CN206495786U - A kind of low-flow high-lift centrifugal multistage pump multiple centrifugal pump - Google Patents
A kind of low-flow high-lift centrifugal multistage pump multiple centrifugal pump Download PDFInfo
- Publication number
- CN206495786U CN206495786U CN201621466965.0U CN201621466965U CN206495786U CN 206495786 U CN206495786 U CN 206495786U CN 201621466965 U CN201621466965 U CN 201621466965U CN 206495786 U CN206495786 U CN 206495786U
- Authority
- CN
- China
- Prior art keywords
- pump
- bushing
- throat
- bearing body
- drive end
- 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.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of low-flow high-lift centrifugal multistage pump multiple centrifugal pump, including suction casing, Spit Section, stage casing, stator, final stage stator, deflector, sealing ring, rod nut, rod bolt, drive end mechanical seal, anti-drive end mechanical seal, bracket, nockbush, first throat's bushing, second throat's bushing, guide vane bushing, impeller, non-driven-end bearing body, liquid back pipe, pump shaft, drive end bearing body, cold water cavity, pump case, balance set, sealing ring, the second groove, the first groove；There is projection on the outside of second throat of the present utility model bushing, nockbush is provided with metering hole, so that the axial force transmission that impeller is produced is on pump shaft, nockbush can prevent the sealing fluid in anti-drive end mechanical seal chamber from flowing to the relatively low pump chamber of pressure in large quantities, play throttling action, the stable maintenance of annular seal space pressure itself is also beneficial to, the conveying of industrial flow medium-small flow, the supercharging of paper mill high pressure washing, petrochemical process medium-small flow etc. is widely used in.
Description
Technical field
The utility model is related to centrifugation pump technical field, specifically, more particularly to a kind of low-flow high-lift it is multistage from
Heart pump.
Background technology
Centrifugal pump is that flow media enters from blade rotor root, and medium obtains centrifugal force, production by high-speed rotation blade
A raw high pressure, the medium conveying apparatus flowed out from pressure relief opening, centrifugal multistage pump multiple centrifugal pump is by with the more than two of said function
Pump gathers together, on fluid channel structure, shows that the medium pressure relief opening of the first order is communicated with the import of the second level, the second level
Medium pressure relief opening communicated with the import of the third level, the mechanism so connected forms centrifugal multistage pump multiple centrifugal pump.Centrifugal multistage pump multiple centrifugal pump, is used
The energy-efficient hydraulic model that country recommends, with energy-efficient, performance range is wide, operation safety and steady, low noise,
Long-life, it is convenient to install and maintain the advantages of；By changing the material of pump, seal form and increase cooling system, can convey hot water,
Oils, corrosivity and medium containing abrasive material etc..The meaning of centrifugal multistage pump multiple centrifugal pump is to improve lift, industrially widely used at present many
Level centrifugal pump, but the conveying of industrial flow medium-small flow, the increasing of paper mill high pressure washing, petrochemical process medium-small flow can not be met
The need for pressure.
Utility model content
Technical problem to be solved in the utility model is that there is provided a kind of rill for above-mentioned deficiency of the prior art
High-lift multi-stage centrifugal pump is measured, its compact conformation is safe and reliable.
The utility model solves the technical scheme that its technical problem used：A kind of low-flow high-lift multistage centrifugal
Pump, drive end bearing body is connected by axle sleeve with pump shaft, and drive end bearing body is provided with cold water cavity, and drive end mechanical seal is located at drive
On the right side of the bearing body of moved end, first throat's bushing is on the right side of drive end mechanical seal, and first throat's bushing is cylindrical barrel, the
It is connected on the inside of one throat's bushing with pump shaft, outside is connected with bracket, bracket on the left of entrance with being connected, deflector side and entrance
Section right side is connected, and opposite side is connected with casing ring, and some deflectors are provided with the pump housing, and deflector includes impeller, led
Leaf, stage casing, stator, impeller are located on the inside of stage casing, and impeller is fixedly connected by key with pump shaft, and stator passes through guide vane bushing and pump shaft
Connection, Spit Section is located on the right side of final stage stator, and balanced controls include balance set, second throat's bushing, sealing ring, second larynx
Portion's bushing is annular shape, and left side is provided with the first groove, and impeller is provided with protruding block, and protruding block is embedded in the first groove, the second larynx
The second groove is provided with the right side of portion's bushing, sealing ring is embedded in the second groove, has centre bore in second throat's bushing, be socketed on pump shaft
On, the balance set is tubular, and there is projection in outside, is fixedly connected with pump case, is provided with the inside of balance set in some grooves, balance set
There is movable space between on the outside of side and second throat's bushing, anti-drive end mechanical seal left end is provided with nockbush, throttling
Bushing is to be connected on the inside of cylindrical barrel structure, nockbush with pump shaft, and nockbush is provided with metering hole, non-driven-end bearing
Body is located on the right side of anti-drive end mechanical seal, pump shaft end, and cold water cavity is provided with non-driven-end bearing body, and rod bolt one end leads to
Cross rod nut and fix suction casing, the other end is fixed on Spit Section by rod nut, and liquid back pipe one end is connected with suction casing, separately
One end is connected with anti-drive end mechanical seal.
The drive end bearing body, non-driven-end bearing body design for self-lubricating, and lubricant is thin oil.
The drive end bearing body, non-driven-end bearing body are respectively equipped with cylinder roller bearing.
The utility model has advantages below compared with prior art：Second throat of the present utility model bushing employs spiral shell
Spin slot is designed, and nockbush is provided with metering hole so that in the axial force transmission that impeller is produced to pump shaft, nockbush can be prevented
Only the sealing fluid in anti-drive end mechanical seal chamber flows to the relatively low pump chamber of pressure in large quantities, plays throttling action, is also beneficial to
The stable maintenance of annular seal space pressure itself；Impeller, stator are molded for hot investment casting, and suction casing, Spit Section and stage casing are forging machine
Tool machine-shaping, hydraulic friction loss is low, and load performance is excellent, and the efficiency of pump is high, and mechanical seal is API682 standard sizes, can be pacified
Fill various forms of mechanical seals, bearing body is thin oil self-lubricating structure, the heat that can be produced in effective cooling bearing operating,
Improve bearing service life and security.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is enlarged drawing at A in Fig. 1；
In figure：1- suction casings, 2- Spit Sections, 3- stage casings, 4- stators, 5- final stage stators, 6- deflectors, 7- sealing rings, 8-
Rod nut, 9- rod bolts, 10- drive end mechanical seals, 11- anti-drive end mechanical seals, 12- brackets, 13- throttling linings
Set, the first throats of 14- bushing, the second throats of 15- bushing, 16- guide vane bushings, 17- impellers, 18- non-driven-end bearing bodies,
19- liquid back pipes, 20- pump shafts, 21- drive end bearing bodies, 22- cold water cavities, 23- pump cases, 24- balance sets, 25- sealing rings, 26-
Two grooves, the grooves of 27- first.
Embodiment
The utility model is described in further detail presently in connection with accompanying drawing.These accompanying drawings are simplified schematic diagram,
Only illustrate basic structure of the present utility model in a schematic way, therefore it only shows the composition relevant with the utility model.
As illustrated, a kind of low-flow high-lift centrifugal multistage pump multiple centrifugal pump, drive end bearing body is connected by axle sleeve with pump shaft, drive
Moved end bearing body is provided with cold water cavity, and drive end mechanical seal is on the right side of drive end bearing body, and first throat's bushing is located at driving
Hold on the right side of mechanical seal, first throat's bushing is to be connected on the inside of cylindrical barrel, first throat's bushing with pump shaft, outside and bracket
Connection, bracket on the left of entrance with being connected, and deflector side on the right side of entrance with being connected, and opposite side is connected with casing ring,
Some deflectors are provided with the pump housing, deflector includes impeller, stator, stage casing, and stator, impeller are located on the inside of stage casing, impeller
It is fixedly connected by key with pump shaft, stator is connected by guide vane bushing with pump shaft, Spit Section is located on the right side of final stage stator, balancing machine
Structure includes balance set, second throat's bushing, sealing ring, and second throat bushing is annular shape, and left side is provided with the first groove, leaf
Wheel is provided with protruding block, and protruding block is embedded in the first groove, is provided with the second groove on the right side of second throat's bushing, and sealing ring is embedded in the
In two grooves, there is centre bore in second throat's bushing, be socketed on pump shaft, the balance set is tubular, and there is projection in outside, with pump
Shell is fixedly connected, and some grooves are provided with the inside of balance set, are existed between balance set inner side and second throat's bushing outside movable
Space, anti-drive end mechanical seal left end is provided with nockbush, and nockbush is cylindrical barrel structure, on the inside of nockbush with
Pump shaft is connected, and nockbush is provided with metering hole, and non-driven-end bearing body is located on the right side of anti-drive end mechanical seal, pump shaft end
Cold water cavity is provided with end, non-driven-end bearing body, suction casing is fixed in rod bolt one end by rod nut, and the other end is by wearing
Thick stick nut is fixed on Spit Section, and liquid back pipe one end is connected with suction casing, and the other end is connected with anti-drive end mechanical seal.
The drive end bearing body, non-driven-end bearing body design for self-lubricating, and lubricant is thin oil.
The drive end bearing body, non-driven-end bearing body are respectively equipped with cylinder roller bearing.
The utility model preferred embodiment is explained in detail above in conjunction with accompanying drawing, but the utility model is not limited to
Above-mentioned embodiment, in the knowledge that those of ordinary skill in the art possess, can also not depart from the utility model
Made a variety of changes on the premise of objective.
Many other changes and remodeling can be made by not departing from spirit and scope of the present utility model.It should be appreciated that this reality
Specific embodiment is not limited to new, scope of the present utility model is defined by the following claims.
Claims (3)
1. a kind of low-flow high-lift centrifugal multistage pump multiple centrifugal pump, it is characterised in that drive end bearing body is connected by axle sleeve with pump shaft, drives
Moved end bearing body is provided with cold water cavity, and drive end mechanical seal is on the right side of drive end bearing body, and first throat's bushing is located at driving
Hold on the right side of mechanical seal, first throat's bushing is to be connected on the inside of cylindrical barrel, first throat's bushing with pump shaft, outside and bracket
Connection, bracket on the left of entrance with being connected, and deflector side on the right side of entrance with being connected, and opposite side is connected with casing ring,
Some deflectors are provided with the pump housing, deflector includes impeller, stator, stage casing, and stator, impeller are located on the inside of stage casing, impeller
It is fixedly connected by key with pump shaft, stator is connected by guide vane bushing with pump shaft, Spit Section is located on the right side of final stage stator, balancing machine
Structure includes balance set, second throat's bushing, sealing ring, and second throat bushing is annular shape, and left side is provided with the first groove, leaf
Wheel is provided with protruding block, and protruding block is embedded in the first groove, is provided with the second groove on the right side of second throat's bushing, and sealing ring is embedded in the
In two grooves, there is centre bore in second throat's bushing, be socketed on pump shaft, the balance set is tubular, and there is projection in outside, with pump
Shell is fixedly connected, and some grooves are provided with the inside of balance set, are existed between balance set inner side and second throat's bushing outside movable
Space, anti-drive end mechanical seal left end is provided with nockbush, and nockbush is cylindrical barrel structure, on the inside of nockbush with
Pump shaft is connected, and nockbush is provided with metering hole, and non-driven-end bearing body is located on the right side of anti-drive end mechanical seal, pump shaft end
Cold water cavity is provided with end, non-driven-end bearing body, suction casing is fixed in rod bolt one end by rod nut, and the other end is by wearing
Thick stick nut is fixed on Spit Section, and liquid back pipe one end is connected with suction casing, and the other end is connected with anti-drive end mechanical seal.
2. a kind of low-flow high-lift centrifugal multistage pump multiple centrifugal pump as claimed in claim 1, it is characterised in that the drive end bearing
Body, non-driven-end bearing body design for self-lubricating, and lubricant is thin oil.
3. a kind of low-flow high-lift centrifugal multistage pump multiple centrifugal pump as claimed in claim 1, it is characterised in that the drive end bearing
Body, non-driven-end bearing body are respectively equipped with cylinder roller bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621466965.0U CN206495786U (en) | 2016-12-29 | 2016-12-29 | A kind of low-flow high-lift centrifugal multistage pump multiple centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621466965.0U CN206495786U (en) | 2016-12-29 | 2016-12-29 | A kind of low-flow high-lift centrifugal multistage pump multiple centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206495786U true CN206495786U (en) | 2017-09-15 |
Family
ID=59801775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621466965.0U Active CN206495786U (en) | 2016-12-29 | 2016-12-29 | A kind of low-flow high-lift centrifugal multistage pump multiple centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206495786U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593886A (en) * | 2016-12-29 | 2017-04-26 | 镇江福泰克流体技术有限公司 | Small-flow high-lift multiple-stage centrifugal pump |
| CN111963442A (en) * | 2020-09-03 | 2020-11-20 | 江苏长江水泵有限公司 | Double-balance-hub-structure low-speed mining multistage centrifugal pump |
-
2016
- 2016-12-29 CN CN201621466965.0U patent/CN206495786U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593886A (en) * | 2016-12-29 | 2017-04-26 | 镇江福泰克流体技术有限公司 | Small-flow high-lift multiple-stage centrifugal pump |
| CN111963442A (en) * | 2020-09-03 | 2020-11-20 | 江苏长江水泵有限公司 | Double-balance-hub-structure low-speed mining multistage centrifugal pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204783844U (en) | Horizontal multistage centrifugal pump | |
| CN105626540B (en) | Sectional multi-stage centrifugal pump | |
| CN103225624A (en) | Double-casing symmetric type radial subdivision multiple-stage centrifugal pump | |
| CN101644269A (en) | High pressure centrifugal pump for desalinizing sea water | |
| CN206495786U (en) | A kind of low-flow high-lift centrifugal multistage pump multiple centrifugal pump | |
| CN102840142B (en) | The multi-stage shield pump that a kind of motor is put | |
| CN106246559B (en) | A kind of Double pump body double-suction type canned motor pump | |
| CN203214340U (en) | Double-shell symmetric radially-split multistage centrifugal pump | |
| CN202914322U (en) | Multi-stage canned pump with motor arranged on upper portion | |
| CN203146392U (en) | Rotary shell pump with flow collecting pipe adopting center bearing at two ends | |
| CN203394792U (en) | Energy-saving multistage deep well submersible and centrifugal pump | |
| CN101943178B (en) | Axial force balancing device of multi-stage pipeline pump | |
| CN106593886A (en) | Small-flow high-lift multiple-stage centrifugal pump | |
| CN204267280U (en) | A kind of Roots water pump of water lubrication gear | |
| CN208651178U (en) | A kind of energy saving centrifugal multistage pump multiple centrifugal pump of no balancing drum, balancing frame | |
| CN107435633B (en) | A kind of small-sized roots blower equipment of the airproof with water pump | |
| CN203822655U (en) | Pump for continuous reforming device | |
| CN205401146U (en) | Festival segmentation multistage centrifugal pump | |
| CN104265639A (en) | Gear speed increasing assembly type high speed rotating casing pump unit | |
| CN204805099U (en) | Bulb formula helical blade through -flow pump | |
| CN208804004U (en) | A kind of high-speed centrifugal pump with pumped (conveying) medium self-circulation system | |
| CN102720696A (en) | Preheating water pump | |
| CN108916057B (en) | High-speed centrifugal pump with conveying medium self-circulation system | |
| CN2718290Y (en) | Single-suction two stage centrifugal pump | |
| CN203655646U (en) | Vertical condensate pump provided with balance device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |