CN102089599A

CN102089599A - Trough collector for a solar power plant

Info

Publication number: CN102089599A
Application number: CN2009801270823A
Authority: CN
Inventors: A·佩德雷蒂
Original assignee: Ale Airlight Energy SA (ch)
Current assignee: Ale Airlight Energy SA (ch); Airlight Energy IP SA
Priority date: 2008-05-07
Filing date: 2009-05-06
Publication date: 2011-06-08
Also published as: ZA201100009B; EP2300753A1; CL2009001110A1; AU2009244021A1; EG26140A; CH698860A1; WO2009135330A1; IL209177A0; US20110100355A1

Abstract

The invention relates to a trough collector (1) for a solar power plant, comprising a mount (34) carrying a supporting structure (30), means disposed on the supporting structure (30) for providing heat originating from incident solar radiation, and a pivot device (40) that is fixed to the supporting structure (30) and is used to pivot the supporting structure (30) with respect to the mount (34), wherein the centroidal axis (36) of the supporting structure (30) equipped with the means for providing the heat is located outside the pivot axis of the supporting structure (30), and wherein the pivot device (40) is configured such that the centroidal axis (39) of the fully equipped supporting structure (30) is located in the region of a fixed pivot axis (35). In this way, a simple, cost-effective, and zero-backlash pivot drive for the trough collector is obtained.

Description

The slot type gatherer that is used for device of solar generating

Technical field

The present invention relates to a kind of slot type gatherer that is used for device of solar generating (Solarkraftwerk) of the preamble according to claim 1.

Background technology

From for a period of time, solar-powered thermal generating set has been close to price output (produzieren) electric current of the present general commercial price of the electric current of making in a usual manner with (photoelectric technology relatively) with commercial scale.

In solar-powered thermal generating set, solar radiation is reflected by concentrator by gatherer and focuses on pointedly on such position,, produces high temperature thus in this position that is.The heat that warp is concentrated can be transported and be used to move for example turbine of hot machine (thermischen Kraftmaschinen), and it drives the generator of making electric current again.

Use the device of solar generating that three kinds of citation forms are arranged at present: disc type Stirling system (Dish-Sterling-System), solar energy tower type generating set system (Solarturmkraftwerkssystem) and paraboloid trough type system (Parabolrinnensystem).

The paraboloid trough type TRT has a large amount of gatherers, it has the concentrator of the length that has less lateral dimension, therefore and do not have focus point but have focal line, this makes the paraboloid trough type TRT at its textural disc type Stirling TRT and solar energy tower type TRT of being different from all.The slot type gatherer has the length of 20m until 150m at present, and width can reach 3m, 5m and bigger.Stretching on focal line is useful on the suction line (Absorberleitung) of the heat (until about 400 ℃) through concentrating, and this suction line is transmitted (transportieren) to TRT with heat.Can consider fluid (for example for example deep fat or overheated steam) as transmission medium, it circulates in suction line.

Though the slot type gatherer preferably is configured to the paraboloid trough type gatherer, be configured to slot type gatherer spherical or that only be similar to paraboloidal concentrator but often use to have, only make reasonably to expend hardly on the bigger therefore economy because have the accurate parabolic formula concentrator of above-mentioned size.

At the common power that produces about 350MW of 9 SEGS slot type TRTs of Southern California; Another TRT in the state of Nevada will be incorporated into the power networks at present (ans Netz gehen) and power above 60MW.Another example of slot type TRT is the Andasol 1 in the construction of being in the Andalusia, and it has 510000m ²Concentrator area and 50MW power, wherein, the temperature in suction line will reach about 400 ℃.The pipe-line system that is used for the circulation of heat-transfer fluid can reach until the length of 100km or more at such TRT, if realize about the notion of following main facilities.The cost of Andasol 1 is estimated billions of Euros.

Rough estimate as can be known, the increasing share of totle drilling cost (at present for example 65% or more) is shared the slot type gatherer and is used to transmit the pipe-line system of the fluid of heat in such device of solar generating.

The slot type gatherer of mentioned type is configured to swing, thereby in the situation of north and south orientation (Ausrichtung), can follow the position of sun of every day, or in the situation of thing orientation, can follow seasonal position of sun (yet have every day equally but less position of sun change).At this, very important for the high efficiency of TRT towards the accurate orientation of current position of sun.The error of 3.5mrad (that is to say 0.2 °) is counted as rational tolerable limit value at present on orientation; Can estimate at this,, require to become stricter in view of the technology of development.

In view of the high weight of gatherer especially in the situation of large-size (seeing above), often must make swinging driver expensively.

Be known that the supporting construction that is used to be configured to paraboloidal or spherical slot type concentrator must surround this slot type concentrator with the form of clip (Klammer) from behind, so that make the face of reflection of the orientation sun of its front keep free fully.This promptly causes being used for the expensive structure of the supporting and the motion of concentrator, and it then is expensive in the time must using lightweight construction sometimes extraly.

At this, not only between high weight and kinematic accuracy, be optimized, but also consider, gatherer allows owing to motion or orientation or is out of shape by the wind effect equally.Though distortion itself is structurally generally no problem in the situation of such structure, yet efficient is had negative effect, because distortion is increased in the error on the orientation.

Most desirably, gatherer is followed position of sun constantly, yet gatherer is often readjusted (nachgerichtet) step by step for simplicity.

For this for example means for the position of sun orientation (conforming to the north and south orientation of gatherer) of every day, (sun has at first fallen behind the error that allows in concrete orientation 3.5mrad=0.4 ° the time when position of sun changes 2 times, accurately be positioned on the gatherer then and taken the lead the error that allows then), then readjust gatherer.This means that per 69.12 seconds of gatherer is readjusted with the precision of needs.Obvious at this, adjusting motion (Richtbewegung) must accurately that is to say and not expect to carry out correction motion after adjustment is finished.

Similarly, in the situation of the thing of gatherer orientation, position of sun changed the error amount greater than permission in one day, thereby made repeatedly to readjust gatherer every day.

Summary of the invention

Correspondingly the objective of the invention is, create a kind of for the improved slot type gatherer of orientation movement (Ausrichtbewegung).

In order to realize this purpose, slot type gatherer according to the present invention has the feature of claim 1.

Although still be in by the asymmetric basically structure of the center of gravity line that makes the assembly 2 that to swing (this structure is the double team concentrator from behind) in the zone of axis of oscillation of fixed-site this moment, the confining force that is used to guarantee each position of assembly 2 on whole wobble area is constant, and this allows to be provided with the swinging driver through simplifying.In addition, power essential for orientation movement self is reduced on the frictional force at this moment, and is constant therefore, and this has opened up the approach that leads to continuous orientation movement.Therefore the efficient of this positive impact gatherer, this gatherer can be enduringly and no longer by phased manner, be orientated towards the sun best.

In a kind of preferred form of implementation, the bearing of this assembly is arranged to respect to the center of gravity line symmetry.The confining force that is used to guarantee each swing position of assembly 2 thus is lowered to minimum degree (that is the weight of assembly 2) equally and is constant.Assembly 2 is static in each position, thereby makes and be used to guarantee that the confining force of each position is optional on whole wobble area.Consequently to the structure of assembly self and to swinging driver require lessly, this swinging driver can correspondingly be designed for essential accurate movement simply.

On the whole, except supporting construction constructional simplification, realize improved efficient by possible continuous realization towards the orientation of the sun is same.

By in another form of implementation of slot type gatherer according to the present invention, using the counterweight (Gegengewicht) that acts on assembly 2, so that the position of center of gravity line is taken in the zone of axis of oscillation by the Mass Distribution that changes, then Chang Gui structure (making amendment according to the present invention) can obtain using.Therefore renovation (Nachr ü stungen) is possible equally, and this can cause significant cost advantage in the situation of existing TRT.In another modified form of implementation,, then can save (einsparen) dead weight (Totgewicht) if the quality of swinging driver is so arranged (that is, it satisfies the function of counterweight).

Description of drawings

Below, the invention will be further described by figure.

Wherein:

Fig. 1 has schematically shown the slot type gatherer of known type,

Fig. 2 has shown the cross section of the slot type gatherer that passes Fig. 1,

Fig. 3 has shown the view according to first kind of form of implementation of slot type gatherer of the present invention,

Fig. 4 has shown the view according to second kind of form of implementation of slot type gatherer of the present invention,

Fig. 5 has shown the section AA of the supporting construction of passing Fig. 3.

The specific embodiment

Fig. 1 has shown the view of slot type gatherer 1 known in the prior art, and assembly 2 and the bearing 3 that is used to provide from the heat of insolation is provided this slot type gatherer 1, and assembly 2 is placed on this bearing 3.Such gatherer 1 can have above-mentioned size (for example length of 150m) or even also surpass this size, in the situation of big like this size the weight of assembly 2 be in easily 10 and 20t between.

Assembly 2 comprises the framework 4 that is used for pressure chamber (Druckzelle) 5, and this pressure chamber 5 is made of flexible film (Membran) 6 at least in part itself, and the arch portion of the matt-like of this film 6 is represented by boost line 7.Preferably, framework 4 (comprising bearing 3) is implemented by concrete, this at the scene (especially in the current zone of difficulty) bring advantage at manufacture view cheaply.

The structure that is clamped to the pressure chamber 5 in the assembly 2 is for example done nearly step explanation in Fig. 2, the heat that is obtained by sunshine is by transporting and be used to produce electric current device of solar generating from gatherer 1 for the pipeline network that makes the succinct and unshowned routine of figure.

Bearing 3 (herein constituting) supporting component 2 by pillar (St ü tzen) 8 and footing (F ü ssen) 9, wherein, locate partial fixing the latter swing mechanism 10 is arranged, this swing mechanism 10 has crooked swing arch portion (Verschwenkb ü gel) 11 at this, by bearing 3 swings relatively of these swing arch portion 11 frameworks 4 (that is to say assembly 2), be orientated according to position of sun until it.

Such assembly is known to those skilled in the art, for example from file WO 2008/0037108, or from top mentioned device of solar generating, in particular in view of the swinging driver of prior art.

Assembly shown in Fig. 1 is the example of prior art; Application of the present invention is not limited to the slot type gatherer (have pressure chamber herein, this pressure chamber is equipped with secondary concentrator) of shown type.Similarly, any suitable support (Fachwerk) can be arranged for and hold this concentrator, and this concentrator can be made of metal equally.

Fig. 2 has shown the cross section of the slot type gatherer that passes Fig. 1, as it at length shown in the Swiss Patent application documents CH 2008/0462.

Pressure chamber 5 is clamped in the framework 4 and is made of flexible film to small part, promptly constitutes by clear films 21 for solar radiation 20 and by the film 23 that is coated with reflecting layer 22 herein, and it forms the concentrator 24 of slot type gatherer 1 together.By secondary concentrator 25, solar radiation 20 is reflected onto suction line 26, and this suction line 26 is transported the heat of solar radiation 20 in known manner.

The assembly that is used to provide from the heat of insolation is provided pressure chamber 5 (having concentrator 24, secondary concentrator 25 and suction line 26 in particular).

Yet obviously, mentioned be used for providing assembly 2 to be included in all things that concrete situation is used for mentioned purpose from the heat of insolation, no matter this be conventional, be presented to the concentrator, the different structure that is used to hang concentrator that constitute by metal in the framework 4, be used for the different system of suction line or other such element, it is such that for example it is structured in each the slot type gatherer that is used for specific device of solar generating.Except the parts of bearing, relate to following equipment, that is, and the center of gravity of the parts that its common decision can be swung (that is to say the assembly 2 of slot type gatherer 1) or the position of center of gravity line.

By this figure as seen, swinging driver 12 (for example be made of the roller 13 that drives, it passes swing arch portion 11 betwixt) be suitable for making concentrator 24 flatly/swing between the approximately perpendicular position.The center of gravity that is provided with the assembly 2 of the device that is used for providing heat is in outside the axis of oscillation of moment of assembly 2 (or only be positioned at randomly according to the geometry of swing mechanism 10 moment axis of oscillation) in each swing position at the structure of such routine.As a result, however swinging driver 12 according to swing position by supporting construction 2 be used to provide device common of heat to remain on load time enduringly with varying in weight, and correspondingly must intricately construct.

Fig. 3 has shown the cross section that passes according to the slot type gatherer 70 constructed according to the invention of first kind of form of implementation.Show and be used to provide from the assembly 71 of the heat of insolation and be used for the device 72 of bearing assembly 71 swingably.

In order to make the succinct pressure chamber 5 that has concentrator 24, secondary concentrator 25 and absorption tube 26 that only schematically shows of this figure.This pressure chamber is arranged in longeron 75, between 76 and by its clamping (aufgespannt),

longeron

75,76 are placed in lateral strut (Querverstrebungen) 77 again, on 78, this lateral strut 77,78 carries out the transition to the support lug 79 of the section 79 ' that has circular arc gradually, this support lug 79 itself is placed on the

support

80,81.

Therefore, support lug 79 distolateral each be connected with a

longeron

75,76, thereby make

longeron

75,76 and therefore concentrator 24 can swing around axis of oscillation 88 by the motion of support lug 79.

The section 79 ' of circular arc is arranged to perpendicular to the axis of oscillation 84 of assembly 2 and outstanding downwards.

Support

80,81 is constructed (having

roller

82,83 herein) with suitable manner, thereby makes support lug 79 to rotate in

support

80,81, support 80,81 swings that assembly 2 is operatively static relatively as a whole thus.In order to make this figure succinctly leave out swinging driver; Swinging driver can be made of motor, and this motor affacts on the gear ring (Zahnkranz) that is arranged in section 79 ' and locates by

pinion.Support

80,81 is anchored on again on the pedestal (Fundament) 85, that is to say that relative ground 86 is static.The matched of pedestal 85 is in the desired wobble area of gatherer 70.Minimum height h so comes to determine, that is, longeron 75,76 (perhaps assembly 2 be in outermost element) still has desired distance with respect to ground 86 in the situation of the swing of maximum.

Owing to the geometry that illustrates of assembly 2 (the especially section 79 ' of the circular arc of support lug 79), obtain the fixing axis of oscillation 88 of assembly 2, this axis of oscillation 88 stretches through the center of curvature 85 of the section 79 ' of circular arc.

The center of gravity line 89 of the assembly 2 of longitudinal extension is given by its Mass Distribution, this Mass Distribution depends on different parts (pressure chamber 5, the longeron 75 of assembly 2 again, 76, design lateral strut 77,78 or the like) and also depend on the length of radius of curvature 90 in particular.Now, the mode that the length of radius of curvature 90 can be associated with mentioned element is come so to determine that promptly, axis of oscillation 84 is in the zone of center of gravity line 89 by those skilled in the art.

Though mentioned parameter influences mutually, come so pointedly to determine that promptly, in the zone of its sd so, center of gravity line 89 is in this zone based on common structure demand according to the position of axiom axis of oscillation 88.Axis of oscillation 88 is followed center of gravity line 89.

In other words, following according to the present invention in this form of implementation is possible,, according to its function design component 2 best, and must not consider the position of center of gravity line 89 in concrete situation that is.So, axis of oscillation 88 can be simply suitable dimensions by support lug 79 be placed in the zone of center of gravity line 89.

The use of support lug 79 makes the following possibility that becomes, promptly, axis of oscillation 88 advantageously is arranged in the zone of pressure chamber 5, this only just can be implemented under the situation that huge structure expends or even can not realize owing to wait to be arranged in the bearing in the axis of oscillation in the structure of routine.

This produces following structure, this be configured in expend, cost and the weight aspect is optimised and can be orientated accurately simultaneously.

Preferably, axis of oscillation 88 is consistent with center of gravity line 89, thereby makes that advantage according to the present invention realizes (for example be used for the constant confining force of assembly 2, the power that is used for orientation movement is reduced to frictional force) best.If axis of oscillation 88 and center of gravity line 89 are inconsistent, then this can be owing to the reason of describing explicitly with Fig. 5 (wind effect, other boundary condition) and takes place.So, those skilled in the art for example determine as illustrating explicitly with Fig. 5 because the axis of oscillation 88 that wind load or other on-the-spot factor that occurs produce and the spacing range (Distanzbereich) of center of gravity line 89.

As by this figure as seen, vertical plane 91 (its centroidal line 89 that stretches) that the line of

support

80,81 corresponding points shows is configured to

symmetry.Support

80,81 is under the center of gravity line 89, and with respect to center of gravity line 89 symmetries.Possible single support vertically is arranged under the center of gravity line 89, and a plurality of rack arrangement are under center of gravity line 89 and with respect to center of gravity line 89 symmetries.Therefore, the confining force that is used for assembly 2 is reduced to its weight; Because the moment of eccentric bearing no longer occurs.

As mentioned above such, the slot type gatherer has huge length.Therefore, the structure of the support of assembly 2 (yet not necessarily pressure chamber 5) has modular structure in category of the present invention.Preferably, these modules have the identical basic structure of the support lug (this support lug is associated with at least one support then) that the longeron that has each two for example 10m length of relatively putting and relative longeron vertically arrange.Correspondingly, the weight of each module supports by its support lug, the structure that this allows the support of simplified assembly 2 because it can support by support lug at the desired position place, that is to say that the weight in view of slot type gatherer 70 must not have bigger rigidity.Even when distolateral module opposite position module inside must be modified according to the character of things, all modules advantageously also had identical basic structure haply.

Fig. 4 has shown the view according to another preferred form of implementation of slot type gatherer 100 of the present invention.The assembly 30 that is used to provide from the heat of insolation is provided, its have the

beam framework

31,31 of two-piece type ', for example the concentrator of the clamped or conventional metal of pressure chamber 5 (Fig. 2) can be mounted therein.Such pressure chamber or such concentrator and other being used to provide each device of heat succinctly to be left out in order to make this figure; It has conventional basically character and can be limited at concrete application by those skilled in the art.

Beam framework 31,31 ' is placed on a plurality of lateral strut 32, and this lateral strut 32 belongs to supporting construction 30 and its recessed shape is on purpose determined, to be used to hold paraboloidal or spherical concentrator or pressure chamber 5.Lateral strut 32 oscillation bearings 33 by pillar 34 own are bearing in this place.Therefore, all oscillation bearings 33 are static and determine common by the fixing axis of oscillation 35 shown in the chain-dotted line.This axis of oscillation (to be configured to precondition) is under the concentrator.

Each lateral strut 32 has center of gravity 37 with beam framework 31,31 ' with its part that is associated.Obviously, the center of gravity line that illustrates by a dotted line 36 is because the structure of the necessarily spill of lateral strut 32 can not be consistent with axis of oscillation 35, but must be in oscillation bearing 33 tops.The device arrangements that provides heat when being used to according to the rules is on assembly 30 time, and this is more suitable.

When the parts that are associated with assembly 30 of swing mechanism 40 (Fig. 5) were arranged in assembly 30 places equally, assembly 30 was just fully assembled.So, these parts are because its weight similarly influences the position (under the present case mainly due to the case 38 (Fig. 4) that is used for chain 44) of center of gravity line.

In other words, case 38 so serves as the counterweight that is used for balanced component 30 herein, that is, make its center of gravity line 36 be in the zone of axis of oscillation 35 and preferably consistent with it.

Therefore, than first kind of preferred form of implementation according to Fig. 3, center of gravity line 36 is brought in the zone of axis of oscillation 35; Center of gravity line 36 is followed axis of oscillation 35.This principle can be used for renovating existing structure equally and realizes according to advantage of the present invention.

Fig. 5 has at length shown the swing mechanism 40 that is used for assembly 30 by the cross section of passing the lateral strut 32 that has attached case 38.Lateral strut 32, beam framework 31,31 ' and case 38 are built into box-like, and it cuts the wall 41,41 ' (beam framework 31,31 ') that illustrates in the figure open, and 42 (lateral strut 32) and 43 (cases 37) illustrate with hacures.Also show the swing element that preferably is configured to chain 44 (Verschwenkglied) of swing mechanism 40, it is with two end 45,45 ' fixed position (Befestigungsstelle) 46 by being placed on axis of oscillation 36 side direction, 46 ' acts on supporting construction 30 places or is fixed on supporting construction 30 places, and its relative oscillation bearing 33 can be swung.On the supporting surface 47 that chain 44 stretches with being placed in arcuation, and be tensioned by regulating wheel 48.Two driving wheels 49,50 relative to each other on the direction of the arrow 51,52 that draws by prestrain, consequently, the swing position of supporting construction 2 limits in gapless mode (spielfrei) on whole wobble area.Roller 48,49,50 are bearing in the pillar 34, and therefore do not belong to the parts that are arranged in assembly 30 places of swing mechanism 40.As the alternative of the use of chain 44, for example gear ring is feasible, and it drives by the gear fixing at pillar 34 places so.

The swing of assembly 30 is by two driving wheels 49,50 the synchronous actuator that is arranged on equally in the pillar 34 (that is to say common bearing place in supporting construction 30) is realized clockwise or counterclockwise, wherein, preferably correspondingly keep prestrain with arrow 51,52.The CD-ROM drive motor and the pre-load mechanism (arrow 5l, 52) that are used for driving wheel 49,50 are succinctly left out in order to make this accompanying drawing, and can be determined corresponding to prior art in concrete situation by those skilled in the art.

Case 38 surrounds chain 44 and protects its influence of avoiding weather and pollution, equally partly protects the other element of swing mechanism 40, as long as these elements are not by pillar 34 protections.Basically, case 38 has otch 53 in the outside of its spill, and this otch 53 allows case 38 relative driving wheel 49,50 swings.Otch 53 can be easily device by routine seal, its reserve be used for roller 49,50 corresponding to the displaceable opening of swing position.

Swing is being feasible on this degree on the principle, that is, and and until fixed position 46,46 ' run into driving wheel 49,50.If supporting construction 30 is swung on a side haply until vertically, then driving wheel 49,50 can correspondingly be offset towards opposite side in pillar 34.

At this moment, utilize less consumption and minimum cost to be achieved as follows, that is, the quality of case 37 so determines and arranges, that is, the center of gravity line 39 of Zhuan Pei assembly 30 and axis of oscillation 35 are consistent or be in the zone of fixing axis of oscillation 35 fully.

Certainly, gapless driving itself (that is to say the Mass Distribution of not considering on case) shown above can be applicable in the form of implementation according to Fig. 3 equally.

As mentioned above like that, when be useful on device that heat is provided and this external tilting mechanism 40 remain to be arranged in assembly 30 places element when operatively being arranged on the assembly 30, assembly 30 fully assembles.

The quality of case 38 depends on the distribution of its material and material.Same as mentioned above supporting construction 30 is made by concrete in the preferred embodiment that illustrates like that, and case 38 is so same, its wall is made with such thickness this moment, that is, this thickness causes that the center of gravity line 39 of Zhuan Pei supporting construction 30 is consistent with axis of oscillation 35 fully.Yet those skilled in the art not only can correspondingly select wall thickness, and fully so change the geometry of case 38,, realize that under the situation of the function according to the rules of keeping swing mechanism 40 desired quality distributes that is.Then, using the material that has Different Weight is feasible equally.In other words, those skilled in the art design swing mechanism 40 in view of the position of the concrete structure consideration center of gravity line 36 of slot type gatherer, especially its case 38.

Center of gravity line 39 this moment can be on the meaning of best solution consistent with axis of oscillation 35 or equally " only " be arranged in the zone of axis of oscillation 35.Do following understanding in qualitative less deviation, that is, though effective according to advantage of the present invention, the less comparatively speaking sustained stress of having a mind to (Dauerbeanspruchung) of swing mechanism 40 kept.Therefore, for example in order seamlessly to keep swing mechanism 40 (in the situation that tooth bar uses as swing element) by one-sided load, or in order to trigger a swaying direction of supporting construction 2,30 and to pass through its another swaying direction of its weight activated haply by driving haply.Perhaps normally, though those skilled in the art realized according to advantage of the present invention in view of another constructional optimization, yet avoided accurate covering on the geometry of the center of gravity line 39 of the supporting construction 2,30 of assembling fully and axis of oscillation 35.

Yet center of gravity line 39 is arranged in another not consistent with it in the zone of axis of oscillation 35 reason can be understood by the power that produces on the supporting construction under the situation of wind effect.Though can the following is starting point in principle, that is, occur such power hardly owing to finish the shape of symmetry of the supporting construction of assembling.Yet on the one hand axis of oscillation 35 is often eccentric a little with respect to supporting construction, and the concrete structure, the deformability of the pressure chamber 5 that is made of flexible film or the like of supporting construction cause (possible moment) flow pattern on the other hand This causes that sizable force action is on the supporting construction of assembling fully.Thus, those skilled in the art can limit predetermined wind effect, no matter this is as the real wind-force of maximum or as the standard value of maximum permission, and derive and affact making a concerted effort on the supporting construction (may approx) thus.So, the center of gravity line 39 of Zhuan Pei supporting construction 2,30 is arranged to be up to following degree away from supporting axis 35 fully, that is, supporting construction 2,30 keeps balance under the effect owing to the oscillatory forces that produces under the situation of making a concerted effort of predetermined wind effect.In other words, so in the situation lower support structure of calm effect to a certain extent in one-sided " suspension " in bearing, and under the situation of predetermined wind effect, be balanced.According to the design in concrete condition, those skilled in the art can be chosen in the spacing between center of gravity line 39 and the axis of oscillation 35 equally in the scope of the zero extremely distance of described maximum.

In another form of implementation, supporting construction is provided with following device extraly, and it changes by the wind effect and affacts power on the supporting construction.Thus, the power that produces by the wind effect can reduce or similarly be affected aspect its direction, and this causes the improved design of supporting construction individually or with measure described above in combination.Such device can be configured to be arranged in the spoiler or all kinds of wind air deflector (Windabweiser) at supporting construction place, perhaps is molded over the supporting construction place or is molded in its place (the therefore for example moulding of determining with flow technique by frame parts or other surface).Preferably, these device arrangements become movable, thereby make that these devices can be brought into play its effect equally when wind during from different directive effect.

This idea is equally applicable to form of implementation shown in Fig. 3 on the whole.

Shown assembly makes and to be used for the continuous swing of concentrator or to be used for becoming possibility with the gapless swinging driver of the swing of discrete step form, wherein, so only overcome the static friction in oscillation bearing, however therefore simply and high-precision driving simultaneously cheaply available.

Claims

1. what slot type gatherer that is used for device of solar generating, this slot type gatherer had for orientation a position of sun swing relatively is used to provide the assembly from the heat of insolation (2,30,71), and has and be used for described assembly (2; The device (40 of the supporting of swinging 30,71); 79 ', 81,82), it is characterized in that the axis of oscillation (36,88) of described assembly (2,30,71) is arranged to fixed-site basically and described axis of oscillation (36,88) and is positioned in the zone of center of gravity line (39,89) of the described assembly of swinging (2,30,71).

2. slot type gatherer according to claim 1, it is characterized in that, described device has the static support (80 of at least one described relatively ground, 81), described assembly (71) is placed on the described support (80,81) swingably, and wherein, single support vertically is arranged under the described center of gravity line (91), a plurality of rack arrangement under described center of gravity line (91) and with respect to described center of gravity line (91) be arranged to the symmetry.

3. slot type gatherer according to claim 1 and 2, it is characterized in that, described device has at least one outstanding support lug (79) that is arranged in the described assembly section place, that have circular arc (79 ') perpendicular to described axis of oscillation (88) downwards, the described assembly of section (79 ') (71) by described circular arc operatively is placed in the static support (80 of described relatively ground swingably, 81) on, and wherein, the center of curvature of the section of described circular arc (85) is arranged in the zone of described center of gravity line.

4. slot type gatherer according to claim 3, it is characterized in that described assembly (71) has longeron (75,76), at described longeron (75,76) be furnished with concentrator (24) between, and wherein, described at least one support lug (79 ') distolateral each with a longeron (75,76) so be connected, that is, make described longeron (75,76) and therefore described concentrator (24) can swing around described axis of oscillation (88) by the motion of described support lug (79).

5. according to claim 3 and 4 described slot type gatherers, it is characterized in that, be used to provide the structure construction of support of the assembly that is furnished with described concentrator (24) therein (71) of heat to become module, and wherein, described module has roughly the same basic structure, respectively have two longerons of putting relatively that are used to hold described concentrator (24) (75,76) and perpendicular to described longeron (75,76) support lug of Bu Zhiing (79), and wherein, each support lug (79) is associated with at least one support.

6. according to each described slot type gatherer in the claim 1 to 5, it is characterized in that described center of gravity line (89) is consistent with described axis of oscillation (88).

7. slot type gatherer according to claim 1, it is characterized in that, being used to support described being used to of swinging provides the device of assembly of heat so to have the counterweight that described assembly is worked, that is, make its center of gravity line (36) be in the zone of described axis of oscillation (35).

8. slot type gatherer according to claim 7 is characterized in that, described axis of oscillation (35) is positioned under the concentrator that operatively clamps.

9. slot type gatherer according to claim 7 is characterized in that, described counterweight structure becomes to be used for the case of swing element, can swing by the described assembly of described swing element.

10. slot type gatherer according to claim 9 is characterized in that, described swing element is constructed, preferably is configured to gear ring and particularly preferably is configured to chain with flexible way.

11. slot type gatherer according to claim 1, it is characterized in that be used to provide the device of heat to have pressure chamber (5), described pressure chamber (5) comprises described concentrator, and wherein said pressure chamber is clamped between the longeron, and described longeron is the part that is used to provide the assembly of heat.

12. slot type gatherer according to claim 1 is characterized in that, the described assembly (2 of assembling fully, 30,71) center of gravity line (39,89) stretches away from described axis of oscillation (35,88), be up to such degree, that is, the oscillatory forces that affacts on the described supporting construction of predetermined wind effect makes described assembly (2,30,71) described relatively axis of oscillation (35,88) keeps balance.

13., it is characterized in that described assembly (2,30,71) has the device that is used to change the power on it that affacts owing to the wind effect according to each described slot type gatherer in the aforementioned claim.

14. slot type gatherer according to claim 12 is characterized in that, is used to change device owing to the power of wind effect effect and has and preferably be arranged in the liquid that described assembly (2,30,71) is located, for example spoiler and/or wind air deflector movingly.

15., it is characterized in that described device is molded in the described assembly (2,30,71) or is molded into described assembly (2,30,71) and locates according to claim 12 or 13 described slot type gatherers.