CN104625447A - Technology for mounting fan-shaped guide tube - Google Patents
Technology for mounting fan-shaped guide tube Download PDFInfo
- Publication number
- CN104625447A CN104625447A CN201410792451.3A CN201410792451A CN104625447A CN 104625447 A CN104625447 A CN 104625447A CN 201410792451 A CN201410792451 A CN 201410792451A CN 104625447 A CN104625447 A CN 104625447A
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- CN
- China
- Prior art keywords
- conduit
- welding
- fan
- casting
- segmentation
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
Abstract
The invention relates to a technology for mounting a fan-shaped guide tube. After subsections of the fan-shaped guide tube are manufactured, erection welding is conducted, then the subsections are coated together, and the subsections are carried on a slipway ultimately. The technology for mounting the fan-shaped guide tube specifically comprises the five steps of platform erecting, criterion setting, hoisting, welding and detecting. The technology for mounting the fan-shaped guide tube has the advantages that it is pointed out that erection welding can be conducted after the subsections are manufactured according to the mounting stage of the guide tube, the subsections are coated together, and the subsections are carried on the slipway ultimately, so that the process antedisplacement is achieved, the production efficiency is greatly improved, the construction period is shortened, and the purpose of quick shipbuilding is achieved.
Description
Technical field
The present invention relates to a kind of fan-shaped conduit mounting process, be that operation moves forward by one specifically, improve production efficiency greatly, and shortening production cycle, reach the fan-shaped conduit mounting process of the object of quick shipbuilding.
Background technology
Fan-shaped conduit is the one of Ship Energy Saving Device, and current environmental protection type ship all generally uses.Effectively can improve the overall performance of boats and ships, play a role in energy saving.Because the installation accuracy of fan-shaped conduit requires high, shipyard is all just install fan-shaped conduit after boat segmental lift-launch terminates mostly at present.Make berth period lengthen like this, and installation workload is very large again after lift-launch terminates, and does not meet the pattern of Modern Shipbuilding, does not reach the object of quick shipbuilding.
Therefore, research and development are a kind of to move forward operation, improves production efficiency greatly, and shortening production cycle, and the fan-shaped conduit mounting process reaching the object of quick shipbuilding is imperative.Through retrieval related documents, do not find the same or analogous technical scheme with the present invention.
Summary of the invention
The erection stage that the technical problem to be solved in the present invention is to provide a kind of fan-shaped conduit gets final product erecting and welding after sectional making completion, to complete application together with segmentation, finally carry at building berth, operation is moved forward, improve production efficiency greatly, and shortening production cycle, reach the fan-shaped conduit mounting process of the object of quick shipbuilding.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of fan-shaped conduit mounting process, and its innovative point is: described fan-shaped conduit carries out erecting and welding after sectional making completion, then to complete application together with segmentation, finally carries at building berth.
Further, described fan-shaped conduit mounting process concrete steps are as follows:
(1) set for this platform: set for this platform, ensure platform unevenness≤4mm, then segmentation to be winched to above platform and to keep level;
(2) benchmark is determined: day-mark bar on platform, with the axis of stern tube shaft in segmentation for benchmark draws catheter center's line on the ground, and draw conduit end diameter with this catheter center's line on the ground for benchmark and then determine the radial level position of conduit small end, mark for benchmark is drawn on mark post the distance that conduit small end protrudes upward the end face of stern tube shaft steel-casting with the end face of stern tube shaft steel-casting, and then determine the height and position of conduit small end;
(3) lift: adopt lifting appliance lifting conduit, the large end of conduit is made at lower small end upper during lifting, the conduit small end that the catheter center's line drawn on the ground in step 2, conduit end diameter and mark post mark protrudes upward the distance of the end face of stern tube shaft steel-casting as benchmark, adopt laser ranging, conduit is lifted put in place, and support with angle steel fixing; After conduit support is fixing, the distance of detected catheter each stator blade root and segmentation stern tube shaft steel-casting junction and the distance of conduit large end end face upper hull welding support and hull junction also carry out surplus cutting;
(4) weld: the weld seam that mutually pass through of the Hull Welding support on conduit large end face with hull junction and each stator blade root of conduit and segmentation stern tube shaft steel-casting junction is welded and fixed;
(5) detect: carry out ultrasonic inspection detection and withstand voltage pressure testing to the weld of conduit, the pressure of withstand voltage test is set to 0.2bar, keeps 30 minutes.
Further, when welding in described step 4, first carry out parcel preheating to conduit each stator blade root and the distance of segmentation stern tube shaft steel-casting junction and the weld seam band of conduit large end end face upper hull welding support and hull junction, preheat temperature is 200 DEG C-250 DEG C; Then multi-pass welding, interlayer temperature is not less than 200 DEG C, and by two welder's symmetrical weldings during welding, welding line joint interlocks, and two ends cornerite welds, and then it is concentrated to reduce stress; After finally having welded, local heat is carried out to steel-casting weld seam region flame, reaches local stress believing, clear up and splashing of polishing.
Further, the number of plies of described multi-layer multi-pass welding reaches 14-18 layer.
The invention has the advantages that:
(1) fan-shaped conduit mounting process of the present invention, point out that the erection stage of fan-shaped conduit gets final product erecting and welding after sectional making completion, to complete application together with segmentation, finally carry at building berth, operation not only moves forward by this, improve production efficiency greatly, and shortening production cycle, reach the object of quick shipbuilding;
(2) fan-shaped conduit mounting process of the present invention be specifically divided into set for this platform, determine benchmark, lifting, welding and detect five steps, when wherein determining benchmark, the end face being accurately benchmark and stern tube shaft steel-casting by the axis of stern tube shaft in segmentation is benchmark, determine that catheter center's line, conduit end diameter and conduit small end stretch out the distance of the end face of stern tube shaft steel-casting, this process is simple, ensure that the precision that conduit lifts, improve the lifting efficiency of conduit.；
(3), when welding in fan-shaped conduit mounting process of the present invention, first butt welded seam band carries out parcel preheating, and carries out multi-layer multi-pass welding, improves quality and the welding precision of welding.
Accompanying drawing explanation
Fig. 1 is the structural representation that the fan-shaped conduit of the present invention is arranged in segmentation.
Fig. 2 is the structural representation that the fan-shaped conduit of the present invention is connected with stern tube shaft steel-casting end face.
Detailed description of the invention
As depicted in figs. 1 and 2, as depicted in figs. 1 and 2, the invention discloses a kind of fan-shaped conduit 1 mounting process, this fan-shaped conduit 1 carries out erecting and welding after segmentation 2 makes completion, then to complete application together with segmentation 2, finally carries at building berth.
Above-mentioned fan-shaped conduit 1 mounting process concrete steps are as follows:
The first step, sets for this platform 3: set for this platform 3, ensures platform 3 unevenness≤4mm, then segmentation 2 to be winched to above platform 3 and to keep level;
Second step, determine benchmark: day-mark bar on platen 3, catheter center's line 5 is drawn on the ground for benchmark with the axis 4 of stern tube shaft in segmentation 2, and be that benchmark draws conduit small end a radius r on the ground and then determines the radial level position of conduit small end a with this catheter center's line 5, for benchmark is drawn in, mark post marks conduit small end a with the end face c of stern tube shaft steel-casting 6 and protrude upward the distance h of the end face c of stern tube shaft steel-casting 6 and then determine the height and position of conduit small end a;
3rd step, lifting: adopt lifting appliance lifting conduit 1, the small end a of conduit 1 is made at upper large end b upper during lifting, the conduit small end a that the radius r of the catheter center's line 5 drawn on the ground in second step, conduit small end a and mark post mark protrudes upward the distance h of the end face c of stern tube shaft steel-casting 6 as benchmark, adopt laser ranging, conduit 1 is lifted put in place, and support with angle steel fixing; After conduit 1 supports and fixes, the distance of detected catheter 1 each stator 8 blade root and segmentation 2 stern tube shaft steel-casting 6 junction and conduit 1 are held the distance of b end face upper hull welding support 7 and hull junction greatly and are carried out surplus cutting;
4th step, welding: the weld seam that mutually pass through of the Hull Welding support 7 on conduit 1 large end face with hull junction and conduit 1 each stator 8 blade root and segmentation 2 stern tube shaft steel-casting 6 junction is welded and fixed; First hold the weld seam band of end face upper hull welding support 7 and hull junction to carry out parcel preheating greatly to the distance of conduit 1 each stator 8 blade root and segmentation 2 stern tube shaft steel-casting 6 junction and conduit 1 during welding, preheat temperature is 200 DEG C-250 DEG C; Then multi-pass welding, the number of plies reaches 14-18 layer, and interlayer temperature is not less than 200 DEG C, and by two welder's symmetrical weldings during welding, welding line joint interlocks, and two ends cornerite welds, and then it is concentrated to reduce stress; After finally having welded, butt welded seam region flame carries out local heat, reaches local stress believing, clears up and splashing of polishing;
5th step, detects: carry out ultrasonic inspection detection and withstand voltage pressure testing to the weld of conduit 1, the pressure of withstand voltage test is set to 0.2bar, keeps 30 minutes.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. a fan-shaped conduit mounting process, is characterized in that: described fan-shaped conduit carries out erecting and welding after sectional making completion, then to complete application together with segmentation, finally carries at building berth.
2. fan-shaped conduit mounting process according to claim 1, is characterized in that: described fan-shaped conduit mounting process concrete steps are as follows:
Set for this platform: set for this platform, ensure platform unevenness≤4mm, then segmentation to be winched to above platform and to keep level;
Determine benchmark: day-mark bar on platform, with the axis of stern tube shaft in segmentation for benchmark draws catheter center's line on the ground, and draw conduit end diameter with this catheter center's line on the ground for benchmark and then determine the radial level position of conduit small end, mark for benchmark is drawn on mark post the distance that conduit small end protrudes upward the end face of stern tube shaft steel-casting with the end face of stern tube shaft steel-casting, and then determine the height and position of conduit small end;
Lifting: adopt lifting appliance lifting conduit, the large end of conduit is made at lower small end upper during lifting, the conduit small end that the catheter center's line drawn on the ground in step 2, conduit end diameter and mark post mark protrudes upward the distance of the end face of stern tube shaft steel-casting as benchmark, adopt laser ranging, conduit is lifted put in place, and support with angle steel fixing; After conduit support is fixing, the distance of detected catheter each stator blade root and segmentation stern tube shaft steel-casting junction and the distance of conduit large end end face upper hull welding support and hull junction also carry out surplus cutting;
Welding: the weld seam that mutually pass through of the Hull Welding support on conduit large end face with hull junction and each stator blade root of conduit and segmentation stern tube shaft steel-casting junction is welded and fixed;
Detect: carry out ultrasonic inspection detection and withstand voltage pressure testing to the weld of conduit, the pressure of withstand voltage test is set to 0.2bar, keeps 30 minutes.
3. fan-shaped conduit mounting process according to claim 2, it is characterized in that: when welding in described step 4, first carry out parcel preheating to conduit each stator blade root and the distance of segmentation stern tube shaft steel-casting junction and the weld seam band of conduit large end end face upper hull welding support and hull junction, preheat temperature is 200 DEG C-250 DEG C; Then multi-pass welding, interlayer temperature is not less than 200 DEG C, and by two welder's symmetrical weldings during welding, welding line joint interlocks, and two ends cornerite welds, and then it is concentrated to reduce stress; After finally having welded, local heat is carried out to steel-casting weld seam region flame, reaches local stress believing, clear up and splashing of polishing.
4. shape conduit mounting process according to claim 3, is characterized in that: the number of plies of described multi-layer multi-pass welding reaches 14-18 layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792451.3A CN104625447B (en) | 2014-12-19 | 2014-12-19 | A kind of fan-shaped conduit mounting process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792451.3A CN104625447B (en) | 2014-12-19 | 2014-12-19 | A kind of fan-shaped conduit mounting process |
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| Publication Number | Publication Date |
|---|---|
| CN104625447A true CN104625447A (en) | 2015-05-20 |
| CN104625447B CN104625447B (en) | 2016-08-24 |
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| CN201410792451.3A Active CN104625447B (en) | 2014-12-19 | 2014-12-19 | A kind of fan-shaped conduit mounting process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877686A (en) * | 2019-11-15 | 2020-03-13 | 沪东中华造船(集团)有限公司 | Preassembling and mounting method for ship energy-saving guide pipe |
| CN111268056A (en) * | 2020-03-09 | 2020-06-12 | 招商局重工（江苏）有限公司 | Method for installing guide cover of large ore carrier |
| CN111805116A (en) * | 2020-07-28 | 2020-10-23 | 中国二十二冶集团有限公司 | Method for controlling welding deviation of double-shaft electric furnace cradle assembly |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0540868A1 (en) * | 1991-11-02 | 1993-05-12 | Herbert Prof. Dr.-Ing. Schneekluth | Flow guiding device |
| CN101108648A (en) * | 2007-08-16 | 2008-01-23 | 沪东中华造船(集团)有限公司 | Method for manufacturing watercraft commutation tube |
| CN101214848A (en) * | 2007-12-27 | 2008-07-09 | 广州文冲船厂有限责任公司 | Method for mounting air guide sleeve |
| CN102009322A (en) * | 2010-06-04 | 2011-04-13 | 沪东中华造船(集团)有限公司 | Method for manufacturing connecting type rudder arm flow guide device |
| CN103129701A (en) * | 2011-11-22 | 2013-06-05 | 上海船厂船舶有限公司 | Positioning method of stream guidance cover on segmentation |
| CN103741657A (en) * | 2013-12-27 | 2014-04-23 | 中铁大桥局集团第一工程有限公司 | Construction method of large multifunctional over-water construction platform |
| CN203610881U (en) * | 2013-11-21 | 2014-05-28 | 中船桂江造船有限公司 | Diversion pipe connecting ring tool |
-
2014
- 2014-12-19 CN CN201410792451.3A patent/CN104625447B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0540868A1 (en) * | 1991-11-02 | 1993-05-12 | Herbert Prof. Dr.-Ing. Schneekluth | Flow guiding device |
| CN101108648A (en) * | 2007-08-16 | 2008-01-23 | 沪东中华造船(集团)有限公司 | Method for manufacturing watercraft commutation tube |
| CN101214848A (en) * | 2007-12-27 | 2008-07-09 | 广州文冲船厂有限责任公司 | Method for mounting air guide sleeve |
| CN102009322A (en) * | 2010-06-04 | 2011-04-13 | 沪东中华造船(集团)有限公司 | Method for manufacturing connecting type rudder arm flow guide device |
| CN103129701A (en) * | 2011-11-22 | 2013-06-05 | 上海船厂船舶有限公司 | Positioning method of stream guidance cover on segmentation |
| CN203610881U (en) * | 2013-11-21 | 2014-05-28 | 中船桂江造船有限公司 | Diversion pipe connecting ring tool |
| CN103741657A (en) * | 2013-12-27 | 2014-04-23 | 中铁大桥局集团第一工程有限公司 | Construction method of large multifunctional over-water construction platform |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110877686A (en) * | 2019-11-15 | 2020-03-13 | 沪东中华造船(集团)有限公司 | Preassembling and mounting method for ship energy-saving guide pipe |
| CN111268056A (en) * | 2020-03-09 | 2020-06-12 | 招商局重工（江苏）有限公司 | Method for installing guide cover of large ore carrier |
| CN111805116A (en) * | 2020-07-28 | 2020-10-23 | 中国二十二冶集团有限公司 | Method for controlling welding deviation of double-shaft electric furnace cradle assembly |
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| Publication number | Publication date |
|---|---|
| CN104625447B (en) | 2016-08-24 |
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Effective date of registration: 20200609 Address after: 226500 No.2 Binjiang Road, Changjiang Town, Rugao City, Nantong City, Jiangsu Province Patentee after: Nantong Huachuan transportation equipment Co., Ltd Address before: 226500 petrochemical industry zone, Rugao Port Economic Development Zone, Nantong, Jiangsu, Rugao Patentee before: HUATAI HEAVY INDUSTRY (NANTONG) Co.,Ltd. |
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