CN101985942A - Tangent pump for ships - Google Patents
Tangent pump for ships Download PDFInfo
- Publication number
- CN101985942A CN101985942A CN 201010548917 CN201010548917A CN101985942A CN 101985942 A CN101985942 A CN 101985942A CN 201010548917 CN201010548917 CN 201010548917 CN 201010548917 A CN201010548917 A CN 201010548917A CN 101985942 A CN101985942 A CN 101985942A
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- pump
- impeller
- mechanical seal
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Abstract
The invention discloses a tangent pump for ships, comprising a motor, a bracket, a pump body, a pump shaft, a seal expansion piece, a mechanical seal, a gland, an impeller, a pump cover and a nut, wherein the bracket is directly connected with the motor and the pump body; the pump shaft is provided with the mechanical seal and the seal expansion piece; the gland and the pump body are matched so as to position the mechanical seal axially and form a seal cavity for storing lubricating oil; the impeller is arranged on the end part of the pump shaft and screwed by the nut to form a structure rotating along with the motor; and the gland and the pump body are matched to form a pump chamber for accommodating the impeller. In the invention, the impeller is in an open structure, and is gear-shaped along the axial direction; 8-16 long and short radial blades are exposed and evenly distributed on the lateral plate surface of the impeller in an alternating mode, an axial balance hole is arranged between the short blade and the long blade, and each radial blade has wider inside and narrower outside; the impeller disk friction loss is small, the axial force is small, the structure strength is high, and the impact force resistance is strong; and the cooling condition of the mechanical seal is favorable, thus an oversize temperature difference between the mechanical seal and a medium can not occur and the mechanical seal can not be damaged easily.
Description
Technical field
The present invention relates to a kind of centrifugal water pump, specifically, the present invention relates to a kind of tangent pump of forming by the open architecture impeller, the supporting water pressure tank peculiar to vessel of this pump.
Background technique
The living water of large and medium-sized boats and ships and wash water are concentrated by the water pressure tank of configuration and are supplied with.Water pressure tank peculiar to vessel is a kind of year pressure accumulator, and its hydraulic pressure is kept by pump.The existing supporting water pump of water pressure tank mainly contains two classes, and using maximum is horizontal centrifugal vortex pump, secondly is vertical centrifugal pump, and the hydraulic performance of these two kinds of pumps all can satisfy the supporting requirement of water pressure tank peculiar to vessel.But, during actual the use the supporting mechanical seal of the impeller of horizontal centrifugal vortex pump and vertical centrifugal pump fragile, directly influence the reliability that boats and ships supply water.The impeller of horizontal centrifugal vortex pump is a closed type structure, and its thin-walled cover plate cannot stand the impact of impurity in the water and ftractures.The structural imperfection of vertical centrifugal pump is that axial force causes motor string axle, and string axle makes the mechanical sealing element unidirectional load excessive and decrease.In addition, vertical centrifugal pump the start up period lack cooling protection to mechanical seal, the friction pair of mechanical seal is in the dry friction situation before the suction of being unrealized, its temperature is very high.In case realize suction, because of water causes mechanical seal explosion damage with friction pair temperature difference Da Yi.Boats and ships are a kind of flowing carriers, are subjected to condition restriction and space little, and inconvenient maintenance is so have high requirements to the reliability of corollary equipment.Existing horizontal centrifugal vortex pump and vertical centrifugal pump do not meet the supporting requirement of water pressure tank peculiar to vessel because of there being structural imperfection aspect reliability.
Summary of the invention
The present invention is primarily aimed at existing ship with supporting horizontal peripheral pump or the fragile present situation of vertical centrifugal pump of water pressure tank, proposes a kind of rational in infrastructure, good reliability, and hydraulic performance meets the tangent pump peculiar to vessel of the supporting requirement of water pressure tank peculiar to vessel.
The present invention is achieved through the following technical solutions technical goal.
Tangent pump peculiar to vessel, it comprises motor, carriage, the pump housing, pump shaft, sealing expanding piece, mechanical seal, gland, impeller, pump cover and nut.Described carriage is the coupling of frame structure, connect the motor and the pump housing on the end face that its two ends are parallel to each other respectively, pump shaft is connected with the motor shaft fit, pump shaft stretches into suit mechanical seal and sealing expanding piece on the shaft part in the pump housing, and gland cooperates not only axially locating mechanical seal but also forms a seal chamber that holds lubricant oil with the pump housing.Described impeller location and installation becomes with the motor rotational structure at the pump shaft shaft end and by nut check, and pump cover cooperates the pump chamber that constitutes the arrangement impeller with the pump housing.Its improvements are: described impeller is an open architecture, axially be gear shape, the exposed alternate radial blade of uniform length on its lateral plates, the lateral plates middle part is provided with the longitudinal balance hole of a Φ 5mm～Φ 10mm between each length radial blade, the shape and the pump chamber of radial blade width aspect match, be inner wide and outer narrow, angle α=6 between the hypotenuse of radial blade and the side plate plane °～10 °.
Exposed uniform 8～16 radial blades that length is alternate on the impeller lateral plates, impeller diameter is greatly then got the radial blade of a greater number, otherwise then gets the radial blade of lesser amt.
The present invention compared with prior art has following good effect:
1, the present invention adopts the impeller of open architecture, its simple in structure, easy manufacturing;
2, the impeller of open architecture only has the side plate face, has reduced disc friction, and the lateral plates one-tenth-value thickness 1/10 is bigger, and so strong shock resistance is long service life;
3, the present invention adopts the impeller of radial blade structure, blade water intake and water outlet relative current angle are 90 °, and flow---head curve is smooth, and lift changes little during changes in flow rate, this pump performance curve satisfies the operating mode demand of water pressure tank peculiar to vessel, keeps water delivery pressure constant;
4, the unshrouded impeller end thrust is little, and mechanical seal is turned round under the normality situation, good sealing effect and not fragile;
5, adjust the pump housing and impeller package size, can obtain different performance curves, easily satisfy the demand of different operating modes.
Description of drawings
Fig. 1 is a structural profile schematic representation of the present invention;
Fig. 2 is the axial enlarged diagram of Fig. 1 impeller;
Fig. 3 is that enlarged diagram is analysed and observe in the side of Fig. 2.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, the invention will be further described.
Tangent pump peculiar to vessel shown in Figure 1 is a kind of vertical structure pump, and it comprises motor 1, carriage 2, the pump housing 3, pump shaft 4, sealing expanding piece 5, mechanical seal 6, gland 7, impeller 8, pump cover 9 and nut 10.The carriage 2 that is positioned at the stage casing is the coupling of frame structure, and its both ends of the surface are parallel to each other, and the upper-end surface connects motor 1, and the lower end surface connects the pump housing 3.Pump shaft 4 is connected with the output axle head fit of motor 1, and pump shaft 4 stretches into suit mechanical seal 6 and sealing expanding piece 5 on the shaft part in the pump housing 3.Gland 7 cooperates not only axially locating mechanical seal 6 but also forms a seal chamber that holds lubricant oil with the pump housing 3.Impeller 8 location and installation lock with motor 1 rotational structure at pump shaft 4 shaft ends and by nut 10, and pump cover 9 cooperates the pump chamber that constitutes arrangement impeller 8 with the pump housing 3.Impeller 8 among the present invention is an open architecture, axially is gear shape, the exposed alternate radial blade 8.1 of uniform length on its lateral plates.Present embodiment is JT type ship tangent pump, this pump duty Q=2.0m
3/ h, lift H=50m, necessary electromotor 1 power 2.2kw, rotating speed is 2900r/min.12 blades 8.1 that length is alternate of supporting impeller 8 configurations, wherein 6 be linear leaf, other 6 be short blade.In order to reduce end thrust, between the alternate blade 8.1 of each length of impeller 8 lateral plates middle part, be provided with the equalizing orifice 8.2 of a Φ 6mm.The shape and the pump chamber of radial blade 8.1 width aspects match, i.e. inner wide and outer narrow, angle α=8 between the hypotenuse of radial blade 8.1 and the side plate plane °.
Claims (2)
1. tangent pump peculiar to vessel, it comprises motor (1), carriage (2), the pump housing (3), pump shaft (4), sealing expanding piece (5), mechanical seal (6), gland (7), impeller (8), pump cover (9) and nut (10); Described carriage (2) is the coupling of frame structure, connect the motor (1) and the pump housing (3) on the end face that its two ends are parallel to each other respectively, pump shaft (4) closes with motor (1) axle sleeve and is connected, pump shaft (4) stretches on the shaft part in the pump housing (3) suit mechanical seal (6) and seals expanding piece (5), and gland (7) cooperates not only axially locating mechanical seal (6) but also forms a seal chamber that holds lubricant oil with the pump housing (3); Described impeller (8) location and installation locks with motor (1) rotational structure at pump shaft (4) shaft end and by nut (10), and pump cover (9) cooperates the pump chamber that constitutes arrangement impeller (8) with the pump housing (3); It is characterized in that: described impeller (8) is an open architecture, axially be gear shape, the exposed alternate radial blade (8.1) of uniform length on its lateral plates, the lateral plates middle part is provided with the longitudinal balance hole (8.2) of a Φ 5mm～Φ 10mm between each length radial blade (8.1), the shape and the pump chamber of radial blade (8.1) width aspect match, be inner wide and outer narrow, the hypotenuse of radial blade (8.1) and angle α=6 between the side plate plane °～10 °.
2. tangent pump peculiar to vessel according to claim 1 is characterized in that: the exposed alternate radial blade (8.1) of uniform 8～16 length on described impeller (8) lateral plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010548917 CN101985942A (en) | 2010-11-18 | 2010-11-18 | Tangent pump for ships |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010548917 CN101985942A (en) | 2010-11-18 | 2010-11-18 | Tangent pump for ships |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101985942A true CN101985942A (en) | 2011-03-16 |
Family
ID=43710327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010548917 Pending CN101985942A (en) | 2010-11-18 | 2010-11-18 | Tangent pump for ships |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101985942A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277319A (en) * | 2013-06-08 | 2013-09-04 | 江苏德华泵业有限公司 | Marine tangent pump |
| CN107045570A (en) * | 2017-03-22 | 2017-08-15 | 浙江工业大学之江学院 | A kind of accurate selection method of centrifugal pump group |
| CN107725392A (en) * | 2016-08-11 | 2018-02-23 | 浙江三花汽车零部件有限公司 | Electronic pump |
| CN109026737A (en) * | 2018-08-02 | 2018-12-18 | 广州市能动机电设备有限公司 | A kind of centrifugal water pump |
| CN110185609A (en) * | 2019-06-18 | 2019-08-30 | 江苏德华泵业有限公司 | A kind of high-pressure gear sewage pump |
| CN110242565A (en) * | 2019-06-18 | 2019-09-17 | 江苏德华泵业有限公司 | A kind of marine diesel emergency fire pump |
| CN117780653A (en) * | 2024-02-23 | 2024-03-29 | 江苏振华海科装备科技股份有限公司 | Marine low-vibration centrifugal pump |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5224821A (en) * | 1991-02-27 | 1993-07-06 | Aisin Seiki Kabushiki Kaisha | Water pump |
| CN2491636Y (en) * | 2001-07-25 | 2002-05-15 | 上海凯泉泵业（集团）有限公司 | Combined modularized tangent pump |
| JP2006029214A (en) * | 2004-07-16 | 2006-02-02 | Fuji Koki Corp | Drain pump |
| CN201865924U (en) * | 2010-11-18 | 2011-06-15 | 姜堰市德华船用泵业制造有限公司 | Marine tangent pump |
-
2010
- 2010-11-18 CN CN 201010548917 patent/CN101985942A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5224821A (en) * | 1991-02-27 | 1993-07-06 | Aisin Seiki Kabushiki Kaisha | Water pump |
| CN2491636Y (en) * | 2001-07-25 | 2002-05-15 | 上海凯泉泵业（集团）有限公司 | Combined modularized tangent pump |
| JP2006029214A (en) * | 2004-07-16 | 2006-02-02 | Fuji Koki Corp | Drain pump |
| CN201865924U (en) * | 2010-11-18 | 2011-06-15 | 姜堰市德华船用泵业制造有限公司 | Marine tangent pump |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103277319A (en) * | 2013-06-08 | 2013-09-04 | 江苏德华泵业有限公司 | Marine tangent pump |
| CN103277319B (en) * | 2013-06-08 | 2016-03-30 | 江苏德华泵业有限公司 | Marine tangent pump |
| CN107725392A (en) * | 2016-08-11 | 2018-02-23 | 浙江三花汽车零部件有限公司 | Electronic pump |
| CN107725392B (en) * | 2016-08-11 | 2020-10-27 | 浙江三花汽车零部件有限公司 | Electronic pump |
| CN107045570A (en) * | 2017-03-22 | 2017-08-15 | 浙江工业大学之江学院 | A kind of accurate selection method of centrifugal pump group |
| CN107045570B (en) * | 2017-03-22 | 2020-06-02 | 浙江工业大学之江学院 | Accurate model selection method for centrifugal pump unit |
| CN109026737A (en) * | 2018-08-02 | 2018-12-18 | 广州市能动机电设备有限公司 | A kind of centrifugal water pump |
| CN110185609A (en) * | 2019-06-18 | 2019-08-30 | 江苏德华泵业有限公司 | A kind of high-pressure gear sewage pump |
| CN110242565A (en) * | 2019-06-18 | 2019-09-17 | 江苏德华泵业有限公司 | A kind of marine diesel emergency fire pump |
| CN110185609B (en) * | 2019-06-18 | 2024-04-16 | 江苏德华泵业有限公司 | High-pressure gear sewage pump |
| CN117780653A (en) * | 2024-02-23 | 2024-03-29 | 江苏振华海科装备科技股份有限公司 | Marine low-vibration centrifugal pump |
| CN117780653B (en) * | 2024-02-23 | 2024-04-30 | 江苏振华海科装备科技股份有限公司 | Marine low-vibration centrifugal pump |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20110316 |