CN103775026A - Self-generating electric heat tracing device for natural gas well - Google Patents
Self-generating electric heat tracing device for natural gas well Download PDFInfo
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- CN103775026A CN103775026A CN201410019694.3A CN201410019694A CN103775026A CN 103775026 A CN103775026 A CN 103775026A CN 201410019694 A CN201410019694 A CN 201410019694A CN 103775026 A CN103775026 A CN 103775026A
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Abstract
The invention provides a self-generating electric heat tracing device for a natural gas well. A front throttling device is arranged on a pipe wall at an incoming gas inlet, a pneumatic motor is fixedly arranged in the pipe wall through a fixing device, the pneumatic motor is fixedly connected with a transmission shaft, a transmission shaft flow guide ring is fixedly arranged on the transmission shaft and the transmission shaft is fixedly connected with a power generation device; the power generation device is connected with an electric heating device, the electric heating device is connected onto a gas pipeline and a rear throttling device is arranged at an incoming gas outlet. The self-generating electric heat tracing device for the natural gas well has the advantages that the running cost is extremely low, the explosion-proof performance and the safety performance are good, the environmental requirement is lower, the effect of on-load starting can be realized and the maintenance cost is low.
Description
Technical field
The present invention relates to a kind of electromechanical assembly, especially a kind of natural gas well heater.
Background technology
In production process of natural gas, natural gas is transported to gas gathering station from stratum after well head reducing pressure by regulating flow.The existence of throttling arrangement reduces natural gas temperature, owing to often more or less containing moisture in natural gas, in the time running into cold snap, easily forms hydrate and causes pipeline frozen block.Run into the more well of water outlet, because sewage cannot, directly in well head processing, can only be transported in gas gathering station together with natural gas, be discharged in sewage reservoir through after separating, therefore do not accompanying hot situation underground pipelines frozen block situation particularly serious.For addressing this problem, at present main adopt well head install water jacket furnace for pipeline in blending agent companion is provided heat.Water jacket furnace equipment relative volume is huge, maintenance is complicated, also needs the ancillary facilities such as combustion gas gas and water separator, windbreak, chimney.In running, need well head natural gas as fuel, continue consuming cost.Water jacket furnace water need to be processed in advance, and the handling of water all need to employ special-purpose vehicle and carry out operation.In the time meeting with the situations such as strong wind weather, easily there is blowing out fault in water jacket furnace, and then causes pipeline frozen block.In general, cost is higher.Because gas well majority is in wild environment, be conventionally unworthy of standby electricity supply.Part well head has been equipped with solar power supply apparatus, but cannot provide electric tracing for gas well.
Summary of the invention
The object of the invention is to the interior of well head pipeline inner high voltage natural gas self in production process of natural gas can Partial Conversion be electric energy, provides a kind of natural gas well self power generation heating device for well head medium provides electric tracing.
Technical scheme of the present invention is: natural gas well self power generation heating device, comprise preposition throttling arrangement, air motor, power transmission shaft, power transmission shaft guide ring, TRT, plug, rearmounted throttling arrangement and electric heater unit, the tube wall that it is characterized in that Lai Qi import department is provided with preposition throttling arrangement, air motor is fixed on tube wall inside by fastening devices, air motor is fixedly connected with power transmission shaft, power transmission shaft guide ring is fixed on power transmission shaft, and power transmission shaft is fixedly connected with TRT; TRT is connected with electric heater unit, and electric heater unit is connected on gas path pipe, carrys out gas outlet and is provided with rearmounted throttling arrangement.
The pipeline at described air motor and TRT place is triplet type, and power transmission shaft guide ring is with to block orifice plate corresponding; TRT is made up of magnet rotor, magnetic coupling separation sleeve, the outer magnet rotor of magnetic coupling in magnetic coupling, magnetic coupling separation sleeve is fixed on pipe end, in magnetic coupling, magnet rotor is fixedly connected with power transmission shaft, and be fixed in magnetic coupling separation sleeve by fastening devices, the outer magnet rotor of magnetic coupling is fixed on magnetic coupling separation sleeve outside, and the outer magnet rotor rotating shaft of magnetic coupling is connected with the rotating shaft of the outer magnet rotor of magnetic coupling and generator respectively; TRT is connected with electric heater unit by wire, and electric heater is installed on the pipeline of rearmounted throttling arrangement bottom.
Also feasible scheme is: the pipeline at described air motor and TRT place is triplet type, and power transmission shaft guide ring is with to block orifice plate corresponding; TRT is made up of separation sleeve, coil, p-m rotor, separation sleeve is fixed on pipe end, coil winding is in separation sleeve outside, p-m rotor is fixedly connected with power transmission shaft, and be fixed in separation sleeve by fastening devices, the coil of TRT is connected with electric heater unit by wire, and electric heater is installed on the pipeline of rearmounted throttling arrangement bottom.
Also feasible scheme is: described air motor is connected with TRT; TRT is made up of separation sleeve, coil rotor, permanent magnet, separation sleeve is fixed on pipeline, permanent magnet is fixed on separation sleeve outside, coil rotor is fixedly connected with air motor by power transmission shaft, coil rotor is connected with electrothermal tube by wire, the other end connection rotating shaft of coil rotor, and the other end of rotating shaft is fixed on tube wall by fastening devices, electrothermal tube is enclosed within rotating shaft, comes, in the pipeline of gas outlet, rearmounted throttling arrangement is installed.
On the pipeline at preposition throttling arrangement, air motor, TRT and rearmounted throttling arrangement place described in above scheme, have opening, and sealed by plug.
The invention has the beneficial effects as follows: the natural gas that do not consume in service, only running device is carried out to conventional maintenance maintenance, running cost is extremely cheap.Adopt air motor as actuating unit, long-term work temperature rise is less, and explosion-proof, safety are good, lower to environmental requirement, can be with a year startup, and maintenance cost is low.This device is without dynamic seal (packing) point, and in natural gas well head high pressure, inflammable, explosive environment, safety is better.Belong to disposable input compared with traditional water jacket furnace tracing system, and be subject to external environment condition restriction little, thereby good reliability.Coordinate rectifying and voltage-stabilizing equipment also to can be well head electronic equipment auxiliary power supply.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
Fig. 3 is the structural representation of the embodiment of the present invention 3.
In figure: 1, carry out gas import; 2, tube wall; 3, preposition throttling arrangement; 4, plug; 5, coil; 6, fastening devices; 7, air motor; 8, power transmission shaft; 9, power transmission shaft guide ring; 10, block orifice plate; 11, separation sleeve; 12, outer magnet rotor; 13, interior magnet rotor; 14, fastening devices; 15, p-m rotor; 16, rotating shaft; 17, generator; 18, permanent magnet; 19, rearmounted throttling arrangement; 20, coil rotor; 21, rotating shaft; 22, electric heater unit; 23, electrothermal tube; 24, electric wire.
The specific embodiment
[embodiment mono-]
Natural gas well self power generation heating device, comprise preposition throttling arrangement 3, air motor 7, power transmission shaft 8, power transmission shaft guide ring 9, TRT, plug 4, rearmounted throttling arrangement 19 and electric heater unit 22, the tube wall 2 that comes gas import 1 place is provided with preposition throttling arrangement 3, air motor 7 is fixed on tube wall 2 inside by fastening devices 6, air motor 7 is fixedly connected with power transmission shaft 8, power transmission shaft guide ring 9 is fixed on power transmission shaft 8, and power transmission shaft 8 is fixedly connected with TRT; TRT is connected with electric heater unit 22, and electric heater unit 22 is connected on gas path pipe, carrys out gas outlet and is provided with rearmounted throttling arrangement 19.
Described air motor 7 is triplet type with the pipeline at TRT place, and power transmission shaft guide ring 9 is with to block orifice plate 10 corresponding; TRT is made up of magnet rotor in magnetic coupling 13, magnetic coupling separation sleeve 11, the outer magnet rotor 12 of magnetic coupling, rotating shaft 16, generator 17, magnetic coupling separation sleeve 11 is fixed on pipe end, in magnetic coupling, magnet rotor 13 is fixedly connected with power transmission shaft 8, and be fixed in magnetic coupling separation sleeve 11 by fastening devices 14, the outer magnet rotor 12 of magnetic coupling is fixed on magnetic coupling separation sleeve 11 outsides, and the outer magnet rotor rotating shaft 16 of magnetic coupling is connected with the rotating shaft of the outer magnet rotor 12 of magnetic coupling and generator 17 respectively; TRT is connected with electric heater unit 22 by wire 24, and electric heater 22 is installed on the pipeline of rearmounted throttling arrangement 19 bottoms.
On the pipeline at preposition throttling arrangement 3, air motor 7, TRT and rearmounted throttling arrangement 19 places described in above scheme, have opening, and sealed by plug 4.
1, carrying out gas import---well head natural gas enters self power generation heating device thus.
2, tube wall---well head natural gas tube wall.
3, preposition throttling arrangement---according to well head oil, casing pressure and air motor self-operating parameter, together with rearmounted throttling arrangement, within pipeline pressure is adjusted to air motor working pressure range.
4, plug---the passage of handling throttling arrangement.
6, air motor fastening devices---air motor is fixed in tube wall.
7, air motor---the interior of air-flow can be converted into mechanical energy.
8, air motor power transmission shaft---connect air motor and interior magnet rotor, in driving, magnet rotor rotates.
9, power transmission shaft guide ring---be fixed on power transmission shaft, play guide functions, stop air-flow directly to impact interior magnet rotor.
10, block orifice plate---be fixed on the orifice plate on tube wall, stop air-flow directly to impact interior magnet rotor.Have perforate in orifice plate lower end, the hydrops that makes to enter in separation sleeve can flow out.
11, separation sleeve---the high pressure inflammable gas environment at rotor place and outside atmospheric air environment are kept apart.The design of static sealing point, reduces technology difficulty, promotes safety factor.
12, the outer magnet rotor of magnetic coupling---under magneticaction, rotate along with interior magnet rotor, in the situation that not coming in contact, not using dynamic seal (packing) point, mechanical energy is delivered to outside separation sleeve in separation sleeve, drive generator generating.
13, magnet rotor in magnetic coupling---link together by power transmission shaft and air motor, under air motor drives, rotate, and drive outer magnet rotor to rotate, outputting power outside separation sleeve.
14, fastening devices---connect rotor shaft end by bearing, limit its position.
16, outer magnet rotor rotating shaft---connect the rotating shaft of outer magnet rotor and generator.
17, generator---by the power of outer magnet rotor output, mechanical energy is converted into electric energy.
19, rearmounted throttling arrangement---coordinate preposition throttling arrangement, press according to gas well oil jacket, regulate fluid pressure, the flow of air motor front and back, make it within the working range of air motor.
22, electric heater---convert electrical energy into heat energy, pipeline inner fluid is heated.
24, electric wire---the electric power of generator output is transported to electric heater.
Well head natural gas enters self power generation heating device by carrying out gas import 1, flow through and be arranged on the preposition throttling arrangement 3 on tube wall 2, after reducing pressure by regulating flow, drive air motor 7, by air motor power transmission shaft 8, drive magnet rotor 13 in magnetic coupling to rotate, by the magneticaction that penetrates magnetic coupling separation sleeve 11, drive the outer magnet rotor 12 of magnetic coupling to rotate, drive the generator 17 being fixed on generator base to generate electricity by outer magnet rotor rotating shaft 16.The electric power that generator produces flows to electric heater 22 through electric wire 24.Pipeline inner fluid is at the water conservancy diversion of air motor power transmission shaft guide ring 9 and block under the blocking of orifice plate 10, avoid the pipeline space at interior magnet rotor place, come downwards to rearmounted throttling arrangement 19, carry out again after reducing pressure by regulating flow, enter electric heater 22 via electric heater entrance, after being heated, warp enters follow-up pipe network by electric heater outlet.
After unloading the plug 4 on preposition throttling arrangement 3 sides, can change or adjust operation to preposition throttling arrangement 3, in conjunction with the self-operating parameter of well head oil, casing pressure and air motor 7, coordinate the corresponding operating of rearmounted throttling arrangement 19, within pipeline pressure can being adjusted to the working pressure range of air motor 7.By pulling down the plug 4 on air motor 7 sides, can carry out handling operation to parts such as air motor 7, interior magnet rotors 13.After unloading the plug 4 on rearmounted throttling arrangement 19 sides, can change or adjust operation to rearmounted throttling arrangement 19.
With well head high-pressure natural gas driving air motor 7, utilize natural gas reducing pressure by regulating flow the output of process mechanical energy, relend and help magnetic coupling, in the situation that not increasing dynamic seal (packing) point, mechanical energy is transferred to outside tube wall 2, drive generator 17 to generate electricity, for pipeline provides electric tracing.
[embodiment bis-]
Natural gas well self power generation heating device, comprise preposition throttling arrangement 3, air motor 7, power transmission shaft 8, power transmission shaft guide ring 9, TRT, plug 4, rearmounted throttling arrangement 19 and electric heater unit 22, the tube wall 2 that comes gas import 1 place is provided with preposition throttling arrangement 3, air motor 7 is fixed on tube wall 2 inside by fastening devices 6, air motor 7 is fixedly connected with power transmission shaft 8, power transmission shaft guide ring 9 is fixed on power transmission shaft 8, and power transmission shaft 8 is fixedly connected with TRT; TRT is connected with electric heater unit 22, and electric heater unit 22 is connected on gas path pipe, carrys out gas outlet and is provided with rearmounted throttling arrangement 19.
Described air motor 7 is triplet type with the pipeline at TRT place, and power transmission shaft guide ring 9 is with to block orifice plate 10 corresponding; TRT is made up of separation sleeve 11, coil 5, p-m rotor 15, separation sleeve 11 is fixed on pipe end, coil 5 is wound in separation sleeve 11 outsides, p-m rotor 15 is fixedly connected with power transmission shaft 8, and be fixed in separation sleeve 11 by fastening devices 14, the coil 5 of TRT is connected with electric heater unit 22 by wire 24, and electric heater unit 22 is installed on the pipeline of rearmounted throttling arrangement 19 bottoms.
On the pipeline at preposition throttling arrangement 3, air motor 7, TRT and rearmounted throttling arrangement 19 places described in above scheme, have opening, and sealed by plug 4.
5, coil---under the effect of variation magnetic field, produce induced-current, externally output power.
8, power transmission shaft---connect air motor and p-m rotor, drive p-m rotor to rotate.
11, separation sleeve---the high pressure inflammable gas environment at rotor place and outside atmospheric air environment are kept apart.Adopt static sealing, reduce technology difficulty, promote safety factor.
15, p-m rotor---be made up of the permanent magnet being fixed in rotating shaft, link together by power transmission shaft and air motor, under air motor drives, rotate, magnetic field changes.
Well head natural gas enters self power generation heating device by carrying out gas import 1, flow through and be arranged on the preposition throttling arrangement 3 on tube wall 2, after reducing pressure by regulating flow, drive air motor 7, by air motor power transmission shaft 8, drive p-m rotor 15 to rotate, the magnetic field changing, under the effect of variation magnetic field, the inner induced-current that produces of coil 5 outside separation sleeve 11, flows to electric heater unit 22 through electric wire 24.Pipeline inner fluid is at the water conservancy diversion of air motor 7 power transmission shaft guide rings 9 and block under the blocking of orifice plate 10, avoid the pipeline space at p-m rotor 15 places, come downwards to rearmounted throttling arrangement 19, carry out again after reducing pressure by regulating flow, via electric heater entrance, enter electric heater unit 22, after being heated, warp enters follow-up pipe network by electric heater outlet.
After unloading the plug 4 on preposition throttling arrangement 3 sides, can change or adjust operation to preposition throttling arrangement 3, in conjunction with the self-operating parameter of well head oil, casing pressure and air motor 7, coordinate the corresponding operating of rearmounted throttling arrangement 19, within pipeline pressure can being adjusted to the working pressure range of air motor 7.By pulling down the plug 4 on air motor 7 sides, can carry out handling operation to parts such as air motor 7, p-m rotors 15.After unloading the plug 4 on rearmounted throttling arrangement 19 sides, can change or adjust operation to rearmounted throttling arrangement 19.
With well head high-pressure natural gas driving air motor 7, utilize natural gas reducing pressure by regulating flow process to produce mechanical energy, again by the p-m rotor 15 being placed in pipeline, the electromagnetic field changing, under the effect in this magnetic field, be fixed on the interior generation induced-current of coil 5 on tube wall 2, connect electric heater unit 22 by wire 24, companion is provided heat.
[embodiment three]
Natural gas well self power generation heating device, comprise preposition throttling arrangement 3, air motor 7, power transmission shaft 8, TRT, plug 4, electrothermal tube 23 and rearmounted throttling arrangement 19, the tube wall 2 that comes gas import 1 place is provided with preposition throttling arrangement 3, air motor 7 is fixed on tube wall 2 inside by fastening devices 6, air motor 7 is fixedly connected with power transmission shaft 8, and power transmission shaft 8 is fixedly connected with TRT; TRT is connected with electrothermal tube 23, carrys out gas outlet and is provided with rearmounted throttling arrangement 19.
Described air motor 7 is connected with TRT; TRT is made up of separation sleeve 11, coil rotor 20, permanent magnet 18, separation sleeve 11 is fixed on pipeline, permanent magnet 18 is fixed on separation sleeve 11 outsides, coil rotor 20 is fixedly connected with air motor 7 by power transmission shaft 8, coil rotor 20 is connected with electrothermal tube 23 by wire 24, the other end connection rotating shaft 21 of coil rotor 20, the other end of rotating shaft 21 is fixed on tube wall 2 by fastening devices 14, electrothermal tube 23 is enclosed within rotating shaft 21, comes, in the pipeline of gas outlet, rearmounted throttling arrangement 19 is installed.
On the pipeline at preposition throttling arrangement 3, air motor 7, TRT and rearmounted throttling arrangement 19 places described in above scheme, have opening, and sealed by plug 4.
11, separation sleeve---the high pressure inflammable gas environment at rotor place and outside atmospheric air environment are kept apart.
14, fastening devices---by bearing connection rotating shaft, limit rotating shaft position.
18, permanent magnet---around being fixed on separation sleeve outside, provide external magnetic field.
20, coil rotor---link together by rotating shaft and air motor power transmission shaft, in rotation process, be subject to external magnetic field to affect generation induced-current, mechanical energy is converted into electric energy.
21, rotating shaft---connect air motor power transmission shaft, the axis of fixed coil and electrothermal tube, can rotate with air motor power transmission shaft.
23, electrothermal tube---being fixed in a tubular form in rotating shaft, is heat energy by electric energy conversion.
Well head natural gas enters self power generation heating device by carrying out gas import 1, flow through and be arranged on the preposition throttling arrangement 3 on tube wall 2, after reducing pressure by regulating flow, drive air motor 7, by air motor power transmission shaft 8, drive coil rotor 20 to rotate, under the magnetic fields of the permanent magnet 18 of separation sleeve 11 outsides, the inner induced-current that produces of coil rotor 20, flow to electrothermal tube 23 through electric wire 24, electric energy is converted to heat energy, and the heat of generation is dispersed in pipeline fluid medium by heat abstractor, promotes medium temperature.The pipeline internal medium rearmounted throttling arrangement 19 of flowing through, reducing pressure by regulating flow again, enters follow-up pipe network.
After unloading the plug 4 on preposition throttling arrangement 3 sides, can change or adjust operation to preposition throttling arrangement 3, in conjunction with the self-operating parameter of well head oil, casing pressure and air motor 7, coordinate the corresponding operating of rearmounted throttling arrangement 19, pipeline pressure can be adjusted within the working pressure range of air motor 7 by pulling down the plug 4 on air motor 7 sides, can carry out handling operation to parts such as air motor 7, coil rotor 20.
With well head high-pressure natural gas driving air motor 7, utilize natural gas reducing pressure by regulating flow process to produce mechanical energy, drive the coil rotor 20 being placed in pipeline, under the electromagnetic field effect of external permanent magnet 18, produce induced-current, connect electrothermal tube 23 by wire 24, companion is provided heat.
Claims (5)
1. natural gas well self power generation heating device, comprise preposition throttling arrangement, air motor, power transmission shaft, power transmission shaft guide ring, TRT, plug, rearmounted throttling arrangement and electric heater unit, the tube wall that it is characterized in that Lai Qi import department is provided with preposition throttling arrangement, air motor is fixed on tube wall inside by fastening devices, air motor is fixedly connected with power transmission shaft, power transmission shaft guide ring is fixed on power transmission shaft, and power transmission shaft is fixedly connected with TRT; TRT is connected with electric heater unit, and electric heater unit is connected on gas path pipe, carrys out gas outlet and is provided with rearmounted throttling arrangement.
2. natural gas well self power generation heating device according to claim 1, is characterized in that described air motor and the pipeline at TRT place are triplet type, and power transmission shaft guide ring is with to block orifice plate corresponding; TRT is made up of magnet rotor, magnetic coupling separation sleeve, the outer magnet rotor of magnetic coupling in magnetic coupling, magnetic coupling separation sleeve is fixed on pipe end, in magnetic coupling, magnet rotor is fixedly connected with power transmission shaft, and be fixed in magnetic coupling separation sleeve by fastening devices, the outer magnet rotor of magnetic coupling is fixed on magnetic coupling separation sleeve outside, and the outer magnet rotor rotating shaft of magnetic coupling is connected with the rotating shaft of the outer magnet rotor of magnetic coupling and generator respectively; TRT is connected with electric heater unit by wire, and electric heater is installed on the pipeline of rearmounted throttling arrangement bottom.
3. natural gas well self power generation heating device according to claim 2, is characterized in that described air motor and the pipeline at TRT place are triplet type, and power transmission shaft guide ring is with to block orifice plate corresponding; TRT is made up of separation sleeve, coil, p-m rotor, separation sleeve is fixed on pipe end, coil winding is in separation sleeve outside, p-m rotor is fixedly connected with power transmission shaft, and be fixed in separation sleeve by fastening devices, the coil of TRT is connected with electric heater unit by wire, and electric heater is installed on the pipeline of rearmounted throttling arrangement bottom.
4. natural gas well self power generation heating device according to claim 3, is characterized in that described air motor is connected with TRT; TRT is made up of separation sleeve, coil rotor, permanent magnet, separation sleeve is fixed on pipeline, permanent magnet is fixed on separation sleeve outside, coil rotor is fixedly connected with air motor by power transmission shaft, coil rotor is connected with electrothermal tube by wire, the other end connection rotating shaft of coil rotor, and the other end of rotating shaft is fixed on tube wall by fastening devices, electrothermal tube is enclosed within rotating shaft, comes, in the pipeline of gas outlet, rearmounted throttling arrangement is installed.
5. according to the natural gas well self power generation heating device described in claim 1,2,3, on the pipeline at preposition throttling arrangement, air motor, TRT and rearmounted throttling arrangement place described in it is characterized in that, have opening, and sealed by plug.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410019694.3A CN103775026A (en) | 2014-01-16 | 2014-01-16 | Self-generating electric heat tracing device for natural gas well |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410019694.3A CN103775026A (en) | 2014-01-16 | 2014-01-16 | Self-generating electric heat tracing device for natural gas well |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104453785A (en) * | 2014-10-21 | 2015-03-25 | 西南石油大学 | Pneumatic heating device preventing hydrates from being generated at throttling part of gas well |
| CN105178913A (en) * | 2015-08-05 | 2015-12-23 | 李宾飞 | Natural gas power generation electric heating wax removing and preventing device based on skin effect and application thereof |
| CN110469295A (en) * | 2019-08-06 | 2019-11-19 | 中国石油天然气股份有限公司 | A kind of gas well mouth throttling heating process units and method |
| CN114382433A (en) * | 2022-01-26 | 2022-04-22 | 陈跃 | Natural gas wellhead integrated device and system based on depressurization, dehydration and power generation |
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| CN104453785A (en) * | 2014-10-21 | 2015-03-25 | 西南石油大学 | Pneumatic heating device preventing hydrates from being generated at throttling part of gas well |
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