Cascade pumping station regulated reservoir system based on water balance

A water balance and reservoir technology, which is applied in the fields of agricultural irrigation and urban water supply, can solve the imbalance between the pumping station and the actual water demand, insufficient agricultural irrigation and urban water supply, and mismatch between water supply and water demand, etc. problems, to achieve the effect of rational utilization, high engineering applicability and energy saving

Active Publication Date: 2019-03-08
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

Due to the climatic conditions of high evaporation and low rainfall in Northwest China, crops have the characteristics of large water demand and long irrigation cycle. The water supply and water demand of the pumping station irrigation system often do not match. It is greater than the amount of water used for agricultural irrigation and urban water supply, resulting in waste of water. In the dry season, the amount of water pumped by the pump station is not enough for agricultural irrigation and urban water supply. Creates waste and, therefore, an imbalance between the pumping station's pumping capacity and the actual water demand

Method used

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  • Cascade pumping station regulated reservoir system based on water balance
  • Cascade pumping station regulated reservoir system based on water balance

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Embodiment 1

[0016] Embodiment 1: A kind of cascade pumping station storage tank system based on water volume balance, such as figure 1 As shown, it includes two parallel water-lifting pipelines and cascade pumping stations 3 arranged at multi-level intervals. The two water-lifting pipelines pass through the cascade pumping stations 3 at all levels to form two parallel water-lifting lines, and the water is transported from the low water level through the The cascade pumping stations at all levels are pumped to the highest water level. The two water-lifting pipelines are the first water-lifting pipeline 1 and the second water-lifting pipeline 2 respectively. The first water-lifting pipeline 1 and the second water-lifting pipeline 2 are respectively equipped with control water-lifting pipes The opening and closing of the water supply valve, through the water supply valve controls the opening and closing of the corresponding water lifting pipeline, the first water lifting pipeline 1 and the se...

Embodiment 2

[0021]Embodiment 2: A cascaded pumping station adjustment and storage tank system based on water volume balance in this embodiment will be described with a different point center from that in Embodiment 1.

[0022] like figure 2 As shown, the water outlet of the storage tank is connected to a plurality of farmlands through a plurality of tributaries respectively, and the open channel is respectively connected to a plurality of farmlands through a plurality of tributaries. Taking No. 3 farmland 53 as an example, No. 3 farmland 53 is connected to The water outlet of the No. 1 storage tank 51 is connected, and the No. 3 farmland 53 is connected with the No. 1 open channel through the tributary open channel 8 at the same time, and the capacity of the No. 1 storage tank is V 1 , the amount of water required for the irrigation period of No. 1 farmland 51 and No. 3 farmland 53 is W 1 , W 3 , the flows of No. 1 open channel 61 and branch pipe 7 are respectively q 1 and q 3 , the ...

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Abstract

The invention relates to the technical field of agricultural irrigation and urban water supply, in particular to a cascade pumping station regulated reservoir system based on water balance. The cascade pumping station regulated reservoir system comprises two parallel water lifting pipelines and multiple stages of cascade pumping stations at intervals. The two water lifting pipelines form two parallel water lifting circuits through the cascade pumping stations. The two water lifting pipelines are each provided with an upper water valve for controlling the corresponding water lifting pipeline tobe opened and closed. At least one of the water lifting pipelines is opened. The water lifting pipelines are communicated with a farmland through an open channel to provide a first irrigation water path. A regulated reservoir is arranged between every two adjacent cascade pumping stations. The water inlet ends of the regulated reservoirs are communicated with the water lifting circuits. The wateroutlet ends of the regulated reservoirs are communicated with the farmland to provide a second irrigation water path. The two water supply circuits supply water to the system, the water lifting amount can be adjusted according to actual conditions, the regulated reservoirs are arranged between the pumping stations, and agricultural irrigation water can be supplemented through the regulated reservoirs in the drought period.

Description

technical field [0001] The invention relates to the technical fields of agricultural irrigation and urban water supply, in particular to a cascade pumping station regulation and storage pool system based on water volume balance. Background technique [0002] The cascade pumping station water delivery system consists of pumping stations (pumps, motors, other auxiliary devices, etc.), water outlets, channels and other equipment. The rational allocation of water resources is realized through pumping stations and pipelines. [0003] At present, cascade pumping stations have been widely used in agricultural irrigation, urban water supply, etc., and the role of cascade pumping stations in the arid areas of Northwest China is particularly important. Due to the climatic conditions of high evaporation and low rainfall in Northwest China, crops have the characteristics of large water demand and long irrigation cycle. The water supply and water demand of the pumping station irrigation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03B11/16E03B1/02E03B5/00E03B7/07E03B7/09E02B13/00
CPCE02B13/00E03B1/02E03B5/00E03B7/078E03B7/09E03B11/10
Inventor 徐存东连海东张宏洋张茂林王喆朱兴林李振
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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