T/CSEE 0099-2019 Water treatment bed body (tank body) ion exchange resin sampling method: Inhalation sampling method

Scope

Main technical content: The water treatment desalination system of power plants, including the anion and cation exchanger beds and the condensate water fine treatment system with cation and mixed beds, mainly relies on the ion exchange capacity and filtration function of anion and cation resins to treat water quality. After the beds have operated for a certain period of time, the performance of the ion exchange resins will change to varying degrees. To detect the performance of the ion exchange resins in the beds during operation, it is necessary to sample the ion exchange resins. Previously, power plants all used manual sampling, which not only polluted the regenerated resins but also made it difficult to obtain representative resin samples, making it impossible to conduct in-depth research and evaluation of the performance indicators and operating conditions of the ion exchange resins. To address this problem, we conducted extensive experimental research and developed an inlet sampling method for ion exchange resins in beds (tanks)—the inlet sampling method. By inserting a sampling device that meets technical requirements into the resin layer of the resin bed (tank) through the manhole door, resin samples from various locations can be obtained, which not only avoids contaminating the resins but also ensures that the resins sampled are more representative, facilitating the detection and analysis of various performance indicators of the resins. On this basis, we studied the detailed content (including sampling points, sampling process, etc.) of the sampling method for ion exchange resins in water treatment beds (tanks) and conducted extensive field trials. Through a research method combining theory and experiment, we formulated this technical standard. This standard includes six chapters: scope, normative references, terms and definitions, sampling devices, sampling requirements, and operating steps. The main technical content includes: 1. Technical requirements, st

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