冷藏库设计.rar

冷藏库设计


目     录

摘要……………………………………………………………3
1.设计基本资料
1.1设计目的…………………………………………………………………4
1.2设计题目…………………………………………………………………4
1.3设计指标…………………………………………………………………4
1.4设计地点室外气象参数…………………………………………………4
1.5冷藏库室内设计参数……………………………………………………4
2.冷藏库热工计算
2.1冷藏库吨位分配…………………………………………………………5
2.2冷藏库尺寸计算…………………………………………………………5
2.3库房平面设计……………………………………………………………6
2.4围护结构换热系数的确定………………………………………………6
2.5确定围护结构绝热层厚度………………………………………………6
3.库房冷负荷的计算
3.1围护结构热流量…………………………………………………………10
3.2货物热流量………………………………………………………………12
3.3电机运转热流量…………………………………………………………13
3.4冷间操作热流量…………………………………………………………13
3.5库房冷却设备冷负荷……………………………………………………14
3.6冷间机械负荷……………………………………………………………15
4.设备选型
4.1冷凝温度与蒸发温度的确定……………………………………………16
4.2制冷原理的热工计算……………………………………………………17
4.3压缩机的选择计算………………………………………………………17
4.4冷凝器的选择计算………………………………………………………18
4.5冷风机选择计算…………………………………………………………19
4.6中间冷却器的选择计算…………………………………………………21
4.7油分离器的选择计算……………………………………………………22
4.8高压贮液器的选择计算…………………………………………………22
4.9低压循环贮液器的选择计算……………………………………………23
4.10集油器的选择计算……… ……………………………………………23
4.11冷却塔的选择计算………… …………………………………………23
5.库房风系统的布置及水力计算
5.1冷却间1、2的冷分配布置………………………………………………24
5.2冷冻间3、4的冷分配布置………………………………………………24
5.3冷藏间5、6、7的冷分配布置……………………………………………24
6.库房供回液的流量计算
6.1氨液密度的计算…………………………………………………………26
6.2供入库房中氨的计算流量………………………………………………27
7.冷却水系统的水力计算
7.1冷却水管道的水力计算…………………………………………………28
7.2冷却水泵的选择计算……………………………………………………28
8.氨供回管的水力计算
8.1供氨管道的水力计算……………………………………………………29
8.2回气管的水力计算………………………………………………………30
8.3机房氨管道的水力计算…………………………………………………30参考文献………………………………………………………………………34
英语原文及译文……………………………………………………………35

摘要
分配性冷藏库他们主要建设在大中城市、人口较多的水陆交通枢纽，专门贮藏经过冷加工的食品，以工调节淡旺季节、保证市场供应、提供外贸出口和做长期贮备之用。其特点是冷藏容量大并考虑多种食品的贮藏，其冻结能力小仅用于长距离调入冻结食品在运输过程中软化部分的再冻及当地小批量生鲜食品的冻结。压缩式制冷是根据制冷原理将压缩机、冷凝器、节流阀和蒸发器，以及为了使制冷效能更高、运行更安全的辅助设备（如油分离器、贮液器、气液分离器、循环储液桶、集油器、放空气器、阀件、仪表等）用管道连接组成的一个闭合制冷循环。
关键词：压缩  冷藏库  节流  中间完全冷却

ABSTRACT
They build the assigning freezer in large and medium cities , people's more hubs of communications of land and water , is it undergo food of cold working to preserve specially , regulate light busy season section , guarantee market supply , offer foreign export and make with worker stock for a long time use. Characteristic its to refrigerate capacity to be heavy considering many kinds of preservation of food, it freeze ability to be little to used in at a long distance is it freeze food soften part freeze and local short run catch to freeze fresh food in the course of transporting to call inning only. Person who compress refrigeration according to refrigeration principle the compressor , condenser , choke valve and evaporimeter, and for make refrigeration to be efficiency even more high and operating still more safer assisting equipment (Such as the oil separator, person who store liquid,, angry liquid separator , circulation store liquid barrel , collect oil device , person who drop a hint , valve piece , instrument ,etc.), close refrigeration circulation with pipeline one made up to join
Keyword:  Compression  Freezer   Throttle   Complete cooling of the middle