CN205283188U - Energy -conserving well electricity workover rig electrically controlled device - Google Patents
Energy -conserving well electricity workover rig electrically controlled device Download PDFInfo
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- CN205283188U CN205283188U CN201521092630.2U CN201521092630U CN205283188U CN 205283188 U CN205283188 U CN 205283188U CN 201521092630 U CN201521092630 U CN 201521092630U CN 205283188 U CN205283188 U CN 205283188U
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Abstract
The utility model provides an energy -conserving well electricity workover rig electrically controlled device, the full controlled rectifier ware links to each other with the well site transformer for the invariable direct current of output, the winch dc -to -ac converter links to each other with the dc bus for the operation of drive winch motor, the air compressor machine dc -to -ac converter links to each other with the dc bus for the operation of drive air compressor machine motor, hydraulic pressure station dc -to -ac converter links to each other with the dc bus for the motor operation of drive hydraulic pressure station, supercapacitor set passes through energy storage system access switch and connects on the dc bus, brake resistance passes through brake unit and also connects on the dc bus, and whether brake unit exceedes the threshold value of setting for and decide whether drop into brake resistance according to busbar voltage, PLC control system detects each part real -time operation condition. The utility model discloses utilizing the super capacitor energy storage device to compensate the well site, to provide the electric energy not enough, and the well electricity well workover electrically controlled device of well site transformer electric energy and braking repayment energy is utilized to the high efficiency, reaches energy -conserving effect.
Description
Technical field
This utility model belongs to field of petroleum machinery, is related specifically to workover rig electric control gear.
Background technology
At present, each oil field is carried forward vigorously in the process that electricity drives workover treatment, it is faced with a real problem, the miniature transformer of power is only provided for oil pumper at wellsite, its power bracket is at 30kVA��120kVA not etc., it mostly is 50kVA, the off-capacity that can be provided by is driven the power demand of workover rig normal operation and is namely promoted that tonnage is less or speed is very slow maintaining XJ250 electricity, therefore, part oil field faced with this situation time need for adopt diesel powered to carry out workover treatment, it is impossible to realize energy-saving and emission-reduction consumption reduction purpose. Additionally there are a problem, as grand celebration, this oil field established the city because of oil of triumph, its oil well is almost just in the middle of city, and the operation of diesel engine necessarily brings the pollution of air and noise to nearby residents.
Development along with super capacitor technology, Large Copacity energy storage, fast charging and discharging have turned into reality, utilize energy storage device, on workover rig, shackle and lower pipe process store energy, the energy of its storage is discharged by tubing string lifting process again and makes up the part that well site transformer capacity is not enough, make workover rig utilize well electricity to carry out normal workover treatment.
Conventionally electricity drives the way of workover rig, is directly discharged with the form of heat by braking resistor by braking energy, causes very big waste. Effective combination of two-way DC/DC current transformer and super capacitor, well solves well site transformer capacity not and the problem wasted of braking energy. But super capacitor in charge and discharge process each through the conversion of two-way DC/DC current transformer, efficiency due to two-way DC/DC current transformer about 90%, one fills one puts actually effective energy and only has about 80%, causes the waste of energy equally, it is impossible to give full play to energy-conserving action. It addition, the control of two-way DC/DC current transformer is more complicated, it is necessary to switch the control to super capacitor charge and discharge according to real-time working condition conversion, the real-time controlling system is had higher requirement.
Summary of the invention
The purpose of this utility model is in that to provide one to utilize super capacitor energy storage device to provide electric energy not enough to make up well site, efficiently utilizes the well electricity well workover electric control gear of well site transformator electric energy and feedback braking energy, reaches energy-conservation effect.
For achieving the above object, the technical solution of the utility model is:
A kind of energy saving shaft electricity workover rig electric control gear, including full-controlled rectifier device, single-phase DC/DC current transformer, bank of super capacitors, winch inverter, air compressor machine inverter, Hydraulic Station inverter, brake unit, braking resistor, PLC control system, it is characterized in that: full-controlled rectifier device is connected with well site transformator, for exporting constant unidirectional current, again through single-phase DC/DC current transformer transformation to the DC voltage mated with inverter, and access dc bus; Winch inverter is connected with dc bus, is used for driving winch motor to run; Air compressor machine inverter is connected with dc bus, is used for driving air compressor motor to run; Hydraulic Station inverter is connected with dc bus, is used for driving hydraulic motor to run; Bank of super capacitors accesses switch by energy-storage system and is connected on dc bus, and energy-storage system accesses switch can when bank of super capacitors fault cannot be devoted oneself to work by the whole series energy-storage system and main system off-the-line, and main system carries out dropping appearance and uses; Braking resistor is also connected on dc bus by brake unit, and whether brake unit exceedes the threshold value of setting according to busbar voltage and decide whether to put into braking resistor, with control bus voltage; PLC control system is made up of PLC and long-range active station, for connecting full-controlled rectifier device, single-phase DC/DC current transformer, bank of super capacitors, winch inverter, air compressor machine inverter, Hydraulic Station inverter, run for controlling each parts according to well workover working condition requirement, and detect each parts real time execution situation.
Good effect of the present utility model is:
In this electric control gear, PLC controls and monitors full-controlled rectifier device, unidirectional DC/DC current transformer, bank of super capacitors, winch inverter, air compressor machine inverter, Hydraulic Station inverter etc. in real time, remote control station can complete corresponding control, inquire about relevant parameter and process data, key parameter can also be set according to different operating modes simultaneously. Well site transformator is charged to super capacitor by full-controlled rectifier device and single-phase DC/DC current transformer; But super capacitor is under absorbing the electric energy transferring and braking generation and super capacitor electric discharge operating mode, is the most direct, utilizes efficiently and convert electric energy, reaching good energy-saving effect.
Accompanying drawing explanation
Fig. 1, a kind of novel energy-conserving well electricity workover rig electric control gear topological diagram.
Detailed description of the invention
Detailed description of the invention of the present utility model is further illustrated below in conjunction with accompanying drawing 1.
Referring to accompanying drawing 1, full-controlled rectifier device 3 accesses switch 2 by external power source and is connected with well site transformator 1; The alternating current power supply that well site transformator provides is rectified into smooth unidirectional current by full-controlled rectifier device 3, then passes through single-phase DC/DC current transformer 4 transformation to the DC voltage mated with inverter, is connected on dc bus 5; Winch inverter 8 is connected with dc bus 5, is used for driving winch motor 9 to run; Bank of super capacitors 7 accesses switch 6 by energy-storage system and is connected on dc bus 5; Braking resistor 13 is also connected on dc bus 5 by brake unit 12; Air compressor machine inverter 10 and Hydraulic Station inverter 11 are connected on dc bus 5; PLC 14 is used for connecting full-controlled rectifier device 3, single-phase DC/DC current transformer 3, bank of super capacitors 7, winch inverter 8, air compressor machine inverter 10, Hydraulic Station inverter 11, long-range active station 15.
During workover treatment, the flow direction of electric energy is as follows:
When winch carries out promoting operation, well site transformator provides electric energy to winch with super capacitor simultaneously;
Processing the intermission of tubing string, well site transformator is except powering to stand-by motor, and remaining capacity charges to super capacitor.
When being in braking and transferring operating mode, dc bus 5 voltage can raise, if bus DC voltage is increased to the threshold value that brake unit 10 is opened, braking resistor 11 puts into, and forces control bus voltage;
When being in braking and transferring operating mode, dc bus 5 voltage can raise, but when remaining in below the threshold value that brake unit 10 is opened, energy directly charges to bank of super capacitors 7;
When being in braking and transferring operating mode, voltage on dc bus 5 can raise, but because now air compressor machine inverter 12 and Hydraulic Station inverter 13 hang on dc bus 5, therefore braking and transfer the energy of generation except supply bank of super capacitors 7 is charged, preferential supply air compressor machine and hydraulic motor work;
When bank of super capacitors 7 break down cannot operation time, excise super capacitor energy-storage system, well site transformator 1 powered to winch motor 9 by winch inverter 8, power Emergency use drops in winch motor 9;
When, under well site power failure operating mode, bank of super capacitors 7 can be discharged to air compressor machine inverter 12, Hydraulic Station inverter 13, it is ensured that system emergency works.
PLC control system and full-controlled rectifier device 3, single-phase DC/DC current transformer 4, bank of super capacitors 7, winch inverter 8, air compressor machine inverter 12, Hydraulic Station inverter 13 form bus communication network, system monitor in real time full-controlled rectifier device 3, single-phase DC/DC current transformer 4, bank of super capacitors 7, winch inverter 8, air compressor machine inverter 12, Hydraulic Station inverter 13, the real time data of long-range active station 14 and warning message.
Claims (1)
1. an energy saving shaft electricity workover rig electric control gear, including full-controlled rectifier device (3), single-phase DC/DC current transformer (4), bank of super capacitors (7), winch inverter (8), air compressor machine inverter (12), Hydraulic Station inverter (13), brake unit (10), braking resistor (11), PLC control system, it is characterized in that: full-controlled rectifier device (3) is connected with well site transformator (1), for exporting constant unidirectional current, again through single-phase DC/DC current transformer (4) transformation to the DC voltage mated with inverter, and access dc bus (5); Winch inverter (8) is connected with dc bus (5), is used for driving winch motor (9) to run; Air compressor machine inverter (12) is connected with dc bus (5), is used for driving air compressor motor to run; Hydraulic Station inverter (13) is connected with dc bus (5), is used for driving hydraulic motor to run; Bank of super capacitors (7) accesses switch (6) by energy-storage system and is connected on dc bus (5), energy-storage system accesses switch (6) can when bank of super capacitors (7) fault cannot be devoted oneself to work by the whole series energy-storage system and main system off-the-line, and main system carries out dropping appearance and uses; Braking resistor (11) is also connected on dc bus (5) by brake unit (10), and whether brake unit (10) exceedes the threshold value of setting according to busbar voltage and decide whether to put into braking resistor, with control bus voltage; PLC control system is made up of PLC (14) and long-range active station (15), for connecting full-controlled rectifier device (3), single-phase DC/DC current transformer (4), bank of super capacitors (7), winch inverter (8), air compressor machine inverter (12), Hydraulic Station inverter (13), run for controlling each parts according to well workover working condition requirement, and detect each parts real time execution situation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521092630.2U CN205283188U (en) | 2015-12-25 | 2015-12-25 | Energy -conserving well electricity workover rig electrically controlled device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521092630.2U CN205283188U (en) | 2015-12-25 | 2015-12-25 | Energy -conserving well electricity workover rig electrically controlled device |
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| CN205283188U true CN205283188U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521092630.2U Active CN205283188U (en) | 2015-12-25 | 2015-12-25 | Energy -conserving well electricity workover rig electrically controlled device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947212A (en) * | 2017-12-29 | 2018-04-20 | 西安石油大学 | A kind of energy-storage system and recovery method formed based on ultracapacitor and storage battery |
-
2015
- 2015-12-25 CN CN201521092630.2U patent/CN205283188U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947212A (en) * | 2017-12-29 | 2018-04-20 | 西安石油大学 | A kind of energy-storage system and recovery method formed based on ultracapacitor and storage battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171110 Address after: 434020 No. 1 Longshan Temple Street, Jingzhou District, Jingzhou, Hubei Co-patentee after: SINOPEC OILFIELD EQUIPMENT CORPORATION Patentee after: Four Sinopec Petroleum Machinery Co. Ltd. Address before: 434020 Jingzhou city of Hubei province Jingzhou district four Road No. 1 Patentee before: SJ Petroleum Machinery Co., SINOPEC |
|
| TR01 | Transfer of patent right |