CN105214497A - The conveying of boat diesel engine exhuast gas desulfurization high reliability mixed liquor and measure and control device - Google Patents
The conveying of boat diesel engine exhuast gas desulfurization high reliability mixed liquor and measure and control device Download PDFInfo
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- CN105214497A CN105214497A CN201410311984.5A CN201410311984A CN105214497A CN 105214497 A CN105214497 A CN 105214497A CN 201410311984 A CN201410311984 A CN 201410311984A CN 105214497 A CN105214497 A CN 105214497A
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- 238000006477 desulfuration reaction Methods 0.000 title abstract description 30
- 230000023556 desulfurization Effects 0.000 title abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 56
- 239000007921 spray Substances 0.000 claims abstract description 28
- 239000003513 alkali Substances 0.000 claims abstract description 26
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 22
- 238000005406 washing Methods 0.000 claims abstract description 19
- 238000013461 design Methods 0.000 claims abstract description 8
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 5
- 239000002253 acid Substances 0.000 claims description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 claims description 5
- 239000012047 saturated solution Substances 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 26
- 238000000034 method Methods 0.000 abstract description 24
- 239000002912 waste gas Substances 0.000 abstract description 14
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 abstract description 11
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract description 7
- 239000002245 particle Substances 0.000 abstract description 7
- 239000007864 aqueous solution Substances 0.000 abstract description 5
- 238000010521 absorption reaction Methods 0.000 abstract description 4
- 238000003915 air pollution Methods 0.000 abstract description 3
- 230000003009 desulfurizing effect Effects 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000000243 solution Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 2
- 230000007257 malfunction Effects 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 33
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 6
- 239000011593 sulfur Substances 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 5
- 235000011941 Tilia x europaea Nutrition 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 239000004571 lime Substances 0.000 description 5
- 239000000446 fuel Substances 0.000 description 4
- 239000013535 sea water Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 239000000395 magnesium oxide Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052815 sulfur oxide Inorganic materials 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 230000008520 organization Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 239000010759 marine diesel oil Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 239000011555 saturated liquid Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention discloses the conveying of a kind of high reliability mixed liquor for boat diesel engine exhuast gas desulfurization and measure and control device, belong to Air Pollution Control and marine exhaust emission control field.System is made up of conveying and measure and control devices etc. such as washing kettle, neutralisation treatment device, sump, alkali liquid tank, solid-liquid separator, saturated flow container, solids discharge storehouse, process mixed liquors.Boat diesel engine waste gas is entered in washing kettle fully to mix with spray desulfurization alkaline aqueous solution and contact, and by neutralisation treatment solution absorption oxysulfide wherein, form sulfate.Other particle in waste gas, also by aqueous solution attachment, mixing, by separation, process, reclaims.Based on reliability theory and method, the connection in series-parallel Combination Design with each parts of measure and control device carried by the mixed liquor carried out in boat diesel engine apparatus for desulfurizing exhaust gas, reduce mixed liquor conveying and measure and control device probability of malfunction, increase substantially exhuast gas desulfurization equipment reliability of operation, meet boat diesel engine exhuast gas desulfurization requirement.
Description
Technical field
The invention discloses the conveying of a kind of high reliability mixed liquor for boat diesel engine exhuast gas desulfurization and measure and control device, belong to Air Pollution Control and marine ship exhaust gas measuring field.By boat diesel engine waste gas through heat exchange and after cooling, enter and contact washing kettle interior fully mixing with spray desulfurization alkaline aqueous solution, and by neutralisation treatment solution absorption oxysulfide wherein, form sulfate.Other particle in waste gas is also adhered to by the aqueous solution, mixing, by separating treatment, recovery.Complete the desulfurization of boat diesel engine exhaust-gas efficient rate, reach International Maritime Organization to boat diesel engine waste gas sulfur oxides emissions limitation standard, meet Air Pollution Control and environmental protection requirement.
Background technology
Shipping occupies leading position in global trade freight transportation.The boat diesel engine energy used is mainly marine diesel oil, and in working process of diesel engine, fuel combustion produces large quantity of exhaust gas one of primary pollution source becoming marine atmosphere.
Oxysulfide SO in marine exhaust
x(sulfur dioxide SO
2with sulfur trioxide SO
3) be that sulphur in fuel oil and sulfide are as hydrogen sulfide (H
2s) and mercaptan (RSH) etc. produce after combustion.Marine diesel machine host is generally fuel mainly with heavy oil, and particularly many in foreign-going ship fuel containing poor residuum, the sulfur content of fuel oil is high, the middle SO of the waste gas of therefore boat diesel engine discharge
xhigh.
Oxysulfide (the SO that boat diesel engine fuel combustion generates
x), nitrogen oxide (NO
x), oxycarbide (CO
2, CO), HC and solid particle etc. drain into air, cause atmosphere pollution, greenhouse effects, climate warming, even form acid rain, bring harm to the mankind.All actively adopting an effective measure in many countries and regions, restriction marine exhaust is to the pollution of air.
In atmosphere pollution environmental improvement, boat diesel engine discharging waste gas, on the impact of atmospheric environment, is particularly more and more concerned the impact in littoral area, harbour.In the desulfurization of boat diesel engine discharging waste gas and flue gas, particle post processing requires more and more stricter, more and more higher to particle equipment for after-treatment technical property requirements in desulfurization and flue gas.
The flue gas desulfurization technique mainly wet desulphurization of coal-fired (power plant) boiler applications, comprises calcium method: lime (stone)---gypsum on land, is used widely in the desulfurization project of large power plant and Industrial Boiler; The gypsum generated easily causes pipeline scale, blocking.Magnesium oxide method: external industrial applications has the operational performance of twenties years, and because MgO activity is higher than limewash, desulfuration efficiency is also high compared with lime method, less scaling.Its shortcoming is that magnesia removal process needs calcination, and technique is more complicated, if but direct employing abandons method, and magnesium salts can cause secondary pollution, and overall operation expense is also higher.Sodalime double alkali method adopts NaOH and lime (calcium hydroxide) two kinds of alkaline matters to do the sulfur method of desulfurizing agent.The feature of the comprehensive lime method of sodalime double alkali method and sodium alkali, solves the problem of the Ta Neiyi fouling of lime method, possesses again the advantage that sodium alkali absorption efficiency is high.Sea water desulfuration: using seawater as absorbent, fresh-water-saving resource; Absorbed SO
xchange into the natural constituents in seawater---sulfate, discarded object does not process, and cost is low; Shortcoming is the region high to waste discharge requirement, is difficult to reach standard high.
Due to boats and ships and diesel engine work characteristics, the exhausted air quantity given off changes with load, requires effectively test system components in the operation of exhuast gas desulfurization equipment and control, and ensures high desulfurization efficiency.Simultaneously due to the particularity of boats and ships oceangoing voyage, high to the reliability requirement of exhuast gas desulfurization equipment various piece, therefore technical difficulty is large.
As the states such as America and Europe have researched and developed particle wash equipment in the desulfurization of boat diesel engine discharging waste gas and flue gas, application soda and seawater method, carries out neutralization reaction by spray alkaline solution or seawater with SOx gas and carrys out desulfurization, the particle simultaneously in cleaning flue gas.And China also belongs to blank at present in boat diesel engine discharging waste gas desulphurization plant.
Summary of the invention
According to Ship Structure feature and condition of work, the invention provides the conveying of a kind of boat diesel engine exhaust-gas efficient washing desulphurization high reliability mixed liquor and measure and control device, its compact conformation, reliable, after sulfur content can be used to be less than the boat diesel engine exhuast gas desulfurization process of 3.5% diesel oil, sulfur content is less than 0.1%, namely desulfuration efficiency reaches more than 97.2%, meets the bunker oil sulfur content new standard requirement that International Maritime Organization IMO requires to perform.
Principle of the present invention is: the waste gas that boat diesel engine is discharged enters washing desulphurization system, by control and the technical parameter test of each instrument and supplies process operation of system, oxysulfide in process gas and spray NaOH aqueous slkali are in condition that optimum chemical reacts and state, chemical reaction is abundant, reduce sulfur oxides emissions to greatest extent, reach standard-required.Product Na
2sO
3be down at the bottom of still with spray liquid, through washing, neutralization, process, separation, reclaim.For reducing system equipment fault, improve equipment dependability, based on reliability design, the Liquid transfer in system and measure and control device are carried out to the connection in series-parallel Combination Design of mechanical part, electrical components, sensor, reduce probability of equipment failure, increase substantially exhuast gas desulfurization equipment reliability of operation.Simultaneously, for improving equipment maintenance performance, according to ship equipment condition of work and feature, invent Liquid Residue recovery structure device, Liquid Residue in pipeline in maintenance of equipment and pump is effectively recycled, avoids contamination and affect peripheral equipment work.
Equipment composition of the present invention mainly comprises spray washing still (1), exhaust gas entrance (2), neutralisation treatment device (3), water tank (4), alkali liquid tank (5), solid-liquid separator (6), saturated flow container (7), dirt discharge bin (8), spray liquid conveying and measure and control device (9), spray hydraulic control unit (10), spray hydraulic control unit (11), circulation fluid conveying and measure and control device (12), disappear and wash the conveying of dosing water and measure and control device (13), alkali lye conveying and measure and control device (14), mixed liquor conveying and measure and control device (15), saturated solution conveying and measure and control device (16), dirt discharge conveying device (17).
Mixed liquor conveying of the present invention and measure and control device (15) are arranged between solid-liquid separator (6) and neutralisation treatment device (3).Mixed liquor based on reliability design is carried with measure and control device (15), 2 arms in parallel that acid and alkali-resistance liquid pump (19) export pipeline is arranged are installed respectively 1 acid and alkali-resistance motor-driven valve (20) and (21), greatly reduce the failure probability of mixed liquor conveying and measure and control device, control system computer moves valve regulation mixed liquor flow according to machine operation automatic control electric.When acid and alkali-resistance motor-driven valve (20), (21) one of them acidproof alkali lye motor-driven valve fault, another acidproof alkali lye motor-driven valve normally runs, and ensures system high reliability.
Based on the mixed liquor conveying control device (15) of reliability design, acid and alkali-resistance liquid pump export pipeline (25) is arranged respectively 2 series connection acid and alkali-resistance flow quantity sensors (22,23), greatly reduce the failure probability of alkali lye conveying and measure and control device, the mixed liquor flow information of acid and alkali-resistance liquid pump conveying solid-liquid separator (6) is real-time transmitted to System control computer, moves valve regulation mixed liquor flow according to machine operation automatic control electric.When wherein 2 series connection one of acidproof flow quantity sensors faults, another sensor normally runs, and ensures system high reliability.
Mixed liquor conveying control device (15), as shown in Figure 2.Acid and alkali-resistance liquid pump (19) entrance pipe (24) arranges catheter interface, and catheter installs hand-operated valve (26), and when equipment runs, hand-operated valve (26) cuts out.During acid and alkali-resistance liquid pump (19) fault, close neutralisation treatment device (3) outlet hand-operated valve, mobile guide pump (27) inlet tube is connected catheter interface, open hand-operated valve, start guide pump and the mixed liquor in residual acid and alkali-resistance liquid pump and main road is imported solid-liquid separator (6), fast and easy maintenance or replacing acid and alkali-resistance liquid pump, avoid pipeline and intra-tank mixed liquor to overflow and cause cabin or deck to amass mixed liquor and impact device fails around.
Accompanying drawing explanation
Accompanying drawing 1 is boat diesel engine apparatus for desulfurizing exhaust gas composition and principle
Accompanying drawing 2 is boat diesel engine exhuast gas desulfurization high reliability mixed liquor conveying measure and control devices
In figure: spray washing still (1), exhaust gas entrance (2), neutralisation treatment device (3), water tank (4), alkali liquid tank (5), solid-liquid separator (6), saturated flow container (7), dirt discharge bin (8), spray liquid conveying and measure and control device (9), spray hydraulic control unit (10), spray hydraulic control unit (11), circulation fluid conveying and measure and control device (12), the conveying of cleaning dosing water and measure and control device (13), alkali lye conveying and measure and control device (14), mixed liquor conveying and measure and control device (15), saturated solution conveying and measure and control device (16), dirt discharge conveying device (17), washing kettle outlet (18), mixture pump (19), motor-driven valve (20), (21), mixed liquor flow sensor (22), (23), outlet main line (24), (25), hand-operated valve (26), mobile guide pump (27).
Detailed description of the invention
First, according to ship's navigation and by diesel exhaust desulfurization requirement in departure from port mouth seashore process, water tank (4) in system and alkali liquid tank (5) store alkali lye and the water of q.s, water tank (4) and neutralisation treatment device (3) by pipeline with clean dosing water and carry and be connected with measure and control device (13).Alkali liquid tank (5) and neutralisation treatment device (3) are carried by pipeline and alkali lye and are connected with measure and control device (14), alkali lye and water are input to the desulfurization aqueous solution being mixed with in neutralisation treatment device (3) and requiring concentration.
First the waste gas of discharging in the boat diesel engine course of work be cooled to less than 80 degree through heat exchange, enters washing kettle (1) interior middle and lower part by entering gas passage.
The spray equipment of washing kettle (1) middle and upper part, ejection is containing the water-soluble drop of desulfurization of NaOH thick and fast, and these drops and the sulfur-containing oxide exhaust gas contact moved upward, collision, fall bottom washing kettle after abundant solution absorption oxysulfide.The gas containing fine drop after desulfurization process, by the demister removing fine drop wherein on the top of spray equipment, avoid it to be discharged outside washing kettle, thus after ensureing process, the gas of discharge reaches discharge standard.
Washing kettle (1) interior spray liquid is carried and measure and control device (9) by spray liquid by neutralisation treatment device (3), and spray hydraulic control unit (10), spray hydraulic control unit (11) supplies.
Spray liquid in washing kettle (1) drops on still inner bottom part after absorbing the oxysulfide in waste gas, is carried to be input in neutralisation treatment device (3) by the mixed solution absorbing oxysulfide bottom washing kettle with measure and control device (12) to generate sulfate with alkali lye neutralization reaction further by circulation fluid.The concentration not reaching capacity as sulfate or set, be transported to the spray equipment in washing kettle again through spray liquid conveying and measure and control device (9), spray liquid control unit (10), (11), continue to neutralize the oxysulfide absorbed in waste gas by shower nozzle (nozzle) spray.
If sulfate reaches capacity or the concentration that sets and pollutant load reach certain value in neutralisation treatment device (3) interior mixed liquor, then through the output pipe of neutralisation treatment device (3) bottom, mixed liquor conveying enters solid-liquid separator (6) with measure and control device (15).
Particulate dirt in mixed liquor is separated with saturated liquid by solid-liquid separator (6), liquid after separation is transported to saturated flow container (7), when after boats and ships to bank being transported to containing sulfate saturated solution as sulfate chemical industry Feedstock treating through saturated solution conveying with measure and control device (16).Solid-liquid separator (6) isolated dirt is transported to dirt discharge bin (8) through dirt discharge conveying device (17), when being processed by dirt discharge after boats and ships to bank.
Mixed liquor conveying and measure and control device (15) are arranged between solid-liquid separator (6) and neutralisation treatment device (3).Mixed liquor based on reliability design is carried with measure and control device (15), 2 arms in parallel that acid and alkali-resistance liquid pump (19) export pipeline is arranged are installed respectively 1 acid and alkali-resistance motor-driven valve (20) and (21), greatly reduce the failure probability of mixed liquor conveying and measure and control device, control system computer moves valve regulation mixed liquor flow according to machine operation automatic control electric.When acid and alkali-resistance motor-driven valve (20), (21) one of them acidproof alkali lye motor-driven valve fault, another acidproof alkali lye motor-driven valve normally runs, and ensures system high reliability.
In mixed liquor conveying control device (15), acid and alkali-resistance liquid pump export pipeline (25) arranges 2 series connection acid and alkali-resistance flow quantity sensors (22 respectively, 23), greatly reduce the failure probability of alkali lye conveying and measure and control device, the mixed liquor flow information of acid and alkali-resistance liquid pump conveying solid-liquid separator (6) is real-time transmitted to System control computer, moves valve regulation mixed liquor flow according to machine operation automatic control electric.When wherein 2 series connection one of acidproof flow quantity sensors faults, another sensor normally runs, and ensures system high reliability.
In mixed liquor conveying control device (15), acid and alkali-resistance liquid pump (19) entrance pipe (24) arranges catheter interface, catheter installs hand-operated valve (26), and when equipment runs, hand-operated valve (26) cuts out.During acid and alkali-resistance liquid pump (19) fault, close neutralisation treatment device (3) outlet hand-operated valve, mobile guide pump (27) inlet tube is connected catheter interface, open hand-operated valve, start guide pump and the mixed liquor in residual acid and alkali-resistance liquid pump and main road is imported solid-liquid separator (6), fast and easy maintenance or replacing acid and alkali-resistance liquid pump, avoid pipeline and intra-tank mixed liquor to overflow and cause cabin or deck to amass mixed liquor and impact device fails around.
The invention has the beneficial effects as follows: the high reliability realizing boat diesel engine exhuast gas desulfurization equipment is run, and has better maintainability simultaneously, meets boat diesel engine exhuast gas desulfurization requirement, reach the Marine Diesel Engine's Harmful Exhaust Emission standard that IMO requires to perform.
Claims (4)
1. a boat diesel engine exhaust-gas efficient washing desulphurization equipment, it is characterized in that: mainly comprise spray washing still (1), exhaust gas entrance (2), neutralisation treatment device (3), water tank (4), alkali liquid tank (5), solid-liquid separator (6), saturated flow container (7), dirt discharge bin (8), spray liquid conveying and measure and control device (9), spray hydraulic control unit (10), spray hydraulic control unit (11), circulation fluid conveying and measure and control device (12), the conveying of cleaning dosing water and measure and control device (13), alkali lye conveying and measure and control device (14), mixed liquor conveying and measure and control device (15), saturated solution conveying and measure and control device (16), dirt discharge conveying device (17).
2. the mixed liquor conveying in claim 1 and measure and control device (15) are arranged between solid-liquid separator (6) and neutralisation treatment device (3).Mixed liquor based on reliability design is carried with measure and control device (15), 2 arms in parallel that acid and alkali-resistance liquid pump (19) export pipeline is arranged are installed respectively 1 acid and alkali-resistance motor-driven valve (20) and (21), greatly reduce the failure probability of mixed liquor conveying and measure and control device, control system computer moves valve regulation mixed liquor flow according to machine operation automatic control electric.When acid and alkali-resistance motor-driven valve (20), (21) one of them acidproof alkali lye motor-driven valve fault, another acidproof alkali lye motor-driven valve normally runs, and ensures system high reliability.
3. in claim 2 based on the mixed liquor conveying control device (15) of reliability design, acid and alkali-resistance liquid pump export pipeline (25) is arranged respectively 2 series connection acid and alkali-resistance flow quantity sensors (22,23), greatly reduce the failure probability of alkali lye conveying and measure and control device, the mixed liquor flow information of acid and alkali-resistance liquid pump conveying solid-liquid separator (6) is real-time transmitted to System control computer, moves valve regulation mixed liquor flow according to machine operation automatic control electric.When wherein 2 series connection one of acidproof flow quantity sensors faults, another sensor normally runs, and ensures system high reliability.
4. in claim 2 in mixed liquor conveying control device (15), acid and alkali-resistance liquid pump (19) entrance pipe (24) arranges catheter interface, catheter installs hand-operated valve (26), and when equipment runs, hand-operated valve (26) cuts out.During acid and alkali-resistance liquid pump (19) fault, close neutralisation treatment device (3) outlet hand-operated valve, mobile guide pump (27) inlet tube is connected catheter interface, open hand-operated valve, start guide pump and the mixed liquor in residual acid and alkali-resistance liquid pump and main road is imported solid-liquid separator (6), fast and easy maintenance or replacing acid and alkali-resistance liquid pump, avoid pipeline and intra-tank mixed liquor to overflow and cause cabin or deck to amass mixed liquor and impact device fails around.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410311984.5A CN105214497A (en) | 2014-06-30 | 2014-06-30 | The conveying of boat diesel engine exhuast gas desulfurization high reliability mixed liquor and measure and control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410311984.5A CN105214497A (en) | 2014-06-30 | 2014-06-30 | The conveying of boat diesel engine exhuast gas desulfurization high reliability mixed liquor and measure and control device |
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| Publication Number | Publication Date |
|---|---|
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ID=54983973
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114146562A (en) * | 2020-09-08 | 2022-03-08 | 三井易艾斯机械有限公司 | Cleaning and draining treatment device for ship waste gas |
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- 2014-06-30 CN CN201410311984.5A patent/CN105214497A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114146562A (en) * | 2020-09-08 | 2022-03-08 | 三井易艾斯机械有限公司 | Cleaning and draining treatment device for ship waste gas |
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Application publication date: 20160106 |
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| WD01 | Invention patent application deemed withdrawn after publication |