Early warning system for condensation induced hydraulic shock

An apparatus for early warning against condensation induced hydraulic shock in a pipe conveying a fluid present at least in a first part in the vapor phase and, in the case of condensate formation, in a second part in the form of a condensate, comprising:

• at least two temperature sensors, which are arranged in the pipe and, thus, are fluid contacting;
• and
• at least one electronics unit, wherein:
• a first temperature sensor of said at least two temperature sensors is so arranged that it measures the temperature of the vapor:
• wherein a second temperature sensor of said at least two temperature sensors is so arranged that it measures the temperature of the condensate;
• and
• said at least one electronics unit is so embodied that it ascertains the temperature difference (ΔT) between the temperature of the vapor and the temperature of the condensate, and, upon reaching a predetermined limit value for the temperature difference (ΔT), generates a report for early warning against condensation induced hydraulic shock.