CN201293319Y - Flame adjustable single thermal storage burner - Google Patents

Flame adjustable single thermal storage burner Download PDF

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Publication number
CN201293319Y
CN201293319Y CNU2008201000761U CN200820100076U CN201293319Y CN 201293319 Y CN201293319 Y CN 201293319Y CN U2008201000761 U CNU2008201000761 U CN U2008201000761U CN 200820100076 U CN200820100076 U CN 200820100076U CN 201293319 Y CN201293319 Y CN 201293319Y
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CN
China
Prior art keywords
air
gas
flame
coal gas
current divider
Prior art date
Application number
CNU2008201000761U
Other languages
Chinese (zh)
Inventor
陈婉
潘爵芬
冯霄红
雍海泉
程奇伯
张道明
Original Assignee
重庆赛迪工业炉有限公司
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Application filed by 重庆赛迪工业炉有限公司 filed Critical 重庆赛迪工业炉有限公司
Priority to CNU2008201000761U priority Critical patent/CN201293319Y/en
Application granted granted Critical
Publication of CN201293319Y publication Critical patent/CN201293319Y/en

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Abstract

The utility model pertains to the combustion technology field, relating to a low-nitrogen oxide, low-oxidization burning loss and flame-adjustable single-heat accumulation burner which is mainly composed of an air heat accumulation box, an air passage, an air port brick, an ignition system and a flame peeping system. The air port brick is equipped with a big direct-jetting nozzle and multiple annularly-arranged tangential inclined nozzles; the coal gas divider is installed at the perpheral of the air passage; the flame regulator is installed at the gas inlet in the middle part of the coal gas divider; the ignition system is arranged at the end of the coal gas divider, leading to the air/gas mixing area; the flame peeping system is installed at the end of the air passage. The utility model can be widely used for thermal processing equipment in metallurgy, building materials, mechanical industry and chemical engineering; the utility model can burn natural gas, hot and dirty generator gas, coke oven gas, mixed gas, petroleum gas and so on; the utility model is a novel safe, high-efficiency, energy-saving and environment-friendly burner.

Description

A kind of adjustable flame single regenerative burner

Technical field

The utility model belongs to field of combustion technology, relate to have low Nox, a kind of adjustable flame single regenerative burner of function such as suboxides scaling loss, flame can be regulated.

Background technology

Heat-accumulation combustion (HTAC) technology can realize that the limit of fume afterheat reclaims, and has energy-efficient and multiple advantage such as low pollution emission, can solve the contradiction of low yield and high consumption in the hot-working production process, is the advanced technology that satisfies current resource and environmental requirement.Single regenerative burner is generally used for the heat-accumulation combustion of middle and high calorific value of gas, has broad application prospects in industries such as metallurgy, building materials, chemical industry.

Most of industrial furnaces require characteristics such as furnace temperature height, temperature field uniformity height, thereby require heat-accumulating burner to possess performances such as high temperature resistant, corrosion-resistant, that flame status is good.At present, developed several single regenerative burners both at home and abroad, and dropped into industrial furnace and use, but had following technical barrier with own characteristic:

(1) existing single regenerative burner can not effectively solve the problem of air, coal gas mixing.

At present, the single regenerative burner of domestic and international design, air, coal gas have two kinds of hybrid modes, and a kind of is that coal gas passes through the middle ejection of high-temperature heat accumulation case from air port; Another kind is that coal gas certain position outside heat storage tank enters air port.The former advantage is to realize the even mixing of air, coal gas, and one of shortcoming is that gas pipe need pass through the high-temperature flue gas district, easy burn-out, even may cause leakage and the burning of coal gas in heat storage tank, damage heat storage or burner; Two of shortcoming is gas pipe problems in order to solve mixing and to cool off, and needs repeatedly air feed, pipeline and valve complexity before the burner, and cooling air has reduced fractional energy savings without accumulation of heat; Three of shortcoming is that gas-jet tube needs heatproof high, has increased cost of manufacture.The latter's advantage is effectively to have protected gas-jet tube, has reduced the use and the spoilage of heat resisting steel, reduced cost, but the mixed effect of its air and coal gas is relatively poor, and fired state is undesirable.

(2) existing single regenerative burner can not be realized the flame adjusting.Heat-accumulating burner is after completing, because solidify the shape of space gas spout and position, its flame profile, the length of flame all can't change, thereby heat-accumulating burner is little to the wide adaptability of stove, and the temperature field in the burner hearth is non-adjustable, and control of industrial furnace home is not high.

Summary of the invention

The purpose of this utility model provides a kind of adjustable flame single regenerative burner.Adjustable flame single regenerative burner is by mainly being made up of air heat storage tank, air duct, air port brick, ignition system and the flame system of spying on, the air port brick is provided with the tangential tiltedly spout of big straight spout and a plurality of annular configuration, the coal gas current divider is placed in the periphery of air duct, flame regulator is installed in the gas entry place of coal gas current divider, ignition system is placed in the end of coal gas current divider and leads to the space gas Mixed Zone, and the flame system of spying on is placed in the end of air duct.The utlity model has low Nox, low scaling loss, flame and characteristics such as can regulate, realized the even mixing of air, coal gas; Realized that fuel-staged combustion and flue gas entrainment the reduction reaction center district temperature that refluxes, and reduce the generation of nitrogen oxide; Realized that coal gas parcel air has reduced the scaling loss that is heated workpiece; Realized regulating of burner flame.

The purpose of this utility model realizes in the following way:

Cold air is flowed through and is become high-temperature hot air behind the heat storage in the air heat storage tank, and through spray orifice on the air port brick, becoming the center is direct current, is the air stream of multiply swirling eddy on every side.Coal gas is divided into two groups after entering the coal gas current divider, flow through respectively and be arranged in gas port on the current divider, two groups of coal gas streams that formation is circular layout, coal gas stream is when the air duct outer wall enters inwall, and one group of angle is bigger, and one group of angle is less, ring gas is wrapped in the outside of rotary air stream, realized the parcel of coal gas, obtained reducing atmosphere flame, reduced the heated parts oxidization burning loss air.Simultaneously, two groups of coal gas streams cross in different positions and air stream, under the stirring of rotary air stream, have realized that empty, coal gas mixes more uniformly, fractional combustion and the flue gas of also having realized fuel entrainment the reduction of backflow to reaction center district temperature, reduce the generation of nitrogen oxide.

Flame regulator is arranged on coal gas splitter inlet place, by regulating the valve plate aperture, changes the gas flow that enters each group, reaches the purpose of regulating flame; Ignition system is used for a burner, and the flame system of spying on is used to observe the burner working condition.

Description of drawings

Accompanying drawing 1 is a structural representation of the present utility model

Accompanying drawing 2 is that ignition system and flame regulator are arranged schematic diagram

Among the figure, part 1 is that air heat storage tank, part 2 are the air port brick for air duct, part 3, and part 4 is spied on system for ignition system, part 7 for flame for flame regulator, part 6 for coal gas current divider, part 5.

The specific embodiment

Be described further of the present invention below in conjunction with accompanying drawing:

Air heat storage tank 1 one ends are connected with air intake, the other end is connected with air duct 2, air port brick 3 is placed in the air duct 2, coal gas current divider 4 is placed in the outside of air duct 2, flame regulator 5 is installed in the gas entry place of coal gas current divider 4, ignition system 6 is placed in the end of coal gas current divider 4 and leads to the space gas Mixed Zone at air port brick 3 rear portions, and flame is spied on the end that system 7 is placed in air duct.Air port brick 3 centers are provided with big straight spout, are provided with the oblique spout of a plurality of annular configuration all around; Coal gas current divider 4 be provided with a plurality of evenly, the gas port of annular configuration, the coal gas stream that comes out from coal gas current divider 4 is divided into two groups, wherein one group of angle of cut inclination angle with air stream is β 1, and other one group of angle of cut inclination angle with air stream is β 2, and β 2 is greater than β 1.

Enter cold air of the present utility model from air intake, finish heat exchanging process behind the hole of heat storage in by air heat storage tank 1, be heated to form 900~1050 ℃ hot-air, hot-air continues to flow forward, is further heated by air duct 2 inwalls; When hot-air passes through air port brick 3, quickened and the change directions by the apertures that are provided with in the air port brick 3, a part of straight hole by the center becomes straight air stream, and a part becomes rotary air and flows by tangential hole; Coal gas enters gas entry, after flowing through flame regulator 5, be divided into two strands, enter respectively in each shunt group of coal gas current divider 4, after the little spout that is provided with in current divider 4 quickens, shunts, the coal gas stream that comes out from coal gas current divider 4 just becomes two groups of porous, high velocity air, and wherein one group of inclination angle is β 1, and other one group angle of cut inclination angle is β 2, these two groups of air-flows cross with the air stream that comes out from air port brick 3 in different positions, have realized that the fractional combustion of fuel and flue gas entrainment backflow.

By the multiply coal gas stream that coal gas current divider 4 produces, annular is wrapped in the periphery of air stream, annular airflow has increased the contact area of air, coal gas, has strengthened the mixing of air, coal gas.Coal gas stream at first crosses with the rotary air stream of air port brick 3 peripheries, produces reducing atmosphere flame, has reduced the oxidization burning loss that is heated workpiece, reducibility gas further with the direct current air mixed combustion at air port brick 3 centers, until after-flame.

Gas port does not directly pass through high temperature air passage 2, but enters inner chamber from the outer wall of air duct 2, has a little to contact in air port brick 3 exits with high temperature air stream, has improved the service life of gas-jet.

After air port brick 3 damages, can directly spy on the maintenance fire door turnover of settling at system 7 places, realize the quick replacing of consumable accessory by flame.

Ignition system 6 provides incendiary source, and incendiary source can be the band igniter burner of igniting automatically, also can be the fire hole that the igniter access way only is provided.

Spy on system 7 from flame and observe the flame burning situation, regulate the valve plate aperture of flame regulator 5, change enters the gas flow of each coal flow groups, thereby changes the flow size of different inclination angle coal gas stream, change the opportunity of air, coal gas mixing, realize the adjusting of flame profile.

The utility model can be widely used in the heat-processing equipment of a plurality of kinds of industries such as metallurgy, building materials, machinery, chemical industry, can gas-firing, multiple gases fuel such as hot dirty producer gas, coke-stove gas, mixed gas, oil gas, be a kind of novel burner of safe, efficient, energy-saving and environmental protection.

Claims (3)

1. adjustable flame single regenerative burner, mainly form by air heat storage tank, air duct, air port brick, ignition system and the flame system of spying on, it is characterized in that: the air port brick is provided with the tangential tiltedly spout of big straight spout and a plurality of annular configuration, the coal gas current divider is placed in the periphery of air duct, flame regulator is placed in the gas entry place at coal gas current divider middle part, ignition system is placed in the end of coal gas current divider and leads to the space gas Mixed Zone, and the flame system of spying on is placed in the end of air duct.
2. adjustable flame single regenerative burner as claimed in claim 1, it is characterized in that: the coal gas stream that comes out from the coal gas current divider is divided into two groups, wherein one group of angle of cut inclination angle with air stream is β 1, and other one group of angle of cut inclination angle with air stream is β 2, and β 2 is greater than β 1.
3. adjustable flame single regenerative burner as claimed in claim 1 is characterized in that: the coal gas current divider be provided with a plurality of evenly, the gas port of annular configuration.
CNU2008201000761U 2008-09-23 2008-09-23 Flame adjustable single thermal storage burner CN201293319Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008201000761U CN201293319Y (en) 2008-09-23 2008-09-23 Flame adjustable single thermal storage burner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008201000761U CN201293319Y (en) 2008-09-23 2008-09-23 Flame adjustable single thermal storage burner

Publications (1)

Publication Number Publication Date
CN201293319Y true CN201293319Y (en) 2009-08-19

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Family Applications (1)

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CNU2008201000761U CN201293319Y (en) 2008-09-23 2008-09-23 Flame adjustable single thermal storage burner

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101639218B (en) * 2009-09-01 2011-08-31 顾向涛 Flameless combustion heat accumulating type flat flame combustion nozzle
CN102777915A (en) * 2012-07-19 2012-11-14 马鞍山天洲节能工程科技有限公司 Circumferentially distributed burner of natural gas channels
CN103939902A (en) * 2013-01-18 2014-07-23 福建三能节能科技有限责任公司 High-efficient energy-saving environmental protection type heat-storage flat flame combustor and combustion method thereof
CN104390460A (en) * 2014-11-14 2015-03-04 北京神雾环境能源科技集团股份有限公司 Heat accumulating type combustion device for bogie hearth furnace
CN110848675A (en) * 2019-11-29 2020-02-28 朱冲 Novel heat accumulating type combustor with sealing structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101639218B (en) * 2009-09-01 2011-08-31 顾向涛 Flameless combustion heat accumulating type flat flame combustion nozzle
CN102777915A (en) * 2012-07-19 2012-11-14 马鞍山天洲节能工程科技有限公司 Circumferentially distributed burner of natural gas channels
CN103939902A (en) * 2013-01-18 2014-07-23 福建三能节能科技有限责任公司 High-efficient energy-saving environmental protection type heat-storage flat flame combustor and combustion method thereof
CN104390460A (en) * 2014-11-14 2015-03-04 北京神雾环境能源科技集团股份有限公司 Heat accumulating type combustion device for bogie hearth furnace
CN110848675A (en) * 2019-11-29 2020-02-28 朱冲 Novel heat accumulating type combustor with sealing structure

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CP03 Change of name, title or address

Address after: 401122 Chongqing Shibei District CCID Road No. 1

Patentee after: Chongqing CCID thermal technology environment-friendly engineering Technology Co., Ltd.

Address before: 400013 Chongqing City, Yuzhong District No. 2 Steel Road, No. 1

Patentee before: Chongqing Saidi Industrial Furnace Co., Ltd.

C56 Change in the name or address of the patentee

Owner name: CHONGQING SAIDI THERMAL ENVIRONMENTAL PROTECTION E

Free format text: FORMER NAME: CHONGQING SAIDI INDUSTRIAL FURNACE CO., LTD.

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090819

Termination date: 20170923

CF01 Termination of patent right due to non-payment of annual fee