CN109882677A - A kind of alkyl plant reactor expansion joint - Google Patents
A kind of alkyl plant reactor expansion joint Download PDFInfo
- Publication number
- CN109882677A CN109882677A CN201910303746.2A CN201910303746A CN109882677A CN 109882677 A CN109882677 A CN 109882677A CN 201910303746 A CN201910303746 A CN 201910303746A CN 109882677 A CN109882677 A CN 109882677A
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- Prior art keywords
- bellows
- blind plate
- expansion joint
- straight section
- plant reactor
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- 125000000217 alkyl group Chemical group 0.000 title claims abstract description 13
- 238000007747 plating Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 abstract description 19
- 238000006073 displacement reaction Methods 0.000 description 10
- 238000005520 cutting process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000029936 alkylation Effects 0.000 description 2
- 238000005804 alkylation reaction Methods 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
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- Joints Allowing Movement (AREA)
Abstract
The present invention relates to a kind of alkyl plant reactor expansion joints, including bellows, the bellows segment of bellows main body is rectangle bellows with rounded corners, and straight section is extended in bellows segment top and bottom, upper straight section is connected with upper connecting tube by upper blind plate, and lower straight section is connected with lower linking tube by lower blind plate；The upper surface of upper blind plate internally tilts and interior pars intramuralis protrudes from ripple inside pipe wall, and the arc angle of fillet is less than 90 degree on rectangle bellows；The present invention can guarantee that the medium condensate liquid in pipeline is smoothly arranged lower and no longer accumulated at expansion joint, greatly improve the reliability and service life of expansion joint.
Description
Technical field
The present invention relates to expansion joint technical field, especially a kind of alkyl plant reactor expansion joint.
Background technique
In oil refining process, alkylation can be recombinated molecule as required to increase yield, be very important a ring.
Alkylation reactor is the core component of alkyl plant, and flexibility knot of the expansion joint in reactor as absorption system stress
Structure compensating element, has effectively acted as the effect of compensation axial deformation, is the critical component for reducing device secondary stress, is relationship
The important component that can be worked normally to reactor.
In the prior art, expansion joint main part is rectangle bellows, realizes absorption system stress by absorbing displacement
Purpose.The quadrangle of rectangle bellows is the circular arc bellows of quadrant.Circle corrugated pipe is divided into four arc-waves
Line pipe welds with the corrugated plating interval of the wave height such as four, forms rectangle bellows.The difference of peaks and troughs be wave height, because by
The limitation of existing circle corrugated pipe wave height, the wave height of rectangle bellows is limited, and the ability for causing it to absorb displacement is limited.In pipeline
The condensate liquid that is formed in inner wall of the pipe of gaseous medium, it is easy to gather on expansion joint, long-term accumulation condensation inside expansion joint
Liquid is easily corroded by it, forms Latent destruction and danger.The accumulation of condensate liquid greatly reduces the reliability of expansion joint, shortens swollen
The service life of swollen section.
Summary of the invention
The applicant provides a kind of structurally reasonable alkyl plant reaction for the disadvantage in above-mentioned existing production technology
Device expansion joint to effectively improve the ability that expansion joint absorbs displacement, while avoiding condensate liquid from gathering on expansion joint, increases greatly
Strong expansion joint is used as the service performance of compensating element, in the reactor.
The technical solution adopted in the present invention is as follows:
A kind of alkyl plant reactor expansion joint, including bellows, bellows top are connected with hollow upper blind plate, on
Upper connecting tube is connected on blind plate；It is connected with hollow lower blind plate below the bellows, is connected with lower linking tube below lower blind plate；
The structure of the bellows are as follows: including bellows segment, bellows segment upper end is extended with upper straight section, and bellows segment lower end is extended with
Lower straight section；The bellows segment is rectangle bellows with rounded corners.
As a further improvement of the above technical scheme:
The upper surface of the upper blind plate is that internally inclined inclined-plane, lower end surface are plane, and the end of the upper connecting tube is logical
Welded connecting is crossed on the ramp of upper blind plate, the upper straight section is by being welded to connect on the lower plane of upper blind plate；On described
The interior pars intramuralis of blind plate protrudes from the inner wall of bellows.
The bellows segment includes trough and wave crest, at angle between two joint faces that trough is connected with two neighboring wave crest.
The structure of the rectangle bellows are as follows: including the corrugated plating on four sides, four corrugated platings are by four identical circles
Arc bellows interval is welded to connect, and the arc angle of the circular arc bellows is less than 90 degree.
The lower straight section protrudes into the inner hole of lower blind plate and by lock bottom butt welding connection.
Beneficial effects of the present invention are as follows:
The configuration of the present invention is simple is compact, reasonable, and it is swollen to be respectively welded blind plate composition up and down for straight part above and below bellows
Swollen section structure, by the way that the arc angle of rectangle bellows fillet is decreased to 90 degree hereinafter, to be less than i.e. on circle corrugated pipe
The mode of quadrant obtains circular arc bellows, increases the connection side of circular arc bellows and corrugated plating, thus circular arc bellows
It can connect to form the higher rectangle bellows of wave height with the higher corrugated plating of wave height, so that the wave height of final rectangle bellows is high
It in existing circle corrugated pipe wave height, and is no longer limited by it, effectively increases the ability that expansion joint absorbs displacement, and then improve
Expansion joint absorbs the ability of axial deformation as compensating element,；
At the circle corrugated pipe and ripple of angle between two joint faces being connected by selection trough with two neighboring wave crest
Plate is raw material, and in the case where bellows is absorbed and is displaced, angle is always positive value, and processing welding forms rectangle bellows, institute at
Angle is always positive value in the case where rectangle bellows absorbs displacement and do not absorb displacement, so that no longer gathering in bellows cold
Lime set greatly reduces medium condensate liquid to the corrosion failure of expansion joint, improves the reliability of expansion joint, extend expansion joint
Service life.
The invention also includes following advantages:
The upper surface of upper blind plate is internally inclined inclined-plane, so that Jie that upper connecting tube inner wall and upper blind plate upper surface generate
Matter condensate liquid can be arranged smoothly along inclined-plane down, and the inwardly projecting inner wall in bellows of the inner wall of upper blind plate, so that condensation
It is no longer pass through the inner wall of bellows when liquid is arranged down and is directly through bellows interior, so that the amount of condensate liquid is big on expansion joint
Big to reduce, condensate liquid greatly reduces the destructive power of expansion joint, effectively increases the reliability and service life of expansion joint；
Straight section protrudes into the inner hole of lower blind plate under bellows, and is fixedly connected on lower blind plate by locking bottom butt welding, makes
The condensate liquid that generate and flow down from ripple inside pipe wall smoothly can continue arrange down along inner wall, without by being connect with lower blind plate
Limitation and influence.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of bellows of the present invention.
Fig. 3 is the partial enlarged view in the portion A in Fig. 2.
Fig. 4 is the structural schematic diagram of bellows segment cross section of the present invention.
Fig. 5 is the structural schematic diagram of circle corrugated pipe cross section of the present invention.
Wherein: 1, upper connecting tube；2, upper blind plate；3, bellows；301, upper straight section；302, bellows segment；303, lower straight section；304,
Wave crest；305, trough；306, circular arc bellows；307, corrugated plating；4, lower blind plate；5, lower linking tube；6, circle corrugated pipe；601, it cuts
Secant.
Specific embodiment
Specific embodiments of the present invention will be described below with reference to the accompanying drawings.
As shown in Figure 1, the alkyl plant reactor expansion joint of the present embodiment, including bellows 3, connect above bellows 3
It is connected to hollow upper blind plate 2, is connected with upper connecting tube 1 on upper blind plate 2；Hollow lower blind plate 4 is connected with below bellows 3, under it is blind
Lower linking tube 5 is connected with below plate 4；
As shown in Fig. 2, the structure of bellows 3 are as follows: including bellows segment 302,302 upper end of bellows segment is extended with upper straight section 301,
302 lower end of bellows segment is extended with lower straight section 303；Bellows segment 302 is rectangle bellows with rounded corners.
The upper surface of upper blind plate 2 is that internally inclined inclined-plane, lower end surface are plane, and the end of upper connecting tube 1 passes through welding
It is connected on the ramp of blind plate 2, upper straight section 301 is by being welded to connect on the lower plane of upper blind plate 2；Upper blind plate 2 it is interior
Pars intramuralis protrudes from the inner wall of bellows 3；Lower straight section 303 protrudes into the inner hole of lower blind plate 4 and by lock bottom butt welding connection.
As shown in figure 3, bellows segment 302 includes trough 305 and wave crest 304, trough 305 is connected with two neighboring wave crest 304
Two joint faces between at angle ɑ, in the case where bellows 3 absorbs displacement or do not absorb displacement, angle ɑ is always positive value.
As shown in figure 4, the structure of rectangle bellows are as follows: including the corrugated plating 307 on four sides, four corrugated platings 307 by
Four identical intervals of circular arc bellows 306 are welded to connect.
As shown in figure 5, the method for obtaining circular arc bellows 306 on circle corrugated pipe 6, two cutting lines 601 are mutually perpendicular to
And it is isometric, the intersection point of two cutting lines 601 falls within 6 inner hole of circle corrugated pipe and at sampling, the circular arc ripple obtained at this time
The arc angle of pipe 306 is less than 90 degree.The wave height of circle corrugated pipe 6 is the difference of two radius of circles, and the length of cutting line 601 is longer than
The wave height of this circle corrugated pipe 6；The wave height and cutting line 601 for the corrugated plating 307 connecting with circular arc bellows 306 are isometric, finally
The rectangle bellows that wave height is 601 length of cutting line is obtained, the wave height of rectangle bellows is greater than circle corrugated pipe 6.
After expansion joint absorbs displacement, gaseous medium generates condensate liquid inside expansion joint；The condensate liquid of 1 inner wall of upper connecting tube
Drop down onto upper 2 upper surface of blind plate downwards along inner wall, the ramp together with the condensate liquid generated herein along upper blind plate 2 is into
The inner hole in portion is arranged, because of the inwardly projecting inner wall in bellows 3 of the inner wall of upper blind plate 2, so that condensate liquid is directly through in bellows 3
Under clan；Condensate liquid on 3 inner wall of bellows, because there are angles for the joint face of trough 305 and wave crest 304, so that condensate liquid is suitable
Inclined joint face drain into 3 tail portion of bellows down；It protrudes into the inner hole of lower blind plate 4, makes because of the lower straight section 303 of bellows 3
The condensate liquid for obtaining 3 tail portion of bellows is unaffected, directly arranges down along inner wall.
The configuration of the present invention is simple is reasonable, not only increases the ability that expansion joint absorbs displacement, improves its service performance, and
And solve the problems, such as that the condensate liquid in pipeline gathers at expansion joint, substantially increase the service life of expansion joint and reliable
Property.
Above description is explanation of the invention, is not intended to limit the invention, and limited range of the present invention is referring to right
It is required that within protection scope of the present invention, any type of modification can be made.
Claims (5)
1. a kind of alkyl plant reactor expansion joint, it is characterised in that: including bellows (3), be connected with above bellows (3)
Hollow upper blind plate (2) is connected with upper connecting tube (1) on upper blind plate (2)；Be connected with below the bellows (3) it is hollow under it is blind
Plate (4), lower blind plate (4) lower section are connected with lower linking tube (5)；
The structure of the bellows (3) are as follows: including bellows segment (302), bellows segment (302) upper end is extended with upper straight section (301), wave
Line section (302) lower end is extended with lower straight section (303)；The bellows segment (302) is rectangle bellows with rounded corners.
2. a kind of alkyl plant reactor expansion joint as described in claim 1, it is characterised in that: the upper blind plate (2)
Upper surface is that internally inclined inclined-plane, lower end surface are plane, and the end of the upper connecting tube (1) is by being welded to connect in upper blind plate
(2) on ramp, the upper straight section (301) is by being welded to connect on the lower plane of upper blind plate (2)；The upper blind plate (2)
Interior pars intramuralis protrude from the inner walls of bellows (3).
3. a kind of alkyl plant reactor expansion joint as described in claim 1, it is characterised in that: the bellows segment (302)
Including trough (305) and wave crest (304), at angle between two joint faces that trough (305) is connected with two neighboring wave crest (304)
(ɑ)。
4. a kind of alkyl plant reactor expansion joint as described in claim 1, it is characterised in that: the rectangle bellows
Structure are as follows: including the corrugated plating (307) on four sides, four corrugated platings (307) are by between four identical circular arc bellowss (306)
Every welded connecting, the arc angle of the circular arc bellows (306) is less than 90 degree.
5. a kind of alkyl plant reactor expansion joint as described in claim 1, it is characterised in that: the lower straight section (303)
It protrudes into the inner hole of lower blind plate (4) and by lock bottom butt welding connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303746.2A CN109882677B (en) | 2019-04-16 | 2019-04-16 | Alkylation device reactor expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910303746.2A CN109882677B (en) | 2019-04-16 | 2019-04-16 | Alkylation device reactor expansion joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109882677A true CN109882677A (en) | 2019-06-14 |
| CN109882677B CN109882677B (en) | 2023-11-17 |
Family
ID=66937512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910303746.2A Active CN109882677B (en) | 2019-04-16 | 2019-04-16 | Alkylation device reactor expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109882677B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4526409A (en) * | 1983-01-27 | 1985-07-02 | Adsco Manufacturing Corp. | Expansion joint |
| EP1002982A2 (en) * | 1998-11-18 | 2000-05-24 | Sail SpA | Coupling system between flange and bellows in a metallic expansion joint with corrugated bellows |
| CN201034227Y (en) * | 2007-04-08 | 2008-03-12 | 刘祥荣 | Novel rectangular compensator |
| CN201651649U (en) * | 2010-04-16 | 2010-11-24 | 张晓利 | Compound type corrugated expansion joint |
| CN202733298U (en) * | 2012-06-12 | 2013-02-13 | 金川集团股份有限公司 | Pipeline ripple compensator |
| CN103982738A (en) * | 2014-04-16 | 2014-08-13 | 江苏苏创管业科技有限公司 | Anti-corrosion rectangular corrugated expansion joint |
| CN106838526A (en) * | 2017-04-06 | 2017-06-13 | 上海板换机械设备有限公司 | Two-dimensional swelling section |
| CN206875025U (en) * | 2017-07-10 | 2018-01-12 | 安岩晨 | A kind of 3 waveform bellows and the mould for being processed into compensator |
| CN207687550U (en) * | 2017-12-22 | 2018-08-03 | 秦皇岛北方管业有限公司 | A kind of bellows and flange connection for type metal expansion joint |
| CN208185722U (en) * | 2018-04-18 | 2018-12-04 | 秦皇岛北方管业有限公司 | A kind of type metal expansion joint of condensate water-proof corrosion |
| CN208634628U (en) * | 2018-07-05 | 2019-03-22 | 洛阳美波工贸有限公司 | A kind of rectangular expansion joint |
| CN209909391U (en) * | 2019-04-16 | 2020-01-07 | 无锡金龙石化冶金设备制造有限公司 | Reactor expansion joint of alkylation device |
-
2019
- 2019-04-16 CN CN201910303746.2A patent/CN109882677B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4526409A (en) * | 1983-01-27 | 1985-07-02 | Adsco Manufacturing Corp. | Expansion joint |
| EP1002982A2 (en) * | 1998-11-18 | 2000-05-24 | Sail SpA | Coupling system between flange and bellows in a metallic expansion joint with corrugated bellows |
| CN201034227Y (en) * | 2007-04-08 | 2008-03-12 | 刘祥荣 | Novel rectangular compensator |
| CN201651649U (en) * | 2010-04-16 | 2010-11-24 | 张晓利 | Compound type corrugated expansion joint |
| CN202733298U (en) * | 2012-06-12 | 2013-02-13 | 金川集团股份有限公司 | Pipeline ripple compensator |
| CN103982738A (en) * | 2014-04-16 | 2014-08-13 | 江苏苏创管业科技有限公司 | Anti-corrosion rectangular corrugated expansion joint |
| CN106838526A (en) * | 2017-04-06 | 2017-06-13 | 上海板换机械设备有限公司 | Two-dimensional swelling section |
| CN206875025U (en) * | 2017-07-10 | 2018-01-12 | 安岩晨 | A kind of 3 waveform bellows and the mould for being processed into compensator |
| CN207687550U (en) * | 2017-12-22 | 2018-08-03 | 秦皇岛北方管业有限公司 | A kind of bellows and flange connection for type metal expansion joint |
| CN208185722U (en) * | 2018-04-18 | 2018-12-04 | 秦皇岛北方管业有限公司 | A kind of type metal expansion joint of condensate water-proof corrosion |
| CN208634628U (en) * | 2018-07-05 | 2019-03-22 | 洛阳美波工贸有限公司 | A kind of rectangular expansion joint |
| CN209909391U (en) * | 2019-04-16 | 2020-01-07 | 无锡金龙石化冶金设备制造有限公司 | Reactor expansion joint of alkylation device |
Non-Patent Citations (1)
| Title |
|---|
| 王会东等: ""矩形金属波纹管的设计制造工艺探讨"", 《第十三届全国膨胀节学术会议论文集-膨胀节技术进展》, pages 204 - 207 * |
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| Publication number | Publication date |
|---|---|
| CN109882677B (en) | 2023-11-17 |
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