Protection device for explosion-proof sheet of smoke exhaust pipe

Abstract

The invention provides a smoke exhaust pipe anti-explosion piece protection device which comprises a body, the body is fixedly connected to the tail end of a branch pipe section where an anti-explosion piece is installed, and a ventilation part is arranged on the body. The structure is simple, material selection is convenient, the protection purpose can be achieved by selecting the smoke exhaust pipe, welding the flange and the pipe and manufacturing a section of short pipe, the process is simple, and the occupied space is small; after the anti-explosion device is adopted, the anti-explosion sheet does not need to be arranged at a high position and is not required to be arranged opposite to a dead angle position of a hull wall plate, but can be arranged at a channel and is close to a platform, and generally, a platform does not need to be additionally built for operation and maintenance, so that materials are saved, and the cost is reduced.

Description

Technical Field

[0001] This invention belongs to the field of marine exhaust pipe design technology, and specifically relates to an explosion-proof protection device for exhaust pipes. Background Technology

[0002] Due to increasingly stringent requirements for reducing air pollutant emissions from ships, more and more vessels are using LNG as fuel. LNG residue in the diesel engine exhaust pipe can cause sudden combustion, leading to a sudden increase in pipe pressure and potentially an explosion. This poses risks such as personal injury to crew members and damage to shipboard equipment. Therefore, explosion-proof diaphragms are necessary to install on the exhaust pipe, allowing the explosive gases to be quickly released. The explosion-proof diaphragms are installed on branch sections of the main exhaust pipe and secured with bolts using special flanges at the front and rear. Figure 1-3 As shown.

[0003] When a blast-proof disc ruptures, fragments and debris fly out, and the gas that escapes is at a high temperature. For shipboard safety reasons, the placement of blast-proof discs often has high requirements. They cannot be placed in passageways or other areas frequently visited by personnel, nor can they face equipment. At the same time, there must be sufficient space for routine inspection, maintenance, and replacement. However, shipboard funnels have limited space, and equipment piping is complex, so the placement often cannot meet these requirements. Summary of the Invention

[0004] To address the problems existing in the prior art, a smoke exhaust pipe explosion-proof disc protection device is proposed. The smoke exhaust pipe explosion-proof disc protection device includes a body, which is fixedly connected to the end of the branch pipe section where the explosion-proof disc is installed, and the body is provided with a vent.

[0005] Furthermore, the main body is a cylindrical structure, and the main body is coaxially connected to the branch pipe section via a flange.

[0006] Furthermore, a notch is provided on the side wall of the main body, and the vent is a stainless steel wire mesh provided in the notch.

[0007] Furthermore, the body is arranged horizontally, and the stainless steel wire mesh is located above the horizontal plane where the central axis of the body is located.

[0008] Furthermore, the ends of the body are closed.

[0009] Furthermore, the end of the body is welded securely with a sealing plate.

[0010] Furthermore, the sealing plate forms an angle with the vertical plane.

[0011] The explosion-proof protective device for exhaust pipes provided by this invention has the following advantages over the prior art:

[0012] This invention has a simple structure and convenient material selection. Based on the selection of exhaust pipe material, the flange is welded to the pipe, and a short pipe can be made to achieve the protection purpose. The process is simple and occupies little space. With this application, the explosion-proof plate does not need to be arranged in a high position or in the dead corner of the hull plate. Instead, it can be arranged in the passage and close to the platform. Generally, there is no need to build a separate platform for operation and maintenance, which saves materials and reduces costs. Attached Figure Description

[0013] Figure 1 A schematic diagram of the installation of existing explosion-proof sheets;

[0014] Figure 2 Schematic diagram I of the existing explosion-proof sheet structure (top view);

[0015] Figure 3 Schematic diagram of the existing explosion-proof sheet structure II (front view);

[0016] Figure 4 This is a schematic diagram of the installation of the explosion-proof protective device of this application;

[0017] Figure 5 This is a schematic diagram of the explosion-proof protective device of this application. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Reference Figure 4-5 This application proposes a smoke exhaust pipe explosion-proof disc protection device. A protective device is designed at the end of the explosion-proof disc, consisting of a flange, a body, a stainless steel wire mesh, and a sealing plate. The body has a cylindrical structure and is coaxially connected to the branch pipe section via the flange. The end of the body is welded securely with the sealing plate. A notch is provided on the side wall of the body, and a stainless steel wire mesh is installed in the notch. The body is horizontally arranged, with the stainless steel wire mesh located above the horizontal plane containing the central axis of the body. The sealing plate forms an angle with the vertical plane.

[0020] The protective cover is welded securely at its end with a sealing plate. After the gas bursts through the explosion-proof diaphragm, the pressure drops after being buffered by the protective cover, and then it is released upwards along the stainless steel wire mesh of the protective device. The shattered fragments remain inside the protective cover, thus protecting personal and equipment safety. This design allows it to be placed near a platform, or mounted on a low platform for operation and maintenance.

[0021] In summary, these are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. All equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the specification are within the scope of the present invention.

Claims

1. A smoke exhaust pipe explosion-proof protection device, characterized in that: It includes a main body, which is fixedly connected to the end of the branch pipe section where the explosion-proof sheet is installed, and the main body is provided with a vent.

2. The apparatus according to claim 1, characterized in that: The main body is a cylindrical structure, and the main body is coaxially connected to the branch pipe section through a flange.

3. The apparatus according to claim 2, characterized in that: The body has a notch on its side wall, and the vent is a stainless steel wire mesh located in the notch.

4. The apparatus according to claim 3, characterized in that: The main body is arranged horizontally, and the stainless steel wire mesh is located above the horizontal plane where the central axis of the main body is located.

5. The apparatus according to claim 1, characterized in that: The end of the body is closed.

6. The apparatus according to claim 5, characterized in that: The end of the body is welded securely with a sealing plate.

7. The apparatus according to claim 6, characterized in that: The sealing plate forms an angle with the vertical plane.

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