JP2006337009A - Solar heat collector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To eliminate a group of pipes through which a liquid heat medium flows and to eliminate the need to weld the pipes to a heat collecting plate and thus the need for a heater, making it possible to reduce costly man hours. <P>SOLUTION: In this solar heat collector, corrugated boards 3 each having a corrugated cross section and whose straight vertical direction serves as its longitudinal direction are inserted between upper and lower independent plate-shaped members 1, 2 arranged in parallel, opposing relationship. The solar heat collector has nipples 4, 9 provided near at least two corners of a case taking the form of a rectangular parallelepiped having almost six sides, two of which are the sides of the upper and lower plate-shaped members. The longitudinal length of the corrugated board is shorter than the longitudinal length of the inner surface of the case by about twice the diameter of the nipple or more. The corrugated board is positioned at each longitudinal end of the inside of the case in such a way as to create gaps without the corrugated board. Alternatively, instead of the corrugated boards a plurality of ribs or projections are longitudinally machined on the inner surface of the case from either the upper plate 1 or the lower plate 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a solar heat collector and a solar collector used in water heaters, water heaters and the like.

Solar water heaters and water heaters that use solar heat as a heat source use solar heat collectors, but they are broadly divided into two types: a storage type and a circulation type. The storage type is an inexpensive system. However, the collector efficiency is inferior to the circulation type.
There are also two types of circulation types: natural circulation type and forced circulation type. The forced circulation type consumes electric power driven by the pump but has high heat collection efficiency, so it is generally widely used for full-scale items and large-scale items.
There are some simple things like laying the tank diagonally along the roof, but because the heat collection efficiency is low, the most popular thing is water from bottom to top or other When flowing the liquid heat medium, the pipes are divided by pipes so that the headers are arranged at the top and bottom to divide the pipes into a plurality of pipes.
Conventionally, it is restricted to materials that can be easily welded, and the welding cost and man-hours for making this contact are cumbersome and expensive as a product.

The most popular solar collectors have better anti-corrosion properties due to restrictions such as the fact that fins must be welded to the pipes and that the fins must be made of a material with high thermal conductivity. It was not possible to convert materials and materials to cheaper materials. As already mentioned, the cost of welding fins to the pipe, the cost of man-hours and the cost and man-hours of using headers were the factors that increased the price, and it is a big challenge to reduce them. Met. Furthermore, with regard to the header and pipe systems, the flow resistance of water or other liquid heat medium is increased, and the power consumption of the circulation pump is also high, and this reduction has been desired.

Means to solve the problem

In the invention according to claim 1, the corrugated sheet whose transverse section is wavy and whose longitudinal section is linear and whose longitudinal direction is the longitudinal direction enters between the upper and lower plate materials facing each other in parallel. There are nipples in the vicinity of at least two corners of a rectangular parallelepiped case that includes two plate-like material surfaces and has approximately six sides, and the length in the longitudinal direction of the corrugated sheet is longer than the length in the longitudinal direction of the inner surface of the rectangular parallelepiped case. It is a solar heat collector in which corrugated plates are arranged so that there are gaps without corrugated plates at both ends in the longitudinal direction inside the rectangular parallelepiped case.
By doing this, the gap without the corrugated plate at the bottom serves as a header, and water or other liquid heat medium that has entered from the nipple at the lower corner of the rectangular parallelepiped case is shunted between the corrugated plate and the upper and lower plates. It flows along the corrugated plate toward the other end in the longitudinal direction of the rectangular parallelepiped, and flows to the upper end, but this upper end is a gap with no corrugated plate like the lower end, so it is the same header as the lower portion. The flow is collected and flows out from the nipple in the upper corner.

Further, the invention according to claim 2 reinforces the upper and lower plates in place of the corrugated plate to divert the liquid flow in the longitudinal direction through the rectangular parallelepiped of claim 1, and a plurality of ribs in the longitudinal direction as both the upper and lower plates as a diversion guide. If the cross section perpendicular to the rectangular parallelepiped longitudinal direction is seen from the inner surface, the convex processing is extended in the longitudinal direction and flows between the upper and lower plates in the longitudinal direction. The effect of diverting water or other liquid heat medium and the strength of the upper and lower plates can be increased.
The convex portions of the upper and lower plates facing each other can be dimensioned so as to correspond to the other plate, and the upper and lower plates can be spot-welded or welded with seams or the like at the convex portions.
There are nipples in the vicinity of at least two corners of a substantially six-sided rectangular parallelepiped case containing upper and lower plate-like materials, and the length of the ribs and convex processing in the longitudinal direction is about 2 times the diameter of the nipple than the longitudinal length of the inner surface of the rectangular parallelepiped case. It is a solar collector that is doubled or shorter than that and is arranged so that there is a gap without ribs or protrusions at both ends in the longitudinal direction inside the rectangular parallelepiped case.
Since the invention of claim 2 is provided with ribs or convex processing instead of the corrugated plate of claim 1, the flow of water or other liquid heat medium is the same as the description of the invention of claim 1. It becomes.

  Further, as described in claim 3, the gap portion functioning as the inlet header in the lower portion, the portion functioning as the outlet header in the upper portion, and the diversion portion between them can be manufactured.

The invention's effect

With respect to the invention of claim 1, it is not necessary to use pipes other than nipples, the pipe group through which water or liquid heat medium flows can be eliminated, the pipes need not be welded to the heat collecting plate, and no header is required. Not only is it possible to reduce the man-hours that have increased costs, but pipes other than nipples can be abolished, increasing the freedom of material selection, improving material quality, such as material cost reduction, corrosion resistance, durability, weight reduction, design improvement, etc. It is also possible to improve the performance.

  Further, the invention of claim 2 is an object which improves the pressure resistance against the pressure of water or other liquid heat medium and eliminates the need to incorporate a corrugated plate. For the same reason, it can be expected to reduce material costs, man-hours, quality, and merchandise.

BEST MODE FOR CARRYING OUT THE INVENTION

DESCRIPTION OF THE PREFERRED EMBODIMENTS The best mode and embodiment for carrying out claims 1 and 2 of the present invention will be described below with reference to FIGS.
First, as for claim 1, the corrugated plate 3 shown in FIG. 2 is arranged at the position shown by the broken line in FIG. 1, and the longitudinal length of the corrugated plate is the upper plate 1 and the lower plate 2. The installation width of the lower nipple 4 or the upper nipple 9 is about twice or shorter than the longitudinal length of the inner surface of the rectangular parallelepiped composed of the including surface. The exit header function gap 8 is made in
The water heated by solar heat or other liquid heat medium enters from the lower nipple 4 of the solar heat collector of the present invention and flows into the lower header function gap 7. From this, it is heated by solar heat through the upper plate 1 or pushed by a pump attached to a circuit outside the solar heat collector, and rises by diverting a gap defined by the corrugated plate 3, the upper plate 1 and the lower plate 2. . They are collected and pushed in the upper header function gap 8 disposed above and discharged through the upper nipple 9. During this time, since the solar heat is heating the upper plate 1, water or other liquid heat medium in contact with the upper plate 1 on the back surface is heated by heat transfer.

According to claim 2 of the present invention, in manufacturing the rectangular parallelepiped of the solar heat collector casing, in manufacturing the upper plate, the lower plate, and the side plate, the two plates are cut and bent, and FIG. The drawings shown in FIG. 5, FIG. 6, and FIG. 8 that are slightly different from FIG. 1 in which the surrounding welding ribs 5 are formed by seam welding will be used in the following description. 3, 4, 5, and 7 are diagrams showing a shape in which the upper plate 1 and the lower plate 2 are processed into a plurality of strips so as to protrude toward the inner surface. In addition to increasing the strength, when water or other liquid heat medium flows through the inside, it serves to shunt the temperature distribution.
Protrusions that have been processed into multiple protrusions are processed so that they are about twice as long as the nipple mounting width or longer than the longitudinal length of the inner surface of the housing. The wide gaps at both ends in the longitudinal direction serve as headers. An inlet header function gap 7 and an outlet header function gap 8 are created.
The cross-sectional views shown in FIGS. 6 and 8 are such that the upper plate 1 side and the lower plate 2 side, which are processed to be convex toward the inner surface described above, are just in contact with each other and are spotted at the welded portion 6 shown in FIG. Flow of water or other liquid heat medium flowing from the lower nipple 4, which is an example of the case where the strength of the housing can be increased by seam welding or the like, and going out from the upper nipple 9 The function of the corrugated plate portion described in claim 1 described above is the same as that of a rib or a portion processed into a convex shape, and the description thereof is omitted because of the same flow.

According to claim 3 of the present invention, the inlet header function gap 7 in the above description is called the lower case 10 including the lower nipple 4, and the outlet header function gap 8 is called the upper case 11 including the upper nipple 9. This is an invention in which the shunt region is called the middle part and is manufactured separately and combined.

Industrial applicability

Explanation is omitted because it is self-evident

Schematic configuration plan view showing one embodiment of claim 1 of the solar heat collector of the present invention Sectional view of AA 'section shown in FIG. Schematic configuration plan view showing an embodiment of claim 2 of the solar heat collector of the present invention Schematic configuration side view showing one embodiment of claim 2 of the solar heat collector of the present invention Sectional view of the BB 'sectional example shown in FIG. Sectional view of the example different from FIG. 5 of the BB ′ section shown in FIG. Sectional view of CC 'section shown in FIG. Sectional view of an example different from FIG. 7 of the CC ′ section shown in FIG. Plan view of an embodiment of claim 3 of the present invention DD 'sectional view shown in FIG.

Explanation of symbols

1. Upper plate 2. Lower plate 3. Corrugated plate 4. Lower nipple 5. Welding ribs6. Welding surface 7. 7. Inlet header function gap 8. Outlet header function gap Upper nipple 10. Lower case 11. Upper case 12. Middle part

Claims (3)

Two corrugated sheets with a corrugated cross section and a straight longitudinal section and with the longitudinal direction as the longitudinal direction are placed on the top and bottom of another plate material facing each other in parallel. A rectangular parallelepiped case that has approximately six faces, and has nipples in the vicinity of at least two corners, and the longitudinal length of the corrugated sheet is about twice the longitudinal mounting length of the inner surface of the rectangular parallelepiped case. Alternatively, a solar collector that is shorter than that, and in which corrugated plates are arranged so that there is a gap without corrugated plates at both ends in the longitudinal direction inside the rectangular parallelepiped case. In order to divide the liquid flow in the longitudinal direction through the rectangular parallelepiped according to claim 1, upper and lower plates are reinforced in place of the corrugated plate, and a plurality of ribs in the longitudinal direction or a convex process in the longitudinal direction in the longitudinal direction as both the upper and lower plates as a diversion guide. If the cross section perpendicular to the rectangular parallelepiped longitudinal direction is seen from the inner surface, the convex processing is extended in the longitudinal direction, and the upper and lower plates are welded at the convex portion. And a nipple is provided in the vicinity of at least two corners of a substantially six-sided rectangular parallelepiped case containing upper and lower plate-shaped materials, and the length of the rib or convex processing in the longitudinal direction is longer than the length in the longitudinal direction of the inner surface of the rectangular parallelepiped case. A solar collector that is about twice as wide or shorter than the width, and is arranged so that there are no ribs or gaps without protrusions at both ends in the longitudinal direction inside the rectangular parallelepiped case. A sheet metal upper case with at least one nipple laterally and having a rectangular opening on the lower surface and a sheet metal lower case with at least one nipple laterally and having a rectangular opening on the upper surface; An intermediate part, which is a channel having a rectangular cross section, is connected to these two openings, and a corrugated plate is inserted in the intermediate part in order to divert fluid flowing from the lower case to the upper case via the intermediate part. Or the solar-heat collector comprised by what attached | subjected the multiple rib, the partition, or the convex process to the intermediate part inner surface in parallel from the bottom up.

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