CN102817731A - Waste gas purification apparatus for diesel generating set - Google Patents
Waste gas purification apparatus for diesel generating set Download PDFInfo
- Publication number
- CN102817731A CN102817731A CN2012102891425A CN201210289142A CN102817731A CN 102817731 A CN102817731 A CN 102817731A CN 2012102891425 A CN2012102891425 A CN 2012102891425A CN 201210289142 A CN201210289142 A CN 201210289142A CN 102817731 A CN102817731 A CN 102817731A
- Authority
- CN
- China
- Prior art keywords
- unit
- generating set
- diesel generating
- waste gas
- control unit
- 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.)
- Pending
Links
- 239000002912 waste gas Substances 0.000 title claims abstract description 11
- 238000000746 purification Methods 0.000 title abstract 3
- 239000003054 catalyst Substances 0.000 claims abstract description 12
- 239000000446 fuel Substances 0.000 claims abstract description 12
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 7
- 238000001556 precipitation Methods 0.000 claims description 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 4
- 229910002482 Cu–Ni Inorganic materials 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 3
- 229910000510 noble metal Inorganic materials 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 239000013618 particulate matter Substances 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 239000010970 precious metal Substances 0.000 claims description 3
- 229910052703 rhodium Inorganic materials 0.000 claims description 3
- 239000010948 rhodium Substances 0.000 claims description 3
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 7
- 239000012717 electrostatic precipitator Substances 0.000 abstract 2
- 239000012528 membrane Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention relates to a waste gas purification apparatus for a diesel generating set, which consists of three parts including a catalyst unit, a control unit and a membrane electrostatic precipitator unit, wherein the control unit can be used for improving the efficiency of the catalyst unit by adjusting the air-fuel ratio; and the membrane electrostatic precipitator unit can be used for well absorbing particulate matters. The waste gas purification apparatus leads the waste gas treatment quality of the diesel generating set to be stable and efficient; and the catalyst unit can be more effectively used for purifying, so that the discharge quantity of the harmful gas is minimized.
Description
Technical field
The present invention relates to the environmental protection field of diesel generating set, particularly about a kind of diesel generating set waste gas cleaning plant.
Background technique
But CO, HC and three kinds of harmful gas compositions of NOx in the catalyst purifying exhaust gas are installed on the outlet pipe of diesel engine.The waste gas cleaning plant that existing diesel generating set is installed, owing to air fuel ratio is not controlled, the tail gas clean-up poor effect does not reach the effect of treating tail gas, can not solve the environmental issue of exhaust emissions fully.
Summary of the invention
In order to overcome above deficiency, the present invention takes following technological scheme: a kind of diesel generating set waste gas cleaning plant, form by catalyst unit, control unit and film electric precipitation unit three parts.The switching that control unit carries out open loop control and closed loop control according to the running state and the cooling water temperature of diesel generating set.In the outlet pipe of diesel engine, install lambda sensor to exhaust in the content of oxygen detect and obtain gasoline air mixture ratio.During closed loop control, control unit is controlled at air fuel ratio between 14.157 to 14.514 through the feedback adjustment injection time of lambda sensor.During open loop control, fuel injection quantity obtains through predefined injection time according to the running state of diesel generating set.
The core catalytic member of described catalyst unit adopts ceramic honeycomb as carrier, supports in platinum, palladium and three kinds of precious metals of rhodium at least aly as catalyzer on the carrier, perhaps adopts non-noble metal Cu-Ni oxide series as catalyzer.
Fine particulate matter in the absorption exhaust of described film electric precipitation unit.
The present invention revises fuel injection quantity according to the signal of lambda sensor input, realizes the feedback control of air fuel ratio, and the air fuel ratio that makes mixed gas is near chemically correct fuel, and catalyst unit is aseptic more effectively, and it is minimum that the discharge of harmful gases amount is dropped to.
Embodiment
A kind of diesel generating set waste gas cleaning plant is made up of catalyst unit, control unit and film electric precipitation unit three parts.The switching that control unit carries out open loop control and closed loop control according to the running state and the cooling water temperature of diesel generating set.In the outlet pipe of diesel engine, install lambda sensor to exhaust in the content of oxygen detect and obtain gasoline air mixture ratio.During closed loop control, control unit is controlled at air fuel ratio between 14.157 to 14.514 through the feedback adjustment injection time of lambda sensor.During open loop control, fuel injection quantity obtains through predefined injection time according to the running state of diesel generating set.
Learn that through experiment when control unit is controlled at 14.157 to air fuel ratio between 14.514 the time, the catalytic efficiency of catalysis unit is the highest.
The core catalytic member of described catalyst unit adopts ceramic honeycomb as carrier, supports in platinum, palladium and three kinds of precious metals of rhodium at least aly as catalyzer on the carrier, perhaps adopts non-noble metal Cu-Ni oxide series as catalyzer.
Fine particulate matter in the absorption exhaust of described film electric precipitation unit.
Claims (4)
1. diesel generating set waste gas cleaning plant; Said device is made up of catalyst unit, control unit and film electric precipitation unit three parts, it is characterized in that: the switching that control unit carries out open loop control and closed loop control according to the running state and the cooling water temperature of diesel generating set.
2. a kind of diesel generating set waste gas cleaning plant as claimed in claim 1 is characterized in that: during closed loop control, control unit is controlled at air fuel ratio between 14.157 to 14.514 through the feedback adjustment injection time of lambda sensor.
3. catalyst unit as claimed in claim 1; It is characterized in that: the core catalytic member of described catalyst unit; Adopt ceramic honeycomb as carrier; Support in platinum, palladium and three kinds of precious metals of rhodium at least aly on the carrier, perhaps adopt non-noble metal Cu-Ni oxide series as catalyzer as catalyzer.
4. film electric precipitation as claimed in claim 1 unit is characterized in that: the fine particulate matter in the absorption exhaust of described film electric precipitation unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102891425A CN102817731A (en) | 2012-08-15 | 2012-08-15 | Waste gas purification apparatus for diesel generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102891425A CN102817731A (en) | 2012-08-15 | 2012-08-15 | Waste gas purification apparatus for diesel generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102817731A true CN102817731A (en) | 2012-12-12 |
Family
ID=47302106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102891425A Pending CN102817731A (en) | 2012-08-15 | 2012-08-15 | Waste gas purification apparatus for diesel generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102817731A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020073694A1 (en) * | 2000-12-19 | 2002-06-20 | Toshitaka Minami | Device for purifying exhaust gas of diesel engines |
| CN1924329A (en) * | 2005-09-02 | 2007-03-07 | 通用汽车环球科技运作公司 | Closed loop A/F ratio control for diesel engines using an oxygen sensor |
| CN101418729A (en) * | 2007-10-22 | 2009-04-29 | 山东申普汽车控制技术有限公司 | Control method for self-regulating air input of engine |
| CN101749135A (en) * | 2008-12-17 | 2010-06-23 | 浙江永源汽车有限公司 | Vehicle exhaust emission control technology |
| CN202215384U (en) * | 2011-08-17 | 2012-05-09 | 张启海 | Auxiliary electronic control fuel-saving device for automobile |
-
2012
- 2012-08-15 CN CN2012102891425A patent/CN102817731A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020073694A1 (en) * | 2000-12-19 | 2002-06-20 | Toshitaka Minami | Device for purifying exhaust gas of diesel engines |
| CN1924329A (en) * | 2005-09-02 | 2007-03-07 | 通用汽车环球科技运作公司 | Closed loop A/F ratio control for diesel engines using an oxygen sensor |
| CN101418729A (en) * | 2007-10-22 | 2009-04-29 | 山东申普汽车控制技术有限公司 | Control method for self-regulating air input of engine |
| CN101749135A (en) * | 2008-12-17 | 2010-06-23 | 浙江永源汽车有限公司 | Vehicle exhaust emission control technology |
| CN202215384U (en) * | 2011-08-17 | 2012-05-09 | 张启海 | Auxiliary electronic control fuel-saving device for automobile |
Non-Patent Citations (3)
| Title |
|---|
| PHIRUN SAIYASITPANICH: "Removal of diesel particulate matter (DPM)in a tubular wet electrostatic precipitator", 《JOURNAL OF ELECTROSTATICS》, vol. 65, no. 10, 28 February 2007 (2007-02-28), pages 618 * |
| 何伟: "柴油发电机尾气烟尘净化器", 《中国环境管理干部学院学报》, vol. 14, no. 4, 31 July 2006 (2006-07-31), pages 54 - 56 * |
| 何伟: "柴油发电机尾气烟尘净化器", 《中国环境管理干部学院学报》, vol. 14, no. 4, December 2004 (2004-12-01), pages 54 - 56 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121212 |