液體的儲存 liquid storage
液體二氧化碳的儲存屬于帶壓（壓力不低于0.8Mpa）儲存。儲存期間除壓力表、液位計、安全閥應(yīng)投入使用外，其他閥門應(yīng)處于關(guān)閉狀態(tài)。當儲罐壓力超過2.1Mpa時，開啟V7排氣閥降壓。但應(yīng)注意：內(nèi)罐的壓力不得降至低于0.8Mpa，否則將引起液體二氧化碳轉(zhuǎn)變?yōu)楦杀?br>Liquid carbon dioxide storage with pressure (pressure not less than 0.8Mpa) storage. During the storage, the pressure gauge,level gauge, safety valve should be put into use, the other valves should be closed. When the tank pressure exceeds 2.1Mpa, open the V7 exhaust valve buck. However, it should be noted that the pressure inside the tank must not drop below 0.8Mpa, otherwise liquid carbon dioxide will be converted to dry ice.
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1、高純二氧化碳主要用于電子工業(yè)，用于配制其它特種混臺氣，在聚乙烯聚合反應(yīng)中則用作調(diào)節(jié)劑。
2、固態(tài)二氧化碳廣泛用于冷藏百奶制品、肉類、冷凍食品和其它轉(zhuǎn)運中易的食品，在許多工業(yè)加工中作為冷凍劑。
3、氣態(tài)二氧化碳用于碳化軟度飲料、食品保存、化學(xué)和食品加工過程的惰性保護、焊接氣體、植物生長劑。
4、液體二氧化碳用作致冷劑，飛機、和電子部件的低溫試驗，提高油井采收率，問橡膠磨光以及控制化學(xué)反應(yīng)，也可用作滅火劑。

維護與檢修 Maintenance and repair
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1.儲罐的使用與維護，應(yīng)按“壓力容器安全技術(shù)監(jiān)察規(guī)程”要求和本說明進行。
The use and maintenance of the storage tank shall be carried out according to the requirements of the Pressure Vessel Safety Technical Supervision Regulations and these instructions
2.日常檢查與維護 Daily inspection and maintenance
儲罐在運行過程中，要經(jīng)常檢查安全閥、壓力表、液位計工作是否正常，閥門管路是否有泄漏，外部有無異?，F(xiàn)象，發(fā)現(xiàn)問題及時處理。
During operation of the tank, check the safety valve, pressure gauge and liquid level meter regularly, whether the valve line is leaking, whether there is any abnormal phenomenon outside, and find the problem to be handled in time.
3.定期校驗 Regular verification
3.1安全閥整定壓力不大于2.27Mpa，每年至少校驗一次，并加鉛封，作好記錄。
Safety valve setting pressure is not more than 2.27Mpa, at least once a year, and add seals, make a record.
3.2定期檢查夾層真空度，未裝低溫介質(zhì)的情況下真空度應(yīng)低于65Pa，裝有低溫介質(zhì)的情況下，真空度應(yīng)低于10Pa為合格。
Regularly check the sandwich vacuum, the vacuum should be less then 65Pa without vacuum medium; with a low temperature medium, the vacuum should be less than 10Pa for the pass.
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常見故障的處理 Common fault handling
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1.內(nèi)罐壓力異常長高 Inner tank pressure abnormally high
1.1可能是V3回氣閥開度過大或閥門失靈，應(yīng)減小閥門開度或檢修閥門。
May be V3 return valve opening is too large or valve failure, should reduce the valve opening or valve repair.
1.2可能是S1、S2安全閥失靈，到啟動壓力不啟動，應(yīng)檢查安全閥。
may be S1, S2 safety valve failure, to start the pressure does not start, check the safety valve.
1.3可能是壓力表指示不準確，應(yīng)校驗壓力表。
may be pressure gauge indicates inaccurate, should verify the pressure gauge.
2.液位計指示不真實 Level gauge instructions are not true
2.1可能是液位計失靈，應(yīng)檢修液位計。
may be the level gauge failure, should be maintenance level gauge
2.2可能是液位計接頭處泄漏，應(yīng)檢修接頭連接處，排除泄漏。
It may be a leak at the head of the liquid level gauge. It should repair the connection of the joint and eliminate the leakage
3.蒸發(fā)率高，外殼體凝水結(jié)霜 High evaporation rate, the outer shell condensate frost
3.1可能是珠光砂未填實或下沉，應(yīng)補充珠光砂，重新抽真空。
may be unfilled or sinking of pearl sand, pearl sand should be added and re-evacuated.
3.2可能是真空度惡化，應(yīng)進行真空檢漏，重新抽真空。
may be a deterioration of the vacuum, vacuum leak detection should be carried out, re-vacuum.
4.管道閥門液體流動不暢或堵塞 pipeline valve fluid flow or blocked
可能是液體二氧化碳形成干冰的原因造成，應(yīng)停止使用，用熱空氣加溫管閥至?xí)惩橹?。May be caused by the formation of dry ice, should stop using, with hot air heating pipe valve until smooth.
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