An oil-water separation tank facilitating replacement of an oil-water separation membrane

Abstract

The utility model relates to oil -water separation tank technical field provides an oil -water separation tank convenient to replace oil -water separation membrane, including separation tank main part, conveying pipe, intercommunication is arranged in one side of separation tank main part, drainage pipe, the outside of conveying pipe is connected and installed, and its top is connected with quick -operation joint through screw thread, filter piece, the inside of conveying pipe is movably installed, cleaning part, the inside of conveying pipe is movably installed, and its end portion abuts and is arranged on the outer surface of filter piece, sealing cover, the opening in conveying pipe end portion is installed through screw thread connection, wherein, the filter piece is movably connected through quick -operation connecting piece, the utility model discloses through setting filter piece and cleaning part, effectively solved the low problem of filtering efficiency of prior art, also through convenient structure of assembly and replacement, reduced maintenance difficulty, improved the poor problem of prior art maintenance convenience.

Description

Technical Field

[0001] This utility model relates to the field of oil-water separator technology, and in particular to an oil-water separator that facilitates the replacement of the oil-water separation membrane. Background Technology

[0002] In fields such as industrial production, catering services, and environmental protection, the treatment of oily wastewater is a crucial link in ensuring production safety and the ecological environment. As a core treatment device, the oil-water separator's separation efficiency and ease of maintenance directly affect the stability and economy of the overall treatment process.

[0003] However, existing technologies, such as Chinese Publication No. CN222411143U, describe an oil-water separator box for easy replacement of the oil-water separator membrane. This box includes a box body with a lid hinged to the top. The box body has a replacement mechanism inside, and a locking mechanism between the box body and the lid. A filter assembly is located on one side of the box body. By using the replacement mechanism, when the oil-water separator membrane needs to be replaced, the positioning rod at the bottom of the placement frame is moved out of the positioning hole, separating the placement frame from the support frame. Then, the locking block is removed from the slot to facilitate the replacement of the new oil-water separator membrane. The new membrane is placed on top of the placement frame, and the locking block is pressed into the slot. The locking block is magnetically connected to a magnet, ensuring the stability of the oil-water separator membrane during operation. Finally, the placement frame is inserted into the positioning hole on the support frame via the positioning rod to support the installation and fixation of the oil-water separator membrane.

[0004] However, during use, it was found that this device only has a single filter screen with a fixed pore size at the inlet end, lacking an adjustable filtration mechanism. It can only accommodate oily wastewater with specific particle sizes and cannot flexibly adjust the filtration precision based on the impurity content and particle distribution of the liquid. When treating wastewater with high impurity content, the single filter screen is prone to clogging in a short time, leading to a decrease in inlet flow rate, which in turn affects the processing efficiency of the oil-water separation membrane. Furthermore, filter clogging can even cause increased pressure in the inlet pipeline, increasing the risk of equipment leakage. Simultaneously, due to the lack of a targeted, multi-stage filtration design, some fine impurities may penetrate the single filter screen and enter the tank, adhering to the surface of the oil-water separation membrane. This not only shortens the membrane's lifespan but also further reduces the overall separation effect, making it difficult for the treated wastewater to meet discharge standards. Utility Model Content

[0005] The purpose of this invention is to solve the problems of low filtration efficiency and poor maintenance in the existing technology.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an oil-water separator for easy replacement of the oil-water separation membrane, comprising a separator body; a conveying pipe connected to one side of the separator body; a drain pipe connected to the outside of the conveying pipe, with a quick-connect interface threaded to its top; a filter element movably installed inside the conveying pipe; a cleaning element movably installed inside the conveying pipe, with its end abutting against the outer surface of the filter element; and a sealing cap threadedly installed in an opening at the end of the conveying pipe; wherein the filter elements are movably connected to each other via quick-connect fittings.

[0007] The technical effects of adopting the above-mentioned further solution are as follows: the device achieves graded filtration through nested filter elements with progressively smaller pores, thereby improving the oil-water separation efficiency of the device; the filter elements are easily disassembled and assembled with quick-connect parts and threaded structures, and the cleaning parts automatically clean the filter cartridge, greatly improving the ease of maintenance and solving the problems of low efficiency and difficult maintenance in the prior art.

[0008] In a preferred embodiment, the filter element includes: a first filter cartridge, movably installed inside the conveying pipe, with a certain gap between its outer end face and the inner end face of the conveying pipe; and a second filter cartridge, movably installed inside the first filter cartridge; wherein, both the first and second filter cartridges have multiple sets of filter holes that are provided through the outside, and the filter holes on the filter cartridges decrease in size sequentially from the outside to the inside.

[0009] The technical effect of adopting the above-mentioned further solution is that this design can first intercept large impurities and then retain small impurities, thus achieving graded filtration.

[0010] In a preferred embodiment, the quick connector includes: positioning grooves evenly formed on the inner walls of the first filter cartridge and the second filter cartridge; positioning blocks, in multiple sets, riveted to the outer walls of the first filter cartridge and the second filter cartridge, and the positioning blocks being made of an elastic material; wherein the positioning blocks cooperate with the positioning grooves.

[0011] The technical effect of adopting the above-mentioned further solution is that the positioning groove on the inner wall of the filter cartridge and the elastic positioning block riveted to the outer wall cooperate with each other. During installation, the filter cartridge can be connected by simply aligning and embedding it. During disassembly, it can be separated with a little force. No complicated tools are required, which realizes quick assembly and disassembly of the filter cartridge, greatly simplifies the assembly and replacement process of filter components, and improves the convenience of maintenance.

[0012] In a preferred embodiment, the cleaning component includes: two sets of rotating frames installed at the left and right ends of the first filter cartridge; and a mounting frame rotatably installed on the inner side of the two rotating frames; wherein the rotating frames are connected to the first filter cartridge via the mounting frame.

[0013] The technical effect of adopting the above-mentioned further solution is that it allows the rotating frame to rotate around the first filter cartridge, laying the foundation for the subsequent cleaning of the filter cartridge by driving the cleaning components, reducing the accumulation of impurities in the filter cartridge, and ensuring smooth filtration.

[0014] In a preferred embodiment, the cleaning component further includes: multiple guide vanes evenly installed between the two rotating frames; and a rotating shaft riveted to the middle of the guide vanes; wherein the axial direction of the rotating shaft is consistent with the axial direction of the first filter cartridge.

[0015] The technical effect of adopting the above-mentioned further solution is that the flow of the mixture impacts the guide vanes, which can drive the rotating frame to rotate, and the rotating shaft can adjust the angle of the guide vanes.

[0016] In a preferred embodiment, the cleaning component further includes a cleaning brush riveted between the two rotating frames; wherein the end of the cleaning brush abuts against the outer surface of the first filter cartridge.

[0017] The technical effect of adopting the above-mentioned further solution is that when the rotating frame rotates, the cleaning brush simultaneously wipes the surface of the filter cartridge, which can remove attached impurities in time and avoid clogging of the filter holes.

[0018] In a preferred embodiment, the filter element further includes a connecting pipe with external threads on its exterior; wherein one end of the connecting pipe is connected to the conveying pipe via the external threads.

[0019] The technical advantage of adopting the above-mentioned further solution is that the connecting pipe of the filter element has external threads, and one end is connected to the conveying pipe through the external threads. This design allows the filter element to be stably assembled in the conveying pipe, ensuring structural stability during filtration; disassembly only requires twisting the connecting pipe to separate it, without complicated operations, simplifying the installation and replacement process of the filter element.

[0020] In a preferred embodiment, the oil-water separator that facilitates the replacement of the oil-water separator membrane further includes a limiting block, which is movably installed at the other end of the connecting pipe; wherein the limiting block is connected to the connecting pipe via an external thread.

[0021] The technical effect of adopting the above-mentioned further solution is that during installation, one end of the connecting pipe is passed through the inner wall of the separation box body and then fixed with a limiting block, which can firmly fix the connecting pipe and the filter element, ensuring structural stability during filtration. When disassembling, the connecting pipe can be removed by unscrewing the limiting block.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. This utility model optimizes the filter element structure to construct a highly efficient graded filtration system, significantly improving filtration efficiency. Specifically, it includes a nested first filter cartridge and a second filter cartridge, with multiple sets of filter holes on the outer wall of the filter cartridges arranged in a gradually decreasing diameter pattern from the outer first filter cartridge to the inner second filter cartridge. This design ensures that when the oil-water mixture flows through the filter element, it first passes through the large-diameter filter holes of the first filter cartridge, quickly intercepting larger particles and preventing them from clogging the small-diameter filter layer in subsequent filtration stages. Subsequently, the pre-filtered mixture passes through the small-diameter filter holes of the second filter cartridge, further trapping finer impurities. This achieves a graded filtration effect of "coarse filtration followed by fine filtration," reducing the probability of filter clogging while maintaining a stable filtration rate over a long period, significantly improving overall oil-water separation efficiency.

[0023] 2. This utility model significantly improves the ease of maintenance of the device through multiple convenient structural designs. For filter assembly and replacement, the device employs a combination of quick-connect components and threaded connections: the first and second filter cartridges are quickly connected via positioning grooves and elastic positioning blocks. Workers simply need to align the positioning blocks with the positioning grooves to complete assembly; disassembly is easy with minimal force, requiring no complex tools. Simultaneously, the filter cartridges are connected to the conveying pipe via the external threads of the connecting pipe. With the fixing effect of the limiting block, disassembly only requires unscrewing the limiting block and unscrewing the connecting pipe to remove the entire filter assembly from the conveying pipe, making operation simple and efficient. Furthermore, the device's sealing cap is screwed onto the opening at the end of the conveying pipe. Opening it requires no disassembly of other parts; simply unscrewing the sealing cap allows direct inspection or maintenance of the filter and cleaning components inside the conveying pipe. In addition, the automatic cleaning function of the cleaning components indirectly reduces maintenance frequency. The cleaning brush rotates synchronously with the rotating frame driven by the guide vanes, continuously cleaning impurities from the outer surface of the first filter cartridge, reducing the number of times the filter cartridge needs to be manually disassembled and cleaned. Attached Figure Description

[0024] Figure 1 A three-dimensional structural diagram of an oil-water separator that facilitates the replacement of the oil-water separation membrane, provided by this utility model; Figure 2 An enlarged structural diagram of the filter element of an oil-water separator box that facilitates the replacement of the oil-water separation membrane, provided by this utility model; Figure 3 A schematic diagram of the internal cross-sectional structure of the filter element of an oil-water separator box that facilitates the replacement of the oil-water separation membrane, provided by this utility model. Figure 4 A partial exploded view of an oil-water separator for easy replacement of the oil-water separation membrane, provided by this utility model; Figure 5 This is an enlarged structural diagram of the cleaning component of an oil-water separator that facilitates the replacement of the oil-water separator membrane, as provided by this utility model.

[0025] Legend: 1. Separation box body; 2. Conveying pipe; 3. Sealing cover; 4. Drain pipe; 5. Quick connector; 6. Rotating shaft; 7. First filter cartridge; 8. Second filter cartridge; 9. Rotating frame; 10. Guide vane; 11. Cleaning brush; 12. Connecting pipe; 13. Limiting block; 14. Positioning groove; 15. Positioning block; 16. Mounting bracket; 17. External thread. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Example 1: Please see Figures 1-5 This embodiment provides an oil-water separator with multiple filtration effects and an easily replaceable oil-water membrane. The specific concept is as follows: An oil-water separator with an easy-to-replace oil-water membrane includes a separator body 1. The oil-water separator also includes a delivery pipe 2, a drain pipe 4, a quick connector 5, a filter element, and a sealing cap 3.

[0028] The conveying pipe 2 is installed in a continuous manner and fixed on one side of the main body 1 of the separation box to provide a conveying channel for the oil-water mixture to be separated.

[0029] In addition, the drainage tube 4 is installed outside the delivery tube 2, and its top is connected to the quick interface 5 by means of a threaded structure.

[0030] It should be noted that the quick interface 5 can be flexibly connected to external pipelines to guide the oil-water mixture.

[0031] The sealing cap 3 is installed at the pre-set opening at the end of the conveying pipe 2 by means of threaded engagement, which serves to seal the internal space of the conveying pipe 2, and at the same time facilitates subsequent opening to operate the internal components.

[0032] Meanwhile, the filter element, as a key component for achieving oil-water separation, is movably installed inside the delivery pipe 2.

[0033] It should be noted that different filter elements are flexibly connected through quick-connect fittings, allowing staff to select filter elements of different specifications and sizes to assemble into the delivery pipe 2 according to actual oil-water separation needs.

[0034] As examples, in this embodiment, the filter element includes: a first filter cartridge 7, a second filter cartridge 8, a connecting pipe 12, an external thread 17, a limiting block 13, and a quick connector.

[0035] The first filter cartridge 7 is movably placed inside the delivery pipe 2.

[0036] It should be noted that a certain gap is maintained between the outer end face of the first filter cartridge 7 and the inner end face of the conveying pipe 2.

[0037] The second filter cartridge 8 is movably installed inside the first filter cartridge 7, forming a double-layer filtration structure.

[0038] In addition, multiple sets of filter holes are opened through the exterior of both the first filter cartridge 7 and the second filter cartridge 8.

[0039] It should be noted that from the outer first filter cartridge 7 to the inner second filter cartridge 8, the pore size on the filter cartridges decreases sequentially. This gradual pore design enables graded filtration of oil-water mixtures, first filtering out larger particles of impurities, and then filtering out smaller impurities, thereby improving the separation effect.

[0040] The connecting pipe 12 has an external thread 17.

[0041] It should be noted that one end of the connecting pipe 12 is connected to the conveying pipe 2 via an external thread 17, providing support for the stable assembly of the filter element and the conveying pipe 2.

[0042] In addition, the limiting block 13 is movably installed at the other end of the connecting pipe 12.

[0043] It should be noted that during the actual installation process, one end of the connecting pipe 12 is first passed through the inner wall of the separation box body 1. Then, the connecting pipe 12 is firmly fixed to the separation box body 1 by using the matching of the limiting block 13 and the connecting pipe 12 through the external thread 17, thereby ensuring the stable installation of the entire filter assembly inside the separation box body 1.

[0044] The quick connector consists of a positioning groove 14 and a positioning block 15.

[0045] The positioning grooves 14 are evenly distributed on the inner walls of the first filter cylinder 7 and the second filter cylinder 8.

[0046] It should be noted that there are multiple sets of positioning blocks 15, which are fixed to the outer walls of the first filter cylinder 7 and the second filter cylinder 8 by riveting.

[0047] It should be noted that the positioning block 15 is made of elastic material.

[0048] In this embodiment, when it is necessary to assemble the first filter cartridge 7 and the second filter cartridge 8, simply align the positioning block 15 on the corresponding filter cartridge with the positioning groove 14 on the other filter cartridge and insert it. The elastic positioning block 15 will fit tightly in the positioning groove 14, realizing a quick connection between the filter cartridges and facilitating subsequent disassembly and replacement of the filter cartridges. Through the connection and cooperation of the above-mentioned components, flexible assembly and replacement of the filter elements are achieved. The staged filtration structure improves the efficiency and accuracy of oil-water separation, and the stable connection method ensures the reliable operation of the separation process, meeting the needs of oil-water separation under different working conditions.

[0049] Example 2: like Figures 1-5 As shown in Example 1, this example provides an oil-water separator with anti-clogging effect and easy-to-replace oil-water separator membrane. The specific idea is as follows: The oil-water separator that facilitates the replacement of the oil-water separator membrane also includes a cleaning component.

[0050] The cleaning component is movably installed inside the delivery pipe 2, with its end abutting against the outer surface of the filter element. It is used to clean the surface of the filter element and prevent impurities from clogging the filter holes.

[0051] As examples, in this embodiment, the cleaning component comprises a rotating frame 9, a mounting frame 16, a guide vane 10, a rotating shaft 6, and a cleaning brush 11.

[0052] The rotating frame 9 is provided in two sets, which are respectively installed at the left and right ends of the first filter cartridge 7 in the filter element, providing a mounting carrier for other components of the cleaning element.

[0053] In addition, the mounting bracket 16 is mounted on the inside of the two rotating brackets 9 by means of a rotatable connection.

[0054] It should be noted that the rotating frame 9 is connected to the first filter cylinder 7 via the mounting bracket 16, so that the rotating frame 9 can rotate around the first filter cylinder 7.

[0055] Meanwhile, multiple guide vanes 10 are provided, evenly distributed and installed between the two rotating frames 9.

[0056] It should be noted that when the oil-water mixture flows in the delivery pipe 2, it will impact the guide vanes 10, thereby causing the rotating frame 9 to rotate around the first filter cylinder 7.

[0057] The rotating shaft 6 is connected to the middle of the guide vane 10 by riveting.

[0058] It should be noted that the axis of the rotating shaft 6 is aligned with the axis of the first filter cartridge 7, allowing adjustment of the guide angle of the guide vane 10.

[0059] In addition, the cleaning brush 11 is also riveted between the two rotating frames 9, and its end abuts against the outer surface of the first filter cartridge 7.

[0060] It should be noted that when the rotating frame 9 rotates under the drive of the guide vane 10, the cleaning brush 11 will rotate synchronously around the first filter cartridge 7 to clean the impurities attached to the outer surface of the first filter cartridge 7.

[0061] In this embodiment, the flow force of the oil-water mixture itself drives the cleaning brush 11 to automatically clean the surface of the first filter cartridge 7, effectively preventing filter hole clogging, ensuring the continuous and efficient operation of the filter element, reducing the frequency of manual cleaning and maintenance, extending the service life of the equipment, and ensuring the stable and efficient oil-water separation process.

[0062] Working Principle: This equipment is an oil-water separator that facilitates membrane replacement. Before use, preparation is required. Based on the impurities in the oil-water mixture to be separated, select appropriate filter elements, including a first filter cartridge 7, a second filter cartridge 8, and a connecting pipe 12. When assembling the filter elements, align the positioning block 15 on the outer wall of the second filter cartridge 8 with the positioning groove 14 on the inner wall of the first filter cartridge 7, and insert it. The elastic positioning block 15 fits into the positioning groove 14 to complete the quick connection. Next, thread one end of the connecting pipe 12 with the external thread 17 to the conveying pipe 2. Then, pass the other end of the connecting pipe 12 through the inner wall of the separator body 1, and use a limiting block 13 to fix the connecting pipe 12 via the external thread 17, ensuring the filter elements are stably installed inside the conveying pipe 2. Finally, screw the sealing cap 3 onto the opening at the end of the conveying pipe 2 to seal it.

[0063] The equipment is then connected and operated. The quick-connect interface 5 at the top of the guide pipe 4 connects to an external oil-water pipeline, allowing the oil-water mixture to be separated to enter the delivery pipe 2 via the guide pipe 4. As the mixture flows, it impacts the guide vanes 10 of the cleaning component, causing the rotating frame 9 to rotate around the first filter cartridge 7. The cleaning brush 11, riveted to the rotating frame 9, rotates synchronously, its end contacting the outer surface of the first filter cartridge 7 to clean impurities and prevent filter pore blockage. Simultaneously, the mixture passes sequentially through the first filter cartridge 7 and the second filter cartridge 8, utilizing the decreasing size of the filter pores in both to achieve staged filtration. The separated oil and water are discharged through their respective channels.

[0064] When the filter element needs to be replaced or maintenance is required, first close the external pipeline valve to stop the feed, unscrew the sealing cap 3, loosen the limit block 13, separate the connecting pipe 12 from the conveying pipe 2, and remove the filter element. If the filter cartridge needs to be replaced, directly separate the first filter cartridge 7 and the second filter cartridge 8, replace the new filter cartridge, and reassemble it according to the original steps. After completion, the equipment can be restarted for oil-water separation operation.

[0065] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0066] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. An oil-water separator with an easily replaceable oil-water membrane, comprising a separator body (1), characterized in that, The oil-water separator that facilitates membrane replacement also includes: A conveying pipe (2) is connected to one side of the main body (1) of the separation box; The drainage tube (4) is connected to the outside of the delivery tube (2), and its top is connected to a quick connector (5) by a thread. The filter element is movably installed inside the delivery pipe (2); The cleaning component is movably installed inside the delivery pipe (2), and its end is abutted against the outer surface of the filter element; The sealing cap (3) is installed in the opening at the end of the conveying pipe (2) by a threaded connection; The filter elements are movably connected by quick-connect fittings.

2. The oil-water separator tank with easy-to-replace oil-water separation membrane according to claim 1, characterized in that, The filter element includes: The first filter cartridge (7) is movably installed inside the conveying pipe (2), and there is a certain gap between its outer end face and the inner end face of the conveying pipe (2); The second filter cartridge (8) is movably installed inside the first filter cartridge (7); The first filter cartridge (7) and the second filter cartridge (8) are provided with multiple sets of filter holes on their exteriors, and the filter holes on the filter cartridges decrease in size from the outside to the inside.

3. The oil-water separator tank with easy-to-replace oil-water separation membrane according to claim 1, characterized in that, The quick-connect component includes: Positioning grooves (14) are evenly distributed on the inner walls of the first filter cylinder (7) and the second filter cylinder (8); The positioning block (15) is provided in multiple sets and is riveted to the outer wall of the first filter cylinder (7) and the second filter cylinder (8), and the positioning block (15) is made of elastic material; The positioning block (15) and the positioning groove (14) cooperate with each other.

4. The oil-water separator tank with easy-to-replace oil-water separation membrane according to claim 1, characterized in that, The cleaning component includes: Two sets of rotating frames (9) are provided and installed at the left and right ends of the first filter cylinder (7); Mounting bracket (16) is rotatably mounted on the inside of the two rotating brackets (9); The rotating frame (9) is connected to the first filter cartridge (7) via a mounting frame (16).

5. The oil-water separator tank with easy-to-replace oil-water separation membrane according to claim 4, characterized in that, The cleaning component also includes: Multiple guide vanes (10) are provided and are evenly installed between the two rotating frames (9); The rotating shaft (6) is riveted to the middle of the guide vane (10); The axial direction of the rotating shaft (6) is consistent with the axial direction of the first filter cartridge (7).

6. The oil-water separator tank with easy-to-replace oil-water separation membrane according to claim 5, characterized in that, The cleaning component also includes: A cleaning brush (11) is riveted between the two rotating frames (9); The end of the cleaning brush (11) is disposed in contact with the outer surface of the first filter cartridge (7).

7. The oil-water separator tank with an easily replaceable oil-water separation membrane according to claim 2, characterized in that, The filter element also includes: The connecting pipe (12) has an external thread (17) on its outside. One end of the connecting pipe (12) is connected to the conveying pipe (2) via an external thread (17).

8. The oil-water separator tank with easy-to-replace oil-water separation membrane according to claim 7, characterized in that, The oil-water separator that facilitates membrane replacement also includes: The limiting block (13) is movably installed at the other end of the connecting pipe (12); The limiting block (13) is connected to the connecting pipe (12) via an external thread (17).

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