Sustained arc high energy electrostatic igniter and control method thereof

Abstract

The invention discloses a sustained arc high energy electrostatic igniter and a control method thereof, belonging to the technical field of electronic igniters. The electrostatic igniter comprises a charging circuit, an ignition circuit, a sustained arc circuit and a leakage circuit. The charging circuit comprises a first power supply and a second power supply; the ignition circuit comprises a high-voltage capacitor C1, a starting switch S1 and an electrode; the sustained arc circuit comprises a low-voltage capacitor C2, a sustained arc inductor L and an electrode; and the leakage circuit comprises a leakage resistor R and a leakage switch S4. High-voltage capacitor is adopted to replace an igniter of a traditional circuit, and the high-voltage capacitor C1 is adopted to discharge so as topuncture air between electrodes, therefore, the energy released by generated electric spark can be up to more than 8000J currently, and the ignition energy of traditional electric igniter is improved; the diode in a traditional sustained arc circuit is removed, an inductance component L is placed in the sustained arc circuit, thereby preventing high-voltage pulse generated by the ignition circuitfrom being connected in the sustained circuit in series, so that the air between the electrodes can not be punctured. Compared with the traditional way, the invention is safer, more convenient and more reliable.

Description

technical field [0001] The invention belongs to the technical field of electronic igniters, and in particular relates to an arc-continuing high-energy electrostatic igniter and a control method thereof, which are applied in the fields of ignition of flammable gas, flammable mist liquid, and flammable dust clouds. Background technique [0002] There are generally two types of ignition sources used in dust explosion characteristic parameter testing, namely: electrostatic ignition source and chemical ignition source (also known as chemical ignition head). The energy produced by the electrostatic ignition source commonly used at present is generally small, about 0.1mJ ~ 10J, while the energy of the chemical ignition head is relatively large, generally in the level of 2KJ ~ 100KJ. [0003] Common electrostatic ignition systems are mainly divided into two situations: one is to use a capacitor-inductor discharge circuit; the other is to use a capacitor-resistor discharge circuit. ...

AI Technical Summary

Problems solved by technology

Because this ignition method uses detonators and explosives, it is very unsafe in terms of use and transportation; in addition, it controls the ignition energy by changing the amount of explosives, which makes this ignition method a great safety hazard; After the ignition task is completed, the ignition head must be replaced to carry out the next ignition task, and the cost consumption is relatively high

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