ZLG-0.4型试验用冻干机的设计_毕业设计.doc

题目：ZLG-0.4型试验用冻干机的设计 PAGE \* MERGEFORMAT IV PAGE \* MERGEFORMAT IV PAGE \* MERGEFORMAT PAGE \* MERGEFORMAT I ZLG-0.4型试验用冻干机的设计 摘 要 真空冷冻干燥（Vaccum Freeze-Drying，简称冻干）是将物体冻结到共晶点温度以下，然后在较高的真空条件下通过升华干燥除去物体中水分的一种干燥方法。随着制冷、真空、生物、电子等技术的发展，真空冷冻干燥设备现在已广泛的应用于医学、生物学、药学、农业等领域，目前还应用于分子生物学、基因工程学、新型生物医学、中药新制剂、高品质方便食品、考古学、粉末材料制造等领域。目前对冻干设备性能的研究已引起广泛的兴趣和重视。该机广泛用于食品工业、化学工业、医药工业、电子工业等行业的实验研究部门，已是基础科学研究中必不可少的基本手段，为生产小样生物制品与实验研究提供了一种新型加工设备。 本文介绍了ZLG-0.4型试验用真空冷冻干燥机的工作原理、结构特点、设计计算。ZLG-0.4型冻干机是冻干合一型。本机具有加热和制冷的功能。能对物料进行干燥。它由干燥箱、水汽凝结器（捕水器）、加热系统、真空系统、制冷系统和电气控制系统六大部件组成。设计的主要部分是干燥箱、水汽凝结器（捕水器）、真空系统和制冷系统。冻干箱中设工件架，工件架上设有搁板，用来搁置冻干的物料。冻干箱工作温度范围-60℃-+80℃左右。搁板工作温度范围+125-55℃。水汽凝结器用来凝结物料升华产生的水汽，用接管和冻干箱相连。制冷循环一般为复叠式， 关键词：冻干机；性能；结构；设计； ZLG - 0.4 Experimental Design of the Lyophilizer Abstract Vacuum freeze-drying is a kind of dry method，which is to freeze the object below the eutectic point temperature ，then pass the sublimation to obviate the moisture from the object under the condition of higher vacuum.With the development of refrigeration，vacuum，biology，electronics，etc.，now vacuum freeze-drying equipments have already applied to the realms extensively，such as medical science，biology，pharmacy and agriculture，etc，so far they still apply to the molecular biology， genetic engineering， new biomedical science，new type Chinese herbal medicine，high-quality convenient food， archeology and the powder material manufacturing etc.Researches on the function of vacuum freeze-drying equipment have already caused the extensive interest and value. This article describes the ZLG-0.4-type test with vacuum freeze-drying machine works，structural features，design calculations.ZLG-0.4-scale freeze-dried unity. This machine has a heating and cooling function.The material to dry.It consists of oven，condensation (water catching)，heating system，vacuum system，cooling system and electrical control system composed of six parts.The primary components of the oven， condensation (water catching)