1．基本资料…………………………………………………………………..
1.1设计技术依据……………………………………………………………..
2．设计任务…………………………………………………………………..
3．设计步骤…………………………………………………………………..
3.1规划步骤…………………………………………………………………
3.1.1水源工程……………………………………………………………..
3.1.2首部枢纽……………………………………………………………..
3.1.3输配水管网……………………………………………………………
3.1.4灌水器的布置………………………………………………………….
3.2设计参数…………………………………………………………………
3.2.1灌水小区允许水头偏差计算……………………………………………….
3.2.2土壤湿润比……………………………………………………………
3.2.3设计灌水定额………………………………………………………….
3.2.4设计灌水周期………………………………………………………….
3.2.5一次延续灌水时间………………………………………………………
3.2.6初定系统最大轮灌组数…………………………………………………..
3.3灌水小区的水力设计………………………………………………………..
3.3.1灌水小区允许水头（流量）偏差率………………………………………….
3.3.2小区允许水头的分配…………………………………………………….
3.3.3毛管极限孔数和极限长度…………………………………………………
3.4管网布置…………………………………………………………………
3.5系统工作制度……………………………………………………………..
3.6各级管道设计流量的确定…………………………………………………….
3.7管网水力设计……………………………………………………………..
3.7.1毛管水头损失………………………………………………………….
3.7.2支管设计……………………………………………………………..
3.7.3支管水头损失………………………………………………………….
3.7.4干管设计……………………………………………………………..
3.7.5干管水头损失………………………………………………………….
3.7.6毛管进口工作水头………………………………………………………
3.7.7支管进口工作水头………………………………………………………
3.8水头偏差率复核……………………………………………………………
3.8.1毛管水头偏差率………………………………………………………..
3.8.2支管水头偏差率………………………………………………………..
3.8.3灌水小区水头偏差率…………………………………………………….
3.8.4主干管进口工作水头…………………………………………………….
3.9系统总扬程……………………………………………………………….
4．首部枢纽设计……………………………………………………………….
4.1过滤器设计……………………………………………………………….
4.2施肥器设计……………………………………………………………….
4.3机泵选配…………………………………………………………………
5蓄水池设计…………………………………………………………………..
6材料设备用量…………………………………………………………………
参考文献……………………………………………………………………..
摘 要
滴灌技术是当今世界上最节水的一种与机械化配套、易于实现自动化控制，特别适宜于果树、蔬菜、设施农业和干旱缺水地区生态环境治理、大田行播作物种植的一种现代化精准灌水技术，它是微灌的最主要的组成部分。滴灌工程的成功首先是规划设计必须合理，合理的规划设计是建立在正确认识和运用这一技术的基础之上的，其次对滴灌工程规划布置、设计技术参数的确定、滴灌灌溉制度、滴灌系统的水力计算、首部枢纽的设计等过程要有清晰的认识。
关键字 节水灌溉 微灌 滴灌
Abstract
Drip irrigation is one of the world’s one of the most water is easy to realize automatic control and mechanical equipment, and is especially suitable for fruit, vegetables, agricultural facilities and arid area ecological environment, field row crop planting a modern precision irrigation technique, it is the most important part of the micro irrigation. Drip irrigation is the first successful planning and design must be reasonable, reasonable planning and design is built on the basis of the correct understanding and use of this technology, the layout and design of drip irrigation technology parameters, drip irrigation, drip irrigation system hydraulic calculation, the first hub design process should be clear understanding.
Keywords water-saving irrigation
