制冷换热器
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【实验报告1-4】换热器换热性能实验实验目的:1、通过实验,了解不同传热面积、传热流量等因素对换热器的换热性能的影响;2、掌握换热器的使用方法和注意事项;3、了解热力制冷冷水机组换热器的工作原理及性能特点。
实验原理:热力制冷冷水机组换热器是将制冷剂从低温区域吸收热量后,通过空气或水对流将热量传递到环境中,从而实现制冷的过程。
其中,传递热量的部分即为换热器。
换热器的换热性能主要由以下因素影响:1、传热面积:换热器传热面积越大,换热器的传热性能越好;2、传热流量:换热器传热流量越大,换热器的传热性能越好;3、换热介质:换热介质的热传导率越大,换热器的传热性能越好;4、壳体结构:壳体结构越紧密,换热器的传热性能越好;5、流体流速:流体流速越大,换热器的传热性能越好。
实验设备:本实验采用的设备有:1、热力制冷冷水机组换热器;2、流量计、压力表等实验配套设备;3、水、空气等流体介质。
实验步骤:1、按照实验要求设置流量和传热面积;2、开启冷水机组和换热器,保证介质在流动状态;3、测量水、空气介质的压力和流量,记录数据;4、根据记录的数据,计算换热器的传热效率。
实验数据处理:测量完成后,需要对收集到的数据进行处理。
首先,计算出实验中所涉及的有关数据,如传热系数、传热效率等。
其次,对实验结果进行分析,找出影响换热器换热性能的因素,并进行总结。
实验注意事项:1、在使用换热器时,需要事先清洗干净;2、在设定流量和传热面积时,应注意范围不能超过实验设备的最大限度;3、实验过程中,应注意观察实验设备是否正常运行,防止出现故障;4、测量时应精确记录实验数据,避免误差;5、实验完成后,应及时清理实验设备并做好记录。
实验结论:通过实验,我们得到了不同传热面积、传热流量等因素对换热器换热性能的影响。
在实验中,我们发现流量和传热面积是影响换热效率的两个重要因素,其对于换热效率产生的影响较大。
同时,我们也了解了热力制冷冷水机组换热器的工作原理及性能特点。
制冷机组工作原理
制冷机组是一种用于制冷的设备,主要由压缩机、换热器、膨胀阀和冷凝器四个部分组成。
其工作原理如下:
1. 压缩机:制冷机组内的压缩机通过电能或机械能将低压低温的制冷剂压缩成高压高温的气体。
这样做的目的是提高制冷剂的温度和压力,为后续制冷过程提供能量。
2. 换热器:高温高压的制冷剂进入换热器,与外界环境进行热交换。
制冷机组分为蒸发器和冷凝器两个换热器,蒸发器负责吸收室内热量,冷凝器则负责排放室外热量。
3. 膨胀阀:高温高压的制冷剂通过膨胀阀放松至低温低压状态。
膨胀阀起到限制制冷剂流量的作用,使其能够进入下一个换热器,完成制冷循环。
4. 冷凝器:经过膨胀阀放松后的制冷剂进入冷凝器。
在冷凝器中,制冷剂受到外界空气或水的冷却后逐渐转变为高压液体。
这个转化过程释放了大量热量,使得制冷剂能够重新进入压缩机,循环执行制冷任务。
通过以上的工作原理,制冷机组可以将热量从室内移出,实现制冷效果。
制冷机组被广泛应用于空调、冷库和工业冷却等领域。
换热器的种类及应用换热器是一种用于传热的设备,广泛应用于化工、电力、冶金、石油等行业。
根据传热方式和工作原理的不同,换热器可以分为多种类型。
1. 管壳式换热器:管壳式换热器是最常见的换热器之一。
它由管束和外壳组成,热媒通过管束流动,被换热的物质则在外壳中流动,通过管壳内外流体的对流和传导传热,实现换热过程。
管壳式换热器广泛应用于化工、冶金等行业的蒸发、冷凝、汽化、加热等工艺中。
2. 板式换热器:板式换热器采用多层波纹板组成,通过多个波纹板的叠加形成通道,在通道内实现换热。
板式换热器具有换热效率高、紧凑、易于清洗等优点,被广泛应用于空调、制冷、化工、食品加工等领域。
3. 管束式换热器:管束式换热器由多根平行布置的管子组成,通过管子内的热媒与外壳中的被换热物质进行换热。
管束式换热器适用于高温、高压、粘稠液体的换热过程,常用于石油、化工等行业。
4. 螺旋板换热器:螺旋板换热器采用螺旋板作为热传输面,通过螺旋板的内外壁形成两个流通通道,通过流体在螺旋板内外壁之间交替流动,实现换热。
螺旋板换热器具有高换热效率、低压降等优点,广泛应用于化工、制药等行业。
5. 空气冷却器:空气冷却器以空气作为冷却介质,通过与被冷却物质接触,将被冷却物质的热量传递给空气,使其冷却。
空气冷却器广泛应用于电力、化工等行业中的冷却系统,如发电厂中的冷却塔、汽车发动机中的散热器等。
6. 管式加热器:管式加热器是一种通过将热媒加热后传递给被加热物质,实现加热的设备。
管式加热器应用于化工、电力等行业中需要对物质进行加热的工艺中,如石油精制中的加热炉、电站中的锅炉等。
总之,换热器可以根据不同的换热原理和应用场景,分为管壳式换热器、板式换热器、管束式换热器、螺旋板换热器、空气冷却器和管式加热器等多种类型。
这些换热器在不同的工业领域中发挥着重要作用,提高了能源利用效率,降低了设备运行成本,促进了工业生产的发展。
2.逆布雷顿循环制冷系统循环分析与理论设计图2-2图2-3图2-1是逆布雷顿空气制冷循环热力过程原理图。
理论循环由1-2"-3-4ˊ-5ˊ-6-1表示,但是由于各种因素的影响,空气制冷系统的实际循环和理论循环的差别很大。
为了便于分析我们采用一些简化的处理方法,首先假设空气是理想气体,理想气体假设在这篇论文所讨论的温度和压力范围内所造成的误差很小,可以忽略不计;假设吸热和放热过程为等压过程,压缩很膨胀过程中的损失可以折算到进出口压力上去;在回热过程中考虑传热温差,此时的回冷热交换器的效率小于1,而且在处理回热过程时假设它没有流动阻力损失,并把漏热损失折算为用冷装置的热负荷;空气在压缩机中的压缩过程要考虑到绝热压缩效率ηCS,在膨胀机中的膨胀过程要考虑到相对内效率ηT。
在极限回热过程中,空气的温度经过冷凝器和回热器后可以到达4ˊ,但是由于回热效率的存在空气只能经回热器被冷却到4,空气经过理想绝热膨胀过程后可以到达状态点5",但是实际过程并不能完全达到可逆,因此膨胀后只能到达状态点5,点5的计算需要考虑到膨胀机的等熵效率。
空气从膨胀机中出来后进入用冷装置,被用冷装置加热到状态点6,6点所对应的温度就是制冷温度,然后空气进入回热器中被加热至状态点1ˊ后进入压缩机,压缩过程不是完全的可逆过程,所以空气被压缩至状态点2而不是2ˊ,然后空气进入冷凝器被定压冷却至状态点3,再进入回热器被定压冷却至4,从而完成了一个完整的循环过程。
在工程实际中,空气压缩机可以采用活塞式以及螺杆式等,效率一般在0.6~0.8之间,通常为0.7左右;膨胀机采用径流式气体轴承膨胀机,在规定工况内的运行效率大约在0.5~0.7之间,通常为0.6左右;回热器采用高效紧凑的板翅式换热器,效率可以达到0.75~0.95,通常在0.8左右;环境温度为298K,制冷温度为220K,压力比根据实际和要求情况选取。
我在这里取压缩机入口处的空气压强P1ˊ=0.1MPa,压比π=3.0,则压缩机出口处的压强是P2=0.3Mpa,c p是空气的定压比热容,在一般的使用压力和温度范围内看作常数先来确定各点的温度T4=T0+ΔT=T0+(T K-T0)*(1-ηR)=231.7K,ηR=0.85为回冷热交换器的效率T5〞=T4*(P5/P4)^((1.41-1)/1.41)=168.3K由ηT=(T4-T5)/(T4-T5〞)的得出T5=193.7K,其中ηT为等熵膨胀效率T1'=298.0KT2ˊ=T1ˊ*(p2ˊ/p1ˊ)^((1.41-1)/1.41)=410.2K由(T2'-T1')/(T2-T1')=ηCs得T2=458.3K,其中ηCs为压缩机效率综上可知各点温度:T1'=298.0K,T2=458.3K T3=298K,T4=231.7K,T5=193.7K,T6=220K由nist软件可以计算各点的焓值图2-4制冷机的单位质量工质耗功量为w=w e-w c;式子中w e是压缩机气体耗功,w c是膨胀机膨胀气体做功。
制冷专业英语基本术语制冷refrigeration蒸发制冷evaporative refrigeration沙漠袋desert bag制冷机refrigerating machine制冷机械refrigerating machinery制冷工程refrigeration engineering制冷工程承包商refrigeration contractor制冷工作者refrigerationist制冷工程师refrigeration engineer制冷技术员refrigeration technician制冷技师refrigeration technician制冷技工refrigeration mechanic冷藏工人icer制冷安装技工refrigeration installation mechanic制冷维修技工refrigeration serviceman冷藏链cold chain制冷与空调维修店refrigeration and air conditioning repair shop冷藏refrigerated prvservation一般制冷换热器英语换热器heat exchanger热交换器heat exchanger紧凑式换热器compact heat exchanger管式换热器tubular heat exchanger套管式换热器double-pipe heat exchanger间壁式换热器surface type heat exchanger表面式换热器surface type heat exchanger板管式换热器tube-on-sheet heat exchanger 板翅式换热器plate-fin heat exchanger板式换热器plate heat exchanger螺旋板式换热器spiral plate heat exchanger 平板式换热器flat plate heat exchanger顺流式换热器parallel flow heat exchanger逆流式换热器counter flow heat exchanger *流式换热器cross-flow heat echanger折流式换热器turn back flow heat exchanger 直接接触式换热器direct heat exchanger旋转式换热器rotary heat exchanger刮削式换热器scraped heat exchanger热管式换热器heat pipe exchanger蓄热器recuperator 壳管式换热器shell and tube heat exchanger 管板tube plate可拆端盖removable head管束bundle of tube管束尺寸size of tube bundle顺排管束in-line hank of tubes错排管束staggered hank of tubes盘管coil蛇形管serpentine coilU形管U-tube光管bare tube肋片管finned tube翅片管finned tube肋管finned tube肋管束finned tube bundle肋片fin套片plate fin螺旋肋spiral fin整体肋integral fin纵向肋longitudinal fin钢丝肋wire fin内肋inner fin肋片管尺寸size of fin tube肋片厚度fin thickness肋距spacing of fin肋片数pitch of fin肋片长度finned length肋片高度finned height肋效率fin efficiency换热面积heat exchange surface传热面积heat exchange surface冷却面积cooling surface加热表面heat exchange surface基表面primary surface扩展表面extended surface肋化表面finned surface迎风表面face area流通表面flow area净截面积net area;effective sectional area迎风面流速face velocity净截面流速air velocity at net area迎风面质量流速face velocity of mass净截面质量流速mass velocity at net area冷(热)媒有效流通面积effective area forcooling or heating medium冷(热)媒流速velocity of cooling or heating medium干工况dry condition;sensible cooling condition湿工况wet condition;dehumidifying condition接触系数contact factor旁通系数bypass factor换热效率系数coefficient of heat transmission effectiveness盘管风阻力air pressure drop of coil;air resistance of coil盘管水阻力pressure drop of cooling or heating medium表面冷却surface cooling蒸发冷却evaporating cooling冷却元件cooling element涡流管制冷英语涡流制冷效应vortex refrigerating effect兰克-赫尔胥效应Ranque-Hilsch effect涡流管制冷vortex tube refrigeration涡流管vortex tube兰克管Ranque tube膨胀喷嘴expansion injector涡流室vortex device分离孔板separation orifice调节阀control valve膨胀压力比expansion pressure ratio冷气流分量cold gas fraction热气流分量hot gas fraction冷却效应cooling effect加热效应heating effect冷却效率cooling efficiency磁制冷英语磁热效应magnetocaloric effect磁制冷magnetic refrigeration磁制冷机magnetic refrigerating machine磁冰箱magnetic refrigerator压缩机制冷系统及机组制冷系统refrigeration system制冷机refrigerating machine机械压缩制冷系统mechanical compression refrigeration system蒸气压缩制冷系统vapour compression refrigeration system压缩式系统compression system压缩机compressor制冷压缩机refrigerating compressor,refrigerant compressor吸气端suction end排气端discharge end低压侧low pressure side高压侧high pressure side蒸发压力evaporating pressure吸气压力suction pressure,back pressure排气压力discharge pressure蒸发温度evaporating temperature冷凝压力condensing pressure冷凝温度condensing temperature吸气温度suction temperature回气温度back temperature排气温度discharge temperature压缩比compression ratio双效压缩dual compression单级压缩single-stage compression双级压缩compound compression多级压缩multistage compression压缩级compression stage低压级low pressure stage高压级high pressure stage中间压力intermediate pressure中间冷却intercooling多级膨胀multistage expansion湿压缩wet compression干压缩dry compression制冷系统refrigerating system机械制冷系统mechanical refrigerating system氟利昂制冷系统freon refrigerating system氨制冷系统ammonia refrigerating system压缩式制冷系统compression refrigerating system单级压缩制冷系统single-stage compression refrigeration system双级压缩制冷系统two-stage compression refrigeration system多级制冷系统multistage refrigerating system 复叠式制冷系统cascade refrigerating system 混合制冷剂复叠系统mixed refrigerant cascade集中制冷系统central refrigerating plant直接制冷系统direct refrigeration system直接膨胀供液制冷系统refrigeration system with supply liqiud direct expansion重力供液制冷系统refrigeration system with supply liquid refrigerant for the evaporator by gravity液泵供液制冷系统refrigeration system with supply liquid refrigerant for evaporator by liquid pump间接制冷系统indirect refrigeration system融霜系统defrosting system热气融霜系统defrosting system by superheated vapour电热融霜系统eletrothermal defrosting system制冷系统故障breakdown of the refrigerating system冰堵freeze-up冰塞ice plug脏堵filth blockage油堵greasy blockage液击(冲缸、敲缸)slugging湿行程wet stroke镀铜现象appearance of copper-plating烧毁burn-out倒霜frost back制冷机组refrigerating unit压缩机组compressor unit开启式压缩机组open type compresssor unit 开启式压缩机open type compressor半封闭式压缩机组semihermetic compressor unit半封闭式压缩机semihermetic compressor全封闭式压缩机组hermetically sealed compressor unit全封闭式压缩机hermetically sealed compressor压缩冷凝机组condensing unit全封闭式压缩冷凝机组hermetically sealed condensing unit半封闭式压缩冷凝机组semihermetically sealed condensing unit开启式压缩冷凝机组open type compressor condensing unit工业用压缩冷凝机组industrial condensing unit商业用压缩冷凝机组commercial condensing unit整马力压缩冷凝机组integral horsepower condensing unit分马力压缩冷凝机组fractional horsepower condensing unit跨式制冷机组straddle refrigerating unit容积式压缩机及零部件英语容积式压缩机positive displacement compressor往复式压缩机(活塞式压缩机)reciprocating compressor回转式压缩机rotary compressor滑片式压缩机sliding vane compressor单滑片回转式压缩机single vane rotary compressor滚动转子式压缩机rolling rotor compressor三角转子式压缩机triangle rotor compressor 多滑片回转式压缩机multi-vane rotary compressor滑片blade旋转活塞式压缩机rolling piston compressor 涡旋式压缩机scroll compressor涡旋盘scroll固定涡旋盘stationary scroll,fixed scroll驱动涡旋盘driven scroll,orbiting scroll斜盘式压缩机(摇盘式压缩机)swash plate compressor斜盘swash plate摇盘wobble plate螺杆式压缩机screw compressor单螺杆压缩机single screw compressor阴转子female rotor阳转子male rotor主转子main rotor闸转子gate rotor无油压缩机oil free compressor膜式压缩机diaphragm compressor活塞式压缩机reciprocating compressor单作用压缩机single acting compressor双作用压缩机double acting compressor双效压缩机dual effect compressor双缸压缩机twin cylinder compressor闭式曲轴箱压缩机closed crankcase compressor开式曲轴箱压缩机open crankcase compressor顺流式压缩机uniflow compressor逆流式压缩机return flow compressor干活塞式压缩机dry piston compressor双级压缩机compund compressor多级压缩机multistage compressor差动活塞式压缩机stepped piston compound compressor,differential piston compressor串轴式压缩机tandem compressor,dual compressor截止阀line valve,stop valve排气截止阀discharge line valve吸气截止阀suction line valve部分负荷旁通口partial duty port能量调节器energy regulator容量控制滑阀capacity control slide valve容量控制器capacity control消声器muffler联轴节coupling曲轴箱crankcase曲轴箱加热器crankcase heater轴封crankcase seal,shaft seal填料盒stuffing box轴封填料shaft packing机械密封mechanical seal波纹管密封bellows seal转动密封rotary seal迷宫密封labyrinth seal轴承bearing滑动轴承sleeve bearing偏心环eccentric strap滚珠轴承ball bearing滚柱轴承roller bearing滚针轴承needle bearing 止推轴承thrust bearing外轴承pedestal bearing臼形轴承footstep bearing轴承箱bearing housing止推盘thrust collar偏心销eccentric pin曲轴平衡块crankshaft counterweight,crankshaft balance weight曲柄轴crankaxle偏心轴eccentric type crankshaft曲拐轴crankthrow type crankshaft连杆connecting rod连杆大头crank pin end连杆小头piston pin end曲轴crankshaft主轴颈main journal曲柄crank arm,crank shaft曲柄销crank pin曲拐crank throw曲拐机构crank-toggle阀盘valve disc阀杆valve stem阀座valve seat阀板valve plate阀盖valve cage阀罩valve cover阀升程限制器valve lift guard阀升程valve lift阀孔valve port吸气口suction inlet压缩机气阀compressor valve吸气阀suction valve排气阀delivery valve圆盘阀disc valve环片阀ring plate valve簧片阀reed valve舌状阀cantilever valve条状阀beam valve提升阀poppet valve菌状阀mushroom valve杯状阀tulip valve缸径cylinder bore余隙容积clearance volume附加余隙(补充余隙)clearance pocket活塞排量swept volume,piston displacement 理论排量theoretical displacement实际排量actual displacement实际输气量actual displacement,actual output of gas气缸工作容积working volume of the cylinder 活塞行程容积piston displacement气缸cylinder气缸体cylinder block气缸壁cylinder wall水冷套water cooled jacket气缸盖(气缸头)cylinder head安全盖(假盖)safety head假盖false head活塞环piston ring气环sealing ring刮油环scraper ring油环scrape ring活塞销piston pin活塞piston活塞行程piston stroke吸气行程suction stroke膨胀行程expansion stroke压缩行程compression stroke排气行程discharge stroke升压压缩机booster compressor立式压缩机vertical compressor卧式压缩机horizontal compressor角度式压缩机angular type compressor对称平衡型压缩机symmetrically balanced type compress吸收式制冷机英语吸收式制冷机absorption refrigerating machine吸收式制冷系统absorption refrigerating system间歇式吸收系统intermittent absoprtion system连续循环吸收式系统continuous cycle absorption system固体吸收式制冷solid absorption refrigeration 氨-水吸收式制冷机ammonia/water absorption refrigerating machine 单级氨-水吸收式制冷机single stage ammonia/water absorption refrigerating machine多级氨-水吸收式制冷机multistage ammonia/water absorption refrigerating machine双级氨-水吸收式制冷机ammonia/water absorption refrigerating machine with two stage absorption process双级发生和双级吸收式氨-水制冷机ammonia/water absorption refrigerating machine with two stage generation and absoprtion process分解decomposition水解hydrolysis扩散diffusion能量增强剂energy booster缓蚀剂anticorrsive发生不足incomplete boiling吸收不足incomplete absorption喷淋密度sprinkle density溴化锂lithium bromide溴化锂水溶液aqueous solution of lithium bromide氨水溶液aqueous solution of ammonia吸收剂absorbent,absorbing agent吸附剂adsorbent溶液solution浓度concentration溶解度solubility溶剂solvent溶质solute浓溶液rich solution,concentrated solution稀溶液weak solution,diluted solution溶液分压partial pressure of liquor吸收absorption吸附adsorption吸收式制冷absorption refrigeration吸附式制冷adsorption refrigeration工质对working substance热力系数heat ratio放气范围deflation ratio焓-浓度图enthalpy concentration chart溴化锂吸收式制冷机lithiumbromideabsorption refrigerating machine单效型溴化锂吸收式制冷机single-effect lithiumbromide absorption refrigerating machine两效型溴化锂吸收式制冷机double-effect lithiumbromide absorption refrigerating machine单筒型溴化锂吸收式制冷机one-shell lithiumbromide absorption refrigerating machine双筒型溴化锂吸收式制冷机two-shell lithiumbromide absorption refrigerating machine三筒型溴化锂吸收式制冷机three-shell lithiumbromide absorption refrigerating machine两级溴化锂吸收式制冷机two-stage lithiumbromide absorption refrigerating machine直燃式溴化锂吸收式制冷机direct-fired lithiumbormide absorption refrigerating machine溴化锂吸收式冷温水机组lithiumbromide absorption water heater chiller无泵型溴化锂吸收式制冷机lithiumbromide absorption refrigerating machine with bubble pump蒸汽型吸收式制冷机steam operated absorption refrigerating machine热水型吸收式制冷机hot water operated absorption refrigerating machine发生器generator沉浸式发生器submerged generator喷淋式发生器spray-type generator立式降膜式发生器vertical falling film generator直燃式发生器direct-fired generator高压发生器high pressure generator低压发生器low pressure generator吸收器absorber喷淋式吸收器spray absorber降膜式吸收器falling film absorber立式降膜式吸收器vertical falling film absorber 卧式降膜式吸收器horizontal falling film absorber喷淋装置spray system溶液换热器solution heat exchanger溶晶管anti-crystallinic pipe抽气装置purging system精馏器rectifier屏蔽泵shield pump发生器泵generator pump吸收器泵absorber pump蒸发器泵evaporator pump溶液泵solution pump氨水泵aqua-ammonia pump混合阀mixing valve太阳能制冷与供热英语太阳能solar energy太阳常数solar constant太阳能系统solar energy system被动式太阳能系统passive solar energy system主动式太阳能系统active solar energy system 混合式太阳能系统hybrid solar energy system 太阳能制冷solar cooling太阳能热机驱动制冷solarpowered cooling太阳能吸收式制冷机solar absorption refrigerating machine光-热转换制冷photothermal refrigeration光-电转换制冷photoelectrical refrigeration太阳能蒸汽喷射制冷机solar steam jet refrigerating machine连续式太阳能吸收式制冷机continual solar absorption refrigerating machine间歇式太阳能吸收式制冷机intermittent solar absorption refrigerating machine敞开式太阳能吸收式制冷机open solar absorption refrigerating machine太阳能空调装置solar air-conditioning system 太阳能制冷系统solar energy cooling system,solar cooling system太阳能集热器solar collector选择式吸收表面selective absorber surface电淀积electrodeposition平板型太阳能集热器flat plate solar collector真空管太阳能集热器tubular solar collector,vacuum tube collector聚光型太阳能机热器focus solar collector集热量heat-collecting capacity集热温度heat-collecting temperature集热效率heat-collecting efficiency蓄热介质heat storge medium岩石蓄热容器rock storge container辅助热源supplementary heat source太阳能贮存系统solar energy storge system 太阳能供热系统solar heating system,solar space heating installation自然循环闭式供水系统natural convection closed water system强制循环闭式供水系统forced convection in a closed water system热风供热系统warm air heating system家用太阳能热水系统solar domestic water heating system热管与余热制冷英语热管heat pipe深冷热管cryogenic heat pipe低温热管low temperature heat pipe中温热管moderate temperature heat pipe高温热管liquid metal heat pipe管芯wick相容性compatibility传热极限heat transport limitation重力热管gravity assisted heat pipe热管换热器heat pipe exchanger深冷热管手术器heat pipe surgery cryoprobe 余热exhaust heat低温余热low temperature exhaust heat余热制冷utilizing waste heat for refrigeration 氟利昂透平freon turbine氟利昂透平离心式制冷机centrifugal refrigerating machine driven by freon turbine 动力-制冷循环power/refrigeration cycle透平压缩机及零部件英语涡流swirl叶片颤振blade flutter叶片通过频率blade passing frequency 喘振surging脱流stall叶轮反应度(反作用度) impeller reaction叶轮impeller半开式叶轮unshrouded impeller闭式叶轮shrouded impeller叶片blade,vane导流叶片组件pre-rotary vane assembly扩压器diffuser蜗壳scroll滑动slip透平压缩机turbocompressor离心式压缩机centrifugal compressor轴流式压缩机axial flow compressor刚性轴离心式压缩机stiff-shaft centrifugal compressor挠性轴离心式压缩机flexibleshaft centrifugal compressor亚音速压缩机subsonic compressor超音速压缩机supersonic compressor冷却塔英语自然通风式冷却塔atmpspheric cooling tower,natural draught cooling tower机械通风式冷水塔mechanical draught cooling tower吸风式冷水塔induced draught cooling tower 送风式冷水塔forced draught cooling tower 水膜式冷水塔film cooling tower水滴式冷水塔drop cooling tower喷雾式冷水塔spray cooling tower拉西环Rasching rings温度接近值approach水垢scale水垢抑制剂scale inhibitor藻类algae防藻剂algaecide淀渣slime升压阀back-up valve冷水塔water cooling tower,cooling tower 凉水塔water cooling tower,cooling tower 冷却塔water cooling tower,cooling tower 喷水池spray pond干式冷水塔dry cooling tower湿-干式冷水塔wet-dry cooling tower冷水塔填料packing of cooling tower,fill of cooling tower膜式填料film packing帘栅形填料grid packing,grid fill片式填料plate packing,plate fill松散填料random packing,random fill飞溅式填料splash packing空气压缩制冷系统英语空气循环制冷air-cycle refrigeration空气循环制冷机air-cycle refrigerating machine涡轮冷却器turbine cooler温降temperature drops开式循环open cycle闭式循环closed cycle除水water elimination补气air supply回热式空气制冷循环regenerative air cycle飞机座舱空调系统aircraft air-conditioning system增压式飞机空调系统"Bootstrap" system冲压空气ram air制冷系统自动调节流量调节flow regulation制冷剂控制器refrigerant control膨胀阀expansion valve节流阀throttle valve热力膨胀阀thermostatic expansion valve热电膨胀阀thermal electric expansion valve 内平衡热力膨胀阀internal equalizer thermostaice expansion valve外平衡热力膨胀阀external equalizer thermostaice expansion valve外平衡管external equalizer pipe内平衡管internal equalizer pipe蒸发器阻力损失pressure drop of evaporator 同工质充注same material charge交*充注cross charge吸附充注absorptive charge气体充注gas charge膨胀阀过热度superheat degree of expansion valve过热温度调节superheat temperature regulation膨胀阀容量expansion valve capacity手动膨胀阀hand expansion valve自动膨胀阀automatic expansion valve浮球调节阀float regulation valve浮球阀float valve低压浮球阀low pressure float valve高压浮球阀high pressure float valve流量调节flow regualation制冷剂控制器refrigerant control膨胀阀expansion valve节流阀throttle valve热力膨胀阀thermostatic expansion valve热电膨胀阀thermal electric expansion valve 内平衡热力膨胀阀internal equalizer thermostaice expansion valve外平衡热力膨胀阀external equalizer thermostaice expansion valve外平衡管external equalizer pipe内平衡管internal equalizer pipe蒸发器阻力损失pressure drop of evaporator 同工质充注same material charge交*充注cross charge吸附充注absorptive charge气体充注gas charge膨胀阀过热度superheat degree of expansion valve过热温度调节superheat temperature regulation膨胀阀容量expansion valve capacity手动膨胀阀hand expansion valve自动膨胀阀automatic expansion valve浮球调节阀float regulation valve浮球阀float valve低压浮球阀low pressure float valve高压浮球阀high pressure float valve恒压膨胀阀constant pressure expansion valve能量调节capacity regulator单机能量调节capacity regulation of single unit卸载能量调节capacity regulation of loaddrainage程序指令式能量调节系统capacity regulation system of program order电磁阀solenoid valve电磁滑阀magnetic slide valve三通电磁阀three way magnetic valve蒸汽喷射式制冷系统英语蒸汽喷射制冷steam jet refrigeration蒸汽喷射制冷机steam-jet refrigerating machine蒸发式蒸汽喷射制冷机evaporation-type steam jet refrigeration machine混合式蒸汽喷射制冷机contact-type steam jet refrigerating machine蒸汽喷射制冷系统steam jet refrigerating system蒸汽喷射器steam ejector主喷射器main ejector辅助喷射器auxiliary ejector喷射系数jet coefficient主冷凝器main condenser辅助冷凝器auxiliary condenser多效蒸发multieffective evaporation高位安装high-level installation低位安装low-level installation高低位安装high-low-level installation臭氧层保护英语臭氧ozone臭氧层ozonesphere,ozone layer臭氧层破坏ozonesphere depletion,ozonesphere disturbance消耗臭氧层物质ozone depleting substances (ODS)禁用制冷剂forbidden refrigerant过渡制冷剂transition refrigerant替代制冷剂substitute refrigerant自然制冷剂natural refrigerant氟利昂家族freon group全氟代烃fluorocarbon (FC)氯氟烃chloroflurocarbon(CFC)氢氟烃hydrofluorocarbon(HCF)含氢氯氟烃hydrochloroflurocarbon(HCFC)含氢氯化烃hydrochlorocarbon(HCC)全氯化烃polychlorocarbon(PCC)哈龙Halon共沸混合物azeotropic mixture碳氢化合物hydrocarbon compound,hydrocarbon(HC)臭氧消耗潜能值ozone depletion potential (ODP)温室效应greenhouse effect全球变暖global warming京都议定书kyoto protocol全球变暖潜能值global warming potential (GWP)变暖影响总当量total equivalent warming impact(TEWI)寿命期气候性能life cycle climate performance(LCCP)蕴含能量embodied energy不易收集的排放fugitive emissions热电制冷英语热电制冷thermoelectric refrigeration温差电制冷thermoelectric refrigeration半导体制冷semiconductor refrigeration热电效应thermoelectric effect塞贝克效应Seebeck effect珀尔帖效应Peltier effect热电制冷效应thermoelectric refrigeration effect汤姆逊效应Thomson effect焦耳效应Joule effect傅里叶效应Fourier effect温差电动势thermoelectric power塞贝克系数Seebeck coefficient优值系数figure of merit热电堆thermoelectric pile温差电堆thermoelectric pile最佳电流optimum current经济电流economic current热电半导体thermoelectric semiconductors热电材料thermoelectric material热电制冷材料thermoelectric cooling material n型半导体n-type semiconductorsp型半导体p-type semiconductors半导体制冷器thermoelectric-refrigerating unit热电制冷器thermoelectric refrigerating unit 热电空调器thermoelectric air conditioner半导体空调器thermoelectric air conditioner 半导体恒温器thermoelectric thermostat半导体冷饮水器thermoelectric drinking water cooler半导体热泵thermoelectric heat pump半导体降温机thermoelectric dehumidifier低温半导体制冷器low temperature thermoelectric unit焊接式半导体制冷器soldered thermoelectric refrigerating unit粘接式半导体制冷器sticky thermoelectric refrigerating unit嵌装式半导体制冷器inlaid thermoelectric refrigerating unit复叠式半导体制冷器cascade thermoelectric refrigerating unit医用半导体制冷器medicine thermoelectric refrigerating unit盐水冷却系统开式盐水冷却系统open brine system闭式盐水系统closed brine system盐水箱brine bank盐水混合箱brine mixing tank盐水溢流箱brine return tank盐水回流箱brine return tank盐水膨胀箱brine balance tank盐水加热器brine heater盐水冷却器brine cooler盐水筒brine drum盐水集管brine header盐水泵brine pump盐水喷雾brine spray盐水喷淋brine sparge制冷暖通行业品牌中英文对照AEROFLEX “亚罗弗”保温ALCO “艾科”自控Alerton 雅利顿Alfa laval阿法拉伐ARMSTRONG “阿姆斯壮”保温AUX 奥克斯BELIMO 瑞士“搏力谋”BERONOR西班牙“北诺尔”电加热器BILTUR 意大利“百得”BOSIC “柏诚”自控BROAD 远大Burnham美国“博恩汉”锅炉CALPEDA意大利“科沛达”水泵CARLY 法国“嘉利”制冷配件Carrier 开利Chigo 志高Cipriani 意大利斯普莱力CLIMAVENETA意大利“克莱门特”Copeland“谷轮”压缩机CYRUS意大利”赛诺思”自控DAIKIN 大金Danfoss丹佛斯Dorin “多菱”压缩机DUNHAM-BUSH 顿汉布什DuPont美国“杜邦”制冷剂Dwyer 美国德威尔EBM “依必安”风机ELIWELL意大利“伊力威”自控EVAPCO美国“益美高”冷却设备EVERY CONTROL意大利“美控”Erie 怡日FRASCOLD 意大利“富士豪”压缩机FRICO瑞典“弗瑞克”空气幕FUJI “富士”变频器FULTON 美国“富尔顿”锅炉GENUIN “正野”风机GREE 格力GREENCOOL格林柯尔GRUNDFOS “格兰富”水泵Haier 海尔Hisense 海信HITACHI 日立Honeywell 霍尼韦尔Johnson 江森Kelon 科龙KRUGER瑞士“科禄格”风机KU BA德国“库宝”冷风机Liang Chi 良机LIEBERT 力博特MARLEY “马利”冷却塔Maneurop法国“美优乐”压缩机McQuary 麦克维尔Midea 美的MITSUBISHI三菱Munters 瑞典“蒙特”除湿机Oventrop德国“欧文托普”阀门Panasonic 松下RANCO “宏高”自控REFCOMP意大利“莱富康”压缩机RIDGID 美国“里奇”工具RUUD美国“路德”空调RYODEN “菱电”冷却塔SanKen “三垦”变频器Samsung 三星SANYO 三洋SASWELL英国森威尔Schneider 施耐德SenseAir 瑞典“森尔”传感器SIEMENS 西门子SINKO "新晃“空调SINRO “新菱”冷却塔STAND “思探得”加湿器SWEP 舒瑞普TECKA “台佳”空调Tecumseh“泰康”压缩机TRANE 特灵TROX德国“妥思”VASALA芬兰“维萨拉”传感器WILO德国“威乐”水泵WITTLER 德国”威特”阀门YORK 约克ZENNER德国“真兰”计量制冷能力及计算术语英语运行工况operating conditions标准性能standard rating标准工况standard condition空调工况air conditioning condition 内部条件internal conditions外部条件external conditions蓄热accumulation of heat蓄冷accumulation of cold 制冰能力ice-making capacity热泵用压缩机的供热系数heat-pump compressor coefficient of performance容积效率volumetric efficiency容积输气量vulumetric displacement实际输气量actual displacement理论输气量theoretical displacement冷凝热量condenser heat过冷热量heat of subcooling过热热量superheat运转工况下的制冷量rating under working conditions标准制冷量standard rating名义工况normal conditions试验工况test conditions轴功率brake power效率efficiency指示效率indicated efficiency机械效率mechanical efficiency总效率overall efficiency制冷系数coefficient of performance (COP)制冷压缩机的制冷系数refrigerating compressor coefficient of performance热力完善度thermodynamical perfectness能效比energy efficiency ratio (EER)热泵供热系数heat-pump coefficient of performance空调有效显热制冷量useful sensible heat capacity of air conditioner空调有效潜热(减湿)制冷量useful latent heat (dehumidifyying) capacity of air conditioner 空调器有效总制冷量useful total capacity of air conditioner制冷剂循环量circulating mass of refrigerant 制冷剂循环容积circulating volume of refrigerant单位压缩功compress work per mass示功图indicator diagram指示功indicated work摩擦功frictional work功率power摩擦功率frictional power指示功率indicated power理论功率idea power制冷量refrigerating capacity总制冷量gross refrigerating capacity净制冷量net refrigerating capacity单位制冷量refrigerating capacity per weighing单位容积制冷量refrigerating capacity per unit of swept volume制冷系统制冷量system refrigerating capacity 单位轴功率制冷量refrigerating effect per shaft power压缩冷凝机组制冷量compressor condensing unit refrigerating capacity制冷压缩机制冷量refrigerant compressor capacity蒸发器净制冷量net cooler refrigerating capacity制冷装置制冷装置refrigerating installation,refrigerating plant工业制冷装置industrial refrigerating plant商业制冷装置commercial refrigerating plant 中心站房central station成套机组self-contained system规范安装code installation制冷回路refrigerating circuit热平衡heat balance货物负荷product load操作负荷service load设计负荷design load负荷系数load factor制冷装置试验与操作试运转commissioning吹污flush气密性试验gas-tight test,air-right test密闭容器closed container漏气air infiltration放气air vent检漏leak hunting,leak detection检漏仪leak detector卤素灯halide torch电子检漏仪electronic leak detector真空试验vacuum test 试验压力test pressure工作压力operating pressure,working pressure最高工作压力highest operating pressure气密试验压力gas-tight test pressure设计压力design pressure平衡压力balance pressure充气aerate,gas charging制冷剂充注refrigerant charging首次充注initial charge保护充注holding charge,service charge制冷剂不足lack of refrigerant,under-charge,gas shortage缺液starveling充灌台charging board充灌量charge充注过多overcharge供液过多overfeeding制冷剂抽空pump down of refrigerant降温试验pull down test制冷[功能]试验refrigeration test卸载起动no-load starting,unloaded start卸载机构unloader闪发flash vaporization,instantaneous vaporization闪发气体flash gas不凝性气体non condensable gas气体排除gas purging,degassing,gasoff阀针跳动hammering,needle hammer阀振荡hunting of a valve阀片跳动valve flutter,valve bounce短期循环short-cycling异常温升overheating泄漏leak气蚀cavitation制冷剂瓶refrigerant cylinder,gas bottle检修用瓶service cylinder,gas bottle紧急泄放阀emergency-relief valve检修阀service valve安全阀pressure relief valve抽空阀pump out valve加油阀oil charge valve放油阀oil drain valve放空阀purge valve充灌阀charging valve喷液阀liquid injection valve润滑油润滑油lubricant oil冷冻机油refrigeration oil冷冻油refrigerant oil凝点condensation point闪点flash point浊点cloud point絮凝点flock point流动点pour point起泡foaming皂化saponify油泥sludge结碳carbonization制冷剂制冷剂(制冷工质)refrigerant高温制冷剂high temperature refrigerant低压制冷剂low pressure refrigerant中温制冷剂medium temperature refrigerant 中压制冷剂medium pressure refrigerant低温制冷剂low temperature refrigerant高压制冷剂high pressure refrigerant氟利昂freon卤化碳制冷剂halocarbo refrigerant氟利昂11 freon 11氟利昂12 freon 12氟利昂13 freon 13氟利昂14 freon 14氟利昂22 freon 22氟利昂113 freon 113氟利昂125 freon 125氟利昂134a freon 134a氟利昂152a freon 152a碳氢化合物制冷剂hydrocarbon refrigerant甲烷methane乙烷ethane丙烷propane丁烷butane异丁烷isobutane乙烯ethylene无机化合物制冷剂inorganic compund refrigerant氨ammonia二氧化碳carbon dioxide二氧化硫sulphur dioxide干冰dry ice共沸制冷剂azeotropic mixture refrigerant氟里昂500 freon 500氟里昂501 freon 501氟里昂502 freon 502氟里昂503 freon 503氟里昂504 freon 504近共沸溶液制冷剂near azeotropic mixture refrigerant非共沸溶液制冷剂nonazeotropic mixture refrigerant蒸发器壳盘管式蒸发器shell-and-coil evaporator壳管式蒸发器shell-and-tube evaporator喷淋式蒸发器spray-type evaporator立管式蒸发器vertical-type evaporator平行管蒸发器receway coil螺旋管式蒸发器spiral tube evaporator“V”型管蒸发器herringbone type evaporator 沉浸式盘管蒸发器submerged evaporator板式蒸发器plate-type evaporator螺旋板式蒸发器spiral sheet evaporator平板式蒸发器plate-type evaporator,tube-in-sheet evaporator管板式蒸发器tube-on-sheet evaporator凹凸板式蒸发器embossed-plate evaporator 吹胀式蒸发器roll-bond evaporator压焊板式蒸发器roll-bond evaporator制冰块器的蒸发器ice cube maker evaporator 结冰式蒸发器ice-bank evaporator蓄冰式蒸发器ice-bank evaporator结霜蒸发器frosting evaporator除霜蒸发器defrosting evaporator无霜蒸发器nonfrosting evaporator强制通风蒸发器forced circulation evaporator 冷液式蒸发器liquid cooling evaporator封套式蒸发器wrap-round evaporator蒸发器evaporator直接冷却式蒸发器direct evaporator直接式蒸发器direct evaporator间接冷却式蒸发器indirect cooled evaporator 间接式蒸发器indirect evaporator干式蒸发器dry expansion evaporator满液式蒸发器flooded evaporator再循环式蒸发器recirculation-type evaporator 强制循环式蒸发器pump-feed evaporator冷凝器英语冷凝器condenser冷凝液condensate空冷式冷凝器air-cooled condenser风冷式冷凝器air-cooled condenser自然对流空冷式冷凝器natural convecton air-cooled condenser强制通风式冷凝器forced draught condenser 冷凝风机condensate fan线绕式冷凝器wire and tube condenser水冷式冷凝器water-cooled condenser沉浸式盘管冷凝器submerged coil condenser 套管式冷凝器double pipe condenser壳管式冷凝器shell and tube condenser组合式冷凝器multishell condenser卧式壳管式冷凝器closed shell and tube condenser卧式冷凝器closed condenser立式壳管式冷凝器open shell and tube condenser立式冷凝器open condenser,vertical condenser壳盘管式冷凝器shell and coil condenser分隔式冷凝器split condenser淋激式冷凝器atmospheric condenser溢流式冷凝器bleeder-type condenser蒸发式冷凝器evaporative condenser板式冷凝器plate-type condenser空冷板式冷凝器air-cooled plate-type condenser水冷板式冷凝器water-cooled plate-type condenser焊接板式冷凝器welded sheet condenser螺旋板式冷凝器spiral sheet condenser冷凝-贮液器condenser-receiver混合式冷凝器barometric condenser 液化器liquefier冷凝水泵condensate pump冷凝器梳condensate comb预冷盘管desuperheating coil过冷器subcooler中间冷却器intercooler盐水冷却器brine cooler气-液回热器liquid or suction heat exchanger 回热器superheater紊流器turbulator预冷器precooler级间冷却器interstage cooler饮水冷却器drinking-water cooler喷泉式饮水冷却器bubbler-type drinking water cooler冷藏间冷却器cold-storage cooler盐水(水)冷却器brine(water)cooler空气冷却器air cooler,forced draught干式空气冷却器dry-type air cooler强制循环空气冷却器forced-circulation air cooler自然对流空气冷却器natural-convection air cooler空气冷却机组air-cooler unit蒸发盘管干燥盘管drier coil冷却盘管cooling coil蒸发盘管expansion coil蓄冷盘管hold-voer coil直接蒸发盘管direct expansion coil制冷剂分配器refrigerant distributor支承板tube support蓄冷板hold-over plate共晶混合物板eutectic plate折流板baffle滴水盘drip tray冷藏库排管冷却排管cooling coil,cooling grid冷却排管组cooling battery顶排管overhead coil墙排管wall coil,wall grid蓄冷排管hold-over coil,hold-over grid蓄冷板hold-over plate。
换热器原理
换热器是一种非常常见的设备,它的主要功能是在设备和系统中传递热量。
它的主要功能是在相互之间传递热量,从而使得物质的温度发生变化。
换热器也可以用来提高流体能量传递效率。
其核心原理是在两个流体之间传递热量,以达到热能平衡。
换热器主要由换热器壳、换热器板片和相关连接件组成。
换热器壳决定了换热器的外形与大小,而换热器板片则决定换热器的性能。
一般来说,换热器的性能取决于其板片的材料和结构,而板片的结构也会影响换热器的体积和重量。
换热器的热交换原理可以分为三种:对流热交换、涡流热交换和辐射热交换。
对流热交换是指两个流体之间进行热量传递,采用物理物性热传导的热交换原理;涡流热交换是指利用流体涡流的储能来实现热量传递;辐射热交换是指利用物体的辐射来进行热量传递,常用于高温环境。
在换热器工作时,流体从换热器的一端流入,另一端流出。
流体经过换热器的内部,两种流体之间的温度差就可以通过换热器板片的热交换原理进行热量传递,流出的流体温度就可以得到改善。
换热器在工业上应用非常广泛,被广泛用于空调、制冷、蒸汽动力、汽车、船舶、原子能等行业。
它们可以改变物质的温度,并且在不影响系统性能的情况下提高流体系统的效率。
另外,换热器也可以用来降低环境污染,通过分离出污染物,在未影响换热器性能的情况下,有效的减少污染物进入环境。
总而言之,换热器的原理是两个流体之间利用不同的热交换原理进行热量传递,以改善流体的温度,并帮助提高流体系统的效率,通过换热器的应用也可以减少环境污染。
因此,换热器的应用极大地改善了工业生产和生活质量,受到了世界各国企业和人们的追捧。
冷风机的工作原理
冷风机的工作原理是利用压缩机和换热器来实现空气的冷却和循环。
具体工作过程如下:
1. 压缩机:冷风机中的压缩机负责将低压的制冷剂气体吸入,然后通过机械工作将其压缩成高压气体,使其温度升高。
2. 换热器:高压的制冷剂气体进入换热器,在换热器内与外部空气进行热交换。
换热器中的翅片和管道结构设计能够有效地增大热交换面积,使得制冷剂的热量可以通过外部空气的吹拂迅速散发,冷却制冷剂的温度。
3. 异步电动机:在冷风机的过程中,异步电动机通过电能输入,带动风机叶轮转动,以使制冷剂的热量被外部空气带走。
4. 膨胀阀:经过换热器的制冷剂气体温度下降后,进入膨胀阀。
膨胀阀的作用是将过高的压力降低,使制冷剂气体再次变为低压。
5. 蒸发器:低压的制冷剂气体通过蒸发器,与室内空气进行热交换。
在热交换过程中,制冷剂吸热蒸发,将空气的热量带走,从而实现空气的冷却。
6. 冷凝器和循环管路:此时制冷剂已经完成了整个循环,被压缩机再次吸入,循环继续。
冷凝器的功能是让制冷剂气体在高温高压的状态下,通过与外部空气进行换热,使得制冷剂的温度变高,并转化成液体,以便重新进入膨胀阀。
通过以上一系列的工作和循环过程,冷风机能够不断地将室内空气的热量带走,实现室内空气的冷却效果。