CN114165322A - Novel tail gas purification system for fuel oil train - Google Patents
Novel tail gas purification system for fuel oil train Download PDFInfo
- Publication number
- CN114165322A CN114165322A CN202111643904.2A CN202111643904A CN114165322A CN 114165322 A CN114165322 A CN 114165322A CN 202111643904 A CN202111643904 A CN 202111643904A CN 114165322 A CN114165322 A CN 114165322A
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- CN
- China
- Prior art keywords
- tail gas
- train
- exhaust
- purification system
- exhaust 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/011—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel
- F01N13/017—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel the purifying devices are arranged in a single housing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
- F01N13/1816—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration the pipe sections being joined together by flexible tubular elements only, e.g. using bellows or strip-wound pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2250/00—Combinations of different methods of purification
- F01N2250/02—Combinations of different methods of purification filtering and catalytic conversion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/10—Carbon or carbon oxides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/12—Hydrocarbons
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention relates to a novel tail gas purification system for a fuel oil train, which comprises two exhaust units, wherein corrugated pipes are arranged at two ends of each exhaust unit, a gas control valve is installed on the corrugated pipe at one end in a butt joint mode, a main gas outlet pipeline is installed on the corrugated pipe at the other end in a butt joint mode, the two exhaust units are respectively arranged at two ends of the tail gas purification system for the fuel oil train and are in butt joint with exhaust pipes of an engine, the two exhaust units are in middle rotation symmetry, a main channel is installed between the gas control valves and the main gas outlet pipelines which respectively belong to the two exhaust units, and a starting channel is arranged between the gas control valve and the main gas outlet pipeline which both belong to one exhaust unit. Compared with the prior art, the invention has the advantages that: can reduce the harmful gas emission in the tail gas through clean system purification fuel train, reduce environmental pollution's probability, realize energy saving and emission reduction, spare part is changed simply, can reduce the maintenance cost, and the part of targeted maintenance damage can.
Description
Technical Field
The invention relates to a fuel train purification technology, in particular to a novel tail gas purification system for a fuel train.
Background
The oil-fired train is usually driven by a diesel engine, the exhaust emission is large, and particularly when the engine of the oil-fired train is just started, because the optimal combustion condition is not achieved, the fuel is not sufficiently combusted, and the concentration of particulate matters in the exhaust is high.
Tail gas clean system for fuel train among the prior art is the single channel usually, is provided with the purification unit who is used for purifying tail gas in the passageway, and the purification channel of tail gas clean system for fuel train of this kind of structure is blockked up by particulate matter in the tail gas very easily, and the maintenance cycle of tail gas clean system for fuel train is shorter, and the purifier occupation space of single channel is big, can increase whole tail gas processing system's volume, influences purification efficiency to improve manufacturing cost.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem that a train in the prior art can emit a large amount of tail gas in the using process, and the tail gas contains a large amount of substances polluting air, thereby providing a novel tail gas purification system for a fuel oil train.
In order to solve the technical problem, the novel tail gas purification system for the fuel oil train comprises two exhaust units, wherein corrugated pipes are arranged at two ends of each exhaust unit, a gas control valve is installed at the end of each corrugated pipe in a butt joint mode, a gas outlet main pipeline is installed at the other end of each corrugated pipe in a butt joint mode, the two exhaust units are respectively arranged at two ends of the tail gas purification system for the fuel oil train and are in butt joint with exhaust pipes of an engine, the two exhaust units are in rotational symmetry, a main channel is installed between the gas control valves and the gas outlet main pipelines which respectively belong to the two exhaust units, and a starting channel is arranged between the gas control valve and the gas outlet main pipeline which both belong to one exhaust unit.
Compared with the prior art, the invention has the advantages that: can reduce the harmful gas emission in the tail gas through clean system purification fuel train, reduce environmental pollution's probability, realize energy saving and emission reduction, spare part is changed simply, can reduce the maintenance cost, and the part of targeted maintenance damage can.
As an improvement, the exhaust unit comprises a lower chamber, an upper chamber is arranged at the top of the lower chamber, a partition plate is arranged between the upper chamber and the lower chamber, and butterfly valves are arranged outside the upper chamber and the lower chamber.
As the improvement, exhaust unit both sides and top all are equipped with the connector, make things convenient for exhaust unit to install on the system, are connected with the bellows at both ends.
As an improvement, the exhaust unit and the corrugated pipe are connected through a flange, and the flange connection can ensure the tightness of the connection.
As an improvement, the corrugated pipe is connected with the gas control valve and the main gas outlet pipeline through flange plates.
As an improvement, the gas control valve is connected with the main channel and the starting channel through flange plates.
As an improvement, the butterfly valve is a three-section butterfly valve, and the components are connected through flanges.
Drawings
In order that the present disclosure may be more readily and clearly understood, reference will now be made in detail to the present disclosure, examples of which are illustrated in the accompanying drawings.
Fig. 1 is a schematic structural diagram of a novel tail gas purification system for a fuel oil train.
Fig. 2 is a perspective view of a novel tail gas purification system for a fuel oil train.
Fig. 3 is a schematic structural diagram of an exhaust unit of a novel exhaust gas purification system for a fuel-oil train.
As shown in the figure: 1. the device comprises an exhaust unit, 2, a corrugated pipe, 3, a gas control valve, 4, a main channel, 5, an air outlet main pipeline, 6, a starting channel, 7, a lower chamber, 8, an upper chamber, 9, a partition plate, 10 and a butterfly valve.
Detailed Description
As shown in fig. 1 and fig. 2, this embodiment provides a novel tail gas purification system for fuel oil train, including exhaust unit 1, exhaust unit 1's both ends all are equipped with bellows 2, bellows 2 butt joint of one end is installed gas control valve 3, the main pipeline 5 of giving vent to anger is installed in the butt joint of other end bellows 2, exhaust unit 1's quantity is two, divide the both ends of locating tail gas purification system for fuel oil train, with the blast pipe position butt joint of engine, two exhaust unit 1 are rotational symmetry, divide and to belong to gas control valve 3 of two exhaust unit 1 and give vent to anger and install main channel 4 between the main pipeline 5, with belonging to gas control valve 3 of one exhaust unit 1 and giving vent to anger and being equipped with start-up passageway 6 between the main pipeline 5.
The tail gas of the locomotive is discharged from the air outlets of the superchargers at the front side and the rear side of the engine, and is guided into a pipeline of a purifier through an exhaust unit 1 of the purification system;
the tail gas purifier can respectively treat tail gas in different stages through the gas control valve 3, and the gas control valve 3 is positioned in front of the gas inlet pipelines of the main channel 4 and the starting channel 6;
when the fuel train engine is started, the valve plate in the gas control valve 3 rotates to open the pipeline in the direction of the starting channel 6, the pipeline in the direction of the main channel 4 is closed, tail gas is guided into the starting channel 6, the tail gas of high-concentration particulate matters in the engine tail gas enters the starting channel 6 through the gas control valve 3, DPF diesel particulate matter catcher carriers are packaged in the starting channel 6, and the particulate matters in the tail gas are filtered and caught under the action of the diesel particulate matter catcher, so that the particulate matters in the tail gas can be remarkably reduced; because the engine starting mode lasts for a short time, the total exhaust emission is small, and main pollutant particles in the exhaust are filtered, the exhaust emission in the engine starting mode basically cannot cause obvious air pollution;
when the engine normally runs after being started, the valve plate in the gas control valve 3 rotates to close the pipeline in the direction of the starting channel 6, tail gas enters the main channel 4 through the gas control valve 3, and the DOC unit and the POC unit or the DPF unit which are sequentially packaged in the main channel 4 along the flow direction of the tail gas purify hydrocarbon HC, carbon monoxide CO and part of particulate matter PM in the tail gas, so that the tail gas can achieve a good purifying effect;
the interior of the purifier exhaust unit 1 is divided into an upper chamber and a lower chamber by a middle partition plate 9 structure; one end of the lower chamber 7 is connected with an exhaust outlet of the engine supercharger, and the other end of the lower chamber is connected with an air inlet through pipeline of the purifier; one end of the upper chamber 8 is connected with the purifier gas outlet main pipeline 5, and the other end is an exhaust outlet for exhausting purified tail gas to the atmosphere; and, exhaust unit 1 welded pipe line and butterfly valve 10 structure utilize flange joint, two upper and lower cavities of intercommunication, under the emergency situation, can open butterfly valve 10, make upper and lower cavity 7 communicate, tail gas can not pass through the clarifier, directly gets into upper cavity 8 back atmosphere by exhaust unit 1 lower cavity 7.
Further, as shown in fig. 3, the exhaust unit 1 includes a lower chamber 7, an upper chamber 8 is disposed at the top of the lower chamber 7, a partition plate 9 is disposed between the upper chamber 8 and the lower chamber 7, and a butterfly valve 10 is installed outside the upper chamber 8 and the lower chamber 7.
As the improvement, the two sides and the top of the exhaust unit 1 are provided with connectors, so that the exhaust unit is convenient to install on a system and is connected with corrugated pipes at the two ends.
As an improvement, the exhaust unit 1 and the corrugated pipe 2 are connected through a flange, and the flange connection can ensure the tightness of the connection.
As an improvement, the corrugated pipe 2 is connected with the gas control valve 3 and the main gas outlet pipeline 5 through flange plates.
As a modification, the gas control valve 3 is connected with the main channel 4 and the starting channel 6 through flange plates.
As an improvement, the butterfly valve 10 is a three-section butterfly valve, and components are connected through flanges.
Furthermore, the starting channel 6 is communicated with the air outlet pipeline of the main channel 4 to form an air outlet main pipeline 5 of the purifier, and the air outlet main pipeline 5 of the purifier is communicated with an upper chamber 8 of the exhaust unit 1;
the air inlet pipeline and the air outlet pipeline at the front end and the rear end of the purifier are respectively connected by a corrugated pipe 2 to isolate the vibration of the supercharger and the purifier;
along the circulation direction of the tail gas, the tail gas passes through an outlet of the supercharger, a lower cavity 7 of the exhaust unit 1, an air inlet pipeline of the purifier, the corrugated pipe 2, the gas control valve 3, the main channel 4 or the starting channel 6, an air outlet main pipeline 5 of the purifier, an upper cavity 8 of the exhaust unit 1 and an exhaust outlet in sequence.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of the invention may be made without departing from the spirit or scope of the invention.
Claims (7)
1. The utility model provides a novel tail gas clean-up system for fuel oil train, includes exhaust unit (1), its characterized in that: the both ends of exhaust unit (1) all are equipped with bellows (2), gas control valve (3) are installed in bellows (2) butt joint of one end, the main pipeline (5) of giving vent to anger is installed in other end bellows (2) butt joint, the quantity of exhaust unit (1) is two, divide the both ends of locating tail gas clean system for the fuel train, with the blast pipe position butt joint of engine, two exhaust units (1) are rotational symmetry, divide and install main passageway (4) between gas control valve (3) and the main pipeline (5) of giving vent to anger that belong to two exhaust units (1), be equipped with between gas control valve (3) and the main pipeline (5) of giving vent to anger that belong to one exhaust unit (1) and start channel (6).
2. The novel tail gas purification system for the oil-fired train as claimed in claim 1, wherein: exhaust unit (1) is equipped with cavity (8) including lower cavity (7), lower cavity (7) top, goes up cavity (8) and is equipped with between cavity (7) baffle (9) down, goes up cavity (8) and installs butterfly valve (10) with lower cavity (7) outside.
3. The novel tail gas purification system for the oil-fired train as claimed in claim 1, wherein: connectors are arranged on the two sides and the top of the exhaust unit (1).
4. The novel tail gas purification system for the oil-fired train as claimed in claim 1, wherein: the exhaust unit (1) is connected with the corrugated pipe (2) through a flange.
5. The novel tail gas purification system for the oil-fired train as claimed in claim 1, wherein: the corrugated pipe (2), the gas control valve (3) and the main gas outlet pipeline (5) are connected by flanges.
6. The novel tail gas purification system for the oil-fired train as claimed in claim 1, wherein: and the gas control valve (3) is connected with the main channel (4) and the starting channel (6) by flange plates.
7. The novel tail gas purification system for the oil-fired train as claimed in claim 2, wherein: the butterfly valve (10) is a three-section butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111643904.2A CN114165322A (en) | 2021-12-29 | 2021-12-29 | Novel tail gas purification system for fuel oil train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111643904.2A CN114165322A (en) | 2021-12-29 | 2021-12-29 | Novel tail gas purification system for fuel oil train |
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| Publication Number | Publication Date |
|---|---|
| CN114165322A true CN114165322A (en) | 2022-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111643904.2A Pending CN114165322A (en) | 2021-12-29 | 2021-12-29 | Novel tail gas purification system for fuel oil train |
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| CN (1) | CN114165322A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750056A (en) * | 2022-11-15 | 2023-03-07 | 无锡市隆盛轨道科技有限公司 | Post-processing system for rail locomotive |
-
2021
- 2021-12-29 CN CN202111643904.2A patent/CN114165322A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115750056A (en) * | 2022-11-15 | 2023-03-07 | 无锡市隆盛轨道科技有限公司 | Post-processing system for rail locomotive |
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