CN101988695A - Boiler for combusting combustible gases containing corrosive materials - Google Patents
Boiler for combusting combustible gases containing corrosive materials Download PDFInfo
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- CN101988695A CN101988695A CN 201010534010 CN201010534010A CN101988695A CN 101988695 A CN101988695 A CN 101988695A CN 201010534010 CN201010534010 CN 201010534010 CN 201010534010 A CN201010534010 A CN 201010534010A CN 101988695 A CN101988695 A CN 101988695A
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Abstract
The invention relates to a boiler for combusting combustible gases containing corrosive materials, which recovers heat energy by boiler combustion. The boiler comprises a combustion chamber (10), an intake cover (15),a gas supply spray gun (14), a steam drum (1), a smoke guide cover (6) and a smoke duct (3), wherein the combustion chamber (10) is composed of a membrane type wall heat exchanger consisting of a membrane type wall (9), an upper header (8) and a lower header (11); the intake cover (15) is connected with the bottom of the lower header (11); the gas spray gun (14) is arranged in the intake cover (15); the water outlet of the steam drum (1) is connected to the lower header (11) via a down pipe (16), and the steam outlet of the upper header (8) is connected to the steam drum (1) via a steam lead pipe (17); the inlet of the smoke guide cover (6) is connected with the top of the upper header (8), and the outlet thereof is connected with a protection gas air flue (4) which is additionally arranged in the boiler; and the lower end of the smoke duct (3) is inserted in the protection gas air flue (4). In the invention, the heat exchange surface of the boiler is effectively isolated from smoke containing corrosive materials by a protection gas, thus preventing the heat exchanger from being corroded by the corrosive materials.
Description
Technical field
The present invention relates to a kind of burning boiler.Utilize boiler combustion to reclaim heat energy.Belong to the burning boiler technical field.
Background technology
Contain materials such as fluorine, sulphur, phosphorus, arsenic in the fuel gas that has now, those materials when burning at a certain temperature can the strong corrosion heat exchanger, equipment such as air channel.Also do not find certain material now, existing good thermal conductivity can guarantee the corrosive substance non-perishable material again when high temperature.For example when producing yellow phosphorus, produce and contain several corrosive substances such as fluorine, sulphur, phosphorus, arsenic in a large amount of yellow phosphoric tail gas CO gas, so the yellow phosphoric tail gas combustion heat energy can't well be reclaimed and utilize, present various yellow phosphoric tail gas burning boilers all can't guarantee safe operation.The enterprise that has now carries out purified treatment earlier to the corrosive substance that contains in the fuel gas before burning, utilize boiler combustion to reclaim heat energy again after reaching combustion standard, but do not obtain practical application because its cost high technology is complicated, present yellow phosphoric tail gas CO burns at discharging time point sky lamp substantially.
Summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of safe and reliable, can burn and contain the burning boiler of corrosive substance fuel gas.
The object of the present invention is achieved like this: a kind of corrosive substance gas fuel burning boiler that contains; comprise the combustion chamber; airscoop shroud; the air feed spray gun; drum; air scoop and flue gas air channel; described combustion chamber is made of the membrane wall heat exchanger; this membrane wall heat exchanger is by membrane wall; upper header and lower collecting box constitute; airscoop shroud links to each other with described lower collecting box bottom; the air feed spray gun is arranged in the airscoop shroud; described drum water out inserts described lower collecting box by a down-comer; the upper header steam (vapor) outlet inserts drum by a steam guiding tube; the air scoop import links to each other with described upper header top; be characterized in: described boiler has additional a protection gas air channel; this protection gas air channel links to each other with the air scoop outlet, and insert in the protection gas air channel lower end, described flue gas air channel.
The invention has the beneficial effects as follows:
Contain corrosive substance in the fuel gas in the burner central burner, the flue gas that contains corrosive substance and the heat exchanger that produce when utilizing excessive air burning are kept apart, guarantee the contact of heat exchanger discord corrosive substance, thereby guarantee that heat exchanger do not pass to heat exchanger to heat the corrosion of being corroded property material the time, the flue gas that contains corrosive substance is discharged from flue gas air channel, stove center, the flue gas air channel is made by the anticorrosive property material, thereby guaranteed boiler can long-term safety reliability service, and reached contain in the fuel gas corrosive goods mass-energy when burning heat recovery and utilization; Protection gas is discharged from protection gas wind passage; in protection gas air channel, heat reclaim unit is installed simultaneously; heat is further recycled; improved the heat exchanger effectiveness of boiler; the introducing of protective gas has guaranteed effective isolation of corrosive substance in heat exchanger and the flue gas; guarantee that heat exchanger is not corroded, therefore containing corrosive substance gas combustion boiler has good security reliability.
To sum up, boiler heat-transfer surface of the present invention has carried out effective isolation by protection gas and the flue gas that contains corrosive substance, has avoided the corrosion of corrosive substance heat exchanging device, has solved and has contained the irretrievable difficult problem of corrosive substance calory burning in the fuel gas.
Description of drawings
Fig. 1 contains the structural representation of corrosive substance gas fuel burning boiler for the present invention.
Fig. 2 is the A-A cut-away view of Fig. 1.
Reference numeral among the figure:
Drum 1, steam pipe 2, flue gas air channel 3, protection gas air channel 4, superheater 5, air scoop 6, main steam pipe 7, upper header 8, membrane wall 9, combustion chamber 10, lower collecting box 11, feed pipe 12, Gas Pipe 13, air feed spray gun 14(annular), airscoop shroud 15, down-comer 16, steam guiding tube 17.
The specific embodiment
Referring to Fig. 1 and Fig. 2, Fig. 1 contains the structural representation of corrosive substance gas fuel burning boiler for the present invention.Fig. 2 is the A-A cut-away view of Fig. 1.By Fig. 1 and Fig. 2 as can be seen, the present invention contains corrosive substance gas fuel burning boiler, mainly is made up of combustion chamber 10, airscoop shroud 15, air feed spray gun 14, air scoop 6, drum 1, protection gas air channel 4 and flue gas air channel 3.Combustion chamber 10 is made of the membrane wall heat exchanger, and this membrane wall heat exchanger is made of membrane wall 9, upper header 8 and lower collecting box 11, and upper header 8 and lower collecting box 11 are fixedly connected on the top and the bottom of membrane wall 9 respectively.Lower collecting box 11 links to each other with a feed pipe 12.Airscoop shroud 15 links to each other with lower collecting box 11 bottoms, and air feed spray gun 14 is arranged in the airscoop shroud 15, and air feed spray gun 14 links to each other with a Gas Pipe 13.Described drum 1 water out inserts described lower collecting box 11 by a down-comer 16; upper header 8 steam (vapor) outlets insert drum 1 by a steam guiding tube 17; air scoop 6 imports link to each other with described upper header 8 tops, and air scoop 6 outlets link to each other with protection gas air channel 4, and insert in the protection gas air channel 43 lower ends, flue gas air channel.
The present invention contains corrosive substance gas fuel burning boiler; can also in described protection gas air channel 4, a superheater 5 be set; the steam (vapor) outlet of described drum 1 inserts this superheater 5 by a steam pipe 2, and the superheated steam outlet of superheater 5 links to each other with a main steam pipe 7.
The present invention contains corrosive substance gas fuel burning boiler, and the center line in described air feed spray gun 14, combustion chamber 10, air scoop 6 and flue gas air channel 3 all is in the same center line.
The present invention contains corrosive substance gas fuel burning boiler, and described flue gas air channel 3 is preferably made by anticorrosive.
Operation principle:
At first give membrane wall heat exchanger topped up with water, and keep drum 1 water level in the center by feed pipe 12.Provide fuel gas by Gas Pipe 13 through 14 pairs of combustion chambers 10 of air feed spray gun, ignited flammable gas burns it in the combustion chamber, it is combustion-supporting that air enters the combustion chamber by airscoop shroud 15, fuel gas after the burning enters flue gas air channel 3 under the attraction of flue gas blower fan, enter atmosphere after discharging that flue gas is treated and meeting national standard limit of smog release.Protection gas enters protection gas air channel 4 under the attraction of protection air-introduced machine.According to the fuel gas flow; adjust flue gas and protection gas air quantity; guarantee fuel gas contain corrosive substance fully burn the back flue gas enter the flue gas air channel; make too much excess air is not arranged in the flue gas air channel; reduce heat-energy losses as far as possible, and guarantee in the protection gas that the corrosive substance heat exchanger that do not exceed standard is not corroded.Through superheater 5 heat exchange, the protection gas after the cooling enters atmosphere to protection gas in protection gas air channel.Fuel gas is emitted a large amount of heats in combustion chambers burn, these heats are absorbed by the membrane wall heat exchanger by radiation heat transfer, water in the membrane wall 9 is vaporized at last because of constantly absorbing heat, form steam water interface, its density is less than on the same horizontal plane density of water in the down-comer 16, the steam water interface of water constantly rises in the membrane wall 9, enters upper header 8, enters drum 1 by steam guiding tube 17 again.At this moment water-down-comer 16-lower collecting box 11-membrane wall 9-upper header 8-steam guiding tube 17-the drum in the drum 11 forms the circulation of nature water, steam water interface carries out carbonated drink separation after entering drum 1, steam enters further to absorb heat in the superheater 5 by steam pipe 2 and becomes superheated steam, and superheated steam is sent by main steam pipe 7 and carried out heat supply generating utilization.
Claims (6)
1. one kind contains corrosive substance gas fuel burning boiler; comprise combustion chamber (10); airscoop shroud (15); air feed spray gun (14); drum (1); air scoop (6) and flue gas air channel (3); described combustion chamber (10) is made of the membrane wall heat exchanger; this membrane wall heat exchanger is by membrane wall (9); upper header (8) and lower collecting box (11) constitute; airscoop shroud (15) links to each other with described lower collecting box (11) bottom; air feed spray gun (14) is arranged in the airscoop shroud (15); described drum (1) water out inserts described lower collecting box (11) by a down-comer (16); upper header (8) steam (vapor) outlet inserts drum (1) by a steam guiding tube (17); air scoop (6) import links to each other with described upper header (8) top; it is characterized in that: described boiler has additional a protection gas air channel (4); this protection gas air channel (4) links to each other with air scoop (6) outlet, and insert in the protection gas air channel (4) lower end, described flue gas air channel (3).
2. a kind of corrosive substance gas fuel burning boiler that contains according to claim 1; it is characterized in that: be provided with a superheater (5) in the described protection gas air channel (4); the steam (vapor) outlet of described drum (1) inserts this superheater (5) by a steam pipe (2), and the superheated steam outlet of superheater (5) links to each other with a main steam pipe (7).
3. a kind of corrosive substance gas fuel burning boiler that contains according to claim 1 and 2 is characterized in that: the center line of described air feed spray gun (14), combustion chamber (10), air scoop (6) and flue gas air channel (3) all is in the same center line.
4. a kind of corrosive substance gas fuel burning boiler that contains according to claim 1 and 2, it is characterized in that: described air feed spray gun (14) is structure ringwise.
5. a kind of corrosive substance gas fuel burning boiler that contains according to claim 1 and 2, it is characterized in that: described lower collecting box (11) links to each other with a feed pipe (12), and air feed spray gun (14) links to each other with a Gas Pipe (13).
6. a kind of corrosive substance gas fuel burning boiler that contains according to claim 1 and 2, it is characterized in that: described flue gas air channel (3) is made by anticorrosive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105340105A CN101988695B (en) | 2010-11-08 | 2010-11-08 | Boiler for combusting combustible gases containing corrosive materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105340105A CN101988695B (en) | 2010-11-08 | 2010-11-08 | Boiler for combusting combustible gases containing corrosive materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101988695A true CN101988695A (en) | 2011-03-23 |
| CN101988695B CN101988695B (en) | 2012-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105340105A Expired - Fee Related CN101988695B (en) | 2010-11-08 | 2010-11-08 | Boiler for combusting combustible gases containing corrosive materials |
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| Country | Link |
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| CN (1) | CN101988695B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04121515A (en) * | 1990-09-13 | 1992-04-22 | Mitsubishi Heavy Ind Ltd | Furnace inner wall surface protection air feeding device |
| CN1240021A (en) * | 1996-10-15 | 1999-12-29 | 西纳吉技术有限公司 | Corrosion protection for utility boiler side walls |
| JP2008170040A (en) * | 2007-01-10 | 2008-07-24 | Babcock Hitachi Kk | Pulverized coal burning boiler and pulverized coal combustion method of pulverized coal burning boiler |
| CN201526346U (en) * | 2009-11-12 | 2010-07-14 | 王志凯 | Yellow phosphorous combustion heat recycling device |
| CN101988696A (en) * | 2010-11-30 | 2011-03-23 | 王志凯 | Yellow phosphorus tail gas combustion boiler |
| CN201858631U (en) * | 2010-11-08 | 2011-06-08 | 王志凯 | Combustion boiler of combustible gas containing corrosive material |
-
2010
- 2010-11-08 CN CN2010105340105A patent/CN101988695B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04121515A (en) * | 1990-09-13 | 1992-04-22 | Mitsubishi Heavy Ind Ltd | Furnace inner wall surface protection air feeding device |
| CN1240021A (en) * | 1996-10-15 | 1999-12-29 | 西纳吉技术有限公司 | Corrosion protection for utility boiler side walls |
| JP2008170040A (en) * | 2007-01-10 | 2008-07-24 | Babcock Hitachi Kk | Pulverized coal burning boiler and pulverized coal combustion method of pulverized coal burning boiler |
| CN201526346U (en) * | 2009-11-12 | 2010-07-14 | 王志凯 | Yellow phosphorous combustion heat recycling device |
| CN201858631U (en) * | 2010-11-08 | 2011-06-08 | 王志凯 | Combustion boiler of combustible gas containing corrosive material |
| CN101988696A (en) * | 2010-11-30 | 2011-03-23 | 王志凯 | Yellow phosphorus tail gas combustion boiler |
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| Publication number | Publication date |
|---|---|
| CN101988695B (en) | 2012-04-11 |
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