Triple-flow vortex tube
Devices for separating dispersed particles from gases or vapors by centrifugal force are disclosed. The vortex tube comprises a body, an inlet duct, outlet ducts for the cold and hot gases, a liquid discharge duct, and a power separator. The inlet duct has a device for the introduction of methanol. The body comprises a vortex generator at the inlet duct. The body comprises a separator and a diaphragm with an inner conical surface, both defining an annular channel. The surface of the streamlined end of the separator comprises flutes. The separator is mounted to be capable of moving along the axis of the body and is pressed against the diaphragm by a spring. The inner portion of the body and the outer portion of the separator define a liquid chamber. A vortex reducer having a cross shape is mounted on the end of the power separator opposite the body.
1. A triple-flow vortex tube comprising:
a body characterized by its axis, an inlet duct equipped with a device for methanol introduction, outlet ducts for the cold and hot gases, a liquid discharge duct, and a power separator;
a vortex generator in the form of an Archimedean spiral located in a body at the inlet duct;
the body comprising a separator having a streamlined end and a diaphragm having an conical inner surface, the separator and the diaphragm forming an annular channel, a surface of the streamlined end of the separator comprising the flutes numbering from 2 to 0.2 D, where D is a diameter of the power separator in mm; a flute depth is 0.05 D-0.1 D; a flute width c=0.05 D-0.2 D; a radius of a curvature of the flute r=3 D-3.5 D, and an angle of deflection of the flute a=30-75°; the separator being mounted so as to be capable of moving along the axis of the body, the separator being pressed against the diaphragm by a spring with a force G, defined by a formula
G
=
ρ
v
2
2
×
S
×
Cos
f
,
where ρ is a gas flow density; v is the gas flow speed; S is an area of the streamlined end of the separator; Cosf is a cosine of a gas flow incidence angle;
the inner portion of the body and the outer portion of the separator define a liquid chamber; and
a vortex reducer having a cross-like shape and being located at an end of the power separator opposite to the body and mounted at a distance of at least 5 and no greater than 12 power separator diameters D to the body end, wherein the end faces of the vortex reducer have protrusions on each edge, a height L of each protrusion being selected from a range of 1 H to 1.5 H, wherein H is a thickness of a material of the vortex reducer.
2. The triple-flow vortex tube of claim 1 , wherein the methanol introduction device is made as a tube drilled-in on the side of the inlet duct or as an ejector.
3. The triple-flow vortex tube of claim 1 , wherein the methanol introduction device is made as an ejector.