CN201546969U - Stainless steel horizontal-type end suction multi-stage centrifugal pump - Google Patents
Stainless steel horizontal-type end suction multi-stage centrifugal pump Download PDFInfo
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- CN201546969U CN201546969U CN2009203146809U CN200920314680U CN201546969U CN 201546969 U CN201546969 U CN 201546969U CN 2009203146809 U CN2009203146809 U CN 2009203146809U CN 200920314680 U CN200920314680 U CN 200920314680U CN 201546969 U CN201546969 U CN 201546969U
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Abstract
The utility model relates to a stainless steel horizontal-type end suction multi-stage centrifugal pump mainly comprising a motor, multi-stage impellers arranged on a main shaft, a flow guiding shell, a mechanical seal, a pressure pad, a spacer sleeve, a retaining sleeve and a locking nut, wherein each stage of the impellers and the flow guiding shell are positioned by the spacer sleeve; the mechanical seal and the last stage of the impellers are positioned by the retaining sleeve; the first stage of the impellers are positioned by the pressure pad at the shaft end and is locked by the nut; a water inlet section shell and a water outlet section shell are connected into a whole body by tensioning bolts; and a water inlet of the end part of the pump is axial, and a water outlet thereof is radial. The stainless steel horizontal-type end suction multi-stage centrifugal pump is characterized in that the impellers are fixedly connected by a front cover plate, guide blades and a rear cover plate which are independent parts. The stainless steel horizontal-type end suction multi-stage centrifugal pump has the advantages of: by adopting the impellers and the flow guiding shell combined by the independent parts and the parts made of stainless steel material, improving the manufacturing accuracy and the corrosion resistance of the impellers and the flow guiding shell, leading the performance of a product to be improved, meeting the head range for use and flow requirement and prolonging the service life.
Description
Technical field
The utility model relates to a kind of water pump, relates in particular to the horizontal end of a kind of stainless steel and inhales multistage centrifugal pump.
Background technique
Horizontal end is inhaled multistage centrifugal pump and is widely used in fields such as industry, building, water treatment as the feedwater supercharging device, is used for the conveying and the circulation of water, heating system, air-conditioning system, refrigeration system and family's water supply etc.Horizontal end inhale multistage centrifugal pump mainly by be installed in main shaft that motor coaxle is connected on multi-stage impeller, blower inlet casing, mechanical seal, spacer, motor and inlet segment, water exit end housing parts constitute, the end water intake of pump is axial, water outlet is for radially, and inlet segment housing and water exit end pump case fuse by turnbuckle.During work, impeller high speed rotating on the driven by motor main shaft, be filled in the interior liquid of impeller under action of centrifugal force, get rid of around impeller from the impeller center along interlobate arc-shaped curved surface runner, because liquid is subjected to the effect of blade, pressure and speed are increased simultaneously, be drawn towards the impeller of time one-level through the runner of blower inlet casing, like this, flow through all impellers and blower inlet casing one by one, the pressure energy of liquid increased, when liquid when water outlet transfers out, the impeller inlet place forms vacuum or low pressure because of the discharge of liquid, make follow-up liquid constantly be pressed into the import of impeller, so the impeller that is rotating just constantly sucks and drain continuously, after a plurality of impellers are superposeed step by step, will obtain certain lift and reach the effect that liquid is hoisted and promoted by lower.In a word, impeller and blower inlet casing are the core components of the above-mentioned performance of centrifugal pump of decision, but the major defect that existing horizontal end is inhaled multistage centrifugal pump is: (1) impeller and blower inlet casing are cast member, because by blade, protecgulum, the impeller that bonnet is formed and by guide vane, housing, the blower inlet casing that cap the is formed foundry goods that all is formed in one, this thin wall iron spare moulding complexity, especially blade and guide vane have complicated arc concave and convex surface flow passage structure and have the paddle hole of diverse location, and casting technique can not reach clear angle of the back chipping of structure and strict dimensional accuracy, especially can produce the swell distortion in casting process, make casting dimension, shape and angle etc. does not reach required value; Therefore cause energy loss big in using, low centrifugal lift of pump and the traffic requirement of not reaching of efficient; (2) in addition, impeller, blower inlet casing, motor shaft, spacer, inlet segment housing and water exit end housing all are cast iron materials, corrosion easily; Influence product performance and life-span; (3) motor is that iron-clad increases the weight of complete machine weight.
The model utility content
Main purpose of the present utility model is at the problems referred to above, provide the horizontal end of a kind of stainless steel to inhale multistage centrifugal pump, by the impeller of employing discrete part combination and the component of blower inlet casing and stainless steel, improve impeller and blower inlet casing and make precision and corrosion resistance, and then product performance are improved, reach and use lift and traffic requirement and life-saving.
The technological scheme that its technical problem that solves the utility model adopts is:
The horizontal end of a kind of stainless steel is inhaled multistage centrifugal pump, mainly comprise motor, be contained in multi-stage impeller, blower inlet casing between inlet segment housing and the water exit end housing and the main shaft that motor coaxle is connected, mechanical seal, pressure pad, spacer, interstage sleeve and axle head locking nut by the spacer location, are located by interstage sleeve between mechanical seal and the impeller between every grade of impeller and the blower inlet casing, first stage impeller is located by the shaft end pressure pad, and is locked by the axle head locking nut; Inlet segment housing and water exit end housing fuse by turnbuckle; The end water intake of pump is axially, and water outlet is for radially; It is characterized in that described impeller is to constitute by discrete part front shroud, blade and back shroud are fixedly connected; Described blower inlet casing is by discrete part water conservancy diversion cover plate, guide vane and diversion shell is fixedly connected constitutes.
Described front shroud, blade and back shroud are impact briquetting parts and fixedly connected by stored energy welding; Described water conservancy diversion cover plate, guide vane and diversion shell are impact briquetting parts and fixedly connected by stored energy welding.
The material of described main shaft, impeller, blower inlet casing, pressure pad, spacer and interstage sleeve is stainless steel, and the material of described electric machine casing is a die casting aluminium.
Surface at described inlet segment housing and water exit end housing is provided with electrophoretic coating.
The beneficial effects of the utility model are: by adopting the component of stamping forming discrete part combined impeller and blower inlet casing and employing stainless steel, improve impeller and blower inlet casing and made the corrosion resistance of precision and entire equipment, and then product performance are improved, reach and use lift and traffic requirement and life-saving.
Description of drawings
Fig. 1 is a general structure schematic representation of the present utility model;
Fig. 2 is the structural representation of impeller among Fig. 1;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the structural representation of blade among Fig. 3;
Fig. 5 is the structural representation of blower inlet casing among Fig. 1;
Fig. 6 is the right elevation of Fig. 5;
Fig. 7 is the structural representation of guide vane among Fig. 6.
Among the figure: 1 inlet segment housing, 2 locking nut, 3 main shafts, 4 impellers, 41 blades, 411 blade water inlets, 42 front shrouds, 421 front shroud water inlets, 43 back shrouds, 44 splines, 5 blower inlet casings, 51 guide vanes, 511 guide vane osculums, 52 water conservancy diversion cover plates, 521 spacer suit holes, 53 diversion shell, 531 diversion shell osculums, 6 interstage sleeves, 7 water exit end housings, 71 water outlets, 8 mechanical seals, 9 motors, 10 bases, 11 pump end water intakes, 12 spacers, 13 turnbuckles, 14 pressure pads.
Below in conjunction with drawings and Examples the utility model is described in detail.
Embodiment
Fig. 1～Fig. 7 illustrates the horizontal end of a kind of stainless steel and inhales multistage centrifugal pump, mainly comprises motor 9, is contained in multi-stage impeller 4, blower inlet casing 5 on the main shaft that is connected with motor coaxle 3 between inlet segment housing 1 and the water exit end housing 7, mechanical seal 8, pressure pad 14, spacer 12, interstage sleeve 6 and axle head locking nut 2; By spacer 12 location, by interstage sleeve 6 location, first stage impeller 4 is by shaft end pressure pad 14 location between mechanical seal 8 and the impeller 4 between every grade of impeller 4 and the blower inlet casing 5, and locked by axle head locking nut 2; Inlet segment housing 1 and water exit end housing 7 fuse by turnbuckle 13; Pump end water intake 11 is axially, water outlet 71 be vertical diameter to; And be provided with base 10.Be provided with three grades of impellers 4 in the present embodiment, two-stage blower inlet casing 5, it is characterized in that the utility model is on the basis of existing centrifugal pump impeller and blower inlet casing structure, resolve into discrete part with casting integrated, as Fig. 2～shown in Figure 4, above-mentioned impeller 4 is to constitute by discrete part front shroud 42, blade 41 and back shroud 43 are fixedly connected; Front shroud 42 is provided with water inlet 421, and uniform setting is equipped with the spline 44 of fixedlying connected with main shaft 3 on back shroud 43 and the blade 41 from around each water inlet 411 in center of circle camber line shape concave and convex surface flow channel for liquids to blade edge on the blade 41.Above-mentioned blower inlet casing 5 is to constitute by discrete part water conservancy diversion cover plate 52, guide vane 51 and diversion shell 53 are fixedly connected, water conservancy diversion cover plate 52 centers are provided with spacer suit hole 521, uniform setting is from around each osculum 511 in center of circle camber line shape concave and convex surface flow channel for liquids to the edge on the guide vane 51, and diversion shell 53 centers are provided with the osculum 531 that is connected with Spielpassung with the water inlet 421 of the front shroud 42 of impeller 4.
Said front-covering panel 42, blade 41 and back shroud 43 are impact briquetting parts and fixedly connected by stored energy welding; Above-mentioned water conservancy diversion cover plate 52, guide vane 51 and diversion shell 53 also are impact briquetting parts and fixedly connected by stored energy welding.Adopt punch forming process can make part obtain especially to make the camber line shape concave and convex surface structure of blade and guide vane flow channel for liquids can reach designing requirement than high manufacturing accuracy.Adopt the high stored energy welding welding of heat energy fixing between the part in addition, sound construction, the integral body that makes impeller and blower inlet casing can reach cast member engages effect, and its performance further is guaranteed.
The material of above-mentioned main shaft 3, impeller 4, blower inlet casing 5, pressure pad 14, spacer 12 and interstage sleeve 6 is stainless steel.Make product not only have the weight saving that Corrosion Protection also makes device.The material of above-mentioned electric machine casing adopts die casting aluminium, and weight saving has also improved heat dispersion.
The surface of above-mentioned inlet segment housing 1 and water exit end housing 7 is provided with electrophoretic coating.Electrophoretic coating is owing to film forming under electric field action is even, and the anti-corrosion capability of filming is strong, above-mentioned centrifugal pump corrosion resistance is significantly improved, and help environmental protection, and production security is good.
During work, the water that enters from pump end water intake 11 enters first order impeller 41 by impeller 4 front shroud water inlets 421 by blade water intake 411, get rid of around impeller from the impeller center along interlobate arc-shaped curved surface runner, the water that throws away enters in the blower inlet casing through the guide vane arc-shaped curved surface runner of blower inlet casing 5, runner through guide vane 51 is flowed out by guide vane osculum 511, be drawn towards partial impeller through diversion shell osculum 531, repeat above-mentioned circulation and export water outlet 71 discharges to from third level impeller until water, make water be subjected to the effect of impeller and blower inlet casing in this process, pressure and stepwise speed are increased, reach the lift and the traffic requirement of setting.
The above only is a preferred embodiment of the present utility model, is not shape material of the present utility model and structure are done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (4)
1. the horizontal end of stainless steel is inhaled multistage centrifugal pump, mainly comprise motor, be contained in multi-stage impeller, blower inlet casing between inlet segment housing and the water exit end housing and the main shaft that motor coaxle is connected, mechanical seal, pressure pad, spacer, interstage sleeve and axle head locking nut by the spacer location, are located by interstage sleeve between mechanical seal and the impeller between every grade of impeller and the blower inlet casing, first stage impeller is located by the shaft end pressure pad, and is locked by the axle head locking nut; Inlet segment housing and water exit end housing fuse by turnbuckle; The end water intake of pump is axially, and water outlet is for radially; It is characterized in that described impeller is to constitute by discrete part front shroud, blade and back shroud are fixedly connected; Described blower inlet casing is by discrete part water conservancy diversion cover plate, guide vane and diversion shell is fixedly connected constitutes.
2. the horizontal end of stainless steel according to claim 1 is inhaled multistage centrifugal pump, it is characterized in that described front shroud, blade and back shroud are impact briquetting parts and fixedly connected by stored energy welding; Described water conservancy diversion cover plate, guide vane and diversion shell are impact briquetting parts and fixedly connected by stored energy welding.
3. the horizontal end of stainless steel according to claim 1 and 2 is inhaled multistage centrifugal pump, it is characterized in that the material of described main shaft, impeller, blower inlet casing, pressure pad, spacer and interstage sleeve is stainless steel, and the material of described electric machine casing is a die casting aluminium.
4. the horizontal end of stainless steel according to claim 1 and 2 is inhaled multistage centrifugal pump, it is characterized in that being provided with electrophoretic coating on the surface of described inlet segment housing and water exit end housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203146809U CN201546969U (en) | 2009-11-13 | 2009-11-13 | Stainless steel horizontal-type end suction multi-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203146809U CN201546969U (en) | 2009-11-13 | 2009-11-13 | Stainless steel horizontal-type end suction multi-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201546969U true CN201546969U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203146809U Expired - Fee Related CN201546969U (en) | 2009-11-13 | 2009-11-13 | Stainless steel horizontal-type end suction multi-stage centrifugal pump |
Country Status (1)
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| CN (1) | CN201546969U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654129A (en) * | 2012-05-19 | 2012-09-05 | 浙江大元泵业有限公司 | Multi-unit shaft well pump |
| CN105317692A (en) * | 2014-05-30 | 2016-02-10 | 戴博邦浦股份有限公司 | Motor casing for pumps, particularly centrifugal pumps and peripheral centrifugal pumps |
| CN105626544A (en) * | 2016-03-22 | 2016-06-01 | 广东凌霄泵业股份有限公司 | Horizontal type multistage centrifugal pump |
| CN107687446A (en) * | 2016-08-05 | 2018-02-13 | 天津振达泵业有限公司 | A kind of diving pump blower inlet casing device |
| CN110307635A (en) * | 2019-07-05 | 2019-10-08 | 华帝股份有限公司 | Gas water heater capable of improving supercharging effect |
| CN112879307A (en) * | 2020-03-31 | 2021-06-01 | 温岭市高深泵业科技有限公司 | Single-stage external member of partial flow pump and multistage partial flow pump thereof |
| WO2023065413A1 (en) * | 2021-10-22 | 2023-04-27 | 台州韩进泵业有限公司 | Impeller device for centrifugal pump |
-
2009
- 2009-11-13 CN CN2009203146809U patent/CN201546969U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102654129A (en) * | 2012-05-19 | 2012-09-05 | 浙江大元泵业有限公司 | Multi-unit shaft well pump |
| CN105317692A (en) * | 2014-05-30 | 2016-02-10 | 戴博邦浦股份有限公司 | Motor casing for pumps, particularly centrifugal pumps and peripheral centrifugal pumps |
| CN105626544A (en) * | 2016-03-22 | 2016-06-01 | 广东凌霄泵业股份有限公司 | Horizontal type multistage centrifugal pump |
| CN107687446A (en) * | 2016-08-05 | 2018-02-13 | 天津振达泵业有限公司 | A kind of diving pump blower inlet casing device |
| CN110307635A (en) * | 2019-07-05 | 2019-10-08 | 华帝股份有限公司 | Gas water heater capable of improving supercharging effect |
| CN112879307A (en) * | 2020-03-31 | 2021-06-01 | 温岭市高深泵业科技有限公司 | Single-stage external member of partial flow pump and multistage partial flow pump thereof |
| WO2023065413A1 (en) * | 2021-10-22 | 2023-04-27 | 台州韩进泵业有限公司 | Impeller device for centrifugal pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20161113 |