JPS6322500Y2 - - Google Patents
Info
- Publication number
- JPS6322500Y2 JPS6322500Y2 JP1981123621U JP12362181U JPS6322500Y2 JP S6322500 Y2 JPS6322500 Y2 JP S6322500Y2 JP 1981123621 U JP1981123621 U JP 1981123621U JP 12362181 U JP12362181 U JP 12362181U JP S6322500 Y2 JPS6322500 Y2 JP S6322500Y2
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- thermocouple
- storage chamber
- crucible
- water storage
- 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
- 230000006698 induction Effects 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000002184 metal Substances 0.000 description 13
- 239000011819 refractory material Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 229910000809 Alumel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001179 chromel Inorganic materials 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Measuring Temperature Or Quantity Of Heat (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Description
【考案の詳細な説明】 この考案は誘導炉の温度測定装置に関する。[Detailed explanation of the idea] This invention relates to a temperature measuring device for an induction furnace.
従来の誘導炉の温度検出装置としては、るつぼ
形誘導炉に関しては、測定部を溶湯金属に浸漬さ
せる浸漬型温度計が用いられるが、この方式では
測定部が溶湯金属により溶融するのを防ぐために
短時間しか測定することが出来ず、したがつて、
連続的な温度監視が出来ない。一方貯湯室の下部
に溶湯通路を設けて、ここで加熱する 溝形誘導
炉は炉体外周の鉄皮に取付けた熱電対によつて温
度測定を行なつているが、この方式は溶湯金属の
温度を直接測定出来ないことと、外部雰囲気の影
響により誤差が大きいという欠点があつた。 As a conventional induction furnace temperature detection device, an immersion type thermometer is used for crucible-type induction furnaces, in which the measuring part is immersed in the molten metal. It can only be measured for a short time and therefore
Continuous temperature monitoring is not possible. On the other hand, in channel induction furnaces, a molten metal passage is provided at the bottom of the storage chamber, and the temperature is measured using a thermocouple attached to the steel shell around the furnace body. The disadvantages were that the temperature could not be measured directly and the error was large due to the influence of the external atmosphere.
この考案は上述の欠点をなくすためになされた
ものであつて、誘導炉の貯湯室の底面あるいはそ
の近傍の耐火物を貫通する熱電対を設け、その先
端を貯湯室内に露出させて、該熱電対出力により
溶湯の温度を測定するようにしたものであり、溶
湯温度を正確に、かつ連続的に測定できるととも
に、熱電対の先端で消耗しても残りの熱電対によ
つて温度測定が可能である長寿命の、かつ湯漏れ
検出器をも兼ねることができる温度測定装置を提
供することを目的とするものである。 This idea was made in order to eliminate the above-mentioned drawbacks.The thermocouple is installed to penetrate the refractory at or near the bottom of the hot water storage chamber of the induction furnace, and its tip is exposed inside the hot water storage chamber. The temperature of the molten metal is measured by the output of the thermocouple, and the temperature of the molten metal can be measured accurately and continuously.Even if the tip of the thermocouple is exhausted, the remaining thermocouple can be used to measure the temperature. It is an object of the present invention to provide a temperature measuring device that has a long life and can also serve as a hot water leak detector.
以下にこの考案の一実施例を図面とともに説明
する。 An embodiment of this invention will be described below with reference to the drawings.
第１図において１はるつぼ形の誘導炉、２は耐
火材で構成したるつぼ、３はるつぼ２の外周に巻
回した誘導コイル、４は継鉄である。るつぼ２の
貯湯室７には誘導コイル３の磁界で誘導加熱され
た溶湯金属５が貯留されている。 In FIG. 1, 1 is a crucible-shaped induction furnace, 2 is a crucible made of a refractory material, 3 is an induction coil wound around the outer circumference of the crucible 2, and 4 is a yoke. A hot water storage chamber 7 of the crucible 2 stores molten metal 5 that has been induction heated by the magnetic field of the induction coil 3.
６はるつぼ２の底面を貫通して設けた１対の熱
電対で、たとえばアルメル素子とクロメル素子と
を個別にるつぼ２の底面を垂直に貫通して設け、
その各素子の上端６−１，６−２をるつぼ２の貯
湯室７に露出させたものである。熱電対６の端子
はたとえば電圧計８に接続されていて、貯湯室７
に露出している熱電対６の先端６−１と６−２と
が溶湯金属５により導通すると、その溶湯温度に
比例した電圧が電圧計８により検出され、溶湯５
の温度が測定される。 Reference numeral 6 denotes a pair of thermocouples provided through the bottom surface of the crucible 2; for example, an alumel element and a chromel element are separately provided perpendicularly through the bottom surface of the crucible 2;
The upper ends 6-1 and 6-2 of each element are exposed to the hot water storage chamber 7 of the crucible 2. The terminal of the thermocouple 6 is connected to, for example, a voltmeter 8, and the terminal of the thermocouple 6 is connected to a voltmeter 8.
When the tips 6-1 and 6-2 of the thermocouple 6, which are exposed to the
temperature is measured.
９はるつぼ２の耐火物の外周に、そのるつぼ２
の高さ方向に延在させた湯洩れ検出用のアンテナ
で、このアンテナ９は電源１０と電流計１１とを
介して熱電対６の一方の線に接続されている。 9. Place the crucible 2 on the outer periphery of the refractory of the crucible 2.
This antenna 9 extends in the height direction for detecting hot water leakage, and is connected to one wire of the thermocouple 6 via a power source 10 and an ammeter 11.
これによつてるつぼ２の耐火物から湯洩れがあ
つたとき、このアンテナ９、電源１０、電流計１
１、熱電対６、溶湯金属５を通る閉回路が形成さ
れて電流計１１のふれによつて、湯洩れが検出さ
れる。 As a result, when hot water leaks from the refractory of the crucible 2, the antenna 9, the power source 10, and the ammeter 1
1. A closed circuit is formed through the thermocouple 6 and the molten metal 5, and a leakage of the metal is detected by the fluctuation of the ammeter 11.
上述の実施例において熱電対６の先端６−１，
６−２は貯湯室７内に露出しており、溶湯と直接
接触するので、溶湯温度を正確に測定できる。ま
た熱電対の先端が溶融して消耗した場合でも、該
当部分の耐火物を削り取るなどの方法によつて熱
電対の先端を再び容易に露出させることができる
ので、常に温度測定を良好な状態で行なうことが
できる。 In the above embodiment, the tip 6-1 of the thermocouple 6,
6-2 is exposed in the hot water storage chamber 7 and comes into direct contact with the molten metal, so that the temperature of the molten metal can be accurately measured. In addition, even if the tip of the thermocouple melts and wears out, it can be easily exposed again by scraping off the refractory material in the relevant area, so temperature measurements can always be made in good condition. can be done.
なおこの考案は黒鉛るつぼを用いた誘導炉やる
つぼの底に連通する溝の周囲にインダクタを設け
た溝形誘導炉などにも適用できる。 This invention can also be applied to induction furnaces using graphite crucibles and channel-shaped induction furnaces having an inductor around a groove communicating with the bottom of the crucible.
以上詳述したように、この考案によれば誘導炉
のるつぼの底面或いはその近傍にるつぼを貫通し
て熱電対を設けて、その先端をるつぼの貯湯室内
に露出させて、溶湯金属と接触させるようにした
から、溶湯温度を連続的に測定できるとともに、
熱電対は溶湯に直接接触するから正確な温度測定
ができるようになる。また熱電対が溶融により消
耗してもるつぼの耐火材を削りとることによつて
熱電対を露出させることができ、寿命を長くする
ことができる。また、この考案によれば炉の外側
面に設けたアンテナと上記熱電対素子の一方とに
より湯漏検出器を構成するようにしたので、スペ
ースや製造工程の節約に著効あるものである。 As detailed above, according to this invention, a thermocouple is provided at or near the bottom of the crucible of the induction furnace by penetrating the crucible, and its tip is exposed in the hot water storage chamber of the crucible and brought into contact with the molten metal. This makes it possible to measure the molten metal temperature continuously, and
Thermocouples make direct contact with the molten metal, allowing for accurate temperature measurements. Further, even if the thermocouple is consumed due to melting, the thermocouple can be exposed by scraping off the refractory material of the crucible, thereby extending its life. Further, according to this invention, a hot water leak detector is constructed by an antenna provided on the outer surface of the furnace and one of the thermocouple elements, which is extremely effective in saving space and manufacturing process.
第１図はこの考案の一実施例を示す断面図であ
る。
１……誘導炉、２，２０……るつぼ、３……誘
導コイル、４……継鉄、５……溶湯、６……熱電
対、７……貯湯室、８……電圧計、９……アンテ
ナ、１２……黒鉛るつぼ、２１……孔、２２……
溝、２３……インダクタ。
FIG. 1 is a sectional view showing an embodiment of this invention. 1... Induction furnace, 2, 20... Crucible, 3... Induction coil, 4... Yoke, 5... Molten metal, 6... Thermocouple, 7... Hot water storage chamber, 8... Voltmeter, 9... ...Antenna, 12... Graphite crucible, 21... Hole, 22...
Groove, 23...inductor.
Claims (1)
通させて、該熱電対素子の各一端を貯湯室内に露
出させるとともに、熱電対素子の各他端は温度測
定器としての電圧測定器に接続し、かつ貯湯室の
外周側面と該貯湯室を包囲するように設けた誘導
コイルとの間に設けたアンテナの一端と上記熱電
対素子のいずれか一方との間に湯漏れ検出計を設
けたことを特徴とする誘導炉の温度測定装置。 A pair of thermocouple elements are passed through the bottom of the hot water storage chamber of the induction furnace, one end of each thermocouple element is exposed inside the hot water storage chamber, and the other end of each thermocouple element is connected to a voltage measuring device as a temperature measuring device. A hot water leak detector is provided between one end of the antenna connected to the hot water storage chamber and an induction coil provided to surround the hot water storage chamber and one of the thermocouple elements. An induction furnace temperature measuring device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12362181U JPS5832338U (en) | 1981-08-20 | 1981-08-20 | Induction furnace temperature measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12362181U JPS5832338U (en) | 1981-08-20 | 1981-08-20 | Induction furnace temperature measurement device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5832338U JPS5832338U (en) | 1983-03-02 |
| JPS6322500Y2 true JPS6322500Y2 (en) | 1988-06-21 |
Family
ID=29917520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12362181U Granted JPS5832338U (en) | 1981-08-20 | 1981-08-20 | Induction furnace temperature measurement device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5832338U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05243899A (en) * | 1992-02-26 | 1993-09-21 | Nec Corp | Ceramic filter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49104233U (en) * | 1972-12-27 | 1974-09-06 |
-
1981
- 1981-08-20 JP JP12362181U patent/JPS5832338U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5832338U (en) | 1983-03-02 |
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