Marine desulfurizing tower outboard discharging pipe

Abstract

The utility model relates to the technical field of ships, in particular to an outboard discharging pipe for a marine desulfurizing tower, and solves the technical problems that seawater with acidity PH of about 2.5 is easy to permeate into a carbon steel pipe from cracks of a PTFE (Polytetrafluoroethylene) coating to cause serious corrosion, the carbon steel pipe cannot be used, and the corroded carbon steel pipe is inconvenient to replace in the outboard discharging pipe for the marine desulfurizing tower in the prior art. According to the technical scheme, a titanium sleeve is inserted into an outboard tube, and a corrosion-resistant filling layer is smeared between the outboard tube and the titanium sleeve; when the outboard valve is used, the outboard valve is opened, acid seawater passes through the outboard valve and the titanium sleeve and is discharged out of the outboard pipe, the acid seawater does not make contact with the outboard pipe and the flange, the contact between the acid seawater and a ship body is reduced to the minimum, and the service life is prolonged to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of ships, in particular to an outboard exhaust pipe of a marine desulfurization tower. Background Art

[0002] As global environmental protection requirements become more stringent, more and more areas are being designated as sulfide emission control areas. Installing desulfurization towers on ships has become a more mainstream configuration. However, due to the strong acidity and presence of certain particulate matter in the scrubbing water of the desulfurization tower, the existing marine desulfurization tower uses an outboard pipe. The acidic seawater with a pH of about 2.5 in the desulfurization tower can easily penetrate through cracks in the PTFE coating into the carbon steel pipe, causing severe corrosion and rendering it unusable. It is also inconvenient to replace the corroded carbon steel pipe. Utility Model Content

[0003] The purpose of the utility model is to solve the technical problems in the prior art of the outboard discharge pipe for a marine desulfurization tower, in which acidic seawater with a pH of about 2.5 easily penetrates into the interior of the carbon steel pipe through cracks in the PTFE coating, causing severe corrosion and rendering it unusable, and the corroded carbon steel pipe is inconvenient to replace.

[0004] To achieve the above objectives, the present invention employs the following technical solutions: a marine scrubber exhaust outboard pipe comprising an outboard pipe connected to the hull at one end and having a flange at the other end; an outboard valve connected to the flange; and a titanium sleeve embedded within the outboard pipe. This prevents acidic seawater from contacting the outboard pipe and flange, and minimizes contact with the hull, thereby maximizing its service life.

[0005] Furthermore, the outboard tube and the titanium sleeve are provided with a filling layer, which can effectively connect the outboard tube and the titanium sleeve tightly, prevent the hull corrosion near the outboard tube, and effectively extend the service life.

[0006] Furthermore, the filling layer is a repair agent; the filling layer can be a double layer, the first layer is Wencon Hi-Temp repair agent 1050, and the second layer is Wencon Hi-Temp repair agent 1060; Wencon 1040 oil-based putty can also be used to fill the gap between the titanium casing and the edge of the hull.

[0007] Furthermore, the outboard tube is welded to the hull.

[0008] Furthermore, a diffuser is provided in the titanium sleeve to quickly disperse, mix and dilute the discharged acidic seawater, thereby reducing the corrosion of the acidic seawater on the hull.

[0009] Furthermore, fluororubber gaskets are provided between the outboard valve and the titanium sleeve, and between the titanium sleeve and the flange.

[0010] Furthermore, the filling layer extends onto the hull.

[0011] Compared with the prior art, the advantages and positive effects of the present invention are:

[0012] 1. The utility model provides an outboard pipe for discharging a marine desulfurization tower. The outboard pipe is welded to the hull, and an outboard valve is connected to the outboard pipe flange. A titanium sleeve is inserted into the outboard pipe, and a corrosion-resistant repair agent filling layer is applied between the outboard pipe and the titanium sleeve. When in use, the outboard valve is opened, and acidic seawater passes through the outboard valve and the titanium sleeve and is discharged from the outboard pipe. The acidic seawater will not contact the outboard pipe and the flange, and the contact with the hull will be minimized, thereby maximizing the service life.

[0013] 2. The utility model provides a marine desulfurization tower exhaust outboard pipe. The repair agent filling layer applied between the outboard pipe and the titanium casing has the characteristics of strong bonding effect, good anti-corrosion effect, and good compatibility with paint. It can effectively connect the outboard and the titanium casing tightly, and prevent corrosion of the hull near the outboard pipe, effectively extending the service life; in addition, the filling layer can be melted at high temperature, and can separate the outboard pipe and the titanium casing without damage, which is convenient for replacing and repairing the titanium casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the overall structure of an outboard exhaust pipe of a marine desulfurization tower provided by the utility model.

[0016] Legend:

[0017] 1. Hull; 2. Outboard pipe; 3. Outboard valve; 4. Titanium sleeve; 5. Filling layer; 6. Fluororubber gasket; 7. Diffuser; 8. Flange. DETAILED DESCRIPTION

[0018] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0019] Example 1:

[0020] See also Figure 1The present invention provides an outboard pipe for a marine desulfurization tower, comprising an outboard pipe 2, one end of which is connected to a hull 1 and the other end of which is provided with a flange 8; an outboard valve 3 is connected to the flange 8; and a titanium sleeve 4 is embedded within the outboard pipe 2. A filler layer 5 is provided between the outboard pipe 2 and the titanium sleeve 4. The filler layer 5 is a patching agent. The outboard pipe 2 is welded to the hull 1.

[0021] The outboard tube 2 is welded to the hull 1, and the outboard valve 3 is connected to the flange 8 of the outboard tube 2. A titanium sleeve 4 is inserted into the outboard tube 2, and a corrosion-resistant filler layer 5 is applied between the two. When in use, the outboard valve 3 is opened, and acidic seawater passes through the outboard valve 3, the titanium sleeve 4, and out of the outboard tube 2. The acidic seawater does not come into contact with the outboard tube 2 and the flange 8, and its contact with the hull 1 is minimized, maximizing the service life. The filler layer 5 applied between the outboard tube 2 and the titanium sleeve 4 has strong bonding and excellent corrosion resistance. It effectively connects the outboard and titanium sleeve 4 and prevents corrosion of the hull 1 near the outboard tube 2, effectively extending the service life. In addition, the filler layer 5 can be melted at high temperatures, allowing for non-destructive separation of the outboard tube 2 and the titanium sleeve 4, facilitating replacement and repair of the titanium sleeve 4.

[0022] In this embodiment, a diffuser 7 is provided in the titanium sleeve 4. The purpose of the diffuser 7 is to quickly disperse, mix and dilute the discharged acidic seawater, thereby reducing the corrosion of the hull 1 by the acidic seawater.

[0023] In this embodiment, a fluororubber gasket 6 is provided between the outboard valve 3 and the titanium sleeve 4, and between the titanium sleeve 4 and the flange 8. A fluororubber gasket 6 is provided between the outboard valve 3 and the titanium sleeve 4, and between the titanium sleeve 4 and the flange 8. The fluororubber gasket 6 itself has good acid resistance, ensuring that all components are tightly installed and leak-proof. It also prevents direct contact between the outboard valve 3, the titanium sleeve 4, and the flange 8 of the outboard pipe 2, thus preventing electrical corrosion. The outboard valve 3, the titanium sleeve 4, the filling layer 5, and the fluororubber gasket 6 described in this utility model are all made of corrosion-resistant materials, effectively preventing corrosion from acidic seawater. The outboard pipe 2, the flange 8, and the like are all made of ordinary carbon steel and require no additional treatment, effectively saving shipyard costs. This utility model provides long-term corrosion resistance.

[0024] Example 2:

[0025] Unlike the above embodiment, in this embodiment, the filling layer 5 extends onto the hull 1. In the present invention, the filling layer 5 applied between the outboard tube 2 and the titanium sleeve 4 extends onto the hull 1. Applying the filling layer 5 within a certain range centered on the outboard tube 2 can further reduce corrosion of the hull 1 near the outboard tube 2.

[0026] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A marine desulfurization tower outboard pipe, characterized in that: include: An outboard pipe (2), one end of which is connected to the hull (1) and the other end of which is provided with a flange (8); an outboard valve (3) is connected to the flange (8); and a titanium sleeve (4) is embedded in the outboard pipe (2).

2. The marine desulfurization tower outboard pipe according to claim 1, characterized in that: The outboard tube (2) and the titanium sleeve (4) are provided with a filling layer (5).

3. The marine desulfurization tower outboard pipe according to claim 2, characterized in that: The filling layer (5) is a repair agent.

4. The marine desulfurization tower outboard pipe according to claim 3, characterized in that: The outboard tube (2) and the hull (1) are welded.

5. The marine desulfurization tower outboard pipe according to claim 4, characterized in that: A diffuser (7) is provided in the titanium sleeve (4).

6. The marine desulfurization tower outboard pipe according to claim 5, characterized in that: Fluororubber gaskets (6) are provided between the outboard valve (3) and the titanium sleeve (4), and between the titanium sleeve (4) and the flange (8).

7. The outboard pipe of a marine desulfurization tower according to claim 6, characterized in that: The filling layer (5) extends onto the hull (1).

Images