CN219579906U - Rectifying column top gas phase heat recycling device - Google Patents
Rectifying column top gas phase heat recycling device Download PDFInfo
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- CN219579906U CN219579906U CN202320657668.8U CN202320657668U CN219579906U CN 219579906 U CN219579906 U CN 219579906U CN 202320657668 U CN202320657668 U CN 202320657668U CN 219579906 U CN219579906 U CN 219579906U
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- fixedly connected
- pipeline
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- rectifying tower
- heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The utility model relates to the technical field of chemical industry and discloses a gas-phase heat recycling device of a rectifying tower top, which comprises a low-temperature rectifying tower, wherein the right side of the low-temperature rectifying tower is fixedly connected with a low-temperature reboiler through a pipeline, the output end of the low-temperature reboiler is fixedly connected with a heat medium water heat exchanger through a pipeline, the output end of the heat medium water heat exchanger is fixedly connected with a high-temperature rectifying tower top condenser through a pipeline, the output end of a reflux pump of the high-temperature rectifying tower is fixedly connected with a high-temperature rectifying tower through a pipeline, the right side of the high-temperature rectifying tower is fixedly connected with a high-temperature reboiler through a pipeline, and the left side of the heat medium water heat exchanger is fixedly connected with a heat medium water pump through a pipeline. In the utility model, water is used as a medium to recover heat at the top of the high-temperature rectifying tower, the heat is used for heat supply of a tower kettle reboiler of the low-temperature rectifying tower, and meanwhile, the gas phase heat at the top of the rectifying tower can be used by a quart device, so that the heat is more convenient to use.
Description
Technical Field
The utility model relates to the technical field of chemical industry, in particular to a rectifying tower top gas phase heat recycling device.
Background
The rectification is a typical unit operation for separating a miscible liquid mixture in chemical production, which is essentially multistage distillation, i.e. the concentration of light components in the gas phase and heavy components in the liquid phase is gradually increased by multiple partial liquid phase vaporization and partial gas phase condensation under a certain pressure by utilizing the difference of the boiling points or saturated vapor pressures of the components of the miscible liquid mixture to vaporize the light components (components with lower boiling points or higher saturated vapor pressures)
In conventional chemical rectification operations, the top gas phase of a rectification column is typically condensed using circulating cooling water, and heat in the gas phase is carried away by the circulating water and vented to the atmosphere through a cooling tower. The top gas phase of the rectifying tower contains a large amount of heat, and the heat is wasted if the circulating cooling water is adopted for condensation.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a rectifying tower top gas phase heat recycling device.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a rectifying column top gaseous phase heat recycling device, includes the low temperature rectifying column, the right side of low temperature rectifying column passes through pipeline fixedly connected with low temperature reboiler, the output of low temperature reboiler passes through pipeline fixedly connected with heat medium water heat exchanger, the output of heat medium water heat exchanger passes through pipeline fixedly connected with high temperature rectifying column top condenser, the output of high temperature rectifying column top condenser passes through pipeline fixedly connected with high temperature rectifying column reflux drum, pipeline fixedly connected with high temperature rectifying column reflux pump is passed through to the bottom of high temperature rectifying column reflux drum, pipeline fixedly connected with high temperature rectifying column is passed through to the output of high temperature rectifying column reflux pump, pipeline fixedly connected with high temperature reboiler is passed through on the right side of high temperature rectifying column, the left side of heat medium water heat exchanger passes through pipeline fixedly connected with heat medium water pump, the pass through pipeline fixedly connected with heat medium water make-up tank of heat medium water pump.
As a further description of the above technical solution:
the low-temperature reboiler is fixedly connected to the left side of the heat medium water pump through a pipeline.
As a further description of the above technical solution:
the bottom of the low-temperature rectifying tower is fixedly connected to the left side of the low-temperature reboiler through a pipeline.
As a further description of the above technical solution:
the top of the high-temperature rectifying tower is fixedly connected to the top end of the heat medium water heat exchanger through a pipeline.
As a further description of the above technical solution:
the reflux pump of the high-temperature rectifying tower is fixedly connected to the left side of the high-temperature rectifying tower through a pipeline.
As a further description of the above technical solution:
the bottom of the high-temperature reboiler is fixedly connected to the right side of the high-temperature rectifying tower through a pipeline.
The utility model has the following beneficial effects:
1. in the utility model, water is used as a medium to recover heat at the top of the high-temperature rectifying tower, the heat is used for heat supply of a tower kettle reboiler of the low-temperature rectifying tower, and the obtained gas phase heat at the top of the rectifying tower can be used by a quart device, so that the heat is more convenient to use.
Drawings
Fig. 1 is a system diagram of a vapor phase heat recycling device at the top of a rectifying tower.
Legend description:
1. a low temperature rectifying tower; 2. a high temperature rectifying tower; 3. a low temperature reboiler; 4. a heat medium water heat exchanger; 5. a condenser at the top of the high-temperature rectifying tower; 6. a high temperature reboiler; 7. a heating medium water replenishing tank; 8. a high temperature rectifying tower reflux drum; 9. a heat medium water pump; 10. and a reflux pump of the high-temperature rectifying tower.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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 be within the scope of the utility model.
Referring to fig. 1, one embodiment provided by the present utility model: the utility model provides a rectifying column top gaseous phase heat recycling device, including low temperature rectifying column 1, the right side of low temperature rectifying column 1 is through pipeline fixedly connected with low temperature reboiler 3, the design of low temperature reboiler 3 is in order to carry out the material input to low temperature rectifying column 1 inside, the output of low temperature reboiler 3 is through pipeline fixedly connected with heat medium water heat exchanger 4, the design of heat medium water heat exchanger 4 is in order to play whole scavenger effect to inside gas, the output of heat medium water heat exchanger 4 is through pipeline fixedly connected with high temperature rectifying column top condenser 5, the design of high temperature rectifying column top condenser 5 is in order to condense inside gas, the output of high temperature rectifying column top condenser 5 is through pipeline fixedly connected with high temperature rectifying column reflux tank 8, the design of high temperature rectifying column reflux tank 8 is in order to carry out the backward flow to the gas after the condensation, the bottom of high temperature rectifying column reflux tank 8 is through pipeline fixedly connected with high temperature rectifying column reflux pump 10, the output of high temperature rectifying column reflux pump 10 is through pipeline fixedly connected with high temperature rectifying column 2, high temperature rectifying column 2 is through pipeline fixedly connected with high temperature medium water pump 9 through pipeline fixedly connected with high temperature rectifying column heat medium water pump 7 through pipeline fixedly connected with high temperature medium water pump 9.
The low temperature reboiler 3 passes through pipeline fixed connection in heat medium water pump 9 left side, the bottom of low temperature rectifying column 1 passes through pipeline fixed connection in the left side of low temperature reboiler 3, the top of high temperature rectifying column 2 passes through pipeline fixed connection in the top of heat medium water heat exchanger 4, high temperature rectifying column reflux pump 10 passes through pipeline fixed connection in the left side of high temperature rectifying column 2, the bottom of high temperature reboiler 6 passes through pipeline fixed connection in the right side of high temperature rectifying column 2, such design is in order to let whole inside can communicate, the convenience is inside to use each other and carry.
Working principle: the gas phase at the top of the high-temperature rectifying tower 2 exchanges heat with the heat medium water from the heat medium water pump 9 through the heat medium water heat exchanger 4; the gas phase temperature at the top of the high-temperature rectifying tower 2 is reduced to generate phase change, heat is taken away by heat medium water, the temperature of the heat medium water is increased, the increased heat medium water is used as a heat source of a reboiler at the bottom of the low-temperature rectifying tower, exchanges heat with materials in a tube side through a shell side of the low-temperature reboiler 3, the temperature of the heat medium water after heat exchange is reduced, returns to an inlet of a heat medium water pump 9, and enters the heat medium water heat exchanger 4 again to exchange heat with the gas phase at the top of the high-temperature rectifying tower 2. So reciprocally, the top gas phase heat of the high-pressure rectifying tower is recycled, the top gas phase of the high-pressure rectifying tower passes through the heat medium water heat exchanger 4 and then enters the high-temperature rectifying tower top condenser 5, the top gas phase is condensed and then enters the high-temperature rectifying tower reflux tank 8, and the reflux pump is used for conveying the top gas phase to the tower for reflux, so that the heat of the top of the high-temperature rectifying tower is recycled by taking water as a medium, the heat is used for heat supply of a tower kettle reboiler of the low-temperature rectifying tower, and meanwhile, the top gas phase heat of the rectifying tower can be used by a device, so that the heat is more convenient to use.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (6)
1. The utility model provides a rectifying column top gaseous phase heat recycle device, includes low temperature rectifying column (1), its characterized in that: the low temperature rectifying column (1) right side is through pipeline fixedly connected with low temperature reboiler (3), the output of low temperature reboiler (3) is through pipeline fixedly connected with heat medium water heat exchanger (4), the output of heat medium water heat exchanger (4) is through pipeline fixedly connected with high temperature rectifying column top condenser (5), the output of high temperature rectifying column top condenser (5) is through pipeline fixedly connected with high temperature rectifying column reflux drum (8), pipeline fixedly connected with high temperature rectifying column reflux pump (10) are passed through to the bottom of high temperature rectifying column reflux drum (8), pipeline fixedly connected with high temperature rectifying column (2) are passed through to the output of high temperature rectifying column reflux pump (10), pipeline fixedly connected with high temperature reboiler (6) are passed through on the right side of high temperature rectifying column (2), pipeline fixedly connected with heat medium water pump (9) are passed through on the left side of heat medium water heat exchanger (4), pipeline fixedly connected with heat medium water make-up tank (7) are passed through to the left side of heat medium water pump (9).
2. The rectifying tower top gas phase heat recycling device according to claim 1, wherein: the low-temperature reboiler (3) is fixedly connected to the left side of the heat medium water pump (9) through a pipeline.
3. The rectifying tower top gas phase heat recycling device according to claim 1, wherein: the bottom of the low-temperature rectifying tower (1) is fixedly connected to the left side of the low-temperature reboiler (3) through a pipeline.
4. The rectifying tower top gas phase heat recycling device according to claim 1, wherein: the top of the high-temperature rectifying tower (2) is fixedly connected to the top end of the heat medium water heat exchanger (4) through a pipeline.
5. The rectifying tower top gas phase heat recycling device according to claim 1, wherein: the high-temperature rectifying tower reflux pump (10) is fixedly connected to the left side of the high-temperature rectifying tower (2) through a pipeline.
6. The rectifying tower top gas phase heat recycling device according to claim 1, wherein: the bottom of the high-temperature reboiler (6) is fixedly connected to the right side of the high-temperature rectifying tower (2) through a pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320657668.8U CN219579906U (en) | 2023-03-29 | 2023-03-29 | Rectifying column top gas phase heat recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320657668.8U CN219579906U (en) | 2023-03-29 | 2023-03-29 | Rectifying column top gas phase heat recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219579906U true CN219579906U (en) | 2023-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320657668.8U Active CN219579906U (en) | 2023-03-29 | 2023-03-29 | Rectifying column top gas phase heat recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219579906U (en) |
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2023
- 2023-03-29 CN CN202320657668.8U patent/CN219579906U/en active Active
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