Electrostatic oil cleaning machine with oil-water separation and filtration discharge
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHUANGDI INTELLIGENT EQUIPMENT MANUFACTURING (WUHAN) CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-05-26
AI Technical Summary
Traditional industrial oil purification devices suffer from risks such as high-voltage electrode exposure, complex maintenance, insufficient sealing reliability, secondary oil contamination, and lack of safety interlocking mechanisms, making them difficult to deploy flexibly between dispersed oil tanks.
It adopts a mechanical-electric dual-circuit interlock design, realizes high-voltage power-off through physical displacement, and facilitates the replacement of core components through a modular sealing system. Combined with multi-gradient electric field adsorption topology to eliminate pollutants, it achieves deep purification and safe operation and maintenance.
It achieves efficient oil purification, reduces high-pressure risks, ensures equipment safety and flexibility, and improves equipment reliability and ease of maintenance.
Smart Images

Figure CN224270254U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial oil purification, and in particular to an electrostatic oil purifier with oil-water separation and filtration discharge. Background Technology
[0002] Traditional industrial oil purification has long faced multiple technical bottlenecks: electrostatic adsorption devices generally have the risk of high-voltage electrode exposure, require complex power-off procedures during maintenance and have insufficient sealing reliability, and frequent opening of the cover can easily lead to insulation degradation. Mechanical filtration equipment is difficult to remove submicron-level emulsified water and colloidal contaminants, and the filter element replacement process is often accompanied by secondary oil contamination. More importantly, existing equipment lacks an integrated safety interlock mechanism, and the risk of operators coming into contact with live parts or accidentally opening the cover remains high. The lack of a mobile design further limits the flexible deployment of equipment between dispersed oil tanks.
[0003] Therefore, in order to address the above problems, an electrostatic oil purifier with oil-water separation and filtration is now being developed. Utility Model Content
[0004] In order to overcome the shortcomings of existing devices, this utility model provides an electrostatic oil purifier with oil-water separation and filtration discharge.
[0005] The technical solution of this utility model is: an electrostatic oil purifier with oil-water separation and filtration discharge, including a movable base, a high-voltage installation box mounted on the upper side of the movable base, a control cabinet mounted on the high-voltage installation box, an oil pump mounted on the upper front side of the movable base, a clean oil tank mounted on the top of the high-voltage installation box, a pipeline assembly between the clean oil tank and the oil pump, an end cap mounted on the top of the clean oil tank, a fastening ring between the clean oil tank and the end cap, a pressure ring mounted on the top of the clean oil tank, the pressure ring being located outside the fastening ring, a sliding pull member mounted on the pressure ring, an installation rod mounted on the pressure ring, a fastening rod threadedly connected to the installation rod, and the fastening rod being able to contact the pull member.
[0006] Furthermore, it also includes an installation block, which is installed on the clean oil tank. The installation block is equipped with a limit switch, and a locking block is slidably connected to the limit switch. An installation plate is slidably installed on the top of the limit switch, and the installation plate is connected to the end cover.
[0007] Furthermore, it also includes a collector, which is slidably installed inside the clean oil tank. A fixing plate is provided on the top of the collector, and a fastening screw is threadedly connected to the fixing plate.
[0008] Furthermore, it also includes a high-pressure oil inlet, which is provided on the clean oil tank, and a high-pressure socket is provided on the clean oil tank, which is located next to the high-pressure oil inlet.
[0009] Furthermore, the collector is provided with two handles on top.
[0010] Furthermore, an elastic sheet is provided inside the clean oil tank, and the elastic sheet is in contact with the collector.
[0011] By adopting the above technical solution, the beneficial effects of this utility model are:
[0012] This invention transforms high-voltage power-off action into pure physical displacement through a mechanical-electric dual-circuit interlocking architecture, achieving zero-delay current cutoff upon opening the cover. The modular sealing-carrying system makes core component replacement as simple as replacing a battery, avoiding sealing failure caused by tool disassembly. The multi-gradient electric field adsorption topology simultaneously eliminates free water molecules and polar pollutants, achieving a quantum leap in deep purification and operational safety. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0014] Figure 2 This is a schematic diagram of the first partial cross-sectional three-dimensional structure of this utility model.
[0015] Figure 3 This is a schematic diagram of the second partial cross-sectional three-dimensional structure of this utility model.
[0016] Figure 4 This is a partial three-dimensional structural diagram of the present invention.
[0017] In the attached diagram, the following labels are used: 1-moving base, 2-high-pressure mounting box, 3-control cabinet, 4-oil pump, 5-piping assembly, 6-clean oil tank, 7-end cap, 8-mounting block, 9-limit switch, 10-clamping block, 11-mounting plate, 12-fastening ring, 13-pressure ring, 14-pull component, 15-fastening rod, 16-mounting rod, 17-collector, 18-fixing plate, 19-fixing screw, 20-elastic sheet, 21-high-pressure oil inlet, 22-high-pressure socket. Detailed Implementation
[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0019] An electrostatic oil purifier with oil-water separation and filtration function, such as... Figures 1-4As shown, the system includes a movable base 1, a high-pressure mounting box 2 mounted on the upper side of the movable base 1, a control cabinet 3 mounted on the high-pressure mounting box 2, an oil pump 4 mounted on the upper front side of the movable base 1, a clean oil tank 6 mounted on the top of the high-pressure mounting box 2, a pipeline assembly 5 between the clean oil tank 6 and the oil pump 4, an end cap 7 mounted on the top of the clean oil tank 6, a fastening ring 12 between the clean oil tank 6 and the end cap 7, a pressure ring 13 mounted on the top of the clean oil tank 6, the pressure ring 13 being located outside the fastening ring 12, a sliding pull member 14 mounted on the pressure ring 13, a mounting rod 16 mounted on the pressure ring 13, and a threaded fastening rod 15 connected to the mounting rod 16, the fastening rod 15 being able to engage with the pull member 14. 4. An installation block 8 is installed on the clean oil tank 6. A limit switch 9 is installed on the installation block 8. A locking block 10 is slidably connected to the limit switch 9. An installation plate 11 is slidably installed on the top of the limit switch 9. The installation plate 11 is connected to the end cover 7. A collector 17 is slidably installed inside the clean oil tank 6. The collector 17 has two handles on its top. A fixing plate 18 is installed on the top of the collector 17. A fastening screw is threadedly connected to the fixing plate 18. An elastic sheet 20 is installed inside the clean oil tank 6. The elastic sheet 20 is in contact with the collector 17. A high-pressure oil inlet 21 is installed on the clean oil tank 6. A high-pressure socket 22 is installed on the clean oil tank 6. The high-pressure socket 22 is located next to the high-pressure oil inlet 21.
[0020] It should be noted that the electrostatic oil purifier achieves deep oil purification through the synergy of multiple technologies. Its core mechanism lies in the adsorption effect of the high-voltage electrostatic field and the precise coordination of the mechanical structure. After the equipment is in place and the power connection is completed, the operator starts the oil pump 4 system. The oil to be treated is transported to the inner cavity of the clean oil tank 6 through the pipeline. At this time, the end cap 7 at the top of the clean oil tank 6 achieves double sealing through the clamping ring 13 and the fastening ring 12, ensuring airtightness during high-pressure operation. The sliding pull member 14 on the clamping ring 13 and the threaded fastening rod 15 form an adjustable locking structure. When tightened, the pull member 14 is pushed to lock the end cap 7, and the constraint can be released by rotating it in the opposite direction during maintenance. After the oil enters the tank, the high-pressure system begins to dominate the purification process. A DC voltage of tens of thousands of volts is applied to the surface of collector 17 through the central electrode, forming a non-uniform strong electric field inside the tank. Fine contaminants suspended in the oil (including metal shavings, colloidal particles, and emulsified water) undergo polarization migration under the influence of the electric field. Positively charged particles are directionally adsorbed towards the negatively polarized skeleton of collector 17, while negatively charged impurities are deposited on the tank wall. Water exhibits dielectric migration due to differences in dielectric constants, coalescing into large droplets before settling. As this process continues, the purified oil flows back to the equipment's oil tank through the top channel, forming a closed-loop circulation system. Collector 17, as a core consumable, is designed with integrated functional safety modules. The elastic sheet 20 inside the tank maintains elastic contact with the bottom of collector 17 at all times, ensuring a stable current path. The top handle of collector 17 facilitates extraction, while the fixing plate 18 and fastening screws provide secondary reinforcement. When adsorption saturation requires maintenance, the linkage safety mechanism is immediately activated. The limit switch 9 installed on the tank senses the state of end cover 7 via sliding latch 10. If the mounting plate 11 (rigidly connected to end cover 7) is accidentally lifted, latch 10 slides into the limit groove, physically cutting off the high-voltage circuit and forming a "mechanical-electrical" dual-circuit interlock protection. Maintenance operations must strictly follow the safety procedure: the operator first loosens the clamping ring 13 and fastening rod 15 to release the constraint of end cover 7, then moves the latch 10 of limit switch 9 to the unlocked position, opens end cover 7, and then holds the top handle of collector 17 with both hands to lift it vertically, unscrewing the screws of fixing plate 18. The collector 17 can be replaced with a new one. During installation, ensure that the bottom of the collector 17 fits tightly with the elastic plate 20, and verify the circuit continuity through the high-pressure socket 22 next to the high-pressure oil inlet 21. The overall design takes into account both mobility and stability. The mobile base 1 is equipped with swing casters for easy transportation. During operation, it is locked by the foot brake. The Y-shaped filter in the pipeline assembly 5 intercepts large particles of impurities, and the drain valve regularly discharges the accumulated sewage. The innovation of this system lies in the deep coupling of high-voltage electrostatic field effect and modular mechanical structure: the threaded locking mechanism of the clamping ring 13 realizes precise pressure application and rapid release of the end cover 7; the sliding block 10 design of the limit switch 9 creates a physical power-off path; the elastic contact interface of the collector 17 ensures the reliability of high-voltage conduction.The three subsystems work together to form a closed loop of "electric field adsorption - mechanical protection - human-machine interaction". While efficiently purifying the oil, they minimize the risk of high pressure through multiple passive safety mechanisms, ultimately achieving long-life and reliable operation of industrial lubricating media.
[0021] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An electrostatic oil cleaning machine with oil-water separation and filtration discharge, characterized in that: The system includes a mobile base (1), a high-pressure installation box (2) mounted on the upper side of the mobile base (1), a control cabinet (3) mounted on the high-pressure installation box (2), an oil pump (4) mounted on the upper front side of the mobile base (1), a clean oil tank (6) mounted on the top of the high-pressure installation box (2), a pipeline assembly (5) between the clean oil tank (6) and the oil pump (4), and an end cap (7) mounted on the top of the clean oil tank (6). A fastening ring (12) is provided between the end caps (7), and a pressure ring (13) is provided on the top of the clean oil tank (6). The pressure ring (13) is located outside the fastening ring (12). A pull member (14) is slidably provided on the pressure ring (13). An installation rod (16) is installed on the pressure ring (13). A fastening rod (15) is threadedly connected to the installation rod (16). The fastening rod (15) can contact the pull member (14).
2. The electrostatic oil purifier with oil-water separation and filtration discharge as described in claim 1, characterized in that: It also includes an installation block (8), which is installed on the clean oil tank (6). A limit switch (9) is provided on the installation block (8). A locking block (10) is slidably connected to the limit switch (9). An installation plate (11) is slidably provided on the top of the limit switch (9). The installation plate (11) is connected to the end cover (7).
3. An electrostatic oil purifier with oil-water separation and filtration discharge as described in claim 2, characterized in that: It also includes a collector (17), which is slidably installed inside the clean oil tank (6). A fixing plate (18) is provided on the top of the collector (17), and a fastening screw is threadedly connected to the fixing plate (18).
4. An electrostatic oil purifier with oil-water separation and filtration discharge as described in claim 3, characterized in that: It also includes a high-pressure oil inlet (21), the clean oil tank (6) is provided with the high-pressure oil inlet (21), the clean oil tank (6) is provided with a high-pressure socket (22), the high-pressure socket (22) is located next to the high-pressure oil inlet (21).
5. An electrostatic oil purifier with oil-water separation and filtration discharge as described in claim 3, characterized in that: The collector (17) has two handles on top.
6. An electrostatic oil purifier with oil-water separation and filtration discharge as described in claim 3, characterized in that: The clean oil tank (6) is provided with an elastic sheet (20) inside, and the elastic sheet (20) is in contact with the collector (17).