CN202125949U - Efficient combustor - Google Patents
Efficient combustor Download PDFInfo
- Publication number
- CN202125949U CN202125949U CN2011201000015U CN201120100001U CN202125949U CN 202125949 U CN202125949 U CN 202125949U CN 2011201000015 U CN2011201000015 U CN 2011201000015U CN 201120100001 U CN201120100001 U CN 201120100001U CN 202125949 U CN202125949 U CN 202125949U
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- burner
- hole
- chamber
- combustion
- precombustion chamber
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Abstract
The utility model relates to an efficient combustor which comprises an air inlet channel, a combustor casing, a pre-combustion chamber, a combustion-supporting air distributing chamber, a swirler, a spray gun guiding pipe, a plurality of complementary combustion air inlets, a smoke and flame spraying choke tube, a flue gas backflow hole, an ignition hole, a fire viewing hole and a thermal insulation layer. Accordingly, the efficient combustor can improve combustion, improves burn-off rate, reduces content of nitrogen oxide (NOX) in flue gas after combustion, and has the effect of energy saving and environment protection.
Description
Technical field
The utility model relates to a kind of petrochemical technology field, particularly relates to a kind of NO that can reduce in the flue gas of burning back
XContent, and reach the burner with high efficiency of energy-conserving and environment-protective.
Background technology
At present, the burner of the industrial furnace of the factory of each petrochemical industry type employing all is made up of burner shell, quirk brick, Fuel lance.Its operation principle is that fuel is mixed with combustion air in the quirk brick, and flame is in the radiation chamber internal combustion of heating furnace, and conducts heat through flame radiation the heated medium in the boiler tube is heated, and generally is to improve thermic load through the length that prolongs flame.Because the flame in radiation chamber is long, make the temperature field in the radiation chamber inhomogeneous also inhomogeneous with calorific intensity boiler tube, it is too high to produce localized heat intensity, causes heated medium local coking in heating process, influences normal production run.The burner that some overheavy firings now also occur because fuel oxygen-enriched combusting and conflagration produce high temperature, causes NO in the gas fume after burning product
XThe content severe overweight, do not reach the environmental protection purpose that reduces exhaust contaminant.
Therefore, how to found the high and low NO of a kind of efficiency of combustion
XThe burner with high efficiency of content, real one of the current important research and development problem that belongs to, also becoming the current industry utmost point needs improved target.
Summary of the invention
The purpose of the utility model is, a kind of burner with high efficiency is provided, and can improve burning, improves burn-off rate, reduces the NO in the flue gas of burning back
XContent reaches the effect of energy-conserving and environment-protective.
The purpose of the utility model and to solve its technical problem be that technical scheme below adopting realizes.A kind of burner with high efficiency according to the utility model proposes is characterized in that it comprises: wind inlet channel; Burner shell, wind inlet channel are welded in the middle and lower part of burner shell; Precombustion chamber is arranged in the burner shell; The combustion air distributor chamber is arranged at the bottom of precombustion chamber; Cyclone is arranged at the bottom of precombustion chamber, and is supported by the spray gun guide pipe; A plurality of afterburning wind enter the hole, are arranged at the sidewall of precombustion chamber, and communicate with precombustion chamber; The cigarette flame sprays trunnion, is arranged at the top of precombustion chamber; The smoke backflow hole is arranged at the exit that the cigarette flame sprays trunnion; Fire hole links to each other with the combustion air distributor chamber; Flame-observing hole links to each other with the combustion air distributor chamber; And thermal insulation layer, be attached to the burner shell inwall.
The purpose of the utility model and solve its technical problem and can also adopt following technical measures to come further to realize.
Aforesaid burner with high efficiency, wherein precombustion chamber is surrounded by refractory brick.
Aforesaid burner with high efficiency, the height that wherein many row's afterburning wind enter the hole is different.
Aforesaid burner with high efficiency, wherein cigarette flame injection trunnion and smoke backflow hole are processed by corundum refractory brick.
The utility model compared with prior art has tangible advantage and beneficial effect.By technique scheme, the utility model burner with high efficiency has advantage and beneficial effect at least: the utility model can improve the burn-off rate of fuel combustion, improves the thermic load and the thermal efficiency of heating furnace, effectively suppresses NO in the flue gas
XGeneration reduce disposal of pollutants, reach the purpose of energy-conserving and environment-protective.
Above-mentioned explanation only is the general introduction of the utility model technical scheme; In order more to know the technological means of understanding the utility model; And can implement according to the content of specification, and for let the above-mentioned of the utility model with other purposes, feature and advantage can be more obviously understandable, below special act preferred embodiment; And conjunction with figs., specify as follows.
Description of drawings
Fig. 1 is the vertical section structural map of the utility model burner with high efficiency.
The specific embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked; Below in conjunction with accompanying drawing and preferred embodiment; To its specific embodiment of burner with high efficiency, structure, characteristic and the effect thereof that proposes according to the utility model, specify as after.
See also shown in Figure 1; Be the vertical section structural map of the utility model burner with high efficiency, burner with high efficiency comprises that wind inlet channel 1, burner shell 2, precombustion chamber 3, combustion air distributor chamber 4, cyclone 5, spray gun guide pipe 6, a plurality of afterburning wind enter hole 7, the cigarette flame sprays trunnion 8, smoke backflow hole 9, fire hole 10, flame-observing hole 11 and thermal insulation layer 12.
Above-mentioned wind inlet channel 1 is welded in the middle and lower part of burner shell 2; Be close to burner shell 2 inner walls and adhere to thermal insulation layer 12; Precombustion chamber 3 is arranged in the burner shell 2, is surrounded by the refractory brick in the burner shell 2; Combustion air distributor chamber 4 is arranged at the bottom of precombustion chamber 3; The cyclone 5 that the precombustion chamber bottom has spray gun guide pipe 6 to support; The afterburning wind of the differing heights of row more than the sidewall of precombustion chamber 3 is provided with enter hole 7 and communicate with precombustion chamber; Precombustion chamber 3 tops are provided with the cigarette flame injection trunnion 8 that corundum refractory brick is processed; The exit of spraying trunnion 8 at the cigarette flame is provided with smoke backflow hole 9; Fire hole 10 links to each other with combustion air distributor chamber 4 with flame-observing hole 11.
The utility model is when work, and at first fuel is through lance ejection, and combustion air is divided into two-way through wind inlet channel 1 by combustion air distributor chamber 4; Housing 2 inwalls adhere to thermal insulation layer 12 reducing the heat radiation of combustion air, and combustion air is leaded up to cyclone 5 and fuel mix, changes the aspect that fuel mixes with air; Form swirl-flow premixed combustion gas, pre-mixing gas combustion is in precombustion chamber 3 internal combustion, and premixed combustion fuel is through in the precombustion chamber 3 during differing heights; Another road combustion air advances hole 7 classifications through the afterburning wind by precombustion chamber 3 sidewalls and supplies with an amount of air burning, and high temperature cigarette flame sprays trunnion 8 ejection at a high speed through the cigarette flame then, forms very strong negative pressure field at the spout place; (burner hearth promptly is meant the radiation chamber of heating furnace with the stove hall; Because burner with high efficiency is a firing equipment of heating furnace, be installed on the bottom of heating furnace radiation chamber, spout is vertically upward; Flame and product after its burning spray to radiation chamber) in the high temperature cigarette flame that ejects through 9 suctions of smoke backflow hole of flue gas; In the heating-furnace hall, form two smoke backflow cyclical fields of size,, significantly increased the radiant heat transfer of flue gas boiler tube through the heat release and the endothermic process of high-temperature flue gas in burner hearth; Make full use of the emission of gas radiation energy and absorb the characteristics that in whole gas volume, to carry out; Strengthen the radiant heat transfer of three atomic gas in the interior high-temperature flue gas of radiation chamber and improve the distribution of radiation chamber temperature field, improve boiler tube calorific intensity uniformity, effectively suppressed NO simultaneously
XThereby generation reach and improve heating furnace thermic load and thermal efficiency purpose, and improved burn-off rate and practiced thrift fuel, reduced the discharge capacity of NOx in the flue gas, also realized the target of energy-conserving and environment-protective.
Burner with high efficiency can make the reduced thickness of flame front improve the primary combustion speed of fuel; Flue gas time of staying in flame front is the high-temperature region shortens; In the quirk of precombustion chamber 3, form strong swirl flame; Combustion air is provided in the flame combustion process stage by stage, makes burning deviation theory equivalent proportion, flame is in combustion with meagre oxygen and has reduced flame high-temperature region temperature.The high-speed jet that utilizes high-temperature flue gas to form, inhaling the partial combustion flue gas back into going into burner is smoke backflow, makes inert gas content increase in the combustion zone, because of the concentration that flue gas absorbs heat and diluted oxygen, burning velocity and temperature is reduced.Because flue gas recirculation reduces flue gas NOx content, effectively suppresses nitrogen oxide and energy-conservation double effects.
Burner with high efficiency makes the burning of fuel clean-burning fuel in quirk reach (ordinary burner or the energy-saving burner burn-off rate in burner is about 30%) about 80% under low excess air coefficient; Under the situation of single fire fuel gas, approach flameless combustion, flame is short and small powerful and vigorous.The high-temperature flue gas that burning forms forms mandatory convection circulation flow field with higher speed ejection in radiation chamber, through strengthening CO
2, H
2The radiation of three atomic gas such as O and the mechanism that absorbs heat; To greatest extent heat energy is passed to heated medium (being fuel); Improving boiler tube (is radiation chamber comb in the heating furnace; It is done to use to be delivered to through boiler tube as heated medium and is heated to technological temperature in the radiation chamber) calorific intensity of low-heat intensity area is meanwhile; Reduce the temperature and the calorific intensity in boiler tube localized hyperthermia high-heat strength zone, make boiler tube even with radially calorific intensity and tube wall temperature, can make the heating furnace thermic load improve 15% to 30% axially.And, when reducing the radiation chamber outlet temperature, also reduce boiler tube tube wall peak temperature, thus the service life that can improve boiler tube.
Return the above, the utility model can effectively improve burning, improves burn-off rate, reduces the NO in the flue gas of burning back
XContent reaches the effect of energy-conserving and environment-protective.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any pro forma restriction; Though the utility model discloses as above with preferred embodiment, yet be not that any professional and technical personnel of being familiar with is not in breaking away from the utility model technical scheme scope in order to qualification the utility model; When the technology contents of above-mentioned announcement capable of using is made a little change or is modified to the equivalent embodiment of equivalent variations; In every case be the content that does not break away from the utility model technical scheme, to any simple modification, equivalent variations and modification that above embodiment did, all still belong in the scope of the utility model technical scheme according to the technical spirit of the utility model.
Claims (4)
1. burner with high efficiency is characterized in that it comprises:
Wind inlet channel (1);
Burner shell (2), wind inlet channel (1) is welded in the middle and lower part of burner shell (2);
Precombustion chamber (3) is arranged in the burner shell (2);
Combustion air distributor chamber (4) is arranged at the bottom of precombustion chamber (3);
Cyclone (5) is arranged at the bottom of precombustion chamber (3), and is supported by spray gun guide pipe (6);
Many row's afterburning wind enter hole (7), are arranged at the sidewall of precombustion chamber (3), and communicate with precombustion chamber (3);
The cigarette flame sprays trunnion (8), is arranged at the top of precombustion chamber (3);
Smoke backflow hole (9) is arranged at the exit that the cigarette flame sprays trunnion (8);
Fire hole (10) links to each other with combustion air distributor chamber (4);
Flame-observing hole (11) links to each other with combustion air distributor chamber (4); And
Thermal insulation layer (12) is attached to burner shell (2) inwall.
2. burner with high efficiency according to claim 1 is characterized in that wherein precombustion chamber (3) is surrounded by refractory brick.
3. burner with high efficiency according to claim 1 is characterized in that wherein a plurality of afterburning wind advance the height difference in hole (7).
4. burner with high efficiency according to claim 1 is characterized in that wherein the cigarette flame sprays trunnion (8) and smoke backflow hole (9) are processed by corundum refractory brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201000015U CN202125949U (en) | 2011-04-06 | 2011-04-06 | Efficient combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201000015U CN202125949U (en) | 2011-04-06 | 2011-04-06 | Efficient combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202125949U true CN202125949U (en) | 2012-01-25 |
Family
ID=45489015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201000015U Expired - Lifetime CN202125949U (en) | 2011-04-06 | 2011-04-06 | Efficient combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202125949U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051763A (en) * | 2016-06-24 | 2016-10-26 | 洛阳乐邦石化设备有限公司 | Enhanced low nox burner |
| CN107620962A (en) * | 2017-08-23 | 2018-01-23 | 广东宝杰环保科技有限公司 | A kind of biogas low NO |
| CN111442267A (en) * | 2020-05-13 | 2020-07-24 | 广东省特种设备检测研究院顺德检测院 | Low-nitrogen energy-saving gas boiler |
-
2011
- 2011-04-06 CN CN2011201000015U patent/CN202125949U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106051763A (en) * | 2016-06-24 | 2016-10-26 | 洛阳乐邦石化设备有限公司 | Enhanced low nox burner |
| CN106051763B (en) * | 2016-06-24 | 2018-08-14 | 洛阳乐邦石化设备有限公司 | Enhanced low NOxBurner |
| CN107620962A (en) * | 2017-08-23 | 2018-01-23 | 广东宝杰环保科技有限公司 | A kind of biogas low NO |
| CN107620962B (en) * | 2017-08-23 | 2018-08-31 | 广东宝杰环保科技有限公司 | A kind of biogas low NO |
| CN111442267A (en) * | 2020-05-13 | 2020-07-24 | 广东省特种设备检测研究院顺德检测院 | Low-nitrogen energy-saving gas boiler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120125 |
|
| CX01 | Expiry of patent term |