Exhaust system of ship in ice area and ship with exhaust system

Abstract

The invention provides an ice region ship exhaust system and a ship with the same. The ice region ship exhaust system comprises a main engine, a plurality of diesel generating sets and a plurality of waste gas purging fans. The main machine exhausts smoke from a top chimney through a pipeline; the diesel generating set exhausts flue gas from the chimney at the top through a pipeline; and each waste gas purging machine is used for purging a pipeline of the diesel generating set. The LNG gas which is not completely combusted in the pipeline is exhausted under the action of the main machine fan and the waste gas purging fan, and the technical problem that in the prior art, a dealing system for avoiding the detonation and explosion phenomena of the LNG dual-fuel chimney is lacked is solved.

Description

Technical field:

[0001] The present invention relates to the technical field of flue gas treatment, and in particular to an exhaust system for an ice-covered ship and the ship thereof. Background technology:

[0002] To protect the environment and reduce operating costs, this ice-faring vessel uses an LNG dual-fuel system for its main and auxiliary engines. When the LNG-fueled main and auxiliary engines are shut down, unburned LNG gas can remain inside the chimney pipes, potentially causing deflagration and explosions, potentially damaging the vessel.

[0003] There is an urgent need for an ice-going ship exhaust system and the ship thereof, which can help solve the technical problem that the existing technology lacks a response system to avoid deflagration and explosion phenomena caused by LNG dual-fuel chimneys. Summary of the invention:

[0004] In one embodiment, the present invention provides an exhaust system for ice-faring vessels, which discharges unburned LNG gas in the pipeline under the action of the main engine fan and the exhaust gas purge fan, helping to solve the technical problem of the existing technology lacking a response system to prevent deflagration and explosion in LNG dual-fuel chimneys.

[0005] The ice ship exhaust system includes a main engine and multiple diesel generator sets, as well as multiple exhaust gas purge fans;

[0006] The main engine discharges the smoke from the top chimney through the pipeline;

[0007] The diesel generator set discharges smoke from the chimney at the top through a pipeline;

[0008] Each exhaust gas blower blows the pipeline of the diesel generator set respectively.

[0009] In one embodiment, the pipelines of the diesel generator set and the main engine respectively enter the soot and rainwater collection cabinet through the condensate pipe.

[0010] In one embodiment, the cabin water supply system supplies water to the soot and rainwater collection tank.

[0011] In one embodiment, the ash and rainwater collection cabinet discharges the accumulated water into the bilge water storage tank through a bottom pipe.

[0012] In one embodiment, the pipeline of the diesel generator set is connected in series with an auxiliary spark arrester.

[0013] In one embodiment, the pipeline of the main engine is connected in series with the main engine exhaust gas economizer.

[0014] In one embodiment, the main engine and the diesel generator adopt an LNG dual fuel system.

[0015] In one embodiment, when the main engine burning LNG gas is shut down, the fan inside the main engine is started to blow the LNG remaining in the flue gas pipeline into the atmosphere.

[0016] In one embodiment, the distance from the outlet of the fan to the pipeline is 2 to 4 meters.

[0017] In one embodiment, the present invention further provides a ship having an ice-going vessel exhaust system, wherein the ship is provided with the ice-going vessel exhaust system as described above. Description of the drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of an exhaust system for an ice-going vessel according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of a first partial structure of an exhaust system for an ice-going vessel according to another embodiment of the present invention;

[0020] Figure 3 This is a second partial structural diagram of an exhaust system for an ice-going vessel according to another embodiment of the present invention;

[0021] Figure 4 This is a third partial structural diagram of an exhaust system for an ice-going vessel according to another embodiment of the present invention;

[0022] Figure 5 This is a fourth partial structural diagram of an exhaust system for an ice-going vessel according to another embodiment of the present invention;

[0023] Figure 6 FIG. 5 is a fifth partial structural diagram of an exhaust system for an ice-going vessel according to another embodiment of the present invention.

[0024] Reference numerals:

[0025] Host 1

[0026] Diesel generator set 2

[0027] Exhaust gas purge fan 3

[0028] Condensate pipe 4

[0029] Ash and rainwater collection cabinet 5

[0030] Engine room water supply system 6

[0031] Auxiliary engine spark arrester 7

[0032] Host exhaust gas economizer 8

[0033] Chimney 10 Specific implementation method:

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0036] These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0037] It should also be understood that although the present application has been described with reference to certain specific examples, those skilled in the art will be able to implement many other equivalent forms of the present application that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0038] The above and other aspects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0039] Specific embodiments of the present application will be described below with reference to the accompanying drawings; however, it should be understood that the embodiments described are merely examples of the present application and may be implemented in a variety of ways. Familiar and / or repetitive functions and structures are not described in detail to clarify the true intent based on the user's historical operations and to avoid obscuring the present application with unnecessary or redundant details. Therefore, the specific structural and functional details described herein are not intended to be limiting, but rather serve merely as a basis and representative basis for the claims to teach those skilled in the art to use the present application in a variety of ways with substantially any appropriate detailed structure.

[0040] This specification may use the phrases "in one embodiment," "in another embodiment," "in a further embodiment," or "in other embodiments," which may all refer to one or more of the same or different embodiments according to the present application.

[0041] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0043] These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0044] It should also be understood that although the present application has been described with reference to certain specific examples, those skilled in the art will be able to implement many other equivalent forms of the present application that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0045] The above and other aspects, features and advantages of the present application will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

[0046] Specific embodiments of the present application will be described below with reference to the accompanying drawings; however, it should be understood that the embodiments described are merely examples of the present application and may be implemented in a variety of ways. Familiar and / or repetitive functions and structures are not described in detail to clarify the true intent based on the user's historical operations and to avoid obscuring the present application with unnecessary or redundant details. Therefore, the specific structural and functional details described herein are not intended to be limiting, but rather serve merely as a basis and representative basis for the claims to teach those skilled in the art to use the present application in a variety of ways with substantially any appropriate detailed structure.

[0047] This specification may use the phrases "in one embodiment," "in another embodiment," "in a further embodiment," or "in other embodiments," which may all refer to one or more of the same or different embodiments according to the present application.

[0048] Figure 1 This is a schematic diagram of the overall structure of an exhaust system for an ice-going vessel according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a first partial structure of an exhaust system for an ice-going vessel according to another embodiment of the present invention; Figure 3 This is a second partial structural diagram of an exhaust system for an ice-going vessel according to another embodiment of the present invention; Figure 4 This is a third partial structural diagram of an exhaust system for an ice-going vessel according to another embodiment of the present invention; Figure 5 This is a fourth partial structural diagram of an exhaust system for an ice-going vessel according to another embodiment of the present invention; Figure 6 FIG. 5 is a fifth partial structural diagram of an exhaust system for an ice-going vessel according to another embodiment of the present invention.

[0049] like Figures 1 to 6 As shown, in one embodiment, the present invention provides an exhaust system for an ice-going vessel, the exhaust system comprising a main engine 1, a plurality of diesel generator sets 2, and a plurality of exhaust gas purge fans 3;

[0050] The main engine 1 discharges the smoke from the top chimney 10 through the pipeline;

[0051] The diesel generator set 2 discharges the flue gas from the top chimney 10 through a pipeline;

[0052] Each exhaust gas blower 3 blows the pipeline of the diesel generator set 2 respectively.

[0053] In the attached Figure 1Three different diesel generator sets 2 are provided. No matter the main engine 1 or the diesel generator set 2 is shut down, a large amount of combustible gas will remain in the pipelines of the main engine 1 and the diesel generator set 2 after the shutdown. In the application scenario of the ship, it will be ignited due to mechanical operation, resulting in deflagration, explosion and other phenomena. This helps to solve the technical problem that the existing technology lacks a response system to avoid deflagration and explosion phenomena in LNG dual-fuel chimneys.

[0054] In one embodiment, the pipelines of the diesel generator set 2 and the main engine 1 respectively enter the soot and rainwater collection cabinet 5 through the condensate pipe 4.

[0055] In this embodiment, the condensate pipes 4 are arranged in a row pipe manner.

[0056] In one embodiment, the cabin water supply system 6 supplies water to the soot and rainwater collection tank 5 .

[0057] In one embodiment, the ash and rainwater collection cabinet 5 discharges the accumulated water into the bilge water storage compartment through a bottom pipe.

[0058] In one embodiment, the pipeline of the diesel generator set 2 is connected in series with the auxiliary spark arrester 7 .

[0059] In one embodiment, the pipeline of the main engine 1 is connected in series with the main engine exhaust gas economizer 8 .

[0060] In one embodiment, the main engine 1 and the diesel generator 2 adopt an LNG dual fuel system.

[0061] In one embodiment, after the main engine 1 burning LNG gas is shut down, the fan inside the main engine 1 is started to blow the LNG remaining inside the flue gas pipeline into the atmosphere.

[0062] In one embodiment, the distance from the outlet of the fan to the pipeline is 2 to 4 meters.

[0063] In one embodiment, the present invention provides a ship having an ice-going ship exhaust system, wherein the ice-going ship exhaust system is installed on the ship.

[0064] When the auxiliary equipment burning LNG is shut down, immediately start the No. 1 exhaust gas purge blower to discharge the LNG gas accumulated in the pipeline into the atmosphere to ensure the safety of the pipeline.

[0065] When the main engine burning LNG gas is shut down, the fan inside the main engine starts and blows the LNG remaining in the flue gas pipeline into the atmosphere through QP001, QP111 and QP112.

[0066] Do not insulate the pipes at least 2 meters away from the fan unit.

[0067] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. An ice-going ship exhaust system, characterized in that: The ice ship exhaust system includes: A main engine (1) which discharges smoke from a top chimney (10) through a pipeline; A plurality of diesel generator sets (2), wherein the diesel generator sets (2) discharge smoke from the chimney (10) at the top through pipelines; A plurality of exhaust gas blowing fans (3), each exhaust gas blowing fan (3) blows the pipeline of the diesel generator set (2) respectively.

2. The ice-going vessel exhaust system according to claim 1, characterized in that: The pipelines of the diesel generator set (2) and the main engine (1) respectively enter the soot and rainwater collection cabinet (5) through the condensed water pipe (4).

3. The ice-going vessel exhaust system according to claim 2, characterized in that: The cabin water supply system (6) supplies water to the soot and rainwater collection cabinet (5).

4. The ice-going vessel exhaust system according to claim 3, characterized in that: The ash and rainwater collection cabinet (5) discharges the accumulated water into the bilge water storage compartment through the bottom pipeline.

5. The ice-going vessel exhaust system according to claim 4, characterized in that: The pipeline of the diesel generator set (2) is connected in series with an auxiliary spark arrester (7).

6. The ice-going vessel exhaust system according to claim 5, characterized in that: The pipeline of the main engine (1) is connected in series with the main engine exhaust gas economizer (8).

7. The ice-going vessel exhaust system according to claim 6, characterized in that: The main engine (1) and the diesel generator (2) adopt an LNG dual fuel system.

8. The ice-going vessel exhaust system according to claim 7, characterized in that: When the main engine (1) burning LNG gas is shut down, the fan inside the main engine (1) is started to blow the LNG remaining inside the flue gas pipeline into the atmosphere.

9. The ice-going vessel exhaust system according to claim 8, characterized in that: The distance from the outlet of the fan to the pipeline is 2 to 4 meters.

10. A ship with an ice-going ship exhaust system, characterized in that: The ship is provided with the ice-going ship exhaust system according to any one of claims 1 to 9.

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