CN112808000A - Square desulfurizing tower and method - Google Patents
Square desulfurizing tower and method Download PDFInfo
- Publication number
- CN112808000A CN112808000A CN202110110996.1A CN202110110996A CN112808000A CN 112808000 A CN112808000 A CN 112808000A CN 202110110996 A CN202110110996 A CN 202110110996A CN 112808000 A CN112808000 A CN 112808000A
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- flue gas
- tower body
- main
- throat
- square
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/06—Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour
Abstract
The invention discloses a square desulfurizing tower, which comprises a main tower body, wherein the top of the main tower body is provided with a smoke outlet, and the bottom of the main tower body is provided with a discharge pipe; the main tower body is communicated with a main engine flue gas throat and an auxiliary engine flue gas throat, and the front sections of the main engine flue gas throat and the auxiliary engine flue gas throat are provided with pre-cooling spray devices; the joints of the main machine flue gas throat, the auxiliary machine flue gas throat and the main tower body are provided with desalters for preventing washing water from entering the flue gas throat; a spraying layer is arranged inside the main tower body, and comprises a lower layer spraying device, a middle and upper layer spraying device and an upper layer spraying device which are sequentially arranged from bottom to top; a demister is arranged above the spraying layer, and demister cleaning devices are arranged at the upper end and the lower end of the demister; according to the invention, the desulfurization tower is modularly designed and designed into the square tower body, so that the square desulfurization tower can be rapidly produced and installed in batches, the design and production cost is greatly saved, and the square desulfurization tower has the advantages of convenience in use and maintenance, high flexibility and the like.
Description
Technical Field
The invention relates to a desulfurizing tower and a method, in particular to a square desulfurizing tower and a method.
Background
The international maritime organization maritime environmental protection and protection committee 71 at the meeting in london in 2017, again clearly insisting that vessels sailing globally from 1/1 of 2020 must use low sulphur oils with sulphur contents below 0.5% m/m, or use approved tail gas treatment systems or other technical methods to ensure that the total emission of sulphide from the vessel does not exceed 2.0 g/kWh. At present, three measures can meet the requirements of the convention on sulfur emission: the low-sulfur fuel oil is used, the ship exhaust gas desulfurization device is adopted, and LNG is used as an alternative fuel. At present, most ships pass through an emission control area and adopt an oil change method to meet the requirement of a convention, but the oil change method has high cost and insufficient low-sulfur fuel supply, so that the adoption of a ship exhaust gas desulfurization device becomes a mainstream method.
The existing traditional desulfurization tower body is huge in size, inflexible in installation and high in transportation cost, and the cargo capacity of a ship is influenced; in addition, the traditional desulfurizing tower needs to be designed and produced according to the difference of the exhaust amount of each ship, so that the design and production cost is greatly increased, and the flexibility is poor.
Disclosure of Invention
In order to solve the defects of the prior art, the invention provides a square desulfurizing tower and a method.
In order to solve the technical problems, the invention adopts the technical scheme that: a square desulfurizing tower comprises a main tower body, wherein the top of the main tower body is provided with a smoke outlet, and the bottom of the main tower body is provided with a discharge pipe; the main tower body is communicated with a main engine flue gas throat and an auxiliary engine flue gas throat, and the front sections of the main engine flue gas throat and the auxiliary engine flue gas throat are provided with pre-cooling spray devices; the joints of the main machine flue gas throat, the auxiliary machine flue gas throat and the main tower body are provided with desalters for preventing washing water from entering the flue gas throat;
a spraying layer is arranged inside the main tower body, and comprises a lower layer spraying device, a middle and upper layer spraying device and an upper layer spraying device which are sequentially arranged from bottom to top; the top on spraying layer is provided with the defroster, and the upper end, the lower extreme of defroster all are provided with defroster belt cleaning device.
Furthermore, the middle part of the tower body of the main tower body is composed of a tower body module, and the tower body module is square.
Furthermore, the interior of the tower body module is hollow, and the upper end and the lower end of the tower body module are both provided with connecting flanges; a lifting lug is arranged at the upper end of the tower body module; the lower port of the tower body module is circumferentially provided with a baffle plate, and the baffle plate is used for butt joint with the tower body module below and preventing leakage.
Furthermore, the outlet of the main engine flue gas throat and the outlet of the auxiliary engine flue gas throat are provided with a rectifying plate, and the rectifying plate is fixed inside the main tower body.
Furthermore, a main engine flue gas temperature sensor interface and an auxiliary engine flue gas temperature sensor interface are respectively arranged at the outlets of the main engine flue gas throat and the auxiliary engine flue gas throat, and the main engine flue gas temperature sensor interface and the auxiliary engine flue gas temperature sensor interface are respectively connected with temperature sensors.
Furthermore, the upper end and the lower end of the demister are both provided with a pressure difference sensor interface.
Furthermore, a smoke sampling interface is arranged on the smoke outlet and connected with a smoke detector.
Furthermore, a low liquid level alarm and a high liquid level alarm are arranged at the lower part of the main tower body, and the high liquid level alarm is positioned above the low liquid level alarm.
The working method of the square desulfurizing tower comprises the following steps:
the flow direction of the flue gas in the square desulfurizing tower is as follows:
flue gas of a ship power device enters a main engine flue gas throat and an auxiliary engine flue gas throat respectively through a main engine flue gas inlet and an auxiliary engine flue gas inlet, the flue gas entering the main engine flue gas throat and the auxiliary engine flue gas throat enters the interior of a main tower body after being pre-cooled and sprayed, the flue gas enters the main tower body and then is rectified through a rectifying plate, the flue gas can uniformly pass through a spraying layer, the flue gas enters a demister after being sprayed and washed through four layers of the spraying layer, the flue gas is discharged to the atmosphere from a flue gas outlet after being qualified by sampling inspection through a flue gas detector connected with a flue gas sampling interface after being sprayed and washed through a demister washing device;
the flow direction of the washing water in the square desulfurizing tower is as follows:
washing water simultaneously enters a lower layer spraying device, a middle and upper layer spraying device, an upper layer spraying device, a pre-cooling spraying device and a demister cleaning device, and the washing water enters the interior of the main tower body, falls after being sprayed and atomized and undergoes chemical reaction with rising flue gas, so that sulfur dioxide in the original flue gas is absorbed; the falling washing water falls to the bottom of the main tower body and is discharged through the discharge pipe.
According to the invention, the desulfurization tower is modularly designed and designed into the square tower body, so that the square desulfurization tower can be rapidly produced and installed in batches, the design and production cost is greatly saved, the space can be saved when a plurality of desulfurization towers are connected in parallel, and the square desulfurization tower has the advantages of convenience in use and maintenance, high flexibility and the like.
Drawings
FIG. 1 is a schematic view showing the structure of a square-type desulfurizing tower according to the present invention.
Fig. 2 is a schematic view of the internal structure of fig. 1.
Fig. 3 is a schematic structural view of a tower module.
In the figure: 1. a smoke outlet; 2. a discharge pipe; 3. a tower module; 4. a host smoke throat; 5. an auxiliary engine flue gas throat; 6. a pre-cooling spray device; 7. a desalter; 8. a rectifying plate; 9. a lower layer spray device; 10. middle and lower layer spraying devices; 11. a middle and upper layer spraying device; 12. an upper spray device; 13. a demister cleaning device; 14. a host smoke temperature sensor interface; 15. an auxiliary engine flue gas temperature sensor interface; 16. a differential pressure sensor interface; 17. a flue gas sampling interface; 18. a low liquid level alarm; 19. a high liquid level alarm; 20. a connecting flange; 21. lifting lugs; 22. a baffle plate; 23. a flue gas inlet of the main machine; 24. and an auxiliary machine smoke inlet.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and 2, a square desulfurizing tower comprises a main tower body, wherein the top of the main tower body is provided with a smoke outlet 1, and the bottom of the main tower body is provided with a discharge pipe 2; a smoke sampling interface 17 is arranged on the smoke outlet 1, and the smoke sampling interface 17 is connected with a smoke detector; the lower part of the main tower body is provided with a low liquid level alarm 18 and a high liquid level alarm 19, and the high liquid level alarm is positioned above the low liquid level alarm.
The main tower body is communicated with a main engine flue gas throat 4 and an auxiliary engine flue gas throat 5, and the front sections of the main engine flue gas throat 4 and the auxiliary engine flue gas throat 5 are provided with pre-cooling spray devices 6; the main engine flue gas throat and the auxiliary engine flue gas throat are respectively provided with a main engine flue gas temperature sensor interface 14 and an auxiliary engine flue gas temperature sensor interface 15, and the main engine flue gas temperature sensor interface 14 and the auxiliary engine flue gas temperature sensor interface 15 are respectively connected with a temperature sensor. The joints of the main machine flue gas throat 4, the auxiliary machine flue gas throat 5 and the main tower body are provided with a desalter 7 for preventing washing water from entering the flue gas throat; the exit of host computer flue gas throat 4, auxiliary engine flue gas throat 5 is provided with cowling panel 8, and cowling panel 8 is fixed in inside the main tower body, and the setting of cowling panel can make the flue gas evenly through spraying the layer.
A spraying layer is arranged inside the main tower body, and comprises a lower layer spraying device 9, a middle and lower layer spraying device 10, a middle and upper layer spraying device 11 and an upper layer spraying device 12 which are sequentially arranged from bottom to top; a demister is arranged above the spraying layer, demister cleaning devices 13 are arranged at the upper end and the lower end of the demister, and nozzles of the demister cleaning devices face the demister (except for discharge nozzles); the upper end and the lower end of the demister are both provided with a pressure difference sensor interface 16 for detecting the smoke pressure.
As shown in fig. 3, the middle part of the main tower body is composed of a tower body module 3, and the tower body module is square. The modular design can realize that the desulfurizing tower adjusts the main tower body according to the change of boats and ships displacement. The interior of the tower body module 3 is hollow, and the upper end and the lower end of the tower body module 3 are both provided with connecting flanges 20; the upper end of the tower body module 3 is provided with a lifting lug 21; the lower port of the tower body module 3 is circumferentially provided with a baffle 22, and the baffle is used for abutting joint with the tower body module below and preventing leakage.
The working method of the square desulfurizing tower comprises the following steps:
the flow direction of the flue gas in the square desulfurizing tower is as follows:
flue gas of ship power equipment enters a main engine flue gas throat 4 and an auxiliary engine flue gas throat 5 through a main engine flue gas inlet 23 and an auxiliary engine flue gas inlet 24 respectively, the flue gas entering the main engine flue gas throat 4 and the auxiliary engine flue gas throat 5 enters the interior of a main tower body after being pre-cooled and sprayed, the flue gas enters the main tower body and then is rectified through a rectifying plate, the flue gas can uniformly pass through a spraying layer, the flue gas enters a demister after being sprayed and washed through four layers of the spraying layer, the flue gas is sprayed and washed by a demister washing device and then is discharged to the atmosphere from a flue gas outlet 1 after being qualified through sampling inspection by a flue gas detector connected with a flue gas sampling interface 17;
the flow direction of the washing water in the square desulfurizing tower is as follows:
washing water simultaneously enters a lower layer spraying device 9, a middle and lower layer spraying device 10, a middle and upper layer spraying device 11, an upper layer spraying device 12, a pre-cooling spraying device 6 and a demister cleaning device 13, and the washing water enters the interior of the main tower body, falls after being sprayed and atomized and undergoes chemical reaction with rising flue gas, so that sulfur dioxide in the original flue gas is absorbed; the falling washing water falls to the bottom of the main tower body and is discharged through the discharge pipe 2.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make variations, modifications, additions or substitutions within the technical scope of the present invention.
Claims (9)
1. A square desulfurizing tower is characterized in that: comprises a main tower body, wherein the top of the main tower body is provided with a smoke outlet (1), and the bottom of the main tower body is provided with a discharge pipe (2); the main tower body is communicated with a main engine flue gas throat (4) and an auxiliary engine flue gas throat (5), and the front sections of the main engine flue gas throat (4) and the auxiliary engine flue gas throat (5) are provided with pre-cooling spray devices (6); the joints of the main machine flue gas throat (4), the auxiliary machine flue gas throat (5) and the main tower body are provided with desalters (7) which are used for preventing washing water from entering the flue gas throat;
a spraying layer is arranged inside the main tower body and comprises a lower layer spraying device (9), a middle and lower layer spraying device (10), a middle and upper layer spraying device (11) and an upper layer spraying device (12) which are sequentially arranged from bottom to top; a demister is arranged above the spraying layer, and demister cleaning devices (13) are arranged at the upper end and the lower end of the demister.
2. A square type desulfurizing tower according to claim 1, wherein: the middle part of the tower body of the main tower body is composed of a tower body module (3), and the tower body module is square.
3. A square type desulfurizing tower according to claim 2, wherein: the interior of the tower body module (3) is hollow, and the upper end and the lower end of the tower body module (3) are both provided with connecting flanges (20); a lifting lug (21) is arranged at the upper end of the tower body module (3); the lower port of tower body module (3) is provided with baffle (22) along circumference, and the baffle is used for butt joint and the leakage prevention with the tower body module of below.
4. A square type desulfurizing tower according to claim 3, wherein: and the outlets of the main machine smoke throat (4) and the auxiliary machine smoke throat (5) are provided with a rectifying plate (8), and the rectifying plate (8) is fixed inside the main tower body.
5. The square type desulfurization tower according to claim 4, wherein: the main engine smoke throat and the auxiliary engine smoke throat are respectively provided with a main engine smoke temperature sensor interface (14) and an auxiliary engine smoke temperature sensor interface (15) at the outlets, and the main engine smoke temperature sensor interface (14) and the auxiliary engine smoke temperature sensor interface (15) are respectively connected with a temperature sensor.
6. A square type desulfurizing tower according to claim 5, wherein: the upper end and the lower end of the demister are both provided with a differential pressure sensor interface (16).
7. A square type desulfurizing tower according to claim 6, wherein: a smoke sampling interface (17) is arranged on the smoke outlet (1), and the smoke sampling interface (17) is connected with a smoke detector.
8. A square type desulfurizing tower according to claim 7, wherein: the lower part of the main tower body is provided with a low liquid level alarm (18) and a high liquid level alarm (19), and the high liquid level alarm is positioned above the low liquid level alarm.
9. A method of operating a square-type desulfurization tower according to any one of claims 1 to 8, characterized in that: the working method comprises the following steps:
the flow direction of the flue gas in the square desulfurizing tower is as follows:
flue gas of ship power equipment enters a main engine flue gas throat (4) and an auxiliary engine flue gas throat (5) through a main engine flue gas inlet (23) and an auxiliary engine flue gas inlet (24), the flue gas entering the main engine flue gas throat (4) and the auxiliary engine flue gas throat (5) enters the interior of a main tower body after being pre-cooled and sprayed, the flue gas enters the main tower body and then is rectified through a rectifying plate, the flue gas can uniformly pass through a spraying layer, the flue gas enters a demister after being sprayed and washed through four layers of the spraying layer, the flue gas is sprayed and washed through a demister washing device and then is qualified through a flue gas detector connected with a flue gas sampling interface (17), and the flue gas is discharged to the atmosphere from a flue gas outlet (1);
the flow direction of the washing water in the square desulfurizing tower is as follows:
washing water simultaneously enters a lower layer spraying device (9), a middle and lower layer spraying device (10), a middle and upper layer spraying device (11), an upper layer spraying device (12), a pre-cooling spraying device (6) and a demister cleaning device (13), and the washing water enters the interior of the main tower body, falls after being sprayed and atomized and undergoes chemical reaction with rising flue gas, so that sulfur dioxide in the original flue gas is absorbed; the falling washing water falls to the bottom of the main tower body and is discharged through the discharge pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110110996.1A CN112808000A (en) | 2021-01-27 | 2021-01-27 | Square desulfurizing tower and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110110996.1A CN112808000A (en) | 2021-01-27 | 2021-01-27 | Square desulfurizing tower and method |
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| Publication Number | Publication Date |
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| CN112808000A true CN112808000A (en) | 2021-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110110996.1A Pending CN112808000A (en) | 2021-01-27 | 2021-01-27 | Square desulfurizing tower and method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114653202A (en) * | 2022-03-31 | 2022-06-24 | 成都达奇环境科技有限公司 | Catalytic flue gas desulfurization tower |
| CN114950127A (en) * | 2022-03-31 | 2022-08-30 | 成都达奇环境科技有限公司 | Catalytic flue gas desulfurization tower |
| CN114950128A (en) * | 2022-03-31 | 2022-08-30 | 成都达奇环境科技有限公司 | Catalytic flue gas desulfurization tower |
| CN115282767A (en) * | 2022-03-31 | 2022-11-04 | 成都达奇环境科技有限公司 | Catalytic flue gas desulfurization tower |
| CN114950128B (en) * | 2022-03-31 | 2024-04-19 | 成都达奇科技股份有限公司 | Catalytic flue gas desulfurization tower |
-
2021
- 2021-01-27 CN CN202110110996.1A patent/CN112808000A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114653202A (en) * | 2022-03-31 | 2022-06-24 | 成都达奇环境科技有限公司 | Catalytic flue gas desulfurization tower |
| CN114950127A (en) * | 2022-03-31 | 2022-08-30 | 成都达奇环境科技有限公司 | Catalytic flue gas desulfurization tower |
| CN114950128A (en) * | 2022-03-31 | 2022-08-30 | 成都达奇环境科技有限公司 | Catalytic flue gas desulfurization tower |
| CN115282767A (en) * | 2022-03-31 | 2022-11-04 | 成都达奇环境科技有限公司 | Catalytic flue gas desulfurization tower |
| CN114950128B (en) * | 2022-03-31 | 2024-04-19 | 成都达奇科技股份有限公司 | Catalytic flue gas desulfurization tower |
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