CN113120760B

CN113120760B - Ultrahigh 600-ton fixed crane installation method

Info

Publication number: CN113120760B
Application number: CN202110411976.8A
Authority: CN
Inventors: 施洪慧; 张盛华; 刘欣颐; 洪霞
Original assignee: LINGXIN (NANTONG) HEAVY INDUSTRY CO LTD
Current assignee: LINGXIN (NANTONG) HEAVY INDUSTRY CO LTD
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2022-05-06
Anticipated expiration: 2041-04-16
Also published as: CN113120760A

Abstract

The invention discloses an ultrahigh 600-ton fixed crane installation method, wherein the ultrahigh 600-ton fixed crane is a special crane matched with wind power installation and shipping, and the specific installation of the ultrahigh 600-ton fixed crane at the wharf front edge comprises the following steps: step one, determining an installation position: determining the field installation position of the ultrahigh 600-ton fixed crane; step two: step three, on-site installation and hoisting, namely, component manufacturing, segmentation state and pre-assembly site; according to the ultrahigh 600-ton fixed crane installation method, the installation position is determined firstly, then the components are manufactured in a segmented mode, and then the components are installed on site, so that the ultrahigh is realized, the rotation is over 185 meters and 360 degrees, the integral installation operation of wind power equipment is facilitated, the integral installation process and the operation range of the ultrahigh large fan are greatly improved, and meanwhile, the safety performance during installation operation is improved.

Description

Ultrahigh 600-ton fixed crane installation method

Technical Field

The invention relates to the technical field of offshore wind turbine generator installation, in particular to an ultrahigh 600-ton fixed crane installation method.

Background

A600-ton fixed rotary crane is a special crane specially used for wind power installation and shipping. The equipment is arranged at the front edge of the wharf.

Compared with onshore wind power, offshore wind power in China has obvious advantages, offshore wind power is more stable in the onshore wind mode due to the fact that the sea level is higher than the land level, the utilization rate of a fan is high due to the fact that the offshore wind power is higher than the land level, the offshore wind power does not occupy the land and disturb residents, the offshore wind power is higher in unit installed capacity, the offshore wind power has the advantages of being more advantageous in the development of the offshore wind power, but the offshore wind power has the advantages of being higher in risk and higher in difficulty than onshore wind power development. The offshore wind turbine generator system is installed by a complete machine installation method and a split installation method, in order to complete installation operation more safely and efficiently, the whole wind turbine is installed in a complete machine module mode on the land in a factory area, then a scheme that a special wind turbine installation and transport ship is used for transporting the wind turbine generator to a designated sea area to carry out sinking type integral installation is particularly advanced and prominent, and the installation mode has a good market prospect. When the offshore wind turbine structure is installed on land, a special hoisting machine with large tonnage and ultrahigh capacity is required to be equipped for the high-altitude characteristic of the wind turbine structure, and the installed wind power equipment is required to be transported to a wind turbine installation and transportation ship. The traditional complete machine wind power installation crane cannot realize the problems of superelevation (more than 185 meters), 360-degree rotation and the like due to the limitation of the operation range, brings a lot of difficulties to the integral installation operation, and greatly influences the integral installation process of the fan.

Therefore, an ultrahigh 600-ton fixed crane installation method needs to be designed.

Disclosure of Invention

The invention aims to provide an ultrahigh 600-ton fixed crane installation method to solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an ultra-high 600 tons fixed hangs installation method, ultra-high 600 tons fixed hangs and is the supporting special hoist for wind-powered electricity generation installation and shipment, and this ultra-high 600 tons fixed hangs and installs in the pier frontier, and equipment parameter is as follows:

self-weight of the whole machine: 1596t + weight 850 t;

main hook: 600 tons/40 m to 100t/100 m;

auxiliary hook: 200t/73 m-100 t/90 m;

the highest point of the small-amplitude arm support; 201 m;

highest point of the propeller strut: 95 m;

the specific installation comprises the following steps:

step one, determining an installation position: determining the field installation position of the ultrahigh 600-ton fixed crane;

step two: component manufacturing, segmentation state and pre-assembly field:

1) the ultrahigh 600-ton fixed crane is manufactured in sections and then installed on site;

2) the segmentation state comprises:

a base;

a turntable;

a herringbone frame;

a boom;

step three, field installation and hoisting:

b1, firstly installing a basic base;

b2, confirming whether the base is firm;

b3, hoisting the turntable: integrally hoisting a rotary table with the weight of 364t to connect the rotary table with a flange seat on a base;

b4, hoisting a propeller strut: the crawler crane is matched with the propeller strut for installation, and after the propeller strut is hoisted, the mechanism is arranged on the turntable for the operation of the enclosure of the machine room;

b5, hoisting the arm support:

the cantilever crane is lifted by matching with the crawler crane, the angle and the position of the cantilever crane are adjusted by moving the crawler crane, the cantilever crane is installed, and the head of the cantilever crane is provided with a lifting hook for lifting and installing the whole fan.

The invention has the technical effects and advantages that: compared with the prior art, the ultrahigh 600-ton fixed crane installation method provided by the invention has the following advantages:

according to the ultrahigh 600-ton fixed crane installation method, the installation position is determined firstly, then the components are manufactured in a segmented mode, and then the components are installed on site, so that the ultrahigh is realized, the rotation is over 185 meters and 360 degrees, the integral installation operation of wind power equipment is facilitated, the integral installation process and the operation range of the ultrahigh large fan are greatly improved, and meanwhile, the safety performance during installation operation is improved.

Drawings

FIG. 1 is a schematic structural diagram of an ultra-high 600 ton fixed crane according to the present invention;

FIG. 2 is a schematic diagram of the site installation position of the ultra-high 600 ton fixed crane of the present invention;

fig. 3 is a schematic structural diagram of a flange seat of the ultra-high 600 ton fixed crane of the present invention;

FIG. 4 is a schematic structural diagram of a lower cylinder of a turntable of an ultrahigh 600-ton fixed crane according to the present invention;

FIG. 5 is a schematic structural diagram of a front section of a turntable of the ultra-high 600 ton fixed crane according to the present invention;

FIG. 6 is a schematic structural diagram of the middle section of the turntable of the ultra-high 600 ton fixed crane according to the present invention;

FIG. 7 is a schematic structural diagram of the tail end of a turntable of an ultra-high 600 ton fixed crane according to the present invention;

FIG. 8 is a structural schematic diagram of a fore support of a propeller strut of the ultra-high 600 ton fixed crane of the present invention;

FIG. 9 is a schematic structural diagram of a propeller strut of an ultra-high 600 ton fixed crane according to the present invention;

fig. 10 is a schematic structural diagram of an arm support of an ultrahigh 600-ton fixed crane according to the present invention;

FIG. 11 is a schematic view of an assembly site according to an assembly site map setting of the present invention;

FIG. 12 is a schematic view of the carousel assembly of the present invention;

FIG. 13 is a schematic illustration of the pre-assembly of a propeller strut and turntable of the present invention;

FIG. 14 is a schematic view of the respective suspension beams of the present invention installed and welded to the front brace and the rear tie rod of the A-bracket;

FIG. 15 is a schematic view of a man-jack point upper suspension point arrangement of the present invention;

FIG. 16 is a schematic illustration of a field layout of the present invention;

FIG. 17 is a schematic view of the rear brace of the propeller strut of the present invention shown fully articulated with the support;

FIG. 18 is a schematic view of a machine room test enclosure of the present invention;

FIG. 19 is a schematic illustration of the support cylinder flange mount hoist of the present invention;

FIG. 20 is a schematic view of the large bearing mount of the present invention with a rotational weight of 44 t;

FIG. 21 is a schematic view of the integral hoisting of a turntable structure of the present invention weighing 364 t;

FIG. 22 is a schematic view of a 2-track 400t crawler crane of the present invention, lifting the turntable in tandem;

FIG. 23 is a schematic representation of the terrestrial herringbone assembly of the present invention moved to the rear of the turntable;

FIG. 24 is a schematic view of a field for installing a trestle according to the invention;

FIG. 25 is a schematic illustration of the invention in operation in a machine room enclosure;

FIG. 26 is a schematic view of a rotary table before the boom is integrally hoisted according to the present invention;

FIG. 27 is a schematic diagram of the arm support of the present invention being pulled up and various limits being installed;

fig. 28 is a flow chart of the installation method of the ultrahigh 600-ton fixed crane of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 28 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 embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. 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.

As shown in fig. 1 to fig. 28, the invention provides an installation method of an ultra-high 600-ton fixed crane, the ultra-high 600-ton fixed crane is a special crane matched for wind power installation and delivery, the ultra-high 600-ton fixed crane is installed at the front edge of a wharf, and the equipment parameters are as follows:

self-weight of the whole machine: 1596t + weight 850 t;

main hook: 600 tons/40 m to 100t/100 m;

auxiliary hook: 200t/73 m-100 t/90 m;

the highest point of the small-amplitude arm support; 201 m;

highest point of the propeller strut: 95 m;

the specific installation comprises the following steps:

as shown in fig. 28, step one, determining the mounting position: determining the field installation position of the ultrahigh 600-ton fixed crane, as shown in fig. 2;

step two: component manufacturing, segmentation state and pre-assembly field:

1) the ultrahigh 600-ton fixed crane is manufactured in a sectional mode, and after the sectional manufacturing is finished, the member is transported to an installation site by a ship;

2) the segmentation state comprises:

a base: comprises a flange seat, as shown in figure 3;

a rotary table: the rotary table comprises a cylinder body, as shown in figure 4, a front section of a rotary table, as shown in figure 5, a middle section of the rotary table, as shown in figure 6, a tail end of the rotary table, and a weight box at the tail end of the rotary table, as shown in figure 7;

a-bracket: comprises a front propeller strut, shown in figure 8, and a rear propeller strut, shown in figure 9;

the arm support comprises a front section, a tail end and 3 middle sections, and is shown in figure 10;

3) and pre-assembling:

a1, setting an assembly site according to an assembly site map, as shown in figure 11;

a2, assembling the turnplate, as shown in figure 12:

a2-1, according to the requirements of final assembly, firstly pre-assembling the turntable, and folding the front, middle and tail sections of the turntable and the lower cylinder of the turntable on the final assembly site;

a2-2, drawing ground sample lines assembled by the rotary disc according to a field layout drawing, wherein the ground sample lines are cross lines of a rotation center, and the bed-jig assembled by the rotary disc is arranged according to the ground sample lines;

a2-3, hanging the lower cylinder body of the upper turntable and each section of the turntable one by one on a jig frame according to the requirement, wherein the turntable comprises a front section, a middle section and a tail section;

a2-4, leveling the upper plane of each segment by taking the flange surface of the cylinder under the turntable as a reference, aligning the upper plane with the central axis, repairing the allowance of the interface, and welding each segment into a whole;

a2-5, marking the boring position lines of the arm support and the propeller strut shaft hole and the mounting positioning lines of each mechanism by taking the flange surface of the cylinder under the turntable as a reference;

a2-6, pre-assembling each platform on the turntable, wherein the platform in figure 12 is not assembled temporarily after pre-assembling;

a2-7, boring a turntable support, wherein the bored holes are arm supports and propeller strut shaft holes;

a3, pre-assembling the herringbone frame on the turntable;

a3-1, as shown in FIG. 13, pre-assembling the propeller strut and the turntable, wherein the propeller strut has the total weight of 210 t;

a3-2, as shown in figure 13, at the position close to the edge of the assembled turntable, the front piece of the propeller strut is firstly hung up and hinged with the upper hinge points of two rear pull rods on the ground;

a3-3, after hinging, putting the lower part of the front support of the herringbone bracket on a jig frame, and welding respective hanging beams on the front support and the rear pull rod of the herringbone bracket according to the condition that a ladder platform in the middle of the herringbone bracket has no interference, as shown in figure 14;

a3-4, propeller strut lifting point upper lifting point arrangement, as shown in figure 15:

a3-5, the upper turntable of the propeller strut crane adopts a 2-track crane lifting and hanging mode to carry out site arrangement, and the site arrangement is shown in figure 16:

a3-6, a propeller strut lower hinge point:

1 SCC4000 (HDB) crawler crane is used, the arm length is 66m, the amplitude is 12m, and the hoisting load is 244 t;

a3-7, hinge point on the propeller strut:

1 SCC4000E (HDB) crawler crane with the arm length of 72m, the amplitude of 12m and the suspended load of 228 t;

a3-8, when the hinge point of the propeller strut is hinged with the support, removing the crawler crane of the lower cross beam, lifting the head of the propeller strut to the right position by the crawler crane for lifting the head of the propeller strut, and simultaneously releasing the rear pull rod of the propeller strut until the rear pull rod of the propeller strut is hinged with the support, as shown in figure 17;

a3-9, installing a connecting support rod on the propeller strut;

a3-10, a test enclosure of a machine room, as shown in figure 18, dismantling during hoisting;

step three, field installation and hoisting:

b1, firstly installing a basic base;

b2, confirming whether the foundation base is firm, and hoisting the flange seat of the supporting cylinder body according to the graph shown in FIG. 19: when the barrel is installed, a door on the barrel is positioned on the right side of the sea, and a large bearing with the rotating weight of 44t is hoisted, as shown in fig. 20;

b3, hoisting the turntable:

b3-1, as shown in FIGS. 21 and 22, lifting the turntable in tandem with 2 crawler cranes 400 t;

b3-2, moving the turntable construction above the fixed cylinder, and connecting the turntable with the large bearing through a bolt;

b3-3, loosening the hook of the crawler crane at the head of the turntable, and hoisting a rigging hook platform at the front part of the turntable;

b3-4, loosening a hook of a crawler crane at the tail of the turntable, and hoisting a rotating mechanism at the left side of the turntable;

b3-5, after the hoisting work is finished, rotating the turntable by 90 degrees;

b3-6, hoisting the rotating mechanism on the other side, hoisting main, hoisting auxiliary and amplitude-changing mechanism, and temporarily placing the rotating mechanism, the hoisting main, the hoisting auxiliary and the amplitude-changing mechanism on the central axis of the turntable to prevent the interference of the propeller strut during hoisting;

b3-7, hanging the arm support pin shaft and the propeller strut pin shaft on a frame on the edge of the mounting support on the upper rotating disc, and when the rotating disc structure is hung, dismounting the arm support pin shaft and the propeller strut pin shaft to reduce the weight;

b3-8, moving the herringbone shelf assembly on the ground to the tail part of the turntable to be hung, as shown in figure 23;

b4, hoisting a propeller strut:

b4-1, the prefabricated and formed propeller strut assembly weighs about 230t, and a site for hoisting the propeller strut is arranged, as shown in figure 24;

b4-2, when the propeller strut is lifted from the ground, if the deviation of the gravity center position is large, the lifting rigging rope needs to be adjusted, and the stability of the propeller strut when lifted off the ground is ensured as much as possible;

b4-3, after the man-like shelf is hoisted, the mechanism can be arranged on the turntable to perform the shed enclosing work of the machine room, as shown in figure 25;

b5, hoisting the arm support:

b5-1, before the integral hoisting of the arm support, firstly rotating the turntable to the position shown in the figure 26;

b5-2, assembling and molding the arm support 5 on the ground jig frame in front of the turntable according to the arm support installation angle in a large section;

b5-3, after scribing, boring each hinge point hole of the arm support, and mounting components such as a pulley on the head of the arm support;

b5-4, when the cantilever crane is installed, 1 400t of crawler cranes are respectively matched at the head and the tail of the cantilever crane, the cantilever crane is hoisted from the jig frame, and the angle and the position of the cantilever crane are adjusted by moving the crawler cranes;

b5-5, until the tail hinge point of the arm support is hinged with the turntable support, the head of the arm support is placed on the shelf;

b5-6, when the arm support is placed on the wharf in a segmented mode, the position can be properly adjusted, and the shelf for placing the head of the arm support is avoided;

b5-7, arranging a main hoisting mechanism and an auxiliary hoisting mechanism and a luffing mechanism;

b5-8, installing an electric room and a surrounding machine room;

b5-9, before electrifying, filling wheel lubricating oil/grease into each mechanism;

b5-10, winding the amplitude-variable steel wire rope, the main hoisting steel wire rope and the auxiliary hoisting steel wire rope after the mechanism acts;

b5-11, pulling up the arm support, debugging and installing various limits, as shown in FIG. 27;

b5-12, a lifting hook is arranged at the head of the arm support, and the whole fan is lifted and installed.

From the above, it can be seen that:

firstly, the installation position is determined, then the component is manufactured in a segmented mode, and after the segmented manufacturing is finished, the component is transported to an installation site through a ship, so that the component is convenient to manufacture and transport, and then the component is installed on the site, the super-high performance, the rotation of 185 meters or more and 360 degrees is realized, the integral installation operation is convenient, the integral installation process of the fan is greatly improved, and meanwhile, the safety performance during the installation operation is improved;

according to the requirements of final assembly, firstly, pre-assembling the rotary table, folding the front, middle and tail sections of the rotary table and the lower cylinder of the rotary table in a final assembly field, conveniently installing the rotary table through pre-assembling, and realizing 360-degree rotation of the fixed crane;

according to a field layout drawing, marking out ground sample lines assembled by the rotary table, wherein the ground sample lines are cross lines of a rotation center, arranging a jig assembled by the rotary table according to the ground sample lines, leveling the upper plane of each subsection to be horizontal by taking the flange surface of the lower cylinder body of the rotary table as a reference, and repairing the allowance of an interface after aligning to the central axis, so that each subsection is welded into a whole, and the installation precision is improved;

the upper turntable of the propeller strut crane adopts a lifting form of 2 crawler cranes, so that the installation process is improved;

the rotating mechanism, the hoisting main mechanism, the hoisting auxiliary mechanism and the luffing mechanism on the other side are temporarily placed at the central axis of the turntable to prevent interference during hoisting of the propeller strut; when the cantilever crane pin shaft and the bracket on the mounting support edge on the turntable are hoisted by the propeller strut pin shaft, the bracket needs to be detached to reduce the weight when the turntable structure is hoisted, and when the propeller strut is hoisted on the ground and the center of gravity position deviation is large, the hoisting rigging rope needs to be adjusted, so that the stability when the propeller strut is hoisted off the ground is ensured as much as possible, and the safety of the mounting operation is improved.

In conclusion, according to the method for installing the ultrahigh 600-ton fixed crane, the installation position is determined firstly, then the components are manufactured in a segmented mode and then installed on site, the ultrahigh is realized, the rotation of 185 meters or more and 360 degrees is realized, the integral installation operation of wind power equipment is facilitated, the integral installation process and the operation range of the ultrahigh large fan are greatly improved, and meanwhile the safety performance during the installation operation is improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The method for installing the ultrahigh 600-ton fixed crane is characterized in that the ultrahigh 600-ton fixed crane is a special crane matched with wind power installation and shipping, the ultrahigh 600-ton fixed crane is installed at the front edge of a wharf, and the equipment parameters are as follows:

self-weight of the whole machine: 1596t + weight 850 t;

main hook: 600 tons/40 m to 100t/100 m;

auxiliary hook: 200t/73 m-100 t/90 m;

the highest point of the small-amplitude arm support; 201 m;

highest point of the propeller strut: 95 m;

the specific installation comprises the following steps:

step two: component manufacturing, segmentation state and pre-assembly field:

2) the segmentation state comprises:

a base;

a turntable;

a herringbone frame;

a boom;

3) and pre-assembling:

a1, setting an assembly site according to an assembly site map;

a2, assembling by a turntable:

a2-4, leveling the upper plane of each segment of the turntable to be horizontal by taking the flange surface of the lower cylinder of the turntable as a reference, trimming the allowance of the interface after aligning with the central axis, and welding each segment into a whole;

a2-6, pre-assembling each platform on the turntable, wherein the platform is not assembled temporarily after being pre-assembled;

a2-7, boring a turntable support, wherein the bored holes are an arm support and a propeller strut shaft hole;

a3, pre-assembling the herringbone frame on the turntable;

a3-1, pre-assembling the propeller strut and the turntable, wherein the propeller strut is 210t in total weight;

a3-2, at the position close to the edge of the assembled turntable, the front piece of the propeller strut is firstly hoisted and hinged with the upper hinge points of the two rear pull rods on the ground;

a3-3, after hinging, putting the lower part of the front support of the herringbone bracket on a jig frame, and welding respective hanging beams on the front support and the rear pull rod of the herringbone bracket on the basis that a ladder platform in the middle of the herringbone bracket has no interference;

a3-4, arranging the hanging points on the herringbone frame;

a3-5, arranging a site by adopting a mode of lifting 2 crawler cranes on an upper turntable of the propeller strut crane;

a3-6, a propeller strut lower hinge point;

1 SCC4000 crawler crane is used, the arm length is 66m, the amplitude is 12m, and the hoisting load is 244 t;

a3-7, hinge point on the propeller strut:

1 SCC4000E crawler crane is adopted, the arm length is 72m, the amplitude is 12m, and the hoisting load is 228 t;

a3-8, after the hinge point of the propeller strut is hinged with the support, removing the crawler crane of the lower cross beam, lifting the head of the propeller strut to the right position by the crawler crane for lifting the head of the propeller strut, and simultaneously releasing the rear pull rod of the propeller strut until the rear pull rod of the propeller strut is hinged with the support;

a3-9, installing a connecting support rod on the propeller strut;

a3-10, dismantling the test enclosure of the machine room during hoisting;

step three, field installation and hoisting:

b1, firstly installing a basic base;

b2, confirming whether the base is firm; hoisting a flange seat of the supporting cylinder body: when the barrel is installed, a door on the barrel is positioned on the right side of the sea, and a large bearing with the rotating weight of 44t is hoisted;

b3-1, lifting the rotary table in front of and behind the rotary table by using 2 crawler cranes of 400 t;

b3-2, moving the turntable component above the fixed cylinder, and connecting the turntable with the large bearing through a bolt;

b3-6, hoisting the rotating mechanism on the other side, hoisting the main hoisting mechanism, the auxiliary hoisting mechanism and the luffing mechanism, and temporarily placing the hoisting mechanisms at the central axis of the turntable to prevent the interference of the propeller strut during hoisting;

b3-8, moving the herringbone shelf assembly on the ground to the tail part of the turntable to be hung,

b5, hoisting the arm support:

the cantilever crane is lifted through the cooperation of the crawler cranes, the angle and the position of the cantilever crane are adjusted through moving the crawler cranes, the cantilever crane is installed, and the head of the cantilever crane is provided with a lifting hook for lifting and installing the whole fan.