Inverted siphon inlet water level intelligent adjusting system and adjusting method thereof

A technology of intelligent adjustment and inverted siphon, which is applied in the fields of farmland irrigation and long-distance water diversion, which can solve the problems of gas being brought into the pipe, offsetting height difference, and vibration.

Pending Publication Date: 2021-05-11
POWERCHINA XIBEI ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large terrain height difference, under the condition of small flow rate (less than the design flow rate), the hydraulic loss of the pipeline is far less than the height difference between the inlet and outlet, and the height difference cannot be offset by the hydraulic loss
At this time, the water inlet of the inverted siphon cannot be submerged, and the first half of the pipe or most of the pipes are non-pressure open flow, and the water flow in the inverted siphon appears to be in a poor flow state, which is easy to bring gas into the pipe. Problems such as vibration and noise occur, which affect the normal operation and service life of the inverted siphon

Method used

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  • Inverted siphon inlet water level intelligent adjusting system and adjusting method thereof
  • Inverted siphon inlet water level intelligent adjusting system and adjusting method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] refer to figure 1 and figure 2 , the embodiment of the present invention provides an intelligent adjustment system for the inlet water level of an inverted siphon, comprising: an inlet pool 3, an inverted siphon 4, a controller 12, an outlet pool 8 and a downstream open channel 9; an ultrasonic wave is arranged above the inlet pool 3 Liquid level gauge 1; one end of the inverted siphon 4 communicates with the water inlet pool 3, and the inverted siphon 4 is connected with an electric flow regulating valve 10; the controller 12 communicates with the ultrasonic wave through the optical fiber signal input line 6 The liquid level gauge 1 is signal connected, and the controller 12 is connected with the electric flow regulating valve 10 through the control signal output line 18; the outlet pool 8 is connected with the outlet of the inverted siphon 4; the downstream open channel 9 It communicates with the outlet pool 8 .

[0027] The water inlet pool 3 and the water outlet ...

Embodiment 2

[0029] refer to figure 2 , on the basis of Embodiment 1, it also includes a sunken valve chamber 7, the sunken valve chamber 7 is a semi-basement structure, and the pipe section connected to the electric flow control valve 10 on the inverted siphon pipe 4 passes through the The sunken valve chamber 7 is described.

[0030] The lower half of the sunken valve chamber 7 is located below the ground, and the pipe section connected to the electric flow regulating valve 10 on the inverted siphon 4 is accommodated, so that the electric flow regulating valve 10 is isolated from the underground soil to keep it dry and convenient. The inverted siphon 4 and the electric regulating valve 10 are maintained and overhauled at any time, and the inverted siphon 4 with the electric regulating valve 10 does not need to be excavated and buried during the overhaul and maintenance.

Embodiment 3

[0032] refer to figure 2 , On the basis of Embodiment 2, a through-wall thrust ring 14 is provided between the inverted siphon 4 and the wall of the sunken valve chamber 7 .

[0033] The wall thrust ring 14 fixes the wall of the sunken valve chamber 7 and the inverted siphon 4 in the axial direction, so as to avoid the wall of the sunken valve chamber 7 caused by the axial displacement and gap of the inverted siphon 4 relative to the wall. Water seepage occurs.

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Abstract

The invention provides an inverted siphon inlet water level intelligent adjusting system. The inverted siphon inlet water level intelligent adjusting system comprises a water inlet pool, an inverted siphon, a controller, a water outlet pool and a downstream open channel, wherein an ultrasonic liquid level meter is arranged above the water inlet pool; one end of the inverted siphon communicates with the water inlet pool, and an electric flow adjusting valve is connected to the inverted siphon; the controller is in signal connection with the ultrasonic liquid level meter through an optical fiber signal input line, and the controller is in signal connection with the electric flow adjusting valve through a control signal output line; the water outlet pool communicates with an outlet of the inverted siphon; and the downstream open channel communicates with the water outlet pool. The invention further provides an inverted siphon inlet water level intelligent adjusting method which is implemented by adopting the inverted siphon inlet water level intelligent adjusting system.

Description

technical field [0001] The invention belongs to the fields of farmland irrigation and long-distance diversion of water, and in particular relates to an intelligent adjustment system and an adjustment method for the inlet water level of an inverted siphon. Background technique [0002] Projects such as farmland water irrigation, long-distance water diversion and other projects generally use open channels to convey water, but rivers, ditches, roads, and depressions are often encountered along the water conveyance. At this time, inverted siphons are generally used to cross low-lying areas along the line . In most cases, the elevation difference between the inlet and outlet of the inverted siphon is not large, and the inlet of the inverted siphon can be submerged by the water flow under the flow design conditions of all levels. However, in reality, there are often phenomena such as large height difference between the inlet and outlet of the inverted siphon, and a wide range of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B13/00E02B1/00G05D9/12
CPCE02B1/00E02B13/00G05D9/12
Inventor 顾嵋杰王军忠王波雷马超寇思飞刘锁孔锐任鹏举王亚军王汉勇王思润
Owner POWERCHINA XIBEI ENG
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