CN114100368A - Pretreatment system for testing black carbon emission of engine - Google Patents
Pretreatment system for testing black carbon emission of engine Download PDFInfo
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- CN114100368A CN114100368A CN202111447224.3A CN202111447224A CN114100368A CN 114100368 A CN114100368 A CN 114100368A CN 202111447224 A CN202111447224 A CN 202111447224A CN 114100368 A CN114100368 A CN 114100368A
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- 239000003738 black carbon Substances 0.000 title claims abstract description 54
- 238000012360 testing method Methods 0.000 title claims abstract description 41
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 58
- 230000023556 desulfurization Effects 0.000 claims abstract description 58
- 239000003054 catalyst Substances 0.000 claims abstract description 33
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 33
- 230000003647 oxidation Effects 0.000 claims abstract description 32
- 150000002894 organic compounds Chemical class 0.000 claims abstract description 9
- 150000003568 thioethers Chemical class 0.000 claims abstract description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 64
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 50
- 239000007789 gas Substances 0.000 claims description 36
- 238000010438 heat treatment Methods 0.000 claims description 25
- 229910052757 nitrogen Inorganic materials 0.000 claims description 25
- 230000003009 desulfurizing effect Effects 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 238000013028 emission testing Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 9
- 238000007865 diluting Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 238000005987 sulfurization reaction Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000001514 detection method Methods 0.000 abstract description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- 239000005751 Copper oxide Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
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-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/44—Organic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biomedical Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Immunology (AREA)
- Pathology (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Medicinal Chemistry (AREA)
- Testing Of Engines (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention belongs to the technical field of engine detection, and discloses a pretreatment system for an engine black carbon emission test, which comprises a reactor, an air inlet pipe and an air outlet pipe, wherein the reactor comprises a desulfurization adsorber and an oxidation catalyst, the desulfurization adsorber is used for removing sulfides in engine tail gas, the oxidation catalyst is used for removing organic compounds in the engine tail gas, and the air inlet pipe, the desulfurization adsorber, the oxidation catalyst and the air outlet pipe are sequentially communicated. The pretreatment system for the engine black carbon emission test effectively eliminates the influence of other components on the measurement of the black carbon concentration in the engine tail gas, so that the measurement of the black carbon concentration in the engine tail gas is more accurate.
Description
Technical Field
The invention relates to the technical field of engine detection, in particular to a pretreatment system for an engine black carbon emission test.
Background
At present, the international maritime organization pays more attention to the black carbon emission of ships, and the measurement research on the black carbon emission also pays more attention. The amount of black carbon emission can be obtained by measuring the content of black carbon in the exhaust pipe.
However, in the combustion process of the fuel of the marine engine, a large amount of particulate matters are generated, the particulate matters comprise a large amount of sulfate, water, semi-volatile organic compounds, ash and the like besides black carbon, and when the tail gas of the engine is directly put into a testing instrument for detection, the components bring certain deviation to the measurement of the black carbon.
Disclosure of Invention
The invention aims to provide a pretreatment system for an engine black carbon emission test, which can be used for pretreating engine tail gas to enable the components of the engine tail gas finally entering a test instrument to be relatively pure black carbon, so that the influence of other components on the measurement of the black carbon concentration in the engine tail gas is eliminated.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a pretreatment systems for test is discharged to engine black carbon, includes reactor, intake pipe and outlet duct, and the reactor includes desulfurization adsorber and oxidation catalyst converter, and the desulfurization adsorber is arranged in getting rid of the sulphide among the engine exhaust, and the oxidation catalyst converter is arranged in getting rid of the organic compound among the engine exhaust, and intake pipe, desulfurization adsorber, oxidation catalyst converter and outlet duct communicate in proper order.
Optionally, the reactor surface is coated with a first high temperature heating zone for heating the desulfurization adsorber and the oxidation catalyst.
Optionally, the air inlet pipe is coated with a second high-temperature heating belt, and the second high-temperature heating belt is used for heating the air inlet pipe.
Optionally, the desulfurization system further comprises a methane storage device, the methane storage device is communicated with the desulfurization adsorber, and methane in the methane storage device is used for reducing the desulfurizing agent in the desulfurization adsorber.
Optionally, the system further comprises a nitrogen storage device, the nitrogen storage device is communicated with the desulfurization adsorber, and nitrogen in the nitrogen storage device is used for preventing the methane from chemically reacting with other components.
Optionally, the methane storage device and the nitrogen storage device are both communicated with the desulfurization adsorber through a first pipeline, and a first valve is arranged on the first pipeline.
Optionally, a second valve is arranged on the air inlet pipe, the first end of the first pipeline is communicated with the air inlet pipe, and the first end of the air inlet pipe is arranged on the air inlet pipe between the second valve and the desulfurization adsorber.
Optionally, the exhaust gas treatment device further comprises a diluter, wherein the diluter is arranged on the exhaust pipe and is used for diluting the exhaust gas of the engine.
Optionally, the engine exhaust dilution device further comprises a compressed air device, wherein the compressed air device is communicated with the diluter and can discharge compressed air into the diluter to dilute the engine exhaust.
Optionally, the compressed air device is in communication with the diluter via a second conduit, the second conduit having a third valve disposed thereon.
Has the advantages that:
according to the pretreatment system for the engine black carbon emission test, provided by the invention, the engine tail gas enters the desulfurization absorber through the air inlet pipe, sulfides are removed in the desulfurization absorber, and then the engine tail gas enters the oxidation catalyst, after organic compounds are removed in the oxidation catalyst, the black carbon in the engine tail gas is relatively pure, and finally the engine tail gas is collected through the air outlet pipe and then is put into the test instrument for black carbon concentration test.
Drawings
FIG. 1 is a schematic diagram of a pretreatment system for engine black carbon emission testing provided by the present invention.
In the figure:
100. a reactor; 110. a desulfurization adsorber; 120. an oxidation catalyst; 130. a first high temperature heating zone;
210. an air inlet pipe; 211. a second valve; 220. a second high temperature heating zone;
300. an air outlet pipe; 310. a fourth valve;
410. a methane storage device; 420. a nitrogen storage device; 430. a first conduit; 431. a first valve; 510. a diluter; 520. a compressed air device; 530. a second conduit; 531. and a third valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
Referring to fig. 1, the embodiment provides a pretreatment system for an engine black carbon emission test, which includes a reactor 100, an air inlet pipe 210 and an air outlet pipe 300, wherein the reactor 100 includes a desulfurization adsorber 110 and an oxidation catalyst 120, the desulfurization adsorber 110 is used for removing sulfides from engine exhaust, the oxidation catalyst 120 is used for removing organic compounds from engine exhaust, and the air inlet pipe 210, the desulfurization adsorber 110, the oxidation catalyst 120 and the air outlet pipe 300 are sequentially communicated.
Engine tail gas gets into desulfurization adsorber 110 through intake pipe 210 to get into oxidation catalyst converter 120 after getting rid of the sulphide in desulfurization adsorber 110, engine tail gas gets rid of organic compound in oxidation catalyst converter 120 after, the black carbon in the engine tail gas is pure relatively, last engine tail gas is put into testing instrument and is carried out the concentration test of black carbon after outlet duct 300 is collected through the outlet duct, this a pretreatment systems for engine black carbon emission test can effectively eliminate the influence that other compositions produced the black carbon concentration measurement in the engine tail gas, make the black carbon concentration measurement in the engine tail gas more accurate.
Specifically, the desulfurization adsorber 110 is provided with a desulfurizing agent, and under the action of the desulfurizing agent, sulfides in the engine exhaust gas react with the desulfurizing agent, so as to achieve the purpose of removing sulfides in the engine exhaust gas. Further, the desulfurizing agent may be copper oxide or other desulfurizing reagents, which are not described in detail herein.
Specifically, the oxidation catalyst 120 is provided with a noble metal oxidation catalyst carrier, and organic compounds in the engine exhaust are oxidized into carbon dioxide and water, so as to remove the organic compounds in the engine exhaust. In addition, in the oxidation catalyst 120, the oxidation catalyst carrier of the noble metal serves as a catalyst to convert carbon monoxide and hydrocarbons in the engine exhaust gas into harmless water and carbon dioxide through an oxidation reaction.
Further, the reactor 100 is coated with a first high temperature heating zone 130, and the first high temperature heating zone 130 is used for heating the desulfurization adsorber 110 and the oxidation catalyst 120. In the present embodiment, after the desulfurization adsorber 110 and the oxidation catalyst 120 are heated to the desired operating temperature by the first high-temperature heating zone 130, the engine exhaust gas is sent from the intake pipe 210 into the reactor 100 and is treated. Specifically, the operating temperatures of the desulfurization adsorber 110 and the oxidation catalyst 120 are both equal to or greater than 400 ℃. Preferably, the first high temperature heating zone 130 heats the desulfurization adsorber 110 and the oxidation catalyst 120 to 400 ℃, 420 ℃, or 450 ℃.
Further, the air inlet pipe 210 is coated with a second high temperature heating tape 220, and the second high temperature heating tape 220 is used for heating the air inlet pipe 210. In the embodiment, the second high-temperature heating zone 220 heats the intake pipe 210, and preheats the engine exhaust gas flowing through the intake pipe 210, so that when the engine exhaust gas flows into the desulfurization adsorber 110, the temperature of the engine exhaust gas can effectively and rapidly reach the reaction temperature for removing the sulfide in the engine exhaust gas. Specifically, the second high temperature heating zone 220 can heat the inlet pipe 210 to 100-200 ℃. Preferably, the second high temperature heating zone 220 heats the inlet duct 210 to 120 ℃, 150 ℃, 180 ℃, or 200 ℃.
In this embodiment, the pretreatment system for the engine black carbon emission test further includes a methane storage device 410, the methane storage device 410 is communicated with the desulfurization adsorber 110, and methane in the methane storage device 410 is used for reducing the desulfurizing agent in the desulfurization adsorber 110. In this embodiment, after the pretreatment system for the engine black carbon emission test has processed the engine exhaust, the methane storage device 410 delivers methane to the desulfurization adsorber 110, and the desulfurizer is reduced by the methane for the next use.
Further, the pretreatment system for the engine black carbon emission test further comprises a nitrogen storage device 420, the nitrogen storage device 420 is communicated with the desulfurization adsorber 110, and nitrogen in the nitrogen storage device 420 is used for preventing methane from chemically reacting with other components. In this embodiment, after the pretreatment system for the engine black carbon emission test has processed the engine exhaust, the methane storage device 410 delivers methane to the desulfurization adsorber 110, and the nitrogen storage device 420 delivers nitrogen to the desulfurization adsorber 110 to remove other gas components in the desulfurization adsorber 110, and the nitrogen, as a balance gas, is not easily chemically reacted with other substances, thereby effectively preventing the methane from chemically reacting with other components, and avoiding polluting the desulfurization adsorber 110 and affecting the next use.
Further, the methane storage device 410 and the nitrogen storage device 420 are both communicated with the desulfurization adsorber 110 through a first pipeline 430, and a first valve 431 is disposed on the first pipeline 430. Specifically, a first end of the first pipe 430 is in communication with the desulfurization adsorber 110, and a second end is provided with a port in communication with the methane storage device 410 and a port in communication with the nitrogen storage device 420. In the present embodiment, the methane storage device 410 and the nitrogen storage device 420 are both communicated with the desulfurization adsorber 110 through the first pipeline 430, so that during the whole process of conveying methane to the reduction desulfurizer, nitrogen protects methane from chemical reaction with other components, and the first valve 431 is closed when the pretreatment system for the engine black carbon emission test treats the engine exhaust; when it is necessary to reduce the desulfurizing agent in the desulfurization adsorber 110, the first valve 431 is opened. Further, the first valve 431 may be a solenoid valve or other on-off valves, which are not described in detail herein.
Further, a second valve 211 is disposed on the intake pipe 210, a first end of the first pipe 430 is communicated with the intake pipe 210, and a first end of the intake pipe 210 is installed on the intake pipe 210 between the second valve 211 and the desulfurization adsorber 110. In this embodiment, when the pretreatment system for the engine black carbon emission test treats engine exhaust, the second valve 211 is opened; when it is desired to reduce the desulfurizing agent in the desulfurization adsorber 110, the second valve 211 is closed. Further, the second valve 211 may be an electromagnetic valve or other on-off valves, which are not described in detail herein.
In this embodiment, the pretreatment system for the engine black carbon emission test further includes a diluter 510, the diluter 510 is disposed on the outlet pipe 300, and the diluter 510 is used for diluting the engine exhaust. In this embodiment, because the testing requirements of the testing instrument on the black carbon concentration are different, the engine exhaust gas treated by the reactor 100 is diluted in the diluter 510 on the outlet pipe 300, so that the treated engine exhaust gas can be placed into the testing instrument with different requirements on the testing concentration to test the black carbon concentration.
Further, the pretreatment system for the engine black carbon emission test further comprises a compressed air device 520, wherein the compressed air device 520 is communicated with the diluter 510, and the compressed air device 520 can convey compressed air into the diluter 510 to dilute engine exhaust. Specifically, diluter 510 inlet end is provided with the compressed air connector, compressed air device 520 and compressed air connector intercommunication, when the engine tail gas after reactor 100 handles flows to diluter 510 inlet end department through outlet duct 300, compressed air device 520 carries compressed air to the compressed air connector, and then compressed air breaks away and dilutes engine tail gas, and the engine tail gas after the dilution mixes in diluter 510 with compressed air fully, collects in diluter 510 outlet duct 300 of the end one side of giving vent to anger.
Specifically, the compressed air device 520 is communicated with the diluter 510 through a second pipe 530, and a third valve 531 is provided on the second pipe 530. Specifically, the second duct 530 communicates with the compressed air connection port. In this embodiment, when the pretreatment system for the black carbon emission test of the engine processes the exhaust gas of the engine, the compressed air device 520 works to control the amount of compressed air entering the diluter 510 by controlling the opening degree of the third valve 531, so as to dilute the exhaust gas of the engine with different concentrations, so that the diluted exhaust gas of the engine can be placed into a test instrument corresponding to the test concentration requirement to perform the black carbon concentration test.
Further, when it is desired to reduce the desulfurizing agent in the desulfurization adsorber 110, the third valve 531 is closed, and the compressed air device 520 is not operated. Further, the third valve 531 may be an electromagnetic valve or other on-off valves, which are not described in detail herein.
Further, a fourth valve 310 is disposed on the outlet pipe 300. Specifically, the fourth valve 310 is disposed on the outlet pipe 300 between the oxidation catalyst 120 and the diluter 510. In the present embodiment, when the pretreatment system for the engine black carbon emission test treats the engine exhaust or needs to reduce the desulfurizing agent in the desulfurizing adsorber 110, the fourth valve 310 is opened; when the pretreatment system for the engine black carbon emission test is not in operation, both the second valve 211 and the fourth valve 310 are closed to prevent the external air from entering the reactor 100. Further, the fourth valve 310 may be a solenoid valve or other on-off valves, which are not described in detail herein.
Illustratively, when the pretreatment system for the engine black carbon emission test is used for treating the engine exhaust, the second valve 211 and the fourth valve 310 are opened and the first valve 431 is closed, the desulfurization adsorber 110 and the oxidation catalyst 120 are heated by the first high-temperature heating zone 130, the intake pipe 210 is heated by the second high-temperature heating zone 220, the engine exhaust is introduced from the intake pipe 210 after the intake pipe 210, the desulfurization adsorber 110 and the oxidation catalyst 120 reach the required temperatures, the engine exhaust enters the desulfurization adsorber 110 after being preheated by the intake pipe 210, the engine exhaust rapidly reaches the reaction temperature for removing the sulfides in the engine exhaust in the desulfurization adsorber 110, the engine exhaust enters the oxidation catalyst 120 after being removed the sulfides in the desulfurization adsorber 110, the engine exhaust enters the diluter 510 through the outlet pipe 300 after being removed the organic compounds in the oxidation catalyst 120, at the air inlet end of the diluter 510, the opening degree of the third valve 531 is adjusted, so that the compressed air device 520 puts a proper amount of compressed air into the compressed air connection port of the diluter 510 through the second pipeline 530, and further the compressed air is dispersed and dilutes the engine exhaust, the engine exhaust is fully mixed with the compressed air in the diluter 510, and is collected at the air outlet pipe 300 at the air outlet end side of the diluter 510, and the diluted engine exhaust is put into a test instrument corresponding to the test concentration requirement to perform the concentration test of black carbon.
After the pretreatment system for the engine black carbon emission test is used for treating the engine exhaust, the desulfurizer in the desulfurization adsorber 110 needs to be reduced, the first valve 431 and the fourth valve 310 are opened, the second valve 211 and the third valve 531 are closed, the methane storage device 410 is used for conveying methane into the desulfurization adsorber 110 through the first pipeline 430, the nitrogen storage device 420 is used for conveying nitrogen into the desulfurization adsorber 110 through the first pipeline 430, and the methane and the nitrogen are fully mixed in the first pipeline 430 and then enter the desulfurization adsorber 110 to reduce the desulfurizer for the next use.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The pretreatment system for the black carbon emission test of the engine is characterized by comprising a reactor (100), an air inlet pipe (210) and an air outlet pipe (300), wherein the reactor (100) comprises a desulfurization adsorber (110) and an oxidation catalyst (120), the desulfurization adsorber (110) is used for removing sulfides in engine tail gas, the oxidation catalyst (120) is used for removing organic compounds in the engine tail gas, and the air inlet pipe (210), the desulfurization adsorber (110), the oxidation catalyst (120) and the air outlet pipe (300) are communicated in sequence.
2. The pretreatment system for engine black carbon emission testing of claim 1, wherein the reactor (100) surface is coated with a first high temperature heating zone (130), the first high temperature heating zone (130) being used to heat the desulfurization adsorber (110) and the oxidation catalyst (120).
3. The pretreatment system for engine black carbon emission testing according to claim 1, wherein the intake pipe (210) is coated with a second high temperature heating tape (220), the second high temperature heating tape (220) being used for heating the intake pipe (210).
4. The pretreatment system for engine black carbon emission testing of claim 1, further comprising a methane storage device (410), the methane storage device (410) being in communication with the desulfurization adsorber (110), methane within the methane storage device (410) being used to reduce the desulfurizing agent in the desulfurization adsorber (110).
5. The pretreatment system for engine black carbon emission testing of claim 4, further comprising a nitrogen storage device (420), the nitrogen storage device (420) in communication with the de-sulfurization adsorber (110), the nitrogen within the nitrogen storage device (420) for preventing the methane from chemically reacting with other components.
6. The pretreatment system for engine black carbon emission testing of claim 5, wherein the methane storage device (410) and the nitrogen storage device (420) are both in communication with the de-sulfurizing adsorber (110) via a first conduit (430), the first conduit (430) having a first valve (431) disposed thereon.
7. The pretreatment system for engine black carbon emission testing according to claim 6, wherein a second valve (211) is disposed on the intake pipe (210), the first end of the first pipe (430) is communicated with the intake pipe (210), and the first end of the intake pipe (210) is mounted on the intake pipe (210) between the second valve (211) and the desulfurization adsorber (110).
8. The pretreatment system for engine black carbon emission testing according to any one of claims 1 to 7, further comprising a diluter (510), wherein the diluter (510) is disposed on the outlet pipe (300), and the diluter (510) is used for diluting the engine exhaust.
9. The pretreatment system for engine black carbon emission testing of claim 8, further comprising a compressed air device (520), the compressed air device (520) in communication with the diluter (510), the compressed air device (520) capable of discharging compressed air into the diluter (510) to dilute the engine exhaust.
10. The pretreatment system for engine black carbon emission testing of claim 9, wherein said compressed air device (520) is in communication with said diluter (510) via a second conduit (530), said second conduit (530) having a third valve (531) disposed thereon.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111447224.3A CN114100368A (en) | 2021-11-30 | 2021-11-30 | Pretreatment system for testing black carbon emission of engine |
| PCT/CN2022/115429 WO2023098180A1 (en) | 2021-11-30 | 2022-08-29 | Pretreatment system for engine black carbon emission test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111447224.3A CN114100368A (en) | 2021-11-30 | 2021-11-30 | Pretreatment system for testing black carbon emission of engine |
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| Publication Number | Publication Date |
|---|---|
| CN114100368A true CN114100368A (en) | 2022-03-01 |
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| CN202111447224.3A Pending CN114100368A (en) | 2021-11-30 | 2021-11-30 | Pretreatment system for testing black carbon emission of engine |
Country Status (2)
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| CN (1) | CN114100368A (en) |
| WO (1) | WO2023098180A1 (en) |
Cited By (1)
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| WO2023098180A1 (en) * | 2021-11-30 | 2023-06-08 | 中船动力研究院有限公司 | Pretreatment system for engine black carbon emission test |
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| CN101391177B (en) * | 2007-09-18 | 2012-09-19 | 杰智环境科技股份有限公司 | Gas purification method of low concentration organic compound |
| CN104645951A (en) * | 2013-11-21 | 2015-05-27 | 东营科尔特化工科技有限公司 | Regeneration method of fine desulfuration agent of liquefied petroleum gas |
| JP2018135808A (en) * | 2017-02-22 | 2018-08-30 | 東京瓦斯株式会社 | Exhaust gas purification device |
| CN108007699B (en) * | 2017-12-28 | 2023-09-29 | 清华大学 | Modularized vehicle-mounted emission test platform for tail gas pollutants of motor vehicle |
| CN212106016U (en) * | 2020-04-29 | 2020-12-08 | 石家庄市华柴机电设备有限公司 | Engine tail gas purification device |
| CN113385004B (en) * | 2021-06-01 | 2022-06-21 | 曲晓明 | Desulfurization method and device for sulfur production tail gas |
| CN114100368A (en) * | 2021-11-30 | 2022-03-01 | 中船动力研究院有限公司 | Pretreatment system for testing black carbon emission of engine |
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| WO2023098180A1 (en) * | 2021-11-30 | 2023-06-08 | 中船动力研究院有限公司 | Pretreatment system for engine black carbon emission test |
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