CN214039078U - Condensing agent cooling device for primary amine production - Google Patents
Condensing agent cooling device for primary amine production Download PDFInfo
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- CN214039078U CN214039078U CN202023346784.3U CN202023346784U CN214039078U CN 214039078 U CN214039078 U CN 214039078U CN 202023346784 U CN202023346784 U CN 202023346784U CN 214039078 U CN214039078 U CN 214039078U
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Abstract
The utility model belongs to the technical field of primary amine production, concretely relates to condensing agent cooling device is used in primary amine production. The primary amine production condensing agent cooling device, including condensing agent backflow pipeline, condensing agent backflow pipeline links to each other with the precooler import, the precooler export links to each other with the heat source import of heat exchanger, the heat source export of heat exchanger links to each other with vapour and liquid separator A's import, vapour and liquid separator A's liquid phase export links to each other with the import of condensing agent storage tank, vapour and liquid separator A's gas phase export links to each other with the import of cryrogenic condenser, the export of cryrogenic condenser links to each other with vapour and liquid separator B's import, vapour and liquid separator B's liquid phase export links to each other with the import of condensing agent storage tank, vapour and liquid separator B's gas phase export passes through the cold source import of draught fan with the heat exchanger and links to each other, the cold source export of heat exchanger links to each other with the import of waste gas recovery jar. The utility model discloses equipment is simple, and is rational in infrastructure, can be fast effectual cools off primary amine production with the condensing agent, and the cooling effect is good.
Description
Technical Field
The utility model belongs to the technical field of primary amine production, concretely relates to condensing agent cooling device is used in primary amine production.
Background
Freon cooling liquid is often adopted as a condensing agent in the primary amine production process, and the condensing agent needs to be cooled and collected again after being used for subsequent use. The device for cooling the condensing agent at present has the problem of poor cooling effect, so that part of Freon exists in a gaseous state, the pressure in the condensing agent storage tank is increased, and the condition of difficult storage is caused.
SUMMERY OF THE UTILITY MODEL
According to the not enough among the prior art above, the utility model provides a condensing agent cooling device is used in primary amine production, equipment is simple, and is rational in infrastructure, can be quick effectual cools off the condensing agent is used in primary amine production, and the cooling effect is good.
The utility model provides a technical scheme that its technical problem adopted is:
the primary amine production condensing agent cooling device, including condensing agent backflow pipeline, condensing agent backflow pipeline links to each other with the precooler import, the precooler export links to each other with the heat source import of heat exchanger, the heat source export of heat exchanger links to each other with vapour and liquid separator A's import, vapour and liquid separator A's liquid phase export links to each other with the import of condensing agent storage tank, vapour and liquid separator A's gas phase export links to each other with the import of cryrogenic condenser, the export of cryrogenic condenser links to each other with vapour and liquid separator B's import, vapour and liquid separator B's liquid phase export links to each other with the import of condensing agent storage tank, vapour and liquid separator B's gas phase export passes through the cold source import of draught fan with the heat exchanger and links to each other, the cold source export of heat exchanger links to each other with the import of waste gas recovery jar.
Wherein:
preferably, a filter is arranged on the condensing agent return line.
Preferably, the precooler is connected with a water inlet pipe and a water outlet pipe respectively.
Preferably, the cryogenic condenser is communicated with a refrigeration system.
The working principle and the process are as follows:
when the device operates, the used Freon cooling liquid enters the precooler through the condensing agent backflow pipeline, and the Freon cooling liquid is filtered by the filter before entering the precooler to remove impurities brought in the cooling process. The precooler cools the freon cooling liquid through the ice salt water. And after primary cooling, the mixture enters a gas-liquid separator A for separation, and the liquid part is sent to a condensing agent storage tank for storage and reuse. The part which is not liquefied is led into a cryogenic condenser for further cooling and liquefaction, and the refrigeration system can supply cryogenic refrigerant for the cryogenic condenser. Preferably, the cryogenic condenser is cooled with liquid nitrogen. And after cooling, the liquid enters a gas-liquid separator B for separation again, and the liquid enters a condensing agent storage tank for storage and reuse. The gas which is not liquefied carries certain cold energy, and enters the waste gas recovery tank after exchanging heat with the precooled cooling liquid, so that harmless treatment is uniformly carried out.
Compared with the prior art, the utility model, following beneficial effect has:
the utility model discloses equipment is simple, and is rational in infrastructure, can be fast effectual cools off primary amine production with the condensing agent, and the cooling effect is good.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
in the figure: 1. a condensing agent return line; 2. a filter; 3. a precooler; 4. a water inlet pipe; 5. a water outlet pipe; 6. a heat exchanger; 7. a gas-liquid separator A; 8. a cryogenic condenser; 9. a refrigeration system; 10. a gas-liquid separator B; 11. an induced draft fan; 12. a condensing agent storage tank; 13. and a waste gas recovery tank.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1
As shown in fig. 1, the condensing agent cooling device for primary amine production comprises a condensing agent reflux pipeline 1, wherein the condensing agent reflux pipeline 1 is connected with an inlet of a precooler 3, an outlet of the precooler 3 is connected with a heat source inlet of a heat exchanger 6, a heat source outlet of the heat exchanger 6 is connected with an inlet of a gas-liquid separator A7, a liquid phase outlet of the gas-liquid separator A7 is connected with an inlet of a condensing agent storage tank 12, a gas phase outlet of the gas-liquid separator A7 is connected with an inlet of a cryogenic condenser 8, an outlet of the cryogenic condenser 8 is connected with an inlet of a gas-liquid separator B10, a liquid phase outlet of the gas-liquid separator B10 is connected with an inlet of the condensing agent storage tank 12, a gas phase outlet of the gas-liquid separator B10 is connected with a cold source inlet of the heat exchanger 6 through an induced draft fan 11, and a cold source outlet of the heat exchanger 6 is connected with an inlet of an exhaust gas recovery tank 13.
The condensing agent return pipeline 1 is provided with a filter 2.
The precooler 3 is connected with a water inlet pipe 4 and a water outlet pipe 5 respectively.
The cryogenic condenser 8 is communicated with a refrigerating system 9.
When the device is operated, the used Freon cooling liquid enters the precooler 3 through the condensing agent return line 1, and the Freon cooling liquid is filtered by the filter 2 before entering the precooler 3 to remove impurities brought in the cooling process. Precooler 3 cools the freon coolant by the brine ice, and performs primary cooling. After primary cooling, the liquid is separated in a gas-liquid separator A7, and the liquid part is sent to a condensing agent storage tank 12 for storage and reuse. The part which is not liquefied is led into the cryogenic condenser 8 for further cooling and liquefaction, and the refrigerating system 9 can supply cryogenic refrigerant for the cryogenic condenser 8. Preferably, the cryogenic condenser 8 is cooled with liquid nitrogen. After cooling, the liquid enters a gas-liquid separator B10 for separation again, and the liquid enters a condensing agent storage tank 12 for storage and reuse. The gas which is not liquefied carries a certain amount of cold energy, and enters the waste gas recovery tank 13 after exchanging heat with the precooled cooling liquid, and is subjected to harmless treatment uniformly.
Those skilled in the art will appreciate that: the terms "a" and "B" are used herein merely to distinguish one element from another in a descriptive sense and are not intended to imply any particular meaning unless otherwise stated.
Based on the technical idea of the utility model, other ordinary technical personnel of this technical field can be right the utility model discloses make a plurality of improvements and decorate, nevertheless all belong to within the rights protection scope of the utility model.
Claims (4)
1. A coolant cooling device for primary amine production is characterized in that: the system comprises a condensing agent backflow pipeline (1), wherein the condensing agent backflow pipeline (1) is connected with an inlet of a precooler (3), an outlet of the precooler (3) is connected with a heat source inlet of a heat exchanger (6), a heat source outlet of the heat exchanger (6) is connected with an inlet of a gas-liquid separator A (7), a liquid phase outlet of the gas-liquid separator A (7) is connected with an inlet of a condensing agent storage tank (12), a gas phase outlet of the gas-liquid separator A (7) is connected with an inlet of a cryogenic condenser (8), an outlet of the cryogenic condenser (8) is connected with an inlet of a gas-liquid separator B (10), a liquid phase outlet of the gas-liquid separator B (10) is connected with an inlet of the condensing agent storage tank (12), a gas phase outlet of the gas-liquid separator B (10) is connected with a cold source inlet of the heat exchanger (6) through an induced draft fan (11), and an outlet of the heat exchanger (6) is connected with an inlet of a waste gas recovery tank (13).
2. The primary amine production refrigerant cooling device as set forth in claim 1, wherein: and a filter (2) is arranged on the condensing agent return pipeline (1).
3. The primary amine production refrigerant cooling device as set forth in claim 1, wherein: the precooler (3) is respectively connected with a water inlet pipe (4) and a water outlet pipe (5).
4. The primary amine production refrigerant cooling device as set forth in claim 1, wherein: the deep cooling condenser (8) is communicated with a refrigerating system (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023346784.3U CN214039078U (en) | 2020-12-31 | 2020-12-31 | Condensing agent cooling device for primary amine production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023346784.3U CN214039078U (en) | 2020-12-31 | 2020-12-31 | Condensing agent cooling device for primary amine production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214039078U true CN214039078U (en) | 2021-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023346784.3U Active CN214039078U (en) | 2020-12-31 | 2020-12-31 | Condensing agent cooling device for primary amine production |
Country Status (1)
| Country | Link |
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| CN (1) | CN214039078U (en) |
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2020
- 2020-12-31 CN CN202023346784.3U patent/CN214039078U/en active Active
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