Air quality and particulate detection system

CN114441392BActive Publication Date: 2026-08-28CARRIER CORP
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Patent Information

Application Number
CN202111305053.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2020-11-06
Filing Date
2021-11-05
Publication Date
2026-08-28
Estimated Expiration
2041-11-05

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Abstract

An air quality and particulate detection system includes an air quality and particulate detector including a particulate detection chamber in fluid communication with an adjacent air quality component via an orifice; the particulate detection chamber includes a blower adjacent to a particulate filter and a laser source; and the air quality component includes a channel having substantially parallel sides for operatively coupling a HEPA filter adjacent to and substantially parallel to the orifice and for operatively coupling one or more ultraviolet light emitting diodes (LEDs) downstream of the HEPA filter; and an exhaust conduit for returning treated air to a protected area; one or more conduit extensions fluidly connected to the particulate detection chamber, wherein each of the one or more conduit extensions includes one or more sampling points configured to allow air particulates to enter from the protected area into at least one of the one or more conduit extensions.
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Claims

1. An air quality and particulate matter detection system, comprising: An air quality and particulate detector, comprising a particulate detection chamber in fluid communication with an adjacent air quality component via an orifice. The particle detection chamber includes a blower adjacent to the particle filter and the laser source, wherein: The particulate filter is configured to interact with the airflow and air particles and to separate a portion of the air particles from the airflow. The laser source is configured to generate laser light with multiple wavelengths; and The laser source is located adjacent to the sensor, which is configured to detect at least one of the amounts of laser scattering and laser fluorescence in response to the interaction of the laser with air particles. The air quality component includes: A channel having substantially parallel sides is provided for operatively connecting a HEPA filter adjacent to and substantially parallel to the orifice, and for operatively connecting one or more ultraviolet light-emitting diodes (LEDs) downstream of the HEPA filter. An exhaust duct, used to return treated air to the protected area; and One or more catheter extensions fluidly connected to the particulate detection chamber, wherein each of the one or more catheter extensions includes one or more sampling points configured to allow airborne particulates to enter from the protected area into at least one of the one or more catheter extensions.

2. The air quality and particulate detection system of claim 1, further comprising one or more sub-particulate detectors fluidly connected to the air quality and particulate detector via the one or more conduit extensions.

3. The air quality and particulate matter detection system according to claim 1, wherein, The HEPA filter is specified as having a value equal to or greater than MERV 6 and equal to or less than MERV 18.

4. The air quality and particulate matter detection system according to claim 1, wherein, The ultraviolet LED generates light in a wavelength range of 200 nm or greater and 320 nm or less.

5. The air quality and particulate matter detection system according to claim 1, wherein, The blower is located adjacent to an infrared light source, which is configured to generate infrared light; And a sensor configured to detect the infrared characteristics of air particles in response to the interaction of the infrared light with the air particles.

6. The air quality and particulate matter detection system according to claim 5, wherein, The air quality and particulate detector is configured to identify the air particles in response to at least one of the amounts of light scattering and laser fluorescence.

7. The air quality and particulate matter detection system according to claim 6, wherein, The air quality and particulate detector is configured to activate an alarm in response to the identity of the air particles.

8. The air quality and particulate matter detection system according to claim 7, wherein, The air quality and particulate detector is configured to transmit the infrared signature to the air quality and particulate detection system.

9. An air quality and particulate detector, comprising: An air quality and particulate detector, comprising a particulate detection chamber in fluid communication with an adjacent air quality component via an orifice, wherein, The particle detection chamber includes a blower adjacent to the particle filter and the laser source, wherein: The particulate filter is configured to interact with the airflow and air particles and to separate a portion of the air particles from the airflow. The laser source is configured to generate laser light with multiple wavelengths; and The laser source is located adjacent to the sensor, which is configured to detect at least one of the amounts of laser scattering and laser fluorescence in response to the interaction of the laser with air particles. The air quality component includes: a channel having substantially parallel sides for operatively connecting a HEPA filter adjacent to and substantially parallel to the orifice, and for operatively connecting one or more ultraviolet light-emitting diodes (LEDs) upstream of the HEPA filter; and an exhaust duct for returning treated air to the protected area.

10. The air quality and particulate detector according to claim 9, wherein, The HEPA filter is specified as having a value equal to or greater than MERV 6 and equal to or less than MERV 18.

11. The air quality and particulate matter detection system according to claim 9, wherein, The ultraviolet LED generates light in the wavelength range of 200 to 320 nm.

12. A method for operating an air quality and particulate system, the method comprising: Air particles are allowed to enter one or more duct extensions from an airflow in a protected area through one or more sampling points in the airflow, wherein each of the one or more duct extensions begins at a first end and terminates at a second end; The air particles in the airflow are transported from the second end to the particle detection chamber of an air quality and particle detector that is operatively connected to it; Detect the air particles in the particulate detection chamber and separate the air particles from the airflow; The airflow is passed through the particle detection chamber orifice and through a HEPA filter located in an adjacent air quality component; The airflow in the air quality component is treated using ultraviolet germicidal radiation from one or more ultraviolet light-emitting diodes (LEDs); and The airflow is returned to the protected area via an exhaust duct.

13. The method according to claim 12, wherein, The HEPA filter is specified as having a value equal to or greater than MERV 6 and equal to or less than MERV 18.

14. The method according to claim 12, wherein, The one or more LEDs generate light in the wavelength range of 200 to 320 nm.

Citation Information

Patent Citations

  • Air purifier with intelligent sensors and airflow

    US20180154297A1