公开(公告)号：US20240003627A1

公开(公告)日：2024-01-04

申请号：US18331256

申请日：2023-06-08

Applicant: NGK INSULATORS, LTD.

Inventor： Daniel Yukichi KITAGUCHI ,  Tatsuya KINOSHITA ,  Masami SATO

IPC: F27B9/12 ,  F27D9/00 ,  F28C3/00

CPC classification number: F27B9/12 ,  F27D9/00 ,  F28C3/005 ,  F27B2009/126 ,  F27D2009/0075

Abstract: A heating furnace includes a plurality of heat storage coolers capable of introducing a cooling gas into an inside of the furnace and sucking an in-furnace gas; wherein each of the plurality of heat storage coolers includes a gas nozzle in communication with the inside of the furnace; a gas port in communication with an outside of the furnace and connected to a gas piping system that is capable of switching between supplying gas to the heat storage cooler and exhausting gas from the heat storage cooler; a gas passage communicating the gas nozzle with the gas port and having a space for filling a heat storage element; and a heat storage element filled in the space for filling the heat storage element.