平板閥的流體曲線特性分析

帶導(dǎo)流孔的平板閘閥，其流量特性等同于同規(guī)格的管道，呈等百分比特性，不帶導(dǎo)流孔的平板閘閥，其中腔跨度較楔式閘閥小，且屬于規(guī)則的圓柱體，所以，其本上除壓力損失較帶導(dǎo)流孔的大外，其余特性基本接近。不帶導(dǎo)流孔調(diào)節(jié)型的平板閘閥其對(duì)流量的調(diào)節(jié)特性優(yōu)于普通不帶導(dǎo)流孔的平板閘閥。

閥門開度—Cv特性曲線表 Valve-opening —Cv characteristic graph

   

Flow charalteristic
    The flow characteristic of flat gate valves with a diversion hole is equal to that of pipelines of thesame specification.The characteristic is shown in per centum form.As for valves without a diversion hole,its cavity fly span is smaller than that of wedge gate vales and it is a regular cylindrical object,therefore,characteristics of the valves are similar except that they have a larger pressure loss.Besides,their flux adjustment behavior is better than that of the ones with a deversion hole.

關(guān)鍵詞：平板閘閥   ↑