CN211987682U

CN211987682U - Exhaust gas purification device for ship engine

Info

Publication number: CN211987682U
Application number: CN202020697535.XU
Authority: CN
Inventors: 李帅帅; 纪培国
Original assignee: Weihai Ocean Vocational College
Current assignee: Weihai Ocean Vocational College
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-11-24
Anticipated expiration: 2030-04-30

Abstract

The utility model discloses a marine engine exhaust gas purification device, including setting up in the casing of suitable position, the outer wall of casing is equipped with the intake pipe, the inside of intake pipe is equipped with the filtering mechanism who is arranged in filtering impurity in the waste gas, the top of casing is equipped with the water pump, the inside of casing is equipped with the desulfurization mechanism who is used for purifying the gaseous sulfur oxide in marine engine waste gas with water pump complex, the lower extreme of casing is equipped with the second cavity, the inside of second cavity is equipped with the denitration mechanism who is arranged in purifying nitrogen oxide gas in the engine waste gas. The utility model discloses rational in infrastructure, can clear away the impurity on the filter screen, and then improved exhaust gas filtration efficiency.

Description

Exhaust gas purification device for ship engine

Technical Field

The utility model relates to a marine engine technical field especially relates to a marine engine exhaust purification device.

Background

At present, marine boats and ships driving system is usually including diesel engine combustion unit, and the fuel that marine engine combustion unit used can produce the waste gas that has particulate matter, oxysulfide, nitrogen oxide etc. after the burning, can lead to the environment to receive the pollution when these waste gases are discharged into the atmosphere, and the waste gas desulfurization denitrification facility has played the important function to the environmental protection, but current marine engine exhaust gas purification device also has some problems, if:

1. the filter screen of the existing exhaust gas purification device of the ship engine is usually fixed in a box body and cannot move, so that impurities are accumulated on the filter screen for a long time, and the exhaust gas filtering effect is influenced;

2. among the current marine engine exhaust purification device, treatment facility such as desulfurization, denitration includes a plurality of units of mutually supporting, and a plurality of units are scattered to be set up in the different places of moving the facility, and then make and make manufacturing, installation, management, maintenance all have the inconvenient problem of operation, have reduced workman's work efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a ship engine exhaust gas purification device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a marine engine exhaust gas purification device, is including setting up in the casing of suitable position, the outer wall of casing is equipped with the intake pipe, the inside of intake pipe is equipped with the filtering mechanism who is arranged in filtering impurity in the waste gas, the top of casing is equipped with the water pump, the inside of casing is equipped with the desulfurization mechanism who is arranged in purifying marine engine waste gas sulfur oxide gas with the water pump complex, the lower extreme of casing is equipped with the second cavity, the inside of second cavity is equipped with the denitration mechanism who is arranged in purifying nitrogen oxide gas in the engine waste gas.

Preferably, filtering mechanism is including setting up in the inside rose box of intake pipe, the upper end of rose box is equipped with the recess, the inside of recess is rotated and is connected with the pivot, pivot outer fringe fixedly connected with case lid, the inside of rose box is equipped with two filter screens, two be equipped with the active carbon that is arranged in adsorbing solid impurity among the engine exhaust gas between the filter screen.

Preferably, the desulfurization mechanism includes a liquid guide pipe arranged at the right end of the water pump, a first cavity is arranged inside the casing, an overflow pipe is arranged at the tail end of the liquid guide pipe, the tail end of the overflow pipe penetrates through the outer wall of the casing and extends into the first cavity, an overflow cover is fixedly connected to the tail end of the overflow pipe, a plurality of spray headers used for spraying calcium oxide slurry into the first cavity are arranged at the bottom of the overflow cover, the overflow cover includes an overflow plate arranged inside the overflow cover, overflow ports are arranged inside the overflow plate, a plurality of overflow grooves are uniformly arranged around the overflow ports, two overflow holes are arranged at the bottoms of inner cavities of the overflow grooves, and the overflow holes are uniformly connected with the spray headers.

Preferably, the denitration mechanism comprises a U-shaped pipe arranged in a second chamber, the inside of the second chamber is provided with reducing agent ammonia for neutralization reaction with nitrogen oxides in engine exhaust gas, the top of the U-shaped pipe extends to the upper end of the second chamber, and the tail end of the U-shaped pipe extends to the inner bottom of the second chamber.

Preferably, the top wall of the casing is provided with an exhaust port, the inner wall of the second chamber is provided with an air outlet, the inner wall of the casing is provided with an air inlet, and the air inlet and the air outlet are connected with each other through a conduit in the casing.

Preferably, the side wall of the second chamber is provided with a second water outlet pipe for discharging liquid.

The utility model has the advantages that:

1. through setting up the rose box, can make the filter screen take out from the box in, and then can clear away the impurity on the filter screen, improved waste gas filtration efficiency.

2. Through setting up two cavities, can make a plurality of units set up on same mobile facilities, and then be applicable to actual installation and dismantlement well, improved workman's work efficiency.

Drawings

Fig. 1 is a schematic structural view of a marine engine exhaust gas purification device provided by the present invention;

fig. 2 is a top view of an exhaust gas purifying device for a marine engine according to the present invention;

fig. 3 is an enlarged view of a position a of the exhaust gas purifying device for the marine engine.

In the figure: the device comprises a machine shell 1, a liquid guide pipe 2, a first chamber 3, a spray header 4, a second chamber 5, a U-shaped pipe 6, a water pump 7, a first water outlet pipe 8, an air inlet pipe 9, an air inlet 10, an overflow groove 11, an exhaust port 12, an air outlet 13, a box cover 14, a filter box 15, a rotating shaft 16, a second water outlet pipe 17, an overflow pipe 18, an overflow port 19, an overflow hole 20, an overflow plate 21 and an overflow cover 22.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a marine engine exhaust gas purification device, including setting up in the casing 1 of suitable position, the outer wall of casing 1 is equipped with intake pipe 9, the inside of intake pipe 9 is equipped with the filtering mechanism who is arranged in filtering the impurity in the waste gas, the top of casing 1 is equipped with water pump 7, the inside of casing 1 is equipped with the desulfurization mechanism who is used for purifying sulfur oxide gas in marine engine waste gas with water pump 7 complex, the lower extreme of casing 1 is equipped with second cavity 5, the inside of second cavity 5 is equipped with the denitration mechanism who is used for purifying nitrogen oxide gas in the engine waste gas.

The utility model discloses in, filtering mechanism is including setting up in the inside rose box 15 of intake pipe 9, and the upper end of rose box 15 is equipped with the recess, and the inside of recess is rotated and is connected with

pivot

16, 16 outer fringe fixedly connected with case lids 14 of pivot, and the inside of rose box 15 is equipped with two filter screens, is equipped with the active carbon that is arranged in adsorbing solid impurity in the engine exhaust gas between two filter screens.

Specifically, the desulfurization mechanism comprises a liquid guide pipe 2 arranged at the right end of the water pump 7, a first chamber 3 is arranged inside the casing 1, an overflow pipe 18 is arranged at the tail end of the liquid guide pipe 2, the tail end of the overflow pipe 18 penetrates through the outer wall of the casing 1 and extends into the first chamber 3, an overflow cover 22 is fixedly connected at the tail end of the overflow pipe 18, a plurality of spray headers 4 used for spraying calcium oxide slurry into the first chamber 3 are arranged at the bottom of the overflow cover 22, the overflow cover 22 comprises an overflow plate 21 arranged inside the overflow cover, an overflow port 19 is arranged inside the overflow plate 21, a plurality of overflow grooves 11 are uniformly arranged around the overflow port 19, two overflow holes 20 are arranged at the bottoms of inner cavities of the overflow grooves 11, and the overflow holes 20 are uniformly connected with the spray headers 4, the calcium oxide slurry can be conveyed to the spray header 4 through the overflow holes 20 on the overflow launder 11, thereby completing the desulfurization process.

Specifically, denitration mechanism is including setting up in the inside U type pipe 6 of second chamber 5, and the inside of second chamber 5 is equipped with and is used for reducing agent ammonia with oxynitrides neutralization reaction in the engine exhaust gas, and the top of U type pipe 6 extends to the upper end of second chamber 5, and the end of U type pipe 6 extends to the interior bottom of second chamber 5, can make the inside reducing agent ammonia of oxynitride contact U type pipe 5 in the exhaust gas more fully.

Specifically, the top wall of the machine shell 1 is provided with an exhaust port 12, the inner wall of the second chamber 5 is provided with an air outlet 13, the inner wall of the machine shell 1 is provided with an air inlet 10, the air inlet 10 and the air outlet 13 are connected inside the machine shell 1 through a conduit, the side wall of the second chamber 5 is provided with a second water outlet pipe 17 for discharging liquid, and the accumulation of liquid in the reaction chamber is avoided.

When the utility model is used, firstly, the casing 1 is fixed on a proper position, then the waste gas of the external ship engine is conveyed into the air inlet pipe 9, the filter screen positioned in the filter box 15 can filter the impurities in the waste gas, further the impurities are precipitated in the filter box 15, the filtered waste gas enters the U-shaped pipe 6 through the air inlet pipe 9, further the nitrogen oxide gas in the waste gas and the reducing agent ammonia in the U-shaped pipe 5 are subjected to neutralization reaction, the generated water is retained in the second chamber 5, when reaching a certain amount, the waste gas flows out from the second water outlet pipe 17, the generated ammonia and the rest waste gas flow out from the air outlet 13, the waste gas flows into the first chamber 3 through the air guide pipe in the casing 1, the water pump 7 starts to operate, the external calcium oxide slurry is guided into the overflow groove 1 in the overflow cover 21 through the liquid guide pipe 2, further the overflow hole 20 on the overflow groove 11 conveys the calcium oxide slurry to the spray header 4, calcium oxide thick liquid through shower head 4 spraying reacts with the sulphide in the waste gas, and then accomplishes the desulfurization process, and remaining gas just can discharge through overflow mouth 19 after the reaction afterwards, through 12 exhaust gases in gas vent at last, and then has avoided the direct emission of waste gas to cause environmental pollution, when needs take out the filter screen, only need open case lid 14 through pivot 16, take out rose box 15 afterwards, and then can clear up the solid impurity on the filter screen.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a marine engine exhaust gas purification device, is including setting up in casing (1) of suitable position, its characterized in that, the outer wall of casing (1) is equipped with intake pipe (9), the inside of intake pipe (9) is equipped with the filtering mechanism who is arranged in filtering waste gas impurity, the top of casing (1) is equipped with water pump (7), the inside of casing (1) is equipped with the desulfurization mechanism who is used for purifying the gaseous sulfur oxide in marine engine waste gas with water pump (7) complex, the lower extreme of casing (1) is equipped with second cavity (5), the inside of second cavity (5) is equipped with the denitration mechanism who is arranged in purifying nitrogen oxide gas in the engine waste gas.

2. The exhaust gas purification device for the marine engine, as recited in claim 1, wherein the filtering mechanism comprises a filtering box (15) disposed inside the intake pipe (9), a groove is disposed at an upper end of the filtering box (15), a rotating shaft (16) is rotatably connected inside the groove, a box cover (14) is fixedly connected to an outer edge of the rotating shaft (16), two filtering nets are disposed inside the filtering box (15), and activated carbon for adsorbing solid impurities in the engine exhaust gas is disposed between the two filtering nets.

3. The exhaust gas purification device of the marine engine according to claim 1, wherein the desulfurization mechanism comprises a liquid guide pipe (2) arranged at the right end of the water pump (7), the inside of the housing (1) is provided with a first chamber (3), the end of the liquid guide pipe (2) is provided with an overflow pipe (18), the end of the overflow pipe (18) penetrates through the outer wall of the housing (1) and extends to the inside of the first chamber (3), the end of the overflow pipe (18) is fixedly connected with an overflow cover (22), the bottom of the overflow cover (22) is provided with a plurality of spray headers (4) for spraying calcium oxide slurry into the first chamber (3), the overflow cover (22) comprises an overflow plate (21) arranged inside, the inside of the overflow plate (21) is provided with an overflow port (19), and the periphery of the overflow port (19) is uniformly provided with a plurality of overflow slots (11), the bottom of the inner cavity of each overflow groove (11) is provided with two overflow holes (20), and the overflow holes (20) are fixedly connected with the spray header (4) respectively.

4. The exhaust gas purification device of the marine engine according to claim 1, wherein the denitration mechanism comprises a U-shaped pipe (6) arranged inside the second chamber (5), the inside of the second chamber (5) is provided with ammonia as a reducing agent for neutralization reaction with nitrogen oxides in the engine exhaust gas, the top of the U-shaped pipe (6) extends to the upper end of the second chamber (5), and the tail end of the U-shaped pipe (6) extends to the inner bottom of the second chamber (5).

5. The exhaust gas purification device of the marine engine according to claim 1, wherein the top wall of the housing (1) is provided with an exhaust port (12), the inner wall of the second chamber (5) is provided with an exhaust port (13), the inner wall of the housing (1) is provided with an air inlet (10), and the air inlet (10) and the air outlet (13) are connected inside the housing (1) through a conduit.

6. A marine engine exhaust gas purification device according to claim 1, wherein the side wall of the second chamber (5) is provided with a second outlet pipe (17) for outlet liquid.