Selection and layout of garden irrigation system

Irrigation is an important measure to make up for the lack of natural precipitation in quantity and the unevenness of time and space, and to ensure that the water needed for lawn growth is met in a timely and appropriate amount. Sprinkler irrigation is more and more recognized by people for its advantages of water saving, energy saving, labor saving and high irrigation quality.
In recent years, lawn sprinkler irrigation has developed rapidly and has a trend of gradually replacing artificial ground irrigation. The design and management of the sprinkler irrigation system must adapt to the characteristics of the lawn to meet its water requirements and ensure normal growth.

A complete sprinkler irrigation system generally consists of sprinklers, pipe networks, headers and water sources.
1. Sprinkler: The sprinkler is used to disperse water into droplets, and spray it on the lawn planting area more evenly like rain.
2. Pipe network: Its function is to transport and distribute pressurized water to the lawn planting area that needs to be irrigated. It is composed of pipes of different pipe diameters, divided into main pipes, branch pipes, capillary pipes, etc., through various corresponding pipe fittings, valves and other equipment to connect all levels of pipelines into a complete pipe network system. The pipe network of modern irrigation systems mostly uses plastic pipes such as PVC pipes and PE pipes that are easy to construct, have good hydraulic properties and will not rust. At the same time, necessary safety devices, such as intake and exhaust valves, pressure limiting valves, drain valves, etc., should be installed in the pipe network as required.
3. The first part: its function is to take water from the water source, pressurize the water, water quality treatment, fertilizer injection and system control. Generally include power equipment, water pumps, filters, fertilizer applicators, pressure relief valves, check valves, water meters, pressure gauges, and control equipment, such as automatic irrigation controllers, constant pressure frequency conversion control devices, etc. The number of the first equipment may increase or decrease depending on the system type, water source conditions and user requirements. For example, in the case of using urban water supply systems as water sources, pressurized water pumps are often not required.
4. Water source: Well springs, lakes, reservoirs, rivers and urban water supply systems can all be used as sprinkler irrigation water sources. Throughout the growing season of the lawn, the water source should have a reliable water supply guarantee. At the same time, the water quality of the water source should meet the requirements of irrigation water quality standards.

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