JP3453282B2 - Analyzer with cooling device - Google Patents
Analyzer with cooling deviceInfo
- Publication number
- JP3453282B2 JP3453282B2 JP18579497A JP18579497A JP3453282B2 JP 3453282 B2 JP3453282 B2 JP 3453282B2 JP 18579497 A JP18579497 A JP 18579497A JP 18579497 A JP18579497 A JP 18579497A JP 3453282 B2 JP3453282 B2 JP 3453282B2
- Authority
- JP
- Japan
- Prior art keywords
- sample
- heat exchange
- sample liquid
- line
- flow cell
- 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 - Fee Related
Links
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
- Sampling And Sample Adjustment (AREA)
- Optical Measuring Cells (AREA)
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【発明の属する技術分野】この発明は、フローセルに試
料液を導入しバッチ式で測定を行う冷却装置付分析計に
関する。TECHNICAL FIELD The present invention relates to a cooling device with a spectrometer for performing measure batchwise by introducing the sample solution to the flow cell.
【０００２】[0002]
【従来の技術および発明が解決しようとする課題】フロ
ーセルに試料液を導入して測定を行う場合、測定方法に
よっては、試料液の液温によって測定値が大きな影響を
受けることがあり、特に、近赤外分光法などの分光学的
方法においてはその影響が顕著である。When performing measurement by introducing a sample solution into the flow cell of the Prior Art and 0006], by the measuring method, may measure the liquid temperature of the sample liquid greatly affected, especially The effect is remarkable in spectroscopic methods such as near infrared spectroscopy.
【０００３】例えば、塩酸−過酸化水素水溶液の場合、
高温になると多量の気泡が発生し、脱泡槽を経由させて
も完全に脱泡させるのは難しく、また、サンプリングラ
インに設けた電磁弁の開閉動作のショックによっても微
細な気泡が発生することがあり、これらの気泡によって
測定データが干渉影響を受けることが多い。従って、よ
り正確な測定を行うためには、液温を下げ、なおかつ、
温調して測定することが望ましい。For example, in the case of hydrochloric acid-hydrogen peroxide aqueous solution,
A large amount of bubbles are generated at high temperature, and it is difficult to completely remove bubbles even through a defoaming tank.Fine bubbles are also generated due to the shock of the opening / closing operation of the solenoid valve installed in the sampling line. These bubbles often interfere with the measurement data. Therefore, in order to perform more accurate measurement, lower the liquid temperature, and
It is desirable to measure the temperature.
【０００４】そのため、従来では、分析計に試料を導入
する前の処理手段として比較的大型の冷却器または温調
装置を設けて液温の調整を行っていた。しかし、これら
の装置は一般に大型で高額であり設置のためのスペース
を必要としていた。Therefore, conventionally, a relatively large cooler or a temperature controller was provided as a processing means before introducing the sample into the analyzer to adjust the liquid temperature. However, these devices are generally large and expensive and require space for installation.
【０００５】この発明は、上述の事柄に留意してなされ
たもので、高温の試料液を、大型の冷却器や温調装置を
経由させることなく、安定に信頼性よく測定することが
できるコスト安な冷却装置付分析計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 matters, and is a cost for stably and reliably measuring a high-temperature sample liquid without passing through a large-sized cooler or a temperature controller. It is intended to provide an inexpensive analyzer with a cooling device.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、この発明の冷却装置付分析計は、フローセルに試料
液を導入しバッチ式で測定を行う分析計であって、試料
液供給源からフローセルへ至るサンプリングラインの上
流側には流路切換部を設けるとともに、下流側には熱交
換部を設け、フローセルから試料液供給源へ至る還流ラ
インと前記流路切換部とを結ぶ循環ラインを設け、測定
中は、次の測定分の試料液を前記熱交換部において停止
させた状態で冷却する一方、試料液供給源からの試料液
が前記流路切換部、循環ライン、還流ラインを経て試料
液供給源へ循環するように構成してある。To achieve the above object, according to an aspect of the cooling device with analyzer of this invention is a spectrometer for performing measure batchwise by introducing the sample solution to the flow cell, the sample
Above the sampling line from the liquid supply source to the flow cell
Rutotomoni provided passage switching section in the flow side, heat exchange on the downstream side
A replacement section is provided to allow the reflux flow from the flow cell to the sample liquid supply source.
In the provided circulation line connecting the said flow path switching section, during measurement, stop the next sample solution measurement component in the heat exchange section
Sample solution from the sample solution supply source while being cooled
Through the flow path switching unit, circulation line and reflux line
Oh Ru configured to be circulated to the liquid supply source.
【０００７】この発明では、前記熱交換部と前記フロー
セルとの間に脱泡槽を設けるのが好ましい。In the present invention, it is preferable to provide a defoaming tank between the heat exchange section and the flow cell.
【０００８】[0008]
【発明の実施の形態】以下、この発明の実施形態を、図
面に基づいて説明する。図１はフローセルに導入される
高温で気泡の発生しやすい多成分水溶液等の試料液をも
安定に測定することのできるバッチ式の冷却装置付分析
計の第１の実施形態を示す構成図である。なお、この実
施形態では、熱交換部における冷却手段として、試料液
分析計本体ケース内に常設の排気ファンを利用してい
る。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing a first embodiment of a batch-type cooling device-equipped analyzer capable of stably measuring a sample liquid such as a multi-component aqueous solution which is likely to generate bubbles at high temperature introduced into a flow cell. is there. In this embodiment, a permanent exhaust fan in the sample liquid analyzer main body case is used as the cooling means in the heat exchange section.
【０００９】図１において、符号１は高温の試料液（例
えば硫酸−過酸化水素水溶液のような薬液）Ｓを貯留す
るための試料槽（試料液供給源の一例）、２は吸引ポン
プ、３は試料液分析計本体ケースで、このケース３内に
は、当該ケース３内の排気を行う排気ファン４、流路切
換部５、フローセル６、多変量分析を行うために分光器
等の光学部品で構成された光源部７、検出器８および信
号処理部９がそれぞれ設けられている。In FIG. 1, reference numeral 1 is a sample tank (an example of a sample liquid supply source) for storing a high-temperature sample liquid (for example, a chemical liquid such as sulfuric acid-hydrogen peroxide aqueous solution) S, 2 is a suction pump, 3 Is a sample liquid analyzer main body case. Inside the case 3, an exhaust fan 4 for exhausting the inside of the case 3, a flow path switching unit 5, a flow cell 6, and a spectroscopic unit for performing multivariate analysis. A light source unit 7, a detector 8 and a signal processing unit 9 each of which is composed of optical components such as a container are provided.
【００１０】１０ａは、試料槽１から流路切換部５に至
る上流側のサンプリングライン、１０ｂは、流路切換部
５からフローセル６に至る下流側のサンプリングライン
で、この下流側のサンプリングライン１０ｂの一部を螺
旋状に巻回させて熱交換部１１が形成されている。この
熱交換部１１は排気ファン４に近接状態で配置されてお
り、例えば、チューブを螺旋状に巻回させて熱交換部１
１の表面積を大きく設定してある。なお、この実施形態
では流路切換部５として三方電磁弁を採用している。こ
の三方電磁弁５は、フローセル６からの試料液を排出す
る排出ライン１４と試料液Ｓの還流ライン１２に通じる
循環ライン１３にも接続されている。Reference numeral 10a denotes an upstream sampling line extending from the sample tank 1 to the flow channel switching unit 5, and 10b denotes a downstream sampling line extending from the flow channel switching unit 5 to the flow cell 6, which is a downstream sampling line 10b. The heat exchange part 11 is formed by spirally winding a part thereof. The heat exchanging unit 11 is arranged in the vicinity of the exhaust fan 4, and for example, the heat exchanging unit 1 is formed by spirally winding a tube.
The surface area of 1 is set large. In this embodiment, a three-way solenoid valve is used as the flow path switching unit 5. The three-way solenoid valve 5 is also connected to a discharge line 14 for discharging the sample solution from the flow cell 6 and a circulation line 13 communicating with a reflux line 12 for the sample solution S.
【００１１】そして、測定中は吸引ポンプ２によって試
料槽１から吸い上げられている気泡混じりの高温の試料
液Ｓを上流側のサンプリングライン１０ａから循環ライ
ン１３を経由して還流ライン１２に至らしめ試料槽１に
還流できるよう流路切換部５が操作される。すなわち、
循環ライン１３を設けていることにより、測定中に全て
の試料液Ｓを停止させることなく測定中は試料液分析計
本体ケース３と試料槽１との間を常に循環させることが
できる。そのため、この発明の測定はバッチ式であるけ
れども、流路切換部５を操作して試料液Ｓの流れを循環
ライン１３から下流側のサンプリングライン１０ｂへ切
換えるだけで、上流側のサンプリングライン１０ａか
ら、測定分に相当する量の高温の新しい試料液Ｓを、試
料液分析計本体ケース３から離れた場所にある試料槽１
から短時間で下流側のサンプリングライン１０ｂの熱交
換部１１に新たに導入できることになる。そして、次の
測定に供するために下流側のサンプリングライン１０ｂ
の熱交換部１１に予め導入された試料液Ｓを測定中に停
止状態で効率的に冷却できる。例えば、この実施形態で
は、熱交換部１１に予め導入された試料液Ｓは排気ファ
ン４によって停止した状態で空冷される。そして、この
発明の測定はバッチ式である上に、試料液Ｓとして薬液
を使用しており、分光器等を用いた多変量分析を行うた
めに一回の測定に例えば数十秒もの測定時間を要すると
ともに、安定測定のために試料液Ｓを停止させて測定す
る必要がある。つまり、測定時間が長くかかるから、そ
の分冷却時間を長くとることができ、しかも次の測定分
の試料液Ｓを熱交換部１１に停止させるので、試料液Ｓ
の熱交換部１１への導入段階でこれを効率的に空冷でき
る。また、フローセル６から排出された試料液Ｓは排出
ライン１４から還流ライン１２を経由して試料槽１に還
流される。During the measurement, the high temperature sample liquid S containing bubbles sucked up from the sample tank 1 by the suction pump 2 is introduced from the upstream sampling line 10a to the reflux line 12 via the circulation line 13 and the sample. The flow path switching unit 5 is operated so that the flow can be returned to the tank 1. That is,
By providing the circulation line 13, it is possible to constantly circulate between the sample liquid analyzer main body case 3 and the sample tank 1 during the measurement without stopping all the sample liquid S during the measurement. Therefore, although measurements of the present invention is a batch-type, only by operating the passage switching section 5 switches the flow of the sample liquid S from the circulation line 13 downstream of the sampling line 10b, the upstream sampling line 10a From the sample tank 1 of the sample liquid analyzer main body case 3 with a new sample liquid S of high temperature corresponding to the measured amount.
Therefore, it can be newly introduced into the heat exchange section 11 of the sampling line 10b on the downstream side in a short time. Then, the sampling line 10b on the downstream side is provided for the next measurement.
The sample liquid S previously introduced into the heat exchange section 11 can be efficiently cooled in a stopped state during measurement. For example, in this embodiment, the sample liquid S previously introduced into the heat exchange section 11 is air-cooled while being stopped by the exhaust fan 4. Then, on measurement of the present invention is a batch type, uses a chemical as a sample liquid S, the measurement of even one measurement, for example, several tens of seconds in order to perform the multivariate analysis with a spectrometer, etc. It takes time, and it is necessary to stop the sample solution S for measurement for stable measurement. That is, since the measurement time is long, the cooling time can be extended correspondingly, and the sample solution S for the next measurement is stopped in the heat exchange section 11.
This can be efficiently air-cooled at the stage of introduction into the heat exchange section 11. Further, the sample solution S discharged from the flow cell 6 is returned from the discharge line 14 to the sample tank 1 via the reflux line 12.
【００１２】ところで、この発明では、試料槽１からフ
ローセル６へ至るサンプリングライン１０ａ，１０ｂに
おいて、上流側に流路切換部５を設け、下流側に熱交換
部１１を設けて熱交換部１１をフローセル６の直上流に
配置し、還流ライン１２と切換部５とを結ぶ循環ライン
１３を設けているが、同じ構成の循環ラインを有してバ
ッチ式で分析測定を行うにしても、例えば、流路切換部
をフローセル６の直上流に配置し、流路切換部の上流に
熱交換部を設けた構成の冷却装置付分析計も考えられ
る。しかし、この比較例のものでは、離れた場所にある
試料槽からの試料液をできるだけ早く分析計に導くこと
ができるというこの発明と同様の作用を有するけれど
も、熱交換部が流路切換部より上流に位置するから、測
定中は、試料槽からの試料液が熱交換部を通り、更に循
環ラインから還流ラインを経て試料槽へ循環する。つま
り、この比較例のものでは、常に熱エネルギーを持った
高温の試料液の循環中に、熱交換部において冷却手段に
よって冷却する必要がある。よって、この比較例のもの
では、試料液を十分に冷却できなかったり、大型の熱交
換器や大型の冷却手段を必要とするといった欠点があ
る。更に、この比較例のものでは、コスト高になること
以外に、大型の熱交換器等を使用することにより、配管
容量が極めて大にならざるを得ず、応答性が悪くなると
いう欠点もある。その結果、この比較例では、小型で安
価な冷却装置付きの分析計を得ることができない。By the way, in the present invention, in the sampling lines 10a and 10b from the sample tank 1 to the flow cell 6, the flow path switching section 5 is provided on the upstream side, the heat exchange section 11 is provided on the downstream side, and the heat exchange section 11 is provided. A circulation line 13 that connects the reflux line 12 and the switching unit 5 is provided immediately upstream of the flow cell 6; however, even if a circulation line having the same configuration is used to perform analysis measurement in a batch system, for example, An analyzer with a cooling device in which the flow path switching unit is arranged immediately upstream of the flow cell 6 and the heat exchange unit is provided upstream of the flow path switching unit is also conceivable. However, this comparative example has the same function as that of the present invention that the sample solution from the sample tank at a distant place can be introduced to the analyzer as soon as possible, but the heat exchange section is more effective than the flow path switching section. Since it is located upstream, during measurement, the sample solution from the sample tank passes through the heat exchange section and is further circulated from the circulation line to the reflux line to the sample tank. That is, in this comparative example , it is necessary to cool the high temperature sample liquid having thermal energy at all times by the cooling means in the heat exchange section. Therefore, in the comparative example , there are drawbacks that the sample liquid cannot be cooled sufficiently and that a large heat exchanger and a large cooling means are required. Furthermore, in the comparative example , in addition to the high cost, the use of a large heat exchanger or the like causes the piping capacity to be extremely large, which results in poor responsiveness. . As a result, in this comparative example, it is not possible to obtain a compact and inexpensive analyzer with a cooling device.
【００１３】これに対して、この発明では、流路切換部
５とフローセル６間、すなわち、熱交換部１１をフロー
セル６の直上流に配置したので、前記比較例のような余
分な冷却が不要で、冷却する試料液の量を前記比較例の
場合よりも格段に少なくでき、測定分に相当する量の新
しい試料液Ｓのみを、前記比較例のように移動状態では
なく停止状態で効率的に冷却できる。そのため、熱交換
部１１も含めて配管容量を前記比較例の場合よりも極め
て小さくでき、応答性を向上でき、小型で安価な冷却装
置付きの分析計を得ることができる。On the other hand, in the present invention, since the heat exchange section 11 is arranged between the flow path switching section 5 and the flow cell 6, that is, immediately upstream of the flow cell 6, extra cooling as in the comparative example is unnecessary. Thus, the amount of the sample liquid to be cooled can be remarkably reduced as compared with the case of the comparative example, and only the amount of the new sample liquid S corresponding to the measured amount can be efficiently maintained in the stopped state instead of the moving state as in the comparative example. Can be cooled to. Therefore, the pipe capacity including the heat exchange section 11 can be made extremely smaller than that in the case of the comparative example, the response can be improved, and a compact and inexpensive analyzer with a cooling device can be obtained.
【００１４】而して、測定中は流路切換部５がライン１
３側に切換操作されており、気泡混じりの高温の試料液
Ｓはライン１０ａ，１３，１２を循環している。During the measurement, the flow path switching unit 5 is line 1
It is switched to the 3 side, and the high temperature sample liquid S mixed with bubbles circulates through the lines 10a, 13 and 12.
【００１５】測定が終了すると、フローセル６から試料
液Ｓが排出されるとともに、流路切換部５がライン１３
側からライン１０ｂ側に切換操作される。この場合、熱
交換部１１で空冷された試料液Ｓがフローセル６に導入
される一方、ライン１０ａから、測定分に相当する量の
高温の試料液Ｓが下流側のサンプリングライン１０ｂの
熱交換部１１に試料槽１から短時間で新たに導入され
る。When the measurement is completed, the sample solution S is discharged from the flow cell 6 and the flow path switching unit 5 is connected to the line 13.
From the side to the line 10b side. In this case, while the sample solution S air-cooled in the heat exchange section 11 is introduced into the flow cell 6, a high temperature sample solution S in an amount corresponding to the measured amount is introduced from the line 10a into the heat exchange section of the downstream sampling line 10b. 11 is newly introduced from the sample tank 1 in a short time.
【００１６】そして、前記ライン１３側への切換操作か
ら一定時間後に流路切換部５をライン１０ｂ側からライ
ン１３側に切換操作することにより、測定が開始される
とともに、熱交換部１１の試料液Ｓは停止状態で測定時
間に相当する時間をかけて排気ファン４によって効率的
に空冷され、次の測定の準備が行われる。Then, after a lapse of a certain time from the switching operation to the line 13 side, the flow path switching section 5 is switched from the line 10b side to the line 13 side to start the measurement, and the sample of the heat exchange section 11 is started. The liquid S is efficiently air-cooled by the exhaust fan 4 for a time corresponding to the measurement time in the stopped state, and preparation for the next measurement is performed.
【００１７】このように、次の測定分の試料液Ｓのみを
上流側のサンプリングライン１０ａから熱交換部１１に
導入し、停止状態で空冷する。よって、効率的に空冷さ
れた気泡のきわめて少ない試料液Ｓをフローセル６内に
導入することができる。In this way, only the sample liquid S for the next measurement is introduced from the upstream sampling line 10a into the heat exchange section 11 and air-cooled in a stopped state. Therefore, it is possible to efficiently introduce the sample liquid S, which has been cooled by air, with very few bubbles into the flow cell 6.
【００１８】以上のようにこの実施形態では、排気ファ
ン４を試料液Ｓの空冷用として利用することにより大き
な改良を加えることなく、きわめてコスト安に試料液の
冷却装置を設けることができる。従って、比較的大型で
高価な冷却装置または温調装置を設置する必要がなく、
省スペース化を達成することができ、高温の試料液をも
そのまま分析計に導入して信頼性の高い測定値を得るこ
とができ、低温から高温まで広い温度範囲の試料液の測
定が可能となる。また、その冷却のための外部配管が不
要となるめ、液洩れなどのトラブルの発生要因が少なく
なる。そして、試料液の導入初期においてその試料液そ
のものを冷却するので、分析計内部での温度変化による
配管のゆるみが少なくなり、また、液洩れも少なくな
る。As described above, in this embodiment, the cooling device for the sample liquid can be provided at an extremely low cost without making a great improvement by utilizing the exhaust fan 4 for air cooling the sample liquid S. Therefore, it is not necessary to install a relatively large and expensive cooling device or temperature control device,
Space saving can be achieved, high temperature sample liquid can be directly introduced into the analyzer to obtain highly reliable measurement values, and sample liquid in a wide temperature range from low temperature to high temperature can be measured. Become. Further, since external piping for cooling the same is not required, the cause of trouble such as liquid leakage is reduced. Since the sample liquid itself is cooled in the initial stage of the introduction of the sample liquid, the loosening of the pipe due to the temperature change inside the analyzer is reduced and the liquid leakage is also reduced.
【００１９】なお、流路切換部５として、三方電磁弁の
代わりに２個の二方弁を用いてもよい。この場合、上流
側のサンプリングライン１０ａを二方弁間に接続すると
ともに、一方の二方弁に循環ライン１３を接続し、他方
の二方弁に下流側のサンプリングライン１０ｂを接続す
ればよい。As the flow path switching section 5, two two-way valves may be used instead of the three-way solenoid valve. In this case, the upstream sampling line 10a may be connected between the two-way valves, the circulation line 13 may be connected to one two-way valve, and the downstream sampling line 10b may be connected to the other two-way valve.
【００２０】図２は、熱交換部１１とフローセル６間に
脱泡槽２０を設けたこの発明の第２の実施形態を示す。
なお、図２中、図１で用いた符号と同一符号のものは、
同一または相当物である。FIG. 2 shows a second embodiment of the present invention in which a defoaming tank 20 is provided between the heat exchange section 11 and the flow cell 6.
In FIG. 2, the same reference numerals as those used in FIG.
They are the same or equivalent.
【００２１】図２において、１０ｃは、開閉弁５から脱
泡槽２０に至るサンプリングラインで、このサンプリン
グライン１０ｃの一部を螺旋状に巻回させて熱交換部１
１が形成されている。この熱交換部１１は排気ファン４
に近接させてある。また、１０ｄは、脱泡槽２０からフ
ローセル６に至るサンプリングライン、２１は、脱泡槽
２０と排出ライン１４間に設けた空気抜き用のラインで
ある。In FIG. 2, 10c is a sampling line extending from the on-off valve 5 to the defoaming tank 20, and a part of the sampling line 10c is spirally wound to form the heat exchange section 1.
1 is formed. This heat exchange section 11 is an exhaust fan 4
It is close to. Further, 10 d is a sampling line from the defoaming tank 20 to the flow cell 6, and 21 is a line for air removal provided between the defoaming tank 20 and the discharge line 14.
【００２２】この実施形態では、排気ファン４によって
熱交換部１１で空冷して気泡発生要因を除去した試料液
Ｓを、更に、熱交換部１１の下流の脱泡槽２０を通過さ
せるので、フローセル６内には気泡のより少ない試料液
を導入することができる。In this embodiment, the sample liquid S, which has been air-cooled by the exhaust fan 4 in the heat exchange section 11 to remove the cause of bubble generation, is further passed through the defoaming tank 20 downstream of the heat exchange section 11. A sample liquid with less bubbles can be introduced into 6.
【００２３】なお、上記第１の実施形態では、例えば薬
液として、硫酸−過酸化水素水溶液のような比較的気泡
の発生し難い試料液Ｓの場合に好適である一方、上記第
２の実施形態では、例えば薬液として、アンモニア−過
酸化水素水溶液のような比較的気泡が発生し易い試料液
Ｓの場合に好適である。[0023] In the above first embodiment, for example as a chemical, sulfate - one is suitable for relatively bubbles hardly occurs sample liquid S such as aqueous hydrogen peroxide solution, the second embodiment In the form, for example, the chemical solution is suitable for the sample solution S such as an aqueous solution of ammonia-hydrogen peroxide in which bubbles are relatively likely to be generated.
【００２４】また上記各実施形態で用いた熱交換部１１
以外に、図３に示すように、螺旋状のチューブを継手２
２１によって並列に組み合わせて熱交換部２２を構成し
たり、図４に示すように、３本の細いチューブを継手２
２１で並列に組み合わせて熱交換部２３を構成してもよ
い。また、図示は省略するがチューブに放熱フィンを設
けたものでもよい。なお、チューブの材質としてはＰＦ
Ａ（フッ素樹脂）等が好適である。The heat exchange section 11 used in each of the above embodiments
Other than that, as shown in FIG.
21 to form a heat exchange part 22 by combining them in parallel, or as shown in FIG.
The heat exchange section 23 may be configured by combining 21 in parallel. Although not shown, the tube may be provided with a radiation fin. The tube material is PF
A (fluorine resin) and the like are preferable.
【００２５】上記各実施形態では、熱交換部を予め冷却
する冷却手段として、空冷方式のものを示したが、熱交
換部を水冷し、発生する気化熱を試料液分析計本体ケー
ス内に常設の排気ファンを利用して、ケース内から排出
するように構成してもよい。また、上記各実施形態で
は、測定中に次の測定分の試料液を熱交換部を予め冷却
する冷却手段として、試料液分析計本体ケース内に常設
の排気ファンを利用したものを示したが、専用の冷却フ
ァンを設けたり、あるいは、例えば、ペルチェ素子を使
用した電子冷却器で一定温度に温調してもよい。また上
記各実施形態では、熱交換部を分析計本体ケースの内側
に配置したものを示したが、外側に配置してもよい。In each of the above-mentioned embodiments, the cooling means for cooling the heat exchanging portion in advance is shown as an air cooling type. However, the heat exchanging portion is water-cooled and the generated heat of vaporization is permanently installed in the sample liquid analyzer main body case. The exhaust fan may be used to discharge from the case. Further, in each of the above-described embodiments, the one in which a permanent exhaust fan is used in the sample liquid analyzer main body case has been shown as a cooling means for previously cooling the heat exchange part with the sample liquid for the next measurement during measurement. Alternatively, a dedicated cooling fan may be provided, or the temperature may be adjusted to a constant temperature with an electronic cooler using a Peltier element, for example. Further, in each of the above-described embodiments, the heat exchange part is arranged inside the analyzer main body case, but it may be arranged outside.
【００２６】[0026]
【発明の効果】以上説明したように、この発明では、フ
ローセルに試料液を導入しバッチ式で測定を行う分析計
であって、試料液供給源からフローセルへ至るサンプリ
ングラインの上流側には流路切換部を設けるとともに、
下流側には熱交換部を設け、フローセルから試料液供給
源へ至る還流ラインと前記流路切換部とを結ぶ循環ライ
ンを設け、測定中は、次の測定分の試料液を前記熱交換
部において停止させた状態で冷却する一方、試料液供給
源からの試料液が前記流路切換部、循環ライン、還流ラ
インを経て試料液供給源へ循環するように構成してい
る。As described in the foregoing, in the present invention, analyzer performing measure batchwise by introducing the sample solution to the flow cell
A is, sampled, from the sample solution supply source to the flow cell
A flow path switching unit is provided on the upstream side of the
A heat exchange unit is installed on the downstream side, and the sample solution is supplied from the flow cell.
A circulation line connecting the return line to the source and the flow path switching unit.
The emissions provided, during measurement, while cooling in a state where the next sample solution measured content was stopped in the heat exchange unit, the sample solution supply
The sample liquid from the source is the flow path switching unit, circulation line, and reflux line.
It is configured so as to circulate to the sample liquid supply source via the inlet .
【００２７】すなわち、フローセルに間欠的にしか試料
液が導入されないバッチ式の測定を 対象にしているた
め、測定中に、次の測定分の試料液を流路切換部とフロ
ーセル間の熱交換部において必要量のみ停止状態で冷却
できることが可能である。よって、試料液の熱交換部へ
の導入段階でこれを効率的に空冷でき、気泡のきわめて
少ない試料液をフローセル内に導入することができる。
また、余分な冷却を行うことなく測定分に相当する量の
新しい試料液のみを、停止状態で効率的に冷却できるの
で、熱交換部も含めて配管容量を極めて小さくでき、応
答性を向上できる。 That is, the sample is only intermittently placed in the flow cell.
It is intended for batch-type measurement in which liquid is not introduced .
Therefore, during measurement, the sample liquid for the next
-Only the required amount of heat is cooled in the heat exchange section between cells
You can do it. Therefore, to the heat exchange part of the sample solution
This can be efficiently air-cooled during the introduction stage of
A small amount of sample solution can be introduced into the flow cell.
In addition, the amount equivalent to the measured amount can be measured without extra cooling.
Only new sample liquid can be cooled efficiently in the stopped state
The piping capacity, including the heat exchange section, can be made extremely small.
The answer can be improved .
【００２８】更に、小型で安価に冷却機能を備えること
ができ、また、高価な冷却装置や温調装置を設ける必要
がなく、高温の試料液をも直接分析計に導入して、信頼
性の高い測定値を得ることができる。また、試料液を冷
却するので、分析計内部での温度変化による配管のゆる
みや液洩れ等のトラブルの発生も少なくなる。 Further, the cooling function should be small and inexpensive.
In addition, it is necessary to install expensive cooling device and temperature control device.
There is no need to rely on the direct introduction of high-temperature sample liquid into the analyzer.
It is possible to obtain highly accurate measurement values. Also, cool the sample solution
The temperature inside the analyzer, the piping
The occurrence of troubles such as stains and liquid leakage is reduced .
【００２９】そして、熱交換部と前記フローセルとの間
に脱泡槽を設ける場合は、フローセル内に気泡のより少
ない試料液を導入することができる。Between the heat exchange section and the flow cell
If a defoaming tank is installed in the flow cell,
No sample liquid can be introduced .
【図１】この発明の第１の実施形態を示す全体構成説明
図である。FIG. 1 is an explanatory diagram of an overall configuration showing a first embodiment of the present invention.
【図２】この発明の第２の実施形態を示す全体構成説明
図である。FIG. 2 is an overall configuration explanatory diagram showing a second embodiment of the present invention.
【図３】この発明で用いる熱交換部の変形例を示す構成
説明図である。FIG. 3 is a structural explanatory view showing a modified example of the heat exchange section used in the present invention.
【図４】この発明で用いる熱交換部の他の変形例を示す
構成説明図である。FIG. 4 is a structural explanatory view showing another modification of the heat exchange section used in the present invention.
１…試料槽、３…試料液分析計本体ケース、４…排気フ
ァン、５…流路切換部、６…フローセル、１１…熱交換
部、２０…脱泡槽、Ｓ…試料液。 DESCRIPTION OF SYMBOLS 1 ... Sample tank, 3 ... Sample liquid analyzer main body case, 4 ... Exhaust fan, 5 ... Flow path switching part, 6 ... Flow cell, 11 ... Heat exchange part, 20 ... Defoaming tank, S ... Sample liquid.
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) G01N 21/00 - 21/61 ＷＰＩ／Ｌ ＥＰＡＴ ＰＡＴＯＬＩＳ─────────────────────────────────────────────────── --Continued from the front page (58) Fields surveyed (Int.Cl. 7 , DB name) G01N 21/00-21/61 WPI / L EPAT PATOLIS
Claims (2)
測定を行う分析計であって、試料液供給源からフローセ
ルへ至るサンプリングラインの上流側には流路切換部を
設けるとともに、下流側には熱交換部を設け、フローセ
ルから試料液供給源へ至る還流ラインと前記流路切換部
とを結ぶ循環ラインを設け、測定中は、次の測定分の試
料液を前記熱交換部において停止させた状態で冷却する
一方、試料液供給源からの試料液が前記流路切換部、循
環ライン、還流ラインを経て試料液供給源へ循環するよ
うに構成してあることを特徴とする冷却装置付分析計。1. A sample solution is introduced into a flow cell in a batch system .
Measuring a spectrometer for performing constant, the sample solution supply source <br/> the passage switching section on the upstream side of the sampling line leading to flow cell <br/> Le from provided Rutotomoni, heat exchanger on the downstream side Is installed,
Flow line from the sample to the sample liquid supply source and the flow path switching unit
Preparative circulation line is provided connecting, during measurement, it is cooled in a state in which the next sample solution measured content was stopped in the heat exchange section
On the other hand, the sample liquid from the sample liquid supply source is circulated in the flow path switching unit.
An analyzer with a cooling device, which is configured to circulate to a sample liquid supply source through a ring line and a reflux line .
脱泡槽を設けてある請求項１に記載の冷却装置付分析
計。2. Between the heat exchange section and the flow cell
The analyzer with a cooling device according to claim 1, wherein a defoaming tank is provided .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18579497A JP3453282B2 (en) | 1997-06-25 | 1997-06-25 | Analyzer with cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18579497A JP3453282B2 (en) | 1997-06-25 | 1997-06-25 | Analyzer with cooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1114539A JPH1114539A (en) | 1999-01-22 |
| JP3453282B2 true JP3453282B2 (en) | 2003-10-06 |
Family
ID=16177014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18579497A Expired - Fee Related JP3453282B2 (en) | 1997-06-25 | 1997-06-25 | Analyzer with cooling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3453282B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006208344A (en) * | 2004-12-28 | 2006-08-10 | Bl Tec Kk | Method and device for automatic absorptiometric quantitative analysis, and cell used therefor |
| JP2006234601A (en) * | 2005-02-25 | 2006-09-07 | Bl Tec Kk | Automatic quantitative analyzer of absorption photometry |
| JP2008241534A (en) * | 2007-03-28 | 2008-10-09 | Kurita Water Ind Ltd | Air-cooling cooler for high-temperature water and analyzer for high-temperature water using the same |
| JP6981443B2 (en) * | 2019-03-29 | 2021-12-15 | Ｊｆｅスチール株式会社 | Online measurement method of liquid component concentration |
| CN110108533B (en) * | 2019-05-24 | 2023-10-24 | 常州派斯杰医疗设备有限公司 | Tissue dehydrator |
-
1997
- 1997-06-25 JP JP18579497A patent/JP3453282B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1114539A (en) | 1999-01-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6980284B2 (en) | Condensation particle counter | |
| KR19980033219A (en) | Temperature control device of the sample mount | |
| JP3453282B2 (en) | Analyzer with cooling device | |
| KR20180049120A (en) | Fluid Leakage Detection for Millisecond Annealing Systems | |
| EP0509844B1 (en) | Apparatus for cooling electronic equipment | |
| EP3985399A1 (en) | Automatic analysis device | |
| JP2009525847A (en) | Method and apparatus for controlling reaction temperature in a biochemical instrument | |
| US20030030430A1 (en) | Methods and apparatus for testing a semiconductor structure using improved temperature desoak techniques | |
| JPH10116867A (en) | Method for testing semiconductor wafer and temperature controller for testing equipment | |
| JP3711180B2 (en) | Analyzer with cooling device | |
| US6338474B1 (en) | Air feeder provided with by-pass bypassing cooling section, substrate processing apparatus including the same, and air supply method | |
| JP3730079B2 (en) | Substrate processing equipment | |
| JP3206240U (en) | Analysis equipment | |
| CN114689574A (en) | Device and method for online detection of full-range iron content in water | |
| JP2014235035A (en) | Liquid chromatograph analyzer, and analysis system and analytical method using the same | |
| JP2000298096A (en) | Water analyser | |
| CN207862433U (en) | A kind of melanism equipment | |
| JPH0527674U (en) | Reaction tank circulating water flow controller | |
| US6874576B2 (en) | Device for cooling electric or electronic devices | |
| CN115237176B (en) | Ultraviolet nonlinear crystal temperature control device and temperature control method thereof | |
| KR102563930B1 (en) | Gas measuring device with a function of automatically removing the test gas | |
| JPH01201162A (en) | Heat radiation system for automatic chemical analyzing instrument | |
| CN207862432U (en) | A kind of gas system processed and melanism equipment | |
| JP3237312B2 (en) | Iron measurement device | |
| US20220199432A1 (en) | Apparatus and method for supplying processing liquid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090718 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120718 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120718 Year of fee payment: 9 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120718 Year of fee payment: 9 |
|
| LAPS | Cancellation because of no payment of annual fees |