KR102213155B1 - Emergency Breathing Apparatus With Air Purification Function - Google Patents

Abstract

Disclosed contents relate to an emergency breathing device with an air purification function, which comprises: a main body including an air inflow hole, an air outflow hole, and a main channel having an upstream side communicating with the air inflow hole and a downstream side communicating with the air outflow hole, so that air can flow in the main channel; at least one air purification filter connected to the main channel in the main body and configured to purify the flowing air which passes through the main channel; a first respirator passage connected to one side of the main channel; a second respirator passage connected to the other side of the main channel; an exhalation air pouch connected to the first respirator passage; an inhalation air pouch connected to the second respirator passage; at least one facial oxygen mask connected to the exhalation air pouch and the inhalation air pouch, and configured to accommodate a respirator formed when a user inhales or exhales; switching valves controlling exhalation and inhalation; an oxygen supply unit configured to selectively provide oxygen to the second respirator passage; a CO_2 filter canister; and a control unit. The emergency breathing device of the present invention performs an air purification function for purifying harmful gas in the air at normal times, and is switched to an emergency state when a fire occurs or a concentration of CO_2 is determined to be at a dangerous level so as to keep safety against disaster.

Description

Emergency Breathing Apparatus With Air Purification Function{Emergency Breathing Apparatus With Air Purification Function}

The disclosed content relates to an emergency breathing apparatus equipped with an air cleaning function, and more specifically, it performs an air cleaning function that purifies harmful gases in the air at normal times, and a fire occurs due to disaster safety or the CO2 concentration is reduced to a dangerous level. When it is judged, it relates to an emergency breathing apparatus equipped with an improved air cleaning function to prevent suffocation accidents by switching to an emergency state and to maintain breathing safely.

Unless otherwise indicated herein, the content described in this section is not prior art to the claims of this application, and inclusion in this section is not admitted to be prior art.

Natural disasters such as earthquakes, fine dust, fire, and social disasters such as automobile fumes are polluting the environment, causing a lot of obstacles to human breathing, and even indoor air is severely polluted, regardless of gender, regardless of gender, It is an increasing trend.

Since large office or residential buildings such as buildings or apartments do not have an emergency respirator separately for indoor fire, it is difficult to safely evacuate while breathing stably in case of fire.

In the event of a fire in a building or a disaster such as the release of harmful gases, it is very important that people in the building inhale toxic substances and breathe stably and safely evacuate without suffering a suffocation accident.

In addition to the normal air purification function, research and development on emergency breathing devices that can breathe toxic gases continuously and safely, especially when it is judged as an emergency situation such as a fire, has been continuously conducted.

As a prior art with an air purification function, it has a carbon dioxide reduction function designed and manufactured to efficiently remove carbon dioxide, dust and foreign matter by spraying it into the air by making carbon dioxide and lithium hydroxide or soda lime with excellent reaction efficiency into an aqueous solution. There is an air purifier (Korean Patent Publication No. 10-0943537, announced on February 22, 2010).

However, the above-described prior art is not only mechanically complicated, but also removes fine dust or removes fine dust because it constitutes elements that make the aqueous solution state in advance by mixing lithium hydroxide or soda lime, and then spray the aqueous solution into the container filled with polling. There is a problem that cannot be purified.

As another prior art, Korean Utility Model No. 20-0338192 has disclosed an emergency oxygen respirator.This technology can inhale oxygen until an emergency situation such as oxygen deficiency or toxic gas suffocation occurs until the victim reaches a safe situation. Supply high concentration of oxygen

This prior art is limited in the event of an emergency situation and can provide oxygen to the victim, and there is a problem in that it cannot perform the function of purifying fine dust in the air at all.

Prior Art Document 1 Korean Patent Publication No. 10-0943537 (announced on February 22, 2010) Prior Art Document 2 Korean Utility Model Registration No. 20-0338192 (announced on January 13, 2004)

The disclosed content is to provide an emergency breathing apparatus having an air cleaning function capable of maintaining normal breathing in case of an emergency situation such as a fire or a disaster, which performs the function of an indoor air purifier in normal times.

In addition, it is not limited to the technical problems as described above, and it is obvious that another technical problem may be derived from the following description.

According to an embodiment of the disclosure, an air inlet, an air outlet, and an upstream side are in communication with the air inlet and a downstream side is in communication with the air outlet so as to allow air to flow therein;

At least one air cleaning filter connected to the main passage in the main body and purifying the flowing air passing through the main passage;

A first respiratory passage connected to one side of the main passage;

A second respiratory passage connected to the other side of the main passage;

An exhalation air bag connected to the first respiratory tract;

An inhalation air bag connected to the second respiratory tract;

At least one facial oxygen mask connected to the inhalation air bag and the exhalation air bag and accommodating a respirator formed when the user inhales and exhales;

A switching valve for exhalation control installed on one side of the first respiratory passage and selectively opening and closing the first respiratory passage;

A switching valve for inhalation control installed on one side of the second respiratory passage and selectively opening and closing the second respiratory passage;

An oxygen supply unit provided with an oxygen injection solenoid valve, connected to one side of the second respiratory passage, and selectively providing oxygen filled with a preset pressure inside the body to the second respiratory passage;

It is installed between the air cleaning filter and the second breathing passage so that the flowing air passes, and a CO2 adsorbent is filled therein, and at least a part of the adsorbent reacts with CO2 contained in the flowing air, CO2 filter canister for filtering CO2;

A dust detection sensor installed adjacent to the inlet side of the air cleaning filter;

A CO2 sensor installed adjacent to the outlet side of the CO2 filter canister;

An air circulation pump having a motor rotating by a power source, mounted on one side of the main flow path, and selectively generating a preset flow rate in the main flow path;

It is electrically connected to the circulation pump, CO2 sensor, dust detection sensor, switching valve for inhalation control, switching valve for exhalation control, and electronic valve for oxygen injection, and when it is determined as an emergency situation according to a preset algorithm, the first and second A control unit for controlling the inhalation control switching valve and the exhalation control switching valve so that the respiratory passage is opened; And

It is provided in the control unit, and provides an emergency breathing apparatus having an air cleaning function configured to include a communication unit for transmitting signal information on the emergency situation to an external control station.

According to another technical feature, there is provided an emergency breathing apparatus having an air cleaning function configured to further include an inhalation air inflow prevention unit and an exhalation air inflow prevention unit.

According to another technical feature, an internal transparent part is configured on one side of the CO2 filter canister, and the internal transparent part provides an emergency breathing apparatus having an air cleaning function including a reflector for providing color change of the CO2 adsorbent to the outside. .

According to another technical feature, an oxygen sensor that detects an oxygen filling pressure and provides it to the control unit provides an emergency breathing apparatus having an air cleaning function configured in an oxygen supply unit.

According to the disclosed embodiment, air from which fine dust has been removed by the air purification function can be used as a respirator in normal times, and in case of an emergency such as a fire or disaster, evacuation safely by using oxygen and a purified rebreather through a facial oxygen mask. And it has the advantage of being able to evacuate.

According to the disclosed embodiment, when an emergency occurs, oxygen and rebreathing air can be safely supplied to people wearing facial oxygen masks until the arrival of the cohort, and oxygen is charged by communicating with an external control station or rescue personnel through a wireless communication unit. It has the advantage of being able to check the state, the remaining amount of available oxygen, and the state of the power supply.

The effects of the present embodiments are not limited to the effects mentioned above, and other effects that are not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a schematic diagram showing the configuration of an emergency breathing apparatus having an air cleaning function according to an embodiment of the disclosed content;
2 is a schematic diagram showing the appearance of the main body of the emergency breathing apparatus according to an embodiment of the disclosed content;
3 is a schematic diagram showing a state inspection for a carbon dioxide adsorbent according to an embodiment of the disclosed content;
Figure 4a is a schematic diagram showing the air purification flow of the emergency breathing apparatus in a normal time according to an embodiment of the disclosed content;
Figure 4b is a schematic diagram showing the flow of oxygen and rebreather in an emergency breathing apparatus in an emergency situation according to an embodiment of the disclosed content;
5 is a schematic diagram showing an operating state of a backflow prevention pad of an air bag according to an embodiment of the disclosed subject matter;
6 is a block diagram schematically showing the configuration of a control unit according to an embodiment of the disclosed content;
7A and 7B are flow charts showing an emergency situation and a normal control flow by a preset algorithm according to an embodiment of the disclosed subject matter;

Advantages and features of the present invention, and a method of achieving them will become apparent with reference to embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, only the present embodiments are intended to complete the disclosure of the present invention, and the general knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have it, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same elements throughout the specification.

In describing embodiments of the present invention, if it is determined that a detailed description of a known function or configuration may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted. In addition, terms to be described later are terms defined in consideration of functions in an embodiment of the present invention, which may vary according to the intention or custom of users or operators. Therefore, the definition should be made based on the contents throughout this specification.

Hereinafter, a preferred embodiment of an improved air purification apparatus will be described with reference to the accompanying drawings.

1 is a schematic diagram showing the configuration of an emergency breathing apparatus having an air cleaning function according to an embodiment of the present invention.

Referring to FIG. 1, an air purification apparatus including a carbon dioxide removal technology according to an embodiment of the present invention,

The air inlet (1), the air outlet (2), and the upstream side communicate with the air inlet (1), and the downstream side communicates with the air outlet (2), and includes a main passage (3) formed to allow air to flow therein. The main body 100; At least one air cleaning filter (4) connected to the main flow passage (3) in the main body (100) and purifying the flowing air passing through the main flow passage (3); A first respiratory passage (5) connected to one side of the main passage (3);

A second respiratory passage 6 connected to the other side of the main passage 3; An exhalation air bag 7 connected to the first respiratory passage 5; An inhalation air bag (8) connected to the second respiratory passage (5); At least one facial oxygen mask (9) connected to the inhalation air bag (7) and the exhalation air bag (8) and accommodating a respirator formed when the user (H) inhales and exhales; A switching valve 21 for exhalation control installed on one side of the first respiratory passage 5 and selectively opening and closing the first respiratory passage 5; A switching valve 22 for inhalation control installed on one side of the second respiratory passage 6 and selectively opening and closing the second respiratory passage 6; It has an oxygen injection solenoid valve 31, which is connected to one side of the second respiratory passage 6, and selectively provides oxygen filled with a preset pressure inside the body 32 to the second respiratory passage. Oxygen supply unit 30; It is installed between the air cleaning filter (4) and the second respiratory passage (6) so that the flowing air passes, and a CO2 adsorbent is filled therein, and at least a part of the adsorbent reacts with CO2 contained in the flowing air. It is configured to include a CO2 filter canister 10 for filtering the CO2 related to the flowing air.

In addition, the emergency breathing apparatus having the disclosed air cleaning function includes: a dust detection sensor 23 installed adjacent to the inlet side of the air cleaning filter 4; A CO2 sensor 24 installed adjacent to the outlet side of the CO2 filter canister 10; An air circulation pump 12 provided with a motor (not shown) rotating by a power source, mounted on one side of the main flow path 3, and selectively generating a preset flow rate in the main flow path 3; It is electrically connected to the circulation pump 12 and the CO2 sensor 24, the dust detection sensor 23, the inhalation control switching valve 22, the exhalation control switching valve 21 and the oxygen injection electromagnetic valve 31, When it is determined as an emergency situation according to a preset algorithm, the control unit 40 for controlling the inhalation control switching valve 21 and the exhalation control switching valve 22 so that the first and second respiratory passages 5 and 6 are opened. ); And a communication unit 41 provided in the control unit 40 and transmitting signal information related to the emergency situation to the external control station 50.

2 is a schematic diagram showing the appearance of a main body of an emergency breathing apparatus according to an embodiment of the disclosed subject matter.

Referring to FIG. 2, the main body 100 includes an operation switch 37, a selection switch 38, a wireless communication switch 39 capable of communicating with an external control station in case of an emergency, a timer, and an oxygen level indicator 35, 36) It is configured to include a switch unit including, etc., for convenience of movement, the lower portion of the main body 100 may be configured to further include wheels for movement (not shown).

1 and 2, the air circulation pump 12 has a fan motor driving speed controlled by a controller 4. The drive speed is periodically or intermittently controlled to increase, decrease, and stop by a preset algorithm during normal and emergency events.

The facial oxygen mask (9) is connected to the exhalation bag (7) and the inhalation bag (8) through connection hoses (11a, 11b), respectively, and is discharged from the main body (100) in case of an emergency to allow the victim to breathe mask Can be used as

It should be understood that the dust detection sensor 23 is configured as a sensor according to the IR method or the NDIR method to measure not only fine dust but also large dust and ultrafine dust having a very small size.

In addition, the CO2 sensor 24 may be configured as an infrared (IR) type sensor or an NDIR (non-dispersive infrared) type sensor.

Preferably, the CO2 sensor of the NDIR method has good precision because it measures several wavelengths of light, and is suitable for measuring pressure, moisture, dust, etc., and the measured signal values are transmitted to the controller through a sensor interface. Provided in (40).

As an embodiment, the air cleaning filter 4 is a fine dust filter for filtering foreign substances such as fine dust and ultra fine dust in the introduced air, for example, a filter formed of a non-woven fabric or a chemical using activated carbon of chemical reaction. You can configure the filter.

More preferably, a high efficiency particulate air (HEPA) filter having a dust collection efficiency of 99.7% or more can be used when 0.3um particles are passed once, and dusts of 0.15um or more such as fine dust, viruses, and mold can be used. It is appropriate to use an ultra-low particulate air (ULPA) filter that filters up to 99.9995%.

The CO2 filter canister 10 may include a carbon dioxide filter that filters carbon dioxide from air introduced therein. In general, an adsorbent capable of reacting with carbon dioxide and adsorbing carbon dioxide may be incorporated.

The adsorbent is composed of a soda-lime-based material, and it is preferable to fill in a predetermined particle or granular state such that the surface area increases when the flowing air or purified flowing air is passed.

3 is a schematic diagram illustrating a state inspection of a carbon dioxide (CO2) adsorbent according to an embodiment of the disclosed subject matter.

The emergency breathing apparatus having an air cleaning function according to the present invention includes an internal transparent part 40 on one side of the CO2 filter canister 10, and the internal transparent part 40 is formed of the CO2 adsorbent (S). It is configured to include a reflector 41 to provide a color change to the outside.

It should be understood that the entrance of the inner transparent part 40 may include a magnifying glass, a lens, and a prism, and a series of lens-reflector combinations may be further configured toward the reflector 41 in consideration of magnification. .

When the state of the adsorbent (soda lime) reacts to carbon dioxide (CO2) by the reflector 41 of the internal see-through unit 40 and changes to brown color during the adsorption process, it can be visually inspected and recognized from the outside.

1 and 5, the emergency breathing apparatus having an air cleaning function according to the present invention is configured to further include the inhalation air inflow prevention part 13 and the exhalation air inflow prevention part 14. Preferably, the inhalation air inflow prevention part 13 is installed adjacent to the discharge port 7a of the exhalation air bag 7, and the exhalation air inflow prevention part 14 is a discharge port of the inhalation air bag 8 It is installed adjacent to (8a).

The valves (21, 22) are configured to include a solenoid control valve that selectively opens and closes the first respiratory passage (5) and the second respiratory passage (6) by solenoid operation, and the control unit 40 It is electrically connected.

According to an embodiment, the valves 21 and 22 rotate on the hinges 21a and 22a and selectively open or close the inside of the first respiratory passage 5 and the second respiratory passage 6. It can also be configured.

The inhalation air inflow prevention part 13 and the exhalation air inflow prevention part 14 are preferably composed of a respirator that can flow back to each of the discharge ports 7a and 8a and a pad for preventing air flow, and the shaft 14a ) Can be supported by

The oxygen supply unit 30 includes an oxygen pressure reducing unit 34 that relieves the pressure charged in the body 32, and the inhalation bag 8 or inhalation by a pneumatic connection means including a hose. It communicates with the second respiratory tract 6 communicating with the pocket.

In addition, the oxygen supply unit 30 is configured to further include an oxygen sensor 33 that detects an oxygen filling pressure and provides it to the control unit 40.

FIG. 4A is a schematic diagram showing the flow of air purification in an emergency breathing apparatus according to an embodiment of the disclosed subject matter, and FIG. 4B is a schematic diagram showing the flow of oxygen and rebreather in an emergency breathing apparatus in an emergency situation according to an embodiment of the disclosed subject matter .

4A and 4B, the switching valve 21 for exhalation control and the switching valve 22 for inhalation control are operated to close the first respiratory passage 5 and the second respiratory passage 6, respectively, so that external air is shown. It is circulated in the direction of the arrow indicated in, and fine dust and carbon dioxide may be adsorbed during this process.

In addition, in the event of an emergency, the exhalation control switching valve 21 and the inhalation control switching valve 22 are switched to open the first respiratory passage 5 and the second respiratory passage 6, respectively, and at this time, the flow of external air Alternatively, the circulation is stopped, and the acid pain may be provided to the face mask 9 by the oxygen supply unit 30.

The exhalation of the victim passes through the inside of the CO2 filter canister through the first respiratory passage (5), and in this process, the carbon dioxide contained in the exhalation reacts with the adsorbent and is absorbed, providing a safe and re-supplied respiratory system. do.

In this process, the high-pressure oxygen stored in the oxygen tank 32 is controlled to a low pressure in the oxygen decompression means 34 and delivered to the oxygen injection solenoid valve 31 through an oxygen supply pipe or a hose member, and the oxygen injection solenoid valve 31 When the operation of) starts, oxygen is supplied into the inhaled air bag 8.

According to an embodiment, the switching valves 21 and 22 are automatically switched by the control unit 40 when they are to be used as fire detection signals or emergency respirators.

6 to 7B, in the emergency breathing apparatus having an air cleaning function according to the present invention, the control unit 40 checks the state of charge of oxygen, checks the remaining amount of available oxygen, the state of charge of the rechargeable battery, and Information of the located victim or victim may be provided to an external control station, and communication and emergency situations with external control stations 50 and rescuers through the wireless communication unit 41 can be remotely confirmed.

According to an embodiment, the control unit 40 receives the pressure signal of the oxygen tank 32, determines whether the oxygen charging voltage in the oxygen tank 32 is greater than 10%, and transmits a warning signal when it is less than the reference value. And, the pressure sensor checks the oxygen consumption and remaining amount per minute of the oxygen tank 32 and transmits an alarm signal.

If the oxygen charging force is greater than 10%, data analysis and judgment according to a preset algorithm based on the signal information data from the oxygen sensor 33, for example, determine whether the inhaled oxygen amount is maintained at 20% to 25%, and this range If it is out of, open and operate the oxygen injection solenoid valve of oxygen supply.

On the other hand, the control unit 40 receives the carbon dioxide concentration at the inlet portion and the outlet portion concentration data of the CO2 filter canister, determines whether the carbon dioxide removal rate is maintained at 60% or more, and performs a circulation operation of air to be within a preset range. Control. If the carbon dioxide removal rate is less than 60%, a warning signal is sent out.

In this process, the control unit 40 performs a scan at a speed of 20 mm/sec, monitors the normal operating state of the carbon dioxide filter configuration, and prevents the evacuee from absorbing excessive carbon dioxide.

The disclosed contents are only examples, and various changes can be made by those of ordinary skill in the art without departing from the gist of the claims claimed in the claims, so the scope of protection of the disclosed contents is It is not limited to the embodiment.

100: main body
1: Air inlet
2: Air outlet
4: Air cleaning filter
5: first respiratory tract
6: second respiratory tract
7: Exhalation air bag
8: inhalation air bag
10: CO2 filter canister
23, 24: Fine dust and CO2 detection sensor
30: oxygen supply unit
40: control unit
41: Ministry of Wireless Communication

Claims (5)

A main body including an air inlet, an air outlet and an upstream side communicating with the air inlet and a downstream side communicating with the air outlet to allow air to flow therein;
At least one air cleaning filter connected to the main passage in the main body and purifying the flowing air passing through the main passage;
A first respiratory passage connected to one side of the main passage;
A second respiratory passage connected to the other side of the main passage;
An exhalation air bag connected to the first respiratory tract;
An inhalation air bag connected to the second respiratory tract;
At least one facial oxygen mask connected to the inhalation air bag and the exhalation air bag and accommodating a respirator formed when the user inhales and exhales;
A switching valve for exhalation control installed on one side of the first respiratory passage and selectively opening and closing the first respiratory passage;
A switching valve for inhalation control installed on one side of the second respiratory passage and selectively opening and closing the second respiratory passage;
An oxygen supply unit provided with an oxygen injection solenoid valve, connected to one side of the second respiratory passage, and selectively providing oxygen filled with a preset pressure inside the body to the second respiratory passage;
It is installed between the air cleaning filter and the second breathing passage so that the flowing air passes, a CO2 adsorbent is filled therein, and at least a portion of the CO2 adsorbent reacts with CO2 contained in the flowing air to the flowing air. A CO2 filter canister for filtering CO2 about;
A dust detection sensor installed adjacent to the inlet side of the air cleaning filter;
A CO2 sensor installed adjacent to the outlet side of the CO2 filter canister;
An air circulation pump having a motor rotating by a power source, mounted on one side of the main channel, and selectively generating a predetermined flow rate in the main channel;
It is electrically connected to the air circulation pump, CO2 sensor, dust detection sensor, inhalation control switching valve, exhalation control switching valve, and oxygen injection solenoid valve, and when it is determined as an emergency situation according to a preset algorithm, the first and second 2 a control unit for controlling the inhalation control switching valve and the exhalation control switching valve so that the respiratory passage is opened; And
An emergency breathing apparatus having an air cleaning function, which is provided in the control unit and includes a communication unit for transmitting signal information regarding the emergency situation to an external control station.
The method according to claim 1,
An emergency breathing apparatus with an air cleaning function, characterized in that it further comprises an inhaled air inflow prevention part and an exhaled air inflow prevention part.
The method according to claim 1,
An emergency breathing apparatus with an air cleaning function, characterized in that an inner transparent part is configured on one side of the CO2 filter canister, and the inner transparent part includes a reflector for providing a color change of the CO2 adsorbent to the outside.
The method according to claim 2,
The emergency breathing apparatus having an air cleaning function, characterized in that the valves are configured to include a solenoid control valve.
The method according to claim 1,
The oxygen supply unit is an emergency breathing apparatus having an air cleaning function, characterized in that it further comprises an oxygen sensor that detects the oxygen filling pressure and provides it to the control unit.

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