CN108844097A - A kind of oil-poor low pollution combustor directly sprayed of multiple spot - Google Patents
A kind of oil-poor low pollution combustor directly sprayed of multiple spot Download PDFInfo
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- CN108844097A CN108844097A CN201810219175.XA CN201810219175A CN108844097A CN 108844097 A CN108844097 A CN 108844097A CN 201810219175 A CN201810219175 A CN 201810219175A CN 108844097 A CN108844097 A CN 108844097A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/34—Feeding into different combustion zones
- F23R3/346—Feeding into different combustion zones for staged combustion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
- F23R3/04—Air inlet arrangements
- F23R3/10—Air inlet arrangements for primary air
- F23R3/12—Air inlet arrangements for primary air inducing a vortex
- F23R3/14—Air inlet arrangements for primary air inducing a vortex by using swirl vanes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/38—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply comprising rotary fuel injection means
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Of Fluid Fuel (AREA)
Abstract
The invention discloses a kind of oil-poor direct injection low pollution combustors of multiple spot, are made of diffuser, combustion box, head of combustion chamber, burner inner liner, combustor exit；Using fractional combustion strategy, head of combustion chamber is divided into grade, the first main combustion stage and the second main combustion stage on duty, grade on duty forms diffusion combustion mode using swirl atomizer, main combustion stage uses oil-poor lean direct injection mode, and grade on duty, the first main combustion stage, the second main combustion stage intermediate fuel oil nozzle can be with independent controls.In 7% thrust operating condition, only level work on duty, in 30% thrust operating condition, grade on duty and the first main combustion stage are worked at the same time, and in 85% and 100% thrust operating condition, grade on duty and the first main combustion stage, the second main combustion stage are worked at the same time.Design of the invention preferably reduces pollutant emission and efficiency of combustion and pollutant emission in low operating condition, and takes into account under LTO circulation efficiency of combustion under each operating condition.
Description
Technical field
The invention belongs to low pollution combustor field, in particular to a kind of oil-poor combustion with reduced pollutants directly sprayed of multiple spot
Room.
Background technique
In recent years, environmental issue is increasingly paid attention to people, the feature of environmental protection of aero-engine is got in manufacture claim
More to protrude, reduces and pollute, extend the Major Developmental Objectives that the service life is gas-turbine unit.
For this purpose, combustion with reduced pollutants technology is all widely studied in countries in the world, various forms of low pollutions are developed
Combustion chamber.For example, early in the 1970s the U.S. just developed grading combustion technology, lean premixed preevaporated combustion chamber
(LPP), fuel-rich combustion-quenching-poor oil firing's technology (RQL), catalytic combustor and variable geometry combustor（VGC）Deng master
The generation for being provided to be greatly reduced nitrogen oxides of syllabus.But these technologies have its shortcoming, RQL combustion technology
In middle area it is difficult to ensure that being quickly sufficiently mixed, so that efficiency of combustion reduces；LPP combustion technology has tempering, spontaneous combustion, burning not
It is good to maintain the problems such as stablizing.
Therefore, oil-poor direct spraying technique (LDI) receives attention, and fuel oil is directly injected in combustion chamber by LDI technology
Mix with air burning, due to not with air pre-mixing, so LDI technology there is no spontaneous combustion and tempering the problems such as.Many research aircrafts
Discharged nitrous oxides, NO can be effectively reduced studies have shown that classification LDI combustion scheme in structureXDischarge provides low by 80% than CAEP/6
More than.
But the design for the low pollution combustor under various working conditions be always those skilled in the art's strategic point to
The technical problem of solution.Therefore, pollutant emission is preferably reduced, and takes into account the combustion of efficiency of combustion under each operating condition under LTO circulation
Burn coming into being for room.
Summary of the invention
The present invention aiming at the problems existing in the prior art, discloses a kind of oil-poor combustion with reduced pollutants directly sprayed of multiple spot
Head of combustion chamber is divided into grade on duty, the first main combustion stage, the second main combustion stage using fractional combustion strategy by room, grade on duty use from
Heart nozzle forms diffusion combustion mode, and main combustion stage uses oil-poor lean direct injection mode, solves existing in the prior art
Problem.
The invention is realized in this way：
The oil-poor low pollution combustor directly sprayed of a kind of multiple spot, including diffuser, the combustion box being connect with diffuser, combustion
The burner inner liner being arranged inside the casing of room, the head of combustion chamber that is connected with burner inner liner are burnt, during the grade on duty on head of combustion chamber is
Heart cyclone, is connected with Fuel Injector Bar；
Two sides setting two cyclones of the first main combustion stage at grade center on duty and it is arranged the in grade outer ring on duty and inner ring
The structure of two four cyclones of main combustion stage is 7 points of oil-poor direct injection heads；
The structure that second four cyclones of main combustion stage are only arranged in grade on duty on outer ring and inner ring is 5 points of oil-poor direct injector heads
Portion；
Grade on duty be rotarytype injector, 7 points it is oil-poor directly spray heads and 5 points it is oil-poor directly spray head center arrangement it is on duty
Grade equal oil jetting combustion under all operating conditions, stable diffusion combustion flame on duty is provided for low-pollution burning chamber of gas turbine；The
One main combustion stage, the second main combustion stage are simple nozzle；
Head of combustion chamber using 7 points it is oil-poor directly injection heads with 5 points it is oil-poor directly injection heads it is circumferentially interlaced uniformly into
Row arrangement.That is, head is 7 points of oil-poor direct jetstream whirl devices and 5 points of oil-poor direct jetstream whirl devices in head of combustion chamber circumferential direction
It is interlaced to be uniformly arranged.5 points of oil-poor directly injection head constructions and 7 points of oil-poor directly injection heads are similar, difference
Being in does not have simple nozzle in the grade two sides on duty of 5 points of oil-poor direct injection head constructions.
Further, the grade on duty include grade expanding channel on duty, the beveling hole on grade expanding channel on duty, with it is on duty
The grade swirl atomizer rotary table on duty of grade expanding channel connection；Grade centrifugation spray on duty is disposed with after grade swirl atomizer rotary table on duty
Mouth, the grade swirl atomizer internal channel on duty being connected with grade swirl atomizer on duty.
Further, first main combustion stage, the oil-poor injection head construction of each unit is identical in the second main combustion stage, including master
Fire grade expanding channel, two-stage axial swirler, the main combustion stage second cyclone respectively connecting with main combustion stage expanding channel, main combustion
The main combustion stage level-one cyclone connected inside grade second cyclone, main combustion stage level-one cyclone are connected with the central axial sky of main combustion stage
Gas accelerated passage.
Further, the burner inner liner wall surface is provided with blending hole.
Further, the grade expanding channel on duty is concordant with the outlet of main combustion stage expanding channel.
Further, main combustion stage second level swirl channel converging portion is formed on the outside of the main combustion stage second cyclone, it is described
Main combustion stage level-one swirl channel converging portion is formed between main combustion stage level-one cyclone and main combustion stage second cyclone.
Further, the central axial air accelerated passage of the main combustion stage, main combustion stage level-one cyclone, the rotation of main combustion stage second level
Device three-level intake method is flowed to connect by main combustion stage fuel nozzle outer tunnel and the outlet of main combustion stage fuel nozzle.
Further, the grade on duty outlet equivalent proportion is 0.6~1.6, is varied slightly with specific reference to combustion chamber operating condition.
Further, the outlet equivalent proportion on described 7 points oil-poor direct injection heads and 5 points of oil-poor direct injection heads is
0.4~0.9, it changes with specific reference to low-pollution burning chamber of gas turbine operating condition；7 points oil-poor directly to spray heads and at 5 points
Oil-poor direct injection head number is respectively 4~15, specific number according to low-pollution burning chamber of gas turbine diameter and
It is fixed.
Further, in 7% thrust operating condition, only level work on duty；In 30% thrust operating condition, grade on duty and the first main combustion stage
It works at the same time；In 85% and 100% thrust operating condition, grade on duty, the first main combustion stage, the second main combustion stage are worked at the same time.
The beneficial effect of the present invention compared with prior art is：
1）Using fractional combustion strategy, head of combustion chamber is divided into grade on duty and the first main combustion stage, the second main combustion stage, main combustion stage
It realizes two-stage combustion, efficiently solves poor oil firing room in small operating condition（Especially 30% operating condition）The very low problem of efficiency of combustion, is opened up
The wide working range of combustion chamber, while reducing pollutant emission；
2）The problems such as first main combustion stage, the second main combustion stage use the direct spray regime of fuel oil, avoid tempering and spontaneous combustion, reduces
The risk that head of combustion chamber is burnt；Main combustion stage uses the oil-poor direct spray regime of multiple spot, and main combustion stage two-stage axial swirler guarantees
Fuel oil is mixed with air Quick uniform, improves efficiency of combustion, and average equivalent ratio is 0.4~0.9 in main combustion stage, reduces combustion chamber
Main combustion stage mean temperature, to reduce pollutant NOXDischarge；
3）Grade on duty forms diffusion combustion mode using swirl atomizer, and guaranteeing can reliable and stable burning under each operating condition；Main combustion stage
Using oil-poor lean direct injection mode, the problems such as effectively avoiding spontaneous combustion and be tempered；For different operating conditions：In 7% thrust
When operating condition, only level work on duty；In 30% thrust operating condition, grade on duty and the first main combustion stage are worked at the same time, to take into account the operating condition
Lower pollutant emission and efficiency of combustion；In 85% and 100% thrust operating condition, grade on duty and the first main combustion stage, the second main combustion stage are same
When work；Under each operating condition, in the main combustion stage of combustion chamber average equivalent ratio be 0.4~0.9, guarantee combustion chamber main combustion stage mean temperature compared with
It is low, so that pollutant emission be effectively reduced, combine efficiency of combustion.
Detailed description of the invention
Fig. 1 is a kind of overall schematic of the oil-poor low pollution combustor directly sprayed of multiple spot of the invention；
Fig. 2 is a kind of cross-sectional view of the oil-poor low pollution combustor directly sprayed of multiple spot of the invention
Fig. 3 is a kind of head front view of the oil-poor low pollution combustor directly sprayed of multiple spot of the invention；
Fig. 4 be the oil-poor low pollution combustor directly sprayed of a kind of multiple spot of the invention 7 points of oil-poor direct injection heads just
View；
Fig. 5 is a kind of cuing open for the oil-poor direct injection head of 7 points of the oil-poor low pollution combustor directly sprayed of multiple spot of the invention
Depending on enlarged drawing；
Fig. 6 be the oil-poor low pollution combustor directly sprayed of a kind of multiple spot of the invention 5 points of oil-poor direct injection heads just
View；
Wherein, 1- diffuser, 2- combustion box, 3- head of combustion chamber, 4- burner inner liner, 5-7 point are oil-poor directly sprays head, 6-
5 points it is oil-poor directly spray heads, 7- grade on duty, the first main combustion stage of 8-, the second main combustion stage of 9-, 10- blending hole, 11- Fuel Injector Bar,
The grade swirl atomizer outlet on duty 12- grade swirl atomizer internal channel on duty, 13-, 14- beveling hole, 15- grade swirl atomizer circle on duty
Platform, 16- grade expanding channel on duty, 17- main combustion stage expanding channel, the outlet of 18- main combustion stage fuel nozzle, the spray of 19- main combustion stage fuel oil
The central axial air accelerated passage of mouth outer tunnel, 20- main combustion stage, 21- main combustion stage level-one cyclone, 22- main combustion stage second level eddy flow
Device, 23- main combustion stage level-one swirl channel converging portion, 24- main combustion stage second level swirl channel converging portion.
Specific embodiment
It is clear to keep the purpose of the present invention, technical solution and effect clearer, referring to the drawings and give an actual example to this
Invention is further described.It should be understood that specific implementation described herein is not used to limit only to explain the present invention
The present invention.
As shown in Figure 1 and 2, the present invention provides a kind of based on the oil-poor low pollution combustor directly sprayed of multiple spot, including expands
Depressor 1, combustion box 2, head of combustion chamber 3, burner inner liner 4.Subtract by the compressed high-speed flow of compressor by diffuser 1
After fast diffusion, it is divided into two strands, one enters the inside-and-outside ring channel that combustion box 2 and 4 wall surface of burner inner liner are formed, and another stock is logical
Cross head of combustion chamber 3, into burner inner liner 4 in participate in burning.Air-flow a part in inner and outer ring channel is flowed into for burner inner liner
Cooling, another part enters in burner inner liner from blending hole 10, adjusts the Temperature Distribution of combustor exit.Into head of combustion chamber 3
Air mass flow account for the 60%~85% of total air mass flow, cooling air volume accounts for 15%~20%, into the air capacity duty of blending hole
The 0%~20% of tolerance.
As shown in figure 3, head of combustion chamber 3 is circumferential using 7 points of oil-poor directly injection heads and 5 points of oil-poor directly injection heads
It is interlaced to be uniformly arranged.As shown in figure 4, when 7 center of grade on duty two sides setting 8 two cyclones of the first main combustion stage,
And it is 7 points of oil-poor direct injection heads 5 that the structure of second 9 four cyclones of main combustion stage is arranged in 7 outer ring of grade on duty and inner ring；
As shown in fig. 6, the structure that second 9 four cyclones of main combustion stage ought only be arranged on 7 outer ring of grade on duty and inner ring is 5 points oil-poor
Directly spray head 6.
The present invention uses grading combustion technology, and head of combustion chamber 3 divides for grade 7 on duty, the first main combustion stage 8 and the second main combustion stage
9, wherein main combustion stage has also carried out fractional combustion.First main combustion stage 8 and the second main combustion stage 9 are uniformly circumferentially distributed in outside grade 7 on duty,
Main combustion stage expanding channel 17 exported with grade expanding channel 16 on duty it is concordant, using welding etc. modes connect.In 7% thrust operating condition,
Only grade 7 on duty works, and using local fuel-rich combustion mode, grade head outlet equivalent proportion on duty is 0.6~1.6, guarantees that stabilization can
By burning；In 30% thrust operating condition, grade 7 on duty and the first main combustion stage 8 are worked at the same time, and take into account efficiency of combustion and dirt under the operating condition
Contaminate object discharge；In 85% and 100% thrust operating condition, grade 7 on duty and the first main combustion stage 8, the second main combustion stage 9 are worked at the same time.Big
When operating condition, average equivalent ratio is partially poor in the main combustion stage of combustion chamber, and average equivalent ratio is 0.4~0.9, guarantees to put down in the main combustion stage of combustion chamber
Equal temperature is lower, so that pollutant emission be effectively reduced.
As shown in Fig. 4 ~ 5, grade 7 on duty mainly includes grade swirl atomizer internal channel 12 on duty, grade swirl atomizer 13 on duty, value
Class's swirl atomizer rotary table 15, grade expanding channel 16 on duty, the beveling hole 14 in grade expanding channel on duty.Grade fuel nozzle on duty
Using rotarytype injector, guarantee that fuel atomization effect is good.
Grade air-flow on duty enters grade expanding channel 16 on duty by the beveling hole 14 on grade expanding channel on duty, in channel
Eddy flow is formed, forms recirculating zone in downstream, grade fuel oil on duty is centrifuged from grade on duty and is sprayed by grade swirl atomizer internal channel 12 on duty
Mouth 13 sprays, and is then mixed to form combustible gas with rotary air Quick uniform in grade expanding channel 16 on duty, forms diffusion on duty
Combustion flame provides and stablizes high temperature dot fire source under each operating condition.
The oil-poor injection head construction of each unit is identical in first main combustion stage 8, the second main combustion stage 9, by main combustion stage expanding channel
17, main combustion stage fuel nozzle outlet 18, main combustion stage fuel nozzle outer tunnel 19, the central axial air accelerated passage 20 of main combustion stage,
Main combustion stage level-one cyclone 21, main combustion stage second cyclone 22, main combustion stage level-one swirl channel converging portion 23 and main combustion stage second level
Swirl channel converging portion 24 forms.Air-flow into main combustion stage is three strands, one is accelerated logical by the central axial air of main combustion stage
Road 20 forms stronger air axial velocity, one is by main combustion stage level-one swirl channel 21, after swirl vane, generates
Rotary motion, one is by main combustion stage second level swirl channel 22, after swirl vane, generates rotary motion, this three strands of air-flows
Main combustion stage expanding channel 17 is fully entered, and forms recirculating zone in downstream.Fuel oil is sprayed by simple nozzle from main combustion stage fuel oil
Mouth outlet 18 spray, into main combustion stage fuel nozzle outer tunnel 19 after enter main combustion stage level-one swirl channel 21, in main combustion stage one
Grade swirl channel 21 forms oil whirl layer, under level-one swirl channel 21 and the mutual shear action of 22 air inlet of second level swirl channel
Broken atomization, and mixed with air Quick uniform, form combustible gas.Grade 7 on duty, the first main combustion stage 8 are fired in second main combustion stage 9
Oil burner nozzle can use rotarytype injector, the first main combustion stage 8, the spray of 9 fuel oil of the second main combustion stage with independent control, grade fuel nozzle on duty
Mouth uses simple nozzle, and main combustion stage fuel oil enters in main combustion stage inward turning circulation road by main combustion stage fuel nozzle outer tunnel 19.
The principle of the present invention is as follows：
By rationally controlling local equivalent proportion in combustion chamber, when air-fuel mixture uniformity coefficient fires combustion chamber average equivalent to control
The Temperature Distribution and mean temperature for burning area, are effectively reduced pollutant emission, reach the purpose of low emission, combine each operating condition combustion
Burn efficiency.High-speed flow from compressor is divided into two strands after 1 deceleration diffusion of diffuser, one enters combustion box 2
The inside-and-outside ring channel formed with 4 wall surface of burner inner liner, for 4 wall surface gaseous film control of burner inner liner and 10 air inlet of blending hole for adjusting
Combustor exit temperature distribution；Another stock by head of combustion chamber 3, into burner inner liner 4 in participate in burning, head of combustion chamber 3 into
Tolerance accounts for the 60%~85% of 1 air inflow of diffuser.In 7% thrust operating condition, only grade nozzle operation on duty, is expanded using local rich oil
Combustion system is dissipated, guarantees reliable and stable burning；In 30% thrust operating condition, grade 7 on duty and the first main combustion stage 8 are worked at the same time, simultaneously
Take into account efficiency of combustion and pollutant emission under the operating condition；In 85% and 100% thrust operating condition, grade 7 on duty and the first main combustion stage 8,
Second main combustion stage 9 works at the same time；In big operating condition, average equivalent ratio is partially poor in the main combustion stage of combustion chamber, guarantees combustion chamber main combustion stage
Interior mean temperature is lower, so that pollutant emission be effectively reduced.Therefore, the oil-poor direct injection combustion with reduced pollutants of multiple spot of the invention
Burning is stablized in room, and has the advantages that take into account low emission and high burning efficiency.
Claims (10)
1. the oil-poor low pollution combustor directly sprayed of a kind of multiple spot, including diffuser (1), the burning being connect with diffuser (1)
The burner inner liner (4) being arranged inside room casing (2), combustion box (2), the head of combustion chamber (3) being connected with burner inner liner (4),
It is characterized in that, the grade on duty (7) on head of combustion chamber (3) is center cyclone, with Fuel Injector Bar（11）It is connected；
The first main combustion stage is arranged in the two sides at described grade on duty (7) center（8）Two cyclones and grade on duty (7) outer ring and
Second main combustion stage is set in inner ring（9）The structure of four cyclones is 7 points of oil-poor directly injections head (5)；
The second main combustion stage is only arranged in grade (7) on duty on outer ring and inner ring（9）The structure of four cyclones is 5 points oil-poor direct
It sprays head (6)；
The grade on duty (7) is rotarytype injector, the first main combustion stage（8）, the second main combustion stage（9）For simple nozzle；
The head of combustion chamber (3) is using 7 points of oil-poor directly injections head (5) and 5 points of oil-poor directly injection head (6) weeks
It is uniformly arranged to interlaced.
2. the oil-poor low pollution combustor directly sprayed of a kind of multiple spot according to claim 1, which is characterized in that described
Grade (7) on duty includes grade expanding channel (16) on duty, grade expanding channel on duty（16）On beveling hole (14), with grade on duty expand
The grade swirl atomizer rotary table (15) on duty of channel (16) connection；Grade on duty is disposed with after grade swirl atomizer rotary table (15) on duty
Swirl atomizer (13), the grade swirl atomizer internal channel (12) on duty being connected with grade swirl atomizer (13) on duty.
3. the oil-poor low pollution combustor directly sprayed of a kind of multiple spot according to claim 1, which is characterized in that described
First main combustion stage（8）, the second main combustion stage（9）The middle oil-poor injection head construction of each unit is identical, including main combustion stage expanding channel
(17), two-stage axial swirler, the main combustion stage second cyclone (22) respectively being connect with main combustion stage expanding channel (17), main combustion
The main combustion stage level-one cyclone (21) connected inside grade second cyclone (22), main combustion stage level-one cyclone (21) are connected with main combustion
The central axial air accelerated passage (20) of grade.
4. the oil-poor low pollution combustor directly sprayed of a kind of multiple spot according to claim 1, which is characterized in that described
Burner inner liner (4) wall surface is provided with blending hole（10）.
5. the oil-poor low pollution combustor directly sprayed of a kind of multiple spot according to claim 2 or 3, which is characterized in that institute
The grade expanding channel on duty stated（16）It is concordant with the outlet of main combustion stage expanding channel (17).
6. the oil-poor low pollution combustor directly sprayed of a kind of multiple spot according to claim 3, which is characterized in that described
Main combustion stage second level swirl channel converging portion is formed on the outside of main combustion stage second cyclone (22)（24）, the main combustion stage level-one eddy flow
Main combustion stage level-one swirl channel converging portion is formed between device (21) and main combustion stage second cyclone (22)（23）.
7. the oil-poor low pollution combustor directly sprayed of a kind of multiple spot according to claim 3, which is characterized in that described
The central axial air accelerated passage (20) of main combustion stage, main combustion stage level-one cyclone (21), main combustion stage second cyclone (22) three-level
Intake method passes through main combustion stage fuel nozzle outer tunnel（19）It is exported with main combustion stage fuel nozzle（18）Connection.
8. the oil-poor low pollution combustor directly sprayed of a kind of multiple spot according to claim 1, which is characterized in that described
Grade (7) outlet on duty equivalent proportion is 0.6~1.6.
9. the oil-poor low pollution combustor directly sprayed of a kind of multiple spot according to claim 1, which is characterized in that described
7 points of oil-poor directly injections head (5) and 5 points of oil-poor outlet equivalent proportions for directly spraying head (6) are 0.4~0.9；7 points oil-poor
Directly injection head (5) and 5 points of oil-poor direct injection head (6) numbers are respectively 4~15.
10. the oil-poor low pollution combustor directly sprayed of a kind of multiple spot according to claim 1, which is characterized in that 7%
When thrust operating condition, only grade (7) work on duty；In 30% thrust operating condition, grade (7) on duty and the first main combustion stage（8）It works at the same time；
In 85% and 100% thrust operating condition, grade (7) on duty, the first main combustion stage（8）, the second main combustion stage（9）It works at the same time.
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| CN201810219175.XA CN108844097B (en) | 2018-03-16 | 2018-03-16 | Low-pollution combustion chamber for multi-point lean oil direct injection |
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| CN201810219175.XA CN108844097B (en) | 2018-03-16 | 2018-03-16 | Low-pollution combustion chamber for multi-point lean oil direct injection |
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| CN108844097B CN108844097B (en) | 2020-04-24 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953603A (en) * | 2019-12-05 | 2020-04-03 | 中国航发四川燃气涡轮研究院 | Multi-oil-path fuel oil spraying device suitable for radial grading main combustion chamber |
| CN111829008A (en) * | 2020-07-06 | 2020-10-27 | 南京航空航天大学 | Rotary detonation combustion chamber based on integration of shearing airflow and fuel injection |
| CN115095885A (en) * | 2022-06-06 | 2022-09-23 | 中国船舶集团有限公司***工程研究院 | Combined multi-point LDI oblique-feeding combustion chamber |
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| CN115095885A (en) * | 2022-06-06 | 2022-09-23 | 中国船舶集团有限公司***工程研究院 | Combined multi-point LDI oblique-feeding combustion chamber |
| CN115095885B (en) * | 2022-06-06 | 2024-02-09 | 中国船舶集团有限公司***工程研究院 | Combined multi-point LDI inclined combustion chamber |
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