摘要为了满足对压缩机组测试的需求,设计开发一套压缩机组测试系统。该试验台测试的机组制冷量范围为40-100kw,制冷量测试方法为流量计法,可以兼容四种工质,并且能够兼容风冷水冷机组进行测试。系统能够测试并计算多个参数,自动记录并保存测量参数。65981
试验台系统由制冷剂回路、冷凝水回路、冷媒水回路组成,其中制冷剂回路可以实现风冷机组和水冷机组的切换,冷凝水回路可以和冷媒水回路交换热量,以达到节能的目的。同时采用二次节流发测试低蒸发温度情况,也可以达到节约成本的目的。试验台可以将测试工况稳定在国家标准规定的条件,来对机组进行测量,并自动监控机组运行,自动测试并记录数据。
毕业论文关键字 压缩机组 测试系统 试验台 自动控制
毕业设计说明书(论文)外文摘要
Title Water-cooled and air-cooled compressor test
rigdesign
Abstract
In order to meet the needs of the compressor tests, a compressor test system is designed and developed. The system test the unit which the cooling capacity is range 40-100kw ,and its cooling capacity test methods is the flow meter method, also it can be compatible with four kinds of working fluid. System is able to test and evaluate multiple parameters, automatically record and save the measurement parameters.Test-bed system is composed by refrigerant circuit, condensate loop and chilled water loop, of which the refrigerant circuit can achieve air-cooled and water-cooled units switching, condensate and chilled water loop can exchange heat, in order to achieve energy-saving purposes. Test bench can test conditions and stable conditions in the national standards to measure the unit and automatically monitor the operation, automatic test and record data.
Key word Compressor Test System Test-bed Automatic control
目 录
1 绪论 1
1.1 背景及目的 1
1.2 制冷压缩机组现状 2
1.3 相关标准 2
1.4 有关测试系统的理论及发展趋势 3
2 系统设计参数及方案 5
2.1 设计技术参数 5
2.2 设计方案 5
3 系统测试方法 10
3.1 压缩机组制冷剂回路 10
3.1.1 制冷量的测量 11
3.1.2 含油量的测定 14
3.1.3 低蒸发温度时的测量方法 15
3.2 冷却水回路 17
3.3 冷媒水回路 18
3.4 系统参数 18
4 设备设计与选型 20
4.1 换热器的设计与计算 20
4.1.1水冷式冷凝器 20
4.2.2 风冷式冷凝器 23
4.2.3 蒸发器 24
4.2.4 中间换热器 24
4.2 阀的设计与选型