Water supply device matched with digestion of Kjeldahl apparatus

The utility model discloses a Kjeldahl apparatus digestion supporting water supply device, which relates to the technical field of agricultural product detection process equipment, and comprises a water injection disc and a cover plate covering and hermetically fixed on the upper part of the water injection disc, deionized water can be contained in the water injection disc, and a plurality of mounting holes are formed in the bottom of the water injection disc. A funnel is fixed in each mounting hole in a sealing manner, the funnel is communicated with the inside and the outside of the water injection disc, a neck opening of the funnel is positioned inside the water injection disc, an opening of an opening part of the funnel is positioned outside the water injection disc, and the opening part of the funnel can completely extend into a pipe orifice of the digestion pipe, so that deionized water in the water injection disc can enter the digestion pipe; a water injection opening is formed in the cover plate and c