CN111013389A - Washing tower for ship tail gas treatment - Google Patents
Washing tower for ship tail gas treatment Download PDFInfo
- Publication number
- CN111013389A CN111013389A CN201911400589.3A CN201911400589A CN111013389A CN 111013389 A CN111013389 A CN 111013389A CN 201911400589 A CN201911400589 A CN 201911400589A CN 111013389 A CN111013389 A CN 111013389A
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- CN
- China
- Prior art keywords
- spraying
- cylinder body
- pipe
- tower
- gas treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005406 washing Methods 0.000 title claims abstract description 38
- 238000005507 spraying Methods 0.000 claims abstract description 67
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 29
- 239000003546 flue gas Substances 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 23
- 239000007789 gas Substances 0.000 claims abstract description 18
- 239000002351 wastewater Substances 0.000 claims abstract description 9
- 239000002002 slurry Substances 0.000 claims abstract description 7
- 239000007921 spray Substances 0.000 claims description 24
- 238000005201 scrubbing Methods 0.000 claims description 2
- 239000003599 detergent Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002912 waste gas Substances 0.000 description 8
- 238000006477 desulfuration reaction Methods 0.000 description 7
- 230000023556 desulfurization Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 229910001039 duplex stainless steel Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a washing tower for ship tail gas treatment, which comprises a cylinder body, wherein an upper end enclosure is arranged at the upper part of the cylinder body, a clean flue gas outlet is arranged on the upper end enclosure, a lower end enclosure which protrudes downwards and is in a conical shape and a support used for lifting the cylinder body to a certain height are arranged at the lower part of the cylinder body, a washing wastewater outlet is arranged on the lower end enclosure, a spraying pipe system is arranged inside the cylinder body, the spraying pipe system comprises a main spraying pipe with a sealed bottom and a spraying liquid inlet short pipe which is arranged at the upper part of the main spraying pipe and is vertical to the main spraying pipe, a spraying slurry inlet is arranged on the spraying liquid inlet short pipe, a spiral column plate is arranged on the periphery of the main spraying pipe, and a certain distance is. The invention has compact structure, reasonable design and good washing effect.
Description
Technical Field
The invention relates to the technical field of marine desulfurization, in particular to a washing tower for treating ship tail gas.
Background
Exhaust gas from ships usually contains harmful gases and smoke, and if the exhaust gas is not properly treated and discharged directly, it pollutes the air. The International Maritime Organization (IMO) stipulates that from 2020 onwards, a new upper limit on sulfur oxide emissions of 0.5% will be in force worldwide. Among the schemes for reducing the discharge amount of sulfur oxides, the scheme of additionally installing a ship tail gas washing tower is the most common technical scheme. At present, most of the spraying washing towers are used for introducing waste gas discharged by a ship engine into the washing tower from the bottom of the washing tower, and a plurality of spraying pipe layers are uniformly distributed on the high space inside the washing tower. The flue gas vertically diffuses upwards in the washing tower and simultaneously contacts and reacts with liquid drops sprayed by the spray pipe layer, so that the desulfurization effect is achieved; meanwhile, the washed clean flue gas is discharged from the top of the washing tower, and the washing liquid is discharged from the bottom of the washing tower, but the technical scheme has the following problems: 1. a device for preventing the washing liquid from flowing backwards into the waste gas inlet and flowing backwards into the engine is required to be arranged; 2. the radial distribution of the waste gas in the tower body is uneven, and the desulfurization efficiency is affected; 3. waste gas carries out the interior back of tower from the bottom and follows the tower body and vertically upwards through spraying the layer washing back, directly discharges from top exhanst gas outlet, and flue gas dwell time is shorter in the tower, for reaching the desulfurization effect of ideal, needs to design great tower body diameter and higher tower body height, therefore occupies great hull space to tower body manufacturing cost has been improved.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the washing tower for treating the ship tail gas, which has the advantages of compact structure, reasonable design and good washing effect.
In order to achieve the purpose, the invention adopts the following technical scheme:
a washing tower for ship tail gas treatment comprises a cylinder body, wherein an upper seal head is arranged at the upper part of the cylinder body, a clean flue gas outlet is arranged on the upper seal head, a lower seal head which protrudes downwards and is in a conical shape and a support used for lifting the cylinder body to a certain height are arranged at the lower part of the cylinder body, a washing wastewater outlet is arranged on the lower seal head, a spraying pipe system is arranged inside the cylinder body, the spraying pipe system comprises a main spraying pipe with a sealed bottom, a spraying liquid inlet short pipe and a nozzle, the spraying liquid inlet short pipe is arranged at the upper part of the main spraying pipe and is vertical to the main spraying pipe, a spraying slurry inlet is arranged on the spraying liquid inlet short pipe, a spiral column plate is arranged at the periphery of the main spraying pipe, a certain distance is reserved from the bottom of the spiral column plate to the bottom of the lower seal head, and the periphery of the spiral column, the spraying main pipe is provided with a spraying pipe system arranged along the rotation direction of the flue, the tangential direction of the cylinder body is provided with a flue gas inlet, and the flue gas inlet corresponds to the bottom of the spiral tower plate.
And a demister is arranged at the upper part of the cylinder body and close to the clean flue gas outlet.
The lateral wall of barrel is equipped with a plurality of manholes, the manhole arranges from top to bottom in proper order.
The outside of barrel is equipped with a plurality of and draws the ear.
The lower end enclosure is a conical end enclosure with a half vertex angle of 60-80 degrees.
The spraying pipe system further comprises spraying branch pipes arranged on the spraying main pipe, the nozzles are located on the spraying branch pipes, and the spraying branch pipes are uniformly distributed below the spiral tower plate.
The spray nozzles are directly arranged on the side wall of the spray header.
The invention has the beneficial effects that: 1. the washing waste water outlet is positioned at the bottom of the cylinder, and the flue gas inlet is away from the bottom of the cylinder by a certain distance, so that waste water flows out from the washing waste water outlet, and a device for preventing washing liquid from flowing back into the engine from the waste gas inlet is not required to be additionally arranged; 2. waste gas upwards discharges along the spiral column plate, makes waste gas distribute evenly in the tower body, and waste gas fully contacts with the spray liquid, under the prerequisite of guaranteeing desulfurization effect, dwindles the required tower body space of realization desulfurization greatly, has reduced equipment size, has not only practiced thrift equipment manufacturing cost, has still reduced the shared hull space of installation scrubbing tower.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a schematic view of the structure of section A-A in FIG. 1;
FIG. 4 is a schematic view of the assembly of the sparger piping and spiral tray of the present invention;
FIG. 5 is a top view of the shower piping and spiral tray assembly of the present invention;
FIG. 6 is a schematic diagram of a spiral tray of the present invention;
FIG. 7 is a schematic view of the shower system of the present invention;
FIG. 8 is a schematic view of the nozzle spray of the present invention;
FIG. 9 is a schematic view of another spray pattern of the present invention showing the assembly of the spray piping and the spiral tray;
FIG. 10 is a top view of an alternative spray pattern of the present invention showing the spray piping and spiral tray assembly;
FIG. 11 is a schematic view of another spray pattern of the present invention;
FIG. 12 is a schematic view of another form of the present invention.
In the figure: 1. a support; 2. a lower end enclosure; 3. a barrel; 4. a demister; 5. an upper end enclosure; 6. pulling the lug; 7. fixing the pull lug; 8. a spiral tray; 9. a spray inlet flange; 10. a spray liquid inlet short pipe; 11. bending the pipe; 12. spraying branch pipes; 13. a spray branch pipe sealing plate; 14. a nozzle; 15. a main spray pipe; 16. a pipe cap; 17. a flue gas inlet; 18. a purified flue gas outlet; 19. a spraying slurry inlet; 20. a washing wastewater outlet; 21. a manhole.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description below:
as shown in fig. 1 to 8, a washing tower for ship tail gas treatment comprises a lower end enclosure 2, a cylinder 3 and an upper end enclosure 5 which are welded in sequence, the outer part of the cylinder body 3 is provided with a plurality of pull lugs 6 and fixed pull lugs 7 which are respectively used for hoisting equipment and fixing pull supports after the equipment is installed in place, the lower seal head 2 is a conical seal head with a half vertex angle of 60-80 degrees, the conical angle is designed for quickly discharging washing wastewater at the bottom of the tower, the lower part of the lower end enclosure 2 is provided with a support 1 for supporting the cylinder 3, the support 1 is of a vertical structure, according to the size of the washing tower and the structure of the installation position of the ship body, the support 1 can be welded with the lower seal head 2 or the cylinder body 3, the center of the lower seal head 2 is provided with a washing liquid outlet 20, a plurality of manholes 21 are formed in the cylinder 3 and the upper end enclosure 5, and the manholes 21 are round so as to facilitate installation of equipment internals and maintenance of the equipment;
a spraying pipe system is arranged in the cylinder 3, as shown in fig. 7, the spraying pipe system is composed of a spraying liquid inlet short pipe 10, a 90-degree elbow 11, a spraying main pipe 15, a spraying branch pipe 12, a nozzle 14 and a pipe cap 16, one end of the spraying branch pipe 12, which is far away from the spraying main pipe 15, is sealed through a spraying branch pipe sealing plate 13, a spraying liquid inlet flange 9 is arranged at the position of the spraying liquid inlet short pipe 10, a spraying slurry inlet 19 is arranged on the spraying liquid inlet short pipe 10, the spraying pipe composed of the spraying liquid inlet short pipe 10, the 90-degree elbow 11 and the spraying main pipe 15 is introduced into the center of the tower body from the top side direction of the cylinder 3 and extends downwards along the central line to the lower part of a flue gas inlet 17 at the bottom of the tower body, a plurality of washing slurry nozzles 14 are arranged on the spraying; the device is characterized in that a spiral tower plate 8, the cylinder 3 and a spray header 15 are arranged in the cylinder 3 from a flue gas inlet 17 along the tower wall from bottom to top, the space in the tower forms a spiral upward flue gas channel, the flue gas inlet 17 is in a form of tangentially side-entering at the bottom of the cylinder 3, is circular in shape and is 1-1.5 m away from the tower bottom, and is matched with a liquid level switch and a control system at the tower bottom, so that washing liquid can be effectively prevented from flowing backwards into an engine, when the engine flue gas enters the tower body from the flue gas inlet 17, the engine flue gas immediately diffuses upwards along the spiral flue gas channel in the tower body, and simultaneously, the engine flue gas and washing slurry sprayed by the spiral channel fully generate a desulfurization reaction, and washing wastewater after the reaction is discharged into the tower bottom along; meanwhile, the reacted clean flue gas diffuses to the top of the tower along the spiral flue gas channel, most water mist particles are filtered by a demister 4 arranged at the upper part of the cylinder 3, and then the purified flue gas is discharged into the atmosphere from a clean flue gas outlet 18 at the top of the tower;
the parts in the washing tower contacting with the medium are made of duplex stainless steel or nickel-based alloy with good corrosion resistance under seawater and acid-base liquid at a certain high temperature.
Referring to fig. 3 to 11, there is shown another spray system of the present invention, which is different from the above spray system in that the spray system is in a form without branch spray pipes 12, and a plurality of spray nozzles 14 are installed on a spray header 15 at regular intervals; the spray pipe system in the form is suitable for equipment with small smoke amount.
As shown in fig. 12, the structure of the support 1 can also be selected from the structure of an ear seat, a leg, a skirt and the like; the shape of the flue gas inlet 17 can be set to be square; manhole 21 may be provided as a square manhole.
According to different technological requirements of a washing system, the number of turns of the spiral tower plate, the number of spraying nozzles and the spraying angle can be correspondingly increased or decreased according to calculation; according to different control requirements of the washing system, instruments or sensor mounting ports of various parameters such as temperature, pressure, liquid level and the like can be added on the washing tower so as to meet various control requirements of the ship tail gas treatment system in the processes of regulation and operation.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. A scrubbing tower for marine exhaust treatment, comprising a drum (3), characterized in that: the upper part of the cylinder body (3) is provided with an upper seal head (5), the upper seal head (5) is provided with a clean flue gas outlet (18), the lower part of the cylinder body (3) is provided with a lower seal head (2) which protrudes downwards to form a cone shape and a support (1) used for lifting the cylinder body (3) to a certain height, the lower seal head (2) is provided with a washing wastewater outlet (20), the inside of the cylinder body (3) is provided with a spraying pipe system, the spraying pipe system comprises a spraying main pipe (15) with a sealed bottom, a spraying liquid inlet short pipe (10) which is arranged at the upper part of the spraying main pipe (15) and is vertical to the spraying main pipe (15), and a nozzle (14) used for spraying a detergent, the spraying liquid inlet short pipe (10) is provided with a spraying slurry inlet (19), the periphery of the spraying main pipe (15) is provided with a spiral column plate (8), and a certain distance is reserved, the outer periphery of the spiral tower plate (8) is attached to the inner wall of the cylinder body (3) so that a closed flue is formed among the spiral tower plate (8), the cylinder body (3) and the spraying main pipe (15), a spraying pipe system arranged along the rotation direction of the flue is arranged on the spraying main pipe (15), a flue gas inlet (17) is arranged in the tangential direction of the cylinder body (3), and the flue gas inlet (17) corresponds to the bottom of the spiral tower plate (8).
2. The scrubber tower for marine exhaust gas treatment according to claim 1, wherein: a demister (4) is arranged at the upper part of the cylinder body (3) and close to the purified flue gas outlet (18).
3. The scrubber tower for marine exhaust gas treatment according to claim 1, wherein: the lateral wall of barrel (3) is equipped with a plurality of manholes (21), manhole (21) arrange in proper order from top to bottom.
4. The scrubber tower for marine exhaust gas treatment according to claim 1, wherein: the outer part of the cylinder body (3) is provided with a plurality of pull lugs (6).
5. The scrubber tower for marine exhaust gas treatment according to claim 1, wherein: the lower end enclosure (2) is a conical end enclosure with a half vertex angle of 60-80 degrees.
6. The scrubber tower for marine exhaust gas treatment according to claim 1, wherein: the spraying pipe system also comprises spraying branch pipes (12) arranged on the spraying main pipe (15), the nozzles (14) are positioned on the spraying branch pipes (12), and the spraying branch pipes (12) are uniformly distributed below the spiral tower plate (8).
7. The scrubber tower for marine exhaust gas treatment according to claim 1, wherein: the spray nozzles (14) are directly arranged on the side wall of the spray header pipe (15).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201911400589.3A CN111013389A (en) | 2019-12-30 | 2019-12-30 | Washing tower for ship tail gas treatment |
Applications Claiming Priority (1)
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CN201911400589.3A CN111013389A (en) | 2019-12-30 | 2019-12-30 | Washing tower for ship tail gas treatment |
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CN111013389A true CN111013389A (en) | 2020-04-17 |
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CN201911400589.3A Pending CN111013389A (en) | 2019-12-30 | 2019-12-30 | Washing tower for ship tail gas treatment |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111701377A (en) * | 2020-06-24 | 2020-09-25 | 湖州南丰机械制造有限公司 | Dust treatment device of casting shop |
CN111701376A (en) * | 2020-06-24 | 2020-09-25 | 湖州南丰机械制造有限公司 | Dust treatment system of foundry |
CN112107988A (en) * | 2020-09-30 | 2020-12-22 | 江西瑞顺超细铜线科技协同创新有限公司 | Tail gas purifying equipment of copper line manufacturing |
CN112933839A (en) * | 2021-02-07 | 2021-06-11 | 华南理工大学 | Spiral demisting and dedusting device with double diversion grooves |
CN114011233A (en) * | 2021-11-09 | 2022-02-08 | 浙江浙能迈领环境科技有限公司 | Energy-saving and convenient-to-maintain washing tower and waste gas desulfurization treatment method |
CN117085503A (en) * | 2023-10-19 | 2023-11-21 | 汇舸(南通)环保设备有限公司 | Intelligent desulfurization treatment spray device for purifying ship tail gas |
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CN105233605A (en) * | 2015-10-21 | 2016-01-13 | 深圳粤通新能源环保技术有限公司 | Dust removing and purifying device for smoke of boiler |
CN205867966U (en) * | 2016-06-30 | 2017-01-11 | 北京绿都天蓝环保工程有限公司 | SOx/NOx control exhaust purification all -in -one |
CN209155482U (en) * | 2018-11-29 | 2019-07-26 | 四川西部聚鑫化工包装有限公司 | A kind of VOC exhaust-gas treatment spray column |
CN110339694A (en) * | 2019-07-16 | 2019-10-18 | 深圳市鑫鸿发环保设备有限公司 | A kind of spiral emission-control equipment |
CN211636022U (en) * | 2019-12-30 | 2020-10-09 | 上海德创海洋环境科技有限公司 | Washing tower for ship tail gas treatment |
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Patent Citations (5)
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CN105233605A (en) * | 2015-10-21 | 2016-01-13 | 深圳粤通新能源环保技术有限公司 | Dust removing and purifying device for smoke of boiler |
CN205867966U (en) * | 2016-06-30 | 2017-01-11 | 北京绿都天蓝环保工程有限公司 | SOx/NOx control exhaust purification all -in -one |
CN209155482U (en) * | 2018-11-29 | 2019-07-26 | 四川西部聚鑫化工包装有限公司 | A kind of VOC exhaust-gas treatment spray column |
CN110339694A (en) * | 2019-07-16 | 2019-10-18 | 深圳市鑫鸿发环保设备有限公司 | A kind of spiral emission-control equipment |
CN211636022U (en) * | 2019-12-30 | 2020-10-09 | 上海德创海洋环境科技有限公司 | Washing tower for ship tail gas treatment |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111701377A (en) * | 2020-06-24 | 2020-09-25 | 湖州南丰机械制造有限公司 | Dust treatment device of casting shop |
CN111701376A (en) * | 2020-06-24 | 2020-09-25 | 湖州南丰机械制造有限公司 | Dust treatment system of foundry |
CN112107988A (en) * | 2020-09-30 | 2020-12-22 | 江西瑞顺超细铜线科技协同创新有限公司 | Tail gas purifying equipment of copper line manufacturing |
CN112933839A (en) * | 2021-02-07 | 2021-06-11 | 华南理工大学 | Spiral demisting and dedusting device with double diversion grooves |
CN114011233A (en) * | 2021-11-09 | 2022-02-08 | 浙江浙能迈领环境科技有限公司 | Energy-saving and convenient-to-maintain washing tower and waste gas desulfurization treatment method |
CN114011233B (en) * | 2021-11-09 | 2024-04-26 | 浙江浙能迈领环境科技有限公司 | Energy-saving washing tower convenient to maintain and waste gas desulfurization treatment method |
CN117085503A (en) * | 2023-10-19 | 2023-11-21 | 汇舸(南通)环保设备有限公司 | Intelligent desulfurization treatment spray device for purifying ship tail gas |
CN117085503B (en) * | 2023-10-19 | 2024-01-23 | 汇舸(南通)环保设备有限公司 | Intelligent desulfurization treatment spray device for purifying ship tail gas |
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Effective date of registration: 20220125 Address after: 312000 south of Sanjiang Road, Paojiang New District, Shaoxing City, Zhejiang Province Applicant after: ZHEJIANG TUNA ENVIRONMENTAL SCIENCE & TECHNOLOGY Co.,Ltd. Address before: Room 702, 7 / F, block D, 209 Guoyao Road, China (Shanghai) pilot Free Trade Zone, Pudong New Area, Shanghai, 200125 Applicant before: Shanghai Dechuang Marine Environment Technology Co.,Ltd. |
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