CN220034052U - A dry suction device suitable for large sulfuric acid systems - Google Patents
A dry suction device suitable for large sulfuric acid systems Download PDFInfo
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- CN220034052U CN220034052U CN202320191021.0U CN202320191021U CN220034052U CN 220034052 U CN220034052 U CN 220034052U CN 202320191021 U CN202320191021 U CN 202320191021U CN 220034052 U CN220034052 U CN 220034052U
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Abstract
本实用新型公开了一种适用于大型硫酸系统的干吸装置，包括干燥塔、一吸塔、二吸塔、干燥循环槽、一吸循环槽及二吸循环槽，所述干燥塔的出口连通于干燥循环槽内，所述一吸塔的出口连通于一吸循环槽内，所述二吸塔的出口连通于二吸循环槽内，所述一吸循环槽通过第二管道连通于一吸塔上，其上安装有一吸循环泵，所述干燥循环槽通过第一管道连接于所述第二管道上，所述第一管道上安装有干燥循环泵，且其上连接有连通于所述干燥塔上的第一循环管道。
The utility model discloses a dry suction device suitable for large-scale sulfuric acid systems, which includes a drying tower, a first suction tower, a second suction tower, a drying circulation tank, a first suction circulation tank and a second suction circulation tank. The outlet of the drying tower is connected In the drying circulation tank, the outlet of the first suction tower is connected to the first suction circulation tank, the outlet of the second suction tower is connected to the second suction circulation tank, and the first suction circulation tank is connected to the first suction circulation tank through the second pipe. On the tower, a suction circulation pump is installed on it, the drying circulation tank is connected to the second pipe through the first pipe, the drying circulation pump is installed on the first pipe, and it is connected to the The first circulation pipe on the drying tower.
Description
Technical Field
The utility model belongs to the technical field of sulfuric acid production devices, and particularly relates to a dry suction device suitable for a large sulfuric acid system.
Background
In the sulfuric acid production system, about 95% of the SO generated by the conversion process 3 Is absorbed by circulating acid in a first absorption tower, about 5 percent of SO 3 The SO to be absorbed is absorbed by the circulating acid of the two absorption towers 3 The flow of the concentrated sulfuric acid absorption pump is directly determined, so that the flow required by the primary absorption circulating pump is far greater than that required by the secondary absorption circulating pump.
As shown in fig. 2, in the dry suction process, a suction circulation pump is generally adopted to mix acid into a drying circulation tank so as to maintain the stability of the concentration of the drying circulation acid; and (3) a primary absorption circulating pump is adopted to carry acid to the secondary absorption circulating tank, and concentrated sulfuric acid newly generated by the primary absorption tower is output to maintain the liquid level of the primary absorption circulating tank stable.
However, it is obvious that the flow rate of the primary suction circulating pump is far greater than that of the drying circulating pump and the secondary suction circulating pump after combining the above factors, the problem of stability reduction caused by overlarge flow rate of the primary suction circulating pump is directly easy to occur in a large-scale sulfuric acid system, and even under certain working conditions, the situation that the flow rate of the primary suction circulating pump exceeds the manufacturing capacity of the concentrated sulfuric acid pump with the maximum flow rate of equipment manufacturers is required, so that the reliability of system operation is reduced.
Disclosure of Invention
The utility model provides a dry suction device which is suitable for a large-scale sulfuric acid system, ensures stable system operation and reduces the flow requirement on a circulating pump in order to overcome the defects of the prior art.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a dry device that inhales suitable for large-scale sulfuric acid system, includes drying tower, a tower, two absorption towers, drying circulation groove, one inhale circulation groove and two inhale circulation groove, the export intercommunication of drying tower is in drying circulation groove, the export intercommunication of a tower is in one inhale circulation groove, the export intercommunication of two absorption towers is in two inhale circulation groove, one inhale the circulation groove through the second pipeline intercommunication on one inhale the tower, install one on it and inhale the circulation pump, drying circulation groove through first pipeline connect in on the second pipeline, install the drying circulation pump on the first pipeline, and be connected with on it communicate in first circulation pipeline on the drying tower.
Preferably, the second absorption circulation tank is communicated with the drying circulation tank through a third pipeline, a second absorption circulation pump is arranged on the third pipeline, and the third pipeline is also connected with a third circulation pipeline communicated with the second absorption tower and an acid production pipe for acid discharge.
Preferably, the first suction circulation tank and the second suction circulation tank are communicated through a communicating pipe.
Preferably, the communicating pipeline is respectively communicated with the first suction tower and the second suction tower through pipeline branches.
The utility model has the technical effects that: the utility model directly strings the acid quantity of the first absorption tower into the first absorption tower by the drying circulating pump so as to increase the total acid quantity of the first absorption tower; and adopt two to inhale the circulation groove and replace one to inhale the circulation groove to the mode of drying circulation groove acid-stringing, promote the acid concentration in the drying circulation groove, bear the flow of acid-stringing to the drying circulation groove originally by one to inhale the circulation pump by two to inhale the circulation pump, effectively reduce one and inhale the required flow size of tower circulation pump to realize reducing one and inhale the required flow size of tower circulation pump's purpose, guarantee that the system operation is stable.
Meanwhile, the first suction circulation tank is communicated with the bottom of the second suction circulation tank, the first suction circulation pump is connected with the concentrated sulfuric acid of the second suction circulation tank in series, and the communicating pipe between the two circulation tanks automatically flows and flows acid in series, so that the first suction circulation tank can use the volume of the second suction circulation tank in the starting and stopping process, the increase of the volume of the first suction circulation tank caused by overlarge acid flow required by the first suction tower is avoided, and the running stability of the system is further ensured.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic diagram of a prior art structure.
The reference numerals of the main technical characteristics in the drawings are as follows: 1. a drying tower; 2. a suction tower; 3. a second absorption tower; 4. a drying circulation tank; 5. a suction circulation tank; 6. a secondary suction circulation tank; 71. an air inlet; 72. a liquid return port; 73. an air outlet; 81. a first pipe; 811. a drying circulation pump; 812. a first circulation pipe; 82. a second pipe; 821. a suction circulation pump; 83. a third conduit; 831. a secondary suction circulation pump; 832. a third circulation pipe; 833. an acid producing tube; 9. and communicating the pipeline.
Detailed Description
The utility model is further illustrated by the following detailed description and the accompanying drawings.
Referring to fig. 1, a dry suction device suitable for a large-scale sulfuric acid system comprises a drying tower 1, a first suction tower 2, a second suction tower 3, a drying circulation tank 4, a first suction circulation tank 5 and a second suction circulation tank 6, wherein an outlet at the bottom of the drying tower 1 is communicated with the drying circulation tank 4, an outlet at the bottom of the first suction tower 2 is communicated with the first suction circulation tank 5, and an outlet at the bottom of the second suction tower 3 is communicated with the second suction circulation tank 6.
Further, the side walls of the drying tower 1, the first suction tower 2 and the second suction tower 3 close to the bottom are provided with air inlets 71, the side walls of the drying tower 1, the first suction tower 2 and the second suction tower 3 close to the top are provided with liquid return ports 72, and the tops of the drying tower 1, the first suction tower 2 and the second suction tower 3 are provided with air outlets 73.
Specifically, the first suction circulation tank 5 is connected to the liquid return port 72 of the first suction tower 2 through a second pipe 82, a suction circulation pump 821 is installed at the inlet end of the second pipe 82, the drying circulation tank 4 is connected to the second pipe 82 through a first pipe 81, a drying circulation pump 811 is installed at the inlet end of the first pipe 81, and a first circulation pipe 812 connected to the liquid return port 72 of the drying tower 1 is connected thereto.
Further, the second suction circulation tank 6 is communicated with the drying circulation tank 4 through a third pipeline 83, a second suction circulation pump 831 is installed on the inlet end of the third pipeline 83, and a third circulation pipeline 832 and an acid generating pipe 833 which are communicated with the acid return port of the second suction tower 3 are also connected thereto.
Further, the primary suction circulation tank 5 and the secondary suction circulation tank 6 are communicated with the bottom of the communicating pipeline 9, and the communicating pipeline 9 is respectively communicated with the primary suction tower 2 and the secondary suction tower 3 through pipeline branches.
With the above arrangement, the primary suction circulation pump 821 does not need to bear the acid amount of the primary suction circulation tank 5 to the drying circulation tank 4 as in the conventional arrangement, nor does it need to bear the primary suction circulationAcid amount of the tank 5 to the two-suction circulation tank 6. Instead, because the drying circulation tank 4 is connected with the acid absorption amount directly connected with the acid absorption pipe of the absorption tower 2, SO is absorbed in the absorption tower 2 3 Under the condition that the required concentrated sulfuric acid amount is certain, the absorption of SO by the first absorption tower 2 which is originally born by the first absorption circulating pump 821 is reduced 3 The amount of concentrated sulfuric acid required.
The above embodiments are merely examples of the present utility model, but the present utility model is not limited thereto, and the present utility model may be applied to similar products, and any person skilled in the art who is skilled in the field of the present utility model shall make changes or modifications within the scope of the present utility model.
Claims (2)
1. The utility model provides a dry device of inhaling suitable for large-scale sulfuric acid system, includes drying tower (1), one inhale tower (2), two inhale tower (3), drying circulation groove (4), one inhale circulation groove (5) and two inhale circulation groove (6), the export intercommunication of drying tower (1) is in drying circulation groove (4), the export intercommunication of one inhale tower (2) is in one inhale circulation groove (5), the export intercommunication of two inhale tower (3) is in two inhale circulation groove (6), its characterized in that:
the first suction circulation tank (5) is communicated with a suction tower (2) through a second pipeline (82), a suction circulation pump (821) is installed on the second pipeline (82), the drying circulation tank (4) is connected to the second pipeline (82) through a first pipeline (81), a drying circulation pump (811) is installed on the first pipeline (81), and a first circulation pipeline (812) communicated with the drying tower (1) is connected to the first pipeline;
the secondary absorption circulation tank (6) is communicated with the drying circulation tank (4) through a third pipeline (83), a secondary absorption circulation pump (831) is arranged on the third pipeline (83), and a third circulation pipeline (832) communicated with the secondary absorption tower (3) and an acid production pipe (833) for acid production are also connected on the secondary absorption circulation tank;
the primary suction circulation groove (5) is communicated with the secondary suction circulation groove (6) through the bottom of the communicating pipeline (9).
2. A dry suction apparatus suitable for use in a large sulfuric acid system as set forth in claim 1, wherein: the communicating pipeline (9) is respectively communicated with the first suction tower (2) and the second suction tower (3) through pipeline branches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320191021.0U CN220034052U (en) | 2023-02-13 | 2023-02-13 | A dry suction device suitable for large sulfuric acid systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320191021.0U CN220034052U (en) | 2023-02-13 | 2023-02-13 | A dry suction device suitable for large sulfuric acid systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220034052U true CN220034052U (en) | 2023-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320191021.0U Active CN220034052U (en) | 2023-02-13 | 2023-02-13 | A dry suction device suitable for large sulfuric acid systems |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220034052U (en) |
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2023
- 2023-02-13 CN CN202320191021.0U patent/CN220034052U/en active Active
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