CN115356260A - High-water-level running pipeline health condition efficient detection method - Google Patents
High-water-level running pipeline health condition efficient detection method Download PDFInfo
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- CN115356260A CN115356260A CN202210905130.4A CN202210905130A CN115356260A CN 115356260 A CN115356260 A CN 115356260A CN 202210905130 A CN202210905130 A CN 202210905130A CN 115356260 A CN115356260 A CN 115356260A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/22—Adaptations of pumping plants for lifting sewage
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8806—Specially adapted optical and illumination features
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/954—Inspecting the inner surface of hollow bodies, e.g. bores
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
- E03F2003/065—Refurbishing of sewer pipes, e.g. by coating, lining
Abstract
The invention relates to the technical field of municipal engineering, in particular to a high-water-level running pipeline health condition efficient detection method, which comprises the following steps: s1, collecting and arranging data; s2, researching the actual operation scale and the design scale of the sewage treatment plant/sewage lifting pump station in the range to be detected; s3, judging the water level condition of the sewage pipe network according to the data comparison of the actual operation scale and the design scale; s4, reducing the water level of each sewage pipeline to be suitable for CCTV or QV work of detection equipment, and gradually detecting the sewage pipeline from downstream to upstream and repairing the pipeline defect by adopting the CCTV or QV from a sewage treatment plant/sewage lifting pump station; and S5, after the sewage pipe network is detected, removing the means for reducing the water level of each sewage pipe and recovering the detection equipment, namely completing the efficient detection of the health condition of the high-water-level operation pipe. The detection method can quickly and efficiently find out the defect position and the defect type of the sewage pipeline, and has high detection efficiency and small workload.
Description
Technical Field
The invention relates to the technical field of municipal engineering, in particular to a high-water-level running pipeline health condition efficient detection method.
Background
Drainage systems are important components of urban infrastructure construction, and the perfection of drainage systems affects the treatment and pollution control of urban sewage.
The pipeline detection equipment comprises a closed-circuit television system (CCTV), a pipeline periscope (QV), a sonar and the like, wherein the CCTV is used for detecting whether the water level in a pipeline is lower than 20% of the diameter of the pipeline, the QV is used for detecting whether the water level in the pipeline is lower than 50% of the diameter of the pipeline, the sonar is used for detecting whether the water level in the pipeline is larger than 300mm, but a sonar probe is easily wound or covered by foreign matters in water, so that the detection work cannot be carried out, the detection result is a simulation result after the analysis and processing of a computer, and is a non-image result. Therefore, CCTV and QV are commonly used to detect pipelines at present.
However, in actual pipeline inspection, a situation that the sewage pipe network runs at a high water level is often encountered. High water level operation of sewage pipe networks is mainly related to sewage treatment capacity and pipe defects (structural defects or functional defects). From sewage treatment ability, when sewage treatment ability is greater than sewage collection volume, healthy sewage pipeline can not high water level operation, and above-mentioned pipeline detection equipment can normal use. When the sewage treatment capacity is basically equivalent to the sewage collection amount and is influenced by the nonuniformity of the sewage collection amount, the healthy sewage pipeline can present an intermittent high-water-level running condition; when the sewage treatment capacity is less than the sewage collection amount, even a healthy sewage pipe may exhibit a high water level operation condition. In terms of pipeline defects, when the pipeline defects are serious, the sewage pipe at the upstream of the pipeline defects presents serious high water level operation conditions, and the water level of the sewage pipe network at the downstream of the pipeline defects is irrelevant, and the water level at the upstream and the downstream can not rise and fall simultaneously; when the pipeline defect is serious, the sewage pipe at the upstream of the pipeline defect may present a certain high water level operation condition, the water levels of the sewage pipe network at the upstream and downstream of the pipeline defect are greatly related, and the water levels at the upstream and downstream can rise and fall simultaneously, but an obvious water level difference may be formed. When the high water level operation condition is serious, the sewage pipeline can be directly submerged, and the pipeline cannot be detected by CCTV and QV.
At present, in order to solve the above defects, a method of arranging drainage guide facilities section by section is adopted, a pipe section to be detected is isolated from the whole pipe network, and the water level of the pipe section is reduced by measures such as plugging, so as to build conditions suitable for CCTV and QV detection. The method has the advantages of large preparation workload, slow detection process, low detection efficiency and high detection cost, and cannot meet the requirement of high-water-level operation sewage pipeline rapid and efficient detection in black and odorous water treatment.
Disclosure of Invention
The invention aims to provide a high-water-level running pipeline health condition efficient detection method aiming at the defects of the prior art, which can quickly and efficiently find out the defect position and the defect type of a sewage pipeline, has high detection efficiency and small workload, saves engineering investment and working time, creates a favorable working situation for the thunderstorm black and odorous water body treatment work, and has important engineering application value.
Based on the above, the invention provides a high-water-level operation pipeline health condition efficient detection method, which comprises the following steps:
s1, collecting and arranging data: collecting and arranging the existing data of the sewage pipe network in the range to be detected;
s2, researching the actual operation scale and design scale of the sewage treatment plant/sewage lifting pump station in the range to be detected;
s3, judging the water level condition of the sewage pipe network according to the data comparison of the actual operation scale and the design scale;
s4, reducing the water level of each sewage pipeline to be suitable for CCTV or QV work of detection equipment, and gradually detecting the sewage pipeline from downstream to upstream and repairing the pipeline defect by adopting the CCTV or QV from a sewage treatment plant/sewage lifting pump station;
and S5, after the sewage pipe network is detected, removing the means for reducing the water level of each sewage pipe and recovering the detection equipment, namely completing the efficient detection of the health condition of the high-water-level operation pipe.
Further, in the step S1, the collected and arranged data includes collecting design data and completion data of the sewage treatment plant/sewage lifting pump station and the sewage pipe, integrating all the data to form a regional sewage system diagram, collecting recent operating conditions of the sewage treatment plant/sewage lifting pump station, and collecting surface water body information of a covered region of the sewage pipe network.
Furthermore, the regional sewage system diagram comprises the pipe diameter of a sewage pipe, the number of an inspection well, the form of an intercepting well, the burial depth of the bottom of the pipe, the burial depth of the bottom of the inspection well, the design scale of a sewage treatment plant, the form of a sewage lifting pump station and the design scale.
Further, the operation condition includes the amount of treated water in the sewage treatment plant every year, every month, every day and every time, or the operation water level of the sewage lifting pump station every year, every month, every day and every time.
Furthermore, the surface water body information of the sewage pipe network coverage area comprises information of a water environment functional area, a water quality current situation, flow velocity, tidal sense attribute, a wading structure, a water user, a water environment sensitive point distribution situation and the like.
Further, in the step S3, when the design scale of the sewage treatment plant/sewage lifting pump station is larger than the actual operation scale, the sewage pipe network is in a low water level operation condition;
and when the design scale of the sewage treatment plant/sewage lifting pump station is equal to or smaller than the actual operation scale, the sewage pipe network is in a high water level operation working condition.
Further, in the step S4, the method for lowering the water level includes blocking the sewage branch pipe and increasing the treatment capacity according to the variation coefficient of the sewage treatment plant/sewage lifting pump station.
Further, in step S4, the pipe defect includes a structural defect and a functional defect, the structural defect includes deformation, dislocation and undulation of the pipe, and the functional defect includes deposition, scaling, obstacles and residual walls.
Further, in the step S4, the method for repairing the pipeline defect includes winch dredging, jet dredging, support excavation repairing, and trenchless in-situ repairing.
The invention has the beneficial effects that:
the detection method of the invention compares the actual operation scale with the design scale data of the sewage treatment plant/sewage lifting pump station to know whether the sewage pipe network is in the high water level operation condition, then selects a corresponding means to reduce the water level according to the actual condition of the high water level operation condition, and then adopts CCTV or QV to detect the sewage pipe from downstream to upstream step by step, so that the position and the type of the pipe defect can be found and repaired quickly, the detection efficiency is high, and the workload is small.
Drawings
Fig. 1 is a schematic diagram of sewage pipe network distribution.
FIG. 2 is a schematic diagram of a manhole showing water head due to pipe defects.
Fig. 3 is a schematic diagram of temporary plugging of a sewage branch pipe.
Reference numerals are as follows:
a sewage treatment plant/sewage lifting pump station A, a sewage pipe B, an inspection well C, a pipeline defect D, an air bag and other temporary plugging facilities E.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clear, the present invention is further described in detail below with reference to the embodiments. It should be understood, however, that the description herein of specific embodiments is only for the purpose of illustrating the invention and is not to be taken as limiting the invention.
The method for detecting the health condition of the high-water-level running pipeline comprises the following steps: the method comprises the steps of starting from one section of pipeline of a sewage pipe network, checking the water level height of the section of pipeline, directly detecting the section of pipeline by using CCTV or QV if the section of pipeline is at a low water level, blocking the inlet end and the outlet end of the section of pipeline if the section of pipeline is at a high water level, draining water in the pipeline by using pumping equipment, draining sewage at the upstream of a section to be detected to the downstream by using pumping facilities, detecting the section of pipeline by using CCTV or QV, removing the block after detection is finished, and repeating the processes of blocking, pumping water, draining, detecting and removing the block in cycles. The detection method is complicated, the preparation workload is large, and when the whole sewage pipe network is in a high water level operation working condition, the health condition of each section of sewage pipeline cannot be judged in an initial step, so that CCTV or QV must be used for carefully detecting each section of sewage pipeline, and the detection efficiency is low.
The high-efficiency detection method for the health condition of the high-water-level running pipeline comprises the following specific steps:
1. collecting design data and completion data of a sewage treatment plant/a sewage lifting pump station A and a sewage pipe B, and integrating all the data to form a regional sewage system diagram, wherein the regional sewage system diagram comprises the pipe diameter of the sewage pipe, the number of an inspection well, the form of a catch basin, the burial depth of the bottom of the pipe, the burial depth of the bottom of the inspection well, the design scale of the sewage treatment plant, the form of the sewage lifting pump station, the design scale and the like.
2. Data such as the annual, monthly, daily and hourly water treatment amount of a sewage treatment plant or the annual, monthly, daily and hourly operation water level of a sewage lifting pump station in recent years are collected.
3. Collecting surface water body information of a sewage pipe network coverage area, wherein the surface water body information comprises a water environment functional area, a water quality current situation, flow velocity, tidal sensitivity attributes, wading structures, water consumers, water environment sensitive point distribution and the like.
4. Comparing the design scale and the actual operation scale of the sewage treatment plant/sewage lifting pump station A.
4-1, when the design scale of the sewage treatment plant/sewage lifting pump station A is larger than the actual operation scale, the sewage treatment plant/sewage lifting pump station A is not operated at full load, and the sewage pipe B is insufficient in water, so that the sewage pipe B is in a low-water-level operation working condition and has the condition of adopting CCTV or QV detection.
4-2, when the design scale of the sewage treatment plant/sewage lifting pump station A is smaller than or equal to the actual operation scale, the water consumption of the residents has a peak period and a low peak period, so that the sewage discharge amount also has the uneven characteristics of the peak period and the low peak period, and the sewage pipeline is easy to be in a high-water-level operation working condition in the peak period of the sewage discharge. The treatment capacity is improved to the maximum according to the change coefficient when the sewage treatment plant/sewage lifting pump station A is designed, for example, the change coefficient of the sewage treatment plant/sewage lifting pump station A is 1.3, and the design scale is 10 ten thousand meters 3 D, then the maximum processing capacity can reach 13 ten thousand m 3 And d, improving the treatment capacity of the sewage treatment plant/sewage lifting pump station A to 13 ten thousand meters at the moment 3 Lowering the water level to restore the sewage pipe B to the low water level operation condition, so as to create the condition of meeting the CCTV or QV detection.
4-3. When the design scale of the sewage treatment plant/sewage lifting pump station A is less than or equal to the actual operation scale and the processing capacity of the sewage treatment plant/sewage lifting pump station A is improved to the maximum without reducing the operation water level of the sewage pipe B, the method is according to (2) - (9), (3) -E, (4) & E
⑥～
When the hydrological diffusion conditions of the natural water body in the area where the sewage branch pipes are located are good and bad and the sensitivity is different, after the consent of relevant competent departments is obtained and the public is informed in advance, in the low-peak period of water use, temporary plugging facilities E such as air bags are adopted to temporarily plug one or more sections of the sewage branch pipes, so that the sewage collection amount is reduced, the sewage pipe B is restored to the low-water-level operation condition, and the condition meeting CCTV or QV detection is created.
According to the embodiment, before detection, the operation water level of the sewage pipe B is judged by comparing the design scale and the actual operation scale of the sewage treatment plant/sewage lifting pump station A, and the operation water level of the sewage pipe B is reduced by plugging the sewage branch pipe and increasing the treatment capacity according to the change coefficient of the sewage treatment plant/sewage lifting pump station A, so that the condition meeting CCTV or QV detection is created, the healthy sewage pipe can be ensured to be basically in the low-water-level operation condition, CCTV or QV can be conveniently and directly and rapidly detected, the workload is reduced, and the working efficiency is improved.
5. And (3) after determining that the sewage pipe B is in a low water level operation condition and meets CCTV or QV detection conditions according to the 4 th point, opening the inspection well C, detecting the sewage pipe from downstream to upstream step by adopting CCTV or QV, preferentially detecting the pipe sections (1) to (2), then detecting the pipe sections (2) to (3), and so on. When the method is used for detection, the healthy pipe sections are basically in a low water level state, CCTV or QV can be rapidly detected, if a certain pipe section or certain pipe sections have defects, the condition of high water level at the upstream of the defects can occur, only the part needs to be carefully detected, and the detection efficiency is high.
For example, if the pipe sections (3) - (4) have the pipe defect D, the overflow capacity of the pipe is insufficient, the sewage pipe upstream of the pipe defect D runs at a high water level, and in the process of inspecting the pipe sections (3) - (4), the position and the defect type of the pipe defect D can be quickly found, wherein the defect type comprises structural defects such as deformation, misalignment and fluctuation of the pipe or functional defects such as deposition, scaling, obstacles and residual walls. The accurate position and type of the pipeline defect D are determined through the distance measurement function of CCTV or QV, targeted defect repair measures are taken, such as winch dredging, jet dredging, support excavation repair, trenchless in-situ repair and the like, repair is carried out, after the pipeline defect D is repaired, the overflowing capacity of a sewage pipeline is recovered, and the water level of the sewage pipeline at the upstream of the pipeline defect D is lowered. And then continuously detecting the health condition of the upstream pipeline until all the pipeline sections are completely detected.
6. After the pipeline health condition is detected, if means of 4.2 and/or 4.3 are adopted, the treatment capacity of the sewage treatment plant/sewage lifting pump station A needs to be recovered to the conventional design scale, temporary plugging facilities E such as an air bag and the like are removed, and the detection of the pipeline health condition of the area is completed before the sewage system is recovered to the detection.
The detection method of the embodiment comprises the steps of judging the height of the operating water level of the sewage pipe network, reducing the operating water level to be suitable for CCTV (continuous closed cycle) or QV (QV) work of detection equipment by plugging the sewage branch pipe and increasing the treatment capacity according to the change coefficient of the sewage treatment plant/sewage lifting pump station A, and then gradually detecting the sewage pipeline from the downstream to the upstream from the sewage treatment plant/sewage lifting pump station and repairing the pipeline defect. After the operation water level is reduced, the healthy pipeline is basically in a low water level operation state, and the defect upstream pipeline is in a high water level operation state, so that the defect of which section or sections of pipelines can be quickly judged, the pipeline at the low water level can be quickly detected by CCTV or QV, only the defect pipeline section needs to be carefully detected, the workload is obviously reduced, and the detection efficiency is improved.
In the conventional technology, because the pipeline is always in a high water level, plugging facilities and a water pumping and draining process are required to be designed every section of pipeline to be detected, the plugging needs to be removed after the section of pipeline to be detected is detected, and the processes of plugging, water pumping, draining, detecting and plugging removing are repeated in a cycle, so that the preparation workload is large, and the detection efficiency is low. The method for designing the waterproof robot adopted at present also needs to carefully detect each section of sewage pipeline, and although a plugging facility is not needed to be designed, the defect of low detection efficiency still exists.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A high-water-level operation pipeline health condition efficient detection method is characterized by comprising the following steps:
s1, collecting and arranging data: collecting and arranging the existing data of the sewage pipe network in the range to be detected;
s2, researching the actual operation scale and the design scale of the sewage treatment plant/sewage lifting pump station in the range to be detected;
s3, judging the water level condition of the sewage pipe network according to the data comparison of the actual operation scale and the design scale;
s4, reducing the water level of each sewage pipeline to be suitable for CCTV or QV work of detection equipment, and gradually detecting the sewage pipelines from downstream to upstream and repairing the defects of the pipelines by adopting CCTV or QV from a sewage treatment plant/sewage lifting pump station;
and S5, after the sewage pipe network is detected, removing the means for reducing the water level of each sewage pipe and recovering the detection equipment, namely completing the efficient detection of the health condition of the high-water-level operation pipe.
2. The high-water-level operation pipeline health condition efficient detection method according to claim 1, characterized in that: in the step S1, the collected and arranged data includes collecting design data and completion data of the sewage treatment plant/sewage lifting pump station and the sewage pipe, integrating all the data to form a regional sewage system diagram, collecting recent operating conditions of the sewage treatment plant/sewage lifting pump station, and collecting surface water body information of a covered region of the sewage pipe network.
3. The high-water-level operation pipeline health condition efficient detection method according to claim 2, characterized in that: the regional sewage system diagram comprises the pipe diameter of a sewage pipe, the serial number of an inspection well, the form of an intercepting well, the burial depth of the bottom of the pipe, the burial depth of the bottom of the inspection well, the design scale of a sewage treatment plant, the form of a sewage lifting pump station and the design scale.
4. The high water level operation pipeline health condition efficient detection method according to claim 2, characterized in that: the operation working conditions comprise the water treatment amount of the sewage treatment plant every year, every month, every day and every hour, or the operation water level of the sewage lifting pump station every year, every month, every day and every hour.
5. The high-water-level operation pipeline health condition efficient detection method according to claim 2, characterized in that: the surface water body information of the sewage pipe network coverage area comprises information such as a water environment functional area, a water quality current situation, flow velocity, tidal sensation attribute, a wading structure, a water user and water environment sensitive point distribution situation and the like.
6. The high-water-level operation pipeline health condition efficient detection method according to claim 1, characterized in that: in the step S3, when the design scale of the sewage treatment plant/sewage lifting pump station is larger than the actual operation scale, the sewage pipe network is in a low water level operation working condition;
when the design scale of the sewage treatment plant/sewage lifting pump station is equal to or smaller than the actual operation scale, the sewage pipe network is in a high water level operation working condition.
7. The high-water-level operation pipeline health condition efficient detection method according to claim 1, characterized in that: in the step S4, the method for reducing the water level comprises the steps of plugging the sewage branch pipe and increasing the treatment capacity according to the change coefficient of the sewage treatment plant/sewage lifting pump station.
8. The high-water-level operation pipeline health condition efficient detection method according to claim 1, characterized in that: in the step S4, the pipeline defects include structural defects and functional defects, the structural defects include pipeline deformation, stagger and undulation, and the functional defects include deposition, scaling, obstacles and residual walls.
9. The high-water-level operation pipeline health condition efficient detection method according to claim 1, characterized in that: and in the step S4, the method for repairing the pipeline defect comprises winch dredging, jet dredging, support excavation repairing and non-excavation in-situ repairing.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117250201A (en) * | 2023-11-08 | 2023-12-19 | 深圳市洪发建筑工程有限公司 | Swimming pool brick layer defect detection method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117250201A (en) * | 2023-11-08 | 2023-12-19 | 深圳市洪发建筑工程有限公司 | Swimming pool brick layer defect detection method and system |
| CN117250201B (en) * | 2023-11-08 | 2024-02-13 | 深圳市洪发建筑工程有限公司 | Swimming pool brick layer defect detection method and system |
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