Concrete prefabricated floor slab with built-in energy
storage tank

(10) WO 2021/089028

(22) 06.11.2020

(43) 14.05.2021

(57) Disclosed is a concrete prefabricated floor slab with a built-in energy storage tank, the concrete prefabricated floor slab comprising concrete, reinforcing steel bars and connecting members. The reinforcing steel bars, and a reinforcement mesh frame integrated with an energy storage tank are placed in a prefabricated formwork, and then the concrete is poured for prefabricated forming. The two opposite ends of the concrete prefabricated floor slab with a built-in energy storage tank are provided with reinforcement heads, which are used for connection with other reinforcing steel bars, for connection with other structures. Concrete pouring is used for improving the strength. The energy storage tank is a tubular tank body with both ends being sealed and filled with an energy storage liquid, and the tubular tank body is provided with a pipe port for filling the energy storage liquid and gas. The energy storage tank is internally provided with an expansion space for thermal expansion and cold contraction of the energy storage liquid, and the energy storage tank is filled with gas higher than the atmospheric pressure, such that the energy storage tank forms a rigid body. A filling pipe opening of the energy storage tank is provided with a pressure relief safety valve, with an opening of the pressure relief safety valve facing downwards and being sealed with cement grout. When there is a fire, the energy storage liquid in the energy storage tank is vaporized at a high temperature to generate high vapor pressure, such that the pressure relief safety valve is opened to perform spray fire-extinguishing for an indoor fire.

(71) ZIBO ENVIRONMENTAL PROTECTION TECHNOLOGY CO. LTD, Shandong 255000 (CN).

(84) ARIPO (BW, GH, GM, KE, LR, LS,
MW, MZ