Emulsifier production filtering device for oil-based drilling fluid

Abstract

The utility model discloses an emulsifier production filter device for oil-based drilling fluid, which comprises a filter cartridge, a liquid inlet pipe is arranged at a water inlet at the upper end of the filter cartridge, a liquid outlet pipe is arranged at a water outlet at the lower end of the filter cartridge, a filter cartridge is arranged in the filter cartridge, and the emulsifier production filter device further comprises a rotating mechanism; the rotating mechanism comprises an upper rotating disc, an inserting groove and a lower rotating disc, the upper rotating disc is rotationally connected to the upper end of the interior of the filter cartridge through a first sealing bearing, the inner arc face of the upper rotating disc is rotationally connected with the outer arc face of the liquid inlet pipe through a second sealing bearing, and the inserting groove is formed in the lower surface of the upper rotating disc. While it is guaranteed that the filter cartridge is convenient to disassemble and assemble, liquid washes the interior of the filter cartridge through rotation of the filter cartridge, the probability that the filter cartridge is blocked is reduced, the influence of filter residues on the filtering efficiency is reduced, the filter cartridge cleaning frequency is reduced, and the production efficiency of the emulsifier for the oil-based drilling fluid is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil-based drilling fluid technology, specifically to a filter device for producing emulsifiers for oil-based drilling fluids. Background Technology

[0002] Oil-based drilling fluids are drilling fluid systems with oil as the continuous phase. Their main components include oil, water, organic clay, and oil-soluble chemical treatment agents. Oil-based drilling fluids are primarily used in specialized wells, such as coring or complex directional wells, due to their strong inhibition and high-temperature stability, which makes them perform well under these complex conditions. During the production of oil-based drilling fluids, in the process of producing emulsifiers, filtration devices are needed to purify the emulsion and improve its quality. In existing technologies, when filtering emulsifiers for oil-based drilling fluids, the emulsion solution to be purified is filtered through filter paper or activated carbon filters to remove impurities. With increased filtration, the filter components need to be disassembled and cleaned periodically. However, in some filtration devices, filter residue accumulates directly on the surface of the filter components during use, leading to a high probability of clogging and requiring frequent cleaning. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a filtration device for the production of emulsifiers for oil-based drilling fluids. While ensuring that the filter cartridge is easy to disassemble and assemble, the rotation of the filter cartridge allows the liquid to flush the inside of the filter cartridge, reducing the probability of filter cartridge blockage, reducing the frequency of filter cartridge cleaning, and improving the efficiency of the production of emulsifiers for oil-based drilling fluids. This can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a filter device for producing emulsifiers for oil-based drilling fluids, comprising a filter cylinder, wherein an inlet pipe is provided at the upper inlet of the filter cylinder, an outlet pipe is provided at the lower outlet of the filter cylinder, and a filter cartridge is provided inside the filter cylinder, characterized in that: it further comprises a rotating mechanism;

[0005] Rotating mechanism: It includes an upper turntable, a slot, and a lower turntable. The upper turntable is rotatably connected to the upper end of the filter cylinder via a sealed bearing. The inner arc surface of the upper turntable is rotatably connected to the outer arc surface of the inlet pipe via a sealed bearing. The lower surface of the upper turntable is provided with a slot. The lower turntable is rotatably connected to the lower end of the filter cylinder via a sealed bearing. The filter cylinder is threaded into the threaded hole in the middle of the lower turntable. The upper end of the filter cylinder is inserted into the slot. While ensuring convenient disassembly and assembly of the filter cylinder, the rotation of the filter cylinder allows the liquid to flush the inside of the filter cylinder, reducing the probability of filter cylinder blockage, reducing the impact of filter residue on filtration efficiency, reducing the frequency of filter cylinder cleaning, and improving the efficiency of oil-based drilling fluid emulsifier production.

[0006] Furthermore, a microcontroller is provided at the lower end of the outer arc surface of the filter cartridge. The input terminal of the microcontroller is electrically connected to an external power source to control the start and stop of the entire device.

[0007] Furthermore, the rotating mechanism also includes inserts, which are respectively disposed on the top wall of the slot. The inserts are inserted into the insertion holes on the upper surface of the filter cartridge to restrict the relative rotation between the filter cartridge and the upper turntable.

[0008] Furthermore, the rotating mechanism also includes a sealing gasket, which is disposed on the top wall of the slot to seal between the filter cartridge and the upper turntable.

[0009] Furthermore, the rotating mechanism also includes an external gear ring, a gear, and a rotating column. The external gear ring is disposed on the outer arc surface of the upper turntable. A motor is disposed on the upper surface of the filter cylinder. A rotating column is disposed at the lower end of the output shaft of the motor. A gear is disposed at the lower end of the rotating column. The gear meshes with the external gear ring. The input end of the motor is electrically connected to the output end of the microcontroller to provide power for the rotation of the upper turntable.

[0010] Furthermore, the inner arc surface of the filter cartridge is provided with spiral blades to guide the flow of liquid and concentrate the filter residue at the lower end of the filter cartridge.

[0011] Furthermore, a pressure sensor is installed inside the conical guide ring at the lower end of the filter cartridge, and a pressure sensor is connected in series in the middle of the liquid inlet pipe. The output terminals of pressure sensor one and pressure sensor two are electrically connected to the input terminal of the microcontroller to detect the pressure at the inlet and outlet of the filter cartridge and determine the degree of filter residue blockage.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This oil-based drilling fluid emulsifier production filtration device has the following advantages:

[0013] While ensuring easy disassembly and assembly of the filter cartridge, the rotation of the filter cartridge allows the liquid to flush the inside of the filter cartridge, reducing the probability of filter cartridge clogging, minimizing the impact of filter residue on filtration efficiency, reducing the frequency of filter cartridge cleaning, and improving the efficiency of emulsifier production for oil-based drilling fluids. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the overall device of this utility model, viewed from the front and in cross-section.

[0016] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0017] Figure 4 This is a structural schematic diagram of the exploded cross-section of the overall device of this utility model.

[0018] In the diagram: 1. Filter cartridge, 2. Outlet pipe, 3. Inlet pipe, 4. Filter cartridge, 5. Rotating mechanism, 51. Upper turntable, 52. Slot, 53. Lower turntable, 54. Insert post, 55. Sealing gasket, 56. External gear ring, 57. Gear, 58. Rotating column, 6. Spiral blade, 7. Motor, 8. Microcontroller, 9. Pressure sensor one, 10. Pressure sensor two. 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. 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.

[0020] Please see Figure 1-4 This embodiment provides a technical solution: a filtration device for producing emulsifiers for oil-based drilling fluids, including a filter cylinder 1, which provides space for filtering the emulsifier. An inlet pipe 3 is provided at the upper inlet of the filter cylinder 1 to facilitate the entry of the emulsifier into the filter cylinder 1. An outlet pipe 2 is provided at the lower outlet of the filter cylinder 1 to facilitate the discharge of the filtered emulsifier from the filter cylinder 1. A filter cartridge 4 is provided inside the filter cylinder 1 to filter the emulsifier and purify it. A microcontroller 8 is provided at the lower end of the outer arc surface of the filter cylinder 1. The input terminal of the microcontroller 8 is electrically connected to an external power source to control the start and stop of the entire device. A pressure sensor 9 is provided inside the conical guide ring at the lower end of the filter cylinder 1. A pressure sensor 10 is connected in series in the middle of the inlet pipe 3. The output terminals of the pressure sensors 9 and 10 are electrically connected to the input terminal of the microcontroller 8 to detect the water pressure at the inlet and outlet of the filter cylinder 1 and determine the degree of blockage inside the filter cartridge 4. The device is characterized by further including a rotating mechanism 5.

[0021] Rotating mechanism 5 includes an upper turntable 51, a slot 52, and a lower turntable 53. The upper turntable 51 is rotatably connected to the upper end of the filter cylinder 1 via a sealed bearing 1. The inner arc surface of the upper turntable 51 is rotatably connected to the outer arc surface of the inlet pipe 3 via a sealed bearing 2. The lower surface of the upper turntable 51 is provided with a slot 52. The lower turntable 53 is rotatably connected to the lower end of the filter cylinder 1 via a sealed bearing 3. The filter cylinder 4 is threaded into the threaded hole in the middle of the lower turntable 53. The upper end of the filter cylinder 4 is inserted into the slot 52. When the upper turntable 51 rotates, it drives the filter cylinder 4 and the lower turntable 53 to rotate, causing the emulsifier to move relative to the filter cylinder 4. The emulsifier is used to flush the inside of the filter cylinder 4, causing the filter residue to detach from the inner wall of the filter cylinder 4. The rotating mechanism 5 also includes insertion posts 54, which are respectively set on the top wall of the slot 52. The insertion posts 54 are inserted into the insertion holes on the upper surface of the filter cylinder 4, restricting the relative movement of the filter cylinder 4 and the upper turntable 51. For rotation, the rotating mechanism 5 also includes a sealing gasket 55, which is set on the top wall of the slot 52 to seal between the upper turntable 51 and the filter cartridge 4. The rotating mechanism 5 also includes an external gear ring 56, a gear 57 and a rotating column 58. The external gear ring 56 is set on the outer arc surface of the upper turntable 51. The upper surface of the filter cartridge 1 is provided with a motor 7. The lower end of the output shaft of the motor 7 is provided with a rotating column 58. The lower end of the rotating column 58 is provided with a gear 57. The gear 57 is meshed with the external gear ring 56. The input end of the motor 7 is electrically connected to the output end of the microcontroller 8. When the motor 7 is started, the output shaft of the motor 7 drives the rotating column 58 and the gear 57 to rotate. Through the meshing connection between the gear 57 and the external gear ring 56, the external gear ring 56 drives the upper turntable 51 to rotate, providing power for the rotation of the upper turntable 51. The inner arc surface of the filter cartridge 4 is provided with a spiral blade 6 to guide the direction of liquid movement, so that the liquid carries the filter cake to the lower end of the filter cartridge 4.

[0022] The working principle of the filtration device for producing emulsifiers for oil-based drilling fluids provided by this utility model is as follows: During the production of emulsifiers for oil-based drilling fluids, the emulsifier enters the filter cylinder 1 through the inlet pipe 3. After being filtered by the filter cylinder 4, the emulsifier is purified and finally discharged from the outlet pipe 2. During the emulsifier filtration process, pressure sensor 9 detects the water pressure at the outlet, and pressure sensor 10 detects the water pressure at the inlet. The microcontroller 8 compares the water pressure at the inlet and outlet. When the water pressure difference is large, it indicates that the filter residue inside the filter cylinder 4 is blocked. At this time, the microcontroller 8 starts the motor 7. The output shaft of machine 7 drives the rotating column 58 and gear 57 to rotate. Through the meshing connection between gear 57 and external gear ring 56, the external gear ring 56 drives the upper rotating disk 51 to rotate. The insertion post 54 is inserted into the insertion hole on the upper surface of the filter cartridge 4 to restrict the relative rotation between the filter cartridge 4 and the upper rotating disk 51. The upper rotating disk 51 drives the filter cartridge 4 and the lower rotating disk 53 to rotate. The emulsifier moves relative to the filter cartridge 4 and uses the emulsifier to flush the inside of the filter cartridge 4, so that the filter cake is separated from the inner wall of the filter cartridge 4 and concentrated at the lower end of the filter cartridge 4 under the guidance of the spiral blade 6, reducing the impact of the filter cake on the filtration efficiency and reducing the cleaning frequency of the filter cartridge 4.

[0023] It is worth noting that the microcontroller 8 disclosed in the above embodiments can be a PIC16F1823-I / P model microcontroller, while the motor 7, pressure sensor 1 9, and pressure sensor 2 10 can be freely configured according to the actual application scenario. The motor 7 can be an HC-KFS model servo motor, and both pressure sensor 1 9 and pressure sensor 2 10 can be DJYL-SX model pressure transmitters. The microcontroller 8 controls the operation of the motor 7, pressure sensor 1 9, and pressure sensor 2 10 using methods commonly used in the prior art.

[0024] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A filtration device for producing emulsifiers for oil-based drilling fluids, comprising a filter cylinder (1), wherein an inlet pipe (3) is provided at the upper inlet of the filter cylinder (1), an outlet pipe (2) is provided at the lower outlet of the filter cylinder (1), and a filter cylinder (4) is provided inside the filter cylinder (1), characterized in that: It also includes a rotating mechanism (5); Rotating mechanism (5): It includes an upper turntable (51), a slot (52) and a lower turntable (53). The upper turntable (51) is rotatably connected to the upper end of the filter cylinder (1) through a sealing bearing. The inner arc surface of the upper turntable (51) is rotatably connected to the outer arc surface of the liquid inlet pipe (3) through a sealing bearing. The lower surface of the upper turntable (51) is provided with a slot (52). The lower turntable (53) is rotatably connected to the lower end of the filter cylinder (1) through a sealing bearing. The filter cylinder (4) is threaded into the screw hole in the middle of the lower turntable (53). The upper end of the filter cylinder (4) is inserted into the slot (52).

2. The filtration device for producing emulsifiers for oil-based drilling fluids according to claim 1, characterized in that: The filter cylinder (1) has a microcontroller (8) at the lower end of its outer arc surface, and the input end of the microcontroller (8) is electrically connected to an external power source.

3. The filtration device for producing emulsifiers for oil-based drilling fluids according to claim 1, characterized in that: The rotating mechanism (5) also includes inserts (54), which are respectively disposed on the top wall of the slot (52) and are inserted into the insertion holes on the upper surface of the filter cartridge (4).

4. The filtration device for producing emulsifiers for oil-based drilling fluids according to claim 1, characterized in that: The rotating mechanism (5) also includes a sealing gasket (55) disposed on the top wall of the slot (52).

5. The filtration device for producing emulsifiers for oil-based drilling fluids according to claim 2, characterized in that: The rotating mechanism (5) also includes an external gear ring (56), a gear (57) and a rotating column (58). The external gear ring (56) is disposed on the outer arc surface of the upper turntable (51). A motor (7) is provided on the upper surface of the filter cylinder (1). A rotating column (58) is provided at the lower end of the output shaft of the motor (7). A gear (57) is provided at the lower end of the rotating column (58). The gear (57) meshes with the external gear ring (56). The input end of the motor (7) is electrically connected to the output end of the microcontroller (8).

6. The filtration device for producing emulsifiers for oil-based drilling fluids according to claim 1, characterized in that: The inner arc surface of the filter cartridge (4) is provided with spiral blades (6).

7. The filtration device for producing emulsifiers for oil-based drilling fluids according to claim 2, characterized in that: The filter cartridge (1) has a pressure sensor 1 (9) inside the conical guide ring at the lower end, and a pressure sensor 2 (10) is connected in series in the middle of the liquid inlet pipe (3). The output ends of the pressure sensor 1 (9) and the pressure sensor 2 (10) are electrically connected to the input end of the microcontroller (8).

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