Sediment cleaning device for water taking gallery of bottom grid barrier dam and bottom grid barrier dam

Abstract

The utility model relates to the technical field of water conservancy projects, in particular to a sediment cleaning device for a water taking gallery of a bottom grid barrier dam and the bottom grid barrier dam. The deposit cleaning device comprises a dirt cleaning pipe, a water inlet of the dirt cleaning pipe is connected with a water pump, and a water outlet of the dirt cleaning pipe is used for being communicated with a water taking gallery. The water inlet of the sewage disposal pipe is connected with the water pump, the water outlet of the sewage disposal pipe is connected with the water taking gallery, the water pump can be used for pumping water to flush deposits in the water taking gallery at high pressure, manual cleaning is not needed, the sewage disposal difficulty is lowered, the cleaning effect is guaranteed, and meanwhile safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservancy projects, in particular to a siltation cleaning device for a water intake corridor of a bottom grid fence dam and a bottom grid fence dam. Background Art

[0002] Digrill dams are generally built in mountainous areas and river sections with large gradients, where the population is relatively sparse and the water source carries a large amount of sediment during the flood season. After the water intake corridor of the digrill dam has been in operation for a period of time, sediment and other impurities will settle and accumulate. If the sediment is not cleaned in time, it will fill up the water intake corridor and affect the normal water intake of the water intake corridor. Therefore, the water intake corridor needs to be cleaned and treated regularly.

[0003] At present, the traditional method of cleaning water intake corridors mainly adopts manual cleaning. Workers need to carry cleaning tools into the corridors. However, due to the limited size of the corridors and space constraints, manual cleaning is time-consuming and labor-intensive. In addition, there is always water in the water intake corridors, making cleaning difficult and the cleaning quality cannot be guaranteed. At the same time, there are certain safety hazards in the manual cleaning process.

[0004] Therefore, how to efficiently and safely clean up the siltation in the water intake corridor is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a siltation cleaning device for a water intake corridor of a bottom grid fence dam and a bottom grid fence dam. By connecting a water pump to the water inlet of a sewage cleaning pipe and connecting the water outlet to the water intake corridor, the water pump can be used to pump water with high pressure to flush silt in the water intake corridor, without the need for manual cleaning, thereby reducing the difficulty of sewage cleaning, ensuring the cleaning effect, and improving safety.

[0006] In response to the above technical problems, the technical solution provided by the utility model is a silt cleaning device for the water intake corridor of the bottom grid dam, including a sewage cleaning pipe, the water inlet of the sewage cleaning pipe is connected to a water pump, and the water outlet of the sewage cleaning pipe is used to connect to the water intake corridor.

[0007] Furthermore, the lowest point of the water outlet of the sewage cleaning pipe is arranged close to the bottom of the water intake gallery.

[0008] Furthermore, the water outlet of the sewage cleaning pipe is provided with a trumpet-shaped expansion structure.

[0009] Furthermore, the sewage cleaning pipe is a Y-shaped tee pipe as a whole, one end of the tee pipe is the water inlet of the sewage cleaning pipe, and the other two ends of the tee pipe are the water outlets of the sewage cleaning pipe, and the two water outlets are arranged at intervals along the width direction of the water intake corridor.

[0010] Furthermore, a maintenance gate valve is provided near the water inlet of the sewage cleaning pipe.

[0011] Furthermore, the water pump is a submersible pump, which is used to be arranged in the water flow in the upstream direction of the bottom grid dam.

[0012] Furthermore, the sewage cleaning pipe is a steel pipe, and the flow velocity in the sewage cleaning pipe is 1.5m / s to 3m / s.

[0013] In response to the above technical problems, the technical solution further provided by the present invention is a bottom grid fence dam, comprising a dam shoulder section, a water intake dam section and an overflow dam section arranged in sequence along the transverse direction, a maintenance valve well being provided at the dam shoulder section, a water intake corridor extending along the transverse direction being provided inside the water intake dam section, the maintenance valve well being connected to the water intake corridor, the inner wall of the maintenance valve well being connected to a water diversion pipe, the bottom of the maintenance valve well being connected to a sand discharge pipe, the output end of the sand discharge pipe being connected to the downstream, and a siltation cleaning device for the water intake corridor of the bottom grid fence dam, the siltation cleaning device for the water intake corridor of the bottom grid fence dam comprising a sewage cleaning pipe, the water inlet of the sewage cleaning pipe being connected to a water pump, and the water outlet of the sewage cleaning pipe being used to connect to the water intake corridor.

[0014] Furthermore, the lowest point of the water outlet of the sewage cleaning pipe is arranged close to the bottom of the water intake gallery.

[0015] Furthermore, the water outlet of the sewage cleaning pipe is provided with a trumpet-shaped expansion structure.

[0016] Furthermore, the sewage cleaning pipe is a Y-shaped tee pipe as a whole, one end of the tee pipe is the water inlet of the sewage cleaning pipe, and the other two ends of the tee pipe are the water outlets of the sewage cleaning pipe, and the two water outlets are arranged at intervals along the width direction of the water intake corridor.

[0017] Furthermore, a maintenance gate valve is provided near the water inlet of the sewage cleaning pipe.

[0018] Furthermore, the water pump is a submersible pump, which is used to be arranged in the water flow in the upstream direction of the bottom grid dam.

[0019] Furthermore, the sewage cleaning pipe is a steel pipe, and the flow velocity in the sewage cleaning pipe is 1.5m / s to 3m / s.

[0020] Furthermore, a through hole extending in the transverse direction is provided on the overflow dam section, the through hole is communicated with the water intake gallery, and the sewage cleaning pipe is arranged in the through hole on the side facing the water intake gallery.

[0021] Furthermore, a maintenance gate valve is provided on the sand discharge pipe.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] (1) The water inlet of the dirt cleaning pipe is connected to a water pump, and the water outlet is connected to the water intake corridor. The silt in the water intake corridor can be flushed under high pressure by pumping water with the water pump, eliminating the need for manual cleaning, reducing the difficulty of dirt cleaning, ensuring the cleaning effect, and improving safety at the same time.

[0024] (2) The lowest point of the water outlet of the dirt cleaning pipe is arranged close to the bottom of the water intake corridor, which can improve the dirt cleaning effect.

[0025] (3) The dirt cleaning pipe is a tee pipe, and the two water outlets are arranged at intervals along the width direction of the water intake corridor. On the one hand, the size of the water outlet can be relatively reduced, the water outlet pressure can be increased, and the dirt cleaning ability can be improved. On the other hand, the two vertically spaced water outlets can increase the dirt cleaning range and ensure the dirt cleaning effect. Description of the Drawings

[0026] Figure 1 is a top view of a bottom grid bar dam in Embodiment 1 of the present utility model.

[0027] Figure 2 is a cross-sectional view of a bottom grid bar dam in the front view direction in Embodiment 1 of the present utility model.

[0028] In the figure: 1, submersible pump; 2, dirt cleaning pipe; 3, bottom grid bar dam; 4, water intake corridor; 5, filter layer; 6, grid bar; 7, maintenance valve well; 8, pump station water intake pipe; 9, sand discharge pipe; 10, maintenance gate valve; 11, dam shoulder section; 12, water intake dam section; 13, overflow dam section; 14, apron; S, river water flow direction; A, clean sewage flow direction. Detailed Implementation Modes

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application: Specific Embodiment 1:

[0031] In this embodiment, as Figure 1 , 2 shown, the horizontal direction is the length direction of the water intake corridor 4, and the vertical direction is the width direction of the water intake corridor 4.

[0032] Refer to Figures 1 to 2, a bottom grid dam of the present utility model includes a dam shoulder section 11, a water intake dam section 12, and an overflow dam section 13 arranged in sequence horizontally. Among them, a maintenance valve well 7 is provided at the dam shoulder section 11. Inside the water intake dam section 12, there is a water intake corridor 4 extending horizontally. A grid 6 is provided at the upstream side opening of the water intake corridor 4. In this embodiment, the size of the maintenance valve well 7 is designed to be 1.5 m in length, 1.5 m in width, and 2 m in height. The grid bars of the grid 6 are φ16 steel bars, and the grid gap is designed to be 20 mm. Of course, in other embodiments, the size of the maintenance valve well 7, the specifications of the grid bars, and the gaps can all be set according to actual needs and are not limited here.

[0033] In this embodiment, the length of the water intake corridor 4 in the horizontal direction is adapted to the length of the water intake dam section 12 in the horizontal direction, and the water intake corridor 4 penetrates the water intake dam section 12 horizontally. The bottom of the maintenance valve well 7 is lower than the water intake corridor 4, and the side of the maintenance valve well 7 facing the water intake corridor 4 is communicated with the water intake corridor 4. A pumping station water intake pipe 8 is communicated with the inner wall of the maintenance valve well 7, and a sediment discharge pipe 9 is communicated with the bottom of the maintenance valve well 7. The output end of the sediment discharge pipe 9 is communicated with the downstream. In this way, during actual use, the sediment accumulated in the maintenance valve well 7 can be discharged to the downstream through the sediment discharge pipe 9. When water intake is required, the maintenance valve 10 of the sediment discharge pipe 9 is closed, and the maintenance gate valve 10 of the pumping station water intake pipe 8 is opened, and water can be taken through the pumping station water intake pipe 8. Of course, in other embodiments, the pumping station water intake pipe 8 can also be used as a corridor outlet pipe. In this embodiment, the sediment discharge pipe 9 is made of steel pipe, and the pipe diameter is designed to be DN600 - 1000. Of course, in other embodiments, the sediment discharge pipe 9 can also be a cement pipe, and the pipe diameter can be other sizes as long as it can meet the sediment discharge requirements.

[0034] In this embodiment, as Figure 1 shown, on the upstream side of the bottom grid dam 3 close to the water flow direction S of the river channel, an anti-seepage layer 5 is also provided. On the upstream side of the anti-seepage layer 5, a geotextile is provided. On the downstream side of the bottom grid dam 3, a stilling basin 14 is provided. In this way, the geotextile and the anti-seepage layer 5 can be used to prevent river channel sundries and large particles from flowing into the water intake corridor 4, reduce the cleaning frequency of the water intake corridor 4, and increase the durability of the project.

[0035] In this embodiment, as Figure 1 、 2 shown, the bottom grid dam 3 also includes a sediment cleaning device for the water intake corridor of the bottom grid dam (hereinafter referred to as the sediment cleaning device). The sediment cleaning device includes a dirt cleaning pipe 2. The water inlet of the dirt cleaning pipe 2 is connected with a water pump, and the water outlet of the dirt cleaning pipe 2 is used to communicate with the water intake corridor 4.

[0036] Specifically, in this embodiment, a through hole extending transversely is provided on the overflow dam section 13. The aperture of the through hole is adapted to the size of the sewage cleaning pipe 2. The through hole communicates with the water intake corridor 4. The side of the sewage cleaning pipe 2 facing the water intake corridor 4 is arranged in the through hole, and the water outlet of the sewage cleaning pipe 2 is directly communicated with the water intake corridor 4. In this way, the side of the sewage cleaning pipe 2 facing the water intake corridor 4 can be buried inside the overflow dam section 13. With this setting, the water outlet of the sewage cleaning pipe 2 can be arranged on the side of the water intake corridor 4 facing away from the maintenance valve well 7 of the bottom grid dam. The water outlet direction of the sewage cleaning pipe 2 is consistent with the length extension direction of the water intake corridor 4. When it is necessary to clean the water intake corridor 4, start the water pump, and the high-pressure water flow flushes the water intake corridor 4 along the sewage water flow direction A and flows to the maintenance valve well 7, and then is discharged into the downstream through the sand discharge pipe 9 in the maintenance valve well 7 to complete the cleaning, without manual cleaning, ensuring the cleaning effect and improving the safety at the same time.

[0037] Of course, in other embodiments, the water outlet of the sewage cleaning pipe 2 may not penetrate into the overflow dam section 13, but be directly externally connected to the outer opening of the through hole. In this embodiment, the water pump is a submersible pump 1. The submersible pump 1 is arranged in the water flow in the upstream direction of the bottom grid dam 3, and the sediment deposited in the water intake corridor 4 is flushed to the sand discharge pipe 9 by the high-speed water flow after sucking water from in front of the dam and pressurizing. Of course, in other embodiments, the water pump may also be a pumping pump arranged on the shore.

[0038] Preferably, in this embodiment, as Figure 2 shown, the lowest point of the water outlet of the sewage cleaning pipe 2 is arranged close to the bottom of the water intake corridor 4. In this way, the high-pressure water flow in the sewage cleaning pipe 2 can be used to mainly flush the sediment at the bottom of the water intake corridor 4, improving the sewage cleaning effect. Of course, in other embodiments, when meeting the actual use requirements, the water outlet of the sewage cleaning pipe 2 can be arranged close to the middle of the water intake corridor 4 in the vertical direction.

[0039] In this embodiment, the water outlet of the sewage cleaning pipe 2 is provided with a flared flaring structure. In this way, during actual use, the high-pressure water flow at the water outlet can be diverted through the flared structure to ensure that the inner wall of the water intake corridor 4 can be flushed. Of course, in other embodiments, when meeting the actual requirements, the water outlet of the sewage cleaning pipe 2 can be arranged as a converging structure, which can increase the water pressure at the water outlet and improve the flushing effect. Or the water outlet of the sewage cleaning pipe 2 can also be arranged with a flat opening structure.

[0040] Preferably, in this embodiment, a maintenance gate valve 10 is arranged at the position of the sewage cleaning pipe 2 close to its water inlet. In this way, when not cleaning, the maintenance gate valve 10 is closed to prevent the accumulated impurities from entering the water pump. The sand discharge pipe 9 and the pumping station water intake pipe 8 are also provided with maintenance gate valves 10. The specifications and models of the maintenance gate valves 10 can be determined according to the actual design dimensions of the bottom grid dam 3, which is the prior art well-known to those skilled in the art and will not be exemplified here.

[0041] In this embodiment, as Figure 1 , 2 shown, the dirt cleaning pipe 2 is a double-pass pipe with an inlet and an outlet. In other embodiments, according to the design requirements, the dirt cleaning pipe 2 can be a tee pipe with an overall Y shape. One end of the tee pipe is the inlet of the dirt cleaning pipe 2, and the other two ends of the tee pipe are the outlets of the dirt cleaning pipe 2. And the two outlets are arranged at intervals in the longitudinal direction along the width direction of the water intake corridor 4 in the water intake corridor 4. In this way, on the one hand, the size of the outlet can be relatively reduced, the water outlet pressure can be increased, and the dirt cleaning ability can be improved. On the other hand, the two outlets can increase the dirt cleaning range and ensure the dirt cleaning effect.

[0042] Preferably, in this embodiment, the dirt cleaning pipe 2 is a steel pipe, and the flow velocity of the pipe flow in the dirt cleaning pipe 2 is controlled by a water pump to be 1.5 m / s to 3 m / s to achieve a better dirt cleaning effect.

[0043] In summary, the bottom grid dam 3 of the present utility model is provided with a silt cleaning device. The inlet of the dirt cleaning pipe 2 is connected to a water pump, and the outlet is connected to the water intake corridor 4. It can use the water pump to pump water to wash the silt in the water intake corridor 4 under high pressure and discharge it through the sand discharge pipe 9. By improving the original structure of the bottom grid dam 3, it not only ensures the cleaning effect, but also does not require manual cleaning, liberates the labor force, reduces the difficulty of dirt cleaning, and improves the safety at the same time.

[0044] For an embodiment of the silt cleaning device of the bottom grid dam water intake corridor of the present utility model, the structure of the silt cleaning device of the bottom grid dam water intake corridor of the bottom grid dam of the present utility model is the same as that of the silt cleaning device of the bottom grid dam water intake corridor in the above embodiment, and will not be described in detail here.

[0045] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0046] In the description of the embodiments of the present application, it should be noted that if terms such as "upper", "lower", "horizontal", "inner", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the invention product is usually placed during use, it is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0047] In addition, if the term "horizontal" appears, it does not mean that the component is required to be absolutely horizontal, but it can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined.

Claims

1. A silt cleaning device for a water intake corridor of a bottom grid dam, characterized in that, It includes a sewage cleaning pipe, the water inlet of the sewage cleaning pipe is connected with a water pump, and the water outlet of the sewage cleaning pipe is used to communicate with the water intake corridor; The water outlet of the sewage cleaning pipe is arranged on one side of the maintenance valve well of the water intake corridor facing away from the bottom grid dam, and the water outlet direction of the sewage cleaning pipe is consistent with the length extension direction of the water intake corridor; The lowest point of the water outlet of the sewage cleaning pipe is arranged close to the bottom of the water intake corridor; The water outlet of the sewage cleaning pipe is provided with a flared flaring structure.

2. The silt cleaning device for the intake corridor of the bottom grid dam according to claim 1, characterized in that, The sewage cleaning pipe is a three-way pipe integrally shaped like a Y. One end of the three-way pipe is the water inlet of the sewage cleaning pipe, and the other two ends of the three-way pipe are the water outlets of the sewage cleaning pipe, and the two water outlets are arranged at intervals along the width direction of the water intake corridor.

3. The silt cleaning device for the intake corridor of the bottom grid dam according to claim 1, characterized in that A maintenance gate valve is arranged at a position of the sewage cleaning pipe close to its water inlet.

4. The silt cleaning device for the intake corridor of the bottom grid dam according to claim 1, characterized in that, The water pump is a submersible pump, and the submersible pump is arranged in the water flow in the upstream direction of the bottom grid dam.

5. The silt cleaning device for the intake corridor of the bottom grid dam according to claim 1, wherein, The sewage cleaning pipe is a steel pipe, and the flow velocity of the pipe flow in the sewage cleaning pipe is 1.5 m / s to 3 m / s.

6. A bottom grid dam, comprising a dam shoulder section, a water intake dam section and an overflow dam section arranged in sequence along the transverse direction, a maintenance valve well is provided at the dam shoulder section, a water intake corridor extending along the transverse direction is arranged inside the water intake dam section, the maintenance valve well is communicated with the water intake corridor, a water diversion pipe is communicated with the inner wall of the maintenance valve well, a sediment discharge pipe is communicated with the bottom of the maintenance valve well, and the output end of the sediment discharge pipe is communicated with the downstream, characterized in that, It also includes a silt cleaning device for the bottom grid dam water intake corridor according to any one of the above claims 1-5.

7. The bottom grid dam according to claim 6, characterized in that, Through holes extending transversely are formed in the overflow dam section, the through holes are communicated with the water intake corridor, and one side of the sewage cleaning pipe facing the water intake corridor is arranged in the through holes.

8. The bottom grid dam according to claim 6, characterized in that, A maintenance gate valve is arranged on the sand discharge pipe.

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