CN204103484U - A kind of oil-well rig DC micro power grid system - Google Patents
A kind of oil-well rig DC micro power grid system Download PDFInfo
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- CN204103484U CN204103484U CN201420475399.4U CN201420475399U CN204103484U CN 204103484 U CN204103484 U CN 204103484U CN 201420475399 U CN201420475399 U CN 201420475399U CN 204103484 U CN204103484 U CN 204103484U
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Abstract
The utility model relates to a kind of oil-well rig DC micro power grid system, belongs to oil-well rig equipment field.Comprise dynamical system, drive system and DC micro power grid system, DC micro power grid system comprises peak adjusting device, micro battery and control device, peak adjusting device comprises peak regulation motor, energy accumulation device for fly wheel, and wherein, micro battery is connected to energy accumulation device for fly wheel through rectifier, DC bus and current transformer.Micro battery, respectively by winch energy recycle device rectifier, boost rectifier, is connected in parallel on the connecting line between energy accumulation device for fly wheel and peak regulation motor through DC bus.The utility model, for different load and pulsating load feature, realizes power flexible and exports and peaking operation function, decrease engine capacity, improve economy.DC micro power grid system possesses adaptation high-power output function in short-term simultaneously, when operating mode freed by serious bit freezing, realizes winch high pulling torque and low velocity and the complete of speed-regulating range width and electrically drives.
Description
Technical field
The utility model relates to oil-well rig DC micro power grid system, belongs to oil-well rig equipment field.
Background technology
Oil-well rig is equipped with jumbo separate energy source dynamical system, and hoisting system, mud circulating system, drill bit precession system etc. for rig provide sufficient power.Complicated because the rotating speed of the work unit of rig, power, part throttle characteristics parameter difference are large, operating mode is complicated, needs between Diesel engine and working machine, arrange complicated also car drive system, realizes the functions such as speed change, bending moment, clutch.
The kind of drive of machinery oil-well rig is that Diesel engine is connected with compound chain box by fluid coupling, clutch, realizes power input.Drive system drives generator loading to be connected by universal drive shaft with slush pump, winch, rotating disk by the output clutch of compound chain box.The high-power frequent impact load that the lifting of machine dimensions drill drilling tool, the interrupted feature transferring operating mode cause, the fuel economy of large impact loading effects powerplant module and useful life.
Current employing machinery peak adjusting device reduces mechanical oil-well rig in the loaded state to the impact load of diesel engine.Existing machinery peak adjusting device comprises peak regulation motor, energy accumulation device for fly wheel, when lower brill or lower empty tourist bus work condition state, energy accumulation device for fly wheel only stores the redundant energy of diesel engine by peak regulation motor, under trip-out or load condition, the energy of simple dependence energy accumulation device for fly wheel release, only can reach the impact load reduced diesel engine, be difficult to meet compound box power demand.
Utility model content
The utility model provides a kind of oil-well rig DC micro power grid system, by introducing flywheel energy storage DC micro power grid system, power margin under absorption storage winch inoperative condition during powerplant module underloading, the high-power release when promoting drilling tool, hook block, thus significantly improve the service conditions of powerplant module, reduce equipment dynamic unit capacity, thus reach the object of energy-saving and emission-reduction.
The utility model comprises dynamical system, drive system and DC micro power grid system, DC micro power grid system comprises peak adjusting device, micro battery and control device, peak adjusting device comprises peak regulation motor, energy accumulation device for fly wheel, wherein, micro battery is connected to energy accumulation device for fly wheel through rectifier, DC bus and current transformer.
Described micro battery is winch energy recycle device, be made up of electromagnetic brake brake, generator, electromagnetic brake brake one end is connected with winch drum shaft by clutch, its other end is through gearbox, generator, winch energy recycle device rectifier, and be connected on the connecting line between energy accumulation device for fly wheel and peak regulation motor by DC bus, peak regulation motor two way convertor, energy accumulation device for fly wheel two way convertor, winch energy recycle device rectifier are connected with DC micro-electric net controller, and control by it.
Above-mentioned micro battery is diesel engine generator, diesel engine generator is through boost rectifier, and be connected on the connecting line between energy accumulation device for fly wheel and peak regulation motor by DC bus, peak regulation motor two way convertor, energy accumulation device for fly wheel two way convertor, boost rectifier are connected with DC micro-electric net controller, and control by it.
Above-mentioned micro battery is net electric system, net electric system is through rectifier, and be connected on the connecting line between energy accumulation device for fly wheel and peak regulation motor by DC bus, peak regulation motor two way convertor, energy accumulation device for fly wheel two way convertor, boost rectifier are connected with DC micro-electric net controller, and control by it.
Above-mentioned micro battery, respectively by winch energy recycle device rectifier, boost rectifier, is connected in parallel on the connecting line between energy accumulation device for fly wheel and peak regulation motor through DC bus.Peak regulation motor two way convertor, energy accumulation device for fly wheel two way convertor, boost rectifier, winch energy recycle device rectifier are connected with DC micro-electric net controller, and control by it.
The beneficial effect of the utility model patent is that Diesel engine and DC micro power grid system realize machinery-electrically combination drive, for different load and pulsating load feature, realize power flexible to export and peaking operation function, decrease engine capacity, improve economy.DC micro power grid system possesses adaptation high-power output function in short-term simultaneously, when operating mode freed by serious bit freezing, realizes winch high pulling torque and low velocity and the complete of speed-regulating range width and electrically drives.
Accompanying drawing explanation
Fig. 1 is machinery-electrically hybrid power transmission system;
Fig. 2 is DC micro power grid system.
Embodiment
By reference to the accompanying drawings 1,2, the utility model comprises dynamical system, drive system and DC micro power grid system, DC micro power grid system comprises peak adjusting device, micro battery and control device, peak adjusting device comprises peak regulation motor, energy accumulation device for fly wheel, wherein, micro battery is connected to energy accumulation device for fly wheel through rectifier, DC bus and current transformer.
Described micro battery 1 is winch energy recycle device 197, be made up of electromagnetic brake brake, generator, electromagnetic brake brake one end is connected with winch 1 by clutch 5, its other end is through gearbox, generator, winch energy recycle device rectifier 196, and be connected on the connecting line 190 between energy accumulation device for fly wheel 193 and peak regulation motor 161 by DC bus 191, peak regulation motor two way convertor 162, energy accumulation device for fly wheel two way convertor 192, winch energy recycle device rectifier 196 are connected with DC micro-electric net controller 198, and control by it.
Above-mentioned micro battery 2 is diesel engine generators 194, diesel engine generator 194 is through boost rectifier 195, and be connected on the connecting line 190 between energy accumulation device for fly wheel 193 and peak regulation motor 161 by DC bus 191, peak regulation motor two way convertor 162, energy accumulation device for fly wheel two way convertor 192, boost rectifier 195 are connected with DC micro-electric net controller 198, and control by it.
Above-mentioned micro battery 3 is net electric systems, net electric system is through rectifier 195, and be connected on the connecting line 190 between energy accumulation device for fly wheel 193 and peak regulation motor 161 by DC bus 191, peak regulation motor two way convertor 162, energy accumulation device for fly wheel two way convertor 192, boost rectifier 195 are connected with DC micro-electric net controller 198, and control by it.
Above-mentioned micro battery 1,2, respectively by winch energy recycle device rectifier 196, boost rectifier 195, is connected in parallel on the connecting line 190 between energy accumulation device for fly wheel 193 and peak regulation motor 161 through DC bus 191.Peak regulation motor two way convertor 162, energy accumulation device for fly wheel two way convertor 192, boost rectifier 195, winch energy recycle device rectifier 196 are connected with DC micro-electric net controller 198, and control by it.
In normal drilling condition, start diesel engine unit, drive slush pump, rotating disk to drive generator steadily efficiently to work through compound chain box 9.Rotating disk drives generator to be that drilling rod rotary actuation disk motor is powered, and realizes creeping into.Slush pump provides circulating mud for drifting.
Transfer in drilling tool operating mode, diesel engine group is out of service, DC micro power grid system isolated operation, according to pulse power feature, realizes power flexible and exports.When transferring drilling tool, winch energy recycle device 197 is coaxial with winch, winch energy recycle device 197 reclaims drilling tool and transfers potential energy, power to energy accumulation device for fly wheel 193 through winch energy recycle device rectifier 196, DC bus 191, energy accumulation device for fly wheel two way convertor 192, large rotating inertia flywheel gear axle system raising speed storage power.Drilling tool transfer complete after, diesel engine generator 194 continues as energy accumulation device for fly wheel 193 charge through boost rectifier 195, DC bus 191, energy accumulation device for fly wheel two way convertor 192.When promoting empty tourist bus, energy accumulation device for fly wheel 193 reduction of speed generates electricity, and drives peak regulation motor 161 to run through connecting line 190.Peak regulation motor 161 outputting power promotes empty tourist bus or promotes drilling tool in short-term.
Hoist in drilling tool operating mode, during underload, diesel engine unit is out of service, and during heavy duty, Diesel engine runs, and peak regulation motor and DC micro power grid system run.The utility model, according to trip-out load pulse feature, realizes soft power stage.During lower emptying tourist bus, winch energy recycle device 197 reclaims tourist bus and transfers potential energy, powers to energy accumulation device for fly wheel 193 through rectifier 196, DC bus 191, the energy storage of flywheel raising speed.After empty tourist bus is transferred, diesel engine generator 194 continues as energy accumulation device for fly wheel 193 charge through rectifier 195, DC bus 191; When promoting drilling tool, energy accumulation device for fly wheel 193 reduction of speed generates electricity, and drives peak regulation motor 161 to run through DC bus 191, and during underloading, peak regulation motor 161 separately outputting power promotes drilling tool; During heavy duty, peak regulation motor 161 and diesel engine unit promote drilling tool.
Drifting state of cyclic operation, starts Diesel engine, DC micro power grid system, and when slush pump starts, its impact load is born by DC micro power grid system.After normal operation, DC micro power grid system is out of service.
Operating mode freed by bit freezing, DC micro power grid system isolated operation, according to winch large torque low speed degree load character, realizes power flexible and exports.During slight bit freezing, diesel engine generator 194 is powered separately for peak regulation motor 161, for winch provides power; During severe bit freezing, diesel engine generator 194 is first for flywheel energy storage motor 193 is powered energy storage, and then diesel engine generator 194 and flywheel energy storage motor parallel operate to peak regulation motor provides short time high-power input, for winch provides power.
Claims (5)
1. an oil-well rig DC micro power grid system, the present invention includes dynamical system, drive system and DC micro power grid system, it is characterized in that: described DC micro power grid system comprises peak adjusting device, micro battery and control device, peak adjusting device comprises peak regulation motor, energy accumulation device for fly wheel, wherein, micro battery is connected to energy accumulation device for fly wheel through rectifier, DC bus and current transformer.
2. oil-well rig DC micro power grid system according to claim 1, it is characterized in that: described micro battery is winch energy recycle device (197), by electromagnetic brake brake, generator forms, electromagnetic brake brake one end is connected with winch 1 by clutch 5, its other end is through gearbox, generator, winch energy recycle device rectifier (196), and be connected on the connecting line (190) between energy accumulation device for fly wheel (193) and peak regulation motor (161) by DC bus (191), peak regulation motor two way convertor (162), energy accumulation device for fly wheel two way convertor (192), winch energy recycle device rectifier (196) is connected with DC micro-electric net controller (198).
3. oil-well rig DC micro power grid system according to claim 1, described micro battery is diesel engine generator (194), it is characterized in that: diesel engine generator (194) is through boost rectifier (195), and being connected on the connecting line (190) between energy accumulation device for fly wheel (193) and peak regulation motor (161) by DC bus (191), peak regulation motor two way convertor (162), energy accumulation device for fly wheel two way convertor (192), boost rectifier (195) are connected with DC micro-electric net controller (198).
4. oil-well rig DC micro power grid system according to claim 1, described micro battery is net electric system, it is characterized in that: net electric system is through rectifier (195), and being connected on the connecting line (190) between energy accumulation device for fly wheel (193) and peak regulation motor (161) by DC bus (191), peak regulation motor two way convertor (162), energy accumulation device for fly wheel two way convertor (192), boost rectifier (195) are connected with DC micro-electric net controller (198).
5. oil-well rig DC micro power grid system according to claim 1, it is characterized in that: described micro battery is respectively by winch energy recycle device rectifier (196), boost rectifier (195), be connected in parallel on the connecting line (190) between energy accumulation device for fly wheel (193) and peak regulation motor (161) through DC bus (191), peak regulation motor two way convertor (162), energy accumulation device for fly wheel two way convertor (192), boost rectifier (195), winch energy recycle device rectifier (196) are connected with DC micro-electric net controller (198).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420475399.4U CN204103484U (en) | 2014-08-21 | 2014-08-21 | A kind of oil-well rig DC micro power grid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420475399.4U CN204103484U (en) | 2014-08-21 | 2014-08-21 | A kind of oil-well rig DC micro power grid system |
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| Publication Number | Publication Date |
|---|---|
| CN204103484U true CN204103484U (en) | 2015-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420475399.4U Expired - Fee Related CN204103484U (en) | 2014-08-21 | 2014-08-21 | A kind of oil-well rig DC micro power grid system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201666A (en) * | 2014-08-21 | 2014-12-10 | 中国石油化工集团公司 | Petroleum drilling machine direct current micro-grid system |
| US10483765B2 (en) | 2015-02-20 | 2019-11-19 | Maersk Drilling A/S | Power generation and distribution system for offshore drilling units |
-
2014
- 2014-08-21 CN CN201420475399.4U patent/CN204103484U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201666A (en) * | 2014-08-21 | 2014-12-10 | 中国石油化工集团公司 | Petroleum drilling machine direct current micro-grid system |
| CN104201666B (en) * | 2014-08-21 | 2019-10-29 | 中国石油化工集团公司 | Oil-well rig DC micro power grid system |
| US10483765B2 (en) | 2015-02-20 | 2019-11-19 | Maersk Drilling A/S | Power generation and distribution system for offshore drilling units |
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| 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: 20150114 Termination date: 20190821 |
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| CF01 | Termination of patent right due to non-payment of annual fee |