CN218047260U - Absorption tower amine liquid phase splitting device - Google Patents
Absorption tower amine liquid phase splitting device Download PDFInfo
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- CN218047260U CN218047260U CN202221522101.1U CN202221522101U CN218047260U CN 218047260 U CN218047260 U CN 218047260U CN 202221522101 U CN202221522101 U CN 202221522101U CN 218047260 U CN218047260 U CN 218047260U
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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
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- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/40—Capture or disposal of greenhouse gases of CO2
Abstract
The utility model provides an absorption tower amine liquid phase splitting device, including phase splitting jar, absorption tower, flue gas draught fan, first heavy phase pump, regenerator column, second heavy phase pump and light phase backwash pump, wherein: the absorption tower is connected with the phase splitting tank through a rich liquid pipeline, the phase splitting tank is connected with the absorption tower through a light phase reflux pump and a pipeline, and the flue gas induced draft fan connects the flue gas inlet pipe with the absorption tower through the pipeline; the absorption tower is connected to the regeneration tower through a first heavy phase pump and a pipeline, and the regeneration tower is connected with the absorption tower through a second heavy phase pump. The phase splitting tank, the absorption tower and the regeneration tower are arranged, so that heavy phase liquid and light phase liquid in rich liquid can be separated, the rich liquid amount in the regeneration tower can be reduced, and the regeneration energy consumption of the regeneration tower can be reduced; the product yield can be increased.
Description
Technical Field
The utility model discloses amine liquid phase splitting technical field especially relates to absorption tower amine liquid phase splitting device.
Background
The invention relates to a method for changing amine liquid in an absorption tower into rich liquid after absorbing carbon dioxide in flue gas, which aims to better quickly stratify the rich liquid into heavy phase liquid and light phase liquid. Therefore, the invention discloses an amine liquid phase separation device system of an absorption tower. However, the existing amine liquid phase separation device still cannot separate heavy phase liquid and light phase liquid in rich liquid, cannot reduce the amount of the rich liquid to a regeneration tower, and cannot achieve the aim of reducing the regeneration energy consumption of the regeneration tower; the product yield cannot be increased.
Therefore, the invention of the absorption tower amine liquid phase separation device is very necessary.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an absorption tower amine liquid phase splitting device to solve the problems that the existing amine liquid phase splitting device still can not separate heavy phase liquid and light phase liquid in rich liquid, can not reduce the rich liquid amount in a regeneration tower, and can not reduce the regeneration energy consumption of the regeneration tower; the product yield cannot be increased. Absorption tower amine liquid phase splitting device, including phase splitting jar, absorption tower, flue gas draught fan, first heavy phase pump, regenerator column, second heavy phase pump and light phase backwash pump, wherein: the absorption tower is connected with the phase splitting tank through a rich liquid pipeline, the phase splitting tank is connected with the absorption tower through a light phase reflux pump and a pipeline, and the flue gas induced draft fan connects the flue gas inlet pipe with the absorption tower through the pipeline; the absorption tower is connected to the regeneration tower through a first heavy phase pump and a pipeline, and the regeneration tower is connected with the absorption tower through a second heavy phase pump.
The phase separation tank comprises a liquid inlet, a phase separation main body cavity, a spoiler, heavy phase liquid, a heavy phase liquid outlet, a phase separation plate, a light phase liquid outlet, light phase liquid, a light phase liquid level meter and a heavy phase liquid level meter, the liquid inlet is welded at one side of the phase separation main body cavity, and the spoiler is welded at the front end inside the phase separation main body cavity; the heavy phase liquid outlet is welded at the bottom of the phase splitting main body cavity, the phase splitting plate is welded at the rear end in the phase splitting main body cavity, and the light phase liquid outlet is welded at the other side of the phase splitting main body cavity; the light phase liquid level meter is arranged on the outer side of the split-phase main body cavity, and the heavy phase liquid level meter is positioned on the inner sides of the spoiler and the split-phase plate.
The phase separation tank adopts a group of polypropylene anti-corrosion phase separation tanks, the phase separation tank can be divided into a rich liquid flow resistance area A, a rich liquid separation area B, a heavy phase liquid outlet area C and a light phase liquid outlet area D through a spoiler and a phase separation plate, the heavy phase liquid in the phase separation tank is positioned in the rich liquid separation area B, the light phase liquid in the phase separation tank is positioned in the light phase liquid outlet area D, the development achievement of the chemical absorption method technology is favorably fully applied, and the chemical absorption method for removing CO2 is widely and deeply researched and applied due to high efficiency and large treatment capacity. The rich liquid flow resistance area A of the phase separation tank is rich liquid flow velocity reduction and reaction force, and the larger the specific gravity is, the larger the resistance force is, the easier the layering and the bottom sinking are; the phase separation tank rich liquid separation zone B provides time and separation space for rich liquid layering; controlling the heavy phase liquid outlet area C to the regeneration tower according to the heavy phase liquid quantity; and the light phase liquid outlet area D is controlled to the absorption tower according to the light phase liquid amount.
The absorption tower injects external flue gas into the absorption tower through the flue gas induced draft fan, the absorption tower adopts countercurrent operation, the flue gas injected into the absorption tower is contacted with air flowing upwards from the bottom, the liquid absorbing absorbate is discharged from the lower part of the absorption tower, the purified desulfurized flue gas is discharged outwards from the top of the tower, carbon dioxide in the flue gas is absorbed by amine liquid in the absorption tower, the amine liquid is enabled to generate rich liquid, the absorption tower is used for providing rich liquid generation for the phase splitting tank, and the rich liquid enters the phase splitting tank through the liquid inlet.
The regeneration tower adopts a desulfurization regeneration tower, and the regeneration tower is connected to the heavy phase liquid outlet inside the phase separation tank through a first heavy phase pump, and the regenerated gas inside the regeneration tower is discharged outwards through the regenerated gas outlet at the top of the regeneration tower, so that after the heavy phase liquid is sent out to the regeneration tower from the heavy phase liquid outlet, carbon dioxide in the heavy phase liquid is released in the regeneration tower, and the heavy phase liquid becomes amine liquid and returns to the absorption tower again to reuse the amine liquid.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses the setting of phase splitting jar is favorable to fully having used the development achievement of chemical absorption method technique, and chemical absorption method desorption CO2 is because of its efficient and handling capacity is big and is obtained extensive deep research and application. The rich liquid flow choking area A of the phase separation tank is used for reducing the flow speed of rich liquid and reacting force, and the higher the specific gravity is, the higher the blocking force is, the more easy the layering and bottom sinking are; the rich liquid separation zone B of the phase separation tank provides time and separation space for rich liquid layering; controlling the heavy phase liquid outlet area C to the regeneration tower according to the heavy phase liquid quantity; and the light phase liquid outlet area D is controlled to the absorption tower according to the light phase liquid amount.
2. The utility model discloses the setting of absorption tower is favorable to absorbing carbon dioxide in the flue gas through amine liquid in the absorption tower, makes amine liquid generate the rich liquid, and the absorption tower effect is for providing the formation of rich liquid to the jar that splits phase, and the rich liquid passes through the liquid entry and gets into the jar that splits phase.
3. The utility model discloses the setting of regenerator column is favorable to making heavy phase liquid send out the regenerator column back by heavy phase liquid export, and carbon dioxide releases in the regenerator column in heavy phase liquid, and heavy phase liquid becomes amine liquid, gets back to absorption tower reuse amine liquid again.
Drawings
Fig. 1 is a schematic diagram of the overall path of the present invention.
FIG. 2 is a schematic diagram of the phase separation tank of the present invention.
In the figure:
the device comprises a phase separation tank 11, a liquid inlet 1, a phase separation main body cavity 2, a spoiler 3, heavy phase liquid 4, a heavy phase liquid outlet 5, a phase separation plate 6, a light phase liquid outlet 7, light phase liquid 8, a light phase liquid level meter 9, a heavy phase liquid level meter 10, an absorption tower 12, a flue gas induced draft fan 13, a first heavy phase pump 14, a regeneration tower 15, a second heavy phase pump 16 and a light phase reflux pump 17.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
As shown in figures 1 to 2.
The utility model provides an absorption tower amine liquid phase splitting device, including phase splitting jar 11, absorption tower 12, flue gas draught fan 13, first heavy phase pump 14, regenerator column 15, second heavy phase pump 16 and light phase backwash pump 17, wherein: the absorption tower 12 is connected with the phase separation tank 11 through a rich liquid pipeline, the phase separation tank 11 is connected with the absorption tower 12 through a light phase reflux pump 17 and a pipeline, and the flue gas induced draft fan 13 connects a flue gas inlet pipe with the absorption tower 12 through a pipeline; the absorption tower 12 is connected to a regeneration tower 15 through a first heavy phase pump 14 and a pipeline, and the regeneration tower 15 is connected to the absorption tower 12 through a second heavy phase pump 16.
The phase separation tank 11 comprises a liquid inlet 1, a phase separation main body cavity 2, a spoiler 3, heavy phase liquid 4, a heavy phase liquid outlet 5, a phase separation plate 6, a light phase liquid outlet 7, light phase liquid 8, a light phase liquid level meter 9 and a heavy phase liquid level meter 10, wherein the liquid inlet 1 is welded at one side of the phase separation main body cavity 2, and the spoiler 3 is welded at the front end inside the phase separation main body cavity 2; the heavy phase liquid outlet 5 is welded at the bottom of the phase splitting main body cavity 2, the phase splitting plate 6 is welded at the rear end inside the phase splitting main body cavity 2, and the light phase liquid outlet 7 is welded at the other side of the phase splitting main body cavity 2; the light phase liquid level meter 9 is arranged outside the phase separation main body cavity 2, and the heavy phase liquid level meter 10 is arranged inside the spoiler 3 and the phase separation plate 6.
The phase separation tank 11 adopts a group of polypropylene anti-corrosion phase separation tanks, the phase separation tank 11 can be divided into a rich liquid choke area A, a rich liquid separation area B, a heavy phase liquid outlet area C and a light phase liquid outlet area D through a choke plate 3 and a phase separation plate 6, the heavy phase liquid 4 in the phase separation tank 11 is positioned in the rich liquid separation area B, and the light phase liquid 8 in the phase separation tank 11 is positioned in the light phase liquid outlet area D, so that the development results of the chemical absorption method technology are fully applied, and the chemical absorption method for removing CO2 is widely and deeply researched and applied due to high efficiency and large treatment capacity. The rich liquid flow resistance area A of the phase separation tank 11 is rich liquid flow velocity reduction and reaction force, and the larger the specific gravity is, the larger the resistance force is, the easier the layering and the bottom sinking are; the phase separation tank 11 rich solution separation zone B provides time and separation space for rich solution layering; the heavy phase liquid outlet area C is controlled to the regeneration tower 15 according to the heavy phase liquid quantity; the light phase liquid outlet region D is controlled to the absorption tower 12 according to the amount of the light phase liquid.
The absorption tower 12 injects outside flue gas into the absorption tower 12 through the flue gas induced draft fan 13, and the absorption tower 12 adopts countercurrent operation, the flue gas injected into the absorption tower 12 contacts with the air flowing from bottom to top, the liquid absorbing the absorbate is discharged from the lower part of the liquid, the purified desulfurized flue gas is discharged from the top of the tower, carbon dioxide in the flue gas is absorbed through the amine liquid in the absorption tower 12, the amine liquid is enabled to generate rich liquid, the absorption tower 12 is used for providing the generation of the rich liquid for the phase separation tank 11, and the rich liquid enters the phase separation tank 11 through the liquid inlet 1.
The regeneration tower 15 adopts a desulfurization regeneration tower, and the regeneration tower 15 is connected to the heavy phase liquid outlet 5 inside the phase separation tank 11 through the first heavy phase pump 14, and the regenerated gas inside the regeneration tower 15 is discharged outwards through the regenerated gas outlet at the top of the regeneration tower 15, so that after the heavy phase liquid 4 is sent out to the regeneration tower 15 from the heavy phase liquid outlet 5, carbon dioxide in the heavy phase liquid is released in the regeneration tower 15, and the heavy phase liquid becomes amine liquid and returns to the absorption tower 12 again to reuse the amine liquid.
The utility model provides an absorption tower amine liquid phase splitting device, this device system take following process:
the first drawing shows that: the absorption tower 12 and the regeneration tower 15 are positioned in the front and back process flows of the phase separation tank, amine liquid in the absorption tower 12 absorbs carbon dioxide in flue gas to form rich liquid, the rich liquid flows into the phase separation tank at the bottom of the absorption tower 12, heavy phase liquid enters the regeneration tower 15 for regeneration after being layered by the phase separation tank, and light phase liquid returns to the absorption tower 12 from a light phase liquid outlet 7 to absorb the carbon dioxide.
Shown in the second figure: the mixed liquor with different densities enters the phase separation tank 2 from the liquor inlet 1, and the flow velocity of the mixed liquor is not suitable for precipitation separation and needs to be reduced by the flow baffle 3.
The mixed liquid after the downward flow flows into the heavy phase chamber through the upper and lower ports of the spoiler 3, the mixed liquid is kept still and precipitated in the heavy phase chamber, the mixed liquid is layered due to different densities, the lower layer is heavy phase liquid 4, and the upper layer is light phase liquid 8. The heavy phase liquid 4 is sent out from a heavy phase liquid outlet 5; the light phase liquid 8 flows to the light phase chamber through the upper opening of the phase separation plate 6 and is sent out through the light phase liquid outlet 7.
The phase separation main body cavity 2 is equipped with a light phase liquid level meter 9 and a heavy phase liquid level meter 10 so as to monitor the liquid levels of light phase liquid and heavy phase liquid in real time. The light phase liquid level meter 9 is a floating ball liquid level meter, and the heavy phase liquid level meter 10 is a radio frequency admittance interface meter with different specifications and models according to different density and conductivity of heavy phase liquid, so that the actually measured heavy phase liquid level is accurate.
Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.
Claims (5)
1. Absorption tower amine liquid phase splitting device, its characterized in that: including phase separation jar (11), absorption tower (12), flue gas draught fan (13), first heavy phase pump (14), regenerator column (15), second heavy phase pump (16) and light phase backwash pump (17), wherein: the absorption tower (12) is connected with the phase separation tank (11) through a rich liquid pipeline, the phase separation tank (11) is connected with the absorption tower (12) through a light phase reflux pump (17) and a pipeline, and the flue gas induced draft fan (13) connects a flue gas inlet pipe with the absorption tower (12) through a pipeline; the absorption tower (12) is connected to a regeneration tower (15) through a first heavy phase pump (14) and a pipeline, and the regeneration tower (15) is connected with the absorption tower (12) through a second heavy phase pump (16).
2. The absorption tower amine liquid phase separation device according to claim 1, wherein: the phase splitting tank (11) comprises a liquid inlet (1), a phase splitting main body cavity (2), a spoiler (3), heavy phase liquid (4), a heavy phase liquid outlet (5), a phase splitting plate (6), a light phase liquid outlet (7), light phase liquid (8), a light phase liquid level meter (9) and a heavy phase liquid level meter (10), the liquid inlet (1) is welded on one side of the phase splitting main body cavity (2), and the spoiler (3) is welded at the front end inside the phase splitting main body cavity (2); the heavy phase liquid outlet (5) is welded at the bottom of the phase splitting main body cavity (2), the phase splitting plate (6) is welded at the rear end inside the phase splitting main body cavity (2), and the light phase liquid outlet (7) is welded at the other side of the phase splitting main body cavity (2); the light phase liquid level meter (9) is arranged on the outer side of the phase splitting main body cavity (2), and the heavy phase liquid level meter (10) is positioned on the inner sides of the spoiler (3) and the phase splitting plate (6).
3. The absorption tower amine liquid phase separation device according to claim 1, wherein: the phase separation tank (11) adopts a group of polypropylene anti-corrosion phase separation tanks, the phase separation tank (11) can be divided into a rich liquid blocking area A, a rich liquid separation area B, a heavy phase liquid outlet area C and a light phase liquid outlet area D through a spoiler (3) and a phase separation plate (6), the heavy phase liquid (4) inside the phase separation tank (11) is located inside the rich liquid separation area B, and the light phase liquid (8) inside the phase separation tank (11) is located inside the light phase liquid outlet area D.
4. The absorption tower amine liquid phase separation device according to claim 1, wherein: the absorption tower (12) injects outside flue gas into the absorption tower (12) through a flue gas induced draft fan (13), the absorption tower (12) adopts countercurrent operation, the flue gas injected into the absorption tower (12) is contacted with air flowing upwards from the bottom, the liquid absorbing the absorbing substances is discharged from the lower part of the absorption tower, and the purified desulfurization flue gas is discharged from the top of the tower outwards.
5. The absorption tower amine liquid phase separation device according to claim 1, wherein: the regeneration tower (15) adopts a desulfurization regeneration tower, the regeneration tower (15) is connected to a heavy phase liquid outlet (5) in the phase separation tank (11) through a first heavy phase pump (14), and the regeneration gas in the regeneration tower (15) is discharged outwards through a regeneration gas outlet at the top of the regeneration tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221522101.1U CN218047260U (en) | 2022-06-17 | 2022-06-17 | Absorption tower amine liquid phase splitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221522101.1U CN218047260U (en) | 2022-06-17 | 2022-06-17 | Absorption tower amine liquid phase splitting device |
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| Publication Number | Publication Date |
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| CN218047260U true CN218047260U (en) | 2022-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221522101.1U Active CN218047260U (en) | 2022-06-17 | 2022-06-17 | Absorption tower amine liquid phase splitting device |
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| CN (1) | CN218047260U (en) |
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- 2022-06-17 CN CN202221522101.1U patent/CN218047260U/en active Active
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