CN105509089A - Oxygen-enriched combustion system - Google Patents
Oxygen-enriched combustion system Download PDFInfo
- Publication number
- CN105509089A CN105509089A CN201610041452.3A CN201610041452A CN105509089A CN 105509089 A CN105509089 A CN 105509089A CN 201610041452 A CN201610041452 A CN 201610041452A CN 105509089 A CN105509089 A CN 105509089A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- oxygen
- temperature flue
- communicated
- entrance
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L7/00—Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
- F23L7/007—Supplying oxygen or oxygen-enriched air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- 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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Supply (AREA)
Abstract
The invention relates to an oxygen-enriched combustion system. The oxygen-enriched combustion system comprises a boiler (1) and a coal mill (2). A hearth inlet (11) of the boiler is communicated with a coal mill outlet (22) of the coal mill. A hearth outlet (12) of the boiler is communicated with a coal mill inlet (21) of the coal mill. An oxygen injection device set for supplying oxygen to the boiler and a smoke cooling device for condensing at least one part of water in smoke are arranged on a pipeline between the hearth outlet and the coal mill inlet. According to the technical scheme, the smoke cooling device is arranged on the pipeline between the hearth outlet and the coal mill inlet, water vapor contained in the smoke is condensed to form liquid water through the cooling effect of the smoke cooling device, and the liquid water is drained from the pipeline between the hearth outlet and the coal mill inlet, so that the phenomenon that the hearth and pipelines in the boiler system are damaged due to the fact that water in smoke enters the hearth again is avoided.
Description
Technical field
The present invention relates to oxygen-enriched combustion technology, particularly, relate to a kind of oxygen-enriched combustion system.
Background technology
Oxygen-enriched combustion technology is in existing station boiler system-based, with the technology of carrying out burning higher than the oxygen-containing gas of air oxygen content, is a kind of energy-saving combustion technology efficiently.
Oxygen-enriched combustion technology main feature comprises: (1) uses highly purified O
2and CO
2gaseous mixture replaces conventional combustion air; (2) CO of higher volumes concentration is obtained by flue gas recirculation
2flue gas; (3) to realize CO after less cost condensation compression
2seal up for safekeeping or recycling, comparatively easily realize large-scale CO
2enrichment and reduction of discharging.Because this combustion system and existing power station combustion system have good connection in technology, also easily accepted by power industry.
In prior art during coal dust employing oxygen-enriched combusting, burn with conventional pulverized-coal and equally can produce a large amount of moisture, if the flue gas directly produced by oxygen-enriched combusting is as flue gas recycled, can there is enrichment phenomenon with flue gas recirculation in the water in circulating flue gas, again because containing SO in flue gas
x, can acidic materials be formed after moisture and its combination, thus corrosion is produced to cigarette air channel, burner hearth, heating surface etc., the high temperature corrosion of serious heating surface can be produced in stove.Except this, can acid corrosion be formed in the afterbody low temperature flue section of oxygen-enriched combustion system, reduce the service life of oxygen enrichment steam generator system smoke wind pipe, equipment.
Therefore, need to provide a kind of oxygen-enriched combustion system that can remove moisture in flue gas.
Summary of the invention
The object of this invention is to provide a kind of oxygen-enriched combustion system with by the moisture removal in flue gas.
To achieve these goals, the invention provides a kind of oxygen-enriched combustion system, wherein, this oxygen-enriched combustion system comprises boiler and coal pulverizer, the burner hearth entrance of described boiler and the coal pulverizer outlet of described coal pulverizer, the furnace outlet of described boiler is communicated with the coal pulverizer inlet of described coal pulverizer, the pipeline between described furnace outlet and described coal pulverizer inlet is provided with for the note oxygen device group to described boiler supplying oxygen with for making the flue gas cooling device of condensate moisture at least partially in flue gas.
Preferably, described oxygen-enriched combustion system also comprises the second flue gas heat-exchange unit, described second flue gas heat-exchange unit is arranged on the pipeline between described furnace outlet and described burner hearth entrance, described second flue gas heat-exchange unit comprises the second high-temperature flue gas entry, second high-temperature flue gas outlet, second low-temperature flue gas entrance and the outlet of the second low-temperature flue gas, described flue gas cooling device comprises cooling device entrance and cooling device outlet, described second high-temperature flue gas entry is communicated with described furnace outlet, described second high-temperature flue gas outlet is communicated with described cooling device entrance, described cooling device outlet is communicated with described second low-temperature flue gas entrance, described second low-temperature flue gas outlet is communicated with described burner hearth entrance by two pipelines.
Preferably, described second high-temperature flue gas exports on the pipeline that is communicated with described cooling device entrance and is provided with dust arrester and the second air-introduced machine, and described dust arrester, described second air-introduced machine and described flue gas cooling device are communicated with successively.
Preferably, described oxygen-enriched combustion system also comprises the first flue gas heat-exchange unit, described first flue gas heat-exchange unit is arranged on the pipeline that described second air-introduced machine is communicated with described second low-temperature flue gas entrance, described first flue gas heat-exchange unit comprises the first high-temperature flue gas entry, first high-temperature flue gas outlet, first low-temperature flue gas entrance and the outlet of the first low-temperature flue gas, described first high-temperature flue gas entry is communicated with described second air-introduced machine, described first high-temperature flue gas outlet is communicated with described cooling device entrance, described first low-temperature flue gas entrance and described cooling device outlet, described first low-temperature flue gas outlet is communicated with described second low-temperature flue gas entrance.
Preferably, the pipeline between described first high-temperature flue gas outlet and described cooling device entrance is provided with desulfurizer.
Preferably, described oxygen-enriched combustion system also comprises tail gas storage device and/or chimney, the outlet of the entrance of described tail gas storage device and/or the entrance of described chimney and described desulfurizer.
Preferably, described oxygen-enriched combustion system also comprises tail gas storage device and/or chimney, the entrance of described tail gas storage device and/or the entrance of described chimney and described first low-temperature flue gas outlet.
Preferably, described note oxygen device group be arranged at described second low-temperature flue gas entrance and described first low-temperature flue gas export between pipeline on, described note oxygen device group comprises the first air-introduced machine and note oxygen device, described note oxygen device comprises note oxygen device portal and the outlet of note oxygen device, the air-introduced machine entrance of described first air-introduced machine and described first low-temperature flue gas outlet, the air-introduced machine outlet of described first air-introduced machine is communicated with described note oxygen device portal, and described note oxygen device outlet is communicated with described second low-temperature flue gas entrance.
Preferably, described oxygen-enriched combustion system also comprises burner, described burner is arranged at described burner hearth entrance, described burner comprises burner outlet, the first burner inlet and the second burner inlet, described burner outlet is communicated with described burner hearth entrance, described first burner inlet and described coal pulverizer outlet, described coal pulverizer inlet and described second low-temperature flue gas outlet, described second burner inlet and described second low-temperature flue gas outlet.
Preferably, described note oxygen device group has two and is set up in parallel, and each described note oxygen device group is communicated with described coal pulverizer inlet with described second burner inlet respectively by described second flue gas heater.
Pass through technique scheme, pipeline between furnace outlet and coal pulverizer inlet arranges flue gas cooling device, by the cooling effect of this flue gas cooling device, the condensation vapor contained in flue gas is formed liquid water droplets, and remove from the pipeline between this furnace outlet and coal pulverizer inlet, thus can prevent from the moisture in flue gas from again entering in burner hearth causing damage to each pipeline of burner hearth and steam generator system.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for description, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the flow chart of the oxygen-enriched combustion system that a kind of detailed description of the invention of the present invention provides;
Fig. 2 is the flow chart of the oxygen-enriched combustion system that the another kind of detailed description of the invention of the present invention provides;
Fig. 3 is the flow chart of the oxygen-enriched combustion system that the another kind of detailed description of the invention of the present invention provides.
Description of reference numerals
1 boiler 11 burner hearth entrance 12 furnace outlet
2 coal pulverizer 21 coal pulverizer inlet 22 coal pulverizer outlets
3 flue gas cooling device 31 cooling device entrance 32 cooling device outlets
4 first flue gas heat-exchange unit 41 first low-temperature flue gas entrance 42 first low-temperature flue gas outlets
43 first high-temperature flue gas entry 44 first high-temperature flue gas export 5 desulfurizers
6 burner 61 first burner inlet 63 second burner inlets
7 second flue gas heat-exchange unit 71 second high-temperature flue gas entry 72 second high-temperature flue gas outlets
73 second low-temperature flue gas entrance 74 second low-temperature flue gas export 8 note oxygen devices
81 note oxygen device portal 82 note oxygen device outlet 9 first air-introduced machines
10 tail gas storage device 13 chimney 14 dust arresters
15 second air-introduced machines
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the sequencer of use, if " first, second " is normally in order to describe the present invention better, can not illustrate that component has dividing of priority primary and secondary.
To achieve these goals, the invention provides a kind of oxygen-enriched combustion system, wherein, this oxygen-enriched combustion system comprises boiler 1 and coal pulverizer 2, the burner hearth entrance 11 of described boiler 1 exports 22 with the coal pulverizer of described coal pulverizer 2 and is communicated with, the furnace outlet 12 of described boiler 1 is communicated with the coal pulverizer inlet 21 of described coal pulverizer 2, the pipeline between described furnace outlet 12 and described coal pulverizer inlet 21 is provided with for the note oxygen device group to described boiler 1 supply oxygen with for making the flue gas cooling device 3 of condensate moisture at least partially in flue gas.
Referring to figs. 1 through Fig. 3, as a kind of preferred detailed description of the invention of the present invention, the flue gas produced in boiler is discharged from furnace outlet and is passed into flue gas cooling device 3, by this flue gas cooling device 3 flue gas carried out cooling and the steam in flue gas is cooled be condensed into aqueous water and discharge from pipeline, dry flue gas discharges and pass through note oxygen device group and add after oxygen also mixes and enter into coal pulverizer 2 from flue gas cooling device 3, participates in combustion reaction after the coal dust in coal pulverizer 2 is transported to burner hearth together with coal dust.Because flue gas has completed the process except moisture before recirculation, thus avoid the damage to burner hearth and boiler pipe of moisture in process recycling, improve the service life of oxygen-enriched combustion system.
In order to improve the utilization rate of the energy further, the flue gas of furnace outlet 12 can be utilized to heat the flue gas participating in recirculation.Continue referring to figs. 1 through Fig. 3, as the another kind of preferred detailed description of the invention of the present invention, described oxygen-enriched combustion system also comprises the second flue gas heat-exchange unit 7, and described second flue gas heat-exchange unit 7 is arranged on the pipeline between described furnace outlet 12 and described burner hearth entrance 11.Particularly, described second flue gas heat-exchange unit 7 comprises the second high-temperature flue gas entry 71, second high-temperature flue gas outlet 72, second low-temperature flue gas entrance 73 and the second low-temperature flue gas outlet 74, described flue gas cooling device 3 comprises cooling device entrance 31 and cooling device outlet 32, described second high-temperature flue gas entry 71 is communicated with described furnace outlet 12, described second high-temperature flue gas outlet 72 is communicated with described cooling device entrance 31, described cooling device outlet 32 is communicated with described second low-temperature flue gas entrance 73, described second low-temperature flue gas outlet 74 is communicated with described burner hearth entrance 11 by two pipelines.
Due to the cooling effect of flue gas cooling device 3, make flue-gas temperature there is larger difference before entering flue gas cooling device 3 and after flue gas cooling device 3, therefore can the second flue gas heat-exchange unit 7 be set on the pipeline of furnace outlet 12, and be set to the second high-temperature flue gas outlet and 72 be communicated with cooling device entrance 31, cooling device outlet 32 is communicated with the second low-temperature flue gas entrance 73, therefore in the second flue gas heat-exchange unit 7, high-temperature flue gas can carry out preheating to low-temperature flue gas, improves the utilization rate of the energy.
In order to make tail gas smooth outflow in pipeline, continue referring to figs. 1 through Fig. 3, as a kind of preferred detailed description of the invention of the present invention, the pipeline that second high-temperature flue gas outlet 72 is communicated with cooling device entrance 31 is provided with dust arrester 14 and the second air-introduced machine 15, and dust arrester 14, second air-introduced machine 15 and flue gas cooling device 3 are communicated with successively.Flue gas can make the particulate contamination in flue gas remove after dust arrester 14, prevents this particulate contamination to be discharged in air and pollutes air, and the second air-introduced machine 15 provides power for the flue gas flowed in pipeline, thus makes the flowing of flue gas more smooth and easy.
Continue referring to figs. 1 through Fig. 3, as the another kind of preferred detailed description of the invention of the present invention, oxygen-enriched combustion system also comprises the first flue gas heat-exchange unit 4, first flue gas heat-exchange unit 4 is arranged on the pipeline that the second air-introduced machine 15 is communicated with the second low-temperature flue gas entrance 73, and the first flue gas heat-exchange unit 4 comprises first high-temperature flue gas entry 43, first high-temperature flue gas outlet the 44, first low-temperature flue gas entrance 41 and the first low-temperature flue gas outlet 42.Particularly, first high-temperature flue gas entry 43 is communicated with the second air-introduced machine 15, first high-temperature flue gas outlet 44 is communicated with cooling device entrance 31, and the first low-temperature flue gas entrance 41 and cooling device export 32 and be communicated with, and the first low-temperature flue gas outlet 42 is communicated with the second low-temperature flue gas entrance 73.
First flue gas heat-exchange unit 4 is similar with the effect of the second above-mentioned flue gas heat-exchange unit 7, be all use the flue gas before entering flue gas cooling device 3 to carry out heating for the flue gas after flue gas cooling device 3, to prevent, flue-gas temperature is too low causes cold end corrosion to oxygen-enriched combustion system pipeline.
In order to prevent flue gas from forming pollution to air, continuing referring to figs. 1 through Fig. 3, as the preferred detailed description of the invention of one, the pipeline between the first high-temperature flue gas outlet 44 and cooling device entrance 31 being provided with desulfurizer 5.
With reference to Fig. 3, as the another kind of preferred detailed description of the invention of the present invention, oxygen-enriched combustion system also comprises tail gas storage device 10 and/or chimney 13, the outlet of the entrance of tail gas storage device 10 and/or the entrance of chimney 13 and desulfurizer 5.After dust arrester 14 and desulfurizer 5 pairs of flue gases process, flue gas can be discharged in air through chimney 13, also can enter into tail gas storage device 10 and store.Tail gas storage device 10 and/or chimney 13 are arranged at the exit of desulfurizer 5, flue gas that needs carry out recycling can be made through flue gas cooling device 3, do not need the flue gas participating in recirculation then without the need to through flue gas cooling device 3, reduce the size of flue gas cooling device 3, thus reduce production cost.
See figures.1.and.2, as a kind of preferred detailed description of the invention of the present invention, oxygen-enriched combustion system also comprises tail gas storage device 10 and/or chimney 13, and the entrance of tail gas storage device 10 and/or the entrance of chimney 13 export 42 with the first low-temperature flue gas and be communicated with.After dust arrester 14 and desulfurizer 5 pairs of flue gases process, flue gas can be discharged in air through chimney 13, also can enter into tail gas storage device 10 and store.
Referring to figs. 1 through Fig. 3, as the preferred detailed description of the invention of one, note oxygen device group is arranged at the second low-temperature flue gas entrance 73 and the first low-temperature flue gas exports on the pipeline between 42, note oxygen device group comprises the first air-introduced machine 9 and note oxygen device 8, note oxygen device 8 comprises note oxygen device portal 81 and note oxygen device outlet 82, air-introduced machine entrance and first low-temperature flue gas of the first air-introduced machine 9 export 42 and are communicated with, the air-introduced machine outlet of the first air-introduced machine 9 is communicated with described note oxygen device portal 81, and note oxygen device outlet 82 is communicated with the second low-temperature flue gas entrance 73.Flue gas, after the first low-temperature flue gas outlet 42, enters in note oxygen device 8 under the driving effect of the first air-introduced machine 9, with oxygen mix in note oxygen device 8, such as but not limited to, the note oxygen ratio in note oxygen device 8 can be 21%-26%.
Referring to figs. 1 through Fig. 3, as the another kind of preferred detailed description of the invention of the present invention, oxygen-enriched combustion system also comprises burner 6, burner 6 is arranged at burner hearth entrance 11, burner 6 comprises burner outlet, the first burner inlet 61 and the second burner inlet 63, and burner outlet is communicated with burner hearth entrance 11, and the first burner inlet 61 and coal pulverizer export 22 and be communicated with, coal pulverizer inlet 21 and the second low-temperature flue gas export 74 and are communicated with, and the second burner inlet 63 and the second low-temperature flue gas export 74 and be communicated with.Flue gas after the second flue gas heat-exchange unit 7 heats is discharged from the second low-temperature flue gas outlet 74 and is divided into two pipelines, first pipeline can be provided with coal pulverizer 2, and flue gas flows in this first pipeline and coal dust is transported in the first burner inlet 61 by pumped (conveying) medium as coal dust; Second low-temperature flue gas outlet 74 directly can be communicated with the second burner inlet 63 by the second pipeline.The flue gas being mixed with oxygen and the flue gas being mixed with coal dust fully mix and participate in combustion reaction after burner 6 in burner hearth.Burner 6 can have various ways, such as but not limited to, the DC burner that quadrangle tangential circle is arranged can be adopted, also can adopt the turbulent burner liquidating and arrange.
With reference to figure 1, as a kind of preferred detailed description of the invention of the present invention, note oxygen device group has two and is set up in parallel, and each note oxygen device group is communicated with coal pulverizer inlet 21 with the second burner inlet 63 respectively by the second flue gas heater 7.Particularly, note oxygen device group is arranged at the second low-temperature flue gas entrance 73 and the first low-temperature flue gas exports on the pipeline between 42, and this note oxygen device group has two, a note oxygen device group is communicated with coal pulverizer inlet 21 by the first pipeline, and another note oxygen device group is communicated with the second burner inlet 63 by the second pipeline.In order to give the flue gas in two pipelines, respectively the second flue gas heat-exchange unit 7 can be set on the first pipeline and the second pipeline.Note oxygen ratio on first pipeline and the second pipeline can control respectively, such as but not limited to, the first pipeline being noted oxygen ratio is 10%-20%, and the note oxygen ratio on the second pipeline is 25%-35%.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible combination.
In addition, also can be combined between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. an oxygen-enriched combustion system, it is characterized in that, this oxygen-enriched combustion system comprises boiler (1) and coal pulverizer (2), the burner hearth entrance (11) of described boiler (1) exports (22) with the coal pulverizer of described coal pulverizer (2) and is communicated with, the furnace outlet (12) of described boiler (1) is communicated with the coal pulverizer inlet (21) of described coal pulverizer (2), pipeline between described furnace outlet (12) and described coal pulverizer inlet (21) is provided with for the note oxygen device group to described boiler (1) supply oxygen with for making the flue gas cooling device (3) of condensate moisture at least partially in flue gas.
2. oxygen-enriched combustion system according to claim 1, it is characterized in that, described oxygen-enriched combustion system also comprises the second flue gas heat-exchange unit (7), described second flue gas heat-exchange unit (7) is arranged on the pipeline between described furnace outlet (12) and described burner hearth entrance (11), described second flue gas heat-exchange unit (7) comprises the second high-temperature flue gas entry (71), second high-temperature flue gas outlet (72), second low-temperature flue gas entrance (73) and the second low-temperature flue gas outlet (74), described flue gas cooling device (3) comprises cooling device entrance (31) and cooling device outlet (32), described second high-temperature flue gas entry (71) is communicated with described furnace outlet (12), described second high-temperature flue gas outlet (72) is communicated with described cooling device entrance (31), described cooling device outlet (32) is communicated with described second low-temperature flue gas entrance (73), described second low-temperature flue gas outlet (74) is communicated with described burner hearth entrance (11) by two pipelines.
3. oxygen-enriched combustion system according to claim 2, it is characterized in that, the pipeline that described second high-temperature flue gas outlet (72) is communicated with described cooling device entrance (31) is provided with dust arrester (14) and the second air-introduced machine (15), and described dust arrester (14), described second air-introduced machine (15) and described flue gas cooling device (3) are communicated with successively.
4. oxygen-enriched combustion system according to claim 3, it is characterized in that, described oxygen-enriched combustion system also comprises the first flue gas heat-exchange unit (4), described first flue gas heat-exchange unit (4) is arranged on the pipeline that described second air-introduced machine (15) is communicated with described second low-temperature flue gas entrance (73), described first flue gas heat-exchange unit (4) comprises the first high-temperature flue gas entry (43), first high-temperature flue gas outlet (44), first low-temperature flue gas entrance (41) and the first low-temperature flue gas outlet (42), described first high-temperature flue gas entry (43) is communicated with described second air-introduced machine (15), described first high-temperature flue gas outlet (44) is communicated with described cooling device entrance (31), described first low-temperature flue gas entrance (41) exports (32) and is communicated with described cooling device, described first low-temperature flue gas outlet (42) is communicated with described second low-temperature flue gas entrance (73).
5. oxygen-enriched combustion system according to claim 4, is characterized in that, the pipeline between described first high-temperature flue gas outlet (44) and described cooling device entrance (31) is provided with desulfurizer (5).
6. oxygen-enriched combustion system according to claim 5, it is characterized in that, described oxygen-enriched combustion system also comprises tail gas storage device (10) and/or chimney (13), the outlet of the entrance of described tail gas storage device (10) and/or the entrance of described chimney (13) and described desulfurizer (5).
7. oxygen-enriched combustion system according to claim 4, it is characterized in that, described oxygen-enriched combustion system also comprises tail gas storage device (10) and/or chimney 13, and the described entrance of tail gas storage device (10) and/or the entrance of chimney 13 export (42) with described first low-temperature flue gas and be communicated with.
8. oxygen-enriched combustion system according to claim 4, it is characterized in that, described note oxygen device group is arranged at described second low-temperature flue gas entrance (73) and described first low-temperature flue gas exports on the pipeline between (42), described note oxygen device group comprises the first air-introduced machine (9) and note oxygen device (8), described note oxygen device (8) comprises note oxygen device portal (81) and note oxygen device outlet (82), the air-introduced machine entrance of described first air-introduced machine (9) exports (42) with described first low-temperature flue gas and is communicated with, the air-introduced machine outlet of described first air-introduced machine (9) is communicated with described note oxygen device portal (81), described note oxygen device outlet (82) is communicated with described second low-temperature flue gas entrance (73).
9. oxygen-enriched combustion system according to claim 2, it is characterized in that, described oxygen-enriched combustion system also comprises burner (6), described burner (6) is arranged at described burner hearth entrance (11), described burner (6) comprises burner outlet, first burner inlet (61) and the second burner inlet (63), described burner outlet is communicated with described burner hearth entrance (11), described first burner inlet (61) exports (22) and is communicated with described coal pulverizer, described coal pulverizer inlet (21) exports (74) with described second low-temperature flue gas and is communicated with, described second burner inlet (63) exports (74) with described second low-temperature flue gas and is communicated with.
10. oxygen-enriched combustion system according to claim 9, it is characterized in that, described note oxygen device group has two and is set up in parallel, and each described note oxygen device group is communicated with described coal pulverizer inlet (21) with described second burner inlet (63) respectively by described second flue gas heater (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610041452.3A CN105509089A (en) | 2016-01-21 | 2016-01-21 | Oxygen-enriched combustion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610041452.3A CN105509089A (en) | 2016-01-21 | 2016-01-21 | Oxygen-enriched combustion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105509089A true CN105509089A (en) | 2016-04-20 |
Family
ID=55717261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610041452.3A Pending CN105509089A (en) | 2016-01-21 | 2016-01-21 | Oxygen-enriched combustion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105509089A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040185406A1 (en) * | 2003-03-22 | 2004-09-23 | Neary David Lloyd | Partially-open fired heater cycle providing high thermal efficiencies and ultra-low emissions |
| CN105114945A (en) * | 2015-09-29 | 2015-12-02 | 中国神华能源股份有限公司 | Boiler system and flue gas and air system thereof |
| CN105157020A (en) * | 2015-09-25 | 2015-12-16 | 中国神华能源股份有限公司 | Oxygen-enriched combustion system and method |
| CN105180205A (en) * | 2015-08-14 | 2015-12-23 | 中国神华能源股份有限公司 | Control method for oxygen-enriched combustion smoke circulation system |
| CN205299590U (en) * | 2016-01-21 | 2016-06-08 | 中国神华能源股份有限公司 | Oxygen -enriched combustion system |
-
2016
- 2016-01-21 CN CN201610041452.3A patent/CN105509089A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040185406A1 (en) * | 2003-03-22 | 2004-09-23 | Neary David Lloyd | Partially-open fired heater cycle providing high thermal efficiencies and ultra-low emissions |
| CN105180205A (en) * | 2015-08-14 | 2015-12-23 | 中国神华能源股份有限公司 | Control method for oxygen-enriched combustion smoke circulation system |
| CN105157020A (en) * | 2015-09-25 | 2015-12-16 | 中国神华能源股份有限公司 | Oxygen-enriched combustion system and method |
| CN105114945A (en) * | 2015-09-29 | 2015-12-02 | 中国神华能源股份有限公司 | Boiler system and flue gas and air system thereof |
| CN205299590U (en) * | 2016-01-21 | 2016-06-08 | 中国神华能源股份有限公司 | Oxygen -enriched combustion system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103615713B (en) | A kind of coal dust oxygen enrichment flameless combustion process and system thereof | |
| CN103062745B (en) | Water vapor circularly adjusting type oxygen-enriched combustion method for pulverized coal boiler | |
| CN103953921B (en) | Oxygen-enriched combustion boiler system and operation method thereof | |
| JP4644725B2 (en) | Oxy-combustion boiler system, pulverized-coal-fired boiler remodeling method, oxy-combustion boiler system control device | |
| CN203823745U (en) | Oxygen-enriched combustion boiler system | |
| CN103363811A (en) | Combustion method of high-temperature oxygen-mixed flue gas | |
| CN103017151B (en) | Oxygen-enriched combustion W-shaped flame boiler system and combustion process thereof | |
| CN102853654A (en) | Air distribution process and air distribution system for rotary kiln | |
| CN105157054A (en) | Oxy-fuel combustion oxidant heater internal arrangement | |
| CN103331026A (en) | Automatic inertia type spray drying system | |
| CN103868055A (en) | Regenerative combustion device applicable to stable combustion of compounded tangent-flow and direct-flow gas with low calorific value | |
| CN206890551U (en) | A kind of lignite burning utilizes system | |
| CN103320561A (en) | Hot-blast stove system for high air temperature by using pure blast furnace gas and method thereof | |
| CN102927795B (en) | System and method for drying brown coal indirectly in roller mode by flue gas | |
| CN101413674A (en) | Oxygen-enriched air mixed blowing combustion adjuvant boiler energy-saving method and employed equipment thereof | |
| CN104492229A (en) | Pithead power plant low-cost carbon dioxide trapping system and pithead power plant low-cost carbon dioxide trapping method | |
| CN205299590U (en) | Oxygen -enriched combustion system | |
| CN203744238U (en) | Tangential and direct flows combined combustion stabilizing and heat storage combusting device suitable for low-calorific-value fuel gas | |
| CN105509037A (en) | Flue gas and air system for oxygen-enriched combustion and boiler system | |
| CN105509089A (en) | Oxygen-enriched combustion system | |
| CN104896501B (en) | The low NO of a kind of coal dust xoxygen-enriched burning device | |
| CN205897119U (en) | High -efficient gas recirculation oxygen boosting combustion system | |
| CN205208599U (en) | Residual heat from flue gas system and oxygen boosting burning boiler of oxygen boosting burning boiler | |
| CN104132364A (en) | Open powder making steam warm air type boiler unit and power generation system thereof | |
| CN201396776Y (en) | Oxygen-enriched air mixed-blowing combustion improver boiler energy-saving device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20160420 |