▎ 摘　　要

NOVELTY - The system has a water pump water turbine module (3) for pumping water in an electric low valley time period and generating electricity in an electric peak time period. A high pressure water gas cabin module (5) is connected with the water pump water turbine module. A gas storage module (28) is connected with the high pressure water gas cabin module. An injection pipe (6) is connected with the high pressure water gas cabin module for spraying the water pumped by the water pump water turbine module in the electric low valley time period. The injection pipe is provided with a capillary hole and a micro-nano structure coating (7). The capillary hole forms a fine water column or a thin air column. The micro-nano structure coating is coated on a surface of the injection pipe for performing hydrophobic and heat transfer process. The micro-nano structure coating is made of metal copper, metal silver and/or graphene. USE - Water-gas heat exchange system for pumping compressed air to store energy. ADVANTAGE - The system realizes modularization process of a pumped compressed air energy storage system, increases adaptability of the pumped compressed air energy storage system to a geographic environment, and improves heat exchange efficiency between the water and the gas. DETAILED DESCRIPTION - The micro-nano structure coating is coated on a surface of a phase change heat storage liner, where the phase change heat storage liner is made of polyatomic alcohol material, molten salt material, liquid gallium-indium-tin alloy or liquid lead-tin-indium alloy. An INDEPENDENT CLAIM is included for a method for realizing water-gas heat exchanging process for pumping compressed air to store energy. DESCRIPTION OF DRAWING(S) - The drawing shows a block diagram of a water-gas heat exchange system for pumping compressed air to store energy. (Drawing includes non-English language text). 3Water pump water turbine module 5High pressure water gas cabin module 6Injection pipe 7Micro-nano structure coating 28Gas storage module