Filter element and gas purification device comprising a filter element
AssigneeKoninklijke Philips N.V.
InventorsShuang Chen, Weizhong Chen
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Abstract
A filter element (1) for use in a gas purification device (100) is disclosed. It comprises a substrate (10) and a filter layer (20) covering an exterior surface of the substrate (10). The substrate (10) comprises material for containing chemicals (30) effective to remove gas pollutants from a gas. The material of the filter layer (20) is hydrophilic to adsorb liquid solution adsorbents effective in removing gas pollutants from a gas, and the exterior surface of the substrate (10) covered by the filter layer (20) is hydrophobic.
Claims20
A filter element for use in a gas purification device, comprising:
- a substrate;
- and
- a filter layer covering an exterior surface of the substrate, wherein the filter layer comprises material for containing chemicals effective to remove gas pollutants from a gas, wherein the material of the filter layer is hydrophilic to adsorb liquid solution adsorbents effective in removing gas pollutants from a gas, further wherein the material of the filter layer comprises Tris(hydroxylmethyl)amino-methane and wherein the exterior surface of the substrate covered by the filter layer is hydrophobic.
A filter element for use in a gas purification device, comprising:
- a substrate;
- and
- a filter layer covering an exterior surface of the substrate, wherein the filter layer comprises material for containing chemicals effective to remove gas pollutants from a gas, wherein the material of the filter layer is hydrophilic to adsorb liquid solution adsorbents effective in removing gas pollutants from a gas, wherein the exterior surface of the substrate covered by the filter layer is hydrophobic, and further wherein the substrate comprises a hydrophilic material such that only its exterior surface is hydrophobic.
A device for purifying a gas, comprising:
- a filter element that comprises a substrate and a filter layer covering an exterior surface of the substrate, wherein the filter layer comprises material for containing chemicals effective to remove gas pollutants from a gas, wherein the material of the filter layer is hydrophilic to adsorb liquid solution adsorbents effective in removing gas pollutants from a gas, and wherein the exterior surface of the substrate covered by the filter layer is hydrophobic;
- means for realizing a flow of the gas along the filter layer of the filter element during operation;
- and
- means for indicating information regarding an effective lifetime of the filter layer of the filter element to a user.
A device for purifying a gas, comprising:
- a filter element that comprises a substrate and a filter layer covering an exterior surface of the substrate, wherein the filter layer comprises material for containing chemicals effective to remove gas pollutants from a gas, wherein the material of the filter layer is hydrophilic to adsorb liquid solution adsorbents effective in removing gas pollutants from a gas, and wherein the exterior surface of the substrate covered by the filter layer is hydrophobic;
- means for realizing a flow of the gas along the filter layer of the filter element during operation;
- and
- a spraying arrangement for spraying a liquid on at least a portion of the filter layer of the filter element.
Dependencies are inferred from the claim text.