Integrated oilfield produced water treatment device

Abstract

The utility model discloses an integrated oilfield oil production sewage treatment device, including filter jar, the upper end of filter jar is fixed with protection box, one side in protection box is fixed with fixed column, one side of fixed column is installed with hydraulic telescopic mechanism, the one side sliding connection of fixed column has mounting bracket, be installed with rotating equipment on mounting bracket, the upper end of rotating equipment is connected in the lower extreme of hydraulic telescopic mechanism, the lower extreme of rotating equipment is connected with rotating rod, the lower extreme of rotating rod penetrates through the lateral wall of filter jar and extends to filter jar. The utility model discloses through rotation and lifting linkage, realizes dynamic filtration, and the problem of filter screen blockage is alleviated significantly, and the filtration efficiency and stability are promoted, and the problem of the low efficiency of the frequent blockage in oilfield sewage treatment is solved successfully, and the service life of filter screen is prolonged simultaneously, and the compact structure is convenient for installation, and can be expanded according to the processing scale, and is applicable to different oil well field.

Description

Technical Field

[0001] This utility model relates to the field of oilfield wastewater treatment technology, and in particular to an integrated oilfield wastewater treatment device. Background Technology

[0002] As my country's oilfield development enters the middle and late stages, the water content in produced fluids continues to rise. In some oilfields, the water content of produced water has reached over 90%. If a large amount of produced water is discharged directly without treatment, it will cause serious pollution to the ecological environment. At the same time, substandard reinjection water quality can also cause blockage of the oil layer and reduce the oilfield recovery rate.

[0003] The current problems facing oilfield wastewater treatment are as follows: 1. Frequent clogging: Wastewater often contains impurities such as crude oil, suspended particles, silt, and polymers, which easily adhere to the surface of filtration equipment, causing filter screen clogging and reducing treatment efficiency; 2. Low filtration efficiency: Traditional static filtration equipment is difficult to handle wastewater with high impurity content, resulting in slow filtration speed and low efficiency; To address these issues, we propose an integrated oilfield wastewater treatment device. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an integrated oilfield wastewater treatment device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An integrated oilfield wastewater treatment device includes a filter tank. A protective box is fixed to the upper end of the filter tank. A fixed column is fixed to one side of the protective box. A hydraulic telescopic mechanism is installed on one side of the fixed column. A mounting frame is slidably connected to one side of the fixed column. A rotating device is installed on the mounting frame. The lower end of the hydraulic telescopic mechanism is connected to the upper end of the rotating device. A rotating rod is connected to the lower end of the rotating device. The lower end of the rotating rod penetrates the side wall of the filter tank and extends into the filter tank. A bearing frame is fixed to the lower end of the rotating rod. A first filter screen, a second filter screen, and a third filter screen are installed at equal intervals along the vertical direction within the bearing frame.

[0006] Preferably, the hydraulic telescopic mechanism includes a fixed frame fixed to one side of the fixed column, a hydraulic cylinder is mounted on the fixed frame, and the piston rod of the hydraulic cylinder passes through the fixed frame and extends to the lower end of the fixed frame.

[0007] Preferably, a guide rail is fixed to one side of the fixed column, a slider is installed on the guide rail, and one end of the mounting bracket is fixed to one side of the slider.

[0008] Preferably, the rotating device includes a reducer fixed to one side of the mounting frame, a drive motor connected to one side of the reducer, the upper end of the rotating rod connected to the reducer, the end of the piston rod of the hydraulic cylinder fixed to the upper end of the reducer by a connecting plate, and an opening provided on one side of the protective box, through which the drive motor passes.

[0009] Preferably, the lower end of the filter tank is connected to a conical conveying head, and the lower end of the conical conveying head is connected to a discharge pipe.

[0010] Preferably, an inlet pipe is connected to one side of the upper end of the filter tank.

[0011] Preferably, a cover is installed on one side of the filter tank.

[0012] In this utility model, when in use: 1. Wastewater input stage: Oily wastewater enters the filter tank through the inlet pipe. A protective box is installed at the top of the filter tank to protect the critical internal components from the influence of the external environment. 2. Filtration system startup phase: The drive motor drives the rotating rod to rotate through the reducer, which in turn drives the carrier frame to rotate. At the same time, the hydraulic cylinder controls the carrier frame to move up and down through the fixed frame and the mounting frame. The carrier frame is equipped with a first filter screen, a second filter screen and a third filter screen to achieve multi-stage fine filtration. 3. Dynamic filtering stage: The combined rotation and lifting motion creates dynamic shear force between the filter screens, effectively preventing impurities from adhering and reducing clogging. The multi-stage filter screens are arranged in descending order of pore size to ensure that everything from large particles to fine suspended solids is effectively intercepted. During rotation, the surface of the filter screen is constantly washed by the water flow, which plays a self-cleaning role. The hydraulic cylinder and drive motor are connected to the PLC control system to realize remote monitoring and automatic adjustment, and support intelligent functions such as fault self-diagnosis and operation status feedback, reducing the frequency of manual intervention. 4. Settling and Discharge Stage: After filtration, the wastewater enters the bottom of the filter tank and is collected through the conical conveyor head to the discharge pipe for discharge. The conical structure helps solid particles settle and concentrate, improving discharge efficiency. If maintenance is required, the internal cleaning or filter screen replacement can be performed by opening the cover.

[0013] This utility model has the following advantages: 1. Dynamic filtration is achieved through rotation and lifting linkage, which significantly alleviates filter clogging problems and improves filtration efficiency and stability; 2. The first, second, and third filter screens form a gradient filtration system to adapt to the removal needs of impurities of different particle sizes. The multi-layer structure ensures that the treated water meets the standards and extends the service life of the filter screens. 3. It integrates multiple functional modules such as filtration, stirring, lifting, and discharge into one compact structure, is easy to install, and can be flexibly expanded according to the processing scale, making it suitable for different oil well sites; In summary, this utility model achieves dynamic filtration through rotation and lifting linkage, significantly alleviating the problem of filter screen clogging, improving filtration efficiency and stability, successfully solving the problems of frequent clogging and low efficiency in oilfield wastewater treatment, while extending the service life of the filter screen. It has a compact structure, is easy to install, and can be flexibly expanded according to the treatment scale, making it suitable for different oil well sites. Attached Figure Description

[0014] Figure 1 This is a structural diagram of the internal structure of the protective box of this utility model; Figure 2 This is a diagram of the external structure of the present invention; Figure 3 A structural diagram of the filter screen of this utility model.

[0015] In the diagram: 1. Fixed frame, 2. Fixed column, 3. Slider, 4. Filter tank, 5. Conical conveyor head, 6. Guide rail, 7. Hydraulic cylinder, 8. Mounting bracket, 9. Reducer, 10. Drive motor, 11. Rotating rod, 12. Discharge pipe, 13. First filter screen, 14. Second filter screen, 15. Third filter screen, 16. Opening, 17. Inlet pipe, 18. Protective box, 19. Bearing frame, 20. Cover. Detailed Implementation

[0016] 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.

[0017] Reference Figure 1-3 An integrated oilfield wastewater treatment device includes a filter tank 4, which serves as the core container for the entire wastewater treatment process, used to contain and treat oily wastewater. A protective box 18 is fixed to the upper end of the filter tank 4. The protective box 18 is located at the upper end of the filter tank 4 and is used to protect key mechanical and electrical components from external environmental influences, such as rainwater, dust, and corrosive gases. A fixing post 2 is fixed to one side inside the protective box 18. The fixing post 2 is fixed to one side inside the protective box 18 and serves as the supporting foundation for the entire mechanical structure. A hydraulic telescopic mechanism is installed on one side of the fixed column 2. A mounting frame 8 is slidably connected to one side of the fixed column 2. A rotating device is installed on the mounting frame 8. The lower end of the hydraulic telescopic mechanism is connected to the upper end of the rotating device. The lower end of the rotating device is connected to a rotating rod 11. The rotating rod 11 connects the reducer and the bearing frame and is the key transmission component for realizing the rotation function. The lower end of the rotating rod 11 penetrates the side wall of the filter tank 4 and extends into the filter tank 4. A support frame 19 is fixed to the lower end of the rotating rod 11. The support frame 19 is installed at the end of the rotating rod 11 and is used to support the multi-stage filter screen. The first filter screen 13, the second filter screen 14 and the third filter screen 15 are installed at equal intervals along the vertical direction inside the support frame 19. The multi-stage filter screen includes the first filter screen 13, the second filter screen 14 and the third filter screen 15, which are used to achieve multi-stage fine filtration. The hydraulic telescopic mechanism includes a fixed frame 1 fixed to one side of the fixed column 2, a hydraulic cylinder 7 installed on the fixed frame 1, and the piston rod of the hydraulic cylinder 7 passing through the fixed frame 1 and extending to the lower end of the fixed frame 1. The hydraulic telescopic mechanism includes the fixed frame 1 and the hydraulic cylinder 7, and is used to realize the lifting control of the load-bearing frame 19. A guide rail 6 is fixed on one side of the fixed column 2, and a slider 3 is installed on the guide rail 6. One end of the mounting bracket 8 is fixed to one side of the slider 3, and the mounting bracket 8 is slidably connected to the guide rail 6 to facilitate the up and down movement of the load-bearing frame. The rotating device includes a reducer 9 fixed to one side of the mounting frame 8, a drive motor 10 connected to one side of the reducer 9, the upper end of the rotating rod 11 connected to the reducer 9, the end of the piston rod of the hydraulic cylinder 7 fixed to the upper end of the reducer 9 through a connecting plate, an opening 16 is provided on one side of the protective box 18, and the drive motor 10 passes through the opening 16. The rotating device consists of a reducer 9 and a drive motor 10, which are used to drive the rotating rod 11 and the bearing frame 19 to rotate. The drive motor 10 drives the rotating rod 11 to rotate via the reducer 9, thereby driving the support frame 19 to rotate. At the same time, the hydraulic cylinder 7 realizes the up and down lifting of the support frame through the fixed frame 1 and the mounting frame 8, forming a compound motion. The drive motor 10 adopts a variable frequency speed control motor, which can automatically adjust the speed according to the water volume to achieve energy-saving operation. The hydraulic cylinder 7 adopts a closed-loop control hydraulic system to ensure that the lifting process is smooth and precise. The lower end of the filter tank 4 is connected to a conical conveying head 5, and the lower end of the conical conveying head 5 is connected to a discharge pipe 12. The conical conveying head 5 and the discharge pipe 12 are used to collect and discharge the filtered wastewater. The upper end of the filter tank 4 is connected to an inlet pipe 17, which is the sewage inlet. A cover 20 is installed on one side of the filter tank 4. The cover 20 is used for maintenance and replacement of the filter screen. The combined motion of rotation and lifting creates dynamic shear force between the filter screens, effectively preventing impurities from adhering and reducing clogging. The multi-stage filter screens are arranged in descending order of pore size to ensure that everything from large particles to fine suspended solids is effectively intercepted. Dynamic shear force: Under the combined action of rotation and up-and-down motion, the water flow forms eddies and shear force on the filter screen surface, which helps to flush away the deposits on the filter screen surface and achieve a "self-cleaning" effect. Multi-stage filtration principle: The first filter screen 13 is used to intercept large particles of debris (such as sand and metal shavings), the second filter screen 14 is used to intercept medium suspended solids (such as oil residue and colloids), and the third filter screen 15 is used to intercept fine particles and some oil droplets to achieve deep purification. In this utility model, when in use: 1. Wastewater input stage: Oily wastewater enters the filter tank 4 through the inlet pipe 17. The filter tank 4 is equipped with a protective box 18 at the top to protect the internal critical components from the influence of the external environment. 2. Filtration system startup phase: The drive motor 10 drives the rotating rod 11 to rotate through the reducer 9, which in turn drives the support frame 19 to rotate. At the same time, the hydraulic cylinder 7 controls the support frame to move up and down through the fixed frame 1 and the mounting frame 8. The support frame 19 is equipped with a first filter screen 13, a second filter screen 14, and a third filter screen 15 to achieve multi-stage fine filtration. 3. Dynamic filtering stage: The combined rotation and lifting motion creates dynamic shear force between the filter screens, effectively preventing impurities from adhering and reducing clogging. The multi-stage filter screens are arranged in descending order of pore size to ensure that everything from large particles to fine suspended solids is effectively intercepted. During rotation, the surface of the filter screen is constantly washed by the water flow, which plays a self-cleaning role. The hydraulic cylinder and drive motor are connected to the PLC control system to realize remote monitoring and automatic adjustment, and support intelligent functions such as fault self-diagnosis and operation status feedback, reducing the frequency of manual intervention. 4. Settling and Discharge Stage: After filtration, the wastewater enters the bottom of the filter tank and is collected by the conical conveyor head 5 and discharged through the discharge pipe 12. The conical structure helps solid particles settle and concentrate, improving discharge efficiency. If maintenance is required, the internal cleaning or filter screen replacement can be performed by opening the cover 20.

[0018] Application scenarios of this utility model: Oilfield wastewater treatment; Oilfield reinjection water pretreatment; Oilfield produced fluid separation and treatment; Industrial oily wastewater treatment.

[0019] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An integrated oilfield wastewater treatment device, comprising a filter tank (4), characterized in that, The upper end of the filter tank (4) is fixed with a protective box (18). A fixed column (2) is fixed on one side of the protective box (18). A hydraulic telescopic mechanism is installed on one side of the fixed column (2). A mounting frame (8) is slidably connected to one side of the fixed column (2). A rotating device is installed on the mounting frame (8). The lower end of the hydraulic telescopic mechanism is connected to the upper end of the rotating device. A rotating rod (11) is connected to the lower end of the rotating device. The lower end of the rotating rod (11) penetrates the side wall of the filter tank (4) and extends into the filter tank (4). A bearing frame (19) is fixed to the lower end of the rotating rod (11). A first filter screen (13), a second filter screen (14), and a third filter screen (15) are installed at equal intervals along the vertical direction in the bearing frame (19).

2. The integrated oilfield wastewater treatment device according to claim 1, characterized in that: The hydraulic telescopic mechanism includes a fixed frame (1) fixed to one side of the fixed column (2), and a hydraulic cylinder (7) is installed on the fixed frame (1). The piston rod of the hydraulic cylinder (7) passes through the fixed frame (1) and extends to the lower end of the fixed frame (1).

3. The integrated oilfield wastewater treatment device according to claim 1, characterized in that: A guide rail (6) is fixed to one side of the fixed column (2), and a slider (3) is installed on the guide rail (6). One end of the mounting bracket (8) is fixed to one side of the slider (3).

4. An integrated oilfield wastewater treatment device according to claim 2, characterized in that: The rotating device includes a reducer (9) fixed on one side of the mounting frame (8), a drive motor (10) connected to one side of the reducer (9), the upper end of the rotating rod (11) connected to the reducer (9), the piston rod end of the hydraulic cylinder (7) fixed to the upper end of the reducer (9) by a connecting plate, and an opening (16) provided on one side of the protective box (18), through which the drive motor (10) passes.

5. An integrated oilfield wastewater treatment device according to claim 1, characterized in that: The lower end of the filter tank (4) is connected to a conical conveying head (5), and the lower end of the conical conveying head (5) is connected to a discharge pipe (12).

6. The integrated oilfield wastewater treatment device according to claim 1, characterized in that: The filter tank (4) is connected to an inlet pipe (17) on one side of its upper end.

7. An integrated oilfield wastewater treatment device according to claim 1, characterized in that: A cover (20) is installed on one side of the filter tank (4).

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