Coal consumption ordering test method based on gap bridge steam leakage rate

The invention discloses a gap bridge steam leakage rate handling method in a coal consumption ordering test. The method comprises steps of: computing a gap bridge steam leakage rate reference value by using the designed gap bridge steam leakage rate of each participated coal consumption ordering steam turbine; supposing a gap bridge steam leakage amount and iteratively computing the gap bridge steam leakage rate predicted by each steam turbine; computing the heat rate of each steam turbine by using the gap bridge steam leakage amount of the last iteration, and using the heat rate of each steam turbine as a coal consumption ordering test result. The coal consumption ordering test method based on the gap bridge steam leakage rate is simple and convenient in process, obvious in energy-saving significance, low in coal consumption ordering test result errors, may reasonably embody the benefits caused by unit energy-saving operation, and promotes the development of the energy-saving operation of a thermal power plant.