黑水调节阀的设计

Design of black water regulating valve

随着煤化工行业的飞速发展,工艺水平的不断提高,对其阀门的使用寿命和调节精度要求越来越高。黑水调节阀是煤化工航天炉装置必不可少的重要设备之一,长期在进出口压差很大的气、液、固三相流介质中使用,现场工况较为恶劣。阀门要求具有耐腐蚀、抗冲刷、安全可靠等结构特点。黑水阀阀芯采用上导向结构,阀体流道呈带斜面的球形空腔结构,吹扫结构设计,阀座设计遵循文丘里加速原理,阀芯和阀座采用喷焊或整体烧结硬质合金,达到防冲刷、耐磨损的作用,该产品具有防堆堵,抗冲蚀,大流通能力,可调范围广等特点,主要适用于控制含有硬质颗粒的多相流体如煤浆水等。

With the rapid development of coal chemical industry and the continuous improvement of process level,the re-quirements for the service life and adjustment accuracy of its valves are higher and higher.Black water regulating valve is one of the essential equipment of coal chemical Aerospace furnace.It has been used in gas,liquid and solid three-phase flow me-dium with large inlet and outlet pressure difference for a long time,and the on-site working conditions are relatively bad.The valve shall have the structural characteristics of corrosion resistance,erosion resistance,safety and reliability.Black water valve has a top-guided valve plug and a flow passage with the beveled global cavity structure,.The design of Purging struc-ture,The design of valve seat follows Venturi Acceleration Principle.The plug and seat are spray welded or integral sintered carbides to prevent erosion and wearing.This product represent blocking prohibition,anti-erosion and features with large flow capacity and wide rangeability.It is applicable to control multiphase fluid containing hard particles,such as coal slurry.etc.