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    排烟防火阀在运用的振动的现象
    来源: 2017-06-22 17:40:12
    排烟防火阀是消防的一个首要运用部件,通常在机械排烟系统的管道上都能见到排烟防火阀的身影,它往常呈翻开状况,火灾时当排烟管道内烟气温度抵达280度时封闭,并在必定时间内满足耐火完整性和漏烟量恳求,起隔极好的烟阻火效果。那么排烟防火阀在运用过程中为何会出现振动表象呢,我们来了解下其间的原因:
    Smoke damper is an important component of the use of fire, can see the smoke damper figure in the pipeline mechanical exhaust system usually, it is always open, fire when the exhaust pipe, the flue gas temperature at 280 degrees and arrived at the closed, meet the fire integrity and smoke leakage for certain time period. From the smoke separating effect is excellent. Then smoke smoke valve in the use of vibration in the course of why the appearance of it, we come to understand the reasons for the meantime:
    1.排烟防火阀刚开端作业时轴承部位的振动很小,但是跟着作业时间的加长,排烟防火阀内粉尘会不均匀的附着在叶轮上排烟防火阀,逐渐损坏排烟防火阀的动平衡,使轴承振动逐渐加大,所以就逐渐开端振动了;
    1. vibration smoke damper at the beginning of operation of the bearing parts is very small, but as time lengthened, smoke damper dust will be attached to the impeller on the smoke damper uneven, dynamic balance gradually damaged smoke damper, the bearing vibration increase gradually, so it gradually began to vibrate;
    2.在排烟防火阀振动靠近危险值时,有测振仪表的会报警 远控排烟防火阀,所以我们要及时查询调整;
    2. in smoke damper vibration near the dangerous value, it will alarm remote smoke fire damper vibration instrument, so we should timely adjust the query;
    3.一旦振动抵达排烟防火阀容许的最大值11mm/s时(气楼用振幅值标明的最大容许值如下),排烟防火阀有必要停机修补(根除粉尘堆积,重做动平衡)。因为这时已经很危险了,我们必定要连续运用,避免构成不必要的扔掉。
    3. when the vibration arrived in smoke fire valve to allow the maximum value of 11mm/s (gas marked maximum permissible value as amplitude), smoke damper is necessary to stop repair (eradication of dust accumulation, redo dynamic balance). Because this has been very dangerous, we must continue to use, to avoid unnecessary throwing away。
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