Comparative method for condenser saturation pressures under different thermal loads

The invention discloses a comparative method for condenser saturation pressures under different thermal loads. According to the method, a first thermal load saturated steam temperature of a condenser is obtained under a first thermal load condition; a second thermal load saturated steam temperature is obtained under a second thermal load condition; and through a steam meter for query, two condenser saturation pressures corresponding to the first thermal load saturated steam temperature and the second thermal load saturated steam temperature are respectively obtained, wherein the second thermal load saturated steam temperature is the one after condenser circulating cooling water inlet temperature and condenser thermal load under the second thermal load condition are corrected to be equal to condenser circulating cooling water inlet temperature and condenser thermal load under the first thermal load condition. According to the method, only by obtaining working parameters of the condenser at any time and through