CN101696804B - Injector type smoke preheating burner with high efficiency - Google Patents

Injector type smoke preheating burner with high efficiency Download PDF

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Publication number
CN101696804B
CN101696804B CN2009101643430A CN200910164343A CN101696804B CN 101696804 B CN101696804 B CN 101696804B CN 2009101643430 A CN2009101643430 A CN 2009101643430A CN 200910164343 A CN200910164343 A CN 200910164343A CN 101696804 B CN101696804 B CN 101696804B
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China
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gas
inlet pipe
preheating
bucket
reducing
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Expired - Fee Related
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CN2009101643430A
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Chinese (zh)
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CN101696804A (en
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郭力
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Sichuan Huasuo Automation Information Engineering Co Ltd
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Sichuan Huasuo Automation Information Engineering Co Ltd
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    • Y—GENERAL 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery

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Abstract

The invention discloses an injector type smoke preheating burner with high efficiency, mainly comprising an upper plate (3), a bottom barrel (6) fixed with the upper plate (3) into a whole and provided with a chamber inside, a spray pipe (7) connected with the bottom barrel (6), and a gas inlet pipe (1), wherein the gas outlet end of the gas inlet pipe (1) is positioned in the bottom barrel (6) through the upper plate (3). The injector type smoke preheating burner is characterized in that a gas preheating channel (4) is arranged in the bottom barrel (6), wherein one end of the gas preheating channel (4) is connected with the gas inlet pipe (1), and the other end of the gas preheating channel (4) is connected with a mixture connection pipe (5) positioned in the bottom barrel (6); the gas outlet end of an air inlet pipe (2) arranged on the upper plate (3) is communicated with the chamber in the bottom barrel (6), and emery with good heat storage effect is filled in the chamber to preheat the air; and a smoke inlet pipe (9) connected with the mixture connection pipe (5) is arranged at the bottom of the bottom barrel (6). In the invention, the high-temperature smoke generated in a fire channel can be effectively and repeatedly utilized, gas entering the fire channel can be sufficiently preheated to increase the temperature of the gas quickly, and very good heat vibration conduction effect is achieved.

Description

Injector gas fume preheating efficient combustor
Technical field
The present invention relates to a kind of burner, have and be meant a kind of injector gas fume preheating efficient combustor.
Background technology
The present domestic used burner of carbon anode roasting furnace mostly is the burner of mechanical adjustment type air distribution direct injection.The air distribution of this burner is wayward, and intake and combustion gas input quantity do not match, and therefore often causes the quirk internal combustion insufficient, or local burning.And when burning is insufficient, the combustion gas that the temperature that enters is lower both had been equivalent to being blown into cold wind in the stove, under the effect of simultaneously not controlled mechanical air door negative pressure in stove, in stove, suck cold air continuously, under this double action, caused the thermal efficiency of combustion gas low, furnace temperature fluctuation is big, and is wayward.Wasted combustion gas in a large number, reduced production efficiency, made the production cost of anode high.Simultaneously, the flue gas that combustion gas is produced after the quirk internal combustion also has very high temperature, but these temperature can not be effectively used, but slatterning in vain, so equally also there is the defective that can not well reuse the energy in these burners.
Summary of the invention
The objective of the invention is to overcome that at present these burner thermals efficiency are low, wayward, and the defective of the flue gas that is generated after can not fine recycling fuel gas buring, a kind of novel injector gas fume preheating efficient combustor is provided.
Purpose of the present invention is achieved through the following technical solutions: injector gas fume preheating efficient combustor, main be solidified as a whole by last dish, with last dish and innerly be provided with the end bucket of cavity, the jet pipe that is connected with end bucket, and the outlet side is positioned at the gas inlet pipe composition of bucket inside, the end through last dish.Be provided with an end in bucket inside, the end and be connected, the gas-preheating passage that the other end is connected with the mixing tube connector that is positioned at bucket inside, the end with gas inlet pipe; The outlet side that is arranged on the air intake duct that coils is connected with the cavity of bucket inside, the end; Be provided with the smoke inlet pipe that is connected with the mixing tube tube connector in the bottom of end bucket.
Further, described mixing tube connector has the internal thread reducing of blast tube by inside, and is arranged on the reducing composition that this internal thread reducing is outside and be complementary with it; Described gas-preheating passage along end bucket the bucket wall in the shape of a spiral around layout, its inlet end is connected with the outlet side of gas inlet pipe, its outlet side then is connected with blast tube behind the internal thread reducing; Described jet pipe links to each other with the reducing sealing behind end bucket, and smoke inlet pipe is connected with jet pipe behind reducing; Inside at blast tube is provided with nozzle, and also is provided with more than one airport on the tube wall of reducing.
In order to ensure carrying out preheating to combustion gas and the air that enters in the jet pipe fully, be filled with fire clay in the cavity bottom of end bucket, then be filled with the heat-conducting medium of forming by the emergy of 3mm～5mm on this cavity top.The combustion air that is entered by air intake duct enters jet pipe from described airport behind the slit of this heat-conducting medium.
Described air intake duct inside is provided with latus rectum, and forms the plane that facings the wind along the central axis of this latus rectum on its tube wall, and is provided with the air seam that is connected with this latus rectum on this facings the wind the plane; Also be provided with the wing bolt that is used to regulate this air seam openings of sizes in this latus rectum inside.Dismantle nozzle for convenience, on last coiling, also be provided with the plug that is complementary with described blast tube.
Can reach the highest utilization ratio in order to ensure the flue gas in the quirk, having a span between the central axis of described smoke inlet pipe and the central axis of jet pipe is the angle a of 0 °＜a＜90 °, and its best value is 26 °.
Described nozzle then is provided with the large cylinder of regular polygon groove by inside and is solidified as a whole with this large cylinder and the inner small cylinder that is provided with latus rectum is formed.And the inlet end at gas inlet pipe also is provided with the spherical joint that is complementary with it.
The present invention compared with prior art has the following advantages and beneficial effect:
(1) the present invention can effectively reuse the high-temperature flue gas that is produced in the quirk, can not only carry out preheating to the combustion gas that enters in the quirk fully, makes its programming rate fast, but also has good thermal vibration conducting effect.
(2) jet flame of the present invention is long, can reduce the upper and lower temperature difference in the fireshaft greatly, thereby can effectively prolong the service life of body of heater.
(3) gas flow rate of the present invention is fast, and the burner bottom temp is reduced to about 800 ℃, thereby has effectively reduced the scaling loss of burner.
(4) thermal efficiency height of the present invention, air distribution is more reasonable, thereby makes that the fuel gas buring that enters in the quirk is more abundant, and can well save combustion gas is 20%.
(5) bucket inside is filled with emergy at the end of the present invention, therefore can carry out preheating to the combustion air that enters bucket inside, the end fully, thereby the utilization rate of combustion gas can further be provided.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention;
Fig. 2 is an internal thread variable-diameter structure schematic diagram of the present invention;
Fig. 3 is a variable-diameter structure schematic diagram of the present invention;
Fig. 4 is a gas-preheating pipeline configuration schematic diagram of the present invention;
Fig. 5 is the dish structural representation of going up of the present invention;
Fig. 6 is the plan structure schematic diagram of Fig. 5;
Fig. 7 is the structural representation of air intake duct of the present invention;
Fig. 8 is the plan structure schematic diagram of air intake duct;
Fig. 9 is a nozzle arrangements schematic diagram of the present invention;
Figure 10 is the end face structure schematic diagram of nozzle.
Wherein, the parts name of Reference numeral correspondence is called among the figure:
The 1-gas inlet pipe; The 2-air intake duct; The last dish of 3-; 4-gas-preheating passage; 5-mixing tube connector; Bucket at the bottom of the 6-; The 7-jet pipe; The 8-nozzle; The 9-smoke inlet pipe; 10-internal thread reducing; The 11-reducing; The 12-wing bolt; The 13-blast tube; The 14-airport; The 15-plug; 16-regular polygon groove; The 17-latus rectum; The 18-spherical joint; The 19-fire clay; The 20-heat-conducting medium.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment
Shown in Fig. 1,5,6, the profile that goes up dish 3 of the present invention is in the form of annular discs, end bucket 6 with should go up dish 3 and be solidified as a whole.During installation, this end bucket 6 is positioned over the gas well mouth inside of quirk.The inside of end bucket 6 is a cavity, and is filled with the fire clay 19 of 900# in the bottom of this cavity, is filled with the heat-conducting medium 20 that combustion air is carried out preheating on the top of this cavity (between fire clay 19 and the last dish 3).In order to ensure fully preheating of combustion air, these heat-conducting medium 20 preferential employing diameters are the emergy of 3mm～5mm.
The inside of end bucket 6 be provided with on dish 3 be fixedly linked mix tube connector 5, this mixes tube connector 5 by internal thread reducing 10 shown in Figure 2, and reducing 11 shown in Figure 3 is formed.Described reducing 11 is arranged on the bottom outside of internal thread reducing 10, and links to each other with 10 sealings of internal thread reducing.And between reducing 11 and internal thread reducing 10, also form one and be used for the mixing cavity that flue gas, combustion gas and combustion air mix mutually.The inside of internal thread reducing 10 is provided with the blast tube of being made up of small one and large one two latus rectums 13, also is provided with nozzle 8 in the bottom of this blast tube 13 simultaneously.
Also be provided with the jet pipe 7 that is used for fuel gas injection in the bottom of end bucket 6, an end of this jet pipe 7 is connected with reducing 11 through the fire clay 19 of end bucket 6 bottoms, and the other end of jet pipe 7 is then stretched in the outside of end bucket 6.In order to ensure effect, the central axis of this jet pipe 7 is perpendicular to plane, last dish 3 place.Simultaneously, also be provided with smoke inlet pipe 9, and this smoke inlet pipe 9 is connected with reducing 11 through whole fire clay 19 also in the inside of end bucket 6.Therefore, smoke inlet pipe 9 and jet pipe 7 all are connected with formed mixing cavity, thereby make the high-temperature flue gas in the quirk to eject from jet pipe 7 behind smoke inlet pipe 9, mixing cavity again.
In order to ensure result of use, also having a span between the central axis of the central axis of jet pipe 7 and smoke inlet pipe 9 is 0 °～90 ° angle a.According to long experiment and summary, its best results when the value of this angle a is 26 °.Simultaneously, the airport 14 that the combustion air after also being provided with more than one confession preheating on the sidewall of reducing 11 enters, and this airport 14 also is connected with described mixing cavity.
The inside of end bucket 6 also is provided with gas-preheating passage 4 shown in Figure 4, and this gas-preheating passage 4 adopts metal material to be made.Consider actual effect, these gas-preheating passage 4 preferential stainless steel materials that adopt, in order to guarantee combustion gas fully preheating in this gas-preheating passage 4, this gas-preheating passage 4 need along end bucket 6 the bucket wall in the shape of a spiral around layout, make it be embedded in the inside of the heat-conducting medium 20 of being filled.The optimum length of this gas-preheating passage 4 is 3m～5m.As shown in Figure 1, the inlet end of gas inlet pipe 1 also is provided with spherical joint 18, and the inside that dish 3 is positioned at end bucket 6 is then passed in the outlet side of this gas inlet pipe 1, and links to each other with the end sealing of gas-preheating passage 4.The tube wall that the other end of gas-preheating passage 4 then passes internal thread reducing 10 is connected with blast tube 13.
Dismantle nozzle 8 for convenience, on last dish 3, also be provided with the plug 15 that is complementary with blast tube 13.This plug 15 passes dish 3 and is threaded with blast tube 13, so that dismantle.Simultaneously, on last dish 3, also be provided with Fig. 7, air intake duct 2 shown in Figure 8.The inside of this air intake duct 2 is provided with latus rectum, and this latus rectum is connected with the cavity of end bucket 6 inside, owing to having the particle slit between the emergy particle that is filled in end bucket 6 inside, simultaneously these emergies have the function of accumulation of heat, so the particle slit between all emergy particles has just formed one and is used for that combustion air flows and the air flow channel of heating combustion air.Under the negative pressure that the combustion air that enters from air intake duct 2 produces, enter the mixing cavity from airport 14 through this air flow channel when natural gas injection.Enter combustion-supporting air quantity in the air intake duct 2 for the ease of adjusting, on its tube wall, also form the plane that facings the wind along the central axis of this air intake duct 2, and on this facings the wind the plane, also be provided with the air seam that is connected with its inner latus rectum.Simultaneously also be provided with the wing bolt 12 that is complementary with it in the latus rectum inside of this air intake duct 2.Because during this wing bolt 12 of rotation, the screw rod of this wing bolt 12 just can move up and down along the latus rectum of air intake duct 2, thereby seal up this air seam to reach the purpose of regulating this air seam size.
Nozzle 8 of the present invention is shown in Fig. 9,10.This nozzle 8 is fixedly formed by two different cylinders of diameter, and these two cylindrical central axis are located on the same line.The cylinder inside bigger at diameter is provided with regular polygon groove 16, and the cylinder inside less at diameter is provided with latus rectum 17.As required, this regular polygon groove 16 can be positive triangle, square, regular pentagon and regular hexagon or the like.Simultaneously also be provided with screw thread, can not become flexible when guaranteeing that this nozzle 8 is arranged on the bottom of blast tube 13 in the less cylinder outside of diameter.When needing repairing, only need disassemble plug 15, use the instrument that is complementary with this regular polygon groove 16 to become and easily nozzle 8 to be disassembled.
During use, combustion gas is crossed gas inlet pipe 1 and is entered gas-preheating passage 4 through spherical joint 18 high velocity stream.Because bucket of the whole end 6 is the gas well mouth inside that is arranged at quirk, therefore the gas well mouth up to 1150 ℃ high temperature heat radiation under this gas-preheating passage 4 and heat-conducting medium 20 will soon be heated, make its tube wall and heat-conducting medium become high temperature.Combustion gas just can be heated when flowing in gas-preheating passage 4, after blast tube 13 and nozzle 8 enter into the mixing cavity inside, goes out through jet pipe 7 high velocity jet again.When combustion gas when jet pipe 7 high velocity jet are gone out, in heat-conducting medium 20 inside and smoke inlet pipe 9 inside can produce negative pressure simultaneously.Therefore extraneous a large amount of combustion air just can enter the mixing cavity inside through air intake duct 2, heat-conducting medium 20, airport 14, blast tube 13 and nozzle 8 successively; In like manner, the high-temperature flue gas in the quirk then enters into the mixing cavity inside behind smoke inlet pipe 9, and fully mixes once more and then eject from jet pipe 7 with combustion gas, combustion air after the preheating.
As mentioned above, just can realize the present invention preferably.

Claims (10)

1. injector gas fume preheating efficient combustor, mainly by last dish (3), be solidified as a whole with last dish (3) and the inner end bucket (6) of cavity, the jet pipe (7) that is connected with end bucket (6) of being provided with, and the outlet side is positioned at inner gas inlet pipe (1) composition of end bucket (6) through last dish (3), it is characterized in that: be provided with an end in end bucket (6) inside and be connected, the gas-preheating passage (4) that the other end mixing tube connector (5) inner with being positioned at end bucket (6) is connected with gas inlet pipe (1); The outlet side that is arranged on the air intake duct (2) on the dish (3) is connected with the cavity of end bucket (6) inside; Also be provided with in the bottom of end bucket (6) and mix the smoke inlet pipe (9) that tube connector (5) is connected.
2. injector gas fume preheating efficient combustor according to claim 1, it is characterized in that: described mixing tube connector (5) has the internal thread reducing (10) of blast tube (13) by inside, and is arranged on reducing (11) composition that this internal thread reducing (10) is outside and be complementary with it; Described gas-preheating passage (4) along end bucket (6) the bucket wall in the shape of a spiral around layout, its inlet end is connected with the outlet side of gas inlet pipe (1), its outlet side then is connected with blast tube (13) behind internal thread reducing (10); Described jet pipe (7) links to each other with reducing (11) sealing behind end bucket (6), and smoke inlet pipe (9) then is connected with jet pipe (7) behind reducing (11); Be provided with nozzle (8) in the inside of blast tube (13), and on the tube wall of reducing (11), also be provided with more than one airport (14).
3. injector gas fume preheating efficient combustor according to claim 2 is characterized in that: the cavity bottom at end bucket (6) is filled with fire clay (19), then is filled with heat-conducting medium (20) on this cavity top; Slit between the described heat-conducting medium (20) forms air flow channel, and the combustion air that is entered by air intake duct (2) enters jet pipe (7) from described airport (14) behind this air flow channel.
4. injector gas fume preheating efficient combustor according to claim 3 is characterized in that: it is the heat-conducting medium that the emergy of 3mm～5mm is formed that described cavity top is filled with by diameter.
5. according to each described injector gas fume preheating efficient combustor of claim 1～4, it is characterized in that: described air intake duct (2) inside is provided with latus rectum, and the central axis along this latus rectum forms the plane that facings the wind on its tube wall, be provided with the air seam that is connected with this latus rectum on this facings the wind the plane; Also be provided with the wing bolt (12) that is used to regulate this air seam openings of sizes in this latus rectum inside.
6. injector gas fume preheating efficient combustor according to claim 2 is characterized in that: also be provided with the plug (15) that is complementary with described blast tube (13) on last dish (3).
7. injector gas fume preheating efficient combustor according to claim 2 is characterized in that: span of existence is 0 °～90 ° angle a between the central axis of the central axis of described smoke inlet pipe (9) and jet pipe (7).
8. injector gas fume preheating efficient combustor according to claim 7 is characterized in that: the value of described angle a is 26 °.
9. injector gas fume preheating efficient combustor according to claim 2 is characterized in that: described nozzle (8) is provided with the large cylinder of regular polygon groove (16) by inside and is solidified as a whole with this large cylinder and small cylinder that inside is provided with latus rectum (17) is formed.
10. injector gas fume preheating efficient combustor according to claim 1 and 2 is characterized in that: the inlet end at gas inlet pipe (1) also is provided with the spherical joint (18) that is complementary with it.
CN2009101643430A 2009-09-04 2009-09-04 Injector type smoke preheating burner with high efficiency Expired - Fee Related CN101696804B (en)

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CN2009101643430A CN101696804B (en) 2009-09-04 2009-09-04 Injector type smoke preheating burner with high efficiency

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CN2009101643430A CN101696804B (en) 2009-09-04 2009-09-04 Injector type smoke preheating burner with high efficiency

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CN101696804B true CN101696804B (en) 2011-07-20

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB944372A (en) * 1961-08-14 1963-12-11 Selas Corp Of America Improvements in or relating to an industrial burner and method of operating same
CN1821658A (en) * 2006-03-14 2006-08-23 杜英玮 Preheating follow up variable gap gas distributing type gas range burner
CN201190106Y (en) * 2007-12-28 2009-02-04 中国铝业股份有限公司 Can-type calciner of carbon
CN201237218Y (en) * 2008-06-19 2009-05-13 四川华索自动化信息工程有限公司 Injector type gas burner
CN201265862Y (en) * 2008-08-14 2009-07-01 四川华索自动化信息工程有限公司 Pre-heating injection type gas burner used for carbon element anode/cathode calcining furnace
CN201487961U (en) * 2009-09-04 2010-05-26 四川华索自动化信息工程有限公司 Injector gas preheating efficient burner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB944372A (en) * 1961-08-14 1963-12-11 Selas Corp Of America Improvements in or relating to an industrial burner and method of operating same
CN1821658A (en) * 2006-03-14 2006-08-23 杜英玮 Preheating follow up variable gap gas distributing type gas range burner
CN201190106Y (en) * 2007-12-28 2009-02-04 中国铝业股份有限公司 Can-type calciner of carbon
CN201237218Y (en) * 2008-06-19 2009-05-13 四川华索自动化信息工程有限公司 Injector type gas burner
CN201265862Y (en) * 2008-08-14 2009-07-01 四川华索自动化信息工程有限公司 Pre-heating injection type gas burner used for carbon element anode/cathode calcining furnace
CN201487961U (en) * 2009-09-04 2010-05-26 四川华索自动化信息工程有限公司 Injector gas preheating efficient burner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JP昭57-87512A 1982.06.01

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