CN204213912U - Submerged combustion low nitrogen combustion apparatus - Google Patents
Submerged combustion low nitrogen combustion apparatus Download PDFInfo
- Publication number
- CN204213912U CN204213912U CN201420577259.8U CN201420577259U CN204213912U CN 204213912 U CN204213912 U CN 204213912U CN 201420577259 U CN201420577259 U CN 201420577259U CN 204213912 U CN204213912 U CN 204213912U
- Authority
- CN
- China
- Prior art keywords
- combustion
- chamber
- backflow flue
- combustion chamber
- low nitrogen
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of submerged combustion low nitrogen combustion apparatus, Gas Pipe (2) and air chamber (1) are connected to combustion chamber (3), combustion chamber (3) connects smoke pipe (4), smoke pipe (4) is provided with multiple cigarette hole (5), combustion chamber (3) is connected with air chamber (1) again through backflow flue (9), be provided with blower fan (8) in backflow flue (9), water bath device (6) be connected with chimney (7).The utility model operating cost is relatively low, energy-conserving and environment-protective.
Description
Technical field
The utility model relates to that a kind of structure is simple, the submerged combustion low nitrogen combustion apparatus of low power consuming.
Background technology
The submerged combustion gasifier of liquefied natural gas (LNG) supply system is the most popular firing equipment for heating and gasifying LNG at present, and the low nitrogen technology of submersible burning device is crucial.Current submersible burning device adopts the method for spray cooling to control the generation of nitrogen oxide usually.Due to the high back pressure feature of submersible burning, adopt traditional low-NO_x combustion technology, such as sectional combustion technology, complicated burner structure is not suitable for the environment of submerged combustion; The method of spray cooling for another example, because chamber pressure is high, the energy consumption of water spray water pump is large, and its operating cost is very high.
Utility model content
In order to solve the problems of the technologies described above, the purpose of this utility model is to provide that a kind of structure is simple, the submerged combustion low nitrogen combustion apparatus of low power consuming, and adopt the hypoxemia of smoke backflow or low-temperature burning to control NO_x formation, burner structure is simple, operating cost is relatively low, energy-conserving and environment-protective.Concrete scheme is as follows:
A kind of submerged combustion low nitrogen combustion apparatus, comprising: air chamber, Gas Pipe, combustion chamber, smoke pipe, water bath device and chimney; Gas Pipe and air chamber are connected to combustion chamber, and combustion chamber connects smoke pipe, and smoke pipe is provided with multiple cigarette hole, bottom, combustion chamber and smoke pipe are arranged in water bath device, and water bath device is connected with chimney.
Combustion chamber is connected with air chamber through backflow flue, is provided with blower fan in backflow flue.
Further, the entrance of described backflow flue is arranged on the low position of described burner ends flue-gas temperature.
Further, described backflow flue bottom is arranged in water bath device.
Further, the connection of described backflow flue top and air chamber will make backflow flue gas tangentially enter air chamber, and with air draught side with contrary.
It is as follows that the utility model has beneficial effect:
Submerged combustion low nitrogen combustion apparatus of the present utility model reduces the temperature of combustion zone by smoke backflow, to control the generation of nitrogen oxide.Because backflow flue gas takes from combustion chamber, identical with chamber pressure, so the energy consumption of backflow blower fan is little, and do not consume water resource, greatly can reduce operating cost.
Accompanying drawing explanation
Fig. 1 is the structure chart of submerged combustion low nitrogen combustion apparatus of the present utility model;
Fig. 2 is the reflux ratio v of flue gas and the temperature t of backflow flue gas
hgraph of a relation.
Wherein: 1-air chamber, 2-Gas Pipe, 3-combustion chamber, 4-smoke pipe, 5-cigarette hole, 6-water-bath, 7-chimney, 8-blower fan, 9-refluxes flue.
Detailed description of the invention
As shown in Figure 1, submerged combustion low nitrogen combustion apparatus comprises: air chamber 1, Gas Pipe 2, combustion chamber 3, smoke pipe 4, water bath device 6, chimney 7; Gas Pipe 2 and air chamber 1 are connected to combustion chamber 3, combustion chamber 3 connects smoke pipe 4, smoke pipe 4 is provided with multiple cigarette hole 5, combustion chamber 3 is connected with air chamber 1 again through backflow flue 9, blower fan 8 is provided with in backflow flue 9, combustion chamber 3, smoke pipe 5, backflow flue 9 are arranged in water bath device 6, water bath device 6 are connected with chimney 7.
Combustion gas and air enter combustion chamber 3 from Gas Pipe 2 and air chamber 1 respectively, mix in combustion chamber 3 while burn, the cigarette hole 5 that flue gas after burning is arranged from bottom smoke pipe 4 enters water-bath 6, transfer heat to water, cooled flue gas enters air from the water surface through chimney 7, utilizes blower fan 8 to make the partial fume in combustion chamber 3 enter air chamber 1 by the backflow of backflow flue 9 simultaneously.
The entrance of backflow flue 9 is arranged on the low position of combustion chamber 3 end flue-gas temperature, can reduce backflow flue gas amount, reduces blower fan consumption.Backflow flue gas takes from combustion chamber 3, and the pressure reduction that blower fan 8 is imported and exported is little, and therefore energy consumption is low.Backflow flue 9 bottom is arranged in a water bath, can reduce insulation demand, and increase heat-transfer area.Backflow flue 9 top and the connection of air chamber 1 will make backflow flue gas tangentially enter air chamber 1, and contrary with air draught direction, are beneficial to again mixing of backflow flue gas and air.Backflow flue gas mixes before combustion with air.In order to meet theoretical temperature combustion lower than 1500 DEG C, when excess air coefficient is 1.2, when fuel is methane, the reflux ratio v of flue gas and the temperature t of backflow flue gas
hmeet the backflow flue gas design parameter on Fig. 2 curve corresponding to any point.
The above is preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. a submerged combustion low nitrogen combustion apparatus, comprising: air chamber (1), Gas Pipe (2), combustion chamber (3), smoke pipe (4), water bath device (6), chimney (7); Gas Pipe (2) and air chamber (1) are connected to combustion chamber (3), combustion chamber (3) connects smoke pipe (4), smoke pipe (4) is provided with multiple cigarette hole (5), (3) bottom, combustion chamber and smoke pipe (5) are arranged in water bath device (6), water bath device (6) is connected with chimney (7), it is characterized in that: combustion chamber (3) are connected with air chamber (1) through backflow flue (9) again, in backflow flue (9), be provided with blower fan (8).
2. submerged combustion low nitrogen combustion apparatus according to claim 1, the entrance of wherein said backflow flue (9) is arranged on the low position of described combustion chamber (3) end flue-gas temperature.
3. submerged combustion low nitrogen combustion apparatus according to claim 1 and 2, wherein said backflow flue (9) bottom is arranged in water bath device (6).
4. submerged combustion low nitrogen combustion apparatus according to claim 1 and 2, the connection of wherein said backflow flue (9) top and air chamber (1) will make backflow flue gas tangentially enter air chamber (1), and contrary with air draught direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420577259.8U CN204213912U (en) | 2014-10-08 | 2014-10-08 | Submerged combustion low nitrogen combustion apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420577259.8U CN204213912U (en) | 2014-10-08 | 2014-10-08 | Submerged combustion low nitrogen combustion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204213912U true CN204213912U (en) | 2015-03-18 |
Family
ID=52982578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420577259.8U Active CN204213912U (en) | 2014-10-08 | 2014-10-08 | Submerged combustion low nitrogen combustion apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204213912U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423289A (en) * | 2015-12-31 | 2016-03-23 | 重庆川然节能技术有限公司 | Condensation-resistant system and method of flue gas outer circulation combustion equipment |
| CN109253451A (en) * | 2017-07-13 | 2019-01-22 | 鞍钢股份有限公司 | A kind of smoke backflow phase-change heat-exchange radiation pipe apparatus |
-
2014
- 2014-10-08 CN CN201420577259.8U patent/CN204213912U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105423289A (en) * | 2015-12-31 | 2016-03-23 | 重庆川然节能技术有限公司 | Condensation-resistant system and method of flue gas outer circulation combustion equipment |
| CN109253451A (en) * | 2017-07-13 | 2019-01-22 | 鞍钢股份有限公司 | A kind of smoke backflow phase-change heat-exchange radiation pipe apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202734221U (en) | Vertical energy-saving environmental-protection boiler | |
| CN204213912U (en) | Submerged combustion low nitrogen combustion apparatus | |
| CN205480914U (en) | Environment -protecting energy -saving boiler | |
| CN203963899U (en) | Carbonization gas boiler | |
| CN207585082U (en) | A kind of π types fuel vapor organic heat carrier furnace | |
| CN203346416U (en) | Top combustion stove provided with gas and air mixing spray pipe | |
| CN204461015U (en) | The flue gas energy conserving system of natural gas boiler | |
| CN203972266U (en) | Fire coal and the dual-purpose heater of fuel oil of drying tunnel for a kind of application | |
| CN205174429U (en) | Biomass briquette fuel flue -cured tobacco stove level four air inlet system | |
| CN104534433A (en) | Boiler for coal electric shaft power station | |
| CN202329113U (en) | Low-carbon energy-saving gas melting aluminum furnace | |
| CN204987104U (en) | Energy -concerving and environment -protective type gas stove | |
| CN204345596U (en) | Wind energy, solar energy and power station, coal Electricity Federation boiler | |
| CN203336593U (en) | Wall-hanging stove fire row burner | |
| CN203443097U (en) | Energy-saving environment-friendly boiler | |
| CN214701277U (en) | Petroleum heating device | |
| CN210512187U (en) | Heating device applied to methanol wall-mounted furnace | |
| CN203549918U (en) | Heat-trapped energy-saving stove | |
| CN204962723U (en) | Vaporization burner and contain this kind of vaporization burner's heating boiler | |
| CN204693364U (en) | A kind of boiler | |
| CN106513276A (en) | Fire coal and oil double-usage heating drying channel structure for coating | |
| CN201764536U (en) | Self-blowing-in biomass high-efficiency kitchen furnace | |
| CN203671890U (en) | High-efficiency, environment-friendly and energy-saving civil heating hot-water boiler | |
| CN204756876U (en) | Boiler system's horizontal water tube device | |
| CN204460203U (en) | Reduce the burner of oxynitrides |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |