LNG gasification station low-temperature storage tank connector valve group system

Abstract

The invention provides an LNG gasification station low-temperature storage tank connector valve group system. The LNG gasification station low-temperature storage tank connector valve group system ischaracterized by comprising a liquid inlet header pipe part and a liquid outlet header pipe part, wherein the liquid inlet header pipe part comprises two branches, one branch is connected with an LNGstorage tank pressurizing liquid inlet pipe, a valve (4) is arranged on a storage tank pressurizer liquid inlet header pipe and connected to a connector (B), the other branch is provided with a starting emergency cut-off valve (3), ZSOV and VIC are arranged at the valve (3), a valve (1) and a valve (2) are arranged on the downstream of the valve (3), lead to a storage tank upper liquid inlet header pipe and a storage tank lower liquid inlet header pipe and are connected to a connector (C) and a connector (D), the connector (C) is connected with an upper liquid inlet of a storage tank, and theconnector (D) is connected with a lower liquid inlet of the storage tank; and a gas phase pipe is connected with a gas phase opening of the storage tank through a connector (E), the gas phase pipe isa two-way ventilation pipe, and a gas inlet pipe in the gas inlet direction passes through a connector (I) connected with a storage tank pressurizer, a valve (7) is arranged on the downstream of the connector (I), and then the gas inlet pipe is connected to the connector (E) and connected with the storage tank.

Description

technical field [0001] The invention relates to a low-temperature storage tank interface valve group system of an LNG gasification station, which belongs to the field of control systems of the LNG gasification station. Background technique [0002] At present, the inlet and outlet pipelines of storage tanks in conventional LNG gasification stations are criss-crossed, and the horizontal width of pipelines is between 1000mm and 1400mm. The valves are difficult to operate, and pipeline ladders need to be made separately, which affects the overall appearance and poses safety hazards. Contents of the invention [0003] In order to solve the above-mentioned deficiencies and shortcomings, the patent of the present invention proposes a low-temperature storage tank interface valve group system of an LNG gasification station. [0004] The technical scheme that the present invention adopts for solving technical problems is as follows: [0005] A low-temperature storage tank interfac...

AI Technical Summary

Problems solved by technology

[0002] At present, the import and export pipelines of storage tanks in conventional LNG gasification stations are criss-crossed, and the horizontal width of the pipelines is between 1000mm and 1400mm. The operation of the valves is difficult, and it is necessary to make separate pipeline ladders, which affects the overall appearance and has potential safety hazards.

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