High-efficiency helium purification device adopting low-temperature adsorption method

Abstract

The invention relates to the technical field of solid separation, in particular to the high-end equipment manufacturing industry, in particular to an efficient low-temperature adsorption method helium purification device which comprises a machine body and a material control assembly, a purification cavity is formed in the machine body, helium can flow in the purification cavity from top to bottom, and an adsorbent can also flow in the purification cavity from top to bottom; the material control assembly is used for regulating and controlling the motion state of the adsorbent, the material control assembly has a first control state, and when the material control assembly is in the first control state, the material control assembly is used for mixing and stirring the adsorbent in the purification chamber. According to the helium purification device, the material control assembly is arranged, and when the material control assembly is in the first control state, the material control assembly is used for stirring and mixing the adsorbent in the purification cavity, so that the adsorbent in the purification cavity is in uniform and full contact with helium, impurities in the helium are removed, and the purity of the helium is improved.

Description

Technical Field

[0001] The present invention relates to the field of solid separation technology, in particular to the high-end equipment manufacturing industry, and in particular to a high-efficiency low-temperature adsorption helium purification device. Background Art

[0002] Helium is a natural resource and has important uses in satellite and spacecraft launches, missile weapon industry, airships and other aerostats, low-temperature superconductivity research, semiconductor production, nuclear magnetic resonance imaging, special metal smelting and gas leak detection. Helium is usually obtained from natural gas, which itself contains a variety of impurities. Therefore, the gas obtained from natural gas needs to be separated first, and the helium is separated from the natural gas, and then the separated helium is purified.

[0003] The common process for purifying helium in the prior art is low-temperature adsorption. Specifically, the helium to be purified is passed into a container filled with a specific adsorbent (such as activated carbon), so that the helium passes through the adsorbent, and the adsorbent is used to remove impurities and moisture in the helium. In this process, in order to improve the adsorption efficiency of the adsorbent, a stirring mechanism needs to be set to stir the adsorbent in the purification container so that the adsorbent and the helium are in uniform and sufficient contact. At the same time, in order to improve the purification efficiency of helium, it is also necessary to reduce the regeneration cycle of the adsorbent, that is, shorten the use time of the adsorbent, separate the old adsorbent from the purification container in time, and add the new adsorbent to the purification container. Therefore, the stirring mechanism needs to be stopped regularly and then the adsorbent is replaced. However, the existing helium purification equipment has the following problems: when replacing the adsorbent (such as activated carbon), the material (old adsorbent) is usually discharged at the bottom of the container while the material (new adsorbent) is added at the top of the container. This method is easy to cause waste of new adsorbent or residue of old adsorbent, thereby causing inconsistent adsorption efficiency of the adsorbent, affecting the uniformity of helium purification. Summary of the invention

[0004] Based on this, it is necessary to provide a high-efficiency low-temperature adsorption helium purification device to address the problems existing in the current helium purification equipment, so as to solve the problem that the existing helium purification equipment is prone to waste of new adsorbent or residue of old adsorbent when replacing the adsorbent, thereby causing inconsistent adsorption efficiency of the adsorbent and affecting the uniformity of helium purification.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A high-efficiency low-temperature adsorption helium purification device comprises:

[0007] a body, wherein a purification chamber is provided inside;

[0008] Helium can flow from top to bottom in the purification chamber;

[0009] The adsorbent can also flow from top to bottom within the purification chamber;

[0010] A material control component, which is used to control the motion state of the adsorbent;

[0011] The material control component has a first control state and a second control state;

[0012] When in the first control state, the material control component is used to mix and stir the adsorbent in the purification chamber;

[0013] When in the second control state, the material control component is used to isolate adsorbents with different working times in the purification chamber.

[0014] In one embodiment, the material control assembly includes a rotating mandrel, a waist-shaped plate, a limiting frame and a control plate. The rotating mandrel is located in the purification chamber, the axis of the rotating mandrel is horizontal, the rotating mandrel can rotate around its axis, the waist-shaped plate is fixedly connected to the rotating mandrel, and the rotating mandrel is located at the center of the waist-shaped plate. There are two control plates, and the two control plates are respectively rotatably connected to the two sides of the waist-shaped plate. There are two limiting frames, and the two limiting frames are respectively arranged on the two sides of the waist-shaped plate in opposite directions. The control plate and the waist-shaped plate are configured at an angle, and the limiting frame is used to limit the maximum value of the angle between the control plate and the waist-shaped plate.

[0015] The rotating mandrel can also move in the horizontal direction in a direction perpendicular to the axis of the rotating mandrel;

[0016] The rotating spindle can also be moved in the vertical direction.

[0017] In one of the embodiments, the material control assembly further includes a rotating unit, and the rotating unit is used to drive the rotating spindle to rotate around its axis.

[0018] In one embodiment, the rotating unit includes a rotating drive source, a spline sleeve, a spline shaft, a first bevel gear, a second bevel gear and an installation box. The rotating drive source is arranged at the lower part of the purification chamber, the torque output end of the rotating drive source is fixedly connected to the spline sleeve, the axis of the spline sleeve is vertical, the spline shaft is slidably connected in the spline sleeve, the installation box is located in the purification chamber, and an installation cavity is provided inside the installation box. One end of the spline shaft away from the spline sleeve passes through the installation cavity and is fixedly connected to the first bevel gear, and one end of the rotating core shaft close to the first bevel gear also passes through the installation cavity and is fixedly connected to the second bevel gear, and the second bevel gear is meshed with the first bevel gear.

[0019] In one embodiment, the material control assembly further includes a vertical drive source, the axis of the telescopic end of the vertical drive source is vertical, and the telescopic end of the vertical drive source is arranged at the bottom of the installation box.

[0020] In one embodiment, the material control component also includes a horizontal driving source, the axis of the telescopic end of the horizontal driving source is horizontal, and the telescopic end of the horizontal driving source can drive the outer shell part of the rotating driving source and the outer shell part of the vertical driving source to move synchronously in the horizontal direction along the direction perpendicular to the axis of the rotating core shaft.

[0021] In one of the embodiments, a sliding plate is provided on the outside of the installation box, and synchronous baffles are slidably connected to both ends of the sliding plate. The synchronous baffle can move synchronously with the sliding plate in the vertical direction, and move relatively in the horizontal direction in a direction perpendicular to the axis of the rotating core shaft. The synchronous baffle is in sliding contact with the inner circumferential wall of the purification chamber, and the side of the control plate and the side of the synchronous baffle are located in the same vertical plane.

[0022] In one embodiment, a guide groove is further provided on the side wall of the purification chamber, and the guide groove includes a vertical guide section and an inclined guide section, the vertical guide section and the inclined guide section are connected, and a guide column is provided on the outer surface of the sliding plate close to the purification chamber, and the guide column is slidably connected in the guide groove.

[0023] In one embodiment, an opening is provided at the bottom of the purification chamber, and a sealing block is slidably provided in the opening. The sealing block can slide along the opening. When the sealing block slides along the opening until the sealing block is combined with the opening, the opening is closed. When the sealing block slides along the opening until the sealing block is separated from the opening, the opening is opened.

[0024] In one embodiment, a high-efficiency low-temperature adsorption helium purification device also includes a refrigeration module and a buffer module. The refrigeration module is used to perform low-temperature treatment on the helium to be introduced into the purification chamber, and the buffer module is used to adjust the pressure of the helium after low-temperature treatment.

[0025] The beneficial effects of the present invention are:

[0026] The present invention is provided with a material control component. When the material control component is in a first control state, the material control component is used to stir and mix the adsorbent in the purification chamber so that the adsorbent in the purification chamber is in uniform and sufficient contact with the helium, thereby removing impurities in the helium and improving the purity of the helium. Moreover, since the material control component is far away from the helium outlet, the powder in the adsorbent is not easy to be discharged outward through the helium outlet, which can reduce the impurity content of the helium discharged from the helium outlet, so that the purity of the helium is higher. When the material control component is switched to a second control state, the adsorbent flows from the top to the bottom. At this time, the adsorbent flowing down from the upper part of the purification chamber is located above the material control component, and the old adsorbent under the material control component flows downward out of the purification chamber, so that the replacement of the new and old adsorbents is realized, so that the waste of the new adsorbent or the residue of the old adsorbent when replacing the adsorbent can be reduced, so that the adsorption efficiency of the adsorbent remaining in the purification chamber is basically the same, thereby improving the purification efficiency of the adsorbent for helium. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is an overall schematic diagram of a high-efficiency low-temperature adsorption helium purification device of the present invention;

[0028] Figure 2 It is a side view of a high-efficiency low-temperature adsorption helium purification device of the present invention;

[0029] Figure 3 for Figure 2 Middle AA section view;

[0030] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at C in the middle;

[0031] Figure 5 for Figure 3 Schematic diagram of the enlarged structure at D in the middle;

[0032] Figure 6 for Figure 2 Middle BB section view;

[0033] Figure 7 It is a schematic diagram of a first control state of a material control component in a high-efficiency low-temperature adsorption helium purification device of the present invention;

[0034] Figure 8 This is a schematic diagram of a second control state of a material control component in a high-efficiency low-temperature adsorption helium purification device of the present invention.

[0035] in:

[0036] 100, body; 110, purification chamber; 111, guide groove; 111a, vertical guide section; 111b, inclined guide section; 120, storage box; 121, opening; 130, blocking block; 140, hydraulic rod; 150, flushing module; 160, helium inlet; 170, helium outlet; 180, feed inlet; 200, material control component; 210, rotating mandrel; 220, waist-shaped plate; 230, limit frame; 240, control board; 250, rotating unit; 251, rotating drive source; 252, spline sleeve; 253, spline shaft; 254, first bevel gear; 255, second bevel gear; 256, installation box; 260, vertical drive source; 280, sliding plate; 290, synchronous baffle; 300, freezing module; 400, buffer module. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0038] The serial numbers of the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0039] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] like Figure 1-Figure 8As shown, a high-efficiency low-temperature adsorption helium purification device includes a body 100 and a material control component 200. A purification chamber 110 is provided inside the body 100. Helium can flow from top to bottom in the purification chamber 110, and the adsorbent can also flow from top to bottom in the purification chamber 110. The material control component 200 is located in the purification chamber 110. The material control component 200 is used to regulate the movement state of the adsorbent. The material control component 200 has a first control state and a second control state. When in the first control state, the material control component 200 is used to mix and stir the adsorbent in the purification chamber 110. When in the second control state, the material control component 200 is used to isolate adsorbents with different working times in the purification chamber 110.

[0041] When in use, the staff first adds the adsorbent (taking activated carbon as an example) into the purification chamber 110, which accounts for about two-thirds of the volume of the purification chamber 110, and then allows the helium to flow from top to bottom in the purification chamber 110. At this time, the helium passes through the adsorbent and is discharged from the exhaust port of the purification chamber 110 to the outside of the purification chamber 110. At the same time, the material control component 200 is started to put the material control component 200 in a first control state. At this time, the material control component 200 stirs and mixes the adsorbent in the purification chamber 110 so that the adsorbent in the purification chamber 110 is evenly and fully in contact with the helium, thereby removing impurities in the helium and improving the purity of the helium. When the working time of the adsorbent in the purification chamber 110 reaches a preset time, the adsorbent in the purification chamber 110 needs to be replaced. At this time, the material control component 200 The material control component 200 automatically switches from the first control state to the second control state, at which time the adsorbent flows from top to bottom in the purification chamber 110 (i.e., new adsorbent is added to the purification chamber 110 while the old adsorbent is discharged), the new adsorbent is located above the material control component 200, and the old adsorbent is located below the material control component 200, that is, adsorbents with different working times are separated by the material control component 200. When the old adsorbent below the material control component 200 is completely discharged, the adsorbent stops flowing from top to bottom, and the material control component 200 switches to the first control state again. In this way, the waste of new adsorbent or the residue of old adsorbent when replacing the adsorbent can be reduced, so that the adsorption efficiency of the adsorbent remaining in the purification chamber 110 is basically the same, thereby improving the purification efficiency of the adsorbent for helium.

[0042] In a further embodiment, Figure 3 and Figure 7As shown, the material control component 200 includes a rotating core shaft 210, a waist-shaped plate 220, a limit frame 230 and a control plate 240. The axis of the rotating core shaft 210 is horizontal, and the rotating core shaft 210 can rotate around its axis. The rotating core shaft 210 is located in the purification chamber 110. The waist-shaped plate 220 is fixedly connected to the rotating core shaft 210, and the rotating core shaft 210 is located at the center of the waist-shaped plate 220. There are two control plates 240, and the two control plates 240 are respectively rotatably connected to the two sides of the waist-shaped plate 220. There are two limit frames 230, and the two limit frames 230 are respectively arranged on the two sides of the waist-shaped plate 220 in opposite directions. The control plate 240 and the waist-shaped plate 220 are configured at an angle. The limit frame 230 is used to limit the maximum value of the angle between the control plate 240 and the waist-shaped plate 220. The rotating core shaft 210 can also move in the horizontal direction along a direction perpendicular to the axis of the rotating core shaft 210, and the rotating core shaft 210 can also move in the vertical direction.

[0043] like Figure 7 As shown, the rotating core shaft 210 drives the waist-shaped plate 220 to rotate clockwise. At this time, under the resistance of the adsorbent, the angle between the control plate 240 and the waist-shaped plate 220 gradually decreases until the control plate 240 is close to the waist-shaped plate 220. At this time, when the material control component 200 is in the first control state, then under the rotation of the control plate 240 and the waist-shaped plate 220, the adsorbent inside the purification chamber 110 is stirred and mixed, so that the adsorbent in the purification chamber 110 is evenly and fully in contact with the helium, thereby removing impurities in the helium and improving the purity of the helium.

[0044] When the adsorbent needs to be replaced, Figure 8As shown, at this time, the rotating core shaft 210 drives the waist-shaped plate 220 to rotate in the opposite direction. At this time, under the resistance of the adsorbent, the angle between the waist-shaped plate 220 and the control plate 240 gradually increases, so that the control plate 240 abuts against the inner wall of the purification chamber 110. As the rotating core shaft 210 continues to rotate in the opposite direction, the angle between the control plate 240 and the waist-shaped plate 220 continues to increase. When the two control plates 240 rotate to abut against the limiting frame 230, the angle between the control plate 240 and the limiting frame 230 reaches a maximum value of about ninety degrees. At this time, the two control plates 240 are both abutted against the inner wall of the purification chamber 110. The two control plates 240 and the waist-shaped plate 220 isolate the internal area of ​​the purification chamber 110 into two upper and lower areas. At this time, the rotating core shaft 210 stops rotating. At this time, the two control The upper surface of the plate 240 is equivalent to two mutually parallel inclined guide surfaces. At this time, the material control component 200 is in the second control state. Next, the adsorbent is made to flow from top to bottom. At this time, the new adsorbent enters the purification chamber 110 from the upper part of the purification chamber 110, and is stored in the upper area of ​​the material control component 200, while the old adsorbent is located below the material control component 200. When the adsorbent below the material control component 200 is discharged, the adsorbent stops flowing from top to bottom, and then the material control component 200 is switched to the first control state. In this way, the waste of new adsorbent or the residue of old adsorbent when replacing the adsorbent can be reduced, so that the adsorption efficiency of the adsorbent remaining in the purification chamber 110 is basically the same, thereby improving the adsorbent's purification efficiency for helium.

[0045] It should also be noted that, in order to allow the adsorbent to flow from top to bottom, specifically, a storage box 120 is provided inside the body 100, and the storage box 120 is closed circumferentially to form a purification chamber 110. A feed port 180 is provided at the upper portion of the purification chamber 110 for adding new adsorbent to the interior of the purification chamber 110. An opening 121 is provided at the bottom of the purification chamber 110, and a blocking block 130 is slidably provided in the opening 121. The blocking block 130 can slide along the opening 121. When the blocking block 130 slides along the opening 121 until the blocking block 130 is combined with the opening 121, the opening 121 is closed. When the blocking block 130 slides along the opening 121 until the blocking block 130 is separated from the opening 121, the opening 121 is opened. At this time, the material control component 200 is in the second working state. At this time, the opening 121 at the lower portion of the purification chamber 110 is opened for replacing the adsorbent inside the purification chamber 110.

[0046] When the material control assembly 200 is in the first control state, the blocking block 130 slides along the opening 121 until the blocking block 130 is combined with the opening 121 , and the opening 121 is closed.

[0047] When the material control component 200 is in the second control state, the blocking block 130 slides along the opening 121 until the blocking block 130 is separated from the opening 121, and the opening 121 is opened. At the same time, the feed port 180 is opened to add new adsorbent to the inside of the purification chamber 110. Specifically, in order to drive the blocking block 130 to separate from or combine with the opening 121, a hydraulic rod 140 is arranged at the bottom of the body 100, the axis of the hydraulic rod 140 is vertical, and the telescopic end of the hydraulic rod 140 is fixedly connected to the blocking block 130, so that the blocking block 130 is driven to move by the extension or shortening of the telescopic end of the hydraulic rod 140, thereby realizing the separation or combination of the blocking block 130 and the opening 121. In addition, in order to reduce the amount of old adsorbent remaining on the blocking block 130, a flushing module 150 is also arranged at the lower position of the body 100, which is used to flush the old adsorbent remaining on the blocking block 130 through the flushing module 150.

[0048] In a further embodiment, Figure 7 As shown, the material control component 200 also includes a rotating unit 250, which is used to drive the rotating core shaft 210 to rotate around its axis. The material control component 200 also includes a vertical driving source 260, which is any one of a linear cylinder, a hydraulic cylinder or an electric telescopic rod. The axis of the telescopic end of the vertical driving source 260 is vertical, and the telescopic end of the vertical driving source 260 is used to drive the rotating core shaft 210 to move in the vertical direction.

[0049] When the material control assembly 200 is in the first control state, it is only necessary to start the rotating unit 250 to drive the rotating core shaft 210 to rotate around its axis through the rotating unit 250 .

[0050] When the material control component 200 is in the second control state, the telescopic end of the vertical driving source 260 first drives the rotating core shaft 210 to move upward in the vertical direction by a preset distance. At the same time, the rotating core shaft 210, the waist-shaped plate 220 and the control plate 240 are rotated counterclockwise so that the two control plates 240 are in contact with the inner wall of the purification chamber 110, so that the two control plates 240 and the waist-shaped plate 220 isolate the internal area of ​​the purification chamber 110 into two upper and lower areas. The reason why the rotating core shaft 210 is moved upward in the vertical direction by a preset distance is to enable the waist-shaped plate 220 and the control plate 240 to move to the top of the old adsorbent, so that after adding new adsorbent to the inside of the purification chamber 110, the new and old adsorbents can be completely isolated by the material control component 200.

[0051] In a further embodiment, Figure 4 and Figure 5As shown, the rotating unit 250 includes a rotating driving source 251, a spline sleeve 252, a spline shaft 253, a first bevel gear 254, a second bevel gear 255 and a mounting box 256. The rotating driving source 251 is arranged at the lower part of the purification chamber 110. The rotating driving source 251 is a driving motor. The torque output end of the rotating driving source 251 is fixedly connected to the spline sleeve 252. The axis of the spline sleeve 252 is vertical. The spline shaft 253 is slidably connected in the spline sleeve 252. The mounting box 256 is located in the purification chamber 110. An installation cavity is provided inside the installation box 256. One end of the spline shaft 253 away from the spline sleeve 252 penetrates into the installation cavity and is fixedly connected to the first bevel gear 254. One end of the rotating core shaft 210 close to the first bevel gear 254 also penetrates into the installation cavity and is fixedly connected to the second bevel gear 255. The second bevel gear 255 is meshed with the first bevel gear 254.

[0052] When the material control component 200 is in the first control state, the rotating drive source 251 is started, and the rotating drive source 251 drives the spline sleeve 252 to rotate clockwise, the spline sleeve 252 drives the spline shaft 253 to rotate, the spline shaft 253 drives the first bevel gear 254 to rotate, the first bevel gear 254 drives the second bevel gear 255 to rotate, and the second bevel gear 255 drives the rotating core shaft 210 to rotate, thereby causing the rotating core shaft 210 to rotate around its axis.

[0053] When the material control component 200 is in the second control state, the rotating drive source 251 rotates counterclockwise, and at the same time, the telescopic end of the vertical drive source 260 extends upward, and the telescopic end of the vertical drive source 260 drives the rotating core shaft 210 to move vertically upward, so that the rotating core shaft 210 moves vertically upward while rotating around its axis, so that the waist-shaped plate 220 and the control plate 240 move to the top of the old adsorbent and isolate the area where the old adsorbent is located from the area above the waist-shaped plate 220 and the control plate 240, and the adsorbent can flow from top to bottom.

[0054] After the replacement of the old adsorbent with the new one is completed, the adsorbent stops flowing from top to bottom, and then the rotation drive source 251 continues to rotate clockwise, and at the same time, the vertical drive source 260 is reset.

[0055] It should also be added that in order to enable the telescopic end of the vertical drive source 260 to drive the rotating core shaft 210 to move in the vertical direction, specifically, the telescopic end of the vertical drive source 260 is fixedly connected to the bottom of the mounting box 256, thereby driving the mounting box 256 to move in the vertical direction to achieve the telescopic end of the vertical drive source 260 driving the rotating core shaft 210 to move in the vertical direction.

[0056] In a further embodiment, the material control component 200 also includes a horizontal driving source, which is any one of a linear cylinder, a hydraulic cylinder or an electric telescopic rod. The axis of the telescopic end of the horizontal driving source is horizontal, and the telescopic end of the horizontal driving source can drive the outer shell part of the rotating driving source 251 and the outer shell part of the vertical driving source 260 to move synchronously in the horizontal direction along a direction perpendicular to the axis of the rotating core shaft 210.

[0057] The horizontal driving source is provided to drive the outer shell part of the rotating driving source 251 and the outer shell part of the vertical driving source 260 to move synchronously in the horizontal direction along the direction perpendicular to the axis of the rotating core shaft 210 through the telescopic end of the horizontal driving source, thereby adjusting the position of the waist-shaped plate 220 so that when the material control component 200 is in the second control state, both control plates 240 can abut against the inner wall of the purification chamber 110.

[0058] It should also be noted that if Figure 7 As shown, in order to make the helium flow from top to bottom, specifically, a helium inlet 160 is provided at the upper left portion of the storage box 120, and a helium outlet 170 is provided at the middle right portion of the storage box 120. The helium inlet 160 is provided above the helium outlet 170 because the density of helium is smaller than that of air. The helium inlet 160 is provided above the helium outlet 170 to extend the residence time of the helium in the purification chamber 110, so that the helium is fully purified.

[0059] When the material control component 200 is in the first control state, the waist-shaped plate 220 and the control plate 240 are biased away from the helium outlet 170. In this way, under the stirring action of the material control component 200, the fine powder in the adsorbent is not easily discharged outward through the helium outlet 170, which can reduce the content of helium impurities discharged from the helium outlet 170 and improve the purification degree of the helium.

[0060] In a further embodiment, Figure 7 As shown, a sliding plate 280 is provided on the outside of the installation box 256, and synchronous baffles 290 are slidably connected to both ends of the sliding plate 280. The synchronous baffle 290 can move synchronously with the sliding plate 280 in the vertical direction, and move relatively in the horizontal direction along a direction perpendicular to the axis of the rotating core shaft 210. The synchronous baffle 290 is in sliding contact with the inner circumferential wall of the purification chamber 110, and the side of the control plate 240 and the side of the synchronous baffle 290 are located in the same vertical plane.

[0061] This is to avoid a gap between the material control assembly 200 and the inner wall of the purification chamber 110 when the material control assembly 200 is in the second control state, which would cause the new adsorbent to leak downward through the gap and cause waste of the new adsorbent.

[0062] In a further embodiment, Figure 3 , Figure 7 and Figure 8 As shown, a guide groove 111 is also provided on the side wall of the purification chamber 110, and the guide groove 111 includes a vertical guide section 111a and an inclined guide section 111b, and the vertical guide section 111a and the inclined guide section 111b are connected. A guide column is provided on the outer surface of the sliding plate 280 close to the purification chamber 110, and the guide column is slidably connected in the guide groove 111.

[0063] The vertical guide section 111a is provided to guide and limit the vertical movement of the sliding plate 280 and the synchronous baffle 290, and the inclined guide section 111b is provided to control the proportional relationship between the horizontal movement distance of the horizontal driving source and the vertical movement distance of the vertical driving source 260, so that the rising height of the waist-shaped plate 220 and the control plate 240 is adapted to the horizontal movement distance of the waist-shaped plate 220 and the control plate 240.

[0064] In a further embodiment, Figure 3 As shown, the high-efficiency low-temperature adsorption helium purification device also includes a refrigeration module 300 and a buffer module 400. The refrigeration module 300 is used to perform low-temperature treatment on the helium to be introduced into the purification chamber 110, and the buffer module 400 is used to adjust the pressure of the helium after low-temperature treatment.

[0065] When in use, the helium to be purified should first be subjected to low-temperature treatment through the buffer module 400, and then the low-temperature treated helium should be transported to the buffer module 400 for pressure adjustment, and then the pressure-adjusted helium should be introduced into the helium inlet 160, so that the helium to be purified can enter the purification chamber 110.

[0066] In a further embodiment, Figure 1 As shown, a discharge port is also provided at the lower part of the body 100 , and the discharge port is used to discharge the old adsorbent out of the body 100 .

[0067] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A highly efficient low-temperature adsorption helium purification device, characterized in that: include: a body, wherein a purification chamber is provided inside; Helium can flow from top to bottom in the purification chamber; The adsorbent can also flow from top to bottom within the purification chamber; A material control component, which is used to control the motion state of the adsorbent; The material control component has a first control state and a second control state; When in the first control state, the material control component is used to mix and stir the adsorbent in the purification chamber; When in the second control state, the material control component is used to isolate adsorbents with different working times in the purification chamber.

2. The high-efficiency low-temperature adsorption helium purification device according to claim 1 is characterized in that: The material control assembly includes a rotating mandrel, a waist-shaped plate, a limiting frame and a control plate. The axis of the rotating mandrel is horizontal, the rotating mandrel can rotate around its axis, the rotating mandrel is located in the purification chamber, the waist-shaped plate is fixedly connected to the rotating mandrel, and the rotating mandrel is located at the center of the waist-shaped plate. There are two control plates, and the two control plates are respectively rotatably connected to the two sides of the waist-shaped plate. There are two limiting frames, and the two limiting frames are respectively arranged on the two sides of the waist-shaped plate in opposite directions. The control plate and the waist-shaped plate are configured at an angle, and the limiting frame is used to limit the maximum value of the angle between the control plate and the waist-shaped plate; The rotating mandrel can also move in the horizontal direction in a direction perpendicular to the axis of the rotating mandrel; The rotating spindle can also be moved in the vertical direction.

3. The high-efficiency low-temperature adsorption helium purification device according to claim 2 is characterized in that: The material control assembly further comprises a rotating unit, which is used for driving the rotating mandrel to rotate around its axis.

4. The high-efficiency low-temperature adsorption helium purification device according to claim 3 is characterized in that: The rotating unit comprises a rotating driving source, a spline sleeve, a spline shaft, a first bevel gear, a second bevel gear and a mounting box, wherein the rotating driving source is arranged at the lower part of the purification chamber, the torque output end of the rotating driving source is fixedly connected to the spline sleeve, the axis of the spline sleeve is vertical, and the spline shaft is slidably connected in the spline sleeve; The mounting box is located in the purification chamber, and a mounting cavity is provided inside the mounting box. One end of the spline shaft away from the spline sleeve passes through the mounting cavity and is fixedly connected to the first bevel gear, and one end of the rotating core shaft close to the first bevel gear also passes through the mounting cavity and is fixedly connected to the second bevel gear, and the second bevel gear is meshed with the first bevel gear.

5. The high-efficiency low-temperature adsorption helium purification device according to claim 4 is characterized in that: The material control assembly also includes a vertical drive source, the axis of the telescopic end of the vertical drive source is vertical, and the telescopic end of the vertical drive source is arranged at the bottom of the installation box.

6. The high-efficiency low-temperature adsorption helium purification device according to claim 5, characterized in that: The material control component also includes a horizontal driving source, the axis of the telescopic end of the horizontal driving source is horizontal, and the telescopic end of the horizontal driving source can drive the rotating driving source and the vertical driving source to move synchronously in the horizontal direction along a direction perpendicular to the axis of the rotating core shaft.

7. The high-efficiency low-temperature adsorption helium purification device according to claim 4 is characterized in that: A sliding plate is arranged on the outside of the installation box, and synchronous baffles are slidably connected to both ends of the sliding plate. The synchronous baffle can move synchronously with the sliding plate in the vertical direction, and move relatively in the horizontal direction in a direction perpendicular to the axis of the rotating core shaft. The synchronous baffle is in sliding contact with the inner circumferential wall of the purification chamber, and the side surface of the control plate and the side surface of the synchronous baffle are located in the same vertical plane.

8. The high-efficiency low-temperature adsorption helium purification device according to claim 7, characterized in that: A guide groove is also provided on the side wall of the purification chamber, and the guide groove includes a vertical guide section and an inclined guide section, the vertical guide section and the inclined guide section are connected, and a guide column is provided on the outer side surface of the sliding plate close to the purification chamber, and the guide column is slidably connected in the guide groove.

9. The high-efficiency low-temperature adsorption helium purification device according to claim 1, characterized in that: The bottom of the purification chamber is provided with an opening, and the blocking block can slide along the extension direction of the opening. When the blocking block slides along the opening until the blocking block and the opening are combined, the opening is closed, and when the blocking block slides along the opening until the blocking block and the opening are separated, the opening is opened.

10. The high-efficiency low-temperature adsorption helium purification device according to claim 1, characterized in that: It also includes a freezing module and a buffer module. The freezing module is used to perform low-temperature treatment on the helium to be introduced into the purification chamber, and the buffer module is used to adjust the pressure of the helium after low-temperature treatment.

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