Carbon sequestration injection device with anti-backflow
By designing an anti-backflow mechanism in the carbon sequestration injection device, and utilizing the cooperation of a one-way valve plate and a piston plate, the problems of backflow and backflow during gas injection are solved, and the safe and smooth delivery of gas is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI CARBON DAOFENG TECHNOLOGY CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-08-04
AI Technical Summary
During carbon sequestration, backflow and backflow problems can easily occur when gas is injected into the storage site.
A backflow-proof carbon storage injection device was designed, which includes an anti-backflow mechanism. It utilizes the cooperation of a one-way valve plate and a piston plate to control the unidirectional flow of gas through gas pressure, and ensures sealing through a sealing gasket and a limiting ring.
It effectively prevents gas backflow, ensures the safety and sealing of the gas transportation process, avoids gas backflow, and enhances the smoothness and safety of gas transportation.
Smart Images

Figure CN224593068U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of carbon encapsulation and injection devices, specifically a carbon encapsulation and injection device equipped with anti-backflow protection. Background Technology
[0002] Carbon sequestration is the process of capturing and compressing carbon dioxide from the atmosphere, transporting it to a designated location for long-term storage, thereby reducing the concentration of carbon dioxide in the atmosphere. Carbon sequestration injection devices are key equipment that transport and inject the captured carbon dioxide into specific geological structures or storage sites to achieve long-term isolation of carbon dioxide from the atmosphere.
[0003] For example, patent CN219482137U discloses a carbon neutralization and carbon reduction sealing device, including a filter box. Through the structure of this device, the filter can filter and remove particles and moisture from the exhaust gas. At the same time, the use of an extractor and a stirring device increases the contact area between the amine liquid and carbon dioxide. The circulation component allows carbon dioxide to repeatedly contact with the amine liquid, which can maximize the absorption of carbon dioxide by the amine liquid. Meanwhile, the carbon dioxide absorbed by the extractor is discharged into the gas storage tank, which facilitates the transfer of carbon dioxide. The structure is simple and the operation is simple. The use of amine liquid can ensure the concentration of carbon dioxide inside the gas storage tank. However, during carbon sealing, gas needs to be injected into the storage area to achieve carbon dioxide isolation. During the injection of gas, backflow of gas is likely to occur, which may lead to gas backflow.
[0004] To address the aforementioned issues, there is an urgent need for innovative designs based on existing carbon sequestration injection devices. Utility Model Content
[0005] The purpose of this invention is to provide a carbon sequestration injection device with anti-backflow protection, in order to solve the problem mentioned in the background art that when carbon sequestration is carried out, gas needs to be injected into the storage area to isolate carbon dioxide. However, when injecting the gas, backflow may occur, which may lead to gas backflow.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a carbon storage injection device with anti-backflow protection, comprising a base, brackets mounted on both sides of the top of the base, a gas compressor mounted on the top of the two brackets, an inlet pipe connected to one end of the gas compressor, and an outlet pipe connected to the other end of the gas compressor; a support ring mounted on one side of the base, a conveying pipe slidably connected inside the support ring, and an outer pipe connected to one end of the conveying pipe; an anti-backflow mechanism for preventing gas backflow is provided inside the outer pipe.
[0007] Furthermore, the anti-backflow mechanism includes a connecting pipe, which is installed at one end of the outer pipe and is fixedly connected to the outer pipe at a right angle. A spring is fixedly connected to the inner bottom wall of the connecting pipe, and a piston plate is installed at the top of the spring. The piston plate is slidably connected to the inside of the connecting pipe, and a limit ring is installed inside the connecting pipe. The connecting pipe is movably abutted against the bottom of the limit ring.
[0008] Furthermore, a connecting rod is rotatably connected to the top of the piston plate via a rotating seat, one end of the connecting rod is rotatably connected to a one-way valve plate, and one side of the one-way valve plate is rotatably connected to a connecting pipe.
[0009] Furthermore, one end of the exhaust pipe and the delivery pipe are respectively provided with a connecting mechanism for connecting the connecting pipe and the outer pipe. The connecting mechanism includes two first fixing frames, which are respectively fixedly connected to one end of the exhaust pipe and the delivery pipe. One end of the connecting pipe and the outer pipe is fixedly connected to a second fixing frame. Screws are installed around the first fixing frames, and threaded holes are opened around the second fixing frames.
[0010] Furthermore, a protective sleeve is installed on one side of the second fixing frame, and an annular sealing gasket is installed inside the protective sleeve. A sealing groove matching the annular sealing gasket is opened inside the first fixing frame.
[0011] Furthermore, a sealing gasket is installed on the outer ring of the one-way valve plate, and the length of the piston plate is greater than the diameter of the interface between the outer pipe and the connecting pipe.
[0012] Compared with the prior art, the beneficial effects of this utility model are: This carbon storage injection device, equipped with anti-backflow technology, works as follows: During normal gas delivery, gas enters the gas compressor through the inlet pipe, is compressed, and then passes through the exhaust pipe, connecting pipe, external pipe, and delivery pipe to the carbon storage area. At this time, the gas pressure pushes the one-way valve plate to rotate, which in turn drives the connecting rod to move. The gas smoothly passes through the one-way valve plate into the piston plate area, pushing the piston plate downward and compressing the spring. When gas backflow occurs, the pressure of the backflowing gas decreases, and the spring force causes the piston plate to return to its original position. The connecting rod then drives the one-way valve plate to rotate in the opposite direction and close. The sealing gasket on the outer ring of the one-way valve plate ensures a tight seal when closed, effectively preventing gas backflow into the delivery pipe and ensuring the safety of the entire gas delivery process.
[0013] Furthermore, when the one-way valve plate rotates under gas pressure, it can synchronously drive the piston plate to move; conversely, the movement of the piston plate can also drive the one-way valve plate to rotate in the opposite direction through the connecting rod, ensuring the smoothness of normal gas delivery. It also realizes the synchronous action of the one-way valve plate and the piston plate in the case of backflow, enhancing the anti-backflow function.
[0014] Furthermore, when connecting the pipe and the outer pipe, first pass the delivery pipe through the support ring, then connect the connecting pipe to the exhaust pipe, align the first fixed frame and the second fixed frame, so that the annular sealing gasket on the second fixed frame is embedded in the sealing groove on the first fixed frame, and then screw the screw into the threaded hole to achieve a fixed connection. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.
[0016] Figure 2 This is a partial three-dimensional structural diagram of the present invention.
[0017] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the present invention.
[0018] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the connecting pipe of this utility model.
[0019] Figure 5 This is a partial cross-sectional three-dimensional structural diagram of the conveying pipe of this utility model.
[0020] Figure 6 This utility model Figure 5 A magnified three-dimensional structural diagram of A in the middle.
[0021] In the diagram: 1. Base; 2. Gas compressor; 3. Inlet pipe; 4. Exhaust pipe; 5. Bracket; 6. Delivery pipe; 7. Connecting pipe; 8. Support ring; 9. Spring; 10. Piston plate; 11. Limiting ring; 12. Connecting rod; 13. One-way valve plate; 14. First fixing frame; 15. Second fixing frame; 16. Protective sleeve; 17. Annular sealing gasket; 18. Sealing groove; 19. Screw; 20. Threaded hole; 21. Outer pipe. Detailed Implementation
[0022] 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 protection scope of the present utility model.
[0023] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4This utility model provides the following technical solution: a carbon sealing injection device with anti-backflow protection, comprising a base 1, brackets 5 mounted on both sides of the top of the base 1, a gas compressor 2 mounted on the top of the two brackets 5, an inlet pipe 3 connected to one end of the gas compressor 2, and an exhaust pipe 4 connected to the other end of the gas compressor 2; a support ring 8 mounted on one side of the base 1, a conveying pipe 6 slidably connected inside the support ring 8, and an outer pipe 21 connected to one end of the conveying pipe 6; an anti-backflow mechanism for preventing gas backflow is provided inside the outer pipe 21; the anti-backflow mechanism includes... A connecting pipe 7 is installed at one end of an outer pipe 21. The connecting pipe 7 and the outer pipe 21 are fixedly connected at a right angle. A spring 9 is fixedly connected to the inner bottom wall of the connecting pipe 7. A piston plate 10 is installed at the top of the spring 9. The piston plate 10 is slidably connected to the inside of the connecting pipe 7. A limit ring 11 is installed inside the connecting pipe 7. The connecting pipe 7 moves against the bottom of the limit ring 11. A connecting rod 12 is rotatably connected to the top of the piston plate 10 through a rotating seat. A one-way valve plate 13 is rotatably connected to one end of the connecting rod 12. One side of the one-way valve plate 13 is rotatably connected to the connecting pipe 7.
[0024] like Figure 1 As shown, when using the device, firstly, the intake pipe 3 is connected to the carbon storage device or carbon collection device. Then, by starting the gas compressor 2, gas enters the gas compressor 2 from the intake pipe 3. The gas compressor 2 compresses the gas, increasing its pressure, and then discharges it through the exhaust pipe 4. The exhaust pipe 4 can be connected to the connecting pipe 7, which is connected to the external connecting pipe 21. The external connecting pipe 21 is in turn connected to the conveying pipe 6. Therefore, the gas discharged from the exhaust pipe 4 can be conveyed and injected through the conveying pipe 6. When the gas is normally conveyed from the external connecting pipe 21 to the carbon storage area, the gas pressure pushes the one-way valve plate 13 to rotate inside the connecting pipe 7. Figure 3 and Figure 4 As shown, since the piston plate 10 is rotatably connected to the connecting rod 12 via the rotating seat, and one end of the connecting rod 12 is rotatably connected to the one-way valve plate 13, when the one-way valve plate 13 rotates, it will synchronously drive the connecting rod 12 to move. At this time, the gas enters the area of the piston plate 10 through the one-way valve plate 13. The pressure of the gas at this time will push the piston plate 10 to slide downward in the connecting pipe 7 and compress the spring 9. At this time, the gas can smoothly pass through the outer pipe 21, such as... Figure 3As shown, when gas backflow occurs, the pressure of the backflowing gas decreases, and the elastic force of the spring 9 causes the piston plate 10 to return to its original position. The upward movement of the piston plate 10 drives the one-way valve plate 13 to rotate in the opposite direction and close via the connecting rod 12. The sealing gasket installed on the outer ring of the one-way valve plate 13 ensures the sealing performance when closed, preventing gas backflow into the conveying pipe 6. At the same time, the length of the piston plate 10 is greater than the diameter of the interface between the outer pipe 21 and the connecting pipe 7, and the connecting pipe 7 moves against the bottom of the limiting ring 11, further enhancing the anti-backflow effect. When the connecting pipe 7 moves upward, it is limited by the limiting ring 11, which restricts its movement trajectory, allowing the piston plate 10 to fit tightly against the connection port.
[0025] Example 2: Please refer to Figure 5 and Figure 6 Based on Embodiment 1, a connecting mechanism is also disclosed, the specific structure of which is as follows: The connecting mechanism includes two first fixing frames 14, which are respectively fixedly connected to one end of the exhaust pipe 4 and the delivery pipe 6. One end of the connecting pipe 7 and the outer pipe 21 are fixedly connected to a second fixing frame 15. Screws 19 are installed around the first fixing frame 14, and threaded holes 20 are opened around the second fixing frame 15. A protective sleeve 16 is installed on one side of the second fixing frame 15, and an annular sealing gasket 17 is installed inside the protective sleeve 16. A sealing groove 18 matching the annular sealing gasket 17 is opened inside the first fixing frame 14. A sealing gasket is installed on the outer ring of the one-way valve plate 13, and the length of the piston plate 10 is greater than the diameter of the interface between the outer pipe 21 and the connecting pipe 7.
[0026] like Figure 5 and Figure 6 As shown, when installing the connecting pipe 7 and the outer pipe 21, the delivery pipe 6 is first passed through the support ring 8, and then the connecting pipe 7 is connected to the exhaust pipe 4. The first fixing frame 14 and the second fixing frame 15 are aligned so that the annular sealing gasket 17 on the second fixing frame 15 is embedded in the sealing groove 18 on the first fixing frame 14. Then, the screw 19 is screwed into the threaded hole 20 to achieve a fixed connection between the first fixing frame 14 and the second fixing frame 15, thereby fixing the exhaust pipe 4 and the connecting pipe 7 together. Then, the delivery pipe 6 is aligned with the outer pipe 21 so that the sealing groove 18 on the first fixing frame 14 is aligned with the annular sealing gasket 17 on the second fixing frame 15. Then, the screw 19 is screwed into the threaded hole 20 to achieve a connection between the delivery pipe 6 and the outer pipe 21. This ensures that there will be no leakage between the connecting pipes when injecting gas, thus guaranteeing the sealing of the entire device and the safety of gas delivery.
[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A carbon encapsulation injection device with anti-backflow features, comprising a base (1), characterized in that: The base (1) has brackets (5) installed on both sides of the top, and a gas compressor (2) is installed on the top of the two brackets (5). One end of the gas compressor (2) is connected to an air inlet pipe (3), and the other end of the gas compressor (2) is connected to an exhaust pipe (4). A support ring (8) is installed on one side of the base (1), and a conveying pipe (6) is slidably connected inside the support ring (8). One end of the conveying pipe (6) is connected to an external pipe (21). The external pipe (21) is equipped with an anti-backflow mechanism to prevent gas backflow.
2. A carbon storage injection device with anti-backflow protection according to claim 1, characterized in that: The anti-backflow mechanism includes a connecting pipe (7), which is installed at one end of the outer pipe (21). The connecting pipe (7) and the outer pipe (21) are fixedly connected at a right angle. A spring (9) is fixedly connected to the inner bottom wall of the connecting pipe (7). A piston plate (10) is installed at the top of the spring (9). The piston plate (10) is slidably connected to the inside of the connecting pipe (7). A limit ring (11) is installed inside the connecting pipe (7). The connecting pipe (7) moves against the bottom of the limit ring (11).
3. A carbon storage injection device with anti-backflow protection according to claim 2, characterized in that: The piston plate (10) is rotatably connected to a connecting rod (12) via a rotating seat. One end of the connecting rod (12) is rotatably connected to a one-way valve plate (13), and one side of the one-way valve plate (13) is rotatably connected to a connecting pipe (7).
4. A carbon storage injection device with anti-backflow protection according to claim 1, characterized in that: The exhaust pipe (4) and the delivery pipe (6) are respectively provided with a connecting mechanism for connecting the connecting pipe (7) and the outer pipe (21). The connecting mechanism includes two first fixing frames (14), which are respectively fixedly connected to one end of the exhaust pipe (4) and the delivery pipe (6). One end of the connecting pipe (7) and the outer pipe (21) are both fixedly connected with a second fixing frame (15). Screws (19) are installed around the first fixing frame (14), and threaded holes (20) are opened around the second fixing frame (15).
5. A carbon storage injection device with anti-backflow protection according to claim 4, characterized in that: A protective sleeve (16) is installed on one side of the second fixing frame (15), and an annular sealing gasket (17) is installed inside the protective sleeve (16). A sealing groove (18) matching the annular sealing gasket (17) is opened inside the first fixing frame (14).
6. A carbon storage injection device with anti-backflow protection according to claim 3, characterized in that: The outer ring of the one-way valve plate (13) is fitted with a sealing gasket, and the length of the piston plate (10) is greater than the diameter of the interface between the outer pipe (21) and the connecting pipe (7).