An oil-water separation device

Abstract

The utility model provides a kind of oil-water separation device, comprising: cavity, magnetic field generating module being arranged in the cavity, protective cover being oppositely arranged with magnetic field generating module and multiple wire bundles being rotationally arranged between magnetic field generating module and protective cover, protective cover is located at the top of cavity, magnetic induction space is formed between magnetic field generating module and protective cover, waste water in water inlet pipe enters magnetic induction space, and drive wire bundle to rotate to cut magnetic induction line.The utility model can improve the efficiency of demulsification and separation of oil and water at the same time, cut magnetic induction line movement using waste water kinetic energy, simplify power device, greatly reduce energy consumption.

Description

Technical Field

[0001] This utility model belongs to the field of oil-water separation technology, specifically, it relates to an oil-water separation device. Background Technology

[0002] Currently, oil-water separation technologies for oilfield emulsified wastewater are mainly divided into physical separation technologies and chemical separation technologies. Physical separation methods separate oil and water through gravity and centrifugation. The effectiveness of oil-water separation depends on the density difference between the two. When the wastewater is severely emulsified, the densities of the two are close, resulting in poor separation. With the large-scale application of chemical flooding and CO2 flooding in oilfield development, the produced water contains a large amount of surfactants, polymers, and alkalis, which reduces the interfacial tension between oil and water and increases the stability of the emulsion. This makes it difficult for oil droplets in the produced water to coalesce and separate, thus worsening the oil-water separation effect. Conventional separation technologies have poor adaptability. Among the publicly available technologies for oil-water separation based on electromagnetic induction, an external power supply is usually used to generate electromagnetic induction to achieve oil-water separation. However, external power supplies require more supporting facilities, are more complex to control, and cause many drawbacks such as increased energy consumption during operation. Utility Model Content

[0003] One objective of this invention is to provide an oil-water separation device that, while improving the efficiency of demulsification and oil-water separation, utilizes the kinetic energy of wastewater to achieve the cutting motion of magnetic field lines, simplifies the power unit, and greatly reduces energy consumption.

[0004] According to this utility model, an oil-water separation device is provided, comprising: a cavity, a magnetic field generating module disposed inside the cavity, a protective cover disposed opposite to the magnetic field generating module, and a plurality of wire bundles rotatably disposed between the magnetic field generating module and the protective cover. The protective cover is disposed on the top of the cavity, and a magnetic induction space is formed between the magnetic field generating module and the protective cover. Wastewater inside the water inlet pipe enters the magnetic induction space and drives the wire bundles to rotate to cut the magnetic field lines.

[0005] In a preferred embodiment, both the magnetic field generating module and the protective cover are constructed in a semi-cylindrical shape, and the magnetic field generating module and the protective cover form a cylindrical magnetic induction space.

[0006] In a preferred embodiment, the method includes: a rotating shaft rotatably disposed within the magnetic induction space, the wire bundle being uniformly arranged along the outer periphery of the rotating shaft, and the first ends of the wire bundle being connected to the rotating shaft.

[0007] In a preferred embodiment, the wire bundle is uniformly arranged along the axial direction of the rotation axis.

[0008] In a preferred embodiment, the protective cover is connected to the cavity to form an accommodating space, and the magnetic field generating module and the protective cover form openings on both sides, and the magnetic induction space and the accommodating space are connected through the openings.

[0009] In a preferred embodiment, the magnetic field generating module is disposed directly below the protective cover, and a water outlet cavity is disposed directly below the magnetic field generating module. A water outlet pipe communicating with the interior of the water outlet cavity is disposed on the side of the water outlet cavity.

[0010] In a preferred embodiment, inclined plates made of hydrophilic and oleophobic materials are respectively provided on both sides of the water outlet cavity, and an oil collection groove is provided above the inclined plates. The inclined plates are inclined from the side wall of the water outlet cavity toward the oil collection groove.

[0011] In a preferred embodiment, a mud guide plate is provided below the inclined plate, the top end of the mud guide plate is fixedly connected to the inner wall of the cavity, and the bottom end extends to the mud discharge pipe.

[0012] In a preferred embodiment, the magnetic field generating module includes a plurality of permanent magnets arranged axially along the rotation axis, and the permanent magnets are neodymium iron boron permanent magnets with multi-layer anti-corrosion surface treatment.

[0013] In a preferred embodiment, the inlet pipe includes: a main pipe with a first end connected to a wastewater source and a plurality of branch pipes connected to a second end of the main pipe, each of the branch pipes being connected to the magnetic induction space.

[0014] This utility model has at least the following technical effects:

[0015] According to this invention, a cavity, a magnetic field generating module disposed inside the cavity, a protective cover disposed opposite to the magnetic field generating module, and multiple wire bundles rotatably disposed between the magnetic field generating module and the protective cover are provided. The protective cover is disposed on the top of the cavity, and a magnetic induction space is formed between the magnetic field generating module and the protective cover. Wastewater from the inlet pipe enters the magnetic induction space and drives the wire bundles to rotate to cut the magnetic field lines. The generated electromagnetic waves target and act on the microscopic particles at the oil-water interface, significantly weakening the strength of the oil-water interface film, destroying the double layer of the oil-water interface and the stability of the emulsion droplets, and improving the efficiency of demulsification and oil-water separation. At the same time, this invention utilizes the kinetic energy of wastewater to achieve the cutting motion of magnetic field lines, eliminating the need for an additional power device and greatly reducing energy consumption. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of an oil-water separation device according to an embodiment of the present invention is shown.

[0017] Figure 2 schematically shown Figure 1 Schematic diagram of the cross-sectional structure at point 1-1;

[0018] Figure 3 schematically shown Figure 1 A schematic diagram of the cross-sectional structure at point 2-2.

[0019] In this application, all the accompanying drawings are schematic drawings, used only to illustrate the principle of the present invention, and are not drawn to scale. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of the utility model, it should be understood that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] like Figures 1 to 3 As shown, the oil-water separation device 100 of this utility model includes: a cavity 9, a magnetic field generating module 1 disposed inside the cavity 9, a protective cover 2 disposed opposite to the magnetic field generating module 1, and multiple wire bundles 3 rotatably disposed between the magnetic field generating module 1 and the protective cover 2. The protective cover 2 covers the top of the cavity 9 and is connected to the cavity 9 to form a closed accommodating space. A magnetic induction space is formed between the magnetic field generating module 1 and the protective cover 2. The multiple wire bundles 3 are rotatably disposed within this magnetic induction space. Wastewater inside the water inlet pipe 4 enters the magnetic induction space and drives the wire bundles 3 to rotate to cut the magnetic field lines.

[0024] The working principle of the oil-water separation device 100 of this utility model is briefly described below. Wastewater enters the magnetic induction space through the inlet pipe 4 and is driven to rotate by the contact wire bundle 3. The wire bundle 3 rotates within the magnetic field generated by the magnetic field generating module 1, cutting magnetic lines of force. The angular velocity can be controlled between 200 rpm and 500 rpm by the flow rate of the water. Within the magnetic field, the wire bundle 3 operates by cutting magnetic lines of force at varying speeds and angles, generating a changing induced current. This changing induced current forms a changing electric field and a changing magnetic field. The changing magnetic field regenerates the changing current, ultimately forming electromagnetic waves. The magnetic and electric fields formed by the electromagnetic waves guide the charged particles in the extracted water, effectively reducing the amount of film at the oil-water interface, compressing the double layer, and increasing surface tension. Furthermore, due to the wave-particle duality and indiscriminate penetration of electromagnetic waves, the microscopic particle structure of the oil-water interface material is altered, effectively reducing the attraction at the oil-water interface. On the other hand, the Lorentz force generated in the magnetic field can also shear the emulsion droplets, disrupt the stability of the emulsion oil, reduce the interfacial tension between oil and water, thereby accelerating the demulsification process and further improving the oil-water separation efficiency.

[0025] According to this utility model, a cavity 9, a magnetic field generating module 1 disposed inside the cavity 9, a protective cover 2 disposed opposite to the magnetic field generating module 1, and multiple wire bundles 3 rotatably disposed between the magnetic field generating module 1 and the protective cover 2 are provided. The protective cover 2 is located at the top of the cavity 9, and a magnetic induction space is formed between the magnetic field generating module 1 and the protective cover 2. Wastewater inside the water inlet pipe 4 enters the magnetic induction space and drives the wire bundles 3 to rotate to cut the magnetic field lines. The generated electromagnetic waves target and act on the microscopic particles at the oil-water interface, significantly weakening the strength of the oil-water interface film, destroying the double electric layer of the oil-water interface and the stability of the emulsion droplets, and improving the efficiency of demulsification and oil-water separation. At the same time, this utility model utilizes the kinetic energy of wastewater to achieve the cutting motion of magnetic field lines, without the need for an additional power device, greatly reducing energy consumption.

[0026] In one or more embodiments, the magnetic field generating module 1 is configured as a semi-cylindrical shape, and the protective cover 2 is configured as a semi-cylindrical shape. The magnetic field generating module 1 and the protective cover 2 form a cylindrical magnetic induction space, and a plurality of wire bundles 3 are rotatably arranged in the cylindrical space formed by the magnetic field generating module 1 and the protective cover 2.

[0027] In one or more embodiments, the inlet pipe 4 includes: a main pipe with a first end connected to a wastewater source and a plurality of branch pipes connected to a second end of the main pipe, each branch pipe being connected to a magnetic induction space.

[0028] In one or more embodiments, the oil-water separation device 100 of this utility model includes: a rotating shaft 31 rotatably disposed within a magnetic induction space; a wire bundle 3 uniformly arranged in a circular pattern along the outer periphery of the rotating shaft 31, and also uniformly arranged along the axial direction of the rotating shaft 31; the first end of each wire bundle 3 is connected to the rotating shaft 31. The rotating shaft is rotated by water flow, and the wire bundle moves by cutting magnetic field lines. The wire bundle 3 is made of copper wire and forms a closed circuit with the water; the rotational angular velocity is adjustable according to the water flow. Optionally, the rotating shaft 31 is rotatably disposed within a support column (not shown) in the magnetic induction space. Optionally, the outer surface of the rotating shaft 31 is provided with multiple support plates extending radially outward along its outer surface, and the wire bundle 3 is arranged on the support plates. The magnetic field generating module 1 includes permanent magnets arranged along the axial direction of multiple rotating shafts 31, with a spacing of 5-10 mm between adjacent permanent magnets.

[0029] In one or more embodiments, the magnetic field generating module 1 and the protective cover 2 are spaced apart on both sides to form an opening, through which the magnetic induction space and the enclosed accommodating space are connected. Oil and water separated by electromagnetic waves inside the magnetic induction space enter the enclosed accommodating space through the opening.

[0030] In one or more embodiments, the magnetic field generating module 1 is disposed directly below the protective cover 2, and a water outlet cavity 6 is disposed directly below the magnetic field generating module 1. A water outlet pipe 61 communicating with the interior of the water outlet cavity 6 is disposed on the side of the water outlet cavity 6.

[0031] In one or more embodiments, inclined plates 7 made of hydrophilic and oleophobic materials are respectively provided on both sides of the water outlet cavity 6, and an oil collection groove 8 is provided above the inclined plates 7. The inclined plates 7 are inclined from the side wall of the water outlet cavity 6 toward the oil collection groove 8. Oil and water separated by electromagnetic waves inside the magnetic induction space enter the closed containment space through the opening. Under the action of gravity, oil droplets gather and float to the oil collection groove 8 via the inclined plates 7, while water enters the water outlet cavity 6 along the inclined plates 7. By setting the inclined plates 7 made of hydrophilic and oleophobic materials to assist the oil droplets to float, oil-water separation is further achieved efficiently.

[0032] In one or more embodiments, a mud guide plate 12 is provided below the inclined plate 7. The top end of the mud guide plate 12 is fixedly connected to the inner wall of the cavity 9, and the bottom end extends to the mud discharge pipe 11. Under the action of gravity, the mud in the wastewater sinks to the inclined plate 7 and moves along the mud guide plate 12 and is discharged through the mud discharge pipe 11.

[0033] In one or more embodiments, the magnetic field generating module 1 employs multiple neodymium iron boron (N52 grade) permanent magnets with a three-layer protective coating of nickel-copper-nickel (Ni-Cu-Ni) (each layer ≥25μm thick) for corrosion protection. These magnets are integrally attached to a semi-cylindrical support, forming a semi-cylindrical magnetic pole. Angle adjustment is achieved by setting a rotating magnetic field generating module support, with the magnetic field lines forming an angle of 0–180° with the conductor. Optionally, a 1mm thick metal shielding layer is wrapped around the magnetic field to reduce magnetic field leakage.

[0034] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An oil-water separation device, characterized in that, include: The room includes a cavity, a magnetic field generating module disposed inside the cavity, a protective cover disposed opposite to the magnetic field generating module, and a plurality of wire bundles rotatably disposed between the magnetic field generating module and the protective cover. The protective cover is disposed on the top of the cavity. A magnetic induction space is formed between the magnetic field generating module and the protective cover. Wastewater inside the water inlet pipe enters the magnetic induction space and drives the wire bundles to rotate to cut the magnetic field lines.

2. The oil-water separation device according to claim 1, characterized in that, Both the magnetic field generating module and the protective cover are constructed in a semi-cylindrical shape, and the magnetic field generating module and the protective cover form a cylindrical magnetic induction space.

3. The oil-water separation device according to claim 2, characterized in that, include: A rotating shaft is rotatably disposed within the magnetic induction space, and the wire bundles are evenly arranged along the outer periphery of the rotating shaft, with the first ends of the wire bundles all connected to the rotating shaft.

4. The oil-water separation device according to claim 3, characterized in that, The wire bundle is uniformly arranged along the axial direction of the rotation axis.

5. The oil-water separation device according to claim 2, characterized in that, The protective cover is connected to the cavity to form an accommodating space. The magnetic field generating module and the protective cover form openings on both sides. The magnetic induction space and the accommodating space are connected through the openings.

6. The oil-water separation device according to claim 5, characterized in that, The magnetic field generating module is located directly below the protective cover, and a water outlet cavity is located directly below the magnetic field generating module. A water outlet pipe communicating with the interior of the water outlet cavity is located on the side of the water outlet cavity.

7. The oil-water separation device according to claim 6, characterized in that, The water outlet cavity is provided with inclined plates made of hydrophilic and oleophobic materials on both sides, and an oil collection groove is provided above the inclined plates. The inclined plates are inclined from the side wall of the water outlet cavity toward the oil collection groove.

8. The oil-water separation device according to claim 7, characterized in that, A mud guide plate is provided below the inclined plate. The top end of the mud guide plate is fixedly connected to the inner wall of the cavity, and the bottom end extends to the mud discharge pipe.

9. The oil-water separation device according to claim 4, characterized in that, The magnetic field generating module includes: a plurality of permanent magnets arranged axially along the rotation axis, and the permanent magnets are neodymium iron boron permanent magnets with multi-layer anti-corrosion treatment on the surface.

10. The oil-water separation device according to claim 1 or 2, characterized in that, The inlet pipe includes: a main pipe with a first end connected to a wastewater source and multiple branch pipes connected to a second end of the main pipe, each of the branch pipes being connected to the magnetic induction space.

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