| 摘要 |
FIELD: power engineering.SUBSTANCE: gas burner ignition system comprises a power supply circuit, an igniter, an electromagnet valve, a delay circuit, a circuit of electromagnet valve reference voltage, a circuit of igniter switching control, connected between the power supply circuit and the igniter, a circuit of electromagnet valve switching control connected between the power supply circuit and the electromagnet valve. At the same time the circuit of electromagnet valve switching control and the circuit of igniter switching control are made as capable of control with the help of the delay circuit. The delay circuit comprises the first reservoir and the second resistance, connected in parallel between the power supply circuit and earth, at the same time the ignition system also comprises the first comparator with the first inlet contact connected to the delay circuit, and the second inlet contact of the first comparator is connected to the circuit of electromagnet valve reference voltage. Besides, the circuit of electromagnet valve opening delay, which comprises the specified first comparator, the delay circuit and the circuit of electromagnet valve reference voltage, is made as capable of control by means of the outlet of the first comparator, which controls the valve. Also the second version is described for the gas burner ignition system.EFFECT: invention provides for improved ignition of a gas burner, reduced time of ignition, reduced power consumption.11 cl, 5 dwg |
