Drainage system and drainage method

Abstract

The invention discloses a drainage system and a drainage method. The technical problem that a roadway is flooded in the prior art is solved. The drainage system comprises a water pool; the height of the water drainage pipeline is lower than that of the water pool, and a water drainage valve is installed at one end of the water drainage pipeline; two ends of the connecting pipeline are respectively communicated with the water tank and the drain valve; and the gas extraction pipeline is communicated with the connecting pipeline and is used for extracting gas in the connecting pipeline. According to the drainage pipeline and the connecting pipeline, the function of draining accumulated water in the water pool can be independently achieved, the drainage valve can be opened when the water amount of the stope sedimentation tank is too large, drainage is conducted together with a cross cut ditch, the drainage flow is increased, and a passing roadway is prevented from being flooded.

Description

Technical Field

[0001] The present application belongs to the field of drainage technology, and specifically relates to a drainage system and a drainage method. Background Art

[0002] The underground mining site is the core area of ​​mining and is the place where ore is directly mined, blasted, loaded and transported. During the mining process, groundwater will continuously flow into the site and tunnels, forming accumulated water. The central water pumping station can pump out this accumulated water to ensure the normal mining of the mine.

[0003] Generally, the height of the mining site is higher than the central water pumping station. The mining site is equipped with a sedimentation tank. The groundwater flowing into the mining site will flow into the sedimentation tank. The water in the sedimentation tank will be discharged to the water tank of the central water pumping station through the auxiliary shaft stone gate ditch and the drainage well in turn. When the amount of water in the mining site sedimentation tank is too much, it exceeds the drainage capacity of the stone gate ditch, and the water will flood the passages between the mining sites, affecting traffic. Summary of the Invention

[0004] In order to solve the current technical problem of excessive water volume and untimely drainage, the present application provides a drainage system and a drainage method.

[0005] In a first aspect of the present application, there is provided a drainage system comprising:

[0006] pool;

[0007] A drainage pipe, the height of which is lower than that of the pool, and a drainage valve is installed at one end of the drainage pipe;

[0008] A connecting pipe, with both ends connected to the water pool and the drain valve respectively;

[0009] The gas extraction pipeline is connected to the connecting pipeline and is used to extract the gas in the connecting pipeline.

[0010] In some embodiments, the air extraction pipeline includes an air extraction pipe and an air extraction pump installed on the air extraction pipe, and the air extraction pipe is connected to a side of the connecting pipe close to the drainage pipe.

[0011] In some embodiments, the connecting pipe includes a first vertical section, a first horizontal section, a second vertical section, and a second horizontal section connected in sequence, the lower end of the first vertical section extends into the pool, and the second horizontal section is connected to the drainage pipe;

[0012] The height of the second horizontal section is lower than the height of the pool.

[0013] In some embodiments, the drainage system is applied to a mine, the first horizontal section and the second horizontal section are located in a tunnel of the mine, and the second vertical section is located in a pipe shaft of the mine.

[0014] In some embodiments, the drain valve is an electrically controlled valve, and the drainage system further includes a controller electrically connected to the electrically controlled valve.

[0015] In some embodiments, the water pool is provided with a liquid level sensor for measuring the liquid level in the water pool, and the liquid level sensor is electrically connected to the controller.

[0016] In some embodiments, the liquid level sensor is a float control switch, and the float control switch is electrically connected to the controller.

[0017] In some embodiments, a drainage ditch is further included, wherein the drainage ditch is connected to the pool.

[0018] In a second aspect of the present application, a drainage method is provided. Based on the drainage system of the first aspect, the drainage method includes:

[0019] Open the air extraction pipeline, allow the water in the pool to fill the connecting pipeline, and close the air extraction pipeline;

[0020] When the liquid level in the water pool is higher than the upper limit value, the drain valve is opened and the water in the water pool is discharged through the connecting pipe and the drain pipe; when the liquid level in the water pool is lower than the lower limit value, the drain valve is closed to stop drainage.

[0021] In a third aspect of the present application, a drainage method is provided, based on the drainage system of the first aspect, characterized in that the drainage method comprises:

[0022] Open the air extraction pipeline, allow the water in the pool to fill the connecting pipeline, and close the air extraction pipeline;

[0023] When the liquid level in the water pool rises and the rising rate exceeds the set value, the drain valve is opened and the water in the water pool is discharged through the connecting pipe and the drain pipe until the rising rate of the liquid level in the water pool is lower than the set value or the liquid level in the water pool drops.

[0024] The drainage system provided according to an embodiment of the present application includes a water pool, a drainage pipeline, a connecting pipeline and an air extraction pipeline.

[0025] The height of the drainage pipeline is lower than that of the pool. A drain valve is installed at one end of the drainage pipeline. Opening or closing the drain valve opens or closes the drainage pipeline. The two ends of the connecting pipeline are connected to the pool and the drain valve respectively. The drain valve and the pool are connected by the connecting pipeline. When drainage is required, the water in the pool can be discharged through the connecting pipeline, drain valve, and drainage pipeline. The exhaust pipeline is connected to the connecting pipeline and is used to extract gas from the connecting pipeline.

[0026] One end of the connecting pipe is inserted into the pool water, and the exhaust pipe is connected to the connecting pipe. Therefore, during the exhaust pipe's operation, the air in the connecting pipe is removed, and the pool water is filled into the connecting pipe under the action of negative pressure. When the connecting pipe is full of water, the exhaust pipe can be stopped. If there is an excess of water in the pool, such as when the liquid level exceeds the upper limit, the water needs to be drained outside the pool. Open the drain valve, and the water in the pool will automatically drain through the connecting pipe and the drain pipe. When the water level in the pool drops below the lower limit, close the drain valve to stop draining.

[0027] The drainage pipes and connecting pipes provided in this application can independently realize the function of draining the accumulated water in the pool. When there is too much water in the sedimentation pool in the mining area, the drainage valve can be opened to drain water together with the stone gate ditch, thereby increasing the drainage flow and avoiding flooding of the passage. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A structural schematic diagram of the drainage system of the present application is shown.

[0029] Description of reference numerals:

[0030] 10-water pool, 11-float control switch, 111-float, 112-micro switch; 20-connecting pipe, 21-first vertical section, 22-first horizontal section, 23-second vertical section, 24-second horizontal section; 30-drainage pipe, 31-drain valve, 40-exhaust pipe, 41-exhaust pipe, 42-exhaust pump. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to understand the present application more clearly, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of this application.

[0032] The first embodiment of the present application provides a drainage system that realizes automatic siphon drainage, which not only increases the drainage flow but also saves drainage costs.

[0033] The present application is described below with reference to specific embodiments and with reference to the accompanying drawings:

[0034] See also Figure 1 The drainage system provided in the embodiment of the present application includes a pool 10, a drainage pipeline 30, a connecting pipeline 20 and an air extraction pipeline 40.

[0035] The water pool 10 can be a water storage and sedimentation pool in the mining area, or it can be an additional water pool 10. In the case of an additional water pool 10, the water pool 10 can be connected to the water storage and sedimentation pool. The height of the drainage pipeline 30 is lower than that of the water pool 10. A drainage valve 31 is installed at one end of the drainage pipeline 30. The opening or closing of the drainage valve 31 makes the drainage pipeline 30 conductive or cut off. The two ends of the connecting pipeline 20 are respectively connected to the water pool 10 and the drainage valve 31. The drainage valve 31 is connected to the water pool 10 through the connecting pipeline 20. When drainage is required, the water in the water pool 10 can be discharged through the connecting pipeline 20, the drainage valve 31 and the drainage pipeline 30. The exhaust pipeline 40 is connected to the connecting pipeline 20 and is used to extract the gas in the connecting pipeline 20.

[0036] One end of the connecting pipe 20 is inserted into the water in the pool 10, and the exhaust pipe 40 is connected to the connecting pipe 20. Therefore, during the exhaust operation of the exhaust pipe 40, the air in the connecting pipe 20 will be extracted, and the water in the pool 10 will be filled into the connecting pipe 20 under the action of negative pressure. When the connecting pipe 20 is full of water, the exhaust pipe 40 can stop working. When there is an excess of water in the pool 10, for example, when the liquid level is higher than the upper limit, the water in the pool 10 needs to be drained out. The drain valve 31 is opened, and the water in the pool 10 can be automatically drained through the connecting pipe 20 and the drain pipe 30. When the water in the pool 10 is drained to a level lower than the lower limit, the drain valve 31 is closed to stop draining.

[0037] The drainage pipe 30 and connecting pipe 20 provided in this application can independently realize the function of draining the accumulated water in the pool 10. When there is too much water in the sedimentation tank of the mining area, the drainage valve 31 can be opened to drain water together with the stone gate ditch, thereby increasing the drainage flow and avoiding flooding of the passage.

[0038] The water pool 10 serves as a water storage structure. In some embodiments, a liquid level sensor may be provided in the water pool 10 to measure the liquid level in the water pool 10. The liquid level sensor may be a capacitive liquid level sensor, an ultrasonic liquid level sensor, a radar liquid level sensor, an optical liquid level sensor, etc.

[0039] In some embodiments, see Figure 1The liquid level sensor is a float control switch 11. The drainage system also includes a controller, which is electrically connected to the float control switch 11. The float control switch 11, also known as the float 111 switch, is a liquid level control device that works based on the buoyancy principle. It has mechanical transmission or magnetic control types. For the mechanical transmission type, when the liquid level rises or falls, the float 111 drives the internal micro switch 112 to operate through a lever or connecting rod. The float 111 of the magnetic control float 111 switch is embedded with a magnet. When the float 111 moves, the magnetic force triggers the closing or opening of the reed switch. When the micro switch 112 or the reed switch operates, an electrical signal will be output. The controller uses this to judge the liquid level and issue an instruction to open or close the drain valve 31.

[0040] In some embodiments, see Figure 1 The connecting pipe 20 includes a first vertical section 21, a first horizontal section 22, a second vertical section 23 and a second horizontal section 24 connected in sequence. The lower end of the first vertical section 21 extends into the pool 10, and the second horizontal section 24 is connected to the drainage pipe 30.

[0041] The top surface of pool 10 is at a high elevation above the liquid level, so first vertical section 21 is positioned vertically to allow water within pool 10 to rise above the pool wall. Second horizontal section 24 connects first vertical section 21 with second vertical section 23. Second vertical section 23 is lowered to accommodate the low height of the central pump tank. Generally, the lower end of second vertical section 23 is lower than that of first vertical section 21. The first vertical section 21, first horizontal section 22, and second vertical section 23 form an inverted U-shaped structure. In other embodiments, the connecting pipe is arc-shaped, which can also facilitate drainage of accumulated water from pool 10.

[0042] In some embodiments, the height of the second horizontal section 24 is lower than that of the pool 10 . Combined with siphoning, the liquid level difference enables the automatic drainage of the accumulated water in the pool 10 .

[0043] In some embodiments, the drainage system is applied to a mine stope. Both the first horizontal segment 22 and the second horizontal segment 24 are located within the mine's roadway, while the second vertical segment 23 is located within the mine's pipeline shaft. Relying on the mine's existing roadway and pipeline shaft for routing the connecting pipeline 20 eliminates the need for additional installation space, saving time and effort. In specific implementations, the first and second horizontal segments 22, 24 can be laid along the roadway wall, with undulating points being possible at specific locations.

[0044] In some embodiments, see Figure 1The air extraction pipeline 40 includes an air extraction pipe 41 and an air extraction pump 42 installed on the air extraction pipe 41. The air extraction pipe 41 is connected to the side of the connecting pipe 20 close to the drainage pipe 30. The air in the connecting pipe 20 is sucked out by the air extraction pump 42. In a specific implementation, the air extraction pump 42 can be a vacuum pump, a manual air extraction pump 42, or an electronically controlled air extraction pump 42. In the case of the electronically controlled air extraction pump 42, the air extraction pump 42 is electrically connected to the controller to realize the automatic control function of the air extraction pump 42.

[0045] In some embodiments, the connection between the air extraction pipe 41 and the connecting pipe 20 is located close to the drain valve 31 to allow the connecting pipe 20 to be filled with water as much as possible, thereby improving the success rate of drainage. In some embodiments, the lower end of the connecting pipe 20 is provided with two openings, one of which is connected to the drain valve 31 and the other is connected to the air extraction pipe 41, thereby connecting the air extraction pipe 41, the connecting pipe 20, and the drain valve 31. In other embodiments, the lower end of the connecting pipe is connected to a tee, which has a first port, a second port, and a third port, wherein the first port is connected to the connecting pipe, the second port is connected to the air extraction pipe 41, and the third port is connected to the drain valve 31, thereby also connecting the air extraction pipe 41, the connecting pipe 20, and the drain valve 31.

[0046] The drain valve 31 in the drain line 30 is an electrically controlled valve. A controller is electrically connected to the electrically controlled valve. When the liquid level in the pool 10 exceeds an upper limit, the drain valve 31 automatically opens. When the liquid level in the pool 10 falls below a lower limit, the drain valve 31 automatically closes. This allows the drain valve 31 to open and close automatically. In other embodiments, the drain valve 31 can also be a manual valve that can be opened and closed manually to drain the accumulated water from the pool 10.

[0047] In some embodiments, the drainage system further includes a drain ditch (not shown), which can be a stone gate ditch and communicates with pool 10. This drain ditch can be a stone gate ditch and does not require valves or other structures, remaining open at all times. Connecting pipe 20 and drain pipe 30 serve as supplements to the drain ditch. If the water level in pool 10 is too high and the drain ditch is insufficient to drain the water, drain pipe 30 is opened. If the water level in pool 10 is low and the drain ditch is sufficient to drain the water from pool 10, drain pipe 30 is closed.

[0048] Based on the same technical concept as the first aspect, the second embodiment of the present application provides a drainage method.

[0049] The drainage method provided in the embodiment of the present application includes:

[0050] Step 1: Open the air extraction pipeline 40 to allow the water in the pool 10 to fill the connecting pipeline 20, and close the air extraction pipeline 40;

[0051] Step 2: When the liquid level in the water pool 10 is higher than the upper limit value, open the drain valve 31, and the water in the water pool 10 is discharged through the connecting pipe 20 and the drain pipe 30; when the liquid level in the water pool 10 is lower than the lower limit value, close the drain valve 31 to stop drainage.

[0052] The upper limit and the lower limit can be set according to the volume of the pool 10 and the amount of water, and this application does not impose any specific restrictions.

[0053] Based on the same technical concept as the first aspect, the third embodiment of the present application provides a drainage method based on the drainage system of the first aspect.

[0054] The drainage method of the embodiment of the present application includes:

[0055] Step 1: Open the air extraction pipeline 40 to allow the water in the pool 10 to fill the connecting pipeline 20, and close the air extraction pipeline 40;

[0056] Step 2: When the liquid level in the water pool 10 rises and the rising rate exceeds the set value, the drain valve 31 is opened, and the water in the water pool 10 is discharged through the connecting pipe 20 and the drain pipe 30 until the rising rate of the liquid level in the water pool 10 is lower than the set value or the liquid level in the water pool 10 drops.

[0057] Generally speaking, the drainage ditch is in continuous drainage operation. The rising liquid level in the pool 10 indicates that the drainage flow is less than the flow of water entering the pool 10. It can be understood that the amount of water to be discharged exceeds the drainage capacity of the drainage ditch. At this time, the drainage pipe 30 can be opened to assist drainage to reduce the rate of liquid level rise or to achieve a drop in the liquid level.

[0058] In some embodiments, the opening or closing of the drain valve 31 may be determined not only based on the liquid level alone, or based on the rising liquid level alone. In other embodiments, the opening or closing of the drain valve 31 may also be determined based on both the rising rate of the liquid level in the pool 10 and the liquid level conditions. During drainage, if the liquid level continues to rise, the drain valve 31 may be opened to drain the liquid even if the liquid level in the pool 10 is between the upper and lower limits. In other words, if the liquid level in the pool 10 is between the upper and lower limits and the rising rate of the liquid level is higher than a set value, the controller controls the drain valve 31 to open, draining the connecting pipe 20 and the drain pipe 30.

[0059] The drainage system provided in the present application does not have a drainage pump. When the drainage system is operated for the first time or when the system is repaired and the water in the pipe is drained and restarted, the drain valve 31 is first closed, and then the vacuum pump 42 is started manually or remotely to fill the connecting pipe 20 with water. Then the vacuum pump 42 is closed, and the drain valve 31 is opened. The water in the pool 10 begins to drain through siphon action.

[0060] When the water level in the high-level water tank 10 is lower than a certain water level, such as the lower limit value, the float control switch 11 controls the drain valve 31 to close, so that the connecting pipe 20 is in a state of being filled with water; when the water level in the high-level water tank 10 is higher than the highest control water level, such as the upper limit value, the float control switch 11 controls the drain valve 31 to open, and the drain pipe 30 continues to drain, and the cycle repeats.

[0061] The float control switch 11 controls the opening and closing of the drain valve 31, achieving automatic siphon drainage and achieving the drainage purpose. No drainage pump is required, saving both investment and energy. The materials used in the construction of this system can be different based on actual site requirements, but the connecting pipe 20 must be a hard pipe, which can be metal or non-metallic.

[0062] This invention achieves automatic siphon drainage when the water source is located at a certain distance above the drainage point. This eliminates the need for a drainage pump station, reduces drainage costs, and achieves energy conservation and consumption reduction. Application of this invention in underground mines, irrigation projects, water conservancy projects, and other fields significantly improves drainage performance, achieving investment savings and energy conservation and consumption reduction.

[0063] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0064] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0065] In this application, unless otherwise specified or limited, the terms "connect," "fix," etc. should be understood broadly. For example, "fix" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0066] In addition, the terms "first," "second," and so on, used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0067] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and intent of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A drainage system, characterized in that: include: pool; A drainage pipe, the height of which is lower than that of the pool, and a drainage valve is installed at one end of the drainage pipe; A connecting pipe, with both ends connected to the water pool and the drain valve respectively; The gas extraction pipeline is connected to the connecting pipeline and is used to extract the gas in the connecting pipeline.

2. The drainage system according to claim 1, characterized in that: The air extraction pipeline includes an air extraction pipe and an air extraction pump installed on the air extraction pipe. The air extraction pipe is connected to a side of the connecting pipe close to the drainage pipe.

3. The drainage system according to claim 1, characterized in that: The connecting pipeline includes a first vertical section, a first horizontal section, a second vertical section, and a second horizontal section connected in sequence, the lower end of the first vertical section extends into the pool, and the second horizontal section is connected to the drainage pipeline; The height of the second horizontal section is lower than the height of the pool.

4. The drainage system according to claim 3, characterized in that: The drainage system is applied to a mine, the first horizontal section and the second horizontal section are located in a tunnel of the mine, and the second vertical section is located in a pipe shaft of the mine.

5. The drainage system according to any one of claims 1 to 3, characterized in that: The drain valve is an electrically controlled valve, and the drainage system further includes a controller electrically connected to the electrically controlled valve.

6. The drainage system according to claim 5, characterized in that: The water pool is provided with a liquid level sensor for measuring the liquid level in the water pool, and the liquid level sensor is electrically connected to the controller.

7. The drainage system according to claim 6, characterized in that: The liquid level sensor is a float control switch, and the float control switch is electrically connected to the controller.

8. The drainage system according to any one of claims 1 to 3, characterized in that: It also includes a drainage ditch, which is communicated with the pool.

9. A drainage method based on the drainage system according to any one of claims 6 to 7, characterized in that: The drainage method includes: Open the air extraction pipeline, allow the water in the pool to fill the connecting pipeline, and close the air extraction pipeline; When the liquid level in the water pool is higher than the upper limit value, the drain valve is opened and the water in the water pool is discharged through the connecting pipe and the drain pipe; when the liquid level in the water pool is lower than the lower limit value, the drain valve is closed to stop drainage.

10. A drainage method based on the drainage system according to claim 8, characterized in that: The drainage method includes: Open the air extraction pipeline, allow the water in the pool to fill the connecting pipeline, and close the air extraction pipeline; When the liquid level in the water pool rises and the rising rate exceeds the set value, the drain valve is opened and the water in the water pool is discharged through the connecting pipe and the drain pipe until the rising rate of the liquid level in the water pool is lower than the set value or the liquid level in the water pool drops.

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