JPS62231149A - Method and instrument for measuring moisture concentration in exhaust gas - Google Patents
Method and instrument for measuring moisture concentration in exhaust gasInfo
- Publication number
- JPS62231149A JPS62231149A JP61072436A JP7243686A JPS62231149A JP S62231149 A JPS62231149 A JP S62231149A JP 61072436 A JP61072436 A JP 61072436A JP 7243686 A JP7243686 A JP 7243686A JP S62231149 A JPS62231149 A JP S62231149A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- oxygen concentration
- gas
- moisture
- measuring
- 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
- 238000000034 method Methods 0.000 title claims description 15
- 239000007789 gas Substances 0.000 claims abstract description 136
- 239000001301 oxygen Substances 0.000 claims abstract description 92
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 92
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 91
- 238000007791 dehumidification Methods 0.000 claims abstract description 8
- 238000005070 sampling Methods 0.000 claims description 14
- 238000004364 calculation method Methods 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 abstract description 17
- 238000005259 measurement Methods 0.000 description 8
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 6
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000012883 sequential measurement Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明は、ごみ焼却炉、火力発電所等の排ガス中の水
分濃度を測定する水分４度測定方法及びその装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a moisture 4 degree measuring method and apparatus for measuring the moisture concentration in exhaust gas from garbage incinerators, thermal power plants, etc.
従来、ごみ焼却炉等では、塩化水素濃度の排ガス規制の
ためにイオン電極方式の塩化水素濃度計を設置して塩化
水素を連続分析している。このイオン電極方式の塩化水
素濃度計は、塩化水素を吸収液に吸収させて液中のイオ
ン濃度を測定する方法である。更に、ガス中の水分を測
定するものとして、湿度計すなわち湿度センサーがある
。Conventionally, in garbage incinerators and the like, in order to control the concentration of hydrogen chloride in exhaust gas, hydrogen chloride concentration meters using ion electrodes have been installed to continuously analyze hydrogen chloride. This ion electrode type hydrogen chloride concentration meter is a method of measuring the ion concentration in the liquid by absorbing hydrogen chloride into the absorption liquid. Furthermore, there is a hygrometer, that is, a humidity sensor, which measures moisture in gas.
また、排ガス中の水分濃度を測定する水分濃度測定方法
としては、ＪＩＳ Ｚ ８８０８ （排ガス中のダスト
濃度の測定方法〕の中に、手分析の方法すなわち逐次測
定する方法が規定されている。Furthermore, as a moisture concentration measuring method for measuring the moisture concentration in exhaust gas, a manual analysis method, that is, a sequential measurement method is specified in JIS Z 8808 (Method for measuring dust concentration in exhaust gas).
しかしながら、上記のイオン電極方式の塩化水素濃度計
については、ガス中に水分が存在すると吸収液を水で薄
めることになるので、それによって得られた測定値はガ
ス中の水分濃度で補正する必要がある。However, with the ion electrode type hydrogen chloride concentration meter mentioned above, if moisture is present in the gas, the absorption liquid will be diluted with water, so the measured values obtained must be corrected by the moisture concentration in the gas. There is.
また、前記湿度センサーは、ガス温度が通常使用時でも
最高で １００℃ までしか使用できない、ごみ焼却炉
等の排ガスの温度は、煙突等の排気管においても 約り
００℃〜約３００℃ もあり、炉の出口については 約
９００℃ 程度の高温となっており、約り００℃〜約９
００℃ の高温状態の水分を測定することは前記湿度計
では全く不可能である。In addition, the humidity sensor can only be used when the gas temperature reaches a maximum of 100°C during normal use, and the temperature of exhaust gas from garbage incinerators, etc., even in exhaust pipes such as chimneys, can range from about 00°C to about 300°C. The temperature at the exit of the furnace is about 900℃, and the temperature ranges from about 00℃ to about 9℃.
It is completely impossible for the above hygrometer to measure moisture at a high temperature of 00°C.
また、上記のように、ガス中の水分濃度測定方法として
規定されている ＪＩＳ Ｚ ８８０８ （排ガス中の
ダストｔｗ度の測定方法〕中の手分析の方法については
、逐次測定する方法であって問題を有している。In addition, as mentioned above, the manual analysis method in JIS Z 8808 (Method for measuring dust tw degree in exhaust gas), which is specified as a method for measuring moisture concentration in gas, is a sequential measurement method and has problems. have.
この発明の目的は、上記の問題点を解消することであり
、高温の排ガス中の水分濃度を高精度に且つ連続して測
定することができる水分濃度測定方法及びその装置を提
供することである。An object of the present invention is to solve the above-mentioned problems, and to provide a method and apparatus for measuring moisture concentration that can continuously and accurately measure the moisture concentration in high-temperature exhaust gas. .
この発明は、上記の問題点を解消し、上記の目的を達成
するために、次のように構成されている。In order to solve the above problems and achieve the above objects, the present invention is configured as follows.
すなわち、この出願の１番目の発明は、排ガス中の湿ガ
ス基準の酸素濃度及び除湿後の乾ガス基準の酸素濃度を
測定し、これらの測定値を演算することによって排ガス
中の湿ガス基準の水分濃度及び／又は乾ガス基準の水分
濃度を測定することを特徴とする排ガス中の水分濃度測
定方法に関する。That is, the first invention of this application measures the oxygen concentration based on wet gas in exhaust gas and the oxygen concentration based on dry gas after dehumidification, and calculates the wet gas based oxygen concentration in exhaust gas by calculating these measured values. The present invention relates to a method for measuring moisture concentration in exhaust gas, which is characterized by measuring moisture concentration and/or moisture concentration on a dry gas basis.
また、この出願の２番目の発明は、排ガス中の湿ガス基
準の酸素濃度を測定する第１酸素濃度計及び除湿器によ
って除湿した後の乾ガス基準の酸素濃度を測定する第２
酸素濃度計を備え、前記第１酸素濃度計及び前記第２酸
素濃度計の測定値を受けて演算を行う演算器を備えてい
ることを特徴とする排ガス中の水分濃度測定装置に関し
、更に、具体的に説明すると、前記第１酸素濃度計は前
記排ガスの流れ中に設置され、また、前記除湿器はガス
採取器から採取された排ガスを除湿するように構成され
ているか、又は、前記第１酸素濃度計及び前記除湿器は
排ガス採取器から採取された排ガスを加熱する加熱導管
の下流に設置されていることを特徴とする排ガス中の水
分濃度測定装置に関する。The second invention of this application also includes a first oxygen concentration meter that measures the oxygen concentration on a wet gas basis in exhaust gas, and a second oxygen concentration meter that measures the oxygen concentration on a dry gas basis after dehumidifying with a dehumidifier.
Regarding an apparatus for measuring moisture concentration in exhaust gas, further comprising: an oxygen concentration meter, and a computing unit that receives measured values from the first oxygen concentration meter and the second oxygen concentration meter and performs calculations; Specifically, the first oxygen concentration meter is installed in the flow of the exhaust gas, and the dehumidifier is configured to dehumidify the exhaust gas collected from the gas sampling device, or the first oxygen concentration meter is configured to dehumidify the exhaust gas collected from the gas sampling device. 1. The present invention relates to an apparatus for measuring moisture concentration in exhaust gas, characterized in that the oxygen concentration meter and the dehumidifier are installed downstream of a heating conduit that heats exhaust gas collected from an exhaust gas sampler.
そこで、排ガス中の酸素濃度について、湿ガス基準の酸
素濃度と除湿後の乾ガス基準の酸素濃度の２種類を測定
し、これらの測定値を演算器によって演算することによ
り排ガス中の水分濃度を求める演算方法について詳述す
る。Therefore, we measure two types of oxygen concentration in exhaust gas: the oxygen concentration based on wet gas and the oxygen concentration based on dry gas after dehumidification, and calculate the moisture concentration in exhaust gas by calculating these measured values with a calculator. The calculation method used will be explained in detail.
湿ガス基準の酸素濃度をＸＩ（％）、乾ガス基準の酸素
濃度をＸｚ（％）、湿ガス基準の水分濃度をＨ，（％）
、乾ガス基準の水分濃度をＨｚ（％）、乾ガス量をＶ
（Ｎｎｌ’） 、及び排ガス中の酸素量をＷ（Ｎｎ（）
とする。ただし、ガス濃度はすべて容積％である。The oxygen concentration based on wet gas is XI (%), the oxygen concentration based on dry gas is Xz (%), and the moisture concentration based on wet gas is H, (%).
, dry gas standard moisture concentration in Hz (%), dry gas amount in V
(Nnl'), and the amount of oxygen in the exhaust gas is W(Nn()
shall be. However, all gas concentrations are in volume %.
乾ガス基準の酸素濃度は、
１００ （Ｗ／ Ｖ） ＝ Ｘｚ −’−”’−”
−・−・・−（１）となる。The oxygen concentration based on dry gas is 100 (W/V) = Xz −'-”'-”
−・−・・−(1).
湿ガス基準の酸素濃度は、
□・１００
Ｖ＋＜Ｈｚ／１００） ・Ｖ
Ｖ １＋（Ｈ！／１ｏｏ）
二 ＸＩ −’−”−’−・−・−・
・・−・−（２）となる。The oxygen concentration based on wet gas is: □・100 V+<Hz/100) ・V V 1+(H!/1oo) 2 XI −'−”−'−・−・−・
...--(2).
（１）式を（２）式に代入すると、
よって、
１ ＋ （Ｈｚ／ｌ ＯＯ） ＝ Ｘｚ／Ｘ＋−−−
・−・・・・（４）これより乾ガス基準の水分濃度Ｈ２
が、ｔｉｚ＝ｔｏｏ （（Ｘｔ／Ｘ、）−１）・・・（
５）と求まる。Substituting equation (1) into equation (2), we get: 1 + (Hz/l OO) = Xz/X+---
・・・・・・(4) From this, the moisture concentration H2 based on dry gas
But, tiz=too ((Xt/X,)-1)...(
5).
湿ガス基準の水分濃度は、
Ｖ＋Ｖ （＋４２／１００）
となり、（６）式に（５）式を代入すると、湿ガス基準
の水分濃度Ｈ，が、
−１００（Ｘｉ／Ｘ＋ ）
＝ｌ ＯＯ（１（Ｘ＋／Ｘｚ）） ”’−”−・−（７
）と求まる。The moisture concentration based on wet gas is V+V (+42/100), and by substituting equation (5) into equation (6), the moisture concentration H, based on wet gas is -100(Xi/X+) =l OO( 1(X+/Xz)) ”'-”-・-(7
) is found.
故に、（５）式及び（７）式により、排ガス中の水分濃
度は、湿ガス基準の酸素濃度と乾ガス基準の酸素濃度だ
けから求めることができる。Therefore, according to equations (5) and (7), the moisture concentration in the exhaust gas can be determined only from the oxygen concentration on a wet gas basis and the oxygen concentration on a dry gas basis.
この発明による排ガス中の水分濃度測定方法及びその装
置は、上記のように構成されており、次のように作用す
る。The method and device for measuring moisture concentration in exhaust gas according to the present invention are constructed as described above and operate as follows.
まず、この出願の１番目の発明である排ガス中の水分濃
度測定方法は、排ガス中の湿ガス基準の酸素濃度及び除
湿後の乾ガス基準の酸素濃度を測定し、それら測定値を
演算することによって排ガス中の湿ガス基準の水分濃度
及び／又は乾ガス基準の水分濃度を測定するように構成
したので、排ガス中の酸素濃度の測定値のみによって、
ＩＪＰガス中の水分濃度を間接的に測定することができ
、しかも酸素濃度の測定値は再現精度が 約±１％以下
という極めて高精度のものであるので、水分濃度測定値
も極めて高精度のものとなる。First, the method for measuring moisture concentration in exhaust gas, which is the first invention of this application, involves measuring the oxygen concentration on a wet gas basis in the exhaust gas and the oxygen concentration on a dry gas basis after dehumidification, and calculating these measured values. Since it is configured to measure the moisture concentration based on wet gas and/or the moisture concentration based on dry gas in exhaust gas, it is possible to
The moisture concentration in IJP gas can be measured indirectly, and the oxygen concentration measurement has extremely high precision with a reproducibility of approximately ±1% or less, so the moisture concentration measurement can also be performed with extremely high precision. Become something.
また、この出願の２番目の発明である排ガス中の水分濃
度測定装置は、排ガス中の湿ガス基準の酸素濃度を測定
する第１酸素濃度計及び除湿器によって除湿した後の乾
ガス基準の酸素濃度を測定する第２酸素濃度計を備え、
前記第１酸素濃度計及び前記第２酸素濃度計の測定値を
受けて演算を行う演算器を備えたものであるので、高温
度では使用することができない湿度計を使用する必要が
なく、高温度でも使用可能で且つ再現精度が極めて高精
度である酸素濃度計のみの使用で水分濃度測定値を間接
的に測定することができ、しかも得られた水分濃度測定
値は極めて高精度のものとなる。In addition, the second invention of this application, a device for measuring moisture concentration in exhaust gas, includes a first oxygen concentration meter that measures the oxygen concentration on a wet gas basis in the exhaust gas, and a first oxygen concentration meter that measures the oxygen concentration on a dry gas basis after being dehumidified by a dehumidifier. Equipped with a second oxygen concentration meter that measures the concentration,
Since it is equipped with a calculator that performs calculations based on the measured values of the first oxygen concentration meter and the second oxygen concentration meter, there is no need to use a hygrometer that cannot be used at high temperatures, and Moisture concentration measurements can be indirectly measured using only an oxygen concentration meter that can be used at any temperature and has extremely high reproducibility, and the obtained moisture concentration measurements are extremely accurate. Become.
（実施例〕
以下、この出願の２番目の発明による排ガス中の水分濃
度測定装置の諸実施例を、第１図及び第２図を参照して
説明する。(Examples) Hereinafter, various examples of the apparatus for measuring moisture concentration in exhaust gas according to the second invention of this application will be described with reference to FIGS. 1 and 2.
先ず、第１図を参照して２番目の発明による排ガス中の
水分濃度測定装置の一実施例を説明する。First, an embodiment of the apparatus for measuring moisture concentration in exhaust gas according to the second invention will be described with reference to FIG.
第１図において、煙道１には、約り００℃〜約９００℃
の排ガスが流れている。ジルコニア式酸素濃度計２は
、湿ガス基準の酸素濃度を測定するために、排ガスをサ
ンプリングすることなく、排ガスすなわち被測定排ガス
中にその検出部を挿入するタイプのものである。排ガス
をサンプリングするための採取管３を通じて、煙道１が
らエアポンプ５によって排ガスを吸引する。電子除湿器
４は、排ガス中の水分を除去するためのものである。酸
素濃度計６は乾ガス基準の酸素濃度を測定するためのも
のであり、磁気式酸素濃度計とジルコニア式酸素濃度計
のうちどちらを使用してもよいものである。演算器７は
、ジルコニア式酸素濃度計２、及び磁気式又はジルコニ
ア式酸素濃度計６からのそれぞれの測定値の信号を受け
て演算し、その演算結果を外部の指示計や記録計に出方
するものである。In Figure 1, flue 1 has a temperature of about 00℃ to about 900℃.
exhaust gas is flowing. The zirconia oxygen concentration meter 2 is of a type in which a detection section is inserted into the exhaust gas, that is, the exhaust gas to be measured, without sampling the exhaust gas, in order to measure the oxygen concentration based on wet gas. The exhaust gas is sucked from the flue 1 by an air pump 5 through a sampling pipe 3 for sampling the exhaust gas. The electronic dehumidifier 4 is for removing moisture from exhaust gas. The oxygen concentration meter 6 is for measuring the oxygen concentration on a dry gas basis, and either a magnetic oxygen concentration meter or a zirconia oxygen concentration meter may be used. The calculator 7 receives and calculates the measured value signals from the zirconia oxygen concentration meter 2 and the magnetic or zirconia oxygen concentration meter 6, and outputs the calculation results to an external indicator or recorder. It is something to do.
ジルコニア式酸素濃度計２は、除湿していない排ガス中
の酸素濃度を測定するもので、湿ガス基準の酸素濃度を
測定することができる。煙道１の排ガス中にその検出部
を直接接触させるタイプのジルコニア式酸素濃度計２は
、排ガスの温度が約り℃〜約１４００℃ で使用可能な
ものであり、約り００℃〜約９００℃ の排ガスに対し
て使用することについては、全く問題が生じることはな
い。酸素温度計６は、除湿後の排ガス中の酸素濃度を測
定するもので、乾ガス基準の酸素濃度を測定することが
できる。酸素濃度計２と酸素濃度計６の測定値すなわち
出力信号を基にして、上記（５）式及び上記（７）式の
計算を演算器７により行って、排ガス中の水分濃度を出
方すなわち測定することができる。また、ガスサンプリ
ング管内すなわちガス採取管から酸素濃度計６までの間
のガスの滞留時間（θ時間とする）があり、酸素濃度計
６は酸素濃度計２よりも θ時間 遅れて分析すること
になるので、演算器７に記憶素子を用いて Ｌ時間 の
酸素濃度計２の出力に対しｔ＋θ時間 の酸素濃度計６
の出力を用いて計算させた方が、より効果がある。The zirconia oxygen concentration meter 2 measures the oxygen concentration in exhaust gas that has not been dehumidified, and can measure the oxygen concentration on a wet gas basis. The zirconia oxygen concentration meter 2, which has its detection part in direct contact with the exhaust gas in the flue 1, can be used when the temperature of the exhaust gas is between about 0°C and about 1400°C, and between about 00°C and about 900°C. There are no problems at all when using it for exhaust gas at ℃. The oxygen thermometer 6 measures the oxygen concentration in the exhaust gas after dehumidification, and can measure the oxygen concentration on a dry gas basis. Based on the measured values, that is, the output signals of the oxygen concentration meter 2 and the oxygen concentration meter 6, the above equations (5) and (7) are calculated by the calculator 7, and the moisture concentration in the exhaust gas is calculated by can be measured. In addition, there is a residence time (referred to as θ time) of the gas in the gas sampling pipe, that is, from the gas sampling pipe to the oxygen concentration meter 6, and the oxygen concentration meter 6 is analyzed θ hours later than the oxygen concentration meter 2. Therefore, using a memory element in the computing unit 7, the output of the oxygen concentration meter 6 at time t+θ is calculated based on the output of the oxygen concentration meter 2 at time L.
It is more effective to calculate using the output of
次に、２番目の発明による排ガス中の水分濃度測定装置
の別の実施例を第２図を参照して説明する。Next, another embodiment of the apparatus for measuring moisture concentration in exhaust gas according to the second invention will be described with reference to FIG.
第２図において、煙道１には、排ガスをサンプリングす
るための採取管３が設置されており、その採取管３を通
じて、煙道１からエアポンプ５によって排ガスは吸引さ
れる。２台の酸素濃度計の分析時間のズレを小さくする
ために、加熱導管８を介して排ガスをサンプリングし、
電子除湿器４の直前にジルコニア式酸素濃度計２を設置
したものである。この排ガス中の水分濃度測定装置は、
排ガスのサンプリング地点と分析計設置場所が離れてい
る場合に適しているものである。In FIG. 2, a sampling pipe 3 for sampling exhaust gas is installed in the flue 1, and the exhaust gas is sucked from the flue 1 through the sampling pipe 3 by an air pump 5. In order to reduce the difference in analysis time between the two oxygen concentration meters, the exhaust gas is sampled via the heating conduit 8.
A zirconia oxygen concentration meter 2 is installed immediately before an electronic dehumidifier 4. This device for measuring moisture concentration in exhaust gas is
This is suitable when the exhaust gas sampling point and the analyzer installation location are far apart.
通常、酸素濃度計は、再現精度が ±１％ 以下と非常
に高精度であり、酸素濃度計のみを使用して水分濃度測
定を行うことにより、水分濃度測定値も高精度で求める
ことができる。Oxygen concentration meters usually have extremely high precision with a repeatability of ±1% or less, and by measuring moisture concentration using only an oxygen concentration meter, the measured value of moisture concentration can also be determined with high precision. .
まず、この出願の１番目の発明である排ガス中の水分濃
度測定方法、排ガス中の湿ガス基準の酸素濃度及び除湿
後の乾ガス基準の酸素濃度を測定し、それら測定値を演
算することによって排ガス中の乾ガス基準の水分濃度及
び／又は湿ガス基準の水分濃度を測定するように構成し
たので、排ガス中の酸素濃度の測定値のみによって、排
ガス中の水分濃度を間接的に測定することができ、しか
も酸素濃度の測定値は再現精度が約±１％以下という極
めて高精度のものであるので、水分濃度測定値も極めて
高精度のものとなる。First, the method for measuring moisture concentration in exhaust gas, which is the first invention of this application, measures the oxygen concentration on a wet gas basis in the exhaust gas and the oxygen concentration on a dry gas basis after dehumidification, and calculates the measured values. Since the structure is configured to measure the moisture concentration in exhaust gas on a dry gas basis and/or the moisture concentration on a wet gas basis, the moisture concentration in the exhaust gas can be indirectly measured only by the measured value of the oxygen concentration in the exhaust gas. Moreover, since the measured value of oxygen concentration has extremely high precision with a reproducibility of about ±1% or less, the measured value of water concentration also has extremely high precision.
また、この出願の２番目の発明である排ガス中の水分濃
度測定値には、排ガス中の湿ガス基準の酸素濃度を測定
する第１酸素濃度計及び除湿器によって除湿した後の乾
ガス基準の酸素濃度を測定する第２酸素濃度計を備え、
前記第１酸素濃度計及び前記第２酸素濃度計の測定値を
受けて演算を行う演算器を備えたものであるので、高温
度では使用することができない湿度計を使用する必要が
なく、高温度でも使用可能で且つ再現精度が極めて高精
度である酸素濃度計のみの使用で水分濃度測定値を間接
的に測定することができ、しかも得られた水分濃度測定
値は極めて高精度のものである。In addition, the second invention of this application, the moisture concentration measurement value in exhaust gas, includes a first oxygen concentration meter that measures the oxygen concentration in exhaust gas based on wet gas, and a dry gas standard after dehumidifying with a dehumidifier. Equipped with a second oxygen concentration meter that measures oxygen concentration,
Since it is equipped with a calculator that performs calculations based on the measured values of the first oxygen concentration meter and the second oxygen concentration meter, there is no need to use a hygrometer that cannot be used at high temperatures, and Moisture concentration measurements can be indirectly measured using only an oxygen concentration meter that can be used at any temperature and has extremely high reproducibility, and the obtained moisture concentration measurements are extremely accurate. be.
更に、この発明の排ガス中の水分濃度測定によれば、−
Ｃに環境公害分析に使用されている酸素濃度計を使用し
ているものであり、約り００℃〜約９００℃ の高温排
ガス中の水分濃度を高精度に且つ連続して測定すること
ができる等、種々の効果を奏するものである。Furthermore, according to the measurement of moisture concentration in exhaust gas according to the present invention, -
It uses an oxygen concentration meter used for environmental pollution analysis in C, and can measure the moisture concentration in high-temperature exhaust gas from about 00℃ to about 900℃ with high accuracy and continuously. It has various effects such as.
第１図はこの出願の２番目の発明による排ガス中の水分
濃度を測定する水分濃度測定装置の一実施例を示す説明
図、及び第２図は２番目の発明による排ガス中の水分濃
度を測定する水分濃度測定装置の別の実施例を示す説明
図ある。
１− ・煙道、２−・−・ジルコニア式酸素濃度計、３
− ガス採取管、４−・・−電子除湿器、５−・・・−
エアポンプ、６−・・・・−酸素濃度計、？−−−−演
算器、８−−−−−−一加熱導管。FIG. 1 is an explanatory diagram showing an embodiment of a moisture concentration measuring device for measuring moisture concentration in exhaust gas according to the second invention of this application, and FIG. 2 is an explanatory diagram showing an embodiment of a moisture concentration measuring device for measuring moisture concentration in exhaust gas according to the second invention FIG. 2 is an explanatory diagram showing another embodiment of the water concentration measuring device. 1- Flue, 2-- Zirconia oxygen concentration meter, 3
- Gas sampling pipe, 4-...-electronic dehumidifier, 5-...-
Air pump, 6-...-Oxygen concentration meter, ? -----Arithmetic unit, 8-----Heating conduit.
Claims (4)
ガス基準の酸素濃度を測定し、これらの測定値を演算す
ることによって排ガス中の湿ガス基準の水分濃度及び／
又は乾ガス基準の水分濃度を測定することを特徴とする
排ガス中の水分濃度測定方法。(1) By measuring the oxygen concentration based on wet gas in the exhaust gas and the oxygen concentration based on dry gas after dehumidification, and calculating these measured values, the moisture concentration and /
Or a method for measuring moisture concentration in exhaust gas, characterized by measuring the moisture concentration on a dry gas basis.
酸素濃度計及び除湿器によって除湿した後の乾ガス基準
の酸素濃度を測定する第２酸素濃度計を備え、前記第１
酸素濃度計及び前記第２酸素濃度計の測定値を受けて演
算を行う演算器を備えたことを特徴とする排ガス中の水
分濃度測定装置。(2) First step to measure the oxygen concentration based on wet gas in exhaust gas
an oxygen concentration meter and a second oxygen concentration meter for measuring the oxygen concentration on a dry gas basis after dehumidification by the dehumidifier;
An apparatus for measuring moisture concentration in exhaust gas, comprising an oxygen concentration meter and a calculation unit that performs calculations upon receiving the measured values of the second oxygen concentration meter.
されており、また、前記除湿器はガス採取器から採取さ
れた排ガスを除湿することを特徴とする特許請求の範囲
第２項に記載の排ガス中の水分濃度測定装置。(3) Claim 2, wherein the first oxygen concentration meter is installed in the flow of the exhaust gas, and the dehumidifier dehumidifies the exhaust gas collected from a gas sampling device. The moisture concentration measuring device in exhaust gas described in .
器から採取された排ガスを加熱する加熱導管の下流に設
置されていることを特徴とする特許請求の範囲第２項に
記載の排ガス中の水分濃度測定装置。(4) The exhaust gas according to claim 2, wherein the first oxygen concentration meter and the dehumidifier are installed downstream of a heating conduit that heats the exhaust gas collected from the exhaust gas sampling device. A device for measuring the moisture concentration inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61072436A JPS62231149A (en) | 1986-04-01 | 1986-04-01 | Method and instrument for measuring moisture concentration in exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61072436A JPS62231149A (en) | 1986-04-01 | 1986-04-01 | Method and instrument for measuring moisture concentration in exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62231149A true JPS62231149A (en) | 1987-10-09 |
Family
ID=13489249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61072436A Pending JPS62231149A (en) | 1986-04-01 | 1986-04-01 | Method and instrument for measuring moisture concentration in exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62231149A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50137187A (en) * | 1974-04-17 | 1975-10-31 | ||
| JPS58166253A (en) * | 1982-03-26 | 1983-10-01 | Yokogawa Hokushin Electric Corp | Device for measuring concentration of component |
| JPS60222761A (en) * | 1984-04-19 | 1985-11-07 | Fujikura Ltd | Humidity measurement using solid electrolytic oxygen sensor |
-
1986
- 1986-04-01 JP JP61072436A patent/JPS62231149A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50137187A (en) * | 1974-04-17 | 1975-10-31 | ||
| JPS58166253A (en) * | 1982-03-26 | 1983-10-01 | Yokogawa Hokushin Electric Corp | Device for measuring concentration of component |
| JPS60222761A (en) * | 1984-04-19 | 1985-11-07 | Fujikura Ltd | Humidity measurement using solid electrolytic oxygen sensor |
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