机的润滑油压力过高时,会影响机的起动性能和经济性,严重时会出现撑破机油弗列加滤清器等部件的事故。需要注意的是,在冬季,刚起动机后会发现润滑油压力偏高,待温度升高时油压会降至正常值。(1)润滑油粘度过大 机润滑油的粘度牌号应根据使用的环境温度和零件的最大温度来选择。如果用错或牌号不对,机运转时会因润滑油粘度过大而导致流动性能变差,从而出现润滑油压力过高的故障。因此,应正确地选用润滑油,随着季节变化或地域不同来合理地选用润滑油。(2)机的工作运行温度过低 机工作运行正常时,温度会逐渐升高,最终稳定在一个正常范围内。由于润滑油的粘度随着温度的升高而减小,所以如果机工作运行时,温度一直过低,润滑油的粘度就会过大而导致流动性能变差,从而出现润滑油压力过高的故障。(3)压力调节阀弹簧压力调整不当或卡死 压力调节阀通过顶开阀门使部分润滑油回流到油底壳来保持润滑油压力在正常范围内。若压力调节阀的弹簧预压力调整过大或卡死,当机的油压过大时,阀门不能及时打开,就会导致机的润滑油压力过高。此时,应将其开启压力调整至规定值。(4)机油弗列加滤清器滤芯堵塞,且旁通阀开启困难 旁通阀的作用是当机油弗列加滤清器过脏而堵塞时,润滑油压力升高,顶开旁通阀阀门使润滑油直接进入主油道。如果旁通阀出现卡滞或者开启压力调得过高,弗列加滤清器被堵塞时就不能及时顶开,润滑油的流通阻力增大,油压就会过高。因此,一方面应按规定及时更换机油弗列加滤清器;另一方面要正确地调整旁通阀的开启压力,必要时应更换。(5)机油压力传感器失效 正常情况下,机油压力传感器的阻值是随着压力的变化而有规律的变化,但是当机油压力传感器失效后阻值过低时,机油压力表的指示值就会过高。此时可将传感器的接线断开,然后用万用表进行测量,若阻值过低则说明传感器失效。(6)机油压力表失效 机油压力表指示值过高时,经过测量机油压力传感器没有损坏后,可用万用表测量压力表的阻值,若阻值过低,则说明机油压力表失效。(7)润滑系统油道堵塞 长期不更换润滑油或者机的工作运行环境较差时,油道会出现堵塞的现象。当主油道以后的油道堵塞时,润滑油的流通阻力变大,润滑油压力便会过高。可在机空载运转时,慢慢地松开各油管接头,根据涌出润滑油的情况确定故障部位,然后对堵塞油道进行清洗。(8)曲轴主轴承、连杆轴瓦等配合间隙过小 长期使用低级别或者低性能的机润滑油时,会在机内部形成较多的油泥和积炭,导致曲轴主轴承、连杆轴瓦等配合间隙过小,从而出现润滑油压力过高的现象。(9)曲轴箱的通气孔堵塞 曲轴箱的通气孔主要用来排除燃烧室漏入的少量高压气体、从而保持压力平衡。如果通气孔堵塞就会导致曲轴箱内的压力过高,特别是当活塞环与气缸的配合间隙过大时,进入曲轴箱的高压气体就会过多,从而导致润滑油压力过高。
动力设备(深圳)有限公司,集团旗下专业运营宣城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宣城干式变压器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宣城干式变压器组生产基地,宣城干式变压器售后服务点可辐射中国各省会及地级市区域。l宣城干式变压器区分:移动式宣城干式变压器、固定式宣城干式变压器、超静音式宣城干式变压器、机组载式宣城干式变压器。l常见宣城干式变压器功率(千瓦)范围:50KW至1000KW功率段。更多有关宣城干式变压器的最新产品和技术内容,请登录宣城干式变压器官网:
http://www.11fdj.com宣城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安装宣城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。nCTT(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。n低温冷却后,两泵双回线(2 p2l)。n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。nG-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。n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.lgenerator to distinguish: portable generators, stationary generators, silent type generator, vehicular power generators.lcommon 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.
nCTT (Cummins Turbo Technologies) HX82/HX83 turbo-chargingutilizes exhaust energy with greater efficiency for improved emissions and fuel consumption. nLow Temperature After-cooling- Two-pump Two-loop (2P2L). nFerrous Cast Ductile Iron (FCD) Pistons- High strength design delivers superior durability. nG-Drive Integrated Design- Each component has been specifically developed and rigorously tested for G-Drive products, ensuring high performance, durability and reliability. nService 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. nCoolpac 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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