CN103244076A - Single-chip microcomputer based electromagnetic paraffin control device - Google Patents
Single-chip microcomputer based electromagnetic paraffin control device Download PDFInfo
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- CN103244076A CN103244076A CN2013101531658A CN201310153165A CN103244076A CN 103244076 A CN103244076 A CN 103244076A CN 2013101531658 A CN2013101531658 A CN 2013101531658A CN 201310153165 A CN201310153165 A CN 201310153165A CN 103244076 A CN103244076 A CN 103244076A
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Abstract
The invention discloses a single-chip microcomputer based electromagnetic paraffin control device and belongs to the technical field of automatic paraffin removal of oil fields. The single-chip microcomputer based electromagnetic paraffin control device comprises a power device and a magnetic thermal conversion device, and is characterized in that the power device comprises a single-chip microcomputer, a power amplifying circuit, a current detecting circuit, an overvoltage detecting circuit and an overheat detecting circuit. The power amplifying circuit, the current detecting circuit, the overvoltage detecting circuit, the overheat detecting circuit, a sweep-frequency range setting circuit and a PWM (pulse width modulation) signal output circuit are respectively connected with the single-chip microcomputer. The sweep-frequency range setting circuit is connected with the PWM signal output circuit, and the PWM signal output circuit is connected with an I/O (input/output) port of the single-chip microcomputer. A direct-current power source is respectively connected with the single-chip microcomputer, the power amplifying circuit, the current detecting circuit, the overvoltage detecting circuit, the overheat detecting circuit, the sweep-frequency range setting circuit and the PWM signal output circuit. The single-chip microcomputer based electromagnetic paraffin control device can solve the problem that existing electromagnetic paraffin control devices cannot be used for various oil fields in the prior art, and users can set different sweep frequency ranges of the paraffin control device by themselves according to different oil fields so as to realize paraffin control.
Description
Technical field
The present invention relates to the wax-proofing apparatus, particularly a kind of SCM Based electromagnetism wax-proofing apparatus that use in a kind of oil field, belong to oil field clear cured technical field automatically.
Background technology
The oil field is when exploitation, and wax separates precipitation and comes out from oil, and the continuous deposition of wax just causes stopping up oil-producing formation, oil well and oil pipeline, output is descended, even cause stopping production to bring very big trouble to production.Oil well paraffinication is to influence one of outstanding problem of high output of oilwell stable yields, seeks reasonable method and solves the problem that runs in the production of hydrocarbons and become urgent problem in the oilfield exploitation.
Though at present dewaxing method commonly used mainly contains mechanical paraffin removal, heating power wax removal, these three kinds of methods of paraffin removing with chemical method and has removed wax to a certain extent, but time-consuming taking a lot of work do not say that some has also caused pollution to environment to a certain extent, all can not fundamentally solve the problem of oil field wax deposition.
Along with the continuous development of electromagnetic induction heating technology, it is found that electromagnetic field can change the microstructure of a lot of molecules, so constantly emerge in large numbers with the wax control instrument of electromagnetic induction heating.But because the complexity of wax deposition composition, although the multiple mechanism of electromagnetism wax control, but also there is not unified research final conclusion so far, unique method is the different situations according to different oil fields, adopt different capacity, the electromagnetism wax control instrument of different swept frequency ranges, this has increased the maintenance difficulties of user's financial burden and instrument undoubtedly.
Number of patent application is 200920029588.8, denomination of invention is: " the clear wax control instrument of wound form frequency sweep electromagnetism " discloses a kind of clear wax-proofing apparatus, this device mainly is made up of power supply, swept-frequency signal main frame and external pipeline winding around, described external pipeline winding around is wound into above the gathering line that needs clear wax control, both sides fixed coil fixation clamp, the output of swept-frequency signal main frame is connected with the two ends of external pipeline winding around respectively with input, swept-frequency signal main frame external power supply is powered.The shell of above-mentioned swept-frequency signal main frame is explosion-proof casing, and digital integrated electronic circuit frequency modulation frequency converter is equipped with in inside.Above-mentioned digital integrated electronic circuit frequency modulation frequency converter adopts PIC16F series monolithic and peripheral circuit to form.This device adopts the PIC16F Series chip, and not only speed is slow and function is incomplete as the core device, and very high integrated level can not be arranged.
Summary of the invention
For defective and the deficiency that overcomes prior art, the invention provides a kind of SCM Based electromagnetism wax-proofing apparatus, can solve the situation that electromagnetism wax control instrument in the prior art can not apply to various oil fields, situation according to different oil fields, the user can set up the different scanning frequency range of wax-proofing apparatus on their own, thereby reaches the purpose of effective wax control.
Technical scheme of the present invention is as follows:
A kind of SCM Based electromagnetism wax-proofing apparatus, comprise the hot conversion equipment of supply unit and magnetic, it is characterized in that supply unit comprises that single-chip microcomputer, power amplification circuit, current detection circuit, over-voltage detection circuit, overheating detection circuit, frequency sweep frequency range arrange circuit, pwm signal output circuit and dc source, wherein power amplification circuit, current detection circuit, over-voltage detection circuit, overheating detection circuit, frequency sweep frequency range arrange circuit, the pwm signal output circuit is connected with single-chip microcomputer respectively; The frequency sweep frequency range arranges circuit and is connected with the pwm signal output circuit, and the pwm signal output circuit is connected to the I/O mouth of single-chip microcomputer; Dc source arranges circuit with single-chip microcomputer, power amplification circuit, current detection circuit, over-voltage detection circuit, overheating detection circuit, frequency sweep frequency range respectively, the pwm signal output circuit is connected and thinks that it provides direct current; Power amplification circuit mainly comprises power driver module EXB841 and two IGBT, and power driver module EXB841 is connected with two IGBT; The frequency sweep frequency range arranges circuit and comprises frequency generating circuit and manually select to set frequency range, frequency generating circuit composes in parallel the RC oscillating circuit by resistance, electric capacity, manually select to set frequency range and be divided into fourth gear, select concussion frequency in the oscillating circuit by changing 4 capacitances in the above-mentioned capacitance-resistance oscillating circuit; Wherein frequency generating circuit is received single-chip microcomputer, manually selects to set frequency range and links to each other with the pwm signal output circuit of single-chip microcomputer by band switch; The pwm signal output circuit is to produce the pwm signal of two-way complementation by the inner PWM output channel of single-chip microcomputer and dutycycle; Current detection circuit is linked in sequence by mutual inductor, plastic filter circuit, comparator, filter circuit and Schmidt trigger and forms, and its output is connected to single-chip microcomputer; Over-voltage detection circuit is linked in sequence by filter capacitor, current-limiting resistance, phototriode and forms, and its input is connected with the power amplification circuit output, and the output of phototriode is connected to single-chip microcomputer; Overheating detection circuit comprises thermistor and voltage comparator, and wherein thermistor is connected to the input of voltage comparator, and the output of voltage comparator links to each other with single-chip microcomputer; The hot conversion equipment of magnetic comprises stainless steel tube, insulating heat-conductive cloth and enameled wire loop, and enameled wire loop is wrapped on the stainless steel tube, the isolation so that it insulate by insulating heat-conductive cloth pad between; The stainless steel tube two ends have flange, stainless steel tube can be fixed on the oil pipeline by flange; Enameled wire loop in the hot conversion equipment of magnetic is connected to the output of power amplification circuit as the load of power amplification circuit; Thermistor in the overheating detection circuit and the mutual inductor in the current detection circuit all are fixed on the enameled wire loop of the hot conversion equipment of magnetic; The power LED display is connected on the dc source, and overcurrent light-emitting diode display, overvoltage light-emitting diode display and overheated light-emitting diode display are connected on the I/O mouth of single-chip microcomputer.
Described single-chip microcomputer is that model is the single-chip microcomputer of dsPIC30F4012.
Frequency sweep frequency range of the present invention arranges circuit and links to each other with the pwm signal output circuit of single-chip microcomputer by the fourth gear band switch, and the user can select different swept frequency ranges according to different field situations, and wherein swept frequency range is between the 500HZ-35KHZ.Overheating detection circuit is to utilize the height of thermistor sensing temperature to convert the size of resistance value to, the height of voltage will be become in its place in circuit, the magnitude of voltage that in-phase end by voltage comparator and end of oppisite phase are set compare when the temperature height be to overturn, again this output is inserted the I/O mouth of single-chip microcomputer; Over-current detection circuit is to obtain current signal on the outputting inductance coil by current transformer, become direct current signal by voltage stabilizing, rectification, filtering and receive output that the voltage of the in-phase input end of comparator and inverting input setting compares it and carry out shaping by the input that filtering enters Schmidt trigger again, become the AD mouth that a voltage signal is received single-chip microcomputer.When electric current is excessive, will closes the PWM waveform its circuit is not worked.Described overheating detection circuit is the temperature signal of taking from the hot conversion equipment of magnetic and fin place, delivers to the AD mouth place of dsPIC single-chip microcomputer after the processing.The voltage that over-voltage detection circuit is taken from the power amplification circuit output becomes+15V through rectifying and wave-filtering, this electricity is by a capacitor filtering, resistance current limliting, when big voltage, mark+15V voltage will raise, phototriode work this moment, make the level at output CPU1.23 place by high step-down, this signal is sent into single-chip microcomputer control.
Described IGBT (Insulated Gate Bipolar Transistor), insulated gate bipolar transistor, by the compound full-control type voltage driven type power semiconductor that BJT (double pole triode) and MOS (insulating gate type field effect tube) form, have the advantage of low conduction voltage drop two aspects of the high input impedance of MOSFET and GTR concurrently.The GTR saturation pressure reduces, and current carrying density is big, but drive current is bigger; The MOSFET driving power is very little, and switching speed is fast, but conduction voltage drop is big, and current carrying density is little.IGBT combines the advantage of above two kinds of devices, and the little and saturation pressure of driving power reduces.Be fit to very much to be applied to DC voltage and be fields such as 600V and above converter system such as alternating current generator, frequency converter, Switching Power Supply, lighting circuit, traction transmission.
Above-mentioned PWM is the english abbreviation of pulse width modulation.
Wax-proofing apparatus of the present invention is connected the stainless steel tube of the hot conversion equipment of the magnetic flange by its two ends in use with petroleum pipeline.
Beneficial effect of the present invention is as follows:
Adopt high-performance dsPIC30F4012 single-chip microcomputer not only to make the working stability of system save the confined space of circuit board, and provide guarantee for the confidentiality of the technology of the upgrading of product and our company; Adopt scan frequency frequency-division section mode, can make that the instrument treatment effect is more obvious according to the nonlinear characteristic of electromagnetism wax control instrument effect under the different situations in different oil fields, versatility is more extensive;
Defencive function of the present invention is complete, and contains the automated power control technology.Recently guarantee the power invariability of this device by the duty of regulating the PWM waveform that the dsPIC30F4012 single-chip microcomputer produces, realize automated power control.
Description of drawings
Fig. 1 is the structural representation block diagram of supply unit of the present invention.
Wherein: 1, single-chip microcomputer, 2, power amplification circuit, 3, overcurrent, overvoltage, overheated light-emitting diode display, 4, current detection circuit, 5, overheating detection circuit, 6, over-voltage detection circuit, 7, the frequency sweep frequency range arranges circuit, and 8, the pwm signal output circuit, 9, dc source.
Fig. 2 is the structural representation of the hot conversion equipment of magnetic of the present invention.
Wherein: 10, flange, 11, stainless steel tube, 12, enameled wire loop.
Fig. 3 is the main circuit diagram of power amplification circuit of the present invention.Power amplification circuit mainly comprises power driver module EXB841 and two IGBT, and power driver module EXB841 is connected with two IGBT; Inductance wherein is the inductance coil in the hot conversion equipment of magnetic.
Fig. 4 is employed high performance dsPIC30F4012 single-chip microcomputer external circuits pinouts among the present invention, and wherein pin one 0,11,14 links to each other with the overcurrent demonstration of light-emitting diode display, overheated demonstration and overvoltage demonstration respectively; Pin one 2 is signal input parts of over-current detection circuit; Pin one 6 is signal output parts of over-current detection circuit; Pin two 1,22 is the pwm signal output; Pin one 7 is inputs of voltage detection signal; Pin two 0 is the output of voltage detection signal; Pin 4 is overheated test sides; Pin 6 is IGBT fault detect and protection end; Pin 7,8,9,13, the 15th, the frequency sweep frequency range arranges circuit; Wherein 2,3 is dead end; Pin one is that the current potential resetting pin is received+the 5V power supply by two resistance, receives two series resistance ends to ground by an electric capacity again; To ground, receive two ends by a resistance respectively is that resistance centre is on the adjustable end of an adjustable resistance to pin 5 by electric capacity; Pin one 8,19 pin link to each other by crystal oscillator, respectively by capacity earth, constitute external crystal oscillation circuit again; Pin two 3,24,25 all links to each other with ground; Pin two 6,27,28 all links to each other with+5V power supply, carries out filtering to ground by electric capacity respectively again.
Fig. 5 is LED display circuit figure; Wherein: top one for the power LED display is connected on the power supply, and following three are respectively overcurrent light-emitting diode display, overvoltage light-emitting diode display and overheated light-emitting diode display, are connected respectively on the I/O mouth of single-chip microcomputer.R55, R56.1, R57, R58 are respectively current-limiting resistance among Fig. 5.
Fig. 6 is over-current detection circuit figure, it is to obtain current signal on the inductance coil of output of power amplification circuit by current transformer T2, become in-phase input end and the inverting input that direct current signal is received comparator U2C by voltage stabilizing, rectification, filtering, compare its output of back with the voltage that arranges and carry out shaping by the input that R20, C16 filtering enter Schmidt trigger U3A again, become a voltage signal and receive through a resistance R 19 on the AD mouth of single-chip microcomputer.When electric current is excessive, will closes the PWM waveform its circuit is not worked.
Fig. 7 is over-voltage detection circuit figure, over-voltage detection circuit is linked in sequence and is formed by filter capacitor C28, current-limiting resistance R52, phototriode, its input is connected with the power amplification circuit output, the output of phototriode is connected to single-chip microcomputer, C39 is the output filter capacitor of phototriode, the current-limiting resistance when R53 is connected between the output of phototriode and the 5V power supply and powers for phototriode.When big voltage, mark+15V voltage will raise, and this moment, phototriode work made the level at output CPU1.23 place by high step-down, and this signal is admitted to single-chip microcomputer.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples, but be not limited thereto.
Embodiment:
The invention process is for example shown in Fig. 1-7, a kind of SCM Based electromagnetism wax-proofing apparatus, comprise the hot conversion equipment of supply unit and magnetic, it is characterized in that supply unit comprises that single-chip microcomputer 1, power amplification circuit 2, current detection circuit 4, over-voltage detection circuit 6, overheating detection circuit 5, frequency sweep frequency range arrange circuit 7, pwm signal output circuit 8 and dc source 9, wherein power amplification circuit 2, current detection circuit 4, over-voltage detection circuit 6, overheating detection circuit 5, frequency sweep frequency range arrange circuit 7, pwm signal output circuit 8 and are connected with single-chip microcomputer 1 respectively; The frequency sweep frequency range arranges circuit 7 and is connected with pwm signal output circuit 8, and pwm signal output circuit 8 is connected to the I/O mouth of single-chip microcomputer 1; Dc source 9 arranges circuit 7 with single-chip microcomputer 1, power amplification circuit 2, current detection circuit 4, over-voltage detection circuit 6, overheating detection circuit 5, frequency sweep frequency range respectively, pwm signal output circuit 8 is connected and thinks that it provides direct current; Power amplification circuit 2 mainly comprises power driver module EXB841 and two IGBT, and power driver module EXB841 is connected with two IGBT; The frequency sweep frequency range arranges circuit 7 and comprises frequency generating circuit and manually select to set frequency range, frequency generating circuit composes in parallel the RC oscillating circuit by resistance, electric capacity, manually select to set frequency range and be divided into fourth gear, select concussion frequency in the oscillating circuit by changing 4 capacitances in the above-mentioned capacitance-resistance oscillating circuit; Wherein frequency generating circuit is received single-chip microcomputer 1, manually selects to set frequency range and links to each other with the pwm signal output circuit 8 of single-chip microcomputer 1 by band switch; Pwm signal output circuit 8 is to produce the pwm signal of two-way complementation by the inner PWM output channel of single-chip microcomputer and dutycycle; Current detection circuit 4 is linked in sequence by mutual inductor, plastic filter circuit, comparator, filter circuit and Schmidt trigger and forms, and its output is connected to single-chip microcomputer 1; Over-voltage detection circuit 6 is linked in sequence by filter capacitor, current-limiting resistance, phototriode and forms, and its input is connected with power amplification circuit 2 outputs, and the output of phototriode is connected to single-chip microcomputer 1; Overheating detection circuit 5 comprises thermistor and voltage comparator, and wherein thermistor is connected to the input of voltage comparator, and the output of voltage comparator links to each other with single-chip microcomputer 1; The hot conversion equipment of magnetic comprises stainless steel tube 11, insulating heat-conductive cloth and enameled wire loop 12, and enameled wire loop 12 is wrapped on the stainless steel tube 11, the isolation so that it insulate by insulating heat-conductive cloth pad between; Stainless steel tube 11 two ends have flange 10, stainless steel tube 11 can be fixed on the oil pipeline by flange 10; Enameled wire loop 12 in the hot conversion equipment of magnetic is connected to the output of power amplification circuit 2 as the load of power amplification circuit 2; Mutual inductor in thermistor in the overheating detection circuit 5 and the current detection circuit 4 all is fixed on the enameled wire loop 12 of the hot conversion equipment of magnetic; The power LED display is connected on the dc source, and overcurrent, overvoltage and overheated light-emitting diode display 3 are connected respectively on the I/O mouth of single-chip microcomputer.
Described single-chip microcomputer 1 is that model is the single-chip microcomputer of dsPIC30F4012.
Claims (2)
1. SCM Based electromagnetism wax-proofing apparatus, comprise the hot conversion equipment of supply unit and magnetic, it is characterized in that supply unit comprises that single-chip microcomputer, power amplification circuit, current detection circuit, over-voltage detection circuit, overheating detection circuit, frequency sweep frequency range arrange circuit, pwm signal output circuit and dc source, wherein power amplification circuit, current detection circuit, over-voltage detection circuit, overheating detection circuit, frequency sweep frequency range arrange circuit, the pwm signal output circuit is connected with single-chip microcomputer respectively; The frequency sweep frequency range arranges circuit and is connected with the pwm signal output circuit, and the pwm signal output circuit is connected to the I/O mouth of single-chip microcomputer; Dc source arranges circuit with single-chip microcomputer, power amplification circuit, current detection circuit, over-voltage detection circuit, overheating detection circuit, frequency sweep frequency range respectively, the pwm signal output circuit is connected and thinks that it provides direct current; Power amplification circuit mainly comprises power driver module EXB841 and two IGBT, and power driver module EXB841 is connected with two IGBT; The frequency sweep frequency range arranges circuit and comprises frequency generating circuit and manually select to set frequency range, frequency generating circuit composes in parallel the RC oscillating circuit by resistance, electric capacity, manually select to set frequency range and be divided into fourth gear, select concussion frequency in the oscillating circuit by changing 4 capacitances in the above-mentioned capacitance-resistance oscillating circuit; Wherein frequency generating circuit is received single-chip microcomputer, manually selects to set frequency range and links to each other with the pwm signal output circuit of single-chip microcomputer by band switch; The pwm signal output circuit is to produce the pwm signal of two-way complementation by the inner PWM output channel of single-chip microcomputer and dutycycle; Current detection circuit is linked in sequence by mutual inductor, plastic filter circuit, comparator, filter circuit and Schmidt trigger and forms, and its output is connected to single-chip microcomputer; Over-voltage detection circuit is linked in sequence by filter capacitor, current-limiting resistance, phototriode and forms, and its input is connected with the power amplification circuit output, and the output of phototriode is connected to single-chip microcomputer; Overheating detection circuit comprises thermistor and voltage comparator, and wherein thermistor is connected to the input of voltage comparator, and the output of voltage comparator links to each other with single-chip microcomputer; The hot conversion equipment of magnetic comprises stainless steel tube, insulating heat-conductive cloth and enameled wire loop, and enameled wire loop is wrapped on the stainless steel tube, the isolation so that it insulate by insulating heat-conductive cloth pad between; The stainless steel tube two ends have flange, stainless steel tube can be fixed on the oil pipeline by flange; Enameled wire loop in the hot conversion equipment of magnetic is connected to the output of power amplification circuit as the load of power amplification circuit; Thermistor in the overheating detection circuit and the mutual inductor in the current detection circuit all are fixed on the enameled wire loop of the hot conversion equipment of magnetic; The power LED display is connected on the dc source, and overcurrent light-emitting diode display, overvoltage light-emitting diode display and overheated light-emitting diode display are connected on the I/O mouth of single-chip microcomputer.
2. a kind of SCM Based electromagnetism wax-proofing apparatus as claimed in claim 1 is characterized in that described single-chip microcomputer is that model is the single-chip microcomputer of dsPIC30F4012.
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| CN201310153165.8A CN103244076B (en) | 2013-04-27 | 2013-04-27 | A kind of SCM Based electromagnetic wax-proofing device |
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| CN201310153165.8A CN103244076B (en) | 2013-04-27 | 2013-04-27 | A kind of SCM Based electromagnetic wax-proofing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110941226A (en) * | 2019-12-27 | 2020-03-31 | 山东聊城金泰节能科技有限公司 | Crude oil pipeline anti-blocking device based on single chip microcomputer control |
| CN111059474A (en) * | 2019-12-27 | 2020-04-24 | 山东聊城金泰节能科技有限公司 | Crude oil conveying pipeline monitoring system and implementation method thereof |
| CN111336344A (en) * | 2020-05-18 | 2020-06-26 | 东营同博石油电子仪器有限公司 | Crude oil production and transportation pipeline full-sweep frequency electromagnetic paraffin control scale and corrosion inhibition device |
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| CN111336344A (en) * | 2020-05-18 | 2020-06-26 | 东营同博石油电子仪器有限公司 | Crude oil production and transportation pipeline full-sweep frequency electromagnetic paraffin control scale and corrosion inhibition device |
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| CN103244076B (en) | 2015-08-05 |
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Application publication date: 20130814 Assignee: COMPASS QIMING (BEIJING) ENERGY SCIENCE AND TECHNOLOGY SERVICE CO., LTD. Assignor: Shandong Liaocheng Jintai Energy-saving Technology Co., Ltd. Contract record no.: 2016990000004 Denomination of invention: Single-chip microcomputer based electromagnetic paraffin control device Granted publication date: 20150805 License type: Exclusive License Record date: 20160111 |
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