LNG reusing device

Abstract

The invention discloses a LNG reusing device comprising a vaporizer A and an LNG storage tank; one end of the vaporizer A is connected to a tanker pressurized gas phase port through a tanker pressurized gas phase pipe, and the other end of the vaporizer A is connected to a tanker pressurized liquid phase port through a tanker pressurized liquid phase pipe; one end of the vaporizer A is connected to an upper gas phase port of the LNG storage tank through a gas phase pipe of the LNG storage tank, and the other end of the vaporizer A is connected to a lower liquid phase port A of the LNG storagetank; an upper liquid phase port of the LNG storage tank is connected to a tanker unloading liquid phase port through an upper unloading liquid phase pipe and an unloading liquid phase pipe, and the lower liquid phase port A of the LNG storage tank is connected to the tanker unloading liquid phase port through the liquid phase pipe of the LNG storage tank and the unloading liquid phase pipe; the upper gas phase port of the LNG storage tank is connected to a downstream pipeline interface through a gas supply gas phase pipe, and a lower liquid phase port B of the LNG storage tank is connected tothe downstream pipeline interface through a gas supply liquid phase pipe. According to the LNG reusing device disclosed by the invention, the independent technology and device in the prior art are integrated, so that the technology and device structure are simplified; and the device construction cost is saved, and the field installation workload is reduced.

Description

technical field [0001] The invention relates to the field of LNG, in particular to an LNG reuse device. Background technique [0002] As an important clean energy, LNG has been widely used in industrial, civil and other fields in recent years. [0003] The LNG gas supply process usually includes LNG unloading, tank car pressurization, LNG storage, LNG gas supply, LNG storage tank pressurization, gas supply pressure regulation and other processes. The corresponding process devices are LNG unloading device, tank car pressurizing device, LNG storage device, LNG storage tank pressurizing device, and air supply pressure regulating device. However, in the prior art, each process and device are independent and scattered, resulting in cumbersome device design, poor sharing utilization, large on-site installation engineering, high project construction cost, complex control logic, and difficulty in realizing interactive interlocking between processes. The control operation is cumber...

AI Technical Summary

Problems solved by technology

However, in the existing technology, each process and device is independent and scattered, which leads to cumbersome device design, poor sharing utilization rate, large amount of on-site installation engineering, high project construction cost, complex control logic, and difficulty in realizing interactive interlocking between processes. The control operation is cumbersome, the maintenance is inconvenient, and the safety risk of the device operation is high

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