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Application of solar-energy-phase-change heat storage technology and waste heat recovery technology to prefabricated concrete member maintenance process

A technology of prefabricated concrete and phase change heat storage, which is applied in solar thermal energy, solar thermal power generation, solar collectors, etc., can solve the problems of high energy consumption, achieve energy saving, reduce maintenance process energy consumption, and reduce carbon emissions.

Active Publication Date: 2016-09-07
BEIJING UNIV OF TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the production process of precast concrete components, in order to achieve the required demoulding or prestressed tensile strength, it not only takes up to 10-18 hours of curing time, but also needs to provide a large amount of heat for the curing process, which is high energy consumption Processing technology

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  • Application of solar-energy-phase-change heat storage technology and waste heat recovery technology to prefabricated concrete member maintenance process
  • Application of solar-energy-phase-change heat storage technology and waste heat recovery technology to prefabricated concrete member maintenance process

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Embodiment Construction

[0025] Based on the optimized maintenance process of precast concrete components, return air outlets, ventilation ducts and axial flow fans are set under the precast concrete component formwork in the heating room, and air supply outlets and ventilation ducts are set under the precast concrete component formwork in the cooling room. The construction area of ​​the heating room and cooling room is 500 square meters, and the air volume of the fan is 18000m 3 / h, the size of each air outlet is 800mmx200mm, the wind speed is 2m / s, the distance between the air supply port and the bottom of the mold table is 150mm, and the wind speed in the air duct is 3m / s to 7m / s. The low-temperature air under the mold table of the heating room is sent to the mold table of the cooling room through the ventilation duct and the fan, and blows to the mold table. The low-temperature air is forced to exchange heat with the 50-60°C prefabricated concrete components that come out of the constant temperatur...

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Abstract

The invention provides application of a solar-energy-phase-change heat storage technology and a waste heat recovery technology to a prefabricated concrete member maintenance process and belongs to the field of application of renewable energy sources. A device comprises solar air collectors, a heating chamber, a constant-temperature chamber and a cooling chamber. Each solar air collector is provided with a supply air duct, a return air duct and a first fan. A first supply air opening and a first return air opening are formed in the constant-temperature chamber. A second supply air opening and a second return air opening are formed in the heating chamber. A return air opening, below prefabricated concrete members, in the heating chamber, a first return air duct, a second fan, a first supply air duct and a supply air opening, below the prefabricated concrete members, in the cooling chamber are sequentially connected. A suction hood, above the prefabricated concrete members, in the cooling chamber, a second return air duct in a waste heat recovery system, a third fan, a second supply air duct in the waste heat recovery system and a rotational flow air supply opening are sequentially connected, and the rotational flow air supply opening communicates with the heating chamber. By the adoption of the application of the solar-energy-phase-change heat storage technology and the waste heat recovery technology to the prefabricated concrete member maintenance process, the energy consumption of the prefabricated concrete member maintenance process is lowered, and carbon emission is reduced.

Description

technical field [0001] The invention relates to a high-efficiency energy-saving technology that comprehensively applies solar energy-phase change heat storage technology and waste heat recovery technology to the maintenance process of prefabricated concrete components, and belongs to the field of renewable energy applications. Background technique [0002] With the rapid development of urbanization in my country, housing industrialization has become a development trend, and it has also brought opportunities for the development of the precast concrete component production and processing industry. However, in the production process of precast concrete components, in order to achieve the required demoulding or prestressed tensile strength, it not only takes up to 10-18 hours of curing time, but also needs to provide a large amount of heat for the curing process, which is high energy consumption processing technology. The current maintenance process of precast concrete componen...

Claims

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Application Information

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IPC IPC(8): F24J2/04F24F7/08B28B11/24F28D20/00F24F13/02F24F5/00F24F12/00
CPCB28B11/24B28B11/245F24F5/0046F24F7/08F24F12/00F24F13/02F24F2005/0064F24S10/00F28D20/00Y02B30/56Y02E10/44Y02E60/14Y02E70/30Y02P80/15
Inventor 陈超于楠李印张明星凌浩恕李娜
Owner BEIJING UNIV OF TECH
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