CN104645797B - Device and technology for treating exhaust gas of tank ship and preparing inert gas from exhaust gas - Google Patents
Device and technology for treating exhaust gas of tank ship and preparing inert gas from exhaust gas Download PDFInfo
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- CN104645797B CN104645797B CN201510051553.4A CN201510051553A CN104645797B CN 104645797 B CN104645797 B CN 104645797B CN 201510051553 A CN201510051553 A CN 201510051553A CN 104645797 B CN104645797 B CN 104645797B
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Abstract
The invention relates to a device for treating an exhaust gas of a tank ship and preparing an inert gas from the exhaust gas. The device comprises a pipeline combustor, a catalytic conversion device, a cooler and a CO2 washing tower, which are sequentially connected with one another through a pipeline to form an exhaust gas treatment device, wherein the cooler is also connected with an O2 washing tower, a dryer, a copper net deaerating device and an inert gas storage cabinet to form a device for preparing the inert gas from the exhaust gas. The invention further relates to a technology for treating the exhaust gas of the tank ship and preparing the inert gas from the exhaust gas. Compared with the prior art, the device and the technology have the advantages that the exhaust gas treatment device is combined with the device for preparing the inert gas from the exhaust gas through the pipeline combustor, the catalytic conversion device and the cooler; the discharged gas can be relatively clean by the CO2 washing tower and the O2 washing tower in the exhaust gas treatment device; meanwhile, the exhaust gas of the ship can be effectively treated by the device for preparing the inert gas from the exhaust gas; the components in the exhaust gas reach the requirements of the inert protective gas in an oil tank; and the treatment cost of the exhaust gas is greatly reduced.
Description
Technical field
The invention belongs to oil carrier waste gas pollution control and treatment technical field, more particularly, to a kind of inerting disposal to waste gas in oil carrier and ship
The device of oceangoing ship exhaust-gas treatment and technique.
Background technology
At present, the generating meanss of inert protective gas produced by existing oil carrier flue gas formula, stand alone type, multi-functional formula etc.,
Every kind of inert protective gas generating meanss have the construction featuress of its own and certain scope of application.Flue gas formula inert protective gas
Generating meanss are although its economic performance very well, but only using boiler waste gas as carrying out material source, and can not enter to the pollutant in waste gas
Row is processed, therefore waste gas does not reach the emission request in International Maritime Organization (IMO) MARPOL73/78 Convention amendment；Stand alone type
Inert protective gas generating meanss, this device advantage is the purity that can control inert protective gas, but initial investment is big, consumes
Fuel oil, nor the pollutant in waste gas are processed；Multi-functional formula inert protective gas generating meanss, on this device is
The coalition of the two kinds of devices in face, due to the reason such as initial investment is big, maintenance cost is high, fuel consumption amount is big, on present ship
Through rarely found.
In spot ship, common emission-control equipment is desulfurizer, such as wet scrubbing tower technology, mainly passes through in list
In loop using improve washing alkali liquid pH value, increase circulating pump quantity and using the methods such as chemical addition agent to improve desulfurization effect
Rate.In the alkali liquor of single loop wet scrubbing technique, the alkali liquor pH value remaining higher requires supplementation with a large amount of absorbent, and high ph-values are not
Beneficial to the oxidation of final product sulfite ion, also it is unfavorable for reducing chemical oxygen consumption (COC) (COD)；The increase of circulating pump quantity can become
Increase power consumption and operating cost again；And when adopting chemical addition agent, the Strong oxdiative device in alkali liquor pond can make additive
Chemical degradation speed accelerate, thus causing the increase of additive usage amount.As Patent No. ZL201110039565.7 is (public
Accuse number be CN102120138A) Chinese invention patent《Magnesio-seawater method desulfurization system for ship》Reach in conjunction with magnesium processes and seawater method
Arrive efficient desulfurization target for a long time, but in the design of this system pipeline, frequency conversion pipeline pump and sea water pump place pipeline are all using one
Individual pump controls the method for designing of two pipelines, and spray pump is arranged on the branch road of spray pipeline again.Therefore, to reach and efficiently take off
Sulfur target, needs accurate flow-control, increases flow-control difficulty.And, the spray mode of single loop multi-stage spray increases
The spray flux of serosity and the loss power of circulating pump are added.As another Patent No. ZL201110210002.X, (notification number is
CN102247741A) Chinese invention patent《A kind of flue gas desulfurization technique》Washing of multi-stage spray is employed in reverse-flow scrubbing tower
Wash mode, decrease the granule foreign in cleaning mixture, improve exhuast gas desulfurization efficiency.
It is primarily directed to the desulfurization process device in waste gas thereon, due to not only including sulfide SO in waste gasX, also wrap
Containing NOX、COXEtc. harmful components, but it is specific to marine exhaust Integrated Processing Unit and does not also popularize at present, only minority ship
Equipped with portion processing meanss, such as Patent No. ZL02122225 (notification number is CN1462644A), invention entitled《Useless
Flash Gas Compression Skid System and exhaust treatment system》, the 1st emission-control equipment in the rear end of multicyclone device, is revolved by it by multitube
Fine solid particle in waste gas is removed by wind device, is configuring the back segment in multicyclone device through the 2nd emission-control equipment, by many
Fine solid particle in waste gas is removed by tubular type cyclone, after purifying through the 2nd emission-control equipment, by the 2nd waste gas again
2nd exhaust emission tube of processing meanss is discharged in air.It is little that its deficiency is still exhaust-gas treatment amount, exhaust-gas treatment high cost,
And different types of emission-control equipment must also be set to processing different noble gases, so that shipping transport cost is greatly improved.For
This, need to develop a nested structure simple and can all oil carrier cargo tanks be carried out with inerting disposal and marine exhaust post processing simultaneously
Device and process.
Content of the invention
A technical problem to be solved by this invention be provide for above-mentioned state of the art a kind of structure simple,
And oil carrier exhaust-gas treatment can be effectively improved and using the lazy device of waste gas system.
Another technical problem to be solved by this invention is to provide one kind effective for above-mentioned state of the art
Improve oil carrier exhaust-gas treatment and carry out making lazy technique using waste gas.
The present invention solves the technical scheme that adopted of above-mentioned technical problem：This oil carrier exhaust-gas treatment and using waste gas system lazy
Device, include the pipeline burner being connected with exhaust gas entrance, the waste gas discharged from described pipeline burner selected
Property catalysis reduction catalytic convention design, the cooler that cooled down of waste gas discharged from described catalytic convention design, pipe
Road burner, catalytic convention design, cooler be connected in turn by pipeline it is characterised in that：Described cooler outlet is even
Connect two branches, wherein, a branch connects the CO removing the oxysulfide containing in waste gas and oxycarbide2Scrubbing tower,
Constitute emission-control equipment；Another branch is sequentially connected O2Scrubbing tower, exsiccator, copper mesh deaerating plant and noble gas storage
Cabinet, constitutes the lazy device of waste gas system.
Further, described CO2The outlet of scrubbing tower is connected with two paths, and first is to be connected with scrubbing tower outlet
And direct path that acceptable exhaust is discharged, Article 2 is and CO2That the import of scrubbing tower is connected and again recovery processing do not conform to
The path of lattice exhaust-gas treatment, described CO2The outlet of scrubbing tower is connected with CO2Concentration detector, on the path of first waste gas discharge
Being connected with the 4th electromagnetism normally closed type bi-bit bi-pass reversal valve is that the 4th single electricity is normally closed and Article 2 again reclaims and processes unqualified giving up
Being connected with the 7th electromagnetism bi-bit bi-pass reversal valve open in usual on the path of gas disposal is the 7th normally opened, the described CO of single electricity2Concentration is examined
The control signal that the output signal of telecommunication is normally closed with the 4th single electricity and the 7th single electricity is normally opened surveying device is connected for real-time detection analysis
CO in waste gas2Concentration and the control path of first waste gas discharge, Article 2 reclaim the unqualified exhaust-gas treatment of processing again
Path open close；The outlet of described copper mesh deaerating plant is connected with two paths, and first is and the entering of described noble gas cabinet
The connected process path directly storing acceptable exhaust of mouth, Article 2 is to be connected with the import of copper mesh deaerating plant and again reclaim
Process the process path of unqualified waste gas, the outlet of described copper mesh deaerating plant is connected with oxygen concentration sensor, at first
Being connected with the 3rd electromagnetism normally closed type bi-bit bi-pass reversal valve on reason path is that the 3rd single electricity is normally closed and Article 2 reclaims processing again
Being connected with the 5th electromagnetism bi-bit bi-pass reversal valve open in usual on the process path of unqualified waste gas is the 5th normally opened, the described oxygen of single electricity
The control signal that the output signal of telecommunication of gas concentration sensor is normally closed with the 3rd single electricity and the 5th single electricity is normally opened is connected for real-time
O in detection and analysis waste gas2It is unqualified that concentration and the process path controlling first waste gas to store, Article 2 reclaim processing again
The break-make of the process path of waste gas.
Further, it is provided with exhaust gas turbine between described catalytic convention design and cooler.Using in waste gas
Level pressure can promote turbine rotation, and the pressure transducer using setting by exhaust gas turbine with pulse, further to prevent
Only turbine damages or pipeline blockage.
Further, described copper mesh deaerating plant is designed to cloth inlet shape for air inlet, so that waste gas can be rapidly
Full of whole copper mesh deaerating plant, to increase redox speed and effect.And the specification limit of copper mesh is preferable over 15 mesh/English
Between very little～25 mesh/inch, if the hole of copper mesh is excessive, redox effect is undesirable, if the hole of copper mesh is too small, also same
Sample is unfavorable for oxidoreduction.
Further, the exhaust gas entrance of described cooler is designed to cloth inlet shape.So that waste gas can rapidly be full of
The cooling space of whole cooler, to increase speed and the effect of cooling.
Further, described cooler napex is equipped with direct acting type air relief valve.When washing tower pressure interior force rises to limit value,
Direct acting type air relief valve automatically opens up and sends audible and visible alarm, and waste gas is entered air, until washing tower pressure interior force drops to restriction
When value is following, all clear, direct acting type air relief valve cuts out.
Further, described CO2Scrubbing tower and O2Tower interior circulation water tank and chemicals dosing plant is all included in scrubbing tower, described
It is provided with level sensor and the acid-base value monitoring sensor for monitoring recirculated water acid-base value, described dosing dress in cyclic water tank
Put and include drug tube, described level sensor connects water pump to described cyclic water tank by acting on manually-electromagnetic type pump valve
Supply water, described acid-base value monitors Sensor monitoring recirculated water acid-base value and automatism is in single-acting electromagnetism normally closed type bi-bit bi-pass
Reversal valve, makes described drug tube dispensing, wherein, the dispensing mouth of drug tube is designed as reducing pipe shower nozzle.
Further, the outlet of described exsiccator is connected with two paths, and first is to enter with described copper mesh deaerating plant
Path that mouth is connected and that waste gas qualified for humidity is directly made further catalyzed conversion, Article 2 is the import phase with exsiccator
The process path even and by underproof for humidity waste gas again drain processed, the outlet of described exsiccator is connected with air humidity and passes
Sensor, it is that second single electricity is normal that the path of first exhaust fume catalytic conversion is connected with the second electromagnetism normally closed type bi-bit bi-pass reversal valve
Close, it is the 4th that the Article 2 waste gas process path that drain is processed again is connected with the 4th electromagnetism bi-bit bi-pass reversal valve open in usual
Single electricity is normally opened, and the output signal of telecommunication of described air humidity sensor is normally closed with second single electricity and the electric normally opened control signal of the 4th list
It is connected and analyze the moisture in waste gas for real-time detection and control the path of first exhaust fume catalytic conversion, Article 2 to give up
The break-make of the gas process path that drain is processed again.
The present invention also provides a kind of oil carrier exhaust-gas treatment and using the lazy technique of waste gas system it is characterised in that including following walking
Suddenly：
A, marine exhaust are burnt further through pipeline burner, so that EGT is raised, enter described catalyzed conversion
, there is chemical reaction in device；
B, through described cooler cooling, EGT decline, respectively enter different scrubbing towers in two kinds of situation；
C, when not producing noble gas, enter described CO2There is chemical reaction, CO in scrubbing tower2Scrubbing tower outlet is provided with CO2Dense
Degree sensor, works as CO2When concentration reaches below setting, enter air, work as CO2When concentration is more than setting, CO is returned in drain2
Washing tower inlet；
D, when producing noble gas, enter described O2There is chemical reaction in scrubbing tower, then be dried in described exsiccator,
Through the detection of described air humidity sensor, if unqualified waste gas is dried, again drain into described exsiccator entrance, and qualified useless
Gas enters described copper mesh deaerating plant and redox reaction occurs to remove oxygen；
E, the waste gas to step d make further deoxygenation, the oxygen concentration of the outlet setting through described copper mesh deaerating plant
Biosensor analysis oxygen concentration, if unqualified noble gas is back in described copper mesh deaerating plant again, and the entrance of qualified noble gas is lazy
Gas cabinet is laid in.
Compared with prior art, it is an advantage of the current invention that：By pipeline burner, catalytic convention design, cooler will
Emission-control equipment and the lazy device of waste gas system combine, and CO in emission-control equipment2And O2Scrubbing tower can make expellant gas
Cleaner, reduce rear class process step, reduce waste gas purification cost it is contemplated that can be by the SO in waste gasX、NOX、COXEtc. having
Evil composition reduces more than 80%, and the lazy device of waste gas system can be processed to marine exhaust effectively simultaneously, makes the composition in waste gas
Reach cargo tank inert protective gas to require, there is the utilization rate strengthening marine exhaust energy, so that exhaust-gas treatment cost is significantly subtracted
Few advantage, the present invention integrates energy-saving and environmental protection, makes lazy, exhaust-gas treatment, can be in conditions such as oil carrier limited resources, spaces
Under, improve safety coefficient, capability of environmental protection and the operation of ship economy of oil carrier, reduce tankerman to inert protective gas simultaneously
Generating meanss and the maintenance and management of marine exhaust processing equipment, reduce workload and the maintenance cost of crewman.
Brief description
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the CO of the present invention2Scrubbing tower and O2Structural representation within scrubbing tower；
Fig. 3 is the CO of the present invention2Scrubbing tower and O2The structural representation of the dispensing mouth of the internal drug tube of scrubbing tower；
Fig. 4 be the present invention cooler be in cloth air port shape exhaust gas entrance structural representation.
Specific embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in figures 1-4, this oil carrier exhaust-gas treatment and being included using the lazy device of waste gas system is connected with exhaust gas entrance
Pipeline burner 2, the waste gas discharged from pipeline burner 2 is carried out SCR catalytic convention design 11, from
The cooler 63 that the waste gas discharged in catalytic convention design 11 is cooled down, pipeline burner 2, catalytic convention design 11, cooling
Device 63 is connected in turn by pipeline, and cooler 63 outlet connects two branches, and wherein, a branch connects and will contain in waste gas
Some oxysulfides and the CO of oxycarbide removing2Scrubbing tower 19, constitutes emission-control equipment, CO2The outlet setting of scrubbing tower 19
There is Analysis for CO2The CO of concentration2Concentration detector, if CO2Concentration detector detects CO2Concentration over-standard then returns to CO2Scrubbing tower
Reprocessed, and acceptable exhaust can directly be discharged；Another branch is sequentially connected O2Scrubbing tower 62, exsiccator 28, copper mesh remove
Oxygen device 34 and noble gas cabinet 38, constitute the lazy device of waste gas system.
Wherein, CO2The outlet of scrubbing tower 19 is connected with two paths, and first is to be connected and direct with scrubbing tower outlet
The path that acceptable exhaust is discharged, Article 2 is and CO2That the import of scrubbing tower 19 is connected and again reclaim that processing is unqualified to give up
The path of gas disposal, CO2The outlet of scrubbing tower 19 is connected with CO2Concentration detector 66, the path of first waste gas discharge connects
Have that the 4th electromagnetism normally closed type bi-bit bi-pass reversal valve is the 4th single electricity normally closed 64 and Article 2 reclaims the unqualified waste gas of processing again
Being connected with the 7th electromagnetism bi-bit bi-pass reversal valve open in usual on the path processing is the 7th single electricity normally opened 65, CO2Concentration detector
The 66 output signal of telecommunication is connected with the control signal of the 4th single electricity normally closed 64 and the 7th single electricity normally opened 65 and divides for real-time detection
CO in analysis waste gas2Concentration and the control path of first waste gas discharge, Article 2 reclaim the unqualified exhaust-gas treatment of processing again
Path open close.
In order to waste gas can be provided with pulse energy between catalytic convention design 11 and cooler 63 using the level pressure in waste gas
Charging turbine 9, and the pressure transducer using the other setting of exhaust gas turbine 9, further to prevent turbine from damaging or pipeline
Blocking.Additionally, for enabling waste gas to be rapidly full of the cooling space of whole cooler 63, the exhaust gas entrance design of cooler 63
Become cloth air port 14 shape, and cooler 63 napex is equipped with direct acting type air relief valve 13, when in cooler 63, pressure rises to limit value
When, direct acting type air relief valve 13 is opened and is sent audible and visible alarm, and waste gas is entered air, until pressure drops to limit in cooler 63
When below definite value, all clear, direct acting pressure valve 13 cuts out.
In order to be able to make expellant gas cleaner, reduce rear class process step, reduce the purification cost of waste gas, CO2Wash
Wash tower 19 and O2Tower interior circulation water tank and chemicals dosing plant is all included in scrubbing tower 62.It is provided with level sensor in cyclic water tank
Monitor sensor with the acid-base value for monitoring recirculated water acid-base value, chemicals dosing plant includes drug tube.Level sensor passes through
Act on manually-electromagnetic type pump valve and connect water pump to cyclic water tank water supply, acid-base value monitors Sensor monitoring recirculated water acid-base value
And automatism is in single-acting electromagnetism normally closed type bi-bit bi-pass reversal valve, drug tube is made to offer medicine.Wherein, the dispensing mouth of drug tube sets
It is calculated as reducing pipe shower nozzle, and the outlet of exsiccator 28 is connected with two paths, first is and copper mesh deaerating plant 34 import phase
The path that waste gas qualified for humidity is simultaneously directly made further catalyzed conversion even, Article 2 is to be connected with the import of exsiccator 28
And the process path by the processing of underproof for humidity waste gas again drain, the outlet of exsiccator 28 is connected with air humidity sensor
30, it is that second single electricity is normally closed that the path of first exhaust fume catalytic conversion is connected with the second electromagnetism normally closed type bi-bit bi-pass reversal valve
47, it is the 4th that the Article 2 waste gas process path that drain is processed again is connected with the 4th electromagnetism bi-bit bi-pass reversal valve open in usual
Single electricity normally opened 46, the control of the output signal of telecommunication of air humidity sensor 30 and second single electricity normally closed 47 and the 4th single electricity normally opened 46
Signal be connected for real-time detection analyze the moisture in waste gas and control the path of first exhaust fume catalytic conversion, second
The break-make of the bar waste gas process path that drain is processed again.And the outlet of copper mesh deaerating plant 34 be provided with dense for analyzing oxygen
The oxygen concentration sensor 35 of degree.Wherein, the outlet of copper mesh deaerating plant 34 is connected with two paths, and first is to deposit with noble gas
The connected process path directly storing acceptable exhaust of the import of container 38, Article 2 is the import phase with copper mesh deaerating plant 34
Even and again reclaim the process path processing unqualified waste gas, the outlet of copper mesh deaerating plant 34 is connected with oxygen concentration sensor
35, it is the 3rd single electricity normally closed 48 and Article 2 that first article of process path is connected with the 3rd electromagnetism normally closed type bi-bit bi-pass reversal valve
Again reclaiming and being connected with the 5th electromagnetism bi-bit bi-pass reversal valve open in usual on the process path process unqualified waste gas is the 5th list
Electricity normally opened 49, the control letter of the output signal of telecommunication of oxygen concentration sensor 35 and the 3rd single electricity normally closed 48 and the 5th single electricity normally opened 49
Number be connected for real-time detection analyze waste gas in O2The process path of concentration and first waste gas storage of control, Article 2 weight
The new break-make reclaiming the process path processing unqualified waste gas.
The present invention also provides a kind of oil carrier exhaust-gas treatment and using the lazy technique of waste gas system, comprises the steps：
A, marine exhaust are burnt further through pipeline burner 2, make EGT reach rising, enter catalyzed conversion
, there is chemical reaction in device 11；
B, cool down through subcooler 63, EGT declines, and respectively enters different scrubbing towers in two kinds of situation；
C, when not producing noble gas, enter CO2There is chemical reaction, CO in scrubbing tower 192Scrubbing tower outlet is provided with CO2Concentration
Sensor, works as CO2When concentration reaches below setting, enter air, work as CO2When concentration is more than setting, CO is returned in drain2Wash
Wash tower entrance；
D, when producing noble gas, enter described O2There is chemical reaction in scrubbing tower 62, be dried in drying device 28,
Detect through air humidity sensor 30, if unqualified waste gas is dried, again drains into exsiccator 28 entrance, and acceptable exhaust enters
Enter copper mesh deaerating plant 34 and redox reaction occurs to remove oxygen；
E, the waste gas to step d make further deoxygenation, and the oxygen concentration of the outlet setting through copper mesh deaerating plant 34 passes
Sensor 35 analyzes oxygen concentration, if unqualified noble gas is back in copper mesh deaerating plant 34 again, and qualified noble gas enters noble gas
Cabinet 38 is laid in.
When ship starts to discharge waste gas, waste gas enters device by entrance 1 and is burnt further through pipeline burner 2, makes
EGT raises, and enters catalytic convention design 11, issues biochemical reaction 4NO+4NH at 300～400 DEG C3+O2=4N2+
6H2O；6NO2+8NH3=7N2+12H2O.Subsequently enter exhaust gas turbine 9, can be able to be promoted with level pressure using the pulse in waste gas
Turbine rotation, then cool down through subcooler 63, so that EGT is declined, act on through the first blower fan 17 and the second blower fan 70, point
Different situations respectively enter different scrubbing towers：
When not producing noble gas, waste gas enters CO2Scrubbing tower 19, by the effect of the first pumping 27 and high-speed rotation shower nozzle 50,
Medicine is made to be fully contacted in implant 20 with waste gas, concurrently biochemical reaction 2NaOH+CO2=Na2CO3+H2O；Na2CO3
+CO2+H2O=2NaHCO3；2NaOH+SO2=Na2SO3+H2O；Na2SO3+H2O+SO2=2NaHSO3Afterwards, waste gas is by first exhaust
Mouth 23 enters air.
When producing noble gas, waste gas enters O2Scrubbing tower 62, by the effect of the second pumping 75 and high-speed rotation shower nozzle 50, makes medicine
Product are fully contacted in implant 77 with waste gas, concurrently biochemical reaction 12FeSO4+6H2O+3O2=4Fe2(SO4)3+4Fe
(OH)3；Fe2(SO4)3+SO2+2H2O=2FeSO4+2H2SO4；2SO2+O2+2H2O=2H2SO4.Waste gas, through exsiccator 28, removes
Moisture.Proceed immediately to copper mesh deaerating plant 34, under scorching hot copper mesh, redox reaction 2Cu+O occurs2=2CuO, enters
One step removes oxygen.Finally enter noble gas cabinet 38, when cargo tank needs inerting, cargo tank is entered by second exhaust port 41.
In view of the various factors in actual management, the system is made with following improvement.
As shown in figure 1, waste gas enters pipeline burner 2 by exhaust gas entrance 1 burning, temperature raises, and filters out through drainage screen 3
A part of microgranule, enters catalytic convention design 11, and chemical reaction occurs.Temperature sensor 6 in catalytic convention design 11 is real-time
Transmission temperature, when temperature is less than 300 DEG C or is higher than 400 DEG C, sends audible and visible alarm, and sends the signal of telecommunication, act on single-acting
Electromagnetism normally closed type bi-bit bi-pass reversal valve 7 (hereinafter referred to as single electricity is normally closed) and single-acting electromagnetism bi-bit bi-pass open in usual reversal valve 39
(hereinafter referred to as single electricity is normally opened).Waste gas is exported drain from catalytic convention design 11 and backs into mouth, until temperature reaches 300～400
DEG C or manual cancellation, all clear, single-acting electromagnetism normally closed type bi-bit bi-pass reversal valve 7 and two two open in usual of single-acting electromagnetism
Logical reversal valve 39 resets.
And then waste gas enters exhaust gas turbine 9, can promote turbine rotation with pulse using the level pressure in waste gas.Useless
Equipped with first pressure sensor 8 by gas charging turbine 9, prevent turbine from damaging or pipeline blockage.When pipeline inner pressure reaches restriction
During value, send audible and visible alarm and first single electricity normally opened 61 is opened, until pipeline inner pressure drops to below limit value or people simultaneously
Work is cancelled, all clear, and first single electricity normally opened 61 resets.When waste gas from exhaust gas turbine 9 out, enter cooler 63,
In the presence of cooling water coil 10, EGT reduces.In order that waste gas is rapidly filled with entirely cooling down space, cooler waste gas enters
Mouth spy is designed to cloth air port 14 shape, as shown in Figure 4.It is possible to block or enter the exhaust gas flow of cooler 63 in view of pipeline
Excess, causes pressure in cooler 63 drastically to raise, and cooler 63 top is equipped with direct acting type air relief valve 13 (making relief valve use).
When the pressure in cooler 63 reaches the limit value of direct acting type air relief valve 13, send audible and visible alarm direct acting type air relief valve 13 simultaneously
Open, waste gas is entered air, until pressure drops to below limit value or manual cancellation in cooler 63, all clear, directly
Ejector half air relief valve 13 resets.
Gas flow sensor 83 moment monitors exhaust gas flow, and controls second single electricity normally opened 84.Now, waste gas divides three kinds
Situation enters scrubbing tower.
When exhaust gas flow is within system process range：
(1) second pressure sensor 37 on noble gas cabinet 38 control normally closed 44, the 3rd single electricity of the first single electricity normally opened 45,
First manual-electromagnetic type pump valve 26 and the keying of second manual-electromagnetic type pump valve 74.When the pressure of noble gas cabinet 38 is higher than limit
During definite value, send the signal of telecommunication, by first the single electric normally closed 44, the 3rd single electric normally opened 45 and second manual-electromagnetic type pump valve 74 simultaneously
Close, first manual-electromagnetic type pump valve 26 is opened.Water circulating pump 27 is started working, and water chemical solution is pumped to rotation at a high speed
Turn shower nozzle 50 (see Fig. 2).Water circulating pump 27 sets two, a preparation and a use.Waste gas, in the presence of the first blower fan 17, rapidly enters
CO2Scrubbing tower 19, is fully contacted with aqueous chemical solution in implant 20 and reacts, and scrubbing tower outlet 23 is provided with CO2Concentration Testing
Device 66, the CO in real-time detection waste gas2Concentration, and act on the 4th single electricity normally closed 64 and the 7th single electricity normally opened 65.Work as CO2Concentration
When reaching below setting, enter air；Work as CO2When concentration is more than setting, CO is returned in drain2Scrubbing tower 19 entrance.Tower top sets
There are first pressure sensor 22 and direct acting type air relief valve 13.When tower pressure interior force rises to limit value, direct acting type air relief valve 13 dozens
Open and send audible and visible alarm, waste gas enters air, until tower pressure interior force drops to below limit value, all clear, direct acting type subtracts
Pressure valve 13 resets.
(2) when the pressure of noble gas cabinet 38 is less than limit value or needs to carry out inerting to cargo tank, send the signal of telecommunication, will
First single electricity the normally closed 44, the 3rd single electric normally opened 45 and second manual-electromagnetic type pump valve 74 are opened simultaneously, first manual-electromagnetic type
Pump valve 26 cuts out.Water circulating pump 75 is started working, and water chemical solution is pumped to high-speed rotation shower nozzle 50 (see Fig. 3).Circulation
Water pump 75 sets two, a preparation and a use.Waste gas, in the presence of the second blower fan 70, rapidly enters O2Scrubbing tower 62, in implant 77
In fully contact with aqueous chemical solution and react.Tower top is provided with the 3rd pressure transducer 79 and the 3rd direct acting type air relief valve 69.When
When tower pressure interior force rises to limit value, audible and visible alarm is opened and sent to the 3rd direct acting type air relief valve 69, and waste gas enters air, until
Tower pressure interior force drops to below limit value, all clear, and the 3rd direct acting type air relief valve 69 resets.
As depicted in figs. 1 and 2, tower interior circulation water tank is equipped with level sensor 55, limiting water level level sensor 52 and acid
Basicity monitors sensor 25, and level sensor 55 is by acting on first manual-electromagnetic type pump valve 16 or second manual-electromagnetic type
Pump valve 71, connects the first make-up pump 18 or the second make-up pump 72 supplies water into case, and the first make-up pump 18 and second feeds
Water pump 72 all sets two, the using and the reserved.Acid-base value monitors the acid-base value that recirculated water monitored by sensor 25, and automatism is in the 4th
Single electricity normally closed 64, makes drug tube 56 offer medicine, the dispensing mouth of drug tube 56 is designed as reducing pipe shower nozzle 51, (as shown in Figure 3).If from
Dynamic administration system damages, then act on the bi-bit bi-pass reversal valve (hereinafter referred to as electric hand is normally opened) 59 open in usual of electromagnetism-manually, by the
One outer dispensing mouth 24 or the second outer dispensing mouth 78 are offerd medicine, also can be by manually being offerd medicine.Cyclic water tank bottom is provided with first
Electric hand normally opened 21 and the second electric hand normally opened 73, by limiting water level sensor 52 or artificial control, make blowoff valve and use.
2nd, when exhaust gas flow is beyond system process range：
When gas flow sensor 83 monitors that exhaust gas flow is beyond system process range, send the signal of telecommunication, by
Two single electricity normally opened 84 are closed.Waste gas then crosses the 3rd single electricity normally opened 45, is directly entered CO2Scrubbing tower 19.Additionally, gas flow passes
Sensor 83 does not affect the control of second pressure sensor 37 electric normally closed 44, threeth single electricity normally opened 45 single to first, that is, when noble gas is deposited
When the pressure of container 38 is higher than limit value, waste gas enters CO as usual2Scrubbing tower 19；Limit when the pressure of noble gas cabinet 38 is less than
Value or when needing to carry out inerting to cargo tank, waste gas enters O as usual2Scrubbing tower 62.Exsiccator 28 is responsible for waste gas is dried, and does
Dry device filter screen 80 filters a part of microgranule, in the presence of implant 29, absorbs the moisture in waste gas.Exsiccator 28 outlet is provided with
Gas humidity sensor 30, detects to the humidity in outlet exhaust, and often controls second single electricity normally closed 47 and the 4th single electricity
Open 46 keying.When gas humidity reaches more than limit value, waste gas again drain is returned exsiccator 28 entrance；Work as gas humidity
Reach limit value and following when, waste gas enter copper mesh deaerating plant 34.
In the presence of the scorching hot copper mesh 32 that is energized, the oxygen in waste gas is removed further, weakened.Copper mesh deaerating plant 34
Top is equiped with the 4th direct acting type air relief valve 82, when tower pressure interior force rises to limit value, sends audible and visible alarm direct acting type simultaneously
Air relief valve 13 is opened, and waste gas enters air.Device outlet setting oxygen concentration sensor 35, analyzes oxygen concentration, and controls the
Three single electricity normally closed 48 and the keying of the 5th single electricity normally opened 49.Unqualified waste gas again leads back and flows to copper mesh deaerating plant 34, qualified
Waste gas now can be referred to as inert protective gas, abbreviation noble gas.Noble gas enters in noble gas cabinet 38, on noble gas cabinet 38
Second pressure sensor 37 control that normally closed 44, the 3rd single electricity of the first single electricity is normally opened 45, first manual-electromagnetic type pump valve 26 and the
The keying of two manual-electromagnetic type pump valves 74.When cargo tank needs inerting, open manual type stop valve 40, entered by air vent 41
Cargo tank, and by all of sensor in computer collection control 43 centralized control system.
Claims (9)
1. a kind of oil carrier exhaust-gas treatment and using the lazy device of waste gas system, includes the pipeline burner being connected with exhaust gas entrance
(2), by the waste gas discharged from described pipeline burner (2) carry out SCR catalytic convention design (11), from
The cooler (63) that the waste gas discharged in described catalytic convention design (11) is cooled down, pipeline burner (2), catalyzed conversion dress
Put (11), cooler (63) be connected in turn by pipeline it is characterised in that：Described cooler (63) outlet connects two points
Road, wherein, a branch connects the CO removing the oxysulfide containing in waste gas and oxycarbide2Scrubbing tower (19), is constituted
Emission-control equipment；Another branch is sequentially connected O2Scrubbing tower (62), exsiccator (28), copper mesh deaerating plant (34) and lazy
Gas cabinet (38), constitutes the lazy device of waste gas system, also includes and can control second single electricity normally opened (84) moment monitoring exhaust gas flow
Gas flow sensor (83).
2. oil carrier exhaust-gas treatment according to claim 1 and using the lazy device of waste gas system it is characterised in that：Described CO2Wash
The outlet washing tower (19) is connected with two paths, and first is to be connected and directly discharge acceptable exhaust with scrubbing tower outlet
Path, Article 2 is and CO2Path that is that the import of scrubbing tower (19) is connected and again reclaiming the unqualified exhaust-gas treatment of processing, institute
State CO2The outlet of scrubbing tower (19) is connected with CO2Concentration detector (66), the path of first article of waste gas discharge is connected with the 4th
Electromagnetism normally closed type bi-bit bi-pass reversal valve is the 4th single electricity normally closed (64) and Article 2 reclaims the unqualified exhaust-gas treatment of processing again
Path on to be connected with the 7th electromagnetism bi-bit bi-pass reversal valve open in usual be the 7th single electricity normally opened (65), described CO2Concentration Testing
The output signal of telecommunication of device (66) is connected for reality with the control signal of the 4th single electricity normally closed (64) and the 7th single electricity normally opened (65)
When detection and analysis waste gas in CO2It is unqualified that concentration and the path of first waste gas discharge of control, Article 2 reclaim processing again
The path of exhaust-gas treatment open close；The outlet of described copper mesh deaerating plant (34) is connected with two paths, first be with described
The import of noble gas cabinet (38) is connected the process path directly storing acceptable exhaust, and Article 2 is and copper mesh deaerating plant
(34) import is connected and again reclaims the process path processing unqualified waste gas, and the outlet of described copper mesh deaerating plant (34) is even
It is connected to oxygen concentration sensor (35), it is that first article of process path is connected with the 3rd electromagnetism normally closed type bi-bit bi-pass reversal valve
Three single electricity normally closed (48) and Article 2 reclaim that to be connected with the 5th electromagnetism on the process path process unqualified waste gas open in usual again
Bi-bit bi-pass reversal valve is the 5th single electricity normally opened (49), and the output signal of telecommunication of described oxygen concentration sensor (35) and the 3rd list are electric
Normally closed (48) are connected for the O in real-time detection analysis waste gas with the control signal of the 5th single electricity normally opened (49)2Concentration and control
Process path, the Article 2 of first waste gas storage of system reclaim the break-make processing path processing unqualified waste gas again.
3. oil carrier exhaust-gas treatment according to claim 1 and using the lazy device of waste gas system it is characterised in that：Described catalysis
It is provided with exhaust gas turbine (9) between reforming unit (11) and cooler (63).
4. oil carrier exhaust-gas treatment according to claim 1 and using the lazy device of waste gas system it is characterised in that：Described copper mesh
Deaerating plant (34) is designed to cloth inlet shape for air inlet.
5. oil carrier exhaust-gas treatment according to claim 1 and using the lazy device of waste gas system it is characterised in that：Described cooling
The exhaust gas entrance of device (63) is designed to cloth inlet shape.
6. oil carrier exhaust-gas treatment according to claim 5 and using the lazy device of waste gas system it is characterised in that：Described cooling
Device (63) napex is equipped with direct acting type air relief valve.
7. oil carrier exhaust-gas treatment according to claim 1 and using the lazy device of waste gas system it is characterised in that：Described CO2Wash
Wash tower (19) and O2All include tower interior circulation water tank and chemicals dosing plant in scrubbing tower (62), in described cyclic water tank, be provided with water
Level sensor and the acid-base value monitoring sensor for monitoring recirculated water acid-base value, described chemicals dosing plant includes drug tube, institute
State level sensor and supplied water to described cyclic water tank by acting on manually-electromagnetic type pump valve connection water pump, described acid-base value prison
Survey Sensor monitoring recirculated water acid-base value and automatism is in single-acting electromagnetism normally closed type bi-bit bi-pass reversal valve, make described dispensing
Pipe is offerd medicine, and wherein, the dispensing mouth of drug tube is designed as reducing pipe shower nozzle.
8. oil carrier exhaust-gas treatment according to claim 1 and using the lazy device of waste gas system it is characterised in that：Described drying
The outlet of device (28) is connected with two paths, and first is to be connected with the import of described copper mesh deaerating plant (34) and directly will be wet
Spend the path that qualified waste gas makees further catalyzed conversion, Article 2 is to be connected with the import of exsiccator (28) and do not conform to humidity
The waste gas of the lattice process path that drain is processed again, the outlet of described exsiccator (28) is connected with air humidity sensor (30),
Article first, the path of exhaust fume catalytic conversion being connected with the second electromagnetism normally closed type bi-bit bi-pass reversal valve is that second single electricity is normally closed
(47), Article 2 waste gas is connected with the 4th electromagnetism bi-bit bi-pass reversal valve open in usual on the process path of drain processing again is the
Four single electricity normally opened (46), the output signal of telecommunication of described air humidity sensor (30) and second single electricity normally closed (47) and the 4th single electricity
The control signal of normally opened (46) is connected and analyzes the moisture in waste gas for real-time detection and control first exhaust fume catalytic
The break-make of the path of conversion, the Article 2 waste gas process path that drain is processed again.
9. a kind of technique applied oil carrier exhaust-gas treatment as claimed in claim 8 and utilize the lazy device of waste gas system, its feature
It is to comprise the steps：
A, marine exhaust are burnt further through pipeline burner 2, so that EGT is raised, enter described catalytic convention design
(11), there is chemical reaction；
B, through described cooler (63) cooling, EGT decline, respectively enter different scrubbing towers in two kinds of situation；
C, when not producing noble gas, enter described CO2There is chemical reaction, CO in scrubbing tower (19)2Scrubbing tower (19) outlet is provided with
CO2Concentration sensor, works as CO2When concentration reaches below setting, enter air, work as CO2When concentration is more than setting, drain
Return CO2Washing tower inlet；
D, when producing noble gas, enter described O2There is chemical reaction in scrubbing tower (62), then done in described exsiccator (28)
Dry, through the detection of described air humidity sensor, if unqualified waste gas is dried, again drain into described exsiccator (28) entrance, and
Acceptable exhaust enters described copper mesh deaerating plant (34) and redox reaction occurs to remove oxygen；
E, the waste gas to step d make further deoxygenation, the oxygen concentration of the outlet setting through described copper mesh deaerating plant (34)
Oxygen concentration analyzed by sensor (35), if unqualified noble gas is back in described copper mesh deaerating plant (34) again, and qualified lazy
Gas enters noble gas cabinet (38) and is laid in.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510051553.4A CN104645797B (en) | 2015-01-31 | 2015-01-31 | Device and technology for treating exhaust gas of tank ship and preparing inert gas from exhaust gas |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510051553.4A CN104645797B (en) | 2015-01-31 | 2015-01-31 | Device and technology for treating exhaust gas of tank ship and preparing inert gas from exhaust gas |
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| CN104645797A CN104645797A (en) | 2015-05-27 |
| CN104645797B true CN104645797B (en) | 2017-02-22 |
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| KR102054214B1 (en) * | 2018-10-26 | 2019-12-10 | (주)세라컴 | System for after-treatment of exhaust gas, and method for controlling of the same |
| CN110671708A (en) * | 2019-09-24 | 2020-01-10 | 南通亚泰工程技术有限公司 | Multifunctional inert gas system for treating VOC |
| CN115559835A (en) * | 2022-09-30 | 2023-01-03 | 中船动力研究院有限公司 | Exhaust gas recirculation system of dual-fuel engine |
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| JP5769732B2 (en) * | 2010-12-27 | 2015-08-26 | エヌ・イーケムキャット株式会社 | Selective reduction catalyst, exhaust gas purification apparatus and exhaust gas purification method using the same |
| CN103585867B (en) * | 2013-11-26 | 2016-05-11 | 天津大学 | A kind of flue gas desulfurization and denitration method and device |
| CN103768943A (en) * | 2014-01-23 | 2014-05-07 | 天津大学 | Smoke desulfurization and denitrification method and device of fuel engine |
| CN203816485U (en) * | 2014-03-13 | 2014-09-10 | 成都京东方光电科技有限公司 | Chemical adding device |
| CN203816487U (en) * | 2014-04-29 | 2014-09-10 | 昆山市鑫蓝电子科技有限公司 | Washing tower system |
| CN204469516U (en) * | 2015-01-31 | 2015-07-15 | 浙江海洋学院 | A kind of oil carrier exhaust-gas treatment and the lazy device of the waste gas system of utilization |
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