简述了密封原理和密封失效与密封间隙的关系。
The article mainly introduces seal principium and the relation of seal invalidation and seal gap.
介绍了吸收塔上视镜密封失效的原因分析及改进措施。
In this article, the seal failure of optical glass was analyzed, and the improving method was introduced.
石墨炭化是使用碳—石墨环时密封失效的主要原因之一。
Carbonization is the use of carbon graphite - graphite seal ring when one of the main reasons.
油浆泵在运行过程中，多次因机械密封失效而停泵紧急检修。
In the operation of the oil slurry pump, the pump had to be shut off several times because of the leakage occurred in the mechanical seal.
试验结果表明，导致密封失效的主要原因是后端盖刚度设计过低。
Tests indicate that main cause for sealing failure is that rigidity of the rear cover is too low.
主泵为核电厂一回路压力边界，可能由于密封失效发生LOCA事故。
Because of the RCP be in primary circuit pressure boundary, LOCA accidents that may occur due to the seal failure.
简要介绍了机械密封失效的情况，并分析了机械密封失效的主要原因。
The circumstance of mechanical seal invalidation is simply introduced and the main cause of mechanical seal installation is analyzed in this paper.
若墙体未枯燥、尘埃未铲除洁净，墙体释放出的水蒸气及会使密封失效。
If the wall is not dry, dust is not clean, the release of water vapor from the wall and seal failure.
油箱应该在外部密封失效、设备关闭的一段时间内具有防潮屏障的功能。
The oil reservoir shall act as a barrier to trap moisture and provide sufficient time for a planned shutdown in the event of an outer seal failure.
统计了机械密封损坏的各种情况，认为冷却水结垢是密封失效的主要形式。
After all kinds of mechanical seal damaging are estimated, it is considered that the seal malfunction is mainly because of cooling-water scaling.
在使用中其底益密封经常发现垫子破损，造成密封失效，严重影响预热器的正常工作。
During operation, the seal of cover found always broken, Created seal to lose efficacy and influence on normal work of preheater.
常见的减振器的泄漏形式主要有活塞磨损、底阀密封失效、导向座及密封组件失效等。
Based on the simulation model a simulation piston gap, at the end of the valve, the piston rod and sealing ring gap of oil leakage caused by the shock absorber failure.
本文从橡胶密封件密封失效的原因着手，系统地论述了密封件设计、选型、装配等要素。
The design, selection, assembly of seals are systematically discussed starting form the cause of the sealing failure of rubber seals.
法兰密封失效是核压力容器的最基本失效形式之一，研究其密封性能具有十分重要的意义。
One of the basic failures of reactor pressure vessel is the failure of flange sealing system, so it is very important to study the performance of its sealing system.
通过各个环节的把关，消除闸板防喷器密封失效的不利因素，保证闸板防喷器使用安全可靠。
In this way, the undesired factors causing sealing failure during each link can be avoided to ensure a safe and reliable application of ram BOP.
目前，回转窑所用的挡轮液压缸存在的问题是内泄大、密封失效、产生爬行及使用寿命低等。
At present, the problems of hydraulic cylinder is about serious internal leakage, seal failure, crawling and the short service life.
分析了乙烯锅炉吹灰器密封失效的原因，并介绍了对吹灰器密封结构的改造及改造后的密封效果。
The failure cause of the seal structure of the dust blowing device of an ethylene boiler was analyzed, the retrofit of the seal structure and the retrofit result were presented.
作者对机械密封端面的磨损特性进行了分析，以指导和改进机械密封的设计及对密封失效的判断。
Wears performance of mechanic face seal is analysed. Basis law for design and estimation and amelioration of mechanic seal's invalidation is provided.
据统计，油管失效86%发生在螺纹联接处，而螺纹联接失效表现在两个方面：密封失效和滑脱失效。
Based on the statistics, 86%of tubing failure occurs in the place of thread joint, the failures of thread joint have two aspects, seal failure and slippage failure.
叙述了离心压缩机浮环密封的结构、原理、浮环密封失效的原因和危害，以及防止密封失效应采取的措施。
Structure and principle, failure reason and harm of compressor floating ring seal, and measures which prevented the seal from failing are introduced.
在一定法兰连接螺栓预紧力作用下，法兰密封泄漏明显减少，从而解决了热交换器封头法兰密封失效的问题。
Under certain pre - tension from flange joint bolt, leakage of flange sealing had an obvious decrease, thus resolving sealing failure in cover flange of heat exchange.
本文从泵的角度对螺旋密封“气吞”及“密封失效”现象作出了合理、全面的解释，并提出一种新型组合螺旋密封。
In this paper, based on the work mechanism of the flow pump, gas ingestion and failure of helical seal are fully explained. Moreover, a new type of combined helical seal is put forward.
水泵轴连轴承失效形式主要为：心轴断裂，心轴滚动表面、外圈沟(滚)道表面、滚动体表面的磨损和疲劳剥落及密封失效。
Main failure modes of automobile water pump bearings are: breakage of shaft, wear and fatigue flaking of rolling contact surfaces.
从对齐鲁石化LDPE装置的机组停车原因分析，密封失效导致的压缩机停车次数占到80%以上，直接影响了生产的正常运行。
According to our cause analysis, the shutdown times caused by the seal failure account for more than 80% in all malfunctions of the compressor in Qilu Petrochemical LDPE plant.
设计的一种气体保护填料迷宫组合密封结构可以解决粉体介质密封因粉体颗粒进入密封装置引起密封表面磨损导致密封失效问题。
A gas protection seal for powder was designed to solve the problem that powder into seal makes seal surface wore, which results in seal failure.
文章讨论了航空波导结构密封失效的故障机理，表面活性、胶层弹性模量、热膨胀、以及因环境变化产生应力等引起密封失效的有关因素。
Study on failure mechanism shown: the main cause is the deformation stress due to environment changes that resulted high leakage failure ratio during environment conditional tests.
调查显示，挑战者号发射当日低温，导致火箭推进器上橡胶O行环密封圈失效，进而引起爆炸性气体泄露。
Theinvestigation showed that low temperatures on the day of the launch caused arubber “O-ring” seal on one of the rocket boosters to fail, which led to a leakof explosive gases.
针对其主要失效形式，对轴承的内部几何形状及保持架和密封结构进行了改进。
Aimed at main failure modes, the internal geometry of bearing and the structure of cage and seal are improved.
针对炼油、化工装置中应用广泛的换热器的失效问题，从腐蚀、密封件失效等方面入手，分析了换热器的失效原因。
Causes of failure are analyzed for heat exchangers widely applied in refining units and chemical units from the viewpoints of corrosion and sealing element failure.
针对炼油、化工装置中应用广泛的换热器的失效问题，从腐蚀、密封件失效等方面入手，分析了换热器的失效原因。
Causes of failure are analyzed for heat exchangers widely applied in refining units and chemical units from the viewpoints of corrosion and sealing element failure.
应用推荐