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CN106907710A - Dual fuel nozzle, nozzle array and burner with fractal structure cartridge - Google Patents

Dual fuel nozzle, nozzle array and burner with fractal structure cartridge Download PDF

Info

Publication number
CN106907710A
CN106907710A CN201710122442.7A CN201710122442A CN106907710A CN 106907710 A CN106907710 A CN 106907710A CN 201710122442 A CN201710122442 A CN 201710122442A CN 106907710 A CN106907710 A CN 106907710A
Authority
CN
China
Prior art keywords
branch pipe
shape branch
nozzle
dual fuel
fraction
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710122442.7A
Other languages
Chinese (zh)
Inventor
李钢
徐纲
卢新根
朱俊强
尹娟
杜薇
穆勇
刘存喜
刘富强
杨金虎
殷晓霞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institute of Engineering Thermophysics of CAS
Original Assignee
Institute of Engineering Thermophysics of CAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Institute of Engineering Thermophysics of CAS filed Critical Institute of Engineering Thermophysics of CAS
Priority to CN201710122442.7A priority Critical patent/CN106907710A/en
Publication of CN106907710A publication Critical patent/CN106907710A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/02Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/48Nozzles
    • F23D14/58Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/60Devices for simultaneous control of gas and combustion air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/84Flame spreading or otherwise shaping

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)

Abstract

The invention provides a kind of dual fuel nozzle with fractal structure cartridge, including outer nozzle wall and fractal structure cartridge, fractal structure cartridge is multistage fractal structure, including supervisor and many fraction shape branch pipes, include multiple branch pipes per fraction shape branch pipe, each branch pipe of upper level point shape branch pipe separates next fraction shape branch pipe.Using fractal structure cartridge Flow in Nozzle lose small, flow blockage it is small, mixing effect is good, combustion stability is good, pollutant emission is low.

Description

Dual fuel nozzle, nozzle array and burner with fractal structure cartridge
Technical field
The present invention relates to burner technical field, more particularly to a kind of double fuel spray with fractal structure cartridge Mouth, nozzle array and burner, it is particularly well-suited to the various industrial burners such as gas turbine, boiler, chemical furnace.
Background technology
Industrial production is such as smelted, petrochemical industry, pharmacy, papermaking and mining industry can produce a large amount of pernicious gases and low heat value gas Body, these gases are directly discharged to meeting severe contamination environment in air, but also waste the energy.If by the burning of these gases Utilize, not only reduce environmental pollution and energy saving.Current China problem of environmental pollution is extremely serious, the related cleaning combustion of development Burning technology is very urgent.Additionally, aero-engine, generating gas turbine, warship marine gas turbine are also required for burner.Combustion Burner manufacturer has developed various clean-burning technologies, such as poor premixed combustion technology, dilute phase premix and pre-evaporation technology, oil-poor straight Spray technique etc., although these technologies can effectively reduce the discharge of pollutant, all suffers from the problem of combustion instability.
Combustion stability and pollutant emission are the important parameters of nozzle and burner, and this area needs a kind of burning of exploitation badly The low nozzle of good stability, pollutant emission.
The content of the invention
(1) technical problem to be solved
In order to solve the above mentioned problem of prior art presence, the invention provides a kind of double with fractal structure cartridge Fuel nozzle, nozzle array and burner.
(2) technical scheme
The invention provides a kind of dual fuel nozzle with fractal structure cartridge, including:Outer nozzle wall and point shape knot Structure cartridge;The fractal structure cartridge is multistage fractal structure, including is responsible for and many fraction shape branch pipes, per fraction shape branch pipe Including multiple branch pipes, each branch pipe of upper level point shape branch pipe separates next fraction shape branch pipe;Supervisor's entrance is fuel inlet, end Fraction shape branch outlet is fuel outlet, and air intake is formed between supervisor's entrance and outer nozzle wall entrance.
Preferably, final stage point shape branch pipe is bend pipe, forms rotate counterclockwise structure.
Preferably, also including middle cylinder, center final stage point shape branch pipe is straight tube, and the middle cylinder wraps up center final stage Divide shape branch pipe, inside middle cylinder, the downstream setting mesh plate of center final stage point shape branch pipe.
Preferably, final stage point shape branch outlet is provided with elbow.
Preferably, final stage point shape branch outlet sets jet rose.
Preferably, including M fraction shape branch pipes, each branch pipe of upper level point shape branch pipe separates N number of branch pipe, used as next stage Shape branch pipe, M fraction shapes branch pipe is divided to have NMIndividual branch pipe, wherein, 2≤M, 2≤N.
Preferably, the M takes 2, and the N takes 4, and a fraction shape branch pipe includes four branch pipes that supervisor separates, two fraction shapes Branch pipe includes 16 branch pipes that a fraction shape branch pipe is separated.
Preferably, the supervisor is coaxially disposed in outer nozzle wall, and fuel is gas or liquid.
Present invention also offers a kind of nozzle array, including any of the above-described dual fuel nozzle.
Present invention also offers a kind of burner, including any of the above-described dual fuel nozzle, or nozzle array.
(3) beneficial effect
From above-mentioned technical proposal as can be seen that the dual fuel nozzle with fractal structure cartridge of the invention, nozzle array Row and burner have the advantages that:
(1) fuel enters nozzle by being responsible for entrance, and multiple branch roads are divided into by each fraction shape branch pipe, by final stage point shape branch pipe Outlet outflow, air enters nozzle by air intake, the fuel mixed combustion flowed out with final stage point shape branch outlet, using a point shape The Flow in Nozzle of structural fuel pipe loses that small, flow blockage is small, mixing effect is good, combustion stability is good, pollutant emission is low.
(2) using the final stage point shape branch pipe of flexure type, fuel carries rotary motion, under the action of the centrifugal force in jet expansion Expansion shape flame is formed, so as to further increase combustion stability.
(3) by setting middle cylinder and waffle slab, nozzle has good combustion stability and low stain thing row simultaneously Put.
(4) final stage point shape branch outlet is provided with elbow, can control the swirl strength of fuel, so as to further increase Combustion stability.
(5) final stage point shape branch outlet sets jet rose, can strengthen the mixing effect of fuel and air.
Brief description of the drawings
Fig. 1 is the dual fuel nozzle structural representation of first embodiment of the invention;
Fig. 2 is the structural representation of point shape unit substantially;
Fig. 3 is the another structural representation of dual fuel nozzle of first embodiment of the invention;
Fig. 4 is the dual fuel nozzle structural representation of second embodiment of the invention;
Fig. 5 is the top view of Fig. 4;
Fig. 6 is the semi-cutaway of the dual fuel nozzle of third embodiment of the invention;
Fig. 7 is the top view of Fig. 6;
Fig. 8 is another top view of Fig. 6;
Fig. 9 is the critical size schematic diagram of dual fuel nozzle;
Figure 10 is the dual fuel nozzle structural representation of fourth embodiment of the invention;
Figure 11 is the dual fuel nozzle structural representation of fifth embodiment of the invention.
【Symbol description】
1- is responsible for entrance;2- air intakes;3- is responsible for;4- outer nozzle walls;The fraction shape branch pipes of 5- mono-;The fraction shape branch of 6- bis- Pipe;The fraction shape branch outlets of 7- bis-;8- jet expansions;9- middle cylinders;10- mesh plates;11- dilution zones;12- primary branches;13- From branch pipe;14- elbows;15- jet roses.
The distance between the outlet of A- middle cylinders and jet expansion;B- mesh plates export and middle cylinder outlet between away from From;The distance between the outlet of C- fractal structures cartridge and mesh plate entrance.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with specific embodiment, and reference Accompanying drawing, the present invention is described in more detail.
Fig. 1, Fig. 2 are refer to, first embodiment of the invention provides a kind of double fuel spray with fractal structure cartridge Mouth, including:Outer nozzle wall 4 and fractal structure cartridge.
Fractal structure cartridge be three-level fractal structure, including supervisor 3, by supervisor 3 separate a fraction shape branch pipes 5, by The two fraction shape branch pipes 6 that one fraction shape branch pipe 5 is separated.
Wherein, supervisor 3 is coaxially disposed in entrance of the entrance 1 as fractal structure cartridge in outer nozzle wall 4, is responsible for, main Air intake 2 is formed between tube inlet 1 and outer nozzle wall entrance.
One fraction shape branch pipe 5 includes four branch pipes that the downstream of supervisor separates, and two fraction shape branch pipes 6 include a fraction shape Four branch pipes that the downstream of branch pipe separates, two fraction shape branch outlets 7 are exported as fractal structure cartridge.
For the present embodiment, upper level point shape branch pipe is both one-level branch pipe and the supervisor of next fraction shape branch pipe, As in Fig. 1, a fraction shape branch pipe 5 is both first order branch pipe, is again the supervisor of two fraction shape branch pipes 6.Supervisor and its next fraction Shape branch pipe constitutes a point shape unit substantially, as shown in Fig. 2 basic point shape unit is made up of a supervisor and four branch pipes.Such as Shown in Fig. 1, fractal structure cartridge has two-stage fractal structure, and each divides shape unit with four branch pipes substantially, has 16 Two fraction shape branch pipes, i.e. the fractal structure cartridge have 42=16 outlets.As shown in figure 3, fractal structure cartridge has Three-level fractal structure, each divides shape unit with four branch pipes, has 16 two fraction shape branch pipes and 64 three fraction shapes substantially Branch pipe, i.e. the fractal structure cartridge have 43=64 outlets.
Each fraction shape branch pipe can be using primary branch and from the form of branch pipe, such as shown in Fig. 1, Fig. 2, per fraction shape branch Pipe includes a primary branch 12 for being located at center and surround the primary branch 12 three from branch pipe 13, and primary branch bearing of trend is still protected Hold supervisor's bearing of trend of the fraction shape branch pipe.
Fractal structure cartridge described above has two-stage or three-level fractal structure, but the present invention is not limited thereto, In nozzle of the invention, fractal structure cartridge can have multistage fractal structure, and it is many that each divides shape unit to have substantially Individual branch pipe.For with the M grades of cartridge of fractal structure, each point shape unit substantially has N number of branch pipe, then m fractions shape branch The total N of pipemIndividual branch pipe, the fractal structure cartridge has NMIndividual outlet, wherein, 2≤M, 2≤N, 2≤m≤M.
Nozzle shown in Fig. 1, fractal structure cartridge outlet is located at the same axial location of nozzle, nozzle with jet expansion 8 Diffusion combustion mode is worked in, fuel can also can be liquid for gas, and nozzle is entered by being responsible for entrance 1.Fractal structure Cartridge outlet can also than jet expansion 8 closer to nozzle upstream position, nozzle operation is in premixed combustion mode.
In the present embodiment, the supervisor of fractal structure cartridge and each fraction shape branch pipe are straight tube, and section can be circle Shape, ellipse, triangle, polygon, it is preferably circular.Supervisor can be coaxially disposed with outer nozzle wall, it is also possible to positioned at nozzle Optional position in outer wall.
The nozzle of the present embodiment, fuel enters nozzle by being responsible for entrance, and multiple branch roads are divided into by each fraction shape branch pipe, by Final stage point shape branch outlet outflow, air enters nozzle by air intake, and the fuel flowed out with final stage point shape branch outlet mixes Burning, using fractal structure cartridge Flow in Nozzle lose small, flow blockage it is small, mixing effect is good, combustion stability is good, dirt Dye thing discharge is low.
The dual fuel nozzle of second embodiment of the invention, in order to reach the purpose of brief description, in above-mentioned first embodiment Any technical characteristic for making same application is described all and in this, without repeating identical narration.
In the embodiment, final stage point shape branch pipe not branch pipe, but the bend pipe of Curved.Refer to Fig. 4, two fraction shape branch Pipe 6 is bend pipe.Fig. 5 is the top view of Fig. 4, and two fraction shape branch pipes of flexure type form rotate counterclockwise structure, Ji Chu centers two Outside the primary branch of fraction shape branch pipe, two fraction shape branch outlets are referred both to counterclockwise, and the fraction shape branch pipe of center two refers to it Primary branch bearing of trend keeps two fraction shape branch pipes of supervisor's bearing of trend.Fuel will produce inverse after being sprayed by two fraction shape branch pipes Conterclockwise rotary motion, because fuel carries rotary motion, forms expansion shape fire in jet expansion under the action of the centrifugal force Flame, so as to further increase combustion stability.
The dual fuel nozzle of third embodiment of the invention, in order to reach the purpose of brief description, in any of the above-described embodiment Any technical characteristic for making same application is described all and in this, without repeating identical narration.
In the embodiment, dual fuel nozzle also includes middle cylinder, and center final stage point shape branch pipe is straight tube, remaining final stage point Shape branch pipe is bend pipe, middle cylinder parcel center final stage point shape branch pipe.Fig. 6 is referred to, dual fuel nozzle also includes middle circle Cylinder 9, middle cylinder 9 can be coaxially disposed with the supervisor of fractal structure cartridge, the parcel fraction shape branch pipe of center two of middle cylinder 9 Tract, inside middle cylinder, the downstream of the fraction shape branch pipe of center two mesh plate 10 is set;In middle cylinder outlet downstream Dilution zone 11 is formed, the fluid in middle cylinder is mutually blended with the fluid outside middle cylinder in dilution zone 11.
Fig. 7 is the top view of Fig. 6, and Fig. 8 omits the schematic diagram of mesh plate for Fig. 7, it is seen then that two fraction shapes in middle cylinder Branch pipe is straight tube, and the fuel in such middle cylinder is simple axial movement, without circumferential rotary motion;Outside middle cylinder Two fraction shape branch pipes be bend pipe, the fuel for ejecting carry counter-clockwise rotary motion.
The fuel that two fraction shape branch pipes outside due to middle cylinder are ejected carries rotary motion, exists under the action of the centrifugal force Jet expansion forms expansion shape flame, improves the stability of burning, and the fuel in intermediate flow channel is the axial movement of irrotationality, can To prevent from forming strong inverse flow area in jet expansion, reduce flow losses, reduce pollutant emission, the nozzle has good simultaneously Good combustion stability and the discharge of low stain thing.
The ratio of perforated area and mesh plate suqare is 0-100% on mesh plate, that is to say, that mesh plate 10 can not be opened Hole, now the ratio of perforated area and mesh plate suqare is 0 on mesh plate;Mesh plate 10 can whole perforates, equivalent to not setting Mesh plate is put, the ratio of perforated area and mesh plate suqare is 100% on mesh plate.It is preferred that perforated area and mesh on mesh plate The ratio of plate suqare is 40%-80%.A diameter of 0.1-10mm in hole on mesh plate, the size in hole can with it is identical can not also Together;The shape in hole can be the combination of circle, ellipse, triangle, polygon or these shapes.Mesh plate thickness is 0 ~100mm, preferably 1~5mm, 0mm is equivalent to being not provided with mesh plate.Fig. 9 is referred to, between middle cylinder outlet and jet expansion Apart from A, mesh plate outlet with middle cylinder outlet the distance between B, fractal structure cartridge outlet with mesh plate entrance it Between be respectively 0mm~1000mm apart from C.
The dual fuel nozzle of fourth embodiment of the invention, in order to reach the purpose of brief description, in any of the above-described embodiment Any technical characteristic for making same application is described all and in this, without repeating identical narration.
Figure 10 is referred to, in this embodiment, final stage point shape branch outlet is provided with elbow 14, by adjusting elbow 14 Angle of bend and direction, can be such that fuel is sprayed according to different angles, the swirl strength of fuel can be controlled, so as to enter one Step improves combustion stability.
The dual fuel nozzle of fifth embodiment of the invention, in order to reach the purpose of brief description, in any of the above-described embodiment Any technical characteristic for making same application is described all and in this, without repeating identical narration.
Figure 11 is referred to, in this embodiment, final stage point shape branch outlet sets jet rose 15, can so strengthen combustion The mixing effect of material and air, jet rose 15 is not limited to the semi-spherical shape provided in Figure 11, can also be other forms.
Sixth embodiment of the invention provides a kind of nozzle array, and it includes the double combustions described in multiple any of the above-described embodiments Material nozzle.
Wherein, the nozzle array is circular array, and the circular array includes that P encloses nozzle, and often enclosing nozzle includes Q nozzle, Wherein 1≤P, Q≤100.
Wherein the nozzle array is rectangular array, and the rectangular array includes P row nozzles, and often row nozzle includes Q nozzle, its In 1≤P, Q≤100.
Seventh embodiment of the invention provides a kind of burner, and it includes any embodiment in above-mentioned the first to five embodiment Described dual fuel nozzle, or the nozzle array described in sixth embodiment.
So far, combined accompanying drawing has been described in detail to the present embodiment.According to above description, those skilled in the art Should have to the present invention and clearly recognize.
It should be noted that in accompanying drawing or specification text, the implementation for not illustrating or describing is affiliated technology Form known to a person of ordinary skill in the art, is not described in detail in field.Additionally, above-mentioned definition to each element and not only limiting Various concrete structures, shape or the mode mentioned in embodiment, those of ordinary skill in the art can be carried out simply more to it Change or replace, for example:
(1) direction term mentioned in embodiment, for example " on ", D score, "front", "rear", "left", "right" etc., be only ginseng The direction of accompanying drawing is examined, not for limiting the scope of the invention;
(2) above-described embodiment can be based on design and the consideration of reliability, and the collocation that is mixed with each other is used or and other embodiment Mix and match is used, i.e., the technical characteristic in different embodiments can freely form more embodiments.
Particular embodiments described above, has been carried out further in detail to the purpose of the present invention, technical scheme and beneficial effect Describe in detail bright, should be understood that and the foregoing is only specific embodiment of the invention, be not intended to limit the invention, it is all Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc., should be included in guarantor of the invention Within the scope of shield.

Claims (10)

1. a kind of dual fuel nozzle with fractal structure cartridge, it is characterised in that including:Outer nozzle wall and fractal structure fire Expects pipe;
The fractal structure cartridge is multistage fractal structure, including is responsible for and many fraction shape branch pipes, is included per fraction shape branch pipe Multiple branch pipes, each branch pipe of upper level point shape branch pipe separates next fraction shape branch pipe;
Supervisor's entrance is fuel inlet, and final stage point shape branch outlet is fuel outlet, between supervisor's entrance and outer nozzle wall entrance Form air intake.
2. dual fuel nozzle as claimed in claim 1, it is characterised in that final stage point shape branch pipe is bend pipe, forms rotation counterclockwise Rotation structure.
3. dual fuel nozzle as claimed in claim 2, it is characterised in that also including middle cylinder, center final stage point shape branch pipe It is straight tube, the middle cylinder parcel center final stage point shape branch pipe, inside middle cylinder, the downstream of center final stage point shape branch pipe Mesh plate is set.
4. dual fuel nozzle as claimed in claim 1, it is characterised in that final stage point shape branch outlet is provided with elbow.
5. dual fuel nozzle as claimed in claim 1, it is characterised in that final stage point shape branch outlet sets jet rose.
6. dual fuel nozzle as claimed in claim 1, it is characterised in that including M fraction shape branch pipes, upper level point shape branch pipe Each branch pipe separates N number of branch pipe, and used as next fraction shape branch pipe, M fraction shapes branch pipe has NMIndividual branch pipe, wherein, 2≤M, 2 ≤N。
7. dual fuel nozzle as claimed in claim 6, it is characterised in that the M takes 2, and the N takes 4, a fraction shape branch pipe bag Four branch pipes that supervisor separates are included, two fraction shape branch pipes include 16 branch pipes that a fraction shape branch pipe is separated.
8. dual fuel nozzle as claimed in claim 1, it is characterised in that the supervisor is coaxially disposed in outer nozzle wall, combustion Expect to be gas or liquid.
9. a kind of nozzle array, including the dual fuel nozzle in claim 1 to 8 described in any claim.
10. a kind of burner, including the dual fuel nozzle in claim 1 to 8 described in any claim, or claim Nozzle array described in 9.
CN201710122442.7A 2017-03-02 2017-03-02 Dual fuel nozzle, nozzle array and burner with fractal structure cartridge Pending CN106907710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710122442.7A CN106907710A (en) 2017-03-02 2017-03-02 Dual fuel nozzle, nozzle array and burner with fractal structure cartridge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710122442.7A CN106907710A (en) 2017-03-02 2017-03-02 Dual fuel nozzle, nozzle array and burner with fractal structure cartridge

Publications (1)

Publication Number Publication Date
CN106907710A true CN106907710A (en) 2017-06-30

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108561880A (en) * 2018-03-09 2018-09-21 清华大学 A kind of burning device of circulating fluidized bed of water-coal-slurry and its full fast bed fluidized state
WO2019016307A1 (en) * 2017-07-21 2019-01-24 Kueppers Solutions Gmbh Burner
DE202017007522U1 (en) 2017-07-21 2022-05-24 Kueppers Solutions Gmbh burner

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US4116618A (en) * 1977-07-13 1978-09-26 Combustion Unlimited Incorporated Flame retention apparatus for flares
EP0654637A1 (en) * 1993-11-19 1995-05-24 GIERSCH GmbH Gas burner
JPH10151376A (en) * 1996-11-26 1998-06-09 Kootemu:Kk Powder coating gun
CN2661653Y (en) * 2003-11-21 2004-12-08 王敏 Concentrated phase pulverized coal distributor
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CN204358722U (en) * 2014-12-20 2015-05-27 山西亚乐士环保技术股份有限公司 Vortex burner
CN204829914U (en) * 2015-06-12 2015-12-02 宁波福马工具有限公司 Multitube laminar gas spray gun
CN106196057A (en) * 2016-08-26 2016-12-07 中能服能源科技股份有限公司 A kind of novel low nitrogen oxide burner structure

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4116618A (en) * 1977-07-13 1978-09-26 Combustion Unlimited Incorporated Flame retention apparatus for flares
EP0654637A1 (en) * 1993-11-19 1995-05-24 GIERSCH GmbH Gas burner
JPH10151376A (en) * 1996-11-26 1998-06-09 Kootemu:Kk Powder coating gun
CN2661653Y (en) * 2003-11-21 2004-12-08 王敏 Concentrated phase pulverized coal distributor
US20090274549A1 (en) * 2005-10-26 2009-11-05 Rolls-Royce Plc Wall cooling arrangement
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CN106196057A (en) * 2016-08-26 2016-12-07 中能服能源科技股份有限公司 A kind of novel low nitrogen oxide burner structure

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019016307A1 (en) * 2017-07-21 2019-01-24 Kueppers Solutions Gmbh Burner
CN110869673A (en) * 2017-07-21 2020-03-06 库珀斯解决方案有限公司 Burner with a burner head
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DE102017116529B4 (en) 2017-07-21 2022-05-05 Kueppers Solutions Gmbh burner
DE202017007522U1 (en) 2017-07-21 2022-05-24 Kueppers Solutions Gmbh burner
US11815264B2 (en) 2017-07-21 2023-11-14 Kueppers Solutions Gmbh Burner
CN108561880A (en) * 2018-03-09 2018-09-21 清华大学 A kind of burning device of circulating fluidized bed of water-coal-slurry and its full fast bed fluidized state
CN108561880B (en) * 2018-03-09 2024-04-23 清华大学 Coal water slurry and circulating fluidized bed combustion device in full-fast bed fluidization state thereof

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Application publication date: 20170630