Marine desulfurization device

Abstract

A marine desulfurization device is characterized in that a desulfurization tower room is arranged above a deck and adjacent to a chimney, a desulfurization tower is positioned in the desulfurization tower room, and the desulfurization tower room is divided into a tower room upper section and a tower room lower section. The tower room lower section is provided with a box-type main body with an opening in the top, the tower room lower section is fixed on the deck through tower room supporting legs, the desulfurizing tower is fixed in the tower room through a support, and a square pipeline connecting hole is formed in the side wall of the tower room lower section. The upper part of the tower room is divided into a box-type main body with a bottom opening; a smoke outlet in the top of the desulfurization tower corresponds to the exhaust hole. The side part of the desulfurizing tower is communicated with a flue gas inlet pipe, the flue gas inlet pipe is positioned on one side close to the chimney, the flue gas inlet pipe is communicated with the chimney through a flue gas exhaust pipe branch pipe, and the tower room upper part section and the tower room lower part section are welded and fixed into a whole after being butted. On the basis of not changing the original ship structure, the flue gas treatment equipment is effectively added, so that the emission of the flue gas meets the requirements of the MARPOL convention.

Description

Technical Field

[0001] The present invention belongs to the field of ship design and construction, and in particular relates to a ship desulfurization device. Background Art

[0002] The MARPOL Convention stipulates that when a ship is sailing in an emission control area, the sulfur content of any fuel used on board shall be: 4.50% m / m before January 1, 2012, 3.50% m / m on and after January 1, 2012, 0.10% m / m on and after January 1, 2015, and 0.50% m / m on and after January 1, 2020.

[0003] Existing container ships do not have sulfur emission treatment devices. With the increasingly stringent control of sulfur emissions by the International Maritime Organization, this has forced previously built ships to use a desulfurization device to reduce sulfur emissions. Summary of the Invention

[0004] To solve the above problems, the present invention provides a marine desulfurization device, which aims to enable container ships without sulfur emission treatment equipment to comply with the MARPOL Convention. The technical solution adopted is:

[0005] A marine desulfurization device is provided with a desulfurization tower house above the deck and adjacent to the chimney. The desulfurization tower is located inside the desulfurization tower house, and the desulfurization tower house is divided into an upper tower house section and a lower tower house section.

[0006] The lower section of the tower house has a box-type main body with an open top. The lower section of the tower house is fixed to the deck through tower house legs. Four supports are fixed inside the lower section of the tower house. The supports are fixed to the bottom plate of the lower section of the tower house. The desulfurization tower is fixed inside the tower house through the supports. The supports are connected to the ear-type supports at the bottom of the desulfurization tower by bolts. Square pipe connection holes are opened on the side walls of the lower section of the tower house.

[0007] The upper section of the tower room has a box-type main body with an open bottom. The top plate of the upper section of the tower room is provided with a circular exhaust hole and a square manhole. The smoke exhaust port at the top of the desulfurization tower corresponds to the exhaust hole. A ladder is connected under the manhole. Shutters are provided on the side walls of the upper section of the tower room.

[0008] The side of the desulfurization tower is connected to a flue gas inlet pipe, which is located close to the chimney. The flue gas inlet pipe is connected to the chimney through a smoke exhaust pipe branch. The upper section of the tower house is connected to the lower section of the tower house and welded together.

[0009] In the above-mentioned marine desulfurization device, further, the tower room legs are of a truss structure.

[0010] The above-mentioned marine desulfurization device further has a plurality of cross beams arranged at equal intervals inside the side wall of the tower room, and the cross beams are arranged around the circumference of the tower room.

[0011] The above-mentioned marine desulfurization device further has one end of the exhaust pipe branch connected to the flue gas inlet pipe, and the other end passes through the pipeline connecting hole and is connected to the chimney.

[0012] The above-mentioned marine desulfurization device further has two layers of fillers arranged transversely inside the desulfurization tower. The fillers are in the shape of a honeycomb network, and there are gaps between the two layers of fillers and between the fillers and the bottom and top of the desulfurization tower.

[0013] In the above-mentioned marine desulfurization device, further, the flue gas inlet pipe is located at the bottom of the desulfurization tower, and the filler is located above the root of the flue gas inlet pipe.

[0014] The above-mentioned marine desulfurization device further has a reinforcing bracket fixed between the support and the side wall of the lower section of the tower room.

[0015] The above-mentioned marine desulfurization device further has a pull rod fixed between the flue gas inlet pipe and the desulfurization tower wall.

[0016] The above-mentioned marine desulfurization device further has two shutters arranged side by side on the side wall of the upper section of the tower room.

[0017] The above-mentioned marine desulfurization device further has two pull rods located on the upper part of the flue gas inlet pipe. The two pull rods are symmetrically arranged, with one end fixed to the wall of the flue gas inlet pipe and the other end fixed to the wall of the desulfurization tower.

[0018] Without changing the original ship structure, the present invention effectively adds flue gas treatment equipment to make its emissions comply with the requirements of the MARPOL Convention. The flue gas and alkaline seawater are fully mixed in the desulfurization tower to neutralize acidic substances such as sulfur dioxide in the flue gas. The flue gas that passes the test is then discharged, thereby effectively protecting the earth's atmospheric environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the lower section structure of the tower;

[0020] Figure 2 This is a schematic diagram of the upper section structure of the tower;

[0021] Figure 3 It is a schematic diagram of the desulfurization tower structure;

[0022] Among them, 1-support, 2-crossbeam, 3-tower room support leg, 4-ear support, 5-pipe connection hole, 6-exhaust hole, 7-manhole, 8-louver, 9-smoke inlet pipe, 11-filler, 12-pull rod. DETAILED DESCRIPTION

[0023] The present invention will be further described with reference to the accompanying drawings.

[0024] A marine desulfurization device is provided with a desulfurization tower house above the deck of a container ship and adjacent to a chimney. The desulfurization tower is located inside the desulfurization tower house, and the desulfurization tower house is divided into an upper tower house section and a lower tower house section.

[0025] like Figure 1 As shown, the lower tower section has a box-like body with an open top. It is secured to the deck via tower legs, which are truss-like structures. Four supports are fixed within the lower tower section, with reinforcing brackets secured between the supports and the side walls. The supports are fixed to the floor of the lower tower section. The desulfurization tower is secured to the interior of the tower section via the supports, which are bolted to the ear supports at the bottom of the desulfurization tower. Square pipe connection holes are provided on the side walls of the lower tower section.

[0026] like Figure 2 As shown, the upper section of the tower room has a box-type main body with an open bottom. The top plate of the upper section of the tower room is provided with a circular exhaust hole and a square manhole. The smoke exhaust port at the top of the desulfurization tower corresponds to the exhaust hole. A ladder is connected under the manhole. Two shutters are arranged side by side on the side wall of the upper section of the tower room.

[0027] like Figure 3 As shown, the side of the desulfurization tower is connected to a flue gas inlet pipe, located near the chimney. The flue gas inlet pipe is connected to the chimney through a flue gas branch pipe. One end of the flue gas branch pipe is connected to the flue gas inlet pipe, and the other end passes through the pipe connection hole and is connected to the chimney. The upper and lower sections of the tower house are connected and welded together. Multiple crossbeams are evenly spaced inside the side walls of the tower house, and the crossbeams are arranged around the tower house. Two tie rods are symmetrically arranged above the flue gas inlet pipe, one end of which is fixed to the wall of the flue gas inlet pipe and the other end is fixed to the wall of the desulfurization tower.

[0028] The tower house is set at a height of 7 meters from the deck. The height of the lower section of the tower house is 15.2 meters, and the height of the upper section of the tower house is 9.9 meters. The lower section of the tower house is installed first. After the lower section of the tower house is installed, the desulfurization tower is hoisted to the interior of the lower section of the tower house and fixed. The overall height of the desulfurization tower is 13 meters and the overall width is 8 meters. After the desulfurization tower is fixed, the upper section of the tower house is installed, and the upper section of the tower house is connected to the lower section of the tower house and welded into one.

[0029] A smoke exhaust branch is added to the original ship's smoke exhaust pipe to lead the exhaust gas to the smoke inlet pipe of the scrubbing tower. The smoke passes through two layers of filler for filtration and adsorption, and is fully contacted and mixed with two layers of sprayed seawater from top to bottom. The sulfur oxides in the smoke are removed. The treated clean smoke continues to go upward and is discharged into the atmosphere from the exhaust hole at the top of the desulfurization tower. The washed residue flows into the waste residue tank through the open connection pipe at the bottom.

[0030] The seawater used for treatment is sucked in from a newly added seabed door at the bottom of the engine room. A circulating pump transports the seawater through the GRE pipe to the desulfurization tower for spraying. The seawater is used to wash and neutralize the sulfides in the flue gas to achieve the purpose of desulfurization. After the flue gas passes the gas detection system, it is discharged into the atmosphere, thereby achieving the purpose of desulfurization and reducing pollution.

Claims

1. A marine desulfurization device, characterized in that: A desulfurization tower room is set above the deck and adjacent to the chimney. The desulfurization tower is located inside the desulfurization tower room, which is divided into an upper section and a lower section. The lower section of the tower house has a box-shaped main body with an open top. The lower section of the tower house is fixed to the deck through tower house legs. Four supports are fixed inside the lower section of the tower house. The supports are fixed to the bottom plate of the lower section of the tower house. The desulfurization tower is fixed inside the tower house through the supports. The supports are connected to the ear-type supports at the bottom of the desulfurization tower by bolts. Square pipe connection holes are opened on the side walls of the lower section of the tower house. The upper section of the tower room is a box-type main body with an open bottom. The top plate of the upper section of the tower room is provided with a circular exhaust hole and a square manhole. The exhaust port at the top of the desulfurization tower corresponds to the exhaust hole. A ladder is connected under the manhole. The side wall of the upper section of the tower room is provided with shutters. The side of the desulfurization tower is connected to a flue gas inlet pipe, which is located close to the chimney. The flue gas inlet pipe is connected to the chimney through a smoke exhaust pipe branch. The upper section of the tower house is connected to the lower section of the tower house and welded together.

2. A marine desulfurization device according to claim 1, characterized in that: The tower legs are of truss structure.

3. A marine desulfurization device according to claim 1, characterized in that: A plurality of cross beams are arranged at equal intervals inside the side walls of the tower room, and the cross beams are arranged around the circumference of the tower room.

4. A marine desulfurization device according to claim 1, characterized in that: One end of the smoke exhaust pipe branch is connected to the smoke inlet pipe, and the other end passes through the pipe connection hole and is connected to the chimney.

5. A marine desulfurization device according to claim 1, characterized in that: Two layers of fillers are arranged horizontally inside the desulfurization tower. The fillers are in the shape of a honeycomb mesh. There is a distance between the two layers of fillers and between the fillers and the bottom and top of the desulfurization tower.

6. A marine desulfurization device according to claim 5, characterized in that: The flue gas inlet pipe is located at the bottom of the desulfurization tower, and the filler is located above the root of the flue gas inlet pipe.

7. A marine desulfurization device according to claim 1, characterized in that: Reinforced brackets are fixed between the supports and the side walls of the lower sections of the tower room.

8. A marine desulfurization device according to claim 1, characterized in that: A tie rod is fixed between the flue gas inlet pipe and the desulfurization tower wall.

9. A marine desulfurization device according to claim 1, characterized in that: Two shutters are arranged side by side on the side wall of the upper section of the tower room.

10. A marine desulfurization device according to claim 8, characterized in that: There are two tie rods located on the upper part of the flue gas inlet pipe. The two tie rods are symmetrically arranged, with one end fixed on the wall of the flue gas inlet pipe and the other end fixed on the wall of the desulfurization tower.

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