Working boat transportation and maintenance device for semi-submersible platform

Abstract

A working boat transportation and maintenance device for a semi-submersible platform is characterized in that a plurality of guide columns are fixed on a floating body top deck, a support is defined by the guide columns, the overall shape of the support is the same as that of a speed boat, the height of the guide columns is larger than that of the deepest draft surface, the guide columns are provided with rolling wheels at the deepest draft surface, and buffer rubber is installed on the outer sides of the rolling wheels; a plurality of rows of supporting columns are arranged in the middle of the interior of the support and between the guide columns. The supporting columns are lower than the guide columns. A circle of service platform is arranged on the outer side of the guide column in the circumferential direction of the guide column, a lifting beam is arranged above the support and fixed to the deck box, a lifting appliance is arranged at the end of the lifting beam and comprises a fixed pulley located on the upper portion and a lifting hook located on the lower portion, a movable pulley is installed on the lifting hook, and the fixed pulley and the movable pulley are connected through a lifting chain. The working boat is driven into the support and clamped between the guide columns. The structure is simple, complex working boat cranes and wave compensation devices are not used, and the building and using cost is low.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of offshore engineering design and construction, and particularly relates to a working boat transportation and maintenance device for a semi-submersible platform. BACKGROUND

[0002] The working boat, as a small transport boat, is widely used in offshore wind power operation and maintenance, and has the typical characteristics of small boat type, low voyage and low seakeeping performance, and has the shortcomings of poor comfort, limited operation and maintenance distance, poor wind and wave resistance, etc. When operating and maintaining the offshore deep sea wind power plant, the working boat usually needs to rely on the operation and maintenance mother ship, and departs from the operation and maintenance mother ship near the wind power plant to the wind power facility during operation, and returns to the operation and maintenance mother ship and is berthed on the operation and maintenance mother ship during non-operation, so that the operation and maintenance personnel can rest on the operation and maintenance mother ship, and the working boat can obtain material supply. When the working boat encounters bad weather or needs to be transferred over a long distance, and needs to be overhauled and maintained, the working boat needs to be stored on the operation and maintenance mother ship.

[0003] At present, the conventional method is to use a dedicated working boat crane to hoist the working boat to the deck of the operation and maintenance mother ship. Since the working boat moves greatly under the influence of waves, the working boat crane needs to be provided with a wave compensation device, so that the cost is high, and the working boat also occupies a large deck area. SUMMARY

[0004] To solve the above problems, the present application provides a working boat transportation and maintenance device for a semi-submersible platform, which adopts the technical scheme of:

[0005] A working boat transportation and maintenance device for a semi-submersible platform, a plurality of guide columns are fixed on the top deck of the floating body, and the plurality of guide columns enclose a support, the overall shape of the support is the same as the shape of the speedboat, the height of the guide column is greater than the deepest water surface, the guide column is provided with a roller at the deepest water surface, and a buffer rubber is installed outside the roller; a plurality of rows of struts are arranged between the guide columns in the middle of the support, and the height of the struts is less than the height of the guide columns.

[0006] A service platform is arranged outside the guide column and circumferentially along the guide column, a hanging beam is arranged above the support, the hanging beam is fixed at the deck box, a lifting appliance is arranged at the end of the hanging beam, the lifting appliance includes a fixed pulley at the upper part and a lifting hook at the lower part, a movable pulley is arranged on the lifting hook, and the fixed pulley and the movable pulley are connected through a lifting chain; the working boat enters the support and is clamped between the guide columns.

[0007] Further, a continuous reinforcing cross brace is fixed on the guide column.

[0008] Further, the plurality of guide columns are arranged at equal intervals.

[0009] The working boat transportation and maintenance device for the semi-submersible platform further comprises that the support posts are fixed between the guide columns through the cross braces.

[0010] The working boat transportation and maintenance device for the semi-submersible platform further comprises that each row of support posts is composed of a plurality of support posts which are arranged at equal intervals.

[0011] The working boat transportation and maintenance device for the semi-submersible platform further comprises that each row of support posts is in an arc shape which is concave downward as a whole.

[0012] The device can be used for the working boat transportation and maintenance of the semi-submersible platform, has simple structure, avoids using complex working boat hoists and wave compensation devices, has low construction and use cost, fully utilizes the upper space of the floating body, avoids occupying the upper deck space and improves the comprehensive operation capacity of the platform. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a side view of the present application;

[0014] Figure 2 is a top view of the present application;

[0015] Figure 3 is a front view of the present application;

[0016] Figure 4 is a front view of the present application;

[0017] Wherein: 1 - guide column, 2 - cross brace, 3 - roller, 4 - service platform, 5 - hanger beam, 6 - support post. DETAILED DESCRIPTION

[0018] The present application is further described in conjunction with the drawings.

[0019] As shown in Figure 1 , 2 a working boat transportation and maintenance device for a semi-submersible platform, the device mainly comprises a group of vertical guide columns 1, the lower part of the guide columns 1 is installed on the top deck of the floating body and the upper part extends above the deeper draft. The cross braces 2 are arranged between the guide columns 1 on the same side of the working boat and between the guide columns 1 on the opposite sides of the working boat, which are used to bear the longitudinal and transverse loads.

[0020] The guide columns 1 are arranged in a trumpet shape on the top deck of the floating body and are provided with rollers 3 at the position of the deeper draft, which can facilitate the working boat to enter, and the outside of the rollers 3 is installed with buffer rubbers, which can avoid the possible damage caused by the collision between the working boat and the guide columns during the entry of the working boat. In addition, the shape of the trumpet formed by the guide columns 1 is adapted to the shape of the working boat, and the working boat can be limited between the guide columns 1 after entering, thereby reducing the movement amplitude.

[0021] As Figure 2 shown, a service platform 4 is arranged outside the guide column 1 at the working boat storage height, personnel can reach the platform from the deck box through a straight ladder to carry out necessary maintenance on the working boat, and as Figure 1 shown, a hoisting beam 5 is arranged above the working boat at the height of the deck box, and a hoist is matched with the hoisting beam 5, the upper body of the hoist is provided with a fixed pulley, and the lower hook is provided with a movable pulley, and the fixed pulley and the movable pulley are connected through a hoisting chain to form a pulley system, which can hoist and transport the maintenance parts to the working boat.

[0022] As Figure 4 shown, a support column 6 is arranged on the middle region of the guide column 1 to support the working boat, the support columns 6 are arranged in three rows, four in each row, and the height of the outer support column 6 is higher than that of the inner support column 6, so as to match the contour of the bottom of the working boat, and a buffer pad is arranged on the upper surface of the support column 6 to avoid damage to the bottom of the working boat due to impact force when the working boat lands on the support column 6.

[0023] The operation steps of the present application are as follows to realize the transportation and maintenance function of the working boat:

[0024] 1. The semi-submersible platform is ballasted to a deeper draft height, the boat rack is located underwater, the upper end of the guide column 1 is above water, and the working boat is driven from the outside, as Figure 2 、 3 shown, the entering the middle contact part of the guide column 1 maintains the propulsion force to maintain contact with the inner guide column 1, at this time the working boat is located above the boat rack.

[0025] 2. The semi-submersible platform discharges ballast water to lift the platform to a shallower draft height, as Figure 4 shown, as the platform is lifted, the working boat is stably landed on the support column 6.

[0026] 3. Maintenance personnel reach the service platform 4 from the deck box through a straight ladder, which can maintain the working boat, or use a rope to fix the working boat to the guide column 1 for easy long-distance transportation and harsh weather.

[0027] The device of the present application can be used for transportation and maintenance of the working boat of the semi-submersible platform, which has simple structure, avoids using complex working boat hoist and wave compensation device, has low construction and use cost, fully utilizes the upper space of the floating body, avoids occupying the upper deck space, and improves the comprehensive operation ability of the platform.

Claims

1. A workboat transport maintenance device for a semi-submersible platform, characterized by A plurality of guide columns are fixed on the top deck of the floating body, and the plurality of guide columns enclose a support, the overall shape of the support is the same as the shape of the speedboat, the height of the guide column is greater than the deepest water surface, the guide column is provided with a roller at the deepest water surface, and a buffer rubber is installed outside the roller; a plurality of rows of support columns are arranged between the guide columns in the middle of the support, and the height of the support column is less than the height of the guide column; A service platform is arranged outside the guide column and circumferentially along the guide column, a hanging beam is arranged above the support, the hanging beam is fixed at the deck box, the end of the hanging beam is provided with a lifting appliance, the lifting appliance includes a fixed pulley at the upper part and a lifting hook at the lower part, a movable pulley is installed on the lifting hook, and the fixed pulley and the movable pulley are connected through a lifting chain; the working boat is driven into the support and clamped between the guide columns.

2. A service boat transportation and maintenance device for a semi-submersible platform according to claim 1, characterized in that, A continuous reinforcing cross brace is fixed on the guide column.

3. A service boat transportation and maintenance device for a semi-submersible platform according to claim 1, characterized in that, The plurality of guide columns are arranged at equal intervals.

4. A service boat transportation and maintenance device for a semi-submersible platform according to claim 1, characterized in that, The support columns are fixed between the guide columns through the cross brace.

5. A service boat transportation and maintenance device for a semi-submersible platform according to claim 1, characterized in that, Each row of support columns is composed of a plurality of support columns, and the plurality of support columns are arranged at equal intervals.

6. A service boat transportation and maintenance device for a semi-submersible platform according to claim 1, characterized in that, Each row of support columns is in the shape of an arc concave downward.

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