CN219897652U - Steam consumption saving device for ionic liquid desulfurization system - Google Patents
Steam consumption saving device for ionic liquid desulfurization system Download PDFInfo
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- CN219897652U CN219897652U CN202321714103.5U CN202321714103U CN219897652U CN 219897652 U CN219897652 U CN 219897652U CN 202321714103 U CN202321714103 U CN 202321714103U CN 219897652 U CN219897652 U CN 219897652U
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- liquid
- reflux
- reheater
- regeneration
- input port
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 23
- 230000023556 desulfurization Effects 0.000 title claims abstract description 23
- 239000002608 ionic liquid Substances 0.000 title claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 82
- 238000010992 reflux Methods 0.000 claims abstract description 73
- 230000008929 regeneration Effects 0.000 claims abstract description 66
- 238000011069 regeneration method Methods 0.000 claims abstract description 66
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000002253 acid Substances 0.000 claims description 7
- 239000007789 gas Substances 0.000 abstract description 55
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 5
- 239000003546 flue gas Substances 0.000 abstract description 5
- 238000003723 Smelting Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 description 12
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 238000000926 separation method Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000002918 waste heat Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000011829 room temperature ionic liquid solvent Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Abstract
The utility model relates to the technical field of smelting flue gas desulfurization and discloses a device for saving steam consumption of an ionic liquid desulfurization system, which comprises a regeneration tower, a reflux pump, a reflux liquid reheater and a reboiler, wherein a first input port of the reflux liquid reheater is connected with an output port of the reflux pump, a second input port of the reflux liquid reheater is connected with a steam condensate water output port of the reboiler, a reflux liquid output port of the reflux liquid reheater is connected with an input port of the regeneration tower, a condensate water output port of the reflux liquid reheater is communicated with the outside, and the device also comprises a regeneration gas condenser and a regeneration gas separator. The utility model has the effects of saving steam, reducing cost and protecting environment.
Description
Technical Field
The utility model relates to the technical field of smelting flue gas desulfurization chemical industry, in particular to a device for saving steam consumption of an ionic liquid desulfurization system.
Background
The room temperature ionic liquid is a molten salt system which is formed by specific organic positive ions and inorganic negative ions and is in a liquid state at room temperature or near room temperature. It assumes a liquid state compared to a solid material; it is in turn in an ionic state, compared to liquid materials in the traditional sense. Therefore, the ionic liquid has unique physical and chemical properties and unique functions.
Aiming at low-concentration sulfur dioxide smelting flue gas, the concentration of sulfur dioxide is generally 0.1-4%, and the desulfurization is widely performed by adopting an ionic liquid desulfurization technology, the technology is characterized by large energy consumption, steam consumption and the problem that how to save steam consumption is a necessary problem for smelting enterprises with limited steam yield if the ionic liquid desulfurization technology is adopted.
Disclosure of Invention
The utility model aims to provide a device for saving steam consumption of an ionic liquid desulfurization system, which has the effects of saving steam, reducing cost and protecting environment.
The technical aim of the utility model is realized by the following technical scheme: the device for saving steam consumption of the ionic liquid desulfurization system comprises a regeneration tower, a reflux pump, a reflux liquid reheater and a reboiler, wherein a first input port of the reflux liquid reheater is connected with an output port of the reflux pump, a second input port of the reflux liquid reheater is connected with a steam condensate water output port of the reboiler, a reflux liquid output port of the reflux liquid reheater is connected with an input port of the regeneration tower, and a condensate water output port of the reflux liquid reheater is communicated with the outside;
the reflux liquid is arranged in the heater and used for exchanging heat between the steam condensate water from the reboiler and the reflux liquid from the reflux pump.
Through adopting above-mentioned technical scheme, the reflux pump sends the reflux liquid into the reflux liquid re-heater, and the steam condensate in the reboiler is also sent into the reflux liquid re-heater in, and the reflux liquid re-heater can carry out heat transfer with the reflux liquid around 40 ℃ and the steam condensate around 110 ℃, gets into the regeneration tower after the temperature of reflux liquid is raised to 100 ℃, thereby effectively utilize the waste heat of steam condensate, save steam.
The utility model is further provided with: the reboiler is provided with a steam input port.
Through adopting above-mentioned technical scheme, the reboiler is through the input external steam of steam input port, utilizes the high Wen Jiang of external steam ion liquid vaporization in the regeneration tower, accomplishes desulfurization work.
The utility model is further provided with: and the ion liquid output port of the regeneration tower is connected with the ion liquid input port of the reboiler.
By adopting the technical scheme, the ionic liquid in the regeneration tower enters the reboiler, and the reboiler utilizes the high temperature in the steam to vaporize the ionic liquid, so that the device is used for desulfurization.
The utility model is further provided with: the device also comprises a regeneration gas condenser and a regeneration gas separator, wherein the input port of the regeneration gas condenser is connected with the regeneration gas outlet at the top of the regeneration tower, and the output port of the regeneration gas condenser is connected with the input port of the regeneration gas separator.
By adopting the technical scheme, the vaporized ionic liquid in the regeneration tower reacts with sulfur dioxide in the flue gas to generate the regenerated gas, the regenerated gas enters the regenerated gas condenser through the regenerated gas outlet of the regeneration tower, is cooled to below 40 ℃ in the regenerated gas condenser, and enters the regeneration gas separator for gas-liquid separation.
The utility model is further provided with: the regenerated gas condenser is provided with a circulating water inlet and a circulating water outlet.
By adopting the technical scheme, the circulating water is used for cooling the regenerated gas in the regenerated gas condenser.
The utility model is further provided with: the gas outlet of the regeneration gas separator is connected with the acid making system, and the liquid outlet of the regeneration gas separator is connected with the inlet of the reflux pump.
By adopting the technical scheme, the regeneration gas separator carries out gas-liquid separation on the cooled regeneration gas, the gas enters the acid making system to realize recycling, and the liquid flows into the reflux pump.
The utility model is further provided with: the reflux liquid reheater adopts a plate heat exchanger.
The beneficial effects of the utility model are as follows:
1. according to the utility model, steam from outside the boundary is indirectly exchanged through a reboiler, ionic liquid of the regeneration tower is heated and evaporated, regenerated gas from the top of the regeneration tower is cooled to below 40 ℃ through a regenerated gas condenser and enters a regeneration gas separator for gas-liquid separation, a gas acid making system is removed, liquid is pumped to a reflux liquid reheater through reflux pump, the temperature is raised to 100 ℃ after heat exchange with steam condensate water, the steam condensate water enters the regeneration tower, the temperature of the steam condensate water is reduced to 50 ℃ after heat exchange with the reflux liquid reheater, and the steam condensate water is removed from the boundary. By adding the reflux liquid reheater, the waste heat of the steam condensate water is recycled, so that the steam consumption is saved, and the cost can be obviously reduced.
2. When the steam condensate water is discharged, the temperature is reduced from 110 ℃ to 50 ℃ through the action of the reflux liquid reheater, and the steam condensate water is discharged, so that the influence of high-temperature condensate water on the environment can be avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the structure of the present utility model.
In the figure, 1, a regeneration tower; 2. a reflux pump; 3. a reflux liquid reheater; 4. a reboiler; 5. a regeneration gas condenser; 6. and regenerating the gas separator.
Detailed Description
The technical scheme of the present utility model will be clearly and completely described in connection with specific embodiments. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
Examples: referring to fig. 1, a device for saving steam consumption of an ionic liquid desulfurization system comprises a regeneration tower 1, a reflux pump 2, a reflux liquid reheater 3 and a reboiler 4, wherein a first input port of the reflux liquid reheater 3 is connected with an output port of the reflux pump 2, a second input port of the reflux liquid reheater 3 is connected with a steam condensate water output port of the reboiler 4, a reflux liquid output port of the reflux liquid reheater 3 is connected with an input port of the regeneration tower 1, and a condensate water output port of the reflux liquid reheater 3 is communicated with the outside; the reflux liquid is in the heater and is used for exchanging heat between the steam condensate water from the reboiler 4 and the reflux liquid from the reflux pump 2.
In a specific implementation, the reflux pump 2 sends reflux liquid into the reflux liquid reheater 3, steam condensate in the reboiler 4 is also sent into the reflux liquid reheater 3, the reflux liquid reheater 3 exchanges heat between reflux liquid with the temperature of about 40 ℃ and steam condensate with the temperature of about 110 ℃, the temperature of the reflux liquid is increased to 100 ℃ and then enters the regeneration tower 1, so that the waste heat of the steam condensate is effectively utilized, and steam is saved.
The reboiler 4 is provided with a steam input port, the reboiler 4 inputs external steam through the steam input port, and the ion liquid in the regeneration tower 1 is vaporized by utilizing the high temperature of the external steam, so that the desulfurization work is completed.
The ion liquid output port of the regeneration tower 1 is connected with the ion liquid input port of the reboiler 4, the ion liquid in the regeneration tower 1 enters the reboiler 4, and the reboiler 4 utilizes the high temperature in the steam to vaporize the ion liquid, so that the ion liquid is used for desulfurization.
The device also comprises a regeneration gas condenser 5 and a regeneration gas separator 6, wherein an input port of the regeneration gas condenser 5 is connected with a regeneration gas outlet at the top of the regeneration tower 1, and an output port of the regeneration gas condenser 5 is connected with an input port of the regeneration gas separator 6.
In the specific implementation, the vaporized ionic liquid in the regeneration tower 1 reacts with sulfur dioxide in the flue gas to generate regenerated gas, the regenerated gas enters the regenerated gas condenser 5 through a regenerated gas outlet of the regeneration tower 1, and the regenerated gas is cooled to below 40 ℃ in the regenerated gas condenser 5 and enters the regenerated gas separator 6 to carry out gas-liquid separation.
The regenerated gas condenser 5 is provided with a circulating water inlet and a circulating water outlet, and the circulating water is used for cooling the regenerated gas in the regenerated gas condenser 5.
The gas output port of the regeneration gas separator 6 is connected with the acid making system, the liquid output port of the regeneration gas separator 6 is connected with the input port of the reflux pump 2, the regeneration gas separator 6 carries out gas-liquid separation on the cooled regeneration gas, the gas enters the acid making system to realize recycling, and the liquid flows into the reflux pump 2.
The reflux liquid reheater 3 adopts a plate heat exchanger.
The working principle of the utility model is as follows:
the steam from outside the boundary indirectly exchanges heat through a reboiler 4, the ion liquid of the regeneration tower 1 is heated and evaporated, the regenerated gas from the top of the regeneration tower 1 is cooled to below 40 ℃ through a regenerated gas condenser 5 and enters a regeneration gas separator 6 for gas-liquid separation, the gas is subjected to an acid making system, the liquid is sent to a reflux liquid reheater 3 through a reflux pump 2, the temperature of the liquid is raised to 100 ℃ after the heat exchange with steam condensate water, the liquid enters the regeneration tower 1, the temperature of the steam condensate water is about 110 ℃, and the temperature of the steam condensate water is reduced to 50 ℃ after the heat exchange with the reflux liquid reheater 3, and then the liquid is subjected to the boundary removal.
Claims (7)
1. The utility model provides a device for ionic liquid desulfurization system saves steam consumption, includes regeneration tower (1), its characterized in that: the device comprises a regeneration tower (1), a reflux pump (2), a reflux liquid reheater (3) and a reboiler (4), wherein a first input port of the reflux liquid reheater (3) is connected with an output port of the reflux pump (2), a second input port of the reflux liquid reheater (3) is connected with a steam condensate water output port of the reboiler (4), a reflux liquid output port of the reflux liquid reheater (3) is connected with the input port of the regeneration tower (1), and a condensate water output port of the reflux liquid reheater (3) is communicated with the outside;
the reflux liquid is arranged in a heater and is used for exchanging heat between steam condensate water from a reboiler (4) and reflux liquid from a reflux pump (2).
2. The apparatus for saving steam consumption for an ionic liquid desulfurization system according to claim 1, wherein: the reboiler (4) is provided with a steam input port.
3. The apparatus for saving steam consumption for an ionic liquid desulfurization system according to claim 1, wherein: the ion liquid output port of the regeneration tower (1) is connected with the ion liquid input port of the reboiler (4).
4. The apparatus for saving steam consumption for an ionic liquid desulfurization system according to claim 1, wherein: the device further comprises a regeneration gas condenser (5) and a regeneration gas separator (6), wherein an input port of the regeneration gas condenser (5) is connected with a regeneration gas outlet at the top of the regeneration tower (1), and an output port of the regeneration gas condenser (5) is connected with an input port of the regeneration gas separator (6).
5. The apparatus for saving steam consumption in an ionic liquid desulfurization system as claimed in claim 4, wherein: the regenerated gas condenser (5) is provided with a circulating water inlet and a circulating water outlet.
6. The apparatus for saving steam consumption in an ionic liquid desulfurization system as claimed in claim 4, wherein: the gas outlet of the regeneration gas separator (6) is connected with an acid making system, and the liquid outlet of the regeneration gas separator (6) is connected with the input port of the reflux pump (2).
7. The apparatus for saving steam consumption for an ionic liquid desulfurization system according to claim 1, wherein: the reflux liquid reheater (3) adopts a plate heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321714103.5U CN219897652U (en) | 2023-06-30 | 2023-06-30 | Steam consumption saving device for ionic liquid desulfurization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321714103.5U CN219897652U (en) | 2023-06-30 | 2023-06-30 | Steam consumption saving device for ionic liquid desulfurization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219897652U true CN219897652U (en) | 2023-10-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321714103.5U Active CN219897652U (en) | 2023-06-30 | 2023-06-30 | Steam consumption saving device for ionic liquid desulfurization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219897652U (en) |
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2023
- 2023-06-30 CN CN202321714103.5U patent/CN219897652U/en active Active
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