CN101171463A

CN101171463A - Solar collector element

Info

Publication number: CN101171463A
Application number: CNA2006800159933A
Authority: CN
Inventors: T·阿森
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-12
Filing date: 2006-05-10
Publication date: 2008-04-30
Also published as: EP1880148A1; WO2006121345A1; US20080149095A1; NO20076417L; NO20052339D0; AU2006244747A1; NO20052339L; EP1880148A4

Abstract

A solar collector element comprises a wooden frame (3) having longitudinal frame members (5) and cross members (6, 7) which are fastened to a back panel (4). The insulating material (8) is inserted in the frame between the cross members. Located on top of the cross members (6, 7) and the insulating material (8) is a pipe coil (10) which has a plurality of lengths of pipe (11) that run substantially horizontally at a small angle to each other, and each is provided with a heat-absorbing aluminium plate (12, 13) which, with one (14) of its longitudinal edge portions, surrounds the respective length of pipe (11). The outward side of the framework (3) is covered by a panel, preferably a corrugated panel (20) of polycarbonate. When using solar collectors (1) for dwelling houses, several such solar collector elements are placed adjacent to each other and connected in series, optionally so as to cover most of the height of the roof between the gutter and the ridge. In such cases, all the solar collector elements are covered by a single large panel (2) in order to provide an outer roof which has no joins that could leak and off which snow can easily slide. The solar collector elements will be easy to handle and mount, and they will be able to provide a large, efficient and reliable solar collector surface at relatively modest costs.

Description

Solar collector element

Technical field

The present invention relates to a kind of daylight or solar collector element, it comprises that a plurality of thermophores cycle through pipeline section wherein, and pipeline section contacts with the thermal-arrest metallic plate, and the thermal-arrest metallic plate absorbs solar energy and it is passed to described pipeline section and reaches the wherein thermophore of circulation.The invention still further relates to a kind of daylight or solar collector that is used for pitched roof, it comprises this solar collector element.

Background technology

In order to satisfy the growing energy demand in the world, it is necessary utilizing solar energy.Solar collector technology is known by people in Europe, but owing to too high of price is applied in limited scope.The country of weather cold for example Norway require the area of solar collector bigger, heat storage box also must be big in addition.People generally feel it is that price is high and unreliable to solar collector technology.

Solar collector price height on the continental market, but quality is good.Usually, install 1 on the house to 4m ²Solar collector, it generally only is used for heating water for domestic use.Employed heat storage box can hold 50 to 300 liters.High relatively price makes solar collector technology attractive not even so in Norway, and this is because the outdoor temperature in winter is low and have an accumulated snow problem.The big equipment that enough produces required output quantity that gets also will weigh unworthily.

Above mentioned solar collector element is for example known from JP57006261.In the document, pipeline section extends in parallel between inlet manifold and outlet manifold.Pipeline section relatively closely puts together, and all pipeline sections all contact with same metallic plate, and described metallic plate is provided with the groove of the part outer surface that surrounds pipe.Parallel connected mode means in the different pipe sections of solar collector and trends towards having different current that this has reduced output quantity.Pipeline section is welded on the manifold usually, and this makes that connection is very consuming time and may have potential leakage point.Especially in large equipment, have the frost damage problem, the equipment of this means can not drain water wherein fully.This just meaned in winter must use antifreezing agent, has increased the financial cost of operation and the danger of pollution thus.

Summary of the invention

The purpose of this invention is to provide a kind of solar collector, it makes in colder area also can be practical and utilize solar energy economically.The manufacturing cost that this means described solar collector must be low, must be able to utilize heat that winter, low-intensity sunlight produced, must be able to bear the gland of snow, and should be fit to domestic heat.

According to the present invention, these performances are realized by the solar collector element of the above-mentioned type, it is characterized in that: under the mounted state of described element, the pipeline section substantial horizontal is arranged, pipeline section is one another in series, and panel or sheet material that the major part of element is made by the plastic material of substantial transparent cover.

Because the pipeline section series connection, so compare the pipeline section parallel connection, water is bigger with contacting of heating surface when cycling through solar collector element.Even this means when winter sunlight is inadequate and the greasy weather also can be utilized the quite little temperature difference between solar energy collecting space in the element and the recirculated water.In addition, directed the making of pipeline section substantial horizontal can utilize them to come the outer cover plate in the zone between the support solar collector element strong point, and the wherein said strong point is that solar collector element is installed in the strong point on the rafter on following roof.

The invention still further relates to a kind of solar collector that is used for pitched roof, it comprises above-mentioned solar collector element.Described solar collector is characterised in that: a plurality of elements are placed adjacent one another, so that cover the major part of whole roof height from gutter to ridge, the pipeline section series connection of described element, and described element is by single plastic front board or sheet material, be preferably the Merlon corrugated-sheet paneling and cover, metallic plate supports plastic front board or sheet material at least in part in their pipeline section zones separately.

Described solar collector element also can be installed on facade or the ground, and can become arbitrarily angled with horizontal plane.

Description of drawings

Many favorable characteristics of the present invention can from dependent claims and below obtain the description to the exemplary embodiments that is shown in accompanying drawing, wherein:

Fig. 1 is the perspective view that is provided with according to the roof of solar collector of the present invention;

Fig. 2 is the perspective view according to the framework of solar collector element of the present invention;

Fig. 3 shows the framework among the Fig. 1 that is provided with pipeline section and metallic plate;

Fig. 4 shows the element among the Fig. 3 that has the pipeline section that is fixed and metallic plate;

Fig. 5 shows the element among the Fig. 4 that is fully assembled;

Fig. 6 shows and is used for metallic plate of the present invention;

Fig. 7 shows along the amplifier section of the section of Fig. 5 center line VII-VII intercepting; And

Fig. 8 shows to shown in Figure 7 similar but be the section along Fig. 5 center line VIII-VIII intercepting;

Fig. 9 shows second embodiment of metallic plate.

The specific embodiment

Fig. 1 shows two part pitched roofs according to solar collector 1 of the present invention is housed.Solar collector extends to its ridge from the gutter in house, and about length is 6 meters in illustrative example.Solar collector 1 comprises 10 solar collector elements, and the form of solar collector element will be described below, and described solar collector element is placed adjacent one another, and their pipeline is cascaded.Described element is covered by single panel 2, and single panel 2 preferably is made of so-called Merlon corrugated-sheet paneling.This panel can have been bought on market, has the standard size of 210 * 600cm, and comprises along the air channel of panel longitudinal extension.The thickness of these panels has nothing in common with each other, and has been found that the thick panel of 6mm is favourable for the present invention seeks to.Because the existence of air channel, described panel has the good insulation performance performance, and can be slightly crooked and can not break.These panels are widely used in the greenhouse in addition, and therefore can be easily to have bought at a low price.

Solar collector element according to the present invention will be described in detail with reference to figure 2-6 below.Fig. 2 shows gummed and follows closely wood frame 3 on the plate 4 in the back, and rear board 4 for example can be made of sub-roof (sub-roof) panel of standard.By using timber, for example Norway spruce can avoid expansion issues, the expansion issues that occurs in the aluminium matter solar collector shell of standard easily when for example those temperature difference in solar collector become big.In solar collector according to the present invention, this temperature difference may be up to 200 ℃.

Framework 3 has longitudinal framing member 5 and cross member 6, and the centre-to-centre spacing between the cross member 6 is 60cm, and is therefore corresponding with the centre-to-centre spacing that is installed in the rafter in the pitched roof usually.Therefore framework 3 can be positioned to cross member 6 be positioned at rafter directly over and support by rafter.Insulating materials S places in the space between cross member 6 and the inner end piece 7.

Fig. 3 shows coil pipe 10 framework afterwards that comprises four pipeline sections 11 is installed, and each pipeline section all is installed on thermal-arrest aluminium sheet 12 or 13.The profile of these plates is shown in Fig. 6.Fig. 7 and 8 shows their cross sections in one

embodiment.Plate

12,13 has longitudinal edge portion 14, described edge part 14 with greater than 180 ° cornerite around separately pipeline section 11 bendings.In this embodiment, longitudinal edge portion 14 has the extension 15 that the plane with

metallic plate

12,13 extends back substantially parallelly, and is provided with the sweep 16 adjacent with its free end, to make things convenient for the installation of

plate

12,13 on pipeline section 11.

Fig. 9 shows second embodiment of plate 12,13.Basic identical among its profile and Fig. 6, but opposite in the bending direction of the longitudinal edge portion 14 in this example and the foregoing description.

Plate

12,13 is fastened on the framework 3 by single screw (not shown), thereby makes that they can be simultaneously to both direction free wxpansion.

Owing to be difficult to obtain long enough allowing to make with single pipe the aluminum pipe of coil pipe 10, so coil pipe 10 is preferably laid by two same parts of connection in shown in Figure 3 regional 17 and forms.This joint is can be easily low and can bear the mechanical stress that may relate to and the radiator hose of temperature is made with radical valence lattice.This root radiator hose is used for described coil pipe end when also can be in the coil pipe end connecting with adjacent solar collector element.Range averaging in the coil pipe 10 between the pipeline section 11 is approximately 15cm.The width that this means

absorber plate

12,13 is close, and therefore the unit length of every pipeline section 11 has big relatively sorbent surface.Have the appropriate location that the

plate

12,13 of coil pipe 10 also is maintained in the framework 3 by

mounting bar

18,19, as shown in Figure 4.

Plate

12,13 was sprayed the unglazed priming paint of black before or after fixing with

bar

18,19.

At last, described element 3-19 is provided with cover plate 20, is preferably the Merlon corrugated-sheet paneling, and cover plate 20 is clamped in the appropriate location by securing member 21 and 22.Securing member 22 is the connection housing department 23 of cover framework 3 also.The solar collector element that comprises parts 3-23 illustrates as independent component in this application.Certainly it also can use separately in the few relatively application of institute's calorific requirement, but the mutual usually next-door neighbour of described in practice solar collector element places and the streamwise series connection connected mode as shown in fig. 1.In these examples, cover plate 20 will replace with the continuous panel 2 that covers all solar collector elements.In roof was as shown in Figure 1 installed, this panel 2 had level and smooth surface, does not have the crack or the seam of possibility seepage rainwater, and this smooth surface will help to avenge landing easily.If snow sticks on the panel 2, the following of it can be heated slightly, and formation antifriction water layer below avenging so just makes the snow can landing.Therefore described solar collector can guarantee there is not accumulated snow whole winter with simple mode.Because it has big but the low relatively area of manufacturing cost, even make it also can provide sufficient heat supplement at the fine day of cold.Because cover plate 2 is installed on the

bar

18,19 that is positioned at coil pipe 10 and absorber plate 12 tops, so panel will be bent downwardly slightly in the centre, so that lean against on the bend 14 of plate 12,13.Pipe 11 and plate bend 14 have very large bending rigidity, and can bear sizable shearing force in the zone of being supported by framework cross member 6, so the load-bearing of cover plate 2 is more much bigger than any contingent snow load.Because solar collector 1 seals outside and has necessary strength, therefore can be installed on the rafter, without any need for the dynatron roof of further increase cost.What can see is that the pipeline section 11 in the coil pipe 10 is each other in a low-angle.This means that pipeline section has little gradient, this mean again conversely if described equipment in the winter time the time inoperative, the water in as shown in Figure 1 the solar collector 1 can drain fully, thereby prevents frost damage.Two solar collector 1 multiple operations shown in Figure 1 have been found that the discharge of every square metre of solar collector surface per minute is suitable in 1 liter of scope.

It should be understood that to the invention is not restricted to above-mentioned one exemplary embodiment, those skilled in the art can change in the scope of following claim and revise.Therefore, for example, coil pipe 10 can be made up of single pipeline section, perhaps is made up of four pipeline sections of an end bending.These pipeline sections can use suitable connector subsequently, and for example a flexible pipe is connected with adjacent tubular segments.In addition, can only use one type heat absorption metallic plate to replace two mutual inverted plates 12,13.If only use wherein plate, every other plate must be mounted to and extend end 15 outward, and then it must be configured to free end and can not damage cover plate 2,20.After panel was installed on the pipeline section 11, end 15 selectively curved inwardly.Although have been found that organic ring glass corrugated-sheet paneling because have the good insulation performance effect and size big but still that carry easily is provided, and help, it should be understood that also and can use many other materials as the cover plate material.If the mechanical resistance demand allows, also can use flexible material for example glass fibre enhancing fabric or plastic plate.The length and the width that it should also be understood that solar collector element can change, to adapt to the standard size of other building modules or contained assembly.

Claims

1. a solar collector element (3-23), comprise that a plurality of thermophores cycle through pipeline section (11) wherein and the thermophore that circulates in pipeline section, pipeline section and heat absorption metallic plate (12,13) contact, heat absorption metallic plate (12,13) absorb solar energy and it is passed to described pipeline section (11), it is characterized in that: under the mounted state of described element, pipeline section (11) substantial horizontal is arranged, each pipeline section (11) all is provided with thermal-arrest metallic plate (12 separately, 13), pipeline section (11) is one another in series, and the panel (2 made by the material of substantial transparent of the major part of described element (3-23), 20) or sheet material cover.

2. solar collector element according to claim 1, wherein metallic plate (12,13) along its a longitudinal edge portion (14) with at least 180 ° cornerite around pipeline section (11).

3. solar collector element according to claim 1 and 2, wherein pipeline section (11) becomes a low-angle to extend each other, so that continuous gradient to be provided.

4. according to each described solar collector element in the aforementioned claim, wherein plate (2,20) is supported by metallic plate (12,13) at least in part.

5. according to each described solar collector element in the aforementioned claim, wherein panel (2,20) is the Merlon corrugated-sheet paneling.

6. according to each described solar collector element in the aforementioned claim, wherein pipeline section (11) forms continuous coil pipe (10), perhaps wherein paired pipeline section forms and is the part of U-shaped substantially, these parts are one another in series, perhaps wherein pipeline section is to be the pipe of J-shaped substantially, and these pipes are one another in series.

7. according to each described solar collector element in the aforementioned claim, wherein said element (3-23) comprises the wooden long framework (3) that has the cross member (6,7) that supports pipeline section (11), is covered with insulating materials (8) between cross member.

8. according to each described solar collector element in the aforementioned claim, wherein pipeline section (11) and metallic plate (12,13) are made of aluminum, and metallic plate (12,13) is provided with the heat radiation absorbed layer at it on an outer side, be preferably the unglazed priming paint of black.

9. according to each described solar collector element in the aforementioned claim, the horizontal length of wherein said element and width are respectively about 240cm and 60cm.

10. a solar collector that is used for pitched roof comprises according to each described solar collector element (3-23) in the aforementioned claim,

It is characterized in that: (3-23) is placed adjacent one another for a plurality of elements, so that cover the major part of roof height from gutter to ridge, pipeline section (11) in the described element (3-23) is cascaded, and described element (3-19) is covered by the common flat panel of preferably being made by the ripple Merlon (2), and metallic plate (12,13) supports described flat panel (2) at least in part in their pipeline section (11) zones separately.