CN105423341B - There is the premixed low emission gas turbine combustion chamber of flame on duty - Google Patents
There is the premixed low emission gas turbine combustion chamber of flame on duty Download PDFInfo
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- CN105423341B CN105423341B CN201511007113.5A CN201511007113A CN105423341B CN 105423341 B CN105423341 B CN 105423341B CN 201511007113 A CN201511007113 A CN 201511007113A CN 105423341 B CN105423341 B CN 105423341B
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- duty
- combustion chamber
- shell
- inner liner
- burner inner
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Classifications
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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
- F23R3/16—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration with devices inside the flame tube or the combustion chamber to influence the air or gas flow
- F23R3/18—Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants
- F23R3/20—Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants incorporating 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)
Abstract
A kind of premixed low emission gas turbine combustion chamber for having flame on duty,It is related to gas-turbine combustion chamber,Including igniter,Shell,Burner inner liner and premix section,Combustion chamber is made up of 16 separate igniters,Separate igniter includes a shell,One burner inner liner,One nozzle on duty and two air control valves,Deflector is installed on shell,Bypass pipe and air control valve,Described bypass pipe one end is installed on shell,The bypass pipe other end is installed on flame drum tail,Described air control valve is connected with bypass pipe,And air control valve is located at housing exterior,Described nozzle on duty,Burner inner liner is located at enclosure,Burner inner liner is provided with endless tube and cyclone,Endless tube is connected with premix section,Nozzle on duty is installed on burner inner liner,The cooling zone that burner inner liner is formed with deflector,Can effective cooling flame tube wall surface temperature,Improve combustion chamber service life；The present apparatus can be applied to electric power, petrochemical industry etc. using natural gas as on the industry gas turbine of fuel.
Description
Technical field：
The present invention relates to gas-turbine combustion chamber, and in particular to a kind of premixed low emission gas turbine for having flame on duty
Combustion chamber.
Background technology：
Gas turbine is since last century early forties come out, because it has big power, efficiency high, small volume, starting
It hurry up, smooth running, manipulate the series of advantages such as simple, maintaining convenience, reliable operation, taken in short over half a century
The development advanced by leaps and bounds was obtained, had been obtained in numerous areas such as the electric power of countries in the world, petrochemical industry, traffic, metallurgy, military affairs increasingly wide
General application.The horizontal height of gas turbine technology turned into that a national science and technology is horizontal and the important symbol of military strength it
One.With the worsening of the variation of variety of energy sources, the extensive use of gas turbine and environmental pollution, the environmental protection sight of people
Thought increasingly strengthens, and increasingly stricter pollutant emission standard is constantly released in countries in the world.Industry gas turbine is to pollutant, especially
It is stricter to NOx and CO emission request, and low emission has become one of important performance indexes of advanced gas turbine.
To realize that gas turbine low emission controls, combustion chamber typically uses lean fuel premixed combustion technology, but can directly result in combustion zone temperature
Spend relatively low, combustion stability is just deteriorated, flame-out danger easily occurs.The greatest problem that lean fuel premixed combustion technology faces is just
It is that combustion stability decline, the tempering of premix chamber and the change of load or the change of fuel value and composition are stopped working.For
Solve problems, flame on duty can be introduced in combustion chamber, can effectively improve the stability of flame, thus research have it is on duty
The premixed low emission combustor of flame has important application value.
The content of the invention：
The present invention is to solve the easy lean blowout in the high or low discharge combustion chamber of conventional combustion chamber contamination thing discharge capacity, reliability
The problem of poor, and a kind of premixed low emission gas turbine combustion chamber for having flame on duty is provided, it is easy to use, operation is simple
List, it is easy to large-scale promotion application.
The technical solution adopted by the present invention is：A kind of premixed low emission gas turbine combustion chamber for having flame on duty, bag
Include igniter, shell, burner inner liner and premix section, combustion chamber to be made up of 16 separate igniters, separate igniter includes one
Shell, a burner inner liner, a nozzle on duty and two air control valves, deflector, bypass pipe and air are installed on shell
Regulating valve, described bypass pipe one end are installed on shell, and the bypass pipe other end is installed on flame drum tail, and described air is adjusted
Section valve is connected with bypass pipe, and air control valve is located at housing exterior, and described nozzle on duty, burner inner liner are located at enclosure,
Burner inner liner is provided with endless tube and cyclone, and endless tube is connected with premix section, and nozzle on duty, burner inner liner and water conservancy diversion are provided with burner inner liner
Cooling zone is formed between plate, ring cavity C is formed between deflector and shell, mounting guiding board position is circumferentially distributed on shell vibration damping
Hole, whole combustion chamber are provided with two igniters, connected between two adjacent igniters using flame tube interconnector.
Described premix section is provided with four main gas outlets and four main gas outlets are evenly distributed in premix section.
Described endless tube is connected with main fuel gas inlet.
The beneficial effects of the invention are as follows：1st, combustion chamber is easy to implement pair using the Split type structure of 16 separate igniters
The maintenance and replacing of each separate igniter；
2nd, combustion chamber, by introducing flame on duty, can effectively improve the stability of flame using nozzle on duty is carried；
3rd, resonator is formed between deflector and shell, mounting guiding board position is circumferentially distributed on shell vibration damping hole, has
Effect reduces igniter pressure fluctuation, improves combustion chamber service life and combustibility；
4th, combustion chamber is combined using premix twice, is realized that combustion gas first mixes after-combustion with air, is ensured combustion chambers burn
Energy；
5th, conventional combustion room air regulating valve is typically located at combustion chamber, is high-temperature component, its poor reliability, and dimension
Shield is more difficult, and this device air control valve is located at outside combustion chamber, is non high temperature part, and effective raising combustion chamber operational can
By property and it is easy to safeguard with changing；
6th, combustion chamber enters combustion zone air capacity using air adjustment valve regulation, can effectively realize pollutant low emission
Purpose；
7th, the cooling zone that burner inner liner and deflector are formed, effectively can use in cooling flame tube wall surface temperature, raising combustion chamber
Life-span；
8th, present invention can apply to electric power, petrochemical industry etc. using natural gas as on the industry gas turbine of fuel.
Brief description of the drawings：
Fig. 1 is schematic structural view of the invention.
Fig. 2 is A-A sectional views of the present invention.
Embodiment：
With reference to each figure, a kind of premixed low emission gas turbine combustion chamber for having flame on duty, including igniter, shell,
Burner inner liner and premix section, combustion chamber are made up of 16 separate igniters, and separate igniter includes 4, flames of a shell
Cylinder 5, nozzles 1 on duty and two air control valves 7, deflector 8, bypass pipe 6 and air control valve 7 are installed on shell 4,
Described one end of bypass pipe 6 is installed on shell 4, and the other end of bypass pipe 6 is installed on the afterbody of burner inner liner 5, described air adjustment
Valve 7 is connected with bypass pipe 6, and air control valve 7 is located at outside shell 4, and described nozzle on duty 1, burner inner liner 5 are located at shell 4
Inside, burner inner liner 5 are provided with endless tube 10 and cyclone 3, and endless tube 10 is connected with premix section 2, and nozzle on duty is provided with burner inner liner 5
1, cooling zone is formed between burner inner liner 5 and deflector 8, ring cavity C14 is formed between deflector 8 and shell 4, installs and leads on shell 4
The position of flowing plate 8 is circumferentially distributed vibration damping hole 17, and whole combustion chamber is provided with two igniters 19, adopted between two adjacent igniters
Connected with flame tube interconnector 20.Described premix section 2 is provided with four main gas outlets 18 and four main gas outlets 18 are uniformly distributed
In premix section 2.Described endless tube 10 is connected with main fuel gas inlet 12.
The operation principle of the present invention：Air enters from air intake 16, flows through the cooling that burner inner liner 5 is formed with deflector 8
Band, into ring cavity B13 after flow through premix section 2, premix section 2 at, combustion gas from main fuel gas inlet 12 enter endless tube 10 after, from premix
The main aperture of gas outlet 18 outflow in section 2, now, after air completes preliminary premix with combustion gas, into ring cavity A21, passes through rotation
Stream device 3 carries out secondary premix, and the gaseous mixture after finally premixing is burnt into the domain of combustion chamber main burning area 15；Combustion gas 11 on duty
Enter combustion zone on duty through the inner passage of nozzle 1 on duty, burnt by diffusion way, improve combustion stability；For reality
The purpose of existing combustion chamber low emission, it is using the air control valve 7 outside shell 4 that the part entered by air intake 16 is empty
Gas branches to the afterbody of igniter flame cylinder 5 through bypass pipe 6, is not involved in burning, i.e., enters main burning using the regulation of air control valve 7
The air capacity in region 15, the cooling zone that burner inner liner 5 is formed with deflector 8, for the wall surface temperature of cooling flame cylinder 5.Adopt combustion chamber
With the Split type structure of 16 separate igniters, the maintenance and replacing to each separate igniter are easy to implement；Combustion chamber uses
With nozzle 1 on duty, by introducing flame on duty, the stability of flame can be effectively improved；Shape between deflector 8 and shell 4
Into resonator, on shell 4, the position of mounting guiding board 8 is circumferentially distributed vibration damping hole 17, effectively reduces igniter pressure fluctuation, improves
Combustion chamber service life and combustibility；Combustion chamber is combined using premix twice, realizes that combustion gas first mixes after-combustion with air, is protected
Demonstrate,prove combustion chambers burn performance；Conventional combustion room air regulating valve 7 is typically located at combustion chamber, is high-temperature component, its is reliable
Property it is poor, and safeguard more difficult, this device air control valve 7 be located at outside combustion chamber, be non high temperature part, and effective raising is fired
Burn room functional reliability and be easy to safeguard and change；Combustion chamber enters combustion zone air capacity using the regulation of air control valve 7, can
Effectively realize the purpose of pollutant low emission；The cooling zone that burner inner liner 5 and deflector 8 are formed, can the effective wall of cooling flame cylinder 5
Temperature, improve combustion chamber service life；The present apparatus can be applied to the industry gas turbine using natural gas as fuel such as electric power, petrochemical industry
On.
Claims (3)
1. a kind of premixed low emission gas turbine combustion chamber for having flame on duty, including igniter, shell, burner inner liner and premix
Section, it is characterised in that：Combustion chamber is made up of 16 separate igniters, and separate igniter includes a shell（4）, a flame
Cylinder（5）, a nozzle on duty（1）And two air control valves（7）, shell（4）On deflector is installed（8）, bypass pipe（6）And
Air control valve（7）, described bypass pipe（6）One end is installed on shell（4）On, bypass pipe（6）The other end is installed on burner inner liner
（5）Afterbody, described air control valve（7）With bypass pipe（6）Connection, and air control valve（7）Positioned at shell（4）Outside, institute
The nozzle on duty stated（1）, burner inner liner（5）Positioned at shell（4）Inside, burner inner liner（5）It is provided with endless tube（10）With cyclone（3）,
Endless tube（10）With premixing section（2）Connection, burner inner liner（5）On nozzle on duty is installed（1）, burner inner liner（5）With deflector（8）Between
Form cooling zone, deflector（8）With shell（4）Between form ring cavity C（14）, shell（4）Upper mounting guiding board（8）Position is circumferential
Vibration damping hole is distributed with（17）, whole combustion chamber is provided with two igniters（19）, flame tube interconnector is used between two adjacent igniters
（20）Connection.
2. the premixed low emission gas turbine combustion chamber according to claim 1 for having flame on duty, it is characterised in that：Institute
The premix section stated（2）It is provided with four main gas outlets（18）And four main gas outlets（18）It is evenly distributed on premix section（2）
On.
3. the premixed low emission gas turbine combustion chamber according to claim 1 for having flame on duty, it is characterised in that：Institute
The endless tube stated（10）With main fuel gas inlet（12）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511007113.5A CN105423341B (en) | 2015-12-30 | 2015-12-30 | There is the premixed low emission gas turbine combustion chamber of flame on duty |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511007113.5A CN105423341B (en) | 2015-12-30 | 2015-12-30 | There is the premixed low emission gas turbine combustion chamber of flame on duty |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105423341A CN105423341A (en) | 2016-03-23 |
| CN105423341B true CN105423341B (en) | 2017-12-15 |
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| CN201511007113.5A Active CN105423341B (en) | 2015-12-30 | 2015-12-30 | There is the premixed low emission gas turbine combustion chamber of flame on duty |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10415833B2 (en) | 2017-02-16 | 2019-09-17 | General Electric Company | Premixer for gas turbine combustor |
| CN108375081B (en) * | 2018-03-06 | 2023-08-08 | 哈尔滨广瀚燃气轮机有限公司 | Dual-fuel annular combustion chamber using fuel oil and natural gas as fuel |
| CN109519971A (en) * | 2018-12-28 | 2019-03-26 | 中国船舶重工集团公司第七0三研究所 | A kind of low emission gas turbine |
| CN111043627B (en) * | 2019-12-31 | 2024-06-28 | 新奥能源动力科技（上海）有限公司 | Combustion chamber structure and miniature gas turbine |
| CN112483248B (en) * | 2020-12-03 | 2022-04-15 | 山东赛马力发电设备有限公司 | Device for improving combustion efficiency of combustion chamber of gas turbine |
| CN115355528A (en) * | 2022-09-02 | 2022-11-18 | 中航通飞华南飞机工业有限公司 | Oblique flow type combustion chamber of turboprop engine |
| CN115355534B (en) * | 2022-09-05 | 2024-03-12 | 中国联合重型燃气轮机技术有限公司 | Gas turbine fuel mixing system and gas turbine |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100236245A1 (en) * | 2009-03-19 | 2010-09-23 | Johnson Clifford E | Gas Turbine Combustion System |
| JP5653705B2 (en) * | 2010-09-30 | 2015-01-14 | 三菱重工業株式会社 | Recovery air cooling gas turbine combustor cooling structure |
| CH704829A2 (en) * | 2011-04-08 | 2012-11-15 | Alstom Technology Ltd | Gas turbine group and associated operating method. |
| US9447971B2 (en) * | 2012-05-02 | 2016-09-20 | General Electric Company | Acoustic resonator located at flow sleeve of gas turbine combustor |
| CN205261637U (en) * | 2015-12-30 | 2016-05-25 | 哈尔滨广瀚燃气轮机有限公司 | What have flame on duty mixes formula low emission combustion chamber in advance |
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| CN105423341A (en) | 2016-03-23 |
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