Moisture removing device for a laundry appliance that incorporates a nanopore membrane

Patent metadata

Field	Value
Publication number	US-11850549-B2
Application number	US-202217894415-A
Country	US
Kind code	B2
Filing date	Aug 24, 2022
Priority date	Dec 28, 2018
Publication date	Dec 26, 2023
Grant date	Dec 26, 2023

Abstract

A dehumidification mechanism for an appliance includes a blower that delivers humid process air along an airflow path. A drum is positioned along the airflow path. A condensing apparatus dehumidifies the humid air to define dehumidified air. A membrane has a plurality of nanopores that define a portion of the airflow path within the condensing apparatus. The humid air is delivered along the membrane having the plurality of nanopores and the nanopores operate through capillary condensation to dehumidify the humid air and separate condensate away from the humid air to define the dehumidified air. The condensate removed by the nanopore membrane is delivered away from the airflow path and to a condensate collection area within the appliance.

First claim

What is claimed is:

1. An appliance comprising:
a drum positioned within a cabinet;
a blower that delivers humid process air along an airflow path, wherein the airflow path includes a processing space defined within the drum;
a condensing apparatus that dehumidifies the humid process air to define dehumidified process air;
a nanopore membrane disposed in at least one tube shape that defines a section of the airflow path within the condensing apparatus, wherein the humid process air is delivered along the nanopore membrane and the nanopore membrane operates through capillary condensation to dehumidify the humid process air and separate condensate away from the humid process air to define the dehumidified process air, and wherein the condensate removed by the nanopore membrane is delivered away from the airflow path and to a condensate collection area within the appliance;
an outer housing that extends around the nanopore membrane; and
a pump that operates to suction the condensate from the outer housing of the condensing apparatus to the condensate collection area, wherein the pump generates the suction substantially equally along a surface of the at least one tube shape of the nanopore membrane, wherein the suction partially draws the condensate through the nanopore membrane.

2. The appliance of claim 1 , further comprising:
a porous material that is disposed between the at least one tube shape of the nanopore membrane and the outer housing.

3. The appliance of claim 2 , wherein the porous material is positioned between the nanopore membrane and the outer housing to form a layered structure of the condensing apparatus.

4. The appliance of claim 3 , wherein the nanopore membrane incudes a plurality of nanopores that extend between the airflow path and the porous material.

5. The appliance of claim 4 , wherein each nanopore of the plurality of nanopores within the airflow path includes an inner diameter that ranges from approximately 10 nanometers to approximately 100 nanometers.

6. The appliance of claim 1 , wherein the at least one tube shape defines a plurality of nanopore conduits, wherein each nanopore conduit of the plurality of nanopore conduits includes a portion of the nanopore membrane.

7. The appliance of claim 4 , wherein the condensing apparatus includes a cooling system that absorbs latent heat generated within the nanopore membrane during an occurrence of the capillary condensation within the plurality of nanopores.

8. The appliance of claim 1 , wherein the drum rotationally operates within the cabinet.

9. An appliance comprising:
a processing space disposed within an outer cabinet for treating articles;
a blower that delivers process air along an airflow path that includes the processing space; a condensing apparatus that dehumidifies humid process air from the processing space to define dehumidified process air, wherein the dehumidified process air is recirculated back to the processing space;
a nanopore membrane having a plurality of nanopores that define a portion of the airflow path within the condensing apparatus, wherein the nanopore membrane is contained within at least one tube through which the humid process air is directed as it moves through the condensing apparatus and along the nanopore membrane, wherein the plurality of nanopores operate through capillary condensation to dehumidify the humid process air and separate condensate away from the humid process air to define the dehumidified process air leaving the condensing apparatus;
a rigid outer housing that extends around the nanopore membrane; and
a pump attached to the rigid outer housing and that operates to suction the condensate from the condensing apparatus and through the plurality of nanopores.

10. The appliance of claim 9 , wherein heat generated by the capillary condensation within the nanopore membrane is transferred to the dehumidified process air.

11. The appliance of claim 9 , wherein the pump operates to draw the condensate from the plurality of nanopores and to a condensate collection area.

12. The appliance of claim 9 , wherein the condensate removed by the nanopore membrane is delivered away from the airflow path and to a condensate collection area within the appliance.

13. The appliance of claim 9 , wherein each nanopore of the plurality of nanopores within the airflow path includes an inner diameter that ranges from approximately 10 nanometers to approximately 100 nanometers.

14. The appliance of claim 9 , wherein the condensing apparatus includes a plurality of tubes that include the nanopore membrane.

15. The appliance of claim 9 , further comprising:
a porous material that extends around the nanopore membrane, wherein the porous material is contained between the nanopore membrane and the rigid outer housing.

16. The appliance of claim 9 , wherein the processing space is defined within a drum that rotationally operates within the outer cabinet.

17. An appliance comprising:
a cabinet having a processing space defined therein;
a blower that delivers humid process air along an airflow path that includes the processing space;
a condensing apparatus that dehumidifies the humid process air to define dehumidified process air;
a nanopore membrane having a plurality of nanopores that define a plurality of dehumidification tubes within the condensing apparatus, wherein the plurality of dehumidification tubes each receive a portion of the humid process air, wherein the humid process air is delivered through the plurality of dehumidification tubes having the plurality of nanopores that operate through capillary condensation to dehumidify the humid process air and separate condensate away from the humid process air to define the dehumidified process air leaving the plurality of dehumidification tubes and the condensing apparatus, and wherein the condensate captured by the plurality of dehumidification tubes is collected in a condensate collection area outside of the condensing apparatus, and heat generated by the capillary condensation within the nanopore membrane is transferred to the dehumidified process air;
a porous material that extends around the nanopore membrane;
an outer housing that extends around the nanopore membrane and the porous material, wherein the porous material is contained between the nanopore membrane and the outer housing.

18. The appliance of claim 17 , wherein each nanopore of the plurality of nanopores within the airflow path includes an inner diameter that ranges from approximately 10 nanometers to approximately 100 nanometers.

19. The appliance of claim 17 , wherein the processing space is defined within a drum that rotationally operates within the cabinet.

20. The appliance of claim 17 , further comprising:
a pump attached to the outer housing and that operates to suction the condensate from the condensing apparatus and through the plurality of nanopores and to the condensate collection area.

Assignees

• Whirlpool Co

Inventors

• Hartnett Christopher A

Classifications

• B01D53/268 Primary

  by diffusion · CPC title

• B01D53/227

  in parallel connexion · CPC title

• B01D53/265

  by refrigeration (condensation) · CPC title

• D06F58/04

  Details  (controlling or regulating devices D06F34/00) · CPC title

• D06F58/24 Primary

  Condensing arrangements · CPC title