CN110822421A - Ignition device of combustor and ignition method thereof - Google Patents
Ignition device of combustor and ignition method thereof Download PDFInfo
- Publication number
- CN110822421A CN110822421A CN201911286579.1A CN201911286579A CN110822421A CN 110822421 A CN110822421 A CN 110822421A CN 201911286579 A CN201911286579 A CN 201911286579A CN 110822421 A CN110822421 A CN 110822421A
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- pipe
- nozzle
- oil
- air
- ignition device
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/38—Nozzles; Cleaning devices therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/40—Mixing tubes or chambers; Burner heads
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles For Spraying Of Liquid Fuel (AREA)
Abstract
The invention discloses an ignition device and an ignition method of a combustor, which are applied to the field of combustors, and the technical scheme is as follows: the oil nozzle comprises a nozzle, an oil pipe, an oil nozzle connected to one end of the oil pipe and an inner air pipe, wherein the inner air pipe is sleeved outside the oil pipe and forms an inner air cavity with the oil pipe; has the technical effects that: the oxygen content of the surrounding environment of the oil mist during combustion is improved, the combustion fullness of the oil mist is further improved, and the effects of energy conservation and environmental protection are achieved.
Description
Technical Field
The invention relates to the technical field of combustors, in particular to an ignition device of a combustor and an ignition method thereof.
Background
At present, an ignition device of a combustor in the market is generally an oil pipe and a nozzle, oil is atomized at the nozzle after passing through the oil pipe, then the oil mist is ignited to combust, and meanwhile, oil is continuously fed into the oil pipe to ensure the continuation of flame.
The above prior art solutions have the following drawbacks: when the oil mist is ignited, the oxygen content around the oil mist is insufficient, so that the oil mist is not combusted sufficiently, energy is wasted, and toxic substances are generated.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the ignition device of the combustor, which has the advantages of improving the combustion fullness of oil mist so as to achieve the effects of energy conservation and environmental protection.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides an ignition of combustor, includes nozzle, oil pipe, connects glib talker and interior tuber pipe in oil pipe one end, interior tuber pipe cover establish oil pipe outside and with oil pipe between form interior wind chamber, be equipped with first air intake on the interior tuber pipe, interior tuber pipe is established to the air-out end towards the one end of glib talker, the air-out end of glib talker and interior tuber pipe is connected simultaneously on the nozzle, be equipped with the spout on the nozzle.
Through the technical scheme, during ignition, oil is conveyed to the oil nozzle from the oil pipe and is dispersed into oil mist, meanwhile, air enters the inner air cavity from the first air inlet and is conveyed to the oil nozzle to be mixed with the oil mist and is sprayed out from the nozzle of the nozzle, so that the oxygen content of the surrounding environment of the oil mist during combustion is improved, the combustion filling degree of the oil mist is further improved, and the effects of energy conservation and environmental protection are achieved.
The invention is further configured to: and a mixing chamber is also arranged between the nozzle and the oil nozzle, and two ends of the mixing chamber are respectively connected with the nozzle and the inner air pipe in a clamping manner.
Through above-mentioned technical scheme, the air that the air-out end of interior tuber pipe is bloated and nozzle tip spun oil mist can be from the nozzle blowout and the burning again after the intensive mixing in the mixing chamber to improve the mixture degree of consistency between oil mist and the air, and then improve the area of contact between oil mist and the air, when burning like this, the oil mist can be more abundant by the burning, more energy-concerving and environment-protective.
The invention is further configured to: the inner air pipe is sleeved with an outer air pipe, a second air inlet is formed in the outer air pipe, an outer air cavity is formed between the outer air pipe and the inner air pipe, and air flow enters the outer air cavity from the second air inlet and is sprayed out along the periphery of the nozzle.
Through the technical scheme, when the mixed oil mist is sprayed out of the nozzle, the airflow in the outer air pipe is sprayed out of the periphery of the nozzle, and the oxygen content at the periphery of the oil mist is further improved by the airflow, so that the oil mist can be combusted fully.
The invention is further configured to: and a plurality of air injection holes are formed in the periphery of one end, close to the nozzle, of the outer air pipe, and the air injection holes are communicated with the outer air cavity.
Through above-mentioned technical scheme, a plurality of fumarole sets up along the periphery of nozzle, and when the fumarole blowout was followed to the air current in the tuber pipe in addition, can distribute at the oil mist periphery and form the brattice to play a collection effect to the oil mist, with the loss that reduces the oil mist, and can be abundant with the oil mist contact, with the combustion efficiency who improves the oil mist.
The invention is further configured to: the end, close to the nozzle, of the outer air pipe is provided with an outer spray pipe, the outer spray pipe is detachably connected to the outer air pipe, and the air jet hole is formed in the end part, far away from the outer air pipe, of the outer spray pipe.
Through above-mentioned technical scheme, outer spray tube can dismantle and be connected on outer tuber pipe to pull down outer spray tube fast in operator's later stage, and expose parts such as nozzle, mixing chamber and glib talker, thereby be convenient for operator's quick overhaul.
The invention is further configured to: the spout is equipped with a plurality ofly along the periphery of outer spray tube.
Through above-mentioned technical scheme, can go out even blowout from a plurality of spouts with the oil mist after the air mixing to improve the oil mist and outer tuber pipe spun air's contact surface, be favorable to the abundant burning of oil mist, reduce the inside insufficient possibility of burning of oil mist.
The invention is further provided that the nozzle is arranged obliquely, one end of the nozzle far away from the mixing chamber faces the gas orifice, and an acute angle α is formed between the central axis of the nozzle and the central axis of the gas orifice.
Through above-mentioned technical scheme, when the oil mist was spout, because the spout was kept away from the one end of mixing chamber and is faced the fumarole, consequently the oil mist is to flowing in the fumarole spun air, and the oil mist strikes on the air current this moment, can improve on the one hand and the air current between the contact rate, on the other hand can be dispersed along with the air current to further improve the area of contact between oil mist and the air, and then improved the burning degree of filling of oil mist greatly.
The invention is further configured to: and one ends of the inner air pipe and the oil pipe, which face the nozzle, are both made of high-temperature-resistant metal materials.
Through above-mentioned technical scheme, can improve interior tuber pipe and oil pipe towards the high temperature resistance of nozzle one end to reduce interior tuber pipe and oil pipe and to be heated the possibility of warping after long-time the use towards nozzle one end, improve the combustion stability of oil mist.
Another object of the present invention is to provide a combustion method using the ignition device of the burner, which can make full use of oil and reduce waste caused by insufficient combustion of oil in an initial high-pressure environment, thereby improving energy utilization.
The technical purpose of the invention is realized by the following technical scheme: a combustion method of an ignition device applying the burner comprises the following steps: the method comprises the following steps: introducing oil into an oil pipe, adjusting the oil pressure to 1-2.5 kg, blowing air into an inner air pipe and an outer air pipe simultaneously, forming oil mist by an oil nozzle, mixing the oil mist with the air in the inner air pipe, spraying the oil mist from a nozzle, and igniting the oil mist; step two: the oil pressure was adjusted again to a pressure of 10 kg.
Through above-mentioned technical scheme, light flame through 1~2.5 kg's low pressure earlier, can make full use of oil and carry out the initial combustion, then slowly adjust the oil pressure to 10kg, increase oil feed volume to increase flame to required size, such mode is compared in directly burning oil through high pressure, and oil that can be abundant reduces the oil and burns under initial stage high-pressure environment insufficiently and the waste that causes, thereby improves energy utilization.
In conclusion, the invention has the following beneficial effects:
1. the oxygen content of the surrounding environment of the oil mist during combustion is improved, so that the combustion fullness of the oil mist is improved, and the effects of energy conservation and environmental protection are achieved;
2. flame is ignited by 1-2.5 kg of low pressure, oil pressure is slowly adjusted to 10kg, oil inlet amount is increased, oil can be fully utilized, and energy utilization rate is improved.
Drawings
Fig. 1 is a schematic overall sectional structure of the present embodiment.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Reference numerals: 1. an oil pipe; 2. a nozzle tip; 3. an inner air duct; 31. an inner air cavity; 32. a first air inlet; 4. a nozzle; 41. a spout; 5. a mixing chamber; 6. an outer air duct; 61. a second air inlet; 62. an outer air cavity; 63. a gas injection hole; 64. an outer nozzle.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): the utility model provides an ignition of combustor, as figure 1, includes that tubulose oil pipe 1 of circle overlaps with coaxial and establishes at oil pipe 1 outside interior tuber pipe 3, forms interior wind chamber 31 between interior tuber pipe 3 and the oil pipe 1 this moment, and the one end of oil pipe 1 is connected with glib talker 2, and interior tuber pipe 3 is established to the air-out end towards the one end of glib talker 2, is equipped with first air intake 32 on the pipe wall of one side that interior tuber pipe 3 kept away from glib talker 2. Oil is led into oil pipe 1, and oil is dispersed into the oil mist when passing through glib talker 2, and the operator lets in air to first air intake 32 this moment, and the air passes through interior wind chamber 31 and flows out from the air-out end of interior tuber pipe 3, and this part of air and oil mist mix this moment, have improved the oxygen content around the oil mist.
As shown in fig. 1, a mixing chamber 5 is provided at an end of the inner air duct 3 near the nozzle tip 2, and the nozzle tip 2 and the inner air duct 3 are simultaneously communicated with the mixing chamber 5, so that the oil mist and the air can be mixed in the mixing chamber 5 to reduce the escape of the oil mist. One side of the mixing chamber 5, which is far away from the oil nozzle 2, is provided with a nozzle 4, two ends of the mixing chamber 5 are respectively clamped on the inner edge of the inner air pipe 3 and the outer edge of the nozzle 4, the nozzle 4 is provided with a nozzle 41, the nozzle 41 is provided with a plurality of nozzles along the circumference of the nozzle 4 in equal parts, the oil mist and the air blown out from the inner air pipe 3 are mixed in the mixing chamber 5 and are sprayed out from the nozzle 41 of the nozzle 4, and at the moment, the oil mist is ignited, because the oxygen content around the oil mist is higher, the oil mist can be easily ignited, the combustion degree of the oil mist can be improved, and the effects.
As shown in fig. 1, the outer coaxial sleeve of the inner air pipe 3 is provided with an outer air pipe 6, an outer air cavity 62 is formed between the outer air pipe 6 and the inner air pipe 3, one side of the outer air pipe 6, which is far away from the oil nozzle 2, is provided with a second air inlet 61, one end of the outer air pipe 6, which is close to the oil nozzle 2, is connected with an outer spray pipe 64 in a threaded manner, one end of the outer spray pipe 64, which is far away from the inner air pipe 3, is abutted against the nozzle 4, so that a limiting effect is realized on the nozzle 4, the mixing. A plurality of air injection holes 63 are equally formed in one end, close to the nozzle 4, of the outer air duct 6 along the periphery, each nozzle 41 at least corresponds to one air injection hole 63, and the air injection holes 63 are communicated with the outer air cavity 62, so that air in the outer air duct 6 can be sprayed out of the air injection holes 63 and mixed with oil mist sprayed out of the nozzle 4, and the oxygen content of the periphery of the oil mist is further improved.
Referring to fig. 1 and 2, the nozzle 41 of the nozzle 4 is disposed obliquely upward, the end of the nozzle 41 away from the mixing chamber 5 faces the gas orifice 63, and an acute angle α is formed between the central axis of the nozzle 41 and the central axis of the gas orifice 63, in this embodiment, the acute angle α is preferably 15 °, when the oil mist gas in the mixing chamber 5 passes through the nozzle 4 and the nozzle 41 of the nozzle 4, it can be dispersedly ejected outward and collide with the gas flow ejected from the outer nozzle 64, on one hand, the contact rate between the oil mist and the gas flow can be increased, on the other hand, the oil mist can be dispersed with the gas flow, thereby further increasing the contact area between the oil mist and the air, and further increasing the combustion abundance of the oil mist.
As shown in fig. 1, the outer nozzle 64, the inner air duct 3 and the end of the oil pipe 1 facing the nozzle 4 are made of a high temperature resistant metal material, such as alloy steel, to ensure the operational stability of the ignition device.
The implementation principle of the embodiment is as follows: an operator firstly introduces oil into the oil pipe 1, controls the oil pressure to be 1-2.5 kg, simultaneously blows air or oxygen from the first air inlet 32 and the second air inlet 61, the gas in the first air inlet 32 enters the mixing chamber 5 through the inner air cavity 31 and the air outlet end of the inner air pipe 3, the oil is dispersed into oil mist through the oil nozzle 2 and then is sprayed into the mixing chamber 5, and the oil mist is mixed with the gas, so that the oxygen content around the oil mist is increased. The uniformly mixed oil mist and gas are ejected outwards through the nozzle 41 on the nozzle 4, the air or oxygen entering from the second air inlet 61 is ejected through the outer air cavity 62 and the air ejecting holes 63, and the oil mist impacts the gas ejected from the air ejecting holes 63 and is fully mixed, so that the oxygen content around the oil mist is further improved, and the oil mist is ignited and can be ignited more easily, the oil mist can be combusted more fully, and the energy conservation and the environmental protection are realized.
Of course, since the oil pressure is not so high that the flame size may not be achieved, the operator may slowly increase the oil pressure in the oil pipe 1 to 10kg to increase the oil mist ejection rate and the ejection amount, thereby adjusting the flame to the desired size. Compared with the ignition mode of directly burning oil under high pressure, the ignition mode can fully utilize oil, reduce the waste caused by insufficient burning of oil under the initial high-pressure environment, and further improve the energy utilization rate.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. An ignition device for a burner, characterized by: including nozzle (4), oil pipe (1), connect glib (2) and interior tuber pipe (3) in oil pipe (1) one end, interior tuber pipe (3) cover establish oil pipe (1) outside and with oil pipe (1) between form interior wind chamber (31), be equipped with first air intake (32) on interior tuber pipe (3), interior tuber pipe (3) are established to the air-out end towards the one end of glib (2), the air-out end of glib (2) and interior tuber pipe (3) is connected simultaneously on nozzle (4), be equipped with spout (41) on nozzle (4).
2. The ignition device of a burner according to claim 1, characterized in that: still be equipped with mixing chamber (5) between nozzle (4) and glib talker (2), the both ends of mixing chamber (5) respectively with nozzle (4) and interior tuber pipe (3) joint.
3. The ignition device of the burner as claimed in claim 2, wherein: interior tuber pipe (3) overcoat is equipped with outer tuber pipe (6), be equipped with second air intake (61) on outer tuber pipe (6), form outer wind chamber (62) between outer tuber pipe (6) and interior tuber pipe (3), the air current is followed second air intake (61) get into in outer wind chamber (62) and along the periphery blowout of nozzle (4).
4. The ignition device of the burner as claimed in claim 3, wherein: and a plurality of air injection holes (63) are formed in one end, close to the nozzle (4), of the outer air pipe (6) along the periphery, and the air injection holes (63) are communicated with the outer air cavity (62).
5. The ignition device of the burner as claimed in claim 4, wherein: one end of the outer air pipe (6) close to the nozzle (4) is provided with an outer spray pipe (64), the outer spray pipe (64) is detachably connected to the outer air pipe (6), and the air injection hole (63) is formed in the end part, far away from the outer air pipe (6), of the outer spray pipe (64).
6. The ignition device of a burner according to claim 5, characterized in that: the plurality of nozzles (41) are arranged along the periphery of the outer nozzle (64).
7. The ignition device of the burner according to claim 6, wherein the nozzle orifice (41) is arranged obliquely, and one end of the nozzle orifice (41) away from the mixing chamber (5) faces the gas injection hole (63), and an acute angle α is formed between the central axis of the nozzle orifice (41) and the central axis of the gas injection hole (63).
8. The ignition device of a burner as claimed in claim 7, wherein: and one ends of the inner air pipe (3) and the oil pipe (1) facing the nozzle (4) are both made of high-temperature-resistant metal materials.
9. An ignition method using the ignition device of the burner as claimed in any one of claims 1 to 8, comprising the steps of:
the method comprises the following steps: introducing oil into an oil pipe, adjusting the oil pressure to 1-2.5 kg, blowing air into an inner air pipe and an outer air pipe simultaneously, forming oil mist by an oil nozzle, mixing the oil mist with the air in the inner air pipe, spraying the oil mist from a nozzle, and igniting the oil mist;
step two: the oil pressure was adjusted again to a pressure of 10 kg.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911286579.1A CN110822421A (en) | 2019-12-14 | 2019-12-14 | Ignition device of combustor and ignition method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911286579.1A CN110822421A (en) | 2019-12-14 | 2019-12-14 | Ignition device of combustor and ignition method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110822421A true CN110822421A (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911286579.1A Pending CN110822421A (en) | 2019-12-14 | 2019-12-14 | Ignition device of combustor and ignition method thereof |
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| CN (1) | CN110822421A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013839A (en) * | 2022-05-12 | 2022-09-06 | 中国航发四川燃气涡轮研究院 | Afterburning chamber fuel spray lance structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2305559Y (en) * | 1997-04-21 | 1999-01-27 | 新疆石油管理局独山子石油化工总厂 | Oil and gas combined burner |
| CN2767842Y (en) * | 2004-12-13 | 2006-03-29 | 吕连生 | High efficiency energy-saving combustor |
| CN102353050A (en) * | 2011-08-10 | 2012-02-15 | 大连经济技术开发区水国燃烧器有限公司 | Fuel oil burner |
| CN102865575A (en) * | 2012-09-21 | 2013-01-09 | 徐州艾迪科技有限公司 | Micro-explosion atomization oil gun |
| CN104235838A (en) * | 2014-09-10 | 2014-12-24 | 南京畅能源测控设备有限公司 | Bubble atomizing oil gun |
| CN106032907A (en) * | 2015-03-12 | 2016-10-19 | 宝山钢铁股份有限公司 | A blast furnace gas burner ignition device and method |
-
2019
- 2019-12-14 CN CN201911286579.1A patent/CN110822421A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2305559Y (en) * | 1997-04-21 | 1999-01-27 | 新疆石油管理局独山子石油化工总厂 | Oil and gas combined burner |
| CN2767842Y (en) * | 2004-12-13 | 2006-03-29 | 吕连生 | High efficiency energy-saving combustor |
| CN102353050A (en) * | 2011-08-10 | 2012-02-15 | 大连经济技术开发区水国燃烧器有限公司 | Fuel oil burner |
| CN102865575A (en) * | 2012-09-21 | 2013-01-09 | 徐州艾迪科技有限公司 | Micro-explosion atomization oil gun |
| CN104235838A (en) * | 2014-09-10 | 2014-12-24 | 南京畅能源测控设备有限公司 | Bubble atomizing oil gun |
| CN106032907A (en) * | 2015-03-12 | 2016-10-19 | 宝山钢铁股份有限公司 | A blast furnace gas burner ignition device and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013839A (en) * | 2022-05-12 | 2022-09-06 | 中国航发四川燃气涡轮研究院 | Afterburning chamber fuel spray lance structure |
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Application publication date: 20200221 |
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