Floating transportation method for cylindrical component

Abstract

According to the floating transportation method for the cylindrical component, the cylindrical component is vertically arranged on a semi-submersible barge, then a buoyancy base is installed at an opening in the bottom end of the cylindrical component, the buoyancy base is connected to the inner side of the cylindrical component in a clamped mode, and the buoyancy base is used for closing the opening in the bottom end of the cylindrical component. And the semi-submersible barge begins to dive, an air pipe on the buoyancy seat is opened, and air in the lower space of the buoyancy seat and the inner cavity of the buoyancy seat is exhausted. When the cylindrical component sinks to the bottom surface of the buoyancy seat and is in contact with the liquid level, the air pipe on the buoyancy seat is closed; after the buoyancy base makes contact with the liquid level, buoyancy is generated, and therefore the buoyancy base floats upwards and abuts against the cylindrical component. Inflating an inflatable water-stop belt wound on the periphery of the buoyancy seat to enable the inflatable water-stop belt to expand until the inflatable water-stop belt is attached to the inner wall of the cylindrical component; and the semi-submersible barge continues to dive, and when the barrel-shaped component sinks till the buoyancy borne by the barrel-shaped component is balanced with the gravity, the barrel-shaped component floats and stops in water. The floating transportation method of the cylindrical component is suitable for floating transportation in a good sea condition or a shallow sea area.

Description

Technical Field

[0001] The present application belongs to the technical field of component transportation, and more specifically, relates to a floating transportation method for a cylindrical component. Background Art

[0002] As an indispensable structural component in the field of modern marine engineering and underwater construction, cylindrical components have a very wide range of applications, covering many key links such as the laying of submarine pipelines, the infrastructure construction of offshore platforms, and the construction of underwater tunnels. Such components usually have a large volume and deadweight. The traditional method of transporting cylindrical components mainly relies on large-scale lifting facilities, such as heavy cranes or large floating cranes, to achieve the displacement of components through lifting operations. However, the rental and use costs of large-scale lifting facilities are extremely high. More importantly, in some remote sea areas or deep-sea operating environments, the accessibility and operability of equipment such as large floating cranes are greatly limited. Due to the complexity and variability of the marine environment, such as strong winds, huge waves, and the complexity of the seabed terrain, large-scale lifting facilities are also difficult to operate stably, which not only increases the complexity of transportation, but also increases the risk of operations. Summary of the invention

[0003] The purpose of the embodiments of the present application is to provide a floating method for a cylindrical component, so as to solve the technical problems existing in the prior art that the transportation of cylindrical components is difficult and the transportation cost is high.

[0004] To achieve the above purpose, the technical solution adopted in this application is:

[0005] A method for floating a cylindrical component is provided, comprising the following steps:

[0006] The cylindrical component is erected on the semi-submersible barge;

[0007] A buoyancy seat is installed at the bottom opening of the cylindrical component, wherein the buoyancy seat is clamped on the inner side of the cylindrical component and is used to close the bottom opening of the cylindrical component;

[0008] The semi-submersible barge starts to dive, and opens the air pipe on the buoyancy seat to discharge the air in the space below the buoyancy seat and the cavity inside the buoyancy seat; after the bottom surface of the buoyancy seat contacts the liquid surface, the air pipe on the buoyancy seat is closed; after the buoyancy seat contacts the liquid surface, buoyancy is generated, so that it floats upward and presses against the cylindrical component;

[0009] Inflate the inflatable water stop belt arranged around the outer periphery of the buoyancy seat so that the water stop belt expands to fit with the inner wall of the cylindrical component to close the lower space of the buoyancy seat;

[0010] The semi-submersible barge continues to dive, and when the cylindrical component sinks to a point where the buoyancy it is subjected to is balanced with the gravity, the cylindrical component floats in the water.

[0011] As a further improvement of the above technical solution:

[0012] Optionally, under the deadweight of the cylindrical member, the cavity of the buoyancy seat is forced to be pressed into a certain liquid level height;

[0013] The air is inflated / deflated into the cavity of the buoyancy seat through the air pipe to adjust the liquid level in the cavity of the buoyancy seat, thereby adjusting the buoyancy of the buoyancy seat.

[0014] Optionally, the bottom surface of the buoyancy seat is higher than the bottom surface of the cylindrical component by a certain distance.

[0015] Optionally, the inner wall of the cylindrical component has a slot structure, the buoyancy seat is snap-connected to the slot structure, and the slot structure includes a slot and flanges arranged on upper and lower sides of the slot.

[0016] Optionally, the buoyancy seat includes a seat body and a snap-on assembly, the seat body is provided with a slide groove, the snap-on assembly includes a slider and a sliding drive member, the slider is slidably connected in the slide groove, one end of the sliding drive member is connected to the seat body, and the other end of the sliding drive member is drivingly connected to the slider, and the sliding drive member is used to drive the slider to extend out of the seat body so as to be snapped into the slot.

[0017] Optionally, the cavity of the buoyancy seat is arranged in the seat body, and the bottom end of the cavity has an opening, and the opening is annular to separate the bottom plate of the buoyancy seat into an inner ring bottom plate and an outer ring bottom plate.

[0018] Optionally, the buoyancy seat further comprises a laser rangefinder mounted on the seat body and used to measure the distance of the buoyancy seat relative to the center of the cylindrical member, so as to adjust the extension amount of the sliding drive member so that the buoyancy seat is coaxial with the cylindrical member.

[0019] The beneficial effects of a floating method for a cylindrical component provided by the present application are:

[0020] The floating method of the cylindrical component of the present application is to first erect the cylindrical component on a semi-submersible barge, which needs to have sufficient carrying capacity. Then, a buoyancy seat is installed at the bottom opening of the cylindrical component, and the buoyancy seat is clamped on the inner side of the cylindrical component. The buoyancy seat is used to close the bottom opening of the cylindrical component. The semi-submersible barge starts to dive and opens the air pipe on the buoyancy seat. Under the action of the deadweight of the cylindrical component, the air in the lower space of the buoyancy seat and the cavity inside the buoyancy seat is squeezed out. When the cylindrical component sinks to the bottom of the buoyancy seat and contacts the liquid surface, the air pipe on the buoyancy seat is closed; after the buoyancy seat contacts the liquid surface, buoyancy is generated, so that it floats upward and presses against the cylindrical component; the inflatable water stop belt arranged around the outer periphery of the buoyancy seat is inflated to expand it to fit with the inner wall of the cylindrical component to close the lower space of the buoyancy seat, thereby completely separating the upper space and the lower space of the buoyancy seat. The upper space of the buoyancy seat is used to provide buoyancy so that the cylindrical component has sufficient buoyancy to float on the water. The semi-submersible barge continues to dive, and when the cylindrical component sinks and the buoyancy it receives is balanced with the gravity, the cylindrical component floats in the water, and then the cylindrical component can be towed and transported to the designated sea area by a small tonnage tugboat, without the need for a large loading ship to carry the cylindrical component, thereby reducing the transportation difficulty and transportation cost of the cylindrical component. The floating method of the cylindrical component of the present application is suitable for floating transportation of cylindrical components in good sea conditions or shallow waters. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A structural schematic diagram of state 1 of the floating method of a cylindrical component provided by the present application;

[0023] Figure 2 A structural schematic diagram of state 2 of the floating method of a cylindrical component provided by the present application;

[0024] Figure 3 A structural schematic diagram of state 3 of the floating method of a cylindrical component provided in the present application;

[0025] Figure 4 A structural schematic diagram of state 4 of the floating method of a cylindrical component provided by the present application;

[0026] Figure 5 A structural schematic diagram of state 5 of the floating method of the cylindrical component provided by the present application;

[0027] Figure 6 for Figure 2Schematic diagram of the local enlarged structure in.

[0028] Among them, the reference numerals in the figure are:

[0029] 1. Cylindrical member; 13. Slot structure; 131. Slot; 132. Flange; 2. Semi-submersible barge; 3. Buoyancy seat; 31. Seat body; 311. Slide; 32. Snap-on assembly; 321. Sliding block; 322. Sliding drive member; 33. Inflatable waterstop; 34. Laser rangefinder. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of the present invention.

[0036] In the following description, suffixes such as "module", "component", "assembly" or "unit" are used only to facilitate the description of the present invention and have no specific meanings. Therefore, they can be used in combination.

[0037] The present invention will be further described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0038] The present application provides a floating method for a cylindrical component, comprising the following steps:

[0039] like Figure 1 and Figure 2 As shown, the cylindrical component 1 is first erected on the semi-submersible barge 2, which must have sufficient load-bearing capacity. Then the buoyancy seat 3 is installed at the bottom opening of the cylindrical component 1, and the buoyancy seat 3 is clamped on the inner side of the cylindrical component 1, and the buoyancy seat 3 is used to close the bottom opening of the cylindrical component 1.

[0040] like Figure 3 and Figure 4 As shown, the semi-submersible barge 2 starts to dive and opens the air pipe on the buoyancy seat 3. Under the action of the deadweight of the cylindrical component 1, the air in the lower space of the buoyancy seat 3 and the cavity inside the buoyancy seat 3 is squeezed out. When the cylindrical component 1 sinks to the bottom surface of the buoyancy seat 3 and contacts the liquid surface, the air pipe on the buoyancy seat 3 is closed; after the buoyancy seat 3 contacts the liquid surface, buoyancy is generated, so that it floats upward and presses against the cylindrical component 1;

[0041] The inflatable waterstop 33 arranged around the outer periphery of the buoyancy seat 3 is inflated to expand it until it fits with the inner wall of the cylindrical component 1 to close the lower space of the buoyancy seat 3, thereby completely separating the upper space and the lower space of the buoyancy seat 3. The upper space of the buoyancy seat 3 is used to provide buoyancy so that the cylindrical component 1 has sufficient buoyancy to float on the water.

[0042] like Figure 5 As shown, the semi-submersible barge 2 continues to dive, and when the cylindrical component 1 sinks to a point where the buoyancy it receives is balanced with the gravity, the cylindrical component 1 floats in the water, and then a small-tonnage tugboat can tow the cylindrical component 1 to a designated sea area, without the need for a large loading vessel to carry the cylindrical component 1, thereby reducing the transportation difficulty and transportation cost of the cylindrical component 1. The floating transportation method of the cylindrical component of the present application is suitable for floating transportation of the cylindrical component 1 in relatively good sea conditions or in shallow waters.

[0043] like Figure 4 As shown, in a specific embodiment of the present application, under the action of the deadweight of the cylindrical component 1, the cavity of the buoyancy seat 3 is forced to be pressed into a certain liquid level height; the cavity of the buoyancy seat 3 is filled / depleted through the air pipe, so that the liquid level height in the cavity of the buoyancy seat 3 can be adjusted, thereby adjusting the buoyancy of the buoyancy seat 3.

[0044] like Figures 1 to 5 As shown, in a specific embodiment of the present application, the bottom surface of the buoyancy seat 3 is higher than the bottom surface of the cylindrical component 1 by a certain distance to prevent the cylindrical component 1 from protruding out of the cylindrical component 1, so as to prevent the bottom surface of the buoyancy seat 3 from contacting the bottom bed when the cylindrical component 1 sinks to the bottom bed.

[0045] like Figure 6 As shown, in a specific embodiment of the present application, the inner wall of the cylindrical member 1 has a slot structure 13, and the slot structure 13 is close to the lower end opening of the cylindrical member 1. The buoyancy seat 3 is snapped into the slot structure 13, and the slot structure 13 includes a slot 131 and flanges 132 arranged on the upper and lower sides of the slot 131. The flange 132 plays the role of cooperating with the buoyancy seat 3 to limit the position, and the role of conducting force. When the buoyancy seat 3 is snapped into the slot 131, the buoyancy seat 3 is connected to the cylindrical member 1 in a limited position.

[0046] like Figure 6 As shown, in a specific embodiment of the present application, the buoyancy seat 3 includes a seat body 31 and a clamping assembly 32. Specifically, a slide groove 311 is provided on the seat body 31 to provide a moving path for the clamping assembly 32. The clamping assembly 32 includes a slider 321 and a sliding drive member 322. The slider 321 is slidably connected to the slide groove 311, one end of the sliding drive member 322 is connected to the seat body 31, and the other end of the sliding drive member 322 is drivingly connected to the slider 321. The sliding drive member 322 is used to drive the slider 321 to extend out of the seat body 31 so as to be clamped into the clamping groove 131. The sliding drive member 322 can specifically be a hydraulic / pneumatic cylinder or an electric push rod, etc.

[0047] like Figure 6As shown, in a specific embodiment of the present application, the cavity of the buoyancy seat 3 is provided in the seat body 31, and the bottom end of the cavity has an opening, which is annular to separate the bottom plate of the buoyancy seat 3 into an inner ring bottom plate and an outer ring bottom plate. When the buoyancy seat 3 is tilted, the annular opening can minimize the leakage of gas in the cavity of the buoyancy seat 3, thereby ensuring the buoyancy stability of the buoyancy seat 3 in the tilted state. The space reserved in the cavity can also meet the requirements of free movement of the water body, thereby reducing the requirements for the water seal height of the cylindrical component 1 during floating and towing, thereby reducing the overall height of the buoyancy seat 3 and reducing the amount of material used.

[0048] like Figure 6 As shown, in a specific embodiment of the present application, the buoyancy seat 3 also includes a laser rangefinder 34, which is installed on the seat body 31 and is used to measure the distance of the buoyancy seat 3 relative to the center of the cylindrical member 1, so as to adjust the extension amount of the sliding drive 322 so that the buoyancy seat 3 is coaxial with the cylindrical member 1. In the actual operation process, the laser rangefinder 34 will continuously emit a laser beam and receive the signal reflected back. By calculating parameters such as the round-trip time or phase difference of the laser beam, the relative distance between the current position of the buoyancy seat 3 and the center of the cylindrical member 1 can be determined. Once the system detects that the buoyancy seat 3 has a deviation from the center position of the cylindrical member 1, it will then feed back this deviation signal to the control system, automatically calculate the value that needs to be adjusted, and adjust the extension length of the sliding drive 322 accordingly, thereby effectively calling back the buoyancy seat 3 to a state coaxial with the cylindrical member 1.

[0049] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for floating a cylindrical component, characterized in that: The steps include: The cylindrical component (1) is erected on a semi-submersible barge (2); A buoyancy seat (3) is installed at the bottom opening of the cylindrical component (1), wherein the buoyancy seat (3) is clamped on the inner side of the cylindrical component (1), and the buoyancy seat (3) is used to close the bottom opening of the cylindrical component (1); The semi-submersible barge (2) starts to dive and opens the air pipe on the buoyancy seat (3) to discharge the air in the space below the buoyancy seat (3) and the cavity inside the buoyancy seat (3); after the bottom surface of the buoyancy seat (3) contacts the liquid surface, the air pipe on the buoyancy seat (3) is closed; after the buoyancy seat (3) contacts the liquid surface, buoyancy is generated, thereby floating upward and pressing against the cylindrical component (1); Inflate the inflatable water stop (33) disposed around the outer periphery of the buoyancy seat (3) to expand it until it fits against the inner wall of the cylindrical component (1) to close the lower space of the buoyancy seat (3); The semi-submersible barge (2) continues to dive, and when the cylindrical component (1) sinks to a point where the buoyancy it experiences is balanced with the gravity, the cylindrical component (1) floats in the water.

2. The method for floating a cylindrical member according to claim 1, characterized in that: Under the action of the deadweight of the cylindrical component (1), the cavity of the buoyancy seat (3) is forced to be pressed into a certain liquid level height; Air is inflated / deflated into the cavity of the buoyancy seat (3) through an air pipe to adjust the liquid level in the cavity of the buoyancy seat (3), thereby adjusting the buoyancy of the buoyancy seat (3).

3. The method for floating a cylindrical member according to claim 1, characterized in that: The bottom surface of the buoyancy seat (3) is higher than the bottom surface of the cylindrical component (1) by a certain distance.

4. The method for floating a cylindrical member according to claim 1, characterized in that: The inner wall of the cylindrical component (1) has a slot structure (13), the buoyancy seat (3) is snap-connected to the slot structure (13), and the slot structure (13) comprises a slot (131) and flanges (132) arranged on upper and lower sides of the slot (131).

5. The method for floating a cylindrical member according to claim 4, characterized in that: The buoyancy seat (3) comprises a seat body (31) and a snap-on assembly (32); the seat body (31) is provided with a slide groove (311); the snap-on assembly (32) comprises a slider (321) and a sliding drive member (322); the slider (321) is slidably connected to the slide groove (311); one end of the sliding drive member (322) is connected to the seat body (31); the other end of the sliding drive member (322) is drivingly connected to the slider (321); the sliding drive member (322) is used to drive the slider (321) to extend out of the seat body (31) so as to snap into the snap-on groove (131).

6. The method for floating a cylindrical member according to claim 5, characterized in that: The cavity of the buoyancy seat (3) is arranged in the seat body (31), and the bottom end of the cavity has an opening, and the opening is annular so as to separate the bottom plate of the buoyancy seat (3) into an inner ring bottom plate and an outer ring bottom plate.

7. The method for floating a cylindrical member according to claim 5, characterized in that: The buoyancy seat (3) further comprises a laser rangefinder (34), which is mounted on the seat body (31) and is used to measure the distance of the buoyancy seat (3) relative to the center of the cylindrical member (1), so as to adjust the extension amount of the sliding drive member (322) so that the buoyancy seat (3) and the cylindrical member (1) are coaxial.

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