JPS5854577A - Sheathed heater - Google Patents
Sheathed heaterInfo
- Publication number
- JPS5854577A JPS5854577A JP15422681A JP15422681A JPS5854577A JP S5854577 A JPS5854577 A JP S5854577A JP 15422681 A JP15422681 A JP 15422681A JP 15422681 A JP15422681 A JP 15422681A JP S5854577 A JPS5854577 A JP S5854577A
- Authority
- JP
- Japan
- Prior art keywords
- heating element
- sheathed heater
- width
- heat
- longitudinal direction
- 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.)
- Pending
Links
Landscapes
- Resistance Heating (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明Fi脣定の発熱分布特性を有するシーズヒータに
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sheathed heater having Fi-controlled heat distribution characteristics.
例えば核燃料模擬発熱体として、軸方向に対して正弦波
状の発熱分布特性を有するシーズヒータが用いられてい
る。For example, a sheathed heater having a sinusoidal heat distribution characteristic in the axial direction is used as a nuclear fuel simulating heating element.
この種シーズヒータは所定の発熱分布特性を得るために
、従来より程々の構成をなすものが知られている。例え
げ、発熱体を管状tたは棒状のものとし、その肉厚(横
断面積)を発熱分布特性に応じて変化させ友もの、ある
いは管状の発熱体に発熱分布特性に応じてピッチを変え
ながら螺旋状の切離溝を形成し次ものがある。Conventionally, this type of sheathed heater is known to have a moderate configuration in order to obtain predetermined heat distribution characteristics. For example, if the heating element is tubular or rod-shaped, and its wall thickness (cross-sectional area) is changed according to the heat distribution characteristics, then the pitch of the heating element is changed according to the heat distribution characteristics. There are the following types that form a spiral cutting groove.
しかるに、前者は機械加工が面倒であ)、発熱体が膨張
圧よシ座屈変形を生じて外管との間に膨張差があると両
者が接触して発熱体や外管の曲がシ、折損を生じる。後
者は機械加工が困難で加エフストが高くなシ、特に螺旋
状の切離溝のピッチが密な部分と疎な部分とがあって不
均一であるため、発熱体の膨張を充分吸収しきれないと
いう欠点がある。However, the former is difficult to machine), and if the heating element undergoes buckling deformation due to expansion pressure and there is an expansion difference between the heating element and the outer tube, the two will come into contact and the heating element and outer tube will bend. , causing breakage. The latter is difficult to machine and requires high machining costs, and the pitch of the spiral cutting grooves is uneven, with some parts being dense and some parts being sparse, so the expansion of the heating element cannot be sufficiently absorbed. There is a drawback that there is no
本発明は前配事悄に鑑みてなされたもので、所定の発熱
分布特性を容易に得られるとともに製作が容易であシ、
且つ膨張変形を緩和して折損事故を防止できるシーズヒ
ータを提供するものである。The present invention has been made in view of the previous concerns, and it is possible to easily obtain a predetermined heat distribution characteristic, and is easy to manufacture.
Moreover, the present invention provides a sheathed heater that can prevent breakage accidents by alleviating expansion and deformation.
すなわち、本発明のシーズヒータは幅寸法を長手方向に
異ならせた帯材にて形成した発熱体を備え次ものである
。That is, the sheathed heater of the present invention includes a heating element formed of a strip material having different width dimensions in the longitudinal direction.
以下本発明を図面で示す実施例について説明する。Embodiments of the present invention illustrated in the drawings will be described below.
第1図は本発明のシーズヒータの一実施例を示している
。図中1は発熱体、2はこの発熱体1が挿入された外管
、3はこの外管1の内部に殖財である。FIG. 1 shows an embodiment of the sheathed heater of the present invention. In the figure, 1 is a heating element, 2 is an outer tube into which this heating element 1 is inserted, and 3 is a product inside this outer tube 1.
発熱体1はサインカーブせの発熱分布特性を有するコイ
ルatなすもので、第2図の展開図で示すように二、ケ
ル−クロム合金などからなる帯材6を一定ピ、チおよび
一定巻径をもりてりメンコイル状に形成したもので構成
されている。帯材6は第3図で示すようにサインカーブ
(正弦波曲線)をなす発熱分布特性に対応して、その発
熱分布を得るように長手方向に沿って幅寸法を異ならせ
である。すなわち、帯材6は両端部の幅寸法S1が最も
大きく、中央部の幅寸@S諺が最も小さく設定され、両
端部から中央部にかけて長手方向に沿って幅寸法が順次
連続して小さくなるように形成されている。なお、帯材
6は両側部を長手方向に沿って連続的にカットすること
により幅寸法を異ならせている。The heating element 1 is a coil having a heat distribution characteristic of a sine curve, and as shown in the developed view in FIG. It is made of wood shaped like a mancoil. As shown in FIG. 3, the width of the strip material 6 is made to vary along its longitudinal direction in accordance with the heat generation distribution characteristic of a sine curve. In other words, the width S1 of the strip material 6 is set to be the largest at both ends, and the smallest at the center, and the width decreases successively in the longitudinal direction from both ends to the center. It is formed like this. Note that the width dimension of the band material 6 is made different by continuously cutting both side portions along the longitudinal direction.
因みに帯材6の寸法について述べると、厚さQ、 4
wm 、両端部の幅813.2m、中央部の幅S!2、
5 Mである。そして、発熱体1を製作する場合には、
所定長さに切断された帯材の両側部を放電加工により切
除して長手方向に沿い幅寸法が異なる帯材6を成形し、
さらにこの帯材6を一定の巻径と一定のピッチをもって
りメンコイル状に巻回して発熱体1を製作゛している。Incidentally, speaking about the dimensions of the strip material 6, the thickness Q, 4
wm, width at both ends 813.2m, width at the center S! 2,
It is 5M. When manufacturing the heating element 1,
Both sides of the strip material cut to a predetermined length are removed by electric discharge machining to form a strip material 6 having different width dimensions along the longitudinal direction.
Furthermore, the heating element 1 is manufactured by winding this strip material 6 in a mencoil shape with a constant winding diameter and a constant pitch.
このため、コイル状をなす発熱体1は帯材6により両端
部から中央部にかけて幅寸法が連続的に縮小していく構
成のものとなる。Therefore, the coil-shaped heating element 1 has a width dimension that continuously decreases from both ends to the center due to the band material 6.
しかして、このような発熱体1を備えたシーズヒータに
おいて、端子4.4を介して発熱体1に一定の電流を導
通すると、発熱体1では長手方向に沿う各部分がその電
気抵抗値に応じた発熱量をもって発熱し、全体として第
3図で示すようなサインカーブをなす発熱分布特性が得
られる。1llE3図は発熱体1の軸線方向における各
部分での発熱量を示す線図である。すなわち、発熱体1
における両端部は帯材6の両端部にて形成され、その幅
寸法S1が最も大であるので電気抵抗値が最も小さく、
これに応じて発熱量が最も小さい。発熱体1における中
央部は帯材6の中央部にて形成され、その幅寸法S雪が
最も小であるために電気抵抗値が最も大きく、これに応
じて発熱量が最も大きい。セして、発熱体10両端部か
ら中央部に到る部分は帯材6によシ幅寸法が順次連続し
て縮小するので電気抵抗値が増大し、これに応じて発熱
量も連続して増大していく、このように発熱体10幅寸
法が軸線方向にわたって変化することによシ各部の電気
抵抗値も変化し、これに応じて発熱体1の各部の発熱量
が連続的に変化する。従って発熱体1は全体として中央
部が大きく両端部が小さくなるサインカーブをなす発熱
分布特性を形成できる。Therefore, in a sheathed heater equipped with such a heating element 1, when a constant current is conducted to the heating element 1 through the terminal 4.4, each part of the heating element 1 along the longitudinal direction changes its electrical resistance value. Heat is generated with a corresponding amount of heat, and as a whole, a heat generation distribution characteristic forming a sine curve as shown in FIG. 3 is obtained. Figure 1llE3 is a diagram showing the amount of heat generated at each part of the heating element 1 in the axial direction. That is, heating element 1
Both ends are formed by both ends of the strip material 6, and since the width dimension S1 is the largest, the electrical resistance value is the smallest,
Accordingly, the amount of heat generated is the smallest. The central part of the heating element 1 is formed at the central part of the strip material 6, and since its width dimension S is the smallest, the electric resistance value is the largest, and accordingly, the amount of heat generated is the largest. As the width of the band 6 gradually decreases from both ends of the heating element 10 to the center, the electrical resistance increases, and the amount of heat generated also increases accordingly. As the width of the heating element 10 changes in the axial direction, the electrical resistance value of each part also changes, and the amount of heat generated in each part of the heating element 1 changes continuously accordingly. . Therefore, the heating element 1 as a whole can form a heat generation distribution characteristic that is a sine curve that is large in the center and small in both ends.
そして、この発熱体1を備えたシーズヒータは、サイン
カーブの発熱分布特性を要求される例えば核燃料模擬発
熱体に用いる仁とができる。A sheathed heater equipped with this heating element 1 can be used, for example, as a nuclear fuel simulating heating element that requires a sine curve heat generation distribution characteristic.
なお、発熱体1を形成する帯材6は、幅寸法が長手方向
に沿い連続的に変化させであることが、発熱分布特性の
サインカーブの精度を高める上で好ましいが、これに限
らす幅寸法を長手方向に沿い段階的に異ならせるように
しても良いOtた、帯材6は一側部を直線をなすものと
してカットせず、他側部のみ管カットして幅寸法を変化
させるようにしても良い。In addition, it is preferable that the width of the band material 6 forming the heating element 1 is continuously changed along the longitudinal direction in order to improve the accuracy of the sine curve of the heat generation distribution characteristic, but the width is not limited to this. Alternatively, the width of the strip 6 may be varied stepwise along the longitudinal direction by not cutting a straight line on one side, but cutting only the other side into a tube. You can also do it.
第4図は発熱体1の他の実施例を示す帯材6の展開図で
ある。この実施例においてtri帝材6の両端部6*
+ 6mおよび中央部6bの各部分の材“質を異ならせ
、且つ各部分の寸法1帝材6の長手方向に沿い異なるよ
うに設定することによシ、各部分の電気抵抗値を異なら
せて発熱体lとしてサインカーブを々す発熱分布IVI
性t−得るものとしている。例えば帯材6の両端部gm
。FIG. 4 is a developed view of a band material 6 showing another embodiment of the heating element 1. In this example, both ends 6* of the tri material 6
+6m and the central part 6b are made of different materials, and by setting the dimensions of each part to be different along the longitudinal direction of the material 6, the electrical resistance value of each part can be made different. The heat generation distribution IVI exhibits a sine curve as a heating element l.
It is assumed that the property is obtained. For example, both ends gm of the strip material 6
.
6aはニッケルークロム合金で形成し、中央部6bは鉄
−クロム−アルミニウム合金で形成する。そして、この
帯材6を一定巻径と一定ピッチでコイル状に巻回して発
熱体を形成する。6a is formed from a nickel-chromium alloy, and the central portion 6b is formed from an iron-chromium-aluminum alloy. Then, this band material 6 is wound into a coil shape with a constant winding diameter and a constant pitch to form a heating element.
なお、発熱体の発熱分布特性の精度を高める 事故・
補助的な手段としては、他の実施例で述べた帯 子で
材の各部の材質を異ならせることに加えて、帯 に肉
、・材の厚さを変えることを組合せても良い。発熱
布製・体は発熱状態をコントロールし易く且つ容易に
特定−製造できるようにするためには、コイルの巻き
とし゛ビ、チを一定とすることが好ましい。また
、シ 40図面(−ズヒータとしては単軸形に限らず、
2軸形あ 第るいはカー) IJッジ形のものなど
にも適用でき 示す4る・
図線一本発明のシーズヒータは
以上説明したように、 4図を幅寸法を長手方向に沿
って異ならせることによ る。In addition, to improve the accuracy of the heat distribution characteristics of the heating element.
As an auxiliary measure, in addition to changing the material of each part of the band in the band as described in other embodiments, changing the thickness of the band or material may be combined. fever
Made of cloth, the body is easy to control the heat generation state.
In order to enable specific manufacturing, it is preferable that the windings, width, and width of the coil be constant. In addition, drawings 40 (-) are not limited to single-shaft type heaters.
It can also be applied to 2-shaft type, IJ type, etc.
As explained above, the sheathed heater of the present invention is constructed by making the width dimension of Figure 4 different along the longitudinal direction.
り電気抵抗値を長手方向に変化させfc帯材にて
1・形成した発熱体を備えているので、発熱体は所
端子、定の発熱分布特性を容易に得ることができるとと
もに、発熱体の製作が簡単で製作コストが安価である。By changing the electrical resistance value in the longitudinal direction,
1.Since it is equipped with a formed heating element, the heating element can be placed anywhere.
It is possible to easily obtain constant heat distribution characteristics through terminals, and the heating element is easy to manufacture and the manufacturing cost is low.
また、発熱体を一定ピ、チ管有するコイル林とすれば、
発熱時に一発熱体素子の膨張を逃がすことができて、座
屈による発熱体や外管の破損、発熱体素子の接続部の切
断などのD発生を防止できる。また、同−発熱体素肉厚
を異ならせる、あるいは発熱体素子毎蓼を異ならせると
云う簡単な手段で発熱分生の精度を高めることができる
。従って、9発熱分布特性が要求されるシーズヒータC
極めて優れたものである。Also, if the heating element is a coil forest with a certain number of pipes,
It is possible to release the expansion of one heating element when heat is generated, and it is possible to prevent damage to the heating element or outer tube due to buckling, and to prevent damage such as breakage of the connection part of the heating element. Furthermore, the accuracy of heat distribution can be improved by a simple means of varying the thickness of the heating element element or varying the thickness of each heating element element. Therefore, the sheathed heater C requires 9 heat distribution characteristics.
It is extremely excellent.
)簡単な説明
【
徹
=の発熱体の発熱分布特性を示す線図、第1他の実施例
における発熱体の展開図であ・・発熱体、2・・・外管
、3・・・絶縁粉末、4・・・6・・・帯材。) Brief explanation [A diagram showing the heat distribution characteristics of the heating element of Toru = A developed diagram of the heating element in the first other embodiment...Heating element, 2...Outer tube, 3...Insulation Powder, 4...6...band material.
出願人代理人 弁理士 鈴 江 武 彦特許庁長官
若杉和夫殿
1.事件の表示
特−mscs−154226号
2、発明の名称
シーズヒータ
3、補正をする者
事件との関係 特許出願人
(3L)7) 東京芝ym電気株式会社4、代理人
5、自発補正
7、補正の内容
(11願書添付の図面のうち第1図を別紙の通り訂正す
る。Applicant's agent Patent attorney Takehiko Suzue, Commissioner of the Patent Office
Kazuo Wakasugi 1. Indication of the case - MSCS-154226 No. 2, Name of the invention Sheathed Heater 3, Person making the amendment Relationship to the case Patent applicant (3L) 7) Tokyo Shiba YM Electric Co., Ltd. 4, Agent 5, Voluntary amendment 7, Contents of amendment (Figure 1 of the 11 drawings attached to the application is corrected as shown in the attached sheet.
Claims (1)
熱体を備えたことを特徴とするシーズヒータ。 2、帯材はコイル状に形成されてなる特許請求の範囲第
1項記載のシーズヒータ。[Scope of Claims] 1. A sheathed heater characterized by comprising a heating element formed from a strip material whose width dimension varies in the longitudinal direction. 2. The sheathed heater according to claim 1, wherein the band material is formed in a coil shape.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15422681A JPS5854577A (en) | 1981-09-29 | 1981-09-29 | Sheathed heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15422681A JPS5854577A (en) | 1981-09-29 | 1981-09-29 | Sheathed heater |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5854577A true JPS5854577A (en) | 1983-03-31 |
Family
ID=15579602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15422681A Pending JPS5854577A (en) | 1981-09-29 | 1981-09-29 | Sheathed heater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5854577A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016500798A (en) * | 2012-09-21 | 2016-01-14 | ウ.テ.イ.ア.−エバリュアシオン テクノロジク,アンジェニリ エ アプリカシオン | Equipment for heat treatment of products |
WO2018190197A1 (en) * | 2017-04-12 | 2018-10-18 | 日本発條株式会社 | Sheath heater |
WO2018190193A1 (en) * | 2017-04-12 | 2018-10-18 | 日本発條株式会社 | Heater unit |
-
1981
- 1981-09-29 JP JP15422681A patent/JPS5854577A/en active Pending
Non-Patent Citations (1)
Title |
---|
PROCEEDINGS OF THE INTERNATIONAL SYMPSIUM ONFUEL ROD SIMULATORS DEVEROPMENT AND APPLICATION GATLINBURG TENNESSEE=1980 * |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016500798A (en) * | 2012-09-21 | 2016-01-14 | ウ.テ.イ.ア.−エバリュアシオン テクノロジク,アンジェニリ エ アプリカシオン | Equipment for heat treatment of products |
WO2018190197A1 (en) * | 2017-04-12 | 2018-10-18 | 日本発條株式会社 | Sheath heater |
WO2018190193A1 (en) * | 2017-04-12 | 2018-10-18 | 日本発條株式会社 | Heater unit |
JP2018181586A (en) * | 2017-04-12 | 2018-11-15 | 日本発條株式会社 | Sheath heater |
JP2018181584A (en) * | 2017-04-12 | 2018-11-15 | 日本発條株式会社 | Heater unit |
CN110547041A (en) * | 2017-04-12 | 2019-12-06 | 日本发条株式会社 | Sheath heater |
CN110547042A (en) * | 2017-04-12 | 2019-12-06 | 日本发条株式会社 | Heater unit |
EP3612000A4 (en) * | 2017-04-12 | 2021-01-13 | NHK Spring Co., Ltd. | Heater unit |
CN110547041B (en) * | 2017-04-12 | 2022-06-03 | 日本发条株式会社 | Sheath heater |
CN110547042B (en) * | 2017-04-12 | 2022-06-07 | 日本发条株式会社 | Heater unit |
US11477858B2 (en) | 2017-04-12 | 2022-10-18 | Nhk Spring Co., Ltd. | Sheath heater |
US11490464B2 (en) | 2017-04-12 | 2022-11-01 | Nhk Spring Co., Ltd. | Heater unit |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3548158A (en) | Heat transfer device | |
WO2003007313A3 (en) | Corrugated metal ribbon heating element | |
JPH0221589A (en) | Once-through heater | |
JPS5854577A (en) | Sheathed heater | |
US4272668A (en) | Small round air stream heating unit | |
CA2114340C (en) | Sheathed heater | |
US20100237059A1 (en) | Resistive heating element for electrical heating | |
US2632833A (en) | Heating element with internal return lead | |
JPS5829588Y2 (en) | Sea heater | |
KR100367057B1 (en) | Cartridge type three phases heater and manufacture method | |
JPS6213348Y2 (en) | ||
US2362152A (en) | Encased heating unit | |
US3426306A (en) | Thermal switch assembly having juxtaposed auxiliary heater | |
JPS6134238B2 (en) | ||
CN217407820U (en) | Electron cigarette heater and electron cigarette | |
JPH07302718A (en) | Spiral coil device and its manofacture | |
JPS6118630Y2 (en) | ||
GB1028398A (en) | Improvements in electric heater arrangements | |
JPS5844563Y2 (en) | wire wound resistor | |
US3175068A (en) | Heating apparatus for material subjected to super high pressure | |
JPS596629Y2 (en) | Heater terminal device | |
FR2360836A1 (en) | Electric water heater giving immediate delivery - is energised by LV current and water carrying pipe is made of resistance alloy to give direct heating | |
JPH0110877Y2 (en) | ||
JPS55125421A (en) | Thermocouple element | |
JPS54117955A (en) | Sheathed heater |