Spraying cooling method and cooling system for thick and large cavity transparent film lighting roof

Abstract

The invention discloses a spraying cooling method and cooling system for a thick and large cavity transparent film lighting roof. According to the spraying cooling method for the thick and large cavity transparent film lighting roof, starting and stopping of a spraying pump are determined according to the factors such as the working time, the temperature of the outer surface of the roof and the lowest temperature maintained by the outer surface of the roof through single spraying, thus, under the condition that the comfort of indoor personnel is ensured, the cooling effect and energy-saving potential of the thick and large cavity transparent film lighting roof are improved, multiple targets such as thermal comfort of the indoor personnel and energy and water saving of a building are achieved, and the initial investment of equipment such as a water storage tank and a water pump can be reduced.

Description

technical field [0001] The invention relates to the field of building technology, in particular to a method for spraying and cooling a daylighting roof with a thick and large cavity transparent film and a cooling system. Background technique [0002] With the continuous improvement of people's requirements for building appearance and internal environment, transparent roofs with large areas are widely used in large public buildings. The thick and large cavity transparent film daylighting roof is composed of two or more layers of PVC, PTFE or ETFE transparent film, and the middle is filled with air to form an air pillow as a building roof. It has the advantages of high transparency and good thermal insulation performance. The solution to fire safety issues has gradually become the first choice for large public building roofs. [0003] Although the thick and large cavity transparent film lighting roof can effectively improve the indoor natural lighting environment and reduce t...

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Problems solved by technology

[0004] However, the existing patents mainly focus on the improvement and optimization of the cooling system hardware, while ignoring the reasonable determination of the start-stop temperature of the spray and the proposal of the operation control strategy, which limits the application of the spray cooling system for the thick and large cavity transparent film daylighting roof. Cooling effect and energy saving potential, and a great waste of water resources

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