CN211215492U - Waste heat utilization energy-saving consumption-reducing rectifying tower set - Google Patents
Waste heat utilization energy-saving consumption-reducing rectifying tower set Download PDFInfo
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- CN211215492U CN211215492U CN201920907225.3U CN201920907225U CN211215492U CN 211215492 U CN211215492 U CN 211215492U CN 201920907225 U CN201920907225 U CN 201920907225U CN 211215492 U CN211215492 U CN 211215492U
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Abstract
The utility model discloses a waste heat utilization energy saving and consumption reduction rectifying column group, including 1# rectifying column, 1# rectifying column cauldron bottom liquid delivery pump, 2# rectifying column and 2# rectifying column cauldron liquid delivery pump, be equipped with 1# rectifying column cauldron liquid outlet pipeline between 1# rectifying column and the 1# rectifying column cauldron bottom liquid delivery pump, link to each other through 2# rectifying column feed pipe between 1# rectifying column and the 2# rectifying column, be equipped with 2# rectifying column cauldron liquid outlet pipeline between 2# rectifying column and the 2# rectifying column cauldron liquid delivery pump, be equipped with 1# rectifying column feed pipe on the 1# rectifying column, connect on the 1# rectifying column feed pipe and set up 1# rectifying column feed preheater, be equipped with 2# rectifying column cauldron liquid delivery pipe between 2# rectifying column cauldron liquid delivery pump and the 1# rectifying column feed preheater; the utility model has the advantages that: the rectifying tower group can realize multi-stage utilization of energy, improve the utilization rate of waste heat, greatly reduce the use amount of heating media and cooling media and save the energy consumption by 30 percent.
Description
Technical Field
The utility model relates to a chemical production equipment technical field, concretely relates to waste heat utilization energy saving and consumption reduction rectification tower group.
Background
In the production process of petrochemical, fine chemical, medicine and other industries, a multi-component solvent rectification separation and recovery process is often involved, a large amount of heat sources are needed for heating a liquid phase at a tower bottom, a large amount of refrigerants are needed for cooling a gas phase at the top of a tower, and after a primary heat source is used, secondary energy cascade use is rarely carried out, so that the waste of a large amount of energy sources in the rectification recovery process is caused, and the production cost in the production process of an enterprise is overhigh.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem that exists among the prior art, the utility model aims to provide a waste heat utilization energy saving and consumption reduction rectification tower system carries out rational planning through the energy to rectification recovery process, makes the secondary energy carry out cascade use many times, improves the utilization ratio of energy, practices thrift the energy consumption, reduces the manufacturing cost of enterprise.
The technical scheme of the utility model as follows:
a rectifying tower group with energy conservation and consumption reduction by waste heat utilization comprises a No. 1 rectifying tower, a No. 1 rectifying tower bottom liquid delivery pump, a No. 2 rectifying tower and a No. 2 rectifying tower bottom liquid delivery pump, a No. 1 rectifying tower bottom liquid outlet pipeline is arranged between the No. 1 rectifying tower and the No. 1 rectifying tower bottom liquid delivery pump, the No. 1 rectifying tower is connected with the No. 2 rectifying tower through a No. 2 rectifying tower feeding pipeline, a No. 2 rectifying tower kettle liquid outlet pipeline is arranged between the No. 2 rectifying tower and the No. 2 rectifying tower kettle liquid conveying pump, it is characterized in that a No. 1 rectifying tower feeding pipeline is arranged on the No. 1 rectifying tower, a No. 1 rectifying tower feeding preheater is connected and arranged on the No. 1 rectifying tower feeding pipeline, and an outlet pipeline of the 2# rectifying tower kettle liquid conveying pump is arranged between the 2# rectifying tower kettle liquid conveying pump and the 1# rectifying tower feeding preheater, so that the 1# rectifying tower feeding pipeline is preheated.
A waste heat utilization energy saving and consumption reduction rectifying column group, a serial communication port, be equipped with 2# rectifying column feed preheater on the 2# rectifying column feed conduit, be equipped with first circulating line on the 2# rectifying column tower kettle liquid outlet pipe to link to each other with 2# rectifying column lower extreme through first circulating line, be equipped with 2# rectifying column reboiler on the first circulating line, be equipped with heat medium import pipeline and heat medium export pipeline on the 2# rectifying column reboiler, heat medium export pipeline links to each other with 2# rectifying column feed preheater, realizes preheating 2# rectifying column feed conduit.
The waste heat utilization energy-saving consumption-reducing rectifying tower set is characterized in that a second circulating pipeline is arranged on a tower bottom liquid outlet pipeline of the No. 1 rectifying tower and is connected with the lower end of the No. 1 rectifying tower through the second circulating pipeline, a No. 1 rectifying tower reboiler is arranged on the second circulating pipeline, a No. 2 rectifying tower gas phase outlet pipeline is arranged at the top of the No. 2 rectifying tower, the No. 2 rectifying tower gas phase outlet pipeline is connected with an inlet of the No. 1 rectifying tower reboiler to realize heat exchange of the tower bottom liquid of the No. 1 rectifying tower, a first connecting pipeline is arranged on an outlet of the No. 1 rectifying tower reboiler, a No. 2 rectifying tower condenser is connected and arranged at the tail end of the first connecting pipeline, a No. 2 rectifying tower distillate storage tank is arranged at an outlet of the condenser through a pipeline connection, a first pipeline is arranged at an outlet of the No. 2 rectifying tower distillate storage tank, and is connected and provided with a No. 2 rectifying tower distillate conveying pump through the first pipeline, the 2# rectifying tower distillate delivery pump is connected with the 2# rectifying tower through a second pipeline, so that gas phase circulation is realized; and a distillate pipeline is also arranged on the 2# rectifying tower distillate delivery pump and is used as a material finished product output pipeline.
The waste heat utilization energy-saving consumption-reducing rectifying tower set is characterized in that the 1# rectifying tower and the 2# rectifying tower are both packed towers, the 1# rectifying tower reboiler and the 2# rectifying tower reboiler are both vertical heat exchangers, and the condenser, the 1# rectifying tower feeding preheater and the 2# rectifying tower feeding preheater are all horizontal heat exchangers.
The utility model has the advantages that: the rectifying tower group can realize multi-stage utilization of energy, improve the utilization rate of waste heat, greatly reduce the use amount of heating media and cooling media and save the energy consumption by 30 percent.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and specific examples.
As shown in fig. 1, a rectification column group with energy saving and consumption reduction by waste heat utilization comprises a 1# rectification column 1, a 1# rectification column feed preheater 2, a 1# rectification column reboiler 3, a 1# rectification column bottom liquid delivery pump 4, a 2# rectification column distillate delivery pump 5, a 2# rectification column condenser 6, a 2# rectification column distillate storage tank 7, a 2# rectification column feed preheater 8, a 2# rectification column 9, a 2# rectification column reboiler 10, and a 2# rectification column bottom liquid delivery pump 11.
The waste heat utilization energy-saving consumption-reducing rectifying tower set comprises a 1# rectifying tower 1, a 1# rectifying tower bottom liquid conveying pump 4, a 2# rectifying tower 9 and a 2# rectifying tower bottom liquid conveying pump 11, wherein a 1# rectifying tower bottom liquid outlet pipeline 103 is arranged between the 1# rectifying tower 1 and the 1# rectifying tower bottom liquid conveying pump 4, the 1# rectifying tower 1 and the 2# rectifying tower 9 are connected through a 2# rectifying tower feeding pipeline 105, a 2# rectifying tower bottom liquid outlet pipeline 113 is arranged between the 2# rectifying tower 9 and the 2# rectifying tower bottom liquid conveying pump 11, and the waste heat utilization energy-saving consumption-reducing rectifying tower set is characterized in that a 1# rectifying tower feeding pipeline 101 is arranged on the 1# rectifying tower 1, a 1# rectifying tower feeding preheater 2 is connected and arranged on the 1# rectifying tower feeding pipeline 101, and a 2# rectifying tower bottom liquid conveying pipeline 115 is arranged between the 2# rectifying tower bottom liquid conveying pump 11 and the 1# rectifying tower feeding preheater 2, thereby realize preheating 1# rectifying column charge-in pipeline 101, 2# rectifying column tower bottom liquid is as the feeding heating source of 1# rectifying column feeding preheater.
Be equipped with 2# rectifying column feeding preheater 8 on 2# rectifying column charge-in pipeline 102, be equipped with first circulating line 114 on 2# rectifying column tower bottom outlet pipe 113 to link to each other with 2# rectifying column 9 lower extreme through first circulating line 114, be equipped with 2# rectifying column reboiler 10 on the first circulating line 114, be equipped with heat medium inlet pipe 111 and heat medium outlet pipe 112 on 2# rectifying column reboiler 10, heat medium outlet pipe 112 links to each other with 2# rectifying column feeding preheater 8, realizes preheating 2# rectifying column feeding pipeline 105. After the heat medium of the reboiler of the 2# rectifying tower exchanges heat for the first time, the heat medium is used as a secondary heating source of the feeding preheater of the 2# rectifying tower, and secondary utilization of waste heat is realized.
A second circulating pipeline 104 is arranged on a tower bottom outlet pipeline 103 of the No. 1 rectifying tower and is connected with the lower end of the No. 1 rectifying tower 1 through the second circulating pipeline 104, a No. 1 rectifying tower reboiler 3 is arranged on the second circulating pipeline 104, a No. 2 rectifying tower gas phase outlet pipeline 110 is arranged at the top of the No. 2 rectifying tower 9, the No. 2 rectifying tower gas phase outlet pipeline 110 is connected with an inlet of the No. 1 rectifying tower reboiler 3 to realize heat exchange of tower bottom liquid of the No. 1 rectifying tower, a first connecting pipeline 106 is arranged at an outlet of the No. 1 rectifying tower reboiler 3, a No. 2 rectifying tower condenser 6 (the No. 2 rectifying tower condenser 6 adopts a refrigerant for condensation) is connected at the tail end of the first connecting pipeline 106, a No. 2 rectifying tower distillate storage tank 7 is arranged at an outlet of the No. 2 rectifying tower distillate storage tank 7 through a pipeline, a first pipeline 107 is arranged at an outlet of the No. 2 rectifying tower distillate storage tank 7, a 2# rectifying tower distillate delivery pump 5 is connected and arranged with a first pipeline 107, and the 2# rectifying tower distillate delivery pump 5 is connected with a 2# rectifying tower 9 by a second pipeline 108, so that gas phase circulation is realized; the 2# rectifying tower distillate delivery pump 5 is also provided with a distillate pipeline 109 as a material finished product output pipeline; the 2# rectifying column gas phase is used as a primary heating source of the 1# rectifying column reboiler, the utilization rate of material waste heat is improved, the using amount of a refrigerant is reduced, one part of condensed 2# rectifying column top liquid flows back to the 2# rectifying column, and the other part of condensed 2# rectifying column top liquid is sent out as a product.
The rectifying towers of the 1# rectifying tower 1 and the 2# rectifying tower 9 are both packed towers; the No. 1 rectifying tower reboiler 3 and the No. 2 rectifying tower reboiler 10 are both vertical heat exchangers, the condenser 6, the No. 1 rectifying tower feed preheater 2 and the No. 2 rectifying tower feed preheater 8 are all horizontal heat exchangers, and equipment materials are Q345R, stainless steel and the like; heating medium media of the No. 2 rectifying tower are steam, heat conduction oil, hot water and the like; the refrigerant of the condenser of the 2# rectifying tower can be frozen brine, low-temperature water, circulating water and the like.
Although the present invention has been disclosed in the foregoing by preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can use the above-disclosed method and technical contents to make possible changes and modifications to the technical solution of the present invention without departing from the spirit and scope of the present invention, and therefore, any simple modification, equivalent changes and modifications made to the above embodiments by the technical matters of the present invention all belong to the protection scope of the technical solution of the present invention.
Claims (4)
1. The utility model provides a waste heat utilization energy saving and consumption reduction rectifying column group, includes 1# rectifying column (1), 1# rectifying column bottom liquid delivery pump (4), 2# rectifying column (9) and 2# rectifying column bottom liquid delivery pump (11), be equipped with 1# rectifying column bottom liquid outlet pipe (103) between 1# rectifying column (1) and 1# rectifying column bottom liquid delivery pump (4), link to each other through 2# rectifying column feed pipe (105) between 1# rectifying column (1) and 2# rectifying column (9), be equipped with 2# rectifying column bottom liquid outlet pipe (113) between 2# rectifying column (9) and 2# rectifying column bottom liquid delivery pump (11), its characterized in that, be equipped with 1# rectifying column feed pipe (101) on 1# rectifying column (1), connect on 1# rectifying column feed pipe (101) and set up 1# rectifying column feed preheater (2), and an outlet pipeline (115) of the tower bottom liquid conveying pump of the 2# rectifying tower is arranged between the tower bottom liquid conveying pump (11) of the 2# rectifying tower and the feeding preheater (2) of the 1# rectifying tower, so that the feeding pipeline (101) of the 1# rectifying tower is preheated.
2. The waste heat utilization energy-saving consumption-reducing rectifying tower set as claimed in claim 1, wherein a No. 2 rectifying tower feed preheater (8) is arranged on the No. 2 rectifying tower feed pipeline (102), a first circulating pipeline (114) is arranged on the No. 2 rectifying tower bottoms outlet pipeline (113), the first circulating pipeline (114) is connected with the lower end of the No. 2 rectifying tower (9), a No. 2 rectifying tower reboiler (10) is arranged on the first circulating pipeline (114), a heat medium inlet pipeline (111) and a heat medium outlet pipeline (112) are arranged on the No. 2 rectifying tower reboiler (10), the heat medium outlet pipeline (112) is connected with the No. 2 rectifying tower feed preheater (8), and preheating of the No. 2 rectifying tower feed pipeline (105) is realized.
3. The waste heat utilization energy-saving consumption-reducing rectifying tower set according to claim 2, wherein a second circulating pipeline (104) is arranged on the tower bottom outlet pipeline (103) of the No. 1 rectifying tower, the tower bottom outlet pipeline (103) is connected with the lower end of the No. 1 rectifying tower (1) through the second circulating pipeline (104), a No. 1 rectifying tower reboiler (3) is arranged on the second circulating pipeline (104), a No. 2 rectifying tower gas phase outlet pipeline (110) is arranged at the top of the No. 2 rectifying tower (9), the No. 2 rectifying tower gas phase outlet pipeline (110) is connected with an inlet of the No. 1 rectifying tower reboiler (3) to realize heat exchange of the tower bottom liquid of the No. 1 rectifying tower, a first connecting pipeline (106) is arranged at an outlet of the No. 1 rectifying tower reboiler (3), a No. 2 rectifying tower condenser (6) is connected and arranged at the tail end of the first connecting pipeline (106), a No. 2 rectifying tower condenser (6) is arranged at an outlet of the No. 2 rectifying tower condenser (6) through a pipeline connection and a No. 2 rectifying tower distillate storage tank, a first pipeline (107) is arranged at an outlet of the 2# rectifying tower distillate storage tank (7), the first pipeline (107) is connected with a 2# rectifying tower distillate delivery pump (5), and the 2# rectifying tower distillate delivery pump (5) is connected with the 2# rectifying tower (9) through a second pipeline (108), so that gas phase circulation is realized; and a distillate pipeline (109) is also arranged on the 2# rectifying tower distillate delivery pump (5) and is used as a material finished product output pipeline.
4. The waste heat utilization energy-saving consumption-reducing rectifying tower set according to claim 3, wherein the rectifying tower 1 and the rectifying tower 2 (9) are both packed towers, the rectifying tower 1 (3) and the rectifying tower 2 (10) are both vertical heat exchangers, and the rectifying tower 2 (6), the rectifying tower 1 (2) and the rectifying tower 2 (8) are all horizontal heat exchangers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920907225.3U CN211215492U (en) | 2019-06-17 | 2019-06-17 | Waste heat utilization energy-saving consumption-reducing rectifying tower set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920907225.3U CN211215492U (en) | 2019-06-17 | 2019-06-17 | Waste heat utilization energy-saving consumption-reducing rectifying tower set |
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| Publication Number | Publication Date |
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| CN211215492U true CN211215492U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920907225.3U Active CN211215492U (en) | 2019-06-17 | 2019-06-17 | Waste heat utilization energy-saving consumption-reducing rectifying tower set |
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| CN (1) | CN211215492U (en) |
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- 2019-06-17 CN CN201920907225.3U patent/CN211215492U/en active Active
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