JPS63179436U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram showing a combustion device which is an embodiment of this invention, Fig. 2 is a configuration diagram showing a combustion device which is another embodiment of this invention, and Fig. 3 is a configuration diagram showing a conventional combustion device. It is a diagram. In the figure, 1: gas combustor, 2: burner,
4: Flow rate control valve, 5: Combustion blower, 6: Room temperature detection element, 9: Combustion air amount detector, 10: Combustion control circuit, 12: Temperature comparison control circuit, 13: Air control circuit, 14: Pressure detection Tube, 15: Pressure detection tube,
16: Differential pressure detector. In addition, in the figures, the same reference numerals and symbols indicate the same or equivalent parts.

Amendment January 13, 1983 The scope of claims for utility model registration is amended as follows.

[Scope of Claim for Utility Model Registration] (1) A closed gas combustor that includes a burner for gas combustion and a combustion blower that supplies combustion air, and the amount of combustion air supplied in the gas combustor. combustion air amount detection means for detecting the amount of combustion air; a temperature comparison control circuit that compares the room temperature detected by the room temperature detection element with a set temperature to set the amount of combustion air to be supplied necessary for combustion; Compare the set supply amount of combustion air with the supply amount of combustion air by the combustion air amount detection means, and adjust the rotation speed of the combustion blower so that the air flow rate of the combustion blower becomes the set supply amount. The air control circuit controls the flow rate of fuel gas in accordance with the change in the amount of combustion air supplied by the combustion air amount detection means, and the amount of combustion air supplied by the combustion air amount detection means is controlled. A combustion apparatus comprising: a combustion control circuit that cuts off the supply flow of fuel gas to the burner when the flow rate is below a predetermined limit value. (2) The combustion air amount detection means for detecting the supply amount of combustion air in the gas combustor is a combustion air amount detector installed at the combustion air intake port of the gas combustor. A combustion device according to claim 1 of the utility model registration claim characterized by: (3) The combustion air amount detection means for detecting the supply amount of combustion air in the gas combustor includes a pressure detection tube for detecting the combustion air pressure between the burner and the combustion blower in the gas combustor. , a pressure detection tube that detects the exhaust gas pressure at the exhaust port of the gas combustor, and a differential pressure detector that detects a pressure difference using signals from both the pressure detection tube and the pressure detection tube and sends a signal to the combustion control circuit. A combustion apparatus according to claim 1, characterized in that the combustion apparatus comprises:

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A closed gas combustor that includes a burner for gas combustion and a combustion blower that supplies combustion air, and the amount of combustion air supplied in the gas combustor. combustion air amount detection means for detecting the amount of combustion air; a temperature comparison control circuit that compares the room temperature detected by the room temperature detection element with a set temperature to set the amount of combustion air to be supplied necessary for combustion; Compare the set supply amount of combustion air with the supply amount of combustion air by the combustion air amount detection means, and set the rotation speed of the combustion blower so that the air flow rate of the combustion blower becomes equal to or greater than the set supply amount. an air control circuit that controls the flow rate of fuel gas according to a change in the amount of combustion air supplied by the combustion air amount detection means, and an air control circuit that controls the amount of combustion air supplied by the combustion air amount detection means; a combustion control circuit that cuts off the supply flow rate of fuel gas to the burner when the fuel gas is below a predetermined limit value. (2) The combustion air amount detection means for detecting the supply amount of combustion air in the gas combustor is a combustion air amount detector installed at the combustion air intake port of the gas combustor. A combustion device according to claim 1 of the utility model registration claim characterized by: (3) The combustion air amount detection means for detecting the supply amount of combustion air in the gas combustor includes a pressure detection tube for detecting the combustion air pressure between the burner and the combustion blower in the gas combustor. , a pressure detection tube that detects the exhaust gas pressure at the exhaust port of the gas combustor, and a differential pressure detector that detects a pressure difference using signals from both the pressure detection tube and the pressure detection tube and sends a signal to the combustion control circuit. A combustion apparatus according to claim 1, characterized in that the combustion apparatus comprises: