CN2407006Y - Adjustable feeding atomizing nozzle for catalytic cracking heavy oil - Google Patents
Adjustable feeding atomizing nozzle for catalytic cracking heavy oil Download PDFInfo
- Publication number
- CN2407006Y CN2407006Y CN 99219391 CN99219391U CN2407006Y CN 2407006 Y CN2407006 Y CN 2407006Y CN 99219391 CN99219391 CN 99219391 CN 99219391 U CN99219391 U CN 99219391U CN 2407006 Y CN2407006 Y CN 2407006Y
- Authority
- CN
- China
- Prior art keywords
- steam
- atomizing
- nozzle
- catalytic cracking
- heavy oil
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The utility model relates to an adjustable feeding atomizing nozzle for catalytic cracking heavy oil. A nozzle forms a tubular cylinder, raw oil enters into a mixing section (6) from an inlet (2), first atomizing steam is mixed with the raw oil after entering into the mixing section from an inlet (4), the first atomizing steam passes through a nozzle hole (1) for secondarily atomizing steam and is mixed with the raw oil for strengthening once again, and the primary atomization of the raw oil can be obtained, the raw oil and the steam are sufficiently mixed and enter into a laryngeal opening section (8), and then, the mixture of the raw oil and the steam enters into a diffuser (9) again for further atomization. Secondary atomizing steam can be strengthened and atomized again by a steam nozzle hole (10) after entering into a second atomizing steam hole (17), the raw oil which is sufficiently atomized passes through an acute angle knife-edge (12) which is arranged on the top of an outlet (11), large granules which are generated by aggregation can be atomized again, and the yield of products can be increased.
Description
The utility model belongs to the petrochemical industry catalytic cracking unit, is specifically related to a kind of stock oil atomizing feed nozzle.
The stock oil atomizing feed nozzle is a vital environment division of petrochemical industry FCC riser, updating and develop along with heavy oil catalytic cracking process, the stock oil atomizing feed nozzle is also being updated and is being developed, and a cast, trunnion type, Y type, the spiral blade profile of ESSO Oil, the awl target type of Sun Oil Company and the nozzle of TOTAL company and the distribution template of other company, combined and all kinds of target type are arranged.The OPTIMIX nozzle of American UOP company can be used in heavy oil fluid catalytic cracking, but requires stock oil and atomizing steam to advance the preceding pressure of nozzle up to 1.3-1.4MPa, requires 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, and quantities is big too, and the nozzle price is expensive too, and therefore domestic existing production equipment is difficult to use.Homemade nozzle is owing to adopt single tube chamber charging admission mixed aerosol, and the discharge port head is square toes shape, and its material outlet linear speed is higher, and the visitor easily produces vibrations, even causes break-up of catalyst; Stock oil adopts primary steam axially to send into raw material to mix, atomize on the other hand, and its particle diameter is not ideal enough, and less at riser tube internal spraying coverage rate, raw material and catalyzer to contact the dead angle big, the riser tube generation is shaken.
The purpose of this utility model is the adjustable atomizing feed nozzle of a kind of heavy oil fluid catalytic cracking of design, improves the atomizing effect of stock oil, to adapt to the more and more heavier variation tendency of stock oil.
Another purpose of the present utility model is for cutting down the consumption of energy, to the different characteristics of its atomizing requirement of strength, being provided with regulating measure at different raw materials; Improve contacting of raw material and catalyzer, reduce the contact dead angle; Prevent the riser tube vibrations; Improve product yield.
The utility model is achieved in that the adjustable atomizing feed nozzle of heavy oil fluid catalytic cracking, comprise the tubular cylinder housing, opening for feed and steam inlet, the inner chamber body that stock oil is sent into the tubular cylinder housing by inlet is the mixing tube cavity, atomizing steam is from axial steam-in, be that the mixing tube cavity is sent in the primary atomization steam-in, stock oil and steam are in the mixing tube cavity, by the aditus laryngis section, expansion section sprays from material outlet, outer setting one outer tubular cylindrical shell at the tubular cylinder housing, form the ring-type outer chamber between outer tubular cylindrical shell and the tubular cylinder housing, on the tubular cylinder housing secondary-atomizing steam-in is set outside, between outer tubular cylindrical shell and the tubular cylinder housing promptly and the appropriate location between the inner chamber body barrier ring is set, form and intercept the chamber, form a left side, right two vapor mixing chambers radially accordingly, secondary-atomizing steam-in and primary atomization steam-in join with the outer tubular right cylinder respectively, steam is sent into from aixal admission mouth and secondary-atomizing steam-in simultaneously, be that steam is sent into from primary atomization steam-in and secondary-atomizing steam-in simultaneously, radially the steam entrance will be radially steam send into the stock oil that forms in the tubular cylinder and the mixing section of steam, the aditus laryngis section, expansion section, through thorough mixing, atomizing, the raw material after the atomizing is from the outlet ejection.
The showerhead of the adjustable atomizing feed nozzle of described heavy oil fluid catalytic cracking can be spheroid form, and the front portion of spheroid is provided with the atomized feed outlet and the edge of a knife, the spread angle α of atomized feed outlet
3＜90 °, the angle α on the edge of a knife of atomized feed outlet and the long limit of atomized feed outlet
4＜90 °.
The secondary-atomizing steam fumarole of the adjustable atomizing feed nozzle of described heavy oil fluid catalytic cracking, promptly secondary radially the atomizing steam spray orifice can be arranged between the exit end of expansion section and the atomized feed outlet, when secondary-atomizing steam fumarole is circular hole, aperture d=2-20 millimeter; During for strip hole, its width δ=2-20 millimeter, secondary-atomizing steam fumarole and interior tubular axis line promptly with the angle α of tubular cylinder housing axis
2＜90 °.
Circular angle also can be adopted in four limits of the shower nozzle outlet of the adjustable atomizing feed nozzle of described heavy oil fluid catalytic cracking.
The tubular cylinder housing of described mixing section is provided with radially steam fumarole, and promptly the mixing section position of tubular cylinder housing is provided with once radially atomizing steam spray orifice, radially the axis angle α of steam fumarole and mixing section
1＜90 °.
Owing to adopt as above technical scheme, the utlity model has following positively effect:
1. nozzle cold conditions test, the stock oil average atomizing particle size reaches about 45 microns;
2. eliminate the riser tube vibrations that cause because of feed nozzle;
3. reduce byproduct-coke and slurry oil productive rate, the heavy more effect of raw material is obvious more;
4. improve purpose product-gasoline, diesel oil and yield of liquefied gas;
5. the little 0.2-0.4Mpa of pressure drop;
6. the outlet jet velocity is low, wearing and tearing are little;
7. stock oil spray flow fraction of coverage on the riser tube cross section is big;
8. energy consumption is low, and stock oil and atomizing steam pressure can be little of 0.5Mpa, and when stock oil was long residuum, the atomizing steam consumption was 4%-6%;
9. gasoline and diesel yield sum improve 0.8%-1.5%, and yield of liquefied gas improves 0.8%-1.0%;
10. reduce coking yield 0.5%-1.0%;
11. deciding carbon, regenerated catalyst drops to 0.1% by 0.2%; Reclaimable catalyst is decided carbon and is dropped to 1.1% by 1.2%.
Below in conjunction with embodiment the utility model is described in detail:
Fig. 1 is the one-piece construction sectional view of the utility model nozzle;
Fig. 2 is the charging admission part-structure sectional view of the utility model nozzle;
Fig. 3 is the showerhead separation structure sectional view of the utility model nozzle;
Fig. 4 is the spread angle synoptic diagram of the shower nozzle ejiction opening of the utility model nozzle;
Fig. 5 is the end surface shape synoptic diagram of the shower nozzle ejiction opening of the utility model nozzle.
The adjustable atomizing feed nozzle of heavy oil fluid catalytic cracking, comprise tubular cylinder housing 15, tubular type stock oil inlet 2, primary atomization steam-in 4, shower nozzle 13 and stretch into the primary atomization vapor-nozzle 3 of tubular cylinder housing 15 inner chamber body, the inner chamber body of tubular cylinder housing 15 can be divided into mixing section 6 along the spray vapour direction of primary atomization vapor-nozzle 3, aditus laryngis section 8 and expansion section 9, the critical length of primary atomization vapor-nozzle 3 is positioned at the limit place 18 of tubular cylinder housing 15 inner chamber body, outer setting one outer tubular cylindrical shell 14 at tubular cylinder housing 15, tubular cylinder housing 15 can be described as interior pipe, outer tubular cylindrical shell 14 can be described as outer tube, outer tube and interior pipe are provided with one heart, form the ring-type outer chamber between outer tubular cylindrical shell 14 and the tubular cylinder housing 15, a barrier ring 7 is established in appropriate location between tubular cylinder housing 14 and the tubular cylinder housing 15 outside, to intercept primary atomization steam and secondary-atomizing steam, this barrier ring 7 will be divided into radially mixing steam steam chest 5 and secondary-atomizing steam steam chest 16 around the ring-type outer chamber of tubular cylinder housing 15 outside surfaces, the corresponding position of tubular cylinder housing 14 is provided with primary atomization steam-in 4 outside, secondary-atomizing steam-in 17 and shower nozzle 13, between the exit end of expansion section 9 and atomized feed outlet 11, be provided with a plurality of secondary-atomizing steam fumaroles 10 that are connected with secondary-atomizing steam steam chest 16, on mixing section 6 forward tubular cylinder housings 15, be provided with a plurality of radially mixing steam spray orifices 1 that are connected with mixing steam steam chest 5 radially, radially mixing steam spray orifice 1 is communicated with the inner chamber body of tubular cylinder housing 15, secondary-atomizing steam fumarole 10 is communicated with the exit portion of the expansion section 9 of tubular cylinder housing 15 inner chamber body, stock oil enters mixing section 6 by inlet 2, after primary atomization steam is entered by primary atomization steam-in 4, divide two-way respectively through primary atomization vapor-nozzle 3 and mixing steam steam chest 5 radially, mixing steam spray orifice 1 and enter mixing section 6 radially, atomizing steam is simultaneously from axial primary atomization steam-in 4 and secondary-atomizing steam-in 17, through mixing steam spray orifice 1 radially and radially secondary-atomizing steam fumarole 10 send into, mix, the stock oil of atomizing mixes with the secondary-atomizing steam of sending into by the secondary-atomizing steam fumarole 10 of circle distribution once more in the exit of expansion section 9, atomizing, last stock oil is from atomized feed outlet 11 ejections.
Described shower nozzle 13 is a spheroid form, has reduced vibrations, and shower nozzle 13 is arranged on the end of outer tubular cylindrical shell 14, and shower nozzle 13 can be connected as a single entity with outer tubular cylindrical shell 14, and the spheroid front portion is provided with the material outlet 11 and the edge of a knife 12, the spread angle α of atomized feed outlet 11
3＜90 °, the angle α on the edge of a knife 12 of atomized feed outlet and atomized feed outlet 11 long limits
4＜90 °, the stock oil that is fully atomized, by spherical shower nozzle 13 of nozzle and nozzle atomization material outlet 11 time, the meeting generation is gathered and is generated macrobead, and the top acute angle edge of a knife 12 of the atomized feed outlet 11 of nozzle is as last atomizing means, the stock oil that has atomized is atomized again because of gathering the macrobead that generates, guarantee final atomizing effect, jet exit adopts arc, increases spread angle, has reduced the dead angle that the spray flow of stock oil produces on the riser tube cross section as far as possible.
Described secondary-atomizing steam fumarole 10 is arranged between the exit end and atomized feed outlet 11 of expansion section 9, and secondary-atomizing steam fumarole is that circular hole is right, aperture d=2-20 millimeter; During for strip hole, its width δ=2-20 millimeter, the axis angle α of described secondary-atomizing steam fumarole 10 and tubular cylinder housing 15
2＜90 °.
For the intensity that prevents to atomize inhomogeneous, reduce the size distribution of stock oil atomizing, circular angle is adopted on four limits of described atomized feed outlet 11, is provided with a plurality of radially mixing steam spray orifices 1 on the tubular cylinder housing 15 of mixing section 6, axis angle＜90 of this spout 1 and mixing section 6 °.
Stock oil enters mixing section 6 from stock oil inlet 2, primary atomization steam is divided into two-way after being entered by primary atomization steam-in 4, the primary atomization vapor-nozzle 3 of leading up to enters mixing section 6, radially mixing steam steam chest 5 is passed through on another road, the a plurality of radially mixing steam spray orifices 1 that distribute along hoop on tubular cylinder housing 15 also enter mixing section 6, the two-way steam that enters mixing section 6 mixes with the raw material oil phase that enters mixing section 6, this process is tentatively atomized stock oil, the stock oil that is tentatively atomized, obtained acceleration through aditus laryngis section 8 again, and enter expansion section 9, obtain intensive mixing and fully atomizing in the exit that arrives expansion section 9.After secondary-atomizing steam is entered by secondary-atomizing steam-in 17 in addition, through secondary-atomizing steam steam chest 16, and by on the tubular cylinder housing 15 of expansion section 9 exit end, pressing a plurality of secondary-atomizing steam fumaroles 10 of circle distribution, make secondary-atomizing steam mix once more, atomize with the stock oil that leaves expansion section 9 and fully atomized, thereby reach reinforcement atomizing again, and by regulating the secondary-atomizing quantity of steam, it is adjustable to reach atomizing intensity.Last stock oil enters riser reactor and reacts from atomized feed outlet 11 ejection.
Claims (5)
1, the adjustable atomizing feed nozzle of a kind of heavy oil fluid catalytic cracking, form by tubular cylinder housing (15) and charging steam inlet, stock oil is sent into mixing tube cavity (6) by inlet (2), atomizing steam is sent into mixing tube cavity (6) from axial steam-in (4), stock oil and steam are in the mixing tube cavity, by aditus laryngis section (8), expansion section (9) sprays from material outlet (11), it is characterized in that: the adjustable atomizing feed nozzle of heavy oil fluid catalytic cracking, outer setting outer tubular cylindrical shell (14) at tubular cylinder housing (15), secondary-atomizing steam-in (17), appropriate location between outer tubular cylindrical shell (14) and the inner chamber body is by barrier ring (7), form and intercept the chamber, form accordingly radially vapor mixing chamber (16), (5), secondary-atomizing steam-in (17), and primary atomization steam-in (4) joins with outer tubular cylindrical shell (14), stock oil inlet (2) and primary atomization vapor-nozzle (3) join with inner chamber housing (15), steam is sent into from aixal admission mouth (4) and secondary steam mouth (17) simultaneously, steam entrance (1) radially, (10) charging feed oil and vapor mixing section (6), aditus laryngis section (8), expansion section (9), through thorough mixing, atomizing, the raw material after the atomizing is from outlet (11) ejection.
2, the adjustable atomizing feed nozzle of heavy oil fluid catalytic cracking as claimed in claim 1, it is characterized in that: the showerhead of the adjustable atomizing feed nozzle of described heavy oil fluid catalytic cracking is a spheroid form, the spheroid front portion is provided with the material outlet (11) and the edge of a knife (12), the spread angle α of atomized feed outlet (11)
3＜90, the edge of a knife (12) of atomized feed outlet and the angle α on the long limit of atomized feed outlet (11)
4＜90 °.
3, as the showerhead of the adjustable atomizing feed nozzle of heavy oil fluid catalytic cracking as described in the claim 1,2, it is characterized in that: the showerhead of described adjustable atomizing feed nozzle, secondary-atomizing steam fumarole (10) is arranged between the exit end and atomized feed outlet (11) of expansion section (9), when secondary-atomizing steam fumarole is circular hole, aperture d=2-20 millimeter, during for strip hole, its width δ=2-20 millimeter.The axis angle α of secondary-atomizing steam fumarole and interior pipe (15)
2＜90 °.
4, as claim 1,2, the adjustable atomizing feed nozzle of 3 described heavy oil fluid catalytic cracking, it is characterized in that: circular angle is adopted on four limits of shower nozzle outlet of described adjustable atomizing feed nozzle.
5, the adjustable atomizing feed nozzle of heavy oil fluid catalytic cracking as claimed in claim 1, it is characterized in that: described adjustable atomizing feed nozzle, be provided with radially steam fumarole (1) at mixing section (6), radially axis angle＜90 of steam fumarole (1) and mixing section (6) °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99219391 CN2407006Y (en) | 1999-08-31 | 1999-08-31 | Adjustable feeding atomizing nozzle for catalytic cracking heavy oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99219391 CN2407006Y (en) | 1999-08-31 | 1999-08-31 | Adjustable feeding atomizing nozzle for catalytic cracking heavy oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2407006Y true CN2407006Y (en) | 2000-11-22 |
Family
ID=34010330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99219391 Expired - Fee Related CN2407006Y (en) | 1999-08-31 | 1999-08-31 | Adjustable feeding atomizing nozzle for catalytic cracking heavy oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2407006Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920186B (en) * | 2009-06-11 | 2012-10-31 | 中国石油化工集团公司 | High treatment capacity feed atomizing nozzle |
| CN103160309A (en) * | 2011-12-16 | 2013-06-19 | 洛阳瑞泽石化工程有限公司 | Feeding nozzle for catalytic cracking test unit |
| CN103897721A (en) * | 2014-03-10 | 2014-07-02 | 沈庆成 | Feeding spray nozzle of raising pipe of high-efficiency catalytic cracking device and atomizing method |
| CN105195348A (en) * | 2015-09-11 | 2015-12-30 | 洛阳森德石化工程有限公司 | Abrasion retarding process of regeneration flue gas double-Venturi-structure spray nozzle |
| CN107282324A (en) * | 2016-03-31 | 2017-10-24 | 中国石油化工股份有限公司 | Nozzle and its manufacture method |
-
1999
- 1999-08-31 CN CN 99219391 patent/CN2407006Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920186B (en) * | 2009-06-11 | 2012-10-31 | 中国石油化工集团公司 | High treatment capacity feed atomizing nozzle |
| CN103160309A (en) * | 2011-12-16 | 2013-06-19 | 洛阳瑞泽石化工程有限公司 | Feeding nozzle for catalytic cracking test unit |
| CN103897721A (en) * | 2014-03-10 | 2014-07-02 | 沈庆成 | Feeding spray nozzle of raising pipe of high-efficiency catalytic cracking device and atomizing method |
| CN103897721B (en) * | 2014-03-10 | 2016-06-22 | 沈庆成 | A kind of efficient catalytic cracking unit riser feed nozzle and atomization method |
| CN105195348A (en) * | 2015-09-11 | 2015-12-30 | 洛阳森德石化工程有限公司 | Abrasion retarding process of regeneration flue gas double-Venturi-structure spray nozzle |
| CN105195348B (en) * | 2015-09-11 | 2018-07-27 | 洛阳森德石化工程有限公司 | A kind of abrasion of regenerated flue gas double-venturi structure nozzle slows down technique |
| CN107282324A (en) * | 2016-03-31 | 2017-10-24 | 中国石油化工股份有限公司 | Nozzle and its manufacture method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202265547U (en) | Catalytic cracking feeding spray nozzle | |
| US6098896A (en) | Enhanced efficiency nozzle for use in fluidized catalytic cracking | |
| CN201900063U (en) | Bubble atomizing nozzle | |
| KR101825252B1 (en) | External mixing pressurized two-fluid nozzle and a spray drying method | |
| CN201900064U (en) | Swirl atomizing nozzle | |
| CN101652186A (en) | Spray nozzle | |
| CN103666522B (en) | Catalytic cracking unit feed nozzle | |
| CN2407006Y (en) | Adjustable feeding atomizing nozzle for catalytic cracking heavy oil | |
| CN105921295A (en) | Feed atomization nozzle | |
| CN203791084U (en) | Novel catalytic cracking feeding spraying nozzle | |
| CN204607931U (en) | A kind of catalytic cracking multistage atomizing nozzle | |
| CN2259230Y (en) | Efficient liquid atomizer from two sources | |
| CN202786131U (en) | Atomizing nozzle | |
| CN201372270Y (en) | Heavy oil feed nozzle of FCCU | |
| CN1122098C (en) | Atomizing nozzle for feeding raw material in catalytic cracking | |
| CN2848368Y (en) | Heavy oil feeding atomization nozzle | |
| EP0318185A1 (en) | FCC feed nozzle design | |
| CN2156189Y (en) | Heavy oil working feeding jet tip | |
| CN1268718C (en) | High efficiency atomizing material feeding nozzle for heavy oil catalytic cracking | |
| CN1148266C (en) | Atomizing feed nozzle for petroleum processing | |
| CN201439516U (en) | Catalytic cracking feed nozzle | |
| CN208287976U (en) | Multiple entry gas liquid two-phase whirl feeds following spray atomizer | |
| CN201776201U (en) | Catalytic cracking feeding spray nozzle | |
| CN2439330Y (en) | Nozzle for atomizing feed of catalytic cracker | |
| CN2690055Y (en) | Heavy oil catalytic cracking raw material oil feeding atomizing nozzle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |