CN111948169A - Ship exhaust gas online monitoring and analyzing system - Google Patents
Ship exhaust gas online monitoring and analyzing system Download PDFInfo
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- CN111948169A CN111948169A CN202010533246.0A CN202010533246A CN111948169A CN 111948169 A CN111948169 A CN 111948169A CN 202010533246 A CN202010533246 A CN 202010533246A CN 111948169 A CN111948169 A CN 111948169A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 239000007789 gas Substances 0.000 claims abstract description 47
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000003546 flue gas Substances 0.000 claims abstract description 31
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 20
- 239000010457 zeolite Substances 0.000 claims abstract description 20
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 19
- 230000023556 desulfurization Effects 0.000 claims abstract description 19
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002912 waste gas Substances 0.000 claims abstract description 19
- 238000010828 elution Methods 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 9
- 239000011593 sulfur Substances 0.000 claims abstract description 9
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims description 35
- 238000004868 gas analysis Methods 0.000 claims description 27
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 238000005070 sampling Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-ZSJDYOACSA-N heavy water Substances [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
- G01N21/3518—Devices using gas filter correlation techniques; Devices using gas pressure modulation techniques
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0037—NOx
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/004—CO or CO2
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0042—SO2 or SO3
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
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- Sampling And Sample Adjustment (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an online monitoring and analyzing system for ship exhaust gas, which comprises an exhaust gas treatment system and an exhaust gas real-time monitoring system, wherein the exhaust gas treatment system comprises a coarse filtering device, a fine filtering device, a zeolite denitrification and desulfurization device and an elution device which are sequentially arranged along the circulation direction of the exhaust gas; the purification mode combining the flue gas treatment process, coarse filtration and fine filtration, dust removal, sulfur removal and nitrogen removal is adopted, the waste gas detection is carried out by stage extraction and sampling, the flue gas treatment process is controlled by on-line continuous detection, the performance is stable and reliable, and the maintenance workload is small.
Description
Technical Field
The invention relates to the technical field of exhaust gas monitoring, in particular to an online monitoring and analyzing system for ship exhaust gas.
Background
The emission of harmful substances in ship exhaust gas is a main source causing air pollution, and with the increasing importance of environmental protection problems, the reduction of the emission of harmful substances becomes an important development direction of ship exhaust gas in the world today. Therefore, the pollution caused by the exhaust gas of ships is more and more regarded by the international society. Due to the characteristics of ship exhaust gas, the existing mature land exhaust gas treatment equipment cannot be directly applied to ships. Mainly characterized by small ship smoke scale, low temperature, large exhaust fluctuation, unburned oil and carbon black contained in the smoke and the like, and provides special requirements for treatment equipment. The treatment equipment must be compact, occupy small space, light in weight, the reactant is easy to store, and the power consumption and electricity consumption of the treatment equipment are low. The premise of controlling the pollutant emission in the ship flue gas is to know the components and the content of pollutants, the ship flue gas emission online analysis system can perform real-time online measurement, the detection result can timely find the problems in the ship flue gas emission process so as to take measures in time to reduce the occurrence of serious pollution events, but at present, the exhaust gas monitoring is only performed before the final emission, and if the emission meets the emission standard, the emission is performed, and if the emission does not meet the standard, the treatment is performed again.
Disclosure of Invention
The invention aims to provide an online monitoring and analyzing system for ship exhaust gas aiming at the defects in the prior art.
The technical scheme for solving the problems comprises the following steps: an online monitoring and analyzing system for ship exhaust gas comprises an exhaust gas treatment system and an exhaust gas real-time monitoring system, wherein the exhaust gas treatment system comprises a coarse filter device, a fine filter, a zeolite denitrification and desulfurization device and an elution device which are sequentially arranged along the exhaust gas flowing direction, the coarse filter device is directly connected with the fine filter through a first exhaust pipe, the fine filter is connected with a second exhaust pipe, the zeolite denitrification and desulfurization device is connected with a third exhaust pipe, the elution device is connected with a fourth exhaust pipe, the second exhaust pipe is connected with a second inlet end of the fine filter through a first pipeline, a control valve V1 is arranged on the first pipeline, the second exhaust pipe is connected with the first inlet end of the zeolite denitrification and desulfurization device through a second pipeline, a control valve V2 is arranged on the second pipeline, the third exhaust pipe is connected with the second inlet end of the zeolite denitrification and desulfurization device through a third pipeline, the third pipeline is provided with a control valve V3, the third exhaust pipe is connected with the first air inlet end of the elution device through a fourth pipeline, the fourth pipeline is provided with a control valve V4, the fourth exhaust pipe is connected with the second air inlet end of the elution device through a fifth pipeline, the fifth pipeline is provided with a control valve V5, and the outer end of the fourth exhaust pipe is provided with a control valve V6;
the real-time waste gas monitoring system comprises a controller, a first smoke gas collector arranged on a second exhaust pipe, a second smoke gas collector arranged on a third exhaust pipe, and a third smoke gas collector arranged on a fourth pipeline, wherein the first smoke gas collector is connected with a first smoke gas analysis device, the second smoke gas collector is connected with a second smoke gas analysis device, the third smoke gas collector is connected with a third smoke gas analysis device, and the first smoke gas analysis device, the second smoke gas analysis device and the third smoke gas analysis device are respectively connected with the controller;
and the third air inlet end of the zeolite denitrification and desulfurization device is connected with the methane tank through a sixth pipeline.
Further, the first flue gas analysis device is a Bosch Smoke intensity measuring instrument.
Further, the second flue gas analysis device comprises an infrared gas analyzer and a sulfur detector.
Further, the third flue gas analysis device comprises a sulfur meter and a filter smoke intensity measuring instrument.
Further, the control valves V1, V2, V3, V4, V5 and V6 are respectively connected to the controller.
Furthermore, a flow meter T1 is arranged on the sixth pipeline, a flow meter T2 is arranged on the second pipeline, and the flow meters T1 and T2 are respectively connected to the controller.
Further, the bottom of the coarse filtering device is connected with a first ash discharge groove;
furthermore, the bottom of the fine filter is connected with a second ash discharge groove.
The invention has the following beneficial effects:
the invention provides an online monitoring and analyzing system for ship exhaust gas, which has a compact structure and occupies a small space; the purification mode combining the flue gas treatment process, coarse filtration and fine filtration, dust removal, sulfur removal and nitrogen removal is adopted, the waste gas detection is carried out by stage extraction and sampling, the flue gas treatment process is controlled by on-line continuous detection, the performance is stable and reliable, and the maintenance workload is small.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1-a coarse filtration device; 2-fine filter; 3-zeolite denitrification and desulfurization device; 4-an elution device; 5-a first exhaust pipe; 6-a second exhaust pipe; 7-a third exhaust pipe; 8-a fourth exhaust pipe; 9-a first conduit; 10-a second conduit; 11-a third conduit; 12-a fourth conduit; 13-a fifth pipeline; 14-a controller; 15-a first flue gas collector; 16-a second flue gas collector; 17-a third flue gas collector; an 18-methane tank; 19-Bosch Smoke intensity Meter; 20-infrared gas analyzer; 21-sulfur detector; 22-filter smoke intensity measuring instrument; 23-flow meter T1; 24-flow meter T2; 25-a first ash chute; 26-second ash chute.
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in the figure, the ship waste gas on-line monitoring and analyzing system comprises a waste gas treatment system and a waste gas real-time monitoring system, wherein the waste gas treatment system comprises a coarse filter device, a fine filter, a zeolite denitrification and desulfurization device and an elution device which are sequentially arranged along the waste gas flowing direction, the bottom of the coarse filter device is connected with a first ash discharge groove, the bottom of the fine filter device is connected with a second ash discharge groove, the coarse filter device is directly connected with the fine filter through a first exhaust pipe, the outlet of the fine filter device is connected with a second exhaust pipe, the outlet of the zeolite denitrification and desulfurization device is connected with a third exhaust pipe, the outlet of the elution device is connected with a fourth exhaust pipe, the second exhaust pipe is connected with the second inlet end of the fine filter through a first pipeline, a control valve V1 is arranged on the first pipeline, the second exhaust pipe is connected with the first inlet end of the zeolite denitrification, the second pipeline is provided with a control valve V2, the third exhaust pipe is connected with the second gas inlet end of the zeolite denitrification and desulfurization device through a third pipeline, the third pipeline is provided with a control valve V3, the third exhaust pipe is connected with the first gas inlet end of the elution device through a fourth pipeline, the fourth pipeline is provided with a control valve V4, the fourth exhaust pipe is connected with the second gas inlet end of the elution device through a fifth pipeline, the fifth pipeline is provided with a control valve V5, and the outer end of the fourth exhaust pipe is provided with a control valve V6;
the reactions generated in the zeolite denitrification and desulfurization device comprise 2 NO-N2 + O2, 2NO + O2-2 NO2, 2SO2+ O2-2 SO3, CH4+2O 2-CO 2+2H2O, CH4+2NO 2-N2 + CO2+2H 2O; the reaction in the elution apparatus was) SO3+ OH ═ H + + SO42 —, CO2+ OH ═ HCO3 —, HCO3 — (H + + CO32 —;
the real-time waste gas monitoring system comprises a controller, a first flue gas collector arranged on a second exhaust pipe, a second flue gas collector arranged on a third exhaust pipe, and a third flue gas collector arranged on a fourth pipeline, wherein the first flue gas collector is connected with a first flue gas analysis device, the second flue gas collector is connected with a second flue gas analysis device, the third flue gas collector is connected with a third flue gas analysis device, the first flue gas analysis device, the second flue gas analysis device and the third flue gas analysis device are respectively connected with the controller, the first flue gas analysis device is a Person Smoke intensity measuring instrument, the content of smoke particles of waste gas discharged from a fine filter is monitored, if the content exceeds the standard, the smoke particles are returned to the fine filter for fine filtration again, the second flue gas analysis device comprises an infrared gas analyzer and a sulfur detector, and the concentrations of SO2 and NO of the waste gas discharged from the zeolite denitrification and desulfurization device are monitored, if the content exceeds the standard, returning to the zeolite denitrification and desulfurization device for re-reaction, wherein the third flue gas analysis device comprises a sulfur meter and a filter type smoke intensity measuring instrument, monitoring the concentrations of SO3 and CO2 of the waste gas discharged from the elution device, and if the content exceeds the standard, returning to the elution device for re-reaction;
the control valves V1, V2, V3, V4, V5 and V6 are respectively connected to the controller;
the third air inlet end of the zeolite denitrification and desulfurization device is connected with the methane tank through a sixth pipeline, the sixth pipeline is provided with a flow meter T1, the second pipeline is provided with a flow meter T2, the flow meters T1 and T2 are respectively connected to the controllers, and the input amount of methane is controlled according to the discharge amount of waste gas.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.
Claims (8)
1. The utility model provides a boats and ships waste gas on-line monitoring analytic system which characterized in that: the system comprises a waste gas treatment system and a waste gas real-time monitoring system, wherein the waste gas treatment system comprises a coarse filtering device, a fine filter, a zeolite denitrification and desulfurization device and an elution device which are sequentially arranged along the waste gas flowing direction, the coarse filtering device is directly connected with the fine filter through a first exhaust pipe, the fine filter is connected with a second exhaust pipe in an outlet way, the zeolite denitrification and desulfurization device is connected with a third exhaust pipe in an outlet way, the elution device is connected with a fourth exhaust pipe in an outlet way, the second exhaust pipe is connected with a second air inlet end of the fine filter through a first pipeline, a control valve V1 is arranged on the first pipeline, the second exhaust pipe is connected with the first air inlet end of the zeolite denitrification and desulfurization device through a second pipeline, a control valve V2 is arranged on the second pipeline, the third exhaust pipe is connected with the second air inlet end of the zeolite denitrification and desulfurization device through a third pipeline, and a control valve V3, the third exhaust pipe is connected with the first air inlet end of the elution device through a fourth pipeline, a control valve V4 is arranged on the fourth pipeline, the fourth exhaust pipe is connected with the second air inlet end of the elution device through a fifth pipeline, a control valve V5 is arranged on the fifth pipeline, and a control valve V6 is arranged at the outer end of the fourth exhaust pipe;
the real-time waste gas monitoring system comprises a controller, a first smoke gas collector arranged on a second exhaust pipe, a second smoke gas collector arranged on a third exhaust pipe, and a third smoke gas collector arranged on a fourth pipeline, wherein the first smoke gas collector is connected with a first smoke gas analysis device, the second smoke gas collector is connected with a second smoke gas analysis device, the third smoke gas collector is connected with a third smoke gas analysis device, and the first smoke gas analysis device, the second smoke gas analysis device and the third smoke gas analysis device are respectively connected with the controller;
and the third air inlet end of the zeolite denitrification and desulfurization device is connected with the methane tank through a sixth pipeline.
2. The on-line monitoring and analyzing system for the ship exhaust gas as claimed in claim 1, wherein: the first flue gas analysis device is a Bosch Smoke intensity measuring instrument.
3. The on-line monitoring and analyzing system for the ship exhaust gas as claimed in claim 1, wherein: the second flue gas analysis device comprises an infrared gas analyzer and a sulfur detector.
4. The on-line monitoring and analyzing system for the ship exhaust gas as claimed in claim 1, wherein: the third flue gas analysis device comprises a sulfur meter and a filtering smoke intensity measuring instrument.
5. The on-line monitoring and analyzing system for the ship exhaust gas as claimed in claim 1, wherein: the control valves V1, V2, V3, V4, V5 and V6 are respectively connected to the controller.
6. The on-line monitoring and analyzing system for the ship exhaust gas as claimed in claim 1, wherein: and a flow instrument T1 is arranged on the sixth pipeline, a flow instrument T2 is arranged on the second pipeline, and the flow instruments T1 and T2 are respectively connected to the controller.
7. The on-line monitoring and analyzing system for the ship exhaust gas as claimed in claim 1, wherein: the bottom of the coarse filtering device is connected with a first ash discharging groove.
8. The on-line monitoring and analyzing system for the ship exhaust gas as claimed in claim 1 or 7, wherein: and the bottom of the fine filter is connected with a second ash discharge groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010533246.0A CN111948169B (en) | 2020-06-12 | 2020-06-12 | Ship exhaust gas online monitoring and analyzing system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010533246.0A CN111948169B (en) | 2020-06-12 | 2020-06-12 | Ship exhaust gas online monitoring and analyzing system |
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| CN111948169A true CN111948169A (en) | 2020-11-17 |
| CN111948169B CN111948169B (en) | 2023-11-03 |
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