Flame stabilizer based on plane jet flow and flame stabilizing method

The invention relates to a flame stabilizer based on plane jet flow and a flame stabilizing method.The flame stabilizer comprises a jet flow jetting device, jet flow nozzles are arranged on the jet flow jetting device and comprise the first jet flow nozzle and the second jet flow nozzle, and the jet flow nozzles are arranged in the spanwise direction of the jet flow jetting device; the jet injection device conveys air and/or fuel to the first jet nozzle and the second jet nozzle; the first jet flow nozzle sprays out air and/or fuel conveyed by the jet flow spraying device in the first direction so as to form first plane jet flow; the second jet flow nozzle sprays out air and/or fuel conveyed by the jet flow spraying device in the second direction so as to form second plane jet flow; the second direction and the first direction are symmetrical relative to the jet jetting device; wherein the first plane jet flow and the second plane jet flow are used for forming a pneumatic barrier and forming a backflow area b