CN110131707A - For preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box - Google Patents

For preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box Download PDF

Info

Publication number
CN110131707A
CN110131707A CN201910401379.XA CN201910401379A CN110131707A CN 110131707 A CN110131707 A CN 110131707A CN 201910401379 A CN201910401379 A CN 201910401379A CN 110131707 A CN110131707 A CN 110131707A
Authority
CN
China
Prior art keywords
smoke
mixed flow
fairing
box
lumen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910401379.XA
Other languages
Chinese (zh)
Inventor
璧靛博
赵岩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Northeastern University China
Original Assignee
Northeastern University China
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Northeastern University China filed Critical Northeastern University China
Priority to CN201910401379.XA priority Critical patent/CN110131707A/en
Publication of CN110131707A publication Critical patent/CN110131707A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C9/00Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
    • F23C9/08Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23MCASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M9/00Baffles or deflectors for air or combustion products; Flame shields
    • F23M9/003Baffles or deflectors for air or combustion products; Flame shields in flue gas ducts

Abstract

The present invention provides a kind of for preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box, comprising: flange, refractory fibre, and heavy refractory material, close to the fairing of marginal belt annular convex platform, fixed shell, outer housing.Refractory fibre is arranged in outer housing inner wall, it is fixed shell between heavy refractory material on the inside of refractory fibre, a sloping platform with groove is arranged in suitable position on the inside of heavy refractory material, it is mounted on platform close to marginal belt annular convex platform pie fairing, it is embedded in the groove of platform by the boss of proximal edge, in the different flow-guiding channel in the setting aperture inside marginal belt boss pie fairing.The cold air that the high-temperature flue gas and air distribution device that burner combustion generates are sent into is through combustion chamber, into smoke-box is turned, enters heat exchanging body by the different pore size flow-guiding channel close to marginal belt boss pie fairing.

Description

For preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box
Technical field
The present invention relates to Thermal Power Engineering technical fields, specifically, more particularly to the fuel oil with air distribution device or combustion gas heat The high-temperature flue gas of wind furnace, which enters before heat exchanging body, turns smoke-box.
Background technique
After the burning Indoor Combustion of hot-blast stove, the flue-gas temperature of generation is up to 1600 DEG C or more for oil or combustible gas Guarantee the normal operation and service life of hot-blast stove, air distribution device is arranged within the walls, cold air is blown into combustion for the forehearth in combustion chamber Room is burnt, enters after being mixed into 850 DEG C with high-temperature flue gas and turns smoke-box, turned smoke-box and enter heat exchanging body.Mixed flue gas is with certain Speed enter turn smoke-box, with turn smoke-box inner wall impact after be upwardly into heat exchanging body.Because it is short to turn smoke-box inlet and outlet distance, because This gaseous mixture enters undercompounding before heat exchanging body, it is uneven to cause temperature, and mixed gas is turning that bias current occurs in smoke-box, enters After heat exchanging body, make heat exchanging body uneven heating, generate very big thermal stress, heat exchanging body easily cracks, influence hot-blast stove operate normally and Service life.
Summary of the invention
According to technical problem set forth above, and provide the fuel oil or fuel gas hot-blast stove high temperature of a kind of anti-stop-band air distribution device Bias current occurs after flue gas mixed flow and strengthens mixed flow turn smoke-box.
The technological means that the present invention uses is as follows:
It is a kind of for preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box, comprising:
Turn smoke-box outer housing, insulating layer, fixed shell, flame retardant coating and fairing;
Turn smoke-box outer housing internal chamber are as follows: smoke inlet lumen A and steering lumen B;
It is wherein formed between the central axis of smoke inlet lumen A and the central axis for turning to lumen B and is less than greater than 0 degree 180 angle;
The inner wall setting refractory fibre for turning smoke-box outer housing, is fixed between heavy refractory material on the inside of refractory fibre Shell, heavy refractory material is as most inner side wall;
Fairing is obliquely installed turning to lumen part B;
Fairing be can cover it is entire turn to lumen B inner hole there is certain thickness disk-like structure;
Flowing device is the pie structure close to marginal belt annular convex platform, and preset with groove with lumen B inner wall is turned to Sloping platform cooperatively forms detachable assembling structure.
The different flow-guiding channel in several apertures is processed on fairing.
Fairing is high point close to the smoke inlet end lumen A, i.e., fairing is in the jet stream side of smoke inlet lumen A To upper gradually become smaller inclination with jet direction central axis angle.
Flow-guiding channel diameter of the fairing from high point to low spot is gradually reduced.
The extending direction of the central axis of flow-guiding channel is identical as lumen B center axis extension direction is turned to.
The present invention by adopting the above technical scheme, turn smoke-box smoke entrance using flange respectively with combustion chamber and heat exchanging body Connection.After high-temperature flue gas and cold air mix in the combustion chamber, into turning smoke-box, after turning the impact of smoke-box inner wall, Xiang Shangliu It is dynamic, after the fairing rectification of the pie structure close to marginal belt annular convex platform, the mixed flow degree of mixed gas is enhanced, makes to mix Close that temperature degree is uniform, and gaseous mixture passes through the channel of the pie fairing different pore size close to marginal belt annular convex platform to upstream Out, play the role of flowing gaseous mixture, prevent the generation of bias current.Therefore gaseous mixture enters heat exchanging body with mild uniform air flow, makes Heat exchanging body is heated evenly everywhere, is prevented heat exchanging body uneven heating and is cracked, and is guaranteed hot-blast stove stabilization, efficient operation, is extended hot wind Furnace service life.The pie fairing for turning smoke-box and its close marginal belt annular convex platform is overall structure, production and installation side Just, scientific and reasonable, novel.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.
Fig. 1 is overall structure diagrammatic cross-section of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the present invention and structural schematic diagram after the assembly of combustion chamber.
In figure: 1- flange, 2- refractory fibre, 3- heavy refractory material, 4- fairing, 5- flow-guiding channel, 13- set casing Body, 14- outer housing, 15- burner, 16- air distribution device, the combustion chamber 17-, 18- turn smoke-box.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only It is only a part of the embodiment of the present invention, instead of all the embodiments.It is real to the description of at least one exemplary embodiment below It is merely illustrative on border, never as to the present invention and its application or any restrictions used.Based on the reality in the present invention Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to In the scope of protection of the invention.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to exemplary embodiments of the present invention.As used herein, unless the context clearly indicates otherwise, otherwise singular Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be clear that for ease of description, each portion shown in attached drawing The size divided not is to draw according to actual proportionate relationship.Technology known for person of ordinary skill in the relevant, side Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation A part of book.In shown here and discussion all examples, appointing should be construed as merely illustratively to occurrence, and Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached It does not need that it is further discussed in figure.
In the description of the present invention, it is to be understood that, the noun of locality such as " front, rear, top, and bottom, left and right ", " it is laterally, vertical, Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes System, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality do not indicate that It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage Solution is limiting the scope of the invention: the noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ", " ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction " Side " or " under its device or construction ".Thus, exemplary term " ... top " may include " ... top " and " in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this The limitation of invention protection scope.
Fig. 1 be the present invention select the central axis of smoke inlet lumen A with steering lumen B central axis be vertical when Schematic diagram, for preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box, comprising:
Turn smoke-box outer housing 14, insulating layer, fixed shell 13, flame retardant coating and fairing 4;
Turn 14 internal chamber of smoke-box outer housing are as follows: smoke inlet lumen A and steering lumen B;
It is wherein formed between the central axis of smoke inlet lumen A and the central axis for turning to lumen B and is less than greater than 0 degree 180 angle;
The inner wall setting refractory fibre 2 for turning smoke-box outer housing 14, between 2 inside of refractory fibre and heavy refractory material 3 For fixed shell 13, heavy refractory material is as most inner side wall;
Fairing 4 is obliquely installed turning to lumen part B;The different water conservancy diversion in several apertures is processed on fairing Channel;
Fairing 4 be can cover it is entire turn to lumen B inner hole there is certain thickness disk-like structure;
Fairing be close to marginal belt annular convex platform pie structure, and with turn to the preset band groove of lumen B inner wall Sloping platform cooperatively form detachable assembling structure;It is set in the 3 inside suitable position of inner wall heavy refractory material for turning to lumen B A sloping platform with groove is set, the fairing 4 close to marginal belt annular convex platform ellipse pie structure is mounted on platform, It is embedded in the groove of platform by the boss of proximal edge, and fairing 4 is high point close to the smoke inlet end lumen A, that is, rectifies Device 4 gradually becomes smaller inclination for the upper and jet direction central axis angle of the jet direction in smoke inlet lumen A.
Flow-guiding channel 5 diameter of the fairing from high point to low spot is gradually reduced.
The extending direction of the central axis of flow-guiding channel is identical as lumen B center axis extension direction is turned to.
Turning smoke-box smoke entrance equipped with flange 1, is being connect by flange 1 with combustion chamber 17 and heat exchanging body.Burner 15 fires It burns the cold air that the high-temperature flue gas generated and air distribution device 16 are sent into and passes through close marginal belt into smoke-box is turned through combustion chamber 17 The flow-guiding channel 5 of the fairing 4 of boss ellipse pie structure enters heat exchanging body.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement;And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (5)

1. for preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box,
It is characterised by comprising:
Turn smoke-box outer housing, insulating layer, fixed shell, flame retardant coating and fairing;
Turn smoke-box outer housing internal chamber are as follows: smoke inlet lumen (A) and steering lumen (B);
It is wherein formed between the central axis of smoke inlet lumen (A) and the central axis for turning to lumen (B) and is less than greater than 0 degree 180 angle;
The inner wall setting refractory fibre for turning smoke-box outer housing, is set casing between heavy refractory material on the inside of refractory fibre Body, heavy refractory material is as most inner side wall;
Fairing is partially obliquely installed turning to lumen (B);
The fairing be can cover it is entire turn to lumen (B) inner hole there is certain thickness disk-like structure;
The different flow-guiding channel in several apertures is processed on fairing.
2. it is according to claim 1 for preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box,
It is characterized by:
The fairing is the pie structure close to marginal belt annular convex platform, and recessed with the preset band of lumen (B) inner wall is turned to The sloping platform of slot cooperatively forms detachable assembling structure.
3. it is according to claim 1 or 2 for preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box,
It is characterized by:
The fairing is high point close to the end smoke inlet lumen (A), i.e., fairing is penetrating at smoke inlet lumen (A) The upper and jet direction central axis angle in stream direction gradually becomes smaller inclination.
4. it is according to claim 3 for preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box, It is characterized in that:
Flow-guiding channel diameter of the fairing from high point to low spot is gradually reduced.
5. it is according to claim 4 for preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box, It is characterized in that:
The extending direction of the central axis of the flow-guiding channel is identical as lumen (B) center axis extension direction is turned to.
CN201910401379.XA 2019-05-14 2019-05-14 For preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box Pending CN110131707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910401379.XA CN110131707A (en) 2019-05-14 2019-05-14 For preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910401379.XA CN110131707A (en) 2019-05-14 2019-05-14 For preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box

Publications (1)

Publication Number Publication Date
CN110131707A true CN110131707A (en) 2019-08-16

Family

ID=67574039

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910401379.XA Pending CN110131707A (en) 2019-05-14 2019-05-14 For preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box

Country Status (1)

Country Link
CN (1) CN110131707A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101476736A (en) * 2008-12-22 2009-07-08 西安热工研究院有限公司 Zag flue flow equalizing apparatus
CN201454363U (en) * 2009-08-14 2010-05-12 中电投远达环保工程有限公司 Dual-phase rectifying smoke desulfurization absorption tower
US20120006238A1 (en) * 2009-03-24 2012-01-12 Yantai Longyuan Power Technology Co., Ltd. Pulverized coal concentrator and pulverized coal burner including the concentrator
CN104428622A (en) * 2012-07-09 2015-03-18 住友精密工业株式会社 Heat exchanger
CN107448966A (en) * 2017-08-10 2017-12-08 东北大学 Flue gas flow mixing device for fuel-firing gas-firing combustion chamber of hot-blast stove

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101476736A (en) * 2008-12-22 2009-07-08 西安热工研究院有限公司 Zag flue flow equalizing apparatus
US20120006238A1 (en) * 2009-03-24 2012-01-12 Yantai Longyuan Power Technology Co., Ltd. Pulverized coal concentrator and pulverized coal burner including the concentrator
CN201454363U (en) * 2009-08-14 2010-05-12 中电投远达环保工程有限公司 Dual-phase rectifying smoke desulfurization absorption tower
CN104428622A (en) * 2012-07-09 2015-03-18 住友精密工业株式会社 Heat exchanger
CN107448966A (en) * 2017-08-10 2017-12-08 东北大学 Flue gas flow mixing device for fuel-firing gas-firing combustion chamber of hot-blast stove

Similar Documents

Publication Publication Date Title
CN101135442B (en) Coanda gas burner apparatus and methods
RU2068154C1 (en) Premixing burner
US10281143B2 (en) Pre-mix fuel-fired appliance with improved heat exchanger interface
SA01220269B1 (en) NOx LOW NOx RADIANT WALL BURNE
JP2009522537A (en) System, apparatus and method for flameless combustion without catalyst or high temperature oxidant
CN105570890A (en) Hot flue gas self-circulation type ultra-low NOx combustor
CN110131707A (en) For preventing from occurring after high-temperature flue gas mixed flow bias current and that strengthens mixed flow turns smoke-box
CN109442411B (en) Low-nitrogen burner for gas fuel
US10816193B2 (en) Wind resistant outdoor heater burner
CN205655296U (en) Low NOx burner for gas
CN109340746A (en) A kind of premixed sulphur recovery burner of peripheric jet flow
US5603456A (en) Liquid fuel burner
CN111664454B (en) Stove burner
CN107741092A (en) A kind of burning with even gas distribution device mixes steam stove
CN208204999U (en) Distributor and the burner and water heater for applying it
JP2001330215A (en) Radiant indirect heating burner
CN201368451Y (en) Cooled combustion equipment for forced ventilation of wall body
TWI415947B (en) Top burner hot air stove
CN206001463U (en) Petrochemical heating furnace is with low nitrogen environment protection combustor
CN215294905U (en) Asymmetric low NOx nozzle
CN103900088A (en) Blowing type burner for kitchen range
CN105698174B (en) A kind of combustion gas low NO
US5797356A (en) Simplest high efficiency universal water heater
CN109442402A (en) A kind of water cooling premixed combustion method and device
JP3107713B2 (en) Burner for oil water heater

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20190816

RJ01 Rejection of invention patent application after publication