Floating oil structure

Abstract

The utility model discloses a floating oil structure which comprises a bearing container, a liquid inlet area, a floating oil area and a liquid discharge area are arranged in the bearing container, a plurality of layers of partition plates are arranged in the floating oil area and divide the floating oil area into a plurality of floating oil layers, oil passing holes communicated with the upper floating oil layers are formed in the partition plates, and oil baffles are arranged between the floating oil area and the liquid discharge area. The oil slick area is divided into a plurality of small-height oil slick layers by arranging the partition plates in the oil slick area, mixed liquid flows through the oil slick layers at the same time and oil slick is carried out synchronously, the floating height of oil droplets is divided into small sections to be independently carried out, the vertical floating distance of the oil droplets is effectively shortened, and the device has the advantages of being fast in oil droplet gathering, short in required staying time, high in treatment efficiency and low in cost. Oil-water separation is thorough; and miniaturization design is easy.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil floating of oil-water separation equipment, in particular to an oil floating structure with a small floating distance and a short residence time. Background Art

[0002] In oil-water separation technology, the oil floating process is one of the most important steps in achieving effective oil-water separation. The oil-water separation effect of the oil floating process depends on the time required for the oil droplets in the mixed liquid to float vertically and the length of time the mixed liquid remains in the oil floating device. Generally speaking, the shorter the vertical floating time of the oil droplets and the longer the residence time, the more thorough the oil-water separation and the better the separation effect. The vertical floating time of the oil droplets is affected by the size of the oil droplets and the vertical distance they float. The larger the oil droplets, the faster they float and the shorter the required floating time. The shorter the distance the oil droplets float, the shorter the required floating time. The residence time is affected by factors such as the flow rate of the mixed liquid and the flow length. The slower the flow rate and the longer the pipeline, the longer the floating time provided.

[0003] Most existing oil floating devices improve the oil-water separation effect by increasing the residence time of the mixed liquid within the oil floating device. Existing oil floating devices include: 1. Large-volume oil floating devices, which extend the effective residence time of the mixed liquid in the oil floating tank through large volume and slow flow rate; 2. Long-pipeline oil floating devices, which extend the flow path of the oil-water mixture to provide sufficient time for the oil droplets to float vertically. Some oil floating devices also adjust the vertical floating distance and flow rate of the oil droplets by controlling the pipeline aperture. The former usually requires the oil floating device to have a greater depth, which increases the floating distance of the oil droplets, to a certain extent extending the required residence time and restricting the improvement of treatment efficiency. The latter usually occupies a larger area, and overly long and thin pipelines can easily make it difficult to collect the floating oil. To ensure the flow rate, this type of oil floating device usually also requires a higher flow rate. However, a high flow rate can easily cause the oil droplets to be impacted and micronized, which to a certain extent weakens the oil-water separation effect.

[0004] Therefore, the research direction of this application is to determine what kind of oil floating structure can make the oil floating device have a smaller volume, a shorter residence time, a larger flow rate and ensure a better oil-water separation effect.

[0005] In addition, existing oil-water separation equipment usually sets up the coalescing device and the oil floating device separately. The oil-water mixture is coalesced in the coalescing device and then introduced into the oil floating device for overall oil floating. This method takes advantage of the coalescing device's ability to increase the particle size of oil droplets, but cannot quickly achieve preliminary oil-water separation at the outlet end of the coalescing device. The oil content of the mixed liquid entering the oil floating device is still relatively high, which to a certain extent restricts the processing efficiency of the oil-water separation equipment. Utility Model Content

[0006] The purpose of this utility model is to provide an oil floating structure to overcome the above-mentioned defects.

[0007] The utility model is achieved through the following technical solutions:

[0008] The utility model provides an oil floating structure, comprising a carrying container for a mixed liquid to stay, wherein the carrying container is provided with a liquid inlet area, an oil floating area, and a liquid discharge area, wherein the liquid inlet area is connected to a liquid inlet, the liquid discharge area is connected to a water discharge outlet, and the top surface of the oil floating area is provided with an oil discharge outlet; the oil floating area is provided with multiple layers of parallel partitions, the partitions dividing the oil floating area into multiple oil floating layers, the partitions are provided with oil holes, the oil holes are connected to the upper oil floating layer, and an oil baffle is provided between the oil floating area and the liquid discharge area;

[0009] Based on the above technical solution, by setting partitions in the oil floating area, the oil floating area is divided into multiple smaller oil floating layers in the height direction. The mixed liquid flows through the oil floating layers at different height ranges at the same time, and independent oil floating is realized synchronously in the oil floating layers. The floating height of the oil droplets is divided into small sections and carried out independently, which effectively shortens the vertical floating distance of each oil droplet. Even tiny oil droplets can be fully collected. Since the floating distance of the oil droplets is short, the required oil droplet aggregation time is short, so the length of the oil floating area can be shortened and the volume can be reduced. The oil floating structure has the advantages of fast oil droplet aggregation, short required residence time, high treatment efficiency, thorough oil-water separation and easy miniaturization design.

[0010] Preferably, an oil collecting trough is provided on the bottom surface of the partition, a guide slope is provided in the oil collecting trough, and the oil through hole is provided at the end of the guide slope. This design is conducive to the rapid gathering of oil droplets on the top of each floating oil layer and quickly guiding them to the oil through hole for discharge, avoiding the oil layer being too thick and causing the oil droplets at the oil-water interface to mix into the mixed liquid again.

[0011] Preferably, the oil through hole is connected to an oil guide pipe, the lower end of the oil guide pipe is connected to the lower floating oil layer through the oil through hole, and the upper end of the oil guide pipe is open to the bottom surface of the upper partition of the floating oil layer. This design can directly guide the oil droplets gathered in the lower floating oil layer to float to the upper floating oil layer without passing through the mixed liquid, which is beneficial to improving the oil-water separation effect.

[0012] Preferably, the oil through hole is connected to an oil guide pipe, which runs through the floating oil layer to the uppermost floating oil layer. The upper end of the oil guide pipe opens at the top of the uppermost floating oil layer. This design can directly guide the oil layer accumulated in the lower floating oil layer to float to the top layer, and can avoid excessive oil droplets accumulated in the upper floating oil layer, resulting in an increase in the proportion of oil droplets re-mixing into the liquid, thereby weakening the oil-water separation effect.

[0013] More preferably, the oil guide pipe is provided with an oil hole, and the oil hole is provided on the pipe wall of the oil guide pipe adjacent to the bottom surface of each partition. This design enables the oil guide pipe to simultaneously guide the accumulated oil droplets of multiple floating oil layers, which is beneficial to the rapid discharge of the accumulated oil droplets of each floating oil layer and simplifies the design of the oil guide structure.

[0014] Preferably, a support bar is provided in the carrying container, and the partition is placed on the support bar to achieve positioning, and the bottom surface of the partition and the support bar form an oil collecting groove for the floating oil layer. This design can temporarily store the accumulated oil droplets in the oil collecting groove, thereby reducing the degree of disturbance of the accumulated oil droplets during the flow of the mixed liquid.

[0015] Preferably, the partition is provided with support columns downward to form multi-point support for the partition, which can adapt to the setting of a larger partition without deformation affecting the flow of liquid.

[0016] More preferably, the support column is a tubular structure, the lower end opening of the support column is connected to the oil hole of the lower partition, and the support column is provided with an oil hole near the bottom surface of the partition. This design uses the support column as an oil guide pipe at the same time, which is conducive to simplifying the structural design of the oil floating area.

[0017] More preferably, the support column is a tubular structure, the support column is connected to the oil holes of the adjacent layer of partitions, the support column is provided with an oil hole near the bottom surface of the upper partition, the oil hole of the uppermost partition is connected to an oil guide pipe, and the upper end of the oil guide pipe opens at the top of the uppermost floating oil layer;

[0018] Preferably, a uniform distribution plate is provided between the oil floating area and the liquid inlet area, and a plurality of flow holes are provided on the uniform distribution plate. This design allows the mixed liquid to enter the oil floating layer evenly and preliminarily separate larger oil droplets, thereby improving the oil-water separation efficiency of the oil floating area.

[0019] Preferably, the flow hole density of the uniformly distributed plate gradually increases from top to bottom. This design controls the flow rate of each floating oil layer by changing the hole density, so that the upper floating oil layer allows for a greater thickness of oil droplets to gather, which is conducive to the layer-by-layer collection and discharge of oil droplets; at the same time, because the upper oil droplets in the liquid inlet area are large and the lower oil droplets are small, the large flow rate of the lower layer can allow sufficient oil droplets in the mixed liquid to collide with each other to form large oil droplets, which are then easier to gather and float.

[0020] Furthermore, the liquid inlet area is provided with a coalescing device, the inlet end of the coalescing device is communicated with the liquid inlet, and the outlet end of the coalescing device is provided at the upper part of the liquid inlet area and communicated with the liquid inlet area;

[0021] Based on the above technical solution, the oil-water mixture passes through a coalescing device before the oil floats, causing the oil droplets to aggregate and grow into larger oil droplets. After the mixed liquid enters the liquid inlet area from the outlet end of the coalescing device, the oil droplets float directly, and the water phase gradually sinks and enters the oil floating area in layers. The initial oil-water separation in the liquid inlet area is faster and the degree of separation is higher, which effectively reduces the oil content of the mixed liquid entering the oil floating area, thereby allowing the flow rate of the oil floating area to be increased, further shortening the residence time of the mixed liquid in the device, and improving the treatment efficiency.

[0022] Furthermore, an air flotation device is provided at the bottom of the liquid inlet area to achieve preliminary aggregation and growth of oil droplets before the mixed liquid enters the oil floating area.

[0023] Beneficial effects

[0024] The oil floating structure of the utility model has the following advantages or beneficial effects:

[0025] 1. By setting partitions in the oil floating area, the oil floating area is divided into multiple smaller oil floating layers in the vertical direction. The mixed liquid flows through the oil floating layers at different heights at the same time, and independent oil floating is carried out synchronously in the oil floating layers. The floating height of the oil droplets is divided into small sections and the floating height is carried out independently. This effectively shortens the vertical floating distance of each oil droplet. Even tiny oil droplets can be fully collected. In addition, since the floating distance of the oil droplets is short, the required oil droplet aggregation time is short, which can shorten the flow length of the oil floating area and realize the miniaturization of the oil floating structure. The oil floating structure has the advantages of fast oil droplet aggregation, short required residence time, high treatment efficiency, complete oil-water separation, and easy miniaturization design.

[0026] 2. By setting up oil guide pipes or support columns with oil guide pipe functions in the floating oil layer, the oil droplets gathered in each floating oil layer can be directly guided to float to the upper layer, reducing the proportion of re-mixing with the mixed liquid, and achieving more thorough and efficient oil-water separation.

[0027] 3. By setting a coalescence device or an air flotation device in the liquid inlet area, the oil droplets are first aggregated and grown into oil droplets with larger particle size, and the oil droplets are directly floated after the mixed liquid enters the liquid inlet area, and the water phase gradually sinks and enters the oil floating area in layers to achieve preliminary separation of oil and water, which is beneficial to improving the oil floating efficiency of the oil floating area and further improving the oil-water separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0029] Figure 1 This is a schematic structural diagram of the first embodiment of the present utility model;

[0030] Figure 2 For this utility model Figure 1 A magnified schematic diagram of part C;

[0031] Figure 3 For this utility model Figure 1 Schematic diagram of the structure of the AA section;

[0032] Figure 4 For this utility model Figure 1 Schematic diagram of the structure of the middle BB section;

[0033] Figure 5 This is a schematic structural diagram of the second embodiment of the present utility model;

[0034] Figure 6 For this utility model Figure 5 Schematic diagram of the structure of part D;

[0035] Figure 7 This is a schematic structural diagram of the third embodiment of the present invention;

[0036] Figure 8 For this utility model Figure 7 Schematic diagram of the structure of part E;

[0037] Figure 9 This is a schematic diagram of the oil slick area structure of the fourth embodiment of the present utility model;

[0038] Figure 10 This is a schematic structural diagram of a fifth embodiment of the present invention;

[0039] In the figure: a carrying container 100; a liquid inlet area 101; an oil floating area 102; an oil storage area 102a; a liquid discharge area 103; a liquid inlet 1; a uniform distribution plate 2; a partition 3; an oil collecting groove 3a; a guide slope 3a1; an oil hole 3b; an oil guide pipe 3c; an oil through hole 3c1; a support column 3d; a floating oil layer 4; an oil baffle 5; an overflow plate 6; a drain port 7; a support bar 8; a coalescing device 9; an inlet end 9a; and an outlet end 9b. DETAILED DESCRIPTION

[0040] The present invention will be further described in detail below with reference to the embodiments, but the embodiments of the present invention are not limited thereto.

[0041] Example 1

[0042] This embodiment provides an oil floating structure, such as Figure 1As shown, it includes a carrying container 100 for the mixed liquid to stay. The carrying container 100 can be a container in various forms such as a tank body and a tank body. The carrying container 100 is provided with a liquid inlet area 101, an oil floating area 102 and a liquid discharge area 103. The liquid inlet area 101 is connected to a liquid inlet 1. The two ends of the oil floating area 102 are respectively connected to the liquid inlet area 101 and the liquid discharge area 103. An oil baffle plate 5 is provided between the oil floating area 102 and the liquid discharge area 103. The oil baffle plate 5 forms an oil storage area 102a at the top of the carrying container 100. The liquid discharge area 103 is connected to a drain port 7. An overflow plate 6 is also provided in the liquid discharge area 103. An oil discharge port (not shown in the drawings) is also provided at the top of the oil floating area 102, and the oil discharge port is connected to the oil storage area 102a. Support bars 8 are provided at different heights in the carrying container 100. Partitions 3 are provided on the support bars 8. The partitions 3 divide the oil floating area 102 into multiple oil floating layers 4. The number of the oil floating layers 4 is determined according to the required shortened residence time and the required flow rate. The heights of the oil floating layers 4 can be the same or can be set according to actual needs, such as Figure 1 As shown, except for the top layer, the remaining floating oil layers 4 are all of the same height. The bottom surface of the partition 3 and the support bars 8 form an oil collection groove for the floating oil layer 4, which is used to temporarily store accumulated oil droplets. The support bars 8 not only provide support for the partition 3, but also block and restrict the flow of the mixed liquid, thereby reducing the degree of disturbance of the accumulated oil droplets during the mixed liquid flow.

[0043] During use, the mixed liquid in the liquid inlet area 101 is divided into several liquid layers of small heights during the flow process, namely the floating oil layer 4. Each liquid layer floats the oil synchronously, and the floating and gathering height of the oil droplets is reduced exponentially. Accordingly, the time required for the oil droplets to float is also shortened exponentially. When the flow length is the same, the degree of oil-water separation is increased exponentially. Figure 1 As shown, three oil floating layers 4 are provided within the oil floating area 102. The time required for the oil droplets to float is reduced to 1 / 3 of the original time. The residence time of the mixed liquid within the containment vessel 100 is also reduced to 1 / 3 of the original time. Without changing the size of the containment vessel 100, the oil-water separation effect can be increased by approximately 3 times the original time, thereby greatly improving the separation efficiency.

[0044] Further, if Figure 2As shown, the bottom surface of the partition 3 is provided with an oil collecting groove 3a. A diverting slope 3a1 is provided within the oil collecting groove 3a. The distal end of the diverting slope 3a1 is provided with an oil passage hole 3b that penetrates the partition 3 and connects to the floating oil layer 4 above the partition 3. Preferably, the oil passage hole 3b is connected to an oil guide pipe 3c. The lower end of the oil guide pipe 3c connects to the next floating oil layer 4 through the oil passage hole 3b. The upper end of the oil guide pipe 3c opens at the bottom surface of the partition 3 above the previous floating oil layer 4. Oil droplets accumulated in each floating oil layer 4 are contained within the oil collecting groove 3a, flow along the diverting slope 3a1 toward the oil passage hole 3b, and are discharged from the floating oil layer 4 through the oil passage hole 3b. The oil droplets in the oil passage hole 3b are further guided directly through the oil guide pipe 3c to float to the previous floating oil layer 4, eliminating the need for secondary floating and collection of the mixed liquid in the previous floating oil layer 4. This improves the efficiency and effectiveness of oil-water separation.

[0045] Further, if Figure 3 As shown, in order to make the mixed liquid enter each oil floating layer 4 evenly and to retain the oil droplets with larger particle size in the liquid inlet area 101, a uniform distribution plate 2 is provided between the oil floating area 102 and the liquid inlet area 101, and the uniform distribution plate 2 is provided with multiple flow holes 2a. Preferably, the density of the flow holes 2a of the uniformly distributed plate 2 gradually increases from top to bottom to form flow control of each floating oil layer 4. The reason for this design is that: on the one hand, the closer to the upper layer, the higher the proportion of oil phase, the larger the oil droplets, the more oil droplets that need to be intercepted, and the more suitable the flow rate is. On the contrary, the closer to the lower layer, the higher the proportion of water phase, the smaller the oil droplets (large oil droplets float up quickly and are not easy to stay in the lower layer), the larger the allowable flow rate, and a large flow rate can make the mixed liquid have sufficient oil droplets that can collide with each other to form large oil droplets, which are easier to gather and float. On the other hand, the closer to the upper layer, the thicker the oil film on the top of the floating oil layer 4, and the lower flow rate is not easy to disturb the oil film, which is conducive to preventing the oil droplets at the oil-water interface from being driven by the liquid flow and re-mixed into the mixed liquid, reducing the oil-water separation effect.

[0046] Through the aforementioned technical solution, the oil floating structure of this embodiment can shorten the residence time of the mixed liquid in the oil floating structure by several times and ensure the oil-water separation effect. Even fine oil droplets can be fully collected. At the same time, the flow rate and the volume of the carrying container 100 can be adjusted according to this feature, or the oil-water separation effect can be further improved. The design of the oil guide pipe 3c can also avoid multiple oil-water mixing and separation to the greatest extent, thereby improving the oil-water separation effect. It has the advantages of high processing efficiency, thorough oil-water separation, and easy miniaturization design.

[0047] Example 2

[0048] This embodiment provides an oil floating structure, which differs from the first embodiment in that:

[0049] like Figure 5As shown, the oil guide pipe 3c passes through all the partitions 3 above the oil floating layer 4 and extends to the uppermost oil floating layer 4. The upper end of the oil guide pipe 3c opens at the top of the uppermost oil floating layer 4, that is, in the oil storage area 102a of the uppermost oil floating layer 4, so as to directly guide the oil accumulated in the lower oil floating layer 4 to float to the top layer, making the oil phase discharge path shorter and faster. Preferably, as Figure 6 As shown, the oil guide pipe 3c is provided with an oil through hole 3c1. The oil through hole 3c1 is provided on the pipe wall of the oil guide pipe 3c located at the top of the oil floating layer 4 to be penetrated. The provision of the oil through hole 3c1 enables the oil guide pipe 3c to simultaneously guide the accumulated oil droplets of multiple oil floating layers 4, thereby facilitating the rapid discharge of the accumulated oil droplets of each oil floating layer 4 and simplifying the design of the oil guide pipe 3c between the oil floating layers 4.

[0050] Other components not described in this embodiment and the relative positions and connection relationships between the components are the same as those in the first embodiment.

[0051] Example 3

[0052] This embodiment provides an oil floating structure, which differs from the first or second embodiment in that:

[0053] like Figure 7 As shown, the partition 3 is provided with support columns 3d downwards, and the support columns 3d form multi-point supports for the partition 3, so as to be suitable for larger partitions 3 without deformation. Preferably, the support columns 3d adopt a tubular structure, such as Figure 8 As shown, the lower end opening of the support column 3d is connected to the oil hole 3b of the lower partition 3, and the support column 3d is provided with an oil hole 3c1 near the bottom surface of the partition 3. The oil droplets gathered in the next floating oil layer 4 of the layer where the support column 3d is located pass through the oil hole 3b, the support column 3d and the oil hole 3c1 in turn into the top of the layer where the support column 3d is located, so that the oil phase is quickly gathered upward.

[0054] The advantage of this embodiment is that the support column 3d is used as the oil guide pipe 3c at the same time, which not only supports the partition 3 but also eliminates the need for an additional oil guide pipe 3c, and the design of the oil floating area 102 is simpler.

[0055] Example 4

[0056] This embodiment provides an oil floating structure, which differs from the third embodiment in that:

[0057] like Figure 9 As shown, the support column 3d is connected to the oil holes 3b of the adjacent layers of partitions 3. The oil holes 3b of each layer of partitions 3 are arranged relatively to each other, and the support columns 3d of each layer are connected in sequence. The support column 3d is provided with an oil hole 3c1 at a position close to the bottom surface of the upper partition 3. The oil hole 3b of the uppermost partition 3 is connected to an oil guide pipe 3c, and the upper end of the oil guide pipe 3c opens at the top of the uppermost floating oil layer 4.

[0058] The advantage of this embodiment is that the aligned support columns 3 d can simultaneously guide the accumulated oil droplets of multiple oil floating layers 4 , which is beneficial for the rapid discharge of the accumulated oil droplets of each oil floating layer 4 .

[0059] Example 5

[0060] This embodiment provides an oil floating structure, which differs from the first to fourth embodiments in that:

[0061] like Figure 10 As shown, the liquid inlet area 101 is provided with the coalescing device 9, the inlet end 9a of the coalescing device 9 is communicated with the liquid inlet 1, and the outlet end 9b of the coalescing device 9 is provided at the upper portion of the liquid inlet area 101 and communicated with the liquid inlet area 101;

[0062] During use, the oil-water mixture first flows through the coalescing device 9 before entering the liquid inlet area 101. The coalescing device 9 causes the oil droplets to aggregate and grow into oil droplets with larger particle size. The coalesced mixture enters the upper part of the liquid inlet area 101 from the outlet end 9b of the coalescing device 9. The oil droplets float directly, and the water phase gradually sinks and continues to separate oil and water during the sinking process. In addition, when the water phase sinks, it also enters the oil floating layer 4 in the oil floating area 102 in different height ranges in layers for oil floating.

[0063] The advantage of this embodiment lies in the fact that the coalescing device 9 is directly arranged within the liquid inlet area 101, and the coalesced oil-water mixture is directly separated within the liquid inlet area 101. Compared with the structure of existing oil-water separation devices that first coalesce and then introduce the mixed liquid into the oil floating equipment for oil floating, this embodiment can achieve preliminary oil-water separation before oil floating, and the separation speed is fast and the separation degree is high. This effectively reduces the oil content of the mixed liquid entering the oil floating area 102, thereby allowing for an increase in the flow rate of the oil floating area 102, further shortening the residence time of the mixed liquid within the device, and improving the device's treatment efficiency. This device integrates both coalescing and oil floating functions, and has the advantages of a simple device structure, a large flow rate, thorough oil-water separation, and high treatment efficiency.

[0064] Example 6

[0065] This embodiment provides an oil floating structure, which differs from the fifth embodiment in that:

[0066] An air flotation device is provided at the lower portion of the liquid inlet area 101. Through the air flotation device, the oil droplets in the mixed liquid of the liquid inlet gather and grow, and achieve preliminary oil-water separation as they float upward densely, thereby reducing the oil content of the mixed liquid entering the oil floating area; at the same time, the air bubbles that have not yet had time to float upward enter the various oil floating layers with the mixed liquid, and continue to collect oil droplets in each oil floating layer, further increasing the oil droplet aggregation speed, thereby improving the oil-water separation effect.

[0067] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of protection of the present invention.

Claims

1. An oil floating structure, comprising a carrying container for a mixed liquid to reside, wherein the carrying container is provided with a liquid inlet area, an oil floating area, and a liquid discharge area, wherein the liquid inlet area is connected to a liquid inlet, the liquid discharge area is connected to a water outlet, and an oil discharge outlet is provided on a top surface of the oil floating area; characterized in that: The oil floating area is provided with multiple layers of parallel partitions, which divide the oil floating area into multiple oil floating layers. The partitions are provided with oil holes, which are connected to the upper oil floating layer. An oil baffle is provided between the oil floating area and the drainage area.

2. The oil floating structure according to claim 1, characterized in that: The oil hole is connected with an oil guide pipe, the lower end of the oil guide pipe is connected to the lower floating oil layer through the oil hole, and the upper end of the oil guide pipe opens to the bottom surface of the upper partition of the floating oil layer.

3. The oil floating structure according to claim 1, characterized in that: The oil hole is connected with an oil guide pipe, and the oil guide pipe runs through the floating oil layer to the uppermost floating oil layer, and the upper end of the oil guide pipe opens at the top of the uppermost floating oil layer.

4. The oil floating structure according to claim 3, characterized in that: An oil through hole is provided on the oil guide pipe, and the oil through hole is arranged on the pipe wall of the oil guide pipe adjacent to the bottom surface of each partition plate.

5. The oil floating structure according to claim 1, characterized in that: The carrying container is provided with a support bar, the partition is placed on the support bar to achieve positioning, and the bottom surface of the partition and the support bar form an oil collecting groove for the floating oil layer.

6. The oil floating structure according to claim 1, characterized in that: The partition is provided with a support column downward, the support column is a tubular structure, the lower end opening of the support column is connected to the oil hole of the lower partition, and the support column is provided with an oil hole near the bottom surface of the partition.

7. The oil floating structure according to claim 6, characterized in that: The support column is connected to the oil holes of the adjacent partition plates. The support column is provided with an oil hole near the bottom surface of the upper partition plate. The oil hole of the uppermost partition plate is connected to an oil guide pipe, and the upper end of the oil guide pipe opens at the top of the uppermost floating oil layer.

8. The oil floating structure according to claim 1, characterized in that: A uniform distribution plate is provided between the oil floating area and the liquid inlet area, and a plurality of flow holes are provided on the uniform distribution plate.

9. The oil floating structure according to claim 1, characterized in that: The liquid inlet area is provided with a coalescing device, the inlet end of the coalescing device is communicated with the liquid inlet, and the outlet end of the coalescing device is provided at the upper part of the liquid inlet area and is communicated with the liquid inlet area.

10. The oil floating structure according to claim 1, characterized in that: An air flotation device is provided at the lower part of the liquid inlet area.

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