KR102517245B1 - Sound Absorption Panel for Heating Pipe - Google Patents

Abstract

The present invention relates to a sound absorbing board for heating pipes that can facilitate the heating pipes of a building and efficiently prevent inter-floor noise. A sound absorbing board for a heating pipe according to the present invention includes an upper panel and a vibration panel coupled to a lower side of the upper panel, the upper panel includes sawdust or wood powder, and is formed on the upper surface in a first direction. A first pipe line, a second pipe line formed in a direction orthogonal to the first pipe line, and a third pipe line formed in an arc shape while connecting the first pipe line and the second pipe line are formed, wherein the The vibrating panel includes a first panel having a plurality of first grooves on one side thereof, coupled to the first panel through a vibration film, and having a second groove having the same size and shape at a position opposite to the first groove. It is characterized by comprising a second panel and a vibrating film disposed between the first panel and the second panel.

Description

Sound absorption panel for heating pipe {Sound Absorption Panel for Heating Pipe}

The present invention relates to a sound absorbing board for heating pipes that can facilitate the heating pipes of a building and efficiently prevent inter-floor noise.

Recently, as the problem of inter-floor noise in multi-family houses or apartments has emerged, measures to solve this problem or legal institutionalization problems are being actively discussed.

1 is a cross-sectional view showing an example of building construction standards that are currently standardized. According to the standard of FIG. 1, a lightweight aerated concrete layer 2 and a finishing mortar layer 3 are sequentially formed on the upper side of the concrete slab layer 1. In addition, although not specifically shown in the drawing, a heating pipe for ondol heating of the building is installed on the upper side of the lightweight aerated concrete layer 2, and a finishing mortar layer 3 is placed on the upper side of the heating pipe installed in this way.

In addition, a sound insulation mat 4 is installed between the concrete slab layer 1 and the lightweight aerated concrete layer 2 to block noise, and a side buffer 5 is provided between the laminate and the side wall.

The sound insulation mat 4 is for blocking noise generated in the upper floor from being transmitted to the lower floor through the medium of the building, and is mainly composed of a material capable of absorbing sound.

The current construction standard shown in the drawing absorbs the noise generated from the upper floor through the sound insulation mat (4) and installs a buffer material (5) on the inner side of the side wall so that the impact applied to the finishing mortar layer (3) affects the side wall. This is to block the transmission to the neighboring space through it.

In addition, Korean Utility Model Registration No. 20-0379075 discloses a sound-absorbing and sound-insulating material using first and second foam layers having different densities, respectively. This is to prevent noise by dispersing vibration by overlapping porous foam layers having different densities.

However, the above methods have a disadvantage in that they have limitations in efficiently eliminating the problem of inter-floor noise generated in buildings.

In addition, in the above building structure, there is a disadvantage in that heat loss is generated as the heat generated in the heating pipe is transmitted to the lower side through the lightweight aerated concrete layer 2.

The present invention has been created in view of the above circumstances, and an object of the present invention is to provide a sound absorbing board for heating pipes that can facilitate heating pipes while reducing inter-floor noise of buildings and also minimize heat loss of buildings.

A sound absorbing plate for heating pipes according to the present invention for realizing the above object is provided with an upper panel and a vibration panel coupled to the lower side of the upper panel and converting impact energy or sound wave energy applied through the upper panel into vibration energy, The upper panel is composed of sawdust or wood powder, and a first pipe line formed in a first direction on the upper surface, a second pipe line formed in a direction perpendicular to the first pipe line, and a first pipe line formed in a first direction. A third pipeline line formed in an arc shape while connecting between the pipeline line and the second pipeline line is formed, and the vibration panel faces a first panel having a plurality of first grooves on one side and facing the first groove. a second panel provided with a second groove having the same size and shape at a location where the vibration film is disposed between the first panel and the second panel, wherein the first or second panel is made of foamed resin. characterized by being

In addition, it is characterized in that a lower panel is additionally provided on the lower side of the vibration panel.

In addition, the lower panel is characterized in that it is configured to include sawdust or wood flour.

In addition, the vibration panel is configured to additionally include one or more through holes, and the upper panel and the lower panel are coupled to each other through the through hole.

In addition, the upper panel or the lower panel is characterized in that configured to further include a porous mineral material.

In addition, the porous mineral material is characterized in that it includes at least one of a porous ceramic and zeolite.

In addition, the first or second panel is characterized in that it has two or more types of pores.

delete

In addition, the first panel and the second panel are characterized in that composed of materials having different densities.

In addition, it is characterized in that the vibrating film is composed of an organic material.

delete

delete

In addition, it is characterized in that the vibrating film is composed of a metal thin film.

In addition, it is characterized in that the sizes of the first or second grooves are two or more.

In addition, it is characterized in that the shape of the first or second groove is two or more types.

delete

delete

delete

According to the present invention having the above configuration, it is possible to easily construct the heating pipe, there is provided a sound absorbing plate for the heating pipe that can reduce the problem of inter-floor noise of the building.

1 is a cross-sectional view showing an example of a general building construction standard.
Figure 2 is a perspective view showing the external shape of the sound absorbing plate for heating pipes according to a first embodiment of the present invention.
Figure 3 is a cross-sectional view taken along the line A-A 'of the sound absorbing plate for heating pipes shown in FIG.
4 is an exploded perspective view of the vibrating panel 30 in FIG. 3;
5 is a view for explaining the sound absorbing function of the sound absorbing plate for heating pipe according to the present invention.
6 is a view showing a shape in which a plurality of sound absorbing plates 100 shown in FIG. 2 are arranged at positions where pipes are to be implemented.
Figure 7 is a view showing the shape of the pipe implemented on the sound absorbing plate 100 in FIG.
8 is a perspective view showing another configuration example of the vibrating panel of the present invention.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings. However, the embodiments to be described below are illustrative of one preferred embodiment of the present invention, and the examples of these embodiments are not intended to limit the scope of the present invention.

2 is a perspective view showing the appearance of a sound absorbing plate for heating pipes according to a first embodiment of the present invention, and FIG. 3 is a cross-sectional view taken along line AA' of FIG. 2 .

In this embodiment, the sound absorbing plate 100 is composed of an upper panel 10, a lower panel 20, and a vibration panel 30 installed therebetween.

The upper panel 10 has a first pipe line 11 for supporting pipes installed in a first direction, that is, a transverse direction, and a second direction perpendicular to the first pipe line 11, that is, a vertical A second pipe line 12 for supporting pipes installed in the direction and a third pipe line 13 installed in an arc shape while connecting the first pipe line 11 and the second pipe line 12 are It is available. Here, the distance between each pipe line (11, 12), that is, the distance between the first pipe line 11 and the adjacent first pipe line and the distance between the second pipe line 12 and the second neighboring pipe line is appropriately set according to the building's heating and plumbing construction standards.

The upper panel 10 and the lower panel 20 are mainly composed of sawdust or wood flour, and an appropriate binder is mixed thereto as needed. As the binder, an inorganic binder is preferably employed. Sawdust or wood flour is a by-product produced in the process of crushing wood or commonly sawing wood. The main raw material of sawdust is wood, which has the original pores of wood. And when sawdust is compression molded, a number of pores are formed according to the compressive strength. The higher the compression rate, the smaller the pore size.

4 is an exploded perspective view of the vibration panel 30 . The vibration panel 30 includes first and second panels 31 and 32 and a vibration film 33 coupled therebetween. The first panel 31 is made of a porous material. As the first panel 31, for example, a foamed resin obtained by foaming an organic material such as PVC, nylon, polyester, water-based acrylic, ethylvinyl acetate (EVA), polyvinyl alcohol (PVA), polystyrene, polyurethane, or polyethylene resin is preferable. Moreover, as the first panel 31, expanded styrene resin (styrofoam) is more preferably employed. One side of the first panel 31 is provided with a plurality of hemispherical grooves 31a. Here, the shape or size of the groove 31a is not limited to a specific one.

Like the first panel 31, the second panel 32 is made of a porous material, preferably, for example, PVC, nylon, polyester, water-based acrylic, ethyl vinyl acetate (EVA), polyvinyl alcohol (PVA), polystyrene, or polyurethane. , a foamed resin obtained by foaming an organic material such as polyethylene resin is employed, and a foamed styrene resin (styrofoam) may also be preferably used for the second panel 32 . In addition, a groove 32a having a size and shape corresponding to a position corresponding to the groove 31a is provided on one side of the second panel 32, that is, on the side facing the first panel 31.

In this embodiment, the outer surface of the vibration panel 30 is configured to protrude in a hemispherical shape. This is to increase the contact area between the vibration panel 30 and the first and second exterior panels 10 and 20, and the outer surface of the vibration panel 30 may be configured to be flat.

Also preferably, the first panel 31 and the second panel 32 may be made of materials having different densities. In addition, the sizes of the grooves 31a and 32a provided on the first panel 31 and the second panel 32 are set to be different from those adjacent to each other, so that the sizes of the spherical grooves formed by the grooves 31a and 32a are different from each other. may be set differently.

The first and second panels 31 and 32 are formed by mixing an organic material with a foaming agent and then foaming. Also at this time, a plasticizer may preferably be added. Also, when foaming the first and second panels 31 and 32, it is preferable to form at least two or more types of pores having different sizes.

According to the study of the present inventors, when pores having different sizes are formed in a material, sound absorption and sound insulation functions are improved. 5 is a diagram for explaining these sound absorption and sound insulation functions.

In FIG. 5, reference numeral 200 denotes a porous material in which a plurality of pores are formed. Assuming that a first pore 210 having a relatively large diameter and a second pore 220 having a relatively small diameter exist in the porous material, when a sound wave A is introduced from the outside, the sound wave A enters the medium 200 And it is propagated through the first and second pores (210, 220). However, when the sound wave (A) passing through the first pore 210 enters the second pore 220, the sound wave (A) is reflected or refracted as indicated by a and b. And this phenomenon similarly occurs even when the sound wave (b) passing through the second pore 220 enters the first pore 210. It is believed that this is due to the fact that the resonant frequency of the pore varies depending on the size of the pore.

In general, the sound insulation function of a material is determined by how much sound waves applied from the outside pass through, and the sound absorption function is determined by how much sound waves applied from the outside are absorbed. All materials vibrate when stimulated by external sound waves. At this time, the frequency sound that affects the vibration is absorbed through the process of being converted into vibration energy.

As described above, when pores having different sizes are formed in a medium, sound waves are reflected and refracted in the course of passing through the pores, and the straightness of the sound waves is significantly reduced. That is, the sound insulation function is improved. In addition, sound waves resonate as they pass through pores of different sizes. That is, the sound absorption function is improved as the sound wave energy of various frequency bands is converted into the vibrational energy of the pores.

The vibrating film 33 is made of a material that can easily vibrate by external impact or sound wave energy applied from the outside. As the vibrating film 33, for example, PVC, nylon, polyester, and the like, water-based acrylic, ethyl vinyl acetate (EVA), and polyvinyl alcohol (PVA) may be employed.

In addition, as the vibrating film 33, for example, a metal material that can easily vibrate by external impact or sound wave energy, such as an aluminum thin film, may be employed.

Also, a ferroelectric film may be preferably applied as the vibrating film 33 . At this time, as the ferroelectric film, PVDF, more preferably a β-phase PVDF film is employed. Ferroelectric materials have a function of converting impact energy from the outside into electrical energy. Therefore, when a ferroelectric film is used as the vibrating film 33, impact energy or sound wave energy from the outside is converted into electrical energy to be extinguished, thereby providing a more effective effect in preventing noise between floors of a building.

In the case of manufacturing the vibration panel 30, as shown in FIG. 4, first and second panels 31 and 32 and the vibration film 33 are formed, and then the vibration film 33 is formed on both side surfaces. The vibration panel 30 is formed by bonding the first and second panels 31 and 32 together.

In addition, in the embodiment shown in FIGS. 3 and 4, the outer surface of the vibration panel 30 is configured to protrude in a hemispherical shape. This is to increase the contact area between the vibration panel 30 and the first and second exterior panels 10 and 20, and the outer surface of the vibration panel 30 may be configured to be flat.

Meanwhile, in another preferred embodiment of the present invention, a porous mineral material is mixed in the lower panel 20 below the upper panel 10 . In this case, porous ceramics or zeolites may be preferably used as the porous mineral material.

When the upper and lower panels 10 and 20 are formed by compression molding of sawdust or wood flour, when the compression rate is increased, the size of pores formed in the upper panel 10 and lower panel 20 is reduced, resulting in noise in the low frequency band. While the absorption rate can be increased, the overall number of pores is reduced. In addition, when the compression rate of sawdust or wood powder is lowered, the number of pores provided in the upper panel 10 and the lower panel 20 increases, while the size of the pores increases.

The porous ceramics usually have pores in the unit of μm, and pores in the unit of nm in the case of zeolite. When forming the upper panel 10 and the lower panel 20, when a mixture of sawdust or wood flour and a porous mineral is used, the number of pores provided in the upper panel 10 and the lower panel 20 is not reduced, and micropores are used. Since it is possible to form, it is possible to improve the sound absorption and sound insulation functions of the upper panel 10 and the lower panel 20.

In the case of manufacturing the sound absorption plate 100, after forming the upper and lower panels 10 and 20 and the vibration panel 30, respectively, they are bonded to each other using, for example, an adhesive. Also, in the case of forming the upper panel 10 and the lower panel 20, sawdust or wood powder and a binder are first put into a mixer and mixed well. At this time, the binder is mixed, for example, 5 to 25% by weight with respect to sawdust or binder. In addition, the upper panel 10 and the lower panel 20 are manufactured by pressing and molding this mixture using a mold having the same shape as the outer surface of the vibration panel 30 .

In addition, as a method of manufacturing the sound absorbing plate 100, the following method may be preferably employed. First, a mixture is formed by mixing sawdust or wood flour and a binder. Next, the mixture is laminated to form a first layer for the lower panel 20, and the vibration panel 30 is laminated on top of the first layer. Then, after laminating the second layer for the upper panel 10 on the upper side of the vibration panel 30, pressure is applied to the entire stack to manufacture a sound absorption plate.

The sound absorbing plate 10 having the above structure has a plurality of pores having various sizes formed therein. As described above, when pores having different sizes are formed in a medium, sound waves are reflected and refracted in the course of passing through the pores, and the straightness of the sound waves is significantly reduced. That is, the sound insulation function is improved. In addition, sound waves resonate as they pass through pores of different sizes. In other words, the sound absorption function is improved as the sound wave energy of various frequency bands is converted into the vibrational energy of the pores.

Further, for example, a spherical space is formed inside the vibration panel 30, and the vibration film 33 is disposed inside the space. Here, the degree of freedom of vibration of the vibrating film 33 will be set according to the size and number of the spherical inner spaces.

When impact energy or sound wave energy is applied from the outside, the vibration film 33 vibrates in response thereto. That is, a part of impact energy and sound wave energy is converted into vibration energy of the vibration film 33 . In this embodiment, since the first and second panels 31 and 32 are made of a foamed resin having a plurality of pores, most of the vibration energy of the vibration film 33 is generated by the first and second panels 31 and 32. absorbed and destroyed.

In addition, the sound absorption plate 100 is composed of a combination of vibration panels 30 having different densities and upper and lower panels 10 and 20 . When sound wave energy propagates from one medium through another medium, that is, a medium with a different density, it is dispersed or reflected by the difference in density between the two mediums at the interface.

In FIG. 2, when sound wave energy from the outside propagates through the sound absorbing plate 100 according to the present invention, the sound wave energy is preferentially transmitted from the upper panel 10 to the vibration panel 30 and then again from the vibration panel 30 to the lower part ( 20), some of them are removed by being dispersed and absorbed.

In addition, the upper and lower panels 10 and 20 and the first and second panels 31 and 32 of the vibrating panel 30 are provided with pores having two or more types of sizes. Therefore, when the sound wave energy propagates through these panels 10, 20, 31, and 32, dispersion and interference occur in a significant portion, so that sound insulation and sound absorption functions are improved.

In particular, when impact energy or sound wave energy that is not absorbed or sound-insulated by the upper panel 10 passes through the vibration panel 30, the vibration film 33 provided on the vibration panel 30 vibrates in response to the energy. do. That is, impact energy and sound wave energy are converted into vibration energy of the vibrating film 33 . When the vibration film 33 vibrates, impact energy and sound wave energy are generated again. At this time, the frequency band may be changed according to the thickness or material of the material constituting the vibration film 33 . For example, the thinner the thickness of the vibrating film 33 and the higher the elasticity of the material constituting the vibrating film 33, the higher the conversion frequency.

Impact energy and sound wave energy generated by the vibrating film 33 are easily absorbed and removed by the first and second panels 31 and 32 coupled to both sides of the vibrating film 33 .

Also, sawdust has very low thermal conductivity. Therefore, when the sound absorbing plate 10 is formed using such sawdust, the heat energy released from the heating pipes installed in the first to third pipe lines 11 to 13 of the sound absorbing plate 10 is the lower side of the sound absorbing plate 10, that is, Transfer to the slab layer 1 of FIG. 1 is minimized. That is, the heating efficiency of the building is improved.

Next, with reference to FIGS. 6 and 7, a process of constructing a heating pipe using the sound absorbing plate 10 according to the present embodiment will be described.

6 is a view showing a shape in which a plurality of sound absorbing plates 10 according to the present embodiment are disposed at a position where pipes are to be implemented, and FIG. 5 is a view showing a shape in which pipes are placed on a plurality of sound absorbing plates 10 arranged. am.

A plurality of sound absorbing plates 10 according to this embodiment are arranged and arranged in the area where the pipe is to be implemented. In this way, the first pipe line 11 and the second pipe line 12 on the sound absorbing plate 10 are extended while being connected to those of the neighboring sound absorbing plate 10.

In the case of implementing the pipe, as shown in FIG. 7, the straight portion of the pipe 50 is discharged using the first or second pipe lines 11 and 12 of the sound absorbing plate 10, and the third of the sound absorbing plate 10 The curved portion of the pipe 50 is discharged using the pipeline 13. And when the pipe piping is completed in this way, mortar is poured on the upper side to form a finishing mortar layer.

In this embodiment, the piping pipe is stably supported by the first to third piping lines 11 to 13 provided on the sound absorbing plate 10. In particular, since a plurality of pores of different sizes are formed in the sound absorbing plate 10 and the sound absorbing plate 10 has elasticity, sound wave energy and vibration energy propagating from the top to the bottom of the finished mortar layer are absorbed and blocked by the sound absorbing plate 10. do. Therefore, the problem of inter-floor noise, which is a problem in buildings, is greatly reduced.

8 is a perspective view showing an external shape of a vibrating panel 30 according to a second embodiment of the present invention. In this embodiment, the vibration panel 30 is configured with a plurality of through holes 301 . The through hole 301 is for effectively coupling the vibration panel 30 to the upper and lower panels 10 and 20 when the sound absorbing plate 100 is manufactured.

That is, in the vibration panel 30 according to the present embodiment, when a mixture of sawdust or wood powder and a binder is laminated on the lower and upper sides of the vibration panel 30 and then pressed as a whole, the mixture is mutually passed through the through hole 301. By being solidified while being coupled, the vibrating panel 30 is firmly coupled to the upper and lower panels 10 and 20 . And since other parts are substantially the same as those of the above-described embodiment, a detailed description thereof will be omitted.

In the above, the embodiment according to the present invention has been described. However, the present invention is not limited to the above-described embodiments and can be implemented with various modifications within a range that does not deviate from the scope of the present invention.

In the above, the embodiment according to the present invention has been described. However, the present invention is not limited to the above-described embodiments and can be implemented with various modifications within a range that does not deviate from the scope of the present invention.

For example, the shape of the grooves 31a and 32a provided in the first and second panels 31 and 32 is not limited to a hemispherical shape and can be implemented in various shapes.

Also, in the above-described embodiment, the lower panel 20 is not necessarily required. The present invention can also be configured by combining the upper panel 10 and the vibrating panel 30 .

10: upper panel, 11: first pipeline,
12: second pipeline, 13: third pipeline.
20: lower panel, 30: vibration panel.

Claims (20)

An upper panel, a vibration panel coupled to the lower side of the upper panel and converting impact energy or sound wave energy applied through the upper panel into vibration energy, and a lower panel coupled to the lower side of the vibration panel,
The upper and lower panels are composed of sawdust or wood flour,
The upper panel connects a first pipe line formed in a first direction on the upper surface, a second pipe line formed in a direction perpendicular to the first pipe line, and a circular arc connecting the first pipe line and the second pipe line. A third pipeline line formed in a shape is formed,
The vibration panel includes a first panel having a plurality of first grooves on one side thereof, a second panel having second grooves having the same size and shape at a position opposite to the first grooves, and the first panel It is configured with a vibration film disposed between the second panels,
The first or second panel is made of a foamed resin,
The vibration film is composed of an organic material or a metal thin film,
The vibration panel is configured with one or more through holes,
The upper panel and the lower panel are sound absorbing plates for heating pipes, characterized in that coupled to each other through the through hole. delete delete delete According to claim 1,
The upper panel or the lower panel is a sound absorbing board for heating pipes, characterized in that configured to further include a porous mineral material. According to claim 5,
Sound absorbing board for heating pipes, characterized in that the porous mineral material includes at least one of porous ceramics and zeolite. delete According to claim 1,
The first or second panel is a sound absorbing board for heating pipes, characterized in that it has two or more types of pores. According to claim 1,
The first panel and the second panel are sound absorbing plates for heating pipes, characterized in that composed of materials having different densities. delete delete delete delete According to claim 1,
A sound absorbing board for heating pipes, characterized in that the size of the first or second grooves is two or more. According to claim 1,
Sound absorbing board for heating pipe, characterized in that the shape of the first or second groove is two or more. delete delete delete delete delete

Images