Flue gas inlet pipe based on carbon dioxide capture

By designing an adjustable flue gas inlet pipe structure, the leakage problem caused by the aging of the sealing strip was solved, enabling convenient strip replacement and stable connection.

CN223868791UActive Publication Date: 2026-02-03浙江大学青山湖能源研究基地 +1
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Patent Information

Application Number
CN202520463491.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-02-03
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

The existing flue gas inlet pipe leaks due to aging of the sealing strip after long-term use, and it is not easy to replace.

Method used

A flue gas inlet pipe was designed, comprising an inclined pipe body, a flue gas side outlet pipe, an adjustment component, and an installation component. The pipe body and the collection device are adjustable through a support column and a spring structure, which facilitates the replacement of the sealing strip.

Benefits of technology

When the sealing strip ages, gravity forces the support column and spring structure to support the tube, simplifying the replacement process and improving convenience and stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223868791U_ABST
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Abstract

The utility model discloses a flue gas inlet pipe based on carbon dioxide capture, which comprises an upwards inclined pipe body, a flue gas side opening pipe, an adjusting assembly and a mounting assembly, the flue gas side opening pipe is arranged on one side of the pipe body through the mounting assembly and is communicated with the pipe body, the adjusting assembly is arranged vertically below the inclined part of the pipe body, and the adjusting assembly is arranged vertically below the inclined part of the pipe body. And the adjusting assembly is used for adjusting the distance between the pipe body and the trapping equipment. The pipeline connector is disassembled through the bolt, due to the fact that the gravity and the pressure of the inclined part are transmitted to the supporting column, the movable column moves in the cavity, the movable column extrudes the first spring in the cavity, the elastic force of the first spring reacts on the movable column, and therefore the inclined part and the pipe body are supported; the aged sealing rubber strip can be conveniently replaced by workers at the moment, the overall structure is simple, convenience is improved, and the whole pipe body does not need to be disassembled.
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Description

Technical Field

[0001] This utility model specifically relates to a flue gas inlet pipe based on carbon dioxide capture. Background Technology

[0002] With the acceleration of industrialization, carbon dioxide (CO2), as one of the major greenhouse gases, is being emitted at an ever-increasing rate, significantly impacting the global climate. To address this challenge, carbon dioxide capture, utilization, and storage (CCUS) technology has emerged as a crucial technological means to achieve CO2 emission reduction. Among the various capture technologies, post-combustion capture technology has attracted considerable attention because it does not require large-scale modifications to existing coal-fired power plants. Chemical absorption, in particular, has become a research hotspot due to its mature technology and high application potential.

[0003] Currently, when capturing carbon dioxide, a flue gas inlet pipe is used to introduce the flue gas containing carbon dioxide into the capture equipment. However, the existing flue gas inlet pipe is directly fixed to the flue gas inlet end of the equipment. After a long period of use, the sealing strip at the connection port will age, causing leakage, and it is not convenient to replace. Utility Model Content

[0004] The purpose of this invention is to provide a flue gas inlet pipe based on carbon dioxide capture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a flue gas inlet pipe based on carbon dioxide capture, comprising an upwardly inclined pipe body, a flue gas side outlet pipe, an adjustment component, and an installation component. The flue gas side outlet pipe is disposed on one side of the pipe body through the installation component and is connected to the pipe body. The adjustment component is disposed vertically below the inclined portion of the pipe body and is used to adjust the distance between the pipe body and the capture device.

[0006] Preferably, the adjustment assembly includes a support plate installed on the outside of the inclined portion, a support column is provided on the outside of the support plate, and a movable column is installed at the bottom of the support column.

[0007] Preferably, the adjustment component further includes a support base, on the upper surface of which a cylinder is mounted, the cylinder having a cavity and a through hole on its upper surface.

[0008] Preferably, the movable column is inserted into the cavity through a through hole, and a first spring is provided at the bottom of the cavity, with the end of the first spring away from the cavity abutting against the lower surface of the movable column.

[0009] Preferably, the installation assembly includes a first flange disposed at the pipe body interface and a second flange disposed on the flue gas side outlet pipe, wherein slots are provided on both sides of the surface of the first flange.

[0010] Preferably, the second flange has a groove on the side facing the first flange, and a second spring is provided on both sides of the groove.

[0011] Preferably, each of the two second springs is provided with a movable plate at one end close to each other. The movable plate extends out of the groove through an opening and is connected to a limiting plate, which is inserted into the slot.

[0012] The technical effects and advantages of this utility model are as follows: When the rubber strip at the interface between the pipe body and the capture equipment pipe ages, the interface can be disassembled by using bolts. Due to gravity, the pressure of the inclined part is transmitted to the support column. The movable column moves in the cavity, thereby squeezing the first spring in the cavity. The elastic force of the first spring reacts to the movable column, thus supporting the inclined part and the pipe body. This makes it convenient for the staff to replace the aged rubber strip. The overall structure is simple and improves convenience, as there is no need to disassemble the entire pipe body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the first spring of this utility model;

[0015] Figure 3 This is a schematic diagram of the slot structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the second flange of this utility model;

[0017] Figure 5 This is a cross-sectional view of the cavity of this utility model;

[0018] Figure 6 This utility model Figure 4 A magnified structural diagram of point A in the middle.

[0019] In the diagram: 1. Pipe body; 2. Flue gas side outlet pipe; 3. Inclined part; 4. Support plate; 5. Support column; 6. Movable column; 7. Support base; 8. Cylinder; 9. Cavity; 10. First spring; 11. First flange; 12. Second flange; 13. Slot; 14. Groove; 15. Second spring; 16. Movable plate; 17. Limiting plate. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] For easier replacement of the rubber strip, please refer to... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the device includes an upwardly inclined pipe body 1, a flue gas side outlet pipe 2, an adjustment component, and an installation component. The flue gas side outlet pipe 2 is installed on one side of the pipe body 1 via the installation component and is connected to the pipe body 1. The adjustment component is located vertically below the inclined portion 3 of the pipe body 1 and is used to adjust the distance between the pipe body 1 and the collection device. When the rubber strip at the interface between the pipe body 1 and the collection device pipe ages, the interface is disassembled using bolts. Due to gravity, the pressure of the inclined portion 3 is transmitted to the support column 5, which moves within the cavity 9 via the movable column 6. This causes the movable column 6 to compress the first spring 10 within the cavity 9. The elastic force of the first spring 10 reacts to the movable column 6, thereby supporting the inclined portion 3 and the pipe body 1. This facilitates the replacement of the aged sealing strip by the operator. The overall structure is simple and improves convenience.

[0022] For ease of installation of flue gas side outlet pipe 2, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the adjustment assembly includes a support plate 4 installed on the outside of the inclined section 3. A support column 5 is provided on the outside of the support plate 4, and a movable column 6 is installed at the bottom of the support column 5. When it is necessary to replace the aged rubber strip, by removing the bolts on the side of the tube 1 near the collection device, the inclined section 3 of the tube 1 will drop due to gravity and be supported by the support column 5, thus stabilizing the tube 1. The adjustment assembly also includes a support base 7. A cylinder 8 is installed on the upper surface of the support base 7. The cylinder 8 has a cavity 9 and a through hole on its upper surface, which allows the movable column 6 to rise or fall within the cavity 9. The movable column 6 is inserted into the cavity 9 through the through hole. A first spring 10 is provided at the bottom of the cavity 9. The end of the first spring 10 away from the cavity 9 abuts against the lower surface of the movable column 6. When the tube body 1 presses against the support column 5, the movable column 6 moves vertically downward in the cavity 9, thereby compressing the first spring 10. The first spring 10 deforms and supports the movable column 6, thereby improving the stability of the inclined part 3. The installation assembly includes a first flange 11 provided at the interface of the tube body 1 and a second flange 12 provided on the flue gas side outlet pipe 2. Slots 13 are provided on both sides of the surface of the first flange 11. By inserting the limiting insert plate 17 into the slot 13, the first flange 11 and the second flange 12 can be fixed together, thereby completing the installation of the flue gas side outlet pipe 2. The second flange 12 has a groove 14 facing the first flange 11. Two second springs 15 are provided on both sides of the groove 14. During installation, pressing the two limiting plates 17 closer together moves the two moving plates 16 closer together, stretching the second springs 15. As the second flange 12 and the first flange 11 approach each other, the limiting plates 17 are inserted into the slots 13. Releasing the limiting plates 17 causes the second springs 15 to deform, releasing their elastic force onto the moving plates 16, causing the two moving plates 16 to move away from each other and engage the limiting plates 17 with the side walls of the slots 13, thus installing the second flange 12. Moving plates 16 are provided at the ends of the two second springs 15 closest to each other. The moving plates 16 extend through openings to the outside of the groove 14 and connect to the limiting plates 17, which are then inserted into the slots 13.

[0023] During use, when the rubber strip at the interface between the pipe body 1 and the collection equipment pipe ages, the pipe interface is disassembled using bolts. Due to gravity, the pressure of the inclined part 3 is transmitted to the support column 5, which moves within the cavity 9 via the movable column 6. This causes the movable column 6 to compress the first spring 10 within the cavity 9. The elastic force of the first spring 10 reacts to the movable column 6, thus supporting the inclined part 3 and the pipe body 1. At this time, the worker replaces the aged sealing strip. During installation, pressing the two limit plates 17 together brings the two moving plates 16 closer together and stretches the second spring 15. As the second flange 12 and the first flange 11 approach each other, the limit plates 17 are inserted into the slot 13. Releasing the limit plates 17 causes the second spring 15 to deform, reacting its elastic force to the moving plates 16, causing the two moving plates 16 to move away from each other and causing the limit plates 17 to engage with the two side walls of the slot 13, thus installing the second flange 12.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model.

Claims

1. A flue gas inlet pipe based on carbon dioxide capture, characterized in that, It includes an upwardly inclined pipe (1), a flue gas side outlet pipe (2), an adjustment component and an installation component. The flue gas side outlet pipe (2) is installed on one side of the pipe (1) through the installation component and is connected to the pipe (1). The adjustment component is located vertically below the inclined part (3) of the pipe (1) and is used to adjust the distance between the pipe (1) and the collection device.

2. The flue gas inlet pipe based on carbon dioxide capture according to claim 1, characterized in that: The adjustment assembly includes a support plate (4) installed on the outside of the inclined part (3), a support column (5) is provided on the outside of the support plate (4), and a movable column (6) is installed at the bottom of the support column (5).

3. The flue gas inlet pipe based on carbon dioxide capture according to claim 2, characterized in that: The adjustment assembly also includes a support base (7), on the upper surface of which a cylinder (8) is mounted. The cylinder (8) has a cavity (9) and a through hole on its upper surface.

4. The flue gas inlet pipe based on carbon dioxide capture according to claim 3, characterized in that: The movable column (6) is inserted into the cavity (9) through the through hole. A first spring (10) is provided at the bottom of the cavity (9). The end of the first spring (10) away from the cavity (9) abuts against the lower surface of the movable column (6).

5. The flue gas inlet pipe based on carbon dioxide capture according to claim 1, characterized in that: The installation assembly includes a first flange (11) disposed at the interface of the pipe body (1) and a second flange (12) disposed on the flue gas side outlet pipe (2). Slots (13) are provided on both sides of the surface of the first flange (11).

6. The flue gas inlet pipe based on carbon dioxide capture according to claim 5, characterized in that: The second flange (12) has a groove (14) on the side facing the first flange (11), and a second spring (15) is provided on both sides of the groove (14).

7. The flue gas inlet pipe based on carbon dioxide capture according to claim 6, characterized in that: Two second springs (15) are provided with a movable plate (16) at one end close to each other. The movable plate (16) extends through an opening to the outside of the groove (14) and is connected to a limiting plate (17). The limiting plate (17) is inserted into the slot (13).