SU1288451A2 - Ignition burner - Google Patents

Abstract

The invention relates to energy, m. used to ignite the fuel in the combustion devices and is an improvement of the invention in auth. No. 1188459. The invention improves the reliability of ignition. Gas through the tube 8 and the nozzles 9-11 is fed into the stream of air flowing through the choke choke 2. Part of the gas through the nozzle 9 flows into the hole 6, injecting air from the recess 7 into the chamber (K) 3. In the latter, the mixture ignites from the spark Yes. Part of the gas through the nozzle 10 flows along the end of the lattice 2 in the direction of K 3, air flow and hot gases from the circulation zone (SC). This fuel is ignited by a burning jet flowing out of a short-circuit, and it maintains steady burning in an ecplastic zone. The remaining part of the fuel flows out of the nozzle 11 located at the end of the SC, ignites from it and forms the main torch of the burner. 2 Il. § SL 36 1 539 S 11 ..U ... U. 8 th eo 00 4; JV "A 1CH FigL

Description

The invention relates to energy, can be used to ignite fuel in various combustion devices and is an improvement on the known device according to the author. № Н88459,

The aim of the invention is to improve the reliability of ignition.

FIG. 1 shows a burner, general view; in fig. 2 is a section A-A in FIG. I.

The ignition burner contains a wind-up casing 1 and a throttle grid 2 with a cylindrical ignition chamber 3, inside which is placed an electrode 4 with a disk stabilizer 5. The ignition chamber 3 is connected by an opening 6 to an internal cavity of the casing 1 through a recess 7, Inside the casing 1 there is a gas tube 8 with nozzles 9-11, one of which is aligned with the orifice 6, the other at the level of the output end of the throttle lattice 2, and the third at a distance of 0.8-1.5 of the equivalent diameter of the throttle lattice 2 from its butt end.

The pilot burner operates as follows.

Air is supplied to the housing 1, flows through the throttle grid 2 flows from the burner. Gas through the tube 8 and the nozzle 9-: 1 is fed into the air stream. Part of the gas through the nozzle 9 in the form of a jet flows into the hole 6, injecting air from the recess 7 into the chamber 3, where the mixture ignites from the spark discharge between the disk stabilizer 5 of the electrode 4 and the wall of the ignition chamber 3. Air gas

the mixture enters the ignition chamber 3 with a practically constant air flow rate of about 0.5-0.6, at which, as practice shows, reliable

ignition.

Part of the gas through the nozzle 10 in the form of a jet flows along the end of the throttle lattice 2 in the direction towards the chamber 3 of ignition, sucking in

air and hot gases from the circulation zone. This fuel is ignited by a burning jet emanating from chamber 3 of ignition and maintains steady burning in the zone

circulation,

The residual part of the fuel in the form of a jet flows out of the nozzle 11 located at the end of the circulation zone, ignites from it and forms

main torch pilot burner.

Claims (1)

Formula izob. reteni Pilot burner auth.St. No. 1188459, characterized in that, in order to increase operational reliability, one of the output nozzles of the fuel tube is located coaxially with the hole connecting the ignition chamber with the body cavity, and the next nozzle along the fuel flow is at the end section of the throttle grid with sides of the ignition chamber, A VNIIPI Order 7791/35 Circulation: 495 Subscription Proizv.-polygr. pr-tie, Uzhgorod., st. Project, 4