CN110425525A - A kind of planar pressing surfaces flame combustion apparatus - Google Patents

A kind of planar pressing surfaces flame combustion apparatus Download PDF

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Publication number
CN110425525A
CN110425525A CN201910691901.2A CN201910691901A CN110425525A CN 110425525 A CN110425525 A CN 110425525A CN 201910691901 A CN201910691901 A CN 201910691901A CN 110425525 A CN110425525 A CN 110425525A
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China
Prior art keywords
air cavity
pedestal
inner core
capillary
fuel
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CN201910691901.2A
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CN110425525B (en
Inventor
王昱升
栗晶
陈前云
柳朝晖
张泰�
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Huazhong University of Science and Technology
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Huazhong University of Science and Technology
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J15/00Sealings
    • F16J15/02Sealings between relatively-stationary surfaces
    • F16J15/06Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • 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
    • 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D1/00Devices using naturally cold air or cold water
    • F25D1/02Devices using naturally cold air or cold water using naturally cold water, e.g. household tap water
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0056Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

Abstract

The invention belongs to the reacting dynamics characteristics research fields such as the kindling of solid fuel particle, burning and gasification, disclose a kind of planar pressing surfaces flame combustion apparatus.The burner body of the device is equipped with oxidation air cavity and water cooling cavity, aoxidizes air cavity upper end opening, and inner core is installed at center;The interior of oxidation air cavity is equipped with the cooling cavities being individually isolated;Pedestal includes fuel air cavity, and fuel air cavity is located at immediately below oxidation air cavity, and sealing plate will aoxidize air cavity and the isolation of fuel air cavity;Flat flame capillary inner core includes ceramic honey comb block, capillary array and to tube cell.The present invention finally forms stable non-premixed flat flame in ceramic honey comb block top surface, forms the flue gas environment of high temperature, the high rate of heat addition by separately transmitting and rectifying oxic gas and fuel gas;And hot compression deformation and thermal failure are prevented by water-cooled cooling, sealing plate cooperates O-ring sealing, allows the invention to work in steadily in the long term under high temperature, hyperbaric environment.

Description

A kind of planar pressing surfaces flame combustion apparatus
Technical field
The invention belongs to the reacting dynamics characteristics research field such as the kindling of discrete solid fuel particle, burning and gasification, It is related to a kind of planar pressing surfaces flame combustion apparatus, more particularly, to a kind of suitable for the controllably high for tissue of optical measurement The flat flame burner of warm hyperbaric environment.
Background technique
The reacting dynamics characteristics such as micron, the kindling of nano-powder fuel, burning and gasification, the design for burner With important reference significance.In practical applications, powder reaction is often in the extreme high temperature and high pressure environment of comparison, and There is high heating rate, most of laboratory equipments are difficult to reach such requirement in Actual combustion environment.It therefore, can be with There is provided high temperature and high pressure environment and enabling to combustion system of the particle with higher heating rate is the emphasis of current research.
There are many different types of pressurized, heated systems at present, as pressurized thermogravimetry, pressure dropper furnace, pressurization are solid Fixed bed, planar pressing surfaces flame furnace etc., but there is limitation in these systems: and high pressure TGA can only study the particle under stationary state Burning, and heating temperature is low (generally below 1273K), the rate of heat addition is slow (3-200K/min);Pressure dropper furnace can reach high temperature The environment of high pressure, but its rate of heat addition only up to reach 103-104K/s;Pressurization static bed reactant is mostly bulky grain or heap Accumulated powder layer, and temperature has larger gap with practical application generally also between 723-1273K.
Therefore, it needs that stability plane flame can be provided under pressurized environment, and has both the pressurization of high temperature, the high rate of heat addition Flat flame burner.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of planar pressing surfaces flame combustion dresses It sets, it is intended that being designed by a point storehouse, fuel gas and oxygen is shunted in conjunction with capillary array, current stabilization, in burner Upper end face forms stable Nonpremixed flames face, is aided with water-cooled cooling and guarantees that the heat-resisting of burner is held under high-temperature and high-pressure conditions Performance is pressed, so as to provide the stability plane flame of more combustion temperatures under pressurized environment, and then promotes the rate of heat addition.
To achieve the above object, according to one aspect of the present invention, a kind of planar pressing surfaces flame combustion apparatus is provided, is wrapped It includes: burner body, flat flame capillary inner core, pedestal;
Burner body is equipped with inner core installation room and oxidation air cavity, and inner core installs room upper end opening, lower end and oxic gas Cavity connection;The interior of inner core installation room is equipped with the cooling cavities being isolated with oxidation air cavity;
Burner body is fixed on base upper surface, passes through sealing plate between the lower surface and base upper surface of burner body Sealing;
Pedestal includes fuel air cavity, oxidation gas inlet pipe, fuel gas inlet pipe, cooling chamber inlet tube and cooling chamber outlet Pipe;Fuel air cavity is located at immediately below oxidation air cavity, and sealing plate will aoxidize air cavity and the isolation of fuel air cavity;
Flat flame capillary inner core includes ceramic honey comb block, capillary array and to tube cell;Capillary array and give powder Pipe is inserted and is sealingly fastened on sealing plate;Capillary array upper end is connected to the honeycomb hole of ceramic honey comb block corresponding position, lower end position In in fuel air cavity;There are gaps between each capillary of capillary array, and gap connection ceramic honey comb block is corresponding The honeycomb hole of position;It is located at capillary array center to tube cell, to the centre bore of tube cell upper end connection ceramic honey comb block, lower end is naked It is exposed to base outer surface;Aoxidize gas inlet pipe connection fuel air cavity and base exterior space;The connection oxidation of fuel gas inlet pipe Air cavity and base exterior space;The upper end of cooling chamber inlet tube and the upper end of cooling chamber outlet sequentially pass through pedestal, envelope Enter cooling cavities after plate, to be connected to cooling cavities and base exterior space.
Further, filled with rectification microballon in fuel air cavity, rectification microballon is made of inert material.
Further, oxidation gas inlet pipe quantity is two, about the axisymmetrical for giving tube cell;Cooling chamber inlet tube and cold But chamber outlet is about the axisymmetrical for giving tube cell.
Further, fuel gas inlet pipe quantity is two, about the axisymmetrical for giving tube cell.
Further, close to cooling cavities upper surface, the upper end of cooling chamber outlet is close for the upper end of cooling chamber inlet tube Cooling cavities lower end surface.
Further, inner core installation room and the cross section of ceramic honey comb block are rectangular, and capillary array is square array.
Further, burner body includes upper end and lower flange, upper end be it is cylindric, be sealingly fastened in lower flange Upper surface;Inner core installs room and cooling cavities is set in upper end;Air cavity is aoxidized as stepped hole construction, the macropore of upper end is set In in upper end and below cooling cavities, the aperture of lower end is located in lower flange, and the upper surface of sealing plate is the aperture of lower end Lower boundary.
Further, inner core installation ceiling end offers rectangular quartz ampoule installing port.
In general, the above technical scheme conceived by the present invention compared with prior art, can obtain following beneficial to effect Fruit:
(1) present invention is provided with water cooling cavity in burner body and cools down, and reduces the heat under high temperature and high pressure environment Deformation, so that planar pressing surfaces flame combustion apparatus of the invention can for a long time, steadily work in high temperature, hyperbaric environment Under, be conducive to the smooth development of the reacting dynamics characteristics research experiment such as kindling, burning and gasification of solid fuel particle;And And by the way that oxic gas is separated design, fuel for gas storehouse (i.e. fuel air cavity) with fuel gas for gas storehouse (i.e. oxidation air cavity) Capillary transportation and rectification of the gas by array arrangement, and gap transmission and rectification of the oxic gas by capillary, and on top It is further rectified by ceramic honey comb block, finally forms stable Nonpremixed flames face in ceramic honey comb block top surface, what is obtained is flat Face flame rear portion flue gas environment has uniform Temperature Distribution, can generate the stabilization flue-gas temperature of 1200-2000K, penetrating The rate of heat addition of grain has the characteristics that high temperature, high burn rate, closest to the actual rings of particle burning up to 105-106K/s Border.
(2) fuel gas inlet jet stream is broken up by the inertia rectification microballon filled in cavity, is tentatively rectified, so that into The air-flow for entering capillary is uniform.
(3) by the sealing fixation for dividing storehouse design to combine sealing plate, so that the sealing structure of entire burner can be full Sufficient high voltage demands, can cooperate combustion system pressure housing realize controllable compression hot environment, can adapt to bigger temperature and In pressure limit, the adjusting of different ignition temperatures and reaction pressure.
(4) rectangular quartz ampoule installing port is set at inner core installation ceiling end, rectangular quartz ampoule can be installed, and inner core Generally rectangular, obtained rectangular flame profile constrains flow field with rectangular quartz ampoule, to be suitable for carrying out various The optical diagnostics of form.
(5) upper end of burner body is set as cylindric and surface is smooth, be conducive to cooperate the means that are slidingly sealed will Burner body is inserted into the sealed pressure cavity of high-temperature high-pressure combustion system.
(6) planar pressing surfaces flame combustion apparatus of the invention is compact-sized, and small volume, performance are stablized, sustainable use, And all parts can be individually replaced, easy to maintain.
Detailed description of the invention
Fig. 1 is a kind of simple schematic diagram of structure of planar pressing surfaces flame combustion apparatus provided by the present application;
Fig. 2, Fig. 3 are the facing of a kind of planar pressing surfaces flame combustion apparatus provided by the present application, lateral sectional view respectively;
Fig. 4 is a kind of top view of planar pressing surfaces flame combustion apparatus provided by the present application;
Fig. 5 is a kind of bottom view of planar pressing surfaces flame combustion apparatus provided by the present application.
In all the appended drawings, identical appended drawing reference is used to denote the same element or structure, in which:
1- burner body, 2- flat flame capillary inner core, 3- pedestal, 4- ceramic honey comb block, 5- capillary array, 6- Square hole plectane, 7- fastening bolt, 8- sealing plate, 9- pedestal O-ring slot, 10- aoxidize gas inlet pipe, and 11- rectifies microballon, 12- fuel Gas inlet pipe, 13- export NPT screw thread, 17- to tube cell to tube cell, 14- burner body O-ring slot, the bis- O-ring slots of 15-, 16- Cooling chamber inlet tube, 18- locating slot, 19- cooling chamber inlet/outlet pipe NPT screw thread, 20- cooling chamber outlet, 21- cooling cavities, 22- aoxidizes air cavity, 23- fuel air cavity, the upper end 24-, 25- lower flange.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and It is not used in the restriction present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below Not constituting a conflict with each other can be combined with each other.
As shown in attached drawing 1~5, a kind of planar pressing surfaces flame combustion apparatus of the preferred embodiment of the present invention, by burner master Body 1, flat flame capillary inner core 2, pedestal 3 form.
Burner body 1 is equipped with inner core installation room and oxidation air cavity 22, and inner core installs room upper end opening, lower end and oxidation Air cavity 22 is connected to.The interior of inner core installation room is equipped with the cooling cavities 21 being isolated with oxidation air cavity 22.Burner master Body 1 is fixed on 3 upper surface of pedestal, is sealed between 3 upper surface of lower surface and pedestal of burner body 1 by sealing plate 8.
Pedestal 3 includes fuel air cavity 23, oxidation gas inlet pipe 10, fuel gas inlet pipe 12,17 and of cooling chamber inlet tube Cooling chamber outlet 20.Fuel air cavity is located at immediately below oxidation air cavity, and sealing plate 8 will aoxidize air cavity 22 and fuel air cavity 23 isolation.
Flat flame capillary inner core 2 is including ceramic honey comb block 4, capillary array 5 and gives tube cell 13.Capillary array 5 With to tube cell 13 insert and be sealingly fastened on sealing plate 8.The bee of 5 upper end of capillary array connection, 4 corresponding position of ceramic honey comb block Socket bore, lower end are located in fuel air cavity 23.There are gaps between each capillary of capillary array 5, and the gap is connected to The honeycomb hole of 4 corresponding position of ceramic honey comb block.It is located at 5 center of capillary array to tube cell 13, is connected to honeycomb to 13 upper end of tube cell The centre bore of ceramic block 4, lower end are exposed to 3 outer surface of pedestal.Gas inlet pipe 10 is aoxidized to be connected to outside fuel air cavity and pedestal 3 Space.The connection of fuel gas inlet pipe 12 oxidation air cavity 22 and 3 exterior space of pedestal.The upper end of cooling chamber inlet tube 17 and cooling The upper end of chamber outlet 20 enters cooling cavities 21 after sequentially passing through pedestal 3, sealing plate 8, to be connected to cooling cavities 21 and pedestal 3 Exterior space.
Preferably, to ensure that the air-flow in each capillary is uniform and stable, filled with rectification microballon in fuel air cavity 23 11, the jet stream of fuel gas inlet pipe 12 is broken up in advance by rectifying microballon 11.
In the present embodiment, oxidation 10 quantity of gas inlet pipe is two, about the axisymmetrical for giving tube cell 13.Cooling chamber into Mouth pipe 17 and cooling chamber outlet 20 are about the axisymmetrical for giving tube cell 13.Two 10 place planes of oxidation gas inlet pipe and cooling The angle of 20 place plane of chamber inlet tube 17 and cooling chamber outlet is 90 degree.Oxidation gas inlet pipe 10 is inserted into below pedestal 3 To burner body 1, aoxidizing air cavity 22 by the L-type pipeline connection built in burner body 1 (can also be passed directly into oxidation In air cavity 22, specific arrangement method is unrestricted, and flexibly setting can be required according to practical pipe-line layout).Fuel gas inlet pipe 12 quantity are two, about the axisymmetrical for giving tube cell 13.Two 12 place planes of fuel gas inlet pipe and cooling chamber inlet tube 17 and the angle of 20 place plane of cooling chamber outlet be 45 degree.Here 90 degree and 45 degree are for arranging different pipeline intervals Column guarantee not interfere with each other between pipeline, and burner base pipeline has enough spanner spaces to carry out piping connection operation, Above-mentioned angle can be freely set according to the actual situation.
In other embodiments, according to the requirement of different flow, flow velocity, gas inlet pipe 10, fuel gas inlet pipe 12 are aoxidized It may be alternatively provided as three or more, be uniformly distributed.
Preferably, the upper end of cooling chamber inlet tube 17 is close to 21 upper surface of cooling cavities, the upper end of cooling chamber outlet 20 Close to 21 lower end surface of cooling cavities, to extend the circulation path of coolant liquid, cooling effect is promoted.
Preferably, upper end top offers rectangular quartz ampoule installing port, and inner core installs the cross of room and ceramic honey comb block 4 Section be it is rectangular, capillary array 5 be square array, rectangular flat flame is consequently formed, and by rectangular in combustion system Quartz ampoule carries out flow field constraint, is conducive to carry out various forms of optical diagnosticses.If not considering optical diagnostics problem, inner core peace The cross sectional shape of dress room and quartz ampoule can arbitrarily be set according to actual needs, such as be set as round.
In addition, the present embodiment uses stair-stepping design, burner body 1 includes upper end 24 and lower flange 25, upper end Portion 24 be it is cylindric, be sealingly fastened in the upper surface of lower flange 25.Inner core installs room and cooling cavities 21 is set in upper end 24. Air cavity 22 is aoxidized as stepped hole construction, the macropore of upper end is set in upper end 24 and is located at 21 lower section of cooling cavities, lower end Aperture is located in lower flange 25, and the upper surface of sealing plate 8 is the lower boundary of the aperture of lower end.
2~5 pairs of some auxiliary seal measures of the invention and specific assembling process carry out more with reference to the accompanying drawing Careful introduction.
In the present embodiment, 1 shape of burner body is stepped cylinder shape, and the lesser one end of diameter is upper end 24, directly The biggish one end of diameter is lower flange 25, and there is the square hole (i.e. inner core installation room) got through at 1 center of burner body, slotting for cooperating Enter flat flame inner core.Burner body 1 is shaped by the way of separately manufacturing, welding assembly.The side wall and cylinder of square hole Cooling cavities 21 is provided in housing slot, 21 lower surface of cooling cavities is by 6 welded seal of square hole plectane.It is pre- in square hole plectane 6 There are symmetrical circular holes, for sealing installation cooling chamber inlet tube 17 and cooling chamber outlet 20 (can also by welding To use high temperature sealing material, such as refractory seals glue to be sealed installation).Include oxidation air cavity in burner body 1 Body 22 is symmetrically arranged with oxidation gas inlet pipe 10 in lower flange 25, and oxidation gas inlet pipe 10 is inserted into below pedestal 3, via L-type Pipeline is passed through from the side wall surface of square hole, and the mode for first getting through filler behind hole can be used in processing method.It opens the lower surface of lower flange 25 There is main body O-ring slot 14, cooperation O-ring and sealing plate 8 further promote pressure-resistant seal performance.
3 shape of pedestal is stepped cylinder shape, and the one end being relatively large in diameter is upper flange, and the lesser one end of diameter is lower end Portion.Upper flange surface is equally provided with pedestal O-ring slot 9.3 are provided with square groove for cooperating in holding plane flame in pedestal Core, rectification microballon 11 (preferably inert material, zirconium oxide, glass) is put into inside slot, and rectification microballon should be protected with capillary port The gap 5mm is held, fuel gas inlet jet stream is broken up by intensive inert microbeads, plays the role of rectification.Upper flange lower surface Circumferentially arranged there are six locating slots 18, and positioning pin can be inserted or fastening screw is positioned and fixed, for will entirely fire Device is burnt to install to the pressurized casing of combustion system.The bottom of lower end by way of directly punching, setting fuel gas into Mouth pipe 12.
Flat flame capillary inner core is by sealing plate 8, capillary array 5, ceramic honey comb 4 and the assembling of tube cell 13 is given to be formed.Envelope The circular hole that 8 center of plate is arranged between being equipped with intensively, capillary are passed through from circular hole, extend to 4 corresponding position of ceramic honey comb block.Sealing plate 8 Fixation is sealed by way of injecting glue after capillary insertion.
Final burner assembly result is as shown in Figures 1 to 3.Flat flame capillary inner core 2 passes through reserved side by lower section Burner body 1 is inserted into shape hole, so that its sealing plate 8 is close to 1 lower surface of burner body, core upper surface and burner at this time 1 upper surface of main body is in the same plane, then this integral part is combined with pedestal 3, all to be fixed on burner body 1 Pipeline is inserted in corresponding aperture, is stretched out immediately below pedestal 3, is fixed by fastening screw 7 and is pressurizeed to get to complete Flat flame burner.
The sealing of entire planar pressing surfaces flame combustion apparatus is all satisfied bearing requirements.Burner body 1 and 3 interconnecting piece of pedestal Position sealing plate 8 with two symmetrical O-rings for being located at O-ring slot 9,14 compresses sealing.It is located at 3 lower end of pedestal to tube cell 13 Outlet is preset with NPT sealing screw thread 12 and tube outlet can be realized using ferrule fitting or vacuum adapter with sealing screw thread Removable seal (also can be used in other embodiments injecting glue sealing).Oxidation gas inlet pipe 10 is located at burner body 1 Outlet by welding or injecting glue sealing, had been positioned under atmospheric pressure environment by the outlet of pedestal 3, without sealing.Cooling chamber into Mouth pipe 17, cooling chamber outlet 20 are located at the outlet of 1 lower flange 25 of burner body there are double O-ring slots 15, pass through and are pressed into double O Type circle is sealed;Positioned at the outlet of 3 lower end of pedestal, it is preset with NPT sealing screw thread 19, uses the cutting ferrule with sealing screw thread The removable seal of tube outlet can be realized in connector or vacuum adapter.Fuel gas inlet pipe 12 can be welded direct to pedestal 3 Lower flange corresponding position.
The present invention is cooperated by smooth cylinder upper end formation with other sealing structures, and passes through double O between itself component Type circle cooperates sealing plate 8 to compress sealing, is applicable under pressurized environment.Circular burner body structure guarantees to facilitate cooperation Hole is inserted into the sealing of various pressure vessels, and cooling cavities 21 ensure that the temperature safety of all sealing positions and reduce thermal change Shape.Surface forms flat flame to the capillary of final spaced array arrangement on the burner, and square planar flame inner core is suitable for Optical measurement.Burner upper end is reserved with quartz ampoule and places slot position, and rear portion flue gas field can be by suprasil tubing.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, not to The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include Within protection scope of the present invention.

Claims (8)

1. a kind of planar pressing surfaces flame combustion apparatus, comprising: pressure combustion device main body (1), flat flame capillary inner core (2), It pressurizes pedestal (3);
Burner body (1) is equipped with inner core installation room and oxidation air cavity (22), and inner core installs room upper end opening, lower end and oxidation Air cavity (22) connection;The interior of inner core installation room is equipped with the cooling cavities (21) being isolated with oxidation air cavity (22);
Burner body (1) is fixed on pedestal (3) upper surface, between the lower surface and pedestal (3) upper surface of burner body (1) Sealing plate (8) sealing is clamped by O-ring;
Pedestal (3) includes fuel air cavity (23), oxidation gas inlet pipe (10), fuel gas inlet pipe (12), cooling chamber inlet tube (17) and cooling chamber outlet (20);Fuel air cavity is located at immediately below oxidation air cavity, and sealing plate (8) will aoxidize air cavity (22) It is isolated with fuel air cavity (23);
Flat flame capillary inner core (2) includes ceramic honey comb block (4), capillary array (5) and to tube cell (13);Capillary battle array It arranges (5) and inserts and be sealingly fastened on sealing plate (8) to tube cell (13);Capillary array (5) upper end is connected to ceramic honey comb block (4) The honeycomb hole of corresponding position, lower end are located in fuel air cavity (23);Between each capillary of capillary array (5) there are Gap, and the honeycomb hole of gap connection ceramic honey comb block (4) corresponding position;It is located at capillary array (5) center to tube cell (13), To the centre bore of tube cell (13) upper end connection ceramic honey comb block (4), lower end is exposed to pedestal (3) outer surface;Aoxidize gas inlet pipe (10) connection oxidation air cavity (22) and pedestal (3) exterior space;Fuel gas inlet pipe (12) be connected to fuel air cavity (23) with Pedestal (3) exterior space;The upper end of cooling chamber inlet tube (17) and the upper end of cooling chamber outlet (20) sequentially pass through pedestal (3), sealing plate (8) enters cooling cavities (21) afterwards, to be connected to cooling cavities (21) and pedestal (3) exterior space.
2. a kind of planar pressing surfaces flame combustion apparatus as described in claim 1, which is characterized in that filled out in fuel air cavity (23) Filled with rectification microballon (11), rectification microballon (11) is made of inert material.
3. a kind of planar pressing surfaces flame combustion apparatus as described in claim 1, which is characterized in that oxidation gas inlet pipe (10) number Amount is two, about the axisymmetrical for giving tube cell (13);Cooling chamber inlet tube (17) and cooling chamber outlet (20) are about to powder Manage the axisymmetrical of (13).
4. a kind of planar pressing surfaces flame combustion apparatus as claimed in claim 3, which is characterized in that fuel gas inlet pipe (12) number Amount is two, about the axisymmetrical for giving tube cell (13).
5. a kind of planar pressing surfaces flame combustion apparatus as claimed in claim 3, which is characterized in that cooling chamber inlet tube (17) Upper end is close to cooling cavities (21) lower end surface, and the upper end of cooling chamber outlet (20) is close to cooling cavities (21) upper surface.
6. a kind of planar pressing surfaces flame combustion apparatus as claimed in any one of claims 1 to 5, wherein, which is characterized in that inner core peace Fill the cross section of room and ceramic honey comb block (4) be it is rectangular, capillary array (5) is square array.
7. a kind of planar pressing surfaces flame combustion apparatus as claimed in any one of claims 1 to 5, wherein, which is characterized in that burner Main body (1) includes upper end (24) and lower flange (25), upper end (24) be it is cylindric, outer surface roughness degree is less than Ra6.3, It is fixedly welded on the upper surface of lower flange (25);Inner core installs room and cooling cavities (21) is set in upper end (24);Oxic gas Cavity (22) is stepped hole construction, and the macropore of upper end is set in upper end (24) and is located at below cooling cavities (21), lower end Aperture is located in lower flange (25), and the upper surface of sealing plate (8) is the lower boundary of the aperture of lower end.
8. a kind of planar pressing surfaces flame combustion apparatus as claimed in any one of claims 1 to 5, wherein, which is characterized in that inner core peace Dress ceiling end offers rectangular quartz ampoule installing port.
CN201910691901.2A 2019-07-30 2019-07-30 Pressurized plane flame combustion device Active CN110425525B (en)

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CN113432122A (en) * 2021-06-09 2021-09-24 西安交通大学 Pressure-bearing type multiple water-cooling premixing gas device
CN113719837A (en) * 2021-09-01 2021-11-30 东南大学 Micro-scale flame burner for micro-nano material preparation
CN117092277A (en) * 2023-07-07 2023-11-21 华中科技大学 Dynamic analysis device and method for dynamic parameters of solid fuel combustion reaction

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