JPH0518541Y2 - - Google Patents
Info
- Publication number
- JPH0518541Y2 JPH0518541Y2 JP16684287U JP16684287U JPH0518541Y2 JP H0518541 Y2 JPH0518541 Y2 JP H0518541Y2 JP 16684287 U JP16684287 U JP 16684287U JP 16684287 U JP16684287 U JP 16684287U JP H0518541 Y2 JPH0518541 Y2 JP H0518541Y2
- Authority
- JP
- Japan
- Prior art keywords
- heat insulating
- stainless steel
- urethane
- insulating support
- pipe
- 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
- 229910052801 chlorine Inorganic materials 0.000 claims description 23
- 239000000460 chlorine Substances 0.000 claims description 23
- 229910001220 stainless steel Inorganic materials 0.000 claims description 22
- 239000010935 stainless steel Substances 0.000 claims description 22
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 19
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 230000002745 absorbent Effects 0.000 claims description 7
- 239000002250 absorbent Substances 0.000 claims description 7
- 239000011810 insulating material Substances 0.000 claims description 7
- -1 Chlorine ions Chemical class 0.000 description 15
- 239000012774 insulation material Substances 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000005336 cracking Methods 0.000 description 4
- 150000007524 organic acids Chemical class 0.000 description 4
- 235000005985 organic acids Nutrition 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 235000019353 potassium silicate Nutrition 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- KIQKWYUGPPFMBV-UHFFFAOYSA-N diisocyanatomethane Chemical compound O=C=NCN=C=O KIQKWYUGPPFMBV-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000004619 high density foam Substances 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Landscapes
- Supports For Pipes And Cables (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
この考案はパイプ接触部と支持材の合わせ部に
塩素吸収剤層とフイルム層を設けたステンレスパ
イプの断熱支持具に係るものである。[Detailed Description of the Invention] Industrial Field of Application This invention relates to a heat insulating support for stainless steel pipes in which a chlorine absorbent layer and a film layer are provided at the joint between the pipe contacting part and the supporting material.
従来の技術
従来のステンレスパイプの断熱支持具としては
通常の炭素鋼パイプに用いられている半円形のパ
イプ接触部と支持材の合わせ部とを設けたウレタ
ン系の高密度発泡断熱材がそのまま使用されてい
る。Conventional technology As a conventional heat insulating support for stainless steel pipes, the urethane-based high-density foam heat insulating material used for ordinary carbon steel pipes, which has a semicircular pipe contact area and a support material joint, is used as is. has been done.
考案が解決しようとする問題点
この従来のウレタン系断熱支持具ではステンレ
スパイプの中に高温物体、例えば120℃位の物体
を通すと、ウレタン系断熱支持具は熱分解される
ためにウレタン系断熱支持具の素原料物質である
難燃剤や粗製（クルード）メチレン・ジ・イソシ
アネート（クルードMD）から塩素イオンや有
機酸が生成される。また水が共存する場合には80
℃位においても加水分解されるために同様に塩素
イオンや有機酸が生成される。Problems that the invention aims to solve: With this conventional urethane-based heat-insulating support, when a high-temperature object, such as an object at about 120°C, is passed through the stainless steel pipe, the urethane-based heat-insulating support is thermally decomposed, so the urethane-based heat-insulating support is Chlorine ions and organic acids are generated from flame retardants and crude methylene diisocyanate (crude MD), which are the raw materials for supports. Also, if water coexists, 80
Because it is hydrolyzed even at temperatures around 30°F, chlorine ions and organic acids are similarly produced.
これらの生成物、特に塩素イオンは微量であつ
てもオーステナイト系ステンレスパイプに応力腐
食割れを生じさせる危険性があるという欠点があ
つた。 These products, especially chlorine ions, have the disadvantage that even a small amount may cause stress corrosion cracking in austenitic stainless steel pipes.
この考案は従来のステンレスパイプの断熱支持
具が有する前記の欠点を解消し、塩素イオンや有
機酸の生成を防ぐとともに万一生成した塩素イオ
ンを吸収することによりステンレスパイプの応力
腐食割れを防ぐことなどを目的としたものであ
る。 This invention eliminates the above-mentioned drawbacks of conventional stainless steel pipe heat insulating supports, prevents the generation of chlorine ions and organic acids, and prevents stress corrosion cracking of stainless steel pipes by absorbing chlorine ions that are generated. It is intended for such purposes.
問題点を解決するための手段
この考案のステンレスパイプの断熱支持具はウ
レタン系断熱材のパイプ接触部と支持体の合わせ
部に水ガラスなどの塩素吸収剤層とポリプロピレ
ン、ポリエステル、ナイロンなどのフイルム層を
設けて、実際に使用する時にステンレスパイプと
ウレタン系断熱材とが直接接触することなく、両
者の間に塩素吸収剤層とフイルム層を介在させた
ものである。Means to solve the problem The insulating support for stainless steel pipes of this invention has a layer of chlorine absorber such as water glass and a film of polypropylene, polyester, nylon, etc. at the joint between the pipe contacting part of the urethane-based insulating material and the support. The chlorine absorbent layer and the film layer are interposed between the stainless steel pipe and the urethane heat insulating material so that they do not come into direct contact with each other during actual use.
作 用
この考案のステンレスパイプの断熱支持具はウ
レタン系断熱材とステンレスパイプとの間に、塩
素吸収剤層とフイルム層を、介在した状態で使用
されるのでウレタン系断熱剤とステンレスパイプ
とは直接接触しないためにウレタン系断熱材がほ
とんど熱分解されずに熱分解による塩素イオンや
有機酸の生成がほとんど行われないし、また介在
するフイルム層によりステンレスパイプに結露し
た水がウレタン系断熱材側に侵入するのを防ぐか
らウレタン系断熱材の加水分解が生じない。万一
水がフイルム層以外の所からウレタン系断熱材に
侵入し、加水分解して塩素イオンが生成されたと
しても塩素イオンは塩素吸収剤層に補足吸収され
るから、塩素イオンによるステンレスパイプの応
力腐食割れを防ぐ。Function The stainless steel pipe heat insulating support of this invention is used with a chlorine absorber layer and a film layer interposed between the urethane heat insulating material and the stainless steel pipe, so the urethane heat insulating material and the stainless steel pipe are different. Because there is no direct contact, the urethane insulation material is hardly thermally decomposed, and almost no chlorine ions or organic acids are generated due to thermal decomposition, and the intervening film layer prevents water condensing on the stainless steel pipe from being absorbed by the urethane insulation material. This prevents the urethane-based insulation material from being hydrolyzed. Even if water enters the urethane insulation material from a place other than the film layer and hydrolyzes to produce chlorine ions, the chlorine ions will be supplemented and absorbed by the chlorine absorbent layer. Prevents stress corrosion cracking.
実施例
次にこの考案のステンレスパイプの断熱支持具
を実施例について図面とともに説明する。Embodiments Next, embodiments of the heat insulating support for stainless steel pipes of this invention will be described with reference to the drawings.
半円形のウレタン系断熱材１の内側にパイプ接
触部２を設け、このパイプ接触部２の両側に支持
材の合わせ部３，３を設ける。このパイプ接触部
２と支持材の合わせ部３，３の第１図々面におけ
る上側に水ガラスの塩素吸収剤層４をそれぞれ設
け、更にその上側にポリプロピレンのフイルム層
５を一体にそれぞれ設けた半円形のステンレスパ
イプの断熱支持具６である。 A pipe contacting part 2 is provided inside a semicircular urethane-based heat insulating material 1, and mating parts 3, 3 of supporting materials are provided on both sides of this pipe contacting part 2. A water glass chlorine absorbent layer 4 was provided on the upper side of the pipe contact portion 2 and the joint portions 3, 3 of the support material in the first drawing plane, and a polypropylene film layer 5 was integrally provided on the upper side thereof. This is a heat insulating support 6 made of semicircular stainless steel pipe.
使用する際は第２図第３図に図示のように、半
円形のステンレスパイプの断熱支持具６を２個用
い、かつパツキング７を用いてオーステナイト系
ステンレスパイプ８を断熱し、支持して使用す
る。 When in use, as shown in Figs. 2 and 3, two semicircular stainless steel pipe insulating supports 6 are used, and a packing 7 is used to insulate and support the austenitic stainless steel pipe 8. do.
第４図に図示したステンレスパイプの断熱支持
具１１は形状が１部異なるので１方は半円形であ
るとともに支持材の合わせ部１３に凹凸を設けた
ステンレスパイプの断熱支持具１２であり、他方
は下側に脚部１５を有するとともに支持体の合わ
せ部１６に前記のものとは対称的な凹凸を設けた
ステンレスパイプの断熱支持具１４である。 The heat insulating supports 11 for stainless steel pipes shown in FIG. 4 are different in shape, so one is semicircular and the heat insulating supports 12 for stainless steel pipes are provided with irregularities on the joining part 13 of the support material, and the other is a heat insulating support 12 for stainless steel pipes. This is a heat insulating support 14 made of a stainless steel pipe which has legs 15 on the lower side and has unevenness symmetrical to the above-mentioned one on the mating part 16 of the support.
考案の効果
この考案のステンレスパイプの断熱支持具はウ
レタン系断熱支持具のパイプ接触部と支持材の合
わせ部に塩素吸収剤層とフイルム層を設けたか
ら、実際に使用するとウレタン系断熱材とステン
レスパイプとは直接接触しないためにウレタン系
断熱材がほとんど熱分解されずに熱分解による塩
素イオンなどがほとんど生成されないし、またフ
イルム層を設けたためにステンレスパイプに結露
した水がウレタン系断熱材側に侵入するのを防ぐ
のでウレタン系断熱材が加水分解されて塩素イオ
ンなどの生成されるのをほとんど防ぐことができ
る。万一微量の塩素イオンが生成されたとしても
塩素吸収剤層を設けたために塩素イオンはこの塩
素吸収剤層に補足吸収されるので塩素イオンによ
るステンレスパイプの応力腐食割れを防ぐことが
できる。Effects of the invention The heat insulating support for stainless steel pipes of this invention has a chlorine absorber layer and a film layer at the pipe contact part of the urethane heat insulating support and the joining part of the support material. Because it does not come into direct contact with the pipe, the urethane insulation material is hardly thermally decomposed and almost no chlorine ions are generated due to thermal decomposition.Also, because the film layer is provided, water that condenses on the stainless steel pipe is absorbed by the urethane insulation material. This prevents the urethane-based insulation material from being hydrolyzed and generating chlorine ions and the like. Even if a small amount of chlorine ions are generated, the chlorine absorbent layer will supplementally absorb the chlorine ions, thereby preventing stress corrosion cracking of the stainless steel pipe due to chlorine ions.
第１図は本考案品の正面図、第２図は使用時の
斜視図、第３図は同じく断面図、第４図は別の本
考案品の断面図である。
１はウレタン系断熱材、２はパイプ接触部、３
は支持体の合わせ部、４は塩素吸収剤層、５はフ
イルム層、６は断熱支持具。
FIG. 1 is a front view of the product of the present invention, FIG. 2 is a perspective view during use, FIG. 3 is a sectional view of the same, and FIG. 4 is a sectional view of another product of the present invention. 1 is urethane insulation material, 2 is pipe contact part, 3
4 is a chlorine absorbent layer, 5 is a film layer, and 6 is a heat insulating support.
Claims (1)
るウレタン系断熱材のパイプの断熱支持具におい
て、該断熱支持具のパイプ接触部と支持材の合わ
せ部に塩素吸収剤層とフイルム層を設けたことを
特徴とするステンレスパイプの断熱支持具。 In a heat insulating support for a pipe made of urethane-based heat insulating material, which is provided with a pipe contacting part and a joining part of the supporting material, a chlorine absorbent layer and a film layer are provided at the pipe contacting part and the joining part of the supporting material of the heat insulating support. A heat insulating support for stainless steel pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16684287U JPH0518541Y2 (en) | 1987-11-02 | 1987-11-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16684287U JPH0518541Y2 (en) | 1987-11-02 | 1987-11-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0171287U JPH0171287U (en) | 1989-05-12 |
| JPH0518541Y2 true JPH0518541Y2 (en) | 1993-05-17 |
Family
ID=31454590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16684287U Expired - Lifetime JPH0518541Y2 (en) | 1987-11-02 | 1987-11-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0518541Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002048295A (en) * | 2000-08-03 | 2002-02-15 | Inoac Corp | Piping cover member |
-
1987
- 1987-11-02 JP JP16684287U patent/JPH0518541Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0171287U (en) | 1989-05-12 |
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