CN101033686A - Device for monitoring start-stop of pumping unit of well and collecting current of up-down stroke current and stroke - Google Patents

Device for monitoring start-stop of pumping unit of well and collecting current of up-down stroke current and stroke Download PDF

Info

Publication number
CN101033686A
CN101033686A CNA2007100214941A CN200710021494A CN101033686A CN 101033686 A CN101033686 A CN 101033686A CN A2007100214941 A CNA2007100214941 A CN A2007100214941A CN 200710021494 A CN200710021494 A CN 200710021494A CN 101033686 A CN101033686 A CN 101033686A
Authority
CN
China
Prior art keywords
circuit
output
input
stop
current
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA2007100214941A
Other languages
Chinese (zh)
Inventor
陈照光
李自明
余泽华
程定林
顾楠
龙志坚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Putian Telecommunications Co Ltd
Original Assignee
Nanjing Putian Telecommunications Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Putian Telecommunications Co Ltd filed Critical Nanjing Putian Telecommunications Co Ltd
Priority to CNA2007100214941A priority Critical patent/CN101033686A/en
Publication of CN101033686A publication Critical patent/CN101033686A/en
Pending legal-status Critical Current

Links

Images

Abstract

The invention is a device used for monitoring start-stop, collection of upward and downward stroke current and frequency of stroke of oil-well extractor. Its structure is composed of monitoring terminal device, current transformer and frequency of stroke sensor. The input end of the monitoring terminal device meets the output ends of the current transformer and the frequency of stroke sensor. Its merits are: the monitoring terminal device can collect start-stop signal of oil extractor accurately, test AC triphase current and provide port for date uploading. It also can measure the temperature in chassis, detect the output signal of removing defense, setting defense and infrared detector, monitor electrical outage of AC supply, test battery voltage and has communication interface with third-party device. The frequency of stroke sensor takes count of frequency of stroke of the extractor accurately. The current transformer separates the first device and the second device effectively to improve receiving efficiency, realize automatic collection of upward and downward stroke current of the extractor, assist oil field to reduce labor force, lower cost and enhance benefit. It transforms manual operation to automatic operation to realize safe productivity.

Description

The start and stop of monitoring pumping unit of well and the device of collection up-down stroke electric current and jig frequency
Technical field
What the present invention relates to is a kind of device that is used to monitor the pumping unit of well start and stop and gathers up-down stroke electric current and jig frequency.Belong to the oil well monitor skill and state the field.
Background technology
Oil well work is understood and grasped in present oil field, and whether normal mode is to adopt the artificial patrol of scene regularly, checks in the mode of range estimation whether oil well stops well; The oil field that has also adopts the relevant parameter of artificial in-site measurement oil well to understand the such dual mode of working condition of oil well.The oil field that the parameter of measuring is different is different, but most of oil fields all can be adopted and be measured upstroke current value, the down stroke current value of jig frequency of oil pumper in the time, calculate again ratio that the down stroke current value catches up with the stroke current value whether in the threshold range of regulation to understand the working condition of oil well.Adopt the defective of artificial patrol and artificial in-site measurement associated arguments to be: poor reliability.Chief reason is that the source of information is not necessarily reliable.Human factor is too many.Can not accurately reflect that in rotation whether an oil well is also in oil pumping such as the crossbeam of only seeing pumping unit of well; Real-time is poor.Because artificial patrol regularly can't be consistent with the actual moment of breaking down.Therefore total the existence obtains the slow excessively phenomenon of information that oil well stops well.The most serious delay can reach a patrol cycle, may be more than 4～8 hours or even 24 hours; Increase oil field workman and patrol personnel's labour intensity, increased the labor cost in oil field; Because of oil pumper all works in the field, and be irregular distribution.Distribute and reach tens kilometers a bite wells when the most diffusing.And the oil field major part is distributed in the field, and major part does not have the hard surfacing process around oil pumper.If it is very close that oil field workman and patrol personnel patrol and the cycle of measuring arrange, certainly will increase their labour intensity greatly.And under constant situation of patrol cycle, reduce labor intensity, must increase the labour again, this has increased the labor cost in oil field again; Having increased the oil field workman and the patrol personnel produce unsafe factor, because oil well is distributed in the field, wilderness, and be irregular distribution, and well follows the spacing between the well far away again, reaches tens kilometers a bite wells when the most diffusing.Therefore oil field workman and patrol personnel go to the scene check and the road measured in all have certain unsafe factor.Especially during bad weather such as storm wind sleet, summer high-temperature heat, this unsafe factor increases greatly.When the workman measures at the scene, since apart from oil pumper too closely by clash into dangerous of oil pumper crossbeam and will contact the hazards that the power line of motor causes getting an electric shock and exist at every turn, because the accident that these factors cause also took place, oil well breaks down and finally stops well.
Summary of the invention
The object of the invention is the defective at above-mentioned existence, proposition is used to monitor the pumping unit of well start and stop and gathers up-down stroke electric current and jig frequency device, automatically gathering with raising oil recovery efficiency, realization oil pumper up-down stroke electric current, serves as that automatic the operation realized safety in production to help the oil field to reduce labour's density and to realize cost efficiency, become manually-operated.
The technology of the present invention solution: its structure is made up of monitoring terminal equipment, current transformer, jig frequency sensor, wherein corresponding the joining of output of the input of monitoring terminal equipment and current transformer, jig frequency sensor.
Advantage of the present invention: monitoring terminal equipment can detect and exchange three-phase current exactly to the collection of oily machine start stop signal, and the port of data upload is provided.Can also measure temperature in chassis, the withdrawing a garrison of cabinet gate inhibition, deploy troops on garrison duty, the monitoring of Infrared Detectors output signal, the outage monitoring of AC power, the detection of cell voltage, and have communication interface with third party device.The jig frequency sensor can be counted the jig frequency of oil pumper like clockwork.Current transformer changes very big primary current into the electric current output or the voltage output of standard; For the coil of measurement mechanism and relay protection provides electric current; Primary equipment and secondary device are effectively isolated.Automatically gathering with raising oil recovery efficiency, realization oil pumper up-down stroke electric current, serves as that automatic the operation realized safety in production to help the oil field to reduce labour's density and to realize cost efficiency, become manually-operated.
Description of drawings
Accompanying drawing 1 is the start and stop monitoring and gathers the apparatus structure block diagram of up-down stroke electric current and jig frequency.
Accompanying drawing 2 is monitoring terminal circuitry structured flowcharts.
Accompanying drawing 3 is structured flowcharts of the start and stop observation circuit in the monitoring terminal equipment.
Accompanying drawing 4 is the three-phase current detection circuit structured flowcharts in the monitoring terminal equipment.
Accompanying drawing 5 is structured flowcharts of the Infrared Detectors signal monitoring circuit in the monitoring terminal equipment:
Accompanying drawing 6 is structured flowcharts of temperature sensing circuit.
Accompanying drawing 7 is structured flowcharts of gate inhibition's observation circuit
Accompanying drawing 8 is withdraw a garrison structured flowcharts of circuit of gate inhibition.
Accompanying drawing 9 is structured flowcharts of output control signal circuit.
Accompanying drawing 10 is structured flowcharts of battery voltage monitoring, AC dump testing circuit.
Accompanying drawing 11 is structured flowcharts of output indicating circuit.
Accompanying drawing 12 is structured flowcharts of function selector circuit.
Accompanying drawing 13 is structured flowcharts of UART serial port circuit.
Accompanying drawing 14 is the dry-reed tube component structural representations in the sensing device of monitoring pumping unit of well jig frequency.
Accompanying drawing 15 is the strong magnet modular construction schematic diagrames in the sensing device of monitoring pumping unit of well jig frequency.
Accompanying drawing 16 is software process charts.
Among the figure 1 is tongue tube, the 2nd, dry-reed tube component base, the 3rd, dry-reed tube component housing, the 4th, strong magnet, the 5th, epoxy plate, the 6th, strong magnet unitized substructure, the 7th, strong magnet assembly housing.
The specific embodiment
Contrast accompanying drawing 1, its structure is made up of monitoring terminal equipment, current transformer, jig frequency sensor, wherein corresponding the joining of input of the output of current transformer, jig frequency sensor and monitoring terminal equipment.
The major function of described monitoring terminal equipment (RTU) is: the collection of oily machine start stop signal, exchange the detection of three-phase current, and the port of data upload is provided.In addition, it can also be measured temperature in chassis, the withdrawing a garrison of cabinet gate inhibition, deploy troops on garrison duty, the monitoring of Infrared Detectors output signal, the outage monitoring of AC power, the detection of cell voltage, and have communication interface with third party device.
The major function of gathering mainboard is: with DTU and the communication that exchanges three phase watt-hour meter, the detection of cell voltage, the outage monitoring of AC power, the collection of oily machine start stop signal, the monitoring of Infrared Detectors output signal, exchange the detection of three-phase current, the measurement of temperature in chassis and cabinet gate inhibition withdraw a garrison, deploy troops on garrison duty etc.That the MCU in the collection mainboard adopts is C8051F022, and this chip is a mixed signal ISP FLASH microcontroller, at a high speed 8051 microcontroller kernels, 64K byte FLASH memory, 4352 byte inner data RAM, the highest frequency of can working is 25MHZ, two UART serial ports, 0 ADC of 8 port ones, 64 port number I/O, the accent slowdown monitoring circuit in the sheet provide at full speed, non-intrusion type at system comissioning, meet the IEEE1149.1 boundary scan standard, 100 pin TQFP encapsulation, operating temperature-40 ℃～+ 85 ℃.
Contrast accompanying drawing 2, its structure is a battery voltage detection circuit, the AC dump testing circuit, function selector, three-phase current detection circuit, gate inhibition monitoring and the gate inhibition circuit of withdrawing a garrison, the start and stop observation circuit, the output of Infrared Detectors monitor signal output circuit respectively with the first, the second, the 3rd of single-chip microprocessor MCU, the 4th, the the five, the six, the 7th input correspondence is joined; Temperature measuring circuit, the output of a UART interface 1, the two UART interface 0/go into to hold with the first, the second, the 3rd of single-chip microprocessor MCU to import/go out to hold correspondence to join; The input of output control signal circuit and output indicating circuit and the first, the second output correspondence of single-chip microprocessor MCU are joined;
Contrast accompanying drawing 3; the structure of start and stop observation circuit is to be taken over the input of voltage protection circuit by the output of jig frequency sensor; the input of the output termination level shifting circuit of overvoltage crowbar, the output of level shifting circuit connects the interrupting input end mouth of single-chip microprocessor MCU.
The function of start and stop observation circuit is: monitor the operation conditions of oily machine in real time, so that understand the whether frequency of operate as normal and running of oily machine.
The start stop signal place in circuit that provides by the start and stop sensor; behind overvoltage crowbar,, be transformed to the level signal that is fit to single-chip microprocessor MCU again through level conversion; insert the interrupting input end mouth of single-chip microprocessor MCU, gather the signal of start and stop sensor and analyzing and processing in addition in real time by single-chip microprocessor MCU.The start and stop sensor is converted to switching signal with the operation shape frame of oily machine, and what overvoltage protection used is the TVS pipe, in order to suppress line between start and stop sensor and the circuit because extraneous induction or touch the high pressure of formation, with holding circuit.
Contrast accompanying drawing 4; the structure of three-phase current detection circuit is the input of the output termination signal sampling circuit of current transformer; the output of signal sampling circuit is taken over the input of voltage protection circuit; the input of the output termination polar protective circuit of overvoltage crowbar; the input of the output termination signal conditioning circuit of polar protective circuit; the input of the output termination input filter circuit of signal conditioning circuit, the input of the output termination A/D input circuit of input filter circuit.
The function of three-phase current detection circuit is: the three-phase current when detecting the work of oily machine in real time, and in order to monitor the operation conditions of oily machine.Three-phase alternating current during the work of oil machine produces secondary current by current transformer in the loop of secondary winding in current transformer; Secondary current forms sampled signal through signal sampling circuit; By limiter protection circuit, to limit too high voltage signal, to protect follow-up circuit, limiter protection circuit is made up of resistance, diode; In order to be fit to the requirement of A/D converter to acquired signal polarity, carried out with polar protective circuit, what polar protective circuit used is diode circuit; In order to be fit to the requirement of A/D converter, carried out with signal conditioning circuit to the acquired signal amplitude; In order to eliminate the interference of other signals, before A/D converter, increased filter circuit, so that the output signal of A/D converter is more accurate, reduce error, filtered electrical routing resistance, electric capacity are formed; Enter A/D converter through filtered signal, carry out the conversion of analog signal to data signal.
Contrast accompanying drawing 5; Infrared Detectors monitor signal output circuit; its structure is the input that the output of Infrared Detectors is taken over voltage protection circuit, the input of the output termination level shifting circuit of overvoltage crowbar, the interrupting input end mouth of its termination single-chip microprocessor MCU of the output of level shifting circuit.
Provide Infrared Detectors monitor signal output circuit, in the time of in personnel enter the infrared acquisition zone, in time provide alarm signal.Signal place in circuit by Infrared Detectors output; behind overvoltage crowbar,, be transformed to the level signal that is fit to single-chip microprocessor MCU again through level conversion; insert the interrupting input end mouth of single-chip microprocessor MCU, gather the signal of Infrared Detectors output and analyzing and processing in addition in real time by single-chip microprocessor MCU.What overvoltage protection used is the TVS pipe, in order to suppress line between Infrared Detectors and the circuit because extraneous induction or touch the high pressure of formation, with holding circuit.
Contrast accompanying drawing 6, temperature observation circuit is in order to monitor the temperature in the cabinet, understand the working environment of circuit, used temperature pick up in the circuit, temperature pick up is the DS18B20 of DALLAS-MAXIM, one of solid numeral I/O thermometer that the DS18B20 precision is the highest, single line 1-Wire interface, DS18B20 have-55 ℃～+ 125 ℃ operating temperature ranges, have in-10 ℃ to+85 ℃ temperature ranges ± 0.5 ℃ of precision, the supply voltage scope is 3.0V to 5.5V, the TO-92 encapsulation.
Contrast accompanying drawing 7,8, gate inhibition monitoring, the gate inhibition circuit of withdrawing a garrison is that gate inhibition to cabinet manages, be provided with deploying troops on garrison duty and withdrawing a garrison function of gate inhibition, gate inhibition's function is so that in time report to the police to illegal invasion, the function of withdrawing a garrison is carried out by pressing button, for engineering maintenance facilitates, prevent to produce unnecessary alarm signal.In gate inhibition's observation circuit, the signal place in circuit of the machine box door that gate inhibition's sensor monitors arrives enters the interrupting input end of single-chip microprocessor MCU after level conversion, by the state of the real-time monitoring machine chamber door of single-chip microprocessor MCU; In the gate inhibition withdrew a garrison circuit, the signal place in circuit of the button of withdrawing a garrison entered the interrupting input end of single-chip microprocessor MCU after level conversion, after single-chip microprocessor MCU receives the signal of withdrawing a garrison, will not produce gate inhibition's alarm signal.
Contrast accompanying drawing 9, output control signal circuit can directly connect acousto-optical devices such as indicator lamp, buzzer as required, or directly connect relay in order to control other electric fixturess.The control signal of single-chip microprocessor MCU output is after current-limiting protection; export driving; behind output protection, can control corresponding electrical equipment or circuit; can directly connect indicator lamp that operating voltage is 12V, buzzer, relay etc.; output drives and (has mainly utilized the amplification of transistor for transistor circuit; at this on-off switch) as control signal; output protection is diode (mainly having utilized the unilateal conduction performance of semiconductor diode), in case reverse potential causes damage to circuit.
Contrast accompanying drawing 10, battery voltage supervisory circuit is to realize the monitoring of cell voltage and the monitoring of AC dump, voltage to battery in the circuit is monitored in real time, the monitoring of cell voltage is to be realized by the ADC in the single-chip microprocessor MCU (analog-digital converter), by monitoring to cell voltage, can understand the situation of power supply and battery, especially when exchanging power failure, when cell voltage drops to the voltage of setting, produce the under-voltage cue of battery, so that understand the reason of communication disruption after outage.Behind the cell voltage place in circuit,, enter D/A converting circuit through dividing potential drop sampling and limited amplitude protection; after digital-to-analogue conversion; single-chip microprocessor MCU directly reads the magnitude of voltage of battery, and amplitude limiter circuit is made up of diode circuit, is in order to prevent that too high voltage from causing the damage of D/A converting circuit.
Contrast accompanying drawing 11,12, output indicating circuit and function selector provide the indication of single-chip microprocessor MCU duty, adopt two light emitting diodes in order to indication, provide two bit functions to select to adapt to different application.In order to understand the duty of circuit intuitively; circuit provides two working station indicators; so that directly indicate duty, communications status of single-chip microprocessor MCU etc.; the output signal of single-chip microprocessor MCU is after current-limiting protection; cut-in operation situation indicator lamp, indicator lamp are that light emitting diode is installed on the surface.For the function that makes circuit is brought into play more perfectly, adapt to different application, and controlled artificially simply,, be provided with two bit functions and select circuit, function selector circuit is by function selector, insert single-chip microprocessor MCU after level conversion, what function selector used is the wire jumper short-circuiting device, by whether inserting short-circuiting device to reach the purpose of function selecting.
Contrast accompanying drawing 13, the UART serial port circuit provides two UART serial line interfaces in this circuit, and the 2nd UART interface 0 can be connected with the RF module that the UART serial ports is provided and communicates; The one UART interface 1 can be connected with the energy meter that the UART serial ports is provided and communicates; Two UART serial ports also can pass through the external interface signal adapter in addition, carry out different interface functions, the apparatus interconnection of convenience and other distinct interface functions.Also provide to RF module and the required power supply of energy meter in two UART serial line interfaces that on circuit, provide.
Provide in this device+5V and+the 3.3V working power, supply with MUC and other circuit and use, that power supply chip uses is MIC29150-5.0BU and the MIC29150-3.3BU of MICREL, TO-263 encapsulation, operating temperature-40 ℃～+ 125 ℃.Behind the 12V power access circuit,, enter power regulator MIC29150-5.0BU, the 12V power supply of importing is become stable 5V power supply output power supply road use through input filtering; The 5V power supply enters power regulator MIC29150-3.3BU more in addition, the 5V power supply of importing is become stable 3.3V power supply output power supply road use.
Contrast accompanying drawing 14, Figure 15, its structure is made up of dry-reed tube component and strong magnet assembly two parts.
Tongue tube 1 in the dry-reed tube component is a kind of magnetosensitive switch.When permanent magnet forms magnetic field near tongue tube or after by the coil electricity on tongue tube reed is magnetized, the contact portions of reed just is magnetized and induces opposite polarity magnetic pole, the magnetic pole of different name attracts each other, and when the magnetic force that attracts surpassed the elastic force of reed, contact will adhesive; When magnetic force was reduced to certain value, contact can be flicked by the elastic force of reed again.The distance of the strong magnet of the tongue tube in the dry-reed tube component in the strong magnet assembly is at 90-150mm.As long as near it, 1 two nodes of tongue tube will be pulled together, and make circuit turn-on with magnet.
Strong magnet 4 in the strong magnet assembly is welded on the oil pumper rocking arm, when oil pumper is worked, along with the oil pumper rocking arm swings up and down.Dry-reed tube component is welded on the oil pumping unit base, and when each oil pumper rocking arm rotation process was installed in the magnetic red pipe of oil pumper support, tongue tube was by magnet adhesive, output signal.The signal output part lead-in wire of tongue tube inserts the input signal of monitoring terminal equipment (RTU) as the jig frequency sensor with connector, and terminal device is finished once counting.Wherein the key technical indexes of tongue tube is: operating distance: 15cm ± 0.5cm; Pickup value (PI): 15～60AT; Switching value (PI): 〉=6AT; Switch is withstand voltage: 100VDC; Maximum switching current: 0.5A; Contact resistance :≤100m Ω; Minimum isolated impedance: 109 Ω; Life-span: 109 times; Switch output: often open;
The strong magnet the key technical indexes: the performance requirement of magnet is according to the GB/T13560-2000 standard production; Its major parameter performance is: Br:11.8kGs--12.2kGs; Hcj＞20kOe; BH:max:33-36MGOe.

Claims (6)

1, the device of the start and stop of monitoring pumping unit of well and collection up-down stroke electric current and jig frequency, it is characterized in that forming, wherein corresponding the joining of output of the input of monitoring terminal equipment and current transformer, jig frequency sensor by monitoring terminal equipment, current transformer, jig frequency sensor.
2, monitoring pumping unit of well according to claim 1 start and stop and collection up-down stroke current device, battery voltage detection in the described monitoring terminal equipment of its feature, AC dump testing circuit, function selector, three-phase current detection circuit, gate inhibition's cloth, the circuit of withdrawing a garrison, the output of start and stop observation circuit, Infrared Detectors monitor signal output circuit respectively with the first, the second of single-chip microprocessor MCU, the 3rd, the the four, the five, the 6th, the 7th input correspondence is joined; Temperature measuring circuit, a UART interface, the output of the 2nd UART interface/go into to hold with the first, the second, the 3rd of single-chip microprocessor MCU to import/go out to hold correspondence to join; Output control signal circuit, the input of output indicating circuit and the first, the second output correspondence of single-chip microprocessor MCU are joined.
3, monitoring pumping unit of well according to claim 1 start and stop and collection up-down stroke current device; start and stop observation circuit in the described monitoring terminal equipment of its feature is taken over the input of voltage protection circuit by the output of jig frequency sensor; the input of the output termination level shifting circuit of overvoltage crowbar, the output of level shifting circuit connects the interrupting input end mouth of single-chip microprocessor MCU.
4; monitoring pumping unit of well according to claim 1 start and stop and collection up-down stroke current device; the input of the output termination signal sampling circuit of its current transformer of three-phase current detection circuit in the described monitoring terminal equipment of its feature; the output of signal sampling circuit is taken over the input of voltage protection circuit; the input of the output termination polar protective circuit of overvoltage crowbar; the input of the output termination signal conditioning circuit of polar protective circuit; the input of the output termination input filter circuit of signal conditioning circuit, the input of the output termination A/D input circuit of input filter circuit.
5, monitoring pumping unit of well according to claim 1 start and stop and collection up-down stroke current device; Infrared Detectors monitor signal output circuit in the described monitoring terminal equipment of its feature; the output of Infrared Detectors is wherein taken over the input of voltage protection circuit; the input of the output termination level shifting circuit of overvoltage crowbar, the output of level shifting circuit connects the interrupting input end mouth of single-chip microprocessor MCU.
6, monitoring pumping unit of well according to claim 1 start and stop and collection up-down stroke current device, it is characterized in that the strong magnet assembly is welded on the oil pumper rocking arm, dry-reed tube component is welded on the oil pumping unit base, the tongue tube 90-150mm of the strong magnet in the strong magnet assembly in the dry-reed tube component.
CNA2007100214941A 2007-04-16 2007-04-16 Device for monitoring start-stop of pumping unit of well and collecting current of up-down stroke current and stroke Pending CN101033686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2007100214941A CN101033686A (en) 2007-04-16 2007-04-16 Device for monitoring start-stop of pumping unit of well and collecting current of up-down stroke current and stroke

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2007100214941A CN101033686A (en) 2007-04-16 2007-04-16 Device for monitoring start-stop of pumping unit of well and collecting current of up-down stroke current and stroke

Publications (1)

Publication Number Publication Date
CN101033686A true CN101033686A (en) 2007-09-12

Family

ID=38730408

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007100214941A Pending CN101033686A (en) 2007-04-16 2007-04-16 Device for monitoring start-stop of pumping unit of well and collecting current of up-down stroke current and stroke

Country Status (1)

Country Link
CN (1) CN101033686A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102288816A (en) * 2011-10-23 2011-12-21 黑龙江大学 Multi-purpose energy efficiency analyzer for oil pumping unit and measuring method of analyzer
CN107526020A (en) * 2017-07-24 2017-12-29 清华大学 A kind of automatic checkout system of the acoustic logging signal acquisition circuit based on SoC
CN115263252A (en) * 2022-08-16 2022-11-01 厦门钨业股份有限公司 Intermittent pumping control method and system of pumping unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102288816A (en) * 2011-10-23 2011-12-21 黑龙江大学 Multi-purpose energy efficiency analyzer for oil pumping unit and measuring method of analyzer
CN107526020A (en) * 2017-07-24 2017-12-29 清华大学 A kind of automatic checkout system of the acoustic logging signal acquisition circuit based on SoC
CN115263252A (en) * 2022-08-16 2022-11-01 厦门钨业股份有限公司 Intermittent pumping control method and system of pumping unit

Similar Documents

Publication Publication Date Title
CN101603994B (en) On-line monitoring device of metallic oxide arrester
CN201167381Y (en) Apparatus for monitoring and alarming solar power supply
CN205861839U (en) The insulation monitoring and warning device of a kind of charging pile and charging pile
CN201583631U (en) Online-detecting device and system of storage battery
CN101699306B (en) Method for monitoring current acquisition circuit of electric power secondary system
CN102426317B (en) Fault detection method of intelligent power grid
CN101466193A (en) Method for monitoring lighting lamp power factor compensation capacitance fault
CN102354913A (en) Intelligent photovoltaic header box and manufacturing method thereof
CN104868845A (en) Device and method for monitoring data of embedded solar photovoltaic module data
CN201050358Y (en) Device for monitoring oil well pumping unit start-stop and collecting up and down stroke electric current and punching number
CN103559801A (en) Countdown digital display signal lamp fault detection system simultaneously driven by multiple loads
CN101033686A (en) Device for monitoring start-stop of pumping unit of well and collecting current of up-down stroke current and stroke
CN203838236U (en) Device for detecting electric crossing of direct-current system
CN204287418U (en) A kind of circuit breaker switch state pick-up unit
CN102129008A (en) Fault detection device for distribution network
CN203321490U (en) Wireless oil well intelligent monitoring terminal RTU
CN101788616A (en) Surge protector detecting device based on temperature sensor
CN203522134U (en) Arc fault protection device
CN210534282U (en) Intelligent diagnosis instrument for oil pumping unit pump
CN106525265B (en) Wireless temperature monitoring and indicating device for capacitor
CN2886588Y (en) Universal fault indicator for high voltage grid
CN201314941Y (en) Trolly wire fault alarm
CN200983518Y (en) Agricultural intelligent management system
CN201935980U (en) Power distribution network failure detector
CN202906439U (en) Drive circuit earth leakage protection circuit used for road traffic signal controller

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20070912