CN105820836A - Reforming reactor central tube - Google Patents
Reforming reactor central tube Download PDFInfo
- Publication number
- CN105820836A CN105820836A CN201610379411.5A CN201610379411A CN105820836A CN 105820836 A CN105820836 A CN 105820836A CN 201610379411 A CN201610379411 A CN 201610379411A CN 105820836 A CN105820836 A CN 105820836A
- Authority
- CN
- China
- Prior art keywords
- reforming reactor
- inner sleeve
- central canal
- waling
- reinforcing ribs
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B01J8/12—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles moved by gravity in a downward flow
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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
- C10G35/00—Reforming naphtha
- C10G35/04—Catalytic reforming
- C10G35/10—Catalytic reforming with moving catalysts
Abstract
Provided is a reforming reactor central tube .The reforming reactor central tube is characterized in that a central tube structure is of an axial Johnson screen and inner sleeve structure, transverse reinforcing ribs are laid between a Johnson screen and an inner sleeve, longitudinal reinforcing ribs are additionally arranged in the length direction of the whole transverse reinforcing ribs, and a latticed structure is formed; the bottom of an auxiliary rib plate is fixed with a shell ring through continuous welding and fixed with side faces of the longitudinal reinforcing ribs through spot welding .Due to the fact that the auxiliary rib plate is additionally arranged, damage of existing longitudinal Johnson reinforcing ribs and V-shaped section wires in a reforming reaction can be avoided, and the initial fracture failure is avoided; various tension and pressure actions occurs in the situation that when the Johnson screen is subjected to expansion, the pressure is uneven can be avoided.
Description
Technical field
The present invention relates to a kind of central canal reducing catalyst leakage, especially relate to PETROLEUM PROCESSING continuous catalytic reforming device reforming reactor central canal.
Background technology
Reforming reactor is the visual plant of reformer, is also the core of whole reformer.The effect of reforming reactor is to allow oil gas contact with catalyst at reaction conditions, not entrained product when simultaneously allowing catalyst leave.Reactor is made up of Import and Export of Oil and Gas part, catalyst dipleg and reactor inner member, and inner member includes the compositions such as oil and gas distributor, sector drum (some minor diameter reactor is Johnson Net pipe), central canal, conical grating, taper panel.
The outside tubular being fabricated to for Johnson Net of existing central canal, closed upper part lower openings.In order to strengthen its intensity, internal for opening foraminate cylinder.Owing to reforming reactor internals are extremely complex, central canal is the most with sector drum connector position, and reforming reactor cylinder material is different with inner member material, during high-temperature heat expansion, swell increment differs, the inner members such as reactor sector drum, taper cover plate, central canal are caused to deform, cracking, the problem such as damaged.And reforming reactor is very big by raw material, temperature, pressure fluctuations, central canal breakage can cause catalyst leakage, catalyst consumption is made to become big, the leakage of catalyst can make product octane number reduce, arene content reduces, hydrogen purity declines, the safety and steady affecting product quality and downstream unit runs, and causes very big hidden danger to device long-term operation.
Summary of the invention
For solving the problems referred to above, the technical solution used in the present invention is: a kind of reforming reactor central canal, it is characterized in that the Johnson Net that described center tube structure is axial adds inner sleeve structure, it is equipped with cross reinforcing between described Johnson Net and inner sleeve, have additional waling along whole cross reinforcing length direction, form fenestral fabric；Auxiliary gusset it is welded with between described cross reinforcing and waling, described auxiliary gusset side contacts with waling, another layer is overlapping with cross reinforcing, fixes with shell ring sequential welding bottom described auxiliary gusset, and the side point solid welding with waling is fixed.
Further, described inner sleeve lower part is additionally provided with helical steel band；
Further, described inner sleeve is evenly distributed with sieve aperture from top to down；
Further, bottom central canal can be sphere or the conical surface.
The invention has the beneficial effects as follows: make cross reinforcing form fenestral fabric with waling, and inner sleeve lower end is provided with helical steel band, considerably increases the anti-de-stabilise of Johnson Net so that it is rigidity is greatly increased.Additionally, be welded with auxiliary gusset between cross reinforcing and waling, waling can be further avoided to rupture.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the sectional view of the present invention；
Fig. 3 is Fig. 1 Johnson Net structural representation of the present invention；
Fig. 4 is the partial enlarged drawing in Fig. 1 of the present invention at A.
Detailed description of the invention
Illustrate below in conjunction with the accompanying drawings, the present invention will be further described: the present invention is a kind of reforming reactor central canal, the Johnson Net that this central canal 1 structure is axial adds inner sleeve structure, being evenly distributed with sieve aperture 3 on inner core 2 from top to down, inner sleeve lower part is additionally provided with the helical steel band 7 that can strengthen sleeve rigidity.In order to strengthen the intensity of Johnson Net itself, cross reinforcing 5 can be equipped with between Johnson Net and inner sleeve, have additional waling 6 along whole cross reinforcing length direction, form fenestral fabric；Being welded with auxiliary gusset 8 between cross reinforcing and waling, auxiliary gusset 8 side contacts with waling 6, and another layer is overlapping with cross reinforcing 7, fixes with shell ring sequential welding bottom auxiliary gusset, and the side point solid welding with waling is fixed.Add auxiliary gusset, it is possible to avoid the damage occurred in reforming reaction of existing longitudinal Johnson's reinforcement and V-type cross section silk, it is to avoid play fracture failure.Johnson Net can also be avoided when the situation uneven by the bulbs of pressure, and appearance various are drawn, pressure effect.
Claims (4)
1. a reforming reactor central canal, it is characterized in that the Johnson Net that described center tube structure is axial adds inner sleeve structure, it is equipped with cross reinforcing between described Johnson Net and inner sleeve, has additional waling along whole cross reinforcing length direction, form fenestral fabric；Auxiliary gusset it is welded with between described cross reinforcing and waling, described auxiliary gusset side contacts with waling, another layer is overlapping with cross reinforcing, fixes with shell ring sequential welding bottom described auxiliary gusset, and the side point solid welding with waling is fixed.
The most according to claim 1. a kind of reforming reactor central canal, it is characterized in that described inner sleeve lower part is additionally provided with helical steel band.
The most according to claim 2. a kind of reforming reactor central canal, it is characterized in that being evenly distributed with from top to down on described inner sleeve sieve aperture.
4. according to described in claim 1 or 3. a kind of reforming reactor central canal, it is characterized in that can being sphere or the conical surface bottom central canal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610379411.5A CN105820836A (en) | 2016-05-31 | 2016-05-31 | Reforming reactor central tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610379411.5A CN105820836A (en) | 2016-05-31 | 2016-05-31 | Reforming reactor central tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105820836A true CN105820836A (en) | 2016-08-03 |
Family
ID=56531520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610379411.5A Pending CN105820836A (en) | 2016-05-31 | 2016-05-31 | Reforming reactor central tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105820836A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113509894A (en) * | 2021-07-22 | 2021-10-19 | 中冶赛迪工程技术股份有限公司 | Moving bed gas-solid radial reactor |
-
2016
- 2016-05-31 CN CN201610379411.5A patent/CN105820836A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113509894A (en) * | 2021-07-22 | 2021-10-19 | 中冶赛迪工程技术股份有限公司 | Moving bed gas-solid radial reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160803 |
|
| WD01 | Invention patent application deemed withdrawn after publication |