METHANE MONITORING SYSTEM
First Claim
1. A device for monitoring methane gas levels within a landfill gas system comprising:
- a weatherproof housing having a landfill gas inlet, a sampling chamber having a sampled gas vent leading outside of said housing, and at least a first access panel, wherein said housing contains;
a desccient filter having its inlet in fluid communication with said landfill gas inlet;
a flow restrictor connected between the outlet of said desccient filter and an opening into said sampling chamber; and
a sealed enclosure containing a methane meter, wherein at least a portion of the methane meter extends into said sampling chamber.
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Accused Products
Abstract
A methane monitoring system including a filter, a flow restrictor and a methane level detector is disclosed. The sensor system draws gas from a piping system through a sample line into the filter. The filter removes moisture vapor from the gas, with the remaining gas passing into a flow meter. The flow meter regulates the gas pressure for the gas output to a sensing chamber containing the methane meter. The methane meter operates to sample the methane level in the gas and provides an electrical signal which can be output to a recording device such as a flash memory card or to real time remote reporting via direct connection or a wireless signal such as a cell phone, radio or satellite telecom system. Landfill gas which is introduced into the sensing chamber is then exhausted through vent slots in the housing.
44 Citations
20 Claims
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1. A device for monitoring methane gas levels within a landfill gas system comprising:
a weatherproof housing having a landfill gas inlet, a sampling chamber having a sampled gas vent leading outside of said housing, and at least a first access panel, wherein said housing contains; a desccient filter having its inlet in fluid communication with said landfill gas inlet; a flow restrictor connected between the outlet of said desccient filter and an opening into said sampling chamber; and a sealed enclosure containing a methane meter, wherein at least a portion of the methane meter extends into said sampling chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14)
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13. The device of claim 13, wherein said housing includes a second access panel for providing for the removal and replacement of said desiccant filter from said housing.
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15. A device for monitoring methane gas levels within a landfill gas system comprising:
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a weatherproof housing having a landfill system gas inlet and at least four separate compartments therein, including; a first compartment contains a desiccant filter; a second compartment containing a flow regulator; a third compartment containing a methane meter; and a fourth compartment containing at least one probe of said methane meter and a vent outside said housing; wherein said landfill gas system inlet, said desiccant filter, said flow regulator, and an outlet into said fourth compartment are all connected in series and in fluid communication. - View Dependent Claims (16, 17, 18, 19)
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20. A device for monitoring methane gas levels within a landfill gas system comprising:
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a weatherproof housing having a landfill gas inlet, a sampling chamber having a sampled gas vent leading outside of said housing, and a first and second access panel, wherein said housing contains; a replaceable particulate filter having its inlet connected to said landfill gas inlet; a replaceable desiccant filter having its inlet connected to the outlet of said particulate filter; a flow restrictor connected between the outlet of said desccient filter and an opening into said sampling chamber; and a replaceable sealed enclosure containing a methane meter, wherein at least a portion of the methane meter extends into said sampling chamber, wherein said first access panel provides access to said replaceable desiccant filter and said second access panel provides access to said replaceable sealed enclosure.
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Specification