LNG (Liquefied Natural Gas) direct-cooling type ice maker and LNG direct-cooling type ice making method

Abstract

The invention discloses an LNG direct-cooling type ice maker. The LNG direct-cooling type ice maker comprises a main support, an LNG ice making system, an ice melting system and a control system, the LNG ice making system comprises an LNG circulating refrigeration pipeline, an ice mold and a lifting platform, the ice mold is fixedly mounted at the upper half part of an ice making area of the main support, the lifting platform is mounted below the ice mold, the LNG circulating refrigeration pipeline comprises an input pipe, an output pipe, an upper flow converging pipe, a lower flow dividing pipe and a plurality of liquid cooling pipes, the plurality of liquid cooling pipes are mounted in through holes of a vertical partition plate, the ice melting system comprises a heating medium energy storage tank, a heating medium circulating pump, a heating medium circulating pipeline and a heating device, the heating medium circulating pipeline comprises a conveying pipe, a flow dividing pipe, a plurality of heat dissipation pipes, a flow converging pipe and a recycling pipe, the plurality of heat dissipation pipes are further installed in the through holes of the vertical partition plate, and the control system is used for controlling the operation of the whole device. According to the LNG direct-cooling type ice maker, cold energy generated in an LNG gasification process is fully utilized, manufacturing of ice blocks is completed, the structure is simple and novel, the safety is high, the cold energy utilization efficiency is high, the ice making time is short, and later maintenance is convenient.

Description

technical field [0001] The invention relates to the technical field of LNG application, in particular to an LNG direct cooling ice maker and an ice making method thereof. Background technique [0002] LNG (Liquefied Natural Gas), the English abbreviation of liquefied natural gas, natural gas is becoming more and more popular as a clean energy source. Many countries have listed LNG as the preferred fuel, and the proportion of natural gas in energy supply has increased rapidly. As the material basis for human survival and social development, energy utilization efficiency is generally low at this stage, and most of the useful energy is directly discharged as waste, which has not been rationally and effectively utilized. For example, with the increase in demand for natural gas consumption, a large amount of cold energy will be released during LNG gasification during use. Since LNG receiving stations are mostly built along the coast, the cold energy released during the LNG gasifi...

AI Technical Summary

Problems solved by technology

As the material basis for human survival and social development, energy is generally low in energy utilization efficiency at this stage, and most of the useful energy is directly discharged as waste, which has not been rationally and effectively utilized.

For example, with the increase in demand for natural gas consumption, a large amount of cold energy will be released during LNG gasification during use. Since LNG receiving stations are mostly built along the coast, the cold energy released during the LNG gasification process is directly taken away by seawater or air. Cause cold energy energy to be lost in vain, not utilized

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