A self-contained metered multi-head chemical injection pry

Abstract

The utility model belongs to the field of petroleum and natural gas engineering, specifically is a kind of independent metering's multi -head chemical agent injection crowbar, including bottom plate, the bottom plate top one side fixed mounting is limit frame, the inside fixed mounting of limit frame has several material cylinders, the front middle part of limit frame is fixedly installed with positioning plate, the middle part of positioning plate is fixedly installed with injection cylinder, the inside movable mounting of injection cylinder has float plate, the top one side fixed mounting of float plate has T type rod, the top fixed mounting of injection cylinder has end cover, the middle part of end cover top is fixedly installed with liquid inlet pipe, the surface movable mounting of liquid inlet pipe has assembly plate. Through the structural design of material cylinder, injection cylinder, float plate, T type rod, assembly plate, pressure sensor, the function of high-precision measurement is realized, the injection amount of chemical agent can be accurately controlled, and the disadvantages of chemical agent injection deviation caused by multiple measurement systems are avoided.

Description

Technical Field

[0001] This utility model relates to the field of oil and gas engineering, specifically to an independently metered multi-head chemical agent injection skid. Background Technology

[0002] The independently metered multi-head chemical agent injection skid is a highly integrated modular device mainly used in the fields of petroleum, natural gas, chemical industry, and water treatment. It can simultaneously and independently and accurately meter and inject multiple chemical agents. Its core feature is that the flow rate of each chemical agent can be individually controlled without interference, making it suitable for industrial scenarios that require complex ratios or dynamic adjustments.

[0003] Currently, the multi-head chemical injection skids with independent metering commonly found on the market usually employ multiple independent metering systems (high-precision pumps, flow meters, and control systems), resulting in a cost that is much higher than that of traditional single-head injection skids. At the same time, multiple metering systems may produce slight deviations due to hardware structure, which in turn increases the overall complexity of the equipment.

[0004] Therefore, a multi-head chemical injection skid with independent metering is proposed to address the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies and the high complexity of equipment, this utility model proposes an independently metered multi-head chemical agent injection skid.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a multi-head chemical agent injection skid with independent metering, including a base plate, a limiting frame fixedly installed on one side of the top of the base plate, several material cylinders fixedly installed inside the limiting frame, a positioning plate fixedly installed in the middle of the front of the limiting frame, an injection cylinder fixedly installed in the middle of the positioning plate, a float plate movably installed inside the injection cylinder, a T-shaped rod fixedly installed on one side of the top of the float plate, an end cap fixedly installed on the top of the injection cylinder, an inlet pipe fixedly installed in the middle of the top of the end cap, an assembly plate movably installed on the surface of the inlet pipe, and a pressure sensor fixedly installed on one side of the bottom of the assembly plate.

[0007] Preferably, a spring is fitted on the surface of the inlet pipe and at the bottom of the assembly plate, and a frame cover is fixedly installed on the top of the limiting frame.

[0008] Preferably, a drive motor is fixedly installed on one side of the top of the frame cover, the output end of the drive motor is set as a rotating shaft, and an eccentric block is fixedly installed at the end of the rotating shaft, with the surface of the eccentric block fitting the assembly plate.

[0009] Preferably, a cylinder cover is fixedly installed on the top of the cylinder, a liquid guide tube is fixedly installed inside the cylinder cover, and a first electric valve is fixedly installed at the end of the liquid guide tube. The output end of the first electric valve is fixedly connected to the outer wall of the injection cylinder.

[0010] Preferably, a second electric valve is fixedly installed at the end of the inlet pipe and at the top of the end cap, and a storage tank is fixedly installed at the top of the inlet pipe.

[0011] Preferably, the front of the liquid storage tank is provided with a transparent window, the top of the liquid storage tank is fixedly installed with a water inlet pipe, and the bottom of the injection cylinder is fixedly installed with an injection pipe.

[0012] The beneficial effects of this utility model are:

[0013] 1. This utility model achieves high-precision metering through the structural design of the material cylinder, injection cylinder, float plate, T-shaped rod, assembly plate, and pressure sensor, and through the cooperation between the structures. This enables precise control of the chemical agent injection amount, while avoiding the drawbacks of chemical agent injection deviation caused by multiple metering systems, and solving the problem of high equipment complexity.

[0014] 2. This utility model, through the cooperation of the drive motor, rotating shaft, and eccentric block, facilitates the use of eccentric rotation to provide holding force on the assembly plate, thereby achieving the function of adjusting the height of the pressure sensor so as to adjust the injection amount of chemical agent according to the usage requirements. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a frontal perspective three-dimensional schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the limiting frame of this utility model;

[0018] Figure 3 This is a partial structural breakdown diagram of the present invention;

[0019] Figure 4 This is a bottom view of the assembly plate structure of this utility model.

[0020] In the diagram: 1. Base plate; 2. Limiting frame; 3. Material cylinder; 4. Positioning plate; 5. Injection cylinder; 6. Float plate; 7. T-shaped rod; 8. End cap; 9. Liquid inlet pipe; 10. Assembly plate; 11. Pressure sensor; 12. Spring; 13. Frame cover; 14. Drive motor; 15. Rotating shaft; 16. Eccentric block; 17. Cylinder cover; 18. Liquid guide pipe; 19. First electric valve; 20. Second electric valve; 21. Storage tank; 22. Transparent window; 23. Water inlet pipe; 24. Injection pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] This application discloses an independently metered multi-head chemical agent injection skid, including a base plate 1. A limiting frame 2 is fixedly installed on one side of the top of the base plate 1. Several material cylinders 3 are fixedly installed inside the limiting frame 2. A positioning plate 4 is fixedly installed in the middle of the front of the limiting frame 2. An injection cylinder 5 is fixedly installed in the middle of the positioning plate 4. A float plate 6 is movably installed inside the injection cylinder 5. A T-shaped rod 7 is fixedly installed on one side of the top of the float plate 6. An end cap 8 is fixedly installed on the top of the injection cylinder 5. An inlet pipe 9 is fixedly installed in the middle of the top of the end cap 8. An assembly plate 10 is movably installed on the surface of the inlet pipe 9. A pressure sensor 11 is fixedly installed on one side of the bottom of the assembly plate 10.

[0024] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 Through the structural design of the material cylinder 3, injection cylinder 5, float plate 6, T-shaped rod 7, assembly plate 10, and pressure sensor 11, and through the cooperation between the structures, the function of high-precision metering is realized. This enables precise control of the amount of chemical agent injected, while avoiding the drawbacks of chemical agent injection deviation caused by multiple metering systems.

[0025] A spring 12 is fitted on the surface of the inlet pipe 9 and at the bottom of the assembly plate 10, and a frame cover 13 is fixedly installed on the top of the limiting frame 2.

[0026] Reference Figure 1 and Figure 3The spring 12 is easily fitted onto the surface of the inlet pipe 9 and located at the bottom of the assembly plate 10, providing a reset elastic force for the assembly plate 10. After the effect of the eccentric block 16 disappears, the assembly plate 10 returns to its initial position, ensuring the stability and repeatability of the system operation. The frame cover 13 is easily fixed to the top of the limit frame 2, protecting the internal components, and at the same time providing an installation platform for the drive motor 14, ensuring the stable operation of the drive motor 14.

[0027] A drive motor 14 is fixedly installed on one side of the top of the frame cover 13. The output end of the drive motor 14 is set as a rotating shaft 15. An eccentric block 16 is fixedly installed at the end of the rotating shaft 15. The surface of the eccentric block 16 is attached to the assembly plate 10.

[0028] Reference Figure 1 Through the cooperation of the drive motor 14, the rotating shaft 15, and the eccentric block 16, the eccentric rotation can be used to provide a holding force on the assembly plate 10, thereby achieving the function of adjusting the height of the pressure sensor 11 so as to adjust the amount of chemical agent injected according to the usage requirements.

[0029] A cylinder cover 17 is fixedly installed on the top of the cylinder 3. A liquid guide tube 18 is fixedly installed inside the cylinder cover 17. A first electric valve 19 is fixedly installed at the end of the liquid guide tube 18. The output end of the first electric valve 19 is fixedly connected to the outer wall of the injection cylinder 5.

[0030] Reference Figure 1 and Figure 2 The cap 17 facilitates sealing the top of the material cylinder 3 to prevent chemical evaporation and leakage, while also providing an installation interface for the liquid guide pipe 18 to ensure the sealing of the chemical delivery channel. The liquid guide pipe 18 is easily installed inside the cap 17, connecting the material cylinder 3 and the injection cylinder 5, and delivering the chemical in the material cylinder 3 to the injection cylinder 5. The first electric valve 19 at its end controls the flow rate of the chemical. The first electric valve 19 is easily installed at the end of the liquid guide pipe 18, and is opened and closed by the control system to precisely control the amount of chemical delivered from the material cylinder 3 to the injection cylinder 5, ensuring injection accuracy.

[0031] A second electric valve 20 is fixedly installed at the end of the inlet pipe 9 and at the top of the end cap 8, and a storage tank 21 is fixedly installed at the top of the inlet pipe 9.

[0032] Reference Figure 1 , Figure 2 , Figure 3 The second electric valve 20 is easily installed at the end of the inlet pipe 9 and located on the top of the end cap 8 to control the process of replenishing the chemical agent from the storage tank 21 to the injection cylinder 5, ensuring a continuous supply of chemical agent in the injection cylinder 5. The storage tank 21 provides space for storing cleaning solution so that it can be replenished in time to clean the inside of the injection cylinder 5 and avoid cross-contamination between different chemical agents.

[0033] The front of the storage tank 21 is provided with a transparent viewing window 22, the top of the storage tank 21 is fixedly installed with a water inlet pipe 23, and the bottom of the injection cylinder 5 is fixedly installed with an injection pipe 24.

[0034] Reference Figure 3 and Figure 4 The transparent window 22 is conveniently located on the front of the storage tank 21, allowing operators to directly observe the liquid level of the cleaning solution in the storage tank 21 and replenish it in a timely manner to ensure uninterrupted cleaning work. The injection pipe 24 is conveniently fixed to the bottom of the injection cylinder 5 to deliver the metered chemical agent to the target location and complete the chemical agent injection work.

[0035] Working principle: When using this device, different types of chemical agents are stored separately in the material cylinder 3. The drive motor 14 is started, and the drive motor 14 drives the eccentric block 16 to rotate via the rotating shaft 15. During the rotation of the eccentric block 16, its surface pushes the assembly plate 10 downwards. The assembly plate 10 then drives the pressure sensor 11 to descend synchronously to a predetermined position. After the first electric valve 19 is opened, the chemical agent in the material cylinder 3 flows into the injection cylinder 5 through the liquid guide pipe 18 under the action of gravity or pressure. As the chemical agent is continuously injected, the liquid level in the injection cylinder 5 rises, and the float plate 6... Under the action of buoyancy, it floats upward, driving the T-shaped rod 7 to rise together. When the float plate 6 rises to the set height, the T-shaped rod 7 contacts the pressure sensor 11. The pressure sensor 11 converts the pressure change into an electrical signal and feeds it back to the control system. The control system then closes the first electric valve 19 to stop the chemical injection. At this time, the chemical dosage in the injection cylinder 5 is the set injection amount. By opening the injection pipe 24, the metered chemical is discharged. By opening the second electric valve 20, the cleaning fluid is injected into the injection cylinder 5 through the inlet pipe 9, and the cleaning of the injection cylinder 5 is completed.

[0036] 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. A multi-head chemical agent injection skid with independent metering, characterized in that: Includes a base plate (1); a limiting frame (2) is fixedly installed on one side of the top of the base plate (1), several material cylinders (3) are fixedly installed inside the limiting frame (2), a positioning plate (4) is fixedly installed in the middle of the front of the limiting frame (2), an injection cylinder (5) is fixedly installed in the middle of the positioning plate (4), a float plate (6) is movably installed inside the injection cylinder (5), a T-shaped rod (7) is fixedly installed on one side of the top of the float plate (6), an end cap (8) is fixedly installed on the top of the injection cylinder (5), an inlet pipe (9) is fixedly installed in the middle of the top of the end cap (8), an assembly plate (10) is movably installed on the surface of the inlet pipe (9), and a pressure sensor (11) is fixedly installed on one side of the bottom of the assembly plate (10).

2. The independently metered multi-head chemical agent injection skid according to claim 1, characterized in that: A spring (12) is fitted on the surface of the inlet pipe (9) and at the bottom of the assembly plate (10), and a frame cover (13) is fixedly installed on the top of the limiting frame (2).

3. The independently metered multi-head chemical agent injection skid according to claim 2, characterized in that: A drive motor (14) is fixedly installed on one side of the top of the frame cover (13). The output end of the drive motor (14) is set as a rotating shaft (15). An eccentric block (16) is fixedly installed at the end of the rotating shaft (15). The surface of the eccentric block (16) is attached to the assembly plate (10).

4. The independently metered multi-head chemical agent injection skid according to claim 1, characterized in that: A cylinder cover (17) is fixedly installed on the top of the cylinder (3). A liquid guide tube (18) is fixedly installed inside the cylinder cover (17). A first electric valve (19) is fixedly installed at the end of the liquid guide tube (18). The end of the output end of the first electric valve (19) is fixedly connected to the outer wall of the injection cylinder (5).

5. The independently metered multi-head chemical agent injection skid according to claim 1, characterized in that: A second electric valve (20) is fixedly installed at the end of the inlet pipe (9) and at the top of the end cap (8), and a storage tank (21) is fixedly installed at the top of the inlet pipe (9).

6. The independently metered multi-head chemical agent injection skid according to claim 5, characterized in that: The front of the liquid storage tank (21) is provided with a transparent window (22), the top of the liquid storage tank (21) is fixedly installed with a water inlet pipe (23), and the bottom of the injection cylinder (5) is fixedly installed with an injection pipe (24).

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