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Variable-heat-source cascade phase-change energy storage regulation and control device

A control device, phase change energy storage technology, applied in heat storage equipment, heat exchange equipment, heat exchanger types, etc., can solve the problems of inefficient storage of heat, loss of heat exchange in cascaded heat storage systems, etc., to reduce losses Effect

Active Publication Date: 2021-02-26
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, when the temperature at the inlet of the energy storage unit changes and is in an unsteady state and a temperature-changing process, the cascade heat storage system will have the following two problems: (1) It cannot efficiently store the fluids with a relatively low inlet temperature. (2) The heat transfer capacity of the cascade heat storage system will be lost to a certain extent

Method used

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  • Variable-heat-source cascade phase-change energy storage regulation and control device
  • Variable-heat-source cascade phase-change energy storage regulation and control device

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1: as figure 1 Shown is a schematic diagram of a heat storage device in an embodiment of the present invention, wherein a system heat source 301, a system cold source 302, a system heat source outlet valve 303, a water tank system heat source side valve 304, a water tank 305, a water tank system cold source side valve 306, The valve 307 at the outlet of the cold source of the system, the inlet valve 308 of the first energy storage unit, the inlet valve 309 of the second energy storage unit, the inlet valve 310 of the third energy storage unit, the first energy storage unit 311, the outlet valve 312 of the first energy storage unit , the second energy storage unit 313, the second energy storage unit outlet valve 314, the third energy storage unit 315, the third energy storage unit outlet valve 316, the first energy storage unit another outlet valve 317, the second energy storage unit another One outlet valve 318, another outlet valve 319 of the third energy st...

Embodiment 2

[0024] Embodiment 2: as figure 2 Shown is a schematic diagram of a cold storage device in an embodiment of the present invention, system heat source 401, system cold source 402, system heat source outlet valve 403, water tank system heat source side valve 404, water tank 405, water tank system cold source side valve 406, system cold source Source outlet valve 407, first energy storage unit outlet valve 408, second energy storage unit outlet valve 409, third energy storage unit outlet valve 410, first energy storage unit 411, first energy storage unit inlet valve 412, Second energy storage unit 413, second energy storage unit inlet valve 414, third energy storage unit 415, third energy storage unit inlet valve 416, first energy storage unit another inlet valve 417, second energy storage unit another inlet Valve 418, third energy storage unit inlet valve 419. Among them, in order to carry out the cascade cold storage smoothly, the phase change temperatures of the phase change ...

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Abstract

The invention discloses a variable-heat-source cascade phase-change energy storage regulation and control device. The energy storage regulation and control device comprises a plurality of system heatsources, a plurality of system cold sources, a plurality of valves, a plurality of water tanks and a plurality of energy storage units, wherein at least one valve is arranged at an outlet of each system heat source, at least one valve is arranged at an outlet of each system cold source, each water tank comprises at least one system heat source side valve and at least one system cold source side valve, and each energy storage unit comprises at least one inlet valve, at least two outlet valves, a heat taking flow channel and multiple layers of phase-change material containing spaces. The systemheat sources, the system cold sources, the water tanks and the energy storage units are connected through the valves and pipelines, and the valves and the pipelines are connected through threads.

Description

technical field [0001] The invention relates to the field of energy storage equipment, in particular to a variable heat source cascade phase change energy storage control device. Background technique [0002] The problem of energy crisis is becoming more and more prominent, and the burning of traditional fossil fuels has brought great pollution to the environment. These situations have prompted researchers to continuously develop new renewable energy sources to replace traditional energy sources, reduce environmental damage, and expand energy utilization. source. However, with the rapid development of the economy and the continuous improvement of people's living standards, the problem of the mismatch between energy demand and supply in terms of time and space also arises. The energy storage unit is one of the key technologies to solve the problem of energy imbalance. Compared with the sensible heat energy storage unit, the latent heat energy storage unit has relatively high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D20/00F28F27/00
CPCF28D20/0056F28F27/00Y02E60/14
Inventor 徐会金张梓鑫韩兴超赵长颖
Owner SHANGHAI JIAO TONG UNIV
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