CN204962838U - Boiler oxygen boosting burning gas supply system - Google Patents
Boiler oxygen boosting burning gas supply system Download PDFInfo
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- CN204962838U CN204962838U CN201520652814.3U CN201520652814U CN204962838U CN 204962838 U CN204962838 U CN 204962838U CN 201520652814 U CN201520652814 U CN 201520652814U CN 204962838 U CN204962838 U CN 204962838U
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- oxygen
- combustion
- supply system
- mixing duct
- blast furnace
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- 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
Abstract
The utility model discloses a boiler oxygen boosting burning gas supply system, including air piping, pure oxygen pipeline and blast furnace gas pipeline, its characterized in that, air piping be connected to the forced draught blower, mixing duct is sent the air into to the forced draught blower, the pure oxygen tube coupling is on mixing duct, air and pure oxygen intensive mixing in mixing duct form behind 28% oxygen concentration's the oxygen boosting combustion -supporting gas in the drum goes into furnace, the blast furnace gas pipe connection fully burns behind blast furnace gas and the combustion -supporting gas mixing of oxygen boosting to the furnace in. Boiler oxygen boosting burning gas supply system make whole combustion system because of the oxygen -enriched environment reduces the heat loss of fuel, effectively improve combustion system's heating rate, improve furnace flame temperature and intensity, effectively improve the efficiency of heat transfer of furnace flame, the heat radiation improves, improve heat utilization efficiency, energy -conserving combustion -supporting, pollution abatement nature gas purging, the ecological disruption is avoided causing in the environmental protection.
Description
Technical field
The utility model relates to oxygen-enriched combustion technology field, particularly relates to a kind of boiler oxygen-enriched combusting air supply system.
Background technology
12MW power generation by waste heat of coal gas unit, the rich coal gas adopting burning blast furnace to produce generates electricity, and coal gas introduces boiler, air is being introduced boiler and coal gas in nozzles place mixed combustion of burning, being heat energy, being finally converted into electric energy by burning chemical energy.Usual employing air is as fire retardant, and because the oxygen content in air is about 21%, oxygen content concentration is not rich, make burning abundant not, ignition temperature is not high enough, produces the gases such as HC, CO of a large amount of possible trouble after burning, cause atmosphere pollution and ecological disruption, electric energy conversion efficiency is low.
Utility model content
The technical assignment of technical problem to be solved in the utility model and proposition improves prior art, a kind of boiler oxygen-enriched combusting air supply system is provided, solving power generation by waste heat of coal gas unit traditional in current technology adopts air to carry out combustion-supporting, burn abundant not, ignition temperature is not high enough, produce the gases such as HC, CO of a large amount of possible trouble after burning, cause atmosphere pollution and ecological disruption, the problem that electric energy conversion efficiency is low.
For solving above technical problem, the technical solution of the utility model is:
A kind of boiler oxygen-enriched combusting air supply system, comprise air pipe line, pure oxygen pipeline and blast furnace gas pipeline, it is characterized in that, described air pipe line is connected to pressure fan, air is sent into mixing duct by pressure fan, and pure oxygen pipeline is connected on mixing duct, and air and pure oxygen blast in burner hearth be thoroughly mixed to form the oxygen-enriched combustion-supporting gas of 28% oxygen concentration in mixing duct after, blast furnace gas pipeline is connected in burner hearth, Thorough combustion after blast furnace gas and oxygen-enriched combustion-supporting gas and vapor permeation.Air is mixed the concentration improving oxygen by boiler oxygen-enriched combusting air supply system described in the utility model with pure oxygen; burning can be made more abundant when oxygen concentration reaches 28%; and ignition temperature is higher; improve heat radiation; ensure that burning is more complete, improve electric energy conversion efficiency, decreasing pollution gas purging; protection of the environment, avoids causing ecological disruption.
Further, some nozzles are provided with in described burner hearth, mixing duct is connected on nozzle, and oxygen-enriched combustion-supporting gas directly delivers to the place of most anoxic in burner hearth by nozzle, makes whole combustion system reduce the heat loss of fuel because of oxygen-enriched environment, the heating rate of effective raising combustion system, improve furnace flame temperature and intensity, effectively improve the heat transference efficiency of furnace flame, improve heat radiation, energy saving combustion supporting, reaches the maximized object of the energy saving space with lower cost.
Further, described blast furnace gas pipeline is connected with nozzle, blast furnace gas and oxygen-enriched combustion-supporting gas and vapor permeation are sent in burner hearth by nozzle, guarantee further blast furnace gas and oxygen-enriched combustion-supporting gas and vapor permeation abundant, thus make blast furnace gas combustion more abundant, avoid blast furnace gas and oxygen-enriched combustion-supporting gas mix difficult in burner hearth and cause burning abundant not.
Further, described pure oxygen pipeline is provided with oxygen valve group and controls oxygen flow, regulate suitable oxygen amount, oxygen concentration and oxygen pressure, make to be mixed to get the oxygen concentration that oxygen-enriched combustion-supporting gas has 28%.
Further, described pure oxygen pipeline and mixing duct junction arrange oxygen spray gun in mixing duct, improve the mixing uniformity of pure oxygen and air.
Further, the injection direction of described oxygen spray gun is contrary with the throughput direction of air in mixing duct, makes pure oxygen injection direction become reverse with the flow direction of air, makes mixing more abundant.
Compared with prior art, the utility model advantage is:
Boiler oxygen-enriched combusting air supply system described in the utility model makes whole combustion system reduce the heat loss of fuel because of oxygen-enriched environment; the heating rate of effective raising combustion system; improve furnace flame temperature and intensity; effective heat transference efficiency improving furnace flame, improves heat radiation, improves heat utilization ratio; energy saving combustion supporting; decreasing pollution gas purging, protection of the environment, avoids causing ecological disruption.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of oxygen spray gun.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
A kind of boiler oxygen-enriched combusting air supply system disclosed in the utility model embodiment, what oxygen and air were mixed is more abundant and even, directly enters into stove center and fuel mix, strengthen flame intensity, accelerate burning velocity, improve heat radiation, ensure that burning is more complete.
As depicted in figs. 1 and 2, a kind of boiler oxygen-enriched combusting air supply system, comprise air pipe line 1, pure oxygen pipeline 2 and blast furnace gas pipeline 3, air pipe line 1 is connected to pressure fan 4, air is sent into mixing duct 5 by pressure fan 4, pure oxygen pipeline 2 is connected on mixing duct 5, air and pure oxygen are thoroughly mixed to form the oxygen-enriched combustion-supporting gas of 28% oxygen concentration in mixing duct 5, some nozzles 7 are provided with in burner hearth 6, mixing duct 5 is connected on nozzle 7, blast furnace gas pipeline 3 is connected with nozzle 7, blast furnace gas and oxygen-enriched combustion-supporting gas and vapor permeation are sent in burner hearth 6 by nozzle 7, , after blast furnace gas and oxygen-enriched combustion-supporting gas and vapor permeation in burner hearth 6 Thorough combustion.
And pure oxygen pipeline 2 is provided with oxygen valve group 8 and controls oxygen flow, pure oxygen pipeline 2 and mixing duct 5 junction arrange oxygen spray gun 9 in mixing duct 5, and the injection direction of oxygen spray gun 9 is contrary with the throughput direction of air in mixing duct 5.By industrial oxygen (purity: 99.99%) directly introduce in the mixing duct 5 after pressure fan 4, mix with air, by regulating, the oxygen concentration of the mixing air after air and oxygen mix is increased to about 28%, the pressure of technical oxygen is adjustable between 0-50KPa, and required industrial oxygen flow is at 0-1500m
3adjustable between/h.
Below be only preferred embodiment of the present utility model, it should be pointed out that above-mentioned preferred embodiment should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with claim limited range.For those skilled in the art, not departing from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (6)
1. a boiler oxygen-enriched combusting air supply system, comprise air pipe line (1), pure oxygen pipeline (2) and blast furnace gas pipeline (3), it is characterized in that, described air pipe line (1) is connected to pressure fan (4), air is sent into mixing duct (5) by pressure fan (4), pure oxygen pipeline (2) is connected on mixing duct (5), air and pure oxygen blast in burner hearth (6) be thoroughly mixed to form the oxygen-enriched combustion-supporting gas of 28% oxygen concentration in mixing duct (5) after, blast furnace gas pipeline (3) is connected in burner hearth (6), Thorough combustion after blast furnace gas and oxygen-enriched combustion-supporting gas and vapor permeation.
2. boiler oxygen-enriched combusting air supply system according to claim 1, is characterized in that, be provided with some nozzles (7) in described burner hearth (6), mixing duct (5) is connected on nozzle (7).
3. boiler oxygen-enriched combusting air supply system according to claim 2, it is characterized in that, described blast furnace gas pipeline (3) is connected with nozzle (7), and blast furnace gas and oxygen-enriched combustion-supporting gas and vapor permeation are sent in burner hearth (6) by nozzle (7).
4. boiler oxygen-enriched combusting air supply system according to claim 3, is characterized in that, described pure oxygen pipeline (2) is provided with oxygen valve group (8) and controls oxygen flow.
5. boiler oxygen-enriched combusting air supply system according to claim 4, is characterized in that, described pure oxygen pipeline (2) and mixing duct (5) junction arrange oxygen spray gun (9) in mixing duct (5).
6. boiler oxygen-enriched combusting air supply system according to claim 5, is characterized in that, the injection direction of described oxygen spray gun (9) is contrary with the throughput direction of mixing duct (5) interior air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520652814.3U CN204962838U (en) | 2015-08-27 | 2015-08-27 | Boiler oxygen boosting burning gas supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520652814.3U CN204962838U (en) | 2015-08-27 | 2015-08-27 | Boiler oxygen boosting burning gas supply system |
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| Publication Number | Publication Date |
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| CN204962838U true CN204962838U (en) | 2016-01-13 |
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| CN201520652814.3U Active CN204962838U (en) | 2015-08-27 | 2015-08-27 | Boiler oxygen boosting burning gas supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066114A (en) * | 2015-08-27 | 2015-11-18 | 四川德胜集团钒钛有限公司 | Boiler oxygen-enriched combustion system for power generation set |
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2015
- 2015-08-27 CN CN201520652814.3U patent/CN204962838U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066114A (en) * | 2015-08-27 | 2015-11-18 | 四川德胜集团钒钛有限公司 | Boiler oxygen-enriched combustion system for power generation set |
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| GR01 | Patent grant |