Temperature abnormity warning device for fuel gas-steam combined cycle unit

The utility model discloses a temperature abnormity warning device for a fuel gas-steam combined cycle unit. The temperature abnormity warning device comprises a temperature sensor and a display, and the output terminal of the temperature sensor is electrically connected with the display through an analog-to-digital converter; the temperature abnormity warning device is characterized in that the output terminal of the temperature sensor is electrically connected with the input terminal of a speed limiter set, the speed limiter set is composed of a plurality of speed limiters which are connected in parallel; the output terminal of the speed limiter set is connected with an alarm set; the alarm set comprises an audible and visual alarm, an audible alarm and a visual alarm; and each speed limiter of the speed limiter set is at least connected with one alarm. By employing the above technical scheme, a plurality of speed limiters and a plurality of alarms are added on the basis of an original device, the speed limiters can carry out filtering processing to temperature signals acquired by the temperature sensor, at the same time, by employing the plurality of speed limiters, the rate of change of the temperature signal value can be warned in a sectionalized manner.