Oil skimming device

By setting up an oil suction seat and suction components in the oil skimming device, and utilizing the buoyancy of water and the principle of oil-water separation, the oil skimming tank can be efficiently treated in a limited space. This solves the problem of inconvenient operation of existing devices in narrow areas and improves the continuity and flexibility of oil treatment.

CN224160431UActive Publication Date: 2026-04-24PETROCHINA CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PETROCHINA CO LTD
Filing Date
2025-02-07
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing oil skimming devices are too complex and bulky, making it difficult to efficiently remove oil spills in confined spaces such as rainwater collection ponds and dikes.

Method used

An oil skimming device was designed, including an oil skimming tank, an oil suction seat, and a suction assembly. By utilizing the design that connects the oil suction seat to the oil storage chamber, the oil is transported to the collection tank through the oil suction pipe and the oil outlet pipe. Combining the buoyancy of water and the principle of oil-water separation, the automatic aggregation and efficient collection of oil sludge are achieved.

Benefits of technology

It achieves efficient oil pollution treatment within a limited space, ensuring the continuity and efficiency of oil pollution control. The device is also small in size, making it easy to move and deploy flexibly in narrow areas, thus improving operational convenience and adaptability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an oil skimming device, and relates to the technical field of oil stain treatment, the oil skimming device comprises an oil skimming barrel, an oil suction seat and a suction assembly, the oil skimming barrel is provided with an oil storage cavity, and the outer side wall of the oil skimming barrel is provided with a first oil suction port communicated with the oil storage cavity and the outside; the oil suction seat is arranged on the bottom wall of the oil storage cavity and provided with an oil suction cavity, and a second oil suction port and a third oil suction port which are communicated with the oil storage cavity and the oil suction cavity are formed in the outer side wall of the oil suction seat; the suction assembly comprises an oil suction pipe, a conveying pump, an oil outlet pipe and a collecting tank, one end of the oil suction pipe extends into the oil storage cavity to communicate with the third oil suction port, the other end of the oil suction pipe communicates with the input end of the conveying pump, the output end of the conveying pump communicates with the collecting tank, and the conveying pump is used for conveying oil in the oil suction cavity to the collecting tank through the oil suction pipe and the oil outlet pipe. The utility model aims to simplify the structure of the device and improve the flexibility and oil skimming efficiency of the device.
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Description

Technical Field

[0001] This utility model relates to the field of oil pollution treatment technology, and in particular to an oil skimming device. Background Technology

[0002] During rainy seasons, accumulated oil and grime on the ground are washed away by strong rainwater and seep into stormwater drainage systems, eventually converging in rainwater collection ponds. Because oil is generally less dense than water, it floats on the surface due to gravity. This process allows the initially localized oil pollution to spread, creating a potential source of secondary pollution and posing a further threat to the environment.

[0003] Currently, there are three main methods for treating oil spills on water surfaces: chemical methods, biological methods, and physical methods. Chemical methods typically use dispersants and other chemical reagents, which can easily cause secondary pollution to water resources. While in-situ combustion is simple, it also produces large amounts of chemical residues or smoke, causing secondary pollution. Biological methods are environmentally friendly and efficient, but the low survival rate of exogenous bacteria that degrade oil limits their large-scale application. Physical methods use oil booms to limit the spread of oil and use skimming devices or absorbent materials to separate and store the oil from the spill area in a transportable manner.

[0004] However, existing oil skimming devices have too many and too heavy mechanical structures, making them only suitable for treating large areas of oily wastewater and difficult to carry out efficient emergency oil spill retrieval operations in limited spaces such as drainage ditches, embankments, and rainwater collection ponds. Utility Model Content

[0005] The main purpose of this invention is to provide an oil skimming device that simplifies the device structure and improves its flexibility and oil skimming efficiency.

[0006] To achieve the above objectives, this utility model provides an oil skimming device, comprising:

[0007] An oil skimming barrel is provided with an oil storage chamber, and a first oil suction port is provided on the outer side wall of the oil skimming barrel to connect the oil storage chamber with the outside.

[0008] An oil suction seat is disposed on the bottom wall of the oil storage cavity. The oil suction seat has an oil suction cavity, and a second oil suction port and a third oil suction port communicating between the oil storage cavity and the oil suction cavity are opened on the outer side wall of the oil suction seat; and

[0009] The suction assembly includes an oil suction pipe, a delivery pump, an oil outlet pipe, and a collection tank. One end of the oil suction pipe extends into the oil storage chamber and communicates with the third oil suction port. The other end of the oil suction pipe is communicated with the input end of the delivery pump. The output end of the delivery pump is communicated with the collection tank. The delivery pump is used to deliver the oil in the oil suction chamber to the collection tank through the oil suction pipe and the oil outlet pipe.

[0010] In one embodiment, the oil suction seat includes a dam body and a cover body. The dam body is disposed on the bottom wall of the oil storage cavity, and the cover body is disposed on the side of the dam body away from the bottom wall of the oil storage cavity. The cover body, the dam body, and the bottom wall of the oil storage cavity together form the oil suction cavity. The dam body has a second oil suction port, and the cover body has a third oil suction port.

[0011] In one embodiment, the skimming device further includes a quick-connect fitting disposed at the third oil suction port, the quick-connect fitting being used to connect the third oil suction port and the oil suction pipe.

[0012] In one embodiment, the quick-connect fitting is a quick-connect coupling or a flange.

[0013] In one embodiment, the skimming device further includes a control rod, which is fixedly connected to the top of the skimming barrel.

[0014] In one embodiment, the control lever is tilted relative to the skimming bucket.

[0015] In one embodiment, the skimming device further includes a connecting lock structure, which includes a lug and a movable rod. The lug is located at the top of the skimming barrel and has a connecting hole. One end of the movable rod has a connecting ring, which is fitted into the connecting hole to movably connect the movable rod with the lug.

[0016] In one embodiment, the distance from the bottom end of the first oil suction port to the bottom wall of the oil storage cavity is A, and the distance from the end face of the oil suction seat away from the bottom wall of the oil storage cavity to the bottom wall of the oil storage cavity is B, where A > B.

[0017] In one embodiment, the outer side wall of the skimming barrel is provided with a plurality of first oil suction ports, and the plurality of first oil suction ports are evenly distributed on the outer side wall of the skimming barrel along the circumference and / or the axial direction of the skimming barrel.

[0018] In one embodiment, the oil suction pipe is a rubber hose.

[0019] The oil skimming device provided by this utility model achieves efficient oil pollution treatment within a limited space by setting an oil suction seat inside the oil skimming tank and using a suction component to transport the oil to a collection tank. In practical use, the oil skimming tank is placed in water containing oily sludge. The oil sludge enters the oil storage chamber through the first oil suction port. Since the oil suction chamber of the suction seat is connected to the oil storage chamber of the oil skimming tank, and the oil suction chamber is connected to the collection tank through an oil suction pipe and an oil outlet pipe, the oil sludge in the oil suction chamber can be transported to the collection tank. During the suction process, the action of the delivery pump ensures that the oil is drawn out stably and continuously. Even in cases of heavy or viscous oil sludge, the powerful suction of the delivery pump can effectively treat it. This design utilizes the buoyancy of water and the principle of oil-water separation, allowing the oil sludge to automatically gather and be effectively collected without re-mixing into the water, thus ensuring the continuity and efficiency of oil pollution treatment. In addition, the compact design of the skimming tank and the oil suction seat makes the device particularly suitable for operation in confined spaces such as rainwater collection ponds and dikes. Compared with traditional skimming devices, this device is smaller in size, making it easier to move and deploy flexibly in narrow areas, greatly improving its adaptability and ease of operation in complex environments. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0021] Figure 1 A schematic diagram of an embodiment of the oil skimming device provided by this utility model;

[0022] Figure 2 A schematic diagram of another embodiment of the oil skimming device provided by this utility model;

[0023] Figure 3 This is a schematic diagram of another embodiment of the oil skimming device provided by this utility model.

[0024] Explanation of icon numbers:

[0025] 100. Skimming device; 1. Skimming tank; 11. Oil storage chamber; 12. First oil suction port; 2. Oil suction seat; 21. Dike body; 22. Cover body; 23. Oil suction chamber; 24. Second oil suction port; 25. Third oil suction port; 3. Suction assembly; 31. Oil suction pipe; 32. Transfer pump; 33. Oil outlet pipe; 34. Collection tank; 4. Quick connector; 4a. Flange; 4b. Quick connector; 5. Control lever; 6. Connecting lock structure; 61. Lug; 62. Movable lever.

[0026] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0029] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0030] This utility model proposes an oil skimming device 100.

[0031] Please see Figures 1 to 3In one embodiment of this utility model, the oil skimming device 100 includes an oil skimming tank 1, an oil suction seat 2, and a suction assembly 3. The oil skimming tank 1 is provided with an oil storage chamber 11, and a first oil suction port 12 is opened on the outer side wall of the oil skimming tank 1 to connect the oil storage chamber 11 with the outside. The oil suction seat 2 is provided on the bottom wall of the oil storage chamber 11, and the oil suction seat 2 is provided with an oil suction chamber 23. A second oil suction port 24 and a third oil suction port 25 are opened on the outer side wall of the oil suction seat 2 to connect the oil storage chamber 11 and the oil suction chamber 23. The suction assembly 3 includes an oil suction pipe 31, a delivery pump 32, an oil outlet pipe 33, and a collection tank 34. One end of the oil suction pipe 31 extends into the oil storage chamber 11 and is connected to the third oil suction port 25. The other end of the oil suction pipe 31 is connected to the input end of the delivery pump 32. The output end of the delivery pump 32 is connected to the collection tank 34. The delivery pump 32 is used to transport the oil in the oil suction chamber 23 to the collection tank 34 through the oil suction pipe 31 and the oil outlet pipe 33.

[0032] The oil skimming device 100 provided by this utility model achieves efficient oil pollution treatment in a limited space by setting an oil suction seat 2 inside the oil skimming bucket 1 and transporting the oil to the collection tank 34 through the suction component 3. In specific use, the oil skimming bucket 1 is placed in water containing sludge and oil. The oil can enter the oil storage chamber 11 through the first oil suction port 12. Since the oil suction chamber 23 of the oil suction seat 2 is connected to the oil storage chamber 11 of the oil skimming bucket 1, and the oil suction chamber 23 is connected to the collection tank 34 through the oil suction pipe 31 and the oil outlet pipe 33, the sludge and oil in the oil suction chamber 23 can be transported to the collection tank 34. During the suction process, the action of the delivery pump 32 ensures that the oil can be extracted stably and continuously. Even if the oil pollution is heavy or viscous, it can be effectively treated by the strong suction of the delivery pump 32. This design utilizes the buoyancy of water and the principle of oil-water separation, so that the oil pollution can automatically gather and be effectively collected without re-mixing into the water, thereby ensuring the continuity and efficiency of oil pollution treatment. In addition, the compact design of the oil skimming tank 1 and the oil suction seat 2 makes the device particularly suitable for operation in confined spaces such as rainwater collection ponds and dikes. Compared with the traditional oil skimming device 100, this device is smaller in size, making it easier to move and deploy flexibly in narrow areas, greatly improving its adaptability and ease of operation in complex environments.

[0033] In one embodiment, the oil suction seat 2 includes a dam 21 and a cover 22. The dam 21 is located on the bottom wall of the oil storage chamber 11, and the cover 22 is located on the side of the dam 21 away from the bottom wall of the oil storage chamber 11. The cover 22, the dam 21, and the bottom wall of the oil storage chamber 11 together form an oil suction chamber 23. The dam 21 has a second oil suction port 24, and the cover 22 has a third oil suction port 25. In this embodiment, the dam 21 and the cover 22 can form a relatively closed space at the bottom of the oil storage chamber 11, namely the oil suction chamber 23. Under the action of buoyancy, the oil will naturally gather in the oil suction chamber 23. The second oil suction port 24 is located on the dam 21, which allows the oil to flow from the oil storage chamber 11 into the oil suction chamber 23. The third oil suction port 25 is located on the cover 22, which further ensures that the oil can be successfully extracted. Overall, this structural design enables the skimming device 100 to achieve efficient and stable oil collection within a limited space, greatly improving the ability to separate and treat oil and water.

[0034] In one embodiment, the oil skimming device 100 further includes a quick-connect fitting 4 disposed at the third oil suction port 25, which connects the third oil suction port 25 and the oil suction pipe 31. The quick-connect fitting 4 typically features good sealing performance, quick connection, and easy maintenance, allowing for quick connection and disconnection of the interface between the oil suction pipe 31 and the third oil suction port 25. This simplifies the operation process, reduces time consumption due to connection and disassembly, and allows for rapid disconnection when the oil suction pipe 31 needs to be replaced or cleaned, facilitating maintenance and upkeep. Furthermore, the design of the quick-connect fitting 4 also considers long-term reliability, ensuring the stability and durability of the oil skimming device 100 under continuous operating conditions. In practical use, the quick-connect fitting 4 can be a clamp-type connector, a threaded connector, or a plug-in connector.

[0035] In one embodiment, the quick-connect component 4 is either a quick-connect coupling 4b or a flange 4a. In this embodiment, the quick-connect coupling 4b is typically designed with a structure that allows for quick insertion and removal for ease of operation. The quick-connect coupling 4b may also be equipped with sealing elements, such as O-rings or gaskets, to ensure the sealing of the connection and prevent oil leakage. One end of the suction pipe 31 is typically connected to the quick-connect coupling 4b via a threaded connection, quick-connect, or other suitable connection method. The flange 4a is a component fixed to the third suction port 25 of the skimming device 100, and it has a flange hole for connecting the suction pipe 31. The function of the flange 4a is to provide a stable interface, allowing the suction pipe 31 to be securely connected to the suction port.

[0036] In one embodiment, the oil skimming device 100 further includes a control rod 5, which is fixedly connected to the top of the oil skimming bucket 1. In this embodiment, the control rod 5 and the top of the oil skimming bucket 1 are integrated by bolts or welding. By operating the control rod 5, the immersion depth of the oil skimming bucket 1 in the oily wastewater can be precisely controlled. This adjustment function allows the operator to adjust the position of the oil skimming bucket 1 according to the concentration of oil and the water level, thereby optimizing the oil collection process. When oil needs to be collected, the operator can use the control rod 5 to slowly lower the oil skimming bucket 1 to the appropriate depth of the oily wastewater. During the oil collection process, the operator can monitor the immersion depth of the oil skimming bucket 1 in real time and make fine adjustments using the control rod 5 as needed. Once enough oil has been collected, the operator can use the control rod 5 again to adjust the oil skimming bucket 1 to avoid sucking in more wastewater. With this design, the oil skimming device 100 can not only work efficiently in a limited space but also maintain good adaptability and operability under different working conditions.

[0037] In one embodiment, the control lever 5 is inclined relative to the skimming tank 1. In this embodiment, the inclined control lever 5 can provide a greater torque, allowing the operator to effectively control the position of the skimming tank 1 with a smaller force, reducing physical exertion during operation. Furthermore, in a limited space, the inclined control lever 5 can make better use of space, avoid interference with surrounding equipment or structures, and improve the layout flexibility of the device.

[0038] In one embodiment, the oil skimming device 100 further includes a connecting lock structure 6, which includes a lug 61 and a movable rod 62. The lug 61 is located at the top of the oil skimming tank 1 and has a connecting hole. One end of the movable rod 62 has a connecting ring, which is fitted into the connecting hole to movably connect the movable rod 62 and the lug 61. By manipulating the movable rod 62, the operator can move the oil skimming tank 1 laterally at multiple angles. This allows the oil skimming tank 1 to move left and right on the water surface, facilitating precise positioning of areas with concentrated oil sludge and also facilitating operation of the oil skimming tank 1 on a larger water surface.

[0039] Of course, in some embodiments, the control lever 5 and the connecting lock structure 6 can be set at the same time, so that the oil skimming barrel 1 can not only control the immersion depth of the oil skimming barrel 1 in the vertical direction, but also perform rapid and accurate positioning in the horizontal direction, thereby greatly improving the operational flexibility and efficiency of the oil skimming device 100.

[0040] To ensure efficient oil skimming, in one embodiment, the distance from the bottom of the first oil suction port 12 to the bottom wall of the oil storage chamber 11 is A, and the distance from the end face of the oil suction seat 2 away from the bottom wall of the oil storage chamber 11 to the bottom wall of the oil storage chamber 11 is B, where A > B. This allows the operator a greater margin of error when controlling the immersion depth of the oil skimming tank 1. Even if the oil skimming tank 1 sinks slightly, it is less likely that the oil suction seat 2 will directly contact the wastewater below the oil layer. This not only maintains the continuity and stability of oil skimming but also effectively improves the oil skimming efficiency of the oil skimming device 100, while reducing maintenance costs and operational difficulty.

[0041] In one embodiment, the outer wall of the skimming tank 1 is provided with a plurality of first oil suction ports 12, which are evenly distributed along the circumference and / or axial direction of the skimming tank 1 on the outer wall of the skimming tank 1. By increasing the number of suction points, the inflow rate of oil is accelerated, allowing the skimming tank 1 to collect more oil in the same amount of time, thereby improving the uniformity and efficiency of the entire skimming process. Furthermore, due to the uniform distribution of the suction ports, oil can be effectively prevented from escaping from the side of the skimming tank 1 during the skimming process, improving the integrity of the skimming. If one suction port is blocked by impurities, the other suction ports can still continue to operate, making maintenance and cleaning more flexible and convenient.

[0042] In one embodiment, the oil suction pipe 31 is a rubber hose. Rubber hoses have good flexibility, allowing them to be easily bent and adapted to different angles and shapes. This makes them more flexible when connecting different components or using them in irregular environments, further facilitating the rapid movement and deployment of the skimming device 100 in confined areas.

[0043] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An oil skimming device, characterized in that include: An oil skimming barrel is provided with an oil storage chamber, and a first oil suction port is provided on the outer side wall of the oil skimming barrel to connect the oil storage chamber with the outside. An oil suction seat is provided on the bottom wall of the oil storage cavity. The oil suction seat has an oil suction cavity, and the outer side wall of the oil suction seat has a second oil suction port and a third oil suction port that connect the oil storage cavity and the oil suction cavity. as well as The suction assembly includes an oil suction pipe, a delivery pump, an oil outlet pipe, and a collection tank. One end of the oil suction pipe extends into the oil storage chamber and communicates with the third oil suction port. The other end of the oil suction pipe is communicated with the input end of the delivery pump. The output end of the delivery pump is communicated with the collection tank. The delivery pump is used to deliver the oil in the oil suction chamber to the collection tank through the oil suction pipe and the oil outlet pipe.

2. The oil skimming device of claim 1, wherein The oil suction seat includes a dam body and a cover body. The dam body is located on the bottom wall of the oil storage cavity, and the cover body is located on the side of the dam body away from the bottom wall of the oil storage cavity. The cover body, the dam body, and the bottom wall of the oil storage cavity together form the oil suction cavity. The dam body has a second oil suction port, and the cover body has a third oil suction port.

3. The oil skimming device of claim 1, wherein The oil skimming device also includes a quick-connect fitting disposed at the third oil suction port, the quick-connect fitting being used to connect the third oil suction port and the oil suction pipe.

4. The oil skimming device of claim 3, wherein The quick-connector is a quick-connect fitting or a flange.

5. The oil skimming device of claim 1, wherein The oil skimming device also includes a control rod, which is fixedly connected to the top of the oil skimming barrel.

6. The oil skimming device of claim 5, wherein The control lever is tilted relative to the skimming bucket.

7. The oil skimming device of claim 1, wherein The oil skimming device also includes a connecting lock structure, which includes a lug and a movable rod. The lug is located at the top of the oil skimming barrel and has a connecting hole. One end of the movable rod has a connecting ring, which is fitted into the connecting hole to movably connect the movable rod with the lug.

8. The oil skimming device of claim 1, wherein The distance from the bottom end of the first oil suction port to the bottom wall of the oil storage cavity is A, and the distance from the end face of the oil suction seat away from the bottom wall of the oil storage cavity to the bottom wall of the oil storage cavity is B, where A > B.

9. The oil skimming device of claim 1, wherein The outer wall of the oil skimming barrel is provided with a plurality of first oil suction ports, which are evenly distributed on the outer wall of the oil skimming barrel along the circumference and / or the axial direction of the oil skimming barrel.

10. The oil skimming device of claim 1, wherein The oil suction pipe is a rubber hose.