JPS60257810A - Degassing apparatus - Google Patents
Degassing apparatusInfo
- Publication number
- JPS60257810A JPS60257810A JP11429484A JP11429484A JPS60257810A JP S60257810 A JPS60257810 A JP S60257810A JP 11429484 A JP11429484 A JP 11429484A JP 11429484 A JP11429484 A JP 11429484A JP S60257810 A JPS60257810 A JP S60257810A
- Authority
- JP
- Japan
- Prior art keywords
- vacuum chamber
- vacuum
- vacuum pump
- solenoid valve
- pump
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D19/00—Degasification of liquids
- B01D19/0063—Regulation, control including valves and floats
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Degasification And Air Bubble Elimination (AREA)
Abstract
Description
【発明の詳細な説明】
技術分野
本発明は液体中に溶存する気体を除去する脱気装置に関
し、さらに詳しくは液体クロマトグラフによる分析にお
いて、試料および溶離液中に溶存する空気を除去する脱
気装置に関する。Detailed Description of the Invention Technical Field The present invention relates to a degassing device for removing gas dissolved in a liquid, and more particularly to a degassing device for removing air dissolved in a sample and an eluent in analysis by liquid chromatography. Regarding equipment.
従来技術
液体クロマトグラフにエリ分離、分析を行なう場合、そ
の分析性能全向上させるため、試料お工び溶離液中の溶
存空気を除去する脱気装置が使用されるようになってき
た。BACKGROUND OF THE INVENTION When performing electrochemical separation and analysis using a liquid chromatograph, deaerators have come to be used to remove air dissolved in sample preparation and eluent in order to improve the overall analytical performance.
一般に上記脱気装置Ａは、第３図に７点鎖線で囲って示
すように、スパイラルチューブ状疎水性高分子膜１が内
蔵された真空チャンバ２と、この真空チャンバ２の真空
産金検出して制御回路３ケ介して真空ポンプ４を始動或
いは停止させる圧力センサ５とによって構成されている
。Generally, the degassing device A includes a vacuum chamber 2 in which a spiral tubular hydrophobic polymer membrane 1 is built-in, and a vacuum gold detecting device in the vacuum chamber 2, as shown surrounded by a seven-dot chain line in FIG. and a pressure sensor 5 that starts or stops the vacuum pump 4 via three control circuits.
上記チューブ状高分子膜１内に導入された溶離液６中の
空気は、高分子膜１全通して真空チャンバ２内に拡散、
除去され、空気の除去された溶離液６は高速液体クロマ
トグラフ７に導かれる。この間、真空チャンバ２の真空
度は、真空ポンプ４の吸引、大気８への放出によって保
持される。その場合、真空ポンプ４は、機能的には連続
運転して真空チャンバ２内の真空度を保持１〜でもよい
が、真空ポンプ４の寿命が短かくなるため、圧力センサ
５によって真空度を検出し、真空ポンプ４を始動或いは
停止して真空度τ一定の範囲に保持している。The air in the eluent 6 introduced into the tubular polymer membrane 1 passes through the entire polymer membrane 1 and diffuses into the vacuum chamber 2.
The removed and air-free eluent 6 is led to a high performance liquid chromatograph 7 . During this time, the degree of vacuum in the vacuum chamber 2 is maintained by suction by the vacuum pump 4 and discharge to the atmosphere 8. In that case, the vacuum pump 4 may be functionally operated continuously to maintain the degree of vacuum in the vacuum chamber 2, but the life of the vacuum pump 4 will be shortened, so the pressure sensor 5 will detect the degree of vacuum. Then, the vacuum pump 4 is started or stopped to maintain the degree of vacuum within a constant range τ.
従来技術の問題点 ところで、上記条件で使用される真空ポンプは。Problems with conventional technology By the way, the vacuum pump used under the above conditions.
停止中においても真空チャンバ２内の真空を保持するも
のでなければならず、再スタート時には真空度の商い状
態より始動するため大きなトルクが要求烙れる。したか
つて、ダイヤフラム９の停止位ｉｔの固定化、真空ポン
プ４の吸吐弁１０の改良等が必要となり、これらの対策
が可能な比較的大形の真空ポンプ４全使用せざるを得す
、脱気装置全体の、ｔｔ−形状が犬きくなり、扱いにく
く、かつ場所をとる不都合があったわ
発明の目的および構成
本発明は上記の事情に鑑み、何ら機能を低下させずに、
小型真空ポンプ分用いた、＠敞、かつ場所をとらない脱
気装置を提供することを目的とするもので、その要旨は
、気体を醇存する液体を、真空チャンバ内に設けられた
チューブ状扁分子膜内命通過させて一溶存する気ｉ＄を
除去する脱気装状において、上記真空チャンバを真空引
きする真空ポンプと、この真空ポンプと上記真空チャン
バの間の配管に奴付けられた三方電磁弁と、ヒ記真空チ
ャンバ内の圧力上丁！ＪＭを検出する圧力センサと、こ
の圧力センサの信号に工って−−。上記真空ポンプの起
動、停止および三方弁の切換を行なう、ｌｉｌ］御回路
とを具備してなり、上記三方電磁弁は、通亀甲、真空チ
ャンバ側と真空ポンプ側とが連通され、他方側が閉とな
り、通電停止中、真空チャンバ側が閉となり、他方側は
大気開放されるとともに真空ポンプ側と連通ずる構成と
なっている脱気装置にある。The vacuum in the vacuum chamber 2 must be maintained even during a stop, and when restarting, a large torque is required since the start is based on a state where the degree of vacuum is low. In the past, it became necessary to fix the stop position IT of the diaphragm 9, improve the suction and discharge valve 10 of the vacuum pump 4, etc., and it was necessary to use all of the relatively large vacuum pumps 4 that could take these measures. The degassing device as a whole has a tt-shape, which makes it difficult to handle and takes up a lot of space.Objects and Structure of the Invention In view of the above circumstances, the present invention has been developed to
The purpose of this is to provide a degassing device that uses a small vacuum pump and does not take up much space. In the deaeration system for removing dissolved air by passing through the molecular membrane, a vacuum pump that evacuates the vacuum chamber, and a three-sided pipe attached to the piping between this vacuum pump and the vacuum chamber are used. Solenoid valve and pressure inside the vacuum chamber! A pressure sensor that detects JM and a signal from this pressure sensor are used. The three-way solenoid valve is equipped with a control circuit for starting and stopping the vacuum pump and switching the three-way valve. The degassing device has a structure in which the vacuum chamber side is closed and the other side is opened to the atmosphere and communicated with the vacuum pump side while the power supply is stopped.
本発明の具体的構成
第１図は本発明に係る脱気装置の一実施例を示すもので
、第３図と同一部分には同一符号を付してその説明を省
略する。図中符号１１は、三方電磁弁で、通電中におい
ては、真空チャンバ２１１１１１１１ａと真空ポンプ１
２側１１ｂとが連通し、他方側１１ｃか閉となり１通電
停止中は、１１ａが閉、ｌｌｂと１１ ｃが連通ずると
ともＫ １．１ ｃが大気開放するようになっている。Detailed Structure of the Present Invention FIG. 1 shows an embodiment of a degassing device according to the present invention, and the same parts as in FIG. 3 are given the same reference numerals and the explanation thereof will be omitted. Reference numeral 11 in the figure is a three-way solenoid valve, which when energized operates between the vacuum chamber 21111111a and the vacuum pump 1.
The second side 11b is in communication, and the other side 11c is closed, so that during the first energization stop, 11a is closed, and when Ilb and 11c are in communication, K1.1c is opened to the atmosphere.
また、圧力セン＋ｊ５の信号に、ｃつで作動し、上記三
方電磁弁１１および真空ポンプ１２に通電：或はこれを
切る制御回路３は、通電：する場合、真空ポンプ１２に
通電した後、三方電磁弁１１に通［五し、これを切る場
合、三方電磁弁への通電を切った後、真空ポンプ１２へ
の通電を切るようになっている。In addition, the control circuit 3, which operates at c and energizes the three-way solenoid valve 11 and the vacuum pump 12 or turns them off in response to the signal from the pressure sensor +j5, energizes the vacuum pump 12 and then energizes the vacuum pump 12. When the three-way solenoid valve 11 is turned on and off, the power to the vacuum pump 12 is turned off after the three-way solenoid valve is turned off.
本発明の具体的作用効果
本発明に係る脱気装置は上記の構成となっているので、
真空ポンプ］、 ２ Ｖ（、、Ｊ：つて吸引され、真空
ｆヤンバ２が所定の圧に低下すると、圧力センサ５の信
号Ｖ′Ｃよって制釧１回路３が作動（−２，先ず三方面
１：咲弁１１への通電が切られ、ｌｌａが閉となり真空
チャンバ２内の減圧状態が保持されるとともＶこ、真空
ポンプ１２の吸引側はｌｌｂ、ｌｌｃを介して大気開放
となる。次いで真空ポンプ１２への通電が切られ、停止
する。この場合、三方電磁弁１１の真空チャンバ側１１
ａが閉となるので、真空ポンプのダイヤフラムの固定化
成いは特殊な吸吐弁等を考慮する必要なく、回転真空ポ
ンプ等が自由に選択可能となる。Specific effects of the present invention Since the deaerator according to the present invention has the above configuration,
Vacuum pump], 2 V (,, J: When the vacuum f yamba 2 drops to a predetermined pressure, the control 1 circuit 3 is activated by the signal V'C of the pressure sensor 5 (-2, first, the three-way 1: The power supply to the bloom valve 11 is cut off, lla is closed and the reduced pressure state in the vacuum chamber 2 is maintained, and the suction side of the vacuum pump 12 is opened to the atmosphere via llb and llc. Next, the power to the vacuum pump 12 is cut off and stopped.In this case, the vacuum chamber side 11 of the three-way solenoid valve 11
Since a is closed, it is not necessary to consider special suction/discharge valves, etc. for the fixed configuration of the diaphragm of the vacuum pump, and a rotary vacuum pump or the like can be freely selected.
丑だ、高分子膜を通過した空気が真空チャンバ２内に蓄
積きれ内ｊ王が上昇すると、圧力センサ５の信号によっ
て制御回路が作ｌ仙（−７、通′屯を開始する。この場
合、先ず真空ポンプ１２が辿′ｄ仏１（琶勅されるが、
吸引側が大気開放となっているので小格なトルクで容易
に始動される。次いで、三方電磁弁１１が通電され、ｌ
ｌａ、１ ｌ ｂが連期され。However, when the air that has passed through the polymer membrane accumulates in the vacuum chamber 2 and the pressure rises, the control circuit starts to operate due to the signal from the pressure sensor 5. In this case, , first, the vacuum pump 12 is
Since the suction side is open to the atmosphere, it can be started easily with a small torque. Next, the three-way solenoid valve 11 is energized, and l
la, 1 l b are synchronized.
］−１ｃが閉となるが、この時点で工１、空ボング１２
はフル回転しており、ｌｌａと真空ポンプ４間の小ぜい
スペースは瞬時に減圧され、真空チャンバ２内の正分上
昇させることはない。]-1c is closed, but at this point, there are 1 and 12 empty bongs.
is rotating at full speed, the small space between lla and the vacuum pump 4 is instantly reduced in pressure, and the pressure inside the vacuum chamber 2 is not increased.
このように、真空ポンプ１２は一再始＠に大きなトルク
を必快とせず、小型なものでよく、脱気装（１焚八は、
機能的に低下することなく、軽量、かつ小型なもの（例
えば重量；／／−１容財、６θ％）とすることか出来る
。In this way, the vacuum pump 12 does not necessarily have to produce a large torque from start to finish, and can be small in size.
It can be made lightweight and small (for example, weight: //-1 capacity, 6θ%) without functional deterioration.
本発明の他の具体的
第−図は制御１１ｉＩ：Ｕ路を簡素化するため、三方電
磁弁１１および真空ポンプ１２が同時に起動停止するよ
うになっているものである。この場合、再スタートの三
方電磁弁１１の切換時、瞬間的ｔｒｃ真空チャンバ２と
大気が連通１〜、一時的に圧が上昇する。この／こめ、
三方１′■磁弁１１の他方’ＡＵ １１ ｃに空気の出
入に対する抵抗前１３を取付けることに工って、と記昇
圧金防止したものである。栂←舎すｔ會うサ宜神低ｊ元
Ｉ牙１３をとり付けないと、真空１現が下ってポンプ稼
動時間か長くなって、ポンプの消費電力が」着火するの
で、これを取付けた方が好ましい。また、真空ボ／グ始
ｒＩＩＪＪ時には、吸引（…（が抵抗’ｉ￥ １３ ’
ｘ介して大気と連通さｌしているので、小さな始動トル
クによってスタートすることが出来る。In another specific example of the present invention, in order to simplify the control 11iI:U path, the three-way solenoid valve 11 and the vacuum pump 12 are started and stopped at the same time. In this case, when the three-way solenoid valve 11 is switched for restart, the pressure temporarily increases when the TRC vacuum chamber 2 and the atmosphere are communicated with each other. This/kome,
A resistor 13 against air inflow and outflow is installed on the other side of the three-way solenoid valve 11 to prevent pressure increase. If I don't install the 13, the vacuum will drop and the pump will run longer, and the power consumption of the pump will increase, so I installed this. is preferable. In addition, when starting the vacuum pump, suction (...(but resistance 'i\13'
Since it is in communication with the atmosphere through x, it can be started with a small starting torque.
本発明の効果
１以上述べたように１本発明に係る脱気装ｕ：４．ば、
小型の真空ポンプを始りの、４都止して真空チャンバオ
所定範囲の減圧状態ンこ保札することが出来るので、軽
鼠化され、扱い易く、冴だ所婚スペースも少々（、極め
て便利に使用出来るものである。Effects of the present invention 1 As mentioned above, 1 deaerator u according to the present invention: 4. Ba,
It is possible to use a small vacuum pump at the beginning or end of the vacuum chamber to maintain a predetermined range of depressurization, making it lightweight, easy to handle, and requires only a small amount of space (extremely convenient). It can be used for.
第７図は、本発明に係る脱気装置の一実ｌ＠例のフロー
を示す図、第、、２図は、他の実ｋｍ例を示す第１図相
当図、第３図は従来のフローを示す図である。
１・・・・・・プユープ状同分子膜、２・・・・・・真
空チャンバ、３・・・・・・ｉ訂；」岬回路、４・・・
・真空ポンプ、５ ・・・圧力 １゛センサ、６・・・
・・・酊離液−ｌ・・・山茜速ガスクロマトグラフ、８
・・・・・・大気、９・・・・・・ダイヤノフム、ｌ。
・・・・吸吐弁、１１・・・・・・三方電磁弁−１１ａ
・・・・・・真空チャンバ側、１ｌｂ−・・・・・真空
ポンプ側、ｌｌｃ・・他方側−１２・・・・・・真空ポ
ンプ、１３・・・・・・抵抗管−八・・・・脱気装置。
出頭人昭和屯工株式会社
代理人 升埋士 志賀止笑
５ ′
第２図
第３１Fig. 7 is a diagram showing the flow of one example of the deaeration device according to the present invention, Figs. It is a figure showing a flow. 1... Puyupu-like homomolecular membrane, 2... Vacuum chamber, 3... i-revised; Misaki circuit, 4...
・Vacuum pump, 5...Pressure 1゛sensor, 6...
... Distilled syneresis-l...Yamakane speed gas chromatograph, 8
...atmosphere, 9...dianohum, l. ...Suction and discharge valve, 11...Three-way solenoid valve-11a
...Vacuum chamber side, 1lb-...Vacuum pump side, LLC...Other side -12...Vacuum pump, 13...Resistance tube -8... ...Deaerator. Appearing person Showa Tunko Co., Ltd. Agent Masu Burial Officer Shiga Tosho 5' Figure 2 Figure 31
Claims (1)
ューブ状高分子膜内を通過させて、溶存する気体を除去
する脱気装置において、上記真空チャンバ全真空引きす
る真空ポンプと、この真空ポンプおよび上記真空チャン
バの間の配管に取付けられた三方電磁弁と、上記真空チ
ャンバ内の圧力上下限を検出する圧力センサと、この圧
力センサの信号によって、上記真空ポンプの起や、停止
および三方弁の流路切換を行なう制御回路とを具備して
なり、上記三方１ｔｍ、弁は、通電中、真空チャンバ側
と真空ポンプ側とが連通嘔れ、他方側が閉となり１通電
停止中、真空チャンバ側が閉となり、他方側は大気開放
筋れるとともに真空ポンプ側と連通ずる構成となってい
ることを特徴とする脱気装置。 （２）三方弁の他方側に大気？５出人に対する抵抗管を
設けてなる特許請求の範囲第１ｊＪ１記載の脱気装置。[Claims] In a degassing device that removes dissolved gas by passing a liquid containing dissolved gas through a tubular polymer membrane provided in a vacuum chamber, the vacuum chamber is fully evacuated. A pump, a three-way solenoid valve attached to the piping between the vacuum pump and the vacuum chamber, a pressure sensor that detects the upper and lower limits of the pressure in the vacuum chamber, and a signal from the pressure sensor to start the vacuum pump. and a control circuit for stopping and switching the flow path of the three-way valve, and when the three-way 1tm valve is energized, the vacuum chamber side and the vacuum pump side are not in communication, and the other side is closed, and the valve is energized once. 1. A degassing device characterized in that during stoppage, the vacuum chamber side is closed, and the other side is opened to the atmosphere and communicated with the vacuum pump side. (2) Is there air on the other side of the three-way valve? 5. The degassing device according to claim 1jJ1, which is provided with a resistance pipe for removing air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11429484A JPS60257810A (en) | 1984-06-04 | 1984-06-04 | Degassing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11429484A JPS60257810A (en) | 1984-06-04 | 1984-06-04 | Degassing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60257810A true JPS60257810A (en) | 1985-12-19 |
Family
ID=14634255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11429484A Pending JPS60257810A (en) | 1984-06-04 | 1984-06-04 | Degassing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60257810A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6359306A (en) * | 1986-08-29 | 1988-03-15 | Mitsui Eng & Shipbuild Co Ltd | Organic liquid separation device |
| US4869732A (en) * | 1988-12-23 | 1989-09-26 | Texaco Inc. | Deoxygenation of aqueous polymer solutions used in enhanced oil recovery processes |
| US5183486A (en) * | 1990-12-04 | 1993-02-02 | Spectra-Physics, Inc. | Apparatus for degassing a liquid |
| JP2010151671A (en) * | 2008-12-25 | 2010-07-08 | Tosoh Corp | Degasifier of gas dissolved in liquid and degasifying method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54123785A (en) * | 1978-02-24 | 1979-09-26 | Du Pont | Deaerator |
-
1984
- 1984-06-04 JP JP11429484A patent/JPS60257810A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54123785A (en) * | 1978-02-24 | 1979-09-26 | Du Pont | Deaerator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6359306A (en) * | 1986-08-29 | 1988-03-15 | Mitsui Eng & Shipbuild Co Ltd | Organic liquid separation device |
| US4869732A (en) * | 1988-12-23 | 1989-09-26 | Texaco Inc. | Deoxygenation of aqueous polymer solutions used in enhanced oil recovery processes |
| US5183486A (en) * | 1990-12-04 | 1993-02-02 | Spectra-Physics, Inc. | Apparatus for degassing a liquid |
| US5279647A (en) * | 1990-12-04 | 1994-01-18 | Thermo Separation Products (California) Inc. | Methods and apparatus for degassing a liquid |
| US5290340A (en) * | 1990-12-04 | 1994-03-01 | Thermo Separation Products (California) Inc. | Methods and apparatus for degassing a liquid |
| JP2010151671A (en) * | 2008-12-25 | 2010-07-08 | Tosoh Corp | Degasifier of gas dissolved in liquid and degasifying method |
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