CN215111275U

CN215111275U - Passenger roller boat tuber pipe silencing device

Info

Publication number: CN215111275U
Application number: CN202120904702.8U
Authority: CN
Inventors: 林其瀚
Original assignee: Xiamen Shipbuilding Industry Co ltd
Current assignee: Xiamen Shipbuilding Industry Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-12-10
Anticipated expiration: 2031-04-28

Abstract

The utility model relates to a passenger roller boat tuber pipe silencing device, it can include the flat acoustical panel of square wind pipe section and polylith, the both ends of wind pipe section set firmly wind pipe flange for with the tuber pipe fixed connection of both sides, the parallel spaced apart of the flat acoustical panel of polylith is fixed in the wind pipe section, its length direction is unanimous with the wind current direction, the windward terminal surface of flat acoustical panel is convex curved surface. The utility model discloses simple structure, the expense is low, can dispose as required, and the commonality is high to the acoustical panel direction is the same with the wind current direction, and the wind pressure loss is little.

Description

Passenger roller boat tuber pipe silencing device

Technical Field

The utility model relates to a passenger roller ship field specifically relates to a passenger roller ship tuber pipe silencing device.

Background

For some vessels with high comfort requirements, such as the passenger arrival area of a ro-ro passenger, it is necessary to have a comfortable temperature and fresh air, and therefore an air conditioning and ventilation system is required. The noise that the fan produced to and the noise that the air current produced at the inside flow of tuber pipe, all can direct conduction to use area, reduce the comfort level. In order to effectively reduce noise, a silencer needs to be arranged on the ventilation pipeline.

In the design of conventional air conditioner ventilation pipeline, silencing device is generally the standard part of purchase, and its inside sound attenuating structure generally adopts honeycomb form or guide plate form, though has certain noise reduction function, hinders great to the air current simultaneously, easily produces the pressure drop. In addition, the air duct has requirements on installation space, is not flexible to use, and limits the overall arrangement of the air duct.

Disclosure of Invention

The utility model aims at providing a passenger roller boat tuber pipe silencing device to solve above-mentioned problem. Therefore, the utility model discloses a specific technical scheme as follows:

the air pipe silencing device for the passenger roller boat comprises a square air pipe section and a plurality of flat plate type silencing plates, wherein air pipe flanges are fixedly arranged at two ends of the air pipe section and are fixedly connected with air pipes on two sides, the flat plate type silencing plates are fixed in the air pipe section in a parallel and spaced mode, the length direction of the flat plate type silencing plates is consistent with the air flow direction, and the windward end faces of the flat plate type silencing plates are convex curved surfaces.

Further, the flat plate type sound-absorbing plate comprises a rectangular fixed frame and sound-absorbing cotton fixed on the fixed frame.

Further, the noise reduction cotton is fixed through self-tapping screws and sealed with fireproof glue.

Further, the area surrounded by the windward end face is not filled with the silencing cotton.

Furthermore, the flat plate type sound-absorbing plates on the two sides are tightly attached to the inner wall of the wind pipe section.

Furthermore, the windward end surfaces of the flat plate type acoustical panel in the middle are semicircular, and the windward end surfaces of the flat plate type acoustical panel on the two sides are triangular.

Further, the thickness of the flat plate type silencer is 5-10 cm.

The utility model adopts the above technical scheme, the beneficial effect who has is: the utility model discloses simple structure, the expense is low, can dispose as required, and the commonality is high to the acoustical panel direction is the same with the wind current direction, and the wind pressure loss is little.

Drawings

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

FIG. 1 is a perspective view of a muffler for a passenger roller boat air duct according to an embodiment of the present invention;

FIG. 2 is a perspective view of a flat plate type acoustical panel of the muffler assembly for the air hose of the ro-ro passenger ship shown in FIG. 1;

FIG. 3 is a schematic view illustrating the operation of the muffler for the air hose of the ro-ro passenger ship shown in FIG. 1;

fig. 4 is a schematic view showing an application of the muffler for a passenger rolling vessel duct shown in fig. 1.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

As shown in FIGS. 1 and 2, a muffler device 1 for a passenger roller-coaster duct may include a square duct section 11 and a plurality of flat plate muffling panels 12. Wherein, the two ends of the air duct section 11 are fixedly provided with air duct flanges 13 for fixedly connecting with the air ducts at the two sides. A plurality of flat plate type sound-absorbing plates 12 are fixed in the wind pipe section 11 in parallel and at intervals, and the length direction of the flat plate type sound-absorbing plates is consistent with the wind flow direction. The panel type sound-deadening panel 12 may include a rectangular fixing frame 121 and sound-deadening cotton 122. The fixing frame 121 may be made of a galvanized plate. The noise damping cotton 122 may be fixed to the fixing frame 121 by a self-tapping screw and sealed with a fire-proof adhesive. The air flow enters from one side of the passenger roller ship air pipe silencer 1, the noise value before entering is dBX, after entering the silencer 1, part of noise is absorbed by the flat plate type silencer 12 in the rectangular air pipe, the air flow flows out from the other side of the passenger roller ship air pipe silencer 1, the noise value is changed into dBY, the silencing function is realized, the silencing value is dB (X-Y), and as shown in figure 3, arrows represent air flow paths.

The windward end surface 123 of the flat plate type sound-absorbing plate 12 is a convex curved surface so as to reduce wind resistance. Specifically, the windward end surfaces of the flat plate type sound-absorbing plates 12 in the middle are semicircular, and the windward end surfaces of the flat plate type sound-absorbing plates 12 on the two sides are triangular. It should be understood that the flat plate acoustical panel 12 may also be semicircular on the windward end. In the illustrated embodiment, the area surrounded by the windward end face 123 is not filled with sound-deadening cotton 122. The windward end face 123 may be made of a galvanized plate or the like and welded to the fixing frame 121.

In the embodiment shown, the flat plate type sound-absorbing plates 12 on both sides are closely attached to the inner wall of the wind pipe section 11, so that the wind flow is prevented from directly acting on the pipe wall, and the noise can be reduced.

The thickness of the flat plate type sound-deadening plate 12 may be set as desired, and is generally set to 5 to 10 cm. The length of the flat plate type sound-absorbing plate 12 can be the same as that of the wind pipe section 11, or can be slightly smaller than that of the wind pipe section 11.

According to the actual arrangement of the air pipes, the information such as the specification, the length, the number of the elbows, the air quantity of the fan, the static pressure value of the fan and the like is collected, the noise value dBX existing in the air pipes is calculated, and according to the noise value requirement dBY of a service place, the noise value dB (X-Y) required to be eliminated through a silencer is obtained, so that a corresponding silencer is arranged in the air pipes. The muffling devices can be stacked, as shown in fig. 4, and the muffling device 100 and the muffling device 200 can together fulfill the noise reduction requirements of the effect. The

muffling devices

100 and 200 are the above-mentioned passenger roller ship air pipe muffling device 1, and the number of the flat plate muffling plates 12 may be the same or different.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The air pipe silencing device of the passenger roller ship is characterized by comprising a square air pipe section and a plurality of flat plate type silencing plates, wherein air pipe flanges are fixedly arranged at two ends of the air pipe section and are fixedly connected with air pipes on two sides, the flat plate type silencing plates are fixed in the air pipe section in a parallel and spaced mode, the length direction of the flat plate type silencing plates is consistent with the air flow direction, and the windward end surfaces of the flat plate type silencing plates are convex curved surfaces.

2. The passenger roller boat air hose silencer according to claim 1, wherein said flat plate silencer includes a rectangular fixing frame and silencer cotton fixed to said fixing frame.

3. The passenger roller boat air duct silencer according to claim 2, wherein the silencing cotton is fixed by self-tapping screws and sealed by fire-proof glue.

4. The passenger roller vessel air duct silencer according to claim 2, wherein the area surrounded by the windward end surface is not filled with the silencing cotton.

5. The passenger roller boat air hose silencer according to claim 1, wherein the flat plate acoustical panels on both sides are closely attached to the inner wall of the air hose section.

6. The passenger roller mill air pipe silencer according to claim 1 or 5, wherein the center plate-type silencer has a semicircular windward end surface, and the two side plate-type silencers have triangular windward end surfaces.

7. The passenger roller mill air duct silencer according to claim 1, wherein the flat plate silencer has a thickness of 5-10 cm.