JPH0243108Y2 - - Google Patents
Info
- Publication number
- JPH0243108Y2 JPH0243108Y2 JP16693683U JP16693683U JPH0243108Y2 JP H0243108 Y2 JPH0243108 Y2 JP H0243108Y2 JP 16693683 U JP16693683 U JP 16693683U JP 16693683 U JP16693683 U JP 16693683U JP H0243108 Y2 JPH0243108 Y2 JP H0243108Y2
- Authority
- JP
- Japan
- Prior art keywords
- sheath heater
- container
- insulating
- metal
- metal container
- 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
- 239000002184 metal Substances 0.000 claims description 37
- 238000001816 cooling Methods 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 7
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 16
- 230000007797 corrosion Effects 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 239000004809 Teflon Substances 0.000 description 6
- 229920006362 Teflon® Polymers 0.000 description 6
- 238000009413 insulation Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
Description
【考案の詳細な説明】
本考案は容器内の液体を加熱する際に用いる絶
縁用シースヒータに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an insulating sheath heater used for heating liquid in a container.
従来のネジ付きシースヒータは容器内の液体を
加熱する場合、上記シースヒータのネジ止め部を
直接容器の取付け部に固定していたため、上記容
器が金属製の場合シースヒータと容器とが絶縁さ
れていなかつた。このため、容器内の液体が通電
性及び腐食性を有するものにあつては容器とシー
スヒータの金属製外皮とが電気的に接触し、シー
スヒータの外皮が上記容器より電位的に卑な金属
で形成されていると、シースヒータの外皮が電気
的腐食を受け、シースヒータの寿命が著しく短か
くなるという欠点があつた。 When conventional threaded sheath heaters heat liquid in a container, the screwed part of the sheath heater was directly fixed to the mounting part of the container, so if the container was made of metal, the sheath heater and the container were not insulated. . For this reason, if the liquid in the container is electrically conductive and corrosive, the container and the metal outer skin of the sheath heater come into electrical contact, and the outer skin of the sheath heater is made of a metal that has a lower potential than the container. If so, the outer skin of the sheath heater would be subject to electrical corrosion, resulting in a disadvantage that the life of the sheath heater would be significantly shortened.
また、従来のシースヒータを金属試験片内に埋
込み加熱源として、金属製容器内の通電性を有す
る腐食溶液中で腐食試験を実施する場合、シース
ヒータと容器とが接触していると、腐食試験に於
いて金属製容器との電気化学的腐食が発生し、正
確な腐食試験ができないという欠点があつた。 In addition, when conducting a corrosion test in a corrosive solution with electrical conductivity in a metal container using a conventional sheath heater embedded in a metal test piece as a heating source, if the sheath heater and the container are in contact, the corrosion test will be interrupted. However, electrochemical corrosion with the metal container occurred, making it impossible to conduct accurate corrosion tests.
また、従来においては金属製容器とシースヒー
タとを絶縁する場合には金属製容器の取付部と、
シースヒータのネジ部との間に絶縁性パツキンを
介して取付けて使用していたものもあつたが、こ
の場合、例えば耐熱性が良く絶縁性のテフロンを
使用しても、シースヒータのネジ部の温度が300
℃以上になれば、テフロンが溶けてしまいシース
ヒータが金属製容器からはずれ、容器の密閉度が
保たれないという欠点があつた。 Conventionally, when insulating a metal container and a sheath heater, the attachment part of the metal container,
Some heaters were installed with an insulating gasket between them and the threaded part of the sheath heater, but in this case, even if Teflon, which has good heat resistance and insulating properties, is used, is 300
If the temperature exceeds ℃, the Teflon melts, causing the sheath heater to separate from the metal container, which has the disadvantage that the container cannot be kept airtight.
本考案は上記の欠点を解消するためになされた
ものであり、その目的はシースヒータを効率よく
使用することができ、シースヒータを加熱源とし
た腐食試験を正確に実施することのできる、絶縁
用シースヒータを提供するにある。本考案の絶緑
用シースヒータは、通電性液体を貯溜した金属製
容器と、この金属製容器内に挿入されるシースヒ
ータとを具備してなり、前記金属製容器に絶縁性
パツキンを介してボルト固定されるシースヒータ
のフランジ部に水冷室を設けるとともに、前記金
属製容器に設けられたシースヒータ挿入用の開口
部をシースヒータの径よりも大きく設け、かつ前
記絶縁性パツキンをシースヒータの外表面から所
定距離だけ離して設けたものである。 The present invention was made to eliminate the above-mentioned drawbacks, and its purpose is to provide an insulating sheath heater that can efficiently use the sheath heater and accurately conduct corrosion tests using the sheath heater as the heating source. is to provide. The sheathed heater for never-greening of the present invention comprises a metal container storing an electrically conductive liquid and a sheathed heater inserted into the metal container, and is bolted to the metal container via an insulating packing. A water cooling chamber is provided in the flange of the sheath heater, and an opening provided in the metal container for inserting the sheath heater is provided larger than the diameter of the sheath heater, and the insulating gasket is disposed at a predetermined distance from the outer surface of the sheath heater. It is set apart.
以下、図面を参照して本考案の実施例を説明す
る。 Embodiments of the present invention will be described below with reference to the drawings.
図は本考案の一実施例を示す図で、図中１は金
属製の密閉容器（例えばオートクレーブ）であ
る。この密閉容器１内には通電性を有する腐食溶
液２が貯溜されている。また、符号３は金属試験
片で、この金属試験片３は密閉容器１内に設けら
れた絶縁性台４に置かれ、上記腐食溶液２中に侵
漬されている。そして、上記金属試験片３内には
本シースヒータの加熱部５が加熱源として埋込ま
れている。この加熱部５の上部には水冷室６を有
するフランジ７が設けられ、ボルト８によつて密
閉容器１の上面にテフロン等の絶縁性パツキン９
を介して固定されている。また、上記フランジ７
のボルト穴７ａと上記ボルト８との間にはテフロ
ン等の絶縁性ワツシヤ１０が設けられており、上
記フランジ７とボルト８とは絶縁されている。そ
して、上記水冷室６内には冷却水が入口ノズル１
１および出口ノズル１２を通つて循環するように
なつている。 The figure shows one embodiment of the present invention, and in the figure 1 is a metal closed container (for example, an autoclave). A corrosive solution 2 having electrical conductivity is stored in the closed container 1 . Further, reference numeral 3 denotes a metal test piece, and this metal test piece 3 is placed on an insulating stand 4 provided in the closed container 1 and immersed in the above-mentioned corrosive solution 2. A heating section 5 of the present sheath heater is embedded in the metal test piece 3 as a heating source. A flange 7 having a water cooling chamber 6 is provided on the upper part of the heating section 5, and an insulating packing 9 made of Teflon or the like is attached to the upper surface of the closed container 1 by means of bolts 8.
has been fixed through. In addition, the above flange 7
An insulating washer 10 made of Teflon or the like is provided between the bolt hole 7a and the bolt 8, so that the flange 7 and the bolt 8 are insulated. Cooling water flows into the water cooling chamber 6 through the inlet nozzle 1.
1 and outlet nozzle 12.
なお、金属製容器１に設けられたシースヒータ
挿入用の開口部１３は加熱部（シースヒータ）５
の径よりも大きくなつており、絶縁性パツキン９
は加熱部５の外表面から所定距離だけ離れて設け
られている。 Note that the opening 13 provided in the metal container 1 for inserting a sheath heater is a heating part (sheath heater) 5.
The diameter of the insulating packing 9 is larger than that of the insulating packing 9.
is provided a predetermined distance from the outer surface of the heating section 5.
次に作用について説明する。密閉容器１内の金
属試験片３を加熱部５で加熱する場合には上述し
た如く水冷室６内に水を流しながら加熱する。こ
の水冷室６の水冷作用により絶縁性パツキン９お
よび絶縁性ワツシヤ１０を熱から保護し、加熱部
５の金属製外皮と密閉容器１とを完全に絶縁状態
に保つことが可能となる。 Next, the effect will be explained. When the metal test piece 3 in the closed container 1 is heated in the heating section 5, the metal test piece 3 is heated while flowing water into the water cooling chamber 6 as described above. The water-cooling action of the water-cooling chamber 6 protects the insulating packing 9 and the insulating washer 10 from heat, making it possible to maintain the metal outer skin of the heating section 5 and the closed container 1 in a completely insulated state.
このように本実施例においては、通電性液体２
を貯溜した金属製容器１にボルト固定されるシー
スヒータ（加熱部５）のフランジ７に水冷室６が
設けられているので、金属製容器１とフランジ７
との間に介挿されるテフロン等の絶縁性パツキン
９やフランジ７とボルト８との間に介挿されるテ
フロン等の絶縁性ワツシヤ１０を水冷室６の冷却
作用によつて加熱部５の熱から保護することがで
きる。また、絶縁性パツキン９は加熱部５の外表
面から所定距離だけ離れて設けられているので、
絶縁性パツキン９がシースヒータからの熱によつ
て溶けることもない。さらに、金属製容器１に設
けられたシースヒータ挿入用の開口部１３は加熱
部５の径よりも大きく設けられているので、シー
スヒータ（加熱部５）と金属製容器１との絶縁状
態を良好に保つことができる。 In this way, in this embodiment, the electrically conductive liquid 2
Since the water cooling chamber 6 is provided in the flange 7 of the sheath heater (heating part 5) which is bolted to the metal container 1 storing the water, the metal container 1 and the flange 7
The insulating packing 9 made of Teflon or the like inserted between the flange 7 and the bolt 8 and the insulating washer 10 made of Teflon or the like inserted between the flange 7 and the bolt 8 are protected from the heat of the heating part 5 by the cooling action of the water cooling chamber 6. can be protected. Furthermore, since the insulating packing 9 is provided a predetermined distance from the outer surface of the heating section 5,
The insulating packing 9 will not melt due to the heat from the sheath heater. Furthermore, since the opening 13 for inserting the sheath heater provided in the metal container 1 is larger than the diameter of the heating section 5, the insulation state between the sheath heater (heating section 5) and the metal container 1 is improved. can be kept.
以上説明したように本考案は、通電性液体を貯
溜した金属製容器と、この金属製容器内に挿入さ
れるシースヒータとを具備してなり、前記金属製
容器に絶縁性パツキンを介してボルト固定される
シースヒータのフランジ部に水冷室を設けるとと
もに、前記金属製容器に設けられたシースヒータ
挿入用の開口部をシースヒータの径よりも大きく
設け、かつ前記絶縁性パツキンをシースヒータの
外表面から所定距離だけ離して設けたものであ
る。したがつて、本考案によればシースヒータと
金属製容器との絶縁状態を良好に保つことがで
き、金属製容器内に収容された金属試験片の腐食
試験を正確に実施することができる。 As explained above, the present invention includes a metal container storing an electrically conductive liquid and a sheath heater inserted into the metal container, which is bolted to the metal container via an insulating packing. A water cooling chamber is provided in the flange of the sheath heater, and an opening provided in the metal container for inserting the sheath heater is provided larger than the diameter of the sheath heater, and the insulating gasket is disposed at a predetermined distance from the outer surface of the sheath heater. It is set apart. Therefore, according to the present invention, it is possible to maintain a good insulation state between the sheath heater and the metal container, and it is possible to accurately perform a corrosion test on a metal test piece housed in the metal container.
図は本考案の一実施例を示す絶縁用シースヒー
タの断面図である。
１……密閉容器、２……腐食溶液、３……金属
試験片、５……加熱部シースヒータ、６……水冷
室、７……フランジ、８……ボルト、９……絶縁
性パツキン、１０……絶縁性ワツシヤ。
The figure is a sectional view of an insulating sheath heater showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... Airtight container, 2... Corrosion solution, 3... Metal test piece, 5... Heating section sheath heater, 6... Water cooling chamber, 7... Flange, 8... Bolt, 9... Insulating packing, 10 ...Insulating washer.
Claims (1)
製容器内に挿入されるシースヒータとを具備して
なり、前記金属製容器に絶縁性パツキンを介して
ボルト固定されるシースヒータのフランジ部に水
冷室を設けるとともに、前記金属製容器に設けら
れたシースヒータ挿入用の開口部をシースヒータ
の径よりも大きく設け、かつ前記絶縁性パツキン
をシースヒータの外表面から所定距離だけ離して
設けたことを特徴とする絶縁用シースヒータ。 It is equipped with a metal container storing an electrically conductive liquid and a sheath heater inserted into the metal container, and a water cooling chamber is provided at the flange of the sheath heater which is bolted to the metal container via an insulating gasket. and an opening for insertion of the sheath heater provided in the metal container is provided larger than the diameter of the sheath heater, and the insulating packing is provided a predetermined distance from the outer surface of the sheath heater. Insulating sheath heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16693683U JPS6074496U (en) | 1983-10-28 | 1983-10-28 | Insulating sheath heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16693683U JPS6074496U (en) | 1983-10-28 | 1983-10-28 | Insulating sheath heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6074496U JPS6074496U (en) | 1985-05-25 |
| JPH0243108Y2 true JPH0243108Y2 (en) | 1990-11-16 |
Family
ID=30365345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16693683U Granted JPS6074496U (en) | 1983-10-28 | 1983-10-28 | Insulating sheath heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6074496U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0641355Y2 (en) * | 1988-02-16 | 1994-10-26 | 富士電波工業株式会社 | Water-cooled electrode for electric furnace |
-
1983
- 1983-10-28 JP JP16693683U patent/JPS6074496U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6074496U (en) | 1985-05-25 |
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