Level Instrumentation for Steam Generation Process Applications
Steam is today’s utility player in the industrial energy arena. It cleans and sterilizes, dries and concentrates, separates and evaporates. In cookery, it preserves flavor, texture, and retains nutrients. In chemistry, it fosters reactions by controlling process pressure and temperature. In biotechnology, it’s essential for growing production organisms. Steam ranges in purity from boiler grade for routine tasks, to culinary grade “clean steam” for food and dairy, and graduates up to super pure, pyrogen-free steam for biopharmaceutical use.
生成的蒸汽無處不在,因為它是工業y-friendly. It’s intrinsically safe, flexible, economical, aseptic, and environmentally benign. Steam can arise from fossil fuels, biomass or biogas. Its high efficiency is due to its ability to return a significant portion of condensate to the generation cycle. With proper maintenance, a steam plant can last for decades.
Magnetrol® has produced a特殊應用手冊關於蒸汽生成過程的水平儀器。這本手冊著眼於工業蒸汽鍋爐。如果您對發電的蒸汽應用有興趣，我們的燃料發電機鍋爐在我們的情況下解決Power GenandNuclear brochures。這個博客文章，第一個在三部分係列中，將討論蒸汽回路的三個方麵：化妝水處理，飼料飲料和鍋爐供水處理。該係列中的未來帖子將覆蓋其餘蒸汽循環以及流量控製應用。
所有天然水源的淡水都需要在鍋爐使用前不同程度的治療方法。鍋爐供給水處理防止秤和沉積物，去除溶解氣體，防止腐蝕，消除水和蒸汽攜帶，並優化鍋爐效率並最大限度地減少維護成本。
Feed water is treated and conditioned in three phases:
1。Raw make-up water is treated before entering the deaerator
2.處理過的化妝水並返回冷凝物在脫水劑中合並以去除溶解氣體
3.去氧化和加熱的進料水進入鍋爐，在那裏它將用化學品進一步處理
飼料水處理要求大大變化。在極少數情況下，原料化妝水隻需要過濾。更常見的是，需要某種形式的外部治療，如下麵列出的典型過程單元中。
澄清
沉積物的原料可能需要加入化學物質的沉澱罐，以促進懸浮物的沉澱。然後在表麵出口處抽出澄清的水。
連續級別：Eclipse®706引導波雷達（GWR）;Echotel®型號355非接觸式超聲波發射器
粗糙和精細過濾
通過通過過濾器通過化妝水來減少或消除懸浮的固體雜質。如果懸浮的固體非常精細，則可能需要絮凝步驟。
Continuous Level: ECHOTEL Model 355 Non-Contact Ultrasonic Transmitter; Pulsar® R95 Thru-Air Radar Transmitter; Model R82 Thru-air Radar Transmitter
Water Softening
Calcium and magnesium are hard scale forming minerals that build up on boilers and steam-related equipment resulting in costly repairs, increased energy consumption, and plugged equipment. Softening occurs as hardness minerals attach to the softening resin and “exchange” for sodium.
Continuous Level: PULSAR R95 Thru-Air Radar Transmitter; ECLIPSE 706 Guided Wave Radar; Atlas™ or Aurora® Magnetic Level Indicators (MLIs).
Demineralization
脫礦質通常是離子交換過程，由此從水中除去礦物質或礦物鹽。化學處理或進料水蒸發器可用作替代方法，後者使用萃取蒸汽去除原水中的雜質。
點級別：旋轉鏡961超聲波電平開關;型號T20單級浮點級開關。
連續級別：Eclipse 706 GWR;數字E3Modulevel®置換器變送器。點級別：基於T5X和T6x浮動的電平交換機。
Header Tank
處理過的化妝水被路由在冷水箱中儲存。從那裏通過閃蒸罐通過需求，以加熱和脫氣的脫氣器。
連續級別：型號R82非接觸雷達變送器;Eclipse 706 GWR;Pulsar R95 Thru-Air雷達變送器。
脫氣劑
乐动体育下载脫水機上的水平控製通常測量儲罐中的水平，並調製在進料水流上的控製閥，以保持所需設定點的罐水平。
Continuous Level:ECLIPSE 706 Guided Wave Radar; ATLAS or AURORA Magnetic Level Indicators.
點級別：Series 3 ASME B31.1 External Caged Liquid Level Switch.
STEAM LOOP: 3. Boiler Feed Water Treatment
對於更高的鍋爐效率，在進入鍋爐之前，進一步調節進料水。首先，使用鍋爐的熱廢氣流通過蒸發器預熱水。接下來，鍋爐內的水處理可減少發泡，消除懸浮物與鍋爐內部的粘附，進一步防止通過消除殘留的氧氣來腐蝕和縮放。化學進料係統用於內部鍋爐處理和化妝水處理單元。
