CN1088958A - Heavy oil fluid catalytic cracking central feeding spraying gun - Google Patents
Heavy oil fluid catalytic cracking central feeding spraying gun Download PDFInfo
- Publication number
- CN1088958A CN1088958A CN 93120263 CN93120263A CN1088958A CN 1088958 A CN1088958 A CN 1088958A CN 93120263 CN93120263 CN 93120263 CN 93120263 A CN93120263 A CN 93120263A CN 1088958 A CN1088958 A CN 1088958A
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- Prior art keywords
- nozzle
- catalytic cracking
- spraying gun
- catheter
- inner catheter
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- 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.)
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Abstract
A kind of heavy oil fluid catalytic cracking central feeding spraying gun, comprise that a mixing section reaches main steam nozzle, oil burner nozzle and the inner catheter of phase configuration with it, the outside of inner catheter is with an outer catheter, configuration one auxilliary vapor-nozzle on the outer catheter, can improve yield of light oil, reduce coking rate, be specially adapted to small-sized (300,000 tons/produce per year following) catalytic cracking unit, have atomizing effect height, reliable characteristics.
Description
The present invention relates to a kind of feed atomizer, particularly a kind of heavy oil fluid catalytic cracking central feeding spraying gun.
In catalytic cracking process, the effect of feed atomizer (nozzle) is to make stock oil form excellent contact with the state and the catalyzer of atomizing, and carries out scission reaction.And the quality of atomization quality directly affects the yield and the quality product of lightweight oil, influences coke yield simultaneously, and is all the more so in mink cell focus processing.For this reason, all attach great importance to the Application and Development of high quality feed nozzle both at home and abroad, for example, the disclosed heavy oil fluid catalytic cracking feed nozzle of U.S. Pat 4518-120A, German patent DE 3423-373A, its basic structure form is formed by inner and outer pipes, nozzle, and blockage phenomenon, atomizing are inhomogeneous easily.
The objective of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of heavy oil fluid catalytic cracking central feeding spraying gun has been proposed, can improve yield of light oil, reduce coking rate, be specially adapted to small-sized (300,000 tons/produce per year following) catalytic cracking unit, have reliable characteristics.
Accompanying drawing is seen structure sectional view of the present invention.
The present invention includes a mixing chamber 3, one end device of mixing chamber 3 has main steam nozzle 2, have tangential oil inlet nozzle 1 on the face of cylinder of mixing chamber 3, the other end of mixing chamber 3 disposes inner catheter 7, the outer surface cover of inner catheter 7 has an outer catheter 6, outer catheter 6 and inner catheter 7 other ends are supported with spinning disk 5 and support, and dispose an auxiliary steam jet 4 at outer catheter 6, and the other end of inner catheter 7 disposes wikipedia type nozzle 8.
Main steam forms vortex shape mixing gas by the oil that nozzle 2 and oil burner nozzle 1 come in mixing section 3, the inner catheter 7 back formation annular-flows of flowing through enter wikipedia type nozzle 8, a part of then oil film is entrainmented atomizing by main steam flow, another part oil film is by the spout ejection of wikipedia type nozzle 8, simultaneously, the ring cavity that auxilliary steam is formed by auxilliary vapour nozzle 4 introducing outer catheters 6 and inner catheter 7, quicken and help the spout ejection of supination through spinning disk 5 from outer catheter 6, meet with the oil film of the spout of wikipedia type nozzle 8 ejection, inside and outside pincer attack fully atomizes oil film.
The flow area of main steam nozzle 2 is 1.5-2.8 with the ratio of the optimum value of the flow area of auxilliary vapor-nozzle 4, and auxilliary vapor-nozzle 4 is opposite with the import rotation direction of oil burner nozzle 1.
This shows that the present invention has following characteristics:
1, the atomizing non-uniform phenomenon had both been eliminated in the introducing of outer gas flow interlayer, make gas, oily energy distribution more reasonable again, made full use of the gas energy, make that also the design of wikipedia type nozzle expansion segment flare angle is free more, it is too narrow and small to have overcome conventional wikipedia type nozzle spray angle, can not with the catalyzer problem of blending equably.One of purpose that spinning disk is set in the outer catheter is to make outer steam flow obtain to revolve energy, has so both increased speed of relative movement between gas and the oil film, has also weakened the influence of outer steam flow to spray angle, and in addition structurally, spinning disk also has the supporting positioning action.
2, vortex oil-feed mode adopt the inlet pressure that not only makes full use of stock oil can attenuate the thickness of oil film, and increased speed of relative movement between oil, the vapour two-phase, strengthened steam oil entrainmented and atomizing.In addition, under hot situation, the carburetion that this mode can also strengthen oil improves atomizing effect.
Claims (4)
1, heavy oil fluid catalytic cracking central feeding spraying gun, comprise a mixing section (3), one end of mixing section (3) disposes main steam nozzle (2), have tangential oil inlet nozzle (1) on the cylindrical surface of mixing section (3), the other end of mixing section (3) disposes inner catheter (7), and the other end of inner catheter (7) disposes wikipedia type nozzle (8), and feature of the present invention is, the outside of said inner catheter (7) is with an outer catheter (6), disposes an auxilliary vapor-nozzle (4) on the outer catheter (6).
2, spraying gun according to claim 1 is characterized in that, the other end between said outer catheter (6) and the inner catheter (7) supports by spinning disk (5).
3, spraying gun according to claim 1 is characterized in that, said auxilliary vapor-nozzle (4) is opposite with the import rotation direction of oil burner nozzle (1).
According to claim 1 or 3 described spraying guns, it is characterized in that 4, the flow area of said auxilliary vapor-nozzle (4) is the 1/1.5-1/2.8 of main steam nozzle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93120263A CN1056101C (en) | 1993-12-01 | 1993-12-01 | Central feed atomizer for heavy oil catalytic cracking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93120263A CN1056101C (en) | 1993-12-01 | 1993-12-01 | Central feed atomizer for heavy oil catalytic cracking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1088958A true CN1088958A (en) | 1994-07-06 |
| CN1056101C CN1056101C (en) | 2000-09-06 |
Family
ID=4993215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93120263A Expired - Fee Related CN1056101C (en) | 1993-12-01 | 1993-12-01 | Central feed atomizer for heavy oil catalytic cracking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1056101C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545370A (en) * | 2020-04-16 | 2020-08-18 | 武汉世纪金辉农业科技有限公司 | Low-energy-consumption atomizer |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1530809A (en) * | 1976-11-11 | 1978-11-01 | British Petroleum Co | Nozzle assembly |
| DE3423373A1 (en) * | 1983-08-29 | 1985-03-07 | Institut für Getreideverarbeitung im VEB Kombinat Nahrungsmittel und Kaffee, DDR 1505 Bergholz-Rehbrücke | Nozzle for atomising viscous fluids |
| FR2621833B1 (en) * | 1987-10-14 | 1990-03-23 | Total France | DEVICE FOR INJECTING A HYDROCARBON LOAD INTO A CATALYTIC CRACKING REACTOR |
| CN2050424U (en) * | 1989-06-15 | 1990-01-03 | 清华大学 | Feed spray nozzle for catalytic cracking |
| AT402519B (en) * | 1990-02-06 | 1997-06-25 | Plasser Bahnbaumasch Franz | CONTINUOUSLY RIDABLE RAILWAY MACHINE FOR COMPRESSING THE GRAVEL BED OF A TRACK |
| DE4142130A1 (en) * | 1991-12-20 | 1993-06-24 | Basf Ag | USE OF POLYACETALES BASED ON VINYL ETHERS AND DIHYDROXY COMPOUNDS IN WASHING AND CLEANING AGENTS AND POLYACETALES |
-
1993
- 1993-12-01 CN CN93120263A patent/CN1056101C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111545370A (en) * | 2020-04-16 | 2020-08-18 | 武汉世纪金辉农业科技有限公司 | Low-energy-consumption atomizer |
| CN111545370B (en) * | 2020-04-16 | 2021-08-24 | 武汉世纪金辉农业科技有限公司 | Low-energy-consumption atomizer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1056101C (en) | 2000-09-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| C10 | Entry into substantive examination | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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 |