The present application relates to the technical field of
dissolved hydrogen and
oxygen measurement, and particularly relates to a multifunctional
flow cell device suitable for a
hydrogen and
oxygen sensor and a use method, comprising: a
flow cell, comprising a
cell body, the
cell body is further provided with a water inlet and a water outlet; a three-way valve, comprising a near-water part, a far-water part and a side connection part, the near-water part is connected with the water inlet, the far-water part is arranged between the near-water part and the side connection part, and the far-water part is used for connecting a sampling pipeline or a drainage pipeline; a
cleaning agent pool, provided with a medicament
pool and a waste liquid
pool, the medicament pool is connected with the water outlet, and the waste liquid pool is connected with the water inlet; a variable-
diameter quick connector; and a bidirectional water pump. The variable-
diameter quick connector is arranged at the water inlet and the water outlet, the specification can be quickly replaced according to the site, the size mismatching problem of the pipeline of the traditional
flow cell is solved, a
backwashing flow path is constructed, the sensor membrane
contamination and
aging problems are effectively relieved, the service life of the sensor
electrode is prolonged, the personnel
exposure risk is reduced, and the equipment
downtime is reduced.