Centrifugal oil purifier
By introducing a collection box and a frustum-shaped baffle into the oil purifier, the problems of residual impurities and oil splashing in the oil purifier are solved, achieving convenient cleaning and efficient purification.
Patent Information
- Application Number
- CN202422878815.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-25
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-25
AI Technical Summary
The existing oil purifier has impurities remaining on the inner wall after operation, which is difficult to remove and the oil is easily splashed during the discharge process, resulting in inconvenient operation and oil waste.
An oil purifier with a collection box and a frustum-shaped baffle is designed. The collection box is used to collect impurities after centrifugation, and the frustum-shaped baffle prevents oil splashing. The oil purifier is combined with a motor-driven centrifugal turbine and a composite filter layer for purification.
It realizes convenient impurity removal and oil collection, reduces operation difficulty and oil waste, and improves purification efficiency and safety.
Smart Images

Figure CN223475254U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an oil purifier, and more particularly to a centrifugal oil purifier. Background Technology
[0002] An oil purifier is a mechanical device that filters solid impurities and moisture from oil, improving its performance. It can remove impurities in three states: moisture, solid particles, and gas, thereby improving the purity and quality of the oil. Oil purifiers are widely used in industries such as petroleum, chemical, power, and metallurgy to process various lubricating oils, transformer oils, and hydraulic oils. By using an oil purifier, the service life of equipment can be extended, production efficiency can be improved, and the safety and reliability of the oil during use can be ensured.
[0003] However, existing oil purifiers have the following shortcomings after operation:
[0004] 1. During the process of purifying oil using an oil purifier, impurities in the oil are thrown against the inner wall of the machine under the strong centrifugal force, thus remaining on the inner wall. In order to remove these impurities, staff have to use various tools, such as scrapers and scoops, to gradually remove these residual impurities. This operation is not only time-consuming and laborious, but also easily causes inconvenience to staff during the cleaning process, and it is also difficult to thoroughly clean the internal structure of the oil purifier.
[0005] Second, after the oil purifier completes the filtration process, the filtered pure oil will be discharged through the oil outlet. However, existing oil purifiers are prone to oil splashing during the oil discharge process. This splashing not only wastes oil but may also pollute the surrounding environment and equipment, increasing the difficulty of subsequent cleaning. Utility Model Content
[0006] To address the shortcomings of the aforementioned technologies, this utility model provides a centrifugal oil purifier.
[0007] To solve the above technical problems, the technical solution adopted by this utility model is: a centrifugal oil purifier, including an oil purification tank, a tank cover inserted into the upper end face of the oil purification tank, the tank cover is U-shaped, and an oil inlet is opened in the most concave part of the tank cover;
[0008] A motor is installed at the center of the bottom of the clean oil tank. The motor output shaft passes through the bottom surface of the clean oil tank to be connected to the centrifugal turbine via an upward bearing. A retaining ring is welded to the bottom of the inner cavity of the clean oil tank and is located outside the centrifugal turbine.
[0009] The clean oil tank contains a collection box, and a connector is welded to the bottom of the collection box for connecting to a centrifugal turbine. The upper end of the collection box has an opening corresponding to the oil inlet for filling with oil, and a second handle is symmetrically welded to the upper end of the collection box. A filter screen is fitted inside the collection box to filter out clean oil, and an oil outlet is provided at the bottom of the collection box for the filtered oil to enter the clean oil tank.
[0010] The bottom side of the clean oil tank is connected to an oil outlet pipe for oil discharge. The oil inlet end of the oil outlet pipe is connected to the inside of the clean oil tank. A baffle is fixedly installed on the outside of the oil outlet end of the oil outlet pipe to prevent splashing when the oil is discharged. The baffle is shaped like a frustum.
[0011] The bottom of the clean oil tank has several support legs welded at equal intervals along the circumference.
[0012] Furthermore, a first handle is symmetrically welded to the upper end of the can lid for controlling the lid.
[0013] Furthermore, the filter screen is a composite filter layer, which includes a coarse filter layer and a fine filter layer, with the fine filter layer bonded below the coarse filter layer.
[0014] Furthermore, a valve is installed at the front end of the oil outlet pipe to control the oil output.
[0015] Furthermore, the diameter of the oil inlet in the can lid is smaller than the opening diameter of the upper end face of the collection box to ensure that the oil completely enters the inside of the collection box.
[0016] Furthermore, the upper surface of the fixing ring is set as an inclined surface to abut the bottom of the receiving box.
[0017] This utility model discloses a centrifugal oil purifier, which has the following beneficial effects:
[0018] 1. By setting a collection box inside the clean oil tank and a motor at the bottom of the clean oil tank, and placing the centrifugal turbine at the bottom of the clean oil tank cavity, with the lower end of the centrifugal turbine connected to the motor and the upper end connected to the collection box, impurities in the oil are separated into the collection box during centrifugal oil purification. After the oil purification is completed, the operator can remove the collection box to clean it. This replaces the existing method of using tools to remove impurities from the clean oil tank, making the operation more convenient and achieving better cleaning results.
[0019] Second, by installing a frustum-shaped baffle at the oil outlet of the oil pipe, the existing straight pipe oil outlet design is replaced. When the oil is discharged, there is a reaction force when the liquid comes into contact with the bottom, which makes it easy to splash upward and then make a parabolic trajectory. The frustum-shaped baffle can block the splashing of oil to a certain extent, reducing the waste of oil and reducing the difficulty of subsequent cleaning. Attached Figure Description
[0020] Figure 1This is a schematic diagram of the overall structure of this utility model.
[0021] Figure 2 This is a side view of the present invention.
[0022] Figure 3 This is a front sectional view of the present invention.
[0023] Figure 4 for Figure 3 Enlarged view of section A.
[0024] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of this utility model.
[0025] In the diagram: 1. Clean oil tank; 2. First handle; 3. Second handle; 4. Tank lid; 5. Oil inlet; 6. Collection box; 7. Support leg; 8. Motor; 9. Centrifugal turbine; 10. Fixing ring; 11. Filter screen; 12. Coarse filter layer; 13. Fine filter layer; 14. Oil outlet pipe; 15. Valve; 16. Baffle. Detailed Implementation
[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0027] Example 1:
[0028] Figure 1-4 The centrifugal oil purifier shown includes an oil purification tank 1. A tank cover 4 is inserted into the upper end face of the oil purification tank 1. The tank cover 4 is U-shaped, and an oil inlet 5 is opened at the most concave part of the tank cover 4. The inner side of the U-shaped part is set as an inclined surface. When some oil is outside the oil inlet 5, some oil can fall into the oil inlet 5 along the inclined surface.
[0029] The upper end of the can lid 4 is symmetrically welded with a first handle 2. The operator can easily insert and remove the can lid 4 through the first handle 2 to take out the internal structure and clean the internal structure. At the same time, it is convenient to clean and maintain the inside of the clean oil tank 1.
[0030] A motor 8 is installed at the center of the bottom of the clean oil tank 1. The output shaft of the motor 8 passes through the bottom surface of the clean oil tank 1 to be used for the upward bearing connection of the centrifugal turbine 9. A fixing ring 10 is welded to the bottom of the inner cavity of the clean oil tank 1 and is located outside the centrifugal turbine 9.
[0031] Inside the clean oil tank 1 is a collection box 6. A connector is welded to the bottom of the collection box 6 for connecting the centrifugal turbine 9. An opening is provided on the upper end of the collection box 6 corresponding to the oil inlet 5 for filling with oil. A second handle 3 is symmetrically welded to the upper end of the collection box 6. A filter screen 11 is attached to the inside of the collection box 6 for filtering out clean oil. An oil outlet is provided at the bottom of the collection box 6 for the filtered oil to enter the clean oil tank 1.
[0032] The diameter of the oil inlet 5 in the can lid 4 is smaller than the opening diameter of the upper end face of the collection box 6. At the same time, the inner side of the inclined surface of the can lid 4 tightly abuts against the upper end face of the collection box 6, forming a sealed state. This ensures that the oil can completely and smoothly enter the interior of the collection box 6, reducing oil waste. It also ensures that oil that has not been centrifuged and filtered does not enter the clean oil tank 1, thus improving the efficiency of oil purification.
[0033] The upper end face of the fixing ring 10 is set as an inclined surface to abut the bottom end of the receiving box 6; when the collecting box 6 is inserted into the centrifugal turbine 9, the upper end face of the fixing ring 10 is in contact with the bottom end of the collecting box 6, so that the lower part of the clean oil tank 1 is a closed annular cavity; the filtered oil flows from the bottom outlet of the collecting box 6 into the lower annular cavity of the clean oil tank 1.
[0034] An oil outlet pipe 14 is connected to the bottom side of the clean oil tank 1 for oil discharge. The inlet end of the oil outlet pipe 14 connects to the inside of the clean oil tank 1, corresponding to the annular cavity at the bottom of the clean oil tank 1. A baffle 16 is fixedly installed on the outside of the oil outlet end of the oil outlet pipe 14 to prevent splashing during oil discharge. The baffle 16 is shaped like a frustum. By installing a frustum-shaped baffle 16 at the oil outlet of the oil outlet pipe 14, the traditional straight pipe oil outlet design is replaced. In actual use, when liquid flows out of the oil outlet and touches the bottom, a reaction force is generated, which often causes the liquid to splash upward. The splashed liquid will form a parabolic trajectory under the action of gravity and eventually scatter into the surrounding environment. However, by introducing the frustum-shaped baffle 16, this splashing phenomenon can be effectively blocked to a certain extent. This baffle 16 design allows the liquid to be guided and dispersed when it comes into contact with the baffle 16, thereby reducing oil waste. Furthermore, since the splashing phenomenon has been effectively controlled, the subsequent cleaning work has become simpler and easier, greatly reducing maintenance costs and labor intensity.
[0035] A valve 15 is installed at the front end of the oil outlet pipe 14, which can precisely control and regulate the amount of oil flowing out of the oil outlet pipe 14. By adjusting the opening of the valve 15, the operator can effectively control the oil outlet speed, ensuring that the oil flows out at an appropriate rate, thereby meeting different usage requirements and safety standards, and improving the controllability of the oil outlet process.
[0036] The bottom of the clean oil tank 1 is welded with several support legs 7 at equal intervals along the circumference.
[0037] Example 2:
[0038] Figure 5In the centrifugal oil purifier shown, the filter screen 11 is configured as a composite filter layer, which includes a coarse filter layer 12 and a fine filter layer 13. The diameter of the coarse filter layer 12 and the diameter of the fine filter layer 13 are the same, and the volume of the coarse filter layer 12 and the fine filter layer 13 are also the same. The outer periphery of the coarse filter layer 12 and the outer periphery of the fine filter layer 13 are fitted with mounting shells of the same specifications, which increases the stability and durability of the filter screen 11 and facilitates installation and replacement. An adhesive is applied to the lower surface of the mounting shell on the coarse filter layer 12 to bond the mounting shell on the fine filter layer 13. By setting the filter screen 11 in a multi-layer structure, impurities of different sizes can be removed gradually and effectively.
[0039] In summary, the second embodiment in this specification mainly describes the differences from the first embodiment. The same or similar parts between the first embodiment and other embodiments can be referred to each other.
[0040] The usage process of this utility model:
[0041] 1. Pour the oil into the collection box 6 through the oil inlet 5. Since the collection box 6 is equipped with a filter screen 11, the oil that has not been centrifugally filtered will not flow out from the oil outlet in a short time.
[0042] 2. Turn on motor 8. At this time, motor 8 drives centrifugal turbine 9 to rotate, and centrifugal turbine 9 drives collection box 6 to rotate. At this time, impurities in the oil are thrown onto the inner wall of collection box 6 under the action of centrifugal force.
[0043] 3. Set the time, and after the motor 8 has been working for the specified time period, turn off the motor 8; let it stand for a period of time to allow the oil after centrifugation to undergo secondary filtration through the filter screen 11.
[0044] 4. Place an oil receiving tank below the oil outlet pipe 14; open valve 15 and control the opening and closing size of valve 15 according to the required flow rate and velocity.
[0045] 5. After the oil discharge is complete, close valve 15;
[0046] 6. Clean and maintain the oil purifier; manually pull the first handle 2 to open the can lid 4, pull the second handle 3 to take out the collection box 6, the operator removes and cleans the impurities inside the collection box 6, and cleans the inside of the clean oil tank 1. After the collection box 6 and the inside of the clean oil tank 1 are dry, put the collection box 6 and the can lid 4 in sequence to complete the cleaning and maintenance of the oil purifier.
[0047] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.
Claims
1. A centrifugal oil purifier, comprising an oil purification tank (1), characterized in that: A lid (4) is inserted into the upper end of the clean oil tank (1). The lid (4) is U-shaped, and an oil inlet (5) is opened in the most concave part of the lid (4). A motor (8) is installed at the center of the bottom of the clean oil tank (1). The output shaft of the motor (8) passes through the bottom surface of the clean oil tank (1) to be used for the upward bearing connection of the centrifugal turbine (9). A fixing ring (10) is welded to the bottom of the inner cavity of the clean oil tank (1). The fixing ring (10) is located outside the centrifugal turbine (9). Inside the clean oil tank (1) is a collection box (6). A connector is welded to the bottom of the collection box (6) for connecting the centrifugal turbine (9). An opening is provided on the upper end of the collection box (6) corresponding to the oil inlet (5) for filling with oil. A second handle (3) is symmetrically welded to the upper end of the collection box (6). A filter screen (11) is attached to the inside of the collection box (6) for filtering out clean oil. An oil outlet is provided at the bottom of the collection box (6) for the filtered oil to enter the clean oil tank (1). The bottom side of the clean oil tank (1) is connected to an oil outlet pipe (14) for oil discharge. The oil inlet end of the oil outlet pipe (14) is connected to the inside of the clean oil tank (1). A baffle (16) is fixedly installed on the outside of the oil outlet end of the oil outlet pipe (14) to prevent splashing when the oil is discharged. The baffle (16) is in the shape of a frustum. The bottom of the clean oil tank (1) is welded with several support legs (7) at equal intervals along the circumference.
2. The centrifugal oil purifier according to claim 1, characterized in that: The upper end face of the can lid (4) is symmetrically welded with a first handle (2) for controlling the can lid (4).
3. The centrifugal oil purifier according to claim 1, characterized in that: The filter screen (11) is a composite filter layer, which includes a coarse filter layer (12) and a fine filter layer (13). The fine filter layer (13) is bonded to the bottom of the coarse filter layer (12).
4. The centrifugal oil purifier according to claim 1, characterized in that: A valve (15) is installed at the front end of the oil outlet pipe (14) to control the oil output.
5. The centrifugal oil purifier according to claim 1, characterized in that: The diameter of the oil inlet (5) in the can lid (4) is smaller than the opening diameter of the upper end face of the collection box (6) to ensure that the oil completely enters the collection box (6).
6. The centrifugal oil purifier according to claim 1, characterized in that: The upper surface of the fixing ring (10) is set as an inclined surface to abut the bottom of the receiving box (6).