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高压不锈钢风机失速的现象有哪一些呢?

作者: 来源: 发布日期: 2024-06-25 浏览次数:
信息摘要:
高压不锈钢风机失速一般发生在两台风机运行时,由于风压太大或风量太小而引起动叶出口产生涡流而不打风,从而引起负荷偏差大,动叶自动。结果表明:不锈钢风机动叶扩张时,两个风机平行运行,并投入自动控制,当风机…

高压不锈钢风机失速一般发生在两台风机运行时,由于风压太大或风量太小而引起动叶出口产生涡流而不打风,从而引起负荷偏差大,动叶自动。结果表明:不锈钢风机动叶扩张时,两个风机平行运行,并投入自动控制,当风机风压降低时,其中一个风机电流下降,而另一个风机(失速)下降,风机轴承温度升高,振动增加。

高压不锈钢风机

不锈钢风机失速现象,在并联风机失速时,会产生下列现象:

(1)失速风机压头减小,流量增加,电流大幅度下降,出口风温增大;

(2)失速高压不锈钢风机噪声明显增加,严重时可引起外壳、风道、烟道振动

(3)失速不锈钢风机振动增大,DCS发出呼吸振动大警报;

(4)投入自动运转时,与失速耐腐蚀风机并联运转的风机的电流和容积比大幅增加

(5)在自动状态下,机翼在另一个风向的开度增大。与不锈钢风机的气喘不同,风机失速后风压和流量减少,不发生脉动。

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