Tunnel ventilation device

Abstract

The present invention belongs to the field of tunnel ventilation, specifically a tunnel ventilation device, including a ventilation pipe and a plurality of absorption boxes, wherein the plurality of absorption boxes are arranged in parallel at equal intervals, and I-shaped steels are fixedly connected between adjacent absorption boxes. A negative pressure component is arranged on the inner side of the absorption box, and the negative pressure component is used to absorb external air, filter it and then spray it outwardly. The ventilation pipe is composed of a plurality of assembled pipes connected end to end, and a mixing hole corresponding to the absorption box is opened on the outer side of the assembled pipe. Through the arrangement of the ventilation pipe and the absorption box, the external air is sent into the ventilation pipe by a blower, and then the negative pressure component in the absorption box is turned on to guide and absorb the airflow sprayed from the ventilation pipe. The airflow passes through both sides of the entire tunnel and carries dust and bacteria in the tunnel, and is finally adsorbed and filtered by the negative pressure component. Then, the airflow sprayed from the absorption box is not only rich in oxygen, but also low in dust and pollution, thereby effectively improving the air quality in the tunnel.

Description

Technical Field

[0001] The invention belongs to the field of tunnel ventilation, in particular to a tunnel ventilation device. Background Art

[0002] A tunnel is an engineering structure buried in the ground. It is a form of utilizing underground space. Tunnels can be divided into traffic tunnels, hydraulic tunnels, municipal tunnels, mining tunnels, and military tunnels. The structure of a tunnel consists of two parts: the main building and ancillary equipment. The main building consists of a tunnel body and a tunnel portal. The ancillary equipment includes a car shelter, fire-fighting facilities, emergency communications, and drainage facilities. Long tunnels also have special ventilation and lighting equipment.

[0003] Due to the special narrow and long space structure of the tunnel, the internal air cannot circulate with the outside air. Therefore, the tunnel needs to be equipped with ventilation equipment both during the construction process and after it is put into use to ensure sufficient oxygen in the tunnel.

[0004] Traditional tunnel ventilation generally uses blowers and other equipment to send air from the outside environment directly into the tunnel. However, due to the ongoing mining, the tunnel under construction is still filled with a large amount of dust and harmful gases produced by being buried underground for too long. Simply sending in air is far from enough.

[0005] To this end, the present invention provides a tunnel ventilation device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problems is: a tunnel ventilation device described in the present invention comprises a ventilation pipe and a plurality of absorption boxes, the plurality of absorption boxes are arranged in parallel at equal intervals, and I-shaped steels are fixedly connected between adjacent absorption boxes. A negative pressure component is arranged on the inner side of the absorption box, and the negative pressure component is used to absorb external air and spray it outward after filtering. The ventilation pipe is composed of a plurality of assembled pipes connected end to end, and a mixing hole corresponding to the absorption box is opened on the outer side of the assembled pipe. Through the arrangement of the ventilation pipe and the absorption box, the external air is sent into the ventilation pipe through a blower, and the input air is discharged into the tunnel through the mixing hole. The ventilation pipe and the absorption box are distributed on both sides of the tunnel, and then the negative pressure component in the absorption box is opened to guide and absorb the airflow sprayed from the ventilation pipe. The airflow passes through both sides of the entire tunnel and carries dust and bacteria in the tunnel, and is finally adsorbed and filtered by the negative pressure component. Then, the airflow sprayed from the absorption box is not only rich in oxygen, but also has low dust and pollution, which effectively improves the air quality in the tunnel.

[0008] Preferably, a central tube is fixedly connected to the interior of the ventilation tube, the outer diameter of the central tube is smaller than the inner diameter of the ventilation tube, the outer side of the central tube is fixedly fitted with the inner wall of the ventilation tube away from the absorption box, the end of the central tube close to the blower is connected to a water pump, and a plurality of atomizing nozzles connected to the interior of the central tube are fixedly connected to the outer side of the central tube, the plurality of atomizing nozzles are aligned with the plurality of mixing holes, and since the atomizing nozzles and the mixing holes are aligned, the sprayed water mist will combine with the airflow and can be smoothly sprinkled to the position of the absorption box, and the atomized water droplets can better combine with the particulate matter in the air, effectively improving the effect of purifying the air.

[0009] Preferably, the central tube is arranged in sections, the length of each section of the central tube is the same as the length of the assembling tube, adjacent central tubes and adjacent assembling tubes are fixedly connected by flanges, the blower is fixedly connected to the outer surface of the water pump, and the output end of the blower is fixedly connected to a plurality of interpenetrating tubes, and the plurality of interpenetrating tubes extend into the gap between the central tube and the ventilation tube. The central tube and the ventilation tube are mutually socketed to save space, and the water mist sprayed from the central tube can better ride on the jetted airflow, mix with each other and float farther. The central tube and the assembling tube can be spliced ​​and extended, so that the entire equipment can be lengthened according to the construction progress, so as to better adapt to the working environment.

[0010] Preferably, the absorption box is provided with an absorption hole on one side close to the ventilation pipe, and air outlets are provided on the top surface and both sides of the absorption box. Two driving motors are fixedly connected to the inside of the absorption box, and a transmission rod is fixedly connected to the output end of the driving motor, and an air suction fan is fixedly connected to the end of the transmission rod. A winding roller one is rotatably connected to the top of the absorption box close to the ventilation pipe, and a winding roller two is rotatably connected to the bottom of the absorption box, and a reduction motor is fixedly connected to one end of the winding roller two. A filter layer is connected between the winding roller two and the winding roller one, and the filter layer is composed of two layers of non-woven fabric sandwiched between a layer of filter paper rich in disinfectant alcohol, which can filter water droplets and particulate matter in the passing air and can also perform simple disinfection work, thereby ensuring that the ejected airflow is clean and hygienic. After long-term use, the filter layer will gradually lose its filtering effect, and the reduction motor drives the winding roller two to rotate, and continuously winds up the filter layer, thereby continuously updating the filter layer outside the absorption hole, ensuring that the filtering effect is always efficient.

[0011] Preferably, a jet pipe is fixedly connected to the outer side of the air outlet of the absorption box, the jet pipe located at the top of the absorption box is bent, and the jet pipes located on both sides of the absorption box are inclined. Three groups of guide fans are provided on the inner side of the absorption box, and the three groups of guide fans are respectively facing the directions of the three jet pipes. A power assembly is provided at one end of the guide fan, and the power assembly is used to drive the guide fan to rotate. The air after entering the absorption box is transported toward the direction of the three jet pipes under the rotation of the guide fan. The three inclined jet pipes can diffuse the ejected airflow to a distance, and because of the inclined setting, the ejected airflow will not collide with the airflow ejected from the mixing hole, and the problem of uneven dispersion of the filtered air is also reduced.

[0012] Preferably, the power assembly includes a main bevel gear, which is fixedly connected to the middle part of the transmission rod located above, and three driven bevel gears arranged in a ring are meshed on the outer side of the main bevel gear, and there are gaps between the three driven bevel gears. A rotating rod is fixedly connected to the middle part of the driven bevel gear, and the rotating rod is fixedly connected to the guide fan. Three limit seats are fixedly connected to the inner side of the absorption box, and the rotating rod is rotatably connected to the limit seats. When the suction fan rotates, the transmission rod will drive the main bevel gear to rotate, thereby driving the three meshing driven bevel gears to rotate, and then driving the guide fan to rotate, guiding the air in the absorption box to be sprayed in the direction of the injection pipe. Through this arrangement, the three guide fans can be driven to rotate without setting up new power electrical appliances.

[0013] Preferably, a storage seat is fixedly connected to one side of the assembled tube close to the absorption box, and the storage seat is open at one end close to the absorption box, a telescopic hose is fixedly connected to the open end of the storage seat, an atomizing nozzle is fixedly connected to the end of the telescopic hose, a valve assembly is provided on the inner side of the mixing hole, and the valve assembly is used to close the mixing hole and the atomizing nozzle, and a connecting assembly for connecting is provided between the storage seat and the assembled tube and the central tube. Through the setting of the atomizing nozzle, the diameter of the atomizing nozzle is several times that of the atomizing nozzle, and a large amount of dust-reducing water mist can be generated. Through the setting of the telescopic hose, the telescopic hose can be taken out of the storage seat and the direction of the atomizing nozzle can be changed at will, so that the construction site can be targeted for dust reduction without using new dust reduction equipment, thereby improving the practicability of the equipment.

[0014] Preferably, the valve assembly includes a baffle, which slides in the middle of the mixing hole, and an elastic sealing gasket is fixedly connected to one end of the baffle close to the atomizing nozzle. A pulling assembly is provided on the outer side of the baffle, and the pulling assembly is used to drive the baffle to slide left and right on the surface of the mixing hole. The baffle is driven to slide by the pulling assembly to seal the mixing hole, so that the air in the ventilation pipe cannot flow out of the mixing hole. At the same time, the elastic sealing gasket at one end of the baffle close to the atomizing nozzle will deform itself when sliding to the atomizing nozzle, thereby blocking the output end of the atomizing nozzle, so that neither the airflow nor the water source can be sprayed out, and can only act on the atomizing nozzle, thereby ensuring that the atomizing nozzle has sufficient dust-reducing water mist.

[0015] Preferably, the pulling assembly includes a steel cable, which passes through the ventilation pipe and is slidably connected to the inside of the ventilation pipe. A linkage block is fixedly connected between the steel cable and the baffle. Electric cylinders are fixedly connected to both ends of the steel cable. The steel cable is pulled by the electric cylinders at both ends of the steel cable to move in the direction of the ventilation pipe, thereby pulling the baffle to slide in the middle and upper part of the mixing hole. This arrangement achieves the effect of simultaneously controlling all baffles to slide and open and close, without the need to set up multiple electromagnetic valves for control.

[0016] Preferably, the connecting component includes a through-tube, which passes through the central tube and the assembling tube and connects the storage seat with the telescopic hose. The through-tube is connected to the central tube. A switch valve is provided at one end of the through-tube located at the storage seat. The control end of the switch valve passes through the top of the storage seat and leaks to the outside. When all the baffles block the mixing hole, the through-tube is opened through the switch valve of the storage seat leaking to the outside, so that the through-tube can be connected to the central tube, and the internal high-pressure water source is sprayed out through the atomizing nozzle, thereby achieving the effect of fixed-point dust reduction.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. A tunnel ventilation device described in the present invention, through the setting of ventilation pipes and absorption boxes, sends outside air into the ventilation pipes through a blower, discharges the input air into the tunnel through the mixing hole, distributes the ventilation pipes and absorption boxes on both sides of the tunnel, and then turns on the negative pressure component in the absorption box to guide and absorb the airflow sprayed from the ventilation pipe. The airflow passes through both sides of the entire tunnel and carries the dust and bacteria in the tunnel, and is finally adsorbed and filtered by the negative pressure component. After that, the airflow sprayed from the absorption box is not only rich in oxygen, but also low in dust and pollution, thereby effectively improving the air quality in the tunnel.

[0019] 2. The tunnel ventilation device described in the present invention draws water from the outside through a water pump, and sends the water to the atomizing nozzle through a central pipe for spraying. Since the atomizing nozzle and the mixing hole are aligned, the sprayed water mist will combine with the airflow and can be smoothly sprinkled to the position of the absorption box, and the atomized water droplets can better combine with the particulate matter in the air, effectively improving the effect of purifying the air. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 is a stereogram of the present invention;

[0022] Figure 2 This is a front view of the splicing tube and the absorption box of the present invention;

[0023] Figure 3 It is a stereoscopic diagram of the spliced ​​tube and the center tube in the present invention;

[0024] Figure 4 is a three-dimensional diagram of the center tube and baffle of the present invention;

[0025] Figure 5 is a three-dimensional diagram of the absorption box of the present invention;

[0026] Figure 6 is a cross-sectional view of the absorption box of the present invention;

[0027] In the figure: 1. ventilation pipe; 2. water pump; 3. absorption box; 4. I-shaped steel; 5. injection pipe; 6. driving motor; 7. assembly pipe; 8. mixing hole; 9. atomizing nozzle; 10. atomizing nozzle; 11. flange; 12. center pipe; 13. blower; 14. inserted pipe; 15. steel cable; 16. storage seat; 17. telescopic hose; 18. baffle; 19. through pipe; 20. winding roller one; 21. winding roller two; 22. suction fan; 23. transmission rod; 24. limit seat; 25. guide fan; 26. driven bevel gear; 27. main bevel gear; 28. filter layer. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] Embodiment 1

[0030] like Figure 1 to Figure 2As shown, a tunnel ventilation device described in an embodiment of the present invention includes a ventilation pipe 1 and a plurality of absorption boxes 3, wherein the plurality of absorption boxes 3 are arranged in parallel at equal distances, and an I-shaped steel 4 is fixedly connected between adjacent absorption boxes 3. A negative pressure component is arranged on the inner side of the absorption box 3, and the negative pressure component is used to absorb external air, and then spray it out after filtering. The ventilation pipe 1 is composed of a plurality of assembled pipes 7 connected end to end, and a mixing hole 8 corresponding to the absorption box 3 is opened on the outer side of the assembled pipe 7. When working, conventional tunnel ventilation generally directly uses equipment such as a blower 13 to directly send air from the external environment into the tunnel. However, due to the progress of mining in the tunnel under construction, a large amount of air is still permeated in the tunnel. Dust, as well as harmful gases generated by being buried underground for too long, simply introducing air is far from enough. Through the arrangement of the ventilation pipe 1 and the absorption box 3, the outside air is sent into the ventilation pipe 1 through the blower 13, and the input air is discharged into the tunnel through the mixing hole 8. The ventilation pipe 1 and the absorption box 3 are distributed on both sides of the tunnel, and then the negative pressure component in the absorption box 3 is turned on to guide and absorb the airflow ejected from the ventilation pipe 1. The airflow passes through both sides of the entire tunnel and carries the dust and bacteria in the tunnel. Finally, it is adsorbed and filtered by the negative pressure component. After that, the airflow ejected from the absorption box 3 is not only rich in oxygen, but also low in dust and pollution, which effectively improves the air quality in the tunnel.

[0031] like Figures 2 to 3 As shown, a central tube 12 is fixedly connected to the interior of the ventilation tube 1, and the outer diameter of the central tube 12 is smaller than the inner diameter of the ventilation tube 1. The outer side of the central tube 12 is fixedly fitted with the inner wall of the ventilation tube 1 away from the absorption box 3. The end of the central tube 12 close to the blower 13 is connected to the water pump 2. The outer side of the central tube 12 is fixedly connected with a plurality of atomizing nozzles 9 connected to the interior of the central tube 12. The plurality of atomizing nozzles 9 are aligned with the plurality of mixing holes 8. When working, water is drawn from the outside through the water pump 2, and the water is sent to the atomizing nozzle 9 through the central tube 12 for spraying. Since the atomizing nozzle 9 is aligned with the mixing hole 8, the sprayed water mist will combine with the airflow and can be smoothly sprinkled to the position of the absorption box 3, and the atomized water droplets can better combine with the particulate matter in the air, effectively improving the effect of purifying the air.

[0032] like Figures 2 to 3As shown, the central tube 12 is arranged in sections, and the length of each section of the central tube 12 is the same as the length of the assembling tube 7. The adjacent central tubes 12 and the adjacent assembling tubes 7 are fixedly connected by flanges 11. The blower 13 is fixedly connected to the outer surface of the water pump 2. The output end of the blower 13 is fixedly connected to multiple interpenetrating tubes 14, and the multiple interpenetrating tubes 14 extend into the gap between the central tube 12 and the ventilation tube 1. When working, the central tube 12 and the ventilation tube 1 are mutually sleeved to save space, and the water mist sprayed from the central tube 12 can better ride on the sprayed airflow, mix with each other and float farther. The central tube 12 and the assembling tube 7 can be spliced ​​and extended, so that the entire equipment can be lengthened according to the construction progress, so as to better adapt to the working environment.

[0033] like Figure 2 , Figure 5 and Figure 6 As shown, the absorption box 3 is provided with an absorption hole on one side close to the ventilation pipe 1, and air outlets are provided on the top surface and both sides of the absorption box 3. Two driving motors 6 are fixedly connected inside the absorption box 3, and a transmission rod 23 is fixedly connected to the output end of the driving motor 6, and an air suction fan 22 is fixedly connected to the end of the transmission rod 23. A winding roller 1 20 is rotatably connected to the top of the absorption box 3 close to the ventilation pipe 1, and a winding roller 21 is rotatably connected to the bottom of the absorption box 3. A reduction motor is fixedly connected to one end of the winding roller 21, and a filter layer 28 is connected between the winding roller 21 and the winding roller 1 20. When working, the transmission rod 23 is driven by the driving motor 6. The suction fan 22 rotates, thereby generating suction in the absorption hole, sucking in the outside air, and then discharging the sucked air through the air outlet. By adding a filter layer 28 on the outside of the absorption hole, the filter layer 28 is composed of two layers of non-woven fabric sandwiched between a layer of filter paper rich in disinfectant alcohol, which can filter water droplets and particulate matter in the passing air, and can also perform simple disinfection work, thereby ensuring that the ejected airflow is clean and hygienic. After long-term use, the filter layer 28 will gradually lose its filtering effect. The reduction motor drives the winding roller 21 to rotate, and continuously rewinds the filter layer 28, thereby continuously updating the filter layer 28 on the outside of the absorption hole, thereby ensuring that the filtering effect is always efficient.

[0034] like Figures 5 and 6As shown, a jet pipe 5 is fixedly connected to the outer side of the air outlet of the absorption box 3, the jet pipe 5 located at the top of the absorption box 3 is bent, and the jet pipes 5 located on both sides of the absorption box 3 are inclined. Three groups of guide fans 25 are arranged on the inner side of the absorption box 3, and the three groups of guide fans 25 are respectively facing the directions of the three jet pipes 5. A power component is arranged at one end of the guide fan 25, and the power component is used to drive the guide fan 25 to rotate. When working, the air after entering the absorption box 3 is transported toward the direction of the three jet pipes 5 under the rotation of the guide fan 25, and the three inclined jet pipes 5 can diffuse the ejected airflow to a distance, and because of the inclined arrangement, the ejected airflow will not collide with the airflow ejected from the mixing hole 8, and the problem of uneven dispersion of the filtered air is also reduced.

[0035] like Figures 5 and 6 As shown, the power assembly includes a main bevel gear 27, which is fixedly connected to the middle part of the transmission rod 23 located above, and three driven bevel gears 26 arranged in a ring are meshed on the outer side of the main bevel gear 27, and there are gaps between the three driven bevel gears 26. A rotating rod is fixedly connected to the middle part of the driven bevel gear 26, and the rotating rod is fixedly connected to the guide fan 25. Three limit seats 24 are fixedly connected to the inner side of the absorption box 3, and the rotating rod is rotatably connected to the limit seats 24. During operation, when the suction fan 22 rotates, the transmission rod 23 will drive the main bevel gear 27 to rotate, thereby driving the three meshing driven bevel gears 26 to rotate, and then driving the guide fan 25 to rotate, guiding the air in the absorption box 3 to be sprayed in the direction of the injection pipe 5. Through this arrangement, the three guide fans 25 can be driven to rotate without setting up new power electrical appliances.

[0036] like Figures 2 to 4As shown, a receiving seat 16 is fixedly connected to one side of the assembled pipe 7 close to the absorption box 3, and an end of the receiving seat 16 close to the absorption box 3 is open. A telescopic hose 17 is fixedly connected to the open end of the receiving seat 16, and an atomizing nozzle 10 is fixedly connected to the end of the telescopic hose 17. A valve assembly is arranged on the inner side of the mixing hole 8, and the valve assembly is used to close the mixing hole 8 and the atomizing nozzle 9. A connecting assembly for connecting is arranged between the receiving seat 16 and the assembled pipe 7 and the central pipe 12. When working, during the expansion of the tunnel, it is often necessary to open a new tunnel entrance on the tunnel wall or to dig a tunnel detection point. At this time, a large amount of dust will be generated. It is difficult to rely on a single atomizer to control the dust. The atomizing nozzle 9 cannot achieve dust reduction. The traditional method requires the additional use of new dust reduction equipment. Through the setting of the atomizing nozzle 10, when the side wall of a certain part of the tunnel needs to be focused on, first close the mixing hole 8 through the valve assembly, and open the connecting assembly at the same time, so that the water source in the central tube 12 only acts on the atomizing nozzle 10. The diameter of the atomizing nozzle 10 is several times that of the atomizing nozzle 9, and a large amount of dust reduction water mist can be generated. Through the setting of the telescopic hose 17, the telescopic hose 17 can be taken out of the storage seat 16, and the direction of the atomizing nozzle 10 can be changed at will, so that the construction site can be focused on dust reduction without using new dust reduction equipment, thereby improving the practicability of the equipment.

[0037] like Figure 3 to Figure 4 As shown, the valve assembly includes a baffle 18, which slides in the middle of the mixing hole 8. An elastic sealing gasket is fixedly connected to one end of the baffle 18 close to the atomizing nozzle 9. A pulling assembly is arranged on the outer side of the baffle 18, and the pulling assembly is used to drive the baffle 18 to slide left and right on the surface of the mixing hole 8. When working, the baffle 18 is driven to slide by the pulling assembly to seal the mixing hole 8, so that the air in the ventilation pipe 1 cannot flow out of the mixing hole 8. At the same time, the elastic sealing gasket at one end of the baffle 18 close to the atomizing nozzle 9 will deform itself when sliding to the atomizing nozzle 9, thereby blocking the output end of the atomizing nozzle 9, so that neither the airflow nor the water source can be sprayed out, and can only act on the atomizing nozzle 10, thereby ensuring that the atomizing nozzle 10 has sufficient dust-reducing water mist.

[0038] like Figure 3 to Figure 4 As shown, the pulling assembly includes a steel cable 15, which passes through the ventilation pipe 1 and is slidably connected to the inside of the ventilation pipe 1. A linkage block is fixedly connected between the steel cable 15 and the baffle 18. Both ends of the steel cable 15 are fixedly connected to electric cylinders. When working, the steel cable 15 is pulled by the electric cylinders at both ends of the steel cable 15 to move along the direction of the ventilation pipe 1, so that the baffle 18 can be pulled to slide in the middle and upper part of the mixing hole 8. This setting achieves the effect of simultaneously controlling all baffles 18 to slide and open and close, without the need to set up multiple electromagnetic valves for control.

[0039] Embodiment 2

[0040] like Figure 3 to Figure 4 As shown, compared with Example 1, another implementation of the present invention is: the connecting component includes a through pipe 19, the through pipe 19 passes through the central tube 12 and the assembling tube 7 and connects the storage seat 16 with the telescopic hose 17, the through pipe 19 is connected with the central tube 12, and the through pipe 19 is located at one end of the storage seat 16 and is provided with a switch valve, and the control end of the switch valve passes through the top of the storage seat 16 and leaks to the outside. When working, after all the baffles 18 block the mixing hole 8, the through pipe 19 is opened through the switch valve of the storage seat 16 leaking to the outside, so that the through pipe 19 can be connected with the central tube 12, and the internal high-pressure water source is atomized and sprayed out through the atomizing nozzle 10, thereby achieving the effect of fixed-point dust reduction.

[0041] During operation, conventional tunnel ventilation generally uses equipment such as a blower 13 to directly send air from the outside environment directly into the tunnel. However, due to the ongoing mining of the tunnel under construction, a large amount of dust and harmful gases generated by being buried underground for too long are still permeated in the tunnel. Simply sending in air is far from enough. Through the arrangement of the ventilation pipe 1 and the absorption box 3, the outside air is sent into the ventilation pipe 1 through the blower 13, and the input air is discharged into the tunnel through the mixing hole 8. The ventilation pipe 1 and the absorption box 3 are distributed on both sides of the tunnel, and then the negative pressure component in the absorption box 3 is turned on to guide and absorb the airflow ejected from the ventilation pipe 1. The airflow passes through both sides of the entire tunnel and carries the dust and bacteria in the tunnel, which are finally adsorbed by the negative pressure component. After filtering, the airflow ejected from the absorption box 3 is not only rich in oxygen, but also low in dust and pollution, which effectively improves the air quality in the tunnel; water is extracted from the outside by the water pump 2, and the water is sent to the atomizing nozzle 9 through the central tube 12 for spraying. Since the atomizing nozzle 9 is aligned with the mixing hole 8, the sprayed water mist will combine with the airflow and can be smoothly sprinkled to the position of the absorption box 3, and the atomized water droplets can better combine with the particulate matter in the air, effectively improving the effect of purifying the air; the central tube 12 and the ventilation pipe 1 are mutually sleeved to save space, and the water mist sprayed from the central tube 12 can better ride on the sprayed airflow, mix with each other and float farther, and the central tube 12 and the assembling tube 7 can be spliced ​​and extended. The whole equipment can be lengthened according to the construction progress, so as to better adapt to the working environment; the driving motor 6 drives the transmission rod 23 and the suction fan 22 to rotate, so as to generate suction in the absorption hole, suck the outside air into it, and then discharge the sucked air through the air outlet, and by adding a filter layer 28 on the outside of the absorption hole, the filter layer 28 is composed of two layers of non-woven fabric sandwiched by a layer of filter paper rich in disinfectant alcohol, which can filter water droplets and particulate matter in the passing air, and can also perform simple disinfection work, thereby ensuring that the ejected airflow is clean and hygienic. After long-term use, the filter layer 28 will gradually lose its filtering effect, and the reduction motor drives the winding roller 21 to rotate, and continuously rewinds the filter layer 28, thereby continuously updating the filter outside the absorption hole. Layer 28 ensures that the filtering effect is always efficient; the air after entering the absorption box 3 is transported to the direction of the three injection pipes 5 under the rotation of the guide fan 25, and the three inclined injection pipes 5 can diffuse the ejected airflow to a distance, and because of the inclined setting, the ejected airflow will not collide with the airflow ejected from the mixing hole 8, and the problem of uneven dispersion of the filtered air is also reduced; when the suction fan 22 rotates, the transmission rod 23 will drive the main bevel gear 27 to rotate, thereby driving the three meshing driven bevel gears 26 to rotate, and then driving the guide fan 25 to rotate, guiding the air in the absorption box 3 to be ejected in the direction of the injection pipe 5. Through this setting, the three guide fans 25 can be driven to rotate without setting up new power electrical appliances;During tunnel expansion, it is often necessary to open new tunnel entrances or tunnel inspection points on the tunnel wall, which will generate a lot of dust. Dust reduction cannot be achieved by relying on a single atomizing nozzle 9. Traditional methods require the use of new dust reduction equipment. Through the setting of the atomizing nozzle 10, when a certain side wall of the tunnel needs to be focused on, first close the mixing hole 8 through the valve assembly, and open the connecting assembly at the same time, so that the water source in the central pipe 12 only acts on the atomizing nozzle 10. The diameter of the atomizing nozzle 10 is several times that of the atomizing nozzle 9, and a large amount of dust reduction water mist can be generated. Through the setting of the telescopic hose 17, the telescopic hose 17 can be taken out of the storage seat 16, and the direction of the atomizing nozzle 10 can be changed at will, so that the construction site can be focused on dust reduction without the need to use new The dust suppression equipment improves the practicality of the equipment; the baffle 18 is driven to slide by the pulling component to seal the mixing hole 8, so that the air in the ventilation pipe 1 cannot flow out of the mixing hole 8. At the same time, the elastic sealing pad at one end of the baffle 18 close to the atomizing nozzle 9 will deform itself when sliding to the atomizing nozzle 9, thereby blocking the output end of the atomizing nozzle 9, so that the airflow and water source cannot be sprayed out, and can only focus on the atomizing nozzle 10, ensuring that the atomizing nozzle 10 has enough dust suppression water mist; the electric cylinders at both ends of the steel cable 15 pull the steel cable 15 to move along the direction of the ventilation pipe 1, so that the baffle 18 can be pulled to slide in the middle and upper part of the mixing hole 8. This setting achieves the effect of controlling all baffles 18 to slide and open at the same time, without setting multiple electromagnetic valves for control. ;

[0042] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tunnel ventilation device, characterized in that: The invention comprises a ventilation pipe (1) and a plurality of absorption boxes (3), wherein the plurality of absorption boxes (3) are arranged in parallel at equal distances, and an I-shaped steel (4) is fixedly connected between adjacent absorption boxes (3). A negative pressure component is arranged on the inner side of the absorption box (3), and the negative pressure component is used to absorb external air, filter it, and then spray it outward. The ventilation pipe (1) is composed of a plurality of assembled pipes (7) connected end to end, and a mixing hole (8) corresponding to the absorption box (3) is opened on the outer side of the assembled pipe (7); A central tube (12) is fixedly connected to the interior of the ventilation tube (1); the outer diameter of the central tube (12) is smaller than the inner diameter of the ventilation tube (1); the outer side of the central tube (12) is fixedly fitted to the inner wall of the ventilation tube (1) on a side away from the absorption box (3); the end of the central tube (12) close to the blower (13) is connected to a water pump (2); a plurality of atomizing nozzles (9) connected to the interior of the central tube (12) are fixedly connected to the outer side of the central tube (12); the plurality of atomizing nozzles (9) and the plurality of mixing holes (8) are aligned with each other; The outside air is sent into the ventilation pipe (1) through the blower (13), and the input air is discharged into the tunnel through the mixing hole (8). The water source is drawn from the outside through the water pump (2), and the water source is sent to the atomizing nozzle (9) through the central pipe (12) for spraying. The atomizing nozzle (9) and the mixing hole (8) are aligned, and the sprayed water mist will combine with the airflow and float to the position of the absorption box (3). Then, the negative pressure component in the absorption box (3) is turned on to guide and absorb the airflow sprayed from the ventilation pipe (1). The airflow passes through both sides of the entire tunnel and carries dust and bacteria in the tunnel. The dust and bacteria are adsorbed and filtered by the negative pressure component, and then the airflow is sprayed out from the absorption box (3); The absorption box (3) is provided with an absorption hole on a side close to the ventilation pipe (1), and air outlets are provided on the top surface and both sides of the absorption box (3). Two drive motors (6) are fixedly connected inside the absorption box (3), and a transmission rod (23) is fixedly connected to the output end of the drive motor (6), and an air suction fan (22) is fixedly connected to the end of the transmission rod (23). A winding roller 1 (20) is rotatably connected to the top of the side close to the ventilation pipe (1) of the absorption box (3), and a winding roller 2 (21) is rotatably connected to the bottom of the absorption box (3), and a reduction motor is fixedly connected to one end of the winding roller 2 (21), and a filter layer (28) is connected between the winding roller 2 (21) and the winding roller 1 (20).

2. A tunnel ventilation device according to claim 1, characterized in that: The central tube (12) is arranged in sections, the length of each section of the central tube (12) is the same as the length of the assembly tube (7), adjacent central tubes (12) and adjacent assembly tubes (7) are fixedly connected via flanges (11), the blower (13) is fixedly connected to the outer surface of the water pump (2), and the output end of the blower (13) is fixedly connected to a plurality of insertion tubes (14), and the plurality of insertion tubes (14) extend into the gap between the central tube (12) and the ventilation tube (1).

3. A tunnel ventilation device according to claim 1, characterized in that: An injection pipe (5) is fixedly connected to the outer side of the air outlet of the absorption box (3); the injection pipe (5) located at the top of the absorption box (3) is arranged in a bent shape; the injection pipes (5) located at both sides of the absorption box (3) are arranged in an inclined shape; three groups of guide fans (25) are arranged on the inner side of the absorption box (3); the three groups of guide fans (25) face the directions of the three injection pipes (5) respectively; a power assembly is arranged at one end of the guide fan (25); the power assembly is used to drive the guide fan (25) to rotate.

4. A tunnel ventilation device according to claim 3, characterized in that: The power assembly comprises a main bevel gear (27), the main bevel gear (27) being fixedly connected to the middle of a transmission rod (23) located above, three driven bevel gears (26) arranged in a ring are meshed on the outer side of the main bevel gear (27), gaps exist between the three driven bevel gears (26), a rotating rod is fixedly connected to the middle of the driven bevel gear (26), the rotating rod is fixedly connected to the guide fan (25), and three limit seats (24) are fixedly connected to the inner side of the absorption box (3), and the rotating rod is rotatably connected to the limit seats (24).

5. A tunnel ventilation device according to claim 4, characterized in that: A storage seat (16) is fixedly connected to one side of the assembled pipe (7) close to the absorption box (3); one end of the storage seat (16) close to the absorption box (3) is open; a telescopic hose (17) is fixedly connected to the open end of the storage seat (16); an atomizing nozzle (10) is fixedly connected to the end of the telescopic hose (17); a valve assembly is provided on the inner side of the mixing hole (8); the valve assembly is used to close the mixing hole (8) and the atomizing nozzle (9); and a connecting assembly for connecting the storage seat (16) with the assembled pipe (7) and the central pipe (12) is provided.

6. A tunnel ventilation device according to claim 5, characterized in that: The valve assembly comprises a baffle (18), the baffle (18) sliding in the middle of the mixing hole (8), an end of the baffle (18) close to the atomizing nozzle (9) being fixedly connected to an elastic sealing gasket, and a pulling assembly being arranged on the outer side of the baffle (18), the pulling assembly being used to drive the baffle (18) to slide left and right on the surface of the mixing hole (8).

7. A tunnel ventilation device according to claim 6, characterized in that: The pulling assembly comprises a steel cable (15), the steel cable (15) passing through the ventilation pipe (1) and being slidably connected to the inside of the ventilation pipe (1), a linkage block being fixedly connected between the steel cable (15) and the baffle (18), and electric cylinders being fixedly connected to both ends of the steel cable (15).

8. A tunnel ventilation device according to claim 5, characterized in that: The connecting component comprises a through-tube (19), the through-tube (19) passing through the central tube (12) and the assembly tube (7) and connecting the storage seat (16) and the telescopic hose (17), the through-tube (19) being connected to the central tube (12), a switch valve being provided at one end of the through-tube (19) located on the storage seat (16), and a control end of the switch valve passing through the top of the storage seat (16) and leaking out to the outside.

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