CN106644678A - Method and apparatus for measuring power plant water degassed cation conductivity - Google Patents

Method and apparatus for measuring power plant water degassed cation conductivity Download PDF

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Publication number
CN106644678A
CN106644678A CN201710049445.2A CN201710049445A CN106644678A CN 106644678 A CN106644678 A CN 106644678A CN 201710049445 A CN201710049445 A CN 201710049445A CN 106644678 A CN106644678 A CN 106644678A
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water
heat exchanger
boiling
solenoid
sample
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CN201710049445.2A
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CN106644678B (en
Inventor
陈云龙
边宝丽
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Hky Technology Co Ltd
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Hky Technology Co Ltd
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
    • G01N1/44—Sample treatment involving radiation, e.g. heat
    • 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

Abstract

The invention relates to a method and apparatus for measuring power plant water degassed cation conductivity, and belongs to the field of power plant water treatment. The apparatus comprises a boiling pool and a heat exchanger, the top part of the boiling pool is provided with a thermometer and an air exhaust opening, a heating is arranged in the apparatus, and a solenoid is arranged in the heat exchanger; sample water enters the heat exchanger from a cold water inlet at the lower part of the heat exchanger and flows out from a cold water outlet at the upper part, the water enters the boiling pool from the lower part of the boiling pool and flows out from the upper part, the water enters a hot water inlet at the upper part of a solenoid, and a hot water outlet at the lower part of the solenoid communicates with a conductivity electrode. The heater heats the sample water to critical boiling, CO2 dissolved in the sample water precipitates due to temperature increment and solubility decrease, and the purpose for removing CO2 in the water is realized.

Description

A kind of method and apparatus of measurement power plant water degasification hydrogen conductivity
Technical field
The present invention relates to a kind of method and apparatus of measurement power plant water degasification hydrogen conductivity, belongs to water treatment of power plant field.
Background technology
Hydrogen conductivity is the electrical conductivity that sample water is measured after hydrogen form cation resin treatment, for characterizing steam sample The number of middle anion-content.It is the important indicator for reflecting therrmodynamic system water and steam quality.
But, when carbon dioxide is contained in sample, CO2Being dissolved in sample water can form carbanion, cation exchange Post can not remove carbanion, then CO2The measurement than leading and sun is led will be affected, measured value is raised, and causes vapour The problems such as unqualified, unit starting time lengthening in water qualitative data.By to CO in sample water2Removal, can well Solve this problem.After effective degasification measure, the carbanion in sample water is removed, hydrogen conductivity now（Or claim Degasification conductance）The impact of sample impurities in water could really be reflected.And efficiently gone in eliminating water using which kind of method simple and fast CO2, it is the main elaboration of the present invention.
The content of the invention
For the CO occurred in the existing measurement to hydrogen conductivity2The problem of interference, the technical problem to be solved It is to provide a kind of method and apparatus of measurement power plant water degasification hydrogen conductivity.
The present invention is placed on sample water in closing boiling pool, makes sample water reach close boiling-like using heater State, using CO2The characteristic that solubility in water declines with the rising of temperature, the CO in sample water2Remove.It is arranged on Thermometer in closing boiling pool can indicate temperature, the heat exchanger on boiling pool side, can be the sample water of heating Cooling, while and the sample water of room temperature can be heated.Conductivity electrode after heat exchanger, can in real time measure CO2Gone Hydrogen conductivity value after removing, at this moment can also be degassing conductance.
To reach object above, the technical solution used in the present invention is：
A kind of device of measurement power plant water degasification hydrogen conductivity, comprising boiling pool and heat exchanger, temperature is arranged at the boiling pool top Degree meter and exhaust outlet, internal having heaters, have solenoid inside the heat exchanger；
Sample water enters heat exchanger from the cooling water inlet of heat exchanger bottom, flows out from the cooling water outlet on top, then from boiling pool Bottom enters boiling pool, flows out from top, enters back into the hot water inlet on solenoid top, the hot water outlet connection of solenoid bottom Conductivity electrode.
Using said apparatus, CO in sample water is removed2, the method for measuring hydrogen conductivity, process is as follows：
1) cooling water inlet of the sample water with malleation from heat exchanger, into heat exchanger, after being fully contacted with solenoid, by helical Hot water in pipe is tentatively heated, and then Jing cooling water outlets flow out；
2) heat exchanger exit flow out by preliminarily heated sample water, Jing boiling pools bottom enters boiling pool, in the work of heater With under, sample water is heated to 96 ~ 98 DEG C, close to the state of boiling, CO in water2Because temperature rises the original that high-dissolvability declines Cause, separates out；
3) the degassed sample water Jing boiling pools top of high temperature is flowed out, into the hot water inlet on solenoid top, in heat exchanger, spiral shell Spool outer layer is just into the sample water of heat exchanger；
4) the degassed sample water after cooling down, flows through conductivity electrode, continuous measurement degassing electrical conductivity, under Current Temperatures Degassing electrical conductivity.
The present invention after full of sample, using heater sample is made using a closed boiling pool with importing and exporting The close fluidized state of product water, after reaching expected temperature, the CO dissolved in water2Gas will be separated out because solubility declines, this Sample just realizes CO in water2Removal, reach elimination CO2Interference to hydrogen conductivity measurement.
Description of the drawings
Fig. 1, the CO gone in eliminating water using boiling principle2Device structural representation.
1- boiling pools, 2- heat exchangers, 3- heaters, 4- thermometers, 5- exhaust outlets, 6- solenoids, 7- cooling water inlets, 8- is cold Water out, 9- hot water inlets, 10- hot water outlets, 11- conductivity electrodes.
Specific embodiment
Such as Fig. 1, a kind of CO gone in eliminating water using boiling principle2Device, comprising boiling pool and heat exchanger, the boiling Thermometer and exhaust outlet are arranged at pond top, and internal having heaters has solenoid inside the heat exchanger；
Sample water enters heat exchanger from the cooling water inlet of heat exchanger bottom, flows out from the cooling water outlet on top, then from boiling pool Bottom enters boiling pool, flows out from top, enters back into the hot water inlet on solenoid top, the hot water outlet connection of solenoid bottom Conductivity electrode.
Using said apparatus, CO in sample water is removed2, the method for measuring hydrogen conductivity, process is as follows：
1) cooling water inlet of the sample water with malleation from heat exchanger, into heat exchanger, after being fully contacted with solenoid, by helical Hot water in pipe is tentatively heated, and then Jing cooling water outlets flow out；
2) heat exchanger exit flow out by preliminarily heated sample water, Jing boiling pools bottom enters boiling pool, in the work of heater With under, sample water is heated to 98 DEG C, close to the state of boiling.CO in period water2Because temperature rises what high-dissolvability declined Reason, separates out, and reaches CO in removal sample2Purpose.Sample air water now can be referred to as degassed sample water, and temperature is in close The state of boiling.
3) the degassed sample water Jing boiling pools outlet of high temperature is flowed out, into the hot water inlet of heat exchanger, in heat exchanger, and stream The solenoid of mono- bilayer of Jing, helical outer tube layer be just into heat exchanger the sample water in room temperature, hot water drink cold water according to The double-deck solenoid of support, realization cold water is cold to remove hot water, and is realized with the synchronization of hot water heating cold water.
4) the degassed sample water after cooling down, flows through conductance electrode, measurement degassing electrical conductivity.The hydrogen of certain power plant condensate Electrical conductivity is 0.16 ~ 0.18 μ s/cm, after degassing, in 0.06 ~ 0.09 μ s/cm.

Claims (2)

1. a kind of device of measurement power plant water degasification hydrogen conductivity, it is characterised in that comprising boiling pool and heat exchanger, the boiling Rising pond top has thermometer and exhaust outlet, and internal having heaters has solenoid inside the heat exchanger；
Sample water enters heat exchanger from the cooling water inlet of heat exchanger bottom, flows out from the cooling water outlet on top, then from boiling pool Bottom enters boiling pool, flows out from top, enters back into the hot water inlet on solenoid top, the hot water outlet connection of solenoid bottom Conductivity electrode.
2. the method that usage right requires 1 described device measurement power plant water degasification hydrogen conductivity, it is characterised in that including following step Suddenly：
1) cooling water inlet of the sample water with malleation from heat exchanger, into heat exchanger, after being fully contacted with solenoid, by helical Hot water in pipe is tentatively heated, and then Jing cooling water outlets flow out；
2) heat exchanger exit flow out by preliminarily heated sample water, Jing boiling pools bottom enters boiling pool, in the work of heater With under, sample water is heated to 96 ~ 98 DEG C, close to the state of boiling, CO in water2Because temperature rises the original that high-dissolvability declines Cause, separates out；
3) the degassed sample water Jing boiling pools top of high temperature is flowed out, into the hot water inlet on solenoid top, in heat exchanger, spiral shell Spool outer layer is just into the sample water of heat exchanger；
4) the degassed sample water after cooling down, flows through conductivity electrode, continuous measurement degassing electrical conductivity, under Current Temperatures Degassing electrical conductivity.
CN201710049445.2A 2017-01-23 2017-01-23 A kind of method and apparatus measuring power plant's water degasification hydrogen conductivity Active CN106644678B (en)

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CN201710049445.2A CN106644678B (en) 2017-01-23 2017-01-23 A kind of method and apparatus measuring power plant's water degasification hydrogen conductivity

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Application Number Priority Date Filing Date Title
CN201710049445.2A CN106644678B (en) 2017-01-23 2017-01-23 A kind of method and apparatus measuring power plant's water degasification hydrogen conductivity

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CN106644678B CN106644678B (en) 2019-06-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112665277A (en) * 2020-12-24 2021-04-16 中国原子能科学研究院 Integrated device for online reducing solution temperature and removing bubbles

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1479094A (en) * 2002-08-27 2004-03-03 上海电力学院 Method and device for eliminating carbon dioxide influence in hydrogen electric conductivity measurement
CN1619318A (en) * 2004-12-07 2005-05-25 苏州大学 Measuring method of electroconductirity of water
JP2008241534A (en) * 2007-03-28 2008-10-09 Kurita Water Ind Ltd Air-cooling cooler for high-temperature water and analyzer for high-temperature water using the same
CN201177465Y (en) * 2008-03-04 2009-01-07 刘晓宇 Condensing heat exchanger for gas water heaters
CN102116757A (en) * 2009-12-30 2011-07-06 上海城投原水有限公司 Electrical conductivity measurement system and method for liquid
CN103412192A (en) * 2013-07-08 2013-11-27 浙江省计量科学研究院 Pure water conductivity measurement system
CN103743582A (en) * 2013-12-12 2014-04-23 广州高澜节能技术股份有限公司 Water-cooling radiator conductivity test apparatus
CN204041244U (en) * 2014-08-06 2014-12-24 中国电力工程顾问集团西南电力设计院 One utilizes balance of power plant cooling water backwater waste heat natural gas system
CN204374131U (en) * 2014-12-22 2015-06-03 江苏昊申医学科技有限公司 Electric conductivity test device
CN204882440U (en) * 2015-06-15 2015-12-16 中广核工程有限公司 Degasification hydrogen conductivity measuring device
CN106053545A (en) * 2016-06-17 2016-10-26 天津市龙网科技发展有限公司 Conductivity analyzer system and control method thereof

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1479094A (en) * 2002-08-27 2004-03-03 上海电力学院 Method and device for eliminating carbon dioxide influence in hydrogen electric conductivity measurement
CN1619318A (en) * 2004-12-07 2005-05-25 苏州大学 Measuring method of electroconductirity of water
JP2008241534A (en) * 2007-03-28 2008-10-09 Kurita Water Ind Ltd Air-cooling cooler for high-temperature water and analyzer for high-temperature water using the same
CN201177465Y (en) * 2008-03-04 2009-01-07 刘晓宇 Condensing heat exchanger for gas water heaters
CN102116757A (en) * 2009-12-30 2011-07-06 上海城投原水有限公司 Electrical conductivity measurement system and method for liquid
CN103412192A (en) * 2013-07-08 2013-11-27 浙江省计量科学研究院 Pure water conductivity measurement system
CN103743582A (en) * 2013-12-12 2014-04-23 广州高澜节能技术股份有限公司 Water-cooling radiator conductivity test apparatus
CN204041244U (en) * 2014-08-06 2014-12-24 中国电力工程顾问集团西南电力设计院 One utilizes balance of power plant cooling water backwater waste heat natural gas system
CN204374131U (en) * 2014-12-22 2015-06-03 江苏昊申医学科技有限公司 Electric conductivity test device
CN204882440U (en) * 2015-06-15 2015-12-16 中广核工程有限公司 Degasification hydrogen conductivity measuring device
CN106053545A (en) * 2016-06-17 2016-10-26 天津市龙网科技发展有限公司 Conductivity analyzer system and control method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112665277A (en) * 2020-12-24 2021-04-16 中国原子能科学研究院 Integrated device for online reducing solution temperature and removing bubbles

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