Patent · US Active

Method and industrial furnace for using a residual protective gas as a heating gas

US9188392B2 · kind B2 · utility

2Cited by

6References

3Claims

0Family size

Assignee

Ipsen, Inc. · US

Inventors

Rolf Sarres · Oberhausen, DE
Wilhelm van de Kamp · Kleve, DE

Key dates

Filing date	Apr 2, 2012
Grant date	Nov 17, 2015
Priority date	—
Expiry date	Jan 20, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF27D7/00
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

In order to increase energy efficiency in an industrial furnace (1) operated by heating gas and protective gas for thermally treating materials, a first burner (3.1) is actuated for heating with priority over a second burner (3.2), the second burner (3.2) is engaged additionally and operated when the output from the first burner (3.1) falls below the level necessary to heat the industrial furnace (1) up to a temperature setpoint, and the second burner (3.2) is switched off when the temperature setpoint has been reached.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.