CN107631324A - fuel-air mixer - Google Patents
fuel-air mixer Download PDFInfo
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- CN107631324A CN107631324A CN201710791941.5A CN201710791941A CN107631324A CN 107631324 A CN107631324 A CN 107631324A CN 201710791941 A CN201710791941 A CN 201710791941A CN 107631324 A CN107631324 A CN 107631324A
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- China
- Prior art keywords
- fuel
- air
- dispensing body
- premix
- jet orifice
- Prior art date
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Abstract
The invention discloses a kind of fuel-air mixer, the fuel-air mixer includes air dispensing body and fuel dispensing body, and the outer peripheral face of the air dispensing body is provided with the air groove of multiple axially extending insertions along air dispensing body air dispensing body；The jet orifice connected in the fuel dispensing body with fuel channel, with the premix assignment channel of the fuel passage and with the premix assignment channel, the fuel dispensing body are connected with the air dispensing body so that the premix assignment channel connects with the air groove.The present invention is simple in construction, and the microring array of fuel and air can be completed inside Small-scale Space, the mixing effect of fuel and air is improved, is effectively reduced the discharge of pollutant.
Description
Technical field
The present invention relates to gas turbine technology field, more particularly to a kind of blender, relates more specifically to one kind and is used for
The fuel-air mixer of gas turbine.
Background technology
The mixture of compressed air and fuel burns in the burner of gas turbine, produces high-temperature flue gas and promotes turbine to do
Fuel and air are mixed and sprayed to combustion zone by its nozzle (also commonly referred to as fuel nozzle) by work(, wherein burner.
In correlation technique, mixing tube, air distribution manifold or fuel distribution manifold are provided with fuel nozzle, fuel and air pass through mixing
Pipe, air distribution manifold or fuel distribution manifold carry out premixing fill-before-fire and enter combustion zone, so as to reduce pollutant emission.So
And above-mentioned fuel nozzle is unable to reach lower pollutant emission level to meet environmental protection after ignition temperature further raises
Index.Thus, it is desirable to control pollutant emission in the mixed process of fuel and air.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.
Therefore, the present invention proposes a kind of fuel-air mixer, the fuel-air mixer is simple in construction, can be in small chi
The microring array that interior volume completes fuel and air is spent, the mixing effect of fuel and air is improved, is effectively reduced pollutant
Discharge.
Fuel-air mixer according to embodiments of the present invention includes：Air dispensing body, the periphery of the air dispensing body
Face is provided with multiple air grooves, circumferentially-spaced distribution of multiple air grooves along the air dispensing body, the air groove edge
The axially extending insertion air dispensing body of the air dispensing body；Fuel dispensing body, the fuel dispensing body is interior to have combustion
Expect passage, premix assignment channel and the jet orifice for the mixture of fuel and air to be sprayed from the premix assignment channel,
The premix assignment channel and the fuel passage, the jet orifice connect with the premix assignment channel, the fuel
Passage and the premix assignment channel are respectively from the rear end face of the fuel dispensing body towards the front end face of the fuel dispensing body
Extension, the jet orifice extend from the front end face of the fuel dispensing body towards the rear end face of the fuel dispensing body, the combustion
Material dispensing body is connected with the air dispensing body so that the premix assignment channel connects with the air groove.
It is simple in construction according to the fuel-air mixer of the present invention, by the setting of air dispensing body and fuel dispensing body,
The microring array of fuel and air can be completed inside Small-scale Space, improves the mixing effect of fuel and air, effectively
Reduce the discharge of pollutant.
In certain embodiments, on the cross section of the air dispensing body, the bearing of trend of the air groove deviates institute
State the center of air dispensing body.
In certain embodiments, center uniform intervals arrangement of multiple air grooves around the air dispensing body.
In certain embodiments, the air groove is four, on the cross section of the air dispensing body, two neighboring sky
The bearing of trend of air drain is orthogonal.
In certain embodiments, have in the air dispensing body along the axial direction of the air dispensing body and extend and pass through
Lead to the central passage of the air dispensing body, the central passage and the fuel passage.
In certain embodiments, the fuel channel and the central passage are coaxial.
In certain embodiments, the fuel channel is located at the center of the fuel dispensing body, the premix assignment channel
Around the fuel channel arranged for interval.
In certain embodiments, on the cross section of the fuel dispensing body, the assignment channel that premixes is along the fuel
Dispensing body radially extends.
In certain embodiments, the two neighboring length that radially extends of the premix assignment channel along the fuel dispensing body is not
Together.
In certain embodiments, the jet orifice includes inner ring jet orifice and outer ring jet orifice, in the fuel dispensing body
Front end face on, the inner ring jet orifice is divided into around the multiple rows of of the circumferentially-spaced distribution of the fuel channel, the outer ring jet orifice
It is divided into and is spaced apart around the inner ring jet orifice multiple rows of, each row of the inner ring jet orifice is along the fuel dispensing body
Spaced radial arranges that region of two rows of the outer ring jet orifice with the inner ring jet orifice between adjacent two row is corresponding.
In certain embodiments, the air dispensing body and the fuel dispensing body are cylinder.
In certain embodiments, the diameter of the air dispensing body is less than or equal to the diameter of the fuel dispensing body.
In certain embodiments, the air dispensing body and the fuel dispensing body are brought into close contact setting.
In certain embodiments, the air dispensing body and the fuel dispensing body pass through Welding.
In certain embodiments, the air dispensing body and fuel distribution body by integral forming.
In certain embodiments, the fuel dispensing body includes precursor and rear body, and the premix assignment channel is formed in institute
State it is rear in vivo and along after described body axially through body after described, the jet orifice forms on the precursor and along the precursor
Axially through the precursor.
Brief description of the drawings
Fig. 1 is the overall schematic of fuel-air mixer according to an embodiment of the invention；
Fig. 2 is the sectional view of the air dispensing body of fuel-air mixer according to an embodiment of the invention；
Fig. 3 is the schematic diagram of the rear end face of the fuel dispensing body of fuel-air mixer according to an embodiment of the invention；
Fig. 4 is the schematic diagram of the front end face of the fuel dispensing body of fuel-air mixer according to an embodiment of the invention；
Fig. 5 is the schematic diagram of the burner of the gas turbine of the embodiment of the present invention；
Fig. 6 is the composition schematic diagram of the gas turbine of the embodiment of the present invention.
Reference：
Fuel-air mixer 100, air dispensing body 1, fuel dispensing body 2, the rear end face 21 of fuel dispensing body, fuel point
The front end face 22 of part, air groove 3, fuel channel 4, assignment channel 5 is premixed, first group of premix assignment channel 51, second group pre-
Mixed passage 52, jet orifice 6, inner ring jet orifice 61, outer ring jet orifice 62, central passage 7, cartridge 8, mounting flange 9, air
10, fuel 11, extraneous air 12, high-pressure gas 13, compressor 14, turbine 15, generator 16, nozzle 200, burner 300, combustion
Gas-turbine 400.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings.Below with reference to
The embodiment of accompanying drawing description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
As Figure 1-4, fuel-air mixer 100 according to embodiments of the present invention includes air dispensing body 1 and fuel
Dispensing body 2.
The outer peripheral face of air dispensing body 1 is provided with multiple air grooves 3, between circumference of multiple air grooves 3 along air dispensing body 2
Every distribution, axial direction (left and right directions Fig. 1 shown in) of the air groove 3 along air dispensing body 1 extends through air dispensing body 1.Change speech
It, each air groove 3 is formed in the whole length of air dispensing body 1, as shown in figure 1, air groove 3 is by air dispensing body 1
Left side extends to the right side of air dispensing body 1.
There is fuel channel 4, premix assignment channel 5 and jet orifice 6 in fuel dispensing body 2, wherein, the He of fuel channel 4
Assignment channel 5 is premixed respectively from the rear end face 21 of fuel dispensing body 2 left side of fuel dispensing body 2 (such as in Fig. 1) towards combustion
(here, " preceding " refers to the mixed of fuel and air for front end face 22 (right side of fuel dispensing body 2 in Fig. 1) extension of material dispensing body 2
The injection direction of compound, direction from left to right as shown in Figure 1, is rear with the direction that injection direction deviates from).Jet orifice 6 from
The front end face 22 of fuel dispensing body 2 extends towards the rear end face 21 of fuel dispensing body 2, in other words, as shown in figure 1, jet orifice 6 from
The right-hand member of fuel dispensing body 2 extends towards the left side of fuel dispensing body 2.
Premix assignment channel 5 connects with fuel channel 4, and jet orifice 6 connects with premixing assignment channel 5, fuel and air
Mixture is sprayed from from premix assignment channel 5 by jet orifice 6, and fuel dispensing body 2 is connected with air dispensing body 1 to premix point
Connect, connected by premixing assignment channel 5 with air groove 3 and fuel channel 4, the sky in air groove 3 with air groove 3 with passage 5
Fuel 11 in gas 10 and fuel channel 4 can be respectively enterd in premix assignment channel 5, completed in premix assignment channel 5 empty
The mixing of gas and fuel.
In other words, as shown in fig. 1, air dispensing body 1 is located at the left side of fuel dispensing body 2, for ease of in air dispensing body 1
Air groove 3 with premix assignment channel 5 be connected, premix assignment channel 5 extend to the right from the left side of fuel dispensing body 2；For
It is easy to the mixture by the fuel 11 premixed in assignment channel 5 and air 10 to spray to the combustion zone on the right, jet orifice 6 is from combustion
The right side of material dispensing body 2 extends to the left, thus on right side of the mixture of fuel 11 and air 10 by fuel dispensing body 2
Jet orifice 6 spray to combustion zone.
It is understood that lead to by the air dispensing body 1 provided with air groove 3 and provided with premix assignment channel 5 and fuel
The fuel dispensing body 2 in road 4, it is possible to achieve the mixing of fuel 11 and air 10, premix assignment channel 5 radial dimension it is smaller or
In the case that extended distance is shorter from left to right of assignment channel 5 is premixed, fuel and air can also be sufficiently mixed, so as to realize
In Small-scale Space fuel 11 and the microring array of air 10.Here, the micro-in " microring array " refers to the mixed of fuel and air
It is small to close space, it is possible to achieve the microring array of fuel 11 and air 10, thus according to the fuel-air mixer of the embodiment of the present invention
For micro-mixer.
It is simple in construction according to the fuel-air mixer of the present invention, pass through air dispensing body and fuel dispensing body, Ke Yishi
The microring array of fuel and air inside present Small-scale Space, improves the mixing effect of fuel and air, is effectively reduced
The discharge of pollutant.
In certain embodiments, on the cross section of air dispensing body 1, the bearing of trend of air groove 3 deviates air distribution
The center of body 1, for example, on the cross section shown in Fig. 2, each air groove 3 distributes from the periphery of air dispensing body 1 towards air
The center of air dispensing body 1 is deviateed in the direction of the inside of body 1 extension, so that the air in air air inlet dispensing body 1
Eddy flow is formed after groove 3, further improves the mixing uniformity of air 10 and fuel 11.
In certain embodiments, center uniform intervals arrangement of multiple air grooves 3 around air dispensing body 1.
In certain embodiments, as shown in Fig. 2 air groove 3 is four, on the cross section of air dispensing body 1, adjacent two
The bearing of trend of individual air groove 3 is orthogonal, air 10 is formed eddy flow after respectively enteing four air grooves 3, it is possible to understand that
It is that the present invention is not limited thereto, such as air groove 3 is six, as long as forming eddy flow after the air inlet groove 3 of air 10.
In certain embodiments, have in air dispensing body 1 and connect central passage 7 with fuel channel 4, the central passage 7
Axial direction extension and insertion air dispensing body 1 along air dispensing body 1, in other words, central passage 7 is located at air dispensing body 1
Center, and from the left side of air dispensing body 1 extend to the right side of air dispensing body 1 with the right side of air dispensing body 1
Fuel channel 4 in fuel dispensing body 2 is connected, and is easy to supply fuel into fuel channel 4.
In certain embodiments, fuel channel 4 is located at the center of fuel dispensing body 2, and fuel channel 4 and central passage 7 are same
Axle, in other words, because central passage 7 and fuel channel 4 are located in the center and fuel dispensing body 2 of air dispensing body 1 respectively
The heart, air dispensing body 1 and fuel dispensing body 2 are coaxial.
In certain embodiments, premix assignment channel 5 is provided with multiple, and multiple premix assignment channels 5 are surrounded between fuel channel 4
Every arrangement.In other words, can having multiple premix assignment channels 5 in fuel dispensing body 2, (" multiple " are meant that at least two here
It is individual, such as two, three etc.), the multiple premix assignment channels 5 connected with fuel channel 4 are circumferentially-spaced around fuel channel 4
Arrangement, the multiposition of fuel and air in fuel dispensing body 2 realize mixing, improve the mixing effect of fuel 11 and air 10.
In certain embodiments, on the cross section of fuel dispensing body 2, footpath of the premix assignment channel 5 along fuel dispensing body 2
To extension, as shown in figure 3, one end of premix assignment channel 5 connects with fuel channel 4, the other end edge combustion of assignment channel 5 is premixed
Material dispensing body 2 extends radially outwardly.
In certain embodiments, the two neighboring length that radially extends of the premix assignment channel 5 along fuel dispensing body 2 is not
Together, different burning loads can be respectively applied to by radially extending the different premix assignment channel 5 of length.
Further, as shown in figure 3, premix assignment channel 5 includes first group of premix assignment channel 51 and second group pre-
Mixed assignment channel 52, the length that radially extends of second group of premix assignment channel 52 along fuel dispensing body 2 are longer than first group of premix
The length that radially extends of the assignment channel 51 along fuel dispensing body 2.First group of premix assignment channel 51 and second group of premix distribution
Passage 52 is connected with fuel channel 4 respectively, and fuel and air can be pre- in first group of premix assignment channel 51 and second group respectively
It is pre-mixed in mixed assignment channel 52, so as to adapt to different burning loads.
Further, first group of premix assignment channel 51 and second group of premix assignment channel 52 have multiple respectively, preferably
Ground, first group of premix assignment channel 51 and second group of premix assignment channel 52 have four respectively, first group of premix assignment channel
One of 51 located at second group of premixed channel 52 it is two neighboring between.It is understood that the present invention is not limited thereto, premix
The number and setting form of assignment channel 55 can select according to being actually needed.
In certain embodiments, jet orifice 6 includes multigroup, and multigroup jet orifice 6 premixes assignment channel 5 one a pair with multiple
Should, the fuel 11 in different premix assignment channels 5 and the mixture of air 10 are ejected into combustion zone.Further,
As shown in figure 4, jet orifice 6 includes inner ring jet orifice 61 and outer ring jet orifice 62, it is interior on the front end face 22 of fuel dispensing body 2
Circle jet orifice 61 is divided into around the multiple rows of of 4 circumferentially-spaced distribution of fuel channel, and outer ring jet orifice 62 is divided into around inner ring jet orifice 61
What is be spaced apart is multiple rows of, the spaced radial arrangement of each row of inner ring jet orifice 61 along fuel dispensing body 1, outer ring jet orifice 62
Region between two rows, two row adjacent with inner ring jet orifice 61 is corresponding.
In other words, jet orifice 6 includes two groups, and one group of jet orifice is radially disposed in another group of jet orifice along fuel distribution plate 2
Outside, then one group of jet orifice is outer ring jet orifice 62, and another group of jet orifice is inner ring jet orifice 61, inner ring jet
Hole 61 and outer ring jet orifice 62 are respectively classified into the multiple rows of of the circumferentially-spaced distribution around fuel channel 4, and two exclusive circle jet orifices
62 regions corresponded between adjacent two rows inner ring jet orifice 61, it is to be understood that two exclusive circle jet orifices 62 are penetrated in inner ring
In region between the stretching out of adjacent two row of discharge orifice 61.
In addition, inner ring jet orifice 61 can be connected with first group of premix assignment channel 51, outer ring jet orifice 62 can be with
Second group of premix assignment channel 52 is connected, will be pre- in first group of premix assignment channel 51 and second group of premix assignment channel 52
The fuel 11 and air 10 of mixing are ejected into combustion zone respectively.It is understood that the present invention is not limited thereto, jet orifice 6
Individual setting form can be specifically chosen according to being actually needed, different jet hole 6 and the different connection forms for premixing assignment channels 5
Can be specifically chosen according to being actually needed.
In certain embodiments, as in Figure 2-4, air dispensing body 1 and fuel dispensing body 2 are cylinder, more enter one
Step ground, the diameter of air dispensing body 1 are less than or equal to the diameter of fuel dispensing body 2.
In certain embodiments, air dispensing body 1 and fuel dispensing body 2 are brought into close contact setting, as shown in figure 1, air point
The right side of ligand 1 and the left side 21 of fuel dispensing body 2 are brought into close contact, in order to the connection of central passage 7 and fuel channel 4
And the connection of air groove 3 and premix assignment channel 5.It is understood that in order to realize air dispensing body 1 and fuel dispensing body
2 are brought into close contact, and air dispensing body 1 and fuel dispensing body 2 pass through Welding, or air dispensing body 1 and fuel dispensing body 2
It is integrally formed, such as being integrally formed for air dispensing body 1 and fuel dispensing body 2 is realized by 3D printing technique.
In certain embodiments, fuel dispensing body 2 includes precursor and rear body, premix assignment channel 5 formed it is rear in vivo and
Along rear body axially through rear body, jet orifice 6 is formed on precursor and along precursor axially through precursor, in other words, premix point
The fuel dispensing body 2 corresponding to position extended right up to passage 5 from the left side of fuel dispensing body 2 is fuel dispensing body 2
Rear body, the fuel dispensing body 2 corresponding to position that jet orifice 6 extends to from the right side of fuel dispensing body 2 to the left is fuel
The precursor of dispensing body 2.
Below with reference to the accompanying drawings 1-4 describes the fuel-air mixer 100 according to the specific embodiment of the invention.
As Figure 1-4, fuel-air mixer 100 according to embodiments of the present invention includes air dispensing body 1 and fuel
Dispensing body 2.The left side of air dispensing body 1 connects and is brought into close contact fuel dispensing body 2, and air dispensing body 1 and fuel dispensing body 2 are equal
For cylinder, and the diameter of air dispensing body 1 is less than the diameter of fuel dispensing body 2, it is preferable that the two is coaxially connected to each other.
The outer peripheral face of air dispensing body 1 is provided with four air grooves 3, circumference of four air grooves 3 along air dispensing body 2 and
Around the center uniform intervals arrangement of air dispensing body 1, axially extending insertion air dispensing body of the air groove 3 along air dispensing body 1
1, on the cross section of air dispensing body 1, the bearing of trend of air groove 3 deviates the center of air dispensing body 1 and two neighboring sky
The bearing of trend of air drain 3 is orthogonal, air 10 is formed eddy flow after respectively enteing four air grooves 3.Have in air dispensing body 1
There is central passage 7, axial direction extension and insertion air dispensing body 1 of the central passage 7 along air dispensing body 1.
There is the fuel channel 4 being connected with central passage 7, the premix being connected with air groove 3 point in fuel dispensing body 2
With passage 5 and with the jet orifice 6 that is connected of premix assignment channel, wherein, fuel channel 4 and premix assignment channel 5 respectively from
The rear end face (left side) 21 of fuel dispensing body 2 towards fuel dispensing body 2 front end face 22 (right side) extend, jet orifice 6 from
The front end face (right side) 22 of fuel dispensing body 2 extends towards the rear end face (left side) 21 of fuel dispensing body 2.
Fuel channel 4 is located at the center of fuel dispensing body 2, and premix assignment channel 5 includes first group of premix assignment channel 51
With second group of premix assignment channel 52, first group of premix assignment channel 51 and second group of premix assignment channel 52 surround fuel respectively
The circumferential uniform intervals arrangement of passage 4, and second group of premix assignment channel 52 is grown along the length radially extended of fuel dispensing body 2
In the length that radially extends of first group of premix assignment channel 51 along fuel dispensing body 2.First group of premix assignment channel 51 and
Two groups of premix assignment channels 52 have four respectively, and one of first group of premix assignment channel 51 is located at second group of premixed channel 52
It is two neighboring between.
Jet orifice 6 includes the inner ring jet orifice 61 being connected with first group of premix assignment channel 51 and divided with second group of premix
The outer ring jet orifice 62 being connected with passage 52, on the front end face 22 of fuel dispensing body 2, inner ring jet orifice 61 is divided into around fuel
Eight rows of 4 circumferentially-spaced distribution of passage, outer ring jet orifice 62 is divided into 16 rows being spaced apart around inner ring jet orifice 61, each
Spaced radial arrangement of the inner ring jet orifice 61 of row along fuel dispensing body 1, two exclusive circle jet orifices 62 correspond in adjacent two row
The region enclosed between jet orifice 61.
The nozzle 200 of embodiment according to a further aspect of the invention is described below, as shown in figure 5, the nozzle in burner 300
200 include the fuel-air mixer 100 with reference to above-described embodiment description.
In certain embodiments, nozzle 200 also includes cartridge 8, and cartridge 8 leads to through the center in air dispensing body 1
The fuel channel 4 that road 7 is stretched into fuel dispensing body 2, to supply fuel 11 into fuel dispensing body 2.
In certain embodiments, the rear end of cartridge 8 is provided with mounting flange 9, such as shown in Fig. 1, the left end of cartridge 8 is set
There is mounting flange 9, in order to which nozzle 200 is installed in the burner 300 of gas turbine.
The gas turbine 400 of embodiment according to a further aspect of the present invention is described below.As shown in fig. 6, gas turbine 400 wraps
Include the nozzle 200 with reference to above-described embodiment description.In other words, gas turbine 400 includes burner 300, as shown in figure 5, burning
Device 300 includes nozzle 200.It is understood that gas turbine 400 also includes compressor 14 and turbine 15, extraneous air 12 exists
The air 10 of high pressure is compressed into compressor 14 through intimate adiabatic process, the air 10 of high pressure enters the nozzle of burner 300
Combining combustion is mixed with fuel 11 in 200, caused high-temperature high-pressure fuel gas 13 do work into turbine 15 after burning, caused work(one
Divide drive compressor 14, another part work(externally exports, such as the power output of drive generator 16 shown in Fig. 6.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (16)
- A kind of 1. fuel-air mixer, it is characterised in that including：Air dispensing body, the outer peripheral face of the air dispensing body are provided with multiple air grooves, and multiple air grooves are along the sky The circumferentially-spaced distribution of qi leel part, axially extending insertion of the air groove along the air dispensing body air distribution Body；Fuel dispensing body, with fuel channel, premix assignment channel and for by fuel and air in the fuel dispensing body The jet orifice that mixture sprays from the premix assignment channel, the premix assignment channel and the fuel passage, it is described Jet orifice connects with the premix assignment channel, and the fuel channel and the premix assignment channel distribute from the fuel respectively The rear end face of body extends towards the front end face of the fuel dispensing body, front end face court of the jet orifice from the fuel dispensing body Extend to the rear end face of the fuel dispensing body, the fuel dispensing body is connected with the air dispensing body so as to the premix point Connected with passage with the air groove.
- 2. fuel-air mixer according to claim 1, it is characterised in that in the cross section of the air dispensing body On, the bearing of trend of the air groove deviates the center of the air dispensing body.
- 3. fuel-air mixer according to claim 2, it is characterised in that multiple air grooves are around the air point The center uniform intervals arrangement of part.
- 4. fuel-air mixer according to claim 3, it is characterised in that the air groove is four, in the sky On the cross section of qi leel part, the bearing of trend of two neighboring air groove is orthogonal.
- 5. according to the fuel-air mixer any one of claim 1-4, it is characterised in that in the air dispensing body Extend with the axial direction along the air dispensing body and penetrate the central passage of the air dispensing body, the central passage With the fuel passage.
- 6. fuel-air mixer according to claim 5, it is characterised in that the fuel channel and the central passage Coaxially.
- 7. according to the fuel-air mixer any one of claim 1-6, it is characterised in that the fuel channel is located at The center of the fuel dispensing body, the premix assignment channel are multiple, and multiple premix assignment channels surround the fuel Channel spacing is arranged.
- 8. fuel-air mixer according to claim 7, it is characterised in that in the cross section of the fuel dispensing body On, premix assignment channel the radially extending along the fuel dispensing body.
- 9. fuel-air mixer according to claim 8, it is characterised in that two neighboring premix assignment channel is described in The length radially extended of fuel dispensing body is different.
- 10. according to the fuel-air mixer any one of claim 1-9, it is characterised in that the jet orifice includes Inner ring jet orifice and outer ring jet orifice, on the front end face of the fuel dispensing body, the inner ring jet orifice is divided into around the combustion Expect the circumferentially-spaced distribution of passage it is multiple rows of, the outer ring jet orifice be divided into be spaced apart around the inner ring jet orifice it is multiple rows of, Spaced radial arrangement of each row of the inner ring jet orifice along the fuel dispensing body, two rows of the outer ring jet orifice and institute The region stated between adjacent two row of inner ring jet orifice is corresponding.
- 11. according to the fuel-air mixer any one of claim 1-10, it is characterised in that the air dispensing body It is cylinder with the fuel dispensing body.
- 12. fuel-air mixer according to claim 11, it is characterised in that the diameter of the air dispensing body is less than Or the diameter equal to the fuel dispensing body.
- 13. according to the fuel-air mixer any one of claim 1-12, it is characterised in that the air dispensing body Setting is brought into close contact with the fuel dispensing body.
- 14. fuel-air mixer according to claim 13, it is characterised in that the air dispensing body and the fuel Dispensing body passes through Welding.
- 15. fuel-air mixer according to claim 13, it is characterised in that the air dispensing body and the fuel Distribute body by integral forming.
- 16. according to the fuel-air mixer any one of claim 1-15, it is characterised in that the fuel dispensing body Including precursor and rear body, the premix assignment channel formed in the rear in vivo and along after described body axially through after described Body, the jet orifice are formed on the precursor and along the precursor axially through the precursor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710791941.5A CN107631324B (en) | 2017-09-05 | 2017-09-05 | Fuel-air mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710791941.5A CN107631324B (en) | 2017-09-05 | 2017-09-05 | Fuel-air mixer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107631324A true CN107631324A (en) | 2018-01-26 |
| CN107631324B CN107631324B (en) | 2019-12-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710791941.5A Active CN107631324B (en) | 2017-09-05 | 2017-09-05 | Fuel-air mixer |
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| Country | Link |
|---|---|
| CN (1) | CN107631324B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4309771B2 (en) * | 2004-01-15 | 2009-08-05 | 株式会社タクマ | Multi-pipe once-through boiler |
| CN102865598A (en) * | 2011-06-27 | 2013-01-09 | 通用电气公司 | Premixer fuel nozzle for gas turbine engine |
| CN105899879A (en) * | 2014-09-29 | 2016-08-24 | 川崎重工业株式会社 | Fuel injection nozzle, fuel injection module, and gas turbine |
-
2017
- 2017-09-05 CN CN201710791941.5A patent/CN107631324B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4309771B2 (en) * | 2004-01-15 | 2009-08-05 | 株式会社タクマ | Multi-pipe once-through boiler |
| CN102865598A (en) * | 2011-06-27 | 2013-01-09 | 通用电气公司 | Premixer fuel nozzle for gas turbine engine |
| CN105899879A (en) * | 2014-09-29 | 2016-08-24 | 川崎重工业株式会社 | Fuel injection nozzle, fuel injection module, and gas turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107631324B (en) | 2019-12-06 |
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