SU1003911A1 - Injection nozzle - Google Patents

Description

() SPRAYER

one

The invention relates to a device for spraying liquids and can be used for accelerated cooling of steel products during their thermal hardening, as well as to devices that require uniform and controlled distribution of the density of the sprayed liquid over the cross section of the torch.

A nozzle is known. It contains a housing with a cone-shaped outflow cavity and a spray nozzle and an insert with swirl and axial channels interconnected at the fluid inlet into the turbulence channel iT.

In the known nozzle, the insert is fixed in the housing, which does not allow adjusting the spray pattern.

Closest to the proposed technical essence and the achieved effect is a nozzle comprising a body ending with a nozzle with an output channel and located in the body with the possibility of axial movement of the insert with the vortex and axial channels with the formation of a mixing 2 between the nozzle and the insert.

However, in the well-known nozzle, making the nozzle in one piece with the body does not allow expanding the technological capabilities of the nozzle, since the diameter of the output channel is constant and, moreover, this design of the nozzle complicates the process of adjusting the position of the liner inside

, 5 bodies, as this adjustment is carried out through the narrow exit channel of the nozzle, causing /; the complexity of this process.

Claims (1)

The purpose of the invention is to expand the technological capabilities of the nozzle at. providing a uniformly filled torch and simplifying the process of adjusting the density of the sprayed liquid over the cross section of the torch. 310 The goal is achieved by the fact that in a nozzle containing a body ending with a nozzle with an output channel and located in the body with the possibility of axial movement contributions with swirling and axial channels with the formation between the nozzle and the liner of the mixing chamber, the nozzle is designed as a replaceable the insert is installed in the housing with the possibility of axial movement relative to the liner, with the diameter of the mixing chamber being selected within (2-2.5) d, and its length - in the range (1.5-2) d, where d is the output diameter channel. The drawing shows a nozzle, a longitudinal cut. The nozzle has a cylindrical body 1 with an inner surface made with a through thread, in which the liner 2 is mounted with the possibility of axial movement and a spray nozzle made in the form of a replaceable insert 3 with an inner conical surface and output channel 4. A movable insert 2 and an insert 3 in the housing form a mixing chamber 5. In the body of the insert 3 and in the insert 2, holes 6 and 7 are made; to adjust their position. The movable liner 2 has swirl channels 8, made in the form of four channels at an angle of 27-30 to the longitudinal axis, and an axial cannula E communicating with each other in the mixing chamber 5. On the outer surface of the housing 1 from the insert side 3 locking wines volume 10 is fixed nozzle 11 with the possibility of longitudinal movement along the nozzle body. The HOUSING 1 is screwed onto the nozzle 12 connected to the supply pipe about the (hanging fluid (not shown). The diameter D of the mixing chamber is selected within (2-2.5) d and its length L is within (1, 5-2) d, where d is the diameter of the output channel, mm. At L 1.5d and D 2d, the liquid supplied to the nozzle emerges as a continuous jet, and at and, 5d - as a hollow cone, i.e. The condition of obtaining a uniformly filled torch is not ensured, which is necessary when cooling the rolling stock. The nozzle works as follows. 14 Through the nozzle 12, the liquid uniformly fills the cavity above the liner 2, and the passage through the latter is separated by means of the vortex channels 8 and the axial channel 9 into axial and lateral flows. In the mixing chamber 5, the interaction of the side (tangential 7 and axial flows causes rotation of the fluid and subsequent ejection through the spray nozzle, i.e. through the channel. The spot of the plume is focused on the cooled surface to further adjust the density of the plume, which in turn ensures the achievement of the required intensity of rolled metal cooling and is performed by moving the cylindrical nozzle 11 along the nozzle 1 body. t the technological capabilities of the nozzle due to the possibility of replacing inserts with different diameters of the exhaust channels, at the same time, the conditions for adjusting the dimensions of the mixing chamber are facilitated, because the adjustment is assembled when connected to the supply source (drips are made by moving the insert rather than Invention Nozzle, comprising a housing ending in a nozzle with an output channel and located in the housing with the possibility of axial movement of an insert with swirling and axial channels b Between the nozzle and the liner of the mixing chamber, it is necessary to ensure that, in order to expand the technological capabilities of the nozzle while ensuring a uniformly filled torch and simplify the process of adjusting the density of the sprayed liquid over the torch section, the nozzle is made in the form of a replaceable insert, in the housing with the possibility of axial movement relative to the liner, with the diameter of the mixing chamber selected within (22, 5) d, and its length within (1.52) d, where d is the diameter of the output channel. Sources of information taken into account during the examination 1. L. Vitman by nozzles. ML, p. 121. 12 eleven 9 51003911 Spraying liquids2. Authorship of the USSR Energoizdat, 19b2, iff573197, cl. B05 B T / C +. LE (prototype).