Membrane shell for capturing carbon dioxide
By designing a membrane shell device for carbon dioxide capture and filtering gas with diaphragms, the problem of CO2 separation and capture in the exhaust gas of coal-fired power plants is solved, and efficient separation and collection of CO2 is achieved, with significant environmental protection and economic benefits.
Patent Information
- Application Number
- CN202422217775.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-11
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-09-11
AI Technical Summary
The prior art is difficult to efficiently separate and capture carbon dioxide (CO2) from the combustion exhaust gas of coal-fired power plants, especially when CO2 concentration is low and accompanied by large amounts of nitrogen.
A membrane shell device for carbon dioxide capture is designed, including a membrane shell cylinder, a sealed end cap and a membrane assembly gas collection tube, which filters the gas through the diaphragm to achieve separation and capture of CO2.
This device can effectively separate CO2, thereby realizing its collection and utilization, solving the problem of CO2 separation and capture in the exhaust gas of coal-fired power plants, and has significant environmental and economic benefits.
Smart Images
Figure CN222998544U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of capture devices, in particular to a membrane housing for carbon dioxide capture. Background Art
[0002] Global warming is one of the main environmental problems in the world at present. Among various greenhouse gases that cause climate change, carbon dioxide (CO2) has the greatest impact on the warming of the earth. Controlling CO2 emissions has become one of the important technical routes to address climate warming. The largest part of CO2 emissions generated by human activities comes from coal-fired power generation. The combustion exhaust gas of coal-fired power plants has the characteristics of low concentration, stability, concentration, and large quantity of CO2 emissions, which is one of the best fields for large-scale CO2 emission reduction. At the same time, the exhaust gas also contains a large amount of nitrogen (N2) with a concentration of about 70%, which is lower than the concentration of nitrogen in the air and is thus difficult to utilize.
[0003] High-purity CO2 is an important industrial gas. The separated and captured CO2 can not only be injected into oil and gas fields to improve oil and gas recovery rates, but also be widely used in synthesizing organic compounds, manufacturing carbonated beverages, etc., to achieve resource utilization. The application prospect of CO2 separation and capture technology in coal-fired power plants is broad, with significant environmental, economic, and social benefits. Therefore, the technology of separating and capturing CO2 is an important technology related to greenhouse gas emission reduction in coal-fired power plants. Content of the Utility Model
[0004] The utility model provides a membrane housing for carbon dioxide capture.
[0005] To achieve the above object, the utility model adopts the following technical solutions:
[0006] A membrane housing for carbon dioxide capture includes a membrane housing cylinder body. Both ends of the membrane housing cylinder body are fixedly installed with membrane housing sealing end caps. A gas production port, an air inlet, and a throttling gas port are respectively arranged on the membrane housing sealing end caps. Two membrane module end caps are installed in the membrane housing cylinder body. A connector is arranged on each membrane module end cap. A membrane module gas collecting pipe is installed between the two connectors. A membrane sheet is wound around the membrane module gas collecting pipe. Both ends of the membrane module gas collecting pipe are communicated with the gas production port.
[0007] A further preferred solution of the utility model: A fixed clamp is installed on each membrane housing sealing end cap.
[0008] A further preferred solution of the utility model: The ports at the upper and lower ends of the left membrane housing sealing end cap are both air inlets, the ports at the upper and lower ends of the right membrane housing sealing end cap are both throttling gas ports, and the middle ports of the left membrane housing sealing end cap and the right membrane housing sealing end cap are both gas production ports.
[0009] A further preferred solution of the present utility model: the air inlets between multiple membrane shell cylinders are connected to each other, and the throttling air inlets are connected to each other.
[0010] A further preferred solution of the present utility model: the end cover of the membrane module is cylindrical, and a number of through grooves are provided on the end cover of the membrane module. Installation holes are arranged between the through grooves, and a connector is installed on the end cover of the membrane module through the installation holes.
[0011] The present utility model has the following beneficial effects:
[0012] The present utility model can be used alone or in series. After the gas enters through the air inlet, it is filtered through the membrane, and CO2 is separated and enters the gas collecting pipe of the membrane module, and then is discharged and collected from the gas production port, realizing the separation and capture of CO2. Description of the Drawings
[0013] Figure 1 is the front sectional structure schematic diagram of the present utility model;
[0014] Figure 2 is the front view structure schematic diagram when multiple membrane shell cylinders of the present utility model are connected;
[0015] Figure 3 is the three-dimensional structure schematic diagram of the end cover of the membrane module of the present utility model;
[0016] In the figure: 1 membrane shell cylinder, 2 membrane shell sealing end cover, 3 end cover of the membrane module, 4 connector, 5 gas collecting pipe of the membrane module, 6 air inlet, 7 throttling air inlet, 8 gas production port, 9 fixed clamp, 10 through groove, 11 installation hole. Detailed Embodiments
[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.
[0018] According to Figure 1-2 As shown, a membrane shell for carbon dioxide capture includes a membrane shell cylinder 1. Membrane shell sealing end covers 2 are fixedly installed at both ends of the membrane shell cylinder 1. A gas production port 8, an air inlet 6 and a throttling air inlet 7 are respectively arranged on the membrane shell sealing end covers 2. Two end covers 3 of the membrane module are installed in the membrane shell cylinder 1. A connector 4 is arranged on each end cover 3 of the membrane module. A gas collecting pipe 5 of the membrane module is installed between the two connectors 4. A membrane is wound around the gas collecting pipe 5 of the membrane module, and both ends of the gas collecting pipe 5 of the membrane module are communicated with the gas production port 8.
[0019] A fixed clamp 9 is installed on each membrane shell sealing end cover 2.
[0020] The ports at the upper and lower ends of the membrane shell sealing end cover 2 at the left end are both air inlets 6, the ports at the upper and lower ends of the membrane shell sealing end cover 2 at the right end are both throttle air ports 7, and the middle ports of the membrane shell sealing end cover 2 at the left end and the membrane shell sealing end cover 2 at the right end are both gas production ports 8.
[0021] The air inlets 6 are connected to each other between the plurality of membrane shell cylinders 1, and the throttle air ports 7 are connected to each other.
[0022] The membrane module end cover 3 is cylindrical. A plurality of through grooves 10 are formed in the membrane module end cover 3. Mounting holes 11 are arranged between the through grooves 10. The connector 4 is mounted on the membrane module end cover 3 through the mounting holes 11.
[0023] Working principle: The gas is introduced into the air inlet 6. The gas enters the membrane through the through grooves 10 on the membrane module end cover 3. The membrane is cylindrical and is formed by rolling a plurality of non-woven fabric sheets. After the gas is filtered by the membrane, CO2 is separated and enters the membrane module gas collecting pipe 5, and then is discharged and collected from the gas production port 8. The remaining gas is discharged from the throttle air port 7 on the other side.
[0024] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.
Claims
1. A membrane shell for carbon dioxide capture, characterized in that: The invention comprises a membrane shell cylinder (1), membrane shell sealing end covers (2) are fixedly installed at both ends of the membrane shell cylinder (1), and the membrane shell sealing end covers (2) are respectively provided with a gas production port (8), a gas inlet port (6) and a throttling gas port (7), two membrane assembly end covers (3) are installed in the membrane shell cylinder (1), each membrane assembly end cover (3) is provided with a connector (4), a membrane assembly gas collecting pipe (5) is installed between the two connectors (4), a membrane sheet is wound on the membrane assembly gas collecting pipe (5), and both ends of the membrane assembly gas collecting pipe (5) are connected to the gas production port (8).
2. A membrane shell for carbon dioxide capture according to claim 1, characterized in that: A fixing clamp (9) is installed on each membrane housing sealing end cover (2).
3. A membrane shell for carbon dioxide capture according to claim 2, characterized in that: The ports at the upper and lower ends of the membrane shell sealing end cover (2) at the left end are both air inlets (6), the ports at the upper and lower ends of the membrane shell sealing end cover (2) at the right end are both throttling ports (7), and the middle ports of the membrane shell sealing end cover (2) at the left end and the membrane shell sealing end cover (2) at the right end are both air production ports (8).
4. A membrane shell for carbon dioxide capture according to claim 3, characterized in that: The air inlets (6) between the plurality of membrane shell cylinders (1) are connected to each other, and the throttling air ports (7) are connected to each other.
5. A membrane shell for carbon dioxide capture according to claim 1, characterized in that: The membrane assembly end cover (3) is cylindrical, and is provided with a plurality of through grooves (10). Mounting holes (11) are provided between the through grooves (10). The membrane assembly end cover (3) is mounted with a connector (4) through the mounting holes (11).