CN2354078Y

CN2354078Y - Composite curved-face light-collecting solar collector

Info

Publication number: CN2354078Y
Application number: CN98242671U
Authority: CN
Inventors: 朱建乐
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-11-13
Filing date: 1998-11-13
Publication date: 1999-12-15
Anticipated expiration: 2008-11-13

Abstract

The utility model discloses a composite curved face light collecting solar collector. A solar energy reflection mirror face is made into a single hook shape or is made into a symmetrical double hook shape or a bowl shape. The upper section of the mirror face forms a parabola, and the lower section of the mirror face forms a circular arc line. A heat absorbing member is placed on the top of the end head of the curved hook part of the mirror face. As the utility model adopts the composite curved face reflection mirror face, a solar ray tracker does not need matching, and high water temperature and a lot of light energy can be obtained; the collector can be processed to be very small, the heat insulation measure can be carried out conveniently, and the large scale production can be carried out conveniently, and the maintenance is easy.

Description

The compound curved surface concentrating solar energy collector

The utility model relates to a kind of solar collector.

Existing composite parabolic light-concentrating solar heat-collection device (China Patent No.: 94220461.1) have certain optically focused effect, also do not need sun tracker, but complex structure, the acceptance angle of light is very little, and the height of heat collector is higher.And the concentrator monomer of a plurality of flute profile composite parabolics will be set in housing, and this monomer can't single use, then complex structure and huge.

And Chinese patent 93109062.8 described solar energy collector with non-motion tracking function are that columniform endothermic tube is placed on the tangent position of arc reflector circular arc collection face, reach the purpose of exempting to absorb for a long time solar energy.But when sunshine is the strongest, sunshine front illuminated heat collector, be that the diameter line of sunray and arc reflector is when perpendicular, except that the light of mid portion is reflected on the heat absorption pipe, there is being the considerable part mirror reversal that is reflected to be mapped to outside the heat absorption pipe near the light at speculum place, its spotlight effect and not exclusively is being described.And the high-effective concentration type solar thermal collector of Chinese patent 94222142.7 indications, adopt two reverse involutes of heat absorption pipe to make speculum, surpass 3.1416 times with the light gathering of double involute speculum is maximum as calculated, so also limited its usage range.

The purpose of this utility model is to adopt in order to obtain maximum light gathering with the compound speculum of parabola and circular arc line to constitute the high-efficiency concentration solar gatherer.

The utility model is to implement like this:

The solar energy reflection minute surface is made singly hook-shaped, symmetrical double-hook type minute surface and incited somebody to action the singly bowl-shape minute surface of 360 ° of formation of hook-shaped rotation.

The epimere of single hook-shaped minute surface is a baseline with the parabola of the incidence angle θ of sunray, and the hypomere of minute surface to collude bent portions be that the intersection point D that the circumferential edge of straight horizontal radial line and the heat absorption pipe circular section of heat absorption pipe circular section intersects is the center of circle, with the straight vertical radial line of heat absorption pipe circular section and the intersection point C of heat absorption pipe circular section circumferential edge, obtaining DC is radius, and one section circular arc line of gained is a baseline.Parabola is connected with circular arc line promptly becomes the minute surface baseline of single hook-shaped compound curved surface speculum.

Making a vertical line L of horizontal line vertically by the C point, is axle with the L line, divides the hook-shaped compound curved surface baseline of list of the symmetry that forms to the axis both sides, promptly is the minute surface baseline of double-hook type compound curved surface speculum.

With the L axle is axis, is 360 ° of radius rotations with single hook-shaped composite curve with L axle to the horizontal range of single hook-shaped compound curved surface baseline, the minute surface baseline of the bowl-shape speculum that can form.

Adopt single hook-shaped mirror surface and double-hook type mirror surface, on the end points C place of the intersection point C place of two compound curved surface baselines or single hook-shaped compound curved surface baseline hook part, heat absorbing member is set and all can obtains maximum heat absorption, extinction ability.This is because sunray can carry out in this kind gatherer once and secondary reflection, finally reaches the purpose of convergence, and realizes optically focused and the unification of following the tracks of sunray at any time.

In like manner, the bowl-shape mirror surface that forms after adopting single hook-shaped mirror surface baseline to rotate 360 °, still on the end points C place of the intersection point C place of two compound curved surface baselines or single hook-shaped compound curved surface baseline hook part heat absorbing member is set, then this heat absorbing member can be obtained heat absorption, the extinction ability of maximum.If this heat absorbing member spheroid is as kitchen range, solar cell.Then, finally reach the purpose of convergence in this kind gatherer, and realize optically focused and the unification of following the tracks of sunray at any time because sunray can carry out once and secondary reflection.

Adopt the solar collector of compound curved surface mirror surface of the present utility model, the sunray tracker be can need not equally, and can higher water temperature or maximum luminous energy be obtained from the motion tracking sunray, can process solar collector very little, then be convenient to adopt effective insulation measure.Also be convenient to large-scale production, also for ease of maintenaince.

Below with reference to accompanying drawings the compound curved surface concentrating solar energy collector of the utility model indication is done detailed elaboration.

Accompanying drawing 1 is the structural representation of the double-hook type gatherer of compound curved surface concentrating solar energy collector;

Accompanying drawing 2 is structural representations of the hook-shaped gatherer of list of compound curved surface concentrating solar energy collector;

Accompanying drawing 3 is light reflection schematic diagrames of the double-hook type gatherer of compound curved surface concentrating solar energy collector;

The solar energy reflection minute surface can be made into single hook-shaped and symmetrical double-hook type minute surface and three kinds of single hook-shaped bowl-shape minute surfaces.

With reference to accompanying drawing 2:

The epimere of single hook-shaped minute surface 3 is a baseline with the parabola AB of the incidence angle θ of sunray, and the hypomere of minute surface 3 to collude bent portions BC be that the intersection point D that the circumferential edge of straight horizontal radial line and the heat absorption pipe circular section of heat absorption pipe circular section 2 intersects is the center of circle, with the intersection point C of straight vertical radial line L with heat absorption pipe circular section circumferential edge, getting DC is radius, one section circular arc line RC of gained.Be connected with the circular arc line BC baseline of the minute surface 3 that promptly becomes single hook-shaped compound curved surface speculum AB, BC of parabola AB.Wherein the AB section is focal distance f=BF, and incidence angle is the parabola of θ; And the BC section is to be the center of circle with D, and DC is one section circular arc line BC of radius.

With reference to accompanying drawing 1:

Making a vertical line L of horizontal line vertically by the C point, is axle with the L line, divides the hook-shaped compound curved surface baseline of list AB, BC, B ' C, the A ' B ' of the symmetry that forms to the axis both sides, promptly is the baseline of the minute surface 1 of double-hook type compound curved surface speculum.Wherein D, D ' are the diameter of heat absorption pipe circular section 2, F, F ' are for being the parabola focus of focal length with BF, B ' F ', AA ' injects aperture of a mirror for light, B, B ' are parabolical initial point, Y, Y ' are the longitudinal axis of parabolic AB, A ' B ', longitudinal axis AB, A ' B ' are tangent with heat absorption pipe circular section 2, and the point of contact is F, F '.

Make a vertical line L of horizontal line vertically by the C point, with the L line is axle, with L axle to the distance of single hook-shaped composite curve is radius, the bowl-shape compound curved surface speculum of 360 ° of formation of rotation, and the longitudinal section of this bowl-shape compound curved surface reflector body is identical with shown in the accompanying drawing 1 also.

With reference to accompanying drawing 3:

Adopt single hook-shaped mirror surface 3 and double-hook type mirror surface 1, bowl-shape mirror surface, on the end points C place of the intersection point C place of two compound curved surface baselines 1 or single hook-shaped compound curved surface 3 baseline hook parts, heat absorption pipe 2 is set, or the endothermic tube of other shape, spherical photo-thermal absorber all can be obtained extinction, the heat absorption capacity of maximum.This is because sunray can carry out in this kind gatherer once and secondary reflection, finally reaches the purpose of convergence, and realizes optically focused and the unification of following the tracks of sunray at any time.

Adopt the solar collector of compound curved surface mirror surface of the present utility model, can obtain higher water temperature, more luminous energy, and can process solar collector very little, be more convenient for adopting effective insulation measure, also be convenient to large-scale production, also for ease of maintenaince.

Claims

1, the compound curved surface concentrating solar energy collector is made of speculum, endothermic tube, it is characterized in that

The epimere of its single hook-shaped minute surface (3) is a baseline with the parabola AB of the incidence angle 8 of sunray, and the hypomere of minute surface (3) to collude bent portions BC be that the intersection point D that the circumferential edge of straight horizontal radial line and the circular section of heat absorption pipe of heat absorption pipe circular section (2) intersects is the center of circle, with the straight vertical radial line of heat absorption pipe circular section (2) and the intersection point C of heat absorption pipe circular section (2) circumferential edge, getting DC is radius, and one section circular arc line of gained is a baseline.

2, compound curved surface concentrating solar energy collector according to claim 1 is characterized in that

Making a vertical line L of horizontal line vertically by the C point, is axle with the L line, divides the hook-shaped compound curved surface of list (3) baseline AB, BC, B ' C, the A ' B ' of the symmetry that forms to the axis both sides, promptly is the minute surface baseline of double-hook type compound curved surface speculum (1).

3, compound curved surface concentrating solar energy collector according to claim 1, it is characterized in that making a vertical line L of horizontal line vertically by the C point, is axle with the L line, is radius with L axle to the distance of single hook-shaped composite curve, rotate 360 °, then form bowl-shape compound curved surface speculum.

4, compound curved surface concentrating solar energy collector according to claim 1 is characterized in that placing the shape of the solar energy heat absorbing spare above the C point of compound curved surface speculum, is tubulose, spherical.