Phase-change energy storage system of PHC (Prestressed High-strength Concrete) pipe pile and construction method thereof

A PHC pipe pile, phase change energy storage technology, applied in sheet pile walls, heat storage equipment, infrastructure engineering and other directions, to achieve efficient phase change cold storage and phase change heat storage, increase heat storage function, improve the effect of energy storage

Active Publication Date: 2014-04-02
CHINA RAILWAY CONSTR GROUP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the phase transition point of water is at 0°C, the ice storage system can only be used for cold storage

Method used

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  • Phase-change energy storage system of PHC (Prestressed High-strength Concrete) pipe pile and construction method thereof
  • Phase-change energy storage system of PHC (Prestressed High-strength Concrete) pipe pile and construction method thereof

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Embodiment Construction

[0031] Such as Figure 1-2 As shown, the PHC pipe pile phase change energy storage system described in the embodiment of the present invention includes a PHC pipe pile 2. In order to prevent soil from entering the cavity in the PHC pipe pile 2, the bottom end of the PHC pipe pile 2 is provided with a pipe pile Point 1, the cavity of the PHC pipe pile 2 is filled with a high-temperature phase change energy storage material 3, and the cavity of the PHC pipe pile 2 is provided with a water supply main pipe 8, a number of return water branch pipes 6 and energy storage material maintenance pipe 4, wherein the water supply main pipe 8 is arranged at the center of the cavity, the plurality of return water branch pipes 6 are arranged around the water supply main pipe 8, and the energy storage material maintenance pipe 4 is arranged on both sides of the cavity , two energy-storage material maintenance pipes 4 are housed in the cavity, and the two energy-storage material maintenance...

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Abstract

The invention relates to a phase-change energy storage system of a PHC (Prestressed High-strength Concrete) pipe pile and a construction method thereof. The phase-change energy storage system comprises the PHC pipe pile and a pipe pile tip, wherein a cavity of the PHC pipe pile is internally filled with a high-temperature phase-change energy storage material and is internally provided with a water supplying main pipe, a plurality of water returning branch pipes and an energy-storage material maintaining pipe; and the water returning branch pipes are communicated with a water returning main pipe. The phase-change energy storage system and the construction method have the advantages that the space in the PHC pipe pile is provided with a heat exchange pipeline and is filled with the high-temperature phase-change energy storage material, and the phase-change energy storage system with high efficiency and large heat capacity is formed by the heat exchange pipeline, the high-temperature phase-change energy storage material, the PHC pipe pile and rock bodies outside the PHC pipe pile, so that cold storage in winter and heat storage in summer are realized; compared with the existing system, the phase-change energy storage system and the construction method also have the advantages that the space of a building is not additionally occupied, the heat insulation is not needed, the effective energy storage time is long, cold storage or heat storage can be respectively realized and the energy storage efficiency is high.

Description

technical field [0001] The invention relates to a PHC pipe pile phase change energy storage system and a construction method thereof. Background technique [0002] PHC pipe pile, that is, prestressed high-strength concrete pipe pile, is a hollow cylindrical concrete prefabricated component made by adopting the pre-tensioned prestressed centrifugal forming process and undergoing steam curing at 10 atmospheres and 1800 ℃. The section length is 10m, the diameter is from 300mm to 800mm, and the concrete strength grade is ≥C80. [0003] The PHC pipe pile bears the upper load jointly by side resistance and end resistance. Strongly weathered rock stratum, fully weathered rock stratum, hard clay layer or dense sand layer (or pebble layer) and other soils can be selected as the bearing layer. The bearing layer has strong adaptability to the geological conditions with large ups and downs, so it is suitable for a wide range of areas and various types of buildings. Widely used in a v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D20/02E02D5/58E02D7/00
CPCY02E60/145Y02E60/14
Inventor 王宽李蒨刘政
Owner CHINA RAILWAY CONSTR GROUP
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