CN219815329U - Stripping system applied to fractionating tower - Google Patents
Stripping system applied to fractionating tower Download PDFInfo
- Publication number
- CN219815329U CN219815329U CN202320976826.6U CN202320976826U CN219815329U CN 219815329 U CN219815329 U CN 219815329U CN 202320976826 U CN202320976826 U CN 202320976826U CN 219815329 U CN219815329 U CN 219815329U
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- Prior art keywords
- steam
- inlet pipe
- pipe
- dry gas
- air outlet
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Links
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 18
- 230000023556 desulfurization Effects 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 28
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000005194 fractionation Methods 0.000 claims description 5
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000002699 waste material Substances 0.000 abstract description 3
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 239000002283 diesel fuel Substances 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model relates to a stripping system applied to a fractionating tower, which comprises the fractionating tower, an air outlet pipe and a steam inlet pipe, wherein the front end of the steam inlet pipe is connected with a desulfurization dry gas inlet pipe in parallel, a cooling device is arranged on the air outlet pipe, the air outlet pipe is connected with a horizontal tank, the top of the horizontal tank is connected with a first steam-water separator, the top of the first steam-water separator is connected with a compressor through a pipeline, the outlet of the compressor is connected with a second steam-water separator through a pipeline, the top of the second steam-water separator is connected with a dry gas circulating pipe, and the bottoms of the first steam-water separator and the second steam-water separator are both connected with a vortex centrifugal pump. The desulfurization dry gas inlet pipe can be arranged beside the steam inlet pipe in parallel, the steam inlet pipe is not required to be removed, the improvement is convenient, the desulfurization dry gas is utilized to replace steam, the problems of long water treatment time and high energy consumption in other systems are effectively avoided, and the key point is that the partial pressure of steam can be completely replaced by the pressure of the dry gas component, the cyclic utilization of the dry gas can be realized, and the waste is reduced.
Description
Technical Field
The utility model relates to a stripping system applied to a fractionating tower, and belongs to the technical field of split-flow purification.
Background
After the hydrogenated diesel oil is reacted, the hydrogenated diesel oil enters a fractionation process, stripping steam is injected into the bottom of the tower to play a role of stripping fractionation, however, trace water is often generated after the diesel oil exits the device, so that the diesel oil is turbid in color, combustion is affected after the diesel oil enters an automobile, the combustion is mainly caused by blowing steam at the bottom of the tower, even though the steam is overheated, the problem of water is also caused, and the phenomenon is probably caused because a small amount of steam does not overflow from an oil product, is cooled along with the oil product, and finally becomes water to be dispersed in the oil product. The following two methods are generally removed: first, diesel oil is generally clear after settling for about 3 days in a tank farm, but takes a long time; second, cancel the bottom of the tower and annotate the vapour, change to the reboiler stove to heat; but its energy consumption is too high.
Disclosure of Invention
The utility model provides a stripping system applied to a fractionating tower, which solves the problems that the existing system has long time consumption in diesel dehydration and the heating of a reboiler; and the energy consumption is too high.
The utility model relates to a stripping system applied to a fractionating tower, which comprises the fractionating tower, wherein an air outlet pipe is arranged at the top of the fractionating tower, a steam inlet pipe is connected to the lower part of the fractionating tower, the front ends of the steam inlet pipe are connected with a desulfurization dry air inlet pipe in parallel, valves are arranged at the front ends of the desulfurization dry air inlet pipe and the steam inlet pipe, a cooling device is arranged on the air outlet pipe, the air outlet pipe is connected with a horizontal tank, the top of the horizontal tank is connected with an air outlet, the air outlet is connected with a first vapor-liquid separator through a pipeline, the top of the first vapor-liquid separator is connected with a compressor through a pipeline, an outlet of the compressor is connected with a second vapor-liquid separator through a pipeline, the top of the second vapor-liquid separator is connected with a dry air circulation pipe, the bottoms of the first vapor-liquid separator and the second vapor-liquid separator are connected with liquid discharge pipes, the liquid discharge pipes are connected with vortex centrifugal pumps, and the outlets of the vortex centrifugal pumps are connected with condensate outlet pipes.
Preferably, the rear end of the steam inlet pipe is provided with a flow valve, and the amount of the desulfurization dry gas entering the bottom of the fractionating tower can be adjusted according to the requirement.
Preferably, the cooling device includes an air cooler and a water cooler. The cooling effect is better by water cooling once again after air cooling.
Preferably, the top air outlet of the sleeping tank is also connected with an exhaust pipe through a pipeline, and the exhaust pipe is provided with a pressure regulating valve. The pressure of the whole system can be regulated, when the pressure of the horizontal tank exceeds the set value of the pressure regulating valve, the pressure regulating valve is opened, and gas enters the exhaust pipe and then enters the torch.
The utility model has the following beneficial effects:
the desulfurization dry gas inlet pipe can be arranged beside the steam inlet pipe in parallel, the steam inlet pipe does not need to be removed, the improvement is convenient, the desulfurization dry gas is utilized to replace steam, the problems of long water treatment time and high energy consumption in other systems are effectively avoided, and the key point is that the partial pressure of steam can be completely replaced by the dry gas component pressure, the cyclic utilization of the dry gas can be realized, and the waste is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure: 1. the desulfurization dry gas inlet pipe, 2, a valve, 3, a steam inlet pipe, 4, a flow valve, 5, a fractionating tower, 6, an air cooler, 7, a water cooler, 8, a horizontal tank, 9, a liquid discharge pipe, 10, a vortex centrifugal pump, 11, a condensate oil outlet pipe, 12, a second gas-liquid separator, 13, a dry gas circulation pipe, 14, a compressor, 15, a first gas-liquid separator, 16, an exhaust pipe, 17 and a pressure regulating valve.
Detailed Description
The utility model is further illustrated below with reference to examples.
In the embodiment 1, as shown in fig. 1, the utility model is a stripping system applied to a fractionating tower, comprising the fractionating tower 5, wherein an air outlet pipe is arranged at the top of the fractionating tower 5, a steam inlet pipe 3 is connected at the lower part of the fractionating tower 5, a desulfurization dry gas inlet pipe 1 is connected in parallel at the front end of the steam inlet pipe 3, valves 2 are arranged at the front ends of the desulfurization dry gas inlet pipe 1 and the steam inlet pipe 3, a cooling device is arranged on the air outlet pipe, a horizontal tank 8 is connected with the air outlet of the horizontal tank 8, the air outlet is connected with a first vapor-liquid separator 15 through a pipeline, the top of the first vapor-liquid separator 15 is connected with a compressor 14 through a pipeline, an outlet of the compressor 14 is connected with a second vapor-liquid separator 12 through a pipeline, a dry gas circulation pipe 13 is connected at the top of the second vapor-liquid separator 12, liquid discharge pipes 9 are connected with a vortex centrifugal pump 10, and a condensate outlet of the vortex centrifugal pump 10 is connected with a condensate outlet pipe 11.
When in operation, the device comprises: closing a valve of the steam inlet pipe 3, opening a valve of the desulfurization dry gas inlet pipe 1, allowing the desulfurization dry gas to enter the fractionating tower 5, allowing a gas phase from the top of the fractionating tower 5 to enter the horizontal tank 8 after being cooled by the tower top cooling device, connecting an air outlet of the horizontal tank 8 with DN-150 pipeline, allowing the gas after entering the first gas-liquid separator 15 to enter the second gas-liquid separator 12 after passing through an outlet of the compressor 14, and allowing the separated gas to enter a next dry gas utilization system from the dry gas circulation pipe 13 or directly participate in recycling after being connected to the desulfurization dry gas inlet pipe 1, and allowing condensed oil of the first gas-liquid separator 15 and the second gas-liquid separator 12 to return to a condensed oil tank after passing through the condensed oil outlet pipe 11 by the vortex centrifugal pump 10.
In example 2, on the basis of example 1, the rear end of the steam inlet pipe 3 is provided with a flow valve 4.
The cooling device includes an air cooler 6 and a water cooler 7.
The top air outlet of the horizontal tank 8 is also connected with an exhaust pipe 16 through a pipeline, and a pressure regulating valve 17 is arranged on the exhaust pipe 16.
In summary, the desulfurization dry gas inlet pipe can be arranged beside the steam inlet pipe in parallel, the steam inlet pipe is not required to be removed, the improvement is convenient, the desulfurization dry gas is utilized to replace steam, the problems of long water treatment time and high energy consumption in other systems are effectively avoided, and the key point is that the partial pressure of steam can be completely replaced by the dry gas component pressure, the dry gas can be recycled, and the waste is reduced.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
In the description of the present utility model, the terms "inner", "outer", "longitudinal", "transverse", "upper", "lower", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, only for convenience in describing the present utility model, and do not require that the present utility model must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Claims (4)
1. The utility model provides a be applied to stripping system of fractionating tower, includes fractionating tower (5), and the top of fractionating tower (5) is equipped with the outlet duct, and the lower part of fractionating tower (5) is connected with steam intake pipe (3), its characterized in that: the front end of the steam inlet pipe (3) is connected with a desulfurization dry gas inlet pipe (1) in parallel, valves (2) are arranged on the front ends of the desulfurization dry gas inlet pipe (1) and the steam inlet pipe (3), a cooling device is arranged on an air outlet pipe, the air outlet pipe is connected with a horizontal tank (8), the top of the horizontal tank (8) is connected with an air outlet, the air outlet is connected with a first vapor-liquid separator (15) through a pipeline, the top of the first vapor-liquid separator (15) is connected with a compressor (14) through a pipeline, the outlet of the compressor (14) is connected with a second vapor-liquid separator (12) through a pipeline, the top of the second vapor-liquid separator (12) is connected with a dry gas circulation pipe (13), the bottoms of the first vapor-liquid separator (15) and the second vapor-liquid separator (12) are both connected with a liquid discharge pipe (9), the liquid discharge pipe (9) is connected with a vortex centrifugal pump (10), and the outlet of the vortex centrifugal pump (10) is connected with a condensate oil outlet pipe (11).
2. A stripping system for a fractionation column according to claim 1 wherein: the rear end of the steam inlet pipe (3) is provided with a flow valve (4).
3. A stripping system for a fractionation column according to claim 1 or 2, wherein: the cooling device comprises an air cooler (6) and a water cooler (7).
4. A stripping system for a fractionation column according to claim 3 wherein: the top air outlet of the sleeping pot (8) is also connected with an exhaust pipe (16) through a pipeline, and a pressure regulating valve (17) is arranged on the exhaust pipe (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320976826.6U CN219815329U (en) | 2023-04-26 | 2023-04-26 | Stripping system applied to fractionating tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320976826.6U CN219815329U (en) | 2023-04-26 | 2023-04-26 | Stripping system applied to fractionating tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219815329U true CN219815329U (en) | 2023-10-13 |
Family
ID=88273223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320976826.6U Active CN219815329U (en) | 2023-04-26 | 2023-04-26 | Stripping system applied to fractionating tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219815329U (en) |
-
2023
- 2023-04-26 CN CN202320976826.6U patent/CN219815329U/en active Active
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