The invention discloses a resin trapper for a
nuclear power plant. The resin trapper comprises a bottom plate, a cylinder arranged on the bottom plate, a manhole cover plate assembled on the cylinder, a
filter element mounting porous plate arranged in the cylinder, a
filter element positioned in the cylinder by virtue of the
filter element mounting porous plate, and a water inlet and a water outlet which are formed in the side wall of the cylinder, wherein the bottom plate, the cylinder, the manhole cover plate, the water inlet and the water outlet are manufactured by bimetallic composite
steel plates; the inner layer refers to stainless
steel plates; the outer layer refers to vessel
steel plates; and the filter element mounting porous plate and the filter element are made of all stainless steel. According to the resin trapper for the
nuclear power plant disclosed by the invention, the bimetallic composite steel plates are adopted, a layer of thin stainless steel plates is compounded on the inner side of an equipment container, the original rubber lined layer is replaced, and the defect that the rubber lined layer is short in service life is overcome. Compared with an all
stainless steel material, the material in the invention has the advantages that the construction cost is greatly reduced, and the anticorrosion requirement is met. In the
nuclear power plant operating process, the resin trapper for the
nuclear power plant disclosed by the invention does not need to be maintained and replaced in the unit lifecycle under the normal use condition.