CN210829443U - Arrangement structure in main engine SCR engine room for small and medium-sized ships - Google Patents
Arrangement structure in main engine SCR engine room for small and medium-sized ships Download PDFInfo
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- CN210829443U CN210829443U CN201921427094.5U CN201921427094U CN210829443U CN 210829443 U CN210829443 U CN 210829443U CN 201921427094 U CN201921427094 U CN 201921427094U CN 210829443 U CN210829443 U CN 210829443U
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- catalyst
- pipe
- engine room
- selective reduction
- scr
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- 239000003054 catalyst Substances 0.000 claims abstract description 170
- 238000009434 installation Methods 0.000 claims abstract description 28
- 238000006722 reduction reaction Methods 0.000 claims description 68
- 238000010531 catalytic reduction reaction Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 15
- 108010066057 cabin-1 Proteins 0.000 description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 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
- 238000005034 decoration Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910052815 sulfur oxide Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010586 diagram Methods 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
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Abstract
The utility model relates to the technical field of ships, it discloses a layout structure in host computer SCR cabin for middle-size and small-size boats and ships, including cabin and the diesel engine who sets up in the cabin and the selective reduction catalyst converter of connecting the diesel engine blast pipe, the both ends of selective reduction catalyst converter are connected with catalyst converter intake pipe and catalyst converter blast pipe respectively, and the catalyst converter intake pipe, become whole U type structure after catalyst converter blast pipe is connected with the selective reduction catalyst converter, be located the equipment fixing platform that sets up a plurality of layers respectively between the bottom deck and the top deck of cabin in the cabin, the selective reduction catalyst converter is installed on the one deck equipment fixing platform below in the cabin, diesel engine installs on the deck of cabin bottom, and diesel engine's upper portion exposes on the one deck equipment fixing platform below in the cabin. The utility model discloses a compact installation of selective reduction catalyst converter in the cabin has reduced installation cost simultaneously to the operation maintenance of SCR system has been made things convenient for.
Description
Technical Field
The utility model relates to a boats and ships technical field, concretely relates to arrangement structure in host computer SCR cabin for middle-size and small-size boats and ships.
Background
Marine diesel engines produce exhaust gas during operation, which can pose serious hazards to the marine atmosphere and port environment. In order to reduce the influence of diesel engine exhaust gas on the atmosphere and the environment, large ships in the prior art are generally provided with a Selective Catalytic Reduction (SCR) system, the exhaust gas is treated by the SCR system and then discharged, and sulfur oxides (SOx), (NOx) nitrogen oxides and particulate matters are effectively eliminated, so that the aim of protecting the marine atmosphere and the port environment is fulfilled.
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 access port of a urea liquid injection device is arranged on the catalyst air inlet pipe. When the SCR system works, exhaust gas discharged by a diesel engine firstly enters an air inlet pipe of the catalyst, enters the selective reduction catalyst after being mixed and reacted with a reducing agent urea solution, and is discharged from an exhaust pipe of the catalyst after being catalyzed and reacted by the catalyst. Currently, SCR systems are deployed primarily on large vessels.
In the prior art, the conventional installation mode of the selective reduction catalyst of a large ship in a cabin is vertical installation. Specifically, the selective reduction catalyst is vertically arranged above the diesel engine, and a catalyst air inlet pipe 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 disadvantages that: the height of the selective reduction catalyst is high, and the air inlet pipe of the catalyst also needs to reach a certain design length, so that the space occupied by the catalyst is high when the catalyst is vertically arranged, and the catalyst cannot be suitable for arrangement in a small and medium-sized ship engine room. If it is considered to carry out a conventional horizontal installation of the selective reduction catalyst, the requirements are likewise not met due to the limitations of the horizontal space.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a host computer SCR cabin arrangement structure for middle-size and small-size boats and ships aims at realizing the compact installation of selective reduction catalyst converter in the cabin, reduces installation cost simultaneously to make things convenient for the operation maintenance of SCR system. The specific technical scheme is as follows:
an arrangement structure in a main engine SCR engine room for small and medium-sized ships comprises an engine room, a diesel engine arranged in the engine room and a selective reduction catalyst connected with an exhaust pipe of the diesel engine, the two ends of the selective reduction catalyst are respectively connected with a catalyst inlet pipe and a catalyst exhaust pipe, and the catalyst inlet pipe and the catalyst exhaust pipe are connected with the selective reduction catalyst 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 equipment installation platform in the engine room, the diesel engine is arranged on a deck at the bottom of the engine room, and the upper part of the diesel engine is exposed on the lowest equipment mounting platform in the engine room.
Among the above-mentioned technical scheme, through set up multilayer equipment mounting platform in the ship cabin, thereby be favorable to the rational arrangement of various auxiliary assembly to improve the utilization ratio of cabin, set up the selective reduction catalyst converter into whole U type structure again on this basis, the horizontal installation of compact of selective reduction catalyst converter has been realized, and because the upper portion position of diesel engine and the position of selective reduction catalyst converter all are located the lowest one deck equipment mounting platform in the cabin, this kind of upper portion of diesel engine and selective reduction catalyst converter with the platform arrangement structure, on the one hand, make things convenient for the erection joint of selective reduction catalyst converter and diesel engine greatly, also be favorable to the observation and the maintenance of equipment maintainer to diesel engine and selective reduction catalyst converter application state.
Preferably, the catalyst inlet pipe and the catalyst outlet pipe are arranged in parallel with respect 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 installation platform in the engine room.
The utility model discloses in, be connected with the stand between two adjacent equipment fixing platforms from top to bottom, the catalyst converter intake pipe outside with the outside of catalyst converter blast pipe is provided with the side foot of a plurality of quantity respectively, the side foot is fixed on the stand.
Preferably, bent pipes are respectively arranged at two ends of the catalyst inlet pipe and the catalyst exhaust pipe, and the side legs are connected to the bent pipes.
Preferably, a corrugated pipe connected with the selective reduction catalyst and a corrugated pipe connected with the catalyst inlet pipe are respectively arranged at two ends of an elbow pipe positioned at the connecting end of the catalyst inlet pipe and the selective reduction catalyst; the two ends of the elbow pipe positioned at the connecting end of the catalyst exhaust pipe and the selective reduction catalyst are respectively provided with a corrugated pipe connected with the selective reduction catalyst and a corrugated pipe connected with the catalyst exhaust pipe.
Preferably, a corrugated pipe connected with the elbow pipe is arranged on the air inlet of the catalyst inlet pipe, and a corrugated pipe connected with the elbow pipe is arranged on the air outlet of the catalyst exhaust pipe.
The arrangement of the bent pipe, the corrugated pipe, the bottom foot and the side foot on the catalyst inlet pipe and the catalyst exhaust pipe greatly facilitates the installation and connection of the selective reduction catalyst.
The utility model discloses in, the air inlet of catalyst converter intake pipe with the gas vent of catalyst converter blast pipe is respectively towards the inboard of the U type mouth of whole U type structure.
Preferably, the SCR is a high pressure 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 catalyst air inlet pipe and the exhaust port of the catalyst exhaust pipe face the inner side of the U-shaped port of the integral U-shaped structure respectively, 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 an exhaust pipe on a diesel engine and an exhaust gas inlet of an exhaust gas turbocharger.
Preferably, the diesel engine is installed in the middle of the bottom deck, and the selective reduction catalyst is installed on the side of the lowest equipment installation platform in the engine room, which is close to the ship body.
The utility model discloses in, be provided with urea liquid injection mouth in the catalyst converter intake pipe.
The utility model has the advantages that:
first, the utility model relates to an arrangement structure in the SCR engine room of a main engine of a small and medium-sized ship, by arranging a plurality of layers of equipment mounting platforms in the ship engine room, the reasonable arrangement of various auxiliary equipment is facilitated, thereby improving the utilization rate of the engine room, on the basis, the selective reduction catalyst is arranged into an integral U-shaped structure, so that the compact horizontal installation of the selective reduction catalyst is realized, and because the upper position 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, the same-platform arrangement structure of the upper part of the diesel engine and the selective reduction catalyst greatly facilitates the installation and connection of the selective reduction catalyst and the diesel engine and is also beneficial to the observation and maintenance of the diesel engine and the selective reduction catalyst by equipment maintenance personnel.
Second, the utility model discloses a setting of return bend, bellows and footing, side foot on catalyst converter intake pipe and catalyst converter blast pipe for arrangement structure in the host computer SCR engine room of middle-size and small-size boats and ships has made things convenient for the erection joint of selective reduction catalyst converter greatly.
Third, the utility model discloses a layout structure in host computer SCR cabin for middle-size and small-size boats and ships, the air inlet of catalyst converter intake pipe and the gas vent of catalyst converter blast pipe face respectively the inboard of the U type mouth of whole U type structure for the overall structure of selective reduction catalyst converter is more compact, and can realize good accordant connection with the blast pipe on the diesel engine and exhaust gas turbocharger's waste gas inlet port.
Drawings
Fig. 1 is a schematic structural diagram of an arrangement structure in a main engine SCR engine room for a small and medium sized ship of the present invention;
fig. 2 is a schematic structural view of the selective reduction catalyst in fig. 1.
In the figure: 1. the device comprises a cabin, 2, a diesel engine, 3, a selective reduction catalyst, 4, a catalyst air inlet pipe, 5, a catalyst exhaust pipe, 6, a bottom deck, 7, a top deck, 8, an equipment installation platform, 9, bottom feet, 10, side feet, 11, bent pipes, 12, corrugated pipes, 13 and a ship body.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 1 to 2 show an embodiment of an arrangement structure in a main engine SCR engine room for a small and medium sized ship according to the present invention, which includes a cabin 1, a diesel engine 2 disposed in the cabin 1, and a selective reduction catalyst 3 connected to an exhaust pipe of the diesel engine 2, wherein two ends of the selective reduction catalyst 3 are respectively connected to a catalyst intake pipe 4 and a catalyst exhaust pipe 5, the catalyst intake pipe 4, the catalyst exhaust pipe 5 and the selective reduction catalyst 3 are connected to form an integral U-shaped structure, a plurality of layers of equipment installation platforms 8 are disposed in the cabin 1 between a bottom deck 6 and a top deck 7 of the cabin 1 according to the upper and lower positions, the selective reduction catalyst 3 is installed on the lowest layer of equipment installation platform 8 in the cabin 1, the diesel engine 2 is installed on the bottom deck 6 of the cabin, and the upper part of the diesel engine 1 is exposed on the lowest equipment mounting platform 8 in the nacelle 1.
Among the above-mentioned technical scheme, through set up multilayer equipment fixing platform 8 in marine engine room 1, thereby be favorable to the rational arrangement of various auxiliary assembly to improve the utilization ratio of engine room 1, set up selective reduction catalyst converter 3 into whole U type structure again on this basis, the horizontal installation of compact of selective reduction catalyst converter 3 has been realized, and because the upper portion position of diesel engine 2 and the position of selective reduction catalyst converter 3 all are located the one deck equipment fixing platform 8 of the bottom in engine room 1, this kind of same platform arrangement structure of diesel engine 2's upper portion and selective reduction catalyst converter 3, on the one hand made things convenient for the erection joint of selective reduction catalyst converter 3 with diesel engine 2 greatly, also be favorable to the observation and the maintenance of equipment maintainer to diesel engine 2 and selective reduction catalyst converter 3 application state.
Preferably, the catalyst inlet pipe 4 and the catalyst outlet pipe 5 are arranged parallel to the device mounting platform 8.
Preferably, the lower end of the selective reduction catalyst 3, the lower side of the catalyst inlet pipe 4 and the lower side of the catalyst exhaust pipe 5 are respectively provided with a plurality of feet 9, and the feet 9 are fixed on the lowest equipment installation platform 8 in the nacelle 1.
In this embodiment, a column is connected between two vertically adjacent equipment mounting platforms 8, a plurality of side legs 10 are respectively provided on the outer side of the catalyst intake pipe 4 and the outer side of the catalyst exhaust pipe 5, and the side legs 10 are fixed to the column.
Preferably, bent pipes 11 are respectively arranged at two ends of the catalyst inlet pipe 4 and the catalyst exhaust pipe, and the side legs 10 are connected to the bent pipes 11.
Preferably, a corrugated pipe 12 connected with the selective reduction catalyst 3 and a corrugated pipe 12 connected with the catalyst inlet pipe 4 are respectively arranged at two ends of an elbow pipe 11 positioned at the connecting end of the catalyst inlet pipe 4 and the selective reduction catalyst 3; a corrugated pipe 12 connected to the selective reduction catalyst 3 and a corrugated pipe 12 connected to the catalyst exhaust pipe 5 are respectively provided at both ends of an elbow pipe 11 located at a connection end of the catalyst exhaust pipe 5 and the selective reduction catalyst 3.
Preferably, a bellows 12 connected to the elbow pipe 11 is provided at an intake port of the catalyst intake pipe 4, and a bellows 12 connected to the elbow pipe 11 is provided at an exhaust port of the catalyst exhaust pipe 5.
The arrangement of the elbow pipe 11, the corrugated pipe 12, the bottom foot 9 and the side foot 10 on the catalyst air inlet pipe 4 and the catalyst exhaust pipe 5 greatly facilitates the installation and connection of the selective reduction catalyst 3.
In this embodiment, the air inlet of the catalyst inlet pipe 4 and the air outlet of the catalyst exhaust pipe 5 face the inside of the U-shaped opening of the integral U-shaped structure, respectively.
Preferably, the SCR is a high pressure 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 catalyst air inlet pipe 4 and the exhaust port of the catalyst exhaust 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 catalyst 3 is more compact, and the selective reduction catalyst can be well matched and connected with the exhaust pipe on the diesel engine 2 and the exhaust gas inlet of the exhaust gas turbocharger.
Preferably, the diesel engine 2 is installed at a middle portion of the bottom deck 6, and the selective reduction catalyst 3 is installed at a side of the lowest equipment installation platform 8 in the nacelle 1, which is close to the hull 13.
In this embodiment, the catalyst inlet pipe 4 is provided with a urea solution injection inlet.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. An arrangement structure in a main engine SCR engine room for small and medium-sized ships is characterized by comprising an engine room, a diesel engine arranged in the engine room and a selective reduction catalyst connected with an exhaust pipe of the diesel engine, the two ends of the selective reduction catalyst are respectively connected with a catalyst inlet pipe and a catalyst exhaust pipe, and the catalyst inlet pipe and the catalyst exhaust pipe are connected with the selective reduction catalyst 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 equipment installation platform in the engine room, the diesel engine is arranged on a deck at the bottom of the engine room, and the upper part of the diesel engine is exposed on the lowest equipment mounting platform in the engine room.
2. The arrangement structure in the SCR engine room of the small and medium-sized ship as claimed in claim 1, wherein the catalyst inlet pipe and the catalyst outlet pipe are arranged in parallel with respect to the equipment installation platform.
3. The arrangement structure in the SCR engine room of the small and medium size ship as claimed in claim 2, wherein the lower end of the selective reduction catalyst, the lower side of the catalyst 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 installation platform in the engine room.
4. The arrangement structure in the SCR engine room of the small and medium size ship as claimed in claim 2, wherein a vertical column is connected between two adjacent equipment installation platforms, a plurality of side legs are respectively arranged on the outer side of the catalyst air inlet pipe and the outer side of the catalyst exhaust pipe, and the side legs are fixed on the vertical column.
5. The arrangement structure in the SCR engine room of the small and medium size ship as claimed in claim 4, wherein two ends of the catalyst inlet pipe and the catalyst outlet pipe are respectively provided with a bent pipe, and the side legs are connected to the bent pipes.
6. The arrangement structure in the SCR engine room of the main engine of the small and medium-sized ship as claimed in claim 5, wherein a corrugated pipe connected with the selective reduction catalyst and a corrugated pipe connected with the catalyst inlet pipe are respectively arranged at two ends of a bent pipe at the connection end of the catalyst inlet pipe and the selective reduction catalyst; the two ends of the elbow pipe positioned at the connecting end of the catalyst exhaust pipe and the selective reduction catalyst are respectively provided with a corrugated pipe connected with the selective reduction catalyst and a corrugated pipe connected with the catalyst exhaust pipe.
7. The arrangement structure in the SCR engine room of claim 5, wherein a corrugated pipe connected with the elbow is arranged on the air inlet of the catalyst inlet pipe, and a corrugated pipe connected with the elbow is arranged on the air outlet of the catalyst outlet pipe.
8. The arrangement structure in the SCR engine room of claim 7, wherein an air inlet of the catalyst air inlet pipe and an air outlet of the catalyst exhaust pipe face to the inner side of the U-shaped opening of the integral U-shaped structure respectively.
9. The arrangement structure in the SCR engine room of claim 1, wherein the SCR is a high-pressure selective catalytic reduction system, the diesel engine exhaust pipe is connected with the catalyst intake pipe, and the catalyst exhaust pipe is connected with the exhaust gas inlet of an exhaust gas turbocharger on the diesel engine.
10. The arrangement structure in the SCR engine room of claim 1, wherein the diesel engine is installed in the middle of the bottom deck, and the selective reduction catalyst is installed on the side, close to the ship body, of the lowest equipment installation platform in the engine room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921427094.5U CN210829443U (en) | 2019-08-30 | 2019-08-30 | Arrangement structure in main engine SCR engine room for small and medium-sized ships |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921427094.5U CN210829443U (en) | 2019-08-30 | 2019-08-30 | Arrangement structure in main engine SCR engine room for small and medium-sized ships |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210829443U true CN210829443U (en) | 2020-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921427094.5U Withdrawn - After Issue CN210829443U (en) | 2019-08-30 | 2019-08-30 | Arrangement structure in main engine SCR engine room for small and medium-sized ships |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210829443U (en) |
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2019
- 2019-08-30 CN CN201921427094.5U patent/CN210829443U/en not_active Withdrawn - After Issue
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200623 Effective date of abandoning: 20231226 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20200623 Effective date of abandoning: 20231226 |
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| AV01 | Patent right actively abandoned |