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[". Hilfe! �eam Druck 0.8 降至 at.1-0.15-MP.1-MPa 的方法,非常感谢

2020-11-12View Original

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Medium;蒸汽 DN2.5 。想要稳定在
Reply #22020-11-12
考虑用量,是否可以缩小管径阀门,然后再配置一个缓冲罐,精密减压阀。 对于要求精密的,最好咨询精密减压阀门厂家,一定要考虑流量,及用气状况。供参考。
Reply #32020-11-12
谢谢回答 带有缓冲罐了 管径DN15了 蒸汽含水量有点大。现有调节阀调到0.3后,靠阀门控制到0.08,一旦用量增大 就全靠阀门调节 不问题
Reply #42020-11-12
1.0MPa 降低到0.07MPa?压差这么大,一个减压阀完不成任务。最好用减温减压器。
Reply #52020-11-12
压力降的比例有点大,建议加限流孔板,在限流孔板后面再加减压阀。如同时需要减温,将减压阀换成减温减压器。https://bbs.hcbbs.com/forum-304-1.html
Reply #62020-11-13
最好上一个减温减压装置。安全有效
Reply #72020-11-13
先说个实际经历,供参考。工况:入口0.8MPa, 降低到0.1MPa; 实施过程:首先用自立式减压阀减压至0.3MPa,再用自动调节阀调压,调节前设疏水器;效果:当入口蒸汽压力波动不大时,通过手阀+自动调节阀基本可以满足要求,但开停车时调节比较麻烦,尤其当入口蒸汽压力波动大时,压力很难稳定在0.1MPa,安全阀起跳频繁。按楼主的工况,从1.0MPA减至0.07MPA,压差大,个人认为通过减压阀的方式难以达到满意效果。
Reply #82020-11-13
没有经验凭感觉说啊,先用自力式调节阀减压到一个中间压力(比如0.3),后面紧跟一缓冲罐,对于带液相当于闪蒸罐做到100%干度,出口管接调节阀,后接另一个罐子,调节第二个罐子压力为目标压力。。

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