CN205841240U - There is latent oil directly-driven screw pump and the extracting device of oil thereof of hollow structure - Google Patents
There is latent oil directly-driven screw pump and the extracting device of oil thereof of hollow structure Download PDFInfo
- Publication number
- CN205841240U CN205841240U CN201620609213.9U CN201620609213U CN205841240U CN 205841240 U CN205841240 U CN 205841240U CN 201620609213 U CN201620609213 U CN 201620609213U CN 205841240 U CN205841240 U CN 205841240U
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- Prior art keywords
- screw pump
- hollow structure
- driven screw
- oil directly
- latent oil
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- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 239000003129 oil well Substances 0.000 claims description 6
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- 230000001012 protector Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims 1
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 description 7
- 230000001360 synchronised effect Effects 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
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- 230000008569 process Effects 0.000 description 2
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- 229910052731 fluorine Inorganic materials 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a kind of latent oil directly-driven screw pump with hollow structure and extracting device of oil thereof, including the driving motor being vertically arranged and screw pump, using soft axle transmission to be connected between described driving motor and described screw pump, described driving motor includes shell body and the some single-unit motors being arranged in described shell body；The main shaft of each described single-unit motor is hollow structure, docks with tenon form between the rotor of adjacent two described single-unit motors, and two ends are fixedly connected to form entirety by coaxial connector.This utility model decreases weapon procurement cost and improves again the work efficiency adopting oil pumping simultaneously.
Description
Technical field
This utility model relates to oil machinery technical field of oil extraction equipment, is specifically related to a kind of latent oil with hollow structure
Directly-driven screw pump and extracting device of oil thereof.
Background technology
Latent oil directly-driven screw pump is a kind of novel oil production equipment, is a kind of well being highly suitable for horizontal well, drift log
Lower fluid lifts system, belongs to rodless pump system.This equipment has the following characteristics that 1 compared with other oil production equipment, can use
In the oil well that thickness well and silt content are bigger, the exploitation for stripper provides possibility；2, efficiency is high, though high to solid concentration
Viscous fluid also have the highest production efficiency；3, rodless pump system eliminates pipe, bar frictional dissipation；4, there is no packing box, keep away
Exempt from ground leakage of oil；5, moment of torsion is high, it is possible to meet the needs of the bigger oil well of deep oil well, thickness well and silt content；6, Ke Yitong
Cross motor reversal and carry out backwash.Owing to electric submersible pump has protruded above advantage, and a large amount of oil well is through long-term exploitation
Entering the oil-poor phase, electric submersible pump rapidly be popularization should be had.But there is a shortcoming the biggest in electric submersible pump, i.e. dives due to electricity
The mechanism of pump own is limited, and the working speed of its rotor itself is the lowest, typically between 100rpm～300rpm, and current and screw rod
The supporting general-purpose machine rotating speed of pump is the highest, typically between 1000rpm～3000rpm, and the therefore commonly used electricity of electric submersible pump at present
Motivation adds protector acceleration and deceleration machine and adds screw pump mode, and the high rotating speed of motor, little moment of torsion are become screw pump rotor need by reductor
The slow-speed of revolution wanted, high pulling torque.In such an embodiment, owing to the speed reducing ratio of residing limited space and reductor is relatively big, reductor
It is sufficiently high that intensity is difficult to manufacture and design, and reductor anti-twisting property is poor, and service life is the shortest, and service life is the most several
Month, have a strong impact on normal production operation, add maintenance cost of use.Additionally in recovery process by the well liquid of extraction with
Pipe leakage and reduce extraction efficiency.Further increase cost for oil production.
Utility model content
The purpose of this utility model is to overcome the defect of prior art, it is provided that one had both decreased weapon procurement cost,
Adopt the latent oil directly-driven screw pump of pumping efficiency in improve again well simultaneously.
This utility model solves above-mentioned technical problem by following technical proposals:
A kind of latent oil directly-driven screw pump with hollow structure, including the driving motor being vertically arranged and screw pump, institute
Stating and use flexible shaft transmission to be connected between driving motor and described screw pump, described driving motor includes shell body and is arranged at
Some single-unit motors in described shell body；The main shaft of each described single-unit motor is hollow structure, adjacent two described lists
Docking with tenon form between the rotor of joint motor, two ends are fixedly connected to form entirety by coaxial connector.
As preferably, described adjacent two rotor hollow upper end are blind mortise, and lower end is tenon, middle processing pore-forming
Road.
As preferably, described tenon external diameter being provided with multiple tracks O RunddichtringO, rotation is inserted among blind mortise.
As preferably, being additionally provided with protector between described driving motor and described screw pump, motor protecter is internal main
Axle is also hollow structure, and hollow structure is identical with electric machine main shaft structure, and described protector is outside by ring flange and fastening bolt
It is connected as a single entity with motor housing body.
As preferably, inside described adapter, it is provided with spline and reinforced seal structure.
As preferably, described flexible shaft upper end external diameter has some spout holes.
As preferably, the channel diameter of described quill shaft is less than screw rod pump housing diameter.
As preferably, described screw pump bottom is provided with suction inlet.
As preferably, described at the lower section of suction inlet installation centralizer.
This utility model embodiment also provides for a kind of extracting device of oil, including being arranged at aboveground power supply, also includes above-mentioned
Oil-immersed pump, described latent oil directly-driven screw pump stretches in oil well, and electrically connects with described power supply.This utility model and prior art phase
Ratio has the advantages that
1, after this utility model is applied to direct-drive permanent magnet synchronous motor by hollow rotor structure, screw pump will be in motor
Lower end, the power axially downwards produced during this body running of screw pump can be absorbed by centralizer and be transferred on wall casing carrying, therefore
System can reduce thrust brake, be conducive to increasing the depth of falling well of oil-submerged electric screw pump, and can apply to inclined shaft.
2, hollow rotor structure of the present utility model is applied to latent oil direct-drive permanent magnet synchronous motor and utilizes quill shaft duct defeated
Sending the well liquid of extraction, taking by quill shaft transmission from pumping is the process of a supercharging, the beneficially raising of lift.
3, quill shaft of the present utility model is applied to latent oil direct-drive permanent magnet synchronous motor and makes lube system and screw pump in system
The well liquid isolation of extraction, it is ensured that the insulation against ground of system, safe and reliable, the well liquid simultaneously flowed in quill shaft and lube system
Play preferably heat radiation and lubrication simultaneously.
4, subtract due to system and device after hollow rotor structure of the present utility model is applied to latent oil direct-drive permanent magnet synchronous motor
Few, both decrease weapon procurement cost, decrease again time and the cost of lower well operations.
Accompanying drawing explanation
Fig. 1 is the latent oil directly-driven screw pump structural profile schematic diagram that this utility model has hollow structure；
Fig. 2 is the close-up schematic view at the A of Fig. 1；
Fig. 3 is the close-up schematic view at the B of Fig. 1；
Fig. 4 is the close-up schematic view at the C of Fig. 1；
Fig. 5 is the close-up schematic view at the D of Fig. 1；
Shown in figure: labelling in figure: 1. quill shaft；2. motor protecter；3. drive motor；4. screw pump；5. the company of fixing
Connect device；6. spout hole；7. flexible shaft；8. flexible shaft input；9. suction inlet；10. centralizer.
Detailed description of the invention
In order to make the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with this practicality
Technical scheme in new embodiment carries out clear, complete description, it is clear that described embodiment is portion of the present utility model
Divide embodiment rather than whole embodiment.Based on embodiment of the present utility model, those of ordinary skill in the art are not paying
The every other embodiment obtained on the premise of creative work, broadly falls into protection domain of the present utility model.
As shown in Fig. 1～5, a kind of latent oil directly-driven screw pump with hollow structure, including the driving motor 3 being vertically arranged
And screw pump 4, drive and between motor 3 and screw pump 4, use flexible shaft 7 to be in transmission connection, drive motor 3 to be inputted by flexible shaft
End 8 can order about the rotor of screw pump 4 and rotate, it is possible to achieve drive the bias that concentric rotational transform is screw pump 4 of motor 3 to turn
Dynamic.
This utility model drive motor 3 specifically include shell body and the some single-unit motors being arranged in shell body,
Each single-unit motor is arranged in order the most vertically, and the main shaft of every single-unit motor is hollow structure (being shown in quill shaft 1), adjacent
Docking with tenon form between the rotor of two described single-unit motors, specifically, the structure of quill shaft 1 is to utilize turning of motor
The duct of certain size is changed system in solid position by sub-axle, and it is through whole motor.Stretch out end to end, every section of axle with fovea superior, under
Prominent tenon form coordinates certain size docking, saves in the tenon head outer diameter that motor quill shaft stretches out plus more piece fluorine rubber upper one
Glue O RunddichtringO, loads the recess of next joint motor quill shaft, fitted position ensure to seal and cross smooth logical with duct,
The outside fixing adapter 5 used with two ends reinforced seal of axle connects, and makes rotor coaxial (as Fig. 4 indicates).Pass through
After above-mentioned hollow rotor structure is applied to direct-drive permanent magnet synchronous motor, screw pump 4 will be in driving motor 3 lower end, oil-submersible electric
The power axially downwards produced during this body running of screw pump can be absorbed by centralizer 10 and be transferred on wall casing carrying, therefore system
In can reduce thrust brake, be conducive to increase oil-submerged electric screw pump depth of falling well.The extension of axle is near righting axle
Socket end is smooth axis body, is provided with spline between tenon and smooth axis body, short under upper length, by two sections with backbone sealing ring
Sealing, inside is processed into the fixing adapter 5 of internal spline and is realized the connection between two adjacent single-unit motors and sealing, and shell is with fixed
Position set supports, and makes motor form entirety (as Fig. 4 indicates).
The structure of screw pump 4 described in the utility model includes the sleeve rotor waiting wall thickness and the stator being sheathed on rotor
(not shown), forms the spiral cavity of sealing between rotor and the stator of screw pump 4, when rotor rotates in stator interior
Time, spiral cavity will shift to the other end from one end and produce the effect of pump, and the fluid of suction inlet will be along with spiral cavity
Spiral is shifted to pump discharge end and is discharged, and is transported to ground through oil pipe, and whole process realizes the extraction of thick oil underground well, additionally screw pump
4 use hollows wait wall thickness structure, it is with to drive the Reliability comparotive that coordinates of motor 3 high, and service life is long, reduces to use and ties up
Repair expense, improve capacity utilization, improve oil recovery amount.
As shown in figures 2-3, being additionally provided with motor protecter 2 between described driving motor 3 and described screw pump 4, motor is protected
Protecting device 2 internal spindle also for hollow structure, hollow structure is identical with electric machine main shaft structure, the form i.e. docked by tenon and with
The quill shaft 1 driving motor 3 connects, and motor protecter 2 is outside to be connected with driving motor 3 shell body by ring flange and fastening bolt
It is integrated (as Fig. 3 indicates).Motor protecter 2 upper end is provided by the docking port of band reinforced seal and docks with oil pipe (such as Fig. 2
Indicate).
As it is shown in figure 5, drive motor 3 afterbody to be provided with the adaptor of band reinforced seal, it is ensured that it is close that afterbody axle extending portion is divided
Envelope, and fixing with flexible shaft 7 be connected, flexible shaft 7 is connected with screw pump 4, and flexible shaft 7 upper end external diameter has some spout holes 6,
Drive motor 3 to drive screw pump 4 to work by fixing connection, pressure is built in the extraction of well liquid in screw pump body, then by flexible shaft 7
On spout hole 6 enter into the duct of quill shaft, owing to channel diameter is less than screw rod pump housing diameter, forms secondary and build pressure, by well
Liquid is transported to ground by quill shaft duct oil pipe.Owing to when screw pump 4 works, its eccentric axial force employs downwards quill shaft
After structure, screw pump is positioned at the work of driving motor 3 lower end, therefore, it can reduce thrust brake.Screw pump 4 bottom is provided with suction
Entrance 9, the lower section of described suction inlet 9 is installed centralizer 10, is utilized centralizer 10 to be offloaded on wall casing to axial force.
This utility model embodiment also provides for a kind of extracting device of oil, including be arranged at aboveground power supply (not shown) with
And be arranged at down-hole above-mentioned there is the latent oil directly-driven screw pump of hollow structure, oil-immersed pump electrically connects with power supply.In the present embodiment,
Being applied in extracting device of oil by above-mentioned oil-immersed pump, power supply is electrically connected to the converter of synchronous motor, typically exists, and also sets at power supply
It is equipped with signal processor, the command signal outside signal processor reception and transducing signal, controls converter output after treatment
The frequency of voltage, to meet the job requirement of load, external demand signal is the instructions such as the operation of operator, stopping and speed governing
Signal.Transducing signal is the operating condition feedback signal of synchronous motor, including: voltage, electric current, rotating speed, temperature, and from oil
The coherent signal of other system of well.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Within the spirit of utility model and principle, any modification, equivalent substitution and improvement etc. made, should be included in this utility model
Protection domain within.
Claims (10)
1. there is a latent oil directly-driven screw pump for hollow structure, including the driving motor being vertically arranged and screw pump, described
Drive and between motor and described screw pump, use flexible shaft transmission to be connected, it is characterised in that: described driving motor includes shell body
And the some single-unit motors being arranged in described shell body；The main shaft of each described single-unit motor is hollow structure, adjacent
Docking with tenon form between the rotor of two described single-unit motors, two ends are fixedly connected to form entirety by coaxial connector.
There is the latent oil directly-driven screw pump of hollow structure the most as claimed in claim 1, it is characterised in that: described adjacent two electricity
Machine rotor hollow upper end is blind mortise, and lower end is tenon, and duct is processed in centre.
There is the latent oil directly-driven screw pump of hollow structure the most as claimed in claim 2, it is characterised in that: on described tenon external diameter
Being provided with multiple tracks O RunddichtringO, rotation is inserted among blind mortise.
Have the most as claimed in claim 1 hollow structure latent oil directly-driven screw pump, it is characterised in that: described driving motor with
Being additionally provided with protector between described screw pump, motor protecter internal spindle is also hollow structure, hollow structure and driving electricity
Owner's axle construction is identical, and protector is outside to be connected as a single entity with driving motor housing body by ring flange and fastening bolt.
There is the latent oil directly-driven screw pump of hollow structure the most as claimed in claim 1, it is characterised in that: inside described adapter
It is provided with spline and reinforced seal structure.
There is the latent oil directly-driven screw pump of hollow structure the most as claimed in claim 1, it is characterised in that: described flexible shaft upper end
Some spout holes are had on external diameter.
There is the latent oil directly-driven screw pump of hollow structure the most as claimed in claim 2, it is characterised in that: the hole of described quill shaft
Road diameter is less than screw rod pump housing diameter.
There is the latent oil directly-driven screw pump of hollow structure the most as claimed in claim 1, it is characterised in that: described screw pump bottom
It is provided with suction inlet.
There is the latent oil directly-driven screw pump of hollow structure the most as claimed in claim 8, it is characterised in that: at described suction inlet
Centralizer is installed in lower section.
10. an extracting device of oil, including being arranged at aboveground power supply, it is characterised in that: also include as described in claim 1 or 9
The latent oil directly-driven screw pump with hollow structure, described latent oil directly-driven screw pump stretches in oil well, and is electrically connected with described power supply
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620609213.9U CN205841240U (en) | 2016-06-20 | 2016-06-20 | There is latent oil directly-driven screw pump and the extracting device of oil thereof of hollow structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620609213.9U CN205841240U (en) | 2016-06-20 | 2016-06-20 | There is latent oil directly-driven screw pump and the extracting device of oil thereof of hollow structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841240U true CN205841240U (en) | 2016-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620609213.9U Expired - Fee Related CN205841240U (en) | 2016-06-20 | 2016-06-20 | There is latent oil directly-driven screw pump and the extracting device of oil thereof of hollow structure |
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| Country | Link |
|---|---|
| CN (1) | CN205841240U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113062859A (en) * | 2021-04-21 | 2021-07-02 | 中国石油大学(华东) | Rotor built-in type machine-pump integrated all-metal screw pump oil production device |
| CN114876819A (en) * | 2022-05-26 | 2022-08-09 | 杜凤修 | High-stability anti-scale submersible electric pump |
-
2016
- 2016-06-20 CN CN201620609213.9U patent/CN205841240U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113062859A (en) * | 2021-04-21 | 2021-07-02 | 中国石油大学(华东) | Rotor built-in type machine-pump integrated all-metal screw pump oil production device |
| CN114876819A (en) * | 2022-05-26 | 2022-08-09 | 杜凤修 | High-stability anti-scale submersible electric pump |
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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: 20161228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |