CN204421021U - A kind of being used for contains N 2the Ω shape thermal oxidation device of O waste gas - Google Patents
A kind of being used for contains N 2the Ω shape thermal oxidation device of O waste gas Download PDFInfo
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- CN204421021U CN204421021U CN201520057241.XU CN201520057241U CN204421021U CN 204421021 U CN204421021 U CN 204421021U CN 201520057241 U CN201520057241 U CN 201520057241U CN 204421021 U CN204421021 U CN 204421021U
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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
Abstract
The utility model relates to a kind of for containing N
2the Ω shape thermal oxidation device of O waste gas, this device comprises Ω shape shell, burner, combustion chamber, high-temperature economizer, air preheater, SCR denitration room and low-level (stack-gas) economizer is in series with from the inlet to the outlet successively in described Ω shape shell, be provided with ammonia water spray gun between combustion chamber and high-temperature economizer, between air preheater and SCR denitration room, be provided with guiding device and ammonia-gas spraying device; Burner is connected with the air outlet slit of air preheater, and the air intake of air preheater is connected with pressure fan; Ammonia water spray gun and ammonia-gas spraying device export with the ammoniacal liquor of ammoniacal liquor supply pump and are connected, and ammonia inlet is connected with tank used for storing ammonia; The soft water entrance of low-level (stack-gas) economizer is connected with softening water pump, and soft water outlet is connected with the soft water entrance of high-temperature economizer, and the exhanst gas outlet of low-level (stack-gas) economizer is connected with the entrance of air-introduced machine, and the outlet of air-introduced machine is connected with chimney.The utility model has the advantages such as structure is simple, volume is little, exhaust treatment efficiency is high, energy-conserving and environment-protective.
Description
Technical field
The utility model relates to technical field of waste gas treatment, is specifically related to a kind of for containing N
2the Ω shape thermal oxidation device of O waste gas.
Background technology
Containing N
2o waste gas has following Drainage feature: 1) N
2the concentration of O is high, simultaneously containing other imflammable gas, does not meet the standard of airborne release; 2) conventional incinerator or flare system can not realize N
2o and organic complete harmless treatment.At present domestic developed and the process adopted containing N
2o waste gas method has rectification method, extraction, bioanalysis, chemical oxidization method etc.But these methods also exist the factors such as investment is large, operational administrative difficulty is large, Spawn incubation is difficult, thus limit promotion and application.
Owing to containing N
2o waste gas has certain calorific value, adopts thermal oxidation technique process to be a kind of simple, efficient, feasible processing method.It is recoverable partial heat, reduction processing cost both, contamination transform can be made again to be harmless object, to subtract appearance to greatest extent, and avoid causing secondary pollution, reach the dual purpose of comprehensive utilization of waste materials and protection of the environment.And thermal oxidation method is to containing N
2the removal efficiency of O waste gas is totally higher than absorption and absorption method, just progressively becomes containing N
2the Main Means of O exhaust-gas treatment.
But more existing thermal oxide equipment, exist that volume is large, energy consumption is high, recuperation of heat and the problem such as exhaust treatment efficiency is low; Therefore, research and develop that a kind of structure is simple, exhaust treatment efficiency is high, the thermal oxidation device of energy-conserving and environment-protective becomes a problem demanding prompt solution.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides a kind of for containing N
2the Ω shape thermal oxidation device of O waste gas.
This device comprises Ω shape shell, burner, combustion chamber, high-temperature economizer, air preheater, SCR denitration room and low-level (stack-gas) economizer is in series with from the inlet to the outlet successively in described Ω shape shell, be provided with ammonia water spray gun between described combustion chamber and high-temperature economizer, between described air preheater and SCR denitration room, be provided with guiding device and ammonia-gas spraying device; Described burner is connected with the air outlet slit of air preheater, and the air intake of described air preheater is connected with pressure fan; Described ammonia water spray gun and ammonia-gas spraying device export with the ammoniacal liquor of ammoniacal liquor supply pump and are connected, and the ammonia inlet of ammoniacal liquor supply pump is connected with tank used for storing ammonia; The soft water entrance of described low-level (stack-gas) economizer is connected with softening water pump, and the soft water outlet of low-level (stack-gas) economizer is connected with the soft water entrance of high-temperature economizer, and the exhanst gas outlet of low-level (stack-gas) economizer is connected with the entrance of air-introduced machine, and the outlet of air-introduced machine is connected with chimney.
Preferably, described combustion chamber is adiabatic furnace, is conducive to keeping chamber temperature, and react fully generation, and reduce heat leakage.Containing N
2the time of staying of O waste gas in combustion chamber is 1 ~ 3s, guarantees N in waste gas
2the complete reduction decomposition of O is N
2and NO
x, the complete after-flame of organic matter.
Preferably, described combustion chamber device has heat storage, improves the utilization rate of fuel to greatest extent, and improves reaction efficiency.
In the utility model, the application of Ω shape shell, makes compact overall structure, makes full use of the confined space, serves the object saved floor occupying area.The arrangement of high-temperature economizer and air preheater, on the one hand, the high-temperature flue gas of discharging in combustion chamber is reduced to 300 ~ 420 DEG C from 850 ~ 1200 DEG C, fully meet the reaction temperature needed for SCR denitration reaction, on the other hand, air preheater by air heat to 150 DEG C ~ 300 DEG C, can improve in combustion chamber the temperature using air, be conducive to catching fire and smooth combustion, reduce non-complete combustion of fuel loss; Low-level (stack-gas) economizer absorbs the heat of low-temperature flue gas further, reduces the exhaust gas temperature of flue gas, reduces thermal loss, reclaims more inferior energy further, has carried out rational energy grade and has distributed; Soft water can be heated to 104 DEG C by the conjunctive use of high and low temperature economizer, for other operations, effectively utilizes the flue gas heat reclaimed, reduces energy ezpenditure.
The beneficial effects of the utility model are:
(1) will containing N
2o waste gas burns completely, harmless treatment, reduces greenhouse effects, simultaneously accessory substance NO
xqualified discharge, reaches 100mg/Nm
3or lower standard;
(2) energy regenerating is utilized, the hot water of about 104 DEG C or steam can be produced for factory;
(3) energy-conserving and environment-protective, cold air sends into burner hearth through preheating, reduces the consumption of fuel;
(4) compact conformation, floor space is little, small investment, and operating cost is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model Ω shape thermal oxidation device.
Number in the figure:
1-Ω shape shell; 2-burner; 3-combustion chamber; 4-ammonia water spray gun; 5-high-temperature economizer; 6-air preheater; 7-guiding device; 8-ammonia-gas spraying device; 9-SCR denitration chamber; 10-low-level (stack-gas) economizer; 11-pressure fan; 12-tank used for storing ammonia; 13-ammoniacal liquor supply pump; 14-softens water pump; 15-air-introduced machine; 16-chimney.
Detailed description of the invention
The utility model provides a kind of for containing N
2the Ω shape thermal oxidation device of O waste gas, is described further the utility model below in conjunction with accompanying drawing.As shown in Figure 1, this thermal oxidation device comprises Ω shape shell 1, burner 2, combustion chamber 3, high-temperature economizer 5, air preheater 6, SCR denitration room 9 and low-level (stack-gas) economizer 10 is in series with from the inlet to the outlet successively in Ω shape shell 1, be provided with ammonia water spray gun 4 between combustion chamber 3 and high-temperature economizer 5, between air preheater 6 and SCR denitration room 9, be provided with guiding device 7 and ammonia-gas spraying device 8; Burner 2 is connected with the air outlet slit of air preheater 6, and the air intake of air preheater 6 is connected with pressure fan 11; Ammonia water spray gun 4 and ammonia-gas spraying device 8 export with the ammoniacal liquor of ammoniacal liquor supply pump 13 and are connected, and the ammonia inlet of ammoniacal liquor supply pump 13 is connected with tank used for storing ammonia 12; The soft water entrance of low-level (stack-gas) economizer 10 is connected with softening water pump 14, the soft water outlet of low-level (stack-gas) economizer 10 is connected with the soft water entrance of high-temperature economizer 5, the exhanst gas outlet of low-level (stack-gas) economizer 10 is connected with the entrance of air-introduced machine 15, and the outlet of air-introduced machine 15 is connected with chimney 16.
In the present embodiment, burner 2 adopts unique waste gas and the streamlined fuel nozzle project organization mixed of air draught, is input to by waste gas in air draught, and form the controlled flame characteristics of expection, the zone of flame controllably launches in the radial and axial directions; Combustion chamber 3 is horizontal cylinder formula; High-temperature economizer 5, low-level (stack-gas) economizer 10 are cold face temperature etc., and flue gas walks shell side, and soft water walks tube side; Air preheater 6 is vertical air preheater, and flue gas walks shell side, and air walks tube side.
Concrete operations are as follows: first, and waste gas and combustion-supporting combustion gas are passed into burner 2, and air sends into air preheater 6 and high-temperature flue gas heat exchange by pressure fan 11, then enter burner 2 participation burning, and the burning of waste gas completes further in combustion chamber 3; In the ammoniacal liquor that the high-temperature flue gas generated sprays in ammonia water spray gun 4 by and tentatively reduced, then enter high-temperature economizer 5 and soft water generation heat exchange, then enter air preheater 6 and air heat exchange again, temperature is reduced to 300 ~ 420 DEG C; Flue gas after cooling, under the effect of guiding device 7, is entered SCR denitration room 9 after being reduced, fully react under the effect of SCR catalyst by ammonia-gas spraying device 8; Reacted flue gas passes into the soft water heat exchange that low-level (stack-gas) economizer 10 supplies with softening water pump 14 further again, obtains low-temperature flue gas, under the guiding of air-introduced machine 15, enters air by chimney 16.
Concrete flue gas flow is: 3 → high-temperature economizer, 5 → air preheater, 6 → SCR denitration room, combustion chamber, 9 → low-level (stack-gas) economizer, 10 → air-introduced machine, 15 → chimney 16.Concrete air flow process is: pressure fan 11 → air preheater 6 → burner 2.Concrete soft water flow process is: softening water pump 14 → low-level (stack-gas) economizer 10 → high-temperature economizer 5.
Above content is only to detailed description of the invention example of the present utility model and explanation; what should indicate is; according to conception of the present utility model above-mentioned embodiment modified or supplement or adopt similar mode to substitute; its function produced do not exceed that description and accompanying drawing contain yet spiritual time, all should within protection domain of the present utility model.
Claims (3)
1. one kind for containing N
2the Ω shape thermal oxidation device of O waste gas, it is characterized in that: described device comprises Ω shape shell, burner, combustion chamber, high-temperature economizer, air preheater, SCR denitration room and low-level (stack-gas) economizer is in series with from the inlet to the outlet successively in described Ω shape shell, be provided with ammonia water spray gun between described combustion chamber and high-temperature economizer, between described air preheater and SCR denitration room, be provided with guiding device and ammonia-gas spraying device; Described burner is connected with the air outlet slit of air preheater, and the air intake of described air preheater is connected with pressure fan; Described ammonia water spray gun and ammonia-gas spraying device export with the ammoniacal liquor of ammoniacal liquor supply pump and are connected, and the ammonia inlet of ammoniacal liquor supply pump is connected with tank used for storing ammonia; The soft water entrance of described low-level (stack-gas) economizer is connected with softening water pump, and the soft water outlet of low-level (stack-gas) economizer is connected with the soft water entrance of high-temperature economizer, and the exhanst gas outlet of low-level (stack-gas) economizer is connected with the entrance of air-introduced machine, and the outlet of air-introduced machine is connected with chimney.
2. one according to claim 1 is used for containing N
2the Ω shape thermal oxidation device of O waste gas, is characterized in that: described combustion chamber is adiabatic furnace.
3. one according to claim 1 is used for containing N
2the Ω shape thermal oxidation device of O waste gas, is characterized in that: described combustion chamber device has heat storage.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520057241.XU CN204421021U (en) | 2015-01-27 | 2015-01-27 | A kind of being used for contains N 2the Ω shape thermal oxidation device of O waste gas |
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| CN201520057241.XU CN204421021U (en) | 2015-01-27 | 2015-01-27 | A kind of being used for contains N 2the Ω shape thermal oxidation device of O waste gas |
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| CN204421021U true CN204421021U (en) | 2015-06-24 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107008144A (en) * | 2017-05-23 | 2017-08-04 | 国电科学技术研究院 | A kind of device and denitration method for flue gas for realizing SCR denitrating flue gas multistage spray ammonia |
| CN107559823A (en) * | 2017-09-21 | 2018-01-09 | 哈尔滨工业大学 | A kind of denitration in the stove and the low nitrogen combustion apparatus of two-stage over-fire wind arrangement |
| CN107606606A (en) * | 2017-09-21 | 2018-01-19 | 哈尔滨工业大学 | Powder " Ω " shape industrial coal powder boiler is given at a kind of center using flue gas recirculation |
| CN107606602A (en) * | 2017-09-21 | 2018-01-19 | 哈尔滨工业大学 | A kind of horizontal boiler of SNCR and OFA interlaced arrangements |
| CN108644789A (en) * | 2018-05-15 | 2018-10-12 | 大连航化能源装备有限公司 | A kind of coal hydrogen manufacturing decarburization resolution gas incinerating and treating device |
| CN109059012A (en) * | 2018-08-16 | 2018-12-21 | 天津大学 | Ground flare closed type combusting device vent gas denitrating system and method |
| CN110057203A (en) * | 2019-05-14 | 2019-07-26 | 安徽轩鸣新材料有限公司 | The manufacturing smoke processing system of rock wool |
| CN110594762A (en) * | 2019-09-04 | 2019-12-20 | 山西亚乐士环保技术股份有限公司 | Energy-saving low-temperature methanol washing tail gas treatment device |
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2015
- 2015-01-27 CN CN201520057241.XU patent/CN204421021U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107008144A (en) * | 2017-05-23 | 2017-08-04 | 国电科学技术研究院 | A kind of device and denitration method for flue gas for realizing SCR denitrating flue gas multistage spray ammonia |
| CN107559823A (en) * | 2017-09-21 | 2018-01-09 | 哈尔滨工业大学 | A kind of denitration in the stove and the low nitrogen combustion apparatus of two-stage over-fire wind arrangement |
| CN107606606A (en) * | 2017-09-21 | 2018-01-19 | 哈尔滨工业大学 | Powder " Ω " shape industrial coal powder boiler is given at a kind of center using flue gas recirculation |
| CN107606602A (en) * | 2017-09-21 | 2018-01-19 | 哈尔滨工业大学 | A kind of horizontal boiler of SNCR and OFA interlaced arrangements |
| CN107606602B (en) * | 2017-09-21 | 2019-04-16 | 哈尔滨工业大学 | A kind of horizontal boiler of SNCR and OFA interlaced arrangement |
| CN107606606B (en) * | 2017-09-21 | 2019-12-31 | 哈尔滨工业大学 | Central powder feeding omega-shaped industrial pulverized coal boiler adopting flue gas recirculation |
| CN108644789A (en) * | 2018-05-15 | 2018-10-12 | 大连航化能源装备有限公司 | A kind of coal hydrogen manufacturing decarburization resolution gas incinerating and treating device |
| CN109059012A (en) * | 2018-08-16 | 2018-12-21 | 天津大学 | Ground flare closed type combusting device vent gas denitrating system and method |
| CN109059012B (en) * | 2018-08-16 | 2023-10-10 | 天津大学 | Ground torch closed combustor exhaust gas denitration system and method |
| CN110057203A (en) * | 2019-05-14 | 2019-07-26 | 安徽轩鸣新材料有限公司 | The manufacturing smoke processing system of rock wool |
| CN110594762A (en) * | 2019-09-04 | 2019-12-20 | 山西亚乐士环保技术股份有限公司 | Energy-saving low-temperature methanol washing tail gas treatment device |
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