River channel cascade pumping station infiltrating irrigation system

A technology for pumping stations and river courses, which is applied in the field of infiltration irrigation systems with automatic adjustment of water demand, can solve the problems of reducing evaporation, achieve the effect of reducing evaporation, preventing the increase of evaporation, and uniform infiltration irrigation

Active Publication Date: 2020-09-11
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problems and deficiencies existing in the current pipeline irrigation system, and provides a seepage irrigation system of cascade pumping stations in river courses. Human-attended automatic water supply function

Method used

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  • River channel cascade pumping station infiltrating irrigation system
  • River channel cascade pumping station infiltrating irrigation system
  • River channel cascade pumping station infiltrating irrigation system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Northwest my country and other regions have achieved effective use of land resources through the vigorous development of water-lifting irrigation projects. The water source extraction of the Yellow River and its tributaries has the characteristics of a large span, and the altitude difference in some areas is relatively large. The main reason for water-lifting The way is to extract water from the Yellow River through cascade pumping stations. Adopt a river channel cascade pumping station seepage irrigation system, such as figure 1 As shown, starting from the water lifting point of the river, there are multiple stages of water storage and pumping stations in sequence along the altitude or span, and each water storage and pumping station includes a water storage room and a water pump. Due to the wide range of river beaches at the water lifting point and the high cost of external transmission lines, it is suitable to use solar or wind energy for power generation a...

Embodiment 2

[0030] Embodiment 2: On the basis of Embodiment 1, a plurality of interlayers 85 are further distributed at intervals in the composite water delivery channel, such as Figure 4 As shown, liners 86 are vertically fixed on the outer edges of a plurality of spacers 85, and each spacer 85 and liners 86 are matched and set on the inner wall of the composite water delivery channel. The outer edge of each spacer 85 contains a corresponding liner 86 , or the outer edges of multiple spacers 85 are connected to the same liner 86 to form a whole. Each interlayer 85 is matched and clamped in the composite water delivery channel. Figure 4 Each partition 85 in the composite water delivery channel is divided into a plurality of independent areas, and at least one floating valve is wrapped in each independent area. After the composite water delivery channel is divided into multiple independent areas by the interlayer, the accumulated water in adjacent areas will basically not flow with each...

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Abstract

The invention discloses a river channel cascade pumping station infiltrating irrigation system. From a water lifting point of a river channel, a plurality of stages of water storage pumping stations are sequentially and respectively arranged along altitudes or spans; each water storage pumping station comprises a water storage room and a water pump; a water conveying main pipe is led out of the bottom of the water storage room of each stage of pumping station; the side wall of each water conveying main pipe is sequentially connected with a plurality of water conveying branch pipes; each waterconveying branch pipe is respectively connected with a plurality of infiltrating irrigation pipes; and the infiltrating irrigation pipes are distributed along strikes of trenches. Uniform infiltratingirrigation can be implemented, i.e., when a great volume of seepage flow occurs on a certain segment (which generally is an upstream segment) of an infiltrating irrigation pipeline, the rest of segments (which generally are downstream segments) can be lack of sufficient water pressures and water volumes, resulting in non-uniform nfiltrating irrigation distribution, but under the action of a float-closed valve, influence of excessive local water accumulation on the problem of water shortage of the rest of infiltrating irrigation positions can be prevented.

Description

technical field [0001] The invention belongs to the technical field of farmland water conservancy irrigation, and in particular relates to a seepage irrigation system with automatic adjustment of water demand. Background technique [0002] For a long time, my country's agriculture has been using traditional flood irrigation. Flood irrigation consumes the most water and is gradually being replaced by modern water-saving irrigation models. Sprinkler irrigation and drip irrigation have a high degree of water saving, but the one-time investment is high, and the water use efficiency needs to be improved. In addition, sprinkler irrigation will cause surface compaction, drip irrigation will cause surface accumulation of salt, and drippers are easy to block. Seepage irrigation is one of the most advanced agricultural water-saving irrigation technologies in the world after sprinkler irrigation and drip irrigation. It can reduce soil surface evaporation and is the most water-saving ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G25/06A01G25/16
CPCA01G25/06A01G25/16
Inventor 张磊
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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