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

Patent metadata

Field	Value
Publication number	US-11465097-B2
Application number	US-201916680966-A
Country	US
Kind code	B2
Filing date	Nov 12, 2019
Priority date	Dec 28, 2018
Publication date	Oct 11, 2022
Grant date	Oct 11, 2022

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. A dehumidification mechanism for an appliance comprising:
a blower that delivers humid process air along an airflow path;
a drum positioned along the airflow path;
a condensing apparatus that dehumidifies the humid process air to define dehumidified process air;
a nanopore membrane having a plurality of nanopores and that is disposed in a tube shape that defines the airflow path within the condensing apparatus, wherein the humid process air is delivered along the nanopore membrane and 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, 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;
a porous material that extends around the tube shape of the nanopore membrane;
an outer housing that extends around the nanopore membrane and the porous material, wherein the porous material is positioned between the nanopore membrane and the outer housing to form a layered structure of the condensing apparatus; 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 tube shape of the nanopore membrane, wherein the suction partially draws the condensate through the plurality of nanopores.

2. The dehumidification mechanism of claim 1 , wherein each nanopore within the airflow path includes an inner diameter that ranges from approximately 10 nanometers to approximately 100 nanometers.

3. The dehumidification mechanism of claim 1 , wherein the condensing apparatus includes a plurality of nanopore conduits that include the nanopore membrane.

4. The dehumidification mechanism of claim 1 , 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.

5. A dehumidification mechanism for an appliance comprising:
a blower that delivers humid process air along an airflow path;
a drum positioned along the airflow path;
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 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, wherein the humid process air is delivered along the nanopore membrane, wherein the 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, and wherein 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;
a rigid outer housing that extends around the nanopore membrane and the porous material, wherein the porous material is contained between the nanopore membrane and the rigid outer housing; and
a pump attached to the rigid outer housing and that operates to suction the condensate from the condensing apparatus to a condensate collection area, wherein the pump generates the suction that partially draws the condensate through the plurality of nanopores.

6. The dehumidification mechanism of claim 5 , wherein the condensate removed by the nanopore membrane is delivered away from the airflow path and to a condensate collection area within the appliance.

7. The dehumidification mechanism of claim 6 , wherein each nanopore within the airflow path includes an inner diameter that ranges from approximately 10 nanometers to approximately 100 nanometers.

8. The dehumidification mechanism of claim 5 , wherein the condensing apparatus includes a plurality of tubes that include the nanopore membrane.

9. A dehumidification mechanism for an appliance comprising:
a blower that delivers humid process air along an airflow path;
a drum positioned along the airflow path;
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 and the 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 plurality of dehumidification tubes and the condensing apparatus, and wherein 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.

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

Assignees

• Whirlpool Co

Inventors

• Hartnett Christopher A

Classifications

• B01D53/268 Primary

  by diffusion · CPC title

• F24F2003/1435

  comprising semi-permeable membrane · CPC title

• B01D53/227

  in parallel connexion · CPC title

• D06F58/24 Primary

  Condensing arrangements · CPC title

• D06F58/206

  Heat pump arrangements · CPC title