CN202149485U - Redundant cooling device for afterburning-type combustion chamber for supercritical pressure steam injection generator for oil field - Google Patents
Redundant cooling device for afterburning-type combustion chamber for supercritical pressure steam injection generator for oil field Download PDFInfo
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- CN202149485U CN202149485U CN201120255044U CN201120255044U CN202149485U CN 202149485 U CN202149485 U CN 202149485U CN 201120255044 U CN201120255044 U CN 201120255044U CN 201120255044 U CN201120255044 U CN 201120255044U CN 202149485 U CN202149485 U CN 202149485U
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- precombustion chamber
- cooling
- liner
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- jacket
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Abstract
The utility model discloses a redundant cooling device for an afterburning-type combustion chamber for a supercritical pressure steam injection generator for an oil field, which relates to oil extraction equipment for the oil field. The cooling device comprises a precombustion chamber casing 1, a precombustion chamber middle liner 2 and a precombustion chamber inner liner 3, wherein a water cooling jacket 6 is formed between the precombustion chamber casing 1 and the middle liner 2; an air cooling jacket 7 is formed between the precombustion chamber middle liner 2 and the precombustion chamber inner liner 3; and a plurality of tangential air nozzles 8 are arranged on the inner wall of the air cooling jacket. Air is sprayed out from the nozzles 8 and is in contact with the surface of fuel gas in the middle liner 2 to form a continuous gas film to cool a precombustion chamber. Cooling water is forced to flow through the water cooling jacket 6, so as to carry out the regenerative cooling on the heated air in the air cooling jacket and the redundant cooling on the high-temperature fuel gas. By improving the structure and the cooling method, the cooling device solves the problem that the liner of the steam injection generator is burnt and damaged.
Description
Technical field
The utility model relates to a kind of oil field equipment, particularly relates to the redundant cooling device that a kind of compensation combustion type supercritical pressure is annotated vapour generator (claiming composite heat carrier generator again) combustion chamber.
Background technology
Annotate each elephant such as vapour generator grand celebration at home, the Liaohe River, triumph, Xinjiang and carried out using for many years, and obtained certain oil increasing effect, but its scope of application mainly concentrates on shallow-layer oil reservoir and the high infiltration oil reservoir in the past.Continuous progress along with oil field development; The existing composite heat carrier generator of China; The needs that can't adapt to current field produces like patent 98203951.4 " composite heat carrier generator of swirl atomizer ", 98203949.2 " composite heat carrier generators ", 98203950.6 " composite heat carrier generator ", 02231765.1 " gas steam generator " and 200510022594.7 " high-temperature high-pressure combustion system of sub-critical composite heat carrier generator " etc. with vaporizer; Therefore, must the bigger flow of development, more the supercritical pressure of high pressure is annotated vapour generator.
Yet, follow the raising of show loving care for vapour generator flow, pressure and temperature, the new technical problem that needs to be resolved hurrily has appearred again, and one of them annotates vapour generator liner scaling loss, breaking-up problem exactly.
In disclosed generator design, the cooling of annotating the vapour generator combustion chamber all is employed in the regeneration type of cooling that spiral or rod-type cooling jacket are set in the burning chamber shell, but when the raising of generator chamber pressure; And the equipment flow is big; And continuously during long-term work,, keep having the saturation state of certain steam quality for making equipment blending water along with the composite heat carrier increase in temperature; Its watering quantity will reduce gradually; Original inner lining structure can't satisfy the requirement of working environment, often occur liner at the flame front place phenomenon such as scaling loss, breaking-up in the form of a ring, thereby had a strong impact on and annotated the normal use of vapour generator at mid-deep strata main force oil reservoir.Particularly when generator when supercritical pressure is worked, because of cooling working medium water exists greatly than the hot-zone, its volume is bigger with working conditions change in this district, the heat transfer deterioration phenomenon very easily takes place in equipment, and and then burns combustion chamber liner, damage equipment.Therefore, minimizing that something must be done to and control high-temperature fuel gas promptly carry out substantive breakthroughs to the design of existing generator combustion chamber cooling liner and improve the heat transfer total amount of cooling medium.
Summary of the invention
The purpose of the utility model is to provide a kind of supercritical pressure oil field gas injection generator compensation combustion type combustion chamber
SuperfluousSurplus cooling device is promptly in (near the disposable burning that will concentrate on originally the top of combustion chamber is divided into pre-burning burning and two parts of afterburning burning) on the basis that changes existing generator combustion system, through the structure of improvement cooling device; Change original single regeneration type of cooling into liner with the cooling of air air film, middle lining cools off with water reuse (treatment, and; The air air film is cooled to the master; Water reuse (treatment is cooled to the auxilliary redundant type of cooling, thereby improves the liner cooling effect, prolongs service life of structure.
The purpose of the utility model realizes through following technical scheme:
The redundant cooling device in supercritical pressure oil field gas injection generator compensation combustion type combustion chamber is made up of lining, precombustion chamber liner in precombustion chamber housing, the precombustion chamber.Wherein, the front/rear end of precombustion chamber housing adopts inner conical (or spherical); Lining and liner outer rim are provided with multi-head spiral groove in the precombustion chamber, and the inwall of precombustion chamber liner is provided with a plurality of tangentials nozzle; During being plugged in, the precombustion chamber liner in the lining endoporus, connects through tail end welding (or other affixed mode), but pressure bearing and seal; The weld assembly of precombustion chamber liner and middle lining is plugged in the precombustion chamber housing; The helical duct that forms between precombustion chamber liner and the middle lining constitutes cooling air jacket, and the helical duct that forms between lining and the housing in the precombustion chamber constitutes water(-cooling) jacket.
The redundant cooling device in supercritical pressure oil field gas injection generator compensation combustion type combustion chamber; Remaining air except that being used for precombustion chamber poor oil firing required air all gets into cooling air jacket via cooling air intake; A plurality of tangentials nozzle by on the cooling air jacket inwall sprays into precombustion chamber; On the cooling air jacket inwall, form continuous air film, and in this process, absorb the heat preheating self in the combustion gas.
The redundant cooling device in supercritical pressure oil field gas injection generator compensation combustion type combustion chamber; The required cooling water of precombustion chamber all gets into water(-cooling) jacket via the cooling water inlet; To the cooling of regenerating of the heated air in the cooling air jacket, and when the air film cooling was not good, the protection precombustion chamber was not damaged.
The advantage and the effect of the utility model are:
Through breaking-up of existing equipment scaling loss and phenomenon are observed, analyzed and calculate, the utility model has improved the device structure and the type of cooling, and has solved the liner burning problems of annotating vapour generators with this.
1, in the combustion chamber cooling air jacket is set, uses air to carry out the air film cooling.
Annotate in the vapour generator course of work, its burning required air is divided into two-way and is pressed in the combustion chamber.Wherein, the one road supplies with precombustion chamber, directly is used for poor oil firing; The precombustion chamber cooling air jacket is supplied with on another road, sprays into precombustion chamber through a plurality of tangential small-holes that are arranged on its liner, on the cooling air jacket inwall, forms continuous air film.Because this air film has separated high-temperature fuel gas and inwall, and in flow process, constantly absorb fuel gas calorie, reduced fuel gas temperature and combustion gas than enthalpy, thereby, improved the protection effect, effectively avoided liner scaling loss or breaking-up.Simultaneously, owing in this process, the air that has neither part nor lot in burning has been carried out effective preheating, the also related efficiency of combustion that improves next step afterburning stage.
The outstanding feature of air film cooling is under any condition (being included in the supercritical pressure condition of work); Can not produce the heat transfer deterioration phenomenon, scaling loss or the breaking-up of effectively having avoided generator under the supercritical pressure condition of work, to cause but as water-cooled because of heat transfer deterioration.
2, cooling air jacket is provided with water(-cooling) jacket outward, forms redundant cooling, avoids heat transfer deterioration.
When generator was worked, cooling water pressure was gone into water(-cooling) jacket, in its helical duct, forced mobilely, and to the cooling of regenerating of the own heated air in the cooling air jacket, thereby had further strengthened cooling effect, and had formed redundant cooling.Meanwhile, because of receiving the cooling protection near the gas-air air film, the regeneration cooling water temperature in the water(-cooling) jacket has also obtained effective control, thereby has avoided the heat transfer deterioration phenomenon to produce.
Description of drawings
Fig. 1 is the precombustion chamber cooling system sketch map of the utility model.
The specific embodiment
With reference to Fig. 1 the utility model is elaborated below.
The redundant cooling device in supercritical pressure oil field gas injection generator compensation combustion type combustion chamber by serve as a contrast 2 in precombustion chamber housing 1, the precombustion chamber, precombustion chamber liner 3 constitutes.Wherein, the front end face 4 and rear end face 10 of precombustion chamber housing 1
AllBe inner conical, through screwed flange, stud bolt an nut on adpting flange screw thread on the precombustion chamber housing 15 and the flange screw thread 9, the spherical end surface with precombustion chamber ejector filler housing that is positioned at its rear and front end and afterburning ejector filler housing compresses sealing respectively.Lining 2 outer rims are provided with multi-head spiral groove in the precombustion chamber.Precombustion chamber liner 3 outer rims also are provided with multi-head spiral groove, and its inwall is provided with a plurality of tangentials nozzle 8.In lining 2 endoporus, the two was welded to connect through tail end during precombustion chamber liner 3 was plugged in, but and pressure bearing and seal.The helical duct that constitutes between precombustion chamber liner 3 and the middle lining 2 is a cooling air jacket 7, and the helical duct that constitutes between lining 2 and the housing 1 in the precombustion chamber is a water(-cooling) jacket 6.The weld assembly of precombustion chamber liner 3 and middle lining 2 is plugged in the precombustion chamber housing 1.
The utility model course of work:
When the compensation combustion type supercritical pressure was annotated the vapour generator operate as normal, its burning required air was divided into two-way in the pre-burning ejector filler, and wherein one the tunnel carries out poor oil firing after directly spraying into precombustion chamber and the fuel blending that is sprayed into; Another road all gets into cooling air jacket 7, sprays into precombustion chamber via a plurality of tangentials nozzle 8 on the cooling air jacket liner 3, forms continuous air film within it on the wall; Prevent that flame from directly contacting with the cooling air jacket inwall, simultaneously, through the blending heat absorption of this part air; Progressively reduce fuel gas temperature and combustion gas and compare enthalpy; Thereby multi-faceted protection inner lining structure, the comprehensive protection effect that improves is further avoided liner scaling loss or breaking-up.In addition, owing in this process, the air that has neither part nor lot in burning has been carried out effective preheating, the related efficiency of combustion that improves next step afterburning stage.
For further improving the cooling effect of precombustion chamber, strengthen security protection, set up water(-cooling) jacket 6 again at the outer surface of above-mentioned cooling air jacket 7, to its cooling of regenerating.When generator was worked, cooling water got into precombustion chamber water(-cooling) jacket 6, in spirality channel, forces mobile; And the heated air in the cooling air jacket cooled off; With further enhanced cooling, simultaneously, in case when air film cooling is not good; Carry out redundancy protecting through the regeneration cooling, intact to guarantee device security.
Claims (1)
1. the redundant cooling device in supercritical pressure oil field gas injection generator compensation combustion type combustion chamber is made up of lining, precombustion chamber liner in precombustion chamber housing, the precombustion chamber, it is characterized in that the front/rear end of precombustion chamber housing (1) adopts inner conical; Lining (2) and liner (3) outer rim are provided with multi-head spiral groove in the precombustion chamber, and the inwall of precombustion chamber liner (3) is provided with a plurality of tangentials nozzles (8); Precombustion chamber liner (3) is plugged in middle lining (2) endoporus, adopts tail end welding or other affixed mode, is the pressure bearing and seal shape; The weld assembly of precombustion chamber liner (3) and middle lining (2) is plugged in the precombustion chamber housing (1); Form helical duct between precombustion chamber liner (3) and the middle lining (2), constitute cooling air jacket, form helical duct between lining (2) and the housing (1) in the precombustion chamber, constitute water(-cooling) jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120255044U CN202149485U (en) | 2011-07-19 | 2011-07-19 | Redundant cooling device for afterburning-type combustion chamber for supercritical pressure steam injection generator for oil field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120255044U CN202149485U (en) | 2011-07-19 | 2011-07-19 | Redundant cooling device for afterburning-type combustion chamber for supercritical pressure steam injection generator for oil field |
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| Publication Number | Publication Date |
|---|---|
| CN202149485U true CN202149485U (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120255044U Expired - Fee Related CN202149485U (en) | 2011-07-19 | 2011-07-19 | Redundant cooling device for afterburning-type combustion chamber for supercritical pressure steam injection generator for oil field |
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| CN (1) | CN202149485U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501145A (en) * | 2014-12-24 | 2015-04-08 | 山西蓝天环保设备有限公司 | Self-preheating and sectionalized pulverized coal combustion low-NOx combustion device and method |
| CN104632182A (en) * | 2015-02-03 | 2015-05-20 | 新奥气化采煤有限公司 | Nozzle |
| CN104976626A (en) * | 2015-07-30 | 2015-10-14 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Oil and gas field blowout combustion tank device |
-
2011
- 2011-07-19 CN CN201120255044U patent/CN202149485U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501145A (en) * | 2014-12-24 | 2015-04-08 | 山西蓝天环保设备有限公司 | Self-preheating and sectionalized pulverized coal combustion low-NOx combustion device and method |
| CN104632182A (en) * | 2015-02-03 | 2015-05-20 | 新奥气化采煤有限公司 | Nozzle |
| CN104976626A (en) * | 2015-07-30 | 2015-10-14 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Oil and gas field blowout combustion tank device |
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| 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 |
Granted publication date: 20120222 Termination date: 20200719 |
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| CF01 | Termination of patent right due to non-payment of annual fee |