A full-closed cooking system, comprising a closed cooking cavity, a wok device arranged in the interior of the cooking cavity and a cooking fume treatment device arranged at the exterior of the cooking cavity, the cooking cavity is formed by means of a shell in a sealed manner, a side wall of the shell is provided with a first exhaust port for connecting the cooking fume treatment device;
- the cooking fume treatment device is provided with a cooking fume inlet and a cooking fume outlet;
- the wok device comprises a wok and a wok lid for closing or opening the wok;
- the wok lid is provided with a smoke outlet corresponding to the first exhaust port;
- the smoke outlet is communicated with the cooking fume inlet via a cooking fume pipeline;
- the cooking fume generated in the cooking process with the wok being closed is discharged to the cooking fume treatment device from the smoke outlet to be treated;
- the cooking fume escaping into the cooking cavity is exhausted to the cooking fume treatment device from the smoke outlet to be treated when the wok is opened;
- a side wall or bottom wall of the shell is provided with an exhaust gas return port communicated with the cooking fume outlet, and the cooking fume exhausted after being treated by the cooking fume treatment device enters the cooking cavity from the exhaust gas return port to be subjected to circulating cooking fume treatment so as to achieve zero emission of the cooking fume;
- the cooking fume treatment device comprises:
- a box body provided with a cooking fume channel formed therein, and an inlet and an outlet of the cooking fume channel are communicated with the cooking fume inlet and the cooking fume outlet respectively;
- a fan adapted for sucking cooking fume into the box body from the inlet of the cooking fume channel and exhausting the cooking fume out from the outlet of the cooking fume channel;
- and
- a cooking fume filtering assembly arranged in the cooking fume channel, and the cooking fume filtering assembly comprises a plurality of filtering layers disposed within the cooking fume channel;
- a water circulation pipeline provided with at least one first water outlet which is formed in a top portion of the box body and located above the cooking fume channel and at least one first water inlet which is formed in a lower portion of the box body;
- a water pump arranged in the water circulation pipeline;
- and
- a spraying plate provided with a plurality of spraying holes, the spraying plate is arranged between and separate the cooking fume channel and the top portion of the box body, and the at least one first water outlet is located above the spraying plate;
- water sprayed from each first water outlet falls onto the spraying plate and then passes through the plurality of spraying holes of the spraying plate to spray the cooking fume channel.