CN116344078A - Penetrating piece and water tank installation method - Google Patents
Penetrating piece and water tank installation method Download PDFInfo
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- CN116344078A CN116344078A CN202310441448.6A CN202310441448A CN116344078A CN 116344078 A CN116344078 A CN 116344078A CN 202310441448 A CN202310441448 A CN 202310441448A CN 116344078 A CN116344078 A CN 116344078A
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- 230000000149 penetrating effect Effects 0.000 title claims abstract description 241
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 199
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000009434 installation Methods 0.000 title claims abstract description 26
- 238000003466 welding Methods 0.000 claims abstract description 160
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 63
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 84
- 230000035515 penetration Effects 0.000 claims description 49
- 229910052786 argon Inorganic materials 0.000 claims description 42
- 238000004873 anchoring Methods 0.000 claims description 21
- 230000037452 priming Effects 0.000 claims description 21
- 238000009659 non-destructive testing Methods 0.000 claims description 12
- 238000010276 construction Methods 0.000 abstract description 18
- 239000007788 liquid Substances 0.000 description 15
- 238000007689 inspection Methods 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000005498 polishing Methods 0.000 description 9
- 229910001220 stainless steel Inorganic materials 0.000 description 9
- 239000010935 stainless steel Substances 0.000 description 9
- 238000013461 design Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/18—Emergency cooling arrangements; Removing shut-down heat
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/02—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices
- G21C15/14—Arrangements or disposition of passages in which heat is transferred to the coolant; Coolant flow control devices from headers; from joints in ducts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention provides a penetrating piece and a water tank installation method, which relate to the technical field of nuclear power construction, wherein after a water tank and a penetrating piece are lifted and placed, the actual positions of the water tank and the penetrating piece are detected, the deviation between the actual position of the water tank and the preset position of the water tank accords with a first preset deviation range, and after the deviation between the actual position of the penetrating piece and the preset position of the penetrating piece accords with a second preset deviation range, welding construction is performed; and after the welding of the penetrating piece and the water tank and the reinforcing annular plate and the penetrating piece is completed, the actual positions of the water tank and the penetrating piece are retested, the deviation between the actual position of the water tank and the preset position of the water tank accords with a first preset deviation range, and the deviation between the actual position of the penetrating piece and the preset position of the penetrating piece accords with a second preset deviation range, and then the reinforcing annular plate and the truncated cone are welded. The accuracy of the positions of the penetrating piece and the water tank can be improved, so that the positions of the penetrating piece and the water tank are ensured to meet deviation requirements.
Description
Technical Field
The invention relates to the technical field of nuclear power construction, in particular to a penetrating piece and a water tank installation method.
Background
The safety injection system is an important barrier for preventing the core from melting due to accidents and causing nuclear leakage.
The penetration and the water tank are important components of the safety injection system, and are mounted on the steel lining inner bottom plate of the reactor building raft. One end of the penetrating piece is connected with the water tank, the connection mode adopts angle welding of a stainless steel single-sided groove, the other end of the penetrating piece penetrates through the steel lining to be communicated with the peripheral factory building, and when the penetrating piece penetrates through the steel lining, the connection mode between the penetrating piece and the steel lining is dissimilar steel single-sided groove angle welding.
However, the penetration and the tank are often displaced during installation, which can result in the penetration and the tank not being positioned to meet the deviation requirements after installation.
Disclosure of Invention
The invention aims to provide a penetrating piece and a water tank installation method, which are used for solving the technical problem that the positions of the water tank and the penetrating piece in the prior art cannot meet the deviation requirement.
The invention provides a penetrating piece and a water tank installation method, which comprises the following steps:
step S1: positioning and adjusting the water tank and the penetrating piece, and hoisting the water tank and the penetrating piece to a position after the water tank and the penetrating piece are respectively adjusted to preset positions;
step S2: measuring the actual position of the water tank, and checking whether the deviation between the actual position of the water tank and the preset position of the water tank accords with a first preset deviation range;
measuring the actual position of the penetrating piece, and checking whether the deviation between the actual position of the penetrating piece and the preset position of the penetrating piece accords with a second preset deviation range;
step S3: performing welded junction assembly on the penetrating piece and the water tank, performing welded junction assembly on the reinforcing annular plate and the penetrating piece, and performing welded junction assembly on the reinforcing annular plate and the truncated cone;
step S4: welding the penetrating piece and the water tank, and carrying out nondestructive testing on the welding position of the penetrating piece and the water tank; welding the reinforcing annular plate and the penetrating piece, and carrying out nondestructive testing on the welding position of the reinforcing annular plate and the penetrating piece;
step S5: retesting the actual position of the water tank, and checking whether the deviation between the actual position of the water tank and the preset position of the water tank accords with a first preset deviation range or not;
retesting the actual position of the penetrating piece, and checking whether the deviation between the actual position of the penetrating piece and the preset position of the penetrating piece accords with a second preset deviation range or not;
step S6: welding the reinforcing annular plate and the truncated cone.
Further, the step S1 is preceded by the following steps:
step S0: and (3) performing welded junction assembly on the penetrating piece and the anchoring plate, welding the penetrating piece and the anchoring plate, and performing nondestructive testing on the welding position of the penetrating piece and the anchoring plate.
Further, step S3 further includes the steps of: and placing a balancing weight on the top of the water tank.
Further, placing the balancing weight on top of the water tank comprises the steps of:
paving a plate on the top of the water tank; placing a balancing weight on the plate, wherein the weight of the balancing weight is 2.8 tons to 3.2 tons; and erecting guardrails around the water tank.
Further, measuring the actual position of the water tank comprises the steps of:
measuring position information of center points of four side plates of the water tank to measure the actual position of the water tank;
measuring the actual position of the penetration includes the steps of:
positional information of two points of the outer surface of the penetration is measured to measure the actual position of the penetration.
Further, the first preset deviation range comprises a horizontal direction deviation range and a first elevation direction deviation range, wherein the horizontal direction deviation range is +/-5 mm, and the first elevation direction deviation range is +/-5 mm;
the second preset deviation range comprises an axis deviation range and a second elevation direction deviation range, wherein the axis deviation range is +/-30 mm, and the second elevation direction deviation range is +/-15 mm.
Further, retesting the actual position of the water tank includes the steps of:
measuring position information of center points of four side plates of the water tank to measure the actual position of the water tank;
the retesting of the actual position of the penetration includes the steps of:
positional information of two points of the outer surface of the penetration is measured to measure the actual position of the penetration.
Further, step S4 further includes:
argon filling protection is carried out on the back of a welded junction of the penetrating piece and the water tank, and argon arc priming is carried out; and welding the penetrating piece and the water tank in a sectional symmetrical welding mode.
Further, step S4 further includes:
argon filling protection is carried out on the back of the welded junction of the reinforcing annular plate and the penetrating piece, and argon arc priming is carried out; and welding the reinforcing annular plate and the penetrating piece in a sectional symmetrical welding mode.
Further, step S0 further includes:
argon filling protection is carried out on the back of a welded junction of the penetrating piece and the anchoring plate, and argon arc priming is carried out; and welding the penetrating piece and the anchoring plate in a sectional symmetrical welding mode.
The invention provides a penetrating piece and a water tank installation method, which comprises the following steps: step S1: positioning and adjusting the water tank and the penetrating piece, and hoisting the water tank and the penetrating piece to a position after the water tank and the penetrating piece are respectively adjusted to preset positions; step S2: measuring the actual position of the water tank, and checking whether the deviation between the actual position of the water tank and the preset position of the water tank accords with a first preset deviation range; measuring the actual position of the penetrating piece, and checking whether the deviation between the actual position of the penetrating piece and the preset position of the penetrating piece accords with a second preset deviation range; step S3: performing welded junction assembly on the penetrating piece and the water tank, performing welded junction assembly on the reinforcing annular plate and the penetrating piece, and performing welded junction assembly on the reinforcing annular plate and the truncated cone; step S4: welding the penetrating piece and the water tank, and carrying out nondestructive testing on the welding position of the penetrating piece and the water tank; welding the reinforcing annular plate and the penetrating piece, and carrying out nondestructive testing on the welding position of the reinforcing annular plate and the penetrating piece; step S5: retesting the actual position of the water tank, and checking whether the deviation between the actual position of the water tank and the preset position of the water tank accords with a first preset deviation range or not; retesting the actual position of the penetrating piece, and checking whether the deviation between the actual position of the penetrating piece and the preset position of the penetrating piece accords with a second preset deviation range or not; step S6: welding the reinforcing annular plate and the truncated cone. According to the penetrating piece and the water tank installation method, after the water tank and the penetrating piece are lifted and placed, the actual positions of the water tank and the penetrating piece are detected, the deviation between the actual position of the water tank and the preset position of the water tank accords with a first preset deviation range, and after the deviation between the actual position of the penetrating piece and the preset position of the penetrating piece accords with a second preset deviation range, welding construction is performed; and after the welding of the penetrating piece and the water tank and the reinforcing annular plate and the penetrating piece is completed, the actual positions of the water tank and the penetrating piece are retested, the deviation between the actual position of the water tank and the preset position of the water tank accords with a first preset deviation range, and the deviation between the actual position of the penetrating piece and the preset position of the penetrating piece accords with a second preset deviation range, and then the reinforcing annular plate and the truncated cone are welded. The position of the water tank and the position of the penetrating piece are measured after the water tank and the penetrating piece fall in place, and the position of the water tank and the position of the penetrating piece are retested after the welding of the penetrating piece and the water tank and the reinforcing annular plate and the penetrating piece is finished, so that the accuracy of the positions of the penetrating piece and the water tank can be improved, and the positions of the penetrating piece and the water tank are guaranteed to meet the deviation requirement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a plan view of a penetrating member and a water tank in a method of installing the penetrating member and the water tank according to an embodiment of the present invention;
FIG. 2 is a schematic view of the penetrating member and the water tank in the method for installing the penetrating member and the water tank according to the embodiment of the present invention;
FIG. 3 is a diagram showing distribution of test points of a penetration and a tank in a method of installing the penetration and the tank according to an embodiment of the present invention;
fig. 4 is a flowchart of a penetrating member and a method for installing a water tank according to an embodiment of the present invention.
Icon: 1-a water tank; 11-measuring point of the water tank; 2-a penetration; 21-an inner tube; 22-an outer tube; 23-outer sleeve; 24-reinforcing annular plates; 25-an anchor plate; 26—measuring point of penetration; 3-steel lining the inner bottom plate; 4-truncated cone.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a penetrating piece and a water tank installation method, and a plurality of embodiments are provided below to describe the penetrating piece and the water tank installation method in detail.
The penetrating piece and the water tank installation method provided in the embodiment, as shown in fig. 1 to 4, include the following steps:
step S1: positioning and adjusting the water tank 1 and the penetrating piece 2, and hoisting the water tank 1 and the penetrating piece 2 to a position after the water tank 1 and the penetrating piece 2 are respectively adjusted to preset positions; the preset position is determined according to the design drawing;
step S2: measuring the actual position of the water tank 1, and checking whether the deviation between the actual position of the water tank 1 and the preset position of the water tank 1 accords with a first preset deviation range;
measuring the actual position of the penetrating member 2, and checking whether the deviation between the actual position of the penetrating member 2 and the preset position of the penetrating member 2 accords with a second preset deviation range;
step S3: the welding mouth assembly is carried out on the penetrating piece 2 and the water tank 1, the welding mouth assembly is carried out on the reinforcing annular plate 24 and the penetrating piece 2, and the welding mouth assembly is carried out on the reinforcing annular plate 24 and the truncated cone 4;
step S4: welding the penetrating piece 2 and the water tank 1, and performing nondestructive detection on the welding position of the penetrating piece 2 and the water tank 1; welding the reinforcing annular plate 24 and the penetrating piece 2, and performing nondestructive testing on the welding position of the reinforcing annular plate 24 and the penetrating piece 2;
step S5: retesting the actual position of the water tank 1, checking whether the deviation between the actual position of the water tank 1 and the preset position of the water tank 1 accords with a first preset deviation range;
retesting the actual position of the penetrating piece 2, and checking whether the deviation between the actual position of the penetrating piece 2 and the preset position of the penetrating piece 2 accords with a second preset deviation range;
step S6: the reinforcing ring plate 24 and the truncated cone 4 are welded.
According to the penetrating piece 2 and the water tank 1 installation method provided by the embodiment, after the water tank 1 and the penetrating piece 2 are lifted and placed, the actual positions of the water tank 1 and the penetrating piece 2 are detected, the deviation between the actual position of the water tank 1 and the preset position of the water tank 1 accords with a first preset deviation range, and after the deviation between the actual position of the penetrating piece 2 and the preset position of the penetrating piece 2 accords with a second preset deviation range, welding construction is performed; and after the welding of the penetrating member 2 and the water tank 1 and the reinforcing ring plate 24 and the penetrating member 2 is completed, the actual positions of the water tank 1 and the penetrating member 2 are retested, the deviation between the actual position of the water tank 1 and the preset position of the water tank 1 accords with a first preset deviation range, and the deviation between the actual position of the penetrating member 2 and the preset position of the penetrating member 2 accords with a second preset deviation range, and then the reinforcing ring plate 24 and the truncated cone 4 are welded. The position of the water tank 1 and the position of the penetrating piece 2 are measured after the water tank 1 and the penetrating piece 2 fall in place, the position of the water tank 1 and the position of the penetrating piece 2 are retested after the welding of the penetrating piece 2 and the water tank 1 and the reinforcing annular plate 24 and the penetrating piece 2 is finished, the accuracy of the positions of the penetrating piece 2 and the water tank 1 can be improved, the installation quality of the water tank 1 and the penetrating piece 2 is ensured, and therefore the positions of the penetrating piece 2 and the water tank 1 are ensured to meet the deviation requirement. Due to the improvement of the installation quality of the water tank 1 and the penetration 2, the qualification rate of the installation is improved and the rework rate is reduced, thereby reducing the construction period.
Specifically, the penetrating member 2 includes an inner tube 21, an outer tube 22, an outer tube 23, a reinforcing ring plate 24, and an anchor plate 25, wherein the outer tube 22 is sleeved outside the inner tube 21, the outer tube 23 is sleeved outside the outer tube 22, the reinforcing ring plate 24 is sleeved outside a part of the outer tube 23, and the anchor plate 25 is sleeved outside a part of the outer tube 23.
The welding seam between the reinforcing annular plate 24 and the penetrating piece 2 is FW8, the welding seam grade 1 is level, and the FW8 adopts a dissimilar steel fillet welding process. The weld between the penetration 2 and the anchor plate 25 is FW9, the grade of the weld is grade 2, and the FW9 is a stainless steel fillet welding process. The welding seam between the penetrating piece 2 and the embedded water tank 1 is W1, the welding seam grade is grade 2, and the W1 adopts a stainless steel fillet welding process. W1, FW8 and FW9 are single face bevel angle welds.
In this embodiment, the length of the individual penetrations 2 is about 15 meters and the weight of the individual penetrations 2 is about 10.2 tons. The weight of the single tank 1 is about 1.65 tons.
Further, the step S1 is preceded by the following steps:
step S0: and (3) performing welded junction assembly on the penetrating piece 2 and the anchoring plate 25, welding the penetrating piece 2 and the anchoring plate 25, and performing nondestructive detection on a welding position of the penetrating piece 2 and the anchoring plate 25.
Before the penetrating piece 2 is lifted and put in place, the penetrating piece 2 and the anchoring plate 25 are welded, and the penetrating piece 2 and the anchoring plate 25 do not need to be welded on a construction site, so that the field construction difficulty is reduced.
Specifically, step S0 includes the steps of:
step S01: weld-junction assembly is carried out on the penetrating piece 2 and the anchoring plate 25, and the assembly gap is 1mm-4mm;
step S02: argon filling protection is carried out on the back of the welded junction of the penetrating piece 2 and the anchoring plate 25, and argon arc priming is carried out; specifically, a back tracking argon filling device is arranged at a welded junction of the penetrating piece 2 and the anchoring plate 25;
step S03: the penetrating piece 2 and the anchoring plate 25 are welded in a sectional symmetrical welding mode, specifically, FW9 circumferential weld is equally divided into 12 parts along the circumferential direction, two welders perform symmetrical welding, and the argon arc backing thickness of the weld is not more than 4mm;
step S04: performing liquid permeation inspection on the argon arc priming layer;
step S05: after the argon arc priming liquid penetration inspection is qualified, dismantling the back tracking argon filling device;
step S06: adopting a sectional symmetrical welding mode in the step S03, and welding and filling a second layer of welding seam (manual welding);
step S07: polishing the surface of the second layer of welding seam;
step S08: adopting a sectional symmetrical welding mode in the step S03, and welding and filling a third layer of welding seam (manual welding);
step S09: polishing the surface of the third layer of welding seam;
step S010: adopting a sectional symmetrical welding mode in the step S03, and welding and filling a final layer of welding seam (manual welding);
step S011: polishing the surface of the final layer of welding seam and checking the liquid penetration;
step S012: and (5) wrapping the FW9 welding seam and protecting a finished product.
Specifically, step S1 includes the steps of:
step S11: performing secondary perforating on the truncated cone 4 of the containment vessel, specifically, after the penetrating piece 2 passes through the truncated cone 4, and after the penetrating piece 2 is adjusted to a preset position, the two ends of the penetrating piece 2, the pipe body of the penetrating piece 2, the truncated cone 4 and the pit are in position deviation meeting design requirements, enabling the reinforcing annular plate 24 to be attached to the truncated cone 4 as tightly as possible, drawing secondary cutting lines on the truncated cone 4 along the contour of the reinforcing annular plate 24, and performing secondary perforating on the truncated cone 4 according to the secondary cutting lines after removing the reinforcing annular plate 24;
step S12: the transport trolley is matched in place;
step S13: hoisting the penetrating piece 2 to a position;
step S14: lifting the water tank 1 to a position;
step S15: the water tank 1 and the penetrating piece 2 are sleeved and the positions thereof are adjusted.
Further, in step S2, measuring the actual position of the water tank 1 includes the steps of: measuring position information of center points of four side plates of the water tank 1 to measure an actual position of the water tank 1;
measuring the actual position of the penetration 2 comprises the steps of:
positional information of two points of the outer surface of the penetration 2 is measured to measure the actual position of the penetration 2.
The two points on the outer surface of the penetrating member 2 may be any two suitable points on the outer surface of the penetrating member 2, any two points on the top of the penetrating member 2, any two points on the bottom of the penetrating member 2, and the like.
In this embodiment, as shown in fig. 3, the center points of the four side plates of the water tank 1 are the measurement points 11 of the water tank, and the two points of the outer surface of the penetrating member 2 are the measurement points 26 of the penetrating member 2.
After the water tank 1 and the penetrating piece 2 are lifted and placed, the actual positions of the water tank 1 and the penetrating piece 2 are detected, the deviation between the actual position of the water tank 1 and the preset position of the water tank 1 accords with a first preset deviation range, and after the deviation between the actual position of the penetrating piece 2 and the preset position of the penetrating piece 2 accords with a second preset deviation range, welding construction is performed.
If the deviation between the actual position of the water tank 1 and the preset position of the water tank 1 does not conform to the first preset deviation range, the deviation between the actual position of the penetrating member 2 and the preset position of the penetrating member 2 does not conform to the second preset deviation range, the actual positions of the water tank 1 and the penetrating member 2 need to be adjusted, the deviation between the actual position of the water tank 1 and the preset position of the water tank 1 conforms to the first preset deviation range, and after the deviation between the actual position of the penetrating member 2 and the preset position of the penetrating member 2 conforms to the second preset deviation range, welding construction is performed.
Further, in the installation process of the water tank 1, the first preset deviation range comprises a horizontal direction deviation range and a first elevation direction deviation range, wherein the horizontal direction deviation range is +/-5 mm, and the first elevation direction deviation range is +/-5 mm;
in the process of mounting the penetrating member 2, the second preset deviation range includes an axis deviation range of ±30mm and a second elevation direction deviation range of ±15mm.
And, ensure personnel and machinery are equipped to meet field needs prior to construction. Before the penetrating piece 2 is installed on site, the flange and the anchoring plate 25 are sleeved on the penetrating piece 2 in advance, and the penetrating piece 2 and the anchoring plate 25 are assembled and welded.
Further, step S3: the welding mouth assembly is carried out on the penetrating piece 2 and the water tank 1, the welding mouth assembly is carried out on the reinforcing annular plate 24 and the penetrating piece 2, and the welding mouth assembly is carried out on the reinforcing annular plate 24 and the truncated cone 4;
specifically, the welding port assembly for the penetrating member 2 and the water tank 1 comprises the following steps: and (3) carrying out welded junction assembly on the penetrating piece 2 and the water tank 1, wherein the assembly gap is 1mm-4mm, and the assembly of the welded junction of the penetrating piece 2 and the water tank 1 is fixed by using a fixing block.
The weld-junction pairing of the reinforcing ring plate 24 and the penetrating member 2 includes the steps of: the position of the reinforcing ring plate 24 is regulated to make the gap between the inner ring of the reinforcing ring plate 24 and the penetrating piece 2 uniform, the welding port assembly is carried out on the reinforcing ring plate 24 and the penetrating piece 2, the assembly gap is 1mm-4mm, and the assembly of the welding port of the reinforcing ring plate 24 and the penetrating piece 2 is fixed by using a fixing block.
The weld-junction pairing of the reinforcing ring plate 24 and the truncated cone 4 includes the steps of: the gap between the reinforcing ring plate 24 and the truncated cone 4 is adjusted to enable the assembly gap between the reinforcing ring plate 24 and the truncated cone 4 to be 1mm-4mm, and the assembly of the reinforcing ring plate 24 and the welded junction of the truncated cone 4 is fixed by two sides by using a horse plate.
Further, after the lug assembly is performed on the penetrating member 2 and the water tank 1, the lug assembly is performed on the reinforcing ring plate 24 and the penetrating member 2, and the lug assembly is completed on the reinforcing ring plate 24 and the truncated cone 4, the step S3 further includes the following steps: a weight is placed on top of the tank 1.
In order to prevent the welded junction between the reinforcing ring plate 24 and the penetrating member 2 and the welded junction between the penetrating member 2 and the embedded water tank 1 from being displaced due to thermal deformation during and after the welding process. Before welding the reinforcing ring plate 24 and the penetrating piece 2 and the embedded water tank 1, a balancing weight is added at the top of the water tank 1.
Further, placing the balancing weight on top of the water tank 1 comprises the following steps:
paving a plate on the top of the water tank 1; placing a balancing weight on the plate, wherein the weight of the balancing weight is 2.8 tons to 3.2 tons; guard rails are erected around the water tank 1.
The top of the water tank 1 is paved with a plate which can prevent the balancing weight from damaging the water tank 1, and the plate can be a wood plate, a rubber plate and the like.
The weight of the counterweight can be any suitable weight, such as 2.8 tons, 3 tons, or 3.2 tons. After placing the balancing weight at the top of water tank 1, need set up the guardrail around water tank 1, prevent that personnel from being close to water tank 1.
Further, in step S4, the welding of the penetration 2 with the water tank 1 includes the steps of:
step S41: argon filling protection is carried out on the back of a welded junction between the penetrating piece 2 and the water tank 1, and argon arc priming is carried out;
specifically, step S411: a back tracking argon filling device is arranged on the back before the penetrating piece 2 is welded with the welded junction of the water tank 1; the back tracking argon filling device adopts a pot cover-shaped stainless steel plate, a middle opening of the pot cover-shaped stainless steel plate penetrates through the penetrating piece 2 through the middle opening, the outer edge of the pot cover-shaped stainless steel plate is clung to the wall of the water tank 1, the inner edge of the pot cover-shaped stainless steel plate is clung to the penetrating piece 2, and a stainless steel adhesive tape is used for sealing, so that the airtight property during argon filling is ensured; the argon charging pipe is connected to an interface on the argon charging device so as to realize the protection of back argon charging;
step S412: the welded junction between the penetrating piece 2 and the water tank 1 adopts argon arc priming, the priming thickness is not more than 4mm, the welding method adopts a sectional symmetrical welding mode, the circumferential weld between the penetrating piece 2 and the water tank 1 is equally divided into 12 parts along the circumferential direction, and two welders weld symmetrically; and welding from bottom to top in the welding process.
Step S42: welding the penetrating piece 2 and the water tank 1 in a sectional symmetrical welding mode, and performing nondestructive testing on the welding position of the penetrating piece 2 and the water tank 1;
specifically, step S421: checking a welded junction assembly gap between the penetrating piece 2 and the water tank 1 before welding, and welding after the assembly gap meets design requirements;
step S422: the penetrating piece 2 and the water tank 1 are welded in a sectional symmetrical welding mode, specifically, the circumferential weld joint of the penetrating piece 2 and the water tank 1 is equally divided into 12 parts along the circumferential direction, two welders perform symmetrical welding, the argon arc priming layer is welded, and the argon arc priming thickness of the weld joint is not more than 4mm;
step S423: performing liquid permeation inspection on the argon arc priming layer;
step S424: after the argon arc priming liquid penetration inspection is qualified, adopting a sectional symmetrical welding mode in the step S422 to weld and fill a second layer of welding seam (manual welding);
step S425: polishing the surface of the second layer of welding seam;
step S426: adopting a sectional symmetrical welding mode in the step S422, and welding and filling a third layer of welding seam (manual welding);
step S427: polishing the surface of the third layer of welding seam;
step S428: adopting a sectional symmetrical welding mode in the step S422, and welding and filling a fourth layer of welding seam (manual welding);
step S429: polishing the surface of the fourth layer of welding seam; performing liquid penetration inspection on the fourth layer of welding seam;
step S4210: after the fourth layer of welding seam liquid penetration inspection is qualified, adopting a sectional symmetrical welding mode in the step S422 to weld and fill the final layer of welding seam (manual welding);
step S4211: performing liquid penetration inspection on the final layer welding seam;
step S4212: and after the liquid penetration inspection of the final layer of welding seam is qualified, the welding seam of the penetrating piece 2 and the water tank 1 is wrapped and the finished product is protected.
Further, in step S4, step S43 is included: welding the reinforcing annular plate 24 and the penetrating piece 2, and performing nondestructive testing on the welding position of the reinforcing annular plate 24 and the penetrating piece 2;
specifically, step S431: checking the weld joint assembly gap between the reinforcing ring plate 24 and the penetrating piece 2 before welding, and welding after the assembly gap meets the design requirement;
step S432: argon filling protection is carried out on the back of the welded junction of the reinforcing annular plate 24 and the penetrating piece 2, and argon arc priming is carried out; specifically, a back tracking argon filling device is arranged on the back of a welded junction of the reinforcing annular plate 24 and the penetrating piece 2, an argon filling belt is inserted into a 10mm gap between the truncated cone 4 and the pipe body of the penetrating piece 2 according to the welded junction welding position of the reinforcing annular plate 24 and the penetrating piece 2, and a stainless steel adhesive tape is wound at the gap to ensure the air tightness of argon filling; the welding method adopts a sectional symmetrical welding mode, the circumferential weld between the reinforcing annular plate 24 and the penetrating piece 2 is equally divided into 12 parts along the circumferential direction, two welders perform symmetrical welding, the argon arc priming is welded, and the argon arc priming thickness of the weld is not more than 4mm;
step S433: performing liquid permeation inspection on the argon arc priming layer;
step S434: after the argon arc priming liquid penetration inspection is qualified, dismantling the back tracking argon filling device, and adopting a sectional symmetrical welding mode of the step S432 to weld and fill a second layer of welding seam (manual welding);
step S435: polishing the surface of the second layer of welding seam;
step S436: adopting a sectional symmetrical welding mode in the step S432, and welding and filling a third layer of welding seam (manual welding);
step S437: polishing the surface of the third layer of welding seam;
step S438: adopting a sectional symmetrical welding mode in the step S432, and welding and filling a fourth layer of welding seam (manual welding);
step S439: polishing the surface of the fourth layer of welding seam; performing liquid penetration inspection on the fourth layer of welding seam;
step S4310: after the fourth layer of welding seam liquid penetration inspection is qualified, adopting a sectional symmetrical welding mode of the step S432 to weld and fill the final layer of welding seam (manual welding);
step S4311: performing liquid penetration inspection on the final layer welding seam;
step S4312: and after the final layer of welding seam liquid penetration inspection is qualified, the welding seam of the reinforcing annular plate 24 and the penetrating piece 2 is wrapped and finished product is protected.
In step S5, the actual position of the water tank 1 is retested, and it is checked whether the deviation between the actual position of the water tank 1 and the preset position of the water tank 1 meets the first preset deviation range;
retesting the actual position of the penetrating piece 2, and checking whether the deviation between the actual position of the penetrating piece 2 and the preset position of the penetrating piece 2 accords with a second preset deviation range;
the two points on the outer surface of the penetrating member 2 may be any two suitable points on the outer surface of the penetrating member 2, any two points on the top of the penetrating member 2, any two points on the bottom of the penetrating member 2, and the like.
After step S4, detecting the actual positions of the water tank 1 and the penetrating member 2, and performing welding construction in step S6 after the deviation between the actual position of the water tank 1 and the preset position of the water tank 1 conforms to the first preset deviation range and the deviation between the actual position of the penetrating member 2 and the preset position of the penetrating member 2 conforms to the second preset deviation range.
If the deviation between the actual position of the water tank 1 and the preset position of the water tank 1 does not conform to the first preset deviation range, the deviation between the actual position of the penetrating member 2 and the preset position of the penetrating member 2 does not conform to the second preset deviation range, the actual positions of the water tank 1 and the penetrating member 2 need to be adjusted, the deviation between the actual position of the water tank 1 and the preset position of the water tank 1 conforms to the first preset deviation range, and after the deviation between the actual position of the penetrating member 2 and the preset position of the penetrating member 2 conforms to the second preset deviation range, the welding construction of step S6 is performed.
When the actual position of the water tank 1 is retested, the first preset deviation range comprises a horizontal direction deviation range and a first elevation direction deviation range, wherein the horizontal direction deviation range is +/-5 mm, and the first elevation direction deviation range is +/-5 mm;
when the actual position of the penetration 2 is retested, the second preset deviation range includes an axis deviation range and a second elevation direction deviation range, the axis deviation range is + -30 mm, and the second elevation direction deviation range is + -15 mm.
Further, step S6: the reinforcing ring plate 24 and the truncated cone 4 are welded. Specifically, the welding seam between the reinforcing ring plate 24 and the truncated cone 4 is butt welding; welding is carried out according to the sequence from bottom to top, and symmetrical welding spots are adopted for welding; the horse between the fixed reinforcement ring plate 24 and the truncated cone 4 should be removed when welded to the corresponding position, and the horse should be temporarily reserved for the position where it is not welded temporarily; nondestructive testing of the welded joint of the stiffening ring plate 24 and the truncated cone 4 was performed using 100% RT and 100% PT.
The number of penetrating members 2 and the number of water tanks 1 are plural, and the plurality of water tanks 1 are arranged in one-to-one correspondence with the plurality of penetrating members 2. The penetrating members 2 and the water tanks 1 are arranged on the steel lining bottom plate 3, the penetrating members 2 are arranged at intervals along the circumferential direction of the steel lining bottom plate 3, and the water tanks 1 are arranged at intervals along the circumferential direction of the steel lining bottom plate 3.
According to the mounting method of the penetrating piece 2 and the water tank 1, after lifting and falling, measurement in the construction process is increased, so that the positions of the penetrating piece 2 and the water tank 1 meet deviation requirements, welding deformation is reduced to the greatest extent in a welding construction through a sectional symmetrical welding mode, reworking and repairing are avoided, the welding of FW9, FW8 and W1 welded junctions and the measurement of the embedded water tank 1 and the penetrating piece 2 can be successfully completed within 21 days through the mounting method of the penetrating piece 2 and the water tank 1 provided by the embodiment, the primary qualification rate reaches 100%, and compared with the existing predicted construction period, the construction period can be shortened by 15 days, and potential safety hazards caused by civil engineering cross construction are reduced.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (10)
1. A penetrating piece and a water tank installation method are characterized by comprising the following steps:
step S1: positioning and adjusting the water tank and the penetrating piece, and hoisting the water tank and the penetrating piece to a position after the water tank and the penetrating piece are respectively adjusted to preset positions;
step S2: measuring the actual position of the water tank, and checking whether the deviation between the actual position of the water tank and the preset position of the water tank accords with a first preset deviation range;
measuring the actual position of the penetrating piece, and checking whether the deviation between the actual position of the penetrating piece and the preset position of the penetrating piece accords with a second preset deviation range;
step S3: performing welded junction assembly on the penetrating piece and the water tank, performing welded junction assembly on the reinforcing annular plate and the penetrating piece, and performing welded junction assembly on the reinforcing annular plate and the truncated cone;
step S4: welding the penetrating piece and the water tank, and carrying out nondestructive testing on the welding position of the penetrating piece and the water tank; welding the reinforcing annular plate and the penetrating piece, and carrying out nondestructive testing on the welding position of the reinforcing annular plate and the penetrating piece;
step S5: retesting the actual position of the water tank, and checking whether the deviation between the actual position of the water tank and the preset position of the water tank accords with a first preset deviation range or not;
retesting the actual position of the penetrating piece, and checking whether the deviation between the actual position of the penetrating piece and the preset position of the penetrating piece accords with a second preset deviation range or not;
step S6: welding the reinforcing annular plate and the truncated cone.
2. The penetration and tank installation method according to claim 1, further comprising the step of, prior to step S1:
step S0: and (3) performing welded junction assembly on the penetrating piece and the anchoring plate, welding the penetrating piece and the anchoring plate, and performing nondestructive testing on the welding position of the penetrating piece and the anchoring plate.
3. The penetration and tank installation method according to claim 1, wherein step S3 further comprises the steps of: and placing a balancing weight on the top of the water tank.
4. A penetration and tank installation method according to claim 3, wherein placing a weight on top of the tank comprises the steps of:
paving a plate on the top of the water tank; placing a balancing weight on the plate, wherein the weight of the balancing weight is 2.8 tons to 3.2 tons; and erecting guardrails around the water tank.
5. A penetration and method of installing a tank as claimed in claim 1, wherein,
measuring the actual position of the water tank comprises the following steps:
measuring position information of center points of four side plates of the water tank to measure the actual position of the water tank;
measuring the actual position of the penetration includes the steps of:
positional information of two points of the outer surface of the penetration is measured to measure the actual position of the penetration.
6. The penetration and tank installation method of claim 1, wherein the first preset deviation range includes a horizontal deviation range of ±5mm and a first elevation deviation range of ±5mm;
the second preset deviation range comprises an axis deviation range and a second elevation direction deviation range, wherein the axis deviation range is +/-30 mm, and the second elevation direction deviation range is +/-15 mm.
7. The penetration and tank installation method of claim 1, wherein retesting the actual location of the tank comprises the steps of:
measuring position information of center points of four side plates of the water tank to measure the actual position of the water tank;
the retesting of the actual position of the penetration includes the steps of:
positional information of two points of the outer surface of the penetration is measured to measure the actual position of the penetration.
8. The penetration and tank installation method according to claim 1, wherein step S4 further comprises:
argon filling protection is carried out on the back of a welded junction of the penetrating piece and the water tank, and argon arc priming is carried out; and welding the penetrating piece and the water tank in a sectional symmetrical welding mode.
9. The penetration and tank installation method according to claim 1, wherein step S4 further comprises:
argon filling protection is carried out on the back of the welded junction of the reinforcing annular plate and the penetrating piece, and argon arc priming is carried out; and welding the reinforcing annular plate and the penetrating piece in a sectional symmetrical welding mode.
10. The penetration and tank installation method according to claim 2, wherein step S0 further comprises:
argon filling protection is carried out on the back of a welded junction of the penetrating piece and the anchoring plate, and argon arc priming is carried out; and welding the penetrating piece and the anchoring plate in a sectional symmetrical welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310441448.6A CN116344078A (en) | 2023-04-23 | 2023-04-23 | Penetrating piece and water tank installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310441448.6A CN116344078A (en) | 2023-04-23 | 2023-04-23 | Penetrating piece and water tank installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116344078A true CN116344078A (en) | 2023-06-27 |
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ID=86880606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310441448.6A Pending CN116344078A (en) | 2023-04-23 | 2023-04-23 | Penetrating piece and water tank installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116344078A (en) |
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2023
- 2023-04-23 CN CN202310441448.6A patent/CN116344078A/en active Pending
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