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    • 3. 发明授权
    • Systems and methods for controlling gas flow from landfills
    • 控制填埋场气体流量的系统和方法
    • US06169962A
    • 2001-01-02
    • US08717959
    • 1996-09-23
    • Ronald L. BrookshireDonald BrookshireTravis BrookshireSeyed Mohammed Reza Kalantar-NejadJames Joseph Beach
    • Ronald L. BrookshireDonald BrookshireTravis BrookshireSeyed Mohammed Reza Kalantar-NejadJames Joseph Beach
    • G06F1900
    • B09B1/00G01F1/36G01F1/42G01N33/0022Y02W30/38
    • An automated, computer-controlled landfill gas recovery system includes a number of equipment vaults, with each vault being associated with one or more wells in the landfill. The wells are in fluid communication with a piping system located in the associated vault, with the piping system including a main pneumatic control valve that can be adjusted to establish gas flow rate through the well or wells. Also, each vault includes a shielded enclosure that holds sensors and a local vault controller for generating signals representative of flow rate, vacuum, and oxygen/methane/carbon dioxide content of the gas being extracted from the well. These signals are sent to a remote computer. Based on the signals generated by the sensors, the computer communicates with each vault controller to control the pneumatic control valve of each vault to establish a gas flow rate from the associated well as appropriate to accord with one of several user-selected process control regimes.
    • 自动计算机控制的垃圾填埋气回收系统包括多个设备保险库,每个保险库与填埋场中的一个或多个井相关联。 井与位于相关联的拱顶中的管道系统流体连通,管道系统包括主气动控制阀,其可以被调节以建立通过井或井的气体流速。 此外,每个保险库包括保护传感器和本地保险库控制器的屏蔽外壳,用于产生代表从井中提取的气体的流速,真空和氧/甲烷/二氧​​化碳含量的信号。 这些信号被发送到远程计算机。 基于由传感器产生的信号,计算机与每个保险库控制器通信以控制每个保险库的气动控制阀,以根据若干用户选择的过程控制方案之一适当地建立来自相关联的井的气体流速。
    • 5. 发明授权
    • Flow metering device for landfill gas extraction well
    • 垃圾填埋气提取井流量计量装置
    • US5616841A
    • 1997-04-01
    • US646039
    • 1996-05-07
    • Ronald L. Brookshire
    • Ronald L. Brookshire
    • B09B1/00G01F1/36G01F1/42F15D1/02F16L55/10G01F1/34G01N7/14
    • B09B1/00G01F1/36G01F1/42Y02W30/35
    • A metering pipe for a landfill well includes an upstream segment and a downstream segment. A coupling having an orifice plate positioned therein surroundingly engages both segments. Specifically, the segments are advanced into the coupling toward each other, on opposite sides of the orifice plate from each other. Upstream and downstream pressure ports are respectively formed through the walls of the upstream and downstream segments and the coupling adjacent the orifice plate. The difference in pressure at the ports is correlated to a flow rate through the pipe. To ensure that all gas flowing through the well also flows through the metering pipe, a compression coupling is disposed between the metering pipe and well. The compression coupling joins the metering pipe to the well and blocks gas flow past the outside of the metering pipe, while permitting the metering pipe to be selectively reciprocated relative to the well.
    • 用于填埋井的计量管包括上游段和下游段。 具有定位在其中的孔板的联接器围绕两个段接合。 具体地说,这些段在孔板的相对侧相互朝向彼此前进到联接器中。 上游和下游压力端口分别通过上游和下游段的壁和邻近孔板的联接件形成。 端口压力的差异与通过管道的流量相关。 为了确保流经井的所有气体也流经计量管,在计量管和井之间设有压缩联轴器。 压缩联接将计量管连接到井,并阻止气流经过计量管的外部,同时允许计量管相对于井选择性地往复运动。