CN203625315U - Reformed reactor fan-shaped barrel for reducing catalyst leakage - Google Patents
Reformed reactor fan-shaped barrel for reducing catalyst leakage Download PDFInfo
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- CN203625315U CN203625315U CN201320732216.8U CN201320732216U CN203625315U CN 203625315 U CN203625315 U CN 203625315U CN 201320732216 U CN201320732216 U CN 201320732216U CN 203625315 U CN203625315 U CN 203625315U
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- sector drum
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- shaped barrel
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Abstract
The utility model relates to a reformed fan-shaped barrel of a reactor. The fan-shaped barrel is a Johnson screened fan-shaped barrel, the cross section of which is shaped like a fan. When the fan-shaped barrel is used, the back surface of the fan-shaped barrel is tightly bonded with the inner wall of the reactor. The fan-shaped barrel is characterized in that the top of the fan-shaped barrel is sealed; the bottom of the fan-shaped barrel is open; a lower opening of the fan-shaped barrel is connected with a collecting pipe at the bottom of the reactor; oil gases discharged from each fan-shaped barrel flow out after being mixed in the collecting pipe. Based on the structure, the connection does not exist among the fan-shaped barrels, so that leakage points are nearly avoided, i.e., the leakage of a catalyst is avoided. A center pipe is not connected with the fan-shaped barrels, so that the deformation and the damage of the fan-shaped barrels, which are caused by the uneven thermal expansion, are avoided. Thus, the production cost is lowered; the safe, stable and long-term running of the reactor is ensured.
Description
Technical field
The utility model relates to a kind of sector drum structure that catalyzer is revealed that reduces, and especially relates to refining of petroleum continuous catalytic reforming device reforming reactor sector drum structure.
Background technology
Catalytic reforming unit is the significant process of oil secondary processing, is by a series of special reactions, the catalytic reaction process that is object by low-octane virgin naphtha production high octane gasoline component and aromatic hydrocarbons under the effect of catalyzer.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 catalyzer under reaction conditions, entrained product not while simultaneously not allowing catalyzer leave.This equipment is radial reactor, under high-temperature hydro-refining environment, moves.Reactor is made up of Import and Export of Oil and Gas part, catalyzer dipleg and reactor inner member.Inner member comprises the compositions such as oil and gas distributor, sector drum (some minor diameter reactor is Johnson Net pipe), pipe core, conical grating, taper lattice plate.Between sector drum and pipe core, form a beds, sector drum is close to reactor wall, bottom sealing, sector drum bottom is seated in reactor shell along on the supporting cup of wall welding, upper opening, for free end, oil gas distributes through divider, enters sector drum inside along sector drum top, and there are 4～6 support rings at sector drum middle part, support ring is made up of three angle bar, between angle bar, fixes with bolt.The tubular that pipe core outside is made into for Johnson Net, in order to strengthen its intensity, inner in order to open foraminate cylindrical shell, its upper end is connected with bolt with taper lattice plate, and lower end is sitting in reactor bottom, with being fixed from inside with pin behind sleeve location.Taper lattice plate bottom is connected with pipe core top, and top cover plate and catalyzer dipleg are realized the isolation of catalyzer, and conical grating bottom is connected with sector drum top top board.Catalyzer dipleg inserts under taper lattice plate cover plate, sleeve for sealing is arranged at cover plate top, realize the isolation of catalyzer and oil gas, catalyzer enters bed, reactor bottom has catalyst transport mouth, enters dipleg with the catalyzer after oil gas contact reacts through delivery port, and oil gas enters wall sector drum through oil and gas distributor, through beds, reacted product enters pipe core outflow reactor.
Because reforming reactor internals are very complicated, web member is very many, and in high temperature thermal expansion process, swell increment differs, and causes the inner member such as reactor sector drum, taper cover plate to deform, the problems such as cracking, breakage.And reforming reactor is affected greatly by raw material, temperature, pressure surge, sector drum breakage can cause catalyzer to leak, make catalyst consumption become large, the leakage of catalyzer can make the reduction of product octane value, aromaticity content minimizing, hydrogen purity decline, affect the safety and steady operation of quality product and downstream unit, cause very big hidden danger to device long-term operation.
Summary of the invention
For addressing the above problem, the technical solution adopted in the utility model is: a kind of reforming reactor sector drum, for Johnson Net sector drum, transverse section is fan-shaped, and top is light pipe, and all the other are Johnson Net, when use, reactor wall is close at the sector drum back side, it is characterized in that: sector drum top is airtight, lower openings and joining with the collecting tubule of reactor bottom, the oil gas that each sector drum is discharged flows out from oil gas vent after collecting tubule mixes.
Reforming reactor sector drum top seal of the present utility model, for reducing catalyst abrasion, preferably top light pipe is wedge shape light pipe, wedge shape is domatic is preferably 30～50 degree with the angle sector drum back side.
Basic configuration, the structure of reforming reactor sector drum of the present utility model are all same as the prior art, sector drum outside is Johnson Net, inner for there being the cylindrical shell of sieve aperture, difference is sector drum open top closed bottom in prior art, and the utility model is just in time contrary, what the utility model needed that sector drum completes is contrary material trend.
Preferably there are multiple bracing frames at the sector middle part of reforming reactor sector drum, for fixed sectors cylinder.
Existing reforming reactor sector drum and other inner member connecting portion are more, and leakage point is more, affected greatly by raw material, temperature, pressure surge, cause sector drum and connecting portion distortion thereof, cracking, breakage.Have a large amount of catalyzer in sector drum inner product, catalyst consumption is large, and tooling cost is large, and dead band catalyzer sintering, carbon distribution under hot environment, causes the breakage of sector drum big area, give equipment safety, steadily, long-term operation caused great hidden danger.In view of above problem, the utility model sector drum, significantly reduces connecting portion, and envelope bottom-open type in employing reduces and even eliminates catalyzer leakage, the operation of assurance device safety and steady.
Adopt the utility model, there is following beneficial effect:
1, between this kind of novel sector drum structure sector drum, nothing connects, and almost there is no leakage point, has stopped the leakage of catalyzer; Pipe core is not connected with sector drum, can be because thermal expansion inequality causes sector drum distortion, breakage, this kind of Structure Decreasing production cost, assurance device safety and steady long-term operation.
2, sector drum top is closed, is preferably domatic, and reactor wall is close at the sector drum back side, has reduced the wearing and tearing of catalyzer on sector drum;
3, cancelled in prior art overlap joint sealed strip between sector drum and sealed, each sector drum is independent, has not had and being connected of pipe core, and has eliminated catalyzer leak source.
Accompanying drawing explanation
Fig. 1 is reforming reactor sector drum scheme of installation of the prior art.
Fig. 2 is depicted as a kind of scheme of installation of sector drum of the present utility model in reforming reactor of applying.
Fig. 3 is the side-view of reforming reactor sector drum shown in Fig. 2.
Fig. 4 is the upper and lower interface schematic diagram of reforming reactor sector drum shown in Fig. 2.
In accompanying drawing:
1---oil and gas import, 2---catalyst inlet, 3---manhole, 4---reforming reactor sector drum, 5---pipe core, 6---oil gas vent, 7---catalyst outlet, 8---light pipe, 9---Johnson Net, 10---bracing frame, 11---collecting tubule.
Embodiment
Adopting the reforming reactor sector drum shown in Fig. 3, Fig. 4, is Johnson Net sector drum, and is mounted in reforming reactor by the structure of Fig. 2.Reforming reactor sector drum 4 upper positions are in reactor head, substantially concordant with reactor end socket welding line, sector drum top is airtight, top light pipe is wedge shape, wedge shape domatic with the angle sector drum back side be 45 degree, sector drum is uniform along reactor wall, adopts 3～5 groups of bracing frames 10 to make it be close to reactor wall, has reduced the wearing and tearing of catalyzer on sector drum; The collecting tubule 11 of sector drum bottom opening and reactor bottom joins, and the mode of joining is that an annular recesses is arranged at sector drum bottom, is fixed, as shown in Figure 4 with collecting tubule after coordinating with pin.Reactor collecting tubule is a cavity, and ring wall is welded in wall of reactor.
Oil gas enters from reforming reactor top oil and gas import 1, enter again in pipe core 5, under centrifugal action, oil gas spreads to wall, enter in sector drum 4 through after catalyst bed reaction, enter collecting tubule 11, the reacted oil gas that each sector drum converges flows out from the oil gas vent 6 of reactor after collecting tubule mixes again; Catalyzer autocatalysis agent import 2 enters in reforming reactor along catalyzer dipleg by self gravitation, and the beds forming with pipe core 5 at sector drum 4 participates in reacting with oil gas, flows out from catalyst outlet 7.When manhole 3 is break-down maintenance, when reactor maintenance and dismounting internals, use.
Claims (4)
1. a reforming reactor sector drum, for Johnson Net sector drum, transverse section is fan-shaped, top is light pipe, all the other are Johnson Net, and when use, reactor wall is close at the sector drum back side, it is characterized in that: sector drum top seal, lower openings and joining with the collecting tubule of reactor bottom, the oil gas that each sector drum is discharged flows out from oil gas vent after collecting tubule mixes.
2. according to the reforming reactor sector drum shown in claim 1, it is characterized in that: sector drum top light pipe is wedge shape light pipe.
3. according to the reforming reactor sector drum shown in claim 1, it is characterized in that: sector drum top wedge shape light pipe wedge shape domatic with the angle sector drum back side be 30～50 degree.
4. according to the reforming reactor sector drum shown in claim 1, it is characterized in that: there are multiple bracing frames at the sector middle part of reforming reactor sector drum, for fixed sectors cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320732216.8U CN203625315U (en) | 2013-11-19 | 2013-11-19 | Reformed reactor fan-shaped barrel for reducing catalyst leakage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320732216.8U CN203625315U (en) | 2013-11-19 | 2013-11-19 | Reformed reactor fan-shaped barrel for reducing catalyst leakage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203625315U true CN203625315U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320732216.8U Expired - Fee Related CN203625315U (en) | 2013-11-19 | 2013-11-19 | Reformed reactor fan-shaped barrel for reducing catalyst leakage |
Country Status (1)
| Country | Link |
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| CN (1) | CN203625315U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104650961A (en) * | 2013-11-19 | 2015-05-27 | 中国石油天然气股份有限公司 | Reforming reactor fan-shaped barrels capable of reducing catalyst leakage |
-
2013
- 2013-11-19 CN CN201320732216.8U patent/CN203625315U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104650961A (en) * | 2013-11-19 | 2015-05-27 | 中国石油天然气股份有限公司 | Reforming reactor fan-shaped barrels capable of reducing catalyst leakage |
| CN104650961B (en) * | 2013-11-19 | 2017-01-04 | 中国石油天然气股份有限公司 | A kind of reforming reactor sector drum reducing catalyst leakage |
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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: 20140604 Termination date: 20211119 |