Fracturing flow-back fluid recycling device
By combining a motor-driven conical agitator blade with a blower to deliver gas, the problem of uneven mixing in fracturing flowback fluid treatment devices is solved, achieving more efficient mixing and filtration, ensuring stable equipment operation, and improving treatment efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-10
AI Technical Summary
Existing fracturing flowback fluid treatment devices suffer from uneven mixing during the mixing process, resulting in insufficient contact between the reagents and the flowback fluid, which affects the treatment effect.
The system uses a motor-driven rotating rod and conical stirring blades to create a liquid vortex. Combined with a blower delivering gas, this creates dispersed bubbles, enhancing the mixing effect. Impurities are filtered out through a screen to ensure stable operation of the equipment.
It improves the uniformity of mixing, prevents sedimentation, increases the gas-liquid contact area, ensures stable equipment operation, and improves the treatment effect.
Smart Images
Figure CN223980429U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fracturing flowback fluid treatment technology, and in particular to a fracturing flowback fluid recovery and treatment device. Background Technology
[0002] Fracturing flowback fluid refers to the liquid that is discharged back to the surface during fracturing operations in oil and gas fields as formation pressure is released. It contains fracturing fluid, formation water, and carried rock cuttings, suspended particles, and chemical additives. Due to its complex composition, direct discharge would pollute the environment, although it still contains recyclable water resources and chemical components. Therefore, fracturing flowback fluid needs to be treated to meet environmental discharge standards or reused in subsequent fracturing operations to reduce environmental impact and operating costs, and improve resource utilization.
[0003] Currently, various fracturing flowback fluid treatment and reuse devices are available on the market. These typically employ techniques such as sedimentation, filtration, chemical treatment, and membrane separation to remove suspended particles, dissolved salts, oils, and other contaminants from the flowback fluid, allowing for partial reuse in industrial production or compliance with emission standards. However, traditional treatment devices, which rely on a single motor-driven agitator during mixing, suffer from uneven agitation, resulting in insufficient contact between the reagents and the flowback fluid and affecting treatment effectiveness. Therefore, this paper proposes a fracturing flowback fluid recovery and treatment device to address these issues. Summary of the Invention
[0004] To overcome the above shortcomings, this utility model provides a fracturing flowback fluid recovery and treatment device, which aims to improve the problem of uneven mixing in the prior art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A fracturing flowback fluid recovery and treatment device includes a treatment tank, a tank cover on the top of the treatment tank, a stirring mechanism inside the treatment tank, a filtration mechanism on the top of the treatment tank, and an inlet pipe fixedly connected inside the tank cover.
[0007] The stirring mechanism includes a motor, which is fixedly connected to the top of the tank cover. A rotating rod is fixedly connected to the output end of the motor. A conical stirring blade is fixedly connected to the side wall of the rotating rod. An air inlet ring is fixedly connected to the outer wall of the processing tank. An air inlet pipe is fixedly connected inside the air inlet ring. A fan is fixedly connected to the side wall of the processing tank. The fan is connected to the air inlet ring. An air chamber is fixedly connected inside the processing tank. The air inlet pipe passes through the processing tank and the side wall of the air chamber and extends into the interior. A one-way valve is fixedly connected inside the air chamber.
[0008] As a further description of the above technical solution:
[0009] The filtration mechanism includes a processing box, which is fixedly connected to the top of the tank cover. A liquid inlet pipe is fixedly connected to the top of the tank cover. A filter box is slidably connected inside the processing box, and the filter box is sealed at the bottom by a filter screen.
[0010] As a further description of the above technical solution:
[0011] A sealing gasket is fixedly connected to the top of the filter box, and the sealing gasket is in contact with the internal partition of the treatment box.
[0012] As a further description of the above technical solution:
[0013] The processing box is equipped with a damping shaft inside, the inner ring of the damping shaft is fixedly connected to the inside of the processing box, and the outer ring of the damping shaft is fixedly connected to a baffle.
[0014] As a further description of the above technical solution:
[0015] The sidewall of the baffle is attached to the outside of the filter box for fixing it in place.
[0016] As a further description of the above technical solution:
[0017] The intake pipe and the one-way valve are both arranged in a ring array.
[0018] As a further description of the above technical solution:
[0019] A control valve is provided at the bottom of the tank cover, and a drain pipe is fixedly connected to the output end of the control valve.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, the rotating rod and conical stirring blade are driven by a motor to rotate, forming a liquid vortex, which enhances the mixing uniformity and prevents sedimentation. Air is delivered to the air ring by a blower and enters the treatment tank through the air inlet pipe and one-way valve. The air bubbles are quickly dispersed under the stirring action, which increases the gas-liquid contact area. The combination of the above structures improves the mixing effect.
[0022] 2. In this utility model, the backflow liquid enters the treatment tank through the filter screen to prevent larger particles from entering the treatment tank and ensure stable operation of the equipment. After long-term operation, the filter screen will intercept impurities, and particulate impurities will accumulate in the filter box. In order to maintain the normal operation of the equipment, the filter box needs to be cleaned regularly. During cleaning, the baffle is moved to separate it from the filter box, and the operator can take out the filter box for cleaning. After cleaning, the filter box is put back and the sealing gasket is correctly installed to avoid leakage of backflow liquid. Attached Figure Description
[0023] Figure 1This is a three-dimensional schematic diagram of a fracturing flowback fluid recovery and treatment device proposed in this utility model;
[0024] Figure 2 This is a schematic diagram of the processing tank of a fracturing flowback fluid recovery and treatment device proposed in this utility model;
[0025] Figure 3 This is a schematic diagram of the tank cover of a fracturing flowback fluid recovery and treatment device proposed in this utility model;
[0026] Figure 4 This is a schematic diagram of the processing tank of a fracturing flowback fluid recovery and treatment device proposed in this utility model.
[0027] Legend:
[0028] 1. Processing tank; 2. Tank cover; 3. Motor; 4. Rotating rod; 5. Conical stirring blade; 6. Inflating ring; 7. Air inlet pipe; 8. Fan; 9. Air chamber; 10. Check valve; 11. Liquid inlet pipe one; 12. Processing box; 13. Liquid inlet pipe two; 14. Filter box; 15. Filter screen; 16. Sealing gasket; 17. Damping shaft; 18. Baffle. Detailed Implementation
[0029] 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.
[0030] Reference Figures 1-3This utility model provides an embodiment of a fracturing flowback fluid recovery and treatment device, comprising a treatment tank 1, a tank cover 2 on the top of the treatment tank 1, a stirring mechanism inside the treatment tank 1 for fully stirring the ion treatment agent and fracturing flowback fluid, a filtration mechanism on the top of the treatment tank 1 for removing impurities and improving liquid purity, and an inlet pipe 11 fixedly connected inside the tank cover 2; the stirring mechanism includes a motor 3, which is fixedly connected to the top of the tank cover 2, and a rotating rod 4 is fixedly connected to the output end of the motor 3; conical stirring blades 5 are fixedly connected to the side wall of the rotating rod 4 to enhance liquid flowability and improve mixing effect. An inflation ring 6 is fixedly connected to the outer wall, and an air inlet pipe 7 is fixedly connected inside the inflation ring 6 to provide a channel for gas delivery and ensure inflation stability. A blower 8 is fixedly connected to the side wall of the treatment tank 1 and is connected to the inflation ring 6. An air chamber 9 is fixedly connected inside the treatment tank 1 to temporarily store gas and improve inflation stability. The air inlet pipe 7 passes through the side walls of the treatment tank 1 and the air chamber 9 and extends into the interior. A one-way valve 10 is fixedly connected inside the air chamber 9 to prevent gas backflow and ensure unidirectional gas flow. The air inlet pipe 7 and the one-way valve 10 are arranged in a ring array. A control valve is provided at the bottom of the tank cover 2, and a drain pipe is fixedly connected to the output end of the control valve.
[0031] After the ion treatment agent and fracturing flowback fluid are fed into the treatment tank 1, the motor 3 drives the rotating rod 4 to rotate, which in turn drives the conical stirring blade 5 to rotate. The conical stirring blade 5 can form a vortex in the liquid, making the liquid inside the treatment tank 1 flow. This not only enhances the mixing uniformity of the liquid, but also effectively prevents the accumulation of precipitates and ensures the stability of the treatment effect. At the same time, the blower 8 is started to deliver air into the air ring 6. The air enters the air chamber 9 along the air inlet pipe 7, and then enters the treatment tank 1 through the one-way valve 10. Under the action of the one-way valve 10, the airflow can only enter the treatment tank 1 in one direction, avoiding the risk of gas and liquid backflow. When the air enters the liquid, under the stirring action of the conical stirring blade 5, the bubbles are quickly dispersed to form a small and uniform bubble group. This not only increases the gas-liquid contact area, but also accelerates the dissolution or reaction rate of certain components in the liquid, enhances the mixing effect, and thus improves the treatment effect.
[0032] Reference Figures 3-4 The filtration mechanism includes a processing box 12, which is fixedly connected to the top of the tank cover 2. An inlet pipe 13 is fixedly connected to the top of the tank cover 2. A filter box 14 is slidably connected inside the processing box 12. The filter box 14 is sealed at the bottom by a filter screen 15 to block impurities. A sealing gasket 16 is fixedly connected to the top of the filter box 14. The sealing gasket 16 is in contact with the internal partition of the processing box 12. A damping shaft 17 is provided inside the processing box 12. The inner ring of the damping shaft 17 is fixedly connected to the inside of the processing box 12. A baffle 18 is fixedly connected to the outer ring of the damping shaft 17. The side wall of the baffle 18 is attached to the outside of the filter box 14 for fixing it.
[0033] When using this equipment, the fracturing flowback pipe must first be connected to the inlet pipe 13 to ensure that the fracturing flowback fluid can enter the equipment for processing. After connection, the fracturing flowback fluid will enter the equipment through the filter screen 15. During this process, the filter screen 15 will filter out impurities in the flowback fluid. The filter screen 15 can effectively block larger impurities, preventing them from entering the processing tank 1 and affecting subsequent mixing and processing, thereby ensuring the stable operation of the equipment. After the equipment has been running for a long time, as the filter screen 15 continuously intercepts impurities, particulate impurities will gradually accumulate inside the filter box 14. In order to ensure the normal operation of the equipment, the filter box 14 needs to be cleaned regularly. During the cleaning operation, the baffle 18 is moved, and the baffle 18 rotates through the damping shaft 17, gradually separating it from the filter box 14. After the baffle 18 is completely separated from the filter box 14, the operator can pull the filter box 14 out of the treatment box 12 and clean it. After the cleaning is completed, the filter box 14 is put back into the treatment box 12, and the sealing gasket 16 is placed between the partition of the treatment box 12 and the filter box 14 to ensure the sealing of the treatment box 12 and prevent backflow leakage.
[0034] Working principle: When using this equipment, first connect the fracturing flowback pipe to the inlet pipe 13. When the fracturing flowback fluid passes through the filter screen 15, the filter screen 15 will block the impurity particles in the fracturing flowback fluid, preventing them from entering the processing tank 1 and affecting the subsequent mixing process. Then, the ion treatment agent is sent into the processing tank 1 through the inlet pipe 11. At this time, the motor 3 is started to drive the rotating rod 4 to rotate, which in turn drives the conical stirring blade 5 to move, mixing the liquid in the processing tank 1. During the mixing process, the blower 8 is started to inflate the air ring 6, and the air is sent into the air chamber 9 through the air inlet pipe 7. Finally, the air passes through the one-way valve 10. The mixture enters the processing tank 1 and, with the help of the conical stirring blades 5, improves the mixing effect. After processing, the treated fracturing flowback fluid is discharged by opening the control valve. After the equipment has been used for a long time, the impurities in the filter box 14 can be processed. By moving the baffle 18, it is rotated by the damping shaft 17. When the baffle 18 separates from the filter box 14, the filter box 14 can be pulled out from the processing tank 12 for cleaning. After cleaning, the filter box 14 is put back into the processing tank 12, and the sealing gasket 16 is placed between the partition of the processing tank 12 and the filter box 14 to ensure the sealing of the processing tank 12 for subsequent use.
[0035] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A fracturing flowback fluid recovery treatment device, comprising a treatment tank (1), characterized in that: The processing tank (1) top is provided with tank cover (2), the processing tank (1) inside is provided with stirring mechanism, the processing tank (1) top is provided with filter mechanism, the tank cover (2) inside fixedly connected with liquid inlet pipe one (11); The stirring mechanism includes motor (3), the motor (3) is fixedly connected on the top of tank cover (2), the output end of motor (3) is fixedly connected with rotating rod (4), the side wall of rotating rod (4) is fixedly connected with conical stirring blade (5), the outer wall of processing tank (1) is fixedly connected with aeration ring (6), the inside of aeration ring (6) is fixedly connected with air inlet pipe (7), the side wall of processing tank (1) is fixedly connected with fan (8), the fan (8) is connected with aeration ring (6), the inside of processing tank (1) is fixedly connected with air storehouse (9), the air inlet pipe (7) penetrates processing tank (1) and extends to the inside of side wall of air storehouse (9), the inside of air storehouse (9) is fixedly connected with check valve (10).
2. The fracturing flowback fluid recovery treatment device according to claim 1, characterized in that: The filter mechanism includes processing box (12), the processing box (12) is fixedly connected on the top of tank cover (2), the top of tank cover (2) is fixedly connected with liquid inlet pipe two (13), the inside of processing box (12) is slidably connected with filter box (14), the filter box (14) is sealed by filter screen (15) at the bottom.
3. The fracturing flowback fluid recovery treatment device according to claim 2, characterized in that: The top of filter box (14) is fixedly connected with sealing gasket (16), the sealing gasket (16) is attached to the inside partition of processing box (12).
4. The fracturing flowback fluid recovery treatment device according to claim 2, characterized in that: The inside of processing box (12) is provided with damping rotating shaft (17), the inner ring of damping rotating shaft (17) is fixedly connected in the inside of processing box (12), the outer ring of damping rotating shaft (17) is fixedly connected with baffle (18).
5. The fracturing flowback fluid recovery treatment device according to claim 4, characterized in that: The side wall of baffle (18) is attached to the outside of filter box (14), for fixing.
6. The fracturing flowback fluid recovery treatment device according to claim 1, characterized in that: The air inlet pipe (7) and check valve (10) are both arranged in annular array.
7. The fracturing flowback fluid recovery treatment device according to claim 1, characterized in that: The bottom of tank cover (2) is provided with control valve, the output end of control valve is fixedly connected with liquid outlet pipe.