Air handling system with integrated air treatment

Patent metadata

Field	Value
Publication number	US-11608998-B2
Application number	US-202016904222-A
Country	US
Kind code	B2
Filing date	Jun 17, 2020
Priority date	Sep 24, 2012
Publication date	Mar 21, 2023
Grant date	Mar 21, 2023

Abstract

Embodiments of the present disclosure include methods and systems of circulating air in an enclosed environment. In such embodiments, the system may comprise an air handling unit (AHU), the AHU including an indoor air inlet to receive an indoor airflow from the enclosed environment and an indoor air outlet to expel the indoor airflow, a conditioning element arranged between the inlet and the outlet configured to at least heat or cool the indoor airflow as it flows thereover, one or more fan units arranged between the inlet and the outlet configured to provide velocity to the indoor airflow, and an air treatment assembly (ATA) arranged within or proximate the AHU, the ATA including an air inlet configured to receive a portion of the indoor airflow received by the AHU indoor air inlet.

First claim

What is claimed is:

1. An air management system for circulating air in an enclosed environment, comprising:
an air handling unit (AHU), the AHU including:
an indoor air inlet (AHU inlet) to receive an indoor airflow from the enclosed environment;
an indoor air outlet (AHU outlet) to expel the indoor airflow;
and
an outdoor air inlet (AHU outdoor air inlet);

a conditioning element configured to at least heat or cool the indoor airflow;
one or more fan units configured to provide velocity to the indoor airflow; and
an air treatment assembly (ATA) arranged within or proximate the AHU, and including:
a first ATA outlet configured to expel an airflow from the ATA to an external environment;
an air inlet (ATA air inlet) configured to receive at least a portion of the indoor airflow received by the AHU inlet,
a regenerable adsorbent material configured to treat the received indoor airflow by adsorbing at least one gaseous contaminant contained in the received indoor airflow,
and
a second ATA outlet for expelling the air treated by the adsorbent material back into indoor airflow;

wherein the one or more fans are located downstream from the conditioning element, and:
the ATA inlet is arranged downstream from the AHU inlet, and the second ATA outlet is arranged downstream from the ATA inlet and upstream from the conditioning element;
the ATA inlet is arranged downstream from the one or more fans, and the second ATA outlet is arranged downstream from the ATA inlet;
the second ATA outlet is arranged downstream from the AHU inlet and upstream from the conditioning element, and the ATA inlet is arranged downstream from the second ATA outlet and downstream from the one or more fans;
the second ATA outlet is arranged upstream from the conditioning element, and the ATA inlet is arranged downstream from the conditioning element and upstream from the one or more fans;
or
the ATA inlet is arranged upstream from the one or more fans.

2. The system according to claim 1 , wherein the conditioning element is configured to receive the indoor airflow for cooling thereof prior to entering the ATA inlet.

3. The system according to claim 1 , wherein the indoor air flows through the conditioning element prior to entering the ATA inlet and following exiting the second ATA outlet the indoor air flows again through the conditioning element.

4. The system according to claim 1 , wherein the one or more fans are located downstream from the conditioning element, the second ATA outlet is arranged upstream from the one or more fans and the ATA inlet is arranged downstream from the one or more fans.

5. The system according to claim 1 , wherein the AHU includes a first housing and the ATA includes a second housing.

6. The system according to claim 5 , wherein the second housing is arranged outside the first housing.

7. The system according to claim 1 , wherein the AHU and the ATA are configured within separate housings, with one housing within the other housing.

8. The system according to claim 1 , wherein the ATA includes a purging airflow inlet and a purging airflow outlet, configured to direct a purging airflow over and/or through the adsorbent material to release the at least one gaseous contaminant previously adsorbed by the adsorbent material to regenerate the adsorbent material.

9. The system according to claim 8 , wherein the purging airflow is either directly or indirectly heated by at least one of, a heat pump, a gas furnace, solar heat, an electrical coil, and hot water.

10. An air management system for circulating air in an enclosed environment, comprising:
an air handling unit (AHU), the AHU including:
an indoor air inlet to receive an indoor airflow from the enclosed environment;
an indoor air outlet to expel the indoor airflow;
and
an outdoor air inlet;

a conditioning element configured to at least heat or cool the indoor airflow;
one or more fan units configured to provide velocity to the indoor airflow; and
an air treatment assembly (ATA) arranged within or proximate the AHU, and including:
an outlet configured to expel an airflow from the ATA to an external environment;
an air inlet configured to receive at least a portion of the indoor airflow received by the AHU indoor air inlet,
a regenerable adsorbent material configured to treat the received indoor airflow by adsorbing at least one gaseous contaminant contained in the received indoor airflow,
and
an outlet for expelling the air treated by the adsorbent material back into indoor airflow;

wherein the one or more fan units:
are configured to direct indoor airflow into the ATA without requiring a booster fan associated with the ATA; and/or
are located downstream from the conditioning element, the ATA outlet is arranged upstream from the conditioning element and the ATA inlet is arranged downstream from the one or more fans.

11. The system according to claim 10 , wherein the conditioning element is configured to receive the indoor airflow for cooling thereof prior to entering the ATA inlet.

12. The system according to claim 10 , wherein the indoor air flows through the conditioning element prior to entering the ATA inlet and following exiting the second ATA outlet, the indoor air flows again through the conditioning element.

13. The system according to claim 10 , wherein the one or more fans are located downstream from the conditioning element, the second ATA outlet is arranged upstream from the one or more fans and the ATA inlet is arranged downstream from the one or more fans.

14. The system according to claim 10 , wherein the AHU includes a first housing and the ATA includes a second housing.

15. The system according to claim 14 , wherein the second housing is arranged outside the first housing.

16. The system according to claim 10 , wherein the AHU and the ATA are configured within separate housings, with one housing within the other housing.

17. The system according to claim 10 , wherein the ATA includes a purging airflow inlet and a purging airflow outlet, configured to direct a purging airflow over and/or through the adsorbent material to release the at least one gaseous contaminant previously adsorbed by the adsorbent material to regenerate the adsorbent material.

18. The system according to claim 17 , wherein the purging airflow is either directly or indirectly heated by at least one of, a heat pump, a gas furnace, solar heat, an electrical coil, and hot water.

19. An air management system for circulating air in an enclosed environment, comprising:
an air handling unit (AHU), the AHU including:
an indoor air inlet (AHU inlet) to receive an indoor airflow from the enclosed environment;
an indoor air outlet (AHU outlet) to expel the indoor airflow;
and
an outdoor air inlet;

a conditioning element configured to at least heat or cool the indoor airflow;
one or more fan units configured to provide velocity to the indoor airflow; and
an air treatment assembly (ATA) arranged within or proximate the AHU, and including:
a first ATA outlet configured to expel an airflow from the ATA to an external environment;
an air inlet (ATA air inlet) configured to receive at least a portion of the indoor airflow received by the AHU inlet,
a regenerable adsorbent material configured to treat the received indoor airflow by adsorbing at least one gaseous contaminant contained in the received indoor airflow,
and
a second ATA outlet for expelling the air treated by the adsorbent material back into indoor airflow;

wherein the one or more fans are loc

Assignees

• Enverid Systems Inc

Inventors

• Meirav Udi
• Biran Israel

Classifications

• F24F3/16 Primary

  by purification, e.g. by filtering; by sterilisation; by ozonisation · CPC title

• F24F7/065

  fan combined with single duct; mounting arrangements of a fan in a duct · CPC title

• F24F11/74

  for controlling air flow rate or air velocity · CPC title

• F24F3/0442

  with volume control at a constant temperature · CPC title

• F24F2110/50

  Air quality properties · CPC title