CN212492847U - Multi-pass radial reactor - Google Patents
Multi-pass radial reactor Download PDFInfo
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- CN212492847U CN212492847U CN202022170211.3U CN202022170211U CN212492847U CN 212492847 U CN212492847 U CN 212492847U CN 202022170211 U CN202022170211 U CN 202022170211U CN 212492847 U CN212492847 U CN 212492847U
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Abstract
The utility model relates to a multi-pass radial reactor, which comprises a shell, wherein an upper tube box, a lower tube box and a plurality of heat exchange tubes are arranged in the shell, the upper tube box is fixedly connected at the upper end of the shell, the lower tube box is fixedly connected at the lower end of the shell, and all the heat exchange tubes are distributed between the upper tube box and the lower tube box and are respectively connected with the upper tube box and the lower tube box; the upper pipe box is provided with a refrigerant outlet and a refrigerant inlet; the shell is internally provided with an inner cylinder and an outer cylinder, the inner cylinder is fixedly arranged inside the heat exchange tube bundle, the two ends of the inner cylinder are respectively and fixedly connected with the upper tube box and the lower tube box, the outer cylinder is fixedly arranged outside the heat exchange tube bundle, the upper end of the outer cylinder is provided with a gas baffle ring, and the lower end of the outer cylinder is connected with the shell in a sealing way; the inner cylinder and the outer cylinder are alternately provided with a ventilating section and an airtight section from top to bottom, and the ventilating section of the inner cylinder is staggered with the ventilating section of the outer cylinder; filling a catalyst in the reaction layer space; the shell is provided with a mixed gas inlet and a synthetic gas outlet; a plurality of inner cylinder clapboards are fixedly connected in the inner cylinder.
Description
Technical Field
The utility model relates to a reactor, concretely relates to radial reactor of multipass.
Background
In the field of coal chemical industry in recent years, radial reactors are popular, and are welcomed by the high reaction efficiency and small volume. However, the radial reactors which are put into use at present are all single-pass paths, and in some occasions, the problems that the reaction paths are too short, and the flow speed of synthesis gas is slow, so that the reaction is insufficient exist.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention provides a multi-pass radial reactor for multi-pass radial flow of syngas.
The technical scheme of the utility model:
a multi-pass radial reactor comprises a shell, wherein an upper tube box, a lower tube box and a plurality of heat exchange tubes are arranged in the shell, the upper tube box is fixedly connected to the upper end of the shell, the lower tube box is fixedly connected to the lower end of the shell, all the heat exchange tubes are distributed between the upper tube box and the lower tube box and surround a plurality of circles from inside to outside, the upper end of each heat exchange tube is fixedly connected with the upper tube box and extends into the upper tube box to be communicated with the inner space of the upper tube box, and the lower end of each heat exchange tube is fixedly connected with the lower tube box and extends into the lower tube box to be communicated with the inner space of the lower tube box to jointly form a; the top of the upper pipe box penetrates through the shell to extend out of the shell for a section, a refrigerant outlet is formed in the upper pipe box, the bottom of the lower pipe box penetrates through the shell to extend out of the shell for a section, and a refrigerant inlet is formed in the lower pipe box; the shell is internally provided with an inner tube and an outer tube, the inner tube is fixedly arranged inside the heat exchange tube bundle and covers the inner ring of the heat exchange tube bundle, the two ends of the inner tube are respectively and fixedly connected with an upper tube box and a lower tube box, the outer tube is fixedly arranged outside the heat exchange tube bundle and covers the outer ring of the heat exchange tube bundle, the upper end of the outer tube is provided with an air baffle ring, the lower end of the outer tube is hermetically connected with the shell, the inner space of the shell, namely the shell pass space, is divided into three parts, namely, a tube inner space between the inner tube and the upper tube box and the lower tube box; the inner cylinder and the outer cylinder are alternately provided with a ventilating section and an airtight section from top to bottom; the space of the reaction layer is filled with a catalyst, and the catalyst submerges the heat exchange tube bundle; the top of the shell is provided with a mixed gas inlet, the bottom of the shell is provided with a synthetic gas outlet, and the mixed gas inlet and the synthetic gas outlet are respectively communicated with the space of the reaction layer; a plurality of inner cylinder partition plates are fixedly connected in the inner cylinder to divide the space in the cylinder into an upper small space and a lower small space, and the position of each small space corresponds to the ventilation sections of the inner cylinder and the outer cylinder; the inner cylinder and the outer cylinder are densely distributed with holes to form the ventilation section.
The process flow comprises the following steps:
the synthetic gas enters the space of the reaction layer from the synthetic gas inlet, and downwards enters the catalyst to take a small section of axial path to reach the ventilation section of the inner cylinder, and because the gas has the characteristic of taking the path with the minimum resistance, most of the gas turns and radially enters the space in the cylinder; then, a small section of axial direction is led downwards from the airtight section and then comes to the airtight section, due to the blocking of the partition plate of the inner barrel, airflow turns and turns to pass through the catalyst in the radial direction to enter the outer layer space, the gas reaches the outer layer space and is not passed upwards, the gas can only pass through the airtight section downwards, and after reaching the airtight section, the gas turns and turns to pass through the catalyst in the radial direction and then enters the inner space of the barrel again; the gas flow turns downwards for a section and then enters the catalyst in the radial direction, and then flows downwards for a section in the catalyst and flows away from the synthesis gas outlet in the axial direction; when most of the gas goes out of the S-shaped path, a small amount of gas directly goes axially downwards from the catalyst in the airtight section; the multi-pass radial flow improves the linear velocity and ensures that the reaction is more sufficient;
the other path of fluid is a refrigerant, enters the lower channel box from a refrigerant inlet, then flows upwards from each heat exchange tube, enters the upper channel box, and finally flows away from a refrigerant outlet; the refrigerant exchanges heat with the catalyst outside the heat exchange pipe, and the heat generated by the reaction is continuously taken away, so that the temperature balance of the reaction zone is ensured.
The shell is formed by connecting a shell lower end socket, a shell barrel and a shell upper end socket, and the shell lower end socket, the shell barrel and the shell upper end socket jointly enclose a shell pass space.
The upper tube box is formed by connecting an upper tube box end socket, an upper tube box cylindrical section with a convex shoulder, an upper tube box cylindrical section and an upper special-shaped tube plate, and the upper tube box end socket, the upper tube box cylindrical section with the convex shoulder, the upper tube box cylindrical section and the upper special-shaped tube plate jointly enclose an inner space of the upper tube box.
The lower tube box is formed by connecting a lower tube box end socket, a lower tube box cylinder section with a convex shoulder, a lower tube box cylinder section and a lower special pipe plate, and the lower tube box end socket, the lower tube box cylinder section with the convex shoulder, the lower tube box cylinder section and the lower special pipe plate jointly enclose an inner space of the upper tube box.
The upper special-shaped tube plate and the lower special-shaped tube plate are densely distributed with small holes, the upper end of the heat exchange tube penetrates through the small holes in the upper special-shaped tube plate and is welded with the upper special-shaped tube plate, and the lower end of the heat exchange tube penetrates through the small holes in the lower special-shaped tube plate and is welded with the lower special-shaped tube plate.
Ceramic balls are also filled at the lower part in the reaction layer space, namely the ceramic balls are distributed below the heat exchange tube bundle; the top of the shell is provided with a catalyst loading port, the bottom of the shell is provided with a catalyst unloading port, and the catalyst loading port and the catalyst unloading port are respectively communicated with the space of the reaction layer; and a ceramic ball baffle is arranged on the synthesis gas outlet to shield the synthesis gas outlet, so that the ceramic ball cannot leak.
The reactor also comprises a skirt which is arranged below the shell, supports the shell and is fixedly connected with the shell; and the side surface of the skirt is provided with an inspection hole.
And a manhole of the lower pipe box is arranged at the bottom of the lower pipe box.
The shell lateral wall is provided with the manhole.
An inner access hole is formed in the bottom of the upper tube box and communicated with the inner space of the upper tube box and the inner space of the tube.
And a sewage draining outlet is arranged on the manhole cover of the lower pipe box.
The utility model has the advantages of reasonable design, simple structure, and the synthesis gas multi-pass radial flow is realized, thereby improving the linear velocity and ensuring more sufficient reaction.
Drawings
FIG. 1 is a schematic diagram of a multi-pass radial reactor configuration.
In the figure, a skirt 1, a manhole 2 of a lower pipe box, a refrigerant inlet 3, a head 4 of the lower pipe box, a lower pipe box shell section 5 with a convex shoulder, a synthesis gas outlet 6, a lower shell head 7, a shell cylinder 8, a lower pipe box shell section 9, a manhole 10, a lower abnormal tube plate 11, a seal 12, an inner cylinder 13, an outer cylinder 14, a heat exchange tube 15, an internal access hole 16, an upper shell head 17, a mixed gas inlet 18, an upper pipe box shell section 19 with a convex shoulder, an upper pipe box head 20, a refrigerant outlet 21, a catalyst loading port 22, an upper pipe box shell section 23, a gas baffle ring 24, an upper abnormal tube plate 25, an inner cylinder partition plate 26, a ceramic ball baffle plate 27, a catalyst unloading port 28 and an inspection hole.
Detailed Description
As shown in the figure, the multi-pass radial reactor comprises a shell, wherein an upper tube box, a lower tube box and a plurality of heat exchange tubes 15 are arranged in the shell, the upper tube box is fixedly connected to the upper end of the shell, the lower tube box is fixedly connected to the lower end of the shell, all the heat exchange tubes 15 are distributed between the upper tube box and the lower tube box and form a plurality of circles from inside to outside, the upper end of each heat exchange tube 15 is fixedly connected with the upper tube box and extends into the upper tube box to be communicated with the inner space of the upper tube box, the lower end of each heat exchange tube 15 is fixedly connected with the lower tube box and extends into the lower tube box to be communicated with the inner space of the lower tube box to form; the top of the upper pipe box penetrates through the shell to extend out of the shell for a section, a refrigerant outlet 21 is formed in the upper pipe box, the bottom of the lower pipe box penetrates through the shell to extend out of the shell for a section, and a refrigerant inlet 3 is formed in the lower pipe box; an inner cylinder 13 and an outer cylinder 14 are further arranged in the shell, the inner cylinder 13 is fixedly arranged in the heat exchange tube bundle and covers the inner ring of the heat exchange tube bundle, the two ends of the inner cylinder are fixedly connected with an upper tube box and a lower tube box respectively, the outer cylinder 14 is fixedly arranged outside the heat exchange tube bundle and covers the outer ring of the heat exchange tube bundle, the upper end of the outer cylinder is provided with an air baffle ring 24, the lower end of the outer cylinder is connected with the shell through a seal 12, the inner space of the shell, namely the shell pass space, is divided into three parts, namely, the space in the cylinder between the inner cylinder 13 and the upper tube box and the space in the shell pass; the inner cylinder 13 and the outer cylinder 14 are alternately provided with air permeable sections and air impermeable sections from top to bottom; the space of the reaction layer is filled with a catalyst, and the catalyst submerges the heat exchange tube bundle; the top of the shell is provided with a mixed gas inlet 18, the bottom of the shell is provided with a synthetic gas outlet 6, and the mixed gas inlet 18 and the synthetic gas outlet 6 are respectively communicated with the reaction layer space; an inner cylinder partition plate 26 is fixedly connected in the inner cylinder 13 to divide the space in the cylinder into an upper small space and a lower small space, and the position of each small space corresponds to the ventilation sections of the inner cylinder 13 and the outer cylinder 14; the inner cylinder 13 and the outer cylinder 14 are densely distributed with holes to form the ventilation section; the shell is formed by connecting a shell lower end socket 7, a shell cylinder 8 and a shell upper end socket 17, and the shell lower end socket 7, the shell cylinder 8 and the shell upper end socket 17 enclose the shell pass space; the upper tube box is formed by connecting an upper tube box end socket 19, an upper tube box cylindrical section 20 with a convex shoulder, an upper tube box cylindrical section 23 and an upper special tube plate 25, and the upper tube box end socket 19, the upper tube box cylindrical section 20 with the convex shoulder, the upper tube box cylindrical section 23 and the upper special tube plate 25 jointly enclose an inner space of the upper tube box; the lower tube box is formed by connecting a lower tube box end socket 4, a lower tube box cylindrical shell section 5 with a convex shoulder, a lower tube box cylindrical shell section 9 and a lower special tube plate 11, and the lower tube box end socket 4, the lower tube box cylindrical shell section 5 with the convex shoulder, the lower tube box cylindrical shell section 9 and the lower special tube plate 11 jointly enclose an inner space of the upper tube box; small holes are densely distributed in the upper different tube plate 25 and the lower different tube plate 11, the upper end of the heat exchange tube 15 penetrates through the small hole in the upper different tube plate 25 and is welded with the upper different tube plate 25, and the lower end of the heat exchange tube 15 penetrates through the small hole in the lower different tube plate 11 and is welded with the lower different tube plate 11; ceramic balls are also filled in the reaction layer space and distributed below the heat exchange tube bundle; the top of the shell is provided with a catalyst loading port 22, the bottom of the shell is provided with a catalyst unloading port 28, and the catalyst loading port 22 and the catalyst unloading port 28 are respectively communicated with the space of the reaction layer; a porcelain ball baffle plate 27 is arranged on the synthesis gas outlet 6; the reactor also comprises a skirt 1, wherein the skirt 1 is arranged below the shell, supports the shell and is fixedly connected with the shell; the side surface of the skirt 1 is provided with an inspection hole 29; a lower pipe box manhole 2 is arranged at the bottom of the lower pipe box; a manhole 10 is arranged on the side wall of the shell; an internal access hole 16 is formed in the bottom of the upper tube box, and the internal access hole 16 is communicated with the internal space of the upper tube box and the internal space of the tube; and a sewage draining outlet is arranged on the manhole cover of the lower pipe box.
Because of the limited character expression, there exists an infinite concrete structure objectively, for those skilled in the art, without departing from the principle of the present invention, a plurality of improvements, decorations or changes can be made, and the above technical features can be combined in a proper way; the application of these modifications, variations or combinations, or the application of the concepts and solutions of the present invention in other contexts without modification, is not intended to be considered as a limitation of the present invention.
Claims (9)
1. A multi-pass radial reactor comprises a shell, wherein an upper tube box, a lower tube box and a plurality of heat exchange tubes are arranged in the shell, the upper tube box is fixedly connected to the upper end of the shell, the lower tube box is fixedly connected to the lower end of the shell, all the heat exchange tubes are distributed between the upper tube box and the lower tube box and surround a plurality of circles from inside to outside, the upper end of each heat exchange tube is fixedly connected with the upper tube box and extends into the upper tube box to be communicated with the inner space of the upper tube box, and the lower end of each heat exchange tube is fixedly connected with the lower tube box and extends into the lower tube box to be communicated with the inner space of the lower tube box to jointly form a; the top of the upper pipe box penetrates through the shell to extend out of the shell for a section, a refrigerant outlet is formed in the upper pipe box, the bottom of the lower pipe box penetrates through the shell to extend out of the shell for a section, and a refrigerant inlet is formed in the lower pipe box; the heat exchanger is characterized in that an inner cylinder and an outer cylinder are further arranged in the shell, the inner cylinder is fixedly arranged in the heat exchange tube bundle and covers the inner ring of the heat exchange tube bundle, two ends of the inner cylinder are fixedly connected with the upper tube box and the lower tube box respectively, the outer cylinder is fixedly arranged outside the heat exchange tube bundle and covers the outer ring of the heat exchange tube bundle, the upper end of the outer cylinder is provided with a gas baffle ring, the lower end of the outer cylinder is hermetically connected with the shell, the inner space of the shell, namely the shell side space, is divided into three parts, namely, a tube inner space between the inner cylinder and the upper tube box and the lower tube box; the inner cylinder and the outer cylinder are alternately provided with a ventilating section and an airtight section from top to bottom; the space of the reaction layer is filled with a catalyst, and the catalyst submerges the heat exchange tube bundle; the top of the shell is provided with a mixed gas inlet, the bottom of the shell is provided with a synthetic gas outlet, and the mixed gas inlet and the synthetic gas outlet are respectively communicated with the space of the reaction layer;
a plurality of inner cylinder partition plates are fixedly connected in the inner cylinder to divide the space in the cylinder into an upper small space and a lower small space, and the position of each small space corresponds to the ventilation sections of the inner cylinder and the outer cylinder;
and holes are densely distributed on the ventilating sections of the inner barrel and the outer barrel.
2. The multipass radial reactor of claim 1, wherein the shell is formed by connecting a shell lower head, a shell cylinder and a shell upper head, and the shell lower head, the shell cylinder and the shell upper head jointly enclose the shell-side space.
3. A multi-pass radial reactor according to claim 1,
the upper tube box is formed by connecting an upper tube box end socket, an upper tube box cylindrical section with a convex shoulder, an upper tube box cylindrical section and an upper special tube plate, and the upper tube box end socket, the upper tube box cylindrical section with the convex shoulder, the upper tube box cylindrical section and the upper special tube plate jointly enclose an inner space of the upper tube box;
the lower tube box is formed by connecting a lower tube box end socket, a lower tube box cylinder section with a convex shoulder, a lower tube box cylinder section and a lower special pipe plate, and the lower tube box end socket, the lower tube box cylinder section with the convex shoulder, the lower tube box cylinder section and the lower special pipe plate jointly enclose an inner space of the upper tube box;
the upper special-shaped tube plate and the lower special-shaped tube plate are densely distributed with small holes, the upper end of the heat exchange tube penetrates through the small holes in the upper special-shaped tube plate and is welded with the upper special-shaped tube plate, and the lower end of the heat exchange tube penetrates through the small holes in the lower special-shaped tube plate and is welded with the lower special-shaped tube plate.
4. A multi-pass radial reactor as claimed in claim 1, wherein the lower part of the reaction layer space is further filled with ceramic balls, i.e. the ceramic balls are distributed below the heat exchange tube bundle; the top of the shell is provided with a catalyst loading port, the bottom of the shell is provided with a catalyst unloading port, and the catalyst loading port and the catalyst unloading port are respectively communicated with the space of the reaction layer; and a ceramic ball baffle is arranged on the synthesis gas outlet.
5. A multi-pass radial reactor as claimed in claim 1, further comprising a skirt disposed below the shell, supporting the shell, and fixedly connected to the shell; and the side surface of the skirt is provided with an inspection hole.
6. A multi-pass radial reactor as claimed in claim 1 wherein the bottom of the downcomer is provided with a downcomer manhole.
7. A multi-pass radial reactor as claimed in claim 1 wherein the shell side wall is provided with a manhole.
8. The multipass radial reactor of claim 1, wherein the bottom of the upper tube box is provided with an internal access hole communicating the internal space of the upper tube box with the internal space of the tube.
9. A multi-pass radial reactor as claimed in claim 6 wherein a drain is provided in the manway cover of the downcomer casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022170211.3U CN212492847U (en) | 2020-09-28 | 2020-09-28 | Multi-pass radial reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022170211.3U CN212492847U (en) | 2020-09-28 | 2020-09-28 | Multi-pass radial reactor |
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| CN212492847U true CN212492847U (en) | 2021-02-09 |
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| CN202022170211.3U Active CN212492847U (en) | 2020-09-28 | 2020-09-28 | Multi-pass radial reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112023835A (en) * | 2020-09-28 | 2020-12-04 | 江苏永大化工机械有限公司 | Multi-pass radial reactor |
| CN114749109A (en) * | 2022-02-23 | 2022-07-15 | 南京聚拓化工科技有限公司 | Radial-axial mixed two-section type beam tube water bed reactor |
-
2020
- 2020-09-28 CN CN202022170211.3U patent/CN212492847U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112023835A (en) * | 2020-09-28 | 2020-12-04 | 江苏永大化工机械有限公司 | Multi-pass radial reactor |
| WO2022062129A1 (en) * | 2020-09-28 | 2022-03-31 | 江苏永大化工机械有限公司 | Multi-pass radial reactor |
| CN114749109A (en) * | 2022-02-23 | 2022-07-15 | 南京聚拓化工科技有限公司 | Radial-axial mixed two-section type beam tube water bed reactor |
| CN114749109B (en) * | 2022-02-23 | 2023-09-12 | 南京聚拓化工科技有限公司 | Radial-axial mixed two-section beam tube water bed reactor |
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Address after: 9 Huaxing Road, Jiuhua Town, Rugao City, Nantong City, Jiangsu Province, 226500 Patentee after: Jiangsu Yongda Chemical Machinery Co.,Ltd. Address before: 9 Huaxing Road, Jiuhua Town, Rugao City, Nantong City, Jiangsu Province, 226500 Patentee before: JIANGSU YONGDA CHEMICAL MACHINERY CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |