CN106563336B - A kind of ship washing desulphurization devices and methods therefor that high underload is applicable - Google Patents
A kind of ship washing desulphurization devices and methods therefor that high underload is applicable Download PDFInfo
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- CN106563336B CN106563336B CN201610910676.3A CN201610910676A CN106563336B CN 106563336 B CN106563336 B CN 106563336B CN 201610910676 A CN201610910676 A CN 201610910676A CN 106563336 B CN106563336 B CN 106563336B
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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
- B01D53/14—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 by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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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
- B01D53/14—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 by absorption
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
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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
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4566—Gas separation or purification devices adapted for specific applications for use in transportation means
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- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to the ship washing desulphurization devices and methods therefors that a kind of high underload is applicable in.Described device includes washing tower shell, main spray system, auxiliary spray system；The main spray system is arranged on the central axes in washing tower shell, several nozzles of the main spray system are sprayed by the inner wall of the central axes horizontal direction washing tower shell of washing tower shell；The auxiliary spray system is arranged on the inner wall of washing tower shell, several nozzles of the auxiliary spray system helically rise layout, the nozzle level of the auxiliary spray system overlooks the spray direction of auxiliary spray system nozzle perpendicular to the line of scrubbing tower inner walls and washing tower shell central axes as horizontal clockwise direction；5-10 times of spray system nozzle quantity supplemented by the quantity of the main jet leaching system nozzle.Two sets of spray systems are arranged in the present invention in same washing tower shell, compact-sized reasonable.
Description
Technical field
The present invention relates to the ship washing desulphurization devices and methods therefors that a kind of high underload is applicable in.
Background technique
It is provided according to MARPOL pact supplemental provisions VI, from January 1st, 2015, navigates by water the ship in emission control area (ECA),
Necessary combustion of sulfur amount is equal to or less than the Low Sulfur Fuel Oil of 0.10% (m/m), while ship being allowed to use approved emission reduction skill
Art, condition are SO2Discharge is equivalent to the Low Sulfur Fuel Oil that burning is equal to or less than 0.10%.It has been come into effect in view of " limit sulphur enables ",
Petroleum resources are in short supply, and Low Sulfur Fuel Oil is at high price and supply falls short of demand, and marine exhaust desulfurization becomes domestic and international research hotspot.
Literature search discovery, the marine exhaust desulfurization producer having been reported in the world at present are no less than 15, and domestic
The relevant technologies are started late, and are in theoretical research and laboratory lab scale stage mostly.It is reported that the Maritime Affairs University Of Dalian and Harbin work
Engineering prototype development is completed in journey Scientific Research in University team, and wherein engineering prototype reality ship application is completed in the Maritime Affairs University Of Dalian.
The desulfurization technology mainly used both at home and abroad includes: seawater method, fresh water+sodium-hydroxide method, magnesium-based-seawater method, electrolysis
Seawater simultaneous SO_2 and NO removal technology and dry method.Different from the operating condition of continental rise desulphurization system, the exhaust gas of marine exhaust desulphurization system
Operating condition variation is huge, is especially embodied in the variation of exhaust gas flow.When ship normal/cruise, host and subsidiary engine are run simultaneously, are given up
Throughput is larger.When ship pulls in shore, host dead halt, only subsidiary engine operation, when exhaust gas flow only has normal/cruise at this time
10% or less.By marine exhaust desulfurization technical investigation it is found that current mainstream technology is wet desulphurization, and process of wet desulphurization
In important parameter be liquid-gas ratio.When exhaust gas flow is down to the 10% of design value, drop spray flow also if adjusting circulating pump
To the 10% of design value, spray liquid nozzle exit pressure is difficult to ensure, causes spraying effect very poor, substantially without desulfurization effect.To
Keep desulfurization effect up to standard, it is necessary to maintain the power of spray pump in a particular value, to guarantee spraying effect.And spray pump is desulfurization
The significant contributor of system power consumption, therefore in marine main engine underrun or only subsidiary engine operation, the consumption of desulphurization system
Electricity is not substantially reduced, to cause huge energy dissipation.
Summary of the invention
The present invention, according to load variations section, adjusts pump by the way that two sets of spray systems are arranged in same washing tower shell
Power directly switches spray system, under the premise of guaranteeing liquid-gas ratio, it is ensured that nozzle atomization effect, and then reach desulfurization effect
Mark.
The present invention provides the ship washing desulphurization device that a kind of high underload is applicable in, described device includes washing tower casing
Body, spray liquid circulating slot, pump I, main spray system, pump II, auxiliary spray system；
The outlet I of the spray liquid circulating slot is connect by pump I with main spray system；
The outlet II of the spray liquid circulating slot is connect by pump II with auxiliary spray system；
The main spray system is arranged on the central axes in washing tower shell, several nozzles of the main spray system
By the inner wall spray of the central axes horizontal direction washing tower shell of washing tower shell；
The auxiliary spray system is arranged on the inner wall of washing tower shell, several nozzles of the auxiliary spray system are in spiral shell
A liter layout is screwed on, the nozzle level of the auxiliary spray system is perpendicular to scrubbing tower inner walls and the company for washing tower shell central axes
Line overlooks the spray direction of auxiliary spray system nozzle as horizontal clockwise direction；
5-10 times of spray system nozzle quantity supplemented by the quantity of the main jet leaching system nozzle.
Device of the present invention preferably comprises frequency converter I, frequency converter II；The frequency converter I is connect with pump I, the change
Frequency device II is connect with pump II.
The spray liquid refluxing opening of scrubbing tower housing bottom of the present invention is preferably connect with spray liquid circulating slot.
Another object of the present invention is provide a kind of ship washing desulphurization method being applicable in using the high underload of above-mentioned apparatus, institute
The method of stating includes the following steps:
1. when ship normal/cruise, opening pump I, changing according to main unit load, I output frequency of frequency converter, control master are adjusted
The liquid-gas ratio of spray system is 5-7L/m3, pressure 0.1-0.2MPa；
2. during marine main engine reduces load until shutting down, I output frequency of frequency converter is reduced, when main spray system
Liquid-gas ratio is less than 3L/m3Or pressure opens pump II, adjusts II output frequency of frequency converter, controlling auxiliary spray is when being less than 0.05MPa
The pressure of system is at least 0.1MPa, simultaneously closes off pump I, and the liquid-gas ratio for controlling auxiliary spray system is 5-7L/m3, pressure 0.1-
0.2MPa；
3. during marine main engine starts, II working condition of pump is constant, while opening pump I, the output frequency of frequency converter I is adjusted
Rate, the pressure for controlling main spray system are at least 0.1MPa, when host operates in normal/cruise state, close pump II, main jet
It drenches working state of system and step is 1. identical.
The main and auxiliary spray system switching of step of the present invention 2. and 3., its purpose is that: prevent variation, the desulfurization of load
To the fluctuation of desulfurization effect and host back pressure caused by the mutation of system running state.
When ship normal/cruise of the present invention, the liquid-gas ratio for controlling main spray system is preferably 6L/m3, pressure be preferably
0.13MPa。
When only auxiliary spray system work of the present invention, the liquid-gas ratio for controlling auxiliary spray system is preferably 6L/m3, pressure
Preferably 0.13MPa.
The invention has the following beneficial effects:
1. two sets of spray systems are arranged in the present invention in same washing tower shell, compact-sized reasonable；
2. device of the present invention has greatly saved the energy consumption of desulphurization system；
3. main and auxiliary spray system handoff procedure of the present invention is smooth, smaller to the impact of desulfurization effect and host back pressure.
Detailed description of the invention
2 width of attached drawing of the present invention,
Fig. 1 is the structural schematic diagram of the applicable ship washing desulphurization device of high underload described in embodiment 1；
Fig. 2 is the top view of the applicable ship washing desulphurization device of high underload described in embodiment 1；
Wherein, 1, washing tower shell, 2, spray liquid circulating slot, 3, spray pump I, 4, main spray system, 41, main spray system
Nozzle, 5, spray pump II, 6, auxiliary spray system, 61, the nozzle of auxiliary spray system, 7, frequency converter I, 8, frequency converter II.
Specific embodiment
Following non-limiting embodiments can with a person of ordinary skill in the art will more fully understand the present invention, but not with
Any mode limits the present invention.
Embodiment 1
A kind of ship washing desulphurization device that high underload is applicable, described device include washing tower shell 1, spray liquid circulation
Slot 2, spray pump I 3, main spray system 4, spray pump II 5, auxiliary spray system 6, frequency converter I 7, frequency converter II 8；
The outlet I of the spray liquid circulating slot 2 is connect by spray pump I 3 with main spray system 4, the frequency converter I 7 and
Spray pump I 3 connects；
The outlet II of the spray liquid circulating slot 2 is connect by spray pump II 5 with auxiliary spray system 6, the frequency converter II 8
It is connect with spray pump II 5；
The spray liquid refluxing opening of washing 1 bottom of tower shell is connect with spray liquid circulating slot 2；
The main spray system 4 is arranged on the central axes in washing tower shell 1, several sprays of the main spray system
Mouth 41 is sprayed by the inner wall of the central axes horizontal direction washing tower shell 1 of washing tower shell 1；
The auxiliary spray system 6 is arranged on the inner wall of washing tower shell 1, several nozzles 61 of the auxiliary spray system
Helically rise layout, 61 horizontal vertical of nozzle of the auxiliary spray system is in washing 1 inner wall of tower shell and washing tower shell 1
The line of axis overlooks the spray direction of auxiliary spray system nozzle 61 as horizontal clockwise direction；
10 times of 61 quantity of spray system nozzle supplemented by the quantity of the main jet leaching system nozzle 41.
Embodiment 2
A kind of ship washing desulphurization method being applicable in using the high underload of 1 described device of embodiment, the method includes such as
Lower step:
By taking the container ship of 1700TEU as an example, main engine power 10MW, when ship normal/cruise, main unit load 50-
60%, 3 subsidiary engines are equipped with, every power for auxiliary machinery is 600kW, and a fortune two is standby under usual situation or two transport standby, a maximum waste gas streams
Amount is 80000m3/h；
1. when ship normal/cruise, opening spray pump I 3, changing according to main unit load, I 7 output frequency of frequency converter is adjusted,
The liquid-gas ratio for controlling main spray system 4 is 6L/m3, pressure 0.13MPa；
2. during marine main engine reduces load until shutting down, I 7 output frequency of frequency converter is reduced, when main spray system 4
Liquid-gas ratio be less than 3L/m3Or pressure be less than 0.05MPa when, open spray pump II 5, adjust II 8 output frequency of frequency converter, control
The pressure of auxiliary spray system 6 is at least 0.1MPa, simultaneously closes off spray pump I 3, and the liquid-gas ratio for controlling auxiliary spray system 6 is 6L/
m3, pressure 0.13MPa；
3. II 5 working condition of spray pump is constant, while opening spray pump I 3 during marine main engine starts, adjusts and become
I 7 output frequency of frequency device, the pressure for controlling main spray system 4 are at least 0.1MPa, when host operates in normal/cruise state,
Spray pump II 5 is closed, main 4 working condition of spray system and step are 1. identical.
Comparative example 1
Ship only runs a subsidiary engine after reaching port, and is 4000m by exhaust gas flow3/ h, liquid-gas ratio 6L/m3It calculates, according to
Auxiliary spray system 6 of the invention is 24m to its exhaust gas washing desulphurization, the flow of spray pump II 53/ h, corresponding II 5 function of spray pump
Rate is that 5kW can meet desulfurization requirement；According to main spray system in the prior art to its exhaust gas washing desulphurization, then spray pump
Power be at least 35kW just and can guarantee spray liquid atomization same as the present invention and desulfurization effect.
The present invention is not limited to the above embodiment, and any equivalent concepts within the technical scope of the present disclosure or is changed
Become, is classified as protection scope of the present invention.
Claims (1)
1. a kind of applicable ship washing desulphurization method of high underload, it is characterised in that: the device that the method utilizes are as follows:
Described device include washing tower shell, spray liquid circulating slot, frequency converter I, pump I, main spray system, frequency converter II, pump II,
Auxiliary spray system；
The outlet I of the spray liquid circulating slot is connect by pump I with main spray system, and the frequency converter I is connect with pump I；
The outlet II of the spray liquid circulating slot is connect by pump II with auxiliary spray system, and the frequency converter II is connect with pump II；
The spray liquid refluxing opening of the scrubbing tower housing bottom is connect with spray liquid circulating slot；
The main spray system is arranged on the central axes in washing tower shell, several nozzles of the main spray system are by washing
Wash the inner wall spray of the central axes horizontal direction washing tower shell of tower shell；
The auxiliary spray system be arranged in washing tower shell inner wall on, several nozzles of the auxiliary spray system helically on
Rise layout, the nozzle level of the auxiliary spray system perpendicular to scrubbing tower inner walls and washing tower shell central axes line,
The spray direction of auxiliary spray system nozzle is overlooked as horizontal clockwise direction；
5-10 times of spray system nozzle quantity supplemented by the quantity of the main jet leaching system nozzle；
Described method includes following steps:
1. when ship normal/cruise, opening pump I, changing according to main unit load, I output frequency of frequency converter, control main jet leaching are adjusted
The liquid-gas ratio of system is 5-7L/m3, pressure 0.1-0.2MPa；
2. during marine main engine reduces load until shutting down, I output frequency of frequency converter is reduced, when the liquid gas of main spray system
Than being less than 3L/m3Or pressure be less than 0.05MPa when, open pump II, adjust II output frequency of frequency converter, control auxiliary spray system
Pressure is at least 0.1MPa, simultaneously closes off pump I, and the liquid-gas ratio for controlling auxiliary spray system is 5-7L/m3, pressure 0.1-
0.2MPa；
3. during marine main engine starts, II working condition of pump is constant, while opening pump I, I output frequency of frequency converter is adjusted,
The pressure for controlling main spray system is at least 0.1MPa, when host operates in normal/cruise state, closes pump II, main jet leaching system
Working condition of uniting and step are 1. identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610910676.3A CN106563336B (en) | 2016-10-19 | 2016-10-19 | A kind of ship washing desulphurization devices and methods therefor that high underload is applicable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610910676.3A CN106563336B (en) | 2016-10-19 | 2016-10-19 | A kind of ship washing desulphurization devices and methods therefor that high underload is applicable |
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| CN106563336A CN106563336A (en) | 2017-04-19 |
| CN106563336B true CN106563336B (en) | 2019-01-18 |
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| CN109115614A (en) * | 2018-05-31 | 2019-01-01 | 沪东中华造船(集团)有限公司 | A method of ship hanging ring load is test using test instrument |
| CN110007642B (en) * | 2019-04-29 | 2021-10-08 | 南通航海机械集团有限公司 | Automatic control method for ship waste gas cleaning high-flow seawater pump set |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204522729U (en) * | 2014-12-10 | 2015-08-05 | 南京开拓环保科技有限公司 | A kind of device of flexible modulation desulfurization spray flux |
| CN204768249U (en) * | 2015-07-16 | 2015-11-18 | 汪大伟 | High -efficient SOx/NOx control cyclic utilization spray column of lime |
| CN105311962A (en) * | 2014-06-30 | 2016-02-10 | 中国矿业大学(北京) | Marine diesel engine waste gas desulfurization high-reliability spray liquid transporting and measurement and control device |
-
2016
- 2016-10-19 CN CN201610910676.3A patent/CN106563336B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105311962A (en) * | 2014-06-30 | 2016-02-10 | 中国矿业大学(北京) | Marine diesel engine waste gas desulfurization high-reliability spray liquid transporting and measurement and control device |
| CN204522729U (en) * | 2014-12-10 | 2015-08-05 | 南京开拓环保科技有限公司 | A kind of device of flexible modulation desulfurization spray flux |
| CN204768249U (en) * | 2015-07-16 | 2015-11-18 | 汪大伟 | High -efficient SOx/NOx control cyclic utilization spray column of lime |
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Inventor after: Tang Xiaojia Inventor after: Zhu Yimin Inventor after: Li Tie Inventor after: Guo Lin Inventor after: Zhao Jiao Inventor before: Zhu Yimin Inventor before: Tang Xiaojia Inventor before: Li Tie Inventor before: Guo Lin Inventor before: Zhao Jiao |
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Effective date of registration: 20230506 Address after: 116026 Room 301, 319, Linghai Road, Ganjingzi District, Dalian, Liaoning, China, 1 Patentee after: Dalian Maritime University Investment Management Co.,Ltd. Address before: 116026 1 Linghai Road, hi tech park, Dalian, Liaoning Patentee before: Dalian Maritime University |
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Effective date of registration: 20230724 Address after: No. 103, Yangjian East Section, Xihu Road, Yangjian, Xishan District, Wuxi City, Jiangsu Province, 214107 Patentee after: Jiangsu Heyi Environmental engineering Co.,Ltd. Address before: 116026 Room 301, 319, Linghai Road, Ganjingzi District, Dalian, Liaoning, China, 1 Patentee before: Dalian Maritime University Investment Management Co.,Ltd. |
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