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WO2017064598A1 - Système et procédé permettant la détermination en ligne de concentration de dioxyde de carbone dissous dans un échantillon de liquide - Google Patents

Système et procédé permettant la détermination en ligne de concentration de dioxyde de carbone dissous dans un échantillon de liquide Download PDF

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Publication number
WO2017064598A1
WO2017064598A1 PCT/IB2016/055985 IB2016055985W WO2017064598A1 WO 2017064598 A1 WO2017064598 A1 WO 2017064598A1 IB 2016055985 W IB2016055985 W IB 2016055985W WO 2017064598 A1 WO2017064598 A1 WO 2017064598A1
Authority
WO
WIPO (PCT)
Prior art keywords
conductivity
sample
liquid
liquid sample
degassed
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
Application number
PCT/IB2016/055985
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English (en)
Inventor
Datta KUVALEKAR
Abhijeet Deshpande
Anant KAREGAONKAR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FORBES MARSHALL PRIVATE Ltd
Original Assignee
FORBES MARSHALL PRIVATE Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by FORBES MARSHALL PRIVATE Ltd filed Critical FORBES MARSHALL PRIVATE Ltd
Priority to KR1020187012735A priority Critical patent/KR102465625B1/ko
Priority to TR2018/04858A priority patent/TR201804858T1/tr
Publication of WO2017064598A1 publication Critical patent/WO2017064598A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/30—Controlling by gas-analysis apparatus
    • 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
    • G01N33/1826—Organic contamination in water
    • G01N33/1846—Total carbon analysis

Definitions

  • the present disclosure relates to the field of chemical engineering. Particularly, the present disclosure relates to a system and a method for online determination of the concentration of dissolved carbon dioxide in a liquid sample.
  • Masking effect refers to the concentration of ions.
  • Online determination refers to the determination of the dissolved carbon dioxide in a liquid sample by allowing the liquid sample to pass through a system.
  • a magnetite (Fe 3 0 4 ) layer is commonly used as a coating material in boilers, for example - steam boilers, due to its stability at high temperatures. Particularly, during the working of the boilers, scaled layer of residuals such as silica, iron, carbonate, and the like may be formed on the magnetite layer due to foaming. This scaled layer reduces the rate of heat transfer between fluids, for example - steam and water, introduced into the boilers, thereby affecting the efficiency thereof. Therefore, there is a need to remove the scaled layer from the boilers.
  • the steam boilers contain hydroxide (OH ), bicarbonate (HCO 3 ), and carbonate (CO 3 ) ions. These ions act as acid absorbing constituents.
  • HCO 3 ' ⁇ H + + CO 3 2" carbonate ion
  • traces of dissolved carbon dioxide (CO2) are formed due to the dosing of tri- sodium phosphate in the boilers.
  • An object of the present disclosure is to ameliorate one or more problems of the prior art or to at least provide a useful alternative.
  • An object of the present disclosure is to determine the concentration of dissolved C(3 ⁇ 4 in a liquid sample.
  • the present disclosure relates to a system for online determination of the concentration of dissolved carbon dioxide in a liquid sample.
  • the system comprises a sample holder, a conductivity determining unit, a cation conductivity determining unit, a re-boiler, a purge valve, a waste heat recovery unit, and a degassed conductivity determining unit.
  • the conductivity determining unit comprises a conductivity flow through chamber and a specific conductivity cell.
  • the cation conductivity determining unit comprises a cation resin column and a cation conductivity cell.
  • the degassed conductivity determining unit comprises a degassed conductivity flow through chamber and a degassed conductivity cell.
  • the sample holder can be adapted to receive the liquid sample with dissolved carbon dioxide therein.
  • the conductivity flow through chamber can be adapted to receive the liquid sample from the sample holder and store the liquid sample in the conductivity determining unit.
  • the specific conductivity cell can be adapted to determine a specific conductivity of the liquid sample contained in the conductivity flow through chamber.
  • the cation resin column can be adapted to receive the liquid sample from the specific conductivity flow through chamber and remove cations comprising ammonium (NtU "1" ) and H + ions contained in the liquid sample, thereby facilitating reduction in the determined specific conductivity of the liquid sample by the specific conductivity cell and eliminating the masking effect of NH 4 + .
  • the cation conductivity cell can be adapted to determine the reduced specific conductivity of the liquid sample contained in the cation resin column.
  • the re-boiler can be adapted to receive the liquid sample from the cation resin column and heat the liquid sample at a pre-determined temperature in the range of 97°C to 100°C to form a heated sample comprising a portion of gas including carbon dioxide and a portion of degassed liquid including at least one anion selected from the group consisting of OH “ , CI “ , S0 4 “ , P0 4 “ , N0 3 “ , and HC0 3 " .
  • the purge valve can be adapted to receive at least a portion of the heated sample from the re- boiler and separate the portion of gas including carbon dioxide and the portion of degassed liquid from the heated sample.
  • the waste heat recovery unit can be adapted to receive a remaining portion of the heated sample at 97°C to 100°C from the re-boiler and dissipate heat to an incoming sample at ambient temperature for pre -heating the incoming sample, thereby reducing the electrical consumption.
  • the degassed conductivity flow through chamber can be adapted to receive and store the portion of cooled degassed liquid from the waste heat recovery unit.
  • the degassed conductivity cell can be adapted to determine a conductivity of the portion of degassed liquid and the concentration of dissolved carbon dioxide in the portion of degassed liquid contained in the degassed conductivity flow through chamber.
  • the system can further comprise a rotameter.
  • the rotameter can be adapted to maintain the flow-rate of the sample in the cation conductivity determining unit and the degassed conductivity determining unit.
  • the system can further comprise a valve, wherein the valve can be adapted to control the flow of sample received in the sample holder.
  • the system can further comprise a first transmitter and a second transmitter, wherein the first transmitter and the second transmitter can be adapted to display the determined specific conductivity and the determined cation conductivity of the liquid sample respectively.
  • the re-boiler can comprise a plurality of heaters.
  • the present disclosure also relates to a method for online determination of the concentration of dissolved carbon dioxide in the liquid sample using the system as described herein above.
  • the method comprises introducing the liquid sample with dissolved carbon dioxide is introduced in the sample holder.
  • the liquid sample is received in the conductivity determining unit from the sample holder for determining a specific conductivity of the liquid sample.
  • the liquid sample is introduced into the cation conductivity determining unit for removing cations comprising ammonium (NH4 + ) and H + ions contained in the liquid sample, thereby facilitating reduction in the determined specific conductivity of the liquid sample, eliminating the masking effect of NH 4 + , and determining a reduced specific conductivity of the liquid sample.
  • the sample is received in the re-boiler for heating the liquid sample at a pre-determined temperature in the range of 97°C to 100°C to form a heated sample comprising a portion of gas including carbon dioxide and a portion of degassed liquid including at least one anion selected from the group consisting of OH “ , CI “ , S0 4 “ , P0 4 “ , NO 3 “ , and HCO 3 " .
  • a portion of the heated sample is allowed to pass through the purge valve from the re-boiler for separating the portion of gas including carbon dioxide and the portion of degassed liquid from the heated sample.
  • a remaining portion of the heated sample at 97°C to 100°C is introduced into the waste heat recovery unit for dissipating heat to the incoming sample at ambient temperature for pre -heating incoming sample to the re-boiler. Further, the portion of liquid is received in the degassed conductivity determining unit from the purge valve for determining a degassed conductivity of the portion of degassed liquid and the concentration of dissolved carbon dioxide in the portion of degassed liquid.
  • the liquid sample can be water.
  • the concentration of dissolved carbon dioxide in the portion of degassed liquid can be determined by deducting the conductivity of pure water from the conductivity of the portion of degassed liquid to obtain an intermediate conductivity value and further deducting the intermediate conductivity value from the reduced specific conductivity (cation conductivity) of the liquid sample to obtain a final conductivity value, wherein the final conductivity value corresponds to the concentration of dissolved carbon dioxide in the portion of degassed liquid.
  • Figure 1 illustrates a schematic view of a system for online for online determination of the concentration of dissolved carbon dioxide in a liquid sample in accordance with the present disclosure
  • Figure 2 illustrates a flow chart in accordance with the present disclosure
  • FIG. 3 illustrates a flow chart in accordance with the present disclosure
  • Figure 4 illustrates a schematic view of a purge valve in accordance with the present disclosure
  • Figure 5 illustrates a graph depicting variations in cation conductivity and degassed conductivity of a liquid sample in accordance with the present disclosure
  • Figure 6 illustrates a graph depicting variations in the concentration of dissolved carbon dioxide in a liquid sample with and without dosing concentrations in accordance with the present disclosure.
  • the present disclosure envisages a system and a method for online determination of the concentration of dissolved carbon dioxide in the liquid sample so as to obviate the above mentioned drawbacks.
  • the system is described hereinafter with reference to Figure 1.
  • the system (100) comprises: a) a sample holder (102), wherein the sample holder (102) is adapted to receive the liquid sample with dissolved carbon dioxide therein;
  • a conductivity flow through chamber (104a) that is adapted to receive the liquid sample from the sample holder (102) and store the liquid sample in the conductivity determining unit (104); and o a specific conductivity cell (105) that is adapted to determine a specific conductivity of the liquid sample contained in the conductivity flow through chamber (104);
  • a cation conductivity determining unit (Cc) wherein the cation conductivity determining unit (Cc) comprises:
  • a cation conductivity cell (107) that is adapted to determine the reduced specific conductivity or a cation conductivity of the liquid sample contained in the cation resin column (106);
  • a re-boiler (111) that is adapted to:
  • a purge valve (114) that is adapted to:
  • a waste heat recovery unit (110) that is adapted to:
  • degassed conductivity cell (115) that is adapted to determine a conductivity of the portion of degassed liquid and the concentration of dissolved carbon dioxide in the portion of degassed liquid contained in the degassed conductivity flow through chamber (104b).
  • the system (100) further comprises a valve (103), wherein the valve (103) can be adapted to control the flow of the liquid sample received in the sample holder (102).
  • the valve (103) can be a needle valve.
  • the system (100) further comprises a rotameter (109), wherein the rotameter (109) can be adapted to maintain the flow-rate of the liquid sample in the cation conductivity determining unit (Cc) and the degassed conductivity determining unit (Dc).
  • the system (100) further comprises a first transmitter (108) and a second transmitter (116), wherein the first transmitter (108) can be adapted to display the determined specific conductivity and the determined cation conductivity of the liquid sample and the second transmitter (116) can be adapted to display the conductivity of the portion of degassed liquid.
  • the re-boiler (111) comprises a plurality of heaters (112), wherein the plurality of heaters (112) can be adapted to heat the liquid sample at a pre-determined temperature.
  • the pre-determined temperature can be a boiling temperature of the liquid sample.
  • the system (100) further comprises a temperature control system (113), wherein the temperature control system can be adapted to control the pre-determined temperature of the liquid sample in the range of plus - minus 0.5°C.
  • the system (100) further comprises a monitor (117).
  • the monitor (117) can be adapted to display the diagnosis of the specific conductivity of the liquid sample, the cation conductivity of the liquid sample, and the conductivity of the portion of degassed liquid.
  • the system (100) can be mounted on a mounting plate (101).
  • the purge valve is described with reference to Figure 4.
  • the purge valve (114) is referred with numeral (400).
  • the purge valve (400) comprises a purge valve body (404) including a sample inlet port (401), a sample outlet port (403), and a gas exhaust port (405).
  • the sample inlet port (401) and the sample outlet port (403) are fitted with inlet/outlet tube connectors (402).
  • the purge valve (400) further includes a valve cavity (413).
  • the gas exhaust port (405) is fitted with a specially machined gas exhaust tube connector (406).
  • the gas exhaust tube connector (406) houses a sealing ball (409) and an actuating pin
  • the sealing ball (409) and the actuating pin (410) are held in position by a lock nut
  • the actuating pin (410) is free floating and reciprocates up-and-down based on the upward push from a float (408) and gravitational force, respectively.
  • the sealing ball (409) can be welded to the actuating pin (410).
  • the lock nut (411) can be provided with additional holes so as to obviate the restriction of the flow of exhaust gases.
  • the purge valve (400) further includes a guide tube (407) attached to the gas exhaust tube connector (406).
  • the guide tube (407) is provided with a float lock pin (412) towards its operative bottom portion.
  • the float (408) slides inside the guide tube (407) and is restricted by the float lock pin (412) from completely sliding out of the operative bottom portion.
  • the guide tube (407) is provided with a cut-out (414) to ensure that the water level inside and outside the guide tube (407) is the same.
  • the heated sample comprising the portion of gas and the portion of degassed liquid enters the purge valve (400) via the sample inlet port (401), thereby separating the portion of the degassed liquid and the portion of gas in the valve cavity (413).
  • the portion of gas exits via the gas exhaust port (405), while the degassed liquid exits via the sample outlet port (403).
  • the guide tube (407) ensures that the incoming sample (heated sample) does not directly impinge on the float (408), thereby facilitating convenient up-and-down movement of the float (408) conveniently.
  • the water level in the valve cavity (413) is increased, thereby lifting up the float (408) due to buoyancy, i.e., the heated sample is introduced into the purge valve (400) until the water level inside the valve cavity (413) is increased, thereby resulting in closing of the purge valve (400).
  • the actuating pin (410) and consequently the sealing ball (409) are pushed upwards against the self -weight (gravity) and/or a spring force, thereby obviating the flow of the portion of gas from the gas exhaust port (405). This condition describes the "closed position" of the purge valve (400).
  • the portion of gas is separated from the heated sample in the valve cavity (413) and is accumulated at an operative top portion in the valve cavity (413).
  • the level of the portion of degassed liquid inside the valve cavity (413) is decreased, thereby facilitating the float (408) to move in a downward direction.
  • the actuating pin (410) and the sealing ball (409) move downwards under the gravity and/or by the spring force, and thus, the accumulated gas exits from the gas exhaust port (405). This condition describes the "open position" of the purge valve (400).
  • the purge valve (400) facilitates:
  • the liquid sample with dissolved carbon dioxide is introduced in the sample holder (102).
  • the liquid sample is received in the conductivity determining unit (C) from the sample holder (102) for determining the specific conductivity of the liquid sample.
  • the liquid sample is introduced into the cation conductivity determining unit (Cc) from the conductivity determining unit (C) for removing cations comprising ammonium (NH4 + ) and H + ions contained in the liquid sample, thereby facilitating reduction in the determined specific conductivity of the liquid sample, eliminating the masking effect of NH4 + , and determining the reduced specific conductivity or the cation conductivity of the liquid sample.
  • the liquid sample introduced into the cation conductivity determining unit (Cc) comprises H + , Na + , NlV “ , OH “ , CI “ , S0 4 “ , PO 4 “ , and NO 3 “ , and HCO 3 " .
  • the liquid sample leaving the cation conductivity determining unit (Cc) comprises OH “ , CI “ , S0 4 “ , P0 4 “ , N0 3 “ , HCO 3 " , and C0 2 (as shown in Figure 3).
  • the liquid sample is received in the re-boiler (111) from said cation conductivity determining unit (Cc) for heating the liquid sample at a pre-determined temperature in the range of 97°C to 100°C to form the heated sample comprising the portion of gas including carbon dioxide and the portion of degassed liquid including at least one anion selected from the group consisting of OH “ , CI “ , SO 4 “ , PO 4 “ , NO 3 “ , and HCO 3 " .
  • the liquid sample introduced into the re-boiler (111) comprises OH “ , CI “ , S0 4 “ , P0 4 “ , and N0 3 “ , and HCO 3 " , and C0 2 (as shown in Figure 3).
  • the portion of the heated sample is allowed to pass through the purge valve (114) from the re-boiler (111) for separating the portion of gas including carbon dioxide and the portion of degassed liquid from the heated sample (as shown in Figure 3).
  • the remaining portion of the heated sample is introduced into the waste heat recovery unit (110) for dissipating heat to the incoming sample at ambient temperature to preheat the incoming fresh sample in the re-boiler (111), thereby reducing electricity consumption required for online determination of the dissolved carbon dioxide in the sample.
  • the portion of degassed liquid is received in the degassed conductivity determining unit (Dc) from the purge valve (114) and waste heat recovery unit (110) for determining the conductivity of the portion of degassed liquid and the concentration of dissolved carbon dioxide in the portion of degassed liquid.
  • the concentration of dissolved carbon dioxide in the portion of degassed liquid can be determined by the following steps.
  • the conductivity of pure water (typically the conductivity of pure water is 0.055 ⁇ 8/ ⁇ ) can be deducted from the conductivity of the portion of degassed liquid to obtain an intermediate conductivity value.
  • the intermediate conductivity value can be further deducted from the reduced specific conductivity/ cation conductivity of the liquid sample to obtain a final conductivity value, wherein the final conductivity value corresponds to the concentration of dissolved carbon dioxide in the portion of degassed liquid.
  • a portion (A) depicts "no control action” and a portion (B) depicts "control action", i.e., by controlling the dosing of tri-sodium phosphate (Na 3 P0 4 ) and maintaining sufficient OH " ions or P-alkali and M-alkali in the boilers.
  • control action i.e., by controlling the dosing of tri-sodium phosphate (Na 3 P0 4 ) and maintaining sufficient OH " ions or P-alkali and M-alkali in the boilers.
  • control action i.e., by controlling the dosing of tri-sodium phosphate (Na 3 P0 4 ) and maintaining sufficient OH " ions or P-alkali and M-alkali in the boilers.
  • a portion (A) depicts "no control action” and a portion (B) depicts "control action", i.e., by controlling the dosing of tri-sodium phosphate (Na 3 P0 4 ) in the boilers.
  • control action i.e., by controlling the dosing of tri-sodium phosphate (Na 3 P0 4 ) in the boilers.
  • the concentration of dissolved carbon dioxide in the degassed liquid is increased (as represented by curve 1)
  • the concentration of dissolved carbon dioxide in the degassed liquid is decreased (as represented by curve 2).
  • the system and the method of the present disclosure also facilitates in determining pH of the sample, depending upon the conductivity values.
  • the present disclosure described herein above has several technical advantages including, but not limited to, the realization of a system and a method that: facilitates in online determination of the concentration of dissolved carbon dioxide in a liquid sample effectively; and facilitates in online determination of the pH of a liquid sample effectively.

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
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  • General Physics & Mathematics (AREA)
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  • Engineering & Computer Science (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

La présente invention concerne un système et un procédé permettant la détermination en ligne de la concentration de dioxyde de carbone dissous dans un échantillon de liquide. En particulier, la concentration de dioxyde de carbone dissous est déterminée par détermination de valeurs de conductivité de l'échantillon de liquide et d'un échantillon de liquide dégazé. Il est nécessaire de déterminer la concentration de dioxyde de carbone dissous dans l'échantillon, étant donné que le dioxyde de carbone dissous provoque la corrosion des systèmes de canalisation, des systèmes de montage et des accessoires d'une chaudière. Le système et le procédé selon la présente invention facilitent également la réduction de consommation d'électricité requise pour la détermination en ligne du dioxyde de carbone dissous dans l'échantillon de liquide.
PCT/IB2016/055985 2015-10-13 2016-10-06 Système et procédé permettant la détermination en ligne de concentration de dioxyde de carbone dissous dans un échantillon de liquide Ceased WO2017064598A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020187012735A KR102465625B1 (ko) 2015-10-13 2016-10-06 액체 시료에서의 용존 이산화탄소의 온라인 측정을 위한 시스템과 방법
TR2018/04858A TR201804858T1 (tr) 2015-10-13 2016-10-06 Sıvı bir numune içindeki çözünmüş karbon dioksit konsantrasyonunun çevrimiçi tespiti için bir sistem ve yöntem.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN3881MU2015 2015-10-13
IN3881/MUM/2015 2015-10-13

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WO2017064598A1 true WO2017064598A1 (fr) 2017-04-20

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PCT/IB2016/055985 Ceased WO2017064598A1 (fr) 2015-10-13 2016-10-06 Système et procédé permettant la détermination en ligne de concentration de dioxyde de carbone dissous dans un échantillon de liquide

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KR (1) KR102465625B1 (fr)
TR (1) TR201804858T1 (fr)
WO (1) WO2017064598A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110487850A (zh) * 2019-09-10 2019-11-22 华能国际电力股份有限公司 一种脱气电导率测量系统及方法
CN114910519A (zh) * 2022-04-29 2022-08-16 华能国际电力股份有限公司 脱气氢电导率检测方法及系统

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832673A (en) * 1953-07-29 1958-04-29 Thurston E Larson Apparatus and method for determining steam purity
US20120178175A1 (en) * 2011-01-12 2012-07-12 Jay Clifford Crosman CWB conductivity monitor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5633171A (en) * 1995-03-03 1997-05-27 Dionex Corporation Intermittent electrolytic packed bed suppressor regeneration for ion chromatography
IL125595A (en) * 1997-08-14 2001-08-26 Praxair Technology Inc Ultra high purity gas analysis using atmospheric pressure ionization mass spectrometry
JP2010002185A (ja) 2008-06-18 2010-01-07 Shimadzu Corp イオンクロマトグラフィによる陰イオン分析装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2832673A (en) * 1953-07-29 1958-04-29 Thurston E Larson Apparatus and method for determining steam purity
US20120178175A1 (en) * 2011-01-12 2012-07-12 Jay Clifford Crosman CWB conductivity monitor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110487850A (zh) * 2019-09-10 2019-11-22 华能国际电力股份有限公司 一种脱气电导率测量系统及方法
CN110487850B (zh) * 2019-09-10 2023-10-10 华能国际电力股份有限公司 一种脱气电导率测量系统及方法
CN114910519A (zh) * 2022-04-29 2022-08-16 华能国际电力股份有限公司 脱气氢电导率检测方法及系统

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Publication number Publication date
TR201804858T1 (tr) 2018-08-27
KR20180067576A (ko) 2018-06-20
KR102465625B1 (ko) 2022-11-10

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