Micro-electro-mechanical pre-concentration system

The utility model discloses a micro-electro-mechanical pre-concentration system which comprises a support frame and an evaporation unit, fixing plates are arranged at the lower ends of supporting legs of the supporting frame; the evaporation unit comprises an evaporation tank, partition plates, evaporation pipes and heating pipes, the evaporation tank is arranged at the right upper end of the supporting frame, the partition plates are arranged at the upper end and the lower end of the inner arc wall of the evaporation tank, the evaporation pipes are evenly distributed between the two partition plates, and the lower ends of the evaporation pipes communicate with the lower end in the evaporation tank; the upper ends of the evaporation pipes communicate with the upper end in the evaporation tank, heating pipes are arranged in mounting holes in the outer arc surface of the evaporation tank, and the heating ends of the heating pipes are located between the two partition plates; the micro-electro-mechanical pre-con