JPS64603Y2 - - Google Patents
Info
- Publication number
- JPS64603Y2 JPS64603Y2 JP1981097019U JP9701981U JPS64603Y2 JP S64603 Y2 JPS64603 Y2 JP S64603Y2 JP 1981097019 U JP1981097019 U JP 1981097019U JP 9701981 U JP9701981 U JP 9701981U JP S64603 Y2 JPS64603 Y2 JP S64603Y2
- Authority
- JP
- Japan
- Prior art keywords
- heat
- heating furnace
- heated
- temperature
- main body
- 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
- 238000010438 heat treatment Methods 0.000 claims description 35
- 238000005338 heat storage Methods 0.000 claims description 12
- 239000011810 insulating material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000011449 brick Substances 0.000 description 3
- 239000003779 heat-resistant material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- HMDDXIMCDZRSNE-UHFFFAOYSA-N [C].[Si] Chemical compound [C].[Si] HMDDXIMCDZRSNE-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Description
【考案の詳細な説明】
本考案は試料を収納した円筒形状、または角柱
形状の容器を被加熱体として、これを電気により
急速昇温加熱する分析装置用加熱炉の改良に関す
る。[Detailed Description of the Invention] The present invention relates to an improvement in a heating furnace for an analyzer that uses a cylindrical or prismatic container containing a sample as an object to be heated, and rapidly heats it by electricity.
鉱石、粉粒体、金属片、有機材、油脂類などの
試料を加熱し、これを乾留、焼成、分解、抽出な
どしてその成分分析に用いる加熱炉は、加熱昇温
速度ならびに昇温時の温度分布の安定性が望ま
れ、かつ目標最高温度においては、オーバーラン
を防ぎつつ、温度を均一に保持することなど、目
標温度パターンに対して追従性と安定性が望まれ
る。 Heating furnaces are used to heat samples such as ores, granules, metal pieces, organic materials, oils and fats, and perform carbonization, calcination, decomposition, extraction, etc. to analyze their components. A stable temperature distribution is desired, and at the target maximum temperature, followability and stability are desired for the target temperature pattern, such as maintaining a uniform temperature while preventing overrun.
一般に、この種加熱炉は、
(イ) 熱源として、ニクロム線ヒーターやシースヒ
ーターなどの電気抵抗線発熱体を耐熱絶縁材
（レンガ、あるいは碍子、又はマグネシア粉）
により被加熱体の周辺に保持し、空気伝熱を主
とする加熱炉方式
(ロ) 赤外線などの熱線を発する発熱体に光反射鏡
を組み合わせて被加熱体の周辺に配置し熱線に
より加熱する方式
(ハ) 炭化珪素発熱体を被加熱体の周辺に配置し、
更にその外周部を耐熱レンガあるいはセラミツ
クなどの断熱材で囲繞して加熱する方式
(ニ) 高周波あるいは低周波などの電磁波により誘
導加熱する方式
などがある。 In general, this type of heating furnace uses: (a) As a heat source, an electric resistance wire heating element such as a nichrome wire heater or a sheath heater is used with a heat-resistant insulating material (brick, insulator, or magnesia powder).
Heating furnace method that mainly uses air heat transfer by holding the object around the heated object (b) A heating element that emits heat rays such as infrared rays is combined with a light reflecting mirror and is placed around the object to be heated and heated by the hot rays. Method (c) A silicon carbide heating element is placed around the heated object,
Furthermore, there is a method in which the outer periphery is heated by surrounding it with a heat insulating material such as heat-resistant bricks or ceramics, and (d) a method in which induction heating is performed using electromagnetic waves such as high frequency or low frequency waves.
(イ)の電気抵抗線発熱体方式は、耐熱絶縁材も合
わせて加熱し、雰囲気を加熱して被加熱体を間接
加熱することから昇温時は耐熱材の顕熱相当の熱
量をあらかじめ加えないと雰囲気は昇温出来ず、
被加熱体の昇温は遅れを生じ、又被加熱体が目標
値に達した時には耐熱材は前記目標値以上に到達
しているので、荷電圧を低くしても被加熱体は更
に加熱されオーバーランするなど昇温特性の制御
が困難な欠点を有する。更に急速冷却をする場
合、耐熱材が蓄熱しているために速度調整が困難
である。 The electric resistance wire heating element method (a) heats the heat-resistant insulating material as well, heats the atmosphere, and indirectly heats the object to be heated. Therefore, when raising the temperature, an amount of heat equivalent to the sensible heat of the heat-resistant material is added in advance. Without it, the atmosphere cannot be heated,
There is a delay in the temperature rise of the heated object, and when the heated object reaches the target value, the heat-resistant material has reached the target value or higher, so even if the charging voltage is lowered, the heated object will be heated further. It has the disadvantage that it is difficult to control the temperature rise characteristics, such as overrun. Furthermore, when performing rapid cooling, it is difficult to adjust the speed because heat is accumulated in the heat-resistant material.
また(ロ)の赤外線など熱線の輻射熱を利用した加
熱炉は、熱線を利用する為昇温特性と応答が早い
長所を有しているが、被加熱体は表面で熱線を直
接吸収し発熱する為に雰囲気の温度は不安定、不
均一であり、又熱線を吸収する被加熱体表面の熱
線分布がそのまま温度分布を生じる欠点を有して
いる。 In addition, heating furnaces that use radiant heat from hot rays such as infrared rays (b) have the advantage of temperature-raising characteristics and quick response because they use hot rays, but the heated object directly absorbs the hot rays on its surface and generates heat. Therefore, the temperature of the atmosphere is unstable and non-uniform, and the heat ray distribution on the surface of the heated object that absorbs the heat rays causes a temperature distribution.
(ハ)の炭珪素発熱体は発熱体の電気抵抗が温度に
より大きく変化するので低温度での温度制御が困
難であり、低温から昇温を制御する必要のある加
熱炉には不適当である。 The electrical resistance of the carbon-silicon heating element (c) changes greatly depending on the temperature, making it difficult to control the temperature at low temperatures, making it unsuitable for heating furnaces that require control of temperature rise from low temperatures. .
(ニ)の電磁誘導加熱方式は被加熱体の形状、寸
法、材料などに制約があり、精密な昇温温度制御
は困難であると共に装置のコストが高くなる欠点
がある。 The electromagnetic induction heating method (iv) has the disadvantage that there are restrictions on the shape, size, material, etc. of the heated object, making it difficult to precisely control the heating temperature and increasing the cost of the device.
本考案はこれらの欠点を排除するものであつ
て、被加熱体を密封して収納する加熱炉本体と、
上記被加熱体を囲繞するようにして加熱炉本体内
に配設される複数の赤外線ランプと、同ランプ全
体を囲繞し該赤外線ランプと加熱炉本内壁との間
隙に配設される筒状の蓄熱板とからなることを特
徴とするものであつて、発熱体に電源電圧に対し
応答性の良い赤外線ランプを使用して赤外線を主
とした熱線を雰囲気加熱の熱源とし、該当雰囲気
により被加熱体を均一に加熱し、昇温応答性と温
度の均一化、安定性を満足する加熱炉を提案する
ものである。 The present invention eliminates these drawbacks, and includes a heating furnace body that seals and stores the object to be heated;
A plurality of infrared lamps are arranged in the heating furnace main body so as to surround the object to be heated, and a cylindrical infrared lamp is arranged in a gap between the infrared lamps and the inner wall of the heating furnace main body and surrounds the entire lamps. It is characterized by consisting of a heat storage plate, which uses an infrared lamp with good response to the power supply voltage as a heating element, and uses a heat ray mainly infrared as the heat source for atmosphere heating, and heats the atmosphere depending on the atmosphere. This project proposes a heating furnace that uniformly heats the body and satisfies temperature increase responsiveness, temperature uniformity, and stability.
以下本考案を第１図および第２図に示す一実施
例について説明する。 The present invention will be described below with reference to an embodiment shown in FIGS. 1 and 2.
１は密封可能な空間部を有する加熱炉本体であ
つて、支持台２に支承された試料Ｓを収納する円
筒状の容器３が本体１内に配設されている。 Reference numeral 1 denotes a heating furnace main body having a sealable space, and a cylindrical container 3 for storing a sample S supported on a support stand 2 is disposed within the main body 1.
赤外線ランプ４は上記容器３を囲繞するように
複数本（図では８本）垂直にかつ等間隔で平行に
配設されている。 A plurality of infrared lamps 4 (eight in the figure) are arranged vertically and in parallel at equal intervals so as to surround the container 3.
５は薄板金属性の波形の板よりなり円筒状に形
成された蓄熱板であつて、上記複数本の赤外線ラ
ンプ４をその内側に納めるようにして加熱炉本体
１と赤外線ランプ４との間隙に配設されており、
更に加熱炉本体１と蓄熱板５との間には空気層６
が形成されている。 Reference numeral 5 denotes a heat storage plate formed into a cylindrical shape made of a corrugated sheet metal plate, which is installed in the gap between the heating furnace main body 1 and the infrared lamps 4 in such a manner that the plurality of infrared lamps 4 are housed inside the heat storage plate. It is arranged,
Furthermore, there is an air layer 6 between the heating furnace body 1 and the heat storage plate 5.
is formed.
なお、加熱炉本体１の内面には通常断熱材７が
全面に亘り施されているが、必要に応じ断熱材を
貼布する。 Note that although the inner surface of the heating furnace body 1 is normally covered with a heat insulating material 7 over the entire surface, a heat insulating material may be applied if necessary.
このように構成した加熱炉において、赤外線ラ
ンプに通電し、容器３および試料Ｓの昇温を行な
う。 In the heating furnace configured in this manner, the temperature of the container 3 and the sample S is raised by energizing the infrared lamp.
上記したとおり蓄熱板５は薄板金属性の板であ
るので、その熱容量は小さい。従つて蓄熱板５を
含め、それによつて囲まれた加熱炉本体１の中央
部分の雰囲気の熱容量は小さく、赤外線ランプ４
の通電によつて雰囲気温度はすみやかに上昇しそ
の温度を保つことが容易となる。 As described above, since the heat storage plate 5 is a thin metal plate, its heat capacity is small. Therefore, the heat capacity of the atmosphere in the central part of the heating furnace body 1 surrounded by the heat storage plate 5 is small, and the infrared lamp 4
By energizing the atmosphere, the temperature of the atmosphere rises quickly and it becomes easy to maintain that temperature.
従つて、この雰囲気中におかれる容器３は極め
て安定した雰囲気中にあり、一定の昇温または降
温が容器３の全面均一に行なわれることになる。 Therefore, the container 3 placed in this atmosphere is in an extremely stable atmosphere, and the temperature is uniformly raised or lowered over the entire surface of the container 3.
また赤外線ランプ４と加熱炉本体１内面との間
に蓄熱板５が介装されているので、赤外線ランプ
４の熱が直接加熱炉本体１の内面に達することが
なく、熱の伝達は空気層６を介して行なわれる
為、加熱炉本体１を介しての熱の放出が少なくて
すむので、従来のような熱容量の大きい耐熱レン
ガ等によつて内面を断熱する必要がなく、断熱材
７としては熱容量の小さい空気断熱層に富む軽質
断熱材でこと足りるので、この点からも熱応答性
が向上する。 Furthermore, since the heat storage plate 5 is interposed between the infrared lamp 4 and the inner surface of the heating furnace main body 1, the heat of the infrared lamp 4 does not directly reach the inner surface of the heating furnace main body 1, and the heat transfer is limited to the air layer. 6, the amount of heat released through the heating furnace body 1 is small, so there is no need to insulate the inner surface with heat-resistant bricks, etc., which have a large heat capacity as in the past, and it is possible to Since all that is needed is a light heat insulating material rich in air heat insulating layers with a small heat capacity, the thermal response is also improved from this point of view.
又、被加熱体へ発せられる赤外線は従来例(ロ)の
輻射熱を利用した加熱炉と同様に進むが、蓄熱板
に達した赤外線はここで吸収され、蓄熱板の加熱
に消費される。反射があるとしてもアトランダム
である。結果として本願考案は蓄熱板内側の雰囲
気加熱となり、雰囲気の温度は均一であり、かつ
直接被加熱体へ達する赤外線が極端に減少し、被
加熱体表面の熱線分布による温度分布のばらつき
は問題にならない。 Further, the infrared rays emitted to the object to be heated proceed in the same way as in the heating furnace using radiant heat in the conventional example (b), but the infrared rays that reach the heat storage plate are absorbed here and consumed to heat the heat storage plate. Even if there is a reflection, it is at random. As a result, the present invention heats the atmosphere inside the heat storage plate, the temperature of the atmosphere is uniform, and the infrared rays that directly reach the object to be heated are extremely reduced, so that variations in temperature distribution due to the distribution of hot rays on the surface of the object to be heated are no longer a problem. No.
第１図および第２図は本考案の一実施例を示す
加熱炉の説明図であつて、第１図は第２図の−
断面図、第２図は第１図の−端面図であ
る。
１……加熱炉本体、３……容器、４……赤外線
ランプ、５……蓄熱板、６……空気層、７……断
熱材。
1 and 2 are explanatory diagrams of a heating furnace showing one embodiment of the present invention, and FIG.
The sectional view, FIG. 2, is a -end view of FIG. 1... Heating furnace main body, 3... Container, 4... Infrared lamp, 5... Heat storage plate, 6... Air layer, 7... Heat insulating material.
Claims (1)
記被加熱体を囲繞するようにして加熱炉本体内に
配設される複数の赤外線ランプと、同ランプ全体
を囲繞し該赤外線ランプと加熱炉本内壁との間隙
に配設される筒状の蓄熱板とからなることを特徴
とする分析装置用加熱炉。 A heating furnace body that seals and stores an object to be heated, a plurality of infrared lamps arranged in the heating furnace main body so as to surround the object to be heated, and a plurality of infrared lamps that surround the entire lamp and heat it together with the infrared lamps. A heating furnace for an analytical device, characterized by comprising a cylindrical heat storage plate disposed in a gap between the inner wall of the furnace main body and the inner wall of the furnace main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9701981U JPS582661U (en) | 1981-06-30 | 1981-06-30 | Heating furnace for analytical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9701981U JPS582661U (en) | 1981-06-30 | 1981-06-30 | Heating furnace for analytical equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS582661U JPS582661U (en) | 1983-01-08 |
| JPS64603Y2 true JPS64603Y2 (en) | 1989-01-09 |
Family
ID=29891844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9701981U Granted JPS582661U (en) | 1981-06-30 | 1981-06-30 | Heating furnace for analytical equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS582661U (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62138954U (en) * | 1986-02-25 | 1987-09-02 | ||
| JPS6368004A (en) * | 1986-09-08 | 1988-03-26 | 井関農機株式会社 | Runnig transmission gear of combine |
| JPH089341B2 (en) * | 1987-04-10 | 1996-01-31 | 井関農機株式会社 | Mobile transmission equipment for mobile agricultural machinery |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54125288U (en) * | 1978-02-22 | 1979-09-01 | ||
| JPS6139967Y2 (en) * | 1980-01-11 | 1986-11-15 |
-
1981
- 1981-06-30 JP JP9701981U patent/JPS582661U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS582661U (en) | 1983-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4307277A (en) | Microwave heating oven | |
| GB1433478A (en) | Electrical heating apparatus | |
| US10948235B2 (en) | Sintering furnace for components made of sintered material, in particular, dental components | |
| CN1246251C (en) | Mixed method of firing of ceramics | |
| JPS64603Y2 (en) | ||
| US9976807B2 (en) | Device for heat treatment | |
| JPS5925937B2 (en) | microwave heating furnace | |
| GB1537562A (en) | High pressure electrical resistance heated furnace | |
| US7223950B2 (en) | Microwave burning furnace including heating element having two types of materials | |
| WO1993016571A1 (en) | Microwave processing materials | |
| JPH0854285A (en) | Black body furnace | |
| JPH07318262A (en) | Microwave baking furnace, and baking kiln | |
| JP2019520175A (en) | Dental scissors | |
| JPS60159591A (en) | Heating furnace | |
| US4214117A (en) | Furnace heated by radiation | |
| US5072094A (en) | Tube furnace | |
| JPH023152Y2 (en) | ||
| JPH0136883Y2 (en) | ||
| JPS5833662Y2 (en) | Far infrared heating device | |
| JPS5839358Y2 (en) | microwave heating furnace | |
| JPH0336919Y2 (en) | ||
| JPS6124770B2 (en) | ||
| GB1537563A (en) | High pressure electrical resistance heated furnace | |
| JPH01280227A (en) | Black body furnace | |
| JP2939279B2 (en) | Surface heating device |