CN112944225A - Online leakage-detecting water supply pipeline system and online leakage monitoring method - Google Patents
Online leakage-detecting water supply pipeline system and online leakage monitoring method Download PDFInfo
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- CN112944225A CN112944225A CN202110125147.3A CN202110125147A CN112944225A CN 112944225 A CN112944225 A CN 112944225A CN 202110125147 A CN202110125147 A CN 202110125147A CN 112944225 A CN112944225 A CN 112944225A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000012544 monitoring process Methods 0.000 title claims abstract description 12
- 238000001514 detection method Methods 0.000 claims abstract description 64
- 238000012545 processing Methods 0.000 claims abstract description 28
- 230000005236 sound signal Effects 0.000 claims description 62
- 238000004458 analytical method Methods 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 claims description 2
- 239000000565 sealant Substances 0.000 claims description 2
- 230000003321 amplification Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 4
- 238000003199 nucleic acid amplification method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
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Abstract
The invention discloses an online leakage-detecting water supply pipeline system and a water leakage online monitoring method, wherein the online leakage-detecting water supply pipeline system comprises: a water supply pipeline; the leakage detection sound pickups are arranged on the water supply pipeline, the number of the leakage detection sound pickups is multiple, and the multiple leakage detection sound pickups are arranged at intervals along the length direction of the water supply pipeline; and the plurality of leakage detection sound pickups are connected with the calculation processing device. The online leakage-detecting water supply pipeline system and the online leakage monitoring method can monitor the leakage condition of the water supply pipeline in real time on line, conveniently and timely find the leakage position, and reduce the loss caused by water leakage.
Description
Technical Field
The invention relates to the technical field of water supply, in particular to an online leakage-detecting water supply pipeline system and an online leakage monitoring method.
Background
At present, the leakage rate of the tap water supply industry is generally higher, the pipe network is corroded or the loss caused by hidden water leakage caused by damage caused by external force is huge, and the water leakage investigation under most conditions is difficult. At present, online leakage detection equipment for monitoring leakage of a water supply pipeline in real time is lacked.
Disclosure of Invention
The invention mainly aims to provide an online leakage-detecting water supply pipeline system and an online leakage-detecting method.
In order to achieve the above object, the present invention provides an on-line leak-detecting water supply pipe system, comprising:
a water supply pipeline;
the leakage detection sound pickups are arranged on the water supply pipeline, the number of the leakage detection sound pickups is multiple, and the multiple leakage detection sound pickups are arranged at intervals along the length direction of the water supply pipeline;
and the plurality of leakage detection sound pickups are connected with the calculation processing device.
Further, the leak detection pickup includes:
the bottom of the sound amplifying cover is provided with an opening, and the outline of the opening is matched with the outer wall of the water supply pipeline;
and the pickup sensor is arranged on the sound amplification cover and is connected with the calculation processing device.
Furthermore, the leakage detection pickup also comprises an external wave absorbing layer, and the external wave absorbing layer is attached to the outer side of the sound diffusion cover.
Further, the sound amplifying cover is fixed on the outer wall of the water supply pipeline in a sealing mode through sealing glue arranged at the edge outline of the opening.
Furthermore, still connect a fixed band on the public address cover, the fixed band winding is on water supply pipe and with public address cover fixed mounting on water supply pipe.
Furthermore, a plurality of leakage detection sound pickups are arranged at equal intervals along the length direction of the water supply pipeline, and the interval between every two adjacent leakage detection sound pickups is 20-50 m.
According to another aspect of the present invention, there is provided an online water leakage monitoring method for an online water leakage detecting water supply pipeline system, comprising the following steps:
step S1: respectively acquiring sound signals at corresponding positions on a water supply pipeline in real time through a plurality of leakage detection sound pickups, and sending the acquired sound signals to a computing processing device;
step S2: the calculation processing device processes and analyzes the collected sound signals, when the sound signals collected by a certain leakage detection sound pickup include water leakage sound signals, the water leakage sound signal intensities of the leakage detection sound pickup and a plurality of left and right adjacent leakage detection sound pickups are compared, the leakage detection sound pickup with the maximum water leakage sound signal intensity is determined, and the position of the leakage detection sound pickup with the maximum water leakage sound signal intensity is the approximate position of a water leakage point.
Further, in step S2, the leakage sound signal intensities of the leakage sound pickup and the plurality of leakage sound pickups adjacent to each other on the left and right are compared to determine the leakage sound pickup having the largest leakage sound signal intensity, specifically:
and when the water leakage sound signal intensity of the water leakage sound pickup is simultaneously greater than the sound signal intensity of the water leakage sound pickup at the left side and the right side, the water leakage sound pickup is the water leakage sound pickup with the maximum water leakage sound signal intensity.
By applying the technical scheme of the invention, a plurality of leakage detection sound pickups are arranged on the water supply pipeline at intervals along the length direction of the water supply pipeline, and are respectively connected with the calculation processing device; the sound signals of different lengths of the water supply pipeline are monitored in real time through the plurality of leakage detection sound pickups respectively, the collected sound signals are sent to the calculation processing device, the collected sound signals are processed and analyzed through the calculation processing device, the sound signals collected through the leakage detection sound pickups are compared with preset water leakage sound signals, the intensity of the water leakage sound signals in the sound signals collected through the adjacent leakage detection sound pickups is compared, and the approximate position of a water leakage point on the water supply pipeline can be determined. This water supply pipe system leaks hunting on line can online real-time supervision water supply pipe's the leakage condition, and the convenient instant discovery leakage position reduces the loss that leaks and cause.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the on-line leak-detecting water supply piping system of the present invention (the computing processing means is not shown).
FIG. 2 is a schematic cross-sectional view of the water supply pipeline system for on-line leak detection according to the present invention with a leak detection pickup mounted thereon.
FIG. 3 is an enlarged cross-sectional view of the leak-detecting pickup of the on-line leak-detecting water supply piping system of the present invention.
FIG. 4 is a block diagram showing the connection between the leak detection pickup and the computation processing device in the on-line leak detection water supply pipeline system according to the present invention.
Wherein the figures include the following reference numerals:
1. a water supply pipeline; 2. a leak detection pickup; 3. a calculation processing device; 21. a sound amplification cover; 22. a pickup sensor; 23. an outer wave absorbing layer; 100. a trench; 211. and (4) opening.
Detailed Description
In order to facilitate an understanding of the invention, the invention will be described more fully and in detail below with reference to the accompanying drawings and preferred embodiments, but the scope of the invention is not limited to the specific embodiments below. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
Unless otherwise defined, all terms of art used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The use of "first," "second," and similar terms in the description and in the claims of the present application do not denote any order, quantity, or importance, but rather the intention is to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships are changed accordingly.
Referring to fig. 1 to 4, an on-line leak testing water supply pipeline system according to an embodiment of the invention includes a water supply pipeline 1, a leak testing pickup 2 and a calculation processing device 3. Wherein the water supply pipeline 1 is arranged in the trench 100; the leakage detection sound pickup 2 is arranged on the water supply pipeline 1, the number of the leakage detection sound pickup 2 is multiple, and the multiple leakage detection sound pickup 2 are arranged at intervals along the length direction of the water supply pipeline 1; the plurality of leak detection pickups 2 are respectively connected to the calculation processing device 3.
In the online leakage-detecting water supply pipeline system, a plurality of leakage-detecting sound pickups 2 are arranged on the water supply pipeline 1 at intervals along the length direction of the water supply pipeline, and the plurality of leakage-detecting sound pickups 2 are respectively connected with the computing processing device 3; the sound signals of different lengths of the water supply pipeline 1 are respectively monitored in real time through the plurality of leak detection sound pickups 2, the collected sound signals are sent to the calculation processing device 3, the collected sound signals are processed and analyzed by the calculation processing device 3, and the approximate position of a water leakage point on the water supply pipeline 1 is determined. And, the monitoring data may be transmitted to a cloud server (not shown in the figure) through the wireless transmission module.
Specifically, referring to fig. 2 and 3, in the present embodiment, the leak detection microphone 2 includes a sound expansion cover 21 and a microphone sensor 22. Wherein, the bottom of the sound-amplifying cover 21 is provided with an opening 211, the edge contour of the opening 211 is adapted to the outer wall of the water supply pipeline 1, and the sound-amplifying cover 21 is covered on the outer wall of the water supply pipeline 1 through the opening 211; the sound pickup sensor 22 is mounted on the sound expansion cover 21, the sound pickup sensor 22 is connected with the calculation processing device 3, and the sound pickup sensor 22 is used for collecting sound signals at the corresponding position of the water supply pipeline 1 and sending the sound signals to the calculation processing device 3.
In order to reduce the noise of the sound signal collected by the leakage detection sound pickup 2, referring to fig. 2 and 3, in this embodiment, the leakage detection sound pickup 2 further includes an outer wave-absorbing layer 23, and the outer wave-absorbing layer 23 is attached to the outer side of the sound expansion cover 21; the sensing part of the sound pickup sensor 22 is arranged in the sound amplification cover 21. The external wave absorbing layer 23 is made of wave absorbing material and is attached to the outer side of the sound amplifying cover 21 to absorb external sound waves, so that interference of the external sound waves on sound signals collected by the sound pickup sensor 22 is reduced, and the accuracy of a water leakage monitoring result is improved.
Specifically, the calculation processing device 3 includes an amplification unit, a filtering unit, an a/D conversion unit, a calculation processing chip, and the like. The output end of the pickup sensor 22 is connected with the input end of the amplifying unit, the output end of the amplifying unit is connected with the input end of the filtering unit, the output end of the filtering unit is connected with the input end of the A/D conversion unit, and the output end of the A/D conversion unit is connected with the input end of the calculation processing chip. The sound signal of leaking that pickup sensor 22 gathered is through enlargiing, filtering back with analog signal conversion digital signal, then carries out the analysis through the signal of calculation processing chip.
In the present embodiment, the sound-deadening hood 21 is sealingly fixed to the outer wall of the water supply pipeline 1 by a sealant provided at the edge contour of the opening 211. By adopting the installation mode, the structure is simple and the operation is convenient. In addition, other conventional connecting means may be used to attach the sound-damping cover 21 to the water supply pipe 1. For example, a fixing band may be attached to the sound-deadening cover 21, wound around the water supply pipe, and by which the sound-deadening cover 21 is fixedly mounted on the water supply pipe 1. Also, multiple mounting means may be combined.
Specifically, referring to fig. 1, in the present embodiment, a plurality of leakage detection pickups 2 are arranged at equal intervals along the length direction of the water supply pipeline 1, and the interval between two adjacent leakage detection pickups 2 is about 20-50 m. By the arrangement, the detection of the water leakage point can be realized with certain precision, and the equipment cost can be reduced. If the leak detection sound pickups 2 are spaced too close, the number of the leak detection sound pickups 2 arranged on the water supply pipeline 1 with the same length will be increased, and the equipment cost is increased; if the interval of the leak detection sound pickup 2 is too far, the accuracy of detecting the water leakage point can be greatly reduced. In addition, the main water supply pipeline in the municipal water supply system can cause great loss when water leaks, and the loss is relatively small when the branch pipeline leaks water; the water supply pipeline 1 in the present invention thus refers to the main water supply pipeline in a municipal water supply system.
The method for online monitoring water leakage of the online leakage-detecting water supply pipeline system comprises the following steps:
step S1: respectively acquiring sound signals at corresponding positions on the water supply pipeline 1 in real time through the plurality of leakage detection sound pickups 2, and sending the acquired sound signals to the computing and processing device 3;
step S2: the calculation processing device 3 processes and analyzes the collected sound signals, compares the sound signals collected by each leakage detection pickup 2 with the preset water leakage sound signals, and when the sound signals collected by a certain leakage detection pickup 2 contain the water leakage sound signals, compares the water leakage sound signal intensity of the leakage detection pickup 2 and a plurality of the left and right adjacent leakage detection pickups 2, thereby determining the leakage detection pickup 2 with the maximum water leakage sound signal intensity, and the position of the leakage detection pickup 2 with the maximum water leakage sound signal intensity is the approximate position of the water leakage point on the water supply pipeline 1.
Further, in step S2, the sound signal intensities of the leakage sound pickup 2 and the plurality of leakage sound pickups 2 adjacent to each other on the left and right are compared, and the leakage sound pickup 2 having the largest sound signal intensity of the leakage sound is specified, specifically: the leakage sound signal intensity of the leakage sound pickup 2 including the leakage sound signal is compared with the leakage sound signal intensity of the leakage sound pickup 2 adjacent to the left and right sides of the leakage sound pickup 2, and when the leakage sound signal intensity of the leakage sound pickup 2 is simultaneously greater than the sound signal intensity of the leakage sound pickup 2 adjacent to the left and right sides, the leakage sound pickup 2 is the leakage sound pickup 2 with the largest leakage sound signal intensity.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An on-line leak-detecting water supply pipe system, comprising:
a water supply pipeline (1);
the leakage detection pickup devices (2) are arranged on the water supply pipeline (1), the number of the leakage detection pickup devices (2) is multiple, and the multiple leakage detection pickup devices (2) are arranged at intervals along the length direction of the water supply pipeline (1);
and the leakage detection pickup devices (2) are connected with the calculation processing device (3).
2. An on-line leak-detecting water supply pipe system according to claim 1, characterized in that the leak-detecting pickup (2) comprises:
the bottom of the sound diffusion cover (21) is provided with an opening (211), and the outline of the opening (211) is adapted to the outer wall of the water supply pipeline (1);
and the sound pickup sensor (22) is arranged on the sound expansion cover (21), and the sound pickup sensor (22) is connected with the calculation processing device (3).
3. The on-line leak-detecting water supply pipeline system according to claim 2, wherein the leak-detecting pickup (2) further comprises an outer wave-absorbing layer (23), and the outer wave-absorbing layer (23) is attached to the outer side of the sound-diffusing cover (21).
4. An on-line leak-detecting water supply pipe system as claimed in claim 2, wherein the sound-deadening hood (21) is sealingly fixed to the outer wall of the water supply pipe (1) by a sealant provided at the edge contour of the opening (211).
5. An on-line leak-detecting water supply pipe system as claimed in claim 2, wherein a fixing band is further attached to the sound-amplifying cover (21), and the fixing band is wound around the water supply pipe (1) and fixedly mounts the sound-amplifying cover (21) on the water supply pipe (1).
6. The on-line leak detection water supply pipe system according to any one of claims 1 to 5, wherein a plurality of the leak detection pickups (2) are arranged at equal intervals along the length direction of the water supply pipe (1), and the interval between adjacent leak detection pickups (2) is 20-50 m.
7. The method for on-line monitoring water leakage of an on-line leak detecting water supply pipe system as claimed in any one of claims 1 to 6, comprising the steps of:
step S1: sound signals at corresponding positions on the water supply pipeline (1) are collected in real time through the plurality of leakage detection sound pickups (2) respectively, and the collected sound signals are sent to the computing and processing device (3);
step S2: the calculation processing device (3) is handled and the analysis the sound signal of gathering, when certain when including the sound signal that leaks among the sound signal of hunting adapter (2) collection, compare this sound signal that leaks (2) and control the sound signal intensity that leaks of a plurality of adjacent pickups (2), confirm sound signal intensity that leaks and leak the biggest sound signal intensity and leak pickup (2), this sound signal intensity that leaks is the biggest leaks pickup (2) the position that leaks and is the approximate position of water leakage point promptly for the sound signal intensity that leaks.
8. The online leakage monitoring method for the water supply pipeline system according to claim 7, wherein in step S2, the signal intensities of the sound leaking from the leakage detecting sound pickup (2) and the sound leaking from the multiple sound leaking pickup (2) adjacent to each other are compared to determine the sound leaking pickup (2) with the maximum signal intensity, specifically:
the leakage detection sound pickup (2) containing the leakage sound signal is compared with the leakage sound signal intensity of the leakage detection sound pickup (2) adjacent to the left side and the right side of the leakage detection sound pickup, and when the leakage sound signal intensity of the leakage detection sound pickup (2) is simultaneously greater than the sound signal intensity of the leakage detection sound pickup (2) on the left side and the right side, the leakage detection sound pickup (2) is the leakage detection sound pickup (2) with the maximum leakage sound signal intensity.
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Cited By (2)
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| CN114383052A (en) * | 2022-01-10 | 2022-04-22 | 南昌县供水有限责任公司 | Online leakage-detecting water supply pipeline system and online leakage monitoring method |
| CN116857572A (en) * | 2023-07-14 | 2023-10-10 | 湖南理工学院 | Intelligent water management method and system based on big data |
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