CN213235031U - Electric control system of multi-power supply mechanical composite drive oil drilling machine - Google Patents
Electric control system of multi-power supply mechanical composite drive oil drilling machine Download PDFInfo
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- CN213235031U CN213235031U CN202021628498.3U CN202021628498U CN213235031U CN 213235031 U CN213235031 U CN 213235031U CN 202021628498 U CN202021628498 U CN 202021628498U CN 213235031 U CN213235031 U CN 213235031U
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Abstract
The utility model discloses a many power supply machinery combination drive oil-well rig electrical system, including automatically controlled room, be provided with many power supply in the automatically controlled room and switch power supply system, frequency conversion actuating system, MCC system, PLC control system, bypass control system, reactive compensation system, refrigerating system, do not possess industrial electric network at the scene and need use under the condition of diesel engine construction, energy-conserving generator, supplementary generator can freely switch to the load power supply. When the industrial power grid is arranged on site, the industrial power grid can be supplied with power or the industrial power grid and the original generator can be supplied with power together according to different capacities of the industrial power grid, so that the drilling cost is saved, the environmental pollution is reduced, and the multi-power supply system is distributed according to the load size and the power supply area, so that the heavy load production requirements of various different power supply sites can be better met. The quick switching between the grid power and the power supply of the generator is realized, the capacity of dealing with emergencies such as power failure on site is improved, and the smooth drilling construction is ensured to the maximum extent.
Description
Technical Field
The utility model relates to a control technical field of oil-well rig equipment, concretely relates to many powers supply machinery combination drive oil-well rig electrical system.
Background
The mechanical compound drive oil drilling machine for domestic use generally adopts 3-4 diesel engines for parallel driving, a winch and a drilling pump are mechanically driven, a turntable is driven by an independent alternating current motor, and an energy-saving generator and an auxiliary generator are configured for supplying power to the whole system. The energy-saving generator is driven by the surplus power of the drilling machine diesel engine, has certain energy-saving and consumption-reducing effects, the drilling cost is higher and higher along with the rising of the oil price, the pollution of the diesel oil drive to the environment is larger, and in recent years, various large oil fields begin to adopt industrial power grids for power supply. With the increasing number of network electric drilling machines, sometimes a plurality of network electric drilling machines are simultaneously producing in the same area, and the high-voltage incoming lines all adopt the same group of high-voltage lines, when the load of each well team increases, the voltage fluctuation of the power grid is serious, when a certain well team has faults such as overload or short circuit of the load, the power failure of the whole power grid can be caused, and when the quality and capacity of the power grid can not meet the production requirement, the diesel generator still needs to be used for supplying power. The original power supply control system of the drilling machine does not have the rapid switching of grid power and diesel generator power supply, a plurality of power supplies can not supply power at the same time, the power restoration time after power failure due to faults on site is longer, and the production requirement of heavy load on site is difficult to meet.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a many power supplies power supply machinery combination drive oil-well rig electrical system.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a many power supplies power machinery combination drive oil-well rig electrical system, includes automatically controlled room, be provided with many power supplies in the automatically controlled room and switch power supply system, variable frequency drive system, MCC system, PLC control system, bypass control system, reactive compensation system, refrigerating system, many power supplies switch power supply system and insert the power supply end of net electricity, energy-saving generator and auxiliary generator, many power supplies switch power supply system's first power output end with variable frequency drive system's power input end is connected, many power supplies switch power supply system's second power output end simultaneously with MCC system, PLC control system, reactive compensation system, refrigerating system's power supply input end is connected, PLC control system's control signal output passes through bypass control system with variable frequency drive system's control signal input end is connected.
Furthermore, many power supply switch over power supply system comprises inlet wire cubical switchboard and power switch over cabinet, inlet wire cubical switchboard's power input end with the mains electricity, energy-conserving generator and auxiliary generator's power supply end are connected, inlet wire cubical switchboard's power output end with the power input end of power switch over cabinet is connected.
Specifically, set up net electricity inlet wire frame circuit breaker, energy-conserving generator inlet wire frame circuit breaker, auxiliary generator inlet wire frame circuit breaker in the inlet wire cubical switchboard.
Specifically, four double-power-supply change-over switches with two inlets and one outlet and five copper busbars for wiring are arranged in the power supply switching cabinet, a first input end of a first double-power-supply change-over switch and a first input end of a second double-power-supply change-over switch are connected with an output end of the energy-saving generator incoming line frame circuit breaker through a second copper busbar, a second input end of the first double-power-supply change-over switch and a second input end of the second double-power-supply change-over switch are connected with an output end of the auxiliary generator incoming line frame circuit breaker through a third copper busbar, a first input end of a third double-power-supply change-over switch and a first input end of a fourth double-power-supply change-over switch are connected with an output end of the grid generator incoming line frame circuit breaker through a first copper busbar, an output end of the first double-power-supply change-over switch and a second input end of the third double-power-supply And the output end of the fourth double-power-supply change-over switch is connected with the power input end of the variable-frequency driving system through a seventh copper busbar.
Furthermore, the frequency conversion driving system comprises a rotary table frequency converter and a bit feeding frequency converter, and power input ends of the rotary table frequency converter and the bit feeding frequency converter are connected with an output end of a fourth dual-power change-over switch.
Further, the PLC control system comprises a PLC control cabinet and a driller room PLC console, the output end of the third dual-power-supply changeover switch is connected with the power input end of the PLC control cabinet, the power output end of the PLC control cabinet is electrically connected with the driller room PLC console, and the control signal output end of the driller room PLC console is connected with the control signal input end of the variable-frequency driving system through the bypass control system.
Specifically, the bypass control system consists of a knob switch and a hand wheel potentiometer.
Specifically, the MCC system includes an MCC cabinet and a soft start cabinet, and power input ends of the MCC cabinet and the soft start cabinet are connected with an output end of the third dual-power transfer switch at the same time.
Specifically, the refrigeration system is composed of a plurality of air conditioners.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the utility model discloses do not possess industrial power grid at the scene and need use under the condition of diesel engine construction, energy-conserving generator, supplementary generator can freely switch into the load power supply. When the industrial power grid is provided on site, the industrial power grid can be supplied or the industrial power grid and the original generator can be supplied together according to different capacities of the industrial power grid, so that the drilling cost is saved, the environmental pollution is reduced, and the multi-power-supply-circuit power supply system is distributed according to the load size and the power supply area, so that the heavy load production requirements of various different power supply sites can be better met. The quick switching between the grid power and the power supply of the generator is realized, the capacity of dealing with emergencies such as power failure on site is improved, and the smooth drilling construction is ensured to the maximum extent.
(2) The utility model has a reactive compensation system, when the diesel engine set is used, the fuel consumption can be obviously reduced; by using the network power incoming line, the power utilization factor can be obviously provided in the transformer power supply mode, and the utilization rate of the transformer is improved.
(3) The utility model discloses having bypass control system, when PLC control system communication breaks down and can not normally work, accessible bypass control system opens to frequency conversion actuating system inlet wire and stops and speed given control, guarantees that electrical system still can emergent work.
Drawings
Fig. 1 is a schematic block diagram of the circuit structure of the present invention.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
The utility model discloses an automatically controlled room, be provided with many powers in the automatically controlled room and switch power supply system, frequency conversion actuating system, MCC system, PLC control system, bypass control system, reactive compensation system, refrigerating system, many powers switch power supply system and insert the feed end of net electricity, energy-conserving generator and auxiliary generator, many powers switch power supply system's first power supply output with frequency conversion actuating system's power input end is connected, many powers switch power supply system's second power supply output simultaneously with MCC system, PLC control system, reactive compensation system, refrigerating system's power supply input end is connected, PLC control system's control signal output passes through bypass control system with frequency conversion actuating system's control signal input end is connected.
Furthermore, many power supply switch over power supply system comprises inlet wire cubical switchboard and power switch over cabinet, inlet wire cubical switchboard's power input end with the mains electricity, energy-conserving generator and auxiliary generator's power supply end are connected, inlet wire cubical switchboard's power output end with the power input end of power switch over cabinet is connected.
Specifically, a grid power incoming line frame breaker QF1, an energy-saving generator incoming line frame breaker QF2 and an auxiliary generator incoming line frame breaker QF3 are arranged in the incoming line switch cabinet.
Specifically, four double-power-supply change-over switches with two inlets and one outlet and five copper busbars for wiring are arranged in the power supply switch cabinet, a first input end of a first double-power-supply change-over switch Q1 and a first input end of a second double-power-supply change-over switch Q2 are connected with an output end of the energy-saving generator incoming line frame circuit breaker QF2 through a second copper busbar, a second input end of a first double-power-supply change-over switch Q1 and a second input end of a second double-power-supply change-over switch Q2 are connected with an output end of the auxiliary generator incoming line frame circuit breaker QF3 through a third copper busbar, a first input end of a third double-power-supply change-over switch Q3 and a first input end of a fourth double-power-supply change-over switch Q4 are connected with an output end of the grid power generator incoming line frame circuit breaker QF1 through a first copper busbar, an output end of a first double-power-supply change-over, the output end of the second double-power-supply change-over switch Q2 is connected with the second input end of the fourth double-power-supply change-over switch Q4 through a fifth copper busbar, the output end of the third double-power-supply change-over switch Q3 is simultaneously connected with the power supply input end of the MCC system, the PLC control system, the reactive compensation system and the refrigeration system through a sixth copper busbar, and the output end of the fourth double-power-supply change-over switch Q4 is connected with the power supply input end of the variable-frequency drive system through a seventh copper busbar.
Furthermore, the frequency conversion driving system comprises a rotary table frequency converter and a bit feeding frequency converter, and power input ends of the rotary table frequency converter and the bit feeding frequency converter are connected with an output end of a fourth dual-power change-over switch.
Further, the PLC control system comprises a PLC control cabinet and a driller room PLC console, the output end of the third dual-power transfer switch Q3 is connected with the power input end of the PLC control cabinet, the power output end of the PLC control cabinet is electrically connected with the driller room PLC console, and the control signal output end of the driller room PLC console is connected with the control signal input end of the variable-frequency driving system through the bypass control system.
Specifically, the bypass control system consists of a knob switch and a hand wheel potentiometer.
Specifically, the MCC system includes an MCC cabinet and a soft start cabinet, and power input ends of the MCC cabinet and the soft start cabinet are simultaneously connected with an output end of the third dual-power-supply changeover switch Q3.
Specifically, the refrigeration system is composed of a plurality of air conditioners.
The three frame circuit breakers of the grid power incoming line frame circuit breaker QF1, the energy-saving generator incoming line frame circuit breaker QF2 and the auxiliary generator incoming line frame circuit breaker QF3 have multiple protection functions of undervoltage, overcurrent, overload, interphase short circuit, ground short circuit and the like, wherein rated current of QF1 is more than or equal to 3200A, and the incoming line requirement of a 2000KVA box-type transformer can be met. QF2 and QF3 rated current 2000A meet the requirements of an auxiliary generator and an energy-saving generator on wire inlet. Each incoming line loop in the cabinet is provided with a voltage meter and an ammeter, and in addition, a meter is arranged on the network power incoming line loop to calculate the power consumption by collecting the 400V voltage and the current; the user can look over the strapping table of net electric inlet wire power at any time, records the power consumption of electric wire netting of the well team.
When the site does not have network power supply and needs to use a diesel engine as power to carry out drilling construction, a single energy-saving generator power supply mode is adopted to supply power for the MCC system and the variable frequency driving system. The auxiliary generator can also directly supply power to the variable frequency driving system, and the energy-saving generator only supplies power to the MCC system; when the energy-saving generator fails and stops or needs to be maintained and overhauled, the auxiliary generator can replace the energy-saving generator to supply power to the MCC system and the variable-frequency driving system.
When the drilling site has network power, the network power can be used for supplying power to replace a diesel engine or an energy-saving generator, and in addition, the network power and the energy-saving generator can be used for supplying power simultaneously, so that the power supply capacity of the whole system is increased, and sufficient power required by the drilling site construction is met. The system can realize the simultaneous power supply of the grid power and two generator sets; when the transformer capacity of the on-site grid power is enough, the grid power transformer can be directly adopted to supply power to the MCC system and the variable frequency driving system, and the energy-saving generator and the auxiliary generator are used as standby. When the capacity of the transformer of the on-site grid power supply can not meet the load requirement, the grid power supply can be adopted to supply power to the MCC system, the energy-saving generator supplies power to the variable-frequency driving system, and the auxiliary generator serves as an emergency standby.
The multi-power-supply-circuit power supply system is distributed according to the load size and the power supply area, and can better meet the production requirements of heavy loads on various different power supply sites. The quick switching between the grid power and the power supply of the generator is realized, the capacity of dealing with emergencies such as power failure on site is improved, and the smooth drilling construction is ensured to the maximum extent.
The turntable frequency converter adopts ABB ACS880-07XT-1190A-3 and has a rated power of 630KW, and can drive a 600KW turntable motor; the turntable frequency converter adopts a DTC control mode with speed encoder feedback to realize stepless speed regulation and accurate torque control of the turntable motor. The turntable frequency conversion system adopts an ABB system control system, and has the functions of self diagnosis, real-time parameter display, STO motor safety maintenance interlocking protection and turntable torque limitation anti-reverse. The turntable frequency conversion cabinet comprises a permission and encoder interface module, a braking unit and a corresponding braking resistor, and energy consumption is realized when the turntable brakes and decelerates.
The automatic bit feeding frequency conversion cabinet comprises a frequency converter. The frequency converter selects ABB ACS 880-01-105A-3; the automatic drill feeding motor can drive a 45KW drill feeding motor, and can realize the functions of automatic drill feeding and emergency lifting switching; when the winch has a problem, the underground drill rod can be lifted away from the bottom of the well by adopting emergency lifting, so that the safety of the underground drilling tool is ensured.
The MCC system comprises an MCC cabinet and a soft start control cabinet. The MCC cabinet realizes power supply to a mud tank, a water tank area, an oil tank, a driller room, a driller bias room, a drilling platform and derrick area, a logging room and a living area in a solid control area, and power and illumination power consumption are guaranteed. The soft start cabinet mainly provides starting power supply for motors with the power over 30KW, such as a weighting pump, a shearing pump, a desanding pump and a desilting pump in a solid control area, adopts a one-to-five mode, can control the soft start of 5 motors by one soft start cabinet, automatically switches to a bypass power supply mode after the soft start of one motor is finished, and then can perform soft start on the other motor; compared with the scheme that each motor is provided with one soft starter, the matching cost is saved.
The PLC control system comprises a PLC control cabinet and a driller room remote control console, the PLC control cabinet is installed in an electric control room as a PLC main station, the driller remote control console is installed in the driller room as a PLC substation, and the PLC main station and the substation realize power supply and communication connection through a power cable and an industrial Ethernet cable. The PLC control cabinet is provided with the purifying power supply and the uninterrupted power supply, the purifying power supply can effectively suppress power grid noise and peak interference, the voltage stabilization and anti-interference capability is good, and the uninterrupted power supply can supply power in an emergency mode and outputs power to provide stable and reliable power for the PLC control system. The PLC control system selects Siemens S7-1500 series PLC, and comprises modules of digital input, digital output, analog input and the like, and an HMI and a high-speed counter module are additionally arranged in the driller remote control cabinet. The high-speed counter module can calculate the well depth and the hook height through the PLC after being connected with the encoder on the winch, participate in the control of the disc brake to achieve the purpose of controlling and protecting the brake of the traveling block, can preset an upper collision and lower collision point through the HMI interface, and effectively ensures the safe operation of the driller on the hook of the traveling block.
The bypass control system is mainly formed by connecting a knob switch, an indicator light, a hand wheel potentiometer, a relay and the like which are arranged on a driller remote control console with a variable frequency driving system in an electric control room through a multi-core control cable.
SVG static var generator is selected for the reactive compensation cabinet, compensation power is not less than 600Kvar, SVG connects in parallel in the electric wire netting, and its reactive current can change along with load reactive current's change fast, the required reactive power of automatic compensation system. When the diesel engine set is used, the fuel consumption can be obviously reduced; by using the network power incoming line, the power utilization factor can be obviously provided in the transformer power supply mode, and the utilization rate of the transformer is improved.
The refrigerating system is composed of two 7.5-ton industrial air conditioners and adopts a one-standby-one mode. The frequency converter and all components and parts in the electronic control room are heating units when working, so that the air conditioner is equipped to refrigerate the frequency converter and all the components and parts in the electronic control room, and the air conditioner also has a dehumidification function and an auxiliary heating function in order to meet various domestic weather conditions.
The above embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the protection scope of the present invention, but all the insubstantial changes or modifications made in the spirit and the idea of the main design of the present invention, the technical problems solved by the embodiment are still consistent with the present invention, and all should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a many power supplies power supply machinery combination drive oil-well rig electrical system which characterized in that: the power supply system comprises an electric control room, wherein a multi-power supply switching power supply system, a variable frequency driving system, an MCC system, a PLC control system, a bypass control system, a reactive compensation system and a refrigerating system are arranged in the electric control room, the multi-power supply switching power supply system is connected with power supply ends of a grid power supply, an energy-saving generator and an auxiliary generator, a first power supply output end of the multi-power supply switching power supply system is connected with a power supply input end of the variable frequency driving system, a second power supply output end of the multi-power supply switching power supply system is simultaneously connected with power supply input ends of the MCC system, the PLC control system, the reactive compensation system and the refrigerating system, and a control signal output end of the PLC control system is connected with a control signal input end of the.
2. The electric control system of the multi-power-supply mechanical compound drive oil-well rig according to claim 1, characterized in that: the multi-power supply switching power supply system is composed of an incoming line switch cabinet and a power supply switching cabinet, wherein the power supply input end of the incoming line switch cabinet is connected with the power supply ends of the grid power generator, the energy-saving generator and the auxiliary generator, and the power supply output end of the incoming line switch cabinet is connected with the power supply input end of the power supply switching cabinet.
3. The electric control system of the multi-power-supply mechanical compound drive oil-well rig according to claim 2, characterized in that: and a network power inlet frame circuit breaker, an energy-saving generator inlet frame circuit breaker and an auxiliary generator inlet frame circuit breaker are arranged in the inlet switch cabinet.
4. The electric control system of the multi-power-supply mechanical compound drive oil-well rig according to claim 3, characterized in that: four double-power-supply change-over switches with two inlets and one outlet and five copper busbars for wiring are arranged in the power supply switching cabinet, a first input end of a first double-power-supply change-over switch and a first input end of a second double-power-supply change-over switch are connected with an output end of the energy-saving generator inlet wire frame circuit breaker through a second copper busbar, a second input end of the first double-power-supply change-over switch and a second input end of the second double-power-supply change-over switch are connected with an output end of the auxiliary generator inlet wire frame circuit breaker through a third copper busbar, a first input end of a third double-power-supply change-over switch and a first input end of a fourth double-power-supply change-over switch are connected with an output end of the grid generator inlet wire frame circuit breaker through a first copper busbar, an output end of the first double-power-supply change-over switch and a second input end of the third double-power-supply change-over The row is connected, the output end of the third dual-power transfer switch is simultaneously connected with the power supply input ends of the MCC system, the PLC control system, the reactive compensation system and the refrigerating system through a sixth copper busbar, and the output end of the fourth dual-power transfer switch is connected with the power supply input end of the variable-frequency driving system through a seventh copper busbar.
5. The electric control system of the multi-power-supply mechanical compound drive oil-well rig according to claim 4, characterized in that: the variable frequency driving system comprises a rotary table frequency converter and a bit feeding frequency converter, and power input ends of the rotary table frequency converter and the bit feeding frequency converter are connected with an output end of a fourth double-power-supply change-over switch.
6. The electric control system of the multi-power-supply mechanical compound drive oil-well rig according to claim 4, characterized in that: the PLC control system comprises a PLC control cabinet and a driller room PLC console, the output end of the third dual-power change-over switch is connected with the power input end of the PLC control cabinet, the power output end of the PLC control cabinet is electrically connected with the driller room PLC console, and the control signal output end of the driller room PLC console is connected with the control signal input end of the variable-frequency driving system through the bypass control system.
7. The electric control system of the multi-power-supply mechanical compound drive oil-well rig according to claim 1 or 6, characterized in that: the bypass control system consists of a knob switch and a hand wheel potentiometer.
8. The electric control system of the multi-power-supply mechanical compound drive oil-well rig according to claim 4, characterized in that: the MCC system comprises an MCC cabinet and a soft start cabinet, and power input ends of the MCC cabinet and the soft start cabinet are simultaneously connected with the output end of the third dual-power transfer switch.
9. The electric control system of the multi-power-supply mechanical compound drive oil-well rig according to claim 4, characterized in that: the refrigerating system is composed of a plurality of air conditioners.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021628498.3U CN213235031U (en) | 2020-08-07 | 2020-08-07 | Electric control system of multi-power supply mechanical composite drive oil drilling machine |
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| CN202021628498.3U CN213235031U (en) | 2020-08-07 | 2020-08-07 | Electric control system of multi-power supply mechanical composite drive oil drilling machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370245A (en) * | 2021-11-30 | 2022-04-19 | 四川宏华石油设备有限公司 | Continuous pipe operation system and continuous pipe operation construction method |
| WO2023129794A1 (en) * | 2021-12-27 | 2023-07-06 | Nabors Drilling Technologies Usa, Inc. | Energy storage system control |
-
2020
- 2020-08-07 CN CN202021628498.3U patent/CN213235031U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114370245A (en) * | 2021-11-30 | 2022-04-19 | 四川宏华石油设备有限公司 | Continuous pipe operation system and continuous pipe operation construction method |
| WO2023129794A1 (en) * | 2021-12-27 | 2023-07-06 | Nabors Drilling Technologies Usa, Inc. | Energy storage system control |
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