CN108061309A - Gas turbine and its burner - Google Patents
Gas turbine and its burner Download PDFInfo
- Publication number
- CN108061309A CN108061309A CN201711279248.6A CN201711279248A CN108061309A CN 108061309 A CN108061309 A CN 108061309A CN 201711279248 A CN201711279248 A CN 201711279248A CN 108061309 A CN108061309 A CN 108061309A
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- China
- Prior art keywords
- fuel
- burner
- gas turbine
- playpipe
- annular
- 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
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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
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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)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
Abstract
The invention discloses a kind of gas turbine and its burners, the burner includes burner inner liner, guide bushing, floating lantern ring and rear flame fuel playpipe, the guide bushing is set on the burner inner liner, and circular passage is formed between the guide bushing and the burner inner liner；The floating lantern ring is movably arranged at compared with the burner inner liner on the burner inner liner；The outer end of flame fuel playpipe is fixed in the guide bushing after described, and the inner end of the rear flame fuel playpipe extends to the burner inner liner through the floating lantern ring, and the floating lantern ring coordinates on flame fuel playpipe in the rear.The gas turbine and its burner of the present invention, by setting floating lantern ring between rear flame fuel pipe and burner inner liner, avoiding burner inner liner temperature height causes the unbalanced problem of thermal expansion, reduces the generation of thermal stress, and simple in structure, reduces cost.
Description
Technical field
The present invention relates to gas turbine technology field, burner more particularly to a kind of gas turbine and with the combustion
The gas turbine of burner.
Background technology
In the thermodynamic cycle of gas turbine, the indoor fuel gas temperature that burns is higher, is more conducive to the raising of efficiency and power.
But excessive air easily forms oxynitrides NO at high temperatureX, and in order to reduce the thermal NOXDischarge, then need
Reduce indoor maximum temperature of burning.It on the one hand needs to improve temperature as a result, to meet the needs of power, on the other hand then needs to drop
Low maximum temperature is to reach emission request.
In correlation technique, using fractional combustion in the combustion chamber of gas turbine, for a kind of classification combustion in gas turbine
It burns for " late lean injection ", in the fractional combustion of this type, late lean injection device is located at the downstream of main burning nozzle, at this
Downstream position increases fuel, can not only increase power, but also is avoided that burning indoor temperature is excessively high.However, late lean injection device with
Due to thermal dilation difference between burner inner liner, high thermal stress is easily generated, brings excessively high heat structure load；Current delay
Poor emitter construction is complicated, adds cost, the risk that also there is leakage.
The content of the invention
It is contemplated that it solves at least some of the technical problems in related technologies.
For this purpose, one aspect of the present invention proposes a kind of burner of gas turbine, which avoids excessively high heat
The problem of structural loads, and it is simple in structure, reduce cost.
The invention also provides a kind of gas turbines with said burner.
The burner of the gas turbine of embodiment according to the first aspect of the invention includes burner inner liner；Guide bushing, institute
It states guide bushing to be set on the burner inner liner, circular passage is formed between the guide bushing and the burner inner liner；Floating bushing
Ring, the floating lantern ring is moved compared with the burner inner liner to be located on the burner inner liner；Flame fuel playpipe afterwards, after described
The outer end of flame fuel playpipe is fixed in the guide bushing, and the inner end of the rear flame fuel playpipe is floated through described
Dynamic lantern ring extends to the burner inner liner, and the floating lantern ring coordinates on flame fuel playpipe in the rear.
The burner of gas turbine according to the present invention is equipped with floating bushing between rear flame fuel playpipe and burner inner liner
Ring, avoiding burner inner liner temperature height causes the unbalanced problem of thermal expansion, reduces the generation of thermal stress, and simple in structure,
Reduce cost.
In some embodiments, the burner inner liner is equipped with mounting hole, and bearing, the floating are equipped in the mounting hole
Lantern ring movably coordinates compared with the bearing on the bearing.
In some embodiments, the bearing includes pedestal and annular cover plate, and the pedestal includes cylinder, from the cylinder
Outer end periphery along the flange to extend radially outwardly of the cylinder and from the outer peripheral edge of the flange along the cylinder axially outward
The cofferdam of extension, the outer peripheral edge of the annular cover plate are connected with the cofferdam so as to the annular cover plate, the cofferdam and described
Flange forms annular groove, and a part for the floating lantern ring movably coordinates in the annular groove.
In some embodiments, the floating lantern ring includes cylindrical portion and from the inner end of the cylindrical portion along the cylindrical portion
The peripheral part to extend radially outwardly, the peripheral part movably coordinate in the annular groove, and the cylindrical portion is sleeved on described
Afterwards on flame fuel playpipe and with it is described after flame fuel playpipe tight fit.
In some embodiments, the cylindrical portion includes direct tube section and the loudspeaker section being connected with the outer end of the direct tube section.
In some embodiments, the wall of the cylinder is equipped with the cooling hole connected with the circular passage.
In some embodiments, the outer end of the rear flame fuel playpipe has flange, the rear flame fuel injection
Pipe is mounted on by the flange in the guide bushing.
In some embodiments, the guide bushing is equipped with mounting hole, and outer shroud is equipped in the mounting hole, described outer
Ring has the annular outer groove being radially outward open along the outer shroud and the annular trough being radially-inwardly open along the outer shroud, described
Annular outer groove is connected with the annular trough by intercommunicating pore；Inner ring is installed, the inner ring has interior along this in the outer shroud
The inner ring annular groove being radially outward open of ring, the inner ring annular groove, which docks to form annular fuel with the annular trough, to be led to
Road, the flange are mounted on the outer shroud, and the rear flame fuel playpipe passes through the inner ring, the annular fuel passage
It is connected by the fuel through-hole in the inner ring with the teasehole on the rear flame fuel playpipe.
In some embodiments, fuel is installed at the teasehole on the inner wall of the rear flame fuel playpipe
Pipe, the wall of the cartridge is equipped with for the fuel squit hole of the spray fuel into the rear flame fuel playpipe, described
Cartridge is connected by the fuel through-hole on the teasehole and the inner ring with the annular fuel passage.
In some embodiments, the cartridge is multiple and circumferentially uniformly dividing along the rear flame fuel playpipe
Cloth.
In some embodiments, the fuel squit hole on each cartridge is multiple and along the axial direction of the cartridge
It is spaced apart.
In some embodiments, the annular outer groove and the fuel passage on the inside of the guide bushing.
In some embodiments, the fuel channel is formed in the inner wall of the guide bushing.
In some embodiments, fuel cover board is equipped in the guide bushing, the fuel channel is formed in the water conservancy diversion
Between the inner wall of bushing and the fuel cover board.
In some embodiments, it is equipped with cyclone in the rear flame fuel playpipe.
In some embodiments, the flame fuel playpipe afterwards is between multiple and along the guide bushing circumferential direction is uniform
Every arrangement.
The gas turbine of embodiment according to the second aspect of the invention includes the burner of above-described embodiment.
Description of the drawings
Fig. 1 is the overall structure diagram of the burner of gas turbine according to an embodiment of the invention.
Fig. 2 is the section view at the rear flame fuel playpipe of the burner of gas turbine according to an embodiment of the invention
Figure.
Fig. 3 is the section at the rear flame fuel playpipe of the burner of gas turbine according to an embodiment of the invention
Figure.
Reference numeral：
Burner inner liner 1, guide bushing 2, floating lantern ring 3, cylindrical portion 31, direct tube section 311, loudspeaker section 312, peripheral part 32, after
Flame fuel playpipe 4, circular passage 5, bearing 6, pedestal 61, cylinder 611, flange 612, cofferdam 613, annular cover plate 62, ring
Shape slot 7, cooling hole 8, flange 9, outer shroud 10, annular outer groove 101, annular trough 102, intercommunicating pore 103, inner ring 11, inner ring annular
Slot 111, annular fuel passage 12, fuel through-hole 13, cartridge 14, fuel squit hole 15, fuel channel 16, fuel cover board 17,
Cyclone 18.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
As shown in Figs. 1-3, the burner of the gas turbine of embodiment includes burner inner liner 1, water conservancy diversion according to an aspect of the present invention
Bushing 2, floating lantern ring 3 and rear flame fuel playpipe 4.
The front end (left end shown in Fig. 1) of burner inner liner 1 is equipped with primary fuel nozzles, to spray combustion into burner inner liner 1
Material.
Guide bushing 2 is set on burner inner liner 1, and circular passage 5 is formed between guide bushing 2 and burner inner liner 1.Through compressor
The pressure-air of compression enters the front end of burner inner liner 1 through the circular passage 5, and the fuel sprayed with primary fuel nozzles is in flame
1 mixing of cylinder, burning.
Floating lantern ring 3 is movably arranged at compared with burner inner liner 1 on burner inner liner 1.Herein, " removable " refers to floating lantern ring
3 are located on burner inner liner 1, but burner inner liner 1 does not limit floating bushing ring 3 and moves, which can mainly include floating lantern ring 3 along its
The global displacement of radial direction or the contraction or expansion due to generation of expanding with heat and contract with cold, also include certainly along floating lantern ring 3 it is axial by
In the contraction or expansion of generation of expanding with heat and contract with cold.
The outer end of flame fuel playpipe 4 is fixed in guide bushing 2 afterwards, and the inner end of rear flame fuel playpipe 4 passes through
Floating lantern ring 3 extends to burner inner liner 1, and floating lantern ring 3 coordinates on rear flame fuel playpipe 4.Specifically, rear flame fuel
The opening of the inner end of playpipe 4 is concordant with the internal face of burner inner liner 1.Herein, " outer end " refers to the one of neighbouring guide bushing 2
End, i.e., upper end shown in Fig. 2；" inner end " refers to one end of neighbouring burner inner liner 1, i.e., lower end shown in Fig. 2.
It is understood that rear flame fuel playpipe 4 receives fuel and air, fuel and air are sprayed in rear flame fuel
It penetrates in pipe 4 and is mixed, the mixture of fuel and air is sprayed by rear flame fuel playpipe 4 to burner inner liner 1.
Floating lantern ring 3 is set on rear flame fuel playpipe 4, and rear flame fuel playpipe 4 and burner inner liner 1 are at high temperature
Generate thermal expansion, floating lantern ring 3 can with the expansion or shrinkage of rear flame fuel playpipe 4 and correspondingly expansion or shrinkage be (i.e.
Generate displacement), due between rear flame fuel playpipe 4 and burner inner liner 1 there are thermal dilation difference, by being sprayed in rear flame fuel
It penetrates and floating lantern ring 3 is set between pipe 4 and burner inner liner 1, there is heat after can compensating between flame fuel playpipe 4 and burner inner liner 1
Differences in expansion avoids the unbalanced problem of thermal expansion, reduces the generation of thermal stress.
Afterwards flame fuel playpipe 4 be suitable for fuel at the downstream of primary fuel nozzles (right side shown in FIG. 1) and
The mixture of air is ejected into working fluid.Flame fuel playpipe 4 is more specifically for the mixing by fuel and air afterwards
Object is ejected into the rear end (right end shown in FIG. 1) of the primary combustion chamber of the restriction of burner inner liner 1.Flame fuel playpipe 4 is first afterwards
The mixing of fuel and air, burning are realized in grade combustion zone downstream, to improve NOXDischarge.
The burner of gas turbine according to the present invention is equipped with floating bushing between rear flame fuel playpipe and burner inner liner
Ring, avoiding burner inner liner temperature height causes the unbalanced problem of thermal expansion, reduces the generation of thermal stress, and simple in structure,
Reduce cost.
In some embodiments, burner inner liner 1 is equipped with mounting hole, and bearing 6 is equipped in mounting hole, and floating lantern ring 3 is opposite
It is movably arranged in bearing 6 on bearing 6.In other words, bearing 6 on burner inner liner 1 is installed, floating lantern ring is installed on bearing 6
3, and floating lantern ring 3 on bearing 6 can the integrally radial dilatation along floating lantern ring 3 or contraction, as shown in Figure 1, 2, floating bushing
Ring 3 can be expanded or shunk in the lateral direction on bearing 6.
In some embodiments, bearing 6 includes pedestal 61 and annular cover plate 62, and pedestal 61 includes cylinder 611, flange 612
With cofferdam 613, wherein, flange 612 is from the outer end of cylinder 611 (upper end of cylinder 611 shown in Fig. 3) periphery along the cylinder 611
Extend radially outwardly, the extending axially outward from the outer peripheral edge of flange 612 along cylinder 611 of cofferdam 613.In other words, cofferdam 613
It is connected by flange 612 with cylinder 611, and the internal diameter in cofferdam 613 is more than the internal diameter of cylinder 611.
The outer peripheral edge of annular cover plate 62 is connected with cofferdam 613 so that annular cover plate 62, cofferdam 613 and flange 612 form ring
Shape slot 7.Such as shown in Fig. 3, annular cover plate 62 is connected with the inner wall in cofferdam 613 and positioned at the upper end of flange 612, annular cover plate
Gap is left between 62 and flange 612, so that annular cover plate 62, cofferdam 613 and flange 612 form annular groove 7.
A part for floating lantern ring 3 movably coordinates in the annular groove 7.In other words, a part for floating lantern ring 3 is matched somebody with somebody
Close in the annular groove 7, the part of floating lantern ring 3 can be in the annular groove 7 it is radially whole be displaced outwardly or it is whole to
Interior movement.
In some embodiments, floating lantern ring 3 includes cylindrical portion 31 and peripheral part 32, and peripheral part 32 is out of cylindrical portion 31
Hold (lower end shown in Fig. 2) extending radially outwardly along the cylindrical portion 31.In other words, as shown in Fig. 2, floating lantern ring 3 is including upper
The cylindrical portion 31 in portion and the peripheral part 32 of lower part, the upper end of peripheral part 32 are connected with cylindrical portion 31, and peripheral part 32 is along cylindrical portion 31
Extend radially outwardly.
The peripheral part 32 of floating lantern ring 3 movably coordinates in annular groove 7.In other words, as shown in figure 3, peripheral part 32
It expands or shrinks in the annular groove 7 and along the upper surface of flange 612.
Cylindrical portion 31 be sleeved on rear flame fuel playpipe 4 and with rear 4 tight fit of flame fuel playpipe.
In some embodiments, cylindrical portion 31 includes direct tube section 311 and with the outer end of direct tube section 311 (on shown in Fig. 3
End) connected loudspeaker section 312.In other words, as shown in Fig. 2, cylindrical portion 31 includes the direct tube section 311 of lower part and the loudspeaker section on top
312, the upper end of direct tube section 311 is connected with loudspeaker section 312, and the radial dimension of loudspeaker section 312 gradually increases from top to bottom.
Flame fuel playpipe 4 sequentially passes through the loudspeaker section 312 of cylindrical portion 31, direct tube section 311 and stretches into pedestal 61 afterwards
In cylinder 611, the direct tube section 311 of cylindrical portion 31 and rear 4 tight fit of flame fuel playpipe.Specifically, as shown in Fig. 2, cylinder
The internal face flush of 611 lower face, the lower face of rear flame fuel playpipe 4 and burner inner liner 1.
In some embodiments, the wall of cylinder 611 is equipped with the cooling hole 8 that is connected with circular passage 5, and cooling air can be with
Entered by cooling hole 8 in pedestal 61, with flame fuel playpipe 4 after cooling and featheriness.
In some embodiments, the outer end (upper end shown in Fig. 2) of rear flame fuel playpipe 4 has flange 9, rear flame
Fuel injection pipe 4 is mounted on by flange 9 in guide bushing 2.Specifically, flange 9 is mounted on water conservancy diversion by fasteners such as bolts
On bushing 2.
In some embodiments, guide bushing 2 is equipped with mounting hole, is equipped with outer shroud 10 in mounting hole, outer shroud 10 has
Annular outer groove 101, annular trough 102 and intercommunicating pore 103.
Radially outward opening of the annular outer groove 101 along the outer shroud 10, annular trough 102 are radially-inwardly opened along the outer shroud 10
Mouthful, intercommunicating pore 103 is used to connect annular outer groove 101 and annular trough 102.Specifically, as shown in figure 3, outer shroud 10 is included on flat
Cover board, connecting plate and lower cover and section vertically are in substantially I-shaped, and upper cover plate is parallel with lower cover and arranged for interval, even
Fishplate bar is axially extending along outer shroud 10, and connecting plate is equipped with intercommunicating pore 103, and the middle position of upper cover plate 10 is connected by connecting plate
Lower cover is connect, lower cover includes the outside portion and inside portion that are radially sequentially arranged from outside to inside along outer shroud 10, the radial direction of outside portion
Size is shorter than the radial dimension of inside portion.
Inner ring 11 is installed, inner ring 11 has an inner ring annular groove 111, and inner ring annular groove 111 is along the inner ring 11 in outer shroud 10
Radially outward opening.
The inner ring annular groove 111 of inner ring 11 docks to form annular fuel passage 12 with the annular trough 102 of outer shroud 10.
The flange 9 of 4 outer end of flame fuel playpipe is mounted on outer shroud 10 afterwards, and rear flame fuel playpipe 4 passes through inner ring
11, annular fuel passage 12 is connected by the fuel through-hole 13 in inner ring 11 with the teasehole on rear flame fuel playpipe 4, with
Just the fuel in annular fuel passage 12 passes sequentially through fuel through-hole 13 and teasehole enters in rear flame fuel playpipe 4.It changes
Yan Zhi, as shown in Figure 2,3, flange 9 are fastened by bolts on outer shroud 10, and outer shroud 10 is fixed in guide bushing 2, so as to indirectly
Flange 9 is mounted in guide bushing 2 by ground.
In some embodiments, cartridge 14, fuel are installed at teasehole on the inner wall of rear flame fuel playpipe 4
The wall of pipe 14 is equipped with fuel squit hole 15, and the fuel squit hole 15 is for spray fuel in flame fuel playpipe 4 backward, combustion
Expects pipe 14 is connected by the fuel through-hole 13 on teasehole and inner ring 11 with annular fuel passage 12.It is it is understood that annular
Fuel in fuel channel 12 passes sequentially through fuel through-hole 13 and teasehole enters in cartridge 14, and cartridge 14 is sprayed by fuel
Portal and 15 inject fuel into rear flame fuel playpipe 4.
In some embodiments, cartridge 14 has multiple, circumferential direction of multiple cartridges 14 along rear flame fuel playpipe 4
It is uniformly distributed.
In some optional embodiments, the fuel squit hole 15 on each cartridge 14 is multiple, and multiple fuel spray
Hole 15 is distributed along the axially spaced-apart of cartridge 14.
Further, cartridge 14 prolongs in rear flame fuel playpipe 4 along the radial direction of rear flame fuel playpipe 4
It stretches, then multiple fuel squit holes 15 on each cartridge 14 are interior along rear flame fuel playpipe 4 in rear flame fuel playpipe 4
Evenly spaced radial distribution.By being radially uniformly distributed fuel squit hole 15, Ke Yijing in rear flame fuel playpipe 4
The really control diametrical distribution of fuel, is sufficiently mixed fuel and air.
In some embodiments, 2 inside of guide bushing is equipped with fuel channel 16, and fuel channel 16 connects with annular outer groove 101
It is logical, that is, be connected with annular fuel passage 12.As shown in Figure 1,3, fuel is by the fuel channel 16 on the inside of guide bushing 2
Left end receives, and is passed through by the right end of fuel channel 16 in annular fuel passage 12, so as to flame fuel playpipe 4 backward in time
Interior supply fuel.
In some optional embodiments, fuel channel 16 is formed in the inner wall of guide bushing 2.In other embodiments
In, fuel cover board 17 is equipped in guide bushing 2, fuel channel 16 is formed between the inner wall of guide bushing 2 and fuel cover board 17.
In some embodiments, cyclone 18 is equipped in rear flame fuel playpipe 4.Flame after cyclone 18 can enhance
The mixing effect of fuel and air in fuel injection pipe 4, to stablize flame.Specifically, as shown in Figure 2,3, rear flame fuel
Cyclone 18 in playpipe 4 is set adjacent to the lower face of rear flame fuel playpipe 4.
In some embodiments, rear flame fuel playpipe 4 is multiple that multiple rear flame fuel playpipes 4 are served as a contrast along water conservancy diversion
The circumferential uniform intervals arrangement of set 2.The burner of the gas turbine of the embodiment of the present invention, by under primary fuel nozzles
The rear flame fuel playpipe 4 that position sets multiple circumferential uniform intervals along guide bushing 2 to arrange is swum, can further be improved
NOXDischarge improves overall performance.
Below with reference to the accompanying drawings 1-3 describes the burner of the gas turbine of specific embodiment according to the present invention.
As shown in Figs. 1-3, the burner of gas turbine according to embodiments of the present invention include burner inner liner 1, guide bushing 2,
Floating lantern ring 3, rear flame fuel playpipe 4, bearing 6, outer shroud 10, inner ring 11, cartridge 14, fuel cover board 17 and cyclone
18。
Guide bushing 2 is set on burner inner liner 1 to form circular passage 5, water conservancy diversion between guide bushing 2 and burner inner liner 1
Fuel cover board 17 is equipped in bushing 2, fuel channel 16 is formed between fuel cover board 17 and guide bushing 2.
Guide bushing 2 is equipped with mounting hole, and outer shroud 10, outer peripheral edge and the guide bushing 2 of outer shroud 10 are equipped in mounting hole
Welding.
Outer shroud 10 has annular outer groove 101, annular trough 102 and intercommunicating pore 103.Annular outer groove 101 is along the outer shroud 10
It is radially outward open, radially-inwardly opening of the annular trough 102 along the outer shroud 10, intercommunicating pore 103 is used to connect annular outer groove 101
With annular trough 102.
Inner ring 11 is installed, inner ring 11 has an inner ring annular groove 111, and inner ring annular groove 111 is along the inner ring 11 in outer shroud 10
Radially outward opening, also there is in inner ring 11 fuel through-hole 13.
The inner ring annular groove 111 of inner ring 11 docks to form annular fuel passage 12, ring with the annular trough 102 of outer shroud 10
Shape fuel channel 12 is connected with fuel channel 16.
As shown in Figure 2,3, floating lantern ring 3 is mounted on by bearing 6 on burner inner liner 1.Bearing 6 is mounted on burner inner liner 6
In mounting hole, floating lantern ring 3 is mounted on bearing 6, and is displaced outwardly compared with bearing 6 in the radially whole of floating lantern ring 3
Or entirety moves inward.
Bearing 6 includes pedestal 61 and annular cover plate 62, and pedestal 61 includes cylinder 611, flange 612 and cofferdam 613, flange
612 from upper end periphery the extending radially outwardly along the cylinder 611 of cylinder 611, and cofferdam 613 is from the outer peripheral edge of flange 612 along cylinder
Body 611 extends axially outward.
Annular cover plate 62 is connected with the inner wall in cofferdam 613 and positioned at the upper end of flange 612, annular cover plate 62 and flange 612
Between leave gap, so as to annular cover plate 62, cofferdam 613 and flange 612 formed annular groove 7.
Floating lantern ring 3 includes the cylindrical portion 31 on top and the peripheral part 32 of lower part, upper end and the cylindrical portion 31 of peripheral part 32
It is connected, peripheral part 32 extends radially outwardly along cylindrical portion 31.The peripheral part 32 of floating lantern ring 3 coordinates in annular groove 7 and edge
The upper surface of flange 612 is displaced outwardly in the radially entirety of floating lantern ring 3 or entirety moves inward.
Cylindrical portion 31 includes the direct tube section 311 of lower part and the loudspeaker section 312 on top, upper end and the loudspeaker section of direct tube section 311
312 connections, the radial dimension of loudspeaker section 312 gradually increase from top to bottom.
The upper end of flame fuel playpipe 4 has flange 9 afterwards, and flange 9 is located at outer shroud 10 the upper surface of, and flange 9 passes through spiral shell
Bolt is fastened on outer shroud 10, and rear flame fuel playpipe 4 is passed through out of inner ring 11, and the lower end of rear flame fuel playpipe 4 according to
It is secondary to be stretched into through the cylindrical portion 31 of floating lantern ring 3 and peripheral part 32 in the cylinder 611 of pedestal 61, the cylindrical portion 31 of floating lantern ring 3
Direct tube section 311 and rear 4 tight fit of flame fuel playpipe, lower face, the lower face of bearing 6 of rear flame fuel playpipe 4
With the internal face flush of burner inner liner 1, the lower end penetrating for passing through rear flame fuel playpipe 4 so as to the mixture of fuel and air
In burner inner liner 1.
Flame fuel playpipe 4 is multiple afterwards, it is multiple after flame fuel playpipes 4 along guide bushings 2 it is circumferential uniformly between
Every arrangement.There is teasehole, on the inner wall of rear flame fuel playpipe 4 at teasehole after each on flame fuel playpipe 4
There are one cartridge 14, the wall of cartridge 14 is equipped with fuel squit hole 15 for installation, by fuel squit hole 15 by fuel injection
To rear flame fuel playpipe 4.Cartridge 14 passes through the fuel through-hole 13 and annular fuel passage on teasehole and inner ring 11
12 connections, so that the fuel of fuel channel 16 is fed to by annular fuel passage 12 in cartridge 14.
Cartridge 14 have it is multiple, multiple cartridges 14 are uniformly distributed along the circumferential direction of rear flame fuel playpipe 4, and fire
Expects pipe 14 is radially extended along rear flame fuel playpipe 4.Fuel squit hole 15 on each cartridge 14 is multiple, multiple combustions
Expect that squit hole 15 is distributed along the axially spaced-apart of cartridge 14, i.e., be distributed along the spaced radial of rear flame fuel playpipe 4.
The position of its neighbouring lower face is equipped with cyclone 18 in flame fuel playpipe 4 afterwards, to further enhance rear flame
The mixing effect of fuel and air in fuel injection pipe 4 stablizes flame.
The wall of cylinder 611 is equipped with the cooling hole 8 connected with circular passage 5, and cooling air can be entered by cooling hole 8
In pedestal 61, with flame fuel playpipe 4 after cooling and featheriness.
The gas turbine of embodiment includes the burner of above-described embodiment according to another aspect of the present invention.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " up time
The orientation or position relationship of the instructions such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be based on orientation shown in the drawings or
Position relationship is for only for ease of the description present invention and simplifies description rather than instruction or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, " multiple " are meant that at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integral；Can be that machinery connects
It connects or is electrically connected or can communicate each other；It can be directly connected, can also be indirectly connected by intermediary, it can be with
It is the interaction relationship of connection inside two elements or two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with "above" or "below" second feature
It is that the first and second features contact directly or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper or be merely representative of
Fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " lower section " and " below " can be
One feature is immediately below second feature or obliquely downward or is merely representative of fisrt feature level height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms is not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It is combined in an appropriate manner in one or more embodiments or example.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the different embodiments described in this specification or example and different embodiments or exemplary feature
It closes and combines.
Although the embodiment of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, those of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changes, replacing and modification.
Claims (17)
1. a kind of burner of gas turbine, which is characterized in that including：
Burner inner liner；
Guide bushing, the guide bushing are set on the burner inner liner, are formed between the guide bushing and the burner inner liner
Circular passage；
Floating lantern ring, the floating lantern ring are movably arranged at compared with the burner inner liner on the burner inner liner；
Flame fuel playpipe afterwards, the outer end of the rear flame fuel playpipe is fixed in the guide bushing, fiery after described
The inner end of flame fuel injection pipe extends to the burner inner liner through the floating lantern ring, and floating lantern ring cooperation is in the rear
On flame fuel playpipe.
2. the burner of gas turbine according to claim 1, which is characterized in that the burner inner liner is equipped with mounting hole,
Bearing is installed, the floating lantern ring movably coordinates compared with the bearing on the bearing in the mounting hole.
3. the burner of gas turbine according to claim 2, which is characterized in that the bearing includes pedestal and ring cover
Plate, the pedestal include cylinder, from the outer end periphery of the cylinder along the flange to extend radially outwardly of the cylinder and from described
The axially outwardly extending cofferdam of the outer peripheral edge of flange along the cylinder,
The outer peripheral edge of the annular cover plate is connected with the cofferdam so that the annular cover plate, the cofferdam and the flange are formed
Annular groove,
A part for the floating lantern ring movably coordinates in the annular groove.
4. the burner of gas turbine according to claim 3, which is characterized in that the floating lantern ring include cylindrical portion and
Movably coordinate in institute from the inner end of the cylindrical portion along the peripheral part to extend radially outwardly of the cylindrical portion, the peripheral part
State in annular groove, cylindrical portion set in the rear on flame fuel playpipe and with it is described after flame fuel playpipe close-fitting
It closes.
5. the burner of gas turbine according to claim 4, which is characterized in that the cylindrical portion include direct tube section and with
The loudspeaker section that the outer end of the direct tube section is connected.
6. the burner of gas turbine according to claim 3, which is characterized in that the wall of the cylinder be equipped with it is described
The cooling hole of circular passage connection.
7. the burner of gas turbine according to claim 1, which is characterized in that flame fuel playpipe is outer after described
End has flange, and the rear flame fuel playpipe is mounted on by the flange in the guide bushing.
8. the burner of gas turbine according to claim 7, which is characterized in that the guide bushing, which is equipped with, fixes
Hole, is equipped with outer shroud in the mounting hole, the outer shroud have along the outer shroud the annular outer groove being radially outward open and along this
The annular trough being radially-inwardly open of outer shroud, the annular outer groove are connected with the annular trough by intercommunicating pore；
Inner ring is installed, the inner ring has the inner ring annular groove being radially outward open along the inner ring, described in the outer shroud
Inner ring annular groove is docked with the annular trough to form annular fuel passage,
The flange is mounted on the outer shroud, and through the inner ring, the annular fuel leads to the rear flame fuel playpipe
Road is connected by the fuel through-hole in the inner ring with the teasehole on the rear flame fuel playpipe.
9. the burner of gas turbine according to claim 8, which is characterized in that flame fuel playpipe is interior after described
Cartridge is installed at the teasehole, the wall of the cartridge is equipped with for flame fuel playpipe after described on wall
The fuel squit hole of interior spray fuel, the cartridge pass through the fuel through-hole on the teasehole and the inner ring and the ring
Shape fuel passage.
10. the burner of gas turbine according to claim 9, which is characterized in that the cartridge is multiple and along institute
The circumferential direction for stating rear flame fuel playpipe is uniformly distributed.
11. the burner of gas turbine according to claim 9, which is characterized in that the fuel on each cartridge
Squit hole is axially spaced-apart distribution multiple and along the cartridge.
12. the burner of gas turbine according to claim 8, which is characterized in that the annular outer groove is described with being located at
Fuel passage on the inside of guide bushing.
13. the burner of gas turbine according to claim 12, which is characterized in that the fuel channel is formed in described
In the inner wall of guide bushing.
14. the burner of gas turbine according to claim 12, which is characterized in that fuel is equipped in the guide bushing
Cover board, the fuel channel are formed between the inner wall of the guide bushing and the fuel cover board.
15. the burner of gas turbine according to claim 1, which is characterized in that after described in flame fuel playpipe
Equipped with cyclone.
16. the burner of the gas turbine according to any one of claim 1-15, which is characterized in that flame combustion after described
Expect playpipe for circumferential uniform intervals arrangement multiple and along the guide bushing.
17. a kind of gas turbine, which is characterized in that including the burner as any one of claim 1-16.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711279248.6A CN108061309B (en) | 2017-12-06 | 2017-12-06 | Gas turbine and combustor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711279248.6A CN108061309B (en) | 2017-12-06 | 2017-12-06 | Gas turbine and combustor thereof |
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| CN108061309A true CN108061309A (en) | 2018-05-22 |
| CN108061309B CN108061309B (en) | 2020-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711279248.6A Active CN108061309B (en) | 2017-12-06 | 2017-12-06 | Gas turbine and combustor thereof |
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| CN109083745A (en) * | 2018-09-26 | 2018-12-25 | 新奥能源动力科技（上海）有限公司 | A kind of igniter mounting device and miniature gas turbine |
| CN113091092A (en) * | 2021-05-13 | 2021-07-09 | 中国联合重型燃气轮机技术有限公司 | Combustion chamber laminate and combustion chamber |
| CN113738777A (en) * | 2021-09-13 | 2021-12-03 | 中国联合重型燃气轮机技术有限公司 | Shaft coupling |
| CN116702519A (en) * | 2023-08-07 | 2023-09-05 | 中国航发四川燃气涡轮研究院 | Flame tube floating tile work load analysis method and device |
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| CN109083745A (en) * | 2018-09-26 | 2018-12-25 | 新奥能源动力科技（上海）有限公司 | A kind of igniter mounting device and miniature gas turbine |
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| CN113738777A (en) * | 2021-09-13 | 2021-12-03 | 中国联合重型燃气轮机技术有限公司 | Shaft coupling |
| CN113738777B (en) * | 2021-09-13 | 2022-11-04 | 中国联合重型燃气轮机技术有限公司 | Shaft coupling |
| CN116702519A (en) * | 2023-08-07 | 2023-09-05 | 中国航发四川燃气涡轮研究院 | Flame tube floating tile work load analysis method and device |
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| CN108061309B (en) | 2020-07-14 |
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