SU1455154A1 - Device for checking combustion in ignition torch - Google Patents

Abstract

The invention makes it possible to increase the accuracy of control by determining the presence of a fire cord within the igniter. A mixture of firing gas and air is fed into the mixing chamber 2 through the pipe 4. Under the action of a centrifugal force, the TOROSHI-AIR jet twists in chamber 2 and spreads along the platen of the transfer tube 5 as a swirling stream. Then this stream enters the combustion device to ignite the main mixture. In the length and height of the igniter, the temperature of the burning tow is not the same. In the zone limited by the ratios 1 / D 1.0-6.0 and H / D-0.4-0.6, the temperature is 600 - and is optimal for providing control. The combustion control sensor 1 registers the temperature of 600-900 ° C and gives the command to feed the main fuel into the combustion space. 1 il. (L ate} listened

Description

The invention relates to the field of power engineering. .

The aim of the invention is to improve the accuracy of control by determining the presence of a flame of fire.

The drawing shows a longitudinal section of a flare pilot ignition control device.

The combustion control device contains a sensor 1 control installed in the mixing chamber 2 having a spark plug 3, and the distances H and 1, respectively, from the inner wall of chamber 2 to the cut-off of the control sensor 1 and from the last to the spark plug 3 are respectively (0.4- 0.6) D and (1.0-6.0) D, where D is the internal diameter of the mixing chamber.

To supply the burning mixture to the mixing chambers 2, it is equipped with a tangential nozzle 4, and to transfer the flame to the combustion space (not shown), a pipe 5.

When the flare igniter is operating, the mixture chamber 2 is fed through the nozzle 4 with a mixture of firing gas and air. Under the action of centrifugal force, the air-fuel jet spins in the mixing chamber 2 and spreads along the flames of the transfer tube 5 as a swirling flow. Then this flow enters the combustion chamber to ignite the main mixture.

After supplying the voltage to the candle 3, the air / fuel mixture ignites from the spark. Thus, inside the igniter there is a so-called fire cord that goes beyond the limits of the flame of the transmission tube 5

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five

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into the combustion space. The length and height of the igniter, as established by experiments, the temperature of the burning tow is not the same. In the zone limited by the ratios 1 / D 1.0-6.0 and H / D 0.4-0.6, the temperature is 600 ° C and is optimal for providing control.

The sensor 1 for the presence of the combustion control installed in the mixing chamber 2 in the specified zone, when there is a main fuel burning, registers the temperature of the OSB and instructs to supply the main fuel to the combustion space.

In the event of a pilot ignition in operation (no ignition of burning gas) due to a malfunction, for example, a candle 3, sensor 1 will not register a temperature of 600-900 0 and will not issue a command to supply the main fuel to the combustion device. The start will be terminated to determine the cause of the failure and eliminate it.

Claims (1)

Invention Formula A flare pilot ignition control device with a spark plug and a mixing chamber containing a monitoring sensor, characterized in that, in order to increase the monitoring accuracy by determining the presence of a fire cord, the sensor is installed in the mixing chamber at a distance from the inner wall of the sensor to ( 0.4-0.6) D and, from the last to the spark plug (t, 0-6.0) D, where D is the internal diameter of the mixing chamber.