SU1741809A1 - Device for producing aerosol of common salt - Google Patents

Abstract

Use: obtain therapeutic breathing mixtures. SUMMARY OF THE INVENTION: The air duct 3 of the device has a constriction 5, in the wall of which an adjustable air throttle is placed in the form of an aperture 8 with a flap 11 for connecting to the chamber 6, which is additionally connected to the wide part 10 of the air duct by channel 9. 1 sludge.

Description

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The invention relates to medicine, in particular, to devices for producing salt aerosol in the treatment of patients with bronchial asthma under conditions of artificial microclimate chambers.

A device is known where the air, the passage through the saturating filter, is enriched in salt aerosols.

However, in this case, the saturation will be insufficient.

It is also known a device comprising a housing, a fan, a mill, an air duct, a heater, and a filter.

The air is blown through the Heater by a fan, where it increases its temperature, the passage past the mill, picks up the ground salt and carries it to the filter consisting of glass rods, which are electrified when rubbed against air.

In this device, small particles of salt fly through the filter without lagging, and the large electrify and stick to the filter under the action of electrostatic forces. The coarse particles then lose their charge and fall back onto the hot heating element, evaporate and again flow up to the filter.

However, the dispersion of the aerosol at the output of the device depends largely on the size of the salt particles that are formed in the mill, and this factor does not provide the possibility of obtaining particles of a given dispersion,

The purpose of the invention is the ability to control the dispersion of the aerosol,

The device comprises a fan 1 with an electric motor 2, an air duct 3 with heater A and a constriction 5. With the air duct 3, a salt grinding chamber 6 is connected to the mill 7 through an opening 8 in the narrowing wall 5, the camera 6 has an additional channel 9 for communication with the wide part 10 of the air duct. The damper 11. fixed with the opening 8, forms an adjustable air throttle connecting the restriction 5 to the chamber 6.

Outlet 12 is connected to an air duct leading to an artificial microclimate chamber.

The device works as follows.

Salt is loaded into mill 7 through a door in chamber B (not shown). Door

closes hermetically. After that, pressing the button turns on the mill 7 and the fan 1. The air enters the heater 4 through the expanding duct 3 and heated in it enters the constriction 5. In

0 narrowing 5 the flow rate is maximum, and the pressure is minimal, therefore through the hole 8 air is sucked out of chamber 6 with salt particles. To the place of air left from the chamber, a new portion of it flows through channel 9 from the wide part 10 of the duct, where the speed is reduced, pressure increased. Thus, during the operation of the device, a vortex is formed, which circulates from chamber 6 through opening 8 into the narrowest section of the duct, then to a wide part of it, and from there through channel 9

0 back into chamber 6. The speed of this vortex depends on the size of the hole 8, which is regulated by the flap 11. The lower the velocity of the vortex, the smaller the size of the salt particles it can carry to the main

5 flow through the hole 8. The size of the gap can be adjusted so that the salt particles are within the range of & µm and lower than the application to conditions in salt workings.

0 The described device provides the possibility of obtaining a given dispersion of the aerosol, is quite simple in design in operation.

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Claims (1)

Invention Formula An apparatus for producing a salt spray containing an air duct having a constriction, a heater, and a salt grinding chamber connected to the air duct with a mill characterized in that. that, in order to control the dispersion of the aerosol, the salt grinding chamber is connected to the duct via an adjustable pneumatic channel installed in the duct wall at its narrowed portion, and has a channel for communication with the wide part of the duct.