A liquid carbon dioxide purification device

Abstract

The utility model discloses a kind of liquid carbon dioxide purification devices, including substrate, purification structure, liquid inlet component, stirring assembly, gas delivery component and high-pressure storage component;The upper surface side of the substrate is equipped with purification tank bracket, and purification tank bracket is equipped with purification structure on, and stirring assembly is installed at the top center position of purification structure, and one side of purification structure is communicated with high-pressure storage component by gas delivery component, and the upper surface of substrate is equipped with compression pump, and the top of high-pressure storage component is fixedly connected with compression pump by compression pipe.The utility model carries out automatic control to the working procedure of purification device by PLC controller, improves operation convenience and working efficiency;And the pressure in high-pressure storage tank is monitored in real time by pressure gauge, ensure that the pressure of liquid carbon dioxide is stable in storage process, prevent the security risk caused by excessively high or excessively low pressure, to guarantee the safe operation of device.

Description

Technical Field

[0001] This utility model relates to the field of carbon dioxide purification technology, specifically a liquid carbon dioxide purification device. Background Technology

[0002] Carbon dioxide, as a crucial industrial gas supporting industrial production and development in numerous fields, has an extremely wide range of applications, spanning many different industries. For example, in the food industry, carbon dioxide is extensively used in the production of carbonated beverages; in welding, it plays a vital role as a protective gas; and in firefighting, its unique physical and chemical properties make it a commonly used fire extinguishing agent. However, in actual production and application, carbon dioxide gas obtained from different sources is not pure and often contains various impurities. Common impurities include nitrogen, oxygen, water vapor, and some organic impurities. The presence of these impurities has many adverse effects on the effectiveness of carbon dioxide in various fields.

[0003] The existing liquid carbon dioxide purification equipment has the following drawbacks: 1. Existing liquid carbon dioxide purification devices do not completely remove impurities. For some impurities with similar physical properties to carbon dioxide, existing purification processes and equipment are unable to completely remove them, affecting the purity of liquid carbon dioxide. Therefore, we propose a liquid carbon dioxide purification device to solve the existing problems. Utility Model Content

[0004] The purpose of this invention is to provide a liquid carbon dioxide purification device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a liquid carbon dioxide purification device, comprising a base plate, a purification structure, a liquid inlet assembly, a stirring assembly, a gas conveying assembly, and a high-pressure storage assembly; a purification tank bracket is installed on one side of the upper surface of the base plate, serving as a basic support and providing a stable platform for the entire device; the purification tank bracket provides stable support for the purification structure, ensuring its stable position during operation and guaranteeing normal purification. A PLC controller is installed on the front surface of the purification tank bracket, automating the entire purification process and improving operational convenience and efficiency. The purification structure is installed on the purification tank bracket, with a stirring assembly installed at the top center of the purification structure. The stirring assembly ensures uniform mixing of liquid carbon dioxide within the purification tank, improving purification efficiency. A liquid inlet assembly is installed on one side of the upper surface of the purification structure, facilitating the introduction of the liquid carbon dioxide to be purified into the purification process. Inside the tank, a drain pipe is installed at the bottom of the purification structure. This drain pipe allows for easy removal of any remaining liquid after purification, facilitating cleaning and maintenance. One side of the purification structure is connected to a high-pressure storage component via a gas delivery assembly. This assembly, a key component connecting the purification structure and the high-pressure storage component, safely and efficiently delivers the purified high-purity carbon dioxide to the high-pressure storage component for storage and subsequent use. A compression pump is installed on the upper surface of the substrate. As the power core of the purification device, the compression pump compresses the purified carbon dioxide to increase its storage density and facilitate subsequent use. The compression pump is fixedly connected to the top of the high-pressure storage component via a compression pipe. This fixed connection allows the compression pump to efficiently compress the purified high-purity carbon dioxide delivered by the gas delivery assembly and then safely inject it into the high-pressure storage component for storage. This ensures the continuity and stability of the purification process and effectively improves the overall efficiency and practicality of the purification device.

[0006] Preferably, the purification structure includes an outer reaction vessel and an inner reaction vessel. The arrangement of these two vessels makes the purification process more efficient and precise. The outer reaction vessel, as the main container for the purification process, has a large internal space to hold sufficient liquid carbon dioxide for purification. The inner reaction vessel is located inside the outer reaction vessel, and its material and design are optimized for purification efficiency. A ring-shaped heating pipe is installed between the outer and inner reaction vessels. The installation of the ring-shaped heating pipe aims to promote the interaction between carbon dioxide molecules through heating, accelerating the purification process. This improves purification efficiency and ensures that the purified carbon dioxide reaches the required high purity standard. A metering instrument is installed on the front surface of the outer reaction vessel. This instrument is used to monitor and record key parameters such as pressure and temperature inside the outer reaction vessel in real time during the purification process, allowing operators to adjust operating conditions promptly and ensuring the stability and controllability of the purification process.

[0007] Preferably, the liquid inlet assembly is equipped with a drug inlet filter canister, which can effectively filter out particulate matter, dust and other impurities in liquid carbon dioxide, ensuring the purity of the purification process. A sealing cover is installed on the top of the drug inlet filter canister, and a liquid inlet pipe is installed on the top of the sealing cover. The installation of the liquid inlet pipe is intended to safely and efficiently introduce liquid carbon dioxide into the purification device. The sealing cover canister ensures the airtightness of the drug inlet filter canister, preventing the entry of external air or impurities during the purification process, and further improving the purification effect.

[0008] Preferably, the inner cylinder of the drug inlet filter canister is fitted with a filter element body via a filter element bracket. The filter element body is responsible for further filtering out tiny particles and impurities from the pre-filtered liquid carbon dioxide, ensuring that the carbon dioxide entering the purification stage has extremely high purity. The filter element bracket is used to stably support the filter element body, ensuring its stability and durability during the filtration process. A filter membrane holder is installed at the lower inner end of the drug inlet filter canister. The filter membrane holder is installed at the lower inner end of the drug inlet filter canister and is used to support the filter membrane. The filter membrane has a fine filtration pore size, which can effectively block impurities from passing through while allowing pure liquid carbon dioxide to pass through smoothly. An air pump is installed at the bottom of the drug inlet filter canister. The air pump is responsible for drawing the deeply filtered liquid carbon dioxide from the drug inlet filter canister and transporting it to the next stage of the purification device, providing a stable and pure raw material for the purification process.

[0009] Preferably, the stirring assembly is equipped with a stirring motor, which serves as the power source for the stirring assembly, providing stable driving force to ensure the continuity and efficiency of the stirring process. The output end of the stirring motor is equipped with stirring rollers, which directly contact the liquid carbon dioxide. Through the shear force and eddy current effect generated by the rotation, the impurities in the liquid carbon dioxide are effectively dispersed and mixed evenly, creating favorable conditions for subsequent filtration and purification steps. This not only improves the purification efficiency but also ensures the stability and reliability of the purification process, providing a strong guarantee for the high-quality purification of liquid carbon dioxide.

[0010] Preferably, the gas delivery assembly is equipped with a gas delivery pipe. One side of the gas delivery pipe is connected to the outer wall of the purification structure via a sealing flange. The sealing flange enhances the sealing of the connection, preventing gas leakage and ensuring the continuity and efficiency of the purification process. The other side of the gas delivery pipe is connected to a high-pressure storage assembly via a sealing flange. The high-pressure storage assembly is used to store the purified liquid carbon dioxide and can withstand a high-pressure environment, ensuring the safety and stability of the liquid carbon dioxide during storage. Through the connection of the sealing flange, the purified liquid carbon dioxide can flow smoothly from the gas delivery pipe into the high-pressure storage assembly, avoiding gas leakage and waste, and also ensuring the complete preservation of the purification results. The gas delivery pipe is equipped with a solenoid valve and a flow meter. The solenoid valve can accurately control the flow of gas in the gas delivery pipe, ensuring that the purification device can quickly and accurately start or stop gas delivery when needed. The flow meter monitors the gas flow in real time, providing users with accurate data support, helping users understand the working status of the purification device, and adjust the operating parameters accordingly to achieve a more efficient purification effect.

[0011] Preferably, the high-pressure storage assembly is equipped with a high-pressure storage tank. The high-pressure storage tank is made of high-strength material, capable of withstanding the enormous pressure of liquid carbon dioxide under high pressure. Simultaneously, its excellent sealing performance effectively prevents gas leakage, ensuring the complete preservation of the purification results. The bottom of the high-pressure storage tank is fixed to the upper surface of the substrate via a base plate. A pressure gauge is installed on one side of the top of the high-pressure storage tank. The pressure gauge is used to monitor the pressure inside the high-pressure storage tank in real time, ensuring the pressure of the liquid carbon dioxide remains stable during storage and preventing safety hazards caused by excessively high or low pressure. The installation of the base plate not only enhances the stability of the high-pressure storage tank but also facilitates its connection and fixation to the substrate, making the entire purification device structure more compact and stable. An exhaust pipe is installed on the lower side wall of the high-pressure storage tank. The exhaust pipe is used to release the gas inside the high-pressure storage tank when necessary, ensuring the safe operation of the device.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses a filter element body on the liquid inlet assembly to further filter out tiny particles and impurities in the pre-filtered liquid carbon dioxide, ensuring that the carbon dioxide entering the purification stage has extremely high purity. At the same time, a filter membrane holder is used to support the filter membrane, which has a fine filtration pore size, which can effectively block impurities from passing through while allowing pure liquid carbon dioxide to pass through smoothly. The pure carbon dioxide is then transported to the next stage of the purification device by a gas pump, providing a stable and pure raw material for the purification process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the purification structure and stirring assembly of this utility model; Figure 3 This is a schematic diagram of the liquid inlet assembly structure of this utility model; Figure 4 This is a schematic diagram of the gas delivery component structure of this utility model.

[0014] In the diagram: 1. Base plate; 2. Purification tank bracket; 3. Purification structure; 31. Outer reaction tank; 32. Inner reaction tank; 33. Annular heating tube; 34. Measuring instrument; 4. Liquid inlet assembly; 41. Drug inlet filter tank; 42. Sealing cover plate; 43. Liquid inlet pipe; 44. Filter element body; 45. Filter element bracket; 46. Filter membrane holder; 47. Gas pump; 5. Stirring assembly; 51. Stirring motor; 52. Stirring roller blades; 6. Drainage pipe; 7. PLC controller; 8. Gas delivery assembly; 81. Sealing flange; 82. Gas delivery pipe; 83. Solenoid valve; 84. Flow meter; 9. Compression pipe; 10. Compression pump; 11. High-pressure storage assembly; 111. High-pressure storage tank; 112. Pressure gauge; 113. Base plate; 114. Exhaust pipe. Detailed Implementation

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0016] like Figure 1-4As shown, this utility model provides an embodiment of a liquid carbon dioxide purification device, including a base plate 1, a purification structure 3, a liquid inlet assembly 4, a stirring assembly 5, a gas conveying assembly 8, and a high-pressure storage assembly 11. A purification tank bracket 2 is installed on one side of the upper surface of the base plate 1, serving as a basic support and providing a stable platform for the entire device. The purification tank bracket 2 provides stable support for the purification structure 3, ensuring its stable position during operation and guaranteeing normal purification. A PLC controller 7 is installed on the front surface of the purification tank bracket 2, automating the entire purification process and improving operational convenience and efficiency. The purification structure 3 is mounted on the purification tank bracket 2, with the stirring assembly 5 installed at the top center of the purification structure 3. The stirring assembly 5 ensures uniform mixing of liquid carbon dioxide within the purification tank, improving purification efficiency. The liquid inlet assembly 4 is installed on one side of the upper surface of the purification structure 3, facilitating the introduction of the liquid carbon dioxide to be purified into the purification tank for purification. The bottom of structure 3 is equipped with a drain pipe 6. The drain pipe 6 allows for easy discharge of the remaining liquid in the purification tank after purification, facilitating cleaning and maintenance of the device. One side of the purification structure 3 is connected to the high-pressure storage component 11 via a gas delivery component 8. The gas delivery component 8, as a key component connecting the purification structure 3 and the high-pressure storage component 11, can safely and efficiently deliver the purified high-purity carbon dioxide to the high-pressure storage component 11 for storage and subsequent use. A compression pump 10 is installed on the upper surface of the substrate 1. The compression pump 10, as the power core of the purification device, compresses the purified carbon dioxide to increase its storage density and facilitate subsequent use. The compression pump 10 is fixedly connected to the top of the high-pressure storage component 11 via a compression pipe 9. This fixed connection allows the compression pump 10 to efficiently compress the purified high-purity carbon dioxide delivered by the gas delivery component 8 and then safely inject it into the high-pressure storage component 11 for storage, ensuring the continuity and stability of the purification process and effectively improving the working efficiency and practicality of the entire purification device. Example

[0017] like Figure 1 and Figure 2As shown, the liquid carbon dioxide purification device proposed in this utility model, compared with Embodiment 1, further includes: an outer reaction tank 31 and an inner reaction tank 32 are provided on the purification structure 3. The arrangement of the outer reaction tank 31 and the inner reaction tank 32 makes the purification process more efficient and precise. The outer reaction tank 31, as the main container for the purification process, has a large internal space and can hold enough liquid carbon dioxide for purification. The inner reaction tank 32 is located inside the outer reaction tank 31, and its material and design are optimized for purification efficiency. An annular heating tube 33 is installed between the outer reaction tank 31 and the inner reaction tank 32. The installation of the annular heating tube 33 is intended to promote the interaction between carbon dioxide molecules through heating, thereby accelerating the purification process. This improves the purification efficiency and ensures that the purified carbon dioxide can reach the required high purity standard. A metering instrument 34 is installed on the front surface of the outer reaction tank 31. The metering instrument 34 is used to monitor and record key parameters such as pressure and temperature inside the outer reaction tank 31 in real time during the purification process, so that the operator can adjust the operating conditions in a timely manner to ensure the stability and controllability of the purification process.

[0018] In this embodiment, as Figure 3 As shown, the liquid inlet assembly 4 is equipped with a drug inlet filter tank 41. The drug inlet filter tank 41 can effectively filter out impurities such as particulate matter and dust in liquid carbon dioxide, ensuring the purity of the purification process. A sealing cover plate 42 is installed on the top of the drug inlet filter tank 41, and a liquid inlet pipe 43 is installed on the top of the sealing cover plate 42. The installation of the liquid inlet pipe 43 is intended to safely and efficiently introduce liquid carbon dioxide into the purification device. The sealing cover plate 42 ensures the airtightness of the drug inlet filter tank 41, preventing the entry of external air or impurities during the purification process, and further improving the purification effect.

[0019] In this embodiment, as Figure 3 As shown, the inner cylinder of the drug inlet filter tank 41 is fitted with a filter element body 44 via a filter element bracket 45. The filter element body 44 is responsible for further filtering out tiny particles and impurities from the pre-filtered liquid carbon dioxide, ensuring that the carbon dioxide entering the purification stage has extremely high purity. The filter element bracket 45 is used to stably support the filter element body 44, ensuring its stability and durability during the filtration process. A filter membrane holder 46 is installed at the lower inner end of the drug inlet filter tank 41. The filter membrane holder 46 is installed at the lower inner end of the drug inlet filter tank 41 and is used to support the filter membrane. The filter membrane has a fine filtration pore size, which can effectively block impurities from passing through, while allowing pure liquid carbon dioxide to pass through smoothly. An air pump 47 is installed at the bottom of the drug inlet filter tank 41. The air pump 47 is responsible for drawing the deeply filtered liquid carbon dioxide from the drug inlet filter tank 41 and transporting it to the next stage of the purification device, providing a stable and pure raw material for the purification process.

[0020] In this embodiment, as Figure 2As shown, the stirring assembly 5 is equipped with a stirring motor 51, which serves as the power source for the stirring assembly 5, providing a stable driving force to ensure the continuity and efficiency of the stirring process. A stirring roller 52 is installed on the output end of the stirring motor 51, which directly contacts the liquid carbon dioxide. Through the shear force and eddy current effect generated by the rotation, the impurities in the liquid carbon dioxide are effectively dispersed and mixed evenly, creating favorable conditions for subsequent filtration and purification steps. This not only improves the purification efficiency but also ensures the stability and reliability of the purification process, providing a strong guarantee for the high-quality purification of liquid carbon dioxide.

[0021] In this embodiment, as Figure 1 and Figure 4 As shown, the gas delivery assembly 8 is equipped with a gas delivery pipe 82. One side of the gas delivery pipe 82 is connected to the outer wall of the purification structure 3 via a sealing flange 81. The sealing flange 81 enhances the sealing of the connection, preventing gas leakage and ensuring the continuity and efficiency of the purification process. The other side of the gas delivery pipe 82 is connected to the high-pressure storage assembly 11 via the sealing flange 81. The high-pressure storage assembly 11 is used to store the purified liquid carbon dioxide and can withstand a high-pressure environment, ensuring the safety and stability of the liquid carbon dioxide during storage. Through the connection of the sealing flange 81, the purified liquid... The carbon dioxide can flow smoothly from the gas pipeline 82 into the high-pressure storage component 11, avoiding gas leakage and waste, and ensuring the complete preservation of the purification results. The gas pipeline 82 is equipped with a solenoid valve 83 and a flow meter 84. The solenoid valve 83 can accurately control the flow of gas in the gas pipeline 82, ensuring that the purification device can quickly and accurately start or stop gas delivery when needed. The flow meter 84 monitors the gas flow in real time, providing users with accurate data support, helping users understand the working status of the purification device, and adjust the operating parameters accordingly to achieve a more efficient purification effect.

[0022] In this embodiment, as Figure 1As shown, the high-pressure storage assembly 11 is equipped with a high-pressure storage tank 111. The high-pressure storage tank 111 is made of high-strength material and can withstand the enormous pressure of liquid carbon dioxide under high pressure. At the same time, its excellent sealing performance effectively prevents gas leakage and ensures the complete preservation of purification results. The bottom of the high-pressure storage tank 111 is fixed to the upper surface of the base plate 1 by a base plate 113. A pressure gauge 112 is installed on one side of the top of the high-pressure storage tank 111. The pressure gauge 112 is used to monitor the pressure inside the high-pressure storage tank 111 in real time to ensure the pressure of liquid carbon dioxide is stable during storage and prevent safety hazards caused by excessively high or low pressure. The installation of the base plate 113 not only enhances the stability of the high-pressure storage tank 111, but also facilitates its connection and fixation to the base plate 1, making the entire purification device structure more compact and stable. An exhaust pipe 114 is installed on the lower side wall of the high-pressure storage tank 111. The exhaust pipe 114 is used to release the gas inside the high-pressure storage tank 111 when necessary to ensure the safe operation of the device.

[0023] 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.

Claims

1. A liquid carbon dioxide purification device, comprising a substrate (1), a purification structure (3), a liquid inlet assembly (4), a stirring assembly (5), a gas conveying assembly (8), and a high-pressure storage assembly (11); characterized in that: A purification tank bracket (2) is installed on one side of the upper surface of the substrate (1). A PLC controller (7) is installed on the front surface of the purification tank bracket (2). A purification structure (3) is installed on the purification tank bracket (2). A stirring assembly (5) is installed at the top center of the purification structure (3). A liquid inlet assembly (4) is installed on one side of the upper surface of the purification structure (3). A drain pipe (6) is installed at the bottom of the purification structure (3). One side of the purification structure (3) is connected to the high-pressure storage assembly (11) through a gas supply assembly (8). A compression pump (10) is installed on the upper surface of the substrate (1). The compression pump (10) is fixedly connected to the top of the high-pressure storage assembly (11) through a compression pipe (9).

2. The liquid carbon dioxide purification device according to claim 1, characterized in that: The purification structure (3) is provided with an outer reaction tank (31) and an inner reaction tank (32). An annular heating tube (33) is installed between the outer reaction tank (31) and the inner reaction tank (32). A metering instrument (34) is installed on the front surface of the outer reaction tank (31).

3. The liquid carbon dioxide purification device according to claim 1, characterized in that: The liquid inlet assembly (4) is provided with a drug inlet filter tank (41), and a sealing cover plate (42) is installed on the top of the drug inlet filter tank (41). A liquid inlet pipe (43) is installed on the top of the sealing cover plate (42).

4. The liquid carbon dioxide purification device according to claim 3, characterized in that: The inner cylinder of the drug inlet filter canister (41) is fitted with a filter element body (44) via a filter element bracket (45), a filter membrane frame (46) is installed at the lower end of the inside of the drug inlet filter canister (41), and an air pump (47) is installed at the bottom of the drug inlet filter canister (41).

5. The liquid carbon dioxide purification device according to claim 1, characterized in that: The stirring assembly (5) is equipped with a stirring motor (51), and a stirring roller (52) is installed on the output end of the stirring motor (51).

6. The liquid carbon dioxide purification device according to claim 1, characterized in that: The gas delivery assembly (8) is provided with a gas delivery pipe (82). One side of the gas delivery pipe (82) is connected to the outer wall of the purification structure (3) through a sealing flange (81), and the other side of the gas delivery pipe (82) is connected to the high pressure storage assembly (11) through a sealing flange (81). A solenoid valve (83) and a flow meter (84) are installed on the gas delivery pipe (82).

7. The liquid carbon dioxide purification device according to claim 1, characterized in that: The high-pressure storage assembly (11) is provided with a high-pressure storage tank (111). The bottom of the high-pressure storage tank (111) is fixed to the upper surface of the base plate (1) by a base plate (113). A pressure gauge (112) is installed on one side of the top of the high-pressure storage tank (111). An exhaust pipe (114) is installed on the lower side of the side wall of the high-pressure storage tank (111).

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