Seal head of petroleum refining vacuum tower

Abstract

The utility model discloses a petroleum refining vacuum tower end socket, which relates to the technical field of end sockets, and comprises a conical part and a plurality of fan-shaped parts, the fan-shaped parts are arranged at the top end of the outer side of the conical part in a surrounding manner, the top end of the outer side wall of the conical part is provided with a flange with an annular structure, and the flange is provided with a flange. A positioning groove of an arc-shaped structure is formed in the bottom end of the inner side wall of the fan-shaped part, and the positioning groove corresponds to the flange. The conical part and the fan-shaped part are arranged, the conical part and the fan-shaped part form a vacuum tower end socket structure, and the conical part and the fan-shaped part can be freely combined, so that after the end socket is corroded by chemical products due to long-term use, the conical part and the fan-shaped part which are corroded and damaged can be independently replaced, the cost of overall replacement is reduced, and meanwhile, the service life of the end socket is prolonged. Due to the combined design of the conical part and the fan-shaped part, the end socket is convenient to transport and store.

Description

Technical Field

[0001] The utility model relates to the technical field of end caps, in particular to an end cap for a petroleum refining vacuum tower. Background Art

[0002] The vacuum tower is an important equipment in the petroleum refining industry. The head is an indispensable and important component of the vacuum tower equipment in many industries from petrochemicals, atomic energy to food and pharmaceuticals. The head is the end cover on the vacuum tower and is a major pressure-bearing component of the vacuum tower. The quality of the head is directly related to the long-term safe and reliable operation of the vacuum tower.

[0003] For example, a conical head with publication number CN209041542U includes a conical shell, a cylindrical shell and a capping head, and is characterized in that a capping head is arranged on the top of the conical shell, a pressure sensing device is installed on the capping head, a cylindrical shell is welded to the end with a larger opening of the conical shell, the cylindrical shell is fixedly connected to a first connecting device, the first connecting device is connected to a second connecting device, a cylinder is welded and fixed on one side surface of the second connecting device, and a handle is welded and fixed on the surface of the conical shell. This conical head is easy to install and disassemble, a pressure sensor is arranged on the capping head, and a user can understand the pressure inside the container through the pressure sensing device to prevent accidents, and a handle is arranged on the surface of the conical shell, which makes this conical head easy to carry, the bottom of the cylindrical shell is connected to the first connecting device, and the second connecting device is welded and fixed at one end of the cylinder, and the user installs the cylindrical shell on the cylinder through the first connecting device and the second connecting device.

[0004] The head in the above technical solution has some problems in practical application. Due to long-term contact with chemical products during use, the head is prone to local corrosion damage. The solution to this problem is to replace the entire head, which is costly.

[0005] Therefore, it is necessary to invent a petroleum refining vacuum tower head to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a head for a petroleum refining vacuum tower to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a head for a petroleum refining vacuum tower, comprising a conical portion and a fan-shaped portion, wherein a plurality of the fan-shaped portions are provided, and the plurality of fan-shaped portions are arranged around the outer top end of the conical portion, a flange of an annular structure is provided at the top end of the outer wall of the conical portion, a positioning groove of an arc structure is provided at the bottom end of the inner wall of the fan-shaped portion, and the positioning groove corresponds to the flange, a positioning block of an arc structure is fixedly provided at the top end of the positioning groove, and the positioning block corresponds to the outer top end of the conical portion, mounting screw holes are provided at both ends of the upper surface of the positioning block, a connecting seat is provided at the bottom ends of the sides of two adjacent fan-shaped portions close to each other, two screw holes are penetrated through the upper surface of the connecting seat, connecting bolts are penetrated through the insides of the two screw holes, and the bottom ends of the connecting bolts are located inside the mounting screw holes.

[0008] Preferably, a pressure seat is fixedly provided on the inner side wall of the connecting seat, and the pressure seat is arranged above the tapered portion.

[0009] Preferably, a limiting groove is provided at the top end of the outer side wall of the sector-shaped portion, and the cross-section of the limiting groove is arranged to be an isosceles trapezoidal structure.

[0010] Preferably, a positioning ring with an annular structure is arranged inside the limiting groove, and the positioning ring is arranged to be an isosceles trapezoidal structure corresponding to the limiting groove.

[0011] Preferably, both sides of the notch of the limiting groove are arranged as rounded structures.

[0012] Preferably, the bottom end of the conical portion is configured as a hemispherical structure.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model provides a conical part and a fan-shaped part, which form a vacuum tower head structure, and the conical part and the fan-shaped part can be freely combined. When the head is corroded by chemical products due to long-term use, the corroded and damaged conical part and the fan-shaped part can be replaced separately to reduce the cost of overall replacement. At the same time, the combined design of the conical part and the fan-shaped part also facilitates the transportation and storage of the head.

[0015] 2. The utility model provides a conical portion, a flange is provided at the outer top end of the conical portion, and a positioning groove is provided at the inner bottom end of the fan-shaped portion. The flange cooperates with the positioning groove, which can effectively improve the combined stability between the conical portion and the fan-shaped portion. By providing a connecting seat at the inner bottom end of multiple fan-shaped portions, the connecting seat can achieve the connection between two adjacent fan-shaped portions, and the connecting seat can also achieve the compression of the conical portion, thereby effectively improving the structural stability of the head after assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the structure of the tapered portion of the utility model.

[0018] Figure 3 It is a schematic diagram of the fan-shaped part structure of the utility model.

[0019] Figure 4 It is a schematic diagram of the connecting seat structure of the utility model.

[0020] In the figure: 1, conical part; 2, fan-shaped part; 3, flange; 4, positioning groove; 5, positioning block; 6, mounting screw hole; 7, connecting seat; 8, screw hole; 9, connecting bolt; 10, pressure seat; 11, limit groove; 12, positioning ring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-4 A petroleum refining vacuum tower head shown in the figure comprises a conical portion 1 and a fan-shaped portion 2, wherein a plurality of fan-shaped portions 2 are provided, and the plurality of fan-shaped portions 2 are arranged around the outer top end of the conical portion 1, a flange 3 of an annular structure is provided at the top end of the outer wall of the conical portion 1, and a positioning groove 4 of an arc structure is provided at the bottom end of the inner wall of the fan-shaped portion 2, and the positioning groove 4 corresponds to the flange 3, and the positioning groove 4 cooperates with the flange 3 to improve the matching stability between the conical portion 1 and the fan-shaped portion 2;

[0023] Specifically, a positioning block 5 with an arc-shaped structure is fixedly provided at the top of the positioning groove 4, and the positioning block 5 corresponds to the top of the outer wall of the tapered portion 1, and the positioning block 5 is used to assist in positioning the position of the tapered portion 1;

[0024] More specifically, mounting screw holes 6 are provided at both ends of the upper surface of the positioning block 5, and a connecting seat 7 is provided at the bottom ends of the sides of the two adjacent sector-shaped portions 2 close to each other, and two screw holes 8 are penetrated through the upper surface of the connecting seat 7, and connecting bolts 9 are penetrated inside the two screw holes 8, and the bottom ends of the connecting bolts 9 are located inside the mounting screw holes 6, and the connecting seat 7 can fix the position between the two adjacent sector-shaped portions 2 through the connecting bolts 9;

[0025] In addition, a pressure seat 10 is fixedly provided on the inner side wall of the connecting seat 7, and the pressure seat 10 is arranged above the conical portion 1. The connecting seat 7 can press the top of the conical portion 1 through the pressure seat 10 inside the connecting seat 7.

[0026] Moreover, a limiting groove 11 is provided at the top of the outer wall of the fan-shaped portion 2, and the cross-section of the limiting groove 11 is set to an isosceles trapezoidal structure, a positioning ring 12 with an annular structure is provided inside the limiting groove 11, and the positioning ring 12 is set to an isosceles trapezoidal structure corresponding to the limiting groove 11, and both sides of the notch of the limiting groove 11 are set to rounded structures. The design of the rounded structure and the isosceles trapezoidal structure facilitates the coordination between the positioning ring 12 and the limiting groove 11, and the bottom end of the conical portion 1 is set to a hemispherical structure. The setting of the hemispherical structure facilitates the conical portion 1 to guide the chemical fluid.

[0027] Working principle of this utility model:

[0028] When the device is in use, multiple sector parts 2 can be spliced ​​together, the conical part 1 can be installed between the multiple sector parts 2, the conical part 1 and the multiple sector parts 2 can form a head structure, and the head structure can be installed inside the vacuum tower. When the multiple sector parts 2 are spliced ​​and assembled, the sector parts 2 can be placed inside the positioning ring 12, and the limiting groove 11 at the top of the outer side of the sector part 2 is stuck on the outer side of the positioning ring 12, and the multiple sector parts 2 are placed in sequence until the multiple sector parts 2 form a ring structure, and then the conical part 1 is placed between the multiple sector-shaped parts 2, so that the flange 3 on the outside of the conical part 1 is inserted into the positioning groove 4 at the inner bottom end of the multiple sector-shaped parts 2, and the connecting seat 7 is placed at the connection of the multiple sector-shaped parts 2, and the connecting seat 7 is fixed to the inner bottom end of the sector-shaped part 2 by the connecting bolt 9, so that the multiple sector-shaped parts 2 can be assembled, and the connecting seat 7 can press the top end of the conical part 1 through the pressing seat 10 inside the connecting seat 7, so that the position of the conical part 1 is fixed while the multiple sector-shaped parts 2 are assembled, so as to complete the assembly of the head.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A head for a petroleum refining vacuum tower, comprising a conical portion (1) and a fan-shaped portion (2), characterized in that: The fan-shaped parts (2) are provided in plurality, and the plurality of fan-shaped parts (2) are arranged around the outer top end of the conical part (1); the outer wall top end of the conical part (1) is provided with a flange (3) of an annular structure; the inner wall bottom end of the fan-shaped part (2) is provided with a positioning groove (4) of an arc structure, and the positioning groove (4) corresponds to the flange (3); the top end of the positioning groove (4) is fixedly provided with a positioning block (5) of an arc structure, and the positioning block (5) corresponds to the outer wall top end of the conical part (1); mounting screw holes (6) are provided at both ends of the upper surface of the positioning block (5); a connecting seat (7) is provided at the bottom ends of the sides of two adjacent fan-shaped parts (2) close to each other; two screw holes (8) are penetrated through the upper surface of the connecting seat (7); the insides of the two screw holes (8) are penetrated with connecting bolts (9), and the bottom ends of the connecting bolts (9) are located inside the mounting screw holes (6).

2. The oil refining vacuum tower head according to claim 1, characterized in that: A pressure seat (10) is fixedly arranged on the inner side wall of the connecting seat (7), and the pressure seat (10) is arranged above the conical portion (1).

3. The oil refining vacuum tower head according to claim 2, characterized in that: A limiting groove (11) is provided at the top end of the outer wall of the sector-shaped portion (2), and the cross section of the limiting groove (11) is arranged to be an isosceles trapezoidal structure.

4. The oil refining vacuum tower head according to claim 3, characterized in that: A positioning ring (12) of an annular structure is arranged inside the limiting groove (11), and the positioning ring (12) is arranged as an isosceles trapezoidal structure corresponding to the limiting groove (11).

5. The oil refining vacuum tower head according to claim 4, characterized in that: Both sides of the notch of the limiting groove (11) are arranged as rounded structures.

6. The oil refining vacuum tower head according to claim 5, characterized in that: The bottom end of the conical portion (1) is arranged to be a hemispherical structure.

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