Water supply network leakage monitoring device and method

Abstract

The invention relates to the technical field of pipeline leakage monitoring, in particular to a water supply pipe network leakage monitoring device and method.The water supply pipe network leakage monitoring device comprises a sealing supporting mechanism which is matched with water supply pipe flanges in a sleeved mode, arranged between the two water supply pipe flanges and used for sealing connection between the two water supply pipe flanges; the sealing supporting mechanism comprises a sealing lantern ring matched with a water supply pipe flange in a sleeved mode and further comprises a first-stage sealing assembly arranged at the middle end of the inner wall of the sealing lantern ring and second-stage sealing assemblies arranged on the two sides of the first-stage sealing assembly, and a gap exists between the first-stage sealing assembly and the second-stage sealing assemblies. According to the leakage monitoring device for the water supply pipe network, the problems that an existing leakage monitoring device for the water supply pipe network cannot effectively monitor and timely find tiny leakage, the leakage problem is enlarged, and water resources are wasted are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline leakage monitoring, and more specifically, to a water supply network leakage monitoring device and method. Background Art

[0002] In the water supply network system, leakage has always been a difficult problem that needs to be solved urgently. The traditional water supply network leakage monitoring method mainly relies on manual inspection and simple pressure monitoring equipment. These methods have many shortcomings. Manual inspection is not only inefficient, but also difficult to detect small leakage points in time, which often leads to the expansion of leakage problems, resulting in waste of water resources and a decrease in water supply pressure. Although the existing pressure monitoring equipment can reflect the pressure changes of the network to a certain extent, its monitoring accuracy is limited. It is mainly manifested in that when there is a slight leakage, the pressure change in the pipe is small, and the pressure monitoring equipment cannot monitor the leakage information, so that the leakage cannot be repaired in time, which in turn causes a waste of water resources.

[0003] In order to solve the above problems, a water supply network leakage monitoring device and method are proposed. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In response to the problems existing in the prior art, the present invention provides a water supply network leakage monitoring device and method to solve the problem mentioned in the background technology that the existing water supply network leakage monitoring equipment cannot effectively monitor and timely detect small leakages, resulting in the expansion of leakage problems and causing waste of water resources.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a water supply network leakage monitoring device, comprising a sealing support mechanism matched with a water supply pipe flange sleeve, which is arranged between two water supply pipe flanges and used for sealing the connection between the two water supply pipe flanges;

[0008] The sealing support mechanism includes a sealing collar matched with the water supply pipe flange sleeve, a primary sealing component arranged at the middle end of the inner wall of the sealing collar, and secondary sealing components arranged on both sides of the primary sealing component;

[0009] There is a distance between the primary sealing component and the secondary sealing component, and the primary sealing component and the secondary sealing component are squeezed and sealed by the water supply pipe flange. After the primary sealing component, the secondary sealing component, the sealing collar and the water supply pipe flange are installed, a water seepage accumulation chamber is formed, and a hydraulic cavity communicating with the water seepage accumulation chamber is opened on the sealing collar, and a water seepage trigger mechanism is arranged in the hydraulic cavity;

[0010] The sealing support mechanism is provided with a pressing mechanism and a water pressure monitoring mechanism, and the water seepage triggering mechanism is provided between the pressing mechanism and the water pressure monitoring mechanism.

[0011] The present invention is further configured such that the primary sealing assembly comprises a resisting retaining ring arranged at the middle end of the inner wall of the sealing sleeve ring, and a No. 1 sealing rubber pad arranged at both sides of the resisting retaining ring;

[0012] The abutment retaining ring and the No. 1 sealing gasket are both provided with through holes corresponding to the bolt holes on the water supply pipe flange, and the diameter of the through holes on the No. 1 sealing gasket is smaller than the bolt holes on the water supply pipe flange.

[0013] The present invention is further configured such that the secondary sealing assembly comprises a clamping retaining ring arranged on the inner wall of the sealing sleeve ring and located on both sides of the resisting retaining ring, and a second sealing rubber pad arranged on a side of the clamping retaining ring away from the resisting retaining ring;

[0014] The thickness of the No. 1 sealing rubber pad is greater than the thickness of the No. 2 sealing rubber pad.

[0015] The present invention is further configured such that an active cavity is formed through the sealing collar and the abutting retaining ring, and a water pressure monitoring mechanism is threadedly mounted on the upper end of the active cavity;

[0016] The movable chamber and the water seepage accumulation chamber are connected through a hydraulic cavity, and the water seepage trigger mechanism is radially arranged in the movable chamber below the water pressure monitoring mechanism, the pressing mechanism is movably arranged at the lower end of the movable chamber, and the pressing mechanism resists the water seepage trigger mechanism under the action of water pressure.

[0017] The present invention is further configured such that the hydraulic cavity is arranged in a T-shape, and the water seepage triggering mechanism is movably arranged in a "first" section of the hydraulic cavity.

[0018] The present invention is further configured such that the water seepage trigger mechanism includes a transition block arranged below the water pressure monitoring mechanism, and the transition block is an equilateral triangular prism, one edge of the triangular prism of the transition block corresponds to the bottom end of the water pressure monitoring mechanism, and both ends of the transition block are provided with limit columns that are movably matched with a section of the hydraulic cavity;

[0019] A centering spring is arranged in the "one" section of the hydraulic cavity, and the centering spring abuts against and pushes the limiting column.

[0020] The present invention is further configured such that the pressing mechanism comprises a piston movably arranged at the lower end of the movable chamber, and a push pin arranged at the top end of the piston;

[0021] A stopper is arranged in the movable cavity, and an ejector hole which is matched with the ejector movement is opened on the stopper.

[0022] The present invention is further configured such that an anti-slip ring is provided at one end of the ejector pin that passes through the ejector pin hole and is located above the stopper, and the diameter of the anti-slip ring is larger than the ejector pin hole.

[0023] The present invention is further configured such that the water pressure monitoring mechanism includes a pressure sensor threadedly connected to the upper end of the active chamber, and a signal transmission module electrically connected to the pressure sensor.

[0024] The present invention also provides the following technical solution: a water supply network leakage monitoring method, comprising the water supply network leakage monitoring device, and,

[0025] S1. Install the sealing collar between two water supply pipe flanges to be connected, and lock the two water supply pipe flanges with bolts and nuts so that the primary sealing component and the secondary sealing component are clamped to form a water seepage accumulation chamber;

[0026] S2. Before water is turned on, ensure that the water pressure monitoring mechanism is in the initial state, the water seepage trigger mechanism is located below the water pressure monitoring mechanism and the two are in close contact, and the top pressure mechanism contacts the water seepage trigger mechanism under the action of water pressure;

[0027] S3. After water is passed, the water pressure monitoring mechanism monitors the water pressure in the pipe in real time and transmits the water pressure signal to the monitoring console;

[0028] S4. When water seepage occurs in the primary sealing component, the water seeps into the water accumulation chamber, pushing the water seepage trigger mechanism to move, causing the water seepage trigger mechanism and the top pressure mechanism to be misaligned, causing the water pressure monitored by the water pressure monitoring mechanism to drop suddenly to 0;

[0029] S5. The water pressure monitoring mechanism transmits the signal of sudden water pressure drop to the monitoring console, and the monitoring console issues a leakage alarm to prompt the maintenance personnel to perform maintenance.

[0030] (III) Beneficial effects

[0031] Compared with the prior art, the present invention provides a water supply network leakage monitoring device and method, which has the following beneficial effects:

[0032] 1. The present invention forms a double sealing structure by setting a primary sealing component and a secondary sealing component. The primary sealing component serves as a main sealing component and can effectively prevent water leakage, while the secondary sealing component serves as a backup seal. When water seepage occurs in the primary sealing component, the leaked water will be accumulated in the water seepage accumulation chamber and will not leak directly to the outside, thereby reducing the waste of water resources. This double sealing design greatly improves the sealing performance of the device and effectively reduces the risk of leakage.

[0033] 2. In the present invention, when water seepage occurs in the primary sealing assembly, as the water pressure of the seepage increases, the water seepage trigger mechanism is pushed to move, causing the water pressure monitored by the water pressure monitoring mechanism to drop suddenly to 0, thereby issuing a leakage alarm in time, allowing maintenance personnel to locate the leakage point in time and deal with it, avoiding the situation where minor leakage problems are difficult to detect and cause waste of water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the water supply network leakage monitoring device.

[0035] Figure 2 This is a schematic diagram of the status of the water supply network leakage monitoring device being installed and connected to the water supply pipe.

[0036] Figure 3 It is a schematic diagram of the cross-sectional structure at the center line of the sealing ring in the water supply network leakage monitoring device.

[0037] Figure 4 for Figure 3 Enlarged structural diagram at A in the middle.

[0038] Figure 5 It is a schematic diagram of the explosion structure between the top pressure mechanism and the active cavity in the water supply network leakage monitoring device.

[0039] Figure 6 It is a schematic diagram of the structure of the position of the limit column in the hydraulic cavity under the action of the centering spring.

[0040] In the figure: 1. sealing support mechanism; 101. sealing ring; 102. hydraulic cavity; 103. movable cavity; 104. block; 105. ejector hole; 2. primary sealing assembly; 201. abutment baffle ring; 202. No. 1 sealing pad; 203. through hole; 3. secondary sealing assembly; 301. clamping baffle ring; 302. No. 2 sealing pad; 4. water seepage accumulation chamber; 5. water seepage triggering mechanism; 501. transition block; 502. limiting column; 503. centering spring; 6. pressing mechanism; 601. piston; 602. ejector; 603. anti-slip ring; 7. water pressure monitoring mechanism; 701. pressure sensor; 702. signal transmission module. DETAILED DESCRIPTION

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0042] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0043] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0044] For examples, see Figure 1 - Figure 6 , a water supply network leakage monitoring device and method, including a sealing support mechanism 1 that matches with the water supply pipe flange sleeve, which is arranged between two water supply pipe flanges and is used for sealing the connection between the two water supply pipe flanges;

[0045] The sealing support mechanism 1 includes a sealing collar 101 that matches with the flange sleeve of the water supply pipe, and also includes a primary sealing component 2 arranged at the middle end of the inner wall of the sealing collar 101, and secondary sealing components 3 arranged on both sides of the primary sealing component 2;

[0046] There is a distance between the primary sealing component 2 and the secondary sealing component 3, and both the primary sealing component 2 and the secondary sealing component 3 are squeezed and sealed by the water supply pipe flange. After the primary sealing component 2, the secondary sealing component 3, the sealing collar 101 and the water supply pipe flange are installed, a water seepage accumulation chamber 4 is formed, and a hydraulic cavity 102 connected to the water seepage accumulation chamber 4 is opened on the sealing collar 101, and a water seepage trigger mechanism 5 is arranged in the hydraulic cavity 102;

[0047] The sealing support mechanism 1 is provided with a pressing mechanism 6 and a water pressure monitoring mechanism 7 , and the water seepage triggering mechanism 5 is provided between the pressing mechanism 6 and the water pressure monitoring mechanism 7 .

[0048] Two water supply pipes to be connected have their flanges correspondingly inserted into the sealing collar 101, wherein the sealing collar 101 and the water supply pipe flanges are matched and socketed. After the two water supply pipe flanges to be connected are inserted into the sealing collar 101, bolts are used to penetrate the mounting hole of one of the water supply pipe flanges in sequence, then penetrate the primary sealing component 2, and finally penetrate the mounting hole of the other water supply pipe flange, and then lock them by matching the threads of the bolts and nuts, so that the flanges of the two water supply pipes clamp the primary sealing component 2 and the secondary sealing component 3, thereby realizing the sealed connection of the two water supply pipes. After the connected water supply pipes are passed through water, a certain value of water pressure is generated in the pipeline, and its water pressure is controlled within a certain range, which is monitored by the water pressure monitoring mechanism 7.

[0049] It should be noted that, in the initial state, the water seepage trigger mechanism 5 is located below the water pressure monitoring mechanism 7, and the two are in close contact. Under the action of water pressure, the top pressure mechanism 6 resists the water seepage trigger mechanism 5, thereby applying water pressure to the water pressure monitoring mechanism 7. Specifically, when the water pressure in the pipe passes through the sealing support mechanism 1, the water pressure pushes the top pressure mechanism 6 to move toward the water pressure monitoring mechanism 7, thereby pressing on the water seepage trigger mechanism 5. The force of water pressure is applied to the water pressure monitoring mechanism 7 through the water seepage trigger mechanism 5, so that the water pressure monitoring mechanism 7 can monitor the water pressure in the pipe in real time, thereby determining whether there is leakage in the water supply pipe.

[0050] Furthermore, since there is a distance between the primary sealing component 2 and the secondary sealing component 3, the primary sealing component 2 at this time serves as the main seal for connecting the two water supply pipes, and the secondary sealing component 3 is a backup seal, that is, when water seepage occurs in the primary sealing component 2, the leaked water will enter the water seepage accumulation chamber 4 between the primary sealing component 2 and the secondary sealing component 3, and will not leak to the outside, resulting in endless waste of water resources. At this time, the leaked water serves as a power source for the water seepage trigger mechanism 5. Specifically, as the amount of water seepage increases, the water pressure in the water seepage accumulation chamber 4 increases, thereby entering the hydraulic cavity 102, and then pushing the water seepage trigger mechanism 5 to move, thereby causing the water seepage trigger mechanism 5 and the top pressure mechanism 6 to be misaligned, thereby making it impossible for the top pressure mechanism 6 to apply water pressure to the water pressure monitoring mechanism 7 through the water seepage trigger mechanism 5. Therefore, the water pressure of the water pressure monitoring mechanism 7 will drop suddenly from the normal water pressure to 0. At this time, the water pressure monitoring mechanism 7 transmits the signal of the water pressure drop to the monitoring console to indicate that there is a leakage at the joint and maintenance is required. The primary sealing assembly 2 comprises a resisting retaining ring 201 disposed at the middle end of the inner wall of the sealing sleeve ring 101, and a first sealing rubber pad 202 disposed on both sides of the resisting retaining ring 201;

[0051] The abutment ring 201 and the No. 1 sealing gasket 202 are both provided with through holes 203 corresponding to the bolt holes on the water supply pipe flange, and the diameter of the through holes 203 on the No. 1 sealing gasket 202 is smaller than the bolt holes on the water supply pipe flange.

[0052] The primary sealing assembly 2 is the core sealing component in the water supply network leakage monitoring device. Its main function is to achieve a sealed connection between the two water supply pipe flanges to prevent water leakage. The abutment ring 201 is arranged in the middle section of the inner wall of the sealing ring 101 to play a supporting and positioning role. It is made of high-strength metal material to ensure that it can maintain a stable shape and position under the action of water pressure. The abutment ring 201 and the sealing ring 101 are integrally formed, and the thickness and width of the abutment ring 201 are precisely calculated to meet the needs of water supply networks with different pipe diameters and pressure levels.

[0053] The No. 1 sealing rubber pad 202 is arranged on both sides of the abutment ring 201, and is made of a highly elastic, high-pressure resistant rubber material, such as nitrile rubber or EPDM rubber. The thickness and hardness of the No. 1 sealing rubber pad 202 are optimized to ensure that the small gap between the water supply pipe flanges can be effectively filled under the action of water pressure to achieve a good sealing effect. The outer surface of the No. 1 sealing rubber pad 202 has a certain degree of roughness to increase the friction with the water supply pipe flange and prevent sliding under the action of water pressure.

[0054] Among them, the diameter of the through hole 203 on the No. 1 sealing rubber pad 202 is smaller than the diameter of the bolt hole on the water supply pipe flange. The purpose of this design is that when the bolt passes through, the No. 1 sealing rubber pad 202 can fit tightly around the bolt to further improve the sealing effect. At the same time, the edge of the through hole 203 is chamfered to reduce wear on the bolt and extend the service life of the bolt. The secondary sealing assembly 3 includes a clamping retaining ring 301 arranged on the inner wall of the sealing ring 101 and located on both sides of the resisting retaining ring 201, and a No. 2 sealing rubber pad 302 arranged on the side of the clamping retaining ring 301 away from the resisting retaining ring 201;

[0055] The thickness of the first sealing pad 202 is greater than the thickness of the second sealing pad 302 .

[0056] The secondary sealing component 3 is a spare sealing component in the water supply network leakage monitoring device. Its main function is to provide additional sealing protection to prevent water leakage when water seepage occurs in the primary sealing component 2.

[0057] The clamping retaining ring 301 is symmetrically arranged on both sides of the abutting retaining ring 201, and the symmetrically arranged clamping retaining ring 301 and the inner wall of the sealing ring 101 are integrally formed, and are used to resist and support the No. 2 sealing rubber pad 302, so that when the water supply pipe flange is connected, it can squeeze the No. 2 sealing rubber pad 302 to produce deformation, thereby realizing the backup seal of the water supply pipe flange connection.

[0058] Among them, there is a certain distance between the clamping baffle ring 301 and the abutment baffle ring 201 which are symmetrically arranged on both sides of the abutment baffle ring 201, and the inner diameters of the clamping baffle ring 301 and the No. 2 sealing rubber pad 302 are larger than the outer diameter of the No. 1 sealing rubber pad 202. Therefore, after the water supply pipe flange is connected, the flange squeezes the No. 1 sealing rubber pad 202 and the No. 2 sealing rubber pad 302, so that the No. 1 sealing rubber pad 202 and the No. 2 sealing rubber pad 302 are flush with one side of the flange, and the gap between the No. 1 sealing rubber pad 202 and the No. 2 sealing rubber pad 302 and the gap between the clamping baffle ring 301 and the abutment baffle ring 201 constitute a water seepage accumulation chamber 4.

[0059] Specifically, the No. 1 sealing pad 202 is the main seal. When water seepage occurs in the No. 1 sealing pad 202, the seeped water will enter the water seepage accumulation chamber 4. However, since the No. 2 sealing pad 302 is always in a standby state, the water entering the water seepage accumulation chamber 4 is still sealed and does not leak out. Therefore, before the abnormal alarm of water seepage occurs, excessive water resources will not be wasted.

[0060] Among them, in the initial state, the thickness of the No. 1 sealing pad 202 is greater than the thickness of the No. 2 sealing pad 302, specifically, the thickness of the No. 1 sealing pad 202 is greater than the distance from the side of the abutting retaining ring 201 to the side of the No. 2 sealing pad 302 away from the pressing retaining ring 301, so that when the water supply pipe flange is pressed against the No. 1 sealing pad 202 and the No. 2 sealing pad 302, and the No. 1 sealing pad 202 and the No. 2 sealing pad 302 are flush with one side of the flange, the No. 1 sealing pad 202 and the No. 2 sealing pad 302 can both have a higher sealing effect. The sealing ring 101 and the abutting retaining ring 201 are provided with an active cavity 103, and the upper end of the active cavity 103 is threadedly installed with a water pressure monitoring mechanism 7;

[0061] The active chamber 103 and the water seepage accumulation chamber 4 are connected through the hydraulic cavity 102, and the water seepage trigger mechanism 5 is radially arranged in the active chamber 103 below the water pressure monitoring mechanism 7, and the pressing mechanism 6 is movably arranged at the lower end of the active chamber 103, and the pressing mechanism 6 resists the water seepage trigger mechanism 5 under the action of water pressure.

[0062] The hydraulic cavity 102 is arranged in a T-shape, and the water seepage trigger mechanism 5 is movably arranged in a “first” section of the hydraulic cavity 102 .

[0063] The water seepage trigger mechanism 5 includes a transition block 501 disposed below the water pressure monitoring mechanism 7, and the transition block 501 is an equilateral triangular prism, one edge of the triangular prism of the transition block 501 corresponds to the bottom of the water pressure monitoring mechanism 7, and both ends of the transition block 501 are provided with a limit column 502 that matches the "one" section of the hydraulic cavity 102;

[0064] A centering spring 503 is disposed in the first section of the hydraulic cavity 102 , and the centering spring 503 abuts against and pushes the limiting column 502 .

[0065] In the initial state, under the action of the centering spring 503, the transition block 501 is located at the axial center of the active chamber 103, and under the action of water pressure, the top of the pressing mechanism 6 contacts the bottom surface of the triangular prism of the transition block 501, thereby acting on the bottom of the water pressure monitoring mechanism 7, so that the water pressure monitoring mechanism 7 can realize real-time detection.

[0066] Further, two groups of hydraulic channels 102 are symmetrically arranged and respectively communicate with the water seepage accumulation chambers 4 on both sides of the contact blocking ring 201. When any one of the first sealing rubber pads 202 on both sides leaks, the limiting column 502 can be pushed to move axially, so that the triangular column bottom surface of the transition block 501 disengages from the top of the pressing mechanism 6, and thus the top of the pressing mechanism 6 corresponds to the circumferential side wall of the limiting column 502.

[0067] It should be noted that under the action of the centering spring 503, the end of the limiting column 502 does not exceed the "|" section of the hydraulic channel 102. Therefore, after the water seepage in the water seepage accumulation chamber 4 enters the hydraulic channel 102, it can push the limiting column 502. The limiting column 502 and the hydraulic channel 102 are in a piston-type matching. The pressing mechanism 6 includes a piston 601 movably arranged at the lower end of the movable chamber 103 and a thimble 602 arranged at the top of the piston 601.

[0068] A blocking block 104 is arranged in the movable chamber 103, and a thimble hole 105 that is movably matched with the thimble 602 is opened on the blocking block 104.

[0069] In the initial state, when the water pressure in the water supply pipe pushes the piston 601 to drive the thimble 602 to contact the triangular column bottom surface of the transition block 501, there is a certain pressing gap between the piston 601 and the bottom end of the blocking block 104, and this gap is set as X. There is also a certain distance between the outer wall of the limiting column 502 and the triangular column bottom surface, and this distance is set as Y. It should be noted that Y > X.

[0070] After the first sealing rubber pad 202 leaks water, the accumulated amount of leaked water pushes the limiting column 502 through the hydraulic channel 102, so that the triangular column bottom surface of the transition block 501 disengages from the top of the thimble 602, and thus the top of the pressing mechanism 6 corresponds to the circumferential side wall of the limiting column 502. At this time, under the action of the water pressure, without the contact of the triangular column bottom surface of the transition block 501, the piston 601 will drive the thimble 602 to move upward. However, because Y > X, the end of the thimble 602 away from the piston 601 cannot contact the limiting column 502, so the force of the water pressure cannot be transmitted to the water pressure monitoring mechanism 7, and thus the monitoring value of the water pressure monitoring mechanism 7 drops suddenly to 0, and then an abnormal water leakage alarm signal is sent out.

[0071] Further, the top end of the thimble 602 is provided with an arc surface. When the equipment is disassembled and maintained, without the action of the water pressure in the water supply pipe and the water pressure in the water seepage accumulation chamber 4, the centering spring 503 will push the transition block 501 to reset, and when it resets, it will push the arc surface at the top end of the thimble 602. An anti-drop ring 603 is arranged at the end of the thimble 602 passing through the thimble hole 105 above the blocking block 104, and the diameter of the anti-drop ring 603 is larger than that of the thimble hole 105.

[0072] By providing the anti-drop ring 603 , the pressing mechanism 6 is fixed in the active cavity 103 , thereby preventing it from falling during maintenance.

[0073] The water pressure monitoring mechanism 7 includes a pressure sensor 701 threadedly connected to the upper end of the active chamber 103 , and a signal transmission module 702 electrically connected to the pressure sensor 701 .

[0074] The water pressure generated by the ejector pin 602 squeezing the transition block 501 is received by the pressure sensor 701 , and the water pressure is transmitted to the monitoring center through the signal transmission module 702 .

[0075] S1. Install the sealing ring 101 between two water supply pipe flanges to be connected, and lock the two water supply pipe flanges with bolts and nuts so that the primary sealing component 2 and the secondary sealing component 3 are clamped to form a water seepage accumulation chamber 4.

[0076] S2. Before water is passed, ensure that the water pressure monitoring mechanism 7 is in the initial state, the water seepage triggering mechanism 5 is located below the water pressure monitoring mechanism 7 and the two are in close contact, and the pressing mechanism 6 resists the water seepage triggering mechanism 5 under the action of water pressure.

[0077] S3. After water is passed through, the water pressure monitoring mechanism 7 monitors the water pressure in the pipe in real time and transmits the water pressure signal to the monitoring console.

[0078] S4. When water seepage occurs in the primary sealing assembly 2, the water seeps into the water accumulation chamber 4, pushing the water seepage trigger mechanism 5 to move, causing the water seepage trigger mechanism 5 and the top pressure mechanism 6 to be misaligned, causing the water pressure monitored by the water pressure monitoring mechanism 7 to drop suddenly to 0.

[0079] S5. The water pressure monitoring mechanism 7 transmits the signal of sudden water pressure drop to the monitoring console, and the monitoring console issues a leakage alarm to prompt the maintenance personnel to perform maintenance.

[0080] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, welding is preferred for all fixed connections. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and deformations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A water supply network leakage monitoring device, characterized in that: It comprises a sealing support mechanism (1) which is sleeve-matched with a water supply pipe flange and is arranged between two water supply pipe flanges to seal the connection between the two water supply pipe flanges; The sealing support mechanism (1) comprises a sealing collar (101) that is sleeved and matched with a water supply pipe flange, and also comprises a primary sealing component (2) arranged at the middle end of the inner wall of the sealing collar (101), and secondary sealing components (3) arranged on both sides of the primary sealing component (2); There is a distance between the primary sealing component (2) and the secondary sealing component (3), and the primary sealing component (2) and the secondary sealing component (3) are squeezed and sealed by the water supply pipe flange. After the primary sealing component (2), the secondary sealing component (3), the sealing collar (101) and the water supply pipe flange are installed, a water seepage accumulation chamber (4) is formed, and a hydraulic cavity (102) communicating with the water seepage accumulation chamber (4) is opened on the sealing collar (101), and a water seepage trigger mechanism (5) is arranged in the hydraulic cavity (102); The sealing support mechanism (1) is provided with a pressing mechanism (6) and a water pressure monitoring mechanism (7), and the water seepage triggering mechanism (5) is arranged between the pressing mechanism (6) and the water pressure monitoring mechanism (7).

2. A water supply network leakage monitoring device according to claim 1, characterized in that: The primary sealing assembly (2) comprises a resisting retaining ring (201) arranged at the middle end of the inner wall of the sealing sleeve ring (101), and a first sealing rubber pad (202) arranged on both sides of the resisting retaining ring (201); The abutment ring (201) and the No. 1 sealing gasket (202) are both provided with through holes (203) corresponding to the bolt holes on the water supply pipe flange, and the diameter of the through holes (203) on the No. 1 sealing gasket (202) is smaller than the bolt holes on the water supply pipe flange.

3. A water supply network leakage monitoring device according to claim 2, characterized in that: The secondary sealing assembly (3) comprises a clamping retaining ring (301) arranged on the inner wall of the sealing sleeve ring (101) and located on both sides of the resisting retaining ring (201), and a second sealing rubber pad (302) arranged on a side of the clamping retaining ring (301) away from the resisting retaining ring (201); The thickness of the No. 1 sealing rubber pad (202) is greater than the thickness of the No. 2 sealing rubber pad (302).

4. A water supply network leakage monitoring device according to claim 3, characterized in that: The sealing collar (101) and the abutting retaining ring (201) are provided with an active cavity (103) extending therethrough, and a water pressure monitoring mechanism (7) is threadedly mounted on the upper end of the active cavity (103); The movable chamber (103) and the water seepage accumulation chamber (4) are connected via a hydraulic cavity (102), and the water seepage trigger mechanism (5) is radially arranged in the movable chamber (103) at a position below the water pressure monitoring mechanism (7), and the pressing mechanism (6) is movably arranged at the lower end of the movable chamber (103), and the pressing mechanism (6) resists the water seepage trigger mechanism (5) under the action of water pressure.

5. A water supply network leakage monitoring device according to claim 4, characterized in that: The hydraulic cavity (102) is arranged in a T-shape, and the water seepage triggering mechanism (5) is movably arranged in a "first" section of the hydraulic cavity (102).

6. A water supply network leakage monitoring device according to claim 5, characterized in that: The water seepage trigger mechanism (5) comprises a transition block (501) arranged below the water pressure monitoring mechanism (7), and the transition block (501) is an equilateral triangular prism, one edge of the triangular prism of the transition block (501) corresponds to the bottom end of the water pressure monitoring mechanism (7), and both ends of the transition block (501) are provided with limit columns (502) that movably match "one" section of the hydraulic cavity (102); A centering spring (503) is arranged in the "one" section of the hydraulic cavity (102), and the centering spring (503) abuts against and pushes the limiting column (502).

7. A water supply network leakage monitoring device according to claim 6, characterized in that: The pressing mechanism (6) comprises a piston (601) movably arranged at the lower end of the movable chamber (103), and a push pin (602) arranged at the top end of the piston (601); A stopper (104) is arranged in the movable cavity (103), and an ejector hole (105) movably matched with the ejector (602) is opened on the stopper (104).

8. A water supply network leakage monitoring device according to claim 7, characterized in that: An anti-slip ring (603) is provided at one end of the ejector pin (602) that passes through the ejector pin hole (105) and is located above the stopper (104), and the diameter of the anti-slip ring (603) is larger than the ejector pin hole (105).

9. A water supply network leakage monitoring device according to claim 8, characterized in that: The water pressure monitoring mechanism (7) comprises a pressure sensor (701) threadedly connected to the upper end of the active chamber (103), and a signal transmission module (702) electrically connected to the pressure sensor (701).

10. A method for monitoring leakage in a water supply network, characterized in that: The device comprises a water supply network leakage monitoring device as claimed in any one of claims 1 to 9, and S1. Install the sealing collar (101) between two water supply pipe flanges to be connected, and lock the two water supply pipe flanges with bolts and nuts, so that the primary sealing component (2) and the secondary sealing component (3) are clamped to form a water seepage accumulation chamber (4); S2. Before water is passed, ensure that the water pressure monitoring mechanism (7) is in the initial state, the water seepage trigger mechanism (5) is located below the water pressure monitoring mechanism (7) and the two are in close contact, and the pressing mechanism (6) contacts the water seepage trigger mechanism (5) under the action of water pressure; S3, after water is passed, the water pressure monitoring mechanism (7) monitors the water pressure in the pipe in real time and transmits the water pressure signal to the monitoring console; S4. When water seepage occurs in the primary sealing component (2), the water seeps into the water seepage accumulation chamber (4), pushing the water seepage trigger mechanism (5) to move, causing the water seepage trigger mechanism (5) and the top pressure mechanism (6) to be misaligned, causing the water pressure monitored by the water pressure monitoring mechanism (7) to drop suddenly to 0; S5. The water pressure monitoring mechanism (7) transmits the signal of sudden drop in water pressure to the monitoring console, which issues a leakage alarm to prompt maintenance personnel to carry out maintenance.

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