CN203880695U - Regenerative combustion type flue gas recirculation system - Google Patents
Regenerative combustion type flue gas recirculation system Download PDFInfo
- Publication number
- CN203880695U CN203880695U CN201420250276.0U CN201420250276U CN203880695U CN 203880695 U CN203880695 U CN 203880695U CN 201420250276 U CN201420250276 U CN 201420250276U CN 203880695 U CN203880695 U CN 203880695U
- Authority
- CN
- China
- Prior art keywords
- air
- flue gas
- reversal valve
- cigarette
- heat
- 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
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 239000003546 flue gas Substances 0.000 title claims abstract description 28
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 20
- 230000001172 regenerating effect Effects 0.000 title abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 11
- 235000019504 cigarettes Nutrition 0.000 claims description 23
- 238000005338 heat storage Methods 0.000 claims description 8
- 239000003517 fume Substances 0.000 claims description 5
- 239000000779 smoke Substances 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 description 6
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000003034 coal gas Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- QRSFFHRCBYCWBS-UHFFFAOYSA-N [O].[O] Chemical compound [O].[O] QRSFFHRCBYCWBS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- Air Supply (AREA)
Abstract
The utility model relates to a regenerative combustion type flue gas recirculation system. The regenerative combustion type flue gas recirculation system comprises a gas pipeline port, an air pipeline port, an air smoke reversing valve, a regenerative burner, a flue gas conveying pipeline, an induced draft fan, a chimney and a circulation fan, wherein the gas pipeline port is connected with the regenerative burner; the air pipeline port is connected with the air side of the air smoke reversing valve; the regenerative burner is connected with the common side of the air smoke reversing valve; the flue gas conveying pipeline is communicated with the flue gas side of the air smoke reversing valve, passes through the induced draft fan and then is divided into two branches; one branch is connected with the chimney, and the other branch is connected with the circulation fan and then is combined into the air conveying pipeline in front of the air smoke reversing valve.
Description
Technical field
The utility model relates to the regenerative combustion system of smelting and heating, relates in particular to a kind of flue gas recirculation system of heat storage type combustion.
Background technology
At present, the combustion system of smelting and heating generally adopts heat accumulating type combustion technology, and air is delivered in heat accumulating type burner and is mixed and burn by pipeline with coal gas, and the flue gas of generation is discharged in atmosphere by flue.The nitrogen oxides in effluent content that this technical process generates is higher, to a certain degree affects air quality, contaminated environment.On the other hand, the heating and thermal insulation during phase in stove, 50%-60% when Fuel Consumption only be the period of heating, because Fuel Consumption is less, local temperature is high, and furnace atmosphere circulation multiplying power is low, and the interior temperature homogeneity of stove is bad.
Summary of the invention
The utility model provides a kind of flue gas recirculation system of heat storage type combustion, can meet the needs of heating furnace operation, improves the uniformity of temperature in stove, can reduce again the content of nitrogen oxide, reaches the effect of energy-saving and emission-reduction.
In order to achieve the above object, the utility model is realized by the following technical solutions:
The flue gas recirculation system of heat storage type combustion, comprise gas piping interface, air duct interface, empty cigarette reversal valve, heat-accumulating burner, flue gas delivery pipe line, air-introduced machine, chimney and circulating fan, described gas piping interface connects heat-accumulating burner, air duct interface connects the air side of sky cigarette reversal valve, heat-accumulating burner connects the public side of sky cigarette reversal valve, flue gas delivery pipe line is communicated with the fume side of empty cigarette reversal valve, flue gas delivery pipe line is divided into two branch roads after air-introduced machine, one branch road connects chimney, another branch road is incorporated to the air conveyance lines before sky cigarette reversal valve after connecing circulating fan.
Compared with prior art, the beneficial effects of the utility model are:
1) reduce the oxygen concentration of combustion air, participate in fuel combustion, thereby reduce furnace atmosphere oxygen content, increase exhaust gas volumn, increase circulating ratio, improve temperature uniformity;
2) reduce NOx discharge capacity, reduce the oxidization burning loss rate of steel billet, and reach the effect of energy-saving and emission-reduction;
3) structure &processes is simple, and input cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1. empty cigarette reversal valve 3. air blast 4. air-introduced machine 5. circulating fan 6. chimney 7. gas piping interface 8. air duct interface 9. flue gas delivery pipe lines of heat-accumulating burner 2.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described further:
See Fig. 1, it is structural representation of the present utility model, the flue gas recirculation system of the utility model heat storage type combustion, comprise gas piping interface 7, air duct interface 8, empty cigarette reversal valve 2, heat-accumulating burner 1, flue gas delivery pipe line 9, air-introduced machine 4, chimney 6 and circulating fan 5, described gas piping interface 7 connects heat-accumulating burner 1, air duct interface 8 connects the air side of sky cigarette reversal valve 2, heat-accumulating burner 1 connects the public side of sky cigarette reversal valve 2, flue gas delivery pipe line 9 is communicated with the fume side of empty cigarette reversal valve 2, flue gas delivery pipe line 9 is divided into two branch roads after air-introduced machine 4, one branch road connects chimney 6, another branch road is incorporated to the air conveyance lines before sky cigarette reversal valve 2 after connecing circulating fan 5.
The operation principle of the flue gas recirculation system of the utility model heat storage type combustion is: in existing smelting and heating regenerative combustion system, add a circulation branch road, after the air-introduced machine from flue gas delivery pipe line 94, with circulating fan 5, extract part of smoke out, before empty cigarette reversal valve 2, being incorporated to air conveyance lines 9 mixes with air, reduce combustion-supporting oxygen concentration, participate in stove fuel combustion process, thereby reach, reduce oxygen oxygen content in stove, increase exhaust gas volumn, increase circulating ratio, improve the object of temperature uniformity.
The course of work of the flue gas recirculation system of the utility model heat storage type combustion is: the coal gas in combustion system directly accesses heat-accumulating burner 1 through feed-line; Air accesses the air side of empty cigarette reversal valve 2 through feed-line, air side valve opening when empty cigarette reversal valve 2, in the time of fume side valve closing, air (air that has mixed flue gas) enters common-use tunnel through empty cigarette reversal valve 2, and enters heat-accumulating burner 1 and coal gas mixed combustion.Fume side valve opening when empty cigarette reversal valve 2, in the time of air side valve closing, flue gas is outwards carried by the common-use tunnel of empty cigarette reversal valve 2 under the effect of air-introduced machine 4, a part directly enters chimney 6 discharges, a part joins in air conveyance lines under the effect of circulating fan 5, before empty cigarette reversal valve 2, mixes with air.
Claims (1)
1. the flue gas recirculation system of heat storage type combustion, it is characterized in that, comprise gas piping interface, air duct interface, empty cigarette reversal valve, heat-accumulating burner, flue gas delivery pipe line, air-introduced machine, chimney and circulating fan, described gas piping interface connects heat-accumulating burner, air duct interface connects the air side of sky cigarette reversal valve, heat-accumulating burner connects the public side of sky cigarette reversal valve, flue gas delivery pipe line is communicated with the fume side of empty cigarette reversal valve, flue gas delivery pipe line is divided into two branch roads after air-introduced machine, one branch road connects chimney, another branch road is incorporated to the air conveyance lines before sky cigarette reversal valve after connecing circulating fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250276.0U CN203880695U (en) | 2014-05-15 | 2014-05-15 | Regenerative combustion type flue gas recirculation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420250276.0U CN203880695U (en) | 2014-05-15 | 2014-05-15 | Regenerative combustion type flue gas recirculation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203880695U true CN203880695U (en) | 2014-10-15 |
Family
ID=51681186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420250276.0U Expired - Fee Related CN203880695U (en) | 2014-05-15 | 2014-05-15 | Regenerative combustion type flue gas recirculation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203880695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791777A (en) * | 2015-04-09 | 2015-07-22 | 上海嘉德环境能源科技有限公司 | Combustion method for reducing NOx by adopting self-circulation of flue gas |
-
2014
- 2014-05-15 CN CN201420250276.0U patent/CN203880695U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791777A (en) * | 2015-04-09 | 2015-07-22 | 上海嘉德环境能源科技有限公司 | Combustion method for reducing NOx by adopting self-circulation of flue gas |
| CN104791777B (en) * | 2015-04-09 | 2017-11-21 | 上海嘉德环境能源科技有限公司 | One kind reduces NO using flue gas self-loopaXCombustion method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161024 Address after: High tech Zone in Heilongjiang province Harbin two Ju Bao road 150078 No. 589 Patentee after: Harbin Songjiang Electric Co., Ltd. Address before: 114014 No. 2, Yongkang street, Tiexi Development Zone, Anshan, Liaoning Patentee before: Liaoning Guide Science and Technology Development Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20180515 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |