CN111948169B - Ship exhaust gas online monitoring and analyzing system - Google Patents
Ship exhaust gas online monitoring and analyzing system Download PDFInfo
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- CN111948169B CN111948169B CN202010533246.0A CN202010533246A CN111948169B CN 111948169 B CN111948169 B CN 111948169B CN 202010533246 A CN202010533246 A CN 202010533246A CN 111948169 B CN111948169 B CN 111948169B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 54
- 239000003546 flue gas Substances 0.000 claims abstract description 54
- 239000007789 gas Substances 0.000 claims abstract description 37
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 20
- 238000010828 elution Methods 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
- 238000001914 filtration Methods 0.000 claims abstract description 18
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 9
- 239000011593 sulfur Substances 0.000 claims abstract description 9
- 239000002912 waste gas Substances 0.000 claims abstract description 6
- 238000004868 gas analysis Methods 0.000 claims description 26
- 239000000779 smoke Substances 0.000 claims description 13
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 9
- 238000004458 analytical method Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 6
- 238000001514 detection 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
- 238000005259 measurement Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000006243 chemical reaction Methods 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
- 231100000719 pollutant Toxicity 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
Classifications
-
- 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)
- Spectroscopy & Molecular Physics (AREA)
- Sampling And Sample Adjustment (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a ship exhaust gas online monitoring and analyzing system, 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 filter, a zeolite denitrification and desulfurization device and an elution device which are sequentially arranged along the exhaust gas flowing direction; the flue gas treatment process, the coarse filtration and the fine filtration, the dust removal and the sulfur removal as well as the nitrogen removal are combined in a purification mode, the stage extraction and the sampling are adopted for carrying out the waste gas detection, the flue gas treatment process is controlled by the online 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 waste gas monitoring, in particular to an online monitoring and analyzing system for ship waste gas.
Background
Emission of harmful substances in ship exhaust gas is a main source causing atmospheric pollution, and as the importance of environmental protection problems increases, reduction of emission of harmful substances becomes an important development direction of ship exhaust gas in the world today. Therefore, pollution caused by ship exhaust gas is increasingly receiving attention from 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. The method is mainly characterized by small scale of ship flue gas, low temperature, large exhaust fluctuation, unburnt oil and carbon black in the flue gas, and the like, and has specific requirements on treatment equipment. The treatment equipment has to be compact, occupies small space, has light weight, is easy to store reactants, and has low energy consumption and electricity consumption value. The premise of controlling the emission of pollutants in the ship smoke is to know the components and the content of the pollutants, and the ship smoke emission online analysis system can perform real-time online measurement, so that the detection result can timely find the problems in the ship smoke emission process, so that measures can be taken timely to reduce the occurrence of serious pollution events, but the current exhaust gas monitoring is only performed before the final emission, and if the emission standard is met, the emission is performed, and if the emission standard is not met, 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 of the prior art.
The technical scheme for solving the problems is as follows: the ship exhaust gas online monitoring and analyzing system comprises an exhaust gas treatment system and an exhaust gas real-time monitoring system, wherein the exhaust gas treatment system comprises a coarse filtration 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 filtration device is directly connected with the fine filter through a first exhaust pipe, an outlet of the fine filter is connected with a second exhaust pipe, an outlet of the zeolite denitrification and desulfurization device is connected with a third exhaust pipe, an outlet of the elution device is connected with a fourth exhaust pipe, 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 a 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 a second air inlet end of the zeolite denitrification and desulfurization device through a third pipeline, the third exhaust pipe is connected with a first air inlet end of the elution device through a fourth pipeline, a control valve V4 is arranged on the fourth pipeline, the elution device is connected with a fifth air inlet end of the elution device through a fifth air inlet end of the elution device, and a control valve V6 is arranged on the fifth pipeline;
the 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, a third flue gas collector arranged on a fourth exhaust pipe, 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, and 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;
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 smoke analysis device is a Bosch smoke 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 type smoke measuring instrument.
Further, the control valves V1, V2, V3, V4, V5, V6 are respectively connected to the controller.
Further, 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;
further, the bottom of the fine filter is connected with a second ash discharge groove.
The invention has the beneficial effects that:
the invention provides an online monitoring and analyzing system for ship exhaust gas, which has compact structure and small occupied space; the flue gas treatment process, the coarse filtration and the fine filtration, the dust removal and the sulfur removal as well as the nitrogen removal are combined in a purification mode, the stage extraction and the sampling are adopted for carrying out the waste gas detection, the flue gas treatment process is controlled by the online continuous detection, the performance is stable and reliable, and the maintenance workload is small.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
in the figure: 1-a coarse filtration device; 2-fine filter; 3-zeolite denitrification and desulfurization device; 4-elution means; 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 pipe; 12-fourth pipe; 13-a fifth pipe; 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 measuring instrument; 20-an infrared gas analyzer; 21-a sulfur meter; 22-filtering smoke measuring instrument; 23-flow meter T1; 24-flow meter T2; 25-a first ash discharge groove; 26-a second ash chute.
Detailed Description
The invention is further described with reference to the drawings and detailed description.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication 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 in a specific case.
As shown in the figure, the ship exhaust gas online monitoring and analyzing system comprises an exhaust gas treatment system and an exhaust gas real-time monitoring system, wherein the exhaust gas treatment system comprises a coarse filtration 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 bottom of the coarse filtration device is connected with a first ash discharge groove, the bottom of the fine filter is connected with a second ash discharge groove, the coarse filtration device is directly connected with the fine filter through a first exhaust pipe, the outlet of the fine filter 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, the first inlet end of 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 exhaust pipe is provided with a control valve V3, the third exhaust pipe is connected with the elution device through a fourth pipeline, the fourth inlet end of the elution device is provided with a control valve V4, and the elution device is provided with a fifth valve V4 through a fifth pipeline, and the fifth inlet end of the elution device is provided with a control valve V5;
the reactions occurring within the zeolite denitrification desulfurization unit include 2no=n2+o2, 2no+o2=2no 2, 2so2+o2=2so3, ch4+2o2=co2+2h O, CH4+2no 2=n2+co2+2h2o; the reaction occurring in the elution device is) so3+oh—=h++ SO 42-, co2+oh—=hco3-, hco3—=h++ CO 32-;
the 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, a third flue gas collector arranged on a fourth exhaust pipe, 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 wave smoke tolerance measuring instrument, the content of flue gas particles discharged from a fine filter is monitored, if the content exceeds standard, the fine filter is returned, the second flue gas analysis device comprises an infrared gas analysis device and a sulfur measurement device, the SO2 and NO concentration of the flue gas discharged from a zeolite denitrification desulfurization device is monitored, if the content exceeds standard, the zeolite denitrification device is returned, the third flue gas analysis device comprises a sulfur measurement device and a filtration smoke tolerance measuring instrument, the SO3 and CO content discharged from an elution device is monitored, if the content exceeds standard, and the CO content in the fine filter is returned;
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 a methane tank through a sixth pipeline, a flow meter T1 is arranged on the sixth pipeline, a flow meter T2 is arranged on the second pipeline, the flow meters T1 and T2 are respectively connected with a controller, and the input amount of methane is controlled according to the emission amount of waste gas.
The present invention is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present invention without departing from the technical content of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a boats and ships waste gas on-line monitoring analysis system which characterized in that: the system comprises an exhaust gas treatment system and an exhaust gas real-time monitoring system, wherein the exhaust gas treatment system comprises a coarse filtration 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 filtration device is directly connected with the fine filter through a first exhaust pipe, the outlet of the fine filter 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 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 a 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 a second inlet end of the zeolite denitrification and desulfurization device through a third pipeline, the third exhaust pipe is connected with a first 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 a second inlet end of the elution device through a fifth pipeline, and a control valve V6 is arranged on the fifth pipeline;
the 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, a third flue gas collector arranged on a fourth exhaust pipe, 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, and 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 third air inlet end of the zeolite denitrification and desulfurization device is connected with a methane tank through a sixth pipeline;
the control valves V1, V2, V3, V4, V5 and V6 are respectively connected to the controller.
2. The on-line monitoring and analyzing system for ship exhaust gas according to claim 1, wherein: the first smoke analysis device is a Bosch smoke measuring instrument.
3. The on-line monitoring and analyzing system for ship exhaust gas according to 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 ship exhaust gas according to claim 1, wherein: the third flue gas analysis device comprises a sulfur meter and a filtering smoke measuring instrument.
5. The on-line monitoring and analyzing system for ship exhaust gas according to claim 1, wherein: the sixth pipeline is provided with a flow instrument T1, the second pipeline is provided with a flow instrument T2, and the flow instruments T1 and T2 are respectively connected with the controller.
6. The on-line monitoring and analyzing system for ship exhaust gas according to claim 1, wherein: the bottom of the coarse filtering device is connected with a first ash discharge groove.
7. The on-line monitoring and analyzing system for ship exhaust gas according to claim 1 or 6, wherein: the bottom of the fine filter is connected with a second ash discharge groove.
Priority Applications (1)
| 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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| 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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| Publication Number | Publication Date |
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| CN111948169A CN111948169A (en) | 2020-11-17 |
| CN111948169B true CN111948169B (en) | 2023-11-03 |
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