JP2013152044A - Corner vane for tunnel ventilation facility and method of installing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability of a corner vane that tunnel ventilation facilities for automobile include.SOLUTION: A corner vane 1 for tunnel ventilation facilities includes: a plurality of support plates 10 which extend upward and downward; a plurality of first vanes 20 formed arcuately so as to straighten a flow; a plurality of second vanes 28 formed arcuately as well in substantially the same shape as the first vanes; a first support 30 fitted to an upper end part of the support plate and locked to a concrete wall forming a passage; and a second support 40 fitted to a lower end part of the support plate and locked to a concrete floor surface forming the passage. A hole 20a that the support plate penetrates is formed in a widthwise center part of the first vane, and the second vane is arranged between the first vanes which are adjacent in a width direction and fastened with a bolt. The first and second supports couple and support the support plate rotatably with a pin 48.

Description

  The present invention relates to a corner vane for tunnel ventilation equipment and an installation method thereof, and more particularly to a corner vane for tunnel ventilation equipment suitable for ventilating an automobile tunnel and an installation method thereof.

  In an automobile tunnel, a fan for blowing air and a supply / exhaust passage are provided for exhausting exhaust gas generated from an automobile traveling in the tunnel from the inside of the tunnel and supplying fresh air instead of the exhausted gas. . In the exhaust passage formed vertically, the horizontal position is changed to the fan position in order to prevent rainwater from dripping and directly hitting the fan arranged on the vertical axis, and the exhaust passage has a bent corner. It is formed. Also in the intake passage, there is a case where a corner is formed because air needs to be guided to a limited space called a tunnel. Although not all of these corners, corner vanes that can reduce the flow resistance may be provided in a portion where the fluid resistance is large in order to reduce the power of the fan.

  Conventional examples in which corner vanes are provided in the air supply / exhaust passage are described in Patent Documents 1 to 3. In the example of the tunnel ventilator described in Patent Document 1, in order to effectively arrange the equipment by effectively using the narrow space of the tunnel ventilator and obtain an air purification device with a high NOx removal rate, A suction port is provided on the ceiling surface, and exhaust gas sucked from the suction port is led to an exhaust fan arranged on the horizontal axis. At this time, since the flow direction of the exhaust gas changes by 90 degrees, an inlet corner vane is disposed in the vicinity of the suction port, and an ozone injection nozzle is provided in the inlet corner vane.

  Moreover, in patent document 2, in order to evaluate the construction error at the time of attaching a rectifying plate such as a corner vane to the tunnel, the tunnel measurement data and the position of the rectifying plate at the position where the ventilation rectifying plate provided on the ceiling of the tunnel is attached are described. From the initial information, a tunnel shape model is created, and a current plate model is arranged in the tunnel shape model. Thereby, the initial information of the mounting information of the current plate is corrected.

  Further, in Patent Document 3, a rectifier with a silencing function is provided at a bent portion of a road ventilation passage in order to ensure a smooth rectification action in the ventilation passage of a road tunnel and to mute the sound. Specifically, the bent portion of the ventilation passage is divided into a plurality of parallel flow paths having the same flow area, and a rectifying unit with a silencing function is fitted into the divided portion. Thereby, the noise reduction and the load reduction of the ventilation fan are also achieved.

JP 2008-307468 A JP 2005-273245 A JP 2006-336281 A

  By the way, the air supply / exhaust passage of the road tunnel is made of a concrete structure with a duct that serves as a flow path on the intake side from the air inlet to the exhaust fan (fan) and on the exhaust side from the exhaust fan to the exhaust tower. The As described above, since the flow direction changes suddenly at the corner of the duct, the pressure loss is large, affecting the motor capacity of the exhaust fan, and causing noise and vibration due to the turbulence of the airflow. In order to reduce the pressure loss at the corner, a corner vane made of steel plate is installed to rectify the flow. However, corner vanes are installed in tunnels or tunnel ancillary facilities, so it is difficult to maintain the dimensional accuracy of general machinery products when the installation location is narrow and the foundation is concrete. . As a result, since the dimensional accuracy of the foundation varies, the bolt fastening operation of the finely divided members that can be easily matched on site is performed.

  When corner vanes are made with a bolt fastening structure, 1) they are easily affected by errors in the basic finish dimensions of the installation location and changes over time due to the concrete structure, for example, uneven settlement of the ground. When a fire due to an unexpected situation such as an accident occurs, thermal expansion occurs due to flue gas, but since the bolts are firmly fastened to each other, stress relief cannot be secured and the corner vanes are deformed. 3) Bolt fastening The structure requires a large number of bolts, and bolt heads and nuts protrude into the flow path, causing pressure loss and easily inducing wind noise.

  Moreover, in the said patent document 1 and patent document 3, although considering using a corner vane for the purification | cleaning and rectification | straightening of air, respectively, the workability of a corner vane is not considered. Furthermore, although Patent Document 2 considers the attachment evaluation of a current plate such as a corner vane, the consideration on how to improve workability is still insufficient.

  This invention is made | formed in view of the malfunction of the said prior art, and aims at improving the construction property of the corner vane with which a tunnel ventilation equipment is provided. Another object of the present invention is to realize an easy-to-construct ventilation facility that can reduce pressure loss and reduce noise in a corner vane disposed in a concrete duct through which exhaust gas and intake gas flow.

  A feature of the present invention that achieves the above object is that, in a corner vane for tunnel ventilation equipment provided in a passage for supplying air to or exhausting from an automobile tunnel, a plurality of support plates extending in the vertical direction, and a flow A plurality of first vanes formed by bending in an arc shape to rectify, a plurality of second vanes formed in substantially the same arc shape as the first vanes, and attached to the upper end of the support plate A first support that is locked to a concrete wall or ceiling surface that forms a passage, and a second support that is attached to a lower end portion of the support plate and locks to a concrete floor surface that forms a passage. A hole through which the support plate penetrates is formed in an intermediate portion in the width direction of one vane, the second vane is disposed between the first vanes adjacent in the width direction, and bolts are fastened. 1st, 2nd Bearing lies in that the supporting plate is supported by rotatably pin-connected.

  And in this feature, the support plate is formed in a plurality of divided structures having a size capable of public road transportation in the vertical direction, and each of the divided type support plates is bolted using a splice plate, The vane and the support plate may be integrated by welding in a hole formed in the first vane, and a hole through which an anchor bolt that fastens the second support to the concrete floor surface passes through the second vane. The anchor bolt hole is preferably a long hole with a long length in a direction perpendicular to the width direction. Further, the upper end and the lower end of the support plate are formed in a tapered shape, a through hole through which a pin passes is formed in the tapered shape portion, and the support plate rotates around the through hole portion. It is desirable that it be formed.

  Another feature of the present invention that achieves the above object is to provide a corner vane for tunnel ventilation equipment provided in a passage for supplying air to or exhausting from an automobile tunnel, or a corner portion of the tunnel or the vicinity thereof. A support plate is welded to the first vane after the support plate is passed through a plurality of first vanes formed by bending a flat plate having a hole formed in the intermediate portion in the width direction on the floor surface, In addition, first and second supports are attached to the upper end portion side and the lower end portion side of the support plate via pins, and the first vane has substantially the same bent shape between the first vanes adjacent in the width direction. The corner vane is completed by fixing the second vane with a bolt connection, the upper end portion of the completed corner vane for tunnel ventilation equipment is lifted using lifting means, and the first support provided on the upper end portion is pinned. Rotate around the corner of the tunnel and fix it with anchor bolts, and then rotate the second bearing on the lower end around the pin to contact the concrete floor Then, it is to fix to a concrete floor surface with an anchor bolt using the long hole provided in this 2nd support.

  According to the present invention, the upper and lower ends of the corner vanes arranged in the air supply / exhaust passage of the road tunnel have a pin support shape that can be rotated, and the support portion of the lower end portion has a long hole shape so that the foundation concrete portion Since construction errors can be absorbed, even if stress is generated in the corner vanes in the event of a concrete duct secular change or in the event of a fire, it has a relief structure and can release the stress. Therefore, the workability of the corner vane provided in the tunnel ventilation facility is improved. Further, the pressure loss in the corner vanes arranged in the concrete duct through which the exhaust gas and the intake gas flow is reduced, and noise can be reduced. At the same time, ventilation equipment that is easy to construct can be realized.

It is sectional drawing of one Example of the tunnel ventilation equipment which concerns on this invention. It is a figure which shows the construction state of the corner vane with which the tunnel ventilation equipment shown in FIG. 1 is provided. It is a perspective view of the corner vane shown in FIG. It is a disassembled perspective view of the corner vane shown in FIG. It is a figure which shows the detail of the corner vane shown in FIG. It is a figure which shows the detail of the corner vane shown in FIG. It is a flowchart which shows the installation procedure of the corner vane which concerns on this invention.

  An embodiment of a tunnel ventilation facility according to the present invention will be described with reference to the drawings. FIG. 1 is a cross-sectional view of an embodiment of an underground tunnel 100 in which a tunnel ventilation facility 90 is constructed, and the tunnel ventilation facility 90 has an exhaust passage 52. The same applies to the air supply passage. In the tunnel 100, a vehicle lane 71 through which a vehicle passes, a vehicle lane 72, and a railroad lane 73 through which a rail vehicle disposed between the upstream lane 71 and the downstream lane 72 passes are formed by a tunnel outer wall 83. Yes.

  In a region having a substantially rectangular cross section surrounded by the concrete outer wall 83, a partition wall 70 for forming a ventilation duct 78 is provided above the automobile up lane 71 and the automobile oil down lane 72. An opening 70a is formed at a predetermined interval in an intermediate portion of the partition wall 70 in the traveling direction, and a switching damper 76 is provided in the opening 70a.

  The ventilation ducts 78 formed above the lanes 71 to 73 are partitioned in the left-right direction in FIG. 1 corresponding to the lanes, and a switching damper 75 is disposed in the partition portion. Furthermore, an opening is formed in the outer wall 83 of the tunnel that forms the side surface of the rightmost ventilation duct 78, and an exhaust metal mesh 77 is attached to the opening.

  In the tunnel 100 configured as described above, the exhaust gas generated in the automobile up lane 71 or the automobile down lane 72 flows through the opening 70a provided in the partition wall 70 by operating the switching dampers 75 and 76, and the Fa And flows into the ventilation duct 78. Then, the air flows into the ventilation facility 90 described later in detail as the flow Fb through the exhaust metal mesh 77 disposed on the side of the ventilation duct 78.

  An example of the ventilation facility 90 is shown on the right side of FIG. The ventilation equipment 90 is a multilayer structure formed of concrete, and in order to exhaust air containing exhaust gas generated in the up lane 71 for automobiles and the down lane 72 for automobiles, there are passages and blow fans. Has been placed. In this embodiment, the exhaust passage includes a horizontal passage 56 provided in the lower portion of the ventilation equipment 90, a vertical passage 57 located on the downstream side of the corner portion 54, the corner portion 54, and the horizontal passage 56 in which the silencer 3 is disposed. , A corner portion 54 and an exhaust passage 52.

  A vertical fan 57 is disposed in the longitudinal passage 57, and the fan 55 flows air including exhaust gas from the upstream lane 71 and the downward lane 72 for the automobile in the tunnel 100 and sucks it as Fc and Fd. Flows Fe and Ff are discharged into the exhaust passage 52. A swing damper 79 is disposed at the entrance of the lowermost horizontal passage 56 and is used to adjust the amount of air sucked by the blower fan 55. Further, the blower fan 55, the switching dampers 75 and 76, and the swing damper 78 are controlled by a control device 92 provided in the middle stage.

  Here, the corner vane 1 is provided at the corner portion 54 of the passage in order to guide the air containing the exhaust gas sucked by the blower fan 55 to the exhaust passage 52 with less flow resistance. The details of the corner vane 1 will be described in detail with reference to FIGS. 2 is a diagram showing a temporary positioning construction state of the corner vane 1, FIG. 3 is a perspective view of the corner vane 1, and FIG. 4 is an exploded perspective view for explaining an assembly procedure of the corner vane 1.

  As shown in FIG. 2, the corner portion 54 of the ventilation facility 90 is a space having a height H, a width W, and a depth D. As an example, a space of H = 6 to 12 m, W = 6 m, and D = 6 m is an assembly work space for the corner vane 1. Since the work is performed in such a space, conventionally, the support plate 10 and the vanes constituting the corner vane 1 are all bolt-fastened and assembled in this space. Then, the upper end is bolted to the upper bearing attached to the concrete ceiling 50c or the locking beam 58, and the lower end is bolted to the lower bearing attached to the concrete floor 50f. As a result, the influence of the dimensional accuracy of the locking beam 58 composed of the concrete floor surface 50f, the concrete ceiling 50c, concrete, etc. greatly affects the assembling accuracy and the assembling process, which is a factor requiring a great number of processes. .

  Therefore, in this embodiment, as shown in detail in the exploded perspective view of FIG. 4, the corner vane 1 has a plurality of block bolt fastening structures that can be transported on the road, and the support plate 10 and the upper and lower supports 30, 40, Has a pin fastening structure.

  First, an upper support member 11 and a lower support member 12 having a tapered portion 11b at the tip end portion are produced from a steel plate narrower than the vane 20. Here, if the upper support member 11 and the lower support member 12 have the same shape, the manufacturing cost can be reduced. The tapered portion 11b has a substantially triangular shape and has a rounded tip adjustment portion, and a concentric hole 11a is formed in the tip portions of the upper and lower support members 11 and 12.

  On the other hand, a plurality of steel plates that are wider than the upper and lower support members 11 and 12 and in which a hole 20a that penetrates the upper and lower support members 11 and 12 is formed in the center in the longitudinal direction are rounded in an arc shape. And the flange 22 formed in the same arc shape as these upper and lower supporting members 11 and 12 is attached to the welding part 20d of the both ends of a longitudinal direction by welding, and the 1st vane 20 is created. A plurality of bolt holes 23 are formed in the flange 22 at intervals.

  Next, by using the holes 20a formed in the first vane 20, the plurality of first vanes 20 are skewered by the upper support member 11 or the lower support member 12, and the plurality of first vanes 20 are The upper support member 11 or the lower support member 12 is arranged at substantially equal intervals in the longitudinal direction. Then, the welding part 20c around the hole 20a is welded.

  The upper support member 11 and the lower support member 12 with the first vane 20 skewered are managed as corner vane materials thereafter. The vane material having the upper support member 11 and the vane material having the lower support member 12 are bolted together using the splice plate 18. Next, in order to expand the corner portion 54 to the full width, the first vane 20 and the second vane 28 are bolted together using bolts 25a and nuts 25b.

  Here, the second vane 28 has the same length as the first vane 20 in the bending direction, and has the same bent shape as the first vane. And the flange 27 is welded to the welding part 20f of both ends similarly to the 1st vane 20, The some bolt hole for engaging with the 1st vane 20 in the flange 27 at intervals. 26 is formed. The flange extends on both the inside and the outside of the steel plate of the second vane 28 bent in an arc.

  Since the corner vane 1 is exposed to the exhaust gas, the upper and lower support members 11 and 12 and the first and second vanes 20 and 28 are subjected to surface treatment for corrosion prevention. As an example of the surface treatment, hot dip galvanization is used. Since the hot dip galvanizing process is performed at a high temperature of 400 ° C., the rib 29 is attached to the welded part 20c at the intermediate part in the width direction of the second vane 28 by welding. The rib 29 has substantially the same shape as the flange 27 and is formed only inside the second vane 28 formed in an arc shape.

  In a state where the first and second vanes 20 and 28 are coupled, the corner vane 1 disposed on the floor surface is leaned and temporarily positioned as shown in FIG. This temporary positioning is an operation for positioning the anchor bolt 51a when the upper and lower bearings 30, 40 are attached to the anchor bolt. A chain block 62 as a lifting tool is attached to a hanging metal fitting 64 provided on the concrete ceiling surface 50 c or the locking beam 58, and a wire 65 wound around the corner vane 1 is attached to a hook 62 a of the chain block 62.

  An operator operates the chain block 62 and arranges it diagonally so that the upper support member 11 side of the corner vane 1 is up. The lower end portion of the lower support member 12 is placed on the movable carriage 66, and can be easily moved in the left-right direction in FIG. Further, in order to position the upper support 30 attached to the standing state and the concrete ceiling surface 50c or the locking beam 58, a ladder 60 is disposed on the corner vane 1 so that an operator can visually check the anchor bolt, and the upper support 30 is attached to the anchor bolt. The position 51a is accurately grasped and positioned.

  The upper end side of the corner vane 1 is provisionally determined, and the lower end portion is positioned at a position 51d that is attached to the lower support 40. And anchor bolt 51a is embed | buried in the arrangement position 51d of the lower support 40, and the lower support 40 is attached to the anchor bolt 51a with the nut 51b.

  Here, the upper bearing 30 and the lower bearing 40 have substantially the same shape. In the upper support 30, a pair of semi-elliptical leg members 34 are vertically attached to a mounting plate 32 in which a plurality of anchor holes 36 are formed on both ends with a gap therebetween. A through hole 35 is opened in the leg member 34 in parallel with the mounting plate 32, and a connecting pin 38 is engaged therewith. The connecting pin 38 includes a pin head 38a having a large diameter portion and a shaft portion 38c having a smaller diameter than the pin head 38a. A groove 38b is formed in the vicinity of the tip of the shaft portion 38c.

  The tip of the upper support member 11 constituting the support plate 10 is sandwiched between the pair of leg members 34, and the connecting pin 38 is inserted into the pin hole 35 and the hole 11a from the direction perpendicular to the insertion direction of the support plate 10. Finally, the keeper plate 37 is inserted into the groove 38 b, and screws are screwed from the screw holes 37 b formed in the keeper plate 37 to fix the keeper plate 37 to the leg member 34. Thereby, the corner vane 1 can be rotated around the connecting pin 38.

  The lower support 40 has the same structure, and a pair of leg members 44 each having a through hole 45 formed in the mounting plate 42 are erected, and the tip of the lower support member 12 is inserted between the pair of leg members 44 and then connected. The pin 48 is inserted into the pin hole 45 and the hole 12a from the lateral direction. The connecting pin 48 includes a pin head 48a and a shaft portion 48c, and a keeper plate 47 is attached to a groove 48b formed in the shaft portion 48c. Then, a screw is screwed into one leg member 44 from a screw hole 47b formed in the keeper plate, and the connecting pin 48 is fixed. Thereby, the corner vane 1 is rotatable with respect to the lower support 40.

  Here, since the lower support 40 is desired to have a structure capable of absorbing assembly errors and aging of the corner portion 54 formed of concrete, in the present invention, as described above, the connection between the lower support 40 and the corner vane 1 is performed. The corner vane 1 can be rotated with respect to the lower support 40 by using a pin connection.

  Further, as shown in FIG. 5B, in order to fix the lower bearing 40 to the anchor bolt 51a, a plurality of anchor bolt holes 46 formed at both ends of the mounting plate 42 of the lower bearing 40 are provided in the connecting pin axial direction. It is a long slot in a direction perpendicular to it. As a result, it is possible to absorb an assembly error or a positional shift due to aging. 5 (a) is a front view around the lower support 40, FIG. 5 (b) is a view taken along the arrow Y in FIG. 5 (a), and FIG. 5 (c) is a side view of the corner vane 1 after completion. FIG.

  FIG. 6 shows the details of the second vane 28 in a perspective view (FIG. 6A) and a partial cross-sectional view (FIG. 6B). As described above, the rib 29 is attached to the intermediate portion in the width direction of the second vane 28 by welding. The rib 29 is provided at one place in the width direction in the drawing, but may be provided at two or more places when the rib 29 is longer in the width direction. The rib 29 is also expected to have a rectifying action.

  FIG. 6B shows the bolt connection state of the first and second vanes 20 and 28. The flange 22 of the first vane 20 and the flange 27 of the second vane 28 are connected to the bolt 25a and the nut. Fastened with 25b. A plurality of holes 23 and 26 are formed in the flanges 22 and 27 at intervals in the bending direction, and the flanges 22 and 27 are welded to the vanes 20 and 28 by welding portions 20d and 20f.

  The assembly and construction method of the corner vane 1 having the above configuration will be described with reference to the flowchart shown in FIG. The upper support member 11 and the lower support member 12 are inserted into the vane members 20b of the plurality of first vanes 20, and are welded and fixed at a predetermined interval (step S710). Here, a hole 20a is formed in the vane member 20b in advance, and is bent after the hole 20a is formed. Further, flanges 22 are welded in advance to both ends of the first vane 20 in the width direction. In the case of the cantilever side that is not fastened to the second vane 28, the flange 22 may not be provided.

  Here, the first vane 20 is fixed to the lower support member 12 by welding. Then, the upper support member 11 to which the first vane 20 is attached and the lower support member 20 to which the first vane 20 is attached are bolted using a splice plate (step S720). Next, the first and second vanes 20 and 28 are bolted (step S730). Here, flanges 27 are preliminarily attached to both ends in the width direction of the second vane 28 by welding, and ribs 29 are welded and fixed to intermediate portions in the width direction in order to ensure rigidity.

  Since the corner vane 1 is assembled, the upper side of the corner vane 1 is lifted using the lifting tool 62. In the case of an automobile exhaust passage, the work is performed in a narrow area, so that a crane vehicle or the like used for normal lifting work cannot enter. For this reason, in this embodiment, the work is performed by the chain block 62. The upper side of the corner vane 1 placed flat by the chain block 62 is lifted and temporarily positioned (step S740). Next, the position where the upper support 30 is disposed is positioned on the concrete ceiling 50 c or the locking beam 58. Similarly, the position where the lower support 40 is disposed is positioned on the concrete wall 50w or the concrete floor 50f. Thereafter, a foundation bolt (anchor bolt) 51a is embedded in the positioned position (step S750).

  The upper support member 11 is sandwiched between the leg members 34 of the upper support 30, and the upper portion of the corner vane 1 is fastened by the connecting pin 38. In order to embed the anchor bolt 51a, the removed corner vane 1 is lifted again using the chain block 62 (step S760). The upper bearing 30 is attached to the anchor bolt 51a, and the upper bearing 30 is fixed to the concrete ceiling 50c or the locking beam 58 (step S770). Here, the order of step S760 and step S770 may be reversed.

  Since the upper side of the corner vane 1 is pivotably fixed, the lower support member 12 is sandwiched between the leg members 44 of the lower support 40 and fastened by the connecting pin 48 (step S780). At that time, the keeper plate 47 can prevent the connecting pin 48 from coming off. Using the long hole 46 provided in the mounting plate 42 of the lower support 40, the lower support 40 is fixed to the anchor bolt 51a embedded in the concrete floor 50f or the concrete wall 50w (step S790). In this lower bearing fixing operation, the degree of freedom of rotation of the upper and lower bearings 30 and 40 and the degree of freedom of longitudinal movement of the elongated hole 46 can be utilized, so that the assembly error of the corner vane 1 and the molding error of the concrete structure can be absorbed.

  According to this embodiment, the corner vane can be easily assembled. In other words, it is difficult to absorb the dimensional tolerance of the foundation and the water gradient in the conventional corner vane having the bolt joint structure, and it is easily affected by the unequal subsidence over time. On the other hand, the corner vane described in this example has a pin type support and a long hole, so there is an adjustment allowance for the finished dimensions and gradient of the foundation, and the corner vane dimensions are set to the foundation dimensions. It is not necessary to manufacture them together, and the manufacturing process can be shortened.

  Moreover, if the corner vane of a present Example is used, the followability of the material deformation | transformation with respect to a temperature change will improve. In other words, when a fire is generated on an automobile road and the smoke generated by the fire is exhausted, a high-temperature fluid passes through the exhaust passage, so the conventional corner vane is more easily curved and deformed than the thermal expansion of the material. It was. In the corner vane described in the present embodiment, with the above-described configuration, it is possible to release thermal expansion by the pin type support and the long hole, and a high degree of temperature followability can be exhibited.

  According to this embodiment, pressure loss can also be reduced. That is, in a corner vane having a conventional bolt fastening structure, the bolt head and nut become protrusions, resulting in pressure loss. Also, it was a cause of wind noise. In the corner vane of the present embodiment, since the bolt fastening portion is reduced as much as possible and the welding joint is used frequently, high aerodynamic performance can be exhibited.

  According to the present embodiment, the cost can be further reduced. In the conventional corner vane, a lot of labor was required for the bolt fastening work. However, since many welding joints were used, the construction time could be greatly reduced, resulting in a cost reduction. For example, the construction time which conventionally required about 20 days could be reduced to about 3 days.

  In addition, since a lot of welding joints are used, the rigidity of the corner vane can be improved, and it becomes possible to lift the corner vane in which the assembly support plate and the vane are integrated on the floor. As a result, the bolt fastening work at the high place is not required, and the temporary scaffold installation and the dismantling work accompanying the high place work are unnecessary.

DESCRIPTION OF SYMBOLS 1 ... Corner vane, 3 ... Silencer, 10 ... Support plate, 11 ... Upper support member, 11a ... Hole, 11b ... Tapered part, 12 ... Lower support member, 12a ... Hole, 12b ... Tapered part, 18 ... Keeper plate 20 ... first vane, 20a ... hole, 20b ... vane member, 20c-20f ... welded part, 22 ... flange, 23 ... bolt hole, 25a ... bolt, 25b ... nut, 26 ... bolt hole, 27 ... flange, 28 ... second vane, 29 ... rib, 30 ... upper support, 32 ... mounting plate, 34 ... leg member, 35 ... pin hole, 36 ... anchor hole, 37 ... keeper plate, 37b ... retaining screw hole, 38 ... Connecting pin, 38a ... Pin head, 38b ... Groove, 38c ... Shaft, 40 ... Lower support, 42 ... Mounting plate, 44 ... Leg member, 45 ... Pin hole, 46 ... Long hole, 47 ... Keeper plate, 4 a ... retaining screw, 47b ... retaining screw hole, 48 ... connecting pin, 48a ... pin head, 48b ... groove, 48c ... shaft, 50c ... concrete ceiling, 50f ... concrete floor (foundation), 50w ... concrete wall, 51a ... foundation Bolt (anchor bolt), 51b ... nut, 52 ... exhaust passage, 54 ... corner section, 55 ... fan, 56 ... lateral passage, 57 ... vertical passage, 58 ... locking beam, 60 ... ladder, 62 ... lifting tool ( Chain block), 64 ... Hanging metal fittings, 65 ... Wire (rope), 66 ... Moving carriage, 70 ... Partition wall, 70a ... Opening, 71 ... Up line for automobile, 72 ... Down line for automobile, 73 ... For railway Lane, 75, 76 ... switching damper, 77 ... exhaust pipe mesh, 78 ... ventilation duct, 79 ... swing damper, 81 ... foundation, 82 ... concrete outer wall, 83 ... tunnel outer wall, 90 ... Care facilities, 92 ... controller, 100 ... tunnel, Fa~Fe ... flow.

Claims (5)

In the corner vane for tunnel ventilation equipment provided in the passage for supplying air into the automobile tunnel or exhausting from the automobile tunnel,
A plurality of support plates extending in the vertical direction, a plurality of first vanes formed by bending in an arc shape to rectify the flow, and a plurality of second plates formed in an arc shape substantially the same as the first vane A vane, a first bearing attached to an upper end portion of the support plate to form a passage and locked to a ceiling surface, and a concrete floor surface attached to the lower end portion of the support plate to form a passage. And a hole through which the support plate penetrates is formed in the intermediate portion in the width direction of the first vane, and the second vane is disposed between the first vanes adjacent in the width direction. A corner vane for tunnel ventilation equipment, wherein the first and second supports support the support plate by pin coupling so as to be rotatable.   The support plate is formed in a plurality of divided structures having a size capable of carrying on public roads in the vertical direction, and each of the divided type support plates is bolted using a splice plate, and the first vane and the support plate The corner vane for tunnel ventilation equipment according to claim 1, wherein the first and second vanes are welded and integrated with each other in a groove formed in the first vane.   A hole through which an anchor bolt for fastening the second support to the concrete floor is provided in the second support, and the hole for the anchor bolt is a long hole having a long length with respect to a direction perpendicular to the width direction. The corner vane for tunnel ventilation equipment according to claim 1 or 2.   The upper and lower ends of the support plate are formed in a tapered shape, a through-hole through which a pin passes is formed in the tapered-shaped portion, and the support plate can be rotated around the through-hole portion. The corner vane for tunnel ventilation equipment according to any one of claims 1 to 3, wherein the corner vane is formed. In the installation method of the corner vane for tunnel ventilation equipment provided in the passage for supplying air into the tunnel for automobile or exhausting from the tunnel for automobile,
A support plate is passed through a plurality of first vanes formed by bending a flat plate having a hole formed in the intermediate portion in the width direction on the floor of the tunnel corner or in the vicinity thereof, and then the first vane is moved to the first vane. The support plate is welded, and at the same time, first and second supports are attached to the upper end side and the lower end side of the support plate via pins, and the first vane is adjacent between the first vanes in the width direction. A corner vane is completed by fixing a second vane having the same bending shape as that of the vane by bolting, and the upper end portion of the completed corner vane for tunnel ventilation equipment is lifted by using a lifting means, and the second vane is provided at the upper end portion. Rotate 1 support centered on the pin part and fix it on the wall of the corner of the tunnel, then fix it with anchor bolts, then rotate the 2nd support on the lower end side about the pin part Install it on the concrete floor and The second method of installing the corner vane tunnel ventilation, characterized in that fixed to the concrete floor with anchor bolts with a long hole provided in the bearing after.

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