KR102280667B1 - Fine dust and airborne microbial measurement device using multiple light sources - Google Patents

Abstract

The present invention measures fine dust and airborne microorganisms, but measures or excludes scattered light of fine dust using multiple light sources and secures only light emission signals in a specific wavelength region where microorganisms react to check the presence or absence of microorganisms in a dry state And it relates to an apparatus for measuring fine dust and airborne microorganisms using multiple light sources to precisely measure the concentration of the identified microorganisms, comprising: a hollow body with an air flow path formed in the center; a microorganism measuring means installed in the main body portion of the inlet hole of the air passage and using a light source in the first wavelength region to measure fine dust in the air introduced into the air passage; and a microorganism measuring means installed in the body part on the outlet side of the air flow path and using multiple light sources having different wavelength ranges to measure microorganisms in the air on the air flow path, wherein the body part has the fine dust It is characterized in that a plurality of mounting holes and mounting parts to which the modules constituting the measuring means and the microorganism measuring means are mounted are formed.

Description

FINE DUST AND AIRBORNE MICROBIAL MEASUREMENT DEVICE USING MULTIPLE LIGHT SOURCES

The present invention relates to an apparatus for measuring fine dust and airborne microorganisms using multiple light sources, and more particularly, measuring fine dust and airborne microorganisms, using multiple light sources to measure or exclude scattered light of fine dust and react with microorganisms It relates to an apparatus for measuring fine dust and airborne microorganisms using multiple light sources, which can confirm the presence or absence of microorganisms in a dry state and precisely measure the concentration of the microorganisms in a dry state by securing only a light emission signal in a specific wavelength region.

As is well known, an apparatus for measuring fine dust or airborne microorganisms using optics has been introduced in the prior art.

For example, Korean Patent Registration No. 10-1921382 (hereinafter referred to as 'prior art 1') discloses a device for measuring airborne microorganisms and an air conditioner including the same.

The configuration of the prior art 1 includes an air flow path through which air containing suspended microorganisms flows, a first body provided on one side of the air flow path and having a first space part and a second space part, and the other side of the air flow path. and a second body in which a collecting unit for collecting the floating microorganisms is installed, a light emitting unit installed in the first space and irradiating light in a preset wavelength region toward the collecting unit, and installed in the second space, a light receiving unit for detecting a fluorescence signal generated from light acting on riboflavin included in the floating microorganism is included, a first path of light from the light emitting unit toward a point of the collecting unit, and the light receiving unit from a point of the collecting unit The second path of the fluorescent signal toward the fluorescence signal forms a preset path angle.

In addition, Korean Patent Laid-Open Publication No. 10-2018-0072370 discloses a device for measuring airborne microorganisms and an air conditioner including the same (hereinafter referred to as 'prior art 2').

The prior art 2 is an air passage induced by air containing airborne microorganisms, a charging part disposed inside the air passage and disposed on one side of the air passage through which air is introduced, disposed inside the air passage and air flow a collecting unit disposed on the rear side of the charging unit in the direction; a high voltage generator connected to the charging unit and the collecting unit to apply a high voltage to the charging unit and the collecting unit; light in a preset wavelength region toward the collecting unit a light emitting unit for irradiating light, a light receiving unit for detecting a fluorescent signal generated from riboflavin contained in the airborne microorganisms collected in the collecting unit, wherein the collecting unit collects the floating microorganisms charged by the charged unit, and electrical conductivity is It has a feature that includes a collection organ composed of a glass member.

However, in the case of the prior art 1, the light receiving unit for detecting the fluorescence signal generated from the light acting on riboflavin contained in the airborne microorganism is arranged on the same side as the light source with respect to the flow path. Therefore, in this case, since riboflavin can be detected not only in airborne microorganisms but also in human skin and vitamin C, there is a problem in that it is difficult to determine a value obtained only from microorganisms.

In addition, since airborne microorganisms are collected together with fine dust, there is a possibility that noise caused by fine dust may be generated.

In addition, in the prior art 1, the range of the upper and lower width W of the air passage is 4 to 6 mm, the cross section is rectangular, and the upper and lower flow passages have the same width.

In this case, since the air flow at the corners of the rectangular cross-section is not constant, there is a high possibility of noise amplification during measurement due to the accumulation of fine dust or microorganisms. do.

In addition, in the prior art 2, a collecting pipe made of a glass member having electrical conductivity is configured. When the collecting pipe is applied as a glass member, it can be installed only on the flow path wall, so the installation freedom is very low, and damage due to material properties There is a problem in that dust collection efficiency is lowered due to excessive conductivity.

In addition, the prior art 2 discloses a configuration of a high voltage generator connected to the charging unit and the collecting unit and applying a high voltage to the charging unit and the collecting unit. The structure in which the charging unit and the collecting unit are connected makes it difficult to periodically clean the inside. When high voltage is applied to both the charging part and the collecting part, it is difficult to reduce the size of the power peak because high energy is required.

In addition, the wire and plate type electrode of the prior art 2 has a problem in that accurate measurement is difficult because ozone is generated and microorganisms can be killed.

Korean Patent Publication No. 10-1921382, Korean Patent Publication No. 10-2018-0072370

The present invention has been devised to solve the above problems, and an object of the present invention is to measure fine dust and airborne microorganisms, but use multiple light sources to measure or exclude scattered light of fine dust and a specific wavelength region in which microorganisms react It is to provide an apparatus for measuring fine dust and airborne microorganisms using multiple light sources that can confirm the presence or absence of microorganisms in a dry state by securing only the light emission signal from the dry state and precisely measure the concentration of the confirmed microorganisms.

The present invention for achieving the above object is a hollow body portion having an air flow path formed in the center; a microorganism measuring means installed in the main body portion of the inlet hole of the air passage and using a light source in the first wavelength region to measure fine dust in the air introduced into the air passage; and a microorganism measuring means installed in the body part on the side of the outlet hole of the air flow path and using a plurality of light sources having different wavelength ranges to measure microorganisms in the air on the air flow path,

It is characterized in that the main body is formed with a plurality of mounting holes and mounting parts to which the modules constituting the fine dust measuring means and the microorganism measuring means are mounted.

In addition, according to the present invention, the body portion is characterized in that it is composed of a cylindrical shape or a hollow hexahedron having an air flow path.

In addition, according to the present invention, the body portion is characterized in that the diameter of the inlet hole through which air is introduced and the outlet hole through which air is discharged are the same as each other, or the diameter of the outlet hole is configured to be smaller than the diameter of the inlet hole.

In addition, according to the present invention, the fine dust measuring means includes a first light source that irradiates a light source of a first wavelength region onto the air passage of the main body, and scattered light that is scattered by the light irradiated from the first light source in response to the fine dust. It consists of a first light collecting unit for receiving light, and a first beam dump unit providing a path through which the light irradiated from the first light source unit can move in order to prevent the fluorescence signal from being reduced due to reflection and scattering on the air path by fine dust. characterized in that

In addition, according to the present invention, the first light source unit includes a heat dissipation case unit for fixing internal components and performing a heat dissipation function, a cooling unit for emitting heat generated from the component, and a light emitting unit for emitting infrared rays in the first wavelength region; It is characterized in that it consists of a condensing lens for condensing the light emitted from the light emitting unit and converting it into parallel light, and a filter allowing only light of a predetermined wavelength region to pass from the light emitting unit.

In addition, according to the present invention, the first wavelength region is characterized in that the wavelength band of 620 ~ 650nm.

In addition, according to the present invention, the first light collecting unit includes a heat dissipation case unit for fixing internal components and performing a heat dissipation function, a filter allowing only the first wavelength region of scattered light scattered from fine dust to pass through, and the scattered light passing through the filter. It is characterized in that it consists of a condensing lens for focusing the light, and a light receiving element which receives the light flowing through the condensing lens and processes the signal.

In addition, according to the present invention, the microorganism measuring means irradiates a light source in the infrared region onto the air flow path of the main body, and at least two light source units irradiating light sources in different wavelength regions, and the light source unit is collected by the light irradiated from the light source unit. At least two light collecting units for receiving light absorbed or self-emitting by floating microorganisms, a collecting unit for collecting airborne microorganisms on an air flow path using a pressure difference, and the light irradiated from the light source unit is transmitted to the collecting unit, It characterized in that it comprises at least one or more dumping portion that provides a path so that a portion of the light that has passed through the collection portion can move.

In addition, according to the present invention, the plurality of light sources includes a second light source for irradiating light in a second wavelength region (400 to 410 nm), and a third wavelength region (340 to 365 nm) or a fourth wavelength region (255 to 275 nm). It is characterized in that the third light source for irradiating the.

In addition, according to the present invention, the second light collecting unit includes a heat dissipation case unit that fixes internal components and performs a heat dissipation function, and 275 ~ 285 nm, 440 ~ 460 nm, 510 ~ A plurality of filters that pass only a signal in one wavelength region of the 570 nm wavelength region, a condensing lens for condensing the scattered light passing through the filter, and a light receiving element for receiving and signal processing the light entering through the condensing lens characterized in that it is composed.

In addition, according to the present invention, the microorganism measuring means irradiates to multiple wavelength ranges using multiple light sources when measuring microorganisms, but sequentially provides a narrow wavelength band from a high wavelength to a low wavelength, and amino acids contained in airborne bacteria (Bioaerosol) (Phenylalanine), tyrosine (Tyrosine), tryptophan (Tryptophan), NADH, NADPH, flavin (Flavin) is characterized in that it is configured to receive complex energy that can be absorbed or self-released, respectively.

In addition, according to the present invention, it is characterized in that a micropump is installed in the outlet hole of the body part at the lower end of the collecting part.

In addition, according to the present invention, the collecting unit is characterized in that it is a non-fluorescent filter, a porous filter.

In addition, according to the present invention, the first beam dump part and the second beam dump part include an insertion part protruding from the center, and an entrance that is formed in the insertion part and communicates with the air passage to allow light to enter, so that scattered light is not formed. It is characterized in that it consists of a dump part that becomes wider as it goes.

In addition, according to the present invention, the microorganism measuring means irradiates a light source in the infrared region onto the air flow path of the main body, and at least two light source units irradiating light sources in different wavelength regions, and the light source unit is collected by the light irradiated from the light source unit. At least two light collecting units for receiving light absorbed or self-emitted by airborne microorganisms, and a collecting unit installed parallel to the inner surface of the air passage of the main body to collect airborne microorganisms on the air passage by an electric dust collection method, and the light source unit At least one dump part that provides a path so that the light irradiated from the light is transmitted to the collecting unit and a portion of the light that has passed through the collecting unit can move, and is installed in the main body so that the electrode part is configured to face the inside of the air flow path, It characterized in that it comprises a high voltage generator for generating a corona discharge to the collecting part.

In addition, according to the present invention, the collecting part is composed of a support part protruding to the front, a curved part formed at an end of the support part, and a collection filter attached to the curved part, and the curved part is configured to coincide with the inside of the air flow path. characterized.

In addition, according to the present invention, the high voltage generating unit is characterized in that it includes a needle or brush type high voltage electrode and a ground electrode.

In addition, according to the present invention, the microorganism measuring means irradiates a light source in the infrared region onto the air flow path of the main body, and at least two light source units irradiating light sources in different wavelength regions, and the light source unit is collected by the light irradiated from the light source unit. At least two or more light collecting units for receiving light absorbed or self-emitting by floating microorganisms, a collecting unit installed horizontally on the air passage to collect airborne microorganisms, and the light irradiated from the light source unit is transmitted to the collecting unit, It is characterized in that it is composed of at least one dump unit providing a path so that the light passing through the collecting unit can move, and a high voltage generator on the upper end of the collecting unit that collects microorganisms in an electrostatic precipitation method.

In addition, according to the present invention, the body part is characterized in that it is configured to be able to separate or combine the fine dust measuring means and the microorganism measuring means.

In addition, according to the present invention, the light source unit, the light collecting unit, the beam dump unit, and the dust collecting unit constituting the fine dust measuring means and the microorganism measuring means are modularized, respectively, and are configured to be mounted or separated from the mounting hole and the mounting unit of the main body.

As described above, the present invention measures fine dust and airborne microorganisms, and measures or excludes scattered light of fine dust using multiple light sources and secures only luminescence signals in a specific wavelength region where microorganisms react to ensure the presence or absence of microorganisms in a dry state It provides the advantage of being able to confirm and accurately measure the concentration of the identified microorganism.

In addition, the microorganism measuring means of the present invention irradiates to multiple wavelength ranges using multiple light sources when measuring microorganisms, but sequentially provides a narrow wavelength band from a high wavelength to a low wavelength to sequentially provide amino acids (phenylalanine) contained in floating microorganisms (Bioaerosol). (Phenylalanine)), tyrosine, tryptophan, NADH, NADPH, and flavin are provided with complex energy that can be absorbed or self-released, respectively, making it possible to measure each type of microorganism.

In addition, the present invention can be configured so that the main body can be separated or combined into the fine dust measuring means and the microorganism measuring means, and the light source unit, the light collecting unit, the beam dump unit and the collecting unit forming the fine dust measuring means and the microorganism measuring means are modularized, respectively. It provides advantages such as easy replacement and convenient internal cleaning.

In addition, the present invention is formed in a structure in which the light source unit and the light collecting unit face each other based on the air flow path in the body unit, or the light source unit and the light collecting unit are arranged on the same side, but the arrangement surface may be different, and the number of beam dump units according to the number and arrangement of the light sources can be configured to have an increase or a single structure, so the degree of freedom for arrangement is high.

In the present invention, since the cylindrical structure of the main body has no corners, it is easy to clean the flow path and the possibility of accumulation of fine dust or microorganisms is low, thereby reducing noise during measurement.

In addition, in the present invention, when the diameter of the air flow path is the same, the flow path can be designed to be long, so it is easy to measure in a large space. It provides the advantage of capturing fine dust and airborne microorganisms with low energy.

In addition, according to the present invention, the collection unit made of a filter or a porous conductive polymer can be freely installed inside the air passage or on the wall of the air passage, so the installation freedom is very high, and since installation is easy, collection by electric dust collection or pressure difference is possible.

1 is a perspective view of an apparatus for measuring fine dust and airborne microorganisms using multiple light sources according to a first embodiment of the present invention;
2 is a partially cut-away perspective view of FIG. 1;
3 is an exploded perspective view of FIG. 1;
Figure 4 is a cross-sectional view AA of Figure 1,
5 is a cross-sectional view taken along line BB of FIG. 1;
6 is another embodiment of the body part according to the present invention,
7 is a partially cut-away perspective view of the fine dust measuring unit of FIG. 1;
8 is a side cross-sectional perspective view of the first light source of FIG. 7;
9 is a side cross-sectional perspective view of the first light collecting part of FIG. 7;
10 is a perspective view of the first beam dump part of FIG. 7;
11 is a partially cut-away perspective view of the microorganism measuring unit of FIG. 1;
12 is a side cross-sectional perspective view of the second light collecting part of FIG. 11;
13 is a perspective view of an apparatus for measuring fine dust and airborne microorganisms using multiple light sources according to a second embodiment of the present invention;
14 is a cross-sectional view taken along the AA of FIG. 13;
15 is a cross-sectional view taken along line BB of FIG. 13;
16 is an exploded perspective view of FIG. 13;
17 is a partially cut-away perspective view of FIG. 13;
18 is a partially cutaway perspective view of an apparatus for measuring fine dust and airborne microorganisms using multiple light sources according to a third embodiment of the present invention.

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

1 is a perspective view of an apparatus for measuring fine dust and airborne microorganisms using multiple light sources according to a first embodiment of the present invention, FIG. 2 is a partially cutaway perspective view of FIG. 1, and FIG. 3 is an exploded perspective view of FIG.

As shown, the apparatus 100 for measuring fine dust and airborne microorganisms using multiple light sources according to the first embodiment of the present invention,

The hollow body part 110 having an air flow path 113 formed in the center thereof, and the body part 110 on the inlet hole 113a side of the air flow path 113 are installed in the air flow path 113 to flow into the air flow path 113 . The fine dust measuring means for measuring fine dust in the air and the body part 110 on the outlet hole 113b side of the air flow path 113 are installed to measure the microorganisms in the air on the air flow path 113. and means for measuring microorganisms.

The main body 110 may have a cylindrical shape or a hollow hexahedral structure having an air flow path 113 as shown in FIG. 6B, but is not necessarily limited thereto.

The air flow path 113 of the main body 110 has a circular shape, and the diameters of the inlet hole 113a through which air is introduced and the outlet hole 113b through which air flows out are equal to each other, or (a) of FIG. , (c), the diameter of the outlet hole 113b may be configured to be smaller than the diameter of the inlet hole 113a.

When the diameters of the inlet hole 113a and the outlet hole 113b are the same, the diameter is 1 cm or less, and when the diameters of the inlet hole 113a and the outlet hole 113b are different, the diameter of the inlet hole 113a is 1 cm or less, the diameter of the outlet hole (113b) is preferably 1 mm or more.

Here, the reason why the diameter of the outlet hole 113b is smaller than that of the inlet hole 113a is to accelerate the flow rate of the air passing through the air passage 113 .

In addition, a plurality of mounting holes and mounting units are formed in the main body 110 , in which modules constituting the fine dust measuring means and the microorganism measuring means are mounted.

The mounting hole and the mounting portion are increased as needed, and the installation position or angle can be changed at will.

For example, the main body 110 has a first mounting hole 111a, a second mounting hole 111b, and a first mounting part 111c in which a module constituting the fine dust measuring means is mounted, and the microorganism measuring means The third mounting hole (111d), the fourth mounting hole (111e), the fifth mounting hole (111f) and the second mounting part (112a) in which the module forming the module is mounted can be configured to penetrate through the air flow path 113 from the outer peripheral surface. there is.

The fine dust measuring means is installed near the inlet hole 113a of the air flow path 113 , and the microorganism measuring means is configured to be installed near the outlet hole 113b of the air flow path 113 , and the body part The air flowing into the air flow path 113 of 110 is configured so that fine dust can be measured first by the fine dust measuring means.

In addition, the fine dust measuring means uses a light source of a first wavelength region to measure fine dust, and the microorganism measuring means is configured to use multiple light sources having different wavelength regions to measure microorganisms.

The fine dust measuring means includes a first light source unit 120 for irradiating a light source in a first wavelength region (620 to 650 nm) onto the air passage 113 of the body unit 110, and from the first light source unit 120. The first light collecting unit 130 for receiving the scattered light (fluorescent signal) scattered in response to the irradiated light in response to the fine dust (PM1.0 to PM10), and the light irradiated from the first light source unit 120 to the fine dust and a first beam dump unit 140 that provides a movement path to prevent a fluorescence signal from being reduced due to reflection and scattering on the air passage 113 by the air flow path 113 .

The first light source part 120 is mounted in the first mounting hole 111a of the body part 110 as shown in FIGS. 4, 7 and 8, and the first beam dump part 140 on which the irradiated light is located. ) to be installed downward at a certain angle.

The first light source unit 120 includes a heat dissipation case unit 121 for fixing internal components and performing a heat dissipation function, a cooling unit 122 for emitting heat generated from the components, and a light emitting unit 123 for emitting infrared rays. and a condensing lens 124 for condensing the light emitted from the light emitting unit 123 and converting it into parallel light, and a filter 125 allowing only light of a predetermined wavelength region to pass from the light emitting unit 123 is composed of

Here, the light emitting unit 123 may be a laser diode or an LED that irradiates light to a first wavelength region (620 to 650 nm).

The first light collecting part 130 is mounted in the second mounting hole 111b of the main body 110 as shown in FIGS. 4, 7 and 9 , and by the light irradiated from the first light source part 120 . In order to receive the scattered light generated on the air passage 113, it is installed upward at a certain angle.

The first light collecting unit 130 includes a heat dissipation case unit 131 that fixes internal components and performs a heat dissipation function, and a filter that allows only the first wavelength region (620 to 650 nm) of scattered light scattered from fine dust to pass through ( 132), a condensing lens 133 for condensing the scattered light passing through the filter 132, and a light receiving element 134 for receiving and signal processing the light entering through the condensing lens 133.

Here, the filter 132 is preferably a long pass filter, and serves to block noise generated from an external white light source.

The light receiving element 134 is a photodiode, which provides information on the concentration of fine dust and the size of fine dust, and at the same time allows it to be used as a noise removal signal to provide information on microorganisms.

The first beam dump unit 140 is mounted on the first mounting unit 111c of the body unit 110 as shown in FIGS. 3, 4, 7 and 10 , and is irradiated from the first light source unit 120 . The first light source unit 120 and the air flow path 113 are installed to face each other to receive light.

The first beam dump part 140 has an insertion part 141 protruding from the center and inserted into a fitting hole 111g formed in the first mounting part 111c of the body part 110, and the insertion part 141 ) and communicates with the air flow path 113, and the entrance to which light enters is narrow enough to prevent scattered light from being formed, and is composed of a dump part 142 that is widened toward the inside.

The surface of the first beam dump unit 140 is coated with a light-absorbing material or formed by attaching a light-absorbing film, and is formed as a porous surface and has an asymmetrical structure.

The microorganism measuring means irradiates a light source of an infrared region onto the air passage 113 of the main body 110, but at least two light source units irradiating light sources of different wavelength regions, and the light irradiated from the light source unit. At least two or more light collecting units for receiving light absorbed or self-emitted by the captured airborne microorganisms, a collecting unit 180 for collecting airborne microorganisms on the air flow path 113 using a pressure difference, and the light source irradiated from the light source unit and at least one dump unit that provides a path so that light is transmitted to the collecting unit 180 and a portion of the light that has passed through the collecting unit 180 can move.

The plurality of light source units irradiate light to a second light source unit 150 that irradiates light to a second wavelength region (400 to 410 nm), and a third wavelength region (340 to 365 nm) or a fourth wavelength region (255 to 275 nm). It may be a third light source unit 160 that

The second light source unit 150 and the third light source unit 160 are mounted in the third mounting hole 111d and the fourth mounting hole 111e of the main body 110 as shown in FIGS. 5 and 11 , and the irradiated light It is installed downward at a predetermined angle to face the collecting unit 180 and the second beam dump unit 190 located at the lower portion.

The configuration of the second light source unit 150 and the third light source unit 160 is, as shown in FIG. 8, heat dissipation case units 151 and 161 for fixing internal components and performing a heat dissipation function, and a cooling unit for emitting heat generated from the components ( 152 and 162), light emitting units 153 and 163 that emit infrared light, condensing lenses 154 and 164 that condense the light emitted from the light emitting unit and convert and transmit it into parallel light, and light of a predetermined wavelength region from the light emitting unit so that only light in a predetermined wavelength region can pass through It consists of one filter (155,165), respectively.

Here, the light emitting units 153 and 163 are laser diodes or LEDs, and may also be used for the purpose of sterilizing the microorganisms collected by the collecting unit 180 .

The light condensing unit is composed of at least two or more to correspond to the light emitting unit. Here, only the second light collecting unit 170, which is a single light concentrating unit, will be described.

The second light collecting unit 170 is mounted in the fifth mounting hole 111f of the main body 110 as shown in FIGS. 5, 11 and 12 , and the second light source unit 150 or the third light source unit 160 . ) is installed downward at a certain angle in order to receive the light absorbed or self-emitted by the microorganisms collected on the collecting unit 180 by the light irradiated from the .

The second light collecting unit 170 includes a heat dissipation case unit 171 for fixing internal components and performing a heat dissipation function, and 275 to 285 nm, 440 of a wavelength region of light emitted by the microorganisms collected in the collecting unit 180 . A plurality of filters 172 and 173 for passing only a signal in one of the wavelength ranges of ~460 nm and 510 ~ 570 nm, a condensing lens 174 for condensing the scattered light passing through the filters 172 and 173, and the condensing lens It is composed of a light receiving element 175 that receives the incoming light through 174 and processes the signal.

Here, the filters 172 and 173 are long pass filters and serve to block noise other than the fluorescence signal coming from the microorganism.

The microorganism measuring means irradiates to multiple wavelength regions using multiple light sources when measuring microorganisms, but sequentially provides a narrow wavelength band from a high wavelength to a low wavelength to sequentially provide amino acids (Phenylalanine), tyrosine, contained in floating microorganisms (Tyrosine), tryptophan, NADH, NADPH, and flavin are provided with complex energy that can be absorbed or self-released, respectively, so that it is possible to measure each type of microorganism.

The collecting unit 180 is a non-fluorescent non-woven fabric filter, and is composed of a porous filter of tens to hundreds of nm so as to collect fine dust and microorganisms of PM2.5 or less.

In addition, according to the first embodiment of the present invention, a micropump 114 is installed in the outlet hole 113a of the main body 110 at the lower end of the collecting unit 180 .

The micropump 114 generates a pressure difference (suction operation) on the air flow path 113 , so that the suspended dust on the air flow path 113 of the main body 110 is quickly collected by the collecting unit 180 . make it possible

In addition, the collection unit 180 has an effect of reducing measurement noise by blocking scattered light or fluorescence caused by a light source by using a non-fluorescent filter.

The dump part is composed of at least one or more to correspond to the light emitting part. Here, only the second beam dump part 190, which is a single beam dump part, will be described.

The second beam dump unit 190 is mounted on the second mounting unit 112a of the main body 110 as shown in FIGS. 3, 5 and 11 , and the second light source unit 150 and the third light source unit 160 . ), the second light source unit 150 and the third light source unit 160 are installed to face each other with the air passage 113 interposed therebetween.

The second beam dump unit 190 includes an insertion unit 191 protruding from the center, and an inlet formed in the insertion unit 191 and communicating with the air flow path 113 through which light enters, so that scattered light is not formed. It is composed of a dump part 192 that is narrow and widens toward the inside.

13 is a perspective view of an apparatus for measuring fine dust and airborne microorganisms using multiple light sources according to a second embodiment of the present invention, FIG. 14 is a cross-sectional view AA of FIG. 13, FIG. 15 is a cross-sectional view BB of FIG. 13 is an exploded perspective view, and FIG. 17 is a partially cut-away perspective view of FIG. 13 .

As shown, the apparatus for measuring fine dust and airborne microorganisms using multiple light sources according to the second embodiment of the present invention,

Compared with the first embodiment of the present invention, the biggest difference is that the collection of microorganisms is configured by an electrostatic precipitation method using corona discharge.

That is, the apparatus 200 for measuring fine dust and airborne microorganisms using the multiple light sources,

The hollow body part 210 having an air flow path 211 formed in the center thereof, and the body part 210 on the inlet hole 211a side of the air flow path 211 are installed in the air flow path 211 to flow into the air flow path 211 . The fine dust measuring means for measuring fine dust in the air and the body portion 210 on the outlet hole 211b side of the air flow path 211 are installed in the air flow path 211 to measure the microorganisms in the air. Including means for measuring microorganisms,

The fine dust measuring means includes a first light source 220 irradiating a light source in a first wavelength region (620 to 650 nm) onto the air passage 211 of the main body 210, and from the first light source 220 The second light collecting unit 230 that receives the scattered light (fluorescent signal) scattered in response to the irradiated light in response to the fine dust (PM1.0 to PM10), and the light irradiated from the first light source unit 220 to the fine dust and a first beam dump unit 240 that provides a movement path to prevent a fluorescence signal from being reduced due to reflection and scattering on the air passage 211 by the air flow path 211 .

The microorganism measuring means irradiates a light source in the infrared region onto the air passage 211 of the main body 210 and at least two light source units irradiating light sources in different wavelength regions, and the light irradiated from the light source unit. At least two or more light collecting units for receiving light absorbed or self-emitted by the collected airborne microorganisms, and installed in parallel on the inner surface of the air flow path 211 of the main body 210, the air flow path 113 by the electric dust collection method At least providing a path so that the collecting unit 280 for collecting the floating microorganisms on the upper surface, and the light irradiated from the light source unit is transmitted to the collecting unit 280 and a part of the light passing through the collecting unit 280 can move. It includes one or more dump parts, and a high voltage generator 213 installed on the main body 210 so that the electrode part faces inside the air flow path 211 and generating a corona discharge to the collecting part 280 .

As shown in FIG. 16 , the collecting part 280 includes a support part 281 protruding to the front, a curved part 280 formed at an end of the support part 281 , and a collection filter attached to the curved part 282 . (283).

The curved portion 282 is configured to coincide with the inner side of the air flow path 211 .

The collection filter 283 is a non-fluorescent nonwoven filter, a porous conductive filter, and is configured to be replaceable.

The high voltage generator 213 includes a needle or brush type high voltage electrode 213a and a ground electrode 213b, and induces corona discharge to charge fine dust and collect the dust in the collection filter 283. .

The needle or brush-type high voltage electrode 213a enables discharge at a lower voltage, provides the advantage of reducing ozone generation (2-8 ppb), and as long as the ground is maintained, there is no change in the amount of ions generated due to contamination and is semi-permanent. can be used

18 is a partially cut-away perspective view of an apparatus for measuring fine dust and airborne microorganisms using multiple light sources according to a third embodiment of the present invention.

As shown, the apparatus for measuring fine dust and airborne microorganisms using multiple light sources according to the second embodiment of the present invention,

Compared with the first embodiment of the present invention, the difference is that the micropump is removed and a high voltage generator 213 is installed on the upper end of the collecting unit 180 to collect microorganisms in an electrostatic precipitation method.

The high voltage generator 213 has the same configuration as that of the second embodiment of the present invention, and the high voltage generator 213 induces a corona discharge to charge fine dust to collect the dust in the collection unit 180 . .

The device for measuring fine dust and airborne microorganisms using the multiple light sources of the present invention configured as described above,

As shown in FIG. 3 , the body part 110 is configured to be separated into an upper part 111 and a lower part 112 , and a seating protrusion 112b on which the collecting part 180 is seated and supported is provided on the upper end of the lower part 112 . formed, and a coupling groove 111g is formed at the lower end of the upper part 111 to correspond to this, so that the upper part 111 and the lower part 112 are fitted or combined with a screw fastening structure not shown. .

As such, as the body part 110 can be separated or combined into the upper part 111 and the lower part 112, the fine dust measuring means and the microorganism measuring means of FIGS. 7 and 11 can be separated or combined in the same way. can be configured to

In addition, the present invention provides the advantages of easy replacement and convenient internal cleaning, since the light source unit, the light collecting unit, the beam dump unit, and the dust collecting unit constituting the fine dust measuring means and the microorganism measuring means are modularized, respectively.

In addition, the light source unit and the light collecting unit are formed in a structure in which the light source unit and the light collecting unit face each other based on the air flow path in the body unit, or the light source unit and the light collecting unit are disposed on the same side, but the arrangement surface may be different. It can be configured to have a single structure, so the degree of freedom for arrangement is high.

In addition, since the cylindrical structure of the main body has no corners, it is easy to clean the flow path and the possibility of accumulating fine dust or microorganisms is low, thereby reducing noise during measurement.

In addition, when the diameter of the air flow path is the same, the flow path can be designed to be long, so it is easy to measure in a large space. It provides the advantage of being able to capture fine dust and airborne microorganisms.

In addition, the filter or the collecting unit made of a porous conductive polymer can be freely installed inside the air channel or on the wall of the air channel, so the installation freedom is very high, and since it is easy to install, it is possible to collect by electric dust collection or pressure difference.

100,200: measuring device 110,210: body part
111: upper 112: lower
111a: first mounting hole 111b: second mounting hole
111c: first mounting part 111d: third mounting hole
111e: 4th mounting hole 111f: 5th mounting hole
111g: fitting hole 111h: coupling groove
112a: second mounting portion 112b: seating projection
113: air passage 113a: inlet hole
113b: outlet hole 114: micropump
114: micropump 120: first light source unit
130: first light collecting unit 140: first beam dump unit
150: second light source unit 160: third light source unit
170: second light collecting unit 180: collecting unit
190: second beam dump unit 213: high voltage generator

Claims (20)

a hollow body portion having an air flow path formed in the center;
fine dust measuring means installed in the main body part on the inlet side of the air flow path and using a light source of a first wavelength region to measure fine dust in the air flowing into the air flow path; and
and a microorganism measuring means installed in the main body on the side of the outlet hole of the air passage and using a plurality of light sources having different wavelength ranges to measure microorganisms in the air on the air passage,
A plurality of mounting holes and mounting units are formed in the main body to which modules constituting the fine dust measuring means and the microorganism measuring means are mounted,
An apparatus for measuring fine dust and airborne microorganisms using a plurality of light sources, characterized in that the mounting hole and the tip of the module mounted on the mounting part are exposed to the air flow path. The method according to claim 1,
The apparatus for measuring fine dust and airborne microorganisms using multiple light sources, characterized in that the fine dust measuring means is formed before the microorganism measuring means based on the flow direction of the air flowing through the air passage. The method according to claim 1 or 2,
Fine dust and airborne microorganisms using multiple light sources, characterized in that the main body is configured such that the diameter of the inlet hole through which air is introduced and the outlet hole through which air is discharged is the same or the diameter of the outlet hole is smaller than the diameter of the inlet hole measuring device. The method according to claim 1,
The fine dust measuring means includes a first light source for irradiating a light source of a first wavelength region onto the air passage of the main body, and a first collection for receiving scattered light scattered in response to the fine dust by the light irradiated from the first light source. Comprising a light part and a first beam dump part that provides a path through which the light irradiated from the first light source part can move in order to prevent the fluorescence signal from being reduced due to reflection and scattering on the air passage by fine dust,
The first light source part and the first light collecting part are installed downward with respect to the air flow path,
The first beam dump unit is an apparatus for measuring fine dust and airborne microorganisms using multiple light sources, characterized in that it is installed upward with respect to the air passage. 5. The method according to claim 4,
The first light source unit includes a heat dissipation case unit for fixing internal components and performing a heat dissipation function, a cooling unit discharging heat generated from the component, a light emitting unit emitting infrared rays of a first wavelength region, and emission from the light emitting unit A device for measuring fine dust and airborne microorganisms using multiple light sources, characterized in that it consists of a condensing lens that condenses the light and converts it into parallel light, and a filter that allows only light in a predetermined wavelength region to pass from the light emitting unit. The method according to claim 1,
The first wavelength region is an apparatus for measuring fine dust and airborne microorganisms using multiple light sources, characterized in that the wavelength band is 620 to 650 nm. 6. The method of claim 5,
The first light collecting unit includes a heat dissipation case unit for fixing internal components and performing a heat dissipation function, a filter for allowing only the first wavelength region of scattered light scattered from fine dust to pass through, and a light collecting unit for focusing the scattered light passing through the filter. An apparatus for measuring fine dust and airborne microorganisms using multiple light sources, characterized in that it consists of a lens and a light receiving element that receives light introduced through the condensing lens and processes the signal. The method according to claim 1,
The microorganism measuring means irradiates a light source in the infrared region onto the air passage of the main body, but at least two light source units for irradiating light sources of different wavelength regions, and the floating microorganisms captured by the light irradiated from the light source unit are absorbed or At least two light collecting units for receiving self-emitted light, a collecting unit for collecting airborne microorganisms on the air passage using a pressure difference, and the light irradiated from the light source unit is transmitted to the collecting unit and transmitted through the collecting unit An apparatus for measuring fine dust and airborne microorganisms using multiple light sources, characterized in that it includes at least one dump unit that provides a path for some light to move. 9. The method of claim 8,
The plurality of light sources includes a second light source for irradiating light into a second wavelength region (400 to 410 nm), and a third light source for irradiating light into a third wavelength region (340 to 365 nm) or a fourth wavelength region (255 to 275 nm). A device for measuring fine dust and airborne microorganisms using multiple light sources, characterized in that it is a light source unit. 9. The method of claim 8,
The light condensing unit includes a heat dissipation case unit that fixes internal components and performs a heat dissipation function, and one wavelength of 275 to 285 nm, 440 to 460 nm, and 510 to 570 nm among the wavelength ranges of light emitted by the microorganisms collected in the collecting unit Multiple filters, characterized in that it consists of a plurality of filters that pass only a signal in the region, a condensing lens for condensing the scattered light passing through the filter, and a light receiving element for receiving and signal processing the light entering through the condensing lens A device for measuring fine dust and airborne microorganisms using a light source. The method according to claim 1,
The microorganism measuring means irradiates to multiple wavelength regions using multiple light sources when measuring microorganisms, but sequentially provides a narrow wavelength band from a high wavelength to a low wavelength to sequentially provide amino acids (Phenylalanine) contained in the floating microorganisms (Bioaerosol) ), tyrosine, tryptophan, NADH, NADPH, and flavin are each configured to receive complex energy that can be absorbed or self-released. Measurement of fine dust and airborne microorganisms using multiple light sources Device. 9. The method of claim 8,
An apparatus for measuring fine dust and airborne microorganisms using multiple light sources, characterized in that a micropump is installed in the outlet hole of the main body at the lower end of the collecting unit. 9. The method of claim 8,
The collecting unit is a fine dust and airborne microorganism measuring device using a multi-light source, characterized in that the non-fluorescent filter and a porous filter. 6. The method of claim 5,
The first beam dump part is characterized in that it consists of an insertion part protruding from the center, and a dump part formed in the insertion part and communicated with the air flow path and through which light enters is narrow enough not to form scattered light and widens toward the inside. A device for measuring fine dust and airborne microorganisms using multiple light sources. The method according to claim 1,
The microorganism measuring means irradiates a light source in the infrared region onto the air passage of the main body, but at least two light source units for irradiating light sources of different wavelength regions, and the floating microorganisms captured by the light irradiated from the light source unit are absorbed or At least two light collecting units for receiving self-emitted light, a collecting unit installed parallel to the inner surface of the air path of the main body and collecting airborne microorganisms on the air path by an electric dust collecting method, and the light irradiated from the light source unit At least one or more dump parts that are transmitted to the collecting unit and provide a path so that some of the light passing through the collecting unit can move, and installed in the main body so that the electrode is directed to the inside of the air flow path, and corona discharges to the collecting unit A device for measuring fine dust and airborne microorganisms using multiple light sources, characterized in that it includes a high voltage generator for generating 16. The method of claim 15,
The collecting part is composed of a support part protruding to the front, a curved part formed at an end of the support part, and a collection filter attached to the curved part, wherein the curved part is configured to coincide with the inside of the air flow path. A device for measuring fine dust and airborne microorganisms using a light source. 16. The method of claim 15,
The high voltage generating unit is a device for measuring fine dust and airborne microorganisms using multiple light sources, characterized in that it includes a needle or brush type high voltage electrode and a ground electrode. The method according to claim 1,
The microorganism measuring means irradiates a light source in the infrared region onto the air passage of the main body, but at least two light source units for irradiating light sources of different wavelength regions, and the floating microorganisms captured by the light irradiated from the light source unit are absorbed or At least two light collecting units for receiving self-emitted light, a collecting unit installed horizontally on the air flow path to collect airborne microorganisms, and the light irradiated from the light source unit is transmitted to the collecting unit and transmitted through the collecting unit Fine dust and floating particles using multiple light sources, characterized in that it consists of at least one dump unit that provides a path so that some light can move, and a high voltage generator that collects microorganisms in an electrostatic precipitation method on the upper end of the collecting unit. Microbial measuring device. The method according to claim 1,
The apparatus for measuring fine dust and airborne microorganisms using a plurality of light sources, characterized in that the main body is configured to separate or combine the fine dust measuring means and the microorganism measuring means. The method according to claim 1,
Fine dust using multiple light sources, characterized in that the light source unit, the light collecting unit, the beam dump unit, and the dust collecting unit constituting the fine dust measuring means and the microorganism measuring unit are modularized and mounted or separated from the mounting hole and the mounting unit of the main body. and a device for measuring airborne microorganisms.

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