JPS5849858A - Solar heat collector - Google Patents

Abstract

PURPOSE:To facilitate the change of direction of a mirror by a structure wherein a pivoting member equipped with magnetic members is pivoted onto the outer periphery of a glass tube so as to change the direction of the mirror equipped with magnetic members by means of the magnetic attraction acting between said magnetic members in the glass vacuum tube internal mirror focusing type solar heat collector. CONSTITUTION:A gutter-shaped concave mirror 7, at the marginal part 10 of which permanent magnets 11 are fixed, is pivotally supported onto a heat pipe 3 as its center shaft. A corrugated plate spring type elastic ring 13, on the outside surface of which permanent magnets 15 are fixed, is engaged onto the outer peripheral surface of the glass vacuum tube 2. Owing to the structure as described above, when the pivoting ring 13 is pivoted, the gutter-shaped concave mirror 7 is pivoted by being pulled with the pivoting ring 13 by means of the attraction acting between the permanent magnets 15 and 11 so as to change its direction. In such a manner as mentioned above, the control of the direction of the mirror 7 becomes easy.

Description

[Detailed Description of the Invention] This invention uses a vacuum glass tube type interior in which a heat collection pipe and a light collection structure 2- are arranged inside a vacuum glass tube. 0 Regarding the mirror concentrating solar heat collector, especially regarding the direction adjustment mechanism of the condensing beam. Conventionally, most of the concentrators of this type of vacuum glass tube type internal mirror solar heat collector were of fixed type.6 Nineteen. This is because if the sun tracking type is used, the cost of rounding up the tracking mechanism will be extremely high and maintenance will be difficult. However, it goes without saying that in order to improve heat collection efficiency and obtain high-temperature heat output, it is preferable to adjust the direction of the condensing mirror according to the sun, as in a solar tracking type.

This invention has been made in view of the above circumstances, and provides an improved vacuum glass tube internal mirror concentrator type solar heat collector that is improved so that the direction of the light beam can be easily adjusted using a small mechanism. It is something to do.

The present invention will now be described in detail based on embodiments shown in the figures.

Note that this invention is limited by this, and iI:t
do not have.

(1) shown in FIG. 1 is an embodiment of the solar heat collector of the present invention. A heat pipe (3) is inserted into the vacuum glass tube (2) as a heat collection tube, and the vacuum glass tube (2)
One end (4) of the heat pipe (3) extending upward is inserted into the heat medium circulation pipe (5). Also, as shown in Figure 2, the heat pipe (3) is connected to the heat collecting plate ((
).

Inside the vacuum glass tube (2), along with the heat pipe (3), a gutter-shaped concave surface i"y- (71) is inserted as a condenser. Board (8
), and the heat pipe (3) is inserted into the nine through hole (9), and the gutter-like concave surface roller (7) is inserted into the heat pipe (
It has a nine-piece structure that is fixed to the stem. Therefore, the trough-like concave mirror (2) is rotatable around the heat pipe (3) as the central axis. A permanent magnet shaft fin is fixed by adhesive as an inner magnetic member to the outside of the center portion in the longitudinal direction of the edge 00 (ml) of the round trough-like concave mirror (7).

An elastic ring (2) in the form of a corrugated leaf spring is fitted in the circumferential direction on the outer surface of the vacuum glass tube (2), and a rotating ring (O) is fitted on the outer peripheral surface of the elastic ring (2). Since the rotary cylinder has an elastic ring interposed between its inner peripheral surface and the outer peripheral surface of the vacuum glass tube t2J, it can be rotated in the direction when an external force is applied. If you apply an electric current to it, it will maintain its position without rotating freely.

A permanent magnet AS(2) is attached as an outer magnetic member to one part of the rotary ring corresponding to the permanent magnet aIa1 by adhesion. If the polarity of the outer peripheral surface of the permanent magnet II is 9, for example 1Wi, and the inward polarity is I@i, then the permanent magnet a! The inward polarity of ij (c) is NW
i, and the polarity of the outer surface is 8tM. Therefore, a magnetic attraction force acts between the permanent magnet (111 (11) and a5j (c)).

After all, in this solar heat collector (1), the rotating ring Ut
When the broom 2 is rotated appropriately as shown in Figure 1A), the trough-shaped concave mirror (7
) also rotates, and when rotating cylinder 0 is stopped, concave mirror 1
'a also stops at that position. In other words, the direction of the concave surface can be easily adjusted by the rotating cylinder 41 in accordance with the height of the sun. As shown in FIG. 6, the elastic ring and the rotary cylinder may be integrally carved. That is,
As a rotating member, a ring-shaped portion 13-1 with a slightly larger diameter is protruded from the outer circumferential surface of the vacuum glass tube at appropriate angle m intervals. It is also possible to use an elastic cinder-like member b& that is integrally formed with the protruding portions 2'7&... that come into contact with the.

Figures 3 and 4 show another embodiment of the solar heat collector of the present invention. The vacuum glass tube (2), the heat pipe (the wire, the trough-like concave mirror (7), etc. are the same as in the above embodiment) are given the same reference numbers.

Gutter-like [! ! At both ends of the one-sided tube (7), there are mounting disks (2) with a slightly smaller diameter (than the diameter of the vacuum glass tube (2)).
) is fixedly installed, and a concave mirror (7) is fixed to the heat pipe (with a trout inserted through it, this is K) through the through hole provided in the mounting disc 8. It's been done.

A permanent magnet A4 (Ten) (Incorporated) is fixed to the peripheral edge of the mounting circle 1Iia1 as a P11m magnetic member.

In front, the outer periphery of the vacuum glass tube (2) *KFi, in the shape of approximately C', is turned upside down at its tip with nine springs Ia.
A bending member 4 made of aluminum is elastically fitted.

The rotating member is a ferromagnetic material, and a permanent magnet ■A4
A magnetic force of attraction acts between the two. i9, elastically vacuum I
Since the Y-S tube (2) is held, it will rotate if an external force is applied to it, but it will maintain its position if no external force is applied to it. Therefore, as in the previous embodiment, when the co-moveable member (to) is rotated, the concave mirror (7) is also rotated (by the attractive magnetic force), and when it is stopped, the concave mirror (7) is also stopped at that position.

As can be understood from the above description, the solar heat collector of the present invention has a heat collecting pipe inserted into a vacuum glass tube and a light collecting pipe that is rotatable around the heat collecting pipe within the vacuum glass tube. A rotating member is provided around the outer circumferential surface of the vacuum glass tube so as to be able to rotate in the circumferential direction along the outer periphery WJK and elastically so as not to freely rotate. An outer magnetic member and an inner magnetic member are installed on each of the mirrors so as to exert an attractive magnetic force on each other, and are round.
By rotating the rotating member, the direction of the heat collecting mirror can be easily adjusted. Moreover, this configuration is simple and allows for increased suction and
It has the advantage of not being difficult to read.

Therefore, in actual use, the solar heat collector of the present invention is installed with the direction of the heat collection pipe in the east-west direction, and the orientation of the collector mirror is adjusted several times a year in accordance with seasonal changes in solar altitude. It is clear that this K improves heat collection efficiency compared to the conventional fixed type.

In addition, in the solar heat collector of this invention, at least one of the inner magnetic member and the outer magnetic member is a permanent magnet, and when only one is a permanent magnet, the other is a ferromagnetic material. The inner magnetic member may be directly fixed to the light condensing member, or may be indirectly fixed to the light condensing member through a support member. Furthermore, the rotating member itself may be an outer magnetic member.

[Brief explanation of the drawing]

Figure il1 is a perspective view of an embodiment of the thick liI heat collector of the present invention, including a partially exploded perspective view. FIG. 2 is a longitudinal sectional view of the solar heat collector shown in FIG. 1. 3 is a perspective view of a main part of another embodiment, FIG. 4 is a longitudinal sectional view of the same, and FIG. 5 is a view corresponding to FIG. 2 showing still another embodiment. +l)c! L1... Solar heat collector, (2)... Vacuum glass tube, (3)... Heat pipe, (7)... Gutter-shaped concave mirror, (8)... Mounting plate, 00.・Ayabe,
α1)4(2)...Permanent magnet s l'lJ...
Elastic ring, Gl...Rotating ring, [14)(c)・
...Rotating member, ...Mounting disk. Figure 4 21 Figure 5 7a 7a

Claims (1)

[Scope of Claims] 1. A heat collection pipe is inserted into the vacuum glass tube, and a light collector 2- is arranged so as to be rotatable around the heat collection pipe within the vacuum glass tube, and the outer peripheral surface of the vacuum glass tube is is provided with a rotating member that can rotate in the circumferential direction along its outer peripheral surface, and the outer magnetic member and the inner magnetic member are mutually attracted to the rotating member of the bottle and the light collector two to apply magnetic force to each other. 1. A solar heat collector, wherein the direction of the condensing mirror can be adjusted by rotating the rotating member. 1. The solar heat collector according to claim 1, wherein one of the outer magnetic member and the inner magnetic member is a permanent magnet, and the other is a ferromagnetic material. 8. The solar heat collector according to claim 1, wherein both the outer magnetic member and the inner magnetic member are permanent magnets. t. The solar heat collector according to any one of claims 1 to 3, wherein the inner magnetic member is fixed to the edge of the condensing shield so as to be in close contact with the inner surface of the vacuum glass tube. 5. The solar heat collector according to any one of claims 1 to 3, wherein the inner magnetic member is fixed to the peripheral edge of a mounting disk attached to the end of the collector. vessel. 1. The solar heat collector according to any one of claims 1 to 6, wherein the rotating member has a C-shape and is an elastic body. 7. The rotating member is a ring-shaped member with a slightly larger diameter (like a vacuum glass tube), and a circumferentially wavy elastic ring inserted into the gap between the inner peripheral surface of the ring-shaped member and the outer peripheral surface of the vacuum glass tube. Thick 1III/M! according to any one of claims 1 to 6 consisting of Heat collector. 8. The rotating member is integrally formed with a ring-shaped portion having a diameter slightly larger than that of the vacuum glass tube, and protruding portions that protrude from the inner circumferential surface of the ring-shaped portion at predetermined angular intervals and abut against the outer circumferential surface of the vacuum glass tube. The solar heat collector according to any one of items 1 to 5, in which the M range is made of an elastic ring-shaped member.