（1）故障现象 一台机组用B系列机，保修原因为机无力，排气管冒黑烟。进一步检查，加机油口及曲轴箱通风管处窜油烟，用长螺钉旋具或金属棒顶在气缸体中上部，能听到类似金属敲击的异响，异响随转速的升高而加重。初步判断为气缸套或活塞环严重受损。（2）故障查找分析 拆下6个缸的活塞连杆组件，检查各缸缸套均有磨损，其中第6缸缸套最大磨损为0.15mm，圆柱度为0.08mm，圆度为0.05mm。，活塞环也严重受损，且不规则，一边薄一边厚，最大相差1.5mm，因而，该机需要大修，该机组投入运营仅4个多月，行程3万多公里，可以判断该机属于早期磨损。冷却系统工作运行不良是机早期磨损的主要原因。B系列机冷却系统的特点是水套小，水道孔狭窄。以6BT系列机为例，散热器管界面截面尺寸仅为14mm×2.5mm。按规定，使用环境温度在-40℃以上时，要求使用50%水+50%乙二醇防锈防冻液。但该机组驾驶员将未做任何处理的自来水直接加注到水箱中，由于自来水硬度高（特别是该地区） ，水在狭窄的水道中容易形成水垢，将水道堵塞，造成通水不畅，水温过高，导致冷却效果降低，气缸易早期磨损。此外，冷却系统中的水泵、节温器等元件有损伤时，也会导致冷却系统的能效降低，应立即更换总成或修复。进气系统失效也是导致早期磨损的重要原因。据相关资料指出，当空气弗列加滤清器丧失工作运行能力后，气缸磨损将增加8倍，活塞磨损将增加3倍，活塞环磨损将增加9倍，从而大大缩短了机的工作运行寿命。经检查，发现驾驶员未对空气进气系统特别是空气弗列加滤清器予以良好的保养和维护，空气引入管及空气弗列加滤清器的进气卡箍在机组辆运动中松脱，加之大气状况差，导致气缸磨料磨损。活塞环故障也能导致气缸早期磨损，B系列机对活塞环的要求较高。当气环磨损后端隙变大或油环磨损后控制润滑油能力变差时，就会造成润滑油上窜，在活塞环槽内形成积炭，使活塞环卡死，划伤气缸壁，同时部分混合气窜入曲轴箱内，漏入曲轴箱稀释润滑油，恶化润滑油品质。，是气缸壁润滑环境恶化，导致气缸壁早期磨损。使用不当也会导致气缸早期磨损。该机组为追求经济效益，经常超载重载，并人为将B系列机的标准怠速750r/min调高至900r/min，以避免熄火。这样，活塞与气缸壁工作运行条件更为恶劣，气缸壁易烧蚀而造成早期磨损。综上所述，针对机气缸早期磨损的原因，汽机组驾驶和维修人员在驾驶过程中和对机组辆进行维修时，应注意下列问题：①冷却系统应加注防冻液，并使用添加剂；②不要随便增大汽机组负荷，调高机怠速转速；③修理装配过程中应按标准操作，安装合格配件；④注意日常维护及保养，特别是进气系统。
动力设备（深圳）有限公司，集团旗下专业运营乌兰察布干式变压器的销售业务及其售后服务，是中国区获得授权的乌兰察布干式变压器OEM成套厂家，长期与中字央企、大型房地产商、国际连锁酒店、著名建筑企业等单位建立战略合作伙伴关系。动力在中国布局五大乌兰察布干式变压器组生产基地，乌兰察布干式变压器售后服务点可辐射中国各省会及地级市区域。?乌兰察布干式变压器区分：移动式乌兰察布干式变压器、固定式乌兰察布干式变压器、超静音式乌兰察布干式变压器、机组载式乌兰察布干式变压器。?常见乌兰察布干式变压器功率（千瓦）范围：50KW至1000KW功率段。更多有关乌兰察布干式变压器的最新产品和技术内容，请登录乌兰察布干式变压器官网：http://www.11fdj.com乌兰察布干式变压器组的技术指标与其稳定性领先全球：高压注入(HPI)PT全权电子燃油系统。HPI G-Drive采用PT燃油系统由控制系统(GCS)控制器,这是提供off-engine安装乌兰察布干式变压器组的控制面板。量子控制一个特定的燃料系统板与HPI-PT燃油系统接口,提供了一个引擎保护包给大客户的灵活性和成本有效的替代控制设计和完整的权威electroni的好处。CTT(涡轮增压技术)HX82 HX83涡轮增压利用排气能量与更高的效率改进的排放和燃料消耗。低温冷却后,两泵双回线(2 p2l)。黑色金属铸造球墨铸铁(FCD)活塞-高强度设计提供卓越的耐久性。G-Drive集成设计,每个组件都有专门为G-Drive产品开发和严格的测试,确保高性能,耐久性和可靠性。服务和支持——G-Drive以上信息由深圳动力官方发布，未经允许请勿转载！Cummins power equipment (shenzhen) co., LTD., corp., a professional operating cummins diesel generator sales and after-sales service, is China authorized OEM kit manufacturer of diesel generator, and for a long time in the state, large real estate developers, famous international hotel chain, construction enterprises and other units to establish strategic cooperative partnership. Cummins power layout in China five largest production base for diesel generator set, generator after-sales service point radiation China provinces and cities area.?generator to distinguish: portable generators, stationary generators, silent type generator, vehicular power generators.?common range of generator power (kw) : 50 kw to 1000 kw power.More about the latest products and technology content diesel generators, please log in the generator's official website:
http://www.11fdj.comCummins diesel generator set technical indicators and leading global stability:Cummins High Pressure Injection (HPI) PT full authority electronic fuel system.The HPI PT fuel system is managed by a G-Drive Governor Control System (GCS) controller, which is provided for off-engine mounting in the genset control panel. The Quantum Control has a specific fuel system board to interface with the HPI-PT fuel system and provides an Engine Protection package giving greater customer flexibility and cost effective alternatives in the control design and the benefits of Full Authority electronic control.CTT (Cummins Turbo Technologies) HX82/HX83 turbo-chargingutilizes exhaust energy with greater efficiency for improved emissions and fuel consumption.Low Temperature After-cooling- Two-pump Two-loop (2P2L).Ferrous Cast Ductile Iron (FCD) Pistons- High strength design delivers superior durability.G-Drive Integrated Design- Each component has been specifically developed and rigorously tested for G-Drive products, ensuring high performance, durability and reliability.Service and Support- G-Drive products are backed by an uncompromising level of technical support and after sales service, delivered through a world class service network.Coolpac Integrated Design-Products are supplied complete with cooling package and air cleaner kit for a complete power package. Each component has been has been specifically developed and rigorously tested for G-Drive products, ensuring high performance, durability and reliability.
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