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Water-snail eradication method and tank for culvert and sluice and channel water delivery engineering

A technology for culvert gates and channels, which is applied in the fields of snail control and snail settlement ponds in culvert gates and channel water delivery projects, and can solve the problems of unclear movement and settlement of oncomelania snails, easy blockage of blocking meshes, and sediment deposition, etc.

Inactive Publication Date: 2007-09-05
CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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  • Claims
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Problems solved by technology

[0047] However, the diversion culvert gates on the main embankment of the Yangtze River are affected by the changes in the water level of the Yangtze River. Most of them divert water in intermittent periods, and the annual sediment deposition outside the gates is serious. When the elevation of the water inlet is lower than that of the dry water level, it is difficult to desilt the water inlet. There is also the danger that the above-mentioned blocking meshes are easily blocked in this engineering measure
In addition, this design also has the problem that its structural design is not reasonable because the law of the movement and settlement of the oncomelania in running water is not clear.

Method used

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  • Water-snail eradication method and tank for culvert and sluice and channel water delivery engineering
  • Water-snail eradication method and tank for culvert and sluice and channel water delivery engineering
  • Water-snail eradication method and tank for culvert and sluice and channel water delivery engineering

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Embodiment Construction

[0067] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings, but they do not constitute a limitation to the present invention, and are only examples.

[0068] In the figure, 1 is the fence, 2-1, 2-2, 2-3 are the snail-stop walls, 3 is the trash rack, 4 is the bottom of the pool, 5 is the water inlet, 6 is the water hole, 7 is the slope, H K is the high water level, and K is the low water level.

[0069] Referring to Fig. 1-Fig. 6: the sluice sinking pond of the culvert gate and channel water delivery project of the present invention comprises a wall 1 and a pool bottom 4, and a certain oblique angle can be formed between the pool bottom 4 and the wall 1 to form a side slope or a right angle, and the wall There are snail blocking walls 2-1, 2-2, and 2-3 evenly spaced between 1, and the snail blocking walls 2-1 are located behind the water inlet channel 5, and there is a side slope 7 between the water inlet c...

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Abstract

The present invention is watersnail killing method and snail depositing pond for culvert, sluice, ditch and other water transfer engineering. The snail depositing pond includes inclined or vertical walls, bottom, snail blocking walls with lower water channel, and water inlet ditch with slope to the pond. The present invention is developed on the basis of researching the life habit of watersnail, and can separate and intercept watersnail effectively from other foreign matter in water while ensuring normal irrigation job.

Description

technical field [0001] The invention relates to a method for separating and intercepting oncomelania in culvert gates and canal water delivery projects and a snail sink designed by the method. Background technique [0002] Schistosomiasis is a parasitic disease that is caused by schistosomiasis parasitic in the human body. Oncomelania is the only intermediate host of schistosomiasis larvae, and the migration and spread of oncomelania are the main ways to cause the spread and spread of schistosomiasis. Field observations and experimental studies have shown that oncomelania transportation, especially long-distance transportation of a large number of oncomelania, is accomplished by means of water flow. Therefore, it is very important to study the transport and dispersal characteristics of Oncomelania snails in rivers to control the prevalence of schistosomiasis. [0003] Oncomelania is composed of two parts: the shell (including the shell of the snail and the disc-shaped cove...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B8/02E02B13/00
Inventor 任大春朱国胜定培中李飞汪在芹
Owner CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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