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An Adaptive Triangular Weir

A triangular weir, self-adaptive technology, applied in application, barrage/weir, marine engineering, etc., can solve the problem of high cost and high cost of irrigation flow control, and achieve the effect of simple structure and low cost

Active Publication Date: 2018-01-26
FARMLAND IRRIGATION RES INST CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a self-adaptive triangular weir, which solves the problem of high cost and expense of the existing canal irrigation flow control

Method used

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  • An Adaptive Triangular Weir
  • An Adaptive Triangular Weir

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Such as figure 1 and figure 2 As shown, the present embodiment provides an adaptive triangular weir, comprising a weir plate 1, a weir plate chute 2, a buried weir plate box 3, a floating body 4 and a floating body box 5, and the upper end of the weir plate 1 is provided with a triangular weir mouth 6, The buried weir box 3 is set in the soil layer below the bottom of the canal, the upper part of the weir chute 2 is fixed on the side wall of the channel, the lower part of the weir chute 2 is fixed in the buried weir box 3, and the weir 1 The left and right sides of the weir plate chute 2 are respectively inserted into the weir plate chute 2. The floating body box 5 is arranged in the corresponding side wall of the weir plate chute 2. The floating body box 5 is provided with a communication port 8 connected with the water channel on the water inlet side of the weir plate 1. The floating body 4 is arranged in the floating body box 5, the floating body 4 is connected wit...

Embodiment 2

[0025] Such as figure 1 and figure 2 As shown, this embodiment provides an adaptive triangular weir.

[0026] In this embodiment, the top of the weir plate 1 and the top of the buried weir plate box 3 are covered with anti-seepage cloth, and the entire body of the weir plate 1 is covered by the anti-seepage cloth. When the weir plate 1 moves upward, the anti-seepage spread Flat, when the weir plate 1 moves downward, the anti-seepage cloth is stacked on the top of the buried weir plate box 3 . The top of the anti-seepage cloth is also provided with a notch matched with the triangular weir mouth 6 .

[0027] The anti-seepage cloth plays a role of sealing on the one hand, preventing the water in the canal from flowing out through the buried weir box 3, and on the other hand, it can also prevent sediment from entering the buried weir box 3.

[0028] Other structures of this embodiment are the same as those of Embodiment 1, and will not be repeated here.

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Abstract

The invention discloses a self-adaptive triangular weir which comprises a weir plate, a weir plate sliding chute, a hidden weir plate box, floating bodies and floating body boxes. A triangular weir crest is formed in the upper end of the weir plate. The hidden weir plate box is arranged in a soil layer below a canal bed. The upper part of the weir plate sliding chute is fixed on one side wall of a canal. The lower part of the weir plate sliding chute is fixed in the hidden weir plate box. The floating body boxes are arranged in the corresponding side walls of the weir plate sliding chute. Communicating openings communicating with the canal are formed in the floating body boxes and in a water inlet side of the weir plate. The floating bodies are arranged in the floating body boxes, and are connected with the weir plate by virtue of a through hole in the weir plate sliding chute. The weir plate keeps a certain weir water level through buoyancy of the floating bodies. The floating bodies can move along the weir plate sliding chute. The floating bodies are arranged on two sides of the weir plate, so that the weir plate can be kept at a certain height, that is, the downstream output flow rate is stable. The structure is simple, the height of the weir plate is adjusted, without an extra device, and the cost is relatively low.

Description

technical field [0001] The invention relates to the technical field of farmland irrigation equipment, in particular to an adaptive triangular weir. Background technique [0002] In the process of canal irrigation distributing water to downstream channels or irrigating fields, gates are usually used to discharge water in the form of weir flow or orifice flow. For the water outlet, it is not only expected that the water flow rate will remain stable, but also that it can flow out at a given flow rate. [0003] The traditional outflow flow control is realized through a gate or a control weir. Since the gate is a bottom hole outflow, it is difficult to accurately maintain the outflow at a specific value by using a manual control gate. However, the cost and The cost is too high to bear. Moreover, although the fixed-height control weir is widely used at home and abroad, it can only maintain a fixed water level upstream of the weir, and cannot adaptively maintain the outflow flow ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B13/00E02B7/20
CPCE02B7/205E02B13/00E02B2201/50
Inventor 贾艳辉段福义范永申
Owner FARMLAND IRRIGATION RES INST CHINESE ACAD OF AGRI SCI