CN105689907A - Assembly welding process for pressure vessel - Google Patents

Assembly welding process for pressure vessel Download PDF

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Publication number
CN105689907A
CN105689907A CN201410698508.3A CN201410698508A CN105689907A CN 105689907 A CN105689907 A CN 105689907A CN 201410698508 A CN201410698508 A CN 201410698508A CN 105689907 A CN105689907 A CN 105689907A
Authority
CN
China
Prior art keywords
flange
assembling
welding
assembly welding
cylinder
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
Application number
CN201410698508.3A
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Chinese (zh)
Inventor
李仁荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chongqing Banan District Renrong Machinery Factory
Original Assignee
Chongqing Banan District Renrong Machinery Factory
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chongqing Banan District Renrong Machinery Factory filed Critical Chongqing Banan District Renrong Machinery Factory
Priority to CN201410698508.3A priority Critical patent/CN105689907A/en
Publication of CN105689907A publication Critical patent/CN105689907A/en
Pending legal-status Critical Current

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Abstract

The invention discloses an assembly welding process for a pressure vessel. The assembly welding process comprises the following steps that 1, whether a pressure part marker and a product serial number are clear or not is inspected; 2, a connection pipe and a flange are welded according to welding process requirements, and the code name of a welder should be printed on the connection pipe with the nominal diameter being larger than DN 250; 3, a main flange, a flange connection pipe and a barrel body or a sealing head are subjected to assembly welding; 4, a reinforcing ring, a supporting base, a base plate and the barrel body or the sealing head are subjected to assembly welding; and 5, an internal part of equipment and the barrel part or the sealing head are subjected to assembly welding. The assembly welding process for the pressure vessel is reasonable in process and low in manufacturing cost.

Description

A kind of assembling assembly welding technique of pressure vessel
Technical field
The present invention relates to the assembling assembly welding technique of a kind of pressure vessel。
Background technology
The assembling assembly welding technique of existing pressure vessel exists that procedure arrangement is unreasonable, operation is various, operator's skill requirement is higher so that production cost is higher。
Summary of the invention
Because the drawbacks described above of prior art, the technical problem to be solved be to provide a kind of operation rationally, the assembling assembly welding technique of the pressure vessel of low cost of manufacture。
For achieving the above object, the invention provides
The assembling assembly welding technique of a kind of pressure vessel, comprises the steps:
1), check that whether pressure containing part labelling and production code member be clear;
2), adapter connect welding process requirement with flange and weld, take over and stamp welder's code name more than DN250;
3), main flange and flange connecting pipe and cylinder or end socket assembling assembly welding
3.1) main flange assembling, first removes flange and oils dirt, and by figure requirements: stroke flange rigging position line, it assembles the requirement answering coincidence pattern and technical papers;
3.2) flange connecting pipe, assembling:
Use fixture when A, assembling as far as possible, ensureing to be located vertical or horizontal to the spindle centerline (having specifying by pattern of particular/special requirement) of cylinder or end socket by flange face, its deviation all must not exceed the 1% of flange outer diameter, and it is not more than 3mm (when flange outer diameter is less than 1OOmm, by 1OOmm)
B, interior extension tube attached extension elongation deviation are ± 3mm, and the perpendicularity of cylinder or end socket be should be less than 1.5mm by it;
C, its welding, by corresponding welding procedure, should stamp welder's code name more than DN250 adapter;
4), stiffening ring, bearing, backing plate and cylinder or end socket assembling assembly welding
4.1) adapter having stiffening ring by after appropriate for reinforcement lap welding, then should carry out assembling adapter;Reinforcement circle matching requirements;
A, stiffening ring answer basic guarantee with perforate central coaxial;
B, stiffening ring should be close to housing, and its local gap cannot be greater than 2mm(holder base plate and also requires that);
4.2) bearing should be located vertical or horizontal to cylinder spindle centerline, more than 2mm, and must ensure that seating plane and seating plane are in same level altogether under deviation;
5), equipment internals and barrier part or closing end component assembling assembly welding
5.1) assembling of equipment internals should avoid the vertical girth joint of cylinder, cannot be less than 50mm;
5.2) assembling of equipment internals should be vertical with Barrel alignment, and its skew cannot be greater than 5mm, and gradient is ± 2mm;
5.3) clean welding slag and splash must be removed after the assembling of each part parts;
5.4) overall inspection: carry out item by item by pressure vessel manufacturing generic inspection code, and projects measured data is inserted the log that grades (including the water pressure test, air-tight test)。
The invention has the beneficial effects as follows: operation of the present invention is reasonable, low cost of manufacture。
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
The assembling assembly welding technique of a kind of pressure vessel, comprises the steps:
1), check that whether pressure containing part labelling and production code member be clear;
2), adapter connect welding process requirement with flange and weld, take over and stamp welder's code name more than DN250;
3), main flange and flange connecting pipe and cylinder or end socket assembling assembly welding
3.1) main flange assembling, first removes flange and oils dirt, and by figure requirements: stroke flange rigging position line, it assembles the requirement answering coincidence pattern and technical papers;
3.2) flange connecting pipe, assembling:
Use fixture when A, assembling as far as possible, ensureing to be located vertical or horizontal to the spindle centerline (having specifying by pattern of particular/special requirement) of cylinder or end socket by flange face, its deviation all must not exceed the 1% of flange outer diameter, and it is not more than 3mm (when flange outer diameter is less than 1OOmm, by 1OOmm)
B, interior extension tube attached extension elongation deviation are ± 3mm, and the perpendicularity of cylinder or end socket be should be less than 1.5mm by it;
C, its welding, by corresponding welding procedure, should stamp welder's code name more than DN250 adapter;
4), stiffening ring, bearing, backing plate and cylinder or end socket assembling assembly welding
4.1) adapter having stiffening ring by after appropriate for reinforcement lap welding, then should carry out assembling adapter;Reinforcement circle matching requirements;
A, stiffening ring answer basic guarantee with perforate central coaxial;
B, stiffening ring should be close to housing, and its local gap cannot be greater than 2mm(holder base plate and also requires that);
4.2) bearing should be located vertical or horizontal to cylinder spindle centerline, more than 2mm, and must ensure that seating plane and seating plane are in same level altogether under deviation;
5), equipment internals and barrier part or closing end component assembling assembly welding
5.1) assembling of equipment internals should avoid the vertical girth joint of cylinder, cannot be less than 50mm;
5.2) assembling of equipment internals should be vertical with Barrel alignment, and its skew cannot be greater than 5mm, and gradient is ± 2mm;
5.3) clean welding slag and splash must be removed after the assembling of each part parts;
5.4) overall inspection: carry out item by item by pressure vessel manufacturing generic inspection code, and projects measured data is inserted the log that grades (including the water pressure test, air-tight test)。

Claims (1)

1. the assembling assembly welding technique of a pressure vessel, it is characterised in that comprise the steps:
1), check that whether pressure containing part labelling and production code member be clear;
2), adapter connect welding process requirement with flange and weld, take over and stamp welder's code name more than DN250;
3), main flange and flange connecting pipe and cylinder or end socket assembling assembly welding
3.1) main flange assembling, first removes flange and oils dirt, and by figure requirements: stroke flange rigging position line, it assembles the requirement answering coincidence pattern and technical papers;
3.2) flange connecting pipe, assembling:
Use fixture when A, assembling as far as possible, ensureing to be located vertical or horizontal to the spindle centerline (having specifying by pattern of particular/special requirement) of cylinder or end socket by flange face, its deviation all must not exceed the 1% of flange outer diameter, and it is not more than 3mm (when flange outer diameter is less than 1OOmm, by 1OOmm)
B, interior extension tube attached extension elongation deviation are ± 3mm, and the perpendicularity of cylinder or end socket be should be less than 1.5mm by it;
C, its welding, by corresponding welding procedure, should stamp welder's code name more than DN250 adapter;
4), stiffening ring, bearing, backing plate and cylinder or end socket assembling assembly welding
4.1) adapter having stiffening ring by after appropriate for reinforcement lap welding, then should carry out assembling adapter;Reinforcement circle matching requirements;
A, stiffening ring answer basic guarantee with perforate central coaxial;
B, stiffening ring should be close to housing, and its local gap cannot be greater than 2mm(holder base plate and also requires that);
4.2) bearing should be located vertical or horizontal to cylinder spindle centerline, more than 2mm, and must ensure that seating plane and seating plane are in same level altogether under deviation;
5), equipment internals and barrier part or closing end component assembling assembly welding
5.1) assembling of equipment internals should avoid the vertical girth joint of cylinder, cannot be less than 50mm;
5.2) assembling of equipment internals should be vertical with Barrel alignment, and its skew cannot be greater than 5mm, and gradient is ± 2mm;
5.3) clean welding slag and splash must be removed after the assembling of each part parts;
5.4) overall inspection: carry out item by item by pressure vessel manufacturing generic inspection code, and projects measured data is inserted the log that grades (including the water pressure test, air-tight test)。
CN201410698508.3A 2014-11-28 2014-11-28 Assembly welding process for pressure vessel Pending CN105689907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410698508.3A CN105689907A (en) 2014-11-28 2014-11-28 Assembly welding process for pressure vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410698508.3A CN105689907A (en) 2014-11-28 2014-11-28 Assembly welding process for pressure vessel

Publications (1)

Publication Number Publication Date
CN105689907A true CN105689907A (en) 2016-06-22

Family

ID=56295277

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410698508.3A Pending CN105689907A (en) 2014-11-28 2014-11-28 Assembly welding process for pressure vessel

Country Status (1)

Country Link
CN (1) CN105689907A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106695150A (en) * 2017-01-25 2017-05-24 江苏岭南发酵设备有限公司 Welding method used for large-size fermentation tank
CN108500493A (en) * 2017-12-07 2018-09-07 浙江星卓换热设备有限公司 A kind of processing technology taken over flange

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106695150A (en) * 2017-01-25 2017-05-24 江苏岭南发酵设备有限公司 Welding method used for large-size fermentation tank
CN108500493A (en) * 2017-12-07 2018-09-07 浙江星卓换热设备有限公司 A kind of processing technology taken over flange

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C06 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20160622