1. BOG heater
The daily evaporation rate of the LNG storage tank is about 0.15%. If this part of the evaporated gas (referred to as BOG) is not discharged in time, the pressure of the storage tank will increase. For this reason, a pressure-reducing regulating valve is set to automatically discharge according to the pressure. BOG. The BOG evaporated from the storage tank and the BOG unloaded from the tank truck are heated by a BOG heater and then enter the BOG storage tank for storage. When using the water bath NG heater in winter, BOG can be used as fuel for the hot water boiler, and can enter the pipeline network in summer .
2. EAG heater
The low-temperature system safety valve vents low-temperature gas. When it is below about -107°C, the gravity of natural gas is greater than that of air at normal temperature. The emission is not easy to spread and accumulates downward. Therefore, an air-temperature diffused gas heater is installed. The diffused gas passes through the heater first. After heat exchange with the air, the specific gravity of the natural gas will be smaller than that of the air.
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