JP2000186862A - Heat exchange apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flat thatched roof heat exchange apparatus wherein provided warm water flows along the roof shaped heat exchange apparatus, snow removal or snow melting is achieved in winter while collection of solar heat is achieved in summer, and further provided cold water is flowed, the roof is cooled. SOLUTION: Band-shaped surface elements extending continuously laterally are disposed up and down in parallel, and there are formed a roof surface where a lower upside edge 3 is overlapped on an under side edge 2 of the upper flat surface element, a water absorption sheet bonded to the roof surface and impregnated with a heat medium and flowing down it, and heat medium supply means provided on the former sheet. An opening 4 formed laterally along a step of the water absorption sheet includes an upper contour edge 5 and a lower contour edge 6, and a side edge 7 that forms a conduit passage 8 disposed between the upper and lower contour edges. The lower edge drops a heat medium flowing down along the absorption sheet and delivers it to an upper portion of the lower flat surface element. Drainage and ventilation near the step are achieved through the opening.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat exchange device for moving a heat medium in a controlled manner, that is, a falling roof capable of diffusing and properly distributing a flowing heat medium. The present invention particularly relates to a heat exchange device for a surface to be bonded which is continuous in a strip shape in the horizontal direction and has a step in the vertical direction, for example, a flat-roofed roof. Specifically, by flowing hot water along this roof-shaped heat exchange device, snow can be removed or snow can be removed from the roof in winter, solar heat can be collected in summer, and cold water can be collected. Can cool the roof.

[0002]

2. Description of the Related Art A flow regulating member for regulating the flow of a heat medium by alternately providing a main flow path and a sub flow path alternately on the surface of a member is well known.

[0003]

The first problem with such a regulating member is that the performance of restraining the heat medium is greatly affected by the accuracy of the work on the surface to be bonded and the mounting posture of the regulating member itself. Specifically, on the surface to be bonded of a laid structure in which flat surfaces are continuous in a band shape in the lateral direction like a flat roof structure surface, and the band-shaped portion of the upper step covers and hides the joints in parallel,
The overlapping upper and lower horizontal strips form a step-like step, and the slope of the regulating member at a position beyond the step changes at the lower edge of each strip in the flow path. Therefore, in the regulating member at this location, if the flow-down path is not orthogonal to the lower edge, the direction of the flow-down path changes obliquely and the flow lower surface is inclined.

[0004] In the case of a roof in which a goby-wound joint is manually constructed and laid on top and bottom, unlike a tile-roof type roof, the horizontal accuracy is not inherently relied upon, and a vertical flow path is set up accurately. This would be very time-consuming and would not be familiar with on-site work.

As a second problem of the regulating member, taking a flat-roofed roof as an example, the level of the overlapping roof is about 10 mm, and the flowing-down regulating member at this point straddles the step and is not in contact with the roof surface. In contact. Therefore, the gap between the upper and lower roof members is closed by the flow regulating member to form a closed space. The enclosed space becomes wet, and the condensation may corrode the metal plate and cause water leakage. In addition, water that has entered the space may stay inside and leak from the goby coil joint due to a siphon phenomenon.

[0006]

A strip-shaped surface element that is continuous in the lateral direction is arranged in a vertical arrangement, and is overlaid so that the lower edge of the upper planar element covers the upper edge of the lower planar element. The roof surface is used as a support surface for the water absorbent sheet. A water-absorbing sheet is adhered to the form covering the roof surface. The water-absorbing sheet functions to impregnate and flow down the heat medium. At a position above the water-absorbent sheet, a heat medium supply means for supplying a heat medium onto the water-absorbent sheet is provided. The water-absorbent sheet
An opening is provided at a step position of the upper and lower planar elements and formed in a lateral direction along the step. The opening has an upper contour edge along the lower edge of the upper planar element and a lower contour edge located on the surface of the upper portion of the lower planar element, and a gap located between the upper contour edge and the lower contour edge. And a side edge forming a water passage that is placed and arranged, and the lower edge of the planar element positioned in contact with the opening buffers the movement of the heat medium that has flowed down along the water-absorbent sheet, and allows the heat medium to drip down. It is configured to be delivered to the upper part of the planar element, and to expose the step through this opening to allow drainage and ventilation near the step.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION A strip-shaped surface element 1 which is continuous in the horizontal direction is arranged vertically and side by side, and is overlaid so that a lower edge 2 of an upper planar element covers an upper edge 3 of a lower planar element. The roof surface is used as a support surface of the water absorbent sheet 3. The water-absorbent sheet is installed and fixed so as to cover the roof surface. As a fixing method, there are a method by adhesion and a method of mechanically restraining a key point. Methods of mechanical fixing include a method using a wire-like holding metal fitting and a method using a clamp. The water-absorbent sheet 3 of FIG. 1 shows an example of a pressure-sensitive adhesive sheet that is horizontally attached to ten rows of planar elements. 3 and 5
Shows an example of a pressure-sensitive adhesive tape-shaped water-absorbing sheet that is horizontally attached to one row of planar elements. FIG. 6 shows the form of attachment of the water-absorbent sheet of FIG. Whether to paste vertically or horizontally can be selected according to the form of the roof.

As the water-absorbent sheet, a material capable of absorbing water, for example, a woven fabric, a nonwoven fabric, a knitted fabric, a sheet material formed of a porous film, and a film material laminated with a water-absorbing material are used. The choice of material is optional.

The water-absorbent sheet 3 functions to impregnate and flow down the heat medium. At a position above the water-absorbent sheet, a heat medium supply means (not shown) for supplying a heat medium onto the water-absorbent sheet is provided. The water-absorbent sheet 3 has an opening 4.
The opening 4 is arranged at a step position between the upper and lower planar elements, and is formed laterally along the step. The opening 4 has a form as shown in FIGS. 1 to 5, for example.

The opening 4 has an upper contour edge 5 along the lower edge 2 of the upper planar element and a lower contour edge 6 located on the surface of the upper part of the lower planar element, and a lower contour edge from the upper contour edge 5 to the lower contour. Headraces 8 spaced apart located between edges 6
And a side edge 7 forming Opening 4 shown in FIG.
Has a rectangular shape. The upper contour edge 5 of the opening is arranged in contact with the lower edge 2 of the planar element, the lower edge of the planar element being exposed from the opening. The upper contour edge 5 can be applied in alignment with the lower edge of the planar element.

In the example shown in FIG. 3, the side edge 7 of the opening 4 is formed in the same direction as in FIG. 2, but the water conduit 8 is formed in a protruding tongue shape overlapping the upper part of the lower water absorbing sheet. The form is. The overlapping portions can be glued to each other.

The heat medium flowing down along the water absorbing sheet encounters the lower edge 2 of the planar element. The moving speed of the heat medium is buffered by encountering the lower edge. The heat medium supplied to the uppermost portion of the water-absorbent sheet is set, for example, at 150 cc to 300 cc per square meter of the sheet. The longer the flow distance, the greater the initial supply. For example, if the length of the roof is 6 meters, it is almost. The flow rate per 10 cm sheet width is 90 cc to 180 cc. Immediately after the flow path is interrupted, the heat medium drops from the lower edge and falls onto the planar element below. The lower edge of the upper planar element serves to transfer the heat medium, and the water conduit of the opening forms the flow path of the heat medium. According to this method, the movement of the heat medium from the upper plane element to the lower plane element causes a flow velocity difference in each region, and a boundary region of the velocity difference occurs in the lateral direction along the water absorbent sheet.

In the example of FIG. 4, the upper contour edge 5 and the lower contour edge 6 of the opening 4 are inverted V-shaped and V-shaped, respectively. According to this configuration, the heat medium that has encountered the upper contour edge 5 tends to be diverted to both sides, and the lower edge 2 is delivered by dropping. The heat medium that has fallen from the lower edge tends to collect somewhat along the V-shaped lower contour edge. These phenomena involve the V-shaped tilt angle, the sheet thickness, and the roof tilt angle.

FIG. 5 shows a state of the roof surface when the construction is performed as shown in FIG. The opening 4 in this example is different from the previous one in that the water conduit is interrupted and does not reach the lower water absorbing sheet.

By providing the above-described opening in the water-absorbent sheet, the step is exposed through this opening. As a result, drainage in the vicinity of the step is performed through the opening, and it is difficult for water to penetrate deep into the depth from the step, and drainage is good. Ventilation is also provided through the openings.

[0016]

According to the construction described above, even if the water-absorbent sheet is mounted, the contour of the original step portion of the roof is kept, and the aesthetic feeling of the roof is not changed.
Irrespective of the construction accuracy of the roof, a relatively small amount of heat medium can flow down with regularity, and construction can be performed irrespective of the planar shape of the roof.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of attaching a water absorbent sheet.

FIG. 2 is a perspective view showing a state in which a water absorbent sheet is attached.

FIG. 3 is a perspective view showing another attached state of the water absorbent sheet.

FIG. 4 is a perspective view showing another attached state of the water absorbent sheet.

FIG. 5 is a perspective view showing another construction example of the water absorbent sheet.

FIG. 6 is a perspective view showing another example of attaching a water-absorbent sheet.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Strip-shaped planar element 2 Lower edge 3 Upper edge 4 Opening 5 Upper contour edge 6 Lower contour edge 7 Side edge 8 Headrace channel

Claims (3)

[Claims] A roof surface formed by arranging strip-shaped surface elements that are continuous in the lateral direction in a vertical arrangement and covering the upper edge of the lower planar element with the lower edge of the upper planar element; A water-absorbing sheet adhered to the roof surface so as to cover the roof surface and impregnated with the heat medium to flow down, and a heat medium supply means for supplying the heat medium onto the water-absorbent sheet disposed above the water-absorbent sheet The water-absorbent sheet has an opening disposed at a step position of the upper and lower planar elements and formed in a lateral direction along the step, and the opening is formed by a lower edge of the upper planar element. A lower contour edge located on the surface of the upper contour edge along the upper part of the lower planar element, and a side forming a spaced waterway located between the upper contour edge and the lower contour edge A planar element having an edge and located in contact with said opening The side edge buffers the movement of the heat medium flowing down along the water-absorbent sheet, drops it and delivers it to the upper part of the lower flat element, and exposes the step through this opening to allow drainage and ventilation near the step. The configured heat exchange device. 2. The heat exchange device according to claim 1, wherein the water-absorbent sheet is made of a material covering a plurality of planar elements. 3. The heat exchange device according to claim 1, wherein the water-absorbent sheet is formed of a strip-shaped material arranged laterally along a single planar element.