Sunshade and smoke exhaust device thereof

Abstract

The utility model relates to the technical field of tunnel engineering, and provides a shading shed and a smoke discharging device thereof, the shading shed comprises a smoke discharging assembly and a supporting assembly, the smoke discharging assembly comprises a smoke discharging fan and a smoke discharging flue, the smoke discharging flue penetrates through the shading shed and is communicated with the internal space of the shading shed, the smoke discharging fan is arranged in the smoke discharging flue, and the supporting assembly is arranged in the supporting assembly. The smoke exhaust fan is used for exhausting smoke in the shading shed to the outside of the shading shed through the smoke exhaust channel, and the supporting assembly is used for supporting the smoke exhaust fan; the smoke blocking device further comprises a fan-shaped smoke blocking plate, the fan-shaped smoke blocking plate is connected with the shading shed in a sealed mode, the fan-shaped smoke blocking plate is arranged on the downstream portion of the discharge flue, the movable smoke blocking assembly is connected with the fan-shaped smoke blocking plate, the movable smoke blocking assembly comprises a roller shutter door, and the unfolding area of the roller shutter door can be adjusted. Part of flue gas in the shading shed can be quickly and effectively exhausted, so that the flue gas or pollutants entering the downstream tunnel are reduced, the safety of the downstream tunnel is improved, the evacuation environment of the downstream tunnel is improved, the number of fans required by the downstream tunnel can be reduced, and the engineering cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel engineering technical field especially a light shade and its smoke exhaust device. BACKGROUND

[0002] Highway tunnel fire safety is a key issue affecting the resilience of transportation. When a fire occurs in a highway tunnel, the fire smoke moves forward along the tunnel under the action of the smoke exhaust fan and gradually subsides, which may hinder the escape of tunnel personnel. To reduce this risk, researchers have explored various smoke control methods, including air curtains, vertical shaft smoke exhaust systems, water curtains, etc.

[0003] As highway tunnels gradually expand into mountainous areas, with gullies crisscrossing the mountains, the number of adjacent tunnel groups adjacent to expressways is increasing. Generally, adjacent tunnels with a spacing of less than 200m are referred to as adjacent tunnels. Numerous studies have shown that there is a significant cross-flow of pollutants between adjacent tunnels. Notably, due to the short connecting section between adjacent tunnels, drivers experience a sharp change in light environment when passing through these sections, leading to a rapid transition in visual light-dark adaptation process, which can easily cause visual impairment, interfere with the perception of driving information, and affect driving safety. To address this issue, a light shade is often installed on the connecting section between adjacent tunnels to improve the light environment at the entrance and exit of the tunnel.

[0004] The presence of the light shade hinders the diffusion of pollutants and fire smoke discharged from the upstream tunnel, causing the pollutants and smoke to enter the downstream tunnel, affecting ventilation and smoke exhaust in the downstream tunnel. Currently, the impact is mainly reduced by increasing the number of downstream tunnel fans, which not only increases engineering costs but also results in poor evacuation environment and safety in the downstream tunnel.

[0005] In view of this, it is necessary to provide a light shade and a smoke exhaust device to solve or at least alleviate the above-mentioned defects. SUMMARY

[0006] The main purpose of the utility model is to provide a light shade and a smoke exhaust device to solve the technical problem of increasing engineering costs and poor evacuation environment in the downstream tunnel caused by increasing the number of downstream tunnel fans to reduce the impact of fire smoke in the prior art.

[0007] To achieve the above-mentioned purpose, the utility model provides a smoke exhaust device suitable for a light shade, comprising a smoke exhaust assembly and a support assembly, wherein the smoke exhaust assembly comprises a smoke exhaust fan and a smoke exhaust duct, the smoke exhaust duct penetrates the light shade and is in communication with the internal space of the light shade, the smoke exhaust fan is arranged in the smoke exhaust duct to exhaust the smoke in the light shade to the outside of the light shade through the smoke exhaust duct, and the support assembly is used to support the smoke exhaust fan.

[0008] Preferably, the smoke exhaust duct comprises a first vertical section, a second vertical section and a horizontal section connected in sequence along the extension direction of the smoke exhaust duct, the cross-sectional area of the first vertical section increases from top to bottom, the first vertical section passes through the sunshade and communicates with the internal space of the sunshade, the smoke exhaust fan is arranged in the second vertical section, and the second vertical section and the horizontal section are L-shaped in space and located outside the sunshade.

[0009] Preferably, the support assembly comprises a vertical support rod, a support inclined rod and a support column, wherein the top of the vertical support rod is fixedly connected with the smoke exhaust fan, the high end of the support inclined rod is connected with the bottom of the vertical support rod, the top of the support column is connected with the low end of the support inclined rod, the bottom of the support column is connected with the road surface, and the support column is arranged between the side boundary of the tunnel building and the sunshade.

[0010] Preferably, the support assembly further comprises a fixed connecting rod, one end of the fixed connecting rod is connected with the low end of the support inclined rod and the top of the support column, and the other end of the fixed connecting rod is connected with the sunshade.

[0011] Preferably, the outlet of the horizontal section is provided with a first insect screen.

[0012] Preferably, the horizontal section is further provided with a drain hole at one end close to the first insect screen, and the outlet of the drain hole is provided with a second insect screen.

[0013] Preferably, the utility model further comprises a fixed smoke blocking assembly and a movable smoke blocking assembly, the fixed smoke blocking assembly comprises a fan-shaped smoke blocking plate matched with the shape of the sunshade, the fan-shaped smoke blocking plate is sealingly connected with the sunshade, the fan-shaped smoke blocking plate is arranged downstream of the smoke exhaust duct, and the fan-shaped smoke blocking plate is located between the top boundary of the tunnel building and the sunshade.

[0014] The movable smoke blocking assembly is connected with the fan-shaped smoke blocking plate, and the movable smoke blocking assembly comprises a roller shutter door, and the opening area of the roller shutter door is adjustably arranged.

[0015] Preferably, the first vertical section is in the shape of a truncated pyramid with the top smaller than the bottom.

[0016] Preferably, the length of the second vertical section and the horizontal section is 2m.

[0017] The utility model also provides a sunshade which comprises a sunshade body and a plurality of smoke exhaust devices as described above, the smoke exhaust devices are arranged at intervals along the extension direction of the sunshade body, the sunshade body is provided with a through hole matched with the smoke exhaust duct of the smoke exhaust device, the smoke exhaust duct penetrates the through hole, and a fire-retardant sealing ring is arranged between the outer wall of the smoke exhaust duct and the through hole.

[0018] Compared with the prior art, the utility model has the beneficial effects as follows:

[0019] The application provides a light-shading shed and a smoke exhaust device thereof, which comprises a smoke exhaust assembly and a supporting assembly, the smoke exhaust assembly comprises a smoke exhaust fan and a smoke exhaust duct, the smoke exhaust duct penetrates through the light-shading shed and is communicated with an internal space of the light-shading shed, the smoke exhaust fan is arranged in the smoke exhaust duct, so as to exhaust the smoke in the light-shading shed to the outside of the light-shading shed through the smoke exhaust duct, and the supporting assembly is used for supporting the smoke exhaust fan; further comprising a fan-shaped smoke baffle, the fan-shaped smoke baffle is sealingly connected with the light-shading shed, the fan-shaped smoke baffle is arranged downstream of the smoke exhaust duct, a movable smoke blocking assembly is connected with the fan-shaped smoke baffle, and the movable smoke blocking assembly comprises a roller shutter door, and the opening area of the roller shutter door can be adjusted. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creative labor.

[0021] Fig. 1 It is the elevation schematic view of the application scene diagram of the overall structure in an embodiment of the utility model.

[0022] Fig. 2 It is the top view of the overall structure in an embodiment of the utility model.

[0023] Fig. 3 It is the side schematic view of the application scene diagram of the overall structure in an embodiment of the utility model.

[0024] The purpose, functional characteristics and advantages of the utility model will be further illustrated by combining with the embodiments and referring to the drawings.

[0025] Explanation of the reference numerals:

[0026] 10, smoke exhaust assembly; 110, smoke exhaust fan; 120, smoke exhaust duct; 121, first vertical section; 122, second vertical section; 123, horizontal section; 124, drain hole; 210, vertical support rod; 220, support inclined rod; 230, support column; 240, fixed connecting rod; 250, middle connecting rod; 260, column stabilizing rod; 310, fixed smoke blocking assembly; 311, fan-shaped smoke blocking plate; 320, movable smoke blocking assembly; 321, roller shutter door; 40, sunshade; 50, upstream tunnel; 60, downstream tunnel. DETAILED DESCRIPTION

[0027] It should be understood that the specific embodiments described herein are merely exemplary and do not limit the present application.

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0029] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as described in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0030] In addition, the description of "first", "second" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features with "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the person skilled in the art, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.

[0031] Please refer to the drawings Figs. 1 to 3The utility model provides an embodiment suitable for the smoke exhaust device of sunshade, including smoke exhaust component 10 and support component (not marked in the drawing), wherein, the smoke exhaust component 10 includes smoke exhaust fan 110 and smoke flue 120, the smoke flue 120 is through sunshade 40 and is connected with the internal space of sunshade 40, the smoke exhaust fan 110 is located in the smoke flue 120, to be exhausted to the outside of sunshade 40 with the smoke flue 120 to the smoke of sunshade 40, the support component is used to support the smoke exhaust fan 110.

[0032] In the application scheme, when the smoke or other pollutants appear in the inside of sunshade 40, start the smoke exhaust fan 110 and work, the smoke exhaust fan 110 inhales the part of smoke in sunshade 40 into the smoke flue 120, and the smoke is exhausted to the outside of sunshade 40 through the smoke flue 120, to reach the purpose of smoke exhaust.Through setting multiple smoke exhaust devices in sunshade 40, the part of smoke in sunshade 40 can be rapidly and effectively exhausted, thereby reducing the smoke or pollutants entering the downstream tunnel 60, improving the safety of downstream tunnel 60, improving the evacuation environment of downstream tunnel 60, and also reducing the number of required fans of downstream tunnel 60, saving engineering cost.

[0033] As a preferred embodiment, the smoke flue 120 includes the first vertical section 121, the second vertical section 122 and the horizontal section 123 connected in turn along the extension direction thereof, the cross-sectional area of the first vertical section 121 increases in turn from top to bottom, the first vertical section 121 passes through sunshade 40 and is connected with the internal space of sunshade 40, the smoke exhaust fan 110 is located in the second vertical section 122, and the second vertical section 122 and the horizontal section 123 are L-shaped in space and are located outside sunshade 40.

[0034] Specifically, the cross-sectional area of the first vertical section 121 increases in turn from top to bottom, which is similar to the principle of Venturi tube, and can accelerate the flow of smoke to some extent, when the smoke enters the first vertical section 121 from the inside of sunshade 40, the flow rate of the smoke will increase due to the gradual decrease of the cross-sectional area, thereby enhancing the smoke exhaust effect to some extent.

[0035] The upper part of the first vertical section 121 of the rhombus table type is connected with the L-shaped smoke flue 120 (i.e., the second vertical section 122 and the horizontal section 123). The wall material of the second vertical section 122 and the horizontal section 123 is preferably 2-3 mm stainless steel material, and the cross-sectional size is 1*1 m. The length of the second vertical section 122 and the horizontal section 123 is 2.5 m, and a 90° bending section is arranged between the two.

[0036] As a preferred embodiment, the support assembly comprises a vertical support rod 210, a support inclined rod 220 and a support column 230, wherein the top of the vertical support rod 210 is fixedly connected with the smoke exhaust fan 110, the high end of the support inclined rod 220 is connected with the bottom of the vertical support rod 210, the top of the support column 230 is connected with the low end of the support inclined rod 220, the bottom of the support column 230 is connected with the ground, and the support column 230 is arranged between the side boundary of the tunnel construction and the light-shielding shed 40.

[0037] Specifically, the vertical support rod 210 is fixedly connected with the smoke exhaust fan 110, thereby ensuring the stable support of the fan in the vertical direction; the high end of the support inclined rod 220 is connected with the bottom of the vertical support rod 210, and the low end is connected with the support column 230, thereby forming an inclined support force; and the support column 230, as the basis of the entire support assembly, transmits the force to the ground, thereby ensuring the stability of the entire structure.

[0038] Preferably, the vertical support rod 210, the support inclined rod 220 and the support column 230 are all high-strength seamless steel pipes, which are connected with each other by welding, thereby effectively ensuring the support strength.

[0039] Preferably, the smoke exhaust fan 110 is a vertical axial flow smoke exhaust fan 110, preferably, the vertical axial flow smoke exhaust fan 110 has an outer diameter of 0.9 m and can realize stepless flow adjustment of 0-35 m 3 / s. The bottom of the smoke exhaust fan 110 is provided with three vertical support rods 210 with a height of 2.5 m, and a damping pad is arranged between the vertical support rod 210 and the smoke exhaust fan 110. Further, the vertical support rod 210 is a high-strength seamless steel pipe.

[0040] Further, the support assembly further comprises a fixed connecting rod 240, one end of the fixed connecting rod 240 is connected with the low end of the support inclined rod 220 and the top of the support column 230, and the other end of the fixed connecting rod 240 is connected with the light-shielding shed 40.

[0041] The fixed connecting rod 240 makes the connection between the support inclined rod 220 and the support column 230 more firm, and also strengthens the connection between the light-shielding shed 40 and the smoke exhaust device. Preferably, the fixed connecting rod 240 is an L-shaped steel plate. The fixed connecting rod 240 and the support column 230 are connected by welding.

[0042] Further, a column stabilizing rod 260 is further included, which is used to reinforce the support column 230. Preferably, the column stabilizing rod 260 is an L-shaped steel plate.

[0043] Further, the support inclined rods 220 and the support columns 230 are oppositely arranged on both sides of the sunshade 40, and the middle connecting rod 250 is arranged between the two support inclined rods 220 to enhance the overall structural strength.

[0044] Preferably, the outlet of the horizontal section 123 is provided with a first insect screen (not shown in the figure). The first insect screen preferably adopts a 20-40 mesh insect screen, and the main function of the first insect screen is to block insects from entering the smoke exhaust duct 120, effectively preventing insects from breeding or causing blockage in the smoke exhaust duct 120, and prolonging the service life of the smoke exhaust fan 110.

[0045] Preferably, the horizontal section 123 is further provided with a water drain hole 124 at one end close to the first insect screen, and the outlet of the water drain hole 124 is provided with a second insect screen (not shown in the figure). In order to prevent rainwater from entering the smoke exhaust duct 120 through the first insect screen, a water drain groove with a width of 5 cm is provided at a distance of 50 cm from the first insect screen, and the bottom of the water drain groove is provided with a second insect screen, preferably a 20-40 mesh insect screen.

[0046] As a preferred embodiment, it further comprises a fixed smoke blocking assembly 310 and a movable smoke blocking assembly 320. The fixed smoke blocking assembly 310 comprises a fan-shaped smoke blocking plate 311 matched with the shape of the sunshade 40, and the fan-shaped smoke blocking plate 311 is sealingly connected with the sunshade 40. The fan-shaped smoke blocking plate 311 is arranged downstream of the smoke exhaust duct 120 and located between the top boundary of the tunnel building and the sunshade 40. The movable smoke blocking assembly 320 is connected with the fan-shaped smoke blocking plate 311, and the movable smoke blocking assembly 320 comprises a roller shutter door 321, and the opening area of the roller shutter door 321 is adjustably arranged.

[0047] Specifically, the fan-shaped smoke blocking plate 311 slows down the diffusion and spread of the smoke gas from the upstream tunnel 50 to the downstream tunnel 60, and at the same time, the fan-shaped smoke blocking plate 311 is arranged downstream of the smoke exhaust duct 120 to gather smoke gas, facilitating smoke exhaust. Preferably, the material of the fan-shaped smoke blocking plate 311 is a fire-resistant and heat-insulating plate with a thickness of 3-5 mm. The lower edge of the fan-shaped smoke blocking plate 311 is provided with a stainless steel horizontal rod for fixing to the sunshade.

[0048] The roller shutter door 321 is arranged in a smoke blocking roller shutter box, and the maximum lower height can reach the road surface. The top of the smoke blocking roller shutter box is fixed to the stainless steel horizontal rod, and is provided with a roller shutter control system. The existing mature device can be used, and the lifting of the fireproof roller shutter can be controlled according to the control;

[0049] When the fan-shaped smoke baffle 311 upstream side has no trapped personnel, the control fire shutter is lowered to the road surface, completely blocking the spread of smoke downstream tunnel 60, improving the downstream tunnel 60 evacuation environment, and extending the available evacuation time of the downstream tunnel 60. When the downstream tunnel 60 personnel have completed the evacuation, the fire shutter door 321 is retracted, and all the fans in the upstream and downstream tunnels 60 are opened until the tunnel environment reaches the normal state, i.e. no fire smoke, no high temperature, and no toxic and harmful gas content reduced to below the safety value.

[0050] Further, the first vertical section 121 is in the shape of a prism with a small upper part and a large lower part. The wall material of the prism-shaped first vertical section 121 is preferably 2-3 mm stainless steel. The lower part of the prism has a cross-sectional dimension of 3*3 m, and the upper part has a cross-sectional dimension of 1*1 m. The lower part of the prism-shaped first vertical section 121 is embedded in the light-shielding shed.

[0051] The utility model also provides a light-shielding shed 40, including light-shielding shed body, still include a plurality of as above-mentioned smoke exhaust device, a plurality of smoke exhaust device interval arrangement along the extension direction of light-shielding shed body, the light-shielding shed body is set up with the smoke exhaust duct 120 of matching of smoke exhaust device through hole (not marked in the drawing), the smoke exhaust duct 120 passes through the through hole and is provided with fire -retardant sealing ring (not shown in the drawing) between the outer wall of smoke exhaust duct 120 and through hole. The number and interval distance of the smoke exhaust device can be set according to actual needs, and the fire-retardant sealing ring plays a sealing and damping role.

[0052] The above is only the preferred embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process conversion using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A smoke extraction device suitable for shading sheds, characterized in that, The device includes a smoke exhaust assembly and a support assembly. The smoke exhaust assembly includes a smoke exhaust fan and a smoke exhaust duct. The smoke exhaust duct passes through the shading canopy and communicates with the internal space of the shading canopy. The smoke exhaust fan is located inside the smoke exhaust duct to exhaust the smoke inside the shading canopy to the outside of the shading canopy through the smoke exhaust duct. The support assembly is used to support the smoke exhaust fan.

2. The smoke extraction device for shading sheds according to claim 1, characterized in that, The exhaust duct includes a first vertical section, a second vertical section, and a horizontal section that are connected sequentially along its extension direction. The cross-sectional area of ​​the first vertical section increases sequentially from top to bottom. The first vertical section passes through the shading canopy and communicates with the internal space of the shading canopy. The exhaust fan is located inside the second vertical section. The second vertical section and the horizontal section are L-shaped in space and are both located outside the shading canopy.

3. The smoke extraction device for shading sheds according to claim 2, characterized in that, The support assembly includes a vertical support rod, a support diagonal rod, and a support column. The top of the vertical support rod is fixedly connected to the smoke exhaust fan. The high end of the support diagonal rod is connected to the bottom of the vertical support rod. The top of the support column is connected to the low end of the support diagonal rod. The bottom of the support column is connected to the road surface. The support column is located between the tunnel construction side clearance and the sunshade canopy.

4. The smoke extraction device for a shading shed according to claim 3, characterized in that, The support assembly also includes a fixed connecting rod, one end of which is connected to the lower end of the support diagonal rod and the top of the support column, and the other end of which is connected to the shading canopy.

5. The smoke extraction device for a shading shed according to claim 2, characterized in that, The outlet of the horizontal section is equipped with a first insect-proof net.

6. The smoke extraction device for a shading shed according to claim 5, characterized in that, The horizontal section is also provided with a drainage hole at one end near the first insect-proof net, and a second insect-proof net is provided at the outlet of the drainage hole.

7. The smoke extraction device for a shading shed according to claim 3, characterized in that, It also includes a fixed smoke barrier assembly and a movable smoke barrier assembly. The fixed smoke barrier assembly includes a fan-shaped smoke barrier that matches the shape of the light-shielding canopy. The fan-shaped smoke barrier is sealed to the light-shielding canopy. The fan-shaped smoke barrier is located downstream of the smoke exhaust duct and is situated between the tunnel structure top clearance and the light-shielding canopy. The movable smoke-blocking component is connected to the fan-shaped smoke-blocking plate. The movable smoke-blocking component includes a roller shutter door, and the unfolding area of ​​the roller shutter door is adjustable.

8. The smoke extraction device for a shading shed according to claim 2, characterized in that, The first vertical segment is shaped like a frustum, smaller at the top and larger at the bottom.

9. The smoke extraction device for a shading shed according to claim 2, characterized in that, The lengths of both the second vertical and horizontal segments are set to 2m.

10. A shade shed, comprising a shade shed body, characterized in that, It also includes a plurality of smoke exhaust devices as described in any one of claims 1-9, wherein the plurality of smoke exhaust devices are arranged at intervals along the extension direction of the shading canopy body, the shading canopy body has through holes that match the smoke exhaust ducts of the smoke exhaust devices, the smoke exhaust ducts pass through the through holes and a flame-retardant sealing ring is provided between the outer wall of the smoke exhaust ducts and the through holes.

Images