CN2600618Y - Low ratio speed punching welding moulding horizontal double-stage centrifugal pump - Google Patents
Low ratio speed punching welding moulding horizontal double-stage centrifugal pump Download PDFInfo
- Publication number
- CN2600618Y CN2600618Y CN 02248171 CN02248171U CN2600618Y CN 2600618 Y CN2600618 Y CN 2600618Y CN 02248171 CN02248171 CN 02248171 CN 02248171 U CN02248171 U CN 02248171U CN 2600618 Y CN2600618 Y CN 2600618Y
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- impeller
- stator
- pump
- bonnet
- level impeller
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Abstract
The utility model relates to a low specific speed horizontal two-stage centrifugal pump fabricated by stamping and welding, which includes: An electric machine (1), a back cap (3), an I level impeller (10), an II level impeller (5), a pump body (11),a locating ring (6), a contraprop back cap (7), a contraprop (8) and a contraprop front cap (16). The I level impeller (10) and the II level impeller (5) are positioned inside the cavity made by the back cap (3) and the pump body (11) and connected with the output shaft of the electric machine (1). The middle part of the pump body includes a circular cylinder sect (11A) and a fully spiral volute chamber sect (11B). The contraprop (8) is arranged inside the cavity provided by the contraprop back cap (7). The contraprop front cap (16) is fixed to the contraprop (8) and the contraprop back cap (7) is supported on the locating ring (6), which is fixed to the back cap (3). The utility model adopts the technology of stamping and welding in manufacturing. The middle of the pump body uses horizontal arrangement including the circular cylinder sect and the fully spiral volute chamber sect, which makes the structure light and the radial force small. Accordingly, the intensity, rigidity and the technical characteristics of the pump body can be multiplied and the running and production efficiency of the pump can be improved significantly, which further improves the range of delivery.
Description
1, technical field:
The utility model is the horizontal double-impeller pump of a kind of low-specific-speed, and the horizontal double-impeller pump of particularly a kind of low-specific-speed it by punch and weld belongs to the renovation technique of double-impeller pump.
2, background technique:
Present multistage centrifugal pump all is to adopt to be provided with diversion component between I level impeller and II level impeller, by the impeller diversion component liquid of carrying is carried out the conversion of energy continuously, to improve the structure of its lift, as Chinese patent application number is in 88107072 (the authorization notification number is CN1011436B) disclosed a kind of " multistage pump ", Chinese patent application number is among 952 32217.X (notification number is CN2252256Y) disclosed a kind of " multistage segmental type pump ", but the shortcoming of its existence is a pump housing heaviness, radial force is big and technical performance is poor, the operational efficiency and the manufacturing efficiency of pump are low, the structure of each parts is complicated, processing and installation be trouble, and its effect that improves lift is desirable not enough, fails to satisfy user's use needs.In addition, parts such as the diversion component of existing multistage centrifugal pump, impeller are foundry goods normally, the shortcoming of its existence is that foundry goods needs consumptive material many, the power consumption height, labor intensity is big, and manufacture process has pollution to environment, and to low-specific-speed some parts in small flow, high-lift multi-stage pump, impeller and the diversion component long narrow as runner are then limit because of technology to be difficult to casting.
3, summary of the invention:
The purpose of this utility model be to consider the problems referred to above and provide a kind of light and handy, radial force is little and technological performance, can increase substantially the operational efficiency and the manufacturing efficiency of pump and further improve the horizontal double-impeller pump of low-specific-speed it by punch and weld of its lift.Each parts of the utility model simple in structure, processing and installing easily, consumptive material is few, and it is low to consume energy, and manufacture process can reduce environmental pollution, alleviates working strength.
Structural representation of the present utility model as shown in Figure 1, include motor (1), bonnet (3), I level impeller (10), II level impeller (5), the pump housing (11), I level impeller (10), II level impeller (5) places in the cavity that bonnet (3) and the pump housing (11) surrounded, and be connected with the output shaft of motor (1), the middle part of its middle pump body (11) includes shell portion (11A) and full spirality volute chamber section (11B), form one along liquid flow path direction radially outward between full spirality volute chamber section (11B) and the II level impeller (5), increase gradually, the volute chamber that section is linear in the shape of a spiral, wherein be provided with the stator bonnet (7) that the shell portion (11A) and the full spirality volute chamber section (11B) at the pump housing (11) middle part can be divided into two relatively independent cavitys between I level impeller (10) and the II level impeller (5), in the individual cavity at I level impeller (10) place, be provided with stator (8) and stator protecgulum (16), wherein stator (8) is contained in the set cavity of stator bonnet (7), stator protecgulum (16) is fixed on the stator (8), stator bonnet (7) is bearing on the positioning ring (6), and positioning ring (6) is fixed on the bonnet (3).
The above-mentioned pump housing (11) is fixed with inlet tube (19).
Between above-mentioned I level impeller (10) and the inlet tube, between II level impeller (5) and the stator bonnet (7) by sealing opening ring (18) sealing.
Above-mentioned I level impeller (10), II level impeller (5) include preceding impeller plate, back impeller plate and between the big cornerite linear leaf helical type blade of clamping.
Above-mentioned stator bonnet (7) is provided with seal ring (9) with the surface of contact of positioning ring (6).
The above-mentioned pump housing (11) directly is fixed on the motor (1) by the flange which is provided with.
Above-mentioned positioning ring (6) is made the cylindrical body of through hole (6A) for the middle part, and the position of through hole (6A) is corresponding with the spirality volute chamber of spirality volute chamber section (11B).
Above-mentioned I level impeller (10), II level impeller (5) can be sleeved on the output shaft of motor (1) by axle sleeve (12), and the shaft part between the front end of axle sleeve (12) and the bonnet (3) is provided with mechanical seal (2), and the rear end of axle sleeve (12) tightens up by nut (13) and pad (14).
Shaft part between above-mentioned bonnet (3) and the motor (1) is provided with water retaining ring (17).
Above-mentioned bonnet (3), I level impeller (10), II level impeller (5), the pump housing (11), stator bonnet (7), stator (8), stator protecgulum (16) all with sheet metal by impact briquetting, and by being welded to connect.
The utility model is compared with existing double-impeller pump, has following characteristics:
1, pump housing middle part employing of the present utility model includes the structure of shell portion and full spirality volute chamber section, can increase the intensity and toughness and the technical performance of the pump housing, can increase substantially the operational efficiency and the manufacturing efficiency of pump, further improves its lift;
2, impeller eye place's employing sealing opening ring of the present utility model sealing, and the sealing surface gap is less than 0.5 millimeter, good sealing effect; In addition, adopt the seal ring sealing between first order impeller and the second level impeller, reduce to leak, improve the volumetric efficiency of pump.
3, horizontal layout overall construction design of the present utility model is ingenious, in the same pump housing, adopted two kinds of structural types of full spirality volute chamber and stator that the liquid of carrying is carried out the Continuous Energy conversion, at first liquid enters first order impeller through pump inlet, pass through diversion component again, the kinetic energy of liquid is converted into the pressure energy, import second level impeller, the full spirality volute chamber of the process pump housing converts kinetic energy to pressure once more and can export outside the pump housing with higher pressure, therefore, can further improve its lift;
4, first order impeller of the present utility model and second level impeller are actual is by the impeller serial of two different-diameters of different technologies feature, is equivalent to the series connection of two different size pumps, so lift is higher, and makes pump structure compacter.
5, the through hole made of the utility model positioning ring middle part is corresponding with the spirality volute chamber of pump housing spirality volute chamber section, can reduce the liquid that comes out from the impeller unbalanced force to the positioning ring generation, prevents axial deformation and displacement.
6, the impeller in the utility model, diversion component etc. have adopted viscous flow design and structural type cleverly, have solved the difficult problem that former small flow, high-lift low-specific-speed double-impeller pump adopt foundry goods to realize;
7, all parts of the present utility model all adopt it by punch and weld, technology is single, and is light and handy owing to structure with the double-impeller pump of 0.5～5 millimeter metallic plate punching spare welding fabrication, can adopt horizontal layout, with compare by the casting pump of foundry goods manufacturing, weight have only its 1/4, efficient improves 5～7%, cost be its 2/3, energy-saving material-saving, the manufacturing efficiency height is avoided environmental pollution, reduces labor intensity; Sheet metal can be selected stainless steel materials for use, and is corrosion-resistant, the life-span is long, can carry the high viscosity slurry, can use in-40 ℃～180 ℃ acid, highly basic and other Korrosionsmediums.
The utility model is that a kind of design is ingenious, simple in structure, and assembling is easy, function admirable, the convenient and practical horizontal double-impeller pump of low-specific-speed it by punch and weld.
4, description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model middle pump body (11);
Fig. 3 is the structural representation of positioning ring in the utility model (6);
Fig. 4 is the side view of Fig. 3.
5, embodiment:
Embodiment:
Structural representation of the present utility model as shown in Figure 1, include motor (1), bonnet (3), I level impeller (10), II level impeller (5), the pump housing (11), I level impeller (10), II level impeller (5) places in the cavity that bonnet (3) and the pump housing (11) surrounded, and be connected with the output shaft of motor (1), the middle part of its middle pump body (11) includes shell portion (11A) and full spirality volute chamber section (11B), form one along liquid flow path direction radially outward between full spirality volute chamber section (11B) and the II level impeller (5), increase gradually, the volute chamber that section is linear in the shape of a spiral, wherein be provided with the stator bonnet (7) that the shell portion (11A) and the full spirality volute chamber section (11B) at the pump housing (11) middle part can be divided into two relatively independent cavitys between I level impeller (10) and the II level impeller (5), in the individual cavity at I level impeller (10) place, be provided with stator (8) and stator protecgulum (16), wherein stator (8) is contained in the set cavity of stator bonnet (7), stator protecgulum (16) is fixed on the stator (8), stator bonnet (7) is bearing on the positioning ring (6), and positioning ring (6) is fixed on the bonnet (3).
The above-mentioned pump housing (11) is fixed with inlet tube (19).For reducing to leak, improve the efficient of pump, between above-mentioned I level impeller (10) and the inlet tube (19), pass through sealing opening ring (18) between II level impeller (5) and the stator bonnet (7) and seal.Above-mentioned stator bonnet (7) is provided with seal ring (9) with the surface of contact of positioning ring (6).
Above-mentioned I level impeller (10), II level impeller (5) include preceding impeller plate, back impeller plate and between big cornerite, the linear leaf helical type blade of clamping.In the present embodiment, I level impeller (10) is inequality with the diameter of II level impeller (5).
The above-mentioned pump housing (11) directly is fixed on the motor (1) by the flange which is provided with.
Be the liquid that reduces to come out from the impeller axial force to positioning ring, further improve the efficient of pump, above-mentioned positioning ring (6) is made the cylindrical body of through hole (6A) for the middle part, and the position of through hole (6A) is corresponding with the spirality volute chamber of spirality volute chamber section (11B).
Above-mentioned I level impeller (10), II level impeller (5) can be sleeved on the output shaft of motor (1) by axle sleeve (12), and the shaft part between the front end of axle sleeve (12) and the bonnet (3) is provided with mechanical seal (2), and the rear end of axle sleeve (12) tightens up by nut (13) and pad (14).
Shaft part between above-mentioned bonnet (3) and the motor (1) is provided with water retaining ring (17).
Above-mentioned bonnet (3), I level impeller (10), II level impeller (5), the pump housing (11), stator bonnet (7), stator (8), stator protecgulum (16) all with sheet metal by impact briquetting, and by being welded to connect.
During the utility model work, as shown in Figure 1, at first liquid enters first order impeller through pump inlet, pass through diversion component again, the kinetic energy of liquid is converted into the pressure energy continuously, enters second level impeller, the volute chamber of the process pump housing converts kinetic energy to the higher pressure of pressure once more and can export outside the pump housing.
Claims (10)
1, the horizontal double-impeller pump of a kind of novel low-specific-speed it by punch and weld, include motor (1), bonnet (3), I level impeller (10), II level impeller (5), the pump housing (11), I level impeller (10) wherein, II level impeller (5) places in the cavity that bonnet (3) and the pump housing (11) surrounded, and be connected with the output shaft of motor (1), the middle part that it is characterized in that the pump housing (11) includes shell portion (11A) and full spirality volute chamber section (11B), form one along liquid flow path direction radially outward between full spirality volute chamber section (11B) and the II level impeller (5), increase gradually, the volute chamber that section is linear in the shape of a spiral, wherein be provided with the stator bonnet (7) that the shell portion (11A) and the full spirality volute chamber section (11B) at the pump housing (11) middle part can be divided into two relatively independent cavitys between I level impeller (10) and the II level impeller (5), in the individual cavity at I level impeller (10) place, be provided with stator (8) and stator protecgulum (16), wherein stator (8) is contained in the set cavity of stator bonnet (7), stator protecgulum (16) is fixed on the stator (8), stator bonnet (7) is bearing on the positioning ring (6), and positioning ring (6) is fixed on the bonnet (3).
2, the horizontal double-impeller pump of novel low-specific-speed it by punch and weld according to claim 1 is characterized in that the above-mentioned pump housing (11) is fixed with inlet tube (19).
3, the horizontal double-impeller pump of novel low-specific-speed it by punch and weld according to claim 2, it is characterized in that between above-mentioned I level impeller (10) and the inlet tube, between II level impeller (5) and the stator bonnet (7) by sealing opening ring (18) sealing.
4, the horizontal double-impeller pump of novel low-specific-speed it by punch and weld according to claim 1, it is characterized in that above-mentioned I level impeller (10), II level impeller (5) include preceding impeller plate, back impeller plate and between big cornerite, the linear leaf helical type blade of clamping.
5, the horizontal double-impeller pump of novel low-specific-speed it by punch and weld according to claim 1 is characterized in that the above-mentioned stator bonnet (7) and the surface of contact of positioning ring (6) are provided with seal ring (9).
6, the horizontal double-impeller pump of novel low-specific-speed it by punch and weld according to claim 1 is characterized in that the above-mentioned pump housing (11) directly is fixed on the motor (1) by the flange which is provided with.
7, the horizontal double-impeller pump of novel low-specific-speed it by punch and weld according to claim 1, it is characterized in that above-mentioned positioning ring (6) makes the cylindrical body of through hole (6A) for the middle part, and the position of through hole (6A) is corresponding with the spirality volute chamber of spirality volute chamber section (11B).
8, according to claim 1 or 2 or 3 or 4 or 5 or the 6 or 7 horizontal double-impeller pumps of described novel low-specific-speed it by punch and weld, it is characterized in that above-mentioned I level impeller (10), II level impeller (5) can be sleeved on the output shaft of motor (1) by axle sleeve (12), and the shaft part between the front end of axle sleeve (12) and the bonnet (3) is provided with mechanical seal (2), and the rear end of axle sleeve (12) tightens up by nut (13) and pad (14).
9, the horizontal double-impeller pump of novel low-specific-speed it by punch and weld according to claim 8 is characterized in that the shaft part between above-mentioned bonnet (3) and the motor (1) is provided with water retaining ring (17).
10, the horizontal double-impeller pump of novel low-specific-speed it by punch and weld according to claim 8, it is characterized in that above-mentioned bonnet (3), I level impeller (10), II level impeller (5), the pump housing (11), stator bonnet (7), stator (8), stator protecgulum (16) all with sheet metal by impact briquetting, and by being welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02248171 CN2600618Y (en) | 2002-09-19 | 2002-09-19 | Low ratio speed punching welding moulding horizontal double-stage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02248171 CN2600618Y (en) | 2002-09-19 | 2002-09-19 | Low ratio speed punching welding moulding horizontal double-stage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2600618Y true CN2600618Y (en) | 2004-01-21 |
Family
ID=34149326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02248171 Expired - Lifetime CN2600618Y (en) | 2002-09-19 | 2002-09-19 | Low ratio speed punching welding moulding horizontal double-stage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2600618Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007082417A1 (en) * | 2006-01-21 | 2007-07-26 | Yangjiang City Xinli Industry Co., Ltd | Food centrifugal pump formed by pressing and welding |
| CN105134610A (en) * | 2015-08-20 | 2015-12-09 | 鸿浩泵业有限公司 | Efficient low-speed anti-corrosion and anti-abrasion pump |
| CN106401982A (en) * | 2016-11-30 | 2017-02-15 | 上海中韩杜科泵业制造有限公司 | Miniature stamped pump |
-
2002
- 2002-09-19 CN CN 02248171 patent/CN2600618Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007082417A1 (en) * | 2006-01-21 | 2007-07-26 | Yangjiang City Xinli Industry Co., Ltd | Food centrifugal pump formed by pressing and welding |
| US8113802B2 (en) | 2006-01-21 | 2012-02-14 | Guangdong Winning Pumps Industrial Co., Ltd. | Food centrifugal pump formed by stamping and welding having a seal arrangement between the impeller and casing |
| CN105134610A (en) * | 2015-08-20 | 2015-12-09 | 鸿浩泵业有限公司 | Efficient low-speed anti-corrosion and anti-abrasion pump |
| CN106401982A (en) * | 2016-11-30 | 2017-02-15 | 上海中韩杜科泵业制造有限公司 | Miniature stamped pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YANGJIANG CITY XINLI INDUSTRIAL CO., LTD. Free format text: FORMER OWNER: YANGJIANG XINYUEHUA STAINLESS STEEL PUMP CO., LTD. Effective date: 20050527 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20050527 Address after: 529500 second industrial zone, Chengbei North Road, Yangjiang, Guangdong Patentee after: Yangjiang Xinli Industrial Co., Ltd. Address before: 529500 second industrial zone, Chengbei Road, Yangjiang, Guangdong Patentee before: Xinyuehua Stainless Steel Pump Co., Ltd., Yangjiang City |
|
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG YONGLI PUMP INDUSTRY CO., LTD. Free format text: FORMER OWNER: YANGJIANG XINLI INDUSTRIAL CO., LTD. Effective date: 20120220 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120220 Address after: 529500 second industrial zone, Chengbei North Road, Jiangcheng District, Guangdong, Yangjiang Patentee after: Guangdong Winning Pumps Industrial Co., Ltd. Address before: 529500 second industrial zone, Chengbei North Road, Yangjiang, Guangdong Patentee before: Yangjiang Xinli Industrial Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120919 Granted publication date: 20040121 |