Highway tunnel with smoke exhaust channel

Abstract

The utility model relates to the technical field of highway tunnels, in particular to a highway tunnel with a smoke exhaust channel, which comprises a tunnel main body, a base plate, an air inlet mechanism, an air exhaust mechanism, a pair of spraying dust removal mechanisms and a pair of drainage mechanisms, the tunnel body is installed at the top end of the base plate, and the tunnel body and the base plate define a driving channel. The pair of spraying dust removal mechanisms and the pair of drainage mechanisms are arranged on the two sides of the driving channel in a one-to-one correspondence mirror image mode. The air inlet mechanism and the exhaust mechanism are arranged on the two sides of the driving channel in a mirror image mode. An air inlet pipe of the air inlet mechanism and an exhaust pipe of the exhaust mechanism both penetrate through the tunnel body. The gas inlet mechanism can provide low-temperature gas for the driving channel; oxygen can be supplemented, so that trapped people can breathe normally, and the trapped people can escape conveniently and rescue personnel can rescue conveniently; air flow of the air inlet mechanism, air flow of the air exhaust mechanism and the atmosphere form convection, air convection inside and outside the tunnel is achieved, the flowability of air in the driving channel is improved, and then the smoke exhaust efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of highway tunnels, in particular to a highway tunnel with a smoke exhaust passage. Background Art

[0002] A highway tunnel is an underground passage that can effectively alleviate road traffic pressure and shorten driving distance.

[0003] There are entrances and exits at both ends of the highway tunnel for vehicles to pass through. The entrances and exits are also the ventilation holes of the highway tunnel. Due to the overall length of the highway tunnel, the ventilation is poor. In the event of a fire, such as a car accident or spontaneous combustion of the circuit, a large amount of smoke will be generated in the tunnel. Therefore, fans are usually installed in the tunnel to be able to extract the smoke out of the tunnel in time.

[0004] Since the fire will make the smoke temperature higher, there is a risk of burning cables and electrical equipment in the tunnel when the fan directly extracts the smoke, and the smoke directly discharged into the atmosphere will cause environmental pollution. In addition, the air flow in the tunnel is poor, and the long-term burning of the fire point and the exhaust of the fan will make the air in the tunnel thin, resulting in reduced visibility and oxygen content in the tunnel, which is not conducive to the escape of trapped people and is not conducive to rescue workers entering the tunnel for rescue. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a highway tunnel with a smoke exhaust passage, which solves the technical problems of poor air fluidity in the highway tunnel and high smoke temperature during smoke exhaust.

[0007] (II) Technical solution

[0008] In order to achieve the above-mentioned object, the highway tunnel with a smoke exhaust channel of the utility model comprises a tunnel body, a base plate, an air intake mechanism, an exhaust mechanism, a pair of spray dust removal mechanisms and a pair of drainage mechanisms;

[0009] The tunnel body is installed on the top of the base plate, and the two form a driving passage;

[0010] A pair of the spray dust removal mechanisms and a pair of the drainage mechanisms are mirror-imaged and built-in on both sides of the driving passage in a one-to-one correspondence; the air intake mechanism and the exhaust mechanism are mirror-imaged and built-in on both sides of the driving passage;

[0011] An air intake pipe of the air intake mechanism and an exhaust pipe of the exhaust mechanism both penetrate the tunnel body.

[0012] Optionally, the spray dust removal mechanism includes a water tank, a pump, a water pipe and a spray head;

[0013] The water tank is mounted on the base plate;

[0014] One end of the pump is connected to the water tank, and the other end is connected to the water pipe; the free end of the water pipe is closed;

[0015] The nozzle is arranged on the water pipe, and the two are communicated.

[0016] Optionally, the spray dust removal mechanism further includes a snap ring;

[0017] The clamping ring is connected to the inner wall of the tunnel body; the water pipe is clamped between the clamping ring and the inner wall of the tunnel body.

[0018] Optionally, the spray dust removal mechanism further includes a mounting plate;

[0019] The free end of the water pipe, the air intake mechanism and the air exhaust mechanism are all connected to the mounting plate.

[0020] Optionally, the air intake mechanism and the exhaust mechanism both include a connecting pipe and a fan;

[0021] The air inlet pipe or the exhaust pipe is in communication with the connecting pipe;

[0022] The fan is built in the connecting pipe.

[0023] Optionally, the free end of the connecting tube is provided with an expansion opening.

[0024] Optionally, filters are provided in the expansion port, the air inlet pipe and the exhaust pipe.

[0025] Optionally, the drainage mechanism includes a hinged rod, a baffle and a limit plate;

[0026] A drainage channel is provided on the base plate; the hinge rod is provided on one side of the drainage channel;

[0027] The baffle is hinged to the hinged rod so as to be able to open or close the drainage channel;

[0028] The baffle plate is provided with a water seepage hole;

[0029] The limiting plate is arranged at the other side of the drainage channel, and the limiting plate abuts against the baffle.

[0030] Optionally, the free end ports of the air inlet pipe and the exhaust pipe are arranged at an angle.

[0031] Optionally, the highway tunnel further comprises a trapezoidal guide plate;

[0032] The trapezoidal guide plate is arranged at the top end of the base plate and is located between a pair of the drainage mechanisms.

[0033] (III) Beneficial effects

[0034] The beneficial effects of the utility model are:

[0035] The air intake mechanism and the exhaust mechanism are mirrored and built-in on both sides of the driving channel. The smoke and dust in the driving channel are discharged through the exhaust mechanism, and air is supplied to the driving channel through the air intake mechanism. The air intake mechanism can not only provide low-temperature gas to the driving channel to cool down the smoke, but also replenish oxygen to enable the trapped people to breathe normally, facilitating the escape of the trapped people and the rescue of the rescuers; the airflow of the air intake mechanism, the airflow of the exhaust mechanism and the atmosphere form convection, realizing the air convection inside and outside the tunnel, improving the fluidity of the air in the driving channel, and thus improving the smoke exhaust efficiency.

[0036] A pair of spray dust removal mechanisms are mirrored and built-in on both sides of the driving channel. When the smoke and dust are too serious, the spray dust removal mechanisms are turned on to reduce dust inside the tunnel. The water flow can absorb the smoke and dust, causing it to fall naturally, thereby reducing the smoke content in the exhaust gas emitted by the exhaust mechanism and effectively protecting the environment. It can also perform secondary cooling of the smoke and effectively protect circuit facilities such as cables.

[0037] A pair of drainage mechanisms are mirrored and built-in on both sides of the driving channel. The drainage mechanisms collect the water sprayed by the spray dust removal mechanism. The water contains adsorbed smoke and dust to form a precipitation mixture. The drainage mechanisms discharge the precipitation mixture out of the tunnel in a directed manner, which can not only continuously remove the heat in the tunnel through the water flow, but also avoid the water flow from soaking in the bottom of the tunnel for a long time, reducing the difficulty of subsequent cleaning of the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of a highway tunnel with a smoke exhaust channel of the utility model;

[0039] Figure 2 It is a cross-sectional view of a highway tunnel with a smoke exhaust channel of the utility model;

[0040] Figure 3 It is a structural schematic diagram of the air intake mechanism of the utility model;

[0041] Figure 4 It is a structural schematic diagram of the exhaust mechanism of the utility model;

[0042] Figure 5 It is a partial schematic diagram of the drainage mechanism of the utility model.

[0043] [Description of Reference Numerals]

[0044] 1: Tunnel body;

[0045] 2: base plate; 21: drainage channel;

[0046] 3: air intake mechanism; 31: air intake pipe; 32: connecting pipe; 321: expansion port; 33: fan; 34: filter;

[0047] 4: drainage mechanism; 41: hinged rod; 42: baffle; 421: seepage hole; 43: limit plate; 44: anti-fool groove;

[0048] 5: spray dust removal mechanism; 51: water tank; 52: pump; 53: water pipe; 54: nozzle; 55: clamping ring; 56: mounting plate;

[0049] 6: exhaust mechanism; 61: exhaust pipe;

[0050] 7: Driving channel;

[0051] 8: Trapezoidal guide plate. DETAILED DESCRIPTION

[0052] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0053] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0054] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] See also Figure 1 , Figure 2 and Figure 4 The utility model provides a highway tunnel with a smoke exhaust channel, which includes a tunnel body 1, a base plate 2, an air intake mechanism 3, an exhaust mechanism 6, a pair of spray dust removal mechanisms 5 and a pair of drainage mechanisms 4; the tunnel body 1 is installed on the top of the base plate 2, and the two form a driving channel 7; the pair of spray dust removal mechanisms 5 and the pair of drainage mechanisms 4 are mirror-built in both sides of the driving channel 7 in a one-to-one correspondence; the air intake mechanism 3 and the exhaust mechanism 6 are mirror-built in both sides of the driving channel 7; the air intake pipe 31 of the air intake mechanism 3 and the exhaust pipe 61 of the exhaust mechanism 6 both pass through the tunnel body 1.

[0057] The air intake mechanism 3 and the exhaust mechanism 6 are mirror-imaged and built-in on both sides of the driving passage 7. The smoke and dust in the driving passage 7 are discharged through the exhaust mechanism 6, and air is supplied to the driving passage 7 through the air intake mechanism 3. The air intake mechanism 3 can not only provide low-temperature gas to the driving passage 7 to cool down the smoke, but also replenish oxygen to enable the trapped people to breathe normally, facilitating the escape of the trapped people and the rescue of the rescuers; the airflow of the air intake mechanism 3, the airflow of the exhaust mechanism 6 and the atmosphere form convection, realizing the air convection inside and outside the tunnel, improving the fluidity of the air in the driving passage 7, and thus improving the smoke exhaust efficiency.

[0058] A pair of spray dust removal mechanisms 5 are mirror-imaged and built-in on both sides of the driving channel 7. When the smoke and dust are too serious, the spray dust removal mechanism 5 is turned on to reduce dust inside the tunnel. The water flow can not only absorb the smoke and dust, causing the smoke and dust to fall naturally, reducing the smoke and dust content in the exhaust gas of the exhaust mechanism 6, effectively protecting the environment; it can also perform secondary cooling of the smoke, effectively protecting circuit facilities such as cables. Of course, the spray dust removal mechanism 5 can also be used to spray and extinguish fires at the fire point.

[0059] A pair of drainage mechanisms 4 are mirror-built in on both sides of the driving channel 7 in a one-to-one correspondence. The drainage mechanisms 4 collect the water sprayed by the spray dust removal mechanism 5. The water contains adsorbed smoke and dust to form a precipitation mixture. The drainage mechanisms 4 discharge the precipitation mixture out of the tunnel in a direction, which can not only continuously remove the heat in the tunnel through the water flow, but also avoid the water flow from being immersed in the bottom surface of the tunnel for a long time, thereby reducing the difficulty of subsequent cleaning of the tunnel.

[0060] It should be noted that the tunnel body 1 and the base plate 2 are formed by secondary lining construction, and pressure relief holes are drilled on the tunnel body 1 and the base plate 2. Therefore, water flow soaking in the tunnel bottom for a long time is easy to affect the structural strength of the tunnel body 1 and the base plate 2; and there are pre-buried circuit facilities such as cables in the tunnel body 1 and the base plate 2. There is a risk of circuit short circuit due to long-term soaking in water flow, which may cause the circuit to spontaneously combust. Therefore, the utility model is provided with a drainage mechanism 4 used in conjunction with the spray dust removal mechanism 5. The drainage mechanism 4 can timely discharge the accumulated water in the tunnel, and can also effectively solve the problem of accumulated water affecting the structural strength of the tunnel body 1 and the base plate 2 and the problem of circuit short circuit due to water immersion.

[0061] like Figure 2 As shown, the spray dust removal mechanism 5 includes a water tank 51, a pump 52, a water pipe 53 and a nozzle 54; the water tank 51 is installed on the base plate 2; one end of the pump 52 is connected to the water tank 51, and the other end is connected to the water pipe 53; the free end of the water pipe 53 is closed; the nozzle 54 is arranged on the water pipe 53, and the two are connected. Specifically, a water injection port is arranged on the water tank 51, and water is replenished manually at regular intervals. A controller and a smoke sensor are arranged in the highway tunnel. The smoke sensor and the pump 52 are electrically connected to the controller. When the smoke sensor detects a smoke alarm, the controller receives an alarm signal and starts the pump 52. The water in the water tank 51 flows through the pump 52 and the water pipe 53 in turn, and finally sprays out through the nozzle 54 to spray water inside the tunnel to remove dust and cool down. In this embodiment, a pair of spray dust removal mechanisms 5 are arranged in mirror image on both sides of the driving channel 7, and the water sprayed by the pair of nozzles 54 can cover the bottom surface of the tunnel. As for the number of spray dust removal mechanisms 5 provided in the driving direction of the driving passage 7 and the number of nozzles 54 provided on the water pipe 53, they can be set according to demand.

[0062] Furthermore, the spray dust removal mechanism 5 also includes a clamp ring 55; the clamp ring 55 is connected to the inner wall of the tunnel body 1; the water pipe 53 is clamped between the clamp ring 55 and the inner wall of the tunnel body 1. When the water pipe 53 is a hose, the clamp ring 55 can limit the water pipe 53 to ensure the driving space in the tunnel, so that the water pipe 53 is close to the wall of the tunnel body 1 and does not interfere with driving. Optionally, the clamp ring 55 is detachably connected to the wall of the tunnel body 1 through a bolt or a buckle structure.

[0063] Secondly, the spray dust removal mechanism 5 also includes a mounting plate 56; the free end of the water pipe 53, the air intake mechanism 3 and the exhaust mechanism 6 are all connected to the mounting plate 56. The mounting plate 56 fixes the water pipe 53, the air intake mechanism 3 and the exhaust mechanism 6 at the same time, which simplifies the installation method of the water pipe 53, the air intake mechanism 3 and the exhaust mechanism 6. In this embodiment, the smoke sensor is arranged at the bottom end of the mounting plate 56, and the controller is arranged at the top end of the mounting plate 56, which effectively protects the controller.

[0064] See also Figure 3 and Figure 4 , the air intake mechanism 3 and the exhaust mechanism 6 both include a connecting pipe 32 and a fan 33; the air intake pipe 31 or the exhaust pipe 61 is connected to the connecting pipe 32; the fan 33 is built into the connecting pipe 32. Specifically, the connecting pipe 32 is connected to the mounting plate 56 and passes through the mounting plate 56, and the external air can be sucked into the tunnel through the air intake pipe 31 and the connecting pipe 32 in sequence. The fan 33 of the air intake mechanism 3 supplies air to the driving channel 7, and the fan 33 of the exhaust mechanism 6 exhausts air to the driving channel 7. The air intake pipe 31 and the exhaust pipe 61 correspondingly pass through the tunnel body 1 and are connected to the atmosphere, so that the airflow inside and outside the tunnel is convective, which greatly improves the fluidity of the airflow in the tunnel. The fan 33 is built into the connecting pipe 32, which can effectively protect the fan 33 and its circuit.

[0065] Furthermore, the free end of the connecting pipe 32 is provided with an expansion opening 321. The expansion opening 321 can expand the air suction or exhaust range of the connecting pipe 32, improve the coverage of the tunnel, and further improve the working efficiency of the air intake mechanism 3 and the exhaust mechanism 6, saving equipment energy consumption.

[0066] Secondly, the expansion opening 321, the air inlet pipe 31 and the exhaust pipe 61 are all provided with a filter 34. The filter 34 can block the smoke inside the tunnel and the large particles of impurities outside, avoiding the situation where the smoke or large particles of impurities damage the fan 33, thereby extending the service life of the fan 33. The two-layer filtering structure also effectively ensures the emission quality of the smoke, and the large particles of impurities in the smoke are intercepted by the filter 34, reducing the pollution to the environment.

[0067] like Figure 5As shown, the drainage mechanism 4 includes a hinged rod 41, a baffle 42 and a limit plate 43; a drainage channel 21 is provided on the base plate 2; a hinged rod 41 is provided on one side of the drainage channel 21; the baffle 42 is hinged to the hinged rod 41 to be able to open or close the drainage channel 21; a seepage hole 421 is provided on the baffle 42; and the limit plate 43 is provided on the other side of the drainage channel 21, and the limit plate 43 abuts against the baffle 42. The sedimentation mixture has a certain fluidity in the drainage channel 21, but some large particles of impurities will still be deposited at the bottom of the drainage channel 21, which requires subsequent manual cleaning. In this embodiment, the drainage channel 21 is a semicircular channel, which allows the sedimentation mixture to flow with the water flow, and after flowing through the seepage hole 421, it is deposited at the bottom of the drainage channel 21, reducing the cleaning dead corner of the drainage channel 21, and facilitating subsequent manual cleaning. Secondly, an anti-fool groove 44 is provided at one end of the baffle 42 away from the hinged rod 41, which facilitates the opening and closing of the baffle 42 and the drainage channel 21. In actual operation, the operator puts his hand into the anti-mistake groove 44, flips the limit plate 43, and the limit plate 43 rotates around the hinge rod 41 to open the drainage channel 21. The operator cleans the sediment mixture at the bottom of the drainage channel 21, which greatly reduces the cleaning difficulty of the operator and improves the cleaning efficiency. When the baffle 42 is closed, it is supported and limited by the hinge rod 41 and the limit plate 43, and the vehicle can step on the baffle 42 to pass, effectively ensuring the driving space of the driving channel 7.

[0068] See again Figure 2 The free end ports of the air inlet pipe 31 and the exhaust pipe 61 are arranged at an angle. Figure 2 Taking the orientation shown as an example, the upper end size of the free end port of the air intake pipe 31 is larger than the lower end size. When it rains outside the tunnel, it can effectively prevent rainwater from entering the air intake mechanism 3 and affecting the air intake efficiency of the air intake mechanism 3, thereby improving the efficient operation of the air intake mechanism 3 in rainy and snowy environments. The air intake mechanism 3 and the exhaust mechanism 6 can be used alternately by controlling the direction of the fan 33, that is, the air intake mechanism 3 exhausts air and the exhaust mechanism 6 inhales air, so the free end port of the exhaust mechanism 6 is also tilted. Optionally, the air intake pipe 31 and the exhaust pipe 61 are set as L-shaped pipes to further reduce the amount of rainwater entering the pipes.

[0069] Furthermore, the highway tunnel further comprises a trapezoidal guide plate 8; the trapezoidal guide plate 8 is arranged at the top of the base plate 2 and is located between a pair of drainage mechanisms 4. The trapezoidal guide plate 8 has a diversion function, and the water flow will naturally fall onto the trapezoidal guide plate 8 after being adsorbed on the smoke and dust. With the flow of the water flow, the sediment mixture will be guided to the drainage mechanism 4, further reducing the difficulty of subsequent tunnel cleaning and improving the cleaning efficiency.

[0070] It should be understood that the above description of the specific embodiments of the utility model is only for illustrating the technical route and features of the utility model, and its purpose is to enable those skilled in the art to understand the content of the utility model and implement it accordingly, but the utility model is not limited to the above specific implementation methods. All changes or modifications made within the scope of the claims of the utility model should be included in the protection scope of the utility model.

Claims

1. A highway tunnel with a smoke exhaust channel, characterized in that: The highway tunnel comprises a tunnel body (1), a base plate (2), an air intake mechanism (3), an exhaust mechanism (6), a pair of spray dust removal mechanisms (5) and a pair of drainage mechanisms (4); The tunnel body (1) is installed on the top of the base plate (2), and the two form a vehicle passage (7); A pair of the spray dust removal mechanisms (5) and a pair of the drainage mechanisms (4) are mirror-imaged and built-in on both sides of the vehicle passage (7) in a one-to-one correspondence; the air intake mechanism (3) and the exhaust mechanism (6) are mirror-imaged and built-in on both sides of the vehicle passage (7); The air intake pipe (31) of the air intake mechanism (3) and the exhaust pipe (61) of the exhaust mechanism (6) both penetrate the tunnel body (1).

2. The highway tunnel with a smoke exhaust channel according to claim 1, characterized in that: The spray dust removal mechanism (5) comprises a water tank (51), a pump (52), a water pipe (53) and a spray head (54); The water tank (51) is installed on the base plate (2); One end of the pump (52) is in communication with the water tank (51), and the other end is in communication with the water pipe (53); the free end of the water pipe (53) is closed; The nozzle (54) is arranged on the water pipe (53), and the two are in communication.

3. The highway tunnel with a smoke exhaust channel according to claim 2, characterized in that: The spray dust removal mechanism (5) further includes a snap ring (55); The clamping ring (55) is connected to the inner wall of the tunnel body (1); and the water pipe (53) is clamped between the clamping ring (55) and the inner wall of the tunnel body (1).

4. The highway tunnel with a smoke exhaust channel according to claim 3, characterized in that: The spray dust removal mechanism (5) also includes a mounting plate (56); The free end of the water pipe (53), the air intake mechanism (3) and the air exhaust mechanism (6) are all connected to the mounting plate (56).

5. The highway tunnel with a smoke exhaust channel according to any one of claims 1 to 4, characterized in that: The air intake mechanism (3) and the air exhaust mechanism (6) both include a connecting pipe (32) and a fan (33); The air intake pipe (31) or the exhaust pipe (61) is in communication with the connecting pipe (32); The fan (33) is built into the connecting pipe (32).

6. The highway tunnel with a smoke exhaust channel according to claim 5, characterized in that: The free end of the connecting pipe (32) is provided with an expansion opening (321).

7. The highway tunnel with a smoke exhaust channel according to claim 6, characterized in that: The expansion opening (321), the air inlet pipe (31) and the exhaust pipe (61) are all provided with filter screens (34).

8. The highway tunnel with a smoke exhaust channel according to any one of claims 1 to 4, characterized in that: The drainage mechanism (4) comprises a hinged rod (41), a baffle (42) and a limiting plate (43); The base plate (2) is provided with a drainage channel (21); one side of the drainage channel (21) is provided with the hinge rod (41); The baffle (42) is hinged to the hinge rod (41) so as to be able to open or close the drainage channel (21); The baffle plate (42) is provided with a water seepage hole (421); The limiting plate (43) is arranged on the other side of the drainage channel (21), and the limiting plate (43) abuts against the baffle (42).

9. The highway tunnel with a smoke exhaust channel according to any one of claims 1 to 4, characterized in that: The free end ports of the air inlet pipe (31) and the exhaust pipe (61) are arranged at an inclination.

10. The highway tunnel with a smoke exhaust channel according to any one of claims 1 to 4, characterized in that: The highway tunnel further comprises a trapezoidal flow guide plate (8); The trapezoidal guide plate (8) is arranged at the top end of the base plate (2) and is located between a pair of drainage mechanisms (4).

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