Xenon dehydration and purification device and dehydration and purification method

Abstract

The invention relates to the field of xenon dehydration and purification, and provides a xenon dehydration and purification device and a dehydration and purification method. The xenon dehydration and purification device comprises a dehydration and purification assembly, a cooling tank, a gas cylinder and a heating assembly, the dehydration and purification assembly comprises a shell, a catalytic reaction unit, a cooling unit and an adsorption unit; the shell comprises a shell body and a handle, and a material changing window is formed in the shell body; the catalytic reaction unit comprises a limiting module, a transmission module and an annular box body; the plurality of annular box bodies comprise material boxes and inserting boxes which are alternately arranged; the material box is provided with a V-shaped notch, and the two sides of the V-shaped notch are provided with a catalysis plate and a gas baffle respectively. In the first state, the multiple V-shaped notches all face the material changing window; in the second state, the catalysis plates and the gas baffles are inserted into the strip-shaped holes of the adjacent insertion boxes in a one-to-one correspondence mode, and the adjacent annular box bodies are communicated; the cooling tank is communicated with the dehydration purification assembly; the heating assembly is used for heating the cooling tank. The problems that the catalyst is inconvenient to replace and waste is easily caused are solved.

Description

Technical Field

[0001] This application relates to the field of xenon dehydration and purification, and more particularly to a xenon dehydration and purification apparatus and method. Background Technology

[0002] Xenon, a precious rare gas, plays a crucial role in many cutting-edge fields. In the photolithography process of semiconductor manufacturing, it is a core element for achieving high-precision chip manufacturing; in the field of optoelectronics, xenon lamps, with their high brightness and long lifespan, are widely used to illuminate car headlights, film sets, and other scenarios; in aerospace, it serves as a propellant for ion thrusters, providing powerful propulsion for spacecraft's interstellar journeys; and in the medical field, xenon is indispensable, requiring its assistance in magnetic resonance imaging, and as an anesthetic, it offers numerous advantages such as rapid induction, quick recovery, and minimal cardiovascular effects, making it an ideal medical gas. Currently, China is in a critical period of high-quality development, and the country's high-end science and technology innovation markets, such as aerospace and electronic chip sectors, have a strong demand for xenon products, especially high-purity and ultra-high-purity xenon. Improving the quality of xenon products and achieving a stable supply is of great significance. Therefore, developing efficient xenon purification and dehydration technologies has become an essential path to alleviate the xenon supply shortage.

[0003] In the traditional xenon production process, xenon gas undergoes dehydration and purification to remove moisture and impurities. However, the effectiveness of this dehydration and purification is limited, and the produced xenon gas is insufficient to meet the requirements of fields such as chip manufacturing. Therefore, secondary dehydration and purification is necessary.

[0004] Traditional dehydration purification methods involve reacting a catalyst with carbon monoxide and other substances in xenon gas to produce easily adsorbed substances such as carbon dioxide and water, which are then adsorbed by an adsorption material. To promote the catalytic reaction, the residence time of the xenon gas is usually increased (e.g., by setting up a spiral gas duct) and the amount of catalyst is increased. However, the impurity content in xenon gas requiring secondary dehydration purification is already low; using too much catalyst would result in unnecessary waste, while using too little would affect the dehydration purification effect. Furthermore, placing the catalyst in the (spiral) gas duct makes catalyst replacement very cumbersome, especially when there is more than one type of catalyst. Summary of the Invention

[0005] To address the problems of inconvenient catalyst replacement and potential waste, this application provides a xenon dehydration and purification device and method.

[0006] In a first aspect, this application provides a xenon dehydration and purification apparatus, comprising: The dehydration and purification component includes a shell and a catalytic reaction unit, a cooling unit, and an adsorption unit connected in sequence. The outer casing includes a housing and a handle, the handle being movably connected to the housing, and the housing having a material changing window; The catalytic reaction unit includes a limiting module, a transmission module, and multiple annular boxes; any adjacent annular boxes are connected through the limiting module, allowing adjacent annular boxes to move closer to or further away from each other. The plurality of annular boxes include alternating material boxes and plug-in boxes. The material box on one edge is connected to the handle, and the material box on the other edge is connected to the cooling unit. The plurality of material boxes are connected through the transmission module, and when the rotating shaft rotates, the plurality of material boxes rotate relative to each other. The material box has a V-shaped notch, and a catalytic plate and a baffle plate are respectively provided on both sides of the V-shaped notch; the plug box has a strip-shaped hole; The catalytic reaction unit has a first state and a second state; In the first state, all of the V-shaped notches face the material changing window; In the second state, the catalytic plate and the baffle plate are inserted into the strip holes of the adjacent plug boxes in a one-to-one correspondence, and the adjacent annular boxes are connected. A cooling tank, connected to the dehydration and purification assembly, is used to temporarily store xenon gas and liquefy it. The gas cylinder is connected to the cooling tank; A heating assembly is used to heat the cooling tank to vaporize the liquid xenon gas.

[0007] By adopting the above technical solution, the dehydration and purification component can dehydrate and purify xenon gas. The catalytic reaction unit enables xenon gas to undergo a catalytic reaction. In the first state, the V-shaped notches of the feed boxes all face the feed replacement window, facilitating the replacement of the catalyst plates. The feed boxes are connected by a transmission module. By rotating the handle, the corresponding feed boxes can be rotated, allowing multiple feed boxes to rotate relative to each other so that the V-shaped notches of each feed box face different directions. That is, along the spacing direction of the feed boxes, the projections of each catalyst plate and each baffle plate will not overlap. By pushing the feed boxes, each feed box can be sequentially attached to and connected with the insertion box. Xenon gas passes through the feed boxes and insertion boxes alternately in sequence, and the movement distance within the feed boxes and insertion boxes is relatively long, which helps to promote the catalytic reaction. Furthermore, two catalyst plates are inserted into each insertion box. When xenon gas flows in the insertion box, it can pass through the two catalyst plates, thereby fully carrying out the catalytic reaction. Inserting the catalyst plates and baffle plates into the insertion boxes also helps to reduce the occupancy of the feed box.

[0008] Optionally, the catalyst plate is a permeable plate with a sandwich layer, the sandwich layer being used to fill the catalyst.

[0009] By adopting the above technical solution, the catalyst plate uses a permeable plate with a sandwich structure, in which a catalyst can be filled. The permeable plate structure facilitates gas passage, allowing xenon gas to fully contact the catalyst, thereby improving the catalytic reaction efficiency and enhancing the xenon dehydration and purification effect.

[0010] Optionally, the annular box has a cavity in the middle; The limiting module includes a connecting rod and a limiting block. The two ends of the connecting rod can be slidably inserted into the cavities of the adjacent annular boxes, and the limiting blocks are connected to both ends of the connecting rod.

[0011] By adopting the above technical solution, a cavity is provided in the middle of the annular box. The two ends of the connecting rod in the limiting module can slide into the cavity of the adjacent annular box and connect to the limiting block. This allows the adjacent annular boxes to move closer or further apart, which facilitates the insertion or separation of the catalytic plate and the insertion box, and ensures the relative positional stability of the adjacent annular boxes, which is beneficial to the overall operation and running of the device.

[0012] Optionally, the outer circumferential wall of the material box is provided with an arc-shaped groove, and the length of the arc-shaped groove on each material box is not exactly the same; The transmission module includes a telescopic tube and a slider. The sliders are slidably disposed in the arc-shaped slots in a one-to-one correspondence, and multiple sliders are connected through the telescopic tube.

[0013] By adopting the above technical solution, when the shaft rotates, since the lengths of the arc-shaped grooves on each material box are not exactly the same, the slider slides in the arc-shaped grooves and multiple sliders are connected by telescopic tubes. When one of the material boxes rotates, multiple material boxes can rotate relative to each other, which helps to switch the catalytic reaction unit between the first and second states, facilitates the replacement of the catalyst and connects adjacent annular boxes to carry out catalytic reactions, thereby completing the dehydration and purification of xenon.

[0014] Optionally, the heating component includes a spray unit for spraying water onto the cooling tank.

[0015] By adopting the above technical solution, in the xenon dehydration and purification device, the spray unit of the heating component sprays water onto the cooling tank, which can raise the temperature of the cooling tank, causing the liquid xenon in the cooling tank to vaporize and pressurize. As the pressure increases, the xenon can gradually enter the gas cylinder to complete the bottling, without the need for a compressor to pressurize, saving energy and avoiding excessive filling pressure.

[0016] Optionally, the heating assembly further includes a purging unit for purging and heating the inlet of the cooling tank.

[0017] By adopting the above technical solution, the purging unit purges and heats the opening of the cooling tank, preventing xenon gas from crystallizing at the narrow opening and thus blocking it.

[0018] Optionally, a heating element is provided inside the annular box.

[0019] By adopting the above technical solution and setting up heating elements to raise the temperature, a suitable environment can be provided for some catalytic reactions that need to be carried out in a high-temperature environment.

[0020] Optionally, the cooling unit includes a heat exchanger having at least one heat exchange channel, and a purge pipe is connected to the heat exchange channel, with the other end of the purge pipe pointing towards the opening of the cooling tank.

[0021] By adopting the above technical solution, the heat exchange channel of the heat exchanger can cool the xenon gas, avoiding the high temperature from affecting the subsequent adsorption process; the purge pipe connected to the heat exchange channel can purge the opening of the cooling tank, thereby using the recovered heat to heat the opening of the cooling tank, preventing xenon gas from crystallizing and blocking the opening.

[0022] Optionally, the adsorption unit includes a molecular sieve.

[0023] By adopting the above technical solution, the dehydration and purification component dehydrates and purifies xenon gas. The adsorption unit uses a molecular sieve, which can effectively adsorb impurities and moisture in xenon gas, thereby achieving the dehydration and purification of xenon gas.

[0024] On the other hand, this application also provides a method for dehydrating and purifying xenon gas, comprising the following steps: Vacuum the gas cylinder; The xenon gas is dehydrated and purified using a dehydration and purification unit, and then introduced into a cooling tank. The cooling tank is cooled using liquid nitrogen, which liquefies and depressurizes the xenon gas. The gas cylinder is connected to a cooling tank, and the cooling tank is heated by a heating component to vaporize and pressurize the xenon gas. As the pressure increases, the xenon gas gradually enters the gas cylinder.

[0025] By adopting the above technical solutions, vacuuming can remove impurities in the gas cylinder to avoid contaminating the xenon gas. The dehydration and purification component dehydrates and purifies the xenon gas to improve its purity. Liquid nitrogen can liquefy the xenon gas in the cooling tank and reduce its pressure. The heating component vaporizes and pressurizes the liquid xenon gas. The xenon gas is then transported to the gas cylinder using the pressure difference, thus achieving efficient dehydration, purification, and bottling of the xenon gas.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The catalytic reaction unit can switch between a first state and a second state. In the first state, the V-shaped notches of the feed boxes all face the feed replacement window, facilitating the replacement of the catalyst plates. In the second state, the V-shaped notches of each feed box face different directions, and each feed box and the insertion box are sequentially attached and connected. Xenon gas passes through the feed boxes and insertion boxes alternately, and the movement distance within the feed boxes and insertion boxes is relatively long, which helps to promote the catalytic reaction. Furthermore, two catalyst plates are inserted into each insertion box, and the xenon gas can pass through the two catalyst plates when flowing in the insertion box, thereby fully carrying out the catalytic reaction. Inserting the catalyst plates and the baffle plate into the insertion box also helps to reduce the occupancy of the container. 2. First, liquefy and temporarily store the xenon gas, then heat the cooling tank to vaporize the xenon gas, and use the property of increased vaporization pressure to automatically allow the xenon gas to enter the gas cylinder. 3. Using the waste heat recovered from the heat exchanger to purge the opening of the cooling tank can not only make reasonable use of the recovered waste heat, but also prevent xenon gas from approaching and blocking the opening. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the xenon dehydration and purification device provided in this application; Figure 2 This is a three-dimensional structural schematic diagram of the dehydration and purification component of the xenon dehydration and purification device provided in this application; Figure 3 This is a partial structural diagram of the catalytic reaction unit in the dehydration and purification component provided in this application when it is in the first state; Figure 4 This is a partial structural diagram of the catalytic reaction unit in the dehydration and purification component provided in this application when it is in the second state; Figure 5 This is one of the exploded diagrams of the catalytic reaction unit provided in this application when it is in the second state; Figure 6 This is the second exploded view of the catalytic reaction unit provided in this application when it is in the second state; Figure 7 This is a structural schematic diagram of the limiting module provided in this application.

[0028] Explanation of reference numerals in the attached figures: 1. Dehydration and purification component; 11. Outer shell; 111. Shell; 1111. Inlet; 1112. Outlet; 112. Handle; 113. Material changing window; 12. Catalytic reaction unit; 121. Limiting module; 1211. Connecting rod; 1212. Limiting block; 122. Transmission module; 1221. Telescopic tube; 123. Annular box; 1231. First material box; 1232. First insertion box; 12321. Strip hole; 1233. Second material box; 12331. Arc-shaped groove; 1234. Second insertion box; 1235. Third material box; 124. Catalytic plate; 125. Baffle plate; 13. Cooling unit; 14. Adsorption unit; 2. Cooling tank; 3. Vacuum pump; 4. Heating unit; 5. Backup purifier. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1 to 7 This application will be described in further detail.

[0030] Example 1 like Figure 1 As shown in the figure, this application discloses a xenon dehydration and purification device, including a dehydration and purification component 1, a cooling tank 2, a liquid nitrogen tank, a vacuum pump 3, a heating component 4, and a gas cylinder.

[0031] like Figures 1 to 2 As shown, the dehydration and purification assembly 1 includes a housing 11 and a catalytic reaction unit 12, a cooling unit 13, and an adsorption unit 14 connected in sequence. The catalytic reaction unit 12, the cooling unit 13, and the adsorption unit 14 are all located inside the housing 11.

[0032] The outer casing 11 includes a housing 111 and a handle 112, with the handle 112 movably connected to the housing 111. The housing 111 has a material exchange window 113. The housing 111 has an inlet 1111 and an outlet 1112. Xenon gas is guided through a pipe to the inlet 1111 of the housing 111, and then flows sequentially through the catalytic reaction unit 12, the cooling unit 13, and the adsorption unit 14 to complete the dehydration and purification process. The outlet 1112 of the housing 111 is connected to the cooling tank 2 through a pipe, allowing the dehydrated and purified xenon gas to enter the cooling tank 2.

[0033] like Figures 2 to 4 As shown, the catalytic reaction unit 12 includes a limiting module 121, a transmission module 122, and multiple annular boxes 123. Any adjacent annular boxes 123 are connected through the limiting module 121, so that adjacent annular boxes 123 can move closer to or further away from each other.

[0034] like Figure 3 and Figure 7As shown, specifically, the annular box 123 has a cavity in the middle. The limiting module 121 includes a connecting rod 1211 and a limiting block 1212. The two ends of the connecting rod 1211 are slidably inserted into the cavities of adjacent annular boxes 123, and the limiting blocks 1212 are connected to both ends of the connecting rod 1211. The limiting blocks 1212 are used to prevent the connecting rod 1211 from disengaging from the annular box 123.

[0035] Multiple annular boxes 123 include alternating material boxes and insertion boxes. The material box on one edge is connected to the handle 112, and the material box on the other edge is connected to the cooling unit 13. The multiple material boxes are connected by a transmission module 122, and the multiple material boxes rotate relative to each other when the shaft rotates.

[0036] The outer circumferential wall of each material box has an arc-shaped groove 12331, and the lengths of the arc-shaped grooves 12331 on each material box are not exactly the same. The transmission module 122 includes a telescopic tube 1221 and sliders. The sliders are slidably disposed in the arc-shaped grooves 12331 one by one, and multiple sliders are connected by the telescopic tube 1221. When one of the material boxes rotates, the slider moves relative to the corresponding arc-shaped groove 12331. When the slider abuts against the inner sidewall of the corresponding arc-shaped groove 12331, the telescopic tube 1221 can rotate with the corresponding material box, thereby driving all the sliders to move. The sliders can then drive other material boxes to rotate. Since the lengths of the arc-shaped grooves 12331 on each material box are not exactly the same, relative rotation of each material box can be achieved. Along the spacing direction of the material boxes, the projections of each catalyst plate 124 and each baffle plate 125 will not overlap. The telescopic tube 1221 can be a multi-section telescopic tube 1221. When the material boxes move closer or further apart, the telescopic tube 1221 extends or retracts.

[0037] like Figures 3 to 6 As shown, in this embodiment, the multiple material boxes include a first material box 1231, a first insertion box 1232, a second material box 1233, a second insertion box 1234, and a third material box 1235 arranged sequentially. The first material box 1231 is connected to the handle 112, and the third material box 1235 is connected to the housing 111. When the handle 112 is turned, the first material box 1231 rotates first, and after rotating a certain angle, the second material box 1233 follows the first material box 1231 in rotating. In this embodiment, the third material box 1235 does not need to rotate, so the transmission module 122 may not be connected to the third material box 1235, or when other material boxes rotate, the slider in the arc-shaped groove 12331 of the third material box 1235 does not move to the edge of the arc-shaped groove 12331 and will not come into contact with the third material box 1235.

[0038] The cartridge has a V-shaped notch, with a catalytic plate 124 and a baffle plate 125 on either side of the notch. The catalytic plate 124 is a permeable plate with a sandwich structure, the space between which is filled with catalyst. Xenon gas can pass through the catalytic plate 124 and react with the catalyst. Since some catalytic reactions require a high-temperature environment, a heating element, such as a heating wire, can be installed inside the annular housing 123. The baffle plate 125 can be used to block the airflow, thereby guiding the flow of xenon gas.

[0039] Both the catalytic plate 124 and the baffle plate 125 extend toward the connector box, which has a strip hole 12321.

[0040] The catalytic reaction unit 12 has a first state and a second state.

[0041] like Figure 2 and Figure 3 As shown, in the first state, multiple V-shaped notches face the refueling window 113, facilitating the replacement of the catalyst plate 124 and the catalyst inside it.

[0042] After the catalyst plate 124 is installed, rotate the handle 112 so that each material box is rotated so that its corresponding V-shaped notch faces different directions. Then push the handle 112 so that the material box fits into its adjacent plug box.

[0043] like Figures 4 to 6 As shown, in the second state, the extended portions of the catalytic plate 124 and the baffle plate 125 are inserted into the slots 12321 of the adjacent plug boxes one-to-one. For example, the portions of the catalytic plate 124 and the baffle plate 125 on the first plug box 1231 extending toward the first plug box 1232 can pass through the slots 12321 on the first plug box 1232 and be inserted into the first plug box 1232; the portions of the catalytic plate 124 and the baffle plate 125 on the third plug box 1235 extending toward the second plug box 1234 can pass through the slots 12321 on the second plug box 1234 and be inserted into the second plug box 1234; the catalytic plate 124 and the baffle plate 125 on the second plug box 1233 extend toward both the first plug box 1232 and the second plug box 1234, and therefore can be inserted into the first plug box 1232 and the second plug box 1234 respectively.

[0044] Gas ports can be provided on the material box and the plug box. When the material box is in contact with its adjacent plug box, the material box and the plug box can be connected through the gas ports, which facilitates the alternating flow of xenon gas through the material box and the plug box. Specifically, xenon gas enters through the inlet 1111 on the housing 111 and reaches the V-shaped notch of the first material box 1231. After passing through the catalyst plate 124 on the first material box 1231, it enters the first material box 1231. When it moves in the first material box 1231 until it reaches the corresponding baffle plate 125, the xenon gas can just pass through the gas port connecting the first material box 1231 and the first plug box 1232 into the first plug box 1232. After moving in the first plug box 1232 until it encounters the baffle plate 125, the xenon gas enters the second material box 1233, and so on. Finally, the xenon gas is discharged from the third material box 1235 and guided to the cooling unit 13 by the pipeline.

[0045] By inserting the catalytic plate 124 and the baffle plate 125 into the insertion box, xenon gas can undergo a catalytic reaction not only in the feed box but also in the insertion box. Furthermore, within the insertion box, the xenon gas passes through the catalytic plate 124 twice, effectively promoting the catalytic reaction. Each time, the xenon gas contacts a different part of the catalytic plate 124, ensuring that the catalyst at each location functions fully. The insertion design helps reduce volume, and the xenon gas can remain within each annular box 123 for a longer period, contributing to the complete catalytic reaction.

[0046] like Figures 3 to 4 As shown, the cooling unit 13 includes a heat exchanger, and the adsorption unit 14 can be a molecular sieve. The molecular sieve can adsorb moisture and other impurities in xenon gas, thereby improving the purity of xenon gas. Since molecular sieves are not suitable for operation in excessively high temperature environments, and xenon gas that has just undergone a catalytic reaction is usually at a high temperature, the xenon gas needs to be cooled and its heat recovered by a heat exchanger before adsorption. The heat exchanger has heat exchange channels, and water can be introduced into the heat exchange channels to exchange heat with the xenon gas.

[0047] like Figure 1 As shown, after dehydration and purification, xenon gas can be introduced into cooling tank 2 through a pipeline. Cooling tank 2 can be cooled by immersing it in liquid nitrogen tank, thereby liquefying the xenon gas inside. The pressure of the liquefied xenon gas is reduced, and it is easier to temporarily store it in cooling tank 2.

[0048] The gas cylinder and cooling tank 2 are connected by a pipeline. When xenon needs to be bottled, cooling tank 2 is removed from the liquid nitrogen tank, and then heated by heating component 4. The xenon in cooling tank 2 will vaporize after heating, and the pressure will increase. This pressure difference allows the xenon to spontaneously enter the gas cylinder. By properly controlling the heating rate, the pressure difference can also be properly controlled to avoid abnormal filling pressure.

[0049] The heating component 4 includes a spray unit and a purging unit. The spray unit can be a nozzle connected to a water source, which heats the cooling tank 2 by spraying water onto it. The purging unit can be a gas pipe connected to a gas source, which heats the opening of the cooling tank 2 by purging it. This is because when using liquid nitrogen to cool the xenon gas inside the cooling tank 2, the xenon gas may crystallize at the opening of the cooling tank 2. Since the opening of the cooling tank 2 is typically small, crystallization can cause blockage. Heating the opening prevents xenon gas crystallization.

[0050] like Figure 1 As shown, the xenon dehydration and purification device may also include a backup purifier 5. When there are many types of impurities to be removed from the xenon, a backup purifier 5 can be added to assist in the purification of the xenon. The backup purifier 5 is existing technology.

[0051] Example 2 The difference between this embodiment and Embodiment 1 is that: The heat exchanger has two heat exchange channels, into which air and water are introduced respectively to exchange heat with xenon gas. The outlet 1112 of the air-vented heat exchange channel can be connected to a purge pipe, the other end of which points to the opening of the cooling tank 2. This allows for both heating of the opening of the cooling tank 2 and efficient utilization of the recovered heat.

[0052] This embodiment also provides a method for xenon dehydration and purification, including the following steps: S100: Evacuate the gas cylinder.

[0053] Specifically, after evacuating the gas cylinders using vacuum pump 3, the gas cylinders are connected to the filling connectors, each of which is equipped with a valve (e.g., ...). Figure 1 (V11A, V11B...V11H in the model). The filling connector is connected to the cooling tank 2 via a filling pipeline, and the connection between the filling connector and the cooling tank 2 can be controlled by controlling the valve on the filling pipeline.

[0054] S200: The xenon gas is dehydrated and purified by the dehydration and purification component 1, and then the xenon gas is introduced into the cooling tank 2.

[0055] Specifically, xenon gas enters the delivery pipeline through the raw material gas inlet 1111, then flows through the dehydration and purification assembly 1 (and the backup purifier 5) to complete the dehydration and purification, and then enters the cooling tank 2.

[0056] S300: Uses liquid nitrogen to cool the cooling tank 2, thereby liquefying and depressurizing the xenon gas.

[0057] Specifically, the cooling tank 2 is immersed in a liquid nitrogen tank to cool it down, so that the xenon gas entering the cooling tank 2 is liquefied and depressurized. During the process, the opening of the cooling tank 2 is purged and heated by a purging unit to prevent xenon gas from crystallizing.

[0058] S400: Connect the gas cylinder to the cooling tank 2, and use the heating component 4 to heat the cooling tank 2, so that the xenon gas is vaporized and pressurized. As the pressure increases, the xenon gas gradually enters the gas cylinder.

[0059] Specifically, the cooling tank 2 is removed from the liquid nitrogen tank, the valves on the filling pipeline and filling connector are opened, and then water is sprayed onto the cooling tank 2 to heat up and vaporize the liquid xenon gas inside the cooling tank 2. After vaporization, the pressure increases and it spontaneously enters the gas cylinder, thus completing the filling process.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A xenon dehydration and purification device, characterized in that, include: The dehydration and purification component (1) includes a shell (11) and a catalytic reaction unit (12), a cooling unit (13) and an adsorption unit (14) connected in sequence. The outer casing (11) includes a housing (111) and a handle (112), the handle (112) being movably connected to the housing (111), and the housing (111) being provided with a material changing window (113). The catalytic reaction unit (12) includes a limiting module (121), a transmission module (122), and multiple annular boxes (123); any adjacent annular boxes (123) are connected through the limiting module (121), so that adjacent annular boxes (123) can move closer to or further away from each other; The plurality of annular boxes (123) include alternating material boxes and plug-in boxes. The material box on one side of the edge is connected to the handle (112), and the material box on the other side of the edge is connected to the cooling unit (13). The plurality of material boxes are connected through the transmission module (122). When the rotating shaft rotates, the plurality of material boxes rotate relative to each other. The material box has a V-shaped notch, and a catalyst plate (124) and a baffle plate (125) are respectively provided on both sides of the V-shaped notch; the plug box has a strip hole (12321). The catalytic reaction unit (12) has a first state and a second state; In the first state, all of the V-shaped notches face the material exchange window (113). In the second state, the catalytic plate (124) and the baffle plate (125) are inserted into the strip hole (12321) of the adjacent plug box in a one-to-one correspondence, and the adjacent annular box bodies (123) are connected. Cooling tank (2) is connected to the dehydration and purification component (1), and the cooling tank (2) is used to temporarily store xenon gas and liquefy xenon gas; The gas cylinder is connected to the cooling tank (2); Heating component (4) is used to heat the cooling tank (2) to vaporize the liquid xenon gas.

2. The xenon dehydration and purification apparatus according to claim 1, characterized in that: The catalyst plate (124) is a permeable plate with a sandwich layer, the sandwich layer being used to fill the catalyst.

3. The xenon dehydration and purification apparatus according to claim 1, characterized in that: The annular box (123) has a cavity in the middle; The limiting module (121) includes a connecting rod (1211) and a limiting block (1212). The two ends of the connecting rod (1211) can be slidably inserted into the cavity of the adjacent annular box (123), and the two ends of the connecting rod (1211) are connected to the limiting block (1212).

4. The xenon dehydration and purification apparatus according to claim 1, characterized in that: The outer circumferential wall of the material box is provided with an arc-shaped groove (12331), and the length of the arc-shaped groove (12331) on each material box is not exactly the same; The transmission module (122) includes a telescopic tube (1221) and a slider. The sliders are slidably disposed in the arc-shaped slot (12331) in a corresponding manner, and multiple sliders are connected through the telescopic tube (1221).

5. The xenon dehydration and purification apparatus according to claim 1, characterized in that: The heating component (4) includes a spray unit for spraying water onto the cooling tank (2).

6. The xenon dehydration and purification apparatus according to claim 5, characterized in that: The heating component (4) also includes a purging unit, which is used to purge and heat the opening of the cooling tank (2).

7. The xenon dehydration and purification apparatus according to claim 1, characterized in that: The annular box (123) is equipped with a heating element.

8. The xenon dehydration and purification apparatus according to claim 7, characterized in that: The cooling unit (13) includes a heat exchanger having at least one heat exchange channel and a purge pipe connected to the heat exchange channel, the other end of which points to the opening of the cooling tank (2).

9. The xenon dehydration and purification apparatus according to claim 1, characterized in that: The adsorption unit (14) includes a molecular sieve.

10. A method for dehydrating and purifying xenon gas, characterized in that, Includes the following steps: Vacuum the gas cylinder; The xenon gas is dehydrated and purified by the dehydration and purification component (1), and then the xenon gas is introduced into the cooling tank (2); The cooling tank (2) is cooled by liquid nitrogen to liquefy and depressurize the xenon gas; The gas cylinder is connected to the cooling tank (2), and the cooling tank (2) is heated by the heating component (4) to vaporize and pressurize the xenon gas. As the pressure increases, the xenon gas gradually enters the gas cylinder.

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