SU1295144A1 - Gas burner - Google Patents

Abstract

The invention relates to energy and m. used to burn fuel gas in batch process furnaces. The invention allows for a wider range of control. The swirl is made four-way, the annular gap 2 is divided by radial partitions 8 into sections. Through each of the latter, one of the channels (K) 9, 10 is connected to the corresponding fuel feed pipe 4. At the same time, one pair of opposite K 9 is equipped with a cross-sectional area 3.5-4.7 times larger than the cross-sectional area another pair of opposite K, At nominal load on raw furnaces of periodic action, for example, pyrolysis, are connected to the fuel line through nozzles 4 and gap 2 K 9 and 10. When the load on raw materials decreases, K 9 larger sections and K 10 are disconnected from the fuel highway . When coke is burned out and the kiln is dried, K 10 of a smaller section is connected. 2 il, CO

Description

112

The invention relates to energy and can be used for burning fuel gas in process furnaces with periodic operation in the petrochemical and other industries.

The purpose of the invention is to expand the range of regulation.

FIG. 1 shows a burner, a longitudinal cut; in fig. 2 is a section A-A in FIG. one.

The gas burner contains an air-supplying body 1, inside which, with an annular gap 2, is located an air-impeller 3 in the form of an Archimedes spiral, and fuel supply pipes 4 connected to an annular gap 2, a vortex chamber 5 with a toroidal embrasure 6, placed behind the swirl 3 along the air flow , and a disk reflector 7 mounted with the possibility of axial movement.

The swirler 3 is made four-way, the annular gap 2 is divided by radial partitions 8 into sections, through each of which one of the channels 9 and 10 of the swirler 3 is connected to the corresponding fuel supply pipe 4. Moreover, one pair of opposite channels 9 of the swirler 3 filled with a cross-sectional area greater by 3.5-4.7 times the cross-sectional area of another pair of opposite channels. Fuel supply pipes 4 are connected to fuel line 11.

Gas burner works as follows.

At the nominal load on the raw material of the batch furnace, for example, pyrolysis, the fuel main 11 is connected via nozzles 4 and the gap 2 canals 9 and 10 of the swirler 3. When the load on the raw materials decreases (due to coil coking and other reasons) Channels 9 of a larger section work, channels 10 are disconnected from the fuel line 11. In such operations as burning Kok4 .. 2 sa, drying the furnace, etc., the channels 10 are connected to a smaller section. The air entering the burner body 1 is adjusted by means of a disk-shaped deflector 7 moving along the axis. The fuel-air mixture leaves the toroidal embrasure 6, burned with a flat torch on the refractory lining of the furnace.

Thus, the implementation of the swirler 3 chetyrehodnomnogo different sections with individually or in pairs working channels 9 and 10 from the fuel line. 11 allows you to extend the range of control of the burner in the fuel gas by two times without disturbing the shape of the torch at low production rates and to ensure the optimal thermal condition of the furnace coil at all stages of the process.

Formula of the invention

A gas burner containing an air supply housing, inside which, with an annular gap, is a swirler in the form of an Archimedes spiral and connected fuel supply pipes to the annular gap, a vortex mixing chamber with a toroidal embrasure located behind the swirler along the air flow, and discs. mounted with the possibility of axial movement, o t; In order to expand the range of regulation, the swirler is made four-way, annular, the gap is divided by radial partitions into sections, through each of which one of the Channels swirler is connected to the corresponding fuel inlet the pair of opposite channels of the swirler is made with a cross-sectional area larger by 3.5-4.7 times the cross-sectional area of another pair of opposite channels.

Editor M.Blanar

Compiled by L. Bulynko Tehred A. Kravchuk

Order.605 / 43

Circulation 495 Subscription

VNYIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

Proofreader A.Zimokosov

Claims (1)

Claim A gas burner containing an air supply housing, inside of which with an annular gap there is a swirl in the form of an Archimedes spiral and fuel supply pipes connected to the annular gap, a swirl mixing chamber with a toroidal embrasure, located behind the swirl in the direction of the air flow, and a disk reflector installed with the possibility axial displacement, about χ l and a part with the fact that, in order to expand the control range, the swirl is made of four-way, circular, the gap is divided by radial partitions on sections through each of which one of the swirl channel is connected to the corresponding fuel supply pipe, and one pair of opposite swirl channels is made with a cross-sectional area greater than 3.5-4.7 times the cross-sectional area of another pair of opposite channels. 1295144. ^And figure 1