福州二氧化碳储罐

常见故障的处理 Common fault handling
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1.内罐压力异常长高 Inner tank pressure abnormally high
1.1可能是V3回气阀开度过大或阀门失灵，应减小阀门开度或检修阀门。
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安全阀失灵，到启动压力不启动，应检查安全阀。
may be S1, S2 safety valve failure, to start the pressure does not start, check the safety valve.
1.3可能是压力表指示不准确，应校验压力表。
may be pressure gauge indicates inaccurate, should verify the pressure gauge.
2.液位计指示不真实 Level gauge instructions are not true
2.1可能是液位计失灵，应检修液位计。
may be the level gauge failure, should be maintenance level gauge
2.2可能是液位计接头处泄漏，应检修接头连接处，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.蒸发率高，外壳体凝水结霜 High evaporation rate, the outer shell condensate frost
3.1可能是珠光砂未填实或下沉，应补充珠光砂，重新抽真空。
may be unfilled or sinking of pearl sand, pearl sand should be added and re-evacuated.
3.2可能是真空度恶化，应进行真空检漏，重新抽真空。
may be a deterioration of the vacuum, vacuum leak detection should be carried out, re-vacuum.
4.管道阀门液体流动不畅或堵塞 pipeline valve fluid flow or blocked
可能是液体二氧化碳形成干冰的原因造成，应停止使用，用热空气加温管阀至畅通为止。May be caused by the formation of dry ice, should stop using, with hot air heating pipe valve until smooth.
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【标题】

低温储罐
低温储罐是用于存放液态氧、氮、氩、二氧化碳等介质的立式或卧式双层真空绝热储槽。内胆选用材料为奥氏体不锈钢；外容器材料根据用户地区不同，按国家规定选用为Q235-B、Q245R或345R，内、外容器夹层充填绝热材料珠光砂或铝箔、保温棉并抽真空。
中文名 低温储罐 外文名 cryogenic storage tank 实 质 立式或卧式双层真空绝热储槽 结 构 内胆、隔热层、外罐 填充材料 珠光砂或铝箔、保温棉 相关设备 常压储罐、常温储罐等。

1、操作前的准备 Preparation before operation
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1.1 操作者应按本说明书要求及有关文件进行操作。The operator shall follow the instructions and related documents to operate.
1.2正式投入使用前，用干燥的CO2气体对整个系统进行吹除置换，吹除置换所用的气体纯度不低于充装介质的纯度。Formally put into use before the use of dry CO2 gas blowing the entire system replacement, purge replacement gas purity of not less than the purity of the filling
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【主变量】【变量3】【变量2】【变量1】

储罐的增压 Tank pressurization
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当储罐向外供液又需要稳定排液压力时，可利用汽化器（另外配备）进行增压。其操作过程如下：
The carburetor (available separately) can be used for boosting when the reservoir is supplied externally and requires stable discharge pressure. The operation is as follows:
2.3.1开启V2排液阀，使液体二氧化碳汽化器汽化，开启V3回气阀（根据用户回气管路的设置，V3回气阀可置于常开状态）从汽化器分流出来的气体返回储罐上部，使储罐内增压。
Open the V2 drain valve to vaporize the liquid carbon dioxide vaporizer and open the V3 return valve (the V3 return valve can be normally open depending on the return air line of the user). The gas diverted from the vaporizer returns to the upper part of the tank , So that the pressure tank.
2.3.2当储罐内压力达到2.1Mpa时，可暂时关闭V3回气阀。
When the tank pressure reaches 2.1Mpa, the valve can be temporarily closed V3 return gas valve.
2.3.3排液过程中，可通过控制V3回气阀的开度，使增压能力维持在压力稳定的水平。
During drainage, the degree of pressurization can be maintained at a pressure-stable level by controlling the opening of the V3 return valve.
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