Split rectification column for krypton-xenon purification
By combining the lower connector, upper connector, and sealing ring, the problem of pre-welding before assembly of the split distillation column is solved, achieving efficient and stable assembly and anti-loosening effect.
Patent Information
- Application Number
- CN202522314406.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-31
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-10-31
AI Technical Summary
The separate distillation column requires extensive pre-welding before assembly, which affects the efficiency of assembly.
The distillation column module adopts a combination structure of lower connector, upper connector, large sealing ring and small sealing ring, and achieves stable combination sealing through ring groove insertion and thread assembly, avoiding pre-welding.
It improves the assembly efficiency of split-type distillation columns and enhances the anti-loosening effect.
Smart Images
Figure CN224925616U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of distillation column technology, specifically a split-type distillation column for the purification of krypton and xenon. Background Technology
[0002] The split-type distillation column for krypton-xenon refining is a core device specifically designed for extracting and purifying krypton and xenon, two high-value rare gases, from the air. Its core design concept is to break down the traditional, large, integrated distillation column into multiple independent columns that work in series. Each column focuses on a specific separation task, thereby achieving efficient and high-purity separation of krypton and xenon, which have very similar boiling points. Take the split-type distillation column for krypton-xenon refining mentioned above as an example.
[0003] Some split-type distillation columns used for krypton-xenon refining employ a mounting structure in which flange-type structures for threaded assembly are welded to the upper and lower split modules of the distillation column, and are assembled with auxiliary components such as sealing rings and flexible gaskets. The aforementioned split-assembly distillation column requires extensive pre-welding before assembly, which affects the assembly efficiency of the split-type distillation column. Therefore, to address the above problems, a split-type distillation column for krypton-xenon refining is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a split-type distillation column for krypton-xenon refining, which solves the problem mentioned above that the split-assembled distillation column requires a large amount of pre-welding before assembly, affecting the efficiency of the combined installation of the split-type distillation column.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A split-type distillation column for krypton-xenon refining includes a lower connector, an upper connector, a large sealing ring, and a small sealing ring for installation and use in the split-type distillation column for krypton-xenon refining. The upper connector is provided at the top of the lower connector, and the large sealing ring and the small sealing ring are provided between the lower connector and the upper connector. The lower connector includes a first annular disk, a first silicone ring, a first retaining plate, an insert rod, a first connecting rod, a first threaded block, a first locking nut, and a first locking cap. The first silicone ring is inserted into the inner groove below the first annular disk. The first retaining plate is fixedly connected to the inner wall of one end of the first annular disk. The insert rod and the first connecting rod are fixedly connected to the top of the first annular disk. The first threaded block is fixedly connected to the top of the first connecting rod. The first locking nut and the first locking cap are threaded on the outer side of the first threaded block.
[0006] Preferably, the upper connecting member includes a second ring, a second silicone ring, a second retaining plate, a second connecting rod, a second threaded block, a second locking nut, and a second locking cap. The second silicone ring is inserted into the inner groove above the second ring. The second retaining plate is fixedly connected to the inner wall of one end of the second ring. The second connecting rod is fixedly connected to the bottom end of the second ring. The second threaded block is fixedly connected to the bottom end of the second connecting rod. The second locking nut and the second locking cap are threaded onto the outer side of the second threaded block.
[0007] Preferably, a groove is formed below the second annular disk and a groove is formed above the first annular disk to insert a large sealing ring and a small sealing ring.
[0008] Preferably, the insert rod is inserted into the interior of the second ring disk, the interior of the second silicone ring, and the interior of the second card plate; the first connecting rod is inserted into the interior of the second ring disk; and the second connecting rod is inserted into the interior of the first ring disk.
[0009] Preferably, a rubber ring is inserted into a groove between the bottom of the first locking nut and the second ring disc, a rubber ring is inserted into a groove between the top of the first locking nut and the bottom of the first locking cover, a rubber ring is inserted into a groove between the top of the second locking nut and the first ring disc, and a rubber ring is inserted into a groove between the bottom of the second locking nut and the top of the second locking cover.
[0010] Compared with the prior art, the beneficial effects of this utility model are: In this utility model, through the aforementioned lower connecting member, upper connecting member, large sealing ring, and small sealing ring, an annular groove is opened below the second annular disk and an annular groove is opened above the first annular disk to insert and place the large sealing ring and small sealing ring. The insert rod is inserted into the interior of the second annular disk, the interior of the second silicone ring, the interior of the distillation column split module set above, and the interior of the second card plate. The first connecting rod is inserted into the interior of the second annular disk, and the second connecting rod is inserted into the interior of the first annular disk. The outer thread of the first threaded block is threaded with a first locking nut and a first locking cap, and the outer thread of the second threaded block is threaded with a second locking nut and a second locking cap. The installation structure can stably combine and seal the distillation column assembled in two separate parts. The distillation column assembled in two separate parts does not require a lot of pre-welding treatment before assembly, which improves the assembly efficiency of the split distillation column, and the above-mentioned installation structure has a good anti-loosening effect. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the disassembled structure of the large sealing ring and the small sealing ring of this utility model; Figure 3This is a schematic diagram of the installation structure of the lower connector and the upper connector of this utility model; Figure 4 This is a schematic diagram of the installation cross-sectional structure of the lower connector and the upper connector of this utility model; Figure 5 This utility model Figure 4 A schematic diagram of the structure at point A.
[0012] In the diagram: 1. Lower connector; 11. First ring disc; 12. First silicone ring; 13. First clamping plate; 14. Insert rod; 15. First connecting rod; 16. First threaded block; 17. First locking nut; 18. First locking cover; 2. Upper connector; 21. Second ring disc; 22. Second silicone ring; 23. Second clamping plate; 24. Second connecting rod; 25. Second threaded block; 26. Second locking nut; 27. Second locking cover; 3. Large sealing ring; 4. Small sealing ring. Detailed Implementation
[0013] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the utility model.
[0014] In the embodiments of the utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the position or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of the utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Similarly, words such as "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. Words such as "comprising" or "including" mean that the element or object preceding the word covers the element or object listed after the word and its equivalents, without excluding other elements or objects.
[0015] Furthermore, in the embodiments of the utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0016] Please see Figure 1-5 This utility model provides a technical solution: A split-type distillation column for krypton-xenon refining includes a lower connector 1, an upper connector 2, a large sealing ring 3, and a small sealing ring 4 for installation of the split-type distillation column for krypton-xenon refining. The upper connector 2 is provided at the top of the lower connector 1. The large sealing ring 3 and the small sealing ring 4 are provided between the lower connector 1 and the upper connector 2. The lower connector 1 includes a first annular plate 11, a first silicone ring 12, a first retaining plate 13, an insert rod 14, a first connecting rod 15, a first threaded block 16, a first locking nut 17, and a first locking cap 18. The first silicone ring 12 is inserted into the inner groove below the first annular plate 11. The first retaining plate 13 is fixedly connected to the inner wall of one end of the first annular plate 11. The insert rod 14 and the first connecting rod 15 are fixedly connected to the top of the first annular plate 11. The first threaded block 16 is fixedly connected to the top of the first connecting rod 15. The first locking nut 17 and the first locking cap 18 are threaded on the outer side of the first threaded block 16.
[0017] The upper connector 2 includes a second annular disc 21, a second silicone ring 22, a second retaining plate 23, a second connecting rod 24, a second threaded block 25, a second locking nut 26, and a second locking cap 27. The second silicone ring 22 is inserted into the inner groove above the second annular disc 21. The second retaining plate 23 is fixedly connected to the inner wall of one end of the second annular disc 21. The second connecting rod 24 is fixedly connected to the bottom end of the second annular disc 21. The second threaded block 25 is fixedly connected to the bottom end of the second connecting rod 24. The second locking nut 26 and the second locking cap 27 are threaded onto the outer side of the second threaded block 25. This arrangement forms the assembly structure of the upper connector 2. A large sealing ring 3 and a small sealing ring 4 are inserted into an annular groove below the second annular disc 21 and an annular groove above the first annular disc 11, respectively. The large sealing ring 3 and the small sealing ring 4, as described above, form an assembly seal. The effect is that the insertion rod 14 is inserted into the interior of the second ring disc 21, the interior of the second silicone ring 22, and the interior of the second clamping plate 23; the first connecting rod 15 is inserted into the interior of the second ring disc 21; and the second connecting rod 24 is inserted into the interior of the first ring disc 11. Through the above arrangement, an assembly structure of the lower connecting member 1 and the upper connecting member 2 is formed. A rubber ring is inserted into an annular groove between the bottom of the first locking nut 17 and the second ring disc 21; a rubber ring is inserted into an annular groove between the top of the first locking nut 17 and the bottom of the first locking cover 18; a rubber ring is inserted into an annular groove between the top of the second locking nut 26 and the first ring disc 11; and a rubber ring is inserted into an annular groove between the bottom of the second locking nut 26 and the top of the second locking cover 27. The rubber rings provided above are used to increase the friction force and improve the anti-loosening effect.
[0018] Workflow: This utility model provides an installation structure for a split-type distillation column for krypton-xenon refining. A first silicone ring 12 is inserted into the inner groove below the first annular disk 11, and a second silicone ring 22 is inserted into the inner groove above the second annular disk 21. A first retaining plate 13 is inserted into the lower split-type distillation column module, and the first silicone ring 12 is fitted into the lower split-type distillation column module. A second retaining plate 23 is inserted into the upper split-type distillation column module, and the second silicone ring 22 is fitted into the upper split-type distillation column module. The body module is fitted together. A large sealing ring 3 and a small sealing ring 4 are inserted into a groove below the second annular disk 21 and above the first annular disk 11. The aforementioned first silicone ring 12, second silicone ring 22, large sealing ring 3, and small sealing ring 4 provide a sealing effect. The insertion rod 14 is inserted into the interior of the second annular disk 21, the interior of the second silicone ring 22, the interior of the distillation column sub-module above, and the interior of the second clamping plate 23. The first connecting rod 15 is inserted into the interior of the second annular disk 21. The connecting rod 24 is inserted into the first ring plate 11. A rubber ring is inserted into a groove between the bottom of the first locking nut 17 and the second ring plate 21. A rubber ring is inserted into a groove between the top of the first locking nut 17 and the bottom of the first locking cover 18. A rubber ring is inserted into a groove between the top of the second locking nut 26 and the first ring plate 11. A rubber ring is inserted into a groove between the bottom of the second locking nut 26 and the top of the second locking cover 27. The first locking nut 17 and the first locking cover 18 are threaded on the outer side of the first threaded block 16. The second locking nut 26 and the second locking cover 27 are threaded on the outer side of the second threaded block 25. From a top view, the first locking nut 17 and the second locking nut 26 are installed clockwise, and the first locking cover 18 and the second locking cover 27 are installed counterclockwise, forming a double nut anti-loosening fastening principle. The installation structure can provide a stable combination and sealing assembly for the upper and lower split-assembly distillation column, and the above installation structure has a good anti-loosening effect.
[0019] Although embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A split-type distillation column for krypton-xenon refining, comprising a lower connector (1), an upper connector (2), a large sealing ring (3), and a small sealing ring (4) for installation of the split-type distillation column for krypton-xenon refining, characterized in that: The lower connector (1) is provided with an upper connector (2) at its top end. A large sealing ring (3) and a small sealing ring (4) are provided between the lower connector (1) and the upper connector (2). The lower connector (1) includes a first ring disc (11), a first silicone ring (12), a first retaining plate (13), a plug rod (14), a first connecting rod (15), a first threaded block (16), a first locking nut (17), and a first locking cover (18). The first silicone ring (12) is inserted into the inner groove below the first ring disc (11). The first retaining plate (13) is fixedly connected to the inner wall of one end of the first ring disc (11). The plug rod (14) and the first connecting rod (15) are fixedly connected to the top end of the first ring disc (11). The first threaded block (16) is fixedly connected to the top end of the first connecting rod (15). The first locking nut (17) and the first locking cover (18) are threaded on the outer side of the first threaded block (16).
2. The split-type distillation column for krypton-xenon refining according to claim 1, characterized in that: The upper connector (2) includes a second ring disc (21), a second silicone ring (22), a second retaining plate (23), a second connecting rod (24), a second threaded block (25), a second locking nut (26), and a second locking cover (27). The second silicone ring (22) is inserted into the inner groove above the second ring disc (21). The second retaining plate (23) is fixedly connected to the inner wall of one end of the second ring disc (21). The second connecting rod (24) is fixedly connected to the bottom end of the second ring disc (21). The second threaded block (25) is fixedly connected to the bottom end of the second connecting rod (24). The second locking nut (26) and the second locking cover (27) are threaded on the outer side of the second threaded block (25).
3. A split-type distillation column for krypton-xenon refining according to claim 2, characterized in that: A ring groove is provided below the second ring disc (21) and a ring groove is provided above the first ring disc (11) to insert a large sealing ring (3) and a small sealing ring (4).
4. A split-type distillation column for krypton-xenon refining according to claim 2, characterized in that: The insertion rod (14) is inserted into the interior of the second ring disk (21), the interior of the second silicone ring (22), and the interior of the second card plate (23). The first connecting rod (15) is inserted into the interior of the second ring disk (21), and the second connecting rod (24) is inserted into the interior of the first ring disk (11).
5. A split-type distillation column for krypton-xenon refining according to claim 2, characterized in that: A rubber ring is inserted into a groove between the bottom of the first locking nut (17) and the second ring disc (21). A rubber ring is inserted into a groove between the top of the first locking nut (17) and the bottom of the first locking cover (18). A rubber ring is inserted into a groove between the top of the second locking nut (26) and the first ring disc (11). A rubber ring is inserted into a groove between the bottom of the second locking nut (26) and the top of the second locking cover (27).