Fused salt steam generator

Abstract

A fused salt steam generator is composed of a steam pocket (1), a steam generation tank (2) and a lower collection pipe (3), wherein the steam pocket (1) is located at the upper part of the fused salt steam generator, the steam generation tank (2) is located at the middle part of the fused salt steam generator, the lower collection pipe (3) is located at the lower part of the fused salt steam generator and below the steam generation tank (2); and the lower collection pipe (3) supports the fused salt steam generator. The steam pocket (1) is composed of a steam pocket end enclosure (5), a steam pocket shell body (4), a steam outlet (27), a pressure connector (26) and a safety valve connector (28); the steam generation tank (2) is composed of a steam generation tank outer shell (7), a steam generation tank inner shell (36), a hand hole (11) and a steam generation tank end enclosure (8). The steam generation tank inner shell (36) is connected with the steam pocket (1) through a steam ascending pipe (6). The lower collection pipe (3) is composed of a lower collection pipe inlet (18), a lower collection pipe outlet (19), a lower connection pipe shell body (20), a lower connection pipe end enclosure (21), an auxiliary heat exchange medium pipeline (34), a phase change material (35), etc.

Description

technical field [0001] The invention relates to a steam generator, in particular to a molten salt steam generator in the application field of solar thermal power generation. Background technique [0002] At present, my country is actively developing solar thermal power generation technology and promoting the commercialization of solar energy's medium and high temperature heat utilization. However, as we all know, solar energy has the characteristics of discontinuity and instability. When the solar radiation is poor and other weather conditions, how to realize continuous solar thermal utilization, energy storage technology becomes the key. At present, in solar thermal power generation systems, the commonly used heat storage working fluids are heat transfer oil and molten salt. Due to its high freezing point, molten salt needs to pay attention to its solidification and blockage. Patent 201110049637.6 describes an integrated heat storage and evaporation device for solar therm...

AI Technical Summary

Problems solved by technology

Patent 201110089465.5 and Patent 201110096656.4 disclose two types of energy storage steam generators, but they do not involve the problem of easy solidification and blockage of molten salt

Patent 200910193410.1 and Patent 200810198461.9 respectively disclose a molten salt shell-and-tube steam generator and a solar molten salt sleeve-type steam generator, neither of which concerns the problem that the molten salt is easy to solidify and block the steam generator

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