CN201636855U - Fuel oil spray gun for tube-type heating furnace combustor - Google Patents
Fuel oil spray gun for tube-type heating furnace combustor Download PDFInfo
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- CN201636855U CN201636855U CN201020158364XU CN201020158364U CN201636855U CN 201636855 U CN201636855 U CN 201636855U CN 201020158364X U CN201020158364X U CN 201020158364XU CN 201020158364 U CN201020158364 U CN 201020158364U CN 201636855 U CN201636855 U CN 201636855U
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Abstract
The utility model belongs to the technical field of petrochemical engineering and provides a fuel oil spray gun of a tube-type heating furnace combustor. The fuel oil spray gun is provided with a tubular cylindrical shell (4), a tubular cylindrical inner shell (5), a fuel oil inlet (1) and a atomized steam inlet (2), wherein the tubular cylindrical shell (4) and the tubular cylindrical inner shell (5) are coaxially arranged; a fuel oil spray head (11) is arranged at one end of the tubular cylindrical shell (4); a structure for carrying out secondary atomization on fuel oil is arranged in the tubular cylindrical inner shell (5); a primary atomization structure is positioned at the front end of a primary atomization steam nozzle (3), and a secondary atomization structure is arranged at the front end of the primary atomization structure; and the primary atomization structure and the secondary atomization structure respectively comprise a reduced diameter section, an equal-diameter section and an expanded diameter section. The utility model ensures that the fuel oil obtains favorable atomization by adopting a multi-atomization structure, improves the initial combustion temperature of the fuel oil and achieves the basically complete combustion of the fuel oil.
Description
Technical field
The utility model belongs to the petrochemical technology field, relates generally to a kind of tubular heater fuel for burner oil spray gun.
Background technology
For tubular heater if expansion capability or improve the thermal efficiency significantly must adopt big technology reforming scheme, a large amount of investments, long transformation cycle.For reducing NO in the flue gas
XThe environmental protection research of (nitrogen oxide) content aspect not enough.Tubular heater is used very extensive in industry, as: industrial furnace, heating agent stove, boiler or the like, in physical refining process and have in the process of chemical reaction, all be unable to do without tubular heater, almost each process units all has tubular heater, heating furnace is in the equipment of petrochemical enterprise, and investment is big, the construction period is long.Along with the continuous development of China's Petrochemical, the continuous expansion of production capacity, energy-conservation and more and more strictness of environmental requirement.Adapt to this fast-developing measure that requires, the one, increase a stove again, with original stove parallel operation; The 2nd, shift old heating furnace onto and rebuild new stove; The 3rd, old stove undergoes technological transformation.But, adopt any scheme that many problems are all arranged:
If 1 has a local newly-built stove, be operated in parallel with original stove:
(1) the big long construction period of quantities can't be finished in the normal time between overhauls(TBO).
(2) construct in the place of the device of going into operation, construction safety is a big problem.
(3) investment of Jian Sheing is big.
(4) two stove parallel operations, the big thermal efficiency of radiation loss will reduce.And accomplish that steady production difficulty is big.
2, push over that old stove is rebuild new stove or old stove undergoes technological transformation (needing) if can reach production.
Therefore, heating furnace has become the bottleneck that improves output, energy-saving and cost-reducing and environmental protection in the petrochemical enterprise fast development.In order to adapt to the continuous development of China's Petrochemical, the trend that the continuous expansion of production capacity, energy-conservation and environmental requirement are more and more stricter, tubular heater will reach the purpose of augmentation of heat transfer, and the augmentation of heat transfer type burner of tubular heater is to be made of pre-burners, fuel gas spray gun and fuel oil spray gun.Therefore, use the tubular heater of fuel oil, reach the purpose of augmentation of heat transfer, just must realize by pre-burners, fuel oil spray gun as fuel.Yet the atomization of existing fuel oil spray gun, make the fuel oil atomization not reach desired level, in little combustion chamber, space, not only can not reach completing combustion substantially, can not form high temperature, the stream of cigarette flame at a high speed strand, do not reach the purpose of augmentation of heat transfer, and because of fuel oil combustion incomplete, can be in the place's coking of pre-burners outlet undergauge, make the heating furnace can't long-term operation.
Summary of the invention
For solving the problems of the technologies described above, the purpose of this utility model is to propose a kind of tubular heater fuel for burner oil spray gun.
The utility model is finished the following technical scheme that its invention task is taked:
A kind of tubular heater fuel for burner oil spray gun has the tubular cylinder shell body and the tubular cylinder inner housing of coaxial setting; Form secondary-atomizing steam steam chest between described tubular cylinder shell body and the tubular cylinder inner housing; Be provided with the fuel oil inlet that is communicated with the tubular cylinder inner housing, and the atomizing steam inlet be set, be provided with the fuel oil shower nozzle coaxial with it at the other end of tubular cylinder shell body at an end of described tubular cylinder shell body; Described fuel oil shower nozzle is a cone, and is provided with the fuel oil spray orifice on the top of fuel oil shower nozzle; End at the close fuel oil passage of described tubular cylinder inner housing is provided with mist generation nozzles; Be provided with secondary-atomizing steam fumarole at secondary-atomizing steam steam chest away from an end of fuel oil passage; In described tubular cylinder inner housing, be provided with the structure of fuel oil being carried out the two-stage atomizing, the primary atomization structure is positioned at the front end of primary atomization steam jet, and described primary atomization structure comprises the primary atomization diffuser of the primary atomization contraction section of undergauge, isodiametric primary atomization aditus laryngis section and hole enlargement; Front end in the primary atomization structure is provided with secondary atomizing structure; Described secondary atomizing structure is made of the secondary-atomizing diffuser of the secondary-atomizing contraction section of undergauge, isodiametric secondary-atomizing aditus laryngis section and hole enlargement.
A kind of tubular heater fuel for burner oil spray gun that the utility model proposes, adopt the structure that repeatedly atomizes to make fuel oil obtain good atomizing, and about making the burning indoor temperature up to 1600 ℃, improved the initial temperature of fuel oil combustion significantly, and in little combustion chamber, space, reach completing combustion substantially, form high temperature, the stream of cigarette flame at a high speed thigh, reach the augmentation of heat transfer effect of tubular heater and the purpose of long-term operation.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, fuel oil inlet, 2, the atomizing steam inlet, 3, the primary atomization steam jet, 4, tubular cylinder shell body, 5, the tubular cylinder inner housing, 6, the primary atomization contraction section, 7, primary atomization aditus laryngis section, 8, the primary atomization diffuser, 9, secondary-atomizing steam steam chest, 10, secondary-atomizing steam fumarole, 11, the fuel oil shower nozzle, 12, the fuel oil spray orifice, 13, secondary-atomizing diffuser, 14, secondary-atomizing aditus laryngis section, 15, the secondary-atomizing contraction section, 16, the fuel oil passage.
The specific embodiment
In conjunction with the accompanying drawings embodiment of the present utility model is illustrated:
As shown in Figure 1, a kind of tubular heater fuel for burner oil spray gun has the tubular cylinder shell body 4 and the tubular cylinder inner housing 5 of coaxial setting; Form secondary-atomizing steam steam chest 9 between described tubular cylinder shell body 4 and the tubular cylinder inner housing 5; Described tubular cylinder shell body 4 is provided with fuel oil inlet 1, and makes fuel oil pass through fuel oil passage 16 to be communicated with tubular cylinder inner housing 5; At an end of described tubular cylinder shell body 4 atomizing steam inlet 2 is set, is provided with the fuel oil shower nozzle 11 coaxial with it at the other end of tubular cylinder shell body 4; Described fuel oil shower nozzle 11 is a cone, and is provided with fuel oil spray orifice 12 on the top of fuel oil shower nozzle 11; End at described tubular cylinder inner housing 5 close fuel oil passages 16 is provided with primary atomization steam jet 3; Be provided with secondary-atomizing steam fumarole 10 at secondary-atomizing steam steam chest 9 away from an end of fuel oil passage 16; Described atomizing steam inlet 2 communicates with primary atomization steam jet 3 and secondary-atomizing steam steam chest 9; In described tubular cylinder inner housing 4, be provided with the structure of fuel oil being carried out the two-stage atomizing, the primary atomization structure is positioned at the front end of primary atomization steam jet 3, and described primary atomization structure comprises the primary atomization diffuser 8 of the primary atomization contraction section 6 of undergauge, isodiametric primary atomization aditus laryngis section 7 and hole enlargement; Front end in the primary atomization structure is provided with secondary atomizing structure; Described secondary atomizing structure is made of the secondary-atomizing diffuser 13 of the secondary-atomizing contraction section 15 of undergauge, isodiametric secondary-atomizing aditus laryngis section 14 and hole enlargement.
Fuel oil is entered by fuel oil inlet 1, via fuel oil passage 16, to primary atomization contraction section 6, by the primary atomization steam atomization by 3 ejections of primary atomization steam jet; Fuel oil after the atomizing through primary atomization aditus laryngis section 7 and primary atomization diffuser 8, has obtained atomizing for the second time for the first time; Fuel oil after the atomizing is atomized for the third time through secondary-atomizing contraction section 15, secondary-atomizing aditus laryngis section 14 and secondary-atomizing diffuser 13 for the second time; Fuel oil after the atomizing is further atomized by the secondary-atomizing steam of secondary-atomizing steam fumarole 10 ejections in the exit of secondary-atomizing diffuser 13 for the third time, and fuel oil obtains the 4th atomizing; Obtained atomizing for the 4th time fuel oil, through the cone of fuel oil shower nozzle 11, enter again and obtain the 5th atomizing after fuel oil spray orifice 12 quickens.Reach the fuel oil of good atomizing, spray into after the novel pre-burners and to mix burning promptly with air.The burning back forms about 1600 ℃ high temperature cigarette flame, has improved the initial temperature of fuel oil combustion significantly.Therefore, reach the fuel oil of good atomizing, as long as in greater than 0.01 second time, fuel oil just can reach completing combustion basically.High temperature cigarette flame after the burning, via novel pre-burners undergauge exit, spraying into burner hearth realizes restricted jet at a high speed, it is smooth to form the mandatory circulation of flue gas, reaches the augmentation of heat transfer effect of tubular heater, and guarantees long-term operation.
Claims (1)
1. tubular heater fuel for burner oil spray gun has the tubular cylinder shell body (4) and the tubular cylinder inner housing (5) of coaxial setting; Form secondary-atomizing steam steam chest (9) between described tubular cylinder shell body (4) and the tubular cylinder inner housing (5); Be provided with the fuel oil inlet (1) that is communicated with the tubular cylinder inner housing, and atomizing steam inlet (2) be set, be provided with the fuel oil shower nozzle (11) coaxial with it at the other end of tubular cylinder shell body (4) at an end of described tubular cylinder shell body (4); Described fuel oil shower nozzle (11) is a cone, and is provided with fuel oil spray orifice (12) on the top of fuel oil shower nozzle; End at the close fuel oil passage of described tubular cylinder inner housing (5) is provided with mist generation nozzles (3); Be provided with secondary-atomizing steam fumarole (10) at secondary-atomizing steam steam chest (9) away from an end of fuel oil passage; It is characterized in that: in described tubular cylinder inner housing (5), be provided with the structure of fuel oil being carried out the two-stage atomizing, the primary atomization structure is positioned at the front end of primary atomization steam jet (3), and described primary atomization structure comprises the primary atomization diffuser (8) of primary atomization contraction section (6), isodiametric primary atomization aditus laryngis section (7) and the hole enlargement of undergauge; Front end in the primary atomization structure is provided with secondary atomizing structure; Described secondary atomizing structure is made of the secondary-atomizing diffuser (13) of secondary-atomizing contraction section (15), isodiametric secondary-atomizing aditus laryngis section (14) and the hole enlargement of undergauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020158364XU CN201636855U (en) | 2010-04-14 | 2010-04-14 | Fuel oil spray gun for tube-type heating furnace combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020158364XU CN201636855U (en) | 2010-04-14 | 2010-04-14 | Fuel oil spray gun for tube-type heating furnace combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201636855U true CN201636855U (en) | 2010-11-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020158364XU Expired - Fee Related CN201636855U (en) | 2010-04-14 | 2010-04-14 | Fuel oil spray gun for tube-type heating furnace combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201636855U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563642A (en) * | 2012-02-14 | 2012-07-11 | 中国人民解放军国防科学技术大学 | Self-suction type bubble atomization fuel nozzle |
| CN103528073A (en) * | 2012-07-04 | 2014-01-22 | 中国石油化工股份有限公司 | Spray gun for incinerating highly-concentrated organic wastewater of acrylonitrile device |
| CN105090951A (en) * | 2015-07-01 | 2015-11-25 | 洛阳帝博石化装备有限公司 | Novel heavy oil spray nozzle |
| CN105299640A (en) * | 2015-12-04 | 2016-02-03 | 湖南三一路面机械有限公司 | Fuel oil burner |
-
2010
- 2010-04-14 CN CN201020158364XU patent/CN201636855U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563642A (en) * | 2012-02-14 | 2012-07-11 | 中国人民解放军国防科学技术大学 | Self-suction type bubble atomization fuel nozzle |
| CN103528073A (en) * | 2012-07-04 | 2014-01-22 | 中国石油化工股份有限公司 | Spray gun for incinerating highly-concentrated organic wastewater of acrylonitrile device |
| CN103528073B (en) * | 2012-07-04 | 2015-08-19 | 中国石油化工股份有限公司 | A kind of spray gun for burning acrylonitrile installation high concentrated organic wastewater |
| CN105090951A (en) * | 2015-07-01 | 2015-11-25 | 洛阳帝博石化装备有限公司 | Novel heavy oil spray nozzle |
| CN105090951B (en) * | 2015-07-01 | 2017-10-31 | 洛阳帝博石化装备有限公司 | A kind of heavy oil nozzle |
| CN105299640A (en) * | 2015-12-04 | 2016-02-03 | 湖南三一路面机械有限公司 | Fuel oil burner |
| CN105299640B (en) * | 2015-12-04 | 2017-09-22 | 湖南三一路面机械有限公司 | Oil burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20101117 Termination date: 20120414 |