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Siphon water level controller

A water level control and siphon technology, applied in soil drainage, construction, application, etc., can solve problems such as easy leakage of weir plate, inability to adjust water level in weir, discharge of upstream sediment and pollutants to downstream, etc., to reduce sedimentation and start-up time. short effect

Inactive Publication Date: 2013-09-25
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the main devices for controlling water delivery in domestic channels are gates or weirs, which have great defects. The disadvantages of gates are: it is difficult to accurately control the upstream water level, and it is easy to discharge upstream sediment and pollutants to the downstream
The fixed-height weir cannot adjust the water level, and the multi-layer weir with adjustable water level also has technical defects, such as water leakage between the weir plates, etc.

Method used

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  • Siphon water level controller
  • Siphon water level controller
  • Siphon water level controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A drainage ditch water level siphon control device, its structure is as follows Figure 1-Figure 4 shown. Assuming that the bottom of the ditch upstream and downstream of the device is horizontal, the water depth refers to the vertical distance from the water surface to the bottom of the ditch (except for the water accumulation tank 7 below the water inlet and the anti-air intake groove 4 of the pipeline). The outer diameter of the pipe is 10cm, the depth of the drainage ditch is 1.8m, and the vertical height of the top of the weir in the drainage ditch from the bottom of the ditch is 1.6m. According to the requirements of the groundwater level at a certain growth stage of the crops, the water depth in the drainage ditch needs to be kept at 1.2m m, and the water depth in the drainage ditch is 1.5m. The water inlet 2 is placed upstream, there is a water accumulation tank 7 below the water inlet, the exhaust valve 3 is opened, the water outlet height adjustment device 6 ...

Embodiment 2

[0019] A drainage ditch water level siphon control device, comprising a siphon pipe 1, a water inlet 2, an exhaust valve 3, a pipe anti-intake groove 4, a water outlet 5, a height adjustment device 6, and a water storage tank 7; The siphon pipe 1 has a U-shaped curved part, and the lowest end of the second U-shaped section is fixed at the anti-intake groove 4 of the pipe; the water inlet 2 includes: an air buoyancy tank 21 and a one-way water stop valve 22, when there is no water upstream, The water inlet 2 is in the water of the water storage tank 7; the water outlet 5 includes: the groove 51 that can slide on both sides of the outer diameter of the outlet pipe 52 and the pipe outlet, and the groove 51 can slide between the multi-arc connecting slide bars 62; the height of the water outlet Adjusting device 6 comprises: tension spring 61, multi-arc connection slide bar 62, horizontal fixed bar 65, height adjustment bar 64, tension spring 61 ring is sleeved on the horizontal fix...

Embodiment 3

[0022] A siphon water level control device, including two U-shaped curved structures, the first U-shaped curved structure a is connected to the water inlet 2 through a siphon pipe 1 with telescopic flexibility, and the second U-shaped curved structure b is connected with a water inlet 2 through a telescopic curved The siphon pipe is connected to the water outlet 5, and the above two U-shaped curved structures are connected through the pipe; the water inlet 2 includes a buoyancy tank 21, a pipeline and a one-way water stop valve 22, and the buoyant tank 21 is set outside the pipeline, and the one-way water stop The valve 22 is set in the pipeline; the water outlet 5 is set on the height adjusting device 6 . A water accumulation tank 7 is arranged below the water inlet 2, and when there is no water upstream, the water inlet falls into the water accumulation tank. An exhaust valve 3 is provided on the first U-shaped curved structure a. The second U-shaped bending structure b is ...

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Abstract

Provided is a siphon water level controller, comprising two U-shaped bending structures. The first U-shaped bending structure is connected with a water inlet via a siphon pipeline with the flexible bending property, and the second U-shaped bending structure is connected with a water outlet via a siphon pipeline with the flexible bending property, wherein the two U-shaped bending structures are connected via a pipeline. The water inlet comprises a floating box, a pipeline and a one-way water shut-off valve, wherein the floating box is sleeved out of the pipeline, and the one-way water shut-off valve is disposed in the pipeline. The water inlet is arranged on a height adjusting unit. The siphon water level controller of the invention has the following beneficial effects that: 1) the startup is performed without the need of power to form siphon flow, and the start time is short, depending on the pipeline diameter and the pipeline length; 2) during the service lifetime, water is filled and the siphon is started by one shot, realizing adjustment and maintenance of the water level; 3) the water inlet is close to the liquid level under the effect of the floating box, thereby facilitating deposition of silts and other particles and reducing deposition in downstream rivers and lakes; and 4) the height of the water outlet is adjustable so as to maintain the upstream water level, thereby satisfying the water level requirements, i.e., different water level requirements of crops in different growing periods.

Description

technical field [0001] The invention belongs to the technical field of agricultural water and soil engineering, in particular to a gravity-activated siphon, in particular to a siphon water level control device capable of adjusting the water level. Background technique [0002] Utilizing the siphon phenomenon of the siphon to transport water has the outstanding advantage of being able to transport automatically without external power. It has many applications in engineering, but there is a lack of devices for controlling the water level siphon in the process of water transport. [0003] Currently, gates or weirs are the main devices used to control water delivery in ditches in China. Both of them have major defects. The disadvantages of gates are: it is difficult to accurately control the upstream water level, and it is easy to discharge upstream sediment and pollutants to the downstream. The fixed-height weir cannot adjust the water level, and the multi-layer weir with adjus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B11/00
Inventor 殷国玺闫宝迎吕振东
Owner HOHAI UNIV