CN202786131U - Atomizing nozzle - Google Patents
Atomizing nozzle Download PDFInfo
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- CN202786131U CN202786131U CN 201220317958 CN201220317958U CN202786131U CN 202786131 U CN202786131 U CN 202786131U CN 201220317958 CN201220317958 CN 201220317958 CN 201220317958 U CN201220317958 U CN 201220317958U CN 202786131 U CN202786131 U CN 202786131U
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- atomizing
- steam
- nebulization channel
- section
- nozzle
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Abstract
The utility model relates to the technical field of petrochemical industry, and mainly relates to an atomizing nozzle. The atomizing nozzle comprises a steam inlet, a material inlet, a nozzle outlet and a material atomizing channel, wherein fluid is communicated with the material inlet and the nozzle outlet, the steam inlet is arranged on the material atomizing channel, and the width of the cross sections of the material inlet, the steam inlet and the material atomizing channel in the longitudinal direction is less than the width of the cross sections of the material inlet, the steam inlet and the material atomizing channel in the transverse direction. The atomizing nozzle has the advantages that the compression degree of material oil is reduced from the material atomizing channel to the nozzle, the resistance is reduced and the speed of the atomized material outlet is more uniform.
Description
Technical field
The utility model belongs to the petrochemical technology field, relates generally to a kind of atomizing nozzle.
Background technology
Heavy oil fluid catalytic cracking charging atomizing nozzle is one of most important equipment of catalytic cracking unit, and Main Function is with the vaporization of material oil and sprays in the riser reactor of catalytic cracking unit.The quality of material oil misting technology not only directly has influence on the economic benefit of device, and can directly affect the productive rate of catalytic cracking reaction and the economic benefit of full factory.Yet the continuous change of catalytic cracking material oil is heavy in the production becomes more and more difficult so that the charging of material oil atomizes, and material oil charging atomizing problem just becomes further outstanding.Therefore, the improvement of heavy oil feeding atomization nozzle necessitated.
Reasonable Feed Atomizing Nozzles For Heavy Oil Fcc Unit mainly contains the OPTIMIX nozzle of American UOP company, domestic KH type, BWJ type, CS type and CCK type in producing at present.But above-mentioned these nozzles have shortcoming separately.But these nozzles have shortcoming separately.The OPTIMIX nozzle of American UOP company requires material oil and atomizing steam to advance the front pressure of nozzle up to 1.3-1.4MPa, and the requirement of corresponding whole material oil feed system improves, and this kind nozzle is expensive, and domestic existing production equipment is difficult to use.The nozzle of domestic research and development, although reached the leading level in the world,, also there are a lot of shortcomings, for example: the jet exit linear speed is higher, and nozzle grinds soon, even causes break-up of catalyst; Or material oil misting particle diameter is excessive or size distribution is inhomogeneous, and the purpose product yield is low.The outlet of atomizing nozzle of the prior art is generally track type, be that outward appearance is flats, and the internal cross section of the material nebulization channel of atomizing nozzle is rounded, fluid is when flowing out from outlet, cross section vertically on can meet obstructions, thereby cause the velocity of flow of fluid inconsistent.
Summary of the invention
For solving above technical problem, the purpose of this utility model is to propose a kind of atomizing nozzle.Make it not only can adapt to the more and more heavier development trend of material oil, enlarge catalytic cracking material oil source, can also improve atomizing effect, the material resistance to flow output that reduces to atomize makes atomizing outlet material speed balanced.
The utility model is taked following technical scheme for realizing its goal of the invention:
A kind of atomizing nozzle, it is characterized in that, comprise: steam-in, material inlet, jet exit and material nebulization channel, its fluid is communicated with described material inlet and described jet exit, described steam-in is arranged on the described material nebulization channel, and the cross section width in the vertical of described material inlet, steam-in and material nebulization channel is less than in the horizontal width.
Described atomisation, preferably, described material inlet, steam-in and material nebulization channel are ellipse, round rectangle or track type.
Described atomisation, preferably, the cross section of described material inlet, steam-in and material nebulization channel has the shape consistent with described jet exit.
Described atomisation, preferably, described material nebulization channel comprises primary atomization section and the secondary-atomizing section of vertically order distribution, described steam-in comprises primary atomization steam-in and secondary-atomizing steam-in, described primary atomization steam-in is arranged at the end of material nebulization channel, described material inlet is arranged on the sidewall of described material nebulization channel, be positioned near the described primary atomization steam-in, also be arranged with a secondary-atomizing steam air chamber in the outside of described material nebulization channel, described secondary-atomizing steam-in and described secondary-atomizing steam air chamber gas communication, described secondary-atomizing steam air chamber and described material nebulization channel gas communication, the position of described secondary-atomizing steam air chamber is corresponding with the position of described secondary-atomizing section, is coated on the position at the described secondary-atomizing section place of described material nebulization channel.
Described atomisation, preferably, described primary atomization section includes along the primary atomization expansion section of primary atomization mixing section, isodiametric primary atomization transition section and the hole enlargement of the undergauge of the axial order arrangement of described material nebulization channel.
Described atomisation, preferably, described secondary-atomizing section includes along the secondary-atomizing expansion section of secondary-atomizing mixing section, isodiametric secondary-atomizing transition section and the hole enlargement of the undergauge of the axial order arrangement of described material nebulization channel.
Described atomisation, preferably, described secondary-atomizing steam-in is positioned on the described secondary-atomizing steam air chamber, starting position near described the second sections of atomization, described secondary-atomizing steam air chamber has a secondary-atomizing steam fumarole, by described secondary-atomizing steam fumarole and described material nebulization channel gas communication, described secondary-atomizing steam fumarole is near the end position of described the second sections of atomization.
Described atomisation, preferably, described secondary-atomizing steam fumarole is circular hole, the aperture is 2～15mm.
The utility model has been owing to adopted ellipse or round rectangle or track type material nebulization channel, so that during the atomizing material outlet, the suppressed range from the material nebulization channel to shower nozzle reduces, resistance reduces, and atomizing material velocity of discharge is more even.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the cross section phasor of the utility model nebulization channel.
Embodiment
As shown in Figure 1, a kind of atomizing nozzle, it is characterized in that, comprise: steam-in, material inlet, jet exit and material nebulization channel, its fluid is communicated with described material inlet and described jet exit, described steam-in is arranged on the described material nebulization channel, and the cross section width in the vertical of described material inlet, steam-in and material nebulization channel is less than in the horizontal width.Described material inlet, steam-in and material nebulization channel are ellipse, round rectangle or track type.The cross section of described material nebulization channel has the shape consistent with described jet exit.
Described material nebulization channel comprises primary atomization section and the secondary-atomizing section of vertically order distribution, described steam-in comprises primary atomization steam-in and secondary-atomizing steam-in, described primary atomization steam-in is arranged at the end of material nebulization channel, described material inlet is arranged on the sidewall of described material nebulization channel, be positioned near the described primary atomization steam-in, also be arranged with a secondary-atomizing steam air chamber in the outside of described material nebulization channel, described secondary-atomizing steam-in and described secondary-atomizing steam air chamber gas communication, described secondary-atomizing steam air chamber and described material nebulization channel gas communication, the position of described secondary-atomizing steam air chamber is corresponding with the position of described secondary-atomizing section, is coated on the position at the described secondary-atomizing section place of described material nebulization channel.Described primary atomization section includes along the primary atomization expansion section of primary atomization mixing section, isodiametric primary atomization transition section and the hole enlargement of the undergauge of the axial order arrangement of described material nebulization channel.Described secondary-atomizing section includes along the secondary-atomizing expansion section of secondary-atomizing mixing section, isodiametric secondary-atomizing transition section and the hole enlargement of the undergauge of the axial order arrangement of described material nebulization channel.Described secondary-atomizing steam-in is positioned on the described secondary-atomizing steam air chamber, starting position near described the second sections of atomization, described secondary-atomizing steam air chamber has a secondary-atomizing steam fumarole, by described secondary-atomizing steam fumarole and described material nebulization channel gas communication, described secondary-atomizing steam fumarole is near the end position of described the second sections of atomization.Described secondary-atomizing vapor-nozzle is circular hole, and the aperture is 2～15mm.
Material oil enters material grease chamber 18 from material oil-in 17, enter ringwise nebulization channel, by the primary steam atomizing of primary atomization vapor-nozzle 2 ejections, nebulization channel by continuous contraction makes the material oil misting even, material oil behind the primary atomization is in the exit of nebulization channel, by the secondary-atomizing steam vaporization of secondary-atomizing steam fumarole 12 ejection, after entering atomizing material outlet 9 and accelerate by shower nozzle 11, again atomized; Form oarse-grained tendency for the material that reduces to atomize gathers, the atomizing nozzle outlet top edge of a knife 10 is acute angle; For reducing to atomize the speedup resistance of material from the nebulization channel to the nozzle and make atomizing material velocity of discharge even, it is the rectangle of circular arc that used nozzle atomization channel cross-section is shaped as ellipse or round rectangle or two ends.
Although embodiment of the present utility model is open as above, but it is not restricted to listed utilization in specification sheets and the embodiment, it can be applied to the various fields of the present utility model that are fit to fully, for those skilled in the art, can easily realize other modification, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend of describing.
Claims (8)
1. an atomizing nozzle is characterized in that, comprising:
The steam-in;
Material inlet;
Jet exit;
The material nebulization channel, its fluid is communicated with described material inlet and described jet exit, described steam-in is arranged on the described material nebulization channel, and the cross section width in the vertical of described material inlet, steam-in and material nebulization channel is less than in the horizontal width.
2. atomizing nozzle as claimed in claim 1 is characterized in that, the material inlet of described atomizing nozzle, steam-in and material nebulization channel are ellipse, round rectangle or track type.
3. atomizing nozzle as claimed in claim 1 or 2 is characterized in that, the cross section of the material inlet of described atomizing nozzle, steam-in and material nebulization channel has the shape consistent with described jet exit.
4. atomizing nozzle as claimed in claim 3, it is characterized in that, described material nebulization channel comprises primary atomization section and the secondary-atomizing section of vertically order distribution, described steam-in comprises primary atomization steam-in and secondary-atomizing steam-in, described primary atomization steam-in is arranged at the end of material nebulization channel, described material inlet is arranged on the sidewall of described material nebulization channel, be positioned near the described primary atomization steam-in, also be arranged with a secondary-atomizing steam air chamber in the outside of described material nebulization channel, described secondary-atomizing steam-in and described secondary-atomizing steam air chamber gas communication, described secondary-atomizing steam air chamber and described material nebulization channel gas communication, the position of described secondary-atomizing steam air chamber is corresponding with the position of described secondary-atomizing section, is coated on the position at the described secondary-atomizing section place of described material nebulization channel.
5. atomizing nozzle as claimed in claim 4, it is characterized in that described primary atomization section includes along the primary atomization expansion section of primary atomization mixing section, isodiametric primary atomization transition section and the hole enlargement of the undergauge of the axial order arrangement of described material nebulization channel.
6. atomizing nozzle as claimed in claim 4, it is characterized in that described secondary-atomizing section includes along the secondary-atomizing expansion section of secondary-atomizing mixing section, isodiametric secondary-atomizing transition section and the hole enlargement of the undergauge of the axial order arrangement of described material nebulization channel.
7. such as claim 4 or 6 described atomizing nozzles, it is characterized in that, described secondary-atomizing steam-in is positioned on the described secondary-atomizing steam air chamber, starting position near described the second sections of atomization, described secondary-atomizing steam air chamber has a secondary-atomizing steam fumarole, by described secondary-atomizing steam fumarole and described material nebulization channel gas communication, described secondary-atomizing steam fumarole is near the end position of described the second sections of atomization.
8. atomizing nozzle as claimed in claim 7 is characterized in that, described secondary-atomizing steam fumarole is circular hole, and the aperture is 2～15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220317958 CN202786131U (en) | 2012-07-02 | 2012-07-02 | Atomizing nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220317958 CN202786131U (en) | 2012-07-02 | 2012-07-02 | Atomizing nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202786131U true CN202786131U (en) | 2013-03-13 |
Family
ID=47813436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220317958 Expired - Fee Related CN202786131U (en) | 2012-07-02 | 2012-07-02 | Atomizing nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202786131U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132671A (en) * | 2014-08-13 | 2014-11-05 | 南通流量仪表厂有限公司 | Speed controlling device for channel of steam with running speed as sound velocity |
| CN105921295A (en) * | 2016-06-27 | 2016-09-07 | 石宝珍 | Feed atomization nozzle |
| CN109137375A (en) * | 2017-06-15 | 2019-01-04 | 东部大宇电子株式会社 | Wall-mounted washing machine |
| CN110107269A (en) * | 2019-03-29 | 2019-08-09 | 中国石油化工股份有限公司 | Mist generating device and its working method |
-
2012
- 2012-07-02 CN CN 201220317958 patent/CN202786131U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132671A (en) * | 2014-08-13 | 2014-11-05 | 南通流量仪表厂有限公司 | Speed controlling device for channel of steam with running speed as sound velocity |
| CN105921295A (en) * | 2016-06-27 | 2016-09-07 | 石宝珍 | Feed atomization nozzle |
| CN105921295B (en) * | 2016-06-27 | 2019-03-26 | 石宝珍 | A kind of atomizing feed nozzle |
| CN109137375A (en) * | 2017-06-15 | 2019-01-04 | 东部大宇电子株式会社 | Wall-mounted washing machine |
| CN110107269A (en) * | 2019-03-29 | 2019-08-09 | 中国石油化工股份有限公司 | Mist generating device and its working method |
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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: 20130313 Termination date: 20180702 |