The utility model relates to the technical field of
flame monitoring devices, and discloses a
flame monitoring device adapting to a severe environment, which comprises a
boiler furnace, a novel
tungsten-
cobalt alloy protective sleeve is fixedly mounted on one side of the
boiler furnace, and high-precision pressure gauges are fixedly mounted at two ends of the surface of the novel
tungsten-
cobalt alloy protective sleeve. According to the utility model, through the arrangement of the novel
tungsten-
cobalt alloy protective sleeve, the inside of the sleeve is wear-resistant, pressure-resistant and high-temperature-resistant, through the arrangement of the high-precision pressure gauge, the effects of monitoring the pressure of a cooling and purging air source in situ, accurately measuring and truly reflecting the actual pressure value of the air source are achieved, and through the arrangement of the intelligent alarm
differential pressure switch, the pressure of the cooling and purging air source can be monitored. Therefore, when the air source passes through the efficient
air filter and the
pressure difference value of the air sources on the two sides exceeds a specified value, an alarm is given in time, maintenance personnel are reminded to replace the
filter element in time, and the situation that due to blockage of the
filter element, the pressure of the air source behind the efficient
air filter is low, and safe work of a
flame monitoring device is affected can be prevented.