CN206746287U - Disturbed flow pipe grid under the liquid that a kind of ship machine exhaust contaminant is administered - Google Patents
Disturbed flow pipe grid under the liquid that a kind of ship machine exhaust contaminant is administered Download PDFInfo
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- CN206746287U CN206746287U CN201720071381.1U CN201720071381U CN206746287U CN 206746287 U CN206746287 U CN 206746287U CN 201720071381 U CN201720071381 U CN 201720071381U CN 206746287 U CN206746287 U CN 206746287U
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
It the utility model is related to disturbed flow pipe grid under the liquid that a kind of ship machine exhaust contaminant is administered, disturbed flow pipe grid are arranged on the bottom in absorption tower, the absorption tower persistently receives the seawater containing oxidant being externally supplied, and the disturbed flow pipe grid is located at below liquid level, forms flow-disturbing zoneofoxidation under liquid；The absorption tower bottom is provided with the air inlet with ship machine communicating exhaust gas, and top is provided with the gas outlet externally discharged, and bottom is provided with seawater discharge mouth；The disturbed flow pipe grid are the disturbed flow pipes of horizontal stagger arrangement or in-line arrangement, and each disturbed flow pipe is parallel to each other.The utility model can the larger gas-liquid mass transfer effect improved under liquid；The oxidizing reaction rate of fast lifting multi-pollutant, realize at least 50% NOxRemoval efficiency, while promote sulfite oxidation into sulfate, for SOxRemoval there is booster action, so as to realize up to 95% SO2Removal efficiency.
Description
Technical field
Disturbed flow pipe grid under a kind of liquid are the utility model is related to, the multi-pollutant for engine of boat and ship exhaust, which cooperates with, to be administered,
Belong to the technical field of ship atmosphere pollution improvement.
Background technology
China is an inland water transport resource than more rich country.By the end of the year 2013, China possesses transport ship on water
17.26 ten thousand, oceangoing ship, 2.44 hundred million tons of net deadweight.Global ten Ports, China occupy eight seats, handling capacity account for the whole world four/
One.
Problem of environmental pollution becomes increasingly conspicuous caused by Shipping.According to measuring and calculating, national ship sulfur dioxide row in 2013
The 8.4% of national total emission volumn is high-volume accounted for, nitrogen oxide emission accounts for 11.3%.By Pollution From Ships influenceed maximum be harbour
City, next to that rivers bank city.
According to the Shanghai result of study of 2012, sulfur dioxide (SO2) caused by ship discharge, nitrogen oxides (NOx) and
Fine particle (PM2.5) accounts for 12.4%, 11.6% and the 5.6% of Shanghai City total emission volumn respectively.In Hong Kong, 2012
Data show, marine exhaust discharge is whole city's pellet (PM10), NOx and SO2 maximum emission source, wherein the above two
Account for about 30%, SO2 and then reach 50%.
It is maximum effect factor for polluting thing discharge that ship, which uses the high poor quality fuel oil of sulfur content,.At present, Chinese ship
With there is 60-65% to be bunker fuel oil in fuel consumption, on a small quantity with light diesel fuel (ordinary diesel oil).According to《Bunker fuel oil》(GB/
T17411-2012) standard, at present, Chinese bunker fuel oil sulfur content are states four at 1-3.5% (10000-35000ppm)
200-700 times of diesel oil (sulfur content 50ppm).Using the ship of high-sulfur oils such as burning low grade coal, without exhaust gas processing device
" mobile thermal power plant ".Required according to standard, the control of ship Air Pollutant Emission will be implemented in two stages：First stage,
Compared with Chinese ship machine oceangoing ship discharges present situation, PM discharges will cut down 70% or so, NOxDischarge will cut down more than 20%；Second stage,
PM and NOxOn the basis of inciting somebody to action in the first stage, 40% and 20% is further reduced respectively.Therefore, ship machine row is administered in research and development
The technology and device of gas pollutant are highly important.
At present, the improvement for ship machine exhaust contaminant does not have systematic device or method also, peculiar to vessel only by improving
The method of fuel qualities is ineffective, and can significantly raise the cost of shipowner, particularly with removal NOxDischarge capacity effect
It is bad, provided that a kind of device, it is possible to increase NO in ship machine exhaust contaminantxRemoval effect, collaboration administer other pollution
Thing, become the technical barrier that this area is badly in need of solving.
The content of the invention
The technical problems to be solved in the utility model is the defects of overcoming existing packed tower oxidation reaction effect difference, there is provided
Disturbed flow pipe grid under a kind of liquid.Disturbed flow pipe grid are applied to what the exhaust multi-pollutant collaboration of ship machine was administered under liquid provided by the utility model
During, the larger gas-liquid mass transfer improved under liquid of energy, the oxidizing reaction rate of fast lifting multi-pollutant, realize at least
50% NOxRemoval efficiency, while promote sulfite oxidation into sulfate, for SOxRemoval there is booster action.
The utility model takes following technical scheme：
Disturbed flow pipe grid under the liquid that a kind of ship machine exhaust contaminant is administered, disturbed flow pipe grid are arranged on the bottom in absorption tower, institute
State absorption tower and persistently receive the seawater containing oxidant being externally supplied, the disturbed flow pipe grid is located at below liquid level, form liquid
Lower flow-disturbing zoneofoxidation；The absorption tower bottom is provided with the air inlet with ship machine communicating exhaust gas, and top is provided with the outlet externally discharged
Mouthful, bottom is provided with seawater discharge mouth；The disturbed flow pipe grid are the disturbed flow pipes of horizontal stagger arrangement or in-line arrangement, and each disturbed flow pipe is mutual
It is parallel.
Further, the hollow pipe number of the disturbed flow pipe grid is 3 rows.
Further, adjacent two hollow pipe forms equilateral triangle arrangement with the hollow pipe in nearest, adjacent tubes grid.
Further, a diameter of 76mm of the hollow pipe, the spacing between adjacent two hollow pipe is 160mm.
Further, the hollow pipe is to be flexibly connected with the connected mode of the tower wall of the packed tower.
Further, the disturbed flow pipe grid are integrated module type structure.
The beneficial effects of the utility model are：
1) disturbed flow pipe grid under a kind of liquid administered applied to the exhaust multi-pollutant collaboration of ship machine are provided, can larger raising liquid
Under gas-liquid mass transfer effect.
2) oxidizing reaction rate of fast lifting multi-pollutant, at least 50% NO is realizedxRemoval efficiency, while promote Asia
Oxide sulfate is into sulfate, for SOxRemoval there is booster action, so as to realize up to 95% SO2Removal efficiency.
3) removal effect of PM particulate matters in flow-disturbing oxygen area is enhanced.
4) for the seawater after removing acid contaminant, have the function that to strengthen its oxidation and aeration, reduce in seawater
CO2, so as to realize that the dissolved oxygen DO of outer row's seawater and COD COD meets the requirement of environmental protection.
Brief description of the drawings
Fig. 1 is the absorption tower for being mounted with disturbed flow pipe grid under the utility model liquid, is controlled for the exhaust multi-pollutant collaboration of ship machine
Reason.
Fig. 2 is the sectional view of two different height positions of disturbed flow pipe grid module under liquid in Fig. 1, including a-a to b-b to
Sectional view.
Fig. 3 is the elevation of disturbed flow pipe grid module under liquid.
Embodiment
The utility model is further illustrated with specific embodiment below in conjunction with the accompanying drawings.
Embodiment one, with 10000Nm3/h, exemplified by 160 DEG C of ship machine exhaust：
Absorption tower structure for the exhaust multi-pollutant collaboration improvement of ship machine is as shown in figure 1, disturbed flow pipe grid are pacified under the liquid
On absorption tower, absorption tower type is packed tower, and one is respectively arranged with the diverse location of the hypomere tower wall of the packed tower
Ship machine exhaust entrance and a seawater discharge mouth, a net air exit is provided with the tower top of the packed tower, the packed tower
Middle and upper part is additionally provided with a seawater distribution device in tower, and packing area, the packing area are provided with below the seawater distribution device
Lower section be complete flow-disturbing oxidative function hold liquid zone, disturbed flow pipe grid are also included perpendicular to the packed tower tower wall, simultaneously under the liquid
The a row or multi-row pipe grid being arranged on the packed tower cross section, each pipe grid include several hollow pipes be arrangeding in parallel,
The top for being arranged at the ship machine exhaust entrance of the pipe grid, and held positioned at described below the liquid level of liquid zone.
Referring to Fig. 1, the seawater compartment system includes 1-3 layer seawater distribution devices, and every layer of seawater distribution device is equal
Several spray spouts are furnished with, for seawater to be broken into drop.Meanwhile it is additionally provided with 1 above the seawater compartment system
Layer or multilayer demister.Demister is used to remove the droplet in the net exhaust externally discharged, such as moisture, sulfuric acid, the sulphur of dissolving
Hydrochlorate, sulphite etc..
Specific to disturbed flow pipe grid module part：
Referring to Fig. 1, disturbed flow pipe grid are arranged on the bottom in absorption tower, and the absorption tower persistently receives containing of being externally supplied
The seawater of oxidant, the disturbed flow pipe grid is located at below liquid level, form flow-disturbing zoneofoxidation under liquid；The absorption tower bottom is provided with
With the air inlet of ship machine communicating exhaust gas, top is provided with the gas outlet externally discharged, and bottom is provided with seawater discharge mouth；The disturbed flow pipe
Grid are the disturbed flow pipes of horizontal stagger arrangement or in-line arrangement, and each disturbed flow pipe is parallel to each other.
As shown in Figures 2 and 3, the disturbed flow pipe grid are integrated module type structure, and the numbers of the pipe grid is 3 rows, Mei Yiguan
The number of hollow pipe is every meter of 5-6 in grid.A diameter of 76mm of the hollow pipe, in each pipe grid between adjacent two hollow pipe
Distance be 160mm, spacing herein refers to the centre-to-centre spacing of two adjacent hollow pipes.Adjacent two hollow pipe with a distance of it is nearest,
Hollow pipe in adjacent tubes grid forms equilateral triangle arrangement, further to improve the mass transfer contact area of gas-liquid two-phase, so as to carry
High oxidation reaction efficiency.Each hollow pipe is to be flexibly connected with the connected mode of the tower wall of the packed tower, to realize that modularization is pacified
Dress and replacing, it is easy to maintain.
Referring to Fig. 1-Fig. 3, when seawater liquid phase is passed through in undressed ship machine exhaust, high-temperature flue gas and seawater carry out fierceness
Heat exchange, substantial amounts of steam and bubble are produced, by disturbed flow pipe grid (three groups pipes arrange), fully contacted with seawater, oxidant etc., one
Aspect plays more than 50% denitration, and another aspect sulphite is oxidized to sulfate etc., desulfurization is played good
Booster action, while the CO2 in seawater is reduced, ensure certain dissolved oxygen DO and COD COD, after making desulphurization denitration
Seawater reaches environment protection emission requirement.
The effect that lower mask body introduction is implemented, the major pollutants composition of ship machine exhaust are as follows：
| Project | NOX | SOX | PM |
| Unit | ppm | ppm | ppm |
| Before improvement | <800 | <1000 | <200 |
After disturbed flow pipe grid under liquid, discharge index is as follows：
| Project | NOX |
| Unit | ppm |
| After improvement | <400 |
After the overall multi-pollutant cooperative disposal of packed tower, other discharge indexs are as follows：
| Project | SOX | PM |
| Unit | ppm | ppm |
| After improvement | <50 | <50 |
Numerical value is visible in table, three pollutant emissions be satisfied by current generation ship machine exhaust in pollutant emission limit will
Ask.
Above is preferred embodiment of the present utility model, one of ordinary skill in the art can also be carried out on this basis
Various conversion or improvement, on the premise of the total design of the utility model is not departed from, these conversion and improvement should all belong to this
Within the scope of utility model is claimed.
Claims (6)
1. disturbed flow pipe grid under the liquid that a kind of ship machine exhaust contaminant is administered, it is characterised in that：
Disturbed flow pipe grid are arranged on the bottom in absorption tower, and the absorption tower persistently receives the sea containing oxidant being externally supplied
Water, the disturbed flow pipe grid is located at below liquid level, form flow-disturbing zoneofoxidation under liquid；
The absorption tower bottom is provided with the air inlet with ship machine communicating exhaust gas, and top is provided with the gas outlet externally discharged, and bottom is set
There is seawater discharge mouth；
The disturbed flow pipe grid are the disturbed flow pipes of horizontal stagger arrangement or in-line arrangement, and each disturbed flow pipe is parallel to each other.
2. disturbed flow pipe grid under liquid as claimed in claim 1, it is characterised in that：The hollow pipe number of the disturbed flow pipe grid is 3 rows.
3. disturbed flow pipe grid under liquid as claimed in claim 2, it is characterised in that：Adjacent two hollow pipe with a distance of nearest, adjacent
Hollow pipe in pipe grid forms equilateral triangle arrangement.
4. disturbed flow pipe grid under liquid as claimed in claim 3, it is characterised in that：A diameter of 76mm of the hollow pipe, adjacent two
Spacing between hollow pipe is 160mm.
5. disturbed flow pipe grid under liquid as claimed in claim 2, it is characterised in that：The connection of the tower wall of the hollow pipe and packed tower
Mode is flexible connection.
6. disturbed flow pipe grid under liquid as claimed in claim 1, it is characterised in that：The disturbed flow pipe grid are integrated module type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720071381.1U CN206746287U (en) | 2017-01-20 | 2017-01-20 | Disturbed flow pipe grid under the liquid that a kind of ship machine exhaust contaminant is administered |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720071381.1U CN206746287U (en) | 2017-01-20 | 2017-01-20 | Disturbed flow pipe grid under the liquid that a kind of ship machine exhaust contaminant is administered |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206746287U true CN206746287U (en) | 2017-12-15 |
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ID=60607287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720071381.1U Active CN206746287U (en) | 2017-01-20 | 2017-01-20 | Disturbed flow pipe grid under the liquid that a kind of ship machine exhaust contaminant is administered |
Country Status (1)
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|---|---|
| CN (1) | CN206746287U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109589764A (en) * | 2018-12-13 | 2019-04-09 | 湖北蔚天环保科技有限公司 | High-efficient reduction absorption tower of oxynitrides in ultra-low temperature desorption flue gas |
| CN109649625A (en) * | 2019-02-01 | 2019-04-19 | 上海蓝魂环保科技有限公司 | Disperser for ship tail gas desulphurization system discharge of wastewater |
-
2017
- 2017-01-20 CN CN201720071381.1U patent/CN206746287U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109589764A (en) * | 2018-12-13 | 2019-04-09 | 湖北蔚天环保科技有限公司 | High-efficient reduction absorption tower of oxynitrides in ultra-low temperature desorption flue gas |
| CN109649625A (en) * | 2019-02-01 | 2019-04-19 | 上海蓝魂环保科技有限公司 | Disperser for ship tail gas desulphurization system discharge of wastewater |
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