Oil-water separation device

Abstract

The utility model relates to the technical field of oil-water separation, and discloses an oil-water separation device which comprises a base, a supporting frame is arranged on the base, an oil-water separation cup is clamped on the supporting frame, a spiral stirrer is arranged at the top of the supporting frame and corresponds to the axis position of the oil-water separation cup, and the tail end of the spiral stirrer is a super-hydrophobic copper net vertically installed on a stirring shaft. The super-hydrophobic copper nets are symmetrically installed on the stirring shaft, the stirring shaft coincides with the axis of the oil-water separation cup, the oil-water separation cup comprises a separation cup and a containing cup arranged outside the separation cup in a sleeving mode, the super-hydrophobic copper nets are located in the separation cup, and overflow grooves are evenly formed in the side wall of the separation cup. By adopting a centrifugal separation mode, the oil-water separation difficulty can be effectively reduced, and the oil-water separation efficiency can be improved.

Description

Technical Field

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

[0002] The oil-water separator is an instrument that separates oil and water. The oil-water mixture covers a wide range, such as the cleaning of oil tanks and oil storage equipment, industrial water injected in oil extraction, cooling water in petrochemical processing, reaction water, boiler water in the power generation industry, cooling water in the metallurgical industry, and other reasons that cause oil and other impurities in the water to need to be treated. The oil-water separator is an environmentally friendly and energy-saving equipment that saves water resources.

[0003] Oil-water separation is mainly based on the density difference or chemical properties of water and oil, using the principle of gravity sedimentation or other physical and chemical reactions to remove impurities and complete the separation of oil and water. At present, in the field of oil-water separation technology, the methods of oil-water separation are divided into gravity centrifugal, electrical separation, adsorption separation, and flotation separation, etc. Gravity centrifugal oil-water separation is not easy to separate oil and water for oil-water mixtures with a density less than that of water or oil-water mixtures of heavy oil, light oil and water, and this method is not suitable for laboratory analysis equipment and places with a small footprint; electrical separation is often used as the final means of oil-water treatment in oil fields and refineries. When using electrical separation to treat oil-water mixtures with a high water content, electrical breakdown will occur and the necessary electric field strength cannot be established. Therefore, electrical separation cannot be used independently and can only be used as other treatment methods or subsequent processes. Summary of the invention

[0004] The utility model provides an oil-water separation device to solve the technical problem that the oil-water mixture is difficult to separate.

[0005] The technical solution adopted by the utility model is:

[0006] An oil-water separation device comprises a base, a support frame is arranged on the base, an oil-water separation cup is clamped on the support frame, a spiral stirrer is arranged on the top of the support frame corresponding to the axial center position of the oil-water separation cup, the end of the spiral stirrer is a super-hydrophobic copper mesh vertically installed on the stirring shaft, the super-hydrophobic copper mesh is symmetrically installed on the stirring shaft, the oil-water separation cup comprises a separation cup and a containing cup sleeved on the outside of the separation cup, a filtering device is arranged on the inner wall of the separation cup, the super-hydrophobic copper mesh is located in the separation cup, and a plurality of overflow grooves are evenly arranged at the same horizontal position on the side wall of the separation cup.

[0007] Optionally, the height of the upper edge of the overflow groove is not higher than the height of the upper edge of the super-hydrophobic filter, and the bottom wall of the overflow groove gradually moves away from the side wall of the separation cup toward the base.

[0008] Optionally, a drain pipe is provided on the bottom wall of the separation cup and passes through the accommodating cup, a filter assembly is provided at one end of the drain pipe toward the bottom wall of the separation cup, the filter assembly is movably connected to the drain pipe, and a first detection component and a first solenoid valve are provided inside the drain pipe.

[0009] Optionally, the filter assembly includes a coarse filter and a fine filter, the coarse filter and the fine filter are connected by a fixing device, the coarse filter is a mesh structure with uniform mesh size, and the fine filter is a fiber mesh structure with uniform mesh size.

[0010] Optionally, the bottom of the containing cup is a funnel-shaped structure, and an oil drain port is provided at the end of the funnel-shaped structure, and a second detection member and a second solenoid valve are provided inside the oil drain port.

[0011] Optionally, there is a spacing space between the containing cup and the separating cup, and a temperature control device is arranged in the spacing space. A protective cover is arranged outside the temperature control device. The temperature control device includes a heater and a temperature sensor, and the heater is connected to the temperature sensor.

[0012] Optionally, the spiral agitator includes a stirring shaft and a super-hydrophobic copper mesh, the stirring shaft is connected to the second motor drive shaft, and the second motor is arranged on the top of the support frame and is bolted to the support frame.

[0013] Optionally, the support frame includes a support frame body, a threaded shaft, and a clamping frame. The side wall of the support frame body is recessed inward to form an installation space. The threaded shaft is rotatably connected in the installation space, and the threaded shaft is driven to rotate by a first motor located at the top of the support frame body. The clamping frame is provided with a threaded hole, which cooperates with the threaded shaft.

[0014] Optionally, the filtering device includes a metal bracket and non-woven fabric, and a mounting position for the metal bracket to be clamped is provided on the inner wall of the separation cup around the overflow groove, and the metal bracket clamps the non-woven fabric and is clamped with the mounting position on the inner wall of the separation cup.

[0015] The utility model adopts the above technical solution and has the following beneficial technical effects: the utility model drives the super-hydrophobic copper mesh to rotate, and the super-hydrophobic copper mesh contacts the oil-water mixture. Since the super-hydrophobic copper mesh is an oleophilic and hydrophobic material, the oil phase adheres to the super-hydrophobic copper mesh, and the water remains in the separation cup. The super-hydrophobic copper mesh rotates at high speed to generate centrifugal force, so that the oil phase attached to the super-hydrophobic copper mesh flows to the containing cup through the overflow groove under the action of the centrifugal force. The utility model adopts the centrifugal separation method to effectively reduce the difficulty of oil-water separation and improve the efficiency of oil-water separation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 This is a three-dimensional structural schematic diagram of an oil-water separation device of the utility model;

[0018] Figure 2 This is a front view of an oil-water separation device of the utility model;

[0019] Figure 3 This is a cross-sectional view of an oil-water separation device of the utility model;

[0020] Figure 4 The utility model is an oil-water separation device Figure 2 A partial enlarged view of the middle part;

[0021] Figure 5 The utility model is a three-dimensional structural schematic diagram of a separation cup of an oil-water separation device.

[0022] Base; 2. Support frame; 21. Support frame body; 22. Threaded shaft; 23. Clamping frame; 24. Installation space;

[0023] 3. Oil-water separation cup; 31. Separation cup; 32. Receiving cup;

[0024] 4. spiral stirrer; 41. stirring shaft; 42. super hydrophobic copper mesh;

[0025] 5. Drain pipe; 6. Overflow tank; 7. Temperature control device;

[0026] 8. First motor; 9. Second motor; 10. Oil drain port. DETAILED DESCRIPTION

[0027] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present invention and the features in each embodiment may be combined with each other without conflict.

[0029] Reference Figures 1 to 5, an oil-water separation device, comprising a base 1, a support frame 2 is arranged on the base 1, an oil-water separation cup 3 is clamped on the support frame 2, a spiral agitator 4 is arranged on the top of the support frame 2 corresponding to the axial position of the oil-water separation cup 3, the end of the spiral agitator 4 is a super-hydrophobic copper mesh 42 vertically installed on the stirring shaft 41, the super-hydrophobic copper mesh 42 is symmetrically installed on the stirring shaft 41 and the axle center of the stirring shaft 41 coincides with the oil-water separation cup 3, the oil-water separation cup 3 comprises a separation cup 31 and a receiving cup 32 sleeved on the outside of the separation cup 31, a filtering device is arranged on the inner wall of the separation cup 31, the super-hydrophobic copper mesh 42 is located in the separation cup 31, and a plurality of overflow grooves 6 are evenly arranged at the same horizontal position on the side wall of the separation cup 31.

[0030] Furthermore, the height of the upper edge of the overflow groove 6 is not higher than the height of the upper edge of the super-hydrophobic filter, and the bottom wall of the overflow groove 6 gradually moves away from the side wall of the separation cup 31 toward the base 1 .

[0031] By adopting the above technical solution, when using the oil-water separation device in the utility model, the oil-water separation cup 3 is first placed on the support frame 2 to fix the oil-water separation cup 3, and the oil-water mixture is placed in the oil-water separation cup 3, and then the spiral stirrer 4 is started, and the super-hydrophobic copper mesh 42 contacts the oil-water mixture. Since the super-hydrophobic copper mesh 42 is an oleophilic and hydrophobic material, the oil phase adheres to the super-hydrophobic copper mesh 42, and the super-hydrophobic copper mesh 42 has super-hydrophobicity. Water cannot pass through the surface of the super-hydrophobic copper mesh 42, so it will remain in the separation cup 31. The spiral stirrer 4 rotates at a high speed to generate centrifugal force, so that the oil phase attached to the super-hydrophobic copper mesh 42 flows to the receiving cup 32 through the overflow groove 6 under the action of centrifugal force. At the same time, the bottom wall of the overflow groove 6 and the side wall of the separation cup 31 are arranged to have an angle structure, which is also to further facilitate the separated oil to flow to the receiving cup 32 and avoid oil residue in the overflow groove 6.

[0032] In a preferred embodiment, a vibration sensor is provided on the top of the support frame 2 of the oil-water separation device in the utility model. The vibration sensor is used to detect the vibration of the oil-water separation device. When the device vibrates abnormally, the vibration sensor will send an alarm signal to prompt the operator to deal with it in time. The vibration sensor needs to be connected to the control system through a connecting line.

[0033] Furthermore, a drain pipe 5 is provided on the bottom wall of the separation cup 31 and the drain pipe 5 passes through the accommodating cup 32. A filter assembly is provided at one end of the drain pipe 5 toward the bottom wall of the separation cup 31. The filter assembly is movably connected to the drain pipe 5. A first detection component and a first solenoid valve are provided inside the drain pipe 5.

[0034] Furthermore, the filter assembly includes a coarse filter and a fine filter, and the coarse filter and the fine filter are connected by a fixing device. The coarse filter is a mesh structure with uniform mesh size, and the fine filter is a fiber mesh structure with uniform mesh size.

[0035] Furthermore, the bottom of the containing cup 32 is a funnel-shaped structure, and an oil discharge port 10 is disposed at the end of the funnel-shaped structure, and a second detection component and a second solenoid valve are disposed inside the oil discharge port 10 .

[0036] By adopting the above technical solution, referring to Figures 1 to 5 , the water remaining in the separation cup 31 under the action of the spiral agitator 4 is discharged through the drain pipe 5, and the drain pipe 5 is connected to the sewer or wastewater treatment system, so that the wastewater is discharged to the outside through the drain pipe 5, and a filter assembly is arranged inside the drain pipe 5 to filter the solid waste residue to prevent the solid waste residue from accumulating in the drain pipe 5 and causing blockage. The filter assembly is movably connected to the drain pipe 5 to facilitate the cleaning of the solid waste residue precipitated on the filter assembly. A first detection component and a first solenoid valve are arranged inside the drain pipe 5, so that when the separation in the separation cup 31 is insufficient, there is residual oil in the wastewater. When the wastewater is discharged, the first detection component detects the oil and sends an alarm, and transmits the signal to the control system. The control system adjusts the first solenoid valve to close to prevent the oil phase from mixing with the wastewater again and discharging. After the oil-water mixture is re-separated, the first solenoid valve switch is adjusted to continue to discharge the wastewater. The bottom of the receiving cup 32 is set to a funnel-shaped structure. The funnel-shaped bottom helps to concentrate the liquid to the center, so that it is easier to pour out the oil in the cup, reduce the residue in the cup, which is particularly useful for viscous or concentrated liquids, and is not easy to accumulate residues at the bottom of the cup. It is easier to reach every corner of the cup during cleaning, improving the cleaning efficiency. A second detection member and a second solenoid valve are set inside the oil discharge port 10, which have the same effect as the first detection member and the first solenoid valve. When the second detection member detects that there is water in the receiving cup 32, the second solenoid valve is closed.

[0037] The utility model does not specifically limit the structure of the coarse filter. Preferably, the coarse filter is a mesh structure woven from multiple metal wires or plastic wires, and each mesh size is uniform, so that larger solid waste residues can be retained outside the mesh when passing through, and wastewater can pass smoothly.

[0038] The utility model does not specifically limit the structure of the fine filter. Preferably, the fine filter is a fiber mesh structure formed by stacking multiple layers of microporous filter paper or fiber material. The micropore size of the fine filter is small, which can effectively intercept smaller solid waste residues and prevent the solid waste residues from clogging the drain pipe 5.

[0039] The utility model does not specifically limit the connection method of the filter assembly. Preferably, the fixing device in the filter assembly is a bolt, which is used to firmly connect the coarse filter and the fine filter together to ensure that they will not loosen or fall off during operation.

[0040] Furthermore, there is a spacing space between the containing cup 32 and the separating cup 31, and a temperature control device 7 is arranged in the spacing space. A protective cover is arranged outside the temperature control device 7. The temperature control device 7 includes a heater and a temperature sensor, and the heater is connected to the temperature sensor.

[0041] By adopting the above technical solution, the heater is connected to the temperature sensor to detect the temperature in the oil-water separation cup 3 and adjust the heating efficiency of the heater to keep the temperature of the oil-water mixture within a suitable temperature range to prevent the solidification of the oil. A protective cover is provided outside the heater to prevent oil from entering and damaging the heating element.

[0042] The present invention does not specifically limit the material of the heater. Preferably, the heater is an electric heating tube. In other embodiments, the heater may also be a heating resistor.

[0043] The utility model does not specifically limit the installation position of the heater. Preferably, the heater is installed at the bottom of the separation cup 31, the top of the heater is fixed to the bottom wall of the separation cup 31, and the bottom is fixed to the bottom wall of the receiving cup 32. In other embodiments, the heater can also be installed on the side.

[0044] Furthermore, the spiral stirrer 4 includes a stirring shaft 41 and a super-hydrophobic copper mesh 42 , the stirring shaft 41 is connected to the driving shaft of the second motor 9 , and the second motor 9 is disposed on the top of the support frame 2 and is bolted to the support frame 2 .

[0045] Furthermore, the support frame 2 includes a support frame body 21, a threaded shaft 22, and a clamping frame 23. The side wall of the support frame body 21 is recessed inward to form an installation space 24. The threaded shaft 22 is rotatably connected in the installation space 24, and the threaded shaft 22 is driven to rotate by a first motor 8 located at the top of the support frame body 21. The clamping frame 23 is provided with a threaded hole, which cooperates with the threaded shaft 22.

[0046] Furthermore, the filtering device includes a metal bracket and non-woven fabric, and an inner wall of the separation cup 31 is provided with a mounting position for the metal bracket to be clamped around the overflow groove, and the metal bracket clamps the non-woven fabric and is clamped to the inner wall of the separation cup 31.

[0047] By adopting the above technical solution, referring to Figure 1 and Figure 2, start the first motor 8, the driving shaft of the first motor 8 is connected to the threaded shaft 22, so that the threaded shaft 22 rotates, and the clamping frame 23 is slidably connected to the threaded shaft 22, so that the clamping frame 23 moves axially along the threaded shaft 22, so that the distance between the oil-water separation cup 3 and the spiral stirrer 4 can be adjusted according to actual needs, avoiding the operator from continuously adding oil-water mixture to the cup so that the spiral stirrer 4 contacts the liquid surface of the oil-water mixture, reducing the workload of the operator and speeding up the work efficiency. A spring is arranged inside the clamping frame 23, so that the clamping frame 23 can be adjusted according to the diameter of the oil-water separation cup 3, further increasing the operator's choice, avoiding the operator from having to replace the clamping frame 23, reducing the workload of the operator and speeding up the work efficiency. The inner wall of the separation cup 31 is provided with a mounting position for a metal bracket to be clamped around the overflow groove. The metal bracket clamps the non-woven fabric and is clamped with the mounting position of the inner wall of the separation cup 31, so that the device can further enhance the separation effect of the oil-water mixture. The metal bracket is clamped with the inner wall of the separation cup 31 to make the metal bracket detachable, which is convenient for removing and replacing the non-woven fabric on the inner wall of the separation cup 31.

[0048] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0049] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0050] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. An oil-water separation device, comprising a base (1), characterized in that: A support frame (2) is arranged on the base (1), an oil-water separation cup (3) is clamped on the support frame (2), a spiral stirrer (4) is arranged on the top of the support frame (2) at a position corresponding to the axis of the oil-water separation cup (3), the end of the spiral stirrer (4) is a super-hydrophobic copper mesh (42) vertically mounted on a stirring shaft (41), the super-hydrophobic copper mesh (42) is symmetrically mounted on the stirring shaft (41), the oil-water separation cup (3) comprises a separation cup (31) and a receiving cup (32) sleeved on the outside of the separation cup (31), a filtering device is arranged on the inner wall of the separation cup (31), the super-hydrophobic copper mesh (42) is located in the separation cup (31), and a plurality of overflow grooves (6) are evenly arranged at the same horizontal position on the side wall of the separation cup (31).

2. The oil-water separation device according to claim 1, characterized in that: The height of the upper edge of the overflow groove (6) is not higher than the height of the upper edge of the super-hydrophobic copper mesh (42), and the bottom wall of the overflow groove (6) gradually moves away from the side wall of the separation cup (31) in the direction of the base (1).

3. The oil-water separation device according to claim 1, characterized in that: A drain pipe (5) is provided on the bottom wall of the separation cup (31) and the drain pipe (5) passes through the receiving cup (32); a filter assembly is provided at one end of the drain pipe (5) facing the bottom wall of the separation cup (31); the filter assembly is movably connected to the drain pipe (5); and a first detection component and a first solenoid valve are provided inside the drain pipe (5).

4. The oil-water separation device according to claim 3, characterized in that: The filter assembly includes a coarse filter and a fine filter, the coarse filter and the fine filter are connected by a fixing device, the coarse filter is a mesh structure with uniform mesh size, and the fine filter is a fiber mesh structure with uniform mesh size.

5. The oil-water separation device according to claim 1, characterized in that: The bottom of the containing cup (32) is a funnel-shaped structure, and an oil discharge port (10) is provided at the end of the funnel-shaped structure, and a second detection component and a second solenoid valve are provided inside the oil discharge port (10).

6. The oil-water separation device according to claim 1, characterized in that: There is a spacing space between the containing cup (32) and the separating cup (31), and a temperature control device (7) is arranged in the spacing space. The temperature control device (7) is provided with a protective cover on the outside. The temperature control device (7) comprises a heater and a temperature sensor, and the heater is connected to the temperature sensor.

7. The oil-water separation device according to claim 1, characterized in that: The spiral stirrer (4) comprises a stirring shaft (41) and a super-hydrophobic copper mesh (42); the stirring shaft (41) is connected to a drive shaft of a second motor (9); the second motor (9) is disposed on the top of the support frame (2) and is bolted to the support frame (2).

8. The oil-water separation device according to claim 1, characterized in that: The support frame (2) comprises a support frame body (21), a threaded shaft (22), and a clamping frame (23); a side wall of the support frame body (21) is recessed inward to form an installation space (24); the threaded shaft (22) is rotatably connected in the installation space (24), and the threaded shaft (22) is driven to rotate by a first motor (8) located at the top of the support frame body (21); the clamping frame (23) is provided with a threaded hole, and the threaded hole cooperates with the threaded shaft (22).

9. The oil-water separation device according to claim 1, characterized in that: The filtering device comprises a metal bracket and non-woven fabric, the inner wall of the separation cup (31) is provided with a mounting position for the metal bracket to be clamped around the overflow groove, and the metal bracket clamps the non-woven fabric and is clamped with the mounting position on the inner wall of the separation cup (31).

Images