You all need to know about Water supply and distribution system

HAILI Pipe

Oct/17/2022

You all need to know about Water supply and distribution system

The pipeline system for delivering and distributing water to users in a water supply project is also called a water supply network. It includes water pipelines, water distribution pipelines, pressurized pump stations, water towers, pools, and auxiliary facilities of the pipeline network. The pipes and channels from the water source to the water plant only play the role of conveying water, which is called the water transmission pipe network; the pipes coming out of the water plant are called the water distribution pipe network.

The layout of the water supply network

The layout of the water supply pipe network can be divided into a dendritic pipe network and a ring pipe network according to urban planning, user distribution, and water requirements. It can also be mixed according to different situations.

(1) Dendritic pipe network: The arrangement of trunk and branch pipes is like the relationship between trunks and branches. It is usually used in areas with long and narrow terrain, small water consumption, and scattered users.

(2) Ring-shaped pipe network: It means that the water supply main pipes are connected by connecting lines to form many closed rings.

How to choose the diameter of the water supply pipeline?

The diameter of each pipe section of the water supply is determined by both the flow rate and the flow rate.

When the flow rate is constant, if the selected flow rate is large, the pipe diameter will be small and the pipeline cost will be low. However, the flow rate will lead to large head loss, which will increase the height of the water tower and the overhead of pump operation; on the contrary, if the selected flow rate is small, the diameter of the pipe will be large. Although the head loss and regular operating costs can be reduced, it will increase the pipeline cost.

Therefore, when determining the diameter of the pipe, an economic comparison should be made to make the total cost of water supply. The traditional method is to apply the economic flow rate, and the modern method is to use the optimal design method.

The layout of the water supply network

The layout of the water supply pipe network has two basic forms: branched and annular. In the former, the trunk and branch pipes are distinct and form a dendritic shape; in the latter, the pipes are connected vertically and horizontally to form a ring. The water supply pipe network is formed by connecting many water pipes. The water pipe materials can be divided into non-metallic pipes (reinforced concrete pipes, plastic pipes, reinforced glass fiber pipes, steel-plastic composite pipes, steel sleeve prestressed reinforced concrete pipes, etc.) and metal pipes (cast iron pipes). pipes, ductile iron pipes, steel pipes, etc.).

What is a water supply riser, water supply main pipe, water supply branch pipe

The vertical water supply pipe is called the water supply pipe.

Trunk pipes and branch pipes are like tree trunks and branches. Those with branch pipes are called trunk pipes, and the branch pipes on the trunk pipes are called branch pipes.