Safety Protection for Chemical Reactors with Simultaneous Overpressure & Overtemperature

Chemical reactors are critical equipment in chemical production. Temperature and pressure continuously fluctuate along with process variations during reactions. Once either parameter approaches or exceeds the set threshold, reaction stability will be compromised and equipment operation risks will rise significantly. Therefore, temperature and pressure inside chemical reactors require synchronous monitoring and coordinated control.

① Fast Exothermic Reactions Trigger Temperature-driven Pressure RiseCertain chemical reactions release massive heat. Insufficient cooling capacity or delayed heat dissipation leads to continuous temperature rise inside the reactor. Medium vaporization intensifies, which may further push up pressure.

② Fluctuations of Process ParametersChanges in feeding speed, material ratio or reaction conditions will alter reaction rates, resulting in sharp short-term fluctuations of temperature and pressure.

③ Malfunction of Cooling or Pressure Relief SystemsIf cooling efficiency drops, or exhaust & pressure relief capacity becomes inadequate, heat and gas generated during reactions cannot be discharged timely, easily causing sustained rises in temperature and pressure.

It continuously tracks reactor pressure and outputs control signals once pressure hits preset values, supporting equipment startup/shutdown, alarm and interlock control. Parameters including setpoint and hysteresis can be configured to satisfy various working conditions.

It enables real-time monitoring and control of reactor temperature. Control signals are triggered when temperature reaches setpoints, applicable for heating, cooling and alarm management. Multiple temperature ranges are available to match diverse process requirements.

The unit integrates measurement, local display, signal output and control functions. Control signals are generated according to configured setpoints to realize equipment switching, alarming and safety interlock.

Supports 2 or 4 channels of digital output. Users may configure setpoints, alarm points and hysteresis (dead band). Standard 4-20mA analog output is equipped; RS485 communication can be customized for seamless connection with PLC, DCS and other automation systems.

Norhen pressure controllers and temperature controllers are offered with various measuring ranges, process connections and output options. Models can be selected based on medium properties, installation methods and on-site requirements, widely deployed in chemical, petrochemical, water treatment, machinery and other industrial sites.

Norhen specializes in industrial process measurement and control. Our product portfolio covers pressure controllers, temperature controllers, pressure transmitters, differential pressure transmitters, radar Level Transmitters, ultrasonic Level Transmitters, submersible Level Transmitters, flowmeters and more. Products serve industries including chemical, petroleum, power, water treatment, environmental protection, food, pharmaceutical, HVAC and automated machinery.

According to different working conditions, Norhen provides one-stop technical support: individual product selection, working condition analysis, solution consultation, parameter verification, on-site installation guidance and after-sales service. Customization services including measuring range, process connection and signal output are available to simplify instrument selection and project matching for customers.