CN1255645C - Manufacturing method of low-temperature liquid storage tank - Google Patents
Manufacturing method of low-temperature liquid storage tank Download PDFInfo
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- CN1255645C CN1255645C CN 200310108640 CN200310108640A CN1255645C CN 1255645 C CN1255645 C CN 1255645C CN 200310108640 CN200310108640 CN 200310108640 CN 200310108640 A CN200310108640 A CN 200310108640A CN 1255645 C CN1255645 C CN 1255645C
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Abstract
The present invention discloses a low-temperature liquid storage tank manufacturing method which comprises two steps of the outer casing installation and the inner tube installation. Firstly, the outer casing installation has the proposal that a first ring wall plate is welded and installed at the upper part of an outer casing, and the inner wall of the first ring wall plate expands into a circular state for preventing the deformation by an expansion ring; an outer casing top is installed at the top of the first ring wall so that the first ring wall plate can be lifted; a second ring wall plate is welded and installed according to the same method, and consequently, the first ring wall plate and the second ring wall plate are formed in a circumferential weld way and lifted. The rest outer wall plate is welded and installed in sequence from top to bottom based on the proposal, and finally, the bottom of the outer casing is welded with a bottom plate of the outer casing. The inner tube installation is basically the same as the outer casing welding installation. Because the inner tube installation is carried out after the outer casing installation, the outer casing has effect on screening and shielding wind and rain in the processing of installing the inner tube. Thus, the present invention is good for the inner tube welding installation to greatly improve the quality of the welding operation, and moreover, the present invention has well damp proofing effect on the construction for a heat-insulating structure. Furthermore, a user does not need to build a scaffold and use a crane to match for a long time in the method so that the adverse factor of the work high above the ground can be eliminated.
Description
Technical field
The present invention relates to a kind of low-temperature liquid storage tank making method.
Background technique
Along with professional the increasing of domestic air separation facility installation in recent years, the cryogenic liquide storage and transportation equipment supporting with it also develops very fast, opened up the application of cryogenic technique significantly, to the large-scale low-temperature liquid storage vessel, the storage tank volume by the assembled on site manufacturing commonly used has 100 cubic metres to 2000 cubic metres from small-sized vacuum insulation bunkerage.
Low-temperature (low temperature) vessel is mainly stored the cryogenic liquide material, as liquid oxygen, and boiling point :-182.93 ℃; Liquid argon, boiling point :-185.86 ℃; Liquid fluorine, boiling point :-188.12 ℃; Liquid nitrogen, boiling point :-195.8 ℃; Because the boiling point of medium is lower, this just requires storage tank to have the good cold insulation heat insulating construction.Its structure is formed and is comprised inner core, thermal insulating material interlayer, adiabatic basis, shell, pipe valve system, pressure, temperature, level detection instrument and inner and outer shell anti-explosion safety, urgent pumping equipment etc.
The appearance history of big volume cryogenic liquid tank is not long, and in the past few years, domestic method commonly used is a upright method of hull section construction, inner core is installed earlier, and shell is installed in the back, and wallboard lifts welding piecewise by hoist from the outside, it is assembled from down to up, and this just needs long-time crane to cooperate, and hoisting cost increases.Simultaneously, the heat insulating construction of liquid storage vessel such as foam glass brick construction are subjected to weather effect bigger, make moist easily, and especially the inner core welding quite is subjected to the influence of weather.And, need to set up full hall scaffold in order to assemble welding along shell wall, mostly be high-lift operation, increased the welded and installed difficulty.
Summary of the invention
The technical problem to be solved in the present invention is to utilize upside-down method of hull-section construction, and a kind of low-temperature liquid storage tank making method is provided, and does not need long-time crane to cooperate, and has reduced the weather effect that heat insulating construction construction and inner container welding are subjected to, and has eliminated the unfavorable factor of high-lift operation.
For solving the problems of the technologies described above, this low-temperature liquid storage tank making method comprises shell installation and inner tube installation.Be specially:
1) carrying out shell earlier installs, installation method is: build foundation platform and shell bottom plate laying by prior art, welded and installed shell upper first lap wallboard then, its inwall holds round with anti-deforming with packing, in the first lap top of panels shell crown is installed, above-mentioned first lap wallboard is promoted, by the same procedure welded and installed second circle wallboard, with the first lap wallboard and the second circle wallboard girth welding, again the first lap wallboard is promoted with the second circle wallboard, welded and installed the 3rd circle wallboard, the rest may be inferred, and the shell wallboard of welded and installed remainder successively from top to bottom is until the required height of shell, wherein foot one circle wallboard is reserved one and is not adorned, and at last outer casing bottom and shell bottom plate is welded.
2) inner tube installation, installation method is: the welded and installed and above-mentioned 1 of inner core crown and inner core wallboard) the welded and installed method of shell crown and shell wallboard is identical, after the inner core welded and installed is finished, promote whole inner barrel, carry out concrete foundation layer, insulating brick, all layings of pressing plate, interior tube end plate by prior art then, after laying is finished interior tube bottom and interior tube end plate are welded.
3) carry out pipe arrangement, mounted valve and instrument after inner core, the shell installation.
4) filled heat insulating material layer between shell and inner core at last.
This manufacture method, owing to assemble inner core after the first package shell, in the process of assembling inner core, shell can play shielding, windproof effect of keeping off the rain, the welded and installed that helps inner core has improved welding quality greatly, and good moisture-proof role has been played in the construction of cold insulation heat insulating construction.Upside-down method of hull-section construction is adopted in the assembling of shell and inner core, makes major part operate in ground and carries out, and does not need to set up scaffold, does not need to utilize for a long time crane, greatly reduces cost of production, has eliminated the unfavorable factor of high-lift operation.
Description of drawings
Fig. 1 is the structural representation of cryogenic liquid tank; Fig. 2 is a shell lifting plan structure schematic representation;
Fig. 3 is that shell lifts main TV structure schematic representation;
Fig. 4 is an inner core lifting plan structure schematic representation;
Fig. 5 is that inner core lifts main TV structure schematic representation.
Embodiment
Following method is adopted in the installation of cryogenic liquid tank shown in Figure 1:
1. make 0 °, 90 °, 180 ° and 270 °, 360 ° axis and central point on the foundation platform 10, make tangible mark, and, lay to instruct later base plate as benchmark, and as the foundation of staircase 11 location and nozzle orientation.
2. lay shell bottom plate 7, mark every base plate key plan on foundation platform 10 planes, hoisted in position measures inner core anchor mark cun position in order, marks on each base plate and perforate.Welding shell bottom plate 7 weld afterwards maximum and has heaved distortion and can not surpass 2.5cm, and performed shell bottom plate 7 vacuum leak tests.It is substantial that space under the shell bottom plate 7 adopts expanding cement to fill up with pressure grouting, do not have the phenomenon of coming to nothing on inspection, and it is intact to fit, and confirms after qualified each grout hole sealing is tight.
3. shell 12 is installed, and at first marks shell 12 excircle dimension positions on shell bottom plate 7, welded and installed shell 12 top first lap wallboards, the centering levelling, and packing 16 is set at the wallboard inwall, packing 16 is connected by the channel-section steel segmentation, and connect with two jack 15 and to hold out against, hold round wallboard with anti-deforming.In the first lap top of panels shell crown 2 is installed.Mast centre circle 17 places apart from outer casing inner wall 400mm are provided with one group high 3.2m mast 14 temporarily, evenly distribute and support fixation in addition, be close to evenly one group of gusset 18 of welding of packing 16 tops, establish hanger on the packing 16, upwards promote the first lap wallboard to base surface 0.3m by hanger on the packing 16 and suspender 13, be placed on some temporary supports.Should guarantee during lifting that each force bearing point is stressed evenly, promote simultaneously and should stop, checking during to certain altitude.Then by the identical method welded and installed shell 12 tops second circle wallboard, promote the first lap wallboard, with the second circle wallboard circumferential weld group to, welding, subsequently according to the method described above, the wallboard of package shell 12 remainders successively from top to bottom, wherein foot one circle wallboard is reserved one and is not adorned, the transport channel of installing as inner core 1.Last shell 12 and shell bottom plate 7 welding.
4. inner core 1 is installed, and at first welds inner core 1 top first lap wallboard, the centering levelling, and packing 16 is set at the wallboard inwall, packing 16 is connected by the channel-section steel segmentation, and holds out against with 15 connections of two jack, holds round wallboard with anti-deforming.The compression ring skeleton and the umbrella shape plate of inner core crown 2 are installed then.Utilize mast 14 as the lifting point, stiffening plate 19 is established in weldering on inner core 1 outer wall, establishes hanger on the stiffening plate 19, upwards promotes inner core 1 first lap wallboard by hanger on the stiffening plate 19 and suspender 13.Post-order process is identical with the welded and installed method of above-mentioned 3. shell 12 wallboards.
5. after inner core 1 welded and installed is finished, promote whole inner core, technology is laid concrete foundation layer 9, insulating brick 8, equal pressing plate 6 routinely, and material is entered by shell 12 preformed holes.
6. at equal pressing plate 6 upper berth water-proofing materials and interior tube end plate 5.
7. put down inner core 1, with interior tube end plate 8 welding.
8. pipe arrangement, mounted valve and instrument.
9. the filled heat insulating material layer 4 between shell 12 and the inner core 1.
In addition, the method for improving of shell wallboard, inner core wallboard also can be the method for hydraulic lifting, specifically can adopt jumbo high pressure oil pump and corresponding hydraulic control valve member, make withstand on the shell 12 inwall packings 16 and inner core 1 outer wall stiffening plate 19 on the hydraulic jack fore and aft motion, thereby drive the shell wallboard, the inner core wallboard promotes.The installation of described shell crown 2, inner core crown 3 also can be installed after a circle is finished with the wainscot welded and installed.Preferably after the second circle wallboard welded and installed finishes, shell crown 2, inner core crown 3 are installed.
Claims (6)
1. the cryogenic liquid tank manufacture method comprises that shell (12) is installed and inner core (1) is installed, and it is characterized in that:
1) carrying out shell (12) earlier installs, installation method is: build foundation platform (10) and shell bottom plate (7) laying by prior art, welded and installed shell (12) top first lap wallboard then, its inwall holds round with anti-deforming with packing (16), in the first lap top of panels shell crown (2) is installed, above-mentioned first lap wallboard is promoted, by the same procedure welded and installed second circle wallboard, with the first lap wallboard and the second circle wallboard girth welding, again the first lap wallboard is promoted with the second circle wallboard, welded and installed the 3rd circle wallboard, the rest may be inferred, and the shell wallboard of welded and installed remainder successively from top to bottom is until the required height of shell (12), wherein foot one circle wallboard is reserved one and is not adorned, at last with shell (12) bottom and shell bottom plate (7) welding;
2) inner tube installation, installation method is: the welded and installed and above-mentioned 1 of inner core crown (3) and inner core (1) wallboard) the welded and installed method of shell crown (2) and shell (12) wallboard is identical, after inner core (1) welded and installed is finished, promote whole inner barrel, carry out concrete foundation layer (9), insulating brick (8), all layings of pressing plate (6), interior tube end plate (5) by prior art then, after laying is finished inner core (1) bottom and interior tube end plate (5) are welded;
3) carry out pipe arrangement, mounted valve and instrument after inner core (1), shell (12) installation;
4) filled heat insulating material layer (4) between shell and inner core at last.
2. low-temperature liquid storage tank making method according to claim 1, the method for improving that it is characterized in that the shell wallboard is: be close to packing (16) top welding gusset (18) at casing wall plate inwall, locate to be provided with one group of mast (14) at mast centre circle (17), upwards promote by hanger on the packing (16) and suspender (13).
3. cryogenic liquid tank manufacture method according to claim 1, the method for improving that it is characterized in that the inner core wallboard is: inner core (1) outer wall is provided with stiffening plate (19), locate to be provided with one group of mast (14) at mast centre circle (17), upwards promote by hanger on the stiffening plate (20) and suspender (13).
4. cryogenic liquid tank manufacture method according to claim 1, the method for improving that it is characterized in that shell wallboard, inner core wallboard also can be the method for hydraulic lifting, specifically can adopt jumbo high pressure oil pump and corresponding hydraulic control valve member, make to withstand on shell (12) the inwall packing (16) and the hydraulic jack fore and aft motion on inner core (1) the outer wall stiffening plate (19), thereby drive shell wallboard, the lifting of inner core wallboard.
5. cryogenic liquid tank manufacture method according to claim 1 is characterized in that described packing (16) is connected by the channel-section steel segmentation, and holds out against connection by two or two above jack (15).
6. cryogenic liquid tank manufacture method according to claim 1 is characterized in that shell crown (2), inner core crown (3) can install after a circle or a circle are finished with the wainscot welded and installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310108640 CN1255645C (en) | 2003-11-17 | 2003-11-17 | Manufacturing method of low-temperature liquid storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310108640 CN1255645C (en) | 2003-11-17 | 2003-11-17 | Manufacturing method of low-temperature liquid storage tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1544843A CN1544843A (en) | 2004-11-10 |
| CN1255645C true CN1255645C (en) | 2006-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200310108640 Expired - Fee Related CN1255645C (en) | 2003-11-17 | 2003-11-17 | Manufacturing method of low-temperature liquid storage tank |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8603375B2 (en) * | 2007-06-05 | 2013-12-10 | Chicago Bridge & Iron Company | Method of constructing a storage tank for cryogenic liquids |
| CN102792084B (en) * | 2010-03-17 | 2014-11-26 | 气体产品与化学公司 | Cryogenic storage tank |
| EP2466187A1 (en) * | 2010-12-16 | 2012-06-20 | Air Products And Chemicals, Inc. | A gas storage container |
| CN105983759B (en) * | 2015-01-30 | 2018-10-16 | 五冶集团上海有限公司 | Steel feed bin assembling and welding method under high humidity environment |
| CN105546337B (en) * | 2016-01-20 | 2018-01-16 | 开封空分集团有限公司 | A kind of cryogenic tank fluid pipeline cold insulation structure and method |
| CN107263025B (en) * | 2017-06-08 | 2019-03-08 | 中国化学工程第十一建设有限公司 | A kind of manufacture craft of circular cylinder body non-standard equipment |
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2003
- 2003-11-17 CN CN 200310108640 patent/CN1255645C/en not_active Expired - Fee Related
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| CN1544843A (en) | 2004-11-10 |
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Owner name: WEN JIAN-FANG Free format text: FORMER OWNER: LV JIANQUN Effective date: 20060407 |
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Effective date of registration: 20060407 Address after: 302, room 6, unit 548, Hefangjie Street 310022, Shangcheng District, Zhejiang, Hangzhou Patentee after: Wen Jianfang Address before: 310023 Forestry Research Institute of small and high mountain diocese, Zhejiang, Hangzhou Patentee before: Lv Jianqun |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hangzhou surplus container Engineering Co., Ltd. Assignor: Wen Jianfang Contract fulfillment period: 2009.7.10 to 2015.7.9 contract change Contract record no.: 2009330002192 Denomination of invention: Manufacturing method of low-temperature liquid storage tank Granted publication date: 20060510 License type: Exclusive license Record date: 2009.8.27 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.7.10 TO 2015.7.9; CHANGE OF CONTRACT Name of requester: HANGZHOU YINGDA VESSEL ENGINEERING CO., LTD. Effective date: 20090827 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060510 Termination date: 20151117 |
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