CN110578580B - Main engine SCR cabin internal arrangement structure for small and medium-sized ships - Google Patents
Main engine SCR cabin internal arrangement structure for small and medium-sized ships Download PDFInfo
- Publication number
- CN110578580B CN110578580B CN201910812234.9A CN201910812234A CN110578580B CN 110578580 B CN110578580 B CN 110578580B CN 201910812234 A CN201910812234 A CN 201910812234A CN 110578580 B CN110578580 B CN 110578580B
- Authority
- CN
- China
- Prior art keywords
- catalyst
- pipe
- selective reduction
- catalytic converter
- air inlet
- 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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Links
- 239000003054 catalyst Substances 0.000 claims abstract description 111
- 238000009434 installation Methods 0.000 claims abstract description 15
- 238000006722 reduction reaction Methods 0.000 claims description 65
- 230000003197 catalytic effect Effects 0.000 claims description 51
- 238000010531 catalytic reduction reaction Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 108010066057 cabin-1 Proteins 0.000 description 9
- 239000007789 gas Substances 0.000 description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052815 sulfur oxide Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- 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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
-
- 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
Abstract
The invention relates to the technical field of ships, and discloses a main engine SCR cabin internal arrangement structure for small and medium-sized ships, which comprises a cabin, a diesel engine arranged in the cabin and a selective reduction catalyst connected with a diesel engine exhaust pipe, wherein two ends of the selective reduction catalyst are respectively connected with a catalyst air inlet pipe and a catalyst exhaust pipe, the catalyst air inlet pipe, the catalyst exhaust pipe and the selective reduction catalyst are connected to form an integral U-shaped structure, a plurality of layers of equipment mounting platforms are respectively arranged between a bottom deck and a top deck of the cabin in the cabin, the selective reduction catalyst is mounted on the lowest equipment mounting platform in the cabin, the diesel engine is mounted on the bottom deck of the cabin, and the upper part of the diesel engine is exposed on the lowest equipment mounting platform in the cabin. The invention realizes compact installation of the selective reduction catalyst in the cabin, reduces the installation cost and facilitates the operation and maintenance of the SCR system.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a main engine SCR cabin internal arrangement structure for small and medium-sized ships.
Background
The marine diesel engine generates exhaust gas during operation, and causes serious harm to the marine atmosphere and the harbor environment. In order to reduce the influence of diesel engine exhaust gas on the atmosphere and the environment, a Selective Catalytic Reduction (SCR) system is generally arranged on a large ship in the prior art, the exhaust gas is treated by the SCR and then discharged, and sulfur oxides (SOx), (NOx) nitrogen oxides and particulate matters are effectively eliminated, so that the purpose of protecting the marine atmosphere and the port environment is achieved.
The core device of the SCR system is a selective reduction catalyst, a catalyst air inlet pipe and a catalyst exhaust pipe are arranged on the selective reduction catalyst, and an inlet of the urea liquid injection device is arranged on the catalyst air inlet pipe. When the SCR system works, waste gas discharged by the diesel engine firstly enters an air inlet pipe of the catalyst, enters a selective reduction catalyst after being mixed with urea solution serving as a reducing agent for reaction, and is discharged from an exhaust pipe of the catalyst after being catalyzed and reacted by the catalyst. Currently, SCR systems are mainly deployed on large vessels.
In the prior art, the conventional installation mode of the selective reduction catalyst of the large-sized ship in the engine room adopts vertical installation. The selective reduction catalyst is vertically arranged above the diesel engine, and a catalyst air inlet pipe which is directly connected with the lower end of the selective reduction catalyst is connected with an exhaust pipe of the diesel engine.
The above-described vertical arrangement of the selective reduction catalyst in the nacelle has the drawbacks that: the height of the selective reduction catalyst is higher, and a certain design length of the catalyst air inlet pipe is required to be achieved, so that the space occupied by the selective reduction catalyst is higher in vertical arrangement, and the selective reduction catalyst cannot be suitable for arrangement in cabins of small and medium ships. If it is considered to implement a conventional horizontal installation of the selective reduction catalyst, the requirements are likewise not satisfied due to the limitation of the horizontal space.
Disclosure of Invention
In order to solve the problems, the invention provides an arrangement structure in a main engine SCR cabin for a small and medium-sized ship, which aims to realize compact installation of a selective reduction catalyst in the cabin, reduce the installation cost and facilitate the operation and maintenance of an SCR system. The specific technical scheme is as follows:
the utility model provides an arrangement structure in host computer SCR cabin for middle-size and small-size boats and ships, includes the cabin and sets up diesel engine in the cabin and connect the selective reduction catalyst of diesel engine blast pipe, the both ends of selective reduction catalyst are connected with catalyst intake pipe and catalyst blast pipe respectively, just catalyst intake pipe, catalyst blast pipe with the selective reduction catalyst is connected back and becomes whole U type structure be located in the cabin set up the equipment mounting platform of a plurality of layers respectively according to upper and lower position between the bottom deck and the top deck of cabin, the selective reduction catalyst is installed on the lower one deck equipment mounting platform in the cabin, diesel engine installs on the cabin bottom deck, just diesel engine's upper portion expose in on the lower one deck equipment mounting platform in the cabin.
According to the technical scheme, the multi-layer equipment mounting platform is arranged in the ship cabin, so that the reasonable arrangement of various auxiliary equipment is facilitated, the utilization rate of the cabin is improved, the selective reduction catalyst is set to be of an integral U-shaped structure on the basis, compact horizontal mounting of the selective reduction catalyst is realized, and the upper part of the diesel engine and the position of the selective reduction catalyst are both positioned on the lowest equipment mounting platform in the cabin.
Preferably, the catalyst inlet pipe and the catalyst outlet pipe are arranged in parallel relative to the equipment mounting platform.
Preferably, the lower end of the selective reduction catalyst, the lower side of the catalyst air inlet pipe and the lower side of the catalyst exhaust pipe are respectively provided with a plurality of feet, and the feet are fixed on the lowest equipment mounting platform in the cabin.
In the invention, a stand column is connected between two upper and lower adjacent equipment mounting platforms, a plurality of side legs are respectively arranged on the outer side of an air inlet pipe of a catalyst and the outer side of an air outlet pipe of the catalyst, and the side legs are fixed on the stand column.
Preferably, two ends of the catalytic converter air inlet pipe and the catalytic converter air outlet pipe are respectively provided with an elbow, and the side legs are connected to the elbows.
Preferably, two ends of a bent pipe positioned at the connecting end of the catalytic converter air inlet pipe and the selective reduction catalytic converter are respectively provided with a corrugated pipe connected with the selective reduction catalytic converter and a corrugated pipe connected with the catalytic converter air inlet pipe; the two ends of the bent pipe positioned at the connection end of the catalytic converter exhaust pipe and the selective reduction catalytic converter are respectively provided with a corrugated pipe connected with the selective reduction catalytic converter and a corrugated pipe connected with the catalytic converter exhaust pipe.
Preferably, a bellows connected with the elbow is arranged on an air inlet of the catalytic converter air inlet pipe, and a bellows connected with the elbow is arranged on an air outlet of the catalytic converter air outlet pipe.
The arrangement of the bent pipe, the corrugated pipe, the footing and the side feet on the air inlet pipe and the air outlet pipe of the catalytic converter greatly facilitates the installation and connection of the selective reduction catalytic converter.
In the invention, the air inlet of the catalytic converter air inlet pipe and the air outlet of the catalytic converter air outlet pipe face to the inner side of the U-shaped opening of the integral U-shaped structure respectively.
Preferably, the SCR is a high pressure type selective catalytic reduction system (HPSCR), the diesel engine exhaust pipe is connected to the catalyst intake pipe, and the catalyst exhaust pipe is connected to an exhaust gas inlet of an exhaust gas turbocharger on the diesel engine.
The air inlet of the catalytic converter air inlet pipe and the air outlet of the catalytic converter exhaust pipe are respectively towards the inner side of the U-shaped opening of the integral U-shaped structure, so that the integral structure of the selective reduction catalytic converter is more compact, and the selective reduction catalytic converter can be well matched and connected with the exhaust pipe on a diesel engine and the exhaust inlet of the exhaust turbocharger.
Preferably, the diesel engine is mounted in the middle of the bottom deck, and the selective reduction catalyst is mounted on the side of the hull on the lowest equipment mounting platform in the cabin.
In the invention, a urea solution injection inlet is arranged on the air inlet pipe of the catalyst.
The beneficial effects of the invention are as follows:
firstly, the arrangement structure in the engine room of the main engine SCR for the medium and small-sized ships is beneficial to the reasonable arrangement of various auxiliary equipment by arranging the multi-layer equipment mounting platform in the engine room of the ships, so that the utilization rate of the engine room is improved, the selective reduction catalyst is arranged into an integral U-shaped structure on the basis, the compact horizontal installation of the selective reduction catalyst is realized, and the upper part of the diesel engine and the position of the selective reduction catalyst are both positioned on the lowest equipment mounting platform in the engine room.
Secondly, the arrangement structure in the engine room of the main engine SCR for the middle and small-sized ships is characterized in that the arrangement of the bent pipe, the corrugated pipe, the footing and the side feet on the air inlet pipe and the air outlet pipe of the catalytic converter greatly facilitates the installation and connection of the selective reduction catalytic converter.
Thirdly, according to the arrangement structure in the engine room of the main engine SCR for the middle and small-sized ships, the air inlet of the air inlet pipe of the catalyst and the air outlet of the air outlet pipe of the catalyst are respectively towards the inner side of the U-shaped opening of the integral U-shaped structure, so that the integral structure of the selective reduction catalyst is more compact, and the selective reduction catalyst can be well matched and connected with the air outlet pipe of a diesel engine and the exhaust inlet of an exhaust turbocharger.
Drawings
FIG. 1 is a schematic illustration of a host SCR cabin interior arrangement for a small and medium sized vessel in accordance with the present invention;
fig. 2 is a schematic structural view of the selective reduction catalyst in fig. 1.
In the figure: 1. cabin, 2, diesel engine, 3, selective reduction catalyst, 4, catalyst intake pipe, 5, catalyst exhaust pipe, 6, bottom deck, 7, top deck, 8, equipment mounting platform, 9, footing, 10, side foot, 11, return bend, 12, bellows, 13, hull.
Detailed Description
The following describes the embodiments of the present invention further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
An embodiment of a main engine SCR cabin internal arrangement structure for a small and medium-sized ship according to the invention is shown in fig. 1 to 2, and comprises a cabin 1, a diesel engine 2 arranged in the cabin 1, and a selective reduction catalyst 3 connected with an exhaust pipe of the diesel engine 2, wherein two ends of the selective reduction catalyst 3 are respectively connected with a catalyst air inlet pipe 4 and a catalyst exhaust pipe 5, the catalyst air inlet pipe 4 and the catalyst exhaust pipe 5 are connected with the selective reduction catalyst 3 to form an integral U-shaped structure, a plurality of layers of equipment mounting platforms 8 are respectively arranged between a bottom deck 6 and a top deck 7 of the cabin 1 according to the upper and lower positions in the cabin 1, the selective reduction catalyst 3 is mounted on the lowest layer of equipment mounting platforms 8 in the cabin 1, the diesel engine 2 is mounted on the cabin bottom deck 6, and the upper part of the diesel engine 1 is exposed on the lowest layer of equipment mounting platforms 8 in the cabin 1.
In the technical scheme, the multi-layer equipment mounting platform 8 is arranged in the ship cabin 1, so that the reasonable arrangement of various auxiliary equipment is facilitated, the utilization rate of the cabin 1 is improved, the selective reduction catalyst 3 is arranged to be of an integral U-shaped structure on the basis, the compact horizontal mounting of the selective reduction catalyst 3 is realized, and the upper part of the diesel engine 2 and the position of the selective reduction catalyst 3 are both positioned on the lowest layer of equipment mounting platform 8 in the cabin 1, and the same-platform arrangement structure of the upper part of the diesel engine 2 and the selective reduction catalyst 3 is greatly convenient for installation connection of the selective reduction catalyst 3 and the diesel engine 2 on one hand, and is also beneficial for equipment maintenance personnel to observe and maintain the application states of the diesel engine 2 and the selective reduction catalyst 3.
Preferably, the catalyst intake pipe 4 and the catalyst exhaust pipe 5 are arranged in parallel with respect to the equipment mounting platform 8.
Preferably, a plurality of feet 9 are respectively arranged at the lower end of the selective reduction catalyst 3, the lower side of the catalyst air inlet pipe 4 and the lower side of the catalyst air outlet pipe 5, and the feet 9 are fixed on the lowest equipment mounting platform 8 in the engine room 1.
In this embodiment, a column is connected between two vertically adjacent equipment mounting platforms 8, a plurality of side legs 10 are respectively disposed on the outer side of the catalytic converter air inlet pipe 4 and the outer side of the catalytic converter air outlet pipe 5, and the side legs 10 are fixed on the column.
Preferably, two ends of the catalytic converter air inlet pipe 4 and the catalytic converter air outlet pipe are respectively provided with an elbow pipe 11, and the side legs 10 are connected to the elbow pipe 11.
Preferably, two ends of a bent pipe 11 positioned at the connecting end of the catalytic converter air inlet pipe 4 and the selective reduction catalytic converter 3 are respectively provided with a corrugated pipe 12 connected with the selective reduction catalytic converter 3 and a corrugated pipe 12 connected with the catalytic converter air inlet pipe 4; corrugated pipes 12 connected to the selective reduction catalyst 3 and corrugated pipes 12 connected to the catalyst exhaust pipe 5 are respectively provided at both ends of a bent pipe 11 located at the connection end of the catalyst exhaust pipe 5 and the selective reduction catalyst 3.
Preferably, a bellows 12 connected to the elbow 11 is provided at an intake port of the catalyst intake pipe 4, and a bellows 12 connected to the elbow 11 is provided at an exhaust port of the catalyst exhaust pipe 5.
The arrangement of the bent pipe 11, the corrugated pipe 12, the footing 9 and the side feet 10 on the catalytic converter air inlet pipe 4 and the catalytic converter air outlet pipe 5 greatly facilitates the installation and connection of the selective reduction catalytic converter 3.
In this embodiment, the air inlet of the catalytic converter air inlet pipe 4 and the air outlet of the catalytic converter air outlet pipe 5 face the inner side of the U-shaped opening of the overall U-shaped structure.
Preferably, the SCR is a high pressure type selective catalytic reduction system (HPSCR), the exhaust pipe of the diesel engine 2 is connected to the catalyst intake pipe 4, and the catalyst exhaust pipe 5 is connected to an exhaust gas inlet of an exhaust gas turbocharger on the diesel engine 2.
The air inlet of the catalytic converter air inlet pipe 4 and the air outlet of the catalytic converter air outlet pipe 5 face the inner side of the U-shaped opening of the integral U-shaped structure respectively, so that the integral structure of the selective reduction catalytic converter 3 is more compact, and the selective reduction catalytic converter can be well matched and connected with the air outlet pipe of the diesel engine 2 and the exhaust inlet of the exhaust turbocharger.
Preferably, the diesel engine 2 is mounted at the middle part of the bottom deck 6, and the selective reduction catalyst 3 is mounted on the side of the hull 13 on the lowest equipment mounting platform 8 in the nacelle 1.
In this embodiment, the catalyst intake pipe 4 is provided with a urea solution injection inlet.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (5)
1. The arrangement structure in the engine room of the main engine SCR for the middle and small-sized ships is characterized by comprising an engine room, a diesel engine arranged in the engine room and a selective reduction catalyst connected with a diesel engine exhaust pipe, wherein two ends of the selective reduction catalyst are respectively connected with a catalyst air inlet pipe and a catalyst exhaust pipe, the catalyst air inlet pipe, the catalyst exhaust pipe and the selective reduction catalyst are connected to form an integral U-shaped structure, a plurality of layers of equipment installation platforms are respectively arranged between a bottom deck and a top deck of the engine room in the engine room according to the upper and lower positions, the selective reduction catalyst is arranged on the lowest layer of equipment installation platform in the engine room, the diesel engine is arranged on the bottom deck of the engine room, and the upper part of the diesel engine is exposed on the lowest layer of equipment installation platform in the engine room;
the catalyst air inlet pipe and the catalyst air outlet pipe are arranged in parallel relative to the equipment mounting platform; a stand column is connected between two upper and lower adjacent equipment mounting platforms, a plurality of side legs are respectively arranged on the outer side of the catalytic converter air inlet pipe and the outer side of the catalytic converter air outlet pipe, and the side legs are fixed on the stand column; two ends of the catalytic converter air inlet pipe and the catalytic converter air outlet pipe are respectively provided with an elbow, and the side legs are connected to the elbows; two ends of a bent pipe positioned at the connecting end of the catalytic converter air inlet pipe and the selective reduction catalytic converter are respectively provided with a corrugated pipe connected with the selective reduction catalytic converter and a corrugated pipe connected with the catalytic converter air inlet pipe; two ends of an elbow pipe positioned at the connection end of the catalytic converter exhaust pipe and the selective reduction catalytic converter are respectively provided with a corrugated pipe connected with the selective reduction catalytic converter and a corrugated pipe connected with the catalytic converter exhaust pipe; the corrugated pipe connected with the bent pipe is arranged on an air inlet of the air inlet pipe of the catalyst, and the corrugated pipe connected with the bent pipe is arranged on an air outlet of the air outlet pipe of the catalyst.
2. The main engine SCR cabin interior arrangement structure for a small and medium sized ship according to claim 1, wherein the lower end of the selective reduction catalyst, the lower side of the catalyst intake pipe and the lower side of the catalyst exhaust pipe are respectively provided with a plurality of feet, and the feet are fixed on the lowest equipment mounting platform in the cabin.
3. The main engine SCR cabin interior arrangement structure for small and medium sized vessels according to claim 1, wherein the air inlet of the catalyst air inlet pipe and the air outlet of the catalyst exhaust pipe are respectively directed to the inner side of the U-shaped opening of the integral U-shaped structure.
4. The arrangement in a main engine SCR nacelle for a small and medium sized vessel as defined in claim 1, wherein the SCR is a high pressure type selective catalytic reduction system, the exhaust pipe of the diesel engine is connected to the intake pipe of the catalyst, and the exhaust pipe of the catalyst is connected to the exhaust inlet of an exhaust turbocharger on the diesel engine.
5. A main engine SCR cabin interior arrangement for small and medium sized vessels as defined in claim 1 wherein said diesel engine is mounted in the middle of said bottom deck and said selective reduction catalyst is mounted to the hull side of the lowermost equipment mounting platform in said cabin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910812234.9A CN110578580B (en) | 2019-08-30 | 2019-08-30 | Main engine SCR cabin internal arrangement structure for small and medium-sized ships |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910812234.9A CN110578580B (en) | 2019-08-30 | 2019-08-30 | Main engine SCR cabin internal arrangement structure for small and medium-sized ships |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110578580A CN110578580A (en) | 2019-12-17 |
| CN110578580B true CN110578580B (en) | 2023-12-26 |
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ID=68812101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910812234.9A Active CN110578580B (en) | 2019-08-30 | 2019-08-30 | Main engine SCR cabin internal arrangement structure for small and medium-sized ships |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110578580B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012240446A (en) * | 2011-05-16 | 2012-12-10 | Sumitomo Heavy Industries Marine & Engineering Co Ltd | Ship |
| CN105781760A (en) * | 2016-03-24 | 2016-07-20 | 上海海事大学 | System and method for reducing NOx emission of marine diesel engine |
| CN108757125A (en) * | 2018-06-19 | 2018-11-06 | 中国船舶重工集团柴油机有限公司 | A kind of improved selective catalytic reduction device suitable for boat diesel engine |
| CN110090555A (en) * | 2019-03-29 | 2019-08-06 | 哈尔滨工程大学 | A kind of opposed embedded high-voltage SCR system suitable for twin turbines marine low speed diesel engine |
-
2019
- 2019-08-30 CN CN201910812234.9A patent/CN110578580B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012240446A (en) * | 2011-05-16 | 2012-12-10 | Sumitomo Heavy Industries Marine & Engineering Co Ltd | Ship |
| CN105781760A (en) * | 2016-03-24 | 2016-07-20 | 上海海事大学 | System and method for reducing NOx emission of marine diesel engine |
| CN108757125A (en) * | 2018-06-19 | 2018-11-06 | 中国船舶重工集团柴油机有限公司 | A kind of improved selective catalytic reduction device suitable for boat diesel engine |
| CN110090555A (en) * | 2019-03-29 | 2019-08-06 | 哈尔滨工程大学 | A kind of opposed embedded high-voltage SCR system suitable for twin turbines marine low speed diesel engine |
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| Publication number | Publication date |
|---|---|
| CN110578580A (en) | 2019-12-17 |
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