Sublimation instrument with anti-explosion protection device
By tilting the quartz tube in the sublimator and equipped with explosion-proof protection devices, the rupture and explosion problems caused by thermal stress and thermal expansion and contraction of quartz tubes are solved, and a safe and reliable sublimation operation is achieved.
Patent Information
- Application Number
- CN202422922560.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-11-28
AI Technical Summary
In the sublimator, the cracking and explosion caused by thermal stress and thermal expansion and contraction of quartz tubes poses safety hazards, especially in high-temperature environments, which is even more serious when the clamping device is incorrect.
The quartz tube is set at an incline of 45 degrees and is equipped with explosion-proof and anti-impact protection device, including a filter, a gas pipe, an explosion-proof throttle valve and an activated carbon plate. The impurities are filtered and the air flow is adjusted to reduce the pressure in the quartz tube. At the same time, the use of a movable plate and a buffer spring in the clamping structure allows thermal expansion and contraction.
Effectively prevent explosions, improve heating efficiency and heat transfer effect, enhance equipment adaptability, reduce the risk of cracking caused by excessive clamping, and ensure safety.
Smart Images
Figure CN223127298U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sublimation instruments, in particular to a sublimation instrument with an explosion-proof protection device. Background Art
[0002] Sublimator is a kind of equipment widely used in scientific research, industry and laboratory fields, mainly used for the sublimation and purification process of substances. One of its core components is the heating tube, which is usually made of quartz glass. Quartz glass, as a high-purity silica glass, is widely used due to its unique physical and chemical properties. Specifically, it exhibits a high degree of chemical stability and can resist the erosion of most chemical substances; at the same time, it has excellent thermal stability and can maintain structural stability in high temperature environments, and is not easy to deform or melt.
[0003] However, despite the many advantages of quartz glass mentioned above, there are still some problems that cannot be ignored in the actual application of sublimators. Especially in high-temperature working environments, a significant temperature gradient will be generated inside and outside the quartz tube. Especially during the operation of the tube furnace, due to the large and rapid temperature changes, this temperature gradient will be further aggravated, resulting in a large thermal stress inside the quartz tube. When this thermal stress exceeds the tolerance limit of the quartz glass, it will cause the tube wall to rupture; at the same time, when the quartz tube is affected by thermal expansion and contraction, its size changes are particularly significant. If the clamping device outside the quartz tube does not reserve enough space for thermal expansion and contraction, or the clamping force is too tight, it will limit the free expansion and contraction of the quartz tube. In this case, once the stress generated by thermal expansion and contraction reaches the limit, the quartz tube will rupture because it cannot withstand it. This rupture will not only cause the sublimator to fail to work properly, but may also cause an explosion phenomenon, posing a serious threat to the safety of operators and equipment.
[0004] Therefore, the present application proposes a sublimator with an explosion-proof protection device to solve the above problems. Utility Model Content
[0005] The utility model aims to provide a sublimator with an explosion-proof protection device, which solves the technical problems raised in the background technology.
[0006] To achieve the above object, the present utility model provides the following technical solutions: A sublimator with an explosion-proof impact protection device, including a support plate, on the upper surface of which are fixedly connected with vertical rods on both the left and right sides. Above the support plate is provided a heating device, which is located between the two vertical rods. Above the heating device is provided a quartz tube, which is inclined at an angle of 45 degrees with the horizontal direction. The upper port of the quartz tube is provided with a sealing plug. Outside the quartz tube is provided an air duct, the lower end of which penetrates through the sealing plug and extends into the quartz tube. The other end of the air duct is connected with a filter outer frame, inside which is provided an activated carbon plate. An explosion-proof impact throttle valve is provided on the air duct.
[0007] Preferably, a filter is provided inside the quartz tube, which is used to preliminarily filter particulate impurities in the gas generated by sublimation.
[0008] Preferably, a sliding ring is sleeved on the vertical rod, and a first locking bolt is provided on the outside of the sliding ring. The end of the first locking bolt close to the vertical rod penetrates through the side wall of the sliding ring and abuts against the side wall of the vertical rod. On the adjacent sides of the two sliding rings are fixedly connected with support rods, and on the adjacent ends of the left and right support rods are respectively fixedly connected with a first fixing frame and a second fixing frame.
[0009] Preferably, the filter outer frame is located inside the second fixing frame, and a second locking bolt is provided on the outside of the second fixing frame. The end of the second locking bolt close to the second fixing frame penetrates through the side wall of the second fixing frame and abuts against the outer side wall of the filter outer frame. The second locking bolt is threadedly connected with the side wall of the second fixing frame.
[0010] Preferably, the quartz tube is located inside the first fixing frame, and a first movable plate and a second movable plate are provided inside the first fixing frame. The left and right ends of the first movable plate and the second movable plate are respectively slidably connected with the left and right inner walls of the first fixing frame. On the adjacent side walls of the first movable plate and the second movable plate are provided limiting grooves, which are adapted to the outer side wall of the quartz tube.
[0011] Preferably, a third locking bolt is provided on the front side of the first fixing frame. The rear end of the third locking bolt penetrates through the front side wall of the first fixing frame and is rotatably connected with the front end of the second movable plate. The third locking bolt is threadedly connected with the front side wall of the first fixing frame. The rear end of the first movable plate is fixedly connected with a plurality of buffer springs, and the rear ends of the buffer springs are fixedly connected with the rear inner wall of the first fixing frame.
[0012] Compared with the related art, a sublimator with an explosion-proof impact protection device provided by the present utility model has the following beneficial effects:
[0013] 1. The utility model provides a sublimator with an anti-explosion and impact protection device. In this device, the quartz tube is arranged at an inclination of 45 degrees, which improves the heating efficiency, optimizes the heat transfer effect, enhances the adaptability and flexibility of the equipment, and is more conducive to preventing the occurrence of explosion and impact. At the same time, in order to more effectively avoid and handle explosion and impact, a set of anti-explosion and impact protection device is added here, which mainly consists of a filter inside the quartz tube, a gas guide pipe, an anti-explosion and impact throttle valve, a filter outer frame and an activated carbon plate. When in use, the filter is used to initially filter the particulate impurities in the gas generated by sublimation. At the same time, the gas generated by sublimation enters the activated carbon plate through the gas guide pipe, and the anti-explosion and impact throttle valve on the gas guide pipe is used to adjust the gas flow rate, so as to achieve the purpose of reducing the pressure inside the quartz tube, and then realizing anti-explosion and impact.
[0014] 2. The utility model provides a sublimator with an anti-explosion and impact protection device. In the quartz tube clamping structure, it mainly cooperates with the first movable plate and the second movable plate, and the limit groove is adapted to the outer wall of the quartz tube. Under the action of the buffer spring, it not only provides a stable support, but also allows a certain amount of movement space during thermal expansion and contraction, reducing the risk of rupture caused by over-tight clamping. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;
[0016] Figure 2 is a three-dimensional sectional structural schematic diagram of the quartz tube of the present utility model;
[0017] Figure 3 is a structural schematic diagram of the positional relationship between the first fixing frame and the quartz tube of the present utility model;
[0018] Figure 4 is a three-dimensional structural schematic diagram of the first fixing frame of the present utility model.
[0019] In the figure: 1, support plate; 2, heating device; 3, vertical rod; 4, sliding ring; 5, first locking bolt; 6, support rod; 7, first fixing frame; 8, second fixing frame; 9, second locking bolt; 10, quartz tube; 11, filter; 12, sealing plug; 13, gas guide pipe; 14, anti-explosion and impact throttle valve; 15, filter outer frame; 16, activated carbon plate; 17, third locking bolt; 18, first movable plate; 19, second movable plate; 20, buffer spring; 21, limit groove. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0021] Please refer to Figures 1-4 , the present invention provides a technical solution: a sublimator with an explosion-proof impact protection device, including a support plate 1. On the upper surface of the support plate 1, vertical rods 3 are fixedly connected to both the left and right sides. Above the support plate 1, a heating device 2 is provided. The heating device 2 is located between the two vertical rods 3. Above the heating device 2, a quartz tube 10 is provided. The quartz tube 10 is inclined at 45 degrees to the horizontal direction. The 45-degree setting improves the heating efficiency, optimizes the heat transfer effect, enhances the adaptability and flexibility of the device, and is more conducive to preventing the occurrence of explosion and impact. A sealing plug 12 is provided at the upper port of the quartz tube 10. An air guide tube 13 is provided outside the quartz tube 10. The lower end of the air guide tube 13 penetrates through the sealing plug 12 and extends into the quartz tube 10. The other end of the air guide tube 13 is connected to a filter outer frame 15. An activated carbon plate 16 is provided inside the filter outer frame 15. An explosion-proof impact throttle valve 14 is provided on the air guide tube 13. A filter 11 is provided inside the quartz tube 10. The filter 11 is used to initially filter the particulate impurities in the gas generated by sublimation. The gas generated by sublimation enters the activated carbon plate 16 through the air guide tube 13. The air flow rate is adjusted by the explosion-proof impact throttle valve 14 on the air guide tube 13, so as to achieve the purpose of reducing the pressure inside the quartz tube 10, and thus realizing explosion-proof impact.
[0022] A sliding ring 4 is sleeved on the vertical rod 3. A first locking bolt 5 is provided outside the sliding ring 4. One end of the first locking bolt 5 close to the vertical rod 3 penetrates through the side wall of the sliding ring 4 and abuts against the side wall of the vertical rod 3. On the adjacent side of the two sliding rings 4, support rods 6 are fixedly connected. The adjacent ends of the left and right support rods 6 are respectively fixedly connected to a first fixed frame 7 and a second fixed frame 8. The filter outer frame 15 is located inside the second fixed frame 8. A second locking bolt 9 is provided outside the second fixed frame 8. One end of the second locking bolt 9 close to the second fixed frame 8 penetrates through the side wall of the second fixed frame 8 and abuts against the outer side wall of the filter outer frame 15. The second locking bolt 9 is threadedly connected to the side wall of the second fixed frame 8. By loosening the first locking bolt 5, the sliding ring 4 can be dragged to slide up and down on the vertical rod 3, and thus it is convenient to adjust the position of the quartz tube 10.
[0023] The quartz tube 10 is located inside the first fixing frame 7. Inside the first fixing frame 7, a first movable plate 18 and a second movable plate 19 are arranged. The left and right ends of the first movable plate 18 and the second movable plate 19 are respectively slidably connected to the left and right inner side walls of the first fixing frame 7. Limiting grooves 21 are formed on the adjacent side walls of the first movable plate 18 and the second movable plate 19. The limiting grooves 21 are adapted to the outer side wall of the quartz tube 10. A third locking bolt 17 is arranged on the front side of the first fixing frame 7. The rear end of the third locking bolt 17 penetrates through the front side wall of the first fixing frame 7 and is rotatably connected to the front end of the second movable plate 19. The third locking bolt 17 is threadedly connected to the front side wall of the first fixing frame 7. A plurality of buffer springs 20 are fixedly connected to the rear end of the first movable plate 18. The rear ends of the buffer springs 20 are fixedly connected to the rear inner wall of the first fixing frame 7. The limiting grooves 21 are adapted to the outer side wall of the quartz tube 10. Under the action of the buffer springs 20, it provides a stable support and at the same time allows a certain amount of movement space during thermal expansion and contraction, reducing the risk of rupture caused by over-tight clamping.
[0024] Working principle: When in use, a sublimation experimental substance is placed into the quartz tube 10, and a filter 11 is filled into the quartz tube 10 and sealed with a sealing plug 12. The first locking bolt 5 is loosened, the position of the sliding ring 4 is adjusted and then the first locking bolt 5 is tightened. The quartz tube 10 is inserted between the first movable plate 18 and the second movable plate 19 inside the first fixing frame 7. The third locking bolt 17 is rotated to drive the second movable plate 19 to move closer to the first movable plate 18, and then the quartz tube 10 is fixedly clamped by the first movable plate 18 and the second movable plate 19. One end of the gas guide pipe 13 is inserted into the quartz tube 10 through the sealing plug 12, and the other end of the gas guide pipe 13 extends to the position of the activated carbon plate 16. At the same time, the filter outer frame 15 outside the activated carbon plate 16 is located inside the second fixing frame 8 and its position is fixed by the second locking bolt 9. After the equipment is assembled, the substance inside the quartz tube 10 is heated by the heating device 2. As the temperature of the substance inside the quartz tube 10 rises, a sublimation reaction occurs. In the device, the quartz tube 10 is arranged at an angle of 45 degrees, which improves the heating efficiency, optimizes the heat transfer effect, enhances the adaptability and flexibility of the equipment, is more conducive to preventing explosion and impact. At the same time, the filter 11 is used to preliminarily filter the particulate impurities in the gas generated by sublimation. At the same time, the gas generated by sublimation enters the activated carbon plate 16 through the gas guide pipe 13, and the explosion-proof throttle valve 14 on the gas guide pipe 13 is used to adjust the gas flow rate, so as to achieve the purpose of reducing the pressure inside the quartz tube 10 and further realizing explosion-proof and anti-impact. In the clamping structure of the quartz tube 10, mainly through the cooperation of the first movable plate 18 and the second movable plate 19, the limiting grooves 21 are adapted to the outer side wall of the quartz tube 10. Under the action of the buffer springs 20, it provides a stable support and at the same time allows a certain amount of movement space during thermal expansion and contraction, reducing the risk of rupture caused by over-tight clamping.
Claims
1. A sublimator with an anti - explosion - impact protection device, including a support plate (1), characterized in that: On both the left and right sides of the upper surface of the support plate (1), vertical rods (3) are fixedly connected. Above the support plate (1), a heating device (2) is provided. The heating device (2) is located between the two vertical rods (3). Above the heating device (2), a quartz tube (10) is provided. The quartz tube (10) is inclined at an angle of 45 degrees with the horizontal direction. A sealing plug (12) is provided at the upper port of the quartz tube (10). An air duct (13) is provided outside the quartz tube (10). The lower end of the air duct (13) penetrates through the sealing plug (12) and extends into the quartz tube (10). The other end of the air duct (13) is connected to a filter outer frame (15). An activated carbon plate (16) is provided inside the filter outer frame (15). An explosion-proof throttling valve (14) is provided on the air duct (13).
2. The sublimator with an explosion-proof impact protection device according to claim 1, wherein: A filter (11) is provided inside the quartz tube (10). The filter (11) is used to preliminarily filter the particulate impurities in the gas generated by sublimation.
3. The sublimator with an explosion-proof impact protection device according to claim 1, characterized in that: A sliding ring (4) is sleeved on the vertical rod (3). A first locking bolt (5) is provided outside the sliding ring (4). One end of the first locking bolt (5) close to the vertical rod (3) penetrates through the side wall of the sliding ring (4) and abuts against the side wall of the vertical rod (3). On the adjacent sides of the two sliding rings (4), support rods (6) are fixedly connected. The adjacent ends of the left and right support rods (6) are respectively fixedly connected with a first fixing frame (7) and a second fixing frame (8).
4. The sublimator with an explosion-proof impact protection device according to claim 3, characterized in that: The filter outer frame (15) is located inside the second fixing frame (8). A second locking bolt (9) is provided outside the second fixing frame (8). One end of the second locking bolt (9) close to the second fixing frame (8) penetrates through the side wall of the second fixing frame (8) and abuts against the outer side wall of the filter outer frame (15). The second locking bolt (9) is threadedly connected to the side wall of the second fixing frame (8).
5. The sublimator with an anti - explosion - impact protection device according to claim 3, characterized in that: The quartz tube (10) is located inside the first fixing frame (7). A first movable plate (18) and a second movable plate (19) are provided inside the first fixing frame (7). The left and right ends of the first movable plate (18) and the second movable plate (19) are respectively slidably connected to the left and right inner walls of the first fixing frame (7). Limiting grooves (21) are provided on the adjacent side walls of the first movable plate (18) and the second movable plate (19). The limiting grooves (21) are adapted to the outer side wall of the quartz tube (10).
6. The sublimator with an explosion-proof impact protection device according to claim 5, characterized in that: A third locking bolt (17) is provided on the front side of the first fixing frame (7). The rear end of the third locking bolt (17) penetrates through the front side wall of the first fixing frame (7) and is rotatably connected to the front end of the second movable plate (19). The third locking bolt (17) is threadedly connected to the front side wall of the first fixing frame (7). A plurality of buffer springs (20) are fixedly connected to the rear end of the first movable plate (18). The rear ends of the buffer springs (20) are fixedly connected to the rear inner wall of the first fixing frame (7).