JP2531929B2 - Insulation pipe manufacturing method - Google Patents
Insulation pipe manufacturing methodInfo
- Publication number
- JP2531929B2 JP2531929B2 JP5319457A JP31945793A JP2531929B2 JP 2531929 B2 JP2531929 B2 JP 2531929B2 JP 5319457 A JP5319457 A JP 5319457A JP 31945793 A JP31945793 A JP 31945793A JP 2531929 B2 JP2531929 B2 JP 2531929B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- heat insulating
- covering
- insulating material
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Thermal Insulation (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、配管に断熱材を巻き付
け、前記断熱材を被覆材で覆う断熱配管の製造方法に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a heat insulating pipe in which a heat insulating material is wound around a pipe and the heat insulating material is covered with a coating material.
【0002】[0002]
【従来の技術】従来、上記の断熱配管の製造方法におい
ては、断熱材を被覆材で覆う場合、被覆シートを断熱材
に巻き付けて、その被覆シートの周方向の端部同士を接
合していた。2. Description of the Related Art Conventionally, in the above-described method for manufacturing a heat insulating pipe, when the heat insulating material is covered with the covering material, the covering sheet is wrapped around the heat insulating material and the end portions in the circumferential direction of the covering sheet are joined together. .
【0003】[0003]
【発明が解決しようとする課題】しかしながら、上記方
法によれば、断熱材を被覆材で覆う場合、被覆シートを
断熱材に巻き付けて、その被覆シートの周方向の端部同
士を接合していたために、被覆シートの巻き付け作業
や、被覆シートの周方向の端部同士の接合作業に手間が
かり、作業性が悪いという欠点があった。この欠点を解
消する方法として、予め、被覆材を筒状に形成してなる
被覆管を準備しておき、断熱材を巻き付けた状態の配管
を、前記被覆管に挿通させることも考えられるが、その
ような方法では、配管に巻き付けた状態の断熱材の外径
を被覆管の内径に合わせることが難しく、前記外径が大
きくなりすぎて被覆管に挿通させにくかったり、逆に、
小さくなりすぎて被覆管との間に隙間ができ、両者を隙
間のない状態に一体化することが困難であったりすると
いう欠点がある。本発明は、上記従来の欠点を解消し、
配管、断熱材及び被覆材を、隙間のない状態に作業性よ
く一体化できる断熱配管の製造方法を提供することを目
的とする。However, according to the above method, when the heat insulating material is covered with the covering material, the covering sheet is wrapped around the heat insulating material and the circumferential end portions of the covering sheet are joined together. In addition, there is a drawback that the work of winding the cover sheet and the work of joining the end portions of the cover sheet in the circumferential direction are troublesome and the workability is poor. As a method of eliminating this drawback, in advance, it is possible to prepare a covering pipe formed by forming a covering material into a tubular shape, and to insert a pipe in a state in which a heat insulating material is wound into the covering pipe. In such a method, it is difficult to match the outer diameter of the heat insulating material wound around the pipe with the inner diameter of the cladding tube, and the outer diameter is too large to be inserted into the cladding tube, or conversely,
There is a drawback that it becomes too small to form a gap with the cladding tube, and it is difficult to integrate the both into a state without a gap. The present invention eliminates the above-mentioned conventional drawbacks,
An object of the present invention is to provide a method for manufacturing a heat insulating pipe in which the pipe, the heat insulating material, and the covering material can be integrated in a state without a gap with good workability.
【0004】[0004]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明にかかる断熱配管の製造方法の第1の特徴
手段は、予め、被覆材を筒状に形成してなる被覆管を準
備しておき、配管に断熱材を前記被覆管よりも大径にな
るように巻き付け、前記断熱材の外表面部に、その周方
向複数箇所で、それぞれ可撓性の帯状体を長手方向に沿
わせ、前記配管の一端部側で前記帯状体とともに前記断
熱材を前記被覆管よりも小径に縮径させ、前記被覆管に
挿通可能な長尺体を準備して、その一端部を前記縮径さ
せた配管の一端部側の縮径部に接続し、前記長尺体を前
記被覆管に挿通させて、前記縮径部側から前記帯状体、
前記断熱材及び前記配管を、一体に前記長尺体を介して
引っ張りながら前記被覆管に内嵌させ、その後、前記被
覆管と前記断熱材との間の前記帯状体を抜きとることに
あり、また、本発明にかかる断熱配管の製造方法の第2
の特徴手段は、予め、被覆材を筒状に形成してなる被覆
管を準備しておき、配管に断熱材を前記被覆管よりも大
径になるように巻き付け、前記配管に巻き付けた状態の
前記断熱材に樹脂製の防水チューブを外嵌して前記断熱
材を被覆し、前記防水チューブの外表面部に、その周方
向複数箇所で、それぞれ可撓性の帯状体を長手方向に沿
わせ、前記配管の一端部側で前記帯状体及び前記防水チ
ューブとともに前記断熱材を前記被覆管よりも小径に縮
径させ、前記被覆管に挿通可能な長尺体を準備して、そ
の一端部を前記縮径させた配管の一端部側の縮径部に接
続し、前記長尺体を前記被覆管に挿通させて、前記縮径
部側から前記帯状体、前記防水チューブ、前記断熱材及
び前記配管を、一体に前記長尺体を介して引っ張りなが
ら前記被覆管に内嵌させることにあり、それらの作用効
果はそれぞれ次の通りである。In order to achieve the above-mentioned object, the first characteristic means of the method for producing a heat insulating pipe according to the present invention is a covering pipe formed by previously forming a covering material into a tubular shape. Prepare and wind the heat insulating material around the pipe so as to have a diameter larger than that of the covering pipe, and at the outer surface portion of the heat insulating material, at a plurality of positions in the circumferential direction, respectively, form flexible strips in the longitudinal direction. Along the one end of the pipe, the heat insulating material is reduced to a diameter smaller than that of the coating pipe together with the strip-shaped body, and a long body that can be inserted into the coating pipe is prepared. Connected to the diameter-reduced portion on the one end side of the pipe that has been diameterd, the elongated body is inserted into the coating pipe, and the strip-shaped body from the diameter-reduced portion side,
The heat insulating material and the pipe are fitted into the covering tube while being pulled integrally through the elongated body, and then the strip-shaped body between the covering tube and the heat insulating material is removed. In addition, the second aspect of the method for manufacturing an adiabatic pipe according to the present invention
The characteristic means is that a coating pipe formed by forming the coating material into a tubular shape is prepared in advance, and the heat insulating material is wound around the pipe so as to have a larger diameter than the coating pipe, and the pipe is wound around the pipe. A resin waterproof tube is externally fitted to the heat insulating material to cover the heat insulating material, and flexible belt-shaped bodies are arranged along the longitudinal direction on the outer surface portion of the waterproof tube at a plurality of circumferential positions. , At the one end side of the pipe, the heat insulating material is reduced to a diameter smaller than that of the coating tube together with the strip-shaped body and the waterproof tube, and a long body that can be inserted into the coating tube is prepared. Connected to the reduced diameter portion on the one end side of the reduced diameter pipe, the elongated body is inserted into the covering pipe, the strip-shaped body from the reduced diameter portion side, the waterproof tube, the heat insulating material and the While pulling the pipe integrally through the elongated body, Located thereby, their functions and effects are each as follows.
【0005】[0005]
【作用】つまり、本発明にかかる断熱配管の製造方法の
第1の特徴手段によれば、断熱材を被覆管よりも大径に
なるように配管に巻き付けた後、断熱材の外表面部に、
その周方向複数箇所で、それぞれ可撓性の帯状体を長手
方向に沿わせておき、配管の一端部に、被覆管よりも小
径の縮径部を形成して、この縮径部側から前記帯状体、
断熱材及び配管を一体に長尺体を介して引っ張りながら
前記被覆管に内嵌させるので、内嵌操作の当初において
は、前記縮径部を容易に被覆管に内嵌させることがで
き、さらに、その後の長尺体の引っ張り操作時において
は、巻き付け状態の断熱材の外径が被覆管よりも大径で
あるにもかかわらず、前記可撓性の帯状体によって被覆
管との間の摺接抵抗を小さくして、その帯状体に案内さ
せながら、それらを容易に被覆管に内嵌させることがで
きる。しかも、前記断熱材と配管とを被覆管に内嵌する
場合、上記のように、その内嵌の前に、前記断熱材を被
覆管よりも大径になるように配管に巻き付けておくか
ら、断熱材と被覆管との間に隙間を生じにくくした状態
で配管と断熱材とを被覆管に一体化させることができ
る。そして、このようにして断熱材と配管とを被覆管に
内嵌させてから、前記帯状体を抜き取るだけで断熱配管
を完成でき、その結果、被覆材の巻き付け作業や、被覆
材の周方向の端部同士の接合作業を行うことなく、全体
として断熱配管を非常に容易に製作することができる。That is, according to the first characteristic means of the method for manufacturing a heat insulating pipe according to the present invention, after the heat insulating material is wound around the pipe so as to have a diameter larger than that of the covering pipe, the outer surface portion of the heat insulating material is wound. ,
A plurality of flexible strips are arranged along the longitudinal direction at a plurality of positions in the circumferential direction, and a reduced diameter portion having a diameter smaller than that of the cladding tube is formed at one end of the pipe, and the reduced diameter portion side is used to Band,
Since the heat insulating material and the pipe are fitted inside the covering pipe while being pulled integrally through the elongated body, the reduced diameter portion can be easily fitted inside the covering pipe at the beginning of the fitting operation. During the subsequent pulling operation of the elongated body, even though the outer diameter of the heat insulating material in the wound state is larger than that of the cladding tube, sliding between the insulating material and the cladding tube is performed by the flexible strip. It is possible to easily fit them in the cladding tube while reducing the contact resistance and guiding the strip-shaped body. Moreover, when the heat insulating material and the pipe are internally fitted to the covering pipe, as described above, since the heat insulating material is wound around the pipe so as to have a larger diameter than the covering pipe before the fitting. The pipe and the heat insulating material can be integrated with the covering pipe in a state in which a gap is less likely to be formed between the heat insulating material and the covering pipe. Then, after the heat insulating material and the pipe are fitted into the covering pipe in this way, the heat insulating pipe can be completed simply by removing the band-shaped body, and as a result, the winding work of the covering material and the circumferential direction of the covering material can be performed. As a whole, the heat insulating pipe can be very easily manufactured without performing the work of joining the ends.
【0006】また、本発明にかかる断熱配管の製造方法
の第2の特徴手段によれば、上記の第1の特徴手段の場
合とほぼ同様の理由から、帯状体、防水チューブ、断熱
材及び配管を容易に被覆管に内嵌させることができ、し
かも、断熱材と被覆管との間に隙間を生じにくくした状
態で帯状体、防水チューブ、断熱材及び配管を被覆管に
一体化させることができる。そして、配管に巻き付けた
状態の断熱材に樹脂製の防水チューブを外嵌して断熱材
を被覆したことで、断熱材に水が侵入するのを防止でき
る。Further, according to the second characteristic means of the method for manufacturing heat-insulated piping according to the present invention, the strip-shaped body, the waterproof tube, the heat insulating material and the piping are substantially the same as in the case of the above-mentioned first characteristic means. Can be easily fitted into the cladding tube, and moreover, the belt-like body, the waterproof tube, the heat insulating material and the pipe can be integrated with the cladding tube in a state in which a gap is less likely to be formed between the insulating material and the cladding tube. it can. Then, the resin waterproof tube is externally fitted to the heat insulating material wound around the pipe to cover the heat insulating material, so that water can be prevented from entering the heat insulating material.
【0007】[0007]
【発明の効果】従って、本発明にかかる断熱配管の製造
方法の第1の特徴手段によれば、断熱材と被覆管との間
に隙間を生じにくくした状態で配管と断熱材とを被覆管
に一体化させることができ、しかも全体として断熱配管
を非常に容易に製作することができるから、断熱性能に
すぐれた断熱配管を作業性よく製作できる断熱配管の製
造方法を提供することができた。また、本発明にかかる
断熱配管の製造方法の第2の特徴手段によれば、上記の
第1の特徴手段と同様の効果を奏することができる他
に、断熱材に水が侵入することを防止できるから、より
断熱性能にすぐれた断熱配管を製造可能な断熱配管の製
造方法を提供することができた。As described above, according to the first characteristic means of the method for manufacturing a heat insulating pipe of the present invention, the pipe and the heat insulating material are covered with the heat insulating material and the heat insulating material in a state in which a gap is not easily formed between the heat insulating material and the heat insulating material. It was possible to provide a method for manufacturing an adiabatic pipe, which can be integrated with the above, and in addition, an adiabatic pipe as a whole can be very easily produced, and an adiabatic pipe with excellent adiabatic performance can be produced with good workability. . Further, according to the second characteristic means of the method for manufacturing a heat insulating pipe of the present invention, the same effect as that of the above first characteristic means can be obtained, and in addition, water can be prevented from entering the heat insulating material. As a result, it was possible to provide a method for manufacturing an adiabatic pipe capable of producing an adiabatic pipe having more excellent adiabatic performance.
【0008】[0008]
【実施例】次に、本発明の実施例を図面に基づいて説明
する。まず、被覆管1を準備する。本実施例において
は、この被覆管1は内径が30mmで、図2(イ)、
(ロ)、(ハ)に示すように、2層のアルミ箔層Aと2
層の断熱ペーパー層Bとを、アルミ箔層Aを外表面部側
に配置した状態で積層したものを筒状に形成して構成し
てある。次に、給湯用銅管2(配管の一例で外径が12
mm)にグラスウール3(断熱材の一例)を巻き付ける。
巻き付け厚さは10mmとして、巻き付け後の外径が被覆
管1の内径よりも大径になるように形成する。そして、
グラスウール3の外表面部に、その周方向複数箇所で、
それぞれステンレス製テープ4(可撓性の帯状体の一例
で巾が20mm厚さが0.12mm)を長手方向に全長にわ
たって沿わせる。その後、被覆管1に挿通可能な長尺体
としての紐5を準備して、テープ4、グラスウール3及
び銅管2を一体に引っ張り操作できるように銅管2の一
端部側で、テープ4とともにグラスウール3を縛り付け
て、この縛り付け部分を被覆管1の内径よりも小径に縮
径させる。次に、紐5を銅管2に挿通させ、テープ4、
グラスウール3及び銅管2を、前記紐5を介して引っ張
りながら、縮径部9側から被覆管1に内嵌させる。なお
紐5は一旦切断して縮径部9近傍でフック11を介して
接続してある。内嵌を完了させたら被覆管1とグラスウ
ール3との間のテープ4を一本ずつを抜きとって、グラ
スウール3を弾性復元させて大径化して、被覆管1内面
に密接させる。Embodiments of the present invention will now be described with reference to the drawings. First, the cladding tube 1 is prepared. In the present embodiment, the cladding tube 1 has an inner diameter of 30 mm, and FIG.
As shown in (b) and (c), two aluminum foil layers A and 2 are used.
The heat-insulating paper layer B, which is a layer, is laminated in a state where the aluminum foil layer A is arranged on the outer surface portion side to form a tubular shape. Next, a copper pipe 2 for hot water supply (an example of the pipe has an outer diameter of 12
mm) with glass wool 3 (an example of heat insulating material).
The winding thickness is 10 mm, and the outer diameter after winding is larger than the inner diameter of the cladding tube 1. And
On the outer surface of the glass wool 3, at a plurality of locations in the circumferential direction,
A stainless steel tape 4 (an example of a flexible strip having a width of 20 mm and a thickness of 0.12 mm) is run along the entire length in the longitudinal direction. After that, a cord 5 as a long body that can be inserted into the covering pipe 1 is prepared, and the tape 4, the glass wool 3 and the copper pipe 2 are integrally pulled together with the tape 4 on one end side of the copper pipe 2 so that the tape 4 can be pulled together. The glass wool 3 is bound, and the bound portion is reduced in diameter to be smaller than the inner diameter of the covering tube 1. Next, the string 5 is inserted into the copper tube 2, and the tape 4,
While pulling the glass wool 3 and the copper tube 2 through the string 5, the glass wool 3 and the copper tube 2 are fitted into the covering tube 1 from the side of the reduced diameter portion 9. The string 5 is once cut and connected via a hook 11 in the vicinity of the reduced diameter portion 9. When the inner fitting is completed, the tapes 4 between the covering tube 1 and the glass wool 3 are removed one by one, and the glass wool 3 is elastically restored to have a large diameter, and is brought into close contact with the inner surface of the covering tube 1.
【0009】次に本発明の第2の実施例を説明する。な
お、各部材の径や厚さ等は上記の第1実施例の場合とほ
ぼ同じである。まず、被覆管1を準備する。この被覆管
1は、第3図(イ)、(ロ)に示すように、ジャバラ状
に形成されたアルミニウム製のフレキシブル管からな
る。次に、給湯用銅管2にグラスウール3を、被覆管1
の内径よりも大径になるまで巻き付ける。そして、グラ
スウール3の外表面部に、ポリエチレン製の防水チュー
ブ12を外嵌してグラスウール3を被覆し、防水チュー
ブ12の外表面部に、その周方向複数箇所で、それぞれ
ポリプロピレン製テープ4(可撓性の帯状体の一例)を
長手方向に全長にわたって沿わせる。その後、紐5を準
備して、テープ4、防水チューブ12、グラスウール3
及び銅管2を一体に引っ張り操作できるように銅管2の
一端部側で、テープ4及び防水チューブ12とともにグ
ラスウール3を縛り付けて、この縛り付け部分を被覆管
1の内径よりも小径に縮径させる。次に、紐5を銅管2
に挿通させ、テープ4、防水チューブ12、グラスウー
ル3及び銅管2を、前記紐5を介して引っ張りながら、
縮径部9側から被覆管1に内嵌させる。なお、テープ4
は被覆管1内に残しておく。Next, a second embodiment of the present invention will be described. The diameter and thickness of each member are almost the same as in the case of the first embodiment. First, the cladding tube 1 is prepared. As shown in FIGS. 3 (a) and 3 (b), the covering pipe 1 is made of a bellows-made flexible pipe made of aluminum. Next, the glass wool 3 is placed on the hot water supply copper tube 2 and the cladding tube 1
Wrap until the diameter is larger than the inner diameter of. Then, the waterproof tube 12 made of polyethylene is fitted on the outer surface of the glass wool 3 to cover the glass wool 3, and the polypropylene tape 4 (permissible) is provided on the outer surface of the waterproof tube 12 at a plurality of positions in the circumferential direction. An example of a flexible strip is provided along the entire length in the longitudinal direction. Then, prepare the string 5, tape 4, waterproof tube 12, glass wool 3
Also, the glass wool 3 is bound together with the tape 4 and the waterproof tube 12 on one end side of the copper tube 2 so that the copper tube 2 can be integrally pulled, and the bound portion is reduced in diameter to be smaller than the inner diameter of the cladding tube 1. . Next, the string 5 and the copper tube 2
While pulling the tape 4, the waterproof tube 12, the glass wool 3 and the copper tube 2 through the string 5,
The cladding tube 1 is internally fitted from the side of the reduced diameter portion 9. In addition, tape 4
Are left in the cladding tube 1.
【0010】〔別実施例〕前記グラスウール3に替え
て、ロックウール、発泡ポリウレタン、発泡ポリエチレ
ン等を用いてもよい。また、前記銅管2は水道管用等の
ものであってもよい。[Other Embodiments] Instead of the glass wool 3, rock wool, polyurethane foam, polyethylene polyethylene or the like may be used. Further, the copper pipe 2 may be for a water pipe or the like.
【0011】前記被覆管1を構成するに、外表面部側か
ら順に、2層のアルミ箔層A、2層のガラスクロス層及
び2層の断熱ペーパーBを配置して積層してもよい。こ
のようにガラスクロス層を設けることで、メカニカルな
ダメージに強い構造にすることができる。In order to form the covering tube 1, two aluminum foil layers A, two glass cloth layers and two heat insulating papers B may be arranged and laminated in this order from the outer surface side. By providing the glass cloth layer in this manner, it is possible to make the structure resistant to mechanical damage.
【0012】図4に示すように、漏斗状の誘導治具6を
使用してもよい。この誘導治具6のテーパー内面部7
は、前記縮径部9を内嵌自在で、そのテーパー内面部7
に、テープ導入孔8を複数設けてある。使用方法は次の
通りである。まず誘導治具6の小径管部10を被覆管1
に内嵌させる。そして、誘導治具6に挿通させた紐5で
前記縮径部9を引っ張り、テープ導入孔8からテープ4
を被覆管1内に導きながら銅管2等を被覆管1に内嵌さ
せる。前記防水チューブ12を熱収縮性のチューブで構
成してもよい。As shown in FIG. 4, a funnel-shaped guide jig 6 may be used. The tapered inner surface portion 7 of the guide jig 6
Is capable of fitting the reduced diameter portion 9 therein, and the tapered inner surface portion 7 thereof.
In addition, a plurality of tape introducing holes 8 are provided. The usage method is as follows. First, the small-diameter pipe portion 10 of the guiding jig 6 is attached to the covering pipe 1
To fit inside. Then, the reduced diameter portion 9 is pulled by the string 5 inserted through the guide jig 6, and the tape 4 is inserted from the tape introduction hole 8 into the tape 4.
The copper tube 2 and the like are fitted into the cladding tube 1 while introducing the above into the cladding tube 1. The waterproof tube 12 may be a heat-shrinkable tube.
【0013】尚、特許請求の範囲の項に図面との対照を
便利にするために符号を記すが、該記入により本発明は
添付図面の構成に限定されるものではない。It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.
【図1】断熱配管の製造方法を示す斜視図FIG. 1 is a perspective view showing a method for manufacturing heat insulating piping.
【図2】(イ) 第1実施例の断熱配管の製造方法を示
す断面図 (ロ) 第1実施例の断熱配管の製造方法を示す断面図 (ハ) 第1実施例の断熱配管の製造方法を示す断面図2 (a) is a cross-sectional view showing a method for manufacturing heat-insulated piping according to the first embodiment (b) a cross-sectional view showing a method for manufacturing heat-insulated piping according to the first embodiment (c) Manufacturing of heat-insulated piping according to the first embodiment Sectional view showing the method
【図3】(イ) 第2実施例の断熱配管の製造方法を示
す断面図 (ロ) 第2実施例の断熱配管の製造方法を示す断面図3 (a) is a cross-sectional view showing a method for manufacturing an adiabatic pipe according to the second embodiment. (B) a sectional view showing a method for manufacturing an adiabatic pipe according to the second embodiment.
【図4】別実施例の斜視図FIG. 4 is a perspective view of another embodiment.
【符号の説明】 1 被覆管 2 配管 3 断熱材 4 帯状体 5 長尺体 9 縮径部 12 防水チューブ[Explanation of symbols] 1 cladding tube 2 piping 3 heat insulating material 4 strip 5 elongated body 9 reduced diameter portion 12 waterproof tube
Claims (2)
前記断熱材(3)を被覆材で覆う断熱配管の製造方法で
あって、 予め、前記被覆材を筒状に形成してなる被覆管(1)を
準備しておき、前記配管(2)に前記断熱材(3)を前
記被覆管(1)よりも大径になるように巻き付け、前記
断熱材(3)の外表面部に、その周方向複数箇所で、そ
れぞれ可撓性の帯状体(4)を長手方向に沿わせ、前記
配管(2)の一端部側で前記帯状体(4)とともに前記
断熱材(3)を前記被覆管(1)よりも小径に縮径さ
せ、前記被覆管(1)に挿通可能な長尺体(5)を準備
して、その一端部を前記縮径させた配管(2)の一端部
側の縮径部(9)に接続し、前記長尺体(5)を前記被
覆管(1)に挿通させて、前記縮径部(9)側から前記
帯状体(4)、前記断熱材(3)及び前記配管(2)
を、一体に前記長尺体(5)を介して引っ張りながら前
記被覆管(1)に内嵌させ、その後、前記被覆管(1)
と前記断熱材(3)との間の前記帯状体(4)を抜きと
る断熱配管の製造方法。1. A heat insulating material (3) is wound around the pipe (2),
A method of manufacturing a heat insulating pipe for covering the heat insulating material (3) with a covering material, comprising preparing a covering pipe (1) formed by forming the covering material into a tubular shape in advance, and applying the covering pipe (2) to the pipe (2). The heat insulating material (3) is wound so as to have a diameter larger than that of the covering pipe (1), and the flexible band-shaped body (in the outer surface portion of the heat insulating material (3) at a plurality of positions in the circumferential direction ( 4) along the longitudinal direction, and at the one end side of the pipe (2), the band-shaped body (4) and the heat insulating material (3) are reduced in diameter to be smaller than that of the coating pipe (1). A long body (5) that can be inserted into (1) is prepared, and one end of the long body is connected to the reduced diameter portion (9) on the one end side of the reduced diameter pipe (2) to obtain the elongated body. (5) is inserted into the covering pipe (1), and the strip (4), the heat insulating material (3), and the pipe (2) are inserted from the side of the reduced diameter portion (9).
While being pulled integrally through the elongated body (5), and fitted inside the covering tube (1), and thereafter, the covering tube (1)
The manufacturing method of the heat insulation piping which extracts the said strip | belt-shaped body (4) between the said heat insulating material (3).
前記断熱材(3)を被覆材で覆う断熱配管の製造方法で
あって、 予め、前記被覆材を筒状に形成してなる被覆管(1)を
準備しておき、前記配管(2)に前記断熱材(3)を前
記被覆管(1)よりも大径になるように巻き付け、前記
配管(2)に巻き付けた状態の前記断熱材(3)に樹脂
製の防水チューブ(12)を外嵌して前記断熱材(3)
を被覆し、前記防水チューブ(12)の外表面部に、そ
の周方向複数箇所で、それぞれ可撓性の帯状体(4)を
長手方向に沿わせ、前記配管(2)の一端部側で前記帯
状体(4)及び前記防水チューブ(12)とともに前記
断熱材(3)を前記被覆管(1)よりも小径に縮径さ
せ、前記被覆管(1)に挿通可能な長尺体(5)を準備
して、その一端部を前記縮径させた配管(2)の一端部
側の縮径部(9)に接続し、前記長尺体(5)を前記被
覆管(1)に挿通させて、前記縮径部(9)側から前記
帯状体(4)、前記防水チューブ(12)、前記断熱材
(3)及び前記配管(2)を、一体に前記長尺体(5)
を介して引っ張りながら前記被覆管(1)に内嵌させる
断熱配管の製造方法。2. A heat insulating material (3) is wound around the pipe (2),
A method of manufacturing a heat insulating pipe for covering the heat insulating material (3) with a covering material, comprising preparing a covering pipe (1) formed by forming the covering material into a tubular shape in advance, and applying the covering pipe (2) to the pipe (2). The heat insulating material (3) is wound so as to have a larger diameter than the covering pipe (1), and a resin waterproof tube (12) is wound around the heat insulating material (3) wound around the pipe (2). Fitted with the heat insulation material (3)
The outer surface of the waterproof tube (12) at a plurality of circumferential positions thereof along the longitudinal direction of flexible strips (4), respectively, at one end of the pipe (2). Along with the band-shaped body (4) and the waterproof tube (12), the heat insulating material (3) is reduced in diameter to be smaller than the covering tube (1), and the long body (5) which can be inserted into the covering tube (1). ) Is prepared, one end thereof is connected to the reduced diameter portion (9) on the one end side of the reduced diameter pipe (2), and the elongated body (5) is inserted into the covering pipe (1). Then, the strip body (4), the waterproof tube (12), the heat insulating material (3), and the pipe (2) are integrated into the elongated body (5) from the reduced diameter portion (9) side.
A method for manufacturing a heat insulating pipe, wherein the heat insulating pipe is fitted inside the covering pipe (1) while being pulled through.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5319457A JP2531929B2 (en) | 1993-12-20 | 1993-12-20 | Insulation pipe manufacturing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5319457A JP2531929B2 (en) | 1993-12-20 | 1993-12-20 | Insulation pipe manufacturing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH07174291A JPH07174291A (en) | 1995-07-11 |
JP2531929B2 true JP2531929B2 (en) | 1996-09-04 |
Family
ID=18110419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5319457A Expired - Lifetime JP2531929B2 (en) | 1993-12-20 | 1993-12-20 | Insulation pipe manufacturing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2531929B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01176651U (en) * | 1988-06-04 | 1989-12-15 | ||
JP2595776Y2 (en) * | 1993-12-28 | 1999-06-02 | 古河電気工業株式会社 | Non-combustible coated conduit |
CN115416203A (en) * | 2022-09-23 | 2022-12-02 | 江苏贝尔机械有限公司 | Adjustable pipeline centering cladding structure for flexible heat-insulation pipeline |
-
1993
- 1993-12-20 JP JP5319457A patent/JP2531929B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH07174291A (en) | 1995-07-11 |
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