Title:
OPEN TYPE GAS COMBUSTOR
Document Type and Number:
Japanese Patent JP3871803
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To discriminate the cause of abnormal combustion by comparing a synthesized electromotive force with a preset decision level during a predetermined decision time immediately after ignition of a burner and then controlling the operating state of an apparatus based on the comparison results.
SOLUTION: When a first decision time T1 elapsed after a flame is detected immediately after ignition of a burner (S11), a decision is made whether a synthesized electromotive force V exceeds a decision level V0 or not. If V is lower than V0 (S12), a decision is made that a flame has lifted or went out due to deficiency of oxygen and holding current supply to a magnet solenoid valve is stopped to close the valve thus interrupting gas supply (S7). It V exceeds V0, a decision is made whether V is lower than V0 when a second decision time T2 is reached after flame detection (S13, S14). If V is lower than V0, the time t when V is lower than V0 is determined and interlock request is delivered (S15, S16) before the solenoid valve is closed (S7).
Inventors:
Hideo Inagaki
Shinya Nakajima
Shinya Nakajima
Application Number:
JP10986698A
Publication Date:
January 24, 2007
Filing Date:
April 20, 1998
Export Citation:
Assignee:
Paloma Industry Co., Ltd.
International Classes:
F23N5/10; F23N5/24; (IPC1-7): F23N5/10; F23N5/24
Domestic Patent References:
| JP8338628A |
Attorney, Agent or Firm:
Yoshiki Ishida
Previous Patent: RESIN MOLDING SUBSTRATE AND MANUFACTURE THEREOF
Next Patent: AUXILIARY BOILER EQUIPMENT FOR REACTOR POWER STATION
Next Patent: AUXILIARY BOILER EQUIPMENT FOR REACTOR POWER STATION