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Self-operated enclosure structure energy storage system based on gas-liquid-solid-liquid coupling phase change

A technology of enclosure structure and energy storage system, applied in air-conditioning systems, building components, heating methods, etc., can solve the problem of not being able to maximize the energy-saving benefits of phase change materials

Pending Publication Date: 2021-04-30
HUNAN INSTITUTE OF ENGINEERING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The purpose of the present invention is to provide a self-supporting enclosure structure energy storage system based on gas-liquid-solid-liquid coupling phase change, to solve the problems in the above-mentioned prior art, and to automatically adjust the position of the phase change material according to the season and the indoor and outdoor temperature difference , to solve the problem that the existing technology cannot maximize the energy-saving benefits of phase change materials

Method used

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  • Self-operated enclosure structure energy storage system based on gas-liquid-solid-liquid coupling phase change
  • Self-operated enclosure structure energy storage system based on gas-liquid-solid-liquid coupling phase change
  • Self-operated enclosure structure energy storage system based on gas-liquid-solid-liquid coupling phase change

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Effect test

Embodiment 1

[0042] Such as Figure 4 As shown, the indoor temperature regulation of buildings in hot summer and warm winter and mild areas is dominated by refrigeration, so the summer energy storage tube 3 can be used alone in this area. According to the difference of indoor design temperature, the phase change temperature of the solid-liquid phase change material filled in the storage chamber can be selected within the range of 24-28°C. T wall,out Represents the external surface temperature of the wall, T wall,in Represents the inner surface temperature of the wall, P out Represents the pressure of the temperature sensing bulb outside the outdoor, P in Represents the pressure of the temperature sensing bulb inside the chamber, S represents the cross-sectional area of ​​the piston / piston, F 0 represents the frictional resistance of the piston, F PCM Represents the frictional resistance between the solid-liquid phase change material and the inner surface of the energy storage tube she...

Embodiment 2

[0048] Such as Figure 5 As shown, in severe cold or cold regions, heating is mainly used in building interiors, so the winter energy storage pipe 4 can be used alone in this region. According to different indoor design temperatures, the phase change temperature of the solid-liquid phase change material 10 filled in the energy storage tube can be selected within the range of 16-20°C.

[0049] In the winter morning, when the outdoor temperature or the intensity of solar radiation starts to increase, so that the temperature of the outer surface of the outer wall is higher than the indoor temperature, the gas-liquid phase change material 21 in the outdoor temperature sensing package 1 evaporates and expands to form a relatively high pressure, which passes through the pressure guiding tube It is transmitted to the indoor side of the energy storage tube; the gas-liquid phase change material in the indoor temperature sensing package 2 condenses and shrinks to form a relatively low p...

Embodiment 3

[0054] Such as Figure 6-7 As shown, the region with hot summer and cold winter needs cooling in summer and heating in winter. In this area, the summer energy storage tube 3 and the winter energy storage tube 4 can be used in combination. According to the indoor design air-conditioning temperature and heating temperature, the energy storage tube 3 in summer and the energy storage tube 4 in winter can be filled with solid-liquid phase change materials with different phase change temperatures respectively.

[0055]In summer, the summer energy storage tube 3 works, and its working principle is the same as that of the summer energy storage tube 3 used alone. At this time, the low-temperature phase-change material filled in the energy storage tube 4 in winter is generally in a liquid state due to the low phase-change temperature, and the position of the solid-liquid phase-change material inside and outside the room will move with the temperature difference between indoor and outdoo...

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Abstract

The invention discloses a self-operated enclosure structure energy storage system based on gas-liquid-solid-liquid coupling phase change. The self-operated enclosure structure energy storage system comprises a wall body and an energy storage ring pipe system installed in the wall body, wherein the wall body comprises an outer side wall base body layer, a heat preservation layer and an inner side wall base body layer which are sequentially arranged from outside to inside; the energy storage ring pipe system comprises an outdoor side temperature wrap installed in the outer side wall base body layer; an indoor side temperature wrap is installed in the inner side wall base body layer; and the outdoor side temperature wrap and the indoor side temperature wrap are filled with gas-liquid phase change materials and communicate through a summer energy storage pipe and a winter energy storage pipe. According to the self-operated enclosure structure energy storage system, the positions of the phase change materials can be automatically adjusted according to the season and the indoor and outdoor temperature difference, and therefore the problem that in the prior art, the energy saving benefits of the phase change materials cannot be obtained to the maximum degree is solved.

Description

technical field [0001] The invention relates to the technical field of building energy conservation, in particular to a self-supporting enclosure structure energy storage system based on gas-liquid-solid-liquid coupling phase transition. Background technique [0002] Proper passive design of buildings, especially of building envelopes, has been recognized as a key aspect in reducing the increasing heating and cooling needs of buildings. Phase change materials have high energy density in a small temperature range, so the application of phase change materials in building envelopes has been extensively studied. A large number of research results also show that the addition of phase change materials can make the envelope structure obtain good benefits in terms of reducing cold / heat loads and weakening load peaks. [0003] However, most of the existing research and disclosed technical solutions fix the phase change material in the middle, inside or outside of the enclosure struc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/76E04B1/74F24F5/00F28D20/02
CPCE04B1/74E04B1/762F24F5/0021F28D20/028Y02E60/14
Inventor 王平李文菁苏欢李游
Owner HUNAN INSTITUTE OF ENGINEERING
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