An integrated device for drug mixing and injection

Abstract

This utility model discloses an integrated device for drug mixing and injection, comprising: a skid-mounted base; an injection sleeve mounted on the skid-mounted base; a pressure inlet at one end of the injection sleeve and a drug injection pipe at the opposite end; a piston disposed within the injection chamber of the injection sleeve, which, under pressure, forces the drug within the injection chamber out of the drug injection pipe; a hopper, the discharge end of which communicates with the injection chamber of the injection sleeve; and a stirring mechanism, the lower end of which extends into the hopper. This utility model integrates drug mixing and injection, facilitating installation and relocation in well site environments.

Description

Technical Field

[0001] This utility model relates to the technical field of oil and gas well reagent mixing and injection equipment, specifically to an integrated reagent mixing and injection device. Background Technology

[0002] Various oil and gas well sites require on-site preparation of reagents before injection into the wellbore to meet various on-site construction requirements. However, existing reagent mixing and injection equipment are two separate units, which necessitates performing reagent mixing and injection on different equipment. Injecting the mixed reagent into the injection equipment is difficult, increasing the operational complexity. Furthermore, the separate equipment units increase the difficulty of relocating and installing the equipment, especially in well site environments with limited space. Therefore, this application provides an integrated reagent mixing and injection device. Utility Model Content

[0003] To address the aforementioned issues, this application provides an integrated device for drug mixing and injection, which combines drug mixing and injection into one unit. It is easy to install and move in the well site environment, reducing operational difficulty.

[0004] The objective of this utility model is achieved through the following technical solution: an integrated device for drug mixing and injection, comprising:

[0005] Skid mount:

[0006] An injection sleeve is mounted on the skid mount; one end of the injection sleeve is provided with a pressure inlet, and the opposite end is provided with a drug injection tube; a piston is provided in the injection chamber of the injection sleeve, and under pressure, the piston can squeeze the drug in the injection chamber out of the drug injection tube.

[0007] The hopper has its discharge end connected to the injection cavity of the injection sleeve;

[0008] A stirring mechanism, the lower end of which extends into the hopper.

[0009] The pressure inlet of the injection sleeve is equipped with a first valve, and the drug injection pipe is equipped with a second valve.

[0010] The drug injection tube is provided with a reverse thrust port, and a third valve is provided on the reverse thrust port.

[0011] The mixing mechanism includes a mounting column mounted on a skid mount, a mixing motor mounted on the mounting column via a mounting bracket, and a mixer mounted on the main shaft of the mixing motor; the mixer can extend into the hopper.

[0012] The mounting column is provided with a shaft, and the mounting bracket is provided with a sliding sleeve sleeved on the shaft, the sliding sleeve being able to move up and down along the shaft.

[0013] The top of the mounting column is provided with a guide wheel, and a lifting component is connected to the mounting frame. The other end of the lifting component passes around the guide wheel and is connected to a counterweight.

[0014] The mounting bracket is equipped with a handle.

[0015] The mounting column includes a fixed column and a rotating column; the top of the fixed column is provided with a mounting column, and a thrust bearing is installed on the mounting column; the lower end of the rotating column is installed on the mounting column, and a rotating bearing is provided between the rotating column and the mounting column; the mounting bracket is provided on the rotating column.

[0016] The fixed column is provided with a limit post, and the mounting bracket is provided with a stop bar. When the rotating column rotates, the stop bar can abut against the limit post to limit the rotation angle of the rotating column.

[0017] The limiting post is equipped with a support post for supporting the mounting frame.

[0018] Compared with the prior art, this application has the following beneficial effects:

[0019] (1) This utility model integrates drug mixing and injection, and is easy to install and transfer in the well site environment.

[0020] (2) The stirring mechanism of this utility model can be lifted upwards to facilitate cleaning of the hopper.

[0021] Some of the additional features of this application will be described in the following description. These additional features will become apparent to those skilled in the art upon examination of the following description and the accompanying drawings, or upon understanding the production or operation of the embodiments. The features disclosed in this application can be implemented and achieved through the practice or use of various methods, means, and combinations thereof with respect to the specific embodiments described below. Attached Figure Description

[0022] The accompanying drawings, which are provided to further illustrate this application and constitute a part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute a limitation thereof. In the drawings, the same reference numerals denote the same components.

[0023] Figure 1 This is a cross-sectional view of the present invention.

[0024] Figure 2 This is a front view of the stirring mechanism of this utility model.

[0025] Figure 3 This is a side view of the stirring mechanism of this utility model.

[0026] Figure 4 This is a cross-sectional view of the mounting column of this utility model.

[0027] The reference numerals in the above figures are as follows: 1-skid mount, 2-piston, 3-forklift hole, 4-injection sleeve, 5-first valve, 6-second valve, 7-chemical injection pipe, 8-pressure gauge, 9-third valve, 10-fourth valve, 11-hopper, 12-mixing mechanism, 13-fixed column, 14-mixer, 15-limiting column, 16-support column, 17-mixing motor, 18-rotating column, 19-shaft, 20-lifting component, 21-guide wheel, 22-mounting bracket, 23-handle, 24-sliding sleeve, 25-counterweight, 26-stop bar, 27-rotary bearing, 28-mounting column, 29-thrust bearing. Detailed Implementation

[0028] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments.

[0029] Example

[0030] like Figure 1 As shown, this embodiment discloses an integrated device for drug mixing and injection, comprising: a skid-mounted base 1, an injector, a hopper 11, and a stirring mechanism 12. The injector is bolted to the skid-mounted base 1, the discharge end of the hopper 11 is connected to the injection chamber of the injector, and the lower end of the stirring mechanism 12 extends into the hopper 11. During operation, the drug is loaded into the hopper 11, and the stirring mechanism 12 stirs the drug in the hopper 11 to mix the drug. The mixed drug falls into the injector and is injected into the well.

[0031] Specifically, the injector includes an injection sleeve 4; one end of the injection sleeve 4 is provided with a pressure inlet, and the opposite end is provided with a drug injection pipe 7. The inside of the injection sleeve 4 is a hollow injection chamber, and a piston 2 is installed inside the injection chamber. A first valve 5 is installed on the pressure inlet of the injection sleeve 4, and a second valve 6 is installed on the drug injection pipe 7. In use, the pressure inlet is connected to an external hydraulic device, and the drug injection pipe 7 is connected to a pipeline extending into the well. When the hydraulic device injects clean water into the injection sleeve 4 through the pressure inlet, the high pressure pushes the piston 2 towards the drug injection pipe 7, so that the drug is injected into the well along the pipeline after passing through the drug injection pipe 7. Of course, a pneumatic pressure device can also be used to drive the piston during use.

[0032] The injection pipe 7 is equipped with a thrust return port, which has a third valve 9. During operation, the thrust return port is also connected to an external hydraulic system. After injection, the hydraulic system injects clean water through the thrust return port, pushing the piston 2 back to its original position. Valves can be installed on both sides of the thrust return port. During thrust return, the valve closer to the wellbore can be closed to prevent thrust fluid from entering the well along the pipe.

[0033] The hopper 11 is mounted on top of the injection sleeve 4 via a mounting bracket, and its bottom outlet is connected to the injection chamber of the injection sleeve 4. Specifically, the outlet of the hopper 11 can be connected to the end of the injection sleeve 4 near the drug injection pipe 7. A fourth valve 10 can be installed on the outlet of the hopper 11. When the fourth valve 10 is opened, the drug in the hopper 11 can fall into the injection chamber of the injection sleeve 4. During the stirring process, the fourth valve 10 can be closed. All of the above valves can be ball valves.

[0034] In addition, a flexible hose can be connected between the discharge port of hopper 11 and the connecting pipe of injection sleeve 4 to prevent the vibration generated by the stirring mechanism 12 during stirring from affecting the injector and valve.

[0035] A pressure gauge 8 can also be installed on the agent injection pipe 7. When the agent is injected into the well, the pressure gauge 8 can detect the pressure inside the well.

[0036] The hopper 11 has a double-layer heating structure, consisting of an inner layer and an outer layer, forming a cavity between them. The outer layer has an inlet communicating with the cavity, allowing hot water to be added to the cavity to heat the medicine inside the hopper 11. Alternatively, a heating wire can be installed inside the cavity to heat the medicine. A temperature sensor can also be installed inside the hopper 11 to detect the temperature of the medicine; however, the sensor's location must avoid the stirring mechanism 12, which will not be discussed further here. The hopper 11 can also have graduations to control the amount of medicine added.

[0037] like Figure 2 , 3 As shown, the stirring mechanism 12 includes a mounting column mounted on the skid base 1, a stirring motor 17 mounted on the mounting column via a mounting bracket 22, and a stirrer 14 mounted on the main shaft of the stirring motor 17. The stirrer 14 can extend into the hopper 11, and when the stirring motor 17 drives the stirrer 14 to rotate, the stirrer 14 stirs and mixes the medicine in the hopper 11.

[0038] As another implementation, a shaft 19 is provided on the mounting column, and a sliding sleeve 24 is provided on the mounting bracket 22, which is sleeved on the shaft 19. The sliding sleeve 24 can move up and down along the shaft 19. Specifically, two mounting plates are provided at intervals on the upper and lower parts of the mounting column, and the two ends of the shaft 19 are respectively fixed to the two mounting plates, such as... Figure 2 , 3 As shown. A sliding bearing is provided inside the sliding sleeve 24. The sliding bearing is installed on the shaft 19, so that the sliding sleeve 24 slides with the shaft 19. The sliding sleeve 24 can move up and down along the shaft 19, thereby allowing the mounting frame 22, the stirring motor 17 and the stirrer 14 to move up and down as a whole.

[0039] In addition, such as Figure 4 As shown, the mounting column includes a fixed column 13 and a rotating column 18. A mounting column 28 is provided at the top of the fixed column 13, and a thrust bearing 29 is mounted on the mounting column 28. The lower end of the rotating column 18 is mounted on the mounting column 28, and a rotating bearing 27 is provided between the rotating column 18 and the mounting column 28. Thus, the rotating column 18 can rotate relative to the fixed column 13, and the mounting bracket 22 is mounted on the rotating column 18. Specifically, the surface of the rotating column 18 can be provided with vertically distributed slide rails, and the sliding sleeve 24 is provided with a slider that cooperates with the slide rails. Therefore, the mounting bracket 22 can only move vertically relative to the rotating column 18, and under the constraint of the slide rails and the slider, the mounting bracket 22 and the rotating column 18 can rotate synchronously.

[0040] In addition, a limiting post 15 is provided on the side of the fixed post 13, and a stop bar 26 is provided on the mounting bracket 22. When the rotating post 18 rotates, the stop bar 26 can abut against the limiting post 15 to limit the rotation angle of the rotating post 18. A support post 16 for supporting the mounting bracket 22 is provided on the limiting post 15.

[0041] A handle 23 can also be installed on the mounting frame 22. With this structure, when stirring is not required or the hopper needs cleaning, the operator holds the handle 23 and lifts it upwards. The mounting frame 22, stirring motor 17, and agitator 14 move upwards as a whole. When the agitator 14 is higher than the top of the hopper 11, the mounting frame 22 is rotated to one side, causing the agitator 14 to deviate from the hopper 11. After the stop bar 26 abuts against the limiting post 15, the mounting frame 22 is slowly lowered, so that it is supported on the top of the support post 16. At this time, the stirring mechanism is in an idle position, and the agitator 14 is still higher than the hopper 11, making it convenient to clean the hopper 11. When stirring is required, the mounting frame 22 can be slightly lifted and rotated back to its original position, so that the agitator 14 is above the hopper 11. Then, the mounting frame 22 is slowly lowered until it abuts against the mounting plate below. At this time, the stirring mechanism is in the working position.

[0042] In practical implementation, a limiting post can also be set on the front of the fixed column 13. When the stop bar 26 abuts against the limiting post on the front of the fixed column 13, the agitator 14 is exactly located on the center line of the hopper 11, at which point the mounting frame 22 can be slowly lowered. Alternatively, positioning blocks can be set on both the front and side of the fixed column 13, and insert blocks can be set on the rotating column 18. Both the insert blocks and positioning blocks have insertion holes. When the agitator is in the idle position, the insert blocks correspond vertically to the positioning blocks on the side of the fixed column 13. Pins can be inserted sequentially into the insertion holes on the insert blocks and positioning blocks to fix the agitator in the idle position. When the agitator is in the working position, the insert blocks correspond vertically to the positioning blocks on the front of the fixed column 13. Pins can be inserted sequentially into the insertion holes on the insert blocks and positioning blocks to fix the agitator in the working position and prevent the agitator from swinging during agitation.

[0043] In addition, a guide wheel 21 is provided at the top of the mounting column, and a lifting member 20 is connected to the mounting frame 22. The other end of the lifting member 20 passes over the guide wheel 21 and is connected to a counterweight 25. The weight of the counterweight 25 is less than the total weight of the stirring motor 17, mounting frame 22, sliding sleeve 24, stirrer 14, handle 23, and other components. Therefore, the weight of the counterweight 25 alone will not be enough to lift the mounting frame 22. The operator must manually lift the handle to lift the mounting frame 22. In this embodiment, the weight of the counterweight 25 itself can assist in lifting the mounting frame 22, so that the operator does not need to exert much force to lift the mounting frame 22. Furthermore, when lowering the mounting frame 22, the pulling force of the counterweight 23 will help prevent the mounting frame 22 from falling rapidly. The lifting member 20 can be implemented using a rope or chain.

[0044] In specific settings, a guide rail can be set on the rotating column 18, and a slider (not shown in the figure) that cooperates with the guide rail can be set on the counterweight 25. Therefore, the counterweight 25 can only move up and down along the rotating column 18 and cannot swing, which can make the counterweight 25 more stable when the rotating column 18 rotates.

[0045] In practice, the skid mount 1 can be equipped with forklift holes 3 and lifting lugs to facilitate the movement of the entire equipment using forklifts or cranes. Explosion-proof lights can also be installed on the skid mount 1 to facilitate nighttime operation of the equipment.

[0046] It should be noted that all features disclosed in this specification, or all steps in all methods or processes disclosed, may be combined in any way, except for mutually exclusive features and / or steps.

[0047] Furthermore, the specific embodiments described above are exemplary. Those skilled in the art can devise various solutions inspired by the disclosure of this utility model, and these solutions all fall within the scope of this utility model and its protection. Those skilled in the art should understand that this utility model specification and its drawings are illustrative and not intended to limit the scope of the claims. The scope of protection of this utility model is defined by the claims and their equivalents.

Claims

1. A device for integrated drug mixing and injection, characterized in that, include: Skid mount (1): An injection sleeve (4) is installed on the skid mount (1); one end of the injection sleeve (4) is provided with a pressure inlet, and the other end is provided with a drug injection tube (7); a piston (2) is provided in the injection chamber of the injection sleeve (4), and under pressure, the piston (2) can squeeze the drug in the injection chamber out of the drug injection tube (7); The hopper (11) has its discharge end connected to the injection cavity of the injection sleeve (4); The stirring mechanism (12) extends into the hopper (11) at its lower end.

2. The integrated drug mixing and injection device according to claim 1, characterized in that, The pressure inlet of the injection sleeve (4) is provided with a first valve (5), and the drug injection pipe (7) is provided with a second valve (6).

3. The integrated drug mixing and injection device according to claim 2, characterized in that, The drug injection tube (7) is provided with a reverse thrust port, and the reverse thrust port is provided with a third valve (9).

4. The integrated drug mixing and injection device according to claim 1, characterized in that, The stirring mechanism (12) includes a mounting column set on a skid mount (1), a stirring motor (17) mounted on the mounting column via a mounting bracket (22), and a stirrer (14) mounted on the main shaft of the stirring motor (17); the stirrer (14) can extend into the hopper (11).

5. The integrated drug mixing and injection device according to claim 4, characterized in that, The mounting post is provided with a shaft (19), and the mounting bracket (22) is provided with a sliding sleeve (24) sleeved on the shaft (19). The sliding sleeve (24) can move up and down along the shaft (19).

6. The integrated drug mixing and injection device according to claim 5, characterized in that, The top of the mounting column is provided with a guide wheel (21), and a lifting member (20) is connected to the mounting frame (22). The other end of the lifting member (20) passes around the guide wheel (21) and is connected to a counterweight (25).

7. The integrated pharmaceutical mixing and injection device according to claim 6, characterized in that, A handle (23) is provided on the mounting bracket (22).

8. The integrated pharmaceutical mixing and injection device according to any one of claims 4-7, characterized in that, The mounting column includes a fixed column (13) and a rotating column (18); the top of the fixed column (13) is provided with a mounting column (28), a thrust bearing (29) is installed on the mounting column (28), the lower end of the rotating column (18) is installed on the mounting column (28), and a rotating bearing (27) is provided between the rotating column (18) and the mounting column (28); the mounting bracket (22) is provided on the rotating column (18).

9. The integrated pharmaceutical mixing and injection device according to claim 8, characterized in that, The fixed column (13) is provided with a limiting column (15), and the mounting bracket (22) is provided with a stop bar (26). When the rotating column (18) rotates, the stop bar (26) can abut against the limiting column (15) to limit the rotation angle of the rotating column (18).

10. The integrated pharmaceutical mixing and injection device according to claim 9, characterized in that, The limiting post (15) is provided with a support post (16) for supporting the mounting frame (22).

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