake axle
Xiang Li, and pump is operationally, and operating mode can occur small change, and makes balancing frame and balance ring ceaselessly
Contact, abrasion, cause equipment irregular operation, even injure the safe operation of whole equipment.Meanwhile,
Owing to wanting balancing axial thrust, some leaked water, understand some volumetric loss, efficiency can decrease.
Conventional clear water multistage pump is mono-hull, and maintenance need to dismantle inlet and outlet pipe lines, adds the biggest work
Amount.
Used double-suction multi-stage pump at present, although can realize big flow and run, in operation, axial force is the most flat
Weighing apparatus, keeps in repair also without dismounting pipeline, but due to this body structure, is difficulty with high-lift, when super
When crossing the lift of 180 meters, the efficiency of pump itself can reduce, and manufacture difficulty and production cost can be greatly promoted.
Therefore, how to provide a kind of flow big, high-lift and the efficient double-suction centrifugal multistage pump multiple centrifugal pump of easy accessibility,
Become those skilled in the art to need badly to solve the technical problem that.
Utility model content
Based on the deficiencies in the prior art, problem to be solved in the utility model be how to provide a kind of flow big,
High-lift and the efficient double-suction centrifugal multistage pump multiple centrifugal pump of easy accessibility.
For solving above-mentioned technical problem, this utility model provides a kind of double-suction multi-stage centrifugal pump, ties including shell
Structure and the rotor part being arranged in shell mechanism, described rotor part includes main shaft, and sets gradually
Bearing on described main shaft, bearing interstage sleeve, axle sleeve, positive induction wheel, positive flow passage impeller, impeller lining
Set, anti-flow passage impeller, anti-inducer, axle sleeve, bearing interstage sleeve and bearing；Described shell mechanism includes
Bearing body, the first suction casing, stage casing, positive flow passage impeller, water exit end and double suction water inlet pipe, described bearing body,
First suction casing, stage casing, positive runner stator, water exit end, and double suction water inlet pipe are fixedly installed successively.
As the improvement on the one hand of a kind of double-suction multi-stage centrifugal pump of this utility model, described double-suction multi-stage is centrifuged
Also include flow passage components, described flow passage components include being arranged at the reflux road stator on the right side of described water inlet-outlet segment,
Anti-flow passage impeller, reflux road first stage impeller, anti-inducer, described reflux road stator, anti-flow passage impeller, anti-
Runner first stage impeller, anti-inducer set gradually.
As the improvement on the one hand of a kind of double-suction multi-stage centrifugal pump of this utility model, described bearing, bearing keep off
Set, axle sleeve, positive induction wheel, positive flow passage impeller, impeller buss, anti-flow passage impeller, anti-inducer,
Axle sleeve, bearing interstage sleeve and bearing are fixedly installed on described main shaft by flat key.
As the improvement on the one hand of a kind of double-suction multi-stage centrifugal pump of this utility model, described double-suction multi-stage is centrifuged
Pump also includes motor, and the output shaft of described motor is fixing with one end of described main shaft to be connected.
As the improvement on the one hand of a kind of double-suction multi-stage centrifugal pump of this utility model, described double-suction multi-stage is centrifuged
Pump also includes water inlet vertically disposed with described main shaft and outlet, described water inlet and described outlet
Centrage overlaps or parallel.
The double-suction multi-stage centrifugal pump of said structure, including shell mechanism and the rotor portions being arranged in shell mechanism
Part, rotor part includes main shaft, and be set in turn on main shaft bearing, bearing interstage sleeve, axle sleeve,
Positive induction wheel, positive flow passage impeller, impeller buss, anti-flow passage impeller, anti-inducer, axle sleeve, bearing
Interstage sleeve and bearing；Shell mechanism includes bearing body, the first suction casing, stage casing, positive runner stator, water exit end
And double suction water inlet pipe, bearing body, the first suction casing, stage casing, positive runner stator and double suction water inlet pipe are solid successively
Fixed setting.The double-suction multi-stage centrifugal pump of this structure, compared with the centrifugal pump of existing structure, can owing to being provided with
Notable anti-, the positive induction wheel sending cavitation erosion performance, has that resistance is little, flow is big, lift is high and easy accessibility
Advantage, pumping efficiency is high, produces and low cost of manufacture.
Accompanying drawing explanation
The accompanying drawing constituting a part of the present utility model is further appreciated by of the present utility model for providing, this
The schematic description and description of utility model is used for explaining this utility model, is not intended that this practicality new
The improper restriction of type.
Fig. 1 is the section view signal of a kind of double-suction multi-stage centrifugal pump of utility model.
Reference corresponding relation:
1 main shaft 2 bearing 3 bearing body
4 positive induction wheel 5 first suction casing 6 pull bars
The 7 positive runner stators of the positive positive flow passage impeller of runner first stage impeller 89
The 10 water exit end 11 reflux road anti-flow passage impellers of stator 12
13 reflux road first stage impeller 14 anti-inducer 15 second suction casings
16 axle sleeve 17 double suction water inlet pipe 18 stage casings
Detailed description of the invention
It should be noted that in the case of not conflicting, in embodiment in this utility model and embodiment
Feature can be mutually combined.Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As it is shown in figure 1, this utility model pump case structure is: bearing body the 3, first suction casing 5, equipped with end
The water exit end 10 of level stator, equipped with the stage casing 18 of stator, its quantity determines according to pressure size, wherein, the
One suction casing 5, bearing body 3, using the centrage of water exit end 10 as reference symmetry line, both sides are in the most right
The arrangement claimed, by 6 the first suction casings 5 of pull bar, stage casing 18, water exit end the 10, second suction casing
15 are fixed.The bearing body 3 at two ends is solid with bolt and the first suction casing 5 and the second suction casing 15 respectively
Fixed connection.
Rotor part structure includes main shaft 1, bearing 2, bearing interstage sleeve, axle sleeve 16, positive induction wheel 4, just flows
Road impeller 8, impeller buss, anti-flow passage impeller 12, anti-inducer 14, axle sleeve 16, bearing interstage sleeve and bearing
2, and, main shaft 1, bearing 2, bearing interstage sleeve, axle sleeve 16, positive induction wheel 4, positive flow passage impeller 8,
Impeller buss, anti-flow passage impeller 12, anti-inducer 14, axle sleeve 16, bearing interstage sleeve and bearing 2 set successively
Putting, two ends are fixed by locking nut, and main shaft 1 is provided with multiple flat key, bearing 2, bearing interstage sleeve, axle
Set 16, positive induction wheel 4, positive flow passage impeller 8, impeller buss, anti-flow passage impeller 12, anti-inducer 14,
Axle sleeve 16, bearing interstage sleeve and bearing 2 are arranged on main shaft 1 by flat key respectively.
Double-suction multi-stage centrifugal pump also includes motor, and the output shaft of motor is fixing with one end of main shaft 1 to be connected, logical
Cross the acting of motor direct-drive rotor part.Two groups of impellers are with the full symmetric layout in midpoint of impeller buss, often
The performance parameter of individual impeller is the most identical, and two groups of impeller sets are contained in above same axis, positive flow passage impeller 8
Group and anti-flow passage impeller 12 groups are parallel runnings, 8 groups of left sides at scantling plan water exit end 10 of positive flow passage impeller
Side, and 12 groups of right sides at water exit end 10 of anti-flow passage impeller.Furthermore, it is necessary to explanation, double-suction multi-stage
Centrifugal pump also includes the first suction casing 5 and the second suction casing 15 being arranged at two ends, and two bearing bodies 3 are relative
It is arranged on main shaft 1.
In Fig. 1, the arrow of labelling gives water (flow) direction, and water is from the double suction water inlet pipe 17 of double-suction multi-stage centrifugal pump
Flow into first suction casing 5 and second suction casing 15 on both sides, respectively enter positive flow passage impeller 8 groups and reflux road
12 groups of impeller, first flows into positive runner first stage impeller 7 and reflux road first stage impeller 13, it should be noted that
The pump of big flow is preposition equipped with inducer at first stage impeller, then passes through positive runner stator 9 and reflux road is led
Leaf 11, the namely working chamber of pump, i.e. high pressure chest, enter back into next group impeller vane, by that analogy, often
Flowing through an impeller, pressure doubles, and forms pressure superposition.Until the current of two groups of maximum pressures import
Delivery side of pump chamber, after flow out through delivery side of pump, form complete set pressure conveying flow process.
The maintenance of double-suction multi-stage centrifugal pump and maintenance:
This utility model double-suction multi-stage centrifugal pump is imported and exported at the two ends up and down of same part owing to have employed,
Being distributed in both sides equipped with two groups of impellers of inducer and stage casing 18 symmetry, maintenance of equipment need not dismounting pipe
Road, so to the maintenance of double-suction multi-stage centrifugal pump with maintain very convenient.
First take off all of coupling pin when of maintenance, then dismantle intermediate shaft coupling, then lay down pump connection
Axial organ, come loose all of turnbuckle, then dismounting reflux road water conservancy diversion group and impeller sets that all zero
Part, then dismantle positive runner this water conservancy diversion group and positive flow passage impeller 8 groups.And when assembling, its order with tear open
Unload program contrary.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model,
All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, all
Within protection domain of the present utility model should be included in.
Claims (5)
1. a double-suction multi-stage centrifugal pump, including shell mechanism and the rotor part being arranged in shell mechanism,
It is characterized in that, described rotor part includes main shaft (1), and is set in turn in described main shaft (1)
On bearing (2), bearing interstage sleeve, axle sleeve (16), positive induction wheel (4), positive flow passage impeller (8),
Impeller buss, anti-flow passage impeller (12), anti-inducer (14), axle sleeve (16), bearing interstage sleeve and
Bearing (2)；
Described shell mechanism includes that bearing body (3), the first suction casing (5), stage casing (18), positive runner are led
Leaf (9), water exit end (10) and double suction water inlet pipe (17), described bearing body (3), the first suction casing (5),
Stage casing (18), positive runner stator (9), water exit end (10) and double suction water inlet pipe (17) are fixedly installed successively.
Double-suction multi-stage centrifugal pump the most according to claim 1, it is characterised in that described double-suction multi-stage from
The heart also includes that flow passage components, described flow passage components include being arranged at the reflux road on described water exit end (10) right side
Stator (11), anti-flow passage impeller (12), reflux road first stage impeller (13), anti-inducer (14), described
Reflux road stator (11), anti-flow passage impeller (12), reflux road first stage impeller (13) and anti-inducer (14)
Set gradually.
Double-suction multi-stage centrifugal pump the most according to claim 1, it is characterised in that described bearing (2),
Bearing interstage sleeve, axle sleeve (16), positive induction wheel (4), positive flow passage impeller (8), impeller buss, anti-
Flow passage impeller (12), anti-inducer (14), axle sleeve (16), bearing interstage sleeve and bearing (2) pass through
Flat key is fixedly installed on described main shaft (1).
Double-suction multi-stage centrifugal pump the most according to claim 2, it is characterised in that described double-suction multi-stage
Centrifugal pump also includes motor, and the output shaft of described motor is fixing with one end of described main shaft (1) to be connected.
Double-suction multi-stage centrifugal pump the most according to claim 4, it is characterised in that described double-suction multi-stage from
Heart pump also includes and described main shaft (1) vertically disposed water inlet and outlet, described water inlet and described go out
The centrage at the mouth of a river overlaps or parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620295225.9U CN205533288U (en) | 2016-04-11 | 2016-04-11 | Double -suction multi -stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620295225.9U CN205533288U (en) | 2016-04-11 | 2016-04-11 | Double -suction multi -stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205533288U true CN205533288U (en) | 2016-08-31 |
Family
ID=56790998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620295225.9U Expired - Fee Related CN205533288U (en) | 2016-04-11 | 2016-04-11 | Double -suction multi -stage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205533288U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782066A (en) * | 2016-04-11 | 2016-07-20 | 郭学文 | Double-suction and multi-stage centrifugal pump |
| CN107559211A (en) * | 2017-09-04 | 2018-01-09 | 四川宇康供水设备有限公司 | It is conveniently replaceable the centrifugal multistage pump multiple centrifugal pump of flabellum |
| CN108457895A (en) * | 2018-01-09 | 2018-08-28 | 黄昌金 | A kind of axis stream opposite direction turbine |
-
2016
- 2016-04-11 CN CN201620295225.9U patent/CN205533288U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105782066A (en) * | 2016-04-11 | 2016-07-20 | 郭学文 | Double-suction and multi-stage centrifugal pump |
| CN107559211A (en) * | 2017-09-04 | 2018-01-09 | 四川宇康供水设备有限公司 | It is conveniently replaceable the centrifugal multistage pump multiple centrifugal pump of flabellum |
| CN108457895A (en) * | 2018-01-09 | 2018-08-28 | 黄昌金 | A kind of axis stream opposite direction turbine |
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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: 20170519 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 |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 Termination date: 20200411 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |