CN210384889U - Chlorosulfonic acid distillation condensing system - Google Patents
Chlorosulfonic acid distillation condensing system Download PDFInfo
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- CN210384889U CN210384889U CN201920955120.5U CN201920955120U CN210384889U CN 210384889 U CN210384889 U CN 210384889U CN 201920955120 U CN201920955120 U CN 201920955120U CN 210384889 U CN210384889 U CN 210384889U
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Abstract
The utility model discloses a chlorosulfonic acid distillation condensing system, which comprises a distillation still, wherein a heating jacket is arranged outside the distillation still, a heat-conducting oil inlet is arranged on one side of the jacket, and a heat-conducting oil outlet is arranged on the other side of the jacket; the top of distillation still is equipped with the gaseous phase export, and the gaseous phase export is connected to chlorosulfonic acid receiving tank through first condenser, and this system still includes second condenser and cooling oil storage tank, and the coolant outlet of first condenser is connected to the cooling oil storage tank through pipeline and second condenser, and the cooling oil storage tank is connected to the coolant inlet of first condenser through the pipeline again. Oil is used as a heating medium in the distillation process of chlorosulfonic acid and a cooling medium for cooling and purifying chlorosulfonic acid at the later stage, and heat exchange oil is also used for cooling the chlorosulfonic acid cooling medium, so that accidents are completely avoided.
Description
Technical Field
The utility model relates to a chlorosulfonic acid production field relates to chlorosulfonic acid distillation condensing system.
Background
Chlorosulfonic acid is a colorless or yellowish liquid with pungent odor, and is mainly used for sulfonation of organic compounds to prepare medicines, dyes, pesticides, detergents, etc.
Chlorosulfonic acid is a strong oxidant, and is decomposed violently when meeting water, generating a large amount of heat and dense smoke, and producing crackling sound, even explosion. When contacting with metal in humid air, it can corrode metal and release hydrogen, and is easy to burn and explode. Contact with combustibles (e.g., benzene) and combustibles (e.g., sugars, cellulose, etc.) can cause violent reactions and even combustion. Has strong corrosiveness.
Since chlorosulfonic acid has strong oxidizing property, it has strong destructive power to equipment, and is easy to leak. In the distillation and purification process of chlorosulfonic acid, when the vaporized chlorosulfonic acid is collected by cooling condensation, if cooling water is used as a cooling medium for cooling, once leakage occurs in heat exchange equipment, the cooling water is contacted with the chlorosulfonic acid, and very serious accidents can be caused.
Disclosure of Invention
The utility model provides a chlorosulfonic acid distillation condensing system adopts oil as the heating medium and the purified coolant of later stage chlorosulfonic acid cooling among the chlorosulfonic acid distillation process, and the heat transfer oil has also been adopted in chlorosulfonic acid coolant's cooling moreover, has avoided the emergence of accident completely.
The utility model adopts the technical scheme that the chlorosulfonic acid distillation and condensation system comprises a distillation still, a heating jacket is arranged outside the distillation still, a heat conduction oil inlet is arranged on one side of the jacket, and a heat conduction oil outlet is arranged on the other side of the jacket; the top of distillation still is equipped with the gaseous phase export, and the gaseous phase export is connected to chlorosulfonic acid receiving tank through first condenser, and this system still includes second condenser and cooling oil storage tank, and the coolant outlet of first condenser is connected to the cooling oil storage tank through pipeline and second condenser, and the cooling oil storage tank is connected to the coolant inlet of first condenser through the pipeline again.
Furthermore, a circulation loop is formed between the heating oil tank and the heating jacket of the distillation still, and an oil pump is further arranged on a pipeline between the discharge port and the heat conduction oil inlet.
Furthermore, cooling oil is arranged in a cooling medium pipeline of the first condenser, and the cooling medium of the second condenser is circulating water.
Furthermore, the second condenser is formed by connecting more than two condensers in series.
Further, a circulating pump is installed on a pipeline between the cooling oil storage tank and a cooling medium inlet of the first condenser.
Further, the gas phase outlet is also connected to an auxiliary receiving tank through a first condenser, and valves are respectively arranged between the first condenser and the chlorosulfonic acid receiving tank and between the first condenser and the auxiliary receiving tank.
The utility model has the advantages that:
the distillation still is heated by adopting heat conducting oil through the heating jacket, and the electric heater is adopted for heating the heat conducting oil, so that the contact between water and the distillation still is completely avoided, and the contact between the water and equipment in the distillation process is avoided. Heating the materials in the distillation kettle by adopting heat conduction oil, collecting the distilled materials to an auxiliary receiving tank 7, and switching a valve to a chlorosulfonic acid receiving tank 4 to collect the materials when the temperature reaches 151 ℃; until no liquid is distilled out of the distillation kettle.
When chlorosulfonic acid is evaporated and discharged from gas phase outlet, it is cooled into liquid by heat exchange with cooling medium in first condenser, and then fed into chlorosulfonic acid receiving tank for storage. The temperature of the first condenser is increased after heat exchange with a cooling medium, the first condenser is conveyed to a second heat exchanger through a pipeline to perform heat exchange with circulating water for cooling, the circulating water enters a cooling oil storage tank, and cooling oil in the cooling oil storage tank is pumped into the first cooler for circulation again. In the system, oil rather than water is adopted as a heat exchange medium for heating, distilling and cooling chlorosulfonic acid, oil is also adopted for cooling the first condenser and the cooling medium, water is not needed in the whole distilling and cooling process of chlorosulfonic acid, and the system is safer.
Drawings
Fig. 1 is a schematic structural diagram of the device of the present invention.
Detailed Description
The invention will be further elucidated with reference to the following examples.
As shown in fig. 1, a chlorosulfonic acid distillation and condensation system comprises a distillation still 1, a heating jacket 12 is arranged on the outer side of the distillation still 1, a heat-conducting oil inlet 11 is arranged on one side of the jacket, and a heat-conducting oil outlet 13 is arranged on the other side of the jacket, the system also comprises a heating oil tank 2, a heater is arranged in the heating oil tank 2, a discharge port 21 of the heating oil tank 2 is communicated with the heat-conducting oil inlet 11, and the heat-conducting oil outlet 13 is communicated with a return port 22 of the; the top of the distillation still 1 is provided with a gas phase outlet 14, the gas phase outlet 14 is connected to a chlorosulfonic acid receiving tank 4 through a first condenser 3, the system further comprises a second condenser 5 and a cooling oil storage tank 6, a cooling medium outlet 31 of the first condenser 3 is connected to the cooling oil storage tank 6 through a pipeline and the second condenser 5, and the cooling oil storage tank 6 is connected to a cooling medium inlet 32 of the first condenser 3 through a pipeline.
Preferably, a circulation loop is formed between the heating oil tank 2 and the heating jacket 12 of the distillation still, and an oil pump is further arranged on a pipeline between the discharge port 21 and the conduction oil inlet 11. The heater in the heating oil tank is preferably an electric heater.
Preferably, the cooling medium pipeline of the first condenser 3 is cooling oil, and the cooling medium pipeline of the second condenser 5 is circulating water. The cooling oil in the first condenser is adopted to exchange heat with the chlorosulfonic acid, so that leakage accidents during water heat exchange are avoided.
Preferably, the second condenser 5 is formed by connecting more than two condensers in series, and cooling oil is condensed for multiple times to improve the cooling effect.
Preferably, a circulation pump is installed in a pipe between the cooling oil reservoir 6 and the cooling medium inlet 32 of the first condenser 3. Furthermore, an oil-water leakage detection sensor can be arranged on a cooling medium pipeline of the first condenser 3, and once moisture is found in the cooling medium, the cooling medium is treated and then used, so that accidents are avoided.
Further, the gas phase outlet 14 is also connected to an auxiliary receiving tank 7 through a first condenser 3, and valves are respectively arranged between the first condenser and the chlorosulfonic acid receiving tank 4 and between the first condenser and the auxiliary receiving tank 7. The method is used for collecting non-chlorosulfonic acid condensate in the distillation process.
During the specific production, oil in the heating oil tank is heated, then the oil is sent into a heating jacket of a distillation still to heat the distillation still, chlorosulfonic acid is discharged through a gas phase outlet after being evaporated, and the chlorosulfonic acid is condensed into liquid through heat exchange with cooling oil in a first heat exchanger and enters a chlorosulfonic acid receiving tank for storage. And the temperature of the cooling oil in the first heat exchanger is increased after the heat exchange with the chlorosulfonic acid gas, the cooling oil enters the second heat exchanger to exchange heat with circulating water, and the cooling oil enters the cooling oil storage tank after being cooled again and can be used as a heat exchange medium in the first heat exchanger again.
Claims (6)
1. A chlorosulfonic acid distillation and condensation system comprises a distillation kettle (1), and is characterized in that: the system comprises a distillation kettle (1), a heating jacket (12) is arranged on the outer side of the distillation kettle (1), a heat conduction oil inlet (11) is formed in one side of the jacket, a heat conduction oil outlet (13) is formed in the other side of the jacket, a heater is arranged in the heating oil tank (2), a discharge hole (21) of the heating oil tank (2) is communicated with the heat conduction oil inlet (11), and the heat conduction oil outlet (13) is communicated with a return hole (22) of the heating oil tank (2); the top of stills (1) is equipped with gaseous phase export (14), and gaseous phase export (14) are connected to chlorosulfonic acid receiving tank (4) through first condenser (3), and this system still includes second condenser (5) and cooling oil storage tank (6), and cooling medium export (31) of first condenser (3) are connected to cooling oil storage tank (6) through pipeline and second condenser (5), and cooling oil storage tank (6) are connected to cooling medium entry (32) of first condenser (3) through the pipeline again.
2. The system of claim 1, wherein: a circulation loop is formed between the heating oil tank (2) and the heating jacket (12) of the distillation kettle, and an oil pump is further arranged on a pipeline between the discharge port (21) and the heat conduction oil inlet (11).
3. The system of claim 1, wherein: the cooling medium pipeline of the first condenser (3) is cooling oil, and the cooling medium pipeline of the second condenser (5) is circulating water.
4. The system of claim 3, wherein: the second condenser (5) is formed by connecting more than two condensers in series.
5. The system of claim 1, wherein: and a circulating pump is arranged on a pipeline between the cooling oil storage tank (6) and the cooling medium inlet (32) of the first condenser (3).
6. The system of claim 1, wherein: the gas phase outlet (14) is also connected to an auxiliary receiving tank (7) through a first condenser (3), and valves are respectively arranged between the first condenser and the chlorosulfonic acid receiving tank (4) and between the first condenser and the auxiliary receiving tank (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920955120.5U CN210384889U (en) | 2019-06-24 | 2019-06-24 | Chlorosulfonic acid distillation condensing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920955120.5U CN210384889U (en) | 2019-06-24 | 2019-06-24 | Chlorosulfonic acid distillation condensing system |
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| CN210384889U true CN210384889U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920955120.5U Active CN210384889U (en) | 2019-06-24 | 2019-06-24 | Chlorosulfonic acid distillation condensing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111721739A (en) * | 2020-05-21 | 2020-09-29 | 中国地质科学院水文地质环境地质研究所 | Oil shale pyrolysis gas analysis device |
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2019
- 2019-06-24 CN CN201920955120.5U patent/CN210384889U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111721739A (en) * | 2020-05-21 | 2020-09-29 | 中国地质科学院水文地质环境地质研究所 | Oil shale pyrolysis gas analysis device |
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