描述

實驗室在選型儀器的時候，根據(jù)儀表的類別用途及擬安裝地理位置，提出該儀表的保溫防凍需求，再提交與廠家來處理。北方有的地方晝夜溫差太大，夜間可以到達-20多度，若從選型上解決則性價比相當大不合算。

二、保溫材料保溫，即用保溫材料將儀表易凍或怕凍的部位包起來。冬季來臨時要檢查、經(jīng)常排污，防止包裝的保溫材料破損。

三、維護措施1、安裝措施合理選擇安裝地點：干燥、無雨雪滴漏的地方。2、點檢措施有條件時由專人每日對保溫材是否破損、蒸汽管路的是否堵塞進行技術確認與技術處置。3、報警措施有條件的可加裝蒸汽泄露或斷電狀態(tài)的聲光報警小裝置，以方便保溫防凍措施隱患的發(fā)現(xiàn)與及時整治。4、巡檢措施由區(qū)域儀表維護責任人按預定巡檢路線定時巡檢。巡檢中要檢查保溫管線閥門是否正常、保溫箱是否正常、疏水裝置是否正常、保溫材料包裝是否完好、電伴熱供電元器件是否正常等。

四、伴熱措施1、蒸汽伴熱措施即使用管蒸汽暖氣保溫。冬季保溫送汽之前要檢查一下蒸汽保溫管路是否暢通或堵塞。2、保溫保護箱措施3、電加熱帶措施：電伴熱保溫技術是一種新型的由電能直接轉(zhuǎn)化為熱能的供暖技術。加裝保溫電纜，將伴熱帶，纏繞在儀表上，或粘在儀表柜內(nèi)部(但要注意所用伴熱帶的長度，要經(jīng)濟適度)

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