CN214106426U

CN214106426U - Waste gas treatment device for marine diesel engine set

Info

Publication number: CN214106426U
Application number: CN202022488125.7U
Authority: CN
Inventors: 胡伟; 刘航; 刘宁磊; 朱正敏; 查正玲
Original assignee: Anqing CSSC Diesel Engine Co Ltd
Current assignee: Anqing CSSC Diesel Engine Co Ltd
Priority date: 2020-11-02
Filing date: 2020-11-02
Publication date: 2021-09-03
Anticipated expiration: 2030-11-02

Abstract

The utility model belongs to the technical field of ship waste gas treatment, and particularly discloses a waste gas treatment device for a marine diesel engine unit, which comprises a spraying component, a connecting pipeline and an adsorption component; the spraying assembly comprises a spraying shell, a urea tank and a baffle; the left side and the right side of the top of the spraying shell are respectively communicated with an air inlet pipeline and a connecting pipeline, a liquid spraying pipe is vertically and fixedly installed in the center of the inner part of the spraying shell, a urea tank is installed in the center of the top surface of the spraying shell, and the top end of the liquid spraying pipe is communicated with the inner part of the urea tank; the left side and the right side of the surface of the liquid spraying pipe are provided with a plurality of spray holes, and the front side and the rear side of the surface of the liquid spraying pipe are fixedly clamped with clapboards; the width of the partition board is equal to the distance from the liquid spraying pipe to the inner wall of the spraying shell, first baffle plates are fixed on two sides of the surface of the partition board at equal intervals, and arc-shaped openings matched with the liquid spraying pipe are formed in the middle of the first baffle plates; second baffles are fixedly arranged on two sides of the inner wall of the spraying shell at equal intervals, and the second baffles and the first baffles are arranged in a staggered mode; the other end of the connecting pipeline is communicated with the adsorption component.

Description

Waste gas treatment device for marine diesel engine set

Technical Field

The utility model relates to a relevant technical field of boats and ships exhaust-gas treatment specifically is a waste gas treatment device for marine diesel unit.

Background

According to data statistics, annual emission of ship exhaust gas accounts for about 4% of the total world emission, and annual emission of NOx accounts for about 7% of the total world emission. In ports, straits and some seaareas with dense routes and large ship traffic, it has become a main pollution source in the area. The International Maritime Organization (IMO) related data show that the emission of ship exhaust gas pollutes the environment more and more seriously, the main mode of treating the ship exhaust gas in the prior art is to reduce NOx in the exhaust gas into nitrogen for emission through urea pyrolysis and hydrolysis, but the exhaust gas has high heat and high speed when being discharged, so that the purification treatment effect is poor, and the exhaust gas also contains a large amount of particulate matters which can cause damage to the health of a crew member if being sucked into the body of the crew member.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a waste gas treatment device for marine diesel unit to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an exhaust gas treatment device for a marine diesel engine set comprises a spraying component, a connecting pipeline and an adsorption component; the spraying assembly comprises a spraying shell, a urea tank and a baffle; the left side and the right side of the top of the spraying shell are respectively communicated with an air inlet pipeline and a connecting pipeline, a liquid spraying pipe is vertically and fixedly installed in the center of the inner part of the spraying shell, a urea tank is installed in the center of the top surface of the spraying shell, and the top end of the liquid spraying pipe is communicated with the inner part of the urea tank; the left side and the right side of the surface of the liquid spraying pipe are provided with a plurality of spray holes, and the front side and the rear side of the surface of the liquid spraying pipe are fixedly clamped with clapboards; the width of the partition board is equal to the distance from the liquid spraying pipe to the inner wall of the spraying shell, first baffle plates are fixed on two sides of the surface of the partition board at equal intervals, and arc-shaped openings matched with the liquid spraying pipe are formed in the middle of the first baffle plates; second baffles are fixedly arranged on two sides of the inner wall of the spraying shell at equal intervals, and the second baffles and the first baffles are arranged in a staggered mode; the other end of the connecting pipeline is communicated with the adsorption component.

Preferably, the adsorption component comprises an adsorption shell and an adsorption layer; the left side of the adsorption shell is communicated with the connecting pipeline, and the right side of the adsorption shell is communicated with the exhaust pipeline; the adsorption layer is arranged inside the adsorption shell, and a plurality of activated carbon particles are filled inside the adsorption layer.

Preferably, the two sides of the adsorption layer are provided with the screens, the screens are in sliding connection with the inner wall of the adsorption shell, the two sides of the inner wall of the adsorption shell are fixedly provided with the vertical plates, and the vertical plates are mutually connected with the screens through clamping springs; a through hole is formed in the center of the surface of the vertical plate.

Preferably, the bottom surfaces of the screen plates extend downwards to form sliding blocks, sliding grooves are correspondingly formed in the inner wall of the adsorption shell, and the two screen plates are in sliding connection with the inner wall of the adsorption shell through the matching of the sliding blocks and the sliding grooves.

Preferably, the first baffles and the second baffles on the left side inside the spraying shell are arranged in a downward inclined mode, and the first baffles and the second baffles on the right side inside the spraying shell are arranged in an upward inclined mode.

Preferably, the side surfaces of the first baffle and the second baffle extend outwards to be fixed with clamping blocks, the side surface of the baffle and the corresponding position of the inner wall of the spraying shell are provided with clamping grooves, and the first baffle and the second baffle are respectively clamped and fixed with the side surface of the baffle and the inner wall of the spraying shell through the matching of the clamping blocks and the clamping grooves.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up spray set and carry out purification treatment to getting into the inside waste gas that sprays the casing to get rid of the nitrogen oxide in the waste gas, and through the cooperation of first baffle, second baffle, spray tube and baffle, extension waste gas improves purifying effect spraying the inside dwell time of casing.

The utility model discloses still be provided with the adsorption component and adsorb the filtration to waste gas to get rid of the particulate matter in the waste gas, and through the cooperation of otter board, riser, clamping spring, slider and spout, make two otter boards extrude the adsorbed layer, avoided rocking the condition that causes the too big adsorption effect that leads to in clearance between the active carbon granule to descend because of boats and ships.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

fig. 2 is an enlarged schematic view of a point a in fig. 1.

In the figure: 1. a spray assembly; 101. spraying the shell; 102. a liquid spraying pipe; 103. a urea tank; 104. a partition plate; 105. a first baffle plate; 106. a second baffle; 107. a clamping block; 108. a card slot; 2. connecting a pipeline; 3. an adsorption component; 301. an adsorption housing; 302. an adsorption layer; 303. a screen plate; 304. a vertical plate; 305. a through hole; 306. a clamping spring; 307. a slider; 308. a chute; 4. an air intake duct; 5. an exhaust duct.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", 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 simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: an exhaust gas treatment device for a marine diesel engine set comprises a spraying component 1, a connecting pipeline 2 and an adsorption component 3; the spraying assembly 1 comprises a spraying shell 101, a urea tank 103 and a baffle plate; the left side and the right side of the top of the spraying shell 101 are respectively communicated with an air inlet pipeline 4 and a connecting pipeline 2, a liquid spraying pipe 102 is vertically and fixedly installed in the center of the interior of the spraying shell 101, a urea tank 103 is installed in the center of the top surface of the spraying shell 101, and the top end of the liquid spraying pipe 102 is communicated with the interior of the urea tank 103; a plurality of spray holes are formed in the left side and the right side of the surface of the liquid spray pipe 102, and partition plates 104 are clamped and fixed on the front side and the rear side of the surface of the liquid spray pipe 102; the width of the partition plate 104 is equal to the distance from the liquid spraying pipe 102 to the inner wall of the spraying shell 101, first baffle plates 105 are fixed on two sides of the surface of the partition plate 104 at equal intervals, and an arc-shaped opening matched with the liquid spraying pipe 102 is formed in the middle of each first baffle plate 105; second baffles 106 are fixedly arranged on two sides of the inner wall of the spraying shell 101 at equal intervals, and the second baffles 106 and the first baffles 105 are arranged in a staggered manner; the other end of the connecting pipeline 2 is communicated with the adsorption component 3.

Further, the adsorption component 3 comprises an adsorption shell 301 and activated carbon particles; the left side of the adsorption shell 301 is communicated with the connecting pipeline 2, and the right side of the adsorption shell 301 is communicated with the exhaust pipeline 5; the adsorption layer 302 is arranged inside the adsorption shell 301, and the adsorption layer 302 is filled with a plurality of activated carbon particles.

Furthermore, two sides of the adsorption layer 302 are provided with a screen plate 303, the screen plate 303 is in sliding connection with the inner wall of the adsorption shell 301, two sides of the inner wall of the adsorption shell 301 are fixedly provided with a vertical plate 304, and the vertical plate 304 and the screen plate 303 are connected with each other through a clamping spring 306; the riser 304 has a through hole 305 formed in the center of its surface.

Further, the bottom surfaces of the mesh plates 303 extend downwards to form sliding blocks 307, sliding grooves 308 are correspondingly formed in the inner wall of the adsorption shell 301, and the two mesh plates 303 are in sliding connection with the inner wall of the adsorption shell 301 through the matching of the sliding blocks 307 and the sliding grooves 308.

Further, the first baffles 105 and the second baffles 106 on the left side inside the spray casing 101 are arranged in a downward inclined manner, and the first baffles 105 and the second baffles 106 on the right side inside the spray casing 101 are arranged in an upward inclined manner.

Furthermore, the side surfaces of the first baffle 105 and the second baffle 106 extend outwards to be fixed with a clamping block 107, the side surface of the partition 104 and the inner wall of the spray casing 101 are provided with clamping grooves 108, and the first baffle 105 and the second baffle 106 are respectively clamped and fixed with the side surface of the partition 104 and the inner wall of the spray casing 101 through the matching of the clamping block 107 and the clamping grooves 108.

The working principle is as follows: when the device is used, waste gas generated by a diesel engine set enters the spraying shell 101 through the air inlet pipeline 4, the spraying pipe 102 is arranged at the center inside the spraying shell 101, the top end of the spraying pipe 102 is communicated with the inside of the urea tank 103, the surface of the spraying pipe 102 is provided with spray holes, urea inside the urea tank 103 is sprayed out through the spray holes formed in the surface of the spraying pipe 102, the urea is hydrolyzed and pyrolyzed at high temperature to generate ammonia gas, the ammonia gas and nitrogen oxides in the waste gas are subjected to reduction reaction to convert nitrogen elements in the nitrogen oxides into nitrogen gas, the purification effect is achieved, redundant ammonia gas can be reduced into nitrogen gas, therefore, redundant harmful gas is not generated, the purification treatment of the nitrogen oxides in the waste gas is achieved, the partition plates 104 are arranged on the front side and the rear side of the spraying pipe 102 to separate the top end inside the spraying shell 101, and the first baffle plates 105 and the second baffle plates 106 are obliquely arranged to guide the waste gas, waste gas enters the spraying shell 101 through the gas inlet pipeline 4 and then descends to the bottom end and ascends to the connecting pipeline 2 from the other side, so that the retention time of the waste gas in the spraying shell 101 is prolonged, and the purification effect of urea is improved;

waste gas is purified and then enters the interior of the adsorption shell 301 through the connecting pipeline 2, the inner wall of the adsorption shell 301 is symmetrically and vertically fixed with a vertical plate 304, the surface of the vertical plate 304 is provided with a through hole 305, two screen plates 303 are arranged between the two vertical plates 304, an adsorption layer 302 is arranged between the two screen plates 303, the waste gas enters the adsorption shell 301 through the through hole 305 arranged on the surface of the vertical plate 304 and the screen plates 303, and the waste gas is adsorbed by activated carbon particles filled in the adsorption layer 302, so that particulate matters in the waste gas are filtered, the two screen plates 303 are not only in sliding connection with the inner wall of the adsorption shell 301 and are mutually connected with the two vertical plates 304 through clamping springs 306, and the two screen plates 303 can extrude the adsorption layer 302 through the actions of the clamping springs 306, the sliding blocks 307 and the sliding grooves 308, so that a plurality of activated carbon particles filled in the adsorption layer 302 are ensured to be tightly connected, thereby improving the adsorption effect.

It is worth noting that: the whole device is controlled by the master control button, and the equipment matched with the control button is common equipment, so that the device belongs to the prior art, and the electrical connection relation and the specific circuit structure of the device are not repeated.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An exhaust gas treatment device for a marine diesel engine unit, characterized in that: comprises a spraying component (1), a connecting pipeline (2) and an adsorption component (3); the spraying assembly (1) comprises a spraying shell (101), a urea tank (103) and a baffle plate; the left side and the right side of the top of the spraying shell (101) are respectively communicated with an air inlet pipeline (4) and a connecting pipeline (2), a liquid spraying pipe (102) is vertically and fixedly installed in the center of the interior of the spraying shell (101), a urea tank (103) is installed in the center of the top surface of the spraying shell (101), and the top end of the liquid spraying pipe (102) is communicated with the interior of the urea tank (103); a plurality of spray holes are formed in the left side and the right side of the surface of the liquid spray pipe (102), and partition plates (104) are clamped and fixed on the front side and the rear side of the surface of the liquid spray pipe (102); the width of the partition plate (104) is equal to the distance from the liquid spraying pipe (102) to the inner wall of the spraying shell (101), first baffle plates (105) are fixed on two sides of the surface of the partition plate (104) at equal intervals, and arc-shaped openings matched with the liquid spraying pipe (102) are formed in the middle of the first baffle plates (105); second baffles (106) are fixedly arranged on two sides of the inner wall of the spraying shell (101) at equal intervals, and the second baffles (106) and the first baffles (105) are arranged in a staggered mode; the other end of the connecting pipeline (2) is communicated with the adsorption component (3).

2. An exhaust gas treatment device for a marine diesel engine set according to claim 1, characterized in that: the adsorption component (3) comprises an adsorption shell (301) and an adsorption layer (302); the left side of the adsorption shell (301) is communicated with the connecting pipeline (2), and the right side of the adsorption shell (301) is communicated with the exhaust pipeline (5); the adsorption layer (302) is arranged inside the adsorption shell (301), and a plurality of activated carbon particles are filled inside the adsorption layer (302).

3. An exhaust gas treatment device for a marine diesel engine set according to claim 2, characterized in that: the adsorption device is characterized in that screen plates (303) are arranged on two sides of the adsorption layer (302), the screen plates (303) are in sliding connection with the inner wall of the adsorption shell (301), vertical plates (304) are fixedly arranged on two sides of the inner wall of the adsorption shell (301), and the vertical plates (304) are connected with the screen plates (303) through clamping springs (306); the surface center of the vertical plate (304) is provided with a through hole (305).

4. An exhaust gas treatment device for a marine diesel engine set according to claim 3, characterized in that: the bottom surfaces of the screen plates (303) extend downwards to form sliding blocks (307), sliding grooves (308) are correspondingly formed in the inner wall of the adsorption shell (301), and the two screen plates (303) are in sliding connection with the inner wall of the adsorption shell (301) through the matching of the sliding blocks (307) and the sliding grooves (308).

5. An exhaust gas treatment device for a marine diesel engine set according to claim 1, characterized in that: the spraying shell (101) is characterized in that the first baffles (105) and the second baffles (106) on the left side inside the spraying shell (101) are arranged in a downward inclined mode, and the first baffles (105) and the second baffles (106) on the right side inside the spraying shell (101) are arranged in an upward inclined mode.

6. An exhaust gas treatment device for a marine diesel engine set according to claim 1, characterized in that: first baffle (105) and second baffle (106) side are outwards extended and are fixed with fixture block (107), and draw-in groove (108) have been seted up to baffle (104) side and spray casing (101) inner wall corresponding position department, and first baffle (105) and second baffle (106) are fixed with baffle (104) side and spray casing (101) inner wall block through the cooperation of fixture block (107) and draw-in groove (108) respectively.