Device for extracting high-purity oxygen in poor krypton-xenon rectification

Abstract

The utility model relates to the technical field of air separation equipment, in particular to a device for extracting high-purity oxygen in poor krypton-xenon rectification, which comprises a device main body, a reflux box, a condensation chamber and a sealing door, the reflux box is fixedly connected in a mounting groove of the device main body, the condensation chamber is fixedly connected on the upper side of the device main body, and the sealing door is arranged on the front side of the condensation chamber. According to the device, through the arrangement of the locking blocks, the locking sleeves, the bearing plates, the positioning plates, the adjusting blocks, the adjusting rods and the positioning seats, the sealing door can be quickly disassembled and assembled through the locking blocks and the locking sleeves, the position of the positioning seats is adjusted through the adjusting rods and the adjusting blocks, and therefore the sealing door can be quickly disassembled and assembled. The condensation pipe can be stably fixed on the inner side of the condensation chamber by clamping the condensation pipe through the positioning seat, the condensation pipe can be quickly taken down by releasing the clamping of the condensation pipe through the positioning seat, the device is convenient for overhauling or replacing the condensation pipe, and the operation is simpler and more convenient when a worker overhauls or replaces the condensation pipe.

Description

Technical Field

[0001] This utility model relates to the field of air separation equipment technology, specifically to a device for extracting high-purity oxygen through lean krypton xenon distillation. Background Technology

[0002] The working principle of lean krypton-xenon distillation is as follows: A portion of liquid oxygen is drawn from the bottom of the upper column of the air separation equipment distillation column as raw material (the krypton and xenon content dissolved in the liquid oxygen is usually only 30 to 40 parts per million). In the first krypton-xenon distillation column, the oxygen is separated by evaporation, and the remaining material forms lean krypton-xenon. Gaseous oxygen is discharged from the top of the column, and lean krypton-xenon is discharged from the bottom of the column. This process can concentrate krypton and xenon by nearly 100 times, but at the same time, methane and a small amount of acetylene are also concentrated. Lean krypton-xenon needs to undergo further processing to obtain high-purity krypton and high-purity xenon, respectively. Gaseous oxygen can be recovered and reprocessed by a high-purity oxygen extraction device to form high-purity oxygen.

[0003] The apparatus for extracting high-purity oxygen from lean krypton xenon distillation can convert the gaseous oxygen produced in lean krypton xenon distillation into high-purity liquid oxygen through the condensation principle. In some existing apparatuses for extracting high-purity oxygen from lean krypton xenon distillation, the condensation pipes are directly fixed inside the condensation tank, which is inconvenient for maintenance and replacement, and the operation is relatively cumbersome for the staff when performing maintenance or replacement. Therefore, in order to solve the above problems, an apparatus for extracting high-purity oxygen from lean krypton xenon distillation is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a device for extracting high-purity oxygen from lean krypton xenon distillation, in order to solve the problem that the condenser pipes of some existing devices for extracting high-purity oxygen from lean krypton xenon distillation are directly fixed inside the condenser tank, which is inconvenient for maintenance and replacement, and the operation is cumbersome for staff when performing maintenance or replacement.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A device for extracting high-purity oxygen through krypton-xenon distillation includes a main body, a reflux chamber, a condensation chamber, and a sealing door. The reflux chamber is fixedly connected to a mounting groove in the main body. The condensation chamber is fixedly connected to the upper side of the main body. A sealing door is located on the front side of the condensation chamber. Two locking blocks are located on both the left and right sides of the condensation chamber. Two locking sleeves are fixedly connected to both the left and right sides of the sealing door. The locking sleeves are fitted over the locking blocks. A mounting bracket is fixedly connected to the upper side of each locking sleeve. A hydraulic rod is fixedly connected to the inner side of each mounting bracket. The hydraulic rods are inserted into the locking sleeves and locking blocks. Three insertion blocks are fixedly connected to the rear side of the sealing door. A [missing information - likely a device name or component] is fixedly connected to the lower interior of the condensation chamber. A support plate is provided, with a positioning plate fixedly connected to its rear side. Two pairs of symmetrically distributed first limiting blocks are fixedly connected to the lower interior of the condensing chamber. Two pairs of symmetrically distributed second limiting blocks are fixedly connected to the upper interior of the condensing chamber. A dual-axis motor is fixedly connected to the upper interior of the condensing chamber. Adjusting rods are fixedly connected to the two main shafts of the dual-axis motor. Adjusting blocks are spirally connected to the outer sides of the adjusting rods. Each adjusting block is slidably connected to a pair of second limiting blocks. A positioning seat is fixedly connected to the lower side of each adjusting block. Each positioning seat is slidably connected to a pair of first limiting blocks. The positioning seat engages with the condensing pipe, which passes through a hole formed by the condensing chamber and the insertion block.

[0007] Preferably, the reflux box is provided with an inlet pipe on its upper side, a switch valve is provided on the upper side of the inlet pipe of the reflux box, and an outlet pipe is provided on the lower side of the condenser tube. The switch valve of the reflux box and the outlet pipe of the condenser tube are fixedly connected.

[0008] Preferably, the front half of the main body of the device is provided with an installation groove, the front half of the condensing chamber is provided with three insertion grooves, the insertion blocks are all located in the insertion grooves of the condensing chamber, the rear side of the insertion blocks are all curved surfaces, and a circular hole can be formed between the condensing chamber and the insertion blocks.

[0009] Preferably, the rear side of the sealing door is provided with a sealing rubber strip, each locking block is provided with a first locking hole, each locking sleeve is provided with two second locking holes, each mounting bracket is a "U" shaped bracket, and the lower end of each hydraulic rod is provided with a frustum-shaped positioning pin.

[0010] Preferably, both the support plate and the positioning plate are rubber plates, the support plate has receiving grooves on both the left and right sides, the support plate is in contact with a pair of first limiting blocks on both the left and right sides, and the front side of the positioning plate is in contact with the condenser pipe.

[0011] Preferably, the outer side of the adjusting rod is provided with threaded protrusions, the inner side of the adjusting block is provided with threaded slots, the inner sides of the two positioning seats are provided with multiple engaging slots, and the inner sides of the positioning seats are provided with rubber buffer layers.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] In this invention, the device, through the setting of locking block, locking sleeve, support plate, positioning plate, adjusting block, adjusting rod, and positioning seat, enables quick assembly and disassembly of the sealing door via the locking block and locking sleeve. The position of the positioning seat is adjusted by the adjusting rod and adjusting block. The condenser tube can be stably fixed inside the condensing chamber by the positioning seat engaging with it. The condenser tube can be quickly removed by releasing the positioning seat from engaging with it. This device facilitates the inspection or replacement of the condenser tube, and the operation is simple and convenient for staff to perform inspection or replacement. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the condenser tube installation structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the locking sleeve installation structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the reflux box installation structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the locking block installation structure of this utility model;

[0019] Figure 6 This is a cross-sectional view of the installation structure of the limiting block of this utility model;

[0020] Figure 7 This is a schematic diagram of the installation structure of the adjusting block of this utility model;

[0021] Figure 8 This is a schematic diagram of the positioning plate installation structure of this utility model;

[0022] Figure 9 This is a cross-sectional view of the hydraulic rod installation structure of this utility model;

[0023] Figure 10 This is a cross-sectional view of the installation structure of the adjusting rod of this utility model.

[0024] In the diagram: 1. Main body of the device; 2. Reflux box; 3. Condensation chamber; 4. Sealing door; 5. Locking block; 6. Locking sleeve; 7. Mounting bracket; 8. Hydraulic rod; 9. Insertion block; 10. Support plate; 11. Positioning plate; 12. First limit block; 13. Second limit block; 14. Dual-axis motor; 15. Adjusting rod; 16. Adjusting block; 17. Positioning seat; 18. Condensation pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0027] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0028] Please see Figure 1-10 This utility model provides a technical solution:

[0029] A device for extracting high-purity oxygen through krypton-xenon distillation includes a main body 1, a reflux chamber 2, a condensation chamber 3, and a sealing door 4. The reflux chamber 2 is fixedly connected to the mounting groove of the main body 1. The condensation chamber 3 is fixedly connected to the upper side of the main body 1. A sealing door 4 is provided on the front side of the condensation chamber 3. Two locking blocks 5 are provided on both the left and right sides of the condensation chamber 3. Two locking sleeves 6 are fixedly connected to both the left and right sides of the sealing door 4, and the locking sleeves 6 are fitted onto the outside of the locking blocks 5. A mounting bracket 7 is fixedly connected to the upper side of each locking sleeve 6. A hydraulic rod 8 is fixedly connected to the inner side of each mounting bracket 7, and the hydraulic rod 8 is inserted into the locking sleeve 6 and the locking block 5. Three insertion blocks 9 are fixedly connected to the rear side of the sealing door 4. A support plate 10 is fixedly connected to the lower interior of the condensation chamber 3. A positioning plate 11 is fixedly connected to the rear side of 10. Two pairs of first limiting blocks 12 are fixedly connected to the lower side of the interior of the condensing chamber 3. Two pairs of second limiting blocks 13 are fixedly connected to the upper side of the interior of the condensing chamber 3. A dual-axis motor 14 is fixedly connected to the upper side of the interior of the condensing chamber 3. Adjusting rods 15 are fixedly connected to the two main shafts of the dual-axis motor 14. Adjusting blocks 16 are spirally connected to the outer side of the adjusting rods 15. Each adjusting block 16 is slidably connected to a pair of second limiting blocks 13. A positioning seat 17 is fixedly connected to the lower side of the adjusting block 16. Each positioning seat 17 is slidably connected to a pair of first limiting blocks 12. The positioning seat 17 engages with the condensing tube 18. The condensing tube 18 passes through the hole formed by the condensing chamber 3 and the insertion block 9.

[0030] The reflux box 2 has an inlet pipe on its upper side, a switch valve on its upper side, and an outlet pipe on its lower side. The switch valve of the reflux box 2 and the outlet pipe of the condenser 18 are fixedly connected, allowing the reflux box 2 to collect liquid oxygen. The front half of the main body 1 has an installation groove, and the front half of the condenser chamber 3 has three insertion grooves. The insertion blocks 9 are all located in the insertion grooves of the condenser chamber 3. The rear sides of the insertion blocks 9 are all curved surfaces, and a circular hole can be formed between the condenser chamber 3 and the insertion blocks 9. The condenser chamber 3 and the insertion blocks 9 can engage the end of the condenser 18. The rear side of the sealing door 4 has a sealing rubber strip, the locking blocks 5 all have a first locking hole, and the locking sleeves 6 all have two second locking holes. The mounting bracket... All 7 are U-shaped frames, and the lower end of each hydraulic rod 8 is provided with a frustum-shaped positioning pin. The hydraulic rod 8 can lock the locking block 5 and the locking sleeve 6. The support plate 10 and the positioning plate 11 are both rubber plates. The left and right sides of the support plate 10 are provided with receiving grooves. The left and right sides of the support plate 10 are in contact with a pair of first limit blocks 12. The front side of the positioning plate 11 is in contact with the condenser pipe 18. The positioning plate 11 can position the condenser pipe 18. The outer side of each adjusting rod 15 is provided with threaded protrusions, and the inner side of each adjusting block 16 is provided with threaded slots. The relative inner sides of the two positioning seats 17 are provided with multiple engaging grooves, and the relative inner sides of each positioning seat 17 are provided with rubber buffer layers. The positioning seats 17 can engage and support the condenser pipe 18.

[0031] Workflow: Before use, fix the main body 1 of the device in a suitable position, connect the left end of the condenser 18 to the oxygen discharge pipe on the upper side of the distillation column, connect the right end of the condenser 18 to the gas detection device, and turn on the power. The main body 1, hydraulic rod 8, and dual-shaft motor 14 of this device are all electrical components. This device is equipped with an external controller. The operating status of the main body 1, hydraulic rod 8, and dual-shaft motor 14 can be adjusted by manually operating the external controller. The main body 1 of this device is an existing component and can perform refrigeration. All of the above are existing technologies. When using this device, first start the main body 1, and the oxygen discharge from the distillation column will be... Oxygen enters from the left end of condenser tube 18, spirals upward within condenser tube 18, and exits from the right end of condenser tube 18. The main body 1 of the device can provide refrigeration, keeping the interior of reflux chamber 2 and condenser chamber 3 at a low temperature. When oxygen passes through condenser tube 18, it condenses to form liquid oxygen. The liquid oxygen flows from the liquid outlet pipe on the lower side of condenser tube 18 through the liquid inlet pipe of reflux chamber 2 and enters reflux chamber 2. Exhaust gas is discharged through the right end of hydraulic rod 8. When condenser tube 18 of this device needs maintenance or replacement, the operator manually operates the external controller to first close the main body 1 of the device and then return the hydraulic rod 8, which is fixed by the mounting bracket 7, upward. By retracting the locking block 5 and locking sleeve 6, the worker can quickly remove the sealing door 4 from the condenser chamber 3. The insertion block 9 is removed along with the sealing door 4. Then, the dual-axis motor 14 is started, which drives the adjusting rod 15 to rotate, causing the adjusting block 16 to slide along the second limit block 13, making the two adjusting blocks 16 move away from each other. This, in turn, causes the two positioning seats 17 to slide along the first limit block 12, releasing the positioning seats 17 from the condenser tube 18. However, the positioning plate 11 will restrict the condenser tube 18, which can only move forward and not backward. The worker can quickly remove the upper part of the support plate 10. The condenser tube 18 is removed for inspection or replacement. After inspection or replacement, the condenser tube 18 can be quickly installed into the condensing chamber 3. The device can quickly install and remove the sealing door 4 through the locking block 5 and locking sleeve 6. The position of the positioning seat 17 can be adjusted by adjusting rod 15 and adjusting block 16. The condenser tube 18 can be stably fixed inside the condensing chamber 3 by the locking of the positioning seat 17. The condenser tube 18 can be quickly removed by releasing the locking of the positioning seat 17. The device facilitates the inspection or replacement of the condenser tube 18 and the operation is simple and convenient for the staff.

[0032] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0033] Although embodiments of the present invention 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for extracting high-purity oxygen by krypton-xenon distillation, comprising a main body (1), a reflux chamber (2), a condensation chamber (3), and a sealing door (4), characterized in that: A return box (2) is fixedly connected to the mounting groove of the main body (1) of the device. A condensing chamber (3) is fixedly connected to the upper side of the main body (1). A sealing door (4) is provided on the front side of the condensing chamber (3). Two locking blocks (5) are provided on both the left and right sides of the condensing chamber (3). Two locking sleeves (6) are fixedly connected to both the left and right sides of the sealing door (4). The locking sleeves (6) are all fitted on the outside of the locking blocks (5). A mounting bracket (7) is fixedly connected to the upper side of the locking sleeves (6). A hydraulic rod (8) is fixedly connected to the inner side of the mounting bracket (7). The hydraulic rod (8) is inserted into the locking sleeves (6) and the locking blocks (5). Three insertion blocks (9) are fixedly connected to the rear side of the sealing door (4). A support plate (10) is fixedly connected to the lower side of the interior of the condensing chamber (3). A positioning plate (11) is fixedly connected to the rear side of the support plate (10). The condensing chamber (3) has two pairs of first limiting blocks (12) symmetrically distributed on the left and right sides fixedly connected to the lower side of the interior. The condensing chamber (3) has two pairs of second limiting blocks (13) symmetrically distributed on the left and right sides fixedly connected to the upper side of the interior. The condensing chamber (3) has a dual-axis motor (14) fixedly connected to the upper side of the interior. The two main shafts of the dual-axis motor (14) are fixedly connected to adjusting rods (15). The outer side of the adjusting rods (15) is screwed with adjusting blocks (16). Each adjusting block (16) is slidably connected to a pair of second limiting blocks (13). The lower side of each adjusting block (16) is fixedly connected to a positioning seat (17). Each positioning seat (17) is slidably connected to a pair of first limiting blocks (12). The positioning seat (17) and the condensing tube (18) are engaged. The condensing tube (18) passes through the hole formed by the condensing chamber (3) and the insertion block (9).

2. The apparatus for extracting high-purity oxygen by krypton-xenon distillation according to claim 1, characterized in that: The reflux box (2) is provided with an inlet pipe on its upper side, and a switch valve is provided on the upper side of the inlet pipe of the reflux box (2). The condenser (18) is provided with an outlet pipe on its lower side. The switch valve of the reflux box (2) and the outlet pipe of the condenser (18) are fixedly connected.

3. The apparatus for extracting high-purity oxygen by krypton-lean xenon distillation according to claim 1, characterized in that: The front half of the main body (1) of the device is provided with an installation groove, and the front half of the condensing chamber (3) is provided with three insertion grooves. The insertion blocks (9) are all located in the insertion grooves of the condensing chamber (3). The rear side of the insertion blocks (9) is a curved surface. A circular hole can be formed between the condensing chamber (3) and the insertion blocks (9).

4. The apparatus for extracting high-purity oxygen by krypton-xenon distillation according to claim 1, characterized in that: The sealing door (4) is provided with a sealing rubber strip on the rear side, the locking block (5) is provided with a first locking hole, the locking sleeve (6) is provided with two second locking holes, the mounting bracket (7) is a "U" shaped bracket, and the lower end of the hydraulic rod (8) is provided with a frustum-shaped positioning pin.

5. The apparatus for extracting high-purity oxygen by krypton-xenon distillation according to claim 1, characterized in that: Both the support plate (10) and the positioning plate (11) are rubber plates. The support plate (10) has receiving grooves on both the left and right sides. Both the left and right sides of the support plate (10) are in contact with a pair of first limiting blocks (12). The front side of the positioning plate (11) is in contact with the condenser pipe (18).

6. The apparatus for extracting high-purity oxygen by krypton-xenon distillation according to claim 1, characterized in that: The outer side of the adjusting rod (15) is provided with threaded protrusions, the inner side of the adjusting block (16) is provided with threaded slots, the inner sides of the two positioning seats (17) are provided with multiple engaging slots, and the inner sides of the positioning seats (17) are provided with rubber buffer layers.

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