CN104265643A - Single-stage double-suction double-wheel double-barrel pump - Google Patents
Single-stage double-suction double-wheel double-barrel pump Download PDFInfo
- Publication number
- CN104265643A CN104265643A CN201410546647.4A CN201410546647A CN104265643A CN 104265643 A CN104265643 A CN 104265643A CN 201410546647 A CN201410546647 A CN 201410546647A CN 104265643 A CN104265643 A CN 104265643A
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- CN
- China
- Prior art keywords
- flange
- suction
- drive end
- double
- pump
- 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.)
- Granted
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Classifications
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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
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
- F04D7/02—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type
- F04D7/06—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts of centrifugal type the fluids being hot or corrosive, e.g. liquid metals
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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
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
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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
- F04D29/04—Shafts or bearings, or assemblies thereof
-
- 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
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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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
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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
- F04D29/40—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
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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
- F04D29/40—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
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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
- F04D29/66—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a single-stage double-suction double-wheel double-barrel pump. Two barrels of the single-stage double-suction double-wheel double-barrel pump are arranged between an inlet and a volute body and the volute body and an outlet through liner plates, driving end pump covers, non-driving end pump covers and fasteners respectively; a suction flange and a spit flange are closely connected with the bilateral end surfaces of the volute body through the barrels and the fasteners respectively; a lengthened section of the suction flange and a lengthened section of the spit flange are fixedly connected with the suction flange and the spit flange through the fasteners respectively; two impellers are symmetrically arranged on the bilateral sides of a suction chamber along the axial direction face to face in a parallel mode respectively; each extrusion chamber is of a deviation gathered flow channel structure; two flow channels are deviated from the impeller extrusion chambers respectively to be gathered on a center line of the suction chamber; a supercharging shaft sleeve with a spiral groove is arranged between the driving end impeller and a locking nut and a supercharging shaft sleeve with a spiral groove is arranged between the non-driving end impeller and the locking nut. The single-stage double-suction double-wheel double-barrel pump has the advantages of being compact in structure, low in cost, reliable in performance, convenient to install and the maintain and suitable for conveying of mediums with abrasive particles, the inlet high pressure, the inlet low cavitation allowance or accompanied by thermal shock and the working condition that overflow abrasion parts need to be replaced periodically.
Description
Technical field
The present invention relates to a kind of centrifugal pumping apparatus, particularly relate to a kind of being applicable to and carry the low net positive suction head of abrasion particle, inlet high pressure, entrance or the single-stage double-suction two-wheel double shell pump with thermal shock medium.
Background technique
The conveying of current use has the Pulp pump of abrasion particle or Heisui River pump to be single suction cantilever pump, pump housing lining structure, and pump periodic replacement lining, the pump housing and lining are cast form.When entrance is in high pressure and with under the operating mode of high temperature or thermal shock, pump Security significantly declines.Owing to being cantilever pump structure, cannot realize the high powe design of pump, the on-the-spot mode adopting multiple ontology to reduce pump power, substantially increases equipment investment cost usually.
Summary of the invention
The object of this invention is to provide a kind of special conveying and have abrasive media, high-power, the low net positive suction head of entrance, resistance to inlet high pressure and thermal shock and the pump of low in input cost.
The present invention is realized by following technical proposals: a kind of single-stage double-suction two-wheel double shell pump, comprise suction flange, cylindrical shell, volute casing, drive end pump cover, liner plate, drive end impeller, anti-drive end impeller, drive end bearing parts, pump shaft, anti-drive end pump cover, non-driven-end bearing parts, spue flange, fastening piece, its middle cylinder body passes through liner plate, drive end pump cover, anti-drive end pump cover and fastening piece are arranged at entrance and volute casing, between volute casing and outlet, suck flange, spue flange by cylindrical shell and fastening piece respectively with volute casing both sides end face close proximity, drive end impeller has identical flow lift with anti-drive end impeller, and two impellers are arranged in parallel face-to-face in suction chamber bilateral symmetry vertically, delivery chamber adopts off normal to converge flow passage structure, this off normal collects runner and two impeller delivery chambers depart from, finally converge on suction chamber center line, its structure comprises suction chamber A, interior lateral deviation runner B, outer lateral deviation runner C, liquid sucks through suction chamber A, delivered to interior lateral deviation runner B and outer lateral deviation runner C by two impellers, liquid flows through convergent point D1 and the extremely outlet of convergent point D2 twice convergence flow.
The present invention also comprise suck flange lengthening section, spue flange lengthening section, described suction flange lengthening section by fastening piece with suck flange and be connected, described in the flange lengthening section that spues be connected by fastening piece and the flange that spues.
Drive end impeller of the present invention, arrange respectively have spiral fluted supercharging axle sleeve between anti-drive end impeller and locking nut, this supercharging axle sleeve is connected by key and pump shaft.
Drive end pump cover of the present invention, anti-drive end pump cover, cylindrical shell are independent forging molding.
Cylindrical shell of the present invention, drive end pump cover, anti-drive end pump cover are pressure-containing member, adopt the manufacture of low material pressure-resistant material; Described suction flange, suction flange lengthening section, volute casing, liner plate, drive end impeller, anti-drive end impeller, pump shaft, supercharging axle sleeve, the flange that spues, the flange lengthening section that spues are overcurrent abrasion part, adopt the manufacture of high material high-abrasive material.
The present invention arranges drive end bearing parts and non-driven-end bearing parts form two end supports structure, and the bearing capacity of pump improves greatly, and the input cost of pump significantly reduces; The present invention adopts drive end impeller and the anti-drive end impeller of two same traffic lifts, be arranged in parallel that (namely this pump is double suction form face-to-face, the flow of pump is 2 times by single impeller flow, lift of pump equals the lift of single impeller) can axial force be eliminated, two single suction wheels are divided into by double suction wheel to arrange, suction chamber and delivery chamber is made jointly to occupy same radial space, suction chamber Central Symmetry, delivery chamber is that off normal converges runner form, this layout has saved the radial dimension of pump greatly, and the cavitation resistive property of pump is significantly improved; The supercharging axle sleeve of the present invention's design, its axle sleeve has spiral chute, makes pump seal chamber keep malleation, still can protect sealing that media particle is not moved to sealed sides especially outside when flushing pressure deficiency when pump rotates; Drive end pump cover of the present invention, anti-drive end pump cover, cylindrical shell are independent forging molding, reliable performance, and bearing capacity is strong, can meet the working environment under high pressure or thermal shock; Pump constituent elements is divided into pressure-containing member and overcurrent abrasion part by the present invention, pressure-containing member adopts the manufacture of low material pressure-resistant material, overcurrent abrasion part adopts the manufacture of high material high-abrasive material, overcurrent abrasion part protects non-overcurrent pressure-containing member, non-overcurrent pressure-containing member is not denuded, not only this material configuration mode meets pump requirement of strength but also meet the wear-resisting requirement of pump, significantly save again the input cost of pump simultaneously; The present invention arranges and sucks flange lengthening section and the flange lengthening section that spues, and can dismantle and suck flange and the flange that spues, thus whole rotor and inner core are together dismantled by anti-drive end when device suction line and the pipeline that spues are motionless.
Compared with prior art, the present invention has the features such as compact structure, cheap, reliable performance, installation and maintenance are convenient, is applicable to the operating mode of carrying the low net positive suction head of abrasion particle, inlet high pressure, entrance or need regularly replace with medium and the overcurrent abrasion part of thermal shock.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is that off normal of the present invention is confluxed structural representation.
Embodiment
Hereinafter, with reference to the accompanying drawings of embodiments of the invention.
As shown in Figure 1, the single-stage double-suction two-wheel double shell pump of the embodiment of the present invention, is made up of suction flange lengthening section 1, suction flange 2, cylindrical shell 3, volute casing 4, drive end pump cover 5, liner plate 6, drive end impeller 7, anti-drive end impeller 8, drive end bearing parts 9, pump shaft 10, anti-drive end pump cover 12, non-driven-end bearing parts 13, the flange 15 that spues, the component such as flange lengthening section 16, fastening piece that spue.Cylindrical shell 3, drive end pump cover 5, anti-drive end pump cover 12 are pressure-containing member, adopt the manufacture of low material pressure-resistant material; Suck flange 2, suction flange lengthening section 1, volute casing 4, liner plate 6, drive end impeller 7, anti-drive end impeller 8, pump shaft 10, supercharging axle sleeve 11, the flange 15 that spues, the flange lengthening section 16 that spues for overcurrent abrasion part, adopt the manufacture of high material high-abrasive material.Drive end pump cover 5, anti-drive end pump cover 12, cylindrical shell 3 are independent forging molding, reliable performance, and bearing capacity is strong, can meet the working environment under high pressure or thermal shock.Drive end impeller 7 has identical flow lift with anti-drive end impeller 8, and two impellers are arranged in parallel face-to-face in suction chamber bilateral symmetry vertically.Delivery chamber adopts off normal to converge flow passage structure 14, and this off normal collects runner and two impeller delivery chambers depart from, and finally converges on suction chamber center line.The supercharging axle sleeve 11 of this pump design, its axle sleeve has spiral chute, makes pump seal chamber keep malleation, still can protect sealing that media particle is not moved to sealed sides especially outside when flushing pressure deficiency when pump rotates.
As shown in Figure 2, off normal converges flow passage structure and comprises suction chamber A, interior lateral deviation runner B, outer lateral deviation runner C, liquid sucks through suction chamber A, is delivered to interior lateral deviation runner B and outer lateral deviation runner C by two impellers, and liquid flows through convergent point D1 and the extremely outlet of convergent point D2 twice convergence flow.
Each overcurrent abrasion part is checked, abrasion i.e. replaceable corresponding part or integral replacing rotor and inner core to a certain extent when overhauling after pump operation a period of time.Cylindrical shell 3 need not be dismantled when more exchanging rotor and core member.Be provided with wound gasket owing to sucking flange 2 and spuing between flange 15 and volute casing 4, need dismounting intake flange 2 before dismounting core member, suck flange lengthening section 1, spue flange 15 and the flange lengthening section 16 that spues.Arranging the object sucking flange lengthening section 1 and the flange lengthening section 16 that spues is can dismantle when device suction line and the pipeline that spues are motionless to suck flange 2 and the flange 15 that spues, thus whole rotor and inner core are together dismantled by anti-drive end.
Claims (5)
1. a single-stage double-suction two-wheel double shell pump, comprise and suck flange (2), cylindrical shell (3), volute casing (4), drive end pump cover (5), liner plate (6), drive end impeller (7), anti-drive end impeller (8), drive end bearing parts (9), pump shaft (10), anti-drive end pump cover (12), non-driven-end bearing parts (13), spue flange (15), fastening piece, wherein, cylindrical shell (3) is by liner plate (6), drive end pump cover (5), anti-drive end pump cover (12) and fastening piece are arranged at entrance and volute casing, between volute casing and outlet, it is characterized in that, suck flange (2), spue flange (15) by cylindrical shell (3) and fastening piece respectively with volute casing both sides end face close proximity, drive end impeller (7) has identical flow lift with anti-drive end impeller (8), and two impellers are arranged in parallel face-to-face in suction chamber bilateral symmetry vertically, delivery chamber adopts off normal to converge flow passage structure (14), this off normal collects runner and two impeller delivery chambers depart from, finally converge on suction chamber center line, its structure comprises suction chamber A, interior lateral deviation runner B, outer lateral deviation runner C, liquid sucks through suction chamber A, delivered to interior lateral deviation runner B and outer lateral deviation runner C by two impellers, liquid flows through convergent point D1 and the extremely outlet of convergent point D2 twice convergence flow.
2. single-stage double-suction two-wheel double shell pump according to claim 1, it is characterized in that, also comprise suction flange lengthening section (1), spue flange lengthening section (16), described suction flange lengthening section (1) by fastening piece with suck flange (2) and be connected, described in the flange lengthening section (16) that spues be connected by fastening piece and the flange (15) that spues.
3. single-stage double-suction two-wheel double shell pump according to claim 1, it is characterized in that, described drive end impeller (7), arrange respectively have spiral fluted supercharging axle sleeve (11) between anti-drive end impeller (8) and locking nut, this supercharging axle sleeve (11) is connected by key and pump shaft (10).
4. single-stage double-suction two-wheel double shell pump according to claim 1, is characterized in that, described drive end pump cover (5), anti-drive end pump cover (12), cylindrical shell (3) are independent forging molding.
5. the single-stage double-suction two-wheel double shell pump according to above-mentioned any one claim, is characterized in that, described cylindrical shell (3), drive end pump cover (5), anti-drive end pump cover (12) are pressure-containing member, adopt the manufacture of low material pressure-resistant material; Described suction flange (2), suction flange lengthening section (1), volute casing (4), liner plate (6), drive end impeller (7), anti-drive end impeller (8), pump shaft (10), supercharging axle sleeve (11), the flange that spues (15), the flange lengthening section (16) that spues, for overcurrent abrasion part, adopt the manufacture of high material high-abrasive material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410546647.4A CN104265643B (en) | 2014-10-16 | 2014-10-16 | Single-stage double-suction two-wheel double shell pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410546647.4A CN104265643B (en) | 2014-10-16 | 2014-10-16 | Single-stage double-suction two-wheel double shell pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104265643A true CN104265643A (en) | 2015-01-07 |
| CN104265643B CN104265643B (en) | 2017-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410546647.4A Active CN104265643B (en) | 2014-10-16 | 2014-10-16 | Single-stage double-suction two-wheel double shell pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104265643B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046253A (en) * | 2021-09-09 | 2022-02-15 | 襄阳五二五泵业有限公司 | Vertical slurry pump adopting semi-open type double-suction impeller |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57181999A (en) * | 1981-05-01 | 1982-11-09 | Mitsubishi Heavy Ind Ltd | Turbo machine |
| CN202203122U (en) * | 2011-08-04 | 2012-04-25 | 神华集团有限责任公司 | Centrifugal pump |
| CN103511287A (en) * | 2013-10-23 | 2014-01-15 | 大连深蓝泵业有限公司 | Horizontal-type radial subdivision volute-type dual-cylinder pump |
| JP5607783B1 (en) * | 2013-04-30 | 2014-10-15 | 株式会社酉島製作所 | Fluid machinery |
| CN204113665U (en) * | 2014-10-16 | 2015-01-21 | 大连深蓝泵业有限公司 | Single-stage double-suction two-wheel double shell pump |
-
2014
- 2014-10-16 CN CN201410546647.4A patent/CN104265643B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57181999A (en) * | 1981-05-01 | 1982-11-09 | Mitsubishi Heavy Ind Ltd | Turbo machine |
| CN202203122U (en) * | 2011-08-04 | 2012-04-25 | 神华集团有限责任公司 | Centrifugal pump |
| JP5607783B1 (en) * | 2013-04-30 | 2014-10-15 | 株式会社酉島製作所 | Fluid machinery |
| CN103511287A (en) * | 2013-10-23 | 2014-01-15 | 大连深蓝泵业有限公司 | Horizontal-type radial subdivision volute-type dual-cylinder pump |
| CN204113665U (en) * | 2014-10-16 | 2015-01-21 | 大连深蓝泵业有限公司 | Single-stage double-suction two-wheel double shell pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046253A (en) * | 2021-09-09 | 2022-02-15 | 襄阳五二五泵业有限公司 | Vertical slurry pump adopting semi-open type double-suction impeller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104265643B (en) | 2017-03-01 |
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