JP6690981B2 - Sound absorbing material mounting structure, sound absorbing material mounting method, and portable container - Google Patents

Description

  The present disclosure relates to a sound absorbing material mounting structure, a sound absorbing material mounting method, and a portable container including the sound absorbing material mounting structure.

  2. Description of the Related Art In recent years, a portable power generation unit in which a power generation facility is housed in a portable container such as a container has been attracting attention as a power generation facility that meets the power demand for emergency / emergency and the distributed power demand. In such a power generation unit, a container (power generation container) in which power generation equipment such as a power generator and a power source for driving the power generator (for example, an engine or a turbine) is housed is transported to the site by transportation equipment such as a trailer. Used by that. In addition to the container that houses the power generation equipment, a container that houses peripheral equipment such as a heat exchanger (for example, an exhaust heat recovery boiler) for recovering exhaust heat discharged from the power source (exhaust heat By using a recovery container together, cogeneration (combined heat and power) can be supported.

  In such a power generation container and exhaust heat recovery container, noise generated from noise sources such as the engine, turbine, and exhaust heat recovery boiler is absorbed by the inner wall panel in order to prevent the noise from being transmitted to the outside of the container. Wood is installed.

  Conventionally, as a method of attaching a sound absorbing material to an inner wall panel, a reinforcing angle member is fixed to the inner wall panel over its entire length by welding (TIG welding, MIG welding, or MAG welding), and the fixed reinforcing angle is fixed. A method of attaching a sound absorbing material to a member with a rivet or the like has been adopted.

JP, 2008-49721, A

  However, in the above-mentioned conventional mounting method, a great deal of labor is required for welding the angle member, and it is necessary to perform grinder polishing or the like in order to remove burn marks due to welding, which is very troublesome. there were. Moreover, since the angle member is welded to the inner wall panel over its entire length, residual strain may occur in the inner wall panel. When the residual strain occurs in the inner wall panel, a step of removing the strain is required, which requires more labor. Moreover, since the angle member cannot be removed, the inner wall panel itself needs to be removed when the sound absorbing material is replaced, which is inferior in replaceability.

  Patent Document 1 discloses an invention relating to a sound absorbing material mounting structure for mounting a sound absorbing material in a vehicle interior such as an automobile. In the sound absorbing material mounting structure disclosed in Patent Document 1, a slit portion is formed in the sound absorbing material, and a vertical rib portion that can be inserted into the slit portion in correspondence with the slit portion is formed on the back surface side of the interior panel member. The vertical rib is provided upright, and a horizontal rib capable of locking the sound absorbing material is provided at the tip of the vertical rib. However, in the structure for mounting the sound absorbing material disclosed in Patent Document 1, it is necessary to erected each of the plurality of vertical ribs on the interior panel member, which is troublesome to manufacture. Further, since the slit portion is formed in the sound absorbing material, there is a problem that the sound absorbing performance is deteriorated.

  The present invention is an invention made under the conventional problems as described above, and an object thereof is to attach a sound absorbing material to the inner wall panel by a simple and quick method. (EN) Provided is a method of mounting a sound absorbing material, and a portable container having the structure for mounting the sound absorbing material.

(1) The sound absorbing material mounting structure according to the embodiment of the present invention is
A sound absorbing material mounting structure for mounting a sound absorbing material on a wall surface,
A stud bar stud welded to the wall surface,
An angle member having a through hole through which the stud bar is inserted, the angle member being fixed to the wall surface by being combined with the stud bar in a state where the stud bar is inserted through the through hole,
A pressing portion provided on the angle member for holding the sound absorbing material between the wall surface and the wall surface.

  According to the embodiment described in (1) above, the angle member is fixed to the wall surface by joining the angle member to the stud bar that is stud welded to the wall surface. The sound absorbing material is attached to the wall surface by sandwiching the sound absorbing material between the pressing portion provided on the angle member fixed to the wall surface and the wall surface.

  Therefore, compared with the conventional mounting method, since it is not necessary to weld the angle member to the wall surface over the entire length thereof, the time required for the welding can be significantly reduced. Further, by adopting the stud welding, the heat effect due to welding can be minimized as compared with the conventional mounting method. For this reason, it is not necessary to remove burn marks and residual strain by welding, and the working time can be further reduced. Further, by adopting the stud welding, there is no limitation on the assembly worker such as welding qualification unlike the conventional mounting method.

  As a result, the sound absorbing material can be attached to the wall surface by a simple and quick method as compared with the conventional attaching method.

  Moreover, the wall member and the angle member are not directly welded, but the angle member is fixed to the stud bar stud welded to the wall surface. Therefore, as compared with the conventional mounting method, the angle member can be easily removed, and the workability when replacing the sound absorbing material can be significantly improved.

  (2) In some embodiments, in the sound absorbing member mounting structure according to (1), the angle member has a web portion extending in a direction intersecting a wall surface and a through hole. , And a base end side flange portion connected to one end side of the web portion. The pressing portion is formed of a plate-shaped member provided on the other end side of the web portion and extending in a direction parallel to the wall surface.

  According to the embodiment described in (2) above, the angle member has a web portion extending in a direction intersecting a wall surface and a base end connected to one end side of the web portion in which a through hole is formed. And a side flange portion. As such an angle member, for example, a H-shaped steel, an I-shaped steel, an L-shaped steel, a Z-shaped steel, a C-shaped (grooved) steel, and other generally distributed shaped steel, and a flat plate that is bent by press working Various formed angle members can be used. Furthermore, the angle member can also serve as a reinforcing material, and a shape that can secure the required strength can be appropriately selected.

  Further, the pressing portion is composed of a plate-shaped member provided on the other end side of the web portion and extending in a direction parallel to the wall surface. Therefore, the sound absorbing material can be stably held between the pressing portion and the wall surface.

  (3) In some embodiments, in the sound absorbing member mounting structure according to the above (2), the pressing portion is integrally formed with the angle member and is connected to the other end side of the web portion. Consists of parts.

  According to the embodiment described in the above (3), by adopting, as the pressing portion, the front end side flange portion which is integrally formed with the angle member and is connected to the other end side of the web portion, the pressing portion is angle member. The number of parts can be reduced as compared with the case where the member is formed separately from.

  (4) In some embodiments, in the sound absorbing member mounting structure according to (2), the pressing portion is formed separately from the angle member and is fixed to the other end side of the web portion. It consists of boards.

  According to the embodiment described in the above (4), by adopting, as the holding portion, a holding plate formed separately from the angle member and attached to the other end side of the web portion, the holding plate and the wall surface are The sound absorbing material can be sandwiched between them. Further, by fixing the angle member to the stud bar in a state where the holding plate is not attached, workability in fixing the angle member to the stud bar is improved. Further, by fixing the pressing plate to the angle member in a state where the sound absorbing material is attached to the angle member, it is possible to provide a mounting structure that can flexibly cope with the thickness and size of the sound absorbing material.

  (5) In some embodiments, in the sound absorbing member mounting structure according to (2), the pressing portion is integrally formed with the angle member and is connected to the other end side of the web portion. And a holding plate fixed to the tip side flange portion, which is formed separately from the angle member.

  According to the embodiment described in (5) above, the pressing portion is formed separately from the tip side flange portion integrally formed with the angle member and connected to the other end side of the web portion, and the angle member. By adopting both the pressing plate fixed to the tip side flange portion, it is possible to obtain both the operational effects described in the above (3) and (4), and at the same time, By both, the sound absorbing material can be sandwiched between the wall surface and the wall surface.

  (6) In some embodiments, in the sound absorbing member mounting structure according to (3) or (5), the base end side flange portion extends from the web portion toward one side. Then, the tip side flange portion extends from the web portion toward the other side which is the opposite side to the one side.

  According to the embodiment described in (6) above, the base end side flange portion and the tip end side flange portion of the angle member extend from the web portion in opposite directions. As a result, the tip side flange portion is not located on the extension line of the extending direction of the stud bar, so that when the angle member is fixed to the stud bar, the tip side flange portion does not hinder the fixing work. Therefore, workability when fixing the angle member to the stud bar is excellent.

  (7) In some embodiments, in the sound absorbing member mounting structure according to (4), the pressing plate is fixed to the web portion by a rivet or a screw that is inserted in a direction perpendicular to the web portion. To be done. Then, the tips of the rivets or screws come into contact with the sound absorbing material.

  According to the embodiment described in (7) above, the pressing plate can be easily fixed to the web portion of the angle member by the rivet or the screw, and the tip of the rivet or the screw is brought into contact with the sound absorbing material. Thus, it is possible to effectively prevent the sound absorbing material from being displaced or dropped.

  (8) In some embodiments, in the sound absorbing member mounting structure according to (5), the pressing plate is provided with a rivet or a screw inserted in a direction perpendicular to the tip side flange portion. It is fixed to the flange. Then, the tips of the rivets or screws come into contact with the sound absorbing material.

  According to the embodiment described in (8) above, the pressing plate can be easily fixed to the tip end side flange portion of the angle member by the rivet or the screw, and the tip end of the rivet or the screw is brought into contact with the sound absorbing material. By doing so, it is possible to effectively prevent the sound absorbing material from shifting or falling off.

(9) In some embodiments, in the mounting structure according to any one of (1) to (8), the stud bar is a stud bolt having a thread groove formed in a shaft portion. The angle member is connected to the stud bolt by a nut screwed to the stud bolt. And the pitch of the thread groove is JIS
The pitch is the same as or smaller than the pitch of the fine screw specified in B 0207 (1999).

  According to the embodiment described in (9) above, the stud bar (stud bolt) and the angle member can be easily coupled by bolt fastening. Also, by setting the pitch of the thread groove to be equal to or smaller than the pitch of the fine thread, the stud bar and the angle member can be firmly coupled, and the fastening portion is prevented from loosening due to vibration or the like. You can

(10) The portable container according to the embodiment of the present invention is
A portable container that can be transported by transportation equipment,
The portable container houses a noise source,
A sound absorbing material is attached to the inner wall panel of the portable container by the sound absorbing material attachment structure according to any one of (1) to (9).

  According to the embodiment described in (10) above, in a portable container that can be transported by a transportation device, by attaching a sound absorbing material to an inner wall panel thereof, noise from a noise source housed inside the portable container can be reduced. Can be prevented from leaking to the outside.

In addition, the portable container needs to have a strength that can withstand various assumed loads. In particular, since the transportable container is transported by transportation equipment such as a trailer, it is necessary to have a strength capable of withstanding a vibration load during transportation.
In this regard, according to the embodiment described in (10) above, since the angle member fixed to the inner wall panel via the stud bar serves as a reinforcing material, the rigidity of the inner wall panel can be enhanced.

  (11) In some embodiments, in the portable container according to (10), the portable container houses a generator. The noise generation source is a power generation source for driving the generator.

  According to the embodiment described in (11) above, the portable container is a portable power generation unit in which power generators such as a generator and a power generation source (eg, an engine or a turbine) for driving the generator are housed. Configured as a portable container. As described above, the portable container of the present invention is preferably used as the portable container of the portable power generation unit.

  (12) In some embodiments, in the portable container according to (10), the portable container houses an exhaust heat recovery device for recovering exhaust heat exhausted from a power generation source. The noise source is composed of an exhaust heat recovery device.

  According to the embodiment described in (12) above, the portable container accommodates the exhaust heat recovery device, and the noise generation source recovers the exhaust heat exhausted from the power generation source ( For example, an exhaust heat recovery boiler). That is, the portable container of the present embodiment is configured as a portable container of a portable heat recovery unit that accommodates peripheral devices such as an exhaust heat recovery device. As described above, the portable container of the present invention is also suitably used as the portable container of the portable heat recovery unit.

  (13) In some embodiments, in the portable container according to any one of (11) and (12), the portable container has a hood portion having a ventilation port that opens in a vertical direction. . Further, in the angle member, at least a part of the angle member extends along the vertical direction in the hood portion.

In a portable container that houses a power generation source such as an engine or a turbine and an exhaust heat recovery device such as an exhaust heat recovery boiler, it is necessary to introduce cooling air from outside to cool those devices.
According to the embodiment described in the above (13), by opening the ventilation hole in the vertical direction instead of in the horizontal direction, noise leaking from the ventilation hole is prevented from echoing around the portable container. In addition, the air flows along the vertical direction inside the hood portion having the ventilation port that opens in the vertical direction. Therefore, by extending at least a part of the angle member along the vertical direction in which the air flows, it is possible to suppress the angle member from becoming a resistance to the air flow.

(14) A sound absorbing material mounting method according to an embodiment of the present invention is
A sound absorbing material mounting method for mounting a sound absorbing material on a wall surface,
Stud welding a stud bar to the wall,
A step of fixing an angle member having a through hole through which the stud bar is inserted, to the stud bar in a state where the stud bar is inserted through the through hole, and fixing the wall surface;
A step of sandwiching the sound absorbing material between a pressing portion provided on the angle member and the wall surface.

  According to the embodiment described in (14) above, the sound absorbing material can be attached to the wall surface by a simple and quick method, similarly to the structure for attaching the sound absorbing material described in (1) above.

  (15) In some embodiments, in the method of mounting the sound absorbing material according to the above (14), a step of previously forming a punch hole at a position where a stud bar is welded on a wall surface is performed before the welding step. Further prepare.

  According to the embodiment described in (15) above, the punch hole is preliminarily processed at the position where the stud bar is welded on the wall surface. Therefore, when the stud bar is stud-welded, it is easy to position and position the stud bar.

  According to at least one embodiment of the present invention, a sound absorbing material mounting structure capable of mounting a sound absorbing material on an inner wall panel by a simple and quick method, a sound absorbing material mounting method, and a sound absorbing material mounting structure may be provided. A portable container can be provided.

It is the schematic which showed the attachment structure of the sound absorbing material concerning one Embodiment of this invention. It is the schematic diagram which expanded and showed the cross section of the sound absorbing material concerning one Embodiment of this invention. It is the figure which showed the stud bar concerning one Embodiment of this invention. It is an expanded sectional view showing a mounting structure of a sound absorbing material concerning one embodiment of the present invention. It is an expanded sectional view showing a mounting structure of a sound absorbing material concerning one embodiment of the present invention. It is an expanded sectional view showing a mounting structure of a sound absorbing material concerning one embodiment of the present invention. It is an expanded sectional view showing a mounting structure of a sound absorbing material concerning one embodiment of the present invention. It is the side view which showed the portable container concerning one Embodiment of this invention. It is a top view showing the portable container concerning one embodiment of the present invention. It is a schematic plan view showing the portable container concerning one embodiment of the present invention. It is a flow figure showing the attachment method of the sound-absorbing material concerning one embodiment of the present invention. It is a flow figure showing the attachment method of the sound-absorbing material concerning one embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative positions, and the like of the components described as the embodiments or shown in the drawings are not intended to limit the scope of the present invention thereto, but are merely illustrative examples. Absent.
For example, expressions that represent relative or absolute arrangements such as “in a certain direction”, “along a certain direction”, “parallel”, “orthogonal”, “center”, “concentric”, or “coaxial” are strict. In addition to representing such an arrangement, it also represents a state in which the components are relatively displaced by a tolerance or an angle or a distance at which the same function can be obtained.
For example, expressions such as "identical", "equal", and "homogeneous" that indicate that they are in the same state are not only states that they are in the same state of strictness, but also that there are tolerances or differences in the degree that the same function is obtained. It also represents the existing state.
For example, the representation of a shape such as a quadrangle or a cylindrical shape does not only represent a shape such as a quadrangle or a cylindrical shape in a geometrically strict sense, but also an uneven portion or a chamfer within a range in which the same effect can be obtained. The shape including parts and the like is also shown.
On the other hand, the expressions “comprising”, “comprising”, “comprising”, “including”, or “having” one element are not exclusive expressions excluding the existence of other elements.
Further, in the following description, the same components may be given the same reference numerals and detailed description thereof may be omitted.

  1A and 1B are schematic views showing a mounting structure of a sound absorbing material according to an embodiment of the present invention. FIG. 1A is a plan view, FIG. 1B is a front view, and FIG. 1C is a side view. FIG. 2 is a schematic view showing an enlarged cross section of the sound absorbing material according to the embodiment of the present invention. FIG. 3 is a diagram showing a stud bar (stud bolt) according to an embodiment of the present invention. 4 to 7 are enlarged cross-sectional views of the sound absorbing material mounting structure according to the embodiment of the present invention.

  A sound absorbing material mounting structure 1 according to an embodiment of the present invention is a sound absorbing material mounting structure in which a sound absorbing material 4 is mounted on a wall surface 2 as shown in FIG. The stud bolt 6, the angle member 8 and the holding portion 10 are provided.

  The wall surface 2 is made of a material to which the stud bar 6 made of iron can be stud welded, and is made of, for example, a galvanized steel plate. In some embodiments described later, the wall surface 2 is composed of an inner wall panel 2A that constitutes an inner wall surface of the portable container 100.

  The sound absorbing material 4 is a member for absorbing noise from a noise generating source described later, and is made of a fibrous material such as glass wool or rock wool. In the embodiment shown in FIG. 2, the sound absorbing material 4 is formed by wrapping the outer surface of the cotton-like glass wool 4a with the glass cloth 4b. In addition, in some embodiments, the sound absorbing material 4 may not include the glass cloth 4b.

  As shown in FIG. 3A, the stud bar 6 includes a rod-shaped shaft portion 6A, a head portion 6B provided at one end of the shaft portion 6A and having a diameter larger than that of the shaft portion 6A, Consists of. The front end surface 6b of the head portion 6B has a taper shape that is inclined from the central portion toward the outer peripheral edge toward the shaft portion 6A, and a convex portion 6c is formed at the central position. Then, as shown in FIG. 3B, the head portion 6B is fixed to the wall surface 2 by stud welding in a state where the punch hole 2a in which the convex portion 6c is formed in the wall surface 2 is inserted. The tip surface 6b is melted and smoothed by the stud welding, so that the tip surface 6b is adhered to the wall surface 2. In addition, in the illustrated embodiment, a plurality of stud bars 6 are arranged at intervals in the width direction of the wall surface 2.

  As shown in FIGS. 4 to 7, the angle member 8 has a through hole 8a into which the shaft portion 6A of the stud bar 6 is inserted. The stud bar 6 is fixed to the wall surface 2 by being joined with the stud bar 6 while being inserted into the through hole 8a.

  As shown in FIGS. 1 and 4 to 7, the holding portion 10 is provided on the angle member 8 described above, and is configured to hold the sound absorbing material 4 between the wall surface 2.

  According to the sound absorbing material mounting structure 1 according to the embodiment of the present invention, the angle member 8 is fixed to the wall surface 2 by connecting the angle member 8 to the stud bar 6 stud-welded to the wall surface 2. To be done. The sound absorbing material 4 is attached to the wall surface 2 by sandwiching the sound absorbing material 4 between the wall surface 2 and the holding portion 10 provided on the angle member 8 fixed to the wall surface 2.

  Therefore, as compared with the conventional mounting method, since it is not necessary to weld the angle member 8 to the wall surface 2 over the entire length thereof, the time required for welding can be significantly reduced. Further, by adopting the stud welding, the heat effect due to welding can be minimized as compared with the conventional mounting method. For this reason, it is not necessary to remove burn marks and residual strain by welding, and the working time can be further reduced. Further, by adopting the stud welding, there is no limitation on the assembly worker such as welding qualification unlike the conventional mounting method.

  As a result, the sound absorbing material 4 can be attached to the wall surface 2 by a simple and quick method as compared with the conventional attaching method.

  Moreover, the wall member 2 and the angle member 8 are not directly welded, but the angle member 8 is fixed to the stud bar 6 stud welded to the wall surface 2. Therefore, as compared with the conventional mounting method, the angle member 8 can be easily removed, and the workability when replacing the sound absorbing material 4 can be significantly improved.

  When the above-described sound absorbing material mounting structure 1 is applied to the portable container 100 described later, the type of the sound absorbing material 4 may be changed to a different type depending on the use place of the portable container 100. For example, when the portable container 100 is used in a place where the noise regulation is stricter, the sound absorbing material 4 may be changed to a higher performance one. According to the above-described embodiment, even in such a case, the work for replacing the sound absorbing material 4 is easy.

  In some embodiments, as shown in FIGS. 1 and 4 to 7, the angle member 8 described above has a web portion 8A extending in a direction intersecting with the wall surface 2 and a through hole 8a. And a base end side flange portion 8B connected to one end side of the web portion 8A. The pressing portion 10 is formed of a plate-shaped member provided on the other end side of the web portion 8A and extending in a direction parallel to the wall surface 2.

  In the illustrated embodiment, the web portion 8A extends in a direction perpendicular to the wall surface 2. That is, the pressing portion 10 extends in the direction perpendicular to the web portion 8A. Further, the base end side flange portion 8B extends in a direction parallel to the wall surface 2. As a result, the wall surface 2 and the base end side flange portion 8B come into surface contact with each other, so that the angle member 8 is firmly fixed to the wall surface 2.

  Further, in the illustrated embodiment, the stud bar 8 projects in a direction away from the wall surface 2 from the back surface (the surface opposite to the wall surface 2) of the base end side flange portion 8B. Then, the tip end thereof is in contact with the sound absorbing material 4 so as to be embedded in the sound absorbing material 4 (to make the surface of the sound absorbing material 4 concave). As a result, it is possible to effectively prevent the sound absorbing material 4 from shifting or falling off.

  According to such an embodiment, the angle member 8 described above is connected to one end side of the web portion 8A in which the web portion 8A extending in the direction intersecting the wall surface 2 and the through hole 8a are formed. The base end side flange part 8B is included. As such an angle member 8, for example, various commonly-used angle members 8 such as H-section steel, I-section steel, L-section steel, Z-section steel, and C-section (groove) steel can be used. .

  In some embodiments, as shown in FIGS. 5 and 6, the above-mentioned pressing portion 10 is integrally formed with the angle member 8 and is connected to the other end side of the web portion 8A. Consists of.

  In the embodiment shown in FIG. 5, the tip side flange portion 8C extends in the direction opposite to the direction in which the base side flange portion 8B extends. The angle member 8 is formed in a Z shape in cross section. According to the angle member 8 having such a Z-shaped cross section, the base end side flange portion 8B and the tip end side flange portion 8C extend in opposite directions to each other, so that they are adjacent to each other by one angle member 8. The two sound absorbing materials 4A and 4B can be attached to the wall surface 2.

  On the other hand, in the embodiment shown in FIG. 6, the front end side flange portion 8C extends in the direction opposite to the direction in which the base end side flange portion 8B extends. The angle member 8 is formed in a C shape (groove shape) in cross section. According to the angle member 8 having such a C-shaped cross section, since the base end side flange portion 8B and the tip end side flange portion 8C extend in the same direction as each other, the base end side flange portion 8B and the tip end. By holding the sound absorbing material 4 between the side flange portion 8C and the side flange portion 8C, the sound absorbing material 4 is less likely to be displaced or come off.

  According to such an embodiment, by adopting the tip side flange portion 8C integrally formed with the angle member 8 and connected to the other end side of the web portion 8A as the pressing portion 10, the pressing portion 10 is angled. The number of parts can be reduced as compared with the case where the member is separate from the member 8.

  In some embodiments, as shown in FIG. 7, the above-mentioned pressing portion 10 is composed of a pressing plate 11B formed separately from the angle member 8 and fixed to the other end side of the web portion 8A.

  In the illustrated embodiment, the angle member 8 has an L-shaped cross section having a web portion 8A and a base end side flange portion 8B extending from one end side of the web portion 8A.

  Further, in the illustrated embodiment, the pressing plate 11B has an extending portion 11Ba extending in a direction parallel to the wall surface 2 and a direction orthogonal to the extending portion 11Ba from one end side of the extending portion 11Ba. And a plate-shaped L-shaped member having an extending fixing portion 11Bb. The extending portion 11Ba extends in the same direction as the base end side flange portion 8B. The fixed portion 11Bb is fixed to the other end of the web portion 8A.

  According to such an embodiment, as the above-described pressing portion 10, by using the pressing plate 11B formed separately from the angle member 8 and attached to the other end side of the web portion 8A, the pressing plate 11B is provided. The sound absorbing material 4 can be sandwiched between the wall surface 2 and the wall surface 2. Further, by fixing the angle member 8 to the stud bar 6 in a state where the pressing plate 11B is not attached, workability in fixing the angle member 8 to the stud bar 6 is improved. Further, by fixing the pressing plate 11B to the angle member 8 in a state where the sound absorbing material 4 is attached to the angle member 8, it is possible to provide a mounting structure capable of flexibly adapting to the thickness and size of the sound absorbing material 4. .

  In some embodiments, as shown in FIG. 4, the above-described pressing portion 10 is integrally formed with the angle member 8, and the tip side flange portion 8C connected to the other end side of the web portion 8A and the angle portion 8C. It is composed of a member 8 and a holding plate 11A which is formed separately from the member 8 and is fixed to the tip side flange portion 8C.

  In the illustrated embodiment, the tip side flange portion 8C extends in the direction opposite to the direction in which the base side flange portion 8B extends. The angle member 8 is formed in a Z shape in cross section.

  Further, in the illustrated embodiment, the holding plate 11A is formed of a flat plate-shaped member extending in a direction parallel to the wall surface 2. The holding plate 11A is fixed to the front end side flange portion 8C and extends in a direction opposite to the direction in which the front end side flange portion 8C extends.

  According to such an embodiment, the pressing portion 10 is formed separately from the tip side flange portion 8C integrally formed with the angle member 8 and connected to the other end side of the web portion 8A, and the angle member 8. Also, by adopting both the pressing plate 11A fixed to the tip side flange portion 8C, the sound absorbing material 4 is sandwiched between the wall surface 2 by both the tip side flange portion 8C and the pressing plate 11A. You can

  Further, since the holding plate 11A extends in the direction opposite to the direction in which the tip-side flange portion 8C extends, both the tip-side flange portion 8C and the holding plate 11A are adjacent to each other with the angle member 8 interposed therebetween. The two sound absorbing members 4A and 4B can be held together.

  In some embodiments, as shown in FIGS. 4 and 5, the proximal flange portion 8B described above extends from the web portion 8A toward one side. The tip-side flange portion 8C extends from the web portion 8A toward the other side, which is the opposite side to the one side.

  According to such an embodiment, the base end side flange portion 8B and the tip end side flange portion 8C of the angle member 8 extend from the web portion 8A in directions opposite to each other. As a result, the tip-side flange portion 8C is not located on the extension line of the stud bar 6 in the extending direction, so that when the angle member 8 is fixed to the stud bar 6, the tip-side flange portion 8C does not hinder the fixing work. . Therefore, the workability when fixing the angle member 8 to the stud bar 6 is excellent.

  In some embodiments, as shown in FIG. 7, the pressing plate 11B described above is attached to the web portion 8A by the rivet 12 that is inserted in a direction perpendicular to the web portion 8A. The tip of the rivet 12 contacts the sound absorbing material 4.

  In the illustrated embodiment, the rivet 12 is inserted into the through hole 8Ah formed on the tip side of the web portion 8A and the through hole 11Bbh formed in the fixing portion 11Bb of the holding plate 11B, and the head thereof is caulked. As a result, the pressing plate 11B is fixed to the web portion 8A. Then, the tip of the rivet 12 is in contact with the sound absorbing material 4 so as to be embedded in the sound absorbing material 4 (to make the surface of the sound absorbing material 4 concave).

  It should be noted that screws may be used in place of the rivets 12 at portions where the pressing plate 11A needs to be removed frequently.

  According to such an embodiment, the pressing plate 11B can be easily fixed to the web portion 8A of the angle member 8 by the rivet 12, and the tip of the rivet 12 is brought into contact with the sound absorbing material 4, It is possible to effectively prevent the sound absorbing material 4 from shifting or falling off.

  In some embodiments, as shown in FIG. 4, the above-mentioned pressing plate 11A is fixed to the tip side flange portion 8C by a rivet 12 that is inserted in a direction perpendicular to the tip side flange portion 8C. . The tip of the rivet 12 contacts the sound absorbing material 4.

  In the illustrated embodiment, the rivet 12 is inserted into the through hole 8Ch formed in the tip side flange portion 8C and the through hole 11Ah formed in the holding plate 11A, and the head thereof is caulked, so that the presser foot is pressed. The plate 11A is fixed to the front flange portion 8C. Then, the tip of the rivet 12 is in contact with the sound absorbing material 4 so as to be embedded in the sound absorbing material 4 (to make the surface of the sound absorbing material 4 concave).

  According to such an embodiment, the pressing plate 11A can be easily fixed to the tip side flange portion 8C of the angle member 8 by the rivet 12, and the tip end of the rivet 12 can be brought into contact with the sound absorbing material 4. Thus, it is possible to effectively prevent the sound absorbing material 4 from being displaced or dropped.

In some embodiments, as shown in FIG. 3, the stud bar 6 described above includes a stud bolt 6 in which a thread groove 6a is formed in the shaft portion 6A. As shown in FIGS. 4 to 7, the angle member 8 is coupled to the stud bolt 6 by the nut 7 screwed to the stud bolt 6. The pitch t of the thread groove 6a is determined by JIS
The pitch is the same as or smaller than the pitch of the fine screw specified in B 0207 (1999).

  According to such an embodiment, the stud bolt 6 and the angle member 8 can be easily joined by bolt fastening. Further, by setting the pitch t of the thread groove 6a to be equal to or smaller than the pitch of the fine thread, the stud bolt 6 and the angle member 8 can be firmly coupled, and the fastening portion becomes loose due to vibration or the like. Can be prevented.

  FIG. 8 is a side view showing the portable container according to the embodiment of the present invention. FIG. 9 is a top view showing a portable container according to an embodiment of the present invention.

  A portable container according to an embodiment of the present invention is a portable container 100 that can be transported by a transportation device such as a trailer. The portable container 100 accommodates the noise generation source 102, and the sound absorbing material 4 is attached to the inner wall panel 2A of the portable container 100 by the sound absorbing material attachment structure 1 according to the above-described embodiment.

  In the illustrated embodiment, the portable container 100 is configured by connecting a suction-side hood portion 101A and an exhaust-side hood portion 101B to a standard size container body 100Ab (for example, a 40f container).

  In the illustrated embodiment, reference numeral 102 is a noise generation source (engine 102A), 103 is a generator, 104 is a radiator, 105 is a muffler, 106 is a battery, 107 is an exhaust outlet, 108 is a high-voltage wiring port, and 109 is A control wiring port, 110 is a cooling water drain, 111 is a lubricating oil drain, 112 is a fuel inlet, 113 is a fuel return port, 114 is an oil air outlet, 115 is a sludge discharge port, and 116 is a rainwater drain.

  According to such an embodiment, in the portable container 100 that can be transported by the transportation device, by attaching the sound absorbing material 4 to the inner wall panel 2A thereof, the noise generation source 102 housed inside the portable container 100 can be installed. It is possible to prevent noise from leaking to the outside.

  In some embodiments, the portable container 100 (100A) described above houses a generator 103, as shown in FIGS. 8 and 9. The noise generation source 102 includes an engine 102A for driving the generator 103.

  Although not shown, as the noise generation source 102, a steam turbine, a gas turbine, a fuel cell, or the like may be used as the power generation source for driving the generator 103 instead of the engine 102A.

  According to such an embodiment, the portable container 100 is configured as the portable container 100A of the portable power generation unit in which the generator 103 and the power generation facility such as the power generation source for driving the generator 103 are housed. To be done. As described above, the portable container 100 of the present invention is also suitably used as the portable container 100A of the portable power generation unit.

Further, the portable container 100 needs to have a strength that can withstand various assumed loads. In particular, since the portable container 100 is transported by transportation equipment such as a trailer, it needs to have a strength capable of withstanding a vibration load during transportation.
In this respect, according to the above-described embodiment, the angle member 8 fixed to the inner wall panel 2A via the stud bar 6 serves as a reinforcing member, so that the rigidity of the inner wall panel 2A can be increased.

  In order for the angle member 8 to serve as a reinforcing material for the inner wall panel 2A, it is necessary that the angle member 8 is fixed to the inner wall panel 2A with a predetermined length or more. It is preferable that the inner wall panel 2A extends over the entire width (total height) of the inner wall panel 2A from one end edge to the other end edge.

FIG. 10 is a schematic plan view showing a portable container according to an embodiment of the present invention.
In some embodiments, as shown in FIG. 10, the portable container 100 (100B) described above includes an exhaust heat recovery device 120 for recovering exhaust heat exhausted from a power generation source (not shown). Accommodate. The noise generation source is composed of the exhaust heat recovery device 120.

  The exhaust heat recovery device 120 is configured to recover the exhaust heat discharged from the power generation source housed in the portable container 100A of the portable power generation unit described above, that is, the portable power generation described above. By using it together with the portable container 100A of the unit, it is possible to support cogeneration (cogeneration).

  In the illustrated embodiment, the portable container 100 includes a standard size container body 100Bb (for example, a 20f container). Further, the exhaust heat recovery device 120 includes an exhaust heat recovery boiler 120A. The exhaust heat recovery boiler 120A introduces exhaust gas from the power generation source arranged outside the portable container 100 such as the engine 102A described above through the exhaust gas introduction port 120a. Then, it is configured to generate steam from the exhaust heat of the introduced exhaust gas.

  Further, in the illustrated embodiment, the portable container 100 accommodates various peripheral devices such as the heat exchanger 122, the muffler device 124, the connecting pipe 126, and the damper 128.

  According to such an embodiment, the portable container 100 houses the exhaust heat recovery device 120, and the noise generation source recovers the exhaust heat exhausted from the power generation source (for example, the exhaust heat recovery device 120). It consists of an exhaust heat recovery boiler 120A). That is, the portable container 100 of the present embodiment is configured as a portable container 100B of a portable heat recovery unit that accommodates peripheral devices such as the exhaust heat recovery device 120. In this way, the portable container 100 of the present invention is also suitably used as the portable container 100B of the portable heat recovery unit.

  In some embodiments, as shown in FIG. 8, the above-mentioned portable container 100 has a hood portion 101 having a vent 101O that opens in the vertical direction (the direction in which gravity acts). In the angle member 8, at least a part of the angle member 8 extends in the vertical direction in the hood portion 101.

  In the illustrated embodiment, the portable container 100 has two hood portions 101, an intake side hood portion 101A and an exhaust side hood portion 101B. Then, in the intake side hood portion 101A, the intake side ventilation port 101AO is opened vertically downward. The air flowing in vertically upward from the intake-side vent 101AO is turned inside the intake-side hood 101A and flows vertically downward into the container body 100Ab. Then, it flows along the horizontal direction inside the container body 100Ab.

  On the other hand, in the exhaust side hood portion 101B, the exhaust side vent hole 101BO is opened vertically upward. Inside the intake-side hood portion 101A and the exhaust-side hood portion 101B, the angle member 8 fixed to the inner wall panel 2A extends in the vertical direction. The air that has flowed along the horizontal direction inside the container body 100Ab flows out vertically upward from the exhaust-side vent 101BO.

In the portable container 100 that houses the power generation source such as the engine 102A and the exhaust heat recovery device 120 such as the exhaust heat recovery boiler 120A, it is necessary to introduce cooling air for cooling these devices from the outside.
Therefore, according to such an embodiment, by opening the ventilation port 101O in the vertical direction instead of in the horizontal direction, noise leaking from the ventilation port 101O is prevented from reverberating around the portable container 100. Further, in the interior of the hood portion 101 having the ventilation hole 101O opened in the vertical direction, the air flows along the vertical direction. Therefore, by extending the angle member 8 along the vertical direction in which air flows, the angle member 8 is arranged along the flow direction of the air flow, and the angle member 8 becomes resistant to the air flow. Can be suppressed.

11 and 12 are flow charts showing a method of mounting the sound absorbing material according to the embodiment of the present invention.
A sound absorbing material mounting method according to an embodiment of the present invention is a sound absorbing material mounting method for mounting a sound absorbing material 4 on a wall surface 2. Then, as shown in FIG. 11, the step of stud welding the stud bar 6 to the wall surface 2 (stud bar welding step S2) and the angle member 8 having the through hole 8a through which the stud bar 6 is inserted are formed through the through hole 8a. Between the step of fixing the stud bar 6 to the wall surface 2 with the stud bar 6 inserted thereinto (the angle agent fixing step S3), the pressing portion 10 provided on the angle member 8 and the wall surface 2, And a step of sandwiching the sound absorbing material 4 (sound absorbing material attaching step S4).

  Further, the embodiment shown in FIG. 12 is a flow chart corresponding to one in which the pressing portion 10 is composed of pressing plates 11A and 11B which are separate from the angle member 8 as shown in FIGS. 4 and 7. Then, the above-described sound absorbing material attaching step S4 includes a sound absorbing material positioning step (S41) of positioning the sound absorbing material 4 with respect to the angle member 8 fixed to the wall surface 2, and an angle of the sound absorbing material 4 with the sound absorbing material 4 positioned. The step (holding plate fixing step S42) of sandwiching the sound absorbing material 4 by fixing the holding plates 11A and 11B to the member 8 is included.

  According to such an embodiment, the sound absorbing material 4 can be attached to the wall surface 2 by a simple and quick method similarly to the sound absorbing material attaching structure 1 described above.

  In some embodiments, as shown in FIG. 11, prior to the above-described welding step S1, the method further includes a step of previously forming the punch hole 2a at the position where the stud bar 6 is welded on the wall surface 2.

  The punch hole 2a has, for example, as shown in FIG. 3 (b), a depth h which is approximately the same as the height of the convex portion 6c formed on the head portion 6B of the stud bar 6. Such punch holes can be formed in the wall surface 2 (inner wall panel 2A) by a press machine such as a tread punch press, for example.

  According to such an embodiment, the punch hole 2a is previously processed at the position where the stud bar 6 is welded on the wall surface 2. Therefore, when the stud bar 6 is stud welded, it is easy to position and position the stud bar 6.

  Although the preferred embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the object of the present invention.

1 Sound absorbing material mounting structure 2 Wall surface 2A Inner wall panel 2a Punch holes 4, 4A, 4B Sound absorbing material 4a Glass wool 4b Glass cloth 6 Stud bar (stud bolt)
6A Shaft part 6B Head part 6a Screw groove 6b Tip surface 6c Convex part 7 Nut 8 Angle member 8A Web part 8Ah Through hole 8B Base end side flange part 8C Tip side flange part 8Ch Through hole 10 Holding part 11A Holding plate 11A Holding plate 11Ah Through hole 11B Pressing plate 11Ba Extended portion 11Bb Fixed portion 11Bbh Through hole 12 Rivet 100, 100A, 100B Portable container 100Ab, 100Bb Container body 101 Hood 101A Intake side hood 101B Exhaust side hood 101O Vent 101AO Intake side ventilation Port 101BO Exhaust side vent 102 Noise source 102A Engine 103 Generator 120 Exhaust heat recovery device 120A Exhaust heat recovery boiler 120a Exhaust gas inlet 122 Heat exchanger 124 Muffler device 126 Connection pipe 128 Damper

Claims (12)

A sound absorbing material mounting structure for mounting a sound absorbing material made of fibrous material on a wall surface,
A stud bar stud welded to the wall surface,
An angle member having a through hole through which the stud bar is inserted, the angle member being fixed to the wall surface by being combined with the stud bar in a state where the stud bar is inserted through the through hole,
A pressing portion provided on the angle member, for holding the sound absorbing material between the wall surface and the wall surface ,
The angle member is
A web portion extending in a direction intersecting with the wall surface,
The through hole is formed, including a proximal end side flange portion connected to one end side of the web portion,
The pressing portion is provided on the other end side of the web portion, and is made of a plate-shaped member extending in a direction parallel to the wall surface,
The pressing portion is formed of a pressing plate that is formed separately from the angle member and is fixed to the other end of the web portion.
The pressing plate is fixed to the web portion by a rivet or a screw inserted in a direction perpendicular to the web portion,
The tip of the rivet or the screw contacts the sound absorbing material,
Sound absorbing material mounting structure. A sound absorbing material mounting structure for mounting a sound absorbing material made of fibrous material on a wall surface,
A stud bar stud welded to the wall surface,
An angle member having a through hole through which the stud bar is inserted, the angle member being fixed to the wall surface by being combined with the stud bar in a state where the stud bar is inserted through the through hole,
A pressing portion provided on the angle member, for holding the sound absorbing material between the wall surface and the wall surface ,
The angle member is
A web portion extending in a direction intersecting with the wall surface,
The through hole is formed, including a proximal end side flange portion connected to one end side of the web portion,
The pressing portion is provided on the other end side of the web portion, and is made of a plate-shaped member extending in a direction parallel to the wall surface,
The pressing portion is
A tip-side flange portion formed integrally with the angle member and connected to the other end side of the web portion;
The pressing member fixed to the tip end side flange portion, which is formed separately from the angle member,
The pressing plate is fixed to the tip side flange portion by a rivet or a screw inserted in a direction perpendicular to the tip side flange portion,
The tip of the rivet or the screw contacts the sound absorbing material,
Sound absorbing material mounting structure. The sound absorbing material mounting structure according to claim 1 or 2, wherein the pressing portion is formed of a front end side flange portion integrally formed with the angle member and connected to the other end side of the web portion. The base side flange portion extends from the web portion toward one side,
The sound absorbing material mounting structure according to claim 2 , wherein the front-end side flange portion extends from the web portion toward the other side opposite to the one side. The stud bar is a stud bolt having a thread groove formed on the shaft,
The angle member is coupled to the stud bolt by a nut screwed to the stud bolt,
The sound absorbing material mounting structure according to any one of claims 1 to 4 , wherein the pitch of the thread groove is equal to or less than the pitch of the fine thread defined in JIS B 0207 (1999). A portable container that can be transported by transportation equipment,
The portable container houses a noise source,
A portable container in which the sound absorbing material is attached to an inner wall panel of the portable container by the sound absorbing material attachment structure according to any one of claims 1 to 5 . The portable container houses a generator,
The portable container according to claim 6 , wherein the noise generation source is a power generation source for driving the generator. The portable container houses an exhaust heat recovery device for recovering exhaust heat exhausted from a power generation source,
The portable container according to claim 6 , wherein the noise generation source includes the exhaust heat recovery device. The portable container has a hood portion having a vent opening in the vertical direction,
The said angle member is a portable container of any one of Claim 7 or 8 in which at least one part of the said angle member extends along the said vertical direction in the said hood part. A sound absorbing material mounting method for mounting a sound absorbing material made of a fibrous material on a wall surface,
A welding step of stud welding a stud bar to the wall surface;
A step of fixing an angle member having a through hole through which the stud bar is inserted, to the stud bar in a state where the stud bar is inserted through the through hole, and fixing the stud bar to the wall surface;
A sound absorbing material mounting step of sandwiching the sound absorbing material between a holding portion provided on the angle member and the wall surface ,
The angle member is
A web portion extending in a direction intersecting with the wall surface,
The through hole is formed, including a proximal end side flange portion connected to one end side of the web portion,
The pressing portion is provided on the other end side of the web portion, and is made of a plate-shaped member extending in a direction parallel to the wall surface,
The pressing portion is formed of a pressing plate that is formed separately from the angle member and is fixed to the other end of the web portion.
The pressing plate is fixed to the web portion by a rivet or a screw inserted in a direction perpendicular to the web portion,
The tip of the rivet or the screw contacts the sound absorbing material,
How to install sound absorbing material. A sound absorbing material mounting method for mounting a sound absorbing material made of a fibrous material on a wall surface,
A welding step of stud welding a stud bar to the wall surface;
A step of fixing an angle member having a through hole through which the stud bar is inserted, to the stud bar in a state where the stud bar is inserted through the through hole, and fixing the wall surface;
A sound absorbing material mounting step of sandwiching the sound absorbing material between a holding portion provided on the angle member and the wall surface ,
The angle member is
A web portion extending in a direction intersecting with the wall surface,
The through hole is formed, including a proximal end side flange portion connected to one end side of the web portion,
The pressing portion is provided on the other end side of the web portion, and is made of a plate-shaped member extending in a direction parallel to the wall surface,
The pressing portion is
A tip-side flange portion formed integrally with the angle member and connected to the other end side of the web portion;
The pressing member fixed to the tip end side flange portion, which is formed separately from the angle member,
The pressing plate is fixed to the tip side flange portion by a rivet or a screw inserted in a direction perpendicular to the tip side flange portion,
The tip of the rivet or the screw contacts the sound absorbing material,
How to install sound absorbing material. The method for mounting the sound absorbing material according to claim 10 or 11 , further comprising a step of previously forming a punch hole at a position where the stud bar is welded on the wall surface, before the welding step.

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