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onClick="$j('cntrBody').css('font-size','12px')">小</a>】</p> </div> </div> <div id="n0unthv8m8v" class="clear"></div> <div class="n0unthv8m8v" id="cntrBody" class="zx_txt"> <p style="box-sizing:border-box;margin-top:0px;margin-bottom:10px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 換熱器在使用過程中，因換熱器操作不當，導致水質不合格，將不合格的水注入供暖系統，造成結垢。水垢導熱性差，換熱器換熱效率降低，浪費大量熱能，影響供熱效果。板式熱交換器水垢清洗探討。 </p> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 板式換熱器結垢的清洗方法： </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> (1)機械清洗(用鐵刷刷)的缺點是: </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 刮傷板，刷后更容易掛污垢。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 工人們在冷水中工作，工作條件很差。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 清洗時，必須拆下換熱器，浪費膠水，損害板和膠帶，勞動強度大。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> (2)化學方法清洗:目前采用酸洗。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 1)甲酸清洗 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 將緩沖劑和表面活性劑添加到甲酸洗滌液中，可提高洗滌效果，減少洗滌液對板材的腐蝕。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 具體步驟 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> a.清洗:酸洗前，對熱交換器進行開式清洗，使熱交換器內部無泥、水垢等雜質，提高酸洗效果，降低酸洗的酸消耗量。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> b.將清洗液倒入清洗設備，然后再注入換熱器中。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> c.酸洗：將注滿酸溶液的換熱器靜態(tài)浸泡2h,然后連續(xù)動態(tài)循環(huán)3h-4h,期間每隔0.5h進行正反交替清洗。酸洗結束后，若酸液PH大于2，酸液可重復使用，否則，應將酸洗液稀釋中和后排掉。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> d.堿洗：酸洗結束后，用磷酸三鈉，軟化水按一定的比例配制好，利用動態(tài)循環(huán)的方式對換熱器進行堿洗，達到酸堿中和，使板片不再腐蝕。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> e.水洗：堿洗結束后，用清潔的軟化水，反復對換熱器沖洗0.5h,將換熱器內的殘渣徹底沖洗干凈。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 記錄：在清洗期間，每一步的時間都應該嚴格記錄下來，以便檢查清洗效果。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 清潔后，對熱交換器進行壓力測試，測試合格后，即可使用。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 2）草酸清洗 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 首先，根據板材材質和氧化皮的顏色，草酸可以與氧化皮反應，不會腐蝕板材。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> a.不拆卸熱交換器，在熱交換器的二次網進出口閥的內側設置注水閥，將水箱內3%-5%的草酸溶液注入熱交換器內，利用循環(huán)泵強制草酸溶液在熱交換器和水箱之間循環(huán)，達到清洗目的。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> b.洗兩次，每次洗三四個小時。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> C.用2%磷酸三鈉洗滌后，用清水沖洗兩次。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 防止板式換熱器結垢的措施 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 1.在運行時嚴格檢查水質，必須嚴格檢查系統內的水和軟化槽內的軟化水，合格后才能進入主頁。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 2.新系統投產時，換熱器應與換熱器分開。循環(huán)一段時間后，應將熱交換器納入系統，以避免雜質進入熱交換器。 </div> <div style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> </div> <p style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> 3.供熱系統、除塵器和過濾器應不定期進行清洗，管網應保持清潔，防止換熱器堵塞。 </p> <p style="box-sizing:border-box;margin:0px;padding:0px;color:#333333;font-family:"Microsoft YaHei", Helvetica, Arial, sans-serif;font-size:14px;white-space:normal;"> <p class="p" style="margin-top:0.0000pt;margin-right:0.0000pt;margin-bottom:0.0000pt;text-indent:21.0000pt;mso-char-indent-count:2.0000;padding:0pt 0pt 0pt 0pt;mso-pagination:widow-orphan;"> 本文采于由循環(huán)水處理網 http://www.15minuteseveryday.com 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