CN106896078A - A kind of diesel engine vent gas denitration the escaping of ammonia test device - Google Patents
A kind of diesel engine vent gas denitration the escaping of ammonia test device Download PDFInfo
- Publication number
- CN106896078A CN106896078A CN201710081437.6A CN201710081437A CN106896078A CN 106896078 A CN106896078 A CN 106896078A CN 201710081437 A CN201710081437 A CN 201710081437A CN 106896078 A CN106896078 A CN 106896078A
- Authority
- CN
- China
- Prior art keywords
- escaping
- gas
- diesel engine
- test device
- ammonia
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 52
- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 26
- 239000002184 metal Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 55
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 12
- 239000004202 carbamide Substances 0.000 description 6
- 235000013877 carbamide Nutrition 0.000 description 6
- 238000005259 measurement Methods 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 235000015110 jellies Nutrition 0.000 description 1
- 239000008274 jelly Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
-
- 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
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
Abstract
The present invention relates to a kind of diesel engine vent gas denitration the escaping of ammonia test device, including exhaust gas guide pipe, mixed zone, temperature control area and test section are disposed with the exhaust gas guide pipe, the mixed zone is used to uniformly be mixed the tail gas of access；The temperature control area will carry out temperature control by well mixed gas；The test section is used for carrying out denitration the escaping of ammonia test by temperature controlled gas.The present invention can meet narrow pipeline miniaturization and autgmentability demand.
Description
Technical field
The present invention relates to technical field of environment protection equipment, more particularly to a kind of diesel engine vent gas denitration the escaping of ammonia test dress
Put.
Background technology
With the continuous progress of life, scientific and technological continues to develop, the travel requirement more and more higher of people.Diesel engine is with its work(
Rate is big, widely for people go out walking-replacing tool and large scale equipment provides power, such as diesel trucks, diesel oil the features such as load-carrying is big
Bus, diesel oil agricultural machinery and implement, diesel-driven generator, diesel ship etc., the important impetus amount as modern Economy Development.Diesel engine is
Penetrate into the Working Life of people and the every aspect of social economy.But the pollution that at the same time, diesel combustion brings is also continuous
Improving.Under this overall background, the design and vent gas treatment of more clean environment firendly turn into following developing direction.
The diesel engine of carbamide reducing agent be increased compared with normal diesel engine, nitrogen oxides pollution is not only due to urea
Reduction becomes for nitrogen and water, simultaneously because supporting the use the gasoline of state IV standards, moreover it is possible to reduce oil consumption.
Compared with the instrument of traditional measurement waste gas discharge, test carbamide reducing agent more can directly reflect reducing agent consumption
It is whether suitable, front end urea spray system more accurately data control is given, while reflecting the working condition of catalyst converter, reflect
Go out the reaction efficiency of urea, it is thus also avoided that because the excessive caused jelly of urea spray is produced, block catalyst converter.Therefore ammonia is escaped
Ease device is widely used on the large scale industry facility such as coal fired power plant.But miniaturization, it is adapted to the escaping of ammonia dress of diesel engine
Put, big due to facing diesel engine vent gas temperature change, tail gas is unstable, gas componant uneven distribution, and pipeline is narrow, content is low
The problems such as being difficult to test, fails to use always.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of diesel engine vent gas denitration the escaping of ammonia test device, can meet
Narrow pipeline miniaturization and autgmentability demand.
The technical solution adopted for the present invention to solve the technical problems is：A kind of diesel engine vent gas denitration the escaping of ammonia is provided to survey
Trial assembly is put, including exhaust gas guide pipe, and mixed zone, temperature control area and test section are disposed with the exhaust gas guide pipe, described mixed
Closing area is used to uniformly be mixed the tail gas of access；The temperature control area will carry out temperature control by well mixed gas；
The test section is used for carrying out denitration the escaping of ammonia test by temperature controlled gas.
The pipeline of the exhaust gas guide pipe is each made of a metal, air inlet and gas outlet be provided with for corresponding flexible pipe clamping
Screw thread or buckle.
The screw thread or buckle of the exhaust gas guide pipe air inlet and the screw thread of exhaust outlet and buckle be mutually matched with it is another
The pipe connection of section exhaust gas guide.
A diameter of 100mm-500mm in the exhaust gas guide pipe, the duct length residing for the test section is 500mm-
2000mm, it is 2bar that the pipeline of the exhaust gas guide pipe is pressure-resistant.
The blade that multi-disc inwardly rotates is provided with pipeline residing for the mixed zone.
Multi-disc fin is embedded with pipeline residing for the temperature control area, heating rod is provided between the fin.
Pipeline residing for the test section is straight pipeline, and the two ends of the straight pipeline are provided with the Laser emission of gas tester
, there is data telecommunication line transmission signal at end and laser pick-off end between the laser pick-off end and Laser emission end；The laser hair
Penetrate the signal that will be handled well at end and control main frame is passed to by data wire.
The gas tester is infrared laser correlation the escaping of ammonia tester.
Beneficial effect
As a result of above-mentioned technical scheme, the present invention compared with prior art, has the following advantages that and actively imitates
Really：Structure setting advantages of simple of the present invention, the degree of modularity is high, and integrated level is high, and assembly is convenient, it is easy to which assembling and meet difference makes
With space, most of scenes can be met；The temperature control area of mutliblade mixed zone and multi-disc fin is introduced, therefore makes the gas of entrance
Evenly, gas temperature can also keep stabilization to body so that the present invention not only has the simple characteristic of assembling, and cause to enter
Evenly, temperature change is smaller for the gas of test section, it is ensured that test result is more accurate；Introducing high accuracy infrared laser can realize more
Accurately measurement；The present invention is applied widely, is applicable not only to the test of the ammonia after diesel engine vent gas denitration, it may also be used for other
Need high precision measurement, the gas of easy temperature influence.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the sectional view of mixed zone in the present invention；
Fig. 3 is the sectional view of temperature control area in the present invention.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.In addition, it is to be understood that after the content for having read instruction of the present invention, people in the art
Member can make various changes or modifications to the present invention, and these equivalent form of values equally fall within the application appended claims and limited
Scope.
Embodiments of the present invention are related to a kind of diesel engine vent gas denitration the escaping of ammonia test device, including exhaust gas guide pipe,
Mixed zone, temperature control area and test section are disposed with the exhaust gas guide pipe, the mixed zone is used to enter in the tail gas of access
The uniform mixing of row；The temperature control area will carry out temperature control by well mixed gas；The test section is used for through excess temperature
The gas for spending control carries out denitration the escaping of ammonia test.
As shown in figure 1, the side of exhaust gas guide pipe 1 have interface it is tight-lipped with motor vehicle exhaust emission it is close want to connect, have many in guide wire
The mixed zone 2 of the rotatable fin composition in hole, the blade inwardly rotated by multi-disc in the pipeline residing for mixed zone 2 is constituted.The control
Pipeline residing for warm area 3 is embedded with multi-disc fin, is additionally provided with heating rod on the side of part heat sink, residing for the test section 4
Pipeline be straight-run of pipe road, straight pipeline two ends are provided with the Laser emission end 41 and laser pick-off end 42 of laser testing instrument, test
The gas of completion is discharged through outlet 5, there is the transmission signal of data telecommunication line 43 between Laser emission end 41 and laser pick-off end 42,
The signal that Laser emission end 41 will be handled well passes to control main frame by data wire 44.
In order that two exhaust gas guide pipes can be connected, there are screw thread and the mutual clamping of buckle between every exhaust gas guide pipe,
According to the built-in mixed zone of subregion or temperature control area, the endoporus in exhaust gas guide area under control domain, length and direction can be modified as needed,
Tubular connector body rear end periphery is provided with stop lug or screw thread, for being connected with another exhaust gas guide pipe or bend pipe.
Pipeline interior diameter is 100mm-500mm, and test section duct length is 500mm-2000mm, and it is 2bar that pipeline is pressure-resistant.The bend pipe
Different overbending directions can as needed be chosen with the requirement suitable for different scenes to equipment volume and shape.
The gas discharged by engine outlet is connected to via plastic flexible pipe the porch of device, and (i.e. exhaust gas guide pipe enters
Gas port), the pipeline of exhaust gas guide pipe is made of metal, and air inlet has screw thread or the buckle can be with correspondingly-sized plastic flexible pipe clamping.
As shown in Fig. 2 in present embodiment, the gas of entrance passes through the mixed zone 2 being made up of eight blades 21, each leaf
Inwardly rotation extends piece 21, and the blade 21 in mixed zone 2 can be driven by motor, can also be driven without motor but the gas by entering
Body promotes to form cyclone, so as to the gas of entrance be homogenously mixed together.
As shown in figure 3, in present embodiment, mixed gas passes through the radiating area 3 being made up of eight fin 31, dissipate
Backing 31 is each made of a metal, and fin 31 significantly increases the contact area of gas and metal parts, can be to greatest extent
Increase heat exchange, coordinate heating rod 32 and thermometer so that temperature can be controlled well.Fin 31 can basis
The temperature of test is needed to add with insulation or temperature regulating device to meet different clients demand and to different temperatures gas test in outer ring
The need for.
Gas enters test section after by mixed zone and temperature control area, and the tester that test section uses is infrared laser pair
Formula the escaping of ammonia tester is penetrated, up to below 0.5ppm, precision is in 0.1ppm or smaller for detection limit.Test section also can select temperature control dress
Put to ensure the uniformity of gas temperature.
It is seen that, structure setting advantages of simple of the present invention, the degree of modularity is high, and integrated level is high, and assembly is convenient, it is easy to fill
With and meet different use spaces, most of scenes can be met；The temperature control area of mutliblade mixed zone and multi-disc fin is introduced,
Therefore the gas of entrance is made evenly, gas temperature can also keep stabilization so that the present invention not only has assembling simple special
Property, and so that enter the gas of test section evenly, temperature change is smaller, it is ensured that test result is more accurate；Introduce high accuracy
Infrared laser can be realized more accurately measuring；The present invention is applied widely, is applicable not only to the ammonia after diesel engine vent gas denitration
Test, it may also be used for other need high precision measurement, the gas of easy temperature influence.
Claims (8)
1. a kind of diesel engine vent gas denitration the escaping of ammonia test device, including exhaust gas guide pipe (1), it is characterised in that the tail gas
It is disposed with mixed zone (2), temperature control area (3) and test section (4) in guide wire (1), the mixed zone (2) is for by access
Tail gas is uniformly mixed；The temperature control area (3) will carry out temperature control by well mixed gas；The test section (4)
For to carrying out denitration the escaping of ammonia test by temperature controlled gas.
2. diesel engine vent gas denitration the escaping of ammonia test device according to claim 1, it is characterised in that the exhaust gas guide
The pipeline for managing (1) is each made of a metal, and air inlet and gas outlet are provided with for the screw thread or buckle with corresponding flexible pipe clamping.
3. diesel engine vent gas denitration the escaping of ammonia test device according to claim 2, it is characterised in that the exhaust gas guide
The screw thread or buckle for managing (1) air inlet are mutually matched with buckle with the screw thread of exhaust outlet and are connected with another section of exhaust gas guide pipe.
4. diesel engine vent gas denitration the escaping of ammonia test device according to claim 1, it is characterised in that the exhaust gas guide
A diameter of 100mm-500mm in pipe (1), the duct length residing for the test section (4) is 500mm-2000mm, the tail gas
It is 2bar that the pipeline of guide wire (1) is pressure-resistant.
5. diesel engine vent gas denitration the escaping of ammonia test device according to claim 1, it is characterised in that the mixed zone
(2) blade (21) that multi-disc inwardly rotates is provided with the pipeline residing for.
6. diesel engine vent gas denitration the escaping of ammonia test device according to claim 1, it is characterised in that the temperature control area
(3) multi-disc fin (31) is embedded with the pipeline residing for, heating rod (32) is provided between the fin (31).
7. diesel engine vent gas denitration the escaping of ammonia test device according to claim 1, it is characterised in that the test section
(4) pipeline residing for is straight pipeline, and the two ends of the straight pipeline are provided with the Laser emission end (41) of gas tester and laser connects
Receiving end (42), there is data telecommunication line (43) transmission signal between the laser pick-off end (42) and Laser emission end (41)；It is described
The signal that Laser emission end (41) will be handled well passes to control main frame by data wire (44).
8. diesel engine vent gas denitration the escaping of ammonia test device according to claim 7, it is characterised in that the gas test
Instrument is infrared laser correlation the escaping of ammonia tester.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710081437.6A CN106896078B (en) | 2017-02-15 | 2017-02-15 | A kind of diesel engine vent gas denitration the escaping of ammonia test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710081437.6A CN106896078B (en) | 2017-02-15 | 2017-02-15 | A kind of diesel engine vent gas denitration the escaping of ammonia test device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106896078A true CN106896078A (en) | 2017-06-27 |
| CN106896078B CN106896078B (en) | 2019-06-04 |
Family
ID=59198647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710081437.6A Active CN106896078B (en) | 2017-02-15 | 2017-02-15 | A kind of diesel engine vent gas denitration the escaping of ammonia test device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106896078B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201314914Y (en) * | 2008-11-11 | 2009-09-23 | 天津世纪动力科技发展有限公司 | Device for measuring exhaust pollutant from light automobile and engine thereof |
| CN104568834A (en) * | 2015-01-08 | 2015-04-29 | 天津大学 | TDLAS-based ammonia gas detection experiment system |
| CN105259137A (en) * | 2015-11-04 | 2016-01-20 | 安徽中科智泰光电测控科技有限公司 | Automatic absorption spectrum online in-situ measuring device for laser ammonia escape of pipeline |
| CN105556076A (en) * | 2013-09-20 | 2016-05-04 | 天纳克汽车经营有限公司 | Soot load determination system |
| CN205370705U (en) * | 2016-02-24 | 2016-07-06 | 北华大学 | Urea heating mixing arrangement |
-
2017
- 2017-02-15 CN CN201710081437.6A patent/CN106896078B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201314914Y (en) * | 2008-11-11 | 2009-09-23 | 天津世纪动力科技发展有限公司 | Device for measuring exhaust pollutant from light automobile and engine thereof |
| CN105556076A (en) * | 2013-09-20 | 2016-05-04 | 天纳克汽车经营有限公司 | Soot load determination system |
| CN104568834A (en) * | 2015-01-08 | 2015-04-29 | 天津大学 | TDLAS-based ammonia gas detection experiment system |
| CN105259137A (en) * | 2015-11-04 | 2016-01-20 | 安徽中科智泰光电测控科技有限公司 | Automatic absorption spectrum online in-situ measuring device for laser ammonia escape of pipeline |
| CN205370705U (en) * | 2016-02-24 | 2016-07-06 | 北华大学 | Urea heating mixing arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106896078B (en) | 2019-06-04 |
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Effective date of registration: 20240401 Address after: Room 609-16, Building 2, No. 888 Hezheng Road, Xiangzhou District, Zhuhai City, Guangdong Province, 519000 Patentee after: Zhuhai Maritime Technology Co.,Ltd. Country or region after: China Address before: Unit 701, 7th Floor, Building 4, North District, A5 Future Science and Technology City, No. 999 Gaoxin Avenue, Donghu New Technology Development Zone, Wuhan City, Hubei Province, 430073 Patentee before: WUHAN QICHENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Country or region before: China |