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A PHC pipe pile phase change energy storage system and its construction method

A PHC pipe pile and phase change energy storage technology, which is applied to sheet pile walls, heat storage equipment, infrastructure engineering, etc., to achieve the effects of long energy storage time, improved energy storage, and increased heat storage function

Active Publication Date: 2016-01-20
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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  • A PHC pipe pile phase change energy storage system and its construction method
  • A PHC pipe pile phase change energy storage system and its construction method

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Experimental program
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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 vertical return water branch pipes 6 and energy storage materials Maintenance pipe 4, wherein, the water supply main pipe 8 is arranged at the center of the cavity, and the several return water branch pipes 6 are vertically arranged around the water supply main pipe 8 and are bent at the pile tip and converged to communicate with each other for energy storage The material maintenance pipes 4 are arranged on both sides of the cavity, and two energy storage materia...

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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 pre-tensioned prestressed centrifugal forming technology, and after steam curing at 10 atmospheres and 1800 ° C, the standard 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 the side resistance and the end resistance. A variety of soils such as strong weathered rock stratum, fully weathered rock stratum, hard clay layer or dense sand layer (or pebble layer) can be selected as the bearing layer, and for 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 build...

Claims

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Application Information

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