JPS5947870B2 - pipe heater - Google Patents
pipe heaterInfo
- Publication number
- JPS5947870B2 JPS5947870B2 JP9828376A JP9828376A JPS5947870B2 JP S5947870 B2 JPS5947870 B2 JP S5947870B2 JP 9828376 A JP9828376 A JP 9828376A JP 9828376 A JP9828376 A JP 9828376A JP S5947870 B2 JPS5947870 B2 JP S5947870B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe heater
- pipe
- repellent
- magnesia powder
- magnesia
- 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
Links
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 38
- 239000000843 powder Substances 0.000 claims description 21
- 239000000395 magnesium oxide Substances 0.000 claims description 19
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 239000005871 repellent Substances 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 229920002545 silicone oil Polymers 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 4
- 229920001296 polysiloxane Polymers 0.000 description 4
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002940 repellent Effects 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 230000003075 superhydrophobic effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Description
【発明の詳細な説明】
本発明は、耐熱充填電気絶縁材料としてそれ自体超撥水
性を有するマグネシヤ粉を用いてなるパイプヒーターに
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pipe heater using magnesia powder, which itself has superhydrophobic properties, as a heat-resistant filling electrical insulating material.
耐熱充填電気絶縁材料としてマグネシヤを用いる従来の
パイプヒーターは、マグネシヤの吸湿あるいは湿気の吸
着によつて絶縁劣化を起していた。Conventional pipe heaters that use magnesia as a heat-resistant filling electrical insulating material have suffered from insulation deterioration due to moisture absorption or adsorption of moisture by magnesia.
そのため防湿処置として端末部に於いてシリコーンゴム
又は合成樹脂によつて防湿封をし絶恵劣化を防上するよ
うにしたパイプヒーターが考えられたが、このように防
湿封剤を用いても確実な絶縁劣化防止をはかり得ず、又
他の方法として有機質シリコーンをマグネシヤに混合し
焼成等の処理をしたパイプヒーターの製法も考えられた
がこのパイプヒーターは加熱によつて焼成しなければパ
イプヒーターとしての性能を充分に有することができず
、製作に手数を要する欠点があつｚ本発明は、９９、８
％以上の純ＳｉＯ２である蒸散シリカ基から誘導された
超撥水性シリカ粉末（以下単にシリカ粉末と称する）（
例えば米国タルコ社製タルノツクス、米国カボツト社製
シラノツクス）をシリコーン・オイルを媒体としてマグ
ネシヤ粉のまわりに被覆することによつてそれ自体に超
撥水性をもたせたマグネシヤ粉を、耐熱充填電気絶縁材
料として発熱線のまわりに充填することに基づいてなさ
れたものである。Therefore, as a moisture-proof measure, a pipe heater was considered in which the terminal part was sealed with moisture-proof silicone rubber or synthetic resin to prevent the deterioration. Another method of manufacturing a pipe heater was to mix organic silicone with magnesia and perform a firing process, but this pipe heater cannot be used unless it is fired by heating. The present invention has the disadvantage that it cannot have sufficient performance as a 99,8
% or more of pure SiO2 (hereinafter simply referred to as silica powder) (
For example, magnesia powder that has been made super water repellent by coating magnesia powder with silicone oil as a medium (for example, Talnox manufactured by Talco, Inc., Cyranox manufactured by Kabot Inc., USA) can be used as a heat-resistant filled electrical insulating material. This is based on filling the area around the heating wire.
本発明の実施例を次に説明する。Examples of the present invention will now be described.
通常パイプヒーターに使用する電融マグネシヤ粉に、重
量比で０．１〜３ｑｈのシリコーン・オイルをトルエン
等の揮発性の高い溶剤により稀薄化して混合し自然乾燥
する。0.1 to 3 qh of silicone oil by weight is diluted with a highly volatile solvent such as toluene, mixed with electrofused magnesia powder normally used for pipe heaters, and then air dried.
更に重量比で０．１〜３％の超撥水性シリカ粉末をアル
コール等の溶剤で稀薄化しこれを混合し自然乾燥する。
第１図はこのマグネシヤ粉の断面図で、図中１は超撥水
性マグネシヤ机 ２は通常のマグネシヤ粉、３は被覆し
たシリコーン−オイル、４は更に被覆した超撥水性シリ
カ粉末である。このようにマグネシヤ粉のまわりを二重
に被覆することによつて完全に撥水性を有するマグネシ
ヤ粉にすることができる。Further, 0.1 to 3% by weight of super water-repellent silica powder is diluted with a solvent such as alcohol, mixed, and air-dried.
FIG. 1 is a cross-sectional view of this magnesia powder, in which 1 is super water-repellent magnesia powder, 2 is normal magnesia powder, 3 is coated silicone oil, and 4 is further coated super water-repellent silica powder. By coating the magnesia powder twice in this way, it is possible to make the magnesia powder completely water repellent.
第２図は本発明のパイプヒーターの一例を示す断面図で
ある。FIG. 2 is a sectional view showing an example of the pipe heater of the present invention.
先に述べた如く二重被覆処理をした超撥水性マダネシヤ
粉１を、金属パイプ５の中央部に位置するように配置し
た発熱源６のまわりに充填し、金属パイプ５を充填され
た内部のマグネシヤ粉の充填密度を上げるために減径す
る。As mentioned above, the super water-repellent madanesia powder 1 which has been double coated is filled around the heat generating source 6 located in the center of the metal pipe 5, and the metal pipe 5 is filled inside the filled interior. Reduce the diameter to increase the packing density of magnesia powder.
図中Ｔはターミナルを示す。このようにして作られた本
発明のパイプヒーターは、吸湿せず常に高い絶縁抵抗を
有する。T in the figure indicates a terminal. The pipe heater of the present invention made in this manner does not absorb moisture and always has high insulation resistance.
第３図Ａ、Ｂ、Ｃ、Ｄは、本発明のパイプヒーターと従
来の有機シリコーンを含有するヒーター（焼成等の処理
をしないもの）との絶縁抵抗を、ヒーターパイプ表面温
度６００℃，３００℃，２００℃，１００℃の場合に夫
々対比して示したグラフであり、従来の有機シリコーン
を含有するヒーターは初期絶縁抵抗が本発明のパイプヒ
ーターに比し著しく低く、又この傾向は比較的低温度域
（パイプ表面温度の低い場合）において強いことが示さ
れている。叙上のように本発明のパイプヒーターは、常
に高い絶縁抵抗を有し、而も製造上に訃いても端末部に
防湿封を施すことを必要とせず且つ焼成の必要がないの
で製造工程・費用を短縮し得る、等種種の効果を発揮す
る。Figures A, B, C, and D show the insulation resistance between the pipe heater of the present invention and a conventional heater containing organic silicone (not subjected to firing or other treatments) at heater pipe surface temperatures of 600°C and 300°C. , 200°C, and 100°C, showing that the conventional heater containing organic silicone has a significantly lower initial insulation resistance than the pipe heater of the present invention, and this tendency is relatively low. It has been shown that it is strong in the temperature range (when the pipe surface temperature is low). As mentioned above, the pipe heater of the present invention always has a high insulation resistance, and even if there is a manufacturing problem, there is no need to apply a moisture-proof seal to the terminal part, and there is no need for firing, so the manufacturing process and It has various effects that can reduce costs.
第１図は本発明のパイプヒーターに用いる超撥水性マグ
ネシア粉の構成を表わす断面図、第２図は本発明のパイ
プヒーターの一例を示す断面図、第３図Ａ，Ｂ，Ｃ，Ｄ
は本発明のパイプヒーターと従来の有機シリコーン含有
マグネシアを電気絶縁材料として用いたパイプヒータ一
との絶縁抵抗を比咬したグラフである。
１・・・・・噸撥水性マグネシア粉、２・・・・・・通
常のマグネシア粉、３・・・・・・被覆したシリコーン
・オイル、４・・・・・・超撥水性シリカ粉末 ５・・
・・・金属パイプ、６・・・・・・発熱源、７・・・・
・・ターミナル。Fig. 1 is a cross-sectional view showing the composition of the super-hydrophobic magnesia powder used in the pipe heater of the present invention, Fig. 2 is a cross-sectional view showing an example of the pipe heater of the present invention, and Fig. 3 A, B, C, D.
is a graph comparing the insulation resistances of the pipe heater of the present invention and a conventional pipe heater using organic silicone-containing magnesia as an electrical insulating material. 1...Water-repellent magnesia powder, 2...Normal magnesia powder, 3...Coated silicone oil, 4...Super water-repellent silica powder 5・・・
・・・Metal pipe, 6... Heat source, 7...
··Terminal.
Claims (1)
る蒸散シリカ基から誘導された超撥水性を有するシリカ
粉末をシリコーン・オイルを媒体として混合して得られ
る超撥水性マグネシヤ粉を、金属製パイプの中央部に位
置するようにした発熱源のまわりに充填してなることを
特徴とするパイプヒーター。1. Super water-repellent magnesia powder obtained by mixing magnesia powder with super-water-repellent silica powder derived from evaporated silica groups, which is 99.8% or more pure SiO_2, using silicone oil as a medium, was added to a metal pipe. A pipe heater characterized by being filled around a heat generating source located in the center of the pipe heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9828376A JPS5947870B2 (en) | 1976-08-18 | 1976-08-18 | pipe heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9828376A JPS5947870B2 (en) | 1976-08-18 | 1976-08-18 | pipe heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5324145A JPS5324145A (en) | 1978-03-06 |
| JPS5947870B2 true JPS5947870B2 (en) | 1984-11-21 |
Family
ID=14215591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9828376A Expired JPS5947870B2 (en) | 1976-08-18 | 1976-08-18 | pipe heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5947870B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200026281A (en) | 2017-07-25 | 2020-03-10 | 가부시키가이샤 데라오카 세이사쿠쇼 | Adhesive tape |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57158986A (en) * | 1981-03-26 | 1982-09-30 | Nippon Dennetsu Kk | Method of producing sheathed heater |
| JPS57158983A (en) * | 1981-03-26 | 1982-09-30 | Nippon Dennetsu Kk | Method of producing sheathed heater |
| JPS57158985A (en) * | 1981-03-26 | 1982-09-30 | Nippon Dennetsu Kk | Method of producing sheathed heater |
-
1976
- 1976-08-18 JP JP9828376A patent/JPS5947870B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200026281A (en) | 2017-07-25 | 2020-03-10 | 가부시키가이샤 데라오카 세이사쿠쇼 | Adhesive tape |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5324145A (en) | 1978-03-06 |
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