CN110094735A - A kind of rotary continuous heat accumulation burner - Google Patents

A kind of rotary continuous heat accumulation burner Download PDF

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Publication number
CN110094735A
CN110094735A CN201910427310.4A CN201910427310A CN110094735A CN 110094735 A CN110094735 A CN 110094735A CN 201910427310 A CN201910427310 A CN 201910427310A CN 110094735 A CN110094735 A CN 110094735A
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CN
China
Prior art keywords
cabinet
burner
air
accumulation
heat
Prior art date
Application number
CN201910427310.4A
Other languages
Chinese (zh)
Inventor
李国军
曹晓棚
钟佳琪
李依擎
Original Assignee
东北大学
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Application filed by 东北大学 filed Critical 东北大学
Priority to CN201910427310.4A priority Critical patent/CN110094735A/en
Publication of CN110094735A publication Critical patent/CN110094735A/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46Details, e.g. noise reduction means
    • F23D14/66Preheating the combustion air or gas
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23KFEEDING FUEL TO COMBUSTION APPARATUS
    • F23K5/00Feeding or distributing other fuel to combustion apparatus
    • F23K5/002Gaseous fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23LSUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L15/00Heating of air supplied for combustion
    • F23L15/02Arrangements of regenerators
    • 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
    • F28D19/00Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/02Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using granular particles
    • 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
    • F28D19/00Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium
    • F28D19/04Regenerative heat-exchange apparatus in which the intermediate heat-transfer medium or body is moved successively into contact with each heat-exchange medium using rigid bodies, e.g. mounted on a movable carrier
    • 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
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/34Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

Abstract

The present invention discloses a kind of rotary continuous heat accumulation burner, including upper outer shell, lower housing body supporting clapboard, burner block, air nozzle, flue gas suction nozzle, fuel gas conduit, accumulation of heat cabinet and transmission mechanism, supporting clapboard is clipped between upper outer shell and lower housing body, and the bolt hole on upper outer shell outer, the bolt hole on lower housing body outer and supporting clapboard outer edge upper bolt hole are tightly fastened through bolt and are integrated;Air intlet corresponding with air nozzle and flue gas suction nozzle and exhanst gas outlet respectively are provided in lower housing body bottom heat preservation material;Air nozzle and flue gas suction nozzle are set in burner block, and burner block is set in upper case body;Accumulation of heat cabinet is installed, fuel gas conduit enters accumulation of heat cabinets cavity by bottom in lower case body;Transmission mechanism is installed on accumulation of heat cabinet bottom end.Smoke absorption channel of the present invention and air jet passages are arranged in burner, occupy little space, easy disassembling, can generate the flame of continuous-stable, and the thermal efficiency is high.

Description

A kind of rotary continuous heat accumulation burner

Technical field

The present invention relates to a kind of industrial-furnace burner, specially a kind of rotary continuous heat accumulation burner.

Background technique

High temperature air combustion technology can recycle the waste heat of high-temperature flue gas to greatest extent, preheated air temperature can be made to reach 1000 ~1400 DEG C, and the production quantity of nitrogen oxides is reduced, environmental pollution is reduced, thus be a kind of with the advanced of effects of energy saving and emission reduction Combustion technology.This technology is used widely on industrial stove, achieves good economic and social profit.

The suitching type Regenerative Combustion System based on high temperature air combustion technology is widely used in metallurgical industrial furnace at present, however should The regenerative chamber of system must be organized in pairs with burner, thus require have biggish arrangement space;When commutating during the work time Between about 3~8s, frequent switching easily cause the fluctuation of furnace temperature, furnace pressure, it is discontinuous that commutation moment will cause burning, and it is equal to influence furnace temperature Even property, causes heating quality to reduce;Furthermore for regenerative chamber in commutation, there is also volume effects;Simultaneously because fuel is commutation type Burning, be easy burner is made to result in blockage, coking, cutoff, detonation, detonation the problems such as;Thus conventional suitching type high-temperature air burning The advantage of technology is little.

Self-heat-storage burner is avoided that various deficiencies of suitching type heat-accumulation combustion, has the advantages that more prominent.Flue gas Absorbing path and air jet passages are arranged in burner simultaneously, and entire heat-storage type burner volume is made to occupy little space;Combustion Gas does not need to commutate, and can produce the flame of continuous-stable;The regenerative chamber of self regenerative burner can be made module, be conducive to heat storage Replacement;And combustion system connection is also simpler, is more conducive to control and operate.

However, Self-heat-storage also have the shortcomings that it is certain.Since Self-heat-storage burner flue gas suction inlet is closer from fuel nozzle ports, The flue gas being easily inhaled carries, and causes the second-time burning in heat storage, shortens the service life of heat storage and burner;Secondly, empty Gas blowout mouth is also smoke outlet simultaneously, and air outlet slit is to keep normal spouting velocity, and outlet can not be too big, to make cigarette Gas can be smoothly discharged, and be typically necessary air-introduced machine and force pump drainage, and biggish draft be easy to cause " short circuit ", so that Self-heat-storage fires Than small, it is big that furnace temperature adjusts difficulty for the adjusting of burner;It is needed from regenerative structure using air reversing valve, price phase due to traditional To valuableness, it is unfavorable for industrial applications.

Summary of the invention

Shorten the tune of heat storage and burner life, Self-heat-storage burner for Self-heat-storage burner in the prior art Section adjusts the deficiencies of difficulty is big than small, furnace temperature, and the problem to be solved in the present invention is to provide a kind of structures simply, is able to achieve continuous combustion The deficiency to make up suitching type heat-accumulation combustion and Self-heat-storage burning of burning further increases utilization efficiency of heat energy, while big It is big to reduce NOxThe rotary continuous heat accumulation burner of production quantity.

In order to solve the above technical problems, the technical solution adopted by the present invention is that:

A kind of rotary continuous heat accumulation burner of the present invention, including upper outer shell, lower housing body supporting clapboard, burner Brick, air nozzle, flue gas suction nozzle, fuel gas conduit, accumulation of heat cabinet and transmission mechanism, wherein supporting clapboard be clipped in upper outer shell with Between lower housing body, the bolt hole on upper outer shell outer, bolt hole and supporting clapboard on lower housing body outer Outer edge upper bolt hole is tightly fastened through bolt to be integrated;It is provided in lower housing body bottom heat preservation material and is sprayed respectively with air Mouth and the corresponding air intlet of flue gas suction nozzle and exhanst gas outlet;The air nozzle and flue gas suction nozzle are set in burner block, are burnt Mouth brick is set in upper case body;Accumulation of heat cabinet is installed, fuel gas conduit enters accumulation of heat cabinets cavity by bottom in lower case body; Transmission mechanism is installed on accumulation of heat cabinet bottom end.

The air nozzle is made of contraction mouth, primary air pipe and secondary air pipe, secondary air pipe and primary air Pipe connection converges, and converges pipeline and is connected to contraction mouth;The outlet of primary air pipe is located at burner block interior sidewall surface, and secondary air pipe goes out Mouth is located at burner block top side wall surface, and two air hoses all to inclination on the inside of burner block, are successively mixed with the combustion gas stream of ejection.

The flue gas suction nozzle includes converging diverging pipe and side draught pipe, and the lower mouth of converging diverging pipe is bigger than suitable for reading, throat It is provided with L shape side opening, L shape side opening one end is connected to converging diverging pipe throat, and the other end is connected into burner hearth from burner block top.

Air nozzle and flue gas suction nozzle it is each there are two, two air nozzles and flue gas suction nozzle are arranged in burning in " ten " shape opposition In mouth brick.

The accumulation of heat cabinet includes cabinet exterior, cabinet wall and partition, and wherein cabinet wall is same is located in outside cabinet Pars intramuralis;Partition is four, and even support, will be in cabinet exterior, cabinet in the interlayer between cabinet wall and cabinet exterior The space of wall composition is divided into four regenerative chambers, and each regenerative chamber is provided with heat storage medium;Cabinet wall is cylindrical shape, upper end cap It is connected in support annular groove, lower end is reached on the outside of lower housing body by bearing, and the part that bearing reaches lower housing body is equipped with Gear.

The supporting clapboard is made of the separator face and lower support annular groove for being used to support burner block, and separator face center is equipped with Circle for fixing the combustion gas through-hole of fuel gas conduit and being connected with air nozzle, flue gas suction nozzle and exhaust gases passes and air duct Through-hole;In the cabinet wall for supporting annular groove insertion accumulation of heat cabinet.

The upper outer shell is made of metal material resistant to high temperature, including peripheral shell wall, top fixed ring and upper outer Edge, middle and upper part fixed ring are set on the upper outer of peripheral shell wall, and burner block is placed in upper housing by upper outer;Upper outer Periphery is equipped with bolt hole.

The lower housing body is the tubular structure formed by outer wall steel plate and thermal insulation material, and bottom part of tubular structure is equipped with four A circular channel for being used to dispose air inlet passageway and exhanst gas outlet channel, lower housing body bottom centre are equipped with bearing.

The fuel gas conduit is located at accumulation of heat cabinets cavity center, and the air inlet side for being passed through fuel gas protrudes from cabinet wall Outer end, spout side pass through the combustion gas pipe through-hole on supporting clapboard, project in burner block.

It is external that air intlet directly projects to lower case, and exhanst gas outlet is projected to outer by lower housing body bottom sides Portion;The corresponding space in accumulation of heat cabinet constitutes air duct to air nozzle with air intlet, and flue gas suction nozzle and exhanst gas outlet exist Corresponding space then constitutes exhaust gases passes in accumulation of heat cabinet.

The invention has the following beneficial effects and advantage:

It is burning 1. rotary continuous heat accumulation burner of the present invention, smoke absorption channel and air jet passages are arranged simultaneously In device, entire heat-storage type burner volume is made to occupy little space, structure is simple, and installing and dismounting is easy, and can generate continuous-stable Flame, the thermal efficiency is high.

2. upper outer shell of the present invention and lower housing body and supporting clapboard, closely solid with bolt by the bolt hole of outer It is set to one, is easily installed, dismantles.

3. the present invention will be divided into four accumulation of heat room modules in heat storage tank body, it is conducive to heat storage medium and replaces, while can also make to store Thermal medium also can be able to be spherical ceramic bead for block-like honeycomb ceramics, and make heat storage medium has bigger selection space.

4. the present invention by rotation accumulation of heat cabinet persistently air is preheated, it is preheated after air persistently feed furnace Interior, the continuous heat accumulation type that high-temperature flue gas and normal temperature air may be implemented exchanges heat, and combustion process does not commutate, flameholding.

5. the preheated air sprayed respectively with primary air pipe and secondary air pipe after fuel gas sprays in the present invention is mixed It closes, to realize fractional combustion, flame temperature can be effectively reduced, and the discharge of NOx can be greatly reduced.

6. resistance increases at flue gas suction nozzle when the pantograph structure of flue gas suction nozzle will cause smoke evacuation in the present invention, and arranges at side opening Cigarette is relatively easy, causes a large amount of flue gas to be discharged from side opening, significantly reduces the smoke evacuation draft at flue gas suction nozzle, can be effective Ground overcomes the problems, such as coal gas " short circuit ".

Detailed description of the invention

Fig. 1 is the principal section figure of rotary continuous heat accumulation burner of the present invention;

Fig. 2 is the sectional side view of rotary continuous heat accumulation burner of the present invention;

Fig. 3 is rotation accumulation of heat box structure diagram of the invention;

Fig. 4 is upper outer shell structural schematic diagram of the invention;

Fig. 5 is supporting clapboard structural schematic diagram of the invention.

Wherein, 1 is upper outer shell, and 101 be fixed ring, and 102 be upper outer, and 104 be bolt hole, and 105 be burner block, 2 For air nozzle, 201 primary air pipes, 202 be secondary air pipe, and 203 be contraction mouth, and 3 be flue gas suction nozzle, and 301 be receipts converging/diverging Zhang Guan, 302 be side draught pipe, and 4 be supporting clapboard, and 401 be round tube hole, and 402 be combustion gas through-hole, and 403 be support annular groove, and 5 be lower part Outer housing, 501 be lower outer, and 502 be thermal insulation material, and 503 be air intlet, and 504 be exhanst gas outlet, and 505 be air duct, 506 be exhaust gases passes, and 6 be accumulation of heat cabinet, and 601 be cabinet exterior, and 602 be cabinet wall, and 603 be partition, and 604 be sieve pore, 605 It is bearing for heat storage medium, 7,8 be transmission mechanism, and 9 be fuel gas conduit.

Specific embodiment

The present invention is further elaborated with reference to the accompanying drawings of the specification.

As shown in Fig. 1~2, a kind of rotary continuous heat accumulation burner of the present invention, including upper outer shell 1, lower case Body 5, supporting clapboard 4, burner block 105, air nozzle 2, flue gas suction nozzle 3, fuel gas conduit 9, accumulation of heat cabinet 6 and transmission mechanism 8, Middle supporting clapboard 4 is clipped between upper outer shell 1 and lower housing body 5, outside the bolt hole, lower part on 1 outer of upper outer shell Bolt hole and 4 outer edge upper bolt hole of supporting clapboard on 5 outer of shell are tightly fastened through bolt and are integrated;Lower housing body Air intlet 503 corresponding with air nozzle 2 and flue gas suction nozzle 3 and exhanst gas outlet respectively are provided in 5 bottoms heat preservation material 504;The air nozzle 2 and flue gas suction nozzle 3 are set in burner block 105, and burner block 105 is set in upper outer shell 1;Lower part Accumulation of heat cabinet 6 is installed, fuel gas conduit 9 enters 6 inner cavity of accumulation of heat cabinet by bottom in outer housing 5;Transmission mechanism 8 is installed on heat storage tank 6 bottom end of body, the output shaft and accumulation of heat cabinet 6 of transmission mechanism 8 are connected.

Air nozzle 2 is made of contracting nozzle 203, primary air pipe 201 and secondary air pipe 202, secondary air pipe 202 It is connected to and converges with primary air pipe 201, converge pipeline and be connected to contracting nozzle 203;The outlet of primary air pipe 201 is located at burner block 105 interior sidewall surfaces, the outlet of secondary air pipe 202 are located at 105 top side wall surface of burner block, and two air hoses are all rolled into burner block Tiltedly, it is successively mixed at an angle with the combustion gas stream of ejection.

Flue gas suction nozzle 3 includes converging diverging pipe 301 and side draught pipe 302, and the lower mouth of converging diverging pipe 301 is bigger than suitable for reading, Its throat is provided with L shape side opening, and L shape side opening one end is connected to converging diverging pipe throat, and the other end is connected into from 105 top of burner block Burner hearth.

There are two air nozzle 2 and flue gas suction nozzle 3 are each, air nozzle 2 and flue gas suction nozzle 3 are arranged in burning in " ten " shape opposition In mouth brick 105.

Fuel gas conduit 9 is located at accumulation of heat cabinets cavity center, and the air inlet side for being passed through fuel gas protrudes from cabinet wall 602 Outer end, spout side pass through the combustion gas pipe through-hole on supporting clapboard 4, project in burner block 105.

Air intlet 503 directly projects to outside lower housing body 5, and exhanst gas outlet 504 is convex by 5 lower side of lower housing body Reach outside;The corresponding space in accumulation of heat cabinet 6 constitutes air duct 505 to air nozzle 2 with air intlet 503, and flue gas is inhaled The corresponding space in accumulation of heat cabinet 6 then constitutes exhaust gases passes 506 to mouth 3 with exhanst gas outlet 504.

As shown in figure 3, accumulation of heat cabinet 6 includes cabinet exterior 601, cabinet wall 602 and partition 603, wherein in cabinet Wall 602 is same to be located in inside cabinet exterior 601;Partition 603 is four, and even support is in cabinet wall 602 and cabinet exterior 601 Between interlayer in, the space that cabinet exterior 601, cabinet wall 602 form is divided into four regenerative chambers, in each regenerative chamber Equipped with heat storage medium 605;Cabinet wall 602 is cylindrical shape, and upper end is socketed in support annular groove 403, and lower end is reached by bearing 7 5 outside of lower housing body, the part that bearing 7 reaches lower housing body 5 is equipped with gear.

Supporting clapboard 4 is made of the separator face and lower support annular groove 403 for being used to support burner block 105, separator face center Equipped with for fixing fuel gas conduit 9 combustion gas through-hole 402 and with air nozzle, flue gas suction nozzle and exhaust gases passes and air duct phase Two pairs of round tube holes of connection;Annular groove 403 is supported to be inserted into the cabinet wall 602 of accumulation of heat cabinet 6.

Upper outer shell 1 is made of metal material resistant to high temperature, including peripheral shell wall, top fixed ring and upper outer, Its middle and upper part fixed ring is set to the upper outer 102 of peripheral shell wall, and top fixed ring is for consolidating burner block;Upper outer 102 is equipped with The bolt hole 104 of certain amount.

Lower housing body 5 is the tubular structure formed by outer wall steel plate and thermal insulation material 502, and bottom part of tubular structure is equipped with four It is a that for disposing the circular channel of air inlet passageway and exhanst gas outlet channel, 5 bottom centre of lower housing body is equipped with bearing 7, The upper outer at top is additionally provided with bolt hole 104.Fuel gas conduit 9 is located in the box body 602 center of wall, for being passed through the air inlet of fuel gas Side protrudes from 602 outer end of cabinet wall, and spout side passes through the combustion gas pipe through-hole on supporting clapboard 4, projects in burner block 105. Fuel in fuel gas conduit 9 can may be natural gas for coal gas.

Air intlet 503 directly projects to outside lower housing body 5, and exhanst gas outlet 504 is convex by 5 lower side of lower housing body Reach outside;The corresponding space in accumulation of heat cabinet 6 constitutes air duct 505 to air nozzle 2 with air intlet 503, and flue gas is inhaled The corresponding space in accumulation of heat cabinet 6 then constitutes exhaust gases passes 506 to mouth 3 with exhanst gas outlet 504.

In the present embodiment, the overall structure of rotary continuous heat accumulation burner is cylinder, and supporting clapboard 4 passes through outside top 4 outer edge of bolt hole 104 and supporting clapboard on shell 1 on the lower outer 501 of the bolt hole 104, lower housing body 5 of outer 12 Upper corresponding bolt hole 104, is tightly fastened with bolt and is integrated.As shown in figure 4, upper outer shell 1 is by metal material resistant to high temperature Material is made, and is closely linked into an integrated entity by peripheral shell wall, top fixed ring 11 and 102 ring of upper outer, and top fixed ring 101 is for steady Gu burner block 105.Entire shell structure is convenient for the replacement of burner block 105.

Lower housing body 5 is poured by the thermal insulation material 502 of external steel plate and inside and bottom, and there are four bottoms For circular channel for disposing 503 channel of air intlet and exhanst gas outlet 504,5 bottom of lower housing body is provided centrally with drum Shape bearing 7, cabinet wall 602 are projected to outside cabinet by bearing 7 for installing transmission mechanism 8.

Burner block 105 is the Ring-cylindrical made of ceramic material resistant to high temperature, is fixed in upper housing and is placed on support On partition 4, the flue gas suction nozzles 3 of two air nozzles 2 to oppose and two opposition are fixed on burner block 105 in cross-shaped In.

As shown in figure 5, supporting clapboard 4 is made of separator face and lower support annular groove 403, there is a combustion gas at separator face center Through-hole 402 is for fixing fuel gas conduit 9, the air nozzle 2 of two pairs of round tube holes 401 and upper housing, flue gas suction nozzle 3 and lower case Exhaust gases passes 506 are connected with air duct 505.Separator face is used to support burner block 105, and the insertion of lower support annular groove 403 stores 6 inner wall of hot tank body, the accumulation of heat cabinet 6 when for firm support rotation.

Accumulation of heat cabinet 6 is made of cabinet exterior 601, cabinet wall 602, partition 603 and the sieve pore 604 of bottom, described There are four partitions 603, and the space that inside and outside wall forms is divided into four regenerative chambers, and each regenerative chamber is provided with heat storage medium 605, 6 inner wall of accumulation of heat cabinet is cylindrical shape, is projected to for installing transmission mechanism 8 on the outside of lower case 5, under the drive of transmission mechanism 8, It is constantly rotated with certain speed, accumulation of heat cabinet 6 is made persistently to pass alternately between exhaust gases passes 506 and the progress of air duct 505 Heat exchange.

Heat storage medium 605 can be ceramic bead or ceramic-metal honeycomb heat accumulation body.It is stored using ceramic-metal honeycomb Hot body has heat transfer rate fast, and the high feature of heat transfer efficiency can effectively avoid honeycomb ceramic heat accumulator through-hole in use The problems such as rupture, heat storage avalanche, dislocation.

Regenerative chamber section is fan-shaped, and four regenerative chambers are located in accumulation of heat cabinet 6 to be rotated with decelerating motor uniform speed slow, and one To air nozzle 2, the corresponding space in accumulation of heat cabinet 6 is air duct 505 with a pair of of air intlet 503, and another pair flue gas is inhaled The corresponding space in accumulation of heat cabinet 6 is then exhaust gases passes 506 to mouth 3 with exhanst gas outlet 504.Air duct 505 and exhaust gases passes It is provided with thermocouple in 506 top and air intlet 503 and exhanst gas outlet 504, for measuring the disengaging of air and flue gas Temperature, the revolving speed and compressor flow of transmission mechanism 8 are set by temperature, to ensure that burner hearth burns by the standard of setting.

Two air hoses of air nozzle 2 are all to tilting on the inside of burner block 105, at an angle with the combustion gas stream of ejection It meets.Wherein, fuel gas spray after first with primary air pipe 201 ejection preheated fuel gas mix, then with secondary air pipe 202 The combustion gas mixing of ejection can be effectively reduced flame temperature, and greatly reduce NO to realize fractional combustionxDischarge Amount.

Flue gas suction nozzle 3 is made of converging diverging pipe 301 and side draught pipe 302, and in converging diverging pipe, 301 throat is provided with one Biggish side opening is connected to burner hearth.Since resistance increases at flue gas suction nozzle when pantograph structure will cause smoke evacuation, and 302 mouthfuls of side draught pipe Place's smoke evacuation is relatively easy, so a large amount of flue gas is discharged from side opening, significantly reduces the smoke evacuation draft at flue gas suction nozzle, can be with Efficiently against coal gas " short circuit " problem.

Transmission mechanism 8 uses gear drive, and geared sleeve passes through bearing 7 and support annular groove in 6 inner wall outer end of accumulation of heat cabinet 403 ensure the stability of rotation, and gear connects with the deceleration motor, and the running speed of motor passes through frequency control.

The course of work of the invention are as follows:

By the 105 partial insertion burner hearth of burner block of burner, accumulation of heat cabinet 6 in the case where the continuous rotation of transmission mechanism 8 drives, Make that the heat storage medium 605 in cabinet persistently passes alternately between exhaust gases passes 506 and air duct 505 exchanges heat.High-temperature flue gas Constantly enter flue gas suction nozzle 3 from furnace side under the action of external air-introduced machine, is then transferred heat to by exhaust gases passes 506 Heat storage medium 605 is finally discharged from exhanst gas outlet 504.Meanwhile normal temperature air passes through air intlet under the action of high pressure blower 503 heats for flowing into the absorption heat storage medium 605 of air duct 505 become preheated air, then respectively from the primary of air nozzle 2 Air hose 201 and secondary air pipe spray 202, burn in burner hearth after successively mixing with the fuel gas of sustained firing.In reality During applying, heat is provided in the top and air intlet 503 of air duct 505 and exhaust gases passes 506 and exhanst gas outlet 504 Galvanic couple sets the revolving speed and compressor flow of transmission mechanism 8 by temperature for measuring the disengaging temperature of air and flue gas.

Claims (10)

1. a kind of rotary continuous heat accumulation burner, it is characterised in that: including upper outer shell, lower housing body supporting clapboard, Burner block, air nozzle, flue gas suction nozzle, fuel gas conduit, accumulation of heat cabinet and transmission mechanism, wherein supporting clapboard is clipped in upper case Between body and lower housing body, the bolt hole on upper outer shell outer, the bolt hole on lower housing body outer and support Partition outer edge upper bolt hole is tightly fastened through bolt to be integrated;Lower housing body bottom heat preservation material in be provided with respectively with sky Gas jets and the corresponding air intlet of flue gas suction nozzle and exhanst gas outlet;The air nozzle and flue gas suction nozzle are set to burner block In, burner block is set in upper case body;Accumulation of heat cabinet is installed, fuel gas conduit enters accumulation of heat cabinet by bottom in lower case body Inner cavity;Transmission mechanism is installed on accumulation of heat cabinet bottom end.
2. rotary continuous heat accumulation burner according to claim 1, it is characterised in that: the air nozzle is by shrinking Mouth, primary air pipe and secondary air pipe are constituted, and secondary air pipe is connected to primary air pipe to be converged, and pipeline and contraction mouth are converged Connection;The outlet of primary air pipe is located at burner block interior sidewall surface, and secondary air pipe outlet is located at burner block top side wall surface, two skies Tracheae all to inclination on the inside of burner block, is successively mixed with the combustion gas stream of ejection.
3. rotary continuous heat accumulation burner according to claim 1, it is characterised in that: the flue gas suction nozzle includes receiving The lower mouth of converging/diverging pipe and side draught pipe, converging diverging pipe is bigger than suitable for reading, and throat is provided with L shape side opening, the connection of the shape side opening one end L In converging diverging pipe throat, the other end is connected into burner hearth from burner block top.
4. rotary continuous heat accumulation burner according to claim 1, it is characterised in that: air nozzle and flue gas suction nozzle are each There are two, two air nozzles and flue gas suction nozzle are arranged in burner block in " ten " shape opposition.
5. rotary continuous heat accumulation burner according to claim 1, it is characterised in that: the accumulation of heat cabinet includes cabinet Outer wall, cabinet wall and partition, wherein cabinet wall is same is located in inside cabinet exterior;Partition be four, even support in In interlayer between cabinet wall and cabinet exterior, the space that cabinet exterior, cabinet wall form is divided into four regenerative chambers, Each regenerative chamber is provided with heat storage medium;Cabinet wall is cylindrical shape, and upper end is socketed in support annular groove, and lower end is stretched by bearing On the outside of to lower housing body, the part that bearing reaches lower housing body is equipped with gear.
6. rotary continuous heat accumulation burner according to claim 1, it is characterised in that: the supporting clapboard is by for branch Support burner block separator face and lower support annular groove constitute, separator face center be equipped with for fix fuel gas conduit combustion gas through-hole and with The round tube hole that air nozzle, flue gas suction nozzle and exhaust gases passes are connected with air duct;Support annular groove insertion accumulation of heat cabinet In cabinet wall.
7. rotary continuous heat accumulation burner according to claim 1, it is characterised in that: the upper outer shell is by resistance to height The metal material of temperature is made, including peripheral shell wall, top fixed ring and upper outer, and middle and upper part fixed ring is set to outer casing On the upper outer of wall, burner block is placed in upper housing by upper outer;It is upper outer provided peripherally with bolt hole.
8. rotary continuous heat accumulation burner according to claim 1, which is characterized in that the lower housing body is by outer The tubular structure that wall steel plate and thermal insulation material are formed, bottom part of tubular structure set that there are four for disposing air inlet passageway and flue gas The circular channel of exit passageway, lower housing body bottom centre are equipped with bearing.
9. rotary continuous heat accumulation burner according to claim 1, it is characterised in that: the fuel gas conduit is located at heat storage tank Intracoelomic cavity center, the air inlet side for being passed through fuel gas protrude from cabinet wall outer end, and spout side passes through on supporting clapboard Combustion gas pipe through-hole, projects in burner block.
10. rotary continuous heat accumulation burner according to claim 1, it is characterised in that: air intlet directly projects to Lower case is external, and exhanst gas outlet projects to outside by lower housing body bottom sides;Air nozzle and air intlet are in accumulation of heat Corresponding space constitutes air duct in cabinet, and the corresponding space in accumulation of heat cabinet then constitutes cigarette to flue gas suction nozzle with exhanst gas outlet Gas channel.
CN201910427310.4A 2019-05-22 2019-05-22 A kind of rotary continuous heat accumulation burner CN110094735A (en)

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