Mine water diffusion flow detection device and mine water diffusion flow detection method

Abstract

The application provides a mine water diffusion flow detection device and a mine water diffusion flow detection method. The mine water diffusion flow detection device comprises a support, a rotating shaft arranged on the support, a fan blade rotatably arranged on the rotating shaft and rotated under the pushing of the water flow, a generator in driving connection with the fan blade, the generator converts the rotating force of the fan blade into electric potential energy, different rotating speeds of the fan blade generate different sizes of electric potential energy, and the electric potential signal of the generator is transmitted to an external device to represent the water flow velocity; and a temperature sensor connected with the support to measure the temperature of the water flow. The application solves the problem in the prior art that the flow velocity and diffusion of the mine water in the underground reservoir cannot be effectively analyzed.

Description

Technical Field

[0001] This invention relates to the field of detection equipment technology, and more specifically, to a detection device and method for detecting the diffusion and flow of mine water. Background Technology

[0002] Normally, under the influence of an external force, a coil moves in a magnetic field, cutting magnetic field lines and generating an induced electromotive force. If the internal coil forms a closed loop with the external circuit through brushes, a current can be generated in this circuit. Currently, common wind turbines, hydroelectric generators, waterwheels, etc., all utilize the above principle to generate electricity.

[0003] Existing technologies are unclear about the flow and diffusion of mine water after it is injected into an underground reservoir, and cannot effectively analyze the flow rate and diffusion of mine water within the underground reservoir. Summary of the Invention

[0004] The main objective of this invention is to provide a detection device and method for detecting the diffusion and flow of mine water, so as to solve the problem that the prior art cannot effectively analyze the flow rate and diffusion of mine water in underground reservoirs.

[0005] To achieve the above objectives, according to one aspect of the present invention, a detection device for the diffusion flow of mine water is provided, comprising: a support; a rotating shaft disposed on the support; fan blades rotatably disposed on the rotating shaft and rotating under the impingement of water flow; a generator connected to the fan blades for driving, wherein the generator converts the rotational force of the fan blades into electromotive force, and fan blades with different rotational speeds generate different amounts of electromotive force, and the electromotive force signal of the generator is transmitted to an external device to characterize the water flow velocity; and a temperature sensor connected to the support to measure the temperature of the water flow.

[0006] Furthermore, the rotating shaft is rotatably mounted on the bracket, and the rotating shaft is arranged laterally, while the axis of rotation of the rotating shaft is arranged longitudinally.

[0007] Furthermore, the bracket has a circular structure, with the rotating shaft located inside the circular structure. Both ends of the rotating shaft are movably connected to the circular structure, allowing the rotating shaft to rotatably around the circumference of the circular structure.

[0008] Furthermore, the rotating shaft is arranged radially along the circular structure, and the rotating shaft passes through the center of the circular structure.

[0009] Furthermore, the detection device for the diffusion and flow of mine water also includes a yaw device, which is electrically connected to a generator and connected to a shaft drive, and drives the shaft to rotate under the power supply of the generator.

[0010] Furthermore, the detection device for the diffusion and flow of mine water also includes: a flow vane for measuring the direction of water flow, the flow vane being mounted on a support; and a distance sensor, the distance sensor being mounted on a rotating shaft, the distance sensor being used to monitor the distance between the yaw device and the flow vane, and controlling the yaw device to rotate the rotating shaft and change the direction of the fan blades based on the distance.

[0011] Furthermore, there are multiple yaw devices and distance sensors, and both ends of the rotating shaft are equipped with yaw devices and distance sensors; multiple flow indicators are provided, and flow indicators are provided on both opposite sides of the support.

[0012] Furthermore, the fan blades have through holes, the shaft passes through the through holes, and at least a portion of the generator is located between the inner wall of the through holes and the outer wall of the shaft.

[0013] Furthermore, the temperature sensor is located below the fan blades and avoids the rotation path of the fan blades.

[0014] According to another aspect of the present invention, a method for detecting the diffusion flow of mine water is provided, which employs the aforementioned mine water diffusion flow detection device. The method includes: closing all outlets of an underground reservoir or opening a predetermined number of outlets according to different working conditions; injecting heated high-temperature water into the inlet; placing the mine water diffusion flow detection device at the inlet; and detecting the water flow velocity and temperature under the working conditions using the mine water diffusion flow detection device.

[0015] By employing the technical solution of this invention, a generator and fan blades are combined. The fan blades rotate under the impetus of the water flow, and this rotation is transmitted to the generator, becoming the mechanical energy required for power generation. The generator then converts this mechanical energy into electrical potential energy to generate electricity. Under different water flow velocities, the fan blades' rotational speed and force vary, resulting in different amounts of mechanical energy and consequently, different amounts of electrical potential energy converted by the generator. This electrical potential energy can be used to characterize the water flow velocity. The generator transmits the electrical potential signal via cable to ground-based equipment, which displays the water flow velocity for personnel monitoring. Simultaneously, a temperature sensor is installed on the support frame to monitor the water temperature, which is also transmitted via cable to ground-based equipment for display. This setup, through the combination of fan blades and generator, detects the water flow velocity, and simultaneously, through the temperature sensor, detects the water temperature, thereby enabling real-time monitoring of basic data such as water temperature and flow velocity in underground reservoirs. The overall structure of the device is simple, and the detection results are accurate and reliable. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0017] Figure 1 A top view of the mine water diffusion flow detection device of the present invention is shown;

[0018] Figure 2 It shows Figure 1 The main view;

[0019] Figure 3 It shows Figure 2 Side view.

[0020] The above figures include the following reference numerals:

[0021] 10. Support frame; 20. Shaft; 30. Fan blade; 40. Generator; 50. Temperature sensor; 60. Yaw device; 70. Directional indicator; 80. Distance sensor. Detailed Implementation

[0022] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0024] In this invention, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0025] To address the problem that existing technologies cannot effectively analyze the flow rate and diffusion of mine water in underground reservoirs, this invention provides a detection device and method for detecting the diffusion and flow of mine water.

[0026] like Figures 1 to 3The device shown is for detecting the diffusion flow of mine water, including a support 10, a rotating shaft 20, a fan blade 30, a generator 40, and a temperature sensor 50. The rotating shaft 20 is mounted on the support 10. The fan blade 30 is rotatably mounted on the rotating shaft 20 and rotates under the drive of the water flow. The generator 40 is driven by the fan blade 30 and converts the rotational force of the fan blade 30 into electrical potential energy. The fan blade 30 at different rotational speeds generates different amounts of electrical potential energy. The electrical potential signal of the generator 40 is transmitted to external equipment to characterize the water flow velocity. The temperature sensor 50 is connected to the support 10 to measure the temperature of the water flow.

[0027] This embodiment employs a generator 40 and a fan blade 30 working together. The fan blade 30 rotates under the propulsion of the water flow, and this rotation is transmitted to the generator 40, becoming the mechanical energy required for power generation. The generator 40 converts this mechanical energy into electrical potential energy to generate electricity. Under different water flow velocities, the rotational speed and force of the fan blade 30 vary, resulting in different amounts of mechanical energy. Consequently, the electrical potential energy converted by the generator 40 also varies. The magnitude of this electrical potential energy can be used to characterize the water flow velocity. The generator 40 transmits the electrical potential signal via cable to a device on the ground, where the water flow velocity is displayed for monitoring. Simultaneously, a temperature sensor 50 is installed on the support 10 to monitor the water temperature, which is also transmitted via cable to the ground-based device for display. This configuration, using the fan blade 30 and generator 40 to detect water flow velocity and the temperature sensor 50 to detect water temperature, enables real-time monitoring of basic data such as water temperature and flow velocity in an underground reservoir. The overall structure of the device is simple, and the detection results are accurate and reliable.

[0028] In this embodiment, the rotating shaft 20 is rotatably mounted on the support 10. It should be noted that the rotation of the rotating shaft 20 is not a rotation of its own axis, but a lateral rotation. Specifically, the rotating shaft 20 is positioned laterally so that it can float on the water surface. The rotation axis of the rotating shaft 20 is positioned longitudinally and is approximately located in the middle of the rotating shaft 20. In this way, the rotating shaft 20 rotates laterally as a whole. In conjunction with the fan blades 30 mounted on the rotating shaft 20, the rotating shaft 20 can drive the fan blades 30 to adjust their position, ensuring the effect of the water flow on the fan blades 30, thereby ensuring the detection results.

[0029] To ensure the smooth rotation of the rotating shaft 20, the bracket 10 in this embodiment has a circular structure, more specifically, a perfect circle. The rotating shaft 20 is set inside the circular structure, and both ends of the rotating shaft 20 are movably connected to the circular structure. The two ends of the rotating shaft 20 can be provided with structures such as claws or guide rail grooves. Through these structures, the rotating shaft 20 can be connected to the bracket 10 to support the rotating shaft 20 and its components such as the fan blade 30. At the same time, the rotating shaft 20 can rotate around the circumference of the circular structure to adjust the direction of the fan blade 30.

[0030] Preferably, in this embodiment, the rotating shaft 20 is arranged radially along the circular structure, and the rotating shaft 20 passes through the center of the circular structure. That is, the rotating shaft 20 is the diameter of the circular structure. In this way, the rotation of the rotating shaft 20 is smoother and the movement is more reliable.

[0031] Of course, in addition to the method described in this embodiment, other connection methods can be used between the rotating shaft 20 and the bracket 10. For example, the rotating shaft 20 can be rotatably connected to the bracket 10 at only one end, and the other end is a cantilever free end, etc.

[0032] The rotation direction adjustment of the fan blades 30 and the rotating shaft 20 can be achieved either through the action of water flow or through additional components. To ensure the reliability of the fan blades 30 facing the water flow, this embodiment adopts the second method, that is, using a separate component to drive the rotation of the rotating shaft 20 and the fan blades 30 as a whole. Specifically, the detection device for mine water diffusion flow also includes a yaw device 60, which includes a motor and corresponding transmission components. The yaw device 60 is electrically connected to the generator 40, so that the power generated by the generator 40 can be supplied to the yaw device 60, eliminating the need for an additional power supply and avoiding the hassle of power supply replacement and charging, thus achieving efficient use of electrical energy. At the same time, the yaw device 60 is also driven by the rotating shaft 20. The two can achieve drive cooperation through various transmission components. Thus, when the motor is activated, the power of the motor is transmitted to the rotating shaft 20 through the transmission components, thereby driving the rotating shaft 20 to rotate, realizing the adjustment of the position of the rotating shaft 20 and the fan blades 30, ensuring that the fan blades 30 are always facing the water flow, and thus ensuring the accuracy of the detection results under the action of the water flow.

[0033] To ensure the accuracy of the rotation adjustment of the shaft 20 and the fan blades 30, the mine water diffusion flow detection device in this embodiment also includes a flow vane 70 and a distance sensor 80. The flow vane 70 is mounted on the support 10 and is used to measure the direction of water flow. The distance sensor 80 is mounted on the shaft 20 and is used to monitor the distance between the yaw device 60 and the flow vane 70. Based on the distance, the distance sensor controls the yaw device 60 to rotate the shaft 20 and change the direction of the fan blades 30.

[0034] Optionally, multiple yaw devices 60 and distance sensors 80 are provided, and both ends of the rotating shaft 20 are equipped with yaw devices 60 and distance sensors 80. In this embodiment, two yaw devices 60 and two distance sensors 80 are provided, each located at one end of the rotating shaft 20. This allows the two yaw devices 60 to simultaneously drive both ends of the rotating shaft 20, resulting in balanced forces and stable rotation of the shaft 20. Correspondingly, multiple flow indicators 70 are provided, with flow indicators 70 located on opposite sides of the support 10. In this embodiment, two flow indicators 70 are also provided, located on opposite sides of the circular support 10. These two flow indicators 70 cooperate with the two distance sensors 80, with each distance sensor 80 monitoring the distance between one yaw device 60 and one flow indicator 70, ensuring the reliability of the detection results and thus the reliability of the fan blade 30's directional adjustment. In this embodiment, the distance sensors 80 can be infrared distance sensors or similar, as needed.

[0035] During detection, the flow vane 70 can move, while the distance between the flow vane 70 and the distance sensor 80 remains fixed. The flow vane 70, the distance sensor 80, and the center of the support 10 form an isosceles right triangle. When the flow vane 70 is redirected by the water flow, the straight-line distance between the flow vane 70 and the yaw device 60 decreases. The distance sensor 80 detects this and then controls the yaw device 60 to operate.

[0036] In this embodiment, the fan blade 30 has through holes extending through both sides along its own axial direction. The rotating shaft 20 passes through these through holes. Preferably, the fan blade 30 is located at the middle of the length of the rotating shaft 20, thus avoiding interference with the support 10 and allowing for better interaction with the water flow. In this embodiment, at least a portion of the generator 40 is disposed within the through holes, between the inner wall of the through holes and the outer wall of the rotating shaft 20. This allows the fan blade 30 to rotate relative to the rotating shaft 20 when rotating along its own axis, thereby generating electromotive force through the components between the fan blade 30 and the rotating shaft 20. The specific power generation principle and structure are not improvements of this embodiment; existing power generation equipment can be used, and will not be elaborated further here.

[0037] The bracket 10 in this embodiment has a circular structure when viewed from above, and also has a certain height when viewed from the front. Specifically, the bracket 10 in this embodiment adopts a frame structure, with a circular frame at the top for connecting to components such as the rotating shaft 20 and the flow indicator 70. The bottom of the circular frame has a downward-extending connecting section, which can be one or more. The temperature sensor 50 is installed on the connecting section. In this way, the temperature sensor 50 is located below the fan blade 30, and the distance between the temperature sensor 50 and the rotating shaft 20 is greater than the maximum rotation radius of the fan blade 30. This allows the temperature sensor 50 to avoid the rotation path of the fan blade 30, preventing interference and ensuring that both the temperature sensor 50 and the fan blade 30 can stably complete their respective operations. The number of temperature sensors 50 can be set as needed. During installation, the temperature sensors 50 can be directly mounted on the bracket 10, or they can be mounted on rods, or rods can be mounted on the bracket 10, etc.

[0038] Optionally, the number of fan blades 30 can be selected as needed; one or more can be set. Correspondingly, the number of rotating shafts 20 and related components can be increased as needed. One or more brackets 10 can be set, and the brackets 10 can be connected to form a whole. In actual use, multiple detection devices can be used simultaneously.

[0039] This embodiment also provides a method for detecting the diffusion and flow of mine water. Using the aforementioned mine water diffusion and flow detection device, the method includes: closing all outlets of the underground reservoir or opening a predetermined number of outlets according to different operating conditions; injecting heated high-temperature water into the inlet; and placing the mine water diffusion and flow detection device at the inlet. The detection device then detects the water flow velocity and temperature under the specified operating conditions. When there are multiple inlets, hot water injection and placement of the mine water diffusion and flow detection device are performed at each inlet.

[0040] Before implementing the above method, it is necessary to first determine the main monitoring indicators. In this embodiment, the key indicator is temperature. The temperature of the mine water in the underground reservoir is around 25°C at room temperature. Based on this, monitoring will be conducted according to the acquired data. Then, based on the previous basic data of coal mining and the progress of the working face, a survey will be conducted to determine the inlet, outlet, and basic morphological characteristics of the underground reservoir. For ease of explanation, this embodiment uses a rectangular underground reservoir as an example, with one inlet (point A) and two outlets (points B1 and B2).

[0041] The temperature sensors 50 are arranged along the excavation direction of the working face and the inlet and outlet directions of the underground reservoir, i.e., the A-B1 and A-B2 directions. The more temperature sensors 50 arranged, the better. At least n points should be arranged along the straight line direction of the inlet and outlet, where n>2.

[0042] Based on the existing water storage conditions within the underground reservoir, a map showing the water temperature distribution within the reservoir is drawn, categorized into the following situations.

[0043] Operating Condition 1: Close the outlet of the underground reservoir and inject heated high-temperature water (e.g., 50°C) into the inlet of the underground reservoir. Record the temperature distribution and flow velocity information within the underground reservoir under this condition; this condition represents the vertical diffusion of temperature.

[0044] Condition 2: Open one of the underground reservoir outlets, such as B1, and inject heated high-temperature water, such as 50°C, from the underground reservoir inlet. Record the temperature distribution and flow rate information in the underground reservoir under this condition.

[0045] Condition 3: Open another underground reservoir outlet, such as B2, and inject heated high-temperature water, such as 50°C, into the underground reservoir inlet. Record the temperature distribution and flow velocity information in the underground reservoir under this condition; conditions 2 and 3 are the diffusion conditions of each channel respectively.

[0046] Condition 4: Simultaneously open the outlets of two underground reservoirs and inject heated high-temperature water (e.g., 50°C) from the inlets of the underground reservoirs. Record the temperature distribution and flow velocity information within the underground reservoirs under this condition; this condition represents the competitive diffusion situation of each channel.

[0047] In this way, the diffusion range of mine water after it is injected into the underground reservoir can be sensed from the temperature distribution in the underground reservoir, while the flow velocity information can reflect the diffusion speed of the injected mine water.

[0048] It should be noted that "multiple" in the above embodiments refers to at least two.

[0049] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0050] 1. This solves the problem that existing technologies cannot effectively analyze the flow rate and diffusion of mine water in underground reservoirs;

[0051] 2. By combining the fan blades with the generator, the magnitude of the electric potential energy is used to characterize the water flow velocity, thereby realizing the detection of water flow velocity. A temperature sensor is used to detect the water temperature, thereby enabling real-time monitoring of basic data such as water temperature and flow velocity in the underground reservoir.

[0052] 3. The device has a simple overall structure and provides accurate and reliable test results;

[0053] 4. The fan blade direction can be automatically adjusted to ensure it faces the water flow direction and guarantee detection accuracy.

[0054] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0055] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0056] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A detection device for the diffusion and flow of mine water, characterized in that, include: Support (10); A rotating shaft (20) is mounted on the bracket (10); Fan blades (30) are rotatably mounted on the rotating shaft (20) and rotate under the push of the water flow; A generator (40) is connected to the fan blade (30) in a drive. The generator (40) converts the rotational force of the fan blade (30) into electrical potential energy. The fan blade (30) at different rotational speeds generates different amounts of electrical potential energy. The electrical potential signal of the generator (40) is transmitted to an external device to characterize the water flow rate. The fan blade (30) has a through hole, the rotating shaft (20) passes through the through hole, at least a portion of the generator (40) is located between the inner wall of the through hole and the outer wall of the rotating shaft (20); a temperature sensor (50) is connected to the bracket (10) to measure the temperature of the water flow; The rotating shaft (20) is rotatably mounted on the bracket (10), and the rotating shaft (20) is arranged laterally, while the axis of rotation of the rotating shaft (20) is arranged longitudinally. The detection device for the diffusion flow of mine water also includes a yaw device (60), which is electrically connected to the generator (40) and driven to rotate the shaft (20) under the power supply of the generator (40). The detection device for the diffusion and flow of mine water also includes: A flow vane (70) for measuring the direction of water flow is mounted on the bracket (10); Distance sensor (80) is disposed on the rotating shaft (20). The distance sensor (80) is used to monitor the distance between the yaw device (60) and the flow indicator (70), and to control the yaw device (60) to rotate the rotating shaft (20) and change the direction of the fan blade (30) according to the distance. The flow indicator (70) is movably mounted on the bracket (10), and the distance between the flow indicator (70) and the distance sensor (80) is fixed; The flow indicator (70) is movable, the distance between the flow indicator (70) and the distance sensor (80) is fixed, and the center of the flow indicator (70), the distance sensor (80) and the support (10) form an isosceles right triangle; The bracket (10) has a circular structure, the rotating shaft (20) is disposed inside the circular structure, and both ends of the rotating shaft (20) are movably connected to the circular structure so that the rotating shaft (20) can be rotatably disposed around the circumference of the circular structure; The bracket (10) adopts a frame structure with a circular frame at the top for connecting with the rotating shaft (20) and the flow indicator (70), and the bottom of the circular frame has a downwardly extending connecting section, which has one or more sections, and the temperature sensor (50) is mounted on the connecting section.

2. The detection device for mine water diffusion flow according to claim 1, characterized in that, The rotating shaft (20) is arranged radially along the circular structure, and the rotating shaft (20) passes through the center of the circular structure.

3. The detection device for mine water diffusion flow according to claim 1, characterized in that, There are multiple yaw devices (60) and distance sensors (80), and both ends of the rotating shaft (20) are provided with yaw devices (60) and distance sensors (80). Multiple flow indicators (70) are provided, and the flow indicators (70) are provided on both opposite sides of the bracket (10).

4. The detection device for mine water diffusion flow according to claim 1, characterized in that, The temperature sensor (50) is located below the fan blade (30) and avoids the rotation path of the fan blade (30).

5. A method for detecting the diffusion flow of mine water, characterized in that, The detection device for mine water diffusion flow according to any one of claims 1 to 4, wherein the detection method for mine water diffusion flow includes: Depending on the different operating conditions, all outlets of the underground reservoir can be closed or a predetermined number of outlets can be opened. Heated high-temperature water can be injected into the inlet, and the detection device for the diffusion and flow of mine water can be placed at the inlet to detect the flow rate and temperature of the water under the operating conditions.

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