CN208295959U - A kind of self-priming air-assisted atomization dual fuel nozzle - Google Patents
A kind of self-priming air-assisted atomization dual fuel nozzle Download PDFInfo
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- CN208295959U CN208295959U CN201820731468.1U CN201820731468U CN208295959U CN 208295959 U CN208295959 U CN 208295959U CN 201820731468 U CN201820731468 U CN 201820731468U CN 208295959 U CN208295959 U CN 208295959U
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- 239000000446 fuel Substances 0.000 title claims abstract description 143
- 238000000889 atomisation Methods 0.000 title claims abstract description 29
- 230000009977 dual effect Effects 0.000 title claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 113
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 22
- 238000009826 distribution Methods 0.000 claims abstract description 20
- 238000001816 cooling Methods 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000002737 fuel gas Substances 0.000 claims description 30
- 239000007789 gas Substances 0.000 claims description 30
- 230000008021 deposition Effects 0.000 claims description 8
- 230000016507 interphase Effects 0.000 claims description 6
- 239000003595 mist Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 9
- 239000000306 component Substances 0.000 description 30
- 239000007921 spray Substances 0.000 description 6
- 239000010779 crude oil Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Nozzles For Spraying Of Liquid Fuel (AREA)
Abstract
The utility model belongs to gas-turbine plant technical field, swirling flow atomizing component is assisted, component is detachably fixed, prevents carbon distribution air cooling component and nozzle body more particularly to a kind of self-priming air-assisted atomization dual fuel nozzle, including liquid fuel swirling flow atomizing component, air；Liquid fuel swirling flow atomizing component includes liquid fuel cyclone and liquid fuel spout；It includes atomizing air cyclone and air port that air, which assists swirling flow atomizing component,；Liquid fuel cyclone is installed in atomizing air cyclone；Detachably being fixed component includes capping, gasket and plug screw；Preventing carbon distribution air cooling component includes the fin and finned runner of heat-insulated inner cover, nozzle body front；Gas liquid two purpose filter core and detachable stop are separately installed in the liquid fuel inlet port of liquid fuel interface and the atomizing air inlets of atomizing air interface.When solving the problems, such as the operation of gas turbine slow train operating condition because caused by liquid fuel atomizing effect is bad efficiency of combustion it is too low.
Description
Technical field:
The utility model belongs to gas-turbine plant technical field, and in particular to a kind of double combustions of self-priming air-assisted atomization
Expect nozzle.
Background technique:
With the continuous propulsion of China's "Oceanic" strategy, Crude oil from CNOOC exploration and exploitation dynamics are continued to increase, and Crude oil from CNOOC produces
Amount improves rapidly.During crude oil extraction, it is often accompanied by a large amount of oil field gas output, this associated gas has inflammable easy
It is quick-fried to be not easy the characteristics of storing and transporting, processing will be directly used at the beginning of exploiting certainly due to safety concerns, causes serious energy
Source waste, national marine strategy is to solving the problems, such as that this proposes urgent demand.Dual-fuel gas turbine is exactly that one kind can have
Effect solves the problems, such as this power-equipment, power can not only be provided for crude oil development, and oil field gas can be used for gas
State fuel works, and in non-stop-machine situation, realizes that the undisturbed between former liquid fuel and oil field gas is cut online
It changes, improves gas turbine to the adaptability of fuel, be effectively utilized oil field gas, solve difference during crude oil development
Pluralities of fuel demand under state.
Dual fuel nozzle is the most important core component of dual-fuel gas turbine, as the "Oceanic" strategy is to high power combustion gas wheel
The continuous promotion of machine demand, to the design of nozzle, higher requirements are also raised.Meeting high power then needs more liquid to fire
Doses, therefore the aperture design of nozzle vent is larger, just brings liquid fuel atomizing effect under slow train working condition poor in this way, combustion
Phenomena such as burning is uneven, and carbon distribution is serious, and then influence efficiency of combustion, causes black smoke from exhaust, the even whole combustion of the service life of nozzle
The normal operation of gas-turbine is all seriously threatened.At present using more solution be exactly use Double liquid state fuel road, if
It is calculated as different flow, to meet gas turbine from starting slow train to high operating condition different phase liquid fuel amount demand, but thus
Bring corollary equipment increases, and subsystem is complicated, seriously affects the innate advantage that gas turbine is small in size, light-weight, to double
The application of fuel turbine brings limitation.
Utility model content:
The purpose of the utility model is to provide one kind, and gas turbine application liquid fuel can be made in slow train operating condition and high operating condition
Efficient burning and the self-priming air-assisted atomization dual fuel nozzle that fuel gas uses can be taken into account in operational process, to solve
When gas turbine slow train operating condition is run because liquid fuel atomizing effect it is bad caused by the too low problem of efficiency of combustion, and to fire more
Material mode widens gas turbine application range.
The technical solution adopted in the utility model are as follows: a kind of self-priming air-assisted atomization dual fuel nozzle, including liquid
Fuel swirl atomizing component, air auxiliary swirling flow atomizing component, be detachably fixed component, prevent carbon distribution air cooling component, in
Portion's side cover, top side cover, outer cover, fuel gas interface, liquid fuel interface and atomizing air interface and nozzle body；The liquid
State fuel swirl atomizing component includes liquid fuel cyclone and liquid fuel spout；The air assists swirling flow atomizing component packet
Include atomizing air cyclone and air port；The liquid fuel cyclone is installed in atomizing air cyclone；It is described removable
Unloading and being fixed component includes capping, gasket and plug screw；It is described prevent carbon distribution air cooling component from including heat-insulated inner cover, nozzle body before
The fin in portion and finned runner；The liquid fuel inlet port of the liquid fuel interface and the atomizing air of atomizing air interface enter
Gas liquid two purpose filter core and detachable locating snap ring are separately installed in mouthful.
Further, the outer cover and heat-insulated inner cover weld, and outer cover is equipped with 10 gaseous fuel outlets, and fuel gas goes out
The angle of the axis direction of the axis direction and liquid fuel spout of mouth is 30 °；The gaseous fuel outlet every 2 are 1 group, often
2 gaseous fuel outlets of group are circumferentially evenly distributed at 12.5 ° of angles, and around the central axis of liquid fuel spout.
Further, the liquid fuel cyclone is nested in the inner cavity of atomizing air cyclone by grafting, and the two is logical
It crosses and is detachably fixed component and is fixed in nozzle body in the way of rated moment；It is described to be detachably fixed component
Plug screw uses the connection type of double end straight thread, and one end is fixed with nozzle body, is compressed with fashion of extrusion and fixes liquid combustion
Expect that cyclone and atomizing air cyclone, the other end and gasket and capping are connected to the end of nozzle body in the way of rated moment
Face collectively constitutes liquid fuel swirl channel and auxiliary swirling flow atomizing air duct；The liquid fuel cyclone and atomizing space
The inner wall of cyclonic current device forms the second liquid fuel channel.
Further, the nozzle body is equipped with the first liquid fuel channel and the first atomizing air channel, nozzle housing
The inner cavity inner wall of body and atomizing air cyclone outer wall face form the second atomizing air channel.
Further, the top side cover, middle part side cover and nozzle body form the first fuel gas channel, the second gas
State fuel channel and third fuel gas channel.
Further, the heat-insulated inner cover is equipped with anti-carbon deposition air intake and alternate row vertical with anti-carbon deposition air intake
6 the 4th fuel gas channels of cloth.
Further, the eddy flow slot rotation direction phase of the eddy flow slot rotation direction of the liquid fuel cyclone and atomizing air cyclone
Together.
Further, the fuel gas interface, liquid fuel interface and atomizing air interface use inner conical surface external screw thread
Sealed connection mode.
Further, described to be detachably fixed component by capping gasket and plug screw by the way of double end straight thread
Progress is connect with nozzle body, facilitates the finishing, cleaning and replacement of core work component, shortens the nozzle lead time, extends spray
Mouth service life.Described prevents carbon distribution air cooling component to be fixed on by the way of welding by the heat-insulated inner cover with normal direction air inlet
Nozzle body front forms finned air cooling channel, and core work part temperatures are effectively reduced；The fuel gas supply is logical
Road and heat-insulated inner cover normal direction import interphase distribution are attached by the way of welding with outer cover, can be required in the amount of furnishing good supplies to
While effectively reduce entire nozzle the space occupied.
The utility model has the beneficial effects that air auxiliary swirling flow atomizing design is bound effectively to liquid fuel road, it is special
Point is actively to feed assisted atomization air by nozzle air road under slow train operating condition, improves ignition performance and efficiency of combustion at this time；
High operating condition forms negative pressuren zone by the strong eddy flow of liquid fuel, and the indoor air that will burn is automatically drawn into nozzle under differential pressure action
Air road strengthens the atomization of liquid fuel, further increases efficiency of combustion, can be under single liquid fuel travel permit part easily and effectively
Ground solves the problems, such as to be atomized under igniting and slow train operating condition ineffective, while meeting double fuel use demand, has important application
Value.
It is described to be detachably fixed component and carried out and sprayed by the way of double end straight thread by capping gasket and plug screw
The connection of mouth shell, facilitates the finishing, cleaning and replacement of core work component, shortens the nozzle lead time, extends nozzle and uses the longevity
Life.Described prevents carbon distribution air cooling component to be fixed on nozzle body by the way of welding by the heat-insulated inner cover with normal direction air inlet
Front forms finned air cooling channel, and core work part temperatures are effectively reduced；The fuel gas feed path with it is heat-insulated
Inner cover normal direction import interphase distribution is attached by the way of welding with outer cover, can be had while the amount of furnishing good supplies to requires
Effect reduces entire nozzle the space occupied.Its major advantage is as follows:
(1), it is empty to save installation using the arrangement to misplace to row for the liquid fuel interface and atomizing air interface
Between；
(2), the dual-purpose common filter group of air-liquid is fitted in the liquid fuel inlet port and atomizing air inlets channel
Part can effectively remove the impurity come in flow medium, improve the reliability and service life of nozzle, and solid by detachable locating snap ring
It is fixed, it is convenient for changing cleaning；
(3), it is externally threaded to be all made of inner conical surface for the liquid fuel interface, atomizing air interface and gaseous state fuel interface
Sealed connection mode, securely and reliably, it is convenient to dismount；
(4), the gaseous fuel outlet axis direction and liquid fuel spout axis direction are at 30 ° of angles, fuel gas
Export volume is 10, every 2 one group, circumferentially uniformly distributed around liquid fuel spout central axis at 12.5 ° of angles, be can get good
Combustion efficiency；
(5), the heat-insulated inner cover using fuel gas axial passage direction and prevents carbon distribution cooling air inlet direction
Orthogonal and interphase distribution design form, effectively save space；
(6), the nozzle body front uses finned runner design, can effectively improve nozzle arrangements intensity i.e. resistance
Enhanced heat exchange while shape ability keeps nozzle interior low temperature, prolongs the service life；
(7), the eddy flow slot rotation direction of the liquid fuel cyclone and the eddy flow slot rotation direction of atomizing air cyclone are identical,
Guarantee good air-flow shear action, reaches assisted atomization effect.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the stereoscopic schematic diagram of the utility model；
Fig. 3 is the schematic cross-section of M-M in Fig. 1；
Fig. 4 is the partial enlarged view of W in Fig. 1；
Fig. 5 is the schematic cross-section of N-N in Fig. 1.
Specific embodiment:
Referring to each figure, a kind of self-priming air-assisted atomization dual fuel nozzle, including liquid fuel swirling flow atomizing component, sky
Gas auxiliary swirling flow atomizing component is detachably fixed component, prevents carbon distribution air cooling component, is middle part side cover 3, top side cover 5, outer
Cover 14, fuel gas interface 4, liquid fuel interface 1 and atomizing air interface 2 and nozzle body 8；The liquid fuel eddy flow mist
Changing component includes liquid fuel cyclone 12 and liquid fuel spout 17；The air auxiliary swirling flow atomizing component includes atomizing space
Cyclonic current device 13 and air port 6；The liquid fuel cyclone 12 is installed in atomizing air cyclone 13；It is described detachable
Being fixed component includes capping 10, gasket 9 and plug screw 11；It is described prevent carbon distribution air cooling component include heat-insulated inner cover 7, nozzle housing
The fin 32 and finned runner 31 of 8 front of body；The liquid fuel inlet port 23 and atomizing air interface of the liquid fuel interface 1
Gas liquid two purpose filter core 28 and detachable locating snap ring 29 are separately installed in 2 atomizing air inlets 24；The outer cover 14 with it is heat-insulated
Inner cover 7 welds, and outer cover 14 is equipped with 10 gaseous fuel outlets 15, and the axis direction and liquid fuel of gaseous fuel outlet 15 spray
The angle of the axis direction of mouth 17 is 30 °；The gaseous fuel outlet 15 every 2 are 1 group, every group of 2 gaseous fuel outlets
15 at 12.5 ° of angles, and circumferentially uniformly distributed around the central axis of liquid fuel spout 17；The liquid fuel cyclone 12 passes through grafting
It is nested in the inner cavity of atomizing air cyclone 13, the two is fixed on by way of being detachably fixed component by rated moment
In nozzle body 8；The plug screw 11 for being detachably fixed component uses the connection type of double end straight thread, one end and spray
Mouth shell 8 is fixed, and liquid fuel swirl device 12 and atomizing air cyclone 13, the other end and pad are compressed and fixed with fashion of extrusion
The end faces that piece 9 and capping 10 are connected to nozzle body 8 in the way of rated moment collectively constitute liquid fuel swirl channel and auxiliary
Help swirling flow atomizing air duct；The inner wall of the liquid fuel cyclone 12 and atomizing air cyclone 13 forms the second liquid
Fuel channel 34；The nozzle body 8 is equipped with the first liquid fuel channel 25 and the first atomizing air channel 26, nozzle body
8 inner cavity inner wall and 13 outside wall surface of atomizing air cyclone forms the second atomizing air channel 33；The top side cover 5,
Middle part side cover 3 and nozzle body 8 form the first fuel gas channel 20, the second fuel gas channel 21 and third fuel gas
Channel 22；The heat-insulated inner cover 7 is equipped with the 6 of anti-carbon deposition air intake 27 and interphase distribution vertical with anti-carbon deposition air intake 27
A 4th fuel gas channel 30；The eddy flow slot rotation direction of the liquid fuel cyclone 12 and the eddy flow of atomizing air cyclone 13
Slot rotation direction is identical；The fuel gas interface 4, liquid fuel interface 1 and atomizing air interface 2 are externally threaded close using inner conical surface
Seal connection type.
Self-priming air-assisted atomization dual fuel nozzle specific working mode is described as follows:
As shown in Figure 1, liquid fuel cyclone 12 is installed on the inner cavity of atomizing air cyclone 13 by way of grafting,
The second liquid fuel channel 34 is collectively formed with inner wall surface thereof, plug screw 11 passes through the connection type of double end straight thread, one end and spray
Mouth shell 8 is fixed, and then liquid fuel swirl device 12 and atomizing air cyclone 13 are compressed and fixed with fashion of extrusion, to guarantee
Good leakproofness, the other end are then connected to 8 end face of nozzle body with gasket 9 and capping 10 in the way of rated moment, jointly
Form liquid fuel swirl channel and auxiliary swirling flow atomizing air duct.
As shown in Fig. 2, liquid fuel passes through gas liquid two purpose by liquid fuel inlet port 23 when using liquid fuel work
28 filtering and impurity removing of filter core enters the first liquid fuel runner 25, flows through the second liquid fuel channel 34 and eddy flow slot reaches eddy flow shape
State enters to combustion space and compressed air is mixed and burned finally by the spouting formation atomizer (atomizing) cone of liquid fuel spout 17.?
During this, gaseous fuel inlet port 19 feeds while compressed air is purged and cools down to nozzle body, assisted atomization
Air road has the different working condition of following two:
1., when gas turbine is when light a fire operating condition and slow train operating condition are run, assisted atomization air is by atomizing air inlets 24
It actively feeds, atomizing air interface 2 uses the externally threaded sealed connection mode of inner conical surface, crosses and filters out by gas liquid two purpose filter core 28
It is miscellaneous, enter to the first atomizing air channel 26, using by nozzle body 8 inner cavity inner wall and atomizing air cyclone 12 outside
The second atomizing air channel 33 and eddy flow slot that wall surface is constituted reach eddy flow state, eventually pass through atomizing air outlet 18 and atomization
6 rotating jet of air port and go out, it is broken to carry out rotational shear auxiliary droplet to liquid fuel atomizer (atomizing) cone liquid film, reaches good mist
Change effect, solves the problems, such as that liquid fuel atomization quality is bad when gas turbine slow train operating condition and igniting operating condition operation；
2., when gas turbine is run under the conditions of high operating condition, liquid fuel supply is larger, passes through liquid fuel spout
After the strong eddy flow of 17 high speeds sprays, very strong negative pressuren zone can be formed after the spout, and then the atomizing air that will cause auxiliary goes out
Pressure near 18 at mouthful is lower than the pressure in combustion chamber shell body, and the compressed air in combustion chamber shell body will be in pressure difference at this time
" automatic " is entered by atomizing air inlets 2 under effect, the second atomizing air channel 33 through the first atomizing air channel 26, eddy flow
And gone out after eddy flow slot rotational flow strengthening by atomizing air outlet 18 and 6 rotating jet of atomizing air spout, liquid fuel is atomized
It is broken to bore liquid film progress rotational shear auxiliary droplet, completes atomizing air self-priming assisted atomization process, reduces atomizing particle fineness,
Overheavy firing improves efficiency.
As shown in figure 3, fuel gas enters from gaseous fuel inlet port 19, by top when using fuel gas work
The first fuel gas channel 20, the second fuel gas channel 21 and the third that side cover 5, middle part side cover 3 and nozzle body 8 are formed
Fuel gas channel 22 enters 6 the 4th fuel gas channels 30 of the vertical interphase distribution of anti-carbon deposition air intake 27, effectively subtracts
Few nozzle occupied space, subsequently enters the annular space being made of outer cover 14 and heat-insulated inner cover 7, finally by axis direction and liquid
17 axis direction of fuel nozzle ports is one group uniformly distributed at 12.5 ° of angles around 17 central axis of liquid fuel spout circumferentially every 2 at 30 ° of angles
10 gaseous fuel outlets 15 spray, into combustion space, guarantee good combustion effect.At this point, liquid fuel road feeds pressure
Contracting air purge and meanwhile nozzle body is cooled down, prolong the service life.
As shown in Figure 1, prevent carbon distribution air cooling component by the front fin 32 of heat-insulated inner cover 7 and nozzle body 8 with it is finned
Runner 31 is constituted, and the two is attached by the way of welding.The advantage of this fin structure is to improve nozzle arrangements intensity
I.e. non-deformability while enhanced heat exchange, keep nozzle interior low temperature, prolong the service life.Cooling air passes through 6 normal direction
Anti-carbon deposition air intake 27 enter to nozzle body 8 finned runner 31 and heat-insulated inner cover 7 constitute free air space, finally by
The spouting formation thermal insulation protection gas mould of cooling air outlet 16, prevents carbon distribution from being formed.
It uses liquid fuel when starting and slow train operating condition are run using the gas turbine of the double nozzle, passes through and assist mist
Change air road actively it is air-supplied, it can be achieved that under the conditions of single liquid fuel road liquid fuel good atomization, improvement light a fire at this time
Performance and efficiency of combustion avoid additional volume subsystem；In the operation of high operating condition, pass through liquid fuel swirling flow atomizing component and sky
Gas assists the effective of swirling flow atomizing component to combine design, can form negative pressuren zone, combustion chamber in exit after the strong eddy flow of liquid fuel
Interior air can out of burning chamber shell under differential pressure action automatically into air-assisted atomization eddy flow component, to having sprayed and
The liquid fuel of atomization carries out reinforcing atomization by the shear action of air-flow, realizes " self-priming " air-assisted atomization, further
Improve efficiency of combustion.Effective combination that liquid fuel is well atomized when running by slow train operating condition and high operating condition, and take into account
The whole design that fuel gas uses, realize gas turbine full working scope multi fuel efficient operation, keep gas turbine it is small in size,
Light-weight innate advantage widens the application range of gas turbine, realizes rationally and efficiently using for the energy.
Claims (8)
1. a kind of self-priming air-assisted atomization dual fuel nozzle, it is characterised in that: including liquid fuel swirling flow atomizing component, sky
Gas auxiliary swirling flow atomizing component is detachably fixed component, prevents carbon distribution air cooling component, middle part side cover (3), top side cover
(5), outer cover (14), fuel gas interface (4), liquid fuel interface (1) and atomizing air interface (2) and nozzle body (8)；Institute
Stating liquid fuel swirling flow atomizing component includes liquid fuel cyclone (12) and liquid fuel spout (17)；The air auxiliary rotation
Flowing atomizing component includes atomizing air cyclone (13) and air port (6)；The liquid fuel cyclone (12) is installed on mist
Change in air cyclone (13)；It is described prevent carbon distribution air cooling component include heat-insulated inner cover (7), nozzle body (8) front fin
(32) and finned runner (31)；The liquid fuel inlet port (23) of the liquid fuel interface (1) and atomizing air interface (2)
Gas liquid two purpose filter core (28) and detachable locating snap ring (29) are separately installed in atomizing air inlets (24).
2. a kind of self-priming air-assisted atomization dual fuel nozzle according to claim 1, it is characterised in that: the outer cover
(14) it is welded with heat-insulated inner cover (7), outer cover (14) is equipped with 10 gaseous fuel outlets (15), the axis of gaseous fuel outlet (15)
The angle of the axis direction in line direction and liquid fuel spout (17) is 30 °；The gaseous fuel outlet (15) every 2 are 1 group,
Every group of 2 gaseous fuel outlets (15) are circumferentially evenly distributed at 12.5 ° of angles, and around the central axis of liquid fuel spout (17).
3. a kind of self-priming air-assisted atomization dual fuel nozzle according to claim 1, it is characterised in that: the liquid
Fuel swirl device (12) is nested in the inner cavity of atomizing air cyclone (13) by grafting, and the two is by being detachably fixed group
Part is fixed in nozzle body (8) in the way of rated moment；The component that is detachably fixed includes capping (10), gasket
(9) and plug screw (11), plug screw (11) use the connection type of double end straight thread, and one end and nozzle body (8) are fixed, to squeeze
Mode compresses and fixes liquid fuel swirl device (12) and atomizing air cyclone (13), the other end and gasket (9) and capping
(10) it is connected to the end face of nozzle body (8) in the way of rated moment, collectively constitutes liquid fuel swirl channel and auxiliary rotation
Flow atomizing air channel；The inner wall of the liquid fuel cyclone (12) and atomizing air cyclone (13) forms the second liquid
Fuel channel (34).
4. a kind of self-priming air-assisted atomization dual fuel nozzle according to claim 1, it is characterised in that: the nozzle
Shell (8) is equipped with the first liquid fuel channel (25) and the first atomizing air channel (26), the interior cavity wall of nozzle body (8)
Face and atomizing air cyclone (13) outside wall surface form the second atomizing air channel (33).
5. a kind of self-priming air-assisted atomization dual fuel nozzle according to claim 1, it is characterised in that: the top
Side cover (5), middle part side cover (3) and nozzle body (8) form the first fuel gas channel (20), the second fuel gas channel
(21) and third fuel gas channel (22).
6. a kind of self-priming air-assisted atomization dual fuel nozzle according to claim 1, it is characterised in that: described heat-insulated
Inner cover (7) is equipped with 6 the 4th gas of anti-carbon deposition air intake (27) and interphase distribution vertical with anti-carbon deposition air intake (27)
State fuel channel (30).
7. a kind of self-priming air-assisted atomization dual fuel nozzle according to claim 1, it is characterised in that: the liquid
The eddy flow slot rotation direction of fuel swirl device (12) is identical as the eddy flow slot rotation direction of atomizing air cyclone (13).
8. a kind of self-priming air-assisted atomization dual fuel nozzle according to claim 1, it is characterised in that: the gaseous state
Fuel interface (4), liquid fuel interface (1) and atomizing air interface (2) use the externally threaded sealed connection mode of inner conical surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018202213928 | 2018-02-08 | ||
| CN201820221392 | 2018-02-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208295959U true CN208295959U (en) | 2018-12-28 |
Family
ID=64727824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820731468.1U Active CN208295959U (en) | 2018-02-08 | 2018-05-17 | A kind of self-priming air-assisted atomization dual fuel nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208295959U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443912A (en) * | 2018-02-08 | 2018-08-24 | 中国船舶重工集团公司第七0三研究所 | A kind of self-priming air-assisted atomization dual fuel nozzle |
| CN110274260A (en) * | 2019-06-19 | 2019-09-24 | 北京理工大学 | A kind of self-service gas pilot jet |
| US11448175B1 (en) * | 2021-06-03 | 2022-09-20 | General Electric Company | Fuel nozzle |
-
2018
- 2018-05-17 CN CN201820731468.1U patent/CN208295959U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443912A (en) * | 2018-02-08 | 2018-08-24 | 中国船舶重工集团公司第七0三研究所 | A kind of self-priming air-assisted atomization dual fuel nozzle |
| CN108443912B (en) * | 2018-02-08 | 2023-10-03 | 中国船舶重工集团公司第七0三研究所 | Self-priming air-assisted atomization dual-fuel nozzle |
| CN110274260A (en) * | 2019-06-19 | 2019-09-24 | 北京理工大学 | A kind of self-service gas pilot jet |
| US11448175B1 (en) * | 2021-06-03 | 2022-09-20 | General Electric Company | Fuel nozzle |
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