本设计工程为扬州某高层酒店，建筑高度为39.5m，属于高层建筑，1层为商用部分，2-10层为酒店部分。由于市政管网的水压为0.25MPa,不能满足高区用水要求，故考虑二次加压,采用水泵变频调速供水。其中1-3层为低区由市政直供，4-10层为高区,高区由生活水泵加压供水。本次建筑住宅部分卫生间排水采用不同层排水，卫生间设专用通气立管，其他排水管仅设置伸顶通气。本建筑为二类公共建筑，防火等级为一级，需设置室内外消火栓系统，以及自动喷水灭火系统。本建筑室内消火栓用水量为20 L/s，室外用水量为40 L/s，火灾延续时间2h；地下室自动喷水灭火系统用水量为1280 L/min，火灾延续时间1h，下部的商铺，上部的酒店皆需设置自喷系统，地上部分火灾危险等级为中危险级Ⅰ级，地下室火灾危险等级为中危险级II级。本建筑屋面雨水，由雨水斗收集汇入市政雨水管网。

The design project is a high-rise hotel in Yangzhou, with a height of 39.5m. It belongs to a high-rise building. The first floor is a commercial part and the second to tenth floors are a hotel part. Because the water pressure of municipal pipeline network is 0.25 MPa, which can not meet the water demand of high area, the secondary pressure is considered and the variable frequency speed water supply is adopted. Among them, 1-3 layers are supplied directly by municipal government, 4-10 layers are high, and high areas are supplied by domestic water pumps. In this building, some toilets are drained by different layers. The toilets are equipped with special ventilation standpipes, and other drainage pipes are only equipped with roof extension ventilation. This building is a second-class public building with a first-class fire prevention grade. It needs to set up indoor and outdoor fire hydrant system and automatic sprinkler fire extinguishing system. The indoor hydrant water consumption is 20 L/s, the outdoor water consumption is 40 L/s, and the fire duration is 2 hours; the basement automatic sprinkler fire extinguishing system water consumption is 1280 L/min, the fire duration is 1 hour, the shops in the lower part and the hotels in the upper part all need to install the self-sprinkler system. The fire danger grade of the above ground part is dangerous grade I, and the basement fire danger grade II is dangerous grade. Rainwater on the roof of the building is collected by rain buckets and fed into the municipal rainwater pipe network.

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