An impurity filtering device for oil exploitation
By combining rotating components and suspended filter components, multi-stage filtration and impurity removal are achieved in oil extraction impurity filtration devices, solving the problem of mesh clogging caused by a single filtration method, and improving filtration efficiency and oil quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANCHANG OIL FIELD
- Filing Date
- 2025-10-20
- Publication Date
- 2026-07-24
AI Technical Summary
Existing oil extraction impurity filtration devices use a single filtration method in actual use, which leads to easy clogging of the mesh, affecting filtration efficiency and oil extraction rate.
By employing a combined rotating assembly and a suspended filter assembly, multi-stage filtration of oil is achieved. The flowability is improved by stirring with an agitator, and impurities are cleared by a power source that drives a sprocket and chain drive to avoid clogging.
This technology enables multi-stage filtration of oil, improving filtration efficiency and oil quality, extending the service life of the equipment, preventing mesh clogging, and enhancing the maintenance efficiency of the equipment.
Smart Images

Figure CN224541130U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of petroleum extraction technology, specifically to an impurity filtration device for petroleum extraction. Background Technology
[0002] Petroleum is one of the main targets of geological exploration. It is a viscous, dark brown liquid, often referred to as the "blood of industry." Petroleum is stored in some areas of the upper crust. Its main components are a mixture of various alkanes, cycloalkanes, and aromatic hydrocarbons. Petroleum extraction refers to the act of digging and extracting petroleum from places where it is stored. During the extraction process, oil and gas flow from the reservoir to the bottom of the well and then rise from the bottom of the well to the wellhead. When petroleum is first extracted, it contains sand and gravel, which must be filtered out during the oil processing.
[0003] For example, a petroleum extraction impurity filtration device with announcement number CN212757591U includes a tank body. The upper surface of the tank body is provided with a cover plate. A motor is fixedly connected to the upper surface of the cover plate. The output shaft of the motor is fixedly connected to a rotating shaft. The end of the rotating shaft away from the motor passes through the upper cover plate and extends into the interior of the tank body. A stirring blade is fixedly connected to the side surface of the rotating shaft. This device solves the problems of existing petroleum impurity filtration devices, such as slow filtration time, small amount of petroleum adhering to the surface of the filtered impurities, and low petroleum extraction rate.
[0004] Most of the existing technologies mentioned above improve the overall structure. However, while existing oil extraction impurity filtration devices have solved the problem of slow filtration time, they usually only perform one filtration operation on the oil in actual use. This filtration method is relatively simple. Moreover, the different sizes of mud and sand contained in the oil can easily cause the mesh to become clogged when facing the same type of filter screen, affecting the normal use of the device. Utility Model Content
[0005] The purpose of this invention is to provide an impurity filtration device for oil extraction, so as to solve the problem that the existing impurity filtration devices for oil extraction have a relatively simple oil filtration method in actual use, as mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a petroleum extraction impurity filtration device, comprising a filter-type protective structure, wherein a combined rotating assembly is disposed inside the filter-type protective structure, and a suspended filter assembly is threadedly installed on the top of the filter-type protective structure; the suspended filter assembly includes a top cover, and the internal structure of the suspended filter assembly cooperates with the internal structure of the filter-type protective structure to facilitate multi-stage filtration of petroleum and improve petroleum quality; the combined rotating assembly includes a rotating rod, which rotates in conjunction with the internal structure of the combined rotating assembly and the internal structure of the filter-type protective structure to quickly clean impurities within the device.
[0007] Furthermore, the filter-type protective structure includes a protective shell, four support legs are fixedly installed on the lower part of the protective shell, and a first filter frame is fixedly installed inside the protective shell.
[0008] Furthermore, a gear and a sprocket are rotatably mounted on the lower part of the protective shell.
[0009] Furthermore, a bracket is fixedly installed at the bottom of the protective shell, a blocking tube is fixedly installed above the bracket, and a connecting tube is fixedly installed at the side end of the protective shell.
[0010] Furthermore, a rotating rod is rotatably installed inside the blocking tube, and a sealing plate is fixedly installed above the rotating rod, with the sealing plate fitting against the inner wall of the blocking tube.
[0011] Furthermore, a sprocket is fixedly installed below the rotating rod, and the same chain is fitted on the outer surface of both sprockets.
[0012] Furthermore, a rotating disk is rotatably mounted on the outer surface of the blocking tube, a gear ring is fixedly mounted below the rotating disk, the gear ring meshes with a gear, and two stirring rods are fixedly mounted above the rotating disk.
[0013] Furthermore, two fixed handles are fixedly installed on the top of the cap, and a threaded ring is installed on the internal thread of the cap.
[0014] Furthermore, a second filter frame is fixedly installed below the threaded ring, and a fixing ring is fixedly installed below the second filter frame.
[0015] Compared with the prior art, the beneficial effects of this utility model are: This oil extraction system employs an impurity filtration device. The second filter screen filters and blocks larger impurities in the oil, while the stirring rod works in conjunction with the first filter screen to filter fine impurities. This allows the system to classify the oil during use, thus preventing impurities from clogging the system and affecting its filtration efficiency. Furthermore, the power source drives the sprocket to rotate, which in turn drives the rotating rod and the sealing plate to rotate inside the blocking tube. This opens the opening at the top of the blocking tube, allowing impurities blocked in the second filter screen to enter the blocking tube. This makes it easier to clean the impurities inside the device during use, thereby improving the device's maintenance efficiency and enhancing its performance. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the protective shell structure of this utility model; Figure 3 This utility model Figure 1 Bottom structure diagram; Figure 4 This is a schematic diagram of the filter-type protective structure of this utility model; Figure 5 This is a schematic diagram of the combined rotating assembly structure of this utility model; Figure 6 This is a schematic diagram of the suspended filter assembly structure of this utility model.
[0017] In the diagram: 1. Filter-type protective structure; 11. Protective shell; 12. Support leg; 13. First filter screen frame; 14. Blocking tube; 15. Gear; 16. Sprocket; 17. Chain; 18. Bracket; 19. Connecting tube; 2. Combined rotating assembly; 21. Rotating rod; 22. Sealing plate; 23. Toothed ring; 24. Rotating disk; 25. Stirring rod; 3. Suspended filter assembly; 31. Top cover; 32. Fixed handle; 33. Second filter screen frame; 34. Fixed ring; 35. Threaded ring. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] Example 1: Please refer to Figures 1-6A petroleum extraction impurity filtration device is disclosed to address the problem of limited filtration effectiveness in existing petroleum extraction impurity filtration devices. The device includes a filter-type protective structure 1, with a combined rotating assembly 2 internally. A suspended filter assembly 3 is threadedly mounted on the top of the filter-type protective structure 1. The suspended filter assembly 3 includes a top cover 31. The internal structure of the suspended filter assembly 3 cooperates with the internal structure of the filter-type protective structure 1 to facilitate multi-stage filtration of petroleum and improve petroleum quality. The combined rotating assembly 2 includes a rotating rod 21, which rotates in conjunction with the internal structure of the filter-type protective structure 1 to quickly clean impurities within the device. Two fixed handles 32 are fixedly mounted on the top of the top cover 31. A threaded ring 35 is threaded inside the top cover 31. A second filter screen frame 33 is fixedly mounted below the threaded ring 35, and a fixed ring 34 is fixedly mounted below the second filter screen frame 33.
[0020] like Figures 1-6 As shown, the user introduces oil into the device through the opening above the cap 31. The oil first enters the second filter frame 33, where it undergoes primary filtration, blocking larger stones and allowing the oil and fine impurities to enter the device. Then, the user connects a power source below the gear 15, which drives the gear 15 to rotate, which in turn drives the gear ring 23 meshing with the gear 15. The rotation of the gear ring 23 drives the rotating disk 24 and stirring rod 25 above to rotate, causing the stirring rod 25 to agitate within the protective shell 11, increasing the fluidity of the oil within the device and facilitating its passage through the first filter frame 13 for secondary filtration. Finally, a delivery pipe is connected to one side of the connecting pipe 19, allowing the filtered oil to be discharged into the device through the connecting pipe 19. This allows the device to conveniently perform multi-stage filtration of oil during use, thereby improving oil quality, reducing repeated filtration operations, and increasing filtration efficiency.
[0021] Example 2: Figures 1-5The technical solution shown, based on Embodiment 1, further discloses, in order to solve the problem that existing impurity filtration devices used in oil extraction are inconvenient to clean internal impurities during use: a filter-type protective structure 1 includes a protective shell 11, four support legs 12 fixedly installed at the bottom of the protective shell 11, a first filter screen frame 13 fixedly installed inside the protective shell 11, a gear 15 rotatably installed at the bottom of the protective shell 11, a sprocket 16 rotatably installed at the bottom of the protective shell 11, a bracket 18 fixedly installed at the bottom of the protective shell 11, and a blocking pipe fixedly installed above the bracket 18. 14. A connecting pipe 19 is fixedly installed on the side end of the protective shell 11. A rotating rod 21 is rotatably installed inside the blocking pipe 14. A sealing plate 22 is fixedly installed above the rotating rod 21. The sealing plate 22 is in contact with the inner wall of the blocking pipe 14. A sprocket 16 is fixedly installed below the rotating rod 21. The outer surfaces of the two sprockets 16 are fitted with the same chain 17. A rotating disk 24 is rotatably installed on the outer surface of the blocking pipe 14. A toothed ring 23 is fixedly installed below the rotating disk 24. The toothed ring 23 meshes with the gear 15. Two stirring rods 25 are fixedly installed above the rotating disk 24.
[0022] like Figures 1-5 As shown, after using the device for a period of time, the user first stops introducing oil into the device and waits for the oil to be filtered. Then, the user connects a power source below the sprocket 16 under the protective shell 11. The power source drives the sprocket 16 to rotate, which in turn drives the chain 17 to rotate the rotating rod 21 inside the blocking tube 14. When the rotating rod 21 rotates, it drives the upper sealing plate 22 to rotate, so that the sealing plate 22 overlaps with the upper inner wall of the blocking tube 14, thus creating an opening at the top of the blocking tube 14. Since the fixing ring 34 is a ring structure, larger impurities filtered out will fall through the opening at the top of the blocking tube 14 into the blocking tube 14 and then fall out from the bottom opening of the blocking tube 14. Then, the user holds the fixing handle 32 and rotates the top cover 31 to separate the suspended filter assembly 3 from the top of the filter protective structure 1. Water is poured into the protective shell 11 and stirred with the stirring rod 25 to clean the inside of the device. This makes it easy to clean the device after use, thereby extending the service life of the device and preventing clogging during use.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. An impurity filtration device for oil extraction, comprising a filter-type protective structure (1), wherein a combined rotating assembly (2) is provided inside the filter-type protective structure (1), and a suspended filter assembly (3) is threadedly installed on the top of the filter-type protective structure (1). Its features are: The suspended filter assembly (3) includes a top cover (31). The internal structure of the suspended filter assembly (3) is combined with the internal structure of the filter protection structure (1) to facilitate multi-stage filtration of oil and improve oil quality. The combined rotating assembly (2) includes a rotating rod (21). The combined rotating assembly (2) rotates in conjunction with the internal structure of the filter-type protective structure (1) to quickly clean impurities inside the device.
2. The impurity filtration device for oil extraction according to claim 1, characterized in that: The filter-type protective structure (1) includes a protective shell (11), four support legs (12) are fixedly installed on the bottom of the protective shell (11), and a first filter screen (13) is fixedly installed inside the protective shell (11).
3. The impurity filtration device for oil extraction according to claim 2, characterized in that: A gear (15) is rotatably mounted below the protective shell (11), and a sprocket (16) is rotatably mounted below the protective shell (11).
4. The impurity filtration device for oil extraction according to claim 3, characterized in that: A bracket (18) is fixedly installed below the protective shell (11), a blocking tube (14) is fixedly installed above the bracket (18), and a connecting tube (19) is fixedly installed on the side of the protective shell (11).
5. The impurity filtration device for oil extraction according to claim 4, characterized in that: A rotating rod (21) is rotatably installed inside the blocking tube (14), and a sealing plate (22) is fixedly installed above the rotating rod (21). The sealing plate (22) is in contact with the inner wall of the blocking tube (14).
6. The impurity filtration device for oil extraction according to claim 5, characterized in that: A sprocket (16) is fixedly installed below the rotating rod (21), and the same chain (17) is fitted on the outer surface of both sprockets (16).
7. The impurity filtration device for oil extraction according to claim 6, characterized in that: A rotating disk (24) is rotatably mounted on the outer surface of the blocking tube (14). A toothed ring (23) is fixedly mounted below the rotating disk (24). The toothed ring (23) meshes with the gear (15). Two stirring rods (25) are fixedly mounted above the rotating disk (24).
8. The impurity filtration device for oil extraction according to claim 1, characterized in that: Two fixed handles (32) are fixedly installed on the top of the cap (31), and a threaded ring (35) is installed on the internal thread of the cap (31).
9. The impurity filtration device for oil extraction according to claim 8, characterized in that: A second filter frame (33) is fixedly installed below the threaded ring (35), and a fixing ring (34) is fixedly installed below the second filter frame (33).
Citation Information
Patent Citations
Impurity filtering device for oil exploitation
CN212757591U