ELLIOTT__压缩机中文技术手册
3、FS-ELLIOTT离心机简介
FS-ELLIOTT 离心式空压机简介离心式空气压缩机属于动力式空气压缩机离心式空气压缩机属于动力式空气压缩机。
其基本工作原理是用高速回转的叶轮提升气体分子动能是用高速回转的叶轮提升气体分子动能，，再经过扩压器使气体分子的动能转化为压力能子的动能转化为压力能。
通俗点说通俗点说：：容积式压缩机容积式压缩机（（活塞活塞，，螺杆等）就像打气桶，而离心式压缩机有点像电风扇。
1．FS-Elliott 离心式压缩机的压缩流程示意图如右图所示fs-elliott 离心式空压机为三级压缩，两级冷却的机器却的机器。
空气先由进气口吸入经过第一级压缩后进入一级冷却器后器后，，再经第二级压缩后进入二级冷却器冷却再经第二级压缩后进入二级冷却器冷却，，然后又经第三级压缩达到所需压力最后经过后冷却器提供给用户45O C 以下完全无油的洁净高压空气。
2．离心式压缩机的机头结构图右图是离心式压缩机的机头结构图。
它可以清楚的显示出三级压缩的离心式压缩机的结构却如此的简洁。
3．我们提供的是完全无油的洁净压缩空气离心式空气压缩机润滑油只用来润滑轴承及齿轮作为压缩空气的叶轮，蜗壳，扩压器均不接触润滑油。
右图为fs-elliott所采用的水平分离式碳环轴封元件。
它分为气侧碳环和油侧碳环。
两组碳环之间再采用仪表风气幕密封进行双重保护：防止在碳环损坏情况下油气窜至气侧影响气质。
4．世界顶级的设备当然采用世界水平的零部件a．fs-elliott离心式空压机采用目前世界上最先进的后倾式叶轮，采用不锈钢精密加工制成。
此种叶轮具有流量调节范围大，操作性很稳定的优点！b。
先进的水平剖分式可倾瓦块轴承这是fs-elliott公司为适应离心机的运行工况专门设计的。
现在世界上例如fs-elliott这样的高档离心式压缩机均采用此种轴承。
它轴向径向双向止推，巴氏合金的止推面，具备独特的自动调心功能，可以安全的运行于各种工况c。
采用独特的短轴设计将转子振动降至最低。
艾通2.5马力 6加仑空气压缩机使用说明书
Manufactured in China©2008 Alton Industries Group, Ltd. – All Rights ReservedOPERATOR’SMANUALITEM#AT01204-6-Page 2-This manual contains information that relates to PROTECTING YOUR SAFETY and PREVENTING EQUIPMENT PROBLEMS and is very important for you to know and understand. We use the symbols below to help you recognize this information.POTENTIAL HAZARD THAT WILL RESULT IN SERIOUS INJURY OR LOSS OF LIFEPOTENTIAL HAZARD THAT COULD RESULT IN SERIOUS INJURY OR LOSS OF LIFEPOTENTIAL HAZARD THAT MAY RESULT IN MODERATE INJURY OR DAMAGE TO EQUIPMENT1. RISK OF EXPLOSION OR FIRE.Never spray flammable liquids in a confined area. It is normal forthe motor and pressure switch to produce sparks while operating. If sparks come into contact with vapors from gasoline or other solvents, they may ignite and cause fire or explosion. Do not smoke while spraying. Do not spray where sparks or flame are present. Keep compressor as far from spray area as possible. Always operate the compressor in a well-ventilated area.2.RISK OF ELECTRIC SHOCK. A licensed electrician in accordance with all local and national codesmust install all wirings. To avoid electric shock, NEVER use an electric air compressor outdoors when it is raining or on a wet surface.3. RISK OF BURSTING. Rust can weaken the tank.Drain the condensed water from the tank aftereach use to reduce rusting. Welding or modifications on the air tank can severely impair tank strength and cause an extremely hazardous condition. So DO NOT weld, drill or modify the air tank of this compressor. If a leak is detected in the tank, replace the tank right away.4. RISK OF INJURY. ALWAYS shut off the compressor, remove the plug from the outlet and bleed allpressure from the system before servicing the compressor or when the compressor is not in use. Do NOT use the unit with the shrouds removed. Contact moving parts could cause serious injury.5. RISK OF BURSTING. Check the maximum pressure rating in the manual or the serial tag label.Compressor outlet pressure must be regulated so as to never exceed the maximum pressure rating. Relieve all pressure through the hose before removing or attaching accessories.6. RISK OF BURSTING. DO NOT adjust the pressure switch or relief valve for any reason. They havebeen preset at the factory for the maximum pressure of this unit. If the pressure switch or the relief valve are tampered with, personal injury or property damage may occur.7. RISK OF BURNS. Pump and manifold generate high temperature. To avoid burns or other injuries,DO NOT touch the pump, manifold or transfer tube while the unit is running. Allow the parts to cool before handling or servicing. Keep children away from the compressor at all times.8. RISK TO BREATHING. Be certain to read all labels when you are spraying paints or toxic materials,and follow the safety instructions. Use a respirator mask if there is a chance of inhaling anything you are spraying. Also, NEVER directly inhale the compressed air produced by a compressor.9. RISK OF EYE INJURY. ALWAYS wear ANSI Z87.1 approved safety goggles when using an aircompressor. NEVER point any nozzle or sprayer toward a person or any part of the body. If the spray penetrates the skin, serious injury may occur.1. Pull the pressure relief valve ring daily to ensure that the valve is functioning properly.2. The unit must be kept a minimum of 12 inches from the nearest wall, in a well-ventilated area forcooling.3. Protect the air hose and electric cord from damage and puncture. Inspect them weekly for weak orworn spots and replace if necessary.4. Always wear hearing pretection when using an air compressor. Failure to do so may result inhearing loss.5. Operation of the unit should always be in a position that is stable. Never use the unit on a rooftop orelevated position that could allow the unit to fall or be tipped over.-Page 3-B A CDEFGHIJK A--------ELECTRIC MOTOR B--------AIR COMPRESSOR PUMP C--------PRESSURE SWITCH D--------PRESSURE RELIEF VALVE E--------AIR PRESSURE REGULATOR F--------TANK PRESSURE GAUGE G--------REGULATED PRESSURE GAUGE H--------AIR LINE OUTLET I---------AIR TANK DRAIN VALVE J---------AIR TANK K--------POWER CORD-Page 4-A. ELECTRIC MOTOR: The motor is used to power the pump. It has a thermal overload protector and anautomatic reset. If the motor overheats for any reason, the thermal overload protector will shut it down to prevent the motor from being damaged. The motor will automatically restart when it completely cools.B. AIR COMPRESSOR PUMP: The pump is used to compress the air and discharge it into the tank viathe piston moving up and down in the cylinder.C. PRESSURE SWITCH: The switch is used to start or stop the air compressor. It is operated manually.When in ON position, it allows the motor to start when the air tank pressure is below the factory set cut-in pressure and allows the motor to stop when the air tank pressure reaches the factory set cut-out pressure. ALWAYS set this switch to OFF when the unit is not being used, and before unplugging the unit.D. PRESSURE RELIEF VALVE: The valve is used to prevent system failures by relieving pressure fromthe system when the pressure reaches the preset level while the pressure switch does not shut down the motor. It will pop open automatically or you can pull the ring on the valve to make it.E. AIR PRESSURE REGULATOR: The regulator is used to adjust line pressure to the tool you are using.Turn the knob clockwise to increase pressure and counterclockwise to decrease pressure.Never exceed the maximum working pressure of the tool.F. TANK PRESSURE GAUGE: The gauge is used to measure the pressure level of the air stored in thetank. It is not adjustable by the operator, and does not indicate line pressure.G. REGULATED PRESSURE GAUGE: The gauge is used to measure the regulated outlet pressure.H. AIR LINE OUTLET: The outlet is used to connect 1/4” NPT air hose.I. AIR TANK DRAIN VALVE: The drain valve is used to remove moisture from the air tank after the unit isshut off.Never attempt to open the drain valve when over 10 PSI of air pressure is in the tank.J. AIR TANK: The tank is used to store the compressed air.K. POWER CORD: This product is for use on a nominal 115 volt circuit and should be grounded. A cordwith a grounding plug, as K showed, shall be used. Make sure that the product is connected to an outlet having the same configuration as the plug (see Figure 1). No adapter should be used with this product.Check with a licensed electrician if the grounding instructions are not completely understood, or if in doubt as to whether the product is properly grounded. Do not modify the plug provided. If it will notfit the outlet, have the proper outlet installed by a licensed electrician.Improper installation of the grounding plug will resultis necessary, do not connect the grounding wire to either flat blade terminal. The grounding wire is in green outer surface.Figure 1Grounded outlet 115V/13 AGrounding Pin Plug -Page 5-1. Unpack the air compressor and inspect the unit fordamage and parts. If the unit has been damaged or some parts are missing, contact the agent immediately.2. Check the serial tag label to ensure that it has therequired pressure rating for its intended use.3. Take out two(2) wheels(A), two(2) bolts(B), four(4)washers(C), two(2) nuts(D) from the bag and install them on the foot section of the tank. (See Figure 2)4. Unpack the smaller plastic bag with the air filterincluded and have the air filter (A) assembled on the pump. (See Figure 3)5. Locate the compressor according to the followingguidelines:a. Set the compressor in a position near agrounded electrical outlet.b. The compressor must be at least 12 inchesaway from any wall or obstruction, in a clean,well-ventilated area, to ensure sufficient airflow and cooling.c. The compressor must be level to ensureproper drainage of the moisture in the tank.d. In cold weather, store the compressor in aheated building when not in use. This willreduce problems with motor starting andfreezing of water condensation.6. Connect an air hose with a 1/4” NPT fitting kit to thecompressor air line outlet. Figure 2DCAB-Page 6-Figure 3NOTE: The pump is shipped WITHOUT oil. Before starting, thebreak-in oil provided in an oil bottle should be poured in the pump through the oil nozzle. The break-in oil should be changed after 8 hours of operation. To reduce maintenance and repair problems, use only premium compressor oil. SAE 10W-30 all weather air compressor oil is recommended for general use.1. Check the oil level in the pump through the oil sight glass.The pump oil level must be between A1 and A2. Do not overfill or underfill. (See A)2. Turn the pressure switch to the OFF position (See B)3. Open the tank drain valve (See C). Turn in the counter-clockwise direction. 4. Plug in the power cord5. Turn the pressure switch to the ON position (See D). Theunit will start. Allow the unit to run for half an hour to break in the internal parts. After about half an hour, if the unit does not operate properly, shut down immediately and contact Product Service.6. After half an hour, turn the pressure switch to the OFF position.7. Close the tank drain valve. Turn in the clockwise direction.8. Turn the pressure switch to the ON position. The unit willstart and fill the tank to the cut-out pressure and stop.NOTE: The pressure switch will restart the motor automatically as compressed air is used. 1. Before starting, check the oil sight glass to ensure that oillevel in the pump is at the required level.2. Turn the pressure switch to the OFF position.3. Close the tank drain valve.4. Plug in the power cord.5. Turn the pressure switch to the ON position.6. Adjust the pressure regulator to the working pressure ofthe tool.When adjusting from a higher to a lower pressure, turn the knob counterclockwise past the desired setting, and then turn clockwise to reach the desired pressure. DO NOT exceed operating pressure of the tool or accessory being used. 1. Turn the pressure switch to the OFF position. 2. Unplug the power cord.3. Reduce pressure in the tank through the outlet hose. Youcan also pull the relief valve ring and keep it open to relieve pressure in the tank. (See E)Escaping air and moisture can propel debris that drain valve.CLOSEOPENEOFFONBCD-Page 7-Regular maintenance will ensure trouble free operation. The items listed in the chart should be inspected on a regular basis.ITEM DESCRIPTIONSERVICEINTERVALDrain the tank To prevent corrosion of the tank from the inside, the condensation must be drained at the end of every workday. Be sure to wear protective goggles. Relieve the air pressure in the system and open the drain valve on the bottom of the tank to drain.DailyCheck the oil Check the oil level in the pump through the oil sight glass. The pump oil level must be within the red circle. Do not overfill or underfill.DailyCheck the relief valve Pull the relief valve on the ring daily to ensure that it is operating properly and to clear the valve of any possible obstructions.DailyClean the air filter A dirty filter will reduce the unit’s performance and life.To avoid any contamination inside the pump, the filter should be cleaned frequently and replaced on a regular basis. Foam filter should be cleaned in warm and soapy water.WeeklyTest for leakage Check all connections to see if tight. A small leak in any of the tank, hoses, pipe connections or transfer tubes will absolutely reduce the unit’s performance.Spray a small amount of soapy water around the area of the suspected leak with a spray bottle. If bubbles appear, repair or replace the faulty component. Do not over tighten any connections.N/AStorage Before storing the unit for a long period, use an air blow gun to clean all dust and debris from the compressor. Disconnect and coil the power cord up. Clean the filter element and filter housing. Drain all moisture from the tank. Pull the pressure relief valve to release all pressure from the tank. Cover the entire unit to protect it from moisture and dust.N/A-Page 8-NOTE: Troubleshooting problems may have similar causes and solutions.PROBLEM POSSIBLE CAUSE SOLUTIONPower cord not plugged in Plug cord into grounded outlet Pressure Switch in “OFF”positionTurn switch to “ON” positionWrong gauge wire or length of extension cord Check chart on page 2 for proper gauge wire and cord length Motor thermal overload switch tripped Turn air compressor off, wait until motor is cool, then check motor circuit breakerFuse blown or circuit breakertripped-Replace fuse or reset circuit breaker -Check for proper fuse amperage-Check for low voltage conditions-Disconnect any other electrical appliances from circuit or operate compressor on its branch circuitAir tank pressure exceeds preset pressure switch limit Motor will start automatically when tank pressure drops below cut-in pressure of pressure tank. Check valve stuck openRemove and clean or replace Motor will not run or start Loose electrical connections Contact authorized service centerPossible defective motor, capacitor or check valveContact authorized service centerPressure switch does not shut off motor when air compressor reaches cut-out pressure and safety relief valve activatesMove the pressure switch to the OFF position. If the motor does not shut off, unplug the air compressor. If the electrical contacts are welded together, replace the pressure switch.Motor runs continuously when in the Start/Stop optionAir compressor not large enoughCheck air requirement of accessory used. If it is higher than CFM and pressure supplied bycompressor, a larger compressor is needed. Mostaccessories are rated at 25% of actual CFM while running continuously. Regulator does not regulate pressureDirty or damage regulator internal parts.Replace regulator.Fittings leakCheck fittings with soapy water. Tighten or reseal leaking fittings. But do not over tighten. Tank drain valve is open Close drain valveRestricted air intakeClean or replace air filter element. Prolonged excessive use of air Decrease amount of air used Hole in air hose Check and replace if necessaryTank leaksReplace unit immediately. DO NOT attempt to repair.Low pressure or not enough airValve leaksCheck and replace worn parts.Moisture in discharge airCondensation in air tank causedby high level of atmospherichumidity or air compressor did not run long enough.Drain air tank after each use. Drain air tank more often in humid weather and use an air line filter. Poor ventilationRelocate compressor to an area with cool, dry andwell-circulated air.Dirty cooling surfacesClean all cooling surfaces of pump and motorthoroughly.OverheatingLeaking valve Replace worn parts and reassemble with newseals.-Page 9-P/N DESCRIPTION QTY P/N DESCRIPTION QTYcover 11 Shroud 1 12Handle2 Wheel kit 2 13Pressure Switch 1fitting 13 Fan 1 14Adapter4 Capacitor 1 15Regulator 15 Air filter 1 16Pressure gauge 26 Pump/motor assembly 1 17Relief valve 1tank 1 7 Elbow 1 18Airkit 2 plug 1 19Pad8 Oilfill9 Transfer tube w/fins 1 20Drain valve 110 Bleeder tub 1 21Oil sight glass 111 Check valve 1 22Power cord 1-Page 10-。
ELLIOTT__压缩机中文技术手册
控制箱
控制箱安装在机组底座旁，包括控制压缩机运行的电路回路。
控制系统
控制系统是通过进气阀和卸荷阀来调节气体的流量，喘振发生时，控制系
统也可以自动卸荷离开喘振点，控制系统有以下功能：
(1) 机组的启动和停车控制；
(2) 电机电流及进气密度的控制；
(3) 排气压力控制；
(4) 进气节流控制模式；
(5) 间歇性空重车控制模式；
备件
在英文手册第四章中，详尽列出须定期更换的易损件的规格及数量。正常 的维护和库存最低数量的易损件，可使机组维护快捷、紧急抢修的时间极大 地缩短，增加企业生产能力，减少损失，提高效率。
备件的采购
客户向本公司购买备件时，应详细提供以下资料： (1) 设备的型号、系列号或订单合同号；（可参照压缩机的铭牌） (2) 正常维护保养所需备件的明细表及编号； (3) 所需备件名称及数量； (4) 客户自己的详细地址、电话及联系人；
目录
第一章 概述
1-1
简介
1-1
制造厂内测试
1-2
设定值
1-2
机组货运
1-2
存放
1-2
拆箱
1-3
吊运
1-3
区域性服务机构
1-4
备件
1-4
客户培训
1-5
技术手册信息反馈卡
1-5
压缩机机组结构说明
1-5
润滑系统
1-6
冷却水系统
1-6
控制箱
1-6
控制系统
1-6
第二章 设备的安装
2-1
简介
2-1
地基基础
2-1
安装步骤
2-2
可调整安装衬垫
2-2
管路系统
丙烯制冷压缩机601JT透平操作说明书
档案号：手册编号：中石油兰州石化公司60万吨/年乙烯改扩建工程乙烯装置丙烯制冷压缩机601JT透平操作说明书合同号：项目编号：R05T000703制造厂家：Elliott Ebara Turbomachinery Corp.二○○六年四月目录介绍 (1)关于开箱后的操作程序说明 (1)供汽 (2)EBARA公司关于蒸汽纯度指标的说明 (2)安全注意事项 (3)控制系统说明 (4)执行机构 (4)TM25执行机构 (4)正确过滤 (4)跳车阀和节流阀 (5)系统操作 (5)首次开车前的准备工作 (5)关于蒸汽透平系统初次开车的建议 (8)透平脱机运行检查 (9)透平超速试验 (16)调速器超速跳车试验 (16)联机运行检查 (17)稳定透平速度 (18)热矫正检查 (18)振动能级 (18)开车程序 (18)常规操作 (19)机组停车 (19)正常停车程序 (19)紧急停车（跳车指令） (20)运行检查 (20)日常机组运行检查 (20)自动密封蒸汽和泄流系统 (21)旋转装置的运行 (22)透平操作数据表（3－1） (23)冷开车曲线图（3－1） (24)蒸汽透平性能曲线说明 (26)透平预测性能一览表 (27)埃利奥特公司对蒸汽流量与透平轴功率的预测性能曲线 (29)蒸汽流量与透平排气压力的设计操作限定值 (30)第三章：透平操作说明书（兰州60万吨乙烯改造项目丙稀(译者注：请确认plopylene是否拼写有误)制冷压缩机601JT驱动装置）EBARA系列编号：R05T000703机架编号：SNV-9Elliott SNV-9型透平为多级、多阀门、凝汽式、单控制抽汽式蒸汽透平。
本透平则配有旋转装置。
介绍：认真遵循本说明可使设备达到设计性能和长期运行。
设备成功运行关键在于认真安装，仔细开车，并在重大质量修理工作发生之前制定一套维修计划。
设备的开、停车程序依其特殊的设计而定。
本说明书旨在对设备的开、停车程序提供指导。
压缩机使用手册WH40H3N
第一节 1.1 1.2 1.3 1.4 1.5
序言 说明书的范围 总的资料 压缩机的安全预防措施 一般说明 废料副产品
第二节 2.1 2.2 2.3 2.4 2.5
技术数据 一般资料 正常运行情况 压缩机数据 紧固力距 结构材料
第三节 3.1 3.2 3.3 3.4 3.5 3.6
安装 安全注意点 安装要求 运转与开箱 安装步骤 投入运行的准备工作 投运步骤
压缩机使用手册
（包括安装，预防性维护与部件表)
标准 WH40H3N BELLISS & MORCOM 往复式压缩机 (装在你的压缩机上的常规零件的细节请参阅所附的补充。)
安全通知 装置的不正确运行与维护可能会造成伤亡。只有持有授权“工作许可 证”的有能力的工作人员才能在这一装置上操作或工作。同时，这些工作人 员必须在上岗操作以前已通读并理解这本说明书，必须遵守国家劳动立法部 门的有关健康与安全的条文以及现场安全规定。
力工程公司有权不事先通知就改变这一说明书中的任何内容。
1.2.6
保证说明
凡 Allen 动力工程公司 Hamworthy Belliss & Morcom 提供的压缩机 与附
属设备都包括在供货合同的保证中，保证期限也在合同中规定。
所提供设备的设计是优良的而可保证多年无故障运行。然而如果需要
实施保证的索赔(则可用我们的保证索赔)形式文件号 CM4F(共两页)进行索
作的工作人员都必须具备充分能力并能熟悉处理有关这种型式设备的问题并
已统读、理解这一本说明书。
在首先获取所有必要的说明书前不准在设备上进行任何修改或修理工
作。
(2) 得到这本手册
与本设备有关的所有工作人员应能随时得到本手册。
单级压缩螺杆式机压缩机说明书
螺杆空气压缩机使用说明书在安装或第一次起动压缩机前，请仔细阅读本手册，清楚了解压缩机的有关知识以及操作维修的注意事项。
请把本手册与机器一同移交使用者。
本技术手册内有重要的安全信息，应一直与压缩机一起保存。
目录1、产品说明 (2)2、工作原理 (4)3、主要技术参数 (5)4、主要结构 (8)5、管路流程图 (9)6、电气原理图 (10)7、工频控制器基本操作及参数设置 (12)8、变频控制器基本操作及参数设置 (18)9、警告及注意事项 (35)10、设备安装 (38)11、设备操作 (38)12、使用和维护 (40)13、故障和排除 (46)1 产品说明1.1 有关压缩机的说明本公司螺杆压缩机是经多年研究开发的成果。
这些先决条件与高质量标准结合，可保证制造的螺杆压缩机寿命长、可靠性高、运行效益高。
产品能够满足所有环保要求。
1.2 使用范围本系列机器和机组是根据已成熟的技术和公认的安全规则生产的。
然而若出现以下情况，则仍可能对使用者或第三方的生命和肢体造成威胁，或对机器和其他物质财产带来损害：●使用范围不正确●由不合格人员操作●不合理地修改或改变机器●不遵守安全规则因此，任何有权对机器进行操作、维护或修理的人员必须阅读并遵守安全规程。
需要时，可以要求签字对此进行确认。
此外，还必须遵守:●有关的事故防范规则●公认的安全法规●国家法规本系列机器和机组必须在完善的技术条件下使用，必须根据操作手册规定的使用范围和指南进行使用，使用人员必须有安全意识，能充分认识操作机器中存在的危险。
若发生任何功能性故障，尤其是影响安全的故障，都必须及时修理（或请别人修理）！在使用范围内操作机器的含义中，还包括应遵守操作手册中的各项指南，按规定进行检查和保养等。
1.3保养本机必须精心维护，以使螺旋压缩机或压缩机组能满足各种不同要求。
因此必须坚持按规定的保养期限对机器仔细进行维护保养，在工作环境恶劣的情况下尤其应这样做。
服务出现故障或需要备件时，请与特约本公司压缩机商家联系。
荷兰亚特拉斯科波机械有限公司Z型无油压缩机说明书
Oil-free rotary screw compressorsZR 300-750 & ZR 400-900 VSDSetting the standard in energy efficiency, safety and reliability The shortest route to superior productivity is to minimize operational cost while maintaining an uninterrupted supply of the right quality of air.The Atlas Copco Z compressor series is focused on effectively saving energy, ensuring product safety – only oil-free machines exclude contamination risks for 100% – and guaranteeing the utmost reliability around the clock. And not just today, but day after day, year after year, with minimal maintenance cost, few service interventions and long overhaul intervals.Highest reliabilityFor 60 years, Atlas Copco Z compressors have set the benchmark for durability. T hey are built using long-standing internal engineering practices, and are designed and manufactured according to ISO 9001, ISO 14001, ISO 22000 & OHSAS 18001. The high-end ZR uses time-proven state-of-the-art screw technology, cooling and pulsation dampers and providesyou with the highest reliability.100% oil-free compressed airThe ZR offers you 100% pure, clean air that complies withISO 8573-1 CLASS 0 (2010) certification. T his means zero riskof contamination; zero risk of damaged products; zero risk of losses from operational downtime; and zero risk of damaging your company’s hard-won professional reputation. Maximum energy efficiencyThe ZR’s superior oil-free screw elements provide the optimum combination of high Free Air Delivery (FAD) with the lowest energy consumption. Ample sized cooling, low pressuredrops and an extremely efficient drive train result in the highest compressor package efficiency.The most complete packageWith the ZR compressor, Atlas Copco provides a superior solution without hidden costs. T he totally integrated, ready-to-use package includes internal piping, coolers, motor, lubrication and control system. Installation is fault-free, commissioning time is low and no external instrument air is required.You simply plug and run.Global presence - local serviceOur aftermarket product portfolio is designed to add maximum value for our customers by ensuring the optimum availability and reliability of their compressed air equipment with the lowest possible operating costs. We deliver this complete service guarantee through our extensive service organization,maintaining our position as leader in compressed air.100% certified oil-free airAtlas Copco is renowned for designing and manufacturing some of the most durable oil-free screw compressors. T he ZR high-end rotary screw compressor comes out of this strong tradition. Ideal for industries where high-quality oil-free air is key, the ZR offers the highest reliability and safety in combination with low energy costs.Electronics• Clean, dry, high-quality air (Class 0) is essential,produced with optimal energy efficiency.• Applications include the removal of microscopic debris fromthe surfaces of computer chips and computer boards.T extiles• Easy and quick installation.• A completely, fully integrated, ready-to-use solution.Oil & gas• Years of experience in providing compressedair for the oil & gas industry.• 100% oil-free compressed air for control/instrumentair or buffer air.• Strong global support network to provide 24/7 assistance.Automotive• To maximize productivity in the automotive industry,downtime has to be eliminated.• An integrated package designed for long-lastingperformance is crucial.Class 0: the industry standardOil-free air is used in all kinds of industries whereair quality is paramount for the end product and production process. T hese applications includefood and beverage, pharmaceutical, chemical and petrochemical, semiconductor and electronics, the medical sector, automotive paint spraying, textile and many more. In these critical environments, contamination by even the smallest quantities ofoil can result in costly production downtime and product spoilage.First in oil-free air technologyOver the past sixty years Atlas Copco has pioneered the development of oil-free air technology, resulting in a rangeof air compressors and blowers that provide 100% pure,clean air. T hrough continuous research and development,Atlas Copco achieved a new milestone, setting the standard for air purity as the first manufacturer to be awarded CLASS 0 certification. Eliminating any riskAs the industry leader committed to meeting the needs of themost demanding customers, Atlas Copco requested the renowned TÜV institute to type-test its range of oil-free compressors and blowers. Using the most rigorous testing methodologies available, all possible oil forms were measured across a range of temperatures and pressures. T he TÜV found no traces of oil at all in the outputair stream.concentration in total oil content).321High-efficiency coolers and water separator• Corrosion resistant stainless steel tubing.• Highly reliable robot welding; no leakages.• Aluminium star insert increases heat transfer.• Water separator with labyrinth design to efficiently separate the condensate from the compressed air.• Low moisture carry-over protects downstream equipment.3World-class oil-free compression element• Unique Z seal design guarantees 100% certified oil-free air.• Atlas Copco superior rotor coating for high efficiency and durability.• Cooling jackets.2Throttle valve with load/unload regulation• No external air supply required.• Mechanical interlock of inlet and blow-off valve.• Low unload power.1* Only for ZR water-cooled versions.45Powerful motor + VSD• TEFC IP55 motor protects against dust and chemicals.• Continuous operation under severe ambient temperature conditions.• Direct energy savings up to 35% with Variable Speed Drive (VSD) motor.• Full regulation between 30 to 100% of the maximum capacity.4Advanced Elektronikon®• Large 5.7” sized color display available in31 languages for optimal ease of use.• Controls the main drive motor and regulates systempressure to maximize energy efficiency.5Air Water OilWater-cooled ZR PackVSD?VSD: driving down energy costsOver 80% of a compressor’s lifecycle cost is taken up by the energy it consumes. Moreover, the generation of compressed air can account for more than 40% of a plant’s total electricity bill. T o cut your energy costs, Atlas Copco pioneered Variable Speed Drive (VSD) technology in the compressed air industry. VSD leads to major energy savings, while protecting the environment for future generations. T hanks to continual investments in this technology, Atlas Copco offers the widest range of integrated VSD compressors on the market.EnergyEnergy savings with VSDInvestment MaintenanceEnergy savings of up to 35%Atlas Copco's VSD technology closely follows the air demand by automatically adjusting the motor speed. This results in large energy savings of up to 35%. The Life Cycle Cost of a compressor can be cut by an average of 22%. In addition, lowered system pressure with VSD minimizes energy use across your production dramatically.T otal compressor lifecycle cost1 The Elektronikon ® controls both the compressor and theintegrated converter, ensuring maximum machine safety within parameters.2 Flexible pressure selection from 4 to 10.4 bar withVSD reduces electricity costs.3 Specific converter and motor design (with protectedbearings) for the highest efficiency across the speed range.4 Electric motor specifically designed for low operatingspeeds with clear attention to motor cooling and compressor cooling requirements.5 All Atlas Copco VSD compressors are EMC testedand certified. Compressor operation does not influence external sources and vice versa.6 Mechanical enhancements ensure that all componentsoperate below critical vibration levels throughout the entire compressor speed range.7 A highly efficient frequency converter in a cubicleensures stable operation in high ambient temperatures up to 50°C/122°F (standard up to 40°C/104°F).8 No ‘speed windows’ that can jeopardize the energysavings and the stable net pressure. T urndown capability of the compressor is maximized to 70-75%.9 Net pressure band is maintained within 0.10 bar, 1.5 psi.Monitoring and control:how to get the most from the leastThe Elektronikon ® unit controller is specially designed to maximize the performance of your compressors and air treatment equipment under a variety of conditions. Our solutions provide you with key benefits such as increased energy efficiency, lower energy consumption, reduced maintenance times and less stress… less stress for both you and your entire air system.Intelligence is part of the package• High resolution color display gives you an easy to understand readout of the equipment’s running conditions. • Clear icons and intuitive navigation provides you fast access to all of the important settings and data. • Monitoring of the equipment running conditions and maintenance status; bringing this information to your attention when needed.• Operation of the equipment to deliver specifically and reliably to your compressed air needs.• Built-in remote control and notifications functions provided as standard, including simple to use Ethernet based communication.• Support for 31 different languages, including character based languages.• A remote monitoring system that helps you optimize your compressed air system and save you energy and cost.• It offers you a complete insight in your compressed air network and anticipates on potential problems by warning you up-front.*Please contact your local sales representative for more information.SMART LINK *:Data monitoring programOnline & mobile monitoringMonitor your compressors over the Ethernet with the new Elektronikon ® controller. Monitoring features include warning indications, compressor shut-down andmaintenance scheduling. An Atlas Copco App is available for iPhone/Android phones as well as iPad and Android tablets. It allows fingertip monitoring of your compressed air system through your own secured network.The magic formula: turbo + screwObtain the most efficient compressor solution for your high capacity application in the market by combining the advanced turbo technology of the ZH + with the regulating capabilities of the ZR screw compressor with Variable Speed Drive (VSD). Eliminating costly blow-off in all operating conditions, this combination is ideal to achieve the highest return on investment while enjoying the benefits of the ZH + turbo and ZR screw technology.Reduced blow-offWhile turbo compressors are very efficient in turndown,a lot of energy is wasted during blow-off by expanding part of the compressed air into the blow-off valve and silencer. By combining two turbo compressors in an erratically varying air demand, the expensive blow-off is reduced but not completely eliminated.Eliminated blow-offAtlas Copco's unique Variable Speed Drive (VSD) technology closely follows the air demand by automatically adjusting the motor speed. When combining the ZH + turbo compressor and the ZR screw compressor with VSD, the highest efficiency is achieved by completely eliminating blow-off.Find out how much you can saveAtlas Copco can help you map the load/air demand profile of your current compressor and blower installation and indicate potential energy savings with VSD compressors and blowers.For more information, please contact your local Atlas Copco representative.Operation without blow-offOperation with blow-off Hours of operationHours of operation04812162024Protecting your productionUntreated compressed air contains moisture and possibly dirt particles that can damage your air system and contaminate your end product. T he resulting maintenance costs far exceed air treatment costs. Atlas Copco believes in effective prevention and provides a complete range of air treatment solutions to protect investments, equipment, production processes and end products.Increase production reliabilityLow quality air heightens the risk of corrosion, which can lower the life span of production equipment. T he air treatment solutions produce clean air that enhances your system’s reliability, avoiding costly downtime and production delays.Safeguard production qualityCompressed air coming into contact with your final products should not affect their quality. Atlas Copco provides clean,dry air to protect your production and reputation in the market.Supreme energy and cost savingsAtlas Copco’s quality air solutions stand for substantial energy savings all day, every day. T aking technology to a new level,these products achieve maximum cost savings.Proven peace of mindBuilding on know-how and years of experience, the entire Atlas Copco quality air range is produced in-house and tested using the most stringent methods in the industry.A dryer solution for every needUntreated compressed air contains moisture and possibly dirt particles that can damage your air system and contaminate your end product. T he resulting maintenance costs far exceed air treatment costs. Atlas Copco believes in effective prevention and provides a complete range of air treatment solutions to protect investments, equipment, production processes and end products.Dryers overviewTo further protect your investment, equipment and processes, Atlas Copco presents a full line-up of innovative quality air solutions to suit the high quality requirements of your specific application.BD/BD +-70°C/-40°C/-20°C -94°F/-40°F/-4°FHeat reactivated adsorption dryer• Use of electrical heaters for regenerating the desiccant.• Limited pressure drop.• Variants without loss of compressed air.FD+3°C/+20°C +37°F/+68°FRefrigerant dryer• Use of cooling circuit for cooling down compressed air.• Guaranteed pressure dew points.• Lowest energy consumption in all operating conditions.• Air and water cooled variants.MD-20°C/+3°C -4°F/+37°FRotary drum heat of compression dryers• Use of freely available heat of compression.• Negligible power consumption.• Variants with extra heat augmentation for lower dew points.ND-40°C/-20°C -40°F/-4°FXD-S-20°C/+3°C -4°F/+37°FHeat of compression reactivated adsorption dryers• Use of freely available heat of compression.• Limited pressure drop.• Variants for dew point suppression and guaranteed dew point.• Variants without loss of compressed air.XD-G/XD +-G-70°C/-40°C/-20°C -94°F/-40°F/-4°F D e w p o i n t (°C )D e w p o i n t (°F )Flow (l/s)Flow (cfm)+37-4-4012002500300040005000600070008000-94Optimize your systemWith the ZR, Atlas Copco provides an all-in-one standard package incorporating the latest technology in a built-to-last design. T o further optimize your ZR’s performance or to simply tailor it to your specific production environment, optional features are available.Engineered solutionsAtlas Copco recognizes the need to combine our serially produced compressors and dryers with thespecifications and standards applied by major companies for equipment purchases. Strategically located departments within the Atlas Copco Group take care of the design and manufacturing of customized equipment to operate at extreme temperatures, often in remote locations.Innovative technologyAll equipment is covered by our manufacturer warranty.The reliability, longevity and performance of our equipment will not be compromised. A global aftermarket operation employing 360 field service engineers in 160 countries ensures reliablemaintenance by Atlas Copco as part of a local service operation.Innovative engineeringEach project is unique and by entering into partnership with our customers, we can appreciate the challenge at hand, ask the relevant questions and design the best engineered solutionfor all your needs.Options• : Optional- : Not availablePlease note the availability of the option depends on the chosen configuration.ZR 300-750(1) Unit performance measured according to ISO 1217, Annex C, Edition 4 (2009).Reference conditions:- Relative humidity 0%.- Absolute inlet pressure: 1 bar (14.5 psi).- Intake air temperature: 20°C/68°F.FAD is measured at the following working pressures: Fixed speed:- 7.5/8.6 bar versions at 7 bar.- 10/10.4 bar versions at 9 bar.For VSD: at their maximum working pressure.(2) A-weighted emission sound pressure level at the work station (LpWSAd).Measured according to ISO 2151: 2004 using ISO 9614/2 (sound intensity scanning method).The added correction factor (+/- 3 dB(A)) is the total uncertainty value (KpAd) conform with the test code.ZR 400-900 VSD (50/60 Hz)(1) Unit performance measured according to ISO 1217, Annex C, Edition 4 (2009).Reference conditions: - Relative humidity 0%.- Absolute inlet pressure: 1 bar (14.5 psi). - Intake air temperature: 20°C/68°F .FAD is measured at the following working pressures:Fixed speed:- 7.5/8.6 bar versions at 7 bar. - 10/10.4 bar versions at 9 bar.For VSD: at their maximum working pressure.(2) A-weighted emission sound pressure level at the work station (LpWSAd).Measured according to ISO 2151: 2004 using ISO 9614/2 (sound intensity scanning method).The added correction factor (+/- 3 dB(A)) is the total uncertainty value (KpAd) conform with the test code.DimensionsCA BCOMMITTED TO SUSTAINABLE PRODUCTIVITY2935 0366 20 © 2017, A t l a s C o p c o , B e l g i u m . A l l r i g h t s r e s e r v e d . D e s i g n s a n d s p e c i fi c a t We stand by our responsibilities towards our customers, towards the environment and the people around us. We make performance stand the test of time. T his is what we call – Sustainable Productivity.。
压缩机应用手册
• • • •
６－启动继电器 检查启动继电器是否符合标准。 6.1 PTC继电器 用电阻表测量端子之间的电阻。在室温条件下，其 数值必须接近额定的数值： • 继电器－PTC电阻（Ω） • QP2-15 15+3-4 • JTX-520F 33±15%
• 7 - 启动电容器 • 7.1 启动电容器不合适 • 检查电容和电压值是否适合压缩机。如果电容值 不对，更换推荐的电容器。 • 7.2 启动电容器有故障 • 检查输出电压与电容器上标注的电压相同。 • 注意：不要触摸已充电的电容器端子，可能致人 死亡。 • 如果电容器泄漏或有裂逢，必须更换。
• ５－热保护器 • 5.1 过载保护器不合适 • 检查是否使用推荐的过载保护器。如果没有，更换规定的 启动继电器和保护装臵。如果有必要，向厂家咨询。 • 5.2 过载保护器有故障 • 3/4″圆盘热保护器 • 检查端子是否氧化，双金属热保护器圆盘是否变形。同时 检查端子之间是否有连续性。如果受到损坏或没有电流， 更换保护器。 • 热保护器 4TM • 检查端子是否氧化（插头和插座），它们之间是否有连续 性。如果受到损坏或没有电流，更换4TM保护器。
举例说明： 冰箱制冷过度（冰箱主要故障表中的编号１－第一部分）。 可能的原因： 连接盒中错误连接。 步骤： 第2.2条．在手册中找到该条目时，你会读到： 参照冰箱电路图，检查连接点。如果连接正确，再回到表 中，你会在第一栏中找到另一个１。这可能是该故障的另 一个原因： • 温控器不能关闭。你会在同一行中找到应采取的步骤（第 4.3条）。查找手册的该条目，就会看到应采取的步骤： 检查是否正确安装了温控器球管。把温控器的旋钮转到最 低点（最不冷），检查压缩机是否断开。如果故障还在， 就更换温控器。如果需要，你还会找到故障的其它原因， 每一种原因就会有相应的解决步骤。
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安装步骤
2-2
可调整安装衬垫
2-2
管路系统
2-3
控制系统管线连接
2-15
环境限制
2-15
现场接线
2-15
电源
2-15
电机驱动压缩机
2-16
选项
2-16
控制气源
2-16
进气导叶或蝶阀
2-17
旁通阀
2-17
其它现场连线
2-17
压缩机的驱动电机
2-17
电机驱动油泵
2-17
加热器
2-18
电机启动器
2-18
存放
压缩机机组尽量在室内存放，保持存放处清洁干燥，避免极端温差。虽
然压缩机机组在货运之前已做了防锈处理，但是随着压缩机机组在室外存放
时间的延长，机组的防锈效果也会随之降低。而且室外存放，如环境温差大、
湿度大等等，更有甚者，有些国家和地区空气中的盐份含量很大，这些都会
对压缩机机组室外存放产生恶劣影响。所以应避免在极端环境中储存。
(6) 自动双重复合控制模式；
(7) 自动开/停车控制；
(8) 喘振保护功能；
(9) 报警和自动跳机控制；
(10) 数据参数保存功能；
表 1—2 基本参数
型号：xxx DAx
重量： 压缩机、基座、冷却器、其它等
xxxx 磅 (xxxx 公斤)
电机（参照电机说明书）
轴承： 小齿轮—可倾瓦块式止推滑动轴承
润滑系统
2-18
为第一次启动作准备
2-18
传动轴对心
2-18
偏离设计工况
2-24
第三章 操作
3-1
操作原理
3-1
安全预防
3-2
控制盘预热
3-2
准备第一次启动
3-2
当前日期和时间
3-3
人工启动和自动启动
3-3
运行检查
3-8
密封空气系统
3-9
紧急停机
3-9
手动关机
3-10
自动关机
3-11
确认报警和跳机
3-12
喘振
3-13
喘振检测
3-13
第四章 维护保养
4-1
简介
4-1
定期维护
4-1
齿轮箱
4-3
压缩机机壳和扩压器
4-4
传动齿轮轴承
4-5驱动齿轮来自4-6小齿轮轴承4-7
碳环密封
4-9
叶轮
4-10
小齿轮
4-14
小齿轮浮动间隙和
叶轮轴向间隙
4-16
主油泵
4-18
辅助油泵
4-19
更换油过滤器芯
4-19
油冷却器
备件
在英文手册第四章中，详尽列出须定期更换的易损件的规格及数量。正常 的维护和库存最低数量的易损件，可使机组维护快捷、紧急抢修的时间极大 地缩短，增加企业生产能力，减少损失，提高效率。
备件的采购
客户向本公司购买备件时，应详细提供以下资料： (1) 设备的型号、系列号或订单合同号；（可参照压缩机的铭牌） (2) 正常维护保养所需备件的明细表及编号； (3) 所需备件名称及数量； (4) 客户自己的详细地址、电话及联系人；
润滑系统
润滑系统包括主油泵、辅助油泵、油过滤器、油冷却器、油压控制阀、压 力和温度传感器、油箱、温控阀、油加热器和必要的管路、接头及阀门。细 节请参照第五章润滑系统。
冷却水系统
冷却水的作用，是保证压缩气体和润滑油温度保持在设计的范围内。中间 冷却器的冷却管被设计成带翅片型式的壳管；润滑油冷却器为壳管式。冷却 水从管内流过，润滑油及压缩气体从管外通过，以达到冷却的目的。
水平剖分式碳环密封可防止压缩气体沿着小齿轮轴向窜入齿轮箱内；同 时也可防止齿轮箱中的润滑油窜入蜗室中；弹簧背衬环型径向式骨架油封， 可防止润滑油沿着大齿轮轴外泄。
PAP 压缩机主机安装在机组的底座上，底座靠近驱动机端有润滑油油池，
1-５
底座靠近压缩机主机下安装有一、二级中间冷却器（或单级中间冷却器）， 控制操作面板和润滑油泵管路分别安装在底座的两侧。
典型吊绳 布置
典型吊绳 布置
吊杆
吊钩
横撑架
应有足够的 高度以防止 横撑架弯曲 变形
应有足够 的高度以防 止横撑架弯 曲变形
吊耳
如图所示 PAP PLUS 空压机组有 4 个吊耳。不要试图 用其他与图示不同的方式或起吊位置来起吊机组。否 则会产生危险或对机组造成损坏。
1-３
调整起吊缆绳的适当长度和吊钩位置，让吊钩处于压缩 机的重心上以确保起吊过程中机组水平平稳； X1/1、X1/2 和 X1/3 的尺寸长度要相等或小于 X1、X2 和 X3 尺寸，以保持起吊平稳； 横撑架的强度及刚性，应满足起吊时所能承受的弯曲负荷； 在起吊过程中，在带有*处的起吊缆绳，注意避免移动或错位； 在起吊过程中，勿碰撞进、排气管路和机组其它部件。
上，以免造成不必要的损坏和资金浪费； (5) 定期检查备件库房，经常保持备件表面清洁，必要时对未做防锈处理
的备件表面，进行防锈处理；
客户的培训
根据客户使用的不同型号产品，我公司提供相应机型产品的运行操作及维 护保养的培训工作，具体培训过程及组织落实，请与当地 ELLIOTT 公司服务 机构联系。
技术手册信息反馈卡
控制箱
控制箱安装在机组底座旁，包括控制压缩机运行的电路回路。
控制系统
控制系统是通过进气阀和卸荷阀来调节气体的流量，喘振发生时，控制系
统也可以自动卸荷离开喘振点，控制系统有以下功能：
(1) 机组的启动和停车控制；
(2) 电机电流及进气密度的控制；
(3) 排气压力控制；
(4) 进气节流控制模式；
(5) 间歇性空重车控制模式；
设定值
每台设备在出厂前，ELLIOTT 压缩机组的工况已设定好，如本章末表 1-3 所示。表 1-3 上未列出的未购选项包括何种控制模式、启动／停车模式均未 完成设定准备。换而言之，“未完成设定准备”表示控制盘尚未为之完成编 程。
注意
表 1-3，所提供的工况参数，并不是代表 ELLIOTT 公司供货 范围。传感器值、按键选择、压力开关等，可由客户自行提 供，也可由 ELLIOTT 公司提供。可参照购买合同。
吊运
吊运压缩机组前应计划好适合安装位置的起吊设施。 为了起吊方便，压缩机机组底座四周，都有专为吊绳悬挂所设计的吊耳或 吊孔。在起吊过程中，应特别留心注意起吊缆绳或起吊工装是否触碰压缩机 机组上其它部件，以免发生意外或损坏。参照附图 1-1，建议使用横撑架，目 的就是为避免起吊缆绳触碰设备部件。
附图 1-1 起吊工装布置图（供参考）
进气节流调整过程
6-19
比例频带和复位
6-20
电机保护
6-20
信息传递
6-21
远程开机/关机
6-21
密封空气压力开关
6-22
用户可以选购的项目
6-23
第七章 故障排除
7-1
简介
7-1
模拟输出检测过程
7-1
数字输入/输出继电器盘
7-1
表 7-1 故障排除指导
7-3
第一章 概 述
简介
本技术手册是为购买本公司 ELLIOTT 产品设备的客户专门提供的，本公司 独立完成设计制造主机、辅助设备、润滑系统。对于设备的安装就位、运行 操作及维护保养方面的相关人员应熟读本技术手册.
第七章：故障排除 能够分析和解决常见的运行故障。
第八章：附属设备及附件（注：中译本不含本章） 包括产品系列详细参数及结构布置图、总图及零部件图。
第九章：PAP PLUS 压缩机（注：中译本不含本章） 机组总图和零部件图。
1-１
制造厂内测试
PAP Plus 压缩机机组，在出厂前，已完成组装，并进行过详细的测试和 试运行。测试项目主要包括控制系统、安全保护装置的可靠性、电器系统、 气动系统及机械系统，均经检查并达到合格要求。
以上型号的第一级叶轮都装配在低速小齿轮轴上，第二级和第三级叶轮被 装配在高速小齿轮轴的两端，蜗壳蜗室包住叶轮。
大齿轮驱动小齿轮轴，齿面为斜型设计，装配在可水平剖分的齿轮箱中， 小齿轮轴被各自的可倾瓦块式滑动轴承固定在水平轴线上，轴套式滑动轴承 固定大齿轮的位置，小齿轮轴和大齿轮轴各自的支承配合滑动表面都注有巴 氏合金，以增加轴的耐磨性,可倾瓦块式止推轴承和小齿轮上的止推环可抵消 轴向推力，使叶轮运转更平稳、振动更小。
1-４
(5) 准确的到站、到货地址及收货人及装运要求；
备件库存
库存一定数量的备件，相应地要占用一定数额的资金，为了保管好这部 分备件，仓库的管理工作应采用以下措施：
(1) 经常检查备件规格、数量及保存情况，尤其是对未做防锈处理过的备 件表面进行防锈处理；
(2) 用标签或标记，指示零部件存放位置，以方便备件管理； (3) 备件库房应保持清洁、干燥； (4) 小备件应尽量上架存放，大型或重型备件应装箱并合理的存放在地面
机组货运
在起运前，PAP 压缩机机组安装在垫板上，包装方式是按通用商务标准制 造。在货运及存放过程中应避免粗鲁搬运。为了防止装运和储存过程中机组 生锈，未涂漆的机械外表面都经过防锈处理。如果是出口机组，机组要安装 在有特别支撑及防水材料的包装箱中。
注意
由于运输限制，有些部件会分开装箱，具体详细 情况可参照每个产品包装箱内的装箱单。
公司制定技术手册时，是以客户的需要为依据。如您需要特别资料说明， 而在本手册上无法找到正确解答，请填写在信息反馈卡上，直接寄给我公司。 当填写信息反馈卡时，应尽可能详细写出所涉及零部件的资料、页码、编号、 图页等，也可直接写出你们的要求，我公司将给你一个圆满的答复。
压缩机机组结构说明
型号 DA3 为三级离心式压缩机； DA2 为二级离心式压缩机；