CN108442912A - A kind of low-voltage alternating-current frequency conversion power drive system of fracturing unit truck - Google Patents
A kind of low-voltage alternating-current frequency conversion power drive system of fracturing unit truck Download PDFInfo
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- CN108442912A CN108442912A CN201810184532.3A CN201810184532A CN108442912A CN 108442912 A CN108442912 A CN 108442912A CN 201810184532 A CN201810184532 A CN 201810184532A CN 108442912 A CN108442912 A CN 108442912A
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 31
- 238000006073 displacement reaction Methods 0.000 claims description 21
- 239000012530 fluid Substances 0.000 claims description 8
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- 239000000523 sample Substances 0.000 claims description 6
- 238000004378 air conditioning Methods 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 13
- 238000005086 pumping Methods 0.000 abstract description 12
- 238000012544 monitoring process Methods 0.000 abstract description 10
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 6
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- 239000004744 fabric Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 238000010248 power generation Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/25—Methods for stimulating production
- E21B43/26—Methods for stimulating production by forming crevices or fractures
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M5/4585—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only having a rectifier with controlled elements
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
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- Geochemistry & Mineralogy (AREA)
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Abstract
The present invention discloses a kind of low-voltage alternating-current frequency conversion power drive system of fracturing unit truck, including fracturing unit truck, and frequency converter, interchanger, data acquisition module, embedded PC, variable-frequency motor and fracturing pump are provided on the chassis of fracturing unit truck, and 60 meters of distant places are equipped with long-range PC machine；Built-in PC, long-range PC, data acquisition module are connected to using star-like ether web frame on interchanger.Long-range PC machine is gone on a long journey as master controller tele-control system, and embedded PC is connect with breaker, frequency converter respectively as local controller, and is communicated through interchanger and data acquisition module.The low-voltage alternating-current frequency conversion power drive system of the fracturing unit truck, it occupies little space, automatic pressure testing is can also be achieved simultaneously to operate with dish pumping, improve fracturing work efficiency, maintenance personnel's labor intensity is alleviated, in addition, also having the function of video monitoring fracturing pump or operating area, be conducive to the leakage position for being diagnosed to be fracturing pump in first time, substantially increase stability and the safety of equipment operation.
Description
Technical field
The invention belongs to oil, coal bed gas, shale gas development equipment technical fields, more particularly to a kind of the low of fracturing unit truck
Press AC frequency conversion power drive system.
Background technology
Fracturing unit truck is the important equipment for improving the rate of oil and gas recovery and the indispensable equipment of shale gas exploitation, traditional fracturing unit truck
Fracturing pump is driven through transmission case using diesel engine, pressure break is adjusted by the gear of the rotating speed and transmission case that change diesel engine
The rotating speed of pump, to which finally the discharge capacity of underground fracture liquid is injected in control.Recently as the continuous expansion of shale gas exploitation scale,
The mating diesel engine power of fracturing unit truck is increasing, and what is brought therewith is that fuel consumption increases, cost of winning rises, more serious
The problem of consequence is that discharge is exceeded, pollution atmospheric environment.In order to solve these problems, diesel engine and transmission case are replaced with motor
The scheme for directly driving fracturing pump is increasingly paid attention to, and has started Preliminary Applications.
Electric drive fracturing pump complexes using be all this frequency conversion by the way of high power AC transducer drive motor
Device is in access power grid in use, generating harmonic effect to power grid harmonic electric current in electrical network access point, influencing to access public
Other electrical equipment normal operations of power grid, can also increase the loss of power generation, power transmission and distribution, interfere the even running of power grid, therefore
There are stringent control standard, electric drive pressure break to equip the device that must also have anti-harmonic wave to " harmonic pollution " in the world, and it is current
It is high-voltage frequency converter that the electricity occurred in the market, which drives the mostly of pressure break equipment selection, it mostly uses the even more multiple rectifying of 18 arteries and veins
Mode, harmonic current is small, meets the international standard that harmonic current is no more than 5%, but this frequency converter is integrated with phase-shifting commutation
The volume and weight of transformer, a full set of frequency-conversion drive apparatus is all excessively huge, and making skid-mounted unit has a some superiority, but can not on
In the limited space of fracturing unit truck, it is contemplated that the road transport bad environments in some outlying pressure break well sites, fracturing work need
The mobility strong of transition movement, well site still need a certain number of fracturing unit trucks, if electric drive is using low-voltage variable frequency driving side
Case on the whole can lower the volume and weight that a whole set of pressure break is equipped, and can be placed on fracturing unit truck, but pressure common is big
Power inverter mostly uses 6 arteries and veins rectifications, and harmonic current is much exceeded mostly more than 30%.
In addition, the sealing element in pressure break pump hydraulic end is vulnerable part, in order to replace sealing, it is often necessary to which maintenance personal is beating
Pump shaft is rotated with sledge thick stick after valve opening case lid, manually adjusts plunger position to the clack box other end, such plunger stays after removing valve assembly
Go out sufficient space, could observe or replace at this time the sealing in valve assembly, this operating process is known as " dish pumping ", if pressure break is used
Be five cylinder pumps, this operating process will continue five times, and the labor intensity of dish pumping is big, the time is long, and two people collaboration is needed to match
The maintenance of fracturing pump could be completed by closing；On the other hand, plunger bad seals cause fracturing pump easily caused by high pressure in operation process
Fracturing fluid is set to leak, this leakage does not observe when stopping operation or low pressure, and personnel cannot be close when operations involving high pressure
Observation can not grasp which specific plunger needs replacing sealing.
Invention content
The object of the present invention is to provide a kind of low-voltage alternating-current frequency conversion power drive systems of fracturing unit truck, and it is complete to solve electric drive
System and device is difficult to be laid out the problem on fracturing unit truck because excessive overweight, while can realize that automatic pressure testing is operated with dish pumping, carries
High fracturing work efficiency, alleviates maintenance personnel's labor intensity, also has the function of video monitoring fracturing pump or operating area, the
It is diagnosed to be the leakage position of fracturing pump in one time, improves stability and the safety of equipment operation.
In order to achieve the above object, the technical solution adopted in the present invention is a kind of low-voltage alternating-current variable-frequency electric of fracturing unit truck
Drive system, including fracturing unit truck are provided with frequency converter, interchanger, data acquisition module, embedded on the chassis of the fracturing unit truck
PC machine, long-range PC machine, variable-frequency motor and fracturing pump；The frequency converter is made of rectifier bridge and inverter bridge, and wherein rectifier bridge passes through
Breaker accesses well site power grid, the power end connection of inverter bridge and variable-frequency motor, the shaft of variable-frequency motor and the bent axle of fracturing pump
Connection；The signal output end of the interchanger respectively with the signal input part of embedded PC, the signal input part of long-range PC machine
The signal input part of connection, the control terminal of long-range PC machine and embedded PC connects, the control terminal of embedded PC respectively with it is disconnected
Road device, frequency converter connection, the signal input part of interchanger are connect with data acquisition module；It is arranged in the shaft of the variable-frequency motor
There is speed probe, pressure sensor is provided in the fluid end of the fracturing pump, is respectively provided on multiple plunger axis of fracturing pump
There is box cupling, multiple mounting bases are provided on the inside of the power end of fracturing pump, the surface of each mounting base is both provided with displacement sensor,
Each displacement sensor is used to detect the position of corresponding box cupling, and the speed probe, the pressure sensor, the displacement pass
Sensor is connect with the signal input part of the data acquisition module respectively.
Technical scheme of the present invention also has the characteristics that：
Further include IP Camera, the signal output end of the IP Camera and the signal input part of the interchanger connect
It connects.
Further include electric-controlled house, frequency conversion tank and switch board are provided in the electric-controlled house, the frequency converter is arranged in the change
In frequency cabinet, the switch configuration is in the switch board.
Air-conditioning and temperature sensor, the signal output end of the temperature sensor and the number are provided in the electric-controlled house
It is connected according to the signal input part of acquisition module.
The rectifier bridge is IGBT rectifier bridges.
The mounting base is magnetic force suction base.
The beneficial effects of the invention are as follows：
(1) electric power device total number is few, light-weight, small, convenient for a whole set of frequency converter is arranged in fracturing unit truck
On, overweight the problem of transfiniting is not present in fracturing unit truck after assembly, and can drive powerful pressure break pump motor；
(2) circuit topological structure uses all-controlling power electronics device, wherein input uses controllable PWM rectification circuits, nothing
The multiple rectifying mode that phase-shifting rectifier transformer need to be used, saves space, need not also use Active Power Filter-APF, just
The grid current harmonic of input side can be made to reduce, input current approximate sine wave, input power factor is adjustable, and harmonic distortion is low,
Small on the influence of the power grid quality of input side in this way, system need not also increase additional anti-harmonic device, save cost；
(3) there is automatic " dish pumping " operating mode, for power drive system instead of artificial dish pumping, plunger is easy to adjust, laborsaving province
When, repair inspection pump convenient for user；
(4) fracturing unit truck " pressure testing " feature operation is convenient and efficient, need to only press primary " automatic pressure testing " key, and motor just presses specified add
Speed or specified time rotate to command speed, and after fracturing pump pressure reaches setting value, motor stalls automatically, pressure testing overall process
Execution need not be repeated several times, save the activity duration；
(5) monitoring intelligent, system can monitor and record automatically to operation field after installing video monitoring software, can be by pressing
The triggering of the equipment states alert events such as pump is split, the operation picture of operator is made to automatically switch to video pictures, makes operating personnel the
One time saw the plunger leakage position of the external situation of equipment, especially fracturing pump, targeted when operation finishes inspection pump
The sealing of replacement plunger, while the warning function for having prompt personnel to enter dangerous operation area improves the safety that fracturing unit truck uses
And reliability.
Description of the drawings
Fig. 1 is a kind of structure principle chart of the low-voltage alternating-current frequency conversion power drive system of fracturing unit truck of the present invention；
Fig. 2 be the present invention a kind of fracturing unit truck low-voltage alternating-current frequency conversion power drive system in frequency converter structural schematic diagram；
Fig. 3 be the present invention a kind of fracturing unit truck low-voltage alternating-current frequency conversion power drive system in fracturing pump carry out dish pumping when control
Schematic diagram processed；
Fig. 4 be the present invention a kind of fracturing unit truck low-voltage alternating-current frequency conversion power drive system in fracturing pump control principle drawing.
In figure, 1. power ends, 2. bent axles, 3. mounting bases, 4. displacement sensors, 5. box cuplings, 6. fluid ends, 7. plunger axis.
Specific implementation mode
Technical scheme of the present invention is described in further detail below in conjunction with description of the drawings and specific embodiment.
As shown in Figure 1, a kind of low-voltage alternating-current frequency conversion power drive system of fracturing unit truck of the present invention, is provided with change on chassis vehicle
Frequency device, interchanger, data acquisition module, embedded PC, variable-frequency motor and fracturing pump, remote operation is equipped with remote at farthest 60 meters
Journey PC machine；In conjunction with Fig. 2, the frequency converter is made of rectifier bridge and inverter bridge, and wherein rectifier bridge accesses well site electricity by breaker
The power end of net, inverter bridge and variable-frequency motor connects；As shown in figure 3, in the shaft of variable-frequency motor and the power end 1 of fracturing pump
Bent axle 2 connects；In conjunction with Fig. 4, the built-in PC, long-range PC, data acquisition module are connected to using star-like ether web frame
On interchanger.Long-range PC machine as the long journey of master controller tele-control system, embedded PC as local controller respectively with
Breaker, frequency converter connection, and communicated through interchanger and data acquisition module；It is provided with revolution speed sensing in the shaft of variable-frequency motor
Device is provided with pressure sensor in the fluid end 6 of fracturing pump, box cupling 5, pressure break is both provided on multiple plunger axis 7 of fracturing pump
1 inside of power end of pump is provided with multiple mounting bases 3, and the surface of each mounting base 3 is both provided with displacement sensor 5, Mei Gewei
Displacement sensor 5 is used to detect the position of corresponding box cupling 5, speed probe, pressure sensor, displacement sensor 5 respectively with data
The signal input part of acquisition module connects.
As shown in Figure 1, further including IP Camera, IP Camera is connected by the port of cable and interchanger.
As shown in Figure 1, further including electric-controlled house, frequency conversion tank and switch board are provided in electric-controlled house, frequency converter is arranged in frequency conversion
In cabinet, switch configuration is in switch board.
As shown in Figure 1, air-conditioning and temperature sensor are provided in electric-controlled house, the signal output end and data of temperature sensor
The signal input part of acquisition module connects.
As shown in figure 3, mounting base 3 is magnetic force suction base.
Electric-controlled house, variable-frequency motor, fracturing pump, data collector and network is mainly disposed on the chassis of fracturing unit truck to take the photograph
As head, wherein electric-controlled house is connect with variable-frequency motor with power shielded cable, and the status information of variable-frequency motor and fracturing pump is through signal
Cable accesses electric-controlled house after data collector, and camera accesses electric-controlled house using ethernet line, when well site uses fracturing unit truck,
Breaker is first arranged at the power network wiring of pressure break well site, operating room is arranged before long-range PC machine, operation start that power grid is electric a long way off
Source is introduced to fracturing unit truck electric-controlled house power input socket, fracturing unit truck electric-controlled house communication port Industrial Ethernet electricity through breaker cable
Cable is connected in the indoor long-range PC machine of operation, and after scene confirms safety, operating personnel carry out centralized control, tool using long-range PC
For body include breaker remote switching, pressure testing, adjustings of pressure break discharge capacity, equipment condition monitoring, video monitoring suspicious object, automatically
The fracturing works overall process such as dish pumping has frequency conversion tank and switch board in electric-controlled house, in order to ensure that the heat dissipation of frequency conversion tank, electric-controlled house are also set
There is air-conditioning.
A kind of main circuit of the low-voltage alternating-current frequency conversion power drive system of fracturing unit truck of the present invention uses AC-DC-friendship
The current source type topological structure of stream, the three-phase alternating current of grid side after LC is filtered first rectified bridging at voltage adjustable DC
Electricity transports to variable-frequency motor after inverter bridge exports adjustable three-phase alternating current, and variable-frequency motor drives fracturing pump, wherein in rectifier bridge
Rectifying device be all made of full controlled rectification device.
The present invention a kind of fracturing unit truck low-voltage alternating-current frequency conversion power drive system, fracturing work it is complete need overhaul fracturing pump
When, adjustment pressure break pump plunger position can be automatically performed, and mainly used displacement sensor 4, variable-frequency motor, frequency converter, data and adopted
Collect module, embedded PC and long-range PC machine；Displacement sensor 4 is attached at by strong magnetic force suction base on 1 face of power end, without pair
Power end surfaces, which carry out secondary operation, to fix displacement sensor 4, and when installation pays attention to 4 center line of displacement sensor being aligned
5 flank boss of box cupling on plunger axis 7, variable-frequency motor are connect with power end 1, data acquisition module and displacement sensor 4
It is connected by signal cable, data acquisition module, embedded PC are connected using Ethernet cable, long-range PC machine and built-in PC
Machine also uses ethernet communication to realize remote operation, and when variable-frequency motor rotates, the rotation of 1 inside crankshaft 2 of power end drives plunger axis 7 straight
Line moves back and forth, the box cupling 5 being mechanically connected with plunger axis 7 therewith back and forth closer or far from the displacement sensor 4 at power end 1,
Data acquisition module is transmitted to embedded PC analyzing processing after the displacement signal of displacement sensor 4 is switched to digital signal, judges
Whether plunger axis 7 moves to the position that stopper head can be made to exit 6 valve chamber of fluid end completely, can be to fluid end 6 after exiting in place
Interior sealing is checked or is replaced, and long-range PC machine can realize that remote control operation, embedded PC realize local control operation.
The present invention dish pumping control software flow be：It is pressed on long-range PC operation panels after " dish pumping " key starts, first parameter
It scans whether each key is pressed after initialization, when plunger axis A key pressings, plunger axis location A is set as flag bit, sets variable-frequency electric
Machine tachometer value, 4 position of box cupling displacement sensor of cycle detection plunger axis A, when the plunger position of plunger axis A does not have in place,
Variable-frequency motor is pressed specified rotating speed and is rotated, when plunger axis A plunger positions in place when, displacement sensor 4 sends out signal, and variable-frequency motor stops
Rotation stop is dynamic.
The present invention pressure testing control software flow be：Pressure testing key is pressed to start, after parameter initialization, setting superpressure value and electricity
Machine rotating speed, pressure sensor cycle detection pressure value, when pressure value does not reach superpressure value, variable-frequency motor is turned by specified rotating speed
Dynamic, when reaching superpressure value, motor stalls automatically.Pressure testing process realizes automation, changes previous artificial repeatedly point pressure testing key
The process for repeating pressure testing, saves the activity duration.
The control system of the present invention is mainly by long-range PC machine, interchanger, IP Camera, position sensor 4, revolution speed sensing
Device, temperature sensor, pressure sensor, data acquisition module, embedded PC, frequency converter and breaker.Long-range PC machine with it is embedding
Enter formula PC machine, IP Camera, frequency converter, data acquisition module etc. and ethernet communication is used by interchanger, Ethernet is not
Only transmission of control signals also transmits on-site supervision vision signal.Operation can by the long-range PC machine remote control other than 60 meters,
It can also locally be carried out by embedded PC, controlled device is mainly frequency converter.
A kind of operation principle of low-voltage alternating-current frequency conversion power drive system of fracturing unit truck of the present invention is：
First on main circuit structure, power grid three-phase alternating current becomes direct current after input rectifying, and direct current is through inductor filter
Enter afterwards after inverter bridge inversion and passes through control since input side uses IGBT controllable rectifier bridges as the three-phase alternating current needed
The angle of flow for making each bridge arm IGBT has controlled the DC input voitage of inverter bridge and position claims power factor, and then makes input side
Source current waveform greatly reduces the harmonic current and harmonic voltage aberration rate of grid side close to sine.By changing inversion
The bridge angle of flow namely frequency converter frequency are worth to the controllable three-phase alternating current of Current Voltage, and the rotating speed of variable-frequency motor also changes therewith
Become, the discharge capacity of corresponding fracturing pump also changes therewith, and the row needed for fracturing pump can be obtained by the stepless smooth speed governing of motor
Amount.
Long-range PC machine can all fracturing work contents of remote-control operation, before fracturing work, on inspection after line security, remotely
PC machine remote switching closing of power circuit breaker electric network source, after fracturing work formally starts, long-range PC machine sets superpressure value, works as progress
When pressure testing operates, after pressing pressure testing key, frequency converter receives driving variable-frequency motor rotation fracturing pump after specified tach signal, works as pressure
Variable-frequency motor stalls automatically after reaching superpressure value, and fracturing unit truck pump pressure is maintained at superpressure setting value, and formal operation needs to adjust pressure break
When pumpage, the speed preset signal of long-range PC machine control frequency converter, variable-frequency motor is rotated by given rotating speed, through speed probe
After detecting rotating speed, long-range PC machine calculates corresponding pressure break pumpage, when operation terminates to carry out inspection pump, presses long-range PC machine
" dish pumping " key carries out automatic dish pumping operation, if adjustment plunger axis location A just presses lower axle A keys at this time, axis A displacement sensors detect column
Whether plug exits fluid end valve chamber completely, if exiting completely in place, long-range PC machine, which sends out stalling instruction, makes variable-frequency motor stall, if
That in place, variable-frequency motor is not pressed always setting speed driving fracturing pump plunger axis 7 and is moved back and forth, until position sensor 4 is sent out
Signal in place.Fracturing unit truck local Job Operations may be implemented in embedded PC, but breaker closing can only be by close to power distribution room
Long-range PC machine is operated, to ensure live Electrical Safety.
In entire fracturing process, the IP Camera monitoring site handling situations on fracturing unit truck, the figure in monitoring range
As signal passes to long-range PC machine, long-range PC machine built in video monitoring application software, to pressure break by Ethernet cable and interchanger
Operation field real-time monitoring images carry out digital processing, storage and control, and can be triggered and be alarmed by event, when long-range PC machine exists
When receiving the equipment state alert event that embedded PC on fracturing unit truck detects, automatically by the operation screen in long-range PC machine
Video pictures are switched to, pressure break is diagnosed to be so that operating personnel observe in status of equipment, especially first time at the first time
The leakage position of pump targetedly replaces plunger sealing when operation finishes inspection pump；When software detection arrives in setting regions
When face, long-range PC machine sends out alarm signal automatically, has technically taken precautions against personnel and has entered dangerous operation area, has enhanced fracturing unit truck
The safety used.IP Camera uses POE Power over Ethernet modes, utilizes the power supply Ethernet interface on interchanger, net
Ethernet between network camera and interchanger both transmission video signal or provided power supply for IP Camera, to reduce cloth
Line, video monitoring improve the safety and reliability that fracturing unit truck uses.
The low-voltage alternating-current frequency conversion power drive system of this fracturing unit truck improves the automatization level of fracturing work, is also future
Digital pressure break, that intelligent pressure break provides necessary equipment is basic.
Claims (6)
1. a kind of low-voltage alternating-current frequency conversion power drive system of fracturing unit truck, including chassis vehicle, which is characterized in that set on the chassis vehicle
It is equipped with frequency converter, interchanger, data acquisition module, embedded PC, long-range PC machine, variable-frequency motor and fracturing pump；The frequency conversion
Device is made of rectifier bridge and inverter bridge, and wherein rectifier bridge accesses well site power grid, the electricity of inverter bridge and variable-frequency motor by breaker
Source connects, bent axle (2) connection in the shaft of variable-frequency motor and the power end (1) of fracturing pump；The signal of the interchanger is defeated
Outlet is connect with the signal input part of the signal input part of embedded PC, long-range PC machine respectively, the control terminal of long-range PC machine with
The signal input part of embedded PC connects, and the control terminal of embedded PC is connect with breaker, frequency converter respectively, interchanger
Signal input part is connect with data acquisition module；Speed probe, the fracturing pump are provided in the shaft of the variable-frequency motor
Fluid end (6) in be provided with pressure sensor, be both provided with box cupling (5) on multiple plunger axis (7) of fracturing pump, fracturing pump
Multiple mounting bases (3) are provided on the inside of power end (1), the surface of each mounting base (3) is both provided with displacement sensor (5), often
A displacement sensor (5) is used to detect the position of corresponding box cupling (5), the speed probe, the pressure sensor, institute's rheme
Displacement sensor (5) is connect with the signal input part of the data acquisition module respectively.
2. the low-voltage alternating-current frequency conversion power drive system of fracturing unit truck according to claim 1, which is characterized in that further include network
Camera, the signal output end of the IP Camera are connect with the signal input part of the interchanger.
3. the low-voltage alternating-current frequency conversion power drive system of fracturing unit truck according to claim 1, which is characterized in that further include automatically controlled
Room is provided with frequency conversion tank and switch board in the electric-controlled house, and the frequency converter is arranged in the frequency conversion tank, and the interchanger is set
It sets in the switch board.
4. the low-voltage alternating-current frequency conversion power drive system of fracturing unit truck according to claim 1, which is characterized in that the electric-controlled house
It is inside provided with air-conditioning and temperature sensor, the signal output end of the temperature sensor and the signal of the data acquisition module are defeated
Enter end connection.
5. the low-voltage alternating-current frequency conversion power drive system of fracturing unit truck according to claim 4, which is characterized in that the rectifier bridge
For IGBT rectifier bridges.
6. the low-voltage alternating-current frequency conversion power drive system of fracturing unit truck according to claim 1, which is characterized in that the mounting base
(3) it is magnetic force suction base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810184532.3A CN108442912A (en) | 2018-03-06 | 2018-03-06 | A kind of low-voltage alternating-current frequency conversion power drive system of fracturing unit truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810184532.3A CN108442912A (en) | 2018-03-06 | 2018-03-06 | A kind of low-voltage alternating-current frequency conversion power drive system of fracturing unit truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108442912A true CN108442912A (en) | 2018-08-24 |
Family
ID=63193368
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| CN109882144A (en) * | 2019-04-19 | 2019-06-14 | 烟台杰瑞石油装备技术有限公司 | A kind of two-shipper double pump electricity drive pressure break semitrailer |
| CN110107490A (en) * | 2019-05-30 | 2019-08-09 | 宝鸡石油机械有限责任公司 | Integral type frequency conversion pressure break pumps apparatus control system and control method |
| CN111628691A (en) * | 2020-06-18 | 2020-09-04 | 上海电气集团上海电机厂有限公司 | Modular digital motor system |
| CN112983798A (en) * | 2021-03-25 | 2021-06-18 | 烟台杰瑞石油装备技术有限公司 | Control method and control device applied to electrically-driven fracturing equipment |
| US11702920B1 (en) | 2022-06-24 | 2023-07-18 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Fracturing control method and fracturing system |
| CN117613907A (en) * | 2024-01-24 | 2024-02-27 | 四川宏华电气有限责任公司 | Power grid regulation method and system applied to control of fracturing pump unit |
| 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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| CN110107490B (en) * | 2019-05-30 | 2021-03-02 | 宝鸡石油机械有限责任公司 | Integrated frequency conversion fracturing pumping equipment control system and control method |
| CN111628691A (en) * | 2020-06-18 | 2020-09-04 | 上海电气集团上海电机厂有限公司 | Modular digital motor system |
| CN112983798A (en) * | 2021-03-25 | 2021-06-18 | 烟台杰瑞石油装备技术有限公司 | Control method and control device applied to electrically-driven fracturing equipment |
| CN112983798B (en) * | 2021-03-25 | 2023-02-24 | 烟台杰瑞石油装备技术有限公司 | Control method and control device applied to electrically-driven fracturing equipment |
| US11702920B1 (en) | 2022-06-24 | 2023-07-18 | Yantai Jereh Petroleum Equipment & Technologies Co., Ltd. | Fracturing control method and fracturing system |
| 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 |
| CN117613907A (en) * | 2024-01-24 | 2024-02-27 | 四川宏华电气有限责任公司 | Power grid regulation method and system applied to control of fracturing pump unit |
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Effective date of registration: 20200930 Address after: Baoji City, Shaanxi Province, 721002 Dongfeng Road, Jintai District No. 2 Applicant after: Baoji Oilfield Machinery Co.,Ltd. Applicant after: CHINA NATIONAL PETROLEUM Corp. Applicant after: CNPC national oil and gas drilling equipment Engineering Technology Research Center Co., Ltd Address before: Baoji City, Shaanxi Province, 721002 Dongfeng Road, Jintai District No. 2 Applicant before: Baoji Oilfield Machinery Co.,Ltd. |
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Application publication date: 20180824 |