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Show UTb "") o The Latest Gas Burner Control System Intelligent Burner System (IBS) Koj i Izumi Chugai Ro CO. , LTD. Takatoshi Saeki Osaka Gas CO. . LTD. Introduction High performance low NOx burner installed high turndown performance and high-speed jet flow have been developed for improving productivity and product qua I i ty. However there are many cases that combust i on equ i pment i n actua I runn i ng can not fuIly fulfi I I its specific performance due to difficulty in adjustment of burner combustion rate and marginal control accuracy. So Chugai Ro and Osaka Gas developed "Intel I igent Burner System" as high performance control ler, under the idea of "How such combustion equipment would be improved by combustion engineer who is the most fami I iar with burner?" and "we would I ike to offer high performance technologies covering even what are generally missed". The objectives of the development were (1) Consideration into the global environment, (2) Energy-saving measure, (3) Labor saving at field, (4) Improvement of treatment quality, and (5) Flexibility to diversified heating patterns. The developed system manages combustion conditions with high accuracy after presetting individual burner conditions by its interactive type keyboard operation. In addition, the system is provided with alarm message functions including self-diagnosis function, fail-safe and fail-proof functions. These functions are supported by original technology, which is a combination of composite throttle valve and sensor control of original design. 1. Outline of the System The opt imum operat ion of al I furnaces has recent ly been important in part icu Iar. So changing of furnace internal temperature and atmosphere setup has increased. To correspond to such frequent change of temperature and atmosphere setup, furnace control accuracy has been recently improved at a rapid pace. For example, it is common sense to adopt an automatic control system for control of combustion furnaces. |
