An automatic drainage structure for low-level water accumulation in mines based on the siphon principle

Abstract

This utility model discloses an automatic drainage structure for low-level water accumulation in mines based on the siphon principle. It relates to a water pump, including a motor and a front-mounted compartment fixedly installed on the motor. A siphon pipe is fixedly installed inside the front-mounted compartment. The siphon pipe includes a first U-shaped pipe with its ports vertically upwards. One end of the first U-shaped pipe is fixedly connected to a vertical section, and the end of the vertical section extending to the outside of the front-mounted compartment is an output port. The other end of the first U-shaped pipe is fixedly connected to a water inlet port on the front-mounted compartment. A turbine compartment is fixedly installed in the front-mounted compartment, and the turbine compartment is fixedly connected to the first U-shaped pipe and the water inlet port. A turbine inside the turbine compartment is fixedly connected to the output end of the motor. This utility model achieves continuous drainage of low-level water accumulation in the entire mine by alternating between siphoning and active suction, using active suction to compensate for the siphoning, thereby ensuring continuous drainage of low-level water accumulation throughout the mine.

Description

Technical Field

[0001] This utility model relates to water pumps, specifically an automatic drainage structure for low-level water accumulation in mines based on the siphon principle. Background Technology

[0002] In mining operations, low-lying areas of underground tunnels, such as bottom water tanks and the ends of mining areas, often accumulate water due to geological seepage and the accumulation of production water. This accumulated water not only worsens the working environment, corrodes equipment, and affects transportation safety, but its long-term accumulation can also lead to greater safety hazards. Currently, the removal of mine water mainly relies on power-driven pump drainage systems. These systems use electric submersible pumps or centrifugal pumps to pump the water to the surface or upper horizontal water tanks.

[0003] However, this active drainage method has significant drawbacks:

[0004] First, it requires a continuous power supply, and in the complex environment of a mine, there are risks such as circuit failures and power outages, which affect its reliability.

[0005] Secondly, the water pump and its control system require regular maintenance, resulting in high operating costs, and are prone to wear and blockage in mine water containing silt and debris.

[0006] Third, the entire system typically requires manual monitoring or relies on automatic control systems for start-up and shutdown, increasing management complexity and the risk of potential human error. To overcome the energy consumption and dependence issues of powered drainage, non-powered drainage structures based on the siphon principle are being explored in some cases.

[0007] Traditional siphon structures utilize atmospheric pressure differences to continuously transport water across high points through an inverted U-shaped pipe filled with liquid, theoretically requiring no external power.

[0008] However, in practical applications of low-level mine water drainage, traditional siphon drainage methods have significant limitations: the siphon effect cannot be automatically activated, and manual or additional equipment is usually required to vacuum or inject water into the pipeline to form an initial siphon, which is inconvenient to operate deep in mines. Once the water level drops below the intake, allowing air to enter, the siphon will be interrupted, requiring manual intervention to restart it, making it impossible to achieve a fully automated cycle of "automatic shutdown when there is no water and automatic restart when there is water". Utility Model Content

[0009] The purpose of this invention is to provide an automatic drainage structure for low-level water accumulation in mines based on the siphon principle, so as to solve the above-mentioned shortcomings in the prior art.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] An automatic drainage structure for low-level water accumulation in mines based on the siphon principle includes a motor and a front compartment fixedly installed on the motor. A siphon pipe is fixedly installed in the front compartment, and the siphon pipe includes a first U-shaped pipe with its port vertically upward distributed.

[0012] One end of the first U-shaped tube is fixedly connected to a vertical part, and the end of the vertical part extending to the outside of the front cabin is an output port;

[0013] The other end of the first U-shaped pipe is fixedly connected to the water inlet port on the front compartment.

[0014] The front chamber is fixedly equipped with a turbine chamber, which is fixedly connected to the first U-shaped pipe and the water inlet port, and the turbine inside the turbine chamber is fixedly connected to the output end of the motor.

[0015] Preferably, the siphon tube further includes a second U-shaped tube with its port facing opposite to that of the first U-shaped tube;

[0016] The second U-shaped tube is integrally formed with the turbine nacelle.

[0017] Preferably, the arcuate portion of the first U-shaped tube distributed vertically is higher than the output port.

[0018] Preferably, a communicating vessel is fixedly installed at the output end, and one end of the communicating vessel located inside the output end is a tapered part, on which a plurality of communicating strip holes are opened;

[0019] The ports of the communicating vessel are inlaid with metal wire filters.

[0020] Preferably, the communicating vessel is provided with a large-pore filter sponge, the top of which fits into the side of the metal wire filter.

[0021] Preferably, the metal wire filter is divided into arched protrusions according to its structure, and a filter barrel extending toward the large-pore filter sponge is fixedly provided on the upper bottom of the arched protrusions.

[0022] Preferably, the cross-section of the filter barrel is an isosceles trapezoid, and the upper base of the isosceles trapezoid is connected to the upper base of the arched protrusion.

[0023] Preferably, the inner wall of the communicating vessel is fixedly provided with a crossbeam, and a guide post is slidably provided on the crossbeam, with a rubber sealing plate fixedly provided at the end of the guide post.

[0024] Preferably, an equidistant spring is provided between the rubber sealing plate and the crossarm, and in the default state, the equidistant spring causes the rubber sealing plate to be embedded in the connecting strip hole to seal it.

[0025] Preferably, a flow rate sensor is fixedly installed inside the second U-tube or the first U-tube.

[0026] In the above technical solution, the present invention provides an automatic drainage structure for low-level mine water based on the siphon principle, which has the following beneficial effects: Under turbine operation, liquid enters the siphon pipe from the inlet port and is finally discharged from the outlet port. That is, when the water level reaches a set height, it can actively and quickly draw air from the siphon pipe, rapidly creating a vacuum and triggering a siphon effect. This fundamentally solves the problem that traditional non-powered siphon structures require manual water introduction or rely on external vacuum equipment to start, achieving fully automated start and stop of the drainage process, and significantly improving the system's response speed and operational reliability. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0028] Figure 1 A schematic diagram of the overall structure is provided for the embodiments of this utility model;

[0029] Figure 2 This invention provides an exploded structural diagram of the communicating vessel and the forward compartment for embodiments of the present invention;

[0030] Figure 3 A structural schematic diagram of the turbine compartment and siphon is provided for embodiments of this utility model;

[0031] Figure 4 Provided for embodiments of this utility model Figure 3 A schematic diagram of the cross-sectional structure;

[0032] Figure 5 A cross-sectional structural diagram of a communicating vessel is provided for embodiments of this utility model;

[0033] Figure 6 A schematic diagram of the structure of a metal wire filter is provided for an embodiment of this utility model.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Motor; 2. Front compartment; 21. Turbine compartment; 22. Turbine; 3. Siphon; 31. First U-shaped tube; 32. Vertical part; 33. Second U-shaped tube; 4. Communicator; 41. Conical part; 411. Connecting strip hole; 42. Metal wire filter screen; 421. Arched protrusion; 422. Filter screen barrel; 43. Crossbeam; 44. Guide column; 45. Rubber sealing plate; 46. Large-pore filter sponge; 47. Equidistant spring. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0037] Please see Figure 1-6 This utility model provides a technical solution: an automatic drainage structure for low-level water accumulation in mines based on the siphon principle, comprising a motor 1 and a front-mounted compartment 2 fixedly installed at the front end of the motor 1. The front-mounted compartment 2 forms a sealed protective shell, inside which a siphon pipe 3 constituting the main body of the siphon flow channel is fixedly installed. The siphon pipe 3 includes a first U-shaped pipe 31 with its port arranged vertically upward, and the top arc-shaped section of the first U-shaped pipe 31 constitutes the highest point required for siphoning.

[0038] Specifically, one end (i.e., the downstream end) of the first U-shaped pipe 31 is fixedly connected to a vertical section 32, which extends downward and passes through the bottom or side wall of the front compartment 2. The port located on the outside of the compartment is the drainage outlet port of the entire structure. The other end (i.e., the upstream end) of the first U-shaped pipe 31 is fixedly connected to a water inlet port provided on the front compartment 2 for introducing mine water.

[0039] To enable automatic start-up and auxiliary maintenance of the siphon, a turbine compartment 21 is specially installed inside the front compartment 2. This turbine compartment 21 is fixedly connected to the water inlet port and the upstream end of the first U-shaped pipe 31 via flow channels, thus being connected in series in the main water inlet path. The turbine compartment 21 contains a turbine 22, which is fixedly connected to the output end of the motor 1 via a rotating shaft. When the motor 1 starts, it drives the turbine 22 to rotate at high speed.

[0040] As a further embodiment of this utility model, the siphon pipe 3 may also include a second U-shaped pipe 33. The port of the second U-shaped pipe 33 is oriented opposite to that of the first U-shaped pipe 31, and the two are connected in series through a connecting channel in the middle (such as the outlet of the turbine nacelle 21) to form a double-bend siphon path similar to an "M". Preferably, the second U-shaped pipe 33 can be integrally cast with the turbine nacelle 21 to enhance structural strength, ensure sealing, and simplify assembly.

[0041] In order to ensure that the siphon effect can be reliably established and sustained, the highest point of the first U-shaped pipe 31 distributed vertically, that is, its arc-shaped part, must be higher than the horizontal height of the drain outlet port. This is the necessary pressure difference condition for the formation of the siphon.

[0042] To further optimize drainage and prevent clogging, a communicating vessel 4 is fixedly installed at the output port. One end of the communicating vessel 4 that extends into the output port is designed as a tapered portion 41, with multiple longitudinal connecting holes 411 on its sidewall to disperse the water flow. A wire mesh filter 42 is embedded at the inlet port of the communicating vessel 4, serving as the first filtration barrier to intercept larger solid impurities.

[0043] Inside the communicating vessel 4, behind the wire mesh 42, there is a large-pore filter sponge 46. The top shape of this sponge matches the inner curved surface of the wire mesh 42, which can further adsorb fine particles and flocculent matter in the water to achieve secondary filtration. At the same time, its porous structure has low resistance to water flow.

[0044] The structure of the wire mesh filter 42 can be further optimized, with its central area designed as an upwardly arched protrusion 421. A filter basket 422 extending towards the large-pore size filter sponge 46 is fixedly connected to the upper bottom plane of this arched protrusion 421. The side of the filter basket 422 has a mesh structure, preferably with an isosceles trapezoidal cross-section, and the upper base of the trapezoid connects to the upper base of the arched protrusion 421. This design increases the filtration area, guides water flow evenly through the sponge, and prevents large impurities from directly clogging the central flow channel.

[0045] To cope with possible sudden large flow rates or backflow, a crossbeam 43 is fixedly installed on the inner wall of the communicating vessel 4. A guide post 44 slides vertically through the crossbeam 43, and a rubber sealing plate 45 is fixedly connected to one end of the guide post 44 facing the conical part 41. Under normal conditions, an equidistant spring 47 is compressed between the rubber sealing plate 45 and the crossbeam 43. Under the default preload of the spring 47, the rubber sealing plate 45 is pushed and embedded into the communicating strip hole 411 on the conical part 41, sealing it. When the pressure inside the pipe increases abnormally, the water pressure can push the rubber sealing plate 45 backward against the spring force, thereby opening the communicating strip hole 411 as a pressure relief bypass to protect the structural safety.

[0046] To enhance the system's intelligence and reliability, a flow rate sensor (not shown in the figure) can be fixedly installed on the inner wall of the second U-tube 33 or the first U-tube 31. This flow rate sensor is used to monitor the liquid flow state within the siphon tube 3 in real time. When the siphon tube 3 cannot automatically pump out the liquid through the siphon, the motor 1 starts running.

[0047] Working principle:

[0048] Mine water is slowly injected into the front chamber 2 through the inlet port, gradually filling the turbine chamber 21 and the lower part of the siphon pipe 3. At this time, the top of the first U-shaped pipe 31 is filled with air, and the siphon has not yet formed. The connector 4 at the output end is in normal filtration mode, and the rubber sealing plate 45 blocks the connecting strip hole 411 under the action of the spring 47.

[0049] When the water level continues to rise, or when the flow rate sensor detects that the liquid in the siphon tube has been stagnant for a long time, the control system will trigger motor 1 to start. Motor 1 drives turbine 22 to rotate at high speed. Turbine 22 acts like a vacuum pump, quickly drawing air out of the siphon tube 3 (including the first U-shaped tube 31 and the second U-shaped tube 33) through the water inlet port or a specific exhaust channel, creating negative pressure inside the tube. External atmospheric pressure forces the water into the pipe until the water flow passes the highest point of the first U-shaped tube 31. Once the water flow continuously passes the highest point and flows to the output end, the complete siphon effect is formed, and the system enters a highly efficient self-sustaining drainage state. At this time, motor 1 can stop running (for example, automatically shutting off after running for about 50 seconds to ensure siphon stability), and the drainage work continues by the siphon principle, thereby saving energy.

[0050] Under the siphon effect, the accumulated water is continuously pumped out. The water flows sequentially through the turbine chamber 21 (at which time the turbine may be stationary or slowly rotating due to the water flow), the first U-shaped pipe 31, the vertical section 32, and finally out of the communicating vessel 4. When flowing through the communicating vessel 4, the water first undergoes coarse filtration through the wire mesh filter 42 and the filter barrel 422, and then undergoes fine filtration through the large-pore filter sponge 46, effectively preventing blockage of the drainage pipe and the downstream environment.

[0051] During the drainage process, if the output end is temporarily blocked due to external reasons, causing the pressure inside the pipe to rise, when the pressure exceeds the preload of the spring 47, it will push the rubber sealing plate 45 to move backward, opening the connecting strip hole 411 to form an additional drainage channel, preventing the components from being damaged by excessive pressure inside the pipe.

[0052] When the water level drops below the inlet, air enters the siphon pipe, disrupting the siphon effect and stopping drainage. The flow rate sensor detects the cessation of flow, and the system returns to standby mode. Once the water level rises to a certain height, motor 1 can be restarted via a timer or based on a water level signal to repeat the vacuuming process, establishing a new siphon cycle and thus achieving fully automatic, intermittent intelligent drainage.

[0053] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A mine low-lying water automatic discharge structure based on the siphon principle, comprising a motor (1), characterized in that, It also includes a front compartment (2) fixedly installed on the motor (1), and a siphon tube (3) is fixedly installed inside the front compartment (2). The siphon tube (3) includes a first U-shaped tube (31) with its port vertically upward distributed. One end of the first U-shaped tube (31) is fixedly connected to a vertical part (32), and the vertical part (32) extends to the outside of the front cabin (2) as an output port; The other end of the first U-shaped pipe (31) is fixedly connected to the water inlet port on the front compartment (2); The front compartment (2) is fixedly equipped with a turbine compartment (21), which is fixedly connected to the first U-shaped pipe (31) and the water inlet port, and the turbine (22) inside the turbine compartment (21) is fixedly connected to the output end of the motor (1).

2. The automatic drainage structure for low-level mine water based on the siphon principle according to claim 1, characterized in that, The siphon tube (3) also includes a second U-shaped tube (33) with its port facing opposite to that of the first U-shaped tube (31); The second U-shaped tube (33) is integrally formed with the turbine compartment (21).

3. The automatic low-lying water drainage structure based on the siphon principle according to claim 2, characterized in that, The arc-shaped portion of the first U-shaped tube (31) distributed vertically is higher than the output port.

4. The automatic low-lying water drainage structure based on the siphon principle according to claim 3, characterized in that, The output end is fixedly installed with a communicating vessel (4), and one end of the communicating vessel (4) inside the output end is a tapered part (41), and the tapered part (41) is provided with a plurality of communicating strip holes (411); The port of the communicating vessel (4) is inlaid with a wire mesh (42).

5. The automatic drainage structure for low-level mine water based on the siphon principle according to claim 4, characterized in that, The communicating vessel (4) is provided with a large-pore filter sponge (46), the top of which fits into the side of the metal wire filter (42).

6. The automatic drainage structure for low-level mine water based on the siphon principle according to claim 5, characterized in that, The metal wire filter (42) is divided into an arched protrusion (421) according to its structure, and a filter barrel (422) extending toward the large-pore filter sponge (46) is fixedly provided on the upper bottom of the arched protrusion (421).

7. The automatic drainage structure for low-level mine water based on the siphon principle according to claim 6, characterized in that, The filter barrel (422) has an isosceles trapezoidal cross section, and the upper base of the isosceles trapezoid is connected to the upper base of the arched protrusion (421).

8. The automatic drainage structure for low-level mine water based on the siphon principle according to claim 7, characterized in that, The inner wall of the communicating vessel (4) is fixedly provided with a crossbeam (43), and a guide column (44) is slidably provided on the crossbeam (43). A rubber sealing plate (45) is fixedly provided at the end of the guide column (44).

9. The automatic drainage structure for low-level water accumulation in mines based on the siphon principle according to claim 8, characterized in that, An equidistant spring (47) is provided between the rubber sealing plate (45) and the crossbeam (43). In the default state, the equidistant spring (47) causes the rubber sealing plate (45) to be embedded in the connecting strip hole (411) to seal.

10. The automatic drainage structure for low-level mine water based on the siphon principle according to claim 2, characterized in that, A flow rate sensor is fixedly installed inside the second U-tube (33) or the first U-tube (31).

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