CN209053698U - Ignition electric nozzle component, combustion chamber and the gas turbine of combustion chamber - Google Patents
Ignition electric nozzle component, combustion chamber and the gas turbine of combustion chamber Download PDFInfo
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- CN209053698U CN209053698U CN201821574495.9U CN201821574495U CN209053698U CN 209053698 U CN209053698 U CN 209053698U CN 201821574495 U CN201821574495 U CN 201821574495U CN 209053698 U CN209053698 U CN 209053698U
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Abstract
The utility model relates to ignition electric nozzle component, combustion chamber and the gas turbines of a kind of combustion chamber.Wherein, the ignition electric nozzle component of combustion chamber includes mounting base, for being set to the outer ring burner inner liner of combustion chamber；The mounting base is equipped with the connected pathways for installing ignition electric nozzle；The region that the bottom of the mounting base is located at burning indoor air flow upstream is equipped with several first through hole, region positioned at burning indoor air flow downstream is equipped with several second through-holes, and the first through hole and second through-hole are used to lead to the gas outside the outer ring burner inner liner in the outer ring burner inner liner.The utility model can be improved the cooling effect of ignition electric nozzle installation region.
Description
Technical field
The utility model relates to ignition electric nozzle component, combustion chamber and the combustions of engine art more particularly to a kind of combustion chamber
Gas-turbine.
Background technique
Gas turbine generallys use toroidal combustion chamber at present, and high pressure gas enters combustion chamber from compressor outflow, and is firing
It burns and mixes combining combustion generation high-temperature fuel gas promotion turbine acting in room with fuel.High pressure gas is discharged into combustion chamber from compressor
After be divided into three strands: one enter combustion chamber outer ring channel to cool down outer ring burner inner liner, ignition electric nozzle component；One enters combustion chamber
Inner ring channel is to cool down inner ring burner inner liner；In addition one enters combustion reaction chamber from head of combustion chamber and mixes with fuel, is lighting a fire
Violent chemical reaction occurs for mixed gas and burns to generate high-temperature fuel gas under the ignition action of sparking plug.
When gas turbine works, ignition electric nozzle is in severe hot environment, and due to the presence of ignition electric nozzle, is made
The continuous coo1ing air film of burner inner liner near wall generates interruption, is degrading the cooling condition of burner inner liner wall surface near ignition electric nozzle.
In order to improve the cooling condition of burner inner liner wall area near ignition electric nozzle and ignition electric nozzle, need in the region using high
The cooling technology of effect to reduce the regional temperature, while improving ignition electric nozzle and combustion chamber service life.
Furthermore between burner inner liner and casing it is hot it is lower will appear swell increment it is different caused by hot coordination problem.For
Double side wall burner inner liner, ignition electric nozzle are needed across casing, burner inner liner first layer wall surface, burner inner liner second layer wall surface, and heat is coordinated
Problem is especially serious.It such as cannot appropriately handle, it is possible to lead to burner inner liner and ignition electric nozzle clamping stagnation, damage ignition electric nozzle or fire
Flame cylinder.
Utility model content
At least one purpose of the utility model is the ignition electric nozzle component for proposing a kind of combustion chamber, combustion chamber and combustion gas wheel
Machine, for solving the problems, such as the cooling of ignition electric nozzle near zone to a certain extent.
Some embodiments of the utility model provides a kind of ignition electric nozzle component of combustion chamber comprising mounting base is used
In the outer ring burner inner liner for being set to combustion chamber；The mounting base is equipped with the connected pathways for installing ignition electric nozzle；The mounting base
Bottom be located at burning indoor air flow upstream region be equipped with several first through hole, positioned at burning indoor air flow downstream region it is equal
Equipped with several second through-holes, the first through hole and second through-hole are used to draw the gas outside the outer ring burner inner liner
In to the outer ring burner inner liner.
Optionally, the top of the mounting base is equipped with cavity；Ignition electric nozzle component further includes floating bushing, the floating bushing packet
Include first position and second position；The first position is set in the cavity；The second position is set to outside the cavity；Institute
Cavity is stated for limiting the floating bushing along the region that it is axially and/or radially moved.
Optionally, the mounting base includes: pedestal, and the first through hole and second through-hole are set on the bottom of the pedestal
The top in portion, the pedestal is equipped with groove；And pressing plate, between the top of the pedestal, with the groove described in formation
Cavity.
Optionally, outwardly extending first extension is circumferentially at the top of the pedestal, the groove includes being set to institute
State the region of the first extension.
Optionally, the bottom of the mounting base is circumferentially with outwardly extending second extension, the first through hole and institute
The second through-hole is stated set on second extension.
Optionally, the mounting base includes: the first pedestal, and bottom size is less than its top dimension；And second pedestal,
Its bottom size is greater than its top dimension, and the first through hole and second through-hole are set to the bottom of second pedestal；
The bottom of first pedestal is connect with the top of second pedestal.
Optionally, the bottom of first pedestal is circumferentially at least one welding notch, to be used for first pedestal
With the welding of second pedestal.
Optionally, the area of section of the top area of the first through hole is less than the area of section of bottom section.
Optionally, the area of section of the outlet at bottom of the first through hole is 2~8 times of the area of section of top inlet.
Optionally, second through-hole is inclined hole, logical along the direction of top to the bottom of second through-hole, described second
The central axes in hole are tilted to the central axes direction of the connected pathways.
Optionally, the second position of the floating bushing is in flared along the direction of its bottom to top.
Optionally, ignition electric nozzle component further includes ignition electric nozzle, and first end sequentially passes through the floating bushing and described passes through
Break-through road, with for being set in the outer ring burner inner liner, second end is located at outside the floating bushing.
Optionally, the first position of the floating bushing is equipped with several third through-holes, for drawing the gas in the cavity
To the ignition electric nozzle；Along the direction at the top of the floating bushing to bottom, the central axes of the third through-hole are run through to described
The central axes direction in channel tilts.
Optionally, the through-hole of the first position of the ignition electric nozzle and the floating bushing is interference fitted, and/or, the point
The through-hole in the region between thermoelectricity mouth and first position and second position is interference fitted, and/or, the ignition electric nozzle is floated with described
There is interval between the through-hole of the second position of dynamic set.
Optionally, the inner wall of the floating bushing is equipped at least one guide groove, and the guide groove is set to the ignition electric nozzle
The region being interference fitted with the through-hole of the floating bushing.
Some embodiments of the utility model provides a kind of combustion chamber comprising the ignition electric nozzle group of above-mentioned combustion chamber
Part.
Optionally, combustion chamber further includes outer ring burner inner liner, the bottom of the mounting base in the ignition electric nozzle component with it is described
The welding of outer ring burner inner liner.
Some embodiments of the utility model provides a kind of gas turbine comprising above-mentioned combustion chamber.
Based on the above-mentioned technical proposal, the utility model at least has the advantages that
In some embodiments, it is logical that the region that the bottom of mounting base is located at burning indoor air flow upstream is equipped with several first
Hole, the region positioned at burning indoor air flow downstream are equipped with several second through-holes, and first through hole and the second through-hole are used to will be outer
Gas outside ring flame cylinder is led in outer ring burner inner liner；Upstream uses first through hole that can increase film overcast distance to protect
The installation region of ignition electric nozzle, downstream can eliminate the influence of ignition electric nozzle tail using the second through-hole, finally improve ignition power
The cooling effect of mouth installation region.
Detailed description of the invention
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings:
Fig. 1 is the schematic diagram for the gas turbine that some embodiments of the utility model provide；
Fig. 2 is the partial schematic diagram for the combustion chamber that some embodiments of the utility model provide；
Fig. 3 is the schematic cross-section for the ignition electric nozzle component that some embodiments of the utility model provide；
Fig. 4 is the schematic cross-section for the floating bushing component that some embodiments of the utility model provide；
Fig. 5 is the decomposition diagram for the floating bushing component that some embodiments of the utility model provide；
Fig. 6 is the welding schematic diagram of the second pedestal and the first pedestal that some embodiments of the utility model provide；
Fig. 7 is the elevational schematic view for the second pedestal that some embodiments of the utility model provide；
Fig. 8 is the schematic cross-section for the floating bushing that some embodiments of the utility model provide.
The meaning of numbering in the drawing:
100- fan；200- low-pressure compressor；300- high-pressure compressor；The combustion chamber 400-；500- high-pressure turbine；600- is low
Press turbine；
401- outer combustion case；Casing in the combustion chamber 402-；403- outer ring burner inner liner；404- inner ring burner inner liner；405-
Head of combustion chamber；406- diffuser；407- ignition electric nozzle component；408- outer ring channel；409- inner ring channel；
1- mounting base；11- first through hole；The second through-hole of 12-；13- pressing plate；The first pedestal of 14-；The second pedestal of 15-；16-
Weld notch；17- groove；18- connected pathways；19- cavity；
2- floating bushing；21- first position；22- second position；23- third through-hole；24- guide groove；
3- ignition electric nozzle；
A- first end stand-off distance from；B- second end stand-off distance from；The radial distance of c- ignition electric nozzle and floating bushing inner surface；D-
The central axes of three through-holes and the angle of connected pathways central axes.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, the technical solution in embodiment is carried out it is clear, complete
Ground description.Obviously, described embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, institute obtained by those of ordinary skill in the art without making creative efforts
There are other embodiments, fall within the protection scope of the utility model.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified
Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this is practical
The limitation of novel protected range.
In the description of the utility model, central axes of " top " of component or structure relative to " bottom " far from combustion chamber,
" bottom " is relative to " top " close to the central axes of combustion chamber.
In the description of the utility model, the central axes direction of connected pathways 18 being arranged in " axial direction " and mounting base 1 is consistent.
The connected pathways 18 being arranged in " radial direction " and mounting base 1 is radially consistent.
As shown in figure 3, being the schematic diagram of the ignition electric nozzle component for the combustion chamber that some embodiments of the utility model provide.
In some embodiments, the ignition electric nozzle component of combustion chamber includes mounting base 1, floating bushing 2 and ignition electric nozzle 3.Peace
Fill the outer ring burner inner liner 403 that seat 1 is used to be set to combustion chamber.The part-structure of floating bushing 2 is set in mounting base 1.Floating bushing 2 can phase
For 1 circumferential movement of mounting base, and/or, floating bushing 2 can be axially moved in restriction range relative to mounting base 1, and/or, it floats
Dynamic set 2 can limit radial motion in range relative to mounting base 1.The first end of ignition electric nozzle 3 passes through floating bushing 2 and mounting base
1, for being set in outer ring burner inner liner 403.
In some embodiments, as shown in fig. 6, mounting base 1 is equipped with connected pathways 18.
As shown in Figure 5, Figure 7, the region that the bottom of mounting base 1 is located at burning indoor air flow upstream is equipped with several first through hole
11, the region positioned at burning indoor air flow downstream is equipped with several second through-holes 12, and first through hole 11 and the second through-hole 12 are used
It is led in outer ring burner inner liner 403 in by the gas outside outer ring burner inner liner 403.Upstream increases film overcast using first through hole 11
For distance to protect the installation region of ignition electric nozzle 3, the influence of 3 tail of ignition electric nozzle is eliminated in downstream using the second through-hole 12.
Optionally, the bottom of mounting base 1 is equipped at least one and arranges the first through-hole 11.Such as: setting 1~10 ranked first through-hole
11。
In some embodiments, the area of section of the top area of first through hole 11 is less than the area of section of bottom section.
The upstream burner inner liner of ignition electric nozzle 3 nearby has cooling film overcast, but due to the presence of ignition electric nozzle 3, can lead
It causes the burner inner liner wall surface of the downstream area of ignition electric nozzle 3 can not be by film overcast, and then the structure of burner inner liner can be made to be destroyed,
Service life is reduced.
The region that the bottom of mounting base 1 is located at burning indoor air flow upstream is equipped with several first through hole 11, and cooling air is from the
The area coverage of air film is very big after the outflow of one through-hole 11, can effectively cool down the burner inner liner of 3 downstream area of ignition electric nozzle, prevents high
Warm combustion gas overlay area.
In some embodiments, the area of section of the top inlet of first through hole 11 is less than the area of section of outlet at bottom.
The area of section of the outlet at bottom of first through hole 11 is 2~8 times of the area of section of top inlet.Under identical cooling tolerance,
First through hole 11 can increase gaseous film control area.
Gaseous film control: being to summarize introducing secondary gas flow from one or more discrete holes on the surface in hot environment
Cooling working medium penetrates liquid, and Secondary Flow is made to be ejected into the surface of high temperature channel side, to protect the surface in intake region and downstream area.
Further, the inlet and outlet of first through hole 11 is coaxial, is conducive to cooling ignition electric nozzle 3 and outer ring burner inner liner 403.
Further, first through hole 11 is sudden expansion structure.Cooling air is entered by the import of first through hole 11, is then flowed
It is flowed out through expansion type face and finally from the outlet of first through hole 11, under identical cooling tolerance, first through hole 11 can increase air film
Film-cooled heat.
Further, the inner surface of first through hole 11 smoothly transits.
Optionally, first through hole 11 is stepped hole, flared hole, scallop hole or bellmouth.
Optionally, the bottom of mounting base 1 is equipped at least one and arranges the 2nd through-hole 12.Such as: setting 1~10 ranked second through-hole
12, it is preferably provided with the second through-hole of two rows or three rows 12.The quantity of the second through-hole 12 in every row can be identical or different.
In some embodiments, the second through-hole 12 is inclined hole, logical along the direction of top to the bottom of the second through-hole 12, second
The central axes in hole 12 are tilted to the central axes direction of connected pathways 18.Be conducive between the second pedestal 15 and inner ring burner inner liner 403
Welding.
Second through-hole 12 is gathered in direction of heat flow downstream position, and the second through-hole 12 can also be provided with hot-fluid side on a small quantity
Upstream position.
Since ignition electric nozzle 3 can stop the cooling air-flow of upstream to downstream, it is therefore desirable to be arranged in the downstream of ignition electric nozzle 3
Multiple rows of second through-hole 12.And it is mainly used to cool down the downstream area of ignition electric nozzle 3 from the cooling air that the second through-hole 12 is passed through.
In order to solve the problems, such as the cooling near ignition electric nozzle 3, using along downstream direction, upstream is added using first through hole 11
Big air film coverage distance to protect the installation region of ignition electric nozzle 3, reinforce penetration depth using the second through-hole 12, eliminate point by downstream
The influence of 3 tail of thermoelectricity mouth.
In some embodiments, mounting base 1 includes pedestal, and first through hole 11 and the second through-hole 12 are set to the bottom of pedestal,
The top of pedestal is equipped with groove 17.
In some embodiments, as shown in figure 4, mounting base 1 includes pressing plate 13, set on the top of pedestal, with groove 17 it
Between formed cavity 19.Under the limitation for the cavity 19 that floating bushing 2 can be formed between pressing plate 13 and pedestal, limiting in range freely
Axially and/or radially move.
Optionally, pressing plate 13 is set to the top of pedestal by welding.
In some embodiments, the top of mounting base 1 is circumferentially with outwardly extending first extension, and groove 17 includes setting
In the region of the first extension.
In some embodiments, the bottom of mounting base 1 is circumferentially with outwardly extending second extension, 11 He of first through hole
Second through-hole 12 is set to the second extension.
In some embodiments, as shown in figure 4, mounting base 1 includes the first pedestal 14 and the second pedestal 15.First pedestal 14
Bottom size be less than its top dimension.The bottom size of second pedestal 15 is greater than its top dimension.The bottom of first pedestal 14
It is connect with the top of the second pedestal 15.
As shown in fig. 6, groove 17 is set to the first pedestal 14.As shown in fig. 7, first through hole 11 and the second through-hole 12 are set to
The bottom of second pedestal 15.
Optionally, the second pedestal 15 is welded and fixed with the first pedestal 14.Second pedestal 15 is fixed on by welding
On outer ring burner inner liner 403.
In some embodiments, as shown in fig. 6, the bottom of the first pedestal 14 is circumferentially at least one welding notch 16,
With the welding for the first pedestal 14 and the second pedestal 15.
For welding notch 16 for filling solder, solder condenses and makes the first pedestal 14 and the in welding notch 16 after dissolving
Two pedestals 15 are fixed together, and can be greatly reduced thermal deformation caused by welding process using this welding manner and be asked
Topic.
Optionally, the bottom of the first pedestal 14 is circumferentially with 3~8 welding notches 16.Optionally, the shape of notch 16 is welded
Shape is rectangle, semicircle, circle, ellipse or triangle.
Optionally, pressing plate 13 is set to the top of the first pedestal 14 by welding.Such as: pressing plate 13 and the first pedestal
14 are welded using spot welding or complete penetraction and fusion in welding mode.Preferably spot welding, to reduce because welding bring thermal deformation problem.
In order to solve the hot coordination problem that ignition electric nozzle 3 passes through especially three layers wall surface of multilayer wall surface, it is provided with above-mentioned more
Layer mounting base 1 combines the structure of following floating bushings 2.
In some embodiments, mounting base 1 combines floating bushing 2 to form floating bushing component.
In some embodiments, the top of mounting base 1 is equipped with cavity 19.Floating bushing 2 includes first position 21 and second
Position 22.First position 21 is set in cavity 19；Second position 22 is set to outside cavity 19.Cavity 19 allow floating bushing 2 it is circumferential along it,
Axially and/or radially move.In the cavity 19 that the first position 21 of floating bushing 2 is formed between pedestal and pressing plate 13.First
The width at position 21 is greater than the width of first position 22, and first position 21 will not fall off from cavity 19.
Combustion chamber 400 work when, due between outer ring burner inner liner 403 and outer casing 401 it is hot it is lower will appear it is swollen
Hot coordination problem caused by bulk is different, it is possible to lead to outer ring burner inner liner 403 and 3 clamping stagnation of ignition electric nozzle and damage ignition power
Mouth 3 or outer ring burner inner liner 403 need that ignition electric nozzle component 407 is allowed to have axial and/or circumferential float function at this time.It is right
In double side wall burner inner liner, ignition electric nozzle is needed across casing, burner inner liner first layer wall surface, burner inner liner second layer wall surface, heat association
Tune problem is especially serious.Such as cannot appropriately handle, it is possible to lead to burner inner liner and ignition electric nozzle clamping stagnation, damage ignition electric nozzle or
Burner inner liner.
Second pedestal 15 of the disclosure is located at 14 lower section of the first pedestal, and the second pedestal 15 and the first pedestal 14 pass through weldering
The mode connect is fixed, and the second pedestal 15 is fixed on by welding on outer ring burner inner liner 403.First pedestal 14, pressure
Plate 13 can be moved with the movement of the second pedestal 15, and floating bushing 2 can the region defined by the first pedestal 14 and pressing plate 13
Inside move freely.When because of thermal expansion opposite deviate occurs for outer ring burner inner liner 403 and outer casing 401, the first pedestal 14, pressing plate
13, floating bushing 2 and the second pedestal 15 can be moved together with outer ring burner inner liner 403, therefore, efficiently solve outer ring burner inner liner 403
The problem of clamping stagnation may occur and damage with ignition electric nozzle 3.
In some embodiments, the second position 22 of floating bushing 2 is in flared along the direction of its bottom to top.
Optionally, floating bushing 2 is tubaeform, but not limited to this.Second position 22 be it is tubaeform, first position 21 be circle
Shape, and be cylindrical between first position 21 and second position 22.When installing to ignition electric nozzle 3, ignition electric nozzle 3 can be with
Any axial positions for touching the inner surface of floating bushing 2, are conducive to the installation of ignition electric nozzle 3.
Further, the inner surface of floating bushing 2 is the type face to smoothly transit, is conducive to the installation of ignition electric nozzle 3.
As shown in figure 3, the peak excursion that ignition electric nozzle 3 axially can permit during installation is ignition electric nozzle 3 and floating bushing 2
The radial distance c of inner surface.Between having between the inner wall for the groove 17 that 2 bottom of floating bushing circumferentially and on the first pedestal 14 is arranged
Stand-off distance from.According to the sectional view of floating bushing 2 and the first pedestal 14, clearance distance includes in 2 side of floating bushing and groove 17
The first end stand-off distance of wall is from the second end stand-off distance of a and 2 other side of floating bushing and 17 inner wall of groove from b.In order to solve ignition power
The interference problem that mouth 3 may occur during the installation process limits first end stand-off distance and is not less than with second end stand-off distance from the sum of b from a
The radial distance c of ignition electric nozzle 3 and 2 inner surface of floating bushing.
In some embodiments, as shown in figure 5, the first position 21 of floating bushing 2 is equipped with several third through-holes 23, being used for will
Gas in cavity 19 leads to ignition electric nozzle 3, cools down to ignition electric nozzle 3.Along the direction at the top of floating bushing 2 to bottom,
The central axes of third through-hole 23 are tilted to the central axes direction of connected pathways 18, the central axes of third through-hole 23 and connected pathways 18
Central axes between formed angle d (as shown in Figure 3).
Further, the angle d between the central axes of third through-hole 23 and the central axes of connected pathways 18 is acute angle.It is optional
Ground, the angle d of the central axes of the central axes and connected pathways 18 of third through-hole 23 are 30 °~60 °, preferably 30 °, 40 °, 45 °,
50 ° or 60 °.
Optionally, the first position 21 of floating bushing 2 is equipped at least one and arranges the 3rd through-hole 23.Such as: first of floating bushing 2
Position 21, which is equipped with 2~3, ranked third through-hole 23.
In some embodiments, the first end of ignition electric nozzle 3 sequentially passes through floating bushing 2 and connected pathways 18, for setting
In in outer ring burner inner liner 403, the second end of ignition electric nozzle 3 is located at outside floating bushing 2.
In some embodiments, 3 lower end surface of ignition electric nozzle exceeds 403 lower end surface of outer ring burner inner liner.Optionally, ignition electric nozzle
The distance between 3 lower end surfaces and 403 lower end surface of outer ring burner inner liner are 0~0.5mm.
In some embodiments, floating bushing 2 is equipped with the through-hole for allowing ignition electric nozzle 3 to pass through.
The through-hole of the first position 21 of ignition electric nozzle 3 and floating bushing 2 is interference fitted, and/or, ignition electric nozzle 3 and first
The through-hole in the region between position 21 and second position 22 is interference fitted, and/or, the second position of ignition electric nozzle 3 and floating bushing 2
There is interval between 22 through-hole.
In some embodiments, as shown in figure 8, the inner wall of floating bushing 2 is equipped at least one guide groove 24.Guide groove 24 is set
In the region that the through-hole of ignition electric nozzle 3 and floating bushing 2 is interference fitted.
Optionally, the inner wall of floating bushing 2 is equipped with 3~8 guide grooves 24, for providing cooling air cooling ignition electric nozzle 3.
Optionally, the curved type of guide groove 24.
Optionally, the rectangular in cross-section of guide groove 24, taper or circle.
In some embodiments, the inner wall of floating bushing 2 is equipped with the guide groove 24 of at least one shaped form.Guide groove 24 is set to
The region that the through-hole of ignition electric nozzle 3 and floating bushing 2 is interference fitted.
After installing due to ignition electric nozzle 3, a chamber is constituted between floating bushing 2 and ignition electric nozzle 3, air-flow can be intracavitary
Stagnation generates local high temperature zone, in order to solve the problems, such as floating bushing 2 and install the cooling in 3 hole of ignition electric nozzle, can be set more
The open-celled structure of kind form.Such as: penetration type inclined hole is opened on the pedestal of floating bushing 2, opens streamlined lead in the throat of floating bushing 2
To slot 24；Cool down ignition electric nozzle 3 preferably under conditions of identical cooling tolerance.
Further, guide groove 24 can be rectangular channel, cone tank, circular trough etc..At least one 24 axis of guide groove is
One lines to smoothly transit can make the cooling gas flowed into generate tangential velocity, and gas-circulating is made to light a fire using this structure
Sparking plug 3 flows, therefore can achieve the effect of cooling ignition electric nozzle 3.
On the whole, ignition electric nozzle component 407 can reduce the temperature of the burner inner liner around ignition electric nozzle 3 and ignition electric nozzle 3
Degree guarantees the sparking plug amount of floating under heat is coordinated, improves ignition electric nozzle 3 and combustion chamber safety in utilization and service life, be easy to pacify
Dress.
Some embodiments provide a kind of combustion chamber, combustion chamber includes the ignition electric nozzle component 407 of above-mentioned combustion chamber.
Optionally, the setting quantity of ignition electric nozzle component 407 is 2~6.
In some embodiments, further include outer ring burner inner liner 403, the bottom of the mounting base 1 in ignition electric nozzle component 407 with
Outer ring burner inner liner 403 welds.
In gas turbine engine work, since outer ring burner inner liner 403 and temperature environment locating for casing are different,
The heat distortion amount of generation is not also identical, it is possible to lead to outer ring burner inner liner 403 and 3 clamping stagnation of ignition electric nozzle, damage ignition electric nozzle 3
Or outer ring burner inner liner 403.
Pressing plate 13 and the first pedestal 14 in the disclosure are welded and fixed together, and the first pedestal 14 and the second pedestal 15 pass through
Welding notch is welded and fixed, and the second pedestal 15 and outer ring burner inner liner 403 are by being welded and fixed.Floating bushing 2 can be in pressing plate
13 and first move freely in the region that limits of pedestal 1, therefore when since heat is coordinated phase occurs for inner ring burner inner liner 403 and casing
When to change in location, floating bushing 2, pressing plate 13, the first pedestal 14 and the second pedestal 15 can be moved with outer ring burner inner liner 403,
Therefore the catching phenomenon for avoiding outer ring burner inner liner 403 Yu ignition electric nozzle 3 is conducive to protect outer ring burner inner liner 403 and ignition power
Mouth 3.
Some embodiments provide a kind of gas turbine, gas turbine includes above-mentioned combustion chamber 400.
Ignition electric nozzle 3 is mounted on the outer ring burner inner liner 403 of the combustion chamber 400 of gas turbine.Ignition electric nozzle 3 includes electricity
Pole, conducting wire and insulating materials generate two interpolar gas breakdown of head in spark ignition combustion chamber flame drum using high-voltage electricity
Fuel air mixture, so that gas turbine is started to work.
As shown in Figure 1, gas turbine includes fan 100, low-pressure compressor in a specific embodiment of gas turbine
200, high-pressure compressor 300, combustion chamber 400, high-pressure turbine 500 and low-pressure turbine 600.When engine operation, air is through too low
After pressing compressor 200 to compress, high-pressure compressor 300 is flowed into, pressure-air outflow high-pressure compressor 300 enters back into combustion chamber 400
In with fuel burning, the high-temperature high-pressure fuel gas formed after burning enters high-pressure turbine 500 and low-pressure turbine 600, passes through turbine
Acting respectively drives high-pressure compressor 300, fan 100 and low-pressure compressor 200.
As shown in Fig. 2, combustion chamber 400 includes outer casing 401, interior casing in a specific embodiment of combustion chamber 400
402, outer ring burner inner liner 403, inner ring burner inner liner 404, head of combustion chamber 405, diffuser 406 and to a little less thermoelectricity nozzle assembly
407。
Outer ring channel 408 is in the region limited between outer casing 401 and outer ring burner inner liner 403.Inner ring burner inner liner 404 with it is interior
Inner ring channel 409 is in the region limited between casing 402.Outer ring burner inner liner 403, inner ring burner inner liner 404 and head of combustion chamber
Region defined by 405 is combustion reaction chamber.
Diffuser 406 connects with the outlet of high-pressure compressor 300.The air that high-pressure compressor 300 exports flows through diffuser 406
Respectively enter outer ring channel 408, inner ring channel 409 and head of combustion chamber 405.
Gas in outer ring channel 408 is mainly used for cooling outer ring burner inner liner 403, and enters by outer ring burner inner liner 403
Combustion reaction chamber.Gas in inner ring channel 409 is mainly used for cooling inner ring burner inner liner 404, and by inner ring burner inner liner 404 into
Enter combustion reaction chamber.The gas of head of combustion chamber 405 enters combustion reaction chamber and fuel injection system (not shown) is sprayed
Fuel oil mixing, and occur acutely to chemically react and burn and generate high-temperature fuel gas under the ignition action of ignition electric nozzle component 407,
High-temperature fuel gas passes through high-pressure turbine 500 and low-pressure turbine 600, and converts mechanical energy for chemical energy.
By the description of above-mentioned each embodiment, the disclosure is at least used to improve following problems.
Cooling problem near ignition electric nozzle: burner inner liner is equipped with several ignition electric nozzles, and effect is to light burner inner liner
Interior fuel gas makes gas turbine start to work, but since ignition electric nozzle is bluff body, gas can occur downstream
Wake flow is separated and generates, therefore the continuous coo1ing air film of ignition electric nozzle downstream burner inner liner near wall generates interruption, is degrading this
The cooling condition of region burner inner liner wall surface.The used ignition electric nozzle component of the disclosure can effective increasing ignition sparking plug and ignition power
The cooling effect of burner inner liner wall area near mouth, and then promote the service life of combustion chamber and ignition electric nozzle.
The hot coordination problem of ignition electric nozzle: floating structure of the mounting base that ignition electric nozzle component uses in conjunction with floating bushing can have
Effect promotes floating effect, avoids ignition electric nozzle clamping stagnation, and then promote the safety in utilization of combustion chamber and ignition electric nozzle.
Installation question: floating bushing inner surface uses the type face to smoothly transit, and the design of similar bell shape, this structure
Type can effectively solve the interference problem that ignition electric nozzle may occur during the installation process.
In the description of the present invention, it should be understood that being limited using the words such as " first ", " second ", " third "
Determine components, it is only for convenient for distinguishing to above-mentioned parts, there is no Stated otherwise such as, there is no special for above-mentioned word
Meaning, therefore should not be understood as the limitation to scope of protection of the utility model.
Finally it should be noted that: above embodiments are only to illustrate the technical solution of the utility model rather than limit it
System；Although the utility model has been described in detail with reference to the preferred embodiment, those of ordinary skill in the art should
Understand: specific implementation of the utility model can still be modified or is equally replaced to some technical characteristics
It changes；Without departing from the spirit of technical solutions of the utility model, should all cover in the claimed technical solution of the utility model
In range.
Claims (18)
1. a kind of ignition electric nozzle component of combustion chamber, which is characterized in that including mounting base (1), for being set to the outer ring of combustion chamber
Burner inner liner (403)；The mounting base (1) is equipped with the connected pathways (18) for installing ignition electric nozzle (3)；The mounting base (1)
Bottom be located at burning indoor air flow upstream region be equipped with several first through hole (11), positioned at burning indoor air flow downstream area
Domain is equipped with several second through-holes (12), and the first through hole (11) and second through-hole (12) are used to the outer ring fire
The external gas of flame cylinder (403) is led in the outer ring burner inner liner (403).
2. the ignition electric nozzle component of combustion chamber as described in claim 1, which is characterized in that set at the top of the mounting base (1)
There are cavity (19)；Ignition electric nozzle component further includes floating bushing (2), and the floating bushing (2) includes first position (21) and second
Position (22)；The first position (21) is set in the cavity (19)；The second position (22) is set to the cavity (19) outside；
The cavity (19) is for limiting the floating bushing (2) along the region that it is axially and/or radially moved.
3. the ignition electric nozzle component of combustion chamber as claimed in claim 2, which is characterized in that the mounting base (1) includes:
Pedestal, the first through hole (11) and second through-hole (12) are set to the bottom of the pedestal, the top of the pedestal
Equipped with groove (17)；And
Pressing plate (13) forms the cavity (19) between the top of the pedestal, with the groove (17).
4. the ignition electric nozzle component of combustion chamber as claimed in claim 3, which is characterized in that be circumferentially at the top of the pedestal
Outwardly extending first extension, the groove (17) include set on the region of first extension.
5. the ignition electric nozzle component of combustion chamber as described in claim 1, which is characterized in that the bottom week of the mounting base (1)
To the second extension with outward extension, the first through hole (11) and second through-hole (12) are set to described second and extend
Portion.
6. the ignition electric nozzle component of combustion chamber as described in claim 1, which is characterized in that the mounting base (1) includes:
First pedestal (14), bottom size are less than its top dimension；And
Second pedestal (15), bottom size are greater than its top dimension, the first through hole (11) and second through-hole (12)
It is set to the bottom of second pedestal (15)；
The bottom of first pedestal (14) is connect with the top of second pedestal (15).
7. the ignition electric nozzle component of combustion chamber as claimed in claim 6, which is characterized in that the bottom of first pedestal (14)
It is circumferentially at least one welding notch (16), to be used for the welding of first pedestal (14) and second pedestal (15).
8. the ignition electric nozzle component of combustion chamber as described in claim 1, which is characterized in that the top of the first through hole (11)
The area of section in region is less than the area of section of bottom section.
9. the ignition electric nozzle component of combustion chamber as claimed in claim 8, which is characterized in that the bottom of the first through hole (11)
The area of section of outlet is 2~8 times of the area of section of top inlet.
10. the ignition electric nozzle component of combustion chamber as described in claim 1, which is characterized in that second through-hole (12) is oblique
Hole, along the direction of top to the bottom of second through-hole (12), the central axes of second through-hole (12) are to described through logical
The central axes direction in road (18) tilts.
11. the ignition electric nozzle component of combustion chamber as claimed in claim 2, which is characterized in that second of the floating bushing (2)
Position (22) is in flared along the direction of its bottom to top.
12. the ignition electric nozzle component of combustion chamber as claimed in claim 2, which is characterized in that it further include ignition electric nozzle (3),
First end sequentially passes through the floating bushing (2) and the connected pathways (18), for being set to the outer ring burner inner liner (403)
Interior, second end is located at the floating bushing (2) outside.
13. the ignition electric nozzle component of combustion chamber as claimed in claim 12, which is characterized in that the first of the floating bushing (2)
Position (21) is equipped with several third through-holes (23), for the gas in the cavity (19) to be led to the ignition electric nozzle (3)；Edge
The direction of top to the bottom of the floating bushing (2), the central axes of the third through-hole (23) are to the connected pathways (18)
The inclination of central axes direction.
14. the ignition electric nozzle component of combustion chamber as claimed in claim 12, which is characterized in that the ignition electric nozzle (3) and institute
State the through-hole interference fit of the first position (21) of floating bushing (2), and/or, the ignition electric nozzle (3) and first position (21) with
The through-hole in the region between second position (22) is interference fitted, and/or, the of the ignition electric nozzle (3) and the floating bushing (2)
There is interval between the through-hole at two positions (22).
15. the ignition electric nozzle component of combustion chamber as claimed in claim 14, which is characterized in that the inner wall of the floating bushing (2)
Equipped at least one guide groove (24), the guide groove (24) is set to the through-hole of the ignition electric nozzle (3) and the floating bushing (2)
The region of interference fit.
16. a kind of combustion chamber, which is characterized in that the ignition electric nozzle including the described in any item combustion chambers of such as claim 1~15
Component (407).
17. combustion chamber as claimed in claim 16, which is characterized in that further include outer ring burner inner liner (403), the ignition electric nozzle
The bottom of mounting base (1) in component (407) and the outer ring burner inner liner (403) are welded.
18. a kind of gas turbine, which is characterized in that including the combustion chamber as described in claim 16 or 17.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821574495.9U CN209053698U (en) | 2018-09-26 | 2018-09-26 | Ignition electric nozzle component, combustion chamber and the gas turbine of combustion chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821574495.9U CN209053698U (en) | 2018-09-26 | 2018-09-26 | Ignition electric nozzle component, combustion chamber and the gas turbine of combustion chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209053698U true CN209053698U (en) | 2019-07-02 |
Family
ID=67049495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821574495.9U Active CN209053698U (en) | 2018-09-26 | 2018-09-26 | Ignition electric nozzle component, combustion chamber and the gas turbine of combustion chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209053698U (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112678193A (en) * | 2020-12-30 | 2021-04-20 | 中国航发沈阳发动机研究所 | Aeroengine pull rod circumferential adjusting mechanism |
| CN113124424A (en) * | 2019-12-31 | 2021-07-16 | 中国航发商用航空发动机有限责任公司 | Double-wall flame tube and electric nozzle mounting seat thereof |
| CN113494362A (en) * | 2020-04-08 | 2021-10-12 | 中国航发商用航空发动机有限责任公司 | Ignition electric nozzle mounting assembly, combustion chamber and aircraft engine |
| CN113669162A (en) * | 2021-08-31 | 2021-11-19 | 中国航发贵阳发动机设计研究所 | Electric nozzle bush with cooling structure |
| CN115183277A (en) * | 2022-06-02 | 2022-10-14 | 中国航发四川燃气涡轮研究院 | Flame tube |
| CN115405949A (en) * | 2022-08-19 | 2022-11-29 | 中国航发湖南动力机械研究所 | Ignition device and method, combustion chamber and gas turbine |
| CN115614776A (en) * | 2021-07-13 | 2023-01-17 | 中国航发商用航空发动机有限责任公司 | Combustion chamber test device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113124424A (en) * | 2019-12-31 | 2021-07-16 | 中国航发商用航空发动机有限责任公司 | Double-wall flame tube and electric nozzle mounting seat thereof |
| CN113494362A (en) * | 2020-04-08 | 2021-10-12 | 中国航发商用航空发动机有限责任公司 | Ignition electric nozzle mounting assembly, combustion chamber and aircraft engine |
| CN113494362B (en) * | 2020-04-08 | 2022-12-16 | 中国航发商用航空发动机有限责任公司 | Ignition electric nozzle mounting assembly, combustion chamber and aircraft engine |
| CN112678193A (en) * | 2020-12-30 | 2021-04-20 | 中国航发沈阳发动机研究所 | Aeroengine pull rod circumferential adjusting mechanism |
| CN112678193B (en) * | 2020-12-30 | 2023-06-02 | 中国航发沈阳发动机研究所 | Circumferential adjusting mechanism for pull rod of aero-engine |
| CN115614776A (en) * | 2021-07-13 | 2023-01-17 | 中国航发商用航空发动机有限责任公司 | Combustion chamber test device |
| CN113669162A (en) * | 2021-08-31 | 2021-11-19 | 中国航发贵阳发动机设计研究所 | Electric nozzle bush with cooling structure |
| CN115183277A (en) * | 2022-06-02 | 2022-10-14 | 中国航发四川燃气涡轮研究院 | Flame tube |
| CN115183277B (en) * | 2022-06-02 | 2024-05-17 | 中国航发四川燃气涡轮研究院 | Flame tube |
| CN115405949A (en) * | 2022-08-19 | 2022-11-29 | 中国航发湖南动力机械研究所 | Ignition device and method, combustion chamber and gas turbine |
| CN115405949B (en) * | 2022-08-19 | 2023-12-15 | 中国航发湖南动力机械研究所 | Ignition device, ignition method, combustion chamber and gas turbine |
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