Water bath type gasifying device

Abstract

The present invention discloses a water bath type gasifying device, which comprises a shell, an inlet, an outlet, a gasification unit and a plurality of layered inner pipes. The inlet and the outlet are arranged on the shell, the gasification unit comprises at least one input header pipe, a plurality of first branch pipes and at least one output header pipe, wherein the input header pipe is used for collecting liquid to be gasified; the first ends of the first branch pipes are communicated with the input header pipe; the output header pipe is communicated with the second ends of the first branch pipes; and each layered inner pipe is respectively arranged in one first branch pipe and close to the first end of the first branch pipe, and flow channels are formed between the peripheries of the layered inner pipes and the first branch pipes. The gasification speed of the liquid just flowing into the heating branch pipes can be reduced, the temperature in a space around the lower ends of the heating branch pipes can not decrease drastically, and thus the possibility of freezing near the lower ends of the heating branch pipes can be effectively avoided.

Description

technical field [0001] The invention relates to a gasifier for gasifying low-temperature liquids such as liquid nitrogen, liquid oxygen, liquefied natural gas, and liquefied petroleum gas into gases, and in particular, relates to a gasifier using an external liquid medium such as warm water and A water-bath vaporizer that performs heat exchange on the vaporized low-temperature liquid to realize gasification of the low-temperature liquid. Background technique [0002] There are various forms of low-temperature liquid vaporizers. From the perspective of structure and working principle, they can generally be divided into air-temperature vaporizers and water-bath vaporizers. Vaporizers are mainly used to gasify low-temperature liquids such as liquid nitrogen, liquid oxygen, liquefied natural gas, and liquefied petroleum gas, that is, to gasify low-temperature liquids into normal temperature gases, so as to meet the needs of steel, chemical, electronics, cutting and other fields....

AI Technical Summary

Problems solved by technology

However, increasing the spacing between the coils will reduce the gasification capacity of the gasifier. Therefore, in this traditional water-bath gasifier, hot water heated by a conventional boiler is generally used as the heating medium, that is, the temperature of the imported hot water It is about 90°C, and the temperature of the water at the outlet after heat exchange is about 70°C

However, the use of such high-temperature hot water cannot effectively use the warm water produced by the air separation system in the factory for heat exchange, so that the heat of these warm water is wasted, and the waste of resources is caused in the process of heating boiler water.

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