Steam-liquid-solid three-phase energy accumulator

Abstract

The invention provides a steam-liquid-solid three-phase energy accumulator, and belongs to the technical field of energy accumulation. The steam-liquid-solid three-phase energy accumulator uses an absorption type refrigeration work medium as an energy accumulation medium, a three-phase energy accumulation tank and a liquid stage refrigerant accumulation tank are organically combined for forming the steam-liquid-solid three-phase energy accumulator, the two accumulation tanks respectively adopt the upper part heat exchange and lower part liquid storage integration and liquid self circulation spraying design, an upper part heat exchanger of the three-phase energy accumulator adopts a surface porous pipe heat exchanger for reinforcing the heat mass transfer process, the solution crystallization and crystal dissolution are accelerated through the arrangement of a crystal distributor at the lower part of the three-phase energy accumulation tank, and four layers of filter screen devices are arranged and are ranged in a staggered way in different layers. The steam-liquid-solid three-phase energy accumulator has the advantages that the danger caused by crystallization in the existing solution absorption type energy accumulation is avoided, meanwhile, the energy accumulation density is obviously improved through being compared with that of a three-phase energy accumulation mode, the energy accumulation density can be improved by more than 50 percent through the 50-percent crystallization rate, in other words, the 50-percent crystallization rate is realized, the size of the energy accumulator is reduced by more than a half, the regulation and the control are simple, the steam-liquid-solid three-phase energy accumulator is combined with a traditional absorption type refrigeration air conditioner system for forming an absorption type refrigeration air conditioner system with the three-phase energy accumulator.

Description

Technical field [0001] The invention belongs to the technical field of energy storage, and particularly relates to a vapor-liquid-solid three-phase accumulator based on the absorption principle. Background technique [0002] Energy storage technology is one of the important measures to solve the unsynchronization and mismatch of supply and demand in all aspects of energy production, transportation and use. The periodicity, intermittent, unstable and unmatched nature of renewable energy such as solar energy With the characteristics of low heat flux, energy storage technology plays a vital role in its efficient utilization. Among various energy storage technologies, sensible heat and latent heat storage are relatively mature and widely used energy storage technologies. However, the main disadvantage of the former is its low energy storage density, while the latter has a large heat transfer temperature difference, energy storage and energy release rate. low. The chemical solution ...

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Problems solved by technology

However, in order to avoid the danger of solution crystallization in the current solution absorption energy storage, the concentration difference before and after the working solution energy storage is limited, and the energy storage potential of the solution cannot be fully utilized. In order to further tap the potential of solution energy storage and improve solution energy storage The energy storage density of the device, invented a vapor-liquid-solid three-phase accumulator using the absorption refrigeration working medium as the energy storage medium, and this accumulator can be directly combined with the absorption refrigeration and air conditioning system to form an energy storage type Air-conditioning system to solve the imbalance between energy supply and air-conditioning energy consumption

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