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Fluid heat accumulating system and usage method thereof

A heat storage system and fluid technology, which is applied in the field of energy storage systems, can solve the problems of high cost and large floor space of heat storage systems, and achieve the effects of reducing initial filling volume, floor space and cost

Active Publication Date: 2020-07-10
TSINGHUA UNIV
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Problems solved by technology

[0005] Embodiments of the present invention provide a fluid thermal storage system and its usage method, which are used to solve the problems of high cost and large footprint of existing thermal storage systems

Method used

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  • Fluid heat accumulating system and usage method thereof
  • Fluid heat accumulating system and usage method thereof

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Embodiment Construction

[0050] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0051] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified and limited, the terms "first" and "second" are for the purpose of clearly describing the numbering of product components and do not represent any substantial difference. "Up", "Down", "Left" and "Right" are only used to ...

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Abstract

The invention related to the technical field of an energy storage system and discloses a fluid heat accumulating system and a usage method thereof. The fluid heat accumulating system includes a plurality of heat accumulating tanks, a gas-liquid separator, a lower temperature pump, a high temperature pump, a heat exchange device of the external heat supplied and a heat exchange device of a thermalload used outside. Initial filling liquid level of the heat accumulating tank is a zero liquid level; a feeding liquor valve of the separator is connected with a plurality of discharging valves of theheat accumulating tanks, a discharging gas valve is connected with a plurality of pressure maintaining valve, an inlet of the lower temperature pump is connected with a lower temperature dischargingliquor valve, an outlet of the lower temperature pump is connected with an inlet of the heat exchange device of the external heat supplied; an inlet of the high temperature pump is connected with a high temperature discharging liquor valve, an outlet of the high temperature pump is connected with an inlet of the heat exchange device of a thermal load used outside; an outlet of the heat exchange device of the external heat supplied and an outlet of the heat exchange device of a thermal load used outside are connected with a plurality of the feeding liquor valves of the heat accumulating tanks.The fluid heat accumulating system has the advantages of high usage rate of the heat accumulating tank and simple and flexible control and the like, the cost of the heat accumulating heat system can be lowered, and the covering area is reduced.

Description

technical field [0001] The invention relates to the technical field of energy storage systems, in particular to a fluid heat storage system and a method for using the same. Background technique [0002] Energy storage is currently the key technology to promote the utilization of renewable energy and solve the uninterrupted supply of energy, while heat storage (heat storage) is one of the most widely used and mature energy storage technologies. Due to the high grade of stored heat, high-temperature heat storage has the potential for large-scale energy storage, which can be used for energy storage alone, or combined with photothermal systems or compressed air energy storage systems for energy storage. [0003] At present, the media used in high temperature heat storage systems are mainly solid media, phase change media and liquid media. Among them, the solid medium is generally a high-temperature metal or alloy material, and the current technology maturity is not high; the ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D20/00
CPCF28D20/0034F28D2020/0082Y02E60/14
Inventor 梅生伟薛小代张学林张通
Owner TSINGHUA UNIV
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