CN202560176U - Screw pump direct driving device with leaking liquid overflow system - Google Patents
Screw pump direct driving device with leaking liquid overflow system Download PDFInfo
- Publication number
- CN202560176U CN202560176U CN2012202148989U CN201220214898U CN202560176U CN 202560176 U CN202560176 U CN 202560176U CN 2012202148989 U CN2012202148989 U CN 2012202148989U CN 201220214898 U CN201220214898 U CN 201220214898U CN 202560176 U CN202560176 U CN 202560176U
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- overflow
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- motor
- inner chamber
- rotor hollow
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Abstract
The utility model relates to a screw pump direct driving device, in particular to a screw pump direct driving device with a leaking liquid overflow system. The device aims to solve the problem that a thrust bearing of an existing screw pump direct driving device works in underground liquid with impurities and causes damage to the thrust bearing, the underground liquid enters a motor and causes motor insulation to be damaged, and the motor is burned up. A partition board is arranged in a third cavity of the screw pump direct driving device, a seal ring is sleeved on the outer side wall at the lower portion of a liner tube in a shaft, a first overflow channel is arranged on the outer side wall at the lower portion of a rotor hollow mandrel and communicates the third inner cavity and a first inner cavity, a second overflow channel is arranged on the outer side wall of an oil tank and is connected with an overflow outlet bend, and the leaking liquid overflow system is formed by the third inner cavity, the first overflow channel, the first inner cavity, the second overflow channel and the overflow outlet bend. The screw pump direct driving device with the leaking liquid overflow system is used in the field of oil utilization.
Description
Technical field
The utility model relates to a kind of screw pump direct driving device, is specifically related to a kind of screw pump direct driving device with the effusion overflow system.
Background technology
The screw pump direct driving device is a kind of oil field extracting device of oil of rise in recent years, it have energy-conservation, save material, save and take up an area of, reduce the workload of safeguarding and transferring ginseng, mainly be to compare with other mechanical equipment, reduced casualty accident, receive the welcome in oil field deeply.
The screw pump direct driving device has three chambers, and first chamber is made up of mechanical sealing static ring, square clamp locking cap, packing, sucker rod; Second chamber is made up of axle internal lining pipe, rotor hollow shaft, mechanical sealing linkage ring; The 3rd chamber is made up of axle internal lining pipe, rotor hollow shaft, connection fuel tank, bottom end bearing enclosing cover, motor bottom end cover.First chamber is identical with the axle internal lining pipe; Be full of down-hole liquid during the first chamber normal condition; And consistent with fuel transfer system pressure, under second chamber and the 3rd chamber normal condition, because the effect of mechanical seal does not have down-hole liquid to get into; But they communicate through the slit of thrust bearing, so second chamber and the 3rd chamber such as have at the lubrication oil of liquid level.When mechanical seal damaged, the down-hole liquid of first chamber got into the 3rd chamber through second chamber, because lubrication oil is littler than down-hole liquid proportion; Down-hole liquid squeezes the thrust bearing chamber to lubrication oil; Thrust bearing is worked in the down-hole liquid of impurity is arranged, cause thrust bearing to damage, along with the increase of down-hole liquid inlet; Under the effect of pressure; Down-hole liquid gets in the motor through the fit clearance of bottom end bearing outer end cap and bottom end cover, rotor hollow shaft, makes electrical machine insulation destruction, and causes motor is burnt.
The utility model content
The utility model is worked in the down-hole liquid of impurity is arranged for the thrust bearing that solves existing screw pump direct driving device and is caused thrust bearing to damage; Down-hole liquid gets in the motor; Cause electrical machine insulation to be destroyed; The problem of burn-down of electric motor, and then a kind of screw pump direct driving device with the effusion overflow system is proposed.
The utility model is to address the above problem the technical scheme of taking to be: the utility model comprises sucker rod, motor upper cover, motor case, motor bottom end cover, electric machine stator iron, rotor, connection fuel tank, axle internal lining pipe, rotor hollow shaft, square clamp locking cap, packing, mechanical dynamic seal ring, mechanical stationary seal ring and overflow exit bend; Electric machine stator iron is pressed in the motor case; The upper end of motor case is connected with motor upper cover; The lower end of motor case is connected with the motor bottom end cover, and rotor is sleeved on the middle part of rotor hollow shaft, and the lower end of rotor hollow shaft is passed electric machine stator iron and motor bottom end cover from top to bottom successively; The middle part of motor upper cover is passed in the upper end of rotor hollow shaft; Connect fuel tank and is connected with the motor bottom end cover, an axle internal lining pipe is inserted in the rotor hollow shaft, and the lower end of an internal lining pipe be connected the fuel tank connection; The lower end of sucker rod is the side's of passing clamp cap, packing, mechanical stationary seal ring, axle internal lining pipe successively from top to bottom; The upper end of rotor hollow shaft is provided with the mechanical dynamic seal ring, and the upper end of axle internal lining pipe is provided with mechanical stationary seal ring, and the mechanical dynamic seal ring is between the lateral wall of the inside wall of rotor hollow shaft and an internal lining pipe; The confined space that the lateral wall of machinery stationary seal ring, the inside wall of square clamp locking cap, mechanical dynamic seal ring form is first chamber; The confined space that the lateral wall of mechanical dynamic seal ring, axle internal lining pipe, the inside wall of rotor hollow shaft form is second chamber, and the inner chamber that connects fuel tank is the 3rd chamber, is provided with dividing plate in the 3rd chamber; Dividing plate is divided into first inner chamber and second inner chamber from top to bottom successively with the 3rd chamber; Sealing ring of suit on the lateral wall of axle internal lining pipe bottom, and sealing ring is between the inside wall of the lateral wall of axle internal lining pipe and rotor hollow shaft, and sealing ring is divided into the 3rd inner chamber and the 4th inner chamber from top to bottom successively with second chamber; Have first overflow ducts on the lateral wall of rotor hollow shaft bottom; First overflow ducts is communicated with the 3rd inner chamber with first inner chamber, have second overflow ducts on the lateral wall of connection fuel tank, and second overflow ducts is communicated with first inner chamber; Second overflow ducts is connected with the overflow exit bend, and the 3rd inner chamber, first overflow ducts, first inner chamber, second overflow ducts, overflow exit bend constitute the effusion overflow system.
The beneficial effect of the utility model is: the utility model has been strengthened the protection to direct driving motor; When the mechanical seal seepage, diffusate is through effusion overflow system bleeder, and the patrolman can in time find; Protected thrust bearing; The utility model is simple in structure, and cost of manufacture is low, can effectively prevent the motor damage.
Description of drawings
Fig. 1 is the overall structure sketch map of the utility model.
The specific embodiment
The specific embodiment one: combine Fig. 1 that this embodiment is described; The said a kind of screw pump direct driving device with the effusion overflow system of this embodiment comprises sucker rod 1, motor upper cover 2, motor case 3, motor bottom end cover 4, electric machine stator iron 5, rotor 6, connects fuel tank 7, axle internal lining pipe 8, rotor hollow shaft 9, square clamp locking cap 10, packing 11, mechanical dynamic seal ring 12, mechanical stationary seal ring 13 and overflow exit bend 22; Electric machine stator iron 5 is pressed in the motor case 3; The upper end of motor case 3 is connected with motor upper cover 2; The lower end of motor case 3 is connected with motor bottom end cover 4, and rotor 6 is sleeved on the middle part of rotor hollow shaft 9, and the lower end of rotor hollow shaft 9 is passed electric machine stator iron 5 and motor bottom end cover 4 from top to bottom successively; The middle part of motor upper cover 2 is passed in the upper end of rotor hollow shaft 9; Connect fuel tank 7 and is connected with motor bottom end cover 4, an axle internal lining pipe 8 is inserted in the rotor hollow shaft 9, and the lower end of an internal lining pipe 8 be connected fuel tank 7 connections; The lower end of sucker rod 1 is the side's of passing clamp cap 10, packing 11, mechanical stationary seal ring 13, axle internal lining pipe 8 successively from top to bottom; The upper end of rotor hollow shaft 9 is provided with mechanical dynamic seal ring 12, and the upper end of axle internal lining pipe 8 is provided with mechanical stationary seal ring 13, and mechanical dynamic seal ring 12 is between the lateral wall of the inside wall of rotor hollow shaft 9 and an internal lining pipe 8; The confined space that the lateral wall of machinery stationary seal ring 13, the inside wall of square clamp locking cap 10, mechanical dynamic seal ring 12 form is first chamber; The confined space that the lateral wall of mechanical dynamic seal ring 12, axle internal lining pipe 8, the inside wall of rotor hollow shaft 9 form is second chamber, and the inner chamber that connects fuel tank 7 is the 3rd chamber, is provided with dividing plate 14 in the 3rd chamber; Dividing plate 14 is divided into first inner chamber 15 and second inner chamber 16 from top to bottom successively with the 3rd chamber; Sealing ring 17 of suit on the lateral wall of axle internal lining pipe 8 bottoms, and sealing ring 17 is between the inside wall of the lateral wall of axle internal lining pipe 8 and rotor hollow shaft 9, and sealing ring 17 is divided into the 3rd inner chamber 18 and the 4th inner chamber 19 from top to bottom successively with second chamber; Have first overflow ducts 20 on the lateral wall of rotor hollow shaft 9 bottoms; First overflow ducts 20 is communicated with the 3rd inner chamber 18 with first inner chamber 15, have second overflow ducts 21 on the lateral wall of connection fuel tank 7, and second overflow ducts 21 is communicated with first inner chamber 15; Second overflow ducts 21 is connected with overflow exit bend 22, and the 3rd inner chamber 18, first overflow ducts 20, first inner chamber 15, second overflow ducts 21, overflow exit bend 22 constitute the effusion overflow systems.
Installing and fixing of this embodiment median septum 14 is to lean on the deadweight of motor to be pressed on four convex edges of dividing plate 14, and dividing plate 14 following seams are pressed on the O RunddichtringO, and the needs of sealing have promptly been satisfied in the deformation of O RunddichtringO, have guaranteed that again dividing plate 14 can play simultaneously.
The specific embodiment two: combine Fig. 1 that this embodiment is described; The said a kind of screw pump direct driving device with the effusion overflow system of this embodiment also comprises two bearings 23, two bearing outer end caps 24 and two bearing internal end cover 25; The top of rotor hollow shaft 9 is respectively bearing outer end cap of suit 24, bearing 23, a bearing internal end cover 25 successively from top to bottom; The bottom of rotor hollow shaft 9 is respectively bearing internal end cover of suit 25, bearing 23, a bearing outer end cap 24 successively from top to bottom, and each bearing outer end cap 24 middle part is provided with first sealing 26 and second from outside to inside successively and seals 27.Other composition and annexation are identical with the specific embodiment one.
Claims (2)
1. screw pump direct driving device with the effusion overflow system; It comprises sucker rod (1), motor upper cover (2), motor case (3), motor bottom end cover (4), electric machine stator iron (5), rotor (6), connects fuel tank (7), axle internal lining pipe (8), rotor hollow shaft (9), square clamp locking cap (10), packing (11), mechanical dynamic seal ring (12), mechanical stationary seal ring (13) and overflow exit bend (22); Electric machine stator iron (5) is pressed in the motor case (3); The upper end of motor case (3) is connected with motor upper cover (2); The lower end of motor case (3) is connected with motor bottom end cover (4); Rotor (6) is sleeved on the middle part of rotor hollow shaft (9); The lower end of rotor hollow shaft (9) is passed electric machine stator iron (5) and motor bottom end cover (4) from top to bottom successively; The middle part of motor upper cover (2) is passed in the upper end of rotor hollow shaft (9); Connect fuel tank (7) and is connected with motor bottom end cover (4), an axle internal lining pipe (8) is inserted in the rotor hollow shaft (9), and the lower end of an internal lining pipe (8) be connected fuel tank (7) connection; The lower end of sucker rod (1) is the side's of passing clamp cap (10), packing (11), mechanical stationary seal ring (13), axle internal lining pipe (8) successively from top to bottom; The upper end of rotor hollow shaft (9) is provided with mechanical dynamic seal ring (12), and the upper end of axle internal lining pipe (8) is provided with mechanical stationary seal ring (13), and between mechanical dynamic seal ring (12) inside wall that is positioned at rotor hollow shaft (9) and the lateral wall of internal lining pipe (8); The confined space that the lateral wall of machinery stationary seal ring (13), the inside wall of square clamp locking cap (10), mechanical dynamic seal ring (12) form is first chamber; The confined space that the lateral wall of mechanical dynamic seal ring (12), axle internal lining pipe (8), the inside wall of rotor hollow shaft (9) form is second chamber, and the inner chamber that connects fuel tank (7) is the 3rd chamber, it is characterized in that: be provided with dividing plate (14) in the 3rd chamber; Dividing plate (14) is divided into first inner chamber (15) and second inner chamber (16) from top to bottom successively with the 3rd chamber; A sealing ring of suit (17) on the lateral wall of axle internal lining pipe (8) bottom, and sealing ring (17) is positioned between the inside wall of lateral wall and rotor hollow shaft (9) of an internal lining pipe (8), and sealing ring (17) is divided into the 3rd inner chamber (18) and the 4th inner chamber (19) from top to bottom successively with second chamber; Have first overflow ducts (20) on the lateral wall of rotor hollow shaft (9) bottom; First overflow ducts (20) is communicated with the 3rd inner chamber (18) with first inner chamber (15), have second overflow ducts (21) on the lateral wall of connection fuel tank (7), and second overflow ducts (21) is communicated with first inner chamber (15); Second overflow ducts (21) is connected with overflow exit bend (22), and the 3rd inner chamber (18), first overflow ducts (20), first inner chamber (15), second overflow ducts (21), overflow exit bend (22) constitute the effusion overflow system.
2. according to the said a kind of screw pump direct driving device of claim 1 with the effusion overflow system; It is characterized in that: said a kind of screw pump direct driving device with the effusion overflow system also comprises two bearings (23), two bearing outer end caps (24) and two bearing internal end cover (25); The top of rotor hollow shaft (9) is distinguished a bearing outer end cap of suit (24), a bearing (23), a bearing internal end cover (25) successively from top to bottom; The bottom of rotor hollow shaft (9) is distinguished a bearing internal end cover of suit (25), a bearing (23), a bearing outer end cap (24) successively from top to bottom, and each bearing outer end cap (24) middle part is provided with first sealing (26) and second sealing (27) from outside to inside successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202148989U CN202560176U (en) | 2012-05-14 | 2012-05-14 | Screw pump direct driving device with leaking liquid overflow system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202148989U CN202560176U (en) | 2012-05-14 | 2012-05-14 | Screw pump direct driving device with leaking liquid overflow system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560176U true CN202560176U (en) | 2012-11-28 |
Family
ID=47209841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202148989U Expired - Fee Related CN202560176U (en) | 2012-05-14 | 2012-05-14 | Screw pump direct driving device with leaking liquid overflow system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202560176U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855895A (en) * | 2014-03-11 | 2014-06-11 | 浙江德清西传电气科技有限公司 | Explosion-proof permanent magnet synchronous motor for screw pump |
| CN104124812A (en) * | 2014-08-21 | 2014-10-29 | 杭州云博科技有限公司 | Leakproof collector ring |
| CN107863846A (en) * | 2017-11-17 | 2018-03-30 | 浙江奥耐德电气科技有限公司 | The preceding rearmounted deceleration variable frequency motor of output |
| CN109072904A (en) * | 2016-04-28 | 2018-12-21 | Bsh家用电器有限公司 | Eccentrie helical totorpump |
-
2012
- 2012-05-14 CN CN2012202148989U patent/CN202560176U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855895A (en) * | 2014-03-11 | 2014-06-11 | 浙江德清西传电气科技有限公司 | Explosion-proof permanent magnet synchronous motor for screw pump |
| CN104124812A (en) * | 2014-08-21 | 2014-10-29 | 杭州云博科技有限公司 | Leakproof collector ring |
| CN109072904A (en) * | 2016-04-28 | 2018-12-21 | Bsh家用电器有限公司 | Eccentrie helical totorpump |
| CN109072904B (en) * | 2016-04-28 | 2020-01-10 | Bsh家用电器有限公司 | Eccentric screw pump |
| CN107863846A (en) * | 2017-11-17 | 2018-03-30 | 浙江奥耐德电气科技有限公司 | The preceding rearmounted deceleration variable frequency motor of output |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20170514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |