SU385211A1 - DEVICE TO DETERMINE THE HAZARDS OF IGNITION OF COMBUSTIBLE MEDIA - Google Patents

Description

I

The invention relates to devices for assessing the flammable ability of electrical discharges in technological processes of chemical, petrochemical and adjacent to the industrial components of the ILI.

The known devices for determining the danger of ignition of combustible media, consisting of a spherical gap and means for supplying a combustible medium to the discharge region, do not exclude the possibility of ignition of a combustible medium and do not provide long-term monitoring under production conditions.

In the proposed device, these disadvantages are eliminated due to the fact that the device is made in the form of a sealed grounded chamber, equipped with a means for filling it with a combustible mixture with specified properties and an indicator of explosion of the combustible mixture. Inside the chamber there is an electrode insulated from its housing.

The drawing shows the proposed device for determining the danger of ignition of 1 and combustible media.

The device includes the first external electrode (for example, spherical shape) 1, a rod 2, ending with a needle electrode and fixed in insulator 3, for which, one side of the body is sealed to the metal body 4 by means of gaskets 5 and saddle 6. 4. Between the seat 6 and the body 4 there is fastened a metal liner 7 and a ring 8. The gap between the liner 7 and the needle of the rod 2 is spaced. The other side of the carpus is sealed with a piston 9 with gaskets 5 and a rod 10 with a plug P. The stroke of the piston is limited by the stop ring 12.

The electrode 1 is unscrewed, and the rod

put in a polission, in which a gap is formed between its walls and the saddle 6. The plug 11 is unscrewed. The VL rod 10 is set to a position at which a gap is formed between its walls and the channel steaks.

in the piston. A rubber tube is put on the rod 10. Through this Tipiy6wy, pot in stem 10, gaps, chamber volume and channel in stem 2, the combustible mixture is blown through the chamber. After no less than three times the exchange of combustible

the mixture in the chamber volume the rod 2 is screwed. The gap between its walls and the saddle 6 overlaps. Screw the electrode. The piston 9 is pushed all the way into the housing 4. The gas supply tube is removed, and the plug 10 is screwed on the piston rod 10. The device is ready for operation.

The electrode / moves closer to the charged surface before the occurrence of a discharge. During discharge a discharge breakdown occurs.

the gap formed by the rod 2 and the liner 7. If the ignition capacity of the discharge is large enough, the mixture in the housing 4 is ignited. The movement of Porsche 9 is used to indicate the operation of the device.

Subject invention

A device for determining the risk of ignition of combustible media consisting of a spherical discharge, characterized in that.

in order to eliminate the possibility of ignition of the combustible mixture and to ensure long-term monitoring under production conditions beyond the level of ignition capacity of pulsed electrical discharges, the device is designed as a sealed grounded chamber equipped with a means for filling it with a combustible mixture with desired properties, insulated from the case inside it and connected to the spherical discharge, and an indicator of the explosion of a combustible mixture.

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