JP2017187677A - Sound absorbing material mounting structure, sound absorbing material mounting method, and portable container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sound absorption material attachment structure capable of attaching a sound absorption material to an inner wall panel in a simple and swift method.SOLUTION: Disclosed is a sound absorption material attachment structure for attaching a sound absorption material to a wall face, which includes: a stud bar which is stud-welded to the wall face; an angle steel member having a through hole through which the stud bar is inserted, which is fixed to the wall face by being connected to the stud bar in a state the stud bar is inserted into the through hole; and a retaining part formed on the angle steel member for retaining the sound absorption material between the wall face and the same.SELECTED DRAWING: Figure 1

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, portable power generation units in which power generation facilities are accommodated in portable containers such as containers have attracted attention as power generation facilities that respond to emergency and emergency power demands and distributed power demands. Such a power generation unit is transported to the site by a transport device such as a trailer, in which a power generation facility such as a power generator or a power generation source (for example, an engine or a turbine) for driving the power generator is accommodated. Used. In addition to containers that contain power generation equipment, containers that contain peripheral equipment such as heat exchangers (for example, waste heat recovery boilers) that recover exhaust heat exhausted from power generation sources (exhaust heat) By using a collection container in combination, cogeneration (cogeneration) can be supported.

  In such a power generation container and exhaust heat recovery container, the noise generated from noise sources such as engines, turbines, and exhaust heat recovery boilers is not absorbed into the inner wall panel for the purpose of preventing the noise from leaking outside the container. The material 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 by welding (TIG welding, MIG welding, or MAG welding) over the entire length thereof, and this fixed reinforcing angle. 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 conventional mounting method described above, much work is required for the welding work of the angle member, and it is necessary to perform grinder polishing in order to remove burn marks caused by welding. there were. Moreover, since the angle member is welded to the inner wall panel over the entire length thereof, residual strain may occur in the inner wall panel. When residual strain occurs in the inner wall panel, a process for removing the strain is required, and further labor is required. Further, since the angle member cannot be removed, it is necessary to remove the inner wall panel itself when exchanging the sound absorbing material, resulting in poor exchangeability.

  Patent Document 1 discloses an invention relating to a sound absorbing material mounting structure for mounting a sound absorbing material in a vehicle interior of an automobile or the like. In the mounting structure of the sound absorbing material disclosed in Patent Document 1, a slit portion is formed in the sound absorbing material, and a longitudinal rib portion that can be inserted into the slit portion corresponding to the slit portion is formed on the back surface side of the interior panel member. The horizontal rib which can stand up and can lock a sound-absorbing material is provided in the front-end | tip part of this vertical rib. However, in the sound absorber mounting structure disclosed in Patent Document 1, it is necessary to stand up 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 its object is to attach a sound absorbing material to an inner wall panel in a simple and quick manner, An object of the present invention is to provide a method for attaching a sound absorbing material and a portable container provided with a structure for attaching the sound absorbing material.

(1) A sound absorbing material mounting structure according to an embodiment of the present invention is as follows:
A sound absorbing material mounting structure for attaching a sound absorbing material to 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, and an angle member fixed to the wall surface by being coupled to the stud bar in a state where the stud bar is inserted into the through hole;
A presser portion provided on the angle member and sandwiching the sound absorbing material between the wall surface.

  According to the embodiment described in (1) above, the angle member is fixed to the wall surface by coupling the angle member to the stud bar stud-welded to the wall surface. And a sound-absorbing material is attached to a wall surface by pinching a sound-absorbing material between the press part provided in the angle member fixed to this wall surface, and a wall surface.

  Therefore, compared with the conventional attachment method, it is not necessary to weld the angle member to the wall surface over the entire length thereof, so that the time required for welding can be greatly shortened. In addition, by adopting stud welding, the thermal effect due to welding can be minimized as compared with the conventional attachment method. For this reason, it is not necessary to remove the burn mark by welding or to remove the residual strain, and the working time can be further reduced. In addition, by adopting stud welding, there is no restriction on assembly personnel such as welding qualification as in the conventional mounting method.

  As a result, it is possible to attach the sound-absorbing material to the wall surface in a simpler and quicker manner than the conventional attachment method.

  Moreover, the wall surface and the angle member are not directly welded, but the angle member is fixed to a stud bar that is stud welded to the wall surface. For this reason, compared with the conventional attachment method, removal of an angle member becomes easy and workability | operativity at the time of replacing | exchanging a sound absorption material can be improved significantly.

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

  According to the embodiment described in the above (2), the angle member includes a web portion extending in a direction intersecting the wall surface, and a proximal end connected to one end side of the web portion in which a through hole is formed. A side flange portion. As such angle members, for example, H-shaped steel, I-shaped steel, L-shaped steel, Z-shaped steel, C-shaped (grooved) steel, and other commonly used shape steel, and bending from a flat plate by pressing, etc. Various formed angle members can be used. Furthermore, the angle member can also have a role as a reinforcing material, and a shape that can ensure the necessary strength can be selected as appropriate.

  Moreover, the said press part consists of a plate-shaped member provided in the other end side of the web part, and extended in the direction parallel to a wall surface. For this reason, a sound-absorbing material can be stably held between the presser portion and the wall surface.

  (3) In some embodiments, in the sound absorbing material mounting structure according to (2), the pressing portion is formed integrally 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 the front end side flange portion that is integrally formed with the angle member and connected to the other end side of the web portion as the press portion, the press portion is attached to the angle member. The number of parts can be reduced compared with the case where it comprises from a separate member.

  (4) In some embodiments, in the sound absorber mounting structure described in (2) above, the presser portion is formed separately from the angle member and is fixed to the other end side of the web portion. It consists of a plate.

  According to the embodiment described in the above (4), the presser plate and the wall surface are formed by adopting the presser plate attached to the other end side of the web part, which is formed separately from the angle member, as the presser part. Sound absorbing material can be held between the two. Moreover, workability | operativity at the time of fixing an angle member to a stud bar improves by fixing the angle member in the state where the presser plate is not attached to a stud bar. Further, by fixing the presser plate to the angle member in a state where the sound absorbing material is attached to the angle member, it is possible to provide an attachment structure that can flexibly cope with the thickness and size of the sound absorbing material.

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

  According to the embodiment described in the above (5), the presser portion is formed integrally with the angle member, and is formed separately from the front end side flange portion connected to the other end side of the web portion and the angle member. By adopting both of the presser plate fixed to the front end side flange portion, both the effects described in (3) and (4) above can be achieved, and the front end side flange portion and the presser plate By both, a sound-absorbing material can be clamped between the wall surfaces.

  (6) In some embodiments, in the sound absorbing material mounting structure according to (3) or (5), the proximal end flange portion extends from the web portion toward one side. The distal flange portion extends from the web portion toward the other side opposite to the one side.

  According to the embodiment described in (6) above, the proximal end flange portion and the distal end flange portion of the angle member extend from the web portion in opposite directions. Thereby, since a front end side flange part is not located on the extension line of the extension direction of a stud bar, when fixing an angle member to a stud bar, a front end side flange part does not become an obstacle of fixing work. Therefore, workability when fixing the angle member to the stud bar is excellent.

  (7) In some embodiments, in the sound absorbing material mounting structure according to the above (4), the pressing plate is fixed to the web portion by rivets or screws inserted in a direction perpendicular to the web portion. Is done. The tip of the rivet or screw comes into contact with the sound absorbing material.

  According to the embodiment described in (7) above, the holding 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. Therefore, it is possible to effectively prevent the sound absorbing material from shifting or dropping off.

  (8) In some embodiments, in the sound absorbing material mounting structure according to (5), the pressing plate has a distal end side formed by a rivet or a screw inserted in a direction perpendicular to the distal end flange portion. Fixed to the flange. The tip of the rivet or screw comes into contact with the sound absorbing material.

  According to the embodiment described in the above (8), the presser plate can be easily fixed to the front end side flange portion of the angle member by the rivet or the screw, and the front 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 dropping off.

(9) In some embodiments, in the attachment structure described in any one of (1) to (8) above, the stud bar is formed of a stud bolt in which a thread groove is formed in a shaft portion. The angle member is coupled to the stud bolt by a nut screwed to the stud bolt. And the pitch of the thread groove is JIS
It is the same as or less than the pitch of the fine thread defined 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. In addition, by setting the pitch of the thread groove to be the same as or less than the pitch of the fine screw, the stud bar and the angle member can be firmly coupled to prevent the fastening portion from being loosened due to vibration or the like. Can do.

(10) A portable container according to an embodiment of the present invention is:
A portable container that can be transported by a transport device,
The portable container contains a noise source,
The sound absorbing material is attached to the inner wall panel of the portable container by the sound absorbing material mounting structure described in any one of (1) to (9) above.

  According to the embodiment described in the above (10), in the portable container that can be transported by the transport equipment, the noise from the noise generation source housed in the portable container can be obtained by attaching the sound absorbing material to the inner wall panel. Can be prevented from leaking to the outside.

Moreover, the portable container needs to have a strength that can withstand various loads assumed. In particular, since the portable container is transported by a transportation device such as a trailer, it needs to have a strength that can withstand a vibration load during transportation.
In this regard, according to the embodiment described in (10) above, the angle member fixed to the inner wall panel via the stud bar plays a role as a reinforcing material, and therefore the rigidity of the inner wall panel can be increased.

  (11) In some embodiments, in the portable container described in (10) above, the portable container houses a generator. The noise generation source includes 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 generation equipment such as a power generator or a power generation source (for example, an engine or a turbine) for driving the power generator is accommodated. It is configured as a portable container. Thus, the portable container of this invention is used suitably also as a portable container of a portable power generation unit.

  (12) In some embodiments, in the portable container described in (10) above, the portable container accommodates an exhaust heat recovery device for recovering exhaust heat exhausted from a power generation source. The noise generation source includes an exhaust heat recovery device.

  According to the embodiment described in the above (12), 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 this embodiment is configured as a portable container of a portable heat recovery unit in which peripheral devices such as an exhaust heat recovery device are accommodated. Thus, the portable container of this invention is used suitably also as a portable container of a portable heat recovery unit.

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

In a portable container that houses a power generation source such as an engine or a turbine, or a waste heat recovery device such as a waste heat recovery boiler, it is necessary to introduce cooling air for cooling these devices from the outside.
According to the embodiment described in (13) above, by opening the vent in the vertical direction instead of in the horizontal direction, noise leaking from the vent is prevented from reverberating around the portable container. Moreover, in the inside of the hood part which has a vent hole opened in a perpendicular direction, air will flow along a perpendicular direction. Therefore, by extending at least a part of the angle member along the vertical direction in which the air flows, the angle member can be prevented from becoming resistant to the air flow.

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

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

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

  According to the embodiment described in (15) above, the punch hole is processed in advance at the position where the stud bar on the wall surface is welded. For this reason, when the stud bar is stud welded, its positioning and positioning are facilitated.

  According to at least one embodiment of the present invention, it is possible to provide a sound-absorbing material mounting structure, a sound-absorbing material mounting method, and a sound-absorbing material mounting structure capable of mounting the sound-absorbing material to the inner wall panel in a simple and quick manner. 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 the expanded sectional view showing the attachment structure of the sound-absorbing material concerning one embodiment of the present invention. It is the expanded sectional view showing the attachment structure of the sound-absorbing material concerning one embodiment of the present invention. It is the expanded sectional view showing the attachment structure of the sound-absorbing material concerning one embodiment of the present invention. It is the expanded sectional view showing the attachment structure of the 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 the top view which showed the portable container concerning one Embodiment of this invention. It is the schematic plan view which showed the portable container concerning one Embodiment of this invention. It is the flowchart which showed the attachment method of the sound-absorbing material concerning one Embodiment of this invention. It is the flowchart which showed the attachment method of the sound-absorbing material concerning one Embodiment of this invention.

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described in the embodiments or shown in the drawings are not intended to limit the scope of the present invention, but are merely illustrative examples. Absent.
For example, expressions expressing relative or absolute arrangements such as “in a certain direction”, “along a certain direction”, “parallel”, “orthogonal”, “center”, “concentric” or “coaxial” are strictly In addition to such an arrangement, it is also possible to represent a state of relative displacement with an angle or a distance such that tolerance or the same function can be obtained.
For example, an expression indicating that things such as “identical”, “equal” and “homogeneous” are in an equal state not only represents an exactly equal state, but also has a tolerance or a difference to the extent that the same function can be obtained. It also represents the existing state.
For example, expressions representing shapes such as quadrangular shapes and cylindrical shapes represent not only geometrically strict shapes such as quadrangular shapes and cylindrical shapes, but also irregularities and chamfers as long as the same effects can be obtained. A shape including a part or the like is also expressed.
On the other hand, the expressions “comprising”, “comprising”, “comprising”, “including”, or “having” one constituent element are not exclusive expressions for excluding the existence of the other constituent elements.
In the following description, the same components may be denoted by the same reference numerals and detailed description thereof may be omitted.

  FIG. 1 is a schematic view showing a sound absorbing material mounting structure according to an embodiment of the present invention, in which (a) is a plan view, (b) is a front view, and (c) is a side view. FIG. 2 is an enlarged schematic view showing a cross section of the sound absorbing material according to the embodiment of the present invention. FIG. 3 is a view showing a stud bar (stud bolt) according to an embodiment of the present invention. 4 to 7 are enlarged cross-sectional views showing a sound absorbing material mounting structure according to an 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 attached to a wall surface 2 as shown in FIG. And the stud bolt 6, the angle member 8, and the pressing part 10 are provided.

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

  The sound absorbing material 4 is a member for absorbing noise from a noise generating source to be 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 a cotton-like glass wool 4a with a glass cloth 4b. In some embodiments, the sound absorbing material 4 may not have 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 portion of the shaft portion 6A and having a larger diameter than the shaft portion 6A, Consists of. The front end surface 6b of the head 6B has a taper shape inclined toward the shaft portion 6A from the central portion toward the outer peripheral edge, and a convex portion 6c is formed at the central position. Then, as shown in FIG. 3B, the head 6 </ b> B is fixed to the wall surface 2 by stud welding in a state where the punch hole 2 a in which the convex portion 6 c is formed in the wall surface 2 is inserted. The front end surface 6b is attached to the wall surface 2 by melting and smoothing the front end surface 6b by stud welding. 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 8 a through which the shaft portion 6 </ b> A of the stud bar 6 is inserted. And it is fixed to the wall surface 2 by being combined with the stud bar 6 in a state where the stud bar 6 is inserted through the through hole 8a.

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

  According to the sound absorber mounting structure 1 according to the embodiment of the present invention, the angle member 8 is fixed to the wall surface 2 by the angle member 8 being coupled to the stud bar 6 that is stud welded to the wall surface 2. Is done. The sound absorbing material 4 is attached to the wall surface 2 by sandwiching the sound absorbing material 4 between the presser portion 10 provided on the angle member 8 fixed to the wall surface 2 and the wall surface 2.

  Therefore, compared with the conventional attachment method, since it is not necessary to weld the angle member 8 to the wall surface 2 over the whole length, the time required for welding can be reduced significantly. In addition, by adopting stud welding, the thermal effect due to welding can be minimized as compared with the conventional attachment method. For this reason, it is not necessary to remove the burn mark by welding or to remove the residual strain, and the working time can be further reduced. In addition, by adopting stud welding, there is no restriction on assembly personnel such as welding qualification as in the conventional mounting method.

  Thus, it is possible to attach the sound absorbing material 4 to the wall surface 2 by a simple and quick method as compared with the conventional attaching method.

  In addition, the wall surface 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. For this reason, compared with the conventional attachment method, the removal of the angle member 8 becomes easy and the workability | operativity at the time of replacing | exchanging the sound-absorbing material 4 can be improved significantly.

  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 depending on the place where the portable container 100 is used. For example, when the portable container 100 is used in a place where noise regulations are more stringent, 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 exchanging 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 includes a web portion 8 </ b> A extending in a direction intersecting the wall surface 2 and a through hole 8 a. A proximal end flange portion 8B connected to one end side of the web portion 8A. And the press part 10 consists of a plate-shaped member provided in the other end side of the web part 8A, and extended in the direction parallel to the wall surface 2.

  In the illustrated embodiment, the web portion 8 </ b> A extends in a direction perpendicular to the wall surface 2. That is, the presser portion 10 extends in a direction perpendicular to the web portion 8A. Further, the base end side flange portion 8 </ b> B extends in a direction parallel to the wall surface 2. Thereby, since the wall surface 2 and the base end side flange portion 8 </ b> B are in surface contact, the angle member 8 is firmly fixed to the wall surface 2.

  Further, in the illustrated embodiment, the stud bar 8 protrudes in a direction away from the wall surface 2 from the back surface (surface opposite to the wall surface 2) of the base end side flange portion 8B. And the front-end | tip part is contact | abutting with the sound-absorbing material 4 so that the inside of the sound-absorbing material 4 may be dented (so that the surface of the sound-absorbing material 4 may be dented). Thereby, the shift | offset | difference of the sound-absorbing material 4, a drop-off, etc. can be prevented effectively.

  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. A proximal end flange portion 8B. As such an angle member 8, for example, various commonly used angle members 8 such as H-shaped steel, I-shaped steel, L-shaped steel, Z-shaped steel, and C-shaped (grooved) steel can be used. .

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

  In the embodiment shown in FIG. 5, the distal end side flange portion 8C extends in a direction opposite to the direction in which the proximal end side flange portion 8B extends. And the angle member 8 is formed in the cross-section Z shape. According to the angle member 8 having such a Z-shaped cross section, since the proximal end side flange portion 8B and the distal end side flange portion 8C extend in directions opposite to each other, they are adjacent to each other by one angle member 8. Two sound absorbing materials 4 </ b> A and 4 </ b> B can be attached to the wall surface 2.

  On the other hand, in the embodiment shown in FIG. 6, the distal end side flange portion 8C extends in a direction opposite to the direction in which the proximal end side flange portion 8B extends. And the angle member 8 is formed in the cross-section C shape (groove shape). According to the angle member 8 having such a C-shaped cross section, since the proximal end flange portion 8B and the distal end flange portion 8C extend in the same direction, the proximal end flange portion 8B and the distal end By holding the sound absorbing material 4 between the side flange portion 8C, it is difficult for the sound absorbing material 4 to be displaced or dropped off.

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

  In some embodiments, as shown in FIG. 7, the above-described presser portion 10 includes a presser plate 11 </ b> B formed separately from the angle member 8 and fixed to the other end side of the web portion 8 </ b> A.

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

  Further, in the illustrated embodiment, the presser 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. It consists of a plate-shaped L-shaped member which has fixed part 11Bb extended. The extending part 11Ba extends in the same direction as the proximal end flange part 8B. And fixing part 11Bb is being fixed to the other end side of web part 8A.

  According to such an embodiment, the presser plate 11B is adopted by adopting the presser plate 11B attached to the other end side of the web part 8A, which is formed separately from the angle member 8, as the presser part 10 described above. And the wall surface 2 can sandwich the sound absorbing material 4. Moreover, the workability | operativity at the time of fixing the angle member 8 to the stud bar 6 improves by fixing to the stud bar 6 the angle member 8 in the state in which the pressing board 11B is not attached. In addition, by fixing the presser 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 an attachment structure that can flexibly cope with the sound absorbing material 4 in thickness and size. .

  In some embodiments, as shown in FIG. 4, the presser portion 10 described above is formed integrally with the angle member 8, and includes a front end side flange portion 8 </ b> C connected to the other end side of the web portion 8 </ b> A, The presser plate 11A is formed separately from the member 8 and is fixed to the front end flange portion 8C.

  In the illustrated embodiment, the distal flange portion 8C extends in the direction opposite to the direction in which the proximal flange portion 8B extends. And the angle member 8 is formed in the cross-section Z shape.

  In the illustrated embodiment, the presser plate 11 </ b> A is made of a flat plate member extending in a direction parallel to the wall surface 2. The presser plate 11A is fixed to the distal end flange portion 8C and extends in a direction opposite to the direction in which the distal end flange portion 8C extends.

  According to such an embodiment, the presser portion 10 is formed separately from the angle member 8 and the distal end flange portion 8C that is integrally formed with the angle member 8 and connected to the other end side of the web portion 8A. Further, by adopting both the holding plate 11A fixed to the front end side flange portion 8C, the sound absorbing material 4 is sandwiched between the wall surface 2 by both the front end side flange portion 8C and the holding plate 11A. Can do.

  Further, since the presser plate 11A extends in the direction opposite to the direction in which the front end side flange portion 8C extends, it is adjacent to both the front end side flange portion 8C and the presser plate 11A with the angle member 8 interposed therebetween. The two sound absorbing materials 4A and 4B can be held together.

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

  According to such an embodiment, the proximal end side flange portion 8B and the distal end side flange portion 8C of the angle member 8 extend from the web portion 8A in opposite directions. Thereby, since the front end side flange portion 8C is not positioned on the extension line in the extending direction of the stud bar 6, the front end side flange portion 8C does not become an obstacle to the fixing work when the angle member 8 is fixed to the stud bar 6. . Therefore, workability when fixing the angle member 8 to the stud bar 6 is excellent.

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

  In the illustrated embodiment, the rivet 12 is inserted through the through-hole 8Ah formed in the tip end side of the web portion 8A and the through-hole 11Bbh formed in the fixing portion 11Bb of the presser plate 11B, and the head is caulked. As a result, the presser plate 11B is fixed to the web portion 8A. And the front-end | tip part of the rivet 12 is contact | abutted with the sound-absorbing material 4 so that it may squeeze inside the sound-absorbing material 4 (so that the surface of the sound-absorbing material 4 may be dented).

  It should be noted that a screw may be used in place of the rivet 12 in a part where the holding plate 11A needs to be frequently removed.

  According to such an embodiment, the holding 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 being displaced or dropped off.

  In some embodiments, as shown in FIG. 4, the above-described holding plate 11A is fixed to the distal end flange portion 8C by a rivet 12 inserted in a direction perpendicular to the distal end flange portion 8C. . The tip of the rivet 12 is in contact with the sound absorbing material 4.

  In the illustrated embodiment, the rivet 12 is inserted into the through-hole 8Ch formed in the front end flange portion 8C and the through-hole 11Ah formed in the presser plate 11A, and the head is crimped, The plate 11A is fixed to the front end side flange portion 8C. And the front-end | tip part of the rivet 12 is contact | abutted with the sound-absorbing material 4 so that it may squeeze inside the sound-absorbing material 4 (so that the surface of the sound-absorbing material 4 may be dented).

  According to such an embodiment, the holding plate 11A can be easily fixed to the front end side flange portion 8C of the angle member 8 by the rivet 12, and the front end of the rivet 12 is brought into contact with the sound absorbing material 4. Therefore, 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 above-described stud bar 6 includes a stud bolt 6 in which a thread groove 6 a is formed in the shaft portion 6 </ b> A. As shown in FIGS. 4 to 7, the angle member 8 is coupled to the stud bolt 6 by a nut 7 screwed to the stud bolt 6. The pitch t of the thread groove 6a is JIS
It is the same as or less than the pitch of the fine thread defined in B 0207 (1999).

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

  FIG. 8 is a side view showing a portable container according to an 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. And the portable container 100 accommodates the noise generating 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 mounting structure 1 according to the above-described embodiment.

  In the illustrated embodiment, the portable container 100 is configured by coupling an intake 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 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-pressure 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 transport equipment, the sound absorbing material 4 is attached to the inner wall panel 2A, so that the noise from the noise generating source 102 accommodated in the portable container 100 is reduced. It is possible to prevent noise from leaking to the outside.

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

  Although not shown, as the noise generation source 102, for example, a steam turbine, a gas turbine, a fuel cell, or the like may be used as a 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 a portable container 100A of a portable power generation unit in which power generators such as a power generator 103 and a power generation source for driving the power generator 103 are accommodated. Is 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.

Moreover, the portable container 100 needs to have the intensity | strength which can endure various loads assumed. In particular, the portable container 100 is transported by, for example, a transportation device such as a trailer, and therefore needs to have a strength that can withstand vibration load during transportation.
In this regard, according to the above-described embodiment, the angle member 8 fixed to the inner wall panel 2A via the stud bar 6 plays a role as a reinforcing material, 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, the angle member 8 needs to be fixed to the inner wall panel 2A with a predetermined length or more. Preferably, the angle member 8 is The inner wall panel 2A may extend from one end edge to the other end edge over the entire width (total height) of the inner wall panel 2A.

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 includes 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 above-described portable power generation. By using together with the portable container 100A of the unit, it is possible to cope with cogeneration (cogeneration).

  In the illustrated embodiment, the portable container 100 includes a standard-sized container body 100Bb (for example, a 20f container). The exhaust heat recovery device 120 includes an exhaust heat recovery boiler 120A. The exhaust heat recovery boiler 120A introduces exhaust gas from a power generation source disposed outside the portable container 100 such as the engine 102A described above, through the exhaust gas inlet 120a. And it is comprised so that a vapor | steam may be produced | generated from the exhaust heat of the introduce | transduced exhaust gas.

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

  According to such an embodiment, the portable container 100 houses the exhaust heat recovery device 120, and the noise generation source is an exhaust heat recovery device 120 (for example, for recovering exhaust heat exhausted from the power generation source). It consists of an exhaust heat recovery boiler 120A). That is, the portable container 100 of this embodiment is configured as a portable container 100B of a portable heat recovery unit in which peripheral devices such as the exhaust heat recovery device 120 are accommodated. Thus, the portable container 100 of this invention is used suitably also as the portable container 100B of a portable heat recovery unit.

  In some embodiments, as shown in FIG. 8, the portable container 100 described above includes a hood portion 101 having a vent 101 </ b> O that opens in a vertical direction (direction in which gravity acts). The angle member 8 extends at least part of the angle member 8 along 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. In the intake side hood portion 101A, the intake side vent 101AO is open vertically downward. The direction of the air flowing vertically upward from the intake-side vent 101AO is turned in the intake-side hood 101A, and flows vertically downward into the container body 100Ab. And it flows along the horizontal direction inside the container main body 100Ab.

  On the other hand, in the exhaust side hood portion 101B, the exhaust side vent 101BO opens vertically upward. The angle member 8 extends along the vertical direction inside the intake side hood portion 101A and the exhaust side hood portion 101B and is fixed to the inner wall panel 2A. The air that flows in the container body 100Ab along the horizontal direction 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 vent 101O in the vertical direction instead of the horizontal direction, it is possible to prevent noise transmitted from the vent 101O from reverberating around the portable container 100. In addition, air flows along the vertical direction inside the hood 101 having the vent 101O that opens in the vertical direction. Therefore, by extending the angle member 8 along the vertical direction in which air flows, the angle member 8 is disposed along the flow direction of air flow, and the angle member 8 becomes resistant to the air flow. This can be suppressed.

FIG. 11 and FIG. 12 are flowcharts showing a method for attaching a sound absorbing material according to an embodiment of the present invention.
The method for attaching the sound absorbing material according to the embodiment of the present invention is a sound absorbing material attaching method for attaching the sound absorbing material 4 to the 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 into the through hole 8a. The stud bar 6 is coupled to the stud bar 6 in a state where the stud bar 6 is inserted through and fixed to the wall surface 2 (angle agent fixing step S3), the presser portion 10 provided in the angle member 8, and the wall surface 2. A step of sandwiching the sound absorbing material 4 (sound absorbing material mounting step S4).

  Further, the embodiment shown in FIG. 12 is a flowchart corresponding to a structure in which the presser portion 10 is made up of presser plates 11A and 11B that are separate from the angle member 8, as shown in FIGS. The above-described sound absorbing material mounting step S4 includes the sound absorbing material positioning step (S41) for positioning the sound absorbing material 4 with respect to the angle member 8 fixed to the wall surface 2, and the state in which the sound absorbing material 4 is positioned. A step of holding the sound absorbing material 4 by fixing the press plates 11A and 11B to the member 8 (press plate fixing step S42) 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, similar to the sound absorbing material mounting structure 1 described above.

  In some embodiments, as shown in FIG. 11, the punch hole 2a is further processed in advance at the position where the stud bar 6 is welded on the wall surface 2 before the above-described welding step S1.

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

  According to such an embodiment, the punch hole 2a is processed in advance at a position on the wall surface 2 where the stud bar 6 is welded. For this reason, when the stud bar 6 is stud welded, its positioning and positioning are facilitated.

  As mentioned above, although the preferable form of this invention was demonstrated, this invention is not limited to said form, A various change in the range which does not deviate from the objective of this invention is possible.

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 portion 6B Head portion 6a Thread groove 6b Tip surface 6c Protrusion portion 7 Nut 8 Angle member 8A Web portion 8Ah Through hole 8B Base end flange portion 8C Tip end flange portion 8Ch Through hole 10 Presser portion 11A Presser plate 11A Presser plate 11Ah Through hole 11B Holding plate 11Ba Extension part 11Bb Fixing part 11Bbh Through hole 12 Rivet 100, 100A, 100B Portable container 100Ab, 100Bb Container body 101 Hood part 101A Intake side hood part 101B Exhaust side hood part 101O Vent hole 101AO Intake side ventilation Port 101BO Exhaust side vent 102 Noise generating 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 Connecting pipe 128 Damper

Claims (15)

A sound absorbing material mounting structure for attaching a sound absorbing material to 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, and an angle member fixed to the wall surface by being coupled to the stud bar in a state where the stud bar is inserted into the through hole;
A sound absorbing material mounting structure comprising: a pressing portion provided on the angle member and sandwiching the sound absorbing material with the wall surface. The angle member is
A web portion extending in a direction intersecting the wall surface;
A proximal flange portion formed on the through hole and connected to one end side of the web portion;
2. The sound absorbing material mounting structure according to claim 1, wherein the pressing portion is formed of a plate-like member provided on the other end side of the web portion and extending in a direction parallel to the wall surface.   The sound-absorbing-material mounting structure according to claim 2, wherein the pressing portion includes a front-end flange portion that is integrally formed with the angle member and is connected to the other end side of the web portion.   The structure for mounting a sound absorbing material according to claim 2, wherein the pressing portion is formed of a pressing plate formed separately from the angle member and fixed to the other end side of the web portion. The presser part is
A flange portion formed integrally with the angle member and connected to the other end side of the web portion; and
The sound absorbing material mounting structure according to claim 2, comprising: a presser plate formed separately from the angle member and fixed to the front end side flange portion. The proximal end flange portion extends from the web portion toward one side,
The sound absorbing material mounting structure according to claim 3 or 5, wherein the front end flange portion extends from the web portion toward the other side opposite to the one side. The presser plate is fixed to the web part by rivets or screws inserted in a direction perpendicular to the web part,
The sound absorbing material mounting structure according to claim 4, wherein a tip of the rivet or the screw comes into contact with the sound absorbing material. The presser plate is fixed to the front end side flange portion by rivets or screws inserted in a direction perpendicular to the front end side flange portion,
The sound absorbing material mounting structure according to claim 5, wherein a tip of the rivet or the screw abuts on the sound absorbing material. The stud bar is composed of a stud bolt in which a thread groove is formed in a shaft portion,
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 8, wherein a pitch of the thread groove is equal to or less than a pitch of a fine screw defined in JIS B 0207 (1999). A portable container that can be transported by a transport device,
The portable container contains a noise source,
The portable container by which the said sound-absorbing material is attached to the inner wall panel of the said portable container by the sound-absorbing-material attachment structure of any one of Claim 1 to 9. The portable container contains a generator,
The portable container according to claim 10, wherein the noise generation source is a power generation source for driving the generator. The portable container accommodates an exhaust heat recovery device for recovering exhaust heat exhausted from a power generation source,
The portable container according to claim 10, wherein the noise generation source includes the exhaust heat recovery device. The portable container has a hood portion having a vent opening in a vertical direction,
13. The portable container according to claim 11, wherein at least a part of the angle member extends along the vertical direction in the hood portion. A sound absorbing material mounting method for attaching a sound absorbing material to a wall surface,
Welding step for stud welding a stud bar to the wall surface;
An angle member having a through-hole through which the stud bar is inserted, and the stud bar is coupled to the stud bar in a state where the stud bar is inserted into the through-hole, and fixed to the wall surface;
A sound absorbing material mounting method, comprising: a sound absorbing material mounting step for sandwiching the sound absorbing material between a pressing portion provided in the angle member and the wall surface.   The method for attaching a sound absorbing material according to claim 14, further comprising a step of machining a punch hole in advance at a position where the stud bar on the wall surface is welded before the welding step.

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