CN201971579U - Electrical driving system for winch of petroleum drilling machine - Google Patents
Electrical driving system for winch of petroleum drilling machine Download PDFInfo
- Publication number
- CN201971579U CN201971579U CN2011200957429U CN201120095742U CN201971579U CN 201971579 U CN201971579 U CN 201971579U CN 2011200957429 U CN2011200957429 U CN 2011200957429U CN 201120095742 U CN201120095742 U CN 201120095742U CN 201971579 U CN201971579 U CN 201971579U
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- CN
- China
- Prior art keywords
- pole
- changing
- winch
- asynchronous motor
- speed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 11
- 239000003208 petroleum Substances 0.000 title claims abstract description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
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- Control Of Ac Motors In General (AREA)
Abstract
The utility model relates to an electrical driving system for a winch of a petroleum drilling machine. At present, the winch of an electric drilling machine is dragged by a direct current motor and a four-gear mechanical gearbox or an alternating current asynchronous motor and a single-speed gearbox machine. The asynchronous motor is controlled by a frequency converter to adjust the speed and finally the wide-range speed adjusting control to the winch is realized. The electrical driving system comprises the frequency converter and a pole-changing three-phase asynchronous motor; the input end of the frequency converter is connected with a power grid of the drilling machine; the output end of the frequency converter is connected with the pole-changing three-phase asynchronous motor; and the pole-changing three-phase asynchronous motor is connected with winch equipment. In the electrical driving system, by adopting the delta-YY pole-changing speed adjustment of the pole-changing three-phase asynchronous motor, the rated speed of the motor changes twice and the low-speed large torsion and high-speed small torsion required by the winch are realized.
Description
Technical field
The utility model relates to the electric drive system that a kind of petroleum drilling machine winch is used.
Background technology
Winch is large-scale key equipment in the oil-well rig, and the quality of winch speed-regulating scheme has determined the work efficiency of oil-well rig to a great extent.The speed governing of winch is carried out the electrical speed regulation realization by the mechanical gear box gearshift with to dragging motor.
At present, the winch of electric drilling machine has dragged that DC motor adds that the fourth gear mechanical gear box drags or AC asynchronous motor adds single speed change speed gear box machinery and drags two kinds of schemes.Asynchronous dynamo is by the Frequency Converter Control speed governing, and final the realization controlled the wide-range-timing of winch.
The operating characteristic of winch is as follows:
1. low-speed big operating mode, hoisting of rig for example, the trip-out during deep layer.
2. the little moment of torsion operating mode of high speed, for example empty hook hoists, transfers.
At the demand of winch operating mode, above-mentioned electric control system exists obviously not enough:
1. to add the frequency converter timing scope wide inadequately for motor.Satisfy the high pulling torque output requirement of low speed segment, just do not satisfied the maximum speed requirement of little torque high speed section.
2. winch in order to obtain more speed, has only the rotating speed that improves electrical motor to realize when high regime is moved.At this moment, asynchronous dynamo in the work of constant output characteristic section, realizes that by weak-magnetic speed-regulating electrical motor at a high speed by the Frequency Converter Control speed governing.But motor torque can sharply descend, and the hoisting force of winch also disappears thereupon.
The utility model content
The technical matters that the utility model solved provides a kind of low-speed big that winch is required and the required low-speed big and little moment of torsion of high speed of realization winch of the little moment of torsion of high speed realized.
For solving above-mentioned technical matters, the technical scheme that the utility model is taked:
The electric drive system that a kind of petroleum drilling machine winch is used, it is characterized in that: comprise frequency converter, pole-changing three phase asynchronous motor, the input end of frequency converter is connected with the rig electrical network, and mouth is connected with the pole-changing three phase asynchronous motor, and the pole-changing three phase asynchronous motor is connected with winch equipment.
Above-mentioned pole-changing three phase asynchronous motor comprises rotor, stator and pole-changing device, and pole-changing device and stator are electrically connected.
The mouth of above-mentioned frequency converter is connected with the pole-changing device of pole-changing three phase asynchronous motor, and the rotor of pole-changing three phase asynchronous motor is connected with the power input shaft end of winch equipment.
Compared with prior art, the utility model adopts the pole changing speed control of pole-changing three phase asynchronous motor △-YY can realize that the rated speed of rotation of motor changes 2 times, realizes required low-speed big and the little moment of torsion of high speed of winch.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Referring to Fig. 1, the utility model comprises frequency converter 2, pole-changing three phase asynchronous motor 1, and the input end 21 of frequency converter 2 is connected with rig electrical network 3, and mouth 22 is connected with pole-changing three phase asynchronous motor 1, and pole-changing three phase asynchronous motor 1 is connected with winch equipment 4.
Above-mentioned pole-changing three phase asynchronous motor 1 comprises rotor 11, stator 12 and pole-changing device 13, and pole-changing device 13 is electrically connected with stator 12.
The mouth 22 of above-mentioned frequency converter 2 is connected with the pole-changing device 13 of pole-changing three phase asynchronous motor 1, and the rotor 12 of pole-changing three phase asynchronous motor 1 is connected with the power input shaft end 41 of winch equipment 4.
The utility model adopts the speed-regulating scheme of the pole changing speed control adapter converter speed governing of △/YY, the work characteristics that has suited winch, can satisfy the requirement of winch equipment, in the low-speed big operating mode, hoisting of rig for example is during trip-out during deep layer, requirement according to industrial and mineral, rig driller people sends instruction, and the pole-changing three phase asynchronous motor switches to delta connection, and machine operation is in low-speed big characteristic interval.Rig driller people sends instruction and gives frequency converter 2, by the output variation of frequency converter 2, reaches the rotating speed and the torque of control pole-changing three phase asynchronous motor rotor 12, has further realized the speed governing of winch equipment and has transferred the square function.In the little moment of torsion operating mode of high speed, for example empty hook hoists, requirement according to industrial and mineral, rig driller people sends instruction, and the pole-changing three phase asynchronous motor switches the YY connection, and machine operation is in the little torque characteristics of high speed interval, rig driller people sends instruction and gives frequency converter 2, output by frequency converter 2 changes, and reaches the rotating speed and the torque of control pole-changing three phase asynchronous motor rotor 12, has further realized the speed governing of winch equipment and has transferred the square function.
Claims (3)
1. electric drive system that petroleum drilling machine winch is used, it is characterized in that: comprise frequency converter (2), pole-changing three phase asynchronous motor (1), the input end (21) of frequency converter (2) is connected with rig electrical network (3), mouth (22) is connected with pole-changing three phase asynchronous motor (1), and pole-changing three phase asynchronous motor (1) is connected with winch equipment (4).
2. the electric drive system that a kind of petroleum drilling machine winch according to claim 1 is used, it is characterized in that: described pole-changing three phase asynchronous motor (1) comprises rotor (11), stator (12) and pole-changing device (13), and pole-changing device (13) is electrically connected with stator (12).
3. the electric drive system that a kind of petroleum drilling machine winch according to claim 1 and 2 is used, it is characterized in that: the mouth (22) of described frequency converter (2) is connected with the pole-changing device (13) of pole-changing three phase asynchronous motor (1), and the rotor (12) of pole-changing three phase asynchronous motor (1) is connected with the power input shaft end (41) of winch equipment (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200957429U CN201971579U (en) | 2011-04-02 | 2011-04-02 | Electrical driving system for winch of petroleum drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200957429U CN201971579U (en) | 2011-04-02 | 2011-04-02 | Electrical driving system for winch of petroleum drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201971579U true CN201971579U (en) | 2011-09-14 |
Family
ID=44576685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200957429U Expired - Lifetime CN201971579U (en) | 2011-04-02 | 2011-04-02 | Electrical driving system for winch of petroleum drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201971579U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887450A (en) * | 2012-10-12 | 2013-01-23 | 南通力威机械有限公司 | Heavy-load and light-load dual-purpose hydraulic umbilical winch |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
-
2011
- 2011-04-02 CN CN2011200957429U patent/CN201971579U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887450A (en) * | 2012-10-12 | 2013-01-23 | 南通力威机械有限公司 | Heavy-load and light-load dual-purpose hydraulic umbilical winch |
| US11955782B1 (en) | 2022-11-01 | 2024-04-09 | Typhon Technology Solutions (U.S.), Llc | System and method for fracturing of underground formations using electric grid power |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |