CN201246873Y - Induction heating system of petroleum pipeline - Google Patents
Induction heating system of petroleum pipeline Download PDFInfo
- Publication number
- CN201246873Y CN201246873Y CNU2008200379037U CN200820037903U CN201246873Y CN 201246873 Y CN201246873 Y CN 201246873Y CN U2008200379037 U CNU2008200379037 U CN U2008200379037U CN 200820037903 U CN200820037903 U CN 200820037903U CN 201246873 Y CN201246873 Y CN 201246873Y
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- voltage
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- inverter
- induction heating
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- General Induction Heating (AREA)
Abstract
The utility model discloses an induction heating system of an oil pipeline in the technical field of the oil gathering and transportation, which comprises a main circuit and a feedback circuit, wherein the power supply circuit in the main circuit can supply three-phase industrial frequency voltage to a three-phase rectifier, three-phase industrial frequency voltage is transformed into direct current voltage which is output to a filter after the rectification, direct current voltage is transformed into single-phase intermediate frequency alternating current voltage with adjustable frequency and dutycycle after the filtering, and then is transmitted to an isolation transformer, and then is output to an induction heating coil after being transformed by the isolation transformer, wherein the induction heating coil is wound outside the oil pipeline. The feedback circuit comprises a current transducer, a control circuit and a driving circuit, wherein the current transducer is used to collect the intermediate frequency current signals of the induction heating coil, and then to transmit to an inverter after passing through the control circuit and the driving circuit in turn for controlling the switching frequency and the dutycycle of the inverter. When in work, the induction heating coil is electrified with single-phase intermediate frequency alternating current voltage to heat ferromagnetic oil pipelines. The utility model has simple structure and low construction cost, which can be used in the oil exploration and transportation.
Description
Technical field
The utility model relates to the collection of ground, oil field crude oil, conveying technology field.
Background technology
The crude oil transmission flow process in oil field adopts three pipe companion thermal flow processes always, promptly one is petroleum pipeline, one is jet chimney, also having one is water return pipeline, and its steam that utilizes burning in boiler to go out is imported in the jet chimney, and jet chimney lays along petroleum pipeline, during steam process jet chimney, but this petroleum pipeline is heated, but the oil in the indirect petroleum pipeline, and live in the water bag of boiler once more from water return pipeline in steam self cooling back.At present, what well station, scale oil district the process development generally adopted is the construction mode of major station central heating, well station three pipe flow processs, and its advantage is a convenient management, and wellhead back pressure is low, the defeated distance of collection, drive a well after the operation and oil well measurement all very convenient.But shortcoming also is conspicuous:
One-time investment is excessive.
Life cycle is short, and all there is inside and outside corrosion phenomenon in the oil pipeline water pipeline, when pipeline is changed often three pipes to change the renewal cost height simultaneously.
The energy consumption height, heat insulation effect is poor, and radiation loss is big, and especially water network zone is all the more so.
Can not adapt to rolls expands the needs on limit, and heat supply is apart from after elongating, and radiation loss is big.
Individual well draws oil well flow process complexity, and investment is big, management inconvenience.
The utility model content
The purpose of this utility model is to provide a kind of heating system that overcomes the petroleum pipeline of above-mentioned defective, makes the one-time investment of pipe-line system little, management is convenient, thermal losses is little.
For achieving the above object, the heating system of the petroleum pipeline that the utility model provides comprises main circuit and feedback circuit, and described main circuit comprises power circuit, three-phase rectifier, wave filter, inverter, isolating transformer and load coil; Power circuit offers three-phase rectifier with three-phase main-frequency voltage, after rectification, become DC voltage and export to wave filter, DC voltage offers inverter after filtering, inverter becomes dc voltage conversion the single-phase midfrequent AC voltage of frequency and EDM Generator of Adjustable Duty Ratio, and single-phase midfrequent AC voltage passed to isolating transformer, after the isolating transformer transformation single-phase midfrequent AC voltage is exported to load coil, load coil is wrapped in outside the petroleum pipeline; Described feedback circuit comprises current sensor, control circuit and drive circuit, current sensor is gathered the electric current of intermediate frequency signal of load coil, pass to inverter through control circuit, drive circuit after handling successively, in order to the switching frequency and the dutycycle of control inverter.
Compared with prior art, the utility model changes over electric heating system with steam pipeline system, it is simple in structure, control is convenient, pipeline and circuit lay conveniently, safe and reliable, life-span is long, be easy to the automation temperature control, the heat energy utilization rate is higher, construction costs is lower, and this has significance for construction investment and operating cost of reducing gathering line.
Description of drawings
Fig. 1 is the utility model fundamental diagram
Fig. 2 is the structural representation of load coil and petroleum pipeline.
The specific embodiment
As Fig. 1 and 2, be the heating system of petroleum pipeline, comprise main circuit and feedback circuit, described main circuit comprises power circuit, three-phase rectifier, wave filter, inverter, isolating transformer and load coil 1; Power circuit offers three-phase rectifier with three-phase main-frequency voltage, after rectification, become DC voltage and export to wave filter, DC voltage offers inverter after filtering, inverter becomes dc voltage conversion the single-phase midfrequent AC voltage of frequency and EDM Generator of Adjustable Duty Ratio, and single-phase midfrequent AC voltage passed to isolating transformer, after the isolating transformer transformation single-phase midfrequent AC voltage is exported to load coil 1, load coil 1 is wrapped in outside the petroleum pipeline 2; Described feedback circuit comprises current sensor, control circuit and drive circuit, current sensor is gathered the electric current of intermediate frequency signal of load coil 1, pass to inverter through control circuit, drive circuit after handling successively, in order to the switching frequency and the dutycycle of control inverter.
During work, inverter produces medium frequency alternating current, is transferred to the petroleum pipeline 2 outer load coils 1 that twine after the transformation, forms the intermediate frequency alternating magnetic field, and in the intermediate frequency alternating magnetic field, ferromagnetic material will be responded to heating.The general steel pipes welding of petroleum pipeline 2 is linked to be, and is ferromagnetic material, thereby heater is a petroleum pipeline 2 self.Because the heat that sends of petroleum pipeline 2 can be directly passed to medium-oil in the pipe, therefore the utlity model has efficient height, automaticity height, pollution-free, be easy to realize the local heat and the advantage of heating continuously.
Claims (1)
1, the heating system of petroleum pipeline is characterized in that: comprise main circuit and feedback circuit, described main circuit comprises power circuit, three-phase rectifier, wave filter, inverter, isolating transformer and load coil; Power circuit offers three-phase rectifier with three-phase main-frequency voltage, after rectification, become DC voltage and export to wave filter, DC voltage offers inverter after filtering, inverter becomes dc voltage conversion the single-phase midfrequent AC voltage of frequency and EDM Generator of Adjustable Duty Ratio, and single-phase midfrequent AC voltage passed to isolating transformer, after the isolating transformer transformation single-phase midfrequent AC voltage is exported to load coil, load coil is wrapped in outside the petroleum pipeline; Described feedback circuit comprises current sensor, control circuit and drive circuit, current sensor is gathered the electric current of intermediate frequency signal of load coil, pass to inverter through control circuit, drive circuit after handling successively, in order to the switching frequency and the dutycycle of control inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200379037U CN201246873Y (en) | 2008-06-05 | 2008-06-05 | Induction heating system of petroleum pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200379037U CN201246873Y (en) | 2008-06-05 | 2008-06-05 | Induction heating system of petroleum pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201246873Y true CN201246873Y (en) | 2009-05-27 |
Family
ID=40730695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200379037U Expired - Fee Related CN201246873Y (en) | 2008-06-05 | 2008-06-05 | Induction heating system of petroleum pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201246873Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625505A (en) * | 2012-04-18 | 2012-08-01 | 天津工业大学 | Eddy current antifreezing system of open-air pipeline |
| CN103174940A (en) * | 2013-02-16 | 2013-06-26 | 濮阳中石集团有限公司 | Oil pipeline electromagnetic heater and application method thereof |
| CN110803338A (en) * | 2019-11-22 | 2020-02-18 | 安徽百盛源包装材料有限公司 | Conveying pipeline for liquid agent packaging |
-
2008
- 2008-06-05 CN CNU2008200379037U patent/CN201246873Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102625505A (en) * | 2012-04-18 | 2012-08-01 | 天津工业大学 | Eddy current antifreezing system of open-air pipeline |
| CN103174940A (en) * | 2013-02-16 | 2013-06-26 | 濮阳中石集团有限公司 | Oil pipeline electromagnetic heater and application method thereof |
| CN110803338A (en) * | 2019-11-22 | 2020-02-18 | 安徽百盛源包装材料有限公司 | Conveying pipeline for liquid agent packaging |
| CN110803338B (en) * | 2019-11-22 | 2021-06-18 | 安徽百盛源包装材料有限公司 | Conveying pipeline for liquid agent packaging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090527 Termination date: 20170605 |