Methane gas mixer with wide concentration range

• Main Authors: DI XIAOWEI, WANG JUN, WANG XUEJUN, PEI PANDAO, SUN YUTAI, HUANG CHAOHUA, ZHAO XINHONG
• Format: Patent
• Language: Chinese; English
• Published: 20.03.2013
• Subjects: EARTH DRILLING; FIXED CONSTRUCTIONS; MINING; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS

The utility model relates to a methane gas mixer with a wide concentration range, which comprises a mixer body, an air inlet adjusting component, methane gas inlet adjusting devices, methane gas metering devices and a mixture concentration ratio adjusting controller, wherein the mixer body is a cavity with a four-way port; the first port of the mixer body is a low-concentration methane gas inlet; the second port of the mixer body is a high-concentration methane gas inlet; the third port of the mixer body is an air inlet; the forth port of the mixer body is an air outlet; the low-concentration methane gas inlet is connected with a first methane gas inlet adjusting device; the first methane gas inlet adjusting device is connected with a first methane gas metering device; the high-concentration methane gas inlet is connected with a second methane gas inlet adjusting device; the second methane gas inlet adjusting device is connected with a second methane gas metering device; and the first and second methane gas i