• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    An exhaust air shield is intended to be installed on the roof of a building, at the end of an outlet duct from a ventilation device. From air protection it comprises a side wall (10), which has an upper edge (12) and a lower edge (14), and a tubular duct connection (16), which has a first end (16a) and a second end (16b). The first end of the duct connection extends into the space delimited by the side wall. At a distance from the first end of the duct connection there is a flow regulator (20), the largest cross-sectional area measured at its widest point is larger than the cross-sectional area of the first end of the duct connection. The flow regulator prevents rainwater from raining straight down into the duct connection. Advantageously, the flow regulator has a disc-shaped base (22) and a funnel-shaped, advantageously cone-shaped side surface (24), which has a tip (26), which is directed towards the first end of the duct connection. At the edge of the base of the flow regulator there may be a collar (30) facing the duct connection. The collar acts as a drip plate, which prevents water that has rained down on the base from flowing to the side surface of the flow regulator and along the side surface further down into the duct connection. At the first end of the duct connection there may be a funnel-shaped extension part (18), in the wall of which there are holes (32) for the flow of water. Figure 1b
    公开号:SE1450344A1
    申请号:SE1450344
    申请日:2014-03-25
    公开日:2014-09-27
    发明作者:Tommi Uksila
    申请人:Climecon Oy；
    IPC主号:
    专利说明:

    The object of the invention is to develop an exhaust air protection, with which one can reduce the problems related to known exhaust air protection.
    The objects according to the invention are achieved with an exhaust air protection, which is characterized by what is presented in the independent patent claim. Some advantageous embodiments of the invention are presented in the dependent claims.
    The invention relates to an exhaust air protection, which is intended to be installed on the roof of a building, at the end of an outlet duct coming from a ventilation apparatus. The exhaust air protection comprises a side wall, which has an upper edge and a lower edge, and a tubular duct connection, which has a first end and a second end. The first end of the duct connection extends into the space delimited by the side wall.
    The exhaust air protection is planned to be installed on the roof of the building so that the duct connection is substantially vertical and the upper edge of the side wall is directed upwards. The other end of the duct connection is intended to be connected to the end of an outlet duct coming from the ventilation device.
    In the exhaust air protection according to the invention, the first end of the duct connection has a cross-sectional area and at a distance from the first end of the duct connection there is a flow regulator which has a cross-sectional area. The cross-sectional area of the duct connection here refers to the area delimited by the wall of the duct connection, which surface in relation to the longitudinal direction of the duct connection is a perpendicular plane. The channel connection can be round or polygonal, such as quadrilateral, in its cross-sectional shape. The cross-sectional area of the flow regulator here refers to the cross-sectional area which is rectified with the cross-sectional area of the duct connection.
    The flow regulator is a shaped part, so its cross-sectional size and shape depends on where on the flow regulator you make the cross-section. It is essential that the largest cross-sectional area made at the widest point of the flow regulator is larger than the cross-sectional area of the first end of the duct connection, ie. the cross-section of the duct connection is contained within the area delimited by the cross-section of the flow regulator. Advantageously, the flow regulator is located on the imaginary center axis of the duct connection. Seen from the first end of the duct connection, the flow regulator thus completely covers the first end of the duct connection. This prevents the flow regulator from rainwater raining straight into the duct connection.
    The flow regulator is at a distance from the first end of the duct connection, so the flow regulator still does not prevent the flow of exhaust air out through the first end of the outlet connection. In an advantageous embodiment of the exhaust air protection according to the invention, said flow regulator has a disc-shaped base and a funnel-shaped, advantageously cone-shaped side surface which has a tip which points towards the first end of the duct connection. Advantageous is the tip of the side surface on the imaginary center axis of the duct connection.
    The funnel-shaped side surface of the flow regulator forms in the first end of the duct connection a regulating surface, which regulates the exhaust air flowing out from the first end to an even flow which surrounds the flow regulator on all sides.
    Advantageously, the funnel-shaped side surface of the flow regulator is substantially immovable in relation to the duct connection.
    In a second advantageous embodiment of the exhaust air protection according to the invention, the base of the flow regulator has an edge which revolves around it, which edge has a collar which faces in the direction of the duct connection. The collar acts as a drip plate, which prevents water that has rained on the base from flowing to the side surface of the flow regulator and along the side surface further into the duct connection. The collar is at the widest part of the flow regulator, so its circuit is larger than the cross-section of the first end of the duct connection. Drops that form on the edge of the collar and fall down from there do not fall into the duct connection.
    In a third advantageous embodiment of the exhaust air protection according to the invention, the tip of the flow regulator and the first end of the duct connection are substantially on the same plane. The flow regulator thus begins to regulate the flow direction of the cut-off air which flows out of the duct connection as soon as the cut-off air has flowed out of the duct connection.
    In yet another advantageous embodiment of the exhaust air protection according to the invention, in the first end of the duct connection there is a funnel-shaped extension part, which has a first end, which has a first cross-sectional area, and a second end, which has a second cross-sectional surface. The second cross-sectional area is larger than the first cross-section, i.e. the cross-section of the extension part grows as one moves from the first end to the second end. Advantageously, the cross-section of the extension part grows substantially evenly between the first and second ends.
    The flow regulator is at least partially, advantageously substantially completely, in the space delimited by the extension part between the plane marked by the first end and the plane marked by the second end. The cut-off air which has flowed out of the duct connection thus flows past the flow regulator along an annular gap between the side surface of the flow regulator and the wall of the funnel-shaped extension part. In another advantageous embodiment of the exhaust air protection according to the invention, the wall of the extension part has holes for the flow of water. The holes in the wall enable water that has fallen into the extension part to flow out of the extension part through the holes, before it can flow into the duct connection. Advantageously, the wall of the extension part has an inner surface against the flow regulator and an outer surface against the side wall and in at least a part of the holes at least a part of the edge of the hole has been turned to protrude from the outer surface of the wall. Advantageously, the part of the edge of the hole has been turned away from the wall, which part is further from the first end of the extension part. In an exhaust air protection installed in place, this means that the upper edge of the holes in the wall of the extension part has been turned to point downwards. Water that flows along the inner surface of the wall of the extension part thus does not begin to circle around the hole, but it flows through the holes away from the extension part. Holes can be provided in a required amount on different parts of the wall of the extension part. Advantageously, at least a part of the holes is close to the first end of the extension part, i.e. the connection point between the extension part and the first end of the duct connection.
    In yet another advantageous embodiment of the exhaust air protection according to the invention, the extension part is attached at its other end to the side wall. Advantageously, the other end of the extension part and the base of the flow regulator are substantially on the same plane.
    In yet another advantageous embodiment of the exhaust air protection according to the invention, the upper edge of the side wall delimits an opening which has a surface, and the upper edge has a reduction part which reduces the surface of said opening. The exhaust air flows out of the exhaust air protection via the opening delimited by the reduction part in the upper edge.
    Due to the reduction of the opening surface, the flow rate of the outflowing exhaust air increases at the reduction part. Advantageously, the opening is covered by a net, which prevents birds, animals and small objects from entering the exhaust air protection.
    An advantage of the exhaust air protection according to the invention is that in it the flow route of the exhaust air upwards is as smooth as possible, for which reason the pressure loss remains small.
    An advantage of the invention is in addition that it effectively prevents water from entering the exhaust air duct via the open upper part of the cover even when the ventilation apparatus is not running. The exhaust air protection thus has a good degree of separation in all situations. Another advantage of the exhaust air protection according to the invention is that its modular structure enables the utilization of series production in the production of the product. Next, the invention is described in detail. The description refers to the accompanying drawings, in which Figure 1a shows as an example an exhaust air protection according to the invention seen from the side, Figure 1b shows as an example the exhaust air protection shown in Figure 1a as a vertical section and Figure 1c shows as an example the exhaust air protection shown in Figures 1a and 1b seen from above.
    Figure 1a shows as an example an exhaust air protection according to the invention seen from the side. The figure shows the exhaust air protection in the position it will be when it is installed on the roof of a building in accordance with its purpose of use. The exhaust air protection has a side wall 10, which has eight substantially identical edge walls.
    The side wall is thus a octagon seen from above (figure 1c). Figure 1a shows three of the side walls' eight edge walls. The side wall has an upwardly directed upper edge 12 in Figure 1a and a downwardly directed lower edge 14. The side wall has a notch 13 which revolves around it, which notch divides the side wall in its height direction into two parts, an upper part 10a and a lower part 10b. The side wall is a substantially uniform, air and waterproof wall. The exhaust air protection comprises a duct connection 16, the first end 16a of which extends into the space delimited by the side wall, between the plane marked by the upper edge 12 and the plane marked by the lower edge 14 (figure 1b). The other end 16b of the duct connection extends outside the space delimited by the side wall.
    The exhaust air protection is intended to be installed on the roof of a building so that the other end of the duct connection is connected to the end of the outlet duct that comes from the ventilation device.
    Figure 1b shows the exhaust air protection shown in figure 1a as a vertical section. The side wall 10 is open at both ends. The first end 16a of the duct connection 16 rounding in its cross-section extends into the space delimited by the side walls approximately to the middle plane plane marked by the lower edge 14 of the side wall and the plane marked by the groove 13. The duct connection is located substantially in the middle of the space delimited by the side wall , so that the imaginary center axis of the duct connection is on the same line as the imaginary center axis of the side wall. At the first end of the duct connection there is a funnel-shaped extension part 18 in its shape, which has a cross-sectional shape round the first end 18a and a second end 18b rectangular to the cross-sectional shape. The first end 16a of the duct connection 16 is fitted through the first end of the extension part, so that the first end of the duct connection extends slightly into the extension part. The duct connection is attached to the extension part with screws or rivets. The diameter of the first end of the duct connection and the diameter of the first end of the extension part are dimensioned so that they can fit into each other in the manner described above.
    The cross-sectional shape of the second end 18b of the extension portion 18 is substantially contiguous with the cross-sectional shape of the inner surface of the side wall 10. The extension part is attached at its other end to the inner surface of the side wall a little above the groove 13. The wall of the extension part is made of thin steel plate, which has a continuous round hole 32. The diameter of the hole can be 10-20 mm. The holes can also be polygonal or square in shape. Holes have been placed in annular formations in the height direction seen in the area between the center of the extension part and its first end. The part of the edge 32 of the hole which is higher up in the height direction, ie. the part which is further from the duct connection has been bent in the direction of the wall of the duct connection, so that the curved edge projects from the plane of the outer surface of the extension part, ie. the surface to the side wall 10. The function of the holes is to offer water flowing along the inner surface of the extension part a removal route to the outside of the extension part 18. The bending of the upper part of the edge of the holes ensures that the water flowing along the wall of the extension part does not start circling around the edge of the holes, but it is guided through the hole.
    Inside the space delimited by the extension part 18 there is a flow regulator 20, which has a cone-shaped side surface 24 and a disc-shaped, waterproof base 22. The flow regulator is supported by means of support rods at the other end of the duct connection 16, so that it is held in place in relation to the duct connection (the support rods are not shown in the figure). The cone-shaped side surface of the flow regulator is thus substantially immobile in relation to the duct connection. The cross-section of the support rods is chosen so that they disturb the exhaust air flow coming from the duct connection as little as possible. The flow regulator is substantially in the middle of the extension part, so that the base 22 is substantially in the same plane as the plane marked by the other end 18b of the extension part. The tip 26 of the side surface is on the imaginary center axis of the duct connection and points towards the first end of the duct connection 16.
    The tip is, seen in the height direction of the exhaust air protection, substantially on the plane marked by the first end 16a of the duct connection. The base 22 is in its shape a round disc, around the edge of which it revolves a band-shaped collar 30. The collar is attached at its one edge to the edge of the base, so that the free edge of the collar is directed downwards in the direction of the channel connection 16 wall. The free edge of the collar acts as a drip strip, which causes rainwater to rain on the base and flows over the edges of the base to form drops and fall down. Rain water collected on the base can thus not flow over the edge to the conical side surface 24 of the extension part 24. The base 22 is dimensioned so that its diameter is substantially larger than the diameter of the first end 16a of the duct connection 16. The base thus acts as a rain cover, which prevents rainwater from raining straight into the canal connection. Water droplets falling from the collar strike the inner surface of the extension member, from where they flow further via the heel 32 through the wall of the extension member 18 out of the extension member and the exhaust air guard.
    The upper edge 12 of the side wall 10 delimits in the upper part of the exhaust air protection an opening 40. In the inner surface of the upper edge there is a circumferential reduction part 42 with a triangular-shaped cross-sectional shape, which reduces the free surface of the opening 40.
    Figure 1b shows with arrows drawn with a dashed line how the purge air, ie. the exhaust air coming from the ventilation device flows into the exhaust air protection.
    The run-off air flows into the run-off air protection along the duct connection 16. At the first end 16a of the duct connection, the run-off air flow branches so that it circulates annularly past the flow regulator 20 in the gap between the flow regulator side surface 24 and the extension part 18 wall. Due to the design of the wall of the extension part and the first end of the duct connection which extends into the extension part, the purge air flow is not directed towards the heel 32. In this way, purge air can hardly flow through the heel 32 out of the purge air protection. The exhaust air flow is removed from the exhaust air protection via the open opening 40 of the upper part. The reduction part 42 in the edges of the opening reduces the effective surface of the opening, for which reason the flow rate of the exhaust air increases. Thanks to the increase in the flow rate, the air flow leaving the purge air protection has a high flow rate, with which efficient mixing of the purge air with the ambient air is achieved.
    Figure 1c shows as an example the exhaust air protection shown in Figures 1a and 1b seen from above. The figure shows how the base 22 of the flow regulator is substantially larger than the cross-section of the duct connection 16, whereby, seen from above, it completely covers the duct connection from a view. The heel 32 in the wall of the extension part 18 is placed in concentric annular formations, so that water flowing along the wall of the extension part is guided as efficiently as possible into the heel. The free opening 40, delimited by the reduction part 42, in the upper edge of the side wall 10 is covered with a metal net 44, the mesh size of which is 15-25 mm (Figure 1c). To preserve the clarity of the figure, only a part of the metal mesh is shown in figure 1c.
    The cut-off air protection according to the invention can easily be scaled according to the needs of use to different sizes and shapes without changing the basic structure of the protection. The height of the side wall protection 10 15 20 25 can be, for example, 600 mm-1500 mm and the width 1200 mm-3000 mm. The duct connection leading into the cut-off air protection can be round, square or quadrilateral in its cross-sectional shape, and its cross-sectional area can vary within wide limits. For example, the width of a rectangularly shaped duct connection may be 300 mm-800 mm and the length 800 mm-1800 mm.
    The side wall 10 of the purge air shield shown in Figures 1a, 1b and 1c has an octagonal cross-sectional shape. The appearance of the cut-off air protection according to the invention can easily be changed by using a side wall with a different shape. A side wall with a rectangular cross-sectional shape can be replaced by a side wall with a square cross-sectional shape, which is shown in Figure 1c with dashed lines, which has the same side measurement. Thus, triangular adapter pieces 46 are placed in the corners of the side wall. The shape of the exhaust air protection can also be enlarged in one direction, so that its opposite ends are measured and the shapes of the side wall remain as before. This is how you get an elongated shape seen from above for the exhaust air protection. The appearance of the cut-off air protection can thus easily be changed with the help of side walls with different shapes. Then, in the production of the exhaust air protection, series production can be used and the inner parts of the protection and different side walls can be produced for storage. The parts of the cut-off air protection are made of metal, preferably steel, and the parts are fastened to each other with a somewhat suitable fastening method, such as welding, screws or rivets.
    Some advantageous embodiments of the exhaust air protection according to the invention have been described above. The invention is not limited to the solutions described above, but the inventive idea can be applied in various ways within the limits defined by the claims.
    权利要求:
    Claims (12)
    [1]
    Fringe air protection, comprising a side wall (10) having an upper edge (12) and a lower edge (14), a tubular duct connection (16) having a first end (16a) and a second end (16b) , which first end extends into a space delimited by the side wall (10), characterized in that the first end of the duct connection has a cross-sectional area and at a distance from the first end of the duct connection (16) there is a flow regulator (20), which flow regulator (20 ) has a largest cross-sectional area which is larger than the cross-sectional area of the first end of the duct connection (16).
    [2]
    Flue air protection according to claim 1, characterized in that said flow regulator (20) has a disc-shaped base (22) and a funnel-shaped, advantageously cone-shaped side surface (24) shaped in the form, which has a first end pointing towards the channel connection (16) tip (26).
    [3]
    Flue air protection according to Claim 2, characterized in that the base (22) of the flow regulator (20) has a circumferential edge which has a collar (30) which faces the duct connection (16).
    [4]
    Run-off air protection according to Claim 2 or 3, characterized in that the tip (26) of the flow regulator (20) and the first end (16a) of the duct connection (16) are substantially in the same plane.
    [5]
    Flue air protection according to one of Claims 1 to 4, characterized in that in the first end (16a) of the duct connection (16) there is a funnel-shaped extension part (18), which has a first end (18a), which has a first break-through surface, and a second end (18b) having a second cross-sectional area, which second cross-sectional area is larger than the first cross-sectional area, and the flow regulator (20) is at least partially inside the space defined by the extension part (18) between the plane marked by the first end (18a) and the plane marked by the other end (18b).
    [6]
    Flue air protection according to Claim 5, characterized in that the wall of the extension part (18) has a heel (32) for the flow of water.
    [7]
    Run-off air protection according to claim 6, characterized in that the wall of the extension part (18) has an inner surface against the flow regulator (20) and an outer surface against the side wall (10) and in at least a part of the heel (32) has at least a part of the edge of the heel is expected to protrude from the outer surface of the wall. 10 10
    [8]
    Exhaust air protection according to Claim 6 or 7, characterized in that at least a part of the holes (32) lies close to the first end (18a) of the extension part (18).
    [9]
    Exhaust air protection according to one of Claims 5 to 8, characterized in that the extension part (18) is fastened at its other end (18b) to the side wall (10).
    [10]
    Exhaust air protection according to one of Claims 5 to 9, characterized in that the other end (18b) of the extension part (18) and the base (22) of the flow regulator (20) are substantially on the same plane.
    [11]
    Exhaust air protection according to one of Claims 1 to 10, characterized in that the upper edge (12) of the side wall (10) delimits an opening (40) which has a surface, and in the upper edge (12) there is a reduction part (42). ) which reduces the area of said opening (40).
    [12]
    Exhaust air protection according to Claim 11, characterized in that the opening (40) is covered by a net (44).
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    同族专利:
    公开号 | 公开日
    FI125481B|2015-10-30|
    FI20135290A|2014-09-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    2016-06-21| NAV| Patent application has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    FI20135290A|FI125481B|2013-03-26|2013-03-26|Exhaust air hood|
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