Liquid drainage device and liquid drainage equipment with same

By designing a liquid discharge device including flexible and hard material pipe sections, and equipped with real-time detection devices and control valves, the water damage problems caused by strong aquifers in coal mining are solved, and the mining safety and versatility are significantly improved.

CN222835811UActive Publication Date: 2025-05-06CHINA ENERGY GRP NINGXIA COAL IND CO LTD +1
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Patent Information

Application Number
CN202421842028.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-31
Publication Date
2025-05-06
Estimated Expiration
2034-07-31

AI Technical Summary

Technical Problem

In the prior art, due to the existence of strong aquifers during coal mining, various forms of water hazard threats such as roof water, fault water, off-stratum water and poorly sealed drilling water, seriously affecting the mining safety of coal mines.

Method used

A liquid discharge device is designed, including a liquid discharge structure, a first detection device and a second detection device. The liquid discharge structure consists of a first pipe section made of a flexible material and a second pipe section made of a hard material. The first detection device is arranged on the second pipe section for detecting the flow rate of the liquid, the second detection device is used to detect the liquid pressure, and controls the flow rate and/or flow rate of the liquid according to the detection value through the control valve.

Benefits of technology

By spontaneously and real-time detection of liquid flow and pressure, the forgetting and inaccuracy of manual detection are avoided, and the safety of coal mining is significantly improved. The second pipe section of the hard material ensures the stability of liquid flow, while the first pipe section of the flexible material adapts to different working conditions, improving the versatility of the liquid discharge device.

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Abstract

The utility model provides a drainage device and drainage equipment with the drainage device, and the drainage device comprises a drainage structure which is provided with a liquid inlet, a drainage port and a communication cavity, the drainage port is communicated with the liquid inlet through the communication cavity, the liquid inlet is used for being communicated with a first drill hole, and the drainage port is used for being communicated with a second drill hole or a drainage pipeline; wherein at least one part of the liquid drainage structure comprises a first pipe section and a second pipe section, the first pipe section is made of a flexible material, and the second pipe section is made of a hard material; and the first detection device is arranged on the second pipe section so as to detect the liquid flow in the second pipe section. According to the utility model, the problem that the mining safety of a coal mine is lower in the prior art is effectively solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of coal mining equipment, in particular to a liquid discharge device and liquid discharge equipment having the same. Background Art

[0002] At present, in the actual mining process of coal mines, the sandstone aquifer of the lower section of the Zhiluo Formation above the coal roof and the sandstone aquifer of the Yan'an Formation between the two coal layers are usually strong aquifers. Among them, the average thickness of the aquifer of the lower section of the Zhiluo Formation is 138m, and the two aquifers are closely connected hydraulically. Since the aquifer of the lower section of the Zhiluo Formation directly recharges the aquifer of the Yan'an Formation, the coal mining process will be threatened by various forms of water hazards such as roof water, fault water, delamination water and poorly sealed borehole water, which seriously affects the mining safety of coal mines.

[0003] In the prior art, in order to ensure the personal safety of the staff, drainage boreholes are usually dug, and the flow of water in the drainage boreholes is monitored in real time by means of volumetric method, manual visual inspection, etc. For example, when the volumetric method is used, the staff must first dig a reservoir and introduce the water in the drainage borehole into the reservoir, and then record the volume of water in the reservoir for multiple times within a preset time to calculate the drainage flow of the drainage borehole. When the staff finds that the water flow in the drainage borehole is too large, they will evacuate some staff members and conduct emergency drainage.

[0004] However, the above monitoring methods mainly rely on manpower, and there are problems such as personnel forgetfulness and inaccurate monitoring, which seriously affect the mining safety of coal mines. Utility Model Content

[0005] The main purpose of the utility model is to provide a drainage device and drainage equipment with the same, so as to solve the problem of low mining safety in coal mines in the prior art.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a liquid discharge device is provided, comprising: a liquid discharge structure, having a liquid inlet, a liquid discharge port and a connecting cavity, the liquid discharge port is connected with the liquid inlet through the connecting cavity, the liquid inlet is used to communicate with the first borehole, and the liquid discharge port is used to communicate with the second borehole or the liquid discharge pipeline; wherein at least a part of the liquid discharge structure comprises a first pipe segment and a second pipe segment, the first pipe segment is made of a flexible material, and the second pipe segment is made of a hard material; a first detection device is arranged on the second pipe segment to detect the liquid flow in the second pipe segment.

[0007] Furthermore, the liquid discharge device also includes a second detection device, which is arranged on the second pipe section, and a detection end of the second detection device extends into the connecting cavity to detect the liquid pressure in the connecting cavity.

[0008] Furthermore, along the liquid flow direction in the drainage structure, the second detection device is located upstream of the first detection device, and the drainage device also includes: a control valve, which is arranged on the pipe section of the drainage structure between the first detection device and the second detection device, and the control valve is connected to the second detection device to control the flow rate and / or flow of the liquid in the connecting cavity according to the detection value of the second detection device.

[0009] Furthermore, the first pipe section includes a plurality of first pipes arranged at intervals, the liquid inlet end of one first pipe forms a liquid inlet, and the liquid outlet end of another first pipe forms a liquid outlet; the second pipe section includes a plurality of second pipes arranged at intervals, two adjacent first pipes are connected by at least one second pipe, and two adjacent second pipes are connected by at least one first pipe.

[0010] Further, the multiple first pipelines include a second sub-pipeline and a fourth sub-pipeline, the multiple second pipelines include a first sub-pipeline, a third sub-pipeline and a fifth sub-pipeline, the first sub-pipeline is connected to the third sub-pipeline through the second sub-pipeline, the third sub-pipeline is connected to the fifth sub-pipeline through the fourth sub-pipeline, an end of the first sub-pipeline away from the second sub-pipeline is a liquid inlet, and an end of the fifth sub-pipeline away from the fourth sub-pipeline is a liquid outlet; wherein the first detection device is arranged on the third sub-pipeline, and the second detection device is arranged on the first sub-pipeline or the third sub-pipeline.

[0011] Further, the second sub-pipeline includes a first sub-pipeline section, a second sub-pipeline section and a third sub-pipeline section which are interconnected, the end of the first sub-pipeline section away from the second sub-pipeline section is connected to the first sub-pipeline, the end of the third sub-pipeline section away from the second sub-pipeline section is connected to the third sub-pipeline, the first sub-pipeline section has a center position height H1, the third sub-pipeline section has a center position height H2, and the center position height H1 and the center position height H2 satisfy: 40cm≤H1-H2≤60cm; wherein, the first sub-pipeline section and the second sub-pipeline section are arranged at a first angle A1, and the second sub-pipeline section and the third sub-pipeline section are arranged at a second angle A2.

[0012] Further, the third sub-pipeline has an inner diameter R1, the third sub-pipeline includes a fourth sub-pipeline section and a fifth sub-pipeline section, one end of the fourth sub-pipeline section is connected to the liquid inlet of the first detection device, the other end of the fourth sub-pipeline section is connected to the second sub-pipeline, one end of the fifth sub-pipeline section is connected to the liquid outlet of the first detection device, the other end of the fifth sub-pipeline section is connected to the fourth sub-pipeline, and the fourth sub-pipeline section is connected to the fifth sub-pipeline section through the first detection device; wherein, the length L1 of the fourth sub-pipeline section and the inner diameter R1 satisfy: 5R1≤L1≤10R1, and the length L2 of the fifth sub-pipeline section and the inner diameter R1 satisfy: 3R1≤L2≤5R1.

[0013] Furthermore, the second sub-pipeline has an inner diameter R2, and the length L3 of the first sub-pipeline section and the inner diameter R2 satisfy: R2≤L3≤3R2; and / or, the inner diameters of at least two of the first sub-pipeline, the second sub-pipeline, the third sub-pipeline, the fourth sub-pipeline and the fifth sub-pipeline are the same.

[0014] Furthermore, the discharge device also includes: an alarm device, used to send an alarm signal, the alarm signal includes at least one of a light signal and a sound signal; a control module, connected to both the alarm device and the first detection device, the control module controls the alarm device to send an alarm signal according to the detection value of the first detection device.

[0015] According to another aspect of the utility model, a drainage device is provided, which includes at least two drainage devices, wherein the liquid inlet and the liquid discharge port of the drainage structure of at least one drainage device are respectively connected to the first borehole and the second borehole; the liquid inlet of the drainage structure of at least another drainage device is connected to the first borehole, and the liquid discharge port of the drainage structure of the drainage device is connected to the drainage pipeline; wherein the drainage device is the above-mentioned drainage device.

[0016] According to the technical solution of the utility model, the drainage structure of the drainage device has a liquid inlet, a liquid discharge port and a connecting cavity. The liquid discharge port is connected to the liquid inlet through the connecting cavity. The liquid inlet is used to communicate with the first borehole, and the liquid discharge port is used to communicate with the second borehole or the drainage pipeline. At least a part of the drainage structure includes a first pipe section and a second pipe section. The first pipe section is made of a flexible material, and the second pipe section is made of a hard material. The first detection device is arranged on the second pipe section to detect the liquid flow in the second pipe section. In this way, in the process of discharging the liquid in the borehole through the drainage device, the first detection device arranged on the second pipe section can spontaneously and accurately detect the liquid flow in the second pipe section in real time, avoiding the phenomenon of personnel forgetting and poor accuracy caused by the manual detection method in the prior art, greatly improving the personal safety of the staff, and thus solving the problem of low mining safety in coal mines in the prior art. At the same time, the second pipe section made of hard material ensures that the liquid in the second pipe section can flow stably, thereby improving the detection accuracy of the first detection device, and the first pipe section made of flexible material can be deformed so that the discharge device can adapt to different working conditions, thereby improving the versatility of the discharge device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0018] Figure 1 The figure shows the overall structure of an embodiment of a liquid discharge device according to the present utility model.

[0019] The above drawings include the following reference numerals:

[0020] 1. First drilling hole; 2. Drainage pipeline; 3. Second drilling hole;

[0021] 10. Liquid discharge structure; 11. Liquid inlet; 12. Liquid discharge outlet; 13. First sub-pipeline; 14. Second sub-pipeline; 141. First sub-pipeline section; 142. Second sub-pipeline section; 143. Third sub-pipeline section; 15. Third sub-pipeline; 151. Fourth sub-pipeline section; 152. Fifth sub-pipeline section; 16. Fourth sub-pipeline; 17. Fifth sub-pipeline; 20. First detection device; 30. Second detection device. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0024] In the present invention, unless otherwise specified, directional words such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0025] In order to solve the problem of low mining safety in coal mines in the prior art, the present application provides a drainage device and a drainage equipment having the same.

[0026] like Figure 1 As shown, the liquid discharge device includes a liquid discharge structure 10 and a first detection device 20. The liquid discharge structure 10 has a liquid inlet 11, a liquid discharge port 12 and a connecting cavity. The liquid discharge port 12 is connected to the liquid inlet 11 through the connecting cavity. The liquid inlet 11 is used to communicate with the first borehole 1, and the liquid discharge port 12 is used to communicate with the second borehole 3 or the liquid discharge pipeline 2. Among them, at least a part of the liquid discharge structure 10 includes a first pipe section and a second pipe section, the first pipe section is made of a flexible material, and the second pipe section is made of a hard material. The first detection device 20 is arranged on the second pipe section to detect the liquid flow in the second pipe section.

[0027] According to the technical solution of this embodiment, the drainage structure 10 of the drainage device has a liquid inlet 11, a liquid discharge port 12 and a connecting cavity. The liquid discharge port 12 is connected to the liquid inlet 11 through the connecting cavity. The liquid inlet 11 is used to communicate with the first borehole 1, and the liquid discharge port 12 is used to communicate with the second borehole 3 or the drainage pipeline 2. Among them, at least a part of the drainage structure 10 includes a first pipe section and a second pipe section. The first pipe section is made of a flexible material, and the second pipe section is made of a hard material. The first detection device 20 is arranged on the second pipe section to detect the liquid flow in the second pipe section. In this way, in the process of discharging the liquid in the borehole through the drainage device, the first detection device 20 arranged on the second pipe section can spontaneously and accurately detect the liquid flow in the second pipe section in real time, avoiding the phenomenon of personnel forgetting and poor accuracy caused by the manual detection method in the prior art, greatly improving the personal safety of the staff, and thus solving the problem of low mining safety in the coal mine in the prior art. At the same time, the second pipe section made of hard material ensures that the liquid in the second pipe section can flow stably, thereby improving the detection accuracy of the first detection device 20, and the first pipe section made of flexible material can be deformed so that the discharge device can adapt to different working conditions, thereby improving the versatility of the discharge device.

[0028] In this embodiment, the first detection device 20 is a pipeline flow meter.

[0029] In this embodiment, the first detection device 20 is connected to the second pipe section via a flange.

[0030] Specifically, the first detection device 20 has the same shape as the flange.

[0031] Specifically, in the actual coal mining process, the liquid flow in the borehole is large. Although the pipe section made of flexible material can bend and deform to adapt to different working conditions, it will inevitably vibrate to a large extent under the impact of the liquid. Conventional pipeline flow meters are prone to fluctuations in detection values ​​during actual detection. By providing a first pipe section made of flexible material and a second pipe section made of hard material, and setting the pipeline flow meter on the second pipe section, the detection accuracy of the pipeline flow meter can be improved while ensuring that the drainage device has high versatility.

[0032] like Figure 1As shown, the liquid discharge device also includes a second detection device 30, which is arranged on the second pipe section, and the detection end of the second detection device 30 extends into the connecting cavity to detect the liquid pressure in the connecting cavity. In this way, the staff can detect the liquid pressure in the second pipe section through the second detection device 30, and then correct the detection value of the first detection device 20 through the detection value of the second detection device 30. On the one hand, the staff can find out whether the first detection device 20 is damaged in time, which improves the timeliness of the staff's maintenance, and on the other hand, further improves the detection accuracy of the first detection device 20. At the same time, since the second detection device 30 is arranged on the second pipe section, the second detection device 30 also has a high detection accuracy.

[0033] In this embodiment, the second detection device 30 is a pressure sensor.

[0034] like Figure 1 As shown, along the liquid flow direction in the drainage structure 10, the second detection device 30 is located upstream of the first detection device 20, and the drainage device also includes a control valve. The control valve is arranged on the pipe section of the drainage structure 10 between the first detection device 20 and the second detection device 30, and the control valve is connected to the second detection device 30 to control the flow rate and / or flow rate of the liquid in the connecting cavity according to the detection value of the second detection device 30. In this way, when the detection value of the second detection device 30 is too large (the pressure of the liquid flowing out of the borehole is too large, and water inrush has occurred or will occur), the control valve can cut off the liquid flow path (that is, control the liquid flow rate to zero) to avoid the occurrence of water inrush, further improving the personal safety of the staff.

[0035] In this embodiment, the control valve is used to control the flow rate of the liquid in the communication chamber.

[0036] In this embodiment, the control valve is a simple on-off valve.

[0037] It should be noted that the control valve can also be an electrically controlled valve with more diverse functions, so that the control valve can gradually control the liquid flow rate according to the detection value of the second detection device 30 (that is, as the liquid pressure gradually increases, the liquid flow rate is controlled to gradually decrease until the liquid pressure reaches the preset value, the electrically controlled valve is completely closed, and the liquid flow rate is zero) to reduce the impact of liquid flow fluctuations.

[0038] In this embodiment, the switch valve has a nut, and the nut of the switch valve is welded to the second pipe section.

[0039] like Figure 1As shown, the second pipe section includes a plurality of second pipes arranged at intervals, the liquid inlet end of one second pipe forms a liquid inlet 11, and the liquid outlet end of another second pipe forms a liquid discharge port 12. The first pipe section includes a plurality of first pipes arranged at intervals, two adjacent first pipes are connected through at least one second pipe, and two adjacent second pipes are connected through at least one first pipe. In this way, the above arrangement, on the one hand, makes the formation of the liquid inlet 11 and the liquid discharge port 12 simpler, easier to process and realize; on the other hand, the first pipes made of flexible materials and the second pipes made of hard materials are arranged alternately, so as to further improve the versatility of the liquid discharge device.

[0040] In this embodiment, the liquid inlet end of the second pipeline is fixedly connected to the drilled hole through an elbow flange.

[0041] like Figure 1 As shown, the plurality of first pipelines include the second sub-pipeline 14 and the fourth sub-pipeline 16, and the plurality of second pipelines include the first sub-pipeline 13, the third sub-pipeline 15 and the fifth sub-pipeline 17. The first sub-pipeline 13 is connected to the third sub-pipeline 15 through the second sub-pipeline 14, and the third sub-pipeline 15 is connected to the fifth sub-pipeline 17 through the fourth sub-pipeline 16. The end of the first sub-pipeline 13 away from the second sub-pipeline 14 is the liquid inlet 11, and the end of the fifth sub-pipeline 17 away from the fourth sub-pipeline 16 is the liquid outlet 12. Among them, the first detection device 20 is arranged on the third sub-pipeline 15, and the second detection device 30 is arranged on the first sub-pipeline 13 or the third sub-pipeline 15. In this way, the above arrangement makes the structure of the first pipeline and the second pipeline simpler, easier to process and realize; on the other hand, it makes the setting position of the second detection device 30 more flexible and diverse to adapt to different working conditions and use requirements, and also improves the processing flexibility of the staff.

[0042] In this embodiment, the second detection device 30 is arranged on the third sub-pipeline 15. Thus, the above arrangement enables both the first detection device 20 and the second detection device 30 to detect the liquid in the third sub-pipeline 15, so as to reduce the detection error caused by different liquid detection positions.

[0043] like Figure 1As shown, the second sub-pipeline 14 includes a first sub-pipeline section 141, a second sub-pipeline section 142 and a third sub-pipeline section 143 which are interconnected. The end of the first sub-pipeline section 141 away from the second sub-pipeline section 142 is connected to the first sub-pipeline 13, and the end of the third sub-pipeline section 143 away from the second sub-pipeline section 142 is connected to the third sub-pipeline 15. The first sub-pipeline section 141 has a center position height H1, and the third sub-pipeline section 143 has a center position height H2. The center position height H1 and the center position height H2 satisfy: 40cm≤H1-H2≤60cm. The first sub-pipeline section 141 and the second sub-pipeline section 142 are arranged at a first angle A1, and the second sub-pipeline section 142 and the third sub-pipeline section 143 are arranged at a second angle A2. In this way, when the liquid in the first sub-pipeline 13 flows into the third sub-pipeline 15 through the second sub-pipeline 14, due to the height difference between the first sub-pipeline section 141 and the third sub-pipeline section 143, the liquid can flow to the third sub-pipeline 15 under the action of its own gravity, so as to ensure that the liquid in the third sub-pipeline 15 is in a full pipe state, thereby improving the detection accuracy of the first detection device 20. At the same time, the above-mentioned setting of the first angle A1 and the second angle A2 makes the structures of the first sub-pipeline section 141, the second sub-pipeline section 142 and the third sub-pipeline section 143 more flexible and diverse, so as to further adapt to different working conditions and usage requirements.

[0044] In this embodiment, the first sub-pipe section 141 and the second sub-pipe section 142 are arranged at 90°, and the second sub-pipe section 142 and the third sub-pipe section 143 are arranged at 90°.

[0045] like Figure 1 As shown, the third sub-pipeline 15 has an inner diameter R1, and the third sub-pipeline 15 includes a fourth sub-pipeline section 151 and a fifth sub-pipeline section 152. One end of the fourth sub-pipeline section 151 is connected to the liquid inlet of the first detection device 20, and the other end of the fourth sub-pipeline section 151 is connected to the second sub-pipeline 14. One end of the fifth sub-pipeline section 152 is connected to the liquid outlet of the first detection device 20, and the other end of the fifth sub-pipeline section 152 is connected to the fourth sub-pipeline 16. The fourth sub-pipeline section 151 is connected to the fifth sub-pipeline section 152 through the first detection device 20. Among them, the length L1 of the fourth sub-pipeline section 151 and the inner diameter R1 satisfy: 5R1≤L1≤10R1, and the length L2 of the fifth sub-pipeline section 152 and the inner diameter R1 satisfy: 3R1≤L2≤5R1. In this way, the ratio between the length L1 and the inner diameter R1 of the fourth sub-pipeline section 151 is set so that the liquid flowing out through the second sub-pipeline 14 can be buffered, thereby improving the stability of the liquid flowing to the first detection device 20, and further improving the detection accuracy of the first detection device 20. At the same time, the above setting can avoid turbulence during the flow of liquid, further improving the detection accuracy of the first detection device 20.

[0046] In this embodiment, the length L1 and the inner diameter R1 of the fourth sub-pipe section 151 satisfy: L1=10R1, so as to ensure that the proportional relationship between the length L1 and the inner diameter R1 of the fourth sub-pipe section 151 is more appropriate.

[0047] In this embodiment, the length L2 and the inner diameter R1 of the fifth sub-pipe section 152 satisfy: L2=5R1, so as to ensure that the relationship between the length L2 and the inner diameter R1 of the fifth sub-pipe section 152 is more appropriate.

[0048] In this embodiment, the inner diameter R1 of the fourth sub-pipe section 151 and the inner diameter R2 of the fifth sub-pipe section 152 are the same as the inner diameter of the first detection device 20. In this way, the fourth sub-pipe section 151 and the fifth sub-pipe section 152 do not need to be reduced or expanded when they are connected to the first detection device 20, which not only makes the inner walls of the fourth sub-pipe section 151 and the fifth sub-pipe section 152 smooth without surfacing, further improves the flow stability of the liquid, but also reduces the processing difficulty of the staff and improves the work efficiency of the staff.

[0049] like Figure 1 As shown, the second sub-pipeline 14 has an inner diameter R2, and the length L3 of the first sub-pipeline section 141 and the inner diameter R2 satisfy: R2≤L3≤3R2. And / or, the inner diameters of at least two of the first sub-pipeline 13, the second sub-pipeline 14, the third sub-pipeline 15, the fourth sub-pipeline 16 and the fifth sub-pipeline 17 are the same. In this way, the proportional relationship between the length L3 of the first sub-pipeline section 141 and the inner diameter R2 can ensure that the liquid flows out of the first sub-pipeline section 141 quickly, thereby improving the flow rate of the liquid. The inner diameter setting method of the first sub-pipeline 13, the second sub-pipeline 14, the third sub-pipeline 15, the fourth sub-pipeline 16 and the fifth sub-pipeline 17 makes it unnecessary to perform diameter reduction and expansion processing during the connection processing of the above-mentioned pipelines, thereby reducing the processing difficulty of the staff and improving the work efficiency of the staff.

[0050] In this embodiment, the length L3 of the first sub-pipe section 141 and the inner diameter R2 satisfy: L3 = R2, so as to ensure that the relationship between the length L3 of the first sub-pipe section 141 and the inner diameter R2 is more appropriate.

[0051] Optionally, the drainage device further includes an alarm device and a control module. The alarm device is used to send an alarm signal, and the alarm signal includes at least one of a light signal and a sound signal. The control module is connected to both the alarm device and the first detection device 20, and the control module controls the alarm device to send an alarm signal according to the detection value of the first detection device 20. In this way, when the detection value of the first detection device 20 exceeds the preset value set by the staff, the control module will control the alarm device to send a light signal or a sound signal to remind the staff to perform water drainage treatment, thereby improving the automation degree of the drainage device, reducing the labor intensity of the staff, and improving the personal safety of the staff.

[0052] like Figure 1 As shown, this embodiment also provides a drainage device, which includes at least two drainage devices, and the liquid inlet 11 and the liquid discharge port 12 of the drainage structure 10 of at least one drainage device are respectively connected to the first borehole 1 and the second borehole 3. The liquid inlet 11 of the drainage structure 10 of at least another drainage device is connected to the second borehole 3, and the liquid discharge port 12 of the drainage structure 10 of the drainage device is connected to the drainage pipeline 2. Among them, the drainage device is the above-mentioned drainage device. In this way, the above-mentioned setting of the drainage device can realize the linkage between multiple drainage devices, so as to detect the drainage flow of multiple boreholes at the same time.

[0053] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:

[0054] The discharge structure of the discharge device has a liquid inlet, a liquid discharge port and a connecting cavity, the liquid discharge port is connected with the liquid inlet through the connecting cavity, the liquid inlet is used to be connected with the first borehole, and the liquid discharge port is used to be connected with the second borehole or the liquid discharge pipeline. Among them, at least a part of the liquid discharge structure includes a first pipe section and a second pipe section, the first pipe section is made of a flexible material, the second pipe section is made of a hard material, and the first detection device is arranged on the second pipe section to detect the liquid flow in the second pipe section. In this way, in the process of discharging the liquid in the borehole through the liquid discharge device, the first detection device arranged on the second pipe section can spontaneously and accurately detect the liquid flow in the second pipe section in real time, avoiding the phenomenon of personnel forgetting and poor accuracy caused by the manual detection method in the prior art, greatly improving the personal safety of the staff, and thus solving the problem of low mining safety in coal mines in the prior art. At the same time, the second pipe section made of hard material ensures that the liquid in the second pipe section can flow stably, thereby improving the detection accuracy of the first detection device, and the first pipe section made of flexible material can be deformed so that the discharge device can adapt to different working conditions, thereby improving the versatility of the discharge device.

[0055] Obviously, the embodiments described above are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0056] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0057] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0058] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A liquid discharge device, characterized in that: include: A liquid discharge structure (10) comprising a liquid inlet (11), a liquid discharge port (12) and a communication cavity, wherein the liquid discharge port (12) is connected to the liquid inlet (11) through the communication cavity, the liquid inlet (11) is used to communicate with a first borehole (1), and the liquid discharge port (12) is used to communicate with a second borehole (3) or a liquid discharge pipeline (2); wherein at least a portion of the liquid discharge structure (10) comprises a first pipe section and a second pipe section, wherein the first pipe section is made of a flexible material, and the second pipe section is made of a hard material; A first detection device (20) is arranged on the second pipe section to detect the liquid flow in the second pipe section.

2. The liquid discharge device according to claim 1, characterized in that: The liquid discharge device further comprises a second detection device (30), wherein the second detection device (30) is arranged on the second pipe section, and a detection end of the second detection device (30) extends into the connecting cavity to detect the liquid pressure in the connecting cavity.

3. The liquid discharge device according to claim 2, characterized in that: Along the liquid flow direction in the liquid drainage structure (10), the second detection device (30) is located upstream of the first detection device (20), and the liquid drainage device further comprises: A control valve is arranged on a pipe section of the drainage structure (10) between the first detection device (20) and the second detection device (30), and the control valve is connected to the second detection device (30) to control the flow rate and / or flow rate of the liquid in the connecting cavity according to the detection value of the second detection device (30).

4. The liquid discharge device according to claim 3, characterized in that: The first pipe section comprises a plurality of first pipes arranged at intervals, the liquid inlet end of one of the first pipes forming the liquid inlet (11), and the liquid outlet end of another of the first pipes forming the liquid outlet (12); The second pipe section includes a plurality of second pipes arranged at intervals, two adjacent first pipes are connected via at least one second pipe, and two adjacent second pipes are connected via at least one first pipe.

5. The liquid discharge device according to claim 4, characterized in that: The plurality of first pipelines include a first sub-pipeline (13), a third sub-pipeline (15) and a fifth sub-pipeline (17); the plurality of second pipelines include a second sub-pipeline (14) and a fourth sub-pipeline (16); the first sub-pipeline (13) is connected to the third sub-pipeline (15) via the second sub-pipeline (14); the third sub-pipeline (15) is connected to the fifth sub-pipeline (17) via the fourth sub-pipeline (16); An end of the first sub-pipeline (13) away from the second sub-pipeline (14) is the liquid inlet (11), and an end of the fifth sub-pipeline (17) away from the fourth sub-pipeline (16) is the liquid outlet (12); The first detection device (20) is arranged on the third sub-pipeline (15), and the second detection device (30) is arranged on the first sub-pipeline (13) or the third sub-pipeline (15).

6. The liquid discharge device according to claim 5, characterized in that: The second sub-pipeline (14) comprises a first sub-pipeline section (141), a second sub-pipeline section (142) and a third sub-pipeline section (143) which are interconnected; an end of the first sub-pipeline section (141) away from the second sub-pipeline section (142) is connected to the first sub-pipeline (13); an end of the third sub-pipeline section (143) away from the second sub-pipeline section (142) is connected to the third sub-pipeline (15); the first sub-pipeline section (141) has a center position height H1; the third sub-pipeline section (143) has a center position height H2; the center position height H1 and the center position height H2 satisfy the following relationship: 40 cm ≤ H1-H2 ≤ 60 cm; The first sub-pipe section (141) and the second sub-pipe section (142) are arranged at a first angle A1, and the second sub-pipe section (142) and the third sub-pipe section (143) are arranged at a second angle A2.

7. The liquid discharge device according to claim 6, characterized in that: The third sub-pipeline (15) has an inner diameter R1, The third sub-pipeline (15) comprises a fourth sub-pipeline section (151) and a fifth sub-pipeline section (152); one end of the fourth sub-pipeline section (151) is connected to the liquid inlet of the first detection device (20); the other end of the fourth sub-pipeline section (151) is connected to the second sub-pipeline (14); one end of the fifth sub-pipeline section (152) is connected to the liquid outlet of the first detection device (20); the other end of the fifth sub-pipeline section (152) is connected to the fourth sub-pipeline (16); the fourth sub-pipeline section (151) is connected to the fifth sub-pipeline section (152) via the first detection device (20); The length L1 of the fourth sub-pipe section (151) and the inner diameter R1 satisfy the relationship: 5R1≤L1≤10R1, and the length L2 of the fifth sub-pipe section (152) and the inner diameter R1 satisfy the relationship: 3R1≤L2≤5R1.

8. The liquid discharge device according to claim 7, characterized in that: The second sub-pipeline (14) has an inner diameter R2, and the length L3 of the first sub-pipeline section (141) and the inner diameter R2 satisfy the following relationship: R2≤L3≤3R2; and / or, The inner diameters of at least two of the first sub-pipeline (13), the second sub-pipeline (14), the third sub-pipeline (15), the fourth sub-pipeline (16) and the fifth sub-pipeline (17) are consistent.

9. The liquid discharge device according to claim 1, characterized in that: The liquid discharge device also includes: An alarm device, used to send out an alarm signal, wherein the alarm signal includes at least one of a light signal and a sound signal; A control module is connected to both the alarm device and the first detection device (20), and the control module controls the alarm device to send out an alarm signal according to the detection value of the first detection device (20).

10. A liquid discharge device, characterized in that: The drainage device comprises at least two drainage devices, wherein the liquid inlet (11) and the liquid discharge port (12) of the drainage structure (10) of at least one drainage device are respectively connected to the first borehole (1) and the second borehole (3); the liquid inlet (11) of the drainage structure (10) of at least another drainage device is connected to the first borehole (1), and the liquid discharge port (12) of the drainage structure (10) of the drainage device is connected to the drainage pipeline (2); wherein the drainage device is the drainage device according to any one of claims 1 to 9.