CN220701303U

CN220701303U - Flow dispersing device

Info

Publication number: CN220701303U
Application number: CN202321676908.5U
Authority: CN
Inventors: 庞薛平; 闵惠文
Original assignee: Wuhan Lihang Intelligent Ship Technology Co ltd
Current assignee: Wuhan Lihang Intelligent Ship Technology Co ltd
Priority date: 2023-06-29
Filing date: 2023-06-29
Publication date: 2024-04-02
Anticipated expiration: 2033-06-29

Abstract

The utility model discloses a flow dispersing device which comprises a side valve, a ship body outer plate and a side discharge outer pipe, wherein the flow dispersing device is arranged at the end part of the side discharge outer pipe, and four stainless steel folded plates, a T-shaped backing plate, polytetrafluoroethylene gaskets, stainless steel backing plates, steel plates, bolts, nuts, flat gaskets and the like are arranged in the flow dispersing device. The installation position, the angle and the like of the flow dispersing device have precision requirements. In the utility model, the international marine organization passes the international convention for preventing and controlling ship pollution, and the requirements on ship emission are more and more strict. Such as ballast water treatment discharge, desulfurization and denitrification discharge, etc. How to mix the effluent with seawater better to meet the PH value requirement of the effluent specification. Meanwhile, the seawater can not corrode the dispersing device, and a good dispersing effect is achieved for a long time. The emission is uniformly dispersed to flow in four different directions by the flow dispersing device and is uniformly mixed with the seawater, and the effect is good through practical verification.

Description

Flow dispersing device

Technical Field

The utility model relates to the technical field of ships, in particular to a flow dispersing device.

Background

The International Maritime Organization (IMO) offshore environmental protection committee (MPEC) has more stringent emissions requirements for nitrogen oxides and sulfur oxides, and the emissions-limiting area has increased. More and more ships are provided with desulfurization and denitration equipment, and the equipment is used for treating nitrogen oxides, sulfur oxides and the like in exhaust gas and discharging the exhaust gas into the sea. Each class agency also has a new regulation for the discharge position area, such as the requirement that the distance between the discharge port and the light load waterline is not less than 3m and the PH value of the seawater detected by the discharge port 4m is not less than 6.5. Therefore, how to design the discharge port and how to make the neutralization effect of the discharged matter and the seawater best deserve consideration, the traditional outboard pipe is directly discharged into the ocean, the welding angle with the outer plate is not required to be paid attention to, a flow dispersing device or a backflow device is not required, and the discharge effect is not ideal.

Disclosure of Invention

The utility model aims at: in order to solve the above problems, a diffusing device is proposed.

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

a flow dispersing device for marine vessel emission comprises a side valve, a hull plate and a side-discharging outer tube, wherein the flow dispersing device is arranged in the end part of the side-discharging outer tube, and the inside of the flow dispersing device is formed by assembling four stainless steel folded plates, steel plates, stainless steel backing plates, bolts, nuts, thickened flat washers, polytetrafluoroethylene gaskets and T-shaped backing plates.

Preferably, the port outer tube is installed vertically to the hull outer plate, and the discharge port is in contact with seawater by 180 degrees.

Preferably, the flow dispersing device is spliced by four stainless steel folded plates, and the flow dispersing device is arranged at an outboard position of the end of the outboard tube.

Preferably, the flow dispersing device is connected with the outboard exhaust pipe by bolts and nuts, and the middle is divided by polytetrafluoroethylene gaskets, thickened flat gaskets and T-shaped gaskets.

In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:

1. in the present application, it is required that the outboard tube is installed perpendicularly to the hull outer plate at a distance of not less than 3m from the light weight waterline. On one hand, the vertical installation and the outer plate are convenient for field construction and welding, on the other hand, the outlet position of the outboard tube is in contact with the seawater by 180 degrees, so that the exhaust and the seawater are fully mixed, and the quantity of the mixed seawater is far more than an angle smaller than 180 degrees. If the ship body outer plate is installed at an included angle, the outlet of the outboard pipe and the outer plate are affected by the ship body molded line and the like from one side position, and the mixing with seawater is affected.

2. In this application, the dispersing device flows the emission evenly dispersed to four different directions, and multi-direction and sea water mix, guarantees that discharge port 4m detects the requirement that sea water PH value is not less than 6.5.

3. In this application, because marine outboard pipe is the carbon steel material, soaks in the sea water for a long time, can corrode, can all receive corroding with its relevant planking, consequently outboard pipe need do special coating treatment, and the diffusion device is because soaking in the sea water, uses stainless steel material, with outboard pipe carbon steel pipe rational connection.

Drawings

FIG. 1 shows a schematic view of a diffuser device according to an embodiment of the present utility model installed in a ship in detail;

FIG. 2 illustrates a top view of a diffuser at an outboard tube end provided in accordance with an embodiment of the present utility model;

fig. 3 shows a side view of a diffuser device provided according to an embodiment of the present utility model at an outboard tube end.

Fig. 4 shows a process diagram for installing a diffuser at an outboard pipe end according to an embodiment of the present utility model.

Fig. 5 shows a detailed view of splicing a diffusing device of a diffusing device according to an embodiment of the present utility model.

Fig. 6 shows a three-dimensional view of a diffuser according to an embodiment of the present utility model.

Legend description:

1. a hull outer plate; 2. a port outer tube; 3. stainless steel folded plate; 4. a steel plate block; 5. a stainless steel backing plate; 6. a bolt; 7. a nut; 8. thickening the flat gasket; 9. a polytetrafluoroethylene gasket; 10. a T-shaped backing plate; 11. a side valve;

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the present utility model provides a technical solution:

the utility model provides a dispersion device, includes side valve 11, hull planking 1 and row outboard pipe 2, be provided with the dispersion device in the tip of row outboard pipe 2, the inside of dispersion device comprises four stainless steel folded plates 3, steel sheet piece 4, stainless steel backing plate 5, bolt 6, nut 7, thickening plain washer 8, polytetrafluoroethylene gasket 9, T backing plate 10.

Specifically, as shown in fig. 1, the outboard discharge pipe 2 is vertically installed with the hull outer plate 1 at a distance of not less than 3m from the light ballast water line, and the vertical and outer plates are installed so as to facilitate on-site construction welding on the one hand, and on the other hand, the outlet position of the outboard discharge pipe is in contact with seawater at 180 degrees.

Specifically, as shown in fig. 2 and 3, a diffusing device is formed by four stainless steel folded plates 3 according to the end position of the outboard tube 2. The installation of the outboard tube 2 and the outboard tube 2 is shown in fig. 4, the outboard tube 2 is made of carbon steel, special coating treatment is needed, the flow dispersing device is made of stainless steel, and the installation typical diagram is shown in fig. 4.

Specifically, as shown in fig. 5, the stainless steel folded plate 3 is formed by four pieces of bent plates with one ends inclined by 45 degrees and one ends spliced in a reverse arc mode according to the outer diameter of the inner wall of the pipe. The four stainless steel folded plates 3 are folded into 120 degrees and welded into a whole.

In summary, the present embodiment provides a diffuser device for marine vessel discharge. Firstly, the outer tube of the side discharge is required to be vertically installed with the hull plate at a position which is not less than 3m away from the light ballast water line, firstly, the site construction is convenient, and secondly, the outlet position of the outer tube of the side discharge is contacted with seawater to be in a range of 180 degrees, so that the full mixing of the discharged matters and the seawater is facilitated. And secondly, as the outboard tube is made of carbon steel, the outboard tube can be corroded after being immersed in seawater for a long time, and the related outer plate can be corroded, so that the outboard tube is required to be specially coated, and the dispersing device is connected with the outboard tube by using stainless steel materials and using steel plates, stainless steel backing plates, bolts and nuts, thickened flat washers, polytetrafluoroethylene gaskets, T-shaped backing plates and the like due to being immersed in the seawater. Finally, the emission is uniformly dispersed and flows in four different directions by the dispersing device, and is mixed with the seawater in multiple directions to sufficiently dilute the emission, so that the requirement that the PH value of the seawater detected by the discharge port 4m is not less than 6.5 is ensured.

The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a diffusion device, includes broadside valve (11), hull planking (1) and arranges outboard pipe (2), its characterized in that, be provided with the diffusion device in the tip of arranging outboard pipe (2), the inside of diffusion device comprises four stainless steel folded plates (3), steel plate (4), stainless steel backing plate (5), bolt (6), nut (7), thickening plain washer (8), polytetrafluoroethylene gasket (9), T type backing plate (10), arrange outboard pipe (2) perpendicular and hull planking (1) installation, the diffusion device is installed in the end outboard position of arranging outboard pipe (2), stainless steel folded plate (3) are by four one end decubitus 45, and one end is according to pipe inner wall external diameter reverse arc, and four stainless steel folded plates (3) fifty percent discount become 120, weld into a whole.

2. A diffuser according to claim 1, characterized in that the outboard tube (2) is mounted perpendicular to the hull outer plate (1) at a distance of 3m from the light ballast water line, and that the outboard tube (2) outlet is brought into contact with seawater in a range of 180 ° for facilitating the thorough mixing of the effluent with seawater.

3. A diffuser according to claim 2, characterized in that the diffuser evenly disperses the effluent to flow in four different directions, and the effluent is mixed with seawater in multiple directions to ensure the maximum contact with seawater, wherein the diffuser is formed by four stainless steel folded plates (3) with one end inclined by 45 ° and one end spliced according to the outer diameter of the inner wall of the pipe, and the four stainless steel folded plates (3) are folded into 120 ° and welded into a whole.

4. A diffuser according to claim 3, characterized in that the diffuser is installed in the end of the outboard tube (2), the outboard tube (2) is made of carbon steel, and is corroded by long-term immersion in seawater, and the hull outer plate (1) related to the outboard tube is corroded, so that the outboard tube is required to be specially coated, and the diffuser is made of stainless steel, and is connected with the outboard tube (2) by steel plate blocks (4), stainless steel backing plates (5), bolts (6), nuts (7), thickened plain washers (8), polytetrafluoroethylene gaskets (9) and T-shaped backing plates (10) by immersing in seawater.