Anti-corrosion pipeline for rectification device

Abstract

The utility model discloses an anti-corrosion pipeline for a rectification device, which comprises a round pipe, and a first fixing plate is fixedly connected to the left side in the round pipe. Through the arrangement of the sliding cylinder, when non-condensable gas is conveyed by the round pipe, the non-condensable gas is in full contact with the thin magnesium plate, after an anti-corrosion coating on the surface of the thin magnesium plate falls off, the thin magnesium plate is corroded in an accelerated mode, gas enters the sliding cylinder through the thin magnesium plate, the sliding cylinder ejects the sealing cover rightwards under the pressure of the gas, the first magnetic ring is separated from the second magnetic ring, and the non-condensable gas is conveyed through the first magnetic ring. At the moment, the sealing cover blocks the through hole towards the right side, the gas can jack up the blocking block upwards and convey the blocking block to the right side of the interior of the round pipe through the detection pipe, the gas flow velocity detector can detect the gas flow velocity at the moment, and therefore maintenance personnel can determine that the anti-corrosion coating of the pipeline falls off according to the reading of the gas flow velocity detector; and therefore, the pipeline with reduced corrosion resistance can be found quickly and accurately, use by a user is facilitated, and the practicability of the pipeline is improved.

Description

Technical Field

[0001] This utility model relates to the field of distillation apparatus piping technology, specifically to a corrosion-resistant distillation apparatus piping. Background Technology

[0002] The main material of the distillation non-condensable gas pipeline is 20# steel. Its function is to transport the non-condensable gas from the top of the tower to the steam superheater for combustion as fuel gas. Analysis shows that the main components of the non-condensable gas are carbon dioxide and a small amount of methanol. The methanol is absorbed by washing with demineralized water, and the carbon dioxide reacts with the demineralized water to form carbonic acid, which corrodes the 20# steel pipeline.

[0003] The existing pipelines in the distillation process are quite long and require splicing of multiple sections. Furthermore, it is necessary to maintain pipelines with reduced corrosion resistance. However, it is difficult to locate pipelines with reduced corrosion resistance, and disassembling and maintaining them one by one requires a lot of manpower and resources, wastes a lot of time, and is inconvenient for users, thus reducing the practicality of the pipelines. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a corrosion-resistant pipe for a distillation apparatus, which has the advantages of being easy and quick to locate. This solves the problems of existing pipes being long in the distillation process, requiring multiple pipe sections to be spliced, and needing to maintain pipes with reduced corrosion resistance. However, it is difficult to find pipes with reduced corrosion resistance, and disassembling and maintaining the pipes one by one requires a lot of manpower and resources and wastes a lot of time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant pipe for a distillation apparatus, comprising a circular pipe, a first fixing plate fixedly connected to the left side of the inner side of the circular pipe, a plurality of gas guide holes being formed on the side of the first fixing plate in a circular array, a cylinder being disposed inside the first fixing plate, a detection groove being formed on the left side surface of the cylinder, a sliding hole being formed on the right side surface of the cylinder, the sliding hole communicating with the detection groove, the diameter of the detection groove being larger than the sliding hole, a thin magnesium plate being fixedly connected inside the detection groove, a sliding cylinder being slidably connected inside the sliding hole, a sealing cover being disposed on the right side of the cylinder, the right end of the sliding cylinder being located inside the sealing cover, a first magnetic ring being fixedly connected to the left side of the sealing cover, an annular groove being formed on the right side surface of the cylinder, and a first magnetic ring being fixedly connected inside the annular groove. A second magnetic ring is connected to the first magnetic ring, and the second magnetic ring attracts each other. A second fixing plate is fixedly connected to the right side of the inside of the circular tube. The side of the second fixing plate has a through hole. The surfaces of the first fixing plate, the thin magnesium plate, the sealing cover, and the second fixing plate are all coated with an anti-corrosion coating. A detection tube is connected to the top of the circular tube. The input end of the detection tube is located between the first and second fixing plates, and the output end of the detection tube is located to the right of the second fixing plate. A plugging ring is fixedly connected inside the input end of the detection tube. A circular hole is opened on the surface of the plugging ring, and a plugging block is slidably connected inside the circular hole. A gas flow rate detector is installed inside the detection tube. The gas flow rate detector is coated with an anti-corrosion coating. The circular tube, the first fixing plate, the second fixing plate, and the gas flow rate detector are all made of 304 stainless steel.

[0006] In a preferred embodiment of this invention, a circular plate is fixedly connected inside the detection tube, the circular plate is located at the top of the plug ring, a cylinder is fixedly connected to the bottom of the circular plate, a spring is fixedly connected to the bottom of the circular plate, the spring is located inside the cylinder, a sliding plate is fixedly connected to the bottom of the spring, the sliding plate is slidably connected to the inner wall of the cylinder, a connecting rod is fixedly connected to the bottom of the sliding plate, and the bottom end of the connecting rod is fixedly connected to the plug block.

[0007] As a preferred embodiment of this utility model, the surface of the circular plate is provided with a plurality of air outlets, which are distributed in a circular array, and the circular plate is located on the outside of the cylinder.

[0008] As a preferred embodiment of this utility model, the side of the first fixing plate is provided with an internal thread groove, the surface of the cylinder is provided with an external thread, the cylinder is threadedly connected to the internal thread groove through the external thread, and both ends of the left side of the cylinder are fixedly connected with rotating blocks, the rotating blocks are located on the outside of the thin magnesium plate.

[0009] As a preferred embodiment of the present invention, a sealing ring is fixedly connected to the left side of the sealing cover, and a magnetic ring groove is formed on the right side surface of the sealing ring. The first magnetic ring is located inside the magnetic ring groove and is slidably connected to it.

[0010] In a preferred embodiment of this invention, a third magnetic ring is fixedly connected to the right side of the sealing cover, and an annular ring is formed on the left side of the second fixing plate, with a fourth magnetic ring fixedly connected inside the annular ring.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model, through the design of the sliding cylinder, ensures more thorough contact between the circular pipe and the thin magnesium plate on the side of the first fixed plate when transporting non-condensable gas. When the anti-corrosion coating on the surface of the thin magnesium plate peels off, the thin magnesium plate will corrode more rapidly, causing gas to enter the interior of the sliding cylinder through the thin magnesium plate. The sliding cylinder, under the pressure of the gas, pushes the sealing cover to the right, causing the first magnetic ring and the second magnetic ring to separate. At this time, the sealing cover blocks the through hole to the right, and the gas will push the blockage upward and be transported to the right side of the inside of the circular pipe through the detection tube. At this time, the gas flow rate detector will detect the gas flow rate, so that maintenance personnel can determine the peeling of the anti-corrosion coating of the pipeline by the reading of the gas flow rate detector. This makes it quick and accurate to find pipelines with reduced anti-corrosion performance, which is convenient for users and improves the practicality of the pipeline.

[0013] 2. This utility model limits the blocking block by setting a spring. After the blocking block is pushed out, the spring is squeezed and contracted by the connecting rod and the sliding plate. When maintaining the round tube, the spring will extend and drive the sliding plate and the connecting rod to push the blocking block into the inside of the blocking ring to complete the reset, avoiding the need to reinsert the blocking block into the blocking ring and wasting time, thereby improving maintenance efficiency. Attached Figure Description

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

[0015] Figure 2 This is a frontal sectional view of the structure of this utility model;

[0016] Figure 3 This is a side view of the structure of this utility model;

[0017] Figure 4 This is a front view of the cylindrical structure and the second fixing plate of this utility model;

[0018] Figure 5 The structure of this utility model Figure 2 An enlarged diagram of A in the diagram.

[0019] In the diagram: 1. Circular tube; 2. First fixed plate; 3. Air guide hole; 4. Cylinder; 5. Detection groove; 6. Sliding hole; 7. Thin magnesium plate; 8. Sliding cylinder; 9. Sealing cover; 10. First magnetic ring; 11. Second magnetic ring; 12. Second fixed plate; 13. Through hole; 14. Detection tube; 15. Plug ring; 16. Plug block; 17. Gas flow rate detector; 18. Circular plate; 19. Cylinder; 20. Spring; 21. Slide plate; 22. Connecting rod; 23. Air outlet; 24. Internal thread groove; 25. Rotating block; 26. Sealing ring; 27. Magnetic ring groove; 28. Third magnetic ring; 29. ​​Fourth magnetic ring. Detailed Implementation

[0020] 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.

[0021] like Figures 1 to 5 As shown, a corrosion-resistant pipe for a distillation apparatus includes a circular pipe 1. A first fixed plate 2 is fixedly connected to the left side of the interior of the circular pipe 1. Several air guide holes 3 are arranged in a circular array on the side of the first fixed plate 2. A cylinder 4 is disposed inside the first fixed plate 2. A detection groove 5 is formed on the left surface of the cylinder 4, and a sliding hole 6 is formed on the right surface of the cylinder 4. The sliding hole 6 communicates with the detection groove 5, and the diameter of the detection groove 5 is larger than that of the sliding hole 6. A thin magnesium plate 7 is fixedly connected inside the detection groove 5. A sliding cylinder 8 is slidably connected inside the sliding hole 6. A sealing cover 9 is disposed on the right side of the cylinder 4, and the right end of the sliding cylinder 8 is located inside the sealing cover 9. A first magnetic ring 10 is fixedly connected to the left side of the sealing cover 9. An annular groove is formed on the right surface of the cylinder 4, and a second magnetic ring 11 is fixedly connected inside the annular groove. The second magnetic ring 11 is connected to the first magnetic ring 10. The two tubes are mutually attracted and connected. A second fixing plate 12 is fixedly connected to the right side of the inner tube 1. A through hole 13 is opened on the side of the second fixing plate 12. The surfaces of the first fixing plate 2, the thin magnesium plate 7, the sealing cover 9 and the second fixing plate 12 are all sprayed with an anti-corrosion coating. The top of the tube 1 is connected to a detection tube 14. The input end of the detection tube 14 is located between the first fixing plate 2 and the second fixing plate 12. The output end of the detection tube 14 is located on the right side of the second fixing plate 12. A plug ring 15 is fixedly connected inside the input end of the detection tube 14. A round hole is opened on the surface of the plug ring 15. A plug block 16 is slidably connected inside the round hole. A gas flow rate detector 17 is installed inside the detection tube 14. The gas flow rate detector 17 is sprayed with an anti-corrosion coating. The tube 1, the first fixing plate 2, the second fixing plate 12 and the gas flow rate detector 17 are all made of 304 stainless steel.

[0022] refer to Figure 2 A circular plate 18 is fixedly connected inside the detection tube 14. The circular plate 18 is located at the top of the plug ring 15. A cylinder 19 is fixedly connected to the bottom of the circular plate 18. A spring 20 is fixedly connected to the bottom of the circular plate 18. The spring 20 is located inside the cylinder 19. A sliding plate 21 is fixedly connected to the bottom of the spring 20. The sliding plate 21 is slidably connected to the inner wall of the cylinder 19. A connecting rod 22 is fixedly connected to the bottom of the sliding plate 21. The bottom end of the connecting rod 22 is fixedly connected to the plug block 16.

[0023] As a technical optimization of this utility model, the spring 20 limits the blocking block 16. After the blocking block 16 is pushed out, the spring 20 is squeezed and contracted by the connecting rod 22 and the sliding plate 21. When maintaining the round tube 1, the spring 20 will extend and drive the sliding plate 21 and the connecting rod 22 to push the blocking block 16 into the inside of the blocking ring 15 to complete the reset, avoiding the need to reinsert the blocking block 16 into the blocking ring 15 and wasting time, thereby improving maintenance efficiency.

[0024] refer to Figure 2 The surface of the circular plate 18 is provided with a number of air outlets 23, which are distributed in a circular array. The circular plate 18 is located on the outside of the cylinder 19.

[0025] As a technical optimization of this utility model, the setting of the air outlet 23 facilitates the entry of gas into the right side of the inside of the circular tube 1 through the air outlet 23, so as not to block it and cause pipeline failure, and further improves the practicality of the pipeline.

[0026] refer to Figure 3 and Figure 4 The first fixing plate 2 has an internal thread groove 24 on its side, and the cylinder 4 has an external thread on its surface. The cylinder 4 is threaded to the internal thread groove 24 through the external thread. Both ends of the left side of the cylinder 4 are fixedly connected to rotating blocks 25, which are located on the outside of the thin magnesium plate 7.

[0027] As a technical optimization of this utility model, by setting the internal thread groove 24, when maintaining the pipeline, the two rotating blocks 25 can be rotated to remove the cylinder 4 from the inside of the internal thread groove 24, which facilitates the replacement of the cylinder 4 and the thin magnesium plate 7.

[0028] refer to Figure 5 A sealing ring 26 is fixedly connected to the left side of the sealing cover 9. A magnetic ring groove 27 is opened on the right side surface of the sealing ring 26. The first magnetic ring 10 is located inside the magnetic ring groove 27 and is slidably connected to it.

[0029] As a technical optimization of this utility model, by setting the sealing ring 26, the gas is prevented from entering the interior of the sealing cover 9 through the gap between the sealing cover 9 and the cylinder 4 and corroding the slide cylinder 8, so that the slide cylinder 8 is damaged and there is not enough pressure to push the sealing cover 9 to the right.

[0030] refer to Figure 4 and Figure 5 A third magnetic ring 28 is fixedly connected to the right side of the sealing cover 9, and an annular ring is opened on the left side of the second fixing plate 12. A fourth magnetic ring 29 is fixedly connected inside the annular ring.

[0031] As a technical optimization of this utility model, by setting the third magnetic ring 28 and the fourth magnetic ring 29, the sealing cover 9 can be more firmly attracted to the second fixing plate 12 after blocking the through hole 13, and will not fall off or slide, thereby improving the accuracy of the gas flow rate detector 17.

[0032] The working principle and usage process of this utility model are as follows: During use, the user introduces non-condensable gas from the left side of the circular tube 1, ensuring more thorough contact with the thin magnesium plate 7 on the side of the first fixed plate 2. When the anti-corrosion coating on the surface of the thin magnesium plate 7 peels off, the thin magnesium plate 7 will corrode more rapidly, causing the gas to enter the interior of the slide cylinder 8 through the thin magnesium plate 7. The slide cylinder 8, under gas pressure, pushes the sealing cover 9 to the right, causing the first magnetic ring 10 to separate from the second magnetic ring 11. At this time, the sealing cover 9 blocks the through hole 13 to the right, and the gas will then push the block 16 upwards. After the block 16 is pushed out, the spring 20 is squeezed and contracted by the connecting rod 22 and the sliding plate 21, so that the gas passes through the vent 23 and is detected by the gas flow rate detector 17. Then, it is transported to the right side of the inside of the circular pipe 1 through the detection tube 14. At this time, the gas flow rate detected by the gas flow rate detector 17 is stable and easy to observe. This allows maintenance personnel to determine the anti-corrosion coating of the pipeline by reading the gas flow rate detector 17, thereby quickly and accurately finding the pipeline with reduced anti-corrosion performance. Then, the pipeline can be removed for maintenance.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] 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. A corrosion-resistant pipe for a distillation apparatus, comprising a circular pipe (1), characterized in that: A first fixing plate (2) is fixedly connected to the left side of the inside of the circular tube (1). Several air guide holes (3) are opened on the side of the first fixing plate (2), arranged in a circular array. A cylinder (4) is disposed inside the first fixing plate (2). A detection groove (5) is opened on the left surface of the cylinder (4), and a sliding hole (6) is opened on the right surface of the cylinder (4). The sliding hole (6) communicates with the detection groove (5), and the diameter of the detection groove (5) is larger than that of the sliding hole (6). A thin magnesium plate (7) is fixedly connected inside the measuring groove (5). A sliding cylinder (8) is slidably connected inside the sliding hole (6). A sealing cover (9) is provided on the right side of the cylinder (4). The right end of the sliding cylinder (8) is located inside the sealing cover (9). A first magnetic ring (10) is fixedly connected to the left side of the sealing cover (9). An annular groove is opened on the surface of the right side of the cylinder (4). A second magnetic ring (11) is fixedly connected inside the annular groove. The second magnetic ring (11) and the first magnetic ring (10) attract each other. A second fixing plate (12) is fixedly connected to the right side of the inside of the circular tube (1). A through hole (13) is opened on the side of the second fixing plate (12). The surfaces of the first fixing plate (2), the thin magnesium plate (7), the sealing cover (9), and the second fixing plate (12) are all coated with an anti-corrosion coating. A detection tube (14) is connected to the top of the circular tube (1). The input end of the detection tube (14) is located between the first fixing plate (2) and the second fixing plate (12), and the output end of the detection tube (14) is located between the second fixing plate (2) and the second fixing plate (12). On the right side of the plate (12), a plug ring (15) is fixedly connected inside the input end of the detection tube (14). A circular hole is opened on the surface of the plug ring (15). A plug block (16) is slidably connected inside the circular hole. A gas flow rate detector (17) is installed inside the detection tube (14). The gas flow rate detector (17) is coated with an anti-corrosion coating. The circular tube (1), the first fixed plate (2), the second fixed plate (12) and the gas flow rate detector (17) are all made of 304 stainless steel.

2. The corrosion-resistant pipe for a distillation apparatus according to claim 1, characterized in that: A circular plate (18) is fixedly connected inside the detection tube (14). The circular plate (18) is located at the top of the plug ring (15). A cylinder (19) is fixedly connected to the bottom of the circular plate (18). A spring (20) is fixedly connected to the bottom of the circular plate (18). The spring (20) is located inside the cylinder (19). A sliding plate (21) is fixedly connected to the bottom of the spring (20). The sliding plate (21) is slidably connected to the inner wall of the cylinder (19). A connecting rod (22) is fixedly connected to the bottom of the sliding plate (21). The bottom end of the connecting rod (22) is fixedly connected to the plug block (16).

3. The corrosion-resistant pipe for a distillation apparatus according to claim 2, characterized in that: The circular plate (18) has several air vents (23) on its surface, which are arranged in a circular array. The circular plate (18) is located on the outside of the cylinder (19).

4. The corrosion-resistant pipe for a distillation apparatus according to claim 1, characterized in that: The first fixing plate (2) has an internal thread groove (24) on its side, and the cylinder (4) has an external thread on its surface. The cylinder (4) is threaded to the internal thread groove (24) through the external thread. Both ends of the left side of the cylinder (4) are fixedly connected to rotating blocks (25), and the rotating blocks (25) are located on the outside of the thin magnesium plate (7).

5. The corrosion-resistant pipe for a distillation apparatus according to claim 1, characterized in that: A sealing ring (26) is fixedly connected to the left side of the sealing cover (9), and a magnetic ring groove (27) is opened on the right side surface of the sealing ring (26). The first magnetic ring (10) is located inside the magnetic ring groove (27) and is slidably connected to it.

6. The corrosion-resistant pipe for a distillation apparatus according to claim 1, characterized in that: A third magnetic ring (28) is fixedly connected to the right side of the sealing cover (9), and an annular ring is opened on the left side of the second fixing plate (12), with a fourth magnetic ring (29) fixedly connected inside the annular ring.

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