A new round block hole type graphite methanol vaporizer sealing structure

Abstract

The utility model relates to the technical field of graphite methanol vaporizer, especially to a new round block hole formula graphite methanol vaporizer sealing structure, its can effectively solve the problem of multiple sealing points and gasket corrosion failure, can better satisfy the use requirement under various temperature and various sealing conditions, guarantees pressure level and sealing effect, is convenient for detection and reduces the leakage risk, including steel cylinder, cylinder flange, lower cover plate, graphite seal head, stud bolt, nut, heat exchange block and sealing assembly, the cylinder flange is installed to steel cylinder end part, and the lower cover plate and cylinder flange are connected through a plurality of stud bolts and nuts between, the graphite seal head is installed to cylinder flange inboard in steel cylinder interior, and the graphite seal head outside is connected with the lower cover plate contact through the sealing assembly.

Description

Technical Field

[0001] This utility model relates to the technical field of graphite methanol vaporizers, and in particular to a novel sealing structure for a circular block perforated graphite methanol vaporizer. Background Technology

[0002] The current industrial environment has placed higher demands on environmental protection, efficiency, and energy conservation. The circular block perforated graphite methanol vaporizer meets the future development direction and requirements of new methanol vaporizers. In particular, a large number of graphite methanol vaporizers are already in use in the chloromethane industry.

[0003] In the chemical production process, equipment sealing and leakage are a key concern. However, current circular block-type graphite methanol vaporizers suffer from several problems: ① numerous sealing points lead to unstable sealing structures; ② methanol, as an organic solvent, easily corrodes rubber gaskets, making the equipment extremely prone to leakage. To address these issues, those skilled in the art have proposed a novel sealing structure for methanol vaporizers. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a novel circular block-hole graphite methanol vaporizer sealing structure that effectively solves the issues of multiple sealing points and gasket corrosion failure, better meets the usage requirements under various temperatures and sealing conditions, ensures pressure resistance and sealing effect, facilitates detection, and reduces leakage risk.

[0005] This utility model discloses a novel circular block-hole graphite methanol vaporizer sealing structure, comprising a steel cylinder, a cylinder flange, a lower cover plate, a graphite head, double-ended bolts, nuts, a heat exchange block, and a sealing assembly. The steel cylinder has a cylinder flange installed at its end, and the lower cover plate and cylinder flange are connected by multiple double-ended bolts and nuts. A graphite head is installed inside the cylinder flange within the steel cylinder, and the outer side of the graphite head is connected to the lower cover plate via the sealing assembly. The sealing assembly effectively solves the problems of multiple sealing points and gasket corrosion failure. The resulting circular block-hole graphite methanol vaporizer has a wider range of applications and can better meet the usage requirements under various temperatures and sealing conditions.

[0006] Preferably, the sealing assembly includes a gasket and an O-ring. The gasket is installed on the inner side of the lower cover plate, and a sealing groove is opened on the outer side of the cylinder flange. The O-ring is located in the sealing groove and is fitted on the outer wall of the graphite head. The double sealing of the gasket and O-ring effectively solves the problem of multiple sealing points and easy leakage. The gasket is a flexible graphite wound PTFE gasket, and the O-ring is a perfluoroether O-ring.

[0007] Preferably, the cylindrical flange is provided with a retaining ring groove, and the movable retaining ring is fitted into the retaining ring groove and can be detached. The right side of the movable retaining ring contacts the O-ring. When using an O-ring seal + flexible graphite wound PTFE gasket + movable retaining ring, the problems of multiple sealing points and gasket corrosion failure can be effectively solved.

[0008] Preferably, a heat exchange block gasket is installed between the heat exchange block and the graphite head; the heat exchange block gasket is a flexible graphite-wound PTFE gasket, which better meets the usage requirements under various temperatures and sealing conditions.

[0009] Preferably, the lower cover plate has a plurality of retaining ring adjustment bolt holes evenly distributed, and an inspection port is provided on the lower cover plate; the plurality of retaining ring adjustment bolt holes facilitate the adjustment of the movable retaining ring, and the inspection port can be used for online monitoring of methanol. Online methanol detection and the movable retaining ring can effectively control the leakage problem caused by gasket corrosion, effectively solving the problem that the equipment is extremely prone to leakage.

[0010] Compared with the prior art, the beneficial effects of this utility model are: the sealing component can effectively solve the problems of multiple sealing points and gasket corrosion failure, and the resulting round block perforated graphite methanol vaporizer has a wider range of applications and can better meet the usage requirements under various temperatures and sealing conditions. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is a structural schematic diagram of the lower cover plate of this utility model;

[0013] Figure 3 This is a partially enlarged structural diagram of part A of this utility model;

[0014] The following are labels in the attached diagram: 1. Steel cylinder; 2. Cylinder flange; 3. Lower cover plate; 4. Graphite head; 5. Double-ended bolt; 6. Nut; 7. Heat exchange block; 8. Sealing gasket; 9. Retaining ring adjusting bolt hole; 10. Inspection port; 11. Movable retaining ring; 12. O-ring; 13. Heat exchange block gasket. Detailed Implementation

[0015] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0016] like Figures 1 to 3As shown, a cylinder flange 2 is installed at the end of the steel cylinder 1. The lower cover plate 3 and the cylinder flange 2 are connected by multiple double-headed bolts 5 and nuts 6. A graphite head 4 is installed inside the cylinder flange 2 inside the steel cylinder 1. A sealing gasket 8 is installed inside the lower cover plate 3. A sealing groove is opened on the outside of the cylinder flange 2. An O-ring 12 is located in the sealing groove and is fitted on the outer wall of the graphite head 4. A retaining ring groove is opened on the cylinder flange 2. A movable retaining ring 11 is fitted in the retaining ring groove and can be detached. The right side of the movable retaining ring 11 contacts the O-ring 12. A heat exchange block gasket 13 is installed between the heat exchange block 7 and the graphite head 4. Multiple retaining ring adjusting bolt holes 9 are evenly opened on the lower cover plate 3, and an inspection port 10 is opened on the lower cover plate 3.

[0017] The use of a double seal of gasket 8 and O-ring 12 effectively solves the problem of multiple sealing points and easy leakage. Gasket 8 is a flexible graphite-wound PTFE gasket, and O-ring 12 is a perfluoroether O-ring. With O-ring sealing ring + flexible graphite-wound PTFE gasket + movable retaining ring 11, the problem of multiple sealing points and gasket corrosion failure can be effectively solved. The heat exchange block gasket 13 is a flexible graphite-wound PTFE gasket, which better meets the usage requirements of various temperatures and sealing conditions. Multiple retaining ring adjustment bolt holes 9 facilitate the adjustment of movable retaining ring 11. Inspection port 10 can be used for online methanol monitoring. Online methanol detection and movable retaining ring 11 can effectively control leakage caused by gasket corrosion, effectively solving the problem that the equipment is extremely prone to leakage.

[0018] like Figures 1 to 3 As shown, this utility model discloses a novel circular block-type graphite methanol vaporizer sealing structure. The cylinder flange 2 is machined with a sealing groove and a retaining ring groove. The size of the sealing groove is designed to ensure that the compression of the sealing ring is within 15%-25%. After machining the sealing groove, the oil, iron filings and other impurities in the sealing groove are blown away. The sealing surface of the lower cover plate 3 is then machined. The graphite end cap 4 is assembled with the steel cylinder 1. The O-ring 12 and the movable retaining ring 11 are installed. Then, the sealing gasket 8 and the lower cover plate 3 are installed. After installation, water is filled and pressure tested. After the pressure test is passed, the cylinder is painted and shipped. The methanol online detection instrument is installed on site.

[0019] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A novel circular block-type graphite methanol vaporizer sealing structure, characterized in that, It includes a steel cylinder (1), a cylinder flange (2), a lower cover plate (3), a graphite head (4), double-ended bolts (5), nuts (6), a heat exchange block (7), and a sealing assembly. The steel cylinder (1) is equipped with a cylinder flange (2) at its end. The lower cover plate (3) and the cylinder flange (2) are connected by multiple double-ended bolts (5) and nuts (6). The inside of the steel cylinder (1) is equipped with a graphite head (4) on the inner side of the cylinder flange (2). The outer side of the graphite head (4) is connected to the lower cover plate (3) through the sealing assembly.

2. The novel circular block perforated graphite methanol vaporizer sealing structure as described in claim 1, characterized in that, The sealing assembly includes a gasket (8) and an O-ring (12). The gasket (8) is installed inside the lower cover plate (3). A sealing groove is provided on the outside of the cylinder flange (2). The O-ring (12) is located in the sealing groove and is fitted on the outer wall of the graphite head (4).

3. The novel circular block perforated graphite methanol vaporizer sealing structure as described in claim 1, characterized in that, The cylindrical flange (2) is provided with a retaining ring groove, and the movable retaining ring (11) is fitted in the retaining ring groove and can be detached. The right side of the movable retaining ring (11) is in contact with the O-ring (12).

4. The novel circular block perforated graphite methanol vaporizer sealing structure as described in claim 1, characterized in that, A heat exchange block gasket (13) is installed between the heat exchange block (7) and the graphite head (4).

5. The novel circular block perforated graphite methanol vaporizer sealing structure as described in claim 1, characterized in that, The lower cover plate (3) is provided with a plurality of retaining ring adjusting bolt holes (9) evenly distributed, and the lower cover plate (3) is provided with an inspection port (10).

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