Inner sealing element with anti-leakage function
By connecting the first flange and the first fixing ring on the outlet pipe and connecting pipe of the methanol synthesis tower, and setting adjustment components on the surface of the inner seal to form a double seal structure, the leakage problem caused by aging and corrosion of the flange pad is solved. Improves the reliability and safety of seals.
Patent Information
- Application Number
- CN202421412249.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The single-layer flange pad at the outlet flange of the methanol synthesis tower is aging and corrosion, resulting in high leakage risk, which may cause poisoning or fire in staff, causing significant losses.
Design an inner seal with anti-leakage function, by welding the first flange and the first fixing ring on the methanol synthesis tower outlet pipe and the connecting pipe, and providing an adjustment component on the surface of the inner seal, including a second flange, The first sealing ring, the moving ring, the moving rod and the spring form a double sealing structure.
Through the cooperation of the double sealing ring and the movable ring, a tighter sealing effect is formed, which avoids leakage and improves the reliability and safety of the sealing. Even if one sealing ring ages, the other can still maintain a certain sealing effect.
Smart Images
Figure CN222458747U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealing, in particular to an inner sealing component with an anti-leakage function. Background Art
[0002] Methanol synthesis tower refers to the reaction equipment used to synthesize methanol by hydrogenating carbon monoxide. It is composed of a cylinder, a catalyst support device, a heat exchange component and a gas distributor. The typical process includes raw gas production, raw gas purification, methanol synthesis, crude methanol distillation and other processes.
[0003] The connection between the outlet of the methanol synthesis tower and the outlet pipeline is generally made through flanges, flange gaskets and bolts. Since the flange gasket is a single-layer setting, after long-term use, the flange gasket will age and corrode, and leakage may occur at the outlet flange, which may easily cause poisoning of workers or cause fire, resulting in heavy losses. Utility Model Content
[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide an inner seal with an anti-leakage function, which can solve the problem that due to the single-layer arrangement of the flange gasket, the flange gasket ages and corrodes after long-term use, leakage may occur at the outlet flange, which may easily cause poisoning of the staff or cause a fire, resulting in heavy losses.
[0005] To achieve the above object, the utility model provides the following technical solutions: an inner seal with anti-leakage function, comprising a methanol synthesis tower body outlet pipe, the surface of which is welded with a first flange and a first fixing ring;
[0006] The front end of the outlet pipe of the methanol synthesis tower body is provided with a connecting pipe and an inner sealing member, and the symmetrical position of the connecting pipe is also welded with a first flange and a first fixing ring;
[0007] Wherein, an adjustment component is arranged on the surface of the inner sealing member.
[0008] Preferably, the adjustment assembly comprises a second flange, and the second flange is welded to the surface of the inner seal;
[0009] Wherein, the second flange and the opposite surface of the first fixing ring are provided with a first sealing ring, and the first sealing ring is interference-fitted with the first fixing ring and the inner sealing member;
[0010] The surface of the second flange is provided with a plurality of through holes, the surface of the inner seal is slidably sleeved with a movable ring, one end of the movable ring close to the second flange is fixedly connected with a plurality of movable rods, and the surface of each movable rod is sleeved with a spring;
[0011] Wherein, a plurality of movable rods are respectively connected to corresponding through holes in a sliding manner, and second sealing rings are respectively arranged at both ends of the inner sealing member.
[0012] Preferably, there are two adjustment components, which are symmetrically arranged at two ends of the inner seal.
[0013] Preferably, the inner seal is sealed with the methanol synthesis tower body outlet pipe and the connecting pipe through two second sealing rings respectively.
[0014] Preferably, a plurality of first bolt holes are formed on the surface of the first flange, and a plurality of second bolt holes are formed on the surface of the second flange;
[0015] The inner walls of each corresponding first bolt hole and second bolt hole of the first flange and the second flange are slidably connected with bolts, and the surface of each bolt is threadedly sleeved with a nut.
[0016] Preferably, the two first flanges and the two second flanges are fixedly connected by a plurality of bolts and nuts.
[0017] Compared with the prior art, the beneficial effects of the utility model are:
[0018] (1) The inner seal with anti-leakage function is sealed by the second sealing ring and the first sealing ring, and the first sealing ring is sealed by the movable ring, so that a tighter seal can be formed. Compared with the existing seals, the use of the first sealing ring and the second sealing ring for sealing can improve the sealing effect. Even if one of the sealing rings has problems or is aged, the other sealing ring can still maintain a certain sealing effect, avoiding leakage, causing poisoning of workers or causing fire, causing major losses, thereby improving the reliability and safety of the seal.
[0019] (2) The inner seal with anti-leakage function squeezes the first sealing ring through a spring, and the spring can be replaced during the sealing process according to the different internal air pressures of the methanol synthesis tower, so that the sealing pressure can be adjusted according to the different internal air pressures of the methanol synthesis tower, which is convenient for sealing the methanol synthesis tower and can prevent leakage of the methanol synthesis tower during the sealing process, thereby improving the sealing effect of the inner seal and improving the safety of the inner seal. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0021] Figure 1 This is a schematic diagram of the structure of an inner sealing member with anti-leakage function of the utility model;
[0022] Figure 2 This is a schematic diagram of the inner seal of the utility model;
[0023] Figure 3 This is a schematic diagram of the second flange of the utility model;
[0024] Figure 4 This is a schematic diagram of the first sealing ring of the utility model;
[0025] Figure 5 This is a schematic diagram of the second sealing ring of the utility model;
[0026] Figure 6 It is a schematic diagram of the movable ring of the utility model.
[0027] Figure numerals: 1. methanol synthesis tower body outlet pipe; 2. connecting pipe; 3. inner seal; 4. first flange; 5. second flange; 6. first bolt hole; 7. second bolt hole; 8. bolt; 9. nut; 10. first fixing ring; 11. first sealing ring; 12. second sealing ring; 13. movable ring; 14. through hole; 15. movable rod; 16. spring. DETAILED DESCRIPTION
[0028] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0029] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0030] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0031] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0032] See also Figure 1-6The utility model provides a technical solution: an inner seal with anti-leakage function, comprising a methanol synthesis tower body outlet pipe 1, a first flange 4 and a first fixing ring 10 are welded on the surface of the methanol synthesis tower body outlet pipe 1, a connecting pipe 2 and an inner seal 3 are arranged at the front end of the methanol synthesis tower body outlet pipe 1, a first flange 4 and a first fixing ring 10 are also welded at the symmetrical position of the connecting pipe 2, and an adjustment component is arranged on the surface of the inner seal 3.
[0033] The adjustment component includes a second flange 5, which is welded to the surface of the inner seal 3. The first sealing ring 11 is provided on the opposite surface of the second flange 5 and the first fixing ring 10. The first sealing ring 11 is interference fit with the first fixing ring 10 and the inner seal 3. A plurality of through holes 14 are provided on the surface of the second flange 5. A movable ring 13 is slidably sleeved on the surface of the inner seal 3. A plurality of movable rods 15 are fixedly connected to one end of the movable ring 13 close to the second flange 5. A spring 16 is sleeved on the surface of each movable rod 15. The plurality of movable rods 15 are respectively slidably connected to the corresponding through holes 14. Second sealing rings 12 are respectively provided at both ends of the inner seal 3.
[0034] There are two adjustment components, which are symmetrically arranged at two ends of the inner seal 3.
[0035] The inner seal 3 is sealed with the methanol synthesis tower body outlet pipe 1 and the connecting pipe 2 through two second sealing rings 12. The shape of the second sealing ring 12 is as follows: Figure 5 shown.
[0036] A plurality of first bolt holes 6 are provided on the surface of the first flange 4, and a plurality of second bolt holes 7 are provided on the surface of the second flange 5. The inner wall of each corresponding first bolt hole 6 and second bolt hole 7 of the first flange 4 and the second flange 5 is slidably connected with a bolt 8, and a nut 9 is threadedly sleeved on the surface of each bolt 8. The two first flanges 4 and the two second flanges 5 are fixedly connected by the plurality of bolts 8 and nuts 9.
[0037] When using the inner seal, first place the second sealing ring 12 and the first sealing ring 11 at the contact position of the methanol synthesis tower body outlet pipe 1 and the inner seal 3, put the spring 16 on the surface of the corresponding movable rod 15, and slide the movable rod 15 with the corresponding through hole 14. Then, the methanol synthesis tower body outlet pipe 1 and the inner seal 3 are contacted, so that the first sealing ring 11 and the second sealing ring 12 seal the methanol synthesis tower body outlet pipe 1 and the inner seal 3.
[0038] Then, the bolts 8 are passed through the corresponding first bolt holes 6 and second bolt holes 7, and the first flange 4 and the second flange 5 are fixed with nuts 9. When the first flange 4 and the second flange 5 are fixed with bolts 8 and nuts 9, the second flange 5 will move toward the outlet pipe 1 of the methanol synthesis tower body, and the second flange 5 drives the inner seal 3 to approach the outlet pipe 1 of the methanol synthesis tower body, and squeezes the second sealing ring 12. The second flange 5 squeezes the spring 16, and the spring 16 drives the movable ring 13 to squeeze the first sealing ring 11. The movable ring 13 drives the movable rod 15 to slide inside the corresponding through hole 14, and the first sealing ring 11 is deformed under the squeezing of the movable ring 13, so that the first sealing ring 11 is interference fit with the first fixed ring 10 and the inner seal 3, thereby improving the sealing effect. Compared with using only one layer of sealing gasket, the sealing effect is improved.
[0039] Repeat the above process to connect and seal the connecting pipe 2 and the inner seal 3. When using the inner seal, the squeezing force of the movable ring 13 on the first sealing ring 11 can be changed by replacing different springs 16, so that the first sealing ring 11 produces different deformation degrees, which is convenient for adjusting the sealing pressure according to the different air pressures inside the methanol synthesis tower, facilitating the sealing of the methanol synthesis tower, and preventing leakage of the methanol synthesis tower during the sealing process, thereby improving the sealing effect of the inner seal 3 and improving the safety of the inner seal 3.
[0040] Furthermore, by sealing with the second sealing ring 12 and the first sealing ring 11 and sealing the first sealing ring 11 with the movable ring 13, a tighter seal can be formed. Compared with the existing seals, the use of the first sealing ring 11 and the second sealing ring 12 for sealing can improve the sealing effect. Even if one of the sealing rings has problems or is aged, the other sealing ring can still maintain a certain sealing effect, avoiding leakage, poisoning of workers or fire, and causing significant losses, thereby improving the reliability and safety of the seal.
[0041] The first sealing ring 11 is squeezed by the spring 16, and during the sealing process, the spring 16 can be replaced according to the different internal air pressures of the methanol synthesis tower, so that the sealing pressure can be adjusted according to the different internal air pressures of the methanol synthesis tower, and the methanol synthesis tower can be sealed. It can prevent the methanol synthesis tower from leaking during the sealing process, improve the sealing effect of the inner seal 3, and improve the safety of the inner seal 3.
[0042] Working principle: When using the inner seal, first place the second sealing ring 12 and the first sealing ring 11 at the contact position between the methanol synthesis tower body outlet pipe 1 and the inner seal 3, put the spring 16 on the surface of the corresponding movable rod 15, and slide the movable rod 15 with the corresponding through hole 14. Then, the methanol synthesis tower body outlet pipe 1 and the inner seal 3 are contacted, so that the first sealing ring 11 and the second sealing ring 12 seal the methanol synthesis tower body outlet pipe 1 and the inner seal 3.
[0043] Then, the bolts 8 are passed through the corresponding first bolt holes 6 and second bolt holes 7, and the first flange 4 and the second flange 5 are fixed with nuts 9. When the first flange 4 and the second flange 5 are fixed with bolts 8 and nuts 9, the second flange 5 will move toward the outlet pipe 1 of the methanol synthesis tower body, and the second flange 5 drives the inner seal 3 to approach the outlet pipe 1 of the methanol synthesis tower body, and squeezes the second sealing ring 12. The second flange 5 squeezes the spring 16, and the spring 16 drives the movable ring 13 to squeeze the first sealing ring 11. The movable ring 13 drives the movable rod 15 to slide inside the corresponding through hole 14, and the first sealing ring 11 is deformed under the squeezing of the movable ring 13, so that the first sealing ring 11 is interference fit with the first fixed ring 10 and the inner seal 3, thereby improving the sealing effect. Compared with using only one layer of sealing gasket, the sealing effect is improved.
[0044] Repeat the above process to connect and seal the connecting pipe 2 and the inner seal 3. When using the inner seal, the squeezing force of the movable ring 13 on the first sealing ring 11 is changed by replacing different springs 16, so that the first sealing ring 11 produces different deformation degrees, which is convenient for adjusting the sealing pressure according to the different air pressures inside the methanol synthesis tower, facilitating the sealing of the methanol synthesis tower, and preventing the methanol synthesis tower from leaking during the sealing process, thereby improving the sealing effect of the inner seal 3 and improving the safety of the inner seal.
[0045] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. An inner sealing member with anti-leakage function, comprising a methanol synthesis tower body outlet pipe (1), the surface of which is welded with a first flange (4) and a first fixing ring (10); Features: A connecting pipe (2) and an inner sealing member (3) are provided at the front end of the methanol synthesis tower body outlet pipe (1), and a first flange (4) and a first fixing ring (10) are also welded at symmetrical positions of the connecting pipe (2); Wherein, an adjustment component is arranged on the surface of the inner sealing member (3).
2. The inner seal with anti-leakage function according to claim 1, characterized in that: The adjustment assembly comprises a second flange (5), and the second flange (5) is welded to the surface of the inner sealing member (3); Wherein, a first sealing ring (11) is provided on the opposite surfaces of the second flange (5) and the first fixing ring (10), and the first sealing ring (11) is interference-fitted with the first fixing ring (10) and the inner sealing member (3); The surface of the second flange (5) is provided with a plurality of through holes (14); the surface of the inner sealing member (3) is slidably sleeved with a movable ring (13); one end of the movable ring (13) close to the second flange (5) is fixedly connected with a plurality of movable rods (15); and the surface of each movable rod (15) is sleeved with a spring (16); Wherein, a plurality of movable rods (15) are respectively slidably connected to corresponding through holes (14), and second sealing rings (12) are respectively provided at both ends of the inner sealing member (3).
3. The inner seal with anti-leakage function according to claim 2, characterized in that: There are two adjustment components, which are symmetrically arranged at two ends of the inner sealing component (3).
4. The inner seal with anti-leakage function according to claim 1, characterized in that: The inner sealing member (3) is sealed with the methanol synthesis tower body outlet pipe (1) and the connecting pipe (2) respectively through two second sealing rings (12).
5. The inner seal with anti-leakage function according to claim 1, characterized in that: A plurality of first bolt holes (6) are provided on the surface of the first flange (4), and a plurality of second bolt holes (7) are provided on the surface of the second flange (5); The inner walls of each corresponding first bolt hole (6) and second bolt hole (7) of the first flange (4) and the second flange (5) are slidably connected with a bolt (8), and the surface of each bolt (8) is threadedly sleeved with a nut (9).
6. The inner seal with anti-leakage function according to claim 5, characterized in that: The two first flanges (4) and the two second flanges (5) are fixedly connected by a plurality of bolts (8) and nuts (9).