DE1949449B - Swirl nozzle for evenly atomizing liquids - Google Patents

Description

The parameters for influencing the impact distribution by the swirl body are:

The depth of the swirl channels by parallel displacement of the boundary plane in front of or behind the axis of rotation of the swirl body,
lateral offset of the penetration of the swirl channels on the face of the swirl body compared to the radius,
the width of the swirl channels,
the height of the swirler.

Due to the different penetration of the swirl channels on the two end faces of the swirl body there are different inlet and outlet cross-sections for the liquid. Those differences can be compensated by the fact that the depth of the swirl channels from the radial to the opposite Penetration side is continuously enlarged. The cross-sectional adjustment can also take place by conical design of the swirl body. However, this limits the unchanged usability of the swirl body for full cone and hollow cone

atomization. The surcharge distribution can also through appropriate training of the nozzle swirl space to be influenced.

The different penetration of the swirl channels on the end faces of the swirl body gives the

ίο Possibility to generate a hollow cone atomization in that the end face of the swirl body with radial penetration of the swirl channels Liquid inlet facing is installed in the nozzle body. This multi-purpose use

Above all, speed means in terms of nozzles required performance series a significant improvement in the cost situation.

1 sheet of drawings

Claims (3)

1 2 the one end face of the swirl body essentially claims: | ichen on a radius and the other end face 1. Swirl nozzle for uniform atomization penetrates essentially on a secant, and of liquids optionally in the form of one that the depth of each swirl channel over the entire length Hollow cone or a full cone with a twist 5 through which the longitudinal axis contains, transversely to the body in the form of a cylinder or conical radius of the penetration of one end face with swirl channels, which means that the marked level is limited. draws that a swirl channel in each wind- The aforementioned objective features are Although lying obliquely to the longitudinal axis of the swirl nozzle from a swirl nozzle for full cone atomization Level is arranged, which is the one end face of the io by the German patent application W 1424, class Swirl body essentially on a radius 61 a, has become known per se, the invention is and the other end face essentially on the other hand, however, to be seen in the fact that the twist liner Secant penetrates, and that the deep body of the known swirl nozzle by incorporation with each swirl channel along its entire length due to the interchanged end faces for hollow cone atomization containing the longitudinal axis, transversely to the radius of FIG. 15 can be used. Penetration of one end face. The design of the swirl body according to the invention Level is limited. results in a simple way not only a uniform 2. Swirl nozzle according to claim 1, characterized in that the atomization cone is acted upon by a indicates that the end face of the swirl body has a large pressure area, but it can be used with it with radial penetration of the swirl channels of FIG. 20, all desired scattering angles from 15 to over The nozzle orifice is facing, thereby achieving a full 120 °. Since the swirl body according to the invention cone loading is achieved. be provided with more than two swirl channels 3. Swirl nozzle according to claims 1 and 2, can, can achieve a very uniform Beaufschladakter that the end face of the supply distribution of the atomizing cone.
Swirl body with radial penetration of the 25 The A b b. 1 to 4 show the principle of the invention swirl channels facing the liquid inlet, using the example of a swirl nozzle with four swirl channels in the swirl body, whereby a hollow cone is applied to the swirl body. will. A b b. 1 shows a nozzle with nozzle body 3 and 3 inserted swirl body 1 in section, the 30 swirl body is installed in such a way that a full cone atomization occurs results; The invention relates to a swirl nozzle. Fig. 2 showed a wire body 1 with one of the uniform atomization of liquids - four channels 2 in side view; in the form of a hollow cone or a solid Fig. 3 shows the end face 1 of a swirl body, kegcls with a swirl body in the form of a cylinder 35 which on four radii from the Dtallkanäler: 2 through- or stumps with swirl channels. is penetrated; With such nozzles previously had to be for hollow or A b b. 4 shows the opposite end face 3 Full cone atomization different swirl bodies, a swirl body, which on four secants of the is mostly penetrated in different nozzle housings, swirl channels 2, be used. In contrast to the hollow cone 40 The mode of operation of the one shown in Fig. 1 Atomization is the creation of a satisfactory swirl nozzle is as follows: Full cone sparging relatively difficult, before the liquid flowing from direction A of the nozzle under pressure, especially with regard to a uniform surface area, flows upwards, increasing its impact on the sputtering cone. Flow velocity in the circumference of the swirl. For the solution of this problem there are different channels 2 lying on the body 1. Became known through the oblique designs. According to the German position of the swirl channel 2 to the axis of rotation of the swirl patent specification 448 008, swirl bodies, for example, how the liquid particles are used for the hollow cone lubrication, are axially deflected in the inflow direction and are provided with a central bore in order to create the oblique flow direction more or less to be filled in as a concentric hollow cone. E ^; Such a partial flow of preferably rectangular, transversely uniform distribution can only be cut into the swirl space. Achieve the pressure range limited there by the Abeincn. The swirl caused by the steering is the greater, the further. This consists in the wcscnt swirl body are removed. The swirl components borrowed from two inclined guide surfaces, which are interrupted by recesses in the flow that forms in the swirl space. This swirl body therefore has the disadvantage, continuously in the direction towards the center, that the division into two from the load to zero, so that this occurring impact becomes apparent. In order to keep this unevenness in the speed distribution a uniform, fully tolerable limit, a relatively 60 jet is created from the nozzle orifice 4 between the cone impact at the exit of the atomizing nozzle orifice and the swirl body,
large swirl space required. The application can in the context of the ErHn-The invention is based on the task of finding a manure through various structural measures swirl body, which can be influenced by a large pressure on the swirl body, so that either area for a uniform full cone as the inner or outer zones of the nozzle jet hollow cone atomization is suitable. To solve the 65 stronger or weaker pressures. This problem is proposed according to the invention, e.g. B. be of importance when several that each spray a swirl channel in a skewed to the longitudinal nozzle in the association, as in plant protection, axis of the swirl nozzle lying plane is arranged, and the individual nozzle jets overlap.