A sub-mat type oil spill recovery system with a transfer device

Abstract

The application relates to the technical field of water surface oil spill collection, and discloses a mother-son type oil spill recovery system with a transfer device, which comprises a mother ship, a son ship and a pumping assembly. A crane is arranged on the deck of the mother ship, the end of the crane is connected with a cage, the crane is used for transferring the cage between the water surface and the deck of the mother ship, one side of the cage is open, and the son ship can enter and exit the cage through the open end of the cage. An oil collecting cabin for storing oil spills is arranged on the son ship, an oil collector for collecting water surface oil spills is arranged at the bow of the son ship, a storage bag is detachably connected to the stern of the son ship, and the oil spills collected by the son ship can be transferred between the oil collecting cabin and the storage bag. The pumping assembly comprises an oil pump arranged on the mother ship, the output end of the oil pump is connected with a storage space on the mother ship, and the input end of the oil pump is provided with a suction pipeline.

Description

Technical Field

[0001] This invention relates to the field of surface waste collection technology, specifically to the field of surface oil spill collection technology, and particularly to a mother-daughter type oil spill recovery system with a transfer device. Background Technology

[0002] Oil spills, simply put, are the phenomenon of oil or its products leaking into rivers, lakes, or seas due to various reasons, forming an oil slick. It's not just a layer of oil on the surface; it's an environmental disaster that can cause serious ecological, economic, and social problems. Therefore, timely oil spill cleanup is essential.

[0003] Traditional oil spill recovery methods are mainly divided into two categories: one is to use a single large oil recovery vessel, which has a deep draft and poor maneuverability, making it difficult to operate flexibly in complex waters such as shallow waters and port areas, and the efficiency of oil recovery at a single point is limited; the other is to use small oil recovery devices to be deployed manually, which has low processing capacity and is difficult to cope with large-scale oil spill accidents.

[0004] Internationally, there are already relevant oil spill recovery systems, such as the VOS oil spill recovery system from KOSEQ in the Netherlands and the single-arm side-mounted boat-borne oil spill recovery system from Lloyd in Finland. Both systems use a sweeping arm and a skimmer to recover spilled oil. However, most of them operate as stand-alone units, and after the oil is fully recovered, the operation must be interrupted to return to the mother ship or shore for unloading. This results in a discontinuous recovery process and severely restricts the overall oil recovery efficiency.

[0005] Based on the above, the present invention proposes a mother-daughter type oil spill recovery system with a transfer device. Summary of the Invention

[0006] To address the problems mentioned in the background above, the present invention provides a mother-daughter oil spill recovery system with a transfer device.

[0007] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows.

[0008] A mother ship and daughter ship oil spill recovery system with a transfer device includes a mother ship, a daughter ship, and a pumping assembly; The mother ship is equipped with a crane on its deck, with a cage attached to the end of the crane. The crane is used to move the cage between the water surface and the mother ship's deck. One side of the cage is open and the sub-boat can enter and exit the cage through the opening. The sub-boat is equipped with an oil collection tank for storing spilled oil, and an oil skimmer for collecting spilled oil on the water surface is installed at the bow of the sub-boat. The stern of the sub-boat is detachably connected to an oil storage bladder, and the oil spill collected by the sub-boat can be transferred between the oil collection tank and the oil storage bladder. The pumping assembly includes an oil pump installed on the mother ship, with the output end of the oil pump connected to the oil storage space on the mother ship and the input end of the oil pump equipped with a suction pipe.

[0009] Furthermore, a connecting pipe is provided at the inlet of the oil storage bladder, and the end of the connecting pipe is connected to a connector installed on the sub-boat. A two-way pump is installed inside the sub-boat, and the two ends of the two-way pump are connected to the connector and the oil collection tank, respectively.

[0010] Furthermore, guide plates are hinged to both sides of the open opening of the cage, and the distance between the two guide plates decreases along the direction of movement of the sub-boat into the cage.

[0011] Furthermore, guide wheel assemblies are floatingly installed on the two inner walls of the cage along the width direction, the bottom of the cage, and the opposite sides of the two guide plates, and multiple guide wheel assemblies are arranged in an array along the length direction of the cage.

[0012] Furthermore, the guide wheel assembly includes a guide rod, which is vertically installed on the inner wall of the cage, the bottom of the cage, or the guide plate, and the guide rod can move along its own extension direction. A guide wheel seat is provided at one end of the guide rod facing the center line of the cage, and a guide wheel is installed on the guide wheel seat. A spring is sleeved on the outside of the guide rod and located between the guide wheel seat and the inner wall of the cage, the bottom of the cage, or the guide plate. The guide wheels of the guide wheel assemblies installed on the inner wall of the cage and on the guide plate are arranged vertically, while the guide wheels of the guide wheel assemblies installed at the bottom of the cage are parallel to the width direction of the cage.

[0013] Furthermore, a support is hinged to the side of the cage, and a telescopic rod is installed on the support. The end of the telescopic rod is hinged to the guide plate. There are two supports corresponding to the telescopic rod.

[0014] Furthermore, a buffer assembly is installed on the inner wall of the cage facing its own opening. During the process of the sub-boat entering the cage, the buffer assembly is used to buffer the inertial potential energy of the sub-boat's bow.

[0015] Furthermore, the buffer assembly includes a guide rod three vertically mounted on the cage, and the guide rod three is movable along its own extension direction. A buffer head is provided at one end of the guide rod three facing the center line of the cage, and a spring three is sleeved on the outside of the guide rod three between the buffer head and the cage.

[0016] Furthermore, a limiting component is provided at the bottom of the open opening of the cage. The limiting component includes a telescopic rod II and a limiting plate hinged to the cage. The two ends of the telescopic rod II are respectively hinged to the bottom of the cage and the limiting plate.

[0017] Furthermore, the upper surface of the limiting plate is provided with abutting elements, and multiple abutting elements are arranged in an array along the extending direction of the limiting plate; The abutment includes a guide rod 2 vertically mounted on the limiting plate and the guide rod 2 being able to move along its own extension direction. The upper end of the guide rod 2 is provided with a bracket and the outside of the guide rod 2 is fitted with a spring 2 located between the bracket and the limiting plate. An abutment wheel is installed on the bracket and the abutment wheel is parallel to the width direction of the cage.

[0018] Compared with the prior art, the beneficial effects of this invention are as follows: In this case, a crane installed on the mother ship lowers a cage to the sea surface, and a sub-ship located in the cage sails out to collect oil spills on the water surface. The collected oil spills are temporarily stored on the sub-ships. Furthermore, the oil storage bladders can greatly increase the amount of oil spills that the sub-ships can store in a single operation and reduce the frequency of the sub-ships returning to transfer oil spills, thereby further improving the efficiency of oil spill collection. Once the oil spill storage on the sub-ship reaches full capacity, it returns to the gantry crane. The oil spill on the sub-ship is then pumped to the mother ship via the pumping assembly. The gantry crane is located on the water surface and serves as a temporary berth. The sub-ship does not need to return to the shore or the deck of the mother ship, which can effectively improve the efficiency of oil spill transfer and thus indirectly improve the efficiency of oil spill collection. Furthermore, when the sub-boat enters the cage, the buffer components can absorb the inertia of the sub-boat, achieving the purpose of buffer protection. The unfolded guide plate and the downward-sloping limit plate enable the small boat to sail smoothly and steadily into the cage. The retractable guide plate and the upward-sloping limit plate can limit the position of the sub-vessel, ensuring a smooth and stable oil spill transfer process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram showing the smaller boat inside the gondola. Figure 3 This is a schematic diagram of the smaller boat moving into the gondola. Figure 4 An exploded view of the sub-boat, bidirectional pump, and oil reservoir; Figure 5 This is a schematic diagram of the hoisting cage. Figure 6 This is a schematic diagram of the guide plate and guide wheel assembly; Figure 7 This is a schematic diagram of the limit component.

[0020] The labels in the attached diagram are: 1. Mother ship; 2. Daughter ship; 201. Oil skimmer; 202. Oil collection tank; 203. Connector; 3. Oil reservoir; 301. Connecting pipe; 4. Crane; 5. Cage; 6. Pumping assembly; 7. Guide plate; 8. Telescopic rod one; 9. Guide wheel assembly; 901. Guide rod one; 902. Guide wheel seat; 903. Spring one; 904. Guide wheel; 10. Limiting assembly; 1001. Limiting plate; 1002. Telescopic rod two; 1003. Abutment component; 1004. Guide rod two; 1005. Bracket; 1006. Spring two; 1007. Abutment wheel; 11. Buffer assembly; 1101. Guide rod three; 1102. Buffer head; 1103. Spring three; 12. Bidirectional pump. Detailed Implementation

[0021] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0022] Reference Figures 1-3 A mother ship and daughter ship oil spill recovery system with a transfer device includes a mother ship 1, a daughter ship 2, and a pumping assembly 6, wherein: A crane 4 is installed on the deck of the mother ship 1. A cage 5 is connected to the end of the crane 4. The crane 4 is used to pull the cage 5 between the water surface and the deck of the mother ship 1. The crane 4 can adopt the existing crane boom technology, etc., which will not be elaborated. One side of the cage 5 is open and the sub-boat 2 can enter and exit the cage 5 through the opening. The sub-boat 2 is equipped with an oil collection tank 202 for storing spilled oil. The bow of the sub-boat 2 is equipped with an oil skimmer 201 for collecting oil spilled on the water surface. The oil skimmer 201 can adopt existing snail oil skimmer technology, brush oil skimmer technology, or rotary oil skimmer technology, etc., which will not be elaborated here. Furthermore, an oil storage bladder 3 is detachably connected to the stern of the sub-boat 2. A connecting pipe 301 is installed at the inlet of the oil storage bladder 3, and the end of the connecting pipe 301 is connected to a connector 203 installed on the sub-boat 2. A bidirectional pump 12 is installed inside the sub-boat 2, with both ends connected to the connector 203 and the oil collection tank 202, respectively. Its technical advantage lies in the fact that, when collecting surface oil spills through the sub-boat 2, the presence of the oil storage bladder 3 can greatly increase the oil spill storage capacity of the sub-boat 2. Specifically, through… The bidirectional pump 12 enables the transfer of spilled oil between the oil collection tank 202 and the oil storage bladder 3. When the sub-vessel 2 is in operation, the spilled oil is stored together by the oil collection tank 202 and the oil storage bladder 3, resulting in a larger oil storage capacity. After the storage is full, the sub-vessel 2 returns to the hoist cage 5 and uses the pumping component 6 to suck up the spilled oil in the oil collection tank 202 and transfer it to the corresponding oil storage space of the mother ship 1. At this time, the bidirectional pump 12 pulls the spilled oil in the oil storage bladder 3 to the oil collection tank 202 and finally transfers it to the mother ship 1. The pumping assembly 6 includes an oil pump installed on the mother ship 1. The output end of the oil pump is connected to the oil storage space on the mother ship 1, and the input end of the oil pump is equipped with a suction pipe. After the daughter ship 2 is fixed in the cage 5, the daughter ship 2 is relatively large, with a length of several meters. The operators can stand on the daughter ship 2, open the hatch of the oil collection tank 202, and extend the end of the suction pipe into the oil collection tank 202. Subsequently, the oil spill can be transferred from the daughter ship 2 to the mother ship 1 directly through the oil pump.

[0023] In a preferred embodiment, when the sub-boat 2 moves into the cage 5, in order to better guide the sub-boat 2 into the cage, refer to... Figure 5 and Figure 6 Guide components are provided on both sides of the open opening of the cage 5. The guide components include a guide plate 7 hinged to the open opening of the cage 5 and a support hinged to the side of the cage 5. The hinge axis formed by the hinge between the support and the cage 5 and the hinge axis formed by the hinge between the guide plate 7 and the cage 5 are both arranged vertically. A telescopic rod 8 is provided on the support, and the end of the telescopic rod 8 is connected to the guide plate 7. Its technical advantage is that the telescopic rod 8 can drive the guide plate 7 to deflect around the hinge axis, so that the guide plate 7 is arranged at an angle and the distance between the two guide plates 7 decreases along the direction of the movement of the sub-boat 2 into the cage 5. The purpose of guiding the sub-boat 2 into the cage 5 is achieved by the two guide plates 7.

[0024] In a preferred embodiment, to avoid damage caused by the side of the sub-boat 2 colliding with the cage 5 during the process of the sub-boat 2 entering the cage 5, refer to... Figure 5 Guide wheel assemblies 9 are provided on the two inner walls of the cage 5 along the width direction, the bottom of the cage 5, and the opposite sides of the two guide plates 7, and multiple guide wheel assemblies 9 are arranged in an array along the length direction of the cage 5.

[0025] Specifically, refer to Figure 6 The guide wheel assembly 9 includes a guide rod 901, which is vertically installed on the inner wall of the cage 5, the bottom of the cage 5, or the guide plate 7. The guide rod 901 can move along its own extension direction. A guide wheel seat 902 is provided at one end of the guide rod 901 facing the center line of the cage 5. A guide wheel 904 is installed on the guide wheel seat 902. A spring 903 is sleeved on the outside of the guide rod 901 and located between the guide wheel seat 902 and the inner wall of the cage 5, the bottom of the cage 5, or the guide plate 7.

[0026] The guide wheels 904 of the guide wheel assembly 9, which is installed on the inner wall of the cage 5 and on the guide plate 7, are arranged vertically. The guide wheels 904 of the guide wheel assembly 9, which is installed at the bottom of the cage 5, are parallel to the width direction of the cage 5. Furthermore, when the sub-boat 2 is located inside the cage 5, the width direction of the cage 5 is parallel to the width direction of the sub-boat 2.

[0027] Its technical advantage lies in the fact that by setting up several guide wheels 904, the friction between the sub-boat 2 and the cage 5 or guide plate 7 can be converted into rolling friction, which effectively reduces the damage of friction to the surface coating of the sub-boat 2. The setting of spring 903 can reduce the collision force between the sub-boat 2 and the cage 5, and play a role in buffer protection.

[0028] In a preferred embodiment, after the sub-boat 2 enters the cage 5, the propeller stops running. However, due to inertia, the bow of the sub-boat 2 still has the problem of easily colliding with the cage 5. (Refer to...) Figure 3 A buffer assembly 11 is provided on the inner wall of the cage 5, which faces its own open opening.

[0029] Specifically, refer to Figure 5 The buffer assembly 11 includes a guide rod 1101 vertically mounted on the cage 5, and the guide rod 1101 is movable along its extension direction. A buffer head 1102 is provided at one end of the guide rod 1101 facing the center line of the cage 5. A spring 1103 is sleeved on the outside of the guide rod 1101 and located between the buffer head 1102 and the cage 5. Its technical advantage is that the bow of the sub-boat 2 is buffered and protected by the setting of the spring 1103.

[0030] In a preferred embodiment, to limit and fix the sub-boat 2 after it enters the cage 5, refer to... Figure 5 A limit component 10 is provided at the bottom of the open opening of the cage 5.

[0031] Specifically, refer to Figure 7 The limiting component 10 includes a second telescopic rod 1002 and a limiting plate 1001 hinged to the cage 5. The two ends of the second telescopic rod 1002 are respectively hinged to the bottom of the cage 5 and the limiting plate 1001. The hinge shaft formed at the hinge point between the second telescopic rod 1002 and the cage 5, the hinge shaft formed at the hinge point between the second telescopic rod 1002 and the limiting plate 1001, and the hinge shaft formed at the hinge point between the cage 5 and the limiting plate 1001 are all parallel to the width direction of the cage 5.

[0032] In this case, both telescopic pole 18 and telescopic pole 21002 adopt existing electric telescopic pole or existing hydraulic telescopic pole technology, which will not be elaborated further.

[0033] After the sub-boat 2 enters the cage 5, the telescopic rod 1002 drives the limiting plate 1001 to shift upward, lifting the stern of the sub-boat 2, thereby achieving the purpose of restricting the sub-boat 2.

[0034] In a preferred embodiment, when the limiting plate 1001 achieves the purpose of restricting the sub-boat 2 by lifting its stern, due to the shape of the stern of the sub-boat 2, it is difficult for the limiting plate 1001 to make contact with the stern surface of the sub-boat 2. The contact between the two is either point contact or surface contact, but the contact area is very small. Therefore, there is a problem that the pressure at the contact position is relatively large, which can easily lead to damage to the stern of the sub-boat 2. (Refer to...) Figure 7 The upper surface of the limiting plate 1001 is provided with an abutment 1003, and multiple abutments 1003 are arranged in an array along the extension direction of the limiting plate 1001.

[0035] Specifically, the abutment 1003 includes a second guide rod 1004 vertically mounted on the limiting plate 1001 and the second guide rod 1004 is movable along its own extension direction. The upper end of the second guide rod 1004 is provided with a bracket 1005 and a second spring 1006 is sleeved on the outside of the second guide rod 1004, located between the bracket 1005 and the limiting plate 1001. An abutment wheel 1007 is mounted on the bracket 1005 and the abutment wheel 1007 is parallel to the width direction of the cage 5.

[0036] Its technical advantage lies in the fact that, during the process of the limiting plate 1001 deflecting upwards to limit the sub-boat 2, the cooperation between the spring 1006 and the abutment wheel 1007 can adapt to the shape of the stern of the sub-boat 2 so that the abutment wheel 1007 contacts the stern. Since multiple abutment members 1003 are provided, the limiting plate 1001 can greatly increase the number of contact points by contacting the stern through the abutment wheel 1007, thereby avoiding pressure concentration at one point, which could easily lead to damage to the stern.

[0037] Working principle of the invention: Step 1: Oil spill is collected on the water surface via the sub-boat 2, and the collected oil is stored in the oil collection tank 202 and the oil storage bladder 3; Step 2: When the oil collection tank 202 and the oil storage bladder 3 are full, the sub-ship 2 begins to return and enters the gondola 5; First, it should be noted that the cage 5 is positioned on the water surface and the bottom of the cage 5 is submerged in the water beforehand by the traction of the crane 4. Secondly, the process of the sub-boat 2 entering the cage 5 is as follows: the guide plate 7 is unfolded by the telescopic rod 1 8, and the limiting plate 1001 is tilted downward by the telescopic rod 2 1002. Under the guidance of the guide plate 7 and the limiting plate 1001, the sub-boat 2 can smoothly and steadily enter the cage 5. Then, the guide plate 7 is retracted by the telescopic rod 8, and the limiting plate 1001 is tilted upward by the telescopic rod 1002. The position of the sub-boat 2 is limited by the cooperation of the guide plate 7 and the limiting plate 1001. Step 3: Open the hatch cover of the oil collection tank 202 and insert the end of the suction pipe into the oil collection tank 202. With the cooperation of the oil pump and the two-way pump 12, the spilled oil on the daughter ship 2 is sucked and stored in the oil storage space of the mother ship 1. Step 4: The guide plate 7 is deployed, the limiting plate 1001 is tilted downwards, the sub-boat 2 leaves the cage 5, and continues to collect oil spills from the water surface; After the oil spill operation is completed, the daughter boat 2 will be towed back to the mother boat 1 using the hoist 5.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A mother-daughter oil spill recovery system with a transfer device, comprising a mother ship (1) and a daughter ship (2), characterized in that, It also includes a pumping assembly (6); A crane (4) is installed on the deck of the mother ship (1), and a cage (5) is connected to the end of the crane (4). The crane (4) is used to pull the cage (5) between the water surface and the deck of the mother ship (1). One side of the cage (5) is open and the sub-boat (2) can enter and exit the cage (5) through the opening of the cage (5). The sub-boat (2) is equipped with an oil collection tank (202) for storing spilled oil, and an oil skimmer (201) for collecting spilled oil on the bow of the sub-boat (2). The stern of the sub-boat (2) is detachably connected to an oil storage bladder (3), and the spilled oil collected by the sub-boat (2) can be transferred between the oil collection tank (202) and the oil storage bladder (3); The pumping assembly (6) includes an oil pump installed on the mother ship (1), the output end of which is connected to the oil storage space on the mother ship (1), and the input end of which is provided with a suction pipe.

2. A mother-daughter type oil spill recovery system with a transfer device according to claim 1, characterized in that, A connecting pipe (301) is provided at the inlet of the oil storage bladder (3). The end of the connecting pipe (301) is connected to a connector (203) provided on the sub-boat (2). A two-way pump (12) is provided inside the sub-boat (2). The two ends of the two-way pump (12) are connected to the connector (203) and the oil collection tank (202) respectively.

3. A mother-daughter type oil spill recovery system with a transfer device according to claim 1, characterized in that, Guide plates (7) are hinged to both sides of the open opening of the cage (5), and the distance between the two guide plates (7) decreases along the direction of movement of the sub-boat (2) into the cage (5).

4. A mother-daughter type oil spill recovery system with a transfer device according to claim 3, characterized in that, Guide wheel assemblies (9) are floatingly installed on the two inner walls of the cage (5) along the width direction, the bottom of the cage (5) and the opposite side of the two guide plates (7), and multiple guide wheel assemblies (9) are arranged in an array along the length direction of the cage (5).

5. A mother-daughter type oil spill recovery system with a transfer device according to claim 4, characterized in that, The guide wheel assembly (9) includes a guide rod (901), which is vertically installed on the inner wall of the cage (5), the bottom of the cage (5), or the guide plate (7). The guide rod (901) can move along its own extension direction. A guide wheel seat (902) is provided at one end of the guide rod (901) facing the center line of the cage (5). A guide wheel (904) is installed on the guide wheel seat (902). A spring (903) is sleeved on the outside of the guide rod (901) between the guide wheel seat (902) and the inner wall of the cage (5), the bottom of the cage (5), or the guide plate (7). The guide wheels (904) of the guide wheel assembly (9) set on the inner wall of the cage (5) and the guide wheel assembly (9) set on the guide plate (7) are arranged vertically, and the guide wheels (904) of the guide wheel assembly (9) set at the bottom of the cage (5) are parallel to the width direction of the cage (5).

6. A mother-daughter type oil spill recovery system with a transfer device according to claim 3, characterized in that, The side of the cage (5) is hinged with a support, and a telescopic rod (8) is installed on the support. The end of the telescopic rod (8) is hinged to the guide plate (7). There are two supports and two telescopic rods (8) respectively.

7. A mother-daughter type oil spill recovery system with a transfer device according to claim 1, characterized in that, A buffer assembly (11) is provided on the inner wall of the cage (5) facing its own opening. During the process of the sub-boat (2) entering the cage (5), the buffer assembly (11) is used to buffer the inertial potential energy of the bow of the sub-boat (2).

8. A mother-daughter type oil spill recovery system with a transfer device according to claim 7, characterized in that, The buffer assembly (11) includes a guide rod three (1101) vertically mounted on the cage (5) and the guide rod three (1101) is capable of moving along its own extension direction. A buffer head (1102) is provided at one end of the guide rod three (1101) facing the center line of the cage (5). A spring three (1103) is sleeved on the outside of the guide rod three (1101) between the buffer head (1102) and the cage (5).

9. A mother-daughter type oil spill recovery system with a transfer device according to claim 1 or 6, characterized in that, A limit assembly (10) is provided at the bottom of the open opening of the cage (5). The limit assembly (10) includes a telescopic rod (1002) and a limit plate (1001) hinged on the cage (5). The two ends of the telescopic rod (1002) are respectively hinged to the bottom of the cage (5) and the limit plate (1001).

10. A mother-daughter type oil spill recovery system with a transfer device according to claim 9, characterized in that, The upper surface of the limiting plate (1001) is provided with abutment (1003), and multiple abutment (1003) are arranged in an array along the extending direction of the limiting plate (1001); The abutment (1003) includes a guide rod (1004) vertically mounted on the limiting plate (1001) and the guide rod (1004) is capable of moving along its own extension direction. A bracket (1005) is provided at the upper end of the guide rod (1004) and a spring (1006) is sleeved on the outside of the guide rod (1004) between the bracket (1005) and the limiting plate (1001). An abutment wheel (1007) is installed on the bracket (1005) and the abutment wheel (1007) is parallel to the width direction of the cage (5).

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