摘要
水锤现象普遍客观存在。它对低位罐加油机和高位罐加油机的影响及破坏力是不一样的,此差异主要的是由于这两种加油机泵的不同结构造成的。低位罐加油机的泵,其油气分离室可以充当压力冲击的"缓冲囊",破坏力有限。高位罐加油机的泵,其内部没有吸收冲击的缓冲地带,因此破坏力比前者大,并可能损坏元器件、破坏液压件的密封、造成泄漏等。把单向阀从高位罐加油机的泵进油口处取消后,其液压系统与储油罐连通一体,可以吸收压力冲击,排除了故障隐患。在液压系统中合理设置类似气囊的压力缓冲件,可以有效削减水锤效应的压力峰值,减少液压元件损坏和系统泄漏。
The water hammer phenomenon generally objectively exists.The damage to the low-oil tank metering pump dispensers and to the high-oil tank metering pump dispensers by water hammer is not the same.The main reason is because the two fuel pumps are different of the structure cause such differences.Because of the oil and gas separation chamber of the pump of the low-oil tank metering pump dispensers,it can act as a buffer capsule of the impact of water hammer pressure,so the destructive power is limited.But the high-oil tank metering pump dispensers does not have the buffer capsule for absorbing the water hammer pressure,so the destructive power is great.The water hammer pressure impact damage to the hydraulic seal,causing a leak.If we cancel the one-way valve in the inlet of the pump,the hydraulic system and the tank can be connected one can absorb the pressure of impact,the fault can be resolved.Reasonable to set the same as the air bag pressure buffer parts in the hydraulic system,can effectively reduce the peak value of the pressure of the water hammer effect and reduce leakage of the hydraulic system and damage of hydraulic components.
出处
《液压气动与密封》
2012年第8期3-5,共3页
Hydraulics Pneumatics & Seals
关键词
水锤效应
冲击
压力峰值
低位罐
高位罐
泄漏
气囊
water hammer effect
impact
peak value of the pressure
low-level oil tank
high-level oil tank
leak
air bag
