JPH049573Y2 - - Google Patents
Info
- Publication number
- JPH049573Y2 JPH049573Y2 JP1984060075U JP6007584U JPH049573Y2 JP H049573 Y2 JPH049573 Y2 JP H049573Y2 JP 1984060075 U JP1984060075 U JP 1984060075U JP 6007584 U JP6007584 U JP 6007584U JP H049573 Y2 JPH049573 Y2 JP H049573Y2
- Authority
- JP
- Japan
- Prior art keywords
- absorption cell
- absorption
- cell
- upper space
- sample gas
- 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
Links
- 238000010521 absorption reaction Methods 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 17
- 239000007789 gas Substances 0.000 description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 230000005494 condensation Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Description
【考案の詳細な説明】
〈産業上の利用分野〉
本考案は、ガス分析計として特に吸収液に試料
ガスを吸収させて吸収液の導電率や色等の変化か
ら試料ガスの分析を行なう湿式のガス分析計に関
する。[Detailed description of the invention] <Industrial application field> The present invention is a wet type gas analyzer that analyzes the sample gas by absorbing the sample gas into an absorption liquid and observing changes in the conductivity, color, etc. of the absorption liquid. related to gas analyzers.
〈従来技術〉
従来のこの種ガス分析計の構成を第１図に示
す。図中、１はフイルタ、２は流量計、３は吸収
セル、４は吸収セル３の上部空間９に接続された
排出ラインＬに設けられた吸引ポンプ、５は排出
ラインＬの吸収セル３と吸引ポンプ４との間の点
Ａにレギユレータ６を介して接続されるバイパス
フイルタである。試料ガスは、吸引ポンプ４の吸
引動作によつて、フイルタ１、流量計２を通つて
吸収セル３内に導入され、吸収液７に吸収され
る。吸収液７は、測定対象ガスの種類によつて適
宜の溶液が用いられる。例えば測定対象ガスが
SO2ガスである場合には、硫酸酸性の過酸化水素
水溶液が用いられる。吸収液７が試料ガスを吸収
することによつて例えば導電率が変化し、その変
化がセル下部に設けた電極８で検出することによ
り、試料ガス中のSO2ガス濃度の分析を行なうこ
とができる。<Prior Art> The configuration of a conventional gas analyzer of this type is shown in FIG. In the figure, 1 is a filter, 2 is a flow meter, 3 is an absorption cell, 4 is a suction pump installed in the discharge line L connected to the upper space 9 of the absorption cell 3, and 5 is the absorption cell 3 in the discharge line L. This is a bypass filter connected to a point A between the suction pump 4 and the regulator 6. The sample gas is introduced into the absorption cell 3 through the filter 1 and the flow meter 2 by the suction operation of the suction pump 4, and is absorbed into the absorption liquid 7. As the absorption liquid 7, an appropriate solution is used depending on the type of gas to be measured. For example, if the gas to be measured is
In the case of SO 2 gas, a sulfuric acid acidic hydrogen peroxide aqueous solution is used. When the absorption liquid 7 absorbs the sample gas, for example, the conductivity changes, and by detecting this change with the electrode 8 provided at the bottom of the cell, it is possible to analyze the SO 2 gas concentration in the sample gas. can.
ところで、このガス分析計においては、吸収セ
ル３内に導入された試料ガスの全てが吸収液７に
吸収されてしまうのではなく、その一部は吸収セ
ル３の上部空間９を通つて吸引ポンプ４側へ排出
される。この排出される試料ガスは吸収液７の中
を通つている関係上、多くの水分を含んでおり、
それが前記上部空間９を通る際に結露し、上部空
間９を取り囲むセル内壁面に水滴が生じる。ま
た、吸収液７の飛散によつても水滴が生じること
がある。 By the way, in this gas analyzer, not all of the sample gas introduced into the absorption cell 3 is absorbed by the absorption liquid 7, but a part of it passes through the upper space 9 of the absorption cell 3 and is absorbed by the suction pump. It is discharged to the 4th side. This discharged sample gas contains a lot of water because it passes through the absorption liquid 7.
As it passes through the upper space 9, it condenses, forming water droplets on the inner wall surface of the cell surrounding the upper space 9. Further, water droplets may also be generated due to scattering of the absorbing liquid 7.
しかるに、これらの原因で生じた水滴はやがて
吸収液７中に落下することとなるが、水滴中には
測定成分が凝縮されていたり、セル内壁面の汚れ
が付着していたりするため、水滴が落下する毎に
指示の上昇を来し、測定上支障が生ずる。特に、
外気温の急激な低下が生じた場合などには、上部
空間９の温度より吸収液７の温度の方が高くなる
ところから、水滴が上部空間９の周囲の内壁面に
結露しやすくなり、それだけ指示上昇の発生回数
が増えるものである。 However, the water droplets generated due to these reasons will eventually fall into the absorption liquid 7, but the water droplets may have condensed components to be measured or dirt from the inner wall of the cell may have adhered to them. Each time it falls, the indicator rises, causing trouble in measurement. especially,
When the outside temperature suddenly drops, the temperature of the absorbent liquid 7 becomes higher than the temperature of the upper space 9, so water droplets tend to condense on the inner wall surface around the upper space 9. This increases the number of times the instruction rises.
〈考案の目的及び構成〉
本考案はこのような点にあつて、セル上部に水
滴が生じないよう、或いは水滴が生じたとしても
落下する前に乾燥するよう工夫することにより、
上述した従来技術における欠点の解消を図つたも
のである。<Purpose and structure of the invention> In view of these points, the present invention is designed to prevent water droplets from forming on the top of the cell, or to dry before falling even if water droplets form.
This is an attempt to eliminate the drawbacks of the prior art described above.
而して、かかる目的を達成するために、本考案
においては、吸収セルの上部空間と接続された排
出ラインに吸引ポンプを設けると共に、前記排出
ラインの吸収セルと吸引ポンプとの間の点にレギ
ユレータを介してバイパスフイルタを接続し、前
記吸引ポンプの吸引動作によつて試料ガスを吸収
セル内に導入し、吸収セル内に収容された吸収液
に試料ガスを吸収させて、吸収液の変化から試料
ガスの分析を行うガス分析計において、一端が前
記レギユレータとバイパスフイルタとの間に接続
され、他端が前記吸収セルの上部空間に接続され
るようにして分岐ラインを設けると共に、この分
岐ラインにキヤピラリーを介装し、前記バイパス
フイルタおよびキヤピラリーを介して前記吸収セ
ルの上部空間内に、水分濃度を低いエヤーを導入
するように構成している。ここに、水分濃度の低
いエヤーとは、吸収液の中を通つてセル上部の空
間に達した試料ガスの濃度に比較して低い濃度の
エヤーを意味する。このような相対的な意味で低
濃度のエヤーであれば、高い水分濃度の試料ガス
を希釈し、結露を防止する等の効果を期待できる
からである。 Therefore, in order to achieve this purpose, in the present invention, a suction pump is provided in the discharge line connected to the upper space of the absorption cell, and a suction pump is provided in the discharge line at a point between the absorption cell and the suction pump. A bypass filter is connected through the regulator, and the sample gas is introduced into the absorption cell by the suction operation of the suction pump, and the sample gas is absorbed into the absorption liquid contained in the absorption cell, thereby changing the absorption liquid. In a gas analyzer that analyzes a sample gas from a sample gas, a branch line is provided such that one end is connected between the regulator and the bypass filter, and the other end is connected to the upper space of the absorption cell. A capillary is interposed in the line, and air with a low moisture concentration is introduced into the upper space of the absorption cell through the bypass filter and the capillary. Here, air with a low moisture concentration means air with a concentration lower than that of the sample gas that has passed through the absorption liquid and reached the space above the cell. This is because air with a relatively low concentration can be expected to have the effect of diluting a sample gas with a high moisture concentration and preventing dew condensation.
〈実施例〉
第２図は本考案一実施例としてのガス分析計の
構成を示す。この分析計はフイルタ１、流量計
２、吸収セル３、吸引ポンプ４、バイパスフイル
タ５及びレギユレータ６から構成されている点は
第１図に示した従来のものと同じであるが、一端
がレギユレータ６とバイパスフイルタ５との間に
接続され、他端が吸収セル３の上部空間９に接続
されるようにして分岐ライン１０を設けると共
に、この分岐ライン１０に流量を微少に抑制する
ためのキヤピラリー１１を介装し、バイパスフイ
ルタ５およびキヤピラリー１，１を介して上部空
間９に、水分濃度の低いエヤーを導入するように
構成した点が異なる。そして、この実施例におい
ては、キヤピラリー１１を設けることにより、導
入されるエヤーの流量を、試料ガスのそれの1/20
〜1/10の範囲になるように設定されている。<Embodiment> FIG. 2 shows the configuration of a gas analyzer as an embodiment of the present invention. This analyzer is composed of a filter 1, a flow meter 2, an absorption cell 3, a suction pump 4, a bypass filter 5, and a regulator 6, which is the same as the conventional analyzer shown in Fig. 1, but one end is connected to the regulator. 6 and the bypass filter 5, and the other end is connected to the upper space 9 of the absorption cell 3, and a branch line 10 is provided, and a capillary is provided in this branch line 10 for slightly suppressing the flow rate. The difference is that air having a low moisture concentration is introduced into the upper space 9 through the bypass filter 5 and the capillaries 1, 1 through the bypass filter 5 and the capillaries 1, 1. In this embodiment, by providing the capillary 11, the flow rate of the introduced air can be reduced to 1/20 of that of the sample gas.
It is set to be in the range of ~1/10.
この構成によれば、吸引ポンプ４が吸引動作を
していると、セル上部の空間が負圧になるので、
ライン１０を通じてエヤーがセル上部の空間９に
導入される。而して、このエヤーは水分をあまり
含んでいないため、水分濃度の高いセル上部空間
にそれが導入されると、希釈によりその空間の水
分濃度を低くする。その結果、セル上部内壁には
結露が生じにくく、また吸収液の飛散等によつて
水滴が生じたとしても成長、落下する前に乾燥、
除去され、指示上昇の発生を防止することができ
る。 According to this configuration, when the suction pump 4 performs suction operation, the space above the cell becomes negative pressure, so that
Air is introduced into the space 9 above the cell through a line 10. Since this air does not contain much moisture, when it is introduced into the upper space of the cell where the moisture concentration is high, it lowers the moisture concentration in that space by dilution. As a result, condensation is less likely to form on the inner wall of the upper part of the cell, and even if water droplets are formed due to scattering of the absorption liquid, they dry out before they grow and fall.
can be removed and the occurrence of an indication rise can be prevented.
〈考案の効果〉
以上説明したように、本考案によれば、結露し
やすい吸収セルの上部空間内に水分濃度の低いエ
ヤーを導入するといつた極めて簡単な構成によつ
て、従来技術では避けることができなかつた結露
の発生を未然に防止することができる。そして、
飛散などによつて生じた水滴を、それが成長また
は落下する前に乾燥して除去し、これによつて、
指示上昇の発生を効果的に防止することができる
ようになつたのである。<Effects of the invention> As explained above, according to the present invention, air with a low moisture concentration is introduced into the upper space of the absorption cell where dew condensation is likely to occur. It is possible to prevent the occurrence of dew condensation that would otherwise occur. and,
Dry and remove water droplets generated by splashing etc. before they grow or fall, thereby
It has now become possible to effectively prevent the occurrence of an increase in the indication.
第１図は従来のガス分析計の構成を示す図、第
２図は本考案の一実施例としてのガス分析計の構
成を示す図である。
３……吸収セル、４……吸引ポンプ、５……バ
イパスフイルタ、６……レギユレータ、７……吸
収液、９……上部空間、１０……分岐ライン、１
１……キヤピラリー、Ａ……排出ライン。
FIG. 1 is a diagram showing the configuration of a conventional gas analyzer, and FIG. 2 is a diagram showing the configuration of a gas analyzer as an embodiment of the present invention. 3... Absorption cell, 4... Suction pump, 5... Bypass filter, 6... Regulator, 7... Absorption liquid, 9... Upper space, 10... Branch line, 1
1... Capillary, A... Discharge line.
Claims (1)
吸引ポンプを設けると共に、前記排出ラインの吸
収セルと吸引ポンプとの間の点にレギユレータを
介してバイパスフイルタを接続し、前記吸引ポン
プの吸引動作によつて試料ガスを吸収セル内に導
入し、吸収セル内に収容された吸収液に試料ガス
を吸収させて、吸収液の変化から試料ガスの分析
を行うガス分析計において、一端が前記レギユレ
ータとバイパスフイルタとの間に接続され、他端
が前記吸収セルの上部空間に接続されるようにし
て分岐ラインを設けると共に、この分岐ラインに
キヤピラリーを介装し、前記バイパスフイルタお
よびキヤピラリーを介して前記吸収セルの上部空
間内に、水分濃度を低いエヤーを導入するように
構成したことを特徴とするガス分析計。 A suction pump is provided in a discharge line connected to the upper space of the absorption cell, and a bypass filter is connected to a point of the discharge line between the absorption cell and the suction pump via a regulator, so that the suction operation of the suction pump is controlled. Therefore, in a gas analyzer that introduces a sample gas into an absorption cell, causes the absorption liquid contained in the absorption cell to absorb the sample gas, and analyzes the sample gas from changes in the absorption liquid, one end is connected to the regulator. A branch line is provided such that the branch line is connected to the bypass filter and the other end is connected to the upper space of the absorption cell, and a capillary is interposed in the branch line, and the branch line is connected to the bypass filter and the capillary. A gas analyzer characterized in that it is configured to introduce air with a low moisture concentration into the upper space of an absorption cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6007584U JPS60173064U (en) | 1984-04-24 | 1984-04-24 | gas analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6007584U JPS60173064U (en) | 1984-04-24 | 1984-04-24 | gas analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60173064U JPS60173064U (en) | 1985-11-16 |
| JPH049573Y2 true JPH049573Y2 (en) | 1992-03-10 |
Family
ID=30587089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6007584U Granted JPS60173064U (en) | 1984-04-24 | 1984-04-24 | gas analyzer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60173064U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5056993A (en) * | 1973-09-17 | 1975-05-19 |
-
1984
- 1984-04-24 JP JP6007584U patent/JPS60173064U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5056993A (en) * | 1973-09-17 | 1975-05-19 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60173064U (en) | 1985-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106124443B (en) | A kind of marine exhaust emission analysis pretreatment system | |
| JPS62222140A (en) | Continuous gas and vapor monitor | |
| JPH049573Y2 (en) | ||
| CA2039239A1 (en) | Device and process for the continuous measurement of the ammonia concentration in gases in the p.p.m. range | |
| US3557869A (en) | Condensate draining device | |
| Hochheiser | Methods of measuring and monitoring atmospheric sulfur dioxide | |
| Bisgaard et al. | A method for personal sampling and analysis of nanogram amounts of formaldehyde in air | |
| CN208313750U (en) | The measurement device of impurity content in gas | |
| CN111426646A (en) | Pretreatment method for detecting sulfur trioxide in discharged flue gas | |
| US3367747A (en) | Apparatus for continuously measuring the concentration of a gas-mixture component | |
| CN103245545B (en) | H in wet flue gas 2sO 4the pre-treatment of acid mist on-line monitoring and analytical equipment and method | |
| CN212692914U (en) | Sensor protection structure and electronic equipment comprising same | |
| JPH07113605B2 (en) | Gas analyzer | |
| CN114518791A (en) | Cooling system of server | |
| CN217521108U (en) | Tail-discharged hydrogen concentration measuring system | |
| JPH02115746A (en) | Iodine measuring instrument | |
| SU914996A1 (en) | Electrochemical device for measuring hydrogen sulphide concentration | |
| CN111579318B (en) | Sampling device and sampling method applied to determination of ammonium nitrogen isotope | |
| JPS59783B2 (en) | Method and apparatus for analyzing easily volatile components in liquid | |
| SU756281A1 (en) | Condensation-type psychrometer | |
| CN220207222U (en) | VOCs enrichment device capable of removing impurities | |
| CN209662989U (en) | A kind of film changeable hydrophobicity device for drying and filtering for gas analysis | |
| CN209570426U (en) | A kind of gas analysis pretreatment unit and gas analysis sample clean system | |
| JPS6344185B2 (en) | ||
| JPH0433992Y2 (en) |