CN202063879U - Catalytic cracking feed nozzle - Google Patents
Catalytic cracking feed nozzle Download PDFInfo
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- CN202063879U CN202063879U CN2011201386788U CN201120138678U CN202063879U CN 202063879 U CN202063879 U CN 202063879U CN 2011201386788 U CN2011201386788 U CN 2011201386788U CN 201120138678 U CN201120138678 U CN 201120138678U CN 202063879 U CN202063879 U CN 202063879U
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Abstract
The utility model discloses a catalytic cracking feed nozzle, aiming to solve the problems of the existing nozzle such as larger atomized particle size, overhigh spraying speed and uneven atomization. The catalytic cracking feed nozzle is provided with a magnetizing mechanism and an atomizing mechanism, wherein the magnetizing mechanism is arranged at the front end of a feed pipe of the atomizing mechanism, the atomizing mechanism is provided with a nozzle body, a secondary steam inlet is arranged on the nozzle body, a spray head is arranged at the outlet end of the nozzle body, the other end of the nozzle body is sequentially connected with an eddy flow section taper pipe and an eddy flow section circular pipe which are coaxial with the nozzle body, primary steam distribution pipes are coaxially arranged in the nozzle body, the eddy flow section taper pipe and the eddy flow section circular pipe, a secondary steam distributor is arranged on an oil/gas pipe, at least a circle of steam distribution holes inclined towards the spray head is arranged on the primary steam distribution pipes, a cone head pipe and the secondary steam distributor, and the secondary steam distributor, the oil/gas pipe and the nozzle body form a secondary gas chamber.
Description
Technical field
The utility model relates to the used a kind of catalytic cracking feed nozzle of refining of petroleum industry catalytic cracking unit.
Background technology
In catalytic cracking (FCC) course of processing, the quality of feed nozzle performance distributes to cracking reaction, product and plays an important role.Wellatomized charging and high-temperature regenerated catalyst short-time contact, make the charging gasification rate fast, be swift in response, the liquid amount of carrying reduces on the catalyzer, improve yield of light oil, reduce coke yield, improve the product distribution, prevent overcracking, eliminate the coking phenomenon in the riser reactor, bring considerable economic.Therefore, both at home and abroad correlative study mechanism is continually developing always and is releasing new and effective catalytic cracking feed nozzle, with the needs that adapt to the catalytic cracking technology development and obtain bigger economic benefit.
At present both at home and abroad the catalytic cracking feed nozzle that uses is divided into following a few class substantially: the first kind is improved on wikipedia type nozzle basis and is formed, and is characterized in utilizing convergence-expansion shape venturi to improve gas flow rate and gas-liquid two-phase velocity contrast with the increase intensity (referring to CN2069757U) that atomizes as far as possible; Second class is target spray nozzle (referring to US4434049), its principle is that feed oil forms high-speed jet bump metallic target under the High Pressure Difference effect, carries out the atomizing first time with the crossflow effect again, forms the gas-liquid two-phase atomized flow, quicken at shower nozzle spout place at last, realize secondary-atomizing.This nozzle atomization intensity height, but need very high feed pressure and more atomizing steam, thereby energy consumption is higher, has increased the investment of production cost and scrap build; The 3rd class is a hybrid feed nozzle (referring to CN2054461U) in two venturis; The 4th class is two-fluid rotarytype injector (referring to CN2356752Y), has wherein adopted the two-phase swirler.
More than the shortcoming that exists of all kinds of nozzles be: atomizing particle size is bigger, and Suo Taier diameter (cold examination) is mostly more than 60 microns; The spouting velocity that has excessive (cause flowing instability and mechanical vibration occur), the atomizing that has is inhomogeneous; The required feed pressure of the nozzle that also has is higher, atomizing steam is more, causes energy consumption higher.
Summary of the invention
The purpose of this utility model provides a kind of catalytic cracking feed nozzle, to solve the higher and more energy consumption that causes of atomizing steam of the existing atomizing particle size of existing catalytic cracking feed nozzle is big, spouting velocity is excessive, atomizing is inhomogeneous, required feed pressure than problems such as height.
For addressing the above problem, the utility model provides a kind of catalytic cracking atomized feed nozzle, its technical scheme is: this catalytic cracking atomized feed nozzle comprises magnetizable body and atomising mechanism, magnetizable body is provided with magneticsubstance and mounting block, magnetizable body is arranged on the feed-pipe front end of atomising mechanism, and feed conduit links to each other with feed-pipe behind the magnetic field through magnetizable body formation.Atomising mechanism is provided with mouth body, feed-pipe, primary steam inlet, and the exit end of mouth body is provided with shower nozzle, and shower nozzle is provided with spout.It is characterized in that: the secondary steam inlet is set on the mouth body, the other end of mouth body connects the eddy flow section Taper Pipe and the eddy flow section pipe of setting coaxial with it successively, the other end of eddy flow section pipe is provided with capping, capping is provided with primary steam inlet co-axial with it, the mouth body, the interior primary steam distribution pipe that is coaxially arranged with it of eddy flow section Taper Pipe and eddy flow section pipe, be provided with the oil gas pipe between primary steam distribution pipe and the mouth body, the primary steam distribution pipe is provided with the conehead pipe at the end near shower nozzle, the other end is the primary steam inlet, one end of oil gas pipe is connected with eddy flow section Taper Pipe, the other end connects the secondary steam sparger, and the other end of secondary steam sparger is connected with the mouth body.The steam distribution hole of one circle to the direction inclination of shower nozzle is set on primary steam distribution pipe, conehead pipe and the secondary steam sparger at least, feed-pipe tangentially is connected on the eddy flow section pipe along eddy flow section pipe, form the eddy flow chamber between primary steam distribution pipe and eddy flow section pipe and the eddy flow section Taper Pipe, form hybrid chamber between primary steam distribution pipe and conehead pipe and oil gas pipe and the secondary steam sparger, form a secondary air chamber between secondary steam sparger, oil gas pipe and the mouth body.
The utility model is further characterized in that: described magnetizable body has one or more groups magneticsubstance, and every group of magneticsubstance divides two, is to be oppositely arranged, and its shape can be rectangle or square, circle or oval Any shape.
The utility model is further characterized in that: described magneticsubstance is that permanent magnet or other have ferromagnetic material and make, and as Nd-Fe-B rare earth permanent magnetic material, one side is the N utmost point, and another side then is the S utmost point.
The utility model is further characterized in that: the angle δ of the axial line of feed-pipe and nozzle axial line is 30～90 degree, the taper angle theta of eddy flow section Taper Pipe is 30～130 degree, the internal diameter of eddy flow section pipe is 1.1～2.5 with the ratio of the internal diameter of mouth body, the primary steam distribution pipe is provided with 1～60 circle primary steam distribution hole, every circle is provided with 2～30 steam distribution holes, the axial line in the steam distribution hole on the primary steam distribution pipe and the angle γ of nozzle axial line are 10～80 degree, the angle of taper α of conehead pipe is 10～90 degree, the conehead pipe is provided with 1～30 circle steam distribution hole, every circle is provided with 2～30 steam distribution holes, the axial line in the steam distribution hole on the conehead pipe and the angle β of nozzle axial line are 10～80 degree, the secondary steam sparger is taper, which is provided with 1～10 circle steam distribution hole, every circle is provided with 2～30 steam distribution holes, and the axial line in the steam distribution hole on the secondary steam sparger and the angle ε of nozzle axial line are 0～90 degree, and the diameter in steam distribution hole is 1～10 millimeter.
The utility model is further characterized in that: the steam distribution hole that is respectively provided to few 2 circles on primary steam distribution pipe, conehead pipe and the secondary steam sparger, distance s between primary steam distribution pipe and the conehead pipe two adjacent rings steam distribution hole is 10～60 millimeters, the angle ε that respectively encloses steam distribution hole and axis on the secondary steam sparger radially reduces from inside to outside successively along nozzle, and the differential seat angle of the angle ε of two adjacent rings steam distribution hole and axis is 10～45 degree.
The utility model is further characterized in that: the steam distribution hole of two adjacent rings all is staggeredly arranged on primary steam distribution pipe, conehead pipe and the secondary steam sparger.
The utility model compared with prior art has following beneficial effect: the utility model is in operating process, raw material is magnetized by the magnetic field that magnetizable body forms in feed conduit, because the effect in magnetic field, make raw material force of cohesion reduce, surface tension descends, thereby the decline of raw molecule potential barrier, intramolecule structure relaxation, viscosity are reduced, and these variations are improved the atomization of raw material.Raw material after the magnetization weakens its turbulence and level of disruption in the feed-pipe exit through the tangential injection eddy flow chamber of feed-pipe along eddy flow section pipe, and kinetic energy loss reduces.Charging is rotated mobile in the eddy flow chamber, enters hybrid chamber after eddy flow section Taper Pipe place quickens, and mixes with the atomizing steam of steam distribution hole ejection.Charging by the generate film, has increased the surface-area of liquid, the viscosity that has reduced liquid and surface tension under action of centrifugal force; Simultaneously, charging is broken under the instantaneous accidental shear action that the turbulent flow pulsation produces.In addition, rotatablely moving prolongs the movement locus of charging in hybrid chamber, has increased the mixing time with atomizing steam, has improved the utilization ratio and the atomizing effect of water vapor.The steam distribution hole of respectively enclosing on primary steam distribution pipe and the conehead pipe generally is a direction uniform distribution along the nozzle axial line, steam distribution hole on every circle generally is respectively around the circumferential direction uniform distribution of primary steam distribution pipe and conehead pipe, so atomizing steam is mixed with charging equably, form stable gas-liquid two-phase atomized flow.Atomizing steam is kept at an angle with the nozzle axial line during by the steam distribution hole ejection of tilting, and its resistance to flow is reduced, the injection differential pressure reduction.The secondary-atomizing steam of secondary steam sparger ejection at the hybrid chamber end radially along nozzle, ecto-entad is injected the gas-liquid two-phase atomized flow, can broken gas-liquid two-phase atomized flow at the liquid film that the oil gas inside pipe wall forms, avoid the appearance of big drop.Atomizing steam by the ejection of secondary-atomizing steam distributor is different along the speed of the radial direction of nozzle with the atomizing steam that is sprayed by the primary steam distribution pipe, thereby has increased the turbulence intensity of gas-liquid two-phase atomized flow, improves the gas-liquid blending effect.The secondary-atomizing steam distributor is arranged on the end of hybrid chamber simultaneously, on it respectively to enclose the steam distribution hole different with the angle of axis, atomizing steam avoids entering the viscous flow of the gas-liquid two-phase atomized flow of shower nozzle at the shower nozzle inwall with different angle directive shower nozzle inwalls, avoids big drop to occur.Last gas-liquid two-phase atomized flow is quickened at the spout place, then by the spout ejection, utilizes the gas expansion blast, and charging is atomized into very tiny drop.Like this, just can improve the contact area of charging and catalyzer, thereby improve the reaction condition of catalytic cracking unit, improve the lightweight oil productive rate of device and reduce the green coke amount.
The utility model catalytic cracking feed nozzle shows that after tested generally about 55 microns, the jet velocity at spout place is generally about 60 meter per seconds charging atomizing particle size (Suo Taier diameter).Atomizing is even, and evenly index can reach more than 3.And, only need to use lower feed pressure (to be generally 0.3～0.6MPa) and less atomizing steam (the atomizing steam consumption is generally 3～6 weight % of inlet amount), can to obtain good atomizing effect, so just reduced the energy consumption of nozzle.In addition, aforementioned atomizing steam and the charging mixed aerosol mode in hybrid chamber, when inlet amount to some extent during increase and decrease, the volumetric flow rate of oily vapour two phase flow changes less relatively, can obviously not influence atomization quality, thereby make that turndown ratio of the present utility model is good, reliability is high.Advantage simple in structure, easy to use, that be easy to promote that the utility model also has.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.The drawings and specific embodiments do not limit the claimed scope of the utility model.
Accompanying drawing and description of drawings
Fig. 1 is the magnetizable body synoptic diagram of the utility model catalytic cracking atomized feed nozzle.
Fig. 2 is the utility model catalytic cracking feed nozzle sectional view vertically.
Fig. 3 is the A-A revolved sectional view among Fig. 1.
Fig. 4 is the layout synoptic diagram in steam distribution hole on the secondary steam sparger.
Among Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the pairing structure of same reference numerals, its technical characterictic is identical.
Among the figure:
1-spout, 2-shower nozzle, 3-conehead pipe, 4-primary steam distribution pipe, 5-hybrid chamber, 6-feed-pipe, 7-primary steam inlet, 81-eddy flow section pipe, 82-eddy flow section Taper Pipe, 9-eddy flow chamber, 10-mouth body, 11-steam distribution hole, 12-capping, 13-secondary steam sparger, 14-oil gas pipe, 15-secondary air chamber, 16-secondary steam inlet, 20-feed conduit, the 21-magneticsubstance, the 22-mounting block.
Embodiment
The utility model catalytic cracking atomized feed nozzle referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4.This nozzle comprises magnetizable body and atomising mechanism.Magnetizable body is provided with magneticsubstance 21 and mounting block 22, and magnetizable body is arranged on feed-pipe 14 front ends of atomising mechanism, and feed conduit 20 links to each other with feed-pipe 6 behind the magnetic field through magnetizable body formation.
Atomising mechanism referring to Fig. 2, Fig. 3 and the utility model catalytic cracking feed nozzle shown in Figure 4.It is provided with mouth body 10, feed-pipe 6, primary steam inlet 7.The exit end of mouth body 10 is provided with shower nozzle 2, and shower nozzle 2 is provided with spout 1, and secondary steam inlet 16 is set on the mouth body 10.Wherein shower nozzle 2 is a conventional structure, and spout 1 can adopt existing flat mouthful or vesicular spout commonly used.
The other end of mouth body 10 connects the eddy flow section Taper Pipe 82 and the eddy flow section pipe 81 of setting coaxial with it successively; Eddy flow section Taper Pipe 82 wherein is a cone surface shape.Be coaxially arranged with primary steam distribution pipe 4 with it in mouth body 10, eddy flow section Taper Pipe 82 and the eddy flow section pipe 81, be provided with oil gas pipe 14 between primary steam distribution pipe 4 and the mouth body 10.Primary steam distribution pipe 4 is provided with conehead pipe 3 at the end near shower nozzle 2, and the other end is steam-in 7, and an end of oil gas pipe 14 is connected with eddy flow section Taper Pipe 82, and the other end connects secondary steam sparger 13, and secondary steam sparger 13 the other ends are connected with mouth body 10.The end of eddy flow section pipe 81 is provided with capping 12; Primary steam distribution pipe 4 links to each other with capping 12, and the steam-in 7 of its end is positioned at the outside of capping 12.Conehead pipe 3 is a cone surface shape, and an end is uncovered, link to each other the other end sealing with primary steam distribution pipe 4.The blind end of conehead pipe 3 shown in Figure 2 is a slab construction, and it can also be awl point, round end structure (figure slightly).
The steam distribution hole 11 of 1 circle to the direction inclination of shower nozzle 2 is set respectively on primary steam distribution pipe 4, conehead pipe 3 and the secondary steam sparger 13 at least; Steam distribution hole 11 is a circular port.Described feed-pipe 6 tangentially is connected on the eddy flow section pipe 81 along eddy flow section pipe 81.Form eddy flow chamber 9 between primary steam distribution pipe 4 and eddy flow section pipe 81 and the eddy flow section Taper Pipe 82, form hybrid chamber 5 between primary steam distribution pipe 4 and conehead pipe 3 and the oil gas pipe 14, form a secondary air chamber 15 between secondary steam sparger 13, oil gas pipe 14 and the mouth body 10.The shape of cross section of eddy flow chamber 9, hybrid chamber 5 and secondary air chamber 15 evenly is an annular.
Referring to Fig. 2, structural parameter of the present utility model are generally as follows: the angle δ of the axial line of feed-pipe 6 and nozzle axial line is 30～90 degree, the taper angle theta of eddy flow section Taper Pipe 82 is 30～130 degree, and the internal diameter of eddy flow section pipe 81 is 1.1～2.5 with the ratio of the internal diameter of mouth body 10.Primary steam distribution pipe 4 is provided with 1～60 circle steam distribution hole 11, and every circle is provided with 2～30 steam distribution holes 11.The axial line in the steam distribution hole 11 on the primary steam distribution pipe 4 and the angle γ of nozzle axial line are 10～80 degree.The angle of taper α of conehead pipe 3 is 10～90 degree; Conehead pipe 3 is provided with 1～30 circle steam distribution hole 11, and every circle is provided with 2～30 steam distribution holes 11.The axial line in the steam distribution hole 11 on the conehead pipe 3 and the angle β of nozzle axial line are 10～80 degree.Secondary steam sparger 13 is taper, which is provided with 1～10 circle steam distribution hole 11, every circle is provided with 2～30 steam distribution holes 11, steam distribution hole 11 on the secondary steam sparger 13 is 0～90 degree with the angle ε of axis, each angle ε that encloses steam distribution hole and axis radially reduces from inside to outside successively along nozzle, and the differential seat angle of the angle ε of two adjacent rings steam distribution hole and axis is 10～45 degree.The diameter in steam distribution hole 11 is 1～10 millimeter.The desirable identical or different numerical value of above-mentioned angle γ and angle β.The set quantity of respectively enclosing steam distribution hole 11 can be identical on primary steam distribution pipe 4 and the conehead pipe 3, also can be different.
Referring to Fig. 2, when being respectively provided to the steam distribution hole 11 of few 2 circles on primary steam distribution pipe 4 and conehead pipe 3, the distance s between the two adjacent rings steam distribution hole 11 is generally 10～60 millimeters.This distance s is meant that the axial line with two adjacent rings steam distribution hole 11 is bus and rotates distance between formed two adjacent imaginary circles conical surfaces around the nozzle axial line.
Other unaccounted structural parameter of the utility model need be determined according to actual service condition.For example, the diameter of the diameter of mouth body 10 and primary steam distribution pipe 4 determines that according to inlet amount and throttle flow the total length of nozzle is determined according to the particular case at scene.
The steam distribution hole 11 of respectively enclosing on primary steam distribution pipe 4, conehead pipe 3 and the secondary steam sparger 13 generally is a direction uniform distribution along the nozzle axial line, steam distribution hole 11 on every circle generally is respectively around the circumferential direction uniform distribution of primary steam distribution pipe 4, conehead pipe 3 and secondary steam sparger 13, so that can be mixed with charging equably by the water vapor of each steam distribution hole 11 ejection.The steam distribution hole 11 of respectively enclosing on the conehead pipe 3 begins to arrange from the blind end of conehead pipe 3, the layout scope is that the water vapor of conehead ejection can distribute more evenly in hybrid chamber 5 and mixes more fully with charging, the steam distribution hole 11 of all two adjacent rings preferably is staggeredly arranged on primary steam distribution pipe 4, conehead pipe 3 and the secondary steam sparger 13, as Fig. 2 and shown in Figure 4.This is a kind of preferred version of the present utility model.
The connection of each parts of the utility model generally all is to adopt welding.
Be that example illustrates operating process of the present utility model with nozzle shown in the accompanying drawing below.Charging (various catalytically cracked stock, for example wax oil, long residuum, vacuum residuum etc.) is through the tangential injection eddy flow chamber 9 of feed-pipe 6 along eddy flow section pipe 81, is rotated mobilely in eddy flow chamber 9, and enters hybrid chamber 5 after eddy flow section Taper Pipe 82 places quicken.Charging forms the high intensity turbulent field in hybrid chamber 5, by the generate film, and broken under the instantaneous accidental shear action that turbulent flow pulsation produces under action of centrifugal force, realizes atomizing for the first time.Primary atomization steam (being generally 250～400 ℃ superheated vapour) enters primary steam distribution pipe 4 and conehead pipe 3 by primary steam inlet 7, spray into hybrid chamber 5 by each circle steam distribution hole 11, mix with the charging in entering hybrid chamber 5, form the gas-liquid two-phase atomized flow, realize atomizing for the second time.Secondary-atomizing steam enters the secondary air chamber by the secondary steam inlet, spray into the end and shower nozzle 2 inner chambers of hybrid chamber 5 by the steam distribution hole 11 on the secondary steam sparger, add strong turbulence intensity, eliminate the viscous flow in shower nozzle, suppress the generation of liquid film, avoid the appearance of big drop at shower nozzle 2 inwalls.The last spout of gas-liquid two-phase atomized flow 1 place quickens, then by spout 1 ejection; Because pressure reduces, the atomizing steam in the gas-liquid two-phase atomized flow expands and explodes, and makes the charging drop further broken, realizes atomizing for the third time.Charging after the atomizing enters riser reactor then and reacts.
Catalytic cracking feed nozzle of the present utility model, generally about 55 microns, the jet velocity at spout 1 place is generally about 60 meter per seconds charging atomizing particle size (Suo Taier diameter), and the even index that atomizes generally can reach more than 3.Feed pressure is generally 0.3～0.6MPa, and the water vapor consumption is generally 3～6 weight % of inlet amount.
Claims (6)
1. catalytic cracking feed nozzle, comprise magnetizable body and atomising mechanism, magnetizable body is provided with magneticsubstance (21) and mounting block (22), and magnetizable body is arranged on feed-pipe (6) front end of atomising mechanism, and feed conduit (20) links to each other with feed-pipe (6) behind the magnetic field through magnetizable body formation.Atomising mechanism is provided with mouth body (10), feed-pipe (6), primary steam inlet (7), mouth body (10) has a mouth intracoelomic cavity, the exit end of mouth body (10) is provided with shower nozzle (2), shower nozzle (2) is provided with spout (1), it is characterized in that: secondary steam inlet (16) is set on the mouth body (10), the other end of mouth body (10) connects the eddy flow section Taper Pipe (82) and the eddy flow section pipe (81) of setting coaxial with it successively, the other end of eddy flow section pipe (81) is provided with capping (12), capping (12) is provided with primary steam inlet co-axial with it (7), the mouth intracoelomic cavity is cylindrical, mouth body (10), the interior primary steam distribution pipe (4) that is coaxially arranged with it of eddy flow section Taper Pipe (82) and eddy flow section pipe (81), be provided with oil gas pipe (14) between primary steam distribution pipe (4) and the mouth body (10), primary steam distribution pipe (4) is provided with conehead pipe (3) at the end near shower nozzle (2), the other end is a primary steam inlet (7), one end of oil gas pipe (14) is connected with eddy flow section Taper Pipe (82), the other end connects secondary steam sparger (13), and the other end of secondary steam sparger (13) is connected with mouth body (10).Primary steam distribution pipe (4), the steam distribution hole (11) of one circle to the direction inclination of shower nozzle (2) is set on conehead pipe (3) and the secondary steam sparger (13) at least, feed-pipe (6) tangentially is connected on the eddy flow section pipe (81) along eddy flow section pipe (81), form eddy flow chamber (9) between primary steam distribution pipe (4) and eddy flow section pipe (81) and the eddy flow section Taper Pipe (82), form hybrid chamber (5) between primary steam distribution pipe (4) and conehead pipe (3) and oil gas pipe (14) and the secondary steam sparger (13), secondary steam sparger (13), form a secondary air chamber (15) between oil gas pipe (14) and the mouth body (10).
2. catalytic cracking feed nozzle according to claim 1 is characterized in that: described magnetizable body has one or more groups magneticsubstance (21), and every group of magneticsubstance (21) divides two, is to be oppositely arranged.
3. catalytic cracking feed nozzle according to claim 1 and 2 is characterized in that: described magneticsubstance (21) is permanent magnet or Nd-Fe-B rare earth permanent magnetic material, and one side is the N utmost point, and another side then is the S utmost point.
4. catalytic cracking feed nozzle according to claim 1, it is characterized in that: the axial line of feed-pipe (6) and the angle δ of nozzle axial line are 30～90 degree, the taper angle theta of eddy flow section Taper Pipe (82) is 30～130 degree, the ratio of the internal diameter of the internal diameter of eddy flow section pipe (81) and mouth body (10) is 1.1～2.5, primary steam distribution pipe (4) is provided with 1～60 circle primary steam distribution hole (11), every circle is provided with 2～30 steam distribution holes (11), the axial line in the steam distribution hole (11) on the primary steam distribution pipe (4) and the angle γ of nozzle axial line are 10～80 degree, the angle of taper α of conehead pipe (3) is 10～90 degree, conehead pipe (3) is provided with 1～30 circle steam distribution hole (11), every circle is provided with 2～30 steam distribution holes (11), the axial line in the steam distribution hole (11) on the conehead pipe (3) and the angle β of nozzle axial line are 10～80 degree, secondary steam sparger (13) is taper, which is provided with 1～10 circle steam distribution hole (11), every circle is provided with 2～30 steam distribution holes (11), the axial line in the steam distribution hole (11) on the secondary steam sparger (13) and the angle ε of nozzle axial line are 0～90 degree, and the diameter of steam distribution hole (11) is 1～10 millimeter.
5. according to claim 1 or 4 described catalytic cracking feed nozzles, it is characterized in that: the steam distribution hole (11) that is respectively provided to few 2 circles on primary steam distribution pipe (4), conehead pipe (3) and the secondary steam sparger (13), distance s between primary steam distribution pipe (4) and conehead pipe (3) the two adjacent rings steam distribution hole (11) is 10～60 millimeters, the angle ε that respectively encloses steam distribution hole and axis on the secondary steam sparger (13) radially reduces from inside to outside successively along nozzle, and the differential seat angle of the angle ε of two adjacent rings steam distribution hole and axis is 10～45 degree.
6. catalytic cracking feed nozzle according to claim 5 is characterized in that: the steam distribution hole (11) that primary steam distribution pipe (4), conehead pipe (3) and secondary steam sparger (13) are gone up two adjacent rings all is staggeredly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201386788U CN202063879U (en) | 2011-04-29 | 2011-04-29 | Catalytic cracking feed nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201386788U CN202063879U (en) | 2011-04-29 | 2011-04-29 | Catalytic cracking feed nozzle |
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| Publication Number | Publication Date |
|---|---|
| CN202063879U true CN202063879U (en) | 2011-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201386788U Expired - Lifetime CN202063879U (en) | 2011-04-29 | 2011-04-29 | Catalytic cracking feed nozzle |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301971A (en) * | 2013-06-24 | 2013-09-18 | 迈瑞尔实验设备（上海）有限公司 | Reactor nozzle for experimental devices |
| CN103834430A (en) * | 2013-01-23 | 2014-06-04 | 洛阳瑞泽石化工程有限公司 | Design method of feed nozzle of catalytic cracking device |
| CN109264810A (en) * | 2018-10-10 | 2019-01-25 | 中国石油集团渤海石油装备制造有限公司 | A kind of spin current aqueous vapor Coaxial nozzle and its application method |
| CN110237953A (en) * | 2019-07-04 | 2019-09-17 | 华东交通大学 | A kind of environmental-protection atomized device |
| CN112264209A (en) * | 2020-09-18 | 2021-01-26 | 西北工业大学 | Spiral pipe type air atomizing nozzle |
| CN114653450A (en) * | 2020-12-22 | 2022-06-24 | 中国石油化工股份有限公司 | Micro-droplet generating device and generating method |
| CN115283159A (en) * | 2022-08-03 | 2022-11-04 | 中国石油化工股份有限公司 | Gas-liquid three-phase feeding nozzle, raw oil feeding method and application |
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2011
- 2011-04-29 CN CN2011201386788U patent/CN202063879U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103834430A (en) * | 2013-01-23 | 2014-06-04 | 洛阳瑞泽石化工程有限公司 | Design method of feed nozzle of catalytic cracking device |
| CN103834430B (en) * | 2013-01-23 | 2015-09-09 | 洛阳瑞泽石化工程有限公司 | A kind of catalytic cracking feeds device |
| CN103301971A (en) * | 2013-06-24 | 2013-09-18 | 迈瑞尔实验设备（上海）有限公司 | Reactor nozzle for experimental devices |
| CN103301971B (en) * | 2013-06-24 | 2015-09-16 | 迈瑞尔实验设备（上海）有限公司 | A kind of experimental provision reactor nozzle |
| CN109264810A (en) * | 2018-10-10 | 2019-01-25 | 中国石油集团渤海石油装备制造有限公司 | A kind of spin current aqueous vapor Coaxial nozzle and its application method |
| CN109264810B (en) * | 2018-10-10 | 2021-03-23 | 中国石油集团渤海石油装备制造有限公司 | Self-rotating flow water-gas coaxial nozzle and use method thereof |
| CN110237953A (en) * | 2019-07-04 | 2019-09-17 | 华东交通大学 | A kind of environmental-protection atomized device |
| CN110237953B (en) * | 2019-07-04 | 2021-01-15 | 华东交通大学 | Environment-friendly atomizing device |
| CN112264209A (en) * | 2020-09-18 | 2021-01-26 | 西北工业大学 | Spiral pipe type air atomizing nozzle |
| CN114653450A (en) * | 2020-12-22 | 2022-06-24 | 中国石油化工股份有限公司 | Micro-droplet generating device and generating method |
| CN115283159A (en) * | 2022-08-03 | 2022-11-04 | 中国石油化工股份有限公司 | Gas-liquid three-phase feeding nozzle, raw oil feeding method and application |
| CN115283159B (en) * | 2022-08-03 | 2024-02-13 | 中国石油化工股份有限公司 | Gas-liquid three-phase feeding nozzle, raw oil feeding method and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee after: Luoyang Petrochemical Engineering Corporation /SINOPEC Patentee after: Sinopec Corp. Co-patentee after: Sinopec Guangzhou Engineering Co., Ltd. Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Co-patentee before: Luoyang Petrochemical Engineering Co., China Petrochemical Group Patentee before: Sinopec Corp. Co-patentee before: Guangzhou Zhongyuan Petroleum and Chemical Engineering Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111207 |