Hydraulic oil filtering device with quick filter element troubleshooting function

Abstract

The utility model relates to the technical field of oil product filtering, in particular to a hydraulic oil filtering device with a quick filter element fault removing function, which solves the problem that the filter element fault cannot be removed in time in the prior art, and comprises a filtering tank, an electric control cabinet and an installation cabinet, the filtering tank is connected with the installation cabinet through a pipeline, and the electric control cabinet is connected with the installation cabinet through a pipeline. The mounting cabinet is connected with the electric control cabinet; a plurality of filter elements are mounted in the filter tank, the bottom of the filter tank is connected with a plurality of oil outlet branch pipes which are communicated with the filter elements and are in one-to-one correspondence with the filter elements, the oil outlet branch pipes are connected with the same oil outlet header pipe, and a detection switch valve is mounted on each oil outlet branch pipe; the filtering tank is connected with an oil inlet pipe, the oil inlet pipe penetrates through the interior of the mounting cabinet and is arranged at the bottom of the filtering tank, and a pipeline pressure protection detection mechanism is arranged on the part, located in the mounting cabinet, of the oil inlet pipe. The hydraulic oil filter is used for filtering used hydraulic oil and waste oil containing impurities, and has the advantages of quick removal of filter element faults and pressure detection protection.

Description

Technical Field

[0001] This utility model relates to the field of oil filtration technology, and in particular to a hydraulic oil filtration device with a rapid filter element troubleshooting function. Background Technology

[0002] Hydraulic oil is typically used in hydraulic systems to transmit energy, lubricate moving parts, seal moving components, and conduct heat. During long-term use, various contaminants (such as solid particles, water, and air) can cause severe wear on the components of the hydraulic system, reducing its lifespan. Therefore, hydraulic oil needs to be replaced periodically after prolonged use. However, replacing it with brand new hydraulic oil is costly, and discarding used hydraulic oil containing impurities is wasteful. As a result, some hydraulic oil filtration devices are available that can filter and reuse hydraulic oil, making it more environmentally friendly and resource-saving.

[0003] In existing hydraulic oil filtration devices, when multiple filter elements are used for synchronous filtration, it is impossible to promptly identify which one or more filter elements are malfunctioning when a problem occurs. It is necessary to stop the machine, remove all filter elements for individual testing, maintenance, and replacement, which wastes time, manpower, and resources, reduces the working efficiency of the device, and hinders the normal operation of the equipment. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a hydraulic oil filtration device with a rapid filter element troubleshooting function.

[0005] The technical solution adopted in this utility model is:

[0006] A hydraulic oil filtration device with a rapid filter element troubleshooting function includes a filter tank, an electrical control cabinet, and an installation cabinet. The filter tank is connected to the installation cabinet via a pipeline, and the installation cabinet is connected to the electrical control cabinet.

[0007] The filter tank is equipped with multiple filter elements. The bottom of the filter tank is connected to multiple oil outlet branch pipes that are connected to the filter elements and correspond one-to-one. Each oil outlet branch pipe is connected to the same main oil outlet pipe, and each oil outlet branch pipe is equipped with a detection switch valve.

[0008] The filter tank is connected to an oil inlet pipe, which passes through the interior of the mounting cabinet and is located at the bottom of the filter tank. A pipeline pressure protection and detection mechanism is installed on the portion of the oil inlet pipe located inside the mounting cabinet.

[0009] Furthermore, an oil inlet pump is installed on the oil inlet pipe, and the oil inlet pump is installed in the mounting cabinet. The pipeline pressure protection and detection mechanism includes a Y-type pipeline filter installed on the oil inlet pipe, a pressure detection and display mechanism installed at one end of the oil inlet pump outlet, and return pipes that connect the inlet and outlet ends of the oil inlet pump respectively.

[0010] Furthermore, the pressure detection and display mechanism includes a pressure gauge hose and a pressure detection switch respectively connected to the oil inlet pipe. The pressure gauge hose is connected to a pressure display gauge, which is mounted on the surface of the mounting cabinet. A reflux regulating valve is installed on the reflux pipe.

[0011] Furthermore, oil pipe clamps are installed on both the oil outlet branch pipe and the oil outlet main pipe. The oil pipe clamps include a band that surrounds the oil outlet branch pipe and the oil outlet main pipe, and fasteners are connected between the two ends of the band. Clamp installation connectors are provided on the oil outlet branch pipe and the oil outlet main pipe at the installation position of the oil pipe clamp.

[0012] Furthermore, the filter element and the oil outlet branch pipe are evenly distributed inside the filter tank and at the bottom of the filter tank, respectively. The oil outlet branch pipes located on both sides of the main oil outlet pipe and at the end of the main oil outlet pipe away from the outlet are connected to the main oil outlet pipe through bends. The oil outlet branch pipe located above the main oil outlet pipe is directly connected to the main oil outlet pipe.

[0013] Furthermore, both the inlet end of the oil inlet pipe and the outlet end of the oil outlet main pipe are connected to end fixing components. The end fixing components include fixing columns disposed at the bottom of the oil inlet pipe and the oil outlet main pipe. The fixing columns are connected to pressure plates disposed above the oil inlet pipe and the oil outlet main pipe by fixing bolts. The shape between the pressure plates and the fixing columns forms a fixing installation hole for accommodating the installation of the oil inlet pipe and the oil outlet main pipe.

[0014] Furthermore, the fixing bolts between the fixed column and the pressure plate are respectively installed on both sides of the pipe, and a buffer washer fitted on the fixing bolt is also installed between the fixed column and the pressure plate.

[0015] Furthermore, the installation cabinet is connected to a waste oil collection tank, and a waste oil recovery pipe is connected to the waste oil collection tank. The waste oil collection tank is connected to a vacuum pump installed inside the installation cabinet via a pipe. The waste oil collection tank is also connected to a waste oil discharge pipe, which is connected to the bottom of the filter tank. A waste oil discharge valve is installed on the waste oil discharge pipe.

[0016] Furthermore, an exhaust valve is installed on the top of the waste oil collection tank and the filter tank respectively, and a vacuum pressure gauge is also connected to the waste oil collection tank.

[0017] The beneficial effects of this utility model are:

[0018] This utility model's hydraulic oil filtration device, by setting up oil outlet branch pipes connected to the filter elements and installing individual detection switch valves on each oil outlet branch pipe, enables each filter element to be individually connected to the main oil outlet pipe. Based on this function, it achieves the effect of quickly eliminating filter element faults. When some filter elements malfunction, by repeatedly closing some detection switch valves and opening some detection switch valves while introducing hydraulic oil for filtration, and observing whether the oil can achieve normal filtration, the faulty filter elements can be quickly and gradually eliminated. Compared with the prior art, this utility model can quickly obtain information about the specific faulty filter element without disassembling all filter elements for inspection. Only the faulty filter element needs to be repaired or replaced to allow the equipment to continue operating, saving time and resources and improving the working efficiency of the filtration device.

[0019] The pressure protection detection mechanism of this utility model can detect the pressure of the oil inlet pipe and protect the device. When the oil inlet pressure is too high and exceeds the set value, it will prevent oil from entering the filter tank and reduce the pressure, thereby avoiding damage to the equipment components under high pressure. When the oil inlet pressure is too low and below the pressure required for filtration, it will circulate and pressurize the oil to reach the preset pressure value, so as to ensure the filtration effect of the filter tank under a certain pressure, maintain the normal operation of the device, and ensure the quality of the oil output. Attached Figure Description

[0020] Figure 1 This is a three-dimensional view of the overall structure of the hydraulic oil filtration device of this utility model;

[0021] Figure 2 This is a front view of the hydraulic oil filtration device of this utility model;

[0022] Figure 3 This is a left view of the hydraulic oil filtering device of this utility model;

[0023] Figure 4 This utility model presents a perspective view illustrating the bottom structure of the filter tank and the internal structure of the mounting cabinet.

[0024] Figure 5 for Figure 4 The main view;

[0025] Figure 6 for Figure 5 Top view;

[0026] Figure 7 This is a schematic diagram of the pipeline pressure protection and detection mechanism of this utility model;

[0027] Figure 8 This is a schematic diagram of the structure of the oil pipe clamp of this utility model;

[0028] Figure 9This is a schematic diagram of the end fixing component of this utility model.

[0029] Figure reference numerals:

[0030] 1-Filter tank, 2-Electrical control cabinet, 3-Installation cabinet, 4-Filter element, 5-Outlet branch pipe, 6-Outlet main pipe, 7-Detection switch valve, 8-Inlet pipe, 9-Pipeline pressure protection detection mechanism, 91-Y-type pipeline filter, 92-Pressure detection display mechanism, 921-Pressure gauge hose, 922-Pressure detection switch, 93-Pressure display gauge, 94-Return pipe, 95-Return regulating valve, 10-Inlet pump, 11-Pipe clamp, 111-Clamping strap, 112-Fastener, 113-Clamping mounting connector, 12-End fixing component, 121-Fixing column, 122-Fixing bolt, 123-Pressure plate, 124-Buffer washer, 13-Waste oil recovery pipe, 14-Waste oil discharge pipe, 15-Waste oil discharge valve, 16-Exhaust valve, 17-Vacuum pressure gauge, 18-Waste oil collection box, 19-Vacuum pump. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings.

[0032] This utility model relates to a hydraulic oil filtration device with a rapid filter element troubleshooting function. It is mainly used to treat hydraulic oil containing impurities after use, allowing the filtered oil to be reused, saving resources and being more environmentally friendly. Furthermore, this hydraulic oil filtration device has functions for quickly troubleshooting filter element malfunctions and inlet pressure detection and protection. Specifically, this utility model is implemented as follows:

[0033] Please refer to Figures 1-6This utility model discloses a hydraulic oil filtration device, comprising a filter tank 1 for hydraulic oil filtration, an installation cabinet 3 for providing installation space for various components, and an electrical control cabinet 2 for power switch control. To improve filtration efficiency and the purity of the output oil, this utility model incorporates multiple filter elements 4 within the filter tank 1 to simultaneously filter the hydraulic oil. The filter elements 4 are selected based on the size, shape, and processing capacity of the filter tank 1, and are evenly distributed inside the filter tank 1. The hydraulic oil is filtered by pressure within the filter tank 1, permeating into the filter elements 4. To address the problem in existing hydraulic oil filtration devices where, when multiple filter elements 4 malfunction and cannot perform filtration, it is difficult to quickly identify which filter element 4 is faulty, requiring the removal and testing of all filter elements 4, this utility model provides an oil outlet branch pipe 5 connected to the bottom of each filter element 4, with a corresponding detection switch valve 7 installed on each oil outlet branch pipe 5. Each oil outlet branch pipe 5 is located at the bottom of the filter tank 1. The filtered hydraulic oil flows downwards from the center of filter element 4, collects through the outlet branch pipe 5 into the outlet main pipe 6 connected to the outlet branch pipe 5, and finally outputs the filtered hydraulic oil from the outlet main pipe 6. When some filter elements 4 malfunction, multiple filter elements 4 can be grouped together, and each group of filter elements 4 can be filtered individually. The detection switch valve 7 of the outlet branch pipe 5 corresponding to that group of filter elements 4 is opened, while the detection switch valves 7 of the outlet branch pipes 5 of other groups of filter elements 4 are closed. The purity and flow rate of the output oil are observed and measured. Whether the efficiency is normal, if the filter element 4 in this group is not filtering properly, then the faulty filter element 4 is included in this group of filter elements 4. The group of filter elements 4 is further subdivided and each one is worked individually. The above oil output observation and measurement steps are repeated until the faulty filter element 4 is found. Then the faulty filter element 4 can be removed, repaired and replaced individually. Compared with removing all filter elements 4, this utility model can eliminate the corresponding faulty filter element 4 more quickly, saving the time of removal, inspection and reinstallation, reducing equipment downtime and improving the working efficiency of the device.

[0034] Please refer to Figure 4 , Figure 5 and Figure 7In the figure, the inlet and outlet ends of the oil inlet pipe 8 of this utility model are both located at the bottom of the filter tank 1. The inlet end of the oil inlet pipe 8 is connected to the external raw material supply end, while the outlet end of the oil inlet pipe 8 leads into the interior of the filter tank 1. The middle section of the oil inlet pipe 8 is arranged in a circuitous manner inside the mounting cabinet 3. To solve the problems of insufficient filtration conditions due to low oil inlet pressure or damage to components due to excessive pressure, this utility model is equipped with a pressure protection detection mechanism on the oil inlet pipe 8 section inside the mounting cabinet 3. The pressure protection detection mechanism can detect the pressure of the oil inlet pipe 8 and protect the device. When the oil inlet pressure is too high and exceeds the set value, it prevents the raw material from entering the filter tank 1 and reduces the pressure, thereby avoiding component damage under high pressure. When the oil inlet pressure is too low and below the required filtration pressure, it pressurizes the oil inlet to reach the preset pressure value to ensure the filtration effect of the filter tank 1 under a certain pressure, maintain the normal operation of the device, and ensure the quality of the oil output.

[0035] Please refer to Figure 5 and Figure 7 In this invention, the oil inlet pipe 8 is powered and pressurized by the oil inlet pump 10 connected to the inside of the mounting cabinet 3, which pressurizes and pumps oil into the filter tank 1. As a preferred embodiment, the oil inlet pump 10 can be a gear pump. To protect the normal operation of the oil inlet pump 10 and prevent excessive impurities from entering and damaging its operating components, the pipeline pressure protection and detection mechanism 9 of this invention is equipped with a Y-type pipeline filter 91 on one side of the oil inlet end of the oil inlet pump 10. This filter can preliminarily filter obvious particulate impurities, blocking impurities that may damage the oil inlet pump 10 and ensuring the smooth flow of oil. The oil pump 10 can always work normally and maintain the required pressure stably. In order to detect and observe the pressure of the oil entering the filter tank 1, the pipeline pressure protection detection mechanism 9 is equipped with a pressure detection and display mechanism 92 on the oil outlet side of the oil pump 10 to monitor the oil pressure delivered by the oil pump 10 in real time. In order to adjust the pressure when the oil inlet pressure is lower than the lower limit or higher than the upper limit, the pipeline pressure protection detection mechanism 9 connects a return pipe 94 between the oil inlet and oil outlet ends of the oil pump 10, so that when the pressure range conditions are not met, the hydraulic oil can be returned through the return pipe 94 for circulation pressurization or depressurization.

[0036] To facilitate external observation of the oil inlet pressure of the oil inlet pipe 8 by staff, the pressure detection and display mechanism 92 connects a pressure gauge hose 921 to the oil inlet pipe 8 on the outlet side of the oil pump 10, and connects the pressure gauge hose 921 to the pressure display gauge 93 on the surface of the hydraulic oil filter device to display the pressure of this part in real time. The pressure detection switch 922, which is also set on the oil inlet pipe 8 on the outlet side of the oil pump 10, detects and collects pressure information in real time, thereby providing a basis for the device to determine whether backflow pressurization or depressurization is required. The backflow regulating valve 95 can adjust the opening and closing of the backflow pipe 94 and the flow rate, and can be opened and adjusted according to the actual situation.

[0037] Please refer to Figure 4 , Figure 5 and Figure 8 To ensure a tight connection at the joint of the pipeline under high oil pressure, preventing loosening and leakage, and facilitating disassembly and installation during maintenance, this invention installs pipe clamps 11 on each branch pipe 5 and the main pipe 6. The pipe clamps 11 tightly wrap and fix the pipeline connection with their clamp straps 111, and fasteners 112 secure both ends of the clamp straps 111 for added strength. The fasteners 112 can be threaded fasteners, such as adjusting bolts. For ease of operation, a flat head can be provided at the end of the fastener 112 for easy gripping by operators, further facilitating pipeline disassembly and assembly. To facilitate the connection of the pipe clamps 11, a clamp installation connector 113 can be integrally formed at the pipeline connection, matching the shape of the clamp straps 111 of the pipe clamps 11 (e.g., a disc shape, with the clamp straps 111 installed around the outer circumference of the disc), ensuring both sealing and tightness while facilitating the installation of the pipe clamps 11. Preferably, the oil pipe clamp 11 can be installed at the pipe connection points of all oil-conducting pipes in the device, except for the oil outlet branch pipe 5 and the oil outlet main pipe 6, such as the oil inlet pipe 8 and the waste oil discharge pipe 14, to improve the stability of the pipes.

[0038] Please refer to Figures 4-6 In one preferred embodiment, the filter element 4 and its corresponding oil outlet branch pipe 5 of this utility model are each provided with seven (e.g., Figure 4 and Figure 6As shown, two branch pipes 5 are connected to each side of the main oil outlet pipe 6 via bends. One branch pipe 5 is connected to the end of the main oil outlet pipe 6 furthest from the outlet via a bend, while the other two branch pipes 5 are directly connected above the main oil outlet pipe 6. This distribution structure and number of filter elements 4 and branch pipes 5 result in a more uniform distribution, stronger hydraulic oil handling capacity, and adaptability to most operating conditions. Depending on the size of the filter element 4, the size of the filter tank 1, and the design requirements of the device's processing technology, the number of filter elements 4 and corresponding branch pipes 5 can be two, three, four, five, or more, as long as a uniform distribution is achieved.

[0039] Please refer to Figure 4 , Figure 9 To ensure a secure and stable connection between the pipeline and the hydraulic oil filter device, while also facilitating quick disassembly and assembly during pipeline maintenance, this invention incorporates an end fixing component 12 near the outlet end of each pipeline, connecting it to the hydraulic oil filter device. The end fixing component 12 comprises a fixing column 121 at the bottom of the pipeline and a pressure plate 123 above the pipeline. These two parts are fixed together by fixing bolts 122, forming a mounting hole through which the pipeline passes, ensuring stable fixation between the pipeline end and the device. Furthermore, the pipeline can be separated from the device by removing or detaching the fixing bolts 122, facilitating pipeline maintenance. To prevent the fixing bolts 122 from being overtightened during installation, potentially damaging the pipeline or the end fixing component 12 itself, a buffer washer 124 is fitted onto the fixing bolts 122 between the pressure plate 123 and the fixing column 121 for cushioning. The buffer washer 124 can be relatively thick, provided it accommodates the dimensions of the pipeline, to ensure effective cushioning.

[0040] Please refer to Figures 1-6 This utility model is equipped with a waste oil collection tank 18, which can collect waste oil from the hydraulic oil storage container containing used hydraulic oil through the waste oil recovery pipe 13 connected to it. The waste oil is extracted and collected by the vacuum pump 19 in the installation cabinet 3. In order to facilitate the emptying of the inside of the device when it needs to be cleaned and maintained (for example, when replacing the filter element 4), this utility model is equipped with a waste oil discharge pipe 14 that connects the waste oil collection tank 18 and the filter tank 1 respectively. When it is necessary to empty the inside of the equipment, the waste oil discharge valve 15 on the waste oil discharge pipe 14 can discharge the waste oil to facilitate subsequent internal cleaning and maintenance.

[0041] In order to balance the pressure inside and outside the equipment when needed (e.g., when the inside of the device needs to be opened) and to meet the need to discharge other gases volatilized inside the device, this utility model is equipped with an exhaust valve 16 on the top of the waste oil collection tank 18 and the filter tank 1 to discharge the gas and balance the internal and external pressure. The discharged gas can be treated to be harmless before being discharged, for example, by using liquids such as water to absorb the odor or harmful gases. In order to facilitate the observation of the pressure inside the waste oil collection tank 18 when it is working, a vacuum pressure gauge 17 is also installed on the waste oil collection tank 18 to display the pressure in real time.

[0042] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A hydraulic oil filtration device with a rapid filter element troubleshooting function, characterized in that, It includes a filter tank, an electrical control cabinet, and an installation cabinet. The filter tank is connected to the installation cabinet via a pipe, and the installation cabinet is connected to the electrical control cabinet. The filter tank is equipped with multiple filter elements. The bottom of the filter tank is connected to multiple oil outlet branch pipes that are connected to the filter elements and correspond one-to-one. Each oil outlet branch pipe is connected to the same main oil outlet pipe, and each oil outlet branch pipe is equipped with a detection switch valve. The filter tank is connected to an oil inlet pipe, which passes through the interior of the mounting cabinet and is located at the bottom of the filter tank. A pipeline pressure protection and detection mechanism is installed on the portion of the oil inlet pipe located inside the mounting cabinet.

2. The hydraulic oil filtration device with rapid filter element troubleshooting function according to claim 1, characterized in that, An oil inlet pump is installed on the oil inlet pipe and is installed in the mounting cabinet. The pipeline pressure protection and detection mechanism includes a Y-type pipeline filter installed on the oil inlet pipe, a pressure detection and display mechanism installed at one end of the oil inlet pump outlet, and return pipes that connect the inlet and outlet ends of the oil inlet pump respectively.

3. A hydraulic oil filtration device with rapid filter element troubleshooting function according to claim 2, characterized in that, The pressure detection and display mechanism includes a pressure gauge hose and a pressure detection switch, which are respectively connected to the oil inlet pipe. The pressure gauge hose is connected to a pressure display gauge, which is mounted on the surface of the mounting cabinet. A reflux regulating valve is installed on the reflux pipe.

4. A hydraulic oil filtration device with rapid filter element troubleshooting function according to claim 1, characterized in that, Oil pipe clamps are installed on both the oil outlet branch pipe and the oil outlet main pipe. Each oil pipe clamp includes a band that wraps around the oil outlet branch pipe and the oil outlet main pipe. Fasteners are connected between the two ends of the band. Clamp installation connectors are provided on the oil outlet branch pipe and the oil outlet main pipe at the installation position of the oil pipe clamp.

5. A hydraulic oil filtration device with rapid filter element troubleshooting function according to claim 1, characterized in that, The filter element and the oil outlet branch pipe are evenly distributed inside the filter tank and at the bottom of the filter tank. The oil outlet branch pipes located on both sides of the main oil outlet pipe and at the end of the main oil outlet pipe away from the outlet are connected to the main oil outlet pipe through bends. The oil outlet branch pipe located above the main oil outlet pipe is directly connected to the main oil outlet pipe.

6. A hydraulic oil filtration device with rapid filter element troubleshooting function according to claim 1, characterized in that, Both the inlet end of the oil inlet pipe and the outlet end of the oil outlet main pipe are connected to end fixing components. The end fixing components include fixed columns located at the bottom of the oil inlet pipe and the oil outlet main pipe. The fixed columns are connected by fixing bolts to pressure plates located above the oil inlet pipe and the oil outlet main pipe. The shape between the pressure plates and the fixed columns forms a fixing installation hole for accommodating the installation of the oil inlet pipe and the oil outlet main pipe.

7. A hydraulic oil filtration device with rapid filter element troubleshooting function according to claim 6, characterized in that, The fixing bolts between the fixed column and the pressure plate are respectively installed on both sides of the pipe, and a buffer washer fitted on the fixing bolt is also installed between the fixed column and the pressure plate.

8. A hydraulic oil filtration device with rapid filter element troubleshooting function according to claim 1, characterized in that, The installation cabinet is connected to a waste oil collection tank, which is connected to a waste oil recovery pipe. The waste oil collection tank is connected to a vacuum pump installed inside the installation cabinet via a pipe. The waste oil collection tank is also connected to a waste oil discharge pipe, which is connected to the bottom of the filter tank. A waste oil discharge valve is installed on the waste oil discharge pipe.

9. A hydraulic oil filtration device with rapid filter element troubleshooting function according to claim 8, characterized in that, The waste oil collection tank and the filter tank are each equipped with an exhaust valve on the top, and a vacuum pressure gauge is also connected to the waste oil collection tank.

Images