1、高純二氧化碳主要用于電子工業(yè)，二氧化碳激光器、檢測儀器的校正氣及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奶制品、肉類、冷凍食品和其它轉(zhuǎn)運(yùn)中易的食品，在許多工業(yè)加工中作為冷凍劑，例如粉碎熱敏材料、橡膠磨光、金屬冷處理、機(jī)械零件的收縮裝配、真空冷阱等。
3、氣態(tài)二氧化碳用于碳化軟飲料、水處理工藝的pH控制、化學(xué)加工、食品保存、化學(xué)和食品加工過程的惰性保護(hù)、焊接氣體、植物生長劑，在鑄造中用于硬化模和芯子及用于氣動器件。
還應(yīng)用于殺菌氣的稀釋劑（即用氧化乙烯和二氧化碳的混臺氣作為殺菌、殺蟲劑、熏蒸劑，廣泛應(yīng)用于醫(yī)療器具、包裝材料、衣類、毛皮、工廠、文物、書籍的熏蒸）。
4、液體二氧化碳用作致冷劑，飛機(jī)、和電子部件的低溫試驗(yàn)，提高油井采收率，橡膠磨光以及控制化學(xué)反應(yīng)，也可用作滅火劑。
5、超臨界狀態(tài)的二氧化碳可以用作溶解非極性、非離子型和低分子量化合物的溶劑，所以在均相反應(yīng)中有廣泛應(yīng)用

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(zhǔn)確，應(yīng)校驗(yàn)壓力表。
may be pressure gauge indicates inaccurate, should verify the pressure gauge.
2.液位計(jì)指示不真實(shí) Level gauge instructions are not true
2.1可能是液位計(jì)失靈，應(yīng)檢修液位計(jì)。
may be the level gauge failure, should be maintenance level gauge
2.2可能是液位計(jì)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(shí)或下沉，應(yīng)補(bǔ)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(jìn)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橹埂ay be caused by the formation of dry ice, should stop using, with hot air heating pipe valve until smooth.
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2 儲罐的操作Tank operation
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儲罐的操作分為充液、貯存、增壓、排液等過程，每個過程必須做到：V6三通截止閥（連接安全閥）和V8液位計(jì)組合閥始終處于全開狀態(tài)。罐內(nèi)壓力不應(yīng)高于2.16Mpa，壓力不應(yīng)低于0.8Mpa .
The operation of the tank is divided into filling, storage, pressurization, drainage and other processes, each process must be: V6 three-way valve (connecting safety valve) and V8 level gauge combination valve is always in the fully open state. Tank maximum pressure should not exceed 2.16Mpa, the minimum pressure should not be less than 0.8Mpa.
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【主變量】【變量3】【變量2】【變量1】

維護(hù)與檢修 Maintenance and repair
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1.儲罐的使用與維護(hù)，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(jìn)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(hù) Daily inspection and maintenance
儲罐在運(yùn)行過程中，要經(jīng)常檢查安全閥、壓力表、液位計(jì)工作是否正常，閥門管路是否有泄漏，外部有無異常現(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(yàn) Regular verification
3.1安全閥整定壓力不大于2.27Mpa，每年至少校驗(yàn)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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