JP4873972B2 - Pipe fitting or pipe, pipe fitting structure or pipe structure and drainage pipe structure - Google Patents

Description

The present invention, which has a refractory, sound insulation and vibration damping properties with excellent sound insulation antivibration sea pipe joint or tube wound bets, pipe joint or tube was disposed on the partition through portions tube joint structure or tube structure Further, the present invention relates to a drainage stack structure in which a sound insulation and vibration isolating sheet is wound.

  Conventionally, as shown in FIG. 7, the drainage pipe 10 of an apartment house, a hotel, an office building or the like is arranged in a partition through-hole of a building, that is, a through-hole k formed in a floor slab F or a partition wall W. The pipe joints 11 and 11 ′ provided, the drainage stack 12 connected to the upper connection part 11 a and the lower connection part 11 b of the pipe joint 11, and the side connected to the side branch pipe connection part 11 c of the pipe joint 11. The branch pipe 13 is mainly composed of. And the sewage and miscellaneous wastewater which generate | occur | produce from the residential area of each floor are collected by the pipe joint 11 through the side branch pipe 13 connected to the drain outlet, and merge with the sewage from the upper floor, etc. in the drainage stack 12 Is flowed substantially vertically along the tube axis, and is discharged to the public sewer in the lowest layer.

  In this case, the pipe joint 11 and the drainage stack 12 are provided with swirl vanes 11x (see FIG. 3) on the inner peripheral surface thereof, and the sewage in the drainage stack 12 is swirled along the swirl vanes 11x. The air pressure fluctuation in the pipe is suppressed.

  Here, after the pipe joints 11 and 11 'and the drainage stack 12 are inserted into the through hole k formed in the floor slab F or the like, the mortar m is inserted into the gap between the outer peripheral surface and the inner peripheral surface of the through hole k. Is fixed to the floor slab F or the like by backfilling the through hole k.

  In such a drainage pipe 10, when sewage or the like flows down as a swirling flow, noise from the pipe joint 11 or the drainage stack 12 propagates in the air and enters the residential area, and the pipe joint 11 or the drainage stand. Noise accompanying the vibration of the pipe 12 propagates through the floor slab F and enters the residential area. Drainage noise consisting of these airborne sounds and solid-borne sounds is becoming increasingly important in recent years when comfort in the indoor environment and living space is required, and there are various proposals for reducing this kind of wastewater noise. Has been made.

For example, it is widely performed to prevent vibration by winding a rock wool sheet around the pipe joint and the outer peripheral surface of the pipe inserted into the partition penetration part of the building, or filling the partition penetration part with rock wool, Patent Document 1 describes that an anti-vibration material made of an elastic material is attached to the outer peripheral surface of a pipe joint disposed in a partition penetration portion of a building, and the partition penetration portion is backfilled with mortar. In Patent Document 2, a weighted body such as lead or lead-based alloy is provided on the outer peripheral surface of the pipe joint, and an elastic body is provided on the outer periphery, and these weighted body and elastic body are fastened and fixed by a tightening body. In addition, it is described that the partition through portion is backfilled with mortar.
JP-A-6-306904 Japanese Patent Laid-Open No. 10-311489

  However, as a measure against vibration and sound absorption, pipes and pipes wrapped with rock wool sheet or elastic material made of anti-vibration material, or those filled with rock wool in the partition penetration part can attenuate sound and vibration. , Can not prevent the transmission to the outside. For example, noise generated when flowing down a drainage stack or pipe joint passes through rock wool or an elastic material made of elastic material and cannot necessarily reduce drainage noise.

  In the case of taking vibration-proof and sound-absorbing measures with rock wool, complicated work is required on site for fire-proof measures for the partition through portions, for example, prevention of rock wool falling off, which increases costs.

  In the case of Patent Document 2, a weight body with a large specific gravity is attached to a pipe joint, and the vibration band is reduced by increasing the weight to suppress drainage noise. However, the work of winding a heavy weight body is easy. is not. In particular, wrapping over the entire length of the drainage stack causes a large load to act on the drainage stack and imposes a heavy burden on the operator, and cannot be employed. For this reason, another measure against noise must be taken for the drainage stack, and the work becomes inevitable.

The present invention has been made in view of such problems , and provides a pipe joint or a tube wrapped with a sound and vibration proof sheet that can reliably reduce noise and vibration while ensuring fire resistance. Pipe joint structure or pipe structure that can reliably reduce air propagation sound and solid propagation sound while ensuring the fire resistance performance of the building's partition penetration, and also the air propagation sound while ensuring fire resistance performance It is an object of the present invention to provide a drainage stack structure that can reliably reduce the above.

The pipe joint or pipe of the present invention includes an outer layer made of a resin sheet provided with a metal coating, an intermediate layer made of a high specific gravity inorganic fiber sheet laminated on the outer resin sheet side, and an intermediate layer made of a low A soundproof and vibration-proof sheet composed of an inner layer made of an inorganic fiber sheet having a specific gravity is inserted into a partition penetration portion of a building, and the partition penetration portion of the pipe joint or pipe constituting the drainage pipe of the building those characterized that you have wrapped a portion corresponding to.

  In the present invention, as the resin sheet, a sheet made of vinyl chloride, polyethylene, polypropylene, polyethylene terephthalate, or the like can be used, and is not particularly limited.

  Examples of the metal include aluminum and copper, and are not particularly limited. Examples of the film forming method include vapor deposition and coating.

  The thickness of the resin sheet provided with the metal coating is preferably 0.05 mm to 1.0 mm, but is not particularly limited as long as waterproofness and fire resistance for a certain period of time are ensured.

  In the present invention, examples of the inorganic fiber sheet include glass wool, rock lace, and steel wool.

  The low specific gravity inorganic fiber sheet refers to an inorganic fiber sheet having a specific gravity of 0.1 to 0.4. If the specific gravity is less than 0.1, it is difficult to maintain the shape such as thickness when the sheet is wound, and sufficient sound absorbing performance cannot be obtained. Even if the specific gravity exceeds 0.4, the sound absorption performance cannot be improved although the economic efficiency is lowered.

  The thickness of the low specific gravity inorganic fiber sheet is preferably 3.0 to 25.0 mm. If the thickness is less than 3.0 mm, sufficient sound absorption performance cannot be obtained. When the thickness exceeds 25.0 mm, workability such as bending is deteriorated.

  The high specific gravity inorganic fiber sheet refers to an inorganic fiber sheet having a specific gravity of 0.5 to 1.6. If the specific gravity is less than 0.5, sufficient sound insulation performance cannot be obtained. Moreover, even if specific gravity exceeds 1.6, it becomes difficult to ensure the economical efficiency with respect to sound insulation performance improvement. A higher specific gravity is preferable because the sound insulation can be improved, but the upper limit is preferably 1.6 or less in order to ensure the economy for improving the sound insulation performance.

  The thickness of the high specific gravity inorganic fiber sheet is preferably 1.0 to 5.0 mm. If the thickness is less than 1.0 mm, sufficient sound insulation performance cannot be obtained. When the thickness exceeds 5.0 mm, workability such as bending is deteriorated.

  In this case, an inorganic filler having a high specific gravity such as iron powder, barium sulfate, or aluminum hydroxide may be added to improve sound insulation.

  According to the present invention, since the sound insulation and vibration isolating sheet is wound around the pipe joint or the pipe, the sound and vibration when the sewage flows down the pipe joint or the pipe is low specific gravity which is the inner layer of the sound insulation vibration prevention sheet. The inorganic fiber sheet functions as a sound absorbing layer and is absorbed and attenuated without reflection. And the sound and vibration which attenuate | damped by the inner layer and reached | attained the intermediate | middle layer are suppressed that the sheet | seat made from an inorganic fiber of high specific gravity which is an intermediate | middle layer functions as a sound insulation layer, and permeate | transmits outside. Moreover, the resin sheet provided with the metal coating as the outer layer functions as a fireproof layer and prevents combustion. Furthermore, the work at the site can be reduced by winding the sound and vibration isolating sheet around the pipe joint or pipe in a factory or the like.

  As a result, it is possible to reduce noise and vibration when sewage or the like flows down the pipe joint or pipe while suppressing permeation to the outside, and to ensure fire resistance. Therefore, it is possible to provide a pipe joint and a pipe suitable for a partition through portion of a building.

The pipe joint structure or pipe structure of the present invention is characterized in that the pipe joint or pipe according to claim 1 is inserted into a partition penetration portion of a building and the partition penetration portion is backfilled with mortar. To do.

  According to the present invention, a pipe joint or a pipe around which a sound insulation and vibration isolating sheet is wound is disposed in a partition penetrating portion of a building and is fixed via a mortar.

  As a result, it is possible to ensure the fire resistance performance of the building's compartment penetration, and to suppress external transmission of sound and vibration caused by pipe joints and sewage flowing down the pipe. However, it can be reduced. For this reason, it is possible to reduce the air-borne sound that propagates through the sound generated when sewage or the like flows down the pipe joint or pipe disposed in the partition through-hole, or the solid-borne sound that propagates through the floor slab or the like. .

The drainage stack structure of the present invention has an outer layer made of a resin sheet provided with a metal coating, an intermediate layer made of a high specific gravity inorganic fiber sheet laminated on the outer resin sheet side, and an intermediate layer made of a low A soundproof and vibration-insulating sheet composed of an inner layer made of an inorganic fiber sheet having a specific gravity is wound over the entire length of a pipe joint constituting a drainage pipe of a building and a drainage stack connected to the pipe joint. It is a characteristic

  According to the present invention, sound and vibration due to drainage flowing down the drainage standpipe and the pipe joint of the drainage pipe in the building are wound by the sound insulation and vibration isolating sheet being wound over the entire length of the drainage standpipe and the pipe joint. A sheet made of inorganic fiber having a low specific gravity, which is the inner layer of the vibration-proof sheet, functions as a sound absorbing layer and is attenuated. And the sound and vibration which attenuate | damped by the inner layer and arrived at the intermediate | middle layer function as a sound insulation layer by the high specific gravity inorganic fiber sheet | seat which is an intermediate | middle layer, and are transmitted to the exterior. Moreover, the resin film provided with the metal coating as the outer layer functions as a fireproof layer and prevents combustion.

  As a result, the fireproof performance of the drainage stack and pipe joint can be secured, and the sound and vibration caused by sewage flowing down the drainage stack and pipe joint can be reduced while suppressing permeation to the outside. it can. For this reason, the air propagation sound which the sound which generate | occur | produces when dirty water etc. flow down a pipe joint or a drainage stack can be reduced.

According to the pipe joint or pipe of the present invention, sound and vibration can be reliably reduced while ensuring fire resistance.

Moreover , according to the pipe joint structure or the pipe structure of the present invention, it is possible to reliably reduce the air propagation sound and the solid propagation sound while ensuring the fire resistance performance of the partition through portion of the building.

Furthermore, according to the drainage vertical pipe structure of the present invention, while ensuring the fire resistance, it is possible to reliably reduce the air-borne sound.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows an embodiment of a sound and vibration isolating sheet 1 wound around the pipe joint of the present invention.

  The sound insulation and vibration isolating sheet 1 is composed of an outer layer 2, an intermediate layer 3 laminated on the outer layer 2, and an inner layer 4 laminated on the intermediate layer 3, and has a thickness of 15 mm. The outer layer 2 is a polyethylene film 22 formed by vapor-depositing a metal coating 21, for example, aluminum, and has a thickness of 0.5 mm. The intermediate layer 3 is a high specific gravity inorganic fiber sheet, specifically, a rock wool sheet having a specific gravity of 0.7, and has a thickness of 2.5 mm. Furthermore, the inner layer 4 is a low specific gravity inorganic fiber sheet, specifically, a rock wool sheet having a specific gravity of 0.2, and has a thickness of 12.0 mm.

  In such a sound and vibration isolating sheet 1, the outer layer 2 functions as a fireproof layer, and fireproof performance can be ensured. Further, the inner layer 4 functions as a sound absorbing layer, and the inner layer 4 can attenuate sound and vibration. Furthermore, the intermediate layer 3 functions as a sound insulation layer and can insulate the sound and vibration attenuated by the inner layer 4 so as not to transmit to the outside. As a result, sound and vibration can be reliably reduced while suppressing transmission to the outside, and fire resistance can be ensured.

  Such a sound insulation and vibration isolating sheet 1 can be suitably used as a sound insulation and vibration prevention measure for a partition through portion of a building. Hereinafter, the point which winds the sound-insulation vibration-proof sheet | seat 1 to the pipe joint arrange | positioned at the division penetration part of a building is demonstrated.

  Here, as the pipe joint, in FIG. 7, the pipe joint 11 to which the horizontal branch pipe 13 is connected and the drainage stack 12 is connected is illustrated, but other pipe joints may be used. Not limited to the drainage standpipe.

  First, the pipe joint 11 is prepared, and over the entire circumference of the outer peripheral surface of the tapered cylindrical portion 111, which is a portion that is inserted into a through-hole k formed in the floor slab F, specifically, a partition through portion of a building. The sound and vibration isolating sheet 1 is wound with the outer layer 2 as an outer surface (see FIG. 2A). And the adhesive tape 5 is affixed between the outer peripheral surface of the taper cylinder part 111 of the pipe joint 11, and the upper end edge part and lower end edge part of the sound-insulation vibration-proof sheet 1, and the sound-insulation vibration-proof sheet with respect to the pipe joint 11 1 is mounted (see FIG. 2B).

  In this case, the adhesive tape 5 preferably has heat resistance, and for example, an aluminum glass cloth tape can be suitably used.

  As described above, by mounting the sound insulation and vibration isolating sheet 1 on the pipe joint 11 in advance in a factory or the like, it is possible to reduce the work at the site and to ensure a stable supply with quality.

  In this way, the pipe joint 11 around which the sound and vibration isolating sheet 1 is wound is carried into the site and inserted into the through hole k of the floor slab F (see FIG. 3A).

  At this time, the sound insulation and vibration isolating sheet 1 is attached to at least the lower half outer peripheral surface of the side branch pipe connection portion 11c of the pipe joint 11 so that the floor slab F and the side branch pipe connection portion 11c of the pipe joint 11 do not directly contact each other. It is preferable to make it.

  When the pipe joint 11 is inserted into the through hole k of the floor slab F, the gap between the outer peripheral surface of the pipe joint 11 and the inner peripheral surface of the through hole k is filled with mortar m, and the through hole k is backfilled. The pipe joint 11 is fixed to the through hole k of the floor slab F (see FIG. 3B).

  Next, the drainage stack 12 may be connected to the upper opening connection portion 11a and the lower opening connection portion 11b of the pipe joint 11, respectively, while the side branch pipe 13 may be connected to the side branch connection portion 11c.

  Although not shown in detail, when the drainage stack 12 is inserted into the through hole k formed in the floor slab F, the sound insulation and vibration isolating sheet 1 is wound around the portion inserted through the through hole k. In the case where the partition penetrating part is a through hole of the partition wall, similarly, the sound and vibration isolating sheet 1 is wound around a part of the pipe inserted through the through hole corresponding to the through hole. Furthermore, as for the pipe joint 11 and the drainage stack 12 that are not arranged in the partition penetrating portion, the sound insulation and vibration isolating sheet 1 may be wound over the entire length as will be described later (see FIG. 6).

  In addition, the soundproofing and vibration isolating sheet 1 disposed in such a partition penetrating portion is verified by a test conforming to the fire resistance performance test of the Fire and Disaster Management Agency Notification No. 4 of 2005 to provide the fireproof performance and smokeproof performance. It has been confirmed that there is no problem with heat insulation performance.

  Next, vibration and noise were evaluated in the drainage pipe including the pipe joint arranged in the partition through portion of the building.

  As shown in FIG. 4, the vibration evaluation is performed on the mortar M which fixes the first-floor pipe joint 11 with the mortar M and fixes the first-floor pipe joint 11 when draining from a height of 3 m corresponding to the third floor. This was done by measuring the generated vibration.

  Here, SA-30 manufactured by Rion Co. was used as the vibrometer. Moreover, as a vibration pickup Pc, a PV-85 manufactured by Rion Co., Ltd. is used, and the surface of the mortar M is 290 mm away from the center of the pipe joint 11 and is 45 degrees from the axis of the side branch pipe connection part 11c. installed.

  In addition, the mortar M is 600 mm long × 600 mm wide × 150 mm high. Further, the third and second floor pipe joints 11 are fixed to the through-holes k of the floor slab F via mortar m, and the first floor pipe joint 11 is fixed with mortar M, and then a known support fitting is used. Was also fixed to mortar M.

  As Example 1, an aluminum-deposited polyethylene sheet having a thickness of 0.5 mm is used as the outer layer 2, a rock wool sheet having a thickness of 2.5 mm (specific gravity 0.7) is used as the intermediate layer 3, and the pipe layer 11 having a thickness of 12 mm is used. What wound the sound insulation vibration-proof sheet | seat 1 of thickness 15mm which used the rock wool sheet | seat (specific gravity 0.2) as the inner layer 4 was used. Further, as Example 2, an 80A size pipe joint 11 is formed by using an aluminum-deposited polyethylene sheet having a thickness of 0.2 mm as an outer layer 2, a rock wool sheet having a thickness of 2.0 mm (specific gravity 1.0) as an intermediate layer 3, and a thickness. What wound the sound-insulation vibration-proof sheet | seat 1 of thickness 17.2mm which used the rock wool sheet | seat (specific gravity 0.25) of 15 mm as the inner layer 4 was used.

  On the other hand, as Comparative Example 1, a 100 A size pipe joint 11 was used as it was without winding the sound insulation and vibration isolating sheet 1. As Comparative Example 2, the 80A size pipe joint 11 was used as it was without winding the sound insulation and vibration isolating sheet 1.

  For such examples and comparative examples, vibration values were measured for load flow rates of 1.5 liter / second and 4.5 liter / second. The measurement results are shown in Table 1 together with the pipe joint size, the presence / absence and contents of the sound and vibration insulation sheet.

表１によれば、遮音防振シート１を巻き付けた管継手１１は、遮音防振シート１を巻き付けない管継手１１に比較して、管継手１１を固定するモルタルＭに発生する振動を大幅に低減することができるものとなった。

According to Table 1, the pipe joint 11 wound with the sound-insulation and vibration-proof sheet 1 significantly reduces vibration generated in the mortar M that fixes the pipe joint 11 as compared with the pipe joint 11 that does not wind the sound-insulation and vibration-proof sheet 1. It can be reduced.

  As shown in FIG. 5, the noise evaluation is performed by winding the sound-insulation and vibration-proof sheet 1 over the entire length of the pipe joint 11 and the drainage stack 12 passing through the fourth floor of the test tower, and shielding the surroundings from the external noise. This was done by measuring the noise generated in the measurement room on the 4th floor when the measurement room was partitioned and drained from the 15th to 17th floors.

  Here, NA-29 manufactured by Rion Co. was used as a sound level meter. The microphone Mc was disposed at a position 500 mm away from the sound insulation and vibration isolating sheet 1 and 1000 mm upward from the axis of the side branch pipe connecting portion 11 c of the pipe joint 11.

  In Example 1, a 100A size pipe joint 11 and a drainage stack 12 connected to the pipe joint 11 are formed with an aluminum-deposited polyethylene sheet having a thickness of 0.5 mm as an outer layer 2 and a rock wool sheet having a thickness of 2.5 mm (specific gravity). 0.7) was used as the intermediate layer 3, and a 15 mm thick sound insulation and vibration isolating sheet 1 having a 12 mm thick rock wool sheet (specific gravity 0.2) as the inner layer 4 was used. Further, as Example 2, a 80 W size pipe joint 11 and a drainage stack 12 connected to the pipe joint 11 are formed by using an aluminum-deposited polyethylene sheet having a thickness of 0.2 mm as an outer layer 2 and a rock wool sheet having a thickness of 2.0 mm. A material having a 17.2 mm-thickness sound and vibration-insulating sheet 1 wound with (specific gravity 1.0) as the intermediate layer 3 and 15 mm-thick rock wool sheet (specific gravity 0.25) as the inner layer 4 was used.

  On the other hand, as Comparative Example 1, the 100 A size pipe joint 11 and the drainage stack 12 connected to the pipe joint 11 were used as they were without winding the sound insulation and vibration isolating sheet 1. As Comparative Example 2, the 80A size pipe joint 11 and the drainage stack 12 connected to the pipe joint 11 were used as they were without winding the sound insulation and vibration isolating sheet 1. As Comparative Example 3, a 100A-size pipe joint 11 and a drainage stack 12 connected to the pipe joint 11 were coated with an aluminum-deposited polyethylene sheet having a thickness of 0.5 mm and a rock wool sheet having a thickness of 14.5 mm (specific gravity 0.2). ) And a vibration-proof sheet having a thickness of 15 mm was used.

  For these examples and comparative examples, a steady flow of 1.5 liter / second from the 17th floor and a steady flow of 1.5 liter / second from the 17th, 16th, and 15th floor respectively. The noise was measured for a case where the flow rate was set to 4.5 liters / second on the 15th floor. The measurement results are shown in Table 2 together with the pipe joint size, presence / absence and contents of the sound and vibration insulation sheet.

表２によれば、遮音防振シート１を巻き付けた管継手１１および排水立て管１２は、遮音防振シート１を巻き付けない管継手１１および排水立て管１２（比較例１，２）や、低比重のロックウールシートを巻き付けた管継手１１および排水立て管１２（比較例３）に比較して、騒音を大幅に低減することができるものとなった。

According to Table 2, the pipe joint 11 and the drainage stack 12 around which the sound insulation and vibration isolating sheet 1 is wound are the pipe joint 11 and the drainage stack 12 (comparative examples 1 and 2) in which the sound insulation and vibration isolating sheet 1 is not wound. As compared with the pipe joint 11 and the drainage stack 12 (Comparative Example 3) around which the rock wool sheet having a specific gravity is wound, the noise can be greatly reduced.

  As described above, according to the present invention, since sound and vibration can be reliably reduced by the soundproof and vibration-proof sheet having fire resistance, the soundproof and vibration-proof sheet is wrapped around the pipe joint and the pipe, and the partition through portion of the building It is possible to reliably reduce air-borne sound and solid-borne sound due to sewage that flows down by installing them in the areas that pass through each floor, and to improve the comfort of the indoor environment and living space Can do. And since it can wind and use without distinguishing a pipe joint and a pipe | tube, workability | operativity in a field improves significantly and working efficiency can be improved significantly.

It is sectional drawing which shows typically one Embodiment of the sound-insulation vibration-proof sheet wound around the pipe joint of this invention. It is a perspective view explaining the point which winds a sound insulation vibration proof sheet around a pipe joint. It is sectional drawing explaining the point which arrange | positions the pipe joint which wound the sound-insulation vibration-proof sheet | seat in a division | segmentation penetration part. It is the schematic explaining the vibration evaluation test. It is the schematic explaining the noise evaluation test. FIG. 6 is an enlarged view showing a measurement room on the fourth floor in the noise evaluation test of FIG. 5. It is the schematic explaining the drainage piping of a building.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sound insulation vibration-proof sheet 2 Outer layer 3 Middle layer 4 Inner layer 10 Drainage pipe 11 Pipe joint 12 Drainage stand pipe 13 Side branch pipe

Claims (3)

An outer layer made of a resin sheet provided with a metal coating, an intermediate layer made of a high specific gravity inorganic fiber sheet laminated on the outer resin sheet side, and an inner layer made of a low specific gravity inorganic fiber sheet laminated on the intermediate layer A sound insulation and vibration-insulating sheet composed of the above is inserted into a partition through portion of the building and is wound around a portion corresponding to the partition through portion of a pipe joint or pipe constituting a drain pipe of the building A pipe fitting or pipe characterized by that. Claim 1 pipe joint or tube described, while being inserted into the compartment through portion of a building, a pipe joint structure compartment through portion is characterized by being backfilled by mortar or tube structure. An outer layer made of a resin sheet provided with a metal coating, an intermediate layer made of a high specific gravity inorganic fiber sheet laminated on the outer resin sheet side, and an inner layer made of a low specific gravity inorganic fiber sheet laminated on the intermediate layer sound insulating antivibration sheet composed of a can, drainage structure characterized in that wound over the entire length of configuring the drainage pipe pipe fitting and tube drainage vertical tube connected to the joint of the building.

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