After the liquid-phase LPG enters the vaporizer coil, it is forced to vaporize by being heated by the hot water outside the coil, and then supplies gas to the downstream. The anti-liquid device of the gasifier can prevent liquid petroleum gas from entering the downstream pipeline of the gasifier when the temperature of the water bath is too low or the gasifier is overloaded. When the amount of vaporization is constant, the liquid level of LPG in the coil is constant. When the amount of vaporization increases, the liquid level in the coil will rise. When it exceeds a certain level, the anti-over-liquid device will be activated to prevent over-liquid. When the temperature of the water bath is not enough, the float valve can also prevent the LPG liquid from entering the downstream pipeline without being heated and vaporized. A thermostatic controller and an over-temperature thermostat are arranged in the temperature control box, and the thermostatic controller controls the temperature of the water bath at about 70°C. When the temperature of the water bath exceeds 90°C, the over-temperature controller will cut off the power supply of the electric heater and give an alarm.
If the water volume of the vaporizer water tank is too small, the water level control switch will cut off the power supply of the electric heater until the water is refilled to the standard water level before the power supply returns to normal working condition.
The safety valve will open to release the pressure due to the overpressure of the gas phase in the vaporizer. When liquid is stored in the vaporizer, all valves connecting the vaporizer and the storage tank should be kept normally open. The field instrument is intrinsically safe or explosion-proof, and the control box is set in a safe area away from the field, which is convenient for remote operation of the vaporizer.
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