Xenon purification equipment
By setting up two xenon purification lines and vacuum chambers in the xenon purification equipment, the production stagnation and xenon loss caused by the failure of a single catalytic tower is solved, and efficient xenon purification and recovery are achieved.
Patent Information
- Application Number
- CN202422177179.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-05
AI Technical Summary
Due to the structure of a single catalytic tower, the existing xenon purification equipment is prone to stagnation in the entire production process due to failure, and cannot meet the needs of high-flow xenon purification, and the remaining xenon cannot be recovered, causing 20% of the product loss.
A xenon purification equipment is designed. By setting up two xenon purification lines, the two lines are connected head-to-tail, and can run both individually and simultaneously. When one of the lines fails, close the failed line valve, and the vacuum chamber will extract the remaining xenon and store it.
It improves the reliability of xenon purification, reduces the loss of xenon, reduces economic costs, and achieves efficient recycling of xenon.
Smart Images
Figure CN223010077U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of xenon purification, in particular to a xenon purification device. Background Art
[0002] Xenon is commonly known as the "gold gas" due to its low content and high price. During the purification process, the loss of xenon will be caused due to the process design, and at the same time, the diffusion of air and the leakage of xenon will also be caused by process factors. Currently, the same type of equipment has a single catalytic tower structure. Once a failure occurs, the purification device will stop operating, and the extraction work of xenon purification cannot be carried out, resulting in a large number of unqualified xenon products, causing the entire production process to stagnate. Moreover, a certain product loss rate of 20%m 3 / year.
[0003] Currently, the xenon purification equipment on the market can only be equipped with one catalytic tower. Once a failure occurs, the entire production process will stagnate, and xenon leakage will occur during maintenance or replacement, causing a significant economic loss. There is a problem that a single catalytic tower cannot meet the demand for large-flow xenon purification, and at the same time, the remaining xenon cannot be recovered. Therefore, it does not meet the existing requirements, and a xenon purification device is proposed for this. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a xenon purification device. By setting two xenon purification lines, the two xenon purification lines are connected head to tail. The two xenon purification lines can operate independently or simultaneously. When one of the lines fails, the valve of the faulty line is closed, and the vacuum chamber will extract and store the remaining xenon, reducing the loss of xenon, and the problems in the prior art can be solved.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A xenon purification device includes a first catalytic tower and also includes a second catalytic tower. The first catalytic tower is located in the first xenon purification line, and the second catalytic tower is located in the second xenon purification line. Along the xenon transportation direction, the first xenon purification line includes a first valve, a third valve, the first catalytic tower, a fourth valve, a first filter, a fifth valve, and a third pressure gauge. The second xenon purification line includes an eighth valve, a tenth valve, the second catalytic tower, an eleventh valve, a second filter, a thirteenth valve, and a third pressure gauge. A vacuum chamber and a programmable controller are arranged between the first catalytic tower and the second catalytic tower.
[0006] Preferably, a first pressure gauge is arranged on one side of the first catalytic tower, and the electropolished pipe connecting the third valve and the first catalytic tower is connected to the first pressure gauge. A fourth pressure gauge is arranged on one side of the second catalytic tower, and the electropolished pipe connecting the tenth valve and the second catalytic tower is connected to the fourth pressure gauge.
[0007] Preferably, an impurity sensor and a fifth pressure gauge are provided on one side of the fifth valve. Both the impurity sensor and the fifth pressure gauge are connected to the electro-polished pipe connecting the fifth valve and the thirteenth valve.
[0008] Preferably, both ends of the first xenon purification line and both ends of the second xenon purification line are connected by an electro-polished pipe. The first xenon purification line is connected to the vacuum chamber by an electro-polished pipe, and the second xenon purification line is connected to the vacuum chamber by an electro-polished pipe. Both the first catalytic tower and the second catalytic tower are connected to the programmable controller.
[0009] Preferably, a sixth valve is provided on one side of the vacuum chamber, and a second pressure gauge is provided on the other side of the vacuum chamber. Both the sixth valve and the second pressure gauge are connected to the vacuum chamber by an electro-polished pipe. A second valve and a seventh valve are respectively provided at both ends of the electro-polished pipe connecting the first xenon purification line and the vacuum chamber, and a ninth valve and a twelfth valve are respectively provided at both ends of the electro-polished pipe connecting the second xenon purification line and the vacuum chamber.
[0010] Preferably, the second valve is located between the first valve and the third valve, the seventh valve is located between the fourth valve and the first filter, the ninth valve is located between the eighth valve and the tenth valve, and the twelfth valve is located between the eleventh valve and the second filter.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0012] 1. By providing two xenon purification lines in the present utility model, the two xenon purification lines are connected end to end. The programmable controller controls the two xenon purification lines to run separately or simultaneously. In the single-run mode, when the impurity sensor detects that the xenon impurity content in the running line exceeds the standard, or the pressure difference between the pressure gauges is greater than 50 Kpa, the programmable controller automatically stops the line with excessive impurities and controls it to run on the other line. Compared with the traditional method of using a single catalytic converter to purify xenon, the reliability of xenon purification is improved, and the loss of xenon is reduced.
[0013] 2. By connecting the vacuum chamber to the two xenon purification lines in the present utility model, when one of the xenon purification lines fails, the valve of the faulty line is closed and the vacuum pump is started, so that the xenon remaining in the faulty line is pumped out and stored inside the vacuum chamber, reducing the loss of xenon and lowering the economic cost of purifying xenon. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the connection of the vacuum chamber of the present utility model;
[0015] Figure 2 It is a schematic diagram of the connection of the programmable controller of the present utility model;
[0016] Figure 3 Schematic diagram of the electrical signal connection of the programmable logic controller of the present utility model.
[0017] In the figure: 1. First valve; 2. Second valve; 3. Third valve; 4. First pressure gauge; 5. First catalytic tower; 6. Fourth valve; 7. First filter; 8. Fifth valve; 9. Sixth valve; 10. Second pressure gauge; 11. Seventh valve; 12. Third pressure gauge; 13. Vacuum chamber; 14. Eighth valve; 15. Ninth valve; 16. Tenth valve; 17. Fourth pressure gauge; 18. Second catalytic tower; 19. Eleventh valve; 20. Twelfth valve; 21. Second filter; 22. Thirteenth valve; 23. Programmable logic controller; 24. Impurity inductor; 25. Fifth pressure gauge. Specific embodiments
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0019] In order to solve the problem that a single catalytic tower cannot meet the demand for large-flow xenon purification and the residual xenon cannot be recycled, please refer to Figures 1-3 , an embodiment provided by the present utility model: a xenon purification device, including a first catalytic tower 5, further including a second catalytic tower 18. The first catalytic tower 5 is located in the first xenon purification line, and the second catalytic tower 18 is located in the second xenon purification line. Along the xenon transportation direction, the first xenon purification line includes a first valve 1, a third valve 3, a first catalytic tower 5, a fourth valve 6, a first filter 7, a fifth valve 8, and a third pressure gauge 12. The second xenon purification line includes an eighth valve 14, a tenth valve 16, a second catalytic tower 18, an eleventh valve 19, a second filter 21, a thirteenth valve 22, and a third pressure gauge 12. A vacuum chamber 13 and a programmable logic controller 23 are provided between the first catalytic tower 5 and the second catalytic tower 18. The first filter 7 and the second filter 21 can filter out CO, H2O, metal, and non-metal particulate matters in the xenon.
[0020] A first pressure gauge 4 is provided on one side of the first catalytic tower 5. The electropolished pipe connecting the third valve 3 and the first catalytic tower 5 is connected to the first pressure gauge 4. A fourth pressure gauge 17 is provided on one side of the second catalytic tower 18. The electropolished pipe connecting the tenth valve 16 and the second catalytic tower 18 is connected to the fourth pressure gauge 17. An impurity sensor 24 and a fifth pressure gauge 25 are provided on one side of the fifth valve 8. Both the impurity sensor 24 and the fifth pressure gauge 25 are connected to the electropolished pipe connecting the fifth valve 8 and the thirteenth valve 22. The two ends of the first xenon purification line and the two ends of the second xenon purification line are connected by an electropolished pipe. The first xenon purification line is connected to the vacuum chamber 13 by an electropolished pipe. The second xenon purification line is connected to the vacuum chamber 13 by an electropolished pipe. Both the first catalytic tower 5 and the second catalytic tower 18 are connected to the programmable controller 23.
[0021] The programmable controller 23 controls the first xenon purification line and the second xenon purification line to run separately or simultaneously. For example, when running the first xenon purification line alone, opening the first valve 1, the third valve 3, the fourth valve 6 and the fifth valve 8 can start normal operation. Among them, when the internal temperature of the first catalytic tower 5 rises to the set temperature, the programmable controller 23 controls the third valve 3 and the fourth valve 6 to open automatically, and the first valve 1 and the fifth valve 8 to open manually.
[0022] When the impurity sensor 24 detects that the xenon impurity content in the operating line exceeds the standard by 1 ppm, or the pressure difference between the first pressure gauge 4 and the fifth pressure gauge 25 is greater than 50 Kpa, the device alarms. The internal relay of the analyzer closes and forms a loop with the programmable controller 23. After the programmable controller 23 recognizes the external signal input, it selects to run according to the set program. The programmable controller 23 outputs a signal and completes the switching between the first catalytic tower 5 and the second catalytic tower 18 through the execution unit. When the programmable controller 23 is put into operation, its working process is generally divided into three stages, namely the input sampling, the user program execution and the output refresh stages. Completing the above three stages is called a scan cycle. During the whole operation period, the CPU of the programmable controller 23 repeats the above three stages at a scan speed of 0.37 milliseconds.
[0023] When a failure occurs in the first xenon purification line or the second xenon purification line, select the single operation mode on the programmable logic controller 23 to enable the fault-free line to operate normally, and at the same time close the valves of the faulty line. For example, when a failure occurs in the first xenon purification line, select the single operation mode of the second xenon purification line on the programmable logic controller 23, and at the same time close the first valve 1 and the fifth valve 8, so that the fault point can be processed. After the fault point is solved, reopen the first valve 1 and the fifth valve 8, and select the dual-channel switching mode on the programmable logic controller 23. Compared with the traditional method of using a single catalytic converter to purify xenon, the reliability during xenon purification is improved, the loss of xenon is reduced, and the xenon purification efficiency is further increased.
[0024] A sixth valve 9 is provided on one side of the vacuum chamber 13, and a second pressure gauge 10 is provided on the other side of the vacuum chamber 13. Both the sixth valve 9 and the second pressure gauge 10 are connected to the vacuum chamber 13 through electropolished pipes. Second valves 2 and seventh valves 11 are respectively provided at both ends of the electropolished pipe connecting the first xenon purification line and the vacuum chamber 13. Ninth valves 15 and twelfth valves 20 are respectively provided at both ends of the electropolished pipe connecting the second xenon purification line and the vacuum chamber 13. The second valve 2 is located between the first valve 1 and the third valve 3, the seventh valve 11 is located between the fourth valve 6 and the first filter 7, the ninth valve 15 is located between the eighth valve 14 and the tenth valve 16, and the twelfth valve 20 is located between the eleventh valve 19 and the second filter 21.
[0025] The first xenon purification line and the second xenon purification line are symmetrically structured on the left and right, with one in use and one in reserve. When the first catalytic tower 5 in the first xenon purification line fails, first heat the vacuum chamber 13 and open the sixth valve 9 to evacuate the inside of the vacuum chamber 13 to negative pressure through a vacuum pump, then close the fifth valve 8 and the sixth valve 9, and open the seventh valve 11 to suck the xenon in the first catalytic tower 5 and the nearby pipelines into the vacuum chamber 13 for storage. Finally, close the fourth valve 6 and the seventh valve 11 and switch to the second catalytic tower 18, so that even if the first catalytic tower 5 completely fails, the second catalytic tower 18 also has the ability to operate independently, avoiding affecting the user's production plan due to the failure of a single catalytic tower, reducing the loss of xenon, and further reducing the economic cost of purifying xenon.
[0026] Working principle: By setting two xenon purification lines, the two xenon purification lines are connected end to end. The two xenon purification lines can operate independently or simultaneously. When one of the lines fails, the operator closes the manual valve of the faulty line, and the programmable logic controller 23 closes the automatic valve of the faulty line. The vacuum chamber 13 extracts and stores the residual xenon, reducing the loss of xenon and improving the xenon purification efficiency.
[0027] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.
[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A xenon gas purification device, comprising a first catalytic tower (5), characterized in that: The invention also comprises a second catalytic tower (18), wherein the first catalytic tower (5) is located in a first xenon gas purification line, and the second catalytic tower (18) is located in a second xenon gas purification line. Along the xenon gas transport direction, the first xenon gas purification line comprises a first valve (1), a third valve (3), a first catalytic tower (5), a fourth valve (6), a first filter (7), a fifth valve (8) and a third pressure gauge (12), and the second xenon gas purification line comprises an eighth valve (14), a tenth valve (16), a second catalytic tower (18), an eleventh valve (19), a second filter (21), a thirteenth valve (22) and a third pressure gauge (12), and a vacuum chamber (13) and a programmable controller (23) are arranged between the first catalytic tower (5) and the second catalytic tower (18).
2. A xenon gas purification device according to claim 1, characterized in that: A first pressure gauge (4) is provided on one side of the first catalytic tower (5), and an electrochemical polishing tube connecting the third valve (3) and the first catalytic tower (5) is connected to the first pressure gauge (4); a fourth pressure gauge (17) is provided on one side of the second catalytic tower (18), and an electrochemical polishing tube connecting the tenth valve (16) and the second catalytic tower (18) is connected to the fourth pressure gauge (17).
3. The xenon gas purification device according to claim 1, characterized in that: An impurity sensor (24) and a fifth pressure gauge (25) are provided on one side of the fifth valve (8), and the impurity sensor (24) and the fifth pressure gauge (25) are both connected to the electro-polishing pipe connecting the fifth valve (8) and the thirteenth valve (22).
4. The xenon gas purification device according to claim 1, characterized in that: The two ends of the first xenon gas purification line and the two ends of the second xenon gas purification line are connected via electrochemical polishing tubes, the first xenon gas purification line is connected to the vacuum chamber (13) via the electrochemical polishing tube, the second xenon gas purification line is connected to the vacuum chamber (13) via the electrochemical polishing tube, and the first catalytic tower (5) and the second catalytic tower (18) are both connected to a programmable controller (23).
5. A xenon gas purification device according to claim 4, characterized in that: A sixth valve (9) is provided on one side of the vacuum chamber (13), and a second pressure gauge (10) is provided on the other side of the vacuum chamber (13); the sixth valve (9) and the second pressure gauge (10) are both connected to the vacuum chamber (13) through an electrochemical polishing tube; a second valve (2) and a seventh valve (11) are provided at both ends of the electrochemical polishing tube connecting the first xenon gas purification line and the vacuum chamber (13); and a ninth valve (15) and a twelfth valve (20) are provided at both ends of the electrochemical polishing tube connecting the second xenon gas purification line and the vacuum chamber (13).
6. A xenon gas purification device according to claim 5, characterized in that: The second valve (2) is located between the first valve (1) and the third valve (3), the seventh valve (11) is located between the fourth valve (6) and the first filter (7), the ninth valve (15) is located between the eighth valve (14) and the tenth valve (16), and the twelfth valve (20) is located between the eleventh valve (19) and the second filter (21).