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Accumulator power stations with heat accumulators arranged in the overpressure zone

A pressure accumulator and heat accumulator technology, applied in accumulator devices, heat storage equipment, indirect heat exchangers, etc., can solve problems such as complex implementation and complex structure, and achieve simple structure, low cost, and simple structure Effect

Active Publication Date: 2017-12-05
AIRLIGHT ENERGY IP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this arrangement is still structurally complex because, despite the simplification of the heat accumulator, it has to be designed in such a way that it can withstand the pressure load even in the case of a large internal pressure during operation.
Especially for larger pressure accumulators (and thus for the storage of large amounts of heat), the disclosed design is not optimal and is always too complex for commercial realization

Method used

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  • Accumulator power stations with heat accumulators arranged in the overpressure zone
  • Accumulator power stations with heat accumulators arranged in the overpressure zone
  • Accumulator power stations with heat accumulators arranged in the overpressure zone

Examples

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Embodiment Construction

[0022] figure 1 A cross-section of a rock 1 is shown, which has a cavity built in it, designed as a pressure accumulator 2, for a gas, here air, stored under pressure. In addition, a machine room 3 can be seen, which is connected to the power grid 5 via a current line 4 . A compressor and turbine arrangement 6 , which is only schematically shown in the figure, is located in the machine room 3 . From this compressor and turbine arrangement, a compressed air line 7 leads via a transverse pit 8 to a heat accumulator 9 which is arranged in a separate space 10 of the cavern or of the pressure accumulator 2 . According to the invention, space 10 can be pressurized during operation of the pressure accumulator power station and thus form an overpressure zone next to pressure accumulator 2 .

[0023] The cavern for the pressure accumulator 2 can be in some suitable geological formation, for example in a mountain or underground in a plain, or it can also be formed, for example, by an ...

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Abstract

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.

Description

technical field [0001] The invention relates to a pressure accumulator power station according to the preamble of claim 1 . Accumulator plants of the mentioned type are used to store energy in the manner of lift accumulator plants: energy is stored during low load times and made available again during times of higher energy demand. Background technique [0002] Build energy storage devices in conventional energy production. It is now also increasingly required for alternative energy production, such as solar or wind energy, which is determined by the local weather conditions where the plant is located and is thus poorly or not designed for the current energy demand in the connected grid. The extension of the water-lifting accumulator power stations, which exist in many places, on the one hand presupposes corresponding geographical (mountain) conditions, but also encounters more and more political resistance there, because the larger storage The construction of pools is of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D20/00F17C1/00F02C6/16F02C6/14
CPCF02C6/14F02C6/16F17C2221/031F17C2223/0123F17C2223/035F17C2260/046F17C2270/0149F17C2270/0581F28D20/0056F28D2020/0082Y02E60/14Y02E60/16F02C1/05F15B1/024F28D20/00
Inventor A.佩德雷蒂G.赞加内
Owner AIRLIGHT ENERGY IP
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