JPS5831724A - Heat-insulating piping and manufacture of the same - Google Patents
Heat-insulating piping and manufacture of the sameInfo
- Publication number
- JPS5831724A JPS5831724A JP56131182A JP13118281A JPS5831724A JP S5831724 A JPS5831724 A JP S5831724A JP 56131182 A JP56131182 A JP 56131182A JP 13118281 A JP13118281 A JP 13118281A JP S5831724 A JPS5831724 A JP S5831724A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- piping
- resin
- hot air
- thin 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/34—Auxiliary operations
- B29C44/36—Feeding the material to be shaped
- B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
- B29C44/385—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using manifolds or channels directing the flow in the mould
- B29C44/386—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using manifolds or channels directing the flow in the mould using a movable, elongate nozzle, e.g. to reach deep into the mould
Landscapes
- Thermal Insulation (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
この発明は、冷凍サイクル及び太陽熱利用循環サイクル
における配管の断熱化及びその製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to insulating piping in a refrigeration cycle and a solar heat circulation cycle, and a method for manufacturing the same.
従来、この種の配管の断熱は配管の回シを断熱材(発泡
製品)で覆う事によりおζなわれた。Conventionally, this type of piping was insulated by covering the piping tube with a heat insulating material (foamed product).
この場合配管と断熱材との密着性が悪いと大きな断熱ロ
スをまねく。しかも1作業性が悪いという欠点を有して
いた。In this case, poor adhesion between the piping and the insulation material will result in a large loss of insulation. Moreover, it had the disadvantage of poor workability.
この発明は、システム配管の断熱性を改善すると共に配
管作業性を良くした断熱パイプを容易にかつ、安価に製
造する事を目的としている。The object of the present invention is to easily and inexpensively manufacture an insulated pipe that improves the heat insulation properties of system piping and improves piping workability.
この発明によるとパイプを図面に基づいて説明すると、
第1図に示すように配管パイプAの内・外壁面上に発泡
プラスチック層Bを形成する。発泡剤としては配管中を
作動する媒体と同じものが望ましい。According to this invention, the pipe is explained based on the drawing.
As shown in FIG. 1, a foamed plastic layer B is formed on the inner and outer wall surfaces of the plumbing pipe A. The blowing agent is preferably the same as the medium operating in the piping.
第2図は本発明を実施するために用いられる装置の縦断
面図である。FIG. 2 is a longitudinal sectional view of the apparatus used to carry out the invention.
円筒状のパイプAの内側に吹付は細管Cを挿入する。こ
の細管Cにはその管壁を貫通する孔が1゜2が2つ設け
られておりa方向から圧送された発泡樹脂のゲル状物質
3はこの孔2からパイプ内壁に向かって噴出する。この
とき、パイプAを回転すればゲル状物質3は内壁に均一
に付着する。次に、細管Cを軸方向(図中矢印4+)に
移動させる。For spraying, a thin tube C is inserted inside the cylindrical pipe A. This thin tube C is provided with two holes of 1.degree. 2 that penetrate through the tube wall, and the foamed resin gel material 3 pumped from the direction a is ejected from the holes 2 toward the inner wall of the pipe. At this time, if the pipe A is rotated, the gel-like substance 3 will uniformly adhere to the inner wall. Next, the thin tube C is moved in the axial direction (arrow 4+ in the figure).
その時もう一方の孔1より温風を吹出し加熱発泡成形を
同時に行なう。より厚めの発泡層が必要な場合は以上の
操作を繰り返すことにより達成される。また、パイプ外
側についても上記と同様に行なう。At this time, hot air is blown out from the other hole 1 to perform heating and foaming molding at the same time. If a thicker foam layer is required, this can be achieved by repeating the above operations. The same procedure as above is also carried out for the outside of the pipe.
なお、中空細管C中に注入される樹脂ゲル状物質は適度
な粘性に予め調整しておく必要があるが。Note that the resin gel-like substance injected into the hollow tube C needs to be adjusted in advance to have an appropriate viscosity.
これは、予熱ヒータ4の温度制御により容易に実現でき
る。This can be easily achieved by controlling the temperature of the preheater 4.
この発明は以上説明したように配管パイプの内・・外壁
に発泡樹脂層を設けた事により断熱性を改善すると共に
その断熱パイプを容易に、かつ、安価に製造する効果が
ある。As explained above, this invention has the effect of improving heat insulation by providing a foamed resin layer on the inner and outer walls of a piping pipe, and making it possible to easily and inexpensively manufacture the heat insulating pipe.
【図面の簡単な説明】
法を示す断面図である。
A・・・・・・配管パイプ、B・・・・・・発泡樹脂層
、C・・・・発泡樹脂ゲル吹出し孔、3・・・・・・発
泡樹脂ゲル状物質、4・・・・・・予熱ヒーター。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing the method. A... Piping pipe, B... Foamed resin layer, C... Foamed resin gel outlet, 3... Foamed resin gel material, 4...・Preheating heater.
Claims (2)
断熱配管。(1) Insulated piping with a foamed plastic layer formed on the inside and outside walls of the piping.
複数の噴出孔を有する中空細管を挿入し、前記パイプを
回転させると共K、細管内に発泡樹脂のゲル状物質を加
圧注入し、前記噴出孔の一方より噴出させて前記パイプ
内壁に付着させ、かつ前記パイプ、及び前記中空細管を
相対的に軸方向に移動させて樹脂層を形成し、同時に、
別の噴出孔より温風を吹き出すことKより発泡成形を行
ない。 パイプ外側には上記と同じ中空細管をパイプ外側にもう
け以下同様に処理する断熱配管の製造方法。(2) A hollow thin tube with multiple injection holes on the side is inserted into the inside of a vertically held plumbing pipe, and as the pipe is rotated, a gel-like substance of foamed resin is added into the thin tube. The resin is injected under pressure and ejected from one of the ejection holes to adhere to the inner wall of the pipe, and the pipe and the hollow tube are relatively moved in the axial direction to form a resin layer, and at the same time,
Foam molding is performed by blowing hot air out of another blowing hole. A method for manufacturing insulated piping, in which a hollow thin tube similar to that described above is provided on the outside of the pipe, and the following steps are performed in the same manner.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56131182A JPS5831724A (en) | 1981-08-20 | 1981-08-20 | Heat-insulating piping and manufacture of the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56131182A JPS5831724A (en) | 1981-08-20 | 1981-08-20 | Heat-insulating piping and manufacture of the same |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5831724A true JPS5831724A (en) | 1983-02-24 |
Family
ID=15051926
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56131182A Pending JPS5831724A (en) | 1981-08-20 | 1981-08-20 | Heat-insulating piping and manufacture of the same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5831724A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06269527A (en) * | 1993-03-17 | 1994-09-27 | Asics Corp | Metal bat and manufacture thereof |
JPH06269526A (en) * | 1993-03-17 | 1994-09-27 | Asics Corp | Metal bat and manufacture thereof |
US5470515A (en) * | 1991-06-05 | 1995-11-28 | Bayer Aktiengesellschaft | Rotational molding process for insulating pipes |
CN111531777A (en) * | 2020-05-07 | 2020-08-14 | 叶宁 | Manufacturing and processing method of heat preservation layer of heat preservation pipe |
-
1981
- 1981-08-20 JP JP56131182A patent/JPS5831724A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5470515A (en) * | 1991-06-05 | 1995-11-28 | Bayer Aktiengesellschaft | Rotational molding process for insulating pipes |
JPH06269527A (en) * | 1993-03-17 | 1994-09-27 | Asics Corp | Metal bat and manufacture thereof |
JPH06269526A (en) * | 1993-03-17 | 1994-09-27 | Asics Corp | Metal bat and manufacture thereof |
CN111531777A (en) * | 2020-05-07 | 2020-08-14 | 叶宁 | Manufacturing and processing method of heat preservation layer of heat preservation pipe |
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