RU177474U1 - Individual air purification device for people in urban areas - Google Patents

Abstract

The utility model relates to devices for protecting human respiratory organs from dust and toxic substances in the surrounding atmosphere by supplying purified air to his breathing zone. An individual air purification device for a person in an urban environment, comprising an air duct 1 in communication with a source supplying air at a pressure higher than atmospheric to create an air flow in front of the person’s external airways, an air purification filter 6 and a control unit 2. New, according to the patent model, is the discharge from the duct 1 through the tee 3 of two air ducts 4, the ends of which are connected to the external respiratory tract of a person from different sides of the face, at the ends of these air ducts 4 are made vertical air nozzles 5 directed towards each other and at an angle α = 60-160 ° to their longitudinal axes. The proposed device is intended for individual protection of the human respiratory system from dust and other harmful substances contained in the polluted atmosphere of industrial cities. When using this device, a person can lead an active lifestyle in adverse urban conditions: walking, working and playing sports. This device is convenient to use, economical and can be used for a long time. The device will be widely used for residents of large industrial cities with a polluted atmosphere. 2 s.p. f-ly, 3 ill.

Description

The utility model relates to devices for protecting human respiratory organs from dust and toxic substances in the surrounding atmosphere by supplying purified air to his breathing zone.

The Wynd portable air purifier is known that directs a stream of purified air into a person’s face (Internet, website: https://movdom.media/life-in-house/portativnyy-ochistitel-vozduha-wynd-spasenie-dlya-zhiteley-zagryaznennyh-gorodov -2156). The cleaner is a small container, on the sides of which there are hundreds of small holes through which the cleaned air enters the container. Air goes straight to the medical filter to get rid of solid particles. This filter is coated with a very thin layer of silver that kills bacteria. A small sensor is installed at the bottom of the purifier, which monitors the quality of the air being cleaned and monitors the operation of the filter. This device can clean the air from pollution of cars, power plants. This air purifier is designed to protect the human respiratory system for residents of polluted cities.

The disadvantage of this Wynd air purifier is the inconvenience of its operation. The Wynd air purifier must always be held in the hands of a person and in this case the guide nozzle must be directed to its external airways.

A device is known for supplying air or a mixture of gases to the respiratory tract, mounted in a headgear and connected to a flexible hose with a pumping system (SU No. 93305 A1, IPC A62B 7/12, 1950). The device is made in the form of a hollow ring with holes and is equipped with a tee for connection with a hose. The holes in the hollow ring are directed down and along the face. Air or a mixture of gases under pressure flows through a hose into a tube, exits through openings, creating an air curtain and protects a person from the flow of hot air or harmful gases.

The disadvantage of this device is the need for continuous connection of the present device through a hose to the discharge air system. The device is inconvenient during operation. A worker with a device on his head to bring air or a mixture of gases to the respiratory tract is limited in his movement by the length of the air hose.

Known air respirator containing an air duct in communication with a source supplying air at a pressure above atmospheric for the formation of an air stream in front of the external respiratory tract of a person, a filter for air purification and frame (RU No. 2125474 C1, IPC A62B 7/12, 1996). The respirator is equipped with an input locking device with channels for exhausting air from it and an output nozzle with output channels communicating with the channels for exhausting air through connecting channels, while the output channels have a given geometric shape and size and form a closed loop around the perimeter in cross section.

The disadvantage of this air respirator is the need for its constant connection through the air hose to the discharge air system. The device is inconvenient during operation. A worker with a device for supplying air to the respiratory tract is limited in its movement by the length of the air hose.

The closest in technical essence is a breathing apparatus for respiratory protection, containing an air duct connected to a source supplying air under a pressure higher than atmospheric to create an air flow in front of the external respiratory tract of a person, a filter for air purification and a frame for maintaining the outlet nozzle (DE No. 2135928 IPC А62В 18/003, А62В 7/12, 1971).

The disadvantage of this breathing apparatus for supplying air to the respiratory tract of a person is the need for its attachment to the headdress (helmet) of the worker. The breathing apparatus only works when it is connected through a hose to the charge air system. The device is inconvenient during operation, it significantly blocks the bottom view of the worker. The worker with this breathing apparatus is limited in its movement by the length of the air hose.

The technical task of the utility model is the convenience, efficiency and mobility of using an individual air purification device for a person in an urban environment.

The technical result is achieved by the fact that an individual air purification device for a person in an urban environment, comprising an air duct connected to a source supplying air at a pressure higher than atmospheric to generate an air flow in front of the person’s external airways, an air purification filter and a control unit. According to the utility model, a new one is the removal of two air ducts from the duct through the tee, the ends of which are connected to the external respiratory tract of a person from different sides of the face, at the ends of these air ducts there are vertical air nozzles directed towards each other and at an angle α = 90-150 ° to their longitudinal axes.

The air ducts in the middle part are equipped with earhooks. The control unit is equipped with a regulator for the supply of purified air to the duct.

In FIG. 1 shows a connection diagram of an individual air purification device for a person in an urban environment, view in front; in FIG. 2 - the same, view in profile; in FIG. 3 - the same, top view.

An individual air purification device for a person in an urban environment contains an air duct 1, which is connected at one end to a control unit 2, and the other end is connected to a tee 3, from which two air ducts are allotted 4. These air ducts 4 are connected to the external airways of a person from different sides of the face , at the ends of these air ducts 4 there are vertical air nozzles 5 directed towards each other and at an angle α = 90-150 ° to their longitudinal axes. In the control unit 2 there is a filter 6 for air purification, a fan 7, a battery 8 and a regulator 9 for supplying purified air to the air duct 1. The air ducts 4 in the middle part are equipped with earhooks 10.

An individual air purification device for a person in an urban environment works as follows.

The contaminated city air from the outside is sucked up by the fan 7 into the control unit 2, where it passes through the air filter 6 and is cleaned of dust and other harmful substances contained in the surrounding atmosphere. The fan 7 is powered by a battery 8, which is also located in the control unit 2. The purified air under pressure above atmospheric is supplied to the duct 1, then it is fed through two tee vertical air flows to the external respiratory air through tee 3, air ducts 4 and vertical air nozzles 5 the ways of man from different sides of the face. These two flat air flows are directed towards each other at an angle α = 90-150 ° to their longitudinal axes. When two flat vertical air flows collide in front of the person’s external airways, a high pressure zone appears, a kind of air screen that prevents the entry of contaminated city air to the person’s external airways.

The angle of inclination of vertical flat air nozzles directed to each other and at an angle α = 90-150 ° to their longitudinal axes is individually regulated and is different for each person. In this case, an air screen from purified air will appear immediately in front of the person’s external respiratory tract and its protection against dusty city air will be most effective.

At an angle of inclination of vertical plane air nozzles directed to each other and at an angle of more than α = 150 ° to their longitudinal axes, the air screen cannot be installed in front of the person’s external airways, as air jets will be directed to his side of the face. In this case, dusty city air will flow freely to the respiratory tract of a person.

At an angle of inclination of vertical plane air nozzles directed to each other and at an angle less than α = 90 ° to their longitudinal axes, the air screen will be installed far in front of the person, and dusty city air, bypassing the air screen from the purified air, will flow freely to the respiratory tract person.

Air is a transparent gaseous substance, so the air flow does not reduce the view of a person, and the vertical air nozzles 5 located on different sides of the person’s face also do not interfere with his view. When the vertical air nozzles 5 are located at the tips of the lips of a person, the operation of the proposed air purification device will be the most efficient and economical.

The earhooks 10 securely hold the air ducts 4 in the required position, which allows the vertical air nozzles 5 to be in a constant position in front of the external airways of the person. At the same time, the air screen of the high pressure zone will reliably protect a person from dusty city air. By means of the regulator 9, it is possible to change the volume of purified air supplied to the air duct 1 and, therefore, to the air nozzles 5. This device effectively protects the human respiratory organs from dusty city air, has a simple design and small size and weight.

The proposed device is intended for individual protection of the human respiratory system from dust and harmful substances contained in the polluted atmosphere of industrial cities. When using this device, a person can lead an active lifestyle in adverse urban conditions: walking, working and playing sports. This device is convenient to use, economical and can be used for a long time. The device will be widely used for residents of large industrial cities with a polluted atmosphere.

Claims (3)

1. An individual air purification device for a person in an urban environment, comprising an air duct in communication with a source supplying air at a pressure higher than atmospheric to generate an air flow in front of the person’s external airways, an air purification filter and a control unit, characterized in that it is the tee is allocated two air ducts, the ends of which are made with the possibility of bringing to the external respiratory tract of a person from different sides of the face, vertices are made at the ends of these air ducts cial air nozzles directed towards each other and at an angle α = 90-150 ° to their longitudinal axes. 2. The device according to p. 1, characterized in that the air ducts in the middle part are equipped with earhooks. 3. The device according to claim 1, characterized in that the control unit is equipped with a regulator for supplying purified air to the duct.

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