动态平衡电动调节阀是区别于传统的电动阀的新一代产品,是动态平衡与电动调节一体化的产品。 如右图所示,在系统负荷波动较大的流量系统中,当系统压力变化时,动态平衡电动阀二端的压差(P1-P3)也随之变化; (1)当进口压力P1升高时,(P1-P2)增大,这时电动阀阀芯向上运去,使P1、P2间开度减少,阀芯压力P2降低;当进口压力P1降低时,(P1-P2)间开度增大,阀芯压力P2升高。因此,无论系统的压力怎样变化,通过电动阀的抗干扰能力强、具有动态平衡的功能; (2)当电动执行器接受控制信号使阀轴延R向旋转时,P2、P3间的开度也随之变化。由于不管系统压力差(P1-P3)如何变化,P2、P3间的压表(P2-P3)始终不变,因此对应于任一开度位置,其输送的水流量者是一定的,并且电动调节阀实际的流量特性曲线与其不早不晚的流量特性曲线是一致的,没有偏离,因此这种电动调节阀比传统的电动调节阀具有更好的调节特性。www.baiyunpv.com 021-62775279
Dynamic is different from traditional electric control valve is the valve of a new generation of electrical products is a dynamic and electric products regulation. Load fluctuations in the flow system, when the system pressure, the pressure dynamic electric valve terminal 2 (P1-P3) also change; When imports increased pressure at P1 (P2) increases, then transported to electric valve spool, P1, P2 opening between reduced pressure spool P2 lower; When reduced imports pressure P1 (P2) opening between increased pressure spool P2 increase. Therefore, no matter what changes the pressure through strong electric valve interference with the functions of dynamic equilibrium; When the control signal so that electric valve actuator to accept R-rotating shaft extension, P2, P3, the opening also change. Because regardless of the pressure difference (P1-P3) change, P2, P3, the pressure (P2-P3) remains unchanged, it corresponds to any opening position, delivered water flow is certain, and electric control valve actual flow characteristic curve instead of late is not too late to the flow curve is the same, no deviation, the electric control valve than conventional electric control valve is better regulation characteristics.
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