SU389352A1 - - Google Patents

Description

DEVICE FOR MIXING TWO GASES

one

The invention relates to gas-burning devices for power plants and industrial furnaces, in particular, to devices for mixing the components of the gaseous fuel.

Devices are known for mixing gaseous components, for example, in gas burners, comprising a housing with gas supply channels, in one of which a movable nozzle and a fixed choke are mounted. The other channel is located coaxially with the first one at the exit from the rolling nozzle.

The proposed device differs from the known ones in that the second channel is from the first and is provided with a nozzle connected to the stir mechanism, and a throttle connected to the servo motor.

This embodiment allows maintaining a constant ratio of gaseous media at the outlet of the device when the parameters at the inlet change.

The drawing shows the proposed device, a longitudinal section.

In the device case 1, channels 2 to 3 with nozzles 4 and 5 are located, respectively. Nozzles with rods 6 are attached to a strap 7 connected to the mechanism for moving nozzles. The throttles 8 and 9 of the same length are installed along the nozzle axis, the throttle 5 being connected by a rod to the servo motor W, and the throttle 9 is rigidly connected to the body.

Adjustable components (air and gas) flow under constant pressure into channels 2 and 3 of Cornus /, annular slots are formed, formed by moving nozzles 4 and 5 and conical throttles 8 and 9, and then directed along the discharge nozzles to gas burner. The consumption of components at their constant temperature is controlled manually or automatically from an electric actuator, depending on the change in the load of the consumer, by axial movement of the nozzles 4 and 5 relative to the housing. When the temperature of the components varies with time (for example, inpj-i pre-heat the air in the heat exchanger), the specified composition of the components is maintained by axial movement of the conical throttles 8 cepiBOMOTOpoM W, the signal to which comes from thermocouples installed in the supply pipes. Initial adjustment of the device to a predetermined ratio of components is performed at fixed positions of nozzles 4 and 5 and conical throttles 8.

Subject invention

A device for mixing two gaseous media, for example, in gas burners, containing a housing with gas supply channels, one of which is fitted with a nozzle and a choke connected to the moving mechanism, characterized in that the ratio of the media 5 4 is constant during the change parameters at the inlet, the second channel is made isolated from the first and provided with a nozzle connected to the movement mechanism and a throttle connected to the servo motor.