CN202713670U - Petroleum induction heating system based on IGBT - Google Patents
Petroleum induction heating system based on IGBT Download PDFInfo
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- CN202713670U CN202713670U CN 201220337100 CN201220337100U CN202713670U CN 202713670 U CN202713670 U CN 202713670U CN 201220337100 CN201220337100 CN 201220337100 CN 201220337100 U CN201220337100 U CN 201220337100U CN 202713670 U CN202713670 U CN 202713670U
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Abstract
The utility model discloses a petroleum induction heating system based on IGBT. The petroleum induction heating system mainly comprises a rectifier bridge circuit, a filter circuit, a full-bridge inverter, an isolation transformer, a heating load, a petroleum temperature detector and an IGBT drive circuit, wherein, the filter circuit, the full-bridge inverter, the isolation transformer, the heating load, the petroleum temperature detector and the IGBT drive circuit are sequentially connected with the rectifier bridge circuit. The IGBT drive circuit is connected with the full-bridge inverter. By applying an induction heating power supply in petroleum, the petroleum induction heating system can be applied not only in a hollow sucker rod induction heating system but also in a gathering transportation pipeline intermediate-frequency induction electric tracer heating system of a complex small-fault-block oil field. The petroleum induction heating system has great significance in reducing capital construction investment of gathering transportation pipelines and lowering running costs.
Description
Technical field
The utility model relates to the oil induction heating, specifically refers to the oil heating system based on IGBT.
Background technology
Contain high " three height " viscous crude of colloidal bitumen, the content of wax and solidifying point in order to exploit, the oil field usually adopt steam incoming and outcoming, chemical viscosity reduction and hot water jets accompany into etc. method exploit, there are the shortcomings such as investment is high, inconvenience management in these methods.At present, Jiangsu oilfield in light of its own characteristics, adopts steel hollow rod induction heating technique when heavy crude producing.This technology has: equipment needed thereby is simple, underground work and easy to maintenance; Input power is adjustable; Be convenient to realize automatic control; Along the journey homogeneous heating, can not produce local overheating; The heat efficiency high (in the heating of oil pipe center); Be not afraid of the power failure stop pumping; Prolong duty cycle; Enhance productivity; Environmentally safe; Use safety, convenient management; One-time investment is less, the fast characteristics such as ［ 1 ］ of recovery of the capital.
According to present domestic powering mode, what the hollow rod heating system adopted is the line-frequency induction mode of heating.For the three-phase coulomb balance, the power frequency heating power supply is stacked one in the power frequency three-phase alternating current respectively mutually and is added to other two-phase through reactor, columns of capacitors phase shift, directly become through transformer to be suitable for connecting heater behind the various single phase industrial frequence alternating currents that add heat request again.Thereby power frequency heating power supply cost is high, volume is large, heavy, efficient is low.
The oil intermediate frequency induction heating power supply adopts IGBT as the inverse switch device, compares volume-diminished 40%, weight saving 50% with power frequency heating power supply commonly used.
The utility model content
The purpose of this utility model is to provide the gathering line Medium frequency induction that can be applied to the small complex fault block oil field electrically heat tracing oil heating system based on IGBT.
Implementation of the present utility model is as follows: based on the oil heating system of IGBT, mainly be made of rectifier circuit and the filter circuit that is connected successively with rectifier circuit, full-bridge inverter, isolating transformer, heating load, oil hygrosensor, IGBT drive circuit, described IGBT drive circuit is connected with full-bridge inverter.
Described full-bridge inverter is for adopting the zero voltage switch circuit of pulse-width modulation.
Described IGBT drive circuit comprises the IGBT grid electrode drive module.
The model of described IGBT grid electrode drive module is: M57962L.
Also be provided with control protection electric circuit between oil hygrosensor and the IGBT drive circuit.
Described rectifier circuit is the three phase rectifier bridge circuit.
The three phase rectifier bridge circuit is rectified into direct current with the power frequency three-phase alternating current, behind filter circuit, is transformed within the specific limits equal continuously adjustable single-phase mid-frequency alternating current of frequency and duty ratio by full-bridge inverter, exports to heating load through isolating transformer again.Full-bridge inverter adopts the zero voltage switch circuit of pulse-width modulation, has the advantages such as switching loss is low, electromagnetic interference is little.Control protection electric circuit adopts the SG3524 integrated package, and regulation voltage is heard when guaranteeing the dead band of output signal.The pulsewidth of output signal is modulated by the oil hygrosensor. and the temperature of oil is controlled at 45～7O ℃.The chemical characteristic of excess Temperature malleable oil. temperature is crossed the low flowability that can reduce oil.
Selecting of IGBT grid electrode drive module: IGBT grid electrode drive module EXB841, M57962L all can be used for driving 1200V series 400A with interior IGBT module, and have over-current detection and defencive function.Because EXB841 causes the danger of IGBT bombing larger than M57962L.Therefore should select M57962L.
Input characteristics and the MOSFET of IGBT are similar.Input impedance is high.If drive circuit loses voltage, then the grid of IGBT loses back bias voltage.Emitter is high-impedance state.At this moment, disturb the grid of altering to IGBT in case have, then the easily simultaneously conducting of upper and lower two pipes of IGBT module.If the IGBT module directly connects with the filter capacitor of thousands of microfarads, the energy of filter capacitor storage can directly discharge by the upper, lower tube of IGBT module so, easily causes the IGBT module damage.Therefore, induction heating power is connected first the power supply of control, drive circuit in when start, after the IGBT module is connected with filter capacitor.When shutdown, first IGBT module and filter capacitor are disconnected the power supply of rear shutoff control, drive circuit.
The utility model has the advantage of: adopt induction heating power not only can be applied to the hollow rod heating system in the oil.Can also be applied to the gathering line Medium frequency induction electric tracer heating system in small complex fault block oil field, this is for the capital expenditure and the operating cost important in inhibiting that reduce gathering line.
Description of drawings
Fig. 1 is the utility model system configuration schematic diagram.
Embodiment
Embodiment one
As shown in Figure 1.
Oil heating system based on IGBT, mainly be made of rectifier circuit and the filter circuit that is connected successively with rectifier circuit, full-bridge inverter, isolating transformer, heating load, oil hygrosensor, IGBT drive circuit, described IGBT drive circuit is connected with full-bridge inverter.
Described full-bridge inverter is for adopting the zero voltage switch circuit of pulse-width modulation.
Described IGBT drive circuit comprises the IGBT grid electrode drive module.
The model of described IGBT grid electrode drive module is: M57962L.
Also be provided with control protection electric circuit between oil hygrosensor and the IGBT drive circuit.
Described rectifier circuit is the three phase rectifier bridge circuit.
The three phase rectifier bridge circuit is rectified into direct current with the power frequency three-phase alternating current, behind filter circuit, is transformed within the specific limits equal continuously adjustable single-phase mid-frequency alternating current of frequency and duty ratio by full-bridge inverter, exports to heating load through isolating transformer again.Full-bridge inverter adopts the zero voltage switch circuit of pulse-width modulation, has the advantages such as switching loss is low, electromagnetic interference is little.Control protection electric circuit adopts the SG3524 integrated package, and regulation voltage is heard when guaranteeing the dead band of output signal.The pulsewidth of output signal is modulated by the oil hygrosensor. and the temperature of oil is controlled at 45～7O ℃.The chemical characteristic of excess Temperature malleable oil. temperature is crossed the low flowability that can reduce oil.
Selecting of IGBT grid electrode drive module: IGBT grid electrode drive module EXB841, M57962L all can be used for driving 1200V series 400A with interior IGBT module, and have over-current detection and defencive function.Because EXB841 causes the danger of IGBT bombing larger than M57962L.Therefore should select M57962L.
As mentioned above, then can well realize the utility model.
Claims (6)
1. based on the oil heating system of IGBT, it is characterized in that: mainly be made of rectifier circuit and the filter circuit that is connected successively with rectifier circuit, full-bridge inverter, isolating transformer, heating load, oil hygrosensor, IGBT drive circuit, described IGBT drive circuit is connected with full-bridge inverter.
2. the oil heating system based on IGBT according to claim 1 is characterized in that: described full-bridge inverter is for adopting the zero voltage switch circuit of pulse-width modulation.
3. the oil heating system based on IGBT according to claim 1, it is characterized in that: described IGBT drive circuit comprises the IGBT grid electrode drive module.
4. the oil heating system based on IGBT according to claim 3, it is characterized in that: the model of described IGBT grid electrode drive module is: M57962L.
5. the described oil heating system based on IGBT of any one is characterized in that: also be provided with control protection electric circuit between oil hygrosensor and the IGBT drive circuit according to claim 1-4.
6. the described oil heating system based on IGBT of any one according to claim 1-4, it is characterized in that: described rectifier circuit is the three phase rectifier bridge circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337100 CN202713670U (en) | 2012-07-12 | 2012-07-12 | Petroleum induction heating system based on IGBT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220337100 CN202713670U (en) | 2012-07-12 | 2012-07-12 | Petroleum induction heating system based on IGBT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202713670U true CN202713670U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220337100 Expired - Fee Related CN202713670U (en) | 2012-07-12 | 2012-07-12 | Petroleum induction heating system based on IGBT |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202713670U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103547005A (en) * | 2012-07-12 | 2014-01-29 | 成都科盛石油科技有限公司 | IGBT (insulated gate bipolar transistor)-based petroleum induction heating system |
| CN103715912A (en) * | 2013-11-22 | 2014-04-09 | 哈尔滨宏宇整流开关厂 | Intelligent temperature control device of mold pressing platform variable-frequency power source |
-
2012
- 2012-07-12 CN CN 201220337100 patent/CN202713670U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103547005A (en) * | 2012-07-12 | 2014-01-29 | 成都科盛石油科技有限公司 | IGBT (insulated gate bipolar transistor)-based petroleum induction heating system |
| CN103715912A (en) * | 2013-11-22 | 2014-04-09 | 哈尔滨宏宇整流开关厂 | Intelligent temperature control device of mold pressing platform variable-frequency power source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130130 Termination date: 20130712 |