Multifunctional underground drainage system

Abstract

The utility model relates to the technical field of underground equipment, in particular to a multifunctional underground drainage system. Comprising a temporary water sump, the temporary water sump is communicated with a first three-way valve and a second three-way valve which are in butt joint with a main pipeline of an outer water sump at intervals, a first electric valve is arranged at a connecting pipe opening of the first three-way valve and the temporary water sump, a second electric valve is arranged on the main pipeline and located between the first three-way valve and the second three-way valve, and a submersible sewage pump in butt joint with the second three-way valve is installed in the temporary water sump. Remote flexible allocation of water drainage from the underground water sump at the position of 60 meters to the underground water sump at the position of 20 meters and from the underground water sump at the position of 20 meters can be achieved, and timely supply of production water is guaranteed. The emergency drainage function of the temporary water sump is achieved, and normal operation of the main haulage roadway is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of downhole equipment, and in particular to a multifunctional downhole drainage system. Background Art

[0002] Mining operations generate surface seepage water, rock pore water, mine water, drainage water from underground aquifers, and underground production dust control water. These types of water collect in the mine. If not promptly channeled to the surface, flooding accidents can easily occur, resulting in casualties among workers and property losses within the mine.

[0003] To drain underground water, a water tank is constructed to collect the water, which is then discharged to the surface. However, the drainage system is composed of a number of pipes and valves. During actual operation, problems such as submersible pump failure and valve failure may occur, resulting in the pump's inability to drain water normally. In other cases, the drainage system needs to be shut down for periodic maintenance of different areas, during which time the system cannot operate normally and drainage operations cannot be carried out.

[0004] In order to avoid problems such as serious water accumulation in the transport tunnel during sudden failure or maintenance of the drainage system, which affects mining transportation, this application provides a multifunctional underground drainage system and adds a temporary emergency drainage system to deal with temporary water storage and drainage problems in emergency situations. Utility Model Content

[0005] The purpose of this application is to solve the problems existing in the prior art and to propose a multifunctional underground drainage system.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] A multifunctional underground drainage system includes a temporary water tank, on which a 1# three-way valve and a 2# three-way valve are connected at intervals to the main pipe of an external water tank. A 1# electric valve is provided at the connection pipe between the 1# three-way valve and the temporary water tank, a 2# electric valve is provided on the main pipe between the 1# three-way valve and the 2# three-way valve, and a submersible sewage pump connected to the 2# three-way valve is installed in the temporary water tank.

[0008] Preferably, a one-way check valve is provided at the connection port between the submersible sewage pump and the 2# three-way valve.

[0009] Preferably, a slope is provided at the bottom end of the temporary water tank, the submersible sewage pump is located at the bottom end of the slope, and the water guide trough is located at the top end of the slope.

[0010] Preferably, an L-shaped water guide groove is provided in the temporary water tank, the 1# three-way valve and the temporary water tank interface are inserted into the water guide groove, and the water outlet at the horizontal part of the lower end of the water guide groove faces the submersible sewage pump.

[0011] Preferably, a water turbine is provided in the water guide trough, and the water turbine is connected to a generator located outside the temporary water tank.

[0012] Preferably, a filter screen is detachably installed in the water guide trough above the turbine.

[0013] Compared with the existing technology, this application provides a multifunctional underground drainage system with the following beneficial effects:

[0014] 1. It can realize remote and flexible allocation of drainage from the water tank at -60 meters underground to the temporary water tank at -20 meters underground, and ensure timely supply of production water.

[0015] 2. Realize the emergency drainage function of the temporary water tank to ensure the normal operation of the main transport tunnel.

[0016] 3. The 1# electric valve, 2# electric valve, submersible sewage pump and pump room PLC control system are connected through a wired communication system to achieve interlocking control and have remote control function.

[0017] 4. Self-operated power generation reduces external energy loss.

[0018] Other advantages, objectives and features of the present application will be described in part in the following description; and in part, will be apparent to those skilled in the art based on an examination of the following; or, may be taught from the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the layout of the temporary emergency drainage system for a certain section of the tunnel in this application.

[0020] Figure 2 For this application Figure 1 A partial schematic diagram of point A.

[0021] Figure 3 This is a schematic diagram of another structural form of the filter screen of this application.

[0022] Figure 4 This is a schematic diagram of the water channel structure of this application.

[0023] In the figure: 1. Main pipeline; 2. Temporary water tank; 3. 1# three-way valve; 4. 2# three-way valve; 5. 1# electric valve; 6. 2# electric valve; 7. One-way check valve; 8. Submersible sewage pump; 9. Water guide channel; 10. Turbine; 11. Filter. DETAILED DESCRIPTION

[0024] The following is a combination of the appended examples of the present application Figure 1-4, the technical solutions in the embodiments of the present application are described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments.

[0025] Example 1. In order to ensure that the accumulated water in the mine can continue to operate when the drainage system is partially repaired or fails, this embodiment provides a multifunctional underground drainage system, including a temporary water tank 2. The temporary water tank 2 is connected to the main pipeline of the external water tank with a 1# three-way valve 3 and a 2# three-way valve 4 at intervals. A 1# electric valve 5 is provided at the connecting pipe mouth between the 1# three-way valve 3 and the temporary water tank 2, and a 2# electric valve 6 is provided on the main pipeline between the 1# three-way valve 3 and the 2# three-way valve 4. A submersible sewage pump 8 connected to the 2# three-way valve 4 is installed in the temporary water tank 2.

[0026] Principle details of this embodiment:

[0027] A multifunctional underground drainage system includes a temporary water tank 2, a 1# three-way valve 3, and a 2# three-way valve 4. The temporary water tank 2 is located in a tunnel 20 meters underground. The 1# and 2# three-way valves 3 and 4 are spaced apart on the main pipeline of the existing drainage system. Two of the 1# and 2# three-way valves are connected to the main pipeline, and the pipe of the other end is inserted into the temporary water tank 2. The spacing between the 1# and 2# three-way valves is within the length range required for periodic maintenance of the original drainage system.

[0028] A 1# electric valve 5 is provided at the connection pipe mouth between the 1# three-way valve 3 and the temporary water tank 2, and a 2# electric valve 6 is provided between the 1# three-way valve 3 and the 2# three-way valve 4 on the main line. The 1# electric valve 5 and the 2# electric valve 6 are electric wafer butterfly valves.

[0029] A submersible sewage pump 8 is installed within the temporary water tank 2. This submersible sewage pump boasts a flow rate of 180 m³, a diameter of 150 mm, a head of 9 m, and a power of 15 kW. It can transport liquids containing hard solids and fibers, as well as dirty, sticky, and slippery liquids. The pump's intake is located near the bottom wall of the temporary water tank 2, and its discharge is connected to the pipe connection of the 2# three-way valve 4 inserted into the temporary water tank 2.

[0030] 1# electric valve 5, 2# electric valve 6, submersible sewage pump 8 are connected to the pump room PLC control system through a wired communication system to achieve interlocking control; and they are added to the original automatic drainage system, and the scheduling center of gravity is uploaded, with remote control function.

[0031] According to the above technical solution:

[0032] (1) When the equipment is operating normally:

[0033] The 2# electric valve 6 is opened, the 1# electric valve 5 is closed, and the submersible sewage pump 8 is closed. At this time, the mine water 60 meters underground is gathered to the external water tank along the main pipeline and is discharged after passing the water treatment.

[0034] (2) When maintenance or failure occurs within the management scope of temporary water tank 2:

[0035] Close 2# electric valve 6 and open 1# electric valve 5. The main pipeline now connects to temporary water tank 2 via 1# three-way valve 3 and 1# electric valve 5. Mine water from 60 meters underground can be temporarily pumped into temporary water tank 2 for storage, ensuring continuous drainage without affecting normal operations such as mineral transportation in the tunnel below. Simultaneously, submersible sewage pump 8 can be activated to drain the accumulated water in temporary water tank 2 into the main pipeline, achieving pipeline management of accumulated water underground.

[0036] After the inspection is completed or the fault is repaired, close the 1# electric valve 5, open the 2# electric valve 6, and the main line operates normally; cooperate with the submersible sewage pump 8 to completely drain the accumulated water in the temporary water tank 2 to prepare for the next use.

[0037] In a further embodiment of this solution, water in the main pipeline will flow through the 2# three-way valve 4 into the submersible sewage pump 8 and seep into the temporary water tank 2, potentially preventing normal use during emergency water storage. Therefore, it is necessary to take countermeasures to prevent the backflow of accumulated water. Installing an electric valve not only increases equipment cost, but also requires electrical connection to the pump room for remote control, increasing the control load of the control system. Therefore, in this embodiment, a one-way check valve 7 is provided at the connection between the submersible sewage pump 8 and the 2# three-way valve 4. The one-way check valve 7 blocks the backflow of accumulated water, and the cost is lower than that of an electric valve; additional control is also unnecessary, reducing the control pressure.

[0038] In a further embodiment of this solution, a slope is provided at the bottom of the temporary water tank 2, with the submersible sewage pump 8 located at the bottom of the slope and the water channel 9 located at the top of the slope. This facilitates the flow of accumulated water toward the submersible sewage pump 8, thereby preventing water from accumulating in the temporary water tank 2 and deteriorating over time, thereby affecting the environment within the roadway.

[0039] Example 4, in a further embodiment of this scheme, the mine water is not clean water, and contains various pollutants and even solid particles. These pollutants may settle at the bottom of the temporary water tank 2. Therefore, in this embodiment, an L-shaped water guide trough 9 is provided in the temporary water tank 2. The upper end of the water guide trough 9 is sealed and installed on the top wall of the temporary water tank 2, and the water outlet at the lower horizontal part faces the submersible sewage pump 8. The 1# three-way valve 3 and the interface of the temporary water tank 2 are inserted into the water guide trough 9. The water guide trough 9 is used to promote the rapid flow of accumulated water into the temporary water tank 2 to the submersible sewage pump 8, thereby reducing the time for the accumulated water to flow by itself, thereby improving the early deployment speed of the emergency drainage system.

[0040] The cross section of the water channel 9 is wide at the top and narrow at the bottom in the forward direction, and narrow at the top and wide at the bottom in the left direction, forming a fan-shaped nozzle structure, which increases the water spraying pressure of the water channel 9. The accumulated water is ejected from the lower end of the water channel 9 and impacts the slope surface, causing sediment to gather towards the submersible sewage pump 8, and then be pumped out of the temporary water tank 2 by the submersible sewage pump 8, thereby reducing the sedimentation of pollutants in the temporary water tank 2.

[0041] In a further embodiment of this solution, a turbine 10 is installed within the water channel 9 and connected to a generator located outside the temporary water tank 2. The generator is connected to a battery. The battery is electrically connected to the No. 1 and No. 2 electric valves 6. When the emergency drainage system itself is in operation, the accumulated water flow is adjusted to impact the turbine 10, generating power, which in turn generates electricity to power the No. 1 and No. 2 electric valves 5 and 6. This self-operated power generation reduces the need for external power supply and reduces the power consumption originally required to control the No. 1 and No. 2 electric valves 5 and 6.

[0042] In this embodiment, when the equipment fails, the water allocation time of the temporary water tank 2 is short and the power generation is less; during maintenance, the water allocation time is relatively long and the power generation is more, and the maintenance position is a regular process, which can form a fixed power generation position.

[0043] In a further embodiment of this solution, a removable filter screen 11 is installed in the water channel 9 above the turbine 10. This prevents particles in the accumulated water from damaging the turbine wheel of the turbine 10. The filter screen 11 is removable for subsequent cleaning, maintenance, and replacement.

[0044] Preferably, two or more sets of filters 11 are removably installed in the water channel 9 above the turbine 10. A U-shaped selector is provided above each filter 11 in the water channel 9. The selector extends through the sidewall of the water channel 9. An electric cylinder, i.e., an electric telescopic rod, is installed in the temporary water tank 2, corresponding to each selector. The electric cylinder is electrically connected to the generator's battery as a power source. By retracting the electric cylinder, the selector is controlled to move back and forth on the filter 11, removing debris trapped on the filter 11 and transferring it to the temporary water tank 2, thereby automatically cleaning the filter 11 and reducing manual operation.

[0045] The above is only a preferred specific implementation method of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and application concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0047] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A multifunctional underground drainage system, characterized in that: The invention comprises a temporary water tank (2), wherein a 1# three-way valve (3) and a 2# three-way valve (4) are connected to the main pipe of the external water tank at intervals on the temporary water tank (2), a 1# electric valve (5) is provided at the connection pipe mouth between the 1# three-way valve (3) and the temporary water tank (2), a 2# electric valve (6) is provided between the 1# three-way valve (3) and the 2# three-way valve (4) on the main pipe, and a submersible sewage pump (8) connected to the 2# three-way valve (4) is installed in the temporary water tank (2).

2. A multifunctional underground drainage system according to claim 1, characterized in that: A one-way check valve (7) is provided at the butt connection between the submersible sewage pump (8) and the 2# three-way valve (4).

3. The multifunctional underground drainage system according to claim 1, characterized in that: The bottom end of the temporary water tank (2) is provided with a slope, the submersible sewage pump (8) is located at the bottom end of the slope, and the water guide trough (9) is located at the top end of the slope.

4. A multifunctional underground drainage system according to claim 3, characterized in that: An L-shaped water guide groove (9) is provided in the temporary water tank (2), and the interface between the 1# three-way valve (3) and the temporary water tank (2) is inserted into the water guide groove (9), with the water outlet at the horizontal portion of the lower end of the water guide groove (9) facing the submersible sewage pump (8).

5. A multifunctional underground drainage system according to claim 4, characterized in that: A water turbine (10) is provided in the water guide trough (9), and the water turbine (10) is connected to a generator located outside the temporary water tank (2).

6. A multifunctional underground drainage system according to claim 5, characterized in that: A filter screen (11) is detachably installed in the water guide trough (9) above the water turbine (10).

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