Device for improving desilting capacity of pump station in tunnel sewage disposal and diversion process

Abstract

The utility model discloses a device for improving the dredging capacity of a pump station in the tunnel sewage disposal and diversion process, and belongs to the technical field of tunnel sewage disposal and diversion. The device comprises a high-pressure air pipeline arranged outside a pump station sedimentation tank, at least one set of desilting air pipe is arranged at the bottom of each pump station sedimentation tank, the desilting air pipe comprises a desilting main air pipe, one end of the desilting main air pipe is communicated with the high-pressure air pipeline, a valve is arranged on the desilting main air pipe, and the desilting main air pipe is communicated with the high-pressure air pipeline. The other end of the dredging main air pipe at least communicates with a first dredging branch air pipe and a second dredging branch air pipe, the first dredging branch air pipe and the second dredging branch air pipe are symmetrically arranged in a square shape, and the tail end of the first dredging branch air pipe and the tail end of the second dredging branch air pipe are both closed; and a plurality of ventilation holes are formed in the pipe walls of the first desilting branch air pipe and the second desilting branch air pipe. The device is simple in structure, and can be used for quickly and effectively cleaning sediments in the sedimentation tank of the pump station, so that the dredging capacity of the pump station is improved.

Description

Technical Field

[0001] The utility model relates to a device for improving the silt removal capacity of a pump station during the process of tunnel sewage cleaning and diversion, and belongs to the technical field of tunnel sewage cleaning and diversion. Background Art

[0002] During tunnel construction, wastewater, rock seepage, and water gushing from surrounding rocks all impact the surrounding environment and ecological protection, particularly in ecologically fragile areas like plateaus. Therefore, the treatment of tunnel sewage is a crucial issue in green construction. To this end, plateau tunnel construction employs a separate system for sewage treatment. This system requires a pump station within the tunnel to initially precipitate impurities such as sand, gravel, and sludge, and then pump the water out to sedimentation tanks and treatment stations outside the tunnel.

[0003] As an important device for realizing primary sedimentation and water pumping functions in the sewage diversion structure system, the pump station will produce a large amount of gravel and sludge during the sedimentation process, resulting in siltation. If the silt cannot be cleaned up quickly, it will cause siltation in the drainage pipes, affecting the sewage diversion function.

[0004] The pumping stations in the current tunnel sewage diversion system lack the means to quickly and effectively clean the silt in the sedimentation tank, which affects the function of the pumping stations. Utility Model Content

[0005] In response to the above-mentioned defects in the existing technology, the utility model provides a device for improving the silt removal capacity of the pump station during the tunnel sewage diversion process. The device can be used to quickly and effectively clean the silt in the sedimentation tank of the pump station, thereby improving the silt removal capacity of the pump station.

[0006] The present invention is realized through the following technical scheme: a device for improving the dredging capacity of a pump station during the sewage cleaning and diversion process of a tunnel, characterized in that: it includes a high-pressure air duct arranged outside the sedimentation tank of the pump station, and at least one set of dredging air ducts is arranged at the bottom of each sedimentation tank of the pump station, the dredging air duct includes a dredging main air duct, one end of the dredging main air duct is connected to the high-pressure air duct, a valve is arranged on the dredging main air duct, and the other end of the dredging main air duct is connected to at least a first dredging branch air duct and a second dredging branch air duct, the first dredging branch air duct and the second dredging branch air duct are symmetrically arranged in a "mouth" shape, the ends of the first dredging branch air duct and the second dredging branch air duct are both closed, and a plurality of ventilation holes are arranged on the pipe walls of the first dredging branch air duct and the second dredging branch air duct.

[0007] In the utility model, compressed air with a certain pressure can be supplied to the silt cleaning air duct through the high-pressure air duct, and the compressed air is ejected through the ventilation holes on each silt cleaning branch pipe, which can quickly and effectively stir and clean the silt at the bottom of the sedimentation tank, so that the silt in the sedimentation tank is suspended to prevent the occurrence of large-scale siltation. In conjunction with the sewage pump, the silt in the sedimentation tank can be quickly discharged from the sedimentation tank.

[0008] Furthermore, in order to improve the dredging capacity, a third dredging branch air duct is provided in the middle of the "mouth" shape formed by the first dredging branch air duct and the second dredging branch air duct. One end of the third dredging branch air duct is connected to the dredging main air duct, and the end of the third dredging branch air duct is closed, and the end of the third dredging branch air duct corresponds to the end of the first dredging branch air duct and the end of the second dredging branch air duct. A number of ventilation holes are also provided on the wall of the third dredging branch air duct.

[0009] Furthermore, the ventilation holes on the pipe walls of the first silt-clearing branch air duct, the second silt-clearing branch air duct and the third silt-clearing branch air duct are arranged in multiple rows in a circumferential direction, with one row set at intervals of 10 cm, and each row includes multiple ventilation holes evenly arranged along the circumferential direction.

[0010] Furthermore, the diameter of the ventilation hole is 4 mm.

[0011] Furthermore, a handheld desilting device is connected to the high-pressure air duct or the main desilting air duct. The handheld desilting device includes a pressure hose and a handheld desilting steel pipe. One end of the pressure hose is connected to the high-pressure air duct or the main desilting air duct, and the other end of the pressure hose is connected to one end of the handheld desilting steel pipe. The handheld desilting steel pipe is equipped with a valve. By manually operating the handheld desilting device, additional cleaning can be performed on areas that are difficult to reach in the desilting air duct, ensuring thorough desilting.

[0012] Furthermore, a hanging basket filter device is installed at the outlet of the sedimentation tank corresponding to the inlet pipe of the sedimentation tank in the pump station. The hanging basket filter device includes a hanging basket welded with threaded steel. The bottom and sides of the hanging basket are both grid structures. Filters are fixed to the inner sides of the bottom and sides of the hanging basket. Hanging lugs are fixed to the upper edge of the hanging basket. The hanging basket is suspended from the edge of the pump station sedimentation tank via the hanging lugs. The hanging basket filter device can initially filter large particles of gravel, silt, and other debris from the water entering the sedimentation tank, preventing large particles of debris from being deposited in the sedimentation tank and causing siltation.

[0013] The beneficial effects of the present invention are as follows: the present invention has a simple structure, and the silt in the sedimentation tank can be suspended through the silt removal air duct, thereby preventing large-scale siltation in the sedimentation tank. The silt in the tank can be discharged out of the tunnel along with the sewage from the pump station, and the silt at the bottom of the sedimentation tank can be quickly and effectively cleaned; the handheld silt removal device can be moved by workers for cleaning, and additional cleaning can be performed on areas that are difficult to reach with the silt removal air duct, thereby achieving comprehensive silt removal in the sedimentation tank; the provision of a hanging basket can preliminarily filter large particles of gravel, silt, and other debris in the water body, preventing large particles of debris from being deposited in the sedimentation tank and causing siltation. The present invention can improve the silt removal capacity of the pump station, and has a simple design and low implementation cost. The silt removal process can be mechanized and labor-saving, thereby reducing construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the present utility model (the dredging air pipe in the sedimentation tank I, the sedimentation tank II is not shown);

[0015] Figure 2 is a structural schematic diagram of the hanging basket type filter screen device in the present utility model;

[0016] Figure 3 is a top view schematic diagram of the hanging basket in the present utility model;

[0017] Figure 4 is a side view schematic diagram of Figure 3 ;

[0018] Figure 5 is a structural schematic diagram of the handheld dredging device in the present utility model;

[0019] In the drawing, 1, high pressure air pipe, 2, dredging main air pipe, 3, first dredging branch air pipe, 4, second dredging branch air pipe, 5, third dredging branch air pipe, 6, handheld dredging device, 7, valve, 8, sedimentation tank I, 9, sedimentation tank II, 10, sedimentation tank III, 11, sedimentation tank inlet pipe, 12, hanging basket type filter screen device, 13, external drain pipe;

[0020] 6.1, pressure hose, 6.2, valve, 6.3, handheld dredging steel pipe;

[0021] 12.1, hanging basket, 12.2, hanging ear, 12.3, filter screen. DETAILED DESCRIPTION

[0022] The present utility model will be further described below through non-limiting examples and in combination with the drawings:

[0023] As shown in the drawings, a device for improving the dredging capacity of a pump station in a tunnel sewage shunting process comprises a high pressure air pipe 1 arranged outside a pump station sedimentation tank, the high pressure air pipe 1 is connected with a high pressure air supply device, and at least one set of dredging air pipe is arranged at the bottom of each pump station sedimentation tank. The number of the dredging air pipes arranged in each sedimentation tank is determined according to the specification of the sedimentation tank, for example, two sets of dredging air pipes are arranged in the sedimentation tank III 10 in the present embodiment, and one set of dredging air pipe can be arranged in each of the sedimentation tank I 8 and the sedimentation tank II 9. Each set of the dredging air pipe comprises a dredging main air pipe 2, one end of the dredging main air pipe 2 is communicated with the high pressure air pipe 1, a valve 7 is arranged on the dredging main air pipe 2, and the other end of the dredging main air pipe 2 is communicated with at least a first dredging branch air pipe 3 and a second dredging branch air pipe 4. The first dredging branch air pipe 3 and the second dredging branch air pipe 4 are symmetrically arranged in a "mouth" shape, the ends of the first dredging branch air pipe 3 and the second dredging branch air pipe 4 are closed, a plurality of air vents are arranged on the pipe wall of the first dredging branch air pipe 3 and the second dredging branch air pipe 4, the air vents are circular holes, the diameter of the air vents is preferably 4 mm, and the air vents are not shown in the drawings of the present embodiment.

[0024] Preferably, a third dredging branch air duct 5 is provided in the middle of the "mouth" shape formed by the first dredging branch air duct 3 and the second dredging branch air duct 4. One end of the third dredging branch air duct 5 is connected to the dredging main air duct 2, and the end of the third dredging branch air duct 5 is closed, and the end of the third dredging branch air duct 5 corresponds to the end of the first dredging branch air duct 3 and the end of the second dredging branch air duct 4. A number of ventilation holes are also provided on the wall of the third dredging branch air duct 5, and the ventilation holes on the wall of the third dredging branch air duct 5 can be consistent in size with the ventilation holes on the first dredging branch air duct 3 and the second dredging branch air duct 4.

[0025] More preferably, the ventilation holes on the pipe walls of the first dredging branch air duct 3, the second dredging branch air duct 4, and the third dredging branch air duct 5 are arranged in multiple rows in a circumferential direction, with one row set at an interval of 10 cm, and each row includes multiple ventilation holes evenly arranged along the circumferential direction.

[0026] The high-pressure air duct 1, the dredging main air duct 2, the first dredging branch air duct 3, the second dredging branch air duct 4, and the third dredging branch air duct 5 in the present invention are all made of steel pipes. The dredging main air duct 2, the first dredging branch air duct 3, the second dredging branch air duct 4, and the third dredging branch air duct 5 can be provided with ventilation holes on the pipes in advance in the factory and welded, and then the dredging main air duct 2 is connected to the high-pressure air duct 1 on site.

[0027] To ensure thorough desilting, in this embodiment, a handheld desilting device 6 is connected to the high-pressure air duct 1 or the main desilting air duct 2. The handheld desilting device 6 comprises a pressure hose 6.3 and a handheld desilting steel pipe 6.1. One end of the pressure hose 6.3 is connected to the high-pressure air duct 1 or the main desilting air duct 2, and the other end of the pressure hose 6.3 is connected to one end of the handheld desilting steel pipe 6.1. The handheld desilting steel pipe 6.1 is provided with a valve 6.2. The handheld desilting steel pipe 6.1 can be a 3 cm diameter steel pipe with a length of 150-200 cm. A corresponding valve is also provided on the end of the pressure hose 6.3 connected to the high-pressure air duct 1 or the main desilting air duct 2.

[0028] In this embodiment, a basket-type filter device 12 is also installed in the pump station sedimentation tank, corresponding to the outlet of the sedimentation tank inlet pipe 11. The basket-type filter device 12 includes a rectangular basket 12.1 welded from 16mm diameter threaded steel bars, measuring 90*90*100cm. The bottom and sides of the basket 12.1 are grid structures, with steel bars spaced 15cm apart. A filter screen 12.3 is fixed to the inner side of the bottom and sides of the basket 12.1. The filter screen 12.3 has a mesh size of 2mm*2mm. Hanging lugs 12.2 are welded to the upper edges of the basket 12.1, and the basket 12.1 is suspended from the edge of the pump station sedimentation tank via the hanging lugs 12.2. The basket 12.1 can filter larger sand and gravel in the water, preventing it from entering the sedimentation tank, thereby achieving water pretreatment. When a large amount of sand and gravel accumulates in the hanging basket type filter screen device 12, the hanging basket type filter screen device 12 can be taken out for cleaning by a mobile lifting device in the pump station, and can be recycled after cleaning.

[0029] When the utility model is working, the water body transported by the sedimentation tank inlet pipe 11 first passes through the hanging basket filter device 12 to filter out larger sand and gravel and other debris in the water body; the water body entering the sedimentation tank still contains impurities such as mud and sand, which will form silt at the bottom of the tank. When it is necessary to desilt the sedimentation tank, during the operation of the pump station, the valve 7 on the corresponding desilting main air duct 2 is opened, and the high-pressure air duct 1 supplies air to the desilting main air duct 2. The high-pressure air is ejected from the ventilation holes of each desilting branch air duct to stir the mud and sand at the bottom of the sedimentation tank, so that the settled mud and sand are suspended, preventing To stop siltation, cooperate with the sewage pump to discharge the silt in the sedimentation tank through the external drain pipe 13; the silt within a certain range in the sedimentation tank can be cleaned through the silt removal air duct. To ensure thorough cleaning, the worker can operate the handheld silt removal device 6 for additional cleaning. After opening the valve 6.2 on the handheld silt removal steel pipe and the valve connecting the pressure hose 6.3 to the high-pressure air duct 1 or the silt removal main air duct 2, the handheld silt removal steel pipe sprays high-pressure air to clean the dead corners that were not touched during silt removal by the silt removal air duct, thereby achieving all-round silt removal.

[0030] The other parts of this embodiment are all existing technologies and will not be described in detail here.

Claims

1. A device for improving the desilting capacity of a pump station during tunnel sewage diversion, characterized by: The invention comprises a high-pressure air duct (1) arranged outside a sedimentation tank of a pump station, and at least one set of silt removal air ducts is arranged at the bottom of each sedimentation tank of the pump station, wherein the silt removal air duct comprises a silt removal main air duct (2), one end of the silt removal main air duct (2) is connected to the high-pressure air duct (1), a valve is arranged on the silt removal main air duct (2), and the other end of the silt removal main air duct (2) is connected to at least a first silt removal branch air duct (3) and a second silt removal branch air duct (4), the first silt removal branch air duct (3) and the second silt removal branch air duct (4) are symmetrically arranged in a "mouth" shape, the ends of the first silt removal branch air duct (3) and the second silt removal branch air duct (4) are both closed, and a plurality of ventilation holes are arranged on the pipe walls of the first silt removal branch air duct (3) and the second silt removal branch air duct (4).

2. The device for improving the desilting capacity of a pump station during tunnel cleaning and sewage diversion according to claim 1 is characterized in that: A third silt-clearing branch air duct (5) is further provided in the middle of the "mouth" shape formed by the first silt-clearing branch air duct (3) and the second silt-clearing branch air duct (4); one end of the third silt-clearing branch air duct (5) is connected to the silt-clearing main air duct (2); the end of the third silt-clearing branch air duct (5) is closed, and the end of the third silt-clearing branch air duct (5) corresponds to the end of the first silt-clearing branch air duct (3) and the end of the second silt-clearing branch air duct (4); and a plurality of ventilation holes are also provided on the pipe wall of the third silt-clearing branch air duct (5).

3. The device for improving the desilting capacity of a pump station during tunnel sewage removal and diversion according to claim 2 is characterized by: The ventilation holes on the pipe walls of the first silt-clearing branch air duct (3), the second silt-clearing branch air duct (4), and the third silt-clearing branch air duct (5) are arranged in a plurality of circumferential rows, with one row arranged at intervals of 10 cm, and each row includes a plurality of ventilation holes evenly arranged in the circumferential direction.

4. The device for improving the desilting capacity of a pump station during tunnel sewage removal and diversion according to claim 3 is characterized by: The diameter of the ventilation holes is 4mm.

5. The device for improving the desilting capacity of a pump station during tunnel sewage cleaning and diversion according to claim 1, 2, 3 or 4, characterized in that: A handheld silt removal device (6) is also connected to the high-pressure air duct (1) or the main silt removal air duct (2). The handheld silt removal device (6) comprises a pressure hose (6.3) and a handheld silt removal steel pipe (6.1). One end of the pressure hose (6.3) is connected to the high-pressure air duct (1) or the main silt removal air duct (2), and the other end of the pressure hose (6.3) is connected to one end of the handheld silt removal steel pipe (6.1). A valve is provided on the handheld silt removal steel pipe (6.1).

6. The device for improving the desilting capacity of a pump station during the sewage cleaning and diversion process of a tunnel according to claim 1, 2, 3 or 4, characterized in that: A hanging basket type filter screen device (12) is provided in a sedimentation tank of a pump station at a water outlet corresponding to a water inlet pipe of the sedimentation tank. The hanging basket type filter screen device (12) comprises a hanging basket (12.1) welded with threaded steel bars. The bottom and side surfaces of the hanging basket (12.1) are both grid structures. Filter screens (12.3) are fixed to the inner side of the bottom and inner side surfaces of the hanging basket (12.1). A hanging lug (12.2) is fixed to the upper edge of the hanging basket (12.1). The hanging basket (12.1) is suspended on the edge of the sedimentation tank of the pump station via the hanging lug (12.2).

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