CN115106623B - BOP process large storage tank side wall assembling method - Google Patents
BOP process large storage tank side wall assembling method Download PDFInfo
- Publication number
- CN115106623B CN115106623B CN202110295335.0A CN202110295335A CN115106623B CN 115106623 B CN115106623 B CN 115106623B CN 202110295335 A CN202110295335 A CN 202110295335A CN 115106623 B CN115106623 B CN 115106623B
- Authority
- CN
- China
- Prior art keywords
- welding
- storage tank
- ring
- hydraulic
- tank
- Prior art date
- 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.)
- Active
Links
- 238000003860 storage Methods 0.000 title claims abstract description 121
- 238000000034 method Methods 0.000 title claims abstract description 87
- 230000008569 process Effects 0.000 title claims abstract description 49
- 238000003466 welding Methods 0.000 claims abstract description 275
- 238000010276 construction Methods 0.000 claims abstract description 49
- 230000001360 synchronised effect Effects 0.000 claims abstract description 13
- 230000000694 effects Effects 0.000 claims abstract description 5
- 210000001503 joint Anatomy 0.000 claims description 13
- 238000009659 non-destructive testing Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 230000001276 controlling effect Effects 0.000 claims description 9
- 238000007689 inspection Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 238000005498 polishing Methods 0.000 claims description 8
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 6
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 239000010962 carbon steel Substances 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 230000008439 repair process Effects 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 239000011324 bead Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000004048 modification Effects 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 230000002265 prevention Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 30
- 239000007789 gas Substances 0.000 description 11
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/32—Accessories
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/12—Vessels
- B23K2101/125—Cans
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention belongs to an assembling method, and particularly relates to an assembling method for side walls of a large storage tank in a BOP process. It comprises the following steps: 1) Installing an annular operation platform truck of the storage tank; 2) The coaming, the pairing and the longitudinal seam of the first ring of the wallboard under the tank top are welded; 3) Installing a synchronous hydraulic lifting device of the storage tank; 4) Coaming of a second ring of wallboard at the top of the tank; 5) The first ring of wall plates below the tank top are integrally lifted; 6) Assembling and longitudinal seam welding of the second ring of wallboard coamings below the tank top; 7) Girth welding of the first and second circles of wall plates below the tank top; 8) Repeating the steps 4) to 7) until the integral welding of the side wall of the storage tank is completed. The invention has the remarkable effects that: the requirement on talents of advanced welders is effectively reduced, the workload of overhead operation of constructors is reduced, the welding quality is guaranteed while the construction efficiency of the storage tank is improved, the overall working efficiency is improved to 3 times of the existing construction efficiency, and the application of an automatic welding technology in the third-generation nuclear power market is accelerated.
Description
Technical Field
The invention belongs to an assembling method, and particularly relates to an assembling method for side walls of a large storage tank in a BOP process.
Background
The Chinese nuclear power technology represents that the high-end manufacturing of China goes out of the country and goes to the world, and in a long period of time in the future, the construction of the domestic nuclear power station keeps a high-speed and stable development situation, and the construction form is gradually changed to automation and intellectualization.
The BOP process large storage tank (fuel oil storage tank, boric acid storage tank, desalted water storage tank and passive containment cooling auxiliary water tank) is a necessary facility for the nuclear power station. The welding engineering amount for constructing a single storage tank is huge, and a plurality of BOP process large storage tanks are needed in the whole construction period of the nuclear power station. At present, the welding means in the construction of the storage tank for the nuclear power station mainly comprise manual arc welding and manual argon arc welding, and the welding quality, the welding efficiency and the high-skill welder demand of the storage tank are not effectively ensured while the labor intensity of operators is increased in the manual welding mode, so that the development of the automation level of the third-generation nuclear power construction is greatly influenced.
For large tank construction capacity in other engineering fields, semi-automated welding means using welding carts have been developed gradually. The welding engineering quantity of the storage tank wallboard accounts for a large part of the whole welding work, and is mainly divided into welding of a wallboard longitudinal seam and welding of a wallboard circumferential seam, and the existing semi-automatic welding means mainly aims at welding of one welding seam or semi-automatic welding of the storage tank longitudinal seam and the circumferential seam by adopting two sets of different welding trolleys, so that the construction operation flow is complicated. For welding of longitudinal seams of the storage tank, electro-gas welding is mainly adopted in the market, submerged arc welding is also adopted for welding of circumferential seams of the storage tank, welding processes, required equipment, operation flows and the like of the electro-gas welding and the submerged arc welding are different, and the electro-gas welding and the submerged arc welding are switched back and forth in the construction of the 'inverted' storage tank, so that the construction period and the extra workload are greatly increased.
Disclosure of Invention
The invention provides a BOP process large storage tank side wall assembling method, which aims to solve the problems of low welding quality, low welding efficiency and the like caused by manual welding in the construction of the existing BOP process large storage tank for a nuclear power station, and the problems of complex workload, low efficiency and the like caused by different longitudinal and girth welding processes, welding equipment and operation flows of the side wall of the existing storage tank.
The invention is realized in the following way: a BOP process large storage tank side wall assembling method comprises the following steps: 1) Installing an annular operation platform truck of the storage tank; 2) The coaming, the pairing and the longitudinal seam of the first ring of the wallboard under the tank top are welded; 3) Installing a synchronous hydraulic lifting device of the storage tank; 4) Coaming of a second ring of wallboard at the top of the tank; 5) The first ring of wall plates below the tank top are integrally lifted; 6) Assembling and longitudinal seam welding of the second ring of wallboard coamings below the tank top; 7) Girth welding of the first and second circles of wall plates below the tank top; 8) Repeating the steps 4) to 7) until the integral welding of the side wall of the storage tank is completed.
According to the assembly method for the side wall of the large storage tank in the BOP process, the annular operation platform truck of the storage tank can meet the welding requirements of longitudinal seams and circumferential seams of the storage tank, and the provided platform can meet the requirements of personnel and equipment stations for work such as welding seam polishing, nondestructive testing and repairing.
The method for assembling the side wall of the large storage tank in the BOP process comprises the steps of installing the annular construction operation platform vehicle of the storage tank, wherein the annular construction operation platform vehicle of the storage tank comprises an inner annular construction track, an outer annular construction track and an inner and outer operation platform vehicle body assembly; the inner and outer annular construction tracks are arranged by adopting a single track, the inner track is directly paved on the bottom plate of the storage tank, the outer track is required to be additionally provided with a track support to enable the inner track and the outer track to be on the same plane, and the inner and outer operation platform trucks can be used simultaneously after the track is paved; the inner and outer operation platform car body assembly is used for wall plate assembly pairing, adjustment, automatic welding, welding line polishing, nondestructive testing, shooting and personnel and equipment station position during repair; the vertical welding device and the annular welding device carried by the internal and external operation platform truck are MAG automatic welding equipment, so that transverse welding and vertical welding processes required by side wall welding can be simultaneously met, and welding quality and operation efficiency can be ensured; the annular construction operation platform truck of the storage tank is required to be provided with the supporting legs when entering the annular track to carry out welding operation, so that the platform is prevented from tipping over, and the supporting legs are adjusted and recycled to leave the ground when walking.
The assembly method for the side wall of the BOP process large storage tank is characterized in that the inner and outer annular construction tracks mainly comprise a bottom support and a single-side track, wherein the bottom support is formed by integrally spot-welding Q235 material 8# channel steel on a storage tank bottom plate, and the single-side track is formed by welding Q235 material-10 mm multiplied by 100mm steel plates;
The foundation plate for supporting the rail is fixed on the side surface of the tank foundation and the foundation through expansion bolts;
The main structure of the internal and external operation platform truck body assembly comprises a vertical welding device, an annular welding device, an operation platform rack and an operation platform rack; the annular welding device is fixed in the operating platform frame, and the vertical welding device is fixed at the left side of the operating platform;
the annular construction operation platform truck finishes the welding of the longitudinal seam of the upper ring of the wall plate, and the electromagnet is used for attracting and covering the wall plate of the storage tank to prevent the platform from tipping, and the auxiliary supporting wheel of the platform is required to be regulated to act on the cylinder plate of the storage tank when the circumferential seam is welded and walked, so that the tipping prevention effect is achieved;
The MAG automatic welding equipment can realize automatic channel arrangement and welding bead storage and modification of flat welding and vertical welding through parameterization programming of a MAG automatic welding control system.
According to the assembly method for the side wall of the BOP process large storage tank, the coaming and the assembly pair of the first circle of wall plates below the tank top are welded with the longitudinal seam, after the first circle of wall plates are hoisted and the coaming is in place, the adjacent wall plates are assembled and fixed by using the connecting seats of the door plank assembly buckle wall plates, and after all the wall plates are adjusted, the wall plates are fixed by spot welding again; the welding of longitudinal seams of the wall plates of the storage tank follows the sequence of the outside and the inside, and the longitudinal seams of the wall plates of the storage tank are removed before being welded;
The longitudinal seams of the shutter plate assemblies along the wall plates are less than 500mm in interval; the wallboard connecting seat is fixed with the wallboard spot welding seam; the gap between adjacent wall plates after the assembly and the point welding are fixed is smaller than 1mm;
The longitudinal seam welding sequence is that the outside is firstly and then the inside is firstly, but the inside welding at the same position can be performed after the outside welding is finished for a certain time interval, and the whole welding position can be performed after the outside welding is finished without waiting for the whole welding position to be finished, so that the welding efficiency is improved;
The longitudinal seam welding of the wallboard adopts multi-layer multi-channel double-sided welding, the groove form is butt joint 'X', the welding adopts autonomous integrated consumable electrode gas shielded automatic welding (MAG), the welding material is carbon steel solid welding wires with the diameter of 1.2mm, and the shielding gas is 80 percent Ar+20 percent CO 2;
the expansion ring is formed by buckling after correcting the rolling arc of the channel steel, and the installation height is 100mm above the bottom of the wallboard.
According to the method for assembling the side wall of the large storage tank in the BOP process, the synchronous hydraulic lifting device of the storage tank is arranged, the number of the required hydraulic cylinders is determined according to the total lifting amount and the rated bearing capacity of the hydraulic cylinders, the cylinders are arranged at equal intervals in the storage tank, and the arrangement position should avoid the position of the vertical welding seam of the last circle of wall plate; the distance between the hydraulic cylinder and the inner wall of the storage tank is 210mm; the bottom of the oil cylinder is welded and fixed with the bottom plate of the storage tank by a positioning clamping plate, and a buttress support at the top of the oil cylinder adjusts the oil cylinder to be vertically positioned; one end of the lifting pull rod is hinged with the oil cylinder connecting seat, and the other end of the lifting pull rod is welded with the expansion ring through the lifting lug, so that the oil cylinder is connected with the wall plate of the storage tank; one end of each supporting rod is bolted and fixed with a connecting piece at the top of the oil cylinder, the other end of each supporting rod is welded and fixed with a bottom plate of the storage tank, and the two supporting rods are arranged in a front-back included angle of 45 degrees and a left-right included angle of 60 degrees; the oil cylinders are connected after being arranged in place, all oil ways and circuits are checked, whether all connecting pieces are firm or not is checked, and the hydraulic facilities are guaranteed to be in a working state;
The synchronous hydraulic jacking device for the storage tank can be simultaneously or later welded with the assembly of the first round of wall plates below the tank top and the external longitudinal seam, and the next working procedure is not required to be started after the previous working procedure is completely ended;
The hydraulic jacking device is characterized in that 1 main control cabinet controls 2 groups of power supply cabinets, each group of power supply cabinets can control 1-2 hydraulic stations, and each hydraulic station can drive 6 hydraulic cylinders;
the hydraulic jacking device can increase the total rated jacking weight by increasing the number of the jacking cylinders, the rated jacking weight of the jacking device is not less than 200t, the jacking height is not less than 3m, and the jacking speed is 150-200mm/min.
According to the assembly method for the side wall of the BOP process large storage tank, the coaming of the second circle of wallboard is hung on the top of the tank, the second circle of wallboard is attached to the first circle of wallboard after being lifted in place, the distance between the adjacent wallboards is adjusted to be smaller than 1mm, spot welding preliminary fixation is carried out, and the whole second circle of wallboard leaves one adjacent wallboard without spot welding and is used for integral adjustment in the assembly and welding longitudinal seam stage.
According to the assembly method for the side wall of the BOP process large storage tank, the first circle of wall plates below the tank top are integrally lifted, and the whole lifting process is commanded by the hydraulic lifting control cabinet; switching on a power supply of a main control cabinet, controlling the hydraulic pump station to be in an operation state, and controlling all the hydraulic stations to start synchronous operation after checking that the operation pressure of the hydraulic pump station is normal and stable; after the pressure of the hydraulic station cylinder rises to a set value, checking whether all the pull rods are uniformly stressed; after all the parts are normal, the lifting button is started, and the wall plate of the storage tank is lifted under the action of the pulling force of the oil cylinder; in addition, if the lifting height of a certain hydraulic station is found to be too large or too small in the whole lifting process, lifting can be stopped, and the lifting/descending button in the control panel is used for independently operating the hydraulic station; when the lifting is carried out to the 'butt joint' height, the lifting can be stopped in place, all the ball valves of the oil cylinder inlet and outlet and the pump station main valve are closed for pressure maintaining, and the primary lifting is completed at the moment; after the assembly of the next round of wall plates and the welding work of the longitudinal seam are finished, the circumferential seams of the wall plates and the previous round of wall plates are welded, and after all the welding seams are qualified through nondestructive testing, the falling work can be carried out;
The hydraulic lifting control cabinet is provided with a special hydraulic lifting control panel, and is connected with the power cabinet in an aviation plug connection mode, so that the lifting device can be controlled in an intuitive and simple mode;
The maximum working pressure of the hydraulic system is 20MPa, the maximum stroke of the oil cylinder is 3200mm, and the hydraulic system can be lifted in place once;
The hydraulic pump station comprises an oil pump, a motor, a control valve, an oil tank, an oil pipe bracket and the like;
the system automatically performs jacking inspection in the jacking process, wherein the inspection mode is that the jacking process is automatically ended every 1 minute after jacking begins to prompt inspection, and if no condition exists, a jacking button can be started to continue the jacking process;
the lifting device falls back, the power supply of the power cabinet is turned off before falling, all the oil cylinder stop valves and the pump station master valve are turned on, and finally the falling button of the control panel of the control cabinet is pressed.
The assembly method of the side wall of the BOP process large storage tank comprises the steps of assembling and longitudinal seam welding of the coaming of the second circle of wall plates below the tank top, adjusting the positions of the second circle of wall plates after the first circle of wall plates below the tank top are integrally lifted, enabling the distance between adjacent wall plates to be smaller than 1mm, and then assembling and fixing the wall plates by using a door plate assembly to buckle a wall plate connecting seat; the longitudinal seam welding of the second ring of wall plates below the tank top is consistent with the longitudinal seam welding flow of the first ring of wall plates, and the description is omitted;
the longitudinal seams of the shutter plate assemblies along the wall plates are less than 500mm in interval; the wallboard connecting seat is fixed with the wallboard spot welding seam.
The method for assembling the side wall of the large storage tank by using the BOP process comprises the steps of girth welding of the first ring of wall plates and the second ring of wall plates below the tank top, controlling the hydraulic jacking device to adjust the right butt joint of the first ring of wall plates below the tank top and the second ring of wall plates below the tank top after the longitudinal seam welding of the first ring of wall plates and the second ring of wall plates below the tank top are completed; firstly, welding an external circular seam, then welding an internal circular seam, and carrying MAG automatic welding equipment on each single-side circular seam by adopting four annular construction operation platform trucks, wherein the MAG automatic welding equipment is symmetrically and uniformly distributed along the circumference of the tank wall in the same direction;
the gap between the first and second circles of wall plates below the tank top after butt joint is smaller than 2mm;
the girth welding sequence is that the outside is firstly and then the inside is firstly, but the inside welding at the same position can be carried out after the outside welding is finished for a certain time interval, and the whole welding position can be carried out after the outside welding is finished without waiting for the whole welding position, so that the welding efficiency is improved;
The circular seam welding of the first and second ring of wall plates below the tank top adopts multilayer multi-pass double-sided welding, the groove is in a butt joint K shape, the groove is formed in the first ring of wall plate below the tank top, the groove is not formed in the second ring of wall plate below the tank top, and the circular seam groove needs to be cleaned before welding; the welding adopts autonomous integrated consumable electrode gas shielded automatic welding (MAG), the welding material is carbon steel solid welding wire with the diameter of 1.2mm, the shielding gas is 80 percent Ar+20 percent CO 2,
And repeating the assembly of the next-ring-layer wall plate, the integral lifting of the upper-ring-layer wall plate, the longitudinal seam welding of the next-ring-layer wall plate and the welding of the upper-ring-layer annular seam and the lower-ring-layer annular seam in sequence until the integral welding of the side wall of the storage tank is completed.
The invention has the remarkable effects that: compared with the prior art, the BOP process large storage tank side wall assembling method provided by the invention has the advantages that the requirements on talents of advanced welders are effectively reduced, the workload of high-altitude operation of constructors is reduced, the welding quality is ensured while the storage tank construction efficiency is improved, the overall working efficiency is improved to 3 times of the existing construction efficiency, and the application of an automatic welding technology in the third-generation nuclear power market is accelerated.
Drawings
FIG. 1 is a schematic view of a welded tank wall panel of an annular construction work platform truck;
FIG. 2 is a front view of a looped construction work platform truck track;
FIG. 3 is a top view of an endless construction work platform truck track;
FIG. 4 is a schematic diagram of hydraulic jack cylinder distribution;
FIG. 5 is a schematic diagram of cylinder and panel connections;
FIG. 6 is a schematic view of a fixed wall panel of the closure panel assembly;
FIG. 7 is a schematic view of a panel fillet weld groove form;
Fig. 8 is a schematic view of a wall plate girth weld groove form.
Wherein 1-storage tank wallboard, 2-track, 3-annular construction operation platform truck, 4-storage tank bottom plate, 5-foundation, 6-storage tank foundation, 7-horse pier, 8-hydraulic cylinder, 9-power cabinet, 10-door plank assembly, 11-expansion ring, 21-inner track, 22-outer track, 23-track support, 31-outer annular construction operation platform truck, 32-inner annular construction operation platform truck, 33-support leg, 81-stretching lifting rod, 82-positioning clamping plate, 83-lifting pull rod, 84-buttress support, 101-U-shaped clamp, 102-door plank, 103-connecting seat, 104-conical pin,
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention.
A BOP process large storage tank side wall assembling method comprises the following steps: 1) Installing an annular operation platform truck of the storage tank; 2) The coaming, the pairing and the longitudinal seam of the first ring of the wallboard under the tank top are welded; 3) Installing a synchronous hydraulic lifting device of the storage tank; 4) Coaming of a second ring of wallboard at the top of the tank; 5) The first ring of wall plates below the tank top are integrally lifted; 6) Assembling and longitudinal seam welding of the second ring of wallboard coamings below the tank top; 7) Girth welding of the first and second circles of wall plates below the tank top; 8) Repeating the steps 4) to 7) until the integral welding of the side wall of the storage tank is completed.
The method for assembling the side wall of the BOP process large storage tank is characterized in that: the annular operation platform trolley for the storage tank can meet the welding requirements of longitudinal seams and circumferential seams of the storage tank, and the provided platform can meet the requirements of personnel and equipment stations for working such as welding seam polishing, nondestructive testing, repairing and the like;
The welding seam polishing mode adopts a grinder for polishing; the nondestructive testing is carried out according to ASME standard to carry out nondestructive testing and physicochemical testing; and the weld joint repair adopts manual arc welding and manual argon arc welding.
The method for assembling the side wall of the BOP process large storage tank is characterized in that: installing an annular construction operation platform vehicle of the storage tank, wherein the annular construction operation platform vehicle of the storage tank comprises an inner annular construction track, an outer annular construction track and an inner annular construction platform vehicle body assembly; the inner and outer annular construction tracks are arranged by adopting a single track, the inner track is directly paved on the bottom plate of the storage tank, the outer track is required to be additionally provided with a track support to enable the inner track and the outer track to be on the same plane, and the inner and outer operation platform trucks can be used simultaneously after the track is paved; the inner and outer operation platform car body assembly is used for wall plate assembly pairing, adjustment, automatic welding, welding line polishing, nondestructive testing, shooting and personnel and equipment station position during repair; the vertical welding device and the annular welding device carried by the internal and external operation platform truck are MAG automatic welding equipment, so that transverse welding and vertical welding processes required by side wall welding can be simultaneously met, and welding quality and operation efficiency can be ensured; the annular construction operation platform truck of the storage tank needs to be provided with the supporting legs when entering the annular track to carry out welding operation, so that the platform is prevented from tipping, and the supporting legs are adjusted and recycled to leave the ground when walking;
The inner and outer annular construction tracks mainly comprise a bottom support and a single-side track, wherein the bottom support is formed by integrally spot-welding Q235 material 8# channel steel on a storage tank bottom plate, and the single-side track is formed by welding Q235 material-10 mm multiplied by 100mm steel plates;
The foundation plate for supporting the rail is fixed on the side surface of the tank foundation and the foundation through expansion bolts;
The main structure of the internal and external operation platform truck body assembly comprises a vertical welding device, an annular welding device, an operation platform rack and an operation platform rack; the annular welding device is fixed in the operating platform frame, and the vertical welding device is fixed at the left side of the operating platform;
the annular construction operation platform truck finishes the welding of the longitudinal seam of the upper ring of the wall plate, and the electromagnet is used for attracting and covering the wall plate of the storage tank to prevent the platform from tipping, and the auxiliary supporting wheel of the platform is required to be regulated to act on the cylinder plate of the storage tank when the circumferential seam is welded and walked, so that the tipping prevention effect is achieved;
The MAG automatic welding equipment can realize automatic channel arrangement and welding bead storage and modification of flat welding and vertical welding through parameterization programming of a MAG automatic welding control system.
The method for assembling the side wall of the BOP process large storage tank is characterized in that: the coaming, the pairing and the longitudinal seam welding of the first circle of the wallboard under the tank top are carried out, after the first circle of the wallboard is hoisted and the coaming is in place, the adjacent wallboard is assembled and fixed by using a connector of the wallboard of the door plank assembly buckle, and after all the wallboards are adjusted, the wallboards are welded and fixed again by spot welding; the welding of longitudinal seams of the wall plates of the storage tank follows the sequence of the outside and the inside, and the longitudinal seams of the wall plates of the storage tank are removed before being welded;
The longitudinal seams of the shutter plate assemblies along the wall plates are less than 500mm in interval; the wallboard connecting seat is fixed with the wallboard spot welding seam; the gap between adjacent wall plates after the assembly and the point welding are fixed is smaller than 1mm;
The longitudinal seam welding sequence is that the outside is firstly and then the inside is firstly, but the inside welding at the same position can be performed after the outside welding is finished for a certain time interval, and the whole welding position can be performed after the outside welding is finished without waiting for the whole welding position to be finished, so that the welding efficiency is improved;
The longitudinal seam welding of the wallboard adopts multi-layer multi-channel double-sided welding, the groove form is butt joint 'X', the welding adopts autonomous integrated consumable electrode gas shielded automatic welding (MAG), the welding material is carbon steel solid welding wires with the diameter of 1.2mm, and the shielding gas is 80 percent Ar+20 percent CO 2;
the expansion ring is formed by buckling after correcting the rolling arc of the channel steel, and the installation height is 100mm above the bottom of the wallboard.
The method for assembling the side wall of the BOP process large storage tank is characterized in that: the method comprises the steps of installing a synchronous hydraulic lifting device of a storage tank, determining the number of required hydraulic cylinders according to the total lifting amount and the rated bearing capacity of the hydraulic cylinders, arranging the cylinders in the storage tank at equal intervals, and avoiding the position of a vertical welding seam of a wall plate of the last circle at the arrangement position; the distance between the hydraulic cylinder and the inner wall of the storage tank is 210mm; the bottom of the oil cylinder is welded and fixed with the bottom plate of the storage tank by a positioning clamping plate, and a buttress support at the top of the oil cylinder adjusts the oil cylinder to be vertically positioned; one end of the lifting pull rod is hinged with the oil cylinder connecting seat, and the other end of the lifting pull rod is welded with the expansion ring through the lifting lug, so that the oil cylinder is connected with the wall plate of the storage tank; one end of each supporting rod is bolted and fixed with a connecting piece at the top of the oil cylinder, the other end of each supporting rod is welded and fixed with a bottom plate of the storage tank, and the two supporting rods are arranged in a front-back included angle of 45 degrees and a left-right included angle of 60 degrees; the oil cylinders are connected after being arranged in place, all oil ways and circuits are checked, whether all connecting pieces are firm or not is checked, and the hydraulic facilities are guaranteed to be in a working state;
The synchronous hydraulic jacking device for the storage tank can be simultaneously or later welded with the assembly of the first round of wall plates below the tank top and the external longitudinal seam, and the next working procedure is not required to be started after the previous working procedure is completely ended;
The hydraulic jacking device is characterized in that 1 main control cabinet controls 2 groups of power supply cabinets, each group of power supply cabinets can control 1-2 hydraulic stations, and each hydraulic station can drive 6 hydraulic cylinders;
the hydraulic jacking device can increase the total rated jacking weight by increasing the number of the jacking cylinders, the rated jacking weight of the jacking device is not less than 200t, the jacking height is not less than 3m, and the jacking speed is 150-200mm/min.
The method for assembling the side wall of the BOP process large storage tank is characterized in that: and the coaming of the second ring of wallboard under the tank top is attached to the first ring of wallboard after being lifted in place, the distance between the adjacent wallboards is adjusted to be smaller than 1mm, spot welding preliminary fixation is carried out, and the whole second ring of wallboard is left with one adjacent wallboard without spot welding for integral adjustment in the assembly and welding longitudinal seam stage.
The method for assembling the side wall of the BOP process large storage tank is characterized in that: the first ring of wall plates below the tank top are integrally lifted, and the whole lifting process is commanded by a hydraulic lifting control cabinet; switching on a power supply of a main control cabinet, controlling the hydraulic pump station to be in an operation state, and controlling all the hydraulic stations to start synchronous operation after checking that the operation pressure of the hydraulic pump station is normal and stable; after the pressure of the hydraulic station cylinder rises to a set value, checking whether all the pull rods are uniformly stressed; after all the parts are normal, the lifting button is started, and the wall plate of the storage tank is lifted under the action of the pulling force of the oil cylinder; in addition, if the lifting height of a certain hydraulic station is found to be too large or too small in the whole lifting process, lifting can be stopped, and the lifting/descending button in the control panel is used for independently operating the hydraulic station; when the lifting is carried out to the 'butt joint' height, the lifting can be stopped in place, all the ball valves of the oil cylinder inlet and outlet and the pump station main valve are closed for pressure maintaining, and the primary lifting is completed at the moment; after the assembly of the next round of wall plates and the welding work of the longitudinal seam are finished, the circumferential seams of the wall plates and the previous round of wall plates are welded, and after all the welding seams are qualified through nondestructive testing, the falling work can be carried out;
The hydraulic lifting control cabinet is provided with a special hydraulic lifting control panel, and is connected with the power cabinet in an aviation plug connection mode, so that the lifting device can be controlled in an intuitive and simple mode;
The maximum working pressure of the hydraulic system is 20MPa, the maximum stroke of the oil cylinder is 3200mm, and the hydraulic system can be lifted in place once;
The hydraulic pump station comprises an oil pump, a motor, a control valve, an oil tank, an oil pipe bracket and the like;
the system automatically performs jacking inspection in the jacking process, wherein the inspection mode is that the jacking process is automatically ended every 1 minute after jacking begins to prompt inspection, and if no condition exists, a jacking button can be started to continue the jacking process;
the lifting device falls back, the power supply of the power cabinet is turned off before falling, all the oil cylinder stop valves and the pump station master valve are turned on, and finally the falling button of the control panel of the control cabinet is pressed.
The method for assembling the side wall of the BOP process large storage tank is characterized in that: assembling and longitudinal seam welding of the coaming of the second ring of the wall plate under the tank top, adjusting the position of the second ring of the wall plate after the whole body of the first ring of the wall plate under the tank top is lifted, enabling the distance between adjacent wall plates to be smaller than 1mm, and then assembling and fixing by using a door plate assembly buckle wall plate connecting seat; the longitudinal seam welding of the second ring of wall plates below the tank top is consistent with the longitudinal seam welding flow of the first ring of wall plates, and the description is omitted;
the longitudinal seams of the shutter plate assemblies along the wall plates are less than 500mm in interval; the wallboard connecting seat is fixed with the wallboard spot welding seam.
The method for assembling the side wall of the BOP process large storage tank is characterized in that: the method comprises the steps of performing girth welding on a first ring of wall plate and a second ring of wall plate under the tank top, and controlling a hydraulic jacking device to adjust the first ring of wall plate under the tank top and the second ring of wall plate under the tank top to be just butt-jointed when the longitudinal seam welding of the first ring of wall plate and the second ring of wall plate under the tank top is completed; firstly, welding an external circular seam, then welding an internal circular seam, and carrying MAG automatic welding equipment on each single-side circular seam by adopting four annular construction operation platform trucks, wherein the MAG automatic welding equipment is symmetrically and uniformly distributed along the circumference of the tank wall in the same direction;
the gap between the first and second circles of wall plates below the tank top after butt joint is smaller than 2mm;
the girth welding sequence is that the outside is firstly and then the inside is firstly, but the inside welding at the same position can be carried out after the outside welding is finished for a certain time interval, and the whole welding position can be carried out after the outside welding is finished without waiting for the whole welding position, so that the welding efficiency is improved;
The circular seam welding of the first and second ring of wall plates below the tank top adopts multilayer multi-pass double-sided welding, the groove is in a butt joint K shape, the groove is formed in the first ring of wall plate below the tank top, the groove is not formed in the second ring of wall plate below the tank top, and the circular seam groove needs to be cleaned before welding; the welding adopts autonomous integrated consumable electrode gas shielded automatic welding (MAG), the welding material is carbon steel solid welding wire with the diameter of 1.2mm, and the shielding gas is 80 percent Ar+20 percent CO 2.
And repeating the assembly of the next-ring-layer wall plate, the integral lifting of the upper-ring-layer wall plate, the longitudinal seam welding of the next-ring-layer wall plate and the welding of the upper-ring-layer annular seam and the lower-ring-layer annular seam in sequence until the integral welding of the side wall of the storage tank is completed.
Claims (1)
1. The assembly method of the side wall of the BOP process large storage tank is characterized by comprising the following steps: 1) Installing an annular operation platform truck of the storage tank; 2) The coaming, the pairing and the longitudinal seam of the first ring of the wallboard under the tank top are welded; 3) Installing a synchronous hydraulic lifting device of the storage tank; 4) Coaming of a second ring of wallboard at the top of the tank; 5) The first ring of wall plates below the tank top are integrally lifted; 6) Assembling and longitudinal seam welding of the second ring of wallboard coamings below the tank top; 7) Girth welding of the first and second circles of wall plates below the tank top; 8) Repeating the steps 4) to 7) until the whole welding of the side wall of the storage tank is completed;
the annular operation platform trolley for the storage tank can meet the welding requirements of longitudinal seams and circumferential seams of the storage tank, and the provided platform can meet the requirements of personnel and equipment stations for working such as welding seam polishing, nondestructive testing, repairing and the like;
Installing an annular construction operation platform vehicle of the storage tank, wherein the annular construction operation platform vehicle of the storage tank comprises an inner annular construction track, an outer annular construction track and an inner annular construction platform vehicle body assembly; the inner and outer annular construction tracks are arranged by adopting a single track, the inner track is directly paved on the bottom plate of the storage tank, the outer track is required to be additionally provided with a track support to enable the inner track and the outer track to be on the same plane, and the inner and outer operation platform trucks can be used simultaneously after the track is paved; the inner and outer operation platform car body assembly is used for wall plate assembly pairing, adjustment, automatic welding, welding line polishing, nondestructive testing, shooting and personnel and equipment station position during repair; the vertical welding device and the annular welding device carried by the internal and external operation platform truck are MAG automatic welding equipment, so that transverse welding and vertical welding processes required by side wall welding can be simultaneously met, and welding quality and operation efficiency can be ensured; the annular construction operation platform truck of the storage tank needs to be provided with the supporting legs when entering the annular track to carry out welding operation, so that the platform is prevented from tipping, and the supporting legs are adjusted and recycled to leave the ground when walking;
The inner and outer annular construction tracks mainly comprise a bottom support and a single-side track, wherein the bottom support is formed by integrally spot-welding Q235 material 8# channel steel on a storage tank bottom plate, and the single-side track is formed by welding Q235 material-10 mm multiplied by 100mm steel plates;
The foundation plate for supporting the rail is fixed on the side surface of the tank foundation and the foundation through expansion bolts;
The main structure of the internal and external operation platform truck body assembly comprises a vertical welding device, an annular welding device, an operation platform rack and an operation platform rack; the annular welding device is fixed in the operating platform frame, and the vertical welding device is fixed at the left side of the operating platform;
the annular construction operation platform truck finishes the welding of the longitudinal seam of the upper ring of the wall plate, and the electromagnet is used for attracting and covering the wall plate of the storage tank to prevent the platform from tipping, and the auxiliary supporting wheel of the platform is required to be regulated to act on the cylinder plate of the storage tank when the circumferential seam is welded and walked, so that the tipping prevention effect is achieved;
The MAG automatic welding equipment can realize automatic channel arrangement and welding bead storage and modification of flat welding and vertical welding by parameterized programming of a MAG automatic welding control system;
the coaming, the pairing and the longitudinal seam welding of the first circle of the wallboard under the tank top are carried out, after the first circle of the wallboard is hoisted and the coaming is in place, the adjacent wallboard is assembled and fixed by using a connector of the wallboard of the door plank assembly buckle, and after all the wallboards are adjusted, the wallboards are welded and fixed again by spot welding; the welding of longitudinal seams of the wall plates of the storage tank follows the sequence of the outside and the inside, and the longitudinal seams of the wall plates of the storage tank are removed before being welded;
The longitudinal seams of the shutter plate assemblies along the wall plates are less than 500mm in interval; the wallboard connecting seat is fixed with the wallboard spot welding seam; the gap between adjacent wall plates after the assembly and the point welding are fixed is smaller than 1mm;
The longitudinal seam welding sequence is that the outside is firstly and then the inside is firstly, but the inside welding at the same position can be performed after the outside welding is finished for a certain time interval, and the whole welding position can be performed after the outside welding is finished without waiting for the whole welding position to be finished, so that the welding efficiency is improved;
The longitudinal seam welding of the wallboard adopts multi-layer multi-channel double-sided welding, the groove form is butt joint 'X', the welding adopts autonomous integrated consumable electrode gas shielded automatic welding (MAG), the welding material is carbon steel solid welding wires with the diameter of 1.2mm, and the shielding gas is 80 percent Ar+20 percent CO 2;
the expansion ring is formed by buckling after correcting the rolling arc of the channel steel, and the installation height is 100mm above the bottom of the wallboard;
The method comprises the steps of installing a synchronous hydraulic lifting device of a storage tank, determining the number of required hydraulic cylinders according to the total lifting amount and the rated bearing capacity of the hydraulic cylinders, arranging the cylinders in the storage tank at equal intervals, and avoiding the position of a vertical welding seam of a wall plate of the last circle at the arrangement position; the distance between the hydraulic cylinder and the inner wall of the storage tank is 210mm; the bottom of the oil cylinder is welded and fixed with the bottom plate of the storage tank by a positioning clamping plate, and a buttress support at the top of the oil cylinder adjusts the oil cylinder to be vertically positioned; one end of the lifting pull rod is hinged with the oil cylinder connecting seat, and the other end of the lifting pull rod is welded with the expansion ring through the lifting lug, so that the oil cylinder is connected with the wall plate of the storage tank; one end of each supporting rod is bolted and fixed with a connecting piece at the top of the oil cylinder, the other end of each supporting rod is welded and fixed with a bottom plate of the storage tank, and the two supporting rods are arranged in a front-back included angle of 45 degrees and a left-right included angle of 60 degrees; the oil cylinders are connected after being arranged in place, all oil ways and circuits are checked, whether all connecting pieces are firm or not is checked, and the hydraulic facilities are guaranteed to be in a working state;
The synchronous hydraulic jacking device for the storage tank can be simultaneously or later welded with the assembly of the first round of wall plates below the tank top and the external longitudinal seam, and the next working procedure is not required to be started after the previous working procedure is completely ended;
The hydraulic jacking device is characterized in that 1 main control cabinet controls 2 groups of power supply cabinets, each group of power supply cabinets can control 1-2 hydraulic stations, and each hydraulic station can drive 6 hydraulic cylinders;
the hydraulic jacking device can increase the total rated jacking weight by increasing the number of the jacking cylinders, the rated jacking weight of the jacking device is not less than 200t, the jacking height is not less than 3m, and the jacking speed is 150-200mm/min;
The coaming of a second ring of wallboards under the tank top is attached to the first ring of wallboards after being hoisted in place, the distance between adjacent wallboards is adjusted to be smaller than 1mm, spot welding preliminary fixation is carried out, and one adjacent wallboard is left on the whole second ring of wallboards without spot welding for integral adjustment in the assembly and welding longitudinal seam stage;
the first ring of wall plates below the tank top are integrally lifted, and the whole lifting process is commanded by a hydraulic lifting control cabinet; switching on a power supply of a main control cabinet, controlling the hydraulic pump station to be in an operation state, and controlling all the hydraulic stations to start synchronous operation after checking that the operation pressure of the hydraulic pump station is normal and stable; after the pressure of the hydraulic station cylinder rises to a set value, checking whether all the pull rods are uniformly stressed; after all the parts are normal, the lifting button is started, and the wall plate of the storage tank is lifted under the action of the pulling force of the oil cylinder; in addition, if the lifting height of a certain hydraulic station is found to be too large or too small in the whole lifting process, lifting can be stopped, and the lifting/descending button in the control panel is used for independently operating the hydraulic station; when the lifting is carried out to the 'butt joint' height, the lifting can be stopped in place, all the ball valves of the oil cylinder inlet and outlet and the pump station main valve are closed for pressure maintaining, and the primary lifting is completed at the moment; after the assembly of the next round of wall plates and the welding work of the longitudinal seam are finished, the circumferential seams of the wall plates and the previous round of wall plates are welded, and after all the welding seams are qualified through nondestructive testing, the falling work can be carried out;
The hydraulic lifting control cabinet is provided with a special hydraulic lifting control panel, and is connected with the power cabinet in an aviation plug connection mode, so that the lifting device can be controlled in an intuitive and simple mode;
The maximum working pressure of the hydraulic system is 20MPa, the maximum stroke of the oil cylinder is 3200mm, and the hydraulic system can be lifted in place once;
The hydraulic pump station comprises an oil pump, a motor, a control valve, an oil tank, an oil pipe bracket and the like;
the system automatically performs jacking inspection in the jacking process, wherein the inspection mode is that the jacking process is automatically ended every 1 minute after jacking begins to prompt inspection, and if no condition exists, a jacking button can be started to continue the jacking process;
the lifting device falls back, the power supply of the power cabinet is firstly turned off before falling, all the oil cylinder stop valves and the pump station master valve are turned on, and finally the falling button of the control panel of the control cabinet is pressed down;
Assembling and longitudinal seam welding of the coaming of the second ring of the wall plate under the tank top, adjusting the position of the second ring of the wall plate after the whole body of the first ring of the wall plate under the tank top is lifted, enabling the distance between adjacent wall plates to be smaller than 1mm, and then assembling and fixing by using a door plate assembly buckle wall plate connecting seat; the longitudinal seam welding of the second ring of wall plates below the tank top is consistent with the longitudinal seam welding flow of the first ring of wall plates, and the description is omitted;
The longitudinal seams of the shutter plate assemblies along the wall plates are less than 500mm in interval; the wallboard connecting seat is fixed with the wallboard spot welding seam;
the method comprises the steps of performing girth welding on a first ring of wall plate and a second ring of wall plate under the tank top, and controlling a hydraulic jacking device to adjust the first ring of wall plate under the tank top and the second ring of wall plate under the tank top to be just butt-jointed when the longitudinal seam welding of the first ring of wall plate and the second ring of wall plate under the tank top is completed; firstly, welding an external circular seam, then welding an internal circular seam, and carrying MAG automatic welding equipment on each single-side circular seam by adopting four annular construction operation platform trucks, wherein the MAG automatic welding equipment is symmetrically and uniformly distributed along the circumference of the tank wall in the same direction;
the gap between the first and second circles of wall plates below the tank top after butt joint is smaller than 2mm;
the girth welding sequence is that the outside is firstly and then the inside is firstly, but the inside welding at the same position can be carried out after the outside welding is finished for a certain time interval, and the whole welding position can be carried out after the outside welding is finished without waiting for the whole welding position, so that the welding efficiency is improved;
The circular seam welding of the first and second ring of wall plates below the tank top adopts multilayer multi-pass double-sided welding, the groove is in a butt joint K shape, the groove is formed in the first ring of wall plate below the tank top, the groove is not formed in the second ring of wall plate below the tank top, and the circular seam groove needs to be cleaned before welding; the welding adopts autonomous integrated consumable electrode gas shielded automatic welding (MAG), the welding material is carbon steel solid welding wire with the diameter of 1.2mm, the shielding gas is 80 percent Ar+20 percent CO 2,
And repeating the assembly of the next-ring-layer wall plate, the integral lifting of the upper-ring-layer wall plate, the longitudinal seam welding of the next-ring-layer wall plate and the welding of the upper-ring-layer annular seam and the lower-ring-layer annular seam in sequence until the integral welding of the side wall of the storage tank is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110295335.0A CN115106623B (en) | 2021-03-19 | 2021-03-19 | BOP process large storage tank side wall assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110295335.0A CN115106623B (en) | 2021-03-19 | 2021-03-19 | BOP process large storage tank side wall assembling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115106623A CN115106623A (en) | 2022-09-27 |
| CN115106623B true CN115106623B (en) | 2024-05-14 |
Family
ID=83323577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110295335.0A Active CN115106623B (en) | 2021-03-19 | 2021-03-19 | BOP process large storage tank side wall assembling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115106623B (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57127070A (en) * | 1980-11-24 | 1982-08-07 | Hahn & Clay | Method and apparatus for installing multi-layered container to actual place |
| JPH0575338U (en) * | 1992-03-11 | 1993-10-15 | 川崎重工業株式会社 | Movable scaffolding inside a spherical tank |
| US6282863B1 (en) * | 1998-07-02 | 2001-09-04 | Chicago Bridge And Iron | Scaffoldless tank erection method |
| CN101890583A (en) * | 2009-11-17 | 2010-11-24 | 陕西化建工程有限责任公司 | Hydraulic jacking automatic welding inverted construction method of large-sized storage tank |
| CN201703776U (en) * | 2010-06-29 | 2011-01-12 | 中国十七冶集团有限公司 | Inverted lifting device of storage tank |
| CN202411640U (en) * | 2011-10-15 | 2012-09-05 | 中国石油天然气集团公司 | Arch crown reverse storage tank CO2 automatic welding anti-wind device |
| CN202684385U (en) * | 2012-05-11 | 2013-01-23 | 上海市安装工程有限公司 | Guide rail equipment for automatic welding machine to walk during storage tank upside-down construction |
| CN103381531A (en) * | 2013-07-01 | 2013-11-06 | 中国核工业第二二建设有限公司 | Steel plate butt welding positioning device and counterpoint method |
| CN107511559A (en) * | 2017-09-06 | 2017-12-26 | 中国核工业华兴建设有限公司 | A kind of nuclear power station two phase stainless steel pond clad can installation method and welding procedure |
| CN107755856A (en) * | 2017-11-22 | 2018-03-06 | 南京奥特电气股份有限公司 | A kind of reservoir walls longitudinal seam welding device and welding method |
| CN109676290A (en) * | 2019-01-24 | 2019-04-26 | 青岛沃华软控有限公司 | Storage Tank Construction technique |
| CN209211859U (en) * | 2018-09-10 | 2019-08-06 | 中国核工业二三建设有限公司 | A kind of nuclear power basin installation auxiliary device |
| CN209919190U (en) * | 2019-02-28 | 2020-01-10 | 中国核工业华兴建设有限公司 | Rib-free top plate mounting device for storage tank flip-chip mounting method |
| CN111331227A (en) * | 2019-11-27 | 2020-06-26 | 西安石油大学 | 50000m3Flip-chip method of CO from the following storage tank2Automatic welding process and device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8324527B2 (en) * | 2009-06-17 | 2012-12-04 | Union Tank Car Company | Hybrid laser arc welding system and method for railroad tank car fabrication |
-
2021
- 2021-03-19 CN CN202110295335.0A patent/CN115106623B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57127070A (en) * | 1980-11-24 | 1982-08-07 | Hahn & Clay | Method and apparatus for installing multi-layered container to actual place |
| JPH0575338U (en) * | 1992-03-11 | 1993-10-15 | 川崎重工業株式会社 | Movable scaffolding inside a spherical tank |
| US6282863B1 (en) * | 1998-07-02 | 2001-09-04 | Chicago Bridge And Iron | Scaffoldless tank erection method |
| CN101890583A (en) * | 2009-11-17 | 2010-11-24 | 陕西化建工程有限责任公司 | Hydraulic jacking automatic welding inverted construction method of large-sized storage tank |
| CN201703776U (en) * | 2010-06-29 | 2011-01-12 | 中国十七冶集团有限公司 | Inverted lifting device of storage tank |
| CN202411640U (en) * | 2011-10-15 | 2012-09-05 | 中国石油天然气集团公司 | Arch crown reverse storage tank CO2 automatic welding anti-wind device |
| CN202684385U (en) * | 2012-05-11 | 2013-01-23 | 上海市安装工程有限公司 | Guide rail equipment for automatic welding machine to walk during storage tank upside-down construction |
| CN103381531A (en) * | 2013-07-01 | 2013-11-06 | 中国核工业第二二建设有限公司 | Steel plate butt welding positioning device and counterpoint method |
| CN107511559A (en) * | 2017-09-06 | 2017-12-26 | 中国核工业华兴建设有限公司 | A kind of nuclear power station two phase stainless steel pond clad can installation method and welding procedure |
| CN107755856A (en) * | 2017-11-22 | 2018-03-06 | 南京奥特电气股份有限公司 | A kind of reservoir walls longitudinal seam welding device and welding method |
| CN209211859U (en) * | 2018-09-10 | 2019-08-06 | 中国核工业二三建设有限公司 | A kind of nuclear power basin installation auxiliary device |
| CN109676290A (en) * | 2019-01-24 | 2019-04-26 | 青岛沃华软控有限公司 | Storage Tank Construction technique |
| CN209919190U (en) * | 2019-02-28 | 2020-01-10 | 中国核工业华兴建设有限公司 | Rib-free top plate mounting device for storage tank flip-chip mounting method |
| CN111331227A (en) * | 2019-11-27 | 2020-06-26 | 西安石油大学 | 50000m3Flip-chip method of CO from the following storage tank2Automatic welding process and device |
Non-Patent Citations (8)
| Title |
|---|
| 20000m~3甲醇储罐现场安装与焊接;曹专;;石油化工建设(第05期);24-30 * |
| 一种新型储罐环形施工作业平台车的设计;施发永;杨岳;吴建建;代四飞;建筑机械(第第8期期);88-91 * |
| 不锈钢储罐焊接技术;张前磊;;焊接技术(第07期);107-109 * |
| 核电不锈钢换料水箱安装焊接;兰垂祥;;焊接技术(第S2期);57-60 * |
| 浅谈大型浮顶储罐倒装施工焊接技术;张东锡;;金属加工(热加工)(第14期);52-53 * |
| 液压顶升倒装技术在大型外浮顶储罐施工中的应用;杨亚星;张丽珍;;石油工程建设(03);63-66 * |
| 液压顶升法在新加坡储罐工程中应用技术;夏吉龙;迟焕娟;;石油化工建设;20110820(第04期);46-48 * |
| 组合焊法在油罐焊接上的应用研究;毛文军;宋杰;;中国设备工程;20200125(第02期);218-220 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115106623A (en) | 2022-09-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101890583B (en) | Hydraulic jacking automatic welding inverted construction method of large-sized storage tank | |
| CN102184747B (en) | Modular steel containment vessel annular hanging beam and assembling method thereof | |
| CN102423825A (en) | On-site splicing process of large-sized vacuum flange | |
| CN110104569A (en) | A kind of method and apparatus of municipal pipeline auxiliary installation | |
| CN109501867A (en) | Frame-type vehicle body structure of rear cabin and welding method | |
| CN109967832A (en) | A kind of robot welding product line and its welding method for intermediate channel | |
| CN104801836A (en) | Offshore wind power generation jacket foundation flange installation method | |
| CN101857067B (en) | Special support tooling for installing translational hatch cover of bulk carrier and installation method thereof | |
| CN115106623B (en) | BOP process large storage tank side wall assembling method | |
| CN102848056A (en) | Field welding method for wall boards of steel lining of nuclear power plant | |
| CN105458473A (en) | Automatic welding device used for circumferential weld seam | |
| CN116100182A (en) | Welding method for C-shaped marine LNG storage tank anti-moving block | |
| CN107386247B (en) | Block-type large damping water tank steel structure sudden-expansion body of hydraulic drive type ship lift and closed deep hole installation construction method | |
| CN116517363A (en) | Construction method for splicing limited space ice storage device | |
| CN217291172U (en) | Steel pipeline butt joint adjusting device | |
| CN101549427A (en) | Automatic multilayer oscillation welding device | |
| CN207057885U (en) | A kind of web member end socket double-face automatic welding device | |
| CN202064289U (en) | Flow splitting and switching device for concrete pumping | |
| CN105714935A (en) | AP1000 superposed dome assembling technology | |
| CN115007971A (en) | Single-side welding double-side forming laser tracking MAG automatic welding method for installation of nuclear power station containment steel lining cylinder and dome | |
| CN219254428U (en) | Automatic argon arc welding equipment for annular seam of inner tank of LNG (liquefied Natural gas) storage tank | |
| CN205520016U (en) | Pipeline welding is with left baffle and gas protection device and welding frock | |
| CN204321385U (en) | Heavy caliber gas pipeline welding variable adjustment stage apparatus | |
| CN114346384B (en) | Automatic welding device for circumferential seams of steel pipes of pressure vertical shafts and construction method | |
| CN216326050U (en) | Storage tank annular construction work platform truck |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |