A methanol vaporization cylinder sealing assembly

Abstract

This utility model relates to the field of methanol vaporization cylinder sealing technology, specifically to a methanol vaporization cylinder sealing assembly, comprising a connecting cylinder seat, which consists of a limiting cylinder, an upper baffle, and a lower connecting cylinder, with an annular partition plate on the inner side of the limiting cylinder; a connecting sleeve, with a pair of limiting plates on the outer side of the connecting sleeve, and a sealing ring fitted on the outer side of the limiting plates; a flange fixed to the top of the connecting sleeve; an inner conveying pipe, which passes through the inner side of the connecting sleeve, with a pair of connecting seats on the outer side of the inner conveying pipe, and several long bolts connecting the connecting seats and the flange; a compression spring 1 fitted on the outer side of the long bolts between the flange and the connecting seats; a baffle fixed to the bottom edge of the inner conveying pipe, and a compression spring 2 sandwiched between the baffle and the bottom end of the connecting sleeve. This utility model solves the problem that existing pipelines are subject to combined deformation due to thermal expansion and contraction, pressure changes, etc., which traditional sealing assemblies cannot adapt to, leading to reduced sealing efficiency, stress concentration, and damage.

Description

Technical Field

[0001] This utility model relates to the field of methanol vaporization cylinder sealing technology, specifically to a methanol vaporization cylinder sealing assembly. Background Technology

[0002] The methanol vaporization cylinder sealing assembly is a core component that ensures the safe and efficient operation of the methanol vaporization process. Its design must take into account high temperature resistance, corrosion resistance, reliable sealing, and structural stability.

[0003] When the pipeline connection structure is subjected to thermal expansion and contraction or pressure changes, the pipeline structure will produce a small axial displacement. When the pipeline structure is locally heated or subjected to external loads, it may be subjected to a small lateral displacement. Traditional sealing components mostly use flange bolt hard connections or single bellows compensation, which cannot adapt to the combined deformation of the lateral or longitudinal direction. This will cause the sealing effect of the pipeline sealing components to gradually decrease, and the local stress of the pipeline will be more concentrated, resulting in damage. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing pipelines are subject to combined deformation due to thermal expansion and contraction, pressure changes, etc., which traditional sealing components cannot adapt to, resulting in reduced sealing efficiency, stress concentration, and damage.

[0005] To solve the above problems, the technical solution adopted by this utility model is a methanol vaporization cylinder sealing assembly, including: a connecting cylinder seat, which is composed of a limiting cylinder, an upper baffle, and a lower connecting cylinder connected by bolts. The limiting cylinder, the upper baffle, and the lower connecting cylinder are all provided with openings on their inner sides. An annular partition is fixed on the inner side of the limiting cylinder, which can divide the internal space of the limiting cylinder into two limiting areas.

[0006] A connecting sleeve is provided, with a pair of limiting plates fixed to the bottom outer side of the connecting sleeve. The two limiting plates are slidably positioned above and below the annular partition plate, and a sealing ring is fitted on the outer side of the limiting plates. A flange is fixed to the top of the connecting sleeve.

[0007] An inner conveying pipe is installed inside the connecting sleeve. A pair of connecting seats are fixed to the outside of the inner conveying pipe by bolts. Several long bolts are connected between the connecting seats and the flange. A compression spring is sleeved on the outside of the long bolts between the flange and the connecting seats. A baffle is fixed to the bottom edge of the inner conveying pipe. A compression spring is sandwiched between the baffle and the bottom of the connecting sleeve.

[0008] Preferably, a flexible graphite sealing ring is sandwiched between the upper baffle, the lower connecting cylinder and the inner side of the limiting cylinder to facilitate the sliding and sealing of the limiting plate.

[0009] Preferably, the inner diameter of a pair of connectors is smaller than the outer diameter of the inner conveying pipe, so that the connectors can completely clamp the inner conveying pipe.

[0010] Preferably, the inner side of the connecting sleeve is equipped with sealing gaskets at both the top and bottom, and the sealing gaskets are slidably connected to the outer side of the inner conveying pipe.

[0011] Preferably, both the connecting seat and the side of the flange have through holes at the long bolts. The long bolts have threaded grooves only near the bottom on the outside for connecting hexagonal nuts. The rest of the long bolts slide in the through holes.

[0012] Preferably, the inner diameter of the opening is larger than the outer diameter of the connecting sleeve, allowing the connecting sleeve to move laterally.

[0013] Preferably, the outer diameter of the limiting plate is smaller than the inner diameter of the limiting cylinder, and it does not contact the bolt, so that the limiting cylinder is not obstructed during displacement.

[0014] As can be seen from the above technical solution, compared with the prior art, this application adds a connecting sleeve and a connecting cylinder seat. Through the limiting plate and the limiting cylinder, as well as the sealing of the sealing ring and the flexible graphite sealing ring, the slight lateral displacement deformation of the pipeline can be achieved, preventing excessive local stress caused by local temperature changes or external loads on the pipeline, and relieving pipeline pressure. The addition of the connecting sleeve and the inner conveying pipe, as well as compression spring one and compression spring two, allows the inner conveying pipe to slide inside the connecting sleeve and provides a sealing gasket to ensure the sealing effect. Furthermore, through the cooperation of compression spring one and compression spring two, when the inner conveying pipe moves axially, a certain amount of movement margin is ensured at the sealed connection, thereby relieving the axial displacement of the pipeline caused by thermal expansion and contraction or pressure changes. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a schematic diagram of the overall structure of a methanol vaporization cylinder sealing assembly according to the present invention.

[0017] Figure 2 This is a partial structural cross-sectional view of a methanol vaporization cylinder sealing assembly according to the present invention.

[0018] Figure 3 This is a top view of the overall structure of a methanol vaporization cylinder sealing assembly according to the present invention.

[0019] Figure 4 This is an enlarged view of part A of the sealing assembly for a methanol vaporization cylinder according to this utility model.

[0020] In the attached image:

[0021] 1. Connecting sleeve seat; 11. Limiting sleeve; 12. Upper baffle; 13. Lower connecting sleeve; 14. Ring partition; 15. Flexible graphite sealing ring;

[0022] 2. Connecting sleeve; 21. Limiting plate; 22. Sealing ring; 23. Flange; 24. Sealing gasket;

[0023] 3. Inner conveying pipe; 31. Connecting seat; 32. Long bolt; 33. Compression spring one; 34. Stop; 35. Compression spring two. Detailed Implementation

[0024] 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.

[0025] This utility model provides a technical solution to address the existing problems mentioned in the background art.

[0026] Combined with appendix Figure 1 , 2 4. It can be seen that the connecting sleeve seat 1 is composed of a limiting sleeve 11, an upper baffle 12, and a lower connecting sleeve 13 connected by bolts. On the side of the upper baffle 12 and the lower connecting sleeve 13 that are in close contact with the connecting sleeve seat 1, near the inner edge, a sealing ring baffle is fixed to limit the flexible graphite sealing ring 15. The limiting sleeve 11, the upper baffle 12, and the lower connecting sleeve 13 are all provided with an opening. The inner diameter of the opening is larger than the outer diameter of the connecting sleeve 2, which allows the connecting sleeve 2 to achieve lateral displacement. An annular partition 14 is fixed inside the limiting sleeve 11, which can divide the internal space of the limiting sleeve 11 into two limiting areas. Setting two limiting areas can improve the sealing effect. A flexible graphite sealing ring 15 is sandwiched between the upper baffle 12, the lower connecting sleeve 13, and the inner side of the limiting sleeve 11. It has outstanding high temperature and low temperature resistance to facilitate the sliding and sealing of the limiting plate 21.

[0027] Combined with appendix Figure 2 , 3It can be seen that the connecting sleeve 2 has a pair of limiting plates 21 fixed at the bottom of its outer side. The two limiting plates 21 are slidably disposed above and below the annular partition 14, located in two limiting areas. A sealing ring 22 is sleeved on the outer side of the limiting plate 21 to seal the inside of the connecting sleeve 2. A flange 23 is fixed at the top of the connecting sleeve 2. Sealing gaskets 24 are embedded on the inner side of the connecting sleeve 2, located above and below. The sealing gaskets 24 are slidably connected to the outer side of the inner conveying pipe 3, similar to the existing dynamic sealing technology. However, in this scheme, the activity frequency is low. The outer diameter of the limiting plate 21 is smaller than the inner diameter of the limiting cylinder 11 and does not contact the bolt, so that the limiting cylinder 11 will not be obstructed when it is displaced.

[0028] Combined with appendix Figure 1-3 It can be seen that the inner conveying pipe 3 passes through the inner side of the connecting sleeve 2. A pair of connecting seats 31 are provided on the outer side of the inner conveying pipe 3 by bolts. The inner diameter of the pair of connecting seats 31 is smaller than the outer diameter of the inner conveying pipe 3, so that the connecting seats 31 can completely clamp the inner conveying pipe 3. Several long bolts 32 are connected between the connecting seats 31 and the flange 23. Through holes are opened on the side of the connecting seats 31 and the flange 23 at the long bolts 32. The long bolts 32 have threaded grooves only near the bottom end on the outer side for connecting hexagonal nuts. The rest of the long bolts 32 slide in the through holes. A compression spring 33 is sleeved on the outer side of the long bolts 32 between the flange 23 and the connecting seat 31. A stop 34 is fixed on the bottom edge of the inner conveying pipe 3. A compression spring 35 is clamped between the stop 34 and the bottom end of the connecting sleeve 2.

[0029] The working principle of this application is as follows: When the device is working, the connecting sleeve seat 1 is composed of a limiting sleeve 11, an upper baffle 12, and a lower connecting sleeve 13 connected by bolts. The upper baffle 12, the lower connecting sleeve 13, and the sealing ring baffle on one side near the inner edge of the connecting sleeve seat 1 limit the flexible graphite sealing ring 15. The inner diameter of the limiting sleeve 11, the upper baffle 12, and the lower connecting sleeve 13 is larger than the outer diameter of the connecting sleeve 2, allowing the connecting sleeve 2 to move laterally. The annular partition 14 on the inner side of the limiting sleeve 11 divides the internal space of the limiting sleeve 11 into two limiting areas. The upper baffle 12... The flexible graphite sealing ring 15 between the inner side of the lower connecting cylinder 13 and the limiting cylinder 11 facilitates the sliding and sealing of the limiting plate 21; a pair of limiting plates 21 at the bottom outer side of the connecting sleeve 2 are respectively slidably set in two limiting areas above and below the annular partition 14, and the sealing ring 22 on the outer side of the limiting plate 21 seals the inside of the connecting sleeve 2. The outer diameter of the limiting plate 21 is smaller than the inner diameter of the limiting cylinder 11 and does not contact the bolt, ensuring that the connecting sleeve 2 can smoothly move laterally in the connecting cylinder seat 1, thereby realizing the flexible connection and relative movement of the entire device while meeting the sealing requirements;

[0030] The flange 23 at the top of the connecting sleeve 2 is connected to a pair of connecting seats 31 on the outside of the inner conveying pipe 3 by bolts 32. The long bolt 32 has a threaded groove on the outside only near the bottom for connecting a hexagonal nut. The rest slides in the through holes on the side of the connecting seat 31 and the flange 23. A compression spring 33 is sleeved on the outside of the long bolt 32 between the flange 23 and the connecting seat 31, and a compression spring 35 is sandwiched between the bottom edge baffle 34 of the inner conveying pipe 3 and the bottom end of the connecting sleeve 2. By setting the compression spring 33 and the compression spring 35, the inner conveying pipe 3 can gradually return to the initial position after displacement. The sealing gaskets 24 on the upper and lower sides of the inner side of the connecting sleeve 2 are slidably connected to the outside of the inner conveying pipe 3.

[0031] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A methanol gasification cartridge seal assembly, comprising: include: The connecting cylinder seat is composed of a limiting cylinder, an upper baffle, and a lower connecting cylinder connected by bolts. The inner sides of the limiting cylinder, the upper baffle, and the lower connecting cylinder are all provided with openings. An annular partition is fixed inside the limiting cylinder, which can divide the internal space of the limiting cylinder into two limiting areas. A connecting sleeve is provided, with a pair of limiting plates fixed to the bottom outer side of the connecting sleeve. The two limiting plates are slidably disposed above and below the annular partition plate. A sealing ring is fitted on the outer side of the limiting plates. A flange is fixed to the top of the connecting sleeve. An inner conveying pipe is installed inside the connecting sleeve. A pair of connecting seats are provided on the outer side of the inner conveying pipe and fixed by bolts. Several long bolts are connected between the connecting seats and the flange. A compression spring is sleeved on the outer side of the long bolts between the flange and the connecting seat. A baffle is fixed at the bottom edge of the inner conveying pipe. A compression spring is sandwiched between the baffle and the bottom of the connecting sleeve.

2. The methanol vaporization cylinder sealing assembly according to claim 1, characterized in that: Flexible graphite sealing rings are sandwiched between the upper baffle, the lower connecting cylinder and the inner side of the limiting cylinder to facilitate the sliding and sealing of the limiting plate.

3. The methanol vaporization cylinder sealing assembly according to claim 1, characterized in that: The inner diameter of the connecting seat is smaller than the outer diameter of the inner conveying pipe, which allows the connecting seat to completely clamp the inner conveying pipe.

4. The methanol vaporization cylinder sealing assembly according to claim 1, characterized in that: The inner sides of the connecting sleeve are located at the top and bottom, and both are fitted with sealing gaskets. The sealing gaskets are slidably connected to the outer side of the inner conveying pipe.

5. A methanol vaporization cylinder sealing assembly according to claim 1, characterized in that: Both the connecting seat and the flange side have through holes at the long bolts. The long bolt has a threaded hole only near the bottom on the outside for connecting a hexagonal nut. The rest of the long bolt slides in the through holes.

6. The methanol vaporization cylinder sealing assembly according to claim 1, characterized in that: The inner diameter of the opening is larger than the outer diameter of the connecting sleeve, allowing the connecting sleeve to move laterally.

7. A methanol vaporization cylinder sealing assembly according to claim 1, characterized in that: The outer diameter of the limiting plate is smaller than the inner diameter of the limiting cylinder, and it does not contact the bolt, so that the limiting cylinder will not be obstructed when it is displaced.

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