RU2393882C1 - Device for obtaining aerosol - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention refers to medical engineering and can be used to create a microclimate with controlled parametres for the treatment and prevention of respiratory diseases. The device for obtaining aerosol includes a framework, an air duct with an agitator of air flow at the inlet, a chamber for saline material connected with the duct with inlet and outlet holes, and a shredder of saline material in the form of crushing framework with a rotary drive. The chamber is divided into two parts with movable horizontal wall made with an option of vertical movement. The crushing framework is placed at the bottom part of the chamber. The upper part of the chamber is interconnected with the duct with inlet and outlet holes. The movable part is made with at least one additional flat edge perpendicular to its surface directed towards the crushing framework and is placed perpendicular to the direction between the inlet and outlet holes of the chamber. The edge height is designed in such a way that it does not reach the crushing framework.

EFFECT: obtaining aerosol out of saline material in the device structurally simpler, cheaper to manufacture, more productive and more economical in operation due to time-sharing of processes of saline material fragmentation and its delivery to the premises.

5 dwg

Description

The invention relates to medical equipment and can be used to create a microclimate with adjustable parameters for the treatment and prevention of respiratory diseases.

A device for producing a dry aerosol is known, comprising a housing, an air duct with an inlet air inducer located in a chamber in communication with the air duct, a straw chopper in the form of a crushing body with a rotation drive and a separator (SU 1630834, A61M 13/00, published 1991.02.28) .

This device has a low aerosol output of minimal size dispersion and the resulting low productivity.

A device for producing an aerosol containing a housing, an air duct with an inlet air flow inducer is known.

The inducer of air flow is placed in a chamber in communication with the duct. The grinder of the salt material in the form of a crushing body has its own rotation drive (SU 1793932, А61М 13/00, published 1993.02.07).

Such a device has a significant operational drawback due to the fact that instead of the aerosol size necessary for treatment, it gives out the entire particle size spectrum - from 0.2 μm to 2 mm.

For treatment, a minimal and very narrow size dispersion of particles of salt material in the range from 0.2 to 0.5 microns is required. Larger aerosol particles have no therapeutic value and make treatment difficult, and particles larger than 1 μm sediment for several minutes, creating a slippery layer of salt on the floor.

In the known device, this disadvantage is proposed to overcome the installation of a separator (separator) of large particles of aerosol, operating due to an additional compressor.

In addition to the general structural complexity of such a device, it does not eliminate an important drawback of the system - the low practical yield required for the treatment of aerosol size (from 0.2-0.5 microns). In practice, it is not even the loss of salt material that is important, but the time required for the economics of treatment to fill the treatment room with the aerosol of the above dispersion in sufficient quantities. The same drawback also necessitates the need for multiple loading of the material into the known device, the need for devices to control the dispersion of its size and total concentration at the outlet of the known device, etc.

The basis of the invention is the creation of a device for producing aerosol from a salt material, which would be structurally simpler, cheaper to manufacture, more productive and more economical to operate due to the separation in time of the crushing processes of the salt material and its supply to the room.

The solution to the technical problem is provided by the fact that in the device for producing an aerosol containing a housing, an air duct with an air flow inducer at the inlet, a chamber for the straw material communicated with the duct inlet and outlet, and a grinder of the straw material in the form of a crushing body with a rotation drive, the chamber is divided into two parts with a movable horizontal partition made with the possibility of vertical movement, while a crushing body is placed in the lower part of the chamber, the upper part of the chamber is connected to the air ducts one and exit openings, and the movable partition is made with at least one additional flat rib perpendicular to its surface, directed toward the crushing body and located perpendicular to the direction between the input and output openings of the chamber, while the height of the rib is selected so that it did not reach the crushing body.

The presence of a movable partition leads to the fact that the salt material can be ground to obtain the necessary salt fractions (usually 0.2-0.5 microns) and then, after raising the partition, it is put into the room. In the prototype, the salt material is simultaneously exposed to a jet of air while crushing, so the stream picks up all available fractions of the salt material and delivers it into a room in which larger particles of the salt material quickly settle on the floor. In contrast to the prototype in the proposed device, all the salt material is pre-milled to obtain particles of the required size, and then fed into the duct. The presence of a flat rib in the proposed device provides a significant increase in the rate of crushing of the salt material due to its interaction with a flat rib during the rotation of the crushing body. In addition, a flat rib located between the inlet and outlet openings of the chamber creates a turbulent air flow, which dramatically accelerates the supply of salt material from the chamber to the duct. This significantly reduces the time for the supply of aerosol from the proposed device to the treatment room.

Thus, in the proposed device due to the introduction of new features, guaranteed grinding of the salt material to sizes of 0.2-0.5 microns and the practical absence of larger fractions in the aerosol are ensured. Thus, a high efficiency of the device according to the salt material converted into the target size fraction (0.2-0.5 microns) is ensured. Compared with similar solutions, there is no need to use a particle size separator, because the proposed device does not create large fractions of the aerosol.

The lack of a device that implements the proposed invention, the need for separation of large fractions structurally significantly simplifies and reduces the cost of the proposed device compared with the prototype.

Because large fractions of the aerosol complicate the treatment, the proposed device, providing only the minimum particle size of the aerosol, increases the therapeutic properties of the aerosol.

Reducing (at times) the total time spent on grinding and filling the treatment room with an aerosol to the required concentration reduces the time it takes to fill the room with aerosol by tens of minutes, which positively affects the economy of the treatment process.

Due to the absence of large fractions of salt material, it becomes possible to significantly reduce the time for preparing the premises for the next treatment session, since it is not necessary to remove the settled salt from the floor, etc. Ensuring high efficiency of the system for the salt material converted into the target size fraction (0.2-0.5 microns) reduces the cost of expensive salt material.

Reducing the total operating time of the installation and eliminating from the design of an additional compressor for the separator of large aerosol particles at times reduces the cost of electricity.

The invention is illustrated Fig.1-5.

Figure 1 schematically shows the housing 1, the duct 2 with the inducer of the air flow 3. The chamber for the material 4 has a drive 5 and is in communication with the duct 2 with an inlet 6 and an outlet 7.

Figure 2 schematically shows a section of the chamber for the salt material 4 with a drive 5 connected to the crushing body 8. The chamber for the salt material 4 has an inlet 6 and an outlet 7. The movable partition 9 is in the lower position. An additional flat rib 10 is made perpendicularly to its lower plane. An additional flat rib 10 is located perpendicular to the direction from the inlet 6 to the outlet 7.

Figure 3 schematically shows a section of the chamber for the salt material 4. The difference between this drawing and Figure 2 is that the movable horizontal partition 9 is in the upper position.

Figure 4 schematically shows a movable horizontal partition 9 with an additional flat rib 10.

Figure 5 schematically shows an embodiment of a movable horizontal partition 9 with an additional flat rib 10 and a second, perpendicular to the plane of the additional flat rib 10, rib 11.

A device for producing an aerosol contains a housing 1 with an air duct 2, an air flow inducer 3. Air duct 2 is connected to the inlet 6 and outlet 7 of the chamber for the salt material 4. The chamber for the salt material 4 has a drive 5 with a crushing body 8. In the chamber for the salt material 4 under the inlet 6 and the outlet 7 openings have a movable partition 9 with one additional flat rib 10 attached to the bottom of the movable partition 9 and made perpendicular to the surface of the movable partition 9. Additional flat rib 10 along placed perpendicular to the direction from the inlet 6 to the outlet 7 of the chamber for the salt material 4. The height of the additional flat ribs 10 is selected so that it does not reach the crushing body 8.

The air flow inducer 3 can be placed in the housing 1 and connected to the duct 2 both from the inlet 6 of the chamber for the salt material 4 and from its outlet 7.

The device operates as follows.

At the beginning of the work, the movable partition 9 is in the lower position. The process of processing the material is carried out by rotating the crushing body 8 with the drive 5. After grinding the material, raise the movable partition 9 to a position above the inlet 6 and the outlet 7 without stopping the rotation of the crushing body 8 and turn on the inducer of air flow 3. The air flow passes from the inlet 6 to the outlet 7 under the raised movable partition 9 and bends around an additional flat rib 10. Moreover, it interacts with the already ground salt material, throwing it through the outlet TIFA 7 and the duct 2 to be filled into the aerosol treatment room.

Claims (1)

A device for producing an aerosol containing a housing, an air duct with an inducer of air flow at the inlet, a chamber for a salt material communicated with an air inlet and an outlet, and a grinder of a material in the form of a crushing body with a rotation drive, characterized in that the chamber is divided into two horizontal movable parts a partition made with the possibility of vertical movement, while in the lower part of the chamber a crushing body is placed, the upper part of the chamber is inlet and outlet openings to the air duct, and the movable partition is made with at least one additional flat rib perpendicular to its surface, directed toward the crushing body and located perpendicular to the direction between the input and output openings of the chamber, while the height of the rib is chosen so that it does not reach the crushing body.

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