CN107701456A - A kind of two-stage single suction radial direction subdivision centrifugal pump - Google Patents
A kind of two-stage single suction radial direction subdivision centrifugal pump Download PDFInfo
- Publication number
- CN107701456A CN107701456A CN201710981669.7A CN201710981669A CN107701456A CN 107701456 A CN107701456 A CN 107701456A CN 201710981669 A CN201710981669 A CN 201710981669A CN 107701456 A CN107701456 A CN 107701456A
- Authority
- CN
- China
- Prior art keywords
- pump
- drive end
- cover
- pump cover
- pump housing
- 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
- F04D1/06—Multi-stage 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
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/041—Axial thrust balancing
-
- 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
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
-
- 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
-
- 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
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
Abstract
The invention provides a kind of two-stage single suction radial direction subdivision centrifugal pump, including drive end pump cover, interstage pumps lid, anti-drive end pump cover, the pump housing and rotor portions dress；The drive end pump cover, anti-drive end pump cover cover to be arranged in the pump housing in the pump housing both ends, the interstage pumps lid；The pump housing, drive end pump cover, interstage pumps lid, run through the rotor portions dress in anti-drive end pump cover；The rotor portions, which are loaded onto, is provided with two impellers, and the impeller is arranged in the pump housing back-to-back, and the pump housing is provided with a suction inlet and a discharge opening, delivery chamber are arranged among the pump housing；Casing ring, impeller ring and throat bushing are equipped between the impeller and the drive end pump cover, interstage pumps lid, anti-drive end pump cover, spacer sleeve.The 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 is grown.
Description
Technical field
The present invention relates to a kind of pump, more particularly to a kind of horizontal radial split casing pump.
Background technology
A kind of two-stage single suction radial direction subdivision centrifugal pump refers to a kind of horizontal radial split casing pump of jacking ejection, and
Centrifugal force is obtained by the rotation of impeller.It is existing it is horizontal in open that multistage pump is bulky, and anti-cavitation performance is relatively low.In view of
This is, it is necessary to which a kind of can be with anti-cavitation and the multistage pump of small volume.
The content of the invention
It is an object of the invention to provide a kind of horizontal radial subdivision 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 two-stage single suction radial direction subdivision centrifugal pump, including drive end pump cover, interstage pumps lid, anti-drive end pump cover, the pump housing and turn
Sub-portion fills；The drive end pump cover, anti-drive end pump cover cover is arranged on the pump housing in the pump housing both ends, the interstage pumps lid
It is interior, the pump housing, drive end pump cover, interstage pumps lid, run through the rotor portions dress, the rotor portions dress in anti-drive end pump cover
Both ends pass the drive end pump cover, anti-drive end pump cover, the rotor portions, which are loaded onto, is provided with two impellers, the impeller back of the body
Backrest is arranged in the pump housing, and the pump housing is provided with a suction inlet and a discharge opening, the both ends of the rotor portions dress
Front axle bearing portion dress and rear bearing portion dress are separately installed with, the front axle bearing portion is filled between the drive end pump cover, the rear axle
Bearing portion fills and the support of bearing is equipped between the anti-drive end pump cover, the impeller and the drive end pump cover, interstage pumps
Lid, casing ring, impeller ring, throat bushing, throat's quilt cover are equipped between anti-drive end pump cover, spacer sleeve.
In the present invention, oil draining system is connected with the pump housing, drainage, the pump are connected with the support of bearing
Body is connected with machine sealing flushing system, and the oil draining system, drainage are all connected with same outlet.A kind of two-stage single suction
Line supports centered on radial direction subdivision centrifugal pump.
The beneficial effects of the invention are as follows：The present invention can be provided with different sealing structures according to different operating modes, and sealing property is good
It is good, while double-volute structure is used, compact-sized, good appearance, hydraulic efficiency and anti-cavitation performance are higher；Inlet and outlet are each provided at
Above the pump housing so that maintenance is not required to dismantle pipeline, the pump housing, motor and drive end pump cover and anti-drive end pump when changing mechanical seal
Lid, it is easy to maintenance quick.And impeller is installation back-to-back, substantially balances axial force, reduces the pressure-bearing etc. of mechanical seal
Level, extend the service life of mechanical seal.
Brief description of the drawings
Fig. 1 is the structure chart 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, a kind of structure chart of two-stage single suction radial direction subdivision centrifugal pump, including between drive end pump cover 15, level
Pump cover 13, anti-drive end pump cover 12, the pump housing 1 and rotor portions fill 17, and the drive end pump cover 15, anti-drive end pump cover 12 are covered in institute
The both ends of the pump housing 1 are stated, the interstage pumps lid 13 is arranged in the pump housing 1, the pump housing 1, drive end pump cover 15, interstage pumps lid
13rd, run through the rotor portions in anti-drive end pump cover 12 and fill 17, the both ends that the rotor portions fill 17 pass the drive end pump
Lid 15, anti-drive end pump cover 12, the rotor portions fill and two impellers 14 are provided with 17, and the impeller 14 is arranged on institute back-to-back
State in the pump housing 1, the pump housing 1 is provided with a suction inlet and a discharge opening, the both ends that the rotor portions fill 17 are installed respectively
Have front axle bearing portion fill 18 and rear bearing portion fill 10, the front axle bearing portion is filled between 17 and the drive end pump cover 15, the rear axle
Bearing portion fills and the support of bearing 9 is equipped between 10 and the anti-drive end pump cover 12, the impeller 14 and the drive end pump cover 15,
Casing ring 7, impeller ring 3, throat bushing are equipped between interstage pumps lid 13, anti-drive end pump cover 12, spacer sleeve 16
2nd, throat bushing 4, throat's quilt cover 8.
In the present invention, oil draining system 6 is connected with the pump housing 1, drainage 5, institute are connected with the support of bearing 9
State the pump housing 1 with machine sealing flushing system 11 to be connected, the oil draining system 6, drainage 5 are all connected with same outlet.Described one
Line supports centered on kind two-stage single suction radial direction subdivision 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, alternative type of cooling (water cooling, air-cooled, natural cooling), double socket shell,
Not only make the profile of pump more attractive, and further increase the reliability of pump.The pump is the heavy duty of radial direction subdivision both ends brace type
Centrifugal pump, petroleum refining, petrochemical industry and chemical industry and conveying oil, liquefied petroleum gas without solid particle can be used in
With other media, particularly suitable for conveying HTHP and inflammable and explosive or poisonous liquid, its mounting means is in level
Heart line supports.
In the present invention, the suction inlet and discharge opening of a kind of two-stage single suction radial direction subdivision centrifugal pump are at the top of the pump housing, to pump
When being repaired, without detaching pipelines and motor, and when maintenance replacing mechanical seal and bearing, it is not required to tamper the pump housing and driving
Pump cover, anti-drive end pump cover are held, is dismounted extremely simple.The runner of pump uses scroll casing type, rather than the guide-vane of general multistage pump, because
This pump can keep higher hydraulic efficiency, and the high efficient district of pump is wide, and the efficiency of pump is up to state standards more than A lines or A lines.
In the present invention, a kind of two-stage single suction radial direction subdivision centrifugal pump is the form of two one step single sucking impellers, but delivery chamber
It is arranged among the pump housing, the pressure that the mechanical seal of such high-pressure side end is born is only the pressure of one-level, and it is close to reduce machinery
The pressure of chamber is sealed, extends the service life of mechanical seal；Installation substantially balances axial force to impeller back-to-back, and spiral case is using double
Nest shell structure, enables radial load to balance, and the bearing at pump seat both ends need to only undertake the axial force and radial load of very little, so significantly
Extend the service life of bearing.
In the present invention, pump housing oil draining system, drainage outlet all gather and are connected with the external world, and meeting environmental protection will
Ask, it is unattended from scene without monitoring and controlling to current remote monitoring, is truly realized the invention enables multistage pump, with foreign countries
Advanced pump level integrates with completely.
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 (6)
- A kind of 1. two-stage single suction radial direction subdivision centrifugal pump, it is characterised in that：The two-stage single suction radial direction subdivision centrifugal pump includes driving Moved end pump cover, interstage pumps lid, anti-drive end pump cover, the pump housing and rotor portions dress；The drive end pump cover, anti-drive end pump cover cover The pump housing both ends, the interstage pumps lid are arranged in the pump housing；It is the pump housing, drive end pump cover, interstage pumps lid, non-driven Run through the rotor portions dress in the pump cover of end, the both ends of the rotor portions dress pass the drive end pump cover, anti-drive end pump cover； The rotor portions, which are loaded onto, is provided with two impellers, and the impeller is arranged in the pump housing back-to-back；The pump housing is provided with one Individual suction inlet and a discharge opening, delivery chamber are arranged among the pump housing；The both ends of the rotor portions dress are separately installed with fore bearing Portion's dress and rear bearing portion dress, between the front axle bearing portion dress and the drive end pump cover, the rear bearing portion fills and the non-drive The support of bearing is equipped between the pump cover of moved end；The impeller and the drive end pump cover, interstage pumps lid, anti-drive end pump cover, Casing ring, impeller ring, throat bushing and throat's quilt cover are equipped between spacer.
- A kind of 2. two-stage single suction radial direction subdivision centrifugal pump according to claim 1, it is characterised in that：Connected under the pump housing There is oil draining system.
- A kind of 3. two-stage single suction radial direction subdivision centrifugal pump according to claim 2, it is characterised in that：Under the support of bearing It is connected with drainage.
- A kind of 4. two-stage single suction radial direction subdivision centrifugal pump according to claim 3, it is characterised in that：It is connected with the pump housing close Seal rinse-system.
- A kind of 5. two-stage single suction radial direction subdivision centrifugal pump according to claim 4, it is characterised in that：The oil draining system, Drainage is all connected with same outlet.
- A kind of 6. two-stage single suction radial direction subdivision centrifugal pump according to claim 1, it is characterised in that：A kind of two-stage list Line supports centered on inhaling radial direction subdivision centrifugal pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981669.7A CN107701456A (en) | 2017-10-20 | 2017-10-20 | A kind of two-stage single suction radial direction subdivision centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981669.7A CN107701456A (en) | 2017-10-20 | 2017-10-20 | A kind of two-stage single suction radial direction subdivision centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107701456A true CN107701456A (en) | 2018-02-16 |
Family
ID=61181857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710981669.7A Pending CN107701456A (en) | 2017-10-20 | 2017-10-20 | A kind of two-stage single suction radial direction subdivision centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107701456A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202326269U (en) * | 2011-11-13 | 2012-07-11 | 湖南天一奥星泵业有限公司 | Center-opening type multi-stage pump |
| CN204061194U (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 two-stage single suction |
| 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 |
| CN204061197U (en) * | 2014-08-18 | 2014-12-31 | 湖南天一奥星泵业有限公司 | Double-entry pump is opened in level |
| 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 |
| KR20160029513A (en) * | 2014-09-05 | 2016-03-15 | 협성철광 주식회사 | High pressure pump for descaling |
| CN105626543A (en) * | 2016-03-03 | 2016-06-01 | 凤杰图 | Multistage pump |
-
2017
- 2017-10-20 CN CN201710981669.7A patent/CN107701456A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202326269U (en) * | 2011-11-13 | 2012-07-11 | 湖南天一奥星泵业有限公司 | Center-opening type multi-stage pump |
| CN204061194U (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 two-stage single suction |
| 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 |
| CN204061197U (en) * | 2014-08-18 | 2014-12-31 | 湖南天一奥星泵业有限公司 | Double-entry pump is opened in level |
| 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 |
| KR20160029513A (en) * | 2014-09-05 | 2016-03-15 | 협성철광 주식회사 | High pressure pump for descaling |
| CN105626543A (en) * | 2016-03-03 | 2016-06-01 | 凤杰图 | Multistage pump |
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| 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180216 |