KR20110045710A - Silencer for exhaust pipe - Google Patents

Abstract

PURPOSE: A muffler for an exhaust pipe is provided to maintain excellent noise decrease effect in spite of long time use by conveniently replacing a sound-absorbing material which is filled in a replace unit. CONSTITUTION: A muffler for an exhaust pipe comprises a body(110), a funnel member(120) and a replace unit(130). The funnel member is penetrated through the center of the body. A plurality of intake cavities(122) is formed on the funnel member. The sound-absorbing material absorbs and filters exhaust gas. The replace unit is installed along the outer circumference of the body. The replace unit comprises an attachable surface(132) and an inserting space(134). The attachable surface has the same direction as the outer circumference of the body. The attachable surface is bolted in the body.

Description

Exhaust Silencer {SILENCER FOR EXHAUST PIPE}

The present invention relates to an exhaust pipe silencer, and more particularly, to reduce the noise generated according to the exhaust flow rate of the exhaust gas after combustion of the engine engine and the generator in the ship, the silencer for exhaust pipe that can prevent pollution as much as possible It is about.

In general, during the combustion of an internal combustion engine such as a medium and large marine engine, high-temperature, high-pressure explosion sounds are discharged to the upper part of the communication through the exhaust pipe together with the exhaust gas, thereby generating high noise in the residential area of the adjacent ship. In order to prevent this, the cross section inside the muffler is changed to reduce the engine noise or the sound absorbing material is provided inside the muffler to absorb and attenuate the acoustic energy.

When described with reference to the accompanying drawings for the conventional marine silencer as follows.

1 is a state diagram of a conventional marine silencer is installed, Figure 2 is a cross-sectional view of the silencer in FIG.

As shown in Figure 1 and 2, the conventional marine silencer is configured to be connected to the exhaust pipe 10 is connected to the engine (not shown) on one side, the discharge pipe 20 is discharged to the other side.

Silencer 30 is made of a cylindrical shape to maintain the proper diameter and length, both ends of the body 31 and the fastening hole 31a of the body 31, the fastening hole (31a) is formed to be matched inside the The cylindrical communication member 40 having a plurality of sound absorbing holes 41 formed on the outer circumference thereof is fixed to protrude out of the fastening hole 31a at the upper and lower ends of the communication member 40, and the exhaust pipe 10 is disposed. And a first and second flange portions 50 and 51 fastened to and fixed to the discharge pipe 20, and sound absorbing material 60 filled in an appropriate thickness on the outer circumference of the communication member 40.

At this time, the sound absorbing material 60 is wound around the outer periphery of the communication member 40, the noise generated from the engine passes through the sound absorbing hole 41 of the communication member 40 has a function to reduce the noise.

Referring to the operation state of the conventional marine silencer configured as described above, while the noise generated from the engine and the high-temperature exhaust gas passes through the communication member 40 inside the body 31 through the exhaust pipe 10 at the same time the sound absorbing hole 41 And the soot and dust of the exhaust gas are absorbed by the sound absorbing material 60, and the noise is not reduced by the blockage of the space of the sound absorbing material. It remains cumulative.

Thus, the exhaust gas is reduced noise is discharged to the outside through the discharge pipe 20 is connected in communication with the second flange portion 51 of the body portion (31).

However, in the conventional silencer 30, the noise is well reduced at the initial stage of installation, but when used for two years or more, soot and dust are attached to the sound absorbing material 60, so that the function of the sound absorbing material is lowered so that the noise is not effectively reduced. . Accordingly, in order to increase the noise performance again, it is necessary to replace the silencer 30 itself or the sound absorbing material 60, but it is difficult to replace the silencer 30 itself, and there is a problem in that only the sound absorbing material 60 can be replaced due to the silencer structure. .

The present invention has been invented to solve the above problems, the object is to install a replacement unit that can be removed, mounted from the cylindrical silencer body, so that the replacement of the sound absorbing material is filled in the interior of the replacement unit In addition, it is to provide a silencer for the exhaust pipe that can effectively reduce the noise according to the replacement of the sound absorbing material even for long time use of the silencer.

In order to achieve the above object, according to the present invention, the exhaust member is sucked between the body, the communication member is installed through the center of the body and a plurality of suction holes are formed, the body and the communication member to reduce noise and filtering Provided is a silencer for an exhaust pipe including a replacement unit installed to be detachably mounted from a body to enable replacement of a sound absorbing material.

And the replacement unit, one or more installed along the outer periphery of the body, having the same side as the outer periphery of the body, the attachment surface bolted to the body, the insertion surface is opened to enable the replacement of the sound absorbing material to the rear side of the attachment surface It may include a space portion.

Furthermore, the insertion space portion may be formed as a mesh to allow the inflow of the exhaust gas, and the sound absorbing material inserted into the insertion space portion may be installed to have a cylindrical or polygonal shape.

According to the exhaust pipe silencer of the present invention, in order to solve the problem that the noise reduction effect is lowered by using the sound absorber in the conventional silencer for a long time without replacing the sound absorbing material by installing a replaceable replacement unit of the sound absorbing material to the silencer body, The sound absorbing material can be replaced even after long time use, so the noise reduction effect is kept excellent, and the exhaust gas is filtered to provide the effect of preventing pollution as much as possible.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It is not limited.

Figure 3 is an exploded perspective view of the exhaust pipe silencer according to an embodiment of the present invention, Figure 4 is a cross-sectional view of the exhaust pipe silencer according to an embodiment of the present invention, Figure 5 is a silencer for exhaust pipe according to an embodiment of the present invention Front section view.

3 to 5, the exhaust pipe silencer 100 of the present embodiment has an exhaust pipe 10 connected to an engine (not shown) on one side thereof, and an exhaust pipe 20 discharged to the outside on the other side thereof. The connection reduces and filters the noise of the exhaust gases passing through.

Here, the silencer 100 is a body 110, the communication member 120 is installed in the center of the body 110 and the body 110, removable, can be mounted, replace the sound absorbing material 140 is installed therein Unit 130 may be included.

The body 110 may be formed in a cylindrical or polygonal shape having an appropriate diameter and length, and fastening holes 112 having upper and lower surfaces open in the hollow.

The communication member 120 may be installed through the center of the body 110.

The communication member 120 may have a cylindrical shape having a hollow interior, and a plurality of suction holes 122 may be formed on the circumferential surface along the axial direction.

And the upper and lower ends of the communication member 120 protruding to the outside of the body 110 and the first flange portion 124 and the discharge pipe (20: shown in Figure 1) for connection with the exhaust pipe 10, respectively The second flange portion 126 for the connection may be installed through a bolt or welding.

On the other hand, the replacement unit which is installed detachably from the body 110 so that the exhaust gas is sucked between the body 110 and the communication member 120 to replace the sound absorbing material 140 is reduced and filtered is performed ( 130, the insertion space 132 of the circular arc having the same surface as the outer periphery of the cylindrical body 110, the insertion space so that the sound absorbing material 140 can be filled in the form of a triangular prism to the rear side of the attachment surface 132 134 may be formed.

A plurality of bolt holes 133 are formed on the attachment surface 132 to allow removal and installation through fastening with bolts B on the outer circumference of the body 110. The insertion space 134 has an upper surface opening. And it may be manufactured in the form of a mesh (mesh) of the metal material to enable the inlet of the exhaust gas.

In addition, the sound absorbing material 140 inserted into the insertion space 134 may be in the form of a column having an arc or a triangular cross section. Furthermore, the size of the sound absorbing material 140 may be somewhat smaller to improve suction performance. It can be installed in a combination of cylindrical or polygonal shapes.

The replacement unit 130 may be installed along one or more divided along the outer circumference of the cylindrical body (110).

In addition, the sound absorbing material 140 may be supported and installed between the replacement unit 130 between the body 110 and the communication member 120 in which the replacement unit 130 is not installed. When detachable, it may be possible to replace the sound absorbing material 140 located between the replacement unit 130 and the replacement unit 130.

The operation of the exhaust pipe silencer made of such a structure is made as follows.

3 to 5, when the noise generated from the engine and the high-temperature exhaust gas flow into the communication member 120 through the exhaust pipe 10 connected to the first flange part 124, the communication member ( The exhaust gas is discharged to the suction hole 122 of the 120, and the discharged exhaust gas is inserted into the sound absorbing material 140 or the replacement unit 130 of the replacement unit 130 between the replacement unit 130 and the replacement unit 130. Absorbed by the sound absorbing material 140 filled therein, noise is reduced, and foreign matter contained in the exhaust gas may be filtered out.

In this way, the noise is reduced, and the exhaust gas filtered out of the foreign substance is discharged through the suction hole 122 of the communication member 120 again, and the outside through the discharge pipe 20 connected in communication with the second flange portion 126. Is discharged.

Here, as the silencer 100 is used for a long time, soot and dust are attached to the sound absorbing material 140 so that the noise is not effectively reduced.

Accordingly, when replacement of the sound absorbing material 140 is required, the replacement unit 130 is separated by releasing the bolt B from the attachment plate 132 of the replacement unit 130 coupled to the body 110.

Then, the contaminated sound absorbing material 140 is removed from the insertion space 134 of the replacement unit 130, and the new sound absorbing material 140 is refilled, and the sound absorbing material between the replacement unit 130 and the replacement unit 130 together. 140 may also be replaced.

Replacement unit 130 of the replacement of the sound absorbing material 140 is completed is inserted into the body 110 again, is coupled to the body 110 by the bolt (B) serves to act as a silencer (100).

As described above, in the related art, in order to solve the problem that the effect of noise reduction is significantly lowered as a long time of use without replacing the sound absorbing material, the sound absorbing material 140 installed and detachable from the body 110 and filled therein is installed. By installing a replacement unit 130 that can be replaced, the noise reduction is excellently maintained even for long time use of the muffler 100, the exhaust gas can be filtered.

As described above as a specific embodiment of the exhaust pipe silencer according to the present invention, this is only an example, the present invention is not limited to this, it should be interpreted to have the broadest range in accordance with the basic idea disclosed in the present specification. Those skilled in the art can easily change the material, size, etc. of each component according to the application field, and can be combined / substituted the disclosed embodiments to implement a pattern of a timeless shape, but this also does not depart from the scope of the present invention will be. It will be apparent to those skilled in the art that various changes and modifications may be readily made without departing from the spirit and scope of the invention as defined by the appended claims.

1 is a state diagram installed in the exhaust pipe of the conventional vessel,

2 is a cross-sectional view of FIG. 1,

3 is an exploded perspective view of the silencer for the exhaust pipe according to the embodiment of the present invention,

Figure 4 is a plan sectional view of the silencer for the exhaust pipe according to an embodiment of the present invention,

5 is a front sectional view of the silencer for the exhaust pipe according to the embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: silencer 110: body

112: fastening hole 120: communication member

122: suction hole 124, 126: first and second flange portion

130: replacement unit 132: mounting surface

133: bolt hole 134: insertion space

140: sound absorbing material

Claims (5)

Body, A communication member installed through the center of the body and having a plurality of suction holes formed therein; Replacement unit detachable from the body so that the exhaust material is sucked between the body and the communication member to replace the sound absorbing material which reduces noise and filters the filter. Exhaust pipe silencer comprising a. The method of claim 1, The replacement unit, At least one exhaust pipe silencer is installed along the outer circumference of the body. The method according to claim 1 or 2, The replacement unit, An attachment surface bolted to the body and having the same surface as the outer periphery of the body, A silencer for exhaust pipe comprising an insertion space portion whose upper surface is opened to enable replacement of the sound absorbing material to the rear side of the attachment surface. The method of claim 3, wherein The insertion space silencer for the exhaust pipe is formed in the mesh so that the inlet of the exhaust gas. The method of claim 3, wherein The sound absorbing material inserted into the insertion space is installed in the exhaust pipe silencer having a cylindrical or polygonal shape.

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