CN106523156B - A kind of gas fuel mixer - Google Patents
A kind of gas fuel mixer Download PDFInfo
- Publication number
- CN106523156B CN106523156B CN201611252505.2A CN201611252505A CN106523156B CN 106523156 B CN106523156 B CN 106523156B CN 201611252505 A CN201611252505 A CN 201611252505A CN 106523156 B CN106523156 B CN 106523156B
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- China
- Prior art keywords
- hybrid channel
- air
- fuel
- mixing tube
- cartridge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/20—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products
- F02C3/22—Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being gaseous at standard temperature and pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/32—Inducing air flow by fluid jet, e.g. ejector action
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/22—Fuel supply systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C9/00—Controlling gas-turbine plants; Controlling fuel supply in air- breathing jet-propulsion plants
- F02C9/48—Control of fuel supply conjointly with another control of the plant
- F02C9/50—Control of fuel supply conjointly with another control of the plant with control of working fluid flow
Abstract
The invention discloses a kind of gas fuel mixer, is related to gas turbine technology field, including cartridge, air hose and nozzle, and the air hose is sheathed on the outside of the cartridge, and the nozzle is arranged on the cartridge and the air hose front end;The nozzle is provided with several first hybrid channels and the second hybrid channel, the front end of first hybrid channel and the second hybrid channel is used to spray mixed gas, tail end is used for air inlet, the gas fuel mixer of the present invention can shorten fuel and incorporation time of the air in the first hybrid channel and the second hybrid channel, and uniform mixed gas reduces the probability and NO of hot localised points appearanceXThe discharge of pollutant, and the stability of burning is improved, reduce the damage of blender.
Description
Technical field
The present invention relates to gas turbine technology field, more particularly to a kind of gas fuel mixer.
Background technology
Gas turbine as the rotating machinery for heat energy being converted to mechanical energy, generally include compressor, combustion chamber, turbine,
Control system and auxiliary equipment.Important component of the combustion chamber as gas turbine, between compressor and turbine, it is made
Good mixing and burning is carried out with the pressure-air for being to send fuel and compressor, in the hope of most effectively the change of fuel
The heat energy of high-temperature fuel gas can be converted into by learning, and then improve the acting ability of combustion gas before turbine.Design a reliable, economic, low dirt
The combustion chamber and the stability and high efficiency low stain work of gas turbine that dyer makees are closely bound up.
With the raising to gas turbine parameter and emission request, while to save fuel, poor premixed combustion becomes logical
Reduction average flame temperature is crossed to reduce NOXDischarge, the effective means for reducing turbine-inlet temperature.Poor premixed combustion refers to
The relation of the supply of fuel and oxidant than under conditions of relatively dilute, the two before combustion chamber is entered by evenly mixing, so as to drop
The possibility that low hot localised points occur, relatively low flame temperature is maintained, reduce NOXDischarge.It can be seen that fuel is entering with oxidant
Mixed before entering combustion chamber completely to NOXThe importance of discharge.Fuel and oxidant are combined by blender completion.It is mixed
The mixed performance quality of clutch directly affects the probability of hot localised points appearance, also just affects NOXDischarge.In addition,
The mixability of fuel and oxidant has an effect on combustion stability, and stable burning advantageously reduces tempering, flame-out possibility
Property, the efficient conversion of the energy is realized, while be also beneficial to protect the permanently effective operation of combustion chamber equipment.Many scholars are for poor pre-
Mixed burned flame stability is studied, it is found that equivalent proportion fluctuates caused by mixing is uneven in poor premixed combustion
It is the primary factor for inducing combustion instability.The technology of enhancing mixing at present mainly has two major classes:For liquid fuel generally
Cyclone can be increased after nozzle to strengthen atomization and mixing;And for gaseous fuel, the structure generally use of blender is micro-
The mode of yardstick cross jet realizes efficient mixing.People meet fuel and oxygen based on the two big various structures of Technology design above
The well-mixed requirement of agent.It is directed to for gaseous fuel, existing technology is respectively by individually setting by air and fuel
The air chamber and fuel chambers put, which are injected into fuel gas passage, realizes mixing, and the structure is not only complicated, and also needs to larger
Space and long period could preferably mixing air and gaseous fuels.
Therefore, in order to reduce use gaseous fuel gas turbine NOXDischarge, design a kind of high gas of mixing efficiency
Fluid fuel blender is particularly important.
The content of the invention
It is an object of the invention to provide a kind of gas fuel mixer, to solve the above-mentioned problems of the prior art, makes
The gaseous fuel and air of gas turbine can be mixed preferably in a mixer, to reduce the probability of hot localised points appearance,
Reduce NOXDischarge.
To achieve the above object, the invention provides following scheme:
The invention provides a kind of gas fuel mixer, including cartridge, air hose and nozzle, the air hose is arranged
On the outside of the cartridge, the nozzle is arranged on the cartridge and the air hose front end.
The nozzle is provided with several first hybrid channels and the second hybrid channel, first hybrid channel and second
The front end of hybrid channel is used to spray mixed gas, and tail end is used for air inlet;First hybrid channel is located at the nozzle
Outer radial periphery, second hybrid channel is located at first hybrid channel radially inner side;First hybrid channel and institute
State and be provided with several Cooling Holes on the inside of between the second hybrid channel and second hybrid channel;The Cooling Holes and the air
Pipe connects.
The cartridge front end closing, the cartridge are circumferentially with some first fuel mix apertures, first mixing
The side wall of passage is provided with several the first air mix apertures, the first fuel mix aperture and the first air mixing aperture
To alignment, the cartridge is provided with the first mixing tube, and described first mixing tube one end connects the first fuel mix aperture, separately
One end extends to the end of the first air mix aperture, and the external diameter of first mixing tube mixes less than first air
The internal diameter in hole.
The cartridge is circumferential and is provided with some second fuel mix apertures positioned at the first fuel mix aperture front portion, described
The side wall of second hybrid channel is provided with several the second air mix apertures, the second fuel mix aperture and second air
Mix aperture radially aligned, the cartridge are provided with the second mixing tube, and described second mixing tube one end connects second fuel
Mix aperture, the other end extend to the end of the second air mix aperture, and the external diameter of second mixing tube is less than described the
The internal diameter of two air mix apertures.
Preferably, the other end of first mixing tube and the outer wall of first hybrid channel are tangent;Described second is mixed
The other end and the outer wall of second hybrid channel for closing pipe are tangent.
Preferably, the internal diameter of the diameter of the first air mix aperture and first mixing tube is equal, and described first is mixed
It is 0.2~0.4 that the internal diameter of pipe, which is closed, with the diameter ratio of the first air mix aperture;The diameter of the second air mix aperture and
The internal diameter of second mixing tube is equal, and the internal diameter of second mixing tube and the diameter ratio of the second air mix aperture are
0.2~0.4.
Preferably, each first hybrid channel correspond to two the first air mix apertures, two described the
One mixing tube and two the first fuel mix apertures, and the internal diameter sum of two first mixing tubes mixes with described first
The sectional area ratio of passage is 0.1~0.2;Each second hybrid channel correspond to the second air mix aperture,
One second mixing tube and the second fuel mix aperture, and the internal diameter of second mixing tube mixes with described second
The sectional area ratio for closing passage is 0.1~0.2.
Preferably, the area sum of the Cooling Holes and first hybrid channel and the section of second hybrid channel
The ratio of product sum is 0.4~0.6.
Preferably, the quantity of first hybrid channel and second hybrid channel is equal and is uniformly interspersed.
Preferably, the quantity of first hybrid channel and second hybrid channel is 10.
Preferably, in addition to the mounting seat of the cartridge and the air hose tail end is arranged at, in the mounting seat
Portion is provided with fuel inlet, and the fuel inlet connects with the cartridge, and the tail end of the air hose is circumferentially with several skies
Gas import.
The present invention achieves following technique effect relative to prior art:
The gaseous fuel that the first mixing tube and the second mixing tube of the gas fuel mixer of the present invention eject can be to sky
Endotracheal partial air forms injection, and before the first hybrid channel and the second hybrid channel is entered, fuel is just and part
Air has carried out mixed once, at the same time, in the first hybrid channel and the second hybrid channel, fuel Radial Flow, air
Axially flowing, the two is the form of lateral cross, and the secondary mixing in the form of minute yardstick cross jet of fuel and air, this is mixed twice
The mixability for enhancing fuel and air is closed, shortens fuel and air in the first hybrid channel and the second hybrid channel
Incorporation time;Uniform mixed gas reduces the probability and pollutant NO of hot localised points appearanceXDischarge, and improve burning
Stability, reduce the damage of blender.The adaptability of gas fuel mixer of the present invention is stronger, can adapt to natural gas,
The multiple gases fuel such as synthesis gas, pure hydrogen, has important application value in gas turbine field.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is the schematic cross-sectional view one of gas fuel mixer of the present invention;
Fig. 2 is the schematic cross-sectional view two of gas fuel mixer of the present invention;
Fig. 3 is the perspective cross-sectional schematic diagram of gas fuel mixer of the present invention;
Fig. 4 is Fig. 3 partial enlarged drawing;
Wherein, 1- cartridges, 2- air hoses, 3- nozzles, the hybrid channels of 4- first, the hybrid channels of 5- second, 6- Cooling Holes,
7- the first fuel mix apertures, 8- the first air mix apertures, the mixing tubes of 9- first, 10- the second fuel mix apertures, the air of 11- second
Mix aperture, the mixing tubes of 12- second, 13- mounting seats, 14- fuel inlets, 15- air intlets.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
It is an object of the invention to provide a kind of gas fuel mixer, to solve the above-mentioned problems of the prior art, makes
The gaseous fuel and air of gas turbine can be mixed preferably in a mixer, to reduce the probability of hot localised points appearance,
Reduce NOXDischarge.
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
Embodiment 1:As Figure 1-4, a kind of gas fuel mixer, including cartridge 1, air are present embodiments provided
Pipe 2, nozzle 3 and mounting seat 13, the air hose 2 are sheathed on the outside of cartridge 1, and the nozzle 3 is arranged on the fuel
Pipe 1 and the front end of the air hose 2, the mounting seat 13 are arranged at cartridge 1 and the air hose 2 tail end, the installation
Seat 13 is used to gas fuel mixer being fixed to gas turbine, and the middle part of the mounting seat 13 is provided with fuel inlet 14, institute
State fuel inlet 14 to connect with the cartridge 1, the tail end of the air hose 2 is circumferentially uniformly provided with four air intlets 15.
The nozzle 3 is provided with ten the first hybrid channels 4 and the second hybrid channel 5, first hybrid channel 4 and
The front end of two hybrid channels 5 is used to spray mixed gas, and tail end is used for air inlet;First hybrid channel 4 is positioned at described
The outer radial periphery of nozzle 3, second hybrid channel 5 are located at the radially inner side of the first hybrid channel 4, and first mixing is logical
Road 4 is equal with the quantity of second hybrid channel 5 and is uniformly interspersed.Mix first hybrid channel 4 and described second
Between the conjunction passage 5 and inner side of second hybrid channel 5 is provided with several equally distributed Cooling Holes 6;First mixing is logical
Cooling Holes 6 between road 4 and second hybrid channel 5 are in three arranged in concentric circles, the Cooling Holes of the inner side of the second hybrid channel 5
6 be also in three arranged in concentric circles, and the Cooling Holes 6 connect with the air hose 2.Cold air enters combustion chamber through Cooling Holes 6, makees
Cooling gas when being burnt for mixed gas, the temperature of the outlet of nozzle 3 can be effectively reduced, prevents nozzle 3 from flame stabilization occur
And the situation of tempering.
The cartridge 1 is circumferentially with some first fuel mix apertures 7, and the side wall of first hybrid channel 4 is provided with
Several the first air mix apertures 8, the first fuel mix aperture 7 and the radially aligned of the first air mix aperture 8, the combustion
Expects pipe 1 is provided with the first mixing tube 9, and described one end of first mixing tube 9 connects the first fuel mix aperture 7, other end extension
To the end of the first air mix aperture 8, and the external diameter of first mixing tube 9 is less than the first air mix aperture 8
Internal diameter.
The cartridge 1 is circumferential and is provided with some second fuel mix apertures 10 positioned at the front portion of the first fuel mix aperture 7,
The side wall of second hybrid channel 5 is provided with several the second air mix apertures 11, the second fuel mix aperture 10 and institute
The radially aligned of the second air mix aperture 11 is stated, the cartridge 1 is provided with the second mixing tube 12, described one end of second mixing tube 12
The second fuel mix aperture 10 is connected, the other end extends to the end of the second air mix aperture 11, and described second is mixed
The external diameter for closing pipe 12 is less than the internal diameter of the second air mix aperture 11;The other end of first mixing tube 9 and described first
The outer wall of hybrid channel 4 is tangent;The other end of second mixing tube 12 and the outer wall of second hybrid channel 5 are tangent.Institute
The closing of the front end of cartridge 1 is stated, fuel is only projected from the first fuel mix aperture 7 and the second fuel mix aperture 10.
The diameter of the first air mix aperture 8 and the internal diameter of first mixing tube 9 are equal, first mixing tube 9
The diameter ratio of internal diameter and the first air mix aperture 8 be 0.2~0.4;The diameter of the second air mix aperture 11 and
The internal diameter of second mixing tube 12 is equal, the internal diameter of second mixing tube 12 and the diameter of the second air mix aperture 11
The ratio between be 0.2~0.4.Each first hybrid channel 4 correspond to described in two the first air mix apertures 8, two
First mixing tube 9 and two the first fuel mix apertures 7, and the internal diameter sum of two first mixing tubes 9 and described the
The sectional area ratio of one hybrid channel 4 is 0.1~0.2;Each second hybrid channel 5 correspond to second air
11, second mixing tubes 12 of mix aperture and the second fuel mix aperture 10, and second mixing tube 12
Internal diameter and the sectional area ratio of second hybrid channel 5 are 0.1~0.2.The area sum of the Cooling Holes 6 is mixed with described first
The ratio for closing the sectional area sum of passage 4 and second hybrid channel 5 is 0.4~0.6.
It is appreciated that:The air is that the present embodiment illustrates operation principle for convenience, and a kind of used gas helps
Agent is fired, this should not be construed as the limitation to structure of the present invention.First hybrid channel 4 and the number of second hybrid channel 5
Amount is not limited to ten, it is every being capable of equally distributed any amount;The quantity of the air intlet 15 is also not limited to
Four, as long as air intlet 15 disclosure satisfy that requirement of the nozzle 3 to air inflow.
The present embodiment is installed on gas turbine, and nozzle 3 is located in combustion chamber.The gas fuel mixer of the present embodiment
The gaseous fuel that first mixing tube 9 and the second mixing tube 12 eject can form injection to the partial air in air hose 2, enter
Before entering the first hybrid channel 4 and the second hybrid channel 5, fuel with partial air with regard to having carried out mixed once, at the same time,
In the first hybrid channel 4 and the second hybrid channel 5, fuel Radial Flow, axial flow of air, the two is the shape of lateral cross
The mixing journey of the secondary mixing in the form of minute yardstick cross jet of formula, fuel and air, this is mixed intensified twice fuel and air
Degree, shortens fuel and incorporation time of the air in the first hybrid channel 4 and the second hybrid channel 5;Uniform mixed gas
Coordinate the cold air entered from Cooling Holes 6, can effectively reduce the temperature of the outlet of nozzle 3, reduce the general of hot localised points appearance
Rate and pollutant NOXDischarge, and improve the stability of burning, reduce the damage of blender.The present embodiment gaseous fuel
The adaptability of blender is stronger, the multiple gases fuel such as natural gas, synthesis gas, pure hydrogen is can adapt to, in gas turbine field
With important application value.
Apply specific case in this specification to be set forth the principle and embodiment of the present invention, above example
Explanation be only intended to help understand the present invention method and its core concept;Meanwhile for those of ordinary skill in the art,
According to the thought of the present invention, in specific embodiments and applications there will be changes.In summary, in this specification
Appearance should not be construed as limiting the invention.
Claims (8)
- A kind of 1. gas fuel mixer, it is characterised in that:Including cartridge, air hose and nozzle, the air hose is sheathed on On the outside of the cartridge, the nozzle is arranged on the cartridge and the air hose front end;The nozzle is provided with several first hybrid channels and the second hybrid channel, first hybrid channel and the second mixing The front end of passage is used to spray mixed gas, and tail end is used for air inlet;First hybrid channel is located at the footpath of the nozzle To periphery, second hybrid channel is located at first hybrid channel radially inner side;First hybrid channel and described Several Cooling Holes are provided with the inside of between two hybrid channels and second hybrid channel;The Cooling Holes connect with the air hose It is logical;The cartridge front end closing, the cartridge are circumferentially with some first fuel mix apertures, first hybrid channel Side wall be provided with several the first air mix apertures, the first fuel mix aperture and the first air mix aperture are radially right Together, the cartridge is provided with the first mixing tube, and described first mixing tube one end connects the first fuel mix aperture, the other end The end of the first air mix aperture is extended to, and the external diameter of first mixing tube is less than the first air mix aperture Internal diameter;The cartridge is circumferential and is provided with some second fuel mix apertures positioned at the first fuel mix aperture is anterior, and described second The side wall of hybrid channel is provided with several the second air mix apertures, the second fuel mix aperture and second air mixing Hole radially aligned, the cartridge are provided with the second mixing tube, and described second mixing tube one end connects the second fuel mixing Hole, the other end extends to the end of the second air mix aperture, and the external diameter of second mixing tube is less than the described second sky The internal diameter of gas mix aperture.
- 2. gas fuel mixer according to claim 1, it is characterised in that:The other end of first mixing tube and institute The outer wall for stating the first hybrid channel is tangent;The other end of second mixing tube and the outer wall of second hybrid channel are tangent.
- 3. gas fuel mixer according to claim 1 or 2, it is characterised in that:The internal diameter of first mixing tube with The diameter ratio of the first air mix aperture is 0.2~0.4;The internal diameter of second mixing tube mixes with second air The diameter ratio in hole is 0.2~0.4.
- 4. gas fuel mixer according to claim 1 or 2, it is characterised in that:Each first hybrid channel is equal It correspond to two the first air mix apertures, two first mixing tubes and two the first fuel mix apertures, and two The internal diameter sum of individual first mixing tube is 0.1~0.2 with the sectional area ratio of first hybrid channel;Each described second Hybrid channel correspond to the second air mix aperture, second mixing tube and second fuel and mix Hole is closed, and the internal diameter of second mixing tube and the sectional area ratio of second hybrid channel are 0.1~0.2.
- 5. gas fuel mixer according to claim 1, it is characterised in that:The area sum of the Cooling Holes with it is described The ratio of the sectional area sum of first hybrid channel and second hybrid channel is 0.4~0.6.
- 6. gas fuel mixer according to claim 1, it is characterised in that:First hybrid channel and described second The quantity of hybrid channel is equal and is uniformly interspersed.
- 7. gas fuel mixer according to claim 1, it is characterised in that:First hybrid channel and described second The quantity of hybrid channel is 10.
- 8. gas fuel mixer according to claim 1, it is characterised in that:Also include being arranged at the cartridge and institute The mounting seat of air hose tail end is stated, the middle part of the mounting seat is provided with fuel inlet, and the fuel inlet connects with the cartridge Logical, the tail end of the air hose is circumferentially with several air intlets.
Priority Applications (1)
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CN201611252505.2A CN106523156B (en) | 2016-12-30 | 2016-12-30 | A kind of gas fuel mixer |
Applications Claiming Priority (1)
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CN201611252505.2A CN106523156B (en) | 2016-12-30 | 2016-12-30 | A kind of gas fuel mixer |
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CN106523156A CN106523156A (en) | 2017-03-22 |
CN106523156B true CN106523156B (en) | 2017-12-01 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111500966A (en) * | 2020-06-16 | 2020-08-07 | 江苏科环新材料有限公司 | Flame spray gun mixer |
CN115451433B (en) * | 2022-09-22 | 2024-04-02 | 中国联合重型燃气轮机技术有限公司 | Fuel nozzle premixing system for combustion chamber of gas turbine |
Citations (5)
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CN1095463A (en) * | 1993-03-18 | 1994-11-23 | 株式会社日立制作所 | The apparatus and method of gaseous fuel and air mixed combustion |
CN1704574A (en) * | 2004-06-03 | 2005-12-07 | 通用电气公司 | Premixing burner with impingement cooled centerbody and method of cooling centerbody |
CN101725984A (en) * | 2008-10-23 | 2010-06-09 | 通用电气公司 | Flame holding tolerant fuel and air premixer for a gas turbine combustor |
CN101865470A (en) * | 2009-04-16 | 2010-10-20 | 通用电气公司 | The combustion gas turbine premixer of cooling in having |
DE102015122924A1 (en) * | 2014-12-30 | 2016-06-30 | General Electric Company | Pilot nozzle in a gas turbine combustor |
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2016
- 2016-12-30 CN CN201611252505.2A patent/CN106523156B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1095463A (en) * | 1993-03-18 | 1994-11-23 | 株式会社日立制作所 | The apparatus and method of gaseous fuel and air mixed combustion |
CN1704574A (en) * | 2004-06-03 | 2005-12-07 | 通用电气公司 | Premixing burner with impingement cooled centerbody and method of cooling centerbody |
CN101725984A (en) * | 2008-10-23 | 2010-06-09 | 通用电气公司 | Flame holding tolerant fuel and air premixer for a gas turbine combustor |
CN101865470A (en) * | 2009-04-16 | 2010-10-20 | 通用电气公司 | The combustion gas turbine premixer of cooling in having |
DE102015122924A1 (en) * | 2014-12-30 | 2016-06-30 | General Electric Company | Pilot nozzle in a gas turbine combustor |
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