CN203395943U - Combustion chamber flame tube - Google Patents
Combustion chamber flame tube Download PDFInfo
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- CN203395943U CN203395943U CN201320348893.XU CN201320348893U CN203395943U CN 203395943 U CN203395943 U CN 203395943U CN 201320348893 U CN201320348893 U CN 201320348893U CN 203395943 U CN203395943 U CN 203395943U
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- inner liner
- burner inner
- rear wall
- described burner
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Abstract
The utility model provides a combustion chamber flame tube, which comprises a flame tube front wall module and a flame tube rear wall module, the flame tube front wall module and the flame tube rear wall module are divided along a base line perpendicular to the central line of the combustion chamber flame tube, and the edge of the flame tube front wall module is connected with the edge of the flame tube rear wall module; the flame tube front wall module is of an integrated semicircular cover-shaped structure, the middle of the flame tube front wall module is provided with a first mounting seat which is of a flange structure, and the first mounting seat is connected with the diffuser case of a compressor; the flame tube rear wall module is of an integrated semicircular cover-shaped structure matched with the flame tube front wall module, a containing space for containing gas and air is defined between the flame tube front wall module and the flame tube rear wall module, the middle of the flame tube rear wall module is provided with a second mounting seat which is of a flange structure, and the second mounting seat is connected with a combustion chamber case. The combustion chamber flame tube is of a split structure which is divided along the base line perpendicular to the central line of the combustion chamber flame tube, has a simple structure, and is convenient to assemble and disassemble and easy to maintain.
Description
Technical field
The utility model relates to gas-turbine unit field, especially, relates to a kind of combustion chamber flame drum.
Background technology
At present, the Small Gas Turbine Engine using on market is because flow is little, rotating speed is high, therefore usually adopt centrifugal calming the anger and the fuel system of centrifugal oil swirling.In order to make full use of bulk, shorten the distance between rotor fulcrum, often adopt annular radial axial combustor.
Burner inner liner in current annular radial axial combustor usually adopts the version of inside and outside combination, as shown in accompanying drawing Fig. 1, the burner inner liner outer ring assembly 3 and the interior ring assemblies 4 of burner inner liner that comprise tubular structure, in burner inner liner, ring assemblies 4 is arranged in burner inner liner outer ring assembly 3, and is enclosed to form the gas passage for burning gases circulation with burner inner liner outer ring assembly 3; Burner inner liner outer ring assembly 3 comprises blender combination 31 and front vortex board 32, and blender combination 31 is connected with front vortex board 32 by bolt, nut and spring shim, and by argon arc welding, nuts and bolt is welded; Blender combination 31 comprises gaseous mixture housing 310, air inlet bucket 311, bonnet 312 and the first rear mounting edge 313, wherein, gaseous mixture housing 310, bonnet 312 and the first rear mounting edge 313 are connected successively, gaseous mixture housing 310 is connected with front vortex board 32, air inlet bucket 311 is fixedly arranged on the inwall of gaseous mixture housing 310, and the first rear mounting edge 313 is fixed with casing; In burner inner liner, ring assemblies 4 comprises interior vortex board 410, conically shaped 411 and the second rear mounting edge 412 being connected successively, and wherein, the second rear mounting edge 412 is fixed with casing; Front vortex board 32 is enclosed to form the radial gas passages for burning gases circulation with interior vortex board 410, and blender combination 31 is enclosed to form the axial gas passage for burning gases circulation with conically shaped 411.
Again by reference to the accompanying drawings shown in Fig. 1, in burner inner liner outer ring assembly 3 and burner inner liner, ring assemblies 4 is two separate assemblies, and burner inner liner outer ring assembly 3 is fixed with casing by the first rear mounting edge 313 on it, in burner inner liner, ring assemblies 4 is fixed with casing by the second rear mounting edge 412 on it, by adjusting the thickness of the adjustment pad arranging between the first rear mounting edge 313 and the second mounting edge 412 both and casing, thus both relative positions of ring assemblies 4 in Indirect method burner inner liner outer ring assembly 3 and burner inner liner.Because the relative position of ring assemblies 4 in burner inner liner outer ring assembly 3 and burner inner liner before assembling is uncertain, therefore need match the relative position of ring assemblies 4 in burner inner liner outer ring assembly 3 and burner inner liner by trial assembly measures, and then by calculating, determine adjustment pad and the relative position that adopts which kind of thickness, part that whole assembling process relates to is many, assembling process is complicated.When engine flame tube breaks down and need change it time, needs trial assembly again to join and select adjustment pad, whole process is more loaded down with trivial details, and engine is easy care not.
Utility model content
The utility model aim to provide a kind of simple in structure, mounting or dismounting are convenient and the combustion chamber flame drum that is easy to safeguard, to solve the adjusting difficulty that existing combustion chamber flame drum exists and to assemble complicated technical problem.
For achieving the above object, the utility model provides a kind of combustion chamber flame drum, comprise: the burner inner liner antetheca assembly and the burner inner liner rear wall assembly that along the baseline subdivision vertical with the center line of combustion chamber flame drum, form, the edge of burner inner liner antetheca assembly is connected with the edge of burner inner liner rear wall assembly; Burner inner liner antetheca assembly is the hood-like structure of semicircle of one, and its middle part is provided with the first mount pad that is flange arrangement, and the first mount pad is connected with the diffuser casing of compressor; Burner inner liner rear wall assembly is the hood-like structure of semicircle of the one matching with burner inner liner antetheca assembly, between burner inner liner antetheca assembly and burner inner liner rear wall assembly, be limited with for holding the spatial accommodation of combustion gas and air, the middle part of burner inner liner rear wall assembly is provided with the second mount pad that is flange arrangement, and the second mount pad is connected with combustion box.
Further, on the outer peripheral face of burner inner liner antetheca assembly, near its edge, be provided with one group of intermediate plate of arranging along its contour, intermediate plate is list structure, the outer peripheral face of one end and burner inner liner antetheca assembly is fixed, the other end extends towards burner inner liner rear wall assembly, and burner inner liner rear wall assembly is embedded between intermediate plate and the outer peripheral face of burner inner liner antetheca assembly and is connected with burner inner liner antetheca assembly by its edge.
Further, outer wall after burner inner liner, the bowl structure of perforate in the middle of being, its perforate end is provided with the second mount pad, and the edge of its flared end embeds between intermediate plate and the outer peripheral face of burner inner liner antetheca assembly; Gas conduct pipe, is arranged at after burner inner liner in outer wall, be with burner inner liner after the bowl structure of the middle perforate that adapts of outer wall, after gas conduct pipe and burner inner liner, outer wall space is between the two enclosed to form the air guide channel for combustion gas and circulation of air; One group of support plate, is arranged at after burner inner liner between outer wall and gas conduct pipe ，Qie Qi two ends and penetrates respectively outer wall and gas conduct pipe after burner inner liner; Sparking plug conduit, is arranged at after burner inner liner between outer wall and gas conduct pipe ，Qie Qi two ends and penetrates respectively outer wall and gas conduct pipe after burner inner liner; Nozzle ring, is fixedly arranged on the perforate end of gas conduct pipe, and is communicated with the air guide channel being enclosed to form by outer wall after burner inner liner and gas conduct pipe; Burner inner liner rear wall, in the middle of being, the bowl structure of perforate, is arranged in gas conduct pipe, and the inwall of the edge of its flared end and gas conduct pipe flared end is fixed; Burner inner liner rear wall basin, in the middle of being, the bowl structure of perforate, is arranged in burner inner liner rear wall, and the inwall of the edge of its flared end and burner inner liner back wall aperture end is fixed; And comb tooth part, being tubular structure, the periphery that is arranged at burner inner liner rear wall Pen Nei，Qi one end and burner inner liner rear wall basin perforate end is fixed, and its other end extends towards the enlarging direction of burner inner liner rear wall basin.
Further, after burner inner liner, on outer wall, offer circle first blending hole, circle second blending hole, first plate hole of a circle, a circle Cooling Holes and a circle crack arrest groove of arranging along its contour; Each crack arrest groove in one circle crack arrest groove all from burner inner liner the edge of the flared end of outer wall along the radially extension of outer wall after burner inner liner; The perforate end of first plate hole of one circle, circle first blending hole, circle second blending hole and circle crack arrest groove outer wall from burner inner liner is arranged in after burner inner liner on outer wall successively along its flared end; Each Cooling Holes in one circle Cooling Holes is arranged between adjacent two crack arrest grooves of a circle crack arrest groove.
Further, on gas conduct pipe, offer second plate hole of a circle penetrating along one group of support plate of confession of its contour layout.
Further, on burner inner liner rear wall, offer and be a plurality of first fish scale holes of fish scale-shaped structure, circle first primary holes of arranging along its contour and the sparking plug hole of passing for sparking plug; Sparking plug hole overlaps with a primary holes in circle first primary holes.
Further, on burner inner liner rear wall basin, offer circle second Cooling Holes of arranging along its contour.
Further, rear wall air ring, is sheathed on outside burner inner liner rear wall basin, is the bowl structure of the middle perforate adapting with burner inner liner rear wall basin, the inwall of the edge of its flared end and burner inner liner back wall aperture end is fixed, and the edge of burner inner liner rear wall basin flared end and the inwall of rear wall air ring are fixed.
Further, intermediate sleeve, is arranged between gas conduct pipe and comb tooth part, and fixes with gas conduct pipe.
Further, the first support ring, in the middle of being, the class bowl structure of perforate, is arranged between intermediate sleeve and comb tooth part, and its flared end and intermediate sleeve are fixed, and its perforate end and comb tooth part are fixed.
Further, the second support ring, the class bowl structure of perforate in the middle of being, is sheathed on outside the perforate end of outer wall after burner inner liner, and after its perforate end and burner inner liner, the outer peripheral face of the perforate end of outer wall is fixed, and its flared end is connected with the second mount pad.
Further, the 3rd support ring, V-shaped along its section radially, be arranged between the second support ring and nozzle ring, one side and the second support ring are fixed, and its opposite side and nozzle ring are fixed.
Further, burner inner liner antetheca, the bowl structure of perforate in the middle of being, its perforate end is sheathed on outside the first mount pad and fixes with the outer peripheral face of the first mount pad, on the outer peripheral face of its flared end, near its edge, be provided with one group of intermediate plate of arranging along its contour, burner inner liner antetheca is connected with burner inner liner rear wall by intermediate plate.
Further, on burner inner liner antetheca, offer circle second primary holes that is a plurality of second fish scale holes of fish scale-shaped structure and arranges along its contour.
The utlity model has following beneficial effect:
1, the opposite opened structure of combustion chamber flame drum of the present utility model for forming along the baseline subdivision vertical with its center line, simple in structure, mounting or dismounting are convenient, be easy to safeguard;
2, burner inner liner rear wall assembly is movably connected by intermediate plate and burner inner liner antetheca assembly, therefore what limited by burner inner liner antetheca assembly and burner inner liner rear wall assembly adjusts according to the volume of the burning gases of filling automatically for holding the large I of the spatial accommodation of combustion gas and air, it is flexible, convenient to adjust.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Sectional structure schematic diagram when Fig. 1 is the combustion chamber flame drum of prior art and casing assembling;
Fig. 2 is assemblied in the sectional structure schematic diagram in combustion box according to combustion chamber flame drum of the present utility model;
Fig. 3 is the sectional structure schematic diagram of the burner inner liner rear wall assembly in Fig. 1;
Fig. 4 is the space structure schematic diagram of outer wall after the burner inner liner in Fig. 3;
Fig. 5 is the space structure schematic diagram of the gas conduct pipe in Fig. 3;
Fig. 6 is the space structure schematic diagram of the support plate in Fig. 3;
Fig. 7 is the space structure schematic diagram of the burner inner liner rear wall in Fig. 3;
Fig. 8 is the plan structure schematic diagram of Fig. 7;
Fig. 9 is the sectional structure schematic diagram of the comb tooth part in Fig. 3;
Figure 10 is the sectional structure schematic diagram of the burner inner liner antetheca assembly in Fig. 1;
Figure 11 is the space structure schematic diagram of the burner inner liner antetheca in Figure 10; And
Figure 12 is the main TV structure schematic diagram of Figure 11.
Description of reference numerals
1, burner inner liner antetheca assembly; 10, the first mount pad; 11, burner inner liner antetheca; 111, the second fish scale hole; 112, the second primary holes; 100, intermediate plate; 2, burner inner liner rear wall assembly; 20, the second mount pad; 21, outer wall after burner inner liner; 211, the first blending hole; 212, the second blending hole; 213, first plate hole; 214, Cooling Holes; 215, crack arrest groove; 22, gas conduct pipe; 221, second plate hole; 23, support plate; 24, sparking plug conduit; 25, nozzle ring; 26, burner inner liner rear wall; 261, the first fish scale hole; 262, the first primary holes; 263, sparking plug hole; 27, burner inner liner rear wall basin; 271, the second Cooling Holes; 28, comb tooth part; 200, rear wall air ring; 210, intermediate sleeve; 220, the first support ring; 230, the second support ring; 240, the 3rd support ring; 3, burner inner liner outer ring assembly; 31, blender combination; 310, gaseous mixture housing; 311, air inlet bucket; 312, bonnet; 313, the first rear mounting edge; 32, front vortex board; 4, ring assemblies in burner inner liner; 410, interior vortex board; 411, conically shaped; 412, the second rear mounting edge.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figure 2, combustion chamber flame drum of the present utility model, comprise the burner inner liner antetheca assembly 1 and the burner inner liner rear wall assembly 2 that along the baseline subdivision vertical with the center line of combustion chamber flame drum, form, the edge of burner inner liner antetheca assembly 1 is connected with the edge of burner inner liner rear wall assembly 2; Burner inner liner antetheca assembly 1 is the hood-like structure of semicircle of one, and its middle part is provided with the first mount pad 10, the first mount pads 10 that are flange arrangement and is connected with the diffuser casing of compressor; Burner inner liner rear wall assembly 2 is the hood-like structure of semicircle of the one matching with burner inner liner antetheca assembly 1, between burner inner liner antetheca assembly 1 and burner inner liner rear wall assembly 2, be limited with for holding the spatial accommodation of combustion gas and air, the middle part of burner inner liner rear wall assembly 2 is provided with the second mount pad 20, the second mount pads 20 that are flange arrangement and is connected with combustion box.The opposite opened structure of combustion chamber flame drum of the present utility model for forming along the baseline subdivision vertical with its center line, simple in structure; During assembling, burner inner liner antetheca assembly 1 and burner inner liner rear wall assembly 2 can assemble with diffuser casing and combustion box respectively simultaneously, operating efficiency is high, and because assembling process does not relate to the assembling of other part, the simple and convenient disassembly of assembling, is convenient to safeguard.
Preferably, in the utility model, on the outer peripheral face of burner inner liner antetheca assembly 1, near its edge, be provided with one group of intermediate plate 100 of arranging along its contour, intermediate plate 100 is list structure, the outer peripheral face of one end and burner inner liner antetheca assembly 1 is fixed, the other end extends towards burner inner liner antetheca assembly 1, and burner inner liner rear wall assembly 2 is embedded between intermediate plate 100 and the outer peripheral face of burner inner liner antetheca assembly 1 and is connected with burner inner liner antetheca assembly 1 by its edge.In the present embodiment, the number of intermediate plate 100 is 15, is welded on the outer peripheral face of burner inner liner antetheca assembly 1 near on the position of its edge, for clamping the edge of burner inner liner rear wall assembly 2 by argon arc welding.In the utility model, because burner inner liner rear wall assembly 2 is movably connected by intermediate plate 100 and burner inner liner antetheca assembly 1, therefore what limited by burner inner liner antetheca assembly 1 and burner inner liner rear wall assembly 2 adjusts according to the volume of the burning gases of filling automatically for holding the large I of the spatial accommodation of combustion gas and air, it is flexible, convenient to adjust.
Particularly, shown in Fig. 3 and Fig. 4, burner inner liner rear wall assembly 2 of the present utility model comprises outer wall 21 after burner inner liner, after burner inner liner, outer wall 21 is the bowl structure of middle perforate, its perforate end is provided with the second mount pad 20, and the edge of its flared end embeds between intermediate plate 100 and the outer peripheral face of burner inner liner antetheca assembly 1.Further, after burner inner liner, on outer wall 21, offer circle first blending hole 211, circle second blending hole 212, first plate hole of a circle 213, a circle Cooling Holes 214 and a circle crack arrest groove 215 of arranging along its contour; The perforate end of first plate hole of one circle 213, circle first blending hole 211, circle second blending hole 212 and a circle crack arrest groove 215 outer wall 21 from burner inner liner is arranged in after burner inner liner on outer wall 21 successively along its flared end, and each Cooling Holes 214 in a circle Cooling Holes 214 is arranged between adjacent two crack arrest grooves 215 of a circle crack arrest groove 215.Wherein, the first blending hole 211 and the second blending hole 212 all adopt in-flanges structure, while offering blending hole, are that the inwall of outer wall 21 from burner inner liner is to outer wall perforate, not only can improve blending hole discharge coefficient, increase penetration depth, and can also strengthen the rigidity of outer wall 21 after burner inner liner; Each crack arrest groove 215 in one circle crack arrest groove 215 all from burner inner liner the edge of the flared end of outer wall 21 along the radially extension of outer wall 21 after burner inner liner, after burner inner liner during outer wall 21 expanded by heating, by design crack arrest groove 215, after can preventing burner inner liner, outer wall 21 edge does not rupture under overheat condition, thereby effectively extends the service life of outer wall 21 after burner inner liner.
Shown in Fig. 3 and Fig. 5, burner inner liner rear wall assembly 2 also comprises gas conduct pipe 22, gas conduct pipe 22 is arranged at after burner inner liner in outer wall 21, be with burner inner liner after the bowl structure of the middle perforate that adapts of outer wall 21, after gas conduct pipe 22 and burner inner liner, outer wall 21 space is between the two enclosed to form the air guide channel for combustion gas and circulation of air.
Shown in Fig. 3 and Fig. 6, burner inner liner rear wall assembly 2 also comprises one group of support plate 23, this group support plate 23 is radially evenly arranged at after burner inner liner between outer wall 21 and gas conduct pipe 22 along burner inner liner rear wall assembly 2, and support plate 23 two ends all stretch out and penetrate respectively outer wall 21 and gas conduct pipe 22 after burner inner liner, offer respectively first plate hole 213 and second plate hole 221 that for support plate 23, penetrate after burner inner liner on outer wall 21 and gas conduct pipe 22.In the utility model, a plate hole is flanging structure, and from burner inner liner, the inwall of outer wall 21 is offered and formed to outer wall, or offers and form to outer wall from the inwall of gas conduct pipe 22, and a plate hole is that flanging structure is convenient to and support plate 23 welding.Preferably, in the present embodiment, the number of support plate 23 is 15, and support plate 23 is hollow-core construction, is conducive to alleviate the weight of burner inner liner.Support plate 23 is mainly used in combustion gas and air to introduce in the spatial accommodation being limited by burner inner liner antetheca assembly 1 and burner inner liner rear wall assembly 2.
As shown in Figure 3, burner inner liner rear wall assembly 2 also comprises sparking plug conduit 24, and sparking plug conduit 24 is arranged at after burner inner liner between outer wall 21 and gas conduct pipe 22 ，Qie Qi two ends and penetrates respectively outer wall 21 and gas conduct pipe 22 after burner inner liner.Preferably, in the present embodiment, sparking plug conduit 24 is tubular structure
the main heat-blocking action that rises of mouth conduit 24, in order to protect the ignition electric nozzle arranging in the inner not by the high-temperature fuel gas ablation in burner inner liner.
As shown in Figure 3, burner inner liner rear wall assembly 2 also comprises nozzle ring 25, and nozzle ring 25 is fixedly arranged on the perforate end of gas conduct pipe 22, and is communicated with the air guide channel being enclosed to form by outer wall after burner inner liner 21 and gas conduct pipe 22.
As shown in Fig. 3, Fig. 7 and Fig. 8, burner inner liner rear wall assembly 2 also comprises burner inner liner rear wall 26, and in the middle of burner inner liner rear wall 26 is, the bowl structure of perforate, is arranged in gas conduct pipe 22, and the inwall of the edge of its flared end and gas conduct pipe 22 flared end is fixed.Further, on burner inner liner rear wall 26, offer and be a plurality of first fish scale holes 261 of fish scale-shaped structure, circle first primary holes 262 of arranging along its contour and the sparking plug hole 263 of passing for sparking plug, wherein, sparking plug hole 263 overlaps with a primary holes 262 in circle first primary holes 262.In the present embodiment, the number in the first fish scale hole 261 is 4, and irregular being arranged on burner inner liner rear wall 26.
As shown in Figure 3, burner inner liner rear wall assembly 2 also comprises burner inner liner rear wall basin 27, and in the middle of burner inner liner rear wall basin 27 is, the bowl structure of perforate, is arranged in burner inner liner rear wall 26, and the inwall of the edge of its flared end and burner inner liner rear wall 26 perforate ends is fixed.Preferably, on burner inner liner rear wall basin 27, offer circle second Cooling Holes 271 of arranging along its contour, for introducing cold air, to burner inner liner rear wall basin, carry out cooling.And
As shown in Figure 3 and Figure 9, comb tooth part 28, comb tooth part 28 is tubular structure, and the periphery that is arranged at burner inner liner rear wall basin 27Nei，Qi one end and burner inner liner rear wall basin 27 perforate ends is fixed, and its other end extends towards the enlarging direction of burner inner liner rear wall basin 27.In the utility model, burner inner liner rear wall assembly adopts labyrinth seals comb toothing, comb tooth part 28 comprises comb tooth, comb tooth cover, pressure ring and spacer ring, between comb tooth, by spacer ring, separated, comb tooth is pressed in comb tooth cover by pressure ring, finally with argon arc welding spot welding, pressure ring and comb tooth cover is fixed together, and comb tooth middle part is by the cold air hole air feed on turbine wheel shaft, to guarantee that having enough pressure of compressed airs obturages, thereby prevent that the inner combustion gas of burner inner liner from leaking and turbine part fuel gas return-flow.
Preferably, as shown in Figure 3, burner inner liner rear wall assembly 2 of the present utility model also comprises rear wall air ring 200, rear wall air ring 200 is sheathed on outside burner inner liner rear wall basin 27, the bowl structure that is the middle perforate adapting with burner inner liner rear wall basin 27, the inwall of the edge of its flared end and burner inner liner rear wall 26 perforate ends is fixed, and the edge of burner inner liner rear wall basin 27 flared end and the inwall of rear wall air ring 200 are fixed.Rear wall air ring 200 forms cooling air flow passage with burner inner liner rear wall basin 27 gap between the two, and this cooling air flow passage carries out cooling for introducing cold air to the wall of burner inner liner rear wall basin 27.
Preferably, as shown in Figure 3, burner inner liner rear wall assembly 2 also comprises intermediate sleeve 210, and intermediate sleeve 210 is arranged between gas conduct pipe 22 and comb tooth part 28, and fixing with gas conduct pipe 22, and nozzle ring 25 is fixed with the outer peripheral face of intermediate sleeve 210.Intermediate sleeve 210 is mainly used in connecting gas conduct pipe 22 and nozzle ring 25.
Preferably, as shown in Figure 3, burner inner liner rear wall assembly 2 also comprises the first support ring 220, the class bowl structure of perforate in the middle of the first support ring 220 is, be arranged between intermediate sleeve 210 and comb tooth part 28, its flared end and intermediate sleeve 210 are fixing, and its perforate end and comb tooth part 28 are fixing.In the present embodiment, the first support ring 220 is " Z " shape along its section radially, and the outer peripheral face of one bar horizontal sides and the inwall of intermediate sleeve 210 are fixed, and the outer peripheral face of the inner peripheral surface of its another horizontal sides and comb tooth part 28 is fixed.The first support ring 220, for connecting intermediate sleeve 210 and comb tooth part 28, makes 2 one-tenth of whole burner inner liner rear wall assemblies as a whole, and in reality preparation, the first support ring 220 is integrated with intermediate sleeve 210, and junction intensity is high.
Preferably, as shown in Figure 3, burner inner liner rear wall assembly 2 also comprises the second support ring 230, the class bowl structure of perforate in the middle of the second support ring 230 is, be sheathed on outside the perforate end of outer wall 21 after burner inner liner, after its perforate end and burner inner liner, the outer peripheral face of the perforate end of outer wall 21 is fixed, and its flared end is connected with the second mount pad 20.In the present embodiment, the second support ring 230 is fixed along the outer peripheral face of outer wall 21 perforate ends after its L-shaped ，Qi Chang Bian end of section radially and burner inner liner, and its minor face is fixing by bolt and self-locking nut and the second mount pad 20.The second support ring 230, for connecting outer wall 21 and the second mount pad 20 after burner inner liner, makes 2 one-tenth of whole burner inner liner rear wall assemblies as a whole.
Preferably, as shown in Figure 3, burner inner liner rear wall assembly 2 also comprises the 3rd support ring 240, the 3rd support ring 240 is arranged between the second support ring 230 and nozzle ring 25, the 3rd support ring 240 is V-shaped along its section radially, it is fixed with the inwall of the second support ring 230 on one side, and the outer wall of its another side and nozzle ring 25 is fixed.
In the utility model, as shown in Figure 10, Figure 11 and Figure 12, burner inner liner antetheca assembly 1 comprises burner inner liner antetheca 11, the bowl structure of perforate in the middle of burner inner liner antetheca 11 is, its perforate end is sheathed on outside the first mount pad 10 and fixes with the outer peripheral face of the first mount pad 10, on the outer peripheral face of its flared end, near its edge, be provided with one group of described intermediate plate 100 of arranging along its contour, the edge card of burner inner liner rear wall 26 is located between intermediate plate 100 and the outer peripheral face of burner inner liner antetheca 11.Further, on burner inner liner antetheca 11, offer circle second primary holes 112 that is a plurality of second fish scale holes 111 of fish scale-shaped structure and arranges along its contour, and the version of the second fish scale hole 111 and the second primary holes 112 is identical with the first primary holes 262 with the first fish scale hole 261 arranging on burner inner liner rear wall 26 respectively.The second fish scale hole 111 on burner inner liner antetheca 11 and the first fish scale hole 261 on burner inner liner rear wall 26 are mainly used in air feed and flow to the inside into burner inner liner, on the one hand cooling flame cylinder; On the other hand, the rotation direction of two strands of air-flows that entered by the first fish scale hole 261 and the second fish scale hole 111 is contrary, and together forms low speed recirculating zone to stabilize the flame with the first primary holes 262 and the second primary holes 112.
As can be seen from the above description, the utility model the above embodiments have realized following technique effect:
The opposite opened structure of combustion chamber flame drum of the present utility model for forming along the baseline subdivision vertical with its center line, simple in structure, mounting or dismounting are convenient, be easy to safeguard; Burner inner liner rear wall assembly is movably connected by intermediate plate and burner inner liner antetheca assembly, therefore what limited by burner inner liner antetheca assembly and burner inner liner rear wall assembly adjusts according to the volume of the burning gases of filling automatically for holding the large I of the spatial accommodation of combustion gas and air, it is flexible, convenient to adjust; The first blending hole and the second blending hole all adopt in-flanges structure, not only can improve blending hole discharge coefficient, increase penetration depth, and can also strengthen the rigidity of outer wall after burner inner liner; Support plate is hollow-core construction, is conducive to alleviate the weight of burner inner liner; On burner inner liner, be also provided with the first support ring, the second support ring and the 3rd support ring, for connecting the different parts between burner inner liner rear wall assembly.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (14)
1. a combustion chamber flame drum, is characterized in that, comprising:
The burner inner liner antetheca assembly (1) and the burner inner liner rear wall assembly (2) that along the baseline subdivision vertical with the center line of described combustion chamber flame drum, form, the edge of described burner inner liner antetheca assembly (1) is connected with the edge of described burner inner liner rear wall assembly (2);
Described burner inner liner antetheca assembly (1) is the hood-like structure of semicircle of one, and its middle part is provided with the first mount pad (10) that is flange arrangement, and described the first mount pad (10) is connected with the diffuser casing of compressor;
Described burner inner liner rear wall assembly (2) is the hood-like structure of semicircle of the one matching with described burner inner liner antetheca assembly (1), between described burner inner liner antetheca assembly (1) and described burner inner liner rear wall assembly (2), be limited with for holding the spatial accommodation of combustion gas and air, the middle part of described burner inner liner rear wall assembly (2) is provided with the second mount pad (20) that is flange arrangement, and described the second mount pad (20) is connected with combustion box.
2. combustion chamber flame drum according to claim 1, is characterized in that,
On the outer peripheral face of described burner inner liner antetheca assembly (1), near its edge, be provided with one group of intermediate plate (100) of arranging along its contour, described intermediate plate (100) is list structure, the outer peripheral face of one end and described burner inner liner antetheca assembly (1) is fixed, the other end extends towards described burner inner liner rear wall assembly (2), and described burner inner liner rear wall assembly (2) is embedded between described intermediate plate (100) and the outer peripheral face of described burner inner liner antetheca assembly (1) and is connected with described burner inner liner antetheca assembly (1) by its edge.
3. combustion chamber flame drum according to claim 2, is characterized in that, described burner inner liner rear wall assembly (2) comprising:
Outer wall after burner inner liner (21), the bowl structure of perforate in the middle of being, its perforate end is provided with described the second mount pad (20), and the edge of its flared end embeds between described intermediate plate (100) and the outer peripheral face of described burner inner liner antetheca assembly (1);
Gas conduct pipe (22), be arranged at after described burner inner liner in outer wall (21), be with described burner inner liner after the bowl structure of the middle perforate that adapts of outer wall (21), after described gas conduct pipe (22) and described burner inner liner, outer wall (21) space is between the two enclosed to form the air guide channel for combustion gas and circulation of air;
One group of support plate (23), is arranged at after described burner inner liner between outer wall (21) and described gas conduct pipe (22) ，Qie Qi two ends and penetrates respectively outer wall (21) and described gas conduct pipe (22) after described burner inner liner;
Sparking plug conduit (24), is arranged at after described burner inner liner between outer wall (21) and described gas conduct pipe (22) ，Qie Qi two ends and penetrates respectively outer wall (21) and described gas conduct pipe (22) after described burner inner liner;
Nozzle ring (25), is fixedly arranged on the perforate end of described gas conduct pipe (22), and is communicated with the air guide channel being enclosed to form by outer wall (21) after described burner inner liner and described gas conduct pipe (22);
Burner inner liner rear wall (26), in the middle of being, the bowl structure of perforate, is arranged in described gas conduct pipe (22), and the inwall of the edge of its flared end and described gas conduct pipe (22) flared end is fixed;
Burner inner liner rear wall basin (27), in the middle of being, the bowl structure of perforate, is arranged in described burner inner liner rear wall (26), and the inwall of the edge of its flared end and described burner inner liner rear wall (26) perforate end is fixed; And
Comb tooth part (28), be tubular structure, the periphery that is arranged at described burner inner liner rear wall basin (27) Nei，Qi one end and described burner inner liner rear wall basin (27) perforate end is fixed, and its other end extends towards the enlarging direction of described burner inner liner rear wall basin (27).
4. combustion chamber flame drum according to claim 3, is characterized in that,
On outer wall after described burner inner liner (21), offer circle first blending hole (211), circle second blending hole (212), circle first plate hole (213), a circle Cooling Holes (214) and the circle crack arrest groove (215) along its contour, arranged;
Each crack arrest groove (215) in described circle crack arrest groove (215) all from described burner inner liner the edge of the flared end of outer wall (21) along the radially extension of outer wall (21) after described burner inner liner;
The perforate end of described circle first plate hole (213), described circle first blending hole (211), described circle second blending hole (212) and a described circle crack arrest groove (215) outer wall (21) from described burner inner liner is arranged in after described burner inner liner on outer wall (21) successively along its flared end;
Each Cooling Holes (214) in a described circle Cooling Holes (214) is arranged between adjacent two crack arrest grooves (215) of a described circle crack arrest groove (215).
5. combustion chamber flame drum according to claim 3, is characterized in that,
On described gas conduct pipe (22), offer circle second plate hole (221) penetrating along the described one group of support plate of confession (23) of its contour layout.
6. combustion chamber flame drum according to claim 3, is characterized in that,
On described burner inner liner rear wall (26), offer and be a plurality of first fish scale holes (261) of fish scale-shaped structure, circle first primary holes (262) of arranging along its contour and the sparking plug hole (263) of passing for sparking plug;
Described sparking plug hole (263) overlaps with the primary holes (262) in described circle first primary holes (262).
7. combustion chamber flame drum according to claim 3, is characterized in that,
On described burner inner liner rear wall basin (27), offer circle second Cooling Holes (271) of arranging along its contour.
8. according to the combustion chamber flame drum described in any one in claim 3 to 7, it is characterized in that, described burner inner liner rear wall assembly (2) also comprises:
Rear wall air ring (200), be sheathed on outside described burner inner liner rear wall basin (27), the bowl structure that is the middle perforate adapting with described burner inner liner rear wall basin (27), the inwall of the edge of its flared end and described burner inner liner rear wall (26) perforate end is fixed, and the edge of described burner inner liner rear wall basin (27) flared end and the inwall of described rear wall air ring (200) are fixed.
9. combustion chamber flame drum according to claim 8, is characterized in that, described burner inner liner rear wall assembly (2) also comprises:
Intermediate sleeve (210), is arranged between described gas conduct pipe (22) and described comb tooth part (28), and fixing with described gas conduct pipe (22).
10. combustion chamber flame drum according to claim 9, is characterized in that, described burner inner liner rear wall assembly (2) also comprises:
The first support ring (220), the class bowl structure of perforate in the middle of being, be arranged between described intermediate sleeve (210) and described comb tooth part (28), its flared end and described intermediate sleeve (210) are fixing, and its perforate end and described comb tooth part (28) are fixing.
11. combustion chamber flame drums according to claim 10, is characterized in that, described burner inner liner rear wall assembly (2) also comprises:
The second support ring (230), the class bowl structure of perforate in the middle of being, be sheathed on outside the perforate end of outer wall (21) after described burner inner liner, after its perforate end and described burner inner liner, the outer peripheral face of the perforate end of outer wall (21) is fixed, and its flared end is connected with described the second mount pad (20).
12. combustion chamber flame drums according to claim 11, is characterized in that, described burner inner liner rear wall assembly (2) also comprises:
The 3rd support ring (240), V-shaped along its section radially, be arranged between described the second support ring (230) and described nozzle ring (25), one side and described the second support ring (230) are fixing, and its opposite side and described nozzle ring (25) are fixing.
13. combustion chamber flame drums according to claim 2, is characterized in that, described burner inner liner antetheca assembly (1) comprising:
Burner inner liner antetheca (11), the bowl structure of perforate in the middle of being, its perforate end is sheathed on outside described the first mount pad (10) and fixes with the outer peripheral face of described the first mount pad (10), on the outer peripheral face of its flared end, near its edge, be provided with one group of described intermediate plate (100) of arranging along its contour, described burner inner liner antetheca (11) is connected with described burner inner liner rear wall (26) by described intermediate plate (100).
14. combustion chamber flame drums according to claim 13, is characterized in that,
On described burner inner liner antetheca (11), offer circle second primary holes (112) that is a plurality of second fish scale holes (111) of fish scale-shaped structure and arranges along its contour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320348893.XU CN203395943U (en) | 2013-06-18 | 2013-06-18 | Combustion chamber flame tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320348893.XU CN203395943U (en) | 2013-06-18 | 2013-06-18 | Combustion chamber flame tube |
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| CN203395943U true CN203395943U (en) | 2014-01-15 |
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| CN201320348893.XU Expired - Lifetime CN203395943U (en) | 2013-06-18 | 2013-06-18 | Combustion chamber flame tube |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315542A (en) * | 2014-10-28 | 2015-01-28 | 常州兰翔机械有限责任公司 | Flame tube of gas turbine engine and processing method of flame tube |
| CN106351747A (en) * | 2016-11-21 | 2017-01-25 | 中国航空动力机械研究所 | Fuel supply system and fuel supply method for small-power gas-turbine engine |
| CN108105802A (en) * | 2017-12-14 | 2018-06-01 | 天津成立航空技术有限公司 | A kind of flow path designs method of term durability gas turbine flame barrel combustion header |
| CN108692332A (en) * | 2017-04-03 | 2018-10-23 | 通用电气公司 | Film starting device in the burner of gas-turbine unit |
| CN115164236A (en) * | 2022-06-15 | 2022-10-11 | 中科航星科技有限公司 | Heat insulation assembly suitable for oil thrower disc combustion chamber |
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2013
- 2013-06-18 CN CN201320348893.XU patent/CN203395943U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315542A (en) * | 2014-10-28 | 2015-01-28 | 常州兰翔机械有限责任公司 | Flame tube of gas turbine engine and processing method of flame tube |
| CN104315542B (en) * | 2014-10-28 | 2016-06-08 | 常州兰翔机械有限责任公司 | A kind of gas turbine engine burner inner liner and working method thereof |
| CN106351747A (en) * | 2016-11-21 | 2017-01-25 | 中国航空动力机械研究所 | Fuel supply system and fuel supply method for small-power gas-turbine engine |
| CN106351747B (en) * | 2016-11-21 | 2018-03-09 | 中国航空动力机械研究所 | A kind of fuel oil supply system and method for small-power gas-turbine unit |
| CN108692332A (en) * | 2017-04-03 | 2018-10-23 | 通用电气公司 | Film starting device in the burner of gas-turbine unit |
| CN108105802A (en) * | 2017-12-14 | 2018-06-01 | 天津成立航空技术有限公司 | A kind of flow path designs method of term durability gas turbine flame barrel combustion header |
| CN115164236A (en) * | 2022-06-15 | 2022-10-11 | 中科航星科技有限公司 | Heat insulation assembly suitable for oil thrower disc combustion chamber |
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