1、HVAC系统介绍Air Conditioning Clinic TRG-TRC018-ENperiod one 第一部分HVAC系统介绍第一部分Dissecting HVAC SystemsHVAC系统组成系统组成系统组成系统组成Air Conditioning Clinic TRG-TRC018-ENComfort Requirements舒适的必要条件舒适的必要条件舒适的必要条件舒适的必要条件 Temperature温度 Humidity湿度 Air movement气流运动 Fresh air新鲜空气Insert Footer3新鲜空气 Clean air洁净空气 Noise level
2、s噪音等级 Lighting灯光 Furniture and work surfaces 设备和工作面The Five System Loops五个系统回路五个系统回路五个系统回路五个系统回路Airside空气侧空气侧空气侧空气侧空气侧空气侧空气侧空气侧Heat rejection放热放热放热放热放热放热放热放热Insert Footer4Chilled water冷水侧冷水侧冷水侧冷水侧冷水侧冷水侧冷水侧冷水侧Refrigeration制冷制冷制冷制冷制冷制冷制冷制冷Controls控制控制控制控制控制控制控制控制Airside Loop空气侧回路空气侧回路空气侧回路空气侧回路supply
3、air送风送风return air回风回风Insert Footer5sensibleheat显热显热Moisture湿气湿气(latent heat潜热潜热)conditionedspace空调区域空调区域Cooling Load Components冷负荷构成冷负荷构成冷负荷构成冷负荷构成Roof房顶房顶Lights灯灯People人人partitionwall内墙内墙Insert Footer6灯灯Equipment设备设备Floor地板地板exteriorwall外墙外墙glasssolarglassconduction 玻璃传导玻璃传导Infiltration渗渗透透人人员员内墙内墙
4、95F(35C)Supply Fan and Filter送风风扇和过滤器送风风扇和过滤器送风风扇和过滤器送风风扇和过滤器OAEA80F(26.7C)MAfilterInsert Footer7supplyfan送风风扇送风风扇conditionedspace空调区域空调区域RA75F(23.9C) SACoolingCoil冷却盘管冷却盘管冷却盘管冷却盘管Tubes管子管子95F(35C)OAEA80F(26.7C)MAInsert Footer8headerFins翅片翅片RA75F(23.9C) SAcoolingcoil55F(12.8C)Chilled-Water Cooling C
5、oil冷水冷却盘管冷水冷却盘管冷水冷却盘管冷水冷却盘管warm, cool,Insert Footer9drain pan凝水盘凝水盘humid air热湿空气热湿空气dry air冷干空气冷干空气condensate drain line冷凝水冷凝水排出排出管路管路part-load operation部分负荷运行部分负荷运行部分负荷运行部分负荷运行Constant-Volume System常流量系统常流量系统常流量系统常流量系统constantsupply-air quantity送风量一定送风量一定送风量一定送风量一定variablesupply-air temperature送风温度
6、变化送风温度变化送风温度变化送风温度变化95F(35C)OAEA80F(26.7C)MAfilterInsert Footer1065F(18.3C)SARA75F(23.9C)95F(35C)OAEA80F(26.7C)MApart-load operation部分负荷运行部分负荷运行部分负荷运行部分负荷运行Variable-Air-Volume (VAV) System变流量变流量变流量变流量（VAV）系统系统系统系统variablesupply-air quantity送风量变化送风量变化送风量变化送风量变化constantsupply-air temperature送风温度不变送风温度
7、不变送风温度不变送风温度不变Insert Footer11RA75F(23.9C)VAVterminalunitSA55F(12.8C)airflowmodulationdevice气流气流调节装置调节装置VAVterminal unitVAV终端设备终端设备Fan-CoilUnit风机盘管机组风机盘管机组风机盘管机组风机盘管机组cooling coil冷却盘管冷却盘管supply-air outlet送风出口送风出口Insert Footer12supply fan送风风扇送风风扇return-air inlet回风进口回风进口Filter过滤器过滤器Central Air Handler中
8、央空气处理机组中央空气处理机组中央空气处理机组中央空气处理机组coolingcoil supply-airInsert Footer13冷却盘管冷却盘管supplyfan送风风扇送风风扇outdoor-airdampers室外空气调节阀室外空气调节阀return-airdampers回风调节阀回风调节阀outlet送风口送风口Filters过滤器过滤器Supply-Air Distribution System送风系统布置送风系统布置送风系统布置送风系统布置Diffuser散流器散流器flexibleduct软管软管sheet-metal supply duct送风金属管送风金属管outdoo
9、r-air inlet新风入口新风入口Insert Footer14VAVterminalVAV终端终端centralair handler中央空气处理机组中央空气处理机组return-airinlet回风口回风口Ceiling Plenum Return天花板回风天花板回风天花板回风天花板回风Roof房顶房顶Plenum高压高压return air回风回风ceilingsupply air送风送风Diffuser散流器散流器Insert Footer15Chilled-Water Loop冷水回路冷水回路冷水回路冷水回路57F(13.9C)80F(26.7C)Insert Footer164
10、2F(5.6C)55F(12.8C)coolingcoil冷却盘管冷却盘管57F(13.9C)80F(26.7C)Evaporator蒸发器蒸发器蒸发器蒸发器evaporatorInsert Footer1742F(5.6C)55F(12.8C)coolingcoilShell-and-Tube Evaporator壳管式蒸发器壳管式蒸发器壳管式蒸发器壳管式蒸发器chilled-waterreturn冷水进冷水进chilled-watersupply冷水出冷水出Insert Footer18refrigerantvapor 制冷剂蒸汽制冷剂蒸汽Tubes管子管子liquid and vapor
11、refrigerant汽液混合态制冷剂汽液混合态制冷剂57F(13.9C)80F(26.7C)Evaporator蒸发器蒸发器Pump and Control Valve泵和控制阀门泵和控制阀门泵和控制阀门泵和控制阀门controlvalve控制阀控制阀Insert Footer1942F(5.6C)55F(12.8C)coolingcoil蒸发器蒸发器Pump泵泵Two-Way Versus Three-Way Valves二通和三通阀门二通和三通阀门二通和三通阀门二通和三通阀门Insert Footer20coil with two-waycontrol valve二通控制阀的二通控制阀的
12、盘管盘管coil with three-waycontrol valve三通控制阀的盘三通控制阀的盘管管Small Chilled-Water System小型冷水系统小型冷水系统小型冷水系统小型冷水系统cooling coilwater chiller冷水机冷水机Insert Footer21Pump泵泵冷却盘管冷却盘管controlvalve控制阀控制阀Refrigeration Loop制冷回路制冷回路制冷回路制冷回路50F(10C)57F(13.9C)80F(26.7C)Evaporator蒸发器蒸发器Insert Footer2238F(3.3C)42F(5.6C)55F(12.8C
13、)蒸发器蒸发器Compressor压缩机压缩机压缩机压缩机compressor120F(48.9C) Reciprocating往复式往复式 Scroll涡旋式涡旋式50F(10C)57F(13.9C)80F(26.7C)evaporatorInsert Footer23 Helical-rotary 卧式螺杆卧式螺杆(screw) Centrifugal 离心式离心式38F(3.3C)42F(5.6C)55F(12.8C)Compressor压缩机压缩机120F(48.9C)50F(10C)57F(13.9C)80F(26.7C)Evaporator蒸发器蒸发器Condenser冷凝器冷凝器
14、冷凝器冷凝器Insert Footer2438F(3.3C)42F(5.6C)55F(12.8C)蒸发器蒸发器Condenser冷凝器冷凝器110F(43.3C)Types of Condensers冷凝器的冷凝器的冷凝器的冷凝器的类型类型类型类型propeller fan驱动风扇驱动风扇finned-tube coil翅片盘管翅片盘管outdoor airrefrigerant vapor制冷剂蒸汽制冷剂蒸汽Fan风扇风扇Insert Footer25sump Pump水泵水泵翅片盘管翅片盘管liquid refrigerant液态制冷剂液态制冷剂refrigerant vapor制冷剂蒸汽
15、制冷剂蒸汽air-cooled风冷式风冷式风冷式风冷式water-cooled水冷式水冷式水冷式水冷式Evaporative蒸发式蒸发式蒸发式蒸发式室外空气室外空气liquid refrigerant液态制冷剂液态制冷剂tubescondenserwater冷凝器水冷凝器水Compressor压缩机压缩机120F(48.9C)50F(10C)57F(13.9C)80F(26.7C)evaporatorExpansion Device节流装置节流装置节流装置节流装置Insert Footer2638F(3.3C)42F(5.6C)55F(12.8C)Condenser冷凝器冷凝器110F(43.
16、3C)expansiondevice节流装置节流装置Helical-Rotary Water Chiller卧式螺杆冷水机卧式螺杆冷水机卧式螺杆冷水机卧式螺杆冷水机Condenser冷凝器冷凝器Compressor压缩机压缩机Insert Footer27冷凝器冷凝器Evaporator蒸发器蒸发器condenserwater冷凝器水冷凝器水chilledwater冷水冷水Finned-Tube Evaporator (Coil)翅片翅片翅片翅片-管式蒸发器管式蒸发器管式蒸发器管式蒸发器（盘管盘管盘管盘管）liquidrefrigerantAirflow气流气流Insert Footer28r
17、efrigerantvapor气态制冷剂气态制冷剂液态制冷剂液态制冷剂气流气流Compressor压缩机压缩机No Chilled-Water Loop无冷水回路无冷水回路无冷水回路无冷水回路Insert Footer29cooling coil(evaporator)冷却盘管冷却盘管（蒸发器）（蒸发器）expansiondevice节流装置节流装置air-cooledcondenser风冷冷凝器风冷冷凝器Packaged Rooftop Air Conditioner整体式屋顶空气处理机组整体式屋顶空气处理机组整体式屋顶空气处理机组整体式屋顶空气处理机组supply fan送风风扇送风风扇propeller-type？condenser fans？冷凝风扇冷凝风扇Filters过滤器过滤器Insert Footer30cooling coil(evaporator)冷却盘管冷却盘管（蒸发器）（蒸发器）air-cooled condenser风冷冷凝器风冷冷凝器Compressors压缩机压缩机exhaust fan排气风扇排气风扇
