High-water-head inverted siphon emptying system

Abstract

The utility model discloses a high-water-head inverted siphon emptying system, which is provided with an emptying device and particularly utilizes the advantage that a water drainage and pressure reduction pipe in a pipe is higher in position and not easy to block, so that water drainage and pressure reduction can be ensured during emptying, water pressure in an inverted siphon main pipe can be gradually reduced, and after the water pressure in the inverted siphon main pipe is reduced to a proper degree, the emptying device can be used for emptying water. The inside of the inverted siphon main pipe is reversely inflated through the reverse inflation pipe by utilizing the inflation pump, part of deposited silt and water in the pipe bottom blow-down pipe and the inverted siphon main pipe can be reversely discharged, after the blow-down valve is opened, the remaining deposited silt is discharged from the pipe bottom blow-down pipe along with water, and the needed air pressure is small after pressure reduction is conducted through the in-pipe drainage and pressure reduction pipe. Compared with the prior art, even if the bottom of the inverted siphon main pipe is blocked by sundries such as silt, the inverted siphon main pipe can still be smoothly emptied.

Description

Technical Field

[0001] The utility model belongs to the field of inverted siphon systems, and particularly relates to a high-head inverted siphon emptying system. Background Art

[0002] Inverted siphon systems have requirements such as maintenance and winter protection, and emptying facilities must be set up to empty the inside of the main inverted siphon pipe. Traditional emptying facilities only set up emptying pipes. However, because their pipe diameters are small and they are located at the bottom of the main inverted siphon pipe, they are easily blocked by sundries such as sediment and branches. Moreover, due to the high water head of the high-drop inverted siphon, the deposited materials are pressed more and more tightly, resulting in the difficulty of opening the emptying valve or no water flowing out after opening, and the emptying cannot be completed. Summary of the Utility Model

[0003] (1) Technical problems to be solved: Aiming at the defects that the bottom of the main inverted siphon pipe in the prior art is easily blocked by sundries such as sediment and branches, and due to the high water head of the high-drop inverted siphon, the deposited materials are pressed more and more tightly, resulting in the inability of the emptying facilities to complete emptying, the utility model provides a high-head inverted siphon emptying system, which can ensure the smooth emptying of the main inverted siphon pipe.

[0004] (2) The technical scheme adopted by the utility model is as follows:

[0005] A high-head inverted siphon emptying system includes a main inverted siphon pipe, which includes an inlet section, a first transition section, a bottom pipe section, a second transition section and an outlet section arranged in sequence. The main inverted siphon pipe is connected to an emptying device. The emptying device includes a pipe bottom emptying pipe arranged at the bottom of the bottom pipe section. An emptying valve is arranged on the pipe bottom emptying pipe. A reverse charging pipe is connected to the side of the pipe bottom emptying pipe. The reverse charging pipe is connected to an air pump. A one-way valve is arranged on the reverse charging pipe. A pipe middle drainage and pressure reduction pipe is arranged on the first transition section. A valve is arranged on the pipe middle drainage and pressure reduction pipe.

[0006] Further technical scheme lies in that an inlet trash rack is arranged at the end of the inlet section on the main inverted siphon pipe.

[0007] Further technical scheme lies in that the connection position of the reverse charging pipe and the pipe bottom emptying pipe is close to the bottom pipe section.

[0008] Further technical scheme lies in that there are multiple drainage and pressure reduction pipes, and multiple drainage and pressure reduction pipes are evenly arranged on the first transition section.

[0009] (3) Due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows: By providing a venting device, specifically, a drain and pressure reducing pipe in the pipe is provided on the first transition section. A valve is provided on the drain and pressure reducing pipe in the pipe. A reverse charging pipe is connected to the side of the bottom drain pipe. The reverse charging pipe is connected to an air pump. A one-way valve is provided on the reverse charging pipe. Utilizing the advantage that the drain and pressure reducing pipe in the pipe is at a relatively high position and not easily blocked, it can ensure drainage and pressure reduction during venting, and can gradually reduce the water pressure in the inverted siphon main pipe. After the water pressure in the inverted siphon main pipe is reduced to an appropriate level, the air pump is used to reverse charge the inside of the inverted siphon main pipe through the reverse charging pipe, and part of the silt and water in the bottom drain pipe and the inverted siphon main pipe can be reversely discharged. After closing the air pump and opening the vent valve, the remaining silt is discharged with the water body from the bottom drain pipe. The required air pressure is small after pressure reduction through the drain and pressure reducing pipe in the pipe, which is beneficial to charging the gas pressure, and it is easy to open the vent valve. The one-way valve can prevent water from flowing into the air pump after entering the reverse charging pipe. Compared with the prior art, even if the bottom of the inverted siphon main pipe is blocked by sediment and other debris, the present utility model can still ensure the smooth venting of the inverted siphon main pipe. Description of the Drawings

[0010] Figure 1 is the overall structural schematic diagram of the present utility model;

[0011] Figure 2 is the structural schematic diagram of the present utility model using multiple drain and pressure reducing pipes. Detailed Embodiment

[0012] In order to make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments.

[0013] As Figure 1 and Figure 2 shown. A high-head inverted siphon venting system includes an inverted siphon main pipe 1. The inverted siphon main pipe 1 includes an inlet section 2, a first transition section 3, a bottom pipe section 4, a second transition section 5 and an outlet section 6 arranged in sequence. The inverted siphon main pipe 1 is connected to a venting device. The venting device includes a bottom drain pipe 7 provided at the bottom of the bottom pipe section 4. A vent valve 8 is provided on the bottom drain pipe 7. A reverse charging pipe 9 is connected to the side of the bottom drain pipe 7. The reverse charging pipe 9 is connected to an air pump 10. A one-way valve 11 is provided on the reverse charging pipe 9. A drain and pressure reducing pipe 14 in the pipe is provided on the first transition section 3. A valve 12 is provided on the drain and pressure reducing pipe 14 in the pipe.

[0014] During use, when emptying the main siphon pipe 1, first open the valve 12. Taking advantage of the fact that the drain pressure reducing pipe 14 in the pipe is not easily blocked due to its relatively high position, it can ensure drainage and pressure reduction, and gradually reduce the water pressure in the main siphon pipe 1. After the water pressure in the main siphon pipe 1 is reduced to an appropriate level, close the valve 12. Use the air inflation pump 10 to inflate the main siphon pipe 1 reversely through the reverse air inflation pipe 9, use the air pressure to reversely discharge some of the silt and water in the bottom drain pipe 7 and the main siphon pipe 1, and use the reverse water flow to disturb the water body in the main siphon pipe 1. After closing the air inflation pump and opening the drain valve 8, the remaining silt is discharged with the water body from the bottom drain pipe 7 to complete the emptying operation.

[0015] The setting of the drain pressure reducing pipe 14 in the pipe reduces the water pressure in the main siphon pipe 1. With a relatively small air pressure generated by the air inflation pump 10, it can inflate the main siphon pipe 1 reversely, and it is beneficial to open the bottom drain valve after the water pressure in the main siphon pipe 1 is reduced.

[0016] An inlet trash rack 13 is provided at the end of the inlet section 2 on the main siphon pipe 1 to intercept larger floating objects (such as branches, plastics, clothes, etc.) to form a primary interception.

[0017] The connection position of the reverse air inflation pipe 9 and the bottom drain pipe 7 is close to the bottom pipe section 4, which is more conducive to the gas entering the main siphon pipe 1 during inflation.

[0018] There are multiple drain pressure reducing pipes 14, and the multiple drain pressure reducing pipes 14 are evenly arranged on the first transition section 3, which can perform step-by-step pressure reduction to prevent the drain pressure reducing pipe 14 at a lower position from being blocked and unable to drain water.

[0019] The utility model forms a comprehensive emptying system by using the inlet trash rack 13, the drain pressure reducing pipe 14 in the pipe, the bottom drain pipe 7, the air inflation pump 10, etc., and the system ensures the achievement of the emptying function.

[0020] The above is only a preferred embodiment of the utility model.

Claims

1. A high-head inverted siphon emptying system, comprising an inverted siphon main pipe (1), the inverted siphon main pipe (1) includes an inlet section (2), a first transition section (3), a bottom pipe section (4), a second transition section (5) and an outlet section (6) arranged in sequence, and is characterized in that, The inverted siphon main pipe (1) is connected to an emptying device. The emptying device includes a pipe bottom emptying pipe (7) arranged at the bottom of the bottom pipe section (4). An emptying valve (8) is arranged on the pipe bottom emptying pipe (7). The side of the pipe bottom emptying pipe (7) is connected to a reverse charging pipe (9). The reverse charging pipe (9) is connected to an air charging pump (10). A one-way valve (11) is arranged on the reverse charging pipe (9). A pipe middle drainage and pressure reducing pipe (14) is arranged on the first transition section (3). A valve (12) is arranged on the pipe middle drainage and pressure reducing pipe (14).

2. The high-head inverted siphon emptying system according to claim 1, characterized in that, An inlet trash rack (13) is arranged at the end of the inlet section (2) on the inverted siphon main pipe (1).

3. The high-head inverted siphon emptying system according to claim 1, characterized in that, The connection position of the reverse charging pipe (9) and the pipe bottom emptying pipe (7) is close to the bottom pipe section (4).

4. The high-head inverted siphon emptying system according to claim 1, characterized in that, There are multiple drainage and pressure reducing pipes (14). The multiple drainage and pressure reducing pipes (14) are evenly arranged on the first transition section (3).

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