To provide a liquefied natural gas vaporizing system suitable for supplying gas fuel (natural gas) discharged from a vaporizer and supplied to a burner in a predetermined temperature range by only using waste heat of the burner.SOLUTION: A liquefied natural gas vaporizing system X1 for vaporizing natural gas as fuel gas from liquefied natural gas and supplying it to a burner 5 includes: a vaporizer 2 for heating liquefied natural gas by a liquid heat medium and vaporizing it; a heat recovery part 4 for recovering waste heat of the burner 5 by the liquid heat medium; heat medium circulation lines 62 and 63 for circulating the liquid heat medium between the heat recovery part 4 and the vaporizer 2; a mixing part 71 provided at the heat medium circulation lines 62 and 63 for mixing the liquid heat medium that has passed through the heat recovery part 4 and the liquid heat medium discharged from the vaporizer 2, which has not passed through the heat recovery part 4; and flow rate adjusting parts 624 and 73 for adjusting the flow rate of the liquid heat medium supplied to the vaporizer 2.SELECTED DRAWING: Figure 1
【課題】燃焼装置の排熱のみを利用し、気化器から排出されて燃焼装置に供給されるガス燃料(天然ガス)を所定の温度範囲で供給するのに適した液化天然ガス気化システムを提供する。【解決手段】燃料ガスとしての天然ガスを液化天然ガスから気化して燃焼装置5に供給するための液化天然ガス気化システムX1であって、液化天然ガスを液体熱媒で加熱して気化させる気化器2と、燃焼装置5の排熱を上記液体熱媒により回収する熱回収部4と、熱回収部4と気化器2の間で上記液体熱媒を循環させるための熱媒循環ライン62,63と、熱媒循環ライン62,63に設けられ、熱回収部4を通過した上記液体熱媒と、気化器2から排出され、かつ熱回収部4を通過していない上記液体熱媒とを混合する混合部71と、気化器2に供給される上記液体熱媒の流量を調節する流量調節部624,73と、を備える。【選択図】図1
LIQUEFIED NATURAL GAS VAPORIZING SYSTEM AND TEMPERATURE CONTROL METHOD OF LIQUEFIED NATURAL GAS VAPORIZING SYSTEM
液化天然ガス気化システム、および液化天然ガス気化システムの温度制御方法
19.11.2020
Patent
Elektronische Ressource
Japanisch
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