A venting device for a ship for the bulk transport of hazardous liquid chemicals

Abstract

The utility model discloses a bulk transportation dangerous liquid chemical on -ship exhaust device relates to the technical field of equipment, including the outer cylinder, the inner cylinder that is equipped with with exhaust fan connection in the outer cylinder, be equipped with with the shelter of the opposite arrangement of inner cylinder in the outer cylinder. Exhaust fan work makes the gas of ship body pass through the inner cylinder and enter the outer cylinder, and the gas bypasses the shelter in the outer cylinder and discharges from the outer cylinder, thereby realizes the exhaust work, and the shelter that sets up in the outer cylinder prevents rainwater from falling into the inner cylinder, prevents rainwater from entering the cabin inside, and protects the fan, and the practicality is higher.

Description

Technical Field

[0001] This utility model relates to the field of exhaust equipment technology, and in particular to an exhaust device for a ship transporting dangerous liquid chemicals in bulk. Background Technology

[0002] According to the CCS Code for Construction and Equipment of Ships Carrying Dangerous Liquid Chemicals in Bulk, ventilation and exhaust ducts in cargo areas frequently accessed during cargo operations should exhaust upwards. Currently, one design integrates the fan and exhaust vent into a single upward-exhausting fan (also known as an olive-type fan). However, due to the high installation position, fan maintenance is inconvenient, and olive-type fans are 1.5 times more expensive than axial flow fans.

[0003] For example, announcement number CN118705044A, published on September 27, 2024, describes an installation method for a ship's exhaust pipe and the exhaust pipe itself. During the design phase, based on the installation location and weight of each large exhaust pipe, two permanent marine eyeplates are symmetrically added to the surface of the exhaust pipe. These marine eyeplates are laid out and fabrication drawings are generated as part of the pipe fittings. They are then fabricated as a whole with the exhaust pipe and flange on the pipe assembly drawing and returned to the factory. After welding, the marine eyeplates must undergo qualified flaw detection by the manufacturing plant. However, when the exhaust pipe is used vertically, rainwater can easily enter the hull through the exhaust pipe, causing erosion and resulting in poor practicality. Summary of the Invention

[0004] The purpose of this invention is to provide a more practical venting device for ships transporting hazardous liquid chemicals in bulk. This invention uses a shielding component installed on the outer cylinder to protect the inner cylinder from rainwater, thus preventing rainwater from flowing into the ship's interior while both the outer and inner cylinders are venting vertically, making it more practical.

[0005] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is: an exhaust device for a ship transporting dangerous liquid chemicals in bulk, comprising an outer cylinder, an inner cylinder connected to an exhaust fan, and a shielding member disposed opposite to the inner cylinder within the outer cylinder.

[0006] The shielding component is olive-shaped and has an extension plate on it. The cross-sectional area of ​​the extension plate is larger than that of the inner cylinder.

[0007] The outer cylinder is provided with a cone, which is connected to the inner cylinder, and the cone is provided with a drain outlet.

[0008] The inner cylinder is provided with a connecting flange for connecting to the exhaust fan.

[0009] The connecting flange is provided with an external reinforcing rib that connects to the tapered cylinder.

[0010] The cone is provided with internal reinforcing ribs that are connected to the inner cylinder.

[0011] Both the shielding component and the outer cylinder are equipped with connecting plates, and the two connecting plates are connected by a first bolt.

[0012] A fireproof net is provided at one end of the outer cylinder opposite to the inner cylinder.

[0013] The outer cylinder is provided with an installation ring, which is connected to the fireproof mesh by a second bolt.

[0014] The beneficial effects of this utility model are:

[0015] The exhaust fan allows the air in the hull to enter the outer cylinder through the inner cylinder. The air then bypasses the shielding parts inside the outer cylinder and is discharged from the outer cylinder, thus achieving the exhaust function. The shielding parts inside the outer cylinder prevent rainwater from falling into the inner cylinder and entering the cabin, and also protect the fan, making it more practical.

[0016] By setting a cone on the outer cylinder, rainwater guided by the shielding component is discharged through the drain outlet, thereby preventing rainwater from accumulating inside the outer cylinder and preventing rainwater from eroding the inner cylinder. The addition of external and internal reinforcing ribs increases the strength of the cone, inner cylinder, and connecting flange, thereby increasing the overall strength of the exhaust device and extending its service life. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the exhaust device on a ship transporting hazardous liquid chemicals in bulk, according to this utility model.

[0018] Figure 2 for Figure 1 Top view.

[0019] In the attached diagram: 1-outer cylinder, 101-conical cylinder, 2-inner cylinder, 3-shielding component, 301-extension plate, 4-connecting plate, 5-first bolt, 6-fireproof mesh, 7-mounting ring, 8-second bolt, 9-outer reinforcing rib, 10-drain outlet, 11-connecting flange, 12-outer reinforcing rib. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0022] like Figure 1-2 As shown, the exhaust system on a ship transporting hazardous liquid chemicals in bulk includes an outer cylinder 1, an inner cylinder 2 connected to an exhaust fan inside the outer cylinder 1, and a shielding component 3 disposed opposite to the inner cylinder 2 inside the outer cylinder 1. Specifically, the exhaust fan is installed on the hull near the deck to facilitate maintenance of the fan. In this embodiment, the fan is an axial flow fan with an inspection door, and the outer cylinder 1 and the inner cylinder 2 are vertically arranged.

[0023] In use, the inner cylinder 2 is installed on top of the exhaust fan duct. When the exhaust fan is working, the gas from the hull enters the outer cylinder 1 through the inner cylinder 2. The gas bypasses the shield 3 inside the outer cylinder 1 and is discharged from the outer cylinder 1, thus achieving the exhaust operation. The shield 3, which is set inside the outer cylinder 1, prevents rainwater from falling into the inner cylinder 2 and prevents rainwater from entering the cabin, and also protects the fan, making it more practical.

[0024] The shielding component 3 is olive-shaped. Specifically, the shielding component 3 has a large cross-sectional area in the middle of the vertical direction and small cross-sectional areas at both ends. The shielding component 3 is provided with an extension plate 301, which is located in the middle of the shielding component 3 and opens downward. The cross-sectional area of ​​the extension plate 301 is larger than that of the inner cylinder 2. This ensures that the shielding component 3 stably shields the inner cylinder 2. The extension plate 301 facilitates the guidance of rainwater to the outside of the inner cylinder 2. In this embodiment, the shielding component 3 is formed by welding two cones together, while the extension plate 301 is annular and welded to the shielding component 3.

[0025] The outer cylinder 1 is provided with a cone 101, which is connected to the inner cylinder 2. The cone 101 is provided with a drain outlet 10. Rainwater is guided to the space between the cone 101 and the inner cylinder 2 by the shielding member 3, and then the rainwater is discharged from the outer cylinder 1 through the drain outlet 10 on the cone 101 to prevent rainwater accumulation. In this embodiment, the cone 101 is welded to the lower end of the outer cylinder 1 and the cone 101 is welded to the inner cylinder 2.

[0026] The inner cylinder 2 is provided with a connecting flange 11 for connecting to the exhaust fan. The connection flange 11 facilitates the connection between the inner cylinder 2 and the exhaust pipe. Specifically, the connecting flange 11 has four through holes arranged symmetrically in a ring for bolts to pass through.

[0027] The connecting flange 11 is provided with an outer reinforcing rib 12 that connects to the cone 101. The connection strength between the connecting flange 11 and the cone 101 is increased by the setting of the outer reinforcing rib 12. Specifically, four outer reinforcing ribs 12 are provided and are arranged symmetrically in a ring on the connecting flange 11. The outer reinforcing ribs 12 are welded to the connecting flange 11 and the cone 101.

[0028] The cone 101 is provided with an inner reinforcing rib 9 that is connected to the inner cylinder 2. The inner reinforcing rib 9 increases the connection strength of the inner cylinder 2 in the outer cylinder 1. Specifically, there are four inner reinforcing ribs 9, which are arranged symmetrically in a ring on the outer wall of the inner cylinder 2. The inner reinforcing ribs 9 are welded to the reinforcing rib 12 and the cone 101.

[0029] Both the shielding component 3 and the outer cylinder 1 are provided with connecting plates 4. The two connecting plates 4 are connected by a first bolt 5. The cooperation between the connecting plates 4 and the first bolt 5 enables the shielding component 3 to be easily installed and removed from the outer cylinder 1. In this embodiment, four connecting plates 4 are symmetrically welded in a ring on the outer wall of the shielding component 3, and four connecting plates 4 are symmetrically welded in a ring on the inner wall of the outer cylinder 1. The connecting plates 4 are provided with through holes for the first bolt 5 to pass through, so that the first bolt 5 can be passed through the through holes on the connecting plates 4, thereby realizing the installation of the shielding component 3 in the outer cylinder 1.

[0030] A fireproof net 6 is provided on one end of the outer cylinder 1 opposite to the inner cylinder 2. The fireproof net 6 can meet the fire prevention requirements and also prevent foreign objects from entering the air duct. In this embodiment, the fireproof net is set at the top air outlet of the outer cylinder 1, and the mesh size is 13x13mm.

[0031] An installation ring 7 is provided on the outer cylinder 1. The installation ring 7 is connected to the fireproof mesh 6 by the second bolt 8. The installation ring 7 and the second bolt 8 enable the fireproof mesh 6 to be easily installed and removed from the outer cylinder 1. Specifically, the installation ring 7 is welded to the inner wall of the outer cylinder 1, and there are eight second bolts 8. The installation ring 7 and the fireproof mesh 6 are provided with eight through holes for the second bolts 8 to pass through.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A venting device for a vessel transporting hazardous liquid chemicals in bulk, characterized in that, It includes an outer cylinder (1), an inner cylinder (2) connected to an exhaust fan, and a shielding member (3) disposed opposite to the inner cylinder (2) inside the outer cylinder (1).

2. The exhaust system for ships transporting hazardous liquid chemicals in bulk according to claim 1, characterized in that, The shielding member (3) is olive-shaped, and an extension plate (301) is provided on the shielding member (3). The cross-sectional area of ​​the extension plate (301) is larger than the cross-sectional area of ​​the inner cylinder (2).

3. The exhaust system for ships transporting hazardous liquid chemicals in bulk according to claim 2, characterized in that, The outer cylinder (1) is provided with a cone (101), which is connected to the inner cylinder (2). The cone (101) is provided with a drain outlet (10).

4. The exhaust system for ships transporting hazardous liquid chemicals in bulk according to claim 2, characterized in that, The inner cylinder (2) is provided with a connecting flange (11) for connecting to the exhaust fan.

5. The venting device for ships transporting hazardous liquid chemicals in bulk according to claim 4, characterized in that, The connecting flange (11) is provided with an outer reinforcing rib (12) that is connected to the cone (101).

6. The venting device for ships transporting hazardous liquid chemicals in bulk according to claim 3, characterized in that, The cone (101) is provided with an inner reinforcing rib (9) that is connected to the inner cylinder (2).

7. The venting system for ships transporting hazardous liquid chemicals in bulk according to any one of claims 1-6, characterized in that, Both the shielding component (3) and the outer cylinder (1) are provided with connecting plates (4), and the two connecting plates (4) are connected by the first bolt (5).

8. The venting device for ships transporting hazardous liquid chemicals in bulk according to claim 7, characterized in that, Fireproof mesh (6) is provided on one end of the outer cylinder (1) opposite to the inner cylinder (2).

9. The venting device for a vessel transporting hazardous liquid chemicals in bulk according to claim 8, characterized in that, The outer cylinder (1) is provided with an installation ring (7), which is connected to the fireproof net (6) by a second bolt (8).

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