JPS6168525A - Continuous molten metal temperature measuring meter - Google Patents
Continuous molten metal temperature measuring meterInfo
- Publication number
- JPS6168525A JPS6168525A JP18949584A JP18949584A JPS6168525A JP S6168525 A JPS6168525 A JP S6168525A JP 18949584 A JP18949584 A JP 18949584A JP 18949584 A JP18949584 A JP 18949584A JP S6168525 A JPS6168525 A JP S6168525A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- thermocouple
- tube
- porcelain tube
- gas
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
- G01K1/10—Protective devices, e.g. casings for preventing chemical attack
- G01K1/105—Protective devices, e.g. casings for preventing chemical attack for siderurgical use
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
Description
【発明の詳細な説明】 ［発明の技術分野コ 本発明は溶融金属連続測温計の改良に関する。[Detailed description of the invention] [Technical field of invention] The present invention relates to improvements in continuous molten metal thermometers.
［発明の技術的背景］
従来の溶融金属連続測温計を第４図を参照して説明する
。[Technical Background of the Invention] A conventional molten metal continuous thermometer will be explained with reference to FIG.
第４図において、アルミナ−黒鉛製の保護管ｌにはアル
ミナ製の磁器管２が内装されている。これらは一体成形
されるかメは両者の間に黒鉛系のモルタルが詰められて
いる。また、これらのヒ部しこは金物３が装着されてい
る。この金物３には重置方向の連結管４、エルボ管５及
び水平方向の連結管６が順次連結され、更に連結管６に
はターミナル部７が固定されている。また、 Ｉ′ｉ７
７記磁器管２内には例えば白金−白金・ロジウム熱電対
８の測温端が挿入ネれ、この熱電対８の定温端は前記連
結管４等の内部を通って前記ターミナル部７に接続され
ている。In FIG. 4, a porcelain tube 2 made of alumina is housed inside a protection tube l made of alumina-graphite. Either these are integrally molded, or graphite mortar is filled between them. Further, hardware 3 is attached to these hip parts. A connecting pipe 4 in the stacking direction, an elbow pipe 5, and a connecting pipe 6 in the horizontal direction are successively connected to this hardware 3, and a terminal portion 7 is further fixed to the connecting pipe 6. Also, I'i7
For example, a temperature measuring end of a platinum-platinum-rhodium thermocouple 8 is inserted into the porcelain tube 2, and the constant temperature end of this thermocouple 8 is connected to the terminal section 7 through the inside of the connecting pipe 4, etc. has been done.
上記溶融金属連続測温計を用い、保護管ｌの先端部を溶
融金属中に浸漬して熱起電力を電位差計で測定するか、
あるいはレコーダーにて記録することにより溶融金属の
温度を連続的に測温する。Using the above molten metal continuous thermometer, immerse the tip of the protective tube l in the molten metal and measure the thermoelectromotive force with a potentiometer, or
Alternatively, the temperature of the molten metal is continuously measured by recording it with a recorder.
［背景技術の問題点］
しかし、ト記従来の溶融金属連続測温計では測温中にア
ルミナ−黒鉛製の保護管ｌあるいは黒鉛系のモルタルか
らＣＯガスが発生し、磁器管ｚ内を拡散して熱電対８の
劣化を促進する。このように熱電対８が劣化すると、熱
起電力が低ドしてＩＥ確な温度測定が不可能となったり
、駐局的には断線を生じる。[Problems with the background technology] However, with the conventional continuous molten metal thermometer mentioned above, CO gas is generated from the alumina-graphite protective tube l or graphite mortar during temperature measurement and diffuses inside the porcelain tube z. This accelerates the deterioration of the thermocouple 8. If the thermocouple 8 deteriorates in this way, the thermoelectromotive force will become low, making it impossible to accurately measure the temperature, or causing disconnection when stationed at the station.
［発明の目的１
本発明は１一記欠点を解消するためになされたものであ
り、熱電対の劣化を防１１−シて、長時間測温の【１丁
能な溶融金属連続７１１１温計を提供しようとするもの
である。[Objective of the Invention 1] The present invention has been made in order to eliminate the drawbacks listed in 1.1. This is what we are trying to provide.
［発明の概要］
本発明の溶融金属連続測温計は、保護管に内装された磁
器管に第２の磁器管を内装し、この第２の磁器管に熱電
対を挿入したことを特徴とするものである。[Summary of the Invention] The molten metal continuous thermometer of the present invention is characterized in that a second porcelain tube is placed inside a porcelain tube that is placed inside a protection tube, and a thermocouple is inserted into this second porcelain tube. It is something to do.
このような溶融金属ｉ！ｌ続測温計によれば、第２の磁
器管により保護管やモルタルから発生するＣＯガスを熱
電対から遮断することができるので、熱電対の劣化を防
市して長時間にわたって測温することができる。Such molten metal i! According to the continuous thermometer, the second porcelain tube can block CO gas generated from the protective tube and mortar from the thermocouple, preventing deterioration of the thermocouple and measuring temperature over a long period of time. be able to.
また、第２の磁器管にガス供給装置を接続し、第２の磁
器管内に間欠的あるいは連続的に空気、窒素あるいはア
ルゴン等のガスを送入して熱電対の雰囲気を置換すれば
、より一層熱電対の劣化を防１卜することができる。In addition, if a gas supply device is connected to the second porcelain tube and a gas such as air, nitrogen, or argon is intermittently or continuously fed into the second porcelain tube to replace the atmosphere of the thermocouple, it is possible to Deterioration of the thermocouple can be further prevented.
［発明の実施例］ 以下、本発明の実施例を第１図を参照して説明する。[Embodiments of the invention] Embodiments of the present invention will be described below with reference to FIG.
第１図において、アルミナ−黒鉛製の保護管１１にはア
ルミナ製の第１の磁器管１２が内装され、更に第１の磁
器管１２内にはアルミナ製の第２の磁器管１３が内装さ
れている。前記保護管１１と第１の磁器管１２とは一体
成形ｙれるか又は両者の間に黒鉛系のモルタルが詰めら
れている。また、これらの−に部には金物１４が装着さ
れている。この金物１４には垂直方向の連結管１５、エ
ルボ管１６及び水平方向の連結管１７が順次連結され、
更に連結管１７にはターミナル部１８が固定されている
。また、前記第２の磁器管１３内には例えば白金−白金
・ロジウム熱電対１９の測温端が挿入され、この熱電対
１９の定温端は前記連結管１５等の内部を通って前記タ
ーミナル部１８に接続されている。In FIG. 1, a first porcelain tube 12 made of alumina is placed inside a protection tube 11 made of alumina-graphite, and a second porcelain tube 13 made of alumina is further placed inside the first porcelain tube 12. ing. The protective tube 11 and the first porcelain tube 12 are integrally molded, or graphite mortar is filled between them. Further, a metal fitting 14 is attached to these negative portions. A vertical connecting pipe 15, an elbow pipe 16, and a horizontal connecting pipe 17 are sequentially connected to this hardware 14.
Furthermore, a terminal portion 18 is fixed to the connecting pipe 17. Further, a temperature measuring end of, for example, a platinum-platinum-rhodium thermocouple 19 is inserted into the second porcelain tube 13, and the constant temperature end of this thermocouple 19 passes through the inside of the connecting pipe 15 etc. to the terminal section. 18.
１−、記后融金属連続Ｊ１４温計を用いた溶融金属の温
度測定は従来と同様に行なわれる。1-.Measurement of the temperature of the molten metal using a continuous molten metal J14 thermometer is carried out in the same manner as before.
しかして上記溶融金属連続測温計によれば、測温中に保
護管１１や保護管１１と第１の磁器管１２との間に詰め
られているモルタルからＣＯガスが発生し、第１の磁器
管１２内を拡散しても、第２の磁器管１３により熱電対
１９をＣＯガスから遮断することができるので、熱電対
■９の劣化を防１トすることができる。したがって、長
時間にわたって連続的に溶融金属の温度測定を行なうこ
とができる。However, according to the continuous molten metal temperature meter, CO gas is generated from the protection tube 11 and the mortar packed between the protection tube 11 and the first porcelain tube 12 during temperature measurement, and Even if CO gas diffuses inside the porcelain tube 12, the thermocouple 19 can be isolated from the CO gas by the second porcelain tube 13, so deterioration of the thermocouple 9 can be prevented. Therefore, the temperature of the molten metal can be measured continuously over a long period of time.
また、第２の磁器管１３にガス供給装置を接続して熱電
対１９の周囲の雰囲気ガスを置換するようにしてもよい
。このような溶融金属連続測温計を第２図を参照して説
明する。なお、第１図と同一の部材には同一番号を付し
て説明を省略する。Alternatively, a gas supply device may be connected to the second porcelain tube 13 to replace the atmospheric gas around the thermocouple 19. Such a continuous molten metal thermometer will be explained with reference to FIG. Note that the same members as in FIG. 1 are given the same numbers and their explanations will be omitted.
第２図において、第２の磁器管１３の一ヒ端にはガス供
給管２０が接続され、更にこのガス供給管２０には流肝
計２１、レギュレータ２２及びコンプレッサ又はガスボ
ンベ２３が順次接続されている。また、第１の磁器管１
２及び金物１４の途中にはガス抜き孔２４が設けられて
いる。In FIG. 2, a gas supply pipe 20 is connected to one end of the second porcelain pipe 13, and a flow meter 21, a regulator 22, and a compressor or gas cylinder 23 are connected in sequence to this gas supply pipe 20. There is. In addition, the first porcelain tube 1
A gas vent hole 24 is provided in the middle of the metal fittings 2 and 14.
−Ｆ記溶融金属連続測温計において、ガス供給管２０か
ら供給されるガスは第２の磁器管１３の上端から下端へ
向かって流れ、熱電対１９の周囲のガスと置換し、第２
の磁器管１３と第１の磁器管１２の間を通ってガス抜き
孔２４から外部へ放出される。このように熱電対１９の
周囲のガスを置換すれば、より一層熱電対１９の劣化を
防１トすることができる。- In the continuous molten metal thermometer described in F, the gas supplied from the gas supply pipe 20 flows from the upper end to the lower end of the second porcelain tube 13, replaces the gas around the thermocouple 19, and
The gas passes between the first porcelain tube 13 and the first porcelain tube 12 and is discharged to the outside from the gas vent hole 24. By replacing the gas around the thermocouple 19 in this manner, deterioration of the thermocouple 19 can be further prevented.
実際に、第１図図示の溶融金属連続測温計（実施例１）
、第２図図示の溶融金属連続測温計（実施例２）及び第
４図図示の従来の溶融金属連続測温計（比較例）を６０
）ンのタンディツシュに設置して溶鋼の温度を測定し得
る時間を調べたところ、下記表に示すような結果が得ら
れた。ただし、実施例２の溶融金属連続測温計は、第２
の磁器管内に空気を５分間隔で送入して使用した。Actually, the molten metal continuous thermometer shown in Fig. 1 (Example 1)
, the molten metal continuous thermometer shown in FIG. 2 (Example 2) and the conventional molten metal continuous thermometer (comparative example) shown in FIG.
) installed in the tundish of the facility, and investigated the time required to measure the temperature of molten steel, and the results shown in the table below were obtained. However, the molten metal continuous thermometer of Example 2
Air was introduced into the porcelain tube at 5 minute intervals.
上記表から明らかなように従来の溶融金属連続測温計と
比較して実施例１は約３〜４倍、実施例２は約８倍の寿
命を確保することができた。As is clear from the above table, compared to the conventional continuous molten metal thermometer, the life of Example 1 was about 3 to 4 times longer, and the life of Example 2 was about 8 times longer.
なお、第２図図示の溶融金属連続測温計のように第２の
磁器管内の雰囲気を調整する場合にターミナル部の加熱
を防１１−する目的で装着した冷却ボックス内のガスを
利用してもよい。こうした構成の溶融金属連続測温計を
第３図を参照して説明する。In addition, when adjusting the atmosphere inside the second porcelain tube as in the molten metal continuous thermometer shown in Figure 2, the gas in the cooling box installed for the purpose of preventing heating of the terminal part is used. Good too. A continuous molten metal thermometer having such a configuration will be explained with reference to FIG.
第３図において、アルミナ−黒鉛製の保護管３１にはア
ルミナ製の第１の磁器管３２が内装され、更に第１の磁
器管３２内にはアルミナ製の第２の磁器管３３が内装さ
れている。また、これらのヒ部には金物３４が装着され
、この金物３４には垂直方向の連結管３５．冷却ボック
ス３６、水平方向の連結管３７及びコネクタ３８が順次
連結され、このコネクタ３８しこは冷却ガス供給口３９
が取付けられている。また、前記冷却ボックス３６内に
はターミナル４０が設けられており、前記第２の磁器管
３３内に挿入された熱電対４１の定温端が接続されてい
る。更に冷却ボックス３６には冷却ガス排出孔４２が、
前記金物３４及び連結管３５にはそれぞれガス抜き孔４
３．４４が設けられている。In FIG. 3, a first porcelain tube 32 made of alumina is placed inside a protection tube 31 made of alumina-graphite, and a second porcelain tube 33 made of alumina is further placed inside the first porcelain tube 32. ing. Further, a metal fitting 34 is attached to these holes, and a vertical connecting pipe 35 is attached to this metal fitting 34. A cooling box 36, a horizontal connecting pipe 37, and a connector 38 are connected in sequence, and this connector 38 is connected to a cooling gas supply port 39.
is installed. Further, a terminal 40 is provided inside the cooling box 36, and a constant temperature end of a thermocouple 41 inserted into the second porcelain tube 33 is connected thereto. Furthermore, the cooling box 36 has a cooling gas exhaust hole 42.
Gas vent holes 4 are provided in the hardware 34 and the connecting pipe 35, respectively.
3.44 is provided.
第３図図示の溶融金属連続測温計では冷却ガス供給口３
９から供給するガス流袖を変えるか、又はガス流量を一
定にして冷却ガス排出孔４２の開度な変えることにより
、第２の磁器管３３内の雰囲気ガスを調整することがで
きる。In the molten metal continuous thermometer shown in Figure 3, the cooling gas supply port 3
The atmospheric gas inside the second porcelain tube 33 can be adjusted by changing the gas flow sleeve supplied from the second porcelain tube 33 or by changing the opening degree of the cooling gas discharge hole 42 while keeping the gas flow rate constant.
［発明の効果］
以−ヒ詳述した如く本発明の溶融金属連続測温計によれ
ば、熱電対の劣化を防１トすることにより長時間にわた
って溶融金属の温度を測定できる等顕著な効果を奏する
ものである。[Effects of the Invention] As detailed below, the continuous molten metal thermometer of the present invention has remarkable effects such as being able to measure the temperature of molten metal over a long period of time by preventing deterioration of the thermocouple. It is something that plays.
第１図は本発明の実施例における溶融金属連続測温計の
断面図、第２図は本発明の他の実施例における溶融金属
連続測温計の断面図、第３図は本発明の更に他の実施例
における溶融金属連続測温計の断面図、第４図は従来の
溶融金属連続測温計の断面図である。
１１．３１・・・保護管、１２．３２・・・第１の磁器
管、１３．３３・・・第２の磁器管、１４．３４・・・
金物、１５．１７．３５．３７・・・連結管、１６・・
・エルボ管、１８・・・ターミナル部、１９．４１・・
・熱電対、２０・・・ガス供給管、２１・・・流量計、
２２・・・レギュレータ、２３・・・コンプレッサ又は
ガスボンベ、２４．４３．４４・・・ガス抜き孔、３６
・・・冷却ボックス、３８・・・コネクタ、３９・・・
ガス供給口、４０・・・ターミナル、４２・・・ガス排
出孔。
出願人代理人 弁理士 鈴江 武彦
第１図
第３図
３只
第４図FIG. 1 is a sectional view of a continuous molten metal thermometer according to an embodiment of the present invention, FIG. 2 is a sectional view of a continuous molten metal thermometer according to another embodiment of the present invention, and FIG. 3 is a sectional view of a continuous molten metal thermometer according to another embodiment of the present invention. A sectional view of a continuous molten metal thermometer according to another embodiment, and FIG. 4 is a sectional view of a conventional continuous molten metal thermometer. 11.31... Protection tube, 12.32... First porcelain tube, 13.33... Second porcelain tube, 14.34...
Hardware, 15.17.35.37... Connecting pipe, 16...
・Elbow pipe, 18...Terminal part, 19.41...
・Thermocouple, 20... Gas supply pipe, 21... Flow meter,
22...Regulator, 23...Compressor or gas cylinder, 24.43.44...Gas vent hole, 36
...Cooling box, 38...Connector, 39...
Gas supply port, 40...terminal, 42...gas discharge hole. Applicant's representative Patent attorney Takehiko Suzue Figure 1 Figure 3 Figure 4 Figure 4
Claims (2)
融金属連続測温計において、前記磁器管に第２の磁器管
を内装し、該第２の磁器管に熱電対を挿入したことを特
徴とする溶融金属連続測温計。(1) In a continuous molten metal thermometer in which a thermocouple is inserted into a porcelain tube housed in a protection tube, a second porcelain tube is placed inside the porcelain tube, and a thermocouple is inserted into the second porcelain tube. A continuous molten metal thermometer featuring:
徴とする特許請求の範囲第１項記載の溶融金属連続測温
計。(2) The molten metal continuous thermometer according to claim 1, characterized in that a gas supply device is connected to the second porcelain tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18949584A JPS6168525A (en) | 1984-09-12 | 1984-09-12 | Continuous molten metal temperature measuring meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18949584A JPS6168525A (en) | 1984-09-12 | 1984-09-12 | Continuous molten metal temperature measuring meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6168525A true JPS6168525A (en) | 1986-04-08 |
| JPH043815B2 JPH043815B2 (en) | 1992-01-24 |
Family
ID=16242221
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18949584A Granted JPS6168525A (en) | 1984-09-12 | 1984-09-12 | Continuous molten metal temperature measuring meter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6168525A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6338123A (en) * | 1986-08-01 | 1988-02-18 | ヴエスヴイウス クルーシブル カンパニー | Temperature detector |
| JPH01169329A (en) * | 1987-12-24 | 1989-07-04 | Kawasou Denki Kogyo Kk | Continuous temperature measuring apparatus of fused metal |
| JPH01284718A (en) * | 1988-05-11 | 1989-11-16 | Kobe Steel Ltd | Method and device for detecting in-furnace temperature |
| JPH06102101A (en) * | 1992-08-05 | 1994-04-15 | Shinagawa Refract Co Ltd | Temperature sensor and method for measuring temperature with the sensor |
| JP4535306B2 (en) * | 2000-10-27 | 2010-09-01 | いすゞ自動車株式会社 | Temperature measuring instrument |
| US9829385B2 (en) | 2004-07-05 | 2017-11-28 | Heraeus Electro-Nite International N.V. | Container for molten metal, use of the container and method for determining an interface |
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| JPS52106454U (en) * | 1976-02-10 | 1977-08-13 | ||
| JPS52102080A (en) * | 1976-02-20 | 1977-08-26 | Yamari Trading | Method of producing special thermocouple |
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| JPS53107378A (en) * | 1977-03-01 | 1978-09-19 | Toshiba Ceramics Co | Protection tubing for measuring temperature of melting metal continuously and method for manufacturing said tubing |
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| JPS5538290B2 (en) * | 1973-08-08 | 1980-10-03 | ||
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|---|---|---|---|---|
| JPS5142079U (en) * | 1974-09-24 | 1976-03-29 | ||
| JPS5280190A (en) * | 1975-12-26 | 1977-07-05 | Toshiba Ceramics Co | Ceramic protective tube for continuous measurement of temperature |
| JPS52106454U (en) * | 1976-02-10 | 1977-08-13 | ||
| JPS52102080A (en) * | 1976-02-20 | 1977-08-26 | Yamari Trading | Method of producing special thermocouple |
| JPS539585A (en) * | 1976-07-14 | 1978-01-28 | Toshiba Ceramics Co | Protective tube for continuous temperature measurement |
| JPS53107378A (en) * | 1977-03-01 | 1978-09-19 | Toshiba Ceramics Co | Protection tubing for measuring temperature of melting metal continuously and method for manufacturing said tubing |
| JPS5538290U (en) * | 1978-09-05 | 1980-03-12 |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6338123A (en) * | 1986-08-01 | 1988-02-18 | ヴエスヴイウス クルーシブル カンパニー | Temperature detector |
| JPH01169329A (en) * | 1987-12-24 | 1989-07-04 | Kawasou Denki Kogyo Kk | Continuous temperature measuring apparatus of fused metal |
| US4984904A (en) * | 1987-12-24 | 1991-01-15 | Kawaso Electric Industrial Co., Ltd. | Apparatus for continuously measuring temperature of molten metal and method for making same |
| JPH01284718A (en) * | 1988-05-11 | 1989-11-16 | Kobe Steel Ltd | Method and device for detecting in-furnace temperature |
| JPH06102101A (en) * | 1992-08-05 | 1994-04-15 | Shinagawa Refract Co Ltd | Temperature sensor and method for measuring temperature with the sensor |
| JP4535306B2 (en) * | 2000-10-27 | 2010-09-01 | いすゞ自動車株式会社 | Temperature measuring instrument |
| US9829385B2 (en) | 2004-07-05 | 2017-11-28 | Heraeus Electro-Nite International N.V. | Container for molten metal, use of the container and method for determining an interface |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH043815B2 (en) | 1992-01-24 |
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| LAPS | Cancellation because of no payment of annual fees |