JP6345922B2 - Waste heat structure - Google Patents

Description

  The present invention relates to an exhaust heat structure, and more particularly to an exhaust heat structure for discharging radiant heat from a roof of a building to the outdoors.

  The roof of the building is directly exposed to solar heat. Therefore, for example, in summer, the temperature of the roof may be very high. Therefore, in general buildings, a ceiling is provided under the roof in order to insulate the radiant heat from the roof.

  Moreover, in order to efficiently ventilate the attic space in a building having a ceiling, a blower (fan) may be provided. For example, in Japanese Patent Application Laid-Open No. 2008-25860 (Patent Document 1), a ventilation fan for sending indoor air into a ceiling space is provided on the ceiling. Moreover, in Unexamined-Japanese-Patent No. 2002-194830 (patent document 2), in order to diffuse and discharge the air of a shed space, the omnidirectional diffuser is provided in the ceiling beam of the shed.

  Further, as disclosed in Japanese Patent Application Laid-Open No. 2010-121863 (Patent Document 3), the entire roof is configured as a ventilation facility, and a ventilation opening is provided in each of a lower glass corresponding to the ceiling and an upper glass corresponding to the roof. An established building (garage) has also been proposed.

JP 2008-25860 A JP 2002-194830 A JP 2010-121863 A

  Most of the buildings for work, such as factories and warehouses, do not have a ceiling. Therefore, especially during periods of strong solar radiation, such as in summer, the indoor space of such a building becomes a very harsh working environment due to radiant heat from the roof.

  Thus, it is conceivable to provide a ceiling as a measure against solar heat as described above. However, since a large-scale construction is required, it is not practical as a measure against solar heat to an existing building.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an exhaust heat structure capable of easily exhausting radiant heat from a roof.

  An exhaust heat structure according to an aspect of the present invention is an exhaust heat structure for discharging radiant heat from a roof of a building to the outdoors, and includes a plurality of beams that support the roof, a support member, and a plurality of sheet members. And an exhaust means. The plurality of beams are arranged to be exposed at intervals. The support member is attached to the beam, and the plurality of sheet members are arranged with a gap therebetween at a position below the beam, and are suspended from the beam via the support member. The exhaust means is disposed at a position higher than the plurality of sheet members, and exhausts hot air staying in an upper space between the roof and the plurality of sheet members.

  Preferably, air supply means for sending hot air staying in the upper space and air in the lower space located below the sheet member, which is attracted to the upper space through the gap between the plurality of sheet members, to the exhaust means Further prepare.

  Preferably, the exhaust means includes a mechanically driven ventilation fan.

  The ventilation fan is preferably provided on the outer wall of the building.

  In this case, it is desirable that the air supply means includes an air supply fan provided at a position higher than the plurality of seat members on the outer wall facing the outer wall provided with the ventilation fan.

  Moreover, the exhaust means may be provided on the roof of the building.

  In this case, it is desirable that the exhaust means is arranged for each section divided by the beam.

  Further, the air supply means may include an air supply gallery provided at a position below the plurality of seat members on the outer wall of the building.

  Preferably, the support member includes a holding portion that holds end portions of the plurality of sheet members.

  The support member further includes a latching portion that is latched by the flange on the lower end side of the beam, and a connecting portion for connecting the holding portion and the latching portion.

  The plurality of sheet members may be partially provided in the building.

  The sheet member is preferably a member that shields radiant heat from the roof.

  According to the present invention, the radiant heat from the roof can be easily exhausted.

It is a schematic cross section which shows typically the exhaust heat structure which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the attachment structure of the sheet | seat member in Embodiment 1 of this invention. It is a perspective view which shows the attachment structure of the sheet | seat member in Embodiment 1 of this invention. It is a schematic plan view which shows typically the exhaust heat structure which concerns on Embodiment 1 of this invention. It is a schematic plan view which shows typically the exhaust heat structure which concerns on the modification of Embodiment 1 of this invention. It is a schematic cross section which shows typically the exhaust heat structure which concerns on Embodiment 2 of this invention. It is a schematic cross section which shows typically the exhaust heat structure which concerns on Embodiment 3 of this invention. It is a schematic cross section which shows typically the environment in a common factory.

  Embodiments of the present invention will be described in detail with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals and description thereof will not be repeated.

  First, prior to the description of the exhaust heat structure according to the present embodiment, a working environment in a general factory will be briefly described with reference to FIG.

  Referring to FIG. 8, a general factory 100 does not have a ceiling below the roof 11. The “ceiling” is a member that vertically divides a space located below the roof 11, that is, the entire indoor space 9 surrounded by the roof 11, the floor 16, and the outer walls 12, 13,. In the factory 100, the plurality of I-type or H-type beams 2 that support the roof 11 are exposed in the indoor space 9. The roof 11 is, for example, a folded plate roof.

  In order to ventilate the indoor space 9 of the factory 100, an air supply gallery 3 and a ventilation fan 4 are provided on the outer walls 12 and 13 facing each other. The air supply gallery 3 is arranged below the outer walls 12 and 13 and naturally takes in the external air and supplies it to the indoor space 9. The ventilation fan 4 is disposed above the outer walls 12 and 13 and discharges contaminants generated in the indoor space 9. For example, the ventilation fan 4 is arranged with the vicinity of the lower end position of the beam 2 as the upper end. For example, two ventilation fans 4 are provided for each of the outer walls 12 and 13.

  In such a factory 100, when the roof 11 receives solar heat in summer, the temperature of the roof 11 exceeds 60 ° C. Even when a high solar reflectance paint is applied to the roof 11, the temperature of the roof 11 can only be expected to decrease by about 10 ° C. Even if the air temperature in the indoor space 9 is lowered to some extent by the ventilation fan 4 or the like, the temperature of the roof 11 is kept high and continues to emit strong radiant heat. Therefore, the temperature in the indoor space 9 becomes high due to the radiant heat from the roof 11. In addition, since various internal devices 81 exist in the factory 100, the temperature in the indoor space 9 is increased by internal heat generated by these devices 81. Then, hot air stays in the indoor space 9 as shown by the dashed-dotted ellipse in FIG. Furthermore, since the factory 100 has nothing to block the radiant heat, the sensible temperature of the operator is increased by about 2 ° C., for example, due to the radiant heat from the roof 11. Therefore, the indoor space 9 of the general factory 100 in the summer becomes a very harsh working environment.

  In this embodiment, in order to improve such a working environment, the human body is protected from the radiant heat emitted from the roof 11 and exhausted from the radiant heat in the manner of parasoling the human body in the factory. It is said. Below, the exhaust heat structure of a building without a ceiling will be described in detail.

<Embodiment 1>
FIG. 1 is a schematic cross-sectional view schematically showing the exhaust heat structure according to Embodiment 1 of the present invention. FIG. 1 shows a factory 1 as a building without a ceiling. In FIG. 1, the same reference numerals are given to the same or corresponding components as those of the general factory 100 shown in FIG.

  Similar to the general factory 100, the factory 1 includes a folded plate-like roof 11, opposed outer walls 12 and 13, and a plurality of beams 2 that support the roof 11. The plurality of beams 2 are exposed in the indoor space 9, and are arranged at intervals. The beam 2 corresponds to a so-called large beam, and a small beam (not shown) orthogonal to the beam 2 is arranged between the adjacent beams 2. A direction in which the beam 2 extends is referred to as a “depth direction”, and a direction orthogonal to the beam 2 (a direction in which the small beam extends) is referred to as a “width direction”. Further, it is assumed that the width direction is longer than the depth direction. The width direction is indicated by an arrow A1 in FIG.

  In the present embodiment, a plurality of sheet members 5 that partition the indoor space 9 in the vertical direction are provided using these exposed beams 2. The plurality of sheet members 5 are disposed at positions below the beam 2 with gaps therebetween. The sheet member 5 is preferably a member that shields radiant heat from the roof 11 (heat shield material), and more specifically, is preferably formed of a material that reflects radiant heat. In that case, it is desirable that the emissivity of the surface of the sheet member 5 is small. Specifically, as a material of the sheet member 5, for example, a polyester material, a resin material, a metal plate such as a steel plate, or the like is assumed. However, it is desirable that the sheet member 5 is light and durable.

  In the following description, the small space (the space between the roof 11 and the sheet member 5) located above the seat member 5 in the indoor space 9 of the factory 1 is referred to as “upper space 91”. A large space below the sheet member 5 (a space between the sheet member 5 and the floor 16) is referred to as a “lower space 92”. The lower space 92 is a work space for workers.

  The mounting structure of the sheet member 5 will be described with further reference to FIGS.

  2 and 3 are a cross-sectional view and a perspective view, respectively, showing the seat member mounting structure in Embodiment 1 of the present invention. FIG. 3 shows an arrow A2 representing the depth direction together with an arrow A1 representing the width direction.

  As shown in FIGS. 1 to 3, in the present embodiment, a gap 51 exists between the sheet members 5 adjacent in the width direction. The plurality of sheet members 5 are supported by the plurality of support members 6 and are suspended from the beam 2 via the support members 6. The support member 6 is made of metal, for example.

  As shown in FIGS. 2 and 3, the support member 6 includes, for example, a hooking portion 61, a connecting portion 62, and a holding portion 63. The hook 61 is hooked to the lower flange 22 of the beam 2. The flange 22 of the beam 2 extends from the lower end of the web 21 extending in the vertical direction to both sides. The latching portion 61 is attached to the beam 2 by, for example, sandwiching the end portion in the width direction of the flange 22.

  The holding portion 63 holds the end portion of the sheet member 5. It is desirable that the sheet member 5 is detachably attached to the holding portion 63. In that case, the holding | maintenance part 63 and the sheet | seat member 5 should just be attached with a hook-and-loop fastener etc., for example. The holding portion 63 may not be configured to hold the end portion of the sheet member 5 as long as an appropriate gap 51 can be secured between the sheet members 5.

  The connecting part 62 extends in the vertical direction and connects the latching part 61 and the holding part 63. The connecting portion 62 is preferably formed in a bar shape or a string shape, for example. The length of the connecting portion 62 is determined such that the sheet member 5 is disposed at a position below the lower end of the beam 2 by, for example, 500 to 1000 mm.

  As shown in FIG. 3, one edge in the width direction of one sheet member 5 is held at intervals in the depth direction by the holding portions 63 of the plurality of support members 6. A space between the connecting portions 6 of the support members 6 adjacent to each other in the depth direction is an air passage as described later.

  As described above, the radiant heat from the roof 11 can be significantly cut only by arranging the plurality of sheet members 5 that roughly partition the upper space 91 and the lower space 92. However, if hot air remains in the upper space 91 (stagnation), the hot air may leak into the lower space 92 from the gap 51 between the sheet members 5. Therefore, in this Embodiment, it is set as the structure which discharges the hot air of the upper space 91 using the ventilation fan 4 with which the general factory 100 (FIG. 8) is equipped. The specific structure will be described with further reference to FIG.

  FIG. 4 is a schematic plan view schematically showing the exhaust heat structure according to Embodiment 1 of the present invention. In FIG. 4, the arrangement positions of the beams 2 are indicated by alternate long and short dash lines.

  As shown in FIGS. 1 and 4, in the factory 1, for example, two ventilation fans 4 are provided on the upper space 91 side of one outer wall 13 in the same manner as the general factory 100. On the other hand, instead of the ventilation fan 4 of the general factory 100, for example, two air supply fans 7 are provided on the upper space 91 side of the other outer wall 12. The air supply gallery 3 is provided below the outer wall 12 where the air supply fan 7 is provided, but is not provided below the outer wall 13 where the ventilation fan 4 is provided.

  In the present embodiment, the two ventilation fans 4 are provided on the outer wall 13 at a position near the outer wall 14 and a position near the outer wall 15, respectively. The two air supply fans 7 are provided at positions facing these ventilation fans 4. As shown in FIG. 1, the air supply fan 7 and the ventilation fan 4 are located between the lower end position of the beam 2 and the seat member 5. Note that at least one of the fans 7 and 4 may be disposed at the same height as the beam 2. In that case, the fans 7 and 4 may be provided inside the beam 2 located closest to the outer wall, and a duct extending from the fans 7 and 4 may penetrate the web 21 and the outer walls 12 and 13 of the beam 2. .

  It is desirable that the air supply fan 7 has high air straightness and a long reach distance. The air supply fan 7 takes in outside air and blows out air to the upper space 91, thereby sending air to the ventilation fan 4 provided on the opposing outer wall 13. Thereby, the hot air staying in the upper space 91 flows vigorously on the plurality of sheet members 5.

  Here, the gap 51 between the sheet members 5 adjacent in the width direction is an interval at which the air in the lower space 92 can be taken into the upper space 91. As described above, in the present embodiment, since the end portion of the sheet member 5 is held by the holding portion 63 of the support member 6, the gap 51 between the sheet members 5 is roughly the width dimension of the beam 2. It is about the same. Specifically, the gap 51 is preferably 100 to 500 mm, for example. Note that these gaps 51 may be different for each position of the beam 2. Further, when the interval between the adjacent beams 2 is narrow, there may be a portion where there is no gap 51 between the adjacent sheet members 5.

  Thus, in this embodiment, since there is a gap 51 between the sheet members 5 adjacent in the width direction, the air in the lower space 92 also moves from the gap 51 to the upper space 91 as the air flows in the upper space 91. Attracted. Therefore, hot air due to radiant heat staying in the upper space 91 and air (hot air) in the lower space 92 attracted from the gap 51 are discharged from the ventilation fan 4.

  Thus, according to the present embodiment, both exhaust heat of radiant heat and ventilation of the work space can be realized. Therefore, the temperature rise of the lower space 92 can be suppressed, and as a result, the working environment can be improved.

  Further, since there is a gap 51 between the sheet members 5 adjacent in the width direction, as shown in FIG. 2, an illumination 82 such as a mercury lamp can be arranged in this separated portion. That is, the illumination 82 can be suspended from the beam 2. For example, when the hole 22a (FIG. 3) is provided in the flange 22 of the beam 2, the illumination 82 may be attached using the hole 22a. Further, not only the illumination 82 but also a hanging member such as a fire alarm may be arranged in the separated portion of the sheet member 5.

  In the present embodiment, the sheet member 5 is provided for each section (span) divided by the beam 2. However, when the interval between the beams 2 is narrow, the sheet member 5 is provided for each of the plurality of sections. May be provided. That is, the support member 6 may not be attached to all the beams 2.

  Moreover, although the air supply fan 7 and the ventilation fan 4 are provided two by two, it is sufficient that at least one is provided.

  In FIG. 4, the sheet member 5 is also divided in the depth direction and there is a gap 52 between them. However, the gap 52 may not be present. That is, it is sufficient if there is a gap on the air flow path (in the present embodiment, the width direction).

  In the present embodiment, the mechanically driven air supply fan 7 is provided as the air supply means for promoting exhaust from the ventilation fan 4. However, the air supply means may be only the air supply gallery 3 that performs natural air supply. The exhaust heat structure in this case will be described below as a modification of the present embodiment.

(Modification)
FIG. 5 is a schematic plan view schematically showing an exhaust heat structure according to a modification of the first embodiment of the present invention. Referring to FIG. 5, when only the air supply gallery 3 is used as the air supply means, the plurality of air supply gallery 3 is provided, for example, on one outer wall 15 facing in the depth direction. The air supply gallery 3 is preferably provided for each section divided by the beam 2. In this case, the ventilation fan 4 is also provided for each section partitioned by the beam 2 on the other outer wall 14 facing in the depth direction. In this modification, neither the air supply means nor the exhaust means is provided on the outer walls 12 and 13 facing in the width direction. Similarly to the above, it is assumed that the air supply gallery 3 is provided on the lower space 92 side and the ventilation fan 4 is provided on the upper space 91 side.

  In the present modification, a plurality of sheet members 5 are arranged with gaps 52 in the depth direction. In this case, the desired dimension of the gap 52 is the same as the dimension of the gap 51 of the first embodiment. On the other hand, in this modification, the gap 51 between the sheet members 5 in the width direction may be equal to or less than the gap 52.

  Even if the air supply means is the air supply gallery 3 as in this modification, the hot air in the upper space 91 is caused to flow in the depth direction by providing the air supply gallery 3 only at a position facing the ventilation fan 4. And can be discharged from the ventilation fan 4. Also in this modification, the air (hot air) in the lower space 92 is attracted from the gap 52 between the sheet members 5 and is discharged from the ventilation fan 4 together with the hot air in the upper space 91. Therefore, also in this modification, both exhaust heat of radiant heat and ventilation of the work space can be realized. Further, according to the present modification, an energy saving effect can be expected from the first embodiment by using the air supply device 3 as the air supply device.

<Embodiment 2>
In the first embodiment, a ventilation fan installed in a general factory is used as the exhaust means. However, in this embodiment, other types of exhaust means are used. Only differences from the first embodiment will be described in detail below.

  FIG. 6 is a schematic cross-sectional view schematically showing the exhaust heat structure according to Embodiment 2 of the present invention. Referring to FIG. 6, a factory 1 </ b> A is provided with a plurality of roof fans (roof fans with a roof) 4 </ b> A as exhaust means. In this case, no air supply fan 7 is provided on any outer wall, and at least one air supply gallery 3 is provided only on one outer wall 12, for example.

  The roof fan 4A is mechanically driven. The roof fan 4 </ b> A is desirably arranged on the roof 11 for each section partitioned by the beam 2. Further, the roof fan 4 </ b> A may be disposed at a position shifted from the gap in the depth direction, that is, directly above the sheet member 5.

  According to this Embodiment, the hot air of the upper space 91 by the radiant heat from the roof 11 is reflected by the sheet | seat member 5, and is discharged | emitted so that it may be sucked upwards as it is. In the factory 1B, since the exhaust means is provided only on the roof 11, also in the present embodiment, the hot air in the lower space 92 is transferred to the upper space 91 from the gap between the sheet members 5 (for example, the gap 51 in the width direction). Can be captured. Therefore, also in the present embodiment, both exhaust heat of radiant heat and ventilation of the work space can be realized.

  In the present embodiment, since the hot air in the upper space 91 flows upward, the plurality of sheet members 5 may be disposed so as to have a gap in at least one of the width direction and the depth direction.

  In this embodiment, the roof fan 4A that is mechanically driven is provided on the roof 11 of the factory 1A. However, instead of the roof fan 4A, a smoke exhaust toplight that performs natural ventilation may be provided. Good.

<Embodiment 3>
In the first and second embodiments, a plurality of sheet members are provided in the entire factory. However, in the present embodiment, a plurality of sheet members are partially provided. Only differences from the first embodiment will be described in detail below.

  FIG. 7 is a schematic cross-sectional view schematically showing the exhaust heat structure according to Embodiment 3 of the present invention. Referring to FIG. 7, the plurality of sheet members 5 are arranged, for example, about half in the width direction. The sheet member 5 is provided closer to the outer wall 13. In this case, the indoor space 9 of the factory 1B includes an upper space 91A and a lower space 92A formed on the outer wall 13 side, and another space 93 formed on the outer wall 12 side where the sheet member 5 is not disposed. The

  In the present embodiment, the supply air louver 3 and the ventilation fan 4 are provided on each of the outer walls 12 and 13 facing each other in the width direction, like the general factory 100 shown in FIG.

  Here, in the present embodiment, in order to send hot air in the upper space 91 </ b> A to the ventilation fan 4 provided in the outer wall 13, the air supply fan 7 </ b> A is disposed at the end of the upper space 91. Specifically, the air supply fan 7A is arranged, for example, immediately above the seat member 5 closest to the outer wall 12. The air supply fan 7 </ b> A can be attached to the beam 2 or the roof 11. The air supply fan 7A may have a shorter air reach than the air supply fan 7 provided on the outer wall 12 in the first embodiment.

  When an overhead crane is installed in the factory 1 or when a worker's work space is limited, the seat member 5 is partially arranged as in the present embodiment, so that the inside of the factory 1 The work environment can be improved efficiently.

  Note that the ventilation fan 4 on the outer wall 12 side in contact with the other space 93 may be changed to the air supply fan 7 (FIG. 1) as shown in the first embodiment. In that case, the air supply fan 7A provided in the indoor space 9 may be omitted. In that case, at least the air supply gallery 3 on the outer wall 12 side may not be provided. That is, the arrangement position and performance of the air supply means (air supply fan) and the exhaust means (ventilation fan) may be the same as those in the factory 1 described in the first embodiment. By doing in this way, the sheet | seat member 5 can be arrange | positioned to the whole factory (indoor space 9) according to a condition, or can be arrange | positioned partially. Further, when it is not necessary to take measures against solar heat such as in winter, the sheet member 5 can be partially or entirely removed. Even when the sheet member 5 is removed, the sheet member 5 may be easily attached and detached by leaving the support member 6 attached to the beam 2.

  As described above, according to each embodiment, a plurality of sheet members are arranged apart from each other, and the exhaust heat and work of the radiant heat from the roof can be performed only by adjusting the arrangement positions of the air supply means and the exhaust means. The space can be efficiently ventilated. In other words, exhaust heat and ventilation in the factory can be easily performed without installing a ceiling under the roof of the factory. As a result, the working environment in the factory can be easily improved.

  In each embodiment and modification, a factory has been described as an example. However, as long as the building does not have a ceiling, it can be applied to buildings other than the factory. For example, when applied to a house, the work space in the above description may be read as a living space and the work environment as a living environment.

  Moreover, you may combine each embodiment and modification suitably suitably.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  1, 1A, 1B, 100 Factory, 2 beams, 4 ventilation fans, 4A roof fan, 5 seat members, 6 support members, 7, 7A air supply fan, 9 indoor space, 11 roof, 12, 13, 14, 15 outer wall , 16 floor, 21 web, 22 flange, 61 hooking part, 62 coupling part, 63 holding part, 81 internal device, 82 illumination, 91, 91A upper space, 92, 92A lower space, 93 other space.

Claims (11)

Exhaust heat structure for discharging radiant heat from the roof staying in the upper space located below the roof of the building to the outside and discharging the air in the lower space located below the upper space to the outdoors for ventilation In
A plurality of beams arranged at intervals and supporting the roof; and
A plurality of support members attached to the beam;
A plurality of sheet members that are arranged with a gap between them at a position below the beam, suspended from the beam via the support member, and partitioning the upper space and the lower space ;
An air supply means disposed in the upper space and located on one side;
An exhaust means disposed in the upper space and located on the other side away from the air supply means,
By flowing the air taken in from the air supply means toward the exhaust means, the hot air staying in the upper space is discharged from the exhaust means to the outdoors by the flow of air discharged from the exhaust means to the outside,
With the air flowing from the air supply means toward the exhaust means, the air in the lower space is attracted to the upper space from the gaps between the plurality of sheet members on the air flow path in the upper space , An exhaust heat structure that exhausts the air together with the hot air .   The exhaust heat structure according to claim 1, wherein the exhaust means includes a mechanically driven ventilation fan.   The exhaust heat structure according to claim 2, wherein the ventilation fan is provided on an outer wall of the building.   The exhaust heat structure according to claim 3, wherein the air supply means includes an air supply fan provided on an outer wall facing the outer wall provided with the ventilation fan.   The exhaust heat structure according to claim 1, wherein the exhaust means is provided on a roof of the building.   The exhaust heat structure according to claim 5, wherein the exhaust unit is arranged for each section partitioned by the beam.   The exhaust heat structure according to claim 6, wherein the air supply means includes an air supply gallery provided at a position below the plurality of seat members on the outer wall of the building.   The exhaust heat structure according to claim 1, wherein the support member includes a holding portion that holds end portions of the plurality of sheet members.   The exhaust heat according to claim 8, wherein the support member further includes a hook portion hooked to a flange on a lower end side of the beam, and a connecting portion for connecting the holding portion and the hook portion. Construction.   The exhaust heat structure according to claim 1, wherein the plurality of sheet members are partially provided in the building.   The exhaust heat structure according to claim 1, wherein the sheet member is a member that shields radiant heat from the roof.

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