Where does the online residual chlorine analyzer act?

In order to maintain the effect of killing bacteria, the amount of residual chlorine in the effluent should always be kept at 0.5-1 mg/l, and the residual chlorine at the end of the water supply pipe network should also be kept at 0.05-0.1 mg/l. An instrument that measures the amount of free chlorine remaining in effluent water is called a chlorine analyzer. The online residual chlorine analyzer is used in the following places: ①On-line monitoring of residual chlorine content in water plant effluent; ②On-line monitoring of residual chlorine content in sewage treatment plant effluent; ③On-line monitoring of residual chlorine content in circulating cooling water; ④Boiler On-line monitoring of residual chlorine content in feed water treatment. When the online residual chlorine analyzer uses sterilized tap water as boiler feed water for desalination treatment, the residual chlorine in the tap water must be removed. Because the presence of residual chlorine will destroy the structure of the ion exchange resin, making its strength worse and easily broken. When measuring with the residual chlorine analyzer, when the tested water sample drops into the o-toluidine reagent, the water sample will turn yellow, and then put the water sample into the photoelectric colorimetric seat. The instrument will obtain the concentration of residual chlorine by comparing the depth of yellow. The measuring instrument adopts DPD photometry and photoelectric colorimetric detection principle to replace the traditional visual colorimetric method, which eliminates human errors and has high measurement resolution. When the chloride ions in the water react with the DPD reagent, the water sample will turn pink. Then put the water sample into the photoelectric colorimetric seat of the instrument, and the instrument can obtain the concentration value of the corresponding ion by comparing the color depth. It can be widely used in waterworks, industrial and mining enterprises, hospitals, domestic or industrial water inspection departments to control the concentration of ions in water to meet the specified water quality standards.
Most people who see a in operation for the first time are amazed at how well the water quality monitoring device is managed.
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