Anti-blocking structure for vacuum air hole in PET reaction kettle
By designing the air holes outer and inner tube components at the vacuum air holes of the PET reactor, combining rubber blocks and sliding seals, the problem of easy blockage of the vacuum air holes is solved, and a convenient clearing and stable vacuum environment is achieved.
Patent Information
- Application Number
- CN202422439324.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-09
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-10-09
AI Technical Summary
The vacuum air holes of existing PET reactors are prone to blockage of particulate matter, resulting in failure of exhaust gas and unable to maintain a vacuum environment.
An anti-blocking structure including an air hole outer tube and an inner tube assembly is designed. The inner tube assembly consists of an inner tube body, a circular plate and a rubber block. It prevents blockage through sliding and sealing mechanisms, and is equipped with a air hole cover for easy clearance.
Effectively prevent air holes from being blocked, provide a convenient method of cleaning and blocking, and ensure the stability of the vacuum environment in the reactor and the efficiency of the pumping.
Smart Images
Figure CN223144700U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of PET reactors, and specifically relates to an anti-blocking structure for the vacuum pores in a PET reactor. Background Technique
[0002] A PET reactor is used to create a high-temperature reaction and a vacuum environment. The vacuum environment helps to remove the tiny molecular substances generated during the reaction and promote the progress of the reaction. The creation of the vacuum environment requires the use of a complete vacuum pore for exhaust.
[0003] In the prior art, for the existing vacuum pores, a sealing device is used to seal them to prevent air from entering, and then an air extraction device is used to extract the gas. At this time, the inside of the reactor will be close to a vacuum environment.
[0004] However, since the vacuum pores of the reactor are arranged at the boundary between the vacuum and the air, the vast majority of particulate matters can enter, which is very likely to cause the vacuum pores to be blocked. When pumping air next time, it cannot be used due to the blockage of the pores. Content of the Utility Model
[0005] The purpose of the utility model is to provide an anti-blocking structure for the vacuum pores in a PET reactor to solve the problems put forward in the above background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solution: An anti-blocking structure for the vacuum pores in a PET reactor, comprising: a reactor, multiple legs are arranged at the bottom of the reactor, an air inlet pipe is arranged on one side of the reactor, a cover plate is installed on the top of the reactor, a pore assembly is arranged on the cover plate, the pore assembly includes an outer pore pipe and an inner pipe assembly, the outer pore pipe penetrates through the cover plate and extends into the reactor and is fixedly connected thereto, a first through hole is opened inside the outer pore pipe, and an annular groove is opened on the side wall of the first through hole.
[0007] Preferably, an inner pipe assembly is arranged in the first through hole and the annular groove. The inner pipe assembly includes an inner pipe body, a circular plate and a rubber block. The inner pipe body extends into the first through hole and is slidably connected thereto. The circular plate is fixedly installed on the lower surface of the inner pipe body. The circular plate is arranged in the annular groove and is slidably connected thereto. The rubber block is fixedly installed at the bottom of the circular plate.
[0008] Preferably, a plurality of second fixing columns are fixedly installed on the upper surface of the circular plate, and the second fixing columns are evenly arranged with the inner pipe body as the center.
[0009] Preferably, a second through hole is provided between every two adjacent second fixing columns, and a plurality of first fixing columns are evenly arranged at the bottom of the annular groove. The plurality of first fixing columns respectively extend into the plurality of second through holes and are slidably connected thereto.
[0010] Preferably, a cylindrical groove is provided inside the inner tube assembly. The cylindrical groove penetrates the inner tube body, and a plurality of third through holes are evenly provided on the side wall of the bottom of the cylindrical groove. The third through holes penetrate the side wall of the cylindrical groove.
[0011] Preferably, an air hole cover is provided above the inner tube assembly. The air hole cover includes a cap and a plug. The plug extends into the cylindrical groove and is slidably connected thereto.
[0012] Preferably, an air hole groove is provided at the top of the air hole outer tube. When air extraction is required, an annular block is clamped in the air hole groove. The top of the annular block is fixedly connected to a connecting tube, and threads are provided on both the inner wall and the outer wall of the connecting tube.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] The inner tube body is fixedly installed on the upper surface of the circular plate, and the rubber block is installed on the lower surface of the circular plate in the present utility model. Effectively, when blockage occurs in the first through hole at the bottom of the annular groove or in the second through hole on the circular plate, it only needs to cover the air hole cover and press it downward forcefully to unblock it. The setting of the air hole cover also prevents foreign substances from blocking the cylindrical groove when the air hole assembly is not in use. Thus, blockage of the air hole is effectively prevented, and a convenient method for unblocking is provided. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the present utility model;
[0016] Figure 2 is an anatomical structural diagram of the air hole assembly of the present utility model;
[0017] Figure 3 is a structural diagram of the connecting tube and the annular block of the present utility model;
[0018] Figure 4 is a sectional structural diagram of the inner tube assembly of the present utility model.
[0019] In the figure: 1, reaction kettle; 2, supporting legs; 3, cover plate; 4, inlet pipe; 5, air hole assembly; 6, outer air hole pipe; 7, air hole groove; 8, annular groove; 9, first fixing column; 10, inner pipe assembly; 11, first through hole; 12, air hole cover; 13, cap; 14, plug; 15, connecting cylinder; 16, annular clamping block; 17, inner pipe body; 18, cylindrical groove; 19, round plate; 20, second through hole; 21, third through hole; 22, rubber block; 23, second fixing column. Specific embodiments
[0020] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clear, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present utility model.
[0021] Embodiment 1
[0022] Please refer to Figure 1 - Figure 2 , the present utility model provides a technical solution: a vacuum air hole anti-blocking structure for a PET reaction kettle 1, including: a reaction kettle 1, a plurality of supporting legs 2 are arranged at the bottom of the reaction kettle 1, and the supporting legs 2 are used to support the reaction kettle 1, so that the temperature control during the reaction of the reaction kettle 1 in the air is relatively balanced. An inlet pipe 4 is arranged on one side of the reaction kettle 1, and the inlet pipe 4 is used for filling nitrogen. A cover plate 3 is installed on the top of the reaction kettle 1, and the cover plate 3 is used to cover and seal the reaction kettle 1 to prevent liquid from splashing out during the reaction. An air hole assembly 5 is arranged on the cover plate 3, and the air hole assembly 5 is used to prevent air hole blockage and also provides convenience for extracting the air inside the reaction kettle 1. The air hole assembly 5 includes an outer air hole pipe 6 and an inner pipe assembly 10. The cooperation of the outer pipe and the inner pipe can better seal when the inside is in a vacuum state. The outer air hole pipe penetrates through the cover plate 3 and extends into the reaction kettle 1 and is fixedly connected thereto, so as to fix the outer air hole pipe on the cover plate 3 to ensure stability during operation. A first through hole 11 is opened inside the outer air hole pipe, and an annular groove 8 is opened on the side wall of the first through hole 11. The first through hole 11 penetrates through the annular groove 8, and the annular groove 8 is arranged at a lower position of the first through hole 11.
[0023] By replacing the air hole with the air hole assembly 5, the gas passes through the air hole assembly 5, and the air hole assembly 5 can be better connected to external equipment. When it is necessary to extract the gas inside the reaction kettle 1 using the air hole assembly 5, there will be relative movement between the outside of the inner pipe body 17 and the inner wall of the outer air hole pipe 6, so that the entire air hole assembly 5 starts to communicate.
[0024] Embodiment 2
[0025] Please refer to Figure 2 and Figure 4 Based on the first embodiment, an inner tube assembly 10 is provided in the first through hole 11 and the annular groove 8. The inner tube assembly 10 is used to prevent the air holes from being blocked. The inner tube assembly 10 includes an inner tube body 17, a circular plate 19 and a rubber block 22. The inner tube body 17 extends into the first through hole 11 and is slidably connected thereto. The inner tube body 17 can slide up and down in the first through hole 11. The circular plate 19 is fixedly installed on the lower surface of the inner tube body 17. Similarly, the circular plate 19 can move up and down together with the inner tube body 17. The circular plate 19 is arranged in the annular groove 8 and is slidably connected thereto. The movement space of the circular plate 19 is limited. Similarly, the movement of the inner tube body 17 is restricted by the circular plate 19 and can only move a certain distance. The rubber block 22 is fixedly installed at the bottom of the circular plate 19. The rubber block 22 is for better sealing in a vacuum and also to prevent the bottom of the outer tube 6 of the air hole from being blocked. A plurality of second fixing columns 23 are fixedly installed on the upper surface of the circular plate 19. The second fixing columns 23 are to prevent the third through hole 21 on the circular plate 19 from being blocked when the circular plate 19 moves to the top of the annular groove 8, making it impossible to continue pumping air. The second fixing columns 23 are evenly arranged around the inner tube body 17.
[0026] A second through hole 20 is formed between every two adjacent second fixing columns 23. That is, the number of second through holes 20 is the same as the number of second fixing columns 23, and their arrangement patterns are also the same. A plurality of first fixing columns 9 are evenly arranged at the bottom of the annular groove 8. The arrangement of the plurality of first fixing columns 9 is to enhance the sealing effect. At the same time, when the second through hole 20 is blocked, the plurality of first fixing columns 9 respectively extend into the plurality of second through holes 20 and are slidably connected thereto, so that the second through hole 20 can be opened. A cylindrical groove 18 is formed inside the inner tube assembly 10. The cylindrical groove 18 penetrates the inner tube body 17, but is sealed at one end under the action of the disc. A plurality of third through holes 21 are evenly formed in the side wall of the bottom of the cylindrical groove 18. The size of the third through holes 21 is much larger than that of the second through holes 20, and the radius of the cylindrical groove 18 is also much larger than the radius of the second through holes 20 to ensure that any object passing through the second through holes 20 can flow freely in the pipeline. The third through holes 21 penetrate the side wall of the cylindrical groove 18. When liquid or some solids flow through the second through holes 20, they can enter the cylindrical groove 18 through the third through holes 21, and then flow into the next pipeline along the cylindrical groove 18.
[0027] In actual use, first, connect the connecting cylinder 15 to suck the air in the reaction kettle 1. During this process, the inner tube assembly 10 will be sucked and move upward. The second fixing column 23 contacts the top of the annular groove 8, and the rubber block 22 completely enters the annular groove 8, enabling gas to flow. The gas flows into the annular groove 8 from the bottom of the first through hole 11, then enters the cylindrical groove 18 through the second through hole 20 and the third through hole 21, and then enters the connecting cylinder 15 until it reaches the vacuum device. After the suction is completed, the air in the reaction kettle 1 becomes thin. Disconnect the connecting cylinder 15. Under the action of atmospheric pressure and gravity, the disc is pushed downward. The disc, the inner tube body 17, and the rubber block 22 will quickly move downward, and the rubber block 22 will firmly block the first through hole 11 below the annular groove 8.
[0028] Embodiment 3
[0029] Please refer to Figure 1 - Figure 3 , on the basis of Embodiment 2, an air hole cover 12 is provided above the inner tube assembly 10. The air hole cover 12 includes a cap 13 and a plug 14. The plug 14 extends into the cylindrical groove 18 and is slidably connected thereto. The extension of the plug 14 can protect the inner tube from being blocked. An air hole groove 7 is provided at the top of the air hole outer tube 6. The air hole groove 7 is to prevent air leakage when pumping air, resulting in poor pumping effect. When air needs to be pumped, an annular block 16 is clamped in the air hole groove 7. The top of the annular block 16 is fixedly connected to a connecting cylinder 15. The connecting cylinder 15 and the annular block 16 are a connection unit. Threads are provided on both the inner wall and the outer wall of the connecting cylinder 15. The provision of the threads makes it more convenient to connect it to the vacuum device.
[0030] In actual use, first, connect the connecting cylinder 15 to suck the air in the reaction kettle 1. During this process, the inner tube assembly 10 will be sucked and move upward. The second fixing column 23 contacts the top of the annular groove 8, and the rubber block 22 completely enters the annular groove 8, enabling gas to flow. The gas flows into the annular groove 8 from the bottom of the first through hole 11, then enters the cylindrical groove 18 through the second through hole 20 and the third through hole 21, and then enters the connecting cylinder 15 until it reaches the vacuum device. After the suction is completed, the air in the reaction kettle 1 becomes thin. Disconnect the connecting cylinder 15. Under the action of atmospheric pressure and gravity, the disc is pushed downward. The disc, the inner tube body 17, and the rubber block 22 will quickly move downward, and the rubber block 22 will firmly block the first through hole 11 below the annular groove 8. When not in use, use the air hole cover 12 to block the top of the inner tube. When it is blocked during use, the air hole cover 12 is also needed to block the top of the inner tube. Then press the cap 13 forcefully, which will cause the second fixing column 23 to extend into the second through hole 20, and the rubber block 22 to extend into the first through hole 11 at the bottom of the annular groove 8.
[0031] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A vacuum pore anti-blocking structure for a PET reactor (1), comprising: Reactor (1), characterized in that: a plurality of legs (2) are provided at the bottom of the reactor (1), an intake pipe (4) is provided on one side of the reactor (1), a cover plate (3) is installed on the top of the reactor (1), a pore component (5) is provided on the cover plate (3), the pore component (5) includes a pore outer tube (6) and an inner tube component (10), the pore outer tube penetrates through the cover plate (3) and extends into the reactor (1) and is fixedly connected thereto, a first through hole (11) is provided inside the pore outer tube, and an annular groove (8) is provided on the side wall of the first through hole (11).
2. A vacuum pore anti-blocking structure for a PET reactor (1) according to claim 1, characterized in that: An inner tube component (10) is provided in the first through hole (11) and the annular groove (8), the inner tube component (10) includes an inner tube body (17), a circular plate (19) and a rubber block (22), the inner tube body (17) extends into the first through hole (11) and is slidably connected thereto, the circular plate (19) is fixedly installed on the lower surface of the inner tube body (17), the circular plate (19) is arranged in the annular groove (8) and is slidably connected thereto, and the rubber block (22) is fixedly installed on the bottom of the circular plate (19).
3. A vacuum pore anti-blocking structure for a PET reactor (1) according to claim 2, characterized in that: A plurality of second fixing columns (23) are fixedly installed on the upper surface of the circular plate, and the second fixing columns (23) are evenly arranged centered on the inner tube body (17).
4. A vacuum pore anti-blocking structure for a PET reactor (1) according to claim 3, characterized in that: A second through hole (20) is provided between every two adjacent second fixing columns (23), a plurality of first fixing columns (9) are evenly arranged at the bottom of the annular groove (8), and the plurality of first fixing columns (9) respectively extend into the plurality of second through holes (20) and are slidably connected thereto.
5. A vacuum pore anti-blocking structure for a PET reactor (1) according to claim 4, characterized in that: A cylindrical groove (18) is provided inside the inner tube component (10), the cylindrical groove (18) penetrates through the inner tube body (17), and a plurality of third through holes (21) are evenly provided on the side wall of the bottom of the cylindrical groove (18), and the third through holes (21) penetrate through the side wall of the cylindrical groove (18).
6. A vacuum pore anti-blocking structure in a PET reactor (1) according to claim 5, characterized in that: A pore cover (12) is provided above the inner tube component (10), the pore cover (12) includes a cap (13) and a plug (14), and the plug (14) extends into the cylindrical groove (18) and is slidably connected thereto.
7. A vacuum pore anti-blocking structure for a PET reactor (1) according to claim 6, characterized in that: A pore groove (7) is provided at the top of the pore outer tube (6), when air extraction is required, an annular clamping block (16) is clamped in the pore groove (7), a connecting cylinder (15) is fixedly connected to the top of the annular clamping block (16), and threads are provided on both the inner wall and the outer wall of the connecting cylinder (15).