Equipment for detecting mercury form in gas field sludge

The invention belongs to the technical field of laboratory detection, and discloses equipment for detecting mercury form in gas field sludge, which comprises a gas supply unit, a pyrolysis unit, a reduction unit, an impurity absorption unit and a detection unit. The gas supply unit is configured to purge mercury gas in the pipeline; the pyrolysis unit is connected to the gas supply unit and comprises a pit furnace and a U-shaped pipe, the U-shaped pipe is inserted into the pit furnace and used for containing a sample, and the pit furnace is used for heating the U-shaped pipe and pyrolyzing elemental mercury and mercury compounds in the sample; the reduction unit is arranged at the downstream of the U-shaped pipe and is configured to convert the mercury compound into elemental mercury; the impurity absorption unit is used for removing interferents influencing the detection result in the airflow; the detection unit is disposed downstream of the reduction unit and is configured to detect elemental mercury. The e