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class="inside_rnewtime">點擊次數：728 發布時間：2020-02-21</div> <div class="inside_rnewcon"> 　　　　<br />　　鍋爐是一種熱交換設備，它是起到將燃料燃燒時放出的熱量傳遞給水，從而產生蒸汽的作用。如果水質不良，受熱面上就形成水垢，水垢的生成會極大地影響鍋爐導熱能力。物體的導熱能力通常用導熱系數來表示的，導熱系數越大，說明導熱能力強。從下表可以看出：<br />　　<br />　　水垢的導熱系數比鋼鐵的導熱系數小數十倍到數百倍。因此，鍋爐結垢產生以下幾種不良后果：<br />　　<br />　　(1)浪費燃料。鍋爐結垢后，使受熱面的傳熱性能變差，為保持鍋爐額定參數，就必須多投加燃料，因此浪費燃料。<br />　　<br />　　(2)受熱面損壞。結了水垢的鍋爐，受熱面兩側的溫差增大，金屬璧溫升高，強度降低，在鍋內壓力作用下，發生鼓包，甚至引起爆管等嚴重事故。<br />　　<br />　　(3)降低鍋爐出力。鍋爐結垢后，水垢的生成還會減少受熱管內流通截面，增加管內水循環的流動阻力，嚴重者甚至*堵塞。這就破壞了鍋爐的正常水循環，妨礙鍋爐內部的傳熱，降低鍋爐的蒸發能力。因此，鍋爐出力就會降低腐蝕<br />　　<br />　　鍋爐硬度分析儀是一款結構緊湊，易于操作且精確度*的水質分析儀器，用于對水質殘留硬度的自動在線檢測以及水軟化過程的質量控制。此系統根據滴定比色原理對可選擇的極限值進行控制，通過消光法提供精確的測量值讀數，多種功能保證了實時操作的可靠性。低維護和低試劑消耗，可長時間連續運行，基本免維護，可測量1~100μmol/L。<br />　　<br />　　鍋爐硬度分析儀的測量是嚴格而精細的工作。硬度計量的一個重要任務就是為了檢查和監督硬度檢測的準確度，而后者是對產品生產過程和成品進行檢測，便于生產技術管理和保證產品品質。準確的鍋爐水硬度分析儀必須由科學的嚴格計量工作來保證，通過貫徹國家有關試驗方法來實現。由于它們之間的依存關系，因此，進行鍋爐水硬度分析儀的科技工作者和檢測人員，必須對基本的硬度計量單位、計量儀器、計量方法和計量誤差的控制和分析等有所了解。在這一基礎上，熟知硬度檢測方法的國家標準規定，才能正確地使用儀器，從而保證檢測結果的準確性。 </div> <div 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