SU1218248A2 - Air-atomizing burner - Google Patents

Description

The invention relates to energy and can be used in combustion chambers, process furnaces and furnaces of boilers, and is an improvement of the invention according to author 1044890.

The purpose of the invention is to improve the quality of splitting.

The drawing shows schematically the proposed nozzle, a longitudinal section.

The pneumatic nozzle includes a housing 1 with channels 2 for supplying a driver, a swirler 3 with tangential fuel channels 4 and a coaxially mounted conical divider 5 having a cylindrical shank 6 forming an annular slot 7 with the swirl ring 3 Channels 2 for feeding a spray gun are tangentially connected to the exit section of the annular gap 7 by channels 8 and directed in the direction opposite to the fuel channels 4. The shank b of the splitter 3 is made c. 9 for additional feeding the puller, and in its middle section Execute the annular recess 10 a decreasing downstream of the atomizer section, the maximum depth is equal to the depth of the grooves 9 for supplying additional atomizer. A resonant cavity 11 is formed on the conical surface of the dissector 5. The swirl 3 has a stepped recess 12 on the inner surface, the 13g stage of which is located through fuel channels 4 and channels 2 of the atomizer feed ring, and the ring target 7 around the shank 6 section- jja to the coaxial channels 14 between - your shell 15, resting on the level 13 of the notch 12 swirler 3.

Compiled by M.Vatsuro Editor S.Lisin Tehred A. Babinets Proofreader M.Samborska

Order 1122/49 Circulation 515 Subscription VNIIPI USSR State Committee

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

Branch PPP Patent, Uzhgorod, Proektna St., 4

ten

2182482

The last in the zone of the stepped recess 12 is made with an annular groove 16 of the diffuser-confused profile, and the shell 15 at the exit is made with the inner chamfer 17 and its frontal section is placed in the zone of the diffuser section of the annular groove 16. The swirler 3 is made of two parts, matching along the plane passing through step 13. A part of the swirler 3 containing fuel channels 4 is made together with the shell 15 in the form of one piece. The other part of the sprayer 3, which contains the channels 2 for supplying the sprayer 3, is made as a separate part.

The operation of the nozzle is carried out as follows.

The fuel is fed into the tangential channels 4 made in the vortex 3, and in a twisted state is directed into the annular gap 7, where p & flows along the inner wall of the shell 15 and through its bevel 17 in the form of a thin uniform film enters the annular groove 16, whence after mixing with the dispenser

15

20

25

g

 Well flows from the nozzle.

The atomizer is fed into the housing 1 through the channels 2 and through the channels 8 in the swirler 3 enters in a twisted form into the recess 12, at the exit from which it interacts as a ring jet with the fuel film in the; ring groove 16. The other part of the atomizer enters grooves 9 and into the annular recess 10, along which it is directed into the resonant cavity 11. The oscillations generated in the resonant cavity 11 affect the fuel-air mixture, contributing to a better quality of embroidery.

Claims (1)

PNEUMATIC INJECTOR by ed. St. No. 1044890, characterized in that, in order to improve the quality of sawing, the swirl in the zone of the stepped recess is made with an annular groove of the diffuser-confuser profile, and the shell at the outlet is made with an internal chamfer and its end cut is placed in the zone of the diffuser section of the annular groove. 15 10 8 7 73 14 1412 6 9 4 3 Spray Fuel