CN219117382U - Fractional distillation ultra-low pressure production device - Google Patents
Fractional distillation ultra-low pressure production device Download PDFInfo
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- CN219117382U CN219117382U CN202222089691.XU CN202222089691U CN219117382U CN 219117382 U CN219117382 U CN 219117382U CN 202222089691 U CN202222089691 U CN 202222089691U CN 219117382 U CN219117382 U CN 219117382U
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000004508 fractional distillation Methods 0.000 title claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 238000010992 reflux Methods 0.000 claims abstract description 20
- 238000005406 washing Methods 0.000 claims abstract description 19
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 18
- 230000023556 desulfurization Effects 0.000 claims abstract description 18
- 150000003839 salts Chemical class 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 239000012071 phase Substances 0.000 claims description 7
- 238000005194 fractionation Methods 0.000 claims description 6
- 238000011033 desalting Methods 0.000 claims description 2
- 239000007791 liquid phase Substances 0.000 claims description 2
- 230000018044 dehydration Effects 0.000 claims 1
- 238000006297 dehydration reaction Methods 0.000 claims 1
- 230000006837 decompression Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000005265 energy consumption Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 53
- 238000001816 cooling Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model relates to a fractional distillation ultra-low pressure production device, and belongs to the technical field of oil product processing. The constant-pressure gas boiler comprises a constant-pressure tower which is sequentially connected with a constant-pressure gas line, an air cooler, a water cooler and a constant-pressure reflux tank, wherein the lower part of the constant-pressure reflux tank is respectively connected with a first naphtha pump and a second naphtha pump, the upper part of the constant-pressure reflux tank is separately connected with a constant-pressure gas tank, the constant-pressure gas tank is connected with a water washing tank, a Roots blower is arranged between the constant-pressure gas tank and a water washing tank connecting pipe, the lower part of the water washing tank is connected with a water removing pipeline pump, the upper part of the water washing tank is respectively connected with a salt removing pipeline and a gas evacuator, and the gas evacuator is connected with the upper part of a gas desulfurization tank. The utility model provides a fractional distillation ultra-low pressure production device, the operation pressure is lower than 0.02mpa, and the ultra-low pressure production of an atmospheric tower is realized, so that the effective separation of components can be realized, the yield of the atmospheric tower product is improved, the load of a decompression furnace and a decompression tower is reduced, and good effects are achieved in the aspects of energy conservation and consumption reduction.
Description
Technical Field
The utility model relates to a fractional distillation ultra-low pressure production device, and belongs to the technical field of oil product processing.
Background
In the production of atmospheric and vacuum devices, the pressure at the top of the normal pressure tower is generally 0.05-0.1mpa, and the normal pressure gas is directly fed into a heating furnace for combustion in the condition of no environmental protection in the last few years, but the environmental protection work requirements are increasingly severe along with the national requirements, because the atmospheric and vacuum pressure has no independent desulfurization system.
The prior art has the following technical defects: atmospheric and vacuum gas cannot be desulfurized, the atmospheric gas cannot be directly used as heating furnace fuel, in order to save capital investment, some enterprises can only increase the top pressure of an atmospheric tower in order to send the atmospheric gas to other devices for desulfurization, so that the gas is sent out, and therefore, the operating pressure of the atmospheric tower can even reach more than 0.15 mpa. Too high a pressure can result in pipeline formation of salt, increased emissions of flue gas contaminants, and increased tower head pressure in the atmospheric tower, resulting in low side product yields.
Disclosure of Invention
The utility model aims to solve the technical problems that: the utility model provides a overcome the not enough of prior art, provides a fractional distillation ultra-low pressure apparatus for producing, operating pressure reaches below 0.02mpa, realizes the ultra-low pressure production of atmospheric tower to more can realize the effective separation of component, improve the yield of atmospheric tower product, thereby reduced the load of decompression stove and vacuum tower, play good effect in energy saving and consumption reduction.
The utility model relates to a fractionation ultra-low pressure production device, which comprises an atmospheric tower, an atmospheric gas line, an air cooler, a water cooler and a normal top reflux tank, wherein the lower part of the normal top reflux tank is respectively connected with a first naphtha pump and a second naphtha pump, the upper part of the normal top reflux tank is separately connected with an atmospheric gas tank, the atmospheric gas tank is connected with a water washing tank, a Roots blower is arranged between a connecting pipe of the atmospheric gas tank and the water washing tank, the lower part of the water washing tank is connected with a water removal pipeline pump, the upper part of the water washing tank is respectively connected with a salt removal water injection pipeline and a gas evacuator, the gas evacuator is connected with the upper part of a gas desulfurization tank, the lower part of the gas desulfurization tank is connected with the gas evacuator through a lean liquid pump, and the upper part of the gas desulfurization tank is separately connected with a heating furnace.
Further, the upper part of the normal pressure gas tank is connected with a gas phase pipeline, and the normal pressure gas tank is connected with the Roots blower through the gas phase pipeline.
Further, liquid naphtha in the normal top reflux pump is sent out by arranging a first naphtha pump and a second naphtha pump.
Further, two pipelines are arranged at the upper part of the normal-top reflux tank and are respectively connected with the water cooler and the normal-pressure gas tank.
Further, the upper part of the water washing tank is provided with three pipelines which are respectively connected with the Roots blower, the salt injection and removal waterline and the gas evacuator.
Further, two pipelines are arranged at the upper part of the gas desulfurization tank and are respectively connected with the gas evacuator and the heating furnace.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model prevents pipeline salt, reduces the discharge amount of smoke pollutants, reduces the pressure at the top of the atmospheric tower, improves the yield of products at each side line, has high production efficiency, saves energy, reduces consumption and protects environment.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present utility model;
in the figure: 1. an atmospheric tower; 2. a normal pressure gas line; 3. an air cooler; 4. a water cooler; 5. a normal top reflux drum; 51. a first naphtha pump; 52. a second naphtha pump; 6. a normal pressure gas tank; 7. roots blower; 9. a water washing tank; 8. injecting a desalting waterline; 91. a dewatering pipeline pump; 10. a gas evacuator; 11. a gas desulfurization tank; 111. a lean liquid pump; 12. and (3) a heating furnace.
Detailed Description
Example 1
As shown in fig. 1, the fractionation ultra-low pressure production device comprises an atmospheric tower 1, an atmospheric gas line 2, an air cooler 3, a water cooler 4 and a normal top reflux tank 5, wherein the lower part of the normal top reflux tank 5 is respectively connected with a first naphtha pump 51 and a second naphtha pump 52, the upper part of the normal top reflux tank 5 is respectively connected with an atmospheric gas tank 6, the atmospheric gas tank 6 is connected with a water washing tank 9, a Roots blower 7 is arranged between the connection pipes of the atmospheric gas tank 6 and the water washing tank 9, the lower part of the water washing tank 9 is connected with a water removal pipeline pump 91, the upper part of the water washing tank 9 is respectively connected with a salt injection water line 8 and a gas evacuator 10, the gas evacuator 10 is connected with the upper part of a gas desulfurization tank 11, the lower part of the gas desulfurization tank 11 is connected with the gas evacuator 10 through a lean liquid pump 111, and the upper part of the gas desulfurization tank 11 is respectively connected with a heating furnace 12.
The upper part of the normal pressure gas tank 6 is connected with a gas phase pipeline, and the normal pressure gas tank 6 is connected with a Roots blower 7 through the gas phase pipeline.
The liquid naphtha in the normal top reflux pump is sent out by providing a first naphtha pump 51 and a second naphtha pump 52.
Two pipelines are arranged at the upper part of the normal top reflux tank 5 and are respectively connected with the water cooler 4 and the normal pressure gas tank 6.
Three pipelines are arranged at the upper part of the water washing tank 9 and are respectively connected with the Roots blower 7, the salt injection and removal waterline 8 and the gas evacuator 10.
Two pipelines are arranged at the upper part of the gas desulfurization tank 11 and are respectively connected with the gas evacuator 10 and the heating furnace 12.
Working process or working principle:
during operation, normal pressure gas in the normal pressure tower is connected with the air cooling through a normal pressure gas line for cooling, is connected with the water cooling for cooling, is connected with the normal top reflux tank, liquid phase naphtha is sent out through a first naphtha pump or a second naphtha pump and a standby pump, is connected with the normal pressure gas tank in a gas phase mode, is pumped into a water washing tank by a Roots blower for washing to remove salt substances and impurities, is connected with a salt injection waterline and a dewatering pipeline pump, and pumps salt-containing sewage into a sewage system, and the salt injection waterline is injected into the salt removal water inlet washing tank. The gas with salt washed out enters a desulfurization evacuator, is desulfurized in a gas desulfurization tank, the gas desulfurization tank is connected with a lean liquid pump, and the desulfurized gas is connected with a heating furnace for burning.
The description of the directions and the relative positional relationships of the structures, such as the description of the front, back, left, right, up and down, in the present utility model does not limit the present utility model, but is merely for convenience of description.
Claims (6)
1. The utility model provides a fractional distillation ultra-low pressure apparatus for producing, a serial communication port, connect atmospheric pressure gas line (2) in proper order including atmospheric tower (1), air cooler (3), water cooler (4) and normal top reflux drum (5), first naphtha pump (51) and second naphtha pump (52) are connected respectively to normal top reflux drum (5) lower part, normal top reflux drum (5) upper portion is connected atmospheric pressure gas jar (6) alone in addition, atmospheric pressure gas jar (6) are connected water wash tank (9), be equipped with Roots blower (7) between atmospheric pressure gas jar (6) and water wash tank (9) connecting pipe, water wash tank (9) lower part is connected dehydration pipeline pump (91), water wash tank (9) upper portion is connected annotating desalting waterline (8) and gas evacuator (10) respectively, gas desulfurization tank (11) upper portion is connected through lean liquid pump (111) connection gas evacuator (10), gas desulfurization tank (11) upper portion is connected heating furnace (12) alone in addition.
2. The fractional distillation ultra-low pressure production device according to claim 1, wherein the upper part of the normal pressure gas tank (6) is connected with a gas phase pipeline, and the normal pressure gas tank (6) is connected with a Roots blower (7) through the gas phase pipeline.
3. The fractionation ultra low pressure production apparatus according to claim 1, wherein the liquid phase naphtha in the overhead reflux pump is sent out by providing a first naphtha pump (51) and a second naphtha pump (52).
4. A fractionation ultra low pressure production apparatus according to any one of claims 1 to 3, wherein two lines are provided at the upper part of the normal top reflux drum (5), the two lines being connected to the water cooler (4) and the normal pressure gas drum (6), respectively.
5. The fractionation ultra-low pressure production apparatus as claimed in claim 4, wherein three pipelines are provided at the upper part of the water washing tank (9), and the three pipelines are respectively connected with the Roots blower (7), the salt injection water line (8) and the gas evacuator (10).
6. The fractionation ultra-low pressure production apparatus as claimed in claim 5, wherein two lines are provided at the upper portion of the gas desulfurization tank (11), the two lines being connected to the gas evacuator (10) and the heating furnace (12), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222089691.XU CN219117382U (en) | 2022-08-09 | 2022-08-09 | Fractional distillation ultra-low pressure production device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222089691.XU CN219117382U (en) | 2022-08-09 | 2022-08-09 | Fractional distillation ultra-low pressure production device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219117382U true CN219117382U (en) | 2023-06-02 |
Family
ID=86520670
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222089691.XU Active CN219117382U (en) | 2022-08-09 | 2022-08-09 | Fractional distillation ultra-low pressure production device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219117382U (en) |
-
2022
- 2022-08-09 CN CN202222089691.XU patent/CN219117382U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20231127 Granted publication date: 20230602 |