Pressure stabilizing device for water pipeline

Abstract

The utility model relates to a kind of water pipeline steady pressure device with pressure, and relate to steady pressure water transport technical field.The water pipeline steady pressure device with pressure includes water source and steady pressure pool, and the water level elevation of water source is not lower than the water level elevation of steady pressure pool;Water source is connected with main water pipeline, and steady pressure pool is directly communicated with main water pipeline by connecting pipeline;Water in main water pipeline can flow into steady pressure pool by connecting pipeline, to reduce the pressure generated by positive pressure water hammer in main water pipeline;Water in steady pressure pool can flow into main water pipeline by connecting pipeline, to reduce the pressure generated by negative pressure water hammer in main water pipeline.The water pipeline steady pressure device with pressure described above, its manufacturing cost is low, structure simplifies and can effectively inhibit the steady pressure of water hammer, improves water transport reliability.

Description

Technical Field

[0001] This utility model relates to the field of pressure-stabilized water transmission technology, and more specifically, to a pressure-stabilizing device for pressurized water transmission pipelines. Background Technology

[0002] In mountainous and hilly areas, gravity flow is often used for pressurized pipeline water transport to deliver water from higher elevations to lower-lying villages and towns for production, domestic use, and irrigation. Traditional systems typically include open-type regulating reservoirs at higher elevations in the end-user area for water volume regulation and pressure distribution. To prevent overflow, control valves are installed on the inlet pipes to ensure unidirectional water flow into the reservoir.

[0003] However, pipelines in mountainous areas are long and undulating, and the opening and closing of control valves can easily trigger hydraulic transition processes, resulting in water hammer. Positive water hammer causes a sudden pressure surge, posing a risk of pipe bursting; negative water hammer creates a vacuum, which may lead to pipeline collapse. To address this problem, conventional methods involve adding protective facilities such as surge tanks and water hammer relief valves. However, due to terrain constraints, these protective facilities are often limited in effectiveness, and are costly and complex to operate and maintain. Utility Model Content

[0004] The purpose of this utility model is to provide a pressure stabilizing device for pressurized water pipelines, which has low manufacturing cost, simple structure and can effectively suppress water hammer pressure, thereby improving the reliability of water transmission.

[0005] The embodiments of this utility model are implemented as follows: In one aspect, this utility model provides a pressure stabilizing device for a pressurized water pipeline, comprising a water source and a pressure stabilizing tank, wherein the water level of the water source is not lower than the water level of the pressure stabilizing tank; the water source is connected to a main water pipeline, and the pressure stabilizing tank is directly connected to the main water pipeline through a connecting pipe; the water in the main water pipeline can flow into the pressure stabilizing tank through the connecting pipe to reduce the pressure generated by positive water hammer in the main water pipeline; the water in the pressure stabilizing tank can flow into the main water pipeline through the connecting pipe to reduce the pressure generated by negative water hammer in the main water pipeline.

[0006] Optionally, when the water level of the water source is equal to the water level of the pressure stabilizing tank, the pressure stabilizing tank is an open-top structure, with the top of the pressure stabilizing tank directly connected to the atmosphere.

[0007] Optionally, when the water level of the water source is higher than the water level of the pressure stabilizing tank, the pressure stabilizing tank includes a main body and a sealing cover on top of the main body, with atmospheric pressure air between the water surface inside the main body and the sealing cover.

[0008] Optionally, when the water level of the water source is higher than the water level of the pressure stabilizing tank, the pressure stabilizing tank includes a main body and a sealing cover on top of the main body. An inflation device is provided on the outside of the sealing cover, and the inflation device is filled with pre-compressed gas. The inflation port of the inflation device is connected to the inside of the sealing cover through an inflation pipe. The pre-compressed gas in the inflation device is introduced into the sealing cover through the inflation pipe, so that there is pre-compressed gas between the water surface inside the main body and the sealing cover.

[0009] Optionally, a check valve is provided on the inflation pipe to prevent the pre-compressed gas in the sealing cover from entering the inflation device through the inflation pipe.

[0010] Optionally, the pre-compressed gas is at least one of compressed air or compressed nitrogen.

[0011] Optionally, the pressurized water pipeline pressure stabilizing device also includes a water distribution pipeline, the inlet end of which is connected to the interior of the pressure stabilizing tank, and the water in the pressure stabilizing tank flows out through the outlet end of the water distribution pipeline.

[0012] Optionally, there are multiple water distribution pipes, which are arranged at intervals along the height of the pressure stabilizing tank.

[0013] Optionally, a working valve is installed on the main water supply pipeline, and the working valve can adjust its opening to regulate the flow rate in the main water supply pipeline.

[0014] Optionally, multiple maintenance valves are provided at intervals along the extension direction of the main water pipeline, and the maintenance valves can block the flow of water.

[0015] The beneficial effects of this utility model include: This application provides a pressure stabilizing device for a pressurized water transmission pipeline, including a water source and a pressure stabilizing tank. The water level of the water source is not lower than the water level of the pressure stabilizing tank, and the water flows naturally to the pressure stabilizing tank by gravity. The water source is connected to a main water transmission pipeline, and the pressure stabilizing tank is directly connected to the main water transmission pipeline through a connecting pipe. Compared with the existing technology that sets up pressure regulating wells, water hammer relief valves, and other protective facilities, this application directly connects the pressure stabilizing tank and the main water transmission pipeline, making the pressure stabilizing tank and the main water transmission pipeline a hydraulic community. Water can flow freely between the two to achieve bidirectional pressure stabilization and reduce the installation cost. Water in the main water transmission pipeline can flow into the pressure stabilizing tank through the connecting pipe to reduce the pressure generated by positive water hammer in the main water transmission pipeline, effectively reducing the risk of pipeline rupture caused by positive water hammer. Water in the pressure stabilizing tank can flow into the main water transmission pipeline through the connecting pipe to reduce the pressure generated by negative water hammer in the main water transmission pipeline, effectively avoiding the phenomenon of pipeline collapse due to atmospheric pressure caused by negative pressure. The aforementioned pressure stabilizing device for pressurized water pipelines has low manufacturing cost, simple structure, and can effectively suppress water hammer pressure, thereby improving the reliability of water transmission. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 One of the structural schematic diagrams of the pressurized water pipeline pressure stabilizing device provided in the embodiments of this utility model; Figure 2 A second schematic diagram of the pressure stabilizing device for a pressurized water pipeline provided in this embodiment of the present utility model; Figure 3 The third schematic diagram of the pressurized water pipeline pressure stabilizing device provided in this embodiment of the utility model; Figure 4 The fourth schematic diagram of the pressure stabilizing device for pressurized water pipelines provided in this embodiment of the present utility model.

[0018] Icons: 100-Pressure stabilizing device for pressurized water pipeline; 110-Water source; 120-Pressure stabilizing tank; 121-Main body; 122-Sealing cover; 123-Inflating device; 124-Inflating pipeline; 125-Check valve; 130-Main water pipeline; 140-Connecting pipeline; 150-Water distribution pipeline. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Please refer to Figure 1 , Figure 2 Figure 3 and Figure 4 This embodiment provides a pressurized water pipeline pressure stabilizing device 100, including a water source 110 and a pressure stabilizing tank 120. The water level of the water source 110 is not lower than the water level of the pressure stabilizing tank 120. The water source 110 is connected to a main water pipeline 130, and the pressure stabilizing tank 120 is directly connected to the main water pipeline 130 through a connecting pipe 140. The water in the main water pipeline 130 can flow into the pressure stabilizing tank 120 through the connecting pipe 140 to reduce the pressure generated by positive water hammer in the main water pipeline 130. The water in the pressure stabilizing tank 120 can flow into the main water pipeline 130 through the connecting pipe 140 to reduce the pressure generated by negative water hammer in the main water pipeline 130.

[0025] Specifically, the pressurized water pipeline pressure stabilizing device 100 includes a water source 110 and a pressure stabilizing tank 120. The elevation of the water source 110 is not lower than that of the pressure stabilizing tank 120, ensuring that the water flow can be naturally transported to the pressure stabilizing tank 120 under the action of gravity. In mountainous and hilly areas, the water source 110 can be a natural high-level reservoir or an artificial water storage device. This application does not impose any restrictions on the specific form of the water source 110.

[0026] The water source 110 and the pressure stabilizing tank 120 are connected via the main water supply pipeline 130. There is at least one pressure stabilizing tank 120, and the specific number can be adjusted according to the actual water consumption or the number of water users. If there are many water users, the number of pressure stabilizing tanks 120 can be increased based on the specific number of water users and their distribution area. Each pressure stabilizing tank 120 is directly connected to the main water supply pipeline 130 via a connecting pipe. Water flows into the pressure stabilizing tank 120 sequentially through the main water supply pipeline 130 and the connecting pipe 140. Because the pressure stabilizing tank 120 and the water source 110 are directly connected via pipelines, compared to the existing pressurized water supply pipelines which require protective facilities such as pressure regulating wells and water hammer relief valves, the equipment cost is saved. Furthermore, the pressure stabilizing tank 120 and the main water supply pipeline 130 form a bidirectional hydraulic system, becoming a unified hydraulic system. Water can flow freely between the two to achieve bidirectional pressure stabilization, balancing economy and practicality.

[0027] In actual operation, when positive water hammer pressure occurs in the main water supply pipeline 130 due to sudden changes in flow rate, the instantaneously increased water pressure in the pipeline will push the water to flow rapidly into the pressure stabilizing tank 120 along the connecting pipe 140. The water-holding space of the pressure stabilizing tank 120 can directly receive this extra water, which is equivalent to providing a "pressure relief channel" for the water hammer pressure. At the same time, the collision and buffering between the water flowing in and the original water in the pressure stabilizing tank 120 will greatly weaken the energy of the water hammer wave and prevent the pressure from continuing to rise and causing the pipe to burst. When negative water hammer pressure occurs in the main water supply pipeline 130, the vacuum suction formed in the pipeline will cause the water in the pressure stabilizing tank 120 to flow back into the main water supply pipeline 130 through the connecting pipe 140, quickly filling the water gap in the pipeline, eliminating the vacuum state, and thus effectively preventing the pipeline from collapsing, cracking and other damage caused by negative pressure. Compared with traditional systems with one-way control valves, this two-way interconnection structure does not rely on complex water hammer protection equipment. Pressure stabilization can be achieved solely through the natural hydraulic regulation of the pressure stabilizing tank 120. This not only simplifies the system structure but also significantly reduces the project cost and subsequent maintenance costs. It is especially suitable for water transmission projects in mountainous villages and towns with complex terrain and limited funds.

[0028] To address the elevation differences between the water source 110 and the pressure stabilizing tank 120 under different terrain conditions, this utility model provides three adaptable pressure stabilizing tank 120 structures to ensure that ideal pressure stabilization effects can be achieved in various scenarios.

[0029] In one specific embodiment of this application, such as Figure 1 As shown, the water level of water source 110 is exactly the same as the water level of pressure stabilizing tank 120. At this time, pressure stabilizing tank 120 is an open-top tank structure, and the top of pressure stabilizing tank 120 is directly connected to the atmosphere, that is, an open-type pressure stabilizing tank 120 without pressure.

[0030] Specifically, the pressure stabilizing tank 120 can be made of reinforced concrete, fiberglass, or masonry, etc. The effective volume of the tank needs to be calculated and determined based on parameters such as the total volume of the main water supply pipeline 130 and the maximum water hammer flow rate, so as to ensure that there is enough space to accommodate the additional water body during positive water hammer.

[0031] For example, in a water conveyance project for a mountain village, the water source 110 is located in a reservoir on the mountain top, and the pressure stabilizing tank 120 is built on a platform of the same elevation near the village. The pressure stabilizing tank 120 adopts an open structure without pressure, which not only avoids the overflow waste caused by the failure of the control valve in the traditional regulating water tank, but also achieves water hammer protection through bidirectional water flow.

[0032] The pressure stabilizing tank 120 constructed in this way has a simple structure, low construction difficulty, and extremely low maintenance cost. It does not require additional sealing or air-filling equipment and can achieve pressure stabilization solely by atmospheric pressure and the flow of water itself. At the same time, the open structure facilitates daily cleaning of impurities inside the tank. It is suitable for scenarios where the water source 110 and the water supply area are at the same elevation and the terrain is relatively flat.

[0033] In one specific embodiment of this application, such as Figure 2 As shown, the water level elevation of the water source 110 is greater than that of the pressure stabilizing tank 120, but the difference is small. For example, the difference between the water level elevation of the water source 110 and the water level elevation of the pressure stabilizing tank 120 is 3-10 meters. At this time, the pressure stabilizing tank 120 includes a main body 121 and a sealing cover 122 covering the top of the main body 121. There is atmospheric pressure air between the water surface inside the main body 121 and the sealing cover 122, that is, an atmospheric pressure closed pressure stabilizing tank 120.

[0034] Specifically, the structure of the main body 121 of the pressure stabilizing tank 120 is consistent with that of a traditional open-type regulating water tank. It is mainly used for storing water. Its volume design needs to take into account both water supply and water hammer buffering requirements, and can be flexibly adjusted according to actual needs. Preferably, the sealing cover 122 is made of corrosion-resistant and airtight materials, such as stainless steel plate, FRP composite plate, etc.

[0035] The edge of the main body 121 of the pressure vessel and the sealing cover 122 can be connected by bolts for sealing. Preferably, a rubber sealing ring can be provided at the connection between the two to reduce the possibility of gas leakage inside the pressure vessel 120. Figure 2 As shown, preferably, the sealing cover 122 is an arched cover, so that a certain space is reserved between its top and the surface of the water in the pool, which is convenient for storing atmospheric pressure air, and the compressibility of atmospheric pressure air is used to further enhance the absorption capacity of water hammer pressure.

[0036] For example, in water conveyance projects in mountainous and hilly areas, the elevation of the water source 110 is 6 meters higher than that of the pressure stabilizing tank 120. After adopting the above-mentioned atmospheric pressure closed pressure stabilizing tank 120, when positive water hammer occurs in the main water conveyance pipeline 130, the water flowing into the pressure stabilizing tank 120 will compress the atmospheric pressure air at the top. The elastic deformation of the air further consumes the energy of the water hammer wave, making the pressure decay faster and effectively suppressing the water hammer pressure. At the same time, the sealing cover 122 can effectively prevent water evaporation and the entry of rainwater and debris, ensuring the quality of the water supply.

[0037] The aforementioned atmospheric pressure closed pressure stabilizing tank 120 has the advantage of improving the pressure stabilizing effect without increasing the cost of high-pressure sealing, and it takes into account both sealing performance and economy. It is suitable for scenarios where the elevation difference between the water source 110 and the pressure stabilizing tank 120 is not large and there are certain requirements for water quality protection.

[0038] In one specific embodiment of this application, the water level elevation of the water source 110 is greater than the water level elevation of the pressure stabilizing tank 120, and the difference between the two is significant, such as exceeding 10 meters. Figure 3 As shown, the pressure stabilizing tank 120 includes a main body 121 and a sealing cover 122 covering the top of the main body 121. An inflation device 123 is provided on the outside of the sealing cover 122, and the inflation device 123 is filled with pre-compressed gas. The inflation port of the inflation device 123 is connected to the inside of the sealing cover 122 through an inflation pipe 124. The pre-compressed gas in the inflation device 123 is introduced into the sealing cover 122 through the inflation pipe 124, so that there is pre-compressed gas between the water surface in the main body 121 and the sealing cover 122, that is, a pressurized closed pressure stabilizing tank 120.

[0039] Specifically, the structure of the main body 121 of the pressure stabilizing tank 120 is consistent with that of a traditional open-type regulating water tank. It is mainly used for storing water. Its volume design needs to take into account both water supply and water hammer buffering requirements, and can be flexibly adjusted according to actual needs. Preferably, the sealing cover 122 is made of corrosion-resistant and airtight materials, such as stainless steel plate, FRP composite plate, etc.

[0040] The edge of the main body 121 of the pressure vessel and the sealing cover 122 can be connected by bolts for sealing. Preferably, a rubber sealing ring can be provided at the connection between the two to reduce the possibility of gas leakage inside the pressure vessel 120. Figure 3 As shown, preferably, the sealing cover 122 is an arched cover, so that a certain space is reserved between its top and the surface of the water in the pool.

[0041] like Figure 3As shown, an inflation device 123 is added to the outside of the sealing cover 122. Preferably, the inflation device 123 is a small gas storage tank equipped with an air pump. The inflation device 123 is pre-filled with compressed gas, preferably a gas that is highly stable, not easily oxidized, and non-corrosive. Optionally, the pre-compressed gas is at least one of compressed air or compressed nitrogen. Nitrogen, due to its stable chemical properties, can effectively avoid the impact of gas composition changes on the sealing cover 122 and the water body during long-term use, and is especially suitable for scenarios with high requirements for water supply quality.

[0042] It should be noted that the pressure setting of the pre-compressed gas must match the elevation difference between the water source 110 and the pressure stabilizing tank 120. Preferably, the pressure of the pre-compressed gas is 0.1-0.2 MPa higher than the static water pressure corresponding to the elevation difference. For example, when the elevation difference between the water source 110 and the pressure stabilizing tank 120 is 25 meters, the corresponding static water pressure is approximately 0.25 MPa. In this case, the initial pressure of the pre-compressed gas can be set to 0.35-0.45 MPa, absorbing the large fluctuations in water hammer pressure through the high compressibility of the gas. Of course, the above data is only a specific illustration of this application. The initial pressure of the pre-compressed gas can be flexibly adjusted according to the actual elevation difference and static water pressure, as long as it can effectively suppress water hammer pressure. This application does not impose any restrictions on the initial pressure of the pre-compressed gas.

[0043] The aforementioned pressurized closed pressure stabilizing tank 120 can cope with the drastic water hammer pressure changes under large elevation differences, and the pressure stabilization effect is more stable and reliable. At the same time, the gas in the sealing cover 122 can be replenished periodically through the air filling device 123 to avoid the decline in pressure stabilization performance due to long-term leakage. It is suitable for large-scale water conveyance projects with high elevation differences in mountainous areas, long water conveyance distances, and high water hammer risks.

[0044] like Figure 3 As shown, the inflation pipe 124 is further provided with a check valve 125. The check valve 125 adopts a one-way flow structure, which only allows the pre-compressed gas in the inflation device 123 to enter the sealing cover 122, and can effectively prevent the pre-compressed gas in the sealing cover 122 from entering the inflation device 123 through the inflation pipe 124, so as to ensure the gas pressure in the sealing cover 122 is stable and improve the reliability of the pressure stabilization process.

[0045] like Figure 4 As shown, multiple open-type pressure stabilizing tanks 120, atmospheric pressure closed-type pressure stabilizing tanks 120, and pressurized closed-type pressure stabilizing tanks 120 can be set up simultaneously according to changes in the actual terrain. This application does not impose any restrictions on the specific number or location of these tanks.

[0046] To further improve the adaptability of the water supply system, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the pressurized water pipeline pressure stabilizing device 100 also includes a water distribution pipeline 150. The inlet end of the water distribution pipeline 150 is connected to the interior of the pressure stabilizing tank 120, and the water in the pressure stabilizing tank 120 flows out through the outlet end of the water distribution pipeline 150.

[0047] Specifically, the two ends of the water distribution pipe 150 are the inlet and the outlet, respectively. The inlet is equipped with an inlet and the outlet is equipped with an outlet. The inlet is connected to the interior of the pressure stabilizing tank 120, and the outlet is connected to the production water network, domestic water network, or irrigation water network to guide the water in the pressure stabilizing tank 120 to the water-using unit.

[0048] Considering the varying water pressure requirements of different water usage scenarios, the number of water distribution pipes 150 can optionally be multiple, arranged sequentially at intervals along the height of the pressure stabilizing tank 120. For example, on a pressure stabilizing tank 120 with a height of 6 meters, one water distribution pipe 150 can be installed at 1 meter, 3 meters, and 5 meters respectively. The water distribution pipes 150 near the bottom of the pressure stabilizing tank 120 can provide higher outlet water pressure, suitable for water supply to high-rise buildings or long-distance irrigation; the water distribution pipes 150 near the top have relatively lower outlet water pressure, suitable for low-rise buildings or short-distance water usage scenarios, thus achieving precise matching of different water needs. At the same time, the arrangement of multiple water distribution pipes 150 can also avoid overall water supply interruption caused by the failure of a single pipe, improving the reliability of the system. Its beneficial effects include good water distribution uniformity, wide applicability, and effective improvement of water supply service quality.

[0049] In one possible embodiment of this application, a working valve is provided on the main water supply pipeline 130. The working valve can adjust its opening to regulate the flow rate within the main water supply pipeline 130. Preferably, the working valve is installed near the water source 110 and is an adjustable valve type, such as a butterfly valve or an eccentric rotary valve. By adjusting the valve opening, the water flow rate within the main water supply pipeline 130 can be precisely controlled, adapting to flow rate changes during peak and off-peak water usage periods, avoiding water hammer caused by sudden flow changes, and further improving the stability and reliability of water supply.

[0050] In one embodiment of this application, multiple maintenance valves are spaced apart along the extension direction of the main water supply pipeline 130. These maintenance valves can block water flow. The spacing between adjacent maintenance valves can be flexibly adjusted according to the pipeline length and terrain conditions. Preferably, the maintenance valves are gate valves or ball valves with good sealing performance and reliable closure. When a local fault occurs in the main water supply pipeline 130 and maintenance is required, the maintenance valves in the corresponding section can be closed to block water flow, achieving local water outage maintenance without affecting the normal operation of the entire water supply system.

[0051] By installing inspection valves, maintenance convenience is improved and operation and maintenance costs are reduced. The beneficial effects are that the flexibility and reliability of the entire water transmission system are enhanced, and the service life of the equipment is extended.

[0052] The aforementioned pressurized water pipeline pressure stabilizing device 100 includes a water source 110 and a pressure stabilizing tank 120. The water level of the water source 110 is not lower than the water level of the pressure stabilizing tank 120, and the water source 110 flows naturally to the pressure stabilizing tank 120 by gravity. The water source 110 is connected to a main water transmission pipeline 130, and the pressure stabilizing tank 120 is directly connected to the main water transmission pipeline 130 through a connecting pipe 140. Compared with the prior art that sets up pressure regulating wells, water hammer relief valves, and other protective facilities, this application directly connects the pressure stabilizing tank 120 to the main water transmission pipeline 130, making the pressure stabilizing tank 120 and the main water transmission pipeline 130 form a pressure stabilizing tank 120 and the main water transmission pipeline 130 respectively. As a hydraulic system, water can flow freely between the two, achieving bidirectional pressure stabilization and reducing installation costs. Water in the main water supply pipeline 130 can flow into the pressure stabilizing tank 120 through the connecting pipe 140, reducing the pressure generated by positive water hammer in the main water supply pipeline 130 and effectively lowering the risk of pipeline rupture due to positive water hammer. Water in the pressure stabilizing tank 120 can flow into the main water supply pipeline 130 through the connecting pipe 140, reducing the pressure generated by negative water hammer in the main water supply pipeline 130 and effectively preventing pipeline collapse due to atmospheric pressure caused by negative pressure. The aforementioned pressurized water supply pipeline pressure stabilizing device 100 has low manufacturing cost, a simplified structure, and effectively suppresses water hammer pressure, improving water supply reliability.

[0053] The above description is merely an optional embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0054] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

Claims

1. A pressure stabilizing device for pressurized water pipelines, characterized in that, The system includes a water source and a pressure stabilizing tank. The water level of the water source is not lower than the water level of the pressure stabilizing tank. The water source is connected to a main water supply pipeline, and the pressure stabilizing tank is directly connected to the main water supply pipeline via a connecting pipe. Water in the main water supply pipeline can flow into the pressure stabilizing tank through the connecting pipe to reduce the pressure generated by positive water hammer in the main water supply pipeline. Water in the pressure stabilizing tank can flow into the main water supply pipeline through the connecting pipe to reduce the pressure generated by negative water hammer in the main water supply pipeline.

2. The pressure stabilizing device for pressurized water pipelines according to claim 1, characterized in that, When the water level of the water source is equal to the water level of the pressure stabilizing tank, the pressure stabilizing tank has an open-top structure, and the top of the pressure stabilizing tank is directly connected to the atmosphere.

3. The pressure stabilizing device for pressurized water pipelines according to claim 1, characterized in that, When the water level of the water source is greater than the water level of the pressure stabilizing tank, the pressure stabilizing tank includes a main body and a sealing cover on top of the main body, and there is atmospheric pressure air between the water surface inside the main body and the sealing cover.

4. The pressure stabilizing device for pressurized water pipelines according to claim 1, characterized in that, When the water level of the water source is higher than the water level of the pressure stabilizing tank, the pressure stabilizing tank includes a main body and a sealing cover on top of the main body. An inflation device is provided on the outside of the sealing cover, and the inflation device is filled with pre-compressed gas. The inflation port of the inflation device is connected to the inside of the sealing cover through an inflation pipe. The pre-compressed gas in the inflation device is introduced into the sealing cover through the inflation pipe, so that there is pre-compressed gas between the water surface inside the main body and the sealing cover.

5. The pressure stabilizing device for pressurized water pipelines according to claim 4, characterized in that, The inflation pipe is equipped with a check valve, which is used to prevent the pre-compressed gas in the sealing cover from entering the inflation device through the inflation pipe.

6. The pressure stabilizing device for pressurized water pipelines according to claim 4, characterized in that, The pre-compressed gas is at least one of compressed air or compressed nitrogen.

7. The pressure stabilizing device for pressurized water pipelines according to claim 1, characterized in that, The pressurized water pipeline pressure stabilizing device also includes a water distribution pipeline. The inlet end of the water distribution pipeline is connected to the interior of the pressure stabilizing tank, and the water in the pressure stabilizing tank flows out through the outlet end of the water distribution pipeline.

8. The pressure stabilizing device for pressurized water pipelines according to claim 7, characterized in that, The number of water distribution pipes is multiple, and the multiple water distribution pipes are arranged at intervals along the height direction of the pressure stabilizing tank.

9. The pressure stabilizing device for pressurized water pipelines according to claim 1, characterized in that, The main water supply pipeline is equipped with a working valve, which can adjust its opening to regulate the flow rate in the main water supply pipeline.

10. The pressure stabilizing device for pressurized water pipelines according to claim 1, characterized in that, Multiple maintenance valves are spaced apart along the extension direction of the main water pipeline, and the maintenance valves can block the flow of water.

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