CN115978454A - Underground pipeline congestion detection method and system - Google Patents
Underground pipeline congestion detection method and system Download PDFInfo
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- CN115978454A CN115978454A CN202211684192.3A CN202211684192A CN115978454A CN 115978454 A CN115978454 A CN 115978454A CN 202211684192 A CN202211684192 A CN 202211684192A CN 115978454 A CN115978454 A CN 115978454A
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Abstract
The invention provides a method and a system for detecting underground pipeline congestion, which comprises the following steps: arrange liquid level measurement device according to the settlement interval in underground piping, through the liquid level height in the liquid level measurement device measurement pipeline, according to the liquid level height that two liquid level measurement device surveyed, calculate the unobstructed degree of this section pipeline, acquire liquid level altitude data in all pipelines, obtain the condition of blocking up of whole pipeline. According to the invention, the liquid level height is obtained in real time according to the liquid level measuring devices distributed in the pipeline, the smoothness degree of the pipeline is reflected according to the liquid level heights acquired by different liquid level measuring devices, the condition that the pipeline is jammed can be found as early as possible, and the position where the jam occurs can be positioned, so that the detection efficiency is greatly improved.
Description
Technical Field
The invention relates to the technical field of pipeline detection, in particular to a pipeline congestion detection method and system.
Background
With the construction and development of urban underground pipelines, the urban underground pipelines are used as important components of urban infrastructure and are responsible for functions of urban energy transportation, waterlogging drainage and disaster reduction, waste discharge and the like, so that the normal and reliable use and operation of the urban underground pipelines have great significance to cities.
However, with the rapid development of underground pipelines, the management problems caused by the underground pipelines are more and more, and the problems of urban waterlogging, water cut-off, power failure and the like caused by the blockage of the underground pipelines also bring great influence to urban residents. At present, the maintenance of underground pipelines mainly depends on the experience of pipe network maintenance personnel to carry out regular inspection and maintenance, and when people find that the underground pipelines are silted up, the people generally wait until all the underground pipelines are silted up, and can not early warn the pipe network problem in the early stage when rain sewage overflows; once problems occur, when dredging is needed, operators are difficult to judge the clogging position when facing long pipelines, and often need to dredge for a section, so that the efficiency is low.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a pipeline congestion detection method and system.
The invention provides a method for detecting congestion of underground pipelines, which comprises the following steps: arrange liquid level measurement device according to setting for the interval in underground piping, through the liquid level height in the liquid level measurement device measurement pipeline, according to the liquid level height that two liquid level measurement device surveyed, calculate the unobstructed degree of this section pipeline, acquire liquid level height data in all pipelines, obtain the condition of blocking up of whole pipeline.
Preferably, the method for measuring the patency of the pipeline comprises the following steps: according to the height h of the liquid level in the pipeline measured by the ith liquid level measuring device i Calculating the cross-sectional area S of the water flow at the measuring point i The unobstructed degree P of the section of pipeline is as follows:
in the formula, the (i-1) th liquid level measuring device is positioned at the upstream of the (i) th liquid level measuring device, when P =1, the section of the pipeline is clear, when P < 1, congestion occurs in the pipeline, and when P =0, the pipeline is completely blocked.
Preferably, the cross-sectional area S of the water flow in the conduit i Comprises the following steps:
wherein r is the radius of the circular pipe.
Preferably, when the whole pipeline is smooth, the measurement result of the liquid level measurement device is obtained by adopting an interval sampling mode, so that the length of the pipeline between two adjacent sampling points is increased; when the pipeline is blocked, the sampling number is increased aiming at the interval of the blocked pipeline until each liquid level measuring device is sampled, and the position where the blockage occurs is positioned.
Preferably, the detection method further comprises: when the pipeline is blocked, warning is given to workers, wherein the warning comprises the congestion state and the congestion position of the pipeline.
The invention provides an underground pipeline congestion detection system, which comprises:
pipe network water level measurement module: measuring the liquid level height in a pipe network in real time, wherein the liquid level height is obtained by arranging liquid level measuring devices in an underground pipeline at set intervals;
a data analysis module: according to the liquid level height measured by the two liquid level measuring devices, the unobstructed degree of the section of pipeline is calculated, all the pipeline internal liquid level height data are obtained, and the congestion condition of the whole pipeline is obtained.
Preferably, the unobstructed degree of the pipeline is the height h of the liquid level in the pipeline measured by the ith liquid level measuring device i Calculating the cross-sectional area S of the water flow at the measuring point i The unobstructed degree P of the section of pipeline is as follows:
in the formula, the (i-1) th liquid level measuring device is positioned at the upstream of the (i) th liquid level measuring device, when P =1, the section of the pipeline is clear, when P < 1, congestion occurs in the pipeline, and when P =0, the pipeline is completely blocked.
Preferably, the cross-sectional area S of the water flow in the conduit i Comprises the following steps:
wherein r is the radius of the circular pipe.
Preferably, when the whole pipeline is smooth, the measurement result of the liquid level measurement device is obtained by adopting an interval sampling mode, so that the length of the pipeline between two adjacent sampling points is increased; when the pipeline is blocked, the sampling number is increased aiming at the blocked pipeline interval until each liquid level measuring device is sampled, and the position where the blockage occurs is positioned.
Preferably, the detection system further comprises a real-time monitoring and early warning module: when the pipeline is blocked, warning is given to workers, wherein the warning comprises the congestion state and the congestion position of the pipeline.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the liquid level height is obtained in real time according to the liquid level measuring devices arranged in the pipeline, the smoothness degree of the pipeline is reflected according to the liquid level heights collected by different liquid level measuring devices, the condition that the pipeline is jammed can be found as soon as possible, and the position where the jam occurs can be positioned, so that the detection efficiency is greatly improved.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic diagram of the process of level measurement in an underground pipeline according to the present invention.
Description of reference numerals:
1. inspection well 2 and blockage
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the concept of the invention. All falling within the scope of the present invention.
The invention discloses a method for detecting congestion of underground pipelines, which is characterized in that liquid level measuring devices are arranged in the underground pipelines according to set intervals, as shown in figure 1, liquid level instrument groups are arranged to the underground pipeline network through an inspection well 1, and liquid level heights of different positions in the pipelines are measured through the liquid level measuring devices, as shown in h in the figure 1 、h 2 、h 3 . According to the height of the liquid level measured by the two liquid level measuring devices, the unobstructed degree of the section of pipeline is calculated, for example, according to the height h of the liquid level 1 And h 2 Can be measured to be located at h 1 、h 2 The congestion of the pipeline between the two liquid level meters is not limited to the congestion of the pipeline reflected by the two adjacent liquid level meters, and the congestion can be further reflected according to h 1 And h 3 To reflect that is located at h 1 、h 3 The congestion of the whole pipeline. The congestion condition of the whole pipeline can be obtained by acquiring the height data of the liquid levels in all the pipelines, and when the pipeline is blocked, warning including the congestion state and the congestion position of the pipeline is sent to workers.
When the pipeline is jammed due to various reasons, such as the jam caused by the blockage 2 in fig. 1, the water outlet speed of the pipeline outlet becomes low, the water level at the pipeline inlet is obviously higher than that at the pipeline outlet, and the water pump can not be used for pressurizing any more. At the moment, the unblocked degree of each section needs to be calculated, and congestion processing is carried out from a place with a lower unblocked degree.
The method for reflecting the unobstructed degree according to the liquid level height comprises the following steps: the definition of the degree of openness p, i.e. the cross-sectional area of the water at the outlet/the cross-sectional area of the water at the inlet, is given first. By specific is meant the ratio of the actual water flow rate to the theoretical water flow rate. Under extreme conditions, if the water pipe is completely unblocked, the cross-sectional area of the outlet water should be completely the same as that of the inlet water, namely the unblocked degree is 1; under the condition that the water pipe is completely blocked, the cross section area of the water outlet is 0, namely the unblocked degree is 0; the smaller the water outlet is, the more obstructed is the representation.
Specifically, referring to FIG. 1, the height h of the liquid level in the pipeline measured by the ith liquid level measuring device i Calculating the cross-sectional area S of the water flow at the measuring point i The unobstructed degree P of this section of pipeline is:
in the formula, the (i-1) th liquid level measuring device is positioned at the upstream of the (i) th liquid level measuring device, when P =1, the section of the pipeline is clear, when P < 1, congestion occurs in the pipeline, and when P =0, the pipeline is completely blocked.
Since most water pipes are circular pipes, the cross-sectional area of water is calculated by taking a circular pipe as an example. First the water level height h is given by the level gauge, the radius of the water pipe is also known, the cross-sectional area S of the water flow in the pipe i Comprises the following steps:
wherein r is the radius of the circular pipe.
In an actual scene, a liquid level meter is arranged at intervals of a pipeline to record the water level of the point, which can be recorded as:
h 1 ,h 2 …,h i
the cross-sectional area of the water can be obtained by a calculation formula:
S 1 ,S 2 …,S i
from the starting position, the degree of patency of each segment is:
the smaller the p value is, the more serious the blocking condition of the pipe network is, when the pipe is blocked, the pipe with poor smoothness can be processed preferentially, thereby improving the efficiency.
When the whole pipeline is unobstructed, the liquid level measuring device is obtained by adopting an interval sampling modeThe acquisition increasing the length of the pipe between two adjacent sampling points, e.g. acquisition h 1 、h 3 、h 5 And the like. When the pipeline is blocked, the sampling number is increased aiming at the interval of the blocked pipeline until each liquid level measuring device is sampled, and the position where the blockage occurs is positioned. Therefore, the acquisition amount can be reduced when the pipeline is unobstructed, so that the calculation amount of the system is reduced, and when congestion occurs in the pipeline, the acquisition strategy is adjusted, and the congestion position is accurately positioned.
The invention also discloses an underground pipeline congestion detection system which comprises a pipe network water level measurement module, a data analysis module and a real-time monitoring and early warning module.
The pipe network water level measuring module is composed of liquid level instrument groups installed on all inspection wells 1, mainly completes detection of absolute level values of relevant positions, reports the absolute level values to the data analysis module, and can also be used for determining pipe networks in the same drainage range.
A data analysis module: according to the liquid level height measured by the two liquid level measuring devices, the unobstructed degree of the section of pipeline is calculated, all the pipeline internal liquid level height data are obtained, and the congestion condition of the whole pipeline is obtained.
The data uploaded by the pipe network water level measurement module automatically enters the pipe network to be processed by the blocking algorithm model, the processing result shows the blocking condition of the pipe network in the drainage range, and the data is uploaded to the real-time monitoring and early warning module to send out early warning, so as to provide a basis for relevant decisions.
Real-time monitoring early warning module: when the pipeline is blocked, warning is given to workers, wherein the warning comprises the congestion state and the congestion position of the pipeline. The real-time monitoring and early warning module is composed of a small mobile phone end monitoring program and a PC end monitoring program, mainly completes display and query of pipe network water level sensing system data and result query of a big data analysis subsystem, realizes man-machine interaction of warning and early warning, and provides a visual interface for an execution layer.
The unobstructed degree of the pipeline is the height h of the liquid level in the pipeline measured by the ith liquid level measuring device i Calculating the cross-sectional area S of the water flow at the measuring point i The unobstructed degree P of the section of pipeline is as follows:
in the formula, the (i-1) th liquid level measuring device is positioned at the upstream of the (i) th liquid level measuring device, when P =1, the section of the pipeline is clear, when P < 1, congestion occurs in the pipeline, and when P =0, the pipeline is completely blocked.
Cross-sectional area S of water flow in the pipe i Comprises the following steps:
wherein r is the radius of the circular pipe.
When the whole pipeline is smooth, the measuring result of the liquid level measuring device is obtained in an interval sampling mode, so that the length of the pipeline between two adjacent sampling points is increased; when the pipeline is blocked, the sampling number is increased aiming at the interval of the blocked pipeline until each liquid level measuring device is sampled, and the position where the blockage occurs is positioned.
The foregoing description has described specific embodiments of the present invention. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (10)
1. A method for detecting congestion of an underground pipeline is characterized by comprising the following steps: arrange liquid level measurement device according to the settlement interval in underground piping, through the liquid level height in the liquid level measurement device measurement pipeline, according to the liquid level height that two liquid level measurement device surveyed, calculate the unobstructed degree of this section pipeline, acquire liquid level altitude data in all pipelines, obtain the condition of blocking up of whole pipeline.
2. According to claim 1The underground pipeline congestion measuring method is characterized in that the method for measuring the unobstructed degree of the pipeline comprises the following steps: according to the height h of the liquid level in the pipeline measured by the ith liquid level measuring device i Calculating the cross-sectional area S of the water flow at the measuring point i The unobstructed degree P of this section of pipeline is:
in the formula, the (i-1) th liquid level measuring device is positioned at the upstream of the (i) th liquid level measuring device, when P =1, the section of the pipeline is clear, when P < 1, congestion occurs in the pipeline, and when P =0, the pipeline is completely blocked.
3. The underground pipeline congestion measuring method according to claim 2, wherein: cross-sectional area S of water flow in the pipe i Comprises the following steps:
wherein r is the radius of the circular pipe.
4. The underground pipeline congestion measuring method according to claim 1, further comprising: when the whole pipeline is smooth, the measuring result of the liquid level measuring device is obtained by adopting an interval sampling mode, so that the length of the pipeline between two adjacent sampling points is increased; when the pipeline is blocked, the sampling number is increased aiming at the interval of the blocked pipeline until each liquid level measuring device is sampled, and the position where the blockage occurs is positioned.
5. The underground pipeline congestion measuring method according to claim 1, further comprising: when the pipeline is blocked, warning is given to workers, wherein the warning comprises the congestion state and the congestion position of the pipeline.
6. An underground pipe congestion detection system, comprising:
pipe network water level measurement module: measuring the liquid level height in a pipe network in real time, wherein the liquid level height is obtained by arranging liquid level measuring devices in an underground pipeline at set intervals;
a data analysis module: according to the liquid level height measured by the two liquid level measuring devices, the unobstructed degree of the section of pipeline is calculated, all the pipeline internal liquid level height data are obtained, and the congestion condition of the whole pipeline is obtained.
7. An underground pipeline congestion measurement system as claimed in claim 6, wherein the degree of patency of the pipeline is the height h of the liquid level in the pipeline measured by the ith liquid level measuring device i Calculating the cross-sectional area S of the water flow at the measuring point i The unobstructed degree P of the section of pipeline is as follows:
in the formula, the (i-1) th liquid level measuring device is positioned at the upstream of the (i) th liquid level measuring device, when P =1, the section of the pipeline is clear, when P < 1, congestion occurs in the pipeline, and when P =0, the pipeline is completely blocked.
8. An underground pipe congestion measurement system according to claim 7, wherein: cross-sectional area S of water flow in the pipe i Comprises the following steps:
wherein r is the radius of the circular pipe.
9. The underground pipeline congestion measuring system according to claim 6, wherein when the whole pipeline is unobstructed, the measurement result of the liquid level measuring device is obtained by adopting an interval sampling mode, so that the length of the pipeline between two adjacent sampling points is increased; when the pipeline is blocked, the sampling number is increased aiming at the blocked pipeline interval until each liquid level measuring device is sampled, and the position where the blockage occurs is positioned.
10. An underground pipeline congestion measuring system as claimed in claim 6, further comprising a real-time monitoring and early warning module: when the pipeline is blocked, warning is given to workers, wherein the warning comprises the congestion state and the congestion position of the pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211684192.3A CN115978454A (en) | 2022-12-27 | 2022-12-27 | Underground pipeline congestion detection method and system |
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| CN202211684192.3A CN115978454A (en) | 2022-12-27 | 2022-12-27 | Underground pipeline congestion detection method and system |
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