Device and method for measuring fouling resistance and heat conductivity

The invention relates to a device and a method for measuring fouling resistance and heat conductivity. The device is composed of a constant temperature heating device, containers, a temperature measuring device and a timer, wherein the temperature of the constant temperature heating device is constant at T; a fouling-free container containing a liquid to be heated with the mass of m is put in the constant temperature heating device to be heated; the thermal resistance can be obtained by means of a thermal resistance calculation formula deduced in the invention according to the measured temperature of the liquid to be heated and the time n spent in heating from the initial temperature t1 to the final temperature t2; and another experiment is performed by means of a fouled container to obtain the thermal resistance with fouling; the difference between the thermal resistance with fouling and the thermal resistance without fouling is the fouling resistance; and the ratio of the thickness of fouling to the fouling