CN2456039Y

CN2456039Y - Ignitor

Info

Publication number: CN2456039Y
Application number: CN 00259854
Authority: CN
Inventors: 耿尚彝
Original assignee: Individual
Current assignee: Dong Fumin
Priority date: 2000-12-16
Filing date: 2000-12-16
Publication date: 2001-10-24
Anticipated expiration: 2010-12-16

Abstract

The utility model relates to an ignitor, which belongs to an ignitor on a plasma furnace for metallurgy and chemical engineering. On the basis of the traditional ignitor which is composed of a high-voltage transformer and an ignitor, the output end of the high-voltage transformer of the device is connected in parallel with the input end of a high-frequency inductor and both ends of a discharger, and simultaneously the high-voltage transformer is connected in series with a capacitor. The output end of the high-frequency inductor is connected in series with a loop capacitor and an ignitor. The utility model can not easily generate short circuit and burning, and can be suitable for the large-scale production of plasma furnaces, with the advantages of simple structure, larger ignition distance, and the assurance of safety production.

Description

Igniter

Igniter on the plasma heating furnace of the utility model genus metallurgy, chemical industry.

Existing igniter generally is only applicable to the plasma heating furnace that small-scale production or laboratory are used, and its ignition distance is 10mm to the maximum.If will improve the production capacity of stove, will increase the distance of igniter electrode, the result just can not light a fire; If only use more high-tension transformer, be easy to again be short-circuited and burn, the security of production is reduced.

The purpose of this utility model provides a kind of igniter of plasma heating furnace, and it is reasonable in design, and ignition distance is big, is suitable for Large Furnace, is difficult for the phenomenon that is short-circuited,

Implementation of the present utility model is: on the basis of traditional igniter, the input and the discharger two ends of high-frequency inductor in the output parallel connection of high-tension transformer, and being in series with capacitor simultaneously, the output of high-frequency inductor is in series with tank capacitance device and igniter.Civil power is behind high-tension transformer, and exportable high-tension electricity behind discharger and capacitor, just can produce the voltage of higher frequency, passes through high-frequency inductor and tank capacitance again, and voltage further promotes, and igniter can be struck sparks in the interior discharge of big distance.

Below, the specific embodiment of the present utility model according to Figure of description provides is further described its structure.

Fig. 1 is an electrical block diagram of the present utility model.

Referring to Fig. 1, the high-tension transformer 1 of this device adopts 50 hertz, 320,000 volts transformer, its output in parallel simultaneously the input of a high-frequency inductor 3 and the two ends of a discharger 2, between high-frequency inductor 3 and discharger 2, be in series with the capacitor 4 of 0.01～0.08 microfarad, after civil power changes through this one-level, can be transformed into 0.5～6 megahertz, 320000 volts high-frequency high-voltage.The frequency of high-frequency inductor 3 is that the secondary and primary turns ratio of 0.5～6 megahertz, coil is 1: 5, and its output is in series with the tank capacitance device 5 and the igniter 6 of 0.01～0.09 microfarad, and high-frequency high-voltage can easily be struck sparks in the continuous discharge of igniter 6 places.In order to improve the service life of this device, discharger 2 used electrodes adopt fusing point to be higher than 2500 ℃ metal electrode.In order to make igniting easily, the insulation that does not produce high-tension transformer 1 again is breakdown, and its class of insulation should reach, and puts into transformer oil, and the insulation distance between the coil layer is 150～180 millimeters.

From technique scheme of the present utility model, this ignition device structure is simple, and is reasonable in design, and ignition distance is strengthened, and plasma heating furnace is applicable to large-scale industrial production, and can guarantees not to be short-circuited simultaneously.

Claims

1. An ignition device consisting of a high-voltage transformer and an igniter, characterized in that the output end of the high-voltage transformer is connected in parallel with the input end of the high-frequency inductor and the two ends of the discharger, and a capacitor is connected in series at the same time, and the output of the high-frequency inductor A loop capacitor and an igniter are connected in series.

2. The ignition device according to claim 1, characterized in that the high-voltage transformer adopts a transformer of 50 Hz and 320,000 volts, the frequency of the high-frequency inductor is 0.5-6 MHz, and the ratio of secondary to primary turns of the coil is 1. : 5, capacitors and loop capacitors are 0.01-0.08 microfarads and 0.01-0.09 microfarads respectively.

3. The ignition device according to claim 2, characterized in that the electrodes of the arrester are metal electrodes with a melting point higher than 2500°C.

4. The ignition device according to claim 2, characterized in that the insulation distance between the coil layers of the high-voltage transformer is 150-180 mm.