VICKERS威格士雙聯(lián)變量葉片泵3525VQH35A19-1AA-22RV系列泵芯
不定時(shí)的保護(hù)主要有制冷過(guò)冷，制熱過(guò)熱，工作壓力，工作電流，壓縮機(jī)處于低電壓運(yùn)行，空調(diào)電源線接觸問(wèn)題，室外熱交換不良，變頻模塊過(guò)熱過(guò)流等。排查電路板內(nèi)外原因熟悉電路結(jié)構(gòu)，先分清控制板的內(nèi)外電路，外部檢測(cè)、外部控制等，分清故障產(chǎn)生是內(nèi)因還是外因確定是電路控制故障還是制冷系統(tǒng)故障判斷室內(nèi)還是室外故障。。分析出和電路板相連的每根線或插頭的作用，找出用于檢測(cè)空調(diào)性能的外接線路，檢查這些線路是否存在明顯的開(kāi)、短路故障。
KCG-1/.6型高溫齒輪泵的保養(yǎng)應(yīng)注意的問(wèn)題1.管路及結(jié)合處有無(wú)松動(dòng)現(xiàn)象。用手轉(zhuǎn)動(dòng)KCG-1/.6型高溫齒輪泵試看KCG-1/.6型高溫齒輪泵是否靈活。向軸承體內(nèi)加入軸承潤(rùn)滑機(jī)油，觀察油位應(yīng)在油標(biāo)的中心線處，潤(rùn)滑油應(yīng)及時(shí)更換或補(bǔ)充。擰下KCG-1/.6型高溫齒輪泵泵體的引水螺塞，灌注引水。關(guān)好出水管路的閘閥和出口壓力表及進(jìn)口真空表。點(diǎn)動(dòng)電機(jī)，試看電機(jī)轉(zhuǎn)向是否正確。開(kāi)動(dòng)電機(jī)，當(dāng)KCG-1/.6型高溫齒輪泵正常運(yùn)轉(zhuǎn)后，打開(kāi)出口壓力表和進(jìn)口真空泵視其顯示出適當(dāng)壓力后，逐漸打開(kāi)閘閥，同時(shí)檢查電機(jī)負(fù)荷情況。
ISWD型臥式單級(jí)低轉(zhuǎn)速離心泵的工作條件:吸入壓力1.6MPa，或泵系統(tǒng)高工作壓力1.6MPa，即泵吸入口壓力+泵揚(yáng)程1.6MP泵靜壓試驗(yàn)壓力為2.5MPa，訂貨時(shí)請(qǐng)注明系統(tǒng)工作壓力。ISWD型臥式單級(jí)低轉(zhuǎn)速離心泵系統(tǒng)工作壓力大于1.6MPa時(shí)應(yīng)在訂貨時(shí)另行提出，以便在制造時(shí)泵的過(guò)流部分和聯(lián)接部分采用鑄鋼材料。環(huán)境溫度4℃，相對(duì)濕度95％。所輸送介質(zhì)中固體顆粒體積含量不超過(guò)單位體積的.1％，粒度.2mm。
介紹了圓塊式石墨換熱器的特性及石墨原材料對(duì)石墨制化工設(shè)備的影響。結(jié)合PVC生產(chǎn)工藝闡述了石墨制化工設(shè)備在PVC行業(yè)的使用情況。通過(guò)傳熱計(jì)算,對(duì)圓塊式與列管式石墨換熱器的換熱效果進(jìn)行了對(duì)比。[中圖分類號(hào)]TQ325.3;TQ51.5[文獻(xiàn)標(biāo)識(shí)碼]B[文章編號(hào)]19-7937(27)2-3-3石墨換熱器廣泛應(yīng)用于電石乙炔法PVC生產(chǎn)中與HC1氣體或鹽酸相關(guān)的工藝過(guò)程。主要設(shè)備有:氯氫處理工段用氯化氫冷卻器,混合冷凍脫水用二級(jí)石墨冷卻器,預(yù)熱器及合成氣冷卻器,鹽酸冷卻器,乙烯氧氯化法工藝精餾工段中EDC冷卻器等。
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