CN203584520U - Tail gas clean-up system of diesel generating set - Google Patents
Tail gas clean-up system of diesel generating set Download PDFInfo
- Publication number
- CN203584520U CN203584520U CN201320785146.2U CN201320785146U CN203584520U CN 203584520 U CN203584520 U CN 203584520U CN 201320785146 U CN201320785146 U CN 201320785146U CN 203584520 U CN203584520 U CN 203584520U
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- tail gas
- eps
- heat exchanger
- fire
- closing valve
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
The utility model relates to a tail gas clean-up system, in particular to a tail gas clean-up system of a diesel generating set. The tail gas clean-up system of the diesel generating set belongs to the technical field of energy saving and environmental protection and the tail gas clean-up of the diesel generating set. The tail gas clean-up system of the diesel generating set comprises a pre-treatment system and a treatment system. The pre-treatment system comprises an oil delivery pipe and an EPS nanometer fuel treater; the oil delivery pipe is connected with the EPS nanometer fuel treater; the EPS nanometer fuel treater is connected with a working set; diesel enters the EPS nanometer fuel treater through the oil delivery pipe, and enters the working set after being treated through the EPS nanometer fuel treater. The intelligent regeneration electrical heating control catalysis technique is realized, so that a catalyst rapidly reaches the working temperature, and the emission of hazardous substances when coldstart is performed by a diesel engine is reduced. The purification rate of black smoke of the system reaches 95-97 percent, and the content of CO, the content of HC and the content of NOx in tail gas can respectively meet the requirement of the Chinese standard.
Description
Technical field
The utility model relates to exhaust gas purification system, specifically relates to a kind of tail gas from diesel electric generator cleaning system, and it belongs to diesel generator tail gas clean-up energy-conserving and environment-protective technical field.
Background technique
During diesel generating set work at present, the energy nearly 30% of fuel is discharged with tail gas, due to fuel oil quality difference, the objective factor impacts such as diesel generating set working environment, exhaust emissions of diesel engine is difficult to up to standard, in solution diesel engine vent gas purification scheme, cleaning of off-gas equipment is too single again at present, and practice effect is undesirable.
Summary of the invention
In view of the problem of prior art existence, the object of this invention is to provide a kind of tail gas from diesel electric generator cleaning system, adopt the energy-saving environmental protection device of a kind of electrostatic particle catcher and DPF particulate filter secondary purification diesel generation tail gas, reach tail gas from diesel electric generator and purify high efficiency object.
To achieve these goals, the technical solution adopted in the present invention is tail gas from diesel electric generator cleaning system, and it comprises: pretreatment system and processing system, and described pretreatment system comprises: transport pipe and EPS nano fuel processor; Transport pipe is connected with EPS nano fuel processor, and EPS nano fuel processor is connected with working group, and diesel oil enters EPS nano fuel processor by transport pipe, through EPS nano fuel processor diesel oil after treatment, enters working group;
Described processing system comprises: heat exchanger, fire-closing valve, electrostatic particle catcher, regenerative heater and DFF particulate filter; Working group is connected with heat exchanger by pipeline, heat exchanger is connected with fire-closing valve a by pipeline, fire-closing valve a is connected with electrostatic particle catcher, electrostatic particle catcher is connected with regeneration electric heater by pipeline, regeneration electric heater is connected with DFF particulate filter by pipeline, and DFF particulate filter is connected with outlet pipe b; Pipeline between electrostatic particle catcher and regeneration electric heater is provided with fire-closing valve b; Described heat exchanger is provided with intake pipe and outlet pipe; Between described heat exchanger and fire-closing valve a and between fire-closing valve b and regenerative heater, be respectively equipped with outlet pipe a, outlet pipe a is connected with outlet pipe b; The tail gas that working group discharges enters heat exchanger, tail gas by heat exchanger enters electrostatic particle catcher by fire-closing valve a, tail gas through electrostatic particle catcher enters regeneration electric heater by fire-closing valve b, tail gas through regeneration electric heater enters DFF particulate filter, and by outlet pipe, b discharges.
Described heat exchanger is aqueous vapor heat exchanger.
80% carbon black granules and profit dirt in described first class purification gas electrostatic particle catcher processing tail gas; the powerful electrostatic field of high voltage direct current forms in the middle of being arranged on earth plate by stainless hacksaw silk; Give leads to high voltage direct current, and in waste gas, carbon black granules is ionized to charged particle; The seizure of the multistage electrostatic field of process is with separation, and in waste gas, carbon black granules 80% is separated; The water droplet greasy dirt being separated in electrostatic field is deposited on anode barrel, centralized and unified processing.
Described secondary purification gas DPF particulate filter is by CO, HC in tail gas, is oxidized to CO2 and H2O; NOX nitride is reduced into harmless N2 gas; process the carbon black granules of 15-18% in tail gas; its working principle is as follows: DPF particulate filter shell is by corrosion resistant plate, and filter core is comprised of silicon carbide fiber cotton+wire gaze; Catalyzer: SiC particulate ceramic carrier+integral honeycomb ceramic monolith+integral honeycomb metallic carrier; Carrier: the complex salt that is coated with lid layer SiC and barium Ba cerium Ce zirconium Zr oxide in integral honeycomb metal surface; expand long-pending its modern technologies that formed by the catcher of oxidation catalysis unit and supported catalyst, vent gas treatment of catalytic surface; mainly decomposing H C; CO; PM; in tail gas, CO and HC are reducibility gas, and NOx is oxidizing gas; Under three-element catalytic effect, chemical reaction is as follows:
Oxidation reaction (oxidation catalyst)
2OC+O2=2OC2
4HC+5O2=4CO2?+2H2O
Three elementary reactions (three-way catalyst)
2CO+2NO=2CO2?+N2
4HC+10NO=4CO2+2H2O+5N2
Other reaction
HC+ H2O → CO+H2 (explosive)
5H2+10NO?→?NH3+H2O
Compared with prior art there is following beneficial effect: due to the application of tail gas from diesel electric generator purifier technology, realize intelligent regenerative electric heating control catalysis technique, can make catalyzer reach rapidly operating temperature, the discharge of harmful matter while reducing diesel engine cold start.System black smoke purification ratio reaches 95-97%, and in tail gas, CO, HC, NOx content all can reach GB requirement.
Accompanying drawing explanation
fig. 1the system schematic of tail gas from diesel electric generator purifier:
In figure: 1, transport pipe, 2, EPS nano fuel processor, 3, heat exchanger, 4, fire-closing valve a, 5, electrostatic particle catcher, 6, fire-closing valve b, 7, regeneration electric heater, 8, DPF particulate filter.
Embodiment
Diesel oil enters EPS nano fuel processor 2 through transport pipe 1; content through sulphur in the catalytic diesel oil of nanometered disposal device is less than 0.01%; can not work and start just to reduce the source of noxious gas emission from diesel oil; can also reduce zinc in diesel oil, phosphorus, lead content, while preventing catalyzer work, cause lead poisoning simultaneously; Diesel engine high-temperature tail gas 3 is through smoke evacuation heat exchanger 4, temperature degree by 500 ° of C drop to 80 ° of C laggard enter static grain catcher 7, become first class purification gas and enter DPF particulate filter 9 through regeneration electric heater 8, through the tail gas of secondary purification, becoming cleaning of off-gas gets rid of, what finally get rid of is environmental purification gas, thoroughly solves exhaust emissions of diesel engine problem up to standard.Described EPS nano fuel processor 2 its effects are that the diesel oil to entering diesel engine does Tail Gas prevention processing in early stage, the diesel oil of input is removed to the objectionable impurities such as its sulphur, zinc, phosphorus, prevention DPF catalyst poisoning lost efficacy, remove the impurity such as the lead in diesel oil, prevent that lead deposit is on noble metal platinum Ptl, rhodium Rh, Palladium Pd surface, destroy catalyst structure.
Claims (2)
1. tail gas from diesel electric generator cleaning system, it comprises: pretreatment system and processing system, described pretreatment system comprises: transport pipe and EPS nano fuel processor; Transport pipe is connected with EPS nano fuel processor, and EPS nano fuel processor is connected with working group, and diesel oil enters EPS nano fuel processor by transport pipe, through EPS nano fuel processor diesel oil after treatment, enters working group; Described processing system comprises: heat exchanger, fire-closing valve, electrostatic particle catcher, regenerative heater and DFF particulate filter; Working group is connected with heat exchanger by pipeline, heat exchanger is connected with fire-closing valve a by pipeline, fire-closing valve a is connected with electrostatic particle catcher, electrostatic particle catcher is connected with regeneration electric heater by pipeline, regeneration electric heater is connected with DFF particulate filter by pipeline, and DFF particulate filter is connected with outlet pipe b; Pipeline between electrostatic particle catcher and regeneration electric heater is provided with fire-closing valve b; Described heat exchanger is provided with intake pipe and outlet pipe; Between described heat exchanger and fire-closing valve a and between fire-closing valve b and regenerative heater, be respectively equipped with outlet pipe a, outlet pipe a is connected with outlet pipe b; The tail gas that working group discharges enters heat exchanger, tail gas by heat exchanger enters electrostatic particle catcher by fire-closing valve a, tail gas through electrostatic particle catcher enters regeneration electric heater by fire-closing valve b, tail gas through regeneration electric heater enters DFF particulate filter, and by outlet pipe, b discharges.
2. tail gas from diesel electric generator cleaning system according to claim 1, is characterized in that: described heat exchanger is aqueous vapor heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320785146.2U CN203584520U (en) | 2013-12-04 | 2013-12-04 | Tail gas clean-up system of diesel generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320785146.2U CN203584520U (en) | 2013-12-04 | 2013-12-04 | Tail gas clean-up system of diesel generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203584520U true CN203584520U (en) | 2014-05-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320785146.2U Expired - Fee Related CN203584520U (en) | 2013-12-04 | 2013-12-04 | Tail gas clean-up system of diesel generating set |
Country Status (1)
| Country | Link |
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| CN (1) | CN203584520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110832174A (en) * | 2017-07-10 | 2020-02-21 | 大众汽车有限公司 | System and method for exhaust gas aftertreatment of an internal combustion engine |
-
2013
- 2013-12-04 CN CN201320785146.2U patent/CN203584520U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110832174A (en) * | 2017-07-10 | 2020-02-21 | 大众汽车有限公司 | System and method for exhaust gas aftertreatment of an internal combustion engine |
| CN110832174B (en) * | 2017-07-10 | 2022-01-11 | 大众汽车有限公司 | System and method for exhaust gas aftertreatment of an internal combustion engine |
| US11274590B2 (en) | 2017-07-10 | 2022-03-15 | Volkswagen Aktiengesellschaft | System and method for exhaust gas aftertreatment of an internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20151204 |
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| EXPY | Termination of patent right or utility model |