CN2849222Y - Direct driving intelligent screw pump driving device - Google Patents
Direct driving intelligent screw pump driving device Download PDFInfo
- Publication number
- CN2849222Y CN2849222Y CN 200520142435 CN200520142435U CN2849222Y CN 2849222 Y CN2849222 Y CN 2849222Y CN 200520142435 CN200520142435 CN 200520142435 CN 200520142435 U CN200520142435 U CN 200520142435U CN 2849222 Y CN2849222 Y CN 2849222Y
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- screw pump
- motor
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- polished rod
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- Expired - Fee Related
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- Rotary Pumps (AREA)
Abstract
The utility model relates to a direct driving intelligent driving device of a screw pump, which can be used as the driving device for the screw pump on an oil field ground. The utility model is mainly composed of a vertical motor, a motor controller, a clamp hoop, etc., wherein the vertical motor is vertically arranged on a fixed base of an oil well, and is coaxially provided with the screw pump; an output shaft of the vertical motor and a polished rod of the screw pump are directly connected together through the clamp hoop; motor torque is transmitted to a screw pump rotor under the well through the polished rod. The machine controller controls the vertical motor to work, protects equipment to run normally, displays working state, adjusts operation parameter and carries out remote monitoring. The utility model has the advantages of high system efficiency and reliability, small volume and low oil production cost, realizes the stepless speed regulation of the screw pump, and can soft start, soft parking and reverse rotation brake. The motor controller has various protection and various parameter display, can carry out the remote monitoring and intelligentized management to an oil production system can be realized.
Description
Affiliated technical field
The utility model relates to a kind of oil production equipment, and particularly a kind of screw-pump oil-extraction equipment can be used as the drive unit of ground, oil field screw pump.
Background technique
In existing screw-pump oil-extraction equipment, the screw pump drive system generally adopts normal asynchronous through belt transmission, drives the bevel type gear speed reducer, drives the rotor that the screw pump polished rod is passed to moment of torsion by polished rod underground screw pump at last by speed reducer again.This structure has eight big defectives: the one, and there are mechanical loss in belt transmission and gear reduction box, generally account for about 15% of screw pump air horsepower; The 2nd, the driving hollow shaft in the gear-box need solve the motive sealing problem of lubricant oil when rotated, and belt transmission is arranged in addition, and maintenance workload is big during the screw pump operation, and operating cost increases; The 3rd, speed reducer is the bevel type gear structure, and when polished rod needs bigger moment of torsion (for example moment of torsion surpasses 1500Nm), monolateral driving gear can produce the side moment of torsion in deceleration box, and the infringement deceleration box influences the speed reducer life-span.The 4th, its motor of existing drive unit can only be with a rotation speed operation, when oil well needs speed change to transfer ginseng, can only shut down by the artificial belt pulley of changing motor side and retarder end and changes the screw pump rotating speed, and labor intensity is big and influence normal oil producing operation.The 5th, in existing drive unit, motor is general y series motor, this electric efficiency is low, detent torque is little, high pulling torque requirement when starting in order to adapt to screw pump, often be equipped with the motor of big specification, this has further worsened the efficiency characteristic of system, has wasted electric energy, and cost for oil production is improved.The 6th, existing drive unit does not possess soft start, soft stop function, the wearing and tearing when having aggravated screw pump startup and shutdown.The 7th, motor can't carry out screw pump counter-rotating braking in the existing drive unit, need add anti-reverse braking device in addition.The 8th, existing drive unit is because the existence of speed reducer, belt pulley, counter-rotating break, makes that the screw-pump oil-extraction equipment volume is big, weight is big, is difficult to adapt to the needs of special occasions such as offshore production platform.
The model utility content
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art, a kind of screw pump direct drive unit is provided, replace the huge motor of conventional construction, belt drive part, gear-box speed reducer and counter-rotating break with vertical machine.Realized that screw pump drive system volume is little, in light weight, simple and compact for structure, efficient is high, soft start, soft stop, automatic speed changing transfer ginseng, counter-rotating braking, adapt to wide purpose, this drive unit has multiple functions such as kinds of protect, multiple demonstration, telecontrol simultaneously.
Technical solution of the present utility model is: a kind of direct-drive intelligent driving unit on screw pump, mainly form by parts such as vertical machine, electric machine controller, clips.Vertical machine is directly installed on the fixed pedestal (packing) of oil well, motor and the coaxial installation of screw pump, by clip the output shaft of vertical machine and the polished rod of screw pump are linked together, directly the vertical machine torque is passed to the screw pump rotor of down-hole by polished rod.The input end of electric machine controller by lead be connected with electrical network, the inlet wire of output terminal and vertical machine links, motor controller controls machine operation, the normally operation of protection equipment, display working condition, adjustment work parameter and carry out remote monitoring.
Principle of the present utility model is: vertical machine is in low speed stable operation in 0～600rpm speed range under the control of electric machine controller, direct drive screw pump work, thereby the belt transmission of having saved traditional driving unit on screw pump slows down and gear reducer, realized the purpose of electric-machine directly-driven.Electric machine controller is as the control gear of motor; control motor soft start on request, soft stop, discontinuous operation, by the speed running of setting, on demand adjust the screw pump rotating speed, when screw pump is shut down the screw pump rotor counter-rotating; the motor controller controls motor is in the dynamic brake state; overcome the counter-rotating torque of screw pump rotor; and the torque that sheds screw rod gradually and accumulated; prevent that screw pump polished rod counter-rotating from taking off mouth, the resistive torque when reducing screw pump and starting next time.Electric machine controller as required, parameter such as the input voltage by changing motor, frequency, electric current, power phase angle or change rotating speed of motor by changing the motor mode of connection is transferred the needs of ginseng to adapt to the screw pump speed change.Electric machine controller is as the control means of motor; realize that easily motor overload, short circuit, motor phase shortage, motor temperature are too high, line voltage is crossed high protective action; realize that easily parameters such as power input to machine, current of electric, motor power factor, motor temperature, screw pump rotating speed show, realize remote monitoring easily.
The utility model advantage compared with prior art is: belt transmission, gear-box gearing down and the anti-reverse arrestment mechanism of having cancelled existing screw pump complexity, the leakage of oil problem, loss problem, the maintenance problem that are produced have thus been eliminated, system effectiveness can improve 30%～60%, has dwindled volume, has reduced cost for oil production.The utility model can be realized online stepless change intelligence accent ginseng, no longer needs manually to change the belt pulley speed change and transfers ginseng, has reduced working strength of workers, has improved the utilization rate of equipment.But the utility model soft start, soft stop, counter-rotating braking help reducing the wearing and tearing of screw pump parts, prevent that the screw rod reversing from taking off mouth, reduce the wearing and tearing and the vibration of screw pump, prolong the working life of screw pump.Kinds of protect of the present utility model and multiple parameter amount show, can effectively guarantee the long-term normal operation of motor and screw pump, and the work operation conditions of convenient monitoring screw pump can be carried out remote monitoring as required, realizes the intellectuality of oil production system management.
Description of drawings
Fig. 1 is the schematic representation of vertical machine and clip in the utility model.
Fig. 2 is the schematic representation of electric machine controller in the utility model.
Embodiment
As shown in Figure 1, sequence number 1 is a main body vertical machine of the present utility model, and it is directly vertical to be installed on the pedestal (packing) of screw pump, for screw pump provides power.As critical piece of the present utility model, characteristics such as vertical machine should possess that detent torque is big, operation reliably and with long-term under the low speed, efficient height, torque are big, can make things convenient for speed governing, the reverting system kinetic force is strong, comparatively suitable for this reason motor is dc brushless motor, permagnetic synchronous motor, switched reluctance machines, torque motor, asynchronous motor supplied with variable frequency, dc speed-regulating motor, electromagnetic adjustable speed motor, variable pole adjustable speed motor etc.Motor is fit to make hollow shaft, connects on motor top to make things convenient for the screw pump polished rod to pass motor shaft.In addition as required, motor need install seal arrangement additional, simultaneously oil well is sealed and prevents that rainwater from entering motor.
The sequence number 3 of Fig. 1 is clips, as attached interface unit, is installed in motor top usually, and motor shaft and screw pump polished rod are linked together, and also can install in motor lower portion to connect.
As shown in Figure 2, be the electric machine controller supporting with vertical machine, its input end is connected with electrical network, and its output terminal is connected with the inlet wire of vertical machine, electric machine controller can be placed in vertical machine near, also can be installed in the outer surface of motor or be installed in motor internal.
Claims (2)
1, a kind of direct-drive intelligent driving unit on screw pump, this device can be used as the drive unit of ground, oil field screw pump.It is characterized in that: this device mainly is made up of vertical machine (1), electric machine controller (2), clip parts such as (3); Vertical machine (1) is installed on the fixed pedestal of oil well, and with the coaxial installation of screw pump, by clip (3) output shaft of vertical machine (1) and the polished rod of screw pump are directly linked together, motor torque is passed to the screw pump rotor of down-hole by polished rod.
2, a kind of direct-drive intelligent driving unit on screw pump according to claim 1, it is characterized in that: vertical machine (1) can be any of forms such as dc brushless motor, permagnetic synchronous motor, switched reluctance machines, torque motor, asynchronous motor supplied with variable frequency, dc speed-regulating motor, electromagnetic adjustable speed motor, variable pole adjustable speed motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520142435 CN2849222Y (en) | 2005-12-02 | 2005-12-02 | Direct driving intelligent screw pump driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520142435 CN2849222Y (en) | 2005-12-02 | 2005-12-02 | Direct driving intelligent screw pump driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2849222Y true CN2849222Y (en) | 2006-12-20 |
Family
ID=37521706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520142435 Expired - Fee Related CN2849222Y (en) | 2005-12-02 | 2005-12-02 | Direct driving intelligent screw pump driving device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2849222Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493944A (en) * | 2011-12-06 | 2012-06-13 | 王英浩 | Ground direct-driving screw pump oil extraction device for switched reluctance motor |
| CN101699071B (en) * | 2009-11-06 | 2013-04-03 | 青岛理工大学 | Device for monitoring and protecting speed of screw pump |
| CN103328759A (en) * | 2010-11-26 | 2013-09-25 | 奈赤－泵和***有限责任公司 | Dual rotational and axial load pick-up element |
| CN104242545A (en) * | 2013-06-17 | 2014-12-24 | 北京超同步科技有限公司 | Alternating-current asynchronous screw pump direct drive device |
| CN109915362A (en) * | 2019-02-28 | 2019-06-21 | 中国石油天然气股份有限公司 | A kind of no polished rod hydraulic braking direct driving device |
-
2005
- 2005-12-02 CN CN 200520142435 patent/CN2849222Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699071B (en) * | 2009-11-06 | 2013-04-03 | 青岛理工大学 | Device for monitoring and protecting speed of screw pump |
| CN103328759A (en) * | 2010-11-26 | 2013-09-25 | 奈赤－泵和***有限责任公司 | Dual rotational and axial load pick-up element |
| CN103328759B (en) * | 2010-11-26 | 2016-04-13 | 耐驰泵及***有限公司 | Double-acting rotation and axial load bearer element |
| CN102493944A (en) * | 2011-12-06 | 2012-06-13 | 王英浩 | Ground direct-driving screw pump oil extraction device for switched reluctance motor |
| CN104242545A (en) * | 2013-06-17 | 2014-12-24 | 北京超同步科技有限公司 | Alternating-current asynchronous screw pump direct drive device |
| CN109915362A (en) * | 2019-02-28 | 2019-06-21 | 中国石油天然气股份有限公司 | A kind of no polished rod hydraulic braking direct driving device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061220 Termination date: 20121202 |