A liquefying device for carbon dioxide production

Abstract

This utility model relates to the field of carbon dioxide production technology, and discloses a carbon dioxide liquefaction device, including a base, an installation plate inside the base, a liquefaction chamber fixedly installed on the upper side of the installation plate, a main pipe on the upper side of the installation plate, a connector at the lower end of the main pipe, and four branch pipes communicating with the interior of the connector on the exterior of the connector. Through the cooperation of a sealing plate, a vertical rod, a horizontal plate, a limiting rod, a circular plate, and a first return spring, the sealing plate automatically seals the connecting pipe after it is disengaged from the interior of the connecting pipe, without requiring additional operation by personnel. This effectively prevents air from entering the interior of the branch pipes during the replacement of the liquefaction chamber, avoiding media contamination and pipe corrosion caused by air ingress, ensuring the purity of the carbon dioxide product, and reducing equipment maintenance costs.

Description

Technical Field

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

[0002] Large-scale emissions of greenhouse gases lead to global warming, with carbon dioxide being the largest emitter. At the same time, carbon dioxide is also an important resource with a wide range of uses and increasing demand, such as refrigerants, food additives, fire extinguishing agents, chemical raw materials, oil and gas extraction, and agricultural production. Simply releasing carbon dioxide-containing raw materials into the atmosphere not only wastes carbon resources but also pollutes the atmospheric environment.

[0003] In the prior art, CN222578688U discloses a liquefaction device for carbon dioxide production. Although the prior art achieves the diversion of liquefied carbon dioxide, in actual use, when the liquefaction chamber is disassembled, the flow of liquefied carbon dioxide is blocked only by a valve in the middle of the branch pipe. The upper end of the branch pipe is in an open state, and the lower end of the branch pipe will mix with the subsequent liquefied carbon dioxide due to air entering. As a result, after the valve is opened, the purity of the carbon dioxide product flowing from the inside of the branch pipe decreases, affecting the subsequent use effect, especially in production scenarios where the purity of carbon dioxide is required to be high. In addition, the air contains oxygen, moisture and other components, which will corrode the branch pipe after entering the inside, shorten the service life of the pipeline and increase the equipment maintenance cost. In view of this, we propose a liquefaction device for carbon dioxide production to solve the above problems. Utility Model Content

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

[0005] To achieve the above objectives, this utility model provides the following technical solution: a carbon dioxide production liquefaction device, comprising a base, an installation plate disposed inside the base, a liquefaction chamber fixedly installed on the upper side of the installation plate, a main pipe disposed on the upper side of the installation plate, a connector disposed at the lower end of the main pipe, four branch pipes communicating with the interior disposed outside the connector, each of the four branch pipes being connected to the main pipe via the connector, a guide pipe fixedly connected at the lower end of each branch pipe, a connecting pipe fixedly connected at the lower end of each guide pipe, a sealing plate disposed inside the connecting pipe, a reset assembly disposed on the surface of the sealing plate, a connecting pipe communicating with the interior fixedly connected to the upper surface of the liquefaction chamber, two push rods fixedly connected to the upper end of the connecting pipe, and an auxiliary sealing assembly disposed outside the liquefaction chamber.

[0006] Preferably, the reset assembly includes a vertical rod, which is fixedly connected to the upper surface of the sealing plate. A horizontal plate is fixedly connected to the upper end of the vertical rod, and two limiting rods are fixedly connected to the upper surface of the horizontal plate. The upper ends of the two limiting rods slide through the upper surface of the guide tube.

[0007] Preferably, a circular plate is fixedly connected to the upper end of each of the two limiting rods, and a first return spring is fixedly connected between the circular plate and the guide tube. The first return spring is movably sleeved on the outside of the limiting rod.

[0008] Preferably, a sealing ring is fixedly connected to the inner wall of the lower end of the connecting pipe, and the sealing ring and the sealing plate are pressed together.

[0009] Preferably, the outer diameter of the connecting pipe and the inner diameter of the sealing ring are matched.

[0010] Preferably, the auxiliary sealing assembly includes a fixing ring, which is fixedly connected to the upper surface of the liquefaction chamber, surrounds the outside of the connecting pipe, and has a sliding ring on its upper side.

[0011] Preferably, the sliding ring has an annular groove inside, and the sliding ring is slidably sleeved on the outside of the fixed ring by means of the annular groove.

[0012] Preferably, a second return spring is fixedly connected between the top wall of the annular groove and the upper surface of the fixed ring, and the second return spring is located inside the annular groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This carbon dioxide production liquefaction device, through the cooperation of structures such as a sealing plate, vertical rod, horizontal plate, limiting rod, circular plate, and first return spring, ensures that after the connecting pipe is disengaged from the inside of the connecting pipe, the sealing plate automatically seals the connecting pipe without requiring additional operation by personnel. This effectively prevents air from entering the branch pipe during the replacement of the liquefaction chamber, avoiding media contamination and pipeline corrosion caused by air ingress, ensuring the purity of the carbon dioxide product, and reducing equipment maintenance costs.

[0014] 2. This carbon dioxide production liquefaction device, through the cooperation between the connecting pipe, the push rod and other mechanisms, automatically cancels the seal when the connecting pipe and the connecting pipe are connected. At the same time, with the cooperation between the fixed ring, the sliding ring and the second return spring, the connection is sealed before the seal is canceled, which further improves the practicality of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a carbon dioxide production liquefaction device according to the present invention; Figure 2This is a schematic diagram of the structure of the base of this utility model; Figure 3 This is a cross-sectional structural diagram of the branch pipe of this utility model; Figure 4 This is a cross-sectional view of the liquefaction chamber of this utility model; Figure 5 This is a schematic diagram of the structure of the guide tube of this utility model; Figure 6 for Figure 3 Enlarged view of point A in the middle; Figure 7 for Figure 4 Enlarged view of point B in the middle; Figure 8 for Figure 5 Enlarged view of point C in the middle.

[0016] In the diagram: 1. Base; 2. Mounting plate; 3. Liquefaction chamber; 4. Main pipe; 5. Connector; 6. Branch pipe; 7. Guide pipe; 8. Connecting pipe; 9. Sealing plate; 10. Connecting pipe; 11. Top rod; 12. Vertical rod; 13. Horizontal plate; 14. Limiting rod; 15. Circular plate; 16. First return spring; 17. Sealing ring; 18. Fixing ring; 19. Sliding ring; 20. Annular groove; 21. Second return spring. Detailed Implementation

[0017] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0018] Please see Figures 1-8 This utility model provides a technical solution: a carbon dioxide liquefaction device, including a base 1, an installation plate 2 inside the base 1, a liquefaction chamber 3 fixedly installed on the upper side of the installation plate 2, a main pipe 4 on the upper side of the installation plate 2, a connector 5 at the lower end of the main pipe 4, and four branch pipes 6 connected to the interior of the connector 5 outside the connector 5. The four branch pipes 6 are all connected to the main pipe 4 through the connector 5, thereby realizing the diversion of liquefied carbon dioxide. Since the four branch pipes 6 have the same structure, the following description focuses on one branch pipe 6. A guide pipe 7 is fixedly connected to the lower end of the branch pipe 6, and a connecting pipe 8 is fixedly connected to the lower end of the guide pipe 7. A sealing plate 9 is installed inside the connecting pipe 8, and a reset component is installed on the surface of the sealing plate 9. A connecting pipe 10 connected to the interior is fixedly connected to the upper surface of the liquefaction chamber 3. The outer diameter of the connecting pipe 10 is smaller than the inner diameter of the connecting pipe 8. Two push rods 11 are fixedly connected to the upper end of the connecting pipe 10. An auxiliary sealing component is installed outside the liquefaction chamber 3.

[0019] Among them, the base 1, mounting plate 2 and branch pipe 6 are also equipped with structures such as inserts, spring rods, control panels, electric sliders, control valves and level gauges. For details, please refer to the prior art with announcement number CN222578688U. Since it is a conventional technical means in this field, it will not be described in detail in this article.

[0020] The reset assembly includes a vertical rod 12, which is fixedly connected to the upper surface of the sealing plate 9. A horizontal plate 13 is fixedly connected to the upper end of the vertical rod 12. Two limiting rods 14 are fixedly connected to the upper surface of the horizontal plate 13. The upper ends of the two limiting rods 14 slide through the upper surface of the guide tube 7.

[0021] Both limiting rods 14 are fixedly connected to the upper ends of circular plates 15. A first return spring 16 is fixedly connected between the circular plates 15 and the guide tube 7. The first return spring 16 is movably sleeved on the outside of the limiting rods 14. When the connecting tube 10 approaches the connecting tube 8, the push rod 11 will first enter the interior of the connecting tube 8 and abut against the sealing plate 9. Then, during the movement of the connecting tube 10, the push rod 11 will push the sealing plate 9 upward until the sealing plate 9 enters the interior of the guide tube 7. At this time, the sealing plate 9 will no longer seal the connecting tube 8. At the same time, the movement of the sealing plate 9 will drive the movement of the vertical rod 12. The movement of the vertical rod 12 will drive the movement of the horizontal plate 13. The movement of the horizontal plate 13 will drive the movement of the limiting rods 14. The movement of the limiting rods 14 will drive the movement of the circular plate 15. At this time, the first return spring 16 will be stretched and produce elastic deformation.

[0022] A sealing ring 17 is fixedly connected to the inner wall of the lower end of the connecting pipe 8. The sealing ring 17 and the sealing plate 9 are pressed together. The sealing ring 17 further ensures the sealing effect of the sealing plate 9 on the connecting pipe 8.

[0023] The outer diameter of the connecting pipe 10 is matched with the inner diameter of the sealing ring 17. When the connecting pipe 10 enters the interior of the connecting pipe 8, the sealing ring 17 will also seal the gap.

[0024] The auxiliary sealing assembly includes a retaining ring 18, which is fixedly connected to the upper surface of the liquefaction chamber 3 and surrounds the outside of the connecting pipe 10. A sliding ring 19 is provided on the upper side of the retaining ring 18.

[0025] The sliding ring 19 has an annular groove 20 inside, and the sliding ring 19 is slidably sleeved on the outside of the fixed ring 18 by means of the annular groove 20.

[0026] A second return spring 21 is fixedly connected between the top wall of the annular groove 20 and the upper surface of the fixed ring 18. The second return spring 21 is located inside the annular groove 20. When the connecting pipe 10 is about to be inserted into the inside of the connecting pipe 8, the sliding ring 19 will first be sleeved on the outside of the connecting pipe 8. Subsequently, the upper end of the sliding ring 19 will abut against the lower surface of the guide pipe 7. During the continuous upward movement of the connecting pipe 8, the second return spring 21 will undergo elastic deformation so that the sliding ring 19 can be reset.

[0027] Working principle: When the carbon dioxide production liquefaction device is in use, the liquefied carbon dioxide enters the interior of the connector 5 through the main pipe 4 and is divided into four branch pipes 6. The liquefied carbon dioxide in the subsequent branch pipes 6 will enter the interior of the guide pipe 7 and then enter the interior of the connecting pipe 8 through the guide pipe 7. Finally, it enters the interior of the connecting pipe 10 through the connecting pipe 8, thus realizing the collection of liquefied carbon dioxide in the liquefaction chamber 3.

[0028] When the liquid level sensor detects that the liquefaction chamber 3 is full, it will activate the control valve through the external control component, thereby closing the branch pipe 6. Subsequently, with the help of the external control component, the mounting plate 2 will descend inside the base 1, thereby driving the liquefaction chamber 3 to move. At this time, the connecting pipe 10 will move inside the connecting pipe 8, and under the action of the first return spring 16, the sealing plate 9 will move down synchronously. Subsequently, the sealing plate 9 will abut against the sealing ring 17, and the connecting pipe 10 will disengage from the inside of the connecting pipe 8, ultimately achieving automatic sealing of the connecting pipe 8 by the sealing plate 9.

[0029] When installing the liquefaction chamber 3, after fixing it to the upper side of the mounting plate 2, the liquefaction chamber 3 is raised again by the external control component. Subsequently, when the connecting pipe 10 is about to be inserted into the connecting pipe 8, the sliding ring 19 will first be fitted onto the outside of the connecting pipe 8. Then, the upper end of the sliding ring 19 will abut against the lower surface of the guide pipe 7. During the continuous upward movement of the connecting pipe 8, the second return spring 21 will undergo elastic deformation to facilitate the subsequent reset of the sliding ring 19. Furthermore, when the connecting pipe 10 approaches the connecting pipe 8, the push rod 11 will first enter the interior of the connecting pipe 8 and abut against the sealing plate 9. During the movement of the connecting pipe 10, the sealing plate 9 will be pushed upward by the push rod 11 until the sealing plate 9 enters the interior of the guide pipe 7. At this time, the sealing plate 9 will no longer seal the connecting pipe 8. At the same time, the movement of the sealing plate 9 will drive the movement of the vertical rod 12. The movement of the vertical rod 12 will drive the movement of the horizontal plate 13. The movement of the horizontal plate 13 will drive the movement of the limiting rod 14. The movement of the limiting rod 14 will drive the movement of the circular plate 15. At this time, the first reset spring 16 will be stretched and produce elastic deformation. Then, the liquefied carbon dioxide can continue to be collected by the liquefaction chamber 3.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A liquefaction device for carbon dioxide production, comprising a base (1), characterized in that: The base (1) is provided with an installation plate (2) inside. A liquefaction chamber (3) is fixedly installed on the upper side of the installation plate (2). A main pipe (4) is provided on the upper side of the installation plate (2). A connector (5) is provided at the lower end of the main pipe (4). Four branch pipes (6) connected to the interior are provided outside the connector (5). All four branch pipes (6) are connected to the main pipe (4) through the connector (5). A guide pipe (7) is fixedly connected at the lower end of the branch pipe (6). A connecting pipe (8) is fixedly connected at the lower end of the guide pipe (7). A sealing plate (9) is provided inside the connecting pipe (8). A reset component is provided on the surface of the sealing plate (9). A connecting pipe (10) connected to the interior is fixedly connected to the upper surface of the liquefaction chamber (3). Two push rods (11) are fixedly connected to the upper end of the connecting pipe (10). An auxiliary sealing component is provided outside the liquefaction chamber (3).

2. The carbon dioxide production liquefaction device according to claim 1, characterized in that: The reset assembly includes a vertical rod (12), which is fixedly connected to the upper surface of the sealing plate (9). A horizontal plate (13) is fixedly connected to the upper end of the vertical rod (12). Two limiting rods (14) are fixedly connected to the upper surface of the horizontal plate (13). The upper ends of the two limiting rods (14) slide through the upper surface of the guide tube (7).

3. A liquefaction device for carbon dioxide production according to claim 2, characterized in that: Both of the limiting rods (14) are fixedly connected to a circular plate (15) at their upper ends. A first reset spring (16) is fixedly connected between the circular plate (15) and the guide tube (7). The first reset spring (16) is movably sleeved on the outside of the limiting rod (14).

4. A liquefaction device for carbon dioxide production according to claim 3, characterized in that: A sealing ring (17) is fixedly connected to the inner wall of the lower end of the connecting pipe (8), and the sealing ring (17) and the sealing plate (9) are pressed together.

5. A liquefaction device for carbon dioxide production according to claim 4, characterized in that: The outer diameter of the connecting pipe (10) and the inner diameter of the sealing ring (17) are compatible.

6. A liquefaction device for carbon dioxide production according to claim 5, characterized in that: The auxiliary sealing assembly includes a fixing ring (18), which is fixedly connected to the upper surface of the liquefaction chamber (3). The fixing ring (18) surrounds the outside of the connecting pipe (10), and a sliding ring (19) is provided on the upper side of the fixing ring (18).

7. A liquefaction device for carbon dioxide production according to claim 6, characterized in that: The sliding ring (19) has an annular groove (20) inside, and the sliding ring (19) is slidably sleeved on the outside of the fixed ring (18) by means of the annular groove (20).

8. A liquefaction device for carbon dioxide production according to claim 7, characterized in that: A second return spring (21) is fixedly connected between the top wall of the annular groove (20) and the upper surface of the fixed ring (18), and the second return spring (21) is located inside the annular groove (20).

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