JPH0686056U - Pure water dilution sampling device - Google Patents
Pure water dilution sampling deviceInfo
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- JPH0686056U JPH0686056U JP2807493U JP2807493U JPH0686056U JP H0686056 U JPH0686056 U JP H0686056U JP 2807493 U JP2807493 U JP 2807493U JP 2807493 U JP2807493 U JP 2807493U JP H0686056 U JPH0686056 U JP H0686056U
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Abstract
(57)【要約】
【目的】 プロセスラインに設けられたサンプルライン
に純水ラインを接続して適量の純水を希釈導入し、これ
を演算補正することにより低圧サンプル条件下において
も適正かつ確実な計測を行う。
【構成】 プロセスラインにバルブ１４ａとサンプル水
流量伝送器１６ａを備えた流量計１８ａとを連設したサ
ンプルライン１０を接続し、このサンプルライン１０に
バルブ１４ｂと純水流量伝送器１６ｂを備えた流量計１
８ｂと流量調整弁２０とを順次連設した純水ライン１２
を接続し、これらのラインの接続部２２に濁度計２４、
全鉄計２６を連設すると共にこれら各計器の上流側に手
分析ライン２８を分岐接続した計器ライン３０を接続
し、さらにサンプル水流量伝送器１６ａおよび純水流量
伝送器１６ｂからの計測値より流量比を算出する流量比
演算器３２と、この流量比演算器から出力信号と前記濁
度計、全鉄計からの各濃度信号とによりそれぞれの濁度
および全鉄濃度の補正値を算出するよう構成する。
(57) [Abstract] [Purpose] A pure water line is connected to the sample line provided in the process line, an appropriate amount of pure water is diluted and introduced, and by correcting this operation, it is appropriate and reliable even under low pressure sample conditions. Perform various measurements. [Structure] A sample line 10 in which a valve 14a and a flowmeter 18a equipped with a sample water flow transmitter 16a are connected in series to a process line is connected, and the sample line 10 is equipped with a valve 14b and a pure water flow transmitter 16b. Flow meter 1
Pure water line 12 in which 8b and the flow rate adjusting valve 20 are sequentially connected.
Turbidimeter 24 at the connection 22 of these lines.
An all-iron meter 26 is connected in series, and an instrument line 30 in which a manual analysis line 28 is branched and connected is connected to the upstream side of each of these instruments. A correction value of each turbidity and total iron concentration is calculated by the flow ratio calculator 32 for calculating the flow ratio and the output signal from this flow ratio calculator and each concentration signal from the turbidimeter and total iron meter. Configure as follows.
Description
【０００１】[0001]
本考案は、火力発電所等の発電機の起動時におけるプロセスラインの圧力低下 時にこのプロセスラインに設けられたサンプルラインにサンプル採取および測定 が可能となるよう純水を希釈導入して、これを演算補正することにより適正かつ 確実な計測を行うことができる純水希釈サンプリング装置に関する。 In the present invention, when pure water is diluted and introduced into a sample line provided in the process line at the time of pressure drop of the process line at the time of start-up of a generator such as a thermal power plant so that sampling and measurement can be performed, The present invention relates to a pure water dilution sampling device capable of performing proper and reliable measurement by performing calculation correction.
【０００２】[0002]
昨今、火力発電所等におけるサンプリング装置は、プラントの頻繁な起動停止 に対応すべく、広範囲に亘る自動化が普及している、この種のサンプリング装置 はプロセスラインにサンプルラインを設けて、これより採取される水質の手動な らびに自動計測を行っている。 In recent years, a wide range of automation is widely used for sampling devices in thermal power plants, etc. to cope with frequent start-up and shutdown of plants.Sampling devices of this type are provided with a sample line in the process line and sampling is performed from this. The water quality is measured manually and automatically.
【０００３】[0003]
しかしながら、火力発電所等における発電機の起動時においては、プロセスラ インの圧力が低下しその圧力が３〜５kg／cm2 以下になると、サンプル採取およ びその手分析が不可能となり適正な測定ができなくなることが頻繁に発生する難 点を有していた。However, when starting the generator at a thermal power plant, if the pressure of the process line drops and the pressure becomes 3-5 kg / cm 2 or less, sampling and its manual analysis become impossible and proper measurement is performed. The problem is that it often becomes impossible to do so.
【０００４】 そこで、本考案の目的は、火力発電所等のプロセスラインに設けられたサンプ ルラインに純水ラインを接続して適量の純水を希釈導入し、これを演算補正しこ れを出力することにより低圧サンプル条件下においても適正かつ確実な計測を行 うことのできる純水希釈サンプリング装置を提供するにある。Therefore, an object of the present invention is to connect a pure water line to a sample line provided in a process line of a thermal power plant or the like, introduce an appropriate amount of pure water by dilution, and output the result by calculation correction. By doing so, it is possible to provide a pure water dilution sampling device that can perform proper and reliable measurement even under low-pressure sample conditions.
【０００５】[0005]
先の目的を達成するために、本考案に係る純水希釈サンプリング装置は、火力 発電所等のプロセスラインにおけるサンプリング装置において、 前記プロセスラインにバルブと計測されたサンプル水の流量計測値を伝送すべく サンプル水流量伝送器を備えた流量計とを連設したサンプルラインを接続し、前 記サンプルラインにバルブと計測された純水の流量計測値を伝送すべく純水流量 伝送器を備えた流量計と流量調整弁とを順次連設した純水ラインを接続し、さら にサンプルラインと純水ラインとの接続部に濁度計および全鉄計を順次連設する と共にこれら各計測器の上流側より手分析ラインを分岐接続した計器ラインを接 続し、さらに前記サンプル水流量伝送器からの計測信号および前記純水流量伝送 器から出力される各計測信号によりサンプル水流量および純水流量の流量比を算 出する流量比演算器と、この流量比演算器からの出力信号と前記濁度計から出力 される濁度濃度信号とにより濁度濃度補正値を算出する濁度濃度補正演算器と、 前記流量比演算器からの出力信号と全鉄濃度信号とにより全鉄濃度補正値を算出 する全鉄濃度演算器とを設けることを特徴とする。 In order to achieve the above-mentioned object, the pure water dilution sampling device according to the present invention is a sampling device in a process line of a thermal power plant, etc., and transmits a flow rate measurement value of sample water measured by a valve to the process line. In order to connect the sample line connected with the flow meter equipped with the sample water flow transmitter, the pure water flow transmitter was installed in the sample line to transmit the valve and the measured pure water flow rate. Connect a pure water line in which a flow meter and a flow rate adjustment valve are serially connected in series, and connect a turbidity meter and a total iron meter in series at the connection between the sample line and the pure water line. Connect the instrument line with the manual analysis line branched from the upstream side, and connect it to the measurement signal from the sample water flow transmitter and each measurement signal output from the pure water flow transmitter. Turbidity concentration correction value calculated by the flow rate ratio calculator that calculates the flow rate ratio of the sample water flow rate and the pure water flow rate, and the output signal from this flow rate ratio calculator and the turbidity concentration signal output from the turbidity meter. And a total iron concentration calculator for calculating a total iron concentration correction value based on the output signal from the flow rate ratio calculator and the total iron concentration signal.
【０００６】[0006]
本考案の純水希釈サンプリング装置よれば、火力発電所等のプロセスラインに 設けられたサンプルラインに純水ラインを接続して適量の純水を希釈導入し、こ れを演算補正しこれを出力することにより低圧サンプル条件下においても適正か つ確実な計測を行うことができる。 According to the pure water dilution sampling device of the present invention, a pure water line is connected to the sample line provided in the process line of a thermal power plant, etc., an appropriate amount of pure water is diluted and introduced, and this is corrected and output. By doing so, proper and reliable measurement can be performed even under low-pressure sample conditions.
【０００７】[0007]
次に、本考案に係る純水希釈サンプリング装置の実施例について、添付図面を 参照しながら以下詳細に説明する。 図１は本考案に係る純水希釈サンプリング装置を示す。すなわち、図に示すよ うに、参照符号１０はサンプルラインを示し、このサンプルライン１０には弁１ ４ａとサンプル水流量伝送器１６ａを備えた流量計１８ａとが連設され、前記サ ンプルライン１０に弁１４ｂと純水伝送器１６ｂを備えた流量計１８ｂと流量調 整弁２０とを順次連設した純水ライン１２が接続される。 Next, an embodiment of a pure water dilution sampling device according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 shows a pure water dilution sampling device according to the present invention. That is, as shown in the figure, reference numeral 10 indicates a sample line, and a valve 14a and a flow meter 18a equipped with a sample water flow rate transmitter 16a are connected in series to the sample line 10 and the sample line 10 is connected. A pure water line 12 in which a flow meter 18b equipped with a valve 14b and a pure water transmitter 16b and a flow rate adjusting valve 20 are successively connected is connected to the.
【０００８】 そして、サンプルライン１０と純水ライン１２との接続部２２に濁度計２４お よび全鉄計２６を順次連設すると共にこれら各計測器２４、２６の上流側より手 分析ライン２８を分岐接続した計器ライン３０が接続構成される。Then, a turbidimeter 24 and a total iron meter 26 are sequentially connected to a connecting portion 22 between the sample line 10 and the pure water line 12, and a manual analysis line 28 is provided from the upstream side of each of the measuring instruments 24 and 26. Is connected to form a meter line 30.
【０００９】 さらに前記サンプルライン１０の流量計１８ａに設けられたサンプル水流量伝 送器１６ａからの計測信号および純水ライン１２に設けられた純水流量伝送器１ ６ｂから出力される計測信号によりこれらサンプル水流量および純水流量の流量 比を算出する流量比演算器３２を設け、この流量比演算器３２からの出力信号と 前記濁度計２４から出力される濁度濃度信号とにより濁度濃度補正値を算出する 濁度濃度補正演算器３４および前記流量比演算器３２からの出力信号と前記全鉄 計２６より出力される全鉄濃度信号とにより全鉄濃度補正値を算出する全鉄濃度 演算器３６がそれぞれ設けられる。Further, according to the measurement signal from the sample water flow rate transmitter 16 a provided in the flow meter 18 a of the sample line 10 and the measurement signal output from the pure water flow rate transmitter 16 b provided in the pure water line 12. A flow rate ratio calculator 32 for calculating the flow rate ratio between the sample water flow rate and the pure water flow rate is provided, and the turbidity is determined by the output signal from the flow rate ratio calculator 32 and the turbidity concentration signal output from the turbidity meter 24. Total iron concentration correction value is calculated from the output signals from the turbidity concentration correction calculator 34 and the flow rate ratio calculator 32 and the total iron concentration signal output from the total iron meter 26. A concentration calculator 36 is provided for each.
【００１０】 以上のように構成された純水希釈サンプリング装置において、サンプル流量を Ｆ１、純水流量をＦ２とすると、例えばサンプル流量Ｆ１が１００ｍｌ／ｍｉｎ 程度の場合、手分析、濁度計、全鉄計などにおいては計測が不可能となる。この とき、純水ライン１２の弁１４ａを開弁して規定流量を流過させるが、この純水 ライン１２はあらかじめ必要な流量Ｆ２（例えば１ｌ／ｍｉｎ）が流れるように 流量調整弁（ニードル弁）２０により設定しておく。In the pure water dilution sampling apparatus configured as described above, when the sample flow rate is F1 and the pure water flow rate is F2, for example, when the sample flow rate F1 is about 100 ml / min, manual analysis, turbidimeter, total It is impossible to measure with an iron meter. At this time, the valve 14a of the pure water line 12 is opened to allow the specified flow rate to flow therethrough. However, the pure water line 12 has a flow rate adjusting valve (needle valve) so that a required flow rate F2 (for example, 1 l / min) flows in advance. ) 20.
【００１１】 この場合、流量比演算器３２において、In this case, in the flow ratio calculator 32,
【００１２】[0012]
【数１】 [Equation 1]
【００１３】 より、流量比が求められる。例えば、上式にＦ１＝１００（ｍｌ／ｍｉｎ）， Ｆ２＝１０００（ｍｌ／ｍｉｎ）を代入するとＫ＝１１となり、サンプル水は純 水により１１倍に希釈される。From this, the flow rate ratio is obtained. For example, when F1 = 100 (ml / min) and F2 = 1000 (ml / min) are substituted into the above equation, K = 11, and the sample water is diluted 11 times with pure water.
【００１４】 従って、サンプル水の実際の濃度は、流量比演算器３２で求められたＫの値と 濁度計２４より出力された濁度濃度値Ｔｕを濁度濃度補正演算器３４に入力し、 同時に流量比演算器３２で求められたＫの値と全鉄計３０より出力された全鉄濃 度値ＴＦｅを全鉄濃度補正演算器３６に入力し、これら演算器３４、３６により 補正値としてそれぞれ出力される。Therefore, the actual concentration of the sample water is input to the turbidity concentration correction calculator 34 by inputting the K value obtained by the flow rate calculator 32 and the turbidity concentration value Tu output from the turbidimeter 24. At the same time, the K value obtained by the flow ratio calculator 32 and the total iron concentration value TFe output from the total iron meter 30 are input to the total iron concentration correction calculator 36, and the correction values are calculated by these calculators 34, 36. Are output respectively.
【００１５】 そこで、Ｋ＝１１とした場合は、 濁度濃度Ｔｕの補正値は Ｔｕ×Ｋ＝１１Ｔｕ（ｐｐｂ）および 全鉄濃度ＴＦｅの補正値はＴＦｅ×Ｋ＝１１ＴＦｅ（ｐｐｂ）となり、これらを 補正値として出力することができる。Therefore, when K = 11, the correction value of the turbidity concentration Tu becomes Tu × K = 11Tu (ppb) and the correction value of the total iron concentration TFe becomes TFe × K = 11TFe (ppb). It can be output as a correction value.
【００１６】 以上、本考案の一実施例について説明したが、本考案は前記実施例に限定され ること無く、例えば純水の代りに化学的安定性の高くその成分が判明している流 体を用いるなど、また本考案の精神を逸脱しない範囲内において種々の設計変更 をなし得る事は勿論である。Although one embodiment of the present invention has been described above, the present invention is not limited to the above-mentioned embodiment. For example, instead of pure water, a fluid whose chemical stability is high and whose component is known is used. It is needless to say that various design changes can be made without departing from the spirit of the present invention.
【００１７】[0017]
以上説明したように、本考案の純水希釈サンプリング装置は、前記プロセスラ インにバルブと計測されたサンプル水の流量計測値を伝送すべくサンプル水流量 伝送器を備えた流量計とを連設したサンプルラインを接続し、前記サンプルライ ンにバルブと計測された純水の流量計測値を伝送すべく純水流量伝送器を備えた 流量計と流量調整弁とを順次連設した純水ラインを接続し、さらにサンプルライ ンと純水ラインとの接続部に濁度計および全鉄計を順次連設すると共にこれら各 計測器の上流側より手分析ラインを分岐接続した計器ラインを接続し、さらに前 記サンプル水流量伝送器からの計測信号および前記純水流量伝送器から出力され る各計測信号によりサンプル水流量および純水流量の流量比を算出する流量比演 算器と、この流量比演算器からの出力信号と前記濁度計から出力される濁度濃度 信号とにより濁度濃度補正値を算出する濁度濃度補正演算器と、前記流量比演算 器からの出力信号と全鉄濃度信号とにより全鉄濃度補正値を算出する全鉄濃度演 算器とを設けることにより、プロセスラインのプロセス圧力が低圧で流量が少な く通常測定が不可能な場合でも、サンプル水を純水により適正量に希釈し、これ を演算し補正することにより適正なサンプル採取または測定を行うことができる などの優れた効果を有する。 As described above, the pure water dilution sampling device of the present invention is provided with a valve and a flow meter equipped with a sample water flow rate transmitter for transmitting the measured flow rate of sample water to the process line. A pure water line in which a flow meter and a flow rate adjusting valve are sequentially connected to each other by connecting a sample line to the sample line and a valve and a pure water flow rate transmitter for transmitting the measured flow rate of pure water to the sample line. Connect a turbidimeter and a total iron meter in series at the connection between the sample line and the pure water line, and connect an instrument line with a manual analysis line branched from the upstream side of each of these instruments. Further, a flow rate ratio calculator for calculating the flow rate ratio of the sample water flow rate and the pure water flow rate based on the measurement signal from the sample water flow rate transmitter and each measurement signal output from the pure water flow rate transmitter, and this flow rate calculator. A turbidity concentration correction calculator that calculates the turbidity concentration correction value from the output signal from the ratio calculator and the turbidity concentration signal output from the turbidimeter, and the output signal from the flow rate ratio calculator and the total iron By providing a total iron concentration calculator that calculates the total iron concentration correction value based on the concentration signal, the sample water can be treated with pure water even when the process pressure in the process line is low and the flow rate is low and normal measurement is not possible. It has an excellent effect such that an appropriate amount can be sampled or measured by diluting to an appropriate amount and calculating and correcting it.
【提出日】平成５年７月７日[Submission date] July 7, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００３[Name of item to be corrected] 0003
【補正方法】変更[Correction method] Change
【０００３】[0003]
しかしながら、火力発電所等における発電機の起動時においては、プロセスラ インの圧力が低いため、その圧力が３〜５kg／cm2 以下の場合、サンプル採取お よびその手分析が不可能なため適正な測定ができなくなることが頻繁に発生する 難点を有していた。However, when the generator is started up at a thermal power plant, the pressure of the process line is low. Therefore , if the pressure is 3 to 5 kg / cm 2 or less , it is not possible to take a sample and analyze it manually. There was a problem that it was often impossible to perform accurate measurements.
【図１】本考案に係る純水希釈サンプリング装置一実施
例を示す系統図である。FIG. 1 is a system diagram showing an embodiment of a pure water dilution sampling device according to the present invention.
１０ サンプルライン １２ 純水ライン １４ａ、１４ｂ バルブ １６ａ サンプル水流量伝送器 １６ｂ 純水流量伝送器 １８ａ、１８ｂ 流量計 ２０ 流量調整弁 ２２ 接続部 ２４ 濁度計 ２６ 全鉄計 ２８ 手分析ライン ３０ 計器ライン ３２ 流量比演算器 ３４ 濁度補正演算器 ３６ 全鉄補正演算器 10 sample line 12 pure water line 14a, 14b valve 16a sample water flow rate transmitter 16b pure water flow rate transmitter 18a, 18b flow meter 20 flow rate control valve 22 connection part 24 turbidity meter 26 total iron meter 28 manual analysis line 30 instrument line 32 Flow ratio calculator 34 Turbidity correction calculator 36 All-iron correction calculator
Claims (1)
純水希釈サンプリング装置において、 前記プロセスラインにバルブと計測されたサンプル水の
流量計測値を伝送すべくサンプル水流量伝送器を備えた
流量計とを連設したサンプルラインを接続し、前記サン
プルラインにバルブと計測された純水の流量計測値を伝
送すべく純水流量伝送器を備えた流量計と流量調整弁と
を順次連設した純水ラインを接続し、さらにサンプルラ
インと純水ラインとの接続部に濁度計および全鉄計を順
次連設すると共にこれら各計測器の上流側より手分析ラ
インを分岐接続した計器ラインを接続し、さらに前記サ
ンプル水流量伝送器からの計測信号および前記純水流量
伝送器から出力される各計測信号によりサンプル水流量
および純水流量の流量比を算出する流量比演算器と、こ
の流量比演算器からの出力信号と前記濁度計から出力さ
れる濁度濃度信号とにより濁度濃度補正値を算出する濁
度濃度補正演算器と、前記流量比演算器からの出力信号
と全鉄濃度信号とにより全鉄濃度補正値を算出する全鉄
濃度演算器とを設けてなる純水希釈サンプリング装置。1. A pure water dilution sampling device in a process line of a thermal power plant or the like, and a flow meter equipped with a valve and a sample water flow transmitter for transmitting a measured flow rate of sample water to the process line. Is connected to a sample line, and a flow meter equipped with a pure water flow transmitter and a flow control valve are sequentially connected to the sample line to transmit the measured flow rate of pure water to the sample line. A water line is connected, and a turbidimeter and a total iron meter are sequentially installed at the connection between the sample line and the pure water line, and an instrument line is also connected by branching the manual analysis line from the upstream side of each of these instruments. Further, the flow rate ratio between the sample water flow rate and the pure water flow rate is calculated from the measurement signal from the sample water flow rate transmitter and each measurement signal output from the pure water flow rate transmitter. A volume ratio calculator, a turbidity concentration correction calculator for calculating a turbidity concentration correction value from an output signal from the flow ratio calculator and the turbidity concentration signal output from the turbidimeter, and the flow ratio calculator A pure water dilution sampling device provided with a total iron concentration calculator for calculating a total iron concentration correction value from an output signal from the device and a total iron concentration signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2807493U JP2580585Y2 (en) | 1993-05-27 | 1993-05-27 | Pure water dilution sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2807493U JP2580585Y2 (en) | 1993-05-27 | 1993-05-27 | Pure water dilution sampling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0686056U true JPH0686056U (en) | 1994-12-13 |
| JP2580585Y2 JP2580585Y2 (en) | 1998-09-10 |
Family
ID=12238631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2807493U Expired - Lifetime JP2580585Y2 (en) | 1993-05-27 | 1993-05-27 | Pure water dilution sampling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2580585Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022201868A1 (en) * | 2021-03-26 | 2022-09-29 | 横河電機株式会社 | Solution mixing system and solution mixing method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6493441B2 (en) * | 2017-03-27 | 2019-04-03 | 栗田工業株式会社 | Water quality measurement method |
-
1993
- 1993-05-27 JP JP2807493U patent/JP2580585Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022201868A1 (en) * | 2021-03-26 | 2022-09-29 | 横河電機株式会社 | Solution mixing system and solution mixing method |
| JP7147907B1 (en) * | 2021-03-26 | 2022-10-05 | 横河電機株式会社 | SOLUTION MIXING SYSTEM AND SOLUTION MIXING METHOD |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2580585Y2 (en) | 1998-09-10 |
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