CN105627353A - Scribing installation technology for boiler film water-cooled walls - Google Patents
Scribing installation technology for boiler film water-cooled walls Download PDFInfo
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- CN105627353A CN105627353A CN201511008811.7A CN201511008811A CN105627353A CN 105627353 A CN105627353 A CN 105627353A CN 201511008811 A CN201511008811 A CN 201511008811A CN 105627353 A CN105627353 A CN 105627353A
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- water
- water wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M5/00—Casings; Linings; Walls
- F23M5/08—Cooling thereof; Tube walls
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a scribing installation technology for boiler film water-cooled walls. The scribing installation technology includes the following steps that an assembly platform and a temporary support are manufactured; an upper header and the upper water-cooled wall are assembled and welded; the middle water-cooled wall and the upper water-cooled wall are assembled and welded; the upper header water-cooled wall is lifted; the upper header is positioned; a lower header and the lower water-cooled wall are assembled and welded; the lower water-cooled wall and a rigid beam are assembled and welded; the lower header water-cooled wall is lifted; middle water-cooled wall and the lower water-cooled wall are assembled and welded; and other water-cooled walls are assembled, welded and lifted. By means of the scribing installation method for the boiler film water-cooled walls, scribing installation of the water-cooled walls can be achieved, the installation sequence is reasonable and convenient, the work efficiency is improved, and the construction cycle is shortened; a large amount of ground work of a tube bundle is conducted, high-altitude operation is reduced, and potential safety hazards of a project are reduced; and cost is saved.
Description
Technical field
The invention belongs to mechanical field, it is specifically related to a kind of boiler membrane wall scribing mounting process.
Background technology
Along with the development in epoch, boiler becomes the indispensable capital construction facility of social progress. At present, water wall header is first installed in the many employings of boiler membrane wall, then installs the traditional technology construction of water wall tube piecewise, and its lifting is loaded down with trivial details, and installation period is long, and working aloft is many, and labour productivity is low.
Summary of the invention
It is an object of the invention to for above-mentioned deficiency of the prior art, it is provided that a kind of boiler membrane wall scribing mounting process.
The technical scheme of the present invention is:
A kind of boiler membrane wall scribing mounting process, it is characterised in that: comprise the following steps:
(1) assembly platform, temporary support is made: according to the size and dimension of water wall assembly design joist steel assembling platform for making, it is highly 900��1000mm, doing header temporary support (such as Fig. 1) according to the relative position of header and water wall, temporary support and assembly platform spacing are 1000mm;
(2) welding upper collecting chamber and top water wall: header and top water wall are winched to header temporary support with crane, adjustment header is consistent with absolute altitude and the levelness of pipe comb mouth, welds (such as Fig. 1) with top water wall after interim fixing header;
(3) in the middle part of welding with top water wall: with crane, middle water-wall tube row is winched to assembly platform, placements of tiling outside burner hearth upward, checks that single piece of water cold wall pipe arranges physical dimension with steel tape, and do ball-passing test; Nearly upper collecting chamber 800mm place welding two steel plate hangers are arranged at water wall tube, steel plate thickness is determined according to stressing conditions, according to water wall tube comb mouth alignment tolerance size, fin sheet is regulated gap at weld bond place with the weld bond of the long 200��300mm of gas cutting cutting, transverse direction and diagonal-size between pipe row is proofreaded according to design paper, after acceptance(check), multi-disc water wall is welded into full wafer, water wall fin sheet is welded from centre to zygomorphy, adjusting all pipes row weld bond gap is that 2mm(is such as Fig. 2), expire soldered connecing after fixing with argon arc welding spot welding;
(4) upper collecting chamber water wall is lifted: according to the position residing for field assembly platform, upper collecting chamber is carried out in the following order on assembly platform, top water wall, lift after the subassembly ground Combination Welding of middle part water wall: right water wall, rear water wall, front water wall, left water wall (such as Fig. 3), full wafer water wall is checked, after qualified, the absolute altitude position line according to drawing elevation mark buttress bracing struts on water wall, the absolute altitude position line welds the vertical plate of buttress bracing struts, with qin ray examination and adjust all vertical plates on same bar sea line, buttress bracing struts is placed on the medullary ray of vertical plate, welding buttress bracing struts drag hook plate,
(5) upper collecting chamber location: the order that full wafer water wall press Fig. 2 with windlass and tackleblock lifts, and with suspension rod, top water wall header and the big beam nut of boiler frame are connected (such as Fig. 4), look for positive top water wall header, overall boiler steel frame is as the criterion with left column 1m elevation line, draw to drum absolute altitude as benchmark elevation line from left column 1m elevation line with tape measure, draw the center absolute altitude measuring each header with U-shaped water level gauge from benchmark elevation line, measure header spacing and diagonal lines with steel tape, look for after just and fixing by drawing;
(6) welding lower header and bottom water wall: the same step of method (2) and (3);
(7) welding bottom water wall and buttress bracing struts: the same step of method (2) and (3);
(8) lower header water wall is lifted: the same step of method (4);
(9) in the middle part of welding with bottom water wall: lifting bottom water wall docks with middle part water wall, make hook with �� 16mm round steel to be hung on the water wall fin sheet hanger of top by service platform, utilize jack and crowbar adjust the weld bond gap of two water wall assemblies and counterpart partially degree of folding reach welding conditions, platform welds, after treating that bottom water wall docks, remove the interim hanger of water wall, and clean with the polishing of angle grinding machine;
(10) welding, other water wall are lifted: the same step of method (2), (3) and (4), will water wall gap, four sides steel plate welded seal.
The invention has the beneficial effects as follows: can realizing water wall scribing and install, installation order is rationally convenient, it is to increase work efficiency, shortens the construction period; Pipe row's large number of ground operation, reduces high-altitude application, reduces project potential safety hazard; Cost-saving;
(1), this technology achieve sequencing, construct continuously, decrease lifting machine use number of times, reduce cost.
(2), at economic aspect, for 75T fluidized-bed combustion boiler, this technique is applied with according to first installing water wall header, install the traditional technology of water wall tube more piecewise and construct and compare: save 50t mobile crane mechanical one-shift 12 classes, save the amount of money 48000 yuan; Duration shortens 15 days, adds up to 20 people to calculate by project personnel, saves labour cost about 60000 yuan; Assembly platform can dismantle follow-up continuous use, saves materials cost about 18000 yuan; Add up to and save 126000 yuan.
(3), in construction safety, working aloft can be reduced, reduce project potential safety hazard.
(4), in the duration, this engineering method installation order is rationally, it is to increase working efficiency, can shorten the duration. The construction object of Construction Party is realized in advance, ensures production heat and Winter heat supply, there is certain social benefit.
(5), in social benefit, the application of this engineering method effectively improves operating efficiency, shortens the construction period of construction unit, has saved social resource, improves the technical capacity of unit in charge of construction simultaneously, enhances market competitiveness of enterprises.
Accompanying drawing explanation
Fig. 1 is water wall scheme of installation;
Fig. 2 is pipe row weld bond gap schematic diagram;
Fig. 3 is water wall lifting sequence schematic diagram;
Fig. 4 is top water wall scheme of installation.
Embodiment
Below in conjunction with accompanying drawing, the present invention done further disclosure.
Embodiment
A kind of boiler membrane wall scribing mounting process, it is characterised in that: comprise the following steps:
(1) assembly platform, temporary support is made: according to the size and dimension of water wall assembly design joist steel assembling platform for making, it is highly 900��1000mm, doing header temporary support (such as Fig. 1) according to the relative position of header and water wall, temporary support and assembly platform spacing are 1000mm;
(2) welding upper collecting chamber and top water wall: header and top water wall are winched to header temporary support with crane, adjustment header is consistent with absolute altitude and the levelness of pipe comb mouth, welds (such as Fig. 1) with top water wall after interim fixing header;
(3) in the middle part of welding with top water wall: with crane, middle water-wall tube row is winched to assembly platform, placements of tiling outside burner hearth upward, checks that single piece of water cold wall pipe arranges physical dimension with steel tape, and do ball-passing test; Nearly upper collecting chamber 800mm place welding two steel plate hangers are arranged at water wall tube, steel plate thickness is determined according to stressing conditions, according to water wall tube comb mouth alignment tolerance size, fin sheet is regulated gap at weld bond place with the weld bond of the long 200��300mm of gas cutting cutting, transverse direction and diagonal-size between pipe row is proofreaded according to design paper, after acceptance(check), multi-disc water wall is welded into full wafer, water wall fin sheet is welded from centre to zygomorphy, adjusting all pipes row weld bond gap is that 2mm(is such as Fig. 2), expire soldered connecing after fixing with argon arc welding spot welding;
(4) upper collecting chamber water wall is lifted: according to the position residing for field assembly platform, upper collecting chamber is carried out in the following order on assembly platform, top water wall, lift after the subassembly ground Combination Welding of middle part water wall: right water wall, rear water wall, front water wall, left water wall (such as Fig. 3), full wafer water wall is checked, after qualified, the absolute altitude position line according to drawing elevation mark buttress bracing struts on water wall, the absolute altitude position line welds the vertical plate of buttress bracing struts, with qin ray examination and adjust all vertical plates on same bar sea line, buttress bracing struts is placed on the medullary ray of vertical plate, welding buttress bracing struts drag hook plate,
(5) upper collecting chamber location: the order that full wafer water wall press Fig. 2 with windlass and tackleblock lifts, and with suspension rod, top water wall header and the big beam nut of boiler frame are connected (such as Fig. 4), look for positive top water wall header, overall boiler steel frame is as the criterion with left column 1m elevation line, draw to drum absolute altitude as benchmark elevation line from left column 1m elevation line with tape measure, draw the center absolute altitude measuring each header with U-shaped water level gauge from benchmark elevation line, measure header spacing and diagonal lines with steel tape, look for after just and fixing by drawing;
(6) welding lower header and bottom water wall: the same step of method (2) and (3);
(7) welding bottom water wall and buttress bracing struts: the same step of method (2) and (3);
(8) lower header water wall is lifted: the same step of method (4);
(9) in the middle part of welding with bottom water wall: lifting bottom water wall docks with middle part water wall, make hook with �� 16mm round steel to be hung on the water wall fin sheet hanger of top by service platform, utilize jack and crowbar adjust the weld bond gap of two water wall assemblies and counterpart partially degree of folding reach welding conditions, platform welds, after treating that bottom water wall docks, remove the interim hanger of water wall, and clean with the polishing of angle grinding machine;
(10) welding, other water wall are lifted: the same step of method (2), (3) and (4), will water wall gap, four sides steel plate welded seal.
Claims (1)
1. a boiler membrane wall scribing mounting process, it is characterised in that: comprise the following steps:
(1) assembly platform, temporary support is made;
(2) welding upper collecting chamber and top water wall;
(3) in the middle part of welding with top water wall;
(4) upper collecting chamber water wall is lifted;
(5) upper collecting chamber location;
(6) welding lower header and bottom water wall;
(7) welding bottom water wall and buttress bracing struts;
(8) lower header water wall is lifted;
(9) in the middle part of welding with bottom water wall;
(10) welding, other water wall are lifted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511008811.7A CN105627353A (en) | 2015-12-30 | 2015-12-30 | Scribing installation technology for boiler film water-cooled walls |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511008811.7A CN105627353A (en) | 2015-12-30 | 2015-12-30 | Scribing installation technology for boiler film water-cooled walls |
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| CN105627353A true CN105627353A (en) | 2016-06-01 |
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| CN201511008811.7A Pending CN105627353A (en) | 2015-12-30 | 2015-12-30 | Scribing installation technology for boiler film water-cooled walls |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322347A (en) * | 2016-08-22 | 2017-01-11 | 上海二十冶建设有限公司 | Construction method for enabling water-cooling walls of refuse incineration power generation waste heat boiler to integrally penetrate from top |
| CN107720580A (en) * | 2017-10-19 | 2018-02-23 | 福建省第电力建设公司 | A kind of boiler construction water-cooling wall rapid construction hanging apparatus and its method |
| CN109028008A (en) * | 2018-07-18 | 2018-12-18 | 中国电建集团重庆工程有限公司 | Large-scale machine set boiler vertical tube bundle combination construction process |
| CN110788506A (en) * | 2019-12-30 | 2020-02-14 | 福能(贵州)发电有限公司 | Method for preventing deformation of water-cooled wall assembly |
| CN111895436A (en) * | 2020-07-07 | 2020-11-06 | 哈尔滨哈锅锅炉工程技术有限公司 | Tail water-pocket wall flue device for circulating fluidized bed hot water boiler |
| CN113048461A (en) * | 2021-03-29 | 2021-06-29 | 河南省安装集团有限责任公司 | High-altitude assembly and installation device for boiler membrane type water-cooled wall and installation method thereof |
| CN113294805A (en) * | 2021-05-31 | 2021-08-24 | 中冶京诚工程技术有限公司 | Method for installing boiler water-cooled wall |
| CN116642173A (en) * | 2023-06-11 | 2023-08-25 | 甘肃省安装建设集团有限公司 | Method for installing water cooling wall of circulating fluidized bed boiler |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB855596A (en) * | 1956-07-18 | 1960-12-07 | Laurence Byron Hilton | Improvements in or relating to furnace walls |
| CN201844387U (en) * | 2010-08-10 | 2011-05-25 | 上海锅炉厂有限公司 | Supporting and hanging device of external header and hanged pipe |
| CN103453547A (en) * | 2013-09-05 | 2013-12-18 | 哈尔滨锅炉厂有限责任公司 | Different-wall water-cooled wall structure and medium circulating method |
| CN104930491A (en) * | 2015-05-08 | 2015-09-23 | 山东电力建设第一工程公司 | Mounting system and method of internal heating face component of secondary reheat ultra-supercritical tower-type boiler |
| CN105114976A (en) * | 2015-08-19 | 2015-12-02 | 中国能源建设集团天津电力建设有限公司 | Front-back water cooled wall reverse carrying hoisting method for dry bottom hopper section |
-
2015
- 2015-12-30 CN CN201511008811.7A patent/CN105627353A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB855596A (en) * | 1956-07-18 | 1960-12-07 | Laurence Byron Hilton | Improvements in or relating to furnace walls |
| CN201844387U (en) * | 2010-08-10 | 2011-05-25 | 上海锅炉厂有限公司 | Supporting and hanging device of external header and hanged pipe |
| CN103453547A (en) * | 2013-09-05 | 2013-12-18 | 哈尔滨锅炉厂有限责任公司 | Different-wall water-cooled wall structure and medium circulating method |
| CN104930491A (en) * | 2015-05-08 | 2015-09-23 | 山东电力建设第一工程公司 | Mounting system and method of internal heating face component of secondary reheat ultra-supercritical tower-type boiler |
| CN105114976A (en) * | 2015-08-19 | 2015-12-02 | 中国能源建设集团天津电力建设有限公司 | Front-back water cooled wall reverse carrying hoisting method for dry bottom hopper section |
Non-Patent Citations (2)
| Title |
|---|
| 孟祥泽: "《超超临界机组锅炉设备安装》", 30 May 2014, 中国电力出版社 * |
| 张猛: "膜式水冷壁竖装法在锅炉安装中的应用分析", 《煤矿现代化》 * |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106322347A (en) * | 2016-08-22 | 2017-01-11 | 上海二十冶建设有限公司 | Construction method for enabling water-cooling walls of refuse incineration power generation waste heat boiler to integrally penetrate from top |
| CN106322347B (en) * | 2016-08-22 | 2019-01-15 | 上海二十冶建设有限公司 | The construction method of waste incineration and generating electricity waste heat boiler water-cooling wall integral head injection |
| CN107720580A (en) * | 2017-10-19 | 2018-02-23 | 福建省第电力建设公司 | A kind of boiler construction water-cooling wall rapid construction hanging apparatus and its method |
| CN107720580B (en) * | 2017-10-19 | 2023-09-01 | 中国电建集团福建工程有限公司 | Quick construction hoisting device and method for boiler construction water-cooled wall |
| CN109028008A (en) * | 2018-07-18 | 2018-12-18 | 中国电建集团重庆工程有限公司 | Large-scale machine set boiler vertical tube bundle combination construction process |
| CN110788506A (en) * | 2019-12-30 | 2020-02-14 | 福能(贵州)发电有限公司 | Method for preventing deformation of water-cooled wall assembly |
| CN111895436A (en) * | 2020-07-07 | 2020-11-06 | 哈尔滨哈锅锅炉工程技术有限公司 | Tail water-pocket wall flue device for circulating fluidized bed hot water boiler |
| CN113048461A (en) * | 2021-03-29 | 2021-06-29 | 河南省安装集团有限责任公司 | High-altitude assembly and installation device for boiler membrane type water-cooled wall and installation method thereof |
| CN113048461B (en) * | 2021-03-29 | 2023-02-24 | 河南省安装集团有限责任公司 | High-altitude assembling and mounting device for boiler membrane type water-cooled wall and mounting method thereof |
| CN113294805A (en) * | 2021-05-31 | 2021-08-24 | 中冶京诚工程技术有限公司 | Method for installing boiler water-cooled wall |
| CN116642173A (en) * | 2023-06-11 | 2023-08-25 | 甘肃省安装建设集团有限公司 | Method for installing water cooling wall of circulating fluidized bed boiler |
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Application publication date: 20160601 |
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