High-heat-insulation explosion-proof storage tank for liquefied natural gas

一种高保温防爆式液化天然气存储罐

Abstract

The invention discloses a high-heat-insulation explosion-proof storage tank for liquefied natural gas. The high-heat-insulation explosion-proof storage tank comprises three layers of tank body, i.e., an inner tank body, a first outer tank body and a second outer tank body from interior to exterior, wherein the inner tank body is used for storing liquefied natural gas; an enclosed vacuum heat-insulation interlayer is arranged between the inner tank body and the first outer tank body; a vacuum powder heat-insulation interlayer is arranged between the first outer tank body and the second outer tank body; the inner tank body is provided with two pressure gauges, and the situation of internal pressure in the inner tank body is monitored in real time via the two pressure gauges, so the effect of double insurance is obtained; a vacuum detection and control device is arranged to guarantee the vacuum heat insulation performance of the interlayers and prevent dangers due to pressure increase with heat in the inner tank body; a liquid circulation pipeline is arranged to prevent the phenomenon of vortex; and an inert gas inlet is also arranged.
本发明公开了一种高保温防爆式液化天然气存储罐,包括三层罐体,从内到外依次为内罐体、第一外罐体和第二外罐体,内罐体用于储存液化天然气,内罐体和第一外罐体之间为密闭的真空隔热夹层,第一外罐体和第二外罐体之间为真空粉末绝热夹层;其设置有两个压力表,通过两个压力表实时监测内罐体内压力情况,起到双保险的作用;设置有真空检测及控制装置,从而保证夹层的真空隔热性,防止内罐体受热压力增大产生危险;设置有液体循环管路,防止产生涡旋现象;还设置有惰性气体进口。

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