Drainage device for air valve well

Abstract

The utility model provides a drainage device for air valve wells. The drainage device comprises a plurality of air valve wells and air valves, wherein the air valve wells are arranged at exhaust nodes of a water conveying pipeline; the air valves are mounted on the water conveying pipeline in the air valve wells; the water storage well is arranged at the air valve well; the siphon is connected with the air valve well and the water storage well; the height of the bottom of the water storage well is smaller than that of the bottom of the air valve well, the height of a water outlet of the siphon is smaller than that of a water inlet of the siphon, and the height of the highest position of a siphon body is smaller than that of a flange of the air valve. The water storage well is arranged on one side of an original air valve well, water in the air valve well is sucked into the water storage well according to the siphon principle, so that the risk that an air valve is soaked is reduced, meanwhile, leaked water is stored for later use through the water storage capacity of the water storage well, and waste is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of long-distance water delivery systems, and in particular relates to a drainage device for an air valve well. Background Art

[0002] like Figure 1 As shown, air valve wells are the most commonly used wells in long-distance water supply systems. Air valves should be installed at the starting point of the pipeline convex point. For long-distance water supply pipelines without convex starting points, air valves should be installed every 1 km.

[0003] During the operation of the system, the air valve may fail due to a malfunction, causing pipeline leakage. Once this happens, it is necessary to manually pump water on site and then repair the air valve. However, the actual situation is that some air valve wells are located in remote areas, and maintenance personnel may not be able to arrive at the site in time, so the leakage time will be prolonged, so that the water level in the well exceeds the air valve, which brings inconvenience to maintenance. Summary of the invention

[0004] The object of the present invention is to provide a drainage device for an air valve well, which can control the water level in the air valve well to be below the height of the air valve as much as possible, thereby facilitating maintenance.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a drainage device for an air valve well, comprising a plurality of air valve wells arranged at each exhaust node of a water delivery pipeline and an air valve installed on the water delivery pipeline in each air valve well; further comprising a water storage well arranged at the air valve well and a siphon connecting the air valve well and the water storage well;

[0006] The bottom height of the water storage well is less than the bottom height of the air valve well, the water outlet height of the siphon pipe is less than the water inlet height, and the highest point height of the pipe body is less than the flange height of the air valve.

[0007] Furthermore, a seepage and drainage pipe is provided at the bottom of the air valve well.

[0008] Furthermore, a vertical shaft is provided at the top of the water storage well, a wellhead A of the vertical shaft is provided with a water storage well inspection cover, and an exhaust pipe is provided on the water storage well inspection cover; and an air valve well inspection cover is provided at the wellhead B of the air valve well.

[0009] Furthermore, the top plate of the water storage well and the bottom plate of the air valve well are at the same height.

[0010] Furthermore, it also includes a ventilation pipe, which connects the air valve shaft and the vertical shaft, and the height of the ventilation pipe is greater than the highest point height of the siphon pipe.

[0011] Furthermore, ladders are provided on the walls of the air valve shaft and the vertical shaft.

[0012] Furthermore, it also includes a float, a pendant and a pull rope, wherein the float is arranged in the water storage well, and the pendant is arranged below the pipe opening of the exhaust pipe and is connected to the float through the pull rope.

[0013] Furthermore, a protective net is provided at the pipe opening of the exhaust pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1) The present invention sets a water storage well on one side of the original air valve well, and uses the siphon principle to pump water in the air valve well into the water storage well, thereby reducing the risk of the air valve being soaked. At the same time, the water storage capacity of the water storage well is used to store the leaked water for later use, thereby reducing waste.

[0016] 2) The present invention transfers the exhaust pipe originally arranged on the manhole cover of the air valve well to the manhole cover of the vertical shaft, which can facilitate the opening of the manhole cover of the air valve well.

[0017] 3) The present invention can discharge the remaining accumulated water in the air valve well into the ground through the seepage drainage pipe, so that no water is left in the air valve well.

[0018] 4) The present invention facilitates water collectors to more intuitively and reliably learn about the water volume in the water storage well through the lifting and lowering of the float and the pendulum. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an air valve well in the prior art;

[0020] Figure 2 It is a structural schematic diagram of a preferred embodiment of the present invention;

[0021] Figure 3 for Figure 1 A top view of the structure of the illustrated embodiment;

[0022] Figure 4 for Figure 1 A schematic diagram of the structure of the embodiment shown in FIG. 1 during normal exhaust (the arrows in the figure indicate the direction of airflow);

[0023] Figure 5 for Figure 1 The illustrated embodiment is a schematic structural diagram of faulty drainage (arrows in the figure indicate the direction of water flow). DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] like Figures 1 to 5 As shown, this embodiment is improved on the basis of the original air valve well 1, and the air valve well 1 includes an air valve 5 installed on the water pipeline 3 in the air valve well 1. The air valve well 1 is cast with concrete, and the water pipeline 3 is cast in the air valve well 1 to be fixed. As an improvement, a water storage well 2 is set on one side of the air valve well 1, and the water storage well 2 is also cast with concrete. A siphon 6 is pre-buried between the air valve well 1 and the water storage well 2. The volume of the water storage well 2 is determined according to actual needs. As a preferred example, the length of the water storage well 2 is 4200mm, the width is 7600mm, the height is 2000mm, and the wall thickness is 300mm.

[0026] The bottom height of the water storage well 2 is lower than the bottom height of the air valve well 1, the outlet height of the siphon pipe 6 is lower than the inlet height, and the highest point of the pipe body is lower than the flange height of the air valve 5. In this way, the accumulated water in the air valve well 1 can be sucked into the water storage well 2 by using the siphon principle. Since the highest point of the siphon pipe 6 is lower than the flange of the air valve 5, the water level in the air valve well 1 will not exceed the flange of the air valve 5, thereby preventing the air valve 5 from being soaked. Since the water storage well 2 has a large capacity, it can provide enough time for maintenance personnel to rush to the fault site.

[0027] As a preferred example, the top plate of the water storage well 2 is at the same height as the bottom plate of the air valve well 1. In this way, the bottom plate of the air valve well 1 and the top plate of the water storage well 2 can be cast together during construction.

[0028] Since there is a 50mm gap between the water inlet of the siphon pipe 6 and the bottom of the air valve well 1, the accumulated water in the air valve well 1 cannot be sucked into the water storage well 2 by the siphon effect alone. Therefore, as a preferred example, a seepage and drainage pipe 7 is provided at the bottom of the air valve well 1. The remaining accumulated water in the air valve well 1 will be discharged into the ground through the seepage and drainage pipe 7 to ensure that there is no water in the well. Multiple seepage and drainage pipes 7 are provided according to actual conditions.

[0029] As a preferred example, a vertical shaft 10 is provided at the top of the water storage well 2, and a water storage well inspection cover 12 is provided at the wellhead A11 of the vertical shaft 10, and an exhaust pipe 13 is provided on the water storage well inspection cover 12; an air valve well inspection cover 9 is provided at the wellhead B8 of the air valve well 1. Obviously, the gas discharged from the air valve 5 will enter the water storage well 2 through the siphon 6, and then be discharged to the external environment through the exhaust pipe 13. Since the exhaust pipe 13 is transferred from the air valve well inspection cover 9 to the water storage well inspection cover 12, when inspecting the air valve 5, since there is no exhaust pipe 13, it is easier for the maintenance personnel to open the air valve well inspection cover 9, which brings convenience to the maintenance work.

[0030] Since the water level in the air valve well 1 exceeds the water inlet of the siphon pipe 6 during siphon drainage, the gas in the air valve well 1 can no longer be discharged into the water storage well 2 through the siphon pipe 6. At this time, in order to ensure the air flow between the two wells, as a preferred example, it also includes a ventilation pipe 15, which connects the air valve well 1 and the vertical shaft 10, and the height of the ventilation pipe 15 is greater than the highest point height of the siphon pipe 6.

[0031] In order to facilitate the access of maintenance personnel, ladders 14 are provided on the walls of the air valve well 1 and the vertical shaft 10. Since the water storage well 2 height exceeds the average height of adults, the ladder of the vertical shaft 10 can extend downward into the water storage well 2.

[0032] The water stored in the water storage well 2 can be used for daily use. When drawing water, the water pump hose is directly extended into the water storage well 2 through the exhaust pipe 13, and then the external water pump can be used to draw water. Therefore, in order to facilitate knowing the water volume in the water storage well 2, as a preferred example, it also includes a float 16, a hanging block 18 and a pull rope 17. The float 16 is arranged in the water storage well 2, and the hanging block 18 is arranged below the pipe mouth of the exhaust pipe 13 and connected to the float 16 through the pull rope 17. When there is no water in the water storage well 2, the float 16 is located at the bottom of the well, the hanging block 18 hangs down and pulls the pull rope 17 to keep it in a tensioned state. At this time, the 0 mark can be marked on the part of the pull rope 17 outside the exhaust pipe 13. When the water volume in the water storage well 2 gradually increases, the float 16 rises and the hanging block 18 falls. When drawing water, the water volume in the well can be judged according to the position of the 0 mark.

[0033] In order to prevent foreign debris or small animals from entering the water storage well 2 through the exhaust pipe 13, a protective net is provided at the pipe opening of the exhaust pipe 13. The mesh diameter of the protective net is 2 cm, which can meet the protection requirements and can also penetrate the water pipe.

[0034] like Figure 4 As shown, when the air valve 5 works normally, the gas in the well exchanges gas with the outside through the siphon 6, the vent pipe 14 and the exhaust pipe 13, thereby realizing the normal function of the air valve well.

[0035] When the air valve 5 fails and causes leakage, Figure 5 As shown, as the water level in the air valve well 1 gradually rises, water will enter the siphon pipe 6. When the water level reaches the highest point of the siphon pipe 6, it will flow to the outlet and finally flow into the water storage well 2. At this time, the siphon pipe 6 will form a siphon phenomenon to make the water in the air valve well 1 continuously flow into the water storage well 2 until the water level in the air valve well 1 drops below the inlet. After the siphon is released, the remaining water in the air valve well 1 will be discharged into the ground through the seepage pipe 7 to avoid water accumulation in the well.

[0036] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

[0037] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation of the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0038] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than 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 the technical solution of the present invention can be modified and replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A drainage device for an air valve well, comprising a plurality of air valve wells (1) arranged at each exhaust node of a water delivery pipeline (3) and an air valve (5) installed on the water delivery pipeline (3) in each air valve well; characterized in that: It also includes a water storage well (2) arranged at the air valve well (1) and a siphon (6) connecting the air valve well (1) and the water storage well (2); The bottom height of the water storage well (2) is less than the bottom height of the air valve well (1), the water outlet height of the siphon tube (6) is less than the water inlet height, and the highest point height of the tube body is less than the flange height of the air valve (5).

2. A drainage device for an air valve well according to claim 1, characterized in that: A seepage and drainage pipe (7) is provided at the bottom of the air valve well (1).

3. A drainage device for an air valve well according to claim 2, characterized in that: A vertical shaft (10) is provided at the top of the water storage well (2); a water storage well inspection cover (12) is provided at a wellhead A (11) of the vertical shaft (10); an exhaust pipe (13) is provided on the water storage well inspection cover (12); and an air valve well inspection cover (9) is provided at a wellhead B (8) of the air valve well (1).

4. A drainage device for an air valve well according to claim 3, characterized in that: The top plate of the water storage well (2) and the bottom plate of the air valve well (1) are at the same height.

5. A drainage device for an air valve well according to claim 4, characterized in that: It also comprises a ventilation pipe (15), wherein the ventilation pipe (15) connects the air valve well (1) and the vertical well (10), and the height of the ventilation pipe (15) is greater than the height of the highest point of the siphon pipe (6).

6. A drainage device for an air valve well according to claim 5, characterized in that: Ladders (14) are provided on the walls of the air valve shaft (1) and the vertical shaft (10).

7. A drainage device for an air valve well according to claim 6, characterized in that: It also comprises a float (16), a pendant (18) and a pull rope (17), wherein the float (16) is arranged in the water storage well (2), and the pendant (18) is arranged below the pipe opening of the exhaust pipe (13) and is connected to the float (16) via the pull rope (17).

8. A drainage device for an air valve well according to claim 7, characterized in that: The pipe opening of the exhaust pipe (13) is provided with a protective net.

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