The invention relates to a
system and method for monitoring the
fouling coefficient of a
plate heat exchanger in real time. The
system comprises a sensor module, a processor, a
server, an alarm and astorage unit, wherein the sensor module is used for acquiring the
temperature and pressure of inlets and outlets on a
cold side and a hot side of the
plate heat exchanger and acquiring
mass flow ratedata of the hot side and the
cold side, and the processor is used for acquiring the
fouling coefficient according to the sensor data and data in the storage unit. In the method based on the
system, the data of the sensor module and the storage unit is processed, the
fouling coefficient is acquired finally according to a
heat transfer coefficient formula, whether cleaning is needed or not is judgedaccording to the fouling coefficient, and an alarm is given. Compared with the prior art, the system and method for monitoring the fouling coefficient of the
plate heat exchanger in real time can accurately acquire the fouling coefficient of the plate
heat exchanger and give an alarm, the safety of the system is improved, and manpower and financial resources are saved; and initial judgement is performed based on a
differential pressure ratio, then, the fouling coefficient is confirmed in combination with the temperature, the pressure and the
mass flow rate, and dual protection and judgment ensure the accuracy and safety of the system.