A water hammer protection device for water supply networks

Abstract

This utility model provides a water hammer protection device for water supply networks, comprising: a protective tank; and a sealing assembly, wherein the sealing assembly is disposed on the top of the protective tank. The water hammer protection device for water supply networks provided by this utility model, through the cooperation of the sealing assembly and buffer assembly, allows for easy replacement of the sealing ring during use. It eliminates the need to shut down the water supply line; simply lift the piston plate to the top of the sealing assembly using the buffer assembly, then rotate the handle to rotate the threaded rod, causing the two sealing plates to move towards the center and seal the through groove, thus forming a closed space within the protective tank. This effectively prevents water leakage from the network. The sealing ring can then be replaced by removing the sealing cap. The entire operation is simple and quick, avoiding interruptions to water supply service due to sealing ring replacement and preventing temporary failure of the water hammer protection function during replacement. It is particularly suitable for areas with high requirements for water supply continuity and water hammer protection safety.

Description

Technical Field

[0001] This utility model relates to the technical field of water hammer protection equipment, and in particular to a water hammer protection device for water supply networks. Background Technology

[0002] Water hammer occurs when there is a sudden power outage or when a valve is closed too quickly. Due to the inertia of the pressurized water flow, a water flow shock wave is generated, which is like a hammer striking the pipe, hence the name water hammer. The force generated by the back-and-forth water flow shock wave can sometimes be very large, thus damaging valves and water pumps. The rapid change in flow rate will cause excessively high or low pressure impacts in the pipeline. The pressure impact will cause the pipe wall to be stressed and generate noise, just like a hammer striking the pipe, which is called the "water hammer effect".

[0003] As disclosed in the prior art (CN 221034597 U), a water hammer protection device for a water supply network is provided. It features a protective barrel at the top center of a base plate, a frustum-shaped barrel at the top of the protective barrel, two pressure relief hoods containing pressure relief pipes, a connecting platform at the top of the frustum-shaped barrel, a top cover on the connecting platform, two sets of retractable limiting structures within the two cavities, two sets of release structures on the front and rear sides of the connecting platform, a piston plate inside the frustum-shaped barrel, a sealing ring on the outer wall of the piston plate, a telescopic rod at the top of the piston plate, and a top cover on the top of the telescopic rod. This invention uses two V-shaped push rods simultaneously to retract a trapezoidal block into the cavity. The top cover can be pulled out using a handle. Operation is simple and maintenance is convenient. When water hammer is severe, the piston plate is pushed into the frustum-shaped barrel to expand the impact range and mitigate the water hammer effect. The two pressure relief pipes quickly divert and reduce the pressure of the water flow, eliminating the need for continuous manual monitoring and providing real-time feedback on the generation and disappearance of the water hammer effect.

[0004] However, when this device achieves water hammer protection, the piston plate needs to be tightly fitted to the inner wall of the protective tank through the sealing ring on the outer wall to ensure an effective buffer space under water hammer impact and ensure the protection effect. However, the sealing ring is subjected to friction and pressure under the long-term impact of water flow and the reciprocating motion of the piston plate, and is very prone to wear and aging. If it is not replaced in time, it will lead to seal failure and directly affect the water hammer protection performance. When replacing the sealing ring, since the device is connected to the water supply network, the water supply line must be shut off first, otherwise it will cause water leakage in the network. This operation of interrupting the water supply to replace the sealing ring not only causes the water hammer protection function to temporarily fail (there is a gap in the network exposed to the risk of water hammer), but also causes inconvenience to users due to the interruption of water supply. It is especially unsuitable for areas with high requirements for water supply continuity and water hammer protection safety.

[0005] Therefore, it is necessary to provide a water hammer protection device for water supply networks to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a water hammer protection device for water supply networks, which solves the problem that the water supply pipeline needs to be shut down when the sealing ring is replaced in the existing water hammer protection device for water supply networks, resulting in cumbersome operation and water supply interruption.

[0007] To solve the above-mentioned technical problems, this utility model provides a water hammer protection device for water supply networks, comprising:

[0008] Protective barrel;

[0009] A sealing assembly is disposed on the top of the protective barrel. The sealing assembly includes a mounting frame, which is fixedly installed on the top of the protective barrel. A through groove is provided inside the mounting frame. A rotating handle is rotatably connected to both ends of the mounting frame. A threaded rod is fixedly installed at one end of the rotating handle. A sealing plate is threadedly connected to the outer side of the threaded rod.

[0010] A frustum-shaped barrel, which is fixedly installed on the top of the mounting frame;

[0011] A sealing cap, which is threadedly connected to the top of the outer side of the frustum-shaped barrel;

[0012] A buffer assembly is disposed on the inner side of the frustum-shaped barrel;

[0013] A piston plate is disposed on the inner side of the protective barrel, and a sealing ring is fixedly installed on the outer side of the piston plate.

[0014] Preferably, a mounting plate is fixedly installed at the bottom of the protective barrel, and water pipes are fixedly installed on both sides of the protective barrel.

[0015] Preferably, a pressure relief pipe is fixedly installed at the top of each of the two water pipes, and one end of the pressure relief pipe is fixedly installed on the side of the protective barrel.

[0016] Preferably, the buffer assembly includes a handle disposed on the top of the sealing cover, a threaded tube fixedly installed at the bottom of the handle, the threaded tube being threadedly connected to the inside of the top of the sealing cover, a movable rod being slidably connected to the inside of the bottom of the threaded tube, and a spring being fixedly installed at the top of the movable rod.

[0017] Preferably, the bottom of the movable rod is fixedly mounted on the top of the piston plate.

[0018] Preferably, a vibration sensor is fixedly installed at the bottom of the water pipe, and a pressure sensor is fixedly installed at the top of the inner side of the threaded pipe.

[0019] Preferably, the pressure sensor is located at the top of the moving rod.

[0020] Compared with related technologies, the water hammer protection device for water supply networks provided by this utility model has the following beneficial effects:

[0021] This utility model provides a water hammer protection device for water supply networks. Through the cooperation of sealing components and buffer components, when the sealing ring needs to be replaced during use, there is no need to shut down the water supply line. Simply lift the piston plate to the top of the sealing component using the buffer component, and then rotate the handle to drive the threaded rod to rotate, causing the two sealing plates to move towards the middle and seal the through groove, thus forming a closed space inside the protective tank, effectively preventing water leakage in the pipeline. Then, the sealing cover can be removed to replace the sealing ring. The entire operation process is simple and quick, avoiding interruption of water supply service due to sealing ring replacement, and also avoiding temporary failure of the water hammer protection function during replacement. It is especially suitable for areas with high requirements for water supply continuity and water hammer protection safety. Attached Figure Description

[0022] Figure 1 A schematic diagram of the structure of a first embodiment of a water hammer protection device for a water supply network provided by this utility model;

[0023] Figure 2 for Figure 1 The diagram shows a cross-sectional structure.

[0024] Figure 3 for Figure 1 The diagram shows a top view of the sealing assembly.

[0025] Figure 4 for Figure 2 The enlarged schematic diagram of part A shown below;

[0026] Figure 5 This is a schematic diagram of the second embodiment of a water hammer protection device for water supply networks provided by this utility model.

[0027] The following are the labels in the diagram: 1. Mounting plate, 2. Protective barrel, 3. Water pipe, 4. Pressure relief pipe, 5. Sealing assembly, 51. Mounting frame, 52. Through groove, 53. Rotary handle, 54. Threaded rod, 55. Sealing plate, 6. Frustum barrel, 7. Sealing cover, 8. Buffer assembly, 81. Handle, 82. Threaded pipe, 83. Spring, 84. Moving rod, 10. Piston plate, 11. Sealing ring, 12. Vibration sensor, 13. Pressure sensor. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] First Embodiment

[0030] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic diagram of the structure of a first embodiment of a water hammer protection device for a water supply network provided by this utility model; Figure 2 for Figure 1 The diagram shows a cross-sectional structure. Figure 3 for Figure 1 The diagram shows a top view of the sealing assembly. Figure 4 for Figure 2 The enlarged schematic diagram of part A is shown. A water hammer protection device for a water supply network includes: a protective tank 2;

[0031] A sealing assembly 5 is disposed on the top of the protective barrel 2. The sealing assembly 5 includes a mounting frame 51, which is fixedly installed on the top of the protective barrel 2. A through groove 52 is provided inside the mounting frame 51. A rotating handle 53 is rotatably connected to the inside of both ends of the mounting frame 51. A threaded rod 54 is fixedly installed at one end of the rotating handle 53. A sealing plate 55 is threadedly connected to the outer side of the threaded rod 54.

[0032] A frustum-shaped barrel 6 is fixedly installed on the top of the mounting frame 51;

[0033] A sealing cap 7 is threadedly connected to the top of the outer side of the frustum-shaped barrel 6;

[0034] A buffer assembly 8 is disposed on the inner side of the frustum-shaped barrel 6;

[0035] Piston plate 10 is disposed on the inner side of the protective barrel 2, and a sealing ring 11 is fixedly installed on the outer side of the piston plate 10.

[0036] Sealing rotating parts, such as O-rings or skeleton oil seals, can be installed at the rotating parts of the handle 53 and the mounting frame 51. These sealing rotating parts can fit tightly against the contact gap between the handle 53 and the mounting frame 51, which will not affect the flexible rotation of the handle 53, and can effectively prevent water or water vapor inside the protective barrel 2 from leaking through the rotating parts, further enhancing the overall sealing performance of the device.

[0037] The bottom of the protective barrel 2 is fixedly installed with an installation plate 1, and water pipes 3 are fixedly installed on both sides of the protective barrel 2.

[0038] Mounting holes are provided inside the four corners of the mounting plate 1 to facilitate the use of bolts to fix the mounting plate 1 in place.

[0039] Each of the two water pipes 3 is fixedly installed with a pressure relief pipe 4 at its top, and one end of the pressure relief pipe 4 is fixedly installed on the side of the protective barrel 2.

[0040] The buffer assembly 8 includes a handle 81, which is disposed on the top of the sealing cover 7. A threaded tube 82 is fixedly installed at the bottom of the handle 81. The threaded tube 82 is threadedly connected to the inside of the top of the sealing cover 7. A movable rod 84 is slidably connected to the inside of the bottom of the threaded tube 82. A spring 83 is fixedly installed at the top of the movable rod 84.

[0041] A sealing gasket is provided between the bottom of the handle 81 and the top of the sealing cover 7. When the protective device is in normal use, the handle 81 and the sealing cover 7 can squeeze the sealing gasket to achieve a sealing effect.

[0042] The bottom of the moving rod 84 is fixedly installed on the top of the piston plate 10.

[0043] The working principle of the water hammer protection device for water supply networks provided by this utility model is as follows:

[0044] When water hammer occurs in the water supply network, the impact of the water flow will cause the pressure inside the protective tank 2 to increase instantaneously, pushing the piston plate 10 to move upward. The piston plate 10 drives the moving rod 84 to slide upward in the threaded pipe 82. The spring 83 at the top of the moving rod 84 is compressed, and the elastic force of the spring 83 will generate a reverse buffering force on the piston plate 10, thereby mitigating the impact of water hammer. At the same time, some water flow can be diverted to the water pipe 3 through the pressure relief pipe 4, further reducing the pressure inside the protective tank 2.

[0045] When the sealing ring 11 needs to be replaced, the user first turns the handle 81, causing the threaded tube 82 to rotate, thus making the threaded tube 82 threadedly connected inside the top of the sealing cover 7, thereby moving the moving rod 84 upward until the piston plate 10 moves to the top of the sealing assembly 5. Then, the user turns the handles 53 at both ends of the mounting frame 51, causing the handles 53 to drive the two threaded rods 54 to be threadedly connected inside the two sealing plates 55, and then moves the two sealing plates 55 towards the middle, thereby sealing the through groove 52. After that, the user turns the sealing cover 7 to remove the sealing cover 7 from the top of the frustum barrel 6, and then replaces the sealing ring 11 installed on the outer side of the piston plate 10.

[0046] Compared with related technologies, the water hammer protection device for water supply networks provided by this utility model has the following beneficial effects:

[0047] Through the cooperation of the sealing component 5 and the buffer component 8, when the sealing ring 11 needs to be replaced during use, there is no need to shut down the water supply line. Simply lift the piston plate 10 to the top of the sealing component 5 using the buffer component 8, and then rotate the handle 53 to drive the threaded rod 54 to rotate, so that the two sealing plates 55 move towards the middle and seal the through groove 52, thus forming a closed space inside the protective tank 2, effectively preventing water leakage in the pipeline network. Then, the sealing cover 7 can be removed to replace the sealing ring 11. The whole operation process is simple and quick, avoiding interruption of water supply service due to the replacement of the sealing ring, and also avoiding temporary failure of the water hammer protection function during the replacement process. It is especially suitable for areas with high requirements for water supply continuity and water hammer protection safety.

[0048] Second Embodiment

[0049] Please refer to the following: Figure 5 Based on the water hammer protection device for water supply networks provided in the first embodiment of this application, the second embodiment of this application proposes another water hammer protection device for water supply networks. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0050] Specifically, the difference in the second embodiment of this application regarding the water hammer protection device for a water supply network is that the bottom of the movable rod 84 is fixedly installed on the top of the piston plate 10.

[0051] The pressure sensor 13 is located on the top of the moving rod 84.

[0052] The working principle of the water hammer protection device for water supply networks provided by this utility model is as follows:

[0053] During the operation of the device, the vibration sensor 12 can detect the vibration of the water pipe 3 caused by water hammer in real time and transmit the vibration signal to the external control system. When the vibration amplitude exceeds the preset threshold, it indicates that a relatively serious water hammer phenomenon may have occurred. At the same time, the pressure sensor 13 will detect the pressure exerted on the top of the moving rod 84. This pressure reflects the degree of compression of the spring 83 and indirectly reflects the intensity of the water hammer impact inside the protective tank 2. The pressure sensor 13 transmits the pressure signal to the external control system. Based on the signals fed back by the vibration sensor 12 and the pressure sensor 13, the staff can promptly understand the severity of the water hammer phenomenon and take corresponding measures to reduce the damage of water hammer to the pipeline network and the device.

[0054] Compared with related technologies, the water hammer protection device for water supply networks provided by this utility model has the following beneficial effects:

[0055] By setting up vibration sensor 12 and pressure sensor 13, the vibration amplitude and impact pressure of water hammer can be monitored in real time. The monitoring data is transmitted to the external control system, which makes it easier for staff to grasp the water hammer situation in a timely manner and make adjustments. This improves the intelligence level of the device and the initiative in protecting against water hammer, and further ensures the safe operation of the water supply network.

[0056] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A water hammer protection device for water supply networks, characterized in that, include: Protective barrel; A sealing assembly is disposed on the top of the protective barrel. The sealing assembly includes a mounting frame, which is fixedly installed on the top of the protective barrel. A through groove is provided inside the mounting frame. A rotating handle is rotatably connected to both ends of the mounting frame. A threaded rod is fixedly installed at one end of the rotating handle. A sealing plate is threadedly connected to the outer side of the threaded rod. A frustum-shaped barrel, which is fixedly installed on the top of the mounting frame; A sealing cap, which is threadedly connected to the top of the outer side of the frustum-shaped barrel; A buffer assembly is disposed on the inner side of the frustum-shaped barrel; A piston plate is disposed on the inner side of the protective barrel, and a sealing ring is fixedly installed on the outer side of the piston plate.

2. The water hammer protection device for water supply networks according to claim 1, characterized in that, An installation plate is fixedly installed at the bottom of the protective barrel, and water pipes are fixedly installed on both sides of the protective barrel.

3. The water hammer protection device for water supply networks according to claim 1, characterized in that, Both water pipes are fixedly installed with pressure relief pipes at their tops, and one end of each pressure relief pipe is fixedly installed on the side of the protective barrel.

4. A water hammer protection device for water supply networks according to claim 2, characterized in that, The buffer assembly includes a handle disposed on the top of the sealing cover. A threaded tube is fixedly installed at the bottom of the handle. The threaded tube is threadedly connected to the inside of the top of the sealing cover. A movable rod is slidably connected to the inside of the bottom of the threaded tube. A spring is fixedly installed at the top of the movable rod.

5. A water hammer protection device for a water supply network according to claim 4, characterized in that, The bottom of the moving rod is fixedly installed on the top of the piston plate.

6. A water hammer protection device for a water supply network according to claim 4, characterized in that, A vibration sensor is fixedly installed at the bottom of the water pipe, and a pressure sensor is fixedly installed at the top of the inner side of the threaded pipe.

7. A water hammer protection device for a water supply network according to claim 6, characterized in that, The pressure sensor is located at the top of the moving rod.

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