CN103212953B - Assembling and welding technology of middle shell cover, accessories and barrel of hydrogenation reactor - Google Patents
Assembling and welding technology of middle shell cover, accessories and barrel of hydrogenation reactor Download PDFInfo
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- CN103212953B CN103212953B CN201310150686.8A CN201310150686A CN103212953B CN 103212953 B CN103212953 B CN 103212953B CN 201310150686 A CN201310150686 A CN 201310150686A CN 103212953 B CN103212953 B CN 103212953B
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- cylindrical shell
- shell cover
- middle shell
- middle head
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Abstract
The invention relates to an assembling and welding technology of a middle shell cover, accessories and a barrel of a hydrogenation reactor. The technology comprises (1) checking the size of the middle shell cover and the quality of the surface of the middle shell cover after the middle shell cover is formed, and ensuring that the middle shell cover is nondestructively detected to be qualified; (2) drawing an opening line, a machining line and a detecting line of a center hole of the middle shell cover, and checking the size of the opening line, the size of the machining line and the size of the detecting line; (3) forming the center hole, and machining a groove of the center hole and an end port of the middle shell cover through a vertical lathe; (4) assembling and welding the middle shell cover and an interior manhole, polishing the surface of a welding joint so as to ensure smooth transition, and ensuring that the welding joint is nondestructively detected to be qualified; (5) welding a ring plate, a rib plate, a small barrel and the middle shell cover together; (6) machining the lower end surface of the ring plate; and (7) filling the middle shell cover from an upper end port of the barrel, adjusting the middle shell cover and the barrel until the middle shell cover and the barrel are homocentric, and then fixing the middle shell cover and the barrel, and last, welding a clip and the middle shell cover in a point mode. The assembling and welding technology of the middle shell cover, the accessories and the barrel of the hydrogenation reactor avoids hanging and turning deformation and welding deformation of the middle shell cover, the accessories and the barrel in the assembling and welding process.
Description
Technical field
The present invention relates to the welding procedure of hydrogenation reactor internals in petrochemical industry, particularly relate to the assembly welding technique of hydrogenation reactor Middle head and its annex and cylindrical shell.
Background technology
Current hydrogenation reactor reaches a point object for bed reaction by space in supportive grid partitioned bottle substantially, and is the domestic technology just brought into use with Middle head separation bed.General end socket is side pressurized, and Middle head is then both sides pressurized.Due to the position of Middle head and the difference of pressurized, itself and annex (inner manhole, ring flat-plate, gusset, little cylindrical shell, clamp etc.) and the packaging technology of cylindrical shell also more difficult than general end socket, and be generally arranged in after ring flat-plate forming one piece in assembly welding process or integrally carry out the processing of ring flat-plate lower surface at ring flat-plate and little cylindrical shell assembly welding afterwards, the former is processed into plane too early, hangs to turn in journey all to there is deformation in follow-up welding and part; The latter with little cylindrical shell assembly welding aft-loaded airfoil, avoid and hanging the distortion of sequence of changing a job with the welding deformation in little cylindrical shell assembly welding process and part, but hanging when assembling with end socket cannot be avoided to change shape and welding deformation.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind ofly avoids hanging in Middle head and its annex and cylindrical shell assembly welding process to change the simple hydrogenation reactor Middle head of shape and welding deformation and the assembly welding technique of its annex and cylindrical shell.
For solving the problem, the assembly welding technique of hydrogenation reactor Middle head of the present invention and its annex and cylindrical shell, is characterized in that: this technique comprises the following steps:
(1) the shaping rear inspection Middle head size of Middle head and surface quality, and qualified through Non-Destructive Testing;
(2) mark the line of perforations of Middle head centre bore, processing line, inspection line and also check line size;
(3) centre bore processed is opened, vertical Vehicle Processing centre bore groove and Middle head port;
(4) assembly welding Middle head and inner manhole, polishing welding seams surface rounding off, weld seam is qualified through Non-Destructive Testing;
(5) ring flat-plate, gusset, little cylindrical shell, Middle head are welded together;
(6) ring flat-plate lower surface is processed;
(7) Middle head to be loaded and to be adjusted to Middle head concentric with cylindrical shell from cylindrical shell upper port, then Middle head and cylindrical shell are fixed, finally by clamp and Middle head spot welding.
After ring flat-plate, gusset, little cylindrical shell being manufactured in described step (5), assembly welding integrally, the entirety then ring flat-plate, gusset, little cylindrical shell assembly welding become by ring flat-plate and bolt point postwelding and Middle head firm welding.
When described step (7) middle cylinder body and Middle head are assembled, if cylindrical shell is single-unit, then cylindrical shell answers vertically-arranged to put; If cylindrical shell is multiple shell ring assembly weldings, then cylindrical shell should horizontally-arrangedly be put.
The present invention compared with prior art has the following advantages:
1, ring flat-plate, gusset, little cylindrical shell, Middle head are carried out the processing of ring flat-plate lower surface by the present invention again after welding together, thus avoid hanging in Middle head and its annex and cylindrical shell assembly welding process and change shape and welding deformation.
2, present invention process is simple, easy to operate.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
Fig. 1 is structural representation of the present invention.
Fig. 2 is partial enlarged drawing of the present invention.
In figure: the inner manhole 3-ring flat-plate 4-gusset 5-of 1-Middle head 2-little cylindrical shell 6-cylindrical shell 7-clamp.
Detailed description of the invention
As shown in Figure 1, 2, the assembly welding technique of hydrogenation reactor Middle head and its annex and cylindrical shell, this technique comprises the following steps:
(1) shaping rear inspection Middle head 1 size of Middle head 1 and surface quality, and qualified through Non-Destructive Testing;
(2) mark the line of perforations of Middle head 1 centre bore, processing line, inspection line and also check line size;
(3) centre bore processed is opened, vertical Vehicle Processing centre bore groove and Middle head 1 port;
(4) assembly welding Middle head 1 and inner manhole 2, polishing welding seams surface rounding off, weld seam is qualified through Non-Destructive Testing;
(5) ring flat-plate 3, gusset 4, little cylindrical shell 5, Middle head 1 are welded together;
(6) ring flat-plate 3 lower surface is processed;
(7) Middle head 1 to be loaded and to be adjusted to Middle head 1 concentric with cylindrical shell 6 from cylindrical shell 6 upper port, then Middle head 1 and cylindrical shell 6 are fixed, finally by clamp 7 and Middle head 1 spot welding.
After ring flat-plate 3, gusset 4, little cylindrical shell 5 being manufactured in step (5), assembly welding integrally, the entirety then ring flat-plate 3, gusset 4, little cylindrical shell 5 assembly welding become by ring flat-plate 3 and bolt point postwelding and Middle head 1 firm welding.
When step (7) middle cylinder body 6 and Middle head 1 are assembled, if cylindrical shell 6 is single-unit, then cylindrical shell 6 answers vertically-arranged to put; If cylindrical shell 6 is multiple shell ring assembly weldings, then cylindrical shell 6 should horizontally-arrangedly be put.
Claims (3)
1. the assembly welding technique of hydrogenation reactor Middle head and its annex and cylindrical shell, is characterized in that: this technique comprises the following steps:
(1) shaping rear inspection Middle head (1) size of Middle head (1) and surface quality, and qualified through Non-Destructive Testing;
(2) mark the line of perforations of Middle head (1) centre bore, processing line, inspection line and also check line size;
(3) centre bore processed is opened, with vertical lathe machining center hole groove and Middle head (1) port;
(4) assembly welding Middle head (1) and inner manhole (2), polishing welding seams surface rounding off, weld seam is qualified through Non-Destructive Testing;
(5) ring flat-plate (3), gusset (4), little cylindrical shell (5), Middle head (1) are welded together;
(6) ring flat-plate (3) lower surface is processed;
(7) Middle head (1) to be loaded and to be adjusted to Middle head (1) concentric with cylindrical shell (6) from cylindrical shell (6) upper port, then Middle head (1) and cylindrical shell (6) are fixed, finally by clamp (7) and Middle head (1) spot welding.
2. the assembly welding technique of hydrogenation reactor Middle head as claimed in claim 1 and its annex and cylindrical shell, it is characterized in that: in described step (5), ring flat-plate (3), gusset (4), little cylindrical shell (5) are manufactured good after assembly welding integrally, the entirety then ring flat-plate (3), gusset (4), little cylindrical shell (5) assembly welding become by ring flat-plate (3) and bolt point postwelding and Middle head (1) firm welding.
3. the assembly welding technique of hydrogenation reactor Middle head as claimed in claim 1 and its annex and cylindrical shell, it is characterized in that: when described step (7) middle cylinder body (6) and Middle head (1) are assembled, if cylindrical shell (6) is single-unit, then cylindrical shell (6) answers vertically-arranged to put; If cylindrical shell (6) is multiple shell ring assembly welding, then cylindrical shell (6) should horizontally-arrangedly be put.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310150686.8A CN103212953B (en) | 2013-04-27 | 2013-04-27 | Assembling and welding technology of middle shell cover, accessories and barrel of hydrogenation reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310150686.8A CN103212953B (en) | 2013-04-27 | 2013-04-27 | Assembling and welding technology of middle shell cover, accessories and barrel of hydrogenation reactor |
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| Publication Number | Publication Date |
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| CN103212953A CN103212953A (en) | 2013-07-24 |
| CN103212953B true CN103212953B (en) | 2015-04-15 |
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| CN201310150686.8A Active CN103212953B (en) | 2013-04-27 | 2013-04-27 | Assembling and welding technology of middle shell cover, accessories and barrel of hydrogenation reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108202212A (en) * | 2018-01-30 | 2018-06-26 | 张培栋 | A kind of processing method of paper-making drying cylinder, paper-making drying cylinder and paper making equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104191176B (en) * | 2014-08-25 | 2016-11-16 | 沈阳航天新光集团有限公司 | The preparation method of cryogenic flow weighing container |
| CN109807568A (en) * | 2019-03-20 | 2019-05-28 | 江阴海虹精密机械有限公司 | Tenui-exinous motor casing stirring friction-welding technique |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1087849A (en) * | 1992-12-07 | 1994-06-15 | 自贡市鸿鹤化工总厂 | A kind of manufacturing process of container class end socket and device |
| KR20110012680A (en) * | 2009-07-31 | 2011-02-09 | 미래메탈테크(주) | Method making disk for turbo charger |
| CN101829856B (en) * | 2010-04-14 | 2012-05-30 | 中国核工业二三建设有限公司 | Method for manufacturing superlarge spherical seal head |
| CN102267013B (en) * | 2010-06-04 | 2013-06-19 | 中国石油大学(华东) | Connecting method for gas mixture connecting tube and sealing head of hydrogenation reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108202212A (en) * | 2018-01-30 | 2018-06-26 | 张培栋 | A kind of processing method of paper-making drying cylinder, paper-making drying cylinder and paper making equipment |
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