CN1978865A - Smart synergetic controller for oil pump - Google Patents
Smart synergetic controller for oil pump Download PDFInfo
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- CN1978865A CN1978865A CN 200510010581 CN200510010581A CN1978865A CN 1978865 A CN1978865 A CN 1978865A CN 200510010581 CN200510010581 CN 200510010581 CN 200510010581 A CN200510010581 A CN 200510010581A CN 1978865 A CN1978865 A CN 1978865A
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Abstract
The invention relates to pumping unit intelligent multiplier controller. It mainly includes light and strong current parts. Its feature is that dynamic liquid level transducer and polished rod load and displacement transducer are connected with the CPU to realize exact closed-loop control for the pumping well. The light current part includes main control CUP and controlled CPU; the strong current part includes energy feedback, stand by power frequency, and power frequency conversion interlocking parts. The invention can increase pumping well system efficiency, realize its energy saving and consumption reducing, increase both production and income, input-output ratio, and economic benefit, can be suited for oil field electric network specificity and pumping well variability.
Description
Affiliated technical field
The present invention relates to a kind of smart synergetic controller for oil pump, is the high-performance industrial control equipment that a kind of optical, mechanical and electronic integration and electronic information combine, and is mainly used in the smart synergetic control that oil-field oil pumper recovers the oil.
Background technology
Domestic most of oil field all is in the mid-term of exploitation at present, some technology of secondary, tertiary oil recovery has very big drawback, is not that oil reservoir oil is had destructiveness, is exactly self to constitute to pollute, do not meet environmental requirement, that is to say and caused undue exploitation or anxious for success.In fact say, follow the course of nature that some oil well is rationally transferred ginseng, optimum management by GCU, make system be in best running status all the time, guarantee the optimum organization of rod pump, just can reach well gather effect and environmental requirement, realize sustainable development.The so-called accent joined optimization, changes traditional single constant power frequency operation mode of persevering for several years as if it were one day exactly, specifically, mainly is exactly jig frequency number and the stroke speed ratio of rationally adjusting oil pumper, promptly adjusts rotating speed of motor.
Oil pumper has great use amount in the China's oil exploitation, its electric power consumption is very big, and system effectiveness is very low, energy-saving and cost-reducing having a high potential.The development of oil pumper electric control gear can reduce cost of oil production, brings huge economic benefit.The progress of advance oil enterprise equipment can strengthen the ability that oil enterprises in China participates in the international petroleum market competition.Domestic research to the oil pumper control panel is in the ascendant, will promote the progress and the leap in this field.The developing direction of oil pumper electric control gear is the raising system effectiveness, energy-saving effect is obvious, defencive function is complete, adapt to the oil field environmental requirement, improve input-output ratio, and it will be more welcome having the artificial intelligence control appliance that also people-oriented.
Through a large amount of investigating, present domestic several families business research similar techniques of having only, but technology is all fairly simple, mostly be the open loop application of the conversion of star angle, silicon-controlled voltage regulation speed governing or universal frequency converter etc. greatly, oil pumper is not realized closed-loop control, all there is certain technical problem in these methods simultaneously, such as mechanicalness noise being arranged, electrical network being had pollution etc.; Also there is the oil production size of utilizing the well mouth of oil well place to be major parameter, by energy releasing type frequency converter timing, form closed-loop control, because the crude oil gas-liquid mixed of the firm extraction in well head place, constituent is uncertain, add factors such as temperature, pressure and geographical position, not only can't realize accurate metering, even qualitative judgement all do not accomplish, therefore oil pumper realized real closed loop Based Intelligent Control, in addition, this way is to emphasize to increase oil production, system is not comprehensive, and is not objective; Also having with indicator card or producing fluid level is main measurement parameter, artificial participation forms closed-loop control, but equipment complexity, will be with a very big air pump, stube cable and auxiliary equipment are a lot, cause volume very big, need be contained on the test carriage, therefore only limit to individual well test character, can not be used for the On-line Control of oil pumper for a long time, can not form practical bulk article.
In addition, present oil pumper control panel, all there are some general problems: at first, mostly only emphasize that economize on electricity on the one hand, do not consider the optimum organization of subterranean resource and rod pump, do not consider that mechanical wear, pump housing leakage reach the factors such as pollution to electrical network, promptly do not consider the overall system efficiency of rod-pumped well.Secondly, performance all less stable, fault rate height, anti-interference is poor, does not consider the particularity of oilfield electric net and the polytropy of controlled device rod-pumped well, does not have rational electrical design structure.Therefore, present oil pumper control panel practical effect is all not really desirable.
Summary of the invention
The technical problem that solves
Smart synergetic controller for oil pump involved in the present invention, just in this case, above-mentioned various technical problem designs and develops in order to solve.The present invention has caught two most important parameters of decision oil pumper operation, and is core with it, has realized the real closed-loop control of rod-pumped well, has realized accurate control; Considered the optimum organization of rod pump, and will reduce mechanical wear simultaneously, the factors such as supply that reduce pump housing leakage and subterranean resource take into account, and have improved the system effectiveness of rod-pumped well; Solved mechanicalness noise and to the problem of electric network pollution; Realize the organic unity of energy-saving and cost-reducing and increasing both production and income on certain skill level, improved the input-output ratio of pumping unit system, increased the economic benefit in oil field; Accomplished self practicability, commercialization technically, considered the particularity of oilfield electric net and the polytropy of rod-pumped well, adopted rational electrical design structure, stable performance, safe and reliable, fault rate is low, good in anti-interference performance.
Simultaneously, the present invention has realized artificial intelligence, and adheres to the principle that people-oriented, has realized automatic control, can adapt to automatically, safeguards automatically, the automated processing system fault, can realize unmanned.The present invention has also designed the function of information remote-wireless transmission, can realize networking, intensification, visualized management, can realize functions such as remote measuring and controlling, burglar alarm.
Technical scheme
The technical scheme that the present invention is used for the above technical problem of solution is as follows:
The present invention mainly comprises weak current part and strong power part, it is characterized in that: it is connected to core with CPU simultaneously with the producing fluid level sensor of energy on-line measurement well fluid level and the polished rod load and the displacement transducer of energy on-line measurement oil well indicator card, realize the accurate closed-loop control of rod-pumped well, and then realize the smart synergetic function of rod-pumped well.
Key technology of the present invention is two most important parameters having caught the operation of decision oil pumper, be producing fluid level and indicator card, and to these two parameters carried out practical, measure accurately and effectively, simultaneously these two parameters are organically combined, as the main foundation of rod-pumped well closed-loop control.Producing fluid level be the well head of rod-pumped well to the distance of downhole oil laminar surface, it has reflected the fluid supply capacity of oil reservoir to this oil well, can know undergroundly have whether do not have oil and abundance by it; Indicator card is the load of rod-pumped well polished rod and the curve map of its displacement, it has mainly reflected pumping capacity and the working condition of pump and the working condition of whole pumping pipeline of pump, such as whether leakage etc. being arranged, it has reflected to a certain extent also whether the whole dynamo-electric dragging system work of oil pumper is normal simultaneously.Producing fluid level is a prerequisite, promptly has and does not have oil; Indicator card is the basis, promptly whether has possessed good pumping capacity.Known this two parameters, the oil extraction operation system will be very easy to determine, take out, and how take out, and thing is just very clear and definite.Therefore, be the closed-loop system that main parameters is set up with producing fluid level and indicator card, be only rod-pumped well has been realized that real closed loop controls automatically, realized accurate control.
Involved in the present invention to other technology have: frequency control and energy feedback, standby power frequency and worker's frequency conversion interlocking, electric parameter measurement, the operation stop detects the temperature of sleeve pipe and oil pipe and pressure measxurement, man-machine interface, the data storage, fault and burglar alarm, wired and wireless telecommunications, system is from adjusting etc.These technology all are to cooperate producing fluid level and these two parameters of indicator card, and in order better to realize the real closed-loop control of rod-pumped well, they also are the requisite parts of The whole control system.
Of the present invention whole constitute be divided into four parts, they are: 1. master cpu part (CPU_1), 2. from control CPU part (CPU_2), 3. frequency conversion and energy feedback part, 4. standby power frequency and worker's frequency conversion interlocking portions.Wherein 1. 2. be control section again, or weak current part; 3. 4. cry power section again, or strong power part.How the primary structure, function, annexation of narration each several part and they solve the problems of the technologies described above below.
The master cpu part, it is the CPU_1 part, it is core control section of the present invention, it is that 8 high-performance C8051F020 single-chip microcomputer is a core with 16 of a kernels, data/address bus, formed a computer operation system, this single-chip microcomputer is that U.S. Cygnal company produces, and internal resource is abundant, ROM, the I of RAM, the 64K of integrated AD, DA, PWM, 6 IO mouths, 4K
2Functional resources such as C bus, house dog, reliable and stable, good in anti-interference performance.Master cpu comprises that partly man-machine interface, pin-saving chip, fault and the burglar alarm of electric parameter measurement sensor and transducing unit, operation stop detecting sensor, LCD LCD and keyboard input, wired and wireless communication apparatus, system environments humiture are from other device such as adjusting.Be subjected to master cpu control or having of being attached thereto: by 8 parallel-by-bit data/address bus with link to each other from control portion C PU_2, mainly be the control command of sending from control CPU_2 and the data of accepting the CPU_2 submission, such as sending the order of when measuring which kind of data and accepting producing fluid level and the data of indicator card and conclusion etc.; Master cpu is by the PWM interface, link to each other with frequency conversion partial C PU_3 through photoelectrical coupler, issue the converter unit analog signals, the speed governing parameter that is used for converting operation, isolate by relay simultaneously and link to each other with frequency conversion partial C PU_3, issue converter unit switching value control command, using photoelectrical coupler and relay is to isolate for signal, avoids the phase mutual interference; Master cpu links to each other with the transducing unit of electric parameter measurement sensor, the power consumption parameter of system is analyzed constantly and monitored, directly handle electrical quantity with master cpu, its purpose is and can in time judges the electricity consumption situation, can deal with rapidly to abnormal conditions, guarantee the electrical safety of rod-pumped well; Master cpu links to each other with operation stop detecting sensor, the one, adjust the reference of the oil pumper speed of service, the 2nd, in order to monitor the mechanical movement state of oil pumper constantly, its purpose is and can in time judges the mechanical movement situation, can deal with rapidly to abnormal conditions, guarantee the machine security of rod-pumped well, the stop detecting sensor is selected the magnet proximity switch mode of Hall effect for use, be installed in the balance weight place of oil pumper, or select the mode of acceleration equivalence for use, be installed in the horse head place of oil pumper; Master cpu links to each other with man-machine interface, mainly is to be used for the setting of systematic parameter and the input and output of user profile, and input unit is 5 of 5 of horizontally-arrangeds and vertical setting of types totally 10 buttons, and output device is 320 * 240 Chinese character dot matrix LCD; Master cpu links to each other with pin-saving chip, mainly is the preservation to user data, and this function is by I
2The E of C bus
2PROM nonvolatile memory 24WC256 finishes, or by the E of parallel bus
2PROM nonvolatile memory 29C040 finishes; Fault and burglar alarm link to each other with master cpu, are controlled by master cpu, send the remote alarms signal when unusual; Wired and wireless communication apparatus links to each other with master cpu, finishes control system and outside communication, and wire communication is finished with the MAX232/485 interface, and wireless telecommunications are finished with GSM/GPRS mobile communication network or microwave communication; The ambient temperature and humidity checkout gear links to each other with master cpu, the foundation of be used for the reference of survey data compensation and system self-adaption, adjusting certainly.The embedded expert system software of the built-in cover of master cpu, use the C Programming with Pascal Language fully, its major function is to be the core parameter with producing fluid level and indicator card, and with the two combination, be auxiliary parameter with other parameter simultaneously, realized artificial intelligence, set up and realize the closed loop control method and the Mathematical Modeling of rod-pumped well, rod-pumped well is realized real closed-loop control, expert system software is with the optimum organization of rod pump and subterranean resource, the organic unity of energy-saving and cost-reducing and increasing both production and income, the particularity of oilfield electric net and the factors such as polytropy of rod-pumped well have all been considered, in a word, the realization of the nearly all function of the present invention all is to be controlled by the built-in expert system software of master cpu to finish.
From control CPU part, promptly the CPU_2 part is that the signal of major control parameter of the present invention is got collection and processing section, and it is the computer operation system that core is formed by a high-performance single-chip microcomputer also, as C8051F020.CPU partly comprises producing fluid level sensor and the control and the transducing unit that are attached thereto from control, polished rod load and displacement transducer and the control and the transducing unit that are attached thereto, the temperature of sleeve pipe and oil pipe and pressure sensor and the transducing unit that is attached thereto.Be subjected to from having that control CPU controls or is attached thereto: at first, it links to each other with master cpu _ 1, is controlled by master cpu _ 1, finishes information and exchanges data with master cpu _ 1; CPU links to each other with transducing unit with the control of producing fluid level sensor by the MAX232/485 interface from control, finish measurement control to producing fluid level, and filter out the numerical value of producing fluid level according to feedback signal, perhaps carry out exchanges data with the control and the transducing unit of producing fluid level sensor wirelessly from control CPU; CPU links to each other with transducing unit with the control of polished rod load and displacement transducer from control, send measurement control order, receive and handle polished rod load and displacement signal, with graphical data, make indicator card, and the numerical value of extraction characteristic point, submit to master cpu _ 1, the general merit map sensor of TD01G series that polished rod load and displacement transducer can select for use the world, Shenyang computer Co., Ltd to manufacture and design, this sensor melts load sensor and displacement transducer in one, and can realize the data wireless transmission, promptly the general merit map sensor of TDO1G series can carry out exchanges data with wireless mode and from control CPU; CPU also links to each other with the temperature of sleeve pipe and oil pipe and the transducing unit of pressure sensor from control, measures the temperature and the pressure of sleeve pipe and oil pipe.From the built-in cover embedded application software of control CPU, use the C Programming with Pascal Language fully, its main task is the on-line measurement producing fluid level, the relevant data of indicator card and temperature, pressure, and constantly data are carried out analytical calculation, provide the producing fluid level of rod-pumped well, load, pump efficiency, the situation of change of temperature and pressure etc., the producing fluid level of fast resolving producing well, the Changing Pattern of indicator card, and with relevant data and conclusion promptly and accurately submit to master cpu _ 1, in a word, key data of the present invention get collection, demarcate, integrating and submit to, all is by finishing from the built-in application software of control CPU.
Frequency conversion and energy feedback part, belong to power electricity part of the present invention, also be the forceful electric power core, the component unit that is comprised and successively annexation be total air switch, input AC contactor, reactor, converter unit, output AC contactor, also comprise energy feedback unit in addition.The front end of converter unit links to each other with reactor, simultaneously with energy feedback unit mutually and connect, the rear end of converter unit links to each other with the output AC contactor.It is in order to have filtered higher hamonic wave, to have avoided the pollution to electrical network that the converter unit front end adds reactor.
Standby power frequency and worker's frequency conversion interlocking portions also belong to power of the present invention electricity part, the parts that comprised and successively annexation be total air switch, the industrial frequency AC contactor.Total air switch of total air switch here and frequency conversion and energy feedback part refers to one, promptly is in parallel shared.The output AC contactor of industrial frequency AC contactor and frequency conversion and energy feedback part has been by having realized interlocked relationship in the control coil that mutually normally closed auxiliary contact is sealed in the other side, i.e. both adhesives simultaneously, and both output connects together again, external motor.In the power frequency loop passive comprehensive protector of motor is housed simultaneously.
More than four parts are organic wholes, under the core control of master cpu central processing unit, finish all functions of the present invention jointly, except relevant several external sensors and signal, they are assembled in the main frame power distribution cabinet casing of a reasonable in design, leave the external signal the expanded interface of external sensor interface and standard in the case, as the RS232/485 interface.
Below how the several major technique links in the technical solution of the present invention are realized, further be illustrated.
Producing fluid level checkout gear of the present invention is with at present existing different fully, the method of the large-scale air pump test of the usefulness that present existing producing fluid level detection technique is mentioned in background technology of the present invention, also has test mode by big gun rifle echo, but the method also can only can not be used for online dynamic control by artificial participation single measurement.Producing fluid level sensor involved in the present invention comprises signal transmitter, processing unit is sent in receiving system and control and change, it is 90 millimeters that this three is arranged on an internal diameter, length is 360 millimeters, wall thickness is in 10 millimeters the circular airtight tube chamber, receiving system is arranged on the front of circular tube chamber, the end of circular tube chamber front is provided with the conical pipe rib-loop, can with closely be connected the communicating pipe of oil well casing by the conical pipe rib-loop, signal transmitter is arranged on the centre of circular tube chamber, control send processing unit to be arranged on the back of circular tube chamber with change, signal transmitter send processing unit to link to each other with the control change with receiving system respectively by cable, control send processing unit to link to each other with CPU_2 by cable with change, carry out exchanges data with RS232/485 communication interface and CPU_2, perhaps carry out exchanges data with CPU_2 wirelessly, this moment, this device must be provided with battery and wireless receiving and dispatching antenna.Receiving system is exactly general microphone, and the microphone that uses with big gun rifle echo method of testing is the same, and its function is that the voice signal that will receive converts the signal of telecommunication to.It is to control the signal transmitter sender and amplify the device of handling the microphone feedback signal of telecommunication that control is sent processing unit with change, and gives CPU_2 with final signal.The realization of signal transmitter has two kinds of methods, and a kind of is high pressure gas explosion method, and a kind of is electrion process.High pressure gas explosion ratio juris is, gas in the airtight cylinder body is boosted to pressure about 5MPa, discharge rapidly being no more than in time of 0.5 millisecond then, the sound that it sent, can propagate into 2000 meters with interior well fluid level, and its back wave can be received the device microphone and receive, and the signal transmitter of high pressure gas explosion method can select a kind of special miniature electric air pump to realize that Ruian, Zhejiang gold drum Auto Electric Co., Ltd can design and produce; The electrion ratio juris is, with the following low tension of 220V is power supply, it is raised to certain high pressure by booster circuit, be added on the suitable special electrode of two spacings, by certain control device, with the discharge rapidly in 0.1 millisecond of this high pressure, the sound that it sent, can propagate into 2000 meters with interior well fluid level, and its back wave can be received the device microphone and receive, and the signal transmitter of electrion process is made of several parts such as low-tension supply, booster circuit, sparking electrode and control device.
Frequency conversion operating principle of the present invention is the same substantially with traditional universal frequency converter, also be to adopt the principle of handing over orthogonal, difference of the present invention is after the back level becomes interchange, not only can frequency conversion, can also be to realize that by the way that changes the pulsewidth modulation degree of depth frequency conversion can make oil pumper low speed soft start according to the variation pressure regulation of load, the starting current of motor is reduced by 3～5 times, overcome the current surge phenomenon when starting; Energy back feed device of the present invention is that the present invention is distinctive, the common converter technique that tradition is used for oil pumper all is energy bleed off formulas, it promptly is mode by the high-power resistance discharge, the pump of direct current brachium pontis rises energy dissipating in vain during with the electric power generation state, and the present invention feeds back to electrical network, regeneration with this part energy through effectively handling.
Main frame power distribution cabinet casing of the present invention, adopt movable hierarchy, strong and weak electricity separates, and concrete structure is, it is two-layer before and after whole box body is divided into, the back layer is fixed, and the forceful electric power device is installed, and anterior layer is movable, with a side is axle, can be as a door freely openable, anterior layer is installed the light current device, and is continuous with control cables between two-layer.The advantage of this structure is: (1) is convenient to isolate and shielding, and motherboard can add radome easily, has greatly reduced the inside and outside electromagnetic interference of system, has improved stability; (2) be convenient to wiring, make cabling more reasonable; (3) be convenient to prevent dust, protection against the tide; (4) be convenient to production and assembly and maintenance and repair; (5) make complete machine structure compactness, miniaturization more, be convenient to transportation, install, debug.The traditional power distribution cabinet that is used for oil pumper control all is a single layer structure, has problems such as being not easy to maintenance, and does not possess above-mentioned advantage.
Beneficial effect
The present invention compares with traditional oil pumper power distribution cabinet, and its beneficial effect is as follows:
The present invention has realized the real closed-loop control of rod-pumped well, has realized accurate control, has improved the system effectiveness of rod-pumped well; Realize the organic unity of the energy-saving and cost-reducing and increasing both production and income of pumping well system, improved the input-output ratio of pumping well system, increased the economic benefit in oil field; Adapted to the particularity of oilfield electric net and the polytropy of rod-pumped well, stable performance, safe and reliable, fault rate is low, good in anti-interference performance, do not have mechanicalness noise, electrical network is not polluted.
Concrete advantage of the present invention is: improved the electric power factor of system, meritorious and reactive power has substantial degradation under some operating mode; The jig frequency number can be adjusted continuously, has solved for a long time oil pumper and has transferred the difficult problem of ginseng, and can control rate of pumping arbitrarily to oil pumper stepless speed regulation, and needn't change plant equipment such as belt pulley; Stroke speed is than adjustable, can be adjusted to fast slow down or on fast down slowly, improved the degree of filling of the pump of different oil, reduced pump housing leakage; Realize soft start, the starting current of motor has been reduced by 3～5 times, overcome the current surge phenomenon when starting, protected motor and plant equipment effectively, prolonged their application life greatly; Realize soft dragging, the running current of motor has been reduced by 1～2 times, made the overall operation of oil pumper become a flexible process, reduced anomalies such as resolving bar, dropout, stuck, belt creep, prolonged pump detection period, effectively reduced the workover treatment number of times; Solved the problem of " low load with strong power ", can change the little one grade motor of power with a bite oil well and drag, reduced owing to wasting that motor copper loss, iron loss cause.
In addition, the also concrete following advantage of the present invention: human oriented design, friendly man-machine interface, LCD liquid crystal Chinese shows, and is simple to operate, easy to use, can adapt to automatically, safeguard automatically, the automated processing system fault, can realize unmanned, established technical foundation for the oil field promotes managerial skills; Multiple protective, electrical characteristic meets national safety standard; Adapt to widely, can control the oil pumper of various complex working conditions; Modern design, intelligent degree height; Theftproof performance is good, and is safe and reliable.
Description of drawings
Fig. 1 is a system principle diagram of the present invention.
Fig. 2 (a), Fig. 2 (b), Fig. 2 (c), 2 (d), Fig. 2 (e), Fig. 2 (f) are the exploded views of the circuit theory diagrams of master cpu part of the present invention.
Fig. 3 is the circuit theory diagrams of the present invention from control CPU part.
Fig. 4 is the electrical schematic diagram of strong power part of the present invention, i.e. the major loop schematic diagram of power electricity.
Fig. 5 is worker's frequency conversion interlocking principle figure of strong power part of the present invention.
Fig. 6 is the composition structural representation of producing fluid level sensor of the present invention, among the figure: conical pipe rib-loop 1, circular tube chamber 2, signal transmitter 3, receiving system 4, control and signal processing circuit 5, control cables 6, stube cable 7.
Fig. 7 is the structural representation of the electrion process of producing fluid level sensor signal transmitter of the present invention, among the figure: airtight cylinder body 1, capacitor group 2, control device 3, power resistance row 4, sparking electrode 5, dead ring 6, power supply and control cables 7, discharge cable 8.
Fig. 8 is the booster circuit schematic diagram of producing fluid level sensor signal transmitter electrion process of the present invention.
Fig. 9 is the control of producing fluid level sensor of the present invention and the circuit theory diagrams that signal is handled.
Figure 10 is main frame power distribution cabinet body structure of the present invention and traditional power distribution cabinet structure comparison diagram, among the figure: Qianmen 1, back door 2, forceful electric power device link plate 3, light current device link plate 4, forceful electric power device 5, light current device 6, man-machine interface 7, external connection terminal row 8, strong and weak electricity connector row 9, strong and weak electricity device link plate 10, strong and weak electricity device 11.
The specific embodiment
The present invention will be further described below in conjunction with drawings and Examples.
Fig. 2 (a)～Fig. 2 (f) is the exploded view of the circuit theory diagrams of master cpu part of the present invention.In Fig. 2 (a), IC1 is a master cpu, i.e. single-chip microcomputer C8051F020 or C8051F022, this two single-chip microcomputer are that U.S. Cygnal company produces, and 16 of kernels, data/address bus are 8, ROM, the I of RAM, the 64K of integrated AD, DA, PWM, 6 IO mouths, 4K
2Functions such as C bus, house dog, internal resource is abundant, and is reliable and stable, good in anti-interference performance, IC2 is the chip that resets of CPU, finished by IMP809S, J1 is and the parallel data bus line and the control interface that link to each other from control CPU that J2 is 320 * 240 Chinese character dot matrix LCD interface, draw resistance row on the RAl parallel data bus line, IC3 is pin-saving chip 24WC256, corresponding the linking to each other of P0.2, P0.3 of its SDA, SCL pin and CPU, passes through I
2C bus protocol and CPU realize exchanges data, finish preservation to user data, J3 is 2 * 5 keyboard interfaces, realize 10 keypress functions, J4 is the PWM interface, PU_3 links to each other with the frequency conversion partial C, issue the converter unit analog signals, the speed governing parameter that is used for converting operation, JTAG is emulation and the DLL of CPU, in order to realize the in-circuit emulation debugging and the download of CPU embedded program, TXO in Fig. 2 (a), RXO, SPI-CS, SPI-SCLK, SPI-DIN, SPI-DOUT, SPI-RST, SPI-SIG, IO-1, IO-2, IO-3, IO-4, P1.7, P2.0, P2.1, P2.2, P2.3, P2.4 be with other exploded view in the network label that links to each other of relevant device, TXO wherein, RXO links to each other with MAX232A, realize serial communication, SPI-CS, SPI-SCLK, SPI-DIN, SPI-DOUT, SPI-RST, SPI-SIG links to each other with ATT7022, realize electric parameter measurement, P1.7, P2.0 links to each other with the dead-centre position sensor, the realization dead-centre position detects, IO-1, IO-2, IO-3, IO-4, P2.1, P2.2, P2.3, P24 links to each other with input/output interface, realizes the IO input and output of switching value; In Fig. 2 (b), IC5 is electrical measurement integrated chip ATT7022, it melts functions such as electric quantity monitoring and power transfer is one, can realize electric parameter measurement requirement of the present invention, J5 is the current transformer input interface of three-phase electricity, J6 is the voltage sensor input interface of three-phase electricity, and SPI-CS, SPI-SCLK, SPI-DIN, SPI-DOUT, SPI-RST, SPI-SIG are the spi bus interface, links to each other with CPU and realizes exchanges data; In Fig. 2 (c), J7 is an input interface, realizes the input of switching value, and P2.1, P2.2, P2.3, P2.4 link to each other with CPU, and there is photoelectric coupler isolation the centre; In Fig. 2 (d), J8, J9, J10, J11 are output interface, realize the relay output of switching value, and IO-1, IO-2, IO-3, IO-4 link to each other with CPU, and there is photoelectric coupler isolation the centre; In Fig. 2 (e), IC6 is serial port communication chip MAX232A, and TXO, RXO link to each other with CPU, and J12 is the RS232 serial line interface, links to each other with the outside; In Fig. 2 (f), J13, J14 are the last bottom dead center position sensor interface of oil pumper operation, and P1.7, P2.0 link to each other with CPU, and there is photoelectric coupler isolation the centre.More than realize legend for the circuit of master cpu of the present invention part, function associated substantially therein, as for the relevant portion that connects outward with choose reasonable or making as requested.
Fig. 3 is the circuit theory diagrams of the present invention from control CPU part.Among the figure, IC7 is from control CPU, be single-chip microcomputer C8051F020 or C8051F022, IC11 is the chip that resets of CPU, finished by IMP809S, J15 is parallel data bus line and the control interface that links to each other with master cpu, and IC8 is pin-saving chip 24WC256, corresponding the linking to each other of P0.2, P0.3 of its SDA, SCL pin and CPU, pass through I
2C bus protocol and CPU realize exchanges data; finish preservation to relevant data; IC9 is serial port communication chip MAX232A; J19 is the RS232 serial line interface; link to each other with polished rod load and displacement transducer; realize the measurement of indicator card; IC10 is serial port communication chip MAX485; J17 is the RS485 serial line interface; link to each other with the producing fluid level sensor; realize the measurement of producing fluid level, what will carry here is, J17 and J19 be the RS232/485 translation interface of external standard according to actual needs all; when changing as the distance of distance; J18 is the AD interface of 8 tunnel analog quantitys conversion; the measurement of temperature and pressure etc. is all finished by this interface, and all there is voltage-regulator diode protection on every road, and J16 is a way switch amount input interface; J20 is a way switch amount relay output interface; this two interface is a spare interface, and JTAG is emulation and the DLL of CPU, in order to realize the in-circuit emulation debugging and the download of CPU embedded program.More than for the present invention realizes legend from the circuit of control CPU part, function associated substantially therein, as for the relevant portion that connects outward with choose reasonable or making as requested.
Fig. 4 is the electrical schematic diagram of strong power part of the present invention, it is the major loop schematic diagram of power electricity, among the figure, the frequency conversion major loop reaches successively, and annexation is Input terminal block Pin, total air switch MC1, frequency conversion input AC contactor KM1, reactor EMC, converter unit BPD, frequency conversion output AC contactor KM3, lead-out terminal row Pout, the interchange end of energy feedback unit NLD is corresponding continuous with the input (R, S, T) of converter unit BPD in addition, and DC terminal (DC+, DC-) is corresponding continuous with the direct current brachium pontis (P, N) of converter unit BPD; The power frequency major loop and successively annexation be Input terminal block Pin, total air switch MC1, industrial frequency AC contactor KM2, comprehensive protector of motor FR, lead-out terminal row Pout, wherein Input terminal block Pin, total air switch MC1, lead-out terminal row Pout are shared with the frequency conversion loop.Pin is an Input terminal block, connects power supply, and Pout is lead-out terminal row, connects motor.
Fig. 5 is worker's frequency conversion interlocking principle figure of strong power part of the present invention.Among the figure, sealed in the normally closed auxiliary contact KM3-1 of frequency conversion output AC contactor KM3 in the coil control circuit of industrial frequency AC contactor KM2, as long as frequency conversion output AC contactor KM3 adhesive, normally closed auxiliary contact KM3-1 will open, and industrial frequency AC contactor KM2 can not adhesive; In like manner, sealed in the normally closed auxiliary contact KM2-1 of KM2 in the coil control circuit of frequency conversion output AC contactor KM3, as long as industrial frequency AC contactor KM2 adhesive, normally closed auxiliary contact KM2-1 will open, frequency conversion output AC contactor KM3 can not adhesive, be that the two has realized interlocked relationship, the realization of this interlocked relationship, its purpose one is to have guaranteed that converter unit can not be reversed to power up, because oppositely powering up, converter unit will be damaged, its purpose two is to have guaranteed that worker's frequency conversion can not start simultaneously, has guaranteed the security of operation of pumping unit system.Among the figure, frequency conversion input AC contactor KM1 has also realized interlocked relationship with industrial frequency AC contactor KM2, and converter unit does not power up when having guaranteed without converting operation, has not only saved electric energy, has protected converter unit yet.Among the figure, KT1-1, KT1-2 are the constant open contacts of the time delays relay of variable frequency control, KT2-1 is the constant open contact of the time delays relay of power frequency control, adds time time-delay relay time-delay, is to switch for fear of worker's frequency conversion race and hazard phenomenon takes place when starting.Among the figure, YZ1, YZ2, YZ3 are excess voltage suppressors, and effect is to suppress the A.C. contactor break-make surge current of moment, and purpose is to avoid the damage of ac contactor coil and to the electromagnetic interference of outside.
Fig. 6 is the composition structural representation of producing fluid level sensor of the present invention, among the figure: circular tube chamber 2 is that an internal diameter is 90 millimeters, length is 360 millimeters, wall thickness is 10 millimeters a seamless round steel pipe, all parts of producing fluid level sensor are just in this circular tube chamber, conical pipe rib-loop 1 is processed in the end of circular tube chamber 2 fronts, can with closely be connected the communicating pipe of oil well casing by conical pipe rib-loop 1, receiving system 4 is arranged on the front of circular tube chamber, signal transmitter 3 is arranged on the centre of circular tube chamber, control and signal processing circuit 5 are arranged on the back of circular tube chamber, signal transmitter 3 links to each other with control and signal processing circuit 5 respectively by control cables 6 with receiving system 4, control and signal processing circuit 5 link to each other with CPU_2 by stube cable 7, carry out exchanges data with RS232/485 communication interface and CPU_2, perhaps carry out exchanges data with CPU_2 wirelessly, this moment, this producing fluid level sensor must be provided with battery and wireless receiving and dispatching antenna.Receiving system 4 is exactly general microphone, and the microphone that uses with big gun rifle echo method of testing is the same, and its function is that the voice signal that will receive converts the signal of telecommunication to.Control and signal processing circuit 5 are control signal transmitter senders and amplify the device of handling the microphone feedback signal of telecommunication, and give CPU_2 with final signal.
Fig. 7 is the structural representation of the electrion process of producing fluid level sensor signal transmitter of the present invention, among the figure: be provided with boost element and control device 3 such as capacitor group 2 and power resistance row 4 in the airtight cylinder body 1, capacitor group 2 and power resistance row 4 grades are boosted element by boosting principle permutation and combination and being connected, control by control device 3, be connected with sparking electrode 5 through discharge cable 8, sparking electrode 5 stretches out outside airtight cylinder body 1 by dead ring 6, sparking electrode 5 is two, be the two poles of the earth, the tip end surface at the two poles of the earth is made by resistance to oxidation heavy metals such as silver or gold, the spacing at the two poles of the earth is within 10 millimeters, this signal transmitter links to each other with the control and the signal processing circuit of producing fluid level sensor by power supply and control cables 7, provides low-tension supply and control command by the control and the signal processing circuit of producing fluid level sensor for it.
Fig. 8 is the booster circuit schematic diagram example of the electrion process of producing fluid level sensor signal transmitter of the present invention.In the drawings, T is a power transformer, and V is a diode, r, R, r
f, r
tFor discharging and recharging resistance, C1, C2 ... the Cn charging capacitor, g
1, g
2G
nBe charge switch, F is a sparking electrode, and this circuit has used the principle of stacking in the Circuit theory to boost step by step, reaches the requirement of discharge sounding.
Fig. 9 is the control of producing fluid level sensor of the present invention and the circuit theory diagrams that signal is handled.In the drawings, IC1 is a central processor CPU, finish by P89C51RA, but P89C51RA has the non-volatile FLASH program storage of multiple programming, can realize serial in-system programming (ISP) and programming (IAP) in application, be 8 8-digit microcontrollers that adopt advanced CMOS technology to make, resource in the systems such as 4 groups of 8 I/O mouths, 3 16 bit timings/counters, multiple interrupt source, 1 enhancement mode UART, sheet internal oscillator is arranged; IC2 is the cpu reset chip, is realized by IMP810; IC3 is the AD conversion chip, is finished by TLC1543; IC4 is serial port communication chip MAX232A; IC5, IC6, IC7, IC8 are operational amplifier, realize modulation, amplification and the filter function of the microphone signal of telecommunication, and wherein IC5, IC6 are OP27, and IC7, IC8 are OP37; J1 is the input interface of environment temperature sensor, J2 is the input interface of the microphone signal of telecommunication, J3 is the input interface of a way switch amount, J4 is the relay output interface of a way switch amount, J3, J4 can realize the control that the producing fluid level sensor detects, and J5 is the RS232 serial line interface, realize producing fluid level sensor and linking to each other from control CPU, J5 is the RS232/485 translation interface of external standard according to actual needs, to increase the transmission range of signal.
Figure 10 is main frame power distribution cabinet body structure of the present invention and traditional power distribution cabinet structure comparison diagram, and in the drawings, traditional power distribution cabinet is a single layer structure, and strong and weak electricity device 11 is installed together, and is installed on the strong and weak electricity device link plate 10; And the present invention is two-layer before and after power distribution cabinet is divided into, anterior layer has light current device link plate 4, light current device 6, man-machine interface 7, the back layer has forceful electric power device link plate 3, forceful electric power device 5, external connection terminal row 8, and front and back are two-layer to link to each other by strong and weak electricity connector row 9, can bring many advantages like this.
About concrete enforcement of the present invention, what need supplementary notes is, the converter unit that relates to is optional parts, and the CPU_3 that relates to is the central processor CPU of converter unit, the energy feedback unit that relates to also is optional parts, and the CPU_4 that relates to is the central processor CPU of energy feedback unit.
Claims (8)
1, a kind of smart synergetic controller for oil pump, mainly comprise weak current part and strong power part, it is characterized in that: it is connected to core with CPU simultaneously with the producing fluid level sensor of energy on-line measurement well fluid level and the polished rod load and the displacement transducer of energy on-line measurement oil well indicator card, realize the accurate closed-loop control of rod-pumped well, and then realize the smart synergetic function of rod-pumped well.
2, smart synergetic controller for oil pump according to claim 1, it is characterized in that: described weak current part comprises master cpu part and from control CPU part, master cpu partly comprises electric parameter measurement sensor and transducing unit, operation stop detecting sensor, the man-machine interface of LCD LCD and keyboard input, pin-saving chip, fault and burglar alarm, wired and wireless communication apparatus, the system environments humiture waits other device from adjusting, they all link to each other with master cpu, simultaneously master cpu by data/address bus with link to each other from control CPU, partly link to each other with the frequency conversion and the energy feedback of strong power part with digital channel by simulation, the embedded expert system software of the built-in cover of master cpu is in order to realize control function of the present invention; Partly comprise the temperature of producing fluid level sensor and the control that is attached thereto and transducing unit, polished rod load and displacement transducer and the control that is attached thereto and transducing unit, sleeve pipe and oil pipe and pressure sensor and the transducing unit that is attached thereto from control CPU, their control all with from control CPU links to each other with transducing unit, from the built-in cover embedded application software of control CPU, get collection, demarcations, integration and submission in order to what finish key data.
3, smart synergetic controller for oil pump according to claim 1, it is characterized in that: described strong power part comprises frequency conversion and energy feedback part and standby power frequency and worker's frequency conversion interlocking portions, the component unit that frequency conversion and energy feedback part are comprised reaches successively, and annexation is total air switch, input AC contactor, reactor, converter unit, output AC contactor, also comprise energy feedback unit in addition, the front end of converter unit links to each other with reactor, simultaneously with energy feedback unit mutually and connect, the rear end of converter unit links to each other with the output AC contactor; The parts that standby power frequency and worker's frequency conversion interlocking portions are comprised reach successively, and annexation is total air switch; the industrial frequency AC contactor; total air switch of total air switch here and frequency conversion and energy feedback part refers to one; promptly be in parallel shared; the output AC contactor of industrial frequency AC contactor and frequency conversion and energy feedback part is equipped with passive comprehensive protector of motor in the power frequency loop simultaneously by having realized interlocked relationship in the control coil that mutually normally closed auxiliary contact is sealed in the other side.
4, smart synergetic controller for oil pump according to claim 2, it is characterized in that: described producing fluid level sensor comprises signal transmitter, processing unit is sent in receiving system and control and change, it is 90 millimeters that this three is arranged on an internal diameter, length is 360 millimeters, wall thickness is in 10 millimeters the circular airtight tube chamber, receiving system is arranged on the front of circular tube chamber, the end of circular tube chamber front is provided with the conical pipe rib-loop, can with closely be connected the communicating pipe of oil well casing by the conical pipe rib-loop, signal transmitter is arranged on the centre of circular tube chamber, control send processing unit to be arranged on the back of circular tube chamber with change, signal transmitter send processing unit to link to each other with the control change with receiving system respectively by cable, control send processing unit to link to each other with CPU_2 by cable with change, carry out exchanges data with RS232/485 communication interface and CPU_2, perhaps carry out exchanges data with CPU_2 wirelessly, this moment, this device must be provided with battery and wireless receiving and dispatching antenna.
5, smart synergetic controller for oil pump according to claim 4 is characterized in that: the realization of described signal transmitter has two kinds of methods, and a kind of is high pressure gas explosion method, and a kind of is electrion process.High pressure gas explosion ratio juris is, gas in the airtight cylinder body is boosted to pressure about 5MPa, discharge rapidly being no more than in time of 0.5 millisecond then, the sound that it sent, can propagate into 2000 meters with interior well fluid level, and its back wave can be received the device microphone and receive, and the signal transmitter of high pressure gas explosion method can select a kind of special miniature electric air pump to realize; The electrion ratio juris is, with the following low tension of 220V is power supply, it is raised to certain high pressure by booster circuit, be added on the suitable special electrode of two spacings, by certain control device, with the discharge rapidly in 0.1 millisecond of this high pressure, the sound that it sent, can propagate into 2000 meters with interior well fluid level, and its back wave can be received the device microphone and receive, and the signal transmitter of electrion process is made of several parts such as low-tension supply, booster circuit, sparking electrode and control device.
6, smart synergetic controller for oil pump according to claim 3, it is characterized in that: described converter unit has realized handing over the frequency conversion function of orthogonal, after the back level becomes interchange, not only can frequency conversion, can also be to realize according to the variation pressure regulation of load by the way that changes the pulsewidth modulation degree of depth.
7, smart synergetic controller for oil pump according to claim 3 is characterized in that: the pump of described energy feedback unit direct current brachium pontis during with the electric power generation state rises energy and feeds back to electrical network, regeneration through handling.
8, smart synergetic controller for oil pump according to claim 1, it is characterized in that: described smart synergetic controller for oil pump is except relevant several external sensors and signal, they are assembled in the main frame power distribution cabinet casing of a reasonable in design, leave the external signal the expanded interface of external sensor interface and standard in the case, main frame power distribution cabinet casing adopts movable hierarchy, strong and weak electricity separately, concrete structure is that two-layer before and after whole box body is divided into, the back layer is fixed, the forceful electric power device is installed, anterior layer is movable, is axle with a side, can be as the door freely openable, anterior layer is installed the light current device, links to each other with control cables between two-layer.
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|---|---|---|---|
| CN 200510010581 CN1978865A (en) | 2005-11-29 | 2005-11-29 | Smart synergetic controller for oil pump |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510010581 CN1978865A (en) | 2005-11-29 | 2005-11-29 | Smart synergetic controller for oil pump |
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| CN1978865A true CN1978865A (en) | 2007-06-13 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101778997A (en) * | 2007-06-19 | 2010-07-14 | 普拉德研究及开发股份有限公司 | System and method for performing oilfield simulation operations |
| CN102278094A (en) * | 2011-07-02 | 2011-12-14 | 常州联科电气成套设备有限公司 | Energy-saving device for beam-pumping unit |
| CN102305998A (en) * | 2011-09-19 | 2012-01-04 | 中国石油天然气股份有限公司 | Oil pumping unit closed-loop control method and system based on underground multi-parameter real-time monitoring |
| CN103510917A (en) * | 2012-06-19 | 2014-01-15 | 中国石油天然气股份有限公司 | Automatic control method and system for oil pumping unit based on online dynamic liquid level monitoring |
| CN104570991A (en) * | 2013-10-29 | 2015-04-29 | 中国石油天然气股份有限公司 | Indicator diagram-based pumping unit regulation and control method |
| CN104993768A (en) * | 2015-06-26 | 2015-10-21 | 中国石油化工股份有限公司胜利油田分公司 | Multifunctional well oil control cabinet |
| CN105373103A (en) * | 2015-12-02 | 2016-03-02 | 淮阴工学院 | Remote control breaking device of mechanical and electrical integrated pumping unit |
| CN105735942A (en) * | 2016-04-27 | 2016-07-06 | 张志文 | Method and system for intelligently thermally washing and removing paraffin by aid of internet of things |
| CN107968615A (en) * | 2016-10-18 | 2018-04-27 | 陕西吉特安全科技有限公司 | A kind of oil recovery well group intelligent control energy saver |
| CN116498274A (en) * | 2023-06-27 | 2023-07-28 | 傲拓科技股份有限公司 | Remote intelligent control method for oil pumping unit based on data acquisition and analysis |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101778997A (en) * | 2007-06-19 | 2010-07-14 | 普拉德研究及开发股份有限公司 | System and method for performing oilfield simulation operations |
| CN102278094A (en) * | 2011-07-02 | 2011-12-14 | 常州联科电气成套设备有限公司 | Energy-saving device for beam-pumping unit |
| CN102305998A (en) * | 2011-09-19 | 2012-01-04 | 中国石油天然气股份有限公司 | Oil pumping unit closed-loop control method and system based on underground multi-parameter real-time monitoring |
| CN102305998B (en) * | 2011-09-19 | 2013-03-13 | 中国石油天然气股份有限公司 | Oil pumping unit closed-loop control method and system based on underground multi-parameter real-time monitoring |
| CN103510917A (en) * | 2012-06-19 | 2014-01-15 | 中国石油天然气股份有限公司 | Automatic control method and system for oil pumping unit based on online dynamic liquid level monitoring |
| CN104570991A (en) * | 2013-10-29 | 2015-04-29 | 中国石油天然气股份有限公司 | Indicator diagram-based pumping unit regulation and control method |
| CN104993768A (en) * | 2015-06-26 | 2015-10-21 | 中国石油化工股份有限公司胜利油田分公司 | Multifunctional well oil control cabinet |
| CN105373103A (en) * | 2015-12-02 | 2016-03-02 | 淮阴工学院 | Remote control breaking device of mechanical and electrical integrated pumping unit |
| CN105735942A (en) * | 2016-04-27 | 2016-07-06 | 张志文 | Method and system for intelligently thermally washing and removing paraffin by aid of internet of things |
| CN105735942B (en) * | 2016-04-27 | 2019-06-28 | 任丘市华北油田诚信工业有限公司 | A kind of Internet of Things Intelligent hot washing wax-clearing method and system |
| CN107968615A (en) * | 2016-10-18 | 2018-04-27 | 陕西吉特安全科技有限公司 | A kind of oil recovery well group intelligent control energy saver |
| 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 |
| CN116498274A (en) * | 2023-06-27 | 2023-07-28 | 傲拓科技股份有限公司 | Remote intelligent control method for oil pumping unit based on data acquisition and analysis |
| CN116498274B (en) * | 2023-06-27 | 2023-09-01 | 傲拓科技股份有限公司 | Remote intelligent control method for oil pumping unit based on data acquisition and analysis |
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