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金属波纹管的耐压性分析!

作者: admin    来源:http://www.laobingguandao.com  时间:2019-08-28    人气:
  金属波纹管作为一种柔性耐压管件安装于液体输送系统中,用以补偿管道或机器、设备连接端的相互位移,吸收振动能量,能够起到减振、消音等作用,具有柔性好、质量轻、耐腐蚀、抗疲劳、耐高低温等多项特点。
  Metal bellows, as a flexible pressure-resistant pipe fittings, are installed in the liquid transportation system to compensate for the mutual displacement of the connecting ends of pipes or machines and equipment, absorb vibration energy, and can play the role of vibration reduction and silencing. They have many characteristics, such as good flexibility, light weight, corrosion resistance, fatigue resistance, high and low temperature resistance.
  波纹管在常温时,波形上不发生塑性变形所能承受的大静压力,即为波纹管的大耐压力在一般情况下,波纹管是在一定的压力(内压或外压)下工作的,所以它在整个工作过程中必须承受这个压力而不产生塑性变形。波纹管的耐压力实际上属于波纹管的强度范畴。
  At room temperature, the maximum static pressure that bellows can withstand without plastic deformation occurs in the waveform, that is, the maximum resistance pressure of bellows. In general, bellows work under certain pressure (internal pressure or external pressure), so it must withstand this pressure without plastic deformation in the whole working process. The pressure resistance of bellows actually belongs to the strength category of bellows.
  计算的关键是应力分析,也就是分析波纹管管壁上的应力只要波纹管管壁上大应力点的应力不超过材料的屈服强度,波纹管所受的压力就不会达到其耐压力。同一波纹管在其它工作条件相同时,受外压比受内压时的稳定性要好,所以,受外压作用时的大耐压力比受
  The key of calculation is stress analysis, that is to say, the stress on the wall of bellows will not reach its pressure resistance as long as the maximum stress point on the wall of bellows does not exceed the yield strength of materials. When the same bellows work under the same conditions, the stability under external pressure is better than that under internal pressure, so the maximum pressure endurance ratio under external pressure is better than that under internal pressure.
双扣聚氯乙烯增强管
  内压时高。当波纹管两端固定,如果在其内腔通入足够大的压力时,波纹管波峰处有可能爆破损坏。波纹管开始出现爆破时波纹管内部的压力值称为爆破压力。爆破压力是表征波纹管大耐压强度的参数。波纹管在整个工作过程中,其工作压力远小于爆破压力,否则波
  High internal pressure. When both ends of the bellows are fixed, if enough pressure is put into the inner chamber, the bellows may be damaged by blasting. When the bellows begin to burst, the pressure inside the bellows is called the burst pressure. Blasting pressure is a parameter to characterize the maximum compressive strength of bellows. In the whole working process of bellows, the working pressure is far less than the blasting pressure, otherwise the wave
  纹管将破裂损坏。当波纹长度小于或等于外径时,其计算结果和实际爆破压力很接近;对细长型波纹管其实际爆破压力要低很多。爆破压力大约为允许工作压力的3~10倍。
  The bellows will be broken and damaged. When the ripple length is less than or equal to the outer diameter, the calculated results are very close to the actual blasting pressure; for slender bellows, the actual blasting pressure is much lower. The blasting pressure is about 3 to 10 times of the allowable working pressure.

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