CN104689699B - A kind of Ship Power Equipment exhaust gas cleaning system - Google Patents
A kind of Ship Power Equipment exhaust gas cleaning system Download PDFInfo
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- CN104689699B CN104689699B CN201510082845.4A CN201510082845A CN104689699B CN 104689699 B CN104689699 B CN 104689699B CN 201510082845 A CN201510082845 A CN 201510082845A CN 104689699 B CN104689699 B CN 104689699B
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Abstract
It is an object of the invention to provide a kind of Ship Power Equipment exhaust gas cleaning system, with alkali liquor as absorbing liquid, the most efficiently remove the oxysulfide in marine exhaust and granule.Mainly include main scrubber, demister, circulation line, circulating pump group module, circulation fluid refrigerating module, alkali liquor feed unit, unit for treating water and associated ping instrument and meter etc..The present invention, with alkali liquor as absorbent, has the remove of efficient oxysulfide and granule simultaneously；The optional equipments such as system bulk is little, and circuit design is simple, reliable, no-arbitrary pricing, low cost；System emission control and the switching of non-emission control district operating condition can be realized；Saving boats and ships energy consumption, feasible system stably automatically controls.
Description
Technical field
The present invention relates to a kind of exhaust gas cleaning system removing marine exhaust sulphur oxide and granule.
Background technology
Recently as the fast development of shipping industry, SOx and the granule content of the discharge of its power set enter one
Step increases, and the control to SOx and particulate emission requires harsher.Main and auxiliary machine peculiar to vessel, fuel oil pot
SOx and granule that stove and incinerator are discharged in air all can cause the biggest harm to the mankind and environment.Mesh
The front control for shiphoard machinery system oxysulfide and granule is the most economical suitable with waste gas washing desulphurization device
With.
Conventional washing system is to increase mass-transfer efficiency and waste gas and washing by interpolation filler in absorption tower
The contact area of liquid improves the removal efficiency of SOx in waste gas, removes most granule simultaneously.Routine is washed
The system of washing needs to install filler, and circuit design is complicated, and price is high, volume is big, and void tower is with greater need for comparing
Big volume, volume increases the cost of shipbuilding compared with conference.Additionally, the abjection of granule is imitated by conventional wash system
Rate is the highest, it is difficult to meet the strictest Abgasgesetz.
In view of the increasingly stringent of Abgasgesetz, the efficient exhaust air-washing facility of development of new, particularly can be with existing
Having Ship Power Equipment supporting, the washing facility that shipowner more can accept, is to solve China's current and future
Foreign-going ship frees in and out each marine site, the world, promotes China's shipping cause to go to the world indispensable important arrange
Execute.
In prior art, the technology of main marine exhaust washing removing pollutant mainly has:
Patent " desulfurizing exhaust gas of seagoing vessel method and device (200810048002) ", uses material filling type washing system,
Washing marine exhaust, its equipment volume is big, and equipment occupation space is big, relatively costly, and not
There is higher particulate removal rate.It is only to plus fifteen from device before water-saving acid separator in terms of water process,
Fail to the heavy metal ion in waste water and with or without playing good removal effect.
Patent " magnesio-seawater method desulfurization system for ship (201110039565.7) ", be one combine magnesium processes and
Seawater method realizes desulfurization purpose, is also to use conventional washing tower, and multi-pipeline, multi-stage spray, system pipeline sets
In meter, frequency variable circulating pump and sea water pump place pipeline are all used the design side being controlled two pipelines by a pump
Method, flow-control difficulty, pipe design is complicated, also can increase cost accordingly.The mode of multi-stage spray, increases
The spray flux of circulation fluid and the power consumption of circulating pump are added.
Summary of the invention
It is an object of the invention to provide the efficient oxysulfide removed in marine exhaust and a kind of ship of granule
Oceangoing ship engine washing system.
The object of the present invention is achieved like this:
One Ship Power Equipment exhaust gas cleaning system of the present invention, is characterized in that: include main scrubber (A),
Unit for treating water (10), demister (27), alkali liquor service tank (32), Ship Power Equipment (1) is passed through
Discharge duct (25), through waste heat boiler (26), is respectively communicated with main scrubber (A) by waste gas three-way valve (40)
With exhaust main (29), Venturi tube reducing pipe (3) that main scrubber (A) includes arranging from top to bottom,
Trunnion (4), increaser (5), main scrubber outlet, Venturi tube reducing pipe (3) is provided above injection
Assembly (2), arranges cyclone demister (6) in main scrubber outlet, main scrubber outlet is washed by main
Wash device gas main scrubber outlet conduit (28) and connect exhaust main (29), demister through demister (27)
(27) main scrubber outlet, main scrubber outlet are connected by demister liquid return line (30)
Lower section arranges main scrubber washing liquor exhaust pipe road (41), and main scrubber washing liquor exhaust pipe road (41) are with three
Logical mode empties pipeline (9) with cleaning mixture circulation line (11) and cleaning mixture respectively and is connected, and cleaning mixture circulates
Pipeline (11) is connected with ejection assemblies (2), cleaning mixture circulation line (11) is arranged the first circulating pump (12),
Heat exchanger (17), the cleaning mixture circulation line (11) between the first circulating pump (12) and heat exchanger (17)
Connecting cleaning mixture earial drainage pipeline (34), cleaning mixture earial drainage pipeline (34) connects unit for treating water (10), main
Scrubber's outlet connects unit for treating water (10) by cleaning mixture overflow passage (31), and main scrubber exports
Cleaning mixture circulation line (11) between pipe and the first circulating pump (12) connects blood circulation and supplies alkali pipeline (42),
Blood circulation connects alkali liquor service tank (32) for alkali pipeline (42), and alkali liquor service tank (32) is processed by water
Unit is connected with unit for treating water (10) for alkali pipeline (33), cooling water inlet pipe (20) cooled water
Pump (45), cooling water stop valve (21) are connected with heat exchanger (17), the heat exchanger master of heat exchanger (17)
The logical supercooled water three-way valve (19) of scrubber's outlet (18) and cooling water inlet pipe (20) and outlet
(43) it is connected.
The present invention can also include:
1, cleaning mixture circulation line (11) is upper arranges second circulating pump (13) in parallel with the first circulating pump (12).
Present invention have an advantage that the present invention can remove the most efficiently simultaneously the oxysulfide in boats and ships discharge and
Granule.Not only there is higher desulfuration efficiency, the limits value of Abgasgesetz can be met, and in high desulfurization
There is on the basis of rate the highest particulate removal rate, reach more than 95%, can be with the Abgasgesetz of increasingly stringent.
Compared with tradition boats and ships wash mill, the advantage with efficient removal multiple pollutant simultaneously, system is simple,
Volume is little, decreases system operation cost, is more suitable for obsolete vessel transformation and the installation of new ship.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is wastewater treatment process figure.
Detailed description of the invention
Illustrate below in conjunction with the accompanying drawings and the present invention be described in more detail:
In conjunction with Fig. 1～2, Ship Power Equipment efficiency of waste gas washing system of the present invention specifically includes that main scrubber,
Demister, circulation fluid system, make-up water unit, alkali liquor feed unit, unit for treating water, circulation fluid cools down
System, valve member, system connecting line and the sensor such as temperature, pressure.Ship Power Equipment 1 passes through aerofluxus
Pipeline 25, through waste heat boiler 26, is connected with main scrubber A and exhaust main 29 by three-way valve 40, main
Scrubber's gases exit line 28 is connected with exhaust main 29 through demister 27.The cleaning mixture outlet of main scrubber
Pipeline 41 empties pipeline 9 in threeway mode with cleaning mixture circulation line 11 and cleaning mixture and is connected, and cleaning mixture follows
Endless tube road 11 via circulating pump 12,13, heat exchanger 17 is connected with main scrubber ejection assemblies 2.Cleaning mixture
Emptying pipeline 9, cleaning mixture earial drainage pipeline 34 and cleaning mixture overflow passage 31 are connected with unit for treating water 10.
Demister liquid return line 30 is connected with main scrubber A.
Main scrubber A includes ejection assemblies 2, Venturi tube reducing pipe 3, trunnion 4, increaser 5, liquid level
Sensor 7, cyclone demister 6 and connecting line.
Alkali liquor feed unit, by alkali liquor service tank 32, by washing system for alkali pipeline 42, via cyclic system
System alkali fluid supply pump 35, is connected with circulation line 11 in threeway mode；By unit for treating water for alkali pipeline
33 are connected with unit for treating water 10.
Cleaning mixture circulation line 11, it is sequentially installed with circulating pump 12, stand-by pump 13, heat exchanger 17,
And pressure transducer 23, temperature sensor 22, effusion meter 24.
Circulation fluid cooling system, the cooled water pump of cooling water inlet pipe 20 45, cool down water stop valve 21 and change
Hot device connects 17, heat exchanger exit pipe 18, logical supercooled water three-way valve 19, with cooling water inlet pipe 20 and
Outlet 43 is connected, and heat exchanger 17 is imported and exported and is provided with temperature sensor 46,47.
Make-up water unit, by make-up pipe 37, through make-up pump 36 with threeway mode and circulating line 11
It is connected.
Cleaning mixture emptying pipeline 9, it is provided with stop valve 8；Described cleaning mixture drain line 34 is on it
Flow control valve 38 is installed.
Ship Power Equipment 1 is by discharge duct 25, through waste heat boiler 26, by waste gas three-way valve 40 with
Main scrubber A is connected with exhaust main 29, and main scrubber gases exit line 28 is through demister 27 and aerofluxus
House steward 29 is connected.Washing liquor exhaust pipe road, main scrubber 41 with threeway mode and cleaning mixture circulation line 11 and
Cleaning mixture emptying pipeline 9 is connected.Cleaning mixture circulation line 11, via circulating pump 12,13, heat exchanger 17
It is connected with main scrubber ejection assemblies 2.Cleaning mixture emptying pipeline 9, cleaning mixture earial drainage pipeline 34 and cleaning mixture
Overflow passage 31 is connected with unit for treating water 10.Demister liquid return line 30 is connected with main scrubber A.
Main scrubber A includes ejection assemblies 2, Venturi tube reducing pipe 3, trunnion 4, increaser 5, liquid level
Sensor 7, cyclone demister 6 and connecting line.
Alkali liquor feed unit, by alkali liquor service tank 32, by blood circulation for alkali pipeline 42, via cyclic system
System alkali fluid supply pump 35, is connected with circulation line 11 in threeway mode；By unit for treating water for alkali pipeline
33 are connected with unit for treating water 10.
Circulation line 11, it is sequentially installed with circulating pump 12, stand-by pump 13, heat exchanger 17, and pressure
Sensor 23, temperature sensor 22, effusion meter 24.
Circulation fluid cooling system, the cooled water pump of cooling water inlet pipe 20 45, cool down water stop valve 21 and change
Hot device 17 connects, heat exchanger exit pipe 18, logical supercooled water three-way valve 19, with cooling water inlet pipe 20 and
Outlet 43 is connected, and heat exchanger 17 is imported and exported and is provided with temperature sensor 46,47.
Make-up water unit, by make-up pipe 37, by make-up pump 36 with threeway mode and circulating line 11
It is connected.
Cleaning mixture emptying pipeline 9, it is provided with stop valve 8；Described cleaning mixture drain line 34 is on it
Flow control valve 38 is installed.
Ship's navigation is when non-sulphur emissions control zone, and the waste gas of Ship Power Equipment 1 discharge is by waste gas three
Logical valve 40, is directly discharged in environment by exhaust main 29.When being prepared to enter into sulphur emissions control zone, open
Dynamic washing system, stop valve 8 is closed, make-up pump 37 send water to washing system, and blood circulation alkali liquor supplies
In washings, supply alkali liquor to pump 35, after reaching certain liquid level and pH value, start circulating pump 12,
Stand-by pump 13 is closed, and changes waste gas three-way valve 40, and waste gas flows to main scrubber A, same in main scrubber A
Shi Shixian removing oxysulfide and the function of granule, after process, waste gas is through main scrubber gases exit line 28 warp
Demister 27, enters air from exhaust main 29.The water of demister 27 removing flows into through reflux pipe 30
Main scrubber A, is driven by circulating pump 12 together with circulation fluid, through circulation line 11, enters ejection assemblies 2,
Realize recycling of cleaning mixture.Circulation fluid cooling water is fed heat exchanger by cooling water pump 45 from outboard, and leads to
The conversion of supercooling three-way valve 19, the flow direction of regulation cooling water.Circulation fluid empties pipeline 9 by cleaning mixture,
Cleaning mixture earial drainage pipeline 34 and cleaning mixture overflow passage 31 enter unit for treating water 10, and alkali liquor is processed by water
Alkali fluid supply pump 44 processes through water and enters unit for treating water 10 for alkali pipeline, and waste water is arranged by waste water after treatment
Put pipeline 39 and discharge hull.
Removing oxysulfide function: Ship Power Equipment 1 discharge waste gas by discharge duct 25 through waste heat pot
Stove 26, by the control of exhaust three-way valve 40, according to operation area, selects to enter spray system and gives up
Discharge after gas washing or used exhaust main directly to discharge.After marine exhaust enters main spray thrower A, pass through
The reducing pipe 3 of venturi ramps up, and reaches maximum speed at trunnion 4, by with ejection assemblies 2 phase
Coordinating, high-speed exhaust gas stream drives cleaning mixture flowing, makes the cleaning mixture of ejection assemblies 2 fully be atomized, gas-liquid two
Being fully contacted mutually, oxysulfide is absorbed by liquid absorption, and reaches the desulfuration efficiency equal with tradition desulfurizing tower, from
And achieve efficient desulfurizing function.
Removing granule function: ship high temperature waste gas from exhaustor 25 after three-way valve 40 enters reducing pipe 3,
Flow velocity increases, and after entering trunnion 4, reaches maximum, and circulation fluid is circumferential or radial spray through reducing pipe 3,
Owing to relative velocity is excessive, drop is fully atomized in main scrubber, and granule is wet, and condenses,
After flaring pipeline section 5, flow velocity reduces, and pressure gos up, and makes the cohesion between granule strengthen, and is formed
The dust-laden drop being relatively large in diameter, makes drop separate with gas through vortex-flow and defrosting device 6, and then waste gas is through main
Scrubber's gases exit line 28 removes water smoke further through demister 27, it is achieved thereby that particulate matter is de-
Removing, eliminating efficiency is up to 95%.
Ship Power Equipment efficiency of waste gas washing system, system is to be realized automatically by PLC system the time of running
Control.By make-up pump 37 by make-up pipe 37, from hull, feed sea water or fresh water, make-up water
Amount, be by main scrubber bottom liquid level sensor 7 control and recharge water pump 37 realize.Blood circulation
Alkali liquor is supplied by blood circulation alkali fluid supply pump 35, and the regulation for alkali number is to pass through circulation line
The pH sensor 15 of 11 regulates what blood circulation alkali fluid supply pump 35 realized, during system stable operation, follows
Ring liquid pH maintains about 7.6.Cleaning mixture earial drainage pipeline 34, is when in circulation fluid, salinity reaches limits value
Time, a part of circulation fluid of earial drainage, the water yield of disappearance has make-up water unit and alkali liquor feed unit to supplement, earial drainage
The amount of circulation fluid is to regulate flow control valve 38 by the densimeter 16 on circulation line 11 to control.When
Ship Power Equipment operating mode changes, or system operation situation changes, and circulation fluid passes through cleaning mixture overflow passage 31
Enter unit for treating water 10.When boats and ships are stopped for a long time or system needs maintenance, circulation fluid needs to pass through
Cleaning mixture emptying pipeline 9 empties, and cleaning mixture enters unit for treating water 10.The cooling water of circulation fluid cooling line
The flow of pump 45 is to be controlled by the temperature sensor 22 of circulation line 11, cooling three-way valve 19 be opened to be
Controlled by temperature sensor before and after heat exchanger 46,47, it is possible to reduce cooling water pump 45 energy consumption.
Unit for treating water, uses level Four treatment technology to realize liquid waste processing as shown in Figure 2, carries out waste water respectively
In quenched, emulsifying waste water, greasy dirt granule, flocks waste water impurity, waste water flotation and oxidation, thus can reach IMO
Emission request.
Claims (2)
1. a Ship Power Equipment exhaust gas cleaning system, is characterized in that: include at main scrubber (A), water
Reason unit (10), demister (27), alkali liquor service tank (32), Ship Power Equipment (1) passes through aerofluxus
Pipeline (25), through waste heat boiler (26), is respectively communicated with main scrubber (A) by waste gas three-way valve (40)
With exhaust main (29), Venturi tube reducing pipe (3) that main scrubber (A) includes arranging from top to bottom,
Trunnion (4), increaser (5), main scrubber outlet, Venturi tube reducing pipe (3) is provided above injection
Assembly (2), arranges cyclone demister (6), main scrubber outlet conduit (28) in main scrubber outlet
Connecting exhaust main (29) through demister (27), demister (27) passes through demister liquid return line (30)
Connect main scrubber outlet, main scrubber washing liquor exhaust pipe road (41) be set below main scrubber outlet,
Main scrubber washing liquor exhaust pipe road (41) with threeway mode respectively with cleaning mixture circulation line (11) and washing
Washing liquid emptying pipeline (9) to be connected, cleaning mixture circulation line (11) is connected with ejection assemblies (2), washing
First circulating pump (12), heat exchanger (17), the first circulating pump (12) are set on liquid circulation line (11)
With the cleaning mixture circulation line (11) between heat exchanger (17) connects cleaning mixture earial drainage pipeline (34), washing
Liquid earial drainage pipeline (34) connects unit for treating water (10), and main scrubber outlet passes through cleaning mixture overflow passage
(31) unit for treating water (10), the washing between main scrubber outlet and the first circulating pump (12) are connected
Liquid circulation line (11) connects blood circulation and connects for alkali pipeline (42) for alkali pipeline (42), blood circulation
Alkali liquor service tank (32), alkali liquor service tank (32) is processed with water for alkali pipeline (33) by unit for treating water
Unit (10) is connected, cooling water inlet pipe (20) cooled water pump (45), cooling water stop valve (21)
Being connected with heat exchanger (17), heat exchanger main scrubber outlet (18) of heat exchanger (17) is by cooling
Water three-way valve (19) is connected with cooling water inlet pipe (20) and outlet (43).
A kind of Ship Power Equipment exhaust gas cleaning system the most according to claim 1, is characterized in that: wash
Wash the second circulating pump (13) that the upper setting of liquid circulation line (11) is in parallel with the first circulating pump (12).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510082845.4A CN104689699B (en) | 2015-02-16 | 2015-02-16 | A kind of Ship Power Equipment exhaust gas cleaning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510082845.4A CN104689699B (en) | 2015-02-16 | 2015-02-16 | A kind of Ship Power Equipment exhaust gas cleaning system |
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| CN104689699A CN104689699A (en) | 2015-06-10 |
| CN104689699B true CN104689699B (en) | 2016-11-23 |
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| EP3713656B1 (en) * | 2017-11-21 | 2021-07-21 | Wärtsilä Finland Oy | A method of installing an exhaust gas scrubber system of a power plant in a marine vessel and an exhaust gas scrubber system for wet scrubbing of exhaust gas of a power plant in a marine vessel |
| CN110508038B (en) * | 2019-08-09 | 2024-03-12 | 浙江省天正设计工程有限公司 | Method and device for continuous liquid-solid separation of sulfuric acid solution containing imine series products |
| CN111330411A (en) * | 2020-03-11 | 2020-06-26 | 青岛双瑞海洋环境工程股份有限公司 | Control method of open-loop ship exhaust gas desulfurization system |
| JP6849849B1 (en) * | 2020-09-08 | 2021-03-31 | 株式会社三井Ｅ＆Ｓマシナリー | Cleaning and wastewater treatment equipment for marine exhaust gas |
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| CN102527219B (en) * | 2012-01-09 | 2014-07-16 | 湖南省中机环保能源科技工程有限公司 | Smoke gas wet method sulfur removal and dust removal integral treatment system |
| JP6049499B2 (en) * | 2013-02-26 | 2016-12-21 | 三菱重工業株式会社 | Exhaust gas treatment device for internal combustion engine |
| CN103331093B (en) * | 2013-06-26 | 2015-04-08 | 哈尔滨工程大学 | Device for washing and desulfurating waste gas of marine diesel engine |
| CN204543955U (en) * | 2015-02-16 | 2015-08-12 | 哈尔滨工程大学 | A kind of Ship Power Equipment exhaust gas cleaning system |
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20150610 Assignee: Heideway Technology Group (Qingdao) Co., Ltd. Assignor: Harbin Engineering Univ. Contract record no.: 2019370010010 Denomination of invention: Exhaust gas scrubbing system of ship power device Granted publication date: 20161123 License type: Common License Record date: 20190605 |
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