Oil-water separation device convenient to disassemble

Abstract

The oil-water separation device comprises a lower shell, a sleeve is fixed on the outer side of the lower shell, a sealing gasket is arranged on the inner side of the sleeve, the sealing gasket is tightly attached to the outer side of an upper shell, and an arc-shaped cover plate is arranged on the outer side of the sleeve in a sleeving mode; an annular limiting groove is formed in the outer side of the sleeve, an insertion hole is formed in one side of the arc-shaped cover plate, an arc-shaped limiting plate is connected into the annular limiting groove in an inserted and pulled mode, the side, away from the annular limiting groove, of the arc-shaped limiting plate is located in the insertion hole and provided with a side rod, and a groove plate is arranged on the outer side of the arc-shaped cover plate. The ends of the side rods penetrate through the groove plates, extend outwards and are provided with pull handles, springs are arranged on the outer sides of the side rods, one ends of the springs are connected with the arc-shaped limiting plates, and the other ends of the springs are connected with the inner walls of the groove plates. When the filter medium needs to be replaced, the shell can be conveniently disassembled only by pulling the pull handle to pull the arc-shaped limiting plate out of the annular limiting groove, a large amount of time and effort are not needed to process bolts or damage a welding structure, and the maintenance efficiency of replacement of the filter medium is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to oil and gas separation technical field, concretely relates to an oil and water separation device convenient to dismount. BACKGROUND

[0002] In industrial production and many application scenarios, water is often mixed in oil, and the existence of water seriously affects the performance of oil, reduces the service life of oil, and even can damage equipment, therefore, it is necessary to separate water in oil, and medium filtration is a commonly used method for separating water in oil, which mainly relies on the adsorption performance of filter medium to water to realize the separation of water and oil.

[0003] Many filter media have porous structure and some active groups on the surface, and water molecules can be adsorbed on the surface and pores of the medium by hydrogen bond and other forces, while oil molecules are not easy to be adsorbed due to the difference in chemical structure and properties, so as to achieve the purpose of separating water and oil. However, the filter medium in the separation device will be gradually saturated after long time use, and the adsorption capacity will decrease, so it is necessary to replace the filter medium regularly to ensure the normal operation and separation effect of the separation device.

[0004] The existing oil and water separation device has certain defects in structural design, which leads to inconvenient operation when replacing the internal filter medium. Usually, the upper shell and the lower shell of the separation device are connected in a relatively fixed manner, such as bolt connection, welding, etc. Although this connection method can ensure the sealing and stability of the device to a certain extent, it is tedious to disassemble when the filter medium needs to be replaced, and a lot of time and effort is needed. For example, the bolt connection method needs to unscrew the bolts one by one, and the disassembly process may be more difficult due to rusted bolts, loose threads, etc. The welding method is almost impossible to disassemble without damaging the overall structure of the device, which greatly increases the difficulty of replacing the filter medium.

[0005] In addition, the existing separation device lacks effective positioning and fixing structure during disassembly, which can easily cause the upper shell and the lower shell to be misaligned during separation, increasing the difficulty of disassembly and possibly damaging the internal components of the device. Moreover, after reinstalling the filter medium, it is difficult to ensure the sealing of the device, which can easily cause oil and water leakage, affecting the normal use of the separation device. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing an oil and water separation device convenient to dismount to solve one of the defects in the prior art.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] The oil-water separation device convenient to disassemble comprises:

[0009] The outer side of the lower shell is fixed with a sleeve, the inner side of the sleeve is provided with a sealing gasket, the sealing gasket is tightly attached to the outer side of the upper shell, and the outer side of the sleeve is sleeved with an arc-shaped cover plate.

[0010] An annular limiting groove is formed in the outer side of the sleeve, one side of the arc-shaped cover plate is provided with a insertion hole, the annular limiting groove is connected with an arc-shaped limiting plate through plug-in connection, one side of the arc-shaped limiting plate away from the annular limiting groove is located in the insertion hole and is provided with a side rod, and the outer side of the arc-shaped cover plate is provided with a groove plate.

[0011] The end of the side rod extends outward through the groove plate and is provided with a pull handle, the outer side of the side rod is provided with a spring, one end of the spring is connected with the arc-shaped limiting plate, and the other end is connected with the inner wall of the groove plate.

[0012] Further, the groove plate is hollow and communicates with the annular limiting groove and the insertion hole.

[0013] Two movable holes are symmetrically formed in the groove plate, the side rods are arranged on the opposite sides of the arc-shaped limiting plate, and the ends of the two side rods are connected through the pull handle by penetrating through the movable holes.

[0014] When the lower shell is disassembled, the arc-shaped limiting plate is removed from the annular limiting groove in the sleeve by pulling the pull handle.

[0015] Further, the sleeve has a flat structure.

[0016] Further, the arc-shaped cover plate is provided with two arc-shaped cover plates, and the two arc-shaped cover plates are symmetrically arranged.

[0017] Further, the bottom of the lower shell is provided with a funnel shell, and the bottom of the funnel shell is connected with a water outlet pipe.

[0018] The inner wall of the lower shell is provided with an annular supporting plate, the annular supporting plate is located above the funnel shell, the annular supporting plate is provided with gauze and glass fiber, the glass fiber is arranged above the gauze and located in the lower shell.

[0019] Further, the upper shell is provided with a feeding pipe and an oil outlet pipe, the upper shell is provided with a buffer plate below the feeding pipe, the oil outlet pipe is located below the buffer plate and is axially perpendicular to the feeding pipe.

[0020] Further, one end of the buffer plate away from the inner wall of the upper shell extends to the end of the feeding pipe and is located at one half of the end of the feeding pipe.

[0021] Furthermore, the top of the upper housing is provided with an annular plate, and the annular plate has multiple mounting holes around its circumference.

[0022] Furthermore, the upper and lower housings are axially aligned.

[0023] Furthermore, a sealing strip is also provided on the inner side of the sleeve.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The arc-shaped cover plate fitted on the outside of the sleeve, together with the annular limiting groove on the outside of the sleeve and the arc-shaped limiting plate that is plugged in and plugged in, allows the housing to be easily disassembled when the filter media needs to be replaced. This eliminates the need to spend a lot of time and effort dealing with bolts or damaging the welded structure as in the traditional method, greatly improving the maintenance efficiency of filter media replacement.

[0026] 2. The inside of the slot plate is hollow and connected to the annular limiting groove and the insertion hole. This design makes the movement of the side rod in the slot plate smoother. When the handle is pulled, the side rod can move freely in the slot plate without being obstructed by the slot plate structure, thus ensuring that the arc-shaped limiting plate can be smoothly moved out of the annular limiting groove, improving the convenience of disassembly operation.

[0027] 3. The flat structure increases the sleeve's resistance to bending and deformation in the horizontal direction to a certain extent. When the device is subjected to external forces or vibrations, the flat sleeve can better disperse stress, reduce deformation or damage caused by excessive local stress, and help improve the structural stability of the entire oil-water separation device and extend the service life of the device.

[0028] 4. The symmetrical arrangement of the arc-shaped cover plates helps to better cooperate with the casing and form a tighter seal. The two arc-shaped cover plates cover and fix the casing from both sides, which can reduce the gap between the casing and the outside and prevent oil leakage. At the same time, the symmetrical structure makes the gasket more evenly compressed when under pressure, improving the sealing performance of the gasket and ensuring the sealing of the oil-water separator during operation.

[0029] 5. The combination of gauze and glass fiber forms a multi-layer filtration structure, which can further adsorb and intercept tiny water droplets and impurities to achieve fine filtration. This multi-layer filtration structure greatly improves the oil-water separation effect and can separate purer oil.

[0030] 6. The buffer plate is located inside the upper housing below the feed pipe. When the oil-water mixture enters the device at high speed from the feed pipe, the buffer plate can reduce the impact force.

[0031] 7. The buffer plate can more effectively receive the oil-water mixture flowing in at high speed from the feed pipe. When the oil-water mixture impacts the buffer plate, the long extension length of the buffer plate can more fully disperse the impact force, preventing the oil-water mixture from directly impacting the filter media or other components inside the device, thereby greatly reducing the risk of damage caused by impact. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 A three-dimensional structural diagram of the oil-water separation device that is easy to disassemble, provided by this utility model;

[0034] Figure 2 A schematic diagram of the main structure of the oil-water separator that is easy to disassemble according to this utility model;

[0035] Figure 3 A top view of the easily disassembled oil-water separator provided by this utility model;

[0036] Figure 4 A schematic diagram of the limiting component in the easily disassembled oil-water separator provided by this utility model;

[0037] The components are as follows: 1. Lower shell; 2. Funnel shell; 3. Water outlet pipe; 4. Annular support plate; 5. Gauze; 6. Fiberglass; 7. Upper shell; 8. Limiting assembly; 81. Annular limiting groove; 82. Insertion hole; 83. Groove plate; 84. Arc-shaped limiting plate; 85. Side rod; 86. Spring; 87. Handle; 9. Sleeve; 10. Arc-shaped cover plate; 11. Oil outlet pipe; 12. Buffer plate; 13. Feed pipe; 14. Annular plate; 15. Mounting hole; 16. Valve. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, 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, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] This embodiment provides an oil-water separator that is easy to disassemble. The following is a more detailed description of the present invention with reference to the accompanying drawings:

[0044] like Figures 1-4As shown, an easy-to-disassemble oil-water separator includes: a lower housing 1, on the outside of which a sleeve 9 is fixed, a sealing gasket is provided on the inner side of the sleeve 9, the sealing gasket is tightly attached to the outer side of the upper housing 7, and an arc-shaped cover plate 10 is fitted on the outer side of the sleeve 9; a limiting component 8 is provided on the outer side of the sleeve 9, specifically, an annular limiting groove 81 is opened on the outer side of the sleeve 9, an insertion hole 82 is opened on one side of the arc-shaped cover plate 10, an arc-shaped limiting plate 84 is inserted and pulled into the annular limiting groove 81, the side of the arc-shaped limiting plate 84 away from the annular limiting groove 81 is located in the insertion hole 82, and a side rod 85 is provided; a groove plate 83 is provided on the outer side of the arc-shaped cover plate 10; the end of the side rod 85 extends outward through the groove plate 83 and is provided with a handle 87, and a spring 86 is provided on the outer side of the side rod 85, one end of the spring 86 is connected to the arc-shaped limiting plate 84, and the other end is connected to the inner wall of the groove plate 83. Existing oil-water separators typically use bolted or welded connections for the upper housing 7 and lower housing 1, making disassembly cumbersome when replacing the internal filter media. For example, bolted connections require unscrewing each bolt individually, which can be difficult due to rust or stripped threads; welded connections are almost impossible to disassemble without damaging the structure. The oil-water separator in this technical solution, however, effectively solves this problem through a unique structural design. The arc-shaped cover 10 fitted on the outside of the sleeve 9, along with the annular limiting groove 81 on the outside of the sleeve 9 and the pluggable arc-shaped limiting plate 84, allows for easy removal of the lower housing 1 when the filter media needs to be replaced. This eliminates the need for the time and effort required to deal with bolts or damage the welded structure, significantly improving the maintenance efficiency of filter media replacement. Meanwhile, existing separation devices lack effective positioning and fixing structures during disassembly, which can easily lead to misalignment when the upper housing 7 and lower housing 1 are separated. This misalignment not only increases the difficulty of disassembly but may also damage internal components, such as scratching the filter medium or damaging the sealing structure. This technical solution utilizes the cooperation of the annular limiting groove 81 and the arc-shaped limiting plate 84 to accurately position the upper housing 7 and lower housing 1 during disassembly and installation. The arc-shaped limiting plate 84 is inserted into the annular limiting groove 81, ensuring the accuracy of the position of the upper housing 7 and lower housing 1 during connection and avoiding misalignment. This effectively protects the internal components of the device and extends its service life.Secondly, after reinstalling the filter media, the existing separation device cannot guarantee good sealing performance, and is prone to problems such as oil and water leakage, which will affect the normal use of the separation device and reduce the separation effect. In this technical solution, a sealing gasket is provided on the inner side of the sleeve 9, and the sealing gasket is tightly attached to the outer side of the upper shell 7. This design can form a good seal during device installation. In addition, the tight fit between the arc-shaped limiting plate 84 and the annular limiting groove 81 further enhances the sealing performance of the device. When the arc-shaped limiting plate 84 is inserted into the annular limiting groove 81, the upper shell 7 and the lower shell 1 can be tightly fitted, ensuring that the sealing gasket can play its full role, effectively preventing problems such as oil and water leakage, and ensuring the normal operation and separation effect of the separation device.

[0045] In addition, the spring 86 enables the arc-shaped limiting plate 84 to automatically reset when no external force is applied, ensuring that the device can maintain good positioning and sealing performance after multiple disassemblies and installations. This reliable structural design enables the oil-water separator to be used for a long time, reducing the cost of frequent maintenance and replacement due to structural damage.

[0046] In summary, the operation of this technical solution is simple and easy to understand. Maintenance personnel can disassemble and install the lower housing 1 simply by pulling handle 87, without the need for complex tools or professional skills. This not only reduces the requirements for maintenance personnel but also reduces labor costs. Moreover, due to the ease of operation, maintenance personnel can complete the replacement of the filter media more quickly, reducing downtime caused by maintenance and improving production efficiency.

[0047] Furthermore, the groove plate 83 is hollow inside and communicates with the annular limiting groove 81 and the insertion hole 82. Two movable holes are symmetrically opened on the groove plate 83. The side rods 85 are set on opposite sides of the arc-shaped limiting plate 84. The ends of the two side rods 85 pass through the movable holes and are connected by the handle 87. When disassembling the lower housing 1, the handle 87 is pulled to move the arc-shaped limiting plate 84 out of the annular limiting groove 81 in the sleeve 9.

[0048] In the above structure, the slot plate 83 is hollow inside and connects with the annular limiting groove 81 and the insertion hole 82, which makes the movement of the side rod 85 within the slot plate 83 smoother. When the handle 87 is pulled, the side rod 85 can move freely within the slot plate 83 without being obstructed by the structure of the slot plate 83, thus ensuring that the arc-shaped limiting plate 84 can be smoothly moved out of the annular limiting groove 81, improving the convenience of disassembly. At the same time, the hollow structural design allows the slot plate 83 to make reasonable use of space without affecting the movement of the side rod 85, avoiding the problem of the side rod 85 being obstructed due to the structure being too compact. This design also helps to reduce the overall weight of the device, making the device lighter and easier to install and disassemble.

[0049] Side rods 85 are positioned on opposite sides of the arc-shaped limiting plate 84, making the arc-shaped limiting plate 84 more evenly stressed and enhancing its stability. During disassembly, when the handle 87 is pulled, the side rods 85 on both sides are stressed simultaneously, preventing the arc-shaped limiting plate 84 from tilting or shaking, thus ensuring smooth disassembly. Moreover, the symmetrical side rod structure helps improve the positioning accuracy of the arc-shaped limiting plate 84 in the annular limiting groove 81. During installation, the side rods 85 on both sides can be accurately inserted into the movable hole simultaneously, ensuring a tight fit between the arc-shaped limiting plate 84 and the annular limiting groove 81, guaranteeing the connection accuracy between the upper housing 7 and the lower housing 1, thereby improving the sealing and stability of the device.

[0050] In this embodiment, the sleeve 9 has a flat structure. The flat structure increases the sleeve 9's resistance to bending and deformation in the horizontal direction to a certain extent. When the device is subjected to external force or vibration, the flat sleeve 9 can better disperse stress and reduce deformation or damage caused by excessive local force. This helps to improve the structural stability of the entire oil-water separation device and extend the service life of the device.

[0051] In this embodiment, two arc-shaped cover plates 10 are provided, and the two arc-shaped cover plates 10 are symmetrically arranged, which helps to better cooperate with the sleeve 9 and form a tighter seal. The two arc-shaped cover plates 10 cover and fix the sleeve 9 from both sides, which can reduce the gap between the sleeve 9 and the outside world and prevent oil leakage. At the same time, the symmetrical structure makes the sealing gasket more uniform under pressure, improves the sealing performance of the sealing gasket, and ensures the sealing of the oil-water separator during operation.

[0052] Furthermore, the bottom of the lower shell 1 is provided with a funnel shell 2, the bottom of which is connected to a water outlet pipe 3. The inner wall of the lower shell 1 is provided with an annular support plate 4, which is located above the funnel shell 2. The annular support plate 4 contains gauze 5 and glass fiber 6, which is located above the gauze 5 and inside the lower shell 1.

[0053] In the above structure, a funnel shell 2 is provided at the bottom of the lower shell 1. The shape of the funnel allows the separated water to naturally collect at the bottom and then be smoothly discharged through the outlet pipe 3 connected to the bottom. This avoids the accumulation of oil at the bottom of the lower shell 1, improves the efficiency of oil collection and discharge, and makes the entire oil-water separation process smoother. The inclined inner wall of the funnel shell 2 helps to completely guide the water to the outlet pipe 3, reducing the amount of water remaining in the lower shell 1.

[0054] An annular support plate 4 is located on the inner wall of the lower shell 1 and above the funnel shell 2, providing a stable support and fixing platform for the gauze 5 and glass fiber 6. This ensures that the gauze 5 and glass fiber 6 maintain a certain shape and position, preventing displacement or deformation due to water flow impact during oil-water separation and ensuring the stability of the filtration effect. Furthermore, the combination of gauze 5 and glass fiber 6 forms a multi-layer filtration structure. Gauze 5 typically has larger pores, which can initially filter out larger particulate impurities in the oil-water mixture, acting as coarse filtration. Glass fiber 6, with its finer pores and higher specific surface area, can further adsorb and intercept tiny water droplets and impurities, achieving fine filtration. This multi-layer filtration structure greatly improves the oil-water separation effect, separating a purer oil. Secondly, gauze 5 and glass fiber 6 have different material properties. Gauze 5 is relatively soft, with a certain degree of elasticity and toughness, able to withstand certain water flow impacts without easily breaking. Glass fiber 6 has high strength and chemical stability, maintaining stable filtration performance in different oil-water environments. Combining the two improves the durability and adaptability of the filter media. In addition, the glass fiber 6 is placed above the gauze 5. When the oil-water mixture passes through, it first undergoes preliminary filtration through the gauze 5 and then enters the glass fiber 6 layer. The glass fiber 6 has a stronger adsorption capacity for water droplets and can more effectively separate water droplets from the oil. At the same time, this layered arrangement also helps to extend the service life of the filter media because the gauze 5 can block larger impurities and reduce the clogging and wear of the glass fiber 6.

[0055] In this embodiment, the end of the buffer plate 12 away from the inner wall of the upper housing 7 extends to the end of the feed pipe 13 and is located at halfway to the end of the feed pipe 13. This allows the buffer plate 12 to more effectively receive the oil-water mixture flowing in at high speed from the feed pipe 13. When the oil-water mixture impacts the buffer plate 12, the extended length of the buffer plate 12 can more fully disperse the impact force, preventing the oil-water mixture from directly impacting the filter medium or other components inside the device, thereby greatly reducing the risk of damage caused by the impact. Furthermore, the buffer plate 12 extending to halfway to the end of the feed pipe 13 expands the buffer area, allowing more oil-water mixture to undergo initial deceleration and dispersion under the action of the buffer plate 12. This helps to form a more uniform and stable flow state before the oil-water mixture enters the internal filtration area of ​​the device, creating favorable conditions for subsequent efficient separation.

[0056] In this embodiment, the top of the upper housing 7 is provided with an annular plate 14, and multiple mounting holes 15 are provided around the annular plate 14. The mounting holes 15 can be used to easily connect the feed pipe 13 to the oil pipe that needs to be separated.

[0057] In this embodiment, the upper shell 7 and the lower shell 1 are axially aligned, which helps to optimize the flow path of the oil-water mixture in the device. The oil-water mixture can flow more smoothly along the axial direction, reducing resistance and eddy currents during the flow process, improving the efficiency of oil-water separation, and enabling the oil to pass through the filter medium more quickly, thus achieving a better separation effect.

[0058] In this embodiment, a sealing strip is also provided on the inner side of the sleeve 9, and a valve 16 is installed on the feed pipe 13. The flow rate of oil in the feed pipe 13 can be controlled by the valve 16.

[0059] In a specific application of this embodiment, by connecting the feed pipe 13 to the oil pipe to be separated, the oil can enter the lower housing 1 through the feed pipe 13. The glass fiber 6 filled in the lower housing 1 can adsorb and filter the water. The water can move downward along the glass fiber 6 and then be discharged through the water outlet pipe 3. When the oil accumulates to a certain amount, it will be discharged through the oil outlet pipe 11, thus completing the separation of oil and water. When the glass fiber 6 in the lower housing 1 is replaced, it is only necessary to pull the handle 87 to pull the side wall of the arc-shaped limiting plate 84 out of the annular limiting groove 81, and remove the lower housing 1 from below the upper housing 7, thus replacing the glass fiber 6 in the lower housing 1.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit its protection scope. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that after reading this utility model, they can still make various changes, modifications or equivalent substitutions to the specific implementation of the utility model, but these changes, modifications or equivalent substitutions are all within the protection scope of the pending claims of the utility model.

Claims

1. An oil-water separation device that is easy to disassemble, characterized by, The utility model relates to a kind of oil filter, including: Lower shell (1), sleeve (9) is fixed on its outer side, the inner side of sleeve (9) is equipped with sealing pad, the sealing pad is tightly attached to the outer side of upper shell (7), the outer side of sleeve (9) is equipped with arc cover plate (10); The outer side of sleeve (9) is provided with annular limiting groove (81), one side of arc cover plate (10) is provided with insertion hole (82), arc limiting plate (84) is connected in annular limiting groove (81) by plug-in, one side of arc limiting plate (84) away from annular limiting groove (81) is located in insertion hole (82), and be equipped with side rod (85), the outer side of arc cover plate (10) is equipped with groove plate (83); The end of side rod (85) extends outward through groove plate (83) and is equipped with pull handle (87), the outer side of side rod (85) is equipped with spring (86), one end of spring (86) is connected with arc limiting plate (84), and the other end is connected with the inner wall of groove plate (83).

2. The easily detachable oil-water separation device of claim 1, wherein, The inside of groove plate (83) is hollow, and is communicated with annular limiting groove (81) and insertion hole (82); Two movable holes are symmetrically provided on the groove plate (83), the side rods (85) are arranged on the opposite sides of the arc limiting plate (84), and the ends of the two side rods (85) pass through the movable holes and are connected by the pull handles (87). When disassembling the lower shell (1), pull the pull handle (87) to drive the arc limiting plate (84) to move out of the annular limiting groove (81) in the sleeve (9).

3. The easily detachable oil-water separation device according to claim 1 or 2, characterized in that, The sleeve (9) has a flat structure.

4. The easily detachable oil-water separation device of claim 1, wherein, The arc cover plate (10) is provided with two arc cover plates (10) which are symmetrically arranged.

5. The easily detachable oil-water separation device of claim 1, wherein, The lower shell (1) is provided with a funnel shell (2) at the bottom, and the bottom of the funnel shell (2) is connected with a water outlet pipe (3). The inner wall of the lower shell (1) is provided with an annular support plate (4), the annular support plate (4) is located above the funnel shell (2), the annular support plate (4) is provided with gauze (5) and glass fiber (6), the glass fiber (6) is arranged above the gauze (5) and located in the lower shell (1).

6. The easily detachable oil-water separation device of claim 1, wherein, The upper shell (7) is provided with a feed pipe (13) and an oil outlet pipe (11), the upper shell (7) is provided with a buffer plate (12) below the feed pipe (13), the oil outlet pipe (11) is located below the buffer plate (12) and is axially perpendicular to the feed pipe (13).

7. The easily detachable oil-water separation device of claim 6, wherein, The end of the buffer plate (12) away from the inner wall of the upper shell (7) extends to the end of the feed pipe (13) and is located at one half of the end of the feed pipe (13).

8. The easily detachable oil-water separation device of claim 7, wherein, The upper shell (7) is provided with an annular plate (14) at the top, a plurality of mounting holes (15) are circumferentially provided on the annular plate (14).

9. The easily detachable oil-water separation device of claim 1, wherein, The upper shell (7) and the lower shell (1) are axially coincident.

10. The easily detachable oil-water separation device of claim 1, wherein, The inner side of the sleeve (9) is also provided with a sealing band.

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