Oil filtering device for carrying out oil-water separation on water tank

Abstract

The utility model provides an oil filtering device for carrying out oil-water separation on a water tank. The oil filtering device comprises an oil collecting assembly extending into a cavity along a through hole, and an oil filtering assembly arranged on the oil collecting assembly and used for filtering oil. Wherein the oil collecting assembly comprises a bottom wall and a side wall, the side wall is arranged on the bottom wall and extends upwards, the side wall and the bottom wall jointly define a cavity used for containing oil, the oil filtering assembly is provided with a channel used for being communicated with the cavity, and the channel is constructed to allow oil to pass through and enter the cavity. Therefore, oil can be transferred into the oil collecting assembly, and then the oil is sucked. In this way, the technical problems that in the prior art, oil collection is difficult, and useless work done by a negative pressure mechanism is increased are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of oil-water separation, and in particular relates to an oil filter device used for separating oil and water in a water tank. Background Art

[0002] During oil and gas production, it is often necessary to inject water into the oil layer in the well to maintain the formation pressure and improve the production yield. In the prior art, a water tank storing water is generally set up next to the well. When water needs to be injected into the well, the production pipeline that transports oil and gas is used as a water pipe to transport water, thereby injecting water into the well to improve the production efficiency.

[0003] Although this method can complete the work of injecting water into the well, using the production pipeline as a channel for transporting oil and gas as well as a channel for transporting water will cause oil to be contained in the water tank. When the oil in the water tank reaches a certain thickness, it will seriously affect the progress of water injection. Therefore, it is necessary to recover the floating oil in the water tank.

[0004] In the prior art, Figure 1 As shown, a conduit 20 connected to the negative pressure mechanism is generally arranged in the oil layer of the water tank 10 along the through hole 105 on the water tank 10, and negative pressure is applied to the oil layer in the water tank 10, so that the oil in the water tank 10 moves along the conduit 20, thereby recovering the floating oil in the water tank 10.

[0005] Although the floating oil in the water tank 10 can be recovered in this way, the water in the lower layer of the water tank 10 is easily sucked away in this way, which leads to the technical problems of difficulty in collecting oil and increase in useless work done by the negative pressure mechanism. Utility Model Content

[0006] In order to overcome at least one or more of the above-mentioned defects in the prior art, the utility model provides an oil filter device for separating oil and water in a water tank, wherein the water tank comprises a chamber defined by a bottom plate, a side plate and a cover plate, wherein a through hole communicating with the chamber is provided on the cover plate,

[0007] The device comprises an oil collecting assembly extending into the chamber along the through hole, and an oil filtering assembly arranged on the oil collecting assembly for filtering the oil.

[0008] The oil collecting assembly comprises a bottom wall, a side wall arranged on the bottom wall and extending upward, wherein the side wall and the bottom wall together define a cavity for containing oil.

[0009] The oil filter assembly is provided with a channel for communicating with the cavity, and the channel is configured to allow oil to pass therethrough and enter the cavity.

[0010] In one embodiment, the oil filter assembly includes a connecting portion disposed on a side wall of the oil collecting assembly and extending upward, and the channel is disposed along the circumference of the connecting portion and penetrates the connecting portion to communicate with the cavity.

[0011] In one embodiment, the connecting portion is configured as at least one connecting rod, and the connecting rod is disposed on the side wall and extends upward.

[0012] In one embodiment, the connecting rods are provided in two numbers and are distributed on the side wall in an opposite manner, and a channel is formed between the two connecting rods.

[0013] In one embodiment, the connecting portion includes a plurality of deformable wires connected to the side wall and extending upward, and the plurality of deformable wires are interwoven with each other to form a plurality of diamond-shaped channels.

[0014] In one embodiment, the connecting portion is configured as a cylindrical structure extending upward along the side wall, and a plurality of circular through holes penetrating the wall of the connecting portion are configured on the connecting portion along the wall of the connecting portion, and each of the circular through holes forms a channel.

[0015] In one embodiment, it is characterized in that the device further comprises a fixing portion arranged at the free end of the connecting portion, for connecting with the cover plate of the water tank.

[0016] In one embodiment, the fixing portion is disposed along the free end of the connecting portion and extends radially outward to form a flange structure.

[0017] In one embodiment, at least one handle is further provided on the fixing portion.

[0018] In one embodiment, the oil collecting assembly is configured as a circular cylinder, and the oil filtering assembly is configured as a circular cylinder extending upward along the free end of the oil collecting assembly, for guiding the fluid in the water tank.

[0019] In general, the above technical solutions conceived by the utility model can achieve the following beneficial effects compared with the prior art:

[0020] In the utility model, an oil collecting assembly and an oil filtering assembly are connected together, and the oil collecting assembly forms a cavity for accommodating a catheter. At the same time, a channel interconnected with the cavity is provided on the oil filtering assembly. In this way, when it is necessary to collect the oil layer in the water tank, the device is arranged in the water tank, and the opening of the oil collecting assembly is located at the boundary between the oil layer and the water layer. Then, negative pressure is applied to the catheter. Under this arrangement, the oil in the water tank can enter the oil collecting assembly along the channel, and move along the catheter located in the oil collecting assembly, thereby sucking out the oil in the water tank. Thus, oil-water separation is completed. In this way, the oil can be transferred to the oil collecting assembly first, and then the oil can be sucked out, which solves the technical problems of the difficulty in collecting oil in the prior art and the increase in useless work done by the negative pressure mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0022] Figure 1 The overall structure of a water tank installed with the oil filter device for oil-water separation in the water tank according to the utility model is schematically shown;

[0023] Figure 2 The overall structure of the first embodiment of the oil filter device for separating oil and water in a water tank according to the utility model is schematically shown;

[0024] Figure 3 The overall structure of the second embodiment of the oil filter device for separating oil and water in a water tank according to the utility model is schematically shown.

[0025] It should be noted that the drawings are not necessarily drawn according to actual scale.

[0026] In all the drawings, the same reference numerals represent the same technical features, specifically: 10-water tank; 101-bottom plate; 102-side wall; 103-chamber; 104-cover plate; 105-through hole; 20-conduit; 100-oil filter device for separating oil and water in the water tank; 1-oil collecting assembly; 11-bottom wall; 12-side wall; 13-cavity; 2-oil filter assembly; 21-connecting part; 22-channel; 3-fixing part; 4-handle. DETAILED DESCRIPTION

[0027] In order to better understand the purpose, structure and function of the utility model, a ball seat of the utility model is further described in detail below in conjunction with the accompanying drawings.

[0028] like Figure 1As shown, the water tank 10 includes a bottom plate 101, a side plate 102 disposed on the bottom plate 101 and extending upward, the side plate 102 and the bottom plate 101 together define a top opening, and the inside has a structure for accommodating a chamber 103. A cover plate 104 is disposed at the bottom plate opening, and the cover plate 104 is fixedly connected to the side plate 102 to seal the chamber 103. At the same time, a through hole 105 is disposed on the cover plate 104, and the through hole 105 passes through the cover plate 104 and communicates with the chamber 103.

[0029] In this arrangement, when the oil-water mixture in the water tank 10 needs to be separated, a conduit 20 connected to a negative pressure mechanism (not shown in the figure) is arranged in the through hole 105, and the free end of the conduit is located in the oil layer. Then, the negative pressure mechanism is started, and at this time, the negative pressure force generated by the negative pressure mechanism 20 is transmitted to the oil layer along the conduit 20, and the oil layer is negatively pressurized, so that the oil layer can move along the path formed by the conduit 20. In this way, the oil-water mixture in the water tank 10 is separated. It should be noted that the structures of the water tank 10, the negative pressure mechanism, and the conduit 20 are well known to those skilled in the art.

[0030] Figure 2 The overall structure of the oil filter device 100 for separating oil from water in a water tank according to the utility model is schematically shown. Figure 2 In the illustrated embodiment, the oil filter device 100 for separating oil from water in the water tank 10 comprises an oil collecting assembly 1, wherein the oil collecting assembly 1 comprises a bottom wall 11, and a side wall 12 disposed on the bottom wall 11 and extending upward, wherein the side wall 12 and the bottom wall 11 together define a structure with a sealed bottom, an open top, and a cavity 13 inside. In this way, the cavity 13 can be used to contain oil, thereby collecting the oil.

[0031] In this arrangement, when in use, the oil collecting assembly 1 is arranged in the water tank 10 along the through hole 105, and the opening of the oil collecting assembly 1 is located at the boundary between the oil layer and the water layer. At this time, the oil layer will enter the cavity 13 along the opening of the oil collecting assembly 1 and fill the cavity 13. At the same time, the conduit 20 is arranged in the cavity 13. At this time, the negative pressure mechanism (not shown in the figure) connected to the conduit 20 is started.

[0032] During this process, the negative pressure force generated by the negative pressure mechanism will be transmitted to the cavity 13 along the conduit 20, thereby absorbing the oil in the cavity 13. As the negative pressure mechanism continues to generate negative pressure force, the oil in the cavity 13 will be continuously absorbed. At the same time, the oil layer in the water tank 10 will continue to enter the cavity 13 along the opening of the oil collecting assembly 1. Thus, the oil-water separation work of the water tank 10 is completed.

[0033] In one embodiment, Figure 2 As shown, the device 100 also includes an oil filter assembly 2 connected to the free end of the oil collecting assembly 1 and extending upward. The oil filter assembly 2 includes a connecting portion 21 arranged along the side wall 12 and extending upward, and a plurality of channels 22 penetrating the connecting portion 21 are arranged on the connecting portion 21 along the circumference of the connecting portion 21, and the channels 22 can allow oil to pass through. In this arrangement, the oil layer can enter the connecting portion 21 along the channels 22 and move downward into the cavity 13 under the action of gravity.

[0034] In this way, the axial length of the device 100 can be increased, so that the device 100 can be easily installed on the water tank 10, thereby increasing the stability of the device 100. At the same time, the connecting portion 21 can also filter impurities in the oil layer, so that the impurities are located outside the connecting portion 21, thereby preventing the impurities in the oil layer from entering the cavity 13 and clogging the conduit 20.

[0035] In this arrangement, when in use, the device 100 is arranged in the water tank 10 along the through hole 105, and the connecting portion 21 is connected to the cover plate 104, and the opening of the oil collecting assembly 1 is located at the boundary between the oil layer and the water layer. At this time, the oil layer will continue to enter the connecting portion 21 along the channel 22 on the connecting portion 21, and move downward into the cavity 13 under the action of gravity. At the same time, the conduit 20 is arranged in the cavity 13. At this time, the negative pressure mechanism (not shown in the figure) connected to the conduit 20 is started.

[0036] During this process, the negative pressure force generated by the negative pressure mechanism will be transmitted to the cavity 13 along the conduit 20, thereby absorbing the oil in the cavity 13. As the negative pressure mechanism continues to generate negative pressure force, the oil in the cavity 13 will be continuously absorbed. At the same time, the oil layer in the water tank 10 will continue to enter the cavity 13 along the channel 22. Thus, the oil-water separation work of the water tank 10 is completed.

[0037] In one embodiment, Figure 2 As shown, the connecting portion 21 is configured as at least one connecting rod, which is arranged on the side wall 12 and extends upward to form a free end, and the free end of the connecting rod is configured to be connected to the cover plate 104 in an optional manner. In the utility model, two connecting rods are configured. In this way, a channel 22 is formed between the two connecting rods. As a result, the oil can enter the cavity 13 along the channel 22 between the two connecting rods. Under this configuration, the device 100 can be stably connected to the cover plate 104, so as to stably perform oil-water separation work.

[0038] Figure 3 The structure of the second embodiment of the oil filter device 100 for separating oil and water in a water tank according to the utility model is shown. Figure 2 Compared with the oil filter device 100 for separating oil and water in a water tank shown in the figure, the difference is that the connecting portion 21 is woven from a plurality of metal wires.

[0039] The plurality of metal wires are all arranged on the side wall 12 and extend upward to form free ends, and the free ends are configured to be selectively connected to the cover plate 104. At the same time, the plurality of metal wires are interwoven with each other to form a plurality of rhombus-shaped channels 22, and the channels 22 are configured to allow the oil layer to pass through, so that the oil can enter the cavity 13 along the plurality of rhombus-shaped channels 22. In this way, the amount of each channel 22 passing through can be reduced, so that the oil can be further filtered.

[0040] The utility model also provides a structure of a third embodiment of an oil filter device 100 for separating oil from water in a water tank (not shown in the figure), Figure 1 Compared with the oil filter device 100 for separating oil and water in a water tank shown in the figure, the difference is that the connecting portion 21 is configured as a cylindrical structure extending upward along the side wall.

[0041] Among them, on the side wall of the connecting portion 21, a plurality of circular through holes penetrating the side wall of the connecting portion 21 are arranged around the side wall of the connecting portion 21, and the circular through holes are configured to allow the oil layer to pass through. In this way, the plurality of circular through holes can form respective channels 22, and the oil can enter the cavity 13 along the channels 22. In this way, the oil can move along the circular through holes, thereby reducing stress.

[0042] In one embodiment, Figure 2 As shown, the device 100 further includes a fixing portion 3 disposed at the free end of the connecting portion 21, and the fixing portion 3 is used to abut against the cover plate 104, so that the device 100 can be stably disposed on the cover plate 104. Thus, the device 100 can stably perform oil-water separation work.

[0043] In this embodiment, if Figure 2As shown, the fixing portion 3 is arranged along the free end of the connecting portion 21 and extends radially outward to form a flange structure. Specifically, the radial distance formed by the outer contour of the fixing portion 3 is greater than the radial distance of the through hole 105. In this way, when the device 100 is arranged in the water tank 10 along the through hole 105, the fixing portion 3 can abut against the cover plate 104 to prevent the device 100 from continuously moving downward. In this way, the device 100 is stably arranged on the water tank 10 and can stably perform the oil-water separation work.

[0044] In one embodiment, Figure 2 As shown, at least one handle 4 is also provided on the fixing portion 3, and the handle 4 is used to provide a fulcrum for applying a force, so as to facilitate the installation or removal of the device 100. In this embodiment, two handles 4 are provided, and the two handles 4 correspond to each other. In this way, when installing or removing the device 100, a force can be applied to the two handles 4 respectively, so that the force applied to the device 100 can be balanced.

[0045] According to a preferred embodiment of the present invention, Figure 2 As shown, the oil collecting assembly 1 is configured to be any shape that is convenient for collecting oil. In this embodiment, the oil collecting assembly 1 is configured to be a circular cylinder. At the same time, the oil filter assembly 2 is also configured to be a circular cylinder formed along the end of the oil collecting assembly 1. In this configuration, the movement of the oil can be guided.

[0046] The operation of the conveying device 100 for separating an oil-water mixture according to the present invention is as follows.

[0047] First, a force is applied to the handle 4, so that the device 100 is placed in the water tank 10 along the through hole 105, and the fixing part 3 and the cover plate 104 are abutted against each other. Thus, the device 100 is fixed.

[0048] At the same time, the opening of the oil collecting assembly 1 is located at the boundary between the oil layer and the water layer. At this time, the oil layer will continue to enter the connecting part 21 along the channel 22 on the connecting part 21, and move downward into the cavity 13 under the action of gravity. In addition, the conduit 20 is set in the cavity 13. At this time, the negative pressure mechanism (not shown in the figure) connected to the conduit 20 is started.

[0049] During this process, the negative pressure force generated by the negative pressure mechanism will be transmitted to the cavity 13 along the conduit 20, thereby absorbing the oil in the cavity 13. As the negative pressure mechanism continues to generate negative pressure force, the oil in the cavity 13 will be continuously absorbed. At the same time, the oil layer in the water tank 10 will continue to enter the cavity 13 along the channel 22. Thus, the oil-water separation work of the water tank 10 is completed. After the oil-water separation is completed, the conduit 20 can be taken out of the cavity 13, and a force is applied to the handle 4, so that the device 100 is taken out of the water tank 10.

[0050] It is understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims

1. An oil filter device for separating oil from water in a water tank, the water tank (10) comprising a chamber (103) defined by a bottom plate (101), a side plate (102) and a cover plate (104), wherein a through hole (105) communicating with the chamber (103) is provided on the cover plate (104), It is characterized in that The device comprises an oil collecting component (1) extending along the through hole (105) into the chamber (103), and an oil filtering component (2) arranged on the oil collecting component (1) for filtering oil. The oil collecting assembly (1) comprises a bottom wall (11), a side wall (12) arranged on the bottom wall (11) and extending upward, wherein the side wall (12) and the bottom wall (11) together define a cavity (13) for containing oil. The oil filter assembly (2) is provided with a channel (22) for communicating with the cavity (13), and the channel (22) is configured to allow oil to pass therethrough and enter the cavity (13).

2. The oil filter device for separating oil and water in a water tank according to claim 1, characterized in that: The oil filter assembly (2) comprises a connecting portion (21) which is arranged on the side wall (12) of the oil collecting assembly (1) and extends upwards, and the channel (22) is arranged along the circumference of the connecting portion (21) and penetrates the connecting portion (21) to communicate with the cavity (13).

3. The oil filter device for separating oil and water in a water tank according to claim 2, characterized in that: The connecting portion (21) is configured as at least one connecting rod, and the connecting rod is disposed on the side wall (12) and extends upward.

4. The oil filter device for separating oil and water in a water tank according to claim 3, characterized in that: The connecting rods are arranged in two numbers and are distributed on the side wall (12) in an opposite manner, and a channel (22) is formed between the two connecting rods.

5. The oil filter device for separating oil and water in a water tank according to claim 2, characterized in that: The connecting portion (21) comprises a plurality of deformable wires connected to the side wall (12) and extending upwards, wherein the plurality of deformable wires are interwoven with each other to form a plurality of rhombus-shaped channels (22).

6. The oil filter device for separating oil and water in a water tank according to claim 2, characterized in that: The connecting portion (21) is configured as a cylindrical structure extending upwardly along the side wall (12), and a plurality of circular through holes penetrating the wall surface of the connecting portion (21) are configured on the connecting portion (21) along the wall surface of the connecting portion (21), and each of the circular through holes forms a channel (22).

7. The oil filter device for separating oil and water in a water tank according to any one of claims 1 to 6, characterized in that: The device further comprises a fixing portion (3) arranged at the free end of the connecting portion (21) and used for connecting to a cover plate (104) of the water tank (10).

8. The oil filter device for separating oil and water in a water tank according to claim 7, characterized in that: The fixing portion (3) is arranged along the free end of the connecting portion (21) and extends radially outward to form a flange structure.

9. The oil filter device for separating oil and water in a water tank according to claim 7, characterized in that: At least one handle (4) is also provided on the fixing portion (3).

10. The oil filter device for separating oil and water in a water tank according to claim 9, characterized in that: The oil collecting assembly (1) is configured in a circular cylindrical shape, and the oil filtering assembly (2) is configured in a circular cylindrical shape extending upward along a free end of the oil collecting assembly (1) and is used to guide the fluid in the water tank (10).

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