Transcritical carbon dioxide heat pump-driven dehumidification and evaporation system for producing liquid ice

Abstract

The invention provides a transcritical carbon dioxide heat pump driven runner dehumidification and evaporation system for producing fluid ice, including a heat pump precooling and heat recovery system, an evaporative ice making system and a runner dehumidification system. The heat pump pre-cooling and heat recovery system uses carbon dioxide as a cycle. On the one hand, it pre-cools the circulating water and circulating air, and on the other hand, it heats the regeneration air through heat recovery at a transcritical high temperature. The evaporative ice-making system uses water as a cycle, and the pre-cooled circulating water enters the evaporative ice-making chamber, and evaporates and cools in the air with low moisture content to form liquid ice. The rotary dehumidification system uses air as a cycle. The humid air from the evaporative ice making room passes through the dehumidification area, and the air with low moisture content is dehumidified and then sent back; the dehumidification area restores the dehumidification capacity by heating the regeneration air. The invention greatly reduces the energy consumption of ice making through the dehumidification of the runner, and at the same time uses the carbon dioxide as the circulating heat pump to perform high temperature heat recovery.

Description

Transcritical carbon dioxide heat pump driven rotary dehumidification evaporation system to produce fluid ice technical field The present invention relates to a kind of preparation system of fluid ice, especially a kind of runner driven by transcritical carbon dioxide heat pump A system for dehumidification and evaporation to produce fluid ice. Background technique [0002] With the development of the economy and society, the problem of energy shortage has gradually become prominent, and refrigeration equipment including air-conditioning systems The energy consumption problem has aroused widespread social concern. Ice storage, as one of the most important energy-saving technologies at present, is the “peak shift” of electricity. "Valley filling" and an effective method to solve the shortage of peak power. As a good medium for ice storage, fluid ice is also due to its good It is widely used in building air conditioning, large-scale district cooling, industrial producti...

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Problems solved by technology

[0003] In the current method of producing liquid ice, the supercooling method is prone to ice blockage in the evaporator pipe due to the instability of the supercooled water; the mechanical scraper method is the most widely commercialized flow ice State ice preparation method, but it needs to consume a lot of extra mechanical power; the traditional vacuum method to produce liquid ice has a large vacuum pump energy consumption, and on this basis, the method of producing liquid ice by evaporation of solution dehumidification, then The concentration of the dehumidification solution is required to be high, and the solution dehumidification system is complicated, which increases the cost of making liquid ice

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