Mixing and dosing device for oil exploitation

Abstract

The utility model relates to oil exploitation, and particularly discloses a mixing and dosing device for oil exploitation, which comprises a mixing drum, the top of the mixing drum is rotatably connected with an outer tubular shaft, the part of the outer tubular shaft positioned in the cavity of the mixing drum is connected with a mixing paddle, and the part of the outer tubular shaft positioned outside the mixing drum is connected with a first bevel gear; the inner bottom surface of the stirring barrel is rotationally connected with an inner pipe shaft, the upper end of the inner pipe shaft is connected with a second bevel gear, and a motor for driving the first bevel gear and the second bevel gear is arranged on the outer side of the stirring barrel; the bottom of the inner pipe shaft is connected with a group of stirring pipes, the stirring pipes are provided with a group of spray heads, the top of the inner pipe shaft is connected with a rotary movable joint, the other end of the rotary movable joint is communicated with the middle of the stirring barrel through a circulating pipe, and the circulating pipe is provided with a circulating pump. According to the utility model, the medicament is fully mixed with the solvent in a manner of stirring dissolution and internal circulation impact on the deposited medicament at the bottom, so that the medicament solution is more uniformly and stably mixed.

Description

Technical Field

[0001] This utility model relates to oil extraction, specifically a mixing and dosing device for oil extraction. Background Technology

[0002] Currently, petrochemical agents are used to assist in oil extraction operations, such as chemical unblocking agents, iron ion chelating agents, and profile control agents. When using chemical agents, solid or powdered agents need to be mixed with solvents to form a solution before they can be applied to oil extraction operations. Currently, agents are mixed using traditional mixing drums equipped with motors that drive the agitator. However, it has been found that some large, difficult-to-dissolve agents tend to settle at the bottom of the mixing drum, resulting in a low concentration of the mixed solution and affecting its effectiveness. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a mixing and dosing device for oil extraction. This device uses stirring and dissolving, along with internal circulation to impact the bottom deposited chemicals, to ensure thorough mixing of the chemicals with the solvent, resulting in a more uniform chemical solution.

[0004] The technical solution of this utility model is: a mixing and dosing device for oil extraction, including a mixing drum, the top of which is rotatably connected to an outer tube shaft extending vertically into the mixing drum, the part of the outer tube shaft located inside the mixing drum cavity is connected to a stirring paddle, and the part of the outer tube shaft located outside the mixing drum is connected to a first bevel gear.

[0005] The inner bottom surface of the stirring drum is rotatably connected to an inner tube shaft arranged coaxially with the outer tube shaft. The upper end of the inner tube shaft extends from the top of the outer tube shaft and is connected to a second bevel gear. A motor is provided on the outside of the stirring drum, and a third bevel gear is installed on the motor to mesh with the first bevel gear and the second bevel gear for transmission.

[0006] The bottom of the inner tube shaft is connected to a set of stirring tubes that communicate with the inner cavity of the inner tube shaft. The stirring tubes are equipped with a set of nozzles facing the bottom surface of the inner tube. The top of the inner tube shaft is connected to a rotary joint. The other end of the rotary joint is connected to the middle of the stirring tube through a circulation pipe. The circulation pipe is equipped with a circulation pump.

[0007] Preferably, the top of the stirring cylinder is provided with an inverted L-shaped support, and the free end of the inverted L-shaped support is rotatably connected to the inner tube shaft.

[0008] Preferably, the mixing drum has a feed inlet at the top and a discharge outlet on one side of the bottom.

[0009] Preferably, the circulation pipe is a rigid pipe.

[0010] Compared with the prior art, this invention has the following advantages: This invention uses a stirring paddle to mix the upper and middle solutions in the stirring tank, and a stirring tube to mix the lower solution in the stirring tank. Furthermore, the nozzle on the stirring tube, combined with a circulation pipe and a circulation pump, impacts the sparingly soluble drug particles deposited at the bottom of the stirring tank, preventing deposition. In addition, this invention uses a bevel gear set to drive the stirring tube and stirring paddle to rotate in opposite directions, preventing the formation of vortices in the stirring tank, resulting in higher stirring efficiency and more uniform and stable mixing of the drug solution. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the present invention;

[0012] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0013] In the diagram: 1. Motor, 2. Mixing drum, 3. Discharge port, 4. Inverted L-shaped support, 5. Rotary joint, 6. Circulation pipe, 7. Circulation pump, 8. Feed inlet, 9. Second bevel gear, 10. Third bevel gear, 11. First bevel gear, 12. Outer tube shaft, 13. Mixing paddle, 14. Inner tube shaft, 15. Mixing tube, 16. Nozzle. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example 1

[0015] As shown in Figures 1 and 2, a mixing and dosing device for oil extraction includes a mixing drum 2, with a feed inlet 8 at the top and a discharge outlet 3 on one side of the bottom of the mixing drum 2.

[0016] The top of the mixing drum 2 is rotatably connected to an outer tube shaft 12 that extends vertically into the mixing drum 2. The portion of the outer tube shaft 12 located inside the mixing drum 2 is connected to two sets of stirring paddles 13, and the portion of the outer tube shaft 12 located outside the mixing drum 2 is connected to a first bevel gear 11.

[0017] The inner bottom surface of the stirring drum 2 is rotatably connected to an inner tube shaft 14 arranged coaxially with the outer tube shaft 12. The upper end of the inner tube shaft 14 extends from the top of the outer tube shaft 12 and is connected to a second bevel gear 9.

[0018] A motor 1 is installed on the outside of the mixing drum 2. A third bevel gear 10 is installed on the output shaft of the motor 1. The third bevel gear 10 meshes with the first bevel gear 11 and the second bevel gear 9 for transmission.

[0019] A set of stirring tubes 15 are connected to the bottom of the inner tube shaft 14. The stirring tubes 15 are connected to the inner cavity of the inner tube shaft 14. Each stirring tube 15 is connected to a set of nozzles 16 facing the bottom of the stirring drum 2.

[0020] The top of the inner tube shaft 14 is connected to a rotary joint 5. The bottom rotating end of the rotary joint 5 is connected to the top of the inner tube shaft 14. The top rotating end of the rotary joint 5 is connected to the middle of the stirring drum 2 through the circulation pipe 6. The circulation pipe 6 is equipped with a circulation pump 7. The circulation pump 7 draws liquid from the middle of the stirring drum 2, and then, after passing through the circulation pipe 6, the rotary joint 5, the inner tube shaft 14, and the stirring tube 15, it is pressurized and sprayed out by the nozzle 16.

[0021] Working principle:

[0022] When in use, the drug solute and solvent are added to the stirring tank 2. The stirring paddle 13 mixes the upper and middle solutions in the stirring tank 2, while the stirring tube 15 mixes the lower solution in the stirring tank 2.

[0023] At the same time, the nozzle 16 on the stirring tube 15, together with the circulation tube 6 and the circulation pump 7, impacts and lifts the drug particles deposited at the bottom of the stirring drum 2, so as to prevent the drug solute from settling.

[0024] In addition, the bevel gear set drives the stirring tube 15 and the stirring paddle 13 to rotate in opposite directions, avoiding the formation of vortices rotating in the same direction in the stirring drum 2, thus resulting in higher stirring efficiency and more uniform mixing of the drug solution. Example 2

[0025] This embodiment is a further optimization based on the above embodiment, specifically:

[0026] As shown in Figures 1 and 2, the top of the stirring drum 2 is provided with an inverted L-shaped bracket 4. The free end of the inverted L-shaped bracket 4 is rotatably connected to the inner tube shaft 14. The inverted L-shaped bracket 4 improves the assembly stability of the inner tube shaft 14, thereby making the rotation smoother and more stable.

[0027] In addition, the circulation pipe 6 is made of rigid PVC or metal to further prevent twisting as the rotary joint 5 rotates, thus improving the stability of use.

[0028] This utility model is not limited to the above-described embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model, and the changed content still falls within the protection scope of this utility model.

Claims

1. A mixing chemical injection device for oil production comprising a mixing barrel, characterized in that: The top of the stirring barrel is rotationally connected with an outer tube shaft vertically extending into the stirring barrel, the part of the outer tube shaft located in the stirring barrel cavity is connected with a stirring paddle, and the part of the outer tube shaft located outside the stirring barrel is connected with a first bevel gear; The inner bottom surface of the stirring barrel is rotationally connected with an inner tube shaft coaxially arranged with the outer tube shaft, the upper end of the inner tube shaft extends out of the top of the outer tube shaft and is connected with a second bevel gear, the outer side of the stirring barrel is provided with a motor, and the motor is installed with a third bevel gear in meshing transmission with the first bevel gear and the second bevel gear; The bottom of the inner tube shaft is connected with a group of stirring tubes in communication with the inner cavity of the inner tube shaft, the stirring tubes are provided with a group of nozzles facing the inner bottom surface of the stirring barrel, the top of the inner tube shaft is connected with a rotary union, the other end of the rotary union is communicated with the middle part of the stirring barrel through a circulating pipe, and the circulating pipe is provided with a circulating pump.

2. The mixed injection device for oil production according to claim 1, characterized in that: The top of the stirring barrel is provided with an inverted L-shaped support, and the free end of the inverted L-shaped support is rotationally connected with the inner tube shaft.

3. The mixed injection device for oil production according to claim 1, characterized in that: The top of the stirring barrel is provided with a feeding port, and the bottom side is provided with a discharging port.

4. The mixed injection device for oil production according to claim 1, characterized in that: The circulating pipe is a hard pipe.

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