CN106010630B - A kind of atomizing nozzle for feeding raw material in catalytic cracking - Google Patents
A kind of atomizing nozzle for feeding raw material in catalytic cracking Download PDFInfo
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- CN106010630B CN106010630B CN201610476268.1A CN201610476268A CN106010630B CN 106010630 B CN106010630 B CN 106010630B CN 201610476268 A CN201610476268 A CN 201610476268A CN 106010630 B CN106010630 B CN 106010630B
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
- B01J8/085—Feeding reactive fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
- B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
- B05B7/0892—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point the outlet orifices for jets constituted by a liquid or a mixture containing a liquid being disposed on a circle
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G11/14—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G11/00—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
- C10G11/20—Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils by direct contact with inert heated gases or vapours
Abstract
A kind of catalytic cracking novel atomized feed nozzle, it includes spray head, trunnion, outer tube, inner tube, raw material oil-in and steam inlet, steam orifice plate；Steam carries out first time atomization to feedstock oil in mixed aerosol room, steam carries feedstock oil and enters trunnion by the contraction of contraction section circulation area, it is sprayed again by aditus laryngis section and diffuser, it is atomized so that steam carries out second to feedstock oil, steam carries the jet expansion that feedstock oil enters spray head, carries out third time atomization；The jet expansion of spray head carries steam when feedstock oil sprays and forms wide screen there are many spread pattern, is conducive to coming into full contact with, reacting for feedstock oil and catalyst, while effectively reducing the broken of catalyst.
Description
Technical field
The invention belongs to petroleum refining field catalytic cracking unit, the catalytic cracking for relating generally to a kind of multistage atomizing is novel
Feed nozzle.
Background technique
Raw material oil feeding atomizing nozzle is an important equipment of petroleum refining field catalytic cracking unit, and effect is:
First by feedstock oil it is broken, be atomized as a large amount of fine drop, then raw material oil droplet is injected to catalytic cracking riser reactor
In, it mixes, react with the catalyst in riser reactor.Raw material oil feeding atomizing nozzle currently used for catalytic cracking unit
Form have very much, for example, having branch cast, trunnion type, Y type, spiral blade profile, cone target type and all kinds of target type nozzles, domestic nozzle
There is single-tube nozzle, i.e., air inlet mixed aerosol is fed using single lumen, using effect is less desirable.
Nozzle makes reaction raw materials become droplet, it is therefore an objective to and energy Quick-gasifying simultaneously reacts, and atomization is not final purpose,
It improves reaction effect and is only target.It for the reaction result reached, that is, needs to make the liquid atomization, and needs to make to be atomized logistics
It is distributed in reactor, it is critically important for especially uniformly contacting with catalyst.
In addition, needing higher pressure drop and gas flow rate since the liquid mists such as feedstock oil to be made turn to fine particle.It is existing
Technology high speed gas-liquid atomization logistics be injected directly into reactor, catalyst is washed away be crushed it is more serious.
However in actual use, more or less there is following problems for said nozzle: first is that the atomization of feedstock oil
Effect needs to be further increased；Second is that feedstock oil in riser reactor is injected to by nozzle and catalyst contact surface is not wide,
Reaction effect is bad；Third is that there is the raw material oil droplet jet velocity of the atomization of nozzle ejection excessively high, keep catalyst breakage serious.
The present invention proposes a kind of catalytic cracking novel atomized feed nozzle, so that feedstock oil is obtained multistage atomizing, effectively disappears
Except major diameter drop, to reach atomizing particle size required by catalytic cracking process.Simultaneously to spray head the study found that spray head sprays
The feedstock oil for entering riser reactor contacts with catalyst, reacts insufficient, be due to previous jet expansion arrangement form not
Conducive to the diffusion of feedstock oil, the invention proposes four kinds of nozzle structure forms, the jet expansion center lines and nozzle of spray head two sides
Axis angle is 0-30 °, and it is 0-30 ° with radial direction angle, which makes feedstock oil that nozzle surface is deflected from middle part to two sides
Drop is spread after spraying into riser reactor from nozzle to two sides, forms wide screen, bigger with the contact surface of catalyst.Separately
Outside, jet expansion is provided with expansion segment, and circulation area expansion segment is passed through when raw material oil droplet sprays, since atomization gas density is small,
The case where slowing down rapidly with the increase of circulation area, reduce catalyst breakage.
Summary of the invention
The object of the present invention is to provide a kind of catalytic cracking novel atomized feed nozzles, can realize to the more of feedstock oil
Grade atomization effectively eliminates major diameter drop, while from broader screen is formed when nozzle ejection, so that feedstock oil and catalysis
Agent is more fully contacted, is reacted.
To solve the above problems, the technical scheme is that
A kind of catalytic cracking novel atomized feed nozzle, the nozzle include that spray head, trunnion, outer tube, inner tube, feedstock oil enter
Mouth, steam inlet and steam orifice plate；The steam orifice plate is arranged between trunnion and outer tube, steam orifice plate centre bore with
Inner tube is connected, and forms toroidal cavity between steam orifice plate, outer tube and inner tube and constitutes vaporium, and steam is arranged on vaporium
Entrance constitutes mixed aerosol room between steam orifice plate, inner tube outlet and trunnion contraction section entrance；The trunnion, which has, to be shunk
Range of atomization is expanded, that is, has expansion segment, aditus laryngis section and contraction section；The multiple steam fumaroles of steam orifice plate circle distribution, spray head
The multiple jet expansions of circle distribution.
The trunnion of the catalytic cracking novel atomized feed nozzle has multiple shrinkage expansion ranges of atomization, i.e., is formed with multiple groups
Expansion segment, aditus laryngis section and the contraction section of logistics acceleration-deceleration.
The steam orifice plate of above-mentioned catalytic cracking novel atomized feed nozzle is sprayed around the steam of the N number of φ D of inner tube circle distribution
Hole, N, D are determined by the treating capacity of feedstock oil.
Steam fumarole can be set on inner pipe.
Multiple jet expansions, the knot of jet expansion is arranged in the spray head circumference of the catalytic cracking novel atomized feed nozzle
Structure is set as wikipedia type, i.e., is made of contraction section, aditus laryngis section, expansion segment, which can make feedstock oil obtain third level atomization,
Deceleration area is formed in expansion segment simultaneously, and raw material oil droplet jet velocity is excessively high makes catalyst breakage is serious to ask for effective solution
Topic；The arrangement of jet expansion may be configured as the various arrangements shapes such as round uniformly distributed, oval or limitation vertical direction width arrangement
Formula；The surface at spray outlet end is designed as the section that steering angle is α in the horizontal direction, and α is 0-30 °, and jet expansion center line exists
Horizontal direction and spray head axis angle are β, and β is 0-30 °；Arrangement above carries steam after feedstock oil is sprayed by jet expansion
Sector is expanded to horizontal two sides, more wide steam screen is formed, so that feedstock oil be made sufficiently to be reacted with catalyst.
Multiple jet expansions, spray outlet end face water is arranged in the spray head circumference of the catalytic cracking novel atomized feed nozzle
Jet expansion above flat axis deflects down C1 angle in export direction；Outlet below the horizontal axis of spray outlet end face exists
Export direction upward deflects C2 angle；The outlet streams of different location are made to be pooled to flat area in reactor；Go out away from spray head
The corresponding different C1 and C2 numerical value in the outlet of mouth end face vertical center line different distance.
In the jet expansion inner surface or jet expansion contraction section inner surface or jet expansion contraction section and aditus laryngis section of spray head
Surface can be set to more clover shapes, preferentially be set as bunge bedstraw herb shape, which rush third level atomizing steam to feedstock oil
Hit, breaking capacity it is stronger.
Heated and have the feedstock oil of certain pressure to enter in mixed aerosol room through raw material oil-in, inner tube, steam is through steaming
Vapour entrance enters vaporium, and enters mixed aerosol room after accelerating by the multiple steam fumarole of circle distribution on steam orifice plate,
The feedstock oil for flowing into mixed aerosol room above by inner tube is impacted, is mixed, makes feedstock oil obtain being atomized for the first time, simultaneously
Since multiple steam fumaroles of circle distribution on steam orifice plate are around inner tube, form steamdrum round feedstock oil and carry at a high speed
Feedstock oil flowing reduces big drop in the aggregation in side wall region, strengthens atomizing effect；Steam carries feedstock oil and enters in trunnion,
Since the contraction section of trunnion is tapered, circulation area shrink after further through aditus laryngis section and expansion segment so that steam to feedstock oil into
The further impact of row is crushed, and so that feedstock oil is obtained second of atomization, since multiple groups expansion segment, aditus laryngis can be set in trunnion
Section and contraction section make steam carry the multiple acceleration-deceleration of feedstock oil, and impact grinding ability is stronger at this time, and atomizing effect is more preferable；It steams
Vapour carries feedstock oil and enters the jet expansion on spray head, since jet expansion has a contraction section, aditus laryngis section, circulation area shrink so that
Steam further impacts feedstock oil, is crushed in contraction section acceleration, forms third time atomization.It is atomized by three-level, it can
Major diameter drop is effectively eliminated, so that the feedstock oil into riser reactor comes into full contact with catalyst, reacts, to mention
High reaction yield.
Due to each jet expansion direction carried out design control, in the horizontal direction carry out the expansion of the angle β, vertical direction into
The angular direction row C1 and C2, which is flow at the atomization logistics spray distance L that reaction requires outside spray outlet end, to be converged, and porous outflow is made
Oil and gas logistics flat distribution band is formed in reactor, can adequately be contacted with the catalyst in reactor gasification, reaction.
C1 and C2 value is determined by L.
Catalytic cracking novel atomized feed nozzle of the invention, compared with prior art, have it is following the utility model has the advantages that
1, major diameter drop can be effectively eliminated to the three-level atomization of feedstock oil, to reach required by catalytic cracking process
Atomizing particle size；
2, the jet expansion arrangement form forms broader and flat steam oil gas after so that steam is carried feedstock oil ejection
Screen improves yield so that feedstock oil be made to be come into full contact with, be reacted with catalyst；
3, the jet expansion is provided with deceleration area, solves that raw material oil droplet jet velocity is excessively high to keep catalyst breakage serious
Problem；
4, it since the contraction section 11 of trunnion 6 is tapered, is carried further through steam in 10 circulation area contraction process of aditus laryngis section
The multiple acceleration-deceleration of feedstock oil increases the speed difference of gas and liquid, so that steam further impacts feedstock oil, breaks
It is broken, keep feedstock oil atomized；Steam carries feedstock oil and enters the jet expansion 8A on spray head 8, since jet expansion 8A has receipts
Contracting section 8D, aditus laryngis section 8C, circulation area is shunk so that steam further impacts feedstock oil, breaks in contraction section 8D acceleration
Broken, formation is atomized again.
Detailed description of the invention
Fig. 1-Fig. 9 is catalytic cracking novel atomized feed nozzle structure chart, specifically:
Fig. 1: catalytic cracking novel atomized feed nozzle structural schematic diagram；
Fig. 2: the catalytic cracking novel atomized feed nozzle structural schematic diagram that multiple groups scale section is arranged in trunnion 6；
The structural schematic diagram of Fig. 3: A-A cross-sectional view；
Fig. 4: steam fumarole 4A is arranged in the catalytic cracking novel atomized feed nozzle structural schematic diagram in inner tube 7；
Fig. 5-8: the schematic diagram of four kinds of structures of spray head 8；
The structural schematic diagram of Fig. 9: C-C cross-sectional view.
In figure: 1, raw material oil-in, 2, steam inlet, 3, vaporium, 4, steam orifice plate, 5, mixed aerosol room, 6, trunnion,
7, inner tube, 8, spray head, 9, expansion segment, 10, aditus laryngis section, 11, contraction section, 12, outer tube, 4A, steam fumarole, 8A, jet expansion,
8B, jet expansion expansion segment, 8C, jet expansion aditus laryngis section, 8D, jet expansion contraction section, α, spray outlet end surfaces level side
To tilt angle, β, jet expansion center line horizontal direction angle, A1, trunnion expansion segment angle, B1, trunnion contraction section angle,
A2, jet expansion expansion angle, B2, jet expansion converging angles, C1, spray head horizontal axis top jet expansion vertical direction incline
Oblique angle, C2, spray head horizontal axis lower section jet expansion vertical direction inclination angle, a, jet expansion vertical direction distributing position, b,
Jet expansion horizontal direction distributing position, the atomization logistics spray distance that L, reaction require, φ 1, jet expansion throat diameter, φ
2, leafy careless diameter, φ 3, trunnion aditus laryngis section diameter.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, it is intended to reader be helped to understand
The features of the present invention and essence, but the drawings and specific embodiments content is not intended to limit enforceable range of the invention.
As shown in Figure 1, a kind of catalytic cracking novel atomized feed nozzle, the nozzle includes spray head 8, trunnion 6, outer tube
12, inner tube 7, raw material oil-in 1, steam inlet 2 and steam orifice plate 4；The steam orifice plate 4 is arranged in trunnion 6 and outer tube
Between 12,4 centre bore of steam orifice plate is connected with inner tube 7, and toroidal cavity structure is formed between steam orifice plate 4, outer tube 12 and inner tube 7
At vaporium 3, and steam inlet 2 is set on vaporium 3, in steam orifice plate 4, the outlet of inner tube 7 and 6 contraction section of trunnion, 11 entrance
Between constitute mixed aerosol room 5；The trunnion 6 has shrinkage expansion range of atomization, that is, has expansion segment 9, aditus laryngis section 10 and shrink
Section 11；The multiple steam fumarole 4A of 4 circle distribution of steam orifice plate, the multiple jet expansion 8A of 8 circle distribution of spray head.
As shown in Fig. 2, the trunnion 6 of the catalytic cracking novel atomized feed nozzle can have multiple shrinkage expansions to be atomized
Area possesses multiple groups expansion segment 9, aditus laryngis section 10 and contraction section 11, be 2 groups in this example.
As shown in figure 3, the steam orifice plate 4 of above-mentioned catalytic cracking novel atomized feed nozzle is N number of around 7 circle distribution of inner tube
The steam fumarole 4A, N, D of φ D is determined by the treating capacity of feedstock oil.
As shown in figure 4, steam fumarole 4A can be located in inner tube 7.
As shown in Fig. 5,6,7, multiple jet expansion 8A are arranged in 8 circumference of spray head, and the structure setting of jet expansion 8A is trunnion
Formula is made of contraction section 8D, aditus laryngis section 8C, expansion segment 8B, the structure can make feedstock oil obtain the third level atomization, while
Expansion segment 8B forms deceleration area, the effective solution raw material oil droplet jet velocity excessively high problem for keeping catalyst breakage serious；Spray
The arrangement of mouth outlet 8A may be configured as the various arrangements forms such as round uniformly distributed, oval or limitation vertical direction width arrangement；
The surface of 8 outlet end of spray head is designed as the section that steering angle is α in the horizontal direction, and α is 0-30 °, and jet expansion 8A center line exists
Horizontal direction and spray head axis angle are β, and β is 0-30 °；After arrangement above makes steam carry feedstock oil by jet expansion 8A ejection
It is fan-shaped to be expanded to two sides, more wide steam screen is formed, so that feedstock oil be made sufficiently to be reacted with catalyst.
As shown in figure 9, the jet expansion 8A above 8 exit end face horizontal axis of spray head deflects down the angle C1 in export direction
Degree；Jet expansion 8A below 8 exit end face horizontal axis of spray head upward deflects C2 angle in export direction；Make different location
Outlet streams are pooled to flat area in reactor；Outlet away from 8 exit end face vertical centerline different distance of spray head is corresponding
Different C1 and C2 numerical value.
As shown in figure 8, the jet expansion 8A inner surface or jet expansion 8A contraction section 8D inner surface or jet expansion of spray head 8
8A contraction section 8D and aditus laryngis section 8C inner surface are set as more clover shapes, are preferentially set as bunge bedstraw herb shape, which makes third level mist
It is stronger to the impact of feedstock oil, breaking capacity to change steam.
It is heated and have the feedstock oil of certain pressure through raw material oil-in 1, inner tube 7 enter mixed aerosol room 5 in, steam warp
Steam inlet 2 enters vaporium 3, and enters mixing after accelerating by the multiple steam fumarole 4A of circle distribution on steam orifice plate 4
Spray chamber 5 impacts the feedstock oil for flowing into mixed aerosol room 5 above by inner tube 7, is mixed, feedstock oil is made to obtain first
Secondary atomization, simultaneously because multiple steam fumarole 4A of circle distribution form steamdrum round original around inner tube 7 on steam orifice plate 4
Material oil simultaneously carries at a high speed feedstock oil flowing, reduces big drop in the aggregation in side wall region, strengthens atomizing effect；Steam carries former
Material oil enters in trunnion 6, since the contraction section 11 of trunnion 6 is tapered, further through aditus laryngis section 10 and expansion after circulation area contraction
Section 9, so that steam further impacts feedstock oil, is crushed, makes feedstock oil obtain second of atomization, due in trunnion 6
Multiple groups expansion segment 9, aditus laryngis section 10 and contraction section 11 can be set, so that steam is carried the multiple acceleration-deceleration of feedstock oil, impact at this time
Breaking capacity is stronger, and atomizing effect is more preferable；Steam carries feedstock oil and enters the jet expansion 8A on spray head 8, due to jet expansion
8A has contraction section 8D, aditus laryngis section 8C, and circulation area is shunk so that steam accelerates to carry out further feedstock oil in contraction section 8D
Impact, broken, formation third time atomization.It is atomized by three-level, major diameter drop can be effectively eliminated, so that anti-into riser
The feedstock oil of device is answered to come into full contact with, react with catalyst, to improve reaction yield.
Due to having carried out design control to the direction each jet expansion 8A, the expansion of the angle β is carried out in the horizontal direction, in vertical direction
The progress angular direction C1 and C2, which is flow at the atomization logistics spray distance L that reaction requires outside 8 outlet end of spray head, to be converged, and porous flow is made
Oil and gas logistics out forms flat distribution band in reactor, and gasification, anti-can be adequately contacted with the catalyst in reactor
It answers.C1 and C2 value is determined by L.
Embodiment
One nozzle feedstock oil inlet amount 25t/h, 250 DEG C of feeding temperature, feed pressure 0.7MPa(G), reactor internal pressure
Power 0.2MPa(G)；Atomizing steam 1.0t/h, 250 DEG C of vapor (steam) temperature, steam pressure 0.8MPa(G).
Structure of the invention as shown in Figure 1, it is as follows that nozzle designs example:
1 specification DN80 of oil inlet, 2 specification DN50 of steam port, 6 outer diameter 132mm of trunnion, 7 outer diameter 89mm of inner tube, trunnion 6 are set
Set a shrinkage expansion section, 3=35mm of φ, B1=20 °, A1=10 °, 4A several N=10, φ D=8mm, 8A quantity=12, φ 1=
8mm, B2=15 °, A2=6 ° α=β=15 °, C1=C2=5 °, L=400mm, steam port 2 quantity of steam 900kg/h, 12 8A press Fig. 6 institute
The location arrangements shown, wherein a=65, b=110.
Claims (5)
1. a kind of catalytic cracking novel atomized feed nozzle, it includes spray head (8), trunnion (6), outer tube (12), inner tube (7), original
Expect oil-in (1), steam inlet (2) and steam orifice plate (4)；The steam orifice plate (4) is arranged in trunnion (6) and outer tube
(12) between, steam orifice plate (4) is connected with inner tube (7), and annular is formed between steam orifice plate (4), outer tube (12) and inner tube (7)
Cavity constitute vaporium (3), and on vaporium (3) be arranged steam inlet (2), steam orifice plate (4), inner tube (7) outlet with
Mixed aerosol room (5) are constituted between trunnion (6) contraction section (11) entrance；The trunnion (6) has shrinkage expansion range of atomization, i.e.,
There are expansion segment (9), aditus laryngis section (10) and contraction section (11)；It is characterized in that, the steam orifice plate (4) is around inner tube (7) circle
Week is distributed the steam fumarole (4A) of N number of diameter phi D, and N, D are determined by quantity of steam；Multiple jet expansions (8A) are arranged in spray head (8), respectively
The structure setting of jet expansion (8A) is to be made of contraction section (8D), aditus laryngis section (8C), expansion segment (8B)；Jet expansion (8A)
It is arranged in and is provided in round uniformly distributed, oval or limitation vertical direction width arrangement spread pattern on cross section.
2. catalytic cracking novel atomized feed nozzle as described in claim 1, which is characterized in that catalytic cracking novel atomized into
The trunnion (6) of material nozzle has multiple shrinkage expansion ranges of atomization, that is, has multiple groups expansion segment (9), aditus laryngis section (10) and contraction section
(11).
3. catalytic cracking novel atomized feed nozzle as described in claim 1, which is characterized in that the table of spray head (8) outlet end
Face be designed as in the horizontal direction inclination angle be α section, α be 0-30 °, jet expansion (8A) center line in the horizontal direction with spray head
Axis angle is β, and β is 0-30 °；It is fan-shaped to two sides after feedstock oil is sprayed from jet expansion (8A) that arrangement above carries steam
Expansion, forms wide steam screen, so that feedstock oil be made sufficiently to be reacted with catalyst.
4. catalytic cracking novel atomized feed nozzle as described in claim 1, which is characterized in that spray head (8) exit end face water
Jet expansion (8A) above flat axis deflects down C1 angle in export direction；Below spray head (8) exit end face horizontal axis
Jet expansion (8A) upward deflect C2 angle in export direction；It is pooled to the outlet streams of different location in reactor flat
Flat region；The corresponding different C1 and C2 numerical value in outlet away from spray head (8) exit end face vertical centerline different distance, C1 and C2 by
The atomization logistics spray distance L value that reaction requires determines.
5. catalytic cracking novel atomized feed nozzle as described in claim 1, which is characterized in that the jet expansion of spray head (8)
(8A) inner surface or jet expansion (8A) contraction section (8D) inner surface or jet expansion (8A) contraction section (8D) and aditus laryngis section (8C)
Inner surface is set as more clover shapes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610476268.1A CN106010630B (en) | 2016-06-27 | 2016-06-27 | A kind of atomizing nozzle for feeding raw material in catalytic cracking |
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| CN201610476268.1A CN106010630B (en) | 2016-06-27 | 2016-06-27 | A kind of atomizing nozzle for feeding raw material in catalytic cracking |
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| CN106010630B true CN106010630B (en) | 2019-01-01 |
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| CN107126831B (en) * | 2017-06-20 | 2023-04-21 | 佛山市三水新明珠建陶工业有限公司 | Injector for SNCR denitration system |
| CN109264753B (en) * | 2017-07-18 | 2021-08-17 | 国家能源投资集团有限责任公司 | Raw slurry spray gun, alumina clinker kiln and raw slurry spraying method |
| CN109385294B (en) * | 2017-08-08 | 2020-12-01 | 中国石油天然气股份有限公司 | Catalytic cracking nozzle and application |
| CN112354711A (en) * | 2020-12-16 | 2021-02-12 | 青岛诺诚化学品安全科技有限公司 | Inhibitor multistage atomization method |
| CN114849592B (en) * | 2022-05-11 | 2023-05-12 | 湖南长科诚享石化科技有限公司 | Method and system for pre-atomizing catalytic feed oil |
| CN114749296A (en) * | 2022-05-12 | 2022-07-15 | 鑫广绿环再生资源股份有限公司 | Urea solution atomizing spray gun |
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| CN201686665U (en) * | 2010-04-14 | 2010-12-29 | 洛阳高新柯恒石化技术有限公司 | Atomizing nozzle used for feeding of heavy oil catalytic cracking unit |
| CN202265547U (en) * | 2011-09-13 | 2012-06-06 | 郭伟 | Catalytic cracking feeding spray nozzle |
| 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 |
| CN105018131A (en) * | 2014-04-15 | 2015-11-04 | 洛阳德明石化设备有限公司 | Catalytic cracking apparatus and feeding spraying nozzle thereof |
| CN205999338U (en) * | 2016-06-27 | 2017-03-08 | 石宝珍 | A kind of feed nozzle |
-
2016
- 2016-06-27 CN CN201610476268.1A patent/CN106010630B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201686665U (en) * | 2010-04-14 | 2010-12-29 | 洛阳高新柯恒石化技术有限公司 | Atomizing nozzle used for feeding of heavy oil catalytic cracking unit |
| CN202265547U (en) * | 2011-09-13 | 2012-06-06 | 郭伟 | Catalytic cracking feeding spray nozzle |
| 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 |
| CN105018131A (en) * | 2014-04-15 | 2015-11-04 | 洛阳德明石化设备有限公司 | Catalytic cracking apparatus and feeding spraying nozzle thereof |
| CN205999338U (en) * | 2016-06-27 | 2017-03-08 | 石宝珍 | A kind of feed nozzle |
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| CN106010630A (en) | 2016-10-12 |
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