CN2358986Y - Vertical internal heat-transfer type catalytic synthetic tower - Google Patents
Vertical internal heat-transfer type catalytic synthetic tower Download PDFInfo
- Publication number
- CN2358986Y CN2358986Y CN 98228404 CN98228404U CN2358986Y CN 2358986 Y CN2358986 Y CN 2358986Y CN 98228404 CN98228404 CN 98228404 CN 98228404 U CN98228404 U CN 98228404U CN 2358986 Y CN2358986 Y CN 2358986Y
- Authority
- CN
- China
- Prior art keywords
- heat
- tower
- exchanger rig
- catalytic bed
- heat transfer
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- Expired - Lifetime
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Abstract
The utility model relates to a vertical internal heat transfer type catalytic synthetic tower. The tower can be filled with catalyst inside and is provided with heat transfer structure inside, wherein, the center of the inner of a tower body is provided with an indirect heat transfer device along an axial direction and is distributed with a first catalyst bed and a second catalyst bed along the axial direction through separate structure, and the first catalyst bed and the second catalyst bed are mutually isolated and are used for filling catalyst. One current passage is respectively reserved between each catalyst bed and the heat transfer device through flow guiding structure. The inlet end of an inner pipe in the heat transfer device is connected with a tower air inlet. The beginning end and the tail end of the first catalyst bed are respectively communicated with the outlet end of the inner pipe of the heat transfer device and an inlet of a pipe outer cavity. The beginning end and the tail end of the second catalyst bed are respectively communicated with an outlet of the pipe outer cavity of the heat transfer device and a tower air outlet.
Description
But the utility model relates to loading catalyst in a kind of tower and be provided with the vertical internal heat exchange type catalysis synthetic tower of heat exchange structure.
Vertical synthetic tower is the synthetic reaction equipment commonly used during many chemical products such as methyl alcohol, synthetic ammonia are produced.Except that having for the catalytic bed of loading catalyst, generally also need be provided with heat-exchanger rig in the structure, the heat that produced in the both extensible course of reaction also helps saving and the comprehensive utilization energy.As present used a kind of single table methyl alcohol synthetic reactor, in tower, be covered with cooling tube vertically equably, catalyst fills in the cooling tube external space.During work, the cold tower gas that advances is moved from bottom to top by each cooling tube, has both taken away the reaction heat of bed between pipe, also makes simultaneously self to be preheated; After going out the cooling tube upper end, from top to down reacts through catalytic bed again, goes out tower at last at the bottom of tower.The synthetic tower of this kind structure is because cooling tube is in the beds that is loaded, and its cold pipe and house steward's welding position is fragile, and difficult the discovery and maintenance after damaging.Simultaneously easily overheated because of cooling tube, material must adopt stainless steel, the cost height.
The purpose of this utility model is at above-mentioned situation, a kind of vertical internal heat exchange type catalysis synthetic tower of new construction is provided, both can have helped obtaining higher reaction synthetic ratio, can reduce requirement again the cooling tube material therefor, improve heat exchanger effectiveness, and be easy to inspection and maintenance equipment.
Vertical internal heat exchange type catalysis synthetic tower of the present utility model, but Ta Nei loading catalyst and be provided with heat exchange structure.Wherein the central authorities in the tower body are provided with an indirect type heat-exchanger rig vertically, and are placed with two first catalytic bed and second catalytic beds of isolating mutually that supply loading catalyst vertically through separation structure.Remain with gas channel through flow-guiding structure respectively between each catalytic bed and said heat-exchanger rig.The interior pipe entrance point of this heat-exchanger rig taps into the tower gas port; The beginning of first catalytic bed, last two ends communicate with interior pipe (the being tube side) port of export of said heat-exchanger rig and the import of pipe outer chamber (being shell side) respectively; The beginning of second catalytic bed, last two ends communicate with the outlet and the exhaust gas mouth of the pipe outer chamber of said heat-exchanger rig respectively.Wherein said indirect type heat-exchanger rig can be the heat exchanger of versions such as shell and tube, coiled, spiral plate type or shell-and-plate commonly used.Be used to make the flow-guiding structure that maintains gas channel between each catalytic bed and said heat-exchanger rig, in adoptable multiple usual way, maintain the airflow clearance mode with employing and be positioned at and be nested with the tube type structure for well outside the heat-exchanger rig, can make the designs simplification compactness.
The utility model synthetic tower promptly can use by single tower in use, also can adopt the mode of Liang Ta, three towers or multitower series connection to use.As required, can also be on this architecture basics, the structure of the adiabatic catalytic bed of the present conventionally form band of stacked at least one deck cold shock structure on first catalytic bed.
Because the utility model synthetic tower has adopted central authorities that the heat exchanger apparatus of form is set, when guaranteeing heat exchanger effectiveness, it is separated with the catalyst in the catalytic bed through flow-guiding structure, not directly contact, make things convenient for the maintenance and the replacing of heat exchanging device effectively, also solved the problem of different differential expansions between heat exchanger, catalytic bed and tower body shell simultaneously.
Below foregoing of the present utility model is described further with example shown in the drawings.But this should be interpreted as that the scope of the above-mentioned theme of the utility model only limits to following example.
Fig. 1: a kind of version of the utility model synthetic tower
Fig. 2: the another kind of version of the utility model synthetic tower
In vertical internal heat exchange type catalysis synthetic tower as shown in Figure 1, the central authorities in tower body 1 are provided with the central array pipe type heat transfer device 8 that has rod-type or board-like baffling structure outside the pipe vertically.Central authorities are provided with a separation structure 3 in the tower, in tower, be separated into to arrange vertically by this separation structure 3 and be used for upper and lower two catalytic beds 2,4 of mutually isolating of loading catalyst, and make each catalytic bed and 8 of said heat-exchanger rigs remain with gas channel through flow-guiding structure 9 respectively.This flow-guiding structure 9 is nested with the tube type structure for being positioned in the mode that maintains airflow clearance outside the heat-exchanger rig.The interior pipe entrance point of this heat-exchanger rig 8 taps into tower gas port 6.The two ends at the whole story up and down of first catalytic bed 2 communicate with the interior pipe port of export 13 of heat-exchanger rig 8 and the entrance point 10 of pipe outer chamber respectively; The two ends at the upper and lower whole story of second catalytic bed 4 communicate with the outlet 7 of pipe outer chamber and the exhaust gas mouth 5 of said heat-exchanger rig 8 respectively.
In synthetic tower shown in Figure 2, basic structure is identical with tower shown in Figure 1, and difference only is to be stacked with the adiabatic catalytic bed 12 of one deck conventionally form band cold shock structure 11 on first catalytic bed 2.
Claims (4)
1. vertical internal heat exchange type catalysis synthetic tower, but the interior loading catalyst of tower also is provided with heat exchange structure, it is characterized in that the central authorities in tower body (1) are provided with an indirect type heat-exchanger rig (8) vertically, and be placed be used for loading catalyst two first catalytic bed (2) and second catalytic beds (4) of isolating mutually vertically through separation structure (3), remain with gas channel through flow-guiding structure (9) respectively between each catalytic bed and said heat-exchanger rig (8), the interior pipe entrance point of said heat-exchanger rig (8) taps into tower gas port (6), the beginning of first catalytic bed (2), the two ends, end communicate the beginning of second catalytic bed (4) with the interior pipe port of export (13) of said heat-exchanger rig (8) and the import (10) of pipe outer chamber respectively, the two ends, end communicate with the outlet (7) and the exhaust gas mouth (5) of the pipe outer chamber of said heat-exchanger rig (8) respectively.
2. catalysis synthetic tower as claimed in claim 1 is characterized in that said heat-exchanger rig (8) is the central array pipe heat exchanger.
3. catalysis synthetic tower as claimed in claim 1 is characterized in that said flow-guiding structure (9) is nested with the tube type structure for being positioned in the mode that maintains airflow clearance outside the heat-exchanger rig (8).
4. as the described catalysis synthetic tower of one of claim 1 to 3, it is characterized in that on said first catalytic bed (2) can the stacked band of one deck at least cold shock structure (11) adiabatic catalytic bed (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228404 CN2358986Y (en) | 1998-03-09 | 1998-03-09 | Vertical internal heat-transfer type catalytic synthetic tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98228404 CN2358986Y (en) | 1998-03-09 | 1998-03-09 | Vertical internal heat-transfer type catalytic synthetic tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2358986Y true CN2358986Y (en) | 2000-01-19 |
Family
ID=33978513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98228404 Expired - Lifetime CN2358986Y (en) | 1998-03-09 | 1998-03-09 | Vertical internal heat-transfer type catalytic synthetic tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2358986Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104955558A (en) * | 2013-01-29 | 2015-09-30 | 卡萨尔公司 | Adiabatic multi-bed catalytic converter with inter-bed cooling |
-
1998
- 1998-03-09 CN CN 98228404 patent/CN2358986Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104955558A (en) * | 2013-01-29 | 2015-09-30 | 卡萨尔公司 | Adiabatic multi-bed catalytic converter with inter-bed cooling |
| CN104955558B (en) * | 2013-01-29 | 2017-05-10 | 卡萨尔公司 | Adiabatic multi-bed catalytic converter with inter-bed cooling |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |