JP2597075B2 - Liquid analyzer - Google Patents
Liquid analyzerInfo
- Publication number
- JP2597075B2 JP2597075B2 JP23931193A JP23931193A JP2597075B2 JP 2597075 B2 JP2597075 B2 JP 2597075B2 JP 23931193 A JP23931193 A JP 23931193A JP 23931193 A JP23931193 A JP 23931193A JP 2597075 B2 JP2597075 B2 JP 2597075B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- liquid
- tube
- pressure control
- analyzer
- 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.)
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- Sampling And Sample Adjustment (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、近赤外線分析装置を用
いて醤油、酒、ジュース等の液体の成分を分析する装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for analyzing liquid components such as soy sauce, sake and juice using a near-infrared analyzer.
【０００２】[0002]
【従来の技術】近赤外線分析装置は液体の成分を多項目
にわたり、迅速に、簡便に分析できることから、最近広
く利用されるようになってきた。そして、能率を高める
べく、ポンプにて連続的・自動的に近赤外線分析装置へ
試料を供給する自動分析方法が普及しつつある。2. Description of the Related Art Near-infrared spectrometers have recently been widely used because they can quickly and easily analyze liquid components over many items. Then, in order to increase the efficiency, an automatic analysis method of continuously and automatically supplying a sample to a near-infrared analyzer by a pump is becoming widespread.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、従来の
測定技術には、ポンプの脈動が試料の液圧を変化させ、
また試料セット時に混入する空気が作用し、近赤外線分
析装置内の分析セルの分析精度を悪化させるという不具
合がある。However, in the conventional measuring technique, the pulsation of the pump changes the liquid pressure of the sample,
In addition, there is a problem that air mixed in at the time of setting the sample acts to deteriorate the analysis accuracy of the analysis cell in the near-infrared analyzer.
【０００４】[0004]
【課題を解決するための手段】上記要望に応えるべく本
発明は、液体の成分を分析する近赤外線分析装置と、こ
の近赤外線分析装置へ液体を供給する試料供給装置と、
これら近赤外線分析装置と試料供給装置とを直接連結す
るチューブに設けられた圧力制御装置とからなる液体の
分析装置であって、前記圧力制御装置を、チューブ内の
空気を放出する空気抜き管と、チューブ内の流体の圧力
を制御する圧力制御弁と、チューブ内の圧力を測る圧力
センサとで構成し、これら空気抜き管、圧力制御弁及び
圧力センサを液体の流れ方向に順に配置し、充分に空気
の抜かれた液体を圧力センサの圧力が一定になるように
圧力制御弁にて制御する圧力コントローラを有したこと
を特徴とする液体の分析装置である。 SUMMARY OF THE INVENTION In order to meet the above demand, the present invention provides a near-infrared analyzer for analyzing components of a liquid.
A sample supply device for supplying a liquid to the near-infrared analyzer of
Direct connection between these near-infrared analyzers and sample supply devices
Of the liquid consisting of
An analyzer, wherein the pressure controller is provided in a tube.
Air bleed pipe to release air and pressure of fluid in tube
Pressure control valve to control the pressure inside the tube
The air vent pipe, pressure control valve and
Arrange the pressure sensors in the liquid flow direction in order, and
The drained liquid so that the pressure of the pressure sensor becomes constant
Having a pressure controller controlled by a pressure control valve
A liquid analyzer.
【０００５】又は、液体の成分を分析する近赤外線分析
装置と、この近赤外線分析装置へ液体を供給する試料供
給装置と、これら近赤外線分析装置と試料供給装置とを
直接連結するチューブに設けられた圧力制御装置とから
なる液体の分析装置であって、前記試料供給装置はポン
プとされ、また前記圧力制御装置は前記チューブ内の空
気を放出する空気抜き管とチューブ内の圧力を測る圧力
センサとからなり、これらポンプ、空気抜き管および圧
力センサが液体の流れ方向に順に配置され、ポンプで加
圧した流体から充分に空気を抜き、その液体を圧力セン
サの圧力が一定になるようにポンプの回転数制御にて制
御する圧力コントローラを有することを特徴とした液体
の分析装置である。 [0005] Alternatively, near-infrared analysis for analyzing liquid components
And a sample supply for supplying liquid to the near-infrared analyzer.
Supply device, these near-infrared analyzers and the sample supply device.
With the pressure control device installed in the tube that directly connects
A sample analyzer, wherein the sample supply device is a liquid analyzer.
And the pressure control device is evacuated from the tube.
Pressure gauge to measure the pressure inside the air release pipe and tube
Sensors, pumps, vent pipes and pressure
Force sensors are arranged in order in the liquid flow direction and pump
Vent air sufficiently from the pressurized fluid and allow the liquid to
Control by controlling the pump speed so that the
Liquid having a pressure controller for controlling
Analyzer.
【０００６】[0006]
【作用】充分に空気の抜かれた液体を圧力センサの圧力
信号が一定になるように圧力制御弁にて制御する。The liquid from which air has been sufficiently removed is controlled by the pressure control valve so that the pressure signal of the pressure sensor becomes constant.
【０００７】または、ポンプで加圧した流体から充分に
空気を抜き、その液体を圧力センサの圧力信号が一定に
なるようにポンプの回転数制御にて制御する。そして試
料供給装置で供給する試料供給装置の圧力を圧力制御装
置にて一定にしつつ、近赤外線分析装置にて成分分析を
実施する。Alternatively, air is sufficiently extracted from the fluid pressurized by the pump, and the liquid is controlled by controlling the rotation speed of the pump so that the pressure signal of the pressure sensor becomes constant. Then, the component analysis is performed by the near-infrared analyzer while the pressure of the sample supply device supplied by the sample supply device is kept constant by the pressure control device.
【０００８】[0008]
【実施例】以下に本発明の実施例を添付図面及び表に基
づいて説明する。図１は本発明に係る液体の分析装置構
成図であり、液体の分析装置１は、大きく、液体の成分
を分析する近赤外線分析装置２と、この近赤外線分析装
置２へ液体を供給・停止する試料供給装置３と、液体の
圧力を一定に制御する圧力制御装置４とからなる。Embodiments of the present invention will be described below with reference to the accompanying drawings and tables. FIG. 1 is a configuration diagram of a liquid analyzer according to the present invention. The liquid analyzer 1 is a large, near-infrared analyzer 2 for analyzing the components of the liquid, and supplies / stops the liquid to the near-infrared analyzer 2. And a pressure control device 4 for controlling the pressure of the liquid to be constant.
【０００９】更に、液体の分析装置１には、前記試料供
給装置３に接続して試料液体を提供する自動サンプラ５
と、１サイクル毎に近赤外線分析装置２と試料供給装置
３とを清掃する洗浄装置６とが、また試料供給装置３の
途中には試料液体を一定の温度に保つ恒温装置７が夫々
付加されている。試料供給装置３は、チューブポンプ３
ａと、このチューブポンプ３ａから放射状に延設される
チューブ３ｂ，３ｃ，３ｄ，３ｅとからなる。Further, the liquid analyzer 1 has an automatic sampler 5 connected to the sample supply device 3 for providing a sample liquid.
And a cleaning device 6 for cleaning the near-infrared analyzer 2 and the sample supply device 3 for each cycle, and a constant temperature device 7 for keeping the sample liquid at a constant temperature in the middle of the sample supply device 3. ing. The sample supply device 3 includes a tube pump 3
a and tubes 3b, 3c, 3d, 3e extending radially from the tube pump 3a.
【００１０】図２は本発明に係るチューブポンプの構造
説明図であり、チューブポンプ３ａは、回転ローラ３ｆ
…にて可撓性チューブ３ｇ，３ｈを扱（しご）くが如く
して流体を一方向へ移動させる周知のポンプである。FIG. 2 is an explanatory view of the structure of the tube pump according to the present invention. The tube pump 3a includes a rotary roller 3f.
Are well-known pumps that move the fluid in one direction as a result of handling the flexible tubes 3g and 3h with a ladder.
【００１１】図１に戻ってチューブ３ｃの途中には、コ
イル状に形成した熱交換部３ｉが介設され、熱交換部３
ｉは恒温装置７の恒温槽７ａに収容されている。Returning to FIG. 1, a coil-shaped heat exchange section 3i is interposed in the middle of the tube 3c.
i is housed in a thermostat 7 a of the thermostat 7.
【００１２】図３は本発明の圧力制御装置の原理図であ
り、圧力制御装置４はチューブ３ｃに流れ方向に沿っ
て、空気抜き管４ｄと、圧力制御弁４ｅと、圧力センサ
４ｆとを介設してなる。FIG. 3 is a principle view of the pressure control device of the present invention. The pressure control device 4 includes an air vent pipe 4d, a pressure control valve 4e, and a pressure sensor 4f along the flow direction of the tube 3c. Do it.
【００１３】再度図１に戻って自動サンプラ５は、試料
液体を収容する試験管状のカラム５ａ，５ｂを起立し移
動させるターンテーブル５ｃと、このターンテーブル５
ｃを間欠回動させるサンプラ制御函５ｄとからなり、複
数のカラム５ａ，５ｂ…を分析スケジュールに合せて前
記チューブ３ｂ端に臨ませる。Returning to FIG. 1, the automatic sampler 5 comprises a turntable 5c for raising and moving test tubular columns 5a and 5b for accommodating a sample liquid, and a turntable 5c.
and a sampler control box 5d for intermittently rotating c. A plurality of columns 5a, 5b,... face the end of the tube 3b in accordance with the analysis schedule.
【００１４】洗浄装置６は、洗浄液タンク６ａと、この
タンク６ａ中に差し込まれるチューブ６ｂと、このチュ
ーブ６ｂの途中に介設され、洗浄液を圧送するチューブ
ポンプ６ｃとからなる。チューブポンプ６ｃは前記した
チューブポンプ３ａと同構造である。チューブ６ｂの先
端６ｄはカラム５ａ…の近傍に開口し、チューブ３ｂの
基端３ｌと接続可能にある。即ち、チューブ３ｂの基端
３ｌは、可撓性に豊み矢印Ａの如く揺動自在であって、
例えば揺動シリンダユニットの如き切換機構３ｍによっ
てカラム５ａ開口とチューブ６ｂの先端６ｄとの一方へ
自由に連結し得る。図中８はコントローラであり、この
コントローラ８は、近赤外線分析装置２、試料供給装置
３と、これらに連動する切換機構３ｍ、サンプラ制御函
５ｄ、チューブポンプ６ｃを包括して制御する。The cleaning device 6 comprises a cleaning liquid tank 6a, a tube 6b inserted into the tank 6a, and a tube pump 6c interposed in the middle of the tube 6b for pumping the cleaning liquid. The tube pump 6c has the same structure as the tube pump 3a. The distal end 6d of the tube 6b is opened near the columns 5a and can be connected to the proximal end 31 of the tube 3b. That is, the base end 31 of the tube 3b is flexible and can swing freely as indicated by an arrow A,
For example, it can be freely connected to one of the opening of the column 5a and the tip 6d of the tube 6b by a switching mechanism 3m such as a swing cylinder unit. In the figure, reference numeral 8 denotes a controller, which controls the near-infrared analyzer 2, the sample supply device 3, the switching mechanism 3m interlocked with them, the sampler control box 5d, and the tube pump 6c.
【００１５】以上の構成からなる液体の分析装置１の作
用を以下に説明する。図１にて先ず、切換機構３ｍにて
チューブ３ｂの基端３ｌを洗浄装置６の先端６ｄに連結
し、チューブポンプ３ａ，６ｃを作動し、洗浄液タンク
６ａ内の洗浄液をチューブ６ｂを介してチューブ３ｂ→
チューブポンプ３ａ→チューブ３ｃ→熱交換部３ｉ→圧
力制御装置４→チューブ３ｃ→近赤外線分析装置２→チ
ューブ３ｄ→チューブポンプ３ａ→チューブ３ｅの順路
にて流通せしめこれらを十分に洗浄する。ポンプ３ａ，
６ｃを停止し、切換機構３ｍにてチューブ３ｂの基端３
ｌをカラム５ａにつなぎ替える。ポンプ３ａを再動させ
ることにより、カラム５ａ内の試料液体はチューブ３ｂ
→ポンプ３ａ→チューブ３ｃを介して近赤外線分析装置
２に送り込まれる。チューブ３ｃの途中において、試料
液体は、先ず熱交換部３ｉにて所定の温度に変換され一
定温に保たれる。The operation of the liquid analyzer 1 having the above configuration will be described below. In FIG. 1, first, the base end 3l of the tube 3b is connected to the distal end 6d of the cleaning device 6 by the switching mechanism 3m, and the tube pumps 3a and 6c are operated. 3b →
The tube pump 3a, the tube 3c, the heat exchange unit 3i, the pressure control device 4, the tube 3c, the near-infrared ray analyzer 2, the tube 3d, the tube pump 3a, and the tube 3e are circulated in order, and these are sufficiently washed. Pump 3a,
6c is stopped, and the switching mechanism 3m stops the base 3 of the tube 3b.
Replace l with column 5a. By moving the pump 3a again, the sample liquid in the column 5a
→ pump 3a → is sent to the near-infrared analyzer 2 via the tube 3c. In the middle of the tube 3c, the sample liquid is first converted to a predetermined temperature in the heat exchange unit 3i and kept at a constant temperature.
【００１６】次いで、試料液体は、図３の圧力制御装置
４を通る。圧力制御装置４では、空気抜き管４ｄはチュ
ーブ３ｃから垂直に十分高く起立し、液体中の空気のみ
を上方へ放出する。Next, the sample liquid passes through the pressure control device 4 shown in FIG. In the pressure control device 4, the air vent pipe 4d rises sufficiently vertically vertically from the tube 3c to discharge only the air in the liquid upward.
【００１７】圧力制御弁４ｅは、圧力センサ４ｆの圧力
信号を圧力コントローラ４ｇに入力し、圧力コントロー
ラ４ｇにて目標圧力値と比較し、圧力コントローラ４ｇ
は実圧力値をこの目標圧力値に合せるべく圧力制御弁４
ｅを開閉する。即ち、上記した圧力制御装置４は極めて
簡単な構造であって、均圧と空気抜き作用を為す。この
状態で近赤外線分析装置２は試料液体分析を実施する。The pressure control valve 4e inputs the pressure signal of the pressure sensor 4f to the pressure controller 4g, compares it with the target pressure value by the pressure controller 4g,
Is a pressure control valve 4 for adjusting the actual pressure value to the target pressure value.
Open and close e. That is, the above-described pressure control device 4 has a very simple structure, and performs an equalizing pressure and an air releasing function. In this state, the near-infrared analyzer 2 performs sample liquid analysis.
【００１８】分析後、図１の切換装置３ｍにてチューブ
３ｂの基端３ｌをカラム５ａから外し、チューブ６ｂの
先端６ｄへつなぎかえる。チューブポンプ３ａ，６ｃを
起動し、チューブポンプ３ａ、チューブ３ｂ，３ｃ、近
赤外線分析装置２を洗浄する。サンプラ制御函５ｄにて
ターンテーブル５ｃを１ピッチ回転させる。チューブ３
ｂの基端３ｌをカラム５ｂに接続して、カラム５ａと同
様の順にてカラム５ｂ内の試料液体の分析を実施する。
以上に述べた作動の全ては、コントローラ８の制御指令
によって自動で為される。After the analysis, the proximal end 3l of the tube 3b is detached from the column 5a by the switching device 3m in FIG. 1, and is connected to the distal end 6d of the tube 6b. The tube pumps 3a and 6c are activated, and the tube pump 3a, the tubes 3b and 3c, and the near-infrared analyzer 2 are washed. The turntable 5c is rotated by one pitch by the sampler control box 5d. Tube 3
The base end 3l of b is connected to the column 5b, and the sample liquid in the column 5b is analyzed in the same order as in the column 5a.
All the operations described above are automatically performed by a control command of the controller 8.
【００１９】次に上記した液体の分析装置１による分析
方法が如何に有効であるか、実験データを基に説明す
る。実験は試料としては濃口醤油を用いた。本発明法に
ついては、圧力制御装置４の制御圧力を固定し、チュー
ブ３ｃの圧力を１５ｍｍＡｑに維持し、繰り返し分析し
てそれらの平均、標準偏差を算出した。一方、対照法に
ついては、圧力制御装置４の制御圧力を種々変化させ、
チューブ３ｃの圧力を１３，１５，１８，２０，２２ｍ
ｍＡｑに設定し、それらの夫々について繰り返し分析し
てそれらの平均、標準偏差を算出した。実験結果を表１
に示す。Next, how effective the above-described liquid analysis method using the analyzer 1 will be described based on experimental data. In the experiment, concentrated soy sauce was used as a sample. In the method of the present invention, the control pressure of the pressure control device 4 was fixed, the pressure of the tube 3c was maintained at 15 mmAq, and repeated analysis was performed to calculate their average and standard deviation. On the other hand, in the control method, the control pressure of the pressure control device 4 is variously changed,
The pressure of the tube 3c is 13, 15, 18, 20, 22m
mAq was set, and each of them was repeatedly analyzed to calculate their average and standard deviation. Table 1 shows the experimental results
Shown in
【００２０】[0020]
【表１】 [Table 1]
【００２１】なお近赤外線分析装置２による各成分の定
量は、（財）日本醤油研究所編「しょうゆ分析法」に記
載の常用法と対比して作成した検量線に基づいて行なっ
た。すなわち常用法としては窒素にはケルダール法を、
アルコールにはガスクロマトグラフィーを、乳酸および
グルタミン酸には酵素法を、食塩にはモール法をそれぞ
れ用いた。そして生醤油および火入れ済の醤油につい
て、２４５点を２回ずつ近赤外線分析装置により測定
し、各成分について数１に示す重回帰式および重回帰係
数を得た。表１の分析値は該重回帰式を基に算出したも
のである。The quantification of each component by the near-infrared spectrometer 2 was performed based on a calibration curve prepared in comparison with the conventional method described in "Soy sauce analysis method" edited by Japan Shoyu Laboratory. In other words, the Kjeldahl method is commonly used for nitrogen,
Gas chromatography was used for alcohol, enzymatic method for lactic acid and glutamic acid, and Mohr method for salt. Then, the raw soy sauce and the burned soy sauce were measured at 245 points twice by a near-infrared spectrometer to obtain a multiple regression equation and a multiple regression coefficient shown in Formula 1 for each component. The analysis values in Table 1 were calculated based on the multiple regression equation.
【００２２】[0022]
【数１】 (Equation 1)
【００２３】また、表２は本発明法によって、酒類およ
び果汁のアルコールおよび還元糖についてそれぞれ１０
回ずつ繰り返し分析結果を示す。Table 2 shows that alcohols and reducing sugars in alcoholic beverages and fruit juices were reduced by 10% each according to the method of the present invention.
The results of the analysis are shown repeatedly.
【００２４】[0024]
【表２】 [Table 2]
【００２５】前記表１より明らかな如く、本発明装置に
よる方が分析値にバラツキがなく安定した結果が得られ
ることがわかる。また、本発明は、醤油、ワイン、清
酒、ブドウ果汁の他、ウィスキー、ビールなどの酒類、
ミカン、リンゴ等ジュース類、さらに牛乳などの成分分
析に有効である。As is evident from Table 1, the apparatus of the present invention can provide a stable result without variation in analytical values. Further, the present invention, in addition to soy sauce, wine, sake, grape juice, whiskey, alcoholic beverages such as beer,
It is effective for analyzing components such as oranges, apples and other juices, and milk.
【００２６】尚、本発明の圧力制御装置４は、要は近赤
外線分析装置２内の試料液体の圧力を分析タイミングに
おいて一定に維持するものであればよく、例えば図４に
示す装置を採用してもよい。図４は本発明の圧力制御装
置の別実施例の原理図であり、圧力制御装置４は、図３
の圧力制御弁４ｅを廃し、図１のチューブポンプ３ａを
チューブポンプ３ｎとチューブポンプ３ｐに置き換えた
ものである。The pressure control device 4 of the present invention may be any device that maintains the pressure of the sample liquid in the near-infrared spectrometer 2 constant at the analysis timing. For example, the device shown in FIG. You may. FIG. 4 is a principle diagram of another embodiment of the pressure control device of the present invention.
Is eliminated, and the tube pump 3a in FIG. 1 is replaced by a tube pump 3n and a tube pump 3p.
【００２７】即ち、試料液体の空気は空気抜き管４ｄで
抜かれ、圧力センサ４ｆでモニタされ、圧力コントロー
ラ４ｇの作用にてチューブポンプ３ｎの回転数を高めて
昇圧する如くする。試料供給装置３はチューブポンプに
限らずギヤーポンプ、ベーンポンプ、タービンポンプな
ど使用可能である。そして、複数の圧力制御装置４…を
チューブ３ｃ、チューブ３ｄに介設してもよい。That is, the air of the sample liquid is evacuated by the air vent pipe 4d, monitored by the pressure sensor 4f, and increased by increasing the rotation speed of the tube pump 3n by the action of the pressure controller 4g. The sample supply device 3 is not limited to a tube pump, and may be a gear pump, a vane pump, a turbine pump, or the like. A plurality of pressure control devices 4 may be provided on the tubes 3c and 3d.
【００２８】また、圧力変動を除く方法として、分析タ
イミング前にチューブポンプ３ａを停止させるなどして
近赤外線分析装置２内の液体を静止させ、もって圧力を
静定させるものも有効である。As a method of removing the pressure fluctuation, a method of stopping the liquid in the near-infrared analyzer 2 by stopping the tube pump 3a before the analysis timing, and thereby stabilizing the pressure is effective.
【００２９】[0029]
【発明の効果】以上に述べた如く本発明は、近赤外線分
析装置と、試料供給装置と、供給される試料液体の圧力
を一定にする圧力制御とから分析装置を構成し、更に圧
力制御装置を、チューブ内の空気を放出する空気抜き管
と、チューブ内の流体の圧力を制御する圧力制御弁と、
チューブ内の圧力を測る圧力センサとから構成し、これ
ら空気抜き管、圧力制御弁及び圧力センサを液体の流れ
方向に順に配置して、液体から充分に空気を抜き、且つ
液体の圧力を一定にすることで分析セルの分析精度を著
しく向上させることに成功した。As described above, the present invention comprises an analyzer comprising a near-infrared analyzer, a sample supply device, and pressure control for keeping the pressure of the supplied sample liquid constant. An air release pipe for releasing air in the tube, a pressure control valve for controlling the pressure of the fluid in the tube,
And a pressure sensor for measuring the pressure in the tube. The air vent tube, the pressure control valve, and the pressure sensor are arranged in order in the flow direction of the liquid to sufficiently release air from the liquid and keep the pressure of the liquid constant. As a result, the analysis accuracy of the analysis cell was significantly improved.
【００３０】又は、試料供給装置をポンプとし、圧力制
御装置をチューブ内の空気を放出する空気抜き管とチュ
ーブ内の圧力を測る圧力センサとから構成し、これらポ
ンプ、空気抜き管び圧力センサを液体の流れ方向に順に
配置して、ポンプで加圧した流体から充分に空気を抜
き、その液体を圧力センサの圧力信号が一定になるよう
にポンプの回転数制御にて制御したので、分析セルの分
析精度を著しく向上させることに成功した。Alternatively, the sample supply device is a pump, and the pressure control device is composed of an air vent tube for discharging air in the tube and a pressure sensor for measuring the pressure in the tube. Air was sufficiently extracted from the fluid pressurized by the pump, and the liquid was controlled by controlling the pump rotation speed so that the pressure signal from the pressure sensor became constant. The accuracy has been significantly improved.
【図１】本発明に係る流体の分析装置の構成図FIG. 1 is a configuration diagram of a fluid analysis device according to the present invention.
【図２】本発明に係るチューブポンプの構造説明図FIG. 2 is a structural explanatory view of a tube pump according to the present invention.
【図３】本発明に係る圧力制御装置の原理図FIG. 3 is a principle diagram of a pressure control device according to the present invention.
【図４】本発明の圧力制御装置の別実施例の原理図FIG. 4 is a principle diagram of another embodiment of the pressure control device of the present invention.
１…液体の分析装置、２…近赤外線分析装置、３…試料
供給装置（ポンプ）、４…圧力制御装置、４ｄ…空気抜
き管、４ｅ…圧力制御弁、４ｆ…圧力センサ、４ｇ…圧
力コントローラ。DESCRIPTION OF SYMBOLS 1 ... Liquid analyzer, 2 ... Near infrared analyzer, 3 ... Sample supply apparatus (pump), 4 ... Pressure control apparatus, 4d ... Air vent pipe, 4e ... Pressure control valve, 4f ... Pressure sensor, 4g ... Pressure controller.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 三浦 剛 神奈川県川崎市多摩区菅仙谷３−１−28 −203 (56)参考文献 特開 昭59−65746（ＪＰ，Ａ) 実開 昭60−185254（ＪＰ，Ｕ) 実開 昭61−131644（ＪＰ，Ｕ) 実開 昭60−185254（ＪＰ，Ｕ) 実開 昭61−131644（ＪＰ，Ｕ) 特公 昭62−23815（ＪＰ，Ｂ２) ────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tsuyoshi Miura 3-1-28-203, Sugenzaya, Tama-ku, Kawasaki-shi, Kanagawa (56) References JP-A-59-65746 (JP, A) (JP, U) JP-A 61-131644 (JP, U) JP-A 60-185254 (JP, U) JP-A 61-131644 (JP, U) JP-B 62-2815 (JP, B2)
Claims (2)
と、この近赤外線分析装置へ液体を供給する試料供給装
置と、これら近赤外線分析装置と試料供給装置とを直接
連結するチューブに設けられた圧力制御装置とからなる
液体の分析装置であって、前記圧力制御装置は、前記チ
ューブ内の空気を放出する空気抜き管と、チューブ内の
流体の圧力を制御する圧力制御弁と、チューブ内の圧力
を測る圧力センサとからなり、これら空気抜き管、圧力
制御弁及び圧力センサが液体の流れ方向に順に配置さ
れ、充分に空気の抜かれた液体を圧力センサの圧力が一
定になるように圧力制御弁にて制御する圧力コントロー
ラを有することを特徴とした液体の分析装置。1. A near-infrared analyzer for analyzing a component of a liquid, a sample supply device for supplying a liquid to the near-infrared analyzer, and a tube directly connecting the near-infrared analyzer and the sample supply device. A pressure control device, wherein the pressure control device is an air vent pipe that discharges air in the tube, a pressure control valve that controls the pressure of the fluid in the tube, and a pressure control valve in the tube. consists of a pressure sensor for measuring the pressure, these air vent pipe, a pressure control valve and the pressure sensor are arranged in this order in the flow direction of the liquid, sufficiently pressure control valve so that the pressure of the pressure sensor unplugged liquid with air becomes constant Pressure control controlled by
Analysis system for a liquid which is characterized by having a La.
と、この近赤外線分析装置へ液体を供給する試料供給装
置と、これら近赤外線分析装置と試料供給装置とを直接
連結するチューブに設けられた圧力制御装置とからなる
液体の分析装置であって、前記試料供給装置はポンプと
され、また前記圧力制御装置は前記チューブ内の空気を
放出する空気抜き管とチューブ内の圧力を測る圧力セン
サとからなり、これらポンプ、空気抜き管および圧力セ
ンサが液体の流れ方向に順に配置され、ポンプで加圧し
た流体から充分に空気を抜き、その液体を圧力センサの
圧力が一定になるようにポンプの回転数制御にて制御す
る圧力コントローラを有することを特徴とした液体の分
析装置。2. A near-infrared analyzer for analyzing a component of a liquid, a sample supply device for supplying a liquid to the near-infrared analyzer, and a tube directly connecting the near-infrared analyzer and the sample supply device. A liquid analyzer comprising a pressure control device, wherein the sample supply device is a pump, and the pressure control device is an air vent tube for discharging air in the tube, and a pressure sensor for measuring pressure in the tube. These pumps, air vent pipes and pressure sensors are arranged in order in the flow direction of the liquid, and the pump is rotated sufficiently so that air is sufficiently extracted from the fluid pressurized by the pump and the pressure of the pressure sensor is kept constant. It is controlled by the number control
Liquid analyzer having a pressure controller .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23931193A JP2597075B2 (en) | 1993-09-27 | 1993-09-27 | Liquid analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23931193A JP2597075B2 (en) | 1993-09-27 | 1993-09-27 | Liquid analyzer |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29082887A Division JPH0638068B2 (en) | 1987-11-18 | 1987-11-18 | Liquid analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06341951A JPH06341951A (en) | 1994-12-13 |
| JP2597075B2 true JP2597075B2 (en) | 1997-04-02 |
Family
ID=17042832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23931193A Expired - Fee Related JP2597075B2 (en) | 1993-09-27 | 1993-09-27 | Liquid analyzer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2597075B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4740010B2 (en) * | 2005-04-13 | 2011-08-03 | 富士フイルム株式会社 | Liquid feeding device, liquid feeding method thereof, and measuring device using total reflection attenuation |
| JP2006300743A (en) * | 2005-04-21 | 2006-11-02 | Shizuoka Prefecture | Chemical substance detection device utilizing plurality of sensors |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5965746A (en) * | 1982-10-07 | 1984-04-14 | Chiyoda Chem Eng & Constr Co Ltd | Method and apparatus for sampling liquid |
| JPS5972019A (en) * | 1982-10-18 | 1984-04-23 | Hanshin Electric Co Ltd | Flow rate-voltage converting device |
| JPS6013150A (en) * | 1983-06-30 | 1985-01-23 | 塩野 輝之 | Foundation waterproof mat |
| US4672886A (en) * | 1985-05-24 | 1987-06-16 | Bowles Fluidics Corporation | Oscillating air stream apparatus for automobile defroster |
-
1993
- 1993-09-27 JP JP23931193A patent/JP2597075B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06341951A (en) | 1994-12-13 |
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