CN110043471A - Vertical sectional type long-shaft pump - Google Patents
Vertical sectional type long-shaft pump Download PDFInfo
- Publication number
- CN110043471A CN110043471A CN201910434329.1A CN201910434329A CN110043471A CN 110043471 A CN110043471 A CN 110043471A CN 201910434329 A CN201910434329 A CN 201910434329A CN 110043471 A CN110043471 A CN 110043471A
- Authority
- CN
- China
- Prior art keywords
- pump
- water
- shaft
- impeller
- sectional type
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 34
- 230000008878 coupling Effects 0.000 claims description 11
- 238000010168 coupling process Methods 0.000 claims description 11
- 238000005859 coupling reaction Methods 0.000 claims description 11
- 230000002708 enhancing effect Effects 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 230000004323 axial length Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 210000000952 spleen Anatomy 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
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
- F04D1/08—Multi-stage pumps the stages being situated concentrically
-
- 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
- F04D29/046—Bearings
-
- 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
- F04D29/18—Rotors
- F04D29/185—Rotors consisting of a plurality of wheels
-
- 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
-
- 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
- F04D29/4273—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps suction eyes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Vertical sectional type long-shaft pump, including impeller at different levels, impeller outlet guide vane.The water inlet of water pump uses horn mouth pattern, axial to intake, hydraulic fitting；Medium water conservancy diversion is conveyed to be axial after afterbody impeller, then through spatial guide blade pattern.It is provided with guide bearing seat on the water-inlet horn mouth, pump shaft lower end is positioned by the guide bearing in the bearing block.Existing sectional multi-stage centrifugal pump radial direction water intake mode is become axial water intake mode by the present invention, existing sectional multi-stage centrifugal pump radial direction water-out manners are become into axial water-out manners, both the existing sectional multi-stage centrifugal pump feature high compared to existing long-shaft pump single-stage lift had been can use, under same flow, lift and speed conditions, reduce impeller progression, the mounting structure pattern of vertical long shaft pump, the behaviour in service suitable for existing vertical long shaft pump can be used again.
Description
Technical field
The invention belongs to water pump field, in particular to a kind of vertical sectional type long-shaft pump.
Background technique
Existing vertical long shaft pump is commonly used to conveying clear water, rainwater, the iron oxide severe edema due to hypofunction of the spleen, sewage, has corrosive industry
Waste water, seawater and other be free of particle and the liquid of fiber etc., be widely used in Running-water Company, sewage treatment plant, power plant, steel
The industrial and mining enterprises such as ironworks, mine and municipal plumbing, the engineerings such as control flood and drain flooded fields.The water-inlet horn mouth of this pump from below is axial
Inspiration water is held, axially flows between inside and outside cylinder after impellers at different levels and subsequent space guide vane body, is flowed out by outlet elbow.
This pump is a kind of typical wet pit mounting structure, is installed compared to dry type, pump room structure is simple, and capital construction is at low cost, directly
Pump is installed on absorbing well, absorption well and protrudes into first stage impeller in water.In many cases, vertical long shaft pump dehvery lift is higher,
It is general to use multistage series arrangement.The disadvantages are as follows: mouthpiece's area of spatial guide blade structure is larger, the high-efficiency point of water pump is than turning
Speed is higher, i.e., under certain flow and revolving speed, the single-stage lift of high-efficiency point is not high, and the axial length of water pump is longer.
Existing sectional multi-stage centrifugal pump, water pump is by entering impeller and subsequent radial guiding after radial spiral case of intaking
Leaf, and by entering next stage impeller after radial return guide vane, by after afterbody impeller and radial vane without return guide vane,
And it is radially flowed out by outlet volute.Mouthpiece's area of space guide vane, radial vane is smaller, the high-efficiency point specific speed of water pump
It is relatively low, that is, existing vertical long shaft pump is compared, under same flow and revolving speed, the single-stage of sectional type multi-stage pump high-efficiency point is raised
Journey wants much higher.Thus under identical flow lift and revolving speed, sectional multi-stage centrifugal pump can be than existing vertical long
Pump uses less impeller progression.The disadvantages are as follows: sectional multi-stage centrifugal pump is dry type mounting structure, radial to intake, diameter
To water outlet, it is impossible to be used in wet pit mounting structure.
Summary of the invention
The present invention is intended to provide a kind of vertical sectional type long-shaft pump of shortcoming for overcoming above-mentioned prior art, it can either
Suitable for the wet pit mounting structure of existing vertical long shaft pump, and there can be less impeller progression.
The technical solution adopted by the present invention to solve the technical problems is:
Vertical sectional type long-shaft pump, including water-inlet horn mouth, impeller at different levels, radial vane, radial return guide vane, sectional type middle section,
Space guide vane body, outer barrel, inner cylinder, pump shaft, base plate, motor cabinet, shaft coupling, axle envelope component, outlet elbow and connection are each
The guide bearing and its bracket of box coupling, enhancing rotor rigidity between root pump shaft.Final stage is using vertical long pump configuration
Impeller outlet uses space guide vane body, remaining existing sectional type structure, that is, impeller outlet of use at different levels uses radial vane pressure
Water chamber, and the medium in pumping chamber is oriented to by next stage impeller by radial return guide vane, wherein the water inlet of first stage impeller is vertical
The water-inlet horn mouth axial end inspiration water of long axis pump configuration.
Further, it is provided with guide bearing seat on import horn mouth, by the guide bearing in the guide bearing seat under pump shaft
End positioning.
Beneficial effects of the present invention: due to by other than final stage it is at different levels use existing sectional multi-stage centrifugal pump structure, can
With the feature high compared to existing vertical long shaft pump single-stage lift using existing sectional multi-stage centrifugal pump, in same flow, raise
Under journey and speed conditions, impeller progression can be reduced compared to existing vertical long shaft pump, can simplify water pump structure in this way, reduces water
Cost is pumped, while axial length can be shortened, promotes rotor rigidity, is also adapted to more shallow than existing vertical long shaft pump wet
Hole.Since the radial water intake mode of the first order impeller of existing sectional multi-stage centrifugal pump being become and existing vertical long shaft pump phase
Same horn mouth axial end inhales water intake mode, and final stage uses vertical long pump configuration, that is, after passing through impeller, then passes through
Thereafter space guide vane body is axially discharged, it is possible to the wet pit mounting condition suitable for existing vertical long shaft pump.Due to
It is provided with guide bearing seat on import horn mouth, pump shaft lower end can be positioned by the guide bearing in the bearing block, prevent pump shaft
Lower end is swung, and further increases rotor rigidity.
Detailed description of the invention
Fig. 1 is existing vertical long pump configuration.
Fig. 2 is existing sectional multi-stage centrifugal pump structure.
Fig. 3 is vertical sectional type long axis pump configuration of the invention.
In figure: 1. water-inlet horn mouths, 2. impellers, 3. space guide vane bodies, 4. outer barreies, 5. inner cylinders, 6. pump shafts, 7. guide shafts
Bracket is held, 8. guide bearings, 9. box couplings, 10. base plates, 11. motor cabinets, 12. shaft couplings, 13. axle envelope components, 14. go out
Mouth bend pipe, 15. water inlet spiral cases, 16. radial vanes, 17. radial return guide vanes, 18. sectional type middle sections, 19. water outlet spiral cases, 20. connect
Extension bar, 21. guide bearing seats.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and specific embodiments.
It is as shown in Figure 3: vertical sectional type long-shaft pump, including water-inlet horn mouth (1), impeller (2), radial vane (16), diameter
To return guide vane (17), sectional type middle section (18), space guide vane body (3), outer barrel (4), inner cylinder (5), pump shaft (6), base plate
(10), motor cabinet (11), shaft coupling (12), axle envelope component (13), outlet elbow (14) and connection each pump shaft between sleeve
Shaft coupling (9), the guide bearing (8) for enhancing rotor rigidity and its bracket (7), connection water-inlet horn mouth and each sectional type middle section and sky
Between the connecting rod (20) of diffuser constitute, wherein final stage uses existing vertical long pump configuration, i.e. impeller outlet is using empty
Between diffuser (3), remaining is at different levels to use existing sectional type structure, i.e. impeller outlet uses radial vane (16), and passes through radial direction
Medium is oriented to next stage impeller by return guide vane (17), and wherein the water inlet form of first stage impeller is by existing sectional multi-stage centrifugal pump
Water inlet spiral case (15) radially intakes and is changed to water-inlet horn mouth (1) axial end inspiration water of vertical long pump configuration.
Guide bearing seat (21) are provided on water-inlet horn mouth, by the guide bearing (8) in the guide bearing seat (21) to pump shaft
(6) lower end positions.
The medium of water pump conveying subsequently enters impellers at different levels (2) and subsequent radial vane (16) from water-inlet horn mouth (1),
And next stage impeller is imported by radial return guide vane (17), after afterbody impeller, enter by space guide vane body (3) outer
Between cylinder (4) and inner cylinder (5), and flowed out finally by outlet elbow (14).There is sectional type middle section in the outside of radial vane
(18) as the pump shell of this section, pass through between water-inlet horn mouth (1), each sectional type middle section (18) and space guide vane body (3)
Connecting rod (20) connection.Protective of the inner cylinder (5) as pump shaft (6), can be set can also be not provided with as needed.Inner cylinder
Body (5), the length of outer barrel (4) and pump shaft (6) and joint number are depending on installation length.Flanged joint is used between each cylinder,
It as needed can also be using other connecting modes such as thread connections in the case where intensity and standard allow.In water-inlet horn mouth
(1) lower part of being provided with guide bearing seat (21) in, a bottom pump shaft (6) is fixed by the guide bearing (8) of guide bearing seat (21)
Position.Box coupling (9) connection can be used between each section pump shaft (6).Pump shaft (6) is intermediate intermediate according to the setting of installation length situation
Guide bearing (8), guide bearing (8) are fixed on outer barrel (4) by guide bearing bracket (7).It is pumped when using the protection of inner cylinder (5) body
When axis (6), inner cylinder (5) is connected with guide bearing bracket (7).The outlet elbow (14) of water pump is mountable to base according to field condition
More than plinth plate (10), also it is mountable to base plate (10) below.Motor cabinet (11) is for connecting water pump and its driving motor, motor
It is connected with the main shaft of water pump by shaft coupling (12), is sealed between the rotor and stator of water pump by axle envelope component (13).
The company of being not limited by between water-inlet horn mouth (1) of the invention, each sectional type middle section (18) and space guide vane body (3)
A kind of connection type of extension bar (20) connection, can also be connected by other connection types such as flange, respectively be saved between pump shaft (6)
It is not limited to that a kind of box coupling (9) connection type can also be used, other connection types can also be used.
Claims (2)
1. in vertical sectional type long-shaft pump, including water-inlet horn mouth, impeller at different levels, radial vane, radial return guide vane, sectional type
Section, space guide vane body, outer barrel, inner cylinder, pump shaft, base plate, motor cabinet, shaft coupling, axle envelope component, outlet elbow and connection
The guide bearing and its bracket of box coupling, enhancing rotor rigidity between each pump shaft, it is characterised in that: final stage is using vertical
Long axis pump configuration, that is, impeller outlet uses space guide vane body, remaining existing sectional type structure, that is, impeller outlet of use at different levels is adopted
The medium in pumping chamber is oriented to next stage impeller with radial vane pumping chamber, and by radial return guide vane, wherein first stage impeller
Water inlet be vertical long pump configuration water-inlet horn mouth axial end inspiration water.
2. vertical sectional type long-shaft pump according to claim 1, it is characterised in that: be provided with guide bearing on import horn mouth
Seat positions pump shaft lower end by the guide bearing in the guide bearing seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910434329.1A CN110043471A (en) | 2019-05-23 | 2019-05-23 | Vertical sectional type long-shaft pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910434329.1A CN110043471A (en) | 2019-05-23 | 2019-05-23 | Vertical sectional type long-shaft pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110043471A true CN110043471A (en) | 2019-07-23 |
Family
ID=67283294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910434329.1A Pending CN110043471A (en) | 2019-05-23 | 2019-05-23 | Vertical sectional type long-shaft pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110043471A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555165A (en) * | 2020-11-30 | 2021-03-26 | 江苏江大流体技术有限公司 | A high-efficient type long-axis pump for chemical material transportation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2716555Y (en) * | 2004-01-19 | 2005-08-10 | 曹志刚 | Broad spectrum energy saving vertical-type multistage pump |
| CN103075369A (en) * | 2013-01-23 | 2013-05-01 | 广州市昕恒泵业制造有限公司 | Combined vertical-type submerged long-shaft pump |
| CN206943014U (en) * | 2017-04-28 | 2018-01-30 | 上海凯泉泵业（集团）有限公司 | A kind of barrel pocket type extraction pump structure |
| CN210087613U (en) * | 2019-05-23 | 2020-02-18 | 湖南机电职业技术学院 | Vertical sectional type long shaft pump |
-
2019
- 2019-05-23 CN CN201910434329.1A patent/CN110043471A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2716555Y (en) * | 2004-01-19 | 2005-08-10 | 曹志刚 | Broad spectrum energy saving vertical-type multistage pump |
| CN103075369A (en) * | 2013-01-23 | 2013-05-01 | 广州市昕恒泵业制造有限公司 | Combined vertical-type submerged long-shaft pump |
| CN206943014U (en) * | 2017-04-28 | 2018-01-30 | 上海凯泉泵业（集团）有限公司 | A kind of barrel pocket type extraction pump structure |
| CN210087613U (en) * | 2019-05-23 | 2020-02-18 | 湖南机电职业技术学院 | Vertical sectional type long shaft pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112555165A (en) * | 2020-11-30 | 2021-03-26 | 江苏江大流体技术有限公司 | A high-efficient type long-axis pump for chemical material transportation |
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