A water delivery system capable of reducing construction excavation

Abstract

The application provides a water delivery system capable of reducing construction excavation, comprising a water delivery pipeline, a plurality of air valve wells arranged at each exhaust node of the water delivery pipeline, and an air valve installed in each air valve well; further comprising a gas delivery straight pipe; the air valve wells are divided into a first air valve well, a second air valve well and a third air valve well; the first air valve well and the second air valve well each have a gas venting elbow pipe arranged to protrude from the ground, the second air valve well and the third air valve well each have a gas pipe joint assembly; the third air valve well is buried underground, and its gas pipe joint assembly is connected with the gas pipe joint assembly of the adjacent second air valve well or the gas pipe joint assembly of the adjacent third air valve well through the gas delivery straight pipe. According to the application, a plurality of air valve wells are arranged according to the water delivery route, and a corresponding arrangement mode is selected according to the actual situation, so that the design requirement of normal exhaust is met, and the construction excavation and the occupation of the ground space are reduced.

Description

Technical Field

[0001] This invention belongs to the technical field of long-distance water conveyance systems, specifically relating to a water conveyance system that can reduce construction excavation. Background Technology

[0002] Air valve wells are the most frequently used type of well in long-distance water transmission systems. Air valves should be installed at the starting point of pipeline convex points; for long-distance water transmission pipelines without convex points, air valves should preferably be installed every 1 km. The rational structure of air valve wells is related to the project cost and schedule.

[0003] Because the construction of long-distance water conveyance projects is inevitably affected by the geographical environment, for example, if the water conveyance line passes through areas with clear ownership or management, such as farmland, orchards, and forest farms, air valve wells should not be exposed above ground, otherwise they will occupy land and affect the normal use of agricultural machinery in that area. However, bypassing these areas may increase the project cost.

[0004] Therefore, how to construct according to the established design route, reduce construction excavation, ensure the construction period and cost, and at the same time maintain the original ground furnishings will be an urgent problem for the engineers to solve. Summary of the Invention

[0005] The purpose of this invention is to provide a water conveyance system that can reduce construction excavation, effectively reduce ground occupation and construction excavation, shorten the construction period, and reduce construction costs.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a water conveyance system that reduces construction excavation, comprising a water conveyance pipeline, a plurality of air valve wells disposed at each venting node of the water conveyance pipeline, and an air valve installed in each air valve well; further comprising a straight air conveying pipe; the air valve wells are divided into: a first air valve well, a second air valve well, and a third air valve well; the first air valve well and the second air valve well each have a venting bend extending above the ground, and the second air valve well and the third air valve well each have an air conveying pipe connector assembly; the third air valve well is buried underground, and its air conveying pipe connector assembly is connected to the air conveying pipe connector assembly of the adjacent second air valve well through the straight air conveying pipe, or connected to the air conveying pipe connector assembly of the adjacent third air valve well.

[0007] Furthermore, the first air valve well, the second air valve well, and the third air valve well each have:

[0008] A retaining block used to fix water pipelines;

[0009] A prefabricated well body for accommodating air valves is fixedly installed on the top of the pier. The wellheads of the first and second air valve wells extend out of the ground, while the wellhead of the third air valve well is buried underground.

[0010] A well cover device for opening and closing the wellhead, the well cover device being installed at the wellhead, the cover body of the well cover device of the first air valve well and the cover body of the well cover device of the second air valve well are both provided with vents for connecting the vent bend.

[0011] The gas pipeline connector assembly includes:

[0012] The gas transmission tee head pipe is prefabricated in the pier of the corresponding air valve well, and it has two coaxial pipe heads and a vertical pipe head;

[0013] The well chamber exhaust pipe is prefabricated on the prefabricated well body of the corresponding air valve well and has an outer pipe head extending out of the well.

[0014] An intermediate joint, wherein the intermediate joint has connecting pipes that connect to the vertical pipe head and the outer pipe head respectively.

[0015] Furthermore, the town mound includes:

[0016] The first precast pier has a first pouring groove on its top surface;

[0017] The second precast anchor body is fixedly installed above the first precast anchor body. Its bottom surface is provided with a second casting groove that matches the first casting groove, and its top surface is provided with a casting hole, a discharge hole and a through-pipe hole that connect to the second casting groove. The inner diameter of the through-pipe hole is larger than the outer diameter of the tee pipe head at the exhaust node.

[0018] The concrete filler is fixedly installed in the cavity between the first pouring trench, the second pouring trench and the water supply pipe.

[0019] Furthermore, the first casting tank has:

[0020] One or two first-step half-holes, wherein the diameter of the middle part of the first-step half-hole is larger than the outer diameter of the water supply pipe, and the inner diameter of the two ends of the first-step half-hole matches the outer diameter of the water supply pipe;

[0021] When there are two first stepped half-holes, the first connecting slot connects the two first stepped half-holes.

[0022] The second casting tank has:

[0023] One or two second-step half-holes, wherein the diameter of the middle part of the second-step half-hole is larger than the outer diameter of the water supply pipe, and the inner diameter of the two ends of the second-step half-hole matches the outer diameter of the water supply pipe;

[0024] When there are two second-step half-holes, the second connecting slot connects the two second-step half-holes.

[0025] Furthermore, the top surface of the first precast pier is provided with at least two first positioning structures, and the bottom surface of the second precast pier is provided with at least two second positioning structures that match the first positioning structures one by one. The height of the first positioning structure and the second positioning structure is greater than the length of the through hole.

[0026] Furthermore, the through-hole is a tapered hole with a smaller inner diameter at the top and a larger inner diameter at the bottom.

[0027] Furthermore, the length of the middle portion of both the first and second stepped half-holes is 1 / 8 to 1 / 7 of the overall length of the hole, and their inner diameters are 1.2 to 1.3 times the outer diameter of the water supply pipe.

[0028] Furthermore, the first air valve well and the second air valve well are also equipped with a turbine generator that can generate electricity by being propelled by the gas in the ventilation bend, and a light warning device that is powered by the turbine generator and emits light. The turbine generator and the light warning device are installed at the air outlet end of the ventilation bend.

[0029] The third air valve well is also equipped with a turbine generator that can generate electricity by being propelled by the gas inside the well, and a positioning device powered by the turbine generator to achieve positioning. The turbine generator is installed at the end of the exhaust pipe inside the well, and the positioning device is installed at the center of the bottom of the well cover.

[0030] Furthermore, the turbine power generation device includes:

[0031] The mounting ring has a mounting sleeve fixed to its center by several support arms;

[0032] A turbine, which is rotatably mounted on the mounting sleeve via a rotating shaft;

[0033] A power generation mechanism, which is fixedly installed inside the mounting ring;

[0034] A gear mechanism that connects the rotating shaft and the main shaft of the power generation mechanism;

[0035] The light warning device includes:

[0036] A light-emitting body, which is fixedly mounted on the inner wall of the mounting ring of a corresponding turbine power generation device and powered by the turbine power generation device;

[0037] A reflective lens is located below the mounting ring of the corresponding turbine generator and is fixedly connected to the bottom of the turbine generator shaft; the outer wall of the reflective lens is provided with a light-transmitting surface and an opaque surface;

[0038] The positioning device includes: a positioning module, a main control module, a communication module, a buzzer module, and a power supply module;

[0039] The positioning module, communication module, and buzzer module are all electrically connected to the main control module, and the power supply module supplies power to the entire device.

[0040] Furthermore, it also includes a leakage detection device; the leakage detection device is installed at the bottom of the precast well body; the leakage detection device is an electrical signal detection device or an optical signal detection device;

[0041] The leakage detection device in the first air valve well and the second air valve well is a light signal detection device. The curved section of the ventilation bend of both is provided with a detection tube facing the light signal detection device, and the top of the detection tube is provided with a transparent cover.

[0042] The leakage detection device in the third air valve well is an electrical signal detection device and is powered by the turbine generator.

[0043] Furthermore, a protective net is provided at the air outlet end of the venting bend; and a sound-absorbing material layer is wrapped around the outer wall of the venting bend.

[0044] Compared with the prior art, the beneficial effects of the present invention are:

[0045] 1) This invention sets up multiple air valve wells according to the water conveyance route, and selects the appropriate air valve well and construction method according to the actual situation. This not only meets the design requirements for normal venting, but also reduces construction excavation and occupation of ground space, making it more environmentally friendly.

[0046] 2) The present invention divides the integral well in the prior art into a pier set at the tee head of the water pipeline and a well body set on the pier to accommodate only equipment such as the air vent valve. The structure is simple and ingenious, easy to manufacture and install, and not only meets the functions of opening or maintenance of equipment, but also greatly reduces the amount of materials used, engineering excavation and land occupation, and shortens the construction period.

[0047] 3) This invention combines prefabrication and cast-in-place processes, significantly reducing on-site construction work and shortening the construction period while ensuring the connection strength between the anchor block and the water pipeline. The prefabricated well body reduces the height of the underground space, eliminating the need for any downhole facilities, thus reducing costs and facilitating maintenance operations by personnel directly on the ground, saving time and effort.

[0048] 4) In this invention, the underground air valve well is connected to the adjacent above-ground air valve well by a straight gas pipeline to establish a gas transmission channel. The straight gas pipeline and the water pipeline are arranged in parallel and share the same tunnel. Therefore, there is no need to excavate a separate tunnel on the ground, which greatly shortens the construction period and saves construction costs.

[0049] 5) The present invention uses a light warning device in the above-ground air valve well to achieve the purpose of reminder and warning, so as to avoid people or animals from approaching and being affected by the exhaust. At the same time, a positioning device is used in the underground air valve well to achieve the purpose of positioning, so that maintenance personnel can locate the position of the underground air valve well in time for routine maintenance.

[0050] 6) In this invention, a turbine generator capable of generating electricity from exhaust gas is used to power the light warning device and the positioning device, eliminating the hassle of connecting to the municipal power grid.

[0051] 7) In this invention, a water leakage detection device is used to detect whether the air vent valve is faulty, so that the fault can be eliminated in time and the water in the well can be drained. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention;

[0053] Figure 2 for Figure 1 A three-dimensional view of the structure of the second and third air valve wells in the water transmission line in the illustrated embodiment;

[0054] Figure 3 for Figure 2 The top view of the structure of the second and third air valve wells is shown;

[0055] Figure 4 for Figure 3 Structural sectional view along the AA direction;

[0056] Figure 5 This is a three-dimensional view of the structure of the third air valve well at the exhaust node in this invention;

[0057] Figure 6 for Figure 5 The diagram shows a top view of the third air valve well.

[0058] Figure 7 for Figure 6Structural sectional view along the BB direction;

[0059] Figure 8 for Figure 7 A structural sectional view along the CC direction;

[0060] Figure 9 for Figure 1 The diagram shows a three-dimensional view of the structure of the pier in the embodiment shown.

[0061] Figure 10 for Figure 9 The exploded view of the structure of the pier shown is shown.

[0062] Figure 11 for Figure 1 A perspective view of the turbine generator used to power the positioning device in the illustrated embodiment;

[0063] Figure 12 for Figure 11 A cross-sectional view of the turbine power generation device shown.

[0064] Figure 13 for Figure 1 The diagram shows a three-dimensional view of the structure of the second air valve well at the exhaust node in the embodiment shown.

[0065] Figure 14 for Figure 13 The diagram shows a cross-sectional view of the second air valve well.

[0066] Figure 15 for Figure 1 A perspective view of the structure of the light warning device and its turbine power generation device in the illustrated embodiment;

[0067] Figure 16 for Figure 15 A structural side view of the light warning device and its turbine power generation device shown;

[0068] Figure 17 for Figure 16 Structural cross-sectional view along the DD direction;

[0069] Figure 18 for Figure 1 A three-dimensional view of the structure of the first air valve well at the exhaust node in the embodiment shown;

[0070] Figure 19 for Figure 11 System block diagram of the positioning device;

[0071] Figure 20 This is a schematic diagram illustrating the application of the optical signal detection device in this invention;

[0072] Figure 21 for Figure 20 The diagram shows the principle of the optical signal detection device in the absence of water leakage.

[0073] Figure 22 for Figure 20 The diagram shows the principle of the optical signal detection device when there is a water leak. Detailed Implementation

[0074] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0075] like Figures 1-19 As shown, this embodiment discloses a dual-pipeline water supply system, including two parallel water supply pipelines 100 in the same direction. An air valve well is provided at each venting node of the water supply pipeline 100, and an air valve 200 is installed in each air valve well.

[0076] According to the line design requirements, air valve wells are divided into three categories: the first air valve well 600, the second air valve well 300, and the third air valve well 400. The first air valve well 600 is an above-ground well, with direct exhaust in place. The second air valve well 300 is also an above-ground well, with direct exhaust in place, but it is located on the periphery of a special area and receives exhaust from the third air valve well 400. The third air valve well 400 is an underground well, with indirect exhaust via a nearby second air valve well. Both the second air valve well 300 and the third air valve well 400 have air supply pipe connector assemblies, such as... Figures 1-4 As shown, when farmland 700 exists in the line, in order to ensure that the construction will not affect farmland 700 itself, a third air valve well 400 is set at the exhaust node within the farmland 700 range. The gas discharged from this node is led to an adjacent node outside the farmland 700 range by the buried pipeline, i.e., the gas transmission straight pipe 500, and the gas is exhausted by the second air valve well 300 at that node.

[0077] To further reduce engineering excavation and concrete usage, this invention improves the construction of the air valve well, such as... Figure 5 , 13 As shown in Figure 18, the first air valve well 600, the second air valve well 300 and the third air valve well 400 each have: a pier 1, a prefabricated well body 2 and a well cover device 3.

[0078] Pier 1 serves as infrastructure, used to secure the water pipeline 100. Precast well body 2 houses the air valve 200 and is fixedly installed on top of pier 1. The assembly of precast well body 2 and pier 1 is as follows: a flange structure 2.1 is provided on the bottom periphery of precast well body 2; the top surface of the second precast pier body 1.2 has pre-drilled mounting holes matching the connection holes on the flange structure 2.1. After aligning the precast well bodies 2, chemical anchors are inserted into the mounting holes. After the anchors are fixed, nuts are used to secure the two together. During construction, the contact points are treated to meet waterproofing requirements. The wellheads 2.2 of the precast well bodies 2 for the first air valve well 600 and the second air valve well 300 are both above ground level to prevent surface water from seeping into the wells and damaging the equipment. The wellhead 2.2 of the third air valve well 400 is buried underground, so that backfilling will not occupy farmland 700.

[0079] The manhole cover device 3 is used to open and close the manhole opening 2.2, and is installed at the manhole opening 2.2. Since the first air valve well 600 and the second air valve well ventilate directly from their original locations, both the cover of the first air valve well 600 and the cover of the second air valve well 300 are equipped with vents for connecting to the vent bend 4. The manhole cover device 3 has a built-in lock; operators must unlock it with a key to open the cover for operation. After operation, the cover must be closed to prevent damage to the equipment inside the well. As shown in the diagram, the outlet end of the vent bend 4 faces downwards to prevent external objects from entering the pipe.

[0080] like Figure 5 , 6 As shown in Figure 8, the gas transmission pipe connector assembly includes a gas transmission tee head pipe 9, a well chamber exhaust pipe 10, and an intermediate connector 8. The gas transmission tee head pipe 9 is prefabricated in the retaining wall 1 of both the second and third air valve wells (300 and 400). The gas transmission tee head pipe 9 has two coaxial pipe ends 9.1 and a vertical pipe end 9.2. The coaxial pipe ends 9.1 extend from the front and rear sides of the retaining wall 1, respectively, while the vertical pipe end 9.2 extends from the top of the retaining wall 1. Similarly, the well chamber exhaust pipe 10 is prefabricated on the prefabricated well body 2 of both the second and third air valve wells (300 and 400), and has an outer pipe end extending outwards. The intermediate connector 8 is a tee connector with three connecting pipe ends that connect to the vertical pipe end 9.2 and the outer pipe end, respectively. Two of the coaxial connecting pipe ends are used to connect to the outer pipe end of the well chamber exhaust pipe 10, and the other connecting pipe end is used to connect to the vertical pipe end 9.2. To prevent gas backflow, a check valve 15 is installed between the two coaxial connecting pipe ends of the intermediate joint and the outer pipe end of the well chamber exhaust pipe 10.

[0081] It should be noted that if the area of ​​farmland 700 is large, requiring at least two third air valve wells 400, all third air valve wells 400 shall be connected in series using straight gas transmission pipes 500. A third air valve well 400 located at one end of the line within the farmland 700 coverage area shall be connected to an adjacent second air valve well 300 located outside the farmland 700 using a straight gas transmission pipe 500. It is understood that a coaxial pipe head 9.1 on the third air valve well 400 at the other end of the line within the farmland 700 coverage area is unconnected and requires a baffle to seal it. Similarly, a coaxial pipe head 9.1 on the second air valve well 300 is also unconnected and requires a baffle to seal it as well.

[0082] The anchor block 1 includes a first precast anchor block body 1.1, a second precast anchor block body 1.2, and a concrete filling body 1.3.

[0083] like Figure 9 and 10 As shown, since the water supply system is a dual-pipeline system, the anchor 1 has a double-hole structure to accommodate two water supply pipes 100. The first precast anchor body 1.1 is located at the bottom of the tunnel, and its top surface is provided with a first pouring groove. The second precast anchor body 1.2 is fixedly located above the first precast anchor body 1.1, and its bottom surface is provided with a second pouring groove that matches the first pouring groove. Its top surface is provided with a pouring hole 1.25, a discharge hole 1.26, and a through-hole 1.24 that connect to the second pouring groove. The inner diameter of the through-hole 1.24 is larger than the outer diameter of the tee pipe head 100.1 at the venting node, and a packing seal is provided at this end. After the second precast anchor body 1.2 is fixed to the first precast anchor body 1.1, the first pouring groove and the second pouring groove form a complete pouring cavity.

[0084] like Figure 10 As shown, in order to accommodate and fix the water supply pipe 100 to it, thus fulfilling the function of the anchor 1, the first casting groove in this example has two first stepped half-holes 1.12 and a first connecting groove 1.13. The diameter of the middle part of the first stepped half-hole 1.12 is larger than the outer diameter of the water supply pipe 100, and the inner diameter of its two ends matches the outer diameter of the water supply pipe 100. The two ends of the first connecting groove 1.13 are respectively connected to the middle positions of the two first stepped half-holes 1.12.

[0085] Based on the same principle, the second pouring trough has two second stepped half-holes 1.22 and a second connecting trough 1.23. The diameter of the middle portion of the second stepped half-hole 1.22 is larger than the outer diameter of the water supply pipe 100, while the inner diameter of its two ends matches the outer diameter of the water supply pipe 100. The two ends of the second connecting trough 1.23 are respectively connected to the middle positions of the two second stepped half-holes 1.22. The first connecting trough 1.13 and the second connecting trough 1.23, when combined, form a connecting channel for the flow of fine sand concrete within the pouring cavity.

[0086] It should be noted that the distance between the discharge hole 1.26 and the pouring hole 1.25 should be as far apart as possible to ensure that every gap inside is filled as much as possible when pouring fine sand concrete. The number of discharge holes 1.26 is not unique. When concrete overflows from a discharge hole 1.26, it should be sealed until concrete overflows from all discharge holes 1.26, indicating that the interior is completely filled.

[0087] Furthermore, based on the actual situation, the length of the middle part of both the first step half-hole 1.12 and the second step half-hole 1.22 is 1 / 8 to 1 / 7 of the overall length of the hole, and their inner diameter is 1.2 to 1.3 times the outer diameter of the water supply pipe 100.

[0088] As shown in the figure, after the two precast anchor blocks and the water supply pipe 100 are in place, the first stepped half-hole 1.12 and the second stepped half-hole 1.22 form a complete stepped hole, and the two connecting grooves also form a complete casting channel. The end of the stepped hole directly contacts the outer wall of the water supply pipe 100, while the middle part, due to its larger inner diameter, forms an annular casting cavity with the outer wall of the water supply pipe 100. The concrete filler 1.3 is formed as follows: after the precast anchor blocks and the water supply pipe 100 are in place, the filler is first used to seal the pipe hole 1.24, and then the pre-mixed fine sand concrete is poured into the casting cavity through the casting hole 1.24. The fine sand concrete enters the casting cavity from one side of the casting cavity through the casting channel and enters the other side of the casting cavity until fine sand concrete flows out of the discharge hole, at which point the pouring stops, and finally it is allowed to solidify to form the concrete filler 1.3. The two precast anchor bodies are connected into an integral anchor 1 using the formed concrete filler 1.3, and at the same time, it is fixedly connected to the water supply pipe 100.

[0089] like Figure 10As shown, in order to quickly and accurately position and align the two prefabricated piers when placing them, so that the tee head 100.1 of the water supply pipeline 100 can extend from the through hole 1.24, the top surface of the first prefabricated pier 1.1 is provided with two first positioning structures 1.11, and the bottom surface of the second prefabricated pier 1.2 is provided with two second positioning structures 12.1 that match the first positioning structures 1.11 one by one. The height of both the first positioning structures 1.11 and the second positioning structures 12.1 is greater than the length of the through hole 1.24. In this way, before the tee head 100.1 passes through the through hole 1.24, the positioning structure completes the positioning connection of the two prefabricated piers, preventing the tee head 100.1 from being unable to enter the through hole 1.24 due to misalignment. As a specific positioning structure, the first positioning structure 1.11 is a positioning post protruding from the surface, while the second positioning structure 12.1 is a positioning groove recessed into the surface. It can be seen that the two can also be interchanged. The two positioning mechanisms are shaped to match each other, thus achieving the positioning connection of the two precast piers after assembly. They also enhance axial fixing force and prevent displacement.

[0090] To facilitate the assembly of the tee fitting 100.1, the through hole 1.24 is a tapered hole with a smaller inner diameter at the top and a larger inner diameter at the bottom. The purpose of this structure is that during pouring, some fine sand concrete will enter the cavity between the through hole 1.24 and the outer wall of the tee fitting 100.1, thereby forming a sealed connection at this point. This prevents water accumulation in the well from seeping downwards through this point, thus improving the waterproofing capability of the anchor block.

[0091] In order to provide support for the gas transmission straight pipe 500, a bracket 800 is also provided between the two water transmission pipes 100. The bracket 800 has a through hole in the center for the gas transmission straight pipe 500 to pass through and provide support.

[0092] Since the ventilated water pipe will continuously discharge gas during the water conveyance process, in order to prevent people or animals from getting close and being harmed by the airflow, the present invention is also equipped with a light warning device 5 and a turbine generator 11.

[0093] like Figures 15-17As shown, the turbine generator 11 includes a mounting ring 11.1, a turbine 11.6, a generator mechanism 11.3, and a gear mechanism 11.5. The mounting ring 11.1 is installed inside the outlet end of the venting bend 4, and a mounting sleeve 11.7 is fixed to the center of the mounting ring 11.1 via four support arms 11.2. The turbine 11.6 is rotatably mounted on the mounting sleeve 11.7 via a rotating shaft 11.4. Two generator mechanisms 11.3 are symmetrically arranged inside the mounting ring 11.1 to prevent power generation failure in case of malfunction and are connected in parallel to the control circuit. The gear mechanism 11.5 connects the rotating shaft 11.4 and the main shaft of the generator mechanism 11.3. The gear mechanism 11.5 includes a large gear mounted on the rotating shaft 11.4 and a small gear mounted on the main shaft of the generator mechanism 11.3, with a gear ratio of 1:1 to 2:1. The diameter of the turbine 11.6 is smaller than the inner diameter of the venting bend 4, thus forming an annular channel between them for air outlet.

[0094] The light warning device 5 includes a light-emitting element 5.2 and a reflecting lens 5.1. Multiple light-emitting elements 5.2 are provided and are fixedly installed on the inner wall of the mounting ring 11.1 in a circumferentially evenly distributed manner. The light-emitting elements 5.2 are connected to the control circuit and are powered by the power generation mechanism 11.3 to emit light. The light-emitting elements 5.2 use LED beads. The above technical principle is the same as the working principle of a hand-cranked flashlight and is existing technology, so it will not be described in detail.

[0095] The reflecting lens 5.1 is located below the mounting ring 11.1 and outside the vent bend 4, with its central axis fixedly connected to the bottom of the rotating shaft 11.4. The reflecting lens 5.1 is a hollow spherical body with a central axis. The inner wall of its spherical portion has multiple reflecting surfaces 5.13 at different angles to reflect light. The outer wall of the spherical portion of the reflecting lens 5.1 has a light-transmitting surface 5.12 and an opaque surface 5.11, which can each occupy half, or the light-transmitting surface 5.12 can occupy 3 / 4 of the surface area. Figure 17As shown, specifically, the opaque surface 5.11 is formed by applying a light-shielding coating or tape to the outer wall of the reflective lens 5.1, causing specular reflection when light shines on the reflective surface 5.13 on its inner wall, thus allowing light to exit through the transparent surface 5.12. In other words, the reflective lens 5.1 does not emit light in 360°, thus creating a periodic flashing effect as the turbine 11.6 rotates continuously, serving as a warning. It should be noted that in low illumination or at night, the warning effect is mainly achieved through the light emitted by the light source 5.2, while in high illumination during the day, the warning effect is mainly achieved through the emission of sunlight. As the working principle of the light warning device shows, its required electrical energy comes from the rotation of the turbine 11.6, requiring no external power grid. Furthermore, the turbine 11.6 and gears are all made of plastic, making them inexpensive and easy to install and maintain. The main function of the light warning device is to provide a warning effect in low illumination or at night, preventing people or animals from approaching. As can be seen, compared to traditional rotating warning lights, this type of warning light does not require a motor drive; it achieves its rotating flashing effect by using airflow to rotate a turbine. Furthermore, compared to non-rotating warning lights, it can reflect sunlight during the day, providing an all-weather warning effect.

[0096] To further prevent foreign objects from entering, a protective net 6 is also installed at the outlet end of the ventilation bend 4.

[0097] To reduce noise during exhaust, the outer wall of the vent bend 4 is wrapped with a layer of sound-absorbing material to prevent adverse effects on surrounding residents due to exhaust noise in water supply projects near towns. It should be noted that the need for noise reduction treatment depends on the location of the water supply pipeline. In remote areas far from cities, noise reduction treatment may not be necessary; otherwise, it is required.

[0098] Because the third air valve well 400 is buried underground, in order to quickly locate its position during maintenance, the third air valve well 400 is also equipped with a turbine generator 11 and a positioning device 12 powered by the turbine generator 11 for positioning. The turbine generator 11 is installed at one end of the exhaust pipe 10 inside the well chamber of the third air valve well 400, and the positioning device 12 is installed at the center of the bottom of the well cover 3. Figure 11 and 12 As shown, the positioning device 12 includes: a positioning module, a main control module, a communication module, a storage module, a buzzer module, and a power supply module; the positioning module, the communication module, the buzzer module, and the storage module are all electrically connected to the main control module, and the power supply module supplies power to the entire device.

[0099] like Figures 20-22As shown, the positioning module generates positioning signals; the main control module receives positioning signals from the positioning module; the communication module receives and sends information; the storage module stores information; and the power supply module stores electrical energy generated by the turbine generator 11 and supplies power to the positioning device 12. All modules and their connections are existing technologies and will not be elaborated upon. During normal operation of the water conveyance system, the positioning module records location information in real time and stores it in the storage module. The main control module retrieves the location information and sends it to the network via the communication module for maintenance personnel to access. When maintenance is required, maintenance personnel determine the approximate location of each third air valve well 400 based on the location information. Upon reaching the location, a control command is used to activate the buzzer module, causing a continuous beeping sound, thus enabling the maintenance personnel to pinpoint the location.

[0100] It should be noted that the mounting ring 11.1 in the turbine power supply device that supplies power to the light alarm device is installed and fixed with a tight fit, while the mounting ring 11.1 in the turbine power supply device that supplies power to the positioning device is provided with a flange structure, so that it is installed at the end of the pipe head.

[0101] Because the air vent valve may malfunction during operation, water in the water supply pipeline 100 may leak into the prefabricated well body 2, causing water accumulation inside the well. Therefore, it is necessary to investigate the situation inside the well and promptly detect any abnormalities to prevent damage to the equipment inside the well from prolonged immersion in water and to avoid affecting the operation of the entire water supply line. To this end, the present invention also includes a leakage detection device; the leakage detection device is installed at the bottom of the prefabricated well body 2, allowing maintenance personnel to easily detect leaks in a timely manner. Depending on the type of air valve well, the present invention employs two types of leakage detection devices: an electrical signal detection device and an optical signal detection device.

[0102] like Figure 21 As shown, the leakage detection devices in the first air valve well 600 and the second air valve well 300 are optical signal detection devices. The curved section of the ventilation bend 4 of both is equipped with a detection tube 4.1 facing the optical signal detection device, and a transparent cover 4.2 is installed at the top of the detection tube 4.1. The optical signal detection device includes a housing 14 and an isosceles right-angled total internal reflection prism 13. The isosceles right-angled total internal reflection prism 13 is fixed in the housing 14 with its right angle pointing downwards and its hypotenuse parallel. The isosceles right-angled total internal reflection prism 13 should be vertically aligned with the detection tube 4.1 to facilitate the establishment of the optical path. Maintenance personnel regularly inspect each air valve well along the line according to the daily maintenance plan, such as... Figure 22As shown, for the first air valve well 600 and the second air valve well 300, maintenance personnel use a portable laser pointer to vertically shine a laser beam into the well at the marked position on the transparent cover 4.2. When there is no leakage in the well, there is no water accumulation in the container 14. At this time, the laser beam enters the isosceles right-angled total internal reflection prism 13, undergoes total internal reflection, and exits from the other side parallel to the incident light, forming a light spot 4.3 on the transparent cover 4.2. Conversely, if... Figure 8 As shown, if a leak occurs in the well, there will inevitably be water in the container 14. When the laser is injected, the outer side of the right-angled side of the isosceles right-angled total internal reflection prism 13 will be in a water environment. Therefore, the laser will not undergo total internal reflection in the isosceles right-angled total internal reflection prism 13 and cannot return along its original path. At this point, the light spot 4.3 will not be visible on the transparent cover 4.2. The presence of a leak in the well can be determined using the laser reflection pattern. This process can be completed without opening the well cover, is simple, and yields accurate and reliable results.

[0103] It should be noted that the purpose of the containment box 14 is to retain a portion of the accumulated water. If the right-angled total internal reflection prism 13 were directly fixed to the well without the containment box 14, and drainage were carried out via the drain pipe 17, water would flow into the groundwater layer in the event of a leak. In this case, when maintenance personnel irradiate the well with a laser, the laser beam would still return along its original path, creating the false impression that no leak has occurred, leading to a misjudgment. However, with the containment box 14, regardless of whether the water in the well is drained, a portion of water will remain in the containment box 14. Therefore, when the laser beam is irradiated, it will not return along its original path, thus preventing misjudgment.

[0104] like ​ As shown, the water leakage detection device in the third air valve well 400 is an electrical signal detection device 16, also known as a water immersion sensor. The water immersion sensor is electrically connected to the control module and is powered by the turbine generator 11. When a leak occurs, the accumulated water will submerge the water immersion sensor and send an electrical signal to the control module. The control module then sends this signal to the maintenance personnel through the communication module, informing them of the current situation, thereby achieving the purpose of timely troubleshooting and drainage of accumulated water.

[0105] It is known that, in order to achieve more timely fault warnings for the entire line, the leakage detection devices in the three types of exhaust valve wells can all be electrical signal detection devices 16, which will not be elaborated here.

[0106] Regardless of the type of air valve well, any leak caused by a malfunctioning air valve requires inspection of the air valve and drainage of the water inside the well. Drainage can be achieved in two ways: one is by having maintenance personnel carry pumping equipment, such as a water pump, to remove the water; the other is by installing a drain pipe 17 on the prefabricated well body, with the other end extending underground to drain the water into the ground. The first method requires no additional investment or structural changes to the project itself, but because the frequency of maintenance and drainage is determined by the daily inspection plan, it has a certain lag. The second method requires the addition of a drain pipe 17, increasing investment, but it allows water to be drained into the groundwater layer immediately after a leak, preventing prolonged immersion of the equipment inside the well before maintenance personnel arrive.

[0107] This invention only improves the structure, installation method, and installation location of the air valve well; therefore, any parts not mentioned should be considered prior art.

[0108] The construction process of this air valve well mainly consists of three steps:

[0109] Step 1: Excavate a foundation pit on the ground according to the design requirements. The foundation pit is 3.42m deep, and mark the positioning points.

[0110] Step 2: Place the first precast anchor 1.1 into the foundation pit according to the marked positioning point, then set up the water supply pipe 100, then place the second precast anchor 1.2 into the position, and finally pour fine sand concrete into the pouring hole 1.25. After the concrete has solidified, the water supply pipe 100 and the anchor 1 are connected as one.

[0111] Step 3: Install the air valve 200 at the end of the tee head 100.1, and then fix the prefabricated well body 2, which is pre-installed with the well cover device 3 and the vent bend 4, on the top of the corresponding pier 1.

[0112] Part Four: Connect the other pipes into place, and finally backfill and compact the foundation pit to ensure that the underground part of the precast well body 2 is no less than 1.5m high. At this point, the entire water conveyance system construction is complete.

[0113] Actual construction calculations show that the excavation volume in this invention is reduced by 10%-20%, and the design and construction costs are reduced by more than 20% compared to rerouting and avoidance methods. Specifically, compared to conventional concrete wells, the air valve well, by setting a cavity well body at the air valve, reduces concrete usage by 50%-70%. Furthermore, the prefabricated structure is simple, the manufacturing and installation cycle is fast, and it can be directly installed on-site, retaining only one cast-in-place process, greatly reducing construction costs and time. In addition, this air valve well reduces the amount of excavation and land occupation without changing the original valve well structure and function. Later maintenance is convenient, reducing maintenance space; operators do not need to go down into the well, and can operate the air valve from the ground, saving time and labor.

[0114] Any aspects of this invention not described in detail are well-known to those skilled in the art.

[0115] In the description of this invention, it should be understood that the terms "upper," "lower," "left," and "right," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or a specific orientational structure and operation. Therefore, they should not be construed as limitations on the invention. Furthermore, "first" and "second" are only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0116] In the description of this invention, unless otherwise stated, "a plurality of" means two or more. It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0117] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A water conveyance system capable of reducing construction excavation, comprising a water conveyance pipeline (100), a plurality of air valve wells disposed at each venting node of the water conveyance pipeline (100), and an air valve (200) installed in each air valve well; characterized in that: It also includes a gas transmission straight pipe (500); the air valve well is divided into: a first air valve well (600), a second air valve well (300) and a third air valve well (400); The first air valve well (600) and the second air valve well (300) each have a ventilation bend (4) extending above the ground. The second air valve well (300) and the third air valve well (400) each have a gas supply pipe connector assembly. The third air valve well (400) is buried underground, and its gas supply pipe connector assembly is connected to the gas supply pipe connector assembly of the adjacent second air valve well (300) or to the gas supply pipe connector assembly of the adjacent third air valve well (400) via a gas supply straight pipe (500). The first air valve well (600), the second air valve well (300), and the third air valve well (400) each have: A retaining block (1) for fixing the water supply pipeline (100); A prefabricated well body (2) for accommodating an air valve (200) is fixedly installed on the top of the pier (1). The wellhead (2.2) of the prefabricated well body (2) of the first air valve well (600) and the wellhead (2.2) of the prefabricated well body (2) of the second air valve well (300) are set to extend out of the ground. The wellhead (2.2) of the prefabricated well body (2) of the third air valve well (400) is buried underground. The well cover device (3) is used to open and close the well opening (2.2). The well cover device (3) is installed at the well opening (2.2). The cover body of the well cover device (3) of the first air valve well (600) and the cover body of the well cover device (3) of the second air valve well (300) are both provided with vents that connect to the vent bend (4). The gas pipeline connector assembly includes: Gas transmission tee head pipe (9), the gas transmission tee head pipe (9) is prefabricated in the pier (1) of the corresponding air valve well, and has two coaxial pipe heads (9.1) and a vertical pipe head (9.2). Well chamber exhaust pipe (10), the well chamber exhaust pipe (10) is prefabricated on the prefabricated well body (2) of the corresponding air valve well, and has an outer pipe head extending out of the well; Intermediate connector (8), the intermediate connector (8) having connecting pipes that connect the vertical pipe head (9.2) and the outer pipe head respectively.

2. The water conveyance system according to claim 1, which reduces construction excavation, is characterized in that: The town mound (1) includes: The first precast pier (1.1) has a first casting groove on its top surface; The second precast anchor body (1.2) is fixedly installed above the first precast anchor body (1.1). Its bottom surface is provided with a second casting groove that matches the first casting groove, and its top surface is provided with a casting hole (1.25), a discharge hole (1.26) and a through hole (1.24) that connect to the second casting groove. The inner diameter of the through hole (1.24) is larger than the outer diameter of the tee pipe head (100.1) at the exhaust node. The concrete filler (1.3) is fixedly disposed in the cavity between the first pouring trough, the second pouring trough and the water supply pipe (100).

3. The water conveyance system according to claim 2, which reduces construction excavation, is characterized in that: The first casting tank has: One or two first stepped half-holes (1.12), wherein the diameter of the middle part of the first stepped half-hole (1.12) is larger than the outer diameter of the water supply pipe (100), and the inner diameter of the two ends of the first stepped half-hole (1.12) matches the outer diameter of the water supply pipe (100); When there are two first stepped half-holes (1.12), the first connecting groove (1.13) connects the two first stepped half-holes (1.12). The second casting tank has: One or two second stepped half-holes (1.22), the diameter of the middle part of the second stepped half-hole (1.22) is larger than the outer diameter of the water supply pipe (100), and the inner diameter of the two ends of the second stepped half-hole (1.22) matches the outer diameter of the water supply pipe (100); When there are two second stepped half-holes (1.22), the second connecting groove (1.23) connects the two second stepped half-holes (1.22).

4. The water conveyance system according to claim 3, which reduces construction excavation, is characterized in that: The top surface of the first precast pier (1.1) is provided with at least two first positioning structures (1.11), and the bottom surface of the second precast pier (1.2) is provided with at least two second positioning structures (12.1) that match the first positioning structures (1.11) one by one. The height of the first positioning structure (1.11) and the second positioning structure (12.1) is greater than the length of the through hole (1.24).

5. The water conveyance system according to claim 3, which reduces construction excavation, is characterized in that: The length of the middle portion of the first stepped half-hole (1.12) and the second stepped half-hole (1.22) is 1 / 8 to 1 / 7 of the overall length of the hole, and their inner diameters are 1.2 to 1.3 times the outer diameter of the water supply pipe (100).

6. The water conveyance system according to claim 3, which reduces construction excavation, is characterized in that: The first air valve well (600) and the second air valve well (300) are also provided with a turbine generator (11) that can generate electricity by being driven by the gas in the ventilation bend and a light warning device (5) that is powered by the turbine generator (11) and emits light. The turbine generator (11) and the light warning device (5) are installed at the air outlet of the ventilation bend (4). The third air valve well (400) is also equipped with a turbine generator (11) that can generate electricity by being propelled by the gas inside the well, and a positioning device (12) powered by the turbine generator (11) to achieve positioning. The turbine generator (11) is installed at one end of the well chamber exhaust pipe (10) inside the well, and the positioning device (12) is installed at the center of the bottom of the well cover device (3).

7. The water conveyance system according to claim 6, which reduces construction excavation, is characterized in that: The turbine power generation device (11) includes: Mounting ring (11.1), the center of which is fixed with mounting sleeve (11.7) by a plurality of support arms (11.2). A turbine (11.6) is rotatably mounted on the mounting sleeve (11.7) via a shaft (11.4); A power generation mechanism (11.3) is fixedly installed inside the mounting ring (11.1); A gear mechanism (11.5) connects the rotating shaft (11.4) and the main shaft of the power generation mechanism (11.3); The light warning device (5) includes: The light source (5.2) is fixedly installed on the inner wall of the mounting ring (11.1) of the corresponding turbine power generation device (11) and is powered by the turbine power generation device (11); A reflective lens (5.1) is located below the mounting ring (11.1) of the corresponding turbine generator (11) and is fixedly connected to the bottom of the rotating shaft (11.4) of the turbine generator (11); the outer wall of the reflective lens (5.1) is provided with a light-transmitting surface (5.12) and an opaque surface (5.11). The positioning device (12) includes: a positioning module, a main control module, a communication module, a buzzer module, and a power supply module; The positioning module, communication module, and buzzer module are all electrically connected to the main control module, and the power supply module supplies power to the entire device.

8. The water conveyance system according to claim 7, characterized in that: It also includes a leakage detection device; the leakage detection device is installed at the bottom of the prefabricated well body (2); the leakage detection device is an electrical signal detection device or an optical signal detection device; The leakage detection device in the first air valve well (600) and the second air valve well (300) is a light signal detection device. The bend section of the ventilation bend (4) of both is provided with a detection tube (4.1) facing the light signal detection device. The top of the detection tube (4.1) is provided with a transparent cover (4.2). The leakage detection device in the third air valve well (400) is an electrical signal detection device and is powered by the turbine generator (11).

9. The water conveyance system according to claim 1, characterized in that: The air outlet of the ventilation bend (4) is provided with a protective net (6); the outer wall of the ventilation bend (4) is wrapped with a layer of sound-absorbing material.

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