JP4330110B2 - Soundproof insulation cover - Google Patents

Soundproof insulation cover Download PDF

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Publication number
JP4330110B2
JP4330110B2 JP2002163272A JP2002163272A JP4330110B2 JP 4330110 B2 JP4330110 B2 JP 4330110B2 JP 2002163272 A JP2002163272 A JP 2002163272A JP 2002163272 A JP2002163272 A JP 2002163272A JP 4330110 B2 JP4330110 B2 JP 4330110B2
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Prior art keywords
heat insulating
soundproof
insulating cover
plate
sound
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JP2002163272A
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JP2004011694A (en
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啓樹 永田
哲治 根本
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A&A Material Corp
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A&A Material Corp
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00Energy generation of nuclear origin

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Description

【0001】
【発明の属する技術分野】
本発明は、原子力設備における配管用の防音断熱カバーに関するものである。
【0002】
【従来の技術】
原子力発電プラントなど原子力設備における配管には、断熱用のカバーが被覆されていた。図6に、かかる従来の断熱用カバーの断面を示す。断熱用カバー1は、配管2の外周面と当接するように最内側に配置される第1断熱部材3と、その半径方向外側に設けられる鉛板5と、その外側に設けられた第2断熱部材7と、さらに最外側に配置される外装鉄板9とを備えている。第1及び第2の断熱部材3,7は、通常、ロックウールや珪酸カルシウム材(シリカカバー)などから構成され、外装鉄板9は、ステンレス、亜鉛めっき鋼板あるいはアルミニウム板などから構成されている。
【0003】
【発明が解決しようとする課題】
しかしながら、上述した従来の断熱用カバーは、一旦、配管の周囲に施工されると、メンテナンスの際に配管から取り外した後には再度の取り付けが困難である問題があり、メンテナンスの度に新たな断熱用カバーを施工しなければならず、コストの増加につながっていた。また、ロックウールを用いた態様では、取り外しの際にロックウールが空気中に飛散する恐れがあり、施工上改善が望まれている点となっていた。また、配管の被覆目的としては、断熱効果だけではなく防音効果も望まれているところ、上記の断熱用カバーでは、鉛板5による若干の遮音作用があるだけであり、音の減衰が十分ではないため、より防音効果の高いカバーの出現が望まれている。
【0004】
従って、本発明は、上述した従来の問題に鑑みてなされたものであり、十分な防音効果及び断熱効果を兼ね備え、且つ、取り外し及びメンテナンス後の再取り付けが可能な、防音断熱カバーを提供することを目的とする。
【0005】
【課題を解決するための手段】
上述の目的を達成するため、本発明は、被覆対象の配管の周囲に配置される全体が筒状の防音断熱カバーであって、開放可能な少なくとも二つ以上の弧状の構成体からなり、各構成体が、ステンレス板で取り囲まれた、鉛板と、複数のエンボス山形の突起部を備え、その突起部がステンレス板の裏面と鉛板の表面およびステンレス板の表面と鉛板の裏面に当接するように鉛板の径方向両側に配置された一対のアルミニウム板とを有する遮音断熱部を備えた防音断熱カバーにおいて、前記遮音断熱部の内側には、第1間隔保持部により形成された第1空気層を介してアルミニウム繊維部材が配置され、更に、このアルミニウム繊維部材の内側と配管表面との間に第2空気層が確保されるように、第2間隔保持部を備えているものである。
【0006】
また、前記各構成体における他の構成体との連結面は、段違いに形成されており、この連結面における段差部は、前記第1空気層と前記遮音断熱部との境界上に位置しているのが好適である。
【0007】
【発明の実施の形態】
以下、この発明の実施の形態を添付図面に基づいて説明する。
図1及び図2に本発明の実施の形態に係る防音断熱カバーの組み立て状態及び分離状態を示す。防音断熱カバー11は、相互に分離可能な二つの構成体13,15から構成されている。各構成体13,15は、ほぼ90度の角度範囲で延長する弧状の形状を有する。図1に示されるように、構成体13,15が組み立てられた状態において、防音断熱カバー11は全体が筒状となる。防音断熱カバー11の上半部を構成する構成体13の上部には、運搬の際の利便性を考慮して取手17が設けられている。構成体13,15における連結部の近傍には、両構成体13,15を組み立て状態に固定するバックル19が、両構成体13,15にまたがるように設けられている。また、構成体15における構成体13との連結部近傍には、両構成体13,15の連結部を覆うカバー21が設けられている。なお、カバー21は、本実施の形態に限定されず、構成体13の方に取り付けられていてもよい。
【0008】
次に、図3に基づいて、各構成体13,15の構成を説明する。上半部を構成する構成体13は、その内側すなわち被覆対象となる配管表面23と対向する側が、アルミニウム繊維部材25aから構成されると共に、構成体13の外側が遮音断熱部27aから構成されている。また、下半部を構成する構成体15も同様に、その内側がアルミニウム繊維部材25bから、外側が遮音断熱部27bから構成されている。
【0009】
アルミニウム繊維部材25a,25bはそれぞれ、アルミニウム繊維吸音板から構成されている。かかるアルミニウム繊維吸音板は、アルミニウム繊維をアルミニウムエキスパンダメタルでサンドイッチしたものを、さらにロール圧延により圧着することにより形成された、アルミニウムのみで構成される多孔質吸音材である。
【0010】
遮音断熱部27a、27bはそれぞれ、径方向中央に位置する鉛板29と、鉛板29の両側に配置された一対のアルミニウム板31と、さらに、それら鉛板29及びアルミニウム板31を取り囲み、遮音断熱部27a、27bの表面を構成するステンレス板33a,33bとを備える。ステンレス板33a,33bと鉛板29とは、等間隔で離隔して延びそれぞれ弧状の板部材であり、一方、それらの間に配置されるアルミニウム板31は、複数のエンボス山形の突起部を備え、その突起部ステンレス板33a,33bの裏面と鉛板29の表面およびステンレス板の表面と鉛板29の裏面に当接している。上半部の遮音断熱部27aを構成するステンレス板33aは、外側表面37、内側表面39及びこれらの間に位置する第1連結面41を有している。
【0011】
また、上半部の構成体13は、アルミニウム繊維部材25aと遮音断熱部27aとの間に第1空気層43を形成するために、アルミニウム繊維部材25aと遮音断熱部27aとを所定間隔で離隔させておく第1間隔保持部45を有する。第1間隔保持部45は、第1連結面41と同様に、下半部の構成体15と当接する第2連結面としても機能する。この第1連結面41と、第2連結面である第1間隔保持部(以下、第2連結面とも称する)45とは、段違いに配置されており、段違い接続部47により接続されている。そして、第1間隔保持部45と段違い接続部47は共に、ステンレスより構成されている。
【0012】
下半部のステンレス板33bは、外側表面49、内側表面51,53及びこれらの間に位置する第1連結面55を有している。また、下半部の構成体15も、上半部の構成体13と同様に、アルミニウム繊維部材25bと遮音断熱部27bとの間に第1空気層57を形成するために、アルミニウム繊維部材25bと遮音断熱部27bとを所定間隔で離隔させておく第1間隔保持部59を有する。第1間隔保持部59は、第1連結面55と同様に、上半部の構成体13と当接する第2連結面としても機能する。この第1連結面55と、第1間隔保持部(以下、第2連結面とも称する)59とは、段違いに配置されており、段違い接続部として機能するステンレス板33bの内側表面(以下、段違い接続部とも称する)51によって接続されている。第1間隔保持部59も、ステンレスより構成されている。第1連結面41,55及び第2連結面45,59からなる連結面の段差部、すなわち、段違い接続部47,51は、第1空気層43,57と遮音断熱部27a、27bとの境界線B上に位置している。
【0013】
また、各構成体13,15は、配管表面23とアルミニウム繊維部材25a,25bとの間に第2空気層61,63を形成するために、配管表面23とアルミニウム繊維部材25a,25bとを所定間隔で離隔させておく第2間隔保持部65,67を有する。第2間隔保持部65,67は、配管軸と垂直方向断面がほぼL字状の部分であり、アルミニウム繊維部材25a,25bと第2連結面45,59との間から配管表面23に向けて延長した部分である。
【0014】
なお、本実施の形態では、ステンレス板33aの外側表面37、第1連結面41、段違い接続部47、第1間隔保持部45及び第2間隔保持部65と、ステンレス板33bの外側表面49、第1連結面55、段違い接続部51、第2連結面59及び第2間隔保持部67とはそれぞれ、一体に成形されており、ステンレス板33a,33bの内側表面39,53は、かかる一体成形物に図示しないリベットにより接続されている。しかしながら、本実施の形態の各構成体13,15におけるステンレス構成部分の成形態様は、その一例であり、いかなる部分を一体あるいは別体とするかは適宜改変することが可能である。また、本実施の形態では、第2連結面45,59と第2間隔保持部65,67との間にオバーラップ部69,71を設け、アルミニウム繊維部材25a,25bは対応するオバーラップ部69,71に図示しないリベットにより接続されるが、本発明のアルミニウム繊維部材25a,25bの固定対応はこれに限定されず、適宜改変しうる。さらに、第2間隔保持部65,67の設置態様は、第1間隔保持部45,59と一体的に成形されている態様に限定されず、例えば、第1間隔保持部45,59あるいはアルミニウム繊維部材25a,25bにリベット止めするなど、他の固定態様でもよい。
【0015】
次に、以上のように構成された防音断熱カバー11の動作について説明する。まず、各バックル19を解錠して構成体13,15を相互に分離させておき、それぞれ配管表面23を覆うように各構成体13,15を配置する。そして、防音断熱カバー11が配管表面23の周囲で筒状となる状態で、各バックル19を施錠し両構成体13,15を連結する。このように配管を防音断熱カバー11で被覆すると、第2間隔保持部65,67によりアルミニウム繊維部材25a,25bの内側には第2空気層61,63が確保され、第1間隔保持部45,59によりアルミニウム繊維部材25a,25bの側には第1空気層43,57が確保される。よって、配管から生じる音は、前後に空気層を有するアルミニウム繊維部材25a,25bによって効率よく吸音される。また、配管から生じる音は、アルミニウム繊維部材25a,25bを透過しても、その外側にある遮音断熱部27a、27bにおいて鉛板29及びステンレス板33a,33bにより遮断される。また、両構成体13,15の第1連結面41,55と第2連結面45,59とは段違いに構成されているため、配管から生じる音は両構成体13,15の連結箇所からも漏れにくくなっており、より防音性が高められている。さらに、配管から生じる熱は、遮音断熱部27a、27bにおいて鉛板29及びアルミニウム板31により遮断される。よって、配管に防音断熱カバー11を被覆することで、吸音及び遮音による防音効果と、断熱効果との双方を得ることができる。
【0016】
また、メンテナンス時などに、防音断熱カバー11を配管から取り外す場合には、各バックル19を解錠するだけで、構成体13,15が分離可能となり、短時間の施工作業により簡単に取り外すことができる。さらに、メンテナンス後など防音断熱カバー11を再取り付けする場合にも、新規に取り付けする場合と同様に、構成体13,15を配管外周で筒状となるように配置した後、各バックル19を施錠するだけでよい。よって、取り外し時と同様に、短時間の施工作業により簡単に取り付けが行え、しかも一度取り外した防音断熱カバー11を再度利用することができる。
【0017】
なお、本発明の防音断熱カバーは、上記の実施の形態に限定されるものではなく、適宜改変して実施することが可能である。まず、図4及び図5に示される防音断熱カバー111のように、各構成体13,15のアルミニウム繊維部材25a,25bの内側面に、板ばね状の第2間隔保持部160を設けるような態様でもよい。さらに、第1間隔保持部や第2間隔保持部は、第1空気層や第2空気層を確保できるように所定の間隔を維持できる態様であれば、その形態、設置箇所など適宜改変することが可能である。
【0018】
また、上述した遮音断熱部27a、27bは、一枚の鉛板29とその両側に配置された二枚のアルミニウム板31とさらにそれを取り囲むステンレス板33aおよび33bとを有するものであったが、鉛板およびアルミニウム板の数は、適宜改変して実施することができる。
【0019】
また、第1空気層43,57や第2空気層61,63はそれぞれ、空気のみが存在し他の部材が存在しない層として図示・説明しているが、これに限定されず、例えばロックウールなど、吸音・遮音・断熱などの作用を有する他の部材が空気と共に収容された層を空気層として実施することも可能である。
【0020】
本発明の防音断熱カバーを構成する構成体の数は、二つに限定されるものではなく、三つ以上の構成体からなる態様でもよい。また、各構成体の連結態様は、相互に完全に分離する態様に限定されず、筒状の状態から配管に対する被覆又は離脱が行えるよう開放できる態様を広く含み、したがって、ヒンジなどを用いて相互に揺動する態様でもよい。
【0021】
【発明の効果】
以上説明したように、本発明の防音断熱カバーによれば、短時間の施工作業により取り付け、取り外し及び再取り付けを行うことが可能でありながら、遮音断熱部の内側における、前後に空気層を有するアルミニウム繊維部材による効率のよい吸音によって高い防音及び断熱効果を得ることが可能となる。
【図面の簡単な説明】
【図1】 本発明の実施の形態に係る防音断熱カバーの組み立て状態を示す図である。
【図2】 本発明の実施の形態に係る防音断熱カバーの分離状態を示す図である。
【図3】 本発明の実施の形態に係る防音断熱カバーにおける両構成体の連結部近傍の断面図である。
【図4】 本発明の別の実施の形態に係る防音断熱カバーの分離状態を示す図である。
【図5】 図4の防音断熱カバーにおける両構成体の連結部近傍の断面図である。
【図6】 従来の断熱用のカバーの構成部材を示す断面図である。
【符号の説明】
11,111…防音断熱カバー、13,15…各構成体、23…配管表面、25a,25b…アルミニウム繊維部材、27a,27b…遮音断熱部、43,57…第1空気層、45,59…第1間隔保持部、61,63…第2空気層、65,67…第2間隔保持部。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a soundproof and heat insulating cover for piping in a nuclear facility.
[0002]
[Prior art]
Piping in nuclear equipment such as a nuclear power plant was covered with a heat insulating cover. FIG. 6 shows a cross section of such a conventional heat insulating cover. The heat insulating cover 1 includes a first heat insulating member 3 disposed on the innermost side so as to contact the outer peripheral surface of the pipe 2, a lead plate 5 provided on the outer side in the radial direction, and a second heat insulating member provided on the outer side. A member 7 and an exterior iron plate 9 disposed on the outermost side are provided. The first and second heat insulating members 3 and 7 are usually made of rock wool, calcium silicate material (silica cover) or the like, and the exterior iron plate 9 is made of stainless steel, galvanized steel plate or aluminum plate.
[0003]
[Problems to be solved by the invention]
However, once the above-described conventional heat insulation cover is installed around the pipe, there is a problem that it is difficult to attach it again after it is removed from the pipe at the time of maintenance. Cover had to be installed, leading to increased costs. Moreover, in the aspect using rock wool, there existed a possibility that rock wool might disperse in air in the case of removal, and it became the point from which construction improvement is desired. In addition, as a pipe covering purpose, not only a heat insulating effect but also a soundproofing effect is desired. However, the above-described heat insulating cover has only a slight sound insulating action by the lead plate 5, and sound attenuation is not sufficient. Therefore, the appearance of a cover with a higher soundproofing effect is desired.
[0004]
Accordingly, the present invention has been made in view of the above-described conventional problems, and provides a soundproof heat insulating cover that has sufficient soundproofing effect and heat insulating effect, and that can be removed and reattached after maintenance. With the goal.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention is an overall tubular soundproof heat insulating cover arranged around the pipe to be covered, and is composed of at least two arcuate structures that can be opened, The structure includes a lead plate surrounded by a stainless steel plate and a plurality of embossed chevron-shaped protrusions, which contact the back surface of the stainless steel plate, the front surface of the lead plate, the front surface of the stainless steel plate, and the back surface of the lead plate. A soundproof heat insulating cover having a sound insulating heat insulating portion having a pair of aluminum plates arranged on both sides in the radial direction of the lead plate so as to be in contact with each other , a first space holding portion is formed inside the sound insulating heat insulating portion. An aluminum fiber member is disposed through one air layer, and further, a second space holding part is provided so that a second air layer is secured between the inside of the aluminum fiber member and the pipe surface. is there.
[0006]
In addition, the connecting surface of each of the constituent members with the other constituent members is formed in steps, and the stepped portion of the connecting surface is located on the boundary between the first air layer and the sound insulating heat insulating portion. it is preferable to have.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings.
1 and 2 show an assembled state and a separated state of the soundproof and heat insulating cover according to the embodiment of the present invention. The soundproof heat insulating cover 11 is composed of two components 13 and 15 that are separable from each other. Each component 13 and 15 has an arcuate shape extending in an angle range of approximately 90 degrees. As shown in FIG. 1, in a state where the structural bodies 13 and 15 are assembled, the entire soundproof and heat insulating cover 11 is cylindrical. A handle 17 is provided on the upper portion of the structural body 13 constituting the upper half of the sound-insulating and heat-insulating cover 11 in consideration of convenience during transportation. A buckle 19 that fixes both the structural bodies 13 and 15 in an assembled state is provided in the vicinity of the connecting portion of the structural bodies 13 and 15 so as to straddle both the structural bodies 13 and 15. Further, a cover 21 that covers the connecting portions of both the structural bodies 13 and 15 is provided in the vicinity of the connecting portion of the structural body 15 to the structural body 13. The cover 21 is not limited to the present embodiment, and may be attached to the component 13.
[0008]
Next, the structure of each structure 13 and 15 is demonstrated based on FIG. The structure 13 constituting the upper half is configured such that the inner side, that is, the side facing the pipe surface 23 to be covered is composed of an aluminum fiber member 25a, and the outer side of the structure 13 is composed of a sound insulation heat insulating part 27a. Yes. Similarly, the structural body 15 constituting the lower half is composed of an aluminum fiber member 25b on the inner side and a sound insulating heat insulating part 27b on the outer side.
[0009]
Each of the aluminum fiber members 25a and 25b is composed of an aluminum fiber sound absorbing plate. Such an aluminum fiber sound-absorbing plate is a porous sound-absorbing material made of only aluminum, which is formed by further pressing a roll of aluminum fibers sandwiched between aluminum expander metals.
[0010]
Each of the sound insulation and heat insulating portions 27a and 27b surrounds the lead plate 29 located at the center in the radial direction, a pair of aluminum plates 31 disposed on both sides of the lead plate 29, and further surrounds the lead plate 29 and the aluminum plate 31. And stainless steel plates 33a and 33b constituting the surfaces of the heat insulating portions 27a and 27b. Stainless steel plate 33a, 33b and the lead plate 29, are each arcuate plate member Ru extending spaced apart at equal intervals, while the aluminum plate 31 disposed therebetween, the projecting portion of the chevron multiple embossed provided, that has its projection is in contact on the back surface and the lead plate 29 of stainless steel plate 33a, the surface and the stainless steel plate on the rear surface of 33b and lead plate 29. The stainless steel plate 33a constituting the sound insulating heat insulating portion 27a in the upper half has an outer surface 37, an inner surface 39, and a first connecting surface 41 located therebetween.
[0011]
Further, the upper half component 13 separates the aluminum fiber member 25a and the sound insulation heat insulating portion 27a at a predetermined interval in order to form the first air layer 43 between the aluminum fiber member 25a and the sound insulation heat insulation portion 27a. A first interval holding unit 45 is provided. Similarly to the first connection surface 41, the first interval holding unit 45 also functions as a second connection surface that contacts the lower half component 15. The first connection surface 41 and a first interval holding portion (hereinafter also referred to as a second connection surface) 45 that is the second connection surface are arranged in steps and are connected by a step connection portion 47. And both the 1st space | interval holding | maintenance part 45 and the uneven connection part 47 are comprised from stainless steel.
[0012]
The lower half stainless steel plate 33b has an outer surface 49, inner surfaces 51 and 53, and a first connecting surface 55 located therebetween. Similarly to the upper half structure 13, the lower half structure 15 also has an aluminum fiber member 25b for forming the first air layer 57 between the aluminum fiber member 25b and the sound insulation and heat insulation section 27b. And a sound insulation heat insulating portion 27b are provided with a first interval holding portion 59 that separates the sound insulating heat insulating portion 27b at a predetermined interval. Similarly to the first connection surface 55, the first interval holding portion 59 also functions as a second connection surface that comes into contact with the upper half component 13. The first connecting surface 55 and the first interval holding portion (hereinafter also referred to as a second connecting surface) 59 are arranged in a stepped manner, and the inner surface (hereinafter referred to as a stepped portion) of the stainless steel plate 33b functioning as a stepped connecting portion. (Also referred to as a connection portion) 51. The 1st space | interval holding | maintenance part 59 is also comprised from stainless steel. The stepped portion of the connecting surface composed of the first connecting surfaces 41, 55 and the second connecting surfaces 45, 59, that is, the step connecting portions 47, 51 are boundaries between the first air layers 43, 57 and the sound insulating heat insulating portions 27a, 27b. Located on line B.
[0013]
In addition, each of the structural bodies 13 and 15 has the pipe surface 23 and the aluminum fiber members 25a and 25b predetermined to form the second air layers 61 and 63 between the pipe surface 23 and the aluminum fiber members 25a and 25b. It has the 2nd space | interval holding | maintenance part 65,67 spaced apart by the space | interval. The second interval holding portions 65 and 67 are portions having a substantially L-shaped cross section perpendicular to the pipe axis, and are directed from the space between the aluminum fiber members 25 a and 25 b and the second connection surfaces 45 and 59 toward the pipe surface 23. It is an extended part.
[0014]
In the present embodiment, the outer surface 37 of the stainless plate 33a, the first connecting surface 41, the step connection portion 47, the first interval holding portion 45 and the second interval holding portion 65, the outer surface 49 of the stainless plate 33b, The first connection surface 55, the step connection portion 51, the second connection surface 59, and the second interval holding portion 67 are integrally formed, and the inner surfaces 39 and 53 of the stainless plates 33a and 33b are integrally formed. It is connected to the object by a rivet (not shown). However, the forming aspect of the stainless steel component in each of the components 13 and 15 of the present embodiment is an example thereof, and it is possible to appropriately change which portion is integrated or separated. Moreover, in this Embodiment, the overwrap parts 69 and 71 are provided between the 2nd connection surfaces 45 and 59 and the 2nd space | interval holding | maintenance parts 65 and 67, and the aluminum fiber members 25a and 25b correspond to the overwrap parts 69 and 71. However, the fixing of the aluminum fiber members 25a and 25b according to the present invention is not limited to this, and can be modified as appropriate. Furthermore, the installation mode of the 2nd space | interval holding | maintenance part 65,67 is not limited to the aspect integrally molded with the 1st space | interval holding | maintenance part 45,59, For example, the 1st space | interval holding | maintenance part 45,59 or aluminum fiber Other fixing modes such as riveting to the members 25a and 25b may be used.
[0015]
Next, the operation of the soundproof and heat insulating cover 11 configured as described above will be described. First, the respective buckles 19 are unlocked to separate the structural bodies 13 and 15 from each other, and the structural bodies 13 and 15 are arranged so as to cover the piping surface 23, respectively. Then, in a state in which the soundproof and heat insulating cover 11 is formed in a cylindrical shape around the pipe surface 23, the respective buckles 19 are locked and both the structural bodies 13 and 15 are connected. Thus, when the pipe is covered with the soundproof heat insulating cover 11, the second air layers 61, 63 are secured inside the aluminum fiber members 25a, 25b by the second space holding portions 65, 67, and the first space holding portions 45, aluminum fibers member 25a by 59, on the outer side of 25b is secured first air layer 43,57. Therefore, the sound generated from the piping is efficiently absorbed by the aluminum fiber members 25a and 25b having an air layer at the front and rear. Moreover, even if the sound generated from the piping passes through the aluminum fiber members 25a and 25b, the sound insulation and heat insulation portions 27a and 27b outside the aluminum fiber members 25a and 25b are blocked by the lead plate 29 and the stainless plates 33a and 33b. In addition, since the first connecting surfaces 41 and 55 and the second connecting surfaces 45 and 59 of both the structural bodies 13 and 15 are configured to be different from each other, the sound generated from the pipes is also generated from the connecting portions of the both structural bodies 13 and 15. It is hard to leak and the soundproofing is improved. Furthermore, the heat generated from the piping is blocked by the lead plate 29 and the aluminum plate 31 in the sound insulation heat insulating portions 27a and 27b. Therefore, by covering the pipe with the soundproofing and heat insulating cover 11, it is possible to obtain both a soundproofing effect due to sound absorption and sound insulation and a heat insulating effect.
[0016]
Further, when removing the sound insulation cover 11 from the pipe during maintenance or the like, the components 13 and 15 can be separated by simply unlocking the buckles 19 and can be easily removed by a short construction work. it can. Further, when the soundproof and heat insulating cover 11 is reattached after maintenance, etc., as in the case of newly attaching, after the structural bodies 13 and 15 are arranged in a cylindrical shape on the outer periphery of the pipe, each buckle 19 is locked. Just do it. Therefore, as in the case of removal, the attachment can be easily performed by a short construction work, and the soundproof and heat insulating cover 11 once removed can be used again.
[0017]
In addition, the soundproof heat insulation cover of this invention is not limited to said embodiment, It can change and implement suitably. First, as in the soundproof and heat insulating cover 111 shown in FIGS. 4 and 5, the leaf spring-like second interval holding portion 160 is provided on the inner side surfaces of the aluminum fiber members 25 a and 25 b of the constituent members 13 and 15. An aspect may be sufficient. Further, the first space holding portion and the second space holding portion, if aspects that can maintain a predetermined gap so that can be secured first air layer and the second air layer, its form, appropriately modified and installation locations It is possible.
[0018]
In addition, the above-described sound insulating and heat insulating portions 27a and 27b have one lead plate 29, two aluminum plates 31 disposed on both sides thereof , and stainless plates 33a and 33b surrounding the aluminum plate 31. , number of sheets of lead plate and an aluminum plate can be carried out by suitably modifying.
[0019]
Further, the first air layers 43 and 57 and the second air layers 61 and 63 are illustrated and described as layers in which only air exists and other members do not exist. It is also possible to implement a layer in which other members having effects such as sound absorption, sound insulation and heat insulation are accommodated together with air as an air layer.
[0020]
The number of components constituting the soundproof and heat insulating cover of the present invention is not limited to two, and may be an embodiment composed of three or more components. In addition, the connection mode of each component is not limited to a mode of completely separating from each other, and widely includes a mode in which it can be opened so that pipes can be covered or detached from a cylindrical state. It may be a mode of swinging.
[0021]
【The invention's effect】
As described above, according to the soundproof heat insulating cover of the present invention, it is possible to attach, remove, and reattach by a short construction work, but it has an air layer before and after the sound insulating heat insulating part. High soundproofing and heat insulating effects can be obtained by efficient sound absorption by the aluminum fiber member .
[Brief description of the drawings]
FIG. 1 is a diagram showing an assembled state of a soundproof heat insulating cover according to an embodiment of the present invention.
FIG. 2 is a view showing a separated state of the soundproof heat insulating cover according to the embodiment of the present invention.
FIG. 3 is a cross-sectional view of the vicinity of a connecting portion of both components in the soundproof and heat insulating cover according to the embodiment of the present invention.
FIG. 4 is a view showing a separated state of a soundproof and heat insulating cover according to another embodiment of the present invention.
FIG. 5 is a cross-sectional view of the vicinity of a connecting portion of both components in the soundproof and heat insulating cover of FIG. 4;
FIG. 6 is a cross-sectional view showing components of a conventional heat insulating cover.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 11,111 ... Sound insulation heat insulation cover, 13, 15 ... Each structure, 23 ... Pipe surface, 25a, 25b ... Aluminum fiber member, 27a, 27b ... Sound insulation heat insulation part, 43, 57 ... 1st air layer, 45, 59 ... 1st space | interval holding | maintenance part, 61,63 ... 2nd air layer, 65,67 ... 2nd space | interval holding | maintenance part.

Claims (2)

被覆対象の配管の周囲に配置される全体が筒状の防音断熱カバーであって、開放可能な少なくとも二つ以上の弧状の構成体からなり、各構成体が、ステンレス板で取り囲まれた、鉛板と、複数のエンボス山形の突起部を備え、その突起部がステンレス板の裏面と鉛板の表面およびステンレス板の表面と鉛板の裏面に当接するように鉛板の両側に配置された一対のアルミニウム板とを有する遮音断熱部を備えた防音断熱カバーにおいて、
前記遮音断熱部の内側には、第1間隔保持部により形成された第1空気層を介してアルミニウム繊維部材が配置され、更に、このアルミニウム繊維部材の内側と配管表面との間に第2空気層が確保されるように、第2間隔保持部を備えていることを特徴とする防音断熱カバー。
A lead, which is a cylindrical soundproof heat insulating cover, which is arranged around the pipe to be covered, and which is composed of at least two arc-shaped components that can be opened, and each component is surrounded by a stainless steel plate. And a pair of embossed chevron-shaped protrusions disposed on both sides of the lead plate so that the protrusions are in contact with the back surface of the stainless steel plate, the front surface of the lead plate, and the front surface of the stainless steel plate and the back surface of the lead plate. In a soundproof heat insulating cover having a sound insulating heat insulating part having an aluminum plate,
An aluminum fiber member is disposed inside the sound insulation heat insulating part via a first air layer formed by a first spacing holding part, and further, a second air is provided between the inner side of the aluminum fiber member and the pipe surface. A soundproof and heat insulating cover, comprising a second gap holding portion so as to secure a layer.
上記各構成体には、他の構成体との連結面がそれぞれ段違いに形成されており、この連結面における段違いを形成する段差部が、第1空気層と遮音断熱部との境界上に位置していることを特徴とする請求項1に記載の防音断熱カバー。  In each of the above-described components, the connecting surface with the other components is formed in steps, and the step portion that forms the step in the connecting surface is positioned on the boundary between the first air layer and the sound insulation heat insulating portion. The soundproof heat insulating cover according to claim 1, wherein the soundproofing heat insulating cover is provided.
JP2002163272A 2002-06-04 2002-06-04 Soundproof insulation cover Expired - Fee Related JP4330110B2 (en)

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