LNG Gasification Station
LNG Gasification Station
SGL LNG gasification pressure regulating station characterized by high precision, compact structure, convenient installation, use and maintenance, and short construction period is applicable to the pressure regulation of gas used by users from cities and towns, communities or industrial areas and commercial areas where long-distance pipeline networks cannot be laid.
LNG, which can also be used as urban peak shaving equipment and standby equipment, is to purify and cool the gaseous natural gas, store and transport it at low temperature to the liquefied natural gas gasification station for gasification, pressure regulation, metering and odorization, and send it to the pipe network to supply it all kinds of users.
Process flow: the liquefied natural gas sent by the LNG tanker pressurizes the liquid in the tanker through the supercharger at the unloading position, and then it is charged into the LNG storage tank via the principle of differential pressure. When in use, the liquefied natural gas in the storage tank is pressurized by the self-pressurization system of the storage tank, or pressurized by the low-temperature pump, and then discharged to the LNG air temperature gasifier for gasification (the water bath heater shall be equipped in winter in northern China). Finally, the heated natural gas is regulated, measured, odorized and sent to the pipe network.
The liquefied natural gas in the unloading pipe connecting the LNG tanker and the LNG storage tank is evacuated by the EAG heater. If the pressure in the LNG storage tank is too high, it shall be vaporized by the BOG heater and then sent to the pre-pressure regulation system, or evacuated by the EAG heater.
Structural Characteristics
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Storage systemLNG low temperature storage tank (1-150m³) or LNG cryogenic insulation bottle group01
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Unloading systemUnloading supercharger, low-temperature corrugated hose02
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Gasification systemLNG air temperature gasifier, BOG air temperature heater, EAG air temperature heater and water-bath heater03
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Pressure regulating systemPressure regulator04
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Metering systemFlowmeter05
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Odorization systemGas odorizer06
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Control systemCentral console07
Main Technical Parameters
Applicable media | LNG |
Designed pressure | 1.76Mpa |
Outlet pressure | 0.3-1.6Mpa |
Outlet pressure | 0.1-0.4Mpa |
Outlet temperature | Lower than the ambient temperature by 5-10°C |
Gasification capacity | 100-5000Nm³/h |
Pressure regulation | Select two-way, three-way or multi-channel structure as required |
Safety measures | Overpressure / pressure loss cut-off + safety release + gas leakage alarm |
Metering equipment | Select flowmeter with volume corrector as required |
Purification equipment | 5μm, 10μm and 20μm can be selected for filter accuracy |
Manual valve | Ball valve and butterfly valve (recommended for medium pressure) |
Control valve | Select electric or pneumatic valve as needed |
Reheater | Select electric heating, hot water circulating heating or steam heating as required |
Odorizer | Select as required |
Data collection | Collect on-site pressure, temperature, differential pressure, flow, gas composition, equipment operation status and other parameters as required |
Instrument air system | Nitrogen cylinder and air compressor |
Protective equipment | Stainless steel outer box with strong corrosion resistance is recommended for color steel plate outer box and stainless steel outer box |
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