CN203980317U - NO_x Reduction by Effective multitubular boiler - Google Patents
NO_x Reduction by Effective multitubular boiler Download PDFInfo
- Publication number
- CN203980317U CN203980317U CN201420403065.6U CN201420403065U CN203980317U CN 203980317 U CN203980317 U CN 203980317U CN 201420403065 U CN201420403065 U CN 201420403065U CN 203980317 U CN203980317 U CN 203980317U
- Authority
- CN
- China
- Prior art keywords
- drum
- combustion chamber
- boiler
- burner hearth
- return combustion
- 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.)
- Expired - Fee Related
Links
- 239000000779 smoke Substances 0.000 claims abstract description 31
- 238000002485 combustion reaction Methods 0.000 claims abstract description 21
- 239000000126 substance Substances 0.000 claims abstract description 8
- 125000006850 spacer group Chemical group 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 27
- 230000007613 environmental effect Effects 0.000 abstract description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003546 flue gas Substances 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model relates to a kind of NO_x Reduction by Effective multitubular boiler, comprise drum (6), burner hearth (1), return combustion chamber (2), smoke pipe (5), front smoke box (9), economizer (8) and condenser (7), it is characterized in that: described boiler has additional flusher (3) and thermocouple (4) after stove, flusher after stove (3) and thermocouple (4) are all arranged at drum (6) rear side, its front end inserts in return combustion chamber (2), and flusher (3) comprises chemical feed pipe (31).The utility model boiler can fully reduce the content of the nitrogen oxide in flue gas, improves the environmental benefit of boiler, reaches the object of energy-saving and emission-reduction.
Description
Technical field
The utility model relates to a kind of multitubular boiler.Belong to Thermal Equipment technical field.
Background technology
Along with improving constantly of national environmental protection policy, solve PM2.5 air pollution and be more and more subject to the great attention of government, more and more higher to boiler pollutant emission request.The economic environmental protection operation of boiler more and more receives publicity, and therefore, improves the environmental benefit of boiler, has become question of common concern.
In every pollution of boiler, the pollution of nitrogen oxide is relatively given prominence to.So improving the environmental benefit of boiler first can start with from reducing the discharge of nitrogen oxide.Traditional horizontal tubular boiler generally just guarantees that the discharge of flue gas is up to state standards; do not carry out the too much specially treated of nitrogen oxides in effluent; but in the situation that now more and more focusing on environmental protection; the discharge standard that only reaches the formulation of current country is inadequate; moreover the discharge standard of country later also can be more and more higher; for the trend of keeping pace with the times, be necessary to develop the boiler that low azo-cycle is protected.Finally be of value to the social benefit that improves boiler.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of NO_x Reduction by Effective multitubular boiler that reduces the content of nitrogen oxide in boiler smoke is provided.
The purpose of this utility model is achieved in that a kind of NO_x Reduction by Effective multitubular boiler, comprise drum, burner hearth, return combustion chamber, smoke pipe, front smoke box, economizer and condenser, described drum is horizontal layout, burner hearth, return combustion chamber and smoke pipe are all arranged in drum, burner hearth is placed in bottom in drum, return combustion chamber is arranged at burner hearth rear side, and be connected with burner hearth cavity, smoke pipe is placed in drum internal upper part, front smoke box is arranged at drum front upper side, the tube side two ends of smoke pipe are connected with front smoke box and return combustion chamber respectively, economizer and condenser series connection are placed in the top outer of drum, economizer is connected with front smoke box, it is characterized in that: described boiler has additional flusher and thermocouple after stove, after stove, flusher and thermocouple are all arranged at drum rear side, its front end inserts in return combustion chamber, flusher comprises chemical feed pipe.
The utility model NO_x Reduction by Effective multitubular boiler, described chemical feed pipe is outside equipped with spacer, is provided with cooling water or compressed air inlet on spacer.
Nitrogen oxide mainly generates during high temperature in burner hearth, for the nitrogen oxide having generated in burner hearth flue gas, in the backward return combustion chamber of stove, sprays ammoniacal liquor or urea water, by reducing agents such as ammonia or urea, makes it to be reduced into harmless nitrogen G&W.Related chemical reaction mainly contains:
4NH
3 + 4NO + O
2 4N
2 + 6H
2O
8NH
3 + 6NO
2 7N
2 + 12H
2O
4NH
3 + 2NO
2 + O
2 3N
2 + 6H
2O
At the temperature of 1100 ℃ of 900 –, above-mentioned reaction can spontaneously be carried out.
The beneficial effects of the utility model are: the environmental-protecting performance that improves boiler.
The utility model boiler structure is succinct, and successful, by spraying after ammoniacal liquor or urea in return combustion chamber, makes the ammoniacal liquor of nitrogen oxide and sprinkling or urea carry out chemical reaction, reduces below fire box temperature to 1100 ℃, and impelling conversion of nitrogen oxides is harmless nitrogen.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model NO_x Reduction by Effective multitubular boiler.
In figure:
Burner hearth 1
Return combustion chamber 2
Flusher 3 after stove, chemical feed pipe 31,
Thermocouple 4
Smoke pipe 5
Drum 6
Condenser 7
Economizer 8
Front smoke box 9
Burner 10.
The specific embodiment
Referring to Fig. 1, Fig. 1 is the structural representation of the utility model NO_x Reduction by Effective multitubular boiler.As seen from Figure 1, the utility model NO_x Reduction by Effective multitubular boiler, comprises flusher 3 after drum 6, burner hearth 1, return combustion chamber 2, stove, thermocouple 4, smoke pipe 5, front smoke box 9, economizer 8, condenser 7 and burner 10.Described drum 6 is horizontal layout, burner hearth 1, return combustion chamber 2 and smoke pipe 5 are all arranged in drum 6, burner hearth 1 is placed in the interior bottom of drum 6, return combustion chamber 2 is arranged at burner hearth 1 rear side, and with burner hearth 1 intracavity inter-connection, after stove, flusher 3 and thermocouple 4 are all arranged at drum 6 rear sides, its front end inserts in return combustion chamber 2, flusher 3 comprises chemical feed pipe 31, chemical feed pipe 31 is outside equipped with spacer, on spacer, be provided with cooling water inlet or compressed air inlet 32, smoke pipe 5 is placed in drum 6 internal upper parts, front smoke box 9 is arranged at drum 6 front upper sides, the tube side two ends of smoke pipe 5 are connected with front smoke box 9 and return combustion chamber 2 respectively, economizer 8 and condenser 7 series connection are placed in the top outer of drum 6.Economizer 8 is connected with front smoke box 9.
From burner hearth out, advanced return combustion chamber, then to smoke pipe, proceed to economizer after front smoke box, finally enters condenser to flue gas, and the flue gas producing in burner hearth and the ammoniacal liquor spraying from stove or urea carry out chemical reaction, generate harmless nitrogen.
Claims (2)
1. a NO_x Reduction by Effective multitubular boiler, comprise drum (6), burner hearth (1), return combustion chamber (2), smoke pipe (5), front smoke box (9), economizer (8) and condenser (7), described drum (6) is horizontal layout, burner hearth (1), return combustion chamber (2) and smoke pipe (5) are all arranged in drum (6), burner hearth (1) is placed in the interior bottom of drum (6), return combustion chamber (2) is arranged at burner hearth (1) rear side, and with burner hearth (1) intracavity inter-connection, smoke pipe (5) is placed in drum (6) internal upper part, front smoke box (9) is arranged at drum (6) front upper side, the tube side two ends of smoke pipe (5) are connected with front smoke box (9) and return combustion chamber (2) respectively, economizer (8) and condenser (7) series connection are placed in the top outer of drum (6), economizer (8) is connected with front smoke box (9), it is characterized in that: described boiler has additional flusher (3) and thermocouple (4) after stove, flusher after stove (3) and thermocouple (4) are all arranged at drum (6) rear side, its front end inserts in return combustion chamber (2), flusher (3) comprises chemical feed pipe (31).
2. a kind of NO_x Reduction by Effective multitubular boiler according to claim 1, is characterized in that described chemical feed pipe (31) is outside equipped with spacer, is provided with cooling water or compressed air inlet (32) on spacer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420403065.6U CN203980317U (en) | 2014-07-22 | 2014-07-22 | NO_x Reduction by Effective multitubular boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420403065.6U CN203980317U (en) | 2014-07-22 | 2014-07-22 | NO_x Reduction by Effective multitubular boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203980317U true CN203980317U (en) | 2014-12-03 |
Family
ID=51977750
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420403065.6U Expired - Fee Related CN203980317U (en) | 2014-07-22 | 2014-07-22 | NO_x Reduction by Effective multitubular boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203980317U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781805A (en) * | 2016-08-29 | 2018-03-09 | 兰州明康热能环保设备有限公司 | A kind of novel environment friendly denitrogenates boiler |
| CN108413606A (en) * | 2018-03-16 | 2018-08-17 | 浙江特富锅炉有限公司 | A kind of efficient oil-burning boiler |
-
2014
- 2014-07-22 CN CN201420403065.6U patent/CN203980317U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107781805A (en) * | 2016-08-29 | 2018-03-09 | 兰州明康热能环保设备有限公司 | A kind of novel environment friendly denitrogenates boiler |
| CN108413606A (en) * | 2018-03-16 | 2018-08-17 | 浙江特富锅炉有限公司 | A kind of efficient oil-burning boiler |
| CN108413606B (en) * | 2018-03-16 | 2023-09-12 | 浙江特富锅炉有限公司 | High-efficiency oil-fired boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20141203 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |