Enrichment detection device and enrichment detection method for scale inhibitor in water

Abstract

The invention discloses an enrichment detection device and an enrichment detection method for a scale inhibitor in water. The enrichment detection device comprises a nitrogen gas cylinder, a pressure regulating valve, a pressure discharge valve and a pressure gauge, and an enrichment pipe; a water distributor is arranged in the middle of the upper pipe section of the enrichment pipe, and an upper connecting pipe with internal threads is arranged at the lower end of the upper pipe section of the enrichment pipe; a membrane supporting framework, a lower gasket, a filtering membrane and an upper gasket are arranged at the middle upper part of the lower pipe section of the enrichment pipe; a lower connecting pipe with an internal thread is arranged at the upper end of the lower pipe section; a large-diameter hole is formed in the upper middle portion of the middle pipe section, a small-diameter hole is formed in the lower portion of the middle pipe section, and the middle pipe section is in threaded closed connection with the upper connecting pipe and the lower connecting pipe; and a filtrate collecting tank is arranged below the enrichmentpipe. The device disclosed by the invention is small and portable, and realizes on-site enrichment of the scale inhibitor. The flexibility of the enrichment process is greatly improved. Through adjustment of the device, integration of enrichment and detection processes is realized, and the precision degree and the convenience degree of the detection process are greatly improved.

Description

technical field [0001] The invention relates to the field of enrichment detection of scale inhibitors in water. In particular, it relates to an enrichment detection device and an enrichment detection method for scale inhibitors in water. Background technique [0002] As a chemical additive that inhibits the formation of inorganic salts in water, scale inhibitors can slow down the precipitation of metal ions and improve the recovery rate of reverse osmosis due to their strong metal ion complexing effect. It is widely used in reverse osmosis desalination process. However, due to the complexity and volatility of reverse osmosis influent water quality. It is often difficult to accurately control the appropriate dosage concentration of antiscalant. For this phenomenon, in the actual industrial water treatment process, a relatively high concentration of antiscalant is usually used to avoid the formation of scale, which is a conservative method. This invisibly greatly increases...

AI Technical Summary

Problems solved by technology

Therefore, conventional detection methods are often difficult to achieve effective detection of antiscalants

At the same time, instruments that can detect trace substances, such as liquid chromatography, mass spectrometry, and NMR, have extremely high investment costs

Complex operation requirements, difficult to achieve rapid detection

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