To provide a combustion device permitting an igniting motion by determining whether a state that ignition can be performed in safety without explosive ignition, exists or not according to a situation of releasing an unburned fuel gas.
A bath heater device 1 including a pilot burner 16 applying a gas as a fuel, a thermocouple 28 detecting flame of the pilot burner 16, and a controller 6 confirming the ignition to the pilot burner 16 and determining misfire, further includes a raw gas integration timer for integrating a releasing time of the unburned fuel gas. When the controller 6 receives the igniting operation, the igniting motion is not performed until a prescribed ignition prohibition time Tb has passed, when a measurement value of the raw gas integration timer is a prescribed time Ta or more, and occurrence of the explosive ignition is prevented while permitting a re-igniting operation after the determination of misfire by adding a time measurement value Tc not reaching the prescribed time Ta to the raw gas integration timer, when the misfire is determined in determining the misfire.
| JPH01306727 | HOT-AIR HEATER |
| JP2505285 | [Name of invention] Boiler combustion safety control device |
| WO/2018/010988 | GAS BURNER SYSTEM FOR A GAS COOKING HOB |
MORISHITA ATSUHIRO
OKADA HIDEYUKI
ADACHI HIDEJI
| JP2004163027A | 2004-06-10 | |||
| JP2004170018A | 2004-06-17 | |||
| JPH11148643A | 1999-06-02 | |||
| JPH02101319A | 1990-04-13 | |||
| JPH08226645A | 1996-09-03 | |||
| JPH07332667A | 1995-12-22 | |||
| JPH10132268A | 1998-05-22 | |||
| JP2005083595A | 2005-03-31 | |||
| JP2004163027A | 2004-06-10 | |||
| JP2004170018A | 2004-06-17 | |||
| JPH11148643A | 1999-06-02 | |||
| JPH02101319A | 1990-04-13 | |||
| JPH08226645A | 1996-09-03 | |||
| JPH07332667A | 1995-12-22 | |||
| JPH10132268A | 1998-05-22 |
Kiyoshi Samukawa