CN102337948A - Reduction system of exhaust gas pollution and its monitoring method - Google Patents
Reduction system of exhaust gas pollution and its monitoring method Download PDFInfo
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- CN102337948A CN102337948A CN2010102518996A CN201010251899A CN102337948A CN 102337948 A CN102337948 A CN 102337948A CN 2010102518996 A CN2010102518996 A CN 2010102518996A CN 201010251899 A CN201010251899 A CN 201010251899A CN 102337948 A CN102337948 A CN 102337948A
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- exhausting air
- washing machine
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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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/004—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 specially adapted for marine propulsion, i.e. for receiving simultaneously engine exhaust gases and engine cooling water
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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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
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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
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/04—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust using liquids
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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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/14—Nitrogen oxides
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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
- 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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- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
-
- 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
- F01N9/00—Electrical control of exhaust gas treating apparatus
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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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ocean & Marine Engineering (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas After Treatment (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention relates to a reduction system of exhaust gas pollution and its monitoring method, which are used for purifying and discharging exhaust gas generated from a ship engine. Particularly, exhaust gas generated from a ship engine started for travel of the ship comprises various harmful substances, for the way of discharging the harmful gas without purifying treatment, a current trend is to reinforce control via various treaties or regulations. The invention relates to a ship exhaust gas reduction system satisfying the control measures. Further, the invention also relates to a monitoring method for ship exhaust pollution monitoring purifying process of pollution water generated during purification of exhaust gas, and performing documenting processing.
Description
Technical field
The present invention relates to a kind of exhaust contaminant and reduce system and monitoring method thereof, be used for the exhausting air that produces from engine of boat and ship is purified and discharges.Especially, the gas that motor discharged that is used for starting in order to move boats and ships contains various harmful matters, and current trends are just to strengthen the way that control is discharged without purified treatment through various treaties or rules in the world.The present invention relates to this boats and ships exhaust of satisfying said measure of control and reduce system.Further, the invention still further relates to a kind of monitoring method, the water purification process that produced pollution water purifies when being used for exhausting air purification and purification is monitored and is carried out documentation and handle.
Background technique
Have strong toxicity and corrosivity from the exhausting air of being discharged, not only human body is worked the mischief, when it directly is disposed in the atmosphere, possibly become one of reason of environmental pollution simultaneously such as the means of transportation of boats and ships etc.Therefore, need bear following obligation: must carry out purified treatment to this exhausting air, the content of harmful components is reduced to below the safe level; The exhaust row that simultaneously, only will pass through the purified treatment of removing pollutant is to atmosphere.
Especially; In recent years owing to boats and ships wantonly discharge of noxious gases cause various harm; Various countries progressively launch the control activity through the form of treaty or agreement, have set up the treaty of strengthening the control of exhausting air discharge capacity at present through the effort of several years interimly.In addition, will formulate from now on according to the big or small and different exhausting air of boats and ships and discharge permitted value, and its discharge capacity will accurately be measured,, will be difficult to continue to run for the boats and ships of violating said regulation to realize information exchange each other.
Common employed harmful gas processing method has: combustion manner, wetting (Wetting) mode, absorption (absorption) mode etc.Combustion manner mainly is, decomposes under the about 500-800 of high temperature combustors ℃ high temperature to flammable gas such as containing the hydrogen base and handles the mode of exhausting air; Moistening mode mainly is to water-soluble gas it to be dissolved the mode of handling exhausting air through water; Suction type mainly is to flame retardancy or water-fast harmfulness gas it to be accomplished the mode of purification process through sorbent and under physics or chemical suction-operated.
This exhausting air processing procedure can comprise; For example; From the exhausting air class, remove the washing (scrubbing) of materials such as sour gas or particulate matter and handle, the device of harmful gas that uses liquid to remove like this to contain in the gas or particulate matter etc. is referred to as washing machine (scrubber).
Fig. 1 is the structural drawing of the existing wet scrubber of explanation (scrubber), and the upper end of washing machine is equipped with suction port 1, and the centre is provided with barrier film 4.If during with 2 water sprays of formed nozzle on the washing machine, said water moves to adsorber (absorber) 3.
When gas molecule gets into suction port, gas through injection space that water is arranged and adsorber and with the water generates reaction, only remaining gas is moved to top through the barrier film bottom and through outlet pipe 5 dischargings.At this, said adsorber 3 is used to increase the surface area of gas process and increase the reaction time, has the form of shavings usually.At this moment, get into water cycle groove 7 with the aitiogenic water of gas through waste pipe 6.
But; As described above; Saidly, said adsorber or other structures wait the method that improves reactivity and purification ratio need occupy than the large space volume through being installed; And must adopt the cooling unit that reduces the reaction gas temperature in addition in order to improve its reactivity, therefore being used for Move tool aspects such as boats and ships or automobile exists certain narrow limitation.
Therefore; Inventor of the present invention; To wet scrubber (scrubber) narrow limitation, developed the eddy flow washing machine of Move tools such as suitable boats and ships, it not only can the realization response surface area and the maximization in reaction time; Simultaneously can also guarantee only to use minimized space, and not need other cooling unit etc.What Fig. 2 represented is exactly this eddy flow washing machine, when the exhausting air of boats and ships gets into inflow portion 21, carries out the structure that seawater sprays through first nozzle 22.The exhausting air that flows into is through after being formed the seawater of microparticle thing by first nozzle 22; Contact and produce reaction with the seawater of discharging from second nozzle 23 that is formed at washing machine 20 cylindrical part, during the seawater curtain film that forms through second nozzle 23 and seawater directly produce reaction.Through this process, exhausting air will be purified.
Mark 24 is mist segregating units in the accompanying drawing.
The present invention is in the process of using Fig. 2 eddy flow washing machine (korean patent application 10-2009-41793 number) that claimant of the present invention proposed, further proposes to purify and monitor the method for various exhausting air.The purification plant that the purifying effect that aforementioned eddy flow washing machine is a kind of desulfurization and dust is very outstanding.Therefore, the present invention proposes, and it is appended the reduction device of compositions such as denitration and minimizing carbon dioxide are installed, and to its method and system of monitoring.
Summary of the invention
The present invention provides a kind of will reduce system and monitoring method thereof by the exhausting air pollutant that the exhausting air that engine of boat and ship produces carries out discharging after the purified treatment.
Specifically, contain various harmful pollutants in the exhausting air that motor produced of working for boats and ships operations, the present invention is for a kind of combination system is provided, and it can effectively satisfy the regulation of it being carried out the International Maritime mechanism of control.Further, the present invention provides the monitoring method that a kind of purification process of the polluted water that produces when exhausting air is purified and purifies is monitored and its documenting is handled.
Reduce system according to exhausting air pollutant of the present invention, comprising: the washing machine 20 of the seawater of introducing through pump 71 purifying to the exhausting air of supply line supply from engine of boat and ship 10; Purification is by the polluted water water purifying plant 30 of the polluted seawater of washing machine 20 dischargings; Collection is deposited in the residue groove 72 of residue in the polluted water water purifying plant 30; And, to the exhausting air state of changing of said motor 10 and the supervisory device of monitoring with the polluted water state of changing that polluted water water purifying plant 30 purifies 60.
Reduce system according to exhausting air pollutant of the present invention, when the washing machine 20 supply seawater, can discharge pollutants to carbon dioxide etc. during seawater through electrolytic module 75 supply electrolysis purifies extraly through pump 71.
And reduce system according to exhausting air pollutant of the present invention; Through pump 71 when the washing machine 20 supply seawater; The seawater of supply in order to improve the contacting efficiency of brine electrolysis and exhausting air, is provided with dual intake channel through other electrolytic module 75 supply brine electrolysis.Supervisory device 60 can optionally be arranged on the following parts, and the pollution level of exhausting air and discharge water is monitored and carried out emission control, and said parts are: exhausting air is supplied to the supply tube of washing machine 20; The exhausting air that purifies is disposed to outside outlet pipe from washing machine 20; From the supply tube of washing machine 20 with salt water supply to the polluted water water purifying plant 30 that pollutes; The polluted water water purifying plant is to the discharge pipe of outside emission purification water.Said system also comprises selective catalytic reduction device 50; It comprises: the supply tube that exhausting air is supplied to washing machine 20 maybe is provided with by washing machine 20 exhausting air that purifies on the outlet pipe of outside drain; The heat exchanger and the exhausting air heating equipment 76 that between the exhausting air that flows into undressed exhausting air before the washing machine 20 and handle, carry out heat exchange through washing machine 20, and the catalysis device of nitrogen oxide through waveform reduced.
In addition; Reduce system according to exhausting air pollutant of the present invention; Wherein, maybe the exhausting air that purifies is provided with dust removal device 40 by washing machine 20 and removes fine solid particle on the outlet pipe of outside drain at the supply tube that exhausting air is supplied to washing machine 20.Supervisory device 60 comprises: exhaust gas analyzer, the analytical equipment 69, the supervisory control comuter 77 that are made up of the discharge water analytical equipment.Said exhaust gas analyzer optionally comprises: the NOx analyzer 61 that is used for being determined at the NOx constituent concentration that exhausting air changes; Be used to measure the SOx analyzer 62 of SOx constituent concentration; Be used to measure the dust analysis device 63 of dust such as particulate matter; Be used to measure C0, CO
2And O
2The COx/O of concentration
2Analyzer 64.The said analytical equipment 69 that is made up of the discharge water analytical equipment optionally comprises: the pH analyzer 65 that is used for measuring the hydrogen-ion concentration that changes from the polluted water of washing machine 20 dischargings; Be used to measure the turbidity analyzer 66 of the muddy degree of polluted water; Be used for indirect measurement and comprise oil content parser 67 without hydrocarbon type of concentration of the carbon that burns.Said supervisory control comuter 77 is used for the content that detects from the said analyzer of having selected is made up and produce control signal, and then control exhaust and discharging.Said supervisory device combines above-mentioned each item content, measures NOx, SOx, dust and CO, CO
2, O
2The concentration of exhausting air composition and pH, dirty degree, wet goods polluted water composition, control and adjusting discharge amount are finally carried out documenting and are handled.
Reduce the monitoring method of system according to exhausting air pollutant of the present invention, comprise the steps:
First step is to the steps A of analyzing from the exhausting air of motor 10 dischargings 110;
Second step is to the steps A of analyzing from the exhausting air of washing machine 20 dischargings 120;
Third step is to the steps A of analyzing from the polluted water of washing machine 20 dischargings 130;
The 4th step is to the steps A 140 of purifying waste water and analyzing from 30 dischargings of polluted water water purifying plant;
The 5th step, monitoring analysis content and control system are carried out documenting processed steps A150 with monitor procedure.
In addition, reduce the monitoring method of system, wherein: in second step, analyze exhausting air,, then discharge this gas if when being in discharging and allowing the dustiness scope by washing machine 20 dischargings according to exhausting air pollutant of the present invention; Allow outside the dustiness scope if be in discharging, this exhausting air that then circulates again also reduces processing through washing machine 20 again; In the third step; Analyze washing machine 20 employed seawater,, be discharged into the sea if when being in discharging after the polluted water that its state is changed is analyzed and allowing the dustiness scope; Allow then to move to polluted water water purifying plant 30 again outside the dustiness scope if be in to discharge; In the 4th step, discharged by purifying waste water of handling of polluted water water purifying plant 30, its residue is saved to residue groove 72.
According to the present invention, it has the following advantages: help preventing public hazards through reducing boats and ships to the harmful gas of outside drain, and the seawater that is used to reduce noxious emission gas become be disposed to through purified treatment after the polluted water marine.
According to the present invention, it also has the following advantages: can help effectively carrying out denitrogenation, the desulfurization of the harmful gas of engine emission and reduce dust and carbon dioxide, reduce the harmful components in the exhausting air.
The reduction device that proposes among the present invention is installed, not only can be satisfied management and control measures such as convention that international body proposes to the behavior of boats and ships noxious gas emission or treaty, and harmful exhausting air can optionally be installed reduce system architecture, improved applicability.
Description of drawings
Fig. 1 is the existing general washing machine schematic representation that uses;
Fig. 2 is the washing machine schematic representation that claimant of the present invention proposes;
Fig. 3 is the fundamental system schematic representation that pollutant of the present invention reduces system;
Fig. 4 is the reduction combination system schematic representation that the present invention includes other examples;
Fig. 5 is the supervisory device schematic representation that the present invention uses;
Fig. 6 is that the pith-pollutant of system of the present invention reduces the constituted mode of device and the internal structure block schematic diagram of analytical equipment;
Fig. 7 is the flow chart of monitoring method of the present invention;
Fig. 8 is the flow chart of monitoring method details of the present invention.
Description of reference numerals:
10: motor 2O: washing machine
40: dust removal device 30: the polluted water water purifying plant
50: selective catalytic reduction device 60: supervisory device
61:NOx analyzer 62:SOx analyzer
63: dust analysis device 64:C-analyzer
69: analytical equipment 71: pump
72: residue groove 73: the residue treatment facility
74: recovering mechanism 75: electrolytic module
76: heat exchanger/heating equipment 77: supervisory control comuter
80: radio communication is arranged
Embodiment
The present invention relates to be used to reduce the reduction system of the engine exhaust gas harmfulness of boats and ships generation in service, its structure and effect are like Fig. 3-shown in Figure 8.
The present invention is as shown in the figure, and it has washing machine 20, and the seawater that is used for introducing through pump 71 is to being purified by the exhausting air of engine of boat and ship 10 to the supply line supply; Also have sewage water purifying plant 30, purify the polluted seawater of discharging from washing machine 20; Also have residue groove 72, collect and be deposited in the residue in the polluted water water purifying plant 30.And have supervisory device, be used to monitor the state of changing of said motor 10 exhausting air and the polluted water state of changing that purifies by polluted water water purifying plant 30.And, in conjunction with said each item content the exhausting air that boats and ships produce is purified and discharges, simultaneously it is monitored.
The present invention is through using eddy flow washing machine 20 that claimant of the present invention develops and the various exhausting air of boats and ships discharging being carried out the system of purified treatment.System of the present invention is formed with the said washing machine 20 that can directly receive from the exhaust gas of motor 10, and the opposite side of washing machine 20 is introduced seawater through pump 71 and supplied.Boats and ships are introduced seawater through pump 71 in running, the one of which side makes exhausting air in the washing machine 20 of cyclone separator formula, obtain centrifugal force and supplies, and opposite side is the seawater multiple injection, make the exhausting air adsorbing seawater and accomplish purification.If said eddy flow washing machine 20 is explained in more detail; It is the segregating unit that has utilized centrifugal force; Said centrifugal force produces through flowing into the inner fluid rotating flow of cyclone separator; Under the situation of gas cyclone device, when solid particulate matter that in divided gas flow, is suspending or drop, separate according to the granularity of solid particulate matter that is suspending in the gas or drop or the difference of proportion.
Especially, washing machine 20 according to the present invention has the function of SOx contained in the separate discharge gas and dust composition.That is, remove the harmful components in the exhausting air, isolate the solid particulate matter, the drop that contain in the gas through desulfurization.At this moment, for exhausting air carry out desulfurization and the seawater removed after the dust effect contaminated, therefore can not directly be disposed to seawater.
Just can be disposed in the sea when having only the desired draining enabled condition of the International Maritime of satisfying mechanism through the polluted water of washing machine 20.
Therefore, the present invention also should comprise other polluted water water purifying plant 30, is used for purifying into removing the contaminated seawater of harmful components of exhausting air.
With salt water supply to washing machine 20, the seawater of being supplied sprays with microparticle thing form, and with the pollutant in the absorption exhausting air, in this process, seawater becomes polluted water, then should purify through polluted water water purifying plant 30.Said polluted water water purifying plant 30 can be selected the method for different shape according to the characteristic of boats and ships and user's requirement.The polluted water water purifying plant of being implemented among the present invention 30 is following.
At first, seawater is polluted through washing machine 20, and it becomes the polluted water with acid and dirty degree, and this polluted water is saved to tank for the time being.The polluted water that is saved in tank is transferred to pump or the centrifugal separator that utilizes centrifugal force and is separated into residue and primary purification water; The residue of alluvial is transferred to residue groove 72, and primary purification water then utilizes chemical substance such as NaOH to carry out being disposed to after the neutralisation treatment marine.
Another kind of process for purifying water is in order primary purification water to be separated into once more water and unburned fuel (oil), it to be transferred to oil separator.And, being saved to oil groove by the oil component of this separator separates, the double purification water of removing oil component purifies through charcoal filter once more, and is disposed to the boats and ships outside after using the NaOH dissolving to accomplish the chemical cleaning method process.
Another characteristic of the present invention is that the exhausting air that can monitor said engine of boat and ship 10 is carried out once more the process of water purification through discharging process behind the purification process with to the seawater of purification of exhaust gas.That is, measure initial dustiness, measure its dustiness once more when this exhausting air is discharged through washing machine 20 backs, and analyze its comparison value by the exhausting air of engine emission.Simultaneously, can also monitor the polluted water dustiness that said washing machine 20 is discharged measures and the dustiness of purifying waste water that is disposed to the boats and ships outside is measured once more.
Explain that in conjunction with Fig. 4 the exhaust contaminant among the present invention reduces the concrete structure and the effect of system, said system reduces on the system-based at basic exhausting air pollutant also to comprise device.As shown in Figure 4, the present invention preferably, through pump 71 during with salt water supply to washing machine 20, through electrolytic module 75 supply brine electrolysis.
The washing machine 20 that uses among the present invention is designed to, and utilizes the difference of the proportion of the solid particulate matter that suspending in the gas or drop to separate, and utilizes the seawater microparticle thing that is sprayed by a plurality of spray nozzles to purify, and especially desulfurized effect is wanted significantly.But, in this separation process, compare direct mode with salt water supply to washing machine 20, supply can be removed the CO in the exhausting air more effectively to the mode that seawater improves the brine electrolysis of basicity
2Not directly to drop into seawater, but convert seawater into brine electrolysis that the brine electrolysis with conversion drops into washing machine then through electrolytic module 75.The brine electrolysis of supply mixes with exhausting air in its washing machine 20 or carries out chemical combination in this way, not only can effectively remove CO
2, can also effectively separate NOx.In addition,, can be designed to, can be in charge of for dual and transmit, so that the efficient of raising washing machine 20 flowing into pipe arrangement to washing machine 20 connecting directions in order to improve the contacting efficiency of brine electrolysis and exhausting air at the inflow position of washing machine 20.
To specify the concrete structure and the effect of the supervisory device 60 that provides among the present invention below.
The starting point of system of the present invention is discharge the various harmful components that contain in exhausting air and the filtering emission gas, and this process and content all can realize automatic monitoring.Monitoring method is very various, at first can monitor the initial ejection gas by motor 10 dischargings.For purifying, get into the main component that just can monitor exhausting air before the washing machine 20 and content etc. at motor 10.Harmful components concentration to analyze is benchmark, and decision reduction system should use system application methods such as how many seawater emitted doses.
Said process is a necessary step, and that is to reduce system through pollutant according to the present invention can contrast the dustiness under the dustiness reduction state, and then weighs the validity that reduces system according to pollutant of the present invention.Measure once more from the exhausting air dustiness of washing machine 20 dischargings, whether decision directly is disposed to the hull outside with this exhausting air.When dustiness surpassed reference value, the present invention can comprise the process that circulates once more and then drop into washing machine 20 once more.The method of exhausting air being carried out recirculation is only need carry out simple piping work, just can reduce the temperature of the exhausting air behind the engine combustion stroke, so can also be used to reducing the concentration of nitrogen oxide in the exhausting air.Said method is owing to produce extra positive effect when can reach the object of the invention, thereby can serviceably be suitable for.
The reference value of said dustiness is through various countries' treaty or the article state of appointment, and it is useful therefore following this reference value.And said treaty or article are also continually strengthened the control to exhaust emission degree permitted value along with the time, consider this trend, comprise the said process of circuit again.
Important a bit is that existing disposal of pollutants gas control treaty or rules are to adopt different permitted values according to boats and ships size and weight, therefore can optionally adopt structure of the present invention according to the boats and ships situation.For the more weak boats and ships of control, can only measure the exhausting air dustiness of discharging from motor 10; For the stronger boats and ships of control, then measure from the dusty gas dustiness of washing machine 20 dischargings, and it is saved as electronic document, and then whole process is monitored.Especially, comprise built-in other valve being disposed to outside outlet pipe from said washing machine 20, if when supervisory device 60 detects the exhausting air of the permitted value scope that exceeds control, switch that can also control valve.Open valve, also directly to the outside exhaust of boats and ships, perhaps throttle down also can carry out recirculation to exhausting air.
In addition, as shown in Figure 5, supervisory device 60 of the present invention not only can be monitored exhausting air, can also monitor simultaneously from the purification process of the polluted water of washing machine 20 dischargings.
According to the present invention, measure from the polluted seawater dustiness of said washing machine 20 dischargings, also to measure and monitor the dustiness after polluted water is passed through polluted water water purifying plant 30 simultaneously.
In a word, as shown in Figure 5, from first to fourth step, optionally measure its dustiness.First and second steps are processes of monitoring exhausting air dustiness, and third and fourth step is to measure the process of polluted water dustiness.Wherein, Can optionally monitor according to boats and ships sizes and weight and reach an agreement on treaty or rules according to system of the present invention; Even if the interpolation monitoring position is monitored owing to adopt from the mode of exhausting air or polluted water sampling, therefore be designed to append in addition and select to monitor.
Aforementioned according to fundamental system of the present invention in, specified the system that reduces the exhausting air dustinesss through washing machine 20.Washing machine 20 is devices of significant desulfurization effect.And, if seawater is carried out electrolysis, make it become the brine electrolysis supply, then can assist in removing CO
2And NOx.
System of the present invention is through the other device of increase in the dustiness reduction system that utilizes this washing machine 20, and then to fall the dustiness of the end for other pollutants.One of them is exactly a selective catalytic reduction device 50.
Promptly; To be also referred to as nitrogen rejection facility with lower device among the present invention; It maybe is disposed to outside outlet pipe increase selective catalytic reduction device 50 with the exhausting air that purifies from washing machine 20 with the supply tube that said exhausting air is supplied to washing machine 20, through the catalysis device reduction nitrogen oxide of waveform.
In the selective catalytic reduction device 50; As shown in Figure 4; Preferably can be incorporated into the upper end and the use of washing machine 20, but the condition of based on fuel can be used also according to shown in Fig. 6 (a), before exhausting air gets into washing machine 20, exhausting air being purified.
As shown in Figure 4, in order to combine selective catalytic reduction device 50, the device 76 that in the time of also need increasing through washing machine 20 exhausting air of cooling off is heated.This heating for exhausting air can realize through getting into before the washing machine 20 mode of carrying out heat exchange with high-temperature gas, but need comprise heating equipment 76 in addition when being lower than target temperature.
Employed selective catalytic reduction device 50 uses water wave (waveform) catalysis device among the present invention, and it has improved durability and convenience is installed.
And, can be designed among the present invention, the supply tube that said exhausting air is supplied to washing machine 20 maybe is disposed to outside outlet pipe increase dust removal device 40 with the exhausting air that purifies from washing machine 20, so that can remove the fine solid particle in the exhausting air.
As shown in Figure 5, said dust removal device 40 is arranged at the upper end of washing machine 20 usually, during in conjunction with said selective catalytic reduction device 50, can be arranged on catalytic reduction device 50 before or after.And as shown in Figure 6, the condition of based on fuel also can directly be removed dust from exhausting air before through washing machine 20.In exhausting air pollutant reduction of the present invention system, preferably, the bigger dust of particulate matter is handled by washing machine 20 in the harmful components that contain for exhausting air, and the less fine solid particle of particulate matter is removed by dust removal device 40.
Said supervisory device 60 below summarily has been described, will have been specified the main structure and the effect of said supervisory device 60 below.Supervisory device 60 of the present invention comprises by analytical equipment 69 and supervisory control comuter 77.
Said analytical equipment 69 can be divided into exhausting air analytical equipment and discharge water analytical equipment.At first, the exhausting air analytical equipment optionally comprises: by the NOx analyzer 61 that is used for being determined at the NOx constituent concentration that exhausting air changes; Be used to measure the SOx analyzer 62 of SOx constituent concentration; Be used to measure dust analysis device 63 such as the dust of particulate matter etc.; Be used to measure CO, CO
2And O
2The COx/O of concentration
2Analyzer 64.
In addition, the discharge water analytical equipment optionally comprises: by the pH analyzer 65 that is used for measuring the hydrogen-ion concentration that changes from the polluted water of washing machine 20 dischargings; Be used to measure the turbidity analyzer 66 of the muddy degree of polluted water; Be used for the oil content parser 67 that indirect measurement comprises hydrocarbon type of concentration of unburned carbon.
In addition, said supervisory device also comprises in addition: make up the detection content of the said analyzer of having selected, and the supervisory control comuter 77 that generates control signal and exhaust and discharging are controlled, and through there being radio communication to link to each other with analyzer.Therefore, in conjunction with said each item content testing NOx, SOx, dust and CO, CO
2, O
2Exhausting air composition and pH, dirty degree, wet goods polluted water constituent concentration, control and adjusting discharge amount are finally carried out documenting and are handled.
That is, can form different systems as required according to supervisory device 60 of the present invention.That is to say that analytical equipment 69 can optionally comprise: from being used to measure the NOx analyzer 61 of NOx constituent concentration; Be used to measure the SOx analyzer 62 of SOx constituent concentration; Be used to measure the dust analysis device 63 of dust such as particulate matter; Be used to measure CO, CO
2And O
2The COx/O of concentration
2Analyzer 64.Do not adopt under the situation of reduction system owing to the problem of system applies aspect, should adopt NOx analyzer 61 and COx/O according to the suggestion of International Maritime mechanism basically
2Analyzer 64.If only be provided with washing machine 20, then can optionally adopt SOx analyzer 62 and dust analysis device as analytical equipment; If be provided with washing machine 20 and electrolytic module 75, then can adopt SOx analyzer 62 and COx/O
2Analyzer 64.And,, then adopt NOx analyzer 61 and COx/O if selective catalytic reduction device 50 only is installed
2Analyzer 64.Washing machine 20 among the present invention is to be used for desulfurization; Selective catalytic reduction device 50 is to be used for denitrogenation; Dust removal device 40 is to be used for removing dust or the contaminated microparticle thing that exhausting air contains; Brine electrolysis is the amount that is used to reduce carbon dioxide.
As previously mentioned, these detection time points can optionally carry out in first-Di as shown in Figure 5, four steps.Supervisory device 60 of the present invention is not only monitored exhausting air, also will monitor and monitor the polluted seawater that is used to purify this exhausting air.Certainly, as stated, also can optionally adopt the monitoring time point.If adopt boats and ships of the present invention that selective catalytic reduction device 50 and dust removal device 40 are not installed, then will directly detect and monitor exhausting air through washing machine 20; If catalytic reduction device 50 and dust removal device 40 are installed, then detect and monitor the exhausting air of discharging through this device.
Be installed on exhausting air if selective catalytic reduction device 50 of the present invention is not installed on the end of washing machine 20 with dust removal device 40 and get into washing machine 20 process position before, then detect and monitor in the rear end of washing machine 20.These all can be according to the system of installing and flexible conversion and selection are not key issue.
What the present invention was important a bit is also will detect and compare judgement to following dustiness: the initial dustiness of exhausting air; Purify the initial dustiness of remaining polluted water after this exhausting air; And these exhausting air and polluted water are respectively through the dustiness behind each washing machine 20 and catalytic reduction device 50 and dust removal device 40 and the polluted water water purifying plant 30.Its reason is, when aforementioned said exhausting air has the dustiness above the permitted value scope, should adopt recirculation and purification process again, and these processes are all done monitoring.Polluted water is like this equally, when its dustiness surpasses discharging permitted value scope, should be transferred to polluted water water purifying plant 30 again through other pipeline, carries out water purification process again.Certainly, this process also will all detect and monitor procedure again.
Said all processes with communicate through the special supervisory control comuter 77 that has wireless mode to be connected, the result is saved as electronic document, these electronic documents can be committed to relevant departments or be used.Simultaneously, the text can also reduce the data of system effectiveness as proof dustiness of the present invention.
To explain successively that below pollutant according to the present invention reduces the system monitoring method.
As shown in Figure 7, at first pass through first step, the steps A of promptly exhausting air of motor 10 dischargings being analyzed 110.
As carry out the part explanation through system, analyze initial ejection gas by engine emission.Detect dustiness successively through each analyzer.
These detections can realize through following second step once more, the steps A of promptly exhausting air of washing machine 20 dischargings being analyzed 120.In order to judge that whether the exhausting air of having accomplished purification through washing machine 20 is above allowing the dustiness scope to detect and monitor.
In addition, the seawater that is used for purification of exhaust gas is accomplished testing process through third step and the 4th step, the steps A of promptly polluted water of washing machine 20 dischargings being analyzed 130; And, to the steps A 140 of purifying waste water and analyzing of polluted water water purifying plant 30 dischargings.Like Fig. 7, under the continuous monitoring situation, each step is not to take place successively, but each step is carried out simultaneously and each step in the data measured preserve as monitor data.
The dustiness information that so detects is accomplished through the 5th step.That is, monitoring analysis content and control system are carried out documenting processed steps A150 with monitor procedure.
Important in said process a bit is though in the said system explanation, describe, can constitute different system according to different demands.That is, unwanted step can be omitted, and necessary step can increase to basic exhausting air pollutant and reduce system.As previously mentioned, break away under the situation of craft of strong control, when the exhausting air dustiness of discharging through washing machine 20 is less or system's installations needs to drop into more expense especially, can omit analytic process by the gas componant of engine emission.
But it is extremely important to judge whether the exhausting air dustiness that utilizes washing machine 20 to reduce dustiness surpasses the control scope, therefore should monitor this process at least.
Said content is equally applicable to the detection and the monitor procedure of said polluted water; Can only measure and monitor through washing machine 20 and flow into the polluted water dustiness of polluted water water purifying plant 30, also can measure the polluted water dustiness that passes through polluted water water purifying plant 30 of next step.The former is applicable to the spitkit that control intensity is more weak, and the latter is applicable to and can't the boats and ships that drop into too much expense be installed to system.Certainly, optimum scheme is to detect and monitor after all installing.
The most crucial item of said monitoring method is in said second step exhausting air of discharging from washing machine 20 to be analyzed, if in discharging the dustiness allowed band, then directly discharge this gas; If discharge to allow outside the dustiness scope, this gas of recirculation and reduce processing again then through washing machine 20.
As shown in Figure 8, the purification of exhaust gas of discharging through washing machine 20 is detected, in the time of in discharging the dustiness that allows, directly discharge this gas A122.Otherwise, discharging outside the permitted value (control scope) when being worth too small in the dustiness minimizing, then this gas is transferred to washing machine 20 and carries out recirculation and purify A121 again.At this moment, two kinds of situation differences.That is, said exhausting air is in the situation of passing through dust removal device 40 or selective catalytic reduction device 50 through washing machine 20 before; Situation through process dust removal device 40 or selective catalytic reduction device 50 after the washing machine 20.Under the said latter's the situation, be not through detecting behind the washing machine 20, but through detecting and judge whether recirculation behind dust removal device 40 or the selective catalytic reduction device 50.That is, system of the present invention exists multiple option that component parts is set, therefore can be whether according to the installation of option, change the time point that detects time point and monitoring, recirculation.
Use and above identical mode, in the present invention best, polluted water is analyzed, said polluted water is by forming in washing machine 20 employed sea states variations in the third step.When being in the permitted value scope, be disposed to marine; In the time of outside discharging permission dustiness scope, then should be transferred to polluted water water purifying plant 30 again.As shown in Figure 8, be not only foregoing discharge gas, purifying exhaust gas and the situation of the polluted water that produces is also carried out water purification through other polluted water water purifying plant 30, its water purification value does not reach the control value, then need take process recycling.Certainly, after the residue that generates through said polluted water water purifying plant 30 temporarily is saved in special residue groove 72, move to the treatment facility 73 back waste treatments on land again.
As previously mentioned, under the situation like Fig. 8, under the continuous monitoring situation, be not to produce successively for the control of exhausting air and discharge water, but form control simultaneously respectively exhausting air and discharge water.
That is to say, as shown in Figure 4, in the 4th step, will discharge through the polluted water that polluted water water purifying plant 30 purifies, but the residue of its generation temporarily is saved to residue groove 72, be transferred to residue treatment facility 73 after the end navigation and carry out waste treatment.What should be noted that a bit is, under the said situation of purifying waste water, when it has the draining possibility, as shown in Figure 8ly can separate and carries out draining.For the comparatively desirable seawater of purifying effect, judge and be transferred to washing machine 20 once more by supervisory device 60 to reuse, also can be disposed to the outside.That is, can be divided into two circuits under the situation of the seawater of completion purification.The former is the process of utilizing again, represent with the A142 step, and drainage procedure is represented with A141.In addition, the step that moves to the residue groove of Fig. 8 explanation is expressed as A143, and the management process of land residue treatment facility then is expressed as A144.And in other marks of Fig. 8, A110 representes that the step engine exhaust gas analyzed with analytical equipment, A130, A131, A132, A133 represent through the polluted water of washing machine 20 and the mobile step of purifying waste water.The equal illustrated in detail in specification of related description in steps.
Claims (10)
1. an exhausting air pollutant reduces system, is used to purify the exhausting air that is generated by the boats and ships line correlation monitoring of going forward side by side, and said system comprises:
The seawater cleaning of introducing through pump (71) is by the washing machine (20) of engine of boat and ship (10) to the exhausting air of supply line supply;
Purification is by the polluted water water purifying plant (30) of the polluted seawater of washing machine (20) discharging;
Collection is deposited in the residue groove (72) of residue in the polluted water water purifying plant (30); And,
To the state of changing of said motor (10) exhausting air and the supervisory device of monitoring by the polluted water state of changing that polluted water water purifying plant (30) purifies (60).
2. exhausting air pollutant according to claim 1 reduces system, also comprises:
When washing machine (20) is supplied seawater, the seawater of being supplied is passed through independently electrolytic module (75) supply brine electrolysis through pump (71),, dual intake channel is set in order to improve the contacting efficiency of brine electrolysis and exhausting air.
3. exhausting air pollutant according to claim 1 reduces system, it is characterized in that, and the dustiness of said supervisory device (60) monitoring exhausting air and discharge water and control discharging, said supervisory device is installed in selectively:
Exhausting air is supplied to the supply tube of washing machine (20);
The exhausting air that purifies is disposed to outside outlet pipe from washing machine (20);
The seawater that pollutes is disposed to the supply tube of polluted water water purifying plant (30) at washing machine (20);
From the discharge pipe of polluted water water purifying plant (30) to outside emission purification water.
4. exhausting air pollutant according to claim 1 reduces system, also comprises selective catalytic reduction device (50), and through the catalysis device reduction nitrogen oxide of waveform, said catalytic reduction device comprises:
Heat exchanger; The supply tube that exhausting air is supplied to washing machine (20) maybe with the exhausting air that purifies from washing machine (20) to the outlet pipe of outside drain, be untreated before and carry out heat exchange between exhausting air and the processing exhausting air flowing into washing machine (20) through washing machine (20); And,
Air discharge heating apparatus (76).
5. reduce system according to claim 1 or 4 described exhausting air pollutants, also comprise:
Be used to remove the dust removal device (40) of fine dust, it is arranged in said supply tube or the said outlet pipe, and said supply tube is supplied to washing machine (20) with exhausting air, said outlet pipe with the exhausting air that purifies by washing machine (20) to outside drain.
6. reduce system according to claim 1 or 3 described exhausting air pollutants, wherein, said supervisory device (60) is used to measure NOx, SOx, dust and CO, CO
2, O
2The concentration of exhausting air composition and pH, dirty degree, wet goods polluted water composition, and then control and adjusting discharge amount, and it is carried out documenting handle, said supervisory device comprises:
Exhaust gas analyzer optionally comprises, is used for being determined at the NOx analyzer (61) of the NOx constituent concentration that exhausting air changes; Be used to measure the SOx analyzer (62) of SOx constituent concentration; Be used to measure dust analysis device (63) such as the dust of particulate matter; Be used to measure CO, CO
2And O
2The COx/O of concentration
2Analyzer (64);
Comprise the analytical equipment (69) of discharge water analytical equipment, optionally comprise, be used for measuring the pH analyzer (65) of the hydrogen-ion concentration that changes from the polluted water of washing machine (20) discharging; Be used to measure the turbidity analyzer (66) of the muddy degree of polluted water; Be used for the oil content parser (67) that indirect measurement comprises hydrocarbon type of concentration of unburned carbon;
Monitoring computer (77) is used for from the said analyzer of having selected the content that is detected being made up and produce control signal, and then control exhaust and discharging.
7. an exhausting air pollutant reduces the monitoring method of system, comprising:
First step is to analyzing (A110) from the exhausting air of motor (10) discharging;
Second step is to analyzing (A120) from the exhausting air of washing machine (20) discharging;
Third step is to analyzing (A130) from the polluted water of washing machine (20) discharging;
The 4th step is to analyzing (A140) from purifying waste water of polluted water water purifying plant (30) discharging;
The 5th step, monitoring analysis content and control system are carried out documenting with monitor procedure and are handled (A150).
8. monitoring method according to claim 7, wherein,
In second step, analyze from the exhaust of washing machine (20) discharging, do not allow the dustiness scope if exceed to discharge, then discharge said exhaust; If discharging outside the permission dustiness scope, the said exhaust that then circulates again also reduces processing through washing machine (20) again.
9. monitoring method according to claim 7, wherein:
In third step, for the employed seawater of washing machine (20), if after the polluted water of change of state analyzed; Be in to discharge and allow within the dustiness scope; Then be disposed to marinely, discharge allow then it to be moved into the polluted water purification plant again beyond the dustiness scope if be in.
10. according to claim 7 or 9 described monitoring method, wherein,
In the 4th step, discharge the purifying sea water that purifies from polluted water water purifying plant (30), and its residue is saved to residue groove (72).
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| KR1020100068333A KR101303289B1 (en) | 2010-07-15 | 2010-07-15 | Reduction system of exhaust gas pollution and its monitoring method |
| KR10-2010-0068333 | 2010-07-15 |
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| CN2010102518996A Pending CN102337948A (en) | 2010-07-15 | 2010-08-12 | Reduction system of exhaust gas pollution and its monitoring method |
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| KR101303289B1 (en) | 2013-09-03 |
| KR20120007683A (en) | 2012-01-25 |
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