CN213299632U - High-precision alarm device for leakage of water supply pipeline - Google Patents
High-precision alarm device for leakage of water supply pipeline Download PDFInfo
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- CN213299632U CN213299632U CN202021655923.8U CN202021655923U CN213299632U CN 213299632 U CN213299632 U CN 213299632U CN 202021655923 U CN202021655923 U CN 202021655923U CN 213299632 U CN213299632 U CN 213299632U
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Abstract
The utility model discloses a high-precision alarm device for water supply pipeline leakage, which comprises a flow sensor, a pressure gauge and a data alarm device; the flow sensor and the pressure gauge are connected to the water supply pipeline, the first flow sensor and the first pressure gauge are arranged at the head end of the water supply pipeline, the second pressure gauge is arranged at the downstream 10m-50m of the first pressure gauge, the third pressure gauge is arranged at the upstream 5m-10m of the reducing position of the water supply pipeline, the fourth pressure gauge is arranged at the downstream 5m-10m of the reducing position of the water supply pipeline, the fifth pressure gauge is arranged at the downstream 10m-50m of the fourth pressure gauge, and the sixth pressure gauge is arranged at the tail end of the water supply pipeline; the flow sensor and the pressure gauge are both connected with the data alarm device. The utility model discloses quantized the influence of the change of water supply pipe elbow quantity, valve member aperture, water supply flow and pipe diameter size to water supply pipe pressure gradient, its simple structure, low cost, degree of accuracy height.
Description
Technical Field
The utility model belongs to the technical field of the pipeline leak testing, in particular to high accuracy alarm device that water supply pipe leaked.
Background
In daily water supply pipeline leakage treatment, firstly, whether a pipeline leaks or not needs to be judged, and a positioning system is used for accurately positioning a leakage point for treatment after leakage is determined.
At present, the devices or methods for judging pipeline leakage in the market mainly comprise:
the Chinese patent application with publication number CN109812713A discloses a device and a method for detecting leakage of an underwater pipeline, and provides a device which is provided with a layer of calcium oxide and a temperature sensor between heat-insulating layers of pipelines, and utilizes the temperature sensor to detect a reaction heat release signal of water leakage and the calcium oxide so as to judge leakage of the pipelines; chinese patent publication No. CN109185711B discloses a municipal drainage pipeline leakage monitoring construction method and a monitoring method thereof, and provides a device for determining pipeline leakage directly by the change of flow in the pipeline, wherein a plurality of flow sensors (with high cost) are arranged on the pipeline. However, the calcium oxide and the temperature sensor are arranged between the heat insulating layers or a plurality of flow sensors are arranged on the pipeline, so that the cost of the calcium oxide and the temperature sensor is high, and the calcium oxide and the temperature sensor cannot be widely popularized.
The Chinese patent application with publication number CN106090629A discloses a system and a method for detecting a water supply pipeline of an urban underground pipe gallery, and provides a device which is provided with pressure detectors respectively arranged at the first section and the tail end of the water supply pipeline and directly judges the leakage of the pipeline through a descending inflection point generated by negative pressure waves between the pressure detectors and the tail end of the water supply pipeline. However, the negative pressure wave between the first section pressure detector and the tail end pressure detector can generate a drop inflection point due to the change of the water supply flow of the water supply pipeline or the adjustment of the opening degree of the valve member, and the like, so that the device is easy to misjudge the pipeline leakage.
The Chinese patent application with publication number CN107218517A discloses a system and a method for detecting leakage of a water supply pipeline of an urban underground pipe gallery, and provides a device for judging leakage of the pipeline by arranging two pressure testers on the water supply pipeline every 30-100 meters and directly taking the change of 10% of the difference value of two adjacent pressure gradients as a node. However, the influence factor of the change of the pipeline pressure gradient is complex, and the pipeline leaks when the change of the pressure gradient is generally less than 10%, so that the device has insufficient judgment accuracy on the pipeline leakage.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned not enough that exists among the prior art, and provide a water supply pipe leakage alarm device that simple structure, low cost, degree of accuracy are high to improve the accuracy that the pipeline leaked the judgement, reduce the manpower and materials input in the water supply pipe leakage treatment process.
The utility model provides a technical scheme that above-mentioned problem adopted is: a high-precision alarm device for water supply pipeline leakage comprises a water supply pipeline and is characterized by further comprising a flow sensor, a first pressure gauge, a second pressure gauge, a third pressure gauge, a fourth pressure gauge, a fifth pressure gauge, a sixth pressure gauge and a data alarm device; the flow sensor, the first pressure gauge, the second pressure gauge, the third pressure gauge, the fourth pressure gauge, the fifth pressure gauge and the sixth pressure gauge are all connected to the water supply pipeline, the flow sensor and the first pressure gauge are arranged at the head end of the water supply pipeline, the second pressure gauge is arranged at the downstream 10m-50m of the first pressure gauge, the third pressure gauge is arranged at the upstream 5m-10m of the reducing position of the water supply pipeline, the fourth pressure gauge is arranged at the downstream 5m-10m of the reducing position of the water supply pipeline, the fifth pressure gauge is arranged at the downstream 10m-50m of the fourth pressure gauge, and the sixth pressure gauge is arranged at the tail end of the water supply pipeline; and the flow sensor, the first pressure gauge, the second pressure gauge, the third pressure gauge, the fourth pressure gauge, the fifth pressure gauge and the sixth pressure gauge are connected with the data alarm device.
Compared with the prior art, the utility model, have following advantage and effect: adopt the utility model discloses afterwards, not only quantized the influence of the change of water supply pipe elbow quantity, valve member aperture, water supply flow and pipe diameter size to water supply pipe pressure gradient, improved the degree of accuracy that the pipeline leaked the judgement greatly, simple structure, low cost have moreover greatly reduced the manpower and materials input of water supply pipe leakage processing in-process, are a practical high accuracy water supply pipe leakage alarm device.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: the device comprises a flow sensor 1, a first pressure gauge 2, a second pressure gauge 3, a third pressure gauge 4, a fourth pressure gauge 5, a fifth pressure gauge 6, a sixth pressure gauge 7, a data alarm device 8 and a water supply pipeline 9.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not intended to limit the present invention.
Referring to fig. 1, a high-precision alarm device for water supply pipeline leakage comprises a water supply pipeline 9, and further comprises a flow sensor 1, a first pressure gauge 2, a second pressure gauge 3, a third pressure gauge 4, a fourth pressure gauge 5, a fifth pressure gauge 6, a sixth pressure gauge 7 and a data alarm device 8; the flow sensor 1, the first pressure gauge 2, the second pressure gauge 3, the third pressure gauge 4, the fourth pressure gauge 5, the fifth pressure gauge 6 and the sixth pressure gauge 7 are connected to the water supply pipeline 9, the flow sensor 1 and the first pressure gauge 2 are arranged at the head end of the water supply pipeline 9, the second pressure gauge 3 is arranged at the downstream 10m-50m of the first pressure gauge 2, the third pressure gauge 4 is arranged at the upstream 5m-10m of the variable diameter position of the water supply pipeline 9, the fourth pressure gauge 5 is arranged at the downstream 5m-10m of the variable diameter position of the water supply pipeline 9, the fifth pressure gauge 6 is arranged at the downstream 10m-50m of the fourth pressure gauge 5, and the sixth pressure gauge 7 is arranged at the tail end of the water supply pipeline 9; the flow sensor 1, the first pressure gauge 2, the second pressure gauge 3, the third pressure gauge 4, the fourth pressure gauge 5, the fifth pressure gauge 6 and the sixth pressure gauge 7 are all connected with the data alarm device 8, and the data alarm device 8 adopts the existing product.
The technical route of the utility model:
by arranging the unique flow sensor 1 and the pressure gauges, the on-way resistance coefficient before and after the diameter change of the water supply pipeline 9 and the influence of the pipeline diameter change on the pressure gradient of the water supply pipeline 9 are calculated by combining the water flow speed, the pipe diameter size and the gauge distance parameters of the pressure gauges, and the influence of the equivalent length collinear diagram of the pipe fittings and the valve members and the Darcy formula on the pressure gradient of the water supply pipeline 9, the number of the elbows of the water supply pipeline 9, the opening degree of the valve members and the water supply flow rate are quantized. The specific implementation steps are as follows:
1. the water flow speed in different pipe sections of the water outlet pipeline 9 is calculated by combining the pipe diameter size through the only flow sensor 1.
2. The method comprises the steps of calculating the on-way resistance coefficient before and after the diameter of a water supply pipeline 9 is changed and calculating the on-way resistance coefficient after the diameter is changed by combining the pressure gradient of a first pressure gauge 2, a second pressure gauge 3, a fourth pressure gauge 5 and a fifth pressure gauge 6 and combining the water flow speed, the pipe diameter size and the distance parameter of the pressure gauges, and further quantifying the influence of the number of elbows of the water supply pipeline 9, the opening degree of a valve and the water supply flow on the pressure gradient of the water supply pipeline 9 by utilizing the equivalent length collinear diagram and the Darcy formula of the pipe fitting and.
3. And the influence of the pipe diameter change of the water supply pipeline 9 on the pressure gradient of the water supply pipeline 9 is quantified through the pressure gradients of the third pressure gauge 4 and the fourth pressure gauge 5.
4. The high-precision alarm of the pipeline leakage is realized by the data alarm device 8 through accurately comparing the actual pressure gradient of the first pressure gauge 2, the third pressure gauge 4, the fourth pressure gauge 5 and the sixth pressure gauge 7 with the theoretically calculated pressure gradient.
Those not described in detail in this specification are well within the skill of the art.
In addition, it should be noted that the above contents described in the present specification are only illustrations of the structure of the present invention. All equivalent changes made according to the structure, characteristics and principle of the utility model are included in the protection scope of the utility model. Various modifications, additions and substitutions by those skilled in the art may be made to the described embodiments without departing from the scope of the invention as defined in the accompanying claims.
Claims (1)
1. A high-precision alarm device for water supply pipeline leakage comprises a water supply pipeline (9), and is characterized by further comprising a flow sensor (1), a first pressure gauge meter (2), a second pressure gauge meter (3), a third pressure gauge meter (4), a fourth pressure gauge meter (5), a fifth pressure gauge meter (6), a sixth pressure gauge meter (7) and a data alarm device (8); the flow sensor (1), the first pressure gauge (2), the second pressure gauge (3), the third pressure gauge (4), the fourth pressure gauge (5), the fifth pressure gauge (6) and the sixth pressure gauge (7) are all connected to a water supply pipeline (9), the flow sensor (1) and the first pressure gauge (2) are arranged at the head end of the water supply pipeline (9), the second pressure gauge (3) is arranged at the position 10m-50m downstream of the first pressure gauge (2), the third pressure gauge (4) is arranged at the position 5m-10m upstream of the diameter-changing position of the water supply pipeline (9), the fourth pressure gauge (5) is arranged at the position 5m-10m downstream of the reducing position of the water supply pipeline (9), the fifth manometer meter (6) is arranged at the position 10m-50m downstream of the fourth manometer meter (5), the six pressure gauge (7) is arranged at the tail end of the water supply pipeline (9); the flow sensor (1), the first pressure meter (2), the second pressure meter (3), the third pressure meter (4), the fourth pressure meter (5), the fifth pressure meter (6) and the sixth pressure meter (7) are all connected with the data alarm device (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021655923.8U CN213299632U (en) | 2020-08-11 | 2020-08-11 | High-precision alarm device for leakage of water supply pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021655923.8U CN213299632U (en) | 2020-08-11 | 2020-08-11 | High-precision alarm device for leakage of water supply pipeline |
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| Publication Number | Publication Date |
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| CN213299632U true CN213299632U (en) | 2021-05-28 |
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| CN202021655923.8U Active CN213299632U (en) | 2020-08-11 | 2020-08-11 | High-precision alarm device for leakage of water supply pipeline |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883422A (en) * | 2021-09-10 | 2022-01-04 | 江苏禹治流域管理技术研究院有限公司 | Urban water supply pipe network leakage on-line monitoring system |
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2020
- 2020-08-11 CN CN202021655923.8U patent/CN213299632U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113883422A (en) * | 2021-09-10 | 2022-01-04 | 江苏禹治流域管理技术研究院有限公司 | Urban water supply pipe network leakage on-line monitoring system |
| CN113883422B (en) * | 2021-09-10 | 2023-06-02 | 江苏禹治流域管理技术研究院有限公司 | Urban water supply network leakage on-line monitoring system |
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