CN206073137U - A kind of gasifier section - Google Patents
A kind of gasifier section Download PDFInfo
- Publication number
- CN206073137U CN206073137U CN201620963214.3U CN201620963214U CN206073137U CN 206073137 U CN206073137 U CN 206073137U CN 201620963214 U CN201620963214 U CN 201620963214U CN 206073137 U CN206073137 U CN 206073137U
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- nozzle
- fuel
- oxidant
- hole
- ejector filler
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Abstract
A kind of gasifier section, including：Ejector filler (1), oxidant collector (2), fuel collector (3), body portion (4)；With fuel collector (3) on ejector filler (1), ejector filler (1) is connected oxidant collector (2) with body portion (4).Oxidant and fuel pass through the oxidant collector (2) of annular, fuel collector (3) respectively into ejector filler (1), double coaxial nozzles (5) again in ejector filler (1), coaxial DC formula nozzle (6) atomization after-combustion, the product after burning enter body portion (4).This utility model solves the problems, such as ignition delay time length, igniting reliability is low and gas outlet temperature is uneven, shortens firing delay from structure design, improves the uniformity of igniting reliability and gas outlet temperature.
Description
Technical field
This utility model is related to a kind of gasifier section.
Background technology
Gasifier section is widely used in Aero-Space, civilian, igniting and field of combustion technology.Existing combustion gas occurs
The ejector filler design of device mostly is coaxial DC formula nozzle, ignition flame diffusion tubular construction, affects the transmission of ignition flame energy,
Its ignition delay time is relatively long, and igniting reliability is relatively low.And after the single cylinder segment structure in combustor downstream causes burning
Product have little time fully blending and be directly entered downstream, cause poor temperature uniformity, affect the normal work of downstream components.
Nozzle in existing gasifier section can typically adopt several homostructural nozzles, such as coaxial single flow to spray
Mouth, the combustor usually cylindrical section with certain length.The shortcoming of coaxial DC formula nozzle is that ignition ability is weaker, and igniting is prolonged
Time is longer late.And combustion product is directly entered downstream work by the combustor of cylinder segment structure, combustion product does not often have
Time is sufficiently blended so that fuel gas temperature is uneven, and then produces impact to the work of downstream other assemblies.
Utility model content
The technical problems to be solved in the utility model is：Overcome the deficiencies in the prior art, there is provided a kind of combustion gas occurs dress
Put, solve the problems, such as that ignition delay time length, igniting reliability are low and gas outlet temperature is uneven, shorten from structure design
Firing delay, improves the uniformity of igniting reliability and gas outlet temperature.
The technical scheme adopted by this utility model is：A kind of gasifier section, including：Ejector filler, oxidant set
Device, fuel collector, body portion；Oxidant collector, fuel collector are arranged on ejector filler；Ejector filler includes double coaxial sprays
Mouth, coaxial DC formula nozzle and flame spread pipe；Flame spread pipe is arranged in the middle part of ejector filler, along spray around flame spread pipe
Device is circumferentially distributed installing hole, double coaxial nozzles in the installing hole enclosed near flame spread pipe one, coaxial DC formula
Nozzle is arranged in remaining installing hole；Double coaxial nozzles include nozzle under oxidant nozzle, fuel top nozzle and fuel；Oxidant
Nozzle is cylinder, has the through hole for becoming aperture in the middle part of oxidant nozzle, and oxidant is entered from the minimum one end in aperture；Spray on fuel
Mouth is cylindrical shape, and oxidant outer nozzle wall has ledge structure, is stuck at fuel top nozzle inwall ledge structure；Outside oxidant nozzle
The big end of wall is adjacent to fuel top nozzle inwall, there is gap, fuel top nozzle side between outer wall small end and fuel top nozzle inwall
Through hole is provided with wall radially, fuel is by the gap between through hole incoming fuel top nozzle and oxidant nozzle；Spray under fuel
Mouth is cylindrical shape, and fuel top nozzle outer wall ledge structure is stuck under fuel at nozzle inner walls ledge structure；Nozzle inside diameter under fuel
Big end is adjacent to fuel top nozzle outer wall, there is gap, fuel under fuel between nozzle inside diameter small end and fuel top nozzle outer wall
Lower nozzle wall is radially provided with through hole, and fuel passes through the gap under through hole incoming fuel top nozzle and fuel between nozzle；Spray
Note device is connected with body portion.
The body portion includes straightway, bend loss, combustion gas four-way；Ejector filler is connected with straightway, and straightway, bend loss are equal
For tubular structure, straightway is connected with bend loss one end, and the bend loss other end connects spherical combustion gas four-way.The bend loss is curved
Bent angle is 90 °.
The through hole for becoming aperture in the middle part of the oxidant nozzle includes the different through hole of three sections of diameters, and oxidant outer nozzle wall is big
Hold corresponding entrance through-hole diameter minimum, stage casing through-hole diameter is more than entrance through-hole diameter, outlet section through-hole diameter is maximum.
Described pair of coaxial nozzle has two, and two pairs between coaxial nozzle installing hole center and the line at ejector filler center
Angle is obtuse angle.The ejector filler is connected with straightway by flange.The oxidant collector or fuel collector are annulus
Shape.Flange on the combustion gas four-way for being connected with exterior line.
This utility model advantage compared with prior art is：
(1) combination of this utility model using single coaxial coaxial DC formula nozzle+bis- coaxial nozzles, while having played same
The advantage of axle single flow nozzle and double coaxial nozzles, that is, shorten firing delay and in turn ensure that flameholding, solves combustion in the past
Burn the short shortcoming of device ignition delay time.
(2) Position Design of this utility model flame spread pipe and two double coaxial nozzles further increases the expansion of flame
Scattered property, greatly improves the reliability of whole igniter；The spherical four-way in body portion and bend design, change conventional combustor
Single cylindrical structural, makes combustion gas fully blend in four-way and elbow part, improves outlet temperature uniformity.
(3) this utility model is on rocket engine, drives turbine acting, its igniting reliability and combustion stability and
The uniformity of outlet temperature directly determines the reliability of whole engine system operation, in particular improves doing for downstream turbine
Function power and functional reliability.
Description of the drawings
Fig. 1 is generator population structure；
Fig. 2 is ejector filler nozzle arrangement schematic diagram；
Fig. 3 is double coaxial nozzle structure charts；
Fig. 4 is generator body portion structural representation.
Specific embodiment
As shown in figure 1, a kind of gasifier section, including：Ejector filler 1, oxidant collector 2, fuel collector 3, body
Portion 4；Wherein, ejector filler 1 is welding with oxidant collector 2, fuel collector 3, is connected by flange with body portion.Oxidant
Collector 2 is arranged on ejector filler 1 with fuel collector 3.
In the course of work, oxidant and fuel are entered by the oxidant collector 2 of annular, fuel collector 3 respectively
Ejector filler 1, then the atomization after-combustion of the double coaxial nozzles 5 in ejector filler 1, coaxial DC formula nozzle 6, the product after burning enter
Enter body portion 4.
1 structure of ejector filler is as shown in Fig. 2 be made up of double coaxial nozzles 5, coaxial DC formula nozzle 6 and flame spread pipe 7.
2 double coaxial nozzles 5, two double 5 installing hole centers of coaxial nozzle and 1 center of ejector filler are arranged near flame spread pipe 7
Angle between line is obtuse angle, and remaining is coaxial DC formula nozzle 6, can take into account starting ignition performance by this kind of layout
With stable state combustion performance, the burning tissues of shorter firing delay and efficient stable are obtained.In addition, flame spread pipe 7
Setting can improve the momentum of ignition flame and extend transversely through ability, be conducive to ignition energy to transmit to propellant, shorten igniting
Postpone.Flame spread pipe 7 is arranged in the middle part of ejector filler 1, and 7 surrounding of flame spread pipe has an installing hole along ejector filler 1 is circumferentially distributed, double
Coaxial nozzle 5 in the installing hole enclosed near flame spread pipe 7 one, install installed in remaining by coaxial DC formula nozzle 6
In hole.
As shown in figure 3, double coaxial nozzles 5 are made up of nozzle 10 under oxidant nozzle 8, fuel top nozzle 9 and fuel.Oxidation
Agent nozzle 8 adopts single flow structure, and oxidant through hole directly from oxidant nozzle 8 is axially through propellant top nozzle 9 is adopted
With crevice throttle, under propellant, nozzle 10 is throttled using ingate, and radial hole of the fuel respectively from the two nozzles passes through.Oxygen
Agent first in the exit of fuel top nozzle 9 and fuel blending, then by the outlet of nozzle under fuel 10 again with it is another
Stock fuel blending, oxidant are blended through two-stage with propellant and ignition ability are strengthened.Oxidant nozzle 8 is cylinder, oxygen
There is the through hole for becoming aperture in the middle part of agent nozzle 8, oxidant is entered from the minimum one end in aperture, becomes aperture in the middle part of oxidant nozzle 8
Through hole include the different through hole of three sections of diameters, the corresponding entrance through-hole diameter in the big end of 8 outer wall of oxidant nozzle is minimum, stage casing
Through-hole diameter is more than entrance through-hole diameter, and outlet section through-hole diameter is maximum；Fuel top nozzle 9 be cylindrical shape, oxidant nozzle 8
Outer wall has ledge structure, is stuck at 9 inwall ledge structure of fuel top nozzle；The big end of 8 outer wall of oxidant nozzle and fuel top nozzle 9
Inwall is adjacent to, and there is gap, be radially provided with logical on 9 side wall of fuel top nozzle between 9 inwall of outer wall small end and fuel top nozzle
Hole, fuel is by the gap between through hole incoming fuel top nozzle 9 and oxidant nozzle 8；Under fuel, nozzle 10 is cylindrical shape, is fired
Material 9 outer wall ledge structure of top nozzle is stuck under fuel at 10 inwall ledge structure of nozzle；The big end of 10 internal diameter of nozzle and combustion under fuel
Material 9 outer wall of top nozzle is adjacent to, and there is gap under fuel between 10 internal diameter small end of nozzle and 9 outer wall of fuel top nozzle, sprays under fuel
10 side wall of mouth is radially provided with through hole, and fuel passes through the gap under through hole incoming fuel top nozzle 9 and fuel between nozzle 10.
What by more than, the design of double coaxial+coaxial DC formula nozzles and flame spread pipe 7 can greatly improve igniting can
By property.
Body portion 4 is as shown in figure 4, be made up of straightway 11, bend loss 12 and combustion gas four-way 13；Ejector filler 1 by flange with
Straightway 11 connects, and straightway 11, bend loss 12 are tubular structure, and straightway 11 is connected with 12 one end of bend loss, bend loss
12 other ends connect spherical combustion gas four-way 13, the flange on combustion gas four-way 13 for being connected with exterior line.Combustion gas is by straight
After line segment 11, also need by downstream components are just entered after 90 degree of bend pipes 12 and spherical four-way 13, the design can ensure that combustion gas exists
Can sufficiently burn into before downstream components, blend, it is ensured that the uniformity of final fuel gas temperature.
This utility model unspecified part belongs to technology as well known to those skilled in the art.
Claims (8)
1. a kind of gasifier section, it is characterised in that include：Ejector filler (1), oxidant collector (2), fuel collector
(3), body portion (4)；Oxidant collector (2), fuel collector (3) are on ejector filler (1)；Ejector filler (1) is including double same
Axle nozzle (5), coaxial DC formula nozzle (6) and flame spread pipe (7)；Flame spread pipe (7) in the middle part of ejector filler (1),
There is an installing hole along ejector filler (1) is circumferentially distributed around flame spread pipe (7), double coaxial nozzles (5) are installed in expanding near flame
Dissipate in the installing hole of (7) one circle of pipe, coaxial DC formula nozzle (6) is in remaining installing hole；Double coaxial nozzles (5) are including oxygen
Nozzle (10) under agent nozzle (8), fuel top nozzle (9) and fuel；Oxidant nozzle (8) is cylinder, oxidant nozzle (8)
There is the through hole for becoming aperture at middle part, and oxidant is entered from the minimum one end in aperture；Fuel top nozzle (9) is cylindrical shape, oxidant spray
Mouth (8) outer wall has ledge structure, is stuck at fuel top nozzle (9) inwall ledge structure；The big end of oxidant nozzle (8) outer wall and combustion
Material top nozzle (9) inwall is adjacent to, and there is gap, fuel top nozzle (9) side wall between outer wall small end and fuel top nozzle (9) inwall
On be radially provided with through hole, fuel is by the gap between through hole incoming fuel top nozzle (9) and oxidant nozzle (8)；Fuel
Lower nozzle (10) is cylindrical shape, and fuel top nozzle (9) outer wall ledge structure is stuck at nozzle under fuel (10) inwall ledge structure；
Under fuel, the big end of nozzle (10) internal diameter is adjacent to fuel top nozzle (9) outer wall, under fuel on nozzle (10) internal diameter small end and fuel
There is gap between nozzle (9) outer wall, nozzle (10) side wall is radially provided with through hole under fuel, fuel passes through through hole incoming fuel
Gap under top nozzle (9) and fuel between nozzle (10)；Ejector filler (1) is connected with body portion (4).
2. a kind of gasifier section according to claim 1, it is characterised in that：The body portion (4) is including straightway
(11), bend loss (12), combustion gas four-way (13)；Ejector filler (1) is connected with straightway (11), straightway (11), bend loss (12)
Tubular structure is, straightway (11) is connected with bend loss (12) one end, bend loss (12) other end connects spherical combustion gas four
Logical (13).
3. a kind of gasifier section according to claim 2, it is characterised in that：Bend loss (12) angle of bend is
90°。
4. a kind of gasifier section according to claim 1 and 2, it is characterised in that：In the middle part of the oxidant nozzle (8)
The through hole for becoming aperture includes the different through hole of three sections of diameters, the corresponding entrance through-hole diameter in the big end of oxidant nozzle (8) outer wall
Minimum, stage casing through-hole diameter are more than entrance through-hole diameter, and outlet section through-hole diameter is maximum.
5. a kind of gasifier section according to claim 4, it is characterised in that：Described pair of coaxial nozzle (5) has two,
Two double angles between coaxial nozzle (5) installing hole center and the line at ejector filler (1) center are obtuse angle.
6. a kind of gasifier section according to claim 1 and 2, it is characterised in that：The ejector filler (1) is by flange
It is connected with straightway (11).
7. a kind of gasifier section according to claim 1 and 2, it is characterised in that：The oxidant collector (2) or
Fuel collector (3) is annular.
8. a kind of gasifier section according to claim 1 and 2, it is characterised in that：Use on the combustion gas four-way (13)
In the flange being connected with exterior line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620963214.3U CN206073137U (en) | 2016-08-26 | 2016-08-26 | A kind of gasifier section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620963214.3U CN206073137U (en) | 2016-08-26 | 2016-08-26 | A kind of gasifier section |
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| Publication Number | Publication Date |
|---|---|
| CN206073137U true CN206073137U (en) | 2017-04-05 |
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ID=58432543
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620963214.3U Active CN206073137U (en) | 2016-08-26 | 2016-08-26 | A kind of gasifier section |
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| CN (1) | CN206073137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196171A (en) * | 2016-08-26 | 2016-12-07 | 北京航天动力研究所 | A kind of gasifier section |
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2016
- 2016-08-26 CN CN201620963214.3U patent/CN206073137U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106196171A (en) * | 2016-08-26 | 2016-12-07 | 北京航天动力研究所 | A kind of gasifier section |
| CN106196171B (en) * | 2016-08-26 | 2019-04-09 | 北京航天动力研究所 | A kind of gasifier section |
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