CN111119242A

CN111119242A - Movable seabed oil storage warehouse with isolation device for stopping oil leakage diffusion and construction method

Info

Publication number: CN111119242A
Application number: CN202010056156.7A
Authority: CN
Inventors: 黄灿光; 陈立强; 刘少忠
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-18
Filing date: 2020-01-18
Publication date: 2020-05-08
Also published as: WO2021143907A1

Abstract

The invention discloses a movable seabed oil storage house with an isolation device for stopping oil leakage diffusion and a construction method thereof, the movable seabed oil storage house comprises an isolation chamber and a plurality of oil storage tanks, wherein the isolation chamber comprises a bottom plate and a partial prestressed concrete wall, the partial prestressed concrete wall is vertical to the bottom plate and encloses a plurality of unit storage chambers with the bottom plate, a plurality of oil storage tanks are arranged and are respectively arranged in the centers of the inner cavities of the unit storage chambers, the top end surfaces of the oil storage tanks are communicated with two oil conveying pipes and an exhaust pipe, the bottom ends of the radial side walls of the oil storage tanks are provided with controllable switches of the oil storage tanks, the bottom ends of the inner cavities of the oil storage tanks are provided with water permeable plates, the bottom ends of the water permeable plates are provided with supporting structures communicated with pipelines, and the inner cavities of the oil storage tanks are. The invention does not occupy the area of the coastal river road surface, has no potential danger to the commercial and residential areas, can stop the oil leakage from diffusing into the sea (water), and can be transported by floating and moved.

Description

Movable seabed oil storage warehouse with isolation device for stopping oil leakage diffusion and construction method

Technical Field

The invention relates to the technical field of equipment oil storage, in particular to a movable seabed oil storage warehouse with an isolation device for stopping oil leakage diffusion and a construction method.

Background

The oil storage tank is located on land, site selection is a difficult problem, large oil carriers are convenient to park and transport oil when being close to seas or rivers, the large oil carriers are far away from residences, and common citizens love living environments at seas or rivers, which causes greater contradictions.

In addition to the above-mentioned contradictions, the onshore tanks are also affected by the environment, such as lightning strikes, temperature and temperature differences, electrostatic accumulations caused by dust, and, somewhat inadvertently, electrostatic sparks can cause fires or explosions. The automobile collision can also cause great disasters, and the occupied river, seaside and river land is more high-value land, and the automobile collision is an ideal scheme if the oil storage tank can be moved to the sea or on rivers and lakes, so that the oil storage tank does not occupy the land.

However, when the marine product is moved to the sea or on the water, especially to the sea bottom (underwater), the problem that the diffusion speed of the sea or water area is high and the diffusion range is wider than that of the land in case of oil leakage accident is solved. It is therefore a high risk decision to move storage tanks to sea or water before these problems are solved.

Disclosure of Invention

The invention aims to provide a movable seabed (underwater) oil storage with an isolation device for stopping oil leakage diffusion and a construction method thereof, so as to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: the invention discloses a movable seabed oil storage house with an isolation device for blocking oil leakage diffusion, which fully utilizes the characteristics that the volume weight of hazardous chemical substances such as petroleum, gasoline, diesel oil and the like is less than the volume weight of seawater or fresh water, and two liquids can be separated and do not have chemical reaction, and comprises an isolation chamber and oil storage tanks, wherein the isolation chamber comprises a bottom plate and a partial prestressed concrete (or equivalent high-strength high-performance new material) enclosing wall, the partial prestressed concrete enclosing wall is vertical to the bottom plate and encloses a plurality of unit storage chambers with the bottom plate, the bottom end of the partial prestressed concrete enclosing wall of the isolation chamber is provided with a controllable switch of the isolation chamber, the oil storage tanks are provided with a plurality of oil storage tanks and are respectively arranged in the centers of the inner cavities of the unit storage chambers, the top end surfaces of the oil storage tanks are communicated with two oil conveying pipes and two exhaust pipes, the adjacent oil storage tanks are communicated with each other through the, open the radial lateral wall bottom of oil storage tank has oil storage tank controllable switch, the controllable switch vertical height of isolation chamber is less than oil storage tank controllable switch, the radial lateral wall welding of the inner chamber bottom face of oil storage tank has the porous disk, the porous disk is located oil storage tank controllable switch's top, the bearing structure who takes the pipeline intercommunication is installed to the bottom of porous disk, bearing structure's bottom fixed mounting is at the inner chamber bottom face of oil storage tank, the inner chamber of oil storage tank is provided with the profit and separates the membrane and the top cap that floats, the top cap that floats is located the profit and separates the top of membrane.

Preferably, the partially prestressed concrete enclosure of the isolation chamber is above the designed maximum wave height of the sea area (water body).

Preferably, the bottom plate is fixed on a sand layer of the sea bottom (water bottom) through a sand slurry layer.

Preferably, the unit storage chamber has a rectangular cup-like or circular or oval or other shape in a top cross section.

Preferably, the unit storage chamber balance water does not use on-site seawater/river water, but uses import water.

Preferably, the unit storage chamber has a square cross section in a plan view.

Preferably, the oil storage tank is made of a steel plate or stainless steel with an anti-corrosion coating or an equivalent high-strength high-performance new material.

Preferably, the oil storage tank is cylindrical and umbrella-shaped.

Preferably, the two oil delivery pipes and the pipe wall of the exhaust pipe are both provided with control switches.

Preferably, a sealing strip is arranged at the edge position of the bottom end face of the floating top cover.

Preferably, the capacity ratio of the isolation chamber to the oil storage tank can be regarded as a safety factor of oil leakage, and 2 can be taken.

Preferably, the balance water of the unit storage chamber is not on-site seawater or fresh water, but is input by a pipeline, and the controllable switch of the isolation chamber is closed.

The construction method of the movable seabed oil storage warehouse with the isolation device for stopping oil leakage diffusion comprises the following steps:

A. manufacturing and hoisting of the isolation chamber: in a proper dock, a prestressed (reinforced) concrete structure is built in situ, and because the structure of partial prestressed concrete is simple, the construction speed is not slow, after the construction is finished, all seawater (fresh water) inlets and outlets are closed, and the seawater (fresh water) is transported out of the dock in a floating mode.

B. Manufacturing, installing and detecting the oil storage tank: the floating crane can be manufactured in blocks in a steel product processing plant and then transported to a port to help complete the assembly of the oil storage tank in an isolation room and perform leakage testing.

C. Constructing a seabed (water bed), and arranging a sand stone layer: and (4) cleaning soft soil at the seabed (underwater) until the sand layer capable of bearing the weight of the whole structure is formed on the installation site. If the soft soil is thick, the soft soil can be used for reinforcing and/or adopting a low pile cap pile foundation or a negative pressure suction cylinder foundation.

D. Pre-embedding: dragging the isolation chamber and the oil storage tank to the on-site alignment position, irrigating water in the isolation chamber to sink to the ground, placing the oil-water separation membrane and the floating top cover in the oil storage tank at the bottom and the top of the oil storage tank respectively, and pressing oil to store oil after the oil storage tank is filled with water naturally.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention can safely put the oil storage tank into the sea area (water area) for storage by arranging the isolation room, does not occupy coastal river lands, releases more offshore or coastal river lands, is far away from residences, reduces potential risks to residents, is convenient for oil carrier to stop and input oil products, is built at the bottom of the sea (underwater), has lower oil tank temperature than the same oil storage device on the land, has small temperature difference, does not accumulate static electricity, does not have the worry of lightning stroke, and can avoid wind.

2. The invention can stop the oil leakage from spreading into the sea (water) by arranging the isolation chamber, and the isolation chamber is built by partial prestressed concrete or equivalent high-strength high-performance new materials, is firm and can resist terrorist attack.

3. The invention adopts the modular design, is convenient to manufacture and install, and can be transported in a floating way and moved.

Drawings

FIG. 1 is an overall top view of an embodiment of the present invention;

FIG. 2 is a top view of a cell storage chamber structure according to an embodiment of the present invention;

FIG. 3 is an elevation view of a unit storage compartment structure according to an embodiment of the present invention;

FIG. 4 is a 3D wire frame perspective view of a unit storage compartment according to an embodiment of the present invention;

FIG. 5 is a diagram illustrating the relationship between oil and water under normal operating conditions according to an embodiment of the present invention;

FIG. 6 is a graph showing the relationship between oil and water in the case of an oil leak or a more severe failure in accordance with an embodiment of the present invention;

FIG. 7 is an elevational view of an oil storage tank of an embodiment of the present invention buried below the water surface;

FIG. 8 is a schematic of balance water in an oil storage tank using input water rather than field water in accordance with an embodiment of the present invention;

FIG. 9 is a first construction process showing the embodiment of the present invention; sink down

FIG. 10 is a diagram illustrating a second construction process according to an embodiment of the present invention; floor for sitting on

FIG. 11 is a diagram illustrating a third construction process according to the embodiment of the present invention; the tank is filled with water first

Fig. 12 is a diagram showing the use effect of the finished product according to the embodiment of the present invention: pressed-in oil-storing oil

In the figure: 1. a unit storage chamber; 2. an oil storage tank; 3. an air duct; 4. an oil delivery pipe; 5. an isolation chamber; 6. an exhaust pipe; 7. a partially prestressed concrete enclosure; 8. a base plate; 9. an isolation chamber controllable switch; 10. a control switch; 11. a sealing strip; 12. a floating top cover; 13. separating oil from water; 15. a controllable switch of the oil storage tank; 16. a sandstone layer; 17. a support structure; 18. a water permeable plate; 19. a water pipe; 25. an oil product; 26. and (3) water.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-8, the embodiment provides a movable seabed oil storage with an isolation device for blocking oil leakage diffusion, which comprises an isolation chamber 5 and an oil storage tank 2, wherein the isolation chamber 5 comprises a bottom plate 8 and a partial prestressed concrete (or equivalent high-strength high-performance new material) enclosing wall 7, the partial prestressed concrete enclosing wall 7 is perpendicular to the bottom plate 8 and encloses a plurality of unit storage chambers 1 with the bottom plate 8, the bottom end of the partial prestressed concrete enclosing wall 7 of the isolation chamber 5 is provided with an isolation chamber controllable switch 9, the oil storage tank 2 is provided with a plurality of oil storage tanks 2 and is respectively installed in the center of the inner cavity of the unit storage chamber 1, the top end surface of the oil storage tank 2 is communicated with two oil pipelines 4 and exhaust pipes 6, the adjacent oil storage tanks 2 are communicated with each other through the oil pipelines 4, the adjacent exhaust pipes 6 are communicated with each other through an air duct 3, the bottom end of the radial side wall of the, the radial lateral wall welding of the inner chamber bottom end face of oil storage tank 2 has water permeable plate 18, water permeable plate 18 is located the top of oil storage tank controllable switch 15, bearing structure 17 of taking the pipeline intercommunication is installed to water permeable plate 18's bottom, bearing structure 17's bottom fixed mounting is at the inner chamber bottom end face of oil storage tank 2, the inner chamber of oil storage tank 2 is provided with profit partition membrane 13 and unsteady top cap 12, unsteady top cap 12 is located the top that profit partition membrane 13, controllable switch 9 vertical position of isolation chamber will be less than the controllable switch 15 of oil storage tank 2, can not flow down and rise when spilling from oil storage tank 2 controllable switch 15 when preventing unexpected the emergence and stay in isolation chamber 5.

In this embodiment, the storage tanks 2 are conveniently placed by arranging a plurality of unit storage chambers 1, and the corresponding number of the storage tanks 2 can be determined according to the specific storage capacity, the isolation chamber 5 is provided with a partial prestressed concrete enclosure 7 which mainly bears the impact force of waves and the accidental collision damage influence of other equipment such as ships and the like, and serves as a support structure for supporting additional upper structural equipment, the oil-water separation membrane 13 is used for separating oil from seawater (fresh water), the water permeable plate 18 can prevent the oil-water separation membrane 13 from being lower than the vertical height of the controllable switch 15 of the storage tanks, the floating top cover 12 is used for preventing oil evaporation but can not completely isolate oil evaporation, so that when the concentration reaches a certain index, the exhaust is performed through the exhaust pipe 6, or the exhaust is performed when the concentration is set, the partial prestressed concrete enclosure 7 of the isolation chamber 5 has high strength, is not easy to be damaged, and can bear terrorism, in addition, the top end face of the oil storage tank 2 is optionally placed below the sea water (fresh water) level, and since the height of the partially prestressed concrete fence 7 is higher than the maximum wave height, oil leakage out of the sea (or out of rivers and lakes) can be prevented, and diffusion through the sea water (fresh water) can be prevented. When in use, the oil is pumped in through the oil pumping pipe 4, the oil pumping 25 is pumped in from the oil delivery pipe, the controllable switch 15 of the oil storage tank and the controllable switch 9 of the isolation chamber are opened, and the seawater (fresh water) 26 is pressed into the sea (water) until the sea is full of oil; for the same reason, the oil storage 25 is pumped away through the oil delivery pipe 4, the oil storage tank controllable switch 15 and the isolation chamber controllable switch 9 are opened, and simultaneously, the water 26 flows into the space occupied by the pumped oil storage from the oil storage tank controllable switch 15, so that the internal pressure and the external pressure are balanced.

Wherein, the volume ratio of the isolation chamber 5 to the oil storage tank 2 can be regarded as the safety factor of oil leakage, and can be 2.

Wherein the unit storage 1 balance water 26 is not in situ sea/river water but is fed with water 26 by means of the pipe 19, while the controllable switch 9 of the isolation chamber 5 is closed.

When the temporary oil storage tank 2 is used, the problem of long-term settlement of soft soil at the seabed (water bottom) does not need to be considered, and the temporary oil storage can be realized only by considering the relative settlement displacement between the oil storage units 1 and connecting the oil pipes by adopting a proper hose. When the ship needs to be moved to other places, all the oil storage tank controllable switches 15 and the isolation chamber controllable switches 9 close to the bottom plate 8 are turned off, then accumulated water and oil products in the isolation chamber 5 and the oil storage tank 2 are drained, the whole structure is supported on the water surface by huge buoyancy, and the ship drags the whole structure to a new sea area (water area) and then reinstalls the structure.

Example 2

Referring to fig. 1-8, a further improvement is made on the basis of embodiment 1: the partially prestressed concrete walls 7 of the isolation chamber 5 are higher than the designed maximum wave height of the sea area (water area). The purpose of the design is to prevent the part of the billow from entering the isolation chamber and failing to be discharged from the bottom opening 9 in time to return the wave flower to the sea (water) from the top, so that the oil liquid is leaked out with opportunity, and the wave is prevented from floating through the seawater (fresh water). The bottom plate 8 is fixed on a sand layer 16 at the seabed (water bottom) through a sand slurry layer. This is provided for the purpose of fixing the unit storage chamber 1 against movement by impact. The unit storage chamber 1 has a rectangular cup-like or circular or oval or other shape in a top cross section. The shape of the unit storage chamber 1 is not limited, and does not affect its oil storage function. The edge position of the bottom end surface of the floating top cover 12 is provided with a sealing strip 11. The sealing tape 11 can enhance the sealing property.

Wherein the unit storage chamber 1 has a square cross section in a plan view. The storage of the oil storage tank 2 is more convenient.

In the invention, the oil storage tank 2 is made of a steel plate or stainless steel with an anti-corrosion coating or an equivalent high-strength high-performance new material. Has good corrosion resistance. The oil storage tank 2 is cylindrical and umbrella-shaped. The pipe walls of the two oil delivery pipes 4 and the exhaust pipe 6 are provided with control switches 10. To facilitate control of oil drainage and venting.

Example 3

Referring to fig. 9 to 12, a method for constructing a mobile seabed oil reservoir with an isolation device for preventing oil leakage from spreading includes the steps of:

A. manufacturing and hoisting of the isolation chamber 5: in a proper dock, a prestressed (reinforced) concrete structure is built in situ, and because the structure of partial prestressed concrete is simple, the construction speed is not slow, after the construction is finished, all seawater (fresh water) inlets and outlets are closed, and the seawater (fresh water) is transported out of the dock in a floating mode.

B. Manufacturing, installation and inspection of the oil tank 2: it can be made in blocks in steel or new material processing plants and transported to harbours with floating cranes to help complete the assembly of the oil storage tanks 2 in the isolation room 5 and to perform leak tests.

C. The seabed (water bed) is constructed, and a sand stone layer 16 is arranged: the installation site cleans the soft soil at the seabed (water bottom) until it can carry a layer of sand 16 of the entire structure. If the soft soil is thick, the soft soil can be used for reinforcing and/or lowering the pile foundation of the pile cap.

D. Pre-embedding: hauling the isolation chamber 5 and the oil storage tank 2 to the on-site alignment position, watering the isolation chamber 5 to sink to the ground, placing the oil-water separation membrane 13 and the floating top cover 12 in the oil storage tank 2 at the bottom and the top of the oil storage tank 2 respectively, and pressing oil product oil storage after the oil storage tank is naturally filled with water.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be further noted that, unless otherwise specifically stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, integrally connected, mechanically connected, electrically connected, directly connected, connected through an intermediate medium, or connected through the insides of two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Take isolating device to stop portable seabed oil storage storehouse that the oil leak spreads, including isolation chamber (5) and oil storage tank (2), its characterized in that: the isolation chamber (5) comprises a bottom plate (8) and a partial prestressed concrete wall (7), the partial prestressed concrete wall (7) is perpendicular to the bottom plate (8) and is enclosed into a plurality of unit storage chambers (1) with the bottom plate (8), an isolation chamber controllable switch (9) is opened at the bottom end of the partial prestressed concrete wall (7) of the isolation chamber (5), the oil storage tanks (2) are provided with a plurality of oil storage tanks and are respectively installed in the centers of the inner cavities of the unit storage chambers (1), the top end faces of the oil storage tanks (2) are communicated with two oil conveying pipes (4) and exhaust pipes (6), the oil storage tanks (2) are adjacent to each other through the oil conveying pipes (4), the exhaust pipes (6) are adjacent to each other through air guide pipes (3), the bottom ends of the radial side walls of the oil storage tanks (2) are provided with oil storage tank controllable switches (15), the vertical heights of the isolation chamber controllable switches (9) are lower than the oil storage tank controllable switches (15), the radial lateral wall welding of the inner chamber bottom face of oil storage tank (2) has water permeable plate (18), water permeable plate (18) are located the top of oil storage tank controllable switch (15), bearing structure (17) of taking the pipeline intercommunication are installed to the bottom of water permeable plate (18), the bottom fixed mounting of bearing structure (17) is at the inner chamber bottom face of oil storage tank (2), the inner chamber of oil storage tank (2) is provided with profit partition membrane (13) and top cap (12) that floats, top cap (12) that floats are located profit partition membrane (13) top.

2. The mobile subsea reservoir with isolation device for intercepting the spread of leaked oil according to claim 1, wherein: the partial prestressed concrete wall (7) of the isolation chamber (5) is higher than the designed maximum wave height of the sea area (water area).

3. The mobile subsea reservoir with isolation device for intercepting the spread of leaked oil according to claim 1, wherein: the bottom plate (8) is fixed on a sand layer (16) at the bottom (water bottom) of the sea through a sand slurry layer.

4. The mobile subsea reservoir with isolation device for intercepting the spread of leaked oil according to claim 1, wherein: the unit storage chamber (1) has a rectangular cup-like or circular or oval-like or other shape in a top view cross section.

5. The mobile subsea reservoir with isolation device for intercepting the spread of leaked oil according to claim 4, wherein: the cross section of the unit storage chamber (1) in plan view is square.

6. The mobile subsea reservoir with isolation device for intercepting the spread of leaked oil according to claim 1, wherein: the oil storage tank (2) is made of a steel plate or stainless steel with an anti-corrosion coating or a high-performance high-strength composite new material.

7. The mobile subsea reservoir with isolation device for intercepting the spread of leaked oil according to claim 1, wherein: the oil storage tank (2) is cylindrical and umbrella-shaped.

8. The mobile subsea reservoir with isolation device for intercepting the spread of leaked oil according to claim 1, wherein: and the two oil delivery pipes (4) and the pipe wall of the exhaust pipe (6) are provided with control switches (10).

9. The mobile subsea reservoir with isolation device for intercepting the spread of leaked oil according to claim 1, wherein: and a sealing strip (11) is arranged at the edge of the bottom end surface of the floating top cover (12).

10. The mobile subsea reservoir with isolation device that blocks the spread of leaked oil according to claim 1, comprising the steps of:

A. manufacturing and hoisting of the isolation chamber (5): in a proper dock, a part of prestressed (reinforced) concrete structure is built in situ, and because the part of prestressed concrete structure is simple, the construction speed is not slow, after the construction is finished, all seawater (fresh water) inlets and outlets are closed, and the seawater (fresh water) is transported out of the dock in a floating mode.

B. Manufacturing, installation and inspection of the oil storage tank (2): can be manufactured in blocks in a steel product processing plant and then transported to a port by using a floating crane to help complete the assembly of the oil storage tank (2) in the isolation room (5) and carry out leakage test.

C. Constructing a seabed (water bed), and arranging a sand stone layer (16): the installation site cleans the soft soil at the seabed (underwater) until the sand layer (16) can bear the whole structure. If the soft soil is thick, the soft soil can be reinforced or a pile foundation of a low pile cap at the bottom of the sea (underwater) or a negative pressure suction bucket foundation.

D. Pre-embedding: dragging the isolation chamber (5) and the oil storage tank (2) to the on-site alignment position, watering the isolation chamber (5) to sink to the ground, placing an oil-water separation membrane (13) and a floating top cover (12) in the oil storage tank (2) at the bottom and the top of the oil storage tank (2) respectively, and pressing oil for oil storage after the oil storage tank is filled with water naturally.