Devices and methods for landfill gas well monitoring and control
US10144043B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2015 |
| Grant date | Dec 4, 2018 |
| Priority date | — |
| Expiry date | Jul 21, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/80
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present disclosure relates to a self-regulating, landfill well control system for automatically controlling a flow of landfill gas (LFG) through a wellhead associated with a landfill well at a landfill. The system has a combination unit operably associated with the wellhead, with a valve actuator, a flow measurement element and a controller. The valve actuator controls a LFG flow control valve, to thus control an LFG flow through the wellhead. The flow measurement element produces differential pressures proportional to a LFG flow rate. The controller controls the valve actuator and, based on data obtained using the flow measurement element, adjusts a setting of the LFG flow control valve to obtain a specific control point setting, and automatically maintains the control point setting thereafter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.