JPH0684346U - Cleaning liquid delivery device and analyzer using the same - Google Patents
Cleaning liquid delivery device and analyzer using the sameInfo
- Publication number
- JPH0684346U JPH0684346U JP2595293U JP2595293U JPH0684346U JP H0684346 U JPH0684346 U JP H0684346U JP 2595293 U JP2595293 U JP 2595293U JP 2595293 U JP2595293 U JP 2595293U JP H0684346 U JPH0684346 U JP H0684346U
- Authority
- JP
- Japan
- Prior art keywords
- cleaning liquid
- liquid
- pressure
- inert gas
- container
- 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
- Sampling And Sample Adjustment (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
(57)【要約】
【構成】 圧力を持った不活性ガス源と、密閉された耐
圧性の洗浄液容器と、送液管と、流量調節器とから構成
され、不活性ガスの圧力によって洗浄液を洗浄槽に送
る。
【効果】 洗浄液が有機溶媒の時などの爆発性蒸気を発
するものであっても安全に、かつ、接液部を耐食性のあ
るものにより構成することにより、耐食性を持って安価
に、洗浄液を送液することができる。
(57) [Summary] [Structure] An inert gas source with pressure, a sealed pressure-resistant cleaning liquid container, a liquid feed pipe, and a flow controller are used to clean the cleaning liquid by the pressure of the inert gas. Send to cleaning tank. [Effect] Even if the cleaning liquid emits explosive vapor when it is an organic solvent, the cleaning liquid can be sent safely and inexpensively by configuring the liquid contact part with a corrosion-resistant material. Can be liquefied.
Description
【0001】[0001]
液体試料を機械的に適宜選択して供給するオートサンプラーと、オートサンプ ラーから試料を供給されて分析を行なう分析装置(例えば、プラズマ発光分光分 析装置、プラズマ質量分析装置や原子吸光分析装置)に関し、特にそのうち、オ ートサンプラーの洗浄液の送液装置に関する。 An autosampler that mechanically appropriately selects and supplies a liquid sample, and an analyzer that supplies a sample from the autosampler and performs analysis (for example, plasma emission spectroscopic analyzer, plasma mass spectrometer or atomic absorption spectrometer) In particular, the present invention relates to an apparatus for feeding a cleaning liquid for an auto sampler.
【0002】[0002]
試料を送液する送液ポンプを用いて洗浄液を送液する。 The washing solution is sent using a solution sending pump that sends the sample.
【0003】[0003]
試料を送液する送液ポンプは、高精度・高耐久性・高耐食性が要求されるため 、特に、有機溶媒を送液しようとする場合には、非常に高価であり、メンテナン スコストも大きい。 Since the liquid feed pump that feeds the sample is required to have high accuracy, high durability, and high corrosion resistance, it is extremely expensive, especially when trying to feed an organic solvent, and the maintenance cost is high.
【0004】 例えば、チューブをしごいてチューブ内の液体を送液するチューブポンプを用 いる場合には、有機溶媒に侵されない材質のチューブは高価であり、劣化に伴う 交換が必要なためメンテナンスコストも大きい。接液部をすべて弗素樹脂にした ポンプも高価であり、接液部の劣化に伴う部品の交換など、メンテナンスコスト も大きい。For example, when using a tube pump that squeezes the liquid in the tube by squeezing the tube, a tube made of a material that is not corroded by an organic solvent is expensive, and replacement due to deterioration is required, so maintenance costs are high. Is also big. A pump with all wetted parts made of fluorine resin is also expensive, and maintenance costs are high, such as replacement of parts due to deterioration of wetted parts.
【0005】[0005]
試料の送液の場合は試料が適宜交換されるため、途中に空気が入ってもよいよ うに自吸式の送液ポンプが不可欠である。一方、洗浄液の場合は同じ液を常に一 定の割合で供給すればよいので、必ずしも自吸式の送液ポンプである必要はない 。また、試料が分析装置に供給される量よりも、やや多い量の洗浄液を送液すれ ば、送液量の多寡にそれほどの精度は要求されない。 そこで、洗浄液を密閉し た容器の中にいれ、アルゴン・窒素等の不活性ガスを用いて、五十キロパスカル (0.5重力キログラム毎平方センチメートル)程度の圧力を加えることにより 送液する。送液量は、送液管の途中に挿入した流量調節器で調節する。 In the case of sample delivery, the sample is replaced appropriately, so a self-priming liquid delivery pump is indispensable so that air may enter in the middle. On the other hand, in the case of the cleaning liquid, the same liquid needs to be always supplied at a constant rate, and therefore it is not necessarily a self-priming liquid transfer pump. In addition, if a slightly larger amount of the cleaning liquid is supplied than the amount of the sample supplied to the analyzer, the accuracy of the amount of the liquid supplied is not required. Therefore, the cleaning solution is placed in a sealed container, and an inert gas such as argon or nitrogen is used to apply a pressure of about 50 kilopascals (0.5 gravity kilogram per square centimeter) to deliver the solution. The amount of liquid to be sent is adjusted by a flow rate controller inserted in the middle of the liquid sending pipe.
【0006】[0006]
洗浄液は、洗浄液容器に加えられた圧力により送液されるとともに、流量調節 器で流量を調節されて洗浄槽に供給される。 The cleaning liquid is delivered by the pressure applied to the cleaning liquid container, and the flow rate of the cleaning liquid is adjusted by the flow controller to be supplied to the cleaning tank.
【0007】[0007]
以下実施例に基づき、詳細に説明する。 図1は、本考案の実施例である。通常は不活性ガス6の供給圧力は、五百〜千 キロパスカル(約五〜十重力キログラム毎平方メートル)程度であるので、本実 施例では圧力調整器7と圧力計5を用いて、試料の送液に必要な程度の適当な圧 力(五十キロパスカル程度)に下げる。これにより、耐圧性の低い容器8を使用 することができる。圧力調整せずに高圧のまま加えるとともに、容器8や流量調 節器13などの耐圧性を大きくするなどの適当な安全策を講じることもできる。 The details will be described below based on examples. FIG. 1 shows an embodiment of the present invention. Normally, the supply pressure of the inert gas 6 is about 500 to 1,000 kilopascals (about 5 to 10 gravitational kilograms per square meter). Therefore, in this embodiment, the pressure regulator 7 and the pressure gauge 5 are used to measure the sample. To an appropriate pressure (about 50 kilopascals) that is necessary to transfer the solution. Thereby, the container 8 having low pressure resistance can be used. Appropriate safety measures such as increasing the pressure resistance of the container 8 and the flow regulator 13 can be taken while adding the high pressure as it is without adjusting the pressure.
【0008】 圧力調整されたガスは、四方弁4を挿入された送気管11を通って容器8に供 給される。この四方弁4は、本考案の送液装置を用いないときに、容器8内の圧 力を抜くものであり、ガス逃がし口4aの先端には、周囲雰囲気が容器8内に混 入することの無いように逆止弁3が取り付けられている。四方弁4のかわりに逃 がし弁などの適当な手段をもうけてもよい。容器8内には、洗浄液9が入れられ ており、送気管11の接続口11aは、洗浄液9と接しないように容器8の上部 に設けられる。これにより、容器8内の圧力を抜く場合にも洗浄液9が四方弁4 から逆流しない。The gas whose pressure has been adjusted is supplied to the container 8 through the air supply pipe 11 in which the four-way valve 4 is inserted. This four-way valve 4 is for releasing the pressure in the container 8 when the liquid delivery device of the present invention is not used, and the ambient atmosphere is mixed into the container 8 at the tip of the gas escape port 4a. The check valve 3 is attached so that there is no. Instead of the four-way valve 4, a suitable means such as a relief valve may be provided. A cleaning liquid 9 is contained in the container 8, and the connection port 11 a of the air supply pipe 11 is provided above the container 8 so as not to come into contact with the cleaning liquid 9. As a result, the cleaning liquid 9 does not flow back from the four-way valve 4 even when the pressure inside the container 8 is released.
【0009】 試料を送る送液管10の接続口10aは、洗浄液9をできるだけ残さぬように 、容器8の下部に設けられる。図1では、洗浄液9の販売時の容器がそのまま用 いられるように、容器8の上部から送液管10が挿入されているが、容器8の下 部に直接送液管10を接続する構成としても構わない。密閉された容器8に圧力 が加えられるため、洗浄液9は送液管10から押し出されるようにして送液され る。送液される液量は、洗浄液9の消費を抑えるために、必要最小限であること が望ましい。そこで、送液管10の、容器8と図示しない洗浄槽1の間に流量調 節器2を挿入する。これにより、必要最小限の液量が図示しない洗浄槽1に送液 される。The connection port 10 a of the liquid sending pipe 10 for sending the sample is provided in the lower part of the container 8 so as to leave the cleaning liquid 9 as little as possible. In FIG. 1, the liquid sending pipe 10 is inserted from the upper part of the container 8 so that the container used when the cleaning liquid 9 is sold can be used as it is, but the liquid sending pipe 10 is directly connected to the lower part of the container 8. It doesn't matter. Since the pressure is applied to the closed container 8, the cleaning liquid 9 is delivered as if it is pushed out from the liquid delivery pipe 10. It is desirable that the amount of liquid to be sent be the minimum necessary in order to suppress the consumption of the cleaning liquid 9. Therefore, the flow rate regulator 2 is inserted between the container 8 and the cleaning tank 1 (not shown) of the liquid supply pipe 10. As a result, the required minimum amount of liquid is sent to the cleaning tank 1 (not shown).
【0010】 上記の内、送気管11と送液管10は、各部を直接つなぐことにより、一部ま たは全部を省略してもよい。Of the above, the air supply pipe 11 and the liquid supply pipe 10 may be partially or entirely omitted by directly connecting the respective parts.
【0011】[0011]
プラズマ発光分析装置・プラズマ質量分析装置・原子吸光分析装置などの分析 装置ではアルゴンガス・窒素ガスなどの不活性ガスを使用するので、その不活性 ガスを用いることにより、洗浄液が有機溶媒の時などの爆発性蒸気を発するもの であっても安全に、かつ、接液部を耐食性のあるものにより構成することにより 、耐食性を持って安価に、洗浄液を送液することができる。 Plasma analyzers, plasma mass spectrometers, atomic absorption spectrometers, and other analyzers use an inert gas such as argon gas or nitrogen gas. Even if it emits explosive vapor, the cleaning liquid can be sent safely with corrosion resistance and at a low cost by configuring the liquid contact part with a material having corrosion resistance.
【図1】本考案の実施例を示す模式図である。FIG. 1 is a schematic view showing an embodiment of the present invention.
【図2】従来の実施例を示す模式図である。FIG. 2 is a schematic view showing a conventional example.
【符号の説明】 1 洗浄槽 2 流量調節器 3 逆止弁 4 四方弁 4a ガス逃がし口 5 圧力計 6 不活性ガス 7 圧力調節器 8 洗浄液容器 9 洗浄液 10 送液管 10a 接続口 11 送気管 11a 接続口 12 送液ポンプ 13 ポンプ調節器[Explanation of Codes] 1 Cleaning tank 2 Flow controller 3 Check valve 4 Four-way valve 4a Gas escape port 5 Pressure gauge 6 Inert gas 7 Pressure regulator 8 Cleaning liquid container 9 Cleaning liquid 10 Liquid supply pipe 10a Connection port 11 Air supply pipe 11a Connection port 12 Liquid feed pump 13 Pump controller
Claims (3)
性ガス源と、前記不活性ガス源と送気管にて配管されて
おり、洗浄液を収納し、そして耐圧性の容器からなる洗
浄液容器と、耐食性の材質で構成された送液管と、弗素
樹脂などの耐食性の材質で構成された流量調節器とから
構成され、不活性ガスの圧力によって洗浄液を洗浄槽に
送ることを特徴とする洗浄液送液装置。1. A cleaning liquid container comprising an inert gas source that stores an inert gas under pressure, and a pipe that is connected to the inert gas source by an air supply pipe, stores a cleaning liquid, and is a pressure resistant container. And a liquid delivery pipe made of a corrosion resistant material and a flow rate regulator made of a corrosion resistant material such as fluororesin, and the cleaning liquid is sent to the cleaning tank by the pressure of the inert gas. Cleaning liquid delivery device.
たことを特徴とするオートサンプラー。2. An autosampler comprising the cleaning liquid delivery device according to claim 1.
えたことを特徴とする分析装置。3. An analysis apparatus comprising the autosampler according to claim 2.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2595293U JPH0684346U (en) | 1993-05-19 | 1993-05-19 | Cleaning liquid delivery device and analyzer using the same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2595293U JPH0684346U (en) | 1993-05-19 | 1993-05-19 | Cleaning liquid delivery device and analyzer using the same |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0684346U true JPH0684346U (en) | 1994-12-02 |
Family
ID=12180101
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2595293U Pending JPH0684346U (en) | 1993-05-19 | 1993-05-19 | Cleaning liquid delivery device and analyzer using the same |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0684346U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113508296A (en) * | 2019-03-06 | 2021-10-15 | 株式会社岛津制作所 | Liquid chromatograph |
-
1993
- 1993-05-19 JP JP2595293U patent/JPH0684346U/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113508296A (en) * | 2019-03-06 | 2021-10-15 | 株式会社岛津制作所 | Liquid chromatograph |
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