A tunnel ventilation device

Abstract

The present invention belongs to the technical field of ventilation devices, and discloses a tunnel ventilation device, which includes a ventilation pipe, a first connecting pipe and a second connecting pipe. The ventilation pipe is fixedly connected to the first connecting pipe and the second connecting pipe through a connecting frame, and a flow dividing plate is fixedly installed inside the ventilation pipe. A first partition plate and a second partition plate that cooperate with the flow dividing plate are respectively fixedly installed inside the first connecting pipe and the second connecting pipe, and a biaxial rotating power member is fixedly installed on the first partition plate. Compared with the prior art, the beneficial effects of the present invention are as follows: multi-end pumping of air inside the tunnel is realized, thereby improving the speed and efficiency of ventilation and air exchange inside the tunnel, and the multi-end pumping ensures the stability of tunnel ventilation and air exchange. It can realize multiple filtration and collection of the air entering the tunnel and the air flowing out of the tunnel, thereby ensuring the quality of the air entering and flowing out of the tunnel, improving the air exchange effect and avoiding air pollution to the outside world.

Description

Technical Field

[0001] The present invention belongs to the technical field of ventilation devices, and particularly relates to a tunnel ventilation device. Background Art

[0002] During the use of a tunnel, it often happens that the air inside the tunnel is not easy to circulate, which will reduce the oxygen concentration in the tunnel and cause serious impacts in case of some emergencies, threatening people's lives and property safety. Therefore, ventilation and air exchange in the tunnel are required.

[0003] Most of the existing ventilation devices only extract air through a suction fan at the end of the ventilation pipe during use. However, the length of the ventilation pipe will limit the ventilation speed and there are fewer air change power sources with lower stability. It is not possible to filter and purify the air entering and leaving the tunnel multiple times, reducing the air change effect and being prone to polluting the external air. Summary of the Invention

[0004] An object of an embodiment of the present invention is to provide a tunnel ventilation device, aiming to solve the problems raised in the above background.

[0005] The present invention is implemented as follows.

[0006] A tunnel ventilation device includes a ventilation pipe, a first connecting pipe, and a second connecting pipe. The ventilation pipe is fixedly connected to the first connecting pipe and the second connecting pipe through a connecting frame, and a flow dividing plate is fixedly installed inside the ventilation pipe. A first partition plate and a second partition plate that cooperate with the flow dividing plate are respectively fixedly installed inside the first connecting pipe and the second connecting pipe. A double-axis rotating power member is fixedly installed on the first partition plate. The double-axis rotating power member penetrates through the first partition plate, and a first fan blade is fixedly installed at the end of one output shaft thereof. A rotating shaft distributed along the air flow direction is arranged inside the first connecting pipe. The rotating shaft is rotationally connected to the output shaft of the double-axis rotating power member, and second fan blades are fixedly installed at both ends of the rotating shaft. First filter screens and second filter screens distributed on both sides of the second partition plate are fixedly installed inside the second connecting pipe. The first filter screens and the second filter screens are both arranged at an angle with the horizontal plane and their inclination directions are opposite. The first filter screens are used in cooperation with a first knocking plate and a first stop block located inside the second connecting pipe. The second filter screens are used in cooperation with a second knocking plate and a second stop block located inside the second connecting pipe. A communication groove with the same inclination direction as the first filter screens is opened on the second partition plate. An external power assembly communicating with the outside air and driving the air flow inside the ventilation pipe is arranged at the outer end of the ventilation pipe.

[0007] As a further scheme of the present invention: The connecting frame is arranged in a frame structure and sleeved on the ventilation pipe, and a plurality of groups of fixed screws distributed at intervals are threadedly connected to the connecting frame.

[0008] As a further solution of the present invention: baffles are fixedly installed on the surface of the first partition plate away from the first fan blade at intervals, the rotating shaft is rotatably installed on the baffles and the rotating shaft penetrates through the baffles, and the rotating shaft is rotatably connected to the double-shaft rotating power member through a gear set.

[0009] As a further solution of the present invention: air outlet holes and air inlet holes for cooperating with the first fan blade and the second fan blade are formed in the side wall of the first connecting pipe, and multiple groups of air inlet holes are provided and are respectively located between the baffle and the second fan blade.

[0010] As a further solution of the present invention: the first knocking plate is rotatably installed on the second partition plate and is located within the projection area of the first filter screen, the first stop block is fixedly installed on the inner wall of the second connecting pipe and is arranged in a trapezoidal structure, and a gap is provided between the first stop block and the second partition plate and the gap position corresponds to the first knocking plate.

[0011] As a further solution of the present invention: the second knocking plate is rotatably installed on the inner wall of the second connecting pipe and is located within the projection area of the second filter screen, the second stop block is fixedly installed on the second partition plate and is arranged in a trapezoidal structure, and a gap is provided between the second stop block and the inner wall of the second connecting pipe and the gap corresponds to the position of the second knocking plate.

[0012] As a further solution of the present invention: a discharge chute is formed in the second connecting pipe and a collection box is detachably connected to the second connecting pipe, and a guide plate with an inclination direction opposite to that of the first filter screen is fixedly installed in the discharge chute.

[0013] As a further solution of the present invention: the external power assembly includes installation cover plates, multiple groups of installation cover plates are respectively detachably installed at the outer ends of the ventilation pipes, multiple groups of air holes communicating with the two side areas of the flow dividing plate in the ventilation pipe are formed in the installation cover plates, power shafts are rotatably installed on the installation cover plates and are parallelly distributed on both sides of the flow dividing plate, a third fan blade is fixedly installed at one end of the power shaft located in the ventilation pipe, and the rotation directions of the two groups of third fan blades are opposite.

[0014] As a further solution of the present invention: a single-shaft rotating power member is fixedly installed on the outer surface of the installation cover plate, a first gear is fixedly installed at the output end of the single-shaft rotating power member, and the first gear meshes with a second gear fixedly installed at the end of the power shaft.

[0015] Compared with the prior art, the beneficial effects of the present invention are: realizing the multi-end pumping of the air in the tunnel, thereby improving the speed and efficiency of ventilation and air change in the tunnel, and the multi-end pumping ensures the stability of the ventilation and air change in the tunnel, and can realize the multiple filtration and collection of the air entering the tunnel and the air flowing out of the tunnel, thereby ensuring the quality of the air entering the tunnel and the air flowing out of the tunnel, improving the air change effect and avoiding air pollution to the outside world. Description of the Drawings

[0016] Figure 1 It is the front view of a tunnel ventilation device.

[0017] Figure 2 It is Figure 1 the enlarged view at A1 in

[0018] Figure 3 It is Figure 1 the enlarged view at A2 in

[0019] Figure 4 It is Figure 1 the enlarged view at A3 in

[0020] Figure 5 It is the structural schematic diagram of the first partition board in a tunnel ventilation device.

[0021] In the attached drawings: 1. ventilation pipe; 2. first connecting pipe; 3. second connecting pipe; 4. installation cover plate; 5. connecting frame; 6. fixing screw; 7. flow dividing plate; 8. first partition board; 9. biaxial rotating power part; 10. first fan blade; 11. air outlet hole; 12. baffle; 13. rotating shaft; 14. second fan blade; 15. bevel gear; 16. air inlet hole; 17. second partition board; 18. first stop block; 19. first filter screen; 20. first knocking plate; 21. collecting box; 22. guide plate; 23. second stop block; 24. second filter screen; 25. second knocking plate; 26. communication groove; 27. uniaxial rotating power part; 28. first gear; 29. power shaft; 30. second gear; 31. third fan blade; 32. external power assembly. Specific Embodiments

[0022] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the attached drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0023] The following describes the specific implementation of the present invention in detail with reference to specific embodiments.

[0024] As Figures 1 - 5As shown, as a preferred embodiment of the present invention, a tunnel ventilation device includes a ventilation pipe 1, a first connecting pipe 2, and a second connecting pipe 3. The ventilation pipe 1 is fixedly connected to the first connecting pipe 2 and the second connecting pipe 3 through a connecting frame 5, and a flow dividing plate 7 is fixedly installed inside the ventilation pipe 1. A first partition plate 8 and a second partition plate 17 that cooperate with the flow dividing plate 7 are respectively fixedly installed inside the first connecting pipe 2 and the second connecting pipe 3. A biaxial rotary power member 9 is fixedly installed on the first partition plate 8. The biaxial rotary power member 9 penetrates the first partition plate 8, and a first fan blade 10 is fixedly installed at the end of one output shaft thereof. A rotating shaft 13 distributed along the air flow direction is arranged inside the first connecting pipe 2. The rotating shaft 13 is rotatably connected to the output shaft of the biaxial rotary power member 9, and second fan blades 14 are fixedly installed at both ends of the rotating shaft 13. A first filter screen 19 and a second filter screen 24 distributed on both sides of the second partition plate 17 are fixedly installed inside the second connecting pipe 3. Both the first filter screen 19 and the second filter screen 24 form an angle with the horizontal plane and their inclination directions are opposite. The first filter screen 19 is used in cooperation with a first knocking plate 20 and a first stopper 18 located inside the second connecting pipe 3. The second filter screen 24 is used in cooperation with a second knocking plate 25 and a second stopper 23 located inside the second connecting pipe 3. A communication groove 26 with the same inclination direction as the first filter screen 19 is opened on the second partition plate 17. An external power assembly 32 that communicates with the outside air and drives the air flow inside the ventilation pipe 1 is arranged at the outer end of the ventilation pipe 1.

[0025] The connecting frame 5 is arranged in a frame structure and sleeved on the ventilation pipe 1, and a plurality of groups of spaced fixing screws 6 are threadedly connected to the connecting frame 5.

[0026] In the actual application of the embodiment of the present invention, the first connecting pipe 2 is fixed in the middle of the tunnel, and then the ventilation pipes 1 and the second connecting pipes 3 are respectively connected to both sides until the outer ends of the outermost ventilation pipes 1 extend out of the tunnel. The ventilation pipes 1 are fixedly connected to the first connecting pipe 2 and the second connecting pipe 3 through the connecting frames 5 and the fixing screws 6. Then, the external power assembly 32 and the double-shaft rotating power member 9 are started. The external power assembly 32 drives the air located on both sides of the flow dividing plate 7 in the ventilation pipes 1 to flow from both ends of the ventilation pipes 1, and the air flow directions are opposite, so as to realize blowing air into the tunnel from the outside and exhausting air from the inside of the tunnel. At the same time, the double-shaft rotating power member 9 drives the first fan blades 10 and the second fan blades 14 to rotate. The rotation of the first fan blades 10 blows the air in its area into the tunnel through the air outlet holes 11, so as to accelerate the entry of the outside air into the tunnel. The rotation of the second fan blades 14 blows the air in its area into the ventilation pipes 1 on both sides, so that the air in the tunnel enters the first connecting pipe 2 through the air inlet holes 16, and then accelerates the extraction of the air in the tunnel to the outside, thus realizing the multi-end extraction of the air in the tunnel, improving the speed and efficiency of ventilation and air change in the tunnel, and the multi-end extraction ensures the stability of ventilation and air change in the tunnel. When the air in the ventilation pipes 1 flows into the second connecting pipes 3, the air is filtered by the first filter screen 19 and the second filter screen 24. Due to the existence of the first stop block 18 and the second stop block 23, the flow space is reduced. When the air flows through the gaps, it will blow towards the first knocking plate 20 and the second knocking plate 25, so that the first knocking plate 20 and the second knocking plate 25 rotate under the blowing of the air. When the first knocking plate 20 and the second knocking plate 25 rotate, the area of them being blown by the wind decreases, so that they fall under the action of gravity. Then the air blows the first knocking plate 20 and the second knocking plate 25 to rotate again, so as to be able to repeatedly knock the first filter screen 19 and the second filter screen 24. The dust and impurities on the surfaces of the first filter screen 19 and the second filter screen 24 are shaken off and move under the blowing of the air. The dust falling on the second filter screen 24 enters the lower side through the communication groove 26 and then follows the dust on the first filter screen 19 into the collecting component under the blowing of the air. Through the arrangement of a plurality of second connecting pipes 3, the multiple filtration and collection of the air entering the tunnel and the air flowing out of the tunnel can be realized, so as to ensure the quality of the air entering the tunnel and the air flowing out of the tunnel, improve the air change effect and avoid air pollution to the outside world.

[0027] In an example of the present invention, the double-shaft rotating power member 9 is a double-shaft motor. Of course, it can also be other components such as a hydraulic motor that can output rotational power. The double-shaft motor drives the first fan blades 10 and the second fan blades 14 to rotate, so as to accelerate the air flow.

[0028] Such as Figure 1 、 Figure 2 、 Figure 5As shown, as a preferred embodiment of the present invention, baffles 12 are fixedly installed on the surface of the first partition 8 away from the first fan blade 10 at intervals. The rotating shaft 13 is rotatably installed on the baffle 12 and the rotating shaft 13 penetrates through the baffle 12. The rotating shaft 13 is rotatably connected to the double-shaft rotating power member 9 through a gear set.

[0029] Air outlet holes 11 and air inlet holes 16 for cooperating with the first fan blade 10 and the second fan blade 14 are provided on the side wall of the first connecting pipe 2. Multiple groups of air inlet holes 16 are provided and are respectively located between the baffle 12 and the second fan blade 14.

[0030] In the actual application of the embodiment of the present invention, the double-shaft rotating power member 9 drives the first fan blade 10 to rotate, so as to blow the air in its area into the tunnel through the air outlet holes 11. At the same time, the double-shaft rotating power member 9 drives the rotating shaft 13 to rotate through the gear set and makes the second fan blade 14 rotate, so as to blow the air in its area into the ventilation pipes 1 on both sides, and further make the air in the tunnel enter the first connecting pipe 2 through the air inlet holes 16.

[0031] In an example of the present invention, the gear set is a bevel gear 15. Multiple groups of bevel gears 15 are provided and are respectively fixedly installed on the output shaft of the double-shaft rotating power member 9 and the rotating shaft 13. The double-shaft rotating power member 9 drives the rotating shaft 13 to rotate through the meshing bevel gears 15.

[0032] As Figure 1 、 Figure 3 shown, as a preferred embodiment of the present invention, the first knocking plate 20 is rotatably installed on the second partition 17 and is located in the projection area of the first filter screen 19 towards the second partition 17. The first stop block 18 is fixedly installed on the inner wall of the second connecting pipe 3 and is set as a trapezoidal structure. A gap is provided between the first stop block 18 and the second partition 17, and the gap position corresponds to the distribution of the first knocking plate 20.

[0033] The second knocking plate 25 is rotatably installed on the inner wall of the second connecting pipe 3 and is located in the projection area of the second filter screen 24. The second stop block 23 is fixedly installed on the second partition 17 and is set as a trapezoidal structure. A gap is provided between the second stop block 23 and the inner wall of the second connecting pipe 3, and the gap corresponds to the position of the second knocking plate 25.

[0034] A discharge slot is provided on the second connecting pipe 3, and a collection box 21 is detachably connected to the second connecting pipe 3. A guide plate 22 with an inclination direction opposite to that of the first filter screen 19 is fixedly installed in the discharge slot.

[0035] In the actual application of the embodiment of the present invention, when the air in the ventilation pipe 1 flows into the second connecting pipe 3, the air is filtered by the first filter screen 19 and the second filter screen 24. Due to the presence of the first stop block 18 and the second stop block 23, the flow space is reduced. When the air flows through the gap, it will blow towards the first knocking plate 20 and the second knocking plate 25, so that the first knocking plate 20 and the second knocking plate 25 rotate under the blowing of the air. When the first knocking plate 20 and the second knocking plate 25 rotate, the area affected by the wind decreases, so that they fall under the action of gravity. Then the air blows the first knocking plate 20 and the second knocking plate 25 to rotate again, so that the first filter screen 19 and the second filter screen 24 can be repeatedly knocked. The dust and impurities on the surfaces of the first filter screen 19 and the second filter screen 24 are shaken off and move under the blowing of the air. The dust falling on the second filter screen 24 enters the lower side through the communication groove 26 and then follows the dust on the first filter screen 19 and enters the collection box 21 under the action of the blowing air and the guide plate 22, thus realizing the filtration of the air and the collection of the dust.

[0036] As Figure 1 , Figure 4 shown, as a preferred embodiment of the present invention, the external power assembly 32 includes a mounting cover plate 4. There are multiple groups of mounting cover plates 4, which are respectively detachably installed at the outer ends of the ventilation pipes 1. Multiple groups of air holes communicating with the two sides of the flow dividing plate 7 in the ventilation pipes 1 are opened on the mounting cover plates 4. Power shafts 29 are rotatably installed on the mounting cover plates 4 and are parallelly distributed on both sides of the flow dividing plate 7. One end of the power shaft 29 located inside the ventilation pipe 1 is fixedly installed with third fan blades 31, and the rotation directions of the two groups of third fan blades 31 are opposite.

[0037] A single-axis rotary power member 27 is fixedly installed on the outer surface of the mounting cover plate 4. The output end of the single-axis rotary power member 27 is fixedly installed with a first gear 28, and the first gear 28 meshes with a second gear 30 fixedly installed at the end of the power shaft 29.

[0038] In the actual application of the embodiment of the present invention, the single-axis rotary power member 27 drives the power shaft 29 to rotate through the first gear 28 and the second gear 30, and then drives the third fan blades 31 to rotate. Since the rotation directions of the two groups of third fan blades 31 are opposite, it further makes the air on one side of the flow dividing plate 7 in the ventilation pipe 1 flow to the outside through the air holes, and the outside air enters the area on the other side of the flow dividing plate 7 in the ventilation pipe 1 and flows into the tunnel. It can make the air flow directions on both sides of the flow dividing plate 7 in the ventilation pipe 1 different, so as to realize the air supply from the outside of the tunnel to the inside and the air extraction from the inside of the tunnel to the outside, and improve the speed and efficiency of the air change and ventilation in the tunnel.

[0039] In an example of the present invention, the uniaxial rotating power member 27 is a motor. Of course, it can also be other components such as a hydraulic motor that can output rotational power. The motor drives the third fan blade 31 to rotate, thereby promoting the air flow in the ventilation pipe 1.

[0040] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A tunnel ventilation device, comprising a ventilation pipe, a first connecting pipe, and a second connecting pipe. The ventilation pipe is fixedly connected to the first connecting pipe and the second connecting pipe through a connecting frame, and a flow dividing plate is fixedly installed inside the ventilation pipe. Characterized in that, A first partition plate and a second partition plate, which are used in cooperation with the flow dividing plate, are respectively fixedly installed inside the first connecting pipe and the second connecting pipe. A double-axis rotating power member is fixedly installed on the first partition plate. The double-axis rotating power member penetrates through the first partition plate, and a first fan blade is fixedly installed at the end of one output shaft thereof. A rotating shaft is arranged inside the first connecting pipe along the air flow direction. The rotating shaft is rotationally connected to the output shaft of the double-axis rotating power member, and second fan blades are fixedly installed at both ends of the rotating shaft. A first filter screen and a second filter screen, which are distributed on both sides of the second partition plate, are fixedly installed inside the second connecting pipe. Both the first filter screen and the second filter screen form an angle with the horizontal plane and their inclination directions are opposite. The first filter screen is used in cooperation with a first knocking plate and a first stopper located inside the second connecting pipe. The second filter screen is used in cooperation with a second knocking plate and a second stopper located inside the second connecting pipe. A communication groove with the same inclination direction as the first filter screen is opened on the second partition plate. An external power assembly, which is communicated with the outside air and drives the air flow inside the ventilation pipe, is arranged at the outer end of the ventilation pipe; On the surface of the first partition plate away from the first fan blade, baffles are fixedly installed at intervals. The rotating shaft is rotatably installed on the baffles and penetrates through the baffles. The rotating shaft is rotationally connected to the double-axis rotating power member through a gear set. Air outlet holes and air inlet holes, which are used in cooperation with the first fan blade and the second fan blades, are opened on the side wall of the first connecting pipe. Multiple groups of air inlet holes are provided and are respectively located between the baffle and the second fan blade. The first knocking plate is rotatably installed on the second partition plate and is located within the projection area of the first filter screen. The first stopper is fixedly installed on the inner wall of the second connecting pipe and is arranged in a trapezoidal structure. A gap is provided between the first stopper and the second partition plate, and the gap position corresponds to the distribution of the first knocking plate. The second knocking plate is rotatably installed on the inner wall of the second connecting pipe and is located within the projection area of the second filter screen. The second stopper is fixedly installed on the second partition plate and is arranged in a trapezoidal structure. A gap is provided between the second stopper and the inner wall of the second connecting pipe, and the gap corresponds to the position of the second knocking plate.

2. The tunnel ventilation device according to claim 1, Characterized in that, The connecting frame is arranged in a frame structure and sleeved on the ventilation pipe. Multiple groups of fixing screws are threadedly connected to the connecting frame at intervals.

3. The tunnel ventilation device according to claim 1, Characterized in that, A discharge slot is opened on the second connecting pipe, and a collection box is detachably connected to the second connecting pipe. A guide plate with an inclination direction opposite to that of the first filter screen is fixedly installed in the discharge slot.

4. The tunnel ventilation device according to claim 1, Characterized in that, The external power component includes installation cover plates. There are multiple groups of installation cover plates, which are respectively detachably installed at the outer ends of the ventilation pipes. Multiple groups of air holes are formed in the installation cover plates and communicate with the areas on both sides of the flow dividing plate in the ventilation pipes. Power shafts are rotatably installed on the installation cover plates and are parallelly distributed on both sides of the flow dividing plate. A third fan blade is fixedly installed at one end of the power shaft located in the ventilation pipe, and the rotation directions of the two third fan blades are opposite.

5. A tunnel ventilation device according to claim 4, wherein, a single-axis rotary power component is fixedly installed on the outer surface of the installation cover plate, a first gear is fixedly installed at the output end of the single-axis rotary power component, and the first gear meshes with a second gear fixedly installed at the end of the power shaft.

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