Multifunctional oil filter

Abstract

The utility model belongs to the field of industrial production and equipment operation and maintenance, concretely relates to a multifunctional oil filter, the multifunctional oil filter includes machine body, power supply system, intelligent control system, oil supply system, filter system, detection system, equipment protection alarm system, inlet and outlet oil pipe and inlet and outlet interface, compared with prior art, the multifunctional oil filter breaks through the single function limitation, realizes detection and filter closed loop control, improves detection precision and equipment portability, expands the use scene, enhances the failure processing capacity, and each filter unit filter core is detachable, is convenient for maintaining, effectively solves the oil liquid processing and quality control problem.

Description

Technical Field

[0001] This utility model belongs to the field of industrial production and equipment operation and maintenance, and specifically relates to a multi-functional oil filter. Background Technology

[0002] In industrial production and equipment maintenance, oil serves as a crucial lubricating and transmission medium for various types of machinery. Its cleanliness, water content, and acid value directly affect the operational stability and service life of the equipment. Oil filters, as key equipment for ensuring oil quality, are widely used in various industries such as power, machinery manufacturing, and transportation. However, existing oil filters generally suffer from problems such as limited functionality, low levels of intelligence, and restricted application scenarios.

[0003] Limitation 1:

[0004] Traditional oil filters typically only have a single impurity filtration function, which cannot meet the treatment needs of different types of oil contamination. For example, when the oil contains water or acidic substances, traditional oil filters struggle to purify it effectively, leading to accelerated wear and frequent malfunctions due to the use of inferior oil. Furthermore, while some oil filters may have multiple filtration modules, the lack of effective inter-module control prevents them from flexibly adjusting the filtration process according to the actual contamination level of the oil, resulting in low filtration efficiency, poor functional adaptability, and unsatisfactory treatment effects.

[0005] Limitation 2:

[0006] In terms of intelligent operation, most traditional oil filters rely on manual operation and monitoring, making it impossible to collect key data such as oil contamination and water content in real time, thus hindering precise filtration control. Operators need to take samples regularly for testing, which is not only time-consuming and labor-intensive but also suffers from data lag, preventing timely detection and handling of oil quality issues. Moreover, traditional oil filters are inadequate in terms of equipment protection, lacking a comprehensive fault monitoring and alarm system. When abnormal oil pressure, filter blockage, or electrical safety hazards occur, they cannot respond quickly, easily leading to equipment damage or even safety accidents.

[0007] Limitation 3: Limited scenarios for oil quality monitoring

[0008] In terms of application scenarios, the fixed installation mode of traditional oil filters limits their application scope and makes it difficult to meet the needs of mobile scenarios such as field operations and multi-equipment inspections. Furthermore, their inlet and outlet interface designs are unreasonable, making connection with external equipment inconvenient and unable to achieve rapid online circulation filtration or offline oil treatment, resulting in poor flexibility and versatility. In addition, the maintenance of traditional oil filters is also cumbersome; the filter element replacement process is complex, requiring specialized tools and considerable time, increasing maintenance costs and downtime.

[0009] Therefore, there is an urgent need to develop a multifunctional oil filter that can integrate multiple filtration functions, achieve intelligent control, have a wide range of applications, and be easy to maintain, in order to meet the diverse needs of modern industry for oil treatment. Utility Model Content

[0010] To address the aforementioned shortcomings, this utility model provides a multifunctional oil filter.

[0011] This utility model provides the following technical solution:

[0012] This utility model provides a multifunctional oil filter, which includes a body, a power supply system, an intelligent control system, an oil supply system, a filtration system, a detection system, an equipment protection alarm system, inlet and outlet oil pipes, and inlet and outlet interfaces.

[0013] The filtration system includes: a coarse filter, an impurity filter, a water removal filter, and an acid removal filter;

[0014] The detection module includes: a contamination sensor and a moisture sensor;

[0015] The equipment protection alarm system includes: an audible and visual alarm, a pressure sensor, a differential pressure transmitter, and a leakage current protector.

[0016] Furthermore, the outlet end of the coarse filter is connected to the inlet end of the variable frequency oil pump; the inlet end of the impurity filter is connected to the outlet end of the variable frequency oil pump via an electric three-way valve A; the water removal filter and the acid removal filter are connected to the impurity filter via electric three-way valves B and C.

[0017] Furthermore, the electric three-way valves A, B, and C are electrically connected to the intelligent control system to achieve a single filtration mode or a multi-stage filtration mode.

[0018] Furthermore, the intelligent control system is electrically connected to the power supply system, oil supply system, filtration system, detection system, and equipment protection alarm system, respectively, and is used to control the operation of the oil filter and collect detection data.

[0019] Furthermore, the impurity filter is connected to a differential pressure transmitter and a contamination sensor; the water removal filter and the deacidification filter are connected to pressure sensors and are in communication with a moisture sensor.

[0020] Furthermore, the power supply system includes: a power source, a leakage current protection switch, a power switch, a cable, and an emergency stop switch;

[0021] Furthermore, the intelligent control system includes: a PLC, an embedded configuration unit, a power indicator light, a running indicator light, and a flow meter;

[0022] Furthermore, the oil supply system includes: a frequency converter, a motor, and a frequency converter oil pump;

[0023] Furthermore, the bottom of the machine body is provided with movable rollers, and both the bottom and top of the machine body are provided with fixing rings.

[0024] Furthermore, the inlet / outlet interface is a quick-connect interface, which can be quickly connected to the oil drain or oil filler port of an external device via inlet / outlet oil pipes.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. By integrating a coarse filter, impurity filter, water removal filter, and deacidification filter, and using an electric three-way valve to switch oil circuits, it can combine multiple filtration modes such as "impurity filtration → water removal → deacidification" as needed, or activate specific filtration units individually (such as removing only impurities), breaking through the limitations of traditional oil filters with single functions, meeting the treatment needs of different types of oil contamination, and greatly improving treatment efficiency.

[0027] 2. The intelligent control system deeply integrates with each filtration unit and detection module through PLC, collects data such as oil contamination degree and water content in real time, and dynamically adjusts the filtration process (such as automatically increasing the number of fine filtrations when the contamination degree exceeds the standard, and strengthening the water removal process when the water content is high), realizing closed-loop control of "detection-filtration-re-detection", which significantly improves the oil treatment compliance rate.

[0028] 3. Through structural improvements to the inlet and outlet oil pipes and quick interfaces, the equipment can be flexibly connected to the equipment's oil circuit to achieve online circulation filtration, or it can be separated from the main system to independently complete offline oil treatment, breaking through the traditional equipment's single function and expanding the application scenarios of a single unit.

[0029] It can be used directly as a fuel dispenser without passing through various fine filters, thanks to the oil circuit control, thus enabling emergency refueling in the field.

[0030] 4. The bottom moving rollers and side fixing rings of the machine body, together with the quick interface, enable the equipment to be quickly moved and installed on the site, which improves the installation efficiency compared with traditional equipment. It is especially suitable for mobile scenarios such as field operations and multi-equipment inspection.

[0031] 5. The equipment protection and alarm system integrates pressure sensors, differential pressure transmitters, leakage current protectors, and audible and visual alarms. It monitors oil pressure, filter blockage status, and circuit safety in real time, with a short fault response time. Compared with traditional equipment, it improves fault handling efficiency and effectively prevents equipment damage and safety accidents.

[0032] 6. Each filter unit adopts a detachable filter element structure, which shortens maintenance time. Attached Figure Description

[0033] Figure 1 This is a structural diagram of a multi-functional oil filter.

[0034] Figure 2 This is a circuit diagram of a multi-functional oil filter.

[0035] Figure 3 This is a schematic diagram of the oil circuit of a multi-functional oil filter.

[0036] Figure 4 This is a top view of the internal structure of a multi-functional oil filter.

[0037] Figure 5 This is a left-side view of the internal structure of a multi-functional oil filter.

[0038] Figure reference numerals: 1 is variable frequency oil pump; 2 is impurity filter; 3 is deacidification filter; 4 is water removal filter; 5 is contamination sensor; 6 is electric three-way valve; 7 is fixing ring; 8 is embedded configuration unit; 9 is power indicator light; 10 is start switch; 11 is stop switch; 12 is running indicator light; 13 is emergency stop switch; 14 is audible and visual alarm; 15 is differential pressure transmitter; 16 is coarse filter; 17 is moving roller; 18 is pressure sensor; 19 is moisture sensor; 20 is flow meter; 21 is quick interface; 6-1 is electric three-way valve A; 6-2 is electric three-way valve B; 6-3 is electric three-way valve C. Detailed Implementation

[0039] The technical solution of this utility model will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are not all embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] It should be noted that the terms "center", "upper", "lower", "horizontal", "left", "right", "front", "back", "lateral", "longitudinal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0041] Example 1: A multi-functional oil filter

[0042] The multifunctional oil filter of this utility model is as follows: Figure 1 As shown. This utility model of a multifunctional oil filter includes a body, a power supply system, an intelligent control system, an oil supply system, a filtration system, a detection system, an equipment protection alarm system, inlet and outlet oil pipes, and inlet and outlet interfaces;

[0043] The power supply system includes: a power supply, a leakage current protection switch, a power switch, cables, and an emergency stop switch;

[0044] The intelligent control system includes: a PLC, an embedded configuration unit, a power indicator light, a running indicator light, and a flow meter;

[0045] The oil supply system includes: a frequency converter, a motor, and a frequency converter oil pump;

[0046] The filtration system includes: a coarse filter, an impurity filter, a water removal filter, and an acid removal filter;

[0047] The detection system includes: a contamination sensor and a moisture sensor;

[0048] The equipment protection alarm system includes: an audible and visual alarm, a pressure sensor, a differential pressure transmitter, and a leakage current protector.

[0049] The intelligent control system is electrically connected to the power supply system, oil supply system, filtration system, detection system and equipment protection alarm system, respectively, and is used to control the operation of the oil filter and collect detection data.

[0050] The circuit system of the multi-functional oil filter is as follows Figure 2 As shown:

[0051] (1) Power supply link: The AC220V power supply is divided into two paths. One path is through the AC contactor to power the variable frequency oil pump; the other path is input to the switching power supply and converted to DC24V to power the embedded configuration all-in-one machine, pollution sensor, moisture sensor and flow meter and actuator (AC contactor coil, differential pressure transmitter, electric three-way valve A / B / C).

[0052] (2) Signal interaction: The pollution level sensor, moisture sensor and flow meter collect signals and transmit them to the embedded configuration machine via RS485 bus; the embedded configuration machine outputs control signals and controls the AC contactor coil and electric three-way valve A / B / C to perform actions through the DC24V circuit, while the differential pressure transmitter is directly connected to receive DC24V power and feeds back the status.

[0053] The oil circuit system of the multi-functional oil filter is as follows Figure 3 As shown:

[0054] The outlet of the coarse filter 16 is connected to the inlet of the variable frequency oil pump 1; the inlet of the impurity filter 2 is connected to the outlet of the variable frequency oil pump 1 via an electric three-way valve A6-1; the water removal filter and the deacidification filter are connected to the impurity filter via electric three-way valves B6-2 and C6-3. The electric three-way valves A6-1, B6-2, and C6-3 are electrically connected to the intelligent control system to achieve a single filtration mode or a multi-stage filtration mode. The impurity filter 2 is connected to a differential pressure transmitter 15 and a contamination sensor 5; the water removal filter 4 and the deacidification filter 3 are connected to a pressure sensor 18 and are connected to a moisture sensor 19.

[0055] When the multi-functional oil filter is working, the oil enters through quick-connect port 21, first undergoes preliminary filtration through coarse filter 16, and then flows into variable frequency oil pump 1, which provides power to drive the oil flow. After the pump, the oil reaches electric three-way valve A6-1, through which the flow direction can be switched. If it enters the impurity filtration branch, the oil first passes through contamination sensor 5 for detection, and then flows through impurity filter 2 for fine impurity removal, with differential pressure transmitter 15 monitoring the pressure difference before and after the filter; alternatively, it can enter water removal filter 4 and / or deacidification filter 3 through electric three-way valve B6-2 / electric three-way valve C6-3, respectively achieving water removal and deacidification functions, with pressure sensor 18 monitoring the branch pressure. After filtration, the oil passes through moisture sensor 19 and flow meter 20 to detect relevant parameters, and then flows out through another quick-connect port 21, realizing oil purification circulation or output.

[0056] like Figure 3 , Figure 4 and Figure 5 As shown:

[0057] The outlet end of the coarse filter 16 inside the multi-functional oil filter is connected to the inlet end of the variable frequency oil pump 1; the inlet end of the impurity filter 2 is connected to the outlet end of the variable frequency oil pump 1 via an electric three-way valve 6; the water removal filter 4 and the deacidification filter 3 are connected to the impurity filter 2 via the electric three-way valve 6. The impurity filter 2 is connected to a differential pressure transmitter 15 and a contamination sensor 5; pressure sensors and moisture sensors are respectively installed at both ends of the water removal filter 4 and the deacidification filter 3.

[0058] The multi-functional oil filter's outer casing is equipped with an embedded configuration panel 8, a power indicator light 9, a start switch 10, a stop switch 11, a running indicator light 12, an emergency stop switch 13, and an audible and visual alarm 14. The bottom of the multi-functional oil filter is equipped with casters 17, and both the bottom and top of the machine body are fitted with retaining rings 7.

[0059] Example 2: Overall Working Process of the Multifunctional Oil Filter

[0060] 1. System startup and power supply

[0061] (1) Connect the power supply: Connect the oil filter to the AC220V power supply, close the leakage protection switch in the control box, and the power supply system will start. At this time, the power indicator light 9 will light up, and the embedded configuration integrated machine 8 in the intelligent control system will be turned on and enter the standby state.

[0062] (2) Initialization check: The PLC automatically detects the status of each module, including the oil supply system (frequency converter, motor, frequency converter oil pump), the filtration system (coarse filter, impurity filter, water removal filter and deacidification filter), the detection system (contamination sensor, moisture sensor) and the equipment protection alarm system (audible and visual alarm, pressure sensor, differential pressure transmitter and leakage current protector). After confirming that there is no fault, the operation indicator light 12 will light up.

[0063] 2. Oil filtration function implemented

[0064] (1) Single filtration mode (impurity filtration)

[0065] Click the "Impurity Filtration" button on the HMI of the embedded configuration machine 8. The PLC controls the electric three-way valve A (6) to switch to the oil circuit of the impurity filter 2, and at the same time starts the variable frequency oil pump 1. After the oil is initially filtered by the coarse filter 16, it is transported to the impurity filter 2 by the variable frequency oil pump, and the filter element intercepts solid contaminants. The filtered oil flows out through the pipeline for single impurity filtration. During the filtration process, the contamination sensor 5 monitors in real time. If the contamination level exceeds the standard, the PLC automatically increases the number of filtration cycles until the detection value meets the standard. Press the "Stop" button on the HMI, the variable frequency oil pump stops working, the electric three-way valve resets, and the filtration is completed.

[0066] (2) Multi-stage series filtration mode (impurity filtration + water removal filtration + acid removal filtration)

[0067] On the HMI of the embedded configuration integrated machine 8, simultaneously clicking the "Impurity Filtration" and "Water Removal & Deacidification" buttons will cause the PLC to control the electric three-way valves A, B, and C to sequentially switch and open the corresponding oil circuits. The oil first passes through impurity filter 2 to remove solid impurities, then enters water removal filter 4, where the water removal filter element separates the water. After water removal, the three-way valve switches to deacidification filter 3 to neutralize acidic substances. During filtration, contamination sensor 5 and moisture sensor monitor oil parameters in real time. If the contamination level or moisture content exceeds the standard, the PLC automatically increases the number of filtration cycles until the detected value meets the standard. Pressing the "Stop" button on the HMI stops the variable frequency oil pump, resets the electric three-way valve, and filtration is complete.

[0068] 3. Equipment protection and emergency response

[0069] (1) Filter clogging alarm:

[0070] The differential pressure transmitter 15 at both ends of the impurity filter 2 monitors the differential pressure in real time. If the filter element is clogged and the differential pressure exceeds the threshold, the audible and visual alarm 14 will issue an audible and visual alarm, and the PLC will display a "Replace impurity filter element" prompt.

[0071] The pressure sensors at the water removal filter 4 and the acid removal filter 3 monitor the oil circuit pressure in real time. If the pressure drops or rises suddenly, the PLC determines that the filter element is blocked or the pipeline is abnormal, triggering an audible and visual alarm to prompt maintenance of the water removal or acid removal filter element.

[0072] Each unit of the filtration system (coarse filter 16, impurity filter 2, deacidification filter 3, and water removal filter 4) adopts a quick-release filter element structure. The filter element can be replaced simply by unscrewing the housing, without the need for professional tools, making maintenance convenient.

[0073] (2) Residual current protection:

[0074] The leakage current protection device in the power supply system monitors the circuit in real time. If leakage occurs, it will immediately cut off the power supply. The emergency stop switch 13 can also manually cut off all power to ensure safety.

[0075] 4. Oil filling function

[0076] The inlet and outlet oil pipes are connected to external equipment (such as a refueling nozzle) via a quick-connect interface for oil filling. During filling, the electric three-way valve A switches to the filling channel, and the oil is directly output.

[0077] (1) Filling function: Click the “Start” button on the human-machine interface of the embedded configuration machine 8 to start filling; click the “Stop” button to stop filling;

[0078] (2) Timed refilling: Click the “Timed refilling” button on the human-machine interface of the embedded configuration all-in-one machine 8, a refilling time dialog box will pop up, enter the time, click the “OK” button, and then press the “Start” button to start refilling. The system will automatically stop after the time is up.

[0079] (3) Quantitative filling: Click the “Quantitative filling” button on the human-machine interface of the embedded configuration all-in-one machine 8, the quantitative filling dialog box will pop up, enter the target oil volume, click the “OK” button, and then press the “Start” button to start filling. It will automatically stop after the quantitative value is reached.

[0080] Example 3: Equipment Portability and Installation Optimization

[0081] 1. Mobile and Fixed Design

[0082] Site transfer: The 17 movable rollers at the bottom of the machine support the rapid movement of the equipment on flat ground, which is suitable for multi-equipment inspection or field operation scenarios.

[0083] Fixed installation: After arriving at the work site, the equipment is fixed to the truck, bracket or other platform by the bottom and top fixing rings 7 to prevent vibration from affecting the stability of operation.

[0084] 2. Quick-connect interface and pipeline connection

[0085] Interface design: The input and output interfaces adopt a quick-plug structure, which eliminates the need for tools when connecting to external devices.

[0086] Piping layout: Electric three-way valves (A, B, C) are integrated into the oil circuit system, and oil circuit switching is controlled by PLC, avoiding manual pipe replacement and reducing operational errors. The oil filter can be used as an independent unit, separate from the equipment's oil circuit.

[0087] The above technical features constitute the preferred embodiment of this utility model, which has strong adaptability and optimal implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the needs of different situations.

[0088] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A multi-functional oil filter, characterized in that, The multi-functional oil filter includes a body, a power supply system, an intelligent control system, an oil supply system, a filtration system, a detection system, an equipment protection and alarm system, inlet and outlet oil pipes, and inlet and outlet interfaces. The filtration system includes: a coarse filter, an impurity filter, a water removal filter, and an acid removal filter; The detection system includes: a contamination sensor and a moisture sensor; The equipment protection alarm system includes: an audible and visual alarm, a pressure sensor, a differential pressure transmitter, and a leakage current protector.

2. The multifunctional oil filter according to claim 1, characterized in that, The outlet end of the coarse filter is connected to the inlet end of the variable frequency oil pump; the inlet end of the impurity filter is connected to the outlet end of the variable frequency oil pump via an electric three-way valve A; the water removal filter and the acid removal filter are connected to the impurity filter via electric three-way valves B and C.

3. The multifunctional oil filter according to claim 2, characterized in that, The electric three-way valves A, B, and C are electrically connected to the intelligent control system to achieve a single filtration mode or a multi-stage filtration mode.

4. The multifunctional oil filter according to claim 1, characterized in that, The intelligent control system is electrically connected to the power supply system, oil supply system, filtration system, detection system and equipment protection alarm system, respectively, and is used to control the operation of the oil filter and collect detection data.

5. The multifunctional oil filter according to claim 1, characterized in that, The impurity filter is connected to a differential pressure transmitter and a contamination sensor; the water removal filter and the deacidification filter are connected to pressure sensors and are in communication with a moisture sensor.

6. The multifunctional oil filter according to claim 1, characterized in that, The power supply system includes: a power source, a leakage current protection switch, a power switch, cables, and an emergency stop switch.

7. The multifunctional oil filter according to claim 1, characterized in that, The intelligent control system includes: a PLC, an embedded configuration unit, a power indicator, a running indicator, and a flow meter.

8. The multifunctional oil filter according to claim 1, characterized in that, The oil supply system includes: a frequency converter, a motor, and a frequency converter oil pump.

9. The multifunctional oil filter according to claim 1, characterized in that, The bottom of the machine body is equipped with movable rollers, and both the bottom and top of the machine body are equipped with fixing rings.

10. The multifunctional oil filter according to claim 1, characterized in that, The inlet / outlet interface is a quick-connect interface, which can be quickly connected to the drain or fill port of external equipment via inlet / outlet oil pipes.

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