CN113458639A - 80MW marine generator base and welding process thereof - Google Patents

80MW marine generator base and welding process thereof Download PDF

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Publication number
CN113458639A
CN113458639A CN202110765623.8A CN202110765623A CN113458639A CN 113458639 A CN113458639 A CN 113458639A CN 202110765623 A CN202110765623 A CN 202110765623A CN 113458639 A CN113458639 A CN 113458639A
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China
Prior art keywords
middle wall
connecting plate
plate
wall
supporting
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CN202110765623.8A
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Chinese (zh)
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CN113458639B (en
Inventor
郭玉龙
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SUZHOU JUNENG GENERATOR COROLLARY EQUIPMENT CO Ltd
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SUZHOU JUNENG GENERATOR COROLLARY EQUIPMENT CO Ltd
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Publication of CN113458639A publication Critical patent/CN113458639A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K31/00Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
    • B23K31/02Processes 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426Fixtures for other work
    • B23K37/0435Clamps
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K15/00Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
    • H02K15/14Casings; Enclosures; Supports
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports

Abstract

The invention discloses a 80MW marine generator base and a welding process, comprising an upper base and a base, wherein the upper base is fixedly arranged on the base; the machine base comprises a base supporting frame, a middle wall supporting plate, a middle wall two-connecting plate, a middle wall three-connecting plate, a middle wall four-connecting plate, a middle wall five-connecting plate and a middle wall six-supporting plate; the upper engine base comprises a main engine base outer cover shell, a main engine base supporting frame, a top chassis, a side wall chassis, a middle wall I, a middle wall II, a middle wall III, a middle wall IV, a middle wall V and a middle wall VI. According to the 80MW marine generator base, the upper base and the base are separately welded and assembled, the middle walls and the middle wall supporting frameworks in the upper base and the base are respectively welded and assembled in six parts, the assembly welding method of each part is the same, vertical assembly is adopted, the operation is convenient, and the assembly size precision is high; parallel assembly welding is realized, the construction period is shortened, and the assembly welding efficiency is improved; the whole assembly welding difficulty of the machine base can be reduced, the welding deformation is reduced, and the assembly welding size precision is improved.

Description

80MW marine generator base and welding process thereof
Technical Field
The invention belongs to the technical field of forming and processing of extra-large special components, and particularly relates to an 80MW marine generator base. The invention also relates to a welding process of the 80MW marine generator base.
Background
In recent years, the Chinese power generation equipment manufacturing industry enters a rapid development stage, the power generation equipment production technology is greatly improved, the capacity is gradually improved, the localization degree is continuously improved, the Chinese power generation equipment manufacturing industry realizes the leap-type development, part of the product production technology reaches the international advanced level, and the continuous and healthy development of the Chinese power industry is powerfully supported. The GVPI technology (integral vacuum pressure impregnation insulation technology) is a comprehensive technology of multiple disciplines, and relates to the fields of multiple physical fields such as electromagnetic fields, temperature fields, fluid fields and stress fields and chemical reaction disciplines. The turbonator adopting the GVPI technology has the advantages of good electrical performance index, high reliability, long service life, short production period and the like. For a long time, the advanced electrical machinery manufacturing enterprises in the western world have locked and controlled the GVPI technology and insulation materials. Therefore, the development of the welding process of the 80MW marine generator base adopting the GVPI technology is provided under the background.
The base, as the biggest and heaviest component in the generator, needs to bear the rotor mass, and the quality of the assembly and welding of the base is of great importance to the whole generator. The machine base is easy to shrink and deform due to large welding amount, many welding seams are required to be airtight, and air and water cannot leak, and the technical requirement is high, so that the requirement on assembly and welding is very high, and a plurality of measures are required to control the assembly size and the welding deformation and prevent the generation of welding seam cracks.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects, the invention aims to provide the 80MW marine generator base, which solves the problems that in the prior art, the number of supporting rib plates in the base is small, the integral rigidity of the base is reduced, and the welding deformation is difficult to control.
The technical scheme is as follows: an 80MW marine generator base comprises an upper base and a base, wherein the upper base is fixedly arranged on the base; wherein the machine base comprises a base supporting frame, a middle wall supporting plate, a middle wall two connecting plate, a middle wall three connecting plate, a middle wall four connecting plate, a middle wall five connecting plate and a middle wall six supporting plate, the middle wall two connecting plate, the middle wall three connecting plate, the middle wall four connecting plate, the middle wall five connecting plate and the middle wall six supporting plate are all arranged along the vertical direction, the lower ends of the middle wall supporting plate, the middle wall two connecting plate, the middle wall three connecting plate, the middle wall four connecting plate, the middle wall five connecting plate and the middle wall six supporting plate are connected with the base supporting frame in a welding way, the middle wall supporting plate, the middle wall two connecting plate, the middle wall three connecting plate, the middle wall five connecting plate and the middle wall six supporting plate are arranged in parallel, the middle wall supporting plate, the middle wall two connecting plate, the middle wall three connecting plate, the middle wall four connecting plate, the middle wall five connecting plate and the middle wall six supporting plate are arranged along the length direction of the base supporting frame in sequence, be equipped with through-hole one on the well wall backup pad, be equipped with through-hole two on the two connecting plates of well wall, be equipped with through-hole three on the three connecting plates of well wall, be equipped with through-hole four on the four connecting plates of well wall, be equipped with through-hole five on the five connecting plates of well wall, be equipped with through-hole six in the six backup pads of well wall, through-hole one, through-hole two, through-hole three, through-hole four, through-hole five and through-hole six are circular to through-hole one, through-hole two, through-hole three, through-hole four, through-hole five and six coaxial settings of through-hole. According to the 80MW marine generator base, the upper base and the base are separately welded and assembled, the middle walls and the middle wall supporting frameworks in the upper base and the base are respectively welded and assembled in six parts, the assembly welding method of each part is the same, vertical assembly is adopted, the operation is convenient, and the assembly size precision is high; parallel assembly welding is realized, the construction period is shortened, and the assembly welding efficiency is improved; the whole assembly welding difficulty of the machine base can be reduced, the welding deformation is reduced, and the assembly welding size precision is improved.
Further, foretell marine generator frame of 80MW, the structure of well wall backup pad and six backup pads of well wall is the same to well wall backup pad and six backup pads of well wall symmetry set up, the upper end of well wall backup pad and six backup pads of well wall all sets up to the arch, the structure of two connecting plates of well wall, three connecting plates of well wall, four connecting plates of well wall and five connecting plates of well wall is the same, and two connecting plates of well wall, three connecting plates of well wall, four connecting plates of well wall and five connecting plates of well wall all include bottom sprag board one and arch connecting plate, the both ends of arch connecting plate respectively with one two relative lateral wall fixed connection of bottom sprag board, bottom sprag board one and base braced frame welded connection, the upper end of bottom sprag board one is equipped with semicircular groove one.
Further, foretell marine generator frame of 80MW, be equipped with two spliced poles one between the bottom sprag board of well wall backup pad and well wall two connecting plates one, two spliced poles symmetry sets up to two spliced poles one is located the both sides of well wall backup pad and well wall two connecting plates central axis respectively, be equipped with two spliced poles two between the bottom sprag board of well wall five connecting plates one and the six backup pads of well wall, two spliced pole bisymmetries set up to two spliced poles are located the both sides of well wall five connecting plates and well wall six backup pads central axis, two spliced poles one and two one-to-one settings of two spliced poles.
Further, the 80MW marine generator base is characterized in that the base support frame is fixedly provided with a first vertical support plate and a second vertical support plate, the first vertical support plate and the second vertical support plate are both arranged along the vertical direction, the first vertical support plate is positioned between a second middle wall connecting plate and a third middle wall connecting plate, the second vertical support plate is positioned between a fourth middle wall connecting plate and a fifth middle wall connecting plate, two first T-shaped connecting plates which are symmetrically arranged are arranged between the first bottom support plate and the first vertical support plate of the second middle wall connecting plate, the two first T-shaped connecting plates which are symmetrically arranged are respectively positioned at two sides of the axis of the second middle wall connecting plate, two second T-shaped connecting plates which are symmetrically arranged are arranged between the second vertical support plate and the first bottom support plate of the fifth middle wall connecting plate and are respectively positioned at two sides of the axis of the fifth middle wall connecting plate, two symmetrically arranged T-shaped connecting plates III are arranged between the bottom supporting plate I of the middle wall three-connecting plate and the bottom supporting plate I of the middle wall four-connecting plate, the two symmetrically arranged T-shaped connecting plates III are respectively positioned at two sides of the axis of the middle wall three-connecting plate, and the two symmetrically arranged T-shaped connecting plates I, the two symmetrically arranged T-shaped connecting plates II and the two symmetrically arranged T-shaped connecting plates III are arranged in a one-to-one correspondence manner.
Further, foretell 80MW marine generator frame, go up the frame and include main part frame outer casing, main part frame supporting frame, top machine case, lateral wall machine case, midwall I, midwall II, midwall III, midwall IV, midwall V and midwall VI, main part frame supporting frame is cuboid frame construction, main part frame outer casing cover is established on main part frame supporting frame's outer wall to the lower part of main part frame outer casing is open structure, main part frame supporting frame and base braced frame fixed connection, midwall backup pad, midwall II connecting plate, midwall III connecting plate, midwall IV connecting plate, midwall V connecting plate and midwall VI supporting plate are located main part frame outer casing and cover the scope of establishing, the fixed setting of top machine case is on the roof of main part frame outer casing outer wall, the lateral wall machine case is fixed to be set up on the curb plate of main part frame outer casing outer wall, the outer edges of the first middle wall, the second middle wall, the third middle wall, the fourth middle wall, the fifth middle wall and the sixth middle wall are fixedly connected with the inner wall of the outer housing of the main body base, the middle wall I, the middle wall II, the middle wall III, the middle wall IV, the middle wall V and the middle wall VI are sequentially arranged along the length direction of the outer housing of the main body machine base, and the middle wall I, the middle wall II, the middle wall III, the middle wall IV, the middle wall V and the middle wall VI are arranged in parallel, the middle wall I and the middle wall I are fixedly connected with the arched connecting plate of the supporting plate, the arched connecting plates of the middle wall II and the middle wall II connecting plates are fixedly connected, the arched connecting plates of the middle wall III and the middle wall III connecting plates are fixedly connected, the arched connecting plates of the middle wall four connecting plates and the middle wall four connecting plates are fixedly connected, the arched connecting plates of the middle wall five connecting plates and the middle wall five connecting plates are fixedly connected, and the arched connecting plates of the middle wall six supporting plates and the middle wall six supporting plates are fixedly connected.
Further, foretell marine generator frame of 80MW, be equipped with a set of spliced pole three between well wall two and the well wall three, the axis of a set of spliced pole three all sets up along the horizontal direction, be equipped with a set of spliced pole four between well wall four and the well wall five, the axis of a set of spliced pole four all sets up along the horizontal direction to a set of spliced pole four and the three one-to-one setting of a set of spliced pole.
Further, according to the 80MW marine generator base, the two end faces in the length direction of the outer housing of the main body base are provided with the seventh through hole which is a circular hole, and the seventh through hole is coaxially arranged with the first through hole, the second through hole, the third through hole, the fourth through hole, the fifth through hole and the sixth through hole.
Further, according to the 80MW marine generator base, the lower end face of the side wall case is provided with the group of I-beams which are arranged in parallel.
Furthermore, according to the 80MW marine generator base, two rectangular through holes are formed in the side wall, opposite to the side wall case, of the main body base outer casing, and a cover plate is arranged at the position of each rectangular through hole.
The invention also provides a welding process of the 80MW marine generator base, which comprises the following steps:
s1, firstly, welding an upper machine base;
s1-1, verifying a positioning reference surface welded on a main body base supporting frame by adopting a 3D omnibearing laser level;
s1-2, the outer housing of the main body base is composed of five rectangular plates, and the five rectangular plates are sequentially welded on the top surface and four side surfaces of the main body base supporting frame with the hexahedral structure;
s1-3, before the process of welding the middle wall I, firstly measuring the thickness of the middle wall I, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall I by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s1-4, before the welding process of the middle wall six, firstly measuring the thickness of the middle wall six, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall six by adopting an infrared laser range finder, and supporting in the welding process by adopting an anti-deformation device in the welding process;
s1-5, before the process of installing and welding the middle wall III, firstly measuring the thickness of the middle wall III, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall III by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s1-6, before the process of installing and welding the middle wall four, firstly measuring the thickness of the middle wall four, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall four by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s1-7, before the assembling and welding process of the middle wall II, firstly measuring the thickness of the middle wall II, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall II by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s1-8, before the process of installing and welding the middle wall five, firstly measuring the thickness of the middle wall five, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall five by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s2, welding the base;
s2-1, checking a positioning reference surface of the base supporting frame by adopting a 3D omnibearing laser level meter;
s2-2, before the assembling and welding process of the middle wall supporting plate, firstly measuring the thickness of the middle wall supporting plate, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall supporting plate by adopting an infrared laser range finder, and supporting in the welding process by adopting an anti-deformation device in the welding process;
s2-3, before the welding process of the six middle wall supporting plates, firstly measuring the thickness of the six middle wall supporting plates, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding positions of the six middle wall supporting plates by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s2-4, before the process of welding the first bottom support plate of the third middle-wall connecting plate, firstly measuring the thickness of the first bottom support plate of the third middle-wall connecting plate, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the first bottom support plate of the third middle-wall connecting plate by using an infrared laser range finder, and supporting the first bottom support plate of the third middle-wall connecting plate by using an anti-deformation device in the welding process;
s2-5, before the process of welding the first bottom support plate of the four middle-wall connecting plates, firstly measuring the thickness of the first bottom support plate of the four middle-wall connecting plates, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the first bottom support plate of the four middle-wall connecting plates by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s2-6, before the process of welding the first bottom support plate of the second middle-wall connecting plate, measuring the thickness of the first bottom support plate of the second middle-wall connecting plate, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the first bottom support plate of the second middle-wall connecting plate by using an infrared laser range finder, and supporting the welding position by using an anti-deformation device in the welding process;
s2-7, before the process of welding the bottom support plate I of the middle-wall five-connection plate, firstly measuring the thickness of the bottom support plate I of the middle-wall five-connection plate, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the bottom support plate I of the middle-wall five-connection plate by adopting an infrared laser range finder, and supporting in the welding process by adopting an anti-deformation device in the welding process;
s2-8, welding an upper arched connecting plate on a bottom supporting plate I which is respectively a middle wall two connecting plate, a middle wall three connecting plate, a middle wall four connecting plate and a middle wall five connecting plate;
s3, finally welding the upper base and the base together to form a base whole;
s3-1, assembling and welding the main body base supporting frame and the base supporting frame;
s3-2, welding the arched connecting plate on the middle wall three connecting plate with the middle wall three;
s3-3, welding the arched connecting plates on the four connecting plates of the middle wall with the four middle walls;
s3-4, welding the arched connecting plate on the connecting plate of the middle wall II with the middle wall II;
s3-5, welding the arched connecting plate on the connecting plate of the middle wall five and the middle wall five;
s3-6, welding a middle wall supporting plate and a middle wall I;
s3-7, welding of the six middle wall supporting plates and the six middle walls.
The technical scheme shows that the invention has the following beneficial effects: the 80MW marine generator base ensures that half-wrong combination variables of the upper base and the lower base, the size of the distance between the middle walls and the total height meet the expected requirements after the integral welding of the base is finished, and ensures the quality of the generator base; the whole base is welded by high-quality steel plates, so that the whole base is ensured to have enough strength, rigidity and air tightness. The welding process of the 80MW marine generator base mainly adopts an upper base and a lower base to separately assemble, weld, reshape, measure, butt joint and assemble, measures the thickness of the middle wall of each layer in the assembling and welding process, measures 8 points for each piece, collects data to form a curve diagram, adopts a reverse deformation device, formulates a supporting scheme, adopts a supporting structure, effectively controls the welding deformation and ensures the space size of the middle walls of the bases.
Drawings
FIG. 1 is a schematic structural view of a base according to the present invention;
FIG. 2 is a first schematic structural diagram of an upper housing according to the present invention;
fig. 3 is a second schematic structural diagram of the upper housing according to the present invention.
In the figure: an upper machine base 1, a main machine base outer cover shell 11, a main machine base supporting frame 12, a top machine base 13, a side wall machine base 14, I-shaped steel 141, a middle wall I15, a middle wall II 16, a middle wall III 17, a middle wall IV 18, a middle wall V19, a middle wall VI 110, a connecting column III 111, a connecting column IV 112, a through hole VII 113, a rectangular through hole 114, a cover plate 115, a machine base 2, a base supporting frame 20, a middle wall supporting plate 21 and a through hole I211, the connecting structure comprises a middle wall two connecting plate 22, a through hole two 220, a bottom supporting plate one 221, an arched connecting plate 222, a semicircular groove one 223, a connecting column one 224, a connecting column two 225, a middle wall three connecting plate 23, a through hole three 231, a middle wall four connecting plate 24, a through hole four 241, a middle wall five connecting plate 25, a through hole five 251, a middle wall six supporting plate 26, a through hole six 261, a vertical supporting plate one 27, a vertical supporting plate two 28, a T-shaped connecting plate one 29, a T-shaped connecting plate two 210 and a T-shaped connecting plate three 211.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples
The 80MW marine generator base comprises an upper base 1 and a base 2, wherein the upper base 1 is fixedly arranged on the base 2.
Wherein the housing 2 shown in FIG. 1 includes a base support frame 20, a middle wall support plate 21, a middle wall two connection plate 22, a middle wall three connection plate 23, a middle wall four connection plate 24, a middle wall five connection plate 25 and a middle wall six support plate 26, the middle wall support plate 21, the middle wall two connection plate 22, the middle wall three connection plate 23, the middle wall four connection plate 24, the middle wall five connection plate 25 and the middle wall six support plate 26 are all arranged in a vertical direction, and the lower end portions of the middle wall support plate 21, the middle wall two connection plate 22, the middle wall three connection plate 23, the middle wall four connection plate 24, the middle wall five connection plate 25 and the middle wall six support plate 26 are welded to the base support frame 20, the middle wall support plate 21, the middle wall two connection plate 22, the middle wall three connection plate 23, the middle wall four connection plate 24, the middle wall five connection plate 25 and the middle wall six support plate 26 are arranged in parallel, and the middle wall support plate 21, the middle wall support plate 22, the middle wall three connection plate 23, the middle wall four connection plate 24, the middle wall five connection plate 25 and the six support plate 26 are arranged in parallel, Middle wall two connecting plate 22, middle wall three connecting plate 23, middle wall four connecting plate 24, middle wall five connecting plate 25 and middle wall six support plates 26 set gradually along the length direction of base braced frame 20, be equipped with through-hole one 211 on the middle wall support plate 21, be equipped with through-hole two 220 on the middle wall two connecting plate 22, be equipped with through-hole three 231 on the middle wall three connecting plate 23, be equipped with through-hole four 241 on the middle wall four connecting plate 24, be equipped with through-hole five 251 on the middle wall five connecting plate 25, be equipped with through-hole six 261 on the middle wall six support plates 26, through-hole one 211, through-hole two 220, through-hole three 231, through-hole four 241, through-hole five 261 and through-hole six are circular to through-hole one 211, through-hole two 220, through-hole three 231, through-hole four 241, through-hole five 251 and through-hole six 261 are coaxial setting.
In the structure, the middle wall support plate 21 and the middle wall six support plate 26 have the same structure, the middle wall support plate 21 and the middle wall six support plate 26 are symmetrically arranged, the upper ends of the middle wall support plate 21 and the middle wall six support plate 26 are all arranged in an arch shape, the middle wall two connection plate 22, the middle wall three connection plate 23, the middle wall four connection plate 24 and the middle wall five connection plate 25 have the same structure, the middle wall two connection plate 22, the middle wall three connection plate 23, the middle wall four connection plate 24 and the middle wall five connection plate 25 all comprise a bottom support plate one 221 and an arch connection plate 222, two ends of the arch connection plate 222 are fixedly connected with two opposite side walls of the bottom support plate one 221 respectively, the bottom support plate one 221 is connected with the base support frame 20 in a welding manner, and the upper end of the bottom support plate one 221 is provided with a semicircular groove one 223. Two connecting columns I224 are arranged between the bottom supporting plates I221 of the middle wall supporting plate 21 and the middle wall two-connecting plate 22, the two connecting columns I224 are symmetrically arranged, the two connecting columns I224 are respectively positioned on two sides of the central axis of the middle wall supporting plate 21 and the central axis of the middle wall two-connecting plate 22, two connecting columns II 225 are arranged between the bottom supporting plate I221 of the middle wall five-connecting plate 25 and the middle wall six-supporting plate 26, the two connecting columns II 225 are symmetrically arranged, the two connecting columns II 225 are positioned on two sides of the central axis of the middle wall five-connecting plate 25 and the middle wall six-supporting plate 26, and the two connecting columns I224 and the two connecting columns II 225 are arranged in one-to-one correspondence.
In addition, a first vertical support plate 27 and a second vertical support plate 28 are fixedly arranged on the base support frame 20, the first vertical support plate 27 and the second vertical support plate 28 are both arranged along the vertical direction, the first vertical support plate 27 is positioned between the second middle wall connecting plate 22 and the third middle wall connecting plate 23, the second vertical support plate 28 is positioned between the fourth middle wall connecting plate 24 and the fifth middle wall connecting plate 25, two first symmetrically arranged T-shaped connecting plates 29 are arranged between the first bottom support plate 221 of the second middle wall connecting plate 22 and the first vertical support plate 27, the two first symmetrically arranged T-shaped connecting plates 29 are respectively positioned at two sides of the axis of the second middle wall connecting plate 22, two second symmetrically arranged T-shaped connecting plates 210 are arranged between the first bottom support plate 221 of the second vertical support plate 28 and the fifth middle wall connecting plate 25, the two symmetrically arranged T-shaped connecting plates 210 are respectively positioned at two sides of the axis of the fifth middle wall connecting plate 25, two symmetrically arranged T-shaped connecting plates three 211 are arranged between the bottom supporting plate one 221 of the middle wall three-connecting plate 23 and the bottom supporting plate one 221 of the middle wall four-connecting plate 24, the two symmetrically arranged T-shaped connecting plates three 211 are respectively positioned at two sides of the axis of the middle wall three-connecting plate 23, and the two symmetrically arranged T-shaped connecting plates one 29, the two symmetrically arranged T-shaped connecting plates two 210 and the two symmetrically arranged T-shaped connecting plates three 211 are arranged in a one-to-one correspondence manner.
As shown in fig. 2 and 3, the upper housing 1 includes a main housing outer casing 11, a main housing support frame 12, a top housing 13, a side wall housing 14, a first middle wall 15, a second middle wall 16, a third middle wall 17, a fourth middle wall 18, a fifth middle wall 19 and a sixth middle wall 110, the main housing support frame 12 is a rectangular frame structure, the main housing outer casing 11 covers the outer wall of the main housing support frame 12, and the lower portion of the main housing outer casing 11 is an opening structure, the main housing support frame 12 is fixedly connected to the base support frame 20, the middle wall support plate 21, the second middle wall connection plate 22, the third middle wall connection plate 23, the fourth middle wall connection plate 24, the fifth middle wall connection plate 25 and the sixth middle wall support plate 26 are located in the range covered by the main housing outer casing 11, the top housing 13 is fixedly disposed on the top plate of the outer wall of the main housing outer casing 11, the side wall chassis 14 is fixedly arranged on a side plate of an outer wall of the main body base outer housing 11, outer edges of the first middle wall 15, the second middle wall 16, the third middle wall 17, the fourth middle wall 18, the fifth middle wall 19 and the sixth middle wall 110 are fixedly connected with an inner wall of the main body base outer housing 11, the first middle wall 15, the second middle wall 16, the third middle wall 17, the fourth middle wall 18, the fifth middle wall 19 and the sixth middle wall 110 are sequentially arranged along the length direction of the main body base outer housing 11, the first middle wall 15, the second middle wall 16, the third middle wall 17, the fourth middle wall 18, the fifth middle wall 19 and the sixth middle wall 110 are arranged in parallel, the first middle wall 15 is fixedly connected with an arch connecting plate 222 of a first middle wall supporting plate 21, the second middle wall 16 is fixedly connected with an arch connecting plate 222 of a second middle wall connecting plate 22, the third middle wall 17 is fixedly connected with an arch connecting plate 222 of a third middle wall connecting plate 23, the fourth middle wall 18 is fixedly connected with an arch connecting plate 222 of a fourth middle wall 24, the middle wall five 19 is fixedly connected with the arched connecting plate 222 of the middle wall five connecting plate 25, and the middle wall six 110 is fixedly connected with the arched connecting plate 222 of the middle wall six supporting plate 26.
A group of connecting columns three 111 is arranged between the middle wall two 16 and the middle wall three 17, the axes of the group of connecting columns three 111 are all arranged along the horizontal direction, a group of connecting columns four 112 is arranged between the middle wall four 18 and the middle wall five 19, the axes of the group of connecting columns four 112 are all arranged along the horizontal direction, and the group of connecting columns four 112 and the group of connecting columns three 111 are arranged in a one-to-one correspondence manner.
In addition, two end faces in the length direction of the main body base outer cover 11 are respectively provided with a through hole seven 113, the through hole seven 113 is a circular hole, and the through hole seven 113 is coaxially arranged with the through hole one 211, the through hole two 220, the through hole three 231, the through hole four 241, the through hole five 251 and the through hole six 261. A group of i-beams 141 is arranged on the lower end face of the side wall chassis 14, and the group of i-beams 141 are arranged in parallel. Two rectangular through holes 114 are formed in the side wall of the main body base outer cover 11 opposite to the side wall case 14, and a cover plate 115 is arranged at the position of each rectangular through hole 114.
Based on the structure, the welding process of the 80MW marine generator base comprises the following steps:
s1, firstly, welding the upper machine base 1;
s1-1, verifying the positioning reference plane welded by the main body base supporting frame 12 by adopting a 3D omnibearing laser level meter;
s1-2, the main body base outer cover 11 is composed of five rectangular plates, and the five rectangular plates are welded on the top surface and four side surfaces of the main body base supporting frame 12 with a hexahedral structure in sequence;
s1-3, before the assembling and welding process of the middle wall I15, firstly measuring the thickness of the middle wall I15, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall I15 by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s1-4, before the welding process of the six middle walls 110, firstly measuring the thickness of the six middle walls 110, measuring 8 points, collecting data to form a curve graph, then accurately positioning the welding position of the six middle walls 110 by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s1-5, before the welding process of the middle wall III 17, firstly measuring the thickness of the middle wall III 17, measuring 8 points, collecting data to form a curve graph, then accurately positioning the welding position of the middle wall III 17 by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s1-6, before the welding process of the middle wall four 18, firstly measuring the thickness of the middle wall four 18, measuring 8 points, collecting data to form a curve graph, then accurately positioning the welding position of the middle wall four 18 by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s1-7, before the assembling and welding process of the second middle wall 16, firstly measuring the thickness of the second middle wall 16, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the second middle wall 16 by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s1-8, before the welding process of the middle wall five 19, firstly measuring the thickness of the middle wall five 19, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall five 19 by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s2, welding the base 2;
s2-1, checking the positioning reference plane of the base support frame 20 by adopting a 3D omnibearing laser level;
s2-2, before the assembling and welding process of the middle wall support plate 21, firstly measuring the thickness of the middle wall support plate 21, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall support plate 21 by adopting an infrared laser range finder, and supporting in the welding process by adopting an anti-deformation device in the welding process;
s2-3, before the welding process of the six middle wall supporting plates 26, firstly measuring the thickness of the six middle wall supporting plates 26, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding positions of the six middle wall supporting plates 26 by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s2-4, before the bottom supporting plate I221 of the middle wall three-connecting plate 23 is welded, firstly measuring the thickness of the bottom supporting plate I221 of the middle wall three-connecting plate 23, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the bottom supporting plate I221 of the middle wall three-connecting plate 23 by adopting an infrared laser range finder, and supporting in the welding process by adopting an anti-deformation device in the welding process;
s2-5, before the bottom support plate I221 of the middle wall four-connection plate 24 is welded, firstly measuring the thickness of the bottom support plate I221 of the middle wall four-connection plate 24, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the bottom support plate I221 of the middle wall four-connection plate 24 by adopting an infrared laser range finder, and supporting in the welding process by adopting an anti-deformation device in the welding process;
s2-6, before the bottom supporting plate I221 of the middle wall two-connecting plate 22 is welded, firstly measuring the thickness of the bottom supporting plate I221 of the middle wall two-connecting plate 22, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the bottom supporting plate I221 of the middle wall two-connecting plate 22 by adopting an infrared laser range finder, and supporting in the welding process by adopting an anti-deformation device in the welding process;
s2-7, before the process of welding the first bottom supporting plate 221 of the five middle-wall connecting plate 25, firstly measuring the thickness of the first bottom supporting plate 221 of the five middle-wall connecting plate 25, measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the first bottom supporting plate 221 of the five middle-wall connecting plate 25 by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s2-8, and finally welding an upper arched connecting plate 222 on the bottom supporting plate I221 of the middle wall two-connecting plate 22, the middle wall three-connecting plate 23, the middle wall four-connecting plate 24 and the middle wall five-connecting plate 25 respectively;
s3, finally welding the upper machine base 1 and the machine base 2 together to form a whole machine base;
s3-1, assembling and welding the main body base supporting frame 12 and the base supporting frame 20;
s3-2, welding the arched connecting plate 222 on the middle wall three-connecting plate 23 and the middle wall three 17;
s3-3, welding the arched connecting plate 222 on the middle wall four connecting plate 24 and the middle wall four 18;
s3-4, welding the arched connecting plate 222 on the middle wall II connecting plate 22 and the middle wall II 16;
s3-5, welding the arched connecting plate 222 on the middle wall five connecting plate 25 and the middle wall five 19;
s3-6, welding the middle wall one supporting plate 21 and the middle wall one 15;
s3-7, welding of the six middle wall support plates 26 and the six middle walls 110.
The 80MW marine generator base of the invention achieves the main technical and economic indexes:
(1) total length of stand 7284 + -5 mm
(2) Frame width 3674 +/-4 mm
(3) The height of the stand 4439 +/-4 mm
(4) The coaxiality of each middle wall is less than or equal to 6mm
The foregoing is only a preferred embodiment of the present invention, and it should be noted that modifications can be made by those skilled in the art without departing from the principle of the present invention, and these modifications should also be construed as the protection scope of the present invention.

Claims (10)

1. The utility model provides a marine generator frame of 80MW which characterized in that: the device comprises an upper base (1) and a base (2), wherein the upper base (1) is fixedly arranged on the base (2);
the base (2) comprises a base supporting frame (20), a middle wall supporting plate (21), a middle wall two connecting plate (22), a middle wall three connecting plate (23), a middle wall four connecting plate (24), a middle wall five connecting plate (25) and a middle wall six supporting plate (26), wherein the middle wall supporting plate (21), the middle wall two connecting plate (22), the middle wall three connecting plate (23), the middle wall four connecting plate (24), the middle wall five connecting plate (25) and the middle wall six supporting plate (26) are arranged in the vertical direction, the lower end parts of the middle wall supporting plate (21), the middle wall two connecting plate (22), the middle wall three connecting plate (23), the middle wall four connecting plate (24), the middle wall five connecting plate (25) and the middle wall six supporting plate (26) are connected with the base supporting frame (20) in a welding mode, and the middle wall supporting plate (21), the middle wall two connecting plate (22), the middle wall three connecting plate (23), The middle wall four-connecting plate (24), the middle wall five-connecting plate (25) and the middle wall six-supporting plate (26) are arranged in parallel, the middle wall supporting plate (21), the middle wall two-connecting plate (22), the middle wall three-connecting plate (23), the middle wall four-connecting plate (24), the middle wall five-connecting plate (25) and the middle wall six-supporting plate (26) are sequentially arranged along the length direction of the base supporting frame (20), a first through hole (211) is formed in the middle wall supporting plate (21), a second through hole (220) is formed in the middle wall two-connecting plate (22), a third through hole (231) is formed in the middle wall three-connecting plate (23), a fourth through hole (241) is formed in the middle wall four-connecting plate (24), a fifth through hole (251) is formed in the middle wall five-connecting plate (25), a sixth through hole (261) is formed in the middle wall six-supporting plate (26), the first through hole (211), the second through hole (220), Through-hole three (231), through-hole four (241), through-hole five (251) and through-hole six (261) are all circular to through-hole one (211), through-hole two (220), through-hole three (231), through-hole four (241), through-hole five (251) and through-hole six (261) coaxial setting.
2. The 80MW marine generator mount according to claim 1, wherein: the middle wall supporting plate (21) and the middle wall six supporting plate (26) are identical in structure, the middle wall supporting plate (21) and the middle wall six supporting plate (26) are symmetrically arranged, the upper ends of the middle wall supporting plate (21) and the middle wall six supporting plate (26) are all arranged in an arch shape, the middle wall two connecting plate (22), the middle wall three connecting plate (23), the middle wall four connecting plate (24) and the middle wall five connecting plate (25) are identical in structure, the middle wall two connecting plate (22), the middle wall three connecting plate (23), the middle wall four connecting plate (24) and the middle wall five connecting plate (25) respectively comprise a bottom supporting plate I (221) and an arch connecting plate (222), two ends of the arch connecting plate (222) are fixedly connected with two opposite side walls of the bottom supporting plate I (221), and the bottom supporting plate I (221) is connected with the base supporting frame (20) in a welding mode, the upper end part of the first bottom supporting plate (221) is provided with a first semicircular groove (223).
3. The 80MW marine generator mount according to claim 3, wherein: two connecting columns one (224) are arranged between the bottom supporting plate one (221) of the middle wall supporting plate (21) and the middle wall two-connecting plate (22), the two connecting columns one (224) are symmetrically arranged, the two connecting columns one (224) are respectively located on two sides of the central axis of the middle wall supporting plate (21) and the central axis of the middle wall two-connecting plate (22), two connecting columns two (225) are arranged between the bottom supporting plate one (221) of the middle wall five-connecting plate (25) and the central axis of the middle wall six-supporting plate (26), the two connecting columns two (225) are symmetrically arranged, the two connecting columns two (225) are located on two sides of the central axis of the middle wall five-connecting plate (25) and the central axis of the middle wall six-supporting plate (26), and the two connecting columns one (224) and the two connecting columns two (225) are arranged in one-to-one correspondence.
4. The 80MW marine generator mount according to claim 3, wherein: a first vertical supporting plate (27) and a second vertical supporting plate (28) are fixedly arranged on the base supporting frame (20), the first vertical supporting plate (27) and the second vertical supporting plate (28) are arranged along the vertical direction, the first vertical supporting plate (27) is positioned between a second middle wall connecting plate (22) and a third middle wall connecting plate (23), the second vertical supporting plate (28) is positioned between a fourth middle wall connecting plate (24) and a fifth middle wall connecting plate (25), two first T-shaped connecting plates (29) are symmetrically arranged between a first bottom supporting plate (221) of the second middle wall connecting plate (22) and the first vertical supporting plate (27), the two first T-shaped connecting plates (29) are respectively positioned at two sides of the axis of the second middle wall connecting plate (22), and two second T-shaped connecting plates (210) are symmetrically arranged between the first bottom supporting plates (221) of the second vertical supporting plate (28) and the fifth middle wall connecting plate (25), two T type connecting plates (210) that the symmetry set up are located the both sides of five connecting plate (25) axes of well wall respectively, be equipped with two T type connecting plates three (211) that the symmetry set up between bottom sprag board one (221) of three connecting plate (23) of well wall and bottom sprag board one (221) of four connecting plate (24) of well wall, two T type connecting plates three (211) that the symmetry set up are located the both sides of three connecting plate (23) axes of well wall respectively, two T type connecting plates one (29) that the symmetry set up, two T type connecting plates two (210) that the symmetry set up and three (211) one-to-one settings of T type connecting plate that two symmetries set up.
5. The 80MW marine generator mount according to claim 4, wherein: the upper machine base (1) comprises a main machine base outer housing (11), a main machine base supporting frame (12), a top machine base (13), a side wall machine base (14), a middle wall I (15), a middle wall II (16), a middle wall III (17), a middle wall IV (18), a middle wall V (19) and a middle wall VI (110), wherein the main machine base supporting frame (12) is of a cuboid frame structure, the main machine base outer housing (11) is covered on the outer wall of the main machine base supporting frame (12), the lower part of the main machine base outer housing (11) is of an opening structure, the main machine base supporting frame (12) is fixedly connected with a base supporting frame (20), a middle wall supporting plate (21), a middle wall II connecting plate (22), a middle wall III connecting plate (23), a middle wall IV connecting plate (24), a middle wall V connecting plate (25) and a middle wall VI supporting plate (26) are positioned in the range covered by the main machine base outer housing (11), the top case (13) is fixedly arranged on a top plate of the outer wall of the main body base outer housing (11), the side wall case (14) is fixedly arranged on a side plate of the outer wall of the main body base outer housing (11), the outer edges of the first middle wall (15), the second middle wall (16), the third middle wall (17), the fourth middle wall (18), the fifth middle wall (19) and the sixth middle wall (110) are fixedly connected with the inner wall of the main body base outer housing (11), the first middle wall (15), the second middle wall (16), the third middle wall (17), the fourth middle wall (18), the fifth middle wall (19) and the sixth middle wall (110) are sequentially arranged along the length direction of the main body base outer housing (11), the first middle wall (15), the second middle wall (16), the third middle wall (17), the fourth middle wall (18), the fifth middle wall (19) and the sixth middle wall (110) are arranged in parallel, the first middle wall (15) is fixedly connected with an arch connecting plate (222) of a supporting plate (21) of the first middle wall, the middle wall II (16) is fixedly connected with the arched connecting plate (222) of the middle wall II connecting plate (22), the middle wall III (17) is fixedly connected with the arched connecting plate (222) of the middle wall III connecting plate (23), the middle wall IV (18) is fixedly connected with the arched connecting plate (222) of the middle wall IV connecting plate (24), the middle wall V (19) is fixedly connected with the arched connecting plate (222) of the middle wall V connecting plate (25), and the middle wall VI (110) is fixedly connected with the arched connecting plate (222) of the middle wall VI supporting plate (26).
6. The 80MW marine generator mount according to claim 5, wherein: a group of connecting columns three (111) is arranged between the middle wall two (16) and the middle wall three (17), the axes of the group of connecting columns three (111) are arranged along the horizontal direction, a group of connecting columns four (112) is arranged between the middle wall four (18) and the middle wall five (19), the axes of the group of connecting columns four (112) are arranged along the horizontal direction, and the group of connecting columns four (112) and the group of connecting columns three (111) are arranged in a one-to-one correspondence manner.
7. The 80MW marine generator mount according to claim 5, wherein: the main body frame outer cover shell (11) is characterized in that through holes seven (113) are formed in two end faces in the length direction, the through holes seven (113) are circular holes, and the through holes seven (113), through holes I (211), through holes II (220), through holes III (231), through holes IV (241), through holes V (251) and through holes VI (261) are coaxially arranged.
8. The 80MW marine generator mount according to claim 5, wherein: the lower end face of the side wall chassis (14) is provided with a group of I-shaped steel (141), and the group of I-shaped steel (141) is arranged in parallel.
9. The 80MW marine generator mount according to claim 5, wherein: two rectangular through holes (114) are formed in the side wall, opposite to the side wall cabinet (14), of the main machine base outer cover shell (11), and a cover plate (115) is arranged at the position of each rectangular through hole (114).
10. The welding process of the 80MW marine generator base is characterized in that: the method comprises the following steps:
s1, firstly, welding the upper machine base (1);
s1-1, verifying the welding positioning reference surface of the main body base supporting frame (12) by adopting a 3D omnibearing laser level meter;
s1-2, the outer housing (11) of the main body base is composed of five rectangular plates which are welded on the top surface and four side surfaces of the main body base supporting frame (12) with a hexahedral structure in sequence;
s1-3, before the welding process of the middle wall I (15), firstly measuring the thickness of the middle wall I (15), measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall I (15) by adopting an infrared laser range finder, and supporting in the welding process by adopting an anti-deformation device in the welding process;
s1-4, before the welding process of the six (110) middle walls, firstly measuring the thickness of the six (110) middle walls, measuring 8 points, collecting data to form a curve graph, then accurately positioning the welding position of the six (110) middle walls by adopting an infrared laser range finder, and supporting in the welding process by adopting an anti-deformation device in the welding process;
s1-5, before the welding process of the middle wall III (17), firstly measuring the thickness of the middle wall III (17), measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall III (17) by adopting an infrared laser range finder, and supporting in the welding process by adopting an anti-deformation device in the welding process;
s1-6, before the welding process of the middle wall four (18), firstly measuring the thickness of the middle wall four (18), measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall four (18) by adopting an infrared laser range finder, and supporting in the welding process by adopting an anti-deformation device in the welding process;
s1-7, before the welding process of the middle wall II (16), firstly measuring the thickness of the middle wall II (16), measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall II (16) by adopting an infrared laser range finder, and supporting in the welding process by adopting an anti-deformation device in the welding process;
s1-8, before the welding process of the middle wall five (19), firstly measuring the thickness of the middle wall five (19), measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall five (19) by adopting an infrared laser range finder, and supporting in the welding process by adopting a reverse deformation device in the welding process;
s2, welding the base (2);
s2-1, verifying the positioning reference surface of the base supporting frame (20) by adopting a 3D omnibearing laser level;
s2-2, before the welding process of the middle wall support plate (21), firstly measuring the thickness of the middle wall support plate (21), measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding position of the middle wall support plate (21) by adopting an infrared laser range finder, and supporting in the welding process by adopting an anti-deformation device in the welding process;
s2-3, before the welding process of the six middle wall supporting plates (26), firstly measuring the thickness of the six middle wall supporting plates (26), measuring 8 points, collecting data to form a curve diagram, then accurately positioning the welding positions of the six middle wall supporting plates (26) by using an infrared laser range finder, and supporting in the welding process by using an anti-deformation device in the welding process;
s2-4, before the bottom support plate I (221) of the middle wall three-connection plate (23) is welded, firstly measuring the thickness of the bottom support plate I (221) of the middle wall three-connection plate (23), measuring 8 points, collecting data to form a curve graph, then accurately positioning the welding position of the bottom support plate I (221) of the middle wall three-connection plate (23) by using an infrared laser range finder, and supporting in the welding process by using an inverse deformation device in the welding process;
s2-5, before the bottom support plate I (221) of the middle wall four-connection plate (24) is welded, firstly measuring the thickness of the bottom support plate I (221) of the middle wall four-connection plate (24), measuring 8 points, collecting data to form a curve graph, then accurately positioning the welding position of the bottom support plate I (221) of the middle wall four-connection plate (24) by using an infrared laser range finder, and supporting in the welding process by using an inverse deformation device in the welding process;
s2-6, before the bottom support plate I (221) of the middle wall two-connection plate (22) is welded, firstly measuring the thickness of the bottom support plate I (221) of the middle wall two-connection plate (22), measuring 8 points, collecting data to form a curve graph, then accurately positioning the welding position of the bottom support plate I (221) of the middle wall two-connection plate (22) by using an infrared laser range finder, and supporting in the welding process by using an inverse deformation device in the welding process;
s2-7, before the process of welding the bottom support plate I (221) of the middle-wall five-connection plate (25), firstly measuring the thickness of the bottom support plate I (221) of the middle-wall five-connection plate (25), measuring 8 points, collecting data to form a curve graph, then accurately positioning the welding position of the bottom support plate I (221) of the middle-wall five-connection plate (25) by adopting an infrared laser range finder, and supporting in the welding process by adopting an inverse deformation device in the welding process;
s2-8, and finally welding an upper arched connecting plate (222) on a bottom supporting plate I (221) which is respectively a middle wall two connecting plate (22), a middle wall three connecting plate (23), a middle wall four connecting plate (24) and a middle wall five connecting plate (25);
s3, finally welding the upper base (1) and the base (2) together to form a base whole;
s3-1, assembling and welding the main body base supporting frame (12) and the base supporting frame (20) at first;
s3-2, welding the arched connecting plate (222) on the middle wall three-connecting plate (23) and the middle wall three (17);
s3-3, welding the arched connecting plate (222) on the middle wall four connecting plate (24) and the middle wall four (18);
s3-4, welding the arched connecting plate (222) on the middle wall II connecting plate (22) and the middle wall II (16);
s3-5, welding an arched connecting plate (222) on the middle wall five connecting plate (25) and the middle wall five (19);
s3-6, welding a middle wall supporting plate (21) and a middle wall I (15);
s3-7, welding of the six middle wall supporting plates (26) and the six middle walls (110).
CN202110765623.8A 2021-07-07 2021-07-07 80MW marine generator base and welding process thereof Active CN113458639B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115055859A (en) * 2022-07-28 2022-09-16 大连船用柴油机有限公司 Assembling and welding method for large-scale low-speed marine diesel engine base

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