CN105546535B - A kind of double working modes nozzle, nozzle array and burner - Google Patents
A kind of double working modes nozzle, nozzle array and burner Download PDFInfo
- Publication number
- CN105546535B CN105546535B CN201610096208.7A CN201610096208A CN105546535B CN 105546535 B CN105546535 B CN 105546535B CN 201610096208 A CN201610096208 A CN 201610096208A CN 105546535 B CN105546535 B CN 105546535B
- Authority
- CN
- China
- Prior art keywords
- nozzle
- cylinder
- air intake
- layer
- intake structure
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/48—Nozzles
- F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/70—Baffles or like flow-disturbing devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D2203/00—Gaseous fuel burners
- F23D2203/10—Flame diffusing means
Abstract
The invention provides a kind of double working modes nozzle, nozzle array and burner, wherein, air intake structure can move axially along cylinder among at least one layer of air intake structure among M layers, realize and switch between diffusion combustion mode and premixed combustion mode, go for various operating modes and fuel, drastically increase combustibility；Wave rotational structure forms oblique flow passage, improves efficiency of combustion, reduces pollutant emission, improves fired state；Under support cylinder guide functions so that fuel and air velocity are more steady, flow field is more stable, further increase the stability, completeness and efficiency of burning；Stepper motor and screw rod, flame holding monitoring device and controller realize the automatic switchover of diffusion combustion mode and premixed combustion mode, without manual intervention, improve the accuracy and reaction speed of pattern switching.
Description
Technical field
The present invention relates to burner technical field, more particularly to a kind of double working modes nozzle and nozzle array, and it is special
Shi Yongyu not the various industrial burners such as gas turbine, boiler, chemical furnace.
Background technology
The features such as gas turbine is due to unit small volume and output power, is widely used in electric power, aviation, petrochemical industry
Etc. industry.Due to energy crisis and environmental degradation, be badly in need of development high-efficiency cleaning combustion chamber, it is desirable to combustion chamber have igniting it is reliable,
The characteristics such as flameholding, efficiency high and low emission.Current China problem of environmental pollution is extremely serious, development gas turbine cleaning combustion
Burning technology is very urgent.Gas turbine manufacturer has developed a variety of clean-burning technologies, and such as poor premixed combustion technology, dilute phase are pre-
Mixed pre-evaporation technique, oil-poor direct injection technology and catalytic combustion technology etc., although these technologies can effectively reduce pollutant
The problem of discharging, but all suffering from combustion instability.A kind of radial direction for liquid fuel combustion developed such as AM General company
Grading combustion technology, it can effectively reduce nitric oxide discharge.But because main flame stabilization is at the low speed edge of shear layer,
Shear layer low-speed region nearby can produce periodic vortex shedding, and vibration is also easy to produce near point of safes, be transported in off-design behaviour
Combustion instability phenomenon easily occurs during row.Similar with gas turbine burner, other all types of industries burners are also faced with stabilization
Burning and the contradiction for reducing pollutant emission.
Diffusion combustion advantage be operation in will not produce tempering phenomenon, safety coefficient height, stable and reliable operation, in addition with
Igniting is relatively easy to, in terms of heat load adjustment, the advantages that thermic load adjustable extent is wider, shortcoming only leans on diffusion when being burning
Make air contact with each other with combustion gas to chemically react, therefore the length of flame of diffusion flame burner is longer, unit volume is put
Calorific intensity is not high；The advantages of premixed combustion is can to reduce pollutant by technologies such as poor premixed combustion, dilute phase premix and pre-evaporations
Discharge, due to being pre-mixed for fuel and oxidant, combustion reaction is influenceed to ignore substantially by incorporation time yardstick, significantly
Degree improves combustion velocity and flame propagation velocity, and shortcoming is that flame holding is poor, tempering can bring potential safety hazard
Problem.Therefore, how to take into account the advantages of diffusion combustion and premixed combustion, and avoid diffusion combustion and premixed combustion as far as possible
Shortcoming, turn into the problem that this area is urgently studied.
The content of the invention
(1) technical problems to be solved
In order to solve above mentioned problem existing for prior art, the invention provides a kind of double working modes nozzle, nozzle array
Row and burner.
(2) technical scheme
The invention provides a kind of double working modes nozzle, it includes：Among inner layer cylinder 11, outer layer cylinder 31 and M layers
Air intake structure, 1≤M≤100, wherein：Air intake structure is located between inner layer cylinder 11 and outer layer cylinder 31 among M layers, along circle
The radial direction of cylinder surrounding is arranged in order, air intake structure and inner layer cylinder 11 between air intake structure, among innermost layer among adjacent two layers
Between, form gas channel between air intake structure and outer layer cylinder 31 among outermost layer；Wherein, at least one layer of middle air intake structure
It can be moved axially along cylinder, realize the switching of diffusion combustion mode and premixed combustion mode.
Preferably, after nozzle operation, air intake structure is located at upper limit position among M layers, and fuel and air are respectively via difference
Gas channel after sprayed by nozzle, burnt near jet expansion, nozzle operation is in diffusion combustion mode；The upper limit position
It is the port of export of the port of export and the outer layer cylinder of air intake structure among M layers in the position axially aligned.
Preferably, at least one layer of middle air intake structure axially moves along cylinder to fluid intake direction, until flame occurs
Slight unstable state or at least one layer of middle air intake structure reach lower position, at least one layer centre air intake structure both sides
Fuel and air in gas channel blend in gas channel near exit, are burnt after being sprayed by nozzle near jet expansion,
Nozzle operation is in premixed combustion mode；The lower position is the port of export of air intake structure and outer layer cylinder among at least one layer of
The port of export is in the position for axially offsetting 10mm-1000mm.
Preferably, when flame instability state is aggravated or tempering phenomenon occurs, at least one layer of middle air intake structure edge circle
Cylinder is axially moved to fluid issuing direction, and upper limit is reached until flame is in air intake structure among stable state or at least one layer
Put.
Preferably, middle air intake structure is wave rotational structure 21, and wave rotational structure 21 is by N number of ripple for radially rising and falling
Peak 22 and N number of trough 23 is circumferentially spaced forms, between the crest 22 and trough 23 of adjacent two layers wave rotational structure, most
Between the trough and outer layer cylinder 31 of outer layer wave rotational structure and innermost layer wave rotational structure crest and inner layer cylinder
Oblique flow passage 25 is formed between 11, the oblique flow passage 25 is extended from the bottom of wave rotational structure to top, and with axial direction into one
Determine angle, wherein, 2≤N≤10000.
Preferably, middle air intake structure also includes support cylinder 24, top and the wave rotational structure of the support cylinder
Crest is connected with the bottom of trough, and drainage channel is formed between adjacent supports cylinder 24, the drainage channel and wave rotational structure
21 formed oblique flow passages connection, between innermost layer support cylinder and inner layer cylinder 11 formed in side runner, the interior side runner with
The oblique flow passage that innermost layer wave rotational structure is formed with inner layer cylinder 11 connects, outermost layer support cylinder and outer layer cylinder 31 it
Between form outer side runner, the outer side runner connects with the oblique flow passage of outermost layer wave rotational structure and the formation of outer layer cylinder 31.
Preferably, double working modes nozzle also includes：Stepper motor 41 and screw rod 42, the rotation of the drive screw of stepper motor 41
Turn, screw rod 42 connects the support cylinder 24 of air intake structure among at least one layer, and stepper motor 41 and screw rod 42 drive at least jointly
Air intake structure moves axially along cylinder among one layer.
Preferably, double working modes nozzle also includes：Flame holding monitoring device 44 and controller 43, controller 43 connect
Flame STABILITY MONITORING of starting to exchange fire device 44 and stepper motor 41, flame holding monitoring device 44 monitor flame combustion situation and to controls
Device 43 processed sends monitoring signals, and controller 43 generates control signal according to monitoring signals and is sent to stepper motor 41, stepping electricity
Machine 41 rotates according to control signal drive screw, realizes that air intake structure moves axially along cylinder among at least one layer of.
Present invention also offers a kind of nozzle array, and it includes the double working modes nozzle described in multiple any of the above-described kinds,
Wherein：The nozzle array is circular array, and the circular array includes P circle nozzles, and often enclosing nozzle includes Q nozzle, wherein 1≤P,
Q≤100；Or the nozzle array is rectangular array, the rectangular array includes P row nozzles, and often row nozzle includes Q nozzle, its
In 1≤P, Q≤100.
The present invention also provides a kind of burner, and it includes the double working modes nozzle described in any of the above-described kind, or above-mentioned spray
Mouth array.
(3) beneficial effect
It can be seen from the above technical proposal that the present invention double working modes nozzle, nozzle array and burner have with
Lower beneficial effect：
(1) air intake structure can move axially along cylinder among at least one layer of air intake structure among M layers, realize diffusion combustion
Switch between burning pattern and premixed combustion mode, the advantages of making full use of diffusion combustion mode and premixed combustion mode, Ke Yishi
For various operating modes and fuel, combustibility is drastically increased；
(2) air intake structure is wave rotational structure among, and wave rotational structure forms oblique flow passage so that flows through oblique flow and leads to
Fuel and air behind road can be blended more fully, improved efficiency of combustion, reduced pollutant emission, improve burning
State；
(3) air intake structure also includes support cylinder among, and support cylinder forms drainage channel, interior side runner and outer effluent
Road, under its guide functions so that fuel and air velocity are more steady, flow field is more stable, can further improve the stabilization of burning
Property, completeness and efficiency；
(4) stepper motor and screw rod are as drive device, and flame holding monitoring device and controller are respectively as sensing
Device and control device, the automatic switchover of diffusion combustion mode and premixed combustion mode is realized, without manual intervention, improved
The accuracy and reaction speed of pattern switching, further increase the performance of double working modes nozzle.
Brief description of the drawings
Fig. 1 is the double working modes nozzle operation of the embodiment of the present invention in the half-section diagram of premixed combustion mode；
Fig. 2 is double working modes nozzle operation shown in Fig. 1 in the schematic three dimensional views of premixed combustion mode；
Fig. 3 is double working modes nozzle operation shown in Fig. 1 in diffusion combustion mode half-section diagram；
Fig. 4 is double working modes nozzle operation shown in Fig. 1 in diffusion combustion mode schematic three dimensional views；
Fig. 5 is the schematic three dimensional views of wave rotational structure；
Fig. 6 is the double working modes nozzle schematic diagram with two wave rotational structures；
Fig. 7 is the relative position schematic diagram of inner layer cylinder and outer layer cylinder；
Fig. 8 circular nozzle array schematic diagrames.
【Symbol description】
11- inner layer cylinders；21- wave rotational structures；22- crests；23- troughs；24- support cylinders；25- oblique flow passages；
31- outer layer cylinders；41- stepper motors；42- screw rods；43- controllers；44- flame holding monitoring devices；D- inner layer cylinders
The distance that the port of export of the port of export and outer layer cylinder staggers.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with specific embodiment, and reference
Accompanying drawing, the present invention is described in more detail.
Fig. 1-7 are referred to, the double working modes nozzle of first embodiment of the invention, it includes inner layer cylinder 11, outer layer circle
Air intake structure among cylinder 31 and M layers, M layers centre air intake structure is located between inner layer cylinder 11 and outer layer cylinder 31, along cylinder
The radial direction of surrounding is arranged in order, among adjacent two layers between air intake structure, among innermost layer air intake structure and inner layer cylinder 11 it
Between, form gas channel among outermost layer between air intake structure and outer layer cylinder 31, it is at least one layer of among air intake structure can be along circle
Cylinder axial movement, realizes the switching of diffusion combustion mode and premixed combustion mode, wherein, 1≤M≤100.
Preferably, inner layer cylinder 11 can be coaxially disposed with outer layer cylinder 31, and the axis of the two can also be arranged in parallel, it is described extremely
Air intake structure can move axially along cylinder among few one layer, refer to that air intake structure can be along the axle of inner layer cylinder among at least one layer
To and/or outer layer cylinder axial movement；
Preferably, as Figure 1-4, the port of export of inner layer cylinder can align in axial direction with the port of export of outer layer cylinder and set
Put, as shown in fig. 7, the port of export of inner layer cylinder also can stagger one in axial direction to the port of export of fluid intake direction and outer layer cylinder
Set a distance is set, wherein, the distance D that the port of export of inner layer cylinder staggers with the port of export of outer layer cylinder is 0~100mm.
Preferably, air intake structure can all move axially along cylinder among the M layers, or among M layers in air intake structure
Air intake structure can move axially along cylinder among part, further, enter among innermost layer among air intake structure and/or outermost layer
Depressed structure can move axially along cylinder.
Preferably, air intake structure moving along cylinder axial direction among at least one layer of is manually realized.
The double working modes nozzle of first embodiment of the invention, after nozzle operation, air intake structure is located at Fig. 3 institutes among M layers
The upper limit position shown, fuel and air are sprayed via after different gas channels by nozzle respectively, are burnt near jet expansion,
Now nozzle operation is in diffusion combustion mode, although diffusion combustion is easily lighted a fire, flameholding, the length of flame is longer, burning
Completeness is poor.
Wherein, the upper limit position refers to that the port of export of air intake structure and the port of export of outer layer cylinder are in axle among M layers
To alignment.
Then, at least one layer of middle air intake structure axially moves along cylinder to fluid intake direction, until flame occurs gently
Micro- unstable state or at least one layer of middle air intake structure reach the lower position shown in Fig. 1, enter among at least one layer depressed
Fuel and air in the gas channel of structure both sides blend in gas channel near exit, and are sprayed by nozzle, in jet expansion
Burning nearby, now nozzle operation is in premixed combustion mode, to improve combustion velocity, flame propagation velocity and burn
Quan Xing.
Wherein, the lower position refers to the port of export of the port of export of air intake structure and outer layer cylinder among at least one layer
Axially offsetting 10mm-1000mm.
When flame instability state is aggravated or when there is tempering phenomenon, it is at least one layer of among air intake structure along cylinder axially to
Fluid issuing direction is moved, until flame is in stable state or at least one layer of middle air intake structure arrival upper limit position.Work as spray
When mouth is out of service, if air intake structure is not in upper limit position among at least one layer of, at least one layer of middle air intake structure continues
Axially moved along cylinder to fluid issuing direction, air intake structure is in upper limit position among at least one layer, so realizes
The switching of diffusion combustion mode and premixed combustion mode.
As can be seen here, the double working modes nozzle of first embodiment of the invention, can be according to combustion case in diffusion combustion
Switch between pattern and premixed combustion mode, the advantages of diffusion combustion mode and premixed combustion mode can be made full use of, and use up
The shortcomings that amount avoids the two, goes for various operating modes and fuel, drastically increases combustibility.
The double working modes nozzle of second embodiment of the invention, in order to reach the purpose of brief description, above-mentioned first implements
Any technical characteristic for making same application is described all and in this in example, without repeating identical narration.
The double working modes nozzle, wherein, middle air intake structure is wave rotational structure 21, and the rotation of adjacent two layers wave is tied
Between structure 21, between innermost layer wave rotational structure and inner layer cylinder 11, outermost layer wave rotational structure and outer layer cylinder 31 it
Between form oblique flow passage 25, the oblique flow passage 25 is extended from the bottom of wave rotational structure to top, and certain with axially having
Angle.As shown in Fig. 1-4,7, the M takes 1, has one layer of wave rotational structure；As shown in fig. 6, the M takes 2, have two layers
Wave rotational structure.
Preferably, wave rotational structure 21 is circumferentially spaced by the N number of crest 22 and N number of trough 23 radially to rise and fall
Form, between the crest 22 and trough 23 of adjacent two layers wave rotational structure, the trough and outer layer of outermost layer wave rotational structure
Oblique flow passage 25 is formed between cylinder 31 and between the crest and inner layer cylinder 11 of innermost layer wave rotational structure, wherein, 2≤
N≤10000。
Preferably, the cross sectional shape of wave rotational structure can be annular or polygonal annular.Wave rotational structure adds
Work mode can be monolithic extruded shaping, monoblock cast or overall turnning and milling；Or piecemeal extrusion forming, individual cast, piecemeal car
Milling, it is then integrally welded.The oblique flow passage 25 of wave rotational structure is -89 °~89 ° with axial angle, wave rotational structure
Direction of rotation can be clockwise can also be counterclockwise.
Preferably, M layers wave rotational structure 21 is coaxially disposed；The port of export of M layer wave rotational structures can be in Cylindorical rod
Set to alignment, the certain distance that can also mutually stagger in cylinder axial direction is set.
The double working modes nozzle of second embodiment of the invention, fuel and air pass through oblique flow passage 25 respectively, in oblique flow
Axially flowed along cylinder in the presence of passage 25, while can also along the circumferential direction rotary motion so that fuel and air can be more
Add and fully blend, improve efficiency of combustion, reduce pollutant emission, improve fired state.
The double working modes nozzle of third embodiment of the invention, in order to reach the purpose of brief description, any of the above-described implementation
Any technical characteristic for making same application is described all and in this in example, without repeating identical narration.
The double working modes nozzle, middle air intake structure also include support cylinder 24, the top of the support cylinder and wave
The crest of rotational structure is connected with the bottom of trough, and drainage channel is formed between adjacent supports cylinder 24, the drainage channel and ripple
The oblique flow passage connection that unrestrained rotational structure 21 is formed, side runner in formation between innermost layer support cylinder and inner layer cylinder 11, should
The oblique flow passage that interior side runner and innermost layer wave rotational structure and inner layer cylinder 11 are formed connect, outermost layer support cylinder with outside
Outer side runner, the oblique flow that the outer side runner is formed with outermost layer wave rotational structure and outer layer cylinder 31 are formed between layer cylinder 31
Passage connects.
The double working modes nozzle of third embodiment of the invention, support cylinder 24 play guide functions so that fuel and sky
Gas velocity is more steady, flow field is more stable, can further improve the stability, completeness and efficiency of burning.
The double working modes nozzle of fourth embodiment of the invention, in order to reach the purpose of brief description, any of the above-described implementation
Any technical characteristic for making same application is described all and in this in example, without repeating identical narration.
The double working modes nozzle also includes stepper motor 41 and screw rod 42, the rotation of the drive screw of stepper motor 41, screw rod
The support cylinder 24 of air intake structure among 42 connections are at least one layer of, stepper motor 41 and screw rod 42 are driven among at least one layer of jointly
Air intake structure moves axially along cylinder.
The double working modes nozzle of fourth embodiment of the invention, stepper motor 41 and screw rod can be utilized according to combustion case
42 realize that air intake structure moves axially along cylinder among at least one layer of, complete to cut between diffusion combustion mode and premixed combustion mode
Change.
The double working modes nozzle of fifth embodiment of the invention, in order to reach the purpose of brief description, any of the above-described implementation
Any technical characteristic for making same application is described all and in this in example, without repeating identical narration.
The double working modes nozzle also includes flame holding monitoring device 44 and controller 43, and controller 43 connects flame
STABILITY MONITORING device 44 and stepper motor 41, flame holding monitoring device 44 monitor flame combustion situation, according to burning feelings
Condition sends monitoring signals to controller 43, and controller 43 generates control signal according to monitoring signals, and is sent to stepper motor 41,
Stepper motor 41 rotates according to control signal drive screw, realizes that air intake structure moves axially along cylinder among at least one layer of, complete
Switch between diffusion combustion mode and premixed combustion mode.
Wherein, the controller 43 is preferably single-chip microcomputer；Flame holding monitoring device 44 is existing product, flame holding
Decision method can be based on pressure oscillation measure or be based on image analysis processing or be based on gas componant test
Etc. prior art means, these details repeat no more here beyond the scope of the invention.
The double working modes nozzle of fifth embodiment of the invention, based on flame holding monitoring device 44 and controller 43,
The diffusion combustion mode of double working modes nozzle and the automatic switchover of premixed combustion mode are realized, improves the standard of pattern switching
True property and reaction speed, without manual intervention, further increase the performance of double working modes nozzle.
Sixth embodiment of the invention provides a kind of nozzle array, and it includes the duplex described in multiple any of the above-described embodiments
Operation mode nozzle.
Wherein, the nozzle array is circular array, and the circular array includes P circle nozzles, and often enclosing nozzle includes Q nozzle,
Wherein 1≤P, Q≤100.As shown in figure 8, the circular array includes 2 circle nozzles, first lap nozzle includes 1 nozzle, the second circle
Nozzle includes 6 nozzles.
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 double working modes nozzle, or the nozzle array described in sixth embodiment.
So far, the present embodiment is described in detail combined accompanying drawing.According to above description, those skilled in the art
There should be clear understanding to double working modes nozzle, nozzle array and the burner of the present invention.
It should be noted that in accompanying drawing or specification text, the implementation that does not illustrate or describe is affiliated technology
Form known to a person of ordinary skill in the art, is not described in detail in field.In addition, 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, such as：
(1) wave rotational structure can also select other structures；
(2) direction term mentioned in embodiment, such as " on ", " under ", "front", "rear", "left", "right" etc., only it is ginseng
The direction of accompanying drawing is examined, is not used for limiting the scope of the invention；
(3) consideration that above-described embodiment can be based on design and reliability, the collocation that is mixed with each other uses or and other embodiment
Mix and match uses, i.e., the technical characteristic in different embodiments can freely form more embodiments.
In summary, a kind of double working modes nozzle, nozzle array and burner of the invention can be used for aviation, chemical industry,
The fields such as generating, metallurgy, it can switch according to combustion case between diffusion combustion mode and premixed combustion mode, Ke Yichong
The shortcomings that dividing the advantages of utilizing diffusion combustion mode and premixed combustion mode, and avoiding the two as far as possible, go for various works
Condition and fuel so that fuel and air can be blended more fully, improved efficiency of combustion, reduced pollutant emission, change
It has been apt to fired state, has drastically increased combustibility.
Particular embodiments described above, the purpose of the present invention, technical scheme and beneficial effect are carried out further in detail
Describe in detail it is bright, should be understood that the foregoing is only the present invention specific embodiment, 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., it should be included in the guarantor of the present invention
Within the scope of shield.
Claims (8)
- A kind of 1. double working modes nozzle, it is characterised in that including：Enter among inner layer cylinder (11), outer layer cylinder (31) and M layers Depressed structure, 1≤M≤100, wherein：Air intake structure is located between inner layer cylinder (11) and outer layer cylinder (31) among M layers, along cylinder surrounding radial direction successively Arrange, among adjacent two layers between air intake structure, among innermost layer between air intake structure and inner layer cylinder (11), among outermost layer Gas channel is formed between air intake structure and outer layer cylinder (31)；Wherein, at least one layer of middle air intake structure can move axially along cylinder, realize diffusion combustion mode and premixed combustion mode Switching；Middle air intake structure is wave rotational structure (21), and wave rotational structure (21) is by N number of crest (22) for radially rising and falling With N number of trough (23) is circumferentially spaced forms, between the crest (22) and trough (23) of adjacent two layers wave rotational structure, Between the trough and outer layer cylinder (31) of outermost layer wave rotational structure and innermost layer wave rotational structure crest and internal layer Oblique flow passage (25) is formed between cylinder (11), the oblique flow passage (25) is extended from the bottom of wave rotational structure to top, and In a certain angle with the axis, wherein, 2≤N≤10000；Middle air intake structure also includes support cylinder (24), the top of the support cylinder and the crest and trough of wave rotational structure Bottom connection, adjacent supports cylinder forms drainage channel between (24), the drainage channel and wave rotational structure (21) formation Oblique flow passage connection, between innermost layer support cylinder and inner layer cylinder (11) formation in side runner, the interior side runner with it is most interior Layer wave rotational structure connects with the oblique flow passage that inner layer cylinder (11) is formed, outermost layer support cylinder and outer layer cylinder (31) it Between form outer side runner, the oblique flow passage company that the outer side runner is formed with outermost layer wave rotational structure and outer layer cylinder (31) It is logical.
- 2. double working modes nozzle as claimed in claim 1, it is characterised in that after nozzle operation, air intake structure position among M layers In upper limit position, fuel and air are sprayed via after different gas channels by nozzle respectively, are burnt near jet expansion, spray Mouth works in diffusion combustion mode；The upper limit position is the port of export of air intake structure among M layers and the port of export of outer layer cylinder in the position axially aligned.
- 3. double working modes nozzle as claimed in claim 2, it is characterised in that air intake structure is along Cylindorical rod among at least one layer of Moved to fluid intake direction, until slight unstable state or at least one layer of middle air intake structure arrival lower limit occurs in flame Position, fuel and air among at least one layer in the gas channel of air intake structure both sides are mixed in gas channel near exit It is mixed, burnt after being sprayed by nozzle near jet expansion, nozzle operation is in premixed combustion mode；The lower position is axially offsetting at least one layer of middle port of export of air intake structure with the port of export of outer layer cylinder 10mm-1000mm position.
- 4. double working modes nozzle as claimed in claim 3, it is characterised in that when flame instability state is aggravated or is returned During fiery phenomenon, at least one layer of middle air intake structure axially moves along cylinder to fluid issuing direction, stablizes shape until flame is in State or at least one layer of middle air intake structure reach upper limit position.
- 5. double working modes nozzle as claimed in claim 1, it is characterised in that also include：Stepper motor (41) and screw rod (42), the rotation of stepper motor (41) drive screw, screw rod (42) connection are at least one layer of middle The support cylinder (24) of air intake structure, stepper motor (41) and screw rod (42) drive air intake structure edge circle among at least one layer of jointly Cylinder axial movement.
- 6. double working modes nozzle as claimed in claim 5, it is characterised in that also include：Flame holding monitoring device (44) and controller (43), controller (43) connection flame holding monitoring device (44) and Stepper motor (41), flame holding monitoring device (44) monitoring flame combustion situation simultaneously send monitoring letter to controller (43) Number, controller (43) generates control signal according to monitoring signals and is sent to stepper motor (41), and stepper motor (41) is according to control Signal drive screw rotation processed, realize that air intake structure moves axially along cylinder among at least one layer of.
- 7. a kind of nozzle array, it includes the double working modes nozzle described in any claim in multiple claim 1-6, its In：The nozzle array is circular array, and the circular array includes P circle nozzles, and often enclosing nozzle includes Q nozzle, wherein 1≤P, Q ≤100；OrThe nozzle array is rectangular array, and the rectangular array includes P row nozzles, and often row nozzle includes Q nozzle, wherein 1≤P, Q ≤100。
- 8. a kind of burner, it includes the double working modes nozzle described in any claim in claim 1-6, or right will Seek the nozzle array described in 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096208.7A CN105546535B (en) | 2016-02-22 | 2016-02-22 | A kind of double working modes nozzle, nozzle array and burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610096208.7A CN105546535B (en) | 2016-02-22 | 2016-02-22 | A kind of double working modes nozzle, nozzle array and burner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105546535A CN105546535A (en) | 2016-05-04 |
| CN105546535B true CN105546535B (en) | 2018-03-09 |
Family
ID=55825917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610096208.7A Active CN105546535B (en) | 2016-02-22 | 2016-02-22 | A kind of double working modes nozzle, nozzle array and burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105546535B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765105B (en) * | 2016-12-28 | 2019-04-30 | 中国科学院工程热物理研究所 | A kind of double entrances have nozzle, nozzle array and the burner of catalyst |
| CN108386870B (en) * | 2018-03-02 | 2019-12-20 | 中国科学院工程热物理研究所 | Radial combustor and automatic control method thereof |
| CN114856827B (en) * | 2022-05-12 | 2023-06-30 | 中国航发四川燃气涡轮研究院 | Detachable fan-shaped nozzle capable of adjusting nozzle position and spraying direction |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS569604A (en) * | 1979-07-02 | 1981-01-31 | Muraoka Pipe Enjin Seisakusho:Kk | Pipe turbine |
| CN2141867Y (en) * | 1992-10-22 | 1993-09-08 | 赵益民 | Double-purpose coal powder burner with single or double passages |
| CN203595145U (en) * | 2013-12-13 | 2014-05-14 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | Double-fuel combustion chamber nozzle for combustion gas turbine |
| CN104132344A (en) * | 2014-08-06 | 2014-11-05 | 北京大学 | Flameless fuel gas combustion device and method with extremely low nitrogen oxide emission |
| CN104728866A (en) * | 2015-03-17 | 2015-06-24 | 上海交通大学 | Five-nozzle combustor structure applied to gas turbine low-pollution combustion chamber |
| CN104863714A (en) * | 2015-06-01 | 2015-08-26 | 江苏华强新能源科技有限公司 | Exhaust device for gas turbine |
-
2016
- 2016-02-22 CN CN201610096208.7A patent/CN105546535B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS569604A (en) * | 1979-07-02 | 1981-01-31 | Muraoka Pipe Enjin Seisakusho:Kk | Pipe turbine |
| CN2141867Y (en) * | 1992-10-22 | 1993-09-08 | 赵益民 | Double-purpose coal powder burner with single or double passages |
| CN203595145U (en) * | 2013-12-13 | 2014-05-14 | 北京华清燃气轮机与煤气化联合循环工程技术有限公司 | Double-fuel combustion chamber nozzle for combustion gas turbine |
| CN104132344A (en) * | 2014-08-06 | 2014-11-05 | 北京大学 | Flameless fuel gas combustion device and method with extremely low nitrogen oxide emission |
| CN104728866A (en) * | 2015-03-17 | 2015-06-24 | 上海交通大学 | Five-nozzle combustor structure applied to gas turbine low-pollution combustion chamber |
| CN104863714A (en) * | 2015-06-01 | 2015-08-26 | 江苏华强新能源科技有限公司 | Exhaust device for gas turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105546535A (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105910136B (en) | A kind of adjustable nozzles, nozzle array and burner | |
| CN106224959B (en) | Burner, burner array and burner with regulating flow quantity nozzle | |
| CN105546535B (en) | A kind of double working modes nozzle, nozzle array and burner | |
| CN106907709B (en) | A kind of swirling number and the adjustable nozzle of turbulivity, nozzle array and burner | |
| CN103791518B (en) | A kind of combustion chamber fuel oil sprays and mixing arrangement and aero-engine | |
| CN105737200B (en) | A kind of atomizer, nozzle array and burner | |
| CN105650639A (en) | Multi-nozzle-hole nozzle, nozzle array and combustor | |
| CN105757716B (en) | A kind of nozzle, nozzle array and burner for premixed combustion | |
| CN106196051A (en) | A kind of tubule premixed swirl low stain gas burner | |
| CN105864765B (en) | Nozzle, nozzle array with Plasma Actuator and burner | |
| CN106247408B (en) | A kind of nozzle, nozzle array and burner for widening tempering nargin | |
| CN104566472A (en) | Spray nozzle and gas turbine | |
| CN106705122B (en) | A kind of nozzle, nozzle array and burner having both inside and outside dilution zone | |
| CN115013840B (en) | Plasma nozzle and combustion device | |
| CN105674263A (en) | Nozzle with mixing combustion stabilizing structures, nozzle array and combustor | |
| CN104048325A (en) | Double-cavity flameless burner | |
| CN105783031B (en) | A kind of integrated plasma excitation device, nozzle array and burner | |
| CN106705045B (en) | A kind of adjustable nozzle of interior outer flow passage equivalent proportion, nozzle array and burner | |
| CN106765105B (en) | A kind of double entrances have nozzle, nozzle array and the burner of catalyst | |
| CN105937774B (en) | A kind of oil-poor direct-injection fractional combustion chamber system of multiple spot and its method of work | |
| CN102410533A (en) | Swirl triple-tube burner | |
| CN107036098A (en) | A kind of multitube fuel gas mixing machine of monocline tubular type outlet | |
| CN213686817U (en) | Multi-stage adjustable low-nitrogen gas burner suitable for coke oven gas | |
| CN218672156U (en) | Liquid fuel low-nitrogen oxide sub-high-speed burner | |
| CN115355539B (en) | Hydrogen fuel non-premixed combustion chamber with variable main combustion hole area |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |