CN202570667U - Ultrasonic intelligent cleaning system for oilfield pipelines - Google Patents
Ultrasonic intelligent cleaning system for oilfield pipelines Download PDFInfo
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- CN202570667U CN202570667U CN 201220090164 CN201220090164U CN202570667U CN 202570667 U CN202570667 U CN 202570667U CN 201220090164 CN201220090164 CN 201220090164 CN 201220090164 U CN201220090164 U CN 201220090164U CN 202570667 U CN202570667 U CN 202570667U
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Abstract
The utility model discloses an ultrasonic intelligent cleaning system for oilfield pipelines, which comprises an ultrasonic power supply, an impedance matching circuit, a transducer and a sensor, wherein the ultrasonic power supply generates frequency signals, amplifies the frequency signals to reach a required power, and then transmits the frequency signals to the transducer through a cable; in the process of signal transmitting, the impedance matching circuit carries out matching on the impedances and resonant frequencies of the ultrasonic power supply and the transducer; the transducer is arranged on the inner wall of a pipeline, the transducer converts the received frequency signals into sound signals for descaling; and the sensor and the transducer are arranged together, and the sensor is used for detecting the parameters of the transducer in the process of operating. According to the ultrasonic intelligent cleaning system disclosed by the utility model, the purpose of descaling in oilfield pipelines is achieved through adopting the sound-amplitude of ultrasonic waves; and due to the application of the system, the cost of cleaning reduced, an effect of environmental conservation is achieved, the operating efficiency is improved, and the yield is increased.
Description
Technical field
The utility model relates to a kind of sonic cleaning system, relates in particular to a kind of ultrasonic intelligent cleaning system that is used for oil field pipe, belongs to the duct cleaning technical field.
Background technology
In the petroleum chemical industry equipment with regard to quantity the overwhelming majority be cold exchange device, tube bank, pipeline, heat exchanger, tank body etc.Scale problems is a great problem of puzzlement petrochemical industry always.At present, descaling method commonly used roughly is divided three classes, and the one, chemical cleaning; The 2nd, the high-pressure water jet scale removal; The 3rd, mechanical descaling; General effect is significantly, still has bigger deficiency.
1. chemical cleaning
Chemical cleaning is according to the chemical composition of dirt layer, selects for use suitable acids chemical agent to dissolve scale removal.In recent years, to typical barium sulfate, the insoluble dirt of strontium sulfate mixed type acid, Barium antisludging agent and Barium scale washing agent have successively been developed, extensive use on pipeline.
But, because the composition of dirt is different, general scale remover restricted application.Simultaneously, the chemical cleaning complex process, fragile pipeline in work progress, therefore contaminated environment and time are long, cost is high, need also that further research is efficient, environmental protection, chemical detergent that applicability is strong.
2. high-pressure water jet scale removal
The high-pressure water jet scale removal is that the water under high pressure that utilizes plunger displacement pump to produce sprays to the dirt layer through special nozzle, and scale removal is thorough, and efficient is high.But installed capacity is big, and water consumption is many, has problems such as water treatment, also can't fast and safely arrange dirt after the cleaning.
3. mechanical descaling
Mechanical descaling adopts powerful wiper, and magnetic force wiper, nail wheel wiper and brush wheel wiper etc. are arranged.The wiper scale removal compare with other scale removal mode have easy and simple to handle, price is low, short construction period, the workmen is few, construction equipment is simple, intensity is low, characteristics such as pollution-free.But wiper is a rectilinear motion, clean out and manage interior dirt layer, generally needs 5～6 times, reaches 10 times sometimes, and pigging efficient is low, and is of poor quality.
Usually adopt chemical agent to carry out Treatment of Industrial Water, make the scale problems of equipment obtain certain improvement.But because the fouling of equipment tube bank is caused by multiple factor; Such as: leakage phenomenon etc. is emitted in water quality, tube bank material, outlet temperature, inflow, flow velocity and the race that occurs often; To form various dirts; So the order of severity of equipment scaling is different, even become a great problem that influence is produced.Chemical method can be controlled the whole circulation water system effectively, and physical method (ultrasonic antiscaling) also will be necessary as replenishing.
Summary of the invention
The utility model is to the defective that prior art exists a kind of ultrasonic intelligent cleaning system that is used for oil field pipe to be provided.
The utility model is for realizing above-mentioned purpose; Adopt following technical scheme: a kind of ultrasonic intelligent cleaning system that is used for oil field pipe; Comprise ultrasonic power, impedance matching circuit, transducer and sensor, said ultrasonic power produces frequency signal, and the frequency signal amplification is reached desired power; Through cable frequency signal is conveyed into transducer then; In transmission, through said impedance matching circuit the impedance resonant frequency of ultrasonic power and transducer is mated, said transducer is installed on inner-walls of duct or the outer wall, and said transducer changes the frequency signal that receives into ultrasonic signal and carries out scale removal; Said sensor and transducer are set together, the parameter when being used to detect transducer work.
The frequency signal that said ultrasonic power produces carries out the signal conversion through D/A modular converter, pulse-width modulation circuit, impedance matching circuit successively; Signal after the said conversion becomes ultrasonic signal after getting into transducer, and said ultrasonic signal imports into through horn and carries out scale removal in the pipeline.
It is that data signal is sent into the control system that said sensor will be gathered the analog-signal transitions of coming with the working status parameter of transducer through the A/D modular converter.
The beneficial effect of the utility model: the ultrasonic intelligent cleaning system of the utility model has adopted hyperacoustic sound amplitude to reach the purpose of scale removal in oil field pipe; The use of this system not only reduces the cost of cleaning; Safeguard outside the effect of environment; Also improve operating efficiency, increased output.
Description of drawings
Fig. 1 is the ultrasonic system structure chart;
Fig. 2 transmits block diagram for ultrasonic system;
Overall schematic when Fig. 3 is applied to the oil-field flooding pipe for ultrasonic system;
Overall schematic when Fig. 4 is applied to the oil field flow string for ultrasonic system.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the described technical scheme of the utility model is done further to set forth.
The sonic cleaning system mainly is made up of ultrasonic power 1, ultrasonic transducer 4, transmission cable.But because the output of some electrical characteristics such as the impedance resonant frequency of transducer 4 and ultrasonic power 1 does not match, we also will carry out impedance matching to it, so will between ultrasonic power 1 and ultrasonic transducer 4, add an impedance matching link.Its structural representation is as shown in Figure 1.
We can find out from figure, and mainly playing of ultrasonic power 1 produces the power action of electric signals, and it changes into the ac signal of 20-30kHz with the 220V of civil power, the alternating current of 50Hz.Impedance matching circuit 2 saidly carries out the impedance matching except above-mentioned; The function that also has filtering; This is because the frequency signal that ultrasonic power 1 is produced not is accurate sine wave signal; It is the similar sinusoidal signal that contains some high fdrequency components, and transducer 4 then needs the higher sinusoidal signal of precision to carry out simple harmonic oscillation by good driving piezoceramics crystal, so the similar sinusoidal signal that needs 2 pairs of ultrasonic powers of impedance matching circuit 1 to produce is carried out LPF one time; The high fdrequency component of the similar sinusoidal signal of elimination makes transducer 4 produce stable ultrasonic signal.4 of transducers are energy conversion devices, and the electric energy that it produces ultrasonic power 1 changes into the acoustic energy of same frequency.The ultrasonic wave that transducer 4 produces imports in the pipeline in a series of effects such as pipe interior generation acoustic cavitation, activation through tube wall; Remove the grease and the incrustation scale of pipeline; Transducer 4 is executing agencies of whole system; It directly links to each other with load, and the quality of its working condition directly has influence on the effect of scale removal, in order to obtain the duty of ultrasonic transducer in real time; Some relevant parameters when having used some sensors 3 to detect the work of transducer here feed back in the control circuit so that timely whole system is adjusted.
The ultrasound wave descaling system mainly is made up of ultrasonic power 1, impedance matching circuit 2, ultrasonic transducer and sensor 3; But also need some ancillary equipment such as horn, sensor, transmission cable, transformer; They are linked together, carry out the electricity between ultrasonic power 1 and transducer 4, transducer 4 and the boiler, the transmission of acoustical signal.
The transmission block diagram of whole system is following: Fig. 2 can know; After power supply inserts ultrasonic cleaner; Carry out filter rectification earlier; Alternating current is become direct current, and the part of direct current signal offers the power supply of single-chip microcomputer as single-chip microcomputer and peripheral circuit thereof, and another part dc signal offers pulse-width modulation circuit as the power supply of pulse-width modulation circuit and the collector voltage of inversion circuit; The next step of filter rectification is to produce original frequency and power signal; This part is produced by single chip circuit; The signal that single-chip microcomputer produces is that discrete signal can't be applied directly in the transducer 4 and goes; Also to pass through D/A conversion, discrete signal become continuous analog signals could drive transducer 4 and carry out electricity, change.And the driving signal of transducer 4 not only to require be continuous analog signal, and to require be powerful sinusoidal signal, the analog signals of the method for having used pulsewidth modulation here after to the D/A conversion amplifies.Pulse-width modulation circuit is divided into pulse width modulator and inversion circuit, because the power output of ultrasonic cleaner is relatively large, the inversion circuit here adopts IG BT (insulated gate bipolar transistor) to increase the power capacity of the signal of telecommunication.
After signal advanced the amplification of pulse-width modulation circuit; Having produced a voltage is 200V; Frequency is the ac signal about 25kHz, though the frequency of this signal and power have all satisfied the requirement of transducer 4, it is not the sine wave of a single-frequency; Also contain some harmonic components and need pass through LPF, it is become a relatively single sine wave signal.2 needs of impedance matching circuit are accomplished filtering and two work of impedance matching.Signal has become ultrasonic signal by the signal of telecommunication after getting into transducer 4 through match circuit 2, imports into through tube wall and passes through cavitation in the pipeline, and effects such as shearing are gone out the incrustation scale on the duct wall.But because the amplitude of piezo-electric crystal is very little in the ultrasonic transducer, the mechanical oscillation that can't well piezo-electric crystal be produced are imported in the pipeline, between transducer 4 and pipeline, will carry out the mechanical impedance coupling.At present, be between transducer 4 and load, to add horn to the most simple and effective mechanical impedance matching process of transducer.Here the also this method that adopts is mated transducer 4.
In order to make ultrasonic system can change the working condition of self, make system be always operating at optimum state, and added controlling unit in the design according to the variation of load.System uses the working status parameter of sensor acquisition transducer; To gather the analog-signal transitions of coming through the A/D conversion is that data signal is sent into the control system; In the gatherer process of data, the method for having used hardware circuit filtering and software filtering to combine improves the precision of data acquisition.Data after gathering with after desired value is compared, are used PID to control and reduced the error between output valve and the desired value, finally make system reach the working condition of expectation.
In the practical implementation process, with filtering, the rectification of external communication electricity, the generation of frequency power signal; The D/A conversion; Pulse-width modulation circuit and part of data acquisition all are integrated on the circuit board of ultrasonic power 1, and impedance matching circuit 2 also is contained in the instrument box of ultrasonic power 1, and it is 200V that the output of power supply has only a voltage; Frequency is 25kHz; Power is the simple alternating current signal of telecommunication of 1.5kW, and this signal of telecommunication imports in the transducer 4 through cable, changes into mechanical oscillation through transducer 4 and horn again and imports among the pipeline.
Can know by Fig. 3 and Fig. 4; After power supply inserts ultrasonic cleaner; Carry out filter rectification earlier; Alternating current is become direct current, and the part of direct current signal offers the power supply of single-chip microcomputer as single-chip microcomputer and peripheral circuit thereof, and another part dc signal offers pulse-width modulation circuit as the power supply of pulse-width modulation circuit and the collector voltage of inversion circuit; The next step of filter rectification is to produce original frequency and power signal, through the D/A conversion, discrete signal is become continuous analog signals could drive transducer and carry out electricity, change.And the driving signal of transducer 4 not only to require be continuous analog signal, and to require be powerful.Signal has become ultrasonic signal by the signal of telecommunication after getting into miniature transducer through match circuit through special cable, imports into through tube wall and passes through cavitation in the pipeline, and effects such as shearing are removed the incrustation scale on the filling pipe wall, and can delay the formation time of dirt.
Claims (3)
1. the ultrasonic intelligent cleaning system that is used for oil field pipe; It is characterized in that; Comprise ultrasonic power, impedance matching circuit, transducer and sensor, said ultrasonic power produces frequency signal, and the frequency signal amplification is reached desired power; Through cable frequency signal is conveyed into transducer then; In transmission, through said impedance matching circuit the impedance resonant frequency of ultrasonic power and transducer is mated, said transducer is installed on inner-walls of duct or the outer wall, and said transducer changes the frequency signal that receives into ultrasonic signal and carries out scale removal; Said sensor and transducer are set together, the parameter when being used to detect transducer work.
2. the ultrasonic intelligent cleaning system that is used for oil field pipe according to claim 1; It is characterized in that; The frequency signal that said ultrasonic power produces carries out the signal conversion through D/A modular converter, pulse-width modulation circuit, impedance matching circuit successively; Signal after the said conversion becomes ultrasonic signal after getting into transducer, and said ultrasonic signal imports into through horn and carries out scale removal in the pipeline.
3. the ultrasonic intelligent cleaning system that is used for oil field pipe according to claim 1 is characterized in that it is that data signal is sent into the control system that said sensor will be gathered the analog-signal transitions of coming with the working status parameter of transducer through the A/D modular converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220090164 CN202570667U (en) | 2012-03-12 | 2012-03-12 | Ultrasonic intelligent cleaning system for oilfield pipelines |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220090164 CN202570667U (en) | 2012-03-12 | 2012-03-12 | Ultrasonic intelligent cleaning system for oilfield pipelines |
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| CN202570667U true CN202570667U (en) | 2012-12-05 |
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| CN 201220090164 Expired - Fee Related CN202570667U (en) | 2012-03-12 | 2012-03-12 | Ultrasonic intelligent cleaning system for oilfield pipelines |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520362A (en) * | 2018-11-12 | 2019-03-26 | 上海兴全电力技术有限公司 | Shear elastic wave passivation on line scaler system and antiscaling, descaling method |
| CN111852418A (en) * | 2020-06-11 | 2020-10-30 | 中国石油化工股份有限公司 | High-efficient ultrasonic wave oil reservoir processing system |
| CN113731942A (en) * | 2021-09-09 | 2021-12-03 | 南京大学 | Ultrasonic device for removing embolus in pipeline by phase control deflection focusing and control method |
-
2012
- 2012-03-12 CN CN 201220090164 patent/CN202570667U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109520362A (en) * | 2018-11-12 | 2019-03-26 | 上海兴全电力技术有限公司 | Shear elastic wave passivation on line scaler system and antiscaling, descaling method |
| CN109520362B (en) * | 2018-11-12 | 2020-10-23 | 上海兴全电力技术有限公司 | Shear elastic wave online scale prevention and removal system and scale prevention and removal method |
| CN111852418A (en) * | 2020-06-11 | 2020-10-30 | 中国石油化工股份有限公司 | High-efficient ultrasonic wave oil reservoir processing system |
| CN111852418B (en) * | 2020-06-11 | 2022-05-31 | 中国石油化工股份有限公司 | High-efficient ultrasonic wave oil reservoir processing system |
| CN113731942A (en) * | 2021-09-09 | 2021-12-03 | 南京大学 | Ultrasonic device for removing embolus in pipeline by phase control deflection focusing and control method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20130312 |