CN201686665U - Atomizing nozzle used for feeding of heavy oil catalytic cracking unit - Google Patents
Atomizing nozzle used for feeding of heavy oil catalytic cracking unit Download PDFInfo
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- CN201686665U CN201686665U CN2010201583476U CN201020158347U CN201686665U CN 201686665 U CN201686665 U CN 201686665U CN 2010201583476 U CN2010201583476 U CN 2010201583476U CN 201020158347 U CN201020158347 U CN 201020158347U CN 201686665 U CN201686665 U CN 201686665U
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Abstract
The utility model belongs to the technical field of petrochemical industry, and relates to an atomizing nozzle used for feeding of a heavy oil catalytic cracking unit, which is a tubular cylinder formed by an outer pipe (13) and an inner pipe (14), and is provided with a spherical spray nozzle (11); the atomizing nozzle is further provided with a raw oil inlet (17), a primary atomizing steam inlet (1) and a secondary atomizing steam inlet (16); an atomizing raw oil outlet (9) is arranged at the spherical spray nozzle; the inner pipe (14) is internally provided with structures conducting two times of atomization to the raw oil, namely, a primary atomizing structure and a second atomizing structure; and the primary atomizing structure and the second atomizing structure respectively comprises an atomizing mixing section with shrunk diameter, a transitional section with equal diameter and an atomizing diffusion section with expanded diameter. The atomizing nozzle can be adaptive to the development tendency that the raw material is heavier, mixes and refines the vacuum residuum, expands the raw material source for catalytic cracking, and further improves the product yield.
Description
Technical field
The utility model belongs to the petrochemical technology field, relates generally to a kind of heavy oil catalytically cracking equipment charging atomizing nozzle.
Background technology
The economic benefit of catalytic cracking unit is the extremely important device that influences the refinery economic benefit, and the stock oil atomizing feed nozzle is one of catalytic cracking unit most important equipment.The quality of stock oil atomization technique not only directly has influence on the economic benefit of device, and directly has influence on the economic benefit of full factory.Along with updating of the development of heavy oil fluid catalytic cracking technology, particularly catalyst for heavy oil catalytic cracking, the continuous change that has adapted to catalytically cracked stock is heavy.And the charging of stock oil atomizing is just more and more difficult, and the quality of stock oil charging atomizing just seems very outstanding.Therefore, the improvement to existing stock oil atomizing feed nozzle just seems extremely important.
In the heavy oil catalytic cracking process evolution, the research and development of stock oil atomizing feed nozzle always there is interruption.The spiral blade profile of exhausted straight pipe type, trunnion type, Y type, ESSO Oil, the Sun Oil Company awl target type and the nozzle of TOTAL company and the distribution template of other company, combined and all kinds of target type in the past, all because of there being significant disadvantages, seldom be used, so just no longer narrated at this.Current reasonable heavy oil fluid catalytic cracking stock oil atomizing feed nozzle has the OPTIMIX nozzle of American UOP company, the KH type of China, BWJ, CS type, CCK type.
Said nozzle all has shortcoming separately.The OPTIMIX nozzle of American UOP company, though can be used in heavy oil fluid catalytic cracking, but require stock oil and atomizing steam to advance the preceding pressure of nozzle up to 1.3-1.4MPa, so just require whole stock oil feed system is transformed, for example, pump and power distribution system, interchanger, pipeline, valve, pipe fitting and corresponding instrument part, so not only investment is too big, quantities is big too, and the nozzle price is expensive too, and therefore domestic existing production equipment is difficult to use.The nozzle of domestic research and development though reached the leading level in the world, still needs constantly to overcome the deficiency, constantly develops.For example, the jet exit linear speed that has is higher, and nozzle wear is fast, even causes break-up of catalyst; Stock oil atomizing particle size and size distribution are not ideal enough, and the purpose product yield is not ideal enough.
Summary of the invention
Technical scheme
For solving the problems of the technologies described above, the purpose of this utility model is to propose a kind of heavy oil catalytically cracking equipment charging atomizing nozzle, makes it can adapt to the more and more heavier development trend of raw material, reaches and mixes refining vacuum residuum, enlarge the catalytically cracked material source, and further improve the purpose of purpose product yield.
The utility model is finished the following technical scheme that its invention task is taked:
A kind of heavy oil catalytically cracking equipment charging atomizing nozzle, the tubular cylinder of described nozzle for constituting by co-axial outer tube and interior pipe, and have spherical shower nozzle; Form secondary-atomizing steam steam chest between described outer tube and the interior pipe; Be provided with stock oil inlet, primary atomization steam-in and secondary-atomizing steam-in, and corresponding primary atomization steam-in is provided with the primary atomization vapor-nozzle; Described stock oil inlet and primary atomization vapor-nozzle and interior pipe join; Described secondary-atomizing steam-in and outer tube join; Described primary atomization steam-in, primary atomization vapor-nozzle are coaxial with spherical shower nozzle, and the place is provided with the atomized feed oil export and the edge of a knife at described spherical shower nozzle; In described, be provided with the structure of stock oil being carried out twice atomizing in the pipe, the primary atomization structure is positioned at the front end of primary atomization vapor-nozzle, and described primary atomization structure comprises the primary atomization expansion section of the primary atomization mixing section of undergauge, isodiametric primary atomization transition section and hole enlargement; Front end in the primary atomization structure is provided with the secondary-atomizing structure; Described secondary-atomizing structure is made of the secondary-atomizing expansion section of the secondary-atomizing mixing section of undergauge, isodiametric secondary-atomizing transition section and hole enlargement; Between exporting with atomized feed, the exit end of secondary atomizing expansion section is provided with secondary-atomizing steam fumarole.
Described secondary-atomizing steam fumarole is circular hole, and its aperture is 2～15mm.
The utility model adopts above technical scheme, has produced following beneficial effect:
1, nozzle cold conditions test, the stock oil average atomizing particle size reaches about 40 microns.
2, reduce byproduct-coke and slurry oil productive rate, the heavy more effect of raw material is obvious more.
3, improve purpose product---gasoline, diesel oil and yield of liquefied gas.
4, pressure drop is less than 0.5Mpa.
5, the low wearing and tearing of outlet jet velocity are little.
6, stock oil spray flow fraction of coverage on the riser tube cross section is big.
7, energy consumption is low, and stock oil and atomizing steam pressure can be little of 0.5Mpa; When stock oil was long residuum, the atomizing steam consumption was about 5.0%; When stock oil was vacuum residuum, the atomizing steam consumption was about 8.0%.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1, primary atomization steam-in, 2, primary atomization vapor-nozzle, 3, primary atomization mixing section, 4, primary atomization aditus laryngis section, 5, the primary atomization expansion section, 6, the secondary-atomizing mixing section, 7, secondary-atomizing aditus laryngis section, 8, secondary-atomizing expansion section, 9, atomized feed outlet, 10, the edge of a knife, 11, shower nozzle, 12, secondary-atomizing steam fumarole, 13, outer tube, 14, interior pipe, 15, secondary-atomizing steam steam chest, 16, secondary-atomizing steam-in, 17, stock oil inlet, 18, annular raw material grease chamber.
Embodiment
In conjunction with the accompanying drawings embodiment of the present utility model is illustrated:
As shown in Figure 1, a kind of heavy oil catalytically cracking equipment charging atomizing nozzle, described nozzle is pipe 14 tubular cylinders that constitute in being reached by co-axial outer tube 13, and has spherical shower nozzle 11; Form secondary-atomizing steam steam chest 15 between described outer tube 13 and the interior pipe 14; Be provided with stock oil inlet 17, primary atomization steam-in 1 and secondary-atomizing steam-in 16, and corresponding primary atomization steam-in 1 is provided with primary atomization vapor-nozzle 2; Described stock oil inlet 17 and primary atomization vapor-nozzle 2 join with interior pipe 14; Described secondary-atomizing steam-in 16 joins with outer tube 13; Described primary atomization steam-in 1, primary atomization vapor-nozzle 2 are coaxial with spherical shower nozzle 11, and the place is provided with the atomized feed oil export 9 and the edge of a knife 10 at described spherical shower nozzle; It is characterized in that: in described, be provided with the structure of stock oil being carried out twice atomizing in the pipe 14, promptly the front end at primary atomization vapor-nozzle 2 is provided with the primary atomization structure, described primary atomization structure comprises the primary atomization expansion section 5 of the primary atomization mixing section 3 of undergauge, isodiametric primary atomization transition section 4 and hole enlargement, and the spread angle of the angle of throat of described primary atomization mixing section 3 and primary atomization expansion section 5 is acute angle; Front end in the primary atomization structure is provided with the secondary-atomizing structure; Described secondary-atomizing structure comprises the secondary-atomizing expansion section 8 of the secondary-atomizing mixing section 6 of undergauge, isodiametric secondary-atomizing transition section 7 and hole enlargement, the angle of throat of described secondary-atomizing mixing section 6 is less than 60 °, the spread angle of secondary-atomizing expansion section 8 is less than 90 °, is provided with secondary-atomizing steam fumarole 12 between the exit end of secondary atomizing expansion section 8 exports 9 with atomized feed; Described secondary-atomizing steam fumarole 12 is circular hole, and its aperture is 2～15mm; Stock oil enters annular raw material grease chamber 18 from stock oil inlet 17, and enters one-level atomizing structure ringwise by the primary atomization steam atomizing of primary atomization vapor-nozzle 2 ejections, makes stock oil obtain atomizing for the first time; Stock oil behind primary atomization enters secondary atomizing structure and obtains atomizing for the second time; Stock oil after the atomizing is in secondary-atomizing expansion section 8 exits, by the secondary-atomizing steam fumarole spray 12 secondary-atomizing steam atomizings that go out, enters after atomized feed outlet 9 quickens by shower nozzle 11, and it is atomized again to spray into riser reactor; Minimum for the raw material that has atomized being gathered form oarse-grained tendency to drop to, so the atomized feed of the nozzle outlet top edge of a knife 10 is an acute angle.
Claims (2)
1. heavy oil catalytically cracking equipment charging atomizing nozzle, described nozzle be by co-axial outer tube (13) and in the tubular cylinder that constitutes of pipe (14), and have spherical shower nozzle (11); Form secondary-atomizing steam steam chest (15) between described outer tube and the interior pipe; Be provided with stock oil inlet (17), primary atomization steam-in (1) and secondary-atomizing steam-in (16), and corresponding primary atomization steam-in (1) is provided with primary atomization vapor-nozzle (2); Described stock oil inlet (17) and primary atomization vapor-nozzle (2) join with interior pipe (14); Described secondary-atomizing steam-in (16) joins with outer tube (13); Described primary atomization steam-in (1), primary atomization vapor-nozzle (2) are coaxial with spherical shower nozzle (11), are provided with the atomized feed oil export (9) and the edge of a knife (10) at described spherical shower nozzle place; It is characterized in that: in described, be provided with the structure of stock oil being carried out twice atomizing in the pipe (14), the primary atomization structure is arranged on the front end of primary atomization vapor-nozzle (2), and described primary atomization structure comprises the primary atomization expansion section (5) of primary atomization mixing section (3), isodiametric primary atomization transition section (4) and the hole enlargement of undergauge; Front end in the primary atomization structure is provided with the secondary-atomizing structure, and described secondary-atomizing structure is made of the secondary-atomizing expansion section (8) of secondary-atomizing mixing section (6), isodiametric secondary-atomizing transition section (7) and the hole enlargement of undergauge; Export between (9) with atomized feed at the exit end of secondary atomizing expansion section (8) and to be provided with secondary-atomizing steam fumarole (12).
2. a kind of heavy oil catalytically cracking equipment charging atomizing nozzle according to claim 1 is characterized in that: described secondary-atomizing steam fumarole (12) is circular hole, and its aperture is 2～15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201583476U CN201686665U (en) | 2010-04-14 | 2010-04-14 | Atomizing nozzle used for feeding of heavy oil catalytic cracking unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201583476U CN201686665U (en) | 2010-04-14 | 2010-04-14 | Atomizing nozzle used for feeding of heavy oil catalytic cracking unit |
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| CN201686665U true CN201686665U (en) | 2010-12-29 |
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| CN2010201583476U Expired - Fee Related CN201686665U (en) | 2010-04-14 | 2010-04-14 | Atomizing nozzle used for feeding of heavy oil catalytic cracking unit |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102827628A (en) * | 2012-09-13 | 2012-12-19 | 洛阳森德石化工程有限公司 | Heavy oil catalytic cracking feeding atomizing nozzle |
| CN102827627A (en) * | 2012-09-13 | 2012-12-19 | 洛阳森德石化工程有限公司 | Multistage atomized heavy oil catalytic cracking anti-coking nozzle |
| CN102840579A (en) * | 2012-08-08 | 2012-12-26 | 薛大源 | Compound energy saving oil gun |
| CN103212499A (en) * | 2013-03-27 | 2013-07-24 | 中北大学 | Multi-section type atomizing nozzle for oil film with water drops |
| CN103949026A (en) * | 2014-03-28 | 2014-07-30 | 北京喜安妮科技发展有限公司 | Water mist fire extinguishing system |
| CN104293372A (en) * | 2014-08-25 | 2015-01-21 | 洛阳帝博石化装备有限公司 | Heavy oil catalysis atomizing nozzle |
| CN104293373A (en) * | 2014-08-25 | 2015-01-21 | 洛阳帝博石化装备有限公司 | Heavy oil catalysis atomizing nozzle |
| CN105778978A (en) * | 2016-04-15 | 2016-07-20 | 洛阳森德石化工程有限公司 | Use method of multi-stage raw oil atomizing spray nozzle structure for heavy oil catalytic cracking |
| CN106010630A (en) * | 2016-06-27 | 2016-10-12 | 石宝珍 | Feed atomizing nozzle for catalytic cracking |
| CN106457289A (en) * | 2014-05-12 | 2017-02-22 | 标致雪铁龙集团 | Method for coating with real-time display |
| CN112337667A (en) * | 2020-10-14 | 2021-02-09 | 重庆力东机电有限公司 | Oil injection antirust device |
| CN113231212A (en) * | 2021-05-14 | 2021-08-10 | 内蒙古博大实地化学有限公司 | Atomizing spray head applied to urea product containing inhibitor and anticaking agent |
| CN114458931A (en) * | 2022-01-07 | 2022-05-10 | 上海工程技术大学 | Micro-lubricating device |
-
2010
- 2010-04-14 CN CN2010201583476U patent/CN201686665U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840579A (en) * | 2012-08-08 | 2012-12-26 | 薛大源 | Compound energy saving oil gun |
| CN102840579B (en) * | 2012-08-08 | 2015-05-27 | 薛大源 | Compound energy saving oil gun |
| CN102827628A (en) * | 2012-09-13 | 2012-12-19 | 洛阳森德石化工程有限公司 | Heavy oil catalytic cracking feeding atomizing nozzle |
| CN102827627A (en) * | 2012-09-13 | 2012-12-19 | 洛阳森德石化工程有限公司 | Multistage atomized heavy oil catalytic cracking anti-coking nozzle |
| CN103212499A (en) * | 2013-03-27 | 2013-07-24 | 中北大学 | Multi-section type atomizing nozzle for oil film with water drops |
| CN103949026A (en) * | 2014-03-28 | 2014-07-30 | 北京喜安妮科技发展有限公司 | Water mist fire extinguishing system |
| CN106457289B (en) * | 2014-05-12 | 2019-05-28 | 标致雪铁龙集团 | The method of real-time visual coating |
| CN106457289A (en) * | 2014-05-12 | 2017-02-22 | 标致雪铁龙集团 | Method for coating with real-time display |
| CN104293372B (en) * | 2014-08-25 | 2016-04-13 | 洛阳帝博石化装备有限公司 | Heavy-oil catalytic atomizing nozzle |
| CN104293373A (en) * | 2014-08-25 | 2015-01-21 | 洛阳帝博石化装备有限公司 | Heavy oil catalysis atomizing nozzle |
| CN104293372A (en) * | 2014-08-25 | 2015-01-21 | 洛阳帝博石化装备有限公司 | Heavy oil catalysis atomizing nozzle |
| CN105778978A (en) * | 2016-04-15 | 2016-07-20 | 洛阳森德石化工程有限公司 | Use method of multi-stage raw oil atomizing spray nozzle structure for heavy oil catalytic cracking |
| CN105778978B (en) * | 2016-04-15 | 2017-11-17 | 洛阳森德石化工程有限公司 | A kind of application method of the feedstock oil multistage atomizing nozzle arrangements of RFCC |
| CN106010630A (en) * | 2016-06-27 | 2016-10-12 | 石宝珍 | Feed atomizing nozzle for catalytic cracking |
| CN106010630B (en) * | 2016-06-27 | 2019-01-01 | 石宝珍 | A kind of atomizing nozzle for feeding raw material in catalytic cracking |
| CN112337667A (en) * | 2020-10-14 | 2021-02-09 | 重庆力东机电有限公司 | Oil injection antirust device |
| CN113231212A (en) * | 2021-05-14 | 2021-08-10 | 内蒙古博大实地化学有限公司 | Atomizing spray head applied to urea product containing inhibitor and anticaking agent |
| CN114458931A (en) * | 2022-01-07 | 2022-05-10 | 上海工程技术大学 | Micro-lubricating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101229 Termination date: 20160414 |