CN202117941U

CN202117941U - Submersible pump

Info

Publication number: CN202117941U
Application number: CN201120034315XU
Authority: CN
Inventors: 马克西米利安·贝克; 汉内斯·翰玛
Original assignee: Rosenbauer International AG
Current assignee: Rosenbauer International AG
Priority date: 2010-02-03
Filing date: 2011-02-01
Publication date: 2012-01-18
Anticipated expiration: 2021-02-01
Also published as: CN102261339A; CN102261339B; AT11893U1; DE202011000193U1

Abstract

The utility model relates to a submersible pump (1), which is provided with a tubular pressure sealing inner sleeve (6), a driving motor (17) of a pump unit (33) arranged inside the inner sleeve and an outer sleeve (3) wrapped the inner sleeve (6) through a gap (10). A pump outer cover (4) is arranged at the end portion (2) of the front side of the outer sleeve (3). A pump impeller (23) rotatably connected with a motor shaft (19) of the driving motor (17) is arranged inside an annular space (22). An annular piece (15) is arranged between the pump outer cover (4) and the end portions of the front side of the inner sleeve (6), and the motor shaft (19) penetrates through the annular piece (15). A bearing sealing device (25) of the motor shaft (19) is configured with the annular piece (15). A filter body (48) is fixed on the outer sleeve (3) and fixed inside the pump outer cover (4) and keeps a certain distance from the pump outer cover. An annular liquid flow flange (43) is arranged on the pump outer cover (4), and the annular liquid flow flange (43) protrudes out of the end portion (2) of the front side of the outer sleeve (3) along the bearing face direction of the submersible pump (1).

Description

Submersible pump

Technical field

The utility model relate to a kind of submersible pump (water pump, Tauchpumpe).

Background technique

From container or space, extract the liquid of productive set out, like the liquid because of productive sets such as high-order water effect, the leakages of pipeline liquid, the device of knowing altogether is exactly a motor-drive pump; This is a kind of radial blade machinery (Radialstroemungsmaschine); It has duplex sheath, wherein, in the interior cover drive motor has been installed; Be used for the pump impeller of driven pump unit, and seal; Overcoat has surrounded interior cover, has a kind of medium between the interior overcoat, and the pump unit at its terminal through being installed in overcoat and interior cover is transported to the pipe joint of pump top.

Summary of the invention

The purpose of the utility model provides a kind of submersible pump, and it can be drained filled with fluid or container or space that partially liq is housed, and realizes lower liquid level.

For realizing the foregoing invention purpose, the utility model provides a kind of submersible pump, and it has: the pressure-tight interior cover of a tubulose; One is arranged on the drive motor of the pump unit in the interior cover; One overcoat with cover in the spacing encirclement; One is arranged on the pump outer cover of the front side end of overcoat; One is arranged in the annular space of pump outer cover and the pump impeller that is connected with the motor shaft turn of drive motor; One is arranged on the front side end of interior cover and the ring part between the pump outer cover, and it is passed by motor drive shaft, and is furnished with the associated sealing arrangement for bearings of motor drive shaft; And one in the scope of pump outer cover, distance and the filter of surrounding above-mentioned overcoat at certain intervals; Wherein, the pump outer cover is provided with the flow wheel rim of a ring-type, and it protrudes in the front side end of overcoat along the supporting surface direction of submersible pump.

The advantage of the submersible pump of above-mentioned the utility model is; Through the flow wheel rim on the pump outer cover; When the slit is low, can make the entrance slit that is suitable for flowing of liquid reach lower slit height, can realize higher transmission efficiency and lower residual liquid level thus.

According to the utility model one embodiment, the outer circumferential face of flow wheel rim is set to the truncated cone side.When entrance slit hour, the liquid that pump impeller sucks can be realized the stratiform flow, can guarantee that thus residual water level is low, submersible pump efficient is high.

According to the utility model one embodiment, pump outer cover preferably its periphery is provided with supporting member, and these supporting members are outwards outstanding towards the direction of supporting surface.In another embodiment, the height of flow wheel rim is less than the height of said supporting member.Preferably, the height of flow wheel rim is 8-20mm with the gap of the height of supporting member.The advantage of these technological schemes is, can not be lower than the minimum altitude of entrance slit, has so just kept the transmission of medium and the cooling of drive motor.

According to another embodiment of the utility model, the pump outer cover has ring part, and locatees through the annex that centers on this ring part front, makes itself and axis concentric.This technological scheme has advantage equally, because locate mutually through the high assembly precision ground of motor drive shaft in the pump outer cover that has pump impeller and annular space, can realize the high efficiency of pump unit.

According to the further embodiment of the utility model, annular space is towards the direction and the rim adjacency of supporting surface, and this rim is fixed on the pump outer cover, and has inflow entrance.Its advantage is to simplify the installation and maintenance of pump unit.

According to another embodiment of the utility model, filter is fixing on the coat along the total height direction adjustable ground of submersible pump, and is equipped with the base plate that can form supporting surface.Its advantage is to regulate the height of entrance slit.

According to the another further embodiment of the utility model, the motor shaft seal is to form through the inclined-plane seal ring that the hole at ring part is provided with; It can further be provided with in the axial direction and inclined-plane seal ring bearing ring seal spare at interval.Liquid seal when its advantage has been to guarantee motor drive shaft work avoids liquid to infiltrate in the interior space of interior cover, has also avoided drive system to produce fault thus.

According to the utility model embodiment again, between inclined-plane seal ring and bearing ring seal spare, be provided with the ring part that is used for leakage.Its advantage is that the possible seepage of the envelope system during motor drive shaft work can not cause negative effect to drive motor.

In order to understand the utility model better, further specify the utility model below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the schematic perspective view of the submersible pump that designs according to the utility model;

Fig. 2 is the submersible pump that designs according to the utility model, by the zoning plan of II-II line cutting among Fig. 1.

Embodiment

For the ease of understanding, it is the parts marks that the same parts in the different mode of executions all adopts identical reference character, wherein, in the enlightenment that in integral body is described, is comprised, on meaning identical parts all to use identical reference character be that the parts mark is explained.Equally, the azimuth information of in description, being mentioned like top, below, side etc., all is as the criterion with direct description and figure, when the position changes, just representes a new position on meaning.In addition, the single technical characteristics that in different embodiments, shows or describe or the combination of technical characteristics can provide the solution of the utility model independently of one another.

And can understand like this for the numerical value of being mentioned in specifically describing; It comprises all parts, such as numeral 1 to 10, be appreciated that for total size following be limited to 1, on be limited to 10; That is to say total size under be limited to 1 or greater than 1 the beginning; Slowly become big again, be limited to 10 or finish more than last, as 1 to 1.7, or 3.2 to 8.1, or 5.5 to 10 less than 10.

Be the schematic perspective view of the submersible pump 1 that designs according to the utility model and among Fig. 1 and Fig. 2, a pump outer cover 4 has been installed on the front side end 2 of jacket tube 3 according to the sectional view of the submersible pump 1 that the utility model designed.

Installed in its external sleeve 4 with the concentric tubulose of the axis of submersible pump 15 in overlap 6, its outer diameter is 7, less than the inner diameter 8 of overcoat 3.Like this, have gap space 9 between its external sleeve 3 and the interior cover 6, correspondingly spacing 10 has just formed the flow cross section as transmission medium.

Interior cover 6 location with respect to overcoat 3; Be on the periphery 12 of the pump outer cover 4 through overcoat 3 center annex 11 (Zentrieransatz) and pump outer cover 4 interior all 14 on the annex 13 that centers realize; Wherein annular solid 15 is installed between interior cover 6 and the pump outer cover 4; In the interior cover 6 a cylindric projecting part 16 is arranged, link to each other with interior cover 6 through these parts.

The electric power motor 17 that has stator and rotor has been installed in sealing in the interior cover 6.The motor drive shaft 19 of drive motor 17 passes annular solid 15 entering holes 20.Motor drive shaft 19 is projection in the formed annular space 22 in pump outer cover 4, has fixed a pump impeller 23 on its axle head 21.

A bearing pack 23 has been installed in the hole 20 of ring part 15,, has been used to settle motor drive shaft 19 like radial ball bearing or spheric roller bearing 24.To the spacing of bearing pack 23; Direction along pump outer cover 4 has been installed a Sealing 25 in the hole 20 of ring part 15; In the embodiment that is shown was given an example, it was by forming through inclined-plane seal ring 26 (Lippendichtring) and the bearing ring seal spare 27 (Gleitringdichtsatz) upward axial and inclined-plane seal ring interval that is in close proximity to bearing pack 23 installations.The Sealing 25 that is formed by inclined-plane seal ring 26 and bearing ring seal spare 27 guarantees the motor drive shaft sealing of drive motor 17 under pressure.

Spacing between inclined-plane seal ring 26 and the bearing ring seal spare 27 has just formed the annular space 28 around motor drive shaft 19, and it can be used for contingent leakage.The leakage that produces in order to derive under the pressure, the pipeline 30 in the gap space 9 is led in the hole 29 of radially crossing ring part 15, and the contingent leakage that penetrates bearing ring seal spare 27 is arranged to the external world.The mode of dredging like this prevents in interior cover 6, to occur liquid and leaks, thereby avoids drive motor 17 to be affected.

Preferably, the pump outer cover 4 that is installed on overcoat 3 edges 2 is to be processed by the die castings or the cast of metal or plastics, and locatees through the annex that centers on the front 31 of ring part 15, fixes like socket head screw through fixed block 32.

The pump unit of being made up of impeller 23 and pump outer cover 4 33 is runoff devices; Wherein, The medium that transmits along pump impeller 23 axially, the direction suction and pumping of pressing arrow 36 through the inflow entrance 34 of annular space 22; Inflow entrance 34 is that (closed loop Abschlussring) forms through partly hiding rim 35.Rim 35 is fixed on the pump outer cover 4, and has covered the mounting hole 37 of pump impeller 23, and it so just can be fixed on the axle head 21 greater than the outer diameter 38 of pump impeller 23, perhaps is fixed on the bottom of submersible pump.

In between cover 6 and the overcoat 3 top of submersible pump 1 form a gap space 9, in the flow road 39 that is used for transmission medium of the radial direction of pump impeller 23, form pump outer cover 4 along the direction of gap space 9.

During submersible pump 1 work; Inflow entrance 34 through pump impeller 23 is axially by the medium of suction and pumping, by radially the direction along flow road 39 (like arrow 41) transmits from pump impeller 23, and continues in gap space 9, to transmit; Form cooling liquid therefrom, be used to distribute the motor heat.

Prolong overcoat 3 along the supporting surface direction of submersible pump 1, the prolongation of pump outer cover 4 its external sleeve 3 forms flow wheel rim 43 annular, exceed height 42 than rim 35.

The outer circumferential face 44 of flow wheel rim 43 forms the truncated cone side with circular chamfering, and circular chamfer surface has so just been optimized the path of liquid inflow pump impeller 23 to supporting surface.

In addition, also disposed some supporting members 45 on the pump outer cover 4, they are along the direction projecting height 46 of supporting surface, greater than the height 42 of flow wheel rim 43.Gap between the height 46 of supporting member 45 and the height 42 of flow wheel rim 43 has just formed inflow entrance slit 47, and during submersible pump 1 work, it is exactly the liquid level that residual liquid level can drop to.

Preferably, the gap between the height 42 of the height 46 of supporting member 45 and flow wheel rim 43 is between 8 to 20 millimeters.

In pump unit 33, around overcoat 3 installed a ring-type, preferably have a filter 48 on chassis 49.The outer diameter 50 of filter 48 so just provides bigger flow cross section for medium greater than the outer diameter 51 of overcoat 3.

The support 52 of filter 48 can axial adjustment filter 48 (along four-headed arrow 53) on the overcoat 3.So just can regulate the height 54 in inflow entrance slit 47, as shown in Figure 2, minimum constructive height is placed on supporting member 45 on the chassis 49 of filter 48, can also regulate bigger slit height as required.

We can also draw from Fig. 1, and submersible pump 1 can be made compact portable complete sets of equipment, 55 preferably has two handles 56 that link to each other with overcoat 3 at an upper portion thereof.In addition, 55 have fixed a pipe joint 57 that is communicated with gap space 9 fluids on top, and it has one and combines flange 58, is used for connecting the pipeline that does not draw, and discharges the medium that aspirates out.

According to the embodiment that is shown for example, have a Bajonett formula connection set 59, be used as hose coupling connection set and hose connection device on the fire-protection equipment in conjunction with flange 58.

Among Fig. 1, the top 55 of submersible pump 1 also has another drain opening 60, formed leakage in the bearing that does not draw in the drawings that we introduced before can discharging and the annular space of seal arrangement.

Also there is other embodiment of submersible pump in above-mentioned embodiment; What this will remind especially be; The various same scheme of the embodiment that the utility model is not confined to be shown, and be more prone to each scheme of embodiment is made up; Those of ordinary skill in the art can also be with reference to the utility model, and obtaining more maybe modification.The flexible program that the embodiment that some can reference is also arranged here, the details in the embodiment that is shown before can making up.

For the better diving pump structure that shows, the parts that shown among the above-mentioned figure do not zoom in or out fully in proportion.

Under the enlightenment that above the utility model is described, the solution of original creation that fully can accomplished the utility model purpose.

The embodiment that is shown among Fig. 1 and Fig. 2 is exactly the solution of the original creation that designs according to the utility model.Detailed description to figure has been introduced related task and the solution of the utility model.

List of numerals

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1 submersible pump, 22 annular spaces

2 ends, 23 pump impeller

3 overcoats, 24 radial sphericals or spheric roller bearing

4 pump outer covers, 25 associated sealing arrangement for bearings

5 axis, 26 inclined-plane seal rings

Cover 27 bearing ring seal spares in 6

7 outer diameters, 28 annular spaces

8 inner diameters, 29 holes

9 gap spaces, 30 pipelines

10 spacings, 31 fronts

11 annex 32 fixed blocks that center

12 peripheries, 33 pump unit

13 annex 34 inflow entrances that center

All 35 rims in 14

15 ring parts, 36 arrows

16 cylindric projecting part 37 mounting holes

17 drive motors, 38 outer diameters

18 39 flow roads

19 motor drive shafts, 40 arrows

20 holes, 41 arrows

21 axle heads, 42 height

43 flow wheel rims

44 outer circumferential faces

45 supporting members

46 height

47 entrance slits

48 filter

49 base plates

50 outer diameters

51 outer diameters

52 supports

53 arrows

54 height

55 tops

56 handles

57 pipe joints

58 flange connectors

59 connection sets

60 exhaust ports

Claims

1. submersible pump, it has:

The pressure-tight interior cover (6) of one tubulose;

One is arranged on the drive motor (17) of the pump unit (33) in the interior cover;

One overcoat (3) with cover (6) in spacing (10) encirclement;

One is arranged on the pump outer cover (4) of the front side end (2) of overcoat (3);

One pump impeller (23) that is arranged in the annular space (22) of pump outer cover (4) and is rotationally connected with the motor drive shaft (19) of drive motor (17);

One is arranged on the front side end of interior cover (6) and the ring part (15) between the pump outer cover (4), and it is passed by motor drive shaft (19), and is furnished with the associated sealing arrangement for bearings (25) of motor drive shaft (19); And

One in the scope of pump outer cover (4), distance and the filter (48) of surrounding said overcoat (3) at certain intervals;

Wherein, said pump outer cover (4) is provided with the flow wheel rim (43) of a ring-type, and its supporting surface direction along said submersible pump (1) protrudes in the front side end (2) of said overcoat (3).

2. submersible pump as claimed in claim 1 (1), wherein, the outer circumferential face (44) of said flow wheel rim (43) is set to the truncated cone side.

3. according to claim 1 or claim 2 submersible pump (1), wherein, its periphery of said pump outer cover (4) is provided with supporting member (45), and these supporting members are outwards outstanding towards the direction of supporting surface.

4. according to claim 1 or claim 2 submersible pump (1), wherein, the height (42) of said flow wheel rim (43) is less than the height (46) of said supporting member (45).

5. submersible pump as claimed in claim 4 (1), wherein, said flow wheel rim (43) height (42) and said supporting member (45) the gap of height (46) be 8-20mm.

6. submersible pump as claimed in claim 1 (1), wherein, described pump outer cover (4) has ring part (15), and locatees through the annex that centers on this ring part positive (31), makes it concentric with axis (5).

7. submersible pump as claimed in claim 1 (1), wherein, described annular space (22) is towards the direction and rim (35) adjacency of supporting surface, and this rim (35) is fixed on said pump outer cover (4), and has inflow entrance (34).

8. submersible pump as claimed in claim 1 (1), wherein, described filter (48) is fixed on along the total height direction adjustable ground of said submersible pump (1) and puts outside said, and is equipped with the base plate (49) that can form supporting surface.

9. submersible pump as claimed in claim 1 (1), wherein, the seal arrangement (25) of said motor drive shaft (19) is to form through the inclined-plane seal ring (26) that the hole (20) in ring part (1) is provided with.

10. submersible pump as claimed in claim 9 (1) wherein, also is provided with in the axial direction and said inclined-plane seal ring (26) bearing ring seal spare (27) at interval.

11. submersible pump as claimed in claim 10 (1) wherein, is provided with the ring part (15) that is used for leakage between described inclined-plane seal ring (26) and bearing ring seal spare (27).