CN101988695B - Boiler for combusting combustible gases containing corrosive materials - Google Patents
Boiler for combusting combustible gases containing corrosive materials Download PDFInfo
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- CN101988695B CN101988695B CN2010105340105A CN201010534010A CN101988695B CN 101988695 B CN101988695 B CN 101988695B CN 2010105340105 A CN2010105340105 A CN 2010105340105A CN 201010534010 A CN201010534010 A CN 201010534010A CN 101988695 B CN101988695 B CN 101988695B
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- corrosive substance
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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 kinds of 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 basically in discharging time point sky lamp burn.
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 objective of the invention is to realize like this: a kind of corrosive substance gas fuel burning boiler that contains; Comprise combustion chamber, airscoop shroud, air feed spray gun, drum, air scoop and flue gas air channel, said combustion chamber is made up of the membrane wall heat exchanger, and this membrane wall heat exchanger is made up of membrane wall, upper header and lower collecting box; Airscoop shroud links to each other with said lower collecting box bottom; The air feed spray gun is arranged in the airscoop shroud, and said drum water out inserts said lower collecting box through a down-comer, and the upper header steam (vapor) outlet inserts drum through a steam guiding tube; The air scoop import links to each other with said upper header top; Be characterized in: said boiler has additional a protection gas air channel, and this protection gas air channel links to each other with the air scoop outlet, and insert in the protection gas air channel lower end, said 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, and the flue gas air channel is by the anticorrosive property made; 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 through 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:
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.Can find out that by Fig. 1 and Fig. 2 the present invention contains corrosive substance gas fuel burning boiler, mainly form by 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 up of the membrane wall heat exchanger, and this membrane wall heat exchanger is made up 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.Said drum 1 water out inserts said lower collecting box 11 through a down-comer 16; Upper header 8 steam (vapor) outlets insert drum 1 through a steam guiding tube 17; Air scoop 6 imports link to each other with said 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 said protection gas air channel 4, a superheater 5 be set; The steam (vapor) outlet of said drum 1 inserts this superheater 5 through 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 said 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 said flue gas air channel 3 is preferably processed by anticorrosive.
Operation principle:
At first give membrane wall heat exchanger topped up with water, and keep drum 1 water level in the center through feed pipe 12.Through 14 pairs of combustion chambers 10 of air feed spray gun fuel gas is provided through Gas Pipe 13; Ignited flammable gas burns it in the combustion chamber; Air is combustion-supporting through airscoop shroud 15 entering combustion chambers; Fuel gas after the burning gets into 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 gets into protection gas air channel 4 under the attraction of protection air-introduced machine.According to the fuel gas flow; Adjustment flue gas and protection gas air quantity; Guarantee that fuel gas contains the corrosive substance back flue gas that fully burns and gets into the flue gas air channel; Making does not have too much excess air in the flue gas air channel, reduce heat-energy losses as far as possible, and guarantees 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 great amount of heat in combustion chambers burn; These heats are absorbed by the membrane wall heat exchanger through radiation heat transfer, and the water in the membrane wall 9 is vaporized because of constantly absorbing heat at last, forms 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, gets into upper header 8, gets into drum 1 through 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 getting into drum 1; Steam gets into further to absorb heat in the superheater 5 through steam pipe 2 and becomes superheated steam, and superheated steam is seen off through 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); Said combustion chamber (10) is made up of the membrane wall heat exchanger; This membrane wall heat exchanger is made up of membrane wall (9), upper header (8) and lower collecting box (11), and airscoop shroud (15) links to each other with said lower collecting box (11) bottom, and air feed spray gun (14) is arranged in the airscoop shroud (15); Said drum (1) water out inserts said lower collecting box (11) through a down-comer (16); Upper header (8) steam (vapor) outlet inserts drum (1) through a steam guiding tube (17), and air scoop (6) import links to each other with said upper header (8) top, it is characterized in that: said 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, said 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 said protection gas air channel (4); The steam (vapor) outlet of said drum (1) inserts this superheater (5) through 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 said 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: said 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: said 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: said flue gas air channel (3) is processed 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 CN101988695A (en) | 2011-03-23 |
| CN101988695B true CN101988695B (en) | 2012-04-11 |
Family
ID=43745370
Family Applications (1)
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101988695B (en) |
Family Cites Families (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 |
| US5809913A (en) * | 1996-10-15 | 1998-09-22 | Cinergy Technology, Inc. | 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 |
-
2010
- 2010-11-08 CN CN2010105340105A patent/CN101988695B/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101988695A (en) | 2011-03-23 |
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20141108 |
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| EXPY | Termination of patent right or utility model |