CN105042572A - Boiler capable of effectively lowering nitrogen oxide emission - Google Patents
Boiler capable of effectively lowering nitrogen oxide emission Download PDFInfo
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- CN105042572A CN105042572A CN201510544474.7A CN201510544474A CN105042572A CN 105042572 A CN105042572 A CN 105042572A CN 201510544474 A CN201510544474 A CN 201510544474A CN 105042572 A CN105042572 A CN 105042572A
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- boiler
- convection section
- hearth
- barrel
- nitrogen oxide
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Abstract
The invention relates to a double-boiler-barrel boiler burning biomass, and in particular to a boiler capable of effectively lowering nitrogen oxide emission. The double-boiler-barrel boiler comprises an upper boiler barrel, a lower boiler barrel, a hearth and a convection section. An outlet of the hearth is directly connected with the convection section. The convection section is provided with at least two flue partition walls to form at least two flue gas return strokes. According to the technical scheme, no fire barrier is arranged, and a combustion ash chamber is omitted, so that the hearth capacity is increased; in this way, fuel is fully combusted, and the utilization rate of heat radiation generated by fuel combustion in the hearth is higher; the temperature of a hearth outlet and the temperature of exhaust smoke are lowered accordingly, and nitrogen oxide emission is reduced.
Description
Technical field
The present invention relates to a kind of double-drum boiler of biomass-burning.
Background technology
Existing pair of drum steam boiler all comprises burner hearth, burning chamber, convection section, and be wherein provided with firebreak between burner hearth and burning chamber, burning chamber is directly connected with convection section.The shortcoming of the boiler of this structure is: furnace exit temperature is high, high fume temperature, and the discharge capacity of nitrogen oxide is also high, can not reach better environmental requirement.
Summary of the invention
The object of the invention is to provide a kind of double-drum boiler that effectively can reduce discharged nitrous oxides to overcome above-mentioned deficiency.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of boiler that effectively can reduce discharged nitrous oxides, comprise upper drum, lower drum, burner hearth, convection section, described furnace outlet is directly connected with convection section, described convection section is provided with at least twice mid-feather, forms at least two flue gas backhauls.
In technique scheme, owing to not establishing firebreak, eliminate burning chamber, thus just increase combustion space, fuel so just can be made to be fully burned, the utilization rate of the heat radiation that fuel combustion produces in burner hearth is higher, and furnace exit temperature and exhaust gas temperature must correspondingly reduce, and the discharge of nitrogen oxide will reduce.
In one embodiment, described convection section is provided with three road mid-feathers, forms three flue gas backhauls.When convection heating surface amasss constant, by increasing a flue gas backhaul, just furnace exit temperature and exhaust gas temperature can be reduced further.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the plan structure schematic diagram of Fig. 1.
Detailed description of the invention
A kind of boiler that effectively can reduce discharged nitrous oxides as shown in Figure 1, 2, comprise upper drum 1, lower drum 2, burner hearth 3, convection section 4, the outlet of described burner hearth 3 is directly connected with convection section 4, and described convection section 4 is provided with twice mid-feather 41, forms two flue gas backhauls.Also according to actual needs, three road mid-feathers 41 can be set at convection section, form three flue gas backhauls.
Claims (2)
1. one kind effectively can be reduced the boiler of discharged nitrous oxides, it is characterized in that: it comprises upper drum, lower drum, burner hearth, convection section, described furnace outlet is directly connected with convection section, and described convection section is provided with at least twice mid-feather, forms at least two flue gas backhauls.
2. a kind of boiler that effectively can reduce discharged nitrous oxides according to claim 1, is characterized in that: described convection section is provided with three road mid-feathers, forms three flue gas backhauls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510544474.7A CN105042572A (en) | 2015-08-31 | 2015-08-31 | Boiler capable of effectively lowering nitrogen oxide emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510544474.7A CN105042572A (en) | 2015-08-31 | 2015-08-31 | Boiler capable of effectively lowering nitrogen oxide emission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105042572A true CN105042572A (en) | 2015-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510544474.7A Pending CN105042572A (en) | 2015-08-31 | 2015-08-31 | Boiler capable of effectively lowering nitrogen oxide emission |
Country Status (1)
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| CN (1) | CN105042572A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369576A (en) * | 2016-10-31 | 2017-02-01 | 无锡市智锋金属科技有限公司 | Novel condensation type steam boiler |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2804613Y (en) * | 2005-06-09 | 2006-08-09 | 南通万达锅炉股份有限公司 | 4t/h sub-pressure boiler |
| CN201129712Y (en) * | 2007-02-05 | 2008-10-08 | 太康县银晨锅炉有限公司 | Horizontal type inverse burning environment protection steam boilers |
| EP2414733A2 (en) * | 2009-03-30 | 2012-02-08 | Witold Kowalewski | Stoker-fired boiler, method of modernisation of such a boiler and a method for reducing of particulate matter emission from such a boiler. |
| CN202221076U (en) * | 2011-09-19 | 2012-05-16 | 北京奥科瑞丰机电技术有限公司 | Biomass boiler with high energy efficiency |
| CN202581280U (en) * | 2012-02-13 | 2012-12-05 | 东莞市盈信节能投资有限公司 | Full-membrane wall biomass boiler |
| CN202660727U (en) * | 2012-04-03 | 2013-01-09 | 山东泰安山锅集团有限公司 | Hot water boiler burning brown coal |
| CN205014341U (en) * | 2015-08-31 | 2016-02-03 | 衡阳市大成锅炉有限公司 | Can effectively reduce boiler that nitrogen oxide discharged |
-
2015
- 2015-08-31 CN CN201510544474.7A patent/CN105042572A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2804613Y (en) * | 2005-06-09 | 2006-08-09 | 南通万达锅炉股份有限公司 | 4t/h sub-pressure boiler |
| CN201129712Y (en) * | 2007-02-05 | 2008-10-08 | 太康县银晨锅炉有限公司 | Horizontal type inverse burning environment protection steam boilers |
| EP2414733A2 (en) * | 2009-03-30 | 2012-02-08 | Witold Kowalewski | Stoker-fired boiler, method of modernisation of such a boiler and a method for reducing of particulate matter emission from such a boiler. |
| CN202221076U (en) * | 2011-09-19 | 2012-05-16 | 北京奥科瑞丰机电技术有限公司 | Biomass boiler with high energy efficiency |
| CN202581280U (en) * | 2012-02-13 | 2012-12-05 | 东莞市盈信节能投资有限公司 | Full-membrane wall biomass boiler |
| CN202660727U (en) * | 2012-04-03 | 2013-01-09 | 山东泰安山锅集团有限公司 | Hot water boiler burning brown coal |
| CN205014341U (en) * | 2015-08-31 | 2016-02-03 | 衡阳市大成锅炉有限公司 | Can effectively reduce boiler that nitrogen oxide discharged |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106369576A (en) * | 2016-10-31 | 2017-02-01 | 无锡市智锋金属科技有限公司 | Novel condensation type steam boiler |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151111 |