CN101430089B - Low-temperature initiation means of catalyst combustion device - Google Patents
Low-temperature initiation means of catalyst combustion device Download PDFInfo
- Publication number
- CN101430089B CN101430089B CN200710036044XA CN200710036044A CN101430089B CN 101430089 B CN101430089 B CN 101430089B CN 200710036044X A CN200710036044X A CN 200710036044XA CN 200710036044 A CN200710036044 A CN 200710036044A CN 101430089 B CN101430089 B CN 101430089B
- Authority
- CN
- China
- Prior art keywords
- heat storage
- combustion
- catalytic
- gas
- supply pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The invention relates to a catalytic combustion low-temperature initiation device which integrates the advantages of planar combustion, air preheating combustion and honeycomb heat storage. The catalytic combustion low-temperature initiation device comprises two sets of heat storage burners and air-flue gas four-way reversing valves with the same structure and the compact arrangement, each heat storage burner comprises a pressure stabilizing chamber, a honeycomb heat storage body, a honeycomb catalyst body, a normally open igniter, a gas quick switch valve and a quartz air supply pipe, wherein, the heat storage body is arranged on the pressure stabilizing chamber, the specific surface area is more than 800m<2>/m<3>, the catalyst body is arranged on the heat storage body, the outlet end ofthe air supply pipe is 15-20mm higher than the catalyst body and is arranged on the perpendicular bisector of the catalyst body, and the igniter is arranged between the air supply pipe and the catalyst body. Each heat storage burner carries out the cyclical combustion and the cooling of flue gas by the frequency of 1/(15-50). The catalytic combustion low-temperature initiation device can burn anduse gas with low calorific value and complete the initiation operation within 60min, thereby being economic, safe, stable and simple and convenient; and the temperature of the catalyst body is uniform and easy to control. The catalytic combustion low-temperature initiation device is applicable to reverse flow catalytic reactors, catalytic combustion boilers, gas turbines or furnaces.
Description
Technical field the present invention relates to a kind of based on the burning of non-premixed combustion, plane, air preheat burning and honeycomb regenerator principle, simple, convenient, economic and catalytic combustion low-temperature initiation means efficiently.Be applicable to flow-reversal type catalytic reactor, use the various civilian and Industrial Catalysis burning boiler of oil liquefied gas, natural gas or artificial fuel gas, thermal power generation, gas turbine or High-temp. kiln use.
The background technology catalytic combustion is a kind of heat energy supply approach of clean and effective, meets China's medium-term and long-term plans low emission, the requirement of high efficiency growth pattern.The research and development catalytic combustion technology can large-scale promotion popularization and application gas fuel, improves China's atmosphere pollution situation, improves China's energy resource structure.
Catalyst is applied to combustion field need solve economical and convenient ignition problem.2006 the 3rd phases of Beijing Inst. of Civil Engineering ﹠ Arch's journal report, laboratory research is provided with an air preheater based on principle of electric-heating specially, propose and attempt the ignition stage and in gaseous mixture, introduce hydrogen, make that catalyst just can ignition under without the situation of flame preheating.As shown in Figure 2, catalytic reactor is by monolith reactor 14, flow control valve 15, and air intlet pipe 16, hydrogen inlet pipe 17, methane gas inlet tube 18 is formed, and regulates suitable hydrogen and air mass flow during the experiment beginning earlier.At room temperature, hydrogen and air can burn on platinum catalyst, and temperature of reactor can progressively be raised to more than 400 ℃.Combustion of hydrogen speed is fast, has increased the burning insecurity.2003 the 9th phases of the chemical industry journal flow-reversal type catalytic reactor of report can only use under reaction gas volume percentage utmost point low condition, utilize the little ceramic heat-storing sphere of volume bigger serface to absorb more weak exothermic heat of reaction to improve the catalyst operation economy, switching cycle reaches tens hours.The heat-accumulating process of flow-reversal type catalytic reactor is just finished the later catalytic reaction process of low temperature ignition, and the low temperature ignition remains a problem demanding prompt solution.It is few that the catalytic combustion technology in domestic gas burning and dynamic combustion field can generally be promoted, and great majority still are in development, is difficult to see relevant low temperature ignition design operation report.
Summary of the invention absorbs high-efficiency thermal storage material development achievement, in conjunction with non-premixed combustion, plane burning, air preheat burning and honeycomb regenerator technology, design the catalytic combustion low-temperature initiation means, satisfy that catalytic combustion low temperature ignition is simple, convenient, safety, economy and requirement such as quick.
The catalytic combustion low-temperature initiation means, mainly comprise the identical compactness of two nested structures vertically arranged heat-storage type burner arranged side by side, empty flue gas four-way change-over valve, burner mainly comprises pressure stabilizing chamber, the ceramic honeycomb heat storage, cellular catalytic body, the open type igniter, valve and quartzy air supply pipe are cut in combustion gas soon, furnace wall and two catalytic body end faces surround the combustion chamber, and four-way change-over valve places centre position, two burner bottoms, and two gas ports of reversal valve position symmetry are connected with two pressure stabilizing chamber air inlets respectively, heat storage places on the pressure stabilizing chamber end face and empty flue gas all flows through from the heat storage honeycomb channel, and the thin and specific area of heat storage partition is greater than 800m
2/ m
3Catalytic body places on the heat storage, catalytic body and the dead in line of heat storage honeycomb channel, combustion gas is cut valve soon and is placed stove to place quartzy air supply pipe upstream outward and along the fuel gas flow direction, quartzy air supply pipe passes the furnace wall, the quartzy air supply pipe port of export exceed catalytic body end face 15～20mm and and catalytic body end face center on same vertical line, igniter passes the furnace wall between quartzy air supply pipe and the catalytic body end face.
Flow through the successively pressure stabilizing chamber of a burner of the air of sending into by reversal valve, enter the combustion chamber after heat storage and the catalytic body, this burner combustion gas is cut valve soon and is in opening and makes combustion gas enter the combustion chamber through quartzy air supply pipe, flue gas is through the catalytic body of another burner, introduce reversal valve behind heat storage and the pressure stabilizing chamber, this burner combustion gas is cut valve soon and is in closed condition cut-out gas supply, the change of threshold switch state is cut in two burner combustion gas soon behind 15～60s, makes air and flue gas exchange flow duct with the action of space-time flue gas reversal valve.
The present invention is applicable to and uses low heat value, low-grade and low energy densities gaseous fuel, and the low temperature ignition operating time is short, and good economy performance is stablized easyly, and catalytic body is safe in utilization, combustion completion, and heat storage and catalytic body temperature are easy to control and regulation.All kinds of flow-reversal type catalytic reactors use various civilian or Industrial Catalysis burning boiler, the heater of oil liquefied gas, natural gas or artificial fuel gas, thermal power generation, and gas turbine power generation or High-temp. kiln all can use the present invention.
Description of drawings
A kind of catalytic combustion low-temperature initiation means that Fig. 1 relates to for invention;
Fig. 2 is a monolith catalytic reactor schematic diagram.14 is the monolith reactor, and 15 is flow control valve, and 16 is the air intlet pipe, and 17 is the hydrogen inlet pipe, 18 methane gas inlet tubes.
The present invention is further illustrated below in conjunction with accompanying drawing 1.
The specific embodiment
As shown in Figure 1, the catalytic combustion low-temperature initiation means mainly comprises pressure stabilizing chamber 1 and 12, heat storage 2 and 11, and catalytic body 4 and 9, left quartzy air supply pipe 6 and right quartzy air supply pipe 7, valve 3 and 10 are cut in combustion gas soon, igniter 5 and 8, empty flue gas four-way change-over valve 13.Pressure stabilizing chamber 1, heat storage 2, catalytic body 4, igniter 5, valve 3 is cut in combustion gas soon and left quartzy air supply pipe 6 is formed heat accumulating type plane, left side burner, pressure stabilizing chamber 12, heat storage 11, catalytic body 9, igniter 8, valve 10 is cut in combustion gas soon and right quartzy air supply pipe 7 is formed heat accumulating type plane, right side burner.Two burner combustion face widths and concentrated being arranged in juxtaposition.The end face of furnace wall and catalytic body 4 and 9 surrounds the combustion chamber.Four-way change-over valve 13 places centre position, two burners bottom, and two gas ports of reversal valve 13 position symmetries are connected with 12 air inlet with pressure stabilizing chamber 1 respectively.Pressure stabilizing chamber 1 and 12 plays uniformly distribute air or gas collection effect.Igniter passes the furnace wall between quartzy air supply pipe and the catalytic body end face, and igniter 5 places between catalytic body 4 and the left quartzy air supply pipe 6, and igniter 8 places between catalytic body 9 and the right quartzy air supply pipe 7.Heat storage places on the pressure stabilizing chamber end face and empty flue gas all evenly flows through heat storage, heat storage 2 two ends closely are connected with pressure stabilizing chamber 1 and catalytic body 4 respectively, heat storage 11 two ends closely are connected with pressure stabilizing chamber 12 and catalytic body 9 respectively, the combustion chamber closely is connected with catalytic body 4 and 9, and heat storage 2 and 11 main materials are A1
2O
3, cellular gas channel is set, middle wall thickness 0.5～1mm, specific area is greater than 800m
2/ m
3It is spherical or cellular that catalytic body 4 and 9 is, and can be rare-earth type or noble metal type catalyst, can be coating-type or monolithic devices catalytic body, and inside is provided with the uniform airflow passage.Catalytic body places on the heat storage, catalytic body and heat storage gas channel central axes.Catalytic body 4 is separated combustion chamber and heat storage 2, and catalytic body 9 is separated combustion chamber and heat storage 11.Combustion gas is cut valve soon and is placed outside the furnace wall and along the fuel gas flow direction and place quartzy air supply pipe upstream.Quartzy air supply pipe 6 in a left side and the good hollow alundum tube of right quartzy air supply pipe 7 usefulness high-temperature behaviors make.Quartzy air supply pipe passes the furnace wall, the quartzy air supply pipe port of export exceed catalytic body end face 15～20mm and and catalytic body end face center on same vertical line, catalytic body 4 or 9 central areas in the combustion chamber are sent in combustion gas.The combustion chamber is not provided with water cooling tube.
Flow through the successively pressure stabilizing chamber of a burner of the air of sending into by reversal valve 13, enter the combustion chamber after heat storage and the catalytic body, this burner combustion gas is cut valve soon and is in opening and makes combustion gas enter the combustion chamber through quartzy air supply pipe, flue gas is through the catalytic body of another burner, introduce reversal valve behind heat storage and the pressure stabilizing chamber, this burner combustion gas is cut valve soon and is in closed condition cut-out gas supply, the change of threshold switch state is cut in two burner combustion gas soon behind 15～60s, makes air and flue gas exchange flow duct with the action of space-time flue gas reversal valve.An another burner discharging flue gas and a recovery fume afterheat function when two burner cooperatings, a burner are organized the high temperature preheating burning, switching cycle is no more than 1min.Combustion gas cut soon valve 3 and 10 and 13 actions of burner, empty flue gas switching device shifter consistent.Two igniter burners 5 and 8 are in normally open for two burners provide the stable ignition source, periodically do not switch with two burner combustion and change.
With the burning of left side burner tissue is example, further specifies low-temperature initiation means and the using method that the present invention relates to.The left side combustion gas is cut valve 3 soon and is opened, and the right side combustion gas is cut valve 10 soon and closed.Air passes through reversal valve 13 successively, pressure stabilizing chamber 1, and heat storage 2 and catalytic body 4 enter in the combustion chamber, and combustion gas is flow through combustion gas successively and is cut valve 3 and left quartzy air supply pipe 6 soon and inject catalytic body 4 top center zones in the combustion chambers.Because heat storage 2 temperature height in left side add that its specific area is big, when flowing through heat storage 2, air also is preheating to the high temperature level rapidly.DIFFUSION CONTROLLED type preheating air combustion takes place in high temperature air and combustion gas mixing postignition under igniter 5 effects, plane flame occurs.The combustion chamber does not have water cooling tube to take away heat, but the furnace wall accumulation of heat is arranged.Because furnace wall temperature is low, the flue-gas temperature that flow to catalytic body 9 under the accumulation of heat effect of furnace wall is lower than the catalytic body deactivation temperature.Under the air-introduced machine effect, flue gas flows into pressure stabilizing chamber 12 through catalytic body 9 and heat storage 11 successively, is introduced into reversal valve 13 again.Cool to the temperature levels that exceeds 50～100 ℃ of environment temperatures in 11 li flue gas heat releases of right side heat storage.
Along with heat transfer process carries out, heat storage 2 temperature in left side are more and more lower, and heat storage 11 temperature in right side are more and more higher.Behind 15～60s, 13 actions of empty flue gas reversal valve, air and flue gas exchange current siphunculus road, right side tissue is changed in burning, and left side heat storage 2 reclaims fume afterheats, for empty flue gas reversal valve 13 moves the pre-composition of preheating afterwards store heat again.Right side combustion gas this moment is cut valve 10 soon and is opened, and the left side combustion gas is cut valve 3 soon and closed.Combustion gas is flow through combustion gas successively and is cut valve 10 and right quartzy air supply pipe 7 soon and inject catalytic body 9 central areas in the combustion chambers, and air passes through pressure stabilizing chamber 12 successively, and heat storage 11 and catalytic body 9 enter in the combustion chamber, and flue gas is successively through catalytic body 4 and heat storage 2 inflow pressure stabilizing chambers 1.
Experiment shows: invention can use originally discarded calorific value and be lower than 800kCal/m
3Fuel gas with low heat value, low temperature ignition operation can brought up to the catalytic body temperature more than 800 ℃ in the time less than 60min, good economy performance, stablize easy, flameholding safety, catalytic body uniformity of temperature profile, no localized hyperthermia and be easy to.
Claims (1)
1. catalytic combustion low-temperature initiation means, it is characterized in that: comprise the identical and compact vertically arranged heat-accumulation combustor arranged side by side of two nested structures, empty flue gas four-way change-over valve, heat-accumulation combustor comprises pressure stabilizing chamber, cellular ceramic heat storage body, cellular catalytic body, the open type igniter, valve and quartzy air supply pipe are cut in combustion gas soon, the end face of furnace wall and two catalytic body surrounds the combustion chamber, empty flue gas four-way change-over valve is placed in centre position two heat-accumulation combustor bottoms, two gas ports of empty flue gas four-way change-over valve position symmetry are connected with the air inlet of two pressure stabilizing chambers respectively, on the end face of pressure stabilizing chamber ceramic heat storage body is set, empty flue gas all flows through from the honeycomb channel of ceramic heat storage body, and the thin and specific area of ceramic heat storage body partition is greater than 800m
2/ m
3Placement catalytic body on ceramic heat storage body, the honeycomb channel dead in line of catalytic body and ceramic heat storage body, the upstream that valve places outside the stove and places quartzy air supply pipe along the fuel gas flow direction is cut in combustion gas soon, quartzy air supply pipe passes the furnace wall, the quartzy air supply pipe port of export exceed catalytic body end face 15～20mm and and the center of catalytic body end face on same vertical line, the open type igniter passes the furnace wall between quartzy air supply pipe and the catalytic body end face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710036044XA CN101430089B (en) | 2007-11-05 | 2007-11-05 | Low-temperature initiation means of catalyst combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710036044XA CN101430089B (en) | 2007-11-05 | 2007-11-05 | Low-temperature initiation means of catalyst combustion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101430089A CN101430089A (en) | 2009-05-13 |
| CN101430089B true CN101430089B (en) | 2010-08-25 |
Family
ID=40645631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710036044XA Expired - Fee Related CN101430089B (en) | 2007-11-05 | 2007-11-05 | Low-temperature initiation means of catalyst combustion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101430089B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103900075B (en) * | 2014-04-09 | 2016-02-10 | 大连容大资源循环利用咨询设计有限公司 | A kind of combustion gas constant temperature heat storage burner |
| CN106017091B (en) * | 2016-05-25 | 2019-03-12 | 深圳市龙瑞泰兴能源环境科技有限公司 | A kind of anti-explosion safety industrial furnace |
| CN106439867A (en) * | 2016-11-21 | 2017-02-22 | 北京神雾环境能源科技集团股份有限公司 | Heat accumulation type catalytic combusting device |
| CN106439814A (en) * | 2016-11-22 | 2017-02-22 | 北京神雾环境能源科技集团股份有限公司 | Radiant heater and industrial furnace |
| CN111328606A (en) * | 2020-02-05 | 2020-06-26 | 陕西中天火箭技术股份有限公司 | Remote control ground flame drilling and scattering device |
| CN111537664B (en) * | 2020-05-07 | 2022-12-20 | 江苏集萃智能集成电路设计技术研究所有限公司 | Catalytic multi-gas sensing system |
| CN113513761B (en) * | 2021-07-07 | 2022-07-08 | 洛阳瑞昌环境工程有限公司 | Sulfur recovery device tail gas treatment equipment and control method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094688U (en) * | 1991-06-11 | 1992-01-29 | 李升鹤 | Heat-accumulated gas range |
| CN2689064Y (en) * | 2004-03-15 | 2005-03-30 | 中国船舶重工集团公司第七一一研究所 | Separated high air-temperature thermal storing burners |
-
2007
- 2007-11-05 CN CN200710036044XA patent/CN101430089B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094688U (en) * | 1991-06-11 | 1992-01-29 | 李升鹤 | Heat-accumulated gas range |
| CN2689064Y (en) * | 2004-03-15 | 2005-03-30 | 中国船舶重工集团公司第七一一研究所 | Separated high air-temperature thermal storing burners |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101430089A (en) | 2009-05-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101430089B (en) | Low-temperature initiation means of catalyst combustion device | |
| CN104456617A (en) | Control method of regenerative combustion device | |
| CN104832922A (en) | Heat storage gas heating device and heat storage gas heating method | |
| CN101338894A (en) | Low-calorie fuel dual prewarming and thermal storage type energy-saving boiler | |
| CN103062770A (en) | High-temperature gas generating device on basis of porous medium combustion and heat storage | |
| CN101101114A (en) | Quick switching type catalyzed combustion boiler device | |
| CN104595897A (en) | Single-layer porous foam ceramic plate partial pre-mixing fuel gas combustor | |
| CN201083387Y (en) | Air fume pipe switching type catalyzing/heat storage combustion boiler | |
| CN202012917U (en) | Air and smoke pipeline switching type catalysis/heat storage combustion boiler | |
| CN201141595Y (en) | Honeycomb heat-accumulation burning type catalyzer initiation device | |
| CN203052664U (en) | High-temperature gas generating device based on porous medium combustion and thermal storage | |
| CN103615905B (en) | Continuous heat accumulation type industrial furnace afterheat utilizing system | |
| CN107559877A (en) | Multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver | |
| CN201034313Y (en) | Air and fuel double-preheating exchange type combustion furnace | |
| CN107559812A (en) | Modular multistage phase-change heat-storage high-temperature air burning energy saver | |
| CN202793046U (en) | Continuous burning heat accumulating type industrial furnace | |
| CN201945175U (en) | Multiple-effect integrated pipe type heating furnace | |
| CN204739584U (en) | Gaseous heating device of heat accumulation formula | |
| CN201666574U (en) | Reverse flow heat-exchanging catalytic combustor without ignition device | |
| CN207455571U (en) | Multi-level phase change heat accumulating type high-temperature air burning energy saver | |
| CN201779983U (en) | Heat accumulating-type combustion reformed heating furnace | |
| CN201251516Y (en) | Performance testing platform for high-temperature regenerator | |
| CN101251300A (en) | Pipe type heating furnace | |
| CN201636873U (en) | Pre-combustor for tube-type heating furnace | |
| CN207584811U (en) | Multipurpose modular multistage phase-change heat-storage high-temperature air burning energy saver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100825 Termination date: 20111105 |