Coal mine water gushing flow rapid measuring device

Abstract

The utility model provides a coal mine water gushing flow fast measuring device relates to coal mine water gushing measurement technical field, includes water inlet pipe, cyclone cylinder, connecting pipe and water outlet pipe in proper order along the water flow direction, water inlet pipe penetrates cyclone cylinder cylinder wall top edge and sets up along cyclone cylinder side edge tangent direction, cyclone cylinder cylinder mouth is downward and the connecting pipe one end penetrates cyclone cylinder upward cylinder bottom center, the other end of connecting pipe is inserted with water inlet of water outlet pipe, the surface of water outlet pipe integrative mould has the connecting box, and the cyclone cylinder of setting can utilize centrifugal force and separate impurity, prevent the impact of impurity to turbine blade, can guarantee turbine to respond the change of water flow speed fastly, can detect the rotating speed of turbine in real time accurately again through setting rotating speed sensor, can adapt to the complex environment of coal mine downhole, ensure that can also work stably under the harsh conditions, provide sustained, reliable data support for the monitoring of water gushing flow rate.

Description

Technical Field

[0001] This utility model relates to the field of coal mine water inflow measurement technology, and in particular to a rapid measurement device for coal mine water inflow. Background Technology

[0002] Rapid measurement of coal mine water inflow is a core aspect of coal mine safety production and disaster prevention. Its importance permeates the entire process of "prevention-emergency response-treatment-production assurance," directly impacting the safety of underground personnel, mine property, and normal production order. Therefore, an existing coal mine water inflow observation tool, published under the number CN216246580U, utilizes a method where water flowing into the inlet pipe causes a semi-circular plate to rotate. This rotation simultaneously drives a rotating plate, which in turn rotates a drive shaft. This shaft, in turn, drives a lead screw, causing the lower plate to rise synchronously. As the lower plate rises, a scale on the support column displays the distance traveled. An infrared sensor at the top opening of the observation cylinder measures the time it takes for the lower plate to reach its highest point. By analyzing the rising time and the distance displayed on the scale, the rotation rate of the lead screw can be determined, thus enabling the observation of the water inflow.

[0003] However, the flow monitoring of this tool relies on the continuous rise of the lower plate and the coordination of an infrared sensor. The infrared sensor is installed at the top opening of the observation tube, and its core function is to measure the time it takes for the lower plate to rise from its initial position to its highest point. Combined with the fixed stroke of the support scale, the rising rate of the lower plate is calculated, and then the inrush flow rate is inferred. However, once the lower plate reaches the top, it cannot continue to rise due to the limited space at the top of the observation tube. This means that even if the semicircular plate continues to rotate due to the inrush and the lead screw continues to rotate, it cannot push the lower plate to move further. The sensor has no new time parameter input, the flow calculation loses its core basis, and the monitoring process is forced to stop. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a rapid measurement device for coal mine water inflow.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a rapid measurement device for coal mine water inflow, comprising, in sequence along the water flow direction, an inlet pipe, a vortex cylinder, a connecting pipe, and an outlet pipe. The inlet pipe penetrates the top edge of the vortex cylinder wall and is arranged tangentially along the side edge of the vortex cylinder. The vortex cylinder opening faces downward, and one end of the connecting pipe penetrates the center of the upward-facing bottom of the vortex cylinder. The other end of the connecting pipe is inserted into the inlet of the outlet pipe. A connecting box is integrally formed on the surface of the outlet pipe. A turbine is rotatably connected inside the connecting box. A portion of the turbine blades are located inside the outlet pipe, and the top tip of the turbine blade shaft penetrates the top of the connecting box and is connected to a speed sensor fixedly installed on the connecting box. A coaxially distributed conical shroud is provided at the downward-facing opening of the vortex cylinder, and a lifting ring for conforming to the surface of the conical shroud is slidably installed on the inner wall of the vortex cylinder opening.

[0006] Preferably, the upper surface of the lifting ring is a conical surface with the tip of the conical surface facing downwards, and a plurality of electric push rods are provided between the bottom surface of the lifting ring and the inner wall of the cyclone cylinder.

[0007] Preferably, the electric push rod is arranged parallel to the central axis of the cyclone drum, and the cylinder body and telescopic end of the electric push rod are respectively connected to the inner wall of the cyclone drum and the bottom surface of the lifting ring.

[0008] Preferably, both the water inlet pipe and the bottom of the connecting box are provided with several support rods, which are used to insert into the coal mine water guiding channel, and the downward-facing opening of the vortex cylinder is fitted with the bottom of the water guiding channel with a clearance.

[0009] Preferably, the inlet of the swirl tube and the bottom edge of the conical shroud both extend downwards, and an annular groove is formed between the two extensions. Several partitions are fixedly installed in the annular groove and arranged in a circular array around the central axis of the conical shroud. A compartment for storing impurities is formed in the annular groove between two adjacent partitions.

[0010] Preferably, the groove opening below the annular groove is covered by an annular plate, and a plurality of electrically operated telescopic rods are provided between the inner side of the annular plate and the bottom surface of the conical cover.

[0011] Preferably, the electric telescopic rod is arranged parallel to the central axis of the conical cover, and the cylinder body and telescopic end of the electric telescopic rod are respectively connected to the bottom surface of the conical cover and the inner side of the ring plate.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] 1. In this utility model, the vortex tube can use centrifugal force to separate impurities and prevent impurities from impacting the turbine blades. Therefore, it can ensure that the turbine can respond quickly to changes in water flow velocity. Furthermore, by setting a speed sensor, the turbine speed can be detected in real time and accurately. It can adapt to the complex environment in coal mines and ensure stable operation under harsh conditions, providing continuous and reliable data support for monitoring water inflow velocity.

[0014] 2. In this invention, the lifting mechanism is controlled by an electric push rod, allowing the device to descend to fit the surface of the conical shroud when needed. This isolates the space on the bottom side of the cyclone drum, causing precipitated impurities to accumulate on the conical shroud for easy and concentrated discharge. This prevents excessive accumulation of impurities within the cyclone drum, which could affect the normal operation of the device. The conical surface design also helps impurities slide down the inclined plane onto the surface of the conical shroud, improving the efficiency of impurity collection and discharge. Attached Figure Description

[0015] Figure 1 A three-dimensional structural schematic diagram of the rapid measurement device for coal mine water inflow is provided for this utility model.

[0016] Figure 2 This utility model proposes a rapid measurement device for coal mine water inflow. Figure 1 A schematic diagram of the cross-sectional structure;

[0017] Figure 3 This utility model proposes a rapid measurement device for coal mine water inflow. Figure 2 A schematic diagram of the right-side view structure;

[0018] Figure 4 This utility model proposes a rapid measurement device for coal mine water inflow. Figure 3 A schematic diagram of the structure viewed from below.

[0019] Legend: 1. Inlet pipe; 2. Support rod; 3. Swirl tube; 4. Outlet pipe; 5. Connecting pipe; 6. Connecting box; 7. Speed ​​sensor; 8. Annular groove; 9. Ring plate; 10. Electric push rod; 11. Lifting ring; 12. Conical cover; 13. Turbine; 14. Electric telescopic rod; 15. Partition; 16. Compartment. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] like Figures 1-4As shown, the rapid measurement device for coal mine water inflow includes, in sequence along the water flow direction, an inlet pipe 1, a vortex cylinder 3, a connecting pipe 5, and an outlet pipe 4. The inlet pipe 1 penetrates the top edge of the vortex cylinder 3 wall and is positioned tangentially to the side of the vortex cylinder 3. The opening of the vortex cylinder 3 faces downwards, and one end of the connecting pipe 5 penetrates the center of the bottom of the vortex cylinder 3 facing upwards. The other end of the connecting pipe 5 is inserted into the inlet of the outlet pipe 4. A connecting box 6 is integrally formed on the surface of the outlet pipe 4. A turbine 13 is rotatably connected inside the connecting box 6. A portion of the blades of the turbine 13 are located inside the outlet pipe 4, and the top tip of the turbine 13 blade shaft penetrates the top of the connecting box 6 and is connected to a speed sensor 7 fixedly installed on the connecting box 6. In actual use, this device is installed in a water guiding channel in a coal mine for guiding and discharging water inflow. A portion of the water flowing in the guiding channel is diverted and enters the vortex cylinder 3 along the inlet pipe 1. It flows downwards in a spiral shape on the inner wall of the vortex cylinder 3, and the centrifugal force generated during the spiral flow can... Impurities in the water are flung against the inner wall of the vortex cylinder 3 and then deposited downwards under gravity, thus removing impurities. The water after impurity removal overflows and enters the drain pipe through the connecting pipe 5. In the drain pipe, the turbine 13 of the connecting box 6 is driven to rotate. The rotation speed of the turbine 13 is detected in real time by the speed sensor 7, which reflects the flow velocity in the drain pipe and the flow velocity of the water in the water guide channel. The downward-facing opening of the vortex cylinder 3 is provided with a coaxially distributed conical cover 12, and a lifting ring 11 for adhering to the surface of the conical cover 12 is slidably installed on the inner wall of the opening of the vortex cylinder 3. The deposited impurities slide down the inclined surface of the upper surface of the lifting ring 11 to the surface of the conical cover 12, and then slide down along the gap between the conical cover 12 and the lifting ring 11 to settle at the bottom of the vortex cylinder 3, preventing them from entering the connecting pipe 5 with the water flow. By setting up the vortex cylinder 3, impurity removal can be guaranteed and impact on the turbine 13 blades can be prevented.

[0023] The upper surface of the lifting ring 11 is a conical surface with the tip of the conical surface pointing downwards. Several electric push rods 10 are arranged between the bottom surface of the lifting ring 11 and the inner wall of the vortex cylinder 3. The electric push rods 10 are arranged parallel to the central axis of the vortex cylinder 3, and the cylinder body and telescopic end of the electric push rod 10 are respectively connected to the inner wall of the vortex cylinder 3 and the bottom surface of the lifting ring 11. When it is necessary to discharge impurities, the electric push rods 10 retract to make the lifting ring 11 descend to fit the surface of the conical cover 12, so that the space on the side of the bottom of the vortex cylinder 3 can be isolated separately. During this process, the impurities deposited in the vortex cylinder 3 accumulate on the conical cover 12.

[0024] Both the water inlet pipe 1 and the bottom of the connecting box 6 are equipped with several support rods 2. The support rods 2 are used to insert into the coal mine water guiding channel. The downward-facing opening of the vortex cylinder 3 is fitted with the bottom of the water guiding channel with a gap. By inserting the support rods 2 into the water guiding channel, the device can be fixed in the water guiding channel.

[0025] The inlet of the cyclone tube 3 and the bottom edge of the conical shroud 12 both extend downwards, forming an annular groove 8 between their extensions. Several baffles 15 are fixedly installed within the annular groove 8, arranged in a circular array around the central axis of the conical shroud 12. A compartment 16 for storing impurities is formed between adjacent baffles 15 within the annular groove 8. An annular plate 9 covers the opening below the annular groove 8. Several electrically operated telescopic rods 14 are installed between the inner side of the annular plate 9 and the bottom surface of the conical shroud 12. The electrically operated telescopic rods 14 are parallel to the central axis of the conical shroud 12 and are designed to extend downwards. The cylinder body and telescopic end are connected to the bottom surface of the conical cover 12 and the inner side of the ring plate 9, respectively. Impurities slide down the surface of the conical cover 12 and fall into the annular groove 8, and then enter each compartment 16. The baffle 15 can prevent the water flow in the annular groove 8 from forming a vortex and prevent the falling impurities from being stirred. When discharging impurities, the ring plate 9 is lowered and separated from the bottom of the annular groove 8 by extending the electric telescopic rod 14. The impurities are discharged under the impact of the water flow in the water guide channel by the gap between the bottom of the vortex cylinder 3 and the water guide channel.

[0026] The method of using this utility model is as follows: The device is installed in the water guiding channel of the coal mine. Part of the water in the water guiding channel enters the vortex cylinder 3 through the inlet pipe 1. Inside the vortex cylinder 3, it flows downward in a spiral shape. Impurities are thrown to the cylinder wall by centrifugal force and deposited under the action of gravity. The water after removing impurities enters the outlet pipe 4 through the connecting pipe 5. The water flow in the outlet pipe 4 drives the turbine 13 in the connecting box 6 to rotate. The speed sensor 7 detects the speed of the turbine 13 in real time, thereby reflecting the flow velocity in the water pipe 4, and thus reflecting the flow velocity of the water flowing in the water guiding channel.

[0027] The wiring diagrams for the speed sensor 7, electric push rod 10, and electric telescopic rod 14 in this utility model are common knowledge in the field. Their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control method and wiring layout of the speed sensor 7, electric push rod 10, and electric telescopic rod 14 will not be explained in detail.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A rapid measurement device for coal mine water inflow, characterized in that: The system comprises, in sequence along the water flow direction, an inlet pipe (1), a vortex cylinder (3), a connecting pipe (5), and an outlet pipe (4). The inlet pipe (1) penetrates the top edge of the vortex cylinder (3) wall and is arranged tangentially to the side edge of the vortex cylinder (3). The vortex cylinder (3) has its opening facing downwards, and one end of the connecting pipe (5) penetrates the center of the bottom of the vortex cylinder (3) facing upwards. The other end of the connecting pipe (5) is inserted into the inlet of the outlet pipe (4). A connecting box (6) is integrally formed on the surface of the outlet pipe (4). A turbine (13) is rotatably connected inside the connecting box (6). A portion of the blades of the turbine (13) are located inside the water outlet pipe (4), and the top of the blade shaft of the turbine (13) passes through the top of the connecting box (6) and is connected to a speed sensor (7) fixedly installed on the connecting box (6). A coaxially distributed conical cover (12) is provided at the downward-facing opening of the vortex tube (3), and a lifting ring (11) for fitting the surface of the conical cover (12) is slidably installed on the inner wall of the opening of the vortex tube (3).

2. The rapid measurement device for coal mine water inflow according to claim 1, characterized in that: The upper surface of the lifting ring (11) is a conical surface with the tip of the conical surface pointing downwards. Several electric push rods (10) are provided between the bottom surface of the lifting ring (11) and the inner wall of the vortex cylinder (3).

3. The rapid measurement device for coal mine water inflow according to claim 2, characterized in that: The electric push rod (10) is set parallel to the central axis of the vortex tube (3), and the cylinder body and telescopic end of the electric push rod (10) are respectively connected to the inner wall of the vortex tube (3) and the bottom surface of the lifting ring (11).

4. The rapid measurement device for coal mine water inflow according to claim 1, characterized in that: The bottom of the water inlet pipe (1) and the connecting box (6) are provided with several support rods (2). The support rods (2) are used to be inserted into the coal mine water guiding channel. The downward-facing opening of the vortex cylinder (3) is fitted with the bottom of the water guiding channel with a gap.

5. The rapid measurement device for coal mine water inflow according to claim 1, characterized in that: The opening of the cyclone tube (3) and the bottom edge of the conical cover (12) both extend downwards, and an annular groove (8) is formed between the two extensions. Several partitions (15) arranged in annular array around the central axis of the conical cover (12) are fixedly installed in the annular groove (8). A compartment (16) for storing impurities is formed between two adjacent partitions (15) in the annular groove (8).

6. The rapid measurement device for coal mine water inflow according to claim 5, characterized in that: The groove below the annular groove (8) is covered by an annular plate (9), and a number of electric telescopic rods (14) are provided between the inner side of the annular plate (9) and the bottom surface of the conical cover (12).

7. The rapid measurement device for coal mine water inflow according to claim 6, characterized in that: The electric telescopic rod (14) is arranged parallel to the central axis of the conical cover (12), and the cylinder body and telescopic end of the electric telescopic rod (14) are respectively connected to the bottom surface of the conical cover (12) and the inner side of the ring plate (9).

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