JPS61502140A - solar energy plant - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] solar energy plant [Industrial application field] The present invention relates to solar energy technology, in particular to solar energy plants. Ru.

[Prior art and problems]

Solar energy consisting of a stationary solar radiation receiver or concentrator and an edge ostact ・Plant (Soviet inventor's certificate No. 14, No. 253, /De417./PC, 7F) /da J310) are known in the prior art. The heliostact is These are mounted on rotary mounts that can rotate about mutually perpendicular axes. one of the axes of is arranged along the axis of the concentrator (solar radiation receiver). Heliosta The shaft rotates on the axis of the mount and rotates on its axis during the day, no matter what the position of the sun is in the sky. Reflects positive radiation in a specific direction. However, the design of this rotation mount allows these axes to cannot guarantee a regular rotational speed of the heliostat around the axis of the heliostat. child The rotational speed of the angular velocity tends to fluctuate rapidly over time, and such fluctuations in angular velocity The result is a jerky movement of the lip ostact on the rotating mount. Therefore, the edge The ostact structure is subjected to dynamic loads, and the sun's rays reflected from the edge ostact mirrors are collected. There is a tendency to move with respect to the geometric center of the optical device (the geometric center of the solar radiation receiver) K. fart Due to the dynamic loads that the heliotact is subjected to, a stronger support structure and a stronger heliotact are required. A stat drive motor is required. Transfer of reflected solar rays to the geometric center of the receiver energy decreases the performance of solar energy plants.

In addition, a solar radiation receiver and hemi-osu set on a metal frame driven into the ground. Solar energy plants including tact are known (French Patent No. 17 ! (See No. 393, IPCFs Gob., 1944.)

The solar tracking mechanism of this edge ostact is based on the geographical latitude of the solar energy φ plant location. including a drive shaft set at an angle ψ equal to . Each drive shaft is equal to the rotational speed of the earth It rotates at a new constant speed ω=ts0/hour. The drive shaft is pivoted to the link via a lever mechanism. one end of this link has a lip ostact mirror fixed at right angles; The end can move longitudinally along the guide member and can also rotate. The guide member is a lever. The lever is fixed to one end of the lever, and the other end of the lever is pivoted to the drive shaft. Actually said The lever is one side of an isosceles triangle with the apex at the pivot point with the drive shaft. The bottom of the shape is a link with a mirror attached to it. The other side of this isosceles triangle is the lever. , one end of which is pivotally connected to the drive shaft, and the other end is pivotally connected to a link to which the mirror is fixed. . In this isosceles triangle, its − side is the sun reflected from the hemiostact mirror. The other side is oriented to match the direction of the ray of light, and the other side is oriented with respect to the sun's rays entering the reflector. parallel.

The base of the isosceles triangle is the link that fixes the reflector, and the edge is inserted onto the ostact mirror. The second magnitude of the angle between the incoming solar rays and the solar rays reflected by this mirror onto the receiver. It is a branch line. The lever parallel to the incoming solar rays changes the solar inclination corresponding to the time of the year. It is equipped with a device that can introduce corrections. Said Heliostact Sun Tracking Due to the insufficient strength of the structure, the design of the mechanism is limited to Only reflectors can be used (J, D, Walton.

S, H, Bomar, N, F: 1. Bowlus, 4 (θθ Tomoma High Temperature Solar Test/7A Silitei, ANS person LDO, mull, l? t/).

Furthermore, as a result of the reflector being fixed at right angles on the link, it is exposed to sunlight during the day. On the other hand, more reflective mirror area is required. Due to the above-mentioned drawbacks, this kind of edge The range of applications of the ostact is limited, and it is a powerful tool that requires high-precision solar tracking. cannot be used in solar energy plants such as solar furnaces. .

[Summary of the invention]

It is an object of the present invention that the dynamic structure of the solar tracking mechanism enables high altitude tracking and Minimize the reflector area required to irradiate solar radiation receivers between Solar energy that makes it possible to correct solar ray refraction - Heliostaku for plants The purpose is to provide the following information.

According to the present invention, a solar radiation receiver and a solar tact equipped with a solar tracking mechanism are combined. Therefore, the drive shaft of the above mechanism is placed at a constant angle with respect to the earth's surface, and this angle is Solar energy plan equal to the geographic latitude of the positive energy plant location In this case, the heliostat is mounted on a rotating mount, which It consists of λ axes arranged at right angles to each other, and the main axis is the light reflected from the hemiostact mirror. Set in the direction of the line, the sun tracking mechanism is pivoted to the telescopic boom pointing in the direction of the sun. one end of the rigid link carries the edge ostact. The slider set in the guide member fixed on the frame The axis of the shaft intersects the axis of the main shaft of the rotary mount at this point. , a solar energy Φ plan characterized in that the telescoping boom is pivotally attached to the drive shaft. provided.

To enable the refraction of the sun's rays, the sun tracking mechanism uses a rotary mount with the axis of the drive shaft. coaxial with the main axis of the rotary mount at the point where it intersects the axis of the main axis of the mount. the driven shaft is movable along the axis of the main shaft; The length of the rigid link should be adjustable.

The use of the invention is necessary for solar radiation receivers during the daytime operating period of a solar plant. This minimizes the total reflector area and increases the reflective area of a single edge ostact. to reduce the number of heliostacts required to reach a certain heat output. It can give you the possibility to reduce the Kinematics of the heliostat solar tracking mechanism This makes it possible to track the sun blindly when it is hidden behind clouds.

Brief description of the drawing Hereinafter, specific embodiments of the present invention will be described in more detail with reference to the drawings. .

In the accompanying drawings, FIG. 1 is a schematic diagram of a solar energy plant according to the present invention; FIG. 2 is a structural diagram of a solar tracking mechanism according to the present invention, and FIG. 3 is a diagram of a refraction correction device according to the present invention. FIG. 7 is an axial projection of the solar plant according to the invention.

〔Example〕

The solar energy plant according to the invention comprises a solar radiation receiver (concentrator) This heliostat consists of mutually perpendicularly arranged U axes. It is mounted on a rotary mount 3. The main shaft is a radiation receiver/helio It coincides with the line 6 connecting the geometric axis with Staratko. The other axis! is on this spindle It is set perpendicular to the

The sun tracking mechanism includes a drive shaft 7, a rigid link g, and a telescoping boom pivotally connected to these. Consists of de. One end of the rigid link l is pivotally connected to the drive shaft 7 at a point A; The axis of the main shaft≠ intersects the axis of the drive shaft 7. The other end of the rigid link t is , placed in a guide member fixed on the supporting 7 frame// The end of the slider 10K is connected to the outer end of the slider 10K.

The drive shaft 7 can be rotated synchronously to track the visible movement of the sun.

The length L of the rigid link t is such that the axis of the main shaft DA intersects the axis of the shaft 5 of the rotation mount 3. It is equal to the distance S between points B and A. The nesting type boomer has a drive shaft and a rigid link S. It is pivoted to.

If the solar tracking mechanism is equipped with a refraction corrector /j (Fig. 2), the rigid link t is , at point A, on the driven shaft /l located coaxially with the main shaft da of the rotary mount J. It is pivoted. The drive shaft 7 is rigidly adjusted by a rotary joint 1. It is pivotally connected to link g.

The refractive correction device/3 (FIG. 3) includes a hinge 16 by which the till The link g is pivotally connected to the driven shaft /l and moves along this driven shaft /'l. I can do that. In addition, this refraction correction device is used to adjust the length of the rigid link g. The mechanism 17 for moving the hinge l& and the nested link/slot is provided.

The drive shaft 7 of the solar tracking mechanism (see Figure 1) is aligned with the Earth's surface. It is set to an angle ψ equal to the latitude of the location. Rigid link j and line AB connect point A The apex forms an acute angle. made according to the present invention for the surface of the edge ostact λ The solar energy φ plant operated as follows.

At the beginning of the working day, the rigid link l (Fig. 1) changes the length of the nested boom de. It is set according to the slope of the sun. The rigid link at this point is It is directed towards the sun. The drive shaft 7 is 1 The rotation starts at a constant angular velocity ω at 57 o'clock. Rigid link t rotates by drive shaft along the guide member fixed on the frame of the hem. slider IO moves. The movement of the slider lθ causes the heliostar to move. It is rotated around the axes DA and S of the mount 3. , as a result, heliostrat Ko forms a compound motion around point 8 as the center of rotation, connecting the geometric center of Taratoko. It remains as the bisector of the acute angle formed by the line AB and the rigid link S.

Therefore, the sun's rays reflected from Heliostaratko's reflector are inside the solar disk. It remains in the plane passing through the heart and line 6, and is oriented along line O.

When the sun's height is less than 300 degrees, refraction has a sufficient effect on solar tracking accuracy. be able to. A device /j ( Figure 2) is deployed. mechanism/? By rotating the handle (Fig. 3), Hinge/6 can be moved to some extent along line 6 (FIG. 1). at the same time 1 interval and S are equal, and the angle between the front position of the rigid link and its folding position is K to be equal to the maximum refraction on a particular day.

I can do that.

The rotation of the drive shaft is controlled by a rigid lever via a telescopic boom deformer and a rotary joint 11 (Fig. 2). This link, g, rotates with the driven shaft/da. the result, The slider /θ (FIG. 1) moves along the guide member ll. −・Riostatco The reflecting surface of makes a complex motion with respect to the center of rotation at point BK.

After 5K, the sun tracking mechanism is equipped with a driven shaft, and is linked to this driven shaft. The rotational movement is transmitted from the drive shaft 7 through the rigid link I. When K is transmitted, the structure becomes even stronger.

Considering such refraction correction and the strengthening of the mechanical structure of the solar tracking mechanism, it is possible to Positive tracking becomes more accurate.

The refracting surface of Heriostaratoko rotates with respect to the intersection of 2@da and 3 of mount 3. Accordingly, the refractive surface is projected onto the ostact surface at the beginning and end of the working day. Therefore, it coincides with the semi-major axis of the ellipse formed. This allows solar plant working days of the edges required to irradiate the solar radiation receiver in total (Ostara) J. Mirror area can be minimized.

industrial use The present invention can be used in a high-temperature solar furnace 5, for example, in a solar power generator having a tower structure. Can be done.

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Claims (2)

[Claims] 1. A solar radiation receiver (1) and a heliostat (2) equipped with a solar tracking mechanism. In addition, the drive shaft (7) of the above-mentioned mechanism is arranged at an angle (α) with respect to the earth plane. The angle of solar energy is equal to the geographic latitude of the solar energy brand's location. - In Brandt, the heliostat (2) is mounted on a rotating mount (3) This mount (3) consists of two axes (4 and 5) arranged at right angles to each other, The principal axis (4) is set in the direction of the rays reflected from the heliostat mirror and is used for solar tracking. The mechanism consists of a rigid link (8) pivoted to a telescoping boom (9) pointing towards the sun. ), one end of said rigid link (8) is connected to the supporting frame of the heliostat (2). a slider (10) set in a guide member (11) fixed on the arm (12); is pivotally connected to the heliostat (2) by, to which said rigid link (8) The other end is pivotally connected to the drive shaft (7) at point (A), at which point the shaft (7) The axis intersects the axis of the main shaft (4) of the rotary mount (3) and the telescoping pool (9) is a solar energy blunt, characterized in that it is pivotally mounted on a drive shaft (7). 2. In the solar tracking mechanism, the axis of the drive shaft (7) is the main axis (4) of the rotary mount (3). Coaxially with the main axis (4) of the rotary mount (3) at the point (A) where it intersects the axis of A driven shaft (14) is arranged, the driven shaft (14) being an axis of the main shaft (4). It can be moved along a line and the length (L) of the rigid link (8) is adjustable. A solar energy blunt according to claim 1, characterized in that: