CN106310942A - Treating device for engine exhaust emission of vehicle or mechanical engineering - Google Patents
Treating device for engine exhaust emission of vehicle or mechanical engineering Download PDFInfo
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- CN106310942A CN106310942A CN201610970939.XA CN201610970939A CN106310942A CN 106310942 A CN106310942 A CN 106310942A CN 201610970939 A CN201610970939 A CN 201610970939A CN 106310942 A CN106310942 A CN 106310942A
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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
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/085—Sulfur or sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/402—Alkaline earth metal or magnesium compounds of magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/01—Engine exhaust gases
- B01D2258/012—Diesel engines and lean burn gasoline engines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a treating device for offshore engine exhaust emission. The treating device comprises a desulfurizing device, a magnesium oxide storage bunker for storing magnesium oxide, a magnesium hydrate preparing tank, an oxidization cabinet and a liquid draining processor, wherein the desulfurizing device comprises a container, an upper chamber, a middle chamber, a lower chamber, a first inlet, a second inlet, a first outlet and a second outlet; the first inlet and the second inlet are respectively communicated with the fluid in the middle chamber; to-be-treated exhaust gas is fed to the first inlet; the second inlet can be communicated with the seawater fluid; the first outlet is communicated with the fluid in the upper chamber and is used for emitting desulfurized exhaust gas; the second outlet is communicated with the fluid in the lower chamber; the magnesium hydrate preparing tank is communicated with the second inlet, the magnesium oxide storage bunker and the seawater fluid; the oxidization cabinet is communicated with the fluid at the second outlet and is used for storing the desulfurized fluid in the lower chamber of the desulfurizing device; the oxidization cabinet is also communicated with air and is used for storing air; the oxidization cabinet comprises a fluid outlet and is used for emitting the inflating fluid; and the liquid draining processor is communicated with the fluid at the fluid outlet of the oxidization cabinet and is used for storing the inflating fluid in the oxidization cabinet.
Description
Technical field
The present invention relates to the control of marine internal combustion engine gas emission.The invention particularly relates to for marine engine exhaust row
The method that the processing equipment of the processing equipment put and this sea engine exhaust emission of use processes waste gas.
Background technology
Quick along with global economic development increases, the particularly fast development of the globalization logistics cause of world commerce,
Promoting sea-freight navigation the advancing by leaps and bounds of industry, oceangoing route spreads all over the world each big haven, and ship is made more and more, and the tonnage of boats and ships is also
Making bigger and bigger, boats and ships sea-freight carries the 80-90% of whole world shipping total amount.
When boats and ships are while development of world economy makes major contribution, the thing followed is that the engine exhaust of boats and ships is dirty
The increase of dye amount.
Marine internal combustion engine uses (also has gas turbine etc.) based on diesel powered, but is all to be main combustion with fossil fuel
Material, in short supply especially as petroleum resources, fuel price skyrockets, and marine diesel has used the relatively low heavy diesel fuel of price instead even the most
Residual oil balances cost effectiveness.But heavy oil and residual oil sulfur content are several times of ordinary diesel oil, simultaneously because burning velocity is slow and miscellaneous
Matter is many, and the carbon deposit therefore formed and the granule of discharge are multiplied, additionally the power (horsepower) of marine diesel engine be all
High-power between thousand of to several ten thousand, oxynitride (NOX) that this high-power engine produces, hydrocarbon (HC) and one
Carbonoxide (COX) is all tens times of vehicular engine, thus causes the heavily contaminated of air, also pollute simultaneously sea and
River.
And the discharge of marine diesel to be controlled, it is that (A) designs novel low-emission diesel and (B) selects that feasible way has
Use low pollution fuel.But these are at a large amount of marine diesels of application, and It dones't help the situation.
During desulfurization at marine internal combustion engine waste gas processes at present, use flue gas desulfurization with seawater and spray drying method.
In flue gas desulfurization with seawater method, flue gas desulfurization with seawater is SO in the natural alkaline absorbent flue gas utilizing sea water2's
A kind of sulfur removal technology.Owing to the alkaline matter (carbonate) of rock stratum, land is taken to marine by rainwater, natural sea-water is generally in alkali
Property, pH value is generally higher than 7, and its main component is chloride, sulfate and a part of soluble carbonate salt, with heavy carbonate
(HCO3 -) meter, natural alkalinity is about 1.2～2.5mmol/L, and this makes sea water have natural buffer capacity to acid and alkali and absorb SO2
Ability.One main theoretical basis of the reform of Chinese economic structure of sea water desulfuration is exactly that the sulfur of nature is mostly present in ocean, and sulfate is sea
One of Main Ingredients and Appearance of water, the sulfur dioxide overwhelming majority after desulfurization processes finally enters sea with the form of sulfate.
SO in flue gas2With contact with sea water occur following dominant response:
SO2(gaseous state)+H2O→H2SO3→H++HSO3 -
HSO3 -→H++SO3 2-
SO3 2-+1/2O2→SO4 2-
Such as, as it is shown in figure 1, scrubbing component includes: scrubbing container 4, the order from top to bottom in scrubbing container 4 is arranged
Gasotron 5, sprayer unit 6, moisture trap 7, the exhaustor 8 being arranged on scrubbing container 4, sea water is transported to spray
The delivery pump 9 of mist device 6, the granule collecting filter 10 that connect internal with scrubbing container 4.
The waste gas discharged from the air vent of electromotor or diesel engine 1 enters extraction by exhaust-driven turbo-charger exhaust-gas turbo charger 2 supercharging
Exhaustor 3, exhaustor 3 extends into the bottom of scrubbing container 4, make from diesel engine 1 discharge waste gas form height at exhaustor 3
The waste gas stream of speed ejection enters scrubbing container 4, and the waste gas stream bottom entrance scrubbing container 4 obtains dilatation and slows down and rise to gas
Commutator 5, makes waste gas be uniformly distributed in scrubbing container, and continues to rise by gasotron 5.Delivery pump 9 is by sea water
Being transported to the sprayer unit 6 above gasotron 5, sea water forms high density atomization sea water through sprayer unit 6 injection, with
The waste gas stream generation leggy risen through gasotron 5 contacts and collision, the granule (PM) in waste gas stream and sulfur dioxide
And other harmful gass are caught by vaporific sea water, neutralize (SOX), sprayer unit 6 can be arranged in the way of multilamellar, such as, and spraying
Device 6 includes ground floor aerosol apparatus 6a and second layer aerosol apparatus 6b, the most also can arrange third layer, the 4th layer of spraying
Device, each aerosol apparatus includes multiple injector head.The vaporific Absorption by Sea Water ejected by ground floor aerosol apparatus 6a and seizure waste gas
After granule in stream and harmful gas, waste gas stream continues to rise to second layer aerosol apparatus 6b, the granule slipped through the net on a small quantity therein and
The vaporific sea water that harmful gas is ejected by second layer aerosol apparatus 6b continues to catch and absorb, and so can make the suction of harmful gas
Yield reaches 95%.The catch rate of the granule of above two-layer aerosol apparatus 6a and 6b makes waste gas its fine particle after processed as above
Reaching PM2.5 or following, waste gas at this moment has reached discharge standard, becomes and can discharge gas.Containing certain in discharge gas
The water yield, gas continuing to rise, being arranged on the moisture trap 7 above sprayer unit 6 until entering, with by the water yield therein, i.e.
Water droplet, removes, and the gas removing water droplet is entered in air by exhaustor 8.The vaporific sea water ejected is through connecing with waste gas
Touch and collision rift, owing to action of gravity drops to the bottom of scrubbing container 4 by sedimentation, be then flowed into granule collection from outlet
Filter 10, carries out refuse process, sea water is carried out oxygenation process, make to dissolve in the SO of sea water after being collected2It is converted into after oxygenation
Sulfate, and sulfate is the ingredient of sea water, sea water is through so treated discharge.
Delivery pump 9 is connected to computer automatic control device D, and above-mentioned whole operation all automatically controls dress by computer
Put the order automaton SCS in D automatic by the brain comprehensive automaton DCS in computer automatic control device D
Control.
As in figure 2 it is shown, Fig. 2 schematically shows the structure substantially of gasotron 5, in gasotron 5
It is provided with screen cloth, is uniformly distributed into the inside of scrubbing container by the waste gas stream of this screen cloth.
As it is shown on figure 3, Fig. 3 schematically shows the structure of sprayer unit 6, it is arranged multiple in this sprayer unit 6
Injector head, the sea water making delivery pump 9 input ejects from multiple injector heads, forms vaporific sea water.
As shown in Figure 4, Fig. 4 schematically shows the structure of moisture trap 7, through the discharge gas warp of exhaust-gas treatment
Crossing moisture trap 7 makes moisture therein be removed.
This technology uses sea water as absorbent, and therefore operating cost is extremely low, easily promotes the use of not by resource limit, does not has
There is secondary pollution.But from the point of view of large ship, the efficiency of its desulfurization also has the space improved.
In spray drying method, the spray drying method sulfur removal technology process with lime water as desulfurizing agent: Calx water slurry) through mist
Changing device and be atomized into droplet 20～60um, contact with the mixing of sulfur-bearing heat smoke in absorber, SO2 and Ca (OH) 2 occurs strong
Chemical reaction, generates CaSO3 and CaSO4, and droplet moisture is gradually evaporated, finally gives CaSO3 and CaSO4 by the heat in flue gas
Dry powder, wherein most is got rid of through desulfurizing tower bottom, collects with the fraction fine powder removing dust device of air-flow eliminating.
But, the method has limitation for marine internal combustion engine, uneconomical for the transformation of obsolete vessel.
Summary of the invention
In order to overcome the drawbacks described above in prior art, the present invention provides a kind of for marine engine exhaust emission
Processing equipment, described equipment includes:
Desulfurizer, described desulfurizer includes:
Container；
Upper cavity volume, middle cavity volume and lower cavity volume, wherein, described lower cavity volume is used for accommodating fluid, and described middle cavity volume carries out desulfurization
Processing, described upper cavity volume carries out gas-liquid separation process；
First entrance and the second entrance, be in fluid communication with described middle cavity volume respectively, and described first entrance input is to be processed
Waste gas, described second entrance can connect with seawater fluid；
First outlet and second exports, and described first outlet and described upper cavity volume fluid communication are with giving up that discharge is desulfurized
Gas, described second outlet is in fluid communication with described lower cavity volume；
Deposit the magnesium oxide warehouse of magnesium oxide；
Magnesium hydroxide preparation tank, described magnesium hydroxide preparation tank can be with described second entrance of described desulfurizer, institute
State magnesium oxide warehouse to connect with described seawater fluid；
Oxidation cabinet, described second communication of described oxidation cabinet and described desulfurizer is to be received in described desulfurization
Desulfurized fluid in the described lower cavity volume of device, also with air communication to receive described air, described oxidation cabinet includes that fluid goes out
Mouth is to discharge aerated fluid therein；
Discharge opeing processor, described discharge opeing processor is described to receive with the described fluid issuing fluid communication of described oxidation cabinet
Described aerated fluid in oxidation cabinet, described discharge opeing processor includes:
Solid-liquid separator is with the liquid collected in described aerated fluid and separates the solid in described aerated fluid；With
Useless solid collector is to collect the solid in described aerated fluid；
Wherein, described solid-liquid separator includes the liquid outlet discharging described liquid.
In a preferred embodiment, described desulfurizer also includes: the 3rd entrance, and described 3rd entrance can be with described
The described lower cavity volume fluid communication of desulfurizer, to form fluid even between described magnesium hydroxide preparation tank and described lower cavity volume
Logical；3rd outlet, described 3rd outlet can be in fluid communication with the described lower cavity volume of described desulfurizer, to enter described second
Fluid communication is formed between mouth and described lower cavity volume.
In a preferred embodiment, described desulfurizer also includes: the 4th entrance, and described 4th entrance can be with described
The described lower cavity volume fluid communication of desulfurizer, with described discharge opeing processor described solid-liquid separator and described lower cavity volume it
Between formed fluid connection.
In a preferred embodiment, described desulfurizer also includes: the 5th entrance, and described 5th entrance can be with described
The described upper cavity volume fluid communication of desulfurizer, with described second entrance and described on form fluid communication between cavity volume.
In a preferred embodiment, described processing equipment also includes PAH processor, described PAH processor and described row
The liquid outlet fluid communication of the described solid-liquid separator of liquid processor, to receive the described liquid in described solid-liquid separator also
Adsorbing the PAH in described liquid, described PAH processor includes the liquid discharge outlet discharging processed liquid therein.
According to above-mentioned a kind of processing equipment for marine engine exhaust emission, the present invention also provides for using above-mentioned
Processing equipment for marine engine exhaust emission processes the first method of waste gas, and described method comprises the steps:
Prepare doctor solution: magnesium oxide is provided, makes magnesium hydroxide liquid with sea water；
There is provided described doctor solution: described magnesium hydroxide liquid is provided the middle cavity volume of described desulfurizer；
Desulfurization waste gas: the described middle cavity volume at described desulfurizer carries out desulfurization process to the waste gas of input.
In a preferred embodiment, it is provided that the step of described doctor solution also includes: described magnesium hydroxide liquid is inputted
To the lower cavity volume of described desulfurizer, mix with the fluid in described lower cavity volume；Described desulfurization is provided by mixed fluid
The middle cavity volume of device.
According to the first method using the above-mentioned processing equipment for marine engine exhaust emission to process waste gas, if
Described magnesium oxide in above-mentioned first method is finished, described method include also including second method, described second method include as
Lower step:
Prepare doctor solution: provide sea water, with sea water as doctor solution；
There is provided described doctor solution: described sea water is provided the middle cavity volume of described desulfurizer；
Desulfurization waste gas: the described middle cavity volume at described desulfurizer carries out desulfurization process to the waste gas of input.
According to above-mentioned a kind of processing equipment for marine engine exhaust emission, the present invention also provides for using above-mentioned
Processing equipment for marine engine exhaust emission processes the third method of waste gas, and described third method comprises the steps:
Prepare doctor solution: provide sea water, with sea water as doctor solution；
There is provided described doctor solution: described sea water is provided the middle cavity volume of described desulfurizer；
Desulfurization waste gas: the described middle cavity volume at described desulfurizer carries out desulfurization process to the waste gas of input.
In above-mentioned second method and third method, it is provided that the step of described doctor solution also includes: by defeated for described sea water
Enter the lower cavity volume to described desulfurizer, mix with the fluid in described lower cavity volume；It is described de-that mixed fluid is provided
The middle cavity volume of sulfur device.
In above-mentioned second method and third method, it is provided that the step of described doctor solution also includes: by described doctor solution
The upper cavity volume of described desulfurizer is provided to.
The improvement aspect of the present invention is, Sea water respiratory distress syndrome and two kinds of technology of sea water magnesio doctor treatment are united two into one.
Implement two kinds of doctor treatments with a set of marine diesel desulfurizer, play the advantage of two kinds of different technologies, solved by mutual supplement with each other's advantages
Certainly marine diesel exhaust emission purification problem, this is the new development of desulfurization technology under boats and ships specific environment, empty to adapt to boats and ships
Between narrow and small, the situation of scarcity of fresh water resources.Making full use of seawater resources is boats and ships water balcony optimum selections, boats and ships oceangoing voyage
Different doctor treatments, available Sea water respiratory distress syndrome, it is possible to select sea water magnesio is selected for different National Sea environmental requirements
Doctor treatment.So, both can be substantially reduced oceangoing voyage cost of transportation, improve ship's navigation economy, be able to carry out again the world simultaneously
The environmental requirement that boat diesel engine is discharged by International Maritime Organization (IMO).
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the marine internal combustion engine emission-control equipment of prior art；
Fig. 2 is the elevational schematic view of the structure of the gasotron in Fig. 1；
Fig. 3 is the elevational schematic view of the structure of the sprayer unit in Fig. 1；
Fig. 4 is the elevational schematic view of the structure of the moisture trap in Fig. 1；
Fig. 5 is the processing equipment for the discharge of engine of boat and ship waste gas according to the present invention, and they are based on sea water and magnesium double
Base method is operated.
Detailed description of the invention
Principle explanation
The technology of magnesia FGD method is the most ripe, is only second to the sulfur removal technology of calcium method, is used for thermal power plant.Magnesium oxide
It is because magnesium oxide as desulfurizing agent and there is the general character of basic anhydride, its odorless, tasteless, nontoxic, it is typical alkaline-earth metal
Oxide, generates magnesium hydroxide under certain condition when being combined with water, reacts in alkalescence, and the PH of saturated aqueous solution is 10.3-
11.Magnesia FGD chemical reaction is as follows:
MgO+H2O=Ma (OH)2
Mg(OH)2+SO2=MgSO3Ten H2O
MgSO3Ten H2O+SO2=Mg (HSO3)2
MgSO3+1/2O2=MgSO4
Magnesium oxide also has extremely fireproof insulating properties, these characteristics of magnesium oxide plus with in sea water with after react into hydrogen
Magnesium oxide, makes desulfurizing agent and solves the problem that boats and ships lack fresh water.Sea water and magnesium oxide is used to carry out desulfurization and played sea simultaneously
Water has the alkaline matter of natural 1.2-2.5mg equivalent and PH is the acidic buffer capacity of 7.8-8.3, and both absorb bavin jointly
S02 in oil machine discharge flue gas, sea water can be as the multiplication agent in magnesia FGD agent, and it is the easiest that simultaneous oxidation magnesium is insoluble in water
Being dissolved in sea water, therefore sea water, the double-basis combined method of magnesium are applied to the desulfurization of boat diesel engine parent's sea water platform and seem and bring out the best in each other,
Making whole system structure simpler, operating cost is more more economical than calcium-based desulfurization.
One embodiment of the present of invention is that the waste gas discharging boat diesel engine carries out technical finesse, referred to as post processing skill
Art.
The technology of the present invention can not only apply the control at marine internal combustion engine gas emission, applies also for the tool being similar to
Have in other vehicles of sea water and the mechanical engineering of exhaust emission situation, such as, offshore oil, exploitation of mineral resources drilling platforms,
Sea, seashore diesel generator group and diesel powered source.Therefore, protection scope of the present invention is not limited to the enforcement of description
Example.
As shown in Figure 5, it is shown that according to the processing equipment for marine engine exhaust emission of the present invention, this equipment bag
Include desulfurizer 60, magnesium oxide warehouse 50, magnesium hydroxide preparation tank 40, oxidation cabinet 30, discharge opeing processor 20 and PAH processor
70。
Desulfurizer 60 includes container 67, upper cavity volume 68a, middle cavity volume 68b and lower cavity volume 68c, and wherein, lower cavity volume 68c uses
In accommodating fluid, middle cavity volume 68b carries out desulfurization process, and upper cavity volume 68a carries out gas-liquid separation process.Desulfurizer 60 also includes
One entrance the 61, second entrance the 62, the 3rd entrance 63, the 4th entrance 64 and the 5th entrance 65 and the first outlet 61a, the second outlet
62a and the 3rd outlet 63a.
First entrance 61 and the second entrance 62 are in fluid communication with middle cavity volume 68b respectively, and the first entrance 61 inputs to be processed
Waste gas, the second entrance 62 can connect with seawater fluid it is thus possible to input sea water.First outlet 61a and upper cavity volume 68a fluid
Connecting the waste gas being desulfurized with discharge, the second outlet 62a and lower cavity volume 68c is in fluid communication.
3rd entrance 63 can be in fluid communication with the lower cavity volume 68c of desulfurizer 60, with magnesium hydroxide preparation tank 40 with
Fluid communication is formed, so that the magnesium hydroxide doctor solution in magnesium hydroxide preparation tank 40 is passed through the 3rd between lower cavity volume 68c
Entrance 63 is transported to lower cavity volume 68c.3rd outlet 63a can be in fluid communication with the lower cavity volume 68c of desulfurizer 60, with second
Fluid communication is formed, so that the fluid in lower cavity volume 68c is defeated by the 3rd outlet 63a between entrance 62 and lower cavity volume 68c
Deliver to middle cavity volume 68b.
4th entrance 64 can be in fluid communication with the lower cavity volume 68c of desulfurizer 60, with the solid-liquid at discharge opeing processor 20
Fluid connection pipeline is formed between separator 21 and lower cavity volume 68c, thus by least part of liquid loopback of solid-liquid separator 21
In lower cavity volume 68c.5th entrance 65 can be in fluid communication with the upper cavity volume 68a of desulfurizer 60, with the second entrance 62 with
Between upper cavity volume 68a formed fluid communication, thus by input desulfurizer 60 middle cavity volume 68b in so that waste gas is taken off
A part for the sea water of sulfur is transported to the upper cavity volume 68a of desulfurizer 60, in the operation of gas-liquid separation, carries out to clean
The device of gas-liquid separation operation.
As it is shown in figure 5, magnesium hydroxide preparation tank 40 can with the second entrance 62 of desulfurizer 60, magnesium oxide warehouse 50 and
Sea water is in fluid communication respectively.Magnesium oxide warehouse 50 is used for depositing magnesium oxide, the magnesium oxide in magnesium oxide warehouse 50 and sea water difference
It is transported in magnesium hydroxide preparation tank 40, thus in magnesium hydroxide preparation tank 40, produces magnesium hydroxide liquid.Magnesium hydroxide system
Magnesium hydroxide liquid in standby tank 40 directly can be input to the middle cavity volume 68b of desulfurizer 60 by the second entrance 62.One
In preferred embodiment, the magnesium hydroxide liquid in magnesium hydroxide preparation tank 40 can also be input to desulfurization by the 3rd entrance 63 and fill
Put in the lower cavity volume 68c of 60, mix with the fluid in the lower cavity volume 68c being deposited in desulfurizer 60, the most together by the 3rd
The middle cavity volume 68b that outlet 63a is transported to desulfurizer 60 through the second entrance 62 carries out desulfurization process.
It is in fluid communication as it is shown in figure 5, oxidation cabinet 30 exports 62a with the second of desulfurizer 60 to be received in desulfurizer 60
Lower cavity volume 68c in desulfurized fluid, oxidation cabinet 30 also with air communication with input air, oxidation cabinet 30 include fluid issuing with
Discharge aerated fluid therein.
As it is shown in figure 5, discharge opeing processor 20 and the fluid issuing fluid communication aoxidizing cabinet 30 aoxidize in cabinet 30 to receive
Aerated fluid, discharge opeing processor 20 include solid-liquid separator 21 with collect aerated fluid the solid separating in aerated fluid and
Useless solid collector 22 is to collect the solid in aerated fluid, and solid-liquid separator 21 includes the liquid outlet discharging liquid.
The waste desulfurizing agent of the such as less than PH6-6.5 in the desulfurized fluid in lower cavity volume 68c in desulfurizer 60 is permissible
Enter oxidation cabinet 30 by the second outlet 62a, squeeze into air with air pump and force waste desulfurizing agent therein is aoxidized, catalysis
Magnesium sulfite MgSO in waste desulfurizing agent3Reaction generates magnesium sulfate MgSO4, subsequently into the solid-liquid separator of discharge opeing processor 20
21, the above clear liquid in solid-liquid separator 21 returns desulfurizer 60 by the 4th entrance 64 to be continued to participate in circulation to enter
Row desulfurization processes, and other liquid is discharge after PH, PAH Turbidity measurement is up to standard.Isolated solid waste loads useless solid and collects
Return bank after the sealing container of device 22 to be uniformly processed.
As it is shown in figure 5, processing equipment also includes that PAH processor 70, PAH processor 70 divide with the solid-liquid of discharge opeing processor 20
Liquid outlet from device 21 is in fluid communication, to receive the liquid in solid-liquid separator 21 PAH in adsorptive liquid, and PAH process
Device 70 includes the liquid discharge outlet discharging processed liquid therein.If its PAH of liquid discharged from solid-liquid separator 21 is (many
PAH), turbidity and nitrate detection the most up to standard, then make this liquid through PAH processor 70 process after discharge again.
The processing equipment for marine engine exhaust emission using the present invention can process useless the most at low cost
Gas.Such as, in the case of boats and ships have magnesium oxide, make magnesium hydroxide liquid with sea water；The magnesium hydroxide liquid that will make
The middle cavity volume 68b of desulfurizer 60 is provided as desulfurizing agent；At the middle cavity volume 68b of desulfurizer, the waste gas of input is taken off
Sulphuring treatment.
Further, magnesium hydroxide liquid also can be input to by the 3rd entrance 63 the lower cavity volume 68c of desulfurizer, with
Desulfurized fluid mixing in lower cavity volume 68c；Desulfurization is provided by the 3rd outlet 63a and the second entrance 62 by mixed fluid
The middle cavity volume 68b of device is to carry out desulfurization process.
If magnesium oxide is finished, in the case of can't supplementing magnesium oxide, with sea water as doctor solution；Sea water is direct
The middle cavity volume 68b of desulfurizer is provided to；At the middle cavity volume 68b of desulfurizer, the waste gas of input is carried out desulfurization process.
Further, sea water also can be input to the lower cavity volume 68c of desulfurizer by the 3rd entrance 63, with lower cavity volume
Desulfurized fluid mixing in 68c；Desulfurizer is provided by the 3rd outlet 63a and the second entrance 62 by mixed fluid
Middle cavity volume 68b is to carry out desulfurization process.
In a preferred embodiment, also doctor solution can be provided in the upper cavity volume 68a of desulfurizer, to contribute to upper
Gas-liquid separation in cavity volume 68a cleans, in processing, the device carrying out gas-liquid separation operation.
Marine boats and ships are flowing platforms, and once magnesium oxide can not get supplementing in time, can directly use sea water desulfuration, not shadow
Ring diesel emission purification treatment.Sea water, magnesium oxide combination type exhaust-gas treatment both can individually administer diesel exhaust with sea water
Discharge, again can sea water and magnesium oxide combination after administer dual fuel of diesel engine, it is achieved that desulfurization high efficiency and low cost, and should
Technology is applicable to obsolete vessel transformation, to promote the effect of exhaust-gas treatment.
Above-mentioned exemplary embodiment shows two in the technical scheme solving the technical problem to be solved in the present invention
Embodiment.Under the example of this embodiment, other meets the equivalence of the principle of the invention and broadly falls into present invention guarantor with similar means
In the scope protected.The basic inventive principle of the present invention is, implements two kinds of doctor treatments with a set of marine diesel desulfurizer, can adopt
With Sea water respiratory distress syndrome, it is possible to use sea water magnesio doctor treatment, to adapt to the situation of boats and ships narrow space, scarcity of fresh water resources,
It is applicable to obsolete vessel transformation, can avoid using fresh water, be particularly suited for oceangoing voyage, improve the purified treatment effect of waste gas discharge
Really, improve again the economy that exhaust emission purification processes simultaneously.
Each feature in above example can also make combination in any in the reasonable scope according to the principle of the invention, this
Combination also falls within the scope of the present invention.
Claims (10)
1., for the processing equipment of marine engine exhaust emission, described equipment includes:
Desulfurizer (60), described desulfurizer (60) including:
Container (67)；
Upper cavity volume (68a), middle cavity volume (68b) and lower cavity volume (68c), wherein, described lower cavity volume (68c) is used for accommodating fluid, institute
Stating middle cavity volume (68b) and carry out desulfurization process, described upper cavity volume (68a) carries out gas-liquid separation process；
First entrance (61) and the second entrance (62), be in fluid communication with described middle cavity volume (68b), described first entrance (61) respectively
Inputting waste gas to be processed, described second entrance (62) can connect with seawater fluid；
First outlet (61a) and the second outlet (62a), described first outlet (61a) and described upper cavity volume (68a) be in fluid communication with
The waste gas that discharge is desulfurized, described second outlet (62a) is in fluid communication with described lower cavity volume (68c)；
Deposit the magnesium oxide warehouse (50) of magnesium oxide；
Magnesium hydroxide preparation tank (40), described magnesium hydroxide preparation tank (40) can be with described the second of described desulfurizer (60)
Entrance (62), described magnesium oxide warehouse (50) connect with described seawater fluid；
Oxidation cabinet (30), described second outlet (62a) fluid communication of described oxidation cabinet (30) and described desulfurizer (60) with
It is received in the desulfurized fluid in the described lower cavity volume (68c) of described desulfurizer (60), also with air communication to receive described sky
Gas, described oxidation cabinet (30) includes that fluid issuing is to discharge aerated fluid therein；
Discharge opeing processor (20), the described fluid issuing fluid communication of described discharge opeing processor (20) and described oxidation cabinet (30) with
The described aerated fluid in described oxidation cabinet (30), described discharge opeing processor (20) is received to include:
Solid-liquid separator (21) is with the liquid collected in described aerated fluid and separates the solid in described aerated fluid；With
Useless solid collector (22) is to collect the solid in described aerated fluid；
Wherein, described solid-liquid separator (21) includes the liquid outlet discharging described liquid.
2. the processing equipment for marine engine exhaust emission as claimed in claim 1, it is characterised in that described desulfurization fills
Put (60) also to include:
3rd entrance (63), described 3rd entrance (63) can be with described lower cavity volume (68c) fluid of described desulfurizer (60)
Connection, to form fluid communication between described magnesium hydroxide preparation tank (40) and described lower cavity volume (68c)；
3rd outlet (63a), described 3rd outlet (63a) can be flowed with the described lower cavity volume (68c) of described desulfurizer (60)
Body connects, to form fluid communication between described second entrance (62) and described lower cavity volume (68c).
3. the processing equipment for marine engine exhaust emission as claimed in claim 2, it is characterised in that described desulfurization fills
Put (60) also to include:
4th entrance (64), described 4th entrance (64) can be with described lower cavity volume (68c) fluid of described desulfurizer (60)
Connection, to form liquid between the described solid-liquid separator (21) and described lower cavity volume (68c) of described discharge opeing processor (20)
Connection.
4. the processing equipment for marine engine exhaust emission as claimed in claim 3, it is characterised in that described desulfurization fills
Put (60) also to include:
5th entrance (65), described 5th entrance (65) can be with described upper cavity volume (68a) fluid of described desulfurizer (60)
Connection, to form fluid communication between described second entrance (62) and described upper cavity volume (68a).
5. the processing equipment for marine engine exhaust emission as claimed in claim 4, it is characterised in that described process sets
The standby described solid-liquid separator also including PAH processor (70), described PAH processor (70) and described discharge opeing processor (20)
(21) liquid outlet fluid communication, to receive the described liquid in described solid-liquid separator (21) and to adsorb in described liquid
PAH, described PAH processor (70) includes the liquid discharge outlet discharging processed liquid therein.
6. use the processing equipment for marine engine exhaust emission described in any one in claim 1-5 to process
The method of waste gas, described method comprises the steps:
Prepare doctor solution: magnesium oxide is provided, makes magnesium hydroxide liquid with sea water；
There is provided described doctor solution: described magnesium hydroxide liquid is provided the middle cavity volume (68b) of described desulfurizer (60)；
Desulfurization waste gas: the described middle cavity volume (68b) at described desulfurizer carries out desulfurization process to the waste gas of input.
7. the method processing waste gas as claimed in claim 6, it is characterised in that provide the step of described doctor solution also to include:
Described magnesium hydroxide liquid is input to the lower cavity volume (68c) of described desulfurizer, with the stream in described lower cavity volume (68c)
Body mixes；
Mixed fluid is provided the middle cavity volume (68b) of described desulfurizer.
8. use the processing equipment for marine engine exhaust emission described in any one in claim 1-5 to process
The method of waste gas or method as claimed in claim 6, the described magnesium oxide in the described method of claim 6 is finished, described
Method comprises the steps:
Prepare doctor solution: provide sea water, with sea water as doctor solution；
There is provided described doctor solution: described sea water is provided the middle cavity volume (68b) of described desulfurizer；
Desulfurization waste gas: the described middle cavity volume (68b) at described desulfurizer carries out desulfurization process to the waste gas of input.
9. the method processing waste gas as claimed in claim 8, it is characterised in that provide the step of described doctor solution also to include:
Described sea water is input to the lower cavity volume (68c) of described desulfurizer, mixes with the fluid in described lower cavity volume (68c)；
Mixed fluid is provided the middle cavity volume (68b) of described desulfurizer.
10. the method processing waste gas as described in claim 6 or 8, it is characterised in that provide the step of described doctor solution also to wrap
Include:
Described doctor solution is provided the upper cavity volume (68a) of described desulfurizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610970939.XA CN106310942A (en) | 2016-10-31 | 2016-10-31 | Treating device for engine exhaust emission of vehicle or mechanical engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610970939.XA CN106310942A (en) | 2016-10-31 | 2016-10-31 | Treating device for engine exhaust emission of vehicle or mechanical engineering |
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| Publication Number | Publication Date |
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| CN106310942A true CN106310942A (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610970939.XA Withdrawn CN106310942A (en) | 2016-10-31 | 2016-10-31 | Treating device for engine exhaust emission of vehicle or mechanical engineering |
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| Country | Link |
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Cited By (1)
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| CN110064303A (en) * | 2019-04-24 | 2019-07-30 | 南京航空航天大学 | Based on the supercritical carbon dioxide desulfurization integrated device and method of power generation peculiar to vessel |
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