Tunnel smoke exhaust device

Abstract

The present invention discloses a tunnel smoke exhaust device, which includes a plurality of groups of smoke exhaust components. Each group of smoke exhaust components is composed of two suction boxes and a smoke exhaust pipe. The suction box is hollow and provided with a suction cavity. One end of the smoke exhaust pipe is a smoke exhaust end for passing through the tunnel and communicating with the exhaust connection air duct. A plurality of suction ports are provided on both side walls of the suction box. A sealing plate for opening and closing the suction port during movement is movably arranged on each suction port. A driving member for driving a single sealing plate to move or a plurality of sealing plates to move synchronously is arranged on the suction box. An air outlet box is arranged at the bottom of the suction box. A plurality of air outlet grooves are opened at the bottom of the air outlet box. An air inlet pipe for passing through the tunnel to communicate the air outlet cavity with the air supply connection air duct is arranged on the air outlet box. A control module for controlling the opening and closing of the driving member is arranged on the suction box. The present invention solves the problems in the prior art that it is difficult for the underground fan room to quickly exhaust smoke, and the smoke gathers under the smoke exhaust device, resulting in a reduction in the smoke suction efficiency of the smoke exhaust device.

Description

Technical Field

[0001] The present invention relates to the technical field of highway tunnel smoke exhaust devices, and specifically relates to a tunnel smoke exhaust device. Background Art

[0002] At present, highway tunnels adopt different ventilation methods according to their lengths and traffic volumes, mainly including natural ventilation and mechanical ventilation. Among them, the mechanical ventilation methods mainly include longitudinal ventilation, semi-transverse ventilation, full-transverse ventilation, and combined ventilation. Among them, natural ventilation realizes the air exchange inside and outside the tunnel through the air flow inside the tunnel formed by meteorological factors and the fresh air brought into the tunnel by motor vehicles from outside the tunnel. Mechanical ventilation realizes the air exchange inside and outside the tunnel by making the air flow along a predetermined route through the action of a fan. According to the tunnel conditions, one or more ventilation methods can be combined to form a more reasonable ventilation method. At present, the ventilation in tunnels in Yunyang, China mainly adopts various longitudinal ventilation methods and various combinations. The expressway tunnels with a length greater than 5000m that have been built in China generally adopt the combined ventilation method of "ventilation shaft supply and exhaust type + jet fan".

[0003] When it is difficult to set up a surface fan room for sectional ventilation of the tunnel using ventilation shafts, an underground fan room can be set up. The underground fan room in the tunnel is divided into a supply connection air duct for transporting the gas outside the tunnel into the tunnel and an exhaust connection air duct for transporting the gas outside the tunnel to the outside of the tunnel. For example, the exhaust connection air duct is connected to the tunnel shaft or the outside of the tunnel through the main exhaust pipeline, and the exhaust connection air duct is connected to the inside of the tunnel through multiple secondary exhaust pipelines to realize the suction and discharge of the air inside the tunnel. The supply connection air duct is also provided with multiple groups of secondary supply pipelines connected to the inside of the tunnel to realize the suction of the air outside the tunnel into the tunnel. For example, a tunnel air supply and smoke exhaust structure disclosed in CN217735541U also realizes the ventilation inside the tunnel through the cooperation of the underground fan room with the exhaust duct and the supply duct. Another example is a connection cross-passage layered plus shaft type extra-long expressway tunnel smoke exhaust duct structure disclosed in CN216477428U, which also realizes the ventilation inside the tunnel through the fan room and the smoke exhaust cross-tunnel, that is, the smoke exhaust cross-tunnel conducts the air inside the tunnel through the fan room to the outside of the tunnel to realize the air interaction inside and outside the tunnel. However, at present, the main problem solved by the fan room is the ventilation inside the tunnel. It is difficult to quickly adsorb the smoke inside the tunnel and quickly evacuate the smoke inside the tunnel when a fire occurs inside the tunnel, resulting in more and more smoke accumulating inside the tunnel, which may lead to casualties. In addition, the existing secondary exhaust pipelines and secondary supply pipelines are usually arranged on both sides of the tunnel inner wall. When a fire occurs and the smoke accumulates on the top wall of the tunnel, it is difficult for the secondary exhaust pipelines on both sides of the tunnel to suck the smoke accumulated on the top wall of the tunnel. Moreover, the distance between two adjacent secondary exhaust pipelines in the tunnel is relatively far. When the ignition point is between two secondary exhaust pipelines, it is difficult for the exhaust connection air duct to suck the smoke generated at the ignition point in the first time, resulting in the rapid diffusion and accumulation of the smoke.

[0004] In view of the above technical problems, a tunnel fire alarm and ventilation and smoke exhaust system disclosed in the prior art CN214499127U has a smoke exhaust duct arranged at the top of the tunnel. The smoke exhaust duct is formed by the sealed connection of the tunnel vault and the air duct plate. A plurality of air inlets are arranged longitudinally along the tunnel on the air duct plate, and the air inlets are perpendicular to the ground, so that the air inlets are equivalent to vertically adsorbing smoke and making it enter the smoke exhaust duct, and then discharged to the outside through a centralized smoke exhaust port communicated with the smoke exhaust duct. A jet fan is installed in the smoke exhaust duct. However, in this technology, a large amount of smoke is likely to accumulate around the air inlets, on both sides of the tunnel top wall or on both sides of the bottom wall of the air duct plate during a fire, and most of the smoke is still not sucked into the smoke exhaust duct by the air inlets, so that most of the smoke gradually sinks, resulting in personnel inhaling a large amount of smoke and being injured or even suffocating and dying. At the same time, the smoke exhaust duct is formed by the cooperation of the air duct plate and the tunnel vault, which occupies a relatively large space in the tunnel, affecting the installation of power supply facilities and fire fighting facilities, and also affecting the installation of escape facilities.

[0005] In view of the technical problems presented by the above-mentioned multiple comparative documents that smoke will gather significantly below the jet fan or diffuse around the tunnel top wall, the prior patent CN215170148U discloses a ventilation device for tunnel construction. A top ventilation device for installing on the tunnel top and adsorbing the air at the tunnel top is designed in this patent. The specific structure includes a housing, a chamber hollowly opened in the housing, and a plurality of ventilation pipes opened on both sides of the housing along the length direction of the housing. Each ventilation pipe is provided with a collection port communicated with the chamber. The poisonous gas at the tunnel top is collected through the collection port and discharged to the outside through the chamber. However, this patent does not explain specifically what structure is adopted to realize the adsorption force of the chamber so that the chamber can collect the air or poisonous gas on the tunnel top wall through a plurality of collection ports, that is, it lacks a specific structure for sucking the air or poisonous gas on the tunnel top wall. Moreover, each collection port in this patent is in an exposed state. If there is a specific structure, the maximum adsorption force generated by this structure will also be sharply reduced due to the plurality of exposed collection ports, that is, it is difficult for the chamber to suck the air around the housing and the air on the tunnel top wall through the adsorption force. Summary of the Invention

[0006] Aiming at the deficiencies of the prior art, the present invention provides a tunnel smoke exhaust device to solve the problems that it is difficult for the underground fan room to quickly suck smoke and the smoke gathers below the smoke exhaust device, resulting in a reduction in the smoke suction efficiency of the smoke exhaust device in the prior art.

[0007] To achieve the above object, the present invention provides a tunnel smoke exhaust device, which includes a plurality of groups of smoke exhaust components for being installed on the top wall of the tunnel. Each group of the smoke exhaust components is composed of two suction boxes arranged on the same horizontal line and a smoke exhaust pipe located between the two suction boxes. The suction box is hollow and provided with a suction cavity. The two suction cavities are both communicated with the smoke exhaust pipe. One end of the smoke exhaust pipe is a smoke exhaust end for passing through the tunnel and being communicated with an exhaust connection air duct. A plurality of suction ports are respectively arranged on both side walls of the suction box along the length direction of the suction box. The plurality of suction ports are all communicated with the suction cavity. A sealing plate for opening and closing the suction port during movement is movably arranged on each suction port. A driving member for driving a single sealing plate to move or a plurality of sealing plates to move synchronously is arranged on the suction box. An air outlet box is arranged at the bottom of the suction box. The air outlet box is hollow and provided with an air outlet cavity. A plurality of air outlet grooves are opened at the bottom of the air outlet box. The plurality of air outlet grooves are all communicated with the air outlet cavity. An air inlet pipe for passing through the tunnel to communicate the air outlet cavity with a supply connection air duct is arranged on the air outlet box. A control module for controlling the opening and closing of the driving member is arranged on the suction box.

[0008] The advantages of adopting the above technical solution are as follows: When there is no fire, the sealing plates will be completely closed. At this time, the underground fan room in the tunnel will operate normally, that is, the air supply connecting duct will transport the external wind force to the inside of the tunnel, and the exhaust connecting duct will discharge the air inside the tunnel to the outside of the tunnel, so as to realize the function of air interaction inside the tunnel; When a fire occurs, the external tunnel fire monitoring system will, according to the fire location, close multiple secondary air supply pipelines of the air supply connecting duct near the fire location, that is, the air supply connecting duct will not fill the tunnel with air through the secondary air supply pipelines. Then the tunnel fire monitoring system quickly transmits information to the control module. The control module receives the information and starts the driving member, so that the driving member drives all the sealing plates to swing. At this time, the suction ports are not covered by the sealing plates, so that each suction port is in a dredged state, and a large amount of smoke can enter the suction cavity from both sides of the suction box. At the same time when the driving member is started, the tunnel fire monitoring system will increase the operating power of the exhaust connecting duct near the fire point, that is, the suction power of the exhaust connecting duct increases. The smoke exhaust pipe is communicated with the exhaust connecting duct through the smoke exhaust end. When the suction power of the exhaust connecting duct increases, the suction force in the smoke exhaust pipe increases greatly. The suction cavity is communicated with the smoke exhaust pipe, so that a high adsorption force is formed in the suction cavity. At this time, a large amount of smoke on both sides of the suction box is affected by the adsorption force of the suction cavity and rushes into the suction cavity in large quantities. A large amount of smoke in the suction cavity is discharged to the tunnel fan room through the smoke exhaust pipe, and then discharged from the tunnel fan room to the outside of the tunnel; In the above technology, the setting of several sealing plates and several suction ports enables a large amount of smoke to rush into the suction cavity from both sides of the suction box, so as to improve the smoking efficiency of the suction box, greatly reduce the smoke concentration in the tunnel, and further reduce the risk of casualties caused by the fire; In the above technology, the activities of a single sealing plate or multiple sealing plates can be controlled according to the position of the fire point, so as to expose a single suction port or multiple suction ports, and then make the adsorption force concentrated to improve the suction intensity of a single suction port or multiple suction ports, and further improve the rapid suction and smoke exhaust efficiency of the smoke generated at the fire point; Most of the existing tunnels are in the shape of an arch bridge, so that when a fire occurs, the smoke at the fire point will rise and accumulate on the top wall of the tunnel. The suction box can be arranged at the center of the top wall of the tunnel and arranged along the length direction of the tunnel, so that a large amount of smoke will be diverted to both sides of the suction box during the rising process, so as to realize the rapid suction of the smoke by the suction box and improve the smoke exhaust efficiency;When it is necessary to discharge a large amount of smoke accumulated at the bottom of the air outlet box to the smoke exhaust pipe through the suction port, the external tunnel fire control system will increase the power of the air supply connecting air duct, so that the air outlet power of the air supply connecting air duct is increased, and multiple secondary air supply pipelines are in a closed state, so that the wind generated in the air supply connecting air duct will flow into the air outlet cavity. A large amount of wind blows into the tunnel through several air outlet slots in the air outlet cavity, so that a large amount of air gushes out of each air outlet slot and blows the smoke on both sides of the air outlet box, so that the smoke on both sides of the air outlet box is lifted towards both sides of the suction box by the gushing of a large amount of air. Through the above technical settings, a large amount of smoke accumulated at the bottom of the air outlet box can be driven by the wind to surge until it rises to both sides of the suction box, avoiding a large amount of smoke from accumulating under the suction box and at the bottom of the air outlet box and being difficult to be discharged. Furthermore, it avoids the accumulation of a large amount of smoke from sinking due to long-term non-discharge, resulting in a large amount of smoke being inhaled by the people at the bottom of the tunnel and causing damage to the human body. At the same time, the smoke exhaust efficiency of the suction box is improved through the settings of the air outlet box and the blower assembly, so that a large amount of smoke can be quickly inhaled by the suction box, thereby avoiding a large amount of smoke from sinking and causing the people at the bottom of the tunnel to inhale a large amount of smoke and get injured; in the above technology, the control module can be an intelligent control device such as a single-chip microcomputer or a control chip, and it can realize the control function of the control module through electrical connection with the driving part. It is an existing technology, so its structure and function will not be described in detail; in the above technology, both the suction box and the smoke exhaust pipe can be installed on the top wall of the tunnel through structures such as brackets, frames, and bolt connections. Its installation method and installation structure are both existing technologies, so its specific installation process and structure will not be described in detail; the tunnel fire monitoring system described in the above technology is an existing technology, that is, a tunnel fire monitoring system will be installed in each tunnel to ensure that firefighters can arrive at the first time to extinguish the fire when a fire occurs in the tunnel. Since it is an existing technology, its specific function and structure will not be described in detail; the tunnel underground fan room described in the above technology is an existing technology, and a large number of fans and several ventilation pipelines are installed inside it for ventilation and gas interaction in the tunnel, that is, the gas inside the tunnel is interacted with the air outside the tunnel through the fans and ventilation pipelines. The tunnel underground fan room described in the above technology is set in the conventional field, that is, an existing technology, so its structure and function will not be described in detail.;

[0009] The present invention is further provided that: on both side walls of the suction box, there are recessed with mating grooves along the length direction of the suction box, the suction port is located on the inner wall at the deepest part of the mating groove, the sealing plate is swingably arranged in a fan shape in the mating groove, the suction box is provided with an operation groove along its length direction, the operation groove is communicated with a perforation corresponding to each sealing plate position, and a number of the perforations are respectively arranged above the top walls of their adjacent mating grooves, the top wall of the sealing plate is provided with a rotating shaft for inserting into the corresponding and adjacent perforations, a small motor is arranged at the position corresponding to each rotating shaft in the operation groove, the output end of each small motor is connected with the corresponding rotating shaft, the small motor is the driving member, a number of the small motors are electrically connected with the control module, and a mating shaft is rotatably connected between the bottom wall of the sealing plate and the bottom wall of the mating groove.

[0010] The advantages of adopting the above technical solution are as follows: when the driving member needs to be started, the control module starts the small motor, so that the output end of the small motor drives the rotating shaft to rotate, thereby driving the fan-shaped swing of the sealing plate, so as to realize the swing of the sealing plate at the opening of the suction port, so that the suction port is no longer closed by the sealing plate. At this time, a large amount of smoke can enter the suction cavity from the suction port, so as to realize the suction of a large amount of smoke in the tunnel, and then improve the suction efficiency and smoke exhaust efficiency of the suction cavity for smoke, so as to reduce the damage to the bodies of the personnel in the tunnel caused by the thick smoke and fog generated by the fire; in the above technology, part of the small motors can also be controlled by the control module to start, so that the start of part of the small motors can drive part of the sealing plates to swing, so as to improve the suction force of part of the exposed suction ports, that is, by sealing the remaining suction ports, the adsorption force in the suction cavity is concentrated, so that the smoke can only be sucked into the suction cavity through the exposed suction ports, thereby improving the rapid suction of the smoke at the fire point position; in the above technology, by controlling all the small motors to start, all the sealing plates swing synchronously, so that all the suction ports can be in a dredged state synchronously, ensuring that a large amount of smoke can enter the suction cavity through the suction ports in the first time, so as to improve the smoke exhaust efficiency; in the above technology, after the smoke is exhausted, the small motor is turned off, and its output end rotates in the reverse direction to drive the sealing plate to swing back to its original position. The swing of the sealing plate makes the sealing plate re-seal the suction port. Several of the sealing plates can be left without swinging back to their original positions, so as to normally exhaust the tunnel when there is no fire in the tunnel.

[0011] The present invention is further provided that: the air outlet box is arranged in a flat shape, and a number of the air outlet grooves are arranged along the length direction of the air outlet box, and a number of the air outlet grooves are arranged in one-to-one correspondence with a number of the suction ports.

[0012] The advantages of adopting the above technical solution are as follows: in the above technology, the air outlet box is arranged in a flat shape so that it does not occupy the tunnel space, and at the same time reduces the air outlet cavity space to increase the air outlet wind pressure and improve the air outlet wind force. And a number of the air outlet grooves are arranged in one-to-one correspondence with a number of the suction ports, so that when each air outlet groove guides the smoke, the smoke can be directly discharged to the periphery of the suction port, thereby improving the smoke exhaust efficiency.

[0013] The present invention is further configured such that: a chute is formed on the inner wall of the air outlet groove, a plug plate is slidably arranged in the chute, a linkage groove is communicated with the bottom wall of the matching groove at each position corresponding to the chute, each matching shaft penetrates into the linkage groove and is provided with a first gear, each first gear meshes with a second gear, each second gear meshes with a third gear, the second gear is located on one side of the first gear, the third gear is located below the second gear, the linkage groove is communicated with the chute, a tooth groove is arranged on the outer wall of the plug plate along the length direction of the plug plate, and the third gear is meshed with a part of the tooth groove.

[0014] The advantages of adopting the above technical solution are as follows: when a single or multiple closing plates need to expose the corresponding suction ports, the swing of the closing plate will drive the rotation of the matching shaft, the rotation of the matching shaft drives the rotation of the first gear, and because the first gear meshes with the second gear, and the second gear is located on one side of the first gear, and at the same time the second gear is not parallel to the first gear, the second gear rotates synchronously with the first gear and drives the rotation of the third gear. The third gear meshes with the tooth groove to push the plug plate and slide it deep into the chute until the air outlet groove is not blocked by the plug plate, so that the air outlet groove is exposed, that is, the air outlet groove corresponding to the suction port to be exposed will be synchronously exposed with the exposure of the suction port, so as to realize the synchronous opening and closing of the suction port and its corresponding air outlet groove. When the remaining air outlet grooves are blocked and closed by the plug plate, a large amount of wind surges into the air outlet cavity through the secondary air supply pipeline and is then output to the outside through the exposed air outlet groove. Through the setting of the above technology, the wind is output in a centralized manner, thereby increasing the wind pressure and the output wind of the exposed air outlet groove, and then blowing the smoke accumulated around the air outlet groove, so as to improve the air guiding efficiency and the blowing efficiency, and further improve the smoke suction efficiency of the suction box, and thus improve the evacuation efficiency of the smoke in the tunnel; in the above technology, when it is necessary to close the suction port, only by rotating the matching shaft in the reverse direction can the closing plate be driven to move into the air outlet groove, thereby closing the air outlet groove.

[0015] The present invention is further configured such that: a guiding protrusion is arranged at the bottom of the air outlet box, the radial cross-section of the guiding protrusion is triangular, and the air outlet groove is arranged on the surface of the guiding protrusion.

[0016] The advantages of adopting the above technical solution are as follows: In the above technology, the guiding protrusion is provided and its radial cross-section is triangular, so that a large amount of smoke is difficult to accumulate on the bottom wall of the air outlet box, thereby avoiding damage to personnel caused by the sinking of smoke due to the accumulation of smoke. At the same time, the air outlet groove is arranged on the surface of the guiding protrusion, so that the air outlet groove is relatively inclined on the air outlet box. The inclined air outlet groove can effectively blow the accumulated smoke. At the same time, when the air outlet groove is inclined, the direction of the emerging wind force is also relatively inclined, that is, the emerging wind force blows into the accumulated smoke in an inclined direction, so that the accumulated smoke can surge and quickly rise and be inhaled by the suction box, thereby improving the smoke exhaust efficiency of the suction box.

[0017] The present invention is further provided with: Smoke sensors for periodically detecting the smoke concentration around the suction box and temperature sensors for real-time monitoring of the temperature around the suction box are arranged at corresponding positions of each air outlet groove on the guiding protrusion, and the smoke sensors and temperature sensors are both communicatively connected to the control module.

[0018] The advantages of adopting the above technical solution are as follows: In the above technology, smoke sensors for periodically detecting the smoke concentration around and below the suction box and temperature sensors for real-time monitoring of the temperature around the suction box are arranged on the guiding protrusion, and they are both communicatively connected to the control module. The arrangement of the smoke sensors and temperature sensors on the guiding protrusion enables them to sense and detect the surroundings and below the suction box in the first time. Thus, when the ignition point is below the suction box, it can quickly respond and generate information data to be transmitted to the control module, so that the control module does not need to receive information transmission from the external tunnel fire emergency system to open and close the control driving member, the fan assembly and the air outlet member. In this way, when the control module senses the ignition point, it can open and close the control driving member, the fan assembly and the air outlet member in the first time, thereby realizing the function of sucking smoke in the first time when on fire, reducing the diffusion range of smoke in the tunnel and improving the smoke exhaust efficiency; In the above technology, the temperature sensors and smoke sensors are both prior arts, so their structures and functions will not be elaborated too much.

[0019] The present invention is further provided with: A blower assembly is arranged in the air outlet cavity, and the blower assembly is connected to the control module.

[0020] The advantages of adopting the above technical solution are as follows: In the above technology, a blower assembly is arranged in the air outlet cavity, which can improve the flow rate of the wind force in the air outlet cavity, that is, accelerate the wind force transmission and improve the air outlet efficiency; In the above technology, the blower assembly is a prior art, so its structure and function will not be elaborated too much

[0021] The present invention is further provided with: A jet fan is arranged in the smoke exhaust pipe, and the jet fan is communicatively connected to the control module.

[0022] The advantages of adopting the above technical solution are as follows: In the above technology, the fan assembly adopts a jet fan, which can provide high-power jet and improve the adsorption force in the suction chamber, so as to ensure that the smoke can be quickly discharged when there is a fire in the tunnel; in the above technology, when the overall length of the suction box is relatively long according to the installation requirements and the tunnel size, multiple small jet fans can be installed in the suction chamber to improve the smoke exhaust efficiency and form the overall adsorption force in the suction chamber, thereby improving the smoke exhaust efficiency; in the above technology, the jet fan is a prior art, so its structure and function will not be described in detail.

[0023] The present invention is further provided with: a water channel for precipitating large particle impurities in the external smoke and dust is arranged on the bottom wall of the suction chamber along the length direction of the suction box.

[0024] The advantages of adopting the above technical solution are as follows: The setting of the water channel in the above technology is used for precipitating large particle impurities in the smoke and dust when a large amount of smoke is discharged. At the same time, when the smoke comes into contact with the water in the water channel, the smoke will be driven by the water, so that the large particle impurities in the smoke invade the water, thereby avoiding a very small amount of smoke from flowing back out of the suction box and a very small amount of large particle impurities in the smoke from flowing back out of the suction box.

[0025] The present invention is further provided with: a water suction pipe for installing on the top wall of the external tunnel and communicating with the water tank in the external tunnel is arranged on the suction box. A number of atomizing nozzles are arranged on the top wall of the suction chamber along the length direction of the suction box. The number of atomizing nozzles is arranged in communication with the water suction pipe. An electromagnetic valve assembly for communicating with the control module is arranged on the water suction pipe.

[0026] The advantages of adopting the above technical solution are as follows: The setting of the atomizing nozzles in the above technology is used to spray water mist to fuse with part of the thick fog. A large amount of smoke sinks and invades the water channel, thereby avoiding the smoke from overflowing outside the suction box, so as to improve the smoke exhaust efficiency; the setting of the electromagnetic valve assembly in the above technology is used to block and dredge the water suction pipe. When water mist dust suppression treatment is required, the control module starts the electromagnetic valve assembly to dredge the water suction pipe, so that the water in the water suction pipe can enter the atomizing nozzles at high speed, be sprayed out by the atomizing nozzles and form water mist; the electromagnetic valve assembly in the above technology is a prior art, so its structure and function will not be described in detail. Brief Description of the Drawings

[0027] Figure 1 It is a simple three-dimensional view of the present invention installed in a tunnel and connected to a tunnel fan room;

[0028] Figure 2 is Figure 1 A simple three-dimensional view after removing the tunnel;

[0029] Figure 3 It is a three-dimensional view of a single smoke exhaust component in the present invention;

[0030] Figure 4 For Figure 3 Three-dimensional view from the bottom perspective;

[0031] Figure 5 For Figure 4 Front view of;

[0032] Figure 6 For Figure 4 Cross-sectional view of;

[0033] Figure 7 For Figure 6 Partial enlarged view of part A in;

[0034] Figure 8 Simplified schematic diagram of the smoke exhaust state in the present invention, where a is the path direction of the smoke from the ignition point entering the suction chamber, b is the path direction of the wind output from the air outlet chamber blowing the smoke at the ignition point, and c is the ignition point;

[0035] Figure 9 Simplified schematic diagram of the path direction of the smoke from the simulated ignition point entering;

[0036] Figure 10 Three-dimensional view of the combined state of the plug plate and the sealing plate in the present invention; Detailed implementation mode

[0037] The tunnel smoke exhaust device comprises a plurality of groups of smoke exhaust components for installation on the top wall of the tunnel, each group of the smoke exhaust components is composed of two suction boxes 1 in the same horizontal line and a smoke exhaust pipe 2 between the two suction boxes 1, the suction box 1 is hollow with a suction chamber 11, the two suction chambers 11 are connected with the smoke exhaust pipe 2, one end of the smoke exhaust pipe 2 is a smoke exhaust end 21 for passing through the tunnel and connected with the exhaust air duct, a plurality of suction ports 12 are provided on the upper and lower side walls of the suction box 1 along the length direction of the suction box 1, a plurality of the suction ports 12 are connected with the suction chamber 11, each of the suction ports 12 is movably provided with a sealing plate 3 for opening and closing the suction port 12 when moving, and the suction box 1 is provided with a sealing plate 3 for driving a single sealing plate 3 to move or a plurality of sealing plates 3 to move. The plate 3 is a driving member that moves synchronously, and an air outlet box 4 is arranged at the bottom of the suction box 1. The air outlet box 4 is hollow and has an air outlet cavity 41. A plurality of air outlet slots 42 are arranged at the bottom of the air outlet box 4, and the plurality of air outlet slots 42 are connected with the air outlet cavity 41. The air outlet box 4 is provided with an air inlet pipe 43 for passing through a tunnel to connect the air outlet cavity 41 with the air supply connecting duct. The suction box 1 is provided with a control module for controlling the opening and closing of the driving member, and matching grooves 13 are arranged on both side walls of the suction box 1 along the length direction of the suction box 1. The suction port 12 is located on the deepest inner wall of the matching groove 13, and the sealing plate 3 is arranged in the matching groove 13 in a fan-shaped swinging manner. The suction box 1 is provided with an operating groove 14 along its length direction, and the operating groove 14 corresponds to each Each position of the sealing plate 3 is connected with a through hole 141, and several of the through holes 141 are respectively arranged above the top walls of the respective adjacent matching grooves 13. The top wall of the sealing plate 3 is provided with a rotating shaft 31 for inserting the corresponding and adjacent through holes 141. A small motor 143 is provided at the position corresponding to each rotating shaft 31 in the operating groove 14, and each output end of the small motor 143 is connected to the corresponding rotating shaft 31. The small motor 143 is a driving member, and several of the small motors 143 are electrically connected to the control module. A matching shaft 32 is rotatably connected between the bottom wall of the sealing plate 3 and the bottom wall of the matching groove 13. The air outlet box 4 is arranged in a flat shape, and several of the air outlet slots 42 are arranged along the length direction of the air outlet box 4. The suction port 12 is arranged in a one-to-one correspondence, a slide groove 421 is provided on the inner wall of the air outlet slot 42, a plug plate 422 is slidably arranged in the slide groove 421, a linkage groove 131 is connected to the bottom wall of the matching slot 13 corresponding to each slide groove 421, each matching shaft 32 is inserted into the linkage groove 131 and a first gear 321 is arranged, each first gear 321 is meshed with a second gear 322, each second gear 322 is meshed with a third gear 323, the second gear 322 is located on one side of the first gear 321, and the third gear 323 is located below the second gear 322, the linkage groove 131 is connected to the slide groove 421, and a tooth groove 44 is arranged on the outer wall of the plug plate 422 along the length direction of the plug plate 422.The third gear 323 is partially engaged with the tooth groove 44. A guiding protrusion 45 is provided at the bottom of the air outlet box 4. The radial cross-section of the guiding protrusion 45 is triangular. The air outlet groove 42 is arranged on the surface of the guiding protrusion 45. Smoke sensors for periodically detecting the smoke concentration around the suction box 1 and temperature sensors for real-time monitoring of the temperature around the suction box 1 are provided at positions corresponding to each air outlet groove 42 on the guiding protrusion 45. Both the smoke sensors and the temperature sensors are communicatively connected to the control module. A blower assembly 5 is arranged in the air outlet cavity 41. The blower assembly 5 is connected to the control module. A jet fan 51 is arranged in the smoke exhaust pipe 2. The jet fan 51 is communicatively connected to the control module. A water channel 6 for sedimentation of large particle impurities in the external soot is formed along the length direction of the suction box 1 on the bottom wall of the suction cavity 11. A water suction pipe 61 for installation on the top wall of the external tunnel and communicating with the water tank in the external tunnel is provided on the suction box 1. A plurality of atomizing nozzles 62 are arranged along the length direction of the suction box 1 on the top wall of the suction cavity 11. The plurality of atomizing nozzles 62 are all communicated with the water suction pipe 61. An electromagnetic valve assembly 63 for communicatively connecting with the control module is provided on the water suction pipe 61.,

[0038] Specific Embodiment 1: In case of a fire, the external tunnel fire monitoring system will quickly transmit information to the control module. The control module receives the information, determines the position of the ignition point, and starts some or all of the small motors 143 around the corresponding ignition point position, so that the single or multiple or all small motors 143 start to drive the corresponding sealing plates 3 to swing. At this time, the suction ports are not covered by the sealing plates 3, so that each suction port 12 is in a dredged state, and a large amount of smoke can enter the suction cavity 11 from both sides of the suction box 1. At the same time as the small motors 143 start, the control module will start the jet fan 51, so that the jet fan 51 creates a high adsorption force in the suction cavity 11. At this time, a large amount of smoke on both sides of the suction box 1 is affected by the adsorption force of the suction cavity 11 and floods into the suction cavity 11 in large quantities. A large amount of smoke in the suction cavity 11 is discharged into the tunnel fan room through the smoke exhaust pipe 21 and then discharged out of the tunnel by the tunnel fan room.,

[0039] Specific Embodiment 2: In case of a fire, the external tunnel fire monitoring system will quickly transmit information to the control module. The control module receives the information, determines the location of the ignition point, and activates some or all of the small motors 143 around the corresponding ignition point. This causes the single or multiple or all small motors 143 to start and drive the corresponding sealing plates 3 to swing. At this time, the suction ports are not covered by the sealing plates 3, so that each suction port is in a dredged state, allowing a large amount of smoke to enter the suction chamber 11 from both sides of the suction box 1. At the same time as the small motors 143 are started, the control module activates the jet fan 51, causing the jet fan 51 to create a high adsorption force in the suction chamber 11. Under the influence of the adsorption force of the suction chamber 11, a large amount of smoke on both sides of the suction box 1 rushes into the suction chamber 11. The large amount of smoke in the suction chamber 11 is discharged into the tunnel fan room through the exhaust pipe 21 and then discharged outside the tunnel by the tunnel fan room. When a single or multiple sealing plates 3 need to expose the corresponding suction ports 12, the swing of the sealing plate 3 will drive the cooperation shaft 32 to rotate. The rotation of the cooperation shaft 32 drives the first gear 321 to rotate. Since the first gear 321 meshes with the second gear 322, and the second gear 322 is located on one side of the first gear 321 and is not parallel to the first gear 321, the second gear 322 rotates synchronously with the first gear 321 and drives the third gear 323 to rotate. The third gear 323 meshes with the tooth groove 44, causing the plug plate 422 to be pushed by the third gear 323 and slide deep into the chute 45 until the air outlet groove 42 is no longer blocked by the plug plate 422, exposing the air outlet groove 42. That is, the air outlet groove 42 corresponding to the lower part of the suction port 12 to be exposed will be exposed synchronously with the exposure of the suction port 12, thus realizing the synchronous opening and closing of the suction port 12 and its corresponding air outlet groove 42. When the other air outlet grooves 42 are blocked and closed by the plug plate 422, a large amount of wind output from the tunnel air supply connecting air duct will rush into the air outlet chamber 41 through the air inlet pipe 43 with the assistance of the blower assembly 5 and then be output to the outside through the exposed air outlet groove 42.

[0040] Specific Embodiment 3: In case of a fire, the external tunnel fire monitoring system will quickly transmit information to the control module. The control module receives the information, determines the location of the ignition point, and activates some or all of the small motors 143 around the corresponding ignition point. This causes the single or multiple or all small motors 143 to start and drive the corresponding sealing plates 3 to swing. At this time, the suction ports 12 are not covered by the sealing plates 3, so that each suction port is in a dredged state, allowing a large amount of smoke to enter the suction cavity 11 from both sides of the suction box 1. At the same time as the small motors 143 are started, the control module activates the jet fan 51, causing the jet fan 51 to create a high suction force in the suction cavity 11. Under the influence of the suction force of the suction cavity 11, a large amount of smoke on both sides of the suction box 1 rushes into the suction cavity 11. The large amount of smoke in the suction cavity 11 is discharged into the tunnel fan room through the exhaust pipe 21 and then discharged outside the tunnel by the tunnel fan room. At the same time, the control module controls the solenoid valve assembly 63 to start, so that the water suction pipe 61 is dredged, and a large amount of water is sprayed out through the atomizing nozzle 62 to form a water mist, thereby achieving the purpose of dust reduction.

[0041] In the above technology, the tunnel is labeled as 7 in the specification drawings, the underground air supply connection duct of the tunnel is labeled as 71 in the specification drawings, and the underground exhaust connection duct of the tunnel is labeled as 72 in the specification drawings.

[0042] In the above technology, the specification drawings Figure 1 The three-dimensional view showing the connection state of the present technology with the tunnel and the tunnel fan room is presented. The dividing line is used to separate and display the simple state of the application state of the present invention. At the same time, in the present technology, the first and last of each smoke exhaust component are adjacent, that is, the outer ends of the two suction boxes in each smoke exhaust component are connected to or adjacent to the outer ends of the suction boxes of the adjacent smoke exhaust component, so as to ensure that a number of suction boxes are combined to form a covering installation for the tunnel, thereby improving the pumping and exhaust efficiency and covering efficiency of the tunnel interior.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A tunnel smoke exhaust device, comprising a plurality of groups of smoke exhaust components for installation on the top wall of the tunnel. Each group of the smoke exhaust components is composed of two suction boxes on the same horizontal line and a smoke exhaust pipe located between the two suction boxes. The suction box is hollow and provided with a suction cavity. The two suction cavities are both communicated with the smoke exhaust pipe. One end of the smoke exhaust pipe is a smoke exhaust end for passing through the tunnel and communicating with the exhaust connection air duct. A plurality of suction ports are arranged on both side walls of the suction box along the length direction of the suction box. The plurality of suction ports are all communicated with the suction cavity. It is characterized in that: A sealing plate for opening and closing the suction port when moving is movably provided on each of the suction ports, a driving member for driving a single sealing plate to move or a plurality of sealing plates to move synchronously is provided on the suction box, an air outlet box is provided at the bottom of the suction box, an air outlet cavity is hollowly provided in the air outlet box, a plurality of air outlet slots are provided at the bottom of the air outlet box, and the plurality of air outlet slots are connected to the air outlet cavity, an air inlet pipe for passing through a tunnel to connect the air outlet cavity with an air supply connecting duct is provided on the air outlet box, a control module for controlling the opening and closing of the driving member is provided on the suction box, matching grooves are provided on both side walls of the suction box along the length direction of the suction box, and the bottom wall of the sealing plate is rotatably connected to the bottom wall of the matching groove There is a matching shaft, a slide groove is opened on the inner wall of the air outlet slot, a plug plate is slidably arranged in the slide groove, a linkage groove is connected to each slide groove position on the bottom wall of the matching groove, each of the matching shafts is inserted into the linkage groove and a first gear is arranged, each of the first gears is meshed with a second gear, each of the second gears is meshed with a third gear, the second gear is located on one side of the first gear, and the third gear is located below the second gear, the linkage groove is connected to the slide groove, tooth grooves are arranged on the outer wall of the plug plate along the length direction of the plug plate, the third gear is partially meshed with the tooth grooves, a jet fan is arranged in the smoke exhaust pipe, and the jet fan is communicatively connected to the control module.

2. The tunnel smoke exhaust device according to claim 1, wherein: The suction port is located on the deepest inner wall of the matching groove, the sealing plate is set in the matching groove in a fan-shaped swinging manner, and the suction box is provided with an operating groove along its length direction. The operating groove is connected with a through hole corresponding to each sealing plate position, and several of the through holes are respectively arranged above the top walls of the respective adjacent matching grooves. The top wall of the sealing plate is provided with a rotating shaft for inserting the corresponding and adjacent through holes, and a small motor is provided corresponding to each rotating shaft position in the operating groove, and each output end of the small motor is connected to the corresponding rotating shaft, the small motor is a driving member, and several of the small motors are electrically connected to the control module.

3. The tunnel smoke exhaust device according to claim 2, characterized in that: The air outlet box is arranged in a flat shape, and the plurality of air outlet slots are arranged along the length direction of the air outlet box, and the plurality of air outlet slots are arranged in one-to-one correspondence with the positions of the plurality of suction ports.

4. A tunnel smoke exhaust device according to claim 3, characterized in that: A guide protrusion is arranged at the bottom of the air outlet box, the radial cross section of the guide protrusion is arranged in a triangular shape, and the air outlet slot is arranged on the surface of the guide protrusion.

5. The tunnel smoke exhaust device according to claim 4, characterized in that: A smoke sensor for periodically detecting the smoke concentration around the suction box and a temperature sensor for real-time monitoring the temperature around the suction box are provided on the guide protrusion corresponding to each air outlet slot position. The smoke sensor and the temperature sensor are both connected to the control module for communication.

6. The tunnel smoke exhaust device according to claim 1, characterized in that: A blower assembly is arranged in the air outlet cavity, and the blower assembly is connected to the control module.

7. A tunnel smoke exhaust device according to claim 1, characterized in that: A water channel for settling large particles of impurities in external smoke and dust is provided on the bottom wall of the suction chamber along the length direction of the suction box.

8. The tunnel smoke exhaust device according to claim 7, characterized in that: A water suction pipe for installation on the top wall of an external tunnel and communicating with a water tank in the external tunnel is provided on the suction box. A plurality of atomizing nozzles are arranged along the length direction of the suction box on the top wall of the suction cavity. The plurality of atomizing nozzles are all arranged in communication with the water suction pipe, and a solenoid valve assembly for communication connection with the control module is provided on the water suction pipe.

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