JPS58205056A - Method and device for obtaining hot-water utilizing radiant heat - Google Patents

Abstract

PURPOSE:To shorten a flow down distance and increase heat collecing efficiency by a method wherein a flow straightening means, consisting of a multitude of contact pieces, is arranged on the way of flowing down of water along the surface of a heat receiving plate orthogonally to the flow-down direction thereof in order to control the flow amount thereof and distribute the flow densely over the heat receiving plate. CONSTITUTION:A heat collecting device, consisting of a flat heat receiving plate located at the surface thereof, is provided with the flow rectifying means 7, equipped with the contact pieces 8 contacting with the surface of the heat receiving plate, between a water spraying means 5 and a water obtaining means 6. The contact piece 8 consists of protuberances arranged with equal intervals, elastically deformable brush-like legs, saw teeth, tapping screws, cloth or the like, which are water permeable materials. Accordingly, the water sprayed by the spraying means 5 receives a resistance by the contact pieces 8 during passing through the closely arranged water rectifying means 7 and is spread widthwisely into a thin layer or divided into fine streams to cover the whole surface of the heat receiving plate uniformly. Thus, the heat transmission may be effected quickly even when it is the flow down type and the length of the heat receiving mechanism may be shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a hot water extraction method for a heat exchanger that receives radiant heat from any heat source and transfers the heat to water, and an apparatus for carrying out this method, such as a method using solar heat. This relates to the hot water sampling method and the heat collection device used for this method.

Figures 1A-B and 2A-:s show specific examples of conventional heat collecting devices that utilize solar heat. In the example of Figure 1A-B, water flows down the valley bottom 1 of the corrugated plate (Thomason method)
, in FIGS. 2A-B, the water flows down the bottom 3 of the gutter 2, which has a relatively narrow width. In the example shown in Figures 1A-B, the peaks of the corrugated plate correspond to fins, so it is necessary to consider the relationship between fin efficiency and water volume. Further, if the angle of inclination of the heat receiving plate is large, there is a drawback that water flows down before the temperature is sufficiently raised. According to the configuration shown in Figures 2A-B, the water flowing down the bottom 3 of the gutter 2 tends to converge and flow, so if the amount of water is small, the water will not spread over the entire bottom of the gutter, and the water will flow down. It shows a tendency to converge and meander around 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 bridge plate will be insufficient and the temperature of the water will not rise sufficiently. Furthermore, if the inclination angle of the bridge board is large, the water will fall quickly and there will be drawbacks such as difficulty in sufficiently transmitting the heat held by the bridge board to the water. As a result, long gutter structures with very long flow distances are required.

SUMMARY OF THE INVENTION An object of the present invention is to provide a hot water sampling method and apparatus that eliminate the drawbacks of the prior art described above.

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

Figure 6 shows an example of a heat collection device for hot water collection. This heat collecting device includes a heat receiving plate 4 facing the sun, a water sprinkling means 5 disposed above the heat receiving plate for sprinkling water on the upper surface of the heat receiving plate, and a water spraying means 5 disposed below the heat receiving plate for receiving heat. It has hot water sampling means 6 for collecting hot water flowing down the upper surface of the plate. The heat receiving plate 4 has a flat surface. It is preferable to form edges 4a on the left and right sides of the heat receiving plate.

° The heat receiving plate does not need to be completely flat; as shown in FIG. 4, reinforcing lips 4b may be provided in the vertical direction of the heat receiving plate to provide rigidity so that the heat receiving plate does not deform.

The illustrated heat collecting device further includes the water sprinkling means 5 and the hot water sampling means 6.
It has a rectifying means 7 disposed at a position between and in a direction transverse to the heat receiving plate. Specific examples of this rectifying means are illustrated in FIGS. 5 to 9. In either example, the rectifying means 7 includes a contactor 8 that contacts 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.
It consists of elastically deformable whisker-like legs.

The contact shown in FIG. 7 has a sawtooth shape with a pointed tip. In FIG. 8, a double-ring 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 become in 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 configuration shown in the paper, those having the configuration shown in FIGS. 5, 7, and 8 are preferably made of an elastically deformable material for the plate, and are removed with some pressure applied to the heat receiving plate. It is better to attach it. Any fixing method can be used.

For example, the left and right ends of the plate can be fixed to the edge 4a of the heat receiving plate. In this case, it is preferable to adopt the configuration 7a shown in FIG. 10 so that the inclination angle of the plate and the level of the plate can be adjusted.

By configuring it as shown in the paper, the water sprinkling means 5 of the heat receiving plate 4 can be
The water discharged from the sprayer passes through a rectifying means arranged in close proximity to the water spraying means. At this stage, the water is subjected to resistance from the contact, and the columnar water passage exhibits behavior that spreads laterally. Due to this rectification effect, the flowing water that has passed through the rectification means spreads laterally in a thin layer or is finely divided, uniformly covering the entire surface of the heat receiving plate, and being densely distributed. Therefore, the heat held by the heat receiving plate is quickly transferred to the flowing water, and the conventional heat fin resistance can be almost ignored. Therefore, although it is a flow-down type, it has the advantage of being able to have a short heat-receiving configuration and allowing the shape of the heat-receiving plate to be designed relatively freely.

During actual construction, when the number of heat receiving plates increases,
It becomes difficult to control the amount of water discharged from the water sprinkler of each heat receiving plate to a constant level. However, according to the present invention, it is possible to adjust the rectifying means to suitably spread the water by visual observation from the outside, and there is an advantage that each heat collecting device can be adjusted according to the situation. . The structure is simple and the product price can be kept low.

The invention is not limited only to the embodiments shown in the paper. For example, a paper structure can be housed in a glass-covered casing.

[Brief explanation of drawings]

1 and 2 are perspective explanatory views showing an example of the prior art; FIG. 6 is a perspective view illustrating an embodiment of the present invention; FIG. 4 is a perspective view showing an example of the prior art;
An end view showing an example of a case where a reinforcing lip is provided on a heat receiving plate; FIGS. 5 to 9 are explanatory diagrams showing various examples of changes to the rectifying means; FIG. 10 is an example of a structure for adjusting the rectifying means. FIG. 4: Heat receiving plate. 5: Watering means. 6: Hot water sampling means. 7: Rectification means. 8: Contact. Patent applicant Takashi Takahashi (l) Engraving of the drawings (no changes to the contents) Da 26 shade
3. Relationship with the person making the amendment, including 9th applicant.

Claims (1)

[Scope of Claims] (1,1 Water is flowed from an upper position to a lower position on the upper surface of the heat receiving plate that receives radiant heat, and the heat of the heat receiving plate, which has been heated up by receiving the radiant heat, is transferred to the water on the way down, resulting in hot water. In a method for collecting hot water, flowing sewage is passed through a rectifier consisting of a large number of contacts arranged in a direction across the heat receiving plate in the middle of the flow, and the water passing through the rectifier has a flow rate controlled by the contactors. The water is spread thinly on the heat receiving plate surface by being controlled or the flow rate is reduced, or the water is finely divided at equal intervals, so that the water flowing down on the heat receiving plate covers the entire surface of the heat receiving plate or is densely distributed. A hot water sampling method characterized by: (2) a heat receiving plate directed toward the heat source; a water sprinkling means disposed above the heat receiving plate and sprinkling water on the upper surface of the heat receiving plate; and a water spraying means located below the heat receiving plate. a hot water collecting means for collecting hot water arranged and flowing down the upper surface of the heat receiving plate; and further located at a position between the water sprinkling means and the hot water collecting means,
A heat collecting device further comprising a rectifying means arranged in a direction transverse to the heat receiving plate, and the rectifying means including a plurality of contacts that come into contact with the heat receiving plate.