CN204327063U - A kind of net electricity low-voltage frequency conversion device being applied to half electronic oil-well rig - Google Patents
A kind of net electricity low-voltage frequency conversion device being applied to half electronic oil-well rig Download PDFInfo
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- CN204327063U CN204327063U CN201420709159.6U CN201420709159U CN204327063U CN 204327063 U CN204327063 U CN 204327063U CN 201420709159 U CN201420709159 U CN 201420709159U CN 204327063 U CN204327063 U CN 204327063U
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Abstract
The utility model has about a kind of net electricity low-voltage frequency conversion device being applied to half electronic oil-well rig, comprises PLC, frequency conversion drive assembly, reactive power compensator, driller's operating desk and variable-frequency electric unit; Wherein, this PLC is connected respectively with frequency conversion drive assembly, driller's operating desk and variable-frequency motor group; This frequency conversion drive assembly comprises incoming line cabinet and rectifying inversion cabinet, and this incoming line cabinet is connected to 600V incoming-line busbar, and incoming line cabinet output is connected to rectifying inversion cabinet, and the outlet of this rectifying inversion cabinet is connected to variable-frequency electric unit; This reactive power compensator comprises capacitor, reactor and controller, and this capacitor and reactor are connected in series to 600V incoming-line busbar, and this capacitor is connected with controller respectively with reactor; This driller's operating desk is connected with PLC; This variable-frequency electric unit comprises two variable-frequency motors, is connected respectively with PLC, and two variable-frequency motors connect together.
Description
Technical field
The utility model relates in drilling process the device reducing energy consumption, particularly relates to a kind of net electricity low-voltage frequency conversion device being applied to half electronic oil-well rig.
Background technology
In recent years, along with the development of Global Oil drilling technology, except the requirement to drilling well high level technology, more pay attention to energy-saving and emission-reduction.
At present, Oil Rig Electric Drive System mainly contains following Four types:
(1) DB rig: it adopts all-electric AC frequency conversion system.Such advantage is: rig can hover, and power factor is high; Alternating current generator does not have collector ring, non-maintaining, and it is lasting to run; Because rotor is simple, the rotating speed of ordinary power just can be very high.Shortcoming is: variable-frequency motor has the noise etc. of carrier frequency.
(2) D rig: it adopts all-electric straight-flow system.Such advantage is: direct current generator has the characteristic of low speed, high pulling torque.Shortcoming is: motor is expensive, and power factor is low.
(3) LDB rig: it adopts half electronic AC frequency conversion system.Such advantage is: rotating disk have employed variable-frequency control technique.Shortcoming is: winch and slush pump adopt diesel engine dragging etc.
(4) LDB net electricity transformation motor: it changes the power of winch and slush pump in LDB rig into alternating-current variable frequency motor and provides.Such advantage is: power source LDB being netted winch and slush pump in electricity changes variable-frequency motor into, reduces the energy consumption of LDB rig, improves drilling efficiency, protect environment.Shortcoming is: do not realize all-electric rig feature completely, and slush pump and winch separately do not drive, and remain with a transmission case.
From the above, in current Oil Rig Electric Drive System field, the electric-control system of above-mentioned Four types all has pluses and minuses, and oil-well rig LDB rig field urgently a kind of electric-control system, make its ratio of performance to price higher, energy-saving consumption-reducing, raise the efficiency again.
Because above-mentioned existing electric-control system Problems existing, the present inventor is based on being engaged in the practical experience and professional knowledge that this type of product design manufacture enriches for many years, and coordinate the utilization of scientific principle, actively in addition research and innovation, to founding a kind of net electricity low-voltage frequency conversion device being applied to half electronic oil-well rig of new structure, existing Problems existing can be solved, make it have more practicality.Through constantly research, design, and through repeatedly studying sample and after improving, finally creating the utility model had practical value.
Summary of the invention
The purpose of this utility model is providing a kind of net electricity low-voltage frequency conversion device being applied to half electronic oil-well rig, fully achieving the power demand of oil-well rig half electric drive system under each operating mode, reach the effect of energy-saving and emission-reduction.
The purpose of this utility model adopts following technical scheme to realize.The utility model provides a kind of net electricity low-voltage frequency conversion device being applied to half electronic oil-well rig, comprises PLC, frequency conversion drive assembly, reactive power compensator, driller's operating desk and variable-frequency electric unit; Wherein, this PLC is connected respectively with frequency conversion drive assembly, driller's operating desk and variable-frequency motor group; This frequency conversion drive assembly comprises incoming line cabinet and rectifying inversion cabinet, and this incoming line cabinet is connected to 600V incoming-line busbar, and incoming line cabinet output is connected to rectifying inversion cabinet, and the outlet of this rectifying inversion cabinet is connected to variable-frequency electric unit; This reactive power compensator comprises capacitor, reactor and controller, and this capacitor and reactor are connected in series to 600V incoming-line busbar, and this capacitor is connected with controller respectively with reactor; This driller's operating desk is connected with PLC; This variable-frequency electric unit comprises two variable-frequency motors, is connected respectively with PLC, and two variable-frequency motors connect together.
The purpose of this utility model can also be further achieved by the following technical measures.
The electric low-voltage frequency conversion device of aforesaid net, wherein this frequency conversion drive assembly adopts SI NAMI CS G150 to drive cabinet.
The electric low-voltage frequency conversion device of aforesaid net, wherein this reactive power compensator adopts TSF-SY type dynamic-filter reactive compensation device.
The electric low-voltage frequency conversion device of aforesaid net, wherein this driller's operating desk comprises selection of Motor unit and the given handwheel of speed master, and this selection of Motor unit is all connected with PLC with the given handwheel of speed master, the working method that this selection of Motor unit is selected comprises single machine operation mode and bi-motor working method.
The electric low-voltage frequency conversion device of aforesaid net, wherein each variable-frequency motor is provided with motor cooling blower.
The electric low-voltage frequency conversion device of aforesaid net, wherein each variable-frequency motor is also provided with temperature pick up and wind pressure monitoring device, is connected respectively with PLC.
By technique scheme; the utility model has following advantages and beneficial effect: the net electricity low-voltage frequency conversion device being applied to half electronic oil-well rig of the present utility model; fully achieve the power demand of oil-well rig half electric drive system under each operating mode; structurally or functionally all have larger improvement; heighten operating efficiency; reduce cost, protect environment.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of manual, and can become apparent to allow above and other object of the present utility model, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
Fig. 1: be the structural representation being applied to the net electricity low-voltage frequency conversion device of half electronic oil-well rig of the present utility model.
[critical element symbol description]
1:PLC controller 2: frequency conversion drive assembly
3: reactive power compensator 4: driller's operating desk
5: variable-frequency electric unit
21: incoming line cabinet 22: rectifying inversion cabinet
31: capacitor 32: reactor
33: controller 41: selection of Motor unit
42: the given handwheel of speed master
51: variable-frequency motor 52: variable-frequency motor
Detailed description of the invention
For further setting forth the utility model for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to a kind of its detailed description of the invention of net electricity low-voltage frequency conversion device, structure, feature and the effect thereof being applied to half electronic oil-well rig that the utility model proposes, be described in detail as follows.
Consulting shown in Fig. 1, is the structural representation being applied to the net electricity low-voltage frequency conversion device of half electronic oil-well rig of the present utility model.It should be noted that, because the layout of figure limits, the annexation between each parts embodying this device that Fig. 1 is not complete.In FIG, the net electricity low-voltage frequency conversion device being applied to half electronic oil-well rig of the present utility model comprises PLC 1, frequency conversion drive assembly 2, reactive power compensator 3, driller's operating desk 4 and variable-frequency electric unit 5.
Specifically, this PLC 1 is connected respectively with frequency conversion drive assembly 2, driller's operating desk 4 and variable-frequency electric unit 5, plays the effect of adaptation and automation, and the function such as integrating control, monitoring.This frequency conversion drive assembly 2 adopts SINAMICS G150 to drive cabinet, comprise incoming line cabinet 21 and rectifying inversion cabinet 22, this incoming line cabinet 21 is connected to 600V incoming-line busbar, and incoming line cabinet 21 output is connected to rectifying inversion cabinet 22, the outlet of this rectifying inversion cabinet 22 is connected to variable-frequency electric unit 5, be supplied to variable-frequency electric unit 5 electrical source of power, to control better and to regulate variable-frequency electric unit 5.
This reactive power compensator 3 adopts TSF-SY type dynamic-filter reactive compensation device, comprise capacitor 31, reactor 32 and controller 33, this capacitor 31 and reactor 32 are connected in series to 600V incoming-line busbar, and this capacitor 31 is connected with controller 33 respectively with reactor 32, the Current Voltage etc. that the collection making this reactive power compensator 3 constantly real-time is current, with filtering higher hamonic wave effectively, the current-voltage waveform of electrical network is returned sinusoidal, improve and purification power utilization environment.
This driller's operating desk 4 is connected with PLC 1, and its control information can directly reach PLC 1, after PLC 1 processes, then controls variable-frequency electric unit 5.Concrete, this driller's operating desk 4 comprises selection of Motor unit 41 and the given handwheel 42 of speed master, and this selection of Motor unit 41 is all connected with PLC 1 with the given handwheel 42 of speed master, this selection of Motor unit 41 is for selecting single machine operation mode or bi-motor working method (working method that namely this selection of Motor unit 41 is selected comprises single machine operation mode and bi-motor working method), and the given handwheel of this speed master 42 is for the rotating speed of the variable-frequency motor in selected variable-frequency electric unit 5.
This variable-frequency electric unit 5 comprises two variable-frequency motors (or alternating-current variable frequency motor), i.e. variable-frequency motor 51 and variable-frequency motor 52, both be connected with PLC 1, for receiving the control signal that it sends, and this variable-frequency motor 51 and variable-frequency motor 52 connect together, and are also connected with same actuated element.Wherein, each variable-frequency motor is provided with motor cooling blower 511, and for removing the unnecessary heat that variable-frequency motor 51 or 52 produces in the course of the work, protection variable-frequency motor, increases the service life.Each variable-frequency motor is also provided with temperature pick up 512 and wind pressure monitoring device 513, is connected with PLC 1 respectively, be beneficial to the working condition of PLC 1 Real-Time Monitoring variable-frequency electric unit 5.
Introduce the course of work of the present utility model in detail below, in general, comprise two kinds of working methods, i.e. single machine operation mode and bi-motor working method.For example, in the course of the work, when selecting single machine operation mode, selection of Motor unit 41 can be utilized to select variable-frequency motor 51 or variable-frequency motor 52, again as required, the given handwheel 42 of governing speed master obtains the rotating speed needed, and controls variable-frequency motor, finally utilize the variable-frequency motor of selection to start working after selected through PLC 1; When selecting bi-motor working method, selection of Motor unit 41 can be utilized to select variable-frequency motor 51 and variable-frequency motor 52, again as required, the given handwheel 42 of governing speed master obtains the rotating speed needed, control variable-frequency motor through PLC 1 after selected, finally utilize two of selection variable-frequency motors to start working.And when bi-motor works, variable-frequency motor 51 and variable-frequency motor 52 can divide car to operate, and namely allow two motors to work with different rotating speeds simultaneously, and select load to separate completely, realize variable-frequency motor 51 and drive winch separately, variable-frequency motor 52 is driving device slush pump separately.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solutions of the utility model, according to any simple modification that technical spirit of the present utility model is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (6)
1. be applied to a net electricity low-voltage frequency conversion device for half electronic oil-well rig, it is characterized in that it comprises PLC, frequency conversion drive assembly, reactive power compensator, driller's operating desk and variable-frequency electric unit;
Wherein, this PLC is connected respectively with frequency conversion drive assembly, driller's operating desk and variable-frequency motor group; This frequency conversion drive assembly comprises incoming line cabinet and rectifying inversion cabinet, and this incoming line cabinet is connected to 600V incoming-line busbar, and incoming line cabinet output is connected to rectifying inversion cabinet, and the outlet of this rectifying inversion cabinet is connected to variable-frequency electric unit; This reactive power compensator comprises capacitor, reactor and controller, and this capacitor and reactor are connected in series to 600V incoming-line busbar, and this capacitor is connected with controller respectively with reactor; This driller's operating desk is connected with PLC; This variable-frequency electric unit comprises two variable-frequency motors, is connected respectively with PLC, and two variable-frequency motors connect together.
2. the electric low-voltage frequency conversion device of net according to claim 1, is characterized in that wherein this frequency conversion drive assembly adopts SINAMICS G150 to drive cabinet.
3. the electric low-voltage frequency conversion device of net according to claim 1, is characterized in that wherein this reactive power compensator adopts TSF-SY type dynamic-filter reactive compensation device.
4. the electric low-voltage frequency conversion device of net according to claim 1, it is characterized in that wherein this driller's operating desk comprises selection of Motor unit and the given handwheel of speed master, and this selection of Motor unit is all connected with PLC with the given handwheel of speed master, the working method that this selection of Motor unit is selected comprises single machine operation mode and bi-motor working method.
5. the electric low-voltage frequency conversion device of net according to claim 1, is characterized in that wherein each variable-frequency motor is provided with motor cooling blower.
6. the electric low-voltage frequency conversion device of net according to claim 5, is characterized in that wherein each variable-frequency motor being also provided with temperature pick up and wind pressure monitoring device, is connected respectively with PLC.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420709159.6U CN204327063U (en) | 2014-11-21 | 2014-11-21 | A kind of net electricity low-voltage frequency conversion device being applied to half electronic oil-well rig |
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| CN201420709159.6U CN204327063U (en) | 2014-11-21 | 2014-11-21 | A kind of net electricity low-voltage frequency conversion device being applied to half electronic oil-well rig |
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| CN204327063U true CN204327063U (en) | 2015-05-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057772A (en) * | 2018-09-26 | 2018-12-21 | 西安宝美电气工业有限公司 | Oil-well rig AC frequency conversion direct driving motor dedicated control system |
| CN112031739A (en) * | 2020-08-27 | 2020-12-04 | 江苏辰午节能科技股份有限公司 | Dual-motor driving system for petroleum drilling and control method thereof |
-
2014
- 2014-11-21 CN CN201420709159.6U patent/CN204327063U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109057772A (en) * | 2018-09-26 | 2018-12-21 | 西安宝美电气工业有限公司 | Oil-well rig AC frequency conversion direct driving motor dedicated control system |
| WO2020063391A1 (en) * | 2018-09-26 | 2020-04-02 | 西安宝美电气工业有限公司 | Dedicated control system for alternating-current variable-frequency direct-drive motor of oil drilling rig |
| CN112031739A (en) * | 2020-08-27 | 2020-12-04 | 江苏辰午节能科技股份有限公司 | Dual-motor driving system for petroleum drilling and control method thereof |
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