CN105457193A - A new type of smoke exhaust pipe fireproof net device for ships - Google Patents

Abstract

The invention discloses a novel marine smoke exhaust pipe fireproof net device, which is characterized by comprising a cylindrical bracket fixedly mounted on the smoke exhaust pipe, a side fireproof net being arranged on the side of the bracket and a top fireproof net being arranged at the end thereof.

Description

A new type of smoke exhaust pipe fireproof net device for ships

technical field

The invention relates to a smoke exhaust device for a ship, in particular to a novel smoke exhaust pipe fireproof net device for a ship.

Background technique

Due to the rapid development of modern shipbuilding, in some areas with relatively good environment, the working environment of staff is clearly stipulated in the latest statutory regulations. Work ships that cannot meet the corresponding requirements are not allowed to work in these areas, such as classification symbols "Hab" refers to the requirements for the comfort of the working environment, such as the noise in the working environment, the illuminance of the working environment and the temperature of the working environment. Disperse with the dry sound and filter to reduce the impact of exhaust smoke and dry sound on the surrounding environment.

The smoke exhaust pipe fireproof net device has been used a long time ago. The conventional method is to directly wrap stainless steel mesh at the end of each exhaust pipe, and use a card frame to fasten the end of the exhaust pipe. Although this form is also It can reduce dryness and extinguish sparks, but the following problems will occur. The discharge cross-sectional area of the stainless steel mesh will become smaller, which will increase the back pressure of the exhaust smoke of the engine, and the service time will be longer. The air-dry sound is even louder, and the engine cannot emit the original power. It needs to be simple in structure, easy to disassemble, beautiful in appearance and reduce the dry sound to become the important purpose of the patent of the present invention.

Contents of the invention

In order to overcome the deficiencies of the prior art, the invention provides a novel smoke exhaust pipe fireproof net device for ships.

The technical solution adopted by the present invention to solve its technical problems is:

The novel smoke exhaust pipe fireproof net device for ships is characterized in that it includes a cylindrical bracket fixedly installed on the smoke exhaust pipe, the side of the bracket is provided with a side fireproof net and its end is provided with a top fireproof net.

The bracket is cylindrical and includes several arc-shaped ribs and three annularly distributed support bars. A rib is arranged between two adjacent support bars, and three corresponding ribs form a circular support. The end is provided with two cross-shaped end bars.

Nuts are welded on the smoke exhaust pipe and the bracket, and the side fireproof net is rolled into a cylindrical shape with the same diameter as the smoke exhaust pipe, and is set in the bracket, and the bracket is fixed on the On the smoke exhaust pipe, the side fireproof net is clamped between the bracket and the smoke exhaust pipe.

The beneficial effects of the present invention are: the novel smoke exhaust pipe fireproof net device is based on the principle of increasing the cross-sectional area of the exhaust to ensure only the original back pressure, and to disperse the dry sound and sparks through the stainless steel mesh to reduce the propagation distance of the dry sound It can be disassembled and assembled at the same time, easy to maintain, no spot welding is required, and the appearance is beautiful. It can be used as a fire net for various exhaust pipes.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a structural view of the present invention;

Fig. 2 is an exploded view of the present invention;

Fig. 3 is an enlarged cross-sectional view of the present invention.

detailed description

Referring to Fig. 1 to Fig. 3, the present invention discloses a novel smoke exhaust pipe fireproof net device for ships. The device is composed of two parts, a cylindrical bracket and a fireproof net. The cylindrical bracket is respectively composed of a welding nut 1 and a The bolts 3 and nuts 4 on the cylindrical bracket and the cylindrical bracket 5 composed of flat iron, the welding nut 1 is directly welded, and the end of the smoke exhaust pipe to be installed is used as a connecting member for the fixed installation of the new smoke exhaust pipe fireproof net device. Fully welded. As for the two nuts 4 on the frame, one is welded on the frame to fasten and connect the smoke exhaust pipe fireproof net device and the end of the smoke exhaust pipe through the bolt 3, while the other nut acts as a lock to prevent exhaustion. The smoke pipe vibrates during the exhaust process, which loosens the connecting bolt 3. The bracket includes several arc-shaped ribs and three annularly distributed support bars. There is a rib between two adjacent support bars, and the three corresponding ribs form a The support is circular, and the end of the support is provided with two cross-shaped end bars, so that the welded support can ensure a smooth surface.

The second part of the fireproof net is to filter and reduce dryness, including the side fireproof net and the top fireproof net. The side fireproof net is composed of a cylindrical stainless steel filter 2 and the top fireproof net butterfly disc stainless steel filter 6. The two nets are respectively Installed inside the frame, the installation sequence is, first install the butterfly disc stainless steel filter screen 6 on the inner end of the cylindrical bracket, and then install the cylindrical stainless steel filter screen inside the frame, so that the cylindrical stainless steel filter screen 6 The filter screen 2 end withstands the disc type stainless steel filter screen 6, and the other end of the cylindrical stainless steel filter screen is compressed and fixed with the connecting bolt 3, and the butterfly disc type stainless steel filter screen 6 can not make relative movement simultaneously.

As shown in the figure, the cross-sectional area of the smoke exhaust pipe shown is the same as that of the disc-type stainless steel filter, and the cylindrical surface area of the cylindrical filter is increased so that the back pressure of the smoke exhaust pipe will not increase, ensuring the exhaust of the engine. The gas is smooth, and 100% of the original power is emitted. The stainless steel mesh will block part of the noise sparks and play a role in breaking up, reducing the noise transmission to the open deck position of about 20 meters. Our shipyard has done experiments on the 79-meter DP2 offshore engineering ship, so that it can be used in the open deck. The test points at the standard positions of Hab at the front, middle and rear of the open deck are reduced by 1 to 2 decibels.

The above is a detailed introduction to a new type of marine smoke exhaust pipe fireproof net device provided by the embodiment of the present invention. In this paper, specific examples are used to illustrate the principle and implementation of the present invention. The description of the above embodiment is only for To help understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation and scope of application. In summary, the content of this specification It should not be construed as a limitation of the invention.

Claims (3)

1. Novel marine smoke exhaust pipe flame screen device, is characterized in that: comprise the cylindrical stent be fixedly installed on smoke exhaust pipe, and the side of this support is provided with side flame screen and its end is provided with top flame screen.

2. Novel marine smoke exhaust pipe flame screen device according to claim 1, it is characterized in that: described support is cylindrical shape, it comprises the support bar of some circular arc ribs and three annular distribution, a rib is provided with between two adjacent support bars, and three corresponding ribs form an annular support, the end of described support is provided with the cross-shaped end bar of twenty percent.

3. Novel marine smoke exhaust pipe flame screen device according to claim 1, it is characterized in that: described smoke exhaust pipe and support are all welded with nut, described side flame screen is rolled into the diameter tubular identical with smoke exhaust pipe diameter, and be arranged in support, described support is fixed on smoke exhaust pipe by screw rod with coordinating of nut, and described side flame screen is clamped between support and smoke exhaust pipe.