Explosion-proof hydrogen heater
Product overview:
This system has reasonable equipment structure, complete supporting facilities, short installation period, simple operation and operation, high degree of automation, safe and reliable, widely used closed-circuit heating, low heat loss, significant energy-saving effect, and can meet different multiple uses Thermal equipment.
Specific advanced temperature control and safety monitoring devices can accurately increase the process required temperature and feedback to the control system through the temperature detection device to achieve automatic temperature adjustment.
Working principle:
The medium at the initial temperature enters the inlet of the electric heater through the pipeline under the action of pressure, and takes away the large amount of heat emitted from the surface of the electric heating element along the specific path inside the electric heater according to the principle of high-efficiency heat dissipation thermodynamics, and then it is heated by electricity. The outlet of the device obtains the medium that meets the process temperature requirements.
When the medium temperature is close to the set value, the electric heater control system performs PID calculation based on the equipment outlet temperature sensor signal, and automatically adjusts the heater output power so that the output medium temperature reaches the required temperature; when the electric heating element exceeds the temperature, the temperature The protection device of the control system immediately automatically cuts off the heating power to avoid burning of the electric heating element, so as to extend the service life.
Note:
Hydrogen is a colorless, odorless and tasteless flammable gas at room temperature and pressure. Except for suffocation caused by lack of oxygen, no toxicity has been found. Hydrogen has a strong affinity with air, oxygen, and halogen. Hydrogen has a high ignition point, but its ignition energy is very small, so it is easy to catch fire, and it is easy to catch fire even under tiny static sparks.
When the equipment needs to heat hydrogen, it must be replaced with pure nitrogen (or other pure inert gas) (Note: the content of nitrogen must not exceed 3%, and the oxygen or hydrogen content in the system after the replacement must be qualified for three consecutive analyses).
When the power is automatically cut off, the electric heating must not be started directly, and the hydrogen source must be cut off immediately to switch to the nitrogen source. When the temperature approaches normal temperature, cut off all sources, open the explosion-proof wiring compartment to check the resistance and insulation of the electric heating element, and check whether the heater is leaking, short-circuited, or missing to prevent hydrogen leakage.