Underground ventilation cooling device

Abstract

The utility model discloses an underground ventilation cooling device which comprises a cooling cylinder and a fan, and the lower portion of the cooling cylinder is fixedly installed on a movable trolley through a base. The air inlet end of the cooling cylinder is communicated with an external ventilation pipe through a silencing box; a fan, a water mist generating device, an air gathering hopper and an exhaust barrel are sequentially installed in the cooling barrel in the air flowing direction, the water mist generating device is communicated with an external cold water source and a high-pressure air source, and a water mist discharging end is arranged on the side, away from the fan, of the water mist generating device; the air gathering hopper is communicated with the air exhaust barrel through a flexible connecting pipe; an angle adjusting mechanism is installed at the tail of the cooling cylinder, and the exhaust cylinder is installed on the angle adjusting mechanism. The device is remarkable in ventilation and cooling effect, the cooling and ventilation angle can be rapidly adjusted according to operation requirements, and then the underground operation environment is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of underground operation equipment, specifically relating to an underground ventilation and cooling device. Background Technology

[0002] During underground coal mine operations, as the working face extends forward, the temperature at the tunneling face increases due to factors such as ground temperature and high summer temperatures. High underground temperatures can cause dizziness, shortness of breath, rapid heartbeat, mental confusion, difficulty concentrating, and even heatstroke and fainting among miners, seriously endangering their physical and mental health and greatly increasing the risk of workplace accidents. While mist cannons are commonly used for ventilation and cooling underground, existing cooling devices produce low amounts of mist, failing to achieve rapid and effective cooling, resulting in unsatisfactory cooling effects. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model aims to provide an underground ventilation and cooling device. This device has a significant ventilation and cooling effect and can quickly adjust the cooling and ventilation angle according to the operational needs, thereby effectively improving the underground working environment.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A well ventilation and cooling device includes a cooling cylinder and a fan. The cooling cylinder is fixedly mounted on a mobile trolley via a base. The air inlet of the cooling cylinder is connected to an external ventilation duct via a silencer box. Inside the cooling cylinder, a fan, a water mist generator, a concentrator, and an exhaust duct are sequentially installed along the airflow direction. The water mist generator is connected to an external cold water source and a high-pressure air source. The water mist outlet is located on the side of the water mist generator away from the fan. The concentrator is connected to the exhaust duct via a flexible connecting pipe. An angle adjustment mechanism is installed at the tail of the cooling cylinder, and the exhaust duct is mounted on the angle adjustment mechanism.

[0006] Preferably, the water mist generating device includes a housing, and the housing has a first inner cavity and a second inner cavity connected in the left and right directions. An external cold water source is connected to the first inner cavity from above through a water supply pipe, and a high-pressure air source is connected to the first inner cavity from below through an air pipe. Multiple spray holes are opened outward from the right side of the second inner cavity.

[0007] Preferably, an atomizing nozzle is installed at the spray hole.

[0008] Preferably, multiple flow dividers are provided at the connection between the first inner cavity and the second inner cavity.

[0009] Preferably, the diverter plate is a triangular prism design that is vertically fixed inside the housing.

[0010] Preferably, the angle adjustment mechanism includes a frame, the upper and lower ends of which are rotatably connected to the inner wall of the cooling cylinder via a first rotating shaft, and the front and rear ends of the exhaust duct are rotatably connected to the inner wall of the frame via a second rotating shaft; a first driving component for driving the exhaust duct to swing vertically is installed on the frame, and a second driving component for driving the frame to swing horizontally is installed inside the cooling cylinder.

[0011] Preferably, the first driving component includes a downwardly inclined hydraulic cylinder, the tail of which is rotatably connected to the top of the frame, and the piston rod end of which is rotatably connected to the middle of the upper end of the exhaust duct.

[0012] Preferably, the second driving component includes a connecting rod, a motor, and a screw horizontally mounted on the inner wall of the cooling cylinder. The motor is poweredly connected to the end of the screw, and a movable block is threaded onto the screw. The movable block is horizontally slidably mounted on the inner wall of the cooling cylinder near the cooling cylinder side. One end of the horizontally arranged connecting rod is rotatably connected to the movable block, and the other end is rotatably connected to the side of the frame.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. In this application, the air source outside the mine is connected to the silencer box at the end of the cooling cylinder through a ventilation pipe, which reduces the noise of the air supply and effectively delivers clean external air to the mine, thereby improving the cooling and ventilation effect of the device.

[0015] 2. External cold water and high-pressure air are sent into the first inner cavity from the top and bottom respectively, and then sent to the right into the second inner cavity for thorough water-air mixing. The mixture is then sprayed outward from the atomizing nozzle at the spray hole, thereby significantly increasing the mist production of this device. With the left fan in operation, a large amount of water mist generated by the water mist generator can be sent to the right, thereby significantly improving the ventilation and cooling effect of this device.

[0016] 3. The flow divider can evenly disperse the air and cold water entering the second inner cavity, making the water vapor more uniform at different nozzles and improving the atomization effect of the device.

[0017] 4. The wind-gathering duct can effectively gather air, while the flexible connecting pipe can connect the ventilation function without affecting the swing of the right exhaust duct when adjusting the angle.

[0018] 5. When the hydraulic cylinder of this application extends or retracts, it can drive the exhaust duct to swing up and down on the frame around the second rotating shaft, thereby adjusting the vertical angle of the exhaust duct; when the motor drives the screw to rotate, it can cause the moving block to move horizontally left and right, thereby pushing the frame to rotate horizontally around the first rotating shaft through the connecting rod, thereby adjusting the horizontal swing angle of the exhaust duct. Thus, the exhaust duct of this application can adjust the spray direction at multiple angles in the horizontal and vertical directions, so that the device can adapt to the cooling needs of different working conditions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 2 This is a top view of the installation of the angle adjustment mechanism of this utility model;

[0021] Figure 3 This is an internal cross-sectional view of the water mist generating device of this utility model. Detailed Implementation

[0022] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of application of this utility model.

[0023] like Figure 1-3 As shown, this utility model proposes an underground ventilation and cooling device, including a cooling cylinder 1 and a fan 2. The cooling cylinder 1 is fixedly mounted on a mobile trolley via a base 12, allowing the device to be transported to the work area by moving the mobile trolley. The air inlet of the cooling cylinder 1 is connected to an external ventilation pipe via a silencer box 11. The silencer box 11 adopts a commonly used sound-absorbing structure, and using the silencer box 11 to reduce ventilation noise is a common technical means used by those skilled in the art.

[0024] In this application, the air source outside the mine is connected to the silencer box 11 at the end of the cooling cylinder 1 through a ventilation pipe, which reduces the noise of the air supply and can effectively transport clean air from the outside to the mine, thereby improving the cooling and ventilation effect of the device.

[0025] Inside the cooling cylinder 1, from left to right along the airflow direction, a fan 2, a water mist generator 3, a concentrator 4, and an exhaust duct 6 are installed sequentially. The water mist generator 3 is connected to an external water supply pipe 31 and a high-pressure air source. The water mist discharge end is located on the side of the water mist generator 3 away from the fan 2. Specifically, the water mist generator 3 includes a housing 30, within which a first inner cavity 301 and a second inner cavity 302 are connected horizontally. An external cold water source is connected to the first inner cavity 301 from above via the water supply pipe 31, and a high-pressure air source is connected to the first inner cavity 301 from below via the air pipe 32. Multiple spray holes 304 are opened outwardly from the right side of the second inner cavity 302, and atomizing nozzles 33 are installed at the corresponding spray holes 304.

[0026] External cold water and high-pressure air are sent into the first inner cavity 301 from the top and bottom respectively, and then sent to the right into the second inner cavity 302 for thorough water-air mixing. The mixture is then sprayed outward from the atomizing nozzle 33 at the spray hole 304, thereby significantly increasing the mist production of the device. With the left fan 2 in operation, a large amount of water mist generated by the water mist generator 3 can be sent to the right, thereby significantly improving the ventilation and cooling effect of the device.

[0027] In addition, multiple flow dividers 303 are provided at the connection between the first inner cavity 301 and the second inner cavity 302. The flow dividers 303 are triangular prisms and are vertically fixed inside the housing 30. The flow dividers 303 can evenly disperse the air and cold water entering the second inner cavity 302, making the water vapor entering different nozzles 304 more uniform and improving the atomization effect of the device.

[0028] The air-gathering duct 4 is connected to the exhaust duct 6 via a flexible connecting pipe 5. An angle adjustment mechanism is installed at the tail end of the cooling cylinder 1, and the exhaust duct 6 is mounted on the angle adjustment mechanism. The air-gathering duct 4 can effectively gather air, while the flexible connecting pipe 5 serves to connect the ventilation function without affecting the swing of the right exhaust duct 6 during angle adjustment.

[0029] The angle adjustment mechanism includes a frame 7. The upper and lower ends of the frame 7 are rotatably connected to the inner wall of the cooling cylinder 1 via a first rotating shaft 71. The front and rear ends of the exhaust duct 6 are rotatably connected to the inner wall of the frame 7 via a second rotating shaft 72. A first driving component for vertically swinging the exhaust duct 6 is installed on the frame 7, and a second driving component for horizontally swinging the frame 7 is installed inside the cooling cylinder 1. The first driving component includes a downwardly inclined hydraulic cylinder 81. The tail of the hydraulic cylinder 81 is rotatably connected to the top of the frame 7, and the piston rod end of the hydraulic cylinder 81 is rotatably connected to the middle of the upper end of the exhaust duct 6. The second driving component includes a connecting rod 823, a motor 824, and a screw 821 horizontally installed on the inner wall of the cooling cylinder 1. The motor 824 is poweredly connected to the end of the screw 821. A moving block 822 is threaded onto the screw 821 and is horizontally slidably installed on the inner wall of the cooling cylinder 1 near the side of the screw 821. One end of the horizontally positioned connecting rod 823 is rotatably connected to the movable block 822, and the other end is rotatably connected to the side of the frame 7. In a specific implementation, a slide rail can be horizontally installed on the inner wall of the cooling cylinder 1, and the movable block 822 can be horizontally slidably installed on the slide rail, thereby effectively limiting the horizontal movement of the movable block 822.

[0030] When the hydraulic cylinder 81 of this application extends or retracts, it can drive the exhaust duct 6 to swing up and down on the frame 7 around the second rotating shaft 72, thereby adjusting the vertical angle of the exhaust duct 6. When the motor 824 drives the screw 821 to rotate, it can cause the moving block 822 to move horizontally left and right, thereby pushing the frame 7 to rotate horizontally around the first rotating shaft 71 through the connecting rod 823, thereby adjusting the horizontal swing angle of the exhaust duct 6. This allows the exhaust duct 6 of this application to adjust the spray direction at multiple angles in the horizontal and vertical directions, enabling the device to adapt to cooling needs under different working conditions.

[0031] When using this invention, clean air from outside the well enters the cooling cylinder 1 through the silencer box 11 on the left. The airflow is accelerated by the fan 2, which then blows the water mist generated by the water mist generator 3 outwards through the air condenser 4, flexible connecting pipe 5, and exhaust duct 6. During this process, the operation of the motor 824 and the telescopic cylinder is controlled according to operational needs, and the spray ventilation direction of the exhaust duct 6 is adjusted using the angle adjustment mechanism. This device has a significant ventilation and cooling effect, and the cooling and ventilation angle can be quickly adjusted according to operational needs, thereby effectively improving the underground working environment.

[0032] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this application. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A well ventilation and cooling device, comprising a cooling cylinder and a fan, characterized in that: The cooling cylinder is fixedly mounted on a mobile trolley via a base; the air inlet of the cooling cylinder is connected to an external ventilation duct via a silencer box; inside the cooling cylinder, a fan, a water mist generator, a concentrator, and an exhaust duct are installed sequentially along the airflow direction; the water mist generator is connected to an external cold water source and a high-pressure air source, and the water mist outlet is located on the side of the water mist generator away from the fan; the concentrator is connected to the exhaust duct via a flexible connecting pipe; an angle adjustment mechanism is installed at the tail of the cooling cylinder, and the exhaust duct is mounted on the angle adjustment mechanism.

2. The downhole ventilation and cooling device according to claim 1, characterized in that: The water mist generating device includes a housing, in which a first inner cavity and a second inner cavity are connected from left to right. An external cold water source is connected to the first inner cavity from above through a water supply pipe, and a high-pressure air source is connected to the first inner cavity from below through an air pipe. Multiple spray holes are provided through the right side of the second inner cavity.

3. The downhole ventilation and cooling device according to claim 2, characterized in that: An atomizing nozzle is installed at the corresponding spray hole.

4. The downhole ventilation and cooling device according to claim 2, characterized in that: Multiple flow dividers are provided at the connection between the first inner cavity and the second inner cavity.

5. The downhole ventilation and cooling device according to claim 4, characterized in that: The diverter plate is a triangular prism design that is vertically fixed inside the housing.

6. The downhole ventilation and cooling device according to claim 1, characterized in that: The angle adjustment mechanism includes a frame, the upper and lower ends of which are rotatably connected to the inner wall of the cooling cylinder via a first rotating shaft, and the front and rear ends of the exhaust duct are rotatably connected to the inner wall of the frame via a second rotating shaft; a first driving component for driving the exhaust duct to swing vertically is installed on the frame, and a second driving component for driving the frame to swing horizontally is installed inside the cooling cylinder.

7. The downhole ventilation and cooling device according to claim 6, characterized in that: The first driving component includes a hydraulic cylinder that is tilted downwards, with the tail of the hydraulic cylinder rotatably connected to the top of the frame, and the piston rod end of the hydraulic cylinder rotatably connected to the middle of the upper end of the exhaust duct.

8. The downhole ventilation and cooling device according to claim 6, characterized in that: The second driving component includes a connecting rod, a motor, and a screw rod horizontally mounted on the inner wall of the cooling cylinder. The motor is poweredly connected to the end of the screw rod, and a movable block is threaded onto the screw rod. The movable block is horizontally slidably mounted on the inner wall of the cooling cylinder near the cooling cylinder side. One end of the horizontally arranged connecting rod is rotatably connected to the movable block, and the other end is rotatably connected to the side of the frame.

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