CN114833482A - Construction method and auxiliary device for lining stainless steel plate of large-diameter tower equipment - Google Patents
Construction method and auxiliary device for lining stainless steel plate of large-diameter tower equipment Download PDFInfo
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- CN114833482A CN114833482A CN202210061480.7A CN202210061480A CN114833482A CN 114833482 A CN114833482 A CN 114833482A CN 202210061480 A CN202210061480 A CN 202210061480A CN 114833482 A CN114833482 A CN 114833482A
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- 239000010935 stainless steel Substances 0.000 title claims abstract description 41
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 41
- 238000010276 construction Methods 0.000 title claims abstract description 38
- 238000003466 welding Methods 0.000 claims abstract description 69
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000007689 inspection Methods 0.000 claims abstract description 11
- 238000005553 drilling Methods 0.000 claims abstract description 4
- 238000003825 pressing Methods 0.000 claims abstract description 4
- 238000005096 rolling process Methods 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 23
- 239000010959 steel Substances 0.000 claims description 23
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 claims description 4
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 238000005457 optimization Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/728—Onshore wind turbines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a construction method of a large-diameter tower equipment lining stainless steel plate, which comprises the following steps: s1, drawing lines on the stainless steel plate according to the designed layout, and drilling plug welding holes according to the positions of the drawing lines; s2, arc pressing is carried out on the stainless steel plate by a plate rolling machine according to the size of the tank body, and a lining is manufactured; s3, placing the lining into the tank body, and uniformly and neatly laying and welding the lining on the inner side of the tank wall; s4, installing a connecting pipe at the joint of the inner lining; s5, paving a lining in a base consisting of the tank wall and the tank bottom; s6, inspecting each section of tank body and the base, and after the inspection is qualified, carrying out hoisting combination; as optimization, the plug welding holes are distributed in a plum blossom shape, the hole diameter is 8mm, the hole pitch is 300mm, and the edge pitch is 150 mm. According to the construction method and the auxiliary device for the stainless steel plate lined in the large-diameter tower equipment, the plug welding holes distributed in a plum blossom shape are formed, and meanwhile, a symmetrical welding method is adopted during plug welding of the plug welding holes, so that the deformation of a stainless steel sheet is effectively reduced, and the lining and the tank body are more attached.
Description
Technical Field
The invention relates to the technical field of lining welding, in particular to a construction method and an auxiliary device for a stainless steel lining of large-diameter tower equipment.
Background
The construction of the stainless steel lining of the pulp tower of the pulp mill has different construction methods, such as: some adopt 'integral inversion'; the construction of the tower body is finished by firstly adopting a normal installation method, erecting a platform on the tower seat and then inversely installing the platform; after the whole construction of some slurry towers is finished, a scaffold construction lining is built in the slurry tower; some carbon steel cylinder sections are constructed by adopting sectional sections, frames are built in the sections, and stainless steel is lined from top to bottom.
The construction method needs long-time high-altitude operation of workers, is high in danger, works at high altitude, leads nerves to be always in a tight state, is easy to influence the construction quality, and simultaneously the existing lining welding method is poor in air tightness and safety, so that a construction system for manufacturing the wood chip bin is provided to solve the problem.
Disclosure of Invention
In order to overcome the problems of construction danger and poor welding quality, the invention aims to provide a construction method and an auxiliary device for lining a stainless steel plate of large-diameter tower equipment, which have the functions of safe construction and good welding quality.
The invention adopts the following technical scheme for realizing the technical purpose: a construction method of a large-diameter tower equipment lining stainless steel plate comprises the following steps:
s1, drawing lines on the stainless steel plate according to the designed layout, and drilling plug welding holes according to the positions of the drawing lines;
s2, arc pressing is carried out on the stainless steel plate by a plate rolling machine according to the size of the tank body, and a lining is manufactured;
s3, placing the lining into the tank body, and uniformly and neatly laying and welding the lining on the inner side of the tank wall;
s4, installing a connecting pipe at the joint of the inner lining;
s5, paving a lining in a base consisting of the tank wall and the tank bottom;
and S6, inspecting each section of tank body and the base, and after the inspection is qualified, carrying out hoisting combination.
As optimization, the plug welding holes are distributed in a plum blossom shape, the hole diameter is 8mm, the hole pitch is 300mm, the edge pitch is 150mm, and deformation of the stainless steel sheet can be effectively reduced by adopting symmetrical welding when the plug welding holes are subjected to plug welding.
For optimization, the lining is detected by adopting a sample plate to ensure the accuracy of the radian, and the surface of the roller of the plate bending machine is wrapped by a rubber sleeve.
Preferably, the lining adopts a butt welding method in the vertical direction and adopts an overlapping welding method in the horizontal and circumferential directions, and the overlapping amount is 30 mm.
As optimization, the inspection of the tank body and the base comprises tightness detection and compression resistance inspection, and the lining welding adopts an argon arc welding method. The welding of the plug welding hole is the welding of dissimilar steel, and welding is carried out according to the requirement of the step 3.
The auxiliary device comprises a tank wall, a tank bottom, a lining and a connecting pipe, wherein an angle steel is welded at the joint of the tank wall and the tank bottom, an inspection pipe opening is formed between the angle steel and the tank wall, and an inner reinforcing ring is arranged at the butt joint of the lining.
As optimization, the inner lining of the tank bottom is lapped above the angle steel, and the inner lining of the tank wall is lapped above the inner lining on the surface of the tank bottom;
preferably, the inner reinforcing ring is sleeved on the outer side of the connecting pipe, and the inner reinforcing ring is positioned between the lining and the tank wall.
Preferably, the angle steel is respectively welded with the tank wall and the tank bottom in an intermittent fixed mode, the lining, the angle steel, the tank bottom and the tank wall in an intermittent fixed mode, and the overlapping portion of the lining and the lining is welded in a continuous sealing mode.
And optimally, the material of the inner reinforcing ring is the same as that of the lining, the thickness of the inner reinforcing ring is 6mm or 8mm according to the size of the connecting pipe, and the outer diameter of the inner reinforcing ring is selected according to the standard of the reinforcing ring.
The invention has the following beneficial effects:
1. according to the construction method and the auxiliary device for the stainless steel plate lined in the large-diameter tower equipment, the plug welding holes distributed in a plum blossom shape are formed, and meanwhile, a symmetrical welding method is adopted during plug welding of the plug welding holes, so that the deformation of a stainless steel sheet is effectively reduced, and the lining and the tank body are more attached.
2. According to the construction method and the auxiliary device for the stainless steel plate of the large-diameter tower equipment lining, the angle steel is adopted for transitional connection, so that the welding quality of the tank bottom, the tank wall and the lining is ensured, and the air tightness and the safety of the stainless steel plate, a base body and a pipe orifice are improved.
3. According to the construction method and the auxiliary device for the stainless steel plate of the large-diameter tower equipment lining, the inner reinforcing ring is arranged at the butt joint position of the lining, so that the welding quality of the connecting pipe and the lining is improved, and the welding quality of the lining and the lining is also improved.
4. According to the construction method and the auxiliary device for the large-diameter tower equipment lining stainless steel plate, the tank body and the base are assembled after being processed and detected, so that the overhead working time is reduced, the safety is improved, and the cost is saved.
Drawings
FIG. 1 is a layout diagram of plug welding holes in the construction method of the lining stainless steel plate of large-diameter tower equipment.
FIG. 2 is a layout diagram of an inner reinforcing ring of an auxiliary device for the construction method of lining a stainless steel plate in large-diameter tower equipment.
FIG. 3 is a layout diagram of angle steel of an auxiliary device for the construction method of lining a stainless steel plate in large-diameter tower equipment.
In the figure: 1. a tank wall; 2. the tank bottom; 3. angle steel; 4. inspecting the pipe orifice; 5. a liner; 6. an inner reinforcement ring; 7. and (6) taking over.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, a construction method of a large-diameter tower equipment lining stainless steel plate includes the following steps:
s1, drawing lines on the stainless steel plate according to the designed layout, and drilling plug welding holes according to the positions of the drawing lines;
s2, carrying out arc pressing on the stainless steel plate by using a plate rolling machine according to the size of the tank body to prepare a lining 5;
s3, placing the lining 5 into the tank body, and uniformly and neatly laying and welding the lining on the inner side of the tank wall 1;
s4, installing the adapter tube 7 at the joint of the lining 5;
s5, paving an inner liner 5 in a base consisting of the tank wall 1 and the tank bottom 2;
s6, inspecting each section of the tank body and the base, and after the tank body and the base are inspected to be qualified, polishing and hoisting combination are needed.
The hoisting combination is specifically that the base is firstly erected on the air ground and fixed, a section of the tank body is transported to the upper part of the base through a crane and is welded with the base, the next section of the tank body is transported to the air ground disc in the welding process, and the final inspection is carried out to wait for the completion of welding;
and after the welding is finished, the inspected tank body is conveyed to the position above the tank body to be welded, and the welding is continued, so that the welding is finished.
The plug welding holes are distributed in a plum blossom shape, the hole diameter is 8mm, the hole pitch is 300mm, the edge distance is 150mm, and deformation of the stainless steel sheet can be effectively reduced by adopting symmetrical welding when the plug welding holes are subjected to plug welding.
The lining 5 is to adopt the model to detect for guaranteeing the accuracy of radian, and the veneer reeling machine roller face is wrapped up with the rubber sleeve, prevents the carburization.
The lining 5 adopts a butt welding method in the vertical direction and adopts an overlap welding method in the horizontal and circumferential directions, the overlap amount is 30mm, and the tightness and the pressure resistance can be realized.
The detection of the tank body and the base comprises tightness detection and compression resistance detection, the welding of the lining 5 adopts an argon arc welding method, the welding of the plug welding hole is dissimilar steel welding, and welding is carried out according to the requirement of step 3.
Example 2
Referring to figures 2-3 of the drawings,
an auxiliary device for a construction method of a large-diameter tower equipment lining stainless steel plate comprises a tank wall 1, a tank bottom 2, a lining 5 and a connecting pipe 7, wherein angle steel 3 is welded at the joint of the tank wall 1 and the tank bottom 2, an inspection pipe opening 4 is arranged between the angle steel 3 and the tank wall 1, and an inner reinforcing ring 6 is arranged at the butt joint of the lining 5.
The inner liner 5 of the tank bottom 2 is lapped above the angle steel 3, and the inner liner 5 of the tank wall 1 is lapped above the inner liner 5 on the surface of the tank bottom 2;
the inner reinforcing ring 6 is sleeved outside the connecting pipe 7, and the inner reinforcing ring 6 is positioned between the inner lining 5 and the tank wall 1.
The angle steel 3 is respectively welded with the tank wall 1 and the tank bottom 2 in an intermittent fixed mode, the lining 5 and the angle steel 3, the tank bottom 2 and the tank wall 1 are welded in an intermittent fixed mode, and the lap joint part of the lining 5 and the lining 5 is welded in a continuous sealing mode;
the intermittent fixed welding position is marked as A in the drawing, and the continuous sealing welding position is marked as B in the drawing;
the model of the angle steel 3 is L50mm multiplied by 50 mm;
the angle steel 3 is adopted for transition connection, so that the welding quality of the tank bottom 2, the tank wall 1 and the lining 5 is ensured, and the air tightness and the safety of the stainless steel plate, the base body and the pipe orifice are improved.
The material of interior reinforcement circle 6 is the same with inside lining 5 material, and 6mm or 8mm are selected according to takeover 7 size to its thickness, and the external diameter is selected according to the reinforcement circle standard, has improved takeover 7 and inside lining 5's welding quality, has also improved inside lining 5 and inside lining 5's welding quality.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A construction method for a large-diameter tower equipment lining stainless steel plate is characterized by comprising the following steps:
s1, drawing lines on the stainless steel plate according to the designed layout, and drilling plug welding holes according to the positions of the drawing lines;
s2, carrying out arc pressing on the stainless steel plate by using a plate rolling machine according to the size of the tank body to prepare a lining (5);
s3, placing the lining (5) into the tank body, and uniformly and neatly laying and welding the lining on the inner side of the tank wall (1);
s4, installing a connecting pipe (7) at the joint of the lining (5);
s5, paving an inner liner (5) in a base consisting of the tank wall (1) and the tank bottom (2);
and S6, inspecting each section of tank body and the base, and after the inspection is qualified, carrying out hoisting combination.
2. The construction method of the large-diameter tower equipment lining stainless steel plate as claimed in claim 1, wherein the construction method comprises the following steps: the plug welding holes are distributed in a plum blossom shape, the hole diameter is 8mm, the hole distance is 300mm, the edge distance is 150mm, and symmetric welding is adopted when the plug welding holes are plug welded.
3. The construction method of the large-diameter tower equipment lining stainless steel plate as claimed in claim 1, wherein the construction method comprises the following steps: and in order to ensure the accuracy of the radian, the lining (5) needs to be detected by a sample plate, and the surface of the roller of the plate bending machine is wrapped by a rubber sleeve.
4. The construction method of the large-diameter tower equipment lining stainless steel plate as claimed in claim 1, wherein the construction method comprises the following steps: the inner liner (5) adopts a butt welding method in the vertical direction and adopts an overlapping welding method in the horizontal and circumferential directions, and the overlapping amount is 30 mm.
5. The construction method of the stainless steel plate lining of the large-diameter tower equipment as claimed in claim 1, is characterized in that: the inspection of the tank body and the base comprises tightness detection and pressure resistance inspection, and the welding of the lining (5) adopts an argon arc welding method.
6. The utility model provides an auxiliary device of major diameter tower class equipment inside lining stainless steel construction method, includes tank wall (1), tank bottom (2), inside lining (5), takeover (7), its characterized in that: the steel tank is characterized in that angle steel (3) is welded at the joint of the tank wall (1) and the tank bottom (2), an inspection pipe orifice (4) is arranged between the angle steel (3) and the tank wall (1), and an inner reinforcing ring (6) is arranged at the butt joint of the lining (5).
7. The auxiliary device for the construction method of the stainless steel plate lining of the large-diameter tower equipment as claimed in claim 6, wherein: the inner lining (5) of the tank bottom (2) is lapped above the angle steel (3), and the inner lining (5) of the tank wall (1) is lapped above the inner lining (5) on the surface of the tank bottom (2);
the inner reinforcing ring (6) is sleeved on the outer side of the connecting pipe (7), and the inner reinforcing ring (6) is positioned between the lining (5) and the tank wall (1).
8. The auxiliary device for the construction method of the stainless steel plate lining of the large-diameter tower equipment as claimed in claim 7, wherein: angle steel (3) adopt respectively with tank wall (1), tank bottoms (2) to be interrupted the fixed welding, inside lining (5) and angle steel (3), tank bottoms (2), tank wall (1) adopt to be interrupted the fixed welding, and the overlap joint part of inside lining (5) and inside lining (5) adopts continuous seal welding.
9. The auxiliary device for the construction method of the stainless steel plate lining of the large-diameter tower equipment as claimed in claim 7, wherein: the material of interior reinforcement circle (6) is the same with inside lining (5) material, and its thickness selects 6mm or 8mm according to takeover (7) size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210061480.7A CN114833482A (en) | 2022-01-19 | 2022-01-19 | Construction method and auxiliary device for lining stainless steel plate of large-diameter tower equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210061480.7A CN114833482A (en) | 2022-01-19 | 2022-01-19 | Construction method and auxiliary device for lining stainless steel plate of large-diameter tower equipment |
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| CN114833482A true CN114833482A (en) | 2022-08-02 |
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| CN202210061480.7A Pending CN114833482A (en) | 2022-01-19 | 2022-01-19 | Construction method and auxiliary device for lining stainless steel plate of large-diameter tower equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115178985A (en) * | 2022-08-29 | 2022-10-14 | 重庆水轮机厂有限责任公司 | Assembly welding method for turbine overflow surface wear plate |
| CN115415693A (en) * | 2022-08-26 | 2022-12-02 | 吴欢 | Construction method of flexible lining for internal sealing of pressure-bearing device |
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| CN112077535A (en) * | 2020-08-27 | 2020-12-15 | 绍兴市奥达化工设备有限公司 | Pressing process for stainless steel lined composite seal head |
-
2022
- 2022-01-19 CN CN202210061480.7A patent/CN114833482A/en active Pending
Patent Citations (4)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115415693A (en) * | 2022-08-26 | 2022-12-02 | 吴欢 | Construction method of flexible lining for internal sealing of pressure-bearing device |
| CN115415693B (en) * | 2022-08-26 | 2024-01-23 | 吴欢 | Construction method of flexible lining for sealing interior of pressure-bearing device |
| CN115178985A (en) * | 2022-08-29 | 2022-10-14 | 重庆水轮机厂有限责任公司 | Assembly welding method for turbine overflow surface wear plate |
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