CN108757572A - A kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump - Google Patents
A kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump Download PDFInfo
- Publication number
- CN108757572A CN108757572A CN201810506795.1A CN201810506795A CN108757572A CN 108757572 A CN108757572 A CN 108757572A CN 201810506795 A CN201810506795 A CN 201810506795A CN 108757572 A CN108757572 A CN 108757572A
- Authority
- CN
- China
- Prior art keywords
- pump
- impeller
- pump housing
- ash water
- large flow
- 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
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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
- F04D29/00—Details, component parts, or accessories
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/24—Vanes
- F04D29/242—Geometry, shape
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- 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
- F04D29/007—Details, component parts, or accessories 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
- F04D29/04—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
- F04D29/04—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
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings 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
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4213—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps suction ports
-
- 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
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
-
- 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
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/424—Double entry casings
-
- 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
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of 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
- F04D29/66—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 discloses a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pumps, including the pump housing, pump shaft and shaft coupling, pump cover is connected with by stud on the pump housing, impeller is provided in the pump housing, impeller is connected to the middle part of the pump shaft by impeller key, it is respectively arranged with first bearing and second bearing on the pump shaft of pump housing both sides external, shaft coupling is by being keyed in one end of pump shaft, the pump housing is double-volute structure, the impeller blade that impeller is bent by six forms, spaced staggered to put, the drift angle angle of impeller blade is 9 °~12 °.Solves the problems, such as the ash water pump stability of single volute structure existing in the prior art and the bad service life for influencing pump of balance.
Description
Technical field
The invention belongs to ash water pump technical fields, are related to a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump.
Background technology
Ash water pump is to provide the pressure water of punching ash or flushing cinder and is used so that lime-ash to be flushed to a kind of liquid of grey slag bath along grey ditch
Pump.Generally use centrifugal pump of single stage type.The one kind of sluice pump as water sluice equipment, the purpose is to remove after fuel combustion from
The fine ash that the flying dust and deduster that clinker, the flue ash bucket of burner hearth dry bottom hopper exclusion are fallen separate and collect, and Ash water is arrived
Grey field.Environmental protection equipment has become an essential infrastructure in contemporary China's industrial development, for environmental protection, removes
Haze is controlled haze and is played a crucial role.Especially the industrial circles height such as steam power plant, steel, coloured, petrochemical industry, water process is consumed
Energy enterprise proposes stringenter emission reduction, environmental objective, so the improvement and development of ash water pump are to be conducive to current industry life
Production, has environmental protection great meaning.
The ash water pump of single volute structure, the pressure around impeller is non-uniform, thus forms the radial direction of a synthesis
Reaction force, unbalanced radial load increase as flow is reduced from design discharge, are especially influenced on the centrifugal pump of big flow
The size of bigger, radial load directly affects the amount of deflection of axis, to further influence sealing mechanism and bearing life, or even can not transport
Row.
Invention content
The object of the present invention is to provide a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pumps, solve existing skill
The problem of service life of the bad influence pump of ash water pump stability and balance of single volute structure present in art.
The technical solution adopted in the present invention is a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump, including
The pump housing, pump shaft and shaft coupling are connected with pump cover by stud on the pump housing, impeller are provided in the pump housing, impeller passes through impeller
Key connection is respectively arranged with first bearing and second bearing, shaft coupling on the middle part of the pump shaft, the pump shaft of pump housing both sides external
Device is by being keyed in one end of pump shaft, and the pump housing is double-volute structure, and the impeller blade that impeller is bent by six forms, spaced
It staggeredly puts, the drift angle angle of impeller blade is 9 °~12 °.
The features of the present invention also characterized in that
The position contacted with the pump housing on pump shaft is provided with axle sleeve, and the external peripheral surface of axle sleeve is provided with filler, among filler
It is provided with spacer ring, the contact position of the inner and outer wall of axle sleeve and the pump housing respectively fixes filler by filler set and gland close
It seals, the high spot on pump cover is provided with silk plug.
The contact position of pump body and impeller is connected with wear ring by fixed pin.
The outside of first bearing is connected with transparent cover by nut, and the periphery of transparent cover is fixed by bearing gland.
The outside of second bearing is connected with boring cover by nut, and the periphery of boring cover is fixed by bearing gland.
The invention has the advantages that
1. a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump of the present invention, using double-volute structure so that, pump
Volume increase accordingly, increase punching ash effect；
2. a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump of the present invention, impeller blade are symmetrically distributed along the faces Y,
Be conducive to being uniformly distributed for power when carrying out dynamic and static balance, the piece number of impeller blade is 6, the pressure distribution at working face and the back side
It can be more preferable so that the structure stress of delivery chamber is more advantageous, and mobility status is more preferable, while impeller is at staggeredly evenly distributed, Ke Yiyou
The decreasing cavitation situation of effect, ensures neat in entrance water-flow equation, and the drift angle of impeller blade is more flat among 9~12 degree
Weighing apparatus is stablized；
3. a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump of the present invention, the pump housing use centrosymmetric structure,
Be conducive to dynamic balance, reduce vibrations, enhance its service life；
4. a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump of the present invention, axle envelope use mechanical seal and filler
Sealing is combined, and sealing effect is good, effective protection main shaft, ensures that pump shaft normal work, good leakproofness keep its structure tight
It gathers, allow environment easy to pollute, improve anti-cavitation ability, ensure that different medium conveys No leakage；
5. a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump of the present invention had made pump both by improving filler position
It can be sealed with machine, and material can be loaded, improve sealing performance；
6. a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump of the present invention, the pump housing is closed with motor bearings configuration
Reason effectively can operate the radial and axial load generated by ballast pump, to ensure that operating steadily for pump, with small vibration, noise
Low and simple and reasonable, installation, replaces sealing, bearing, simple and convenient at maintenance；
7. a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump of the present invention, using the inlet diameter of 200mm, directly
Diameter is larger, and flow is larger, has apparent advantage as hydraulic(-ash) sluicing.
Description of the drawings
Fig. 1 is a kind of structure chart of balanced stability large flow single-stage double-suction centrifugal pump ash water pump of the present invention；
Fig. 2 is a kind of structure chart of balanced stability large flow single-stage the double-suction centrifugal pump ash water pump pump housing and pump cover of the present invention；
Fig. 3 is a kind of structure chart of balanced stability large flow single-stage double-suction centrifugal pump ash water pump impeller of the present invention；
Fig. 4 is a kind of structure chart of balanced stability large flow single-stage double-suction centrifugal pump ash water pump pump shaft of the present invention.
In figure, 1. pump housings, 2. pump covers, 3. pump shafts, 4. impellers, 5. impeller keys, 6. silk plugs, 7. wear rings, 8. axle sleeves, 9. fill out
Material set, 10. spacer rings, 11. fillers, 12. glands, 13. bearing glands, 14. first bearings, 15. transparent covers, 16. keys, 17.
Axis device, 18. second bearings, 19. boring covers, 20. impeller blades.
Specific implementation mode
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
A kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump of the present invention, structure is as shown in Figure 1 to 4, including
The pump housing 1, pump shaft 3 and shaft coupling 17 are connected with pump cover 2 by stud on the pump housing 1, impeller 4, impeller 4 are provided in the pump housing 1
It is connected to the middle part of pump shaft 3 by impeller key 5, first bearing 14 and second is respectively arranged on the pump shaft 3 of 1 both sides external of the pump housing
Bearing 18, shaft coupling 17 are connected to one end of pump shaft 3 by key 16, and the pump housing 1 is double-volute structure so that, the volume of pump it is corresponding
Increase, increase punching ash effect, impeller 4 by six be bent impeller blade 20 form, spaced staggered to put, impeller blade 20
Drift angle angle be 9 °~12 °.
The position contacted with the pump housing 1 on pump shaft 3 is provided with axle sleeve 8, and the external peripheral surface of axle sleeve 8 is provided with filler 11, fills out
Spacer ring 10 is provided among material 11, axle sleeve 8 and the contact position of the inner and outer wall of the pump housing 1 pass through filler set 9 and filler pressure respectively
For lid 12 by 11 fixing seal of filler, the high spot on pump cover 2 is provided with silk plug 6.Filler 11 plays the role of sealing, and spacer ring 10 is used
In keeping filler 11 to seal the rear indeformable of stress, prevent the uniform extrusion damage of unbalance stress, filler set 9 and gland 12 from using
It is overflowed in preventing filler to be pressurized, silk plug 6 also functions to the effect of sealing.
1 inside of the pump housing and the contact position of impeller 4 are connected with wear ring 7 by fixed pin, for reducing gap, carrying pressure
Power, while also serving wear-resisting, it avoids impeller 4 and the inner wall of the pump housing 1 and pump cover 2 from being in direct contact and damages, there is protection leaf
The effect of wheel 12.
The outside of first bearing 14 is connected with transparent cover 15 by nut, and the periphery of transparent cover 15 is fixed by bearing gland 13.
The outside of second bearing 15 is connected with boring cover 19 by nut, and the periphery of boring cover 19 is fixed by bearing gland 13.
A kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump of the present invention, impeller 4 is mounted in the pump housing 1, and is led to
Impeller key 5 is crossed to be fastened on pump shaft 3, kinetic energy torque is passed to pump shaft 3 by motor by shaft coupling 17, to impeller 4 into
Row rotation work.1 center of the pump housing has a fluid intake to enter so as to liquid.Before pump startup, the pump housing 1 needs that diversion is added,
After startup, impeller 4 drives high-speed rotation by pump shaft 3, and the liquid between impeller blade 20 is also with rotation, under the influence of centrifugal force,
The static energy of fluid improves, and liquid is thrown to outer rim from 4 center of impeller and obtains energy, to leave the outer rim of impeller 4 at a high speed
Into the volute pump housing 1.In the pump housing 1, liquid slows down due to being gradually expanded for runner, and part kinetic energy is changed into static pressure
Can, discharge line is finally flowed into higher pressure.When liquid flows to outer rim by 4 center of impeller, one has been centrally formed in impeller 4
Fixed vacuum, since the pressure of storage tank ullage is more than the pressure at pump intake, liquid is just continuously pressed into impeller 4.Institute
With as long as impeller 4 constantly rotates, liquid constantly will be inhaled into and be discharged, and achieve the purpose that its cycle operation.Wherein silk
Stifled 6, spacer ring 10, filler 11 etc. play the role of sealing, prevent liquid from leaking out, while preventing the entrance of outer liquid, corrosion damage
Bad parts.
A kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump of the present invention uses six impeller blades 20 on impeller 4,
Spaced staggered to put, which is most relatively reasonable scheme by optimal design.Filler 11 covers 9 Hes by filler
Gland 12 is fixed so that is combined with packing seal in mechanical seal, sealing effect is more preferable, and double suction mouth sentences body
Lower section, pumping chamber be designed as half arc be conducive to equal area than when make flow by distance it is most short, can increasing pump effect
Rate improves the grey ability of punching.
Claims (5)
1. a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump, which is characterized in that including the pump housing (1), pump shaft (3) and
Shaft coupling (17) is connected with pump cover (2) by stud on the pump housing (1), impeller (4) is provided in the pump housing (1),
The impeller (4) is connected to the middle part of the pump shaft (3), the pump shaft (3) of the pump housing (1) both sides external by impeller key (5)
On be respectively arranged with first bearing (14) and second bearing (18), the shaft coupling (17) is connected to pump shaft (3) by key (16)
One end, the pump housing (1) be double-volute structure, the impeller (4) by six be bent impeller blade (20) form, it is spaced
It staggeredly puts, the drift angle angle of the impeller blade (20) is 9 °~12 °.
2. a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump according to claim 1, which is characterized in that institute
It states the position contacted with the pump housing (1) on pump shaft (3) and is provided with axle sleeve (8), the external peripheral surface of the axle sleeve (8) is provided with filler
(11), spacer ring (10), the contact position of the axle sleeve (8) and the inner and outer wall of the pump housing (1) are provided among the filler (11)
Respectively by filler set (9) and gland (12) by filler (11) fixing seal, the high spot on the pump cover (2) is provided with
Silk plug (6).
3. a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump according to claim 1, which is characterized in that institute
It states the pump housing (1) the internal contact position with impeller (4) and wear ring (7) is connected with by fixed pin.
4. a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump according to claim 1, which is characterized in that institute
The outside for stating first bearing (14) is connected with transparent cover (15) by nut, and the periphery of the transparent cover (15) passes through bearing gland (13)
It is fixed.
5. a kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump according to claim 1, which is characterized in that institute
The outside for stating second bearing (15) is connected with boring cover (19) by nut, and the periphery of the boring cover (19) passes through bearing gland (13)
It is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810506795.1A CN108757572A (en) | 2018-05-24 | 2018-05-24 | A kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810506795.1A CN108757572A (en) | 2018-05-24 | 2018-05-24 | A kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108757572A true CN108757572A (en) | 2018-11-06 |
Family
ID=64005326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810506795.1A Pending CN108757572A (en) | 2018-05-24 | 2018-05-24 | A kind of balanced stability large flow single-stage double-suction centrifugal pump ash water pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108757572A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982296Y (en) * | 2006-12-18 | 2007-11-28 | 上海凯士比泵有限公司 | Single-stage single-suction centrifugal pump |
| CN201599245U (en) * | 2009-10-30 | 2010-10-06 | 杭州萧山美特轻工机械有限公司 | Two-flow-direction blade staggered type closed impeller |
| CN201896756U (en) * | 2010-11-23 | 2011-07-13 | 安徽省天马泵阀集团有限公司 | Dual-suction centrifugal pump |
| CN204900265U (en) * | 2015-07-07 | 2015-12-23 | 四川新达泵业有限责任公司 | Single -stage double suction split case pump |
| CN105756991A (en) * | 2016-01-07 | 2016-07-13 | 江苏大学 | Double-suction multi-flow-channel impeller and design method thereof |
-
2018
- 2018-05-24 CN CN201810506795.1A patent/CN108757572A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200982296Y (en) * | 2006-12-18 | 2007-11-28 | 上海凯士比泵有限公司 | Single-stage single-suction centrifugal pump |
| CN201599245U (en) * | 2009-10-30 | 2010-10-06 | 杭州萧山美特轻工机械有限公司 | Two-flow-direction blade staggered type closed impeller |
| CN201896756U (en) * | 2010-11-23 | 2011-07-13 | 安徽省天马泵阀集团有限公司 | Dual-suction centrifugal pump |
| CN204900265U (en) * | 2015-07-07 | 2015-12-23 | 四川新达泵业有限责任公司 | Single -stage double suction split case pump |
| CN105756991A (en) * | 2016-01-07 | 2016-07-13 | 江苏大学 | Double-suction multi-flow-channel impeller and design method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20181106 |