Separating and drying device for liquid argon production

Abstract

The utility model discloses a separating and drying device for liquid argon production, which comprises a casing and a horizontal drying tank fixed on the outer wall of one side of the casing, a baffle plate is fixed at one end in the horizontal drying tank, drying agent particles are filled in the horizontal drying tank, a partition plate is mounted on the outer wall of one side, far away from the casing, of the baffle plate, and the partition plate is fixed on the outer wall of one side of the casing. The partition plate and the baffle are of a T-shaped structure, and an opening part is arranged between the end, away from the baffle, of the partition plate and the inner wall of one side of the horizontal drying tank. According to the horizontal drying tank, the baffle and the partition plate which are of the T-shaped structure, the double-area type mixing assembly and the layer plate type blocking structure are adopted to optimize the flowing path of argon, and the retention time of the argon in the drying tank is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of liquid argon production technology, specifically to a separation and drying device for liquid argon production. Background Technology

[0002] Separation drying tanks are primarily used in liquid argon production to remove moisture and impurities from argon gas, ensuring the purity of the liquid argon and the normal operation of the equipment. Their structure typically includes key components such as the tank body, inlet and outlet pipes, desiccant, gas flow pipes, and a drainage system. The tank body is generally made of steel or stainless steel, capable of withstanding high pressure and low temperature environments, ensuring the durability and stability of the equipment. The desiccant is the core component of the separation drying tank; commonly used desiccants include silica gel, activated aluminum, and molecular sieves, which can effectively adsorb moisture from the argon gas. Gas enters the separation drying tank through pipes, and during contact with the desiccant, the moisture is adsorbed and removed. To ensure the continued effectiveness of the desiccant, separation drying tanks are typically equipped with regeneration devices. These devices restore the desiccant's moisture-absorbing capacity through heating or the use of a vacuum pump. For example, the separation drying device for liquid argon production disclosed in patent announcement number CN216557945U includes a shell, an inner shell fixedly connected to the inner wall of the shell, a motor fixedly connected to the right side wall of the shell, a rotating rod fixedly connected to the motor's output end and rotatably connected to the inner shell, a roller fixedly connected to the outer wall of the rotating rod and in contact with the inner wall of the shell, a sector plate fixedly connected to the outer wall of the roller, a slider on the right side wall of the inner shell, and two rollers rotatably connected to the outer wall of the slider and in contact with the rollers. The rotation of the rollers and the sector plate drives the rollers 2 to rotate, and when the rollers 2 contact the sector plate, the sector plate pushes... The second moving roller moves downward, causing the second rotating rod to rotate, which in turn drives multiple crushing blocks to rotate, thus achieving the effect of crushing ice. However, the above technical solution is basically the same as the existing liquid argon separation and drying technology and operation method. That is, the argon gas to be dried enters the separation and drying tank through the gas inlet and comes into contact with the desiccant. However, the movement path and residence time of the argon gas to be dried in the separation and drying tank are relatively short, that is, the gas flow is usually linear. As the gas flow rate increases, the interaction time between the argon gas and the desiccant will decrease, resulting in insufficient moisture adsorption and affecting the drying effect. In addition, in order to improve the gas processing efficiency, the separation and drying tank will choose a higher gas flow rate to reduce the processing time per cycle, which will also greatly shorten the contact time between the gas and the desiccant, thereby reducing the drying effect. Utility Model Content

[0003] The purpose of this invention is to provide a separation and drying device for liquid argon production. The horizontal drying tank is equipped with T-shaped baffles and partitions to form a U-shaped unidirectional airflow channel for argon gas. At the same time, a layered blocking structure is provided on the upper and lower surfaces of the partitions to impede the airflow, so that the argon gas to be dried can fully contact the desiccant particles in the horizontal drying tank. Furthermore, the dual-zone mixing assembly during the drying process keeps the desiccant particles moving, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a separation and drying device for liquid argon production, comprising a casing and a horizontal drying tank fixed to one side of the casing. A baffle is fixed to one end of the interior of the horizontal drying tank. The interior of the horizontal drying tank is filled with desiccant particles. A partition is installed on the side of the baffle away from the casing. The partition and baffle have a T-shaped structure. An opening is provided between the end of the partition away from the baffle and the inner wall of one side of the horizontal drying tank. A U-shaped one-way air passage is formed inside the horizontal drying tank through the baffle and partition. A right-angle air inlet pipe is installed on one side of the outer wall of the horizontal drying tank, with one end of the right-angle air inlet pipe extending to the outside of the baffle. Layered blocking structures are provided on both the upper and lower surfaces of the partition. A dual-zone mixing assembly for agitating the desiccant particles is provided inside the horizontal drying tank. A direct-drive motor for driving the dual-zone mixing assembly is installed on the side of the horizontal drying tank away from the casing.

[0005] Preferably, the horizontal drying tank has two symmetrical side column support structures on one side of its outer wall, and an exhaust valve is installed on one side of the bottom of the horizontal drying tank.

[0006] Preferably, the side column support structure includes two horizontal columns fixed to one side of the outer wall of the horizontal drying tank and steel plates installed at the ends of the two horizontal columns, and a flange on one side of the outer wall of the horizontal drying tank is fixedly connected to one side of the outer wall of the steel plate.

[0007] Preferably, the baffles and partitions are made of stainless steel components, and the layered barrier structure is composed of several equally spaced layered units with staggered upper and lower openings.

[0008] Preferably, the dual-zone mixing assembly includes a lower drive shaft and an upper drive shaft rotatably mounted on both sides inside the horizontal drying tank, and stirring blades fixed at one end of the surfaces of the upper and lower drive shafts. A gear disk is fixed at the same end of both the lower and upper drive shafts.

[0009] Preferably, the output shaft of the direct drive motor extends into the interior of the horizontal drying tank and is equipped with a drive gear for driving the gear disk to rotate.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This separation and drying device for liquid argon production optimizes the flow path of argon gas and extends the residence time of argon gas in the drying tank by using T-shaped baffles and partitions, a dual-zone mixing assembly, and a layered barrier structure in a horizontal drying tank. The T-shaped baffles and partitions, as well as the layered barrier structure set in the drying tank, can effectively guide the flow direction of argon gas, forcing the gas to flow along a specific path when passing through the desiccant layer. This structural design, by changing the flow pattern of the airflow, enables the gas to have more sufficient contact with the desiccant particles, and forces the airflow to flow along a more complex path. This flow path design greatly increases the flow time of argon gas in the drying tank, extending the contact time between the gas and the desiccant particles and effectively improving the moisture adsorption capacity. The dual-zone mixing assembly continuously moves the desiccant particles, continuously enhancing the moisture absorption effect on the surface of the desiccant. The continuous movement of the desiccant particles helps to improve the mutual contact efficiency between the gas and the desiccant, avoiding the phenomenon of agglomeration or decreased adsorption capacity of the desiccant particles due to prolonged stillness. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0013] Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0014] Figure 4 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0015] Figure 5 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 .

[0016] In the diagram: 1. Casing; 2. Horizontal drying tank; 3. Right-angle air inlet pipe; 4. Side column support structure; 401. Horizontal column; 402. Steel plate; 5. Direct drive motor; 6. Exhaust valve; 7. Baffle; 8. Partition; 801. U-shaped one-way air guide duct; 9. Layered barrier structure; 10. Dual-zone mixing assembly; 1001. Lower drive shaft; 1002. Upper drive shaft; 1003. Agitator blade; 1004. Gear disc. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] Please see Figure 1-5 This utility model provides an embodiment of a separation and drying device for liquid argon production, comprising a housing 1 and a horizontal drying tank 2 fixed to one side of the outer wall of the housing 1. A baffle 7 is fixed to one end of the interior of the horizontal drying tank 2. The interior of the horizontal drying tank 2 is filled with desiccant particles. A partition 8 is installed on the outer wall of the baffle 7 away from the housing 1. The partition 8 and the baffle 7 form a T-shaped structure. An opening is provided between the end of the partition 8 away from the baffle 7 and one side of the inner wall of the horizontal drying tank 2. The interior of the horizontal drying tank 2 is opened through the baffle 7. The baffle 8 forms a U-shaped one-way air guide channel 801. A right-angle air inlet pipe 3 is installed on one side of the outer wall of the horizontal drying tank 2. One end of the right-angle air inlet pipe 3 extends to the outside of the baffle 7. The U-shaped one-way air guide channel 801 guides the airflow smoothly through the desiccant layer, which prolongs the contact time between the airflow and the desiccant particles, ensuring that the gas can efficiently remove moisture, thereby accelerating the drying process. In addition, the U-shaped one-way air guide channel 801 ensures that the airflow can only flow in one direction, avoiding possible gas backflow or reverse gas flow problems.

[0019] The upper and lower surfaces of the partition 8 are provided with a layered blocking structure 9. The interior of the horizontal drying tank 2 is provided with a dual-zone mixing assembly 10 for turning the desiccant particles. A direct drive motor 5 for driving the dual-zone mixing assembly 10 is installed on the outer wall of the horizontal drying tank 2 away from the casing 1.

[0020] Two symmetrical side column support structures 4 are provided on one side of the outer wall of the horizontal drying tank 2. An exhaust valve 6 is installed on one side of the bottom end of the horizontal drying tank 2. The side column support structure 4 includes two horizontal columns 401 fixed on one side of the outer wall of the horizontal drying tank 2 and steel plates 402 installed at the ends of the two horizontal columns 401. The flange on one side of the outer wall of the horizontal drying tank 2 is fixedly connected to one side of the outer wall of the steel plate 402.

[0021] Both baffle 7 and partition 8 are made of stainless steel. The layered barrier structure 9 is composed of several equally spaced layered units with upper and lower openings that are staggered in sequence. When external argon gas enters the housing 1 through the right-angle inlet pipe 3, the argon gas flows along the layered barrier structure 9 and the U-shaped one-way air guide 801. At this time, the argon gas is continuously blocked by the layered units with upper and lower openings, thereby changing the flow path of the airflow and enabling the airflow to contact the desiccant particles evenly, thus effectively preventing the airflow bias and improving the drying effect.

[0022] The dual-zone mixing assembly 10 includes a lower drive shaft 1001, an upper drive shaft 1002, and stirring blades 1003 fixed at one end of the surfaces of the upper drive shaft 1002 and the lower drive shaft 1001, which are rotatably mounted on both sides inside the horizontal drying tank 2. A gear disk 1004 is fixed at the same end of both the lower drive shaft 1001 and the upper drive shaft 1002. The output shaft of the direct drive motor 5 extends into the interior of the horizontal drying tank 2 and is equipped with a drive gear for driving the rotation of the gear disk 1004. When the dual-zone mixing assembly 10 is working, the operator transmits rotational power to the upper drive shaft 1002 and the lower drive shaft 1001 through the direct drive motor 5 and the gear disk 1004. The upper drive shaft 1002 and the lower drive shaft 1001 then agitate the desiccant particles in the horizontal drying tank 2 through the stirring blades 1003 to ensure uniform mixing of the desiccant particles inside the drying tank and to ensure more uniform contact between the airflow and the desiccant particles.

[0023] In this embodiment, before the drying process, the operator ensures all equipment is in normal working order. Argon gas, ready for liquefaction after production, is introduced into the right-angle inlet pipe 3. The argon gas source is then turned on and the pressure adjusted to ensure stable entry of the argon gas into the horizontal drying tank 2 via the right-angle inlet pipe 3. Through the right-angle inlet pipe 3, the argon gas flows towards the U-shaped one-way air guide channel 801 of the horizontal drying tank 2. The argon gas then passes through the T-shaped baffles and partitions and flows along the U-shaped one-way air guide channel 801, entering the desiccant layer in the horizontal drying tank 2. The operator then turns on the direct drive motor 5. The direct drive motor 5 and the dual-zone mixing assembly 10 continuously mix the desiccant particles within the drying tank. To prevent particle deposition or agglomeration, as the argon gas moves along the path of the U-shaped unidirectional air duct 801, the layered blocking structures 9 above and below the baffle 8 impede the argon gas flow. At this time, the argon gas must pass through multiple different areas, which greatly increases the residence time of the argon gas in the drying tank, allowing the gas to pass through more paths in the horizontal drying tank 2 and making the exchange between the gas and the desiccant more complete, thereby improving the drying effect of the gas. After the drying process is completed, the argon gas source is first shut off to stop the gas inflow. At the same time, all relevant valves are closed to ensure that the device is in a shutdown state. The dried argon gas is discharged into the next stage liquefaction equipment through the exhaust valve 6.

Claims

1. A separation and drying apparatus for liquid argon production, characterized in that: The device includes a housing (1) and a horizontal drying tank (2) fixed to one side of the outer wall of the housing (1). A baffle (7) is fixed to one end of the interior of the horizontal drying tank (2). The interior of the horizontal drying tank (2) is filled with desiccant particles. A partition (8) is installed on the outer wall of the baffle (7) away from the housing (1). The partition (8) and the baffle (7) are in a T-shape. An opening is provided between the end of the partition (8) away from the baffle (7) and the inner wall of one side of the horizontal drying tank (2). The interior of the horizontal drying tank (2) is traversed by the baffle (7) and the partition. (8) A U-shaped one-way air passage (801) is formed. A right-angle air inlet pipe (3) is installed on one side of the outer wall of the horizontal drying tank (2). One end of the right-angle air inlet pipe (3) extends to the outside of the baffle (7). The upper and lower surfaces of the baffle (8) are provided with a layered blocking structure (9). The interior of the horizontal drying tank (2) is provided with a dual-zone mixing assembly (10) for turning the desiccant particles. A direct drive motor (5) for driving the dual-zone mixing assembly (10) is installed on the outer wall of the horizontal drying tank (2) away from the housing (1).

2. The separation and drying apparatus for liquid argon production according to claim 1, characterized in that: Two symmetrical side column support structures (4) are provided on one side of the outer wall of the horizontal drying tank (2), and an exhaust valve (6) is installed on one side of the bottom end of the horizontal drying tank (2).

3. The separation and drying apparatus for liquid argon production according to claim 2, characterized in that: The side column support structure (4) includes two horizontal columns (401) fixed on one side of the outer wall of the horizontal drying tank (2) and steel plates (402) installed at the ends of the two horizontal columns (401). The flange on one side of the outer wall of the horizontal drying tank (2) is fixedly connected to one side of the outer wall of the steel plate (402).

4. The separation and drying apparatus for liquid argon production according to claim 1, characterized in that: The baffle (7) and partition (8) are both made of stainless steel components. The layered barrier structure (9) is composed of several equally spaced layered units with their upper and lower openings interlaced.

5. A separation and drying apparatus for liquid argon production according to claim 4, characterized in that: The dual-zone mixing assembly (10) includes a lower drive shaft (1001), an upper drive shaft (1002) rotatably mounted on both sides inside the horizontal drying tank (2), and a stirring blade (1003) fixed at one end of the surface of the upper drive shaft (1002) and the lower drive shaft (1001). A gear disk (1004) is fixed at the same end of the lower drive shaft (1001) and the upper drive shaft (1002).

6. A separation and drying apparatus for liquid argon production according to claim 5, characterized in that: The output shaft of the direct drive motor (5) extends into the interior of the horizontal drying tank (2) and is equipped with a drive gear for driving the rotation of the gear disk (1004).

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