The invention discloses a thermal power
generating unit heater terminal difference self-adaptive adjusting method and device. The adjusting device comprises a temperature measuring module I, a pressure measuring module, a temperature measuring module II, a temperature measuring module III, a
water level measuring module, a controller and a heater drain adjusting valve, the temperature measuring module I, the pressure measuring module, the temperature measuring module II, the temperature measuring module III and the
water level measuring module are electrically connected with the
signal receiving end of the controller, the control end of the controller is electrically connected with the heater drain adjusting valve, and the human-computer interaction end of the controller is electrically connected with a touch screen. According to the thermal power
generating unit heater terminal difference self-adaptive adjusting method and device, upper-lower terminal difference of the high-pressure heater is collected, the terminal difference is introduced into
water level adjusting control of the high-pressure heater, and the automatic adjustment of the terminal difference of the heater of the unit in a wide load range is realized; weighting comparison is performed on the respective values to obtain an terminal difference index which mainly influences the economical efficiency of the high-pressure heater, then the terminal difference index is controlled, and undisturbed switching can be realized.