CN105318307B - A kind of double-barrel transverse formula expansion chamber sprays denitration corner tube boiler - Google Patents

A kind of double-barrel transverse formula expansion chamber sprays denitration corner tube boiler Download PDF

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Publication number
CN105318307B
CN105318307B CN201410378998.9A CN201410378998A CN105318307B CN 105318307 B CN105318307 B CN 105318307B CN 201410378998 A CN201410378998 A CN 201410378998A CN 105318307 B CN105318307 B CN 105318307B
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boiler
water
wall
denitration
comer
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CN105318307A (en
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孙宇健
孙伟东
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HARBIN SIFANG BOILER CO., LTD.
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HARBIN SIFANG BOILER Co Ltd
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    • 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
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

Abstract

Denitration corner tube boiler, including boiler furnace and fire grate part are sprayed the present invention relates to a kind of double-barrel transverse formula expansion chamber, wherein, fire grate part is arranged on the bottom of boiler furnace part, it is characterized in that:In boiler body(1)Upper setting boiler supports mechanism and boiler water cycle mechanism, boiler supports mechanism support down-comer by two vertically disposed side cold walls(24), and the side wall feedwater down-comer connected with side cold wall support down-comer (24)(22)Constitute, boiler water cycle mechanism is by passage rear wall water-cooling wall(31)With expansion chamber upper collecting chamber(16), lower header(33)Composition, in boiler body(1)Upper spray denitration cyclonic separation sedimentation device, it is by denitration shower(34), denitration nozzle(18), denitrfying agent feeder(35), sedimentation separation room(27)Composition, Stability Analysis of Structures high with support strength, reduces the discharge of nitrogen oxides, reduces air pollution, the features such as improving the thermal efficiency, energy-saving environmental protection safety.

Description

A kind of double-barrel transverse formula expansion chamber sprays denitration corner tube boiler
Technical field
The present invention relates to boiler technology field, the discharge of national emission standard of air pollutants for boilers particularly can be met It is required that, solve discharged nitrous oxides concentration height, a kind of double-barrel transverse formula expansion chamber spray denitration corner tube boiler of pollution environment.
Background technology
It is well known that current corner tube boiler structure is to arrange four down-comers not being heated as branch around boiler body Support, boiler intensity is low, supports insecure, easily causes security incident.It is unfavorable because the integral arrangement of corner tube boiler is limited by intensity In large-sized boiler manufacture.Common corner tube boiler fire grate length can not be lengthened fully, and fuel combustion is insufficient, and efficiency of fire coal is low, no Energy burning low grade coal, phosphorus content is high, and energy expenditure is big.Furnace outlet flue gas directly washes away Flag pattern heat surface coiled pipe, and abrasion is tight Weight, without expansion chamber, dust can not be settled, and heating surface is few, and service life is low, and maintenance rate is high, increase use cost.With country Environmental protection policy is increasingly strict, and known corner tube boiler can not meet country will on the discharge of emission standard of air pollutants for boilers Ask, discharged nitrous oxides concentration is high, pollute environment.Therefore, how to solve boiler does not have expansion chamber and ash fall, and solves Heating surface area is small, and furnace outlet flue gas does not wash away Flag pattern heat surface coiled pipe directly, reduces and weares and teares, prolonged boiler service life, Reduce maintenance frequency, reduce use cost, in addition, solve Denitration in Boiler, reduce discharged nitrous oxides, energy-conserving and environment-protective etc. into For at present it is in the urgent need to address the problem of.
The content of the invention
The purpose of the present invention is:It is improved for prior art common problem, overcomes the deficiencies in the prior art Expansion chamber is carried there is provided one kind with defect, high intensity support, structure safety and stability reduces the discharge of nitrogen oxides, improves boiler A kind of double-barrel transverse formula expansion chamber spray denitration corner tube boiler of the thermal efficiency.
The technical solution adopted for the present invention to solve the technical problems is:A kind of double-barrel transverse formula expansion chamber sprays denitration Corner tube boiler, including boiler furnace part, fire grate part, boiler furnace part include hanging down around boiler body 1, boiler body 1 Four directly set have the boiler Left-side support down-comer 8 and boiler Right side support rear arch feedwater down-comer 25 of supporting role, The upper drum 21 and lower drum 30 set in the upper right portion of boiler body 1, the convection bank 29 between upper drum 21 and lower drum 30, The water inlet pipe 20 and outlet pipe 19 connected with upper drum 21, face arch down-comer 3 and rear arch down-comer 23, and last time water pipe 17, Superheater 14, side water wall 4, burner hearth 6, face arch water-cooling wall 7, face arch lower header 9, side water wall upper collecting chamber 2, side wall water cooling Wall lower header 10, rear arch water-cooling wall 32, front and rear arch upper collecting chamber 15 and lower header 33, and exhanst gas outlet 28 and dust export, stove Row part is arranged on the bottom of boiler furnace part and is connected with the boiler body 1 of boiler furnace part, it is characterised in that:
A, boiler furnace part boiler body 1 rear arch water-cooling wall 32, upper drum 21, lower drum 30 and the two between Convection bank 29, and interval setting boiler supports mechanism and the boiler water cycle mechanism, boiler respectively that side water wall 4 is constituted Supporting mechanism supports down-comers 24 by two vertically disposed side cold walls, and with side cold wall support the side wall that down-comer 24 is connected to Water down-comer 22 is constituted, side cold wall support down-comer 24 it is upper and lower respectively with side water wall upper collecting chamber 2 and side water wall Header 10 is connected, and boiler water cycle mechanism is made up of passage rear wall water-cooling wall 31 and expansion chamber upper collecting chamber 16, lower header 33, is such as schemed Shown in 1-4.
B, boiler furnace part boiler body 1 rear arch water-cooling wall 32, the passage rear wall water of boiler water cycle mechanism Interval set that cold wall 31 and side water wall 4 are constituted sprays denitration cyclonic separation sedimentation device, and it is taken off by denitration shower 34 Nitre nozzle 18, denitrfying agent feeder 35, sedimentation separation room 27 is constituted, wherein, denitration shower 34 is uniformly horizontally set on rear arch Denitration is uniformly arranged on the upper interval of passage rear wall water-cooling wall 31 of water-cooling wall 32 and boiler water cycle mechanism, denitration shower 34 Nozzle 18, the bottom of denitration shower 34 is connected with denitrfying agent feeder 35, as Figure 1-4.
C, the design of fire grate part use reciprocal grate structure, and it slides expanding stent 12, boiler supports by reciprocal grate 11 13 compositions, as shown in Fig. 1,3,4.Need exist for statement be that Fig. 1,3,4 provide is reciprocal grate structure, what Fig. 2 was provided is Traveling-grate stoker structure.This technology is also applied for other fire grate structures.
The denitration nozzle 18 being uniformly arranged on described denitration shower 34 sets or upper and lower two-way set to be unidirectional upwards Put, denitration shower 34 is set for single row or multiple rows.Here, the denitration nozzle 18 on denitration shower 34 is unidirectionally to set upwards Put, unidirectional spray denitration sedimentation separation upwards is realized, as shown in Fig. 1,2,4;Can also it lay denitration shower 34 is upper and lower Denitration nozzle 18 is put, realizes that Bidirectional spray denitration sedimentation separation is as shown in Figure 3.In addition, denitration shower 34 is single row or multiple rows Set, denitration shower 34 can be designed as multiple rows of, such as two rows up and down, or three or four rows etc..
The passage rear wall water-cooling wall 31 of described boiler water cycle mechanism is designed as co-current contact after the first adverse current of cyclone type Top indent, lower lobes it is inverted S-shaped, also, passage rear wall water-cooling wall 31 it is upper and lower respectively with expansion chamber upper collecting chamber 16 and next part Case 33 is connected, as Figure 1-4.Here, passage rear wall water-cooling wall 31 can be set to be single or multiple, such as two rows, or Three or four rows etc..
The sedimentation separation room 27 of described spray denitration cyclonic separation sedimentation device is by rear arch water-cooling wall 32, passage rear wall water Cold wall 31, side water wall 4, and denitration nozzle 18 and the top and the bottom of denitration shower 34 interval are constituted, as Figure 1-4.
The course of work and principle of this technology be:It is that coal is fallen on reciprocal grate 11 under gravity, in machinery first Send into burner hearth 6 and burnt under dynamic action, the heat of generation is by the face arch water-cooling wall 7 of burner hearth 6, rear arch water-cooling wall 32, side Wall water-cooling wall 4 absorbs, the flue gas after cooling behind sedimentation separation room 27 on be advanced into convection bank 29 carry out wash away heat exchange, it is complete Into whole heat transfer process, discharged by exhaust opening 28.Wherein, dust is discharged after being settled through sedimentation separation room 27 by dust export, complete Into the boiler smoke course of work.Next to that, boiler blow-down water flows into upper drum 21 through water inlet pipe 20, and boiler water outlet is flowed through outlet pipe 19 Go out drum.Specific one is fed water by upper drum 21, face arch down-comer 3, port side boiler support down-comer 8, face arch lower header 9, is passed through Arch upper collecting chamber 15, last time water pipe 17 return to upper drum 21 before and after reciprocal grate 11 and burner hearth 6 are flowed into after exchanging heat, and complete face arch water cooling The water circulation of wall 7;Two be by upper drum 21, side wall feedwater down-comer 22, side cold wall support down-comer 24, side wall lower header 10 Feedwater, reciprocal grate 11 and burner hearth 6 flow into side water wall upper collecting chamber 2, last time water pipe 17 after exchanging heat and return to upper drum 21, complete The water circulation of side water wall 4;Three be by upper drum 21, rear arch down-comer 23, starboard boiler support down-comer 25, lower header 33 to Arch upper collecting chamber 15, expansion chamber upper collecting chamber 16, last time water pipe 17 are returned to before and after water, warp, reciprocal grate 11 and burner hearth 6 are flowed into after exchanging heat Upper drum 21, completes rear arch water-cooling wall 32, passage rear wall 31, the water circulation of sedimentation separation room 27;Four be upper drum 21 through convection tube Beam 29 enters lower drum 30, due to density contrast, and a part rises, and a part declines, and completes upper and lower drum 21,30 and convection tube Natural Circulation between beam 29, completes whole work process.Need to stress is that this technology spray denitration cyclonic separation is sunk Falling unit and boiler water cycle mechanism, the former be mainly progress spray denitration and cyclonic separation sedimentation, the exiting flue gas of burner hearth 6 with Following current is contacted after the first adverse current of denitrfying agent that denitration nozzle 18 is ejected, in sedimentation separation room 27(Or referred to as denitration is sprayed Drench cyclone settling separation chamber)It is middle to be chemically reacted, denitrating flue gas depositing dust separation infall process is completed, nitrogen oxides row is reduced Put, energy-conserving and environment-protective, this technology spray denitration cyclonic separation sedimentation device can be widely applied on other various boilers.The latter master It is the increase in one group of boiler water cycle process, i.e. passage rear wall water-cooling wall 31 and is designed as co-current contact after the first adverse current of cyclone type Top indent, lower lobes it is inverted S-shaped(Or referred to as arc cyclone structure), it is small to improve heating surface area, furnace outlet flue gas Flag pattern heat surface coiled pipe is not washed away directly, abrasion is reduced, and prolonged boiler service life reduces maintenance frequency, and reduction is used into This, in addition, this technology is not limited only to the structure of reciprocal grate 11, it would however also be possible to employ other fire grate structures, such as traveling-grate stoker 11 structures etc., such as Fig. 2.Denitrfying agent uses liquefied ammonia, ammonia, urea liquid in this technology.This technology is adapted to hot-water boiler, steam copper Stove etc. or other types of boiler.In addition, this technology can be widely applied to other various corner tube boilers.
The beneficial effect of this technology is compared with existing technology in other words to be had the special feature that and is:Design spray denitration whirlwind Sedimentation device and boiler water cycle mechanism are separated, the sedimentation separation room provided with spray denitration and cyclone separating structure, with high-strength Degree support, structure safety and stability reduces the discharge of nitrogen oxides, reduces air and dust pollution, improves boiler thermal output, energy-conservation The features such as Environmental Safety.
Brief description of the drawings
Fig. 1 is the present invention(Spray the top of denitration pipe 34 and denitration nozzle 18 is set, passage rear wall water-cooling wall 31 is in top It is recessed, lower lobes it is inverted S-shaped, combustion apparatus be reciprocal grate 11)Front view.
Fig. 2 is second of structure of the invention(Spray the top of denitration pipe 34 and denitration nozzle 18, passage rear wall water-cooling wall 31 are set For top indent, lower lobes it is inverted S-shaped, combustion apparatus is traveling-grate stoker)Front view.
Fig. 3 is the third structure of the invention(Spray the upper and lower setting denitration nozzle 18 of denitration pipe 34, passage rear wall water-cooling wall 31 be top indent, lower lobes it is inverted S-shaped, combustion apparatus be reciprocal grate 11)Front view.
Fig. 4 is the 4th kind of structure of the invention(Spray the top of denitration pipe 34 and denitration nozzle 18, passage rear wall water-cooling wall 31 are set For top indent, lower lobes it is inverted S-shaped, combustion apparatus be set in reciprocal grate 11, also, convection bank 29 flue gas every The structure of plate 36,)Front view.Here, the structure of flue gas dividing plate 36 is set in convection bank 29, mainly existed for increase flue gas Residence time in convection bank 29, the thermal efficiency can be improved.
In figure:1 boiler body, 2 side water wall upper collecting chambers, 3 face arch down-comers, 4 side water walls, 5 throttles, 6 stoves Thorax, 7 face arch water-cooling walls, 8 port side boilers support down-comer(Or referred to as side wall down-comer), 9 face arch lower headers(Or claim For face arch header), 10 side wall lower headers, 11 reciprocal grates, 12 slide expanding stent, 13 boiler supports, 14 superheaters, 15 Front and rear arch upper collecting chamber, 16 expansion chamber upper collecting chambers, 17 last time water pipes, 18 denitration nozzles, 19 outlet pipes, 20 water inlet pipes, 21 upper drums, 22 side wall feedwater down-comers, 23 rear arch down-comers, 24 side cold wall support down-comers, 25 starboard boilers support down-comer(Or claim For rear arch feed pipe), 26 support reinforcing beams, 27 sedimentation separation rooms(Or referred to as denitration Sproy cyclone sedimentation separation room), 28 cigarettes Gas is exported(Or referred to as exhaust opening), 29 convection banks, 30 lower drums, 31 passage rear wall water-cooling walls, 32 rear arch water-cooling walls, 33 Lower header(Or referred to as rear arch water-cooling wall passage rear wall lower header), 34 denitration showers, 35 denitrfying agent feeders(Or be referred to as Denitration agent feeding device), 36 flue gas dividing plates.
Embodiment
The embodiment of the present invention, as Figure 1-4, a kind of double-barrel transverse formula expansion chamber spray denitration cornue boiler Stove, including boiler furnace part, fire grate part, boiler furnace part include boiler body 1, and the surrounding vertical of boiler body 1 is set Four have supporting role boiler Left-side support down-comers 8 and boiler Right side support rear arch feedwater down-comers 25, in boiler Upper drum 21 and lower drum 30 that the upper right portion of body 1 is set, convection bank 29 between upper drum 21 and lower drum 30, with upper pot The water inlet pipe 20 and outlet pipe 19 of the connection of cylinder 21, face arch down-comer 3 and rear arch down-comer 23, and last time water pipe 17, superheater 14, side water wall 4, burner hearth 6, face arch water-cooling wall 7, face arch lower header 9, side water wall upper collecting chamber 2, side water wall next part Case 10, rear arch water-cooling wall 32, front and rear arch upper collecting chamber 15 and lower header 33, and exhanst gas outlet 28 and dust export, fire grate part It is arranged on the bottom of boiler furnace part and is connected with the boiler body 1 of boiler furnace part, it is characterised in that:
A, boiler furnace part boiler body 1 rear arch water-cooling wall 32, upper drum 21, lower drum 30 and the two between Convection bank 29, and interval setting boiler supports mechanism and the boiler water cycle mechanism, boiler respectively that side water wall 4 is constituted Supporting mechanism supports down-comers 24 by two vertically disposed side cold walls, and with side cold wall support the side wall that down-comer 24 is connected to Water down-comer 22 is constituted, side cold wall support down-comer 24 it is upper and lower respectively with side water wall upper collecting chamber 2 and side water wall Header 10 is connected, and boiler water cycle mechanism is made up of passage rear wall water-cooling wall 31 and expansion chamber upper collecting chamber 16, lower header 33, is such as schemed Shown in 1-4.
B, boiler furnace part boiler body 1 rear arch water-cooling wall 32, the passage rear wall water of boiler water cycle mechanism Interval set that cold wall 31 and side water wall 4 are constituted sprays denitration cyclonic separation sedimentation device, and it is taken off by denitration shower 34 Nitre nozzle 18, denitrfying agent feeder 35, sedimentation separation room 27 is constituted, wherein, denitration shower 34 is uniformly horizontally set on rear arch Denitration is uniformly arranged on the upper interval of passage rear wall water-cooling wall 31 of water-cooling wall 32 and boiler water cycle mechanism, denitration shower 34 Nozzle 18, the bottom of denitration shower 34 is connected with denitrfying agent feeder 35, as Figure 1-4.
C, the design of fire grate portion use reciprocal grate structure, and it slides expanding stent 12, boiler supports 13 by reciprocal grate 11 Composition, as shown in Fig. 1,3,4.Need exist for statement be that Fig. 1,3,4 provide is reciprocal grate structure, what Fig. 2 was provided is chain Bar fire grate structure.This technology is also applied for other fire grate structures.
The denitration nozzle 18 being uniformly arranged on described denitration shower 34 sets or upper and lower two-way set to be unidirectional upwards Put, denitration shower 34 is set for single row or multiple rows.Here, the denitration nozzle 18 on denitration shower 34 is unidirectionally to set upwards Put, unidirectional spray denitration sedimentation separation upwards is realized, as shown in Fig. 1,2,4;Can also it lay denitration shower 34 is upper and lower Denitration nozzle 18 is put, realizes that Bidirectional spray denitration sedimentation separation is as shown in Figure 3.In addition, denitration shower 34 is single row or multiple rows Set, denitration shower 34 can be designed as multiple rows of, such as two rows up and down, or three or four rows etc..
The passage rear wall water-cooling wall 31 of described boiler water cycle mechanism is designed as co-current contact after the first adverse current of cyclone type Top indent, lower lobes it is inverted S-shaped, also, passage rear wall water-cooling wall 31 it is upper and lower respectively with expansion chamber upper collecting chamber 16 and next part Case 33 is connected, as Figure 1-4.Here, passage rear wall water-cooling wall 31 can be set to be single or multiple, such as two rows, or Three or four rows etc..
The sedimentation separation room 27 of described spray denitration cyclonic separation sedimentation device is by rear arch water-cooling wall 32, passage rear wall water Cold wall 31, side water wall 4, and denitration nozzle 18 and the top and the bottom of denitration shower 34 interval are constituted, as Figure 1-4.

Claims (5)

1. a kind of double-barrel transverse formula expansion chamber sprays denitration corner tube boiler, including boiler furnace part, fire grate part, Boiler Furnace Body portion includes boiler body(1), boiler body(1)Four boiler Left-side supports with supporting role that surrounding vertical is set Down-comer (8) and boiler Right side support rear arch feedwater down-comer (25), the upper drum set in boiler body (1) upper right portion (21) and lower drum (30), convection bank (29) between upper drum (21) and lower drum (30), with entering that upper drum (21) is connected Water pipe (20) and outlet pipe (19), face arch down-comer (3) and rear arch down-comer (23), and last time water pipe (17), superheater (14), side water wall (4), burner hearth (6), face arch water-cooling wall (7), face arch lower header (9), side water wall upper collecting chamber(2), side Wall water-cooling wall lower header(10), rear arch water-cooling wall(32), front and rear arch upper collecting chamber(15)And lower header(33), and exhanst gas outlet (28)And dust export, fire grate part be arranged on the bottom of boiler furnace part and with the boiler body of boiler furnace part(1) It is connected, it is characterised in that:
A, the boiler body in boiler furnace part(1)Rear arch water-cooling wall(32), upper drum (21), lower drum (30) and the two Between convection bank (29), and interval setting boiler supports mechanism and the boiler water cycle respectively that side water wall (4) is constituted Mechanism, boiler supports mechanism supports down-comer (24) by two vertically disposed side cold walls, and supports down-comer with side cold wall (24) the side wall feedwater down-comer (22) of connection is constituted, side cold wall support down-comer (24) it is upper and lower respectively with side water wall Upper collecting chamber (2) is connected with side water wall lower header (10), and boiler water cycle mechanism is by passage rear wall water-cooling wall (31) and sedimentation Room upper collecting chamber (16), lower header (33) composition;
B, boiler furnace part boiler body (1) rear arch water-cooling wall (32), the passage rear wall water of boiler water cycle mechanism Interval set that cold wall (31) and side water wall (4) are constituted sprays denitration cyclonic separation sedimentation device, and it is by denitration shower (34), denitration nozzle (18), denitrfying agent feeder (35), sedimentation separation room (27) composition, wherein, denitration shower (34) is uniform It is horizontally set on passage rear wall water-cooling wall (31) upper interval of rear arch water-cooling wall (32) and boiler water cycle mechanism, denitration spray Denitration nozzle (18), denitration shower are uniformly arranged on pipe (34)(34)Bottom connected with denitrfying agent feeder (35);
C, the design of fire grate part use reciprocal grate structure, and it slides expanding stent by reciprocal grate (11)(12), boiler supports (13)Composition.
2. a kind of double-barrel transverse formula expansion chamber spray denitration corner tube boiler as claimed in claim 1, it is characterised in that:It is described Denitration shower(34)On the denitration nozzle that is uniformly arranged(18)Set or upper and lower two-way setting to be unidirectional upwards.
3. a kind of double-barrel transverse formula expansion chamber spray denitration corner tube boiler as claimed in claim 1 or 2, it is characterised in that: The passage rear wall water-cooling wall of described boiler water cycle mechanism(31)It is designed as after the first adverse current of cyclone type in the top of co-current contact It is recessed, inverted S-shaped, also, the passage rear wall water-cooling wall of lower lobes(31)It is upper and lower respectively with expansion chamber upper collecting chamber(16)And lower header (33)Connection.
4. a kind of double-barrel transverse formula expansion chamber spray denitration corner tube boiler as claimed in claim 1 or 2, it is characterised in that: The sedimentation separation room of described spray denitration cyclonic separation sedimentation device(27)By rear arch water-cooling wall(32), passage rear wall water-cooling wall (31), side water wall(4), and denitration nozzle(18)With denitration shower(34)Top and the bottom interval is constituted.
5. a kind of double-barrel transverse formula expansion chamber spray denitration corner tube boiler as claimed in claim 3, it is characterised in that:It is described Spray denitration cyclonic separation sedimentation device sedimentation separation room(27)By rear arch water-cooling wall(32), passage rear wall water-cooling wall (31), side water wall(4), and denitration nozzle(18)With denitration shower(34)Top and the bottom interval is constituted.
CN201410378998.9A 2014-08-04 2014-08-04 A kind of double-barrel transverse formula expansion chamber sprays denitration corner tube boiler Active CN105318307B (en)

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CN109140412A (en) * 2018-09-27 2019-01-04 哈尔滨四方锅炉有限公司 A kind of lower air inlet gas fuel corner tube boiler of list drum inclined type injection
CN109114537A (en) * 2018-09-27 2019-01-01 哈尔滨四方锅炉有限公司 Air inlet gas fuel corner tube boiler under a kind of single drum horizontal formula
CN109915809B (en) * 2019-03-10 2020-09-25 东阳市菊苏科技有限公司 Spray cleaning boiler with settling chamber

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CN101457981A (en) * 2007-12-14 2009-06-17 王森 Low discharging and high-energy effect novel industrial boiler
CN101949531A (en) * 2010-09-14 2011-01-19 天津宝成机械集团有限公司 Novel layer burning boiler
CN103212284A (en) * 2013-03-15 2013-07-24 孙琦 Method and device for combined removal of nitric oxide and sulfide in flue gas
CN204062980U (en) * 2014-08-04 2014-12-31 哈尔滨东方能源环境有限公司 A kind of double-barrel transverse formula expansion chamber spray denitration corner tube boiler

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3483598B2 (en) * 1993-09-06 2004-01-06 バブコック日立株式会社 Method and apparatus for cleaning finned heat transfer tubes
CN101457981A (en) * 2007-12-14 2009-06-17 王森 Low discharging and high-energy effect novel industrial boiler
CN101949531A (en) * 2010-09-14 2011-01-19 天津宝成机械集团有限公司 Novel layer burning boiler
CN103212284A (en) * 2013-03-15 2013-07-24 孙琦 Method and device for combined removal of nitric oxide and sulfide in flue gas
CN204062980U (en) * 2014-08-04 2014-12-31 哈尔滨东方能源环境有限公司 A kind of double-barrel transverse formula expansion chamber spray denitration corner tube boiler

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