Underwater water curtain method for controlling salt tide of estuary

A salt tide and water curtain technology, applied in water conservancy projects, hydraulic models, marine engineering and other directions, can solve the problems of low operation efficiency, waste of manpower and material resources, and high cost, and achieve the effect of enhancing purification capacity and reducing river salinity.

Active Publication Date: 2018-11-30
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing traditional salt suppression method consumes a lot of manpower and material resources in operation, resulting in high cost and low operation efficiency

Method used

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  • Underwater water curtain method for controlling salt tide of estuary
  • Underwater water curtain method for controlling salt tide of estuary
  • Underwater water curtain method for controlling salt tide of estuary

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0030] A kind of underwater water curtain method that is used for estuary pollution control, comprises the following steps:

[0031] Use the stations arranged in the estuary area to monitor the upstream runoff, open sea tide level and upstream salinity in the area, and build a long-sequence database;

[0032] Through the analysis of time series, the relationship between upstream runoff, open sea tide level, upstream salinity and local salinity is studied; with the help of statistical methods such as correlation, an empirical model for forecasting local salt tides is formed. The forecast formula is as follows:

[0033] C=F(Q,H,C 上 ) (1)

[0034] In the formula: Q is the measured upstream flow ...

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Abstract

The invention discloses an underwater water curtain method for controlling a salt tide of an estuary. An observation station arranged in an estuary area is utilized to monitor upstream runoff, open sea tide level and upstream salinity of the area to construct a database of long sequences; the change relationship of the upstream runoff, the open sea tide level and the upstream salinity and local salinity is studied, and an empirical model forecasting the local salt tide is formed by means of statistical means such as relevance. According to the underwater water curtain method, by sucking upperlayer fresh water and make the fresh water sprayed out from the bottom, bottom salt water mass stirring is started and promoted, a salt water wedge structure is damaged, and the riverway salinity is reduced. The water spraying amount is automatically adjusted according to locally forecasted salinity, the water spraying amount is reduced when the salinity is low, and the water spraying amount is improved when the salinity is high, the salt water mass comes into full contact with the fresh water, the riverway salinity is reduced, and the basis is provided for taking water from the estuary area.

Description

technical field [0001] The invention relates to an underwater water curtain method for preventing and controlling salty tides in estuaries, and belongs to the research field of salty tide suppression in estuaries. Background technique [0002] The estuary region, where the ocean meets the river, is one of the most economically active and densely populated regions in the world. With the rapid development of society and economy, the development and utilization of resources in the estuary area has become more and more in-depth, and the salt tide problem has also followed, which directly affects the fresh water supply for residents' lives, farmland irrigation, and urban industrial production in the estuary area. Therefore, it is of great practical significance to effectively restrain the upward movement of the salt tide in the estuary. The existing traditional salt suppression method consumes a lot of manpower and material resources in operation, resulting in high cost and low ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B1/02E02B3/00
CPCE02B1/02E02B3/00
Inventor 王青孔俊吴彦孙杰韩笑
Owner HOHAI UNIV
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