CN215099616U

CN215099616U - A new type of submarine oil storage tank

Info

Publication number: CN215099616U
Application number: CN202120795760.1U
Authority: CN
Inventors: 辛志康; 石洪源
Original assignee: Ludong University
Current assignee: Ludong University
Priority date: 2021-04-19
Filing date: 2021-04-19
Publication date: 2021-12-10
Anticipated expiration: 2031-04-19
Also published as: GB202205246D0; GB2607429A; GB2607429B

Abstract

The utility model relates to the field of oil storage tanks, in particular to a novel submarine oil storage tank. It consists of an oil storage tank shell and a base for installing the oil storage tank shell. The two are disassembled and connected. The base is fixed on the seabed through the connecting piece, and a wave-shaped drainage groove is formed around the outer wall of the oil storage tank shell. The top of the oil tank shell is provided with a sealing cover, and the sealing cover is provided with an oil outlet pipe, an oil inlet pipe, and an inflatable pipe. Among them, a one-way valve is installed on the oil outlet pipe and the oil inlet pipe, and a two-way valve is installed on the inflatable pipe. The utility model has ingenious structural design, which can weaken the wave action force, disperse the upper and lower wave action force of the tank body, and increase the stability and safety of the tank body in the seawater environment.

Description

Novel seabed oil storage tank

Technical Field

The utility model relates to an oil storage tank field especially relates to a novel submarine oil storage tank.

Background

In recent years, with the continuous and high-speed development of economy in China, the dependence on basic energy sources is greater and greater. The petroleum is used as a basic energy product, and the production, marketing, import and export changes of the petroleum are closely related to the changes of economic situations at the upstream of the production industry. Nowadays, China is a big country of world petroleum consumption, and the petroleum consumption in China still keeps fast increasing all the year round comprehensively, and particularly the increase of the petroleum consumption in finished products is obvious.

With the increasing demand for oil reserves, the dependence on imported oil further rises, the domestic reserves are very small, the energy safety problem is far less than that of other developed countries, and the establishment of strategic oil reserves is urgent. Therefore, China must enhance the exploitation and the storage of submarine oil.

However, with the development of offshore oil drilling and production operations, the number of offshore oil field well groups is greatly increased, the yield is greatly improved, and the requirements on storage and transportation capacity, efficiency and working continuity of an offshore storage and transportation system are continuously improved while the current energy crisis is relieved. At present, oil storage is mostly carried out through the oil storage tank that is connected with the platform, and current oil storage tank mainly has following weak point:

1. the outer wall of the oil storage tank is of a smooth structure, so that the dispersed seawater cannot be dredged, the wave action force is large, and the stability is poor;

2. the pressure difference between the inside and the outside of the oil storage tank is large, the pressure of the storage tank is large under the action of seawater pressure, and the service life of the oil storage tank is short;

3. the oil storage tank is directly placed on the seabed without any support, and is easy to be impacted by waves and fall down.

Therefore, there is a need for a subsea storage tank that solves the above-mentioned technical problems.

Disclosure of Invention

The utility model aims at solving the weak point that prior art exists, provide a structural design is ingenious, can weaken wave effort to wave effort about the disperseing jar body increases the novel submarine oil storage tank of the stability and the security of jar body in the sea water environment.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a novel seabed oil storage tank is characterized by comprising an oil storage tank shell and a base for installing the oil storage tank shell, wherein the oil storage tank shell and the base are detachably connected;

in foretell a novel submarine oil storage tank, the base includes the hexagon mount pad, installs a plurality of support arms along the mount pad periphery, and mount pad upper surface central point department offers the cylindricality mounting hole that is used for installing the oil storage tank casing, is equipped with the internal thread on the lateral wall in the cylindricality mounting hole, is equipped with the external screw thread that uses with the interior screw-thread fit on the outer wall of oil storage tank casing bottom, and the mount pad lower surface is equipped with the hexagon support that imbeds the seabed.

In the novel seabed oil storage tank, a plurality of triangular supporting plates are arranged around the support.

In the novel seabed oil storage tank, the number of the supporting arms is six, and the six supporting arms are arranged at the periphery of the mounting seat at intervals.

In the novel seabed oil storage tank, the supporting arm is in an I shape.

In foretell a novel seabed oil storage tank, still install the blow off pipe on the sealed lid, blow off pipe one end is located sealed outside the lid, the other end locates the oil storage tank casing and extends to the tank bottoms, and the blow off pipe is located the outside one end of sealed lid and installs the check valve.

In foretell a novel seabed oil storage tank, oil storage tank shell shape is under narrow pear shape wide, including neck and column portion, neck and column portion be the integrative structure that link up from top to bottom, and the neck external diameter is less than column portion external diameter, dredges the recess and offers on column portion outer wall.

In the novel seabed oil storage tank, the inner wall of the shell of the oil storage tank is provided with a protective coating.

In the novel seabed oil storage tank, the flow dredging grooves penetrate through the vertical grooves and the vertical bulges in the whole height direction of the columnar part, and the vertical grooves and the vertical bulges are alternately arranged along the circumference of the columnar part.

In the novel seabed oil storage tank, one end of the oil outlet pipe is positioned outside the sealing cover, and the other end of the oil outlet pipe extends downwards to the bottom of the oil storage tank shell.

Compared with the prior art, the utility model discloses the advantage lies in:

1. through the flow dredging grooves, dispersed seawater can be dredged, so that the acting force of waves on the oil storage tank body is weakened, and the stability of the oil storage tank body in a seawater environment is improved.

2. The oil storage tank shell is in a pear shape with a narrow upper part and a wide lower part, and the diameter of the upper part of the oil storage tank body is reduced by the pear-shaped structure due to the fact that the largest wave force position is the water level position, so that the wave acting force is further reduced.

3. The base comprises mount pad and support arm, and the support arm part embedding seabed ground, part are located the seabed top, can play fine cushioning effect to the effort of equidirectional not through the base, and then the effectual effect that plays the protection to the device can improve seabed geological conditions, weakens the harm of seismic force to the jar body, improves the stability of oil storage tank body in sea appearance environment.

4. The oil storage tank shell is made of low alloy steel, so that the tank body structure is firmer, and meanwhile, the tank body is internally provided with a high-oil-resistance and high-explosion-resistance protective coating, so that the service life is long.

5. Through the gas tube, not only can guarantee the balance of the inside and outside pressure difference of the tank, but also guarantee that the oil storage tank is acted by smaller seawater pressure, improve the strength of the tank body, and simultaneously, the speed of nearly oil discharge can be increased by matching with the inflation and deflation, and the working efficiency is improved.

6. The oil storage tank shell is of a double-layer structure, a heat insulation interlayer is arranged between the double-layer structure, the heat insulation interlayer can enable substances in the oil storage tank body to be in a stable environment, the risk of substance explosion in the tank due to temperature change is reduced, and safety is improved.

Drawings

Fig. 1 is a schematic structural diagram of a novel seabed oil storage tank provided by the utility model;

FIG. 2 is a schematic structural view of a pillar portion;

FIG. 3 is a schematic structural view of the front side of the base;

FIG. 4 is a schematic view of the structure of the back side of the base;

FIG. 5 is a schematic structural view of an oil storage tank housing;

FIG. 6 is a cross-sectional view of the oil reservoir housing;

fig. 7 is a schematic structural view of the sealing cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

the novel seabed oil storage tank comprises an oil storage tank shell 1 and a base 2 used for installing the oil storage tank shell 1, wherein the oil storage tank shell 1 and the base 2 are detachably connected, the base 2 is fixed on the seabed through a connecting piece, a wave-shaped flow dredging groove 3 is formed around the outer wall of the oil storage tank shell 1, a sealing cover 4 is arranged at the top of the oil storage tank shell 1, an oil outlet pipe 5, an oil inlet pipe 6 and an inflation pipe 7 are arranged on the sealing cover 4, wherein a one-way valve 9 is arranged on each of the oil outlet pipe 5 and the oil inlet pipe 6, and a two-way valve 10 is arranged on the inflation pipe 7;

the specific structure of the base 2: base 2 includes hexagon mount pad 11, install a plurality of support arms 14 along 11 peripheries of mount pad, 11 upper surface central point departments of mount pad offer the cylindricality mounting hole 12 that is used for installing oil storage tank casing 1, be equipped with the internal thread on the 12 inside walls of cylindricality mounting hole, be equipped with the external screw thread that uses with the internal thread cooperation on the 1 bottom outer wall of oil storage tank casing, 11 lower surfaces of mount pad are equipped with the hexagonal support 13 in embedding seabed, be equipped with a plurality of triangle-shaped backup pads 17 around the support 13, support arm 14 quantity is six, the installation in 11 peripheries of mount pad at six support arm 14 intervals. The support arm 14 is i-shaped.

Still install blow off pipe 8 on sealed lid 4, blow off pipe 8 one end is located sealed lid 4 outsidely, the other end locate in oil storage tank casing 1 and extend to the tank bottoms, and blow off pipe 8 is located the outside one end of sealed lid 4 and installs check valve 9.

The shape of the oil storage tank shell 1 is pear-shaped with narrow top and wide bottom, and comprises a neck 15 and a columnar part 16, wherein the neck 15 and the columnar part 16 are of an integrated structure which is communicated up and down, the outer diameter of the neck 15 is smaller than that of the columnar part 16, and the flow-dredging groove 3 is arranged on the outer wall of the columnar part 16.

The inner wall of the oil storage tank shell 1 is provided with a protective coating.

The flow-dredging grooves 3 penetrate through the vertical grooves 19 and the vertical protrusions 18 in the whole height direction of the columnar portion 16, and the vertical grooves 19 and the vertical protrusions 18 are alternately arranged along the circumference of the columnar portion 16.

The oil storage tank shell 1 is of a double-layer structure, and a heat preservation interlayer is arranged between the double-layer structure.

One end of the oil outlet pipe 5 is positioned outside the sealing cover 4, and the other end of the oil outlet pipe extends downwards to the bottom of the oil storage tank shell 1.

The utility model discloses structural design is ingenious, can weaken wave effort to wave effort about the disperseing jar body increases the stability and the security of jar body in the sea water environment.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. a novel seabed oil storage tank is characterized in that comprising the oil storage tank shell and the base for installing the oil storage tank shell, the two are disassembled and connected, and the base is fixed on the seabed by the connector, surrounding the oil storage tank shell The outer wall is provided with a wave-shaped drainage groove, and the top of the oil storage tank shell is provided with a sealing cover. A two-way valve is installed on the inflation pipe.

2. A new type of subsea oil storage tank according to claim 1, characterized in that the base comprises a hexagonal mounting seat, a plurality of support arms are installed along the outer periphery of the mounting seat, and a central position on the upper surface of the mounting seat is provided There is a cylindrical mounting hole for installing the oil storage tank shell. The inner side wall of the cylindrical mounting hole is provided with an internal thread. There are hexagonal supports embedded in the sea floor.

3. A new type of submarine oil storage tank according to claim 2, characterized in that a plurality of triangular support plates are arranged around the support.

4. A new type of subsea oil storage tank according to claim 2, characterized in that the number of the support arms is six, and the six support arms are installed on the outer periphery of the mounting seat at intervals.

5. A new type of subsea oil storage tank according to claim 4, characterized in that the support arm is I-shaped.

6. A new type of subsea oil storage tank according to claim 1, characterized in that a sewage pipe is also installed on the sealing cover, one end of the sewage pipe is located outside the sealing cover, and the other end is located in the oil storage tank shell and extends To the bottom of the tank, a one-way valve is installed at the end of the drain pipe located outside the sealing cover.

7. A new type of submarine oil storage tank according to claim 1 is characterized in that the shape of the oil storage tank shell is a pear shape with a narrow upper and a wider lower, including a neck and a columnar part, and the neck and the columnar part are The upper and lower penetrating integrated structure, the outer diameter of the neck is smaller than the outer diameter of the columnar part, and the drain groove is opened on the outer wall of the columnar part.

8. A new type of submarine oil storage tank according to claim 1, characterized in that the inner wall of the oil storage tank shell is provided with a protective coating.

9. A new type of submarine oil storage tank according to claim 7, characterized in that the scavenging groove runs through the vertical grooves and vertical depressions of the entire height direction of the columnar part, and the vertical grooves, vertical grooves, vertical grooves The convex and concave are alternately arranged along the circumference of the columnar part.

10. A new type of subsea oil storage tank according to claim 1, wherein one end of the oil outlet pipe is located outside the sealing cover, and the other end extends downward to the bottom of the oil storage tank shell.