Device for improving gasification cavity of LNG room-temperature gasifier by virtue of solar wall

Abstract

The invention belongs to the technical field of liquefied natural gas gasification, and particularly relates to a device for improving gasification cavity of an LNG room-temperature gasifier by virtue of a solar wall. The device comprises the solar wall, air ports, an overhaul door and the LNG room-temperature gasifier, wherein the solar wall comprises a solar wall inner plate and a solar wall heat collection plate which are coaxially arranged in the shape of a circular barrel, a plurality of reinforcing ribs are welded between the solar wall inner plate and the solar wall heat collection plate from down up, the bottoms of the solar wall inner plate and the solar wall heat collection plate form an annular bottom air inlet port, and the tops of the solar wall inner plate and the solar wall heat collection plate are sealed; the air ports are rectangular air ports, and arranged in the solar wall inner plate in three layers from down up, one air port is arranged in the four directions of each layer respectively, and an air valve and a movable flow guide plate are arranged on each air port; the overhaul door is formed due north of the solar wall, and opened outwards; and the LNG room-temperature gasifier is placed at the centre of the solar wall. According to the invention, the temperature of ambient air of the LNG room-temperature gasifier is increased through adequately utilizing solar energy, thus the problems of frost accumulation and freezing of an outer surface are alleviated, and the gasification capacity and the heat exchange effect are improved; and the device is energy-saving, environment-friendly and efficient, simple in structure, free from energy consumption, and convenient to install and use.

Description

technical field [0001] The invention belongs to the technical field of liquefied natural gas gasification, and in particular relates to a device for improving the gasification capacity of an LNG air-temperature gasifier by using a solar wall. Background technique [0002] Liquefied natural gas (LNG for short) is an important source of city gas in my country, which needs to be gasified from a liquid state to a gaseous state before being supplied to users. Since the temperature of LNG is -162°C, an LNG air-temperature gasifier is often used to gasify LNG. The advantage of the LNG air-temperature gasifier is that it directly absorbs the heat in the atmosphere to gasify LNG, does not consume water and electricity, and has low operating costs. When it is low (especially in severe cold regions), the gasification capacity may not reach the rated value, and the outer surface of the gasifier is prone to frost and ice. For this reason, the existing technologies mostly use water bath...

AI Technical Summary

Problems solved by technology

The advantage of the LNG air-temperature gasifier is that it directly absorbs the heat in the atmosphere to gasify LNG, does not consume water and electricity, and has low operating costs. When it is low (especially in severe cold regions), the gasification capacity may not reach the rated value, and the outer surface of the gasifier is prone to frost and ice

For this reason, the existing technologies mostly use water bath heating, electric heating, or dual-use and one-standby methods to solve the problems of low gasification capacity and easy frosting and freezing of LNG air-temperature vaporizers, but these methods not only consume energy many, and high investment

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