Offshore spilled oil recovery device

Abstract

The utility model discloses an offshore spilled oil recovery device which comprises a recovery tank, a sealing mechanism is arranged on the recovery tank, the sealing mechanism comprises a connecting sleeve, a countercurrent sleeve, a countercurrent groove, a sealing sleeve, a push spring, a through-flow sleeve and a through-flow groove, the connecting sleeve is installed on the recovery tank, the countercurrent sleeve is installed in the connecting sleeve, and the countercurrent groove is installed in the through-flow groove. The reverse flow groove is formed in the outer wall of the reverse flow sleeve, the sealing sleeve slides in the reverse flow sleeve, the push spring is installed on the inner wall of the reverse flow sleeve, the through-flow sleeve is installed on the outer side of the connecting sleeve, the through-flow groove is formed in the outer wall of the through-flow sleeve, and when the draw-off pump is started to generate negative pressure, the sealing sleeve slides along the polygonal center rod under the action of the push spring; the sealing sleeve, the countercurrent groove and the through-flow groove form a flowing channel, spilled oil can automatically enter, meanwhile, it is ensured that the sealing sleeve can return in time through the arrangement of the tension spring, and a reliable sealing state is formed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of petroleum operation, more specifically, it relates to a marine oil spill recovery device. BACKGROUND

[0002] In the process of oil exploration, development, refining and storage, due to unexpected accidents or operation errors, crude oil or oil products are leaked from the operation site or the reservoir, and the oil spill flows to the ground, water surface, beach or sea surface. At the same time, due to the difference in oil quality composition, a piece of oil film with different thickness is formed, which is called oil spill.

[0003] The Chinese patent application No. CN202020690121.4 discloses a marine oil spill recovery device, which has the beneficial effect of placing seawater and marine oil spill into a sealed environment for recovery, realizing the beneficial effect of not being affected by wind and waves during the recovery process, and avoiding the problem of low recovery efficiency caused by high wind and waves on the sea surface. However, before use, the recovery tank usually needs to be filled with seawater to ensure good sealing and recovery effect when the recovery device is put into use. This pre-filling operation not only increases the complexity of the preliminary preparation work, but also delays the best recovery time in an emergency, affecting the efficiency of oil spill recovery.

[0004] During the recovery process of marine oil spill, the recovery device needs to be frequently connected and detached with the conveying pipeline. In the prior art, the connection between the recovery container and the conveying pipeline is usually screw connection or flange connection. These connection methods need to be completed through multiple rotations or multiple bolt fastening, which is difficult to operate in the marine operating environment, time-consuming, and prone to leakage due to improper connection. UTILITY MODEL CONTENT

[0005] (I) Technical problem solved

[0006] In view of the problems existing in the prior art, the utility model provides a marine oil spill recovery device to solve the technical problem of complex preliminary preparation work mentioned in the background.

[0007] (II) Technical scheme

[0008] To achieve the above object, the utility model provides following technical scheme: a kind of offshore oil spill recovery device, including recovery tank, sealing mechanism is arranged on the recovery tank, the sealing mechanism includes connecting sleeve, counterflow sleeve, counterflow groove, sealing sleeve, push spring, through-flow sleeve and through-flow groove, the connecting sleeve is installed on recovery tank, the counterflow sleeve is installed in connecting sleeve, the counterflow groove is arranged in counterflow sleeve outer wall, the sealing sleeve slides in counterflow sleeve, the push spring is installed in counterflow sleeve inner wall, the through-flow sleeve is installed in connecting sleeve outside, the through-flow groove is arranged in through-flow sleeve outer wall, the recovery tank outer wall is provided with connecting mechanism, the connecting mechanism includes clamping sleeve, connecting spring, clamping block, unlocking block, unlocking sleeve, unlocking groove, connecting pipe, clamping groove and limiting mechanism, the clamping sleeve is installed on the recovery tank outer wall, the connecting spring is installed in clamping sleeve inner wall, the clamping block is installed in connecting spring one end, the unlocking block is installed in clamping block outer end, the unlocking sleeve rotates in clamping sleeve outer wall, the unlocking groove is arranged on the unlocking sleeve, the connecting pipe is inserted in clamping sleeve, and the clamping groove is arranged on the connecting pipe outer wall.

[0009] The utility model further sets up, the unlocking block is slidably installed in unlocking groove, ensure that unlocking action is stable and reliable, prevent the occurrence of jamming phenomenon.

[0010] The utility model further sets up, counterflow sleeve and through-flow sleeve between installation are equipped with center pole, center pole is connected with sealing sleeve sliding, guarantee the movement accuracy of sealing sleeve, improve sealing effect.

[0011] The utility model further sets up, center pole is set to polygon, prevent sealing sleeve from rotating in the movement process, improve sealing reliability.

[0012] The utility model further sets up, and spring is connected between sealing sleeve and through-flow sleeve, and sealing sleeve can reset in time, maintains the sealing state of system.

[0013] The utility model further sets up, and corrugated pipe is equipped on connecting pipe, and corrugated pipe is connected with external extraction pump, reduces pipeline stress, improves the reliability of connection.

[0014] The utility model further sets up, and sealing ring is equipped between connecting pipe and clamping sleeve, prevents oil leakage, guarantees the sealing performance of connecting place.

[0015] The utility model further sets up, and the limiting mechanism includes limiting sleeve, limiting rod, limiting hole and compression spring, limiting sleeve is slidably installed in clamping sleeve outer wall, limiting rod is provided with multiple groups and is installed in limiting sleeve bottom surface, limiting hole is provided with multiple groups and is distributed on unlocking sleeve, and compression spring is provided with multiple groups and both ends are connected with limiting sleeve and clamping sleeve respectively, and this design guarantees the reliability of connection state, guarantees the simplicity of operation, provides guarantee for the safe and stable operation of whole device.

[0016] (III) Advantages

[0017] Compared with the prior art, the offshore oil spill recovery device has the following

[0018] Advantages:

[0019] 1. By setting the sealing mechanism on the recovery tank, the cooperation of components such as connecting sleeve, reverse flow sleeve, sealing sleeve, etc. can realize the sealing effect without pre-injection of seawater. When the extraction pump is started to generate negative pressure, the sealing sleeve slides along the polygon center rod under the action of the push spring, forming a flow channel with the reverse flow groove and the flow groove, realizing the automatic entry of the oil spill. At the same time, the setting of the tension spring ensures that the sealing sleeve can be returned in time to form a reliable sealing state. This design completely avoids the problem of pre-injection of water in traditional technology, greatly improving the use efficiency and emergency response speed of the device.

[0020] 2. The quick connection structure composed of clamping sleeve, connecting spring, clamping block, etc. replaces the traditional threaded or flange connection method. By rotating the unlocking sleeve to drive the unlocking block to slide in the unlocking groove, the clamping state of the clamping block and the clamping groove is controlled, realizing the quick connection and separation of the connecting pipe and the clamping sleeve. Cooperating with the setting of the corrugated pipe and the sealing ring, not only the sealing of the connection is ensured, but also good flexible connection effect is provided. This design greatly simplifies the connection operation, improves the offshore operation efficiency, and effectively prevents oil leakage.

[0021] 3. By cooperating components such as limiting sleeve, limiting rod, compression spring, etc., in normal working state, a plurality of limiting rods are inserted into the limiting hole on the unlocking sleeve under the action of the compression spring, reliably limiting the rotation of the unlocking sleeve and preventing accidental unlocking. When disassembly is needed, the limiting rod can be separated from the limiting hole by pushing the limiting sleeve upward, and the limiting state is released. This design not only ensures the reliability of the connection state, but also ensures the simplicity of the operation, providing protection for the safe and stable operation of the entire device. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole structure schematic diagram of an offshore oil spill recovery device in the utility model;

[0023] Figure 2 It is a cross-sectional structure schematic diagram of a recovery tank in the utility model;

[0024] Figure 3 It is a cross-sectional structure schematic diagram of a sealing mechanism in the utility model;

[0025] Figure 4 It is a cross-sectional structure schematic diagram of a connecting mechanism in the utility model;

[0026] Figure 5 It is the structure schematic view of the unlocking sleeve in the utility model.

[0027] In the figure: 1, recovery tank; 2, connecting sleeve; 3, counterflow sleeve; 4, counterflow groove; 5, sealing sleeve; 6, push spring; 7, through-flow sleeve; 8, through-flow groove; 9, clamping sleeve; 10, connecting spring; 11, clamping block; 12, unlocking block; 13, unlocking sleeve; 14, unlocking groove; 15, connecting pipe; 16, clamping groove; 17, central rod; 18, pull spring; 19, bellows; 20, sealing ring; 21, limiting sleeve; 22, limiting rod; 23, limiting hole; 24, compression spring. DETAILED DESCRIPTION

[0028] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] It should be noted that all the technical and scientific terms used in the present application have the same meaning as that generally understood by the ordinary skilled person in the technical field to which the present application belongs, unless otherwise specified.

[0030] In the utility model, the orientation such as "upper, lower" used without contrary description is generally directed to the direction shown in the drawings or directed to the vertical, perpendicular or gravity direction; similarly, for the convenience of understanding and description, "left, right" is generally directed to the left and right shown in the drawings; "inner, outer" refers to the inner and outer relative to the contour of each component itself, but the above orientation words are not used to limit the utility model.

[0031] Please refer to Figures 1-5 A marine oil spill recovery device, comprising a recovery tank 1, a sealing mechanism is arranged on the recovery tank 1, the sealing mechanism comprises a connecting sleeve 2, a counterflow sleeve 3, a counterflow groove 4, a sealing sleeve 5, a push spring 6, a through-flow sleeve 7 and a through-flow groove 8, the connecting sleeve 2 is installed on the recovery tank 1, the counterflow sleeve 3 is installed in the connecting sleeve 2, the counterflow groove 4 is arranged on the outer wall of the counterflow sleeve 3, the sealing sleeve 5 slides in the counterflow sleeve 3, the push spring 6 is installed on the inner wall of the counterflow sleeve 3, the through-flow sleeve 7 is installed on the outer side of the connecting sleeve 2, the through-flow groove 8 is arranged on the outer wall of the through-flow sleeve 7, a connecting mechanism is arranged on the outer wall of the recovery tank 1, the connecting mechanism comprises a clamping sleeve 9, a connecting spring 10, a clamping block 11, an unlocking block 12, an unlocking sleeve 13, an unlocking groove 14, a connecting pipe 15, a clamping groove 16 and a limiting mechanism, the clamping sleeve 9 is installed on the outer wall of the recovery tank 1, the connecting spring 10 is installed on the inner wall of the clamping sleeve 9, the clamping block 11 is installed at one end of the connecting spring 10, the unlocking block 12 is installed at the outer end of the clamping block 11, the unlocking sleeve 13 rotates on the outer wall of the clamping sleeve 9, the unlocking groove 14 is arranged on the unlocking sleeve 13, the connecting pipe 15 is inserted into the clamping sleeve 9, and the clamping groove 16 is arranged on the outer wall of the connecting pipe 15.

[0032] The unlocking block 12 is slidingly installed in the unlocking groove 14, and the unlocking block 12 controls the card block 11 through sliding movement in the unlocking groove 14. When the unlocking sleeve 13 rotates, the inclined surface of the unlocking groove 14 guides the radial displacement of the unlocking block 12.

[0033] A center rod 17 is installed between the counterflow sleeve 3 and the throughflow sleeve 7, the center rod 17 is slidingly connected with the sealing sleeve 5, the center rod 17 serves as a guide device of the sealing sleeve 5, and ensures that the movement track of the sealing sleeve 5 between the counterflow sleeve 3 and the throughflow sleeve 7 is stable.

[0034] The center rod 17 is provided in a polygonal shape, and the center rod 17 is designed in a polygonal cross section, thereby forming an anti-rotation structure with the sealing sleeve 5.

[0035] A tension spring 18 is connected between the sealing sleeve 5 and the throughflow sleeve 7, and provides a return force after the sealing sleeve 5 moves.

[0036] The connecting pipe 15 is provided with a bellows 19, the bellows 19 is connected with an external extraction pump, and the bellows 19 serves as a flexible connecting component between the connecting pipe 15 and the extraction pump, and can absorb pipeline vibration and displacement.

[0037] A sealing ring 20 is arranged between the connecting pipe 15 and the clamping sleeve 9, and the sealing ring 20 is installed between the contact surfaces of the connecting pipe 15 and the clamping sleeve 9, thereby forming a sealing interface.

[0038] In this embodiment, the bellows 19 is connected with the external extraction pump, then the recovery tank 1 is placed at the oil spill site, and the extraction pump is started to first extract the air in the recovery tank 1. After starting, negative pressure is generated by the extraction pump, thereby pulling the sealing sleeve 5 and compressing the push spring 6. The sealing sleeve 5 slides inward along the center rod 17 and passes through the counterflow groove 4, so that the throughflow groove 8 and the counterflow groove 4 form a flow channel, and the oil spill outside is extracted into the recovery tank 1 as the pressure in the recovery tank 1 decreases. When it is necessary to disassemble the connecting pipe 15 and the clamping sleeve 9, the limiting mechanism is released from limiting the unlocking sleeve 13, the rotating sleeve is rotated, the inclined surface provided on the unlocking groove 14 drives the unlocking block 12 to slide along the unlocking groove 14, thereby pulling the unlocking block 12 to move outward, and simultaneously pulling the card block 11 to disengage from the clamping groove 16, thereby releasing the clamping of the connecting pipe 15. Then, the disassembly of the clamping sleeve 9 and the connecting pipe 15 can be completed. When it is necessary to assemble, the connecting pipe 15 and the clamping sleeve 9 are inserted, and when the clamping groove 16 moves to the inside of the card block 11, the unlocking sleeve 13 is reversely rotated, so that the unlocking block 12 reversely moves along the unlocking groove 14, thereby pushing the card block 11 to be clamped in the clamping groove 16 through the unlocking block 12, and finally the limiting mechanism limits the unlocking sleeve 13, thereby completing the clamping.

[0039] Please refer to Figures 4-5As one implementation of the limiting mechanism: the limiting mechanism includes a limiting sleeve 21, a limiting rod 22, a limiting hole 23 and a compression spring 24. The limiting sleeve 21 is slidably installed on the outer wall of the snap-fit ​​sleeve 9. Multiple sets of limiting rods 22 are installed on the bottom surface of the limiting sleeve 21. Multiple sets of limiting holes 23 are distributed on the unlocking sleeve 13. Multiple sets of compression springs 24 are provided and their two ends are respectively connected to the limiting sleeve 21 and the snap-fit ​​sleeve 9.

[0040] More specifically, the limiting sleeve 21 is pushed to slide along the snap-fit ​​sleeve 9 by the compression spring 24. The limiting sleeve 21 pushes multiple sets of limiting rods 22 to insert into the limiting holes 23 provided on the unlocking sleeve 13, thereby restricting the rotation of the unlocking sleeve 13 and preventing it from rotating. When it is necessary to release the limit, the limiting sleeve 21 is pushed upward and the compression spring 24 is squeezed. The limiting sleeve 21 drives the multiple sets of limiting rods 22 to disengage from the limiting holes 23, thereby releasing the limit on the unlocking sleeve 13.

[0041] In summary, during the use or operation of the overall equipment: connect the bellows 19 to the external extraction pump, then place the recovery tank 1 at the oil spill location. Upon startup, the extraction pump first extracts the air from the recovery tank 1. After startup, the extraction pump generates negative pressure, which pulls the sealing sleeve 5 and compresses the push spring 6. The sealing sleeve 5 slides inward along the central rod 17 through the counterflow groove 4, creating a flow channel between the flow groove 8 and the counterflow groove 4. As the pressure inside the recovery tank 1 decreases, the spilled oil is extracted into the recovery tank 1. When it is necessary to separate the connecting pipe 15 from the snap-fit ​​sleeve 9, release the limiting mechanism from the unlocking sleeve 13, and rotate the rotating sleeve... The inclined surface on the unlocking groove 14 drives the unlocking block 12 to slide along the unlocking groove 14, thereby pulling the unlocking block 12 outward and simultaneously pulling the locking block 11 away from the locking groove 16, releasing the locking of the connecting pipe 15. Then the locking sleeve 9 and the connecting pipe 15 can be separated. When installation is required, the connecting pipe 15 and the locking sleeve 9 are inserted. When the locking groove 16 moves to the inside of the locking block 11, the unlocking sleeve 13 is rotated in the opposite direction, causing the unlocking block 12 to move in the opposite direction along the unlocking groove 14. Thus, the unlocking block 12 pushes the locking block 11 to engage in the locking groove 16. Finally, the locking sleeve 13 is restricted by the limiting mechanism to complete the locking.

[0042] The limiting sleeve 21 is pushed to slide along the snap sleeve 9 by the compression spring 24. The limiting sleeve 21 pushes multiple sets of limiting rods 22 to be inserted into the limiting holes 23 provided on the unlocking sleeve 13, thereby restricting the rotation of the unlocking sleeve 13 and preventing it from rotating. When it is necessary to release the limit, the limiting sleeve 21 is pushed upward and the compression spring 24 is squeezed. The limiting sleeve 21 drives the multiple sets of limiting rods 22 to disengage from the limiting holes 23, thereby releasing the limit on the unlocking sleeve 13.

[0043] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection or other known connection mode, which will not be described here. In the above, whenever there is a fixed connection, welding is preferred. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A marine oil spill recovery device comprising a recovery tank (1), characterised in that: The recycling tank (1) is provided with a sealing mechanism, the sealing mechanism comprises a connecting sleeve (2), a counterflow sleeve (3), a counterflow groove (4), a sealing sleeve (5), a push spring (6), a flow sleeve (7) and a flow groove (8), the connecting sleeve (2) is installed on the recycling tank (1), the counterflow sleeve (3) is installed in the connecting sleeve (2), the counterflow groove (4) is arranged on the outer wall of the counterflow sleeve (3), the sealing sleeve (5) slides in the counterflow sleeve (3), the push spring (6) is installed on the inner wall of the counterflow sleeve (3), the flow sleeve (7) is installed on the outer side of the connecting sleeve (2), the flow groove (8) is arranged on the outer wall of the flow sleeve (7), the outer wall of the recycling tank (1) is provided with a connecting mechanism, the connecting mechanism comprises a clamping sleeve (9), a connecting spring (10), a clamping block (11), an unlocking block (12), an unlocking sleeve (13), an unlocking groove (14), a connecting pipe (15), a clamping groove (16) and a limiting mechanism, the clamping sleeve (9) is installed on the outer wall of the recycling tank (1), the connecting spring (10) is installed on the inner wall of the clamping sleeve (9), the clamping block (11) is installed on one end of the connecting spring (10), the unlocking block (12) is installed on the outer end of the clamping block (11), the unlocking sleeve (13) rotates on the outer wall of the clamping sleeve (9), the unlocking groove (14) is arranged on the unlocking sleeve (13), the connecting pipe (15) is inserted into the clamping sleeve (9), and the clamping groove (16) is arranged on the outer wall of the connecting pipe (15).

2. A marine oil spill recovery device according to claim 1, characterised in that: The unlocking block (12) is slidingly installed in the unlocking groove (14).

3. A marine oil spill recovery device according to claim 2, characterised in that: A center rod (17) is installed between the counterflow sleeve (3) and the flow sleeve (7), and the center rod (17) is slidingly connected with the sealing sleeve (5).

4. A marine oil spill recovery device according to claim 3, characterised in that: The center rod (17) is in a polygonal shape.

5. A marine oil spill recovery device according to claim 4, characterised in that: A pull spring (18) is connected between the sealing sleeve (5) and the flow sleeve (7).

6. A marine oil spill recovery device according to claim 5, characterised in that: A bellows (19) is arranged on the connecting pipe (15), and the bellows (19) is connected with an external suction pump.

7. A marine oil spill recovery device according to claim 6, characterised in that: A sealing ring (20) is arranged between the connecting pipe (15) and the clamping sleeve (9).

8. A marine oil spill recovery device according to claim 7, characterised in that: The limiting mechanism comprises a limiting sleeve (21), a limiting rod (22), a limiting hole (23) and a compression spring (24), the limiting sleeve (21) is slidingly installed on the outer wall of the clamping sleeve (9), the limiting rod (22) is provided with a plurality of groups of installations on the bottom surface of the limiting sleeve (21), the limiting hole (23) is provided with a plurality of groups of distributions on the unlocking sleeve (13), and the compression spring (24) is provided with a plurality of groups and is connected with the limiting sleeve (21) and the clamping sleeve (9) at both ends.

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