Flange electric heater failure and alarm system knowledge introduction
During operation, the low-temperature fluid medium enters its input port under pressure through the pipeline, along the specific heat exchange flow path inside the electric heating vessel, using the path designed by the fluid thermodynamic principle of the air electric heater to take away the air The high-temperature thermal energy generated during the operation of the electric heating element in the electric heater causes the temperature of the heated medium of the air electric heater to increase, and the outlet of the electric heater obtains the high-temperature medium required by the process.
Under sufficient heating conditions, the deviation of the rated power of the electric heating tube should not exceed the following specified range:
1. For electric heating tubes whose rated power is less than or equal to 100W: ± 10%;
2. For electric heating tubes whose rated power is greater than 100W: + 5% ~ -10% or 10W, whichever is greater.
When a fault occurs in the electric flange heater, the built-in alarm system will prompt the user in the form of flashing alarm light, its alarm relay starts to work, the fault display alarm light will light up, and an alarm sound can also be emitted. If there will be an alarm due to temperature overheating due to overheating, the measures to be taken are to turn off the electric heater and other devices when the temperature drops, and check the associated equipment. If an alarm is issued in the module system that adjusts the pressure, this problem usually occurs due to damage to the components in the electric heater. You should immediately look for a module of the same model to replace it, so as to ensure that it can not be used. Therefore, it will delay too much time. Does not affect production. The internal control system of the electric heater automatically adjusts the output power of the electric heater according to the temperature sensor signal of the output port, so that the medium temperature of the output port of the flange electric heater is uniform; when the heating element of the air electric heater is over temperature, the heating element The independent overheating protection device immediately cuts off the heating power to avoid coking, deterioration and carbonization caused by the overheating of the heating material in the air electric heater. In severe cases, the heating element in the flange electric heater will burn out, effectively extending the use of the electric heater life.
