Nozzle of regenerative burner and regenerative burner

The nozzle of the heat accumulating type combustor is arranged on the outer side of a furnace body and comprises a heat accumulating chamber, the heat accumulating chamber is provided with a first end and a second end which are opposite to each other, the first end is provided with an opening, the second end is provided with a nozzle extending into the furnace body, and the nozzle is arranged on the outer side of the furnace body. The heat storage chamber is provided with a gas channel communicated with the nozzle, the gas channel extends from the first end to the second end, a heat storage layer is arranged in the gas channel and comprises a heat storage ball layer and two heat storage brick layers, and the two heat storage brick layers are arranged in the extending direction of the gas channel at intervals. The heat storage ball layer is located between the two heat storage brick layers. The heat storage performance is good, the reversing time is prolonged, and the heat exchange efficiency is improved. 本发明公