Control system for corner-connected ventilation network

Abstract

The application provides a control system of an angle joint ventilation network. The control system comprises a gas-liquid resistance device and a controller. The gas-liquid resistance device is arranged in a corresponding roadway of the angle joint ventilation network. The gas-liquid resistance device comprises a plurality of gas-liquid outlets arranged at intervals. The gas-liquid outlets are used for spraying gas-liquid spray. The controller is electrically connected with the gas-liquid resistance device. The controller is used for controlling the spraying direction of the gas-liquid outlets and / or the gas-liquid pressure of the gas-liquid spray. The gas-liquid pressure comprises gas pressure and / or liquid pressure. The controller can control one of the spraying direction, the gas pressure and the liquid pressure of the gas-liquid spray sprayed by the gas-liquid resistance device to generate gas-liquid spray with a certain resistance, so as to change the air speed in the roadway. The air speed in the roadway can be intelligently and accurately controlled. The problem of large complexity and poor control effect of the angle joint ventilation network in the prior art is solved. The reliability and control effect of the control system of the angle joint ventilation network are high.

Description

Technical Field

[0001] This application relates to the field of mining, and more specifically, to a control system for a corner ventilation network. Background Technology

[0002] Currently, the control methods used in underground coal mines in China for the corner ventilation network are mainly accomplished through ventilation facilities such as air curtains, adjustable airtight seals, or air doors.

[0003] However, the current methods for controlling corner ventilation networks have the following problems: First, they are costly and labor-intensive. The cost of constructing a single ventilation tent is around 10,000 yuan, a single regulating damper around 20,000 yuan, and a single regulating airtight seal around 45,000 yuan. Furthermore, constructing a single ventilation tent requires 8 man-hours, a single regulating damper requires 18 man-hours, and a single regulating airtight seal requires 21 man-hours. Second, they cause difficulties for pedestrians and vehicles and are inefficient. Currently, controlling corner ventilation networks through ventilation tents, regulating airtight seals, or dampers significantly impacts pedestrian and vehicle traffic in the roadways. When ventilation tents are being constructed in the roadways, vehicles and materials cannot be transported... First, with ventilation doors in the tunnels in use, pedestrian and vehicle passage is extremely inconvenient, and the installation and removal of ventilation doors involve a huge amount of work. When the tunnels are under construction and sealed, neither pedestrians nor vehicles can pass, leading to low work efficiency. Second, the ventilation system is unreliable and poses safety hazards. If the facilities are damaged, the ventilation system immediately becomes disordered, resulting in significant safety risks. Third, the technology is outdated and cannot be integrated with intelligent ventilation systems. Currently used ventilation facilities such as ventilation tents, sealed systems, and ventilation doors cannot be remotely or intelligently controlled, let alone integrated with relevant intelligent systems. The interconnected ventilation network is the most complex ventilation network; if it cannot be intelligently controlled, intelligent mine construction is impossible.

[0004] Therefore, there is an urgent need for a new control method to control the underground corner ventilation network in order to solve the problems of high complexity and poor control effect of the existing mine corner ventilation network.

[0005] The information disclosed above in the background section is only intended to enhance the understanding of the background art of the art described herein. Therefore, the background art may contain certain information that does not constitute prior art known to those skilled in the art in this country. Summary of the Invention

[0006] The main objective of this application is to provide a control system for a corner ventilation network to solve the problems of high complexity and poor control effect of existing mine corner ventilation networks.

[0007] To achieve the above objectives, according to one aspect of this application, a control system for a corner ventilation network is provided. The control system includes a gas-liquid resistance device and a controller. The gas-liquid resistance device is located in the roadway corresponding to the corner ventilation network. The gas-liquid resistance device includes a plurality of spaced gas-liquid outlets for spraying gas-liquid mist. The controller is electrically connected to the gas-liquid resistance device and is used to control the spray direction of the gas-liquid outlets and / or the gas-liquid pressure of the gas-liquid mist, wherein the gas-liquid pressure includes air pressure and / or hydraulic pressure.

[0008] Optionally, the control system further includes a gas-liquid pipeline and an angle sensor, wherein one end of the gas-liquid pipeline is connected to each of the gas-liquid outlets, and the gas-liquid pipeline is used to transmit the gas-liquid spray to the gas-liquid outlet; the angle sensor is disposed on the gas-liquid outlet, and the angle sensor is used to obtain the actual spray direction of the gas-liquid outlet.

[0009] Optionally, the control system further includes a pressure gauge and multiple angle adjusters, wherein the pressure gauge is installed on the gas-liquid pipeline and is used to detect the gas-liquid pressure of the gas-liquid spray; the angle adjusters are connected one-to-one with the gas-liquid outlets, and the controller controls the spray direction of the gas-liquid outlets by controlling the angle adjusters.

[0010] Optionally, the control system further includes a liquid pipeline and a gas pipeline, wherein one end of the liquid pipeline is connected to the gas-liquid pipeline, and the other end of the liquid pipeline is used to connect to a liquid storage device, and the liquid pipeline is used to supply liquid to the gas-liquid pipeline; the gas pipeline is connected to the gas-liquid pipeline, and the gas pipeline is used to supply airflow to the gas-liquid pipeline, so that the liquid and airflow mix in the gas-liquid pipeline to form the gas-liquid spray.

[0011] Optionally, the control system further includes a hydraulic gauge, a pneumatic gauge, a first regulating valve, and a second regulating valve. The hydraulic gauge is installed on the liquid pipeline and is used to test the hydraulic pressure in the liquid pipeline. The pneumatic gauge is installed on the pneumatic pipeline and is used to test the pneumatic pressure in the pneumatic pipeline. The first regulating valve is installed on the liquid pipeline, and the controller regulates the hydraulic pressure in the liquid pipeline by controlling the first regulating valve. The second regulating valve is installed on the pneumatic gauge, and the controller regulates the pneumatic pressure in the pneumatic pipeline by controlling the second regulating valve.

[0012] Optionally, the control system further includes a wind speed sensor located in the roadway corresponding to the corner ventilation network, and the wind speed sensor is used to test the actual wind speed in the roadway.

[0013] Optionally, the controller controls the injection direction of the gas-liquid outlet and / or the gas-liquid pressure of the gas-liquid spray, including: the controller acquiring the actual wind speed in the tunnel emitted by the wind speed sensor; the controller calculating the absolute value of the difference between the target wind speed and the actual wind speed to obtain a predetermined difference; when the predetermined difference is within a first range, the controller controls the gas pressure and hydraulic pressure of the gas-liquid spray to be at the minimum within an acceptable range, and the controller changes the injection direction of the gas-liquid outlet so that the adjusted actual wind speed in the tunnel is equal to the target wind speed; when the predetermined difference is within a second range, the controller controls the hydraulic pressure of the gas-liquid spray to be the minimum within an acceptable range. The minimum value within the acceptable range, the angle between the jet direction of the gas-liquid outlet and the tunnel is the minimum value, and the controller changes the magnitude of the gas pressure so that the actual wind speed of the adjusted tunnel is equal to the target wind speed, the minimum value within the second range is greater than the maximum value within the first range; when the predetermined difference is within the third range, the controller controls the gas pressure of the gas-liquid spray to the maximum value within the acceptable range, the angle between the jet direction of the gas-liquid outlet and the tunnel is the minimum value, and the controller changes the magnitude of the hydraulic pressure so that the actual wind speed of the adjusted tunnel is equal to the target wind speed, the minimum value within the third range is greater than the maximum value within the second range.

[0014] Optionally, the controller controls the air pressure and hydraulic pressure of the gas-liquid spray to be at their minimum values ​​within an acceptable range, and the controller adjusts the spray direction of the gas-liquid outlet to make the actual wind speed in the adjusted tunnel equal to the target wind speed, including: the controller sending first control information to the first regulating valve and the second regulating valve to adjust the opening of the first regulating valve and the second regulating valve to their minimum values, so that the air pressure and hydraulic pressure are both at their minimum values; when the actual wind speed is less than the target wind speed, the controller controls the angle between the spray direction of the gas-liquid outlet and the tunnel to increase, so as to reduce the resistance of the wind speed, so that the actual wind speed in the adjusted tunnel equals the target wind speed; when the actual wind speed is greater than the target wind speed, the controller controls the angle between the spray direction of the gas-liquid outlet and the tunnel to decrease, so as to increase the resistance of the wind speed, so that the actual wind speed in the adjusted tunnel equals the target wind speed.

[0015] Optionally, the controller controls the hydraulic pressure of the gas-liquid spray to the minimum value within the acceptable range, the angle between the spray direction of the gas-liquid outlet and the tunnel to the minimum value, and the controller adjusts the gas pressure so that the actual wind speed in the adjusted tunnel equals the target wind speed, including: the controller sending second control information to the first regulating valve to adjust the opening of the first regulating valve to the minimum value, so that the hydraulic pressure is at its minimum, and the controller controls the angle between the spray direction of the gas-liquid outlet and the tunnel to the minimum value; in the actual When the wind speed is less than the target wind speed, the controller sends a third control message to the second regulating valve to reduce the opening of the second regulating valve, thereby reducing the air pressure and reducing the resistance to wind speed, so that the actual wind speed in the adjusted roadway is equal to the target wind speed; when the actual wind speed is greater than the target wind speed, the controller sends a fourth control message to the second regulating valve to increase the opening of the second regulating valve, thereby increasing the air pressure and increasing the resistance to wind speed, so that the actual wind speed in the adjusted roadway is equal to the target wind speed.

[0016] Optionally, the controller controls the gas pressure of the gas-liquid spray to the maximum value within the acceptable range, the angle between the spray direction of the gas-liquid outlet and the tunnel to the minimum value, and the controller adjusts the hydraulic pressure so that the actual wind speed of the adjusted tunnel is equal to the target wind speed, including: the controller sending a fifth control message to the second regulating valve to adjust the opening of the second regulating valve to the maximum value, so that the gas pressure is at the maximum value, and the controller controlling the angle between the spray direction of the gas-liquid outlet and the tunnel to the minimum value; when the actual wind speed is less than the target wind speed, the controller sending a sixth control message to the first regulating valve to adjust the opening of the first regulating valve to decrease, so that the hydraulic pressure decreases, thereby reducing the resistance to wind speed, so that the actual wind speed of the adjusted tunnel is equal to the target wind speed; when the actual wind speed is greater than the target wind speed, the controller sending a seventh control message to the first regulating valve to adjust the opening of the first regulating valve to increase, so that the hydraulic pressure increases, thereby increasing the resistance to wind speed, so that the actual wind speed of the adjusted tunnel is equal to the target wind speed.

[0017] Optionally, the control system further includes a temperature sensor and a pressure sensor, wherein the temperature sensor is located in the roadway corresponding to the corner ventilation network and is used to test the actual temperature in the roadway; the pressure sensor is located in the roadway corresponding to the corner ventilation network and is used to test the actual pressure in the roadway.

[0018] Optionally, the control system includes a plurality of spaced-apart gas-liquid resistance devices, with a plurality of gas-liquid outlets of the gas-liquid resistance devices located on two sides of the roadway and on a surface away from the ground.

[0019] Optionally, the injection directions of the plurality of gas-liquid outlets are all at the same angle to the tunnel.

[0020] Optionally, the gas-liquid outlet includes a nozzle.

[0021] According to the technical solution of this application, the control system of the corner ventilation network includes a gas-liquid resistance device and a controller. The gas-liquid resistance device is located in the roadway corresponding to the corner ventilation network. The gas-liquid resistance device includes multiple spaced gas-liquid outlets for spraying gas-liquid mist. The controller is electrically connected to the gas-liquid resistance device and is used to control the spray direction of the gas-liquid outlets and / or the gas-liquid pressure of the gas-liquid mist, wherein the gas-liquid pressure includes air pressure and / or hydraulic pressure. Compared to the complexity and poor control effect of existing mine corner ventilation networks, the control system of the corner ventilation network in this application, by setting the gas-liquid resistance device in the roadway of the corner ventilation network, allows the controller to generate a gas-liquid spray with a certain resistance by controlling one of the spray direction, air pressure, and hydraulic pressure of the gas-liquid spray emitted by the gas-liquid resistance device. This alters the wind speed in the roadway, enabling intelligent and precise control of the wind speed in the corresponding roadway of the corner ventilation network. This avoids the problems of large workload, poor reliability, and unintelligent adjustment that exist in existing technologies that require ventilation control through air curtains, regulating airtightness, or air doors. The system solves the problems of high complexity and poor control effect in existing mine corner ventilation networks, ensuring high reliability and good control effect of the control system for the corner ventilation network. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:

[0023] Figure 1 A schematic diagram of a control system for a corner ventilation network according to an embodiment of this application is shown;

[0024] Figure 2 A schematic diagram of a gas-liquid resistance device according to an embodiment of this application is shown;

[0025] Figure 3A schematic diagram of a multi-channel gas-liquid resistance device according to an embodiment of this application is shown;

[0026] Figure 4 A schematic diagram of the graded damping of a control system for a corner ventilation network according to an embodiment of this application is shown;

[0027] Figure 5 A schematic diagram of the main equipment layout of a roadway in an angle-connected ventilation network according to an embodiment of this application is shown;

[0028] Figure 6 A schematic diagram of a corner ventilation network according to an embodiment of this application is shown;

[0029] Figure 7 A schematic diagram of the database management program structure of the software portion according to an embodiment of this application is shown.

[0030] The above figures include the following reference numerals:

[0031] 10. Gas-liquid resistance device; 20. Controller; 30. Roadway; 40. Gas-liquid pipeline; 50. Pressure gauge; 60. Liquid pipeline; 70. Gas pipeline; 80. Hydraulic gauge; 90. Air pressure gauge; 100. First regulating valve; 101. Gas-liquid outlet; 110. Second regulating valve; 120. System power supply; 130. UPS power supply; 140. Monitoring substation; 150. Roadway coal face; 160. Gas-liquid resistance wall; 170. First-level angle resistance adjustment; 180. Second-level air pressure resistance adjustment; 190. Third-level hydraulic resistance adjustment; 200. Wind speed sensor; 201. Remote control computer; 202. Switch; 203. Local computer; 210. Angle sensor; 220. Angle adjuster; 230. Solenoid valve; 240. Pressure sensor. Detailed Implementation

[0032] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0033] 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.

[0034] It should be understood that when an element (such as a layer, film, region, or substrate) is described as being "on" another element, the element may be directly on the other element, or there may be an intermediate element present. Furthermore, in the specification and claims, when an element is described as being "connected" to another element, the element may be "directly connected" to the other element, or "connected" to the other element via a third element.

[0035] As described in the background section, existing mine corner ventilation networks suffer from high complexity and poor control performance. To address these issues, embodiments of this application provide a control system for a corner ventilation network.

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0037] According to embodiments of this application, a control system for a corner ventilation network is provided, such as... Figures 1 to 2 As shown, the control system includes a gas-liquid resistance device 10 and a controller 20. The gas-liquid resistance device 10 is located in the tunnel 30 corresponding to the corner ventilation network. The gas-liquid resistance device 10 includes a plurality of spaced gas-liquid outlets 101 for spraying gas-liquid mist. The controller 20 is electrically connected to the gas-liquid resistance device 10 and is used to control the spray direction of the gas-liquid outlets 101 and / or the gas-liquid pressure of the gas-liquid mist, wherein the gas-liquid pressure includes air pressure and / or hydraulic pressure.

[0038] The control system of the aforementioned corner ventilation network includes a gas-liquid resistance device and a controller. The gas-liquid resistance device is located in the roadway corresponding to the corner ventilation network. The gas-liquid resistance device includes multiple spaced gas-liquid outlets for spraying gas-liquid mist. The controller is electrically connected to the gas-liquid resistance device and is used to control the spray direction of the gas-liquid outlets and / or the gas-liquid pressure of the gas-liquid mist, wherein the gas-liquid pressure includes air pressure and / or hydraulic pressure. Compared to the complexity and poor control effect of existing mine corner ventilation networks, the control system of the aforementioned corner ventilation network in this application, by installing the aforementioned gas-liquid resistance device in the aforementioned roadway of the corner ventilation network, allows the controller to generate a gas-liquid spray with a certain resistance by controlling one of the following: the spray direction, the air pressure, and the hydraulic pressure of the gas-liquid spray emitted by the gas-liquid resistance device. This alters the wind speed in the roadway, enabling intelligent and precise control of the wind speed in the corresponding roadway of the corner ventilation network. This avoids the problems of high workload, poor reliability, and unintelligent adjustment that arise from the need for ventilation control through ventilation curtains, regulating airtightness, or air doors in existing technologies. The system solves the problems of high complexity and poor control effect in existing mine corner ventilation networks, ensuring high reliability and good control effect of the aforementioned corner ventilation network control system.

[0039] In one specific embodiment, the liquid in the above-mentioned gas-liquid resistance device includes water. Of course, other substances can also be added to the water according to actual needs. In addition, the resistance of the wind generated will also be different when the above-mentioned injection direction is different. The smaller the angle between the above-mentioned injection direction and the extension direction of the tunnel, the greater the resistance.

[0040] In addition, the location of the gas-liquid resistance device in the roadway can be flexibly selected, and the distance between the multiple gas-liquid outlets in a single gas-liquid resistance device can be a fixed distance or flexibly set, that is, the distance between different gas-liquid outlets can be different, and the main basis for setting is to achieve a better control effect.

[0041] In the specific implementation process, such as Figures 1 to 2As shown, the control system also includes a gas-liquid pipeline 40 and an angle sensor (not shown). One end of the gas-liquid pipeline 40 is connected to each of the gas-liquid outlets 101, and the gas-liquid pipeline 40 is used to transmit the gas-liquid spray to the gas-liquid outlet 101. The angle sensor is installed on the gas-liquid outlet 101 and is used to obtain the actual spray direction of the gas-liquid outlet 101. By transmitting the gas-liquid spray to the gas-liquid outlet through the gas-liquid pipeline, the gas-liquid outlet can spray the gas-liquid spray. This ensures that the controller can generate a certain resistance to the wind speed in the tunnel by controlling the spray direction of the liquid outlet and / or the gas-liquid pressure of the gas-liquid spray, thereby controlling the wind speed in the tunnel. By setting the angle sensor, the actual spray direction of the gas-liquid outlet can be obtained, ensuring that the controller can achieve precise control of the spray direction based on the actual spray direction of the gas-liquid outlet. This further ensures the high reliability and good control effect of the control system of the angle-connected ventilation network.

[0042] In the above implementation process, such as Figure 1 As shown, there are three lines connected to the gas-liquid resistance device 10. The middle line is the gas-liquid pipeline 40, and the line above the gas-liquid pipeline 40 is connected to the angle sensor.

[0043] To further ensure the high reliability and good control effect of the control system of the aforementioned corner ventilation network, such as... Figures 1 to 2 As shown, the control system also includes a pressure gauge 50 and multiple angle adjusters (not shown in the figure). The pressure gauge 50 is installed on the gas-liquid pipeline 40 and is used to detect the gas-liquid pressure of the gas-liquid spray. The angle adjusters are connected one-to-one with the gas-liquid outlets 101. The controller 20 controls the spray direction of the gas-liquid outlets 101 by controlling the angle adjusters. By setting the pressure gauge and the angle adjusters, the pressure in the gas-liquid pipeline can be monitored in real time by the pressure gauge, and the controller can accurately control the spray direction of the gas-liquid outlets by the angle adjusters. This allows for precise control of the wind speed in the tunnel, further ensuring the high reliability and good control effect of the control system of the angle-connected ventilation network.

[0044] The above implementation scheme, such as Figure 1 As shown, the line located below the aforementioned gas-liquid pipeline 40 is connected to the aforementioned angle adjuster.

[0045] To further ensure the high reliability and good control effect of the control system of the aforementioned corner ventilation network, such as... Figures 1 to 2As shown, the control system also includes a liquid line 60 and a gas line 70. One end of the liquid line 60 is connected to the gas-liquid line 40, and the other end is used to connect to a liquid storage device (not shown in the figure). The liquid line 60 is used to supply liquid to the gas-liquid line 40. The gas line 70 is connected to the gas-liquid line 40 and is used to supply airflow to the gas-liquid line 40, so that the liquid and airflow mix in the gas-liquid line 40 to form the gas-liquid spray. Because the control system includes independent liquid and gas lines, the gas and liquid in the gas-liquid line can be controlled individually or as a whole, thereby achieving individual control of the gas and liquid in the gas-liquid line. This allows for more precise control of the gas pressure or hydraulic pressure in the gas-liquid spray, further ensuring the high reliability and good control effect of the control system of the angled ventilation network.

[0046] In the above implementation process, since the gas-liquid pipelines are respectively connected to the liquid pipelines and the gas pipelines, that is, the gas-liquid pipelines are set independently, the gas pressure of the gas pipelines and the hydraulic pressure of the liquid pipelines can be adjusted separately.

[0047] In some embodiments, such as Figures 1 to 2 As shown, the control system further includes a hydraulic gauge 80, a pneumatic gauge 90, a first regulating valve 100, and a second regulating valve 110. The hydraulic gauge 80 is installed on the liquid line 60 and is used to test the hydraulic pressure in the liquid line 60. The pneumatic gauge 90 is installed on the pneumatic line 70 and is used to test the pneumatic pressure in the pneumatic line 70. The first regulating valve 100 is installed on the liquid line 60, and the controller 20 regulates the hydraulic pressure in the liquid line 60 by controlling the first regulating valve 100. The second regulating valve 110 is installed on the pneumatic gauge 90, and the controller 20 regulates the pneumatic pressure in the pneumatic line 70 by controlling the second regulating valve 110. By installing a hydraulic gauge on the hydraulic pipe, a pressure gauge on the air pipe, a first regulating valve on the liquid pipe, and a second regulating valve on the pressure gauge, the controller can precisely control the hydraulic pressure in the gas-liquid spray through the hydraulic gauge and the first regulating valve, and precisely control the air pressure in the gas-liquid spray through the pressure gauge and the second regulating valve. This ensures precise and independent control of the air pressure and hydraulic pressure in the gas-liquid spray, generating a certain resistance, thereby precisely controlling the wind speed in the roadway. This further ensures the high reliability and good control effect of the control system of the angle ventilation network.

[0048] In its implementation, the control system further includes a wind speed sensor (not shown in the figure). This wind speed sensor is located within the roadway corresponding to the angled ventilation network and is used to test the actual wind speed within the roadway. By installing the wind speed sensor within the roadway, the actual wind speed can be monitored in real time. The controller can then precisely adjust the resistance generated by the gas-liquid resistance device based on the actual wind speed within the roadway, thereby achieving intelligent control of the angled ventilation network.

[0049] To further ensure the high reliability and good control effect of the control system of the aforementioned corner ventilation network, the controller controls the injection direction of the gas-liquid outlet and / or the gas-liquid pressure of the gas-liquid spray, including: the controller acquiring the actual wind speed in the roadway from the wind speed sensor; the controller calculating the absolute value of the difference between the target wind speed and the actual wind speed to obtain a predetermined difference; when the predetermined difference is within a first range, the controller controls the gas pressure and hydraulic pressure of the gas-liquid spray to be at the minimum within an acceptable range, and the controller changes the injection direction of the gas-liquid outlet so that the adjusted actual wind speed in the roadway equals the target wind speed; when the predetermined difference is within a second range, the controller controls... The hydraulic pressure for the aforementioned gas-liquid spray is at its minimum within the acceptable range, the angle between the spray direction of the gas-liquid outlet and the roadway is at its minimum, and the controller adjusts the gas pressure so that the actual wind speed in the adjusted roadway is equal to the target wind speed, with the minimum value in the second range being greater than the maximum value in the first range; when the predetermined difference is within the third range, the controller controls the gas pressure for the aforementioned gas-liquid spray to be at its maximum within the acceptable range, the angle between the spray direction of the gas-liquid outlet and the roadway is at its minimum, and the controller adjusts the hydraulic pressure so that the actual wind speed in the adjusted roadway is equal to the target wind speed, with the minimum value in the third range being greater than the maximum value in the second range. The controller obtains the actual wind speed and calculates the absolute value of the difference between the actual wind speed and the target wind speed to get the predetermined difference. Based on the different ranges of the predetermined difference, it selects the corresponding control method. Specifically, when the predetermined difference is small (i.e., the wind speed adjustment is small), the controller minimizes the pressure corresponding to the air and hydraulic pressures and generates wind speed resistance equal to the predetermined difference by changing the injection direction of the air-liquid outlet, making the actual wind speed equal to the target wind speed. When the predetermined difference is large, the controller minimizes the pressure corresponding to the hydraulic pressure and minimizes the angle between the injection direction and the tunnel. The air jet is directed as parallel as possible to the direction of the roadway extension, and the air pressure is controlled to generate a certain wind speed resistance, so that the actual wind speed equals the target wind speed. In addition, when the predetermined difference is larger, the air pressure is controlled to be at its maximum, the jet direction is made as parallel as possible to the direction of the roadway extension, and the hydraulic pressure is controlled to make the actual wind speed equal to the target wind speed. That is, by determining different ranges of the predetermined difference and selecting the corresponding wind speed control method, and by changing only one of the air pressure, the hydraulic pressure, and the jet direction, the wind speed can be precisely controlled, further ensuring the high reliability and good control effect of the control system of the corner ventilation network.

[0050] In one specific embodiment, such as Figure 4 As shown, each branch roadway of the angle-connected ventilation network is equipped with sensors such as wind speed sensor 200, temperature sensor (not shown in the figure), and pressure sensor 240 to monitor the ventilation parameters of the angle-connected ventilation network and provide necessary basic data for the calculation of the angle-connected ventilation network. In order to enable the angle-connected ventilation network system to reach the optimal state of the ventilation system through "fine-tuning", the control process of the above-mentioned control system of this application is mainly divided into three levels: first-level angle resistance adjustment 170°, second-level air pressure resistance adjustment 180°, and third-level hydraulic resistance adjustment 190°. The specific explanation is as follows: when the above-mentioned expected difference is within the first range, that is, when the angle-connected ventilation network is adjusted relatively well... During the hour, the specific control process of the above-mentioned control system is called the first-level angle resistance adjustment 170, that is, when the air pressure and hydraulic pressure are at their lowest, the controller CPU obtains the actual angle of the angle sensor 210, and then adjusts the inclination angle of the gas-liquid outlet 101 of the roadway through the electronic angle adjuster 220 and the solenoid valve 230, that is, adjusts the angle between the injection direction and the roadway extension direction to adjust the ventilation resistance of this roadway, so as to realize the angle-connected ventilation network adjustment, making the actual wind speed equal to the target wind speed; when the expected difference is within the larger second range, that is, when the angle-connected ventilation network adjustment is larger, the specific control process of the above-mentioned control system is as follows. The process is called secondary air pressure regulation 180, which means that the controller controls the hydraulic pressure of the gas-liquid spray to the minimum value within the acceptable range, and the angle between the spray direction of the gas-liquid outlet and the roadway is at the minimum value. The controller, i.e., the central CPU, obtains the actual air pressure through the air pressure gauge 90, and then adjusts the air pressure in the air pipeline 70 through the solenoid valve 230, i.e., adjusts the air pressure through the second regulating valve 110, thereby adjusting the ventilation resistance of this roadway, realizing the adjustment of the angle-connected ventilation network, so that the actual wind speed is equal to the target wind speed; when the predetermined difference is within a larger third range, i.e., the angle-connected ventilation network adjustment is large. At that time, the specific control process of the above-mentioned control system is called three-level hydraulic resistance adjustment 190, that is, the controller controls the gas pressure of the gas-liquid spray to the maximum value within the acceptable range, and the angle between the spray direction of the gas-liquid outlet and the roadway is the minimum value. The controller, i.e., the central CPU, obtains the actual hydraulic pressure through the hydraulic gauge 80, and then adjusts the hydraulic pressure in the liquid pipeline 60 through the first regulating valve 100 and the solenoid valve 230 of the air supply system. The regulator adjusts the hydraulic pressure to adjust the ventilation resistance of this roadway, realizes the adjustment of the angle-connected ventilation network, and makes the actual wind speed of the adjusted roadway equal to the target wind speed, specifically as follows. Figure 4As shown. The technical control system extends from a downhole ring network (first-level angle adjustment 170°, second-level air pressure adjustment 180°, third-level hydraulic adjustment 190°, wind speed sensor 200, and pressure sensor 240) to a wide area network (Internet). Specifically, the controller 20 is mainly implemented by a remote control computer 201, a switch 202, and a local computer 203. The specific connection method is as follows... Figure 4 As shown, it also reserves upgrade and expansion interfaces, allowing for smooth upgrades based on the original system, and can seamlessly connect with multiple systems to support intelligent mine construction.

[0051] Furthermore, the control system of the aforementioned corner ventilation network of this application has the following advantages: First, the construction of ventilation facilities reduces labor intensity, improves work efficiency, and has lower economic costs. This is mainly reflected in the fact that the control system uses a gas-liquid spray device to replace the original ventilation facilities such as air curtains, regulating seals, or air doors. The original ventilation facilities required more than 5 people to operate, while the ventilation facilities of this application can now be completed by only 1 person. The installation workload that originally required 1-3 shifts can now be completed in only 1 hour. Second, the ventilation facilities are more reliable and conducive to occupational health. This is mainly reflected in the fact that the original ventilation facilities such as air curtains, regulating seals, or air doors installed in the corner ventilation network not only affect pedestrians and vehicles, but also have unreliable ventilation systems. Once the facilities are damaged, the ventilation system will immediately become disordered. However, the aforementioned gas-liquid resistance device of this application is arranged on the top and side walls of the roadway, with a width of only about 5 centimeters. It not only does not affect pedestrians and vehicles, thereby improving work efficiency, but also eliminates the risk of being hit by vehicles or other external objects. This technology ensures more reliable ventilation facilities. Furthermore, the dust suppression spraying in the roadways is beneficial to the occupational health of employees. This system is suitable for corner roadways in coal mines, especially for modern mines with frequent pedestrian and vehicle traffic. Third, the corner ventilation system offers more scientific adjustments and more ideal system control. This is mainly reflected in the fact that the unobstructed intelligent control system operates at three levels: first-level angle adjustment, second-level air pressure adjustment, and third-level hydraulic adjustment. The corner ventilation network system can achieve "fine-tuning," allowing for intelligent "one-click air adjustment" at any time to achieve the optimal ventilation system state. Fourth, the intelligent control of the corner ventilation network, with 24-hour online monitoring, is an essential step in the construction of intelligent ventilation and intelligent mines. This is mainly reflected in the fact that the technology device achieves local intelligent control of the mine ventilation system. The ventilation system adjusts the roadway airflow intelligently based on network calculation results. Simultaneously, the control system reserves upgrade and expansion interfaces, allowing for smooth upgrades based on the original system and seamless integration with multiple systems, supporting the construction of intelligent mines.

[0052] In specific implementation, the controller controls the air pressure and hydraulic pressure of the gas-liquid spray to be at the minimum within an acceptable range. The controller also changes the spray direction of the gas-liquid outlet to make the actual wind speed in the adjusted tunnel equal to the target wind speed. This includes: the controller sending first control information to the first regulating valve and the second regulating valve to adjust their openings to the minimum, making both the air pressure and hydraulic pressure minimum; when the actual wind speed is less than the target wind speed, the controller increases the angle between the spray direction of the gas-liquid outlet and the tunnel to reduce wind resistance, making the actual wind speed in the adjusted tunnel equal to the target wind speed; when the actual wind speed is greater than the target wind speed, the controller decreases the angle between the spray direction of the gas-liquid outlet and the tunnel to increase wind resistance, making the actual wind speed in the adjusted tunnel equal to the target wind speed. By first adjusting the openings of the first and second regulating valves to their minimum, the air pressure and hydraulic pressure are minimized. Then, by determining whether the actual wind speed is greater than or less than the target wind speed, and when the actual wind speed is less than the target wind speed, the controller increases the angle between the injection direction and the tunnel extension direction to reduce wind resistance and increase the actual wind speed. Conversely, when the actual wind speed is greater than the target wind speed, the controller decreases the angle between the injection direction and the tunnel extension direction to increase wind resistance and decrease the actual wind speed. This ensures that the wind speed within the tunnel can be precisely adjusted by simply adjusting the injection direction, making the actual wind speed equal to the target wind speed. This further ensures the high reliability and good control effect of the control system of the angled ventilation network, while also ensuring that the control process of the angled ventilation network is relatively simple.

[0053] In some embodiments, the controller controls the hydraulic pressure of the gas-liquid spray to the minimum within the acceptable range, the angle between the spray direction of the gas-liquid outlet and the tunnel to the minimum, and the controller adjusts the gas pressure so that the actual wind speed in the adjusted tunnel equals the target wind speed. This includes: the controller sending second control information to the first regulating valve to adjust the opening of the first regulating valve to the minimum, so that the hydraulic pressure is at its minimum, and the controller controlling the angle between the spray direction of the gas-liquid outlet and the tunnel to the minimum. If the actual wind speed is less than the target wind speed, the controller sends a third control message to the second regulating valve to reduce the opening of the second regulating valve, thereby reducing the air pressure and reducing the resistance to wind speed, so that the actual wind speed in the adjusted roadway is equal to the target wind speed; if the actual wind speed is greater than the target wind speed, the controller sends a fourth control message to the second regulating valve to increase the opening of the second regulating valve, thereby increasing the air pressure and increasing the resistance to wind speed, so that the actual wind speed in the adjusted roadway is equal to the target wind speed. By first adjusting the opening of the first regulating valve to the minimum, thus minimizing the hydraulic pressure, and directly controlling the angle between the jet direction of the gas-liquid outlet and the direction of roadway extension to the minimum, and then determining whether the actual wind speed is greater than or less than the target wind speed, and when the actual wind speed is less than the target wind speed, the controller controls the opening of the second regulating valve to decrease, thereby reducing the air pressure and reducing the resistance to wind speed, thus increasing the actual wind speed. Conversely, when the actual wind speed is greater than the target wind speed, the controller controls the opening of the second regulating valve to increase, thereby increasing the air pressure and increasing the resistance to wind speed, thus decreasing the actual wind speed. This ensures that the wind speed in the roadway can be precisely adjusted by simply adjusting the second regulating valve to adjust the air pressure, so that the actual wind speed equals the target wind speed. This further ensures the high reliability and good control effect of the control system of the corner ventilation network, while also ensuring that the control process of the corner ventilation network is relatively simple.

[0054] In specific implementation, the controller controls the air pressure of the gas-liquid spray to the maximum value within the acceptable range, the angle between the spray direction of the gas-liquid outlet and the tunnel to the minimum value, and the controller adjusts the hydraulic pressure so that the actual wind speed in the adjusted tunnel equals the target wind speed. This includes: the controller sending fifth control information to the second regulating valve to adjust the opening of the second regulating valve to the maximum value, so that the air pressure is at its maximum value, and the controller controlling the angle between the spray direction of the gas-liquid outlet and the tunnel to the minimum value; in the above If the actual wind speed is less than the target wind speed, the controller sends a sixth control message to the first regulating valve to reduce the opening of the first regulating valve, thereby reducing the hydraulic pressure and reducing the resistance to wind speed, so that the actual wind speed in the adjusted roadway is equal to the target wind speed; if the actual wind speed is greater than the target wind speed, the controller sends a seventh control message to the first regulating valve to increase the opening of the first regulating valve, thereby increasing the hydraulic pressure and increasing the resistance to wind speed, so that the actual wind speed in the adjusted roadway is equal to the target wind speed. By first adjusting the opening of the second regulating valve to its maximum to maximize the air pressure and directly controlling the angle between the jet direction of the gas-liquid outlet and the direction of roadway extension to be minimized, and then determining whether the actual wind speed is greater than or less than the target wind speed, and when the actual wind speed is less than the target wind speed, the controller controls the opening of the first regulating valve to decrease, thereby reducing the hydraulic pressure and reducing the resistance to wind speed, thus increasing the actual wind speed. When the actual wind speed is greater than the target wind speed, the controller controls the opening of the first regulating valve to increase, thereby increasing the hydraulic pressure and increasing the resistance to wind speed, thus decreasing the actual wind speed. This ensures that the wind speed in the roadway can be accurately adjusted by only adjusting the first regulating valve to adjust the hydraulic pressure, so that the actual wind speed is equal to the target wind speed. This further ensures the high reliability and good control effect of the control system of the corner ventilation network, and also ensures that the control process of the corner ventilation network is relatively simple.

[0055] In some embodiments, the control system further includes a temperature sensor (not shown) and a pressure sensor (not shown). The temperature sensor is located within the roadway corresponding to the corner ventilation network and is used to test the actual temperature within the roadway. The pressure sensor is located within the roadway corresponding to the corner ventilation network and is used to test the actual pressure within the roadway. By setting up the temperature sensor and the pressure sensor, the actual temperature and pressure within the roadway can be acquired in real time, enabling the control system of the corner ventilation network to monitor the actual conditions of the roadway in real time.

[0056] In the specific implementation process, such as Figure 2 as well as Figure 3 As shown, the control system includes multiple spaced-apart gas-liquid resistance devices 10, with multiple gas-liquid outlets 101 of the gas-liquid resistance devices 10 located on both sides of the roadway 30 and on a surface away from the ground. Depending on the actual conditions of the roadway ventilation volume and roadway resistance, one, two, or more gas-liquid resistance devices can be installed in each roadway to ensure a more accurate and simpler control process for the angled ventilation network.

[0057] In the above implementation process, such as Figure 2 As shown, the gas-liquid resistance device 10's gas-liquid outlet 101 is only installed on the top and two sides of the coal seam 150 of the roadway 30, and not at the bottom of the roadway, because if it were installed at the bottom of the roadway, it would affect pedestrians or vehicles, causing inconvenience.

[0058] In addition, such as Figure 3 As shown, the gas-liquid spray emitted by the gas-liquid resistance device 10 forms a gas-liquid resistance wall 160 to generate a certain resistance.

[0059] In some embodiments, the injection directions of the plurality of gas-liquid outlets are all at the same angle to the tunnel. Because the injection directions of the plurality of gas-liquid outlets are all at the same angle to the tunnel, the wind speed regulation capability of the plurality of gas-liquid outlets is better. At the same time, the controller can more easily control the injection direction, further ensuring the high reliability and good control effect of the control system of the angle-connected ventilation network.

[0060] Of course, the injection directions of the multiple gas-liquid outlets can be different. However, if the injection directions of the multiple gas-liquid outlets are different, the difficulty of the controller in controlling the injection direction will increase. The specific direction can be determined according to the actual situation.

[0061] In practice, the aforementioned gas-liquid outlet includes a nozzle. The nozzle primarily includes a multi-purpose nozzle.

[0062] Of course, the above-mentioned gas-liquid outlet can also be selected from other devices besides the nozzle, as long as it can spray gas-liquid mist.

[0063] In one specific embodiment, the most common corner network in mines is as follows: Figure 5As shown, multiple monitoring data within the tunnel are transmitted to the monitoring substation 140, which is primarily powered by the system power supply 120 and the UPS power supply 130. The monitoring substation 140 transmits these monitoring data to the controller 20, enabling the controller 20 to control the wind speed within the tunnel based on the monitoring data. The controller 20 includes a CPU and is typically located on the ground. Figure 6 for Figure 5 The ventilation network diagram corresponding to the shown corner network shows the following specific details:

[0064] According to the characteristics of the angle-connected ventilation network, the air volume of each branch has the following relationship: Qin + Qair = Qreturn.

[0065] According to the law of air volume balance, we have: Qin = Q1 + Q2, Qreturn = Q4 + Qair + Q5.

[0066] According to the law of air volume balance, we have: Q3 = Q4 + Q_wind - Q1, Q4 = Q1 + Q3 - Q_wind

[0067] Let the wind pressure of each air path be P. Then, according to the wind pressure balance law, we have: hin - hair = hreturn.

[0068] Where Q represents wind speed and h represents resistance, in actual underground coal mine operations, the airflow in the ventilation network is in a completely turbulent state, which conforms to the resistance law: h = RtotalQ 2 ,

[0069] From the above formula, it can be seen that, As can be seen from the formula, the size of Q4 can be controlled by R wind. The external factor that can directly control the resistance of the branch roadway 4 is the "convex" type air-water resistance wall, that is, the air-liquid resistance device mentioned above in this application. The "convex" type air-water resistance wall, that is, the air-liquid resistance device mentioned above, is equipped with probes for actual wind speed, pressure, etc. with fixed and quantitative parameters, and the monitoring data is uploaded to the matching intelligent control system, that is, the controller mentioned above. The controller classifies, analyzes, simulates and other processes the uploaded data, and realizes "one-click control" of the air volume of each roadway in the corner by intelligently adjusting the resistance of the "convex" type air-water resistance wall roadway according to actual needs.

[0070] In addition, the adapter control software includes a microcontroller test program, a PC communication program, a PC database management program, and a PC runtime program, all written in Visual C++. This control software possesses multiple features, including data management, statistical analysis, matrix calculation, programming language capabilities, ventilation network calculation, graphical drawing, status graphical simulation, intelligent airflow adjustment, and timely alarms. The control software features a three-tiered menu interface; its database management program structure diagram is detailed in the appendix. Figure 7The process consists of start, initialization, main menu, and exit / end. The main menu primarily includes various ventilation data for each tunnel, namely tunnel resistance (Pa) and tunnel air resistance (N*s). 2 / m 8 Actual air volume (m³) 3 / s), input air volume (m³) 3 / s), spray angle or universal nozzle angle (°), air pressure (Pa), and hydraulic pressure (Pa).

[0071] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0072] As can be seen from the above description, the embodiments of this application achieve the following technical effects:

[0073] The control system of the aforementioned corner ventilation network of this application includes a gas-liquid resistance device and a controller. The gas-liquid resistance device is located in the roadway corresponding to the corner ventilation network. The gas-liquid resistance device includes a plurality of spaced gas-liquid outlets for spraying gas-liquid mist. The controller is electrically connected to the gas-liquid resistance device and is used to control the spray direction of the gas-liquid outlets and / or the gas-liquid pressure of the gas-liquid mist, wherein the gas-liquid pressure includes air pressure and / or hydraulic pressure. Compared to the complexity and poor control effect of existing mine corner ventilation networks, the control system of the aforementioned corner ventilation network in this application, by installing the aforementioned gas-liquid resistance device in the aforementioned roadway of the corner ventilation network, allows the controller to generate a gas-liquid spray with a certain resistance by controlling one of the following: the spray direction, the air pressure, and the hydraulic pressure of the gas-liquid spray emitted by the gas-liquid resistance device. This alters the wind speed in the roadway, enabling intelligent and precise control of the wind speed in the corresponding roadway of the corner ventilation network. This avoids the problems of high workload, poor reliability, and unintelligent adjustment that arise from the need for ventilation control through ventilation curtains, regulating airtightness, or air doors in existing technologies. The system solves the problems of high complexity and poor control effect in existing mine corner ventilation networks, ensuring high reliability and good control effect of the aforementioned corner ventilation network control system.

[0074] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A control system for a corner ventilation network, characterized in that, The control system includes: A gas-liquid resistance device is located in the roadway corresponding to the corner ventilation network. The gas-liquid resistance device includes multiple spaced gas-liquid outlets, which are used to spray gas-liquid mist. A controller, electrically connected to the gas-liquid resistance device, is used to control the jet direction of the gas-liquid outlet and / or the gas-liquid pressure of the gas-liquid spray, wherein the gas-liquid pressure includes air pressure and / or hydraulic pressure. The control system further includes: a gas-liquid pipeline, one end of which is connected to each of the gas-liquid outlets, the gas-liquid pipeline being used to transmit the gas-liquid spray to the gas-liquid outlets; an angle sensor, the angle sensor being disposed on the gas-liquid outlets, the angle sensor being used to obtain the actual spray direction of the gas-liquid outlets; a liquid pipeline, one end of which is connected to the gas-liquid pipeline, the other end of which is used to connect to a liquid storage device, the liquid pipeline being used to supply liquid to the gas-liquid pipeline; and a gas pipeline, the gas pipeline being connected to the gas-liquid pipeline, the gas pipeline being used to supply airflow to the gas-liquid pipeline, so that the liquid and airflow mix in the gas-liquid pipeline. The system comprises: a gas-liquid spray system; a hydraulic gauge installed on the liquid pipeline for testing the hydraulic pressure in the liquid pipeline; a gas pressure gauge installed on the gas pipeline for testing the gas pressure in the gas pipeline; a first regulating valve installed on the liquid pipeline, which the controller controls to regulate the hydraulic pressure in the liquid pipeline; a second regulating valve installed on the gas pressure gauge, which the controller controls to regulate the gas pressure in the gas pipeline; and a wind speed sensor located in the roadway corresponding to the corner ventilation network for testing the actual wind speed in the roadway. The controller controls the injection direction of the gas-liquid outlet and / or the gas-liquid pressure of the gas-liquid spray, including: the controller acquiring the actual wind speed in the tunnel as emitted by the wind speed sensor; the controller calculating the absolute value of the difference between the target wind speed and the actual wind speed to obtain a predetermined difference; when the predetermined difference is within a first range, the controller controls the gas pressure and hydraulic pressure of the gas-liquid spray to be at the minimum within an acceptable range, and the controller changes the injection direction of the gas-liquid outlet so that the adjusted actual wind speed in the tunnel is equal to the target wind speed; when the predetermined difference is within a second range, the controller controls the hydraulic pressure of the gas-liquid spray to be at the minimum within an acceptable range. Within the minimum range, the angle between the jet direction of the gas-liquid outlet and the tunnel is at its minimum, and the controller adjusts the gas pressure to make the actual wind speed in the adjusted tunnel equal to the target wind speed, where the minimum value in the second range is greater than the maximum value in the first range; when the predetermined difference is within the third range, the controller controls the gas pressure of the gas-liquid spray to the maximum value within the acceptable range, the angle between the jet direction of the gas-liquid outlet and the tunnel is at its minimum, and the controller adjusts the hydraulic pressure to make the actual wind speed in the adjusted tunnel equal to the target wind speed, where the minimum value in the third range is greater than the maximum value in the second range.

2. The control system for the corner ventilation network according to claim 1, characterized in that, The control system further includes: A pressure gauge is installed on the gas-liquid pipeline, and the pressure gauge is used to detect the gas-liquid pressure of the gas-liquid spray; Multiple angle adjusters are connected one-to-one with the gas-liquid outlets. The controller controls the jet direction of the gas-liquid outlets by controlling the angle adjusters.

3. The control system for the corner ventilation network according to claim 1, characterized in that, The controller controls the air pressure and hydraulic pressure of the gas-liquid spray to be at the minimum within an acceptable range, and the controller adjusts the spray direction of the gas-liquid outlet to make the actual wind speed in the adjusted tunnel equal to the target wind speed, including: The controller sends first control information to the first regulating valve and the second regulating valve to adjust the opening of the first regulating valve and the second regulating valve to the minimum value, so that the air pressure and the hydraulic pressure are both at the minimum value; When the actual wind speed is less than the target wind speed, the controller controls the angle between the injection direction of the gas-liquid outlet and the tunnel to increase, so as to reduce the resistance of the wind speed and make the actual wind speed of the adjusted tunnel equal to the target wind speed. When the actual wind speed is greater than the target wind speed, the controller controls the angle between the injection direction of the gas-liquid outlet and the tunnel to decrease, so as to increase the resistance of the wind speed and make the actual wind speed of the adjusted tunnel equal to the target wind speed.

4. The control system for the corner ventilation network according to claim 1, characterized in that, The controller controls the hydraulic pressure of the gas-liquid spray to the minimum value within the acceptable range, the angle between the spray direction of the gas-liquid outlet and the tunnel to the minimum value, and the controller adjusts the gas pressure so that the actual wind speed in the adjusted tunnel equals the target wind speed, including: The controller sends second control information to the first regulating valve to adjust the opening of the first regulating valve to a minimum value, so that the hydraulic pressure is at a minimum value, and the controller controls the angle between the injection direction of the gas-liquid outlet and the roadway to a minimum value. When the actual wind speed is less than the target wind speed, the controller sends a third control message to the second regulating valve to adjust the opening of the second regulating valve to decrease, thereby reducing the air pressure and reducing the resistance to wind speed, so that the actual wind speed of the adjusted roadway is equal to the target wind speed. When the actual wind speed is greater than the target wind speed, the controller sends a fourth control message to the second regulating valve to increase the opening of the second regulating valve, thereby increasing the air pressure and increasing the resistance to wind speed, so that the actual wind speed in the adjusted roadway is equal to the target wind speed.

5. The control system for the corner ventilation network according to claim 1, characterized in that, The controller controls the gas pressure of the gas-liquid spray to the maximum value within the acceptable range, the angle between the spray direction of the gas-liquid outlet and the tunnel to the minimum value, and the controller adjusts the hydraulic pressure so that the actual wind speed in the adjusted tunnel equals the target wind speed, including: The controller sends a fifth control message to the second regulating valve to adjust the opening of the second regulating valve to the maximum value, so that the gas pressure is at the maximum value, and the controller controls the angle between the injection direction of the gas-liquid outlet and the tunnel to the minimum value; When the actual wind speed is less than the target wind speed, the controller sends a sixth control message to the first regulating valve to adjust the opening of the first regulating valve to decrease, thereby reducing the hydraulic pressure and reducing the resistance to wind speed, so that the actual wind speed of the adjusted roadway is equal to the target wind speed. When the actual wind speed is greater than the target wind speed, the controller sends a seventh control message to the first regulating valve to increase the opening of the first regulating valve, thereby increasing the hydraulic pressure and increasing the resistance to wind speed, so that the actual wind speed in the adjusted roadway is equal to the target wind speed.

6. The control system for the corner ventilation network according to claim 1, characterized in that, The control system further includes: A temperature sensor is located in the roadway corresponding to the corner ventilation network, and the temperature sensor is used to test the actual temperature in the roadway; A pressure sensor is located in the roadway corresponding to the corner ventilation network, and the pressure sensor is used to test the actual pressure in the roadway.

7. The control system for the corner ventilation network according to any one of claims 1 to 6, characterized in that, The control system includes a plurality of gas-liquid resistance devices spaced apart, with a plurality of gas-liquid outlets of the gas-liquid resistance devices located on two sides of the roadway and on a surface away from the ground.

8. The control system for the corner ventilation network according to any one of claims 1 to 6, characterized in that, The injection directions of the plurality of gas-liquid outlets are all at the same angle to the tunnel.

9. The control system for the corner ventilation network according to any one of claims 1 to 6, characterized in that, The gas-liquid outlet includes a nozzle.

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