CN102721076A - Boiler structure with de-nitrating device - Google Patents
Boiler structure with de-nitrating device Download PDFInfo
- Publication number
- CN102721076A CN102721076A CN2012102292024A CN201210229202A CN102721076A CN 102721076 A CN102721076 A CN 102721076A CN 2012102292024 A CN2012102292024 A CN 2012102292024A CN 201210229202 A CN201210229202 A CN 201210229202A CN 102721076 A CN102721076 A CN 102721076A
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- Prior art keywords
- boiler
- flue
- nitrating
- denitrification apparatus
- nox
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Chimneys And Flues (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention provides a boiler structure with a de-nitrating device. Due to the adoption of the structure, the whole de-nitrating system of a boiler is more reasonably and compactly arranged, meanwhile, the cost of the system is effectively reduced, the emission concentration of NOX is reduced, and the removing efficiency of NOX is improved. The boiler structure comprises a boiler body and the de-nitrating device, and is characterized in that a low NOX combustor is arranged in a hearth of the boiler body; the tail part of a flue provided with a coal-saving device in the boiler body is connected with the de-nitrating device; the de-nitrating device comprises a flow-equalizing flue and a catalytic reaction device; and an outlet of the flow-equalizing flue is communicated with the catalytic reaction device.
Description
Technical field
The present invention relates to the technical field of boiler structure, be specially the boiler structure that has denitrification apparatus.
Background technology
Existing boiler design and denitrating flue gas apart arrangement, ubiquity owing to boiler design with implement that denitrating flue gas separates that the boiler efficiency that causes is influenced, denitration technology disperses single, boiler heating surface and subsidiary engine repeats to transform, boiler integral body and flue are arranged unreasonable, drawbacks such as the denitration operation is uneconomical, the wasting of resources.Simultaneously; Because of having determined China to face, China's boiler oil national conditions complicated and changeable are different from other developed countries and a regional air contaminant treatment difficult problem in the world; And the NOx emission-reduction technology that each supplier provided is more single, NOx stove inner control and denitrating flue gas integrated level and chimeric degree are not high; Can not satisfy domestic market and environmental protection demand, be unfavorable for the long-term health development of domestic environmental protection industry.
Summary of the invention
To the problems referred to above, the invention provides the boiler structure that has denitrification apparatus, its make the whole denitrating system of boiler arrange more rationally, compacter, effectively reduce system cost simultaneously, reduce the NOX concentration of emission, improve the NOX removal efficiency.
The boiler structure that has denitrification apparatus; Its technical scheme is such: it comprises boiler body, denitrification apparatus; It is characterized in that: be provided with low-NOx combustor in the burner hearth of said boiler body; Said boiler body arranges that the flue afterbody of economizer connects said denitrification apparatus, and said denitrification apparatus comprises equal flow flue and catalyst reaction device, and the outlet of said equal flow flue is communicated with catalyst reaction device.
It is further characterized in that: be provided with ammonia-gas spraying device in the said equal flow flue, be furnished with the current-sharing grid between said equal flow flue and the catalyst reaction device.
Adopt structure of the present invention, taken all factors into consideration the low nitrogen burning technology of burning, in conjunction with the reasonable Arrangement of whole heating surface with the NOx control relation of influencing each other; Be provided with low-NOx combustor in the burner hearth of boiler body; Realize the generation of boiler control NOx from the source, guarantee flue gas the flowing evenly of equal flow flue, ammonia-gas spraying device and the denitrification apparatus of boiler tail, resistance is littler; Its make the whole denitrating system of boiler arrange more rationally, compacter; Effectively reduce system cost simultaneously, reduce the NOX concentration of emission, improve the NOX removal efficiency.
Description of drawings
Fig. 1 is a front view structural representation of the present invention.
The specific embodiment
See Fig. 1; Be provided with low-NOx combustor 3 in the burner hearth 2 of boiler body 1; Boiler body 1 arranges that the afterbody of the flue 5 of economizer 4 is connected with out of stock device, and denitrification apparatus comprises equal flow flue and catalyst reaction device, all is provided with ammonia-gas spraying device 7 in the flow flue 6; All the outlet of flow flue 6 is communicated with catalyst reaction device 8, all is furnished with current-sharing grid 9 between flow flue 6 and the catalyst reaction device 8.
Claims (2)
1. the boiler structure that has denitrification apparatus; It comprises boiler body, denitrification apparatus; It is characterized in that: be provided with low-NOx combustor in the burner hearth of said boiler body; Said boiler body arranges that the flue afterbody of economizer connects said denitrification apparatus, and said denitrification apparatus comprises equal flow flue and catalyst reaction device, and the outlet of said equal flow flue is communicated with catalyst reaction device.
2. the boiler structure that has denitrification apparatus according to claim 1 is characterized in that: be provided with ammonia-gas spraying device in the said equal flow flue, be furnished with the current-sharing grid between said equal flow flue and the catalyst reaction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102292024A CN102721076A (en) | 2012-07-04 | 2012-07-04 | Boiler structure with de-nitrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102292024A CN102721076A (en) | 2012-07-04 | 2012-07-04 | Boiler structure with de-nitrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102721076A true CN102721076A (en) | 2012-10-10 |
Family
ID=46946908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102292024A Pending CN102721076A (en) | 2012-07-04 | 2012-07-04 | Boiler structure with de-nitrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102721076A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937296A (en) * | 2012-11-20 | 2013-02-20 | 上海锅炉厂有限公司 | Boiler suitable for denitration device negative whole process load operation |
| CN107314367A (en) * | 2017-07-25 | 2017-11-03 | 无锡华光锅炉股份有限公司 | Pulverized-coal fired boiler arrangement structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2834679Y (en) * | 2005-11-21 | 2006-11-08 | 徐海涛 | Apparatus for decreasing ammonia escape rate from outlet of smoke gas denitration equipment |
| CN102350215A (en) * | 2011-07-15 | 2012-02-15 | 无锡华光新动力环保科技股份有限公司 | Multi-field uniform selective catalytic reduction (SCR) flue gas denitration apparatus |
| CN102430306A (en) * | 2011-09-14 | 2012-05-02 | 无锡华光新动力环保科技股份有限公司 | Pre-dedusting device used in SCR flue gas denitration for coal-fired boiler |
-
2012
- 2012-07-04 CN CN2012102292024A patent/CN102721076A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2834679Y (en) * | 2005-11-21 | 2006-11-08 | 徐海涛 | Apparatus for decreasing ammonia escape rate from outlet of smoke gas denitration equipment |
| CN102350215A (en) * | 2011-07-15 | 2012-02-15 | 无锡华光新动力环保科技股份有限公司 | Multi-field uniform selective catalytic reduction (SCR) flue gas denitration apparatus |
| CN102430306A (en) * | 2011-09-14 | 2012-05-02 | 无锡华光新动力环保科技股份有限公司 | Pre-dedusting device used in SCR flue gas denitration for coal-fired boiler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937296A (en) * | 2012-11-20 | 2013-02-20 | 上海锅炉厂有限公司 | Boiler suitable for denitration device negative whole process load operation |
| CN102937296B (en) * | 2012-11-20 | 2015-04-08 | 上海锅炉厂有限公司 | Boiler suitable for denitration device negative whole process load operation |
| CN107314367A (en) * | 2017-07-25 | 2017-11-03 | 无锡华光锅炉股份有限公司 | Pulverized-coal fired boiler arrangement structure |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121010 |