Split outer protective cover for shallow water underwater production systems at a water depth of 50m

Abstract

The invention discloses a split outer protective cover suitable for a shallow underwater production system at a water depth of 50m, comprising a rectangular bottom frame and a rectangular top frame, a rectangular grid top plate and a trapezoidal grid side plate; the four vertices of the rectangular bottom frame and the four vertices of the rectangular top frame are connected by side oblique frames to form a quadrangular pyramid structure support frame; the rectangular grid top plate is laid on the top surface of the quadrangular pyramid structure support frame; the trapezoidal grid side plate is laid on each side of the quadrangular pyramid structure support frame. The protective cover of the invention places the underwater production system in the protective cover, which can avoid damage caused by dragging of fishing nets and damage to the underwater production system caused by the dragging force of fishing boats.

Description

Technical Field

[0001] The invention relates to the design of an underwater production system suitable for a water depth of 50 m, and in particular to a split outer protective cover for avoiding damage caused by falling objects and dragging of fishing nets. Background Art

[0002] my country's shallow water areas are rich in petroleum geological resources, most of which are located within 50m of water depth. Research has found that such resources can be developed by using shallow water oil trees. However, since there are many fishing boats operating in shallow waters, if the fishing nets are hung on the outer shell of the underwater production system, the strong dragging force of the fishing boats may damage the underwater production system. Falling objects from above may also cause damage to the underwater production system. Once an oil and gas leak occurs, it will cause an ecological disaster. Summary of the invention

[0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a split outer protective cover suitable for a shallow underwater production system at a water depth of 50m. The protective cover can avoid damage caused by dragging of fishing nets and damage to the underwater production system caused by the dragging force of fishing boats.

[0004] The technical solution adopted by the present invention is: a split outer protective cover suitable for a shallow underwater production system with a water depth of 50m, comprising:

[0005] A rectangular bottom frame and a rectangular top frame, wherein the four vertices of the rectangular bottom frame and the four vertices of the rectangular top frame are connected by side oblique frames to form a four-sided pyramid structure support frame;

[0006] A rectangular grid top plate, the rectangular grid top plate is laid on the top surface of the tetrahedral structure support frame; and,

[0007] Trapezoidal grid side panels are laid on each side of the tetrahedral pyramid structure support frame.

[0008] Furthermore, a rectangular bottom-level additional frame is arranged in the bottom surface of the tetrahedral structure support frame, and the projections of the rectangular bottom-level additional frame and the rectangular top-level frame on the bottom surface of the tetrahedral structure support frame coincide with each other; a vertical frame is connected between each vertex of the rectangular bottom-level additional frame and the corresponding vertex of the rectangular top-level frame, and a bottom-level inclined frame is connected between each vertex of the rectangular bottom-level additional frame and the corresponding vertex of the rectangular bottom-level frame; wherein the underwater production system is located in the rectangular space surrounded by the vertical frames.

[0009] Furthermore, the angle between the side surface and the bottom surface of the quadrangular pyramid structure supporting frame is 30° to 60°.

[0010] Furthermore, four corners of the rectangular grid top plate are provided with hoisting positions.

[0011] Furthermore, the trapezoidal grid side panel on each side surface of the quadrangular pyramid structure support frame is composed of two trapezoidal side panel monomers.

[0012] Furthermore, connection positions are provided on the four corners of the rectangular bottom frame and the four frames constituting the rectangular bottom frame for connecting the protective cover and the base of the underwater production system.

[0013] Furthermore, a plurality of the connection positions are arranged at intervals on each frame of the rectangular bottom frame.

[0014] The beneficial effects of the present invention are:

[0015] The protective cover of the present invention places the underwater production system inside the protective cover, which can avoid damage caused by the dragging of the fishing net and the damage caused by the dragging force of the fishing boat to the underwater production system. The overall gravity of the protective cover is greater than the buoyancy, and the bottom is connected to the base of the underwater production system. The connection position is as follows: Figure 1 In the present invention, the use of grid plates can effectively reduce the impact of water flow on the protective cover, the trapezoidal grid side plates can be removed during maintenance, and the four corners of the top plate are suitable for installation and maintenance. All connection positions need to be rounded, the overall surface is smooth, and there are no protruding components. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 : Schematic diagram of the structure of the present invention;

[0017] Figure annotation:

[0018] 1——Rectangular bottom frame; 2——Rectangular top frame;

[0019] 3——Side inclined frame; 4——Rectangular grid top plate;

[0020] 5——trapezoidal grid side panels; 6——rectangular bottom additional frame;

[0021] 7——vertical frame; 8——bottom inclined frame;

[0022] 9——Lifting position; 10——Trapezoidal side panel unit;

[0023] 11——Connection position. DETAILED DESCRIPTION

[0024] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0025] As attached Figure 1As shown, a split outer protective cover suitable for a shallow underwater production system at a water depth of 50m is a hollow prism structure with a rectangular top and a rectangular bottom made of stainless steel, and the underwater production system is placed inside the protective cover. The protective cover includes a support frame, a rectangular grid top plate 4 and a trapezoidal grid side plate 5.

[0026] The support frame is welded by steel pipes, including a rectangular bottom frame 1 and a rectangular top frame 2. The four vertices of the rectangular bottom frame 1 and the four vertices of the rectangular top frame 2 are connected by a side inclined frame 3 to form a four-sided pyramid structure support frame with a rectangular top surface and trapezoidal front, back, left and right four sides. The angle between the trapezoidal slope of the four-sided pyramid structure support frame and the bottom surface is 30° to 60°. In addition, a rectangular bottom additional frame 6 is arranged in the bottom surface of the four-sided pyramid structure support frame, and the projection of the rectangular bottom additional frame 6 and the rectangular top frame 2 on the bottom surface of the four-sided pyramid structure support frame coincides; a vertical frame 7 is connected between each vertex of the rectangular bottom additional frame 6 and the corresponding vertex of the rectangular top frame 2, and a bottom inclined frame 8 is connected between each vertex of the rectangular bottom additional frame 6 and the corresponding vertex of the rectangular bottom frame 1. The underwater production system is located in the rectangular parallelepiped space surrounded by the vertical frame 7.

[0027] The rectangular grid top plate 4 is installed on the top surface of the four-sided pyramid structure support frame, and the four corners of the rectangular grid top plate 4 are provided with hoisting positions 9. The trapezoidal grid side plate 5 is installed on each side of the four-sided pyramid structure support frame, and the trapezoidal grid side plate 5 on each side of the four-sided pyramid structure support frame is composed of two trapezoidal side plate monomers 10. The use of grid plates can effectively reduce the impact of water flow on the protective cover, and the trapezoidal grid side plate 5 can be removed during maintenance. The four corner hoisting positions 9 of the rectangular grid top plate 4 meet the requirements of installation and maintenance.

[0028] The overall gravity of the protective cover is greater than the buoyancy, and the protective cover is connected to the base of the underwater production system through the bottom. Figure 1 As shown, the four corners and four frames of the rectangular bottom frame 1 are provided with connection positions 11, and a plurality of the connection positions 11 are arranged at intervals on each frame. The protective cover and the underwater production system can be connected by bolts or other connection methods.

[0029] In addition, all the joints of the protective cover (between the frames, the four corners and four sides of the rectangular grid top plate 4 and the trapezoidal grid side plates 5) need to be rounded, and the overall surface is smooth without protruding components.

[0030] Although the preferred embodiments of the present invention have been described above in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which belong to the scope of protection of the present invention.

Claims

1. A split outer protective cover suitable for shallow underwater production systems at a water depth of 50m, characterized in that: include: A rectangular bottom frame (1) and a rectangular top frame (2), wherein the four vertices of the rectangular bottom frame (1) and the four vertices of the rectangular top frame (2) are connected via a side oblique frame (3) to form a four-sided pyramid structure support frame; A rectangular grid top plate (4), the rectangular grid top plate (4) being laid on the top surface of the tetrahedral structure supporting frame; and Trapezoidal grid side panels (5), the trapezoidal grid side panels (5) being laid on each side surface of the tetrahedral structure support frame; A rectangular bottom-layer additional frame (6) is arranged in the bottom surface of the tetrahedral structure support frame, and the projection of the rectangular bottom-layer additional frame (6) and the rectangular top-layer frame (2) on the bottom surface of the tetrahedral structure support frame coincides; a vertical frame (7) is connected between each vertex of the rectangular bottom-layer additional frame (6) and the corresponding vertex of the rectangular top-layer frame (2), and a bottom-surface inclined frame (8) is connected between each vertex of the rectangular bottom-layer additional frame (6) and the corresponding vertex of the rectangular bottom-layer frame (1); wherein the underwater production system is located in the rectangular parallelepiped space surrounded by the vertical frames (7); The angle between the side surface and the bottom surface of the quadrangular pyramid structure support frame is 30° to 60°.

2. The split outer protective cover according to claim 1, characterized in that: Four corners of the rectangular grid top plate (4) are provided with hanging positions (9).

3. The split outer protective cover according to claim 1, characterized in that: The trapezoidal grid side panel (5) on each side surface of the quadrangular pyramid structure support frame is composed of two trapezoidal side panel monomers (10).

4. The split outer protective cover according to claim 1, characterized in that: The four corners of the rectangular bottom frame (1) and the four frames constituting the rectangular bottom frame (1) are all provided with connection positions (11) for connecting the protective cover and the base of the underwater production system.

5. The split outer protective cover according to claim 1, characterized in that: A plurality of connection positions (11) are arranged at intervals on each frame of the rectangular bottom frame (1).

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