Petrochemical additive continuous reaction device

Abstract

The utility model discloses a petrochemical auxiliary continuous reaction device which comprises a liquid auxiliary storage tank, the bottom end of the liquid auxiliary storage tank is connected with a weighing hopper through a liquid conveying pipe, the lower end of the weighing hopper is connected with a mixing machine tank through a pipeline, one side of the mixing machine tank is provided with a spiral conveying mechanism, and the other side of the mixing machine tank is provided with a stirring device. The bottom end of the mixing machine tank is hermetically connected with a first liquid discharge pump through a first liquid discharge pipe, the bottom end of the filtering machine tank is connected with a filtering machine pump through a pipeline, a filtering pipeline is arranged at the liquid outlet end of the filtering machine pump, and the filtering pipeline is respectively connected with a first centrifugal machine tank and a second centrifugal machine tank through filtrate branch pipes. According to the utility model, raw materials for production of petrochemical additives are prefabricated, mixed, stirred and conveyed, solid reactants are spirally cut, fed and fully stirred and mixed with liquid additives, then residual solid particles in a mixed solution are fully filtered and removed, and the additives are ensured to be pure and free of impurities after being produced and processed.

Description

Technical Field

[0001] The utility model relates to the technical field of petrochemical production, in particular to a continuous reaction device for petrochemical additives. Background Technique

[0002] In recent years, waterflooding-developed oilfields have entered the high water cut stage, and the oil production rate of water flooding has decreased significantly. During the process of tertiary oil recovery in oilfields, more deep profile control technologies have been proposed. Through metering deep treatment, plugging is generated in high permeability layers or fractures, effectively inhibiting the premature breakthrough of plugging agents, changing the flow direction of the post-injected fluid, thereby increasing the swept area of the plugging agent and achieving the purpose of increasing oil recovery.

[0003] The Chinese authorized patent document with the publication number CN217490898U discloses a continuous reaction device for petrochemical additives, including a batching kettle and a reaction kettle. A stainless steel conveying steel pipe is arranged between the batching kettle and the reaction kettle. A first dispersion shaft and a second dispersion shaft are rotatably installed inside the batching kettle. Propelling type stirring blades are fixedly installed on the surface of the first dispersion shaft, and a dispersion disc is fixedly installed on the surface of the second dispersion shaft. A stirring motor for driving the first dispersion shaft and the second dispersion shaft is arranged at the top of the batching kettle. The conveying steel pipe is connected in series with a plunger pump and a metering pump. This continuous reaction device for petrochemical additives can control the quality of emulsification, and during the reaction process, the initiator can be slowly added to the system, which can avoid the influence of external factors on the reaction to the greatest extent. It is used for preparing polyacrylamide gel. The solution is highly emulsified by the batching kettle, and then the emulsified liquid and the initiator are simultaneously injected into the reaction device by means of pumping, forming a continuous reaction.

[0004] In the above-mentioned prior art, the solution in the production and processing of petrochemical additives cannot be fully mixed and reacted and filtered, resulting in solid impurity particles in the processed solution, resulting in impure product concentration. Therefore, it is necessary to develop a new type of continuous reaction device for petrochemical additives. Content of the Utility Model

[0005] The purpose of the utility model is to provide a continuous reaction device for petrochemical additives, so as to solve the problem that in the prior art, the solution in the production and processing of petrochemical additives cannot be fully mixed and reacted and filtered, resulting in solid impurity particles in the processed solution and impure product concentration as mentioned in the above background technique.

[0006] To achieve the above object, the present utility model provides the following technical solution: A continuous reaction device for petrochemical additives, comprising a liquid additive storage tank. The bottom end of the liquid additive storage tank is connected to a weighing hopper through a liquid agent delivery pipe. The lower end of the weighing hopper is connected to a mixing tank through a pipeline. A screw feeding mechanism is installed on one side of the mixing tank. The bottom end of the mixing tank is hermetically connected to a first liquid discharge pump through a first liquid discharge pipe. The liquid outlet end of the first liquid discharge pump is hermetically connected to a first reaction tank and a second reaction tank respectively through a liquid discharge branch pipeline. The bottom ends of the first reaction tank and the second reaction tank are hermetically connected to a second liquid discharge pump through a second liquid discharge pipe. The liquid outlet end of the second liquid discharge pump is hermetically connected to a filter tank through a third liquid discharge pipe. The bottom end of the filter tank is connected to a filter pump through a pipeline. The liquid outlet end of the filter pump is provided with a filter pipeline. The filter pipeline is connected to a first centrifuge tank and a second centrifuge tank respectively through a filtrate branch pipe.

[0007] Preferably, there are two screw feeding mechanisms. One end of the screw feeding mechanism is provided with a feeding hopper, and the other end is provided with a discharge chute opening, which is located directly above the mixing tank.

[0008] Preferably, driving motors are installed at the tops of both the first reaction tank and the second reaction tank. The output end of the driving motor is connected to a stirring mechanism arranged inside the first reaction tank and the second reaction tank through a rotating shaft. A flow control valve is installed on the liquid discharge branch pipeline.

[0009] Preferably, centrifugal stirring motors are installed at the tops of both the first centrifuge tank and the second centrifuge tank. The output end of the centrifugal stirring motor is connected to a centrifugal stirring mechanism arranged inside the first centrifuge tank and the second centrifuge tank through a rotating shaft.

[0010] Preferably, a filtrate control valve is installed on the filtrate branch pipe, and a flow meter is arranged at the connection of the first liquid discharge pump and the liquid discharge branch pipeline.

[0011] Preferably, discharge main pipes are installed at the bottoms of both the first centrifuge tank and the second centrifuge tank, and a switch control valve is installed on the discharge main pipe.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] By pre-mixing, stirring and transporting the raw materials for petrochemical additive production, the present utility model performs spiral cutting and feeding of solid reactants and fully stirs and mixes them with liquid additives. Subsequently, the residual solid particles in the mixed solution are fully filtered and removed, ensuring that the processed additive liquid is pure and free of impurities, and greatly improving the forming quality and purity of the petrochemical additive product. Description of the Drawings

[0014] Figure 1Schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 Schematic diagram of the side structure of the present utility model;

[0016] Figure 3 Schematic diagram of the local installation structure of the present utility model.

[0017] In the figure: 1, liquid additive storage tank; 2, liquid agent conveying pipe; 3, weighing hopper; 4, mixer tank; 5, screw feeding mechanism; 6, feeding hopper; 7, liquid discharge branch pipeline; 8, first reaction tank; 9, second reaction tank; 10, filter tank; 11, first centrifuge tank; 12, second centrifuge tank; 13, filter pump; 14, filter pipeline; 15, filtrate control valve; 16, filtrate branch pipe; 17, first liquid discharge pipe; 18, first liquid discharge pump; 19, flow meter; 20, drive motor; 21, flow control valve; 22, second liquid discharge pipe; 23, second liquid discharge pump; 24, third liquid discharge pipe; 25, switch control valve; 26, discharge main pipe. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0019] Please refer to Figures 1 - 3 , an embodiment provided by the present utility model: A continuous reaction device for petrochemical additives, including a liquid additive storage tank 1. The bottom end of the liquid additive storage tank 1 is connected to a weighing hopper 3 through a liquid agent conveying pipe 2. The lower end of the weighing hopper 3 is connected to a mixer tank 4 through a pipeline. A screw feeding mechanism 5 is installed on one side of the mixer tank 4. The bottom end of the mixer tank 4 is hermetically connected to a first liquid discharge pump 18 through a first liquid discharge pipe 17. The liquid outlet end of the first liquid discharge pump 18 is hermetically connected to a first reaction tank 8 and a second reaction tank 9 respectively through a liquid discharge branch pipeline 7. The bottom ends of the first reaction tank 8 and the second reaction tank 9 are hermetically connected to a second liquid discharge pump 23 through a second liquid discharge pipe 22. The liquid outlet end of the second liquid discharge pump 23 is hermetically connected to a filter tank 10 through a third liquid discharge pipe 24. The bottom end of the filter tank 10 is connected to a filter pump 13 through a pipeline. The liquid outlet end of the filter pump 13 is provided with a filter pipeline 14. The filter pipeline 14 is connected to a first centrifuge tank 11 and a second centrifuge tank 12 respectively through a filtrate branch pipe 16.

[0020] Furthermore, there are two screw feeding mechanisms 5. One end of the screw feeding mechanism 5 is provided with a feeding hopper 6, and the other end of the screw feeding mechanism 5 is provided with a discharge slot opening, and the discharge slot opening is located directly above the mixer tank 4.

[0021] Furthermore, drive motors 20 are installed at the tops of both the first reaction tank 8 and the second reaction tank 9. The output ends of the drive motors 20 are connected to stirring mechanisms arranged inside the first reaction tank 8 and the second reaction tank 9 through rotating shafts. A flow control valve 21 is installed on the liquid discharge branch pipeline 7.

[0022] Furthermore, centrifugal stirring motors are installed at the tops of both the first centrifuge tank 11 and the second centrifuge tank 12. The output ends of the centrifugal stirring motors are connected to centrifugal stirring mechanisms arranged inside the first centrifuge tank 11 and the second centrifuge tank 12 through rotating shafts.

[0023] Furthermore, a filtrate control valve 15 is installed on the filtrate branch pipe 16, and a flow meter 19 is arranged at the connection between the first liquid discharge pump 18 and the liquid discharge branch pipeline 7.

[0024] Furthermore, discharge main pipelines 26 are installed at the bottoms of both the first centrifuge tank 11 and the second centrifuge tank 12, and a switch control valve 25 is installed on the discharge main pipeline 26.

[0025] Working principle: During use, the bottom end of the liquid additive storage tank 1 is connected to a weighing hopper 3 through a liquid agent delivery pipe 2. The lower end of the weighing hopper 3 is connected to a mixer tank 4 through a pipeline. By quantitatively delivering the liquid solvent stored inside the liquid additive storage tank 1 into the mixer tank 4, a spiral feeding mechanism 5 is installed on one side of the mixer tank 4. By putting the solid solute to be reacted into the spiral feeding mechanism 5, through spiral cutting and feeding and stirring, the solid solute particles after cutting and crushing are delivered into the mixer tank 4 for reaction. After sufficient reaction, the mixed solution is delivered into the first reaction tank 8 and the second reaction tank 9 through the first liquid discharge pump 18. Subsequently, the reagents required for further reaction are added into the first reaction tank 8 and the second reaction tank 9. The drive motors 20 are started. The output ends of the drive motors 20 are connected to the stirring mechanisms arranged inside the first reaction tank 8 and the second reaction tank 9 through rotating shafts, so that the solution inside the first reaction tank 8 and the second reaction tank 9 can be further processed and reacted. Subsequently, the second liquid discharge pump 23 is started to deliver the reacted solution into the filter tank 10. The filter tank 10 is internally provided with filtering and adsorption mechanisms such as activated carbon to adsorb and filter the impurity particles in the solution. Finally, through the filter pump 13 and the filter pipeline 14, the preliminarily filtered solution is delivered into the first centrifuge tank 11 and the second centrifuge tank 12. Finally, the centrifugal stirring motors are started to drive the centrifugal stirring mechanisms to further centrifugally stir the solution.

[0026] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A petrochemical additive continuous reaction device, comprising a liquid additive storage tank (1), characterized in that: The bottom end of the liquid auxiliary agent storage tank (1) is connected to a weighing bucket (3) via a liquid agent delivery pipe (2), the lower end of the weighing bucket (3) is connected to a mixer tank (4) via a pipeline, a screw feeding mechanism (5) is installed on one side of the mixer tank (4), the bottom end of the mixer tank (4) is sealedly connected to a first liquid discharge pump (18) via a first liquid discharge pipe (17), the liquid outlet end of the first liquid discharge pump (18) is sealedly connected to a first reaction tank (8) and a second reaction tank (9) via a liquid discharge branch pipe (7), the first reaction tank (8) ) and the bottom end of the second reaction tank (9) are sealedly connected to a second liquid discharge pump (23) via a second liquid discharge pipe (22); the liquid outlet end of the second liquid discharge pump (23) is sealedly connected to a filter tank (10) via a third liquid discharge pipe (24); the bottom end of the filter tank (10) is connected to a filter pump (13) via a pipeline; the liquid outlet end of the filter pump (13) is provided with a filter pipe (14); the filter pipe (14) is respectively connected to the first centrifuge tank (11) and the second centrifuge tank (12) via a filtrate branch pipe (16).

2. A petrochemical additive continuous reaction device according to claim 1, characterized in that: The spiral feeding mechanisms (5) are provided with two, one end of the spiral feeding mechanisms (5) is provided with a feeding hopper (6), and the other end of the spiral feeding mechanisms (5) is provided with a discharge slot, and the discharge slot is located directly above the mixer tank (4).

3. A petrochemical additive continuous reaction device according to claim 1, characterized in that: A driving motor (20) is installed at the top of each of the first reaction tank (8) and the second reaction tank (9); the output end of the driving motor (20) is connected to a stirring mechanism arranged inside the first reaction tank (8) and the second reaction tank (9) via a rotating shaft; and a flow control valve (21) is installed on the drainage branch pipeline (7).

4. A petrochemical additive continuous reaction device according to claim 1, characterized in that: A centrifugal stirring motor is installed at the top of each of the first centrifuge tank (11) and the second centrifuge tank (12), and the output end of the centrifugal stirring motor is connected to a centrifugal stirring mechanism arranged inside the first centrifuge tank (11) and the second centrifuge tank (12) via a rotating shaft.

5. A petrochemical additive continuous reaction device according to claim 1, characterized in that: A filtrate control valve (15) is installed on the filtrate branch pipe (16), and a flow meter (19) is provided at the connection between the first drainage pump (18) and the drainage branch pipe (7).

6. A petrochemical additive continuous reaction device according to claim 1, characterized in that: A discharge main pipe (26) is installed at the bottom end of each of the first centrifuge tank (11) and the second centrifuge tank (12), and a switch control valve (25) is installed on the discharge main pipe (26).

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