JPH0541902B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for receiving radiant heat from any heat source and transmitting it to water, and an apparatus for implementing this method, such as a method for collecting solar heat, and a method for implementing this method. related to the equipment.

Figures 1A, 1B, and 2A, 2B
The figure shows a specific example of a conventional heat collecting device that utilizes solar heat. In the example shown in Figures 1A and 1B, the water flows down the valley bottom 1 of the corrugated plate (Thomason method), and in Figures 2A and 2B, the water flows down the gutter 2, which is relatively narrow.
It flows down the bottom of the river. In the examples shown in FIGS. 1A and 1B, the peaks of the corrugated sheet correspond to fins, and the proportion of the exposed surface that does not come into contact with water is very large.
Furthermore, if the angle of inclination of the heat receiving plate is steep, there is a drawback that the water instantly flows down before the temperature is sufficiently raised. In the configuration shown in FIGS. 2A and 2B, the bottom 3 of the gutter 2
Water that flows down the gutter tends to converge and flow, so if the amount of water is small, the water does not spread over the entire bottom of the gutter, and the water tends to converge and meander along the bottom of the gutter. For this reason, this type of hot water sampling method requires a large amount of water, and if the amount of water is large, the heat capacity of the gutter plate will be insufficient and the temperature of the water will not rise sufficiently. As a result, a long gutter structure with a very long flow distance is required.
Furthermore, it has the inherent drawback that the conveying power is large.

SUMMARY OF THE INVENTION An object of the present invention is to provide a heat collection method and device that eliminates the drawbacks of the prior art described above.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 3 shows an example of a heat collection device for hot water collection. This heat collecting device consists of a heat receiving plate 4 facing the sun.
and a water spraying means 5 disposed above the heat receiving plate and spraying a relatively small amount of water onto the upper surface of the heat receiving plate.
and hot water sampling means 6 arranged below the heat receiving plate and collecting hot water flowing down the upper surface of the heat receiving plate.
It is equipped with The heat receiving plate 4 has a substantially flat surface, and a green 4a is formed on the side. As shown in FIG. 4, the heat receiving plate can be provided with reinforcing ribs 4b in the vertical direction of the heat receiving plate to provide rigidity so that the heat receiving plate does not deform.

In addition, the illustrated heat collecting device has another rectifying means 7 disposed at any intermediate position of the water flow path from the water sprinkling means 5 to the hot water sampling means 6 and in a direction crossing the water flow path. We are prepared. By providing the rectifying means in multiple stages in this manner, the flowing sewage that is converging can be diverted again.

Specific examples of the rectifying means are illustrated in FIGS. 5 to 9. In either example, the rectifying means 7
is equipped with a contactor 8 that comes into contact with the surface of the heat receiving plate. In the example shown in FIG. 5, the contact 8 is composed of equally spaced protrusions, and in the example shown in FIG. 6, the contact 8 is composed of elastically deformable whisker-like legs. 7th
The contact shown in the figure has a sawtooth shape with a pointed tip. In FIG. 8, a tapping screw screwed into the plate functions as a contact, and by adjusting this tapping screw, the distance between the plate and the heat receiving plate can be adjusted. FIG. 9 shows a contact made of water-permeable material such as cloth or felt. When these materials contain water, they come into close contact with the surface of the heat receiving plate due to the adhesive force of water. However, if this configuration is also viewed microscopically, the fibers function as contacts.

Among the rectifying means 7 having the above-mentioned configuration, those having the configurations shown in FIGS. 5, 7, and 8 preferably use an elastically deformable material for the plate, and the rectifying means 7 has a structure that is slightly compressed with respect to the heat receiving plate. It is best to install it in the correct condition. Any fixing method can be used. For example, the left and right ends of the plate can be fixed to the green 4a of the heat receiving plate. In this case, it is preferable to adopt the configuration 7a shown in FIG. 10 so that the angle of inclination of the plate and the level of the plate can be adjusted.

By configuring as described above, water discharged from the water sprinkling means 5 of the heat receiving plate 4 passes through a rectifying means disposed close to the water sprinkling means or a rectifying means provided at an intermediate position on the flow path. At this stage, the water encounters resistance from the contacts and is divided into small pieces to form a densely distributed flow. Furthermore, the fine columnar water flow exhibits behavior that spreads laterally. The heat held by the heat receiving plate is quickly transferred to the flowing water, allowing more efficient heat exchange than in conventional flowing-down type heat collectors. Therefore, although it is a flow-down type, it has the advantage that it can be configured with a short heat receiving plate, or that the shape of the heat receiving plate can be designed relatively freely.

The invention is not limited only to the embodiments described. For example, the configuration described above can be housed in a glass-covered casing.

[Brief explanation of the drawing]

Figures 1 and 2 are perspective explanatory views showing specific examples of conventional flowing-down type heat collectors; Figure 3 is perspective views showing an embodiment of the present invention; Figure 4 is a reinforcement of the heat receiving plate. An end view showing an example of a case where ribs are provided; FIGS. 5 to 9 are explanatory views showing various examples of changes to the rectifying means; FIG. 10 is an explanatory view showing an example of a structure for adjusting the rectifying means. It is. 4: heat receiving plate, 5: water sprinkling means, 6: hot water sampling means,
7: Rectifying means, 8: Contactor.

Claims (1)

[Claims] 1. A collection system in which a relatively small amount of water is flowed from an upper position to a lower position on the upper surface of a substantially flat heat-receiving plate, and the heat of the heat-receiving plate, which has risen in temperature due to radiant heat, is transferred to the water flowing down. In a thermal method, the discharged water is passed through a rectifying means consisting of a number of contacts placed in pressure contact with the surface of a heat receiving plate arranged in a direction transverse to the flow direction of the water, and the water passing through the rectifying means flows through the rectifying means. The flow velocity is reduced at the position of the contactor, the flow rate is controlled by the resistance during passage, and the flow is finely divided to form a densely distributed flow. A method for collecting radiant heat, which is characterized by finely dividing the flow again through another rectifying means placed downstream of the heat receiving plate, and forcibly forming a densely distributed flow that covers the entire surface of the heat receiving plate. 2. A flat heat-receiving plate facing the heat source; a water sprinkling means disposed above the heat-receiving plate for sprinkling water on the upper surface of the heat-receiving plate; a heat collection device having hot water collection means for collecting hot water flowing down, and further comprising at least one rectifier disposed on a downstream path of the effluent discharged from the water spraying means and transverse to the direction of flow of the water. 1. A radiant heat collector comprising a rectifying means and a plurality of contacts that press into contact with a heat receiving plate.