Hoisting device of offshore photovoltaic platform

Abstract

The utility model discloses a lifting device for an offshore photovoltaic platform. The lifting device comprises a lifting frame, four hoops, a set of upper sling, a set of lower sling and two fulcrum seat steel wire ropes. The lifting frame comprises a top frame, four lifting lugs and two pairs of front and rear lifting rods; the top frame is a rectangular grid frame, and the four lifting lugs are fixed to the top faces of the four corners of the top frame. The two pairs of front and rear suspenders are fixed on the bottom surface of the top frame and are symmetrically positioned on the front and rear sides of the fulcrum seats at the bottoms of the two front and rear supporting legs; the four hoops are mounted in the middles of four fulcrum seats of the photovoltaic platform; one set of upper sling comprises four upper steel wire ropes connected between the four lifting lugs and the hoisting equipment; the lower sling comprises four pairs of lower steel wire ropes connected between the lower ends of the two pairs of front and rear suspenders and the four hoops; and the two fulcrum seat steel wire ropes are connected between the hoops at the bottoms of the two front and rear support legs. According to the utility model, the installation efficiency of the photovoltaic platform can be effectively improved, and the offshore operation time is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hoisting device of offshore photovoltaic platform. BACKGROUND

[0002] Offshore photovoltaic is a new ocean energy utilization mode, and offshore photovoltaic is to construct a solar photovoltaic power generation system in a nearshore, beach or other marine environment, and becomes a new darling in the field of solar energy utilization by virtue of advantages of rich resources and high efficiency. The current offshore photovoltaic structure has a floating type and a pile foundation fixed type. The photovoltaic platform unit of the pile foundation fixed type structure comprises one photovoltaic platform and four piles arranged on the sea. The photovoltaic platform is a truss structure and comprises a photovoltaic platform body and four legs connected to the bottom of the photovoltaic platform body, the bottom of each leg is provided with a fulcrum seat, and the top surface of the photovoltaic platform body is provided with a photovoltaic panel. The height of the front two legs is greater than that of the rear two legs. The top of each of the four piles is provided with a connecting seat for one-to-one corresponding butt joint with the four fulcrum seats of the photovoltaic platform, so that the photovoltaic platform body is inclined by 15 degrees in a manner that the front is high and the rear is low. The hoisting method of the existing photovoltaic platform needs to reserve four hoisting holes on the photovoltaic platform body corresponding to the four fulcrum seats (without installing the photovoltaic panel), and four steel wires are one-to-one corresponding lowered from the four hoisting holes to the four fulcrum seats through four lifting lugs on a rectangular lifting frame for hoisting after being connected, and the photovoltaic panel at the four hoisting holes is supplemented on the sea after the four fulcrum seats of the photovoltaic platform are butt jointed with the four piles, which not only increases the sea operation time, but also has great risk of high-altitude manual work in the marine environment. CONTENT OF THE UTILITY MODEL

[0003] The utility model aims at overcoming the defects of the prior art and providing a hoisting device of offshore photovoltaic platform, which can effectively improve the installation efficiency of the photovoltaic platform, greatly reduce the sea operation time and has high safety.

[0004] The utility model aims at overcoming the defects of the prior art and providing a hoisting device of offshore photovoltaic platform, which can effectively improve the installation efficiency of the photovoltaic platform, greatly reduce the sea operation time and has high safety.

[0005] The photovoltaic platform comprises a photovoltaic platform body, two front legs connected to the front bottom of the photovoltaic platform body, two rear legs connected to the rear bottom of the photovoltaic platform body and four inverted round table-shaped fulcrum seats one-to-one connected to the bottom of the two front legs and the bottom of the two rear legs and one-to-one corresponding butt jointed with the top connecting seats of the four piles; the height of the front leg is greater than that of the rear leg; the hoisting device comprises a lifting frame, four hoops, a set of upper lifting ropes, a set of lower lifting ropes and two fulcrum seat steel wires; wherein,

[0006] The lifting frame comprises a top frame, four lifting lugs, two pairs of front lifting rods and two pairs of rear lifting rods;

[0007] The top frame is a rectangular grid frame. The width of the top frame is greater than the width of the main body of the photovoltaic platform, and the length of the top frame is less than the length of the main body of the photovoltaic platform but greater than the lateral spacing of the support points of the photovoltaic platform.

[0008] The four lifting lugs are fixed to the top surface of the four corners of the top frame in a corresponding manner;

[0009] The length of the front hanger is greater than the vertical distance between the front end of the top surface and the rear end of the top surface of the photovoltaic platform body, but less than the vertical distance between the front end of the top surface and the support seat of the photovoltaic platform body; the two pairs of front hangers are fixed to the bottom surface of the top frame one by one and are located on both sides in front of the support seats at the bottom of the two front legs one by one and symmetrically.

[0010] The length of the rear suspension rod is the same as the length of the front suspension rod; the two pairs of rear suspension rods are fixed one-to-one on the bottom surface of the top frame and are located one-to-one and symmetrically on both sides behind the support bases at the bottom of the two rear outriggers.

[0011] The longitudinal spacing between a pair of front hangers and a pair of rear hangers is equal to the width L of the main body of the photovoltaic platform + 0.5m to 3m;

[0012] Four clamps are installed in the middle of the four support points of the photovoltaic platform in a one-to-one correspondence; each clamp includes two semi-circular clamp plates and two sets of fastening bolts; a first connecting ring is fixed to the middle of the outer surface of one clamp plate, and a second connecting ring and a third connecting ring are fixed at intervals to the middle of the outer surface of the other clamp plate.

[0013] A set of upper slings includes four upper wire ropes. The lower ends of the four upper wire ropes are connected to the four lifting lugs of the gantry, and the upper ends of the four upper wire ropes are connected to the main hook of the lifting equipment.

[0014] A set of lower slings includes four pairs of lower wire ropes. The upper ends of the four pairs of lower wire ropes are connected one-to-one to the lower ends of the two pairs of front booms and the two pairs of rear booms. The lower ends of the four pairs of lower wire ropes are connected one-to-one to the second connecting ring and the third connecting ring of the four clamps.

[0015] The length of the fulcrum steel wire rope is adapted to the longitudinal spacing of the fulcrum of the photovoltaic platform; one end of the two fulcrum steel wire ropes is connected to the first connecting ring of the clamp on the fulcrum at the bottom of the two front outriggers, and the other end of the two fulcrum steel wire ropes is connected to the first connecting ring of the clamp on the fulcrum at the bottom of the two rear outriggers.

[0016] The hoisting device of the offshore photovoltaic platform has the following characteristics:

[0017] The hoisting device of the offshore photovoltaic platform has the following characteristics:

[0018] The hoisting device of the offshore photovoltaic platform has the following characteristics:

[0019] The hoisting device of the offshore photovoltaic platform has the following characteristics: BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a side view of the offshore photovoltaic platform of the present utility model;

[0021] Figure 2 is a side view of the hoisting device of the offshore photovoltaic platform of the present utility model;

[0022] Figure 3 is a top view of the hoisting device of the offshore photovoltaic platform of the present utility model;

[0023] Figure 4 is a bottom view of the hoisting device of the offshore photovoltaic platform of the present utility model;

[0024] Figure 5 is a structure diagram of the hoop in the hoisting device of the offshore photovoltaic platform of the present utility model;

[0025] Figure 6 is a side view of the hoisting device of the offshore photovoltaic platform of the present utility model when performing step two in hoisting the photovoltaic platform;

[0026] Figure 7is the side view of the hoisting device of the offshore photovoltaic platform in step three when hoisting the photovoltaic platform;

[0027] Figure 8 is the side view of the hoisting device of the offshore photovoltaic platform in step four when hoisting the photovoltaic platform;

[0028] Figure 9 is the side view of the hoisting device of the offshore photovoltaic platform in step six when hoisting the photovoltaic platform. DETAILED DESCRIPTION

[0029] The offshore photovoltaic platform hoisting device of the present application will be further described below in conjunction with the drawings.

[0030] Please refer to Figures 1 to 5 , the offshore photovoltaic platform hoisting device of the present application is used to hoist and transport the photovoltaic platform 1 to the four-axis center connecting line rectangular pile foundation 100 set on the sea; the photovoltaic platform 1 comprises a photovoltaic platform main body 10, two front supporting legs 11 connected to the front bottom of the photovoltaic platform main body 10, two rear supporting legs 12 connected to the rear bottom of the photovoltaic platform main body 10, and four inverted round table-shaped supporting point seats 13 one-to-one corresponding connected to the bottom of the two front supporting legs 11 and the bottom of the two rear supporting legs 12 and one-to-one corresponding connected to the connecting seat at the top of the four pile foundations 100; the height of the front supporting leg 11 is greater than the height of the rear supporting leg 12 (see Figure 1 ).

[0031] The offshore photovoltaic platform hoisting device of the present application comprises a hanger 2, four hoops 3, a set of upper hoisting ropes, a set of lower hoisting ropes, and two supporting point seat steel wires 6.

[0032] The hanger 2 comprises a top frame 20, four hanger ears 21, two pairs of front hoisting rods 22, and two pairs of rear hoisting rods 23; wherein,

[0033] The top frame 20 is a rectangular grid frame and comprises two horizontal beams, two vertical beams, a plurality of vertical supporting rods crossing between the two horizontal beams, and a plurality of horizontal supporting rods crossing between the two vertical beams; the width of the top frame 20 is greater than the width of the photovoltaic platform main body 10, and the length of the top frame 20 is less than the length of the photovoltaic platform main body 10 but greater than the horizontal distance between the supporting point seats 13 of the photovoltaic platform 1;

[0034] The four hanger ears 21 are fixed one-to-one corresponding on the top surface of the four corner portions of the top frame 20;

[0035] The length of the front hanger 22 is greater than the vertical distance between the front end of the top surface of the photovoltaic platform body 10 and the rear end of the top surface, but less than the vertical distance between the front end of the top surface of the photovoltaic platform body 10 and the fulcrum seat 13; the two pairs of front hangers 22 are fixed on the bottom surface of the top frame 20 one by one and are located on the front sides of the two fulcrum seats 13 at the bottom of the two front legs 11 one by one and symmetrically; the lower end of each of the two pairs of front hangers 22 is fixed with a lifting ring; the lower part of each of the two pairs of front hangers 22 is further connected with the bottom surface of the top frame 20 with a front inclined support rod 220;

[0036] The length of the rear hanger 23 is the same as that of the front hanger 22; the two pairs of rear hangers 23 are fixed on the bottom surface of the top frame 20 one by one and are located on the rear sides of the two fulcrum seats 13 at the bottom of the two rear legs 12 one by one and symmetrically; the lower end of each of the two pairs of rear hangers 23 is fixed with a lifting ring; the lower part of each of the two pairs of rear hangers 23 is connected with the bottom surface of the top frame 20 with a rear inclined support rod 230;

[0037] The longitudinal distance between the pair of front hangers 22 and the pair of rear hangers 23 is equal to the width L+0.5m~3m of the photovoltaic platform body 10.

[0038] The four hoops 3 are installed on the middle part of the four fulcrum seats 13 of the photovoltaic platform 1 one by one; each hoop 3 includes two half-circular hoop plates 30 and two sets of fastening bolts 34; the outer surface of one hoop plate 30 is fixed with a first connecting ring 31 in the middle part, and the outer surface of the other hoop plate 30 is fixed with a second connecting ring 32 and a third connecting ring 33 at intervals; the fastening bolts 34 can fasten the two hoop plates 30 when the two hoop plates 30 are embraced on the fulcrum seat 13.

[0039] A set of upper lifting ropes includes four upper steel wires 4, the lower ends of which are connected to the four lifting lugs 21 of the lifting frame 2 one by one, and the upper ends of the four upper steel wires 4 are connected to the main hook of the hoisting equipment.

[0040] A set of lower lifting ropes includes four pairs of lower steel wires 5, the upper ends of which are connected to the lifting rings at the lower ends of the two pairs of front hangers 22 and the lifting rings at the lower ends of the two pairs of rear hangers 23 one by one through shackles, and the lower ends of the four pairs of lower steel wires 5 are connected to the second connecting rings 32 and the third connecting rings 33 of the four hoops 3 one by one through shackles.

[0041] The length of the fulcrum seat steel wire 6 is adapted to the longitudinal distance of the fulcrum seat 13 of the photovoltaic platform 1; one end of the two fulcrum seat steel wires 6 is connected to the first connecting ring 31 of the hoop 3 on the fulcrum seat 13 at the bottom of the two front legs 11 one by one, and the other end of the two fulcrum seat steel wires 6 is connected to the first connecting ring 31 of the hoop 3 on the fulcrum seat 13 at the bottom of the two rear legs 12 one by one.

[0042] The longitudinal distance between the pair of front lifting rods 22 and the pair of rear lifting rods 23 is equal to the width L+0.5m~3m of the photovoltaic platform body 10, so as to avoid the shaking of the photovoltaic platform 1 from impacting the front lifting rods 22 and the rear lifting rods 23 when hoisting; the two fulcrum seat steel wires 6 can constrain the distance between the fulcrum seat 13 at the bottom of the two front supporting legs 11 and the fulcrum seat 13 at the bottom of the two rear supporting legs 12; when hoisting the photovoltaic platform 1 formally, the two fulcrum seat steel wires 6 can bear the horizontal pulling force in the front-rear direction of the photovoltaic platform 1 that the fulcrum seat 13 receives.

[0043] Please refer to Figures 6 to 9 , when the hoisting device of the offshore photovoltaic platform is used for hoisting the photovoltaic platform, two hangers 2, two sets of upper hoisting ropes and two sets of lower hoisting ropes are adopted.

[0044] When the hoisting device of the offshore photovoltaic platform is used for hoisting the photovoltaic platform, the following steps are included:

[0045] Step one, the lower ends of the four upper steel wires 4 of the first set of upper hoisting ropes are connected on the four lifting lugs 21 on the first hanger 2 one by one, and the upper ends of the four upper steel wires 4 of the first set of upper hoisting ropes are connected with the main hook of the land crane 200, and then the upper ends of the four pairs of lower steel wires 5 of the first set of lower hoisting ropes are connected on the lower ends of the two pairs of front lifting rods 22 and the lower ends of the two pairs of rear lifting rods 23 of the first hanger 2 one by one;

[0046] Step two, a hoop 3 is installed on each of the four fulcrum seats 13 of the photovoltaic platform 1, and then two fulcrum seat steel wires 6 are installed on the four hoops 3 (see Figure 6 );

[0047] Step three, after the land crane 200 lowers the first hanger 2 to a proper height, the lower ends of the four pairs of lower steel wires 5 of the first set of lower hoisting ropes are connected on the second connecting ring 32 and the third connecting ring 33 of the hoops 3 on the four fulcrum seats 13 of the photovoltaic platform 2 one by one (see Figure 7 );

[0048] Step four, after the photovoltaic platform 1 is hoisted and moved to the upper side of the transport barge 300 by the land crane 200 and then is lowered (see Figure 8 ), the photovoltaic platform 1 is placed on the transport barge 300, and then the connection between the lower ends of the four pairs of lower steel wires 5 of the first set of lower hoisting ropes and the hoops 3 on the four fulcrum seats 13 of the photovoltaic platform 1 is released, so that the first set of lower hoisting ropes, the first hanger and the first set of upper hoisting ropes are separated from the photovoltaic platform 1 on the transport barge 300, and then the photovoltaic platform 1 is transported to the offshore construction site by the transport barge 300;

[0049] Step five, before the transport barge reaches the offshore construction site, the lower ends of the four upper steel wires 4 of the second set of upper slings are connected to the four lifting lugs 21 on the second lifting frame 2, and the upper ends of the four upper steel wires 4 of the second set of upper slings are connected to the main hook of the crane ship 400, and the upper ends of the four pairs of lower steel wires 5 of the second set of lower slings are connected to the lower ends of the two pairs of front lifting rods 22 and the two pairs of rear lifting rods 23 of the second lifting frame 2 one by one;

[0050] After the transport barge 300 reaches the offshore construction site, the crane ship 400 moves to the side of the transport barge 300, the main hook of the crane ship 400 moves the second lifting frame 2 to the upper side of the photovoltaic platform 1 and lowers it to the appropriate height, and then the workers on the transport barge 300 connect the lower ends of the four pairs of lower steel wires 5 of the second set of lower slings to the second connecting ring 32 and the third connecting ring 33 on the hoop 3 of the four fulcrum seats 13 of the photovoltaic platform 1 one by one;

[0051] Step six, the photovoltaic platform 1 is lifted by the main hook of the crane ship 400, and is moved to the four pile foundations 100 previously installed at sea, and the four fulcrum seats 13 of the photovoltaic platform 1 are connected to the connecting seats on the top of the four pile foundations 100 one by one (see Figure 9 );

[0052] Step seven, after the four fulcrum seats 13 of the photovoltaic platform 1 are connected to the four pile foundations 100 one by one, the workers on the transport barge 300 are first transported to the four fulcrum seats 13 of the photovoltaic platform 1 by the telescopic working arm on the crane ship 400, the connection between the lower ends of the four pairs of lower steel wires 5 of the second set of lower slings and the hoop 3 on the four fulcrum seats 13 is disconnected by the workers, the second set of lower slings, the second lifting frame 2 and the second set of upper slings are separated from the photovoltaic platform 1, then the hoop 3 on the four fulcrum seats 13 is manually opened, and the four hoops 3 and the two fulcrum wire ropes 6 are sent back to the transport barge 300 by the crane ship 400.

[0053] The hoisting device of the utility model can be used for hoisting the photovoltaic platform without using the transport barge 300 to transport the photovoltaic platform 1, and only the crane ship 400 is used to complete the transportation and installation of the photovoltaic platform 1, so that one lifting frame 2, one set of upper slings and one set of lower slings can be saved. The shackles at the two ends of the four pairs of lower steel wires 5 can also be replaced by other ways.

[0054] The above embodiments are only used to illustrate the utility model, and are not limited to the utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the utility model, therefore, all equivalent technical solutions should belong to the scope of the utility model, which is limited by the claims.

Claims

1. A hoisting device for hoisting a photovoltaic platform to four pile foundations arranged in a rectangle on the sea; the photovoltaic platform comprises a photovoltaic platform body, two front legs connected to the front bottom of the photovoltaic platform body, two rear legs connected to the rear bottom of the photovoltaic platform body, and four inverted round table-shaped fulcrum bases each connected to the bottom of the two front legs and the bottom of the two rear legs and each corresponding to the top of the four pile foundations; the height of the front leg is greater than the height of the rear leg; the hoisting device comprises a hanger, four hoops, a set of upper hoisting ropes, a set of lower hoisting ropes, and two fulcrum base steel wires; characterized in that, the hanger comprises a top frame, four hanger ears, two pairs of front hanger rods, and two pairs of rear hanger rods; the top frame is a rectangular grid frame, the width of the top frame is greater than the width of the photovoltaic platform body, and the length of the top frame is less than the length of the photovoltaic platform body but greater than the horizontal distance between the fulcrum bases of the photovoltaic platform; the four hanger ears are fixed one by one on the top surface of the four corners of the top frame; the length of the front hanger rod is greater than the vertical distance between the front end of the top surface of the photovoltaic platform body and the rear end of the top surface but less than the vertical distance between the front end of the top surface of the photovoltaic platform body and the fulcrum base; the two pairs of front hanger rods are fixed one by one on the bottom surface of the top frame and are located one by one and symmetrically on the front two sides of the fulcrum bases at the bottom of the two front legs; the length of the rear hanger rod is the same as that of the front hanger rod; the two pairs of rear hanger rods are fixed one by one on the bottom surface of the top frame and are located one by one and symmetrically on the rear two sides of the fulcrum bases at the bottom of the two rear legs; the longitudinal distance between one pair of front hanger rods and one pair of rear hanger rods is equal to the width L + 0.5m ~ 3m of the photovoltaic platform body; the four hoops are installed one by one in the middle of the four fulcrum bases of the photovoltaic platform; each hoop comprises two half-circular hoop plates and two sets of fastening bolts; the outer surface of one hoop plate is fixed with a first connecting ring in the middle, and the outer surface of the other hoop plate is fixed with a second connecting ring and a third connecting ring at intervals; the set of upper hoisting ropes comprises four upper steel wires, the lower ends of which are connected one by one to the four hanger ears of the hanger, and the upper ends of which are all connected to the main hook of the hoisting equipment; the set of lower hoisting ropes comprises four pairs of lower steel wires, the upper ends of which are connected one by one to the lower ends of the two pairs of front hanger rods and the two pairs of rear hanger rods, and the lower ends of which are connected one by one to the second connecting ring and the third connecting ring of the four hoops; the length of the fulcrum base steel wire is adapted to the longitudinal distance of the fulcrum base of the photovoltaic platform; one end of each of the two fulcrum base steel wires is connected one by one to the first connecting ring of the hoop on the fulcrum base at the bottom of the two front legs, and the other end of each of the two fulcrum base steel wires is connected one by one to the first connecting ring of the hoop on the fulcrum base at the bottom of the two rear legs.

2. A hoisting arrangement for an offshore photovoltaic platform according to claim 1, characterized in that, The top frame comprises two cross beams, two longitudinal beams, a plurality of longitudinal struts spanning between the two cross beams, and a plurality of cross struts spanning between the two longitudinal beams; a front inclined strut is further connected between the lower part of each of the two pairs of front lifting rods and the bottom surface of the top frame; a rear inclined strut is further connected between the lower part of each of the two pairs of rear lifting rods and the bottom surface of the top frame.

3. A hoisting arrangement for an offshore photovoltaic platform according to claim 1, characterized in that, The lower ends of the two pairs of front lifting rods and the lower ends of the two pairs of rear lifting rods are each fixed with a lifting ring, and the upper ends of the four pairs of lower steel wires are correspondingly connected to the lifting rings of the lower ends of the two pairs of front lifting rods and the lifting rings of the lower ends of the two pairs of rear lifting rods.

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