The utility model discloses a
reversing valve leak protection fixed
bolster of
chromatographic column box positive and negative flushing
system, including support main part,
reversing valve positioning mechanism, leak protection monitoring unit, linkage adjusting unit and integrated
control circuit. The support main part is installed in the
chromatographic column box through the sliding guide rail, and the top is equipped with the embedded groove and the high temperature resistant sealing
rubber ring, the positioning mechanism contains adjustable clamping arm and three layer compound arc
gasket, leak protection monitoring unit integrates multiple sensors and multiple way
signal switching circuit, linkage adjusting unit contains
servo push rod and PID adjusting
algorithm, and integrated
control circuit communicates with the column box
temperature control host computer through
CAN bus, still is equipped with alarm circuit. Its solution existing support
adaptation difference, leakage monitoring
lag, linkage poor etc. problem, realize multidimensional leak protection monitoring, clamping force self -
adaptation adjustment and with column box collaborative control, promote the fixed sealing property and stability of
reversing valve, guarantee
chromatographic column positive and negative flushing function reliable implementation.