CN102678535A - Sand-preventive sealing device of submersible electric pump - Google Patents
Sand-preventive sealing device of submersible electric pump Download PDFInfo
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- CN102678535A CN102678535A CN2012101263749A CN201210126374A CN102678535A CN 102678535 A CN102678535 A CN 102678535A CN 2012101263749 A CN2012101263749 A CN 2012101263749A CN 201210126374 A CN201210126374 A CN 201210126374A CN 102678535 A CN102678535 A CN 102678535A
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- sand
- spiral
- motor
- adpting flange
- ring
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Abstract
The invention discloses a sand-preventive sealing device of a submersible electric pump, and relates to the field of sand-preventive sealing devices for sealing motor sealing cavities of submersible electric pumps. The sand-preventive sealing device is characterized in that a spiral sand throwing ring (2) is sleeved on a motor rotor shaft (9), a mechanical seal (3) is sleeved on the motor rotor shaft (9) by a shaft sleeve, a rubber pad (6) is arranged between a connecting flange (14) and a bearing block (7), a sand discharge ring (4) is connected onto the connecting flange (14), the connecting flange (14), the bearing block (7) and a motor shell (11) are penetratingly assembled together by connecting screws (12), a bearing is penetratingly mounted on the shaft sleeve of the motor rotor shaft (9), and a motor winding is disposed in a motor sealing cavity (10) of the motor shell (11). By the aid of the sand-preventive sealing device of the submersible electric pump, safety running of the mechanical seal, the motor rotor shaft and the bearing is effectively guaranteed, and the service life of the submersible electric pump is prolonged.
Description
Technical field
A kind of Submerged Motor Pumps sand control of the present invention seal arrangement relates to the sand control seal arrangement field that the sand aqueous medium seals that contains in the motor seal chamber that possibly enter into Submerged Motor Pumps.
Background technique
When Submerged Motor Pumps is used under the big aqueous medium occasion of silt content; As be used for occasions such as development end draining, new well well-flushing, bittern Submerged Motor Pumps, then the silt particle in the aqueous medium is easy to enter between rotor axis of electric and the mechanical seal, makes the quick wearing and tearing that produce between rotor axis of electric and mechanical seal and silt particle and causes early stage damage; Thereby because after the mechanical seal short term failure; Bearing wear was lost efficacy, and the motor windings in the Seal cage of then electric chamber can be burnt, therefore; Prevent that silt particle in the aqueous medium from entering into the wearing and tearing that mechanical seal and rotor axis of electric are caused, and causes the Submerged Motor Pumps seal failure just to cause the problem for must solving.
Summary of the invention
The purpose of this invention is to provide a kind of Submerged Motor Pumps sand control seal arrangement; Through on rotor axis of electric, adding the spiral sand-throwing ring, and on the spiral sand-throwing ring, be designed with and get rid of the sand blade, the silt particle in the aqueous medium that gets into Submerged Motor Pumps is outwards thrown away; So that reach the purpose that protection mechanical seal and rotor axis of electric are not worn; Thereby the motor seal chamber is well sealed, and make the unlikely wearing and tearing of bearing and early failue, reach the purpose that the protection motor runs well.
A kind of Submerged Motor Pumps sand control seal arrangement; By spiral sand-throwing ring, mechanical seal, sediment outflow circle, get rid of sand blade, rubber pad, bearing support, bearing, rotor axis of electric, motor seal chamber, motor housing, attachment screw, attachment screw seal ring and adpting flange and form; The spiral sand-throwing ring is sleeved on the rotor axis of electric through key; Mechanical seal is sleeved on the rotor axis of electric through axle sleeve, and mechanical seal and be positioned at the mechanical seal installation cavity and bearing support seam one side of spiral sand-throwing ring has clamped rubber pad between adpting flange and bearing support; On the adpting flange inner ring, be connected with the sediment outflow circle; Attachment screw installs adpting flange, bearing support and motor housing and links together, and on attachment screw, is set with the attachment screw seal ring, and the bearing of in bearing support, installing is installed on the axle sleeve outside the rotor axis of electric; In the motor seal chamber in motor housing motor windings is arranged; The adpting flange pump housing bolt that in the adpting flange pump housing bolt hole of adpting flange, installs links into an integrated entity the adpting flange and the pump housing.
The structure design principle of a kind of Submerged Motor Pumps sand control of the present invention seal arrangement is explained as follows:
The spiral sand-throwing ring that in the past on rotor axis of electric, did not install additional among the present invention to be designed; Therefore; Silt particle in the aqueous medium and mechanical seal, rotor axis of electric can rub, and it is bad to cause mechanical seal and rotor axis of electric to be worn, thereby the bearing on the rotor axis of electric is worn; Make its early failue, cause Submerged Motor Pumps to damage.
The present invention adds the spiral sand-throwing ring of particular design on rotor axis of electric; And on the inner ring of spiral sand-throwing ring, be connected with a pair of sand blade that gets rid of at least; Through getting rid of the sand blade silt particle in the aqueous medium is outwards got rid of; Make unlikely damage mechanical seal of silt particle and rotor axis of electric, to guarantee the safe handling of Submerged Motor Pumps.
Concrete structure DESIGNED FEATURE of the present invention is explained as follows:
On the outer circle of spiral sand-throwing ring main body, be designed with the spiral chute in order to sediment outflow of some indents; The spiral chute of these indents can be double end pitch; Also can be single head pitch; And the spiral chute on the outer circle of spiral sand-throwing ring has certain axially cylindrical tapering, and promptly the external diameter that gets rid of sand blade inboard of spiral sand-throwing ring is greater than the external diameter in the spiral sand-throwing ring outside, and the said structure design is beneficial to sediment outflow.
Get rid of the sand blade all-in-one-piece that is connected with the spiral sand-throwing ring and be connected inclined angle alpha≤90 °.
In the spiral sand-throwing ring, have the pump shaft mounting hole, be connected on the rotor axis of electric for the spiral sand-throwing ring is installed.
In the spiral sand-throwing ring, have the mechanical seal installation cavity, for mechanical seal is installed.
On the inner ring of adpting flange, be connected with a circle sediment outflow circle, and between the spiral chute outside of sediment outflow circle and spiral sand-throwing ring certain radial clearance δ arranged
1
Between adpting flange and bearing support, clamped rubber pad, bearing support produce has been impacted and wearing and tearing, at rubber pad with get rid of certain axial clearance δ is arranged between the sand blade to prevent silt particle
2, be beneficial to effluent sand.
A kind of Submerged Motor Pumps sand control of the present invention seal arrangement can protect mechanical seal and rotor axis of electric to run well effectively; And do not make it by sand wear; Thereby protected the safe operation of bearing, made whole Submerged Motor Pumps prolong working life owing to having installed this sand control seal arrangement additional.
Description of drawings
Fig. 1: a kind of Submerged Motor Pumps sand control seal arrangement partial schematic sectional view.
Fig. 2: for adding the broken section structural representation of the spiral sand-throwing ring 2 that gets rid of sand blade 5.
Fig. 3: for looking schematic representation in a left side that adds the spiral sand-throwing ring 2 that gets rid of sand blade 5.
Embodiment
Referring to Fig. 1; A kind of Submerged Motor Pumps sand control seal arrangement; By spiral sand-throwing ring 2, mechanical seal 3, sediment outflow circle 4, get rid of sand blade 5, rubber pad 6, bearing support 7, bearing 8, rotor axis of electric 9, motor seal chamber 10, motor housing 11, attachment screw 12, attachment screw seal ring 13 and adpting flange 14 and form; Spiral sand-throwing ring 2 is sleeved on the rotor axis of electric 9 through key; Mechanical seal 3 is sleeved on the rotor axis of electric 9 through axle sleeve, and mechanical seal 3 and be positioned at the mechanical seal installation cavity 15 and bearing support 7 seams one side of spiral sand-throwing ring 2 has clamped rubber pad 6 between adpting flange 14 and bearing support 7; On adpting flange 14 inner rings, be connected with sediment outflow circle 4; Attachment screw 12 installs adpting flange 14, bearing support 7 and motor housing 11 and links together, and on attachment screw 14, is set with attachment screw seal ring 13, and the bearing of in bearing support 7, installing 8 is installed on the axle sleeve outside the rotor axis of electric 9; In the motor seal chamber 10 in motor housing 11 motor windings is arranged; The adpting flange pump housing bolt that in the adpting flange pump housing bolt hole 1 of adpting flange 14, installs links into an integrated entity the adpting flange 14 and the pump housing.
Referring to Fig. 2 and Fig. 3; On spiral sand-throwing ring 2 end faces, be connected with a pair of (two) at least and get rid of sand blade 5; Be connected with how right 5 in the sand blade that gets rid of and be uniformly distributed with and be connected symmetrically on spiral sand-throwing ring 2 end faces, get rid of sand blade 5 all-in-one-piece that is connected with spiral sand-throwing ring 2 and be connected inclined angle alpha≤90 °.
The spiral chute 17 that some indents are arranged on the outer circle of spiral sand-throwing ring 2 main bodys; Spiral chute 17 is double end pitch or single head pitch; Spiral chute 17 on the spiral sand-throwing ring 2 outer circles axially has certain cylindrical tapering; The external diameter that gets rid of sand blade 5 inboard places that promptly links to each other with spiral sand-throwing ring 2 is greater than the external diameter in spiral sand-throwing ring 2 outsides, shown in tapering symbol among Fig. 2.
In spiral sand-throwing ring 2, have the pump shaft mounting hole 16 of through hole, be connected on the rotor axis of electric 9 for spiral sand-throwing ring 2 is installed.
In the mechanical seal installation cavity 15 of the circular indent that in spiral sand-throwing ring 2, has mechanical seal 3 is installed.
As shown in Figure 1, the radial clearance δ between spiral chute 17 outsides of sediment outflow circle 4 that the inner ring with adpting flange 14 is connected and spiral sand-throwing ring 2
1=1 millimeter～10 millimeters.
Rubber pad 6 and get rid of the axial clearance δ between the sand blade 5
2=1 millimeter～10 millimeters.
Claims (6)
1. Submerged Motor Pumps sand control seal arrangement; By spiral sand-throwing ring (2), mechanical seal (3), sediment outflow circle (4), get rid of sand blade (5), rubber pad (6), bearing support (7), bearing (8), rotor axis of electric (9), motor seal chamber (10), motor housing (11), attachment screw (12), attachment screw seal ring (13) and adpting flange (14) and form; It is characterized in that spiral sand-throwing ring (2) is sleeved on the rotor axis of electric (9) through key; Mechanical seal (3) is sleeved on the rotor axis of electric (9) through axle sleeve; Mechanical seal (3) and be positioned at the mechanical seal installation cavity (15) and bearing support (7) seam one side of spiral sand-throwing ring (2); Between adpting flange (14) and bearing support (7), clamped rubber pad (6); On adpting flange (14) inner ring, be connected with sediment outflow circle (4); Attachment screw (12) installs adpting flange (14), bearing support (7) and motor housing (11) and links together, and on attachment screw (14), is set with attachment screw seal ring (13), and the bearing of in bearing support (7), installing (8) is installed on the axle sleeve outside the rotor axis of electric (9); In the motor seal chamber (10) in motor housing (11) motor windings is arranged; The adpting flange pump housing bolt that in the adpting flange pump housing bolt hole (1) of adpting flange (14), installs links into an integrated entity the adpting flange (14) and the pump housing.
2. a kind of Submerged Motor Pumps sand control seal arrangement according to claim 1; It is characterized in that on spiral sand-throwing ring (2) end face, being connected with at least a pair of (two) and get rid of sand blade (5); Be connected with the how right sand blade (5) that gets rid of and then be uniformly distributed with and be connected symmetrically on spiral sand-throwing ring (2) end face, get rid of sand blade (5) all-in-one-piece that is connected with spiral sand-throwing ring (2) and be connected inclined angle alpha≤90 °.
3. a kind of Submerged Motor Pumps sand control seal arrangement according to claim 1; It is characterized in that on the outer circle of spiral sand-throwing ring (2) main body, having the spiral chute (17) of some indents; Spiral chute (17) is double end pitch or single head pitch, and the spiral chute (17) on the outer circle of spiral sand-throwing ring (2) axially has certain cylindrical tapering.
4. a kind of Submerged Motor Pumps sand control seal arrangement according to claim 1 is characterized in that in spiral sand-throwing ring (2), having the pump shaft mounting hole (16) of through hole and the mechanical seal installation cavity (15) of circular indent.
5. a kind of Submerged Motor Pumps sand control seal arrangement according to claim 1 is characterized in that the radial clearance δ between spiral chute (17) outside of sediment outflow circle (4) that the inner ring with adpting flange (14) is connected and spiral sand-throwing ring (2)
1=1 millimeter～10 millimeters.
6. a kind of Submerged Motor Pumps sand control seal arrangement according to claim 1 is characterized in that rubber pad (6) and gets rid of the axial clearance δ between the sand blade (5)
2=1 millimeter～10 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210126374.9A CN102678535B (en) | 2012-04-23 | 2012-04-23 | Sand-preventive sealing device of submersible electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210126374.9A CN102678535B (en) | 2012-04-23 | 2012-04-23 | Sand-preventive sealing device of submersible electric pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102678535A true CN102678535A (en) | 2012-09-19 |
| CN102678535B CN102678535B (en) | 2017-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210126374.9A Active CN102678535B (en) | 2012-04-23 | 2012-04-23 | Sand-preventive sealing device of submersible electric pump |
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| Country | Link |
|---|---|
| CN (1) | CN102678535B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2462112Y (en) * | 2001-01-09 | 2001-11-28 | 王志新 | Anti-sand sealing device of submersible pump |
| WO2003058098A1 (en) * | 2002-01-14 | 2003-07-17 | Aes Engineering Ltd | An expeller device |
| CN2577014Y (en) * | 2002-11-11 | 2003-10-01 | 韩忠良 | Sand-preventing, pressure-reducing sealing device for submerged pump |
| CN201696282U (en) * | 2010-05-27 | 2011-01-05 | 宁波伏尔肯机械密封件制造有限公司 | Sealing device |
| CN202545334U (en) * | 2012-04-23 | 2012-11-21 | 泰州泰丰泵业有限公司 | Sand prevention sealing device for electric diving pump |
-
2012
- 2012-04-23 CN CN201210126374.9A patent/CN102678535B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2462112Y (en) * | 2001-01-09 | 2001-11-28 | 王志新 | Anti-sand sealing device of submersible pump |
| WO2003058098A1 (en) * | 2002-01-14 | 2003-07-17 | Aes Engineering Ltd | An expeller device |
| CN2577014Y (en) * | 2002-11-11 | 2003-10-01 | 韩忠良 | Sand-preventing, pressure-reducing sealing device for submerged pump |
| CN201696282U (en) * | 2010-05-27 | 2011-01-05 | 宁波伏尔肯机械密封件制造有限公司 | Sealing device |
| CN202545334U (en) * | 2012-04-23 | 2012-11-21 | 泰州泰丰泵业有限公司 | Sand prevention sealing device for electric diving pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102678535B (en) | 2017-02-08 |
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Address after: 225300 No. 46, Haiyang Road, Hailing District, Jiangsu, Taizhou Patentee after: Jiangsu Taifeng Pump Co Ltd Address before: 225300 No. 46, Haiyang Road, Hailing District, Jiangsu, Taizhou Patentee before: Taizhou Taifeng Pump Industry Co., Ltd. |
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