CN102155538A - Reusable welded hydraulic cover of boiler and pressure vessel and manufacturing method of reusable welded hydraulic cover - Google Patents
Reusable welded hydraulic cover of boiler and pressure vessel and manufacturing method of reusable welded hydraulic cover Download PDFInfo
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- CN102155538A CN102155538A CN2011100606342A CN201110060634A CN102155538A CN 102155538 A CN102155538 A CN 102155538A CN 2011100606342 A CN2011100606342 A CN 2011100606342A CN 201110060634 A CN201110060634 A CN 201110060634A CN 102155538 A CN102155538 A CN 102155538A
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Abstract
The invention discloses a reusable welded hydraulic cover of a boiler and a pressure vessel and a manufacturing method of the reusable welded hydraulic cover. In a hydraulic test in the conventional product factory for the boiler and the pressure vessel, the hydraulic cover which is formed by assembled welding of large-diameter welding pipes of a welding groove on a construction site serves as a welding temporary pressed element; the hydraulic cover is generally formed by oxygen-acetylene cutting of a steel plate; the stressed condition of a flat welding structure of the steel plate is poor; and the steel plate is thick and heavy and usually disposable so as to cause great waste. The welded hydraulic cover of the boiler and the pressure vessel comprises a cover (1), wherein hydraulic allowance (2) is formed at the lower end of the cover. The invention is applied to manufacturing of the boiler and the pressure vessel.
Description
Technical field:
The invention belongs to boiler and pressurized container and make the field; Being specifically related to a kind of being used for can nonexpondable boiler and pressurized container welding hydraulic pressure capping and manufacture method.
Background technique:
In traditional boiler both domestic and external and the pressurized container product factory during hydrostatic test, the heavy caliber of building site bevel for welding is taken over the hydraulic pressure capping of dress weldering, it all is interim pressure parts as welding, generally all be to process by the steel plate oxygen-acetylene cutting, its dull and stereotyped welded structure force-bearing situation is poor, steel plate is thick and heavy, all is disposable use usually.Especially big, the big capping in batches of product lot quantity pressure parameter height, the size of producing, exist repeat in a large number to make, the problem of high material consumption, deficiency in economic performance.
Summary of the invention:
The purpose of invention provides capping of a kind of novel welding hydraulic pressure and special fabrication processes thereof, further optimized the manufacturing process of capping, realize that capping is improved to " lid is repeatedly used ", the purpose that reach energy-saving and cost-reducing, improves stock utilization and economic benefit by disposable use.
Above-mentioned purpose realizes by following technological scheme:
Can nonexpondable boiler and the capping of pressurized container welding hydraulic pressure, its composition comprises: capping, described capping lower end have once above hydraulic pressure surplus, and described capping connects transition and takes over, described capping adpting flange has center hole in described capping.
Described can nonexpondable boiler and the capping of pressurized container welding hydraulic pressure, described capping is spherical capping, oval capping, flat capping, tube sheet capping, dull and stereotyped capping or flange capping.
Described can nonexpondable boiler and the manufacture method of pressurized container welding hydraulic pressure capping, the hydraulic pressure capping is processed after through type selecting and strength accounting, reserves the total amount L=h * n of the follow-up repeatedly processing technology surplus of capping bevel for welding in the course of working; Before the hydrostatic test, the big adapter welding of hydraulic pressure capping and product after each hydrostatic test, is cut capping big the adapter in the hydraulic pressure surplus; Before reusing, process the capping bevel for welding once more or cut capping on request, corresponding adjustment h value by secondary operations surplus h.
Beneficial effect:
1. the present invention has overcome that in the past closure construction is single, force-bearing situation is bad, steel plate is thick and heavy, only can disposablely use according to design, and is discarded afterwards.The narrow limitation that high material consumption, utilization ratio are low, manufacture cost is high and the shortcoming that cause.
Manufacturing process of the present invention is optimized more; Realized " one lid many with ", improved several times～tens times of the utilization ratio of cover closing material and economic benefits.
Test pressure parameter of the present invention is high more, the capping Dimensions is big more, the repeated use number of times is many more, economic benefit is just remarkable more.
The technology of the present invention novelty, practicality, advanced person, reliable; Broken through the prejudice in domestic and international this field, be specially adapted to use when boiler and pressure vessel manufacturers product lot quantity are produced.
Hydraulic pressure capping of the present invention has 6 kinds of forms such as sphere, ellipse, flat, pipe-plate, flat board, flange, is fit to the boiler of multi-form, different structure, different pressures; Boiler of feeding and pressure vessel manufacturers are selected according to production actual conditions and needs.
Capping of the present invention is repeatedly used technology advanced person, with high content of technology, eliminated in the past and after the each hydrostatic test of product the disposable backward way of scrapping has been cut off in capping, realized being sealed under the situation of proof strength and usage requirement " lid to be used ".
Description of drawings:
Accompanying drawing 1 is the structural representation of this product.
Accompanying drawing 2 is spherical closure construction schematic representation of accompanying drawing 1.
Accompanying drawing 3 is oval closure construction schematic representation of accompanying drawing 1.
Accompanying drawing 4 is flat closure construction schematic representation of accompanying drawing 1.
Accompanying drawing 6 is dull and stereotyped closure construction schematic representation of accompanying drawing 1.
Accompanying drawing 7 is flange closure construction schematic representation of accompanying drawing 1.
Accompanying drawing 8 is structural representations that have machining allowance of accompanying drawing 1.
Accompanying drawing 9 is structural representations that the tube sheet capping of accompanying drawing 1 has machining allowance.
Accompanying drawing 10 is structural representations that the dull and stereotyped capping of accompanying drawing 1 has machining allowance.
Accompanying drawing 11 is that the capping of this product has the structural representation that transition is taken over.
Accompanying drawing 12 is structural representations of the capping adpting flange of this product.
Embodiment:
Embodiment 1:
A kind of can nonexpondable boiler and the capping of pressurized container welding hydraulic pressure, its composition comprises: capping 1, described capping lower end leave once above hydraulic pressure surplus 2, and described capping connects transition and takes over, described capping adpting flange 3 has center hole 4 in described capping.
Embodiment 2:
Described can nonexpondable boiler and the capping of pressurized container welding hydraulic pressure, described capping can be spherical capping 6, oval capping 7, flat capping 8, tube sheet capping 9, dull and stereotyped capping 10 or flange capping 11.
Embodiment 3:
A kind of can nonexpondable boiler and the method for manufacturing technology of pressurized container welding hydraulic pressure capping, the hydraulic pressure capping through type selecting and strength accounting after, make.The hydraulic pressure capping has center hole and is connected with flange or pipe joint; The process allowance total amount L=h * n that processes behind capping bevel for welding and the later repeatedly hydraulic pressure is reserved in design; Before the hydrostatic test, the hydraulic pressure capping is connected by weld seam with the big adapter of product, after each hydrostatic test, cut capping or transition adapter in the hydraulic pressure surplus big the adapter, must not damage mother metal, before reusing, process the capping bevel for welding once more by machining allowance h, special circumstances also can be cut capping on request, corresponding adjustment h value; According to design strength and tired parameter, capping is reused n time in the hydraulic pressure detection again.
The method of manufacturing technology that described boiler and pressurized container welding hydraulic pressure capping transition are taken over, described secondary operations surplus h special circumstances also can be cut capping or transition on request and be taken over, corresponding adjustment h value.
Embodiment 4:
Above embodiment is described can nonexpondable boiler and the method for manufacturing technology of pressurized container welding hydraulic pressure capping, capping through type selecting and strength accounting after, reserve capping bevel for welding processing technology surplus total amount L=h * n repeatedly after this; After the each hydrostatic test of product, cut capping, must not damage mother metal, process the capping bevel for welding once more by machining allowance h once more big the adapter in the hydraulic pressure surplus; Capping is reused n time.N is that number of times is reused in capping, capping bevel for welding secondary operations process allowance total amount L, and piece number 12 among the figure, secondary operations surplus h, piece number 13 among the figure.
Embodiment 5:
Above embodiment is described can nonexpondable boiler and the method for manufacturing technology of pressurized container welding hydraulic pressure capping, and described secondary operations surplus h special circumstances also can be cut capping on request, corresponding adjustment h value; H is the each secondary operations surplus of capping.
Embodiment 6:
Above embodiment is described can nonexpondable boiler and the method for manufacturing technology of pressurized container welding hydraulic pressure capping, described spherical capping:
⑴ the type selecting and the strength accounting of spherical capping are reserved the straight flange surplus total amount L=h * n that repeats to process; ⑵ cover closing material is reviewed and compression moulding; ⑶ capping perforate and the Vehicle Processing of girth welding groove; ⑷ press welding procedure specification dress sealing lid and big adapter, seam flange, and nondestructive inspection is qualified; ⑸ capping is with product heat treatment, the hydrostatic test; ⑹ cut capping big the adapter in the hydraulic pressure surplus 14; ⑺ press secondary operations straight flange surplus h Vehicle Processing capping bevel for welding once more; ⑻ be used for next product once more after capping is qualified on inspection; ⑼ capping recycles n time by ⑷～⑻.
(10) special circumstances also can be cut capping on request, corresponding adjustment h value.
Embodiment 7:
The method of manufacturing technology that described boiler of above embodiment and pressurized container welding hydraulic pressure capping transition are taken over, described tube sheet capping:
⑴ the type selecting and the strength accounting of tube sheet capping are reserved the length surplus total amount L=h * n that repeats to process; ⑵ capping plate and tubing are reviewed and preparation; ⑶ the bevel for welding Vehicle Processing of capping plate and pipe; By welding procedure specification dress sealing cover plate, pipe, take over weld seam greatly, nondestructive inspection is qualified; ⑸ capping is with product heat treatment, the hydrostatic test; ⑹ cut capping big the adapter in the hydraulic pressure surplus; ⑺ press secondary operations length surplus h Vehicle Processing capping bevel for welding once more; ⑻ be used for next product once more after capping is qualified on inspection; ⑼ capping recycles n time by ⑷～⑻ requirement.
(10) special circumstances also can be cut capping on request, corresponding adjustment h value.
Embodiment 8:
The method of manufacturing technology that described boiler of above embodiment and pressurized container welding hydraulic pressure capping transition are taken over, described dull and stereotyped capping:
⑴ the type selecting and the strength accounting of dull and stereotyped capping are reserved the thickness surplus total amount L=h * n that repeats to process; ⑵ cover closing material is reviewed and preparation; ⑶ the Vehicle Processing of capping bevel for welding; ⑷ by welding procedure specification dress sealing lid and take over weld seam, nondestructive inspection greatly; ⑸ capping is with product heat treatment, the hydrostatic test; ⑹ cut capping big the adapter in the hydraulic pressure surplus; ⑺ press secondary operations thickness surplus h Vehicle Processing capping bevel for welding once more; ⑻ be used for next product once more after capping is qualified on inspection; ⑼ capping recycles n time by ⑷～⑻ requirement.(10) special circumstances also can be cut capping on request, corresponding adjustment h value.
Embodiment 9:
The method of manufacturing technology that the described boiler of above embodiment and pressurized container welding hydraulic pressure capping transition is taken over, the capping of welding hydraulic pressure are common in pressure test in big the adapters factory of boiler and pressurized container product building site bevel for welding, are the interim pressure parts that welds.During the fitness for purpose pressure test, the interim pressure parts that welds on boiler and the pressurized container should be taked adequate measures, guarantees its intensity and Security.
Claims (3)
- One kind can nonexpondable boiler and the capping of pressurized container welding hydraulic pressure, its composition comprises: capping is characterized in that: described capping lower end has once above hydraulic pressure surplus, and described capping connects transition and takes over, described capping adpting flange has center hole in described capping.
- 2. according to claim 1 can nonexpondable boiler and the capping of pressurized container welding hydraulic pressure, it is characterized in that: described capping is spherical capping, oval capping, flat capping, tube sheet capping, dull and stereotyped capping or flange capping.
- 3. a claim 1 is described can nonexpondable boiler and the manufacture method of pressurized container welding hydraulic pressure capping, it is characterized in that: process behind hydraulic pressure capping process type selecting and the strength accounting, reserve the total amount L=h * n of the follow-up repeatedly processing technology surplus of capping bevel for welding in the course of working; Before the hydrostatic test, the big adapter welding of hydraulic pressure capping and product after each hydrostatic test, is cut capping big the adapter in the hydraulic pressure surplus; Before reusing, process the capping bevel for welding once more or cut capping on request, corresponding adjustment h value by secondary operations surplus h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110060634.2A CN102155538B (en) | 2011-03-14 | 2011-03-14 | Can nonexpondable boiler and pressurized vessel welding hydraulic cover and manufacture method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110060634.2A CN102155538B (en) | 2011-03-14 | 2011-03-14 | Can nonexpondable boiler and pressurized vessel welding hydraulic cover and manufacture method |
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| Publication Number | Publication Date |
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| CN102155538A true CN102155538A (en) | 2011-08-17 |
| CN102155538B CN102155538B (en) | 2016-06-08 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338684A (en) * | 2011-09-26 | 2012-02-01 | 张家港化工机械股份有限公司 | Connecting structure for pressure test of pressure test sealing head and nozzle of surfacing reinforcing pipe |
| CN102649221A (en) * | 2012-05-18 | 2012-08-29 | 广东格美淇电器有限公司 | Production method of inner liner of electric water heater |
| CN102797919A (en) * | 2012-07-25 | 2012-11-28 | 哈尔滨锅炉厂有限责任公司 | Large-aperture and thick-wall joint pipe between boiler and pressure vessel |
| CN108413170A (en) * | 2018-06-11 | 2018-08-17 | 哈尔滨锅炉厂有限责任公司 | The one dual-purpose method of lid of the flat closure assemblies of bearing device hydraulic pressure |
| CN108548725A (en) * | 2018-04-04 | 2018-09-18 | 兰州兰石重型装备股份有限公司 | The pressure-measuring method that pressure vessel minor diameter opening is taken over |
| CN109058457A (en) * | 2018-09-14 | 2018-12-21 | 哈尔滨锅炉厂有限责任公司 | A kind of not isometrical water pressure end cap of bearing device and preparation method thereof |
| CN109175898A (en) * | 2018-09-14 | 2019-01-11 | 哈尔滨锅炉厂有限责任公司 | Bearing device heavy caliber adapter tube hydraulic pressure surplus manufacturing method |
| CN109396756A (en) * | 2018-09-14 | 2019-03-01 | 哈尔滨锅炉厂有限责任公司 | The manufacturing method of welding neck flange hydraulic cover structure |
| CN110542611A (en) * | 2018-05-29 | 2019-12-06 | 兰州兰石重型装备股份有限公司 | Equipment pressure test adapter tube and pressure test method |
| CN114571053A (en) * | 2022-03-18 | 2022-06-03 | 北京航天动力研究所 | Titanium alloy vacuum diffusion welding spray pipe and design method |
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| DE3724191A1 (en) * | 1987-07-17 | 1989-01-26 | Wolf Klimatechnik Gmbh | Tank with a closable opening |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102338684A (en) * | 2011-09-26 | 2012-02-01 | 张家港化工机械股份有限公司 | Connecting structure for pressure test of pressure test sealing head and nozzle of surfacing reinforcing pipe |
| CN102649221A (en) * | 2012-05-18 | 2012-08-29 | 广东格美淇电器有限公司 | Production method of inner liner of electric water heater |
| CN102649221B (en) * | 2012-05-18 | 2014-03-26 | 广东格美淇电器有限公司 | Production method of inner liner of electric water heater |
| CN102797919A (en) * | 2012-07-25 | 2012-11-28 | 哈尔滨锅炉厂有限责任公司 | Large-aperture and thick-wall joint pipe between boiler and pressure vessel |
| CN108548725A (en) * | 2018-04-04 | 2018-09-18 | 兰州兰石重型装备股份有限公司 | The pressure-measuring method that pressure vessel minor diameter opening is taken over |
| CN110542611A (en) * | 2018-05-29 | 2019-12-06 | 兰州兰石重型装备股份有限公司 | Equipment pressure test adapter tube and pressure test method |
| CN108413170A (en) * | 2018-06-11 | 2018-08-17 | 哈尔滨锅炉厂有限责任公司 | The one dual-purpose method of lid of the flat closure assemblies of bearing device hydraulic pressure |
| CN109058457A (en) * | 2018-09-14 | 2018-12-21 | 哈尔滨锅炉厂有限责任公司 | A kind of not isometrical water pressure end cap of bearing device and preparation method thereof |
| CN109175898A (en) * | 2018-09-14 | 2019-01-11 | 哈尔滨锅炉厂有限责任公司 | Bearing device heavy caliber adapter tube hydraulic pressure surplus manufacturing method |
| CN109396756A (en) * | 2018-09-14 | 2019-03-01 | 哈尔滨锅炉厂有限责任公司 | The manufacturing method of welding neck flange hydraulic cover structure |
| CN114571053A (en) * | 2022-03-18 | 2022-06-03 | 北京航天动力研究所 | Titanium alloy vacuum diffusion welding spray pipe and design method |
| CN114571053B (en) * | 2022-03-18 | 2023-12-12 | 北京航天动力研究所 | Titanium alloy vacuum diffusion welding spray pipe and design method |
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|---|---|
| CN102155538B (en) | 2016-06-08 |
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