JPH09145703A - Open oven for high-speed cooling - Google Patents
Open oven for high-speed coolingInfo
- Publication number
- JPH09145703A JPH09145703A JP32983195A JP32983195A JPH09145703A JP H09145703 A JPH09145703 A JP H09145703A JP 32983195 A JP32983195 A JP 32983195A JP 32983195 A JP32983195 A JP 32983195A JP H09145703 A JPH09145703 A JP H09145703A
- Authority
- JP
- Japan
- Prior art keywords
- main body
- oven
- separation column
- temperature
- container 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.)
- Pending
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 17
- 238000000926 separation method Methods 0.000 claims abstract description 18
- 239000011810 insulating material Substances 0.000 claims abstract description 14
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000005259 measurement Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract 1
- 238000004458 analytical method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004817 gas chromatography Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/26—Conditioning of the fluid carrier; Flow patterns
- G01N30/28—Control of physical parameters of the fluid carrier
- G01N30/30—Control of physical parameters of the fluid carrier of temperature
- G01N2030/3084—Control of physical parameters of the fluid carrier of temperature ovens
Landscapes
- Sampling And Sample Adjustment (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、たとえばガスクロ
マトグラフィ装置に設けられる高速冷却用開放オーブン
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an open oven for fast cooling provided in, for example, a gas chromatography device.
【０００２】[0002]
【発明が解決しようとする課題】ガスクロマトグラフィ
装置における分離カラムを昇温するために設けられる昇
温オーブンは、容器本体内を断熱材で覆い、蓋体で内部
を密閉した状態にて内部に設けたヒータによって効率よ
く昇温されていた。A temperature rising oven provided for heating a separation column in a gas chromatography apparatus is provided inside a container body covered with a heat insulating material and sealed with a lid. The temperature was raised efficiently by the heater.
【０００３】このような閉鎖系内での加熱では、断熱材
によって蓄えられる熱量が大きい。従って、分離カラム
を所定の温度に昇温させた後、次回の測定のために温度
を降下させる場合、その断熱材に蓄えられた熱を全て除
去する必要があり、ヒータをオフにして後、元の温度ま
で戻すのに長時間を要していた。そのため、連続測定時
の作業能率が低いという難点があった。In heating in such a closed system, a large amount of heat is stored by the heat insulating material. Therefore, after raising the temperature of the separation column to a predetermined temperature, when lowering the temperature for the next measurement, it is necessary to remove all the heat stored in the heat insulating material, and after turning off the heater, It took a long time to return to the original temperature. Therefore, there is a problem that the work efficiency during continuous measurement is low.
【０００４】本発明は、このような実情に鑑みてなさ
れ、昇温後の冷却時間の短縮化を図った高速冷却用開放
オーブンを提供することを目的としている。The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an open oven for high-speed cooling in which the cooling time after temperature rise is shortened.
【０００５】[0005]
【課題を解決するための手段】本発明は上述の課題を解
決するための手段を以下のように構成している。すなわ
ち、容器本体内に断熱材が内張りされ、その容器本体の
内部に、分離カラムと、加温用のヒータと、ファンとを
設けるとともに、その容器本体を空気の出入可能に構成
し、かつ、その開放状態下で前記分離カラムの加温をお
こなうことを特徴としている。According to the present invention, means for solving the above-mentioned problems are constituted as follows. That is, a heat insulating material is lined in the container body, a separation column, a heater for heating, and a fan are provided inside the container body, and the container body is configured to allow air to flow in and out, and The separation column is heated under the open state.
【０００６】このような構成により、開放状態下の容器
本体内で外気を導入しつつ分離カラムの加温がおこなわ
れるため、断熱材に吸収される熱量が少なく、昇温後の
冷却を速やかに済ませることができる。With such a structure, since the separation column is heated while introducing the outside air into the container body in the open state, the heat quantity absorbed by the heat insulating material is small, and the cooling after the temperature rise is promptly performed. I can finish it.
【０００７】[0007]
【発明の実施の形態】以下に本発明の高速冷却用開放オ
ーブンの好ましい実施の形態を図面に基づいて詳細に説
明する。図１は高速冷却用開放オーブンの断面図で、符
号１は方形状に形成された容器本体、２はその容器本体
１に内張りされた断熱材、３はサンプル注入口、４は分
離カラム、５は検出器、６はその分離カラム昇温用のヒ
ータ、６１はヒータ用配線、７はファン、８は仕切壁、
９は仕切壁８に取り付けられた支持部材８１上に設けら
れたファン駆動用のモータである。BEST MODE FOR CARRYING OUT THE INVENTION A preferred embodiment of an open oven for rapid cooling of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a cross-sectional view of an open oven for high-speed cooling. Reference numeral 1 is a rectangular container body, 2 is a heat insulating material lined in the container body 1, 3 is a sample inlet, 4 is a separation column, and 5 is a separation column. Is a detector, 6 is a heater for raising the temperature of the separation column, 61 is heater wiring, 7 is a fan, 8 is a partition wall,
Reference numeral 9 denotes a fan driving motor provided on a support member 81 attached to the partition wall 8.
【０００８】１０はその容器本体１の前部に一体化され
た蓋体部、１１は通気用の開口、１２は容器本体１の開
口１ａに対して接離自在に設けられる蓋体、１３は蓋
板、１４はその蓋板１３に内張りされた断熱材、１５は
その蓋体１２を矢印Ｃ方向に移動させるためのエアシリ
ンダ、１６はそのエアシリンダ１５を支持する支持部
材、１７は蓋体１２を案内するために支持部材１６に形
成されたガイド孔に摺動自在に嵌挿されるガイドロッド
である。Reference numeral 10 is a lid portion integrated with the front portion of the container body 1, 11 is an opening for ventilation, 12 is a lid body which is provided so as to be freely attached to and detached from the opening 1a of the container body 1, and 13 is A cover plate, 14 is a heat insulating material lined to the cover plate 13, 15 is an air cylinder for moving the cover body 12 in the direction of arrow C, 16 is a support member for supporting the air cylinder 15, and 17 is a cover body. The guide rod is slidably inserted into a guide hole formed in the support member 16 for guiding the guide rod 12.
【０００９】このような構成により、分離カラム４を加
温するときには、図２（Ａ）に示すように、蓋体１２を
容器本体１の開口１ａに近接させた状態としてすき間ｄ
1 を小さく設定し、ファン７によって空気を外部から取
り込み循環させつつ分離カラム４の昇温を図る。この昇
温過程では、ファン７によって万遍なく分離カラム４を
昇温させることができるが、常に外気を導入しつつ加温
がおこなわれるため、断熱材２，１４の昇温は低く抑え
られる。With such a structure, when heating the separation column 4, as shown in FIG. 2 (A), the lid 12 is kept close to the opening 1a of the container body 1 and the gap d is provided.
1 is set small, and the temperature of the separation column 4 is increased while the air is taken in from the outside by the fan 7 and circulated. In the temperature raising process, the temperature of the separation column 4 can be uniformly raised by the fan 7, but the temperature of the heat insulating materials 2 and 14 can be kept low because the heating is performed while always introducing the outside air.
【００１０】一方、冷却時には、蓋体１２と容器本体１
の開口１ａとのすき間ｄ2 を大きく設定し、ファン７に
よって急速に外気を取り込みかつ排出させることによ
り、短時間で容器本体１の冷却を完了することができ
る。これは、上述のように、昇温時に断熱材２，１４に
蓄えられる熱量が低く抑えられているためである。On the other hand, during cooling, the lid 12 and the container body 1
By setting a large gap d 2 with respect to the opening 1a and rapidly taking in and discharging the outside air by the fan 7, the cooling of the container body 1 can be completed in a short time. This is because, as described above, the amount of heat stored in the heat insulating materials 2 and 14 at the time of temperature rise is kept low.
【００１１】このように、常に開放した状態下で出入す
る空気の温度とヒータ６からの熱供給とのヒートバラン
スにより温調するようにしたので、断熱材２，１４によ
る温調効果に依存することのない分離カラム４の昇温が
可能となり、冷却時間の短縮化を図ることができ、連続
測定時の分析サイクルタイムを短くして高能率な測定を
おこなうことができる。As described above, since the temperature is controlled by the heat balance between the temperature of the air flowing in and out and the heat supply from the heater 6 in an always open state, it depends on the temperature control effect of the heat insulating materials 2 and 14. It is possible to raise the temperature of the separation column 4 without any problem, the cooling time can be shortened, and the analysis cycle time in continuous measurement can be shortened to perform highly efficient measurement.
【００１２】なお、外気を容器本体１内に導入するため
に、蓋体１２と開口１ａとの間にすき間を設ける代わり
に、容器本体１の適所に孔を開設し、その孔径を調整で
きるようにしてもよく、外気を導入するためのすき間を
形成するための構成は適宜に設定されてよい。Incidentally, in order to introduce the outside air into the container body 1, instead of providing a gap between the lid 12 and the opening 1a, a hole is opened at an appropriate place of the container body 1 so that the hole diameter can be adjusted. Alternatively, the configuration for forming the gap for introducing the outside air may be set appropriately.
【００１３】[0013]
【発明の効果】以上説明したように、本発明の高速冷却
用開放オーブンによれば、外気を導入しつつ分離カラム
の加温をおこなうので、断熱材の昇温を低く抑えること
ができ、昇温後の冷却時間を短縮することができる。こ
れにより、分析サイクルタイムを短くして連続測定の能
率向上を図ることができる。As described above, according to the open oven for high-speed cooling of the present invention, the separation column is heated while introducing the outside air, so that the temperature rise of the heat insulating material can be suppressed to a low level. The cooling time after heating can be shortened. This makes it possible to shorten the analysis cycle time and improve the efficiency of continuous measurement.
【図１】本発明の高速冷却用開放オーブンの一実施形態
を示す断面図である。FIG. 1 is a sectional view showing an embodiment of an open oven for rapid cooling of the present invention.
【図２】（Ａ）は同加温時の説明図、（Ｂ）は冷却時の
説明図である。FIG. 2 (A) is an explanatory diagram at the time of heating and FIG. 2 (B) is an explanatory diagram at the time of cooling.
１…容器本体、２，１４…断熱材、４…分離カラム、６
…ヒータ、７…ファン。1 ... Container body, 2, 14 ... Insulation material, 4 ... Separation column, 6
... heater, 7 ... fan.
Claims (1)
容器本体の内部に、分離カラムと、加温用のヒータと、
ファンとを設けるとともに、その容器本体を空気の出入
可能に構成し、かつ、その開放状態下で前記分離カラム
の加温をおこなうことを特徴とする高速冷却用開放オー
ブン。1. A heat insulating material is lined inside a container body, and a separation column, a heater for heating are provided inside the container body.
An open oven for high-speed cooling, comprising a fan, a container body capable of allowing air to flow in and out, and heating the separation column under the open state.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32983195A JPH09145703A (en) | 1995-11-24 | 1995-11-24 | Open oven for high-speed cooling |
| US08/752,640 US5807426A (en) | 1995-11-24 | 1996-11-19 | Gas chromatography apparatus with temperature controlled chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32983195A JPH09145703A (en) | 1995-11-24 | 1995-11-24 | Open oven for high-speed cooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09145703A true JPH09145703A (en) | 1997-06-06 |
Family
ID=18225724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32983195A Pending JPH09145703A (en) | 1995-11-24 | 1995-11-24 | Open oven for high-speed cooling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09145703A (en) |
-
1995
- 1995-11-24 JP JP32983195A patent/JPH09145703A/en active Pending
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