食品专业毕业论文外文翻译组合式冷库食品科学.doc

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1、外文文献：Prefab Cold StoresPart One Technology Overview The industrialization of agriculture has speeded deep-processing for agricultural products, finely processing for food, and the development of freeze and deepfreeze technology, and has demanded of further cold stores in tonnage, in scale, and in mo

2、des. Thus, new cold stores for food processing and storing are born with the advance of science and technology and refrigeration. The new cold stores have substituted for the traditional ones in constructions and operations, through bran-new construction ideas, i.e. of standardization, of modulariza

3、tion, and of industrialization, etc. Prefab cold stores, increasingly widening their application scopes, and expanding their construction scales, is representing the leading developmental trend of refreeze and deepfreeze, endowed with brilliance of future. DBGC, the domestic largest manufacturer for

4、 refrigeration equipment, has first introduced the technology of advanced prefab cold stores, and has drafted out the national standard for prefab cold stores. DBGC has undertaken for clients such complete technology of prefab cold stores as elaborations for technology programs designs for cold stor

5、es, refrigeration equipment, shield structure, stores heat preservations, electrical controls, installations, and executions for trials. Just within 3 months, DBGC can complete and present client with a satisfactory project of prefab cold store which includes designs and installations for cold store

6、. “Bingshan” prefab cold store is up to the requirements of exports transited in cold stores to European Union and Japan, enabling clients certifications from European Union and Japan to be granted easily. Now DBGC can offer prefab cold store from 10m3 to 20000 m3 in capacity，from 5 tons to 50000 to

7、ns in tonnage volume, all will be met special requirements of clients, and flexibly scientific in designing and manufacturing. At present, DBGC is undertaking prefab cold stores projects worldwide.Part Two Technology Program The prefab cold store consists of shield structure，and prefab thermal insul

8、ting board, etc, the thermal insulting board is on both sides paneled with color steel plate, aluminum plate and stainless steel plate，with the core thermal insulting materials of generally ester urethane or polystyrene, etc，whose weight is 5%10% light compared with other construction materials, and

9、 with the shield structure of light steel. Depending on the combination of thermal insulting materials with shield structure, there are external frame structure and internal no-frame structure for prefab cold stores. At present, the external structure prefab cold store is often used. 1st, Store Boar

10、ds Store board type: hardiness ester-urethane thermal-insulting board and poly-benzene heat preservation board. Now internationally, the hardiness ester-urethane thermal-insulting board with satisfactory heat transmit coefficient is generally used. This board is of polyester filmed color steel plate

11、 both externally and internally; with new convexity and concave groove structure of convenient installation，and with fine heat preservation of property. The store board, completely produced by the advanced production line exported from Italia, has met the international standard for all technical dat

12、a. connection modes： inlay connections、 PVC connections、 H-type aluminum connections、 pothook connections technical data of ester urethane board ItemStandardBingshanDensity(Kg/m3) 40504050Conduction Coefficient(w/m )Crushing Strength ( MPa) Water-absorbing Rate(Kg/m2)Auto-ceasing time off fire (s)7B

13、ending Strength( MPa) 2nd, Refrigeration Technology To satisfy its requirements for refrigeration in tonnage and for food technology, the cold stores have applied ammonia cooling system, freon cooling system and indirect glycol cooling system, etc. The ammonia system：the refrigeration medium is ammo

14、nia (R717)，through liquid ammonia the heat is carried away to satisfy freeze and deepfreeze temperature for food; the freon system: the refrigeration medium is freon (R22、R134a、R404a), the system is highly automatic and quite applicable for small prefab cold stores; the glycol system: fully automati

15、c, simply and conveniently controlling, the system fulfill heat exchanges through narrow temperature gap in liquid glycol，which may reduce food loss for drying, and quite suits air-conditioned preservations for fruits and vegetables. 3rd, Refrigeration Equipment DBGC manufactures “Bingshan” screw re

16、frigeration compressors, reciprocating refrigeration compressors and semi-hermetic refrigeration compressors. Superior in quality and excellent in services, DBGC can offer you a wide range of “Bingshan” refrigeration compressors combinations worldwide, and provides you with top quality refrigeration

17、 equipment of effective energy-saving and high ratio of performance and price. 4th, Electric Controls For “Bingshan” prefab cold stores, both manual operations and automatic controls are available. The automatic controls has risen to international advanced level in such fields as running and load an

18、d unload of refrigeration equipment, temperature of cold stores and refrigeration medium, dynamic stimulation for equipment running, printing and recording of running parameters，supplies for liquid, melting of frost，accidents alarm and its analysis, and condensation pressure, almost all controls for

19、 cold stores are executed under on duties of operators. 5th, Food Technology Wide ranges of processing technologies for food are acquired by DBGC, for example, processing, freeze and deepfreeze, storage and preservation, etc. It is the ultimate ends that DBGC tries to best design refrigeration progr

20、ams for clients in consideration of both food technology and refrigeration technology. Part Three Technology Framework 1st, Steel structure 2nd, Store and ground heat preservation 3rd, Moisture-proof and vapor-proof 4th, Refrigeration equipment (ammonia system、fluorin system and glycol system, etc）

21、5th, Equipment for damping store inside 6th, Equipment for rinsing frost and water-cooling 7th, Equipment for electrical controls 8th, Equipment for ventilation 9th, Other equipment（for cold store doors、security controls、shield structure and auxiliary parts）Part Four Technology Feature 1st, Good app

22、earance: over ten colors are selective for thermal-insulting board and supporting shield structure, at satisfactory options to any styles of buildings. 2nd, Heat preservation：ester-urethane thermal-insulting board and poly-benzene heat preservation board are lower in heat transmit coefficient，strong

23、 in material strength，and fine for heat preservations. 3rd, Flexible design：all specifications of thermal-insulting board for cold stores come up to constructional requirement modes, and flexibly satisfy clients needs for partitions and collations for cold stores. 4th, Short construction period 5th,

24、 Fast installation 6th, Sanitary and tidy store conditions inside for food 7th, Durable constructional structure 8th, Topping materials used 9th, Exact controls for temperaturePart Five Technical Data volume classification chart store heat transmit coefficient chart store temperature classification

25、chart store temperature indoor asymmetry chart empty store temperature drop timetable.Part Six Construction Flow 1st, Earth projects executions for heat preservation layer under level ground, and constructions for power workshops and pump workshops. 2nd, installations and constructions for steel str

26、uctures or supportive shield structures，equipment for power and pump workshops are ready for running. 3rd, Framework constructions for cold stores 4th, Executions of earth projects under level ground (ground、heat preservation layer、water-proof and vapor-proof layer, etc）and constructions for structu

27、re above level ground. 5th,Installations for store doors、air curtains、door shades、refrigeration equipment、eclectic control system、water-supply system of rinsing frost、and store framework, etc 6th, Installations for bump-avoided structure, etc 7th, Coating airtight constructions for stores both indoo

28、r and outdoor 8th, Debugging and trials for all systems of cold stores 9th, Examinations and acceptances for cold Part Seven Technology Scope 1. Freeze and deepfreeze for food（aquatic products、poultry、birds、proceeded food、vegetables, fruits） 2. Packinghouse (pig、cattle、sheep、chicken、duck、goose） 3. F

29、ood processing manufactory 4. Indoor assembly cold stores 5. Seeds stores 6. Biological and medical products1. 7. Dairy products storage中文译文：组合式冷库一、概况农业工业化促进了农产品的深加工，食品精加工和冷冻速冻技术的发展，并对冷库的吨位，级别，型号提出了新的要求，伴着先进的科技及冷藏技术，适用于食品加工及贮藏的新型冷库应运而生。这种冷库以标准化，模块化，工业化崭新的建筑理念在结构及操作上取代了以往传统的冷库。随着日益扩大的适用范围及建筑级别的提高，预制冷

30、库展现了冷冻速冻技术的发展趋势及美好明天。DBGC，国内最大的冷库设备制造商，率先采用先进的预制技术，起草了我国冷冻预制技术的各项标准。DBGC 向客户提供全套组合式冷库技术：技术方案说明，冷冻设备，屏蔽结构，保温，电控设备及安装和事政赔偿等。只需三个月，它便可向客户交付包括设计，安装在内的完整的预制冷库设备。“冰山”牌冷库正是符合客户向欧洲日本出口冷藏设施的需求，简化获得欧盟日本的认证过程。目前，DBGC 10立方米至2万平方米，吨位在5吨至5万吨之间的各种冷库，可以满足客户的各种要求，其科学灵活的设计制造使其在全世界接受订单。二、方案组合式冷库技术包括屏蔽和预制隔热板等。预制隔热板两端镶有

31、彩钢板，铝板，不锈钢板，板中有隔热材料（通常为聚氨酯或聚苯乙烯），这种隔热材料比其他隔热材料轻5%10%，并配有屏蔽结构，此外，预制冷库设备还有外部有框结构和内部无框结构两种，目前，多采用外部有框构造。第一，储存板：硬化聚氨酯隔热板和聚苯乙烯保温板，目前，国际上通用的硬化聚氨酯隔热板具有良好的热转换效率。这种隔热板在彩钢板内外镶有多酯材料，并配有新型中凸和凹槽，便于安装，且具有优良的保温效果。储存板由意大利进口的先进生产线生产，符合国际标准。（1）连接方式 内嵌连线；PVC连接；H型铝线连接；引流连接（2）聚氨酯及数据：条款标准参数冰山冷库数据密度(Kg/m3) 40504050导热系数(w/

32、m )耐热强度 ( MPa) 吸水速率(Kg/m2)排水间隙 (s)7抗弯强度( MPa) 第二，冷藏技术。为满足冷藏吨位及食品技术的需求，该冷柜采用氨，氟利昂间接乙二醇制冷，氨制冷系统：制冷媒介：氨：（R717），热通过液氨散热，满足食品冷冻速冻需求；氟利昂系统：制冷媒介：氟利昂（R22，R134a，R404a），高度自动，适用于小型冷冻设备；乙二醇系统：全自动，简便易控，通过窄小的液乙二醇温度槽进行热量交换，可减少因干燥引起的食物损失，适用于温控的果蔬保存。第三，冷藏设备。DBGC 生产的冰山牌螺旋冷藏压缩机，交换压缩机和半密封压缩机，质量一流，品种齐全，可随意组合，高效节能。第四，电控。

33、冰山牌预制冷藏设备，手动自动皆可。自控水平已达国际先进水平，可自动工作，装卸设备，控温，更换制冷媒介，还可自动启动设备，打印记录工作进程，液体体积，融霜，警报及事故分析，结露压力等所有操作人员的职责。第五，食品技术。DBGC采用多种食品加工技术，例如：加工，冷冻，速冻，存储，保存等综合食品技术和冷藏技术，DBGC竭力为客户提供最佳冷藏方案。三、技术构架1. 钢结构 2.冷柜和地面保温层 3.防潮层 4.冷藏设备（氨系统，氟利昂系统，乙二醇系统） 5.内加湿设备 6.冲霜，冷却水设备 7.电控设备 8.通风设备 9.其他设备（如库门降温安全控制，屏蔽等辅助设施）四、特点一.美观，隔热板有十几种颜

34、色可供选择。二. 保热性良好。聚苯酯和聚苯保温层热交换系数低，硬度强，保温性优良。三. 设计灵活 ，每个冷库有相应配套隔热板型号，灵活满足客户的需求。 四. 工期短。 五. 安装快速。 六. 卫生整洁的储存条件。 七. 耐用构造。 八. 优质材料。 九. 精确控温。五、部分技术数据体积分类表，导热系数表，储存温度表，内部温度异常表，无储存物温度降低时刻表六、 施工流程一.水平地下的保温层的土建及安放电动机水泵结构；二. 钢和屏蔽结构建筑；三. 冷库大体框架； 四. 地下设备（地面，保温层，防水防蒸层等）及地上设备； 五. 门，气扇，门影，冷藏设备，电控系统，除霜供水系统，冷库框架等； 六. 抗颠系统等； 七. 冷库内外不透气涂层； 八. 调试，试运； 九. 验收，受冷七、适用范围1. 食品冷藏速冻（水产品，家禽鸟肉，细粮，果蔬）2. 食品包装（猪，牛，羊，鸡，鸭，鹅）3. 食品加工厂4. 室内冷藏5. 种子存储6. 生物医药产品存储7. 乳制品存储