A pipeline leakage fixed-point monitoring device for urban water supply systems and its monitoring method

Abstract

The present invention discloses a pipeline leakage fixed-point monitoring device for a city water supply system and a monitoring method thereof, including an upper fixing seat, below which there is a lower fixing seat. The upper fixing seat and the lower fixing seat are in a hoop shape and are fixedly sleeved on the pipeline through bolt connection. A positioning strip is welded to the bottom of the upper fixing seat, and sealing rings are installed at the ends of the upper fixing seat and the lower fixing seat; a telescopic groove is opened on the inner wall of the upper fixing seat, and a telescopic rod is placed in the telescopic groove, and a limiting rod is welded to the side of the telescopic rod; a moving groove runs through the interiors of the upper fixing seat and the lower fixing seat, and a toothed ring is placed in the moving groove, and one end of the adjusting groove is connected to an adjusting rod through a second spring. This pipeline leakage fixed-point monitoring device for a city water supply system and the monitoring method thereof utilize buoyancy to conduct fixed-point leakage monitoring on pipeline joints, and at the same time utilize the buoyancy of the leakage to achieve the plugging of the leakage point.

Description

Technical Field

[0001] The present invention relates to the technical field of urban water supply systems, and particularly to a pipeline leakage fixed-point monitoring device and a monitoring method for an urban water supply system. Background Technique

[0002] In urban life, water resources are the resources on which humans depend for survival. To ensure the daily water use of urban residents, it is particularly important to lay a water supply system in the city. In the water supply system, water is mainly transported through pipelines. However, pipelines that have been used for a long time, especially at the pipeline joints, are prone to leakage due to factors such as water pressure, climate, and environment. To obtain leakage location data in a timely manner and reduce water loss, leakage fixed-point monitoring devices are usually installed at the pipeline joints. However, the existing leakage fixed-point monitoring devices have the following problems when in use:

[0003] With the development of technology, the use of technologies such as ultrasonic waves and lasers for real-time monitoring of pipelines has gradually been put into use. However, this monitoring method requires continuous power consumption, is not convenient to use the buoyancy of the leaked water for auxiliary monitoring, consumes a large amount of electricity, requires laying a large number of power grids, or consumes a large amount of batteries. At the same time, the existing leakage fixed-point monitoring devices are not convenient to block the leakage point in a timely manner when the pipeline leakage is detected, resulting in continuous leakage of water and wasting resources.

[0004] In view of the above problems, there is an urgent need to innovate and design on the basis of the original leakage fixed-point monitoring device. Summary of the Invention

[0005] The purpose of the present invention is to provide a pipeline leakage fixed-point monitoring device and a monitoring method for an urban water supply system to solve the problems in the above background technique that the existing leakage fixed-point monitoring devices are not convenient to use the buoyancy of the leaked water for auxiliary monitoring and are not convenient to block the leakage point in a timely manner.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A pipeline leakage fixed-point monitoring device for an urban water supply system, including;

[0007] An upper fixing seat, below which there is a lower fixing seat. The upper fixing seat and the lower fixing seat are in a hoop shape and are connected and fixed by bolts and sleeved on the pipeline. The middle parts of the upper fixing seat and the lower fixing seat are located outside the upper flange of the pipeline. A positioning strip is welded to the bottom of the upper fixing seat, and the positioning strip is located in a positioning groove, and the positioning groove is opened on the top of the lower fixing seat. Sealing rings are installed at the ends of the upper fixing seat and the lower fixing seat, and a control box is bolt-fixed to the side of the protruding part at the top of the upper fixing seat;

[0008] The telescopic groove is opened on the inner wall of the upper fixing seat. A telescopic rod is placed in the telescopic groove, and one end of the telescopic rod penetrates through the telescopic groove and is fixed with a floating plate. A limiting rod is welded on the side of the telescopic rod, and the limiting rod is located in the limiting groove. The limiting groove is opened on the side wall of the telescopic groove. A first spring is fixed between the bottom of the limiting rod and the limiting groove. At the same time, a pressure sensor is installed at the top of the limiting groove;

[0009] The movable groove runs through the upper fixing seat and the lower fixing seat. A toothed ring is placed in the movable groove. An adjusting groove runs through the upper fixing seat and the lower fixing seat and the interior. A cam is axially connected in the adjusting groove. One end of the adjusting groove is connected with an adjusting rod through a second spring. One end of the adjusting rod penetrates through the adjusting groove and is welded with a sealing plate inside the upper fixing seat and the lower fixing seat. The sealing plate is located outside the flange.

[0010] Preferably, the positioning strip and the positioning groove are engaged with each other. Two positioning strips are symmetrically arranged at the bottom of the upper fixing seat. The two positioning strips are inserted into the positioning groove. With the cooperation of the sealing ring, the sealing performance between the upper fixing seat, the lower fixing seat and the pipeline is maintained.

[0011] Preferably, a rack is fixed on the telescopic rod. A first gear and a second gear are arranged on the outer side of the telescopic rod. The first gear and the second gear are both embedded and axially connected inside the upper fixing seat. When the telescopic rod is stressed and moves, the rack contacts the first gear.

[0012] Preferably, the racks are evenly distributed on the outer side of the telescopic rod. The rack meshes with the first gear. The first gear meshes with the second gear. The second gear meshes with the toothed ring. When the telescopic rod is stressed and moves, it drives the first gear to rotate, and drives the toothed ring to rotate through the second gear.

[0013] Preferably, the floating plate is designed in an arc structure that is concave downward. Two floating plates are symmetrically arranged with respect to the sealing plate. When the leaked water fills the upper fixing seat and the lower fixing seat, the floating plate can drive the telescopic rod to move upward under force.

[0014] Preferably, the limiting rod and the telescopic rod fit and slide in the limiting groove and the telescopic groove respectively. The limiting rod forms an elastic sliding structure in the limiting groove through the first spring. The limiting rod follows the telescopic rod to move and contacts the pressure sensor. With the cooperation of the control box, the reception, processing and transmission of monitoring data are realized.

[0015] Preferably, the outer side of the cam is designed in a serrated structure. The cam meshes with the toothed ring. When the toothed ring rotates, it can drive the cam to rotate.

[0016] Preferably, the adjusting rod fits and slides in the adjusting groove through the second spring, and the blocking plate at one end of the adjusting rod is designed with an arc structure. Moreover, two blocking plates are symmetrically arranged in both the upper fixing seat and the lower fixing seat, and the four blocking plates form an annular structure that fits against the outer side of the flange. When the cam rotates, it squeezes the adjustment, causing the blocking plate of the adjusting rod to move, and the four blocking plates block the flange gap at both ends of the pipeline.

[0017] Another technical solution provided by the present invention is to provide a monitoring method for a pipeline leakage fixed-point monitoring device for an urban water supply system, including the following steps:

[0018] S1: First, the upper fixing seat and the lower fixing seat are sleeved at the interface of the pipeline, and the protruding positions of the upper fixing seat and the lower fixing seat correspond to the flange, so that the positioning strip is inserted into the positioning groove, and the upper fixing seat and the lower fixing seat are sealed with the pipeline in cooperation with the sealing ring;

[0019] S2: When there is a leakage at the flange connection of the pipeline, water enters the inside of the upper fixing seat and the lower fixing seat. As the water level rises, it drives the floating plate to float, and then drives the telescopic rod to slide upward in the telescopic groove;

[0020] S3: The telescopic rod drives the limiting rod to slide upward in the limiting groove under force, so that the top of the limiting rod contacts the pressure sensor. The pressure sensor transmits the signal to the control box, and the control box receives, processes and transmits the signal to realize pipeline leakage monitoring.

[0021] Compared with the prior art, the beneficial effects of the present invention are: the pipeline leakage fixed-point monitoring device and its monitoring method for an urban water supply system;

[0022] 1. By providing the upper fixing seat and the lower fixing seat on the pipeline, which are inserted into the positioning groove through the positioning strip and cooperate with the use of the sealing ring, the upper fixing seat and the lower fixing seat form a closed space with the outer side of the pipeline, and when there is a water leakage, this space can be filled;

[0023] 2. By providing a floating plate with a downward concave arc structure, when the water fills the upper fixing seat and the lower fixing seat, the floating plate drives the telescopic rod to slide upward in the telescopic groove under force, so that the telescopic rod drives the limiting rod to move upward, and the limiting rod contacts the pressure sensor. In cooperation with the control box to collect, process and send signals, the leakage position can be monitored in time, and leakage monitoring is realized through the buoyancy of water;

[0024] 3. During the upward movement of the telescopic rod under force, the rack on its outer side contacts the first gear, drives the toothed ring to rotate in the movable groove through the second gear, the toothed ring meshes with the cam with a serrated outer side, drives the rotation of the cam, so that the cam squeezes the adjusting rod, drives the four sealing plates to move inward synchronously, seals the leakage gap of the flange, and realizes automatic sealing through the buoyancy of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic front sectional structure view of the present invention;

[0026] Figure 2 is a schematic bottom view structure view of the upper fixing seat of the present invention;

[0027] Figure 3 is a schematic top view structure view of the lower fixing seat of the present invention;

[0028] Figure 4 is a schematic side sectional structure view of the telescopic rod of the present invention;

[0029] Figure 5 is the present invention Figure 4 magnified structure view at A in;

[0030] Figure 6 is a schematic side sectional structure view of the adjusting rod of the present invention.

[0031] In the figure: 1. Upper fixing seat; 11. Lower fixing seat; 12. Pipeline; 13. Flange; 14. Positioning strip; 15. Positioning groove; 16. Sealing ring; 17. Control box; 2. Telescopic groove; 21. Telescopic rod; 211. Rack; 212. First gear; 213. Second gear; 22. Floating plate; 23. Limiting rod; 24. Limiting groove; 25. First spring; 26. Pressure sensor; 3. Movable groove; 31. Toothed ring; 32. Adjusting groove; 33. Cam; 34. Second spring; 35. Adjusting rod; 36. Sealing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1-6, the present invention provides a technical solution: a pipeline leakage fixed-point monitoring device for an urban water supply system, including an upper fixing seat 1, a lower fixing seat 11, a pipeline 12, a flange 13, a positioning strip 14, a positioning groove 15, a sealing ring 16, a control box 17, a telescopic groove 2, a telescopic rod 21, a rack 211, a first gear 212, a second gear 213, a floating plate 22, a limiting rod 23, a limiting groove 24, a first spring 25, a pressure sensor 26, a moving groove 3, a toothed ring 31, an adjusting groove 32, a cam 33, a second spring 34, an adjusting rod 35 and a plugging plate 36;

[0034] The upper fixing seat 1 is provided with a lower fixing seat 11 below it. The upper fixing seat 1 and the lower fixing seat 11 are in a hoop shape and are fixedly sleeved on the pipeline 12 through bolt connection. The middle parts of the upper fixing seat 1 and the lower fixing seat 11 are located outside the flange 13 on the pipeline 12. A positioning strip 14 is welded to the bottom of the upper fixing seat 1, and the positioning strip 14 is located in the positioning groove 15, and the positioning groove 15 is opened on the top of the lower fixing seat 11. Sealing rings 16 are installed at the ends of the upper fixing seat 1 and the lower fixing seat 11, and a control box 17 is bolted to the side of the protruding part at the top of the upper fixing seat 1;

[0035] The telescopic groove 2 is opened on the inner wall of the upper fixing seat 1. A telescopic rod 21 is placed in the telescopic groove 2. One end of the telescopic rod 21 penetrates through the telescopic groove 2 and is fixed with a floating plate 22. A limiting rod 23 is welded to the side of the telescopic rod 21, and the limiting rod 23 is located in the limiting groove 24, and the limiting groove 24 is opened on the side wall of the telescopic groove 2. A first spring 25 is fixed between the bottom of the limiting rod 23 and the limiting groove 24. At the same time, a pressure sensor 26 is installed at the top of the limiting groove 24;

[0036] The moving groove 3 runs through the upper fixing seat 1 and the lower fixing seat 11. A toothed ring 31 is placed in the moving groove 3. An adjusting groove 32 runs through between the moving groove 3 and the inside of the upper fixing seat 1 and the lower fixing seat 11. A cam 33 is axially connected in the adjusting groove 32. One end of the adjusting groove 32 is connected with an adjusting rod 35 through a second spring 34. One end of the adjusting rod 35 penetrates through the adjusting groove 32 and is welded with a plugging plate 36 inside the upper fixing seat 1 and the lower fixing seat 11, and the plugging plate 36 is located outside the flange 13.

[0037] The positioning strip 14 and the positioning groove 15 are engaged with each other, and two positioning strips 14 are symmetrically arranged at the bottom of the upper fixing seat 1;

[0038] As Figures 1-3 In, the upper fixing seat 1 and the lower fixing seat 11 are sleeved on the pipeline 12 through fasteners, so that the positioning strip 14 is snapped into the positioning groove 15. With the use of the sealing ring 16, a closed space is formed between the upper fixing seat 1 and the lower fixing seat 11 and the outside of the pipeline 12, which is convenient for storing the leaked water;

[0039] A rack 211 is fixed on the telescopic rod 21, and a first gear 212 and a second gear 213 are arranged outside the telescopic rod 21. Both the first gear 212 and the second gear 213 are embedded and shaft-connected inside the upper fixing seat 1. The racks 211 are evenly distributed outside the telescopic rod 21, and the rack 211 meshes with the first gear 212. The first gear 212 meshes with the second gear 213, and the second gear 213 meshes with the tooth ring 31. The outer side of the cam 33 is designed with a serrated structure, and the cam 33 meshes with the tooth ring 31. The adjusting rod 35 slides in the adjusting groove 32 by means of the second spring 34. One end of the adjusting rod 35, the blocking plate 36, is designed with an arc-shaped structure. Two blocking plates 36 are symmetrically arranged in both the upper fixing seat 1 and the lower fixing seat 11. The four blocking plates 36 form an annular structure that fits against the outer side of the flange 13.

[0040] As Figure 1 、 Figure 4 and Figure 6 shown in

[0041] When the telescopic rod 21 is forced to slide upward in the telescopic groove 2, the rack 211 outside the telescopic rod 21 meshes with the first gear 212 to drive it to rotate. The first gear 212 and the second gear 213 drive the tooth ring 31 to rotate in the movable groove 3. The tooth ring 31 meshes with the outer side of the cam 33 to drive it to rotate in the adjusting groove 32. The cam 33 contacts the top of the adjusting rod 35, driving the adjusting rod 35 and the blocking plate 36 to move. The four blocking plates 36 contact the outer side of the flange 13 to block it. At the same time, with the use of the second spring 34, when the cam 33 rotates back to its original position, the adjusting rod 35 can slide back to its original position for convenient use next time.

[0042] As Figure 1 and Figures 4-5 shown in

[0043] When a leakage occurs, the water level in the upper fixing seat 1 and the lower fixing seat 11 continuously rises. The floating plate 22 is forced to move upward, driving the telescopic rod 21 to move upward in the telescopic groove 2. The telescopic rod 21 drives the limiting rod 23 to slide upward in the limiting groove 24, so that the limiting rod 23 contacts the pressure sensor 26. The pressure sensor 26 transmits the signal to the control box 17. The electrical components in the control box 17 collect, analyze and transmit the signal to achieve fixed-point monitoring of the leakage. At the same time, with the use of the first spring 25, when the leakage problem is solved, each component can return to its original position for convenient use next time.Another technical solution provided by the present invention is to provide a monitoring method for a pipeline leakage fixed-point monitoring device for an urban water supply system, including the following steps:

[0044] The first step: First, sleeved the upper fixing seat 1 and the lower fixing seat 11 at the interface of the pipeline 12, and make the protruding positions of the upper fixing seat 1 and the lower fixing seat 11 correspond to the flange 13, so that the positioning strip 14 is snapped into the positioning groove 15, and cooperate with the sealing ring 16 to realize the sealing between the upper fixing seat 1 and the lower fixing seat 11 and the pipeline 12;

[0045] The second step: When there is a leakage at the flange 13 connection of the pipeline 12, water enters the inside of the upper fixing seat 1 and the lower fixing seat 11. As the water level rises, it drives the floating plate 22 to float, and then drives the telescopic rod 21 to slide upward in the telescopic groove 2;

[0046] The third step: The telescopic rod 21 drives the limiting rod 23 to slide upward in the limiting groove 24 under force, so that the top of the limiting rod 23 contacts the pressure sensor 26. The pressure sensor 26 transmits the signal to the control box 17, and the control box 17 receives, processes and transmits the signal to realize pipeline leakage monitoring.

[0047] Working principle: When using the pipeline leakage fixed-point monitoring device and its monitoring method for the urban water supply system, as Figures 1-6 shown in the figure, first, the upper fixing seat 1 and the lower fixing seat 11 are sleeved on the interface of the pipeline 12 with the flange 13 through fasteners. When a leakage occurs, the water level in the upper fixing seat 1 and the lower fixing seat 11 rises, drives the telescopic rod 21 and the limiting rod 23 to rise through the floating plate 22, the limiting rod 23 contacts the pressure sensor 26, and cooperates with the electrical components in the control box 17 to transmit signals to realize fixed-point leakage monitoring;

[0048] Then, when the telescopic rod 21 rises, it drives the toothed ring 31 to rotate through the first gear 212 and the second gear 213, and the toothed ring 31 drives the cam 33 to rotate, squeezes the adjusting rod 35, so that the sealing plate 36 approaches the flange 13, and seals the flange 13 connection through the four sealing plates 36.

[0049] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pipeline leakage fixed-point monitoring device for urban water supply systems, characterized in that: It includes: An upper fixing seat, with a lower fixing seat arranged below it. The upper fixing seat and the lower fixing seat are in a hoop shape and are fixedly sleeved on the pipeline through bolt connections. The middle parts of the upper fixing seat and the lower fixing seat are located outside the upper flange of the pipeline. A positioning strip is welded to the bottom of the upper fixing seat, and the positioning strip is located in a positioning groove, and the positioning groove is opened on the top of the lower fixing seat. Sealing rings are installed at the ends of both the upper fixing seat and the lower fixing seat, and a control box is bolt-fixed to the side of the raised part at the top of the upper fixing seat; A telescopic groove is opened on the inner wall of the upper fixing seat. A telescopic rod is placed in the telescopic groove, and one end of the telescopic rod penetrates through the telescopic groove and is fixed with a floating plate. A limiting rod is welded to the side of the telescopic rod, and the limiting rod is located in a limiting groove, and the limiting groove is opened on the side wall of the telescopic groove. A first spring is fixed between the bottom of the limiting rod and the limiting groove. At the same time, a pressure sensor is installed at the top of the limiting groove; A rack is fixed on the telescopic rod, and a first gear and a second gear are arranged outside the telescopic rod. Both the first gear and the second gear are embedded and shaft-connected inside the upper fixing seat; The racks are evenly distributed outside the telescopic rod. The rack meshes with the first gear, the first gear meshes with the second gear, and the second gear meshes with a toothed ring; An activity groove runs through the inside of the upper fixing seat and the lower fixing seat. A toothed ring is placed in the activity groove. An adjustment groove runs through between the activity groove and the inside of the upper fixing seat and the lower fixing seat. A cam is shaft-connected in the adjustment groove. One end of the adjustment groove is connected to an adjustment rod through a second spring. One end of the adjustment rod penetrates through the adjustment groove and is welded with a sealing plate inside the upper fixing seat and the lower fixing seat, and the sealing plate is located outside the flange; The outer side of the cam is designed with a serrated structure, and the cam meshes with the toothed ring; The adjustment rod slides in the adjustment groove in a fitting manner through the second spring. The sealing plate at one end of the adjustment rod is designed with an arc-shaped structure. The sealing plates are symmetrically arranged in two on both the upper fixing seat and the lower fixing seat. And the four sealing plates form a circular ring structure that fits against the outside of the flange.

2. The pipeline leakage fixed-point monitoring device for urban water supply systems according to claim 1, characterized in that: The positioning strip and the positioning groove are engaged with each other, and two positioning strips are symmetrically arranged at the bottom of the upper fixing seat.

3. The pipeline leakage fixed-point monitoring device for urban water supply systems according to claim 1, characterized in that: The floating plate is designed with a downwardly concave arc-shaped structure, and two floating plates are symmetrically arranged with respect to the sealing plate.

4. The pipeline leakage fixed-point monitoring device for urban water supply systems according to claim 1, characterized in that: The limiting rod and the telescopic rod slide in the limiting groove and the telescopic groove in a fitting manner respectively, and the limiting rod forms an elastic sliding structure in the limiting groove through the first spring.

5. The monitoring method of the pipeline leakage fixed-point monitoring device for urban water supply systems according to claim 1, characterized in that: It includes the following steps: S1: First, sleeved the upper fixing seat and the lower fixing seat at the interface of the pipeline, and make the raised positions of the upper fixing seat and the lower fixing seat correspond to the flange, so that the positioning strip is snapped into the positioning groove, and cooperate with the sealing ring to achieve the sealing between the upper fixing seat, the lower fixing seat and the pipeline; S2: When there is a leakage at the flange connection of the pipeline, water enters the inside of the upper fixing seat and the lower fixing seat. As the water level rises, it drives the floating plate to float, and then drives the telescopic rod to slide upward in the telescopic groove; S3: The telescopic rod drives the limiting rod to slide upward in the limiting groove under force, so that the top of the limiting rod contacts the pressure sensor. The pressure sensor transmits the signal to the control box, and the control box receives, processes and transmits the signal to realize pipeline leakage monitoring.

Images