CN2638310Y - Multifunctional protector for beam-pumping unit - Google Patents

Multifunctional protector for beam-pumping unit Download PDF

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Publication number
CN2638310Y
CN2638310Y CN 03213692 CN03213692U CN2638310Y CN 2638310 Y CN2638310 Y CN 2638310Y CN 03213692 CN03213692 CN 03213692 CN 03213692 U CN03213692 U CN 03213692U CN 2638310 Y CN2638310 Y CN 2638310Y
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China
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circuit
microcontroller
voltage
microprocessor
port
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CN 03213692
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Chinese (zh)
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吴连学
刘立祥
张新华
张嘉
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盘锦天亿源科贸有限公司
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Abstract

The utility model relates to a multifunctional pumping unit protector that is used in the production process of oilfield pumping well, comprising a box body and a circuit board that is positioned in the box. The circuit system comprises five units, including a detection circuit A, a power supply and motor protection and control circuit B, a display circuit C, a wireless remote control circuit D and a wireless remote control circuit E. The protector is provided with a plurality of functions of connecting rod protection and automatic control of the pumping unit, the open-phase and over-current protection of the three-phase AC motor, no shutdown in instant failure of strong electricity, the power saving of the AC contactor, the low voltage starting and the fault alarming indication. The protector is also characterized by good stability, strong capacity of disturbance resistance, high degree of automation, swift movement, safety and reliability while in work and easy installation and maintenance, thereby being suitable to be popularized and applied.

Description

一种多功能抽油机保护器 A versatile pumping unit protector

技术领域 FIELD

:本实用新型涉及一种用于油田抽油井生产过程的抽油机工作自动保护装置。 : The present invention relates to a pumping unit for pumping oil well production process of the automatic protection device.

背景技术 Background technique

:游梁式抽油机是国内外机械采油井生产的主要设备,由于油井工况复杂,野外气候条件恶劣,抽油机工作易受天气变化、供电系统、机械故障等多种因素影响,导致生产事故或油井停产。 : Beam pumping unit is the main equipment of domestic and foreign production of machinery production wells, oil wells due to the complex conditions, adverse weather conditions field, pumping unit susceptible to weather changes affect a variety of factors power supply systems, mechanical failure, leading to industrial accidents or stop production wells. 为防止或减少抽油机故障的发生,现场采用了各种各样的保护器。 To prevent or reduce the incidence of failure of the pumping unit, on-site using a variety of protection. 然而,目前现场采用的抽油机保护器大多存在着功能单一或较少,工作稳定性和抗干扰能力差,动作灵敏度和可靠性较低等缺点和不足,难以满足确保抽油井安全生产的要求。 However, the pumping unit using the site protector there are mostly single function or less, poor operational stability and anti-jamming, operation of low sensitivity and reliability drawbacks and disadvantages, it is difficult to ensure the pumping wells meet the requirements of safe production .

发明内容 SUMMARY

:本实用新型的目的在于提供一种功能多、稳定性好、抗干扰能力强、自动化程度高、安全可靠的多功能抽油机保护器。 : The purpose of the present invention is to provide a multi-function, good stability, strong anti-interference ability, high degree of automation, safe and reliable multi-function pumping protector.

本实用新型是这样实现的。 The present invention is accomplished. 此种保护器由箱体及设置在其内的电路板组成,箱体正面设有启动/上调键、停止/下调键和设定键3个控制键和启动、停止、过流、缺相、复位、遥控等6个指示灯,电路系统包括检测电路即三相电缺相判断及电流峰值采样电路电源及电机保护控制电路、显示电路、无线遥控电路、智能控制电路五个单元。 Such protection is provided by the cabinet and the circuit boards therein, the housing is provided with a front start / up key, a stop / down key and setting keys and three control keys to start, stop, over-current, phase, reset, remote control six indicators, the circuitry includes a detection circuit that is a three-phase current phase and the peak sample is determined and motor protection control circuit power supply circuit, a display circuit, a wireless remote control circuit, the control circuit intelligent five cells. 使用时,将该保护器安装在抽油机配电箱内,在抽油机工作过程中,该保护器可完成以下多种功能;(1)、抽油机曲柄连杆保护自动控制:当抽油机柄螺丝松动连杆发生位移时,带动电子开关,通过抽油机上的高精度无线电数字编码发射器将信号发射出去,设置在抽油机配电箱内的保护器接收电路接收到信号后,送到微控制器经过内部电路一系列放大、解调、正形、解码等处理,发生脉冲控制信号,驱动控制电路,断开交流接触器供电线路,将抽油机及时停下来,同时发出报警指示,从而达到保护抽油机的目的。 In use, the protector is mounted on the pumping unit distribution box, the pumping operation, the protector can perform the following functions; (1), automatically controlled pumping crank link protection: when when loosening the screw shank rod pumping unit is displaced, driven by an electronic switch, high precision digital encoder radio transmitter to transmit signals on the pumping out, the protector is provided in the receiving circuit of the pumping unit receives a signal distribution board after the internal circuit to the microcontroller through a series of amplification, demodulation, n-shaped, like a decoding process, the control pulse signal generator, a drive control circuit, the AC contactor power supply line is disconnected, the pumping stop in time, while alarm indication, thereby protecting the pumping unit.

(2)、电动机缺相保护:当电源到电动机之间任何一项电缺相时,保护器的检测电路将检测出的缺相信号送到微控制器,发出控制指令驱动执行电路切断电机电源,电动机即停止运转,同时发出报警批示,从而起到全程保护电动机的作用。 (2), the lack of protection of the motor: when any one power supply to the motor between a phase detection circuit protector lack the detected phase signal to the microcontroller, a control command execution circuit driving the motor power , the motor stops running, and alarm instructions, which play a full role in the protection of the motor.

(3)、接触器节电和低压起动:该保护器接触采用直流供电方式,能够克服和消除接触器原来交流运行中存在的动静铁芯中的振动和噪音,使接触器长期运行在交流高电压下的线圈发热易损坏问题得到根本消除,从而提高接触器的可靠性和使用寿命,节约其在交流运行中的有功和无功损耗,取得明显的节电效果,并能在220V情况下低压起动。 (3), and a low starting power saving contacts: the protective contact DC power supply can be overcome and eliminate the original exchange contact movement operation of the core present in the vibration and noise, the contactor long-term operation at a high AC heating of the coil voltage at the fundamental problem to eliminate easily damaged, thereby improving the reliability and service life of the contactor, which saves active and reactive power loss in AC operation, to achieve significant energy-saving effect, and to a low pressure in the case of 220V start.

(4)、电动机过流保护:当保护器检测端检测出电流信号超过设定值并累加到一定周期时,通过比较放大环节驱动执行电路切断电机电源使电动机停止运转,起到保护作用,同时发出报警指示。 (4), the motor current protection: the detection terminals when the protection device detects the current signal exceeds a set value and to accumulate a certain period, by comparing the enlarged part of the motor power driver circuit performs the electric motor is stopped, play a protective role, while alarm indication.

(5)、强电瞬间停电不停机:由于该保护器具有强电瞬间停电不停机功能,从而可以有效避免在风、雨、雪等恶劣天气下瞬间跳闸停电停井现象的发生。 (5), strong electric instantaneous power off the machine: As the protector has a strong electric instantaneous power failure non-stop function, which can effectively avoid in the wind, rain, snow and other inclement weather momentary power failure stop trip well phenomenon.

本实用新型具有抽油机连杆保护自动控制、三相交流电动机缺相及过流保护、强电瞬间停电不停机、交流接触器节电及低压起动和故障报警指示等多功能,并具有稳定性好、抗干扰能力强、自动化程度高、动作灵敏、工作安全可靠、安装维护方便等特点,宜于推广应用。 The present invention has an automatic protection control rod pumping unit, and three-phase AC motor phase overcurrent protection, instantaneous power failure ferroelectric non-stop, AC contactor power saving and low starting and fault alarm indication and other functions, and has stable good, strong anti-interference ability, high degree of automation, motion sensitive, safe and reliable, easy installation and maintenance features, suitable for application.

附图说明 BRIEF DESCRIPTION

:附图为本实用新型的电路构成、工作原理示意图。 : Reference circuit of the present invention constituted schematic working principle.

具体实施方式 Detailed ways

:以下结合附图对本实用新型的实施作进一步说明。 : Novel conjunction with the drawings of the present practical embodiment will be further described.

如图所示,本实用新型电路系统由检测电路A、电源及电机保护控制电路B、显示电路C、无线遥控电路D和智能控制电路E组成,各电路构成及工作传接关系如下:检测电路A由电压比较集成电路LM339、整流二极管D1-D6、稳压管Z1-Z3及相关阻容元件组成,由单片机P1口的1、3、5端输入三相交流互感电压,一路通过整流二极管D1、D2、D3整流后送入电压比较集成电路LM339,输出端CRN-A、CRN-B、CRN-C送入微处理器CPU;另一路通过整流二极管D4、D5、D6整流后由输出端A-OUT送入LM331电压频率转换电路,然后送入微处理器CPU。 As shown, the circuitry of the present invention by the detection circuit A, power supply and motor protection control circuit B, circuit C show, the wireless remote control circuits D and E composed of intelligent control circuit, and each circuit constituting transmitter and receiver working relationship is as follows: the detection circuit a comparison of the LM339 integrated circuit by a voltage, rectifying diodes D1-D6, zener diode Z1-Z3 and associated RC components, a 1,3,5 input port P1 of a microcontroller phase AC induction voltage, all the way through the rectifying diode D1 after D2, D3 rectified input voltage comparator to the LM339 integrated circuit, the output of CRN-A, CRN-B, CRN-C into the CPU microprocessor; through the rectifying diode D4, D5, D6 rectified by the output of another road A- OUT fed LM331 voltage frequency conversion circuit, and then fed to the microprocessor CPU. 电源及电机保护控制电路B由电源变压器PB380V 5W整流二极管D9-D14、保护二极管D7、D8、稳压管Z4、继电器J1、J2、达林顿驱动芯片SN75451、稳压块LM7805、7806及相关阻容元件组成,由单片机P2口的1、2端输入380V交流电压,一路通过电源变压器降压及整流稳压后送入各相关电路,另一路通过整流二极管D9半波整流后作为外部接触器的起动电源,外部接触器接P2的3、4端,其低压供电端为D10;达林顿驱动芯片SN75451的输入控制端1、6脚由微处理器CPU的OUT1、OUT2控制,从而控制继电器J1、J2的通断。 Power supply and motor protection control circuit from the power transformer PB380V 5W B rectifying diodes D9-D14, a protective diode D7, D8, zener diode Z4, the relay J1, J2, Darlington driver chip SN75451, and related barrier regulator block LM7805,7806 capacitance elements, ports 1, 2 of a microcontroller P2 380V AC input voltage, all the way down through the power transformer and rectifier regulator into each correlation circuit, the other way through the half-wave rectifier rectifying diode D9 is an external contactor starting power, external contact terminal P2 connected to 3,4, which is the low voltage power supply terminal DlO; input control terminal of the Darlington driver chip SN75451 1,6 feet from the microprocessor CPU OUT1, OUT2 control, to control the relay J1 , J2-off. 无线遥控电路D由发射模块(置于抽油机连杆发射盒内)和接收模块组成,其中,接收器T2038CK模块的2、5、6端通过施密特反向器74LS14的C-COM、C-0N、C-OFF端子送入微处理器CPU。 Transmitting by the wireless remote control circuit D module (pumping link transmitter box is placed) and a receiving module, wherein the receiver end 2,5,6 T2038CK Schmitt inverter module via a 74LS14 C-COM, C-0N, C-OFF terminals into the microprocessor CPU. 智能控制电路E由微处理器CPU(即AT89C52)、监视芯片X25045、施密特反向器74LS14、集成电路LM331及相关容阻元件组成,集成电路LM33及相关阻容元件将电流电压经过电压频率转换成脉冲信号送到微处理器计数输入端,LM331的7脚为电压输入端,3脚为频率出端,监视芯片X2504具有上电复位、电源监测及看门狗功能,并有一块EEPRON存储空间,可对重要数据进行掉电保护;微处理器CPU为整个系统的核心,AT89C52将转换后的三相电源脉冲频率及各相信号状态信号进行实时处理,通过显示单元显示出来,并通过输出接口给控制键盘单元发送信号,实现系统控制。 Intelligent control circuit E by a microprocessor CPU (i.e. on AT89C52), monitor the chip X25045, Schmitt inverter 74LS14, LM331 integrated circuit and capacitance associated resistive elements, integrated circuits and associated RC element LM33 current voltage through voltage frequency into a pulse count input signal to the microprocessor, of the LM331 voltage input 7 feet, 3 feet for the end frequency, monitor the chip X2504 on reset, power monitoring and watchdog function, and has a storage EEPRON space, important data can be down protection; microprocessor CPU core of the system, and each three-phase power pulse frequency after converting the phase signal state AT89C52 real-time signal processing, are displayed by the display unit, and the output the interface unit sends a signal to a control keyboard, system control. 显示电路C由单片机的端子MCOM1、MCOM2、MCOM3、八D触发器74LS374、阻流电阻R35-R42、发光二极管L1-16及相关容阻元件组成,由单片机AT89C52的RP4口脚13(MCOM1)、脚12(MCOM2)、脚11(MCOM3)给数码管提供位选线,RP4口P16-P17通过八D触发器74LS374给数码管提供段选线;通过改变阻流电阻R35-R42的阻值可调整数码管的亮度;发光二极管L1-L6的阴极接到一起,由单片机AT89C52的P3口脚10(MCOM4)提供公共选通线,发光二极管阳极接74LS374,单片机通过软件控制各发光二极管是否选通;单片机P1、P3口分别接有上拉排电阻RP3和RP4,用以实现管脚的驱动能力与电平匹配,上拉排电阻RP2接到单片机的P2口,公共端接+5V电源;电容C2、C6、C10、C11作滤波用,用以键盘防止拦动处理。 C by the display circuit terminals MCOM1 microcontroller, MCOM2, MCOM3, 74LS374 Octal D flip-flop, the choke resistors R35-R42, a light emitting diode and associated capacitance L1-16 resistive elements by the RP4 AT89C52 microcontroller port pin 13 (MCOM1), pin 12 (MCOM2), pin 11 (MCOM3) to provide a digital bit line selection, RP4 eight ports P16-P17 by D flip-flop 74LS374 to provide digital line selection period; by varying the resistance of resistors R35-R42 baffle may the digital brightness adjustment; light emitting diode to the cathode of the L1-L6 together to provide a common gate line from the port P3 of the microcontroller AT89C52 pin 10 (MCOM4), anode of the LED connected 74LS374, microcontroller through software control each of the light emitting diode gating whether ; microcontroller P1, P3 port row respectively have pull resistor RP3 and as RP4, driving capability to achieve level matching pin, the pull-up resistor RP2 discharge port to the microcontroller P2, the + 5V power public termination; capacitance C2, C6, C10, C11 used for filtering, processing for moving the keypad to prevent blocking.

Claims (1)

1.一种多功能抽油机保护器,由箱体及设置在其内的电路板组成,其特征在于,电路系统包括检测电路A、电源及电机保护控制电路B、无线遥控电路D显示电路C、智能控制电路E五个单元,其中,检测电路A由电压比较集成电路LM339、整流二极管D1-D6、稳压管Z1-Z3及相关阻容元件组成,由单片机P1口的1、3、5端输入三相交流互感电压,一路通过整流二极管D1、D2、D3整流后送入电压比较集成电路LM339,输出端CRN-A、CRN-B、CRN-C送入微处理器CPU,另一路通过整流二极管D4、D5、D6整流后由输出端A-OUT送入LM331电压频率转换电路,然后送入微处理器CPU;电源及电机保护控制电路B由电源变压器PB380V5W,整流二极管D9-D14、保护二极管D7、D8稳压管Z4、继电器J1、J2、达林顿驱动芯片SN75451、稳压块LM7805、7806及相关阻容元件组成,由单片机P2口的1、2端输入380V交流电压,一路通过 1. A multifunctional pumping protection, and the casing disposed therein circuit boards, characterized in that the circuit comprises a detecting circuit A, power supply and motor protection control circuit B, Radio remote control circuit D display circuit C, E five intelligent control circuit unit, wherein the voltage detection circuit a comparison the LM339 integrated circuit, the rectifying diodes D1-D6, zener diode Z1-Z3 and associated RC components, by the microcontroller port P1 1,3, 5 three-phase AC induction voltage input terminal, all the way through the rectifying diode D1, the D2, D3 rectified input voltage comparator to the LM339 integrated circuit, the output of CRN-A, CRN-B, CRN-C into the microprocessor the CPU, the other way by rectifier diodes D4, D5, D6 LM331 rectified voltage into the frequency conversion circuit from the output terminal A-OUT, and then fed to the CPU microprocessor; power control and motor protection circuit B from the power transformer PB380V5W, rectifying diodes D9-D14, protection diode D7, D8 Zener diode Z4, the relay J1, J2, Darlington driver chip SN75451, LM7805,7806 regulator block and associated RC components, 380V AC voltage terminal 1, 2 of the microcontroller input port P2, by way 源变压器降压及整流稳压后送入各相关电路,另一路通过整流二极管D9半波整流后作为外部接触器的起动电源,外部接触器接P2的3、4端,其低压供电端为D10,达林顿驱动芯片SN75451的输入控制端1、6脚由微处理器CPU的OUT1、OUT2控制,从而控制继电器J1、J2的通断;显示电路C由单片机的端子MCOM1、MCOM2、MCOM3、八D触发器74LS374、阻流电阻R35-R42、发光二极管L1-L6及相关容阻元件组成,由单片机的RP4口脚13、脚12、脚11给数码管提供位选线,RP4口P10-P17通过八D触发器74LS374给数码管提供段选线,发光二极管L1-L6的阴极接到一起,由单片机P3口脚10提供公共选通线,发光二极管阳极接74LS374,单片机通过软件控制各发光二极管是否选通,单片机P1口、P2口、P3口分别接有上拉排电阻RP3、RP4和RP2;无线遥控电路D由发射模块和接收模块组成,接收器T2038CK模块的2、5、6端通过 Into source transformer circuits relevant after buck regulator and the rectifier, the rectifier further passage through the half-wave rectifying diode D9 is an external starting power contactor, external contact terminal P2 connected to 3,4, which is the low voltage power supply terminal D10 , the control input terminal of the Darlington driver chip SN75451 1,6 feet from the microprocessor CPU OUT1, OUT2 control, to control the relay J1, J2-off; C by the display circuit terminals MCOM1 microcontroller, MCOM2, MCOM3, eight D flip-flop 74LS374, choke resistors R35-R42, a light emitting diode L1-L6 and associated resistive elements receiving, by the microcontroller port RP4 foot 13, foot 12, the foot 11 to provide a digital bit line selection, RP4 port P10-P17 by eight 74LS374 D flip-flops to provide a digital line selection period, light emitting diode L1-L6 is connected to the cathode, provides a common gate line by the microcontroller 10 pin port P3, the light emitting diode anode connected 74LS374, the software controlling the microcontroller through the light-emitting diodes whether the gate, the microcontroller port P1, P2 port, P3 port row respectively have pull resistor RP3, RP4 and RP2; wireless remote control circuit D from the transmitter module and receiver module, 2,5,6 end module via the receiver T2038CK 密特反向器74LS14的C-COM、C-ON、C-OFF端子送入微处理器CPU;智能控制电路E由微处理器CPU、监视芯片X25045、施密特反向器74LS14、集成电路LM331及相关容阻元件组成,集成电路LM331及相关容阻元件将电流电压经过电压频率转换成脉冲信号送到微处理器计数器输入端,微处理器CPU将转换后的三相电源脉冲信号进行实时处理由显示单元显示出来,并通过输出接口给控制单元发送信号,实现系统控制。 Schmitt inverter of C-COM 74LS14, C-ON, C-OFF terminal of the CPU into the microprocessor; intelligent circuit E controlled by a microprocessor CPU, monitor the chip X25045, Schmitt inverter 74LS14, LM331 IC and associated resistive elements receiving, accommodating an integrated circuit LM331 and related current-voltage conversion resistor element after the voltage into a pulse signal to the microprocessor counter input frequency, three-phase power pulse signal microprocessor converts real-time processing CPU It is displayed by the display unit, and sends a signal to the control unit via an output interface, system control.
CN 03213692 2003-06-19 2003-06-19 Multifunctional protector for beam-pumping unit CN2638310Y (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101409553B (en) * 2008-11-20 2010-12-08 四川和芯微电子股份有限公司 Phase delay line structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101409553B (en) * 2008-11-20 2010-12-08 四川和芯微电子股份有限公司 Phase delay line structure

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