电解槽重要采样点-中英对照
以下采样点对于电解槽的可靠安全运行非常重要。
5.4.1进料侧盐水供给中的溶液硬度（钙和镁）、溶液液面和溶液浓度
即在共同酸化点后，共同电解车间进料侧盐水供给需要的常规样品。硬度分析避免离子膜损害，可以通过连续分析器完成，但抽样过程中仍旧推荐进一步确定分析器的校准。盐水浓度检测也需要用到样品。
在共同酸化点后，在通往单个电解槽的进料侧盐水管道中也需要采样点。该样品应用于诊断研究，而非常规分析。
5.4.2电解槽淡盐水的盐水浓度和分析
来自单个电解槽的样品应用于盐水浓度检测，盐水电流效度计算分析和酸碱度分析（如果废液中含深度酸化盐水）
来自每个电解槽出料侧总管的样品用于同种测量。
电解车间酸化前的淡盐水总管也需要采样点。
5.4.3进入电解车间的碱液中的碱液浓度
补水后，电解车间的共同进料需要对碱液进行采样点，来测定铁元素和碱液中其他不纯的浓度
5.4.4 电解槽排出碱液的浓度
在共同电解车间碱液排出管中需要采用，保护在可接受范围外的情况中保护离子膜，可以通过连续分析器进行采样点，但采样点过程中仍旧推荐进一步确认分析器的校准。
每个电解槽也要求个体采样点。
5.4.5 氯气气体组分
每个电解槽排出管和共同电解车间的气体总管（在阳极电解槽通气接头之前）中都需要采样点，样品用于氯气气体分析、检测氯气中的含氢量以及电流效度计算。
5.4.6 氢气气体样品
每个电解槽排出管和共同电解车间的气体总管中需要采样点，确定系统已被有效净化。
5.4 Essential Sample Points
It is essential for reliable and safe operation of the Electrolysers that the following sample points are installed.
5.4.1 High hardness (Ca and Mg) level and strength in feed brine supply
Routine sample needed of common cellroom feed brine supply, after common acidification point. Hardness analysis protects against membrane damage. Can be done with continuous analyser although sampling is still recommended to confirm analyser calibrations. Sample also needed for brine strength checks.
Sample point also needed in feed brine lines to individual Electrolysers, after acidification and heaters. This sample is required for diagnostic studies but not routine analysis.
5.4.2 Brine strength and analysis in depleted brine from Electrolysers
Sample from every individual electrolyser needed for brine strength checks, brine analysis for current efficiency calculation, and for pH (if running with deeply acidified brine).
Sample from every Electrolyser exit header needed for same measurements.
Sample point also needed in cellroom depleted brine header before acidification.
5.4.3 Caustic strength in caustic to cellroom
Caustic sample point needed, in common feed to Cellroom, after water addition. This is for measuring Fe and other impurity levels in the caustic.
5.4.4 Caustic strength from Electrolysers
Sample needed from common Cellroom caustic exit header. Protects membrane from conditions outside acceptable range. Can be done with continuous analyser although sampling is still recommended to confirm analyser calibrations.
Individual sample points also required for each Electrolyser.
5.4.5 Chlorine gas composition
Sample point needed on every Electrolyser exit header and in common cellroom gas header (before anolyte tank vent connection). Sample used for chlorine gas analysis, to detect hydrogen in chlorine and for current efficiency calculations.
5.4.6 Hydrogen gas sample
Sample point(s) needed in every Electrolyser exit header and in common cellroom gas header to prove system has been purged effectively.
2014.8.17