The conventional leakage-searching method is to find the leak points with stoppage of half condenser

having larger blindness

and being unpractical.For this

a mathematic model for judging the zone

in which the leak points exist

has been established

and the leakage-seaching facility being retrofitted.According to the method of firstly judjing the water chamber

in which the leak-point is located

nextly locking out the leaking row of tubes

and finally determining the leak point

thus

the leak point can rapidly be discovered.The leakage-searching of titanium tubes used in condenser of supercritical 2×600 MW units in Jinghai Power Generation Co Ltd proves that the location of leak-point can accurately and rapidly be found out by using the said method

being worth to be popularized to other thermal power plants.