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1、1YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.风冷热泵机组关键部件风冷热泵机组关键部件2YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.AWHCLAWHCL关键部件关键部件-命名命名AWHCLHE20050PD额定制冷量（TR）制热水空气启动方式Y=星三角式P=部分绕组式设计系列制冷低温高效50=380400-3-503YORKProductionSystemAllrightsReservedCo
2、pyright1999byYorkInternationalInc.AWHC是如何工作的？AWHCLAWHCL关键部件关键部件4YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.热膨胀阀高压蒸气低压液体低压蒸气高压液体制冷方式热交换器空气侧换热盘管四通阀气液分离器TEV热膨胀阀NRV单向阀SV5YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.高压蒸气低压液体低压蒸气高压液体制冷方式热交换器空气侧换热盘管
3、四通阀气液分离器TEV热膨胀阀NRV单向阀SV热膨胀阀6YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.高压蒸气低压液体低压蒸气高压液体制冷方式热交换器空气侧换热盘管四通阀气液分离器TEV热膨胀阀热膨胀阀NRV单向阀SV7YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.高压蒸气低压液体低压蒸气高压液体制冷方式热交换器空气侧换热盘管四通阀气液分离器TEV热膨胀阀热膨胀阀NRV单向阀SV8YORKProd
4、uctionSystemAllrightsReservedCopyright1999byYorkInternationalInc.高压蒸气低压液体低压蒸气高压液体制冷方式热交换器空气侧换热盘管四通阀气液分离器TEV热膨胀阀NRV单向阀SV热膨胀阀9YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.高压蒸气低压液体低压蒸气高压液体热交换器空气侧换热盘管四通阀气液分离器TEV热膨胀阀NRV单向阀SV热泵方式热膨胀阀10YORKProductionSystemAllrightsReservedCopyri
5、ght1999byYorkInternationalInc.高压蒸气低压液体低压蒸气高压液体热交换器空气侧换热盘管四通阀气液分离器TEV热膨胀阀NRV单向阀SV热泵方式热膨胀阀11YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.高压蒸气低压液体低压蒸气高压液体热交换器空气侧换热盘管四通阀气液分离器TEV热膨胀阀NRV单向阀SV热泵方式热膨胀阀12YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.高压蒸气
6、低压液体低压蒸气高压液体热交换器空气侧换热盘管四通阀气液分离器TEV热膨胀阀NRV单向阀SV热泵方式热膨胀阀13YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.高压蒸气低压液体低压蒸气高压液体热交换器空气侧换热盘管四通阀气液分离器TEV热膨胀阀NRV单向阀SV热泵方式热膨胀阀14YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.绘图练习15YORKProductionSystemAllrightsRes
7、ervedCopyright1999byYorkInternationalInc.AWHCLAWHCL关键部件关键部件压缩机风冷翅片式热交换器壳管式热交换器四通换向阀、热力膨胀阀气液分离器风机等16YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.AWHCLAWHCL关键部件关键部件-压缩机压缩机制冷系统的“心脏”，将低温低压的制冷剂气体压缩成高温高压的制冷剂气体。AWHC采用半封闭往复式压缩机，多级容量控制，电机为回气冷却式电机。17YORKProductionSystemAllrightsRes
8、ervedCopyright1999byYorkInternationalInc.容积式压缩机容积式压缩机是利用活塞或其他元件来减小压缩腔内制冷剂蒸汽的体积来工作的。过程：消耗电能。压缩腔容积减小。制冷剂压力提高。18YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.容积式压缩机种类涡旋式压缩机往复式压缩机螺杆式压缩机19YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.往复式压缩机10-130冷吨从轻工
9、业到重工业应用广泛工作原理与汽车发动机相似技术成熟(从1890s-制冰机开始).York(ZJRF)20YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.约克往复式冷水机组水冷往复式冷水机组YCWYCR风冷往复式冷水机组YCAAWHCL21YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.全封往复式压缩机1-20冷吨用于商业建筑或家用设施与汽车发动机工作原理类似22YORKProductionSystem
10、AllrightsReservedCopyright1999byYorkInternationalInc.往复式压缩机吸气23YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.往复式压缩机吸气阀关闭24YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.往复式压缩机压缩制冷剂25YORKProductionSystemAllrightsReservedCopyright1999byYorkInternati
11、onalInc.往复式压缩机排气26YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.压缩循环压力容积图汽缸容积(cu-in)汽缸压力(psia)1020304010015020025030035050吸气90.7psia吸气压缩排气311.5psia排气膨胀27YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.容积式压缩机半封闭式压缩机电机和压缩机封在同一个压缩机壳内压缩机壳体采用螺栓连接，维修方便电机
12、线圈采用制冷剂蒸汽冷却优点:成本低，无需考虑泄漏问题缺点:万一电机烧毁会污染整个制冷系统28YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.YORK往复式压缩机StyleJ压缩机50-120冷吨(R-22)半封闭式46andor8缸风冷-YCAJAWHCL水冷-YCWJ29YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.往复式压缩机关键部件壳体曲轴轴承连杆和活塞吸、排气阀片吸、排气维修隔断阀齿轮式可逆
13、油泵能量卸载装置半封闭式电机30YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.JJ压缩机压缩机31YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.往复式压缩机曲轴和轴承活塞电机壳体吸气过滤器吸气截止阀接线盒电机线圈缸盖排气阀片油泵视镜YORKJ压缩机32YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.往
14、复式压缩机YORKJ压缩机连杆活塞组件33YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.往复式压缩机活塞销连杆活塞环弹簧锁活塞34YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.往复式压缩机活塞顶部做成锥形，是为了适应气阀组的结构，达到减少余隙容积的目的。活塞环有气环和油环两种。气环的作用是密封气缸的工作容积，防止压缩气体通过气缸壁处间隙泄漏到曲轴箱。油环的作用是刮下附着于气缸壁上多余的润滑油，并使
15、壁面上油膜分布均匀。35YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.往复式压缩机排气弹簧缸套和吸、排气阀组件36YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.压缩机保护高排气压力保护:确保系统工作压力不超过最高工作压力极限切断保护-机械(主要):405psig(ac)270psig(wc)-软件(供选备件):可编程式内置泄压阀(375psid“压差”)低吸气压力保护:确保系统不在低压力或不合适得
16、制冷剂流量下运行(可编程).油压切断保护:确保压缩机的机械部件得到充分润滑(25psid:吸、排气压力差)高温切断保护:3个内置的热敏电阻，运行最高温度限制为105C电机电流感应器:输入电流的过高、过低保护37YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.耐压试验标准ASHRAEStandard23ARIStandard520JandZ压缩机壳体耐压试验低压侧720psig高压测2250psigU.L.Standard465淋雨试验U.L.最大电流连续运行试验38YORKProductionSystemAllrightsReservedCopyright1999byYorkInternationalInc.产品试验压力试验450psig高压侧330psig低压侧泄漏试验225psig空气水下空车运转油压功耗标准排气量卸载正反转285psig制
