Efficient fracturing flow-back fluid recycling device
By adopting an intermittent dosing method and structural design, the problem of uneven drug distribution was solved, achieving uniform drug distribution and energy saving, and improving the efficiency of the fracturing reverse flow fluid recycling device.
Patent Information
- Application Number
- CN202520340011.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-02-28
AI Technical Summary
Traditional continuous dosing methods result in uneven distribution of chemicals in the mixing tank during the fracturing reverse flow fluid recycling process, with local concentrations being too high or too low, affecting chemical utilization and increasing energy and costs.
An intermittent dosing method is adopted. Through structures such as cams, linkage rods, linkage plates, sliding columns, and springs, the agent is intermittently injected into the mixing tank through the dosing pipe when the stirring shaft rotates. Combined with knobs and threaded rods to adjust the agent dosing strategy, uniform distribution of the agent in the mixing tank is achieved.
It improves the mixing effect and utilization rate of the agents, saves energy and costs, and avoids agent waste by precisely controlling the amount and time interval of agent input.
Smart Images
Figure CN223915290U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fracturing reverse flow fluid recycling technology, specifically a high-efficiency fracturing reverse flow fluid recycling device. Background Technology
[0002] Fracturing flowback fluid is a liquid produced during oil extraction. It contains many valuable components, but also some harmful substances. By recycling and treating this liquid, resources can be reused and the environment can be protected. During recycling, workers often mix the pretreated flowback fluid with an appropriate amount of chemical agents and stir it thoroughly with a stirrer to promote the chemical reaction between the agents and the flowback fluid.
[0003] In the process of mixing chemical agents, traditional continuous dosing methods can only continuously add agents to the mixing tank at a constant rate, which can easily lead to uneven distribution of agents in the mixing tank. This can result in local concentrations that are too high or too low. Too high a concentration can cause adverse reactions or waste agents, while too low a concentration cannot achieve the expected mixing effect, thus affecting the utilization rate of agents, leading to unnecessary waste, and increasing energy and costs.
[0004] Therefore, we propose a high-efficiency fracturing reverse flow fluid recycling device to solve the above problems. Utility Model Content
[0005] To address the shortcomings of existing technologies, this invention provides a high-efficiency fracturing reverse flow fluid recycling device, which solves the problems mentioned in the background section.
[0006] The objective of this utility model can be achieved through the following technical solutions:
[0007] A high-efficiency fracturing reverse flow fluid circulation and recovery device includes a mixing tank, a dosing pipe is fixedly connected to the upper end of the mixing tank, a storage tank is fixedly connected to the upper end of the dosing pipe, a partition is fixedly connected inside the dosing pipe, the partition has a leakage hole, and baffles are symmetrically attached to the lower end of the partition, and the baffles are all slidably connected to the dosing pipe.
[0008] As a further embodiment of this utility model: the baffle is rotatably connected to a connecting rod on the side outside the dosing tube, and a horizontal plate is rotatably connected between the two connecting rods on the side away from the baffle. A support column is slidably connected through the horizontal plate, and the support column is fixedly connected to the outer surface of the dosing tube. A spring is sleeved on the outer surface of the support column, one end of the spring is fixedly connected to the side wall of the horizontal plate, and the other end of the spring is fixedly connected to the outer surface of the dosing tube.
[0009] As a further embodiment of this utility model: one of the baffles is provided with a sealing groove on one side inside the dosing tube, and the other baffle is fixedly connected with a sealing strip on one side inside the dosing tube, and the sealing strip and the sealing groove are interlocked with each other.
[0010] As a further embodiment of this utility model: symmetrical sliding columns are slidably connected through the horizontal plate, and a linkage plate is fixedly connected between the lower ends of the two sliding columns. A linkage rod is fixedly connected at the center of the linkage plate on the side away from the dosing tube.
[0011] As a further embodiment of this utility model: a support frame is fixedly connected to the upper end face of the mixing box, a drive motor is fixedly connected to the upper end face of the support frame, a stirring shaft is fixedly connected to the output end of the drive motor, the stirring shaft is rotatably connected to the mixing box, a cam is fixedly connected to the outer surface of the stirring shaft, and the linkage rod is initially in contact with the outer surface of the cam.
[0012] As a further embodiment of this utility model: a connecting plate is fixedly connected between the upper ends of the two sliding columns, and a threaded rod is threadedly connected through the center of the connecting plate. The threaded rod is rotatably connected to the upper surface of the horizontal plate, and a knob is fixedly connected to the upper end of the threaded rod.
[0013] The beneficial effects of this utility model are:
[0014] 1. Through the design of cams, linkage rods, linkage plates, sliding columns, cross plates, and springs, the mixing tank is stirred by the rotation of the stirring shaft, which simultaneously drives the baffle to slide back and forth on the dosing pipe. This intermittently opens the leakage holes on the partition inside the dosing pipe, allowing the chemical reagents in the storage tank to be intermittently added to the mixing tank through the dosing pipe during the rotation of the stirring shaft. This helps to ensure the uniform distribution of the reagents in the mixing tank. Unlike continuous dosing, intermittent dosing allows for better control of the dosing speed and amount. It not only avoids situations where the local concentration of the reagents is too high or too low, improving the mixing effect and reagent utilization rate, but also avoids unnecessary waste by precisely controlling the amount and time interval of reagent addition, further saving energy and costs.
[0015] 2. By using the knobs and threaded rods, operators can adjust the height of the linkage plate and linkage rod when stirring is not required or when the chemical dosing strategy needs to be adjusted inside the mixing chamber. This allows the linkage rod and cam to be misaligned, thus pausing the dosing of chemicals into the mixing chamber. This improves the system's flexibility and adaptability. Furthermore, by pausing the dosing of chemicals when the required mixing effect has been achieved inside the mixing chamber or when there is sufficient chemical, the amount of chemical used can be effectively saved, reducing production costs. Attached Figure Description
[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This utility model Figure 1 Enlarged structural diagram of region A in the middle;
[0019] Figure 3 This is a schematic diagram of the connection structure of the dosing tube of this utility model;
[0020] Figure 4 This is a schematic diagram of the baffle connection structure of this utility model;
[0021] In the diagram: 1. Mixing box; 2. Storage box; 3. Support frame; 4. Drive motor; 5. Dosing pipe; 6. Stirring shaft; 7. Cam; 8. Linkage rod; 9. Horizontal plate; 10. Connecting plate; 11. Sliding column; 12. Threaded rod; 13. Knob; 14. Support column; 15. Spring; 16. Connecting rod; 17. Baffle; 18. Partition; 19. Leakage hole; 20. Sealing groove; 21. Sealing strip; 22. Linkage plate. Detailed Implementation
[0022] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] Example:
[0024] like Figures 1-4 As shown, a high-efficiency fracturing reverse flow fluid recycling device includes a mixing tank 1. A dosing pipe 5 is fixedly connected through the upper end of the mixing tank 1. A storage tank 2 is fixedly connected to the upper end of the dosing pipe 5. A partition 18 is fixedly connected inside the dosing pipe 5. A leakage hole 19 is opened on the partition 18. A baffle 17 is symmetrically attached to the lower end of the partition 18. The baffles 17 are all slidably connected through the dosing pipe 5.
[0025] In this embodiment, as Figure 2As shown, each of the baffles 17 located on the outer side of the dosing tube 5 is rotatably connected to a connecting rod 16. A horizontal plate 9 is rotatably connected between the two connecting rods 16 on the side away from the baffle 17. A support column 14 is slidably connected through the horizontal plate 9. The support column 14 is fixedly connected to the outer surface of the dosing tube 5. A spring 15 is sleeved on the outer surface of the support column 14. One end of the spring 15 is fixedly connected to the side wall of the horizontal plate 9, and the other end of the spring 15 is fixedly connected to the outer surface of the dosing tube 5. When the horizontal plate 9 slides on the outer surface of the support column 14, it will not only compress the spring 15, but also push the baffle 17 to slide synchronously on the dosing tube 5 through the connecting rod 16.
[0026] In this embodiment, as Figure 3 and Figure 4 As shown, one of the baffles 17 has a sealing groove 20 inside the dosing tube 5, and the other baffle 17 has a sealing strip 21 fixedly connected to the inside of the dosing tube 5. The sealing strip 21 and the sealing groove 20 are interlocked. By inserting the sealing strip 21 into the sealing groove 20, the sealing between the two baffles 17 can be increased.
[0027] In this embodiment, as Figure 2 As shown, symmetrical sliding columns 11 are connected through the horizontal plate 9. A linkage plate 22 is fixedly connected between the lower ends of the two sliding columns 11. A linkage rod 8 is fixedly connected at the center of the side of the linkage plate 22 away from the dosing tube 5. When the linkage rod 8 is pushed, the horizontal plate 9 can be pushed to move synchronously through the linkage plate 22 and the sliding columns 11.
[0028] In this embodiment, as Figure 1 and Figure 2 As shown, a support frame 3 is fixedly connected to the upper end face of the mixing box 1, a drive motor 4 is fixedly connected to the upper end face of the support frame 3, a stirring shaft 6 is fixedly connected to the output end of the drive motor 4, the stirring shaft 6 is rotatably connected to the mixing box 1, a cam 7 is fixedly connected to the outer surface of the stirring shaft 6, and the linkage rod 8 is initially in contact with the outer surface of the cam 7. When the drive motor 4 is turned on to drive the stirring shaft 6 to rotate, the cam 7 can rotate synchronously with the stirring shaft 6, and at the same time drive the cam 7 to push the linkage rod 8 to move.
[0029] In this embodiment, as Figure 2 As shown, a connecting plate 10 is fixedly connected between the upper ends of the two sliding columns 11. A threaded rod 12 is threadedly connected through the center of the connecting plate 10. The threaded rod 12 is rotatably connected to the upper end face of the horizontal plate 9. A knob 13 is fixedly connected to the upper end of the threaded rod 12. When the knob 13 is rotated to drive the threaded rod 12 to rotate, the sliding column 11 can be driven to slide up and down on the horizontal plate 9 through the threaded connection between the threaded rod 12 and the connecting plate 10.
[0030] The effects achieved by this embodiment are as follows: In the prior art, the traditional continuous dosing method can only continuously add the agent to the mixing tank 1 at a constant rate, which can easily lead to uneven distribution of the agent in the mixing tank 1, resulting in local concentrations that are too high or too low. Too high a concentration can cause adverse reactions or waste of the agent, while too low a concentration cannot achieve the expected mixing effect, thus affecting the utilization rate of the agent, leading to unnecessary waste, and increasing energy and cost. Compared with the prior art, the chemical agent in the storage tank 2 can be intermittently added to the mixing tank 1 through the dosing pipe 5 during the rotation of the stirring shaft 6, which helps to achieve uniform distribution of the agent in the mixing tank 1. Unlike the continuous dosing method, the intermittent dosing method can better control the speed and amount of agent addition. It can not only avoid local concentrations that are too high or too low, improve the mixing effect and the utilization rate of the agent, but also avoid unnecessary waste by precisely controlling the amount and time interval of agent addition, further saving energy and cost.
[0031] The overall working process and principles involved in the above embodiments are as follows:
[0032] When the drive motor 4 drives the stirring shaft 6 to stir and mix the fracturing reverse discharge fluid in the mixing box 1, the operator can first pause the stirring, and then turn the knob 13 to drive the threaded rod 12 to rotate. As the threaded rod 12 rotates, the threaded connection between the threaded rod 12 and the connecting plate 10 allows the connecting plate 10 to slide down along the outer surface of the threaded rod 12, and push the sliding column 11 symmetrically connected to the lower end face of the connecting plate 10 to descend vertically on the horizontal plate 9, causing the linkage plate 22 connected to the lower end of the sliding column 11 to descend synchronously. During the descent of the linkage plate 22, the linkage plate 22 will drive the linkage rod 8 connected to the side wall to move downward, so that the end of the linkage rod 8 away from the linkage plate 22 is attached to the outer surface of the cam 7.
[0033] After the outer surfaces of the linkage rod 8 and the cam 7 are in contact, the operator can turn on the drive motor 4 again to drive the stirring shaft 6 to rotate. At this time, the cam 7 will rotate synchronously with the stirring shaft 6, pushing the linkage rod 8 to move along the outer surface of the cam 7. Due to the shape of the cam 7, the linkage rod 8 will first move away from the stirring shaft 6, and through the linkage plate 22 and the sliding column 11, it will push the horizontal plate 9 to slide on the outer surface of the support column 14, squeezing the spring 15 connected between the horizontal plate 9 and the dosing tube 5. When the horizontal plate 9 slides close to the dosing tube 5 on the outer surface of the support column 14, the horizontal plate 9 will push one end of the rotating connecting rod 16 on both sides to move synchronously, and through the connecting rod 16, push the baffle 17 to slide out from inside the dosing tube 5 and separate from the partition 18 inside the dosing tube 5. At this time, the leakage hole 19 on the partition 18 will open, and the chemical agent inside the storage box 2 will drip through the leakage hole 19 on the partition 18 and pass through the dosing tube 5 into the mixing box 1, and mix with the chemical agent. When the fracturing reverse discharge liquid phase inside the mixing tank 1 is mixed, as the stirring shaft 6 continues to rotate the cam 7, the thrust exerted by the cam 7 on the linkage rod 8 will disappear. At this time, the spring 15 connected between the horizontal plate 9 and the dosing tube 5 will rebound, pushing the horizontal plate 9 to slide back to the initial position on the outer surface of the support column 14, and pulling the connecting rod 16 to drive the baffle 17 to slide back into the dosing tube 5, so that the baffle 17 covers the lower end face of the partition 18 and seals the leakage hole 19 opened on the partition 18, thereby realizing the intermittent addition of chemical agents to the mixing tank 1, which helps the agent to be evenly distributed in the mixing tank 1. Unlike the continuous dosing method, the intermittent dosing method can better control the speed and amount of agent addition. It can not only avoid the local concentration of the agent being too high or too low, improve the mixing effect and the utilization rate of the agent, but also avoid unnecessary waste by precisely controlling the amount and time interval of agent addition, further saving energy and cost.
[0034] During the process of the two baffles 17 sliding into the dosing tube 5, the sealing strip 21 connected to the side wall of one baffle 17 will be inserted into the sealing groove 20 opened on the side wall of the other baffle 17, increasing the sealing between the two baffles 17 and preventing chemical agents from leaking from the gap between the two baffles 17.
[0035] After the chemical reagents in the mixing tank 1 have been added, the operator can first pause the drive motor 4, and then turn the knob 13 in the opposite direction to drive the threaded rod 12 to reverse. At this time, the threaded rod 12, through the connecting plate 10, the sliding column 11, and the linkage plate 22, can pull the linkage rod 8 to rise synchronously, so that the linkage rod 8 and the cam 7 are misaligned and separated, so that the cam 7 cannot push the linkage rod 8 to move, thereby pausing the addition of chemical reagents to the mixing tank 1. This improves the flexibility and adaptability of the system. Furthermore, when the required mixing effect has been achieved inside the mixing tank 1 or when there is enough reagent, pausing the addition of reagents can effectively save the amount of chemical reagents used and reduce production costs.
[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A high-efficiency fracturing reverse drainage fluid circulation and recovery device, characterized in that, The device includes a mixing box (1), a dosing tube (5) is fixedly connected to the upper end of the mixing box (1), a storage box (2) is fixedly connected to the upper end of the dosing tube (5), a partition (18) is fixedly connected inside the dosing tube (5), a leakage hole (19) is opened on the partition (18), and a baffle (17) is symmetrically attached to the lower end of the partition (18). The baffles (17) are all slidably connected to the dosing tube (5).
2. The high-efficiency fracturing reverse flow fluid circulation and recovery device according to claim 1, characterized in that, Each of the baffles (17) located on the outside of the dosing tube (5) is rotatably connected to a connecting rod (16). A horizontal plate (9) is rotatably connected between the two connecting rods (16) on the side away from the baffles (17). A support column (14) is slidably connected through the horizontal plate (9). The support column (14) is fixedly connected to the outer surface of the dosing tube (5). A spring (15) is sleeved on the outer surface of the support column (14). One end of the spring (15) is fixedly connected to the side wall of the horizontal plate (9), and the other end of the spring (15) is fixedly connected to the outer surface of the dosing tube (5).
3. The high-efficiency fracturing reverse flow fluid circulation and recovery device according to claim 2, characterized in that, One of the baffles (17) has a sealing groove (20) on one side inside the dosing tube (5), and the other baffle (17) has a sealing strip (21) fixedly connected to one side inside the dosing tube (5). The sealing strip (21) and the sealing groove (20) are interlocked.
4. The high-efficiency fracturing reverse flow fluid circulation and recovery device according to claim 2, characterized in that, The horizontal plate (9) is symmetrically connected with sliding columns (11), and a linkage plate (22) is fixedly connected between the lower ends of the two sliding columns (11). A linkage rod (8) is fixedly connected at the center of the linkage plate (22) on the side away from the dosing tube (5).
5. The high-efficiency fracturing reverse flow fluid circulation and recovery device according to claim 4, characterized in that, A support frame (3) is fixedly connected to the upper end face of the mixing box (1), and a drive motor (4) is fixedly connected to the upper end face of the support frame (3). A stirring shaft (6) is fixedly connected to the output end of the drive motor (4). The stirring shaft (6) is rotatably connected to the mixing box (1). A cam (7) is fixedly connected to the outer surface of the stirring shaft (6). The linkage rod (8) is initially in contact with the outer surface of the cam (7).
6. The high-efficiency fracturing reverse flow fluid circulation and recovery device according to claim 4, characterized in that, A connecting plate (10) is fixedly connected between the upper ends of the two sliding columns (11). A threaded rod (12) is threadedly connected through the center of the connecting plate (10). The threaded rod (12) is rotatably connected to the upper end face of the horizontal plate (9). A knob (13) is fixedly connected to the upper end of the threaded rod (12).