丹佛斯压缩机选型

关于汽车空调的选型计算（二）来源：中国论文下载中心 [ 09-09-14 15:40:00 ] 作者：未知编辑：studa090420目前已知进口干度为0.3，出口过热，因此平均干度χdo=（0.3+1.0）/2=0.65由此，可计算其余参数的平均值。

动力黏度μcore的平均值为μcore=[χ/μr+（1-χ）/μ1]-1=[0.65/11.446+（1-0.65）/266.78] -1=17.212 kg/（m·s）每一散热板制冷剂质量流量qmr,eq'= qmr/11=0.042/11=3.8182×10-3 kg/s散热板内孔的制冷剂质量流速qmr,A为qmr,A= qmr,eq'/（1/4·π·D2h，r）=0.0038182/[3.1416/4×（3.7265×10-3）2] kg/（m2·s）= 350.077kg/（m2·s）雷诺数Recore为Recore= qmr,A·Dh，r/μcore=350.077×3.7265×10-3/（17.212×10-6）=75794干度平均值为χdo=0.49+627 Recore-0.83=0.49+627×75794-0.83=0.54587由上面的计算可以看到，制冷剂干度从0.3～0.54587～1变化，后还有过热蒸气区。

因此很难准确估计每一阶段所占的百分比，只能凭经验估计。

在此，取过热蒸气区为20%，于是可以计算出干燥点之前的两相区约为28%，干燥点之后的两相区约占52%。

（1）干燥点之前的两相区，取χ=0.417，则在散热板内孔内，制冷剂气液两相均匀紊流工况的Lockhart-Martinelli数Xtt和关联系数F（Xtt）分别为Xtt =[（1-χ）/χ]1-W/2（ρl/ρv）0.5（μv/μl）n/2=[（1-0.417）/0.417]1-0.3/2（1285.86/15.712）0.5（11.446/266.78）0.3/2=7.5F（Xtt）=（1+2.30/ Xtt2）0.374=（1+2.30/7.5）0.374=1.0151制冷剂两相流折算成全液相时，在折算流速下的表面传热系数αl为αL=A[qmr，A（1-χ）Dh/μl]-hqmr，A（1-χ）cP1= 0.341[350.077（1-0.417）3.7265×10-3/266.78×10-6]-0.3×350.07×（1-0.417）13532.2 W/（m2·s）= 7966.028 W/（m2·s）制冷剂两相流的表面传热系数αr为αr=αLPRl0.296F（Xtt）=7966.028×3.9680.296×1.0151 W/（m2·s）=12160（2）过热区制冷剂侧的雷诺数Reeq，r，普朗特数Prv，努塞尔数Nu，表面传热系数av分别为Reeq，r= （qmr，ADh，r）/μv=（350.077×3.7265×10-3）/（11.446×10-6）=113950Prv=0.8471av=（Nu×λv）/Dh，r=（50722×12.034×10-3）W/（m3·k）=1638 W/（m3·k）（3）干燥点之后的两相区取χ=0.766，则把Xd0=0.5458带入干燥点之前的两相换热公式，计算得ad0=11165 W/（m2·s），于是ar为ar=av+{1-[（X-Xd0）/（1-Xd0）]1.5}×（ad0-av）= 1638+{1-[（0.766-0.54587）/（1-0.54587）]1.5}×（11165-1638）W/（m3·k）=7950 W/（m3·k）最后，平均表面传热系数可为ār =（12160×28%+7950×52%+1638×20%）W/（m3·k）=7866 W/（m3·k）5.3.7计算总传热系数及传热面积如忽略管壁热阻及接触热阻，忽略制冷剂侧污垢热阻取空气侧污垢热阻ra=0.0003（m3·k）/W，则传热系数k为k=1/[（1/ār）Aa/Ar+ra+1/aeq，a]= 1/[（1/7866）0.706555/0.113+0.0003+ 1/323.3] W/（m3·k）=238.777 W/（m3·k）对于对数平均温差为∆ tm=（Tal-Ta2）/ln{（Ta1-Te）/（Ta2-Te）}=（27-7.25）/ ln{（27-2）/（7.25-2）}℃=12.655℃由于板翅式蒸发器的流程较少，而且在流道转弯处制冷剂与空气成顺流流动形式，因此按纯逆流方式计算的对数平均温差偏大。

I N D U S T R I A L C O N T R O L SMBT 5250/5260Data sheetIC.PD.P30.I1.02- 520B1912Temperature sensorstypes MBT 5250, 5260 and 5252Features• For temperature measurement and regula- tion in piping systems and refrigeration plants on ships – or points where reliable, robust and accurate equipment is required• Gaseous or liquid media, e.g. air, gas, vapour, water or oil.• Up to +200°C media temperatures • Pt100 or Pt1000 resistance element• Can be used with 2- or 3-wire connections • Gold plated male and female connector• MBT 5250 with interchangeable measuring insert• MBT 5260 with fixed measuring insert • Approvals- Lloyds Register of Shipping, LR - Germanischer Lloyd, GL - Bureau Veritas, BV- Det Norske Veritas, DNV - Nippon Kaiji Kyokai, ClassNK - Registro Italiano Navale, RINA - American Bureau of Shipping, ABS- Korean Register of Shipping, KRS• Measuring range: –50 to +200°C • Resistance value: 1 × Pt100• Protection tube: Ø8 × 1 mm, W. No.1.4571 (AISI 316 Ti)Ordering MBT 5250standard programmeMeasuring insert for MBT 5250Other specifications on request• Extension length: None• Tolerance: EN 60751, Class Bt 0.5t 0.9t 0.5t 0.99 s 33 s 95 s 310 s 3 s 10 s 90 s 300 s 12 s 42 s 111 s 391 s 4 s 14 s 96 s 323 s 12 s 36 s 220 s 900 s 5 s 15 s 210 s 850 s 2 s 6 s 82 s 260 s 4 s13 s225 s850 s2IC.PD.P30.I1.02- 520B1912Data sheet Temperature sensors, types MBT 5250, 5260 and 5252Technical data Protection tube in contact with media W.no. 1.4571 (AISI 316 Ti)Process connection W.no. 1.4571 (AISI 316 Ti)Extension length W.no. 1.4571 (AISI 316 Ti)Union Nickel plated brass Gasket SiliconePlug DIN 43650PA 6.6 (max 125°C)1) The sensors are supplied without heat conductive compoundSensor toleranceEN 60751 Class B: ± (0.3 + 0.005 × t)t = temperature of medium, numerical value1/3 EN 60751 Class B: ± (0.1 + 0.005 × t)1/6 EN 60751 Class B: ± (0.05 + 0.005 × t)Vibration stability Shock: 100 g in 6 msVibrations: 4g sine function 5 - 200 Hz, measured acc. to IEC 68-2-6EnclosureIP 65 according to IEC 529Cable entry DIN 43650PG 9, PG 11 or PG 13.5Mechanical and environmental specifications• Measuring range: –50 to +200°C • Resistance value: 1 × Pt100• Protection tube: Ø8 × 1 mm, W. No. 1.4571 (AISI 316 Ti)Ordering MBT 5260 Standard programme• Extension length: None• Tolerance: EN 60751, Class BOther specifications on requestElectrical connections2-wire, 3 terminals(Ground not connected)Response timesTypeProtection tubeIndicative response timesaccording to VDI/VDE 3522Water 0.2 m/s Air 1 m/sMBT 5250 with interchangeable measuring insertØ8 × 1 mmØ8 × 1 mm, filled with heat conductive compound 1)Ø10 × 2 mmØ10 × 2 mm, filled with heat conductive compound1)Solid drilledSolid drilled, filled with heat conductive compound 1)MBT 5260 with fixed meas. ins.Ø8 × 1 mm Solid drilledMaterialsIC.PD.P30.I1.02- 520B19123 Data sheet Temperature sensors, types MBT 5250, 5260 and 5252Technical dataProcess connection Width across flatsG 1/4 A HEX 22G 1/2 A, 1/2 - 14 NPT, M18 × 1.5, G3/8 AHEX 27M24 × 2, G 3/4 AHEX 32Without extension lengthWith extension lengthSolid drilled with extension lengthA = Extension lengthB = Insertion lengthC = Protection tubeD = Process connection 1)E = UnionGasketPlugsPG 13.5All dimensions in millimeters1)PG 9, PG 11Please note:• Tightening torque for the mounting screw at the rear endof the electrical connection plug: 25 Ncm• Tightening torque for the union(position “E”): 17 NmMax. temperature (Ext. length “None”)Plug DIN 43650Tm= Media temperatureTp= Temperature for electric plugTA= Ambient temperatureNote: for extension length = 50 mmno limitations up to 200 °C mediatemperature and 90 °C ambienttemperatureMax. load on protection tube (Ø8 × 1,Ø10 x 2) acc. to DIN 43763Permissiblemedia velocityAir 25 m/sWater 3 m/sProcessconnectionG 1/4 A – G 1/2 AG 3/8 A – M18G 3/4 AM24Max. tighteningtorque50 Nm100 NmL = Insertion length Dimensions1) 2) 3)4IC.PD.P30.I1.02- 520B1912Data sheet Temperature sensors, types MBT 5250, 5260 and 5252Features and application MBT 5252• For measuring and regulating temperature in piping systems and refrigeration plant on ships - or at all points where reliable, robust and accurate equipment is required• Gaseous or liquid media, e.g. air, gas, vapour, water or oil• Up to +400°C media temperatures • Pt100/ Pt1000 resistance element • Available with built-in transmitter • Approvals- Lloyds Register of Shipping, LR - Germanischer Lloyd, GL - Bureau Veritas, BV- Det Norske Veritas, DNV - Nippon Kaiji Kyokai, ClassNK - Registro Italiano Navale, RINA - American Bureau of Shipping, ABS - Korean Register of Shipping, KRSDimensionsAll dimensions in millimetersProcess connection Width across flats G 1/2 A, ½-14 NPT HEX 27G 3/4 AHEX 321) MBT 5252 Measuring insert type MBT 1522) with terminal block3) with temperature transmitterG ½A G 3/4 A ½-14 NPT 50 084Z8210084Z8230084Z616580084Z6140084Z6164084Z6166100 084Z82111)084Z82311)084Z61671)150084Z82121)084Z82321)084Z61681)200084Z82131)084Z82331)084Z61691)250084Z6139084Z6141084Z617050084Z8214084Z8234084Z617180084Z6142084Z6144084Z6172100084Z82151)084Z82351)084Z61731)150084Z82161)084Z82361)084Z61741)200084Z82171)084Z82371)084Z61751)250084Z6143084Z6145084Z6176IC.PD.P30.I1.02- 520B19125Data sheet Temperature sensors, types MBT 5250, 5260 and 5252Ordering MBT 5252Standard programme• Extension length: 50 mm• Element: Pt 100, EN 60751, Class B • Connection head: B-head• Protection tube: Low temperature range: Ø10 x 2 mm High temperature range: Ø11 x 1 mmTemperature range [°C]Insertion length [mm]ConnectionTransmitter output Transmitter settingProcess connection Code no.Code no.Code no.−50 to 2002-wire, 3 termi-nalsNone None2-wire4 - 20 mA, standard0 to +100°C1)Preferred versions400° C version is available on requestElectrical connectionWithout temperature transmitter 2 x Pt100With temperature transmitterWithout temperature transmitter1 x Pt100G 1/2 A G 3/4 A½-14 NPT50430480430100460510460150490540490200520570520250550600550500->+100°C420470420100450500450150480530480200510560510250540590540Ø 8 × 1, Ø 10 × 2Ø 11 × 1, Ø 15 × 36 IC.PD.P30.I1.02- 520B1912 Data sheet Temperature sensors, types MBT 5250, 5260 and 5252WeightInsertion length[mm]ElectricalconnectionTransmittersettingProcess connectionWeight [g]Weight [g]Weight [g]2-wire,3 terminalsSensors arewithout trans-mitter4 - 20 mA,2-wire universaltemperaturetransmitterProtection tubeØ 10 × 2Max. tightening torque G 1/4 - M1850 NmPermissiblemedia velocityAir25 m/sSteam25 m/sWater 3 m/sMax. load on protection tube according to DIN 43763L = Insertion lenghtMaterialsProtection tube in contact with media W. no. 1.4571 (AISI 316 Ti)Process connection in contact with media W. no. 1.4571 (AISI 316 Ti)Extension length W. no. 1.4571 (AISI 316 Ti)Union nut Nickel plated brassConnection head Die cast aluminiumMax. temperature 1)Ambient: 90°C for sensors without temperature transmitterTransmitter: 85°C for sensors with temperature transmitterSensor toleranceEN 60751 Class B: ± (0.3 + 0.005 × t)1/3 EN 60751 Class B: ±(0.1 + 0.005 × t)1/6 EN 60751 Class B: ±(0.05 + 0.005 × t)t = temperature of medium,numerical valueVibration stabilityShock: 100 g in 6 msVibrations: 4g sine function 2 - 100 Hz, measured acc. to IEC 68-2-6Enclosure IP 65 according to IEC 529Cable entry B-head/screw-cap PG 16Cable entry BM PG 9Temperature transmitterMBT 9110Supply voltage: 8 - 35V d.c.Output: 4 - 20 mAMechanical and environmental specifications1)The temperature of the temperature transmitter is influenced by media temperature, ambient temperature and ventila-tion in the engine room. If the temperature of the temperature transmitter exceeds the max. allowed temperature thetemperature transmitter must be placed in a separated enclosure, as described in the separate data sheet for MBT 9110. Technical dataIC.PD.P30.I1.02- 520B1912Data sheet Temperature sensors, types MBT 5250, 5260 and 5252Danfoss offers a complete range of MBT tem-perature sensors for all types of applications. The range consists of exhaust gas sensors, universal sensors, bearing sensors, cargo sensors, stern tube sensors as well as general purpose sensors. MBT programme• Fixed or replaceable measuring insert • Pt100, Pt1000 resistance element or thermocouple• Wide temperature range- up to +800°C with thermocouple- up to +600°C with resistance elementGeneral featuresFurther information about our temperature sensors type MBT can be found in separate data sheets, which can be ordered by contacting your local Danfoss representative.Further information® D a n f o s s A /S 08-2004 I C -htData sheetTemperature sensors, types MBT 5250, 5260, 5252IC.PD.P30.I1.02- 520B1912。

艾赛尔空调型号识别：IM**U2A
IM ——M 系列 **——名义制冷量
U ——室内送风方式（U ：上送风 F: 下送风） 2——压缩机数量（1：一台压机 2：两台压机） A ——冷凝方式（A ：风冷 W ：水冷 C ：冷冻水机组）
2010-9-242
3.机组型号说明
S
W
S
B
30
A
D
D ：下送风F ：上送风
A ：风冷系列W ：水冷系列C ：冷冻水系列
30：名义制冷量30kw 35/35:名义制冷量70KW
B=电压380-420/3/50E=220/3/60H=460/3/60I=380/3/60
S ：直接膨胀式机组
W ：不附带冷冻水盘管E ：附带冷冻水盘管X ：冷冻水系列机组
S ：标准控制器G ：图形控制器
谷轮压缩机型号辨识
ZR(T/H/D)36K3/C/F/H(E)-PFJ/TWD-522 ZR 全封涡旋+空调； ZF 全封涡旋+低温
CR 全封活塞+空调； VR 新型全封涡旋，仅用于中国
T/H/D-并联机组/卧式/数码
36K或12M-制冷量36//12=3HP 120/12=10PH E-可使用新工艺制冷剂，无E只能用R22 PFJ-单相，内置保护，220V/50HZ
TWD-三相，模块保护，380V/50HZ
性能参数
ZR系列压缩机技术参数。

丹佛斯压缩机选型丹佛斯压缩机是丹佛斯工业集团旗下一重要产品，它在德国、斯洛文尼亚和墨西哥设有三家工厂，生产家用冰箱、商用冷柜、空调用小型制冷压缩机，功率范围从1/0HP-2HP，使用R12，R22，R502，R134a、R404A、R600a等制冷剂。

丹佛斯压缩机目前被广泛应用于冷冻、冷藏陈列柜，自动贩售机，车船用冷藏，家用、商用冰箱，制冷机，除湿机，低温实验设备以及专用低温设备等。

丹佛斯压缩机特点：——黑色的丹佛斯压缩机以其体积小、重量轻、噪音低、效率高、寿命长而享誉世界制冷行业，尤其是丹佛斯压缩机的抵噪音设计，高效率和节能的象征。

1、丹佛斯压缩机使用高能效比的旋转式压缩机及电机（日本技术），省电10%以上。

2、丹佛斯压缩机卧式系列可获得最大的有效容积。

3、丹佛斯压缩机优化设计结构紧凑可直接安装于设备内部，减少安装费用省时省力。

4、丹佛斯压缩机应用范围广。

5、丹佛斯压缩机充实的功能部件与保护装置，噪音低、安全可靠。

SC 104L2674 SC12C 385W 12.87 SC 104L2848 SC15CM 495W 15.28 SC 104L2120 SC18CM 495W 17.69 SC 104L4079 SC15/15CM 2×495W 2×15.28 SC 104L4081 SC18/18CM 2×495W 2×17.69 SC 104L2529 SC10D 385W 10.29 SC 104L2694 SC12D 470W 12.87NL 105G6660 NL6.1MF 6.13 NL 105G6772 NL7.3MF 270W 7.27 NL 105G6879 NL8.4MF 292W 8.35 NL 105G6885 NL10MF 320W 10.1PL 101G0251 PL35GTL 102G4350 TL3G 95W 3.13TL 102G4452 TL4G 110W 3.86TL 102G4450 TL5G 140W 5.08 FR 103G6660 FR6G 150W 6.23 FR 103G6680 FR7.5G 175W 6.93 FR 103G6780 FR8.5G 215W 7.95 FR 103G6880 FR10G 275W 9.05FR 103G6980 FR11G 275W 11.15 SC 104G8000 SC10G 250W 10.29 SC 104G8240 SC12G 315W 12.87 SC 104G8520 SC15G 385W 15.28 SC 104G8820 SC18G 495W 17.69 SC 104G8140 SC21G 550W 20.95TL 102U2071 TL4CLFR 103U2670 FR6CL 215W 6.23 FR 103U2790 FR7.5CL 235W 6.93 FR 103U2890 FR8.5CL 275W 7.95 NL 105F3710 NL7CLX 235W 7.27 SC 104L2523 SC10CL 315W 10.29 SC 104L2623 SC12CL 385W 12.87 SC 104L2697 SC12CLX.2SC 104L2853 SC15CL 495W 15.28 SC 104L2854 SC15CLXSC 104L2897 SC15CLX.2SC 104L2123 SC18CL 495W 17.69 SC 104L2197 SC18LX.2SC 104L2195 SC18LX.2SC 104L2322 SC21CL 590W 20.95 SC 104L2506 SC10MLX 470W 10.29 SC 104L2606 SC12MLX 12.87 SC 104L2869 SC15MLX 15.28 SC 104L2139 SC18MLX 17.68 FR 103U2680 FR6DL 275W 6.23 SC 104L2525 SC10DL 385W 10.29 SC 104L2625 SC12DL 495W 12.87。

Danfoss丹佛斯百福马压缩机(丹佛斯百福马 HP匹压缩机)优势：丹佛斯MLZ/MLM冷冻涡旋压缩机，采用了独特涡旋设计，且加工工艺机动性强，能够为恶劣的冷冻应用提供高能效的解决方案。

该系列的冷冻涡旋压缩机包含了11个型号的中温我选压缩机，这些涡旋压缩机都是专为商业冷冻应用所设计。

该系列压缩机设计时工程师就考虑到了冷冻应用的特殊性，针对常用供电条件，提供多种制冷剂选择（R404A-R134A-R507-R22），覆盖3.4到21kw（即从2-10HP）的冷量区间。

得益于专门针对冷冻的特殊设计，MLZ/MLM涡旋压缩机具有很多强大的优势，高效电机和优化的涡旋型线，使该系列压缩机在常用工况下能耗更低，并为冷冻应用提供更大的制冷量丹佛斯百福马制冷涡旋压缩机型号名称丹佛斯百福马压缩机 2.5匹MLM019T4LP9丹佛斯百福马压缩机 3匹 MLM021T4LP9丹佛斯百福马压缩机 3.5匹MLM026T4LP9丹佛斯百福马压缩机 4匹MLM030T4LC9丹佛斯百福马压缩机 5匹MLM038T4LC9丹佛斯百福马压缩机 6匹MLM045T4LC9丹佛斯百福马压缩机 7匹MLM048T4LC9丹佛斯百福马压缩机 8匹MLM058T4LC9丹佛斯百福马压缩机 9匹MLM066T4LC9丹佛斯百福马压缩机 10匹MLM076T4LC9丹佛斯百福马压缩机 3匹MLZ021T4LP9丹佛斯百福马压缩机 3.5匹MLZ026T4LP9丹佛斯百福马压缩机 4匹 M LZ030T4LC9丹佛斯百福马压缩机 5匹MLZ038T4LC9丹佛斯百福马压缩机 6匹MLZ045T4LC9丹佛斯百福马压缩机 7匹MLZ045T4LC9丹佛斯百福马压缩机 7.5匹MLZ058T4LC9丹佛斯百福马压缩机 10匹MLZ076T4LC9丹佛斯Danfoss压缩机产品特点：●丹佛斯Danfoss SC系列R134a制冷剂的压缩机是高低蒸发温度通用的压缩机，蒸发温度从+15度到-30度左右，应用范围非常宽广。

丹佛斯FC302变频器选型总结变频器如何选型是我们技术人员和商务报价人员经常遇到的问题。

下面根据工作实际经验给大家总结的一些方法和思路。

首先要考虑的因素包括：品牌，功率，电流，电压，负载（就是电机拖动的设备），应用场合另外还有一些选配件要在选择的时候注意比如控制面板是否单独采购，需要不需要用滤波器，电抗器，制动电阻制动单元等。

一些专业设备要选择专用变频器。

比如注塑机，电梯，纺织一些场合选择专用变频器更好用。

变频器常用功率0. 75KW, 1.5 K肌2.2 K肌3.7 K肌5.5 K肌7.5 K肌11 K肌15 KW, 18. 5 K肌22 K肌37 K肌45 K肌55 K肌75 K肌90 K肌110 K肌132 KW, 160 K肌185 K肌200 K肌220 K肌250 K肌285 K肌312 K肌355 KW 一般变频器型号都是按功率大小进行定义型号的，值得注意的是进口品牌的控制面板都需要单独采购，变频器价格不含控制面板，而国产变频器一般都包含控制面板。

一般来说电机的功率是变频器选择变频器功率的基础。

但是值得注意的是变频器时应以实际电机电流值作为变频器选择的依据，电机的额定功率只能作为参考。

风机水泵应用场合负载较小，一般变频器厂家都有专门的系列变频器。

而一些特殊场合负载大一般都要适当的放大档使用。

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