JPH0638287Y2 - Flow-through type solar collector and roof structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a roof structure that also serves as a downflow solar collector.

(Prior Art) A downflow solar collector using a sheet material includes, for example,
There are those described in Japanese Utility Model Publication No. 58-145448 and Japanese Utility Model Publication No. 58-8062, and various sheet materials have been proposed for use.

(Problems to be solved by the invention) In general, the heat collector needs to be self-supporting and have a certain level of self-confidence against external loads. It is used. When installing the heat collector, it is a customary practice to install it safely as permanent equipment, which has a drawback of increasing equipment costs. A simple collector made of sheet material can be manufactured relatively inexpensively, but since the collector itself does not have sufficient strength, it is necessary to withstand disasters such as typhoons. The mount needs to be fairly strong. According to the conventional installation method in which fixed-size sheet heat collectors, which are mass-produced products, are arranged side by side on the pedestal, the service life of the heat collectors is too short for the pedestal cost, and both are disproportionate and in terms of cost. Irrationality remains. Although the sheet-made collector is inexpensive in itself, the cost reduction effect of the collector does not have enough impact to motivate purchase when viewed from the total cost including the stand cost and other incidental equipment. . For example, even if the unit cost of the heat collector can be sold at about one fifth of the price of the conventional flat plate heat collector, the total amount of the heat collector in the total equipment cost is one third or less, As a result, the cost can be reduced by just under 25%. As described above, the effort to reduce the cost of the heat collector in the total system cost does not have any special meaning unless the heat collector is a single product having a heat collecting surface of several square meters and is not a large number of large facilities. However, this can be said only when there is no problem with the durability of the heat collector, and in the case of a heat collector with a relatively short service life, depreciation is almost non-existent when the replacement / repair costs are taken into consideration. I have to say that it is possible.

Against such a background art, the applicant has made trial production of various systems by making the development of various systems as a priority goal of the development of increasing the size of the single sheet collector, which is contrary to the conventional idea.
In short, not only the cost of the collector but also the total cost of materials will be drastically reduced, and if it is damaged in a safe form against a typhoon-like disaster, which is once every several decades, The applicant of the present application recognizes that it is unavoidable and that the development of a system that makes maintenance / replacement costs extremely low instead is an urgent task that meets social needs.

According to the questionnaire survey for entrepreneurs conducted by the applicant, there is no plan to purchase it in the near future, mainly because the heat collection equipment is not a substitute for the boiler but an excess of equipment in a sense. Reached 70%. In addition, most of the remaining respondents who are interested in purchasing have the amortization period of approximately 2 to 3 years.

(Means for Solving the Problems) According to the present invention, a pillar that is a part of the frame structure of a structure and a pair of beams that are fixed to the pillar and that are arranged laterally opposite to each other are used. Make a tray-like lower roof member by straddling the lower sheet material that is laterally continuous between the beams by attaching both ends to the lower peripheral edge of each beam through the eyelets at both ends and attaching the beams. Then, the upper sheet material whose inner surface forms the flow surface of the heat carrier liquid between the beams so that both ends are in contact with the upper peripheral edge of each beam is fixed to the spanning beam to create the upper roof member,
The lower roof member, the upper roof member, and the beam are integrated to form a roof structure of a building, and heat collection and cooling of the roof are simultaneously performed by a heat medium liquid flowing on the inner bottom surface of the upper roof member. It is possible to obtain a roof structure that also serves as a downflow solar collector.

(Operation and effect) With the configuration as described above, a large heat collector having a single structure in which two sheet materials which are close to the original material to which some processing has been applied and which are continuous in a hollow state are used. Is configured. The unit cost of the heat collector is the cost of manufacturing these two sheets of material and the cost of site installation work, and it is possible to build a roof that also serves as a heat collector at a cost that is almost the same as the work done by the tent sewing company. If this heat collector can be used as a roof structure for material storage, barns, poultry houses / pigs, bicycle sheds, etc., the cost of the heat collector will be evaluated by subtracting the cost that can be regarded as the roof structure from the construction cost of the heat collector. As a result, it has become possible to significantly reduce the production cost of the heat collector.

(Example) FIG. 1 shows a pillar which is a part of a skeleton structure of a building and a pair of beams 1a and 1b which are fixed to the pillar and are arranged laterally opposite to each other. Between the beams 1a and 1b,
Upper sheet material 2 and lower sheet material bottom surface 4 in a loop
Is stretched in tension. The method of attaching the upper sheet material 2 and the lower sheet material can be performed by using a normal tent setting technique. For example, thread the eyelets provided at both ends of the lower sheet material through the eyelet, and attach the beam to the beam so that both ends are in contact with the lower peripheral edge of each beam,
A lower sheet material can be stretched between these beams.

The beam 1b is arranged at a higher position than the beam 1a, and the lower sheet material stretched between these beams forms an inclined surface as shown in the figure and is used as a lower roof member of the roof structure of the structure.

FIG. 2 shows in detail the beam 1b and the upper end of the sheet material wrapped around this beam. The upper sheet material 2 is composed of a heat receiving surface 3 having heat collecting performance. The upper sheet material and the lower sheet material are continuous laterally along the beam, and the side openings are closed by any means to form the greenhouse space 5.

The heat medium liquid is supplied to the surface of the heat receiving surface 3, the supplied heat medium liquid flows down along the inner surface of the heat receiving surface 3, and heat exchange is performed with the heat receiving surface.

In the illustrated example, the upper beam 1b is used as a heat medium liquid supply pipe, and the liquid is discharged from the nozzle 6 provided in this supply pipe. The discharged heat medium liquid is the rectifying sheet 7
The heat medium liquid is adsorbed on the inner surface of the heat receiving surface 3 from this rectifying sheet.

[Brief description of drawings]

FIG. 1 is a simplified cross-sectional view showing an embodiment of a falling-type solar collector / roof structure according to the present invention. FIG. 2 is an enlarged cross-sectional explanatory view showing an upper portion of the heat collector shown in FIG. 1a, 1b …… beam 2 …… upper sheet material 3 …… heat receiving surface 4 …… bottom surface 5 …… closed space 6 …… nozzle 7 …… rectifying sheet

Claims (1)

[Scope of utility model registration request] 1. A strut which is a part of a skeleton structure of a structure and a pair of beams which are fixed to the strut and which are arranged laterally opposite to each other are used, and both ends are provided at the lower peripheral edge of each beam. Tie them down and attach them to the beams through the eyelets at both ends to create a tray-like lower roof member by straddling the lower continuous sheet material horizontally between these beams, and the both ends are the upper part of each beam. An upper sheet material having an inner surface forming a flow surface of the heat carrier liquid between the beams so as to contact the periphery is fixed to the straddling beam to form an upper roof member, and the lower roof member, the upper roof member, and the The roof structure of the building also has a roof structure that combines the beams to construct a roof structure for the building, and simultaneously collects heat and cools the roof with the heat medium liquid that flows on the inner and lower surfaces of the upper roof member. body.