An internal temperature-controlled liquid piston device capable of scaling gas isothermally

Abstract

The invention belongs to the technical field of liquid pistons, and particularly relates to a liquid piston device with isothermy scaling of air achievable and with temperature controlled inside. According to the liquid piston device with the isothermy scaling of the air achievable and with the temperature controlled inside, the top portions of two liquid piston chambers are respectively connected with a high pressure gas pipeline and a low pressure gas pipeline, the bottom portions of the two liquid piston chambers are both connected with an external hydraulic set through respective liquid pipelines, and a plurality of intracavity liquid storage units are arranged in the liquid piston chambers. When the liquid piston device operates, liquid stays in the intracavity liquid storage units, and the liquid storage units are used for increasing the contact area between the liquid and the air to improve heat exchange speed between the liquid and the air, and liquid temperature is used for controlling air temperature to achieve the isothermy scaling of the air. The intracavity liquid storage units are of two basic structures, have multiple enhancement type temperature control modes such as the spraying mode, the liquid circulation mode, and the air filtering mode, and can be realized through one or multiple combination types.

Description

technical field [0001] The invention belongs to the field of liquid piston technology and the field of compressed air energy storage, and in particular relates to a heat supplement and temperature control technology using a liquid piston, in particular to an internal temperature control liquid piston device capable of isothermal scaling of gas. Background technique [0002] Energy storage technology has been regarded as an important part of the grid operation process, and compressed air energy storage is widely used. However, compressed air energy storage has certain limitations. The main disadvantage of compressed air energy storage is that it usually cooperates with gas turbines, consumes gas, causes environmental pollution, is easy to leak, has low energy density, and when air is compressed and expanded, the temperature changes drastically. The damage to the equipment is relatively large, resulting in high maintenance costs. [0003] In recent years, researches have appl...

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Problems solved by technology

[0005] Aiming at the problems of heat loss in the compression process of compressed air energy storage and large energy loss due to pressure drop caused by low temperature during expansion, the invention proposes an internal temperature-controlled liquid piston device that can make the gas isothermally scaled

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