A carbon dioxide purification pretreatment device
By using a spiral circulation pipe and a temperature control system for refrigeration components, along with multi-stage filtration, the problem of low purification efficiency and impurity removal caused by temperature rise in traditional devices has been solved, achieving highly efficient carbon dioxide purification and impurity removal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING HONGLIN GAS CO LTD
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional carbon dioxide purification devices reduce the activity of adsorption materials under high temperature conditions, affecting purification efficiency and failing to meet the requirements of temperature-sensitive purification processes. They also struggle to effectively remove impurities from carbon dioxide.
A temperature control system consisting of a spiral circulation pipe and refrigeration components is used. The circulating pump drives the coolant to cool down, and the system combines adsorption layers and activated carbon filter plates for multi-stage filtration to control the purification temperature and remove impurities.
It enables carbon dioxide purification at a suitable temperature, improves purification efficiency, ensures the smooth progress of subsequent purification processes, and effectively removes impurities such as sulfides, moisture, and odors, providing high-quality purification raw materials.
Smart Images

Figure CN224358205U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gas treatment, and in particular to a carbon dioxide purification pretreatment device. Background Technology
[0002] In many industrial production processes and the operation of large enterprises such as thermal power plants and cement plants, a large amount of carbon dioxide-containing gas is generated. If this gas is directly emitted, it will not only exacerbate the greenhouse effect but also cause resource waste. Therefore, the capture, purification, and subsequent utilization or storage of carbon dioxide has become a research focus. However, the original carbon dioxide-containing gas often contains a variety of pollutants or high-temperature gases, which need to be pretreated before purification.
[0003] Traditional devices have some shortcomings in the carbon dioxide purification pretreatment process. During the purification process, the temperature of carbon dioxide rises due to factors such as reaction or compression. Excessive temperature will reduce the activity of the adsorption material, affect the purification efficiency, increase the difficulty of subsequent purification, affect the purity of the final product, and fail to meet the requirements of some temperature-sensitive purification processes. Therefore, we propose a carbon dioxide purification pretreatment device to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a carbon dioxide purification pretreatment device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A carbon dioxide purification pretreatment device includes a base plate with an opening. A support pad is fixedly connected to the upper surface of the base plate. A processing cylinder is fixedly connected to the upper surface of the support pad. A coolant storage tank and a circulation pump are fixedly connected to the upper surface of the base plate. The input end of the circulation pump is connected to the coolant storage tank via a conduit. The output end of the circulation pump passes through the processing cylinder and is fixedly connected to a circulation pipe. The end of the circulation pipe away from the circulation pump passes through the processing cylinder and is connected to the coolant storage tank. The circulation pipe is spiral-shaped and has multiple secondary pipes connected inside. A filter element is installed on the inner wall of the processing cylinder. A cooling element is provided on the outer surface of the coolant storage tank. Two connecting plates are fixedly connected to the inner wall of the processing cylinder, and the outer surface of each connecting plate is fixedly connected to the outer surface of the circulation pipe.
[0007] In a further embodiment, the filter element includes an adsorption layer fixedly connected to the inner wall of the processing cylinder, and an activated carbon filter plate is connected to the right side of the adsorption layer.
[0008] In a further embodiment, a support base is fixedly connected to one side of the processing cylinder, and a delivery pump is fixedly connected to the upper surface of the support base, with the air delivery end of the delivery pump connected to the processing cylinder.
[0009] In a further embodiment, an exhaust pipe is fixedly connected to one side of the processing cylinder, and a pressure regulating valve is installed on the outer surface of the exhaust pipe.
[0010] In a further embodiment, a flow guide is fixedly connected to the inner wall of the processing cylinder, and the flow guide is located on the left side of the circulation pipe.
[0011] In a further embodiment, a liquid level indicator is provided on the outer surface of the coolant storage tank, and an injection pipe is fixedly connected to the upper surface of the coolant storage tank.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This device drives the coolant to flow in a spiral circulation pipe via a circulating pump. Combined with refrigeration components to cool the coolant, it precisely controls the temperature inside the treatment cylinder. This allows for heat exchange between the carbon dioxide and the circulation pipe, thereby lowering the carbon dioxide temperature and ensuring that the purification process is always conducted at a suitable temperature. This prevents the carbon dioxide from overheating and affecting subsequent treatments. Compared to traditional devices without temperature control, this device improves purification efficiency and ensures the normal operation of subsequent purification processes. Through the synergistic effect of the adsorption layer and activated carbon filter plate in the filter element, it effectively adsorbs various impurities such as sulfides, moisture, and odors from the carbon dioxide, providing high-quality raw materials for subsequent deep purification and significantly reducing the difficulty of subsequent purification. Attached Figure Description
[0014] Figure 1 A frontal three-dimensional structural diagram of a carbon dioxide purification and pretreatment device;
[0015] Figure 2 This is a side view of the carbon dioxide purification and pretreatment device.
[0016] Figure 3 This is a schematic diagram of the internal structure of the treatment cylinder in a carbon dioxide purification pretreatment device.
[0017] Figure 4 For carbon dioxide purification pretreatment unit Figure 3 Enlarged schematic diagram of the structure at point A in the middle.
[0018] In the diagram: 1. Base plate with opening; 2. Support pad; 3. Processing cylinder; 4. Coolant storage tank; 5. Circulation pump body; 6. Support base; 7. Transfer pump; 8. Exhaust pipe; 9. Pressure regulating valve; 10. Circulation pipe; 11. Refrigeration component; 12. Liquid injection pipe; 13. Liquid level indicator; 14. Filter element; 141. Adsorption layer; 142. Activated carbon filter plate; 15. Connecting plate; 16. Flow guide; 17. Secondary pipe. Detailed Implementation
[0019] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0020] 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.
[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 protection scope of the present utility model.
[0022] Please see Figure 1-4In this utility model, a carbon dioxide purification pretreatment device includes a base plate 1 with an opening. A support pad 2 is fixedly connected to the upper surface of the base plate 1. A processing cylinder 3 is fixedly connected to the upper surface of the support pad 2. A coolant storage tank 4 and a circulation pump body 5 are fixedly connected to the upper surface of the base plate 1. The input end of the circulation pump body 5 is connected to the coolant storage tank 4 through a conduit. The output end of the circulation pump body 5 passes through the processing cylinder 3 and is fixedly connected to a circulation pipe 10. The end of the circulation pipe 10 away from the circulation pump body 5 passes through the processing cylinder 3 and is connected to the coolant storage tank 4. The circulation pipe 10 is spiral-shaped, and multiple secondary pipes 17 are connected inside the circulation pipe 10. A filter element 1 is installed on the inner wall of the processing cylinder 3. 4. A cooling element 11 is provided on the outer surface of the coolant storage tank 4. Two connecting plates 15 are fixedly connected to the inner wall of the processing cylinder 3. The outer surface of each connecting plate 15 is fixedly connected to the outer surface of the circulation pipe 10. The circulation pump body 5, the circulation pipe 10 and the cooling element 11 form a temperature control system. The cooling element 11 can be a semiconductor cooling chip, with its hot end located on the outside and its cold end located inside the coolant storage tank 4. It effectively cools the liquid inside the coolant storage tank 4, ensuring that the purification process is carried out at a suitable temperature. The filter element 14 removes impurities. The spiral circulation pipe 10 increases the heat exchange area between the coolant and carbon dioxide, improving the temperature control effect. The connecting plate 15 ensures that the circulation pipe 10 is stably installed.
[0023] The filter element 14 includes an adsorption layer 141 fixedly connected to the inner wall of the processing cylinder 3. An activated carbon filter plate 142 is connected to the right side of the adsorption layer 141. The adsorption layer 141 can specifically adsorb acidic gases, moisture and other impurities in carbon dioxide. The activated carbon filter plate 142 further adsorbs odors and fine particles. The two combined form a multi-stage filtration system, which significantly improves the carbon dioxide purification effect. A support base 6 is fixedly connected to one side of the processing cylinder 3. A delivery pump 7 is fixedly connected to the upper surface of the support base 6. The air delivery end of the delivery pump 7 is connected to the processing cylinder 3. The delivery pump 7 can be a carbon dioxide delivery pump. This type of pump is usually driven by compressed air and is mainly used for pressurizing and delivering liquid carbon dioxide. The support base 6 provides a stable support for the delivery pump 7 to ensure stable operation of the delivery pump 7 and continuously and stably deliver the carbon dioxide gas to be purified into the processing cylinder 3, ensuring the continuous operation of the purification process.
[0024] An exhaust pipe 8 is fixedly connected to one side of the processing cylinder 3. A pressure regulating valve 9 is installed on the outer surface of the exhaust pipe 8. The pressure regulating valve 9 can automatically adjust the exhaust volume of the exhaust pipe 8 according to the internal pressure of the device to prevent the pressure inside the processing cylinder 3 from being too high and to ensure the safe operation of the equipment. At the same time, the gas discharge pressure can be adjusted according to the subsequent process requirements. A flow guide shroud 16 is fixedly connected to the inner wall of the processing cylinder 3. The flow guide shroud 16 is located on the left side of the circulation pipe 10. The flow guide shroud 16 changes the direction of carbon dioxide airflow, making it evenly distributed inside the processing cylinder 3, fully exchanging heat with the circulation pipe 10, and making full contact with the filter element 14 to improve purification efficiency and temperature control effect. A liquid level indicator 13 is set on the outer surface of the coolant storage tank 4. A liquid injection pipe 12 is fixedly connected to the upper surface of the coolant storage tank 4. The liquid level indicator 13 displays the liquid level height in the coolant storage tank 4 in real time, which makes it convenient for operators to detect the coolant shortage in time. The liquid injection pipe 12 facilitates the rapid addition of coolant to ensure the continuous normal operation of the temperature control system.
[0025] The working principle of this utility model is as follows:
[0026] During the pretreatment of carbon dioxide gas, the cooling unit 11 is activated to cool the coolant storage tank 4, and the circulation pump 5 is activated to allow the coolant to flow from the coolant storage tank 4 into the spiral circulation pipe 10. The cooling unit 11 lowers the temperature of the coolant to a suitable temperature. Then, the carbon dioxide gas containing impurities is sent into the processing cylinder 3 through the delivery pump 7. Under the guidance of the guide shroud 16, the gas and the circulation pipe 10 fully exchange heat, thereby effectively reducing the temperature of the carbon dioxide gas. After cooling, the gas passes through the filter element 14, the adsorption layer 141 and the activated carbon filter plate 142 to adsorb and remove impurities. Finally, the purified carbon dioxide is discharged from the exhaust pipe 8. The whole process is efficient and stable.
[0027] 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.
[0028] 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 purification pretreatment device, characterized in that: The system includes a base plate (1) with an opening, a support pad (2) fixedly connected to the upper surface of the base plate (1), a processing cylinder (3) fixedly connected to the upper surface of the support pad (2), a coolant storage tank (4) and a circulation pump (5) fixedly connected to the upper surface of the base plate (1), the input end of the circulation pump (5) being connected to the coolant storage tank (4) via a conduit, and the output end of the circulation pump (5) penetrating the processing cylinder (3) and fixedly connected to a circulation pipe (10), the circulation pipe (10) being away from the circulation pump. One end of the body (5) passes through the processing cylinder (3) and is connected to the coolant storage tank (4). The circulation pipe (10) is spiral in shape. Multiple secondary pipes (17) are connected inside the circulation pipe (10). A filter element (14) is installed on the inner wall of the processing cylinder (3). A cooling element (11) is provided on the outer surface of the coolant storage tank (4). Two connecting plates (15) are fixedly connected to the inner wall of the processing cylinder (3). The outer surface of each connecting plate (15) is fixedly connected to the outer surface of the circulation pipe (10).
2. The carbon dioxide purification pretreatment device according to claim 1, characterized in that: The filter element (14) includes an adsorption layer (141) fixedly connected to the inner wall of the processing cylinder (3), and an activated carbon filter plate (142) is connected to the right side of the adsorption layer (141).
3. The carbon dioxide purification pretreatment device according to claim 1, characterized in that: A support base (6) is fixedly connected to one side of the processing cylinder (3), and a delivery pump (7) is fixedly connected to the upper surface of the support base (6). The air delivery end of the delivery pump (7) is connected to the processing cylinder (3).
4. The carbon dioxide purification pretreatment device according to claim 1, characterized in that: An exhaust pipe (8) is fixedly connected to one side of the processing cylinder (3), and a pressure regulating valve (9) is installed on the outer surface of the exhaust pipe (8).
5. The carbon dioxide purification pretreatment device according to claim 1, characterized in that: The inner wall of the processing cylinder (3) is fixedly connected to a flow guide (16), which is located on the left side of the circulation pipe (10).
6. The carbon dioxide purification pretreatment device according to claim 1, characterized in that: The coolant storage tank (4) has a liquid level mark (13) on its outer surface and an injection pipe (12) is fixedly connected to its upper surface.