小型制药冷冻干燥机日常维护和保养

小型制药冷冻干燥机日常维护和保养！

 Check Before Running: 每次开机前要例行检查

ü The state of various valves (absorbing, exhausting valves for compressors, service valves, capped valves and etc.)

所有截止阀（压缩机吸、排气阀、供液阀、手阀等）处于开启状态；

ü Pressure meter: 0.6～0.7Mpa

压力表正常读数：0.6～0.7Mpa

ü Level of compressor oil: 1/4～3/4

压缩机正常油位：1/4～3/4；

 After Power Supply, Please Notice: 送电后应注意

ü Whether compressor collects the refrigerant

压缩机是否自动收液；

ü Whether difference-oil pressure resets

               油压差是否复位等；

 After Running, Please Notice: 开机后注意

ü Whether the sound of compressor is normal, if not, please check power supply

压缩机运行声音是否正常，如果异常请先检查供电的三相电是否平衡；

ü Whether the refrigerating piping vibrates normally, if yes, please fix the loosen parts

制冷管路是否有异常振动，如果有则采用相应的固定措施；

ü Whether the flux of refrigerant is normal by observing the sight glass, if having bubble in sight glass, please check the content of refrigerant and thermostatic valves

视液镜流量是否正常，若有气泡，则说明制冷剂缺少或膨胀阀流量太大；

ü The state of frosting on the thermostatic valves

膨胀阀结霜情况；

ü The state of frosting on the compressor

压缩机回霜情况；

ü Compressor oil return, generally, 1/3～3/4

               冷冻油的回油情况；（一般保持在油视镜的1/3～3/4）

 Compressor Start-up: 压缩机启动

ü Start frequently as little as possible, internal more than 3min

不能频繁启动，间隔的时间应大于3min；

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