Research on the construction and application of group fire water supply system under the background of the increase of green buildings

With the acceleration of the urbanization process, the development of green buildings and green group fire-fighting pipeline construction technology has become an urgent need to improve the fire safety of smart cities. At present, there are still many weak links in the group fire control at the level of large-scale green city clusters. In this paper, the green city building group A is taken as an example, the group fire water supply system is constructed, and the EPANET simulation software is used to optimize the fire water supply measures. Through this research, the fire water supply system of green city buildings is divided into regional constant high pressure and temporary high pressure fire water supply system according to the pressure. When a fire occurs, the most unfavorable hydrant nozzle is simulated with the diffuser of the node in EPANET, and the optimal value of the diffuser coefficient is 1.342. In addition, a three-dimensional topological model of the outdoor fire-fighting pipe network of the temporary high-pressure fire-fighting water supply system of a green city building was established, and the water supply route for the partition of the indoor fire hydrant system was formulated. EPANET software is used for the optimized design of the group fire protection pipe network. It is feasible to adjust the pressure after the pressure reduces valve group of the fire pump room in the southeast area of this study from 0.8 MPa to 0.6 MPa. The optimized scheme in this paper realizes the sharing of pools, pump rooms, and water tanks of the three regional fire water supply systems. Compared with the independent operation of each system, it improves the fire fighting efficiency and increases the reliability of fire water supply.