SU203139A1 - GAS EJECTOR - Google Patents

Description

HsiBQCTiHbi gas ejectors containing forcamara you | ssoho gas, kzm & mixing and - nozzles for the supply of 1 view, condenser | p1nogo and low pressure gas. With an increase in the degree of compression of IB of such eukstv | irahs, the efficiency of the EI decreases, since in order to eject a predetermined amount of iz1k1 on 1por: gaseous gas, a very large amount of high altitude gas is required.

The proposed ejector differs from the known ones in that the walls of the mixing chamber are made; In the form of a support strip, between whose turns there is a salt and a spruce for the passage of high and vapor gas.

Such an ejection of the ejector makes it possible to carry out a supply of extrusion gas distributed along the axis, as in a myostatic ejector, and thus to increase its production capacity.

The drawing shows schematically the proposed ejector in longitudinal section.

The ejector contains the pre-chamber 1 and the mixing chamber 2, the walls of the 1k0r0y are formed with an alcohol tape 3. The pitch of the helix along the axis of the ejector is less than the width of the tape, and the helix pitch along the radius is such that a saplov slit is formed between adjacent turns lv1gga through which the high-pressure gas flows The mixing chamber is a laral axis of the ejector or at a certain angle to it. P-profile of appropriately lengy, CAN get a gap in the form of a narrowing

or supersonic nozzle. In the case of a narrowing salt and a subsonic velocity of a high-pressure gas at the entrance to the mixing chamber, the pressure drop in the nozzle decreases downstream and, consequently, the velocity of the high-pressure gas decreases. At supersonic high alorna gas speeds, by varying the helix pitch along the axis and along the radius of the ejector and the tape THICKNESS, any predetermined distribution of the M numbers of the high-pore flow along the mixing chamber can be obtained corresponding to the increase in pressure along it. The number of turns of the helix and thickness of the tape with a corresponding distribution of numbers

You can vary the high-aluminal gas pressure, the ejection coefficient and the degree of compression of the ejector.

It has been established that the proposed ejector is much better than a single stage one and its efficiency corresponds to a four stage ejector, but twice as long as the latter. The invention is intended for use in the chemical gas industry in the design of aerodynamic pipes and stands.

Subject invention

A gas ejector containing a high-pressure pre-chamber: p; n6 gas, a mixing chamber and nozzles for supplying high-pressure gas and a low gas pressure, characterized in that

In order to increase productivity, the mixing chamber steaks are made in an IB form of a spiral tape, the meladuous coils of which are formed by nozzles sh, spruce for passing the view window.

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