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US 8,707,759 B2Granted
Flue gas sensor with water barrier member
AssigneeCarrier Corporation
InventorsMarc W. Roland, Daniel J. Dempsey
Life of this patent
Estimating the term…
Abstract
A flue gas sensor of a combustion device is disclosed. The flue gas sensor may include a housing and a gas detector disposed within the housing, wherein the gas detector detects or measures at least one gas in a flue gas stream of the combustion device. The housing may also include a water barrier member through which the at least one gas comes into contact with the gas detector.
Claims13
A flue gas sensor of a combustion device, comprising:
- a housing comprising a water barrier member;
- a gas detector disposed within the housing, the gas detector detecting or measuring at least one gas in a flue gas stream of the combustion device, the at least one gas coming into contact with the gas detector through the water barrier member;
- wherein the water barrier member comprises a membrane that is at least substantially permeable to the at least one gas and at least substantially impermeable to water or water vapor in the flue gas stream;
- wherein the water barrier member further comprises a filter layer that is at least substantially impermeable to hydrocarbons in the flue gas stream;
- and
- wherein the membrane is positioned between the filter layer and a detection chamber.
3 more elements
A method for monitoring at least one gas in a flue gas stream of a combustion device, the method comprising:
- providing a flue gas sensor in direct contact with the flue gas stream, the flue gas sensor comprising a housing enclosing a gas detector for the at least one gas, the housing comprising a water barrier member through which the at least one gas comes into contact with the gas detector;
- allowing the gas detector to detect the at least one gas in the flue gas stream;
- wherein the water barrier member comprises a membrane that is at least substantially permeable to the at least one gas and at least substantially impermeable to water or water vapor in the flue gas stream;
- wherein the water barrier member further comprises a filter layer that is at least substantially impermeable to hydrocarbons in the flue gas stream;
- and
- wherein the membrane is positioned between the filter layer and a detection chamber.
3 more elements
Dependencies are inferred from the claim text.