WO2000057165A1 - Methode de detection d'ions negatifs dans l'eau et dispositif correspondant - Google Patents
Methode de detection d'ions negatifs dans l'eau et dispositif correspondant Download PDFInfo
- Publication number
- WO2000057165A1 WO2000057165A1 PCT/JP2000/001326 JP0001326W WO0057165A1 WO 2000057165 A1 WO2000057165 A1 WO 2000057165A1 JP 0001326 W JP0001326 W JP 0001326W WO 0057165 A1 WO0057165 A1 WO 0057165A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- water
- anode
- cathode
- chamber
- electric conductivity
- 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.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/182—Specific anions in water
Definitions
- the present invention relates to the detection of anions in water, and more particularly, to a device for detecting anions represented by chlorine ions capable of detecting a leak of cooling water (seawater) of a condenser in a thermal power plant and a nuclear power plant.
- a device for detecting anions represented by chlorine ions capable of detecting a leak of cooling water (seawater) of a condenser in a thermal power plant and a nuclear power plant.
- seawater leaks have been detected by methods such as measuring electrical conductivity, sodium monitor, and atomic absorption method.
- a cation exchange resin is required for the method of measuring the specific resistance or the conductivity.
- the circulating water generally contains ammonia so that the ammonia concentration is about 1 ppm as NH 4 + and the hydrazine concentration is about 100 ppb as N 2 H 4.
- hydrazine are added and adjusted, the specific resistance is low and the conductivity is high, so the change in conductivity of the circulating water is very small if the salt concentration is slightly increased due to a small amount of seawater leak. It is difficult.
- the circulating water is first passed through the regenerated cation exchange resin, Cations such as ammonia and hydrazine, which are present as cations, and sodium ions in the main component NaC1, which have been mixed in due to seawater leak, are then removed.
- Cations such as ammonia and hydrazine, which are present as cations
- sodium ions in the main component NaC1 which have been mixed in due to seawater leak.
- the method of measuring the specific resistance) or the acid conductivity has become common.
- the sodium monitor uses an ion-selective glass electrode. Therefore, the sensitivity in the low concentration region deviates from the Nernst equation due to a decrease in the electromotive force of the electrode, and decreases. A positive error may be given by the force force.
- the electrode surface is contaminated by fine particles of iron oxides and hydroxides, called cladding, and the sensitivity is lowered.
- the present inventors have previously proposed a device for detecting anions in water using an electric continuous ion exchange device. 9 4 3). This is achieved by providing a vacuum chamber, which is separated by two cation exchange membranes and filled with a cation exchanger, between the anode chamber and the cathode chamber of the electric continuous ion exchange device, and removes air from the vacuum chamber. Either place a conductivity measuring instrument in the discharge path of the treated water, or install one or more cation exchange membranes between the anode and cathode compartments, and install a conductivity measuring instrument in the discharge path of the treated water from the anode compartment. A leak of cooling water (seawater) is detected by measuring the electric conductivity of the cooling water.
- the present invention relates to an improvement in the underwater anion detection device proposed above. Disclosure of the invention That is, the present invention provides a device for detecting anions in water using an electric conductivity cell, comprising: an electrolysis device comprising an anode chamber including an anode plate and a cathode chamber including a cathode plate via a cation exchange membrane; An anode chamber of the electrolysis apparatus, comprising: a DC power supply for applying a DC voltage between an anode and a cathode of the electrolysis apparatus; and an electric conductivity cell for measuring the electric conductivity of the sample water.
- the present invention relates to a device for detecting anion in water, which is connected to a room.
- the present invention also relates to a method for detecting anions in water by measuring electric conductivity, wherein a sample water is supplied via a cation exchange membrane to an anode chamber including an anode plate and a cathode chamber including a cathode plate. Introduced into the anode chamber of the electrolysis device composed of, and applied a DC voltage between the anode and the cathode to perform electrolytic treatment, then take out the treated water from the anode chamber and measure its electrical conductivity to determine the shade in the water.
- the present invention also relates to a method for detecting anions in water, which comprises introducing treated water into a cathode chamber of the electrolyzer after detecting ions.
- FIG. 1 is a schematic configuration diagram showing an example of the apparatus for detecting anions in water according to the present invention.
- Figure 2 is a flow diagram of the boiler feedwater circulation in a thermal power plant.
- the reference numbers in Fig. 2 indicate the following elements. 21: Poiler, 22: Superheater, 23: High pressure turbine, 24: Reheater, 25: Low pressure turbine, 26: Generator, 27: Condenser, 28: Seawater, 29 : Desalination equipment, 30: Low pressure heater, 31: Deaerator, 32: High pressure overnight, 33: Economizer.
- FIG. 1 is a schematic configuration diagram showing an example of the apparatus for detecting anions in water according to the present invention.
- an electrolysis device 16 is configured by forming an anode chamber 4 including an anode 2 and a cathode chamber 5 including a cathode 3 via a cation exchange membrane 1, and each of the electrodes is electrically conductive.
- DC power supply 14 Connected to DC power supply 14 by line 15.
- a conduit 7 for introducing the test water 6 into the anode chamber 4 is connected.
- a conduit 8 for taking out the treated water electrolytically treated in the anode chamber is connected to an upper part of the anode chamber 4, and a conductivity cell 9 is attached to the conduit 8.
- the conductivity cell 9 is connected to a conductivity meter 10 and measures the conductivity of the treated water.
- the treated water leaving the conductivity cell 9 is then introduced by conduit 11 into the lower part of the cathode compartment 5 of the electrolyzer.
- a conduit 12 is connected to the upper part of the cathode compartment 5, through which water treated in the cathode compartment is discharged out of the system as drainage 13.
- the present invention is basically a combination of an electrodialyzer and a conductivity meter.
- ammonia and hydrazine are added to prevent corrosion in the system.
- the ammonia concentration is around 1 ppm
- the hydrazine concentration is around 0.1 ppm.
- a sample 6 containing ammonia and hydrazine flows into the anode chamber 4 of the electrolysis device, and when a voltage is applied between the two electrodes, a part of the cations, ammonia and hydrazine, is It passes through the cation exchange membrane 1 and moves to the cathode chamber 5. Therefore, the outlet water of the anode chamber 4 is pure water, and the measured value in the conductivity cell 9 is 0.1 s / cm or less.
- the leakage of seawater occurs in the condenser 2 7 (FIG. 2), in addition to salts of N a C 1 and N a 2 S_ ⁇ 4 of the ammonia ⁇ beauty hydrazine come mixed in circulating water .
- the sample 6 containing such salts flows into the anode compartment 4, some of the cations, ammonium ions and hydrazine, and sodium ions move to the cathode compartment 5 via the cation exchange membrane 1. .
- the challenge water 6 in the anode chamber 4 C 1 first ion or S_ ⁇ 4 2 - remains ions, so that the hydrochloric acid or sulfuric acid occurs.
- the conductivity of sulfuric acid and hydrochloric acid is higher than the conductivity of each neutral salt, highly sensitive detection is possible.
- the acid conductivity of a sample containing only ammonia and hydrazine is usually less than 0.1 s Z cm, but if a seawater leak occurs, it will be more than 111 s / cm, making it easy to detect a seawater leak It becomes possible.
- the sample 6 is introduced into the lower part of the cathode compartment 5 by a conduit 11.
- the sample water introduced into the device and the components of the wastewater discharged from the device are exactly the same, there is no need to treat the wastewater at all. Furthermore, the amount of sample water required for conductivity measurement is halved compared to the apparatus disclosed in JP-A-9-1210943, which is economical.
- Ammonia water was added to pure water treated with a mixed-bed ion exchange resin to adjust NH 4 + to 1.1 ppm to prepare a test water.
- the conductivity of the water at the outlet of the anode chamber was measured when a C1 was 0.1 lppm, lppm, and 10 ppm.
- the electrodes were 50 ⁇ 400 mm wide and 400 mm high, and the distance between the electrodes was 2 mm.
- a cation exchange membrane was placed between the anode and cathode, and fixed with rubber packing.
- a DC voltage of 100 V was applied between the anode and the cathode, and the test water was passed at 300 ml / min.
- the conductivity of the outlet water of the anode chamber was 0.078 sZcm.
- the conductivity of the water at the outlet of the anode chamber was 0.1.
- the present invention is capable of measuring a small amount of chloride ion in an alkaline solution containing no anion other than hydroxide ion, and is capable of measuring a resin having a reduced ion exchange capacity as compared with a conventional method using a cation exchange resin. It has the advantage of being able to measure continuously without the need for replacement. In addition, it can detect with higher sensitivity than the sodium monitor, and is a very inexpensive salt analyzer compared to other analyzers. Furthermore, compared with the apparatus disclosed in Japanese Patent Application Laid-Open No. 9-121043, there is no need to treat wastewater, and the required amount of test water can be reduced by half. Have.
- the present invention can be used particularly for sensing the cooling water (seawater) leak of the condenser at a thermal power plant and a nuclear power plant with high sensitivity.
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Sampling And Sample Adjustment (AREA)
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE60029575T DE60029575T2 (de) | 1999-03-24 | 2000-03-06 | Vefahren und vorrichtung zum nachweis negativer ionen in wasser |
| EP00906709A EP1167954B1 (en) | 1999-03-24 | 2000-03-06 | Method and apparatus for detecting negative ions in water |
| AU28293/00A AU2829300A (en) | 1999-03-24 | 2000-03-06 | Method and apparatus for detecting negative ion in water |
| US09/926,195 US6686751B1 (en) | 1999-03-24 | 2000-03-06 | Method and apparatus for detecting negative ion in water |
| JP2000606990A JP3704289B2 (ja) | 1999-03-24 | 2000-03-06 | 水中の陰イオンの検出方法及び装置 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7900899 | 1999-03-24 | ||
| JP11/79008 | 1999-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2000057165A1 true WO2000057165A1 (fr) | 2000-09-28 |
Family
ID=13677933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2000/001326 Ceased WO2000057165A1 (fr) | 1999-03-24 | 2000-03-06 | Methode de detection d'ions negatifs dans l'eau et dispositif correspondant |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6686751B1 (ja) |
| EP (1) | EP1167954B1 (ja) |
| JP (1) | JP3704289B2 (ja) |
| AU (1) | AU2829300A (ja) |
| DE (1) | DE60029575T2 (ja) |
| WO (1) | WO2000057165A1 (ja) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006343192A (ja) * | 2005-06-08 | 2006-12-21 | Kurita Water Ind Ltd | 炭酸ガス溶解水の評価方法及び炭酸ガス溶解水試料の採水装置 |
| JP2018054359A (ja) * | 2016-09-27 | 2018-04-05 | 東亜ディーケーケー株式会社 | 陰イオン検出システム |
| CN109789375A (zh) * | 2016-08-23 | 2019-05-21 | Swan水质分析仪表公司 | 用于对液体进行电去离子化的装置和方法 |
| CN112162018A (zh) * | 2020-10-20 | 2021-01-01 | 西安热工研究院有限公司 | 一种电厂汽水取样架氢电导率表及其工作方法 |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9625430B2 (en) | 2013-10-18 | 2017-04-18 | Dionex Corporation | Multielectrode electrolytic device and method |
| JP6108020B1 (ja) * | 2016-09-27 | 2017-04-05 | 東亜ディーケーケー株式会社 | イオン交換装置および陰イオン検出装置 |
| JP2018151263A (ja) * | 2017-03-13 | 2018-09-27 | 一般財団法人電力中央研究所 | 流体の冷却設備、及び、発電設備 |
| JP6937217B2 (ja) | 2017-10-17 | 2021-09-22 | 三菱パワー株式会社 | 給水系統における海水の漏洩検出装置及び方法並びに蒸気タービンプラント |
| FR3075450B1 (fr) * | 2017-12-15 | 2019-12-27 | Electricite De France | Procede d'identification de l'unite a l'origine d'une fuite d'eau brute dans un condenseur d'une centrale thermique |
| DE102021001442A1 (de) * | 2021-03-19 | 2022-09-22 | Leonid Guggenberger | Vorrichtung zur Bestimmung von Ionenkonzentrationen in flüssigen Medien |
| JP7310867B2 (ja) * | 2021-09-28 | 2023-07-19 | 栗田工業株式会社 | 超純水中のイオン成分の分析方法及び装置 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07269303A (ja) * | 1994-03-31 | 1995-10-17 | Tohoku Electric Power Co Inc | 復水器海水漏洩連続監視方法 |
| JPH09210943A (ja) * | 1995-11-30 | 1997-08-15 | Ebara Corp | 水中の陰イオンの検出装置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3869376A (en) * | 1973-05-14 | 1975-03-04 | Alvaro R Tejeda | System for demineralizing water by electrodialysis |
| DE3217987A1 (de) * | 1982-05-13 | 1983-11-17 | Gerhard Dipl.-Chem. Dr.-Ing. 5628 Heiligenhaus Kunz | Verfahren und vorrichtung zum quantitativen analysieren von ionenkonzentrationen in waessrigen loesungen, wie waessern aller art |
| JP2714662B2 (ja) | 1988-03-07 | 1998-02-16 | 進 近藤 | 無菌水の製造方法及びその装置 |
| JP3188289B2 (ja) | 1991-10-09 | 2001-07-16 | 日機装株式会社 | プラントの海水漏洩診断装置 |
| JP3100767B2 (ja) | 1992-06-25 | 2000-10-23 | 日機装株式会社 | 海水漏洩検出装置 |
| GB9600541D0 (en) * | 1996-01-11 | 1996-03-13 | Cambridge Consultants | Method of measuring an electrical property |
| US6077434A (en) * | 1999-01-15 | 2000-06-20 | Dionex Corporation | Current-efficient suppressors and method of use |
| US6274019B1 (en) * | 2000-03-08 | 2001-08-14 | Organo Corporation | Electrodeionization apparatus |
-
2000
- 2000-03-06 WO PCT/JP2000/001326 patent/WO2000057165A1/ja not_active Ceased
- 2000-03-06 JP JP2000606990A patent/JP3704289B2/ja not_active Expired - Lifetime
- 2000-03-06 DE DE60029575T patent/DE60029575T2/de not_active Expired - Lifetime
- 2000-03-06 AU AU28293/00A patent/AU2829300A/en not_active Abandoned
- 2000-03-06 US US09/926,195 patent/US6686751B1/en not_active Expired - Fee Related
- 2000-03-06 EP EP00906709A patent/EP1167954B1/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07269303A (ja) * | 1994-03-31 | 1995-10-17 | Tohoku Electric Power Co Inc | 復水器海水漏洩連続監視方法 |
| JPH09210943A (ja) * | 1995-11-30 | 1997-08-15 | Ebara Corp | 水中の陰イオンの検出装置 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP1167954A4 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006343192A (ja) * | 2005-06-08 | 2006-12-21 | Kurita Water Ind Ltd | 炭酸ガス溶解水の評価方法及び炭酸ガス溶解水試料の採水装置 |
| CN109789375A (zh) * | 2016-08-23 | 2019-05-21 | Swan水质分析仪表公司 | 用于对液体进行电去离子化的装置和方法 |
| JP2019528171A (ja) * | 2016-08-23 | 2019-10-10 | スワン・アナリティスク・インストゥルメント・アーゲー | 液体の電気脱イオン化のための装置および方法 |
| JP2018054359A (ja) * | 2016-09-27 | 2018-04-05 | 東亜ディーケーケー株式会社 | 陰イオン検出システム |
| CN112162018A (zh) * | 2020-10-20 | 2021-01-01 | 西安热工研究院有限公司 | 一种电厂汽水取样架氢电导率表及其工作方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1167954B1 (en) | 2006-07-26 |
| US6686751B1 (en) | 2004-02-03 |
| EP1167954A1 (en) | 2002-01-02 |
| DE60029575T2 (de) | 2007-08-09 |
| EP1167954A4 (en) | 2002-09-18 |
| DE60029575D1 (de) | 2006-09-07 |
| JP3704289B2 (ja) | 2005-10-12 |
| AU2829300A (en) | 2000-10-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3169831B2 (ja) | 水中の陰イオンの検出装置 | |
| WO2000057165A1 (fr) | Methode de detection d'ions negatifs dans l'eau et dispositif correspondant | |
| JP2000051865A (ja) | 電気再生型脱塩装置 | |
| JPWO2000057165A1 (ja) | 水中の陰イオンの検出方法及び装置 | |
| WO2019058779A1 (ja) | 脱陽イオン水の導電率の測定方法及び測定システム | |
| JP4671272B2 (ja) | 液中の陰イオン検出方法及び検出装置 | |
| JP2018054359A (ja) | 陰イオン検出システム | |
| WO2002014850A9 (en) | A process and device for continuous ionic monitoring of aqueous solutions | |
| CN114839237A (zh) | 离子交换树脂再生度检测方法及检测装置 | |
| KR100444162B1 (ko) | 고감도 수중 이온성 불순물 감시 방법 및 장치 | |
| RU2729252C1 (ru) | Устройство и способ электродеионизации жидкости | |
| JP7064394B2 (ja) | 脱陽イオン水の導電率の測定システム及び測定方法 | |
| RU2738692C1 (ru) | Способ идентификации блока, служащего причиной утечки неочищенной воды в конденсаторе тепловой электростанции | |
| CN215559200U (zh) | 用于氢电导率测量的连续去除水中阳离子的装置 | |
| US20030180186A1 (en) | Process and device for continuous tonic monitoring of aqueous solutions | |
| JP6916702B2 (ja) | 脱陽イオン水の導電率の測定方法及び測定システム | |
| JP2022070103A (ja) | 陽イオン除去装置と陽イオン除去方法と陰イオン検出装置 | |
| JPH0640081B2 (ja) | 汽力発電プラントにおける水質監視方法 | |
| CN113277602A (zh) | 一种用于氢电导率测量的连续去除水中阳离子的装置和方法 | |
| JP3864539B2 (ja) | イオン交換樹脂の性能評価方法 | |
| JP3974732B2 (ja) | 海水漏洩検出装置 | |
| JPH0743365B2 (ja) | 水処理装置の性能診断装置 | |
| Diggens et al. | High-Purity Water Quality Monitoring | |
| KR100627694B1 (ko) | 중수로형 수지탑에서의 누출 탄산종 고감도 검출 장치 및검출 방법 | |
| JPH07269303A (ja) | 復水器海水漏洩連続監視方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AL AM AT AU AZ BA BB BG BR BY CA CH CN CR CU CZ DE DK DM EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GH GM KE LS MW SD SL SZ TZ UG ZW AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| ENP | Entry into the national phase |
Ref country code: JP Ref document number: 2000 606990 Kind code of ref document: A Format of ref document f/p: F |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 09926195 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 2000906709 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 2000906709 Country of ref document: EP |
|
| REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
| WWG | Wipo information: grant in national office |
Ref document number: 2000906709 Country of ref document: EP |