CN108415265A - Marine exhaust denitration functional simulation analogue system - Google Patents
Marine exhaust denitration functional simulation analogue system Download PDFInfo
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- CN108415265A CN108415265A CN201810077649.1A CN201810077649A CN108415265A CN 108415265 A CN108415265 A CN 108415265A CN 201810077649 A CN201810077649 A CN 201810077649A CN 108415265 A CN108415265 A CN 108415265A
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- valve
- marine exhaust
- urea
- compressed air
- low speed
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B17/00—Systems involving the use of models or simulators of said systems
- G05B17/02—Systems involving the use of models or simulators of said systems electric
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The invention discloses a kind of marine exhaust denitration functional simulation analogue systems, including touch screen, PLC, relay, button switch and indicator light, the hardware signal of marine exhaust denitration device, the logical relation between realizing various hardware signals with the software programming of PLC are simulated with the 4 20mA input/output modules of the On-off signal output module of PLC, relay, PLC；For different marine exhaust denitration devices, design corresponding Simulation Control output signal, it realizes to the Work condition analogue in marine exhaust denitration whole process, it can be by changing analog parameter, debug marine exhaust denitration control system, confirm whether the response of marine exhaust denitration control system is correct, reduces the field adjustable time of marine exhaust denitration control system.The training and study that can be used for beginner, it is big to solve traditional training difficulty, it is time-consuming and laborious the shortcomings of, reduce the training cost of marine exhaust denitration control system.
Description
Technical field
The present invention relates to a kind of marine exhaust denitration functional simulation analogue systems, belong to ship domain.
Background technology
Existing marine exhaust processing system mostly uses selective catalytic reduction to the removal of NOx in marine exhaust（SCR）
Mode, which, which needs to install, is placed with the reactor of catalyst, and volume is larger, in addition also needs to inject quantitative urea liquid
Or ammonium hydroxide, there are investment and operation costs, and high, ammonia is excessively leaked in air pollutes, reaction temperature window is relatively narrow, catalysis
The problems such as agent is poisoned.
Marine exhaust denitrating system all uses automation control at present, can be to the whole of marine exhaust denitration by host computer
A process is monitored, and operator only needs to control whole system in host computer operation, realizes the automatic of system
Change operation.
The debugging of traditional marine exhaust denitrating system generally require start marine main engine, time-consuming and laborious excessive fuel consumption, if
Real ship debugging, it is necessary to be debugged during ship's navigation, this undoubtedly causes great inconvenience to system debug, also has
Certain risk.In addition, since the debugging of marine exhaust denitrating system has to operation marine main engine, so also giving operation training
Instruction causes great inconvenience, therefore designs and develops a kind of marine exhaust denitration functional simulation analogue system and seem extremely important.
Invention content
The purpose of the present invention is establishing a kind of marine exhaust denitration functional simulation analogue system, which may be implemented to ship
Work condition analogue in oceangoing ship exhaust gas denitration whole process, you can for debugging marine exhaust denitrating system, it can also be used to train, make behaviour
Author and system debug beginner to system intuitively learn and analyze.
To achieve the above object, the technical solution used in the present invention is：A kind of marine exhaust denitration functional simulation emulation
System, which is characterized in that including touch screen, PLC, relay, button switch and indicator light, exported with the On-off signal of PLC
Module, relay, PLC 4-20mA input/output modules simulation marine exhaust denitration device hardware signal, with the software of PLC
The logical relation between various hardware signals is realized in programming；For different marine exhaust denitration devices, corresponding emulation is designed
Control output signal；
The marine exhaust denitration device simulated includes：Urea storage tank liquid level gauge, urea storage tank temperature sensor, urea storage tank go out
Mouth valve, flushing valve, urea addition pump, urea pipe pressure sensor, urea pipe flow sensor, urea spray gun compressed air
Valve, urea spray gun compressed air require switch, air pipeline compressed air valve, air pipeline compressed air require switch, soot blowing
Pipeline compressed air valve, soot blowing pipeline compressed air pressure sensor, reactor inlet pressure sensor, reactor inlet temperature
Sensor, reactor differential pressure pickup, reactor outlet pressure sensor, reactor outlet temperature sensor, nitrogen oxides are dense
It is useless to spend sensor, oxygen concentration sensor, marine exhaust denitrating system outlet valve, marine exhaust denitrating system inlet valve, ship
Gas denitrating system by-passing valve, MDT low speed ship host communications signal, WINGD low speed ship host communications signal, middling speed ship master
Machine communication signal, urea liquid, compressed air, mixer, reactor, marine exhaust, flushing water, heating tape, above equipment are pressed
According to the facts the connection relation of border marine exhaust denitration device is simulated.
It is an advantage of the invention that：
1, a kind of marine exhaust denitration functional simulation analogue system is established, is realized in marine exhaust denitration whole process
Work condition analogue can be debugged marine exhaust denitration control system, confirm marine exhaust denitration control system by changing analog parameter
Response it is whether correct, reduce marine exhaust denitration control system the field adjustable time.
2, the training and study that can be used for beginner, it is big to solve traditional training difficulty, it is time-consuming and laborious the shortcomings of,
Reduce the training cost of marine exhaust denitration control system.
3, by marine exhaust denitration simulation system can simulate live physical device institute it is functional, can be by repairing
Change the systematic parameter of marine exhaust denitration simulation system, the different conditions of analog machine operation improve start-up couple
The resolution ability of alarm failure improves the result of training to start-up.
Description of the drawings
Fig. 1 is that the system of the present invention constitutes total figure and the structural relation between marine exhaust denitration control system；
Fig. 2 is the overall structure diagram for the marine exhaust denitrating system that the present invention is simulated.
Specific implementation mode
Referring to Fig. 1 and Fig. 2, a kind of marine exhaust denitration functional simulation analogue system of the present invention, which is characterized in that including touching
Screen, PLC, relay, button switch and indicator light are touched, with the On-off signal output module of PLC, the 4- of relay and PLC
20mA input/output modules simulate the hardware signal of marine exhaust denitration device, realize that various hardware are believed with the software programming of PLC
Logical relation between number；For different marine exhaust denitration devices, corresponding Simulation Control output signal is designed；
The marine exhaust denitration device simulated includes：Urea storage tank liquid level gauge 1, urea storage tank temperature sensor 2, urea storage tank
Outlet valve 3, flushing valve 4, urea addition pump 5, urea pipe pressure sensor 6, urea pipe flow sensor 7, urea spray gun
Compressed air valve 8, urea spray gun compressed air require switch 9, air pipeline compressed air valve 10, air pipeline compressed air stream
Measure switch 11, soot blowing pipeline compressed air valve 12, soot blowing pipeline compressed air pressure sensor 13, reactor inlet pressure sensing
Device 14, reactor inlet temperature sensor 15, reactor differential pressure pickup 16, reactor outlet pressure sensor 17, reactor
Outlet temperature sensor 18, nox concentration sensor 19, oxygen concentration sensor 20, marine exhaust denitrating system outlet valve
21, marine exhaust denitrating system inlet valve 22, marine exhaust denitrating system by-passing valve 23, MDT low speed ship host communication signals
24, WINGD low speed ship host communication signal 25, middling speed ship host communication signal 26, urea liquid 27, compressed air 28,
Mixer 29, reactor 30, marine exhaust 31, flushing water 32, heating tape 33, above equipment are set according to practical marine exhaust denitration
Standby connection relation is simulated.
Marine exhaust denitration includes mainly following operating mode process：
Urea adding procedure：According to MDT low speed ship host communications signal 24 or WINGD low speed ship host communications signal 25,
Or middling speed ship host communication signal 26, urea additive amount is calculated, then urea liquid 27 is via urea storage tank outlet valve 3 and urine
Element addition pump 5, while compressed air 28 mixed with urea liquid 27 via urea spray gun compressed air valve 8 after injecting mixer
29, reactor 30 is entered after being mixed with marine exhaust 31.
Flushing process：According to MDT low speed ship host communications signal 24 or WINGD low speed ship host communication signals
25 or middling speed ship host communication signal 26, then flushing water 32 is via flushing valve and urea addition pump 5, while compressed air
28 mixed with flushing water 32 via urea spray gun compressed air valve 8 after injecting mixer 29.
Soot blowing process：According to MDT low speed ship host communications signal 24 or WINGD low speed ship host communications signal 25,
Or middling speed ship host communication signal 26, then compressed air 28 is via the entrance reactor 30 of soot blowing pipeline compressed air valve 11.
Ventilation process：According to MDT low speed ship host communications signal 24 or WINGD low speed ship host communications signal 25,
Or middling speed ship host communication signal 26, then compressed air 28 is via the entrance reactor 30 of air pipeline compressed air valve 10.
Heat tracing process：According to MDT low speed ship host communications signal 24 or WINGD low speed ship host communications signal 25,
Or middling speed ship host communication signal 26, the then power supply of heating tape 33 are heated to reactor 30.
Marine exhaust denitration simulation system for valve type, including：Urea storage tank outlet valve 3, flushing valve 4, urea
Spray gun compressed air valve 8, air pipeline compressed air valve 10, soot blowing pipeline compressed air valve 12, marine exhaust denitrating system go out
Mouth valve 21, marine exhaust denitrating system inlet valve 22, marine exhaust denitrating system by-passing valve 23, are provided with 6 parameters, including valve
When door opens order, valve shutdown command, valve location opens feedback, valve location closes feedback, valve open time, valve are closed
Between.
Marine exhaust denitration simulation system is for sensor class, including urea storage tank liquid level gauge 1, urea storage tank temperature
Sensor 2, urea pipe pressure sensor 6, urea pipe flow sensor 7, soot blowing pipeline compressed air pressure sensor 13,
Reactor inlet pressure sensor 14, reactor inlet temperature sensor 15, reactor differential pressure pickup 16, reactor outlet pressure
Force snesor 17, reactor outlet temperature sensor 18, nox concentration sensor 19, oxygen concentration sensor 20, setting
There are 5 parameters, including high alarming value, high alarming value, low alarming value, low alarming value, break alarm.
Marine exhaust denitration simulation system for communication class, including MDT low speed ship host communications signal 24,
WINGD low speed ship host communications signal 25, middling speed ship host communication signal 26, are provided with break alarm.
Claims (5)
1. a kind of marine exhaust denitration functional simulation analogue system, which is characterized in that including touch screen, PLC, relay, button
Switch and indicator light are simulated with the 4-20mA input/output modules of the On-off signal output module of PLC, relay and PLC
The hardware signal of marine exhaust denitration device, the logical relation between realizing various hardware signals with the software programming of PLC；For
Different marine exhaust denitration devices designs corresponding Simulation Control output signal；
The marine exhaust denitration device simulated includes：Urea storage tank liquid level gauge 1, urea storage tank temperature sensor 2, urea storage tank
Outlet valve 3, flushing valve 4, urea addition pump 5, urea pipe pressure sensor 6, urea pipe flow sensor 7, urea spray gun
Compressed air valve 8, urea spray gun compressed air require switch 9, air pipeline compressed air valve 10, air pipeline compressed air stream
Measure switch 11, soot blowing pipeline compressed air valve 12, soot blowing pipeline compressed air pressure sensor 13, reactor inlet pressure sensing
Device 14, reactor inlet temperature sensor 15, reactor differential pressure pickup 16, reactor outlet pressure sensor 17, reactor
Outlet temperature sensor 18, nox concentration sensor 19, oxygen concentration sensor 20, marine exhaust denitrating system outlet valve
21, marine exhaust denitrating system inlet valve 22, marine exhaust denitrating system by-passing valve 23, MDT low speed ship host communication signals
24, WINGD low speed ship host communication signal 25, middling speed ship host communication signal 26, urea liquid 27, compressed air 28,
Mixer 29, reactor 30, marine exhaust 31, flushing water 32, heating tape 33, above equipment are set according to practical marine exhaust denitration
Standby connection relation is simulated.
2. marine exhaust denitration functional simulation analogue system according to claim 1, which is characterized in that useless to the ship
The analog parameter of valve type in gas denitration device, including valve opening order, valve shutdown command, valve location open feedback,
Valve location closes feedback, valve open time and valve shut-in time；The equipment of the valve type includes：Urea storage tank outlet valve 3,
Flushing valve 4, urea spray gun compressed air valve 8, air pipeline compressed air valve 10, soot blowing pipeline compressed air valve 12, ship are useless
Qi exhaustion nitre system outlet valve 21, marine exhaust denitrating system inlet valve 22 and marine exhaust denitrating system by-passing valve 23.
3. marine exhaust denitration functional simulation analogue system according to claim 1, which is characterized in that useless to the ship
The analog parameter of sensor class in gas denitration device, including high alarming value, high alarming value, low alarming value, low alarming value
And break alarm；The equipment of the sensor class includes：Urea storage tank liquid level gauge 1, urea storage tank temperature sensor 2, urea pipe
Pressure sensor 6, urea pipe flow sensor 7, soot blowing pipeline compressed air pressure sensor 13, reactor inlet pressure pass
Sensor 14, reactor inlet temperature sensor 15, reactor differential pressure pickup 16, reactor outlet pressure sensor 17, reaction
Device outlet temperature sensor 18, nox concentration sensor 19, oxygen concentration sensor 20.
4. marine exhaust denitration functional simulation analogue system according to claim 1, which is characterized in that useless to the ship
The analog parameter of communication class in gas denitration device is break alarm, and the equipment of the communication class includes：MDT low speed marine main engines are logical
Interrogate signal 24, WINGD low speed ship host communications signal 25 and middling speed ship host communication signal 26.
5. marine exhaust denitration functional simulation analogue system according to claim 1, which is characterized in that the ship of simulation is useless
The course of work of gas denitration device includes：
Urea adding procedure：According to MDT low speed ship host communications signal 24 or WINGD low speed ship host communications signal 25,
Or middling speed ship host communication signal 26, urea additive amount is calculated, then urea liquid 27 is via urea storage tank outlet valve 3 and urine
Element addition pump 5, while compressed air 28 mixed with urea liquid 27 via urea spray gun compressed air valve 8 after injecting mixer
29, reactor 30 is entered after being mixed with marine exhaust 31；
Flushing process：According to MDT low speed ship host communications signal 24 or WINGD low speed ship host communications signal 25, or
Middling speed ship host communication signal 26, then flushing water 32 via flushing valve and urea addition pump 5, while compressed air 28 via
Injecting mixer 29 after urea spray gun compressed air valve 8 is mixed with flushing water 32；
Soot blowing process：According to MDT low speed ship host communications signal 24 or WINGD low speed ship host communications signal 25, or in
Fast marine main engine communication signal 26, then compressed air 28 is via the entrance reactor 30 of soot blowing pipeline compressed air valve 11；
Ventilation process：According to MDT low speed ship host communications signal 24 or WINGD low speed ship host communications signal 25, or in
Fast marine main engine communication signal 26, then compressed air 28 is via the entrance reactor 30 of air pipeline compressed air valve 10；
Heat tracing process：According to MDT low speed ship host communications signal 24 or WINGD low speed ship host communications signal 25, or in
Fast marine main engine communication signal 26, the then power supply of heating tape 33, is heated to reactor 30.
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| CN201810077649.1A CN108415265B (en) | 2018-01-26 | 2018-01-26 | Ship exhaust gas denitration function analog simulation system |
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| CN201810077649.1A CN108415265B (en) | 2018-01-26 | 2018-01-26 | Ship exhaust gas denitration function analog simulation system |
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| CN108415265B CN108415265B (en) | 2021-04-30 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111489605A (en) * | 2020-04-21 | 2020-08-04 | 大唐环境产业集团股份有限公司 | Ammonia spraying optimization control simulation system based on Simulink and WinCC |
| CN112691547A (en) * | 2021-01-11 | 2021-04-23 | 中国船舶重工集团公司第七一一研究所 | Tail gas denitration control system based on programmable logic controller |
| CN116392938A (en) * | 2023-06-07 | 2023-07-07 | 张家港市锦明环保工程装备有限公司 | Waste gas denitration reaction device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111489605A (en) * | 2020-04-21 | 2020-08-04 | 大唐环境产业集团股份有限公司 | Ammonia spraying optimization control simulation system based on Simulink and WinCC |
| CN112691547A (en) * | 2021-01-11 | 2021-04-23 | 中国船舶重工集团公司第七一一研究所 | Tail gas denitration control system based on programmable logic controller |
| CN116392938A (en) * | 2023-06-07 | 2023-07-07 | 张家港市锦明环保工程装备有限公司 | Waste gas denitration reaction device |
| CN116392938B (en) * | 2023-06-07 | 2023-08-29 | 张家港市锦明环保工程装备有限公司 | Waste gas denitration reaction process |
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