A partitioned underground continuous wall for phase change heat storage
An underground continuous wall and phase-change heat storage technology, which can be used in household heating, application, sheet pile walls, etc., can solve problems such as unfavorable construction costs, and achieve the effects of controlling construction costs, efficient heat exchange, and strengthening heat exchange capabilities
Active Publication Date: 2021-11-30
CHINA UNIV OF MINING & TECH
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Problems solved by technology
[0004] However, the existing underground diaphragm wall needs to provide a certain protective support in the initial stage, so most of them adopt reinforced concrete structure. After the underground structure is excavated and poured, the underground diaphragm wall will no longer take on the role, which will undoubtedly control the construction cost. unfavorable
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Embodiment 1
[0042] see figure 1 , a partitioned underground continuous wall that can be used for phase change heat storage, including a ground connection wall body 1, and a steel plate 2 is embedded and connected in the ground connection wall body 1, and the steel plate 2 separates the ground connection wall body 1 into partitions outside the ground connection wall And the inner partition of the ground connection wall, the outer partition of the ground connection wall and the inner partition of the ground connection wall are respectively pre-embedded with a plurality of uniformly distributed ordinary heat exchange tubes 3 and variant heat exchange tubes 4, and the common heat exchange tubes 3 and variant heat exchange tubes The heat exchange tubes 4 are all arranged vertically, and the partitions in the ground connection wall are also filled with phase change heat storage materials 5 wrapping the variable heat exchange tubes 4. The variable heat exchange tubes 4 include a heat exchange tub...
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The invention discloses a partitioned underground diaphragm wall which can be used for phase change heat storage, and belongs to the technical field of underground diaphragm wall construction. The invention can realize the partitioning of the existing underground diaphragm wall and facilitate the internal layout of the underground diaphragm wall before pouring At the same time, the lower variable heat exchange tubes are pre-buried. During the construction of the underground diaphragm wall, concrete is poured into the steel plates. The concrete is taken out, and then the phase change material is filled inside the steel plate, and the expansion action of the heat exchange tube is triggered to extend in the phase change material, effectively increasing the heat exchange area, efficiently extracting the heat of the soil around the underground diaphragm wall, and strengthening the energy underground. The heat exchange capacity of the structure can not only assist the underground structure in energy recovery, but also effectively control the construction cost of the underground diaphragm wall, which is conducive to the popularization and application of the underground diaphragm wall.
Description
technical field [0001] The invention relates to the technical field of underground diaphragm wall construction, in particular to a zoned underground diaphragm wall that can be used for phase change heat storage. Background technique [0002] The underground diaphragm wall is a kind of trenching machine used on the ground for basic engineering. Along the peripheral axis of the deep excavation project, a long and narrow deep trench is excavated under the condition of mud retaining wall. After the trench is cleaned, it is hung in the trench Reinforcement cages, and then use the conduit method to pour underwater concrete to form a unit trough section. In this way, a continuous reinforced concrete wall is built underground as a water interception, anti-seepage, load-bearing, and water-retaining structure. [0003] Diaphragm walls have been and are being used in many aspects of foundation engineering instead of many traditional construction methods. In its initial stage, it is ba...
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IPC IPC(8): F28D20/02F24T10/00E02D5/18E02D19/18
CPCF28D20/021F24T10/00E02D5/18E02D19/18Y02E60/14Y02E10/10
Inventor 孙猛李晓昭岳丰田张东海魏京胜高涛吴学慧
Owner CHINA UNIV OF MINING & TECH