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The following article was published in our article directory on August 28, 2010.
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Small high-rise residential design residential water supply and fire Probe

Article Category: Business

Author Name: Amanda xzh

1 Introduction

10-15 layers of a composite from the five smallHigh-rise buildingComposition . The underground garage as well as equipment for the 1st floor space ; 1,2- tier hospitals , clubs, shopping centers; three layer channel conversion layer ; 4 layer above the standard level residential . Residential floor area of 650m2Six units, a total of 300 . The residential gross floor area of 32000m2Building height of 48.50m.

2 Water System Design

2.1 water consumption and water

The basement and podium residential maximum daily water consumption is 60m3, Tower (Residential ) of 300m3A total of 360m3. Water as tap water , from municipal water district south of the introduction of a DN200mm trunk water supply , access to life underground storage tank 1 level (100m3) And the fire tank (367m3) as the cell interior life , fire water supply source . Day face settings 18m3A fire water tank to ensure water for the fire early .

2.2 Water Supply

Community public life , both domestic and fire water separate settings , in which two systems of life to the water . Water System supply of low- G 3 1 layer to the ground floor of the public water supply , separate water meter based measurement, direct from the city water supply pipe network in order to make full use of urban pipe network water pressure . And over four floors with Variable Speed Pump Water Supply System .

Taking into account more than four and no adjustment water system tank floor , so water mass flow by pressure pump selection . Pump run time , while in the Variable Frequency combinations to suit a variety of different water flow changes , use three main pump , two small pumps with a small pressure tank . Three main pump with two ( one of the constant speed , a variable speed ) for a preparation, frequency control devices can be several sets of main pump switch between each other . Night when the small flow start small pump and pressure tank water supply together to save water consumption .

Water supply system for the vertical division of residential water pressure distribution , and over four floors in the water district 's four - six meters before the horizontal tube , the set of new adjustable pressure reducing valve to control the water pressure set Within the region , part floor to avoid the phenomenon of super- pressure , water supply system to ensure the normal operation and use .

3 Fire Design

The regional concentration of high-rise residential indoor use of temporary high-pressure fire water supply system ,Fire PumpRoom ( and life pump combination ) in the basement , fire tank volume of 367m3, indoor storage 2hFire HydrantWater 270m3 and 1hSprayWater 97m3. In the 15 story tower roof with early (10min) 18m fire water3. Day surface water from the living water pump fire water supply .

3.1 Fire Hydrant System

Fire hydrant water for the 10L / s, outdoor fire hydrant water for the 15L / s, the fire duration design by 2.0h . Basic flow of the system are: dedicated storage pool → Fire → Fire pump tube and the total distribution of the ring trunk → Building the fire tower loop pipe network.

Each building 's fire exit bolt fire hydrant water supply system is not greater than hydrostatic pressure 0.8MPa. Pipeline in the negative layer , three- day surface layer and the equipment are connected into a ring . Fire pumps ( 1 with a prepared ) of water mains outside the room in a ring pumps were connected with the pipe , open it from the fire box of broken glass on the center control button or the fire in order to ensure that fire can Any fire hydrant water pressure and adequate water .

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