Steam nozzle b. a. et al

 

(57) Abstract:

Usage: for atomization of heavy fuels by burning residual fuel oils of different brands. The essence of the invention: on set with the possibility of axial movement of the Central tube 2 is made of annular ribs 3, adjacent to the periphery of the tube 1 and is provided with rectangular slots 5 with length and width, components, respectively, of 0.5 . . . of 0.7 and 0.2 . . . 0,6 width of the ribs is equal to the distance between the ribs 3 and the component of 0.3 . . . 0,5 outer diameter of the Central pipe 2. On the periphery of the insert 6 in the confused plot nozzle installed spray nozzle 8 with slots 9 in the area of its trailing edge, the annular channel 4 is spring-loaded throttle 7 made in the form of annular projections with hollow edge, opposing located on the inner peripheral surface of the pipe 1 and the outer surface of the insert 6 and the perforated nozzle 12 is made in the form of a truncated cone, facing a large base to the body, its perforation is made in the form of longitudinal slits, and the slits 5 adjacent ribs 3 are located on diametrically opposite sides. 1 C. p. F.-ly, 1 Il.

The invention relates to a steam nozzle and can be used is Ranka Shukhov, containing the fuel channel with the nozzle located at the center, a steam channel with a nozzle.

Known nozzle, comprising a housing with a confused-cylindrical outlet nozzle and posted on its axis with the formation of the annular channel box, is connected to input respectively coaxially to them periphery of the fuel pipe and the Central pipe for steam, and a perforated nozzle, mounted behind the exit nozzle body.

The disadvantage of nozzles is small heating fuel, passing through the annular space formed outer and inner tubes, no mechanical impact on the dilution of the fuel and supply the fuel from the annular gap to the steam jet without pre-spray, in addition, mounted on the diffuser nozzle with having on the end nozzles destroys the flow of the fuel-steam mixture and reduces the dispersion due to the accumulation of fuel in front of the nozzles of the diffuser, fuel leaking when you stop the nozzle due to the lack of valve.

The purpose of the invention is the increased efficiency and reliability.

The goal is achieved in that the nozzle is further provided with executed in the Central tube of annular ribs, the Noi on the periphery of the insert in a confused area of the nozzle, and spring-loaded throttle, placed in the annular channel and is made in the form of annular projections with oblique edges, opposing located on the inner peripheral surface of the pipe and the outer surface of the insert, while the Central pipe is installed with the possibility of longitudinal movement and every edge is made with a rectangular slot having a length and a width, comprising: 0,5. . . of 0.7 and 0.2. . . 0,6 width of the ribs is equal to the distance between the ribs and part of 0.3. . . 0,5 outer diameter of the Central tube, and the slot nozzles have a spherical surface.

In addition, a nozzle provided with a nozzle, made in the form of a truncated cone, facing a large base to the body, its perforation is in the form of longitudinal slits, and the slits of adjacent ribs are located on diametrically opposite sides.

The drawing shows a steam injector.

The nozzle includes an outer fuel tube 1, into which is inserted the tube 2, the annular ribs 3 forming chamber 4, the pipe 2 is installed with the possibility of longitudinal movement and each rib 3 is made with a rectangular slot 5, having a length and a width, comprising respectively the outer diameter of the pipe 2, the adapter 6, which has a spring-loaded throttle 7 made in the form of annular projections with oblique edges, opposing located on the inner surface of the pipe 1, the spray box 8 with slots 9, spring 10, the housing 11 with confused-cylindrical outlet nozzle, the nozzle 12, is made in the form of a truncated cone, facing a large base to the body, its perforation is in the form of longitudinal slits, and the slits of adjacent ribs are located on diametrically opposite sides.

The nozzle operates as follows.

The fuel is fed under pressure into the annular channel formed by the pipes 1 and 2 and passing through rectangular slots 5 of annular ribs 3 and camera 4, and then overcoming the spring loaded choke 7 and through holes 9 insert 8 is emitted to the output nozzle confused-cylindrical body 11, which channel tube 2 is fed with steam, where fuel, engaging in interaction with the steam flow through the longitudinal slit of the conical head 12 is ejected into the combustion space in the form of fuel-steam mixture.

The invention improves the efficiency and reliability of the injector through the fuel in the annular channel through the holes 5, cardeston between the ribs and part of 0.3. . . 0,5 outer diameter of the tube 2, that allows to intensify the heat transfer and dilution of the fuel on its progress, to eliminate fuel leaking after stopping the nozzle due to the placed in the annular channel of a spring-loaded throttle 7, to improve the atomization of fuel flow into the steam flow through the installed spray insert 8 with slots in the area of its trailing edge and located in a confused-cylindrical nozzle section body 11, and also qualitative distribution of the fuel-steam mixture formed in the nozzle area of the housing 11 and extending through the longitudinal slit made by a truncated cone nozzles 12. (56) A. Wittmann A. , Katsnelson B. D. , pale And. And. the Spray liquid nozzle. M , L. : Gosenergoizdat, 1962, S. 144, Fig. 6-28.

Kulagin L. C. , Moroshkin M. Y. Nozzle for atomization of heavy fuels. M. : Mashinostroenie, 1973, S. 136. Fig. 62.

1. Steam nozzle, comprising a housing with a confused-cylindrical outlet nozzle and posted on its axis with the formation of the annular channel box, is connected to input respectively to coaxially with them periphery of the fuel pipe and the Central pipe for steam, and a perforated nozzle set is further equipped performed on the Central tube of annular ribs, adjacent to the periphery of the pipe, a spray nozzle, with the slits in the area of its trailing edge that is installed on the periphery of the insert in a confused area of the nozzle, and a spring-loaded throttle, placed in the annular channel and is made in the form of annular projections with oblique edges, opposing located on the inner peripheral surface of the pipe and the outer surface of the insert, the Central pipe is installed with the possibility of longitudinal movement, every edge is made with a rectangular slot having a length and a width, comprising, respectively, of 0.5 - 0.7 and 0.2 - 0.6mm width of the ribs, equal to the distance between the ribs and part of 0,3 - 0,5 outer diameter of the Central tube, and the slot nozzles have a spherical surface.

2. Nozzle under item 1, characterized in that the perforated nozzle is made in the form of a truncated cone, facing a large base to the body, its perforation is made in the form of longitudinal slits, and the slits of adjacent ribs are located on diametrically opposite sides.

 

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