CN108626750A - The burner inner liner of active control circulation area - Google Patents
The burner inner liner of active control circulation area Download PDFInfo
- Publication number
- CN108626750A CN108626750A CN201810437321.6A CN201810437321A CN108626750A CN 108626750 A CN108626750 A CN 108626750A CN 201810437321 A CN201810437321 A CN 201810437321A CN 108626750 A CN108626750 A CN 108626750A
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- Prior art keywords
- inner liner
- burner inner
- variable cross
- section ring
- circulation area
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
- F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
- F23R3/42—Continuous combustion chambers using liquid or gaseous fuel characterised by the arrangement or form of the flame tubes or combustion chambers
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention discloses a kind of burner inner liners of active control circulation area, including burner inner liner back segment, the flame tube head that is connected with burner inner liner back segment and is used to enter for combustion gas and air burner inner liner back segment, flame tube head is provided with multiple blast tubes and multiple air ducts, it is provided with cyclone in air duct, combustion gas with fuel-lean conditions swirl injection enters burner inner liner back segment after entering from blast tube and being premixed with the air in air duct；The lateral wall of flame tube head also extends through the inlet channel being provided with for entering for air, and inlet channel is connected to air duct；The peripherally pivoted of lateral wall is arranged with variable cross-section ring, and through-hole is offered on variable cross-section ring, and through-hole converts between connected state and the state that is staggered to change the size of inlet channel circulation area when variable cross-section ring is rotated with the relative position of inlet channel.The distribution of active control air mass flow may be implemented to match different fuel, to adapt to reliable ignition and the combustion with reduced pollutants of fuels with different heat values simultaneously in the present invention.
Description
Technical field
The present invention relates to gas-turbine combustion chamber burner inner liner fields, particularly, are related to a kind of active control circulation area
Burner inner liner is suitable for gas turbine low pollution emission combustion chamber.
Background technology
Domestic and international gas turbine and industrial burner combustion with reduced pollutants, using the master of existing premixing fuel-lean combustion scheme
Want disadvantage as follows：
1) prior art cannot adapt to the reliable ignition of fuels with different heat values (such as biogas and natural gas) and low simultaneously
Pollution burning.To ensure that ignition start and combustion with reduced pollutants, prior art generally use flame tube head are classified (pre-burning
Grade, main combustion stage etc.) combustion scheme, but flame tube head trepanning rule, assignment of traffic remain unchanged, and are fired when using calorific value difference
When material, since the air capacity that different fuel needs is different, the air mass flow distribution of burner inner liner is no longer matched with fresh fuel, it is difficult to same
When meet it is reliable start, low pollution emission condition；
2) it is small to stablize burning adjustable range for prior art premix.The flame tube head trepanning rule of the prior art, flow point
With remaining unchanged, it can only ensure that burner inner liner premix is stablized by adjusting the fuel flow rate of nozzle (ignition start special nozzle) on duty
Burning can not expand premix when more than nozzle flow adjustable range on duty by adjusting flame tube head air mass flow
Stablize combustion range.
Invention content
The present invention provides a kind of burner inner liners of active control circulation area, are advised with solving existing flame tube head trepanning
Rule, assignment of traffic remain unchanged, the technical issues of leading to not adapt to reliable ignition starting and combustion with reduced pollutants.
The technical solution adopted by the present invention is as follows：
A kind of burner inner liner of active control circulation area, including burner inner liner back segment, be connected with burner inner liner back segment and be used to supply
Combustion gas and air enter the flame tube head of burner inner liner back segment, wherein flame tube head is provided with multiple blast tubes and multiple
Air duct, cyclone is provided in air duct, and combustion gas enters from blast tube and carried out with the air in air duct pre-
Burner inner liner back segment is entered with fuel-lean conditions swirl injection after mixed；The lateral wall of flame tube head, which also extends through, to be provided with for for sky
The inlet channel that gas enters, inlet channel are connected to air duct；The peripherally pivoted of lateral wall is arranged with variable cross-section ring, variable cross-section
Offer through-hole on ring, through-hole when variable cross-section ring rotates and the relative position of inlet channel connected state and be staggered state it
Between transformation to change the size of inlet channel circulation area.
Further, burner inner liner further includes the regulating device being connected with variable cross-section ring, and regulating device includes adjusting rod and sets
One end of the actuation mechanism being placed in outside combustion box, adjusting rod is connect with the outer wall of variable cross-section ring, the other end and actuation mechanism
Connection；Actuation mechanism is for driving adjusting rod displacement and then driving variable cross-section ring circumferentially rotated.
Further, fixed part, the threaded one end connection of fixed part and adjusting rod have been protruded outward on variable cross-section ring.
Optionally, actuation mechanism includes adjusting nut, and the end of adjusting nut is equipped with adjustment gear, and the one of adjustment gear
Side is provided with regulating valve, and the linear rack engaged with adjustment gear is provided in regulating valve, is additionally provided with and is used in regulating valve
The card slot of the other end of assembly connection adjusting rod；Torsional moment, which is converted to motive force, when adjusting nut rotates pushes regulating valve to move
It is dynamic, to push the adjusting rod displacement in card slot, and then drive the rotation of variable cross-section ring.
Optionally, three card slots are arranged at intervals in regulating valve along a straight line.
Further, burner inner liner further includes the area measuring device being fixed on outside combustion box, area measuring device dress
The other side assigned in adjustment gear, for incuding and measuring adjusting rod displacement and be converted into inlet channel circulation area in turn.
Further, adjusting nut is connect with peripheral control unit, the air capacity that peripheral control unit is used to be needed according to combustion gas
Nut rotation is controlled to adjust to adjust inlet channel circulation area.
Preferably, guide rail circumferentially is provided on the lateral wall of flame tube head, the madial wall of variable cross-section ring connects
It is connected to guide rail, variable cross-section ring is limited in axial direction by guide rail.
Preferably, scotch has been protruded out on the lateral wall of flame tube head, scotch is located at the rotation path of variable cross-section ring
On；The madial wall of variable cross-section ring is equipped with groove circumferentially, and the length of groove circumferentially is more than scotch circumferentially
Length, the end walls circumferentially of groove when variable cross-section ring rotates alternatively block in scotch.
Optionally, variable cross-section ring includes two half-turns connected by fastener.
The present invention is offered on variable cross-section ring logical by being arranged variable cross-section ring in the peripherally pivoted of flame tube head
Hole, through-hole when variable cross-section ring rotates and the relative position of the inlet channel of flame tube head connected state and be staggered state it
Between convert, with this structure can realize change inlet channel circulation area size, burner inner liner of the invention may be implemented actively control
The air mass flow of burner inner liner processed is distributed to match different fuel, to adapt to the reliable ignition and low stain of fuels with different heat values simultaneously
Burning, solves the problems, such as that the prior art cannot adapt to fuels with different heat values reliable ignition and combustion with reduced pollutants simultaneously；The fire of the present invention
Flame cylinder can be convenient for stablizing combustion by actively adjusting burner inner liner air mass flow substantially to expand premix when fuel flow rate is non-adjustable
Range is burnt, the stable burning adjustable range of solution prior art premix is small (can only to be controlled by adjusting the fuel flow rate of nozzle on duty
Burner inner liner premix processed stablizes combustion range) the problem of；The burner inner liner of the present invention, convenient for being formed with conducive to low stain in burner inner liner
The condition of burning realizes the discharge of low stain object, avoids different characteristics fuel to the unfavorable of burner inner liner service life and chamber performance
It influences；Using the burner inner liner of the present invention, it can exempt and replace asking for burner inner liner repeatedly because different fuel and operating mode need to be applicable in
Topic, the scope of application are wider.
Other than objects, features and advantages described above, the present invention also has other objects, features and advantages.
Below with reference to accompanying drawings, the present invention is described in further detail.
Description of the drawings
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
Example and its explanation are applied for explaining the present invention, is not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is the cross-section structure signal of one embodiment of the burner inner liner of active control circulation area of the present invention in an axial direction
Figure；
Fig. 2 is the internal structure schematic diagram of regulating device of the present invention；
Fig. 3 is the attachment structure schematic diagram of adjusting nut and adjustment gear in actuation mechanism of the present invention；
Fig. 4 is the schematic cross-sectional view of flame tube head of the present invention radially；
Fig. 5 is the structure principle chart that regulating device of the present invention is connect with variable cross-section ring；
Fig. 6 is the schematic diagram of the flame tube head and the cooperation of variable cross-section ring of another embodiment of the present invention.
Drawing reference numeral explanation：
1, burner inner liner back segment；2, flame tube head；20, blast tube；21, air duct；22, lateral wall；220, guide rail；
221, scotch；23, inlet channel；3, cyclone；4, variable cross-section ring；40, through-hole；41, fixed part；42, groove；43, end wall；
5, regulating device；50, adjusting rod；51, adjusting nut；52, adjustment gear；53, regulating valve；531, rack；532, card slot；6, face
Product measuring device；7, combustion box；8, fastener.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
Referring to Fig.1, the preferred embodiment of the present invention provides a kind of burner inner liner of active control circulation area, is suitable for combustion
Gas-turbine low pollution emission combustion chamber, especially by it is a kind of can the structure of active control circulation area make the burner inner liner in different works
There are high efficiency of combustion and low pollutant emission under condition or when burning different fuel, which can be used for the low dirt of gas turbine
Dye discharge combustion chamber, it can also be used to aero-engine, low stain metallurgical industrial furnace, petrochemical ind furnace, boiler, environmental protection
The low stain energy-saving combustion apparatus field of the Thermal Equipments such as pollutant process stove, the application of biomass regenerative resource.
The burner inner liner of the present invention includes burner inner liner back segment 1, is connected with burner inner liner back segment 1 and for entering for combustion gas and air
The flame tube head 2 of burner inner liner back segment 1.
Flame tube head 2 is provided with multiple blast tubes 20 and multiple air ducts 21.Rotation is provided in air duct 21
Flow device 3.Combustion gas is entered from blast tube 20 and is sprayed with fuel-lean conditions eddy flow after being premixed with the air in air duct 21
It injects into burner inner liner back segment 1.The lateral wall 22 of flame tube head 2 also extends through the inlet channel being provided with for entering for air
23, inlet channel 23 is connected to air duct 21.The peripherally pivoted of lateral wall 22 is arranged with variable cross-section ring 4, is opened on variable cross-section ring 4
Equipped with through-hole 40, through-hole 40 is when variable cross-section ring 4 is rotated with the relative position of inlet channel 23 in connected state and the state that is staggered
Between transformation to change the size of 23 circulation area of inlet channel.The present invention is being met by above structure to high in combustion chamber
On the basis of the leakproofness demand of warm high pressure gas, realize that flame tube head 2 inlet channel, 23 circulation areas are adjustable.The present invention's
The air mass flow that active control burner inner liner may be implemented in burner inner liner is distributed to match different fuel, is fired with adapting to different calorific values simultaneously
Reliable ignition and the combustion with reduced pollutants for expecting (such as biogas and natural gas), different calorific values cannot be adapted to simultaneously by solving the prior art
Fuel reliable ignition and combustion with reduced pollutants problem；The burner inner liner of the present invention can be convenient for passing through actively when fuel flow rate is non-adjustable
It adjusts burner inner liner air mass flow and stablizes combustion range substantially to expand premix, solve prior art premix and stablize burning adjustable range
The problem of small (combustion range can only be stablized by adjusting the fuel flow rate of nozzle on duty to control burner inner liner premix)；The present invention's
Burner inner liner realizes the discharge of low stain object, avoids different spies convenient for being formed with the condition conducive to combustion with reduced pollutants in burner inner liner
Adverse effect of the property fuel to burner inner liner service life and chamber performance；Using the burner inner liner of the present invention, can exempt because need to fit
The problem of replacing burner inner liner repeatedly with different fuel and operating mode, the scope of application are wider.
Referring to Fig.1, Fig. 4 and Fig. 5, in of the invention, the lateral wall 22 of flame tube head 2 circumferentially offers multiple air inlets and leads to
Road 23.Multiple inlet channels 23 are uniformly distributed.Inlet channel 23 can be that circular hole can also be square hole.4 upper edge of variable cross-section ring is justified
Offer multiple through-holes corresponding with air inlet hole path 40 week.Multiple through-holes 40 are uniformly distributed.Through-hole 40 can be that circular hole also may be used
To be square hole, size and number are consistent with the inlet channel 23 on the lateral wall 22 of flame tube head 2.Wherein, variable cross-section ring 4
When being rotated relative to flame tube head 2, through-hole 40 and the degree of overlapping of inlet channel 23 change to change the circulation of inlet channel 23
Thus sectional area achievees the purpose that adjust charge flow rate.
In conjunction with Fig. 2, further, burner inner liner further includes the regulating device 5 being connected with variable cross-section ring 4, and regulating device 5 includes
Adjusting rod 50 and the actuation mechanism being set to outside combustion box 7, one end of adjusting rod 50 are connect with the outer wall of variable cross-section ring 4,
The other end is connect with actuation mechanism.Actuation mechanism is for driving 50 displacement of adjusting rod and then driving variable cross-section ring 4 along the circumferential direction
Rotation.Electricity tune, hydraulic pressure or pneumatic mode driving 50 displacement of adjusting rod may be used in the regulating device 5 of the present invention, realizes that air inlet is logical
The adjusting control of 23 area of road.Design structure of the present invention is simple.Adjusting rod 50 is between variable cross-section ring 4 and combustion box 7
Air flow channel in, and be directly connected to variable cross-section ring 4.And actuation mechanism is then installed on combustion box 7, and positioned at burning
The outside of room casing 7.So design, since only adjusting rod 50 is located at variable cross-section ring 4 and combustion box in entire regulating device 5
In air flow channel between 7, thus the cross-sectional area that regulating device 5 occupies air flow channel can be minimized, to subtract as possible
The small influence to air flow channel.
In the present embodiment, variable cross-section ring 4 includes two half-turns connected by fastener 8.Variable cross-section ring 4 is designed as two
The structure that a half-turn is bolted together is convenient for the installation and removal of variable cross-section ring 4.Two half-turns are centered around outside flame tube head 2
It encloses, is fixed by bolt and nut between the two, it can be achieved that the secured connection of variable cross-section ring 4 and detachable.It is of course also possible to use card
Two half-turns are fixed together by buckle structure, can also use the connection of the other modes such as welding, the present invention is not limited thereto.
Further, as in Fig. 5, protruded outward fixed part 41, fixed part 41 and the one of adjusting rod 50 on variable cross-section ring 4
End is threadedly coupled.In the present embodiment, fixed part 41 is protruded outward on variable cross-section ring 4, the concavity of fixed part 41 is simultaneously equipped with interior
Screw thread.One end of adjusting rod 50 is equipped with external screw thread, and the external screw thread on adjusting rod 50 is connect with the screw-internal thread fit of fixed part 41.When
So, can also in 41 periphery setting external screw thread of fixed part, internal thread, the two phase interworking be set in 50 one end of adjusting rod in turn
Close connection.The adjusting rod 50 and 4 connection structure of variable cross-section ring of the present invention is simple, and realization is easy to disassemble while be reliably connected.
In Fig. 4, in this preferred embodiment, there are two fixed parts 41 for setting on variable cross-section ring 4, meanwhile, combustion box 7
Upper corresponding position is provided with openable and closable cover board and installation site with device for installing and adjusting 5.When one of fixed part 41 and tune
When the connection of regulating device 5 is for adjusting charge flow rate, another fixed part 41 is continued to employ in advance as emergent.Dress can be adjusted at one wherein
When setting 5 failure, it reserved 41 corresponding cover board of fixed part is opened and installs new regulating device 5 can be used continuously, release
The trouble of burner inner liner is dismantled, while repair replacing construction can be saved.In other embodiments, the position of fixed part 41 and quantity can
Design philosophy according to the invention is adjusted and changes.
With reference to Fig. 2, Fig. 3 and Fig. 5, in the present embodiment, actuation mechanism includes adjusting nut 51, the end peace of adjusting nut 51
Equipped with adjustment gear 52, the side of adjustment gear 52 is provided with regulating valve 53, is provided in regulating valve 53 and is nibbled with adjustment gear 52
The linear rack 531 closed is additionally provided with the card slot 532 for the other end of assembly connection adjusting rod 50 in regulating valve 53.It adjusts
Torsional moment, which is converted to motive force, when section nut 51 rotates pushes regulating valve 53 to move, to push the adjusting in card slot 532
50 displacement of bar, and then variable cross-section ring 4 is driven to rotate.In the present invention, adjusting nut 51 is rotating part, with peripheral control unit
Connection (not shown), end installation and adjustment gear 52, adjustment gear 52 are located at the top of regulating valve 53.The present embodiment makees motivation
Structure is simple in structure, implements and is conveniently operated convenient for being installed in flame tube head 2.
Optionally, three card slots 532 are arranged at intervals in regulating valve 53 along a straight line.According to actual installation situation, adjust
Bar 50 may be mounted in different card slots 532, and the scope of application is wider, and regulative mode is versatile and flexible.
Further, burner inner liner further includes the area measuring device 6 being fixed on outside combustion box 7, area measuring device 6
It is assemblied in the other side of adjustment gear 52.In Fig. 4, area measuring device 6 is fixed on combustion box 7, for incuding simultaneously
It measures 50 displacement of adjusting rod and and then is converted into 23 circulation area of inlet channel.Area measuring device 6 is assemblied in adjustment gear
52 tops, and the outside being fixed on combustion box 7.Digital area measurement can be used in the area measuring device 6 of the present invention
Device 6 is provided with the displacement sensor of the displacement for inductively measuring adjusting rod 50 in the area measuring device 6, and will adjust
It is straight to be converted to 23 area of section numerical value of inlet channel for real variable of the displacement of pole 50 as 23 area of section of inlet channel
It connects and is shown on the display panel of area measuring device 6, convenient for the energy when adjusting 2 23 circulation area of inlet channel of flame tube head
The circulation area in simultaneously vision-control channel is measured in time.
Further, adjusting nut 51 is connect with peripheral control unit (not shown), and peripheral control unit is used for according to combustion gas need
The air capacity wanted controls to adjust nut 51 and rotates to adjust 23 circulation area of inlet channel.It is exchanged using peripheral control unit realization
The control of nut 51 is saved, is adjusted accurately, fast, is saved manpower, be easy to implement automation.
In Fig. 1, it is preferable that be provided with guide rail 220 circumferentially on the lateral wall 22 of flame tube head 2, become and cut
The madial wall of face ring 4 is connected to guide rail 220, and variable cross-section ring 4 is limited in axial direction by guide rail 220.In the present embodiment, guide rail 220 is
The ridge protruded outward from 2 lateral wall 22 of flame tube head, the madial wall of variable cross-section ring 4 are correspondingly arranged the matched connection of slot.
In other embodiments, the installation position of slot and ridge can also exchange.The guide rail 220 that the present invention designs not only may be implemented to cut to becoming
The rotation of face ring 4 plays guiding function, moreover it is possible to which the movement for limiting variable cross-section ring 4 in the axial direction prevents variable cross-section ring 4 because in burner inner liner
Portion's high-voltage high-speed airflow generates impact and shakes, displacement is even detached from, and is allowed to be assemblied in burner inner liner head more solid and reliablely
2 periphery of portion, to ensure that it realizes the function of adjusting 23 circulation area of inlet channel so that regulatory function is more accurate reliable.
In Fig. 6, in the present embodiment, accurate and controllable adjusting is carried out to 23 circulation area of inlet channel to realize,
It is designed with stop area between flame tube head 2 and variable cross-section ring 4.Specifically, it has been protruded out only on the lateral wall 22 of flame tube head 2
Motion block 221, scotch 221 are located on the rotation path of variable cross-section ring 4.The madial wall of variable cross-section ring 4 is equipped with circumferentially
Groove 42, the length of groove 42 circumferentially be more than the length of scotch 221 circumferentially, circumferentially two end walls of groove 42
43 when variable cross-section ring 4 rotates alternatively block in scotch 221.Variable cross-section ring 4 so can be achieved to rotate in restriction range,
Prevent its rotation from excessively causing adjusting area uncontrollable.
Its action principle of the burner inner liner of active control circulation area of the present invention is as follows：
It is slight to adjust adjusting nut 51 when initial installation, so that 23 section of inlet channel is closed, digital area measurement is filled
Set 6 zero setting.When using fuels with different heat values, peripheral control unit adjusts circulation area, control according to the air capacity of fuel requirement
Adjusting nut 51 rotate, adjusting nut 51 by snib structure torsional moment drive adjustment gear 52 rotate, adjustment gear 52 with
Regulating valve 53 is engaged by gear, to which torsional moment is converted to thrust movement regulating valve 53, and pushes 53 card slot 532 of regulating valve
In adjusting rod 50, while area measuring device 6 can incude and measure the displacement of adjusting rod 50, i.e. 23 section face of inlet channel
Long-pending real variable；Variable cross-section ring 4 is then pushed by adjusting rod 50, and the air inlet of through-hole 40 and flame tube head 2 thereon is changed
The relative position in channel 23 realizes the adjusting of burner inner liner assignment of traffic to change the size of 23 circulation area of inlet channel, full
The reliable ignition of sufficient fuels with different heat values and combustion with reduced pollutants.
The invention has the advantages that：
1, the present invention in the peripherally pivoted of flame tube head 2 by being arranged variable cross-section ring 4, and is opened up on variable cross-section ring 4
There is through-hole 40, through-hole 40 is when variable cross-section ring 4 is rotated with the relative position of the inlet channel 23 of flame tube head 2 in connected state
It is converted between the state that is staggered, the size for changing 23 circulation area of inlet channel, burner inner liner of the invention can be realized with this structure
The air mass flow that active control burner inner liner may be implemented is distributed to match different fuel, can with adapt to fuels with different heat values simultaneously
By igniting and combustion with reduced pollutants, the solution prior art cannot adapt to fuels with different heat values reliable ignition simultaneously and combustion with reduced pollutants is asked
Topic；
2, burner inner liner of the invention can be convenient for when fuel flow rate is non-adjustable by actively adjusting burner inner liner air mass flow
Stablize combustion range substantially to expand premix, the stable burning adjustable range of solution prior art premix is small can only be on duty by adjusting
The fuel flow rate of nozzle premixes the problem of stablizing combustion range to control burner inner liner.
3, burner inner liner of the invention realizes low stain convenient for being formed with the condition conducive to combustion with reduced pollutants in burner inner liner
Object discharges, and avoids adverse effect of the different characteristics fuel to burner inner liner service life and chamber performance.
4, using the burner inner liner of the present invention, it can exempt and replace burner inner liner repeatedly because different fuel and operating mode need to be applicable in
The problem of, the scope of application is wider.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of burner inner liner of active control circulation area, which is characterized in that including burner inner liner back segment (1) and the burner inner liner
Back segment (1) is connected and the flame tube head (2) for entering the burner inner liner back segment (1) for combustion gas and air, wherein
The flame tube head (2) is provided with multiple blast tubes (20) and multiple air ducts (21), the air duct
(21) be provided with cyclone (3) in, combustion gas enter from the blast tube (20) and with the air in the air duct (21)
The burner inner liner back segment (1) is entered with fuel-lean conditions swirl injection after being premixed；
The lateral wall (22) of the flame tube head (2) also extends through the inlet channel (23) being provided with for entering for air, institute
Inlet channel (23) is stated to be connected to the air duct (21)；
The peripherally pivoted of the lateral wall (22) is arranged with variable cross-section ring (4), and through-hole is offered on the variable cross-section ring (4)
(40), the through-hole (40) is when the variable cross-section ring (4) rotates and the relative position of the inlet channel (23) is in connected state
Transformation is to change the size of inlet channel (23) circulation area between state and the state that is staggered.
2. the burner inner liner of active control circulation area according to claim 1, which is characterized in that the burner inner liner further includes
The regulating device (5) being connected with the variable cross-section ring (4), the regulating device (5) include adjusting rod (50) and are set to burning
The actuation mechanism of room casing (7) outside,
One end of the adjusting rod (50) is connect with the outer wall of the variable cross-section ring (4), and the other end is connect with the actuation mechanism；
The actuation mechanism is for driving the adjusting rod (50) displacement and then the variable cross-section ring (4) being driven along the circumferential direction to turn
It is dynamic.
3. the burner inner liner of active control circulation area according to claim 2, which is characterized in that
Fixed part (41), the fixed part (41) and the one of the adjusting rod (50) have been protruded outward on the variable cross-section ring (4)
End is threadedly coupled.
4. the burner inner liner of active control circulation area according to claim 2, which is characterized in that
The actuation mechanism includes adjusting nut (51), and the end of the adjusting nut (51) is equipped with adjustment gear (52), institute
The side for stating adjustment gear (52) is provided with regulating valve (53), is provided on the regulating valve (53) and the adjustment gear (52)
The linear rack (531) of engagement is additionally provided with for the another of adjusting rod described in assembly connection (50) on the regulating valve (53)
The card slot (532) of one end；
Torsional moment, which is converted to motive force, when adjusting nut (51) rotation pushes regulating valve (53) mobile, to push card
Adjusting rod (50) displacement in slot (532), and then drive variable cross-section ring (4) rotation.
5. the burner inner liner of active control circulation area according to claim 4, which is characterized in that
Three card slots (532) are arranged at intervals on the regulating valve (53) along a straight line.
6. the burner inner liner of active control circulation area according to claim 4, which is characterized in that
The burner inner liner further includes being fixed on the area measuring device (6) of combustion box (7) outside, the area measuring device
(6) it is assemblied in the other side of the adjustment gear (52), for incuding and measuring the adjusting rod (50) displacement and and then turn
Turn to inlet channel (23) circulation area.
7. the burner inner liner of active control circulation area according to claim 4, which is characterized in that
The adjusting nut (51) connect with peripheral control unit, the air capacity control that the peripheral control unit is used to be needed according to combustion gas
The adjusting nut (51) rotation is made to adjust inlet channel (23) circulation area.
8. the burner inner liner of active control circulation area according to claim 1, which is characterized in that
Guide rail (220) circumferentially, the variable cross-section ring are provided on the lateral wall (22) of the flame tube head (2)
(4) madial wall is connected to the guide rail (220), and the variable cross-section ring (4) is limited in axial direction by the guide rail (220).
9. the burner inner liner of active control circulation area according to claim 1, which is characterized in that
Scotch (221) is protruded out on the lateral wall (22) of the flame tube head (2), the scotch (221) is located at described
On the rotation path of variable cross-section ring (4)；
The madial wall of the variable cross-section ring (4) is equipped with groove (42) circumferentially, the length of the groove (42) circumferentially
Degree is more than the length of the scotch (221) circumferentially, and the end walls (43) circumferentially of the groove (42) are cut in described become
Face ring (4) rotate when alternatively block in the scotch (221).
10. the burner inner liner of active control circulation area according to claim 1, which is characterized in that
The variable cross-section ring (4) includes two half-turns connected by fastener (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810437321.6A CN108626750B (en) | 2018-05-09 | 2018-05-09 | Flame tube capable of actively controlling flow area |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810437321.6A CN108626750B (en) | 2018-05-09 | 2018-05-09 | Flame tube capable of actively controlling flow area |
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| Publication Number | Publication Date |
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| CN108626750A true CN108626750A (en) | 2018-10-09 |
| CN108626750B CN108626750B (en) | 2020-06-19 |
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| CN201810437321.6A Active CN108626750B (en) | 2018-05-09 | 2018-05-09 | Flame tube capable of actively controlling flow area |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110836383A (en) * | 2019-11-15 | 2020-02-25 | 中国科学院工程热物理研究所 | High-temperature flue gas generator and control method thereof |
| CN110849628A (en) * | 2019-10-14 | 2020-02-28 | 中国北方发动机研究所(天津) | Combustion chamber of adjustable flame tube of turbocharger test bed |
| CN111594873A (en) * | 2020-05-11 | 2020-08-28 | 萧县煜成石油设备有限公司 | Gas flow guide control device of combustion chamber |
| CN111780163A (en) * | 2020-06-23 | 2020-10-16 | 江苏大学 | Swirler with continuously adjustable outlet airflow strength |
| CN113819490A (en) * | 2021-09-26 | 2021-12-21 | 中国航发湖南动力机械研究所 | Flame tube air flow regulation and control structure |
| CN115435336A (en) * | 2022-09-01 | 2022-12-06 | 中国航发贵阳发动机设计研究所 | Flame stabilizer structure with adjustable blocking ratio |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110849628A (en) * | 2019-10-14 | 2020-02-28 | 中国北方发动机研究所(天津) | Combustion chamber of adjustable flame tube of turbocharger test bed |
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| CN111594873B (en) * | 2020-05-11 | 2022-01-11 | 萧县煜成石油设备有限公司 | Gas flow guide control device of combustion chamber |
| CN111780163A (en) * | 2020-06-23 | 2020-10-16 | 江苏大学 | Swirler with continuously adjustable outlet airflow strength |
| CN113819490A (en) * | 2021-09-26 | 2021-12-21 | 中国航发湖南动力机械研究所 | Flame tube air flow regulation and control structure |
| CN115435336A (en) * | 2022-09-01 | 2022-12-06 | 中国航发贵阳发动机设计研究所 | Flame stabilizer structure with adjustable blocking ratio |
| CN115435336B (en) * | 2022-09-01 | 2024-04-09 | 中国航发贵阳发动机设计研究所 | Flame stabilizer structure with adjustable blocking ratio |
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