CN108994467A - Large-size stainless steel groove tank top layer siding installation method under hot environment - Google Patents

Large-size stainless steel groove tank top layer siding installation method under hot environment Download PDF

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Publication number
CN108994467A
CN108994467A CN201710418812.1A CN201710418812A CN108994467A CN 108994467 A CN108994467 A CN 108994467A CN 201710418812 A CN201710418812 A CN 201710418812A CN 108994467 A CN108994467 A CN 108994467A
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CN
China
Prior art keywords
siding
groove tank
top layer
installation
tank
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Pending
Application number
CN201710418812.1A
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Chinese (zh)
Inventor
廖兴银
唐敏
任鸿
赵洪浩
卢伟
张昊
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MCC5 Group Shanghai Corp Ltd
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MCC5 Group Shanghai Corp Ltd
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Filing date
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Priority to CN201710418812.1A priority Critical patent/CN108994467A/en
Publication of CN108994467A publication Critical patent/CN108994467A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/003Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to controlling of welding distortion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P21/00Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control

Abstract

Large-size stainless steel groove tank top layer siding installation method under a kind of hot environment, groove tank siding uses upside-down construction technique, characterized by the following steps: a, siding preparatory work before installation, b, tank top layer siding is installed, c, installation and promotion groove tank second layer siding, d, installation remaining each layer siding of groove tank.Large-size stainless steel groove tank top layer siding installation method, which has, under hot environment of the invention is directed to high temperature, high humidity, siding under wind sand environment welds feature more longer than usual welding stress release time, groove tank top layer siding construction anti-deformation heavily measures, welding stress delivery mode after the completion of success dashpot tank shell welding procedure, cause welding deformation after avoiding release, the installation quality of groove tank top layer siding is good, pass through the check criteria that U.S.'s ASME standard and Saudi Arabia SABIC standard be combined with each other and be complementary to one another, owner's praise is won, the advantages of having accumulated the installation experience of groove tank top layer siding of relevant petrochemical industry groove tank.

Description

Large-size stainless steel groove tank top layer siding installation method under hot environment
Technical field
The present invention relates to a kind of installations of groove tank top layer siding, specifically, being large-size stainless steel slot under a kind of hot environment Tank deck layer siding installation method.
Background technique
Chinese patent CN104002079A disclosed a kind of stainless steel spherical tank spherical shell component assembling side on August 27th, 2014 Method, including following steps:
The first step places the pushing template on the moulding bed;
Second step places the stainless steel ball ladle bowl plate to be assembled in the pushing template;
Third step places the upper die plate on the stainless steel ball ladle bowl plate;
4th step is fixed the upper die plate, stainless steel ball ladle bowl plate and lower die board clamping using the fixture;
5th step welds the stainless steel ball ladle bowl plate and spherical tank support column in the open area of the upper die plate, complete At assembling.The stainless steel spherical tank spherical shell parts assembling method includes moulding bed, upper die plate, pushes template and fixture, lower die Plate, stainless steel ball ladle bowl plate and upper die plate are successively layed on the moulding bed from the bottom to top and consolidate via the clamp It is scheduled on together.But this dependence molding method of pressuring template will cause the assembled difficulty of groove tank siding under high temperature environment, especially In the assembly of large-size stainless steel groove tank siding, because of its dimensional accuracy for not controlling each piece of groove tank siding, it is not provided with allowing Deviation range, serious person will appear the predicament that stainless steel sink tank shell can not assemble.
Therefore known large-size stainless steel groove tank siding construction there are problems that it is above-mentioned various inconvenient and.
Summary of the invention
The purpose of the present invention is to propose under a kind of safe and reliable hot environment that large-size stainless steel groove tank top layer siding is pacified Dress method.
To achieve the above object, the technical solution of the invention is as follows:
Large-size stainless steel groove tank top layer siding installation method under a kind of hot environment, groove tank siding use upside-down construction technique, Characterized by the following steps:
A, siding preparatory work before installation
Groove tank siding installation site line should be drawn in groove tank substrate before siding installation, along groove tank siding installation site line circumference Every 500~700mm sets a cushion block;Groove tank siding hookup wire is drawn in tank bottom, is kept off in groove tank siding hookup wire two sides spot welding Plate;
B, tank top layer siding is installed
Top layer siding is installed, under the cooperation of crane, successively groove tank top layer siding is lifted in place according to plate-laying, is lifted on one side, The alignment clearance of one side spot welding longitudinal joint, top layer siding should meet design requirement;After top layer siding whole lifting group is to completion, Interior lateral edge weld seam from top to bottom, one block of camber plate of every 500mm or so spot welding, the unfitness of butt joint of camber plate should be met the requirements;Top layer Siding longitudinal joint first welds outside, and welding after the back chipping of inside after other longitudinal joints in addition to the survivor of a murder attempt are all soldered, answers measuring tape to measure top layer Siding perimeter;
C, installation and promotion groove tank second layer siding, comprising the following steps:
(1) after top layer siding and mounting of roof plate, groove tank second layer siding is installed, installation groove tank second layer siding method is the same as installing Groove tank top layer siding simultaneously reserves one of survivor of a murder attempt and does not weld;
(2) second layer siding lift while, in groove tank group to, installation account circle, according to groove tank second layer siding construction party Case requirement, adjusts lifting means, is then lifted out, and promotes second layer siding step by step until top layer siding is made to be higher by lower layer's siding 30 ~50mm;
(3) on the outside of lower layer's siding, mistake rises spot welding postive stop baffle, docks upper and lower level siding;
(4) in order to guarantee upper and lower level siding alignment clearance uniformity, backing plate, backing plate are installed additional between the circumferential weld of upper and lower level siding It should be identical as the alignment clearance of design requirement;
(5) it when upper lower wall panels not equal thickness, should ensure that concordant on the inside of groove tank siding;
(6) hoisting mechanism adjustment ring gap is used, according to gap size, bracket is adjusted one by one, until meeting the requirements;
After the installation of (7) second laminates, packing is fallen and is connect with bottom, method is identical as top layer siding, and longitudinal joint and circumferential weld are soldered Afterwards, it should test by geometric dimension and weldquality of the design requirement to siding;
D, remaining each layer siding of groove tank is installed
Groove tank second layer siding installs third layer siding, the 4th layer after the assay was approved, according to second layer method of plate installation and step Siding, until the installation of the last layer siding terminates.
Large-size stainless steel groove tank top layer siding installation method can also use technology below under hot environment of the invention Measure further realizes.
Method above-mentioned, wherein the spot welding longitudinal joint, reserves one of longitudinal joint not spot welding of installation surplus.
Method above-mentioned, wherein the actual size of the top layer perimeter should be that theoretical size adds the last survivor of a murder attempt to weld contraction Amount adds top pressure ring plate welding contracted quantity and lower part girth welding shrinkage.
Method above-mentioned selects the packing of appropriate size size wherein the packing is the size according to groove tank, 20000m3 storage tank piston ring is quasi- to select No. 28 channel steels segmentations to carry out round as a ball production, and one piece 70 × 60 of the every isolation lm setting of channel steel × The modal circumferential stiffening rib of one 65 × 10mm is arranged along channel steel center for the vertical strengthening ribs of 10mm, and the inspection of arc template is used after molding, Gap is less than 2mm, when installation, is held out against piston ring along reservoir walls with four or three 20T jack, and rise every 2m in tank skin Spot welding promotes block between circle.
Method above-mentioned, wherein the packing is made for several segments with tank internal diameter, each section is connected with into several big sections, greatly Use jack that packing swelling on tank skin, is supported piston ring using jack and reaches enough intensity, and weld gusset between section Guarantee power transmission of the packing to tank body, be segmented after swelling with power transmission gusset and packing is welded on tank skin, cup ring part setting is mentioning Rise the position of frame.
Method above-mentioned, wherein the packing portion has to weldering 2-3 block gusset at the position of hoisting frame, when preventing from being promoted Packing deformation, lift mechanism lifts packing rise tank deck and upper layer siding wall.
Method above-mentioned, wherein the packing is removed again after being soldered 2/3 weld seam of upper layer siding, reinstalls to lower layer's wall On plate, repeated work, until completing whole siding constructions.
Method above-mentioned, wherein circumferential weld group clock synchronization of the circumferential weld in upper and lower level siding, should on the inside of groove tank every 1000mm One piece of rectangular slab of spot welding, to prevent the welding deformation of circumferential weld, from top to bottom, every 500mm left-right dots weld arc panel for longitudinal joint inside.
After adopting the above technical scheme, large-size stainless steel groove tank top layer siding installation method has under hot environment of the invention It has the advantage that
1, feature more longer than usual welding stress release time, welding are welded for the siding under high temperature, high humidity, wind sand environment Technical measures design is tight, and groove tank top layer siding construction anti-deformation heavily measures, success dashpot tank shell welding procedure is completed Welding stress delivery mode afterwards causes welding deformation after avoiding release.
2, the installation quality of groove tank top layer siding is good, passes through U.S.'s ASME standard and mutually ties with Saudi Arabia SABIC standard The check criteria being complementary to one another again is closed, owner's praise has been won, has had accumulated the peace of the groove tank top layer siding of relevant petrochemical industry groove tank Dress experience increases confidence and courage into landification equipment manufacturing.
Detailed description of the invention
Fig. 1 is the stainless steel sink tank shell expanded schematic diagram of the embodiment of the present invention.
Specific embodiment
With reference to embodiments and its attached drawing further explains the present invention.
Embodiment 1
It is the stainless steel sink tank shell expanded schematic diagram of the embodiment of the present invention referring now to Fig. 1, Fig. 1.
Large-size stainless steel groove tank top layer siding installation method, groove tank siding are applied using upside-down method of hull-section construction under hot environment of the invention Work technique, comprising the following steps:
A, siding preparatory work before installation
Groove tank siding installation site line should be drawn in groove tank substrate before siding installation, along groove tank siding installation site line circumference Every 500~700mm sets a cushion block;Tank skin siding hookup wire is drawn in tank bottom, is kept off in tank skin siding hookup wire two sides spot welding Plate;
B, top layer siding is installed
Top layer siding is installed first, under the cooperation of crane, successively siding is lifted in place according to plate-laying, is lifted on one side, on one side Spot welding longitudinal joint (one of longitudinal joint not spot welding for reserving installation surplus).Alignment clearance should meet design requirement.It is complete to this layer of siding After portion's lifting group is to completion, interior lateral edge weld seam from top to bottom, one block of camber plate of every 500mm or so spot welding.Unfitness of butt joint should expire Foot requires.Siding longitudinal joint first welds outside, and welding uses measuring tape after other longitudinal joints in addition to the survivor of a murder attempt are all soldered after the back chipping of inside Measure siding perimeter.The actual size of perimeter should be that theoretical size adds last survivor of a murder attempt's welding contracted quantity, add top top angle Welding contracted quantity and lower part girth welding shrinkage.
C, the installation and promotion of second layer siding
After top layer siding and mounting of roof plate, i.e., mountable second layer siding.The survivor of a murder attempt is not with top layer siding and along with reserving for method Weldering, while second layer siding hanging bag, in tank group to installation account circle.It is required according to scheme, adjusts lifting means, then It is promoted.It is promoted step by step until top layer siding is made to be higher by lower layer 30~50mm of siding, on the outside of lower layer's siding, mistake rises spot welding limit Baffle docks upper and lower level siding.In order to guarantee alignment clearance uniformity, the cushioning plate between circumferential weld, backing plate should be with design It is required that alignment clearance it is identical.When upper lower wall panels not uniform thickness, should ensure that interior sorrowful concordant.With hoisting mechanism adjustment ring gap, Its method is according to gap size, and bracket is adjusted one by one, until meeting the requirements.Circumferential weld group clock synchronization, should be in the every 1000mm in inside One piece of rectangular slab of left and right spot welding, to prevent the welding deformation of circumferential weld, on the inside of longitudinal joint from top to bottom, every 500mm left-right dots welding arc shape Plate.
After the installation of second laminate, packing is fallen and is connect with bottom, method is identical as top layer siding.Longitudinal joint and circumferential weld are soldered Afterwards, it should test by geometric dimension and weldquality of the design requirement to siding;
D, the installation of remaining each layer siding
Two layers of siding after the assay was approved, install third layer, the 4th layer of siding, until the last layer wall with step according to the method described above The installation of plate terminates.
The construction of large-size stainless steel groove tank siding uses upside-down construction under hot environment of the invention, no matter is mentioned using which kind of The form of liter, packing are essential measures, and the promotion of tank deck and upper layer siding must use packing, its main function is reinforced wall The deformation that tank skin occurs by promoting operation is reduced or avoided in the rigidity of plate.Packing is the size according to storage tank, and it is suitable to select The packing of specification size, 20000m3Storage tank piston ring is quasi- to select No. 28 channel steel segmentations to carry out round as a ball production, the every isolation lm setting of channel steel The modal circumferential stiffening rib of one 65 × 10mm is arranged along channel steel center, uses arc after molding for the vertical strengthening ribs of one piece of 70 × 60 × 10mm Shape template inspection, gap is less than 2mm, when installation, is held out against piston ring along reservoir walls with four or three 20T jack, and every Every 2m, spot welding promotes block between tank skin piston ring.
Packing is made for several segments with tank internal diameter, and each section is connected with into several big sections, uses jack packing between big section Swelling supports piston ring using jack and reaches enough intensity on tank skin, and welds gusset to guarantee packing to tank body Power transmission is segmented with power transmission gusset after swelling and packing is welded on tank skin, and cup ring part is preferably disposed on the position of hoisting frame.
Packing portion has to weldering 2-3 block gusset at the position of hoisting frame, and packing deforms when preventing from being promoted, and hoisting mechanism mentions Packing is risen, tank deck and upper layer siding wall are risen.
Packing is removed again after being soldered upper layer siding at least 2/3 weld seam, is reinstalled on lower layer's siding, repeated work, Until completing whole siding constructions.
The present invention has substantive distinguishing features and significant technological progress, under hot environment of the invention of the invention it is large-scale not Become rusty steel tank tank deck layer siding installation method, establishes the installation of groove tank top layer siding, the welding management system of complete set, formulates practical Feasible top layer siding production, welding management measure, work out safe and reliable welding procedure technique, reach seam deformation inspection Mark, passes through the check criteria of Unite States Standard Yu Saudi Arabia SABIC.
Large-size stainless steel groove tank top layer wall under hot environment of the invention under high temperature of the invention, high humidity, wind sand environment Method of plate installation uses in 20,000 cubes of stainless steel groove tank engineerings of Saudi Arabia, and significant effect has been widely recognized.
Above embodiments are used for illustrative purposes only, rather than limitation of the present invention, the technology people in relation to technical field Member, without departing from the spirit and scope of the present invention, can also make various transformation or variation.Therefore, all equivalent Technical solution also should belong to scope of the invention, should be limited by each claim.

Claims (8)

1. large-size stainless steel groove tank top layer siding installation method under a kind of hot environment, groove tank siding uses upside-down construction work Skill, it is characterised in that the following steps are included:
A, siding preparatory work before installation
Groove tank siding installation site line should be drawn in groove tank substrate before siding installation, along groove tank siding installation site line circumference Every 500~700mm sets a cushion block;Groove tank siding hookup wire is drawn in tank bottom, in groove tank siding hookup wire two sides spot welding baffle;
B, tank top layer siding is installed
Top layer siding is installed, under the cooperation of crane, successively groove tank top layer siding is lifted in place according to plate-laying, is lifted on one side, The alignment clearance of one side spot welding longitudinal joint, top layer siding should meet design requirement;After top layer siding whole lifting group is to completion, Interior lateral edge weld seam from top to bottom, one block of camber plate of every 500mm or so spot welding, the unfitness of butt joint of camber plate should be met the requirements;Top layer Siding longitudinal joint first welds outside, and welding after the back chipping of inside after other longitudinal joints in addition to the survivor of a murder attempt are all soldered, answers measuring tape to measure top layer Siding perimeter;
C, installation and promotion groove tank second layer siding, comprising the following steps:
(1) after top layer siding and mounting of roof plate, groove tank second layer siding is installed, installation groove tank second layer siding method is the same as installing Groove tank top layer siding simultaneously reserves one of survivor of a murder attempt and does not weld;
(2) second layer siding lift while, in groove tank group to, installation packing, according to groove tank second layer siding construction party Case requirement, adjusts lifting means, is then lifted out, and promotes the top layer siding and tank deck of tank body step by step, until keeping top layer siding high 30~50mm of lower layer's siding out;
(3) on the outside of lower layer's siding, mistake rises spot welding postive stop baffle, docks upper and lower level siding;
(4) it in order to guarantee upper and lower level siding alignment clearance uniformity, installs backing plate additional between the circumferential weld of upper and lower level siding, pads Plate should be identical as the alignment clearance of design requirement;
(5) it when upper lower wall panels not equal thickness, should ensure that concordant on the inside of groove tank siding;
(6) hoisting mechanism adjustment ring gap is used, according to gap size, bracket is adjusted one by one, until meeting the requirements;
After the installation of (7) second laminates, packing is fallen and is connect with bottom, method is identical as top layer siding, and longitudinal joint and circumferential weld are soldered Afterwards, it should test by geometric dimension and weldquality of the design requirement to siding;
D, remaining each layer siding of groove tank is installed
Groove tank second layer siding installs third layer siding, the 4th layer after the assay was approved, according to second layer method of plate installation and step Siding, until the installation of the last layer siding terminates.
2. large-size stainless steel groove tank top layer siding installation method under hot environment as described in claim 1, which is characterized in that institute Spot welding longitudinal joint is stated, one of longitudinal joint not spot welding of installation surplus is reserved.
3. large-size stainless steel groove tank top layer siding installation method under hot environment as described in claim 1, which is characterized in that institute The actual size for stating top layer perimeter should be that theoretical size adds last survivor of a murder attempt's welding contracted quantity, add top pressure ring plate welding contracted quantity With lower part girth welding shrinkage.
4. large-size stainless steel groove tank top layer siding installation method under hot environment as described in claim 1, which is characterized in that institute Stating packing is the size according to groove tank, selects the packing of appropriate size size, and 20000m3 storage tank piston ring is quasi- to select No. 28 channel steels point The round as a ball production of Duan Jinhang, the vertical strengthening ribs of one piece of 70 × 60 × 10mm are arranged in the every isolation lm of channel steel, along channel steel center setting one The modal circumferential stiffening rib of 65 × 10mm uses the inspection of arc template after molding, gap is less than 2mm, when installation, with four or three 20T Jack holds out against piston ring along reservoir walls, and spot welding promotes block between tank skin piston ring every 2m.
5. large-size stainless steel groove tank top layer siding installation method under hot environment as described in claim 1, which is characterized in that institute It states packing and several segments is made for tank internal diameter, each section is connected with into several big sections, and packing swelling is existed with jack between big section On tank skin, piston ring is supported using jack and reaches enough intensity, and weld gusset to guarantee power transmission of the packing to tank body, it is swollen Next be segmented with power transmission gusset is welded in packing on tank skin, and the position of hoisting frame is arranged in cup ring part.
6. large-size stainless steel groove tank top layer siding installation method under hot environment as described in claim 1, which is characterized in that institute It states packing portion and has to weldering 2-3 block gusset at the position of hoisting frame, packing deforms when preventing from being promoted, and lift mechanism lifts are swollen Circle rises tank deck and upper layer siding wall.
7. large-size stainless steel groove tank top layer siding installation method under hot environment as described in claim 1, which is characterized in that institute It states packing to remove, reinstall on lower layer's siding, repeated work again after being soldered upper layer siding at least 2/3 weld seam, until complete It constructs at whole sidings.
8. large-size stainless steel groove tank top layer siding installation method under hot environment as described in claim 1, which is characterized in that institute Circumferential weld is stated in the circumferential weld group clock synchronization of upper and lower level siding, should on the inside of groove tank one piece of rectangular slab of every 1000mm spot welding, to prevent circumferential weld Welding deformation, on the inside of longitudinal joint from top to bottom, every 500mm left-right dots weld arc panel.
CN201710418812.1A 2017-06-06 2017-06-06 Large-size stainless steel groove tank top layer siding installation method under hot environment Pending CN108994467A (en)

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