CN104235053A - High-efficiency and low-specific speed centrifugal water pump - Google Patents
High-efficiency and low-specific speed centrifugal water pump Download PDFInfo
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- CN104235053A CN104235053A CN201410415535.5A CN201410415535A CN104235053A CN 104235053 A CN104235053 A CN 104235053A CN 201410415535 A CN201410415535 A CN 201410415535A CN 104235053 A CN104235053 A CN 104235053A
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- impeller
- water
- water pump
- spiral case
- water inlet
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Abstract
The invention relates to a high-efficiency and low-specific speed centrifugal water pump, which comprises a volute, an O-shaped rubber seal ring, an impeller, a water stopper, a water inlet flange, a rectangular rubber seal ring, a fastener, a water seal, a water pump shaft, arc-shaped grooves, blades and back blades, wherein the volute is connected with the water pump shaft; the water seal is arranged between the volute and the water pump shaft; the impeller is arranged in the cavity of the volute; the impeller and the water pump shaft are connected through the fastener; the water inlet flange and the volute are connected through a bolt; the O-shaped rubber seal ring is arranged between the water inlet flange and the volute; the rectangular rubber seal ring is arranged between the impeller and the water inlet flange; the water inlet flange is connected with the water stopper. According to the high-efficiency and low-specific speed centrifugal water pump provided by the invention, concave structures are evenly arranged between the blades of the impeller; the concave structures are in favor of the reduction of the flow loss of the impeller and the improvement of the efficiency of the water pump; the blades are evenly arranged on the back of the impeller, and rotate along with the impeller, pressure is generated by the back blades, and therefore the axial force of the water pump is advantageously balanced and the reliability of the water pump is advantageously improved.
Description
Technical field
The invention belongs to technical field of hydraulic pressure, be specifically related to a kind of efficient low-specific-speed Centrifugal water pump.
Background technique
At present, specific speed high-lift centrifugal water pump impeller hydraulic loss between 20 ~ 50 is comparatively large, has a strong impact on the type pump efficiency; Meanwhile, because pump head is high, cause impeller leading faces and rear surface liquid pressure difference larger, impeller high speed rotating produces axial force, affects the normal operation of water pump, the present invention is directed to the problems referred to above, design a kind of novel impeller and water pump structure, reduce water pump flow losses on the one hand, improve pump efficiency; On the other hand by setting up rectangular rubber seal ring structure, balancing axial thrust, improve water pump reliability.
Summary of the invention
The present invention is exactly the problem that centrifugal water pump impeller hydraulic loss is comparatively large in order to solve, impeller leading faces is larger with rear surface liquid pressure difference, and provides a kind of efficiently low-specific-speed Centrifugal water pump.The present invention optimizes water pump flow field, reduces impeller flow losses, improves pump efficiency; Set up at wheel backface and be evenly arranged blade, between impeller and water inlet coupling plate, set up rectangular seal ring structure balancing axial thrust.
The technological scheme that the present invention solves: a kind of efficient low-specific-speed Centrifugal water pump, it comprises spiral case 1, O type rubber seal 2, impeller 3, water blocking 4, water inlet coupling plate 5, rectangular rubber seal ring 6, fastening piece 7, water seal 8, water pump spindle 9, arc groove 10, blade 11 and back side blade 12, spiral case 1 is connected with water pump spindle 9, water seal 8 is provided with between spiral case 1 and water pump spindle 9, impeller 3 is arranged in the cavity of spiral case 1, impeller 3 is connected by fastening piece 7 with water pump spindle 9, water inlet coupling plate 5 and spiral case 1 are bolted, O type rubber seal 2 is provided with between water inlet coupling plate 5 and spiral case 1, rectangular rubber seal ring 6 is provided with between impeller 3 and water inlet coupling plate 5, water inlet coupling plate 5 is connected with water blocking 4.
Further, uniformly on impeller 3 be provided with arc divergent shape blade 11, be provided with arc groove 10 between blade 11, impeller 3 back side is provided with arc divergent shape back side blade 12.
Further, spiral case 1 is provided with water outlet, water inlet coupling plate 5 is provided with water intake, and described water outlet is communicated with in the cavity of described spiral case 1, and the cavity of described spiral case 1 is communicated with the water intake of water inlet coupling plate 5.
Further, impeller 3 diameter D1 is 180mm ~ 220mm, arc groove 10 is 0.4 ~ 0.6 at the groove one end distribution diameter of a circle D2 near impeller 3 center and D1 ratio, the radius R 1 of arc groove 10 is 95mm ~ 110mm, the circular arc abscissa L1 of arc groove 10 is 62mm ~ 66mm, y coordinate L2 is 34mm ~ 38mm, and the depth H 2 of arc groove 10 is 1.5mm ~ 2.5mm, and exit angle α is 41 ° ~ 45 °; The radius R 2 of the back side blade 12 of impeller 3 is 82mm ~ 87mm, the circular arc abscissa L3 of back side blade 12 is 8mm ~ 11mm, y coordinate L4 is 52mm ~ 58mm, and the height H 1 of back side blade 12 is 1.5mm ~ 2.5mm, and the exit angle β of back side blade 12 is 41 ° ~ 45 °.
The present invention compared with prior art its beneficial effect is: the present invention sets up rectangular seal ring structure between impeller and water inlet coupling plate, the low pressure liquid of water inlet separates with spiral case inner high voltage liquid, increase the gap between impeller and water inlet coupling plate simultaneously, make impeller leading faces substantially equal with rear surface liquid pressure, water pump rotating liquid produces axial force and reduces, the increase in gap reduces the flow losses between impeller and water inlet coupling plate, is conducive to the raising of efficiency; Be evenly arranged concave structure between impeller blade, this structure is conducive to the flow losses reducing impeller, improves pump efficiency; Wheel backface is evenly arranged blade, and along with wheel rotation, back side blade produces pressure and is conducive to heeling pump axial force, improves water pump reliability; Adopt the reduction flow losses of the water pump vane of the present invention's design, pump efficiency improves 5% ~ 10%; Axial force complete equilibrium, improves water pump reliability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 be impeller partly cut open structural representation;
Fig. 3 is the A direction view of Fig. 2;
Fig. 4 is the B direction view of Fig. 2.
Embodiment
As shown in Figure 1, a kind of efficient low-specific-speed Centrifugal water pump, it comprises spiral case 1, O type rubber seal 2, impeller 3, water blocking 4, water inlet coupling plate 5, rectangular rubber seal ring 6, fastening piece 7, water seal 8, water pump spindle 9, arc groove 10, blade 11 and back side blade 12, spiral case 1 is connected with water pump spindle 9, water seal 8 is provided with between spiral case 1 and water pump spindle 9, impeller 3 is arranged in the cavity of spiral case 1, impeller 3 is connected by fastening piece 7 with water pump spindle 9, water inlet coupling plate 5 and spiral case 1 are bolted, O type rubber seal 2 is provided with between water inlet coupling plate 5 and spiral case 1, rectangular rubber seal ring 6 is provided with between impeller 3 and water inlet coupling plate 5, water inlet coupling plate 5 is connected with water blocking 4.Uniformly on described impeller 3 be provided with arc divergent shape blade 11, be provided with arc groove 10 between blade 11, impeller 3 back side is provided with arc divergent shape back side blade 12.Described spiral case 1 is provided with water outlet, and water inlet coupling plate 5 is provided with water intake, and described water outlet is communicated with in the cavity of described spiral case 1, and the cavity of described spiral case 1 is communicated with the water intake of water inlet coupling plate 5.Described impeller 3 diameter D1 is 180mm, arc groove 10 is 0.4 at the groove one end distribution diameter of a circle D2 near impeller 3 center and D1 ratio, the radius R 1 of arc groove 10 is 95mm, the circular arc abscissa L1 of arc groove 10 is 62mm, y coordinate L2 is 34mm, the depth H 2 of arc groove 10 is 1.5mm, and exit angle α is 41 °; The radius R 2 of the back side blade 12 of impeller 3 is 82mm, and the circular arc abscissa L3 of back side blade 12 is 8mm, and y coordinate L4 is 52mm, and the height H 1 of back side blade 12 is 1.5mm, and the exit angle β of back side blade 12 is 41 °.
Working principle: water pump spindle 9 is connected by fastening piece 7 with impeller 3, water pump spindle 9 impeller 3, liquid is by the water intake water inlet on water inlet coupling plate 5, enter the water intake of impeller 3, it is the kinetic energy of liquid that impeller 3 rotates kinetic transformation, and high-speed liquid enters spiral case 1 runner by the water outlet on impeller 3, in runner, liquid kinetic transformation is potential energy, increase liquid lift, finally by the water outlet water outlet on spiral case 1, complete the conversion of energy.
Claims (4)
1. an efficient low-specific-speed Centrifugal water pump, it comprises spiral case (1), O type rubber seal (2), impeller (3), water blocking (4), water inlet coupling plate (5), rectangular rubber seal ring (6), fastening piece (7), water seal (8), water pump spindle (9), arc groove (10), blade (11) and back side blade (12), it is characterized in that: spiral case (1) is connected with water pump spindle (9), water seal (8) is provided with between spiral case (1) and water pump spindle (9), impeller (3) is arranged in the cavity of spiral case (1), impeller (3) is connected by fastening piece (7) with water pump spindle (9), water inlet coupling plate (5) and spiral case (1) are bolted, O type rubber seal (2) is provided with between water inlet coupling plate (5) and spiral case (1), rectangular rubber seal ring (6) is provided with between impeller (3) and water inlet coupling plate (5), water inlet coupling plate (5) is connected with water blocking (4).
2. the efficient low-specific-speed Centrifugal water pump of one according to claim 1, it is characterized in that: impeller (3) is above uniform is provided with arc divergent shape blade (11), be provided with arc groove (10) between blade (11), impeller (3) back side is provided with arc divergent shape back side blade (12).
3. the efficient low-specific-speed Centrifugal water pump of one according to claim 1, it is characterized in that: (1) is provided with water outlet to spiral case, water inlet coupling plate (5) is provided with water intake, described water outlet is communicated with in the cavity of described spiral case (1), and the cavity of described spiral case (1) is communicated with the water intake of water inlet coupling plate (5).
4. the efficient low-specific-speed Centrifugal water pump of one according to claim 2, it is characterized in that: impeller (3) diameter D1 is 180mm ~ 220mm, arc groove (10) is 0.4 ~ 0.6 at the groove one end distribution diameter of a circle D2 near impeller (3) center and D1 ratio, the radius R 1 of arc groove (10) is 95mm ~ 110mm, the circular arc abscissa L1 of arc groove (10) is 62mm ~ 66mm, y coordinate L2 is 34mm ~ 38mm, the depth H 2 of arc groove (10) is 1.5mm ~ 2.5mm, and exit angle α is 41 ° ~ 45 °; The radius R 2 of the back side blade (12) of impeller (3) is 82mm ~ 87mm, the circular arc abscissa L3 of back side blade (12) is 8mm ~ 11mm, y coordinate L4 is 52mm ~ 58mm, the height H 1 of back side blade (12) is 1.5mm ~ 2.5mm, and the exit angle β of back side blade (12) is 41 ° ~ 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415535.5A CN104235053A (en) | 2014-08-22 | 2014-08-22 | High-efficiency and low-specific speed centrifugal water pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410415535.5A CN104235053A (en) | 2014-08-22 | 2014-08-22 | High-efficiency and low-specific speed centrifugal water pump |
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| Publication Number | Publication Date |
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| CN104235053A true CN104235053A (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410415535.5A Pending CN104235053A (en) | 2014-08-22 | 2014-08-22 | High-efficiency and low-specific speed centrifugal water pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613004A (en) * | 2015-01-19 | 2015-05-13 | 安徽舜禹水务实业有限公司 | Water pump impeller |
| CN105351205A (en) * | 2015-12-11 | 2016-02-24 | 中国北方发动机研究所(天津) | Novel centrifugal type water pump |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1756646A1 (en) * | 1990-08-14 | 1992-08-23 | Уральский филиал Теплотехнического научно-исследовательского института им.Ф.Э.Дзержинского | Working wheel of centrifugal pump |
| CN2541637Y (en) * | 2002-04-09 | 2003-03-26 | 黑龙江双锅锅炉股份有限公司 | Orifice ring self-compensating constant gap sealing structure of centrifugal pump |
| CN2660187Y (en) * | 2003-11-17 | 2004-12-01 | 江苏迎浪科技集团有限公司 | Low speed ratio centrifugal pump |
| US20060171800A1 (en) * | 2003-12-05 | 2006-08-03 | Daikin Industries, Ltd. | Drain pump and air conditioner with the same |
| CN201705677U (en) * | 2010-03-05 | 2011-01-12 | 江苏长凯机械设备有限公司 | Semi-open impeller submerged slurry pump |
| CN102003408A (en) * | 2010-05-07 | 2011-04-06 | 江苏大学 | Low specific speed centrifugal impeller with radial backflow holes |
| CN202266444U (en) * | 2011-09-30 | 2012-06-06 | 杭州萧山美特轻工机械有限公司 | Semi-opened type pulp pump |
| CN202360463U (en) * | 2011-11-15 | 2012-08-01 | 黄晓东 | Split volute and water pump with the volute |
-
2014
- 2014-08-22 CN CN201410415535.5A patent/CN104235053A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1756646A1 (en) * | 1990-08-14 | 1992-08-23 | Уральский филиал Теплотехнического научно-исследовательского института им.Ф.Э.Дзержинского | Working wheel of centrifugal pump |
| CN2541637Y (en) * | 2002-04-09 | 2003-03-26 | 黑龙江双锅锅炉股份有限公司 | Orifice ring self-compensating constant gap sealing structure of centrifugal pump |
| CN2660187Y (en) * | 2003-11-17 | 2004-12-01 | 江苏迎浪科技集团有限公司 | Low speed ratio centrifugal pump |
| US20060171800A1 (en) * | 2003-12-05 | 2006-08-03 | Daikin Industries, Ltd. | Drain pump and air conditioner with the same |
| CN201705677U (en) * | 2010-03-05 | 2011-01-12 | 江苏长凯机械设备有限公司 | Semi-open impeller submerged slurry pump |
| CN102003408A (en) * | 2010-05-07 | 2011-04-06 | 江苏大学 | Low specific speed centrifugal impeller with radial backflow holes |
| CN202266444U (en) * | 2011-09-30 | 2012-06-06 | 杭州萧山美特轻工机械有限公司 | Semi-opened type pulp pump |
| CN202360463U (en) * | 2011-11-15 | 2012-08-01 | 黄晓东 | Split volute and water pump with the volute |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104613004A (en) * | 2015-01-19 | 2015-05-13 | 安徽舜禹水务实业有限公司 | Water pump impeller |
| CN105351205A (en) * | 2015-12-11 | 2016-02-24 | 中国北方发动机研究所(天津) | Novel centrifugal type water pump |
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Application publication date: 20141224 |