CN205447804U - Oxygen injection device and oxygen boosting burning boiler of oxygen boosting burning boiler - Google Patents
Oxygen injection device and oxygen boosting burning boiler of oxygen boosting burning boiler Download PDFInfo
- Publication number
- CN205447804U CN205447804U CN201620296754.0U CN201620296754U CN205447804U CN 205447804 U CN205447804 U CN 205447804U CN 201620296754 U CN201620296754 U CN 201620296754U CN 205447804 U CN205447804 U CN 205447804U
- Authority
- CN
- China
- Prior art keywords
- oxygen
- tail gas
- circulation
- gas flue
- injection device
- 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.)
- Active
Links
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 202
- 239000001301 oxygen Substances 0.000 title claims abstract description 202
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 190
- 238000002347 injection Methods 0.000 title claims abstract description 38
- 239000007924 injection Substances 0.000 title claims abstract description 38
- 239000007789 gas Substances 0.000 claims abstract description 99
- 230000001174 ascending effect Effects 0.000 claims abstract description 52
- 238000002485 combustion reaction Methods 0.000 claims abstract description 41
- 150000002926 oxygen Chemical class 0.000 claims abstract description 11
- 239000007921 spray Substances 0.000 claims description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 claims description 6
- 241000628997 Flos Species 0.000 claims description 5
- 239000006185 dispersion Substances 0.000 abstract 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 16
- 229910002092 carbon dioxide Inorganic materials 0.000 description 8
- 239000001569 carbon dioxide Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 239000000446 fuel Substances 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000002671 adjuvant Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- -1 therefore Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Air Supply (AREA)
Abstract
The utility model discloses an oxygen boosting burning boiler and oxygen injection device, this oxygen injection device include tail gas circular flue (1), this tail gas circular flue's (1) entry linkage in the furnace gas exhaust port of oxygen boosting burning boiler to this tail gas circular flue's (1) exit linkage in the combustor of oxygen boosting burning boiler, wherein, many oxygen ascending pipe (2) are inserted uniformly to the inside of tail gas circular flue (1) to be equipped with a plurality of oxygen injecting holes of align to grid on the pipe wall of these oxygen ascending pipe (2). Through arrange many oxygen ascending pipes uniformly in tail gas circular flue to consequently set up the oxygen injecting hole uniformly on the pipe wall of every oxygen ascending pipe, can form evenly distributed's oxygen injecting air current in tail gas circular flue, so as to with oxygen uniformly the dispersion improve the combustion efficiency behind the gaseous entering boiler furnace to the tail gas in.
Description
Technical field
This utility model relates to oxygen-enriched combusting field, in particular it relates to a kind of oxygen-enriched combustion boiler and oxygen injection device thereof.
Background technology
Oxygen-enriched combustion technology is the most environmentally friendly technology of one on the basis of traditional air burning technology after development improvement.In traditional air burning technology, using air as combustion adjuvant, containing the dusty gas such as nitrogen oxides, sulfur dioxide in the tail gas after burning, and the content of carbon dioxide is relatively low, is unfavorable for focusing on.In oxygen-enriched combustion technology, use pure oxygen or oxygen-enriched as combustion adjuvant, therefore, fuel can be made substantially more to burn, the content of the carbon dioxide in waste gas produced after fuel combustion is the highest, in tail gas after removing dust, condensation process, the content of carbon dioxide can reach 80-98%, by pipeline, highly purified carbon dioxide is imported storage device compression storage, processes such that it is able to focus on carbon dioxide.
It addition, in order to the partial pressure of oxygen of the mixed gas within burner hearth sent into by smooth combustion device, send into burner hearth after needing to mix the tail gas that burning produces with fuel and oxygen and burn.In oxygen-enriched combusting, due to reasons such as the diffusion rate that have impact on oxygen in combustion process of carbon dioxide of high concentration and carbon dioxide high specific heat capacity, coal powder ignition is caused to postpone, it is thus desirable to regulate pure oxygen and the ratio of flue gas especially, ensure the oxygen amount demand matched with load, and oxygen and flue gas mix homogeneously can be ensured within the extremely short time.Therefore, in oxygen-enriched combustion system, the most efficiently and safely pure oxygen oxygen is injected in flue gas and mix homogeneously is the subject matter faced at present rapidly.
Utility model content
The purpose of this utility model is to provide and a kind of oxygen can quickly and uniformly be mixed into the oxygen injection device in the recirculation tail gas of oxygen-enriched combustion boiler.
It addition, the purpose of this utility model also includes providing a kind of oxygen-enriched combustion boiler, oxygen can be quickly and uniformly mixed in the recirculation tail gas of oxygen-enriched combustion boiler by the oxygen injection device of this oxygen-enriched combustion boiler.
To achieve these goals, this utility model provides the oxygen injection device of a kind of oxygen-enriched combustion boiler, including circulation of tail gas flue, the entrance of this circulation of tail gas flue is connected to the furnace off-gas floss hole of described oxygen-enriched combustion boiler, and the outlet of this circulation of tail gas flue is connected to the burner of described oxygen-enriched combustion boiler, wherein, described oxygen injection device includes the many oxygen ascending pipes inserted equably within described circulation of tail gas flue, and the tube wall of this oxygen ascending pipe is provided with evenly distributed multiple oxygen spray holes.
Preferably, described circulation of tail gas air flue horizontal extends, and described oxygen ascending pipe includes the horizontal oxygen ascending pipe horizontally extended within described circulation of tail gas flue and the vertical oxygen ascending pipe vertically stretched within described circulation of tail gas flue.
Preferably, described horizontal oxygen ascending pipe and described vertical oxygen ascending pipe is equally spaced from each other is alternately arranged.
Preferably, described horizontal oxygen ascending pipe connects has the vertical oxygen of equidistantly arrangement and vertically extension to inject arm, described vertical oxygen ascending pipe connects has the horizontal-extending horizontal oxygen of equidistantly arrangement to inject arm, and described vertical oxygen injects arm and described horizontal oxygen injects arms parallel and extends in the cross section of described circulation of tail gas flue.
Preferably, described vertical oxygen injects the tube wall of arm and described horizontal oxygen injection arm and is provided with evenly distributed oxygen spray hole, and the injection direction in this oxygen spray hole is parallel to the cross section of described circulation of tail gas flue to form the length direction spaced apart multiple tracks brattice along this circulation of tail gas flue.
Preferably, many oxygen ascending pipes are by oxygen supply supervisor's supply oxygen.
Preferably, the part that each described oxygen ascending pipe is positioned at outside described circulation of tail gas flue is respectively arranged with control valve.
Preferably, the sidewall of described circulation of tail gas flue is formed with maintenance door.
Preferably, described circulation of tail gas air flue horizontal extends, and the bottom of the port of export of described circulation of tail gas flue is provided with condensate water collecting groove.
It addition, this utility model additionally provides a kind of oxygen-enriched combustion boiler, wherein, this oxygen-enriched combustion boiler includes the oxygen injection device according to the oxygen-enriched combustion boiler described in any one in above scheme.
Pass through technique scheme, by arranging many oxygen ascending pipes in circulation of tail gas flue equably, and oxygen spray hole is set on the tube wall of every oxygen ascending pipe equably, therefore equally distributed jet flow of oxygen can be formed in circulation of tail gas flue, it is thus possible to oxygen is quickly and uniformly distributed in tail gas, obtain overall and that local homogeneity is good mixed gas, improve the efficiency of combustion after mixed gas enters boiler furnace.
Other features and advantages of the utility model will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes a part for description, is used for explaining this utility model, but is not intended that restriction of the present utility model together with detailed description below.In the accompanying drawings:
Fig. 1 is the structural representation of the oxygen injection device of the oxygen-enriched combustion boiler according to a kind of detailed description of the invention of the present utility model.
Fig. 2 is the structural representation of the cross section of the oxygen injection device of the oxygen-enriched combustion boiler according to a kind of detailed description of the invention of the present utility model.
Fig. 3 is a section of the circulation of tail gas flue in the oxygen injection device according to a kind of detailed description of the invention of the present utility model, the VELOCITY DISTRIBUTION schematic diagram drawn by finite element analysis software.
Fig. 4 is the section at the circulation of tail gas flue identical with Fig. 3, the Temperature Distribution schematic diagram drawn by finite element analysis software.
Fig. 5 is the section at the circulation of tail gas flue identical with Fig. 3, by the distribution schematic diagram of the oxygen concentration (molar fraction) that finite element analysis software draws.
Description of reference numerals
1 circulation of tail gas flue 2 oxygen ascending pipe
21 vertical oxygen ascending pipe 22 horizontal oxygen ascending pipes
23 horizontal oxygen inject the vertical oxygen of arm 24 and inject arm
3 oxygen supply house steward 4 control valves
5 maintenance door 6 condensate water collecting grooves
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail.It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains this utility model, it is not limited to this utility model.
This utility model provides the oxygen injection device of a kind of oxygen-enriched combustion boiler, including circulation of tail gas flue 1, the entrance of this circulation of tail gas flue 1 is connected to the furnace off-gas floss hole of described oxygen-enriched combustion boiler, and the outlet of this circulation of tail gas flue 1 is connected to the burner of described oxygen-enriched combustion boiler, wherein, described oxygen injection device includes inserting the internal many oxygen ascending pipes 2 of described circulation of tail gas flue 1 equably, and the tube wall of this oxygen ascending pipe 2 is provided with evenly distributed multiple oxygen spray holes (aperture can keep consistent).
After tail gas (predominantly carbon dioxide) in circulation of tail gas flue 1 uniformly mixes with oxygen, fuel can be carried after being sufficiently mixed with fuel and be transported in burner hearth by the air outlet of burner again, be First air；Directly can also be transported in burner hearth by the air outlet of burner, be secondary wind, surrounding air, cooling wind etc..Oxygen ascending pipe 2 is evenly distributed in circulation of tail gas flue 1, and its tube wall is provided with evenly distributed oxygen spray hole, therefore can be discharged in circulation of tail gas flue 1 with being more uniformly distributed by oxygen, make oxygen mix with being more uniformly distributed with tail gas.Especially, the bearing of trend of oxygen ascending pipe 2 can be parallel to the cross section (being perpendicular to the overall flow direction of air-flow) of circulation of tail gas flue 1, and the oxygen spray hole on oxygen ascending pipe 2 towards the most parallel described cross section, thus the parallel current sprayed by oxygen spray hole is in described cross section, form the brattice being perpendicular to air-flow overall flow direction, it is multiple that such brattice can be formed along air-flow overall flow direction, such that it is able to substantially more by oxygen mix to tail gas.
Specifically, described circulation of tail gas flue 1 is horizontal-extending, and described oxygen ascending pipe 2 includes the horizontal oxygen ascending pipe 22 horizontally extended within described circulation of tail gas flue 1 and the vertical oxygen ascending pipe 21 vertically stretched within described circulation of tail gas flue 1.By the horizontal oxygen ascending pipe 22 extended with vertical direction the most in the horizontal direction and vertical oxygen ascending pipe 21 (diameter of the two can be identical with length), in the case of the cross section being directed parallel to circulation of tail gas flue 1 meeting described oxygen spray hole, described oxygen spray hole can extend towards different directions, including horizontal direction and vertical direction.
Further, described horizontal oxygen ascending pipe 22 and described vertical oxygen ascending pipe 21 is equally spaced from each other is alternately arranged, correspondingly, in the case of the cross section being directed parallel to circulation of tail gas flue 1 in described oxygen spray hole, the air-flow of the brattice formed is towards can alternately circulate, and the spacing of brattice is identical, the most orderly structure design can improve the uniformity coefficient that oxygen mixes with tail gas further.
Additionally, as shown in Figure 1, described horizontal oxygen ascending pipe 22 connects has the vertical oxygen of equidistantly arrangement and vertically extension to inject arm 24, described vertical oxygen ascending pipe 21 connects has the horizontal-extending horizontal oxygen of equidistant arrangement to inject arm 23, and described vertical oxygen injection arm 24 injects arm 23 (diameter can be identical with length) and is parallel to the cross section extension of described circulation of tail gas flue 1 with described horizontal oxygen.By connecting branch on vertical oxygen ascending pipe 21 and horizontal oxygen ascending pipe 22, can be the most intensive and be evenly distributed in circulation of tail gas flue 1, correspondingly, the oxygen spray hole being formed on arm can be more equally distributed in circulation of tail gas flue 1.Due to the impact of exhaust gas flow, the air-flow sprayed by the oxygen spray hole on oxygen ascending pipe 2 can be gradually echoed off, and therefore can use the most intensive above-described design structure, alleviates the decay of jet-stream wind.
Preferably, described vertical oxygen injects the tube wall of arm 24 and described horizontal oxygen injection arm 23 and is provided with evenly distributed oxygen spray hole, and the injection direction in this oxygen spray hole is parallel to the cross section of described circulation of tail gas flue 1 to form the length direction spaced apart multiple tracks brattice along this circulation of tail gas flue 1.Described oxygen spray hole can be mainly formed at described vertical oxygen and inject on arm 24 and described horizontal oxygen injection arm 23, thus form multiple brattice extending in different directions flowing by the air-flow of described oxygen spray hole injection, thus the mixing of enriched with oxygen and tail gas in multiple times.
Specifically, many oxygen ascending pipes 2 are by oxygen supply supervisor 3 supply oxygen.Many oxygen ascending pipes 2, more specifically, described vertical oxygen injects arm 24 and described horizontal oxygen injects arm 23, it is communicated in single oxygen supply supervisor 3, i.e. can ensure that the oxygen pressure that oxygen supply is originated is identical with partial pressure of oxygen, so that the gas ejected by described oxygen spray hole can have basically identical speed.
It addition, the part that each described oxygen ascending pipe 2 is positioned at outside described circulation of tail gas flue 1 is respectively arranged with control valve 4.The opening and closing of each oxygen ascending pipe 2 can be controlled, such that it is able to suitably regulate the amount of the oxygen being passed through in tail gas, to adapt to different fuel type and different combustion conditions by control valve 4.
Additionally, be formed with maintenance door 5 on the sidewall of described circulation of tail gas flue 1.The inside of circulation of tail gas flue 1 can be entered by maintenance door 5 staff and carry out service work, maintenance door 5 install it should be guaranteed that good sealing property, it is to avoid gas leaks.
Specifically, as depicted in figs. 1 and 2, described circulation of tail gas flue 1 is horizontal-extending, and the bottom of the port of export of described circulation of tail gas flue 1 is provided with condensate water collecting groove 6.Condensate water collecting groove 6 can prominent to the bottom of circulation of tail gas flue be formed.Containing a certain amount of steam in the tail gas that oxygen-enriched combustion boiler burning produces, along with tail gas flows in circulation of tail gas flue 1, the temperature of tail gas is gradually reduced, steam can condense and fall in the bottom of circulation of tail gas flue 1, condensation water can be collected therefore in the condensate water collecting groove 6 bottom the port of export and focus on, floss hole such as can be set on condensate water collecting groove 6 and by this floss hole of Valve controlling, emit such that it is able to condensation water periodically will be collected.
It addition, this utility model additionally provides a kind of oxygen-enriched combustion boiler, wherein, this oxygen-enriched combustion boiler includes the oxygen injection device according to the oxygen-enriched combustion boiler described in any one in above scheme.
Additionally, the interior flow field of the circulation of tail gas flue of oxygen injection device of the present utility model is simulated by finite element analysis software, the schematic diagram of the speed shown in Fig. 3-Fig. 5, temperature and oxygen concentration can be drawn, wherein, the a length of 2500mm of circulation of tail gas flue 1, width is 1200mm, and height is 1000mm, the entrance 1100mm of selected cross-sectional distance circulation of tail gas flue 1.Wherein, as can be seen from Figure 3, main region speed is 10-22m/s, from fig. 4, it can be seen that Temperature Distribution is the most uniform, mobility scale is from 337K to 350K, difference 13K, from fig. 5, it can be seen that the distribution of oxygen mole concentration is respectively less than 28%, and the region of more than 90% has reached 14%-25%, uniformity is preferable.As can be seen here, oxygen can be quickly and uniformly injected in the flue gas of circulation of tail gas flue by oxygen injection device of the present utility model in the short period of time, entirety has good uniformity, and there is no the problem that local concentration is too low or too high, therefore, the mixed gas being injected by circulation of tail gas flue in the burner hearth of oxygen-enriched combustion boiler can be made to mix with fuel more fully, burn, improve efficiency of combustion.
Preferred implementation of the present utility model is described in detail above in association with accompanying drawing; but; this utility model is not limited to the detail in above-mentioned embodiment; in technology concept of the present utility model; the technical solution of the utility model can be carried out multiple simple variant, these simple variant belong to protection domain of the present utility model.
It is further to note that, each concrete technical characteristic described in above-mentioned detailed description of the invention, in the case of reconcilable, can be combined by any suitable means, in order to avoid unnecessary repetition, various possible compound modes are illustrated by this utility model the most separately.
Additionally, can also carry out combination in any between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (10)
1. the oxygen injection device of an oxygen-enriched combustion boiler, including circulation of tail gas flue (1), the entrance of this circulation of tail gas flue (1) is connected to the furnace off-gas floss hole of described oxygen-enriched combustion boiler, and the outlet of this circulation of tail gas flue (1) is connected to the burner of described oxygen-enriched combustion boiler, it is characterized in that, described oxygen injection device includes inserting the many oxygen ascending pipes (2) that described circulation of tail gas flue (1) is internal equably, and the tube wall of this oxygen ascending pipe (2) is provided with evenly distributed multiple oxygen spray holes.
Oxygen injection device the most according to claim 1, it is characterized in that, described circulation of tail gas flue (1) is horizontal-extending, and described oxygen ascending pipe (2) includes horizontally extending into the internal horizontal oxygen ascending pipe (22) of described circulation of tail gas flue (1) and vertically stretching into the vertical oxygen ascending pipe (21) that described circulation of tail gas flue (1) is internal.
Oxygen injection device the most according to claim 2, it is characterised in that described horizontal oxygen ascending pipe (22) and described vertical oxygen ascending pipe (21) is equally spaced from each other is alternately arranged.
Oxygen injection device the most according to claim 2, it is characterized in that, described horizontal oxygen ascending pipe (22) connects has the vertical oxygen of equidistantly arrangement and vertically extension to inject arm (24), described vertical oxygen ascending pipe (21) connects has the horizontal-extending horizontal oxygen of equidistant arrangement to inject arm (23), and described vertical oxygen injects arm (24) and described horizontal oxygen injects arm (23) and is parallel to the cross section extension of described circulation of tail gas flue (1).
Oxygen injection device the most according to claim 4, it is characterized in that, described vertical oxygen injects the tube wall of arm (24) and described horizontal oxygen injection arm (23) and is provided with evenly distributed oxygen spray hole, and the injection direction in this oxygen spray hole is parallel to the cross section of described circulation of tail gas flue (1) to form the length direction spaced apart multiple tracks brattice along this circulation of tail gas flue (1).
Oxygen injection device the most according to claim 1, it is characterised in that many oxygen ascending pipes (2) are by oxygen supply supervisor (3) supply oxygen.
Oxygen injection device the most according to claim 6, it is characterised in that the part that each described oxygen ascending pipe (2) is positioned at described circulation of tail gas flue (1) outside is respectively arranged with control valve (4).
Oxygen injection device the most according to claim 1, it is characterised in that be formed with maintenance door (5) on the sidewall of described circulation of tail gas flue (1).
Oxygen injection device the most according to claim 1, it is characterised in that described circulation of tail gas flue (1) is horizontal-extending, the bottom of the port of export of described circulation of tail gas flue (1) is provided with condensate water collecting groove (6).
10. an oxygen-enriched combustion boiler, it is characterised in that this oxygen-enriched combustion boiler includes the oxygen injection device according to the oxygen-enriched combustion boiler described in any one in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620296754.0U CN205447804U (en) | 2016-04-11 | 2016-04-11 | Oxygen injection device and oxygen boosting burning boiler of oxygen boosting burning boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620296754.0U CN205447804U (en) | 2016-04-11 | 2016-04-11 | Oxygen injection device and oxygen boosting burning boiler of oxygen boosting burning boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205447804U true CN205447804U (en) | 2016-08-10 |
Family
ID=56606701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620296754.0U Active CN205447804U (en) | 2016-04-11 | 2016-04-11 | Oxygen injection device and oxygen boosting burning boiler of oxygen boosting burning boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205447804U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674322A (en) * | 2016-04-11 | 2016-06-15 | 中国神华能源股份有限公司 | Oxygen injection device of oxygen-enriched combustion boiler and oxygen-enriched combustion boiler |
-
2016
- 2016-04-11 CN CN201620296754.0U patent/CN205447804U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105674322A (en) * | 2016-04-11 | 2016-06-15 | 中国神华能源股份有限公司 | Oxygen injection device of oxygen-enriched combustion boiler and oxygen-enriched combustion boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103615713B (en) | A kind of coal dust oxygen enrichment flameless combustion process and system thereof | |
| CN103328786B (en) | Gas turbine and air inlet segmentation thereof and flue gas recirculation method | |
| CN103643986B (en) | Integrated device for synergetic oxidation of low-concentration gas and ventilation gas of self-backheating coal mine | |
| CN207635328U (en) | A kind of low nitrogen combustion apparatus for flue gas recirculation | |
| CN103234196B (en) | A kind of preposition coal gasification grate firing device and combustion method thereof | |
| CN202868674U (en) | High-efficiency low-energy-consumption smoke denitration device of circulating fluidized bed boiler | |
| CN106322360A (en) | Selective non-catalytic reduction (SNCR) and flue gas recirculation coupling denitration system for chain furnace | |
| CN204678324U (en) | A kind of low nitrogen burning transformation method reduces the device of boiler smoke NOx | |
| CN204042867U (en) | A kind of low-NO_x burner system | |
| CN205447804U (en) | Oxygen injection device and oxygen boosting burning boiler of oxygen boosting burning boiler | |
| CN207527571U (en) | A kind of natural gas boiler low nitrogen burning system | |
| CN105674322A (en) | Oxygen injection device of oxygen-enriched combustion boiler and oxygen-enriched combustion boiler | |
| CN203517848U (en) | Boiler tail gas recirculator, flue gas system and boiler | |
| CN203036634U (en) | Fractional combustion low-nitrogen oxide rotational flow burner | |
| CN201599815U (en) | Flue gas circulation heat exchange device of coal injection system | |
| CN104896501B (en) | The low NO of a kind of coal dust xoxygen-enriched burning device | |
| CN107883374A (en) | A kind of natural gas boiler low nitrogen burning system and technique | |
| CN205065742U (en) | A little windy volume direct combustion formula exhaust treatment device | |
| CN103398397A (en) | Combustion system of boiler and combustion method implemented by aid of system | |
| CN205065771U (en) | Directly blow high -efficient blast proof stove cigarette of formula coal pulverizer and mix fever device | |
| US8789479B2 (en) | Oxygen mixer for oxygen combustion boiler | |
| CN204502758U (en) | A kind of ammoniacal liquor gasification furnace | |
| CN209181517U (en) | A kind of ceramic kiln burning oxygen-enriched combustion-supporting energy saver | |
| CN203823793U (en) | Oxygen injector suitable for rectangular pipeline | |
| CN206669720U (en) | A kind of sedimentation furnace apparatus for being used to reduce Blended Coal Combustion NOx emission |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |