PRESSURISED ENERGY STORAGE SYSTEM IN WHICH THE HEAT ACCUMULATOR IS ARRANGED IN AN OVERPRESSURE ZONE

• Main Authors: ZANGANEH, GIW, PEDRETTI, ANDREA
• Format: Patent
• Language: English; French; German
• Published: 12.09.2013
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; GAS-TURBINE PLANTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; STORING OF DISTRIBUTING GASES OR LIQUIDS; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

Druckluftspeicherkraftwerk mit einem Druckspeicher (2) für unter Druck zu speicherndem Gas und mit einem Wärmespeicher (27) für die Speicherung der während der Beschickung des Druckspeichers (2) angefallenen Kompressionswärme, wobei der Wärmespeicher (27) seinerseits betriebsfähig in einer Überdruckzone (31) angeordnet ist. Diese Anordnung erlaubt, einen konstruktiv einfachen Wärmespeicher vorzusehen, da dieser nicht durch den Druck des ihn durchmessenden Gases beansprucht wird. The invention relates to a compressed air energy storage system comprising a pressure accumulator (2) for gas to be stored under pressure, and a heat accumulator (27) for storing the compression heat that has accumulated during charging of the pressure accumulator (2), wherein the heat accumulator (27) is arranged ready for use in an overpressure zone (31). Said arrangement enables a structurally simple heat accumulator to be provided, since said heat accumulator is not loaded by the pressure of the gas passing therethrough. L'invention concerne une centrale électrique à accumulateur d'air comprimé comprenant un accumulateur de pression (2) pour un gaz qui doit être accumulé sous pression et un accumulateur de chaleur (27) pour l'accumulation de la chaleur de compression qui a été générée pendant la charge de l'accumulateur de pression (2), l'accumulateur de chaleur (27) étant monté en ordre de marche dans une zone de surpression (31). Cet agencement permet d'utiliser un accumulateur de chaleur d'une construction simple puisqu'il n'est pas soumis à la pression du gaz qui le traverse.