A carbon dioxide capture and sequestration device

Abstract

This utility model applies to the field of carbon dioxide capture and storage, providing a carbon dioxide capture and storage device, including: a capture box; a processing component including: a pre-cooling box; a liquefaction box installed on one side of the pre-cooling box, the liquefaction box being connected to the pre-cooling box via a connector on the side; and multiple exhaust pipes, including a pre-cooling pipe inside the pre-cooling box, one end of which has an exhaust pipe penetrating the pre-cooling box and connected to the liquefaction box, and the other end of which has an outlet penetrating the pre-cooling box and the casing and extending to the outside of the casing. This utility model, through the exhaust pipes, utilizes the treated low-temperature exhaust gas to pre-cool the high-temperature industrial waste gas before treatment, and uses the low-temperature exhaust gas to liquefy and remove moisture from the waste gas. Compared with existing carbon dioxide capture and storage devices, it achieves effective utilization of low-temperature gas, effectively improves the cooling rate, and avoids affecting the collection of liquid carbon dioxide through the drying treatment of the waste gas.

Description

Technical Field

[0001] This utility model belongs to the field of carbon dioxide capture and storage, and particularly relates to a carbon dioxide capture and storage device. Background Technology

[0002] Carbon dioxide capture and storage (CCS) is a key emission reduction technology that captures carbon dioxide emitted from large industrial sources (such as power plants and cement plants), compresses and transports it, and then injects it into deep geological formations for permanent storage. Its core process includes: capturing high concentrations of carbon dioxide using technologies such as chemical absorption and oxygen-enriched combustion; transporting it via pipelines or ships; and ultimately storing it in depleted oil and gas reservoirs, deep saline aquifers, and other geological formations. Geological storage relies on mechanisms such as physical trapping, dissolution, and mineralization to achieve long-term safety.

[0003] Existing carbon dioxide capture and storage devices cool and liquefy industrial waste gas to separate liquid carbon dioxide, and then collect the liquid carbon dioxide to complete the capture of carbon dioxide. However, when the above devices are in use, industrial waste gas usually contains residual heat and a large amount of moisture. Directly cooling the high-temperature waste gas usually requires a lot of time and energy. At the same time, the moisture in the gas forms ice crystals when cooled, which affects the collection of liquid carbon dioxide. Utility Model Content

[0004] The purpose of this utility model embodiment is to provide a carbon dioxide capture and storage device, which aims to solve the problems mentioned in the background art.

[0005] This utility model embodiment is implemented as follows: a carbon dioxide capture and storage device for capturing carbon dioxide in industrial waste gas, comprising:

[0006] The collection box, including the casing;

[0007] Processing components, including:

[0008] The precooling box is used to pretreat the input industrial waste gas. The precooling box is installed inside the casing, with an air inlet fixedly provided on its side. Its lower end is set as a funnel structure and fixedly connected to the water outlet. The air inlet and water outlet penetrate the casing and extend to the outside of the casing.

[0009] The liquefaction tank is installed inside the casing and located on one side of the precooling tank. Its lower end is configured as a funnel structure and passes through the casing through the drain port, extending to the outside to connect with the carbon dioxide storage equipment. The liquefaction tank is connected to the precooling tank through a connector provided on the side.

[0010] Multiple exhaust pipes, including a precooling pipe, are located inside a precooling chamber. One end of the precooling pipe is an exhaust pipe that passes through the precooling chamber and is connected to a liquefaction tank. The other end of the exhaust pipe has an outlet that passes through the precooling chamber and the housing and extends to the outside of the housing.

[0011] Refrigeration components are used to cool industrial waste gas inside the liquefaction tank.

[0012] As a further embodiment of this utility model: the gaps between the corresponding processing components inside the housing are filled with a heat insulation layer, which is used to insulate the processing components.

[0013] As a further aspect of this utility model: the refrigeration component includes:

[0014] The refrigeration unit is fixedly installed on the side wall of the casing;

[0015] The refrigeration pipe is installed inside the liquefaction tank, with both ends passing through the liquefaction tank and the machine casing, and is fixedly connected to the input and output terminals of the refrigeration unit to form a cooling circuit.

[0016] As a further embodiment of this utility model: fin one and fin two are fixedly provided on the outer sides of the precooling pipe and the refrigeration pipe, respectively, and fin one and fin two are composed of metal plates arranged at equal intervals.

[0017] As a further embodiment of this utility model: both the precooling pipe and the refrigeration pipe are arranged in an "S"-shaped bend.

[0018] As a further aspect of this invention, the precooling chamber is also filled with a desiccant to help remove moisture from the industrial waste gas.

[0019] As a further embodiment of this utility model: a filter plate is fixedly installed inside the connector on the side of the precooling box. The filter plate is configured with a loose and porous structure for filtering industrial waste gas.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model provides a carbon dioxide capture and storage device that uses a tail gas pipe to pre-cool the high-temperature industrial waste gas before treatment with the treated low-temperature tail gas. The low-temperature tail gas is also used to liquefy and remove moisture from the waste gas. Compared with existing carbon dioxide capture and storage devices, this device achieves effective utilization of low-temperature gas, effectively improves the cooling rate, and avoids affecting the collection of liquid carbon dioxide by drying the waste gas. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of a carbon dioxide capture and storage device provided in an embodiment of this utility model;

[0023] Figure 2 A partial cross-sectional schematic diagram of a carbon dioxide capture and storage device provided in an embodiment of this utility model;

[0024] Figure 3A partial cross-sectional schematic diagram of the processing component and refrigeration component of a carbon dioxide capture and storage device provided for an embodiment of this utility model;

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 A gas movement route diagram for a carbon dioxide capture and storage device provided in this embodiment of the present invention.

[0027] In the attached diagram: 1. Collection box, 11. Housing, 12. Insulation layer, 2. Processing component, 21. Pre-cooling box, 211. Air inlet, 212. Water outlet, 22. Liquefaction box, 221. Drain outlet, 23. Tail gas pipe, 231. Pre-cooling pipe, 232. Exhaust pipe, 233. Air outlet, 24. Connector, 241. Filter plate, 25. Fin 1, 26. Desiccant, 3. Refrigeration component, 31. Refrigeration unit, 32. Refrigeration pipe, 33. Fin 2. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0030] Please see Figures 1 to 5 This utility model provides a carbon dioxide capture and storage device for capturing carbon dioxide in industrial waste gas, comprising:

[0031] The collection box 1 includes a housing 11;

[0032] Processing component 2 includes:

[0033] The precooling box 21 is used to pretreat the input industrial waste gas. The precooling box 21 is installed inside the housing 11. An air inlet 211 is fixedly provided on its side. Its lower end is set as a funnel structure and is fixedly connected to the water outlet 212. The air inlet 211 and the water outlet 212 penetrate the housing 11 and extend to the outside of the housing 11.

[0034] The liquefaction tank 22 is installed inside the housing 11 and located on one side of the precooling tank 21. Its lower end is configured as a funnel structure and passes through the housing 11 through the drain port 221 and extends to the outside to connect with the carbon dioxide storage device. The liquefaction tank 22 is connected to the precooling tank 21 through the connector 24 provided on the side.

[0035] Multiple exhaust pipes 23, including a precooling pipe 231, which is inside the precooling box 21. One end of the precooling pipe 231 has an exhaust pipe 232 that passes through the precooling box 21 and is connected to the liquefaction tank 22. The other end of the pipe has an exhaust port 233 that passes through the precooling box 21 and the housing 11 and extends to the outside of the housing 11.

[0036] The refrigeration component 3 is used to cool the industrial waste gas inside the liquefaction tank 22.

[0037] In practical application, the industrial waste gas to be treated is input into the pre-cooling box 21 through the air inlet 211. After being cooled by the exhaust pipe 23, the moisture in the industrial waste gas condenses into small water droplets or ice crystals and is removed from the industrial waste gas, thus achieving the drying treatment of the waste gas. The pre-treated industrial waste gas is discharged into the liquefaction tank 22 through the connector 24, and carbon dioxide is liquefied and separated under the cooling treatment of the refrigeration component 3. It is then discharged and collected through the drain port 221. The low-temperature industrial waste gas cools the gas in the pre-cooling box 21 through the exhaust pipe 23 and is discharged through the outlet 233, thereby achieving the capture and collection of carbon dioxide.

[0038] In this embodiment, the exhaust pipe 23 is used to pre-cool the high-temperature industrial waste gas before treatment using the treated low-temperature exhaust gas. The low-temperature exhaust gas is also used to liquefy and remove moisture from the waste gas. Compared with the existing carbon dioxide capture and storage device, this method achieves effective utilization of low-temperature gas, effectively improves the cooling rate, and avoids affecting the collection of liquid carbon dioxide by drying the waste gas.

[0039] Please see Figure 2 In a preferred embodiment of the present invention, the gap between the housing 11 and the processing component 2 is filled with a heat insulation layer 12, which is used to insulate the processing component 2.

[0040] In practical application, this embodiment uses the insulation layer 12 to wrap around the outside of the processing component 2 to keep it warm, preventing heat exchange between the inside and outside of the outer shell. At the same time, the insulation layer 12 can also insulate the pre-cooling box 21 and the liquefaction box 22, thereby effectively preventing direct heat exchange between the pre-cooling box 21 and the liquefaction box 22 and ensuring the controllability of the temperature inside the device.

[0041] Please see Figure 2 and Figure 3 In another preferred embodiment of this utility model, the cooling component 3 includes:

[0042] The refrigeration unit 31 is fixedly installed on the side wall of the casing 11;

[0043] The refrigeration pipe 32 is installed inside the liquefaction tank 22. Both ends of the pipe pass through the liquefaction tank 22 and the casing 11 and are fixedly connected to the input and output ends of the refrigeration unit 31 to form a cooling circuit.

[0044] In practical application, this embodiment uses a cooling circuit consisting of a refrigeration unit 31 and a refrigeration pipe 32 to cool down the liquefaction tank 22, and controls the temperature inside the liquefaction tank 22 by adjusting the refrigeration unit 31.

[0045] Please see Figure 2 and Figure 3 In another preferred embodiment of this utility model, fin 1 25 and fin 2 33 are fixedly provided on the outer sides of the precooling pipe 231 and the cooling pipe 32, respectively, and the fin 1 25 and fin 2 33 are composed of metal plates arranged at equal intervals.

[0046] Furthermore, both the precooling pipe 231 and the cooling pipe 32 are arranged in an "S"-shaped bend.

[0047] In practical application, this embodiment uses an "S"-shaped precooling pipe 231 and a cooling pipe 32, along with fins 25 and 33, to increase the heat exchange area of ​​the precooling pipe 231 and the cooling pipe 32, thereby accelerating the cooling speed of the precooling box 21 and the liquefaction box 22. At the same time, the fins 25 and 33 facilitate the aggregation and adhesion of liquid droplets on the surface, which can then be collected through the outlet 212 and the drain outlet 221.

[0048] In one embodiment, the precooling pipe 231, connector 24, cooling pipe 32, and fin 33 are all made of metal materials with good thermal conductivity, such as copper or aluminum.

[0049] Please see Figures 2 to 4 In another preferred embodiment of this utility model, the precooling box 21 is also filled with desiccant 26 to help remove moisture from industrial waste gas.

[0050] Furthermore, a filter plate 241 is fixedly installed inside the connector 24 on the side of the precooling box 21. The filter plate 241 is configured with a loose and porous structure for filtering industrial waste gas.

[0051] In practical application, this embodiment uses the desiccant 26 and the pre-cooling pipe 231 to condense the exhaust gas, thereby adsorbing the moisture in the exhaust gas. The moisture in the desiccant 26 is discharged at the outlet 212 under the action of gravity, thus ensuring long-term use.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0054] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A carbon dioxide capture and storage device for capturing carbon dioxide in industrial waste gas, characterized in that: include: The collection box (1) includes a housing (11); Processing component (2), including: The precooling box (21) is used to pretreat the input industrial waste gas. The precooling box (21) is installed inside the casing (11). An air inlet (211) is fixedly provided on its side. Its lower end is set as a funnel structure and is fixedly connected to the water outlet (212). The air inlet (211) and the water outlet (212) penetrate the casing (11) and extend to the outside of the casing (11). The liquefaction tank (22) is installed inside the casing (11) and located on one side of the precooling tank (21). Its lower end is configured as a funnel structure and passes through the casing (11) through the drain port (221) and extends to the outside to connect with the carbon dioxide storage device. The liquefaction tank (22) is connected to the precooling tank (21) through the connector (24) provided on the side. Multiple exhaust pipes (23), including a precooling pipe (231), which is located inside the precooling box (21). One end of the precooling pipe (231) has an exhaust pipe (232) that passes through the precooling box (21) and is connected to the liquefaction tank (22). The other end of the precooling pipe (233) has an exhaust port (233) that passes through the precooling box (21) and the housing (11) and extends to the outside of the housing (11). The refrigeration component (3) is used to cool the industrial waste gas in the liquefaction tank (22).

2. The carbon dioxide capture and storage device according to claim 1, characterized in that: The gap between the housing (11) and the processing component (2) is filled with a heat insulation layer (12), which is used to insulate the processing component (2).

3. The carbon dioxide capture and storage device according to claim 1, characterized in that: The cooling component (3) includes: The refrigeration unit (31) is fixedly installed on the side wall of the casing (11); The refrigeration pipe (32) is installed inside the liquefaction tank (22). Both ends of the pipe pass through the liquefaction tank (22) and the casing (11) and are fixedly connected to the input and output ends of the refrigeration unit (31) to form a cooling circuit.

4. A carbon dioxide capture and storage device according to claim 3, characterized in that: Fin 1 (25) and fin 2 (33) are fixedly installed on the outside of the precooling pipe (231) and the refrigeration pipe (32), respectively. Fin 1 (25) and fin 2 (33) are composed of metal plates arranged at equal intervals.

5. A carbon dioxide capture and storage device according to claim 4, characterized in that: Both the precooling pipe (231) and the refrigeration pipe (32) are arranged in an "S"-shaped bend.

6. A carbon dioxide capture and storage device according to claim 1, characterized in that: The precooling box (21) is also filled with a desiccant (26) to help remove moisture from industrial waste gas.

7. A carbon dioxide capture and storage device according to claim 6, characterized in that: The connector (24) is fixedly fitted with a filter plate (241) on the side of the precooling box (21). The filter plate (241) is configured with a loose and porous structure for filtering industrial waste gas.

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