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发明公开
CN103234690A 利用差压变送器测量凝汽器压力的方法 无效 - 撤回

利用差压变送器测量凝汽器压力的方法
摘要：
本发明公开了一种利用差压变送器测量凝汽器压力的方法，它可以保证测量出来的凝汽器压力值准确、可靠、稳定。它的测量过程为：采用差压变送器测量凝汽器真空，用差压变送器负压侧接凝汽器真空测点，正压侧与大气相连，测得大气压力与凝汽器压力的差压值；然后再用测得的大气压力值减去该差压值得到凝汽器压力：设凝汽器压力：PK=Pb-PK＇式中：Pb——大气压力，kPa；PK＇——差压变送器测得的差压值即凝汽器真空值，kPa。
摘要（英）：

The invention discloses a method for measuring condenser pressure by using a differential pressure transmitter. The method can guarantee that the measured condenser pressure value is accurate, reliable and stable. The measurement process of the method comprises the following steps: measuring the condenser vacuum by using the differential pressure transmitter; connecting the negative pressure side of the differential pressure transmitter with a condenser vacuum measuring point and connecting the positive pressure side of the differential pressure transmitter with atmosphere; measuring the differential pressure value of atmospheric pressure and condenser pressure; then subtracting the differential pressure value from the measured atmospheric pressure value to obtain the condenser pressure; and setting the condenser pressure PK=Pb-PK', wherein Pb is the atmospheric pressure, kPa; and PK' is the differential pressure value measured by the differential pressure transmitter, i.e., the condenser vacuum value, kPa.

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