Technical documentation for the construction of a 9-storey residential building - Water supply and sewerage system - exchange rate

Contents

Paper

Introduction

1. Internal water supply system

1.1. Selects the plumbing scheme and system. Selection of norms

water consumption

1.2. Define Estimated Input Charges

1.3. Calculating Input Data to Build an Input Profile

1.4. Water meter selection

1.5. Hydraulic calculation of internal water supply network. Definition

required head on input

1.6. Select and Recommend Enhancement Devices

to placement

2. Sewerage system

2.1. Determination of estimated costs for riser and outlet

Checking Network Element Throughput

2.2. Calculation of elevations in connecting structures

intra-quarter and urban outdoor network. High-rise

installation of the release

2.3. Determination of estimated wastewater flow rates for

sections of the intra-quarter sewerage network

2.4. Hydraulic calculation of external sewage network

2.5. Calculating the Source Data for External Network Profile

3. Material and Equipment Specification

4. Conclusion

5. List of sources used

Introduction

Water supply and sewerage systems are complex engineering structures and devices that provide water supply to consumers, as well as waste water removal and treatment.

Internal water supply systems include: inlets, water metering units, risers, main and outlet networks with connections to sanitary devices or process units, water collection and control valves (cranes, mixers, valves, etc.). In addition to the main elements, the systems can have pumping units, pneumatic units, water tanks, devices for automatic control over their operation.

Depending on the purpose of the building and the requirements for waste water removal, the following internal sewage systems should be designed: domestic, industrial, combined. Rainwater is drained by a network of internal drains.

The design and calculation of the water supply and sewerage networks are related to the selection of such a complex of structures, which would ensure the supply and diversion of the required amounts of water with given heads at the lowest cost both for its construction and operation over the accepted design period. The main factors that may form the basis of the design should be considered: the size of water consumption for a certain design period, planned dimensions, topographic and geological conditions, the degree of improvement of the territory of the object, storey, the main purpose of water, the cost of construction materials and equipment.

Calculates the source data for the external network profile.

The longitudinal profile of the designed sewerage network is drawn along the pipe axis from the point of connection to the city sewerage system to the outlet farthest from it. When drawing, the scales are observed: vertical 1:100, horizontal 1:500.

The profile is drawn from a standard grid. The sewer network profile is drawn up according to hydraulic calculation data with indication of absolute elevations of the ground surface, locations of wells, intersections with underground communications, total length of the network and material of sewer pipes.

4. Conclusion

The project of the system of internal water supply and drainage of a 6-storey building for 48 apartments has been completed. During the course work, the following were calculated:

39,1

1) Maximum second flow rate at input 1.460 l/s

2) Maximum hourly flow 3.422 m3/h

3) The required head at the input was - 30.268 m.., which is less than the warranty head -38.84m. No booster devices are required.

4) The diameter of the water pipeline inlet is accepted as 50 mm, the slope of laying pipelines in the building is 0.002. One-stage impeller water counter (Dy = 40mm) is installed.

5) Waste water flow rate in one outlet -2.131 l/s, number of outlets - 4, d = 100 mm, slope - 0.02.

6) Waste water flow rate of the building -8.99 l/s, slope of the intra-quarter network - 0.02.

курсовичок1.dwg