Heating assembly of oil filter vehicle
By integrating a heating element inside the oil filtration cart to form an integrated structure, the problem of low filtration efficiency in low-temperature environments is solved, the equipment structure is simplified, and the oil heating efficiency and equipment cleanliness are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHU GUANGYUAN HYDRAULIC TECH CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-19
AI Technical Summary
Existing oil filtration carts have low filtration efficiency in low-temperature environments or high-viscosity oil scenarios, and the external heating structure requires additional connecting pipes, which increases the complexity of the equipment.
The heating tube is integrated inside the oil filtration cart to form an integrated structure. The integrated design simplifies the connection, and the S-shaped bending heating tube and sealed connection method ensure oil heating efficiency and equipment cleanliness.
It improves the overall integrity and maintainability of the equipment, simplifies the structure, avoids the connection pipes of the external heating structure, and improves the oil heating efficiency and the compactness of the equipment.
Smart Images

Figure CN224261940U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil filtration cart technology, and in particular to a heating component for an oil filtration cart. Background Technology
[0002] An oil filtration cart is a device used to purify industrial lubricating oil, hydraulic oil, turbine oil, transformer oil, and other fluids. It primarily removes impurities, moisture, gases, and other contaminants from the oil through filtration, thereby improving oil quality and extending equipment lifespan. It is widely used in industries such as power, metallurgy, petrochemicals, and machinery manufacturing. In practical applications, oil filtration carts are commonly used during equipment maintenance, oil circulation purification, or oil replacement.
[0003] Oils easily absorb moisture and impurities during use, or their viscosity increases and fluidity decreases due to low ambient temperatures, affecting filtration efficiency and potentially clogging the filter element. Therefore, to improve oil filtration efficiency, accelerate moisture removal, and improve oil fluidity, it is often necessary to perform appropriate heating treatment on the oil.
[0004] However, most existing oil filtration carts have the following shortcomings: some oil filtration carts do not have heating devices, and the filtration efficiency drops significantly in low-temperature environments or high-viscosity oil scenarios; some oil filtration carts are equipped with heaters, but they are mostly external structures, that is, the heater and the oil filtration cart are installed separately, and the oil needs to be led to the heater for heating through an additional connecting pipeline before returning to the oil filtration cart for filtration. Utility Model Content
[0005] The purpose of this utility model is to solve one of the problems pointed out in the background art, and to propose a heating component for an oil filter cart.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A heating assembly for an oil filtration cart includes a vehicle body with a heating pipe inside. The top surface of the vehicle body has a first connector and a second connector respectively connected to the two ends of the heating pipe. A coarse filter, an oil pump, and a fine filter are installed on the top surface of the vehicle body. The inlet of the coarse filter is connected to the outlet of the oil tank to be filtered, and the outlet is connected to the inlet of the oil pump. The outlet of the oil pump is connected to the first connector, the second connector is connected to the inlet of the fine filter, and the outlet of the fine filter is connected to the inlet of the oil tank to be filtered.
[0008] The vehicle body includes a lower shell and a cover plate. The lower shell has a slot with an open top. The cover plate can seal the slot, and the lower shell and the cover plate are fixed by a clamping lock. The heating tube is located in the slot. The coarse filter, oil pump, fine filter, first connector, and second connector are all located on the top surface of the cover plate.
[0009] The heating tube includes an S-shaped bent tube base. A thick film heating component or an electric heating wire is installed on the outer surface of the tube base. The inlet and outlet ends of the tube base are located on the same side and are arranged in parallel. A support seat is fixedly installed in the groove cavity. The two ends of the tube base are connected to a first connector and a second connector respectively through the support seat.
[0010] The support base is fixedly connected to a first drain pipe, a first inlet pipe, a second inlet pipe, and a second drain pipe. The first drain pipe and the first inlet pipe are connected through a first flow channel inside the support base, and the second inlet pipe and the second drain pipe are connected through a second flow channel inside the support base. The inlet end of the pipe base is sealed and fixed to the first drain pipe, and the outlet end of the pipe base is sealed and fixed to the second inlet pipe. The first inlet pipe and the second drain pipe are both vertically arranged. When the cover plate is installed, the first connector is sealed and connected to the first inlet pipe, and the second connector is connected to the second drain pipe.
[0011] The cover plate has an inlet step hole and an outlet step hole. The inlet step hole is connected to the first connector, and the outlet step hole is connected to the second connector. The end of the first inlet pipe is inserted into the inlet step hole, and a first sealing ring is sandwiched between the two. The end of the second outlet pipe is inserted into the outlet step hole, and a second sealing ring is sandwiched between the two.
[0012] The heating assembly also includes a first three-way valve and a second three-way valve. The inlet end of the first three-way valve is connected to the outlet of the oil pump. The first outlet end of the first three-way valve is connected to the first connector. The second outlet end of the first three-way valve is connected to the first inlet end of the second three-way valve. The first outlet end of the second three-way valve is connected to the inlet of the fine filter. The second connector is connected to the second inlet end of the second three-way valve.
[0013] The heating component for an oil filtration cart proposed in this utility model has the following advantages: the heating pipe is set inside the vehicle body and integrated with the vehicle body structure, which effectively improves the overall integrity of the equipment, avoids the additional connecting pipes required by the external heating structure, simplifies the overall structure, and the first connector and the second connector are located on the top surface of the vehicle body, which facilitates connection with the oil pump and fine filter above. This not only makes the arrangement of the upper components more compact and neat, but also avoids the heating pipe interfering with the installation position of other functional components, which is conducive to modular design. Attached Figure Description
[0014] Figure 1 This is a partial front view sectional structural diagram of the present invention;
[0015] Figure 2 This is a three-dimensional structural diagram of the heating tube of this utility model;
[0016] Figure 3This is a schematic diagram showing the connection relationship between the various components of this utility model;
[0017] Figure 4 This is a top view of the cover plate structure of this utility model.
[0018] In the diagram: 1. Coarse filter; 2. Oil pump; 3. Fine filter; 4. Cover plate; 5. Lifting ring; 6. Clamping lock; 7. Lower shell; 8. Tank cavity; 9. Vehicle body; 10. Heating pipe; 11. Support seat; 12. First drain pipe; 13. First inlet pipe; 14. First sealing ring; 15. Inlet step hole; 16. First connector; 17. Second inlet pipe; 18. Second drain pipe; 19. First three-way valve; 20. Second three-way valve; 21. Second connector; 22. Drain step hole. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0020] Reference Figures 1-4 A heating assembly for an oil filtration vehicle includes a vehicle body 9, with a heating pipe 10 inside the vehicle body 9. The top surface of the vehicle body 9 has a first connector 16 and a second connector 21 that are respectively connected to the two ends of the heating pipe 10. A coarse filter 1, an oil pump 2, and a fine filter 3 are installed on the top surface of the vehicle body 9. The inlet of the coarse filter 1 is connected to the outlet of the oil tank to be filtered, and the outlet is connected to the inlet of the oil pump 2. The outlet of the oil pump 2 is connected to the first connector 16, the second connector 21 is connected to the inlet of the fine filter 3, and the outlet of the fine filter 3 is connected to the inlet of the oil tank to be filtered.
[0021] The oil to be processed is introduced into the oil tank through the inlet of the coarse filter 1. It first undergoes preliminary filtration through the coarse filter 1 to remove larger particulate impurities. The filtered oil flows out from the outlet of the coarse filter 1 and enters the inlet of the oil pump 2. After the oil pump 2 starts, it pressurizes the oil and outputs it from the outlet of the oil pump 2, sending it to the first connector 16. The first connector 16 connects to a heating pipe 10 installed inside the vehicle body 9. After the oil is heated to a suitable temperature in the heating pipe 10, it flows out from the other end of the heating pipe 10 and is output through the second connector 21. The second connector 21 connects to the inlet of the fine filter 3. After entering the fine filter 3, the oil undergoes fine filtration to further remove small particles and residual impurities, and finally flows out from the outlet of the fine filter 3, returning to the oil tank.
[0022] The heating tube 10 is located inside the vehicle body 9 and integrated with the vehicle body structure, which effectively improves the overall integrity of the equipment, avoids the additional connecting pipes required by the external heating structure, and simplifies the overall structure. The first connector 16 and the second connector 21 are located on the top surface of the vehicle body 9, which facilitates connection with the oil pump 2 and the fine filter 3 above. This not only makes the arrangement of the upper components more compact and neat, but also avoids the heating tube 10 interfering with the installation position of other functional components, which is conducive to modular design.
[0023] The vehicle body 9 includes a lower shell 7 and a cover plate 4. The lower shell 7 has a cavity 8 with an open top. The cover plate 4 can cover the cavity 8, and the lower shell 7 and the cover plate 4 are fixed by a clamping lock 6. The heating tube 10 is located in the cavity 8. The coarse filter 1, oil pump 2, fine filter 3, first connector 16, and second connector 21 are all located on the top surface of the cover plate 4. The cover plate 4 is fixed with lifting rings 5 around its perimeter.
[0024] The vehicle body 9 consists of a lower shell 7 and a cover plate 4. The upper part of the lower shell 7 has an open cavity 8, which serves as the installation space for the heating pipe 10. The heating pipe 10 is arranged inside the cavity 8, enabling the oil to be heated without occupying upper space. The cover plate 4 is used to seal the cavity 8 and is reliably fixed to the lower shell 7 by a clamping latch 6, ensuring the overall sealing and structural stability of the machine.
[0025] The coarse filter 1, oil pump 2, fine filter 3, first connector 16, and second connector 21 are all centrally mounted on the top surface of the cover plate 4. This centralized arrangement avoids interference from the heating structure with the installation of other functional components, making the use of the upper space more efficient and neat. Lifting rings 5 are fixed around the cover plate 4, allowing for quick overall removal or installation during installation, maintenance, or transport, greatly improving the maintainability and ease of assembly of the equipment.
[0026] The heating tube 10 includes an S-shaped bent tube base. A thick film heating component or an electric heating wire is installed on the outer surface of the tube base. The inlet and outlet ends of the tube base are located on the same side and are arranged in parallel. A support seat 11 is fixedly installed in the groove cavity 8. The two ends of the tube base are connected to the first connector 16 and the second connector 21 respectively through the support seat 11. The support base 11 is fixedly connected to a first drain pipe 12, a first inlet pipe 13, a second inlet pipe 17, and a second drain pipe 18. The first drain pipe 12 and the first inlet pipe 13 are connected through a first flow channel inside the support base 11, and the second inlet pipe 17 and the second drain pipe 18 are connected through a second flow channel inside the support base 11. The inlet end of the pipe body is sealed and fixed to the first drain pipe 12, and the outlet end of the pipe body is sealed and fixed to the second inlet pipe 17. The first inlet pipe 13 and the second drain pipe 18 are both vertically arranged. When the cover plate 4 is installed, the first connector 16 is sealed and connected to the first inlet pipe 13, and the second connector 21 is connected to the second drain pipe 18.
[0027] The heating tube 10 has an S-shaped bend structure and is composed of a tube base. A thick-film heating element or heating wire is mounted on the outer surface of the heating tube 10 for heating the oil flowing through it. This S-shaped structure extends the heating path of the oil within a limited space, improving heating efficiency. The inlet and outlet ends of the heating tube 10 are arranged on the same side and parallel to each other, facilitating connection and layout.
[0028] The heating tube 10 is installed inside the tank cavity 8, and a support base 11 is fixedly installed inside the tank cavity 8. The support base 11 is used to support and position the heating tube 10 and to connect it to the upper piping system. The inlet end of the tube body is connected to the first drain pipe 12 by a sealing method, and the outlet end is connected to the second inlet pipe 17 by a sealing method to ensure that there is no leakage of oil during the flow of oil through the heating tube 10.
[0029] The support base 11 is also structurally fixed with a first drain pipe 12, a first inlet pipe 13, a second inlet pipe 17, and a second drain pipe 18. The support base 11 has two independent flow channels inside. The first drain pipe 12 and the first inlet pipe 13 are connected through the first flow channel inside the support base 11, and the second inlet pipe 17 and the second drain pipe 18 are connected through the second flow channel inside the support base 11. In this way, oil can enter the heating pipe 10 from the first drain pipe 12, be heated, and then output through the second inlet pipe 17, connecting to the first connector 16 and the second connector 21 on the upper part of the vehicle body 9 via the flow channel system of the support base 11.
[0030] The first inlet pipe 13 and the second outlet pipe 18 are both vertically arranged. When the cover plate 4 is installed, the first inlet pipe 13 can be directly inserted into the corresponding first connector 16 and a sealed connection can be achieved. The second outlet pipe 18 is also inserted and connected to the second connector 21. The entire connection process is completed at the same time as the cover plate 4 is installed, which simplifies the installation operation and improves the overall structure and sealing reliability.
[0031] The cover plate 4 has an inlet step hole 15 and a drain step hole 22. The inlet step hole 15 is connected to the first connector 16, and the drain step hole 22 is connected to the second connector 21. The end of the first inlet pipe 13 is inserted into the inlet step hole 15, and a first sealing ring 14 is sandwiched between the two. The end of the second drain pipe 18 is inserted into the drain step hole 22, and a second sealing ring is sandwiched between the two.
[0032] The cover plate 4 is provided with a fluid channel structure for connecting the internal heating structure of the vehicle body with the functional components on the top of the cover plate, specifically including a liquid inlet stepped hole 15 and a liquid outlet stepped hole 22. The liquid inlet stepped hole 15 communicates with the first connector 16 and is used to guide oil from the first connector 16 into the first liquid inlet pipe 13 below the cover plate 4. The liquid outlet stepped hole 22 communicates with the second connector 21 and is used to guide the heated oil from the second liquid outlet pipe 18 into the second connector 21.
[0033] The end of the first inlet pipe 13 is inserted into the inlet stepped hole 15, and a first sealing ring 14 is sandwiched between the inserted part and the hole wall to ensure a reliable seal at the contact point and prevent oil leakage. The end of the second drain pipe 18 is inserted into the drain stepped hole 22, and a second sealing ring is also provided between the inserted part and the hole wall to ensure a sealed connection with the second connector 21.
[0034] This sealed connection structure allows the first inlet pipe 13 to automatically seal with the first connector 16 and the second outlet pipe 18 to automatically seal with the second connector 21 while the cover plate 4 is being installed, greatly improving assembly efficiency and sealing reliability. The combination of stepped holes and sealing rings effectively absorbs installation tolerances and adapts to minor displacements or vibrations, further enhancing the stability and safety of the oil filtration vehicle during operation.
[0035] refer to Figure 3 The heating assembly also includes a first three-way valve 19 and a second three-way valve 20. The inlet end of the first three-way valve 19 is connected to the outlet of the oil pump 2. The first outlet end of the first three-way valve 19 is connected to the first connector 16. The second outlet end of the first three-way valve 19 is connected to the first inlet end of the second three-way valve 20. The first outlet end of the second three-way valve 20 is connected to the inlet of the fine filter 3. The second connector 21 is connected to the second inlet end of the second three-way valve 20.
[0036] When the heating function is selected, the first three-way valve 19 opens the first outlet channel. The oil flows into the heating tube 10 through the first connector 16 and is heated. It is then output from the second connector 21 and enters through the second inlet end of the second three-way valve 20, and is finally sent to the fine filter 3 for fine filtration.
[0037] When heating is not required, the first three-way valve 19 switches to the second outlet channel, and the oil directly enters through the first inlet end of the second three-way valve 20, bypasses the heating tube 10, and is directly sent to the fine filter 3 to achieve rapid filtration and extend the service and maintenance life of the heating tube.
[0038] Of course, those skilled in the art can add an intelligent control module to this solution, such as controlling the heating power of the heating tube through a controller, and setting temperature sensors and corresponding temperature controllers at both ends of the heating tube.
[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technical solution, concept, or design obtained by those skilled in the art by making equivalent substitutions or changes based on the technical solution and utility model concept disclosed in the present utility model should be included within the protection scope of the present utility model.
Claims
1. A heating assembly for an oil filtration vehicle, comprising a vehicle body (9), characterized in that, The vehicle body (9) has a heating pipe (10) inside. The top surface of the vehicle body (9) has a first connector (16) and a second connector (21) that are respectively connected to the two ends of the heating pipe (10). A coarse filter (1), an oil pump (2), and a fine filter (3) are installed on the top surface of the vehicle body (9). The inlet of the coarse filter (1) is connected to the outlet of the oil tank to be filtered, and the outlet is connected to the inlet of the oil pump (2). The outlet of the oil pump (2) is connected to the first connector (16), the second connector (21) is connected to the inlet of the fine filter (3), and the outlet of the fine filter (3) is connected to the inlet of the oil tank to be filtered.
2. The heating assembly for an oil filtration cart according to claim 1, characterized in that, The vehicle body (9) includes a lower shell (7) and a cover plate (4). The lower shell (7) has a slot (8) with an open top. The cover plate (4) can cover the slot (8), and the lower shell (7) and the cover plate (4) are fixed by a clamping buckle (6). The heating tube (10) is located in the slot (8). The coarse filter (1), oil pump (2), fine filter (3), first connector (16), and second connector (21) are all located on the top surface of the cover plate (4).
3. The heating assembly for an oil filtration cart according to claim 2, characterized in that, The heating tube (10) includes an S-shaped bent tube base. A thick film heating component or an electric heating wire is installed on the outer surface of the tube base. The inlet end and outlet end of the tube base are located on the same side and are arranged in parallel. A support seat (11) is fixedly installed in the groove (8). The two ends of the tube base are connected to the first connector (16) and the second connector (21) respectively through the support seat (11).
4. The heating assembly for an oil filtration cart according to claim 3, characterized in that, The support base (11) is fixedly connected to a first drain pipe (12), a first inlet pipe (13), a second inlet pipe (17), and a second drain pipe (18). The first drain pipe (12) and the first inlet pipe (13) are connected through a first flow channel inside the support base (11). The second inlet pipe (17) and the second drain pipe (18) are connected through a second flow channel inside the support base (11). The inlet end of the pipe body is sealed and fixed to the first drain pipe (12), and the outlet end of the pipe body is sealed and fixed to the second inlet pipe (17). The first inlet pipe (13) and the second drain pipe (18) are both vertically arranged. When the cover plate (4) is installed, the first connector (16) is sealed and connected to the first inlet pipe (13), and the second connector (21) is connected to the second drain pipe (18).
5. The heating assembly for an oil filtration cart according to claim 4, characterized in that, The cover plate (4) has an inlet step hole (15) and a drain step hole (22). The inlet step hole (15) is connected to the first connector (16), and the drain step hole (22) is connected to the second connector (21). The end of the first inlet pipe (13) is inserted into the inlet step hole (15), and a first sealing ring (14) is sandwiched between them. The end of the second drain pipe (18) is inserted into the drain step hole (22), and a second sealing ring is sandwiched between them.
6. A heating assembly for an oil filtration cart according to any one of claims 1-5, characterized in that, The heating assembly also includes a first three-way valve (19) and a second three-way valve (20). The inlet end of the first three-way valve (19) is connected to the outlet of the oil pump (2). The first outlet end of the first three-way valve (19) is connected to the first connector (16). The second outlet end of the first three-way valve (19) is connected to the first inlet end of the second three-way valve (20). The first outlet end of the second three-way valve (20) is connected to the inlet of the fine filter (3). The second connector (21) is connected to the second inlet end of the second three-way valve (20).
7. A heating assembly for an oil filtration cart according to any one of claims 2-5, characterized in that, The cover plate (4) is fixed with lifting rings (5) around its perimeter.