KR102258265B1 - Clean air supplying apparatus for breathing air compressor - Google Patents

Abstract

The present invention relates to an apparatus which supplies cleaned air after killing the COVID-19 and various viruses and bacteria as well as fine dust included in the air, in an air charger for breathing which supplies air for breathing to firefighters, underwater sports players, workers doing underwater work, and those people who need air for other general industrial or medical purposes. The present invention provides a clean air supply apparatus for an air charger for breathing of a new type, which cleans the air supplied to the air charger for breathing by successively placing a first filter apparatus of a HEPA filter rating for removing dust and smell in the air, a UV lamp apparatus which secondarily kills the viruses in the air, and a second filter apparatus of an ULPA filter rating for removing ultrafine dust and smell in the air thirdly, on an air line. The present invention is able to remove not only fine dust in the air but also specifically kill the COVID-19 and various other viruses and bacterial, supply fresh, sterilized air to a user, detect the condition of the air, notify the air condition to the user by marks and sounds, check the condition of the filters, notify the cycle for replacing the filters, efficiently maintain the apparatus, and improve efficiency in the general operation of the apparatus.

Description

Clean air supplying apparatus for breathing air compressor

The present invention relates to a device for supplying clean air of a breathing air charger, and more particularly, to supply air for breathing to firefighters, workers doing water sports and underwater work, and people who need air for general industrial or medical purposes. It relates to a device that supplies cleanly purified air after killing corona 19, various viruses and bacteria as well as fine dust contained in the air in a breathing air charger.

In general, firefighters who rescue life in the event of a fire, people who enjoy water sports or work in water, people who need breathing air for medical purposes, etc., breathe using an air tank filled with breathing air. It is done.

If the remaining amount of these breathing air tanks decreases after use, they are filled with new breathing air and used, and if left unused for about 3 to 4 months even if they are not used, contamination of the air inside the breathing air tank is prevented. In order to prevent it, the residual air inside is discharged, and then new breathing air is charged and used.

The current breathing air tank filled with new breathing air is a product that uses a breathing air charger to compress general air (about 20% oxygen and about 80% nitrogen) at high pressure, then put it in a container and distribute it. There are products that are distributed on the market by separately containing oxygen and nitrogen in a container in a liquid state.

Breathing air chargers that usually produce breathing air use a multi-stage compression type high pressure compressor to inhale air in the atmosphere, and then adjust the concentration of oxygen or nitrogen at a ratio of 20 to 90% to create breathing air. It is operated by supplying it to users or places of use.

In addition, the breathing air charger that supplies breathing air to the final use, such as a breathing air tank, is equipped with an oil-water separator that collects foreign substances such as moisture and oil contained in the air. This filtered clean air is supplied to the end use.

On the other hand, people who use the breathing air provided by the breathing air charger, for example, firefighters who perform rescue work in case of fire, people who enjoy water sports or workers who work in water, need breathing air for medical purposes. For those who do, thorough preparations are needed to provide clean, purified air that is not contaminated with various bacteria.

Coronavirus Infectious Disease-19, a pandemic disease recently developed in Wuhan City, Hubei Province, China, is also known as'Wuhan Pneumonia','New Coronavirus Infection', and'Corona 19', and is a virus caused by a strain of the coronavirus. It is a sexual disease.

Initially known only as a respiratory infectious disease of unknown cause, it is believed to be a new type of coronavirus such as SARS (severe acute respiratory syndrome), which was prevalent in 2003, and MERS (MERS, Middle East Respiratory Syndrome), which was prevalent in 2012. It turned out on January 7th.

The World Health Organization (WHO) declared the'International Public Health Emergency (PHEIC)' on January 30 as the coronavirus infection-19 spread to many countries around the world.

Accordingly, prevention is essential because there is no direct treatment method for coronavirus infection-19, and the Centers for Disease Control and Prevention is required to wash and dry hands frequently for at least 30 seconds in running water before and after going out based on the characteristics of this disease that is transmitted through the respiratory tract. It was recommended to wear a hygienic mask when going out and to prevent transmission through breathing.

In light of the above circumstances, it is necessary to take active interest and action to prevent infection from viruses or bacteria, as well as to actively respond to infection prevention such as removing the infectious agents contained in the breathing air at the source. It's a situation.

Registered Patent Publication No. 10-1043201 Unexamined Patent Publication No. 10-2000-0036267 Unexamined Patent Publication No. 10-2008-0007076 Unexamined Patent Publication No. 10-2019-0128034 Unexamined Patent Publication No. 10-2019-0138431

Accordingly, the present invention has been devised in consideration of the above points, as a primary filter device of a HEPA filter grade that firstly removes dust and odors from the air on an air line, a UV lamp device that sterilizes viruses in the air secondarily, Thirdly, by implementing a new type of clean air supply device that purifies the air supplied to the breathing air charger by sequentially arranging the secondary filter devices of the Ulpa filter class that purify ultra-fine dust and odors in the air, fine dust in the air Of course, in particular, it is aimed at providing a clean air supply device for a breathing air charger capable of supplying fresh and sterilized air to a place of use by eradicating Corona 19, various viruses, and bacteria.

In addition, another object of the present invention is to detect the state of the air and notify the user with a display and sound, and to check the filter status to know the filter replacement cycle, as well as efficient maintenance of the device, as well as the overall efficiency of device operation. It is to provide a clean air supply device of a breathing air charger that can improve.

In order to achieve the above object, the clean air supply device of the breathing air charger provided by the present invention has the following characteristics.

The clean air supply device of the breathing air charger includes a case that has an air inlet and an air outlet and is divided into three spaces: a first purification chamber, a sterilization chamber, and a second purification chamber, and the interior of the first purification chamber. Hepa filter grade primary filter device installed, UV lamp device installed inside the sterilization chamber, Ulpa filter grade secondary filter device installed inside the second purification room, and the air outlet and breathing A floor sensor installed in the air supply line between the air chargers for sensing the flow of air and a solenoid valve that opens and closes the flow of air, and the oxygen concentration, carbon monoxide concentration, and carbon dioxide concentration in the air installed inside the second purification chamber , A sensor device for sensing at least one of air temperature and air humidity, and a controller for controlling the opening/closing operation of the solenoid valve while receiving input signals from the floor sensor and the sensor device, and the 1 Using a primary filter device, a secondary filter device, and a UV lamp device, fresh and sterilized air can be supplied to the place of use by eradicating bacteria and viruses in the air, and signals detected by the floor sensor, sensor device, and fine dust sensor When the air is contaminated or there is no air flow by using the controller as an input, the solenoid valve is turned OFF to cut off the air supplied to the breathing air charger.

Here, a transparent window is installed in the first and second purification chambers of the case, and a lamp is installed inside the first and second purification chambers, and the primary filter device and the secondary filter are passed through a confirmation window from the outside of the case. It is desirable to be able to visually check the degree of contamination of the device.

In addition, a plurality of heat sinks are installed in the UV lamp device installed in the sterilization chamber while forming an air inlet port in which a fan for inflow of air is installed and an air outlet for discharging air are formed in the sterilization chamber of the case. It is desirable to allow the UV lamp unit to be cooled through flowing air.

The clean air supply device of the breathing air charger provided by the present invention has the following effects.

First, the primary filter device of the HEPA filter class that removes dust and odors from the air on the air line inside the case, the UV lamp device that sterilizes viruses in the air, and the ULPA filter class that purifies the ultrafine dust and odors in the air. By applying a new clean air supply method in combination with a secondary filter device, it is possible to remove fine dust and odors in the air. In particular, it is possible to completely eradicate various germs such as Corona 19, viruses, and bacteria, so that fresh and sterilized air in the place of use There is an effect that can supply.

Second, it receives data from multiple sensors and displays the air condition in images or colors according to the detected concentration of each sensor, and a voice alarm can be installed to provide display and sound alarms to the user. It has the effect of improving the efficiency of overall device operation as well as efficient maintenance of the device, such as being able to check and replace the filter appropriately, and prevent contaminated air from being supplied to the air charger.

1 is a perspective view showing a clean air supply device of a breathing air charger according to an embodiment of the present invention
2 and 3 are cross-sectional views showing a clean air supply device for a breathing air charger according to an embodiment of the present invention
Figure 4 is a cross-sectional view showing an operating state of the clean air supply device of the breathing air charger according to an embodiment of the present invention

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a clean air supply device of a breathing air charger according to an embodiment of the present invention, Figures 2 and 3 are showing a clean air supply device of the breathing air charger according to an embodiment of the present invention It is a cross-sectional view.

1 to 3, the clean air supply device of the breathing air charger includes a case 15 in which an air purification area and an air sterilization area are formed.

The case 15 has a rectangular box shape, and has two spaces divided by a partition, namely, a first purification chamber 12, a sterilization chamber 13, and a second purification chamber 14.

Here, the first purification chamber 12 is a space in which the HEPA filter grade primary filter device 16 is installed, the sterilization chamber 13 is a space in which the UV lamp device 17 is installed, and the second purification chamber (14) is a space where the secondary filter device 18 of the Ulpa filter grade is installed.

In addition, an air inlet 10 is formed on the rear wall of the first purification chamber 12, through which external air flows into the first purification chamber 12, and An air outlet 11 is formed on the rear wall, and the air supply line 20 extending therefrom is connected to the breathing air charger 19 side.

Accordingly, the external air is purified and sterilized while passing through the first purification chamber 12 → sterilization chamber 13 → the second purification chamber 14, and then compressed air for breathing is supplied through the air supply line 20. It is supplied to the breathing air charger (19) to make.

Here, the top plates of the first purification chamber 12 and the second purification chamber 14 are made into an assembly-type structure using a screw fastening structure, so that the top plate can be removed when the filter is replaced, or the top plate can be reassembled after the filter is replaced. It is desirable to make it possible.

In addition, the case 15 is provided with a transparent window 25 and a lamp 26 as a means to check the filter contamination state.

The transparent window 25 is installed on the top plate of the first and second purification chambers 12 and 14 formed in the case 15, and the lamp 26 includes the first purification chamber 12 and It is installed inside the second purification chamber 14.

Accordingly, the primary filter device 16 and the secondary filter device 18 installed inside the first purification chamber 12 and the second purification chamber 14 in the lighted state of the lamp 26 are By visually checking through the transparent window 25, it is possible to easily check the degree of contamination by the color of the primary filter device 16 and the secondary filter device 18, and eventually, the primary filter device 16 at an appropriate time. ) And the secondary filter device 18 can be replaced, so that degradation of the filter device due to contamination can be prevented.

In addition, the clean air supply device of the breathing air charger includes a HEPA filter grade primary filter device 16 as a means for removing foreign substances, coarse particles, and fine dust in the air.

The primary filter device 16 is in the form of a hollow cylindrical filter in which one end is blocked and the other end is open, and the primary filter device 16 is horizontally disposed inside the first purification chamber 12. It is installed in a structure that is fixed on a partition forming a boundary with the sterilization chamber 13 by using the open end face.

Accordingly, air that has entered the first purification chamber 12 through the air inlet 10 of the case 15 passes through the primary filter device 16 from the outer circumferential side toward the center. Through this process, the air Fine dust and the like in the inside are filtered, and the air that has continuously entered toward the center of the primary filter device 16 is sent to the UV lamp device 17 side.

Here, the primary filter device 16 is a well-known HEPA filter or class H14 having a class H13, a removal rate of 99.75%, a dust size of 0.3 μm, a removal rate of 99.975%, and a dust size of 0.3 based on filter grade and purification capability (EN 1822 standard). A well-known HEPA filter of µm can be applied.

As a preferred embodiment, the primary filter device 16 may have a cylindrical structure in which three layers of filters are stacked, for example, a three-layer stack of a pre-filter on the outside, a wool/hepa filter in the middle, and a deodorization filter on the inside. You can also apply structural filters.

At this time, the pre-filter can filter coarse dust of about 20 μm or more with a pre-treatment filter, the Ulpa/Hepa tilter can filter fine dust of about 0.1 μm to 0.3 μm in the form of a fine non-woven fabric, and the deodorization filter is an activated carbon non-woven fabric. It is composed of a lamp and can remove odors from the air.

In addition, the clean air supply device of the breathing air charger includes a UV lamp device 17 as a means for sterilizing various bacteria in the air, for example, viruses such as Corona 19, as well as bacteria.

The UV lamp device 17 is installed in the sterilization chamber 13 formed inside the case 15 to sterilize viruses and bacteria in the air from which fine dust, etc. has been removed by the primary filter device 16. It is done.

To this end, the UV lamp device 17 includes a cylindrical pipe-shaped housing 31 installed inside the sterilization chamber 13, and a UV lamp installed in the housing 31 in a coaxial structure along an axis ( 32).

In addition, the front and rear ends of the housing 31 are connected to the first and second purification chambers 12 and 14 by respective connection pipes 33a and 33b, respectively, and the first purification chamber ( The connection pipe 33a connected to the 12) side may extend to the inside of the primary filter device 16 installed in the first purification chamber 12.

Accordingly, the air purified through the primary filter device 16 of the first purification chamber 12 enters the interior of the housing 31 in which the UV lamp 32 is installed through the connection pipe 33a. Then, in the interior of the housing 31, a process of sterilizing viruses and bacteria in the air by strong ultraviolet rays irradiated from the UV lamp 32 is performed, and the sterilized air passes through the connection pipe 33b. Through it can be sent to the interior of the second purification chamber (14).

In particular, the UV lamp device 17 is not a method of sterilizing by irradiating ultraviolet rays to the entire open space of the sterilization chamber 13, but a UV lamp 32 in a limited space, for example, the inner space of the housing 31. ) Is installed, and ultraviolet rays irradiated from the UV lamp 32 sterilize viruses and bacteria in the air at a close distance, that is, a method in which air flows at a close distance along the periphery of the UV lamp 32 and is sterilized Therefore, not only can the rapid sterilization treatment be possible, but also 100% sterilization treatment is possible.

In addition, heat generated by the UV lamp device 17 can be cooled by air cooling.

To this end, in the sterilization chamber 13 of the case 15, an air inlet 28 is formed in which a fan 27 for inflow of air is installed on one side, and at the same time, an air outlet 29 for exhausting air is formed on the other side. ) Is formed.

Here, the fan 27 can be controlled by the controller 24.

Further, in the housing 31 of the UV lamp device 18, a plurality of heat sinks 30 made of a disk shape are installed at regular intervals along the longitudinal direction of the housing.

Accordingly, when the fan 27 is operated, external air enters the interior of the sterilization chamber 13 through the air inlet 28, and the air introduced in this way is the heat sink 30 of the UV lamp device 18, that is, It comes into contact with the heat sink 30 installed in the housing 31, and in the end, the UV lamp device 18 can be cooled by an air-cooled cooling method, and the cooled air is discharged through the air outlet 29. You will be able to go out.

In addition, the clean air supply device of the breathing air charger includes a secondary filter device 18 of the Ulpa filter grade as a means for removing foreign substances, coarse particles, and fine dust in the air.

The secondary filter device 18 is in the form of a hollow cylindrical filter in which one end is blocked and the other end is open, and the secondary filter device 18 is horizontally disposed inside the second purification chamber 14. It is installed in a structure that is fixed on the case wall in which the air outlet 11 is formed, that is, the case wall to which the air supply line 20 is connected using the open end face.

Accordingly, the air that has entered the inside of the second purification chamber 14 through the connection pipe 33b of the UV lamp device 17 passes through the secondary filter device 18 from the outer periphery to the center, and this process is performed. Through the filter, fine dust and the like in the air are filtered, and the air that continuously enters the center of the secondary filter device 18 passes through the air outlet 11 and can flow along the air supply line 20.

Here, the secondary filter device 18 is a known Woolfa filter or grade U16 having a filter grade and purification capability (based on EN 1822) of grade U15, a removal rate of 99.9975%, and a dust size of 0.3 μm, a removal rate of 99.99975%, and a dust size of 0.3. A known wool wave filter of µm or grade U17, a removal rate of 99.9999%, and a known wool wave filter of 0.3 µm in dust size can be applied.

As a preferred embodiment, the secondary filter device 18 may have a cylindrical structure in which three layers of filters are stacked, for example, a three-layer stack of a pre-filter on the outside, a wool/hepa filter in the middle, and a deodorization filter on the inside. You can also apply structural filters.

At this time, the pre-filter can filter coarse dust of about 20 μm or more with a pre-treatment filter, the Ulpa/Hepa tilter can filter fine dust of about 0.1 μm to 0.3 μm in the form of a fine non-woven fabric, and the deodorization filter is an activated carbon non-woven fabric. It is composed of a lamp and can remove odors from the air.

In addition, the clean air supply device of the breathing air charger includes a floor sensor 21 and a solenoid valve 22 as means for sensing the flow of air provided to the breathing air charger 19 and opening and closing the flow of air. do.

The floor sensor 21 and the solenoid valve 22 are installed on an air supply line 20 connected between the air outlet 11 of the case 15 and the breathing air charger 19, respectively, and It senses the flow of air flowing along (20) and opens and closes the flow of air.

The floor sensor 21 and the solenoid valve 22 are electrically connected to the controller 24 side, and the controller 24 at this time outputs the solenoid valve 22 by receiving a detection signal from the floor sensor 21 as an input. Control.

For example, when there is no flow of air for a predetermined period of time, this is detected by the floor sensor 21, and when a detection signal of the floor sensor 21 is provided to the controller 24, the controller 24 The solenoid valve 22 is turned OFF (closed).

In addition, the detection signal of the floor sensor 21 can be used to turn off the power of the entire device after a certain time when there is no air flow, and the detection signal of the floor sensor 21 (when there is no air flow) When is provided to the controller 24 side, the system power is cut off by the output control of the controller 24, and as a result, it is possible to prevent overheating of the internal UV lamp device 17 and protect the circuit.

In addition, the clean air supply device of the breathing air charger includes a sensor device 23 as a means for detecting various states of air.

The sensor device 23 is installed on an inner side of the case 15, for example, on an inner side of the second purification chamber 14, and controls the oxygen concentration in the air, the carbon monoxide concentration, the carbon dioxide concentration, the air temperature, the air humidity, etc. It may include a sensor sensor, a carbon monoxide sensor, a carbon monoxide sensor, a temperature sensor, a humidity sensor, and the like that can detect each.

In particular, the apparatus of the present invention may further include a fine dust sensor 34 installed on the air supply line 20 connected to the breathing air charger 19 after the secondary filter device 18, in which case The fine dust sensor 34 of finally senses the content of fine dust in the air discharged after the secondary filter device 18, measures the degree of fine dust contamination of the finally discharged air, and provides it to the controller 24. Will do.

Accordingly, the harmfulness of the air (oxygen, carbon monoxide, carbon dioxide) and the air state (temperature, carbon monoxide concentration, carbon dioxide concentration, air temperature, air humidity, etc.) detected by each sensor of the sensor device 23 Humidity, fine dust pollution degree) can be known, and when the signal detected by these sensor devices 23 is input to the controller 24, the controller 24 pollutes based on the preset air hazard and air condition. In the display area, the ON operation (open) and OFF operation (close) of the solenoid valve 22 can be output-controlled.

At this time, when the solenoid valve 22 is operated OFF because the air hazard level and the air condition in the contamination display area exceed a preset value, it is possible to notify the user with a display or a sound alarm at the same time.

As an example, pre-set values for air hazards and air conditions may be based on Table 1 below.

Sunny indication Usually indicated Pollution sign Oxygen 20.5-21% 20-20.4% 19.9% or less carbon monoxide 0-1ppm 2-4ppm 5ppm or more carbon dioxide 0-500ppm 501-999ppm 1000ppm or more Humidity 0-4% RH 41-80% RH 81-100% RH Fine dust PM2.5 below 10 11-25 26 or more

※ The basis for setting in Table 1 above is the WHO standard for fine dust and the quality of compressed air for breathing.

In addition, the clean air supply device of the breathing air charger receives detection signals such as the floor sensor 21 and the sensor device 23, and controls the opening/closing operation of the solenoid valve 22 to control the controller 24. Includes.

The controller 24 includes a floor sensor 21, a sensor device 23, a UV lamp device 17, a fan 27, a solenoid valve 22, a lamp 26, an alarm lamp (not shown), and a sound. It is electrically connected to an alarm device (not shown) to supply power, receive signals, and output control signals.

This controller 24 is designed to be set and operated by a user.

Accordingly, the controller 24 turns off the solenoid valve 22 in the contamination display area and sounds an alarm, stops the operation of the breathing air charger 19 in the contamination display area, and the floor sensor 21 In the event of a flow that does not meet the preset air flow amount, it sounds an alarm to the user.

On the other hand, the floor sensor 21, the solenoid valve 22, and the fine dust sensor 34 may be installed outside the case 15 as shown in the embodiment of the present invention. Considering gender, it is also possible to install a floor sensor 21, a solenoid valve 22, and a fine dust sensor 34 there after creating a separate compartment (not shown) inside the second purification chamber 14. It can be said that it is desirable.

Accordingly, the operating state of the clean air supply device configured as described above is as follows.

Figure 4 is a cross-sectional view showing an operating state of the clean air supply device of the breathing air charger according to an embodiment of the present invention.

As shown in FIG. 4, the clean air supply device is a device that supplies clean air to the breathing air charger, and is connected to the breathing air charger 19 through an air supply line 20 to supply air. In addition, external air is introduced into the interior of the case 15 of such a clean air supply device by a suction pressure generated when the breathing air charger 19 is operated or a separate external air injector (not shown) such as a compressor. Can be.

This clean air supply device uses the primary filter device 16, the secondary filter device 18, and the UV lamp device 18 to eradicate bacteria and viruses in the air, and then supply fresh and sterilized air to the place of use. You will be able to.

For example, outside air is introduced into the first purification chamber 12 of the case 15 through the air inlet 10 of the case 15, and the air introduced in this way is the primary filter device 16 → UV The lamp device 17 → secondary filter device 18 is sequentially passed, and in this process, fine dust and odors in the air are removed, as well as viruses and bacteria contained in the air are sterilized. Clean air from which the virus and bacteria have been sterilized is supplied to the breathing air charger 19.

On the other hand, when air is polluted, the controller 24 receives data from the sensor device 23 and displays the air condition in an image or color according to the detected concentration of each sensor, and provides display and sound to the user through a voice alarm. The valve 22 is turned OFF to cut off the air supplied to the breathing air charger 19.

In addition, the controller 24 turns off the solenoid valve 22 and shuts off the system power when there is no air flow or an output value greater than the preset air flow does not come out by inputting a signal detected by the floor sensor 21 as an input. It is possible to protect the components that make up the system.

As described above, in the present invention, a combination of a HEPA-grade filter, a UV lamp device, and a ULPA-grade filter is used to remove fine dust and odors in the air, sterilize viruses and bacteria contained in the air, and supply them to the breathing air charger. By applying a new clean air supply device, it is possible to supply fresh and sterilized air to the place of use by eradicating various viruses and bacteria, as well as fine dust and odors in the air, and also detects the pollution level and condition of the air and displays it. It can be notified by sound, etc., and it is possible to improve the efficiency of device operation as well as efficient maintenance of the device, such as checking the filter contamination status through the transparent window to know the replacement cycle of the filter.

10: air inlet
11: air outlet
12: 1st purification room
13: sterilization room
14: 2nd purification room
15: case
16: primary filter device
17: UV lamp device
18: secondary filter device
19: breathing air charger
20: air supply line
21: floor sensor
22: solenoid valve
23: sensor device
24: controller
25: transparent window
26: lamp
27: fan
28: air inlet
29: air outlet
30: heat sink
31: housing
32: UV lamp
33a,33b: connecting pipe
34: fine dust sensor

Claims (3)

A case 15 which has an air inlet 10 and an air outlet 11 and is divided into three spaces of a first purification chamber 12, a sterilization chamber 13, and a second purification chamber 14, and the The first filter unit 16 of the HEPA filter that is installed inside the first purification chamber 12, the UV lamp unit 17 installed inside the sterilization chamber 13, and the second purification chamber ( It is installed in the air supply line 20 between the secondary filter device 18 of the Ulpa filter grade installed inside of 14) and the air outlet 11 and the breathing air charger 19 to detect the flow of air. The floor sensor 21 and the solenoid valve 22 for opening and closing the flow of air, and the second purification chamber 14 are installed inside the air to contain oxygen concentration, carbon monoxide concentration, carbon dioxide concentration, air temperature, and air humidity. A sensor device 23 for detecting one or more, a detection signal of the fine dust sensor 34 installed in the air supply line 20 after the secondary filter device 18, and a detection signal of the floor sensor 21 , Including a controller 24 for controlling the opening and closing operation of the solenoid valve 22 as well as receiving the detection signal of the sensor device 23,
By using the first filter device 16, the second filter device 18, and the UV lamp device 17, it is possible to supply fresh and sterilized air to the place of use by eradicating bacteria and viruses in the air. 21) And when there is no air flow or the air is contaminated using the controller 24 that inputs the signal detected by the sensor device 23, the solenoid valve 22 is turned OFF and supplied to the breathing air charger 21 Air can be blocked,
The UV lamp device 17 includes a cylindrical pipe-shaped housing 31 installed inside the sterilization chamber 13, and a UV lamp 32 installed in a coaxial structure along an axial line inside the housing 31. And the front end and the rear end of the housing 31 are connected to the first cleaning chamber 12 and the second cleaning chamber 14 by respective connection pipes 33a and 33b, respectively, and the first cleaning chamber at this time The connection pipe 33a connected to the (12) side can extend to the inside of the primary filter device 16 installed in the first purification chamber 12, thereby The air purified through the filter device 16 enters the interior of the housing 31 in which the UV lamp 32 is installed through the connection pipe 33a, and continues to the inside of the housing 31, the UV lamp ( The virus and bacteria in the air are sterilized by the strong ultraviolet rays irradiated from 32), and the sterilized air can be sent to the inside of the second purification chamber 14 through the connection pipe 33b. And
The UV lamp device 17 is not a method of sterilizing by irradiating ultraviolet rays to the entire open space of the sterilization chamber 13, but installing the UV lamp 32 in the internal space of the housing 31, which is a limited space, Since the ultraviolet rays irradiated from the UV lamp 32 sterilize viruses and bacteria in the air at a close distance, that is, the air flows along the periphery of the UV lamp 32 at a close distance and sterilizes them. Not only is possible, but also 100% sterilization treatment is possible,
In the sterilization chamber 13 of the case 15, an air inlet 28 having a fan 27 installed for inflow of air and an air outlet 29 for discharging air are formed, and at the same time, in the sterilization chamber 13 A number of heat sinks 30 are installed in the UV lamp device 18 to be installed to supply clean air to the breathing air charger, characterized in that the UV lamp device 18 can be cooled through the air flowing inside the sterilization chamber. Device.
The method according to claim 1,
A transparent window 25 is installed in the first and second purification chambers 12 and 14 of the case 15, and at the same time, a lamp is placed inside the first and second purification chambers 12 and 14. (26) is installed so that the degree of contamination of the primary filter device 16 and the secondary filter device 18 can be visually confirmed through a transparent window 25 from the outside of the case. Clean air supply. delete

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