空调系统维修手册.doc

HVAC System for Passengers CRH3Document No.: H0837E 第131页 共130页Maintenance ManualDate: 06/12/15 版本: 4.10HVAC System for CRH3CRH3for Passengers Saloon旅客车厢空调系统Maintenance Manual维修手册Version:版本：4.1 (DRAFT) Date:41（草稿）日期：Written by制作Checked by校对Approved by批准History of Changes修改历史记录 NOTE注意The portion of the text affected by the change is indicated by a vertical line in the outer margin of the page.在本页页边空白外用垂直线表示变化对部分正文的影响。Issue版本Date日期Reason for Change改变原因Page(s)页数Draft version起草版本all全部Preliminary初稿all全部Document format updated.文件格式更新。The following Sections, Figures and Tables have been modified:下列段落，图形和表格更改:Sections 2.3.3, 4.4.2.2., 4.5.1, and4.5.3.5.段落 2.2.3,4.4.2.2,4.5.1和4.5.3.5Figures 2-1, 2-7 through 2-22图形 21，27到222Tables 1-1, 2-1 and 2-2表格 11，21和21Other minor errata have been also amended.其他较小的错误也已经被修订。all全部Please, see markups all over the document.请看文件中的所有上标。all全部Please, see markups all over the document.请看文件中的所有上标。all全部Contents内容Function功能1.1 Refrigeration Cycle1.1 制冷循环Description说明Introduction介绍System Technical Specifications系统技术规范Package HVAC UnitHVAC单元包Mixing Box混合箱Exhaust Unit排气单位Fresh Air Grill with Pressure Waves Protection压力波保护的新鲜空气栅格Pressure Waves Sensor压力波传感器Fan-Heaters风扇加热器Technical Description技术说明Package HVAC UnitHVAC单元包Mixing Boxes混合箱Exhaust Unit排气单位Auxiliary Heaters辅助加热器Electrical and Electronic Control Panel电气和电子控制面板Temperature Sensors温度传感器Pressure Waves Protection System压力波保护系统Air Distribution Damper空气分配调节阀Ducting Reheater导管再热器Lounge Air Damper - Car 01休闲室空气调节阀车厢 01System Operation系统操作HVAC OFFHVAC 断开Frost Protection防冻Over-Temperature Protection超温防护HVAC OFF EmergencyHVAC紧急断开Car Washing车厢清洗Emergency ventilation 紧急通风HVAC Regulating ModeHAVC调节模式Temperature Set Point Value温度设定值Solenoid Valves, Compressor and Condenser Fan Motors Management螺线管阀门，压缩机和冷凝器风扇电机管理Conditions for Compressors Running压缩机运行环境High and Low Pressure Management高压和低压管理Air-heaters, WCs, Lounge Reheater and Vestibule Fan-Heaters Management空气加热器，厕所，休闲室再热器和门廊风扇加热器管理Conditions for Heating Operation加热运行环境Temperature Sensor Management温度传感器管理Reduced Mode节约模式Error!错误！Bookmark not defined.没有标明页码。Tunnel Mode隧道模式Error!错误！Bookmark not defined.没有标明页码。Energy Administration Mode能源管理模式Error!错误！Bookmark not defined.没有标明页码。Exterior Power Supply外部电力供应Error!错误！Bookmark not defined.没有标明页码。4 Mounting and Starting the System4 系统装配和启动Shipping and Storage航运和储存Transportation / Shipping运输/航运Storage储存Mounting 装配Accessories to Be Used使用的配件HVAC Package Unit Mounting ProcedureHVAC单元包装配程序Mixing Boxes Mounting Procedure混合箱装配程序Exhaust Unit Mounting Procedure排气单位装配程序Auxiliary Heaters Mounting Procedure辅助加热器装配程序Lounge Reheater Mounting Procedure休闲室再热器装配程序Pressure Waves Protection System Mounting Procedure压力波保护系统装配程序Starting the Unit单位启动4.3.1 HVAC Package Unit Functional Check4.3.1 HVAC 单位包功能检查Maintenance维护Maintenance Tasks维护任务Maintenance Schedule维护计划Inspection Tasks检查任务General Maintenance Information一般维护信息Fault Finding and Repairing 故障发现和修理Fault Finding故障发现Removal, Revision and Installation移动，改装和安装Reparation修理Cleaning the System系统清洁Testing the Operation of the Components of the HVAC SystemHVAC系统零件运行测试List of Illustrations插图目录Page页码Figure 1-1图 11Schematic Diagram of the Refrigerant Circuit in the Package HVAC UnitHVAC单元包制冷剂循环回路示意图Figure 2-1图 21Package HVAC UnitHVAC单元包Figure 2-2图 22Main Components in the HVAC UnitHVAC单元主要部件Figure 2-3图 23Refrigeration Compressor制冷压缩机器Figure 2-4图 24Dehydrator Filter脱水过滤器Figure 2-5图 25Sight Glass / Moisture Indicator观察镜/湿度指示器Figure 2-6图 26Thermostatic Expansion Valve阀门Figure 2-7图 27Left Side Mixing Box (End Cars EC01 and EC08)左边混合箱（尾车EC01和EC08）Figure 2-8图 28Right Side Mixing Box (End Cars EC01 and EC08)右边混合箱（尾车EC01和EC08）Figure 2-9图 29Left Side Mixing Box (Intermediate Cars TC02 through TC07)左边混合箱（中间车箱TC02到TC07）Figure 2-10图 210Right Side Mixing Box (Intermediate Cars TC02 through TC07)右边混合箱（中间车箱TC02到TC07）Figure 2-11图 211Exhaust Unit for all Cars所有车箱排气单位Figure 2-12图 212Vestibule Heater 1000W门廊加热器 1000WFigure 2-13图 213Temperature Sensors温度传感器Figure 2-14图 214Pressure Waves Protection System - Schematic Diagram压力波保护系统示意图Figure 2-15图 215Right Side Fresh Air Inlet Pneumatic Damper - Cars TC02 through TC07右边新鲜空气气动风门车厢 TC02到TC07Figure 2-16图 216Left Side Fresh Air Inlet Pneumatic Damper - Cars TC02 through TC07左边新鲜空气气动风门车厢 TC02到TC07Figure 2-17图 217Right Side Fresh Air Inlet Pneumatic Damper - Cars EC01 and EC08右边新鲜空气气动风门车厢 EC01到EC08Figure 2-18图 218Left Side Fresh Air Inlet Pneumatic Damper - Cars EC01 and EC08左边新鲜空气气动风门车厢 EC01到EC08Figure 2-19图 219Air Distribution Damper配气阀Figure 2-20图 220Typical Reheater标准再热器Figure 2-21图 221Lounge Air Damper Cars EC01 and EC08休闲室配气阀车厢EC01和EC08Figure 3-1图 31Frost Protection Mode防冻模式Figure 3-2图 32Over-Temperature Protection Mode超温防护模式Figure 3-3图 33Temperature Set Point Graphic温度设定值图解Figure 3-4图 34Refrigeration Circuits Operation制冷回路运行Figure 3-5图 35Low Pressure Management低压管理Figure 4-1图 41Mounting and Dismounting the Package HVAC Unit HVAC单元装配和拆卸 Error!错误！Bookmark not defined.没有标明页码。Figure 4-2图 42Passenger Area Pneumatic Diagram Intermediate Cars (TC02 to TC07)旅客车厢范围气动风门 中间车厢（TC02到TC07）Figure 4-3图 43Passenger Area Pneumatic Diagram End Cars (EC01and EC08)旅客范围气动风门 尾车（EC01和EC08）Figure 4-4图 44Disassembly and Assembly of Bearings轴承的拆卸和装配Figure 4-5图 45Brazing / Unsoldering Dehydrator Filter脱水过滤器的铜焊和焊开Figure 4-6图 46Disassembly/Assembly of Liquid Line Solenoid Valves液体管线螺线管阀门拆卸/装配Figure 4-7图 47Removal/Installation of the Bypass Valve Solenoid Coil拆卸/安装旁通阀螺线管Figure 4-8图 48Pipe Welding导管焊接Figure 4-9图 49Charging Manifold System充装歧管系统List of Tables表格目录Table 1-1表 11Passenger Saloon HVAC System Components旅客车厢HVAC系统部件Table 2-1表 21Auxiliary Heaters per Car Type各车型辅助加热器Table 3-1表 31HVAC Working Status in Frost Protection Mode防冻模式下的HVAC工作状态Table 3-2表 32HVAC Working Status in Over-Temperature Protection Mode超温模式下的HVAC工作状态Table 3-3表 33Saloon HVAC System Components Running depending on the Operating Mode操作模式下旅客车厢HVAC系统零件运行Table 3-4表 34Cabin HVAC System Components Running depending on the Operating Mode操作模式下客舱HVAC系统零件运行Table 3-5表 35Traction Master Control depending on the MVB signals依靠MVB信号的牵引主制Error!错误！Bookmark not defined.没有标明页码。Table 4-1表 41Preventive Maintenance Regularity预防性定期维修Table 4-2表 42Auxiliary Heaters Power Consumption Values辅助加热器输入功率值Table 4-3表 43Pressure Settings for the Pressure Cut-out Switches压力关闭转换的压力设置Table 4-4表 44Pressure-Voltage Curve for the Pressure Transducers压力变换器的压力体积曲线Table 4-5表 45NTC Thermistor Temperature Resistance RelationshipNTC电热调节器 温度抗性关系(Type K3DX PH008).（型号K3DX PH008）1 Function1 功能The HVAC System designed for conditioning the passenger saloons of the CRH3 Project provides the necessary elements to perform successfully in the ventilation, heating and cooling functions, using the alternative refrigerant R-134a.HVAC系统是为CRH3项目的旅客车厢环境设计，提供必要元件以执行通风，制热和制冷功能，使用可替换制冷剂R134a。This HVAC system for passenger saloons installed in each trainset consists of the basic components indicated the Table 1-1 below.旅客车厢的HVAC系统安装在每个车组里，由下面表11列出的基础零件组成。Components零件Package HVAC UnitHVAC单元包Mixing Box混合箱Exhaust Unit排气单位Emergency Inverter紧急反用换流器Vestibule Fan Heater 1000W门廊风扇加热器 1000WControl Panel控制面板Temperature Sensors温度传感器Pressure Wave Sensor压力波传感器Fresh air grill with pressure waves protection压力波保护新鲜空气栅格Table 1-1. Passenger Saloon HVAC System Components The system works in the following way: 表格1-1.旅客车厢HVAC 系统元件 系统以下列方式工作： The fresh air is taken from the exterior through two fresh air grills located, each one, in both carbody walls.新鲜空气经过外部二个新鲜空气栅格，每个空气栅格在车体两侧。The return air is mainly taken from the return air grill located in the ceiling at the vestibule.回流空气主要通过位于门廊天花板的空气栅格。Both return and fresh air are mixed in the two mixing boxes, both located between the fresh air grill and the side of the HVAC unit.回流空气和新鲜空气在二个混合箱中混合，这两个混合箱位于新鲜空气栅格和HVAC单元侧面之间。混合空气由两边进入HVAC单元，在内部通过蒸发器盘管和电加热器处理，制冷剂气体膨胀制冷或经过电阻器加热。经过供气管系进入旅客车厢的处理空气会受到控制。Mark标记11223344556677889 10 11 12 13 14 159101112131415Description描述Units单位Mark标记Description描述Units单位0Compressor压缩机Safety thermostat (auto. Reset)安全恒温器(自动重置)Condenser coil冷凝盘管Condenser motor fan电容式电动机风扇Sight glass and moisture indicator观察镜和湿度指示器Suction line vibration absorber吸入管线振动吸收器Dehydrator filter脱水过滤器Solenoid by-pass valve螺线管旁通阀7/8” service valve7/8”检修阀Purge valve (3/8”)清洗阀(3/8”)3/8” service valve3/8”检修阀Safety refrigerant valve安全制冷阀High pressure transducer高压传感器Safety thermostat (manual reset)安全恒温器(手动复位)Low pressure transducer低压传感器Heat exchanger热交换器低压安全断路器Evaporator motor fan蒸发器电机风扇High pressure safety cout-out高压安全断路器Air-flow detector switch空气-流动检测开关卸出线振动吸收器Ice detector switch冰检测器Evaporator coil蒸发器盘管Crankcase heater曲轴箱加热器Air heater空气加热器Low pressure service valve低压检修阀Expansion valve膨胀阀高压检修阀Liquid line solenoid valve液相线螺线管操纵阀After passing the sight glass / moisture indicator, the refrigerant circulates on to the liquid line solenoid valve (15).通过观察镜/湿度指示器后，制冷剂循环到液相线螺线管操纵阀。This valve is microprocessor activated to control the flow of refrigerant through the evaporator coil circuits这个阀门是用微处理器激活以控制经过蒸发器盘管回路的制冷剂的流动。The liquid output of the liquid line solenoid valve is routed to the associated evaporator coil (12) through the thermostatic expansion valve (14).液相线螺线管操纵阀液体流量以联接蒸发器盘管到热膨胀阀的路线。The expansion valve has a double purpose:膨胀阀有双重的作用：Reducing the refrigerant pressure to the required values in order to make possible the transition phase (evaporation) in the evaporator coil.减少制冷剂压力以达到在蒸发器盘管中可能出现过渡相(蒸发)的待定值。Regulating the refrigerant to a suitable flow rate that cools the air coming from the saloon and which circulates through this evaporator coil.调节制冷剂以适当的流速冷却从旅客车厢来的空气，经过蒸发器盘管循环。The expansion valve distributes the refrigerant through the thin tubes of the distributor located in the evaporator coil (12).膨胀阀分配经过位于蒸发器盘管（12）分配器薄壁管的制冷剂。These tubes ensure an even distribution of the refrigerant in the evaporator coil. The evaporator coil is a heat exchanger built with copper pipes connected with aluminum fins.此管保证制冷剂在蒸发器盘管均匀分布。蒸发器盘管是与铝肋片联接的铜管组成的热交换器。The regulation of the amount of refrigerant coming into the coil via the expansion valve results in a quick reduction in the pressure of the refrigerant, which by evaporating, cools the tubes and fins, and with them, the air around them. Two evaporators motor fans (24) blow this air into the saloon through the ducting set.进入盘管里的制冷剂量的经由膨胀阀调整，使制冷剂的压力迅速降低，经过蒸发，冷却管和散热片及其周围空气。两个蒸发器电扇（24）吹动此空气通过管道进入旅客车厢。Cold gases go out of the evaporator at low pressure through the suction line and enter it is then routed through the heat exchanger (23) to the compressor (1).冷气以低压离开蒸发器通过吸入管线，然后经过热交换器(23)到压缩机(1)。The heat exchanger is intended to transfer heat between liquid refrigerant leaving the condenser on the high pressure side of the system and refrigerant vapor leaving the evaporator on the low side.热交换器是用来传递液体制冷剂从系统高压侧离开冷凝器和气态制冷剂从低压侧离开蒸发器之间的热。The compressor suction and discharge lines have been provided with vibration eliminators (11 and 18 respectively) in order to reduce noise and vibration transmission along the hard piping system.压缩机的吸气和排出管线带有振动消除器(11和18分别的)，以减少噪音和振动沿着硬管线系统的传递。The high (29) and low (28) pressure service valves make possible to connect gauges to verify the working pressures of the HVAC system, and they are also useful to carry out maintenance operations such as purging, vacuuming and charging the refrigerant in the circuit.高压检修阀(29)和低压检修阀(28)可以连接量表以校验HVAC 系统的工作压力，也用来执行维修工作比如回路里的清洗，真空吸尘和制冷剂充装。Two pressure-activated switches (9 & 10) and two pressure transducers (6 & 7) are incorporated in the compression process of the refrigeration cycle.