Flexible sealing device of split type underwater spilled oil collecting cover and collecting cover thereof

Abstract

The invention discloses a split type underwater spilled oil collecting cover flexible sealing device and a collecting cover thereof. Comprising a pair of elastic bag bodies which are oppositely arranged on the inner edge of a crack of a collecting cover; an oil gelling agent is arranged in the elastic bag body; the inner end faces of the pair of elastic bag bodies are attached to each other. The plurality of injection holes are uniformly formed in the inner sides of the upper parts of the pair of elastic bag bodies and are used for extruding the elastic bag bodies after the stand column enters the crack, the oil gelling agent in the elastic bag bodies is sprayed out from the injection holes after the elastic bag bodies are extruded, and the oil gelling agent reacts with the spilled oil to generate jelly-shaped gel to seal the gap between the stand column and the elastic bag bodies. The device has the beneficial effects that after the stand column enters the crack, the elastic bag body is extruded, after the elastic bag body is extruded, the oil gelling agent in the elastic bag body is sprayed out from the injection hole, the oil gelling agent reacts with spilled oil to generate jelly-shaped gel, and the gap between the stand column and the elastic bag body is sealed.

Description

Technical Field

[0001] The invention relates to the technical field of oil spill collection, and in particular to a split-type underwater oil spill collection cover flexible sealing device and a collection cover thereof. Background Art

[0002] As the world's economic level continues to improve, offshore oil development technology has also gradually achieved great development, allowing deepwater oil and gas resources to be effectively developed, and the development activities of deepwater offshore oil and gas resources are also gradually increasing. In recent years, the pace of global offshore oil and gas development has significantly accelerated, and production has steadily increased. However, the risk of underwater oil spills is also increasing. After an underwater oil spill accident occurs, the underwater oil will migrate in the water body in the form of a plume and continue to enter the marine environment, causing serious marine pollution and ecological damage. Underwater oil spills need to be recovered as soon as possible to avoid long-term negative impacts on the local marine ecological environment.

[0003] The collection hood is a key underwater oil spill control device. These collection hoods cover the oil spill point of the underwater facilities, collect the floating oil spill, and facilitate further recovery through pipelines, thereby reducing marine pollution. Because the columns and other structures above the underwater oil and gas facilities will interfere with the coverage of the collection hood, the conventional collection hood cannot fully play the collection function. The "Split emergency containment dome" disclosed in the invention patent US9140104B2 provides a split-type underwater oil spill collection hood. The collection hood can clamp the underwater facilities such as columns that are spilling oil into the crack, and then use a mechanical telescopic device to close the crack, thereby realizing the oil spill collection function of the collection hood. However, this closing method requires manual telescopic closure through mechanical methods such as underwater robots, hydraulic control and electric control, and the degree of automation is low. In addition, the closing method of the mechanical telescopic device is difficult to achieve tight closure and often has gaps. Therefore, the oil spill can still escape from the closed gap of the mechanical telescopic device, and it is difficult to achieve full collection of the oil spill. Although the patent proposes a preferred method of magnetic attraction to lock the closing device, it still uses a mechanical device, which makes it difficult to avoid the problem of closing gaps. In summary, the existing patents cannot solve the problems of low automation and loose closure. Summary of the invention

[0004] The object of the present invention is to provide a flexible sealing device for a crack-type underwater oil spill collection cover, wherein a pair of elastic bladders are arranged at the inner edge of the crack of the crack-type underwater oil spill collection cover, an oil gelling agent is arranged in the elastic bladder, and a plurality of injection holes are evenly distributed on the inner side of the upper part of the elastic bladder. When a column enters the crack, the elastic bladder is squeezed, and the oil gelling agent inside the elastic bladder is ejected from the injection hole after the elastic bladder is squeezed, and the oil gelling agent reacts with the spilled oil to generate a jelly-like gel to seal the gap between the column and the elastic bladder.

[0005] Another object of the present invention is to provide a collection cover, which is provided with a crack extending from the edge to the middle of the cover body, and a crack-type underwater oil spill collection cover flexible sealing device is provided at the crack, which can spray out an oil gelling agent after the column enters the crack, and the oil gelling agent reacts with the spilled oil to produce a jelly-like gel to seal the gap between the column and the elastic bladder.

[0006] To achieve the above object, the present invention adopts the following technical solutions, including:

[0007] A pair of elastic capsules are respectively arranged on the inner edges of the cracks of the collecting cover; an oil gelling agent is arranged in the elastic capsules; and the inner end surfaces of the pair of elastic capsules are in contact with each other;

[0008] A plurality of injection holes are evenly distributed on the inner side of the upper part of the pair of elastic bladder bodies, and are used to squeeze the elastic bladder body after the column enters the crack. After the elastic bladder body is squeezed, the oil gelling agent inside is sprayed out from the injection holes, and the oil gelling agent reacts with the spilled oil to generate a jelly-like gel, thereby sealing the gap between the column and the elastic bladder body.

[0009] Preferably, the oil gelling agent is a suspension of a liquid oil gelling agent or a solid oil gelling agent.

[0010] Preferably, the liquid oil gelling agent is an 8% aqueous solution of N-lauroyl glutamic acid dibutylamide.

[0011] Preferably, the solid oil gelling agent is mannitol vinyl caprylate, and the suspension of the solid oil gelling agent is prepared by mixing mannitol vinyl caprylate, glycerol, sodium carboxymethyl cellulose, Tween 80, sodium citrate and water in a mass ratio of 100-200:30-100:3-10:10-30:3-10:1000, and grinding until the suspension particle fineness is less than 30 microns.

[0012] Preferably, the amount of the oil gelling agent added is 80-99% of the volume of the elastic bladder.

[0013] A collection cover comprises a cover body, on which a crack extending from an edge to the middle of the cover body is provided, and at the crack is provided any of the above-mentioned split-type underwater oil spill collection cover flexible sealing devices.

[0014] Preferably, a hose communicating with the interior of the cover body is provided at the center of the outer end surface of the cover body.

[0015] Preferably, it also includes:

[0016] A plurality of support rods, the upper ends of which are evenly distributed on the edges of the cover body and are vertically arranged to support the cover body.

[0017] The invention has the beneficial effect that the oil gelling agent can be sprayed out after the column enters the crack, and the oil gelling agent reacts with the spilled oil to generate a jelly-like gel to seal the gap between the column and the elastic bladder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional flexible sealing device for a split-type underwater oil spill collection cover according to the present invention Figure 1 .

[0019] Figure 2 A three-dimensional flexible sealing device for a split-type underwater oil spill collection cover according to the present invention Figure 2 .

[0020] Figure 3 A three-dimensional collecting cover of the present invention Figure 1 .

[0021] Figure 4 A three-dimensional collecting cover of the present invention Figure 2 . DETAILED DESCRIPTION

[0022] The invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement it according to the description.

[0023] It should be understood that terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or other elements or combinations thereof.

[0024] like Figure 1-4 As shown, a split-type underwater oil spill collection cover flexible sealing device 1 of the present invention comprises:

[0025] A pair of elastic capsules 110 are respectively arranged at the inner edges of the crack 220 of the collecting cover 2 opposite to each other; an oil gelling agent is arranged in the elastic capsules 110; and the inner end surfaces of the pair of elastic capsules 110 are in contact with each other;

[0026] A plurality of injection holes 120 are evenly arranged on the inner side of the upper part of the pair of elastic capsules 110, and are used to squeeze the elastic capsule 110 after the pillar 3 enters the crack 220. After the elastic capsule 110 is squeezed, the internal oil gelling agent 130 is ejected from the injection holes 120, and the oil gelling agent reacts with the spilled oil to generate a jelly-like gel 140, which seals the gap between the pillar 3 and the elastic capsule 110. As a preferred embodiment, the oil gelling agent is a suspension of a liquid oil gelling agent or a solid oil gelling agent. The liquid oil gelling agent is an 8% aqueous solution of N-lauroyl glutamic acid dibutylamide. The solid oil gelling agent is mannitol octanoate vinyl ester, and the suspension of the solid oil gelling agent is obtained by mixing mannitol octanoate vinyl ester, glycerol, sodium carboxymethyl cellulose, Tween 80, sodium citrate and water in a mass ratio of 100-200:30-100:3-10:10-30:3-10:1000, and grinding until the particle fineness of the suspension is less than 30 microns. The amount of the oil gelling agent added is 80-99% of the volume of the elastic capsule.

[0027] A collection hood 2, comprising: a hood body 210, on which a crack 220 extending from the edge to the middle of the hood body 210 is provided, and at the crack 220, any of the above-mentioned split-type underwater oil spill collection hood flexible sealing devices 1 is provided. As a preferred embodiment, a hose 230 communicating with the inside of the hood body is provided at the center of the outer end surface of the hood body 210. As a further preferred embodiment, it also includes: a plurality of support rods 240, the upper ends of which are evenly distributed on the edges of the hood body 210, vertically arranged, and used to support the hood body 210.

[0028] When an underwater oil and gas facility 4 connected to the column 3 has an oil leak 5, the collection cover 2 is lowered into the leaking place, and then the column 3 is passed through the crack 220 on the cover body 210, the elastic capsule 110 of the split-type underwater oil spill collection cover flexible sealing device 1 is squeezed, and the oil gelling agent is sprayed from the injection hole 120. The oil gelling agent reacts with the oil spill to produce a jelly-like gel, which seals the gap between the column 3 and the elastic capsule 110. Under the action of buoyancy, the leaked oil 5 is collected in the cover body 210 to the center of the cover body 210, and is sucked out through the hose 230, completing the oil recovery.

[0029] In summary, the flexible sealing device 1 of the split-type underwater oil spill collection cover of the present invention can spray out an oil gel after the column 3 enters the crack 220. The oil gel reacts with the spilled oil to produce a jelly-like gel to seal the gap between the column 3 and the elastic bladder 110.

[0030] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A split-type underwater oil spill collection cover flexible sealing device, characterized in that: include: A pair of elastic capsules, which are respectively arranged opposite to each other at the inner edges of the crack of the collecting cover; An oil gelling agent is provided in the elastic bladder; the inner end surfaces of the pair of elastic bladders are in contact with each other; A plurality of injection holes are evenly distributed on the inner side of the upper part of the pair of elastic bladder bodies, and are used to squeeze the elastic bladder body after the column enters the crack. After the elastic bladder body is squeezed, the oil gelling agent inside is sprayed out from the injection holes, and the oil gelling agent reacts with the spilled oil to generate a jelly-like gel, thereby sealing the gap between the column and the elastic bladder body.

2. The flexible sealing device of the split-type underwater oil spill collection cover according to claim 1 is characterized in that: The oil gelling agent is a liquid oil gelling agent or a solid oil gelling agent suspension.

3. The flexible sealing device of the split-type underwater oil spill collection cover according to claim 2 is characterized in that: The liquid oil gelling agent is an 8% aqueous solution of N-lauroyl glutamic acid dibutylamide.

4. The flexible sealing device of the split-type underwater oil spill collection cover according to claim 2 is characterized in that: The solid oil gel suspension is composed of mannitol octanoate vinyl ester, glycerol, sodium carboxymethyl cellulose, Tween 80, sodium citrate and water in a mass ratio The solid oil gelling agent suspension is prepared by mixing and grinding the solid oil gelling agent in a ratio of 100-200:30-100:3-10:10-30:3-10:1000, and the particle fineness of the solid oil gelling agent suspension is less than 30 microns.

5. The split-type underwater oil spill collection cover flexible sealing device according to claim 1 is characterized in that: The added amount of the oil gelling agent is 80-99% of the volume of the elastic bladder.

6. A collecting hood, characterized in that: include: A cover body, wherein a crack extending from the edge to the middle of the cover body is provided on the cover body, and a flexible sealing device of a split-type underwater oil spill collection cover according to any one of claims 1-5 is provided at the crack.

7. The collecting hood according to claim 6, characterized in that: A hose communicating with the interior of the cover body is provided at the center of the outer end surface of the cover.

8. The collecting hood according to claim 6, characterized in that: Also includes: A plurality of support rods, the upper ends of which are evenly distributed on the edges of the cover body and are vertically arranged to support the cover body.

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