SU260797A1 - GAS TURBINE DEVICE - Google Patents

Description

This invention relates to gas burner devices designed to squeeze natural gas in the furnaces of power plants operating under pressure.

Gas-burning devices are known, comprising a housing within which air guide vanes, a perforated gas supply manifold and a combustion stabilizer are placed.

The disadvantages of the known devices are significant losses of air and gas pressure, in the burner, unstable burning with large excess air and - steam burning with fire vapor, the burning stabilizer failing due to its burning from the high-temperature flame. Because of these drawbacks, the known devices cannot be successfully used when burning gas in furnaces: under pressure.

The purpose of the described invention is to eliminate these drawbacks and ensure the operation of the burner with a furnace under Pressure.

To achieve this goal, the air guide blades are made with one other overlapping, the gas supply manifold is located along the middle circumference between the walls of the housing and the Stabilizer at a distance of at least 1.6 diameters of the burner outlet orifice and is stabilized at the output torus sections of a conical insert with openings for outlet of saz jets. The drawing schematically shows the proposed device. The gas-burning device includes a housing L inside of which are positioned at an angle of 40-50 ° to the axis of the air supplying vanes 2, which overlap each other at an angle of 3-5 °. A pipe 3 is provided for air supply to housing 1.

two collectors: an intermediate collector 4 in the form of a circular box attached to the body), and the main collector 5 in the form of a perforated ring with several outlet pipes 6.

To ensure uniform distribution of gas in the air flow, the collector 5 is installed at an average circumference between the walls of the housing and the stabilizer 7 of the torus, and the exhaust ports 8 are located in

three p yes.

The stabilizer 7 consists of an axially arranged central pipe 9, at the outlet of which there is a conical insert

iO with 11 holes for pelvic jets. Feed the pelvis to the stabilizer. It is carried out through the nozzle 12. For igniting the device, an electric glow plug 13 is used, which is mounted along the axis of the body / at the outlet.

Gas burner device works as follows. The air is supplied through patrol to 3, twisted by blades 2, and mixed with gas coming from manifold 5 in the area between the collector and the outlet. Next, the gas-air mixture enters the furnace, where it is ignited by the flame of the combustion stabilizer 7.

During ignition, the gas supplied to the stabilizer 7 is ignited by the glow plug 13. The amount of gas reaches 36% of the total flow. The gas cools the stabilizer and prevents it from burning.

Subject invention

Claims (2)

1. A gas-balancing device comprising a housing with air guide pads, A perforated collector located inside the housing and a combustion stabilizer located along the housing axis, characterized in that, in order to provide szhIgani gas in the pressure furnace, the blades They are made with overlapping one another, and the collector is located along the middle circumference between the walls of the casing and the stabilizer, at a distance from the exit section of not less than 1.5 times the diameter of the burner outlet. 2. A device according to claim 1, characterized in that the flame stabilizer is made in the form of a conical insert installed at the outlet section rOtpejiKH with openings for the exit of gas jets. I Air