Conductivity and hydrogen conductivity synergistic measuring system and method

Abstract

The invention discloses a conductivity and hydrogen conductivity synergistic measuring system and method. The conductivity and hydrogen conductivity synergistic measuring system includes a first conductivity meter, a second conductivity meter, a data processor, a flow sensor for detecting a water sample flow, and a continuous electrical regeneration cation exchanger for removing cations from the water sample; the outlet of the flow sensor is connected to the inlet of the first conductivity meter; the outlet of the first conductivity meter is connected to the inlet of the continuous electricalregeneration cation exchanger; the outlet of the continuous electrical regeneration cation exchanger is connected to the inlet of the second conductivity meter; the outlet water sample of the second conductivity meter is discharged; the signal output ends of the flow sensor and the first conductivity meter are connected to the signal input end of the data processor; the signal output end of the data processor is connected to the current control end of the continuous electrical regeneration cation exchanger; and the regenerative current of the continuous electrical regeneration cation exchangerchanges with the water quality conditions in real time. The conductivity and hydrogen conductivity synergistic measuring system and method can simultaneously monitor the conductivity and hydrogen conductivity of the water sample, and can achieve a synergistic measurement of the conductivity and the hydrogen conductivity.

Description

technical field [0001] The invention belongs to the field of water quality detection and relates to a system and method for coordinated measurement of electrical conductivity and hydrogen electrical conductivity. Background technique [0002] Conductivity and hydrogen conductivity are important indicators for water (steam) supervision in power plants. Usually, conductivity and hydrogen conductivity are measured separately with online meters, and two water samples need to be provided. [0003] However, in practical applications, the hydrogen conductivity measurement uses an ion exchange column to remove cations, and the resin needs to be replaced in time. The replacement resin is not fully regenerated or rinsed, and the release of trace impurity ions will cause positive errors; the cation exchange resin will release low molecular weight Polymer impurities increase the background conductivity, resulting in inaccurate hydrogen conductivity measurement; the measurement device is...

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Problems solved by technology

[0003] However, in practical applications, the hydrogen conductivity measurement uses an ion exchange column to remove cations, and the resin needs to be replaced in time. The replacement resin is not fully regenerated or rinsed, and the release of trace impurity ions will cause positive errors; the cation exchange resin will release low molecular weight Polymer impurities increase the background conductivity, resulting in inaccurate hydrogen conductivity measurement; the measurement device is bulky; it is cumbersome and time-consuming to replace the resin when the resin fails, resulting in continuous measurement.

These problems lead to inaccurate hydrogen conductivity measurement results and cannot truly achieve continuous measurement

[0004] Use a continuous electric regeneration cation exchanger to measure the hydrogen conductivity. If the current is too large, the energy consumption will be high and uneconomical, such as the current is too small. Under a certain flow or pH condition, the continuous electric regeneration cation exchanger can operate stably, such as the flow rate of water samples. After the increase or pH increase, the current is too small to generate H + If the requirements are not met, the resin failure and regeneration cannot reach a balance, and the continuous electric regeneration cation exchanger cannot operate stably and will fail, which will eventually lead to the inability to measure the hydrogen conductivity

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