Carbon dioxide separation device
By designing a carbon dioxide separation device including a separation tank, a sealed cover and a refrigerator, the problem of impurity gas affecting purity in high-purity liquid CO2 is solved, and efficient separation of CO2 and impurity gas is achieved, and the purity of CO2 is improved.
Patent Information
- Application Number
- CN202421536471.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-02
AI Technical Summary
During the production process of high-purity liquid CO2, a large amount of impurity gas exists in the raw material gas, resulting in the low purity of the liquefied CO2, which affects its application effect.
A carbon dioxide separation device is designed, including a separation tank, a sealed cover and a refrigerator. By controlling the temperature in the separation tank, CO2 is separated from impurity gas, and the separation tank is driven by a motor to rotate, improving the separation efficiency.
It effectively improves the purity of CO2, reduces the content of impurity gases, and meets the application needs of high-purity carbon dioxide.
Smart Images
Figure CN222865388U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of carbon dioxide preparation, in particular to a carbon dioxide separation device. Background Art
[0002] High-purity carbon dioxide is mainly used in the electronics industry, medical research and clinical diagnosis, carbon dioxide lasers, calibration gases for testing instruments and the preparation of other special mixed gases. It is used as a regulator in polyethylene polymerization reactions. Solid carbon dioxide is used as a refrigerant in many industrial processes. Gaseous carbon dioxide is used for carbonizing soft drinks, pH control in water treatment processes, chemical processing, food preservation, inert protection in chemical and food processing processes, welding gas, plant growth stimulant, hardening molds and cores in casting and for pneumatic devices. It is also used as a diluent for sterilizing gases. Liquid carbon dioxide is used as a refrigerant, low-temperature testing of aircraft, missiles and electronic components, rubber polishing and controlling chemical reactions. It can also be used as a fire extinguishing agent.
[0003] In the production process of high-purity liquid CO2, in addition to CO2, the raw gas also contains a large amount of impurities, such as fusel alcohols, sulfides and other gases (N2, CO, H2, CH4, etc.). The liquefaction temperature of some of these impurity gases is higher than that of CO2, so that the liquefied CO2 contains impurities, affecting the purity of CO2.
[0004] Therefore, a carbon dioxide separation device is provided to separate CO2 from impurity gases and improve the purity of CO2. Utility Model Content
[0005] Therefore, the purpose of the present invention is to provide a carbon dioxide separation device to solve the problems raised in the above background technology.
[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a carbon dioxide separation device, which includes a separation tank, a sealing cover is arranged on the top of the separation tank, a refrigerator is arranged on the top of the sealing cover, a connecting pipe is arranged between the sealing cover and the refrigerator, and the connecting pipe is located at the center of the sealing cover; a reinforcing block is arranged at the bottom of the separation tank, and a motor is arranged at the other end of the reinforcing block; a filling pipe is arranged on the top of the sealing cover, and a liquid extraction pipe is arranged on the symmetrical side of the filling pipe; a boosting pipe is arranged on the top of the sealing cover, and the radius of the center of the boosting pipe is perpendicular to the radius of the center of the filling pipe.
[0007] As a preferred solution of the carbon dioxide separation device described in the utility model, wherein: the connecting pipe passes through the sealing cover and is connected to the separation tank, and the other end of the connecting pipe is flush with the inner side surface of the sealing cover.
[0008] As a preferred solution of the carbon dioxide separation device described in the utility model, the bottom of the filling pipe and the boosting pipe are flush with the inner side of the sealing cover, the part of the boosting pipe located above the sealing cover is in the shape of an inverted frustum, and an exhaust pipe is arranged on the top of the boosting pipe.
[0009] As a preferred solution of the carbon dioxide separation device described in the utility model, the bottom of the liquid extraction pipe is located inside the separation tank, and the side of the liquid extraction pipe is sealed with the sealing cover.
[0010] As a preferred solution of the carbon dioxide separation device described in the utility model, a sealing layer is arranged on the inner side of the sealing cover, the bottom of the sealing layer is flush with the bottom of the sealing cover, the sealing layer and the sealing cover are arranged concentrically, and the bottom ends of the filling pipe, the liquid extraction pipe and the boosting pipe are all located inside the sealing layer.
[0011] As a preferred solution of the carbon dioxide separation device described in the utility model, a sealing platform is provided on the top of the separation tank, the height of the sealing platform is the same as the height of the sealing layer, and the width of the sealing platform is the same as the distance between the outer wall of the sealing layer and the inner wall of the sealing cover.
[0012] Beneficial effects of the utility model:
[0013] 1. The utility model provides a carbon dioxide separation device, which maintains the temperature in the separation tank between the liquefaction temperature of CO2 and the liquefaction temperature of the impurity gas by arranging a separation tank, a sealing cover and a refrigerator, so as to separate CO2 from the impurities.
[0014] 2. The utility model provides a carbon dioxide separation device, which improves the separation speed of gaseous CO2 and liquefied impurity gas by setting a motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:
[0016] Figure 1 This is a schematic diagram of the overall structure of a carbon dioxide separation device of the utility model;
[0017] Figure 2 This is a partial structural diagram of a carbon dioxide separation device of the utility model. Figure 1 ;
[0018] Figure 3 This is a partial structural diagram of a carbon dioxide separation device of the utility model. Figure 2.
[0019] Description of reference numerals:
[0020] 1. Separation tank; 11. Motor; 12. Reinforcement block; 13. Sealing platform; 2. Sealing cover; 21. Filling pipe; 22. Liquid extraction pipe; 23. Exhaust pipe; 24. Boosting pipe; 25. Sealing layer; 3. Refrigerator; 31. Connecting pipe. DETAILED DESCRIPTION
[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.
[0022] Reference Figure 1-3 , is a carbon dioxide separation device provided by the utility model, which includes a separation tank 1, a sealing cover 2 is arranged on the top of the separation tank 1, a refrigerator 3 is arranged on the top of the sealing cover 2, a connecting pipe 31 is arranged between the sealing cover 2 and the refrigerator 3, and the connecting pipe 31 is located at the center of the sealing cover 2; a reinforcing block 12 is arranged at the bottom of the separation tank 1, and a motor 11 is arranged at the other end of the reinforcing block 12; a filling pipe 21 is arranged on the top of the sealing cover 2, and a liquid extraction pipe 22 is arranged on the symmetrical side of the filling pipe 21 of the sealing cover 2; a boosting pipe 24 is arranged on the top of the sealing cover 2, and the radius of the center of the boosting pipe 24 is perpendicular to the radius of the center of the filling pipe 21.
[0023] Specifically, a separation tank 1 is provided with a sealing cover 2 on the top of the separation tank 1, and the separation tank 1 forms a sealed space through the cooperation of the separation tank 1 and the sealing cover 2; a refrigerator 3 is provided on the top of the sealing cover 2, and a connecting pipe 31 is provided between the sealing cover 2 and the refrigerator 3, and the connecting pipe 31 is located at the center of the sealing cover 2, and the temperature in the separation tank 1 is controlled between the liquefaction temperature of CO2 and the liquefaction temperature of the impurity gas through the refrigerator 3 and the connecting pipe 31; a reinforcing block 12 is provided at the bottom of the separation tank 1, and a motor 11 is provided at the other end of the reinforcing block 12, the upper part of the separation tank 1 is cylindrical, and the lower part of the separation tank 1 is truncated cone, through The separation tank 1 is driven to rotate by the motor 11 to accelerate the separation speed of the CO2 gas, and the part connecting the separation tank 1 and the motor 11 is reinforced by the reinforcing block 12; a filling pipe 21 is arranged on the top of the sealing cover 2, and a liquid extraction pipe 22 is arranged on the symmetrical side of the filling pipe 21 of the sealing cover 2, and the CO2 raw liquid is added to the interior of the separation tank 1 through the filling pipe 21. After the CO2 is gasified in the separation tank 1, the liquefied impurity gas is extracted from the liquid extraction pipe 22; a boosting pipe 24 is arranged on the top of the sealing cover 2, and the radius of the center of the boosting pipe 24 is perpendicular to the radius of the center of the filling pipe 21, and the gasified CO2 is discharged through the boosting pipe 24
[0024] The connecting pipe 31 passes through the sealing cover 2 and is connected to the separation tank 1 , and the other end of the connecting pipe 31 is flush with the inner side surface of the sealing cover 2 .
[0025] Specifically, the CO 2 raw material liquid in the separation tank 1 is prevented from contacting with the connecting pipe 31 , and the sealing between the connecting pipe 31 and the sealing cover 2 is ensured.
[0026] The bottoms of the filling pipe 21 and the boost pipe 24 are flush with the inner side of the sealing cover 2 . The portion of the boost pipe 24 located above the sealing cover 2 is in the shape of an inverted truncated cone. An exhaust pipe 23 is provided at the top of the boost pipe 24 .
[0027] Specifically, a seal is formed between the filling pipe 21 and the sealing cover 2, and during the filling process, after the raw material liquid enters the separation tank 1 through the filling pipe 21, the CO2 gas and the raw material liquid can be separated faster under the action of gravity; while a seal is formed between the boosting pipe 24 and the sealing cover 2, the CO2 gas is prevented from carrying out the impure liquefied gas. After the CO2 gas is pressurized by the boosting pipe 24, it is accelerated to be discharged through the exhaust pipe 23.
[0028] The bottom of the liquid extraction pipe 22 is located inside the separation tank 1 , and the side of the liquid extraction pipe 22 is sealed with the sealing cover 2 .
[0029] Specifically, the bottom of the liquid extraction pipe 22 is located in the truncated cone-shaped bottom of the separation tank 1 , which can prevent a large amount of impure liquefied gas from remaining in the separation tank 1 .
[0030] A sealing layer 25 is provided on the inner side of the sealing cover 2. The bottom of the sealing layer 25 is flush with the bottom of the sealing cover 2. The sealing layer 25 is concentrically arranged with the sealing cover 2. The bottom ends of the filling pipe 21, the liquid extraction pipe 22 and the boosting pipe 24 are all located inside the sealing layer 25.
[0031] Specifically, the sealing layer 25 is prevented from affecting the circulation inside the separation tank 1 .
[0032] A sealing platform 13 is provided on the top of the separation tank 1 . The height of the sealing platform 13 is the same as the height of the sealing layer 25 . The width of the sealing platform 13 is the same as the distance between the outer wall of the sealing layer 25 and the inner wall of the sealing cover 2 .
[0033] Specifically, through the cooperation of the sealing platform 13 and the sealing layer 25 , the separation tank 1 and the sealing cover 2 form a seal while rotating, and the rotation of the separation tank 1 will not drive the sealing cover 2 to rotate synchronously.
[0034] During use, the raw liquid of CO2 is added to the separation tank 1 through the filling pipe 21, the motor 11 is started to drive the separation tank 1 to rotate, and the temperature in the separation tank 1 is maintained between the liquefaction temperature of CO2 and the liquefaction temperature of the impurity gas by the refrigerator 3. The gasified CO2 is pressurized by the booster pipe 24 and discharged from the exhaust pipe 23 and collected, and the liquefied impurity gas is extracted outward by the liquid extraction pipe 22, thereby completing the separation of CO2.
[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A carbon dioxide separation device, comprising a separation tank (1), characterized in that: A sealing cover (2) is arranged on the top of the separation tank (1), a refrigerator (3) is arranged on the top of the sealing cover (2), a connecting pipe (31) is arranged between the sealing cover (2) and the refrigerator (3), and the connecting pipe (31) is located at the center of the sealing cover (2); a reinforcing block (12) is arranged on the bottom of the separation tank (1), and a motor (11) is arranged on the other end of the reinforcing block (12); a filling pipe (21) is arranged on the top of the sealing cover (2), and a liquid extraction pipe (22) is arranged on the symmetrical side of the filling pipe (21) of the sealing cover (2); a boosting pipe (24) is arranged on the top of the sealing cover (2), and the radius at which the center of the boosting pipe (24) is located is perpendicular to the radius at which the center of the filling pipe (21) is located.
2. A carbon dioxide separation device according to claim 1, characterized in that: The connecting pipe (31) passes through the sealing cover (2) and is connected to the separation tank (1), and the other end of the connecting pipe (31) is flush with the inner side surface of the sealing cover (2).
3. A carbon dioxide separation device according to claim 2, characterized in that: The bottoms of the filling pipe (21) and the boost pipe (24) are flush with the inner side surface of the sealing cover (2); the portion of the boost pipe (24) located above the sealing cover (2) is in the shape of an inverted frustum; and an exhaust pipe (23) is provided at the top of the boost pipe (24).
4. A carbon dioxide separation device according to claim 3, characterized in that: The bottom of the liquid extraction pipe (22) is located inside the separation tank (1), and the side of the liquid extraction pipe (22) is sealed with the sealing cover (2).
5. A carbon dioxide separation device according to claim 4, characterized in that: A sealing layer (25) is provided on the inner side surface of the sealing cover (2); the bottom of the sealing layer (25) is flush with the bottom of the sealing cover (2); the sealing layer (25) and the sealing cover (2) are arranged concentrically; and the bottom ends of the filling pipe (21), the liquid extraction pipe (22) and the boosting pipe (24) are all located inside the sealing layer (25).
6. A carbon dioxide separation device according to claim 5, characterized in that: A sealing platform (13) is provided on the top of the separation tank (1); the height of the sealing platform (13) is the same as the height of the sealing layer (25); and the width of the sealing platform (13) is the same as the distance between the outer wall of the sealing layer (25) and the inner wall of the sealing cover (2).