The invention discloses a multi-component
waste gas online monitor, and relates to the technical field of
waste gas monitors, the multi-component
waste gas online monitor comprises an outer shell, a detection
assembly and a second
gas transmission assembly, the outer side of the front part of the outer shell is connected with a display screen, the outer side of the top of the outer shell is provided with a gas suction
assembly, and the inner side of the gas suction assembly is connected with a
gas transmission pipe; and a first gas conveying assembly is arranged at the
tail end of the gas conveying
pipe. According to the device, the
rotating disc can be manually shifted to drive the
exhaust pipe to rotate, after the
exhaust pipe rotates, the
exhaust pipe can be connected with different gas conveying pipes, the number of the gas conveying pipes, the number of the first gas conveying assemblies and the number of the communicating pipes are all four, and each gas conveying
pipe is connected with one group of the first gas conveying assemblies and the communicating pipes; the multiple gas conveying channels are arranged in the equipment, other gas conveying channels can be replaced for working before waste gas in one gas conveying channel is pumped away, the use gap of the equipment can be greatly shortened, and the working efficiency of the equipment can be improved.