CN107795490A - High-lift single-stage double-suction centrifugal pump - Google Patents
High-lift single-stage double-suction centrifugal pump Download PDFInfo
- Publication number
- CN107795490A CN107795490A CN201710981342.XA CN201710981342A CN107795490A CN 107795490 A CN107795490 A CN 107795490A CN 201710981342 A CN201710981342 A CN 201710981342A CN 107795490 A CN107795490 A CN 107795490A
- Authority
- CN
- China
- Prior art keywords
- pump
- dress
- seat
- stage double
- suction
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/006—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps double suction pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/086—Sealings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/445—Fluid-guiding means, e.g. diffusers especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
Abstract
The invention provides a kind of high-lift single-stage double-suction centrifugal pump, including pump cover, pump seat and rotor portions dress, the pump cover is covered on the pump seat, run through the rotor portions dress in the pump seat, the both ends of the rotor portions dress pass the pump seat, the rotor portions, which are loaded onto, is provided with a double-sided impeller, the both ends of the rotor portions dress are separately installed with front axle bearing portion dress and rear bearing portion dress, between the front axle bearing portion dress and the pump seat, after described oil blocking cover is equipped between bearing portion dress and the pump seat, the impeller and the pump seat, sealing ring before impeller is equipped between pump cover, low-pressure end annular seal space sealing ring；The high-lift single-stage double-suction centrifugal pump has two suction chambers, a pumping chamber, and the delivery chamber is arranged among the pump housing.Sealing of the present invention is good, it is not easy to pollutes environment, compact-sized, easy to maintenance, efficiency is higher, and anti-cavitation performance is preferably and safe and reliable, service life length.
Description
Technical field
The present invention relates to a kind of pump, more particularly to a kind of high-lift single-stage double-suction centrifugal pump.
Background technology
Single-stage double-suction pump refers to use an impeller, and impeller is double feed inlet, and its lift can reach very high (single-stage lift
268m), a kind of centrifugal pump of the rotation acquisition centrifugal force and by impeller.Existing horizontal split pump is bulky, lift
It is low, efficiency is low, anti-cavitation performance is poor, and can not meet multi-state requirement, the support of pump is foot support, anti seismic efficiency
Difference, so as to influence the service life of the consumable accessorys such as pump bearing and mechanical seal.
The content of the invention
It is an object of the invention to provide a kind of high-lift single-stage double-suction centrifugal pump, to solve lacking in above-mentioned background technology
Point.
In order to achieve the above object, this invention takes following technical scheme：
A kind of high-lift single-stage double-suction centrifugal pump, including pump cover, pump seat and rotor portions dress, the pump cover are covered on the pump seat,
Run through the rotor portions dress in the pump seat, the both ends of the rotor portions dress pass the pump seat, and the rotor portions load onto peace
Equipped with a double-sided impeller, the both ends of the rotor portions dress are separately installed with front axle bearing portion dress and rear bearing portion dress, before described
Bearing portion is filled being equipped with oil blocking cover, the impeller and institute between the pump seat, between the rear bearing portion dress and the pump seat
State and sealing ring, low-pressure end annular seal space sealing ring before impeller are equipped between pump seat, pump cover；The high-lift single-stage double-suction centrifugal pump
There are two suction chambers, a pumping chamber, the pumping chamber is arranged among the pump housing, and the suction chamber is symmetrically distributed in pumping chamber
Both sides；Suction, discharge opening pump seat both sides horizontal level below axis, pump both ends are low-pressure end, and high-pressure section goes out pump
Mouth is the middle of pump.
In the present invention, oil draining system and drainage are connected with the pump seat.The pump cover and deflation rinse-system phase
Even.The oil draining system, drainage and deflation rinse-system are all connected with same outlet.The high-lift single-stage double-suction from
Line supports centered on heart pump.
The beneficial effects of the invention are as follows：The present invention can multi-state set operation (protocol requirement minimum discharge 650m3/h,
Efficiency is 69.7%, metered flow 1100m3/h, efficiency 80.5%, maximum stream flow 1400m3//h, efficiency 79%), and
Operational excellence, while rectangularl runner structure is used, Volute Design spiral case form in pairs, it can substantially balance radial load, while energy
The vibration of pump is reduced, improves the service life of bearing and sealing, the structure type of pump is opens in level, suction, discharge opening are in axle
Pump seat both sides horizontal level below line, the layout complete equipilibrium of double-sided impeller axial force.Supporting way is changed to center line branch
Support, it is effectively improved the performance of pump operating.Compact-sized, good appearance, hydraulic efficiency and anti-cavitation performance are higher.
Brief description of the drawings
Fig. 1 is the structure chart of one embodiment of the present of invention；
Fig. 2 is the left view of one embodiment of the present of invention.
Embodiment
The present invention is further described for explanation and embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, high-lift single-stage double-suction centrifugal pump of the invention includes pump cover 7, pump seat 6 and rotor portions and fills 3, described
Pump cover 7 is covered on the pump seat 6, and the rotor portions are run through in the pump seat 6 and fill 3, the both ends that the rotor portions fill 3 pass institute
Pump seat 6 is stated, the rotor portions fill and a double-entry impeller 16 is provided with 3, and the runner is rectangularl runner, and the rotor portions fill 3
Both ends be separately installed with front axle bearing portion fill 2 and rear bearing portion fill 12, the front axle bearing portion fills between 2 and the pump seat 6, is described
Bearing portion fills and oil blocking cover is equipped between 12 and the pump seat 6 afterwards, is equipped between the impeller 16 and the pump seat 6, pump cover 7
Sealing ring 9, low-pressure end annular seal space sealing ring 8 before impeller.The high-lift single-stage double-suction centrifugal pump has two suction chambers, a pressure
Hydroecium, the pumping chamber are arranged among the pump housing.In accompanying drawing 1,1 is that shaft coupling portion fills, and 4 be bearing gland, and 11 be packaging type machine
Tool seals.
In the present invention, oil draining system 13 and drainage 14 are connected with the pump seat, the pump cover 7 rinses system with deflating
System 10 is connected, and the oil draining system 13, drainage 14 and deflation rinse-system 10 are all connected with same outlet.It is described to soar
Line supports centered on journey single-stage double-suction centrifugal pump.
Huge type is till now in equal volume from traditional integral pump pin, water-cooling type bearing body, single spiral case for the structure of the present invention
The compact type pumps such as split type technique pump pin 15, alternative type of cooling (water cooling, air-cooled, natural cooling), double volute,
Not only make the profile of pump more attractive, and further increase the reliability of pump.
In the present invention, the suction inlet and discharge opening of high-lift single-stage double-suction centrifugal pump enter on fixed pump seat to pump
During row maintenance, without detaching pipelines and motor, and when maintenance replacing mechanical seal and bearing, it is not required to tamper pump seat and pump cover,
Dismount extremely simple.The runner of pump uses scroll casing type, rather than the guide-vane of general centrifugal pump pump, therefore pump can keep higher water
Force efficiency, and the high efficient district of pump is wide, the efficiency of pump is up to state standards more than A lines or A lines.
The high-lift single-stage double-suction centrifugal pump of the present invention is η=78% by the efficiency A lines of the national standard pump, and B lines are
70%, pass through the complete machine compbined test of my test center of company：Pump of the present invention is a kind of efficient, single-stage, high-lift oil transportation centrifugation
Pump, unit have high efficiency, high reliability, high-quality manufacturing process, and pump efficiency is more than 80% (and specific speed only has 64), efficiency high
In national A line standards；Maximum vibration values are only 2.7mm/s, less than same kind of products at abroad standard.Suction inlet and discharge opening are each provided at
On pump seat so that maintenance is not required to dismantle pipeline, pump seat, motor and pump cover when changing mechanical seal, easy to maintenance fast.
Bearing body part is made up of parts such as bearing body, bearing gland, sliding bearings.Bearing arrangement is entirely by reference to API610
Standard designs, and thrust bearing uses the back-to-back installation form of pair-wise combination installation；In order to reduce bearing temperature rise, by bearing shell plus
It is long, increase the contact area of bearing shell, widen the width of oil ring in addition, and small circular grease chamber is provided with the inner surface of oil ring；Structure
Present center line mounting structure is changed to by original footing installation, the vibration of unit is greatly reduced, so as to extend machinery
Sealing and the service life of bearing, cost is saved for user.
The high-lift single-stage double-suction centrifugal pump pressure of the present invention is high, but delivery chamber is arranged among the pump housing, such two terminal
Tool seals the pressure that born pressure is suction inlet, reduces the pressure of mechanical seal chamber, extends making for mechanical seal
Use the life-span；And improve the anti-cavitation performance of pump.In the present invention, pump housing oil draining system, drainage, the outlet of deflation rinse-system
All gather and be connected with the external world, meet environmental requirement, the invention enables two-stage (two-speed) pump from without monitoring and controlling to current long-range
Monitoring, it is unattended to be truly realized scene, is integrated with completely with external advanced pump level.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of not departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (5)
- A kind of 1. high-lift single-stage double-suction centrifugal pump, it is characterised in that：The high-lift single-stage double-suction centrifugal pump includes pump cover, pump Seat and rotor portions dress, the pump cover are covered on the pump seat, and the rotor portions dress, the rotor portions are run through in the pump seat The both ends of dress pass the pump seat, and the rotor portions, which are loaded onto, is provided with a double-sided impeller, the both ends point of the rotor portions dress Front axle bearing portion dress and rear bearing portion dress are not installed, between front axle bearing portion dress and the pump seat, it is described after bearing portion fill Oil blocking cover is equipped between the pump seat, sealing ring before impeller, low is equipped between the impeller and the pump seat, pump cover Pressure side annular seal space sealing ring；The high-lift single-stage double-suction centrifugal pump has two suction chambers, a pumping chamber, the pumping chamber It is arranged among the pump housing；Suction, discharge opening pump seat both sides horizontal level below axis, pump both ends are low-pressure end, high-voltage section It is the middle of pump to divide in the outlet of pump.
- 2. high-lift single-stage double-suction centrifugal pump according to claim 1, it is characterised in that：Oil extraction is connected with the pump seat System and drainage.
- 3. high-lift single-stage double-suction centrifugal pump according to claim 2, it is characterised in that：The pump cover rinses system with deflating System is connected.
- 4. high-lift single-stage double-suction centrifugal pump according to claim 3, it is characterised in that：The oil draining system, blowdown system System and deflation rinse-system are all connected with same outlet.
- 5. high-lift single-stage double-suction centrifugal pump according to claim 1, it is characterised in that：The single-stage double-suction axial subdivision Line supports centered on centrifugal pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981342.XA CN107795490A (en) | 2017-10-20 | 2017-10-20 | High-lift single-stage double-suction centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981342.XA CN107795490A (en) | 2017-10-20 | 2017-10-20 | High-lift single-stage double-suction centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107795490A true CN107795490A (en) | 2018-03-13 |
Family
ID=61533378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710981342.XA Pending CN107795490A (en) | 2017-10-20 | 2017-10-20 | High-lift single-stage double-suction centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107795490A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620534A (en) * | 2018-05-21 | 2018-10-09 | 广西科技大学 | Double suction type centrifugal pump body casting method and the centrifugal pump of casting |
| CN108825507A (en) * | 2018-07-02 | 2018-11-16 | 上海水泵制造有限公司 | A kind of list double suction mixed type middle open centrifugal pump |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201851390U (en) * | 2009-12-07 | 2011-06-01 | 上海天泉泵业集团有限公司 | Novel single-stage double-suction centrifugal pump |
| CN203114637U (en) * | 2013-01-30 | 2013-08-07 | 上海通一水泵(集团)有限公司 | Single-stage double-suction horizontal split-case volute centrifugal pump |
| CN204061193U (en) * | 2014-08-18 | 2014-12-31 | 湖南天一奥星泵业有限公司 | The radial subdivision centrifugal pump of single-stage double-suction |
| CN204175600U (en) * | 2014-08-18 | 2015-02-25 | 湖南天一奥星泵业有限公司 | The high-lift single-stage double-suction centrifugal pump of multi-operating mode |
| CN204267302U (en) * | 2014-09-24 | 2015-04-15 | 沈阳启源工业泵制造有限公司 | A kind of asynchronous transmission multistage centrifugal pump |
| JP2017180241A (en) * | 2016-03-30 | 2017-10-05 | 株式会社荏原製作所 | Pump and liner ring |
-
2017
- 2017-10-20 CN CN201710981342.XA patent/CN107795490A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201851390U (en) * | 2009-12-07 | 2011-06-01 | 上海天泉泵业集团有限公司 | Novel single-stage double-suction centrifugal pump |
| CN203114637U (en) * | 2013-01-30 | 2013-08-07 | 上海通一水泵(集团)有限公司 | Single-stage double-suction horizontal split-case volute centrifugal pump |
| CN204061193U (en) * | 2014-08-18 | 2014-12-31 | 湖南天一奥星泵业有限公司 | The radial subdivision centrifugal pump of single-stage double-suction |
| CN204175600U (en) * | 2014-08-18 | 2015-02-25 | 湖南天一奥星泵业有限公司 | The high-lift single-stage double-suction centrifugal pump of multi-operating mode |
| CN204267302U (en) * | 2014-09-24 | 2015-04-15 | 沈阳启源工业泵制造有限公司 | A kind of asynchronous transmission multistage centrifugal pump |
| JP2017180241A (en) * | 2016-03-30 | 2017-10-05 | 株式会社荏原製作所 | Pump and liner ring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108620534A (en) * | 2018-05-21 | 2018-10-09 | 广西科技大学 | Double suction type centrifugal pump body casting method and the centrifugal pump of casting |
| CN108825507A (en) * | 2018-07-02 | 2018-11-16 | 上海水泵制造有限公司 | A kind of list double suction mixed type middle open centrifugal pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103225624A (en) | Double-casing symmetric type radial subdivision multiple-stage centrifugal pump | |
| CN102840142B (en) | The multi-stage shield pump that a kind of motor is put | |
| CN204175600U (en) | The high-lift single-stage double-suction centrifugal pump of multi-operating mode | |
| CN107795490A (en) | High-lift single-stage double-suction centrifugal pump | |
| CN106246559B (en) | A kind of Double pump body double-suction type canned motor pump | |
| CN203214340U (en) | Double-shell symmetric radially-split multistage centrifugal pump | |
| CN204061193U (en) | The radial subdivision centrifugal pump of single-stage double-suction | |
| CN204061194U (en) | The radial subdivision centrifugal pump of two-stage single suction | |
| CN201627724U (en) | Vertical multi-stage centrifugal pump | |
| CN103498797A (en) | Parallel type self-balancing multi-stage centrifugal pump | |
| CN204386893U (en) | Self-balanced multiple-stage centrifugal pump | |
| CN206874490U (en) | Axial subdivision three-level centrifugal pump | |
| CN101509490A (en) | Axial force self-balancing multiple stage centrifugal pump | |
| CN202833185U (en) | Double-suction multi-stage horizontal mid-split pump | |
| CN202833186U (en) | Double-suction multi-stage horizontal-type mid-split pump | |
| CN202326269U (en) | Center-opening type multi-stage pump | |
| CN102828960B (en) | Double suction multistage horizontal split pump | |
| CN201292983Y (en) | Double suction split pump | |
| CN101943178A (en) | Axial force balancing device of multi-stage pipeline pump | |
| CN213899304U (en) | Two-end supporting radial subdivision two-stage centrifugal pump | |
| CN203214404U (en) | Single-case symmetrical radially-split multistage centrifugal pump | |
| CN103225623A (en) | Symmetric radial-splitting multistage centrifugal pump with single casing body | |
| CN102828959B (en) | Double-suction multistage horizontal type horizontal split pump | |
| CN202851442U (en) | Multistage middle-opened-type high-pressure seawater desalination pump | |
| CN107701456A (en) | A kind of two-stage single suction radial direction subdivision centrifugal pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180313 |
|
| WD01 | Invention patent application deemed withdrawn after publication |