DE1501943A1 - Atomizer - Google Patents

Description

PATENT Attorney DIPL.-INQ. QERHARD SCHWAN 1 O U 1 3 4-3 8 MUNICH «· QOERZER STRASSE 15

2 * April 1969

Union Carbide Corporation

Atomizer

The invention relates to atomizers for atomizing a mixture of a gas and a liquid fuel at high speed (at least Mach 0.5) with converging ή gas and liquid channels.

Known atomizers are complicated and due to the precision, with which the individual parts are to be manufactured and assembled, expensive. Other problems arise with known atomizers from the costly maintenance, which in turn is a source of danger especially when explosives are atomized should.

The invention is primarily based on the object of creating an 'atomizer which is simply constructed and economical and which can be kept relatively easily in a non-operational state during a considerable service life, _{or the like}

This task is based on a nebulizer of the type mentioned at the beginning mentioned type according to the invention in that the liquid

909886/0460

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communication channel is connected to an annular groove, those in the inner wall of a cylindrically shaped part of the gas duct, or in the endioand one in such a part of the gas channel protruding liquid pipe is arranged.

In the atomizer according to the invention, at least one part the UJand of the gas channel through the liquid fuel constantly kept wetted »The liquid fuel is absorbed by the rapid gas flow and effectively atomized.

The liquid channel preferably opens tangentially into the Bottom of the annular groove arranged on the inner wall of the gas duct part. According to a modified embodiment of the invention, the end wall of the liquid pipe has a recess on the inside, which is surrounded by the groove and with this is connected by side openings.

The invention is explained in more detail below on the basis of exemplary embodiments in conjunction with the drawings. It shows:

Figure 1 is a partial view of an atomizer according to the invention, partly in side view and partly in perpendicular cross-section,

FIG. 2 is a partial view, partially in plan view and partially in section along the line 2-2 according to FIGS ^{. 1 and 909886/0460}

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FIG. 3 shows a partial view of a modified embodiment of the invention, essentially in a vertical direction Cross-section"

The atomizer according to FIG. 1 consists essentially of a tubular body 10, preferably made of (detail, with a longitudinal channel 12 through which a predetermined, pressurized gas is passed from a corresponding, non-illustrated gas source in such a way that the gas 14 the channel with relatively high speed, d _£ h. at least ä wax 0.5, flows through. the inner ring wall 16 of the channel 12 is provided with an annular groove 18 into which a liquid fuel 20, such as oil, via a channel 22 is introduced into a pipe 24, which is connected to the body 10. A transverse channel 26 is formed in the U / and of the body 10 to pass the oil through the U / and. The arrangement is such that the oil of the Groove 18 is fed in Tangentia1rιchtung, but this does not represent an angsmer kmal. What is essential, however, is that at least part of the U / and 16 of the gas channel is continuously wetted with the liquid to be atomized 'will c

During operation, the liquid to be atomized runs through the adjacent to the downstream Uiand of the gas channel When the edge of the groove flows, the oil initially sticks to the palm of the hand and is then torn off in elongated threads, which essentially break up into tiny droplets "

90988S / G460

LiCT = D

FIG. 3 shows a ceiling burner as a modified embodiment 30, which has an elongated tube 32 through which. an oxidizing agent, for example oxygen gas 34, is thus supplied is that it flows through the pipe at high speed. Inside the tube 32 is a tube 36, through which the liquid fuel 38 into the central area of the Oxygen stream is introduced * The lower end of the tube 36 is provided with a closure part 40, the transverse Has liquid outlet openings 42, which with a relatively deep groove 44 are in connection, which is open to the lower end face of the tube 36 *

During operation, the liquid fuel, for example oil, flows down through the groove 44 and constantly wets the adjacent surface on the lower face of the tube. Of the Fuel is entrained and atomized by the oxidant gas stream that is passed through at high speed, when it emerges from the lower end of the tube 32,

The embodiment according to FIG. 3 is particularly distinguished by this from that the burner 30 is a supersonic speed keeps a burning flame because a partial vacuum is formed directly below the pipe 36 by the oxidant gas stream, that causes a circulation movement and a constant burn.

909885/0460

Claims (3)

2%. April 1969 claims 1. Atomizer for atomizing a mixture of a gas and a liquid fuel at high speed (at least Mach 0.5) with converging gas and liquid channels, characterized in that the liquid channel is in communication with an annular groove (18, 44), the of the gas channel (10) or in the end wall (40) egg i nes is disposed in such a portion of the gas channel (32) projecting into the liquid pipe (36) in the inner wall (16) of a portion (12) cylindrically formed. 2. Atomizer according to claim 1, characterized in that the liquid channel (22) tangentially in the bottom of the Inner wall (16) of the gas duct part (12) arranged annular groove (18) opens. 3. Atomizer according to claim 1, characterized in that the end wall (40) of the liquid pipe (36) on the inside has a recess which is surrounded by the groove (44) and is connected to this through lateral openings (42). 909886/0460 -.j'iio · !. v. 4. <l. Γ L e r s e i t e