CN212610438U - Tar distillation heat transfer device - Google Patents
Tar distillation heat transfer device Download PDFInfo
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- CN212610438U CN212610438U CN202020924778.2U CN202020924778U CN212610438U CN 212610438 U CN212610438 U CN 212610438U CN 202020924778 U CN202020924778 U CN 202020924778U CN 212610438 U CN212610438 U CN 212610438U
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- tar
- anthracene oil
- heat exchanger
- pipeline
- tower
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Abstract
The utility model relates to a tar distillation heat exchange device, belonging to the technical field of chemical energy utilization; the problem of utilization of anthracene oil fraction energy in a fraction tower is solved; the technical scheme is as follows: the raw material tar pipeline is connected with a tar inlet of an anthracene oil heat exchanger through a raw material tar pump, a tar outlet of the anthracene oil heat exchanger is connected with a tar inlet of a tri-anthracene oil heat exchanger, and a tar outlet of the tri-anthracene oil heat exchanger is connected with a dehydration tower; the heat exchange medium inlet of the first anthracene oil heat exchanger is connected with the first anthracene oil outlet of the fractionating tower, and the heat exchange medium inlet of the third anthracene oil heat exchanger is connected with the third anthracene oil outlet of the fractionating tower; the utility model provides a problem of a fractionating tower siding anthracene oil fraction waste heat waste among the tar distillation system, improved and optimized tar distillation heat transfer system, reduced coal gas unit consumption simultaneously.
Description
Technical Field
The utility model belongs to the technical field of chemical industry energy utilization, specifically be a tar distillation heat transfer device.
Background
Coal tar distillation is a process of separating each component into fractions enriched in certain compounds according to different boiling points of each component in the coal tar. Generally divided into six fractions of light oil, phenol oil, tar, wash oil, anthracene oil and asphalt: it includes the steps of slag removal, quality homogenization, dehydration, desalination, distillation and the like. The fraction tower produces naphthalene oil, wash oil and anthracene oil fractions. In the traditional tar distillation system, anthracene oil fraction at the side line of the fractionating tower is directly cooled by water after being extracted, and the temperature is not well controlled, so that the energy waste is serious.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides a tar distillation heat transfer device, solves the problem of distillate tower anthracene oil fraction energy utilization.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
A tar distillation heat exchange device comprises a dehydration tower, a fraction tower, an anthracene oil heat exchanger, a anthracene oil heat exchanger and a raw material tar pump; the raw material tar pump is connected with a raw material tar pipeline, the raw material tar pump is connected with a tar inlet of an anthracene oil heat exchanger through a first pipeline, a tar outlet of the anthracene oil heat exchanger is connected with a tar inlet of a anthracene oil heat exchanger, and a tar outlet of the anthracene oil heat exchanger is connected with a dehydration tower; and the heat exchange medium inlet of the anthracene oil heat exchanger is connected with the anthracene oil outlet of the fractionating tower through a second pipeline, and the heat exchange medium inlet of the anthracene oil heat exchanger is connected with the anthracene oil outlet of the fractionating tower through a third pipeline.
Furthermore, a heat exchange medium outlet of the three-anthracene oil heat exchanger is connected to the reflux tank through a fourth pipeline.
Furthermore, the heat exchange medium outlet of the anthracene oil heat exchanger is connected to the storage tank through a fifth pipeline.
Furthermore, the first pipeline, the second pipeline and the third pipeline are provided with regulating valves.
The utility model discloses produced beneficial effect does for prior art.
The utility model discloses with raw materials tar earlier with an anthracene oil fraction heat transfer after, with the top of the tower gaseous phase heat transfer of fraction again, get into the dehydration tower, the temperature has improved about 10 ℃, advances the tower temperature height, has reduced dehydration tower cauldron heat load, has practiced thrift coal gas. The problem of waste heat of anthracene oil fraction at the side line of a distillation tower in a tar distillation system is solved, a tar distillation heat exchange system is improved and optimized, and the unit consumption of coal gas is reduced.
Drawings
FIG. 1 is a schematic structural diagram of the industrial tar distillation heat exchange device of the present invention.
Wherein, 1 is the dehydration tower, 2 is the fractionating tower, 3 is an anthracene oil heat exchanger, 4 is three anthracene oil heat exchangers, 5 is raw materials tar pump, 6 is the raw materials tar pipeline, 7 is first pipeline, 8 is the second pipeline, 9 is the third pipeline, 10 is the fourth pipeline, 11 is the fifth pipeline, 12 is the governing valve.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in fig. 1, the tar distillation heat exchange device comprises a dehydrating tower 1, a distillation tower 2, an anthracene oil heat exchanger 3, a anthracene oil heat exchanger 4 and a raw material tar pump 5; the raw material tar pump 5 is connected with a raw material tar pipeline 6, the raw material tar pump 5 is connected with a tar inlet of an anthracene oil heat exchanger 3 through a first pipeline 7, a tar outlet of the anthracene oil heat exchanger 3 is connected with a tar inlet of a anthracene oil heat exchanger 4, and a tar outlet of the anthracene oil heat exchanger 4 is connected with the dehydration tower 1; the heat exchange medium inlet of the first anthracene oil heat exchanger 3 is connected with the first anthracene oil outlet of the fractionating tower 2 through the second pipeline 8, and the heat exchange medium inlet of the third anthracene oil heat exchanger 4 is connected with the third anthracene oil outlet of the fractionating tower 2 through the third pipeline 9. The heat exchange medium outlet of the three-anthracene oil heat exchanger 4 is connected to the reflux tank through a fourth pipeline 10. The outlet of the heat exchange medium of an anthracene oil heat exchanger 3 is connected to the storage tank through a fifth pipeline 11. The first, second and third pipelines 7, 8, 9 and the other pipelines are all provided with regulating valves 12.
The specific working process of the device is as follows: an anthracene oil discharged from the fractionating tower 2 enters the anthracene oil heat exchanger 3 as a heat exchange medium of the anthracene oil heat exchanger 3 to exchange heat with the entering raw material tar, a anthracene oil discharged from the top of the fractionating tower 2 enters the anthracene oil heat exchanger 4 as a heat exchange medium of the anthracene oil heat exchanger 4 to exchange heat with the raw material tar from the anthracene oil heat exchanger 3, the raw material tar after heat exchange enters the dehydrating tower 1 to be treated, the anthracene oil heat after heat exchange is utilized and then enters the storage tank, and the anthracene oil heat after heat exchange is reused by the raw material tar and then enters the reflux tank.
The device exchanges heat between the raw material tar and anthracene oil fraction, and then exchanges heat with the gas phase at the top of the fraction tower, and the raw material tar enters the dehydration tower, the temperature is increased by about 10 ℃, the temperature of the entering tower is high, the thermal load of the tower kettle of the dehydration tower is reduced, and the coal gas is saved. The problem of waste heat of anthracene oil fraction at the side line of a distillation tower in a tar distillation system is solved, a tar distillation heat exchange system is improved and optimized, and the unit consumption of coal gas is reduced.
The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.
Claims (4)
1. A tar distillation heat exchange device comprises a dehydrating tower (1) and a distillation tower (2), and is characterized by also comprising an anthracene oil heat exchanger (3), a tri-anthracene oil heat exchanger (4) and a raw material tar pump (5); the raw material tar pump (5) is connected with a raw material tar pipeline (6), the raw material tar pump (5) is connected with a tar inlet of an anthracene oil heat exchanger (3) through a first pipeline (7), a tar outlet of the anthracene oil heat exchanger (3) is connected with a tar inlet of a anthracene oil heat exchanger (4), and a tar outlet of the anthracene oil heat exchanger (4) is connected with the dehydration tower (1); the inlet of a heat exchange medium of the anthracene oil heat exchanger (3) is connected with the anthracene oil outlet of the fractionating tower (2) through a second pipeline (8), and the inlet of a heat exchange medium of the anthracene oil heat exchanger (4) is connected with the anthracene oil outlet of the fractionating tower (2) through a third pipeline (9).
2. The tar distillation heat exchange device according to claim 1, wherein the heat exchange medium outlet of the three-anthracene oil heat exchanger (4) is connected to the reflux tank through a fourth pipeline (10).
3. The tar distillation heat exchange device according to claim 1, wherein the heat exchange medium outlet of the anthracene oil heat exchanger (3) is connected to the storage tank through a fifth pipeline (11).
4. The tar distillation heat exchange device according to claim 1, wherein the first pipeline (7), the second pipeline (8) and the third pipeline (9) are provided with regulating valves (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020924778.2U CN212610438U (en) | 2020-05-28 | 2020-05-28 | Tar distillation heat transfer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020924778.2U CN212610438U (en) | 2020-05-28 | 2020-05-28 | Tar distillation heat transfer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212610438U true CN212610438U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020924778.2U Active CN212610438U (en) | 2020-05-28 | 2020-05-28 | Tar distillation heat transfer device |
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| CN (1) | CN212610438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113559541A (en) * | 2021-08-09 | 2021-10-29 | 中冶焦耐(大连)工程技术有限公司 | Process and system for recovering light components in heavy benzene by using waste heat of medium-temperature asphalt |
-
2020
- 2020-05-28 CN CN202020924778.2U patent/CN212610438U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113559541A (en) * | 2021-08-09 | 2021-10-29 | 中冶焦耐(大连)工程技术有限公司 | Process and system for recovering light components in heavy benzene by using waste heat of medium-temperature asphalt |
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