CN101788147B - Gas and combustion air mixing device of combustion system - Google Patents
Gas and combustion air mixing device of combustion system Download PDFInfo
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- CN101788147B CN101788147B CN2010101105623A CN201010110562A CN101788147B CN 101788147 B CN101788147 B CN 101788147B CN 2010101105623 A CN2010101105623 A CN 2010101105623A CN 201010110562 A CN201010110562 A CN 201010110562A CN 101788147 B CN101788147 B CN 101788147B
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- Prior art keywords
- oxygen
- combustion
- gas
- combustion gas
- mixing arrangement
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 51
- 238000002156 mixing Methods 0.000 title claims abstract description 44
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 100
- 239000001301 oxygen Substances 0.000 claims abstract description 100
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 100
- 239000007789 gas Substances 0.000 claims abstract description 38
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 238000010992 reflux Methods 0.000 claims abstract description 4
- 239000000567 combustion gas Substances 0.000 claims description 50
- 239000012530 fluid Substances 0.000 claims description 9
- 238000012360 testing method Methods 0.000 claims description 8
- 238000005485 electric heating Methods 0.000 claims description 5
- 239000008246 gaseous mixture Substances 0.000 claims description 5
- 239000010865 sewage Substances 0.000 claims description 5
- 239000003595 mist Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 239000002912 waste gas Substances 0.000 claims description 3
- 238000002309 gasification Methods 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 4
- 239000003546 flue gas Substances 0.000 abstract 4
- 238000005507 spraying Methods 0.000 abstract 2
- 238000001802 infusion Methods 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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Classifications
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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
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Abstract
The invention relates to a mixture device of gas and combustion air in a combustion system, comprising a main body bin loaded with heat-conducting medium, the main body bin is internally provided with an oxygen gasification mixing bin used for mixing oxygen and flue gas, the interior of the oxygen gasification mixing bin is communicated with a flue gas spraying pipe, the flue gas spraying pipe is externally a flue gas flow control device, one end of the oxygen gasification mixing bin is communicated with a mixed gas output pipeline, and the other end is communicated with a non-return tube which is used for preventing the mixed gas reflux from being formed into pressure to stop oxygen infusion, and the non-return tube is externally connected with an oxygen-rich flow control device. The invention has reasonable structure design and low price and is energy-saving and pollution-reducing, efficient and environmentally friendly.
Description
Technical field
The present invention relates to the combustion gas of combustion system and the mixing arrangement of combustion air, belong to the mixing arrangement technical field of structures of combustion gas and combustion air in the combustion system.
Background technology
At present, the direct air feed of combustion gas that adopt do not add any combustion-supporting gas more in the existing combustion system, will certainly cause fuel gas buring insufficient like this, and flame propagation velocity is slow, and ignition temperature is low, does not reach the purpose of energy-conserving and environment-protective.
Summary of the invention
The objective of the invention is to solve the weak point that above-mentioned prior art exists, a kind of reasonable in design is provided, energy-saving and emission-reduction, the combustion gas of high-efficiency environment friendly, low emission and the mixing arrangement of combustion air.
The present invention realizes through following technical scheme:
The combustion gas of combustion system and the mixing arrangement of combustion air; Its special character is to comprise the main body storehouse 1 that carries heat-conducting medium 5; The oxygen gasified mixing bunker 2 that is used for mixture of oxygen and combustion gas is installed in the main body storehouse 1; Oxygen gasified mixing bunker 2 inside are connected with the combustion gas jet pipe 4 that looses, the combustion gas jet pipe 4 external gas flow control devices that loose, and an end of oxygen gasified mixing bunker 2 is communicated with mixture output tube road 26; One end is communicated with the non-return trunnion 20 that is used to prevent that mist from refluxing and forming pressure, stop oxygen feeding amount, non-return trunnion 20 external oxygen-rich stream amount control devices;
Said gas flow control device comprises the main air supply pipe 24 that communicates with the diffusing jet pipe 4 of combustion gas; Main air supply pipe 24 inside are equipped with the main gas control system magnetic valve 6 that is used to control the combustion gas inlet, and main gas control system magnetic valve 6 and combustion gas are loose and between the jet pipe 4 return valve 7 that is used to prevent gas backstreaming be installed;
For still can normal ventilation when main air supply pipe 24 faults, be connected with secondary air supply pipe 21 on the sidewall of said main air supply pipe 24;
Said oxygen-rich stream amount control device comprises the oxygen enrichment interface 18 that is used for oxygen intake; Oxygen enrichment interface 18 is connected with the oxygen enrichment fifth wheel 23 that is used to test oxygen flow speed, the best oxygen-enriched combusting gas of allotment; Be provided with oxygen enrichment pipeline 25 between oxygen enrichment interface 18 and the non-return trunnion 20, oxygen enrichment pipeline 25 inside are provided with survey wind speed wheel 16, the oxygen enrichment wind control valve 9 that is used to test flowing velocity and allotment The Best Mixed ratio, the check-valves 8 that prevents gas backstreaming;
Be equipped with on the said oxygen enrichment interface 18 and be used for sending oxygen blower fan 17 what oxygen was transported to oxygen gasified mixing bunker 2;
Gaseous mixture output control valve 10 is installed in the said mixture output tube road 26;
The electric heating tube 3 that is used to heat heat-conducting medium 5 is installed in the said main body storehouse 1;
Said dielectric fluid adds hole 13 and is connected with the high low level scale 22 of medium that is used to guarantee liquid consumption;
The Pressure gauge 19 that is used for detected pressures is installed between said mixture output tube road 26 and the micro computer operation board 14.
The combustion gas of combustion system of the present invention and the mixing arrangement of combustion air; Combustion gas is fully mixed with oxygen, thereby can effectively drive away the inert gas (nitrogen content) in the combustion gas, improved flame transmission speed greatly; Ignition temperature improves greatly, reaches the purpose of energy-saving and emission-reduction, high-efficiency environment friendly.
Description of drawings
Fig. 1: the mixing arrangement structural representation of the combustion gas of combustion system of the present invention and combustion air;
Among the figure: 1, main body storehouse, 2, oxygen gasified mixing bunker, 3, electric heating tube, 4, the combustion gas jet pipe that looses, 5, heat-conducting medium, 6, main gas control system magnetic valve; 7, check-valves, 8, check-valves, 9, oxygen enrichment wind control valve, 10, gaseous mixture output control valve, 11, sewage draining exit; 12, exhaust-valve, 13, dielectric fluid adds the hole, 14, the microcomputerized control dish, 15, the temperature controller sensor, 16, fifth wheel; 17, send the oxygen blower fan, 18, the oxygen enrichment interface, 19, Pressure gauge, 20, the non-return trunnion, 21, secondary air supply pipe; 22, the high status of medium scale, 23, the oxygen enrichment fifth wheel, 24, main air supply pipe, 25, the oxygen enrichment pipeline, 26, the mixture output tube road.
The specific embodiment
Provide the specific embodiment of the present invention below with reference to accompanying drawing, be used for formation of the present invention is done further explanation.
The combustion gas of present embodiment combustion system and the mixing arrangement of combustion air; Comprise the main body storehouse 1 that carries heat-conducting medium 5; The oxygen gasified mixing bunker 2 that is used for mixture of oxygen and combustion gas is installed in the main body storehouse 1; Oxygen gasified mixing bunker 2 inside are connected with the combustion gas jet pipe 4 that looses, the combustion gas jet pipe 4 external gas flow control devices that loose, and an end of oxygen gasified mixing bunker 2 is communicated with mixture output tube road 26; One end is communicated with the non-return trunnion 20 that is used to prevent that mist from refluxing and forming pressure, stop oxygen feeding amount, non-return trunnion 20 external oxygen-rich stream amount control devices; Gas flow control device comprises the main air supply pipe 24 that communicates with the diffusing jet pipe 4 of combustion gas; Main air supply pipe 24 inside are equipped with the main gas control system magnetic valve 6 that is used to control the combustion gas inlet, and main gas control system magnetic valve 6 and combustion gas are loose and between the jet pipe 4 return valve 7 that is used to prevent gas backstreaming be installed; For still can normal ventilation when main air supply pipe 24 faults, be connected with secondary air supply pipe on the sidewall of main air supply pipe 24; The oxygen-rich stream amount control device comprises the oxygen enrichment interface 18 that is used for oxygen intake; Oxygen enrichment interface 18 is connected with the oxygen enrichment fifth wheel 23 that is used to test oxygen flow speed, the best oxygen-enriched combusting gas of allotment; Be provided with oxygen enrichment pipeline 25 between oxygen enrichment interface 18 and the non-return trunnion 20, oxygen enrichment pipeline 25 inside are provided with survey wind speed wheel 16, the oxygen enrichment wind control valve 9 that is used to test flowing velocity and allotment The Best Mixed ratio, the check-valves 8 that prevents gas backstreaming; Be equipped with on the oxygen enrichment interface 18 and be used for sending oxygen blower fan 17 what oxygen was transported to oxygen gasified mixing bunker 2; Gaseous mixture output control valve 10 is installed in the mixture output tube road 26; The electric heating tube 3 that is used to heat heat-conducting medium 5 is installed in the main body storehouse 1; Temperature controller sensor 15, the sewage draining exit 11 that is used to discharge dirt in the storehouse, the exhaust-valve 12 that is used to discharge waste gas in the storehouse that is used to control temperature difference of height distance, dielectric fluid interpolation hole 13, the micro computer operation board 14 that is used to add heat-conducting medium are installed on the main body storehouse 1; Dielectric fluid adds hole 13 and is connected with the high low level scale 22 of medium that is used to guarantee liquid consumption; The Pressure gauge 19 that is used for detected pressures is installed between mixture output tube road 26 and the micro computer operation board 14.
The effect of each parts in the combustion gas of combustion system and the mixing arrangement of combustion air:
1. main body storehouse: carry heat-conducting medium, make and flow through oxygen in oxygen gasified mixing bunker 2 warehouses and gasify with combustion gas mixing, integral body is heated evenly.
2. oxygen gasified mixing bunker: oxygen mixes output burning by main body storehouse 1 heating and gasifying with combustion gas in the storehouse.To reach sufficient combustion, reduce effects such as carbon discharge capacity.
3. electric heating tube: the heating heat-conducting medium, make gas vaporization, cooperate the automatic adjustment high and low temperature of temperature controller.
4. the combustion gas jet pipe that looses: the whole air-flow that combustion gas is responsible for get into disperses ejection, and oxygen is fully mixed with combustion gas, is heated gasification soon.Sufficient combustion is stable.
5. heat-conducting medium: transmit thermal energy and guarantee that heat conduction is balanced, keep holding the temperature time.
6. main gas control system magnetic valve: balanced flow, controlled pressure.
7. check-valves: prevent gas backstreaming, guarantee handling safety.
8. check-valves: prevent gas backstreaming, guarantee handling safety.
9. oxygen enrichment wind control valve: control body small-large flow makes to be mixed into direct ratio.
10. gaseous mixture is exported control valve: control output small-large flow, adjustment pressure.Make terminal burning shower nozzle adapted kind wider.
11. sewage draining exit: get rid of dirt in the storehouse, keep the heat-conducting medium cleaning.
12. exhaust-valve: take gas in the tank evacuation, convenient and safe when guaranteeing to overhaul.
13. dielectric fluid adds the hole: add heat-conducting medium and safeguard normal heat conduction.
14. micro computer operation board: the control of interface smart circuit, comprise that temperature shows, custom is regulated, pressure detecting, human-computer interaction reaches intelligence and can operate.
15. temperature controller sensor: control temperature difference of height distance, balance requires serviceability temperature, sensitive mail message full-automatic regulation.
16. survey the wind speed wheel: test flowing velocity, allotment The Best Mixed ratio.
17. send the oxygen blower fan: be transported to mixing bunker to oxygen, and increase pressure.
18. oxygen enrichment interface: oxygen intake, by the blower fan pressurization, the input mixing bunker.
19. Pressure gauge: detected pressures guarantees safety.
20. non-return trunnion: prevent that the mist backflow from forming pressure, stops oxygen feeding amount.
21. secondary supply air line: operate as normal when preventing to be responsible for fault.
22. the high low level scale of medium: guarantee the media fluid use amount, be convenient to add maintenance.
23. oxygen enrichment fifth wheel: test oxygen flow speed, allocate best oxygen-enriched combusting gas.
The combustion gas of present embodiment combustion system and the mixing arrangement of combustion air have following characteristics:
1, the equivalent oxygen that adopts the oxygen enrichment principle in air, to sneak into optimal combustion state becomes the oxygen-rich mixture body.Oxygen rich gas is sneaked into (liquefied gas, natural gas, coal gas) formation oxygen-rich mixture body in the combustion fuel, and oxygen rich fuel gas gas can effectively improve flame temperature in combustion gas.When the oxygen content in the combustion air reaches 25% concentration; Flame propagation velocity is accelerated; Improve flame temperature, oxygen concentration was 4100 ℃ of 1800 ℃, natural gas burning flame temperature 25% o'clock flame temperature when data showed the town gas burning, and can effectively reduce discharging and make NO, CO, CO
2Reduce Deng dusty gas.
2, adopt the high-temperature gasification principle, reach energy-saving and emission-reduction, high-efficiency environment friendly effect to gas gasification and the abundant combined drive of oxygen-enriched air except that the inert gas (nitrogen content) in the combustion gas so flame propagation velocity increases with the ignition temperature raising.
The combustion gas of present embodiment combustion system and the mixing arrangement of combustion air; Adopt high-tech (energy-saving and emission-reduction, the high-efficiency environment friendly) product of two kinds of fuel gas buring principles developments of oxygen rich fuel gas and high-temperature gasification burning be widely used in, large scale industry gas high-temperature stove.Like industrial furnaces such as (glass furnace furnace, drying ovens), experiment proof fractional energy savings is at 20%-40%.
Claims (10)
1. the mixing arrangement of the combustion gas of combustion system and combustion air; It is characterized in that comprising the main body storehouse (1) that carries heat-conducting medium (5); The oxygen gasified mixing bunker (2) that is used for mixture of oxygen and combustion gas is installed in the main body storehouse (1); Oxygen gasified mixing bunker (2) inside is connected with the combustion gas jet pipe (4) that looses, the combustion gas external gas flow control device of jet pipe (4) that looses, and an end of oxygen gasified mixing bunker (2) is communicated with mixture output tube road (26); One end is communicated with the non-return trunnion (20) that is used to prevent that mist from refluxing and forming pressure, stop oxygen feeding amount, the external oxygen-rich stream amount control device of non-return trunnion (20).
2. according to the combustion gas of the said combustion system of claim 1 and the mixing arrangement of combustion air; It is characterized in that said gas flow control device comprises the main air supply pipe (24) that communicates with the diffusing jet pipe (4) of combustion gas; Main air supply pipe (24) inside is equipped with the main gas control system magnetic valve (6) that is used to control the combustion gas inlet, and main gas control system magnetic valve (6) and combustion gas are loose and between the jet pipe (4) return valve (7) that is used to prevent gas backstreaming be installed.
3. according to the combustion gas of the said combustion system of claim 2 and the mixing arrangement of combustion air, it is characterized in that being connected with secondary air supply pipe (21) on the sidewall of said main air supply pipe (24).
4. according to the combustion gas of the said combustion system of claim 1 and the mixing arrangement of combustion air; It is characterized in that said oxygen-rich stream amount control device comprises the oxygen enrichment interface (18) that is used for oxygen intake; Oxygen enrichment interface (18) is connected with the oxygen enrichment fifth wheel (23) that is used to test oxygen flow speed, the best oxygen-enriched combusting gas of allotment; Be provided with oxygen enrichment pipeline (25) between oxygen enrichment interface (18) and the non-return trunnion (20), oxygen enrichment pipeline (25) inside is provided with survey wind speed wheel (16), the oxygen enrichment wind control valve (9) that is used to test flowing velocity and allotment The Best Mixed ratio, the check-valves (8) that prevents gas backstreaming.
5. according to the combustion gas of the said combustion system of claim 4 and the mixing arrangement of combustion air, it is characterized in that being equipped with on the said oxygen enrichment interface (18) and be used for sending oxygen blower fan (17) what oxygen was transported to oxygen gasified mixing bunker (2).
6. according to the combustion gas of the said combustion system of claim 1 and the mixing arrangement of combustion air, it is characterized in that being equipped with in the said mixture output tube road (26) gaseous mixture output control valve (10).
7. according to the combustion gas of the said combustion system of claim 1 and the mixing arrangement of combustion air, it is characterized in that being equipped with in the said main body storehouse (1) electric heating tube (3) that is used to heat heat-conducting medium (5).
8. according to the combustion gas of the said combustion system of claim 1 and the mixing arrangement of combustion air, it is characterized in that being equipped with on the said main body storehouse (1) temperature controller sensor (15), the sewage draining exit (11) that is used to discharge dirt in the storehouse, the exhaust-valve (12) that is used to discharge waste gas in the storehouse that is used to control temperature difference of height distance, dielectric fluid interpolation hole (13), the micro computer operation board (14) that is used to add heat-conducting medium.
9. according to the combustion gas of the said combustion system of claim 8 and the mixing arrangement of combustion air, it is characterized in that said dielectric fluid adds hole (13) and is connected with the high low level scale of medium (22) that is used to guarantee liquid consumption.
10. according to the combustion gas of the said combustion system of claim 1 and the mixing arrangement of combustion air, it is characterized in that being equipped with between said mixture output tube road (26) and the micro computer operation board (14) Pressure gauge (19) that is used for detected pressures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101105623A CN101788147B (en) | 2010-02-09 | 2010-02-09 | Gas and combustion air mixing device of combustion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101105623A CN101788147B (en) | 2010-02-09 | 2010-02-09 | Gas and combustion air mixing device of combustion system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101788147A CN101788147A (en) | 2010-07-28 |
| CN101788147B true CN101788147B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101105623A Expired - Fee Related CN101788147B (en) | 2010-02-09 | 2010-02-09 | Gas and combustion air mixing device of combustion system |
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| Country | Link |
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| CN (1) | CN101788147B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2254191A1 (en) * | 1997-12-02 | 1999-06-02 | Dominique Robillard | Oxy-fuel burner |
| JP2007255424A (en) * | 2006-03-24 | 2007-10-04 | General Electric Co <Ge> | System and method for reducing discharge of nox from gas turbine system and internal combustion engine |
| CN201155782Y (en) * | 2008-01-09 | 2008-11-26 | 朱长明 | Oxygen-enriched high efficiency combustion supporting regulating device |
-
2010
- 2010-02-09 CN CN2010101105623A patent/CN101788147B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2254191A1 (en) * | 1997-12-02 | 1999-06-02 | Dominique Robillard | Oxy-fuel burner |
| EP0921350A1 (en) * | 1997-12-02 | 1999-06-09 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Oxy-fuel burner |
| JP2007255424A (en) * | 2006-03-24 | 2007-10-04 | General Electric Co <Ge> | System and method for reducing discharge of nox from gas turbine system and internal combustion engine |
| CN201155782Y (en) * | 2008-01-09 | 2008-11-26 | 朱长明 | Oxygen-enriched high efficiency combustion supporting regulating device |
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| CN101788147A (en) | 2010-07-28 |
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