| 摘要 |
PROBLEM TO BE SOLVED: To obtain a spray system which performs spray exhibiting a temperature-lowering function in a normal time, and can perform spray exhibiting a removing function of floating particulates such as smoke when the floating particulates such as smoke are generated or flow in.SOLUTION: A spray system comprises: spray nozzles (4) which are arranged in an objective zone, and spray water into the objective zone as mist; low-conductivity water sending devices (1a, 2a) which supply low-conductivity water equivalent to water whose conductivity is not higher than 10μS/cm to the spray nozzles; normal water sending devices (1b, 2b) which supply normal water whose conductivity is higher than 10μS/cm to the spray nozzles; and switching mechanisms (3a, 3b) which switch one of the low-conductivity water sending device and the normal water sending device to a starting state, and switch the other to a stopped state. |
