CN110118365A - Flameless gas stove - Google Patents
Flameless gas stove Download PDFInfo
- Publication number
- CN110118365A CN110118365A CN201910488608.6A CN201910488608A CN110118365A CN 110118365 A CN110118365 A CN 110118365A CN 201910488608 A CN201910488608 A CN 201910488608A CN 110118365 A CN110118365 A CN 110118365A
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- CN
- China
- Prior art keywords
- flameless
- gas
- combustion
- backfire
- catalytic
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/04—Stoves or ranges for gaseous fuels with heat produced wholly or partly by a radiant body, e.g. by a perforated plate
- F24C3/06—Stoves or ranges for gaseous fuels with heat produced wholly or partly by a radiant body, e.g. by a perforated plate without any visible flame
- F24C3/067—Ranges
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
Abstract
Flameless gas stove, including gas premixing mechanism, anti-backfire mechanism, preheated burning mechanism and catalytic burner, air pipe line connects the premix chamber of gas premixing mechanism with fuel gas pipeline, gas premixing mechanism top connects anti-backfire mechanism, anti-backfire mechanism top connects preheated burning mechanism, preheated burning mechanism is equipped with igniter, and preheated burning mechanism top is equipped with catalytic burner, and catalytic burner is the catalytic flameless combustion tube for filling catalyst for catalytic combustion.Flameless gas stove of the invention, using flameless catalytic combustion, CO and NOx discharge are low, realize the low nitrogen of low toxicity, safety and environmental protection；Simultaneously because flameless combustion, combustion noise is substantially reduced, and substantially increases wind loading rating；It carries and uses conveniently.
Description
Technical field
The present invention relates to gas cooker technical fields.
Background technique
In recent years, atmosphere pollution becomes one of main environmental problem in China.Atmosphere pollution is mainly derived from variousization
The burning of stone fuel.Compared to coal-fired and fuel oil, the pollutants such as dust, sulfur dioxide that combustion of natural gas process generates significantly drop
It is low, it is more clean fuel, not nitrogen-containing oxide (NOx) itself, but when there is blue and white thermal-flame after its burning, it can lead
Nitrogen and the oxygen reaction in air is caused to generate thermal NO x；And it burns when there is yellow cold flame, combustion of natural gas is not
A large amount of CO can be generated completely.NOx is the important as precursors object of PM2.5 in haze, and CO poisoning risk is also always that gas-cooker uses
In maximum pain spot.The always blue yellow flare of conventional flame burning technology coexists, shifting, it is difficult to while reducing NOx's and CO
It generates.
Burning is according to whether there is or not visible flames can be divided into two classes: flame combustion and flameless combustion.Flame combustion is substantially to fire
Gas oxidation reaction for occurring in free radical presence, this combustion system it is natural there is following two aspects problem: 1) burning is not
Formaldehyde, the toxic and harmful gas such as carbon monoxide (CO) can be generated completely, and fuel availability is low；2) it burns under the conditions of high-temperature oxygen-enriched
It will lead to a large amount of generations of thermal NO x.
Existing flameless combustion gas-cooker generallys use the following two kinds mode: (1) catalysis burning, in the burning of gas cooker
Contact surface is coated with catalyst, as the entitled one kind of the patent No. 012137022 is quick, catalysis is without pressure environmental protection type alcohol radical liquid fuel stove
The patent of tool；Filling is equipped on kitchen range top or is coated with cat ceramic plate or metal plate, as the patent No. 032262272 is entitled
The patent of gas catalytic burner, the patent of the entitled Yttrium catalytic combustion integrated stove of Patent No. 2006101368637, specially
Patent, the Patent No. of the entitled Quincunx double-air inlet catalytic combustion oven for frying Chinese dishes of benefit number 2007200034499
A kind of patent of 2014207217221 entitled catalysis type burning stoves, the entitled Chinese meal cooking of Patent No. 2016200363014
The patent of stove；The technical solution recorded in above-mentioned patent is all by the burning contacts face of gas-cooker or the heating of kitchen range top
Catalyst is arranged to improve the thermal efficiency, reduce the CO and NOx content in discharge gas in face, but its essence is still to have stove is intracorporal
Flame burning.(2) far infrared carborundum plate, ceramic wafer etc. are arranged on kitchen range and realizes infra-red radiation burning, such as patent for infrared combustion
Number be 87215748 entitled adjustable household flameless gas burners, the entitled household infrared ray coke oven of Patent No. 882085077
Patent, the Patent No. of gas burner: patent, the Patent No. of 2010201947256 entitled Far infrared cellular stove plates
A kind of 2015101961316 entitled patents of flameless combustion burner, the entitled air of Patent No. 2016106513664 can fire
The entitled a kind of patent of energy-saving environment Protection gaseous fuel stove of patent, the patent No. 2005200634978 of gas stove, in above-mentioned patent
The technical solution of record is all to improve the thermal efficiency by setting infrared radiation panel, reduce the CO and NOx content in discharge gas,
But its essence is still in the intracorporal flaming combustion of stove.
Above two non flame combustion mode, does not all realize flameless combustion truly, in heat utilization efficiency and CO, NOx
Discharge aspect is still to be improved and improves.
Summary of the invention
In order to further increase the thermal efficiency, realize less toxic low nitrogen burning, the present invention provides a kind of flameless gas stoves.
Present invention technical solution used for the above purpose is: flameless gas stove, including gas premixing mechanism, anti-
Tempering mechanism, preheated burning mechanism and catalytic burner, air pipe line connect the premix chamber of gas premixing mechanism with fuel gas pipeline,
Gas premixing mechanism top connects anti-backfire mechanism, and anti-backfire mechanism top connects preheated burning mechanism, and preheated burning mechanism is set
There is igniter, preheated burning mechanism top is equipped with catalytic burner, and catalytic burner is the catalysis for filling catalyst for catalytic combustion
Flameless combustion pipe.
Air control valve 7 and gas control valve 8 are respectively set on the air pipe line and fuel gas pipeline.
The combustion gas premixing mechanism is connect by straight tube, S bend pipe or helix tube with anti-backfire mechanism, straight tube, S bend pipe or
The tube section product range of helix tube is 1cm2-100cm2。
The anti-backfire mechanism is the honeycomb of ceramics or metal material, and honeycomb hole magnitude range is 100-1000 mesh,
Backfire controller sectional area is 1cm2-500cm2。
The preheated burning of the preheated burning mechanism is intracavitary to be equipped with igniter and flame ionic detector.
The catalytic burner is made of single or more heat-resisting pipe fitting of filling catalyst for catalytic combustion, and pipe fitting is straight tube
Or bending coil pipe, catalytic burner are equipped with thermocouple.
It further include exhaust emissions mechanism, exhaust emissions mechanism includes exhaust fume collecting hood and smoke pipe, and exhaust fume collecting hood is installed on catalysis burning
The exit of device, exhaust fume collecting hood connect smoke pipe.
Flameless gas stove of the invention, using flameless catalytic combustion, CO and NOx discharge are low, realize the low nitrogen of low toxicity, peace
Loopful is protected；Simultaneously because flameless combustion, combustion noise is substantially reduced, and substantially increases wind loading rating；The side of carrying and using
Just.
Detailed description of the invention
Fig. 1 is flameless gas stove schematic diagram of the present invention.
Fig. 2 is flameless gas stove catalytic flameless combustion tube structure chart of the present invention.
Fig. 3 is one flameless gas stove structure chart of the embodiment of the present invention.
Fig. 4 is two flameless gas stove structure chart of the embodiment of the present invention.
In figure: 1, exhaust emissions mechanism, 2, catalytic burner, 3, preheated burning mechanism, 4, anti-backfire mechanism, 5, combustion gas it is pre-
Mixed mechanism, 6, air pipe line, 7, air control valve, 8, gas control valve, 9, fuel gas pipeline, 10, igniter, 11, flame ion
Detector, 12, preheated burning chamber, 13, thermocouple, 14, catalytic flameless combustion tube, 15, exhaust fume collecting hood, 16, smoke pipe, 17, outlet.
Specific embodiment
Catalytic flameless combustion gas stove can make the gaseous mixture of combustion gas and air that catalysis burning occur instead in catalyst surface
Heat should and be released, to achieve the purpose that heat such as other media of cookware, gas-cooker power is 0-10Kw (the specified function of household
Rate is generally 5kW or less).
Flameless gas stove principle of the invention is as shown in Figure 1, include gas premixing mechanism 5, anti-backfire mechanism 4, preheating combustion
Mechanism 3, catalytic burner 2 and exhaust emissions mechanism 1 are burnt, 6 road of air hose and fuel gas pipeline 9 connect the pre- of gas premixing mechanism 5
Chamber is mixed, air control valve 7 and gas control valve 8 are respectively set on 6 road of air pipe line and fuel gas pipeline 9, gas premixing mechanism 5 is logical
Straight tube, S bend pipe or helix tube to be crossed to connect with anti-backfire mechanism 4, anti-backfire mechanism 4 is the honeycomb of ceramics or metal material,
Honeycomb hole magnitude range is 100-1000 mesh, and backfire controller sectional area is 1cm2-500cm2, the pipe of straight tube, S bend pipe or helix tube
Sectional area range is 1cm2-100cm2, 5 top of gas premixing mechanism connection anti-backfire mechanism 4, the connection of 4 top of anti-backfire mechanism is in advance
Hot combustion mechanism 3, the preheated burning of preheated burning mechanism 3 is intracavitary to be equipped with igniter 10 and flame ionic detector 11, preheating combustion
It burns 3 top of mechanism and is equipped with catalytic burner 2, catalytic burner 2 heat-resisting is urged by single or more of filling catalyst for catalytic combustion
Change flameless combustion pipe 14 to form, catalytic flameless combustion tube 14 is that straight tube or bending coil pipe, Fig. 2 show bending coil arrangement.It urges
Change burner 2 and is equipped with thermocouple 13.Exhaust emissions mechanism 1 includes exhaust fume collecting hood 15 and smoke pipe 16, and exhaust fume collecting hood 15 is installed on catalysis
At the outlet 17 of burner 2, exhaust fume collecting hood 15 connects smoke pipe 16.
Fuel gas supply mode can pass through for the air inlet of domestic gas pipeline positive pressure or the mode sucked by negative pressure, gas flow
Gas control valve 8 on fuel gas pipeline 9 is adjusted, and air supply modes can choose forced-ventilated (front end actively supplies) or strong pumping (tail
Hold forced exhaust) mode, the device for supplying air can be such that air blower, air pumps, and air inlet wind pressure is 2-50kPa
(domestic gas pressure is in 2kPa or so), air inlet amount can be adjusted by the air control valve 7 on air pipe line 6.Air
Supply electric appliance (blower) can also can be integrated together with separate configurations with smoke exhaust ventilator is made into integrated kitchen range.Gaseous mixture is by preventing back
Enter preheated burning chamber 12 after fiery ceramics, is furnished with igniter 10 and flame ionic detector 11 to light a fire in preheated burning chamber 12
With preheating flame monitoring, catalytic flameless combustion tube 14 can be straight tube be also possible to be bent coil pipe, can on a horizontal plane,
As shown in Fig. 4 embodiment two；Different shapes, such as semi-round ball can also be formed with the curved surface cooperation target heater in abnormity
Type, as shown in Fig. 3 embodiment one.Catalytic burner is equipped with thermocouple to monitor catalytic flameless burning working condition.By urging
Change burning and the flue gas that burner 2 is discharged are pooled together by exhaust fume collecting hood 15 and are discharged by smoke pipe 16, and smoke pipe 16 can be single
Solely configuration is also desirably integrated into smoke exhaust ventilator and is made into integrated kitchen range.
Working principle: the electric appliances such as blower actively provide air with pressure, after air mixes in gas premixing mechanism 5 with combustion gas
Enter preheated burning chamber 12 by anti-backfire mechanism 4, pre-mixing gas combustion is ignited device 10 and lights and carry out open fire combustion heating catalysis
Agent (ion detector detects flare up fire), catalyst are preheated to after certain temperature by adjusting air control valve 7 or combustion
Gas regulating valve 8 increases air capacity gas quantity suddenly makes fray-out of flame, and open fire burning switchs to catalytic flameless burning (ion detector inspection
Measure flare up fire disappearance), gas-cooker continues working heating such as cookware medium, combustion tail gas under catalytic flameless combustion state
Outdoor is discharged by smoke pipe 16 again after collecting by exhaust fume collecting hood 15, gas-cooker can be adjusted during working by regulating gas regulating valve
Gas fuel saving flow realizes the adjusting for using power, while controlling blower and changing air mass flow to guarantee best catalytic flameless burning shape
State.
The present invention is described by embodiment, and those skilled in the art know, is not departing from spirit of the invention
In the case where range, various changes or equivalence replacement can be carried out to these features and embodiment.In addition, in religion of the invention
It leads down, can modify to these features and embodiment to adapt to particular situation and material without departing from essence of the invention
Mind and range.Therefore, the present invention is not limited to the particular embodiment disclosed, fallen with claims hereof
Embodiment in range belongs to protection scope of the present invention.
Claims (7)
1. flameless gas stove, it is characterised in that: including gas premixing mechanism (5), anti-backfire mechanism (4), preheated burning mechanism (3)
With catalytic burner (2), the premix chamber of air pipe line (6) and fuel gas pipeline (9) connection gas premixing mechanism (5), gas premixing
Mechanism (5) top connects anti-backfire mechanism (4), and anti-backfire mechanism (4) top connects preheated burning mechanism (3), preheated burning machine
Structure is equipped with igniter (10), and preheated burning mechanism (3) top is equipped with catalytic burner (2), and catalytic burner (2) is filling catalysis
The catalytic flameless combustion tube (14) of combustion catalyst.
2. flameless gas stove according to claim 1, it is characterised in that: on the air pipe line (6) and fuel gas pipeline (9)
Air control valve (7) and gas control valve (8) is respectively set.
3. flameless gas stove according to claim 1, it is characterised in that: the combustion gas premixing mechanism (5) by straight tube,
S bend pipe or helix tube are connect with anti-backfire mechanism (4), and the tube section product range of straight tube, S bend pipe or helix tube is 1cm2-
100cm2。
4. flameless gas stove according to claim 1, it is characterised in that: the anti-backfire mechanism (4) is ceramics or metal
The honeycomb of material, honeycomb hole magnitude range are 100-1000 mesh, and backfire controller sectional area is 1cm2-500cm2。
5. flameless gas stove according to claim 1, it is characterised in that: the preheated burning of the preheated burning mechanism (3)
It is intracavitary to be equipped with igniter (10) and flame ionic detector (11).
6. flameless gas stove according to claim 1, it is characterised in that: the catalytic burner (2) is by filling catalysis combustion
Single or more heat-resisting pipe fitting (14) composition of catalyst is burnt, pipe fitting is that straight tube or bending coil pipe, catalytic burner (2) are equipped with
Thermocouple (13).
7. flameless gas stove according to claim 1, it is characterised in that: further include exhaust emissions mechanism (1), exhaust emissions
Mechanism (1) includes exhaust fume collecting hood (15) and smoke pipe (16), and exhaust fume collecting hood (15) is installed at the outlet (17) of catalytic burner (2), collection
Petticoat pipe (15) connects smoke pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910488608.6A CN110118365A (en) | 2019-06-06 | 2019-06-06 | Flameless gas stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910488608.6A CN110118365A (en) | 2019-06-06 | 2019-06-06 | Flameless gas stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110118365A true CN110118365A (en) | 2019-08-13 |
Family
ID=67523800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910488608.6A Pending CN110118365A (en) | 2019-06-06 | 2019-06-06 | Flameless gas stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110118365A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1828137A (en) * | 2006-01-18 | 2006-09-06 | 北京工业大学 | Gas fuel catalytic combustor |
| CN2839853Y (en) * | 2005-08-26 | 2006-11-22 | 广东万和集团有限公司 | Energy-saving environment Protection gaseous fuel stove |
| CN204962762U (en) * | 2015-07-02 | 2016-01-13 | 周海波 | Gas catalysis nonflame near -infrared direct heating porous medium combustor |
| CN205137854U (en) * | 2015-10-29 | 2016-04-06 | 青岛经济技术开发区海尔热水器有限公司 | Gas water heater |
| CN105757664A (en) * | 2016-03-29 | 2016-07-13 | 芜湖美的厨卫电器制造有限公司 | Combustor, gas water heater and water heating method |
| CN105841340A (en) * | 2016-05-13 | 2016-08-10 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| US20190107278A1 (en) * | 2016-04-14 | 2019-04-11 | Dalian Institute Of Chemical Physics, Chinese Academy Of Sciences | Catalytic flameless combustion apparatus with extremely low pollutant emission and combustion method |
| CN210532458U (en) * | 2019-06-06 | 2020-05-15 | 红热燃烧科技(大连)有限公司 | Flameless gas stove |
-
2019
- 2019-06-06 CN CN201910488608.6A patent/CN110118365A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2839853Y (en) * | 2005-08-26 | 2006-11-22 | 广东万和集团有限公司 | Energy-saving environment Protection gaseous fuel stove |
| CN1828137A (en) * | 2006-01-18 | 2006-09-06 | 北京工业大学 | Gas fuel catalytic combustor |
| CN204962762U (en) * | 2015-07-02 | 2016-01-13 | 周海波 | Gas catalysis nonflame near -infrared direct heating porous medium combustor |
| CN205137854U (en) * | 2015-10-29 | 2016-04-06 | 青岛经济技术开发区海尔热水器有限公司 | Gas water heater |
| CN105757664A (en) * | 2016-03-29 | 2016-07-13 | 芜湖美的厨卫电器制造有限公司 | Combustor, gas water heater and water heating method |
| US20190107278A1 (en) * | 2016-04-14 | 2019-04-11 | Dalian Institute Of Chemical Physics, Chinese Academy Of Sciences | Catalytic flameless combustion apparatus with extremely low pollutant emission and combustion method |
| CN105841340A (en) * | 2016-05-13 | 2016-08-10 | 芜湖美的厨卫电器制造有限公司 | Gas water heater |
| CN210532458U (en) * | 2019-06-06 | 2020-05-15 | 红热燃烧科技(大连)有限公司 | Flameless gas stove |
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