JP4035624B2 - Heat exchanger - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a heat exchange device that moves a heat medium in a controlled manner, that is, a downflow roof that diffuses and appropriately distributes a flowing down heat medium. In particular, the present invention relates to a heat exchange device for a surface to be bonded which is continuous in a strip shape in the lateral direction and has a step in the longitudinal direction, for example, a flat roof. Specifically, if warm water is allowed to flow along the heat exchange device in the form of this roof, snow can be removed or melted in the winter in the winter, solar heat can be collected in the summer, and cold water can be collected. Can be used to cool the roof.
[0002]
[Prior art]
2. Description of the Related Art A flow regulating member that regulates the flow of a heat medium by alternately providing a main flow path and a sub flow path on the surface of a member in a streak manner is well known.
[0003]
[Problems to be solved by the invention]
The problem of such a setting member is that, firstly, the restraint performance of the heat medium is greatly affected by the construction accuracy of the adherend surface and the quality of the mounting position of the setting member itself. Specifically, the upper and lower lateral strips overlap each other on the adherend surface of the laying structure in which the plane is continuous in a strip shape in the horizontal direction like a flat structure surface and the upper strip strips cover the joints in parallel. The portion forms a stepped step, and the slope of the regulating member at a position exceeding the step changes with the flow path along the lower edge of the belt-like portion. Therefore, in the regulating member at this location, if the flow path is not perpendicular to the lower edge, the flow path changes its direction obliquely and the flow surface is inclined.
[0004]
In the case of roofs that are manually crafted with goby joints and stacked vertically, unlike horizontal roofs, horizontal accuracy will not be relied on. It takes time and is not familiar with the field work.
[0005]
Further, as a second problem of the leveling member, when a flat roof is taken as an example, the overlapped level difference is about 10 mm, and the flow leveling level at this point is in a non-contact state with respect to the roof surface. It is in. Accordingly, 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 metal plate may corrode due to condensation, causing water leakage. In addition, water that has entered the space may stay in the interior and leak from the goblet joint due to the siphon phenomenon.
[0006]
[Means for Solving the Problems]
The support surface of the water-absorbent sheet is a roof surface in which strip-shaped surface elements that are continuous in the lateral direction are arranged in parallel in the vertical direction, and the roof surface is formed by covering the upper edge of the lower planar element with the lower edge of the upper planar element. Use as A water-absorbent sheet is bonded in a form covering the roof surface. The water absorbent sheet functions to impregnate and flow down the heat medium. A heat medium supply means for supplying a heat medium onto the water absorbent sheet is installed above the water absorbent sheet. The water-absorbent sheet is disposed at the step position of the upper and lower planar elements and includes an opening formed in the 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 spacing located between the upper contour edge and the lower contour edge. The lower edge of the flat element located in contact with the opening cushions and drip the movement of the heat medium flowing down along the water absorbent sheet. While passing to the upper part of a planar element, a level | step difference is exposed through this opening and it is comprised so that drainage and ventilation | gas_flowing of a level | step difference can be performed.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The surface of the roof formed by laminating the strip-shaped surface elements 1 that are continuous in the horizontal direction in a vertically parallel manner and covering the upper edge 3 of the lower planar element with the lower edge 2 of the upper planar element is a water absorbent sheet. Used as a support surface. The water absorbent sheet is installed and fixed in a form covering the roof surface. As a fixing method, there are a method by adhesion and a method of mechanically constraining a key point. There are two methods for mechanically fixing: a method using a wire-like presser fitting and a method using a clamp.
The water-absorbent sheet in FIG. 1 shows an example of an adhesive sheet that is laterally attached to 10 rows of planar elements. 3 and 5 show an example of a water-absorbent sheet in the form of an adhesive tape that is laterally attached to one row of planar elements. FIG. 6 shows a form of application of the water absorbent sheet of FIG. Whether to stick vertically or horizontally can be selected according to the form of the roof.
[0008]
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 made of a porous film, or a membrane material laminated with a water-absorbing material is used. The material is a matter of choice.
[0009]
The water absorbent sheet functions to impregnate and flow down the heat medium. A heat medium supply means (not shown) for supplying a heat medium onto the water absorbent sheet is installed above the water absorbent sheet. The water absorbent sheet forms an opening 4. The opening 4 is arranged at a step position between the upper and lower planar elements and is formed in the lateral direction along the step. For example, the opening 4 has a configuration as shown in FIGS.
[0010]
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 from the upper contour edge 5 to the lower contour edge 6. And a side edge 7 that forms a water conduit 8 arranged with a gap therebetween. The opening 4 shown in FIG. 2 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, and the lower edge of the planar element is exposed from the opening. The upper contour edge 5 can be applied in alignment with the lower edge of the planar element.
[0011]
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 guide channel 8 has a protruding tongue-like shape that overlaps the upper part of the lower water absorbent sheet. is doing. The overlapping portions can be bonded to each other.
[0012]
The heat medium flowing down along the absorbent sheet encounters the lower edge 2 of the planar element. When the heat medium encounters the lower edge, the moving speed is buffered. The heat medium supplied to the uppermost part of the water-absorbent sheet is set to, for example, 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 roughly. The amount of flowing water per 10 cm sheet width is 90 cc to 180 cc. The heat medium immediately after the flow path is interrupted drops from the lower edge and drops onto the lower planar element. The lower edge of the upper planar element serves as a delivery of the heat medium, and the opening conduit forms a flow path for the heat medium. By this method, the movement of the heat medium from the upper planar element to the lower planar element causes a difference in flow velocity in each region, and a boundary region of speed difference in the lateral direction along the water absorbent sheet.
[0013]
In the example of FIG. 4, the upper contour edge 5 and the lower contour edge 6 of the opening 4 have an inverted V shape and a V shape, respectively. According to this configuration, it can be seen that the heat medium that has encountered the upper contour edge 5 tends to be diverted to both sides, and is delivered by dropping from the lower edge 2. The heat carrier falling from the lower edge tends to collect somewhat along the V-shaped lower contour edge. These phenomena involve a V-shaped inclination angle, a sheet thickness, and a roof inclination angle.
[0014]
FIG. 5 shows the state of the roof surface when 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 absorbent sheet.
[0015]
By providing the opening as described above 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, making it difficult for water to enter from the step to the back, resulting in good drainage. Ventilation is also performed through the opening.
[0016]
【The invention's effect】
By configuring as described above, even if a water absorbent sheet is attached, the step portion of the original roof retains its contour, and the aesthetic feeling of the roof is not changed. A relatively small amount of heat medium can flow down without being affected by the roof construction accuracy, and can be constructed regardless of the planar shape of the roof.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of application of a water absorbent sheet.
FIG. 2 is a perspective view showing a state where 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 application 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 a pasting example of another form of the water absorbent sheet.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Belt-like plane element 2 Lower edge 3 Upper edge 4 Opening 5 Upper outline edge 6 Lower outline edge 7 Side edge 8 Water conduit

Claims (3)

A roof surface in which strip-shaped surface elements that are continuous in the horizontal direction are arranged in parallel in the vertical direction and are stacked in a form that covers the upper edge of the lower planar element at the lower edge of the upper planar element, and the belt-like surface of this roof surface A band-shaped water-absorbing sheet that is laterally bonded to each of the planar elements, and the water-absorbing sheet that is disposed in a step position between the upper and lower planar elements and that is formed laterally along the step. An opening that is not covered, and a heat medium supply means for supplying a heat medium onto the water absorbent sheet disposed on the roof surface,
The water absorbent sheet has a V-shaped portion along the lower edge of the planar element, or forms a projecting heat medium conduit that communicates with the upper portion of the lower absorbent sheet, and passes through the conduit. A heat exchanging device configured to provide a boundary region of a speed difference in a region of a heat medium between a region flowing down and a region where a moving speed is buffered by encountering a lower edge of the planar element and dropping on the planar element below.   2. The heat exchange device according to claim 1, wherein the water-absorbent sheet is made of a strip-shaped material arranged in a lateral direction along a single planar element.   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.

Images