An oil field dosing device

Abstract

The utility model relates to oilfield dosing technical field discloses an oilfield dosing device, including jar body, the top surface intercommunication of jar body is fixed with the dosing pipe, and the inside of jar body is provided with the stirring structure for mixing medicament, and the stirring structure includes the mounting sleeve fixed in the top surface of jar body inner wall, and the inside rotation of mounting sleeve is provided with the stirring shaft, and the outer circular wall surface of stirring shaft is fixed with fixed axle. The utility model discloses the setting of stirring structure, and the staff inputs the jar body through the dosing pipe to medicament, and starts motor, and motor drives the stirring shaft rotation through the connecting axle, and the stirring shaft rotation drives the stirring vane to mix and stir medicament, and the fixed axle slides in the ring groove while the stirring shaft rotates, thereby driving the stirring shaft reciprocating motion up and down, so that the stirring vane can move up and down and agitate the liquid of different height, so that the sediment is rolled up again, reduces the dead angle, improves the mixing efficiency and utilization of medicament, improves the device dosing effect.

Description

Technical Field

[0001] This utility model relates to the field of oilfield chemical dosing technology, and in particular to an oilfield chemical dosing device. Background Technology

[0002] In oilfield extraction, chemical agents are typically added to downhole or pipeline systems to improve crude oil recovery, reduce pipeline and equipment corrosion, minimize scaling and blockage, and control microbial contamination. These agents improve crude oil flowability, reduce pipeline blockage, extend equipment lifespan, and increase oil production efficiency. However, the dissolution and mixing of these agents are affected by various factors such as temperature and agitation. Some agents have poor solubility, impacting the overall dosing efficiency.

[0003] An existing oilfield chemical dosing device (publication number: CN209635892U) has at least the following drawbacks: Although the device improves the dissolution and mixing efficiency of chemicals in cold weather by heating and stirring the chemicals in the storage tank, when the device uses a stirrer to stir the chemicals, the stirring plate is vertically fixed on the stirring plate, which mainly generates radial flow but lacks axial convection. This results in poor stirring effect in the bottom or liquid surface area of ​​the tank, leading to uneven mixing of the chemicals in the storage tank and consequently poor drug delivery effect. Therefore, we propose this utility model. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an oilfield chemical dosing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An oilfield chemical dosing device includes a tank body with a chemical inlet pipe fixedly connected to the top surface of the tank body. The tank body has an internal stirring structure for mixing chemicals. The stirring structure includes a mounting sleeve fixed to the top surface of the inner wall of the tank body. A stirring shaft is rotatably mounted inside the mounting sleeve. A fixing shaft is fixed to the outer circular wall of the stirring shaft. An annular groove is formed on the inner circular wall of the mounting sleeve. The fixing shaft is slidably mounted inside the annular groove. A connecting shaft is connected to the top of the stirring shaft via a spline.

[0007] As a further embodiment of this utility model, a stirring blade is fixed to the bottom end of the stirring shaft, a motor is fixed to the top surface of the tank, and the output end of the motor passes through the top surface of the tank and is fixed to the top surface of the connecting shaft.

[0008] As a further embodiment of this utility model, a jacket is fixed to the outer circular wall of the tank, a heating coil is fixed inside the jacket, and a liquid replenishment pipe and a liquid drain pipe are fixedly connected to the outer circular wall of the jacket.

[0009] As a further embodiment of this utility model, a conveying pipe is fixedly connected to the bottom surface of the tank, and a metering pump is fixedly connected to the conveying pipe.

[0010] As a further embodiment of this utility model, a support frame is fixed to the outer circular wall of the jacket, and a thermometer is fixed to the top surface of the tank.

[0011] As a further embodiment of this utility model, an insulation layer is fixed inside the jacket, and the insulation layer is made of rock wool.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This oilfield chemical dosing device, through its stirring structure, allows workers to input chemicals into the tank via an inlet pipe, start the motor, and drive the stirring shaft to rotate via a connecting shaft. The rotation of the stirring shaft causes the stirring blades to mix the chemicals. While the stirring shaft rotates, the fixed shaft slides within an annular groove, causing the stirring shaft to move up and down repeatedly. This allows the stirring blades to move up and down, stirring the liquid at different heights, causing sediment to be re-rolled up, reducing dead zones, improving the mixing efficiency and utilization rate of the chemicals, and enhancing the dosing effect of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of an oilfield chemical dosing device proposed in this utility model;

[0015] Figure 2 This is a schematic diagram showing the disassembled structure of an oilfield chemical dosing device proposed in this utility model;

[0016] Figure 3 This is a schematic diagram of the disassembled structure of the tank body of an oilfield chemical dosing device proposed in this utility model;

[0017] Figure 4 This is a schematic diagram of the disassembled structure of the stirring shaft of an oilfield chemical dosing device proposed in this utility model;

[0018] Figure 5 This is a schematic diagram of the planar structure of the mounting sleeve of an oilfield chemical dosing device proposed in this utility model;

[0019] In the diagram: 1. Tank body; 2. Inlet pipe; 201. Mounting sleeve; 202. Stirring shaft; 203. Fixed shaft; 204. Annular groove; 205. Connecting shaft; 206. Stirring blades; 3. Jacket; 301. Heating coil; 302. Liquid replenishment pipe; 303. Drain pipe; 4. Delivery pipe; 401. Metering pump; 5. Support frame; 501. Thermometer; 6. Insulation layer. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Reference Figures 1-5 An oilfield chemical dosing device includes a tank body 1. A chemical inlet pipe 2 is fixedly connected to the top surface of the tank body 1. The tank body 1 is equipped with a stirring structure for mixing chemicals. The stirring structure includes a mounting sleeve 201 fixed to the top surface of the inner wall of the tank body 1. A stirring shaft 202 is rotatably mounted inside the mounting sleeve 201. A fixing shaft 203 is fixed to the outer circular wall of the stirring shaft 202. An annular groove 204 is formed on the inner circular wall of the mounting sleeve 201. The fixing shaft 203 is slidably mounted inside the annular groove 204. The top end of the stirring shaft 202 is connected to a connecting shaft 205 via a spline.

[0024] In this embodiment, a stirring blade 206 is fixed to the bottom end of the stirring shaft 202, and a motor is fixed to the top surface of the tank 1. The output end of the motor passes through the top surface of the tank 1 and is fixed to the top surface of the connecting shaft 205. With the stirring structure, the operator inputs the medicine into the tank 1 through the medicine inlet pipe 2 and starts the motor. The motor drives the stirring shaft 202 to rotate through the connecting shaft 205. The rotation of the stirring shaft 202 drives the stirring blade 206 to stir and mix the medicine. While the stirring shaft 202 rotates, the fixed shaft 203 slides in the annular groove 204, thereby driving the stirring shaft 202 to move up and down. This allows the stirring blade 206 to move up and down to stir the liquid at different heights, so that the sediment is rolled up again, reducing dead corners, improving the mixing efficiency and utilization rate of the medicine, and improving the drug delivery effect of the device.

[0025] In this embodiment, a jacket 3 is fixed to the outer circular wall of the tank 1, and a heating coil 301 is fixed inside the jacket 3. A replenishment pipe 302 and a drain pipe 303 are connected and fixed to the outer circular wall of the jacket 3. When administering medication in cold weather, the staff can inject heat transfer oil into the jacket 3 through the replenishment pipe 302 and start the heating coil 301 to heat the heat transfer oil and the medicine in the tank 1, thereby improving the dissolution of the particulate medicine in the medicine. The heat transfer oil can improve the heat conduction effect after being heated, and at the same time, the heat transfer oil can improve the heat preservation effect of the device.

[0026] In this embodiment, a delivery pipe 4 is fixedly connected to the bottom surface of the tank 1, and a metering pump 401 is fixedly connected to the delivery pipe 4. After the medicine is mixed and dissolved, the staff inputs the medicine into the drug through the delivery pipe 4, and the metering pump 401 controls the amount of medicine delivered.

[0027] In this embodiment, a support frame 5 is fixed to the outer circular wall of the jacket 3, and a thermometer 501 is fixed to the top surface of the tank 1. The support frame 5 can provide stable support for the tank 1, and the thermometer 501 can facilitate the staff to monitor the heating temperature inside the tank 1.

[0028] In this embodiment, an insulation layer 6 is fixed inside the jacket 3. The insulation layer 6 is made of rock wool, which can improve the insulation effect of the device.

[0029] Working Principle: When administering chemicals to an oilfield, workers use external equipment such as a screw conveyor or pump to feed solid or liquid chemicals into the tank 1 through the inlet pipe 2. The motor is then started, and it drives the stirring shaft 202 via the connecting shaft 205. The rotation of the stirring shaft 202 causes the stirring blades 206 to mix the chemicals. Simultaneously, the fixed shaft 203 slides within the annular groove 204, causing the stirring shaft 202 to move up and down. This allows the stirring blades 206 to move up and down, agitating the liquid at different heights, re-rolling up sediment, reducing dead zones, improving the mixing efficiency and utilization rate of the chemicals, and enhancing the overall efficiency of the equipment. Regarding drug efficacy, when administering medication in cold weather, staff can inject heat transfer oil into the jacket 3 through the replenishment pipe 302 and activate the heating coil 301 to heat the heat transfer oil and the medication in the tank 1, thereby improving the dissolution of the granular medication. Heating the heat transfer oil enhances its heat transfer effect and also improves the insulation effect of the device. After the medication is mixed and dissolved, staff can administer the medication through the delivery pipe 4. The metering pump 401 controls the medication delivery rate. The support frame 5 provides stable support for the tank 1. The thermometer 501 allows staff to monitor the heating temperature inside the tank 1. The insulation layer 6 further enhances the insulation effect of the device.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An oilfield chemical dosing device, comprising a tank (1), characterized in that: The top surface of the tank (1) is connected to and fixed with a drug inlet pipe (2). The tank (1) is equipped with a stirring structure for mixing the medicine. The stirring structure includes a mounting sleeve (201) fixed to the top surface of the inner wall of the tank (1). A stirring shaft (202) is rotatably arranged inside the mounting sleeve (201). A fixing shaft (203) is fixed on the outer circular wall of the stirring shaft (202). An annular groove (204) is opened on the inner circular wall of the mounting sleeve (201). The fixing shaft (203) is slidably arranged inside the annular groove (204). The top end of the stirring shaft (202) is connected to a connecting shaft (205) through a spline.

2. The oilfield chemical dosing device according to claim 1, characterized in that: The bottom end of the stirring shaft (202) is fixed with stirring blades (206), and the top surface of the tank (1) is fixed with a motor. The output end of the motor passes through the top surface of the tank (1) and is fixed to the top surface of the connecting shaft (205).

3. The oilfield chemical dosing device according to claim 2, characterized in that: The outer circular wall of the tank (1) is fixed with a jacket (3), and a heating coil (301) is fixed inside the jacket (3). The outer circular wall of the jacket (3) is connected to a replenishment pipe (302) and a drain pipe (303).

4. An oilfield chemical dosing device according to claim 3, characterized in that: The bottom surface of the tank (1) is connected to a conveying pipe (4), and the conveying pipe (4) is connected to a metering pump (401).

5. An oilfield chemical dosing device according to claim 4, characterized in that: The outer circular wall of the jacket (3) is fixed with a support frame (5), and the top surface of the tank (1) is fixed with a thermometer (501).

6. An oilfield chemical dosing device according to claim 5, characterized in that: The jacket (3) has an internal insulation layer (6) made of rock wool.

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