CN215979335U - Thick oil thermal recovery boiler flue gas reinjection device - Google Patents
Thick oil thermal recovery boiler flue gas reinjection device Download PDFInfo
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- CN215979335U CN215979335U CN202122230727.7U CN202122230727U CN215979335U CN 215979335 U CN215979335 U CN 215979335U CN 202122230727 U CN202122230727 U CN 202122230727U CN 215979335 U CN215979335 U CN 215979335U
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- fixedly connected
- flue gas
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- boiler
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 62
- 239000003546 flue gas Substances 0.000 title claims abstract description 62
- 238000011084 recovery Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims description 17
- 230000001681 protective effect Effects 0.000 claims description 12
- 239000000295 fuel oil Substances 0.000 claims description 11
- 230000000694 effects Effects 0.000 claims description 6
- 238000009423 ventilation Methods 0.000 claims description 6
- 241000883990 Flabellum Species 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 49
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 15
- 238000000605 extraction Methods 0.000 abstract description 13
- 239000010779 crude oil Substances 0.000 abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 9
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen(.) Chemical compound [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 239000000084 colloidal system Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000010793 Steam injection (oil industry) Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of oil extraction, and discloses a flue gas reinjection device of a thick oil thermal recovery boiler, which comprises a large boiler, wherein the upper surface of the large boiler is fixedly connected with a water inlet, the outer surface of the large boiler is fixedly connected with a flue gas pipeline, and the lower surface of the large boiler is fixedly connected with a vent pipe; the input flue gas is used for oil recovery by using the main components of nitrogen and flue gas. Wherein, nitrogen is insoluble in water and can lift crude oil; the flue gas is dissolved in the thick oil to play a role in reducing the viscosity and increasing the flow. In addition, the flue gas can also be dissolved in liquefied steam, so that the swept area of injected steam is increased, and the recovery ratio is increased.
Description
Technical Field
The utility model relates to the technical field of oil extraction, in particular to a flue gas reinjection device for a heavy oil thermal recovery boiler.
Background
In the course of developing thick oil, the hot fluid is injected into the oil layer or the oil layer is locally combusted to form moving heat flow, so that the viscosity of crude oil is reduced, the fluidity is improved, and the oil extraction method for extracting thick oil is characterized by high content of asphaltene and colloid, high viscosity and difficult flowing, and is difficult to economically and effectively extract by using conventional primary oil extraction, secondary oil extraction and tertiary oil extraction technologies, so that a steam injection boiler device for extracting thick oil is provided, and steam and flue gas are injected into the stratum to improve the extraction effect of thick oil.
At present, because the thick oil has the outstanding characteristics of high content of asphaltene and colloid, high viscosity and difficult flowing, the thick oil is difficult to economically and effectively exploit by using the conventional primary oil extraction, secondary oil extraction and tertiary oil extraction technologies, and the purpose of inputting steam is to reduce the viscosity of underground thick oil by utilizing the heat of the thick oil and improve the fluidity of the thick oil; the purpose of the input flue gas is to recover oil from its main constituents nitrogen and flue gas. Wherein, nitrogen is insoluble in water and can lift crude oil; the flue gas is dissolved in the thick oil to play a role in reducing the viscosity and increasing the flow.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Aiming at the defects of the prior art, the utility model provides a flue gas reinjection device of a thick oil thermal recovery boiler, which has wide application range and high safety, solves the problems that the thick oil is difficult to economically and effectively recover by using conventional primary oil recovery, secondary oil recovery and tertiary oil recovery technologies due to the prominent characteristics of high content of asphaltene and colloid, high viscosity and difficult flowing, and inputs steam for reducing the viscosity of underground thick oil and improving the fluidity of the thick oil; the purpose of the input flue gas is to recover oil from its main constituents nitrogen and flue gas. Wherein, nitrogen is insoluble in water and can lift crude oil; the flue gas is dissolved in the thick oil to reduce the viscosity and increase the flow
(II) technical scheme
In order to achieve the purpose, the utility model provides the following technical scheme: a flue gas reinjection device of a thickened oil thermal recovery boiler comprises a large boiler, wherein a water inlet is fixedly connected to the upper surface of the large boiler, a flue gas pipeline is fixedly connected to the outer surface of the large boiler, a ventilation pipe is fixedly connected to the lower surface of the large boiler, an exhaust pipe is fixedly connected to the outer surface of the ventilation pipe, a protective shell is arranged on the upper surface of the exhaust pipe, an upper conical wheel is arranged inside the ventilation pipe, a rotating shaft is fixedly connected to the inner surface of the upper conical wheel, a rotating ring is fixedly connected to the outer surface of the middle part of the rotating shaft, a plurality of large fan blades are fixedly installed on the outer surface of the rotating ring, a fixing ring is fixedly connected to the upper surface of the rotating shaft, a fixing rod is fixedly connected to the outer surface of the fixing ring, a fixing block is fixedly connected to the other end of the fixing rod, and a starting conical gear is meshed with the outer surface of the upper conical wheel, the inner surface of the starting bevel gear is fixedly connected with a starting shaft, and the other end of the starting shaft is fixedly connected with a motor.
Preferably, a heating device is fixedly installed inside the large boiler, a fixing plate is fixedly connected to the outer surface of the heating device, and a mixing pipeline is fixedly connected to the lower surface of the heating device.
Preferably, the inside fixedly connected with motor of protective housing, dead lever and fixed block have six, flue gas pipeline activity run through in one side of big boiler and with hybrid line fixed connection, the lower surface and the heating device fixed connection of water inlet.
Preferably, the lower fixed surface of axis of rotation is connected with down the cone pulley, the surface meshing of cone pulley is connected with the connection cone pulley down, the internal fixed surface who connects the cone pulley is connected with the connecting axle, the surface of connecting axle is provided with fixing bearing, fixing bearing's external fixed surface is connected with the fixed rod, the other end fixedly connected with little flabellum of connecting axle.
Preferably, the connection cone pulley, the connecting shaft and the fixed bearing are all provided with a protective shell, and the other end of the fixed rod is fixedly connected with the inner surface of the exhaust pipe.
Preferably, the inner surface of the fixed bearing is fixedly connected with the outer surface of the connecting shaft, and the inner surface of the upper conical wheel is fixedly connected with the outer surface of the rotating shaft.
Three beneficial effects
Compared with the prior art, the utility model provides a flue gas reinjection device for a thickened oil thermal recovery boiler, which has the following beneficial effects:
1. when the utility model is used, water is input from the water inlet to the inside, the water is heated into steam after entering the inside of the heating device, the steam is gushed out from the upper end of the mixing pipeline, the gushed steam and the flue gas flowing in from the inside of the flue gas pipeline flow downwards together, and the flue gas is added to be injected underground; on the other hand, flue gas in the flue gas is dissolved in thick oil to play a role in reducing viscosity and increasing flow, the fixing plate plays a role in fixing the heating device, at the moment, a motor in the protective shell is started, the motor rotates to drive a starting shaft to rotate, the starting shaft is connected with the upper conical wheel through the meshing of the starting conical gear and drives the upper conical wheel to rotate, the fixing ring, the fixing rod and the fixing block play a role in fixing the upper conical wheel and the rotating shaft, a bearing is arranged in the fixing ring to reduce friction between the rotating shaft and the fixing ring, the rotating shaft drives the rotating ring to rotate, the rotating ring drives the large fan blades to rotate to generate wind power and blow steam downwards, the steam and the flue gas can flow out from the same outlet through a fan and then are contacted with the thick oil, nitrogen in the flue gas is insoluble in crude oil and water, and the crude oil lifting function can be achieved; the flue gas in the flue gas is dissolved in the thick oil to play a role in reducing the viscosity and increasing the flow. In addition, the flue gas can also be dissolved in liquefied steam, so that the swept area of injected steam is increased, and the recovery ratio is increased.
2. When the underground thick oil mining device is used, the lower conical wheel fixedly connected with the lower surface of the rotating shaft is meshed with the connecting conical wheel, the rotating shaft drives the connecting conical wheel to rotate through the lower conical wheel, the connecting conical wheel drives the connecting shaft to rotate, the connecting shaft is fixed inside the exhaust pipe through the fixing bearing and the fixing rod, the connecting shaft can drive the small fan blades to rotate, the exhaust pipe is fixedly connected to the periphery of the exhaust pipe, so that the lower conical wheel can simultaneously drive the four small fan blades to rotate, and the underground thick oil mining device has the advantages that steam and flue gas can be better diffused to the periphery, and the underground thick oil mining effect is improved.
Drawings
FIG. 1 is a schematic structural diagram of a flue gas reinjection device of a heavy oil thermal recovery boiler according to the present invention;
FIG. 2 is a cross-sectional view of the draft tube of FIG. 1 of a heavy oil thermal recovery boiler flue gas reinjection apparatus according to the present invention;
FIG. 3 is an assembly view of the draft tube of FIG. 2 of a heavy oil thermal recovery boiler flue gas reinjection apparatus according to the present invention;
FIG. 4 is a side sectional view of the rotary shaft in FIG. 3 of a heavy oil thermal recovery boiler flue gas reinjection apparatus according to the present invention;
FIG. 5 is a sectional view of a flue gas reinjection device of a heavy oil thermal recovery boiler shown in FIG. 1.
In the figure: 1. a large boiler; 2. a water inlet; 3. a flue gas duct; 4. a protective shell; 5. a vent pipe; 6. An exhaust duct; 7. an upper conical wheel; 8. a rotating shaft; 9. a large fan blade; 10. a rotating ring; 11. a fixing ring; 12. fixing the rod; 13. a fixed block; 14. starting the bevel gear; 15. starting the shaft; 16. a motor; 17. A lower cone wheel; 18. connecting a conical wheel; 19. a connecting shaft; 20. fixing the bearing; 21. a fixing rod; 22. a small fan blade; 23. a heating device; 24. a fixing plate; 25. a mixing pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the utility model provides a viscous crude thermal recovery boiler flue gas reinjection device, includes big boiler 1, its characterized in that: the upper surface of a large boiler 1 is fixedly connected with a water inlet 2, the outer surface of the large boiler 1 is fixedly connected with a flue gas pipeline 3, the lower surface of the large boiler 1 is fixedly connected with a ventilating pipe 5, the outer surface of the ventilating pipe 5 is fixedly connected with an exhaust pipe 6, the upper surface of the exhaust pipe 6 is provided with a protective shell 4, the interior of the ventilating pipe 5 is provided with an upper conical wheel 7, the inner surface of the upper conical wheel 7 is fixedly connected with a rotating shaft 8, the outer surface of the middle part of the rotating shaft 8 is fixedly connected with a rotating ring 10, the outer surface of the rotating ring 10 is fixedly provided with a plurality of large fan blades 9, the upper surface of the rotating shaft 8 is fixedly connected with a fixed ring 11, the outer surface of the fixed ring 11 is fixedly connected with a fixed rod 12, the other end of the fixed rod 12 is fixedly connected with a fixed block 13, the outer surface of the upper conical wheel 7 is engaged with a starting conical gear 14, and the inner surface of the starting conical gear 14 is fixedly connected with a starting shaft 15, the other end fixedly connected with motor 16 of start-up axle 15, the inside fixed mounting of big boiler 1 has heating device 23, heating device 23's external fixed surface is connected with fixed plate 24, heating device 23's lower fixed surface is connected with hybrid tube 25, the inside fixedly connected with motor 16 of protective housing 4, there are six dead lever 12 and fixed block 13, flue gas pipeline 3 activity run through in one side of big boiler 1 and with hybrid tube 25 fixed connection, the lower surface and the heating device 23 fixed connection of water inlet 2.
When the device is used, water is input from the water inlet 2 to the inside, the water is heated into steam after entering the inside of the heating device 23, the steam is gushed out from the upper end of the mixing pipeline 25, the gushed steam and the flue gas flowing from the inside of the flue gas pipeline 3 flow out together, and nitrogen in the flue gas is insoluble in crude oil and water and can play a role in lifting the crude oil; the flue gas in the flue gas is dissolved in the thick oil to play a role in reducing the viscosity and increasing the flow. In addition, the flue gas can also be dissolved in the liquefied steam, the swept area of injected steam is increased, the recovery ratio is increased, the fixing plate 24 plays a role of fixing the heating device 23, at the moment, the motor 16 in the protective shell 4 is started, the motor 16 rotates to drive the starting shaft 15 to rotate, the starting shaft 15 is connected with the upper conical wheel 7 through the meshing of the starting conical gear 14 and drives the upper conical wheel 7 to rotate, the fixing ring 11, the fixing rod 12 and the fixing block 13 play a role of fixing the upper conical wheel 7 and the rotating shaft 8, a bearing is arranged in the fixing ring 11 and can reduce the friction between the rotating shaft 8 and the fixing ring 11, the rotating shaft 8 drives the rotating ring 10 to rotate, the rotating ring 10 drives the large fan blades 9 to rotate to generate wind power to blow the steam and the flue gas downwards, and the design can lead the steam and the flue gas to flow out from the same outlet through a fan and then to be contacted with thick oil, nitrogen in the flue gas is insoluble in crude oil and water, and can play a role in lifting the crude oil; the flue gas in the flue gas is dissolved in the thick oil to play a role in reducing the viscosity and increasing the flow. In addition, the flue gas can also be dissolved in liquefied steam, so that the swept area of injected steam is increased, and the recovery ratio is increased.
Example 2: the difference is based on example 1;
When the underground thick oil extraction device is used, the lower conical wheel 17 fixedly connected with the lower surface of the rotating shaft 8 is meshed with the connecting conical wheel 18, the rotating shaft 8 drives the connecting conical wheel 18 to rotate through the lower conical wheel 17, the connecting conical wheel 18 drives the connecting shaft 19 to rotate, the connecting shaft 19 is fixed inside the exhaust pipe 6 through the fixing bearing 20 and the fixing rod 21, the connecting shaft 19 can drive the small fan blades 22 to rotate through rotation, the exhaust pipe 6 is fixedly connected to the periphery of the exhaust pipe 5, and therefore the lower conical wheel 17 can simultaneously drive the four small fan blades 22 to rotate, and the underground thick oil extraction device has the advantages that steam and flue gas can be better diffused to the periphery, and the underground thick oil extraction effect is improved.
It is to be noted that the term "comprises," "comprising," or any other variation thereof is intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a viscous crude thermal recovery boiler flue gas reinjection device, includes big boiler (1), its characterized in that: the upper surface of the large boiler (1) is fixedly connected with a water inlet (2), the outer surface of the large boiler (1) is fixedly connected with a flue gas pipeline (3), the lower surface of the large boiler (1) is fixedly connected with a ventilation pipe (5), the outer surface of the ventilation pipe (5) is fixedly connected with an exhaust pipe (6), the upper surface of the exhaust pipe (6) is provided with a protective shell (4), an upper conical wheel (7) is arranged inside the ventilation pipe (5), the inner surface of the upper conical wheel (7) is fixedly connected with a rotating shaft (8), the outer surface of the middle part of the rotating shaft (8) is fixedly connected with a rotating ring (10), the outer surface of the rotating ring (10) is fixedly provided with a plurality of large fan blades (9), the upper surface of the rotating shaft (8) is fixedly connected with a fixed ring (11), and the outer surface of the fixed ring (11) is fixedly connected with a fixed rod (12), the other end fixedly connected with fixed block (13) of dead lever (12), the surface meshing of going up cone pulley (7) is connected with starts conical gear (14), the internal surface fixedly connected with start shaft (15) that starts conical gear (14), the other end fixedly connected with motor (16) of start shaft (15).
2. The heavy oil thermal recovery boiler flue gas reinjection device of claim 1, characterized in that: the boiler is characterized in that a heating device (23) is fixedly mounted inside the large boiler (1), a fixing plate (24) is fixedly connected to the outer surface of the heating device (23), and a mixing pipeline (25) is fixedly connected to the lower surface of the heating device (23).
3. The heavy oil thermal recovery boiler flue gas reinjection device of claim 1, characterized in that: the inside fixedly connected with motor (16) of protective housing (4), dead lever (12) and fixed block (13) have six, flue gas pipeline (3) activity run through in one side of big boiler (1) and with hybrid pipeline (25) fixed connection, the lower surface and the heating device (23) fixed connection of water inlet (2).
4. The heavy oil thermal recovery boiler flue gas reinjection device of claim 1, characterized in that: lower fixed surface of axis of rotation (8) is connected with down cone pulley (17), the surface meshing of cone pulley (17) is connected with connects cone pulley (18) down, the internal fixed surface who connects cone pulley (18) is connected with connecting axle (19), the surface of connecting axle (19) is provided with fixing bearing (20), the external fixed surface of fixing bearing (20) is connected with fixed rod (21), the little flabellum (22) of other end fixedly connected with of connecting axle (19).
5. The heavy oil thermal recovery boiler flue gas reinjection device of claim 4, characterized in that: the connecting conical wheel (18), the connecting shaft (19) and the fixed bearing (20) are all externally provided with a protective shell (4), and the other end of the fixed rod (21) is fixedly connected with the inner surface of the exhaust pipe (6).
6. The heavy oil thermal recovery boiler flue gas reinjection device of claim 4, characterized in that: the inner surface of the fixed bearing (20) is fixedly connected with the outer surface of the connecting shaft (19), and the inner surface of the upper conical wheel (7) is fixedly connected with the outer surface of the rotating shaft (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122230727.7U CN215979335U (en) | 2021-09-15 | 2021-09-15 | Thick oil thermal recovery boiler flue gas reinjection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122230727.7U CN215979335U (en) | 2021-09-15 | 2021-09-15 | Thick oil thermal recovery boiler flue gas reinjection device |
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| Publication Number | Publication Date |
|---|---|
| CN215979335U true CN215979335U (en) | 2022-03-08 |
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| CN202122230727.7U Active CN215979335U (en) | 2021-09-15 | 2021-09-15 | Thick oil thermal recovery boiler flue gas reinjection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075792A (en) * | 2022-07-07 | 2022-09-20 | 中国石油大学(华东) | Flue gas reinjection, diversion and exhaust mechanism of thickened oil thermal recovery boiler |
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2021
- 2021-09-15 CN CN202122230727.7U patent/CN215979335U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115075792A (en) * | 2022-07-07 | 2022-09-20 | 中国石油大学(华东) | Flue gas reinjection, diversion and exhaust mechanism of thickened oil thermal recovery boiler |
| CN115075792B (en) * | 2022-07-07 | 2023-09-01 | 中国石油大学(华东) | Flue gas reinjection flow-guiding exhaust mechanism of thick oil thermal recovery boiler |
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Effective date of registration: 20240403 Address after: No. 2861, Building 33, No. 69 Zhongmensi Street, Mentougou District, Beijing, 102399 Patentee after: Beijing Naisi Century Technology Co.,Ltd. Country or region after: China Address before: 351100 No. 1569, Licheng middle Avenue, Longqiao street, Chengxiang District, Putian City, Fujian Province (cluster registration) Patentee before: Putian Chengxiang Xinzhen information technology consulting service center Country or region before: China |