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Efficient long-distance dredging method for buried culvert and dredging system thereof

A long-distance, high-efficiency technology, applied in waterway systems, buildings, complex mathematical operations, etc., can solve problems such as large fluctuations in dredging conditions, reduced dredging efficiency, equipment damage, etc., to achieve the effect of automatic variable speed adjustment

Pending Publication Date: 2022-07-22
CHINA CONSTR THIRD BUREAU GREEN IND INVESTMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, limited by the different internal water levels of different sewers, the dredging robot operators in different environments depend on their dredging years and proficiency. This unstable dredging operation will reduce the dredging performance. The efficiency also makes the dredging situation fluctuate greatly and not stable enough
In addition, the current dredging robots all use motors and water pumps. This kind of equipment cannot automatically realize variable speed adjustment when encountering low water level and other dredging environments. Most of them require operators to adjust their own variable speed according to the water level or mud concentration. , the adjustment method is not stable enough, and cannot be applied to complex and changeable implied environments
[0003] At the same time, there is no transfer pressurization station in the current dredging system, and dredging robots cannot achieve long-distance dredging. For urban sewers with long bus lengths, dredging robots need to enter and exit multiple times to complete the entire process. dredging work, which greatly affects the dredging efficiency
In addition, the current dredging robot system does not have an additional cooling system, and only relies on the water in the sewer to cool the various equipment. When encountering a low water level environment, the dredging robot cannot dissipate heat in time, which will cause damage to some equipment

Method used

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  • Efficient long-distance dredging method for buried culvert and dredging system thereof
  • Efficient long-distance dredging method for buried culvert and dredging system thereof
  • Efficient long-distance dredging method for buried culvert and dredging system thereof

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Experimental program
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Embodiment

[0063] like figure 1 As shown in the figure, a method for efficient and long-distance dredging of hidden culverts includes the following steps:

[0064] S1. Construct the continuous variation function of mud concentration with the characteristic model of the second-order time-varying difference equation,

[0065] y(k)=f 1 (k)y(k-1)+f 2 (k)y(k-2)+C′g 0 (k)n(k-k 0 ) (1)

[0066] In the formula, y(k) is the mud concentration at time k; y(k-1) is the mud concentration at time k-1; y(k-2) is the mud concentration at time k-2; k 0 is the number of lag steps; n(k-k 0 ) is k-k 0 the rotational speed at the moment; C' is the constraint ratio, and Calculations are performed in subsequent steps.

[0067] The high-efficiency long-distance dredging method of the present application adopts an adaptive double closed-loop dredging control structure, and controls the cutting amount of the sludge by adjusting the rotating cutting speed of the stirring member (eg, the twisting head),...

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Abstract

The invention discloses an efficient long-distance dredging method for an underground culvert and a dredging system thereof.The dredging system adopts a control algorithm constructed by the slurry concentration and the motor rotating speed, adjusts the motor rotating speed in real time according to the current slurry concentration, and comprises an underwater dredging robot, a transfer station and a control device; the desilting robot comprises a walking device, a desilting device arranged at the front end of the walking device, a power device used for providing power, a cooling device used for cooling the desilting device and the power device, and a sensing device in signal connection with the control device. By means of the mode, the dredging device is simple in structure, the maximum dredging distance is increased by arranging the transfer station, the rotating speed of the motor is adjusted in time according to the slurry concentration monitored on line, therefore, automatic variable-speed adjustment is achieved, it is ensured that dredging work is conducted smoothly, and the working efficiency is high and the working state is stable through the automatic control mode.

Description

technical field [0001] The invention relates to the technical field of dredging of hidden culverts, in particular to a method and a dredging system for efficient and long-distance dredging of hidden culverts. Background technique [0002] Sewers, as the most important infrastructure facilities in cities, play an extremely important role for citizens living in cities. With the gradual increase of the urban population, more and more sewage and various garbage are discharged into the sewers every day. Over time, the sewers are prone to siltation and blockage. At present, various cities use dredging robots to dredging sewers on a regular basis. However, due to the different internal water level environments of different sewers, the dredging operation of the dredging robot operator in different environments is very dependent on their dredging years and proficiency. This unstable dredging operation will reduce the dredging operation. The efficiency also makes the dredging situat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E03F7/10G06F30/20G06F17/11
CPCE03F7/10E03F7/106G06F30/20G06F17/11G06F2111/04
Inventor 吴志炎阮超刘军胡茂锋汪小东霍培书龚杰汤丁丁张延军赵皇邹静石稳民李巧玲
Owner CHINA CONSTR THIRD BUREAU GREEN IND INVESTMENT CO LTD
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