JP3145213U - Interfering gas removal filter for gas detector - Google Patents
Interfering gas removal filter for gas detector Download PDFInfo
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- JP3145213U JP3145213U JP2008004937U JP2008004937U JP3145213U JP 3145213 U JP3145213 U JP 3145213U JP 2008004937 U JP2008004937 U JP 2008004937U JP 2008004937 U JP2008004937 U JP 2008004937U JP 3145213 U JP3145213 U JP 3145213U
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- gas
- silver
- interfering
- removal filter
- sheet
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- 230000002452 interceptive effect Effects 0.000 title claims abstract description 11
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims abstract description 18
- RBWNDBNSJFCLBZ-UHFFFAOYSA-N 7-methyl-5,6,7,8-tetrahydro-3h-[1]benzothiolo[2,3-d]pyrimidine-4-thione Chemical compound N1=CNC(=S)C2=C1SC1=C2CCC(C)C1 RBWNDBNSJFCLBZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003365 glass fiber Substances 0.000 claims abstract description 10
- 229910001961 silver nitrate Inorganic materials 0.000 claims abstract description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 230000035699 permeability Effects 0.000 claims abstract description 8
- 239000004332 silver Substances 0.000 claims abstract description 8
- 229910052709 silver Inorganic materials 0.000 claims abstract description 8
- JOXIMZWYDAKGHI-UHFFFAOYSA-M toluene-4-sulfonate Chemical compound CC1=CC=C(S([O-])(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-M 0.000 claims abstract description 7
- 239000007789 gas Substances 0.000 abstract description 16
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 7
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 7
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 2
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 24
- 239000000463 material Substances 0.000 description 3
- 150000005846 sugar alcohols Polymers 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003378 silver Chemical class 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
Images
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
【課題】高い相対湿度の環境下でも検出器出力の低下をきたすことなく妨害ガスである硫化水素を除去できるフィルタを提供する。
【解決手段】ガラス繊維１ａからなるガス通気性を備えたシート状の担体１に、過塩素酸銀、硝酸銀、及びパラトルエンスルフォン酸銀の少なくとも一種を保持させる。過塩素酸銀以外に吸湿性を有する物質が存在しないため、湿度の影響を最小限に抑制でき、サンプルガスに含まれている妨害ガスが銀塩に選択的に反応して確実に除去することができる。
【選択図】図１A filter capable of removing hydrogen sulfide, which is an interfering gas, without causing a decrease in detector output even in an environment with high relative humidity.
At least one of silver perchlorate, silver nitrate, and silver paratoluenesulfonate is held on a sheet-like carrier 1 made of glass fiber 1a and having gas permeability. Since there is no hygroscopic substance other than silver perchlorate, the influence of humidity can be minimized, and the interfering gas contained in the sample gas reacts selectively with the silver salt and is reliably removed. Can do.
[Selection] Figure 1
Description
本考案は、ガス検出器に流入するサンプルガスから硫化水素等のガスを除去するためのフィルターに関する。 The present invention relates to a filter for removing a gas such as hydrogen sulfide from a sample gas flowing into a gas detector.
硫化水素が高い濃度で存在する状況下で定電位電解型電気化学式センサーを使用すると、硫化水素の干渉の影響が大きく、目的ガスの測定ができない。 このような硫化水素等の干渉の影響を抑えてＳＯ2 や、ＣＯを正確に測定するために特許文献１に見られるようなフィルタをセンサーのガス取り入れ口に設けることが行われている。
If a potentiostatic electrochemical sensor is used in a situation where hydrogen sulfide is present at a high concentration, the influence of hydrogen sulfide interference is large, and the target gas cannot be measured. In order to suppress the influence of interference such as hydrogen sulfide and accurately measure SO2 and CO, a filter as shown in
しかしながら、ガス通気性を備え、かつ多価アルコールの吸収が可能なシート状担体に、多価アルコールと、多価アルコールに溶解させた銀塩を保持
させて構成されているため、図3に示したように相対湿度が５０％を超える環境下では吸湿により出力が急激に低下するという不都合がある。
なお、図3は、従来のフィルタを5種類用意してフィルタを取り付けたガス検出器の出力変化と相対湿度との関係を調査したものである。
FIG. 3 is an investigation of the relationship between the change in output of a gas detector equipped with five types of conventional filters and attached filters, and the relative humidity.
本考案はこのような問題に鑑みてなされたものであって、その目的とするところは、高い相対湿度の環境下でも検出器出力の低下をきたすことなく妨害ガスである硫化水素を除去できるフィルタを提供することである。 The present invention has been made in view of such problems, and the object of the present invention is a filter that can remove hydrogen sulfide, which is an interfering gas, without causing a decrease in detector output even in an environment of high relative humidity. Is to provide.
このような課題を解消するため本考案においてはガス透過性を有する非吸湿性のシートに、過塩素酸銀、硝酸銀、及びパラトルエンスルフォン酸銀の少なくとも一種を保持させる。 In order to solve such a problem, in the present invention, at least one of silver perchlorate, silver nitrate, and silver paratoluenesulfonate is held in a non-hygroscopic sheet having gas permeability.
本考案によれば過塩素酸銀以外に吸湿性を有する物質が存在しないため、湿度の影響を最小限に抑制でき、サンプルガスに含まれている妨害ガスが銀塩に選択的に反応して確実に除去することができる。 According to the present invention, since there is no hygroscopic substance other than silver perchlorate, the influence of humidity can be minimized, and the interfering gas contained in the sample gas reacts selectively with the silver salt. It can be removed reliably.
そこで以下に実施例に基づいて説明する。
図1は本考案の一実施例を示すものであって、通気性を持ち、かつ可及的に吸湿性が低いガラス繊維１ａからシート等の担体１に、過塩素酸銀をメタノールに溶解させた試薬を含浸させ、ついでメタノールを揮散させ、担体1に過塩素酸銀粒子2を添着して構成されている。
Therefore, the following description is based on examples.
FIG. 1 shows an embodiment of the present invention, in which silver perchlorate is dissolved in methanol from a glass fiber 1a having air permeability and low moisture absorption as much as possible to a
［実施例１］
過塩素酸銀を5乃至15グラムｗ／ｖパ−セントをメタノ−ルに溶解した調製液にガラス繊維１ａからなる担体1を浸漬させ、引上げてから担体1に含まれているメタノ−ルを室温で蒸発させる。これにより１平方メ−トル当たり過塩素酸銀3.25乃至9.75グラムを保持したフィルター材を得ることができる。
[Example 1]
The
［実施例２］
硝酸銀を2.5乃至5ｗ／ｖパーセントをメタノールに溶解させた調製液にガラス繊維１ａからなる担体1を浸漬して、メタノールを室温で蒸発させる。これにより１平方メートル当たり硝酸銀1.5乃至3.0グラムを担持したフィルター材を得ることができる。
[Example 2]
The
［実施例３］
パラトルエンスルフォン酸銀を2.5乃至5ｗ／ｖパーセントをメタノールに溶解した調製液にガラス繊維１ａから担体1を浸漬させ、メタノールを蒸発させることにより、１平方メートル当たりパラトルエンスルフォン酸銀を1.5乃至3.0担持したフィルター材を得ることができる。
[Example 3]
Immerse the
図1は、本考案のフィルタを5種類用意して湿度特性、つまりこのフィルタを取り付けたガス検出器の出力変化と相対湿度との関係を示すものであって相対湿度85％程度でも出力の低下は見られない。 Figure 1 shows the humidity characteristics of five types of filters of the present invention, that is, the relationship between the change in the output of a gas detector equipped with this filter and the relative humidity. The output drops even at a relative humidity of about 85%. Is not seen.
なお、上述の実施例においては過塩素酸銀、硝酸銀、及びパラトルエンスルフォン酸銀などの銀塩を単独で含浸させているが、これら銀塩を複数種類組み合わせて使用しても同様の作用を奏することは明らかである。 In the above-described embodiments, silver salts such as silver perchlorate, silver nitrate, and silver paratoluenesulfonate are impregnated alone, but the same effect can be obtained even when these silver salts are used in combination. It is clear to play.
また、担体が保持するべき上記各銀塩の量は、少なければ硫化水素の吸収量が少なく、また多ければフィルターの通気性が低下したり、また析出による不都合が生じるので、上記範囲が最適であることを確認した。 In addition, the amount of each silver salt to be held by the support is small if the amount of hydrogen sulfide absorbed is small, and if it is large, the air permeability of the filter is lowered, and inconvenience due to precipitation occurs, so the above range is optimal. I confirmed that there was.
1 非吸湿性シートからなる担体 1a ガラス繊維 2 過塩酸銀の粒子
1 Non-hygroscopic sheet carrier 1a
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008004937U JP3145213U (en) | 2008-07-17 | 2008-07-17 | Interfering gas removal filter for gas detector |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008004937U JP3145213U (en) | 2008-07-17 | 2008-07-17 | Interfering gas removal filter for gas detector |
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| Publication Number | Publication Date |
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| JP3145213U true JP3145213U (en) | 2008-10-02 |
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| JP2008004937U Expired - Lifetime JP3145213U (en) | 2008-07-17 | 2008-07-17 | Interfering gas removal filter for gas detector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180130486A (en) | 2016-04-05 | 2018-12-07 | 라이온 가부시키가이샤 | Removing method, hair removal device, toothbrush manufacturing method, and toothbrush manufacturing device |
-
2008
- 2008-07-17 JP JP2008004937U patent/JP3145213U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20180130486A (en) | 2016-04-05 | 2018-12-07 | 라이온 가부시키가이샤 | Removing method, hair removal device, toothbrush manufacturing method, and toothbrush manufacturing device |
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