Pollutant treatment device used after tertiary oil recovery

Abstract

The utility model discloses a pollutant treatment device used after tertiary oil recovery, and belongs to the field of pollutant treatment. A pollutant treatment device used after tertiary oil recovery comprises a dredging pipe, the right end of the dredging pipe is connected with a discharging pipe, a flow guide block is arranged in the dredging pipe, a limiting rod is fixed to the lower end of the flow guide block, a prismatic drawing rod connected with the lower end of the dredging pipe in an inserted mode is fixed to the lower end of the limiting rod, and a rotating disc is arranged on the periphery of the limiting rod. A motor is fixed to the outer end of the limiting rod through a connecting block, a gear meshed with the lower end of the rotating disc is fixed to the upper end of the motor through an output shaft of the motor, a limiting barrel rotationally connected with the limiting rod is fixed to the upper end of the rotating disc, and a plurality of stirring rods are arranged on the periphery of the limiting barrel at equal intervals. According to the utility model, the dredging effect on the discharge pipe is improved.

Description

Technical Field

[0001] The utility model relates to the field of pollutant treatment, and more specifically, to a pollutant treatment device used for tertiary oil recovery. Background Art

[0002] Extracting oil from the natural energy of an oil reservoir is generally referred to as primary recovery. Secondary recovery is the process of injecting water or gas into an oil reservoir to replenish its energy as formation pressure decreases. Tertiary recovery, on the other hand, involves injecting other fluids and employing physical, chemical, thermal, and biological methods to alter the reservoir rock and fluid properties, thereby increasing the recovery rate after water flooding. Chemical flooding involves injecting certain chemicals into the water injected into the reservoir to alter the properties of the displacing fluid and the interface between the displacing fluid and crude oil, such as reducing interfacial tension and improving mobility ratios, thereby increasing oil recovery. Microbial flooding involves injecting microbial fluid and nutrient solution isolated and cultured from the surface into the oil reservoir, or simply injecting nutrient solution and microorganisms within the oil reservoir to allow them to grow and reproduce in the reservoir, producing metabolic products that are beneficial to oil recovery, thereby increasing oil recovery. After tertiary oil recovery, a large amount of pollutants containing chemicals and microorganisms will be produced. If not treated in time, they will pollute the environment. However, the pollutant treatment devices on the market rarely treat solids, liquids and gases at the same time, so the treatment is not sufficient. In addition, a power device is usually required to extract the liquid from the pollutants, which results in high treatment costs.

[0003] The prior art patent document with publication number CN209790963U provides a pollutant treatment device for tertiary oil recovery; the device can simultaneously treat solids, liquids and gases separately through the coordinated use of a sedimentation tank, a liquid treatment tank and a gas filter tube, and through the use of a siphon tube, the liquid can be directly separated without the need for a power device, thereby reducing treatment costs.

[0004] While this device has many beneficial effects, it still has the following problems: The device is equipped with a dredging rod to unclog the clogged discharge pipe. However, when the rod is used to unclog the discharge pipe, it is impossible to connect the discharge pipe to other pipelines, causing the liquid in the device to overflow from the discharge pipe and pollute the surrounding environment. In view of this, we propose a pollutant treatment device for post-tertiary oil recovery. Utility Model Content

[0005] The purpose of the utility model is to provide a pollutant treatment device for tertiary oil recovery to solve the problems raised in the above background technology.

[0006] The technical solution of the utility model is:

[0007] A pollutant treatment device for tertiary oil recovery includes a dredge pipe, characterized in that: the right end of the dredge pipe is connected to a discharge pipe, a guide block is provided in the dredge pipe, a limiting rod is fixed to the lower end of the guide block, a prismatic pull-out rod connected to the lower end of the dredge pipe is fixed to the lower end of the limiting rod, a rotating disk is provided on the periphery of the limiting rod, a motor is fixed to the outer end of the limiting rod through a connecting block, a gear meshing with the lower end of the rotating disk is fixed to the upper end of the motor through its output shaft, a limiting cylinder rotatably connected to the limiting rod is fixed to the upper end of the rotating disk, and a plurality of stirring rods are equidistantly provided on the periphery of the limiting cylinder.

[0008] Preferably, the connection between the discharge pipe and the dredging pipe is rounded, and the upper end of the guide block matches the arc of the rounded corner of the discharge pipe.

[0009] Preferably, a prismatic slot is provided at the lower end of the dredging pipe, and the prismatic pumping rod is inserted into the prismatic slot.

[0010] Preferably, an inner tooth groove is provided at the lower end of the rotating disk, and the outer end of the gear meshes with the inner end of the inner tooth groove.

[0011] Preferably, a connecting rod matching the stirring rod is fixed to the periphery of the limiting cylinder, the periphery of the connecting rod is tilted upward, and the length of the connecting rod matches the diameter of the dredging pipe, and the outer end of the connecting rod is rotatably connected to the inner end of the stirring rod through a rotating shaft and a disc spring.

[0012] The technical effects of the utility model are:

[0013] 1. The utility model can guide the liquid entering the dredge pipe through the guide block, so that it can be discharged through the discharge pipe. The prismatic pumping rod can drive the stirring rod to move up and down. The motor, the rotating disk and the gear can make the stirring rod rotate around the limit rod, thereby dredging the dredge pipe and preventing it from being blocked.

[0014] 2. The utility model connects the stirring rod and the connecting rod through a rotating shaft and a coil spring. When the connecting rod is retracted into the dredging pipe, the stirring rod can be pushed inward to retract the stirring rod. When the connecting rod moves upward into the dredging pipe, the stirring rod can be expanded, thereby expanding the stirring range of the stirring rod and improving the dredging effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall external structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the overall internal structure of the utility model.

[0017] Figure 3 This is a schematic diagram of the internal structure of the dredging pipe of the present utility model.

[0018] Figure 4 This is a schematic diagram of the internal structure of the connection between the limiting rod and the limiting cylinder of the present utility model.

[0019] Figure 5 This is a schematic diagram of the external structure of the limit rod of the utility model.

[0020] Figure 6 This is a schematic diagram of the internal structure of the limiting cylinder of the present utility model.

[0021] Explanation of the numbers in the figure: 1. Clearing pipe; 2. Discharge pipe; 3. Prismatic extraction rod; 4. Guide block; 5. Stirring rod; 6. Prismatic slot; 7. Limiting rod; 8. Limiting cylinder; 9. Rotating disk; 10. Motor; 11. Gear; 12. Connecting rod; 13. Internal tooth groove. DETAILED DESCRIPTION

[0022] See also Figure 1-6 ,The utility model provides a technical solution:

[0023] A pollutant treatment device for tertiary oil recovery includes a dredge pipe 1, the right end of the dredge pipe 1 is connected to a discharge pipe 2, a guide block 4 is provided in the dredge pipe 1, a limiting rod 7 is fixed to the lower end of the guide block 4, a prismatic pumping rod 3 connected to the lower end of the dredge pipe 1 is fixed to the lower end of the limiting rod 7, a rotating disk 9 is provided on the periphery of the limiting rod 7, a motor 10 is fixed to the outer end of the limiting rod 7 through a connecting block, a gear 11 meshing with the lower end of the rotating disk 9 is fixed to the upper end of the motor 10 through its output shaft, a limiting cylinder 8 rotatably connected to the limiting rod 7 is fixed to the upper end of the rotating disk 9, and a plurality of stirring rods 5 are evenly spaced around the limiting cylinder 8.

[0024] Specifically, the connection between the discharge pipe 2 and the dredging pipe 1 is rounded, and the upper end of the guide block 4 matches the arc of the rounded corner of the discharge pipe 2; the liquid can be guided to facilitate the flow of liquid into the discharge pipe 2.

[0025] Furthermore, a prismatic slot 6 is provided at the lower end of the dredging pipe 1, and the prismatic pumping rod 3 is inserted into the prismatic slot 6; the movement direction of the guide block 4 is restricted to avoid the guide block 4 from being offset after moving up and down.

[0026] Furthermore, an inner tooth groove 13 is formed at the lower end of the rotating disk 9 , and the outer end of the gear 11 and the inner end of the inner tooth groove 13 mesh with each other, thereby realizing transmission between the gear 11 and the rotating disk 9 .

[0027] Furthermore, a connecting rod 12 matching the stirring rod 5 is fixed to the outer periphery of the limiting cylinder 8. The outer periphery of the connecting rod 12 is tilted upward, and the length of the connecting rod 12 matches the diameter of the dredging pipe 1. The outer end of the connecting rod 12 is rotatably connected to the inner end of the stirring rod 5 through a rotating shaft and a disc spring; it facilitates the expansion and contraction of the stirring rod 5 and improves the performance of the stirring rod 5.

[0028] Working principle: When the dredging pipe 1 needs to be dredged, there is no need to disassemble the connection between the discharge pipe 2 and the external pipe at the right end. At the lower end of the dredging pipe 1, the prismatic pumping rod 3 is used to push the guide block 4 and the stirring rod 5 upward along the prismatic slot 6 into the sedimentation tank body, so that the stirring rod 5 is separated from the dredging pipe 1, and the liquid blocked in the dredging pipe 1 is pushed out into the tank body. Under the action of the coil spring, the stirring rod 5 is driven to rotate downward at the outer end of the connecting rod 12, so that the stirring rod 5 and the connecting rod 12 are distributed in a straight line, thereby expanding the stirring rod 5 and controlling it through the external The device starts the motor 10, and the motor 10 drives the gear 11 to rotate through its output shaft. Under the meshing action of the internal tooth groove 13, the limit cylinder 8 is driven to rotate along the limit rod 7, thereby driving the stirring rod 5 to rotate, stirring the connection between the dredging pipe 1 and the tank body to avoid blockage again. After the dredging is completed, the guide block 4 and the stirring rod 5 are driven downward by the prismatic pumping rod 3, so that the guide block 4 is reset to match the position of the discharge pipe 2, and under the interference of the dredging pipe 1, the stirring rod 5 is driven to move upward along the direction of the rotating shaft, thereby shrinking the stirring rod 5.

Claims

1. A pollutant treatment device for tertiary oil recovery, comprising a dredging pipe (1), characterized in that: The right end of the dredging pipe (1) is connected to the discharge pipe (2), and a guide block (4) is provided in the dredging pipe (1). A limit rod (7) is fixed to the lower end of the guide block (4), and a prismatic draw rod (3) plugged into the lower end of the dredging pipe (1) is fixed to the lower end of the limit rod (7). A rotating disk (9) is provided on the periphery of the limit rod (7). A motor (10) is fixed to the outer end of the limit rod (7) through a connecting block, and a gear (11) meshing with the lower end of the rotating disk (9) is fixed to the upper end of the motor (10) through its output shaft. A limit cylinder (8) rotatably connected to the limit rod (7) is fixed to the upper end of the rotating disk (9), and a plurality of stirring rods (5) are provided on the periphery of the limit cylinder (8) at equal intervals.

2. The pollutant treatment device for tertiary oil recovery according to claim 1, characterized in that: The connection between the discharge pipe (2) and the dredging pipe (1) is rounded, and the upper end of the guide block (4) matches the arc of the rounded corner of the discharge pipe (2).

3. The pollutant treatment device for tertiary oil recovery according to claim 1, characterized in that: A prismatic slot (6) is provided at the lower end of the dredging pipe (1), and the prismatic pumping rod (3) is inserted into the prismatic slot (6).

4. The pollutant treatment device for tertiary oil recovery according to claim 1, characterized in that: An inner tooth groove (13) is provided at the lower end of the rotating disk (9), and the outer end of the gear (11) and the inner end of the inner tooth groove (13) are meshed with each other.

5. The pollutant treatment device for tertiary oil recovery according to claim 1, characterized in that: A connecting rod (12) matching the stirring rod (5) is fixed to the periphery of the limiting cylinder (8), the periphery of the connecting rod (12) is arranged to be tilted upward, and the length of the connecting rod (12) matches the diameter of the dredging pipe (1), and the outer end of the connecting rod (12) is rotatably connected to the inner end of the stirring rod (5) through a rotating shaft and a coil spring.

Images