CN2379756Y - External concentrating vacuum tube solar heat collector - Google Patents
External concentrating vacuum tube solar heat collector Download PDFInfo
- Publication number
- CN2379756Y CN2379756Y CN99216868U CN99216868U CN2379756Y CN 2379756 Y CN2379756 Y CN 2379756Y CN 99216868 U CN99216868 U CN 99216868U CN 99216868 U CN99216868 U CN 99216868U CN 2379756 Y CN2379756 Y CN 2379756Y
- Authority
- CN
- China
- Prior art keywords
- vacuum tube
- reflecting plate
- circumscribed circle
- pipe heat
- heat collector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S10/00—Solar heat collectors using working fluids
- F24S10/40—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
- F24S10/45—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Abstract
The utility model relates to an external light concentration vacuum tube heat collector which comprises vacuum tubes and reflecting plates, wherein, heat absorbing bodies are arranged in the vacuum tubes, and the reflecting plates are arranged below the vacuum tubes. The utility model is characterized in that the number of the reflecting plates is identical with that of the vacuum tubes, and each of the reflecting plates is correspondingly arranged below each of the vacuum tubes. The radial sectional plane of each of the reflecting plates forms a downward bent arbitrary polygon, and the number of the sides of the arbitrary polygon is n, wherein, the n is bigger than 2. The axis of each of the vacuum tube is in parallel with that of the circumscribed circle of each of the reflecting plates, and deviates from the axis of the circumscribed circle of each of the reflecting plates. The utility model has the advantages of simple structure and easy manufacture, so that cost of the utility model is also low. The utility model can be used for various solar heat using devices.
Description
The utility model relates to a kind of vacuum tube solar heating element.
Existing vacuum tube solar heating element is placed on the position difference of vacuum tube the inside or outside according to reflecting plate, is divided into outer concentrating collector and interior concentrating collector.And existing outer concentrating collector (as shown in Figure 1 and Figure 2) mainly comprises: a vacuum pumping pipe 11 and a flat board as reflecting plate 12, vacuum tube 1 and reflecting plate 12 are separately fixed on the framework 13.When shining upon, the sunlight of direct irradiation on vacuum tube 11 is absorbed by the absorber in the vacuum tube 14, still, is radiated at a part of sunlight on the reflecting plate 12 but owing to can not reflex on the absorber 14, and is slatterned in vain.In order to utilize this part energy better, there is design to propose reflecting plate 22 is made the shape (as shown in Figure 3) of composite parabolic, like this, vacuum tube 21 can be positioned on the focus of composite parabolic, make the light that is radiated on the reflecting plate, all reflex on the heat collector, collecting efficiency is greatly improved.But the reflecting plate of this heat collector more complicated on manufacture craft, cost is also higher.
At the problems referred to above, the purpose of this utility model provides a kind of simple for production, and cost is lower, and the higher outer condensing evacuated pipe heat collector of collecting efficiency.
For achieving the above object, the utility model is taked following design: a kind of outer condensing evacuated pipe heat collector, it comprises that inside has the vacuum tube and the reflecting plate that is arranged on described vacuum tube below of absorber, it is characterized in that: the quantity of described reflecting plate is identical with the quantity of described vacuum tube, and correspondence is arranged on each described vacuum tube below, described reflecting plate radial section be one be bent downwardly, the limit number is the arbitrary polygon of n, n＞2 wherein, the circumscribed circle axis parallel of the axle center of described vacuum tube and described reflecting plate, and the axle center of departing from described reflecting plate circumscribed circle.
Described reflecting plate radial section is the circular arc of n=∞ for one side number.
Described reflecting plate radial section is semicircle.
The projection on of described vacuum tube by the horizontal plane in described reflecting plate circumscribed circle axle center, the described outermost end P that is projected near described reflecting plate circumscribed circle axle center one side
1With the described reflecting plate circumscribed circle of this side outermost end D
1Between apart from S
1Satisfy: S
1〉=0.3d, the described outermost end P that is projected in away from described reflecting plate circumscribed circle axle center one side
2With the described reflecting plate circumscribed circle of this side outermost end D
2Between apart from S
2Satisfy: S
2≤ 0.2d, the diameter p of described vacuum tube satisfies simultaneously: 0.4d＜p＜0.7d.
Described vacuum tube one side external diameter and described reflecting plate circumscribed circle axis coinciding, i.e. S
1=0.5d, described vacuum tube opposite side external diameter with overlap i.e. S with the described reflecting plate circumscribed circle of this side
2=0, the diameter p=0.5d of described vacuum tube.
The absorber radial section shape of described vacuum tube inside can be an epirelief or recessed circular arc, also can be an annular.
The utility model is owing to take reflecting plate is arranged to reclinate arbitrary polygon, especially reflecting plate is arranged to semicircle, simultaneously vacuum tube is arranged on prejudicially the reflecting plate top, therefore, the sunshine that not only is radiated on the vacuum tube can be absorbed by the absorber in the vacuum tube, and the overwhelming majority be not radiated on the vacuum tube and be radiated on the reflecting plate sunshine, also can pass through reflection by the absorption of the absorber in the vacuum tube, thereby the collecting efficiency of heat collector greatly is provided.The utility model is simple in structure in addition, and is easily manufactured, so cost is also lower, and it can be widely used in various solar energy with in the thermic devices.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the prior art structural representation
Fig. 2 is the partial schematic diagram of Fig. 1
Fig. 3 is another embodiment of prior art
Fig. 4 is the utility model structural representation
Fig. 5 is the partial schematic diagram of Fig. 4
Fig. 6 is the perspective view of vacuum tube on reflecting plate
Fig. 7 is that the utility model absorber cross section is the epirelief schematic diagram
Fig. 8 is that the utility model absorber cross section is recessed schematic diagram
Fig. 9 is that the utility model absorber cross section is the annular schematic diagram
As Fig. 4, shown in Figure 5, the utility model comprises vacuum tube 1 and reflecting plate 2, and the main feature of the utility model is that the flat reflecting plate 2 of integral body of the prior art is improved, and it is set to be provided with a reflecting plate 2 below each root vacuum tube 1.The radial section of reflecting plate 2 is the reclinate arbitrary polygon of n for one side number, and when n was counted on the limit for infinity, reflecting plate 2 just became one to recessed circular arc, and more satisfactory state is a semicircle.For the sunshine that prevents to be radiated on the reflecting plate is missed, the utility model is arranged to the axis of vacuum tube 1 to depart from the axis of reflecting plate 2, desirable state is that an outermost end of vacuum tube 1 is close to a lateral reflection plate, and another vacuum tube outermost end is positioned on the reflecting plate axis.Like this, be not radiated at the reflection of sunlight by reflecting plate 2 on the vacuum tube 1, will be all collected, thereby improve the collecting efficiency of heat collector very effectively by the absorber in the vacuum tube 13.
In the foregoing description, because the needs or the restriction of manufacturing or mounting condition etc., the position of vacuum tube 1 above reflecting plate 2 may change to some extent, but its excursion should be no more than following limited range, not so can not reach its intended purposes well, its limited range is:
As shown in Figure 6, with a horizontal plane by reflecting plate 2 axle center as the perspective plane, vacuum tube 1 projection thereon, this is projected in the outermost end P near reflecting plate axle center O one side
1With this lateral reflection plate outermost end D
1Between apart from S
1Should satisfy: S
1〉=0.3d, and vacuum tube be projected in outermost end P away from described reflecting plate axle center O one side
2With this lateral reflection plate outermost end D
2Between apart from S
2Should satisfy: S
2≤ 0.2d, wherein d is the circumscribed circle diameter of reflecting plate, the diameter p of vacuum tube should satisfy simultaneously: 0.4d＜p≤0.7d.More than these condition restriction be to consider that if the diameter of vacuum tube 1 be 0.5d, if it mobilely a little to the left or to the right also should belong to protection domain of the present utility model so.Certainly, the diameter of vacuum tube 1 also not necessarily is exactly 0.5d, and it can be slightly larger, or slightly smaller, and this variation also should belong to protection domain of the present utility model.Simultaneously, the upper-lower position of vacuum tube 1 also can change, and its axis not necessarily overlaps with horizontal plane by reflecting plate 2 axle center.This variation also should belong to protection domain of the present utility model.
In the foregoing description, the radial section shape of the absorber 3 of vacuum tube 1 inside is except that employing is plate shaped, in order to cooperate with reflecting plate better, also can to send out and be set to convex (as shown in Figure 7) or, can also be annular (as shown in Figure 9) to the circular arc of recessed (as shown in Figure 8).The utility model can be a glass vacuum pipe heat collector, also can be heat pipe vacuum tube hot collector etc.
Claims (11)
1, a kind of outer condensing evacuated pipe heat collector, it comprises that inside has the vacuum tube and the reflecting plate that is arranged on described vacuum tube below of absorber, it is characterized in that: the quantity of described reflecting plate is identical with the quantity of described vacuum tube, and correspondence is arranged on each described vacuum tube below, described reflecting plate radial section be one be bent downwardly, the limit number is the arbitrary polygon of n, n＞2 wherein, the circumscribed circle axis parallel of the axle center of described vacuum tube and described reflecting plate, and the axle center of departing from described reflecting plate circumscribed circle.
2, outer condensing evacuated pipe heat collector as claimed in claim 1 is characterized in that: described reflecting plate radial section is the circular arc of n=∞ for one side number.
3, outer condensing evacuated pipe heat collector as claimed in claim 2, it is characterized in that: described reflecting plate radial section is for semicircle.
4, as claim 1 or 2 or 3 described outer condensing evacuated pipe heat collectors, it is characterized in that: the projection on of described vacuum tube, the described outermost end P that is projected in close described reflecting plate circumscribed circle axle center one side by the horizontal plane in described reflecting plate circumscribed circle axle center
1With the described reflecting plate circumscribed circle of this side outermost end D
1Between apart from S
1Satisfy: S
1〉=0.3d, the described outermost end P that is projected in away from described reflecting plate circumscribed circle axle center one side
2With the described reflecting plate circumscribed circle of this side outermost end D
2Between apart from S
2Satisfy: S
2≤ 0.2d, the diameter p of described vacuum tube satisfies simultaneously: 0.4d＜p＜0.7d.
5, outer condensing evacuated pipe heat collector as claimed in claim 4 is characterized in that: described vacuum tube one side external diameter and described reflecting plate circumscribed circle axis coinciding, i.e. S
1=0.5d, described vacuum tube opposite side external diameter with overlap i.e. S with the described reflecting plate circumscribed circle of this side
2=0, the diameter p=0.5d of described vacuum tube.
6, as claim 1 or 2 or 3 or 5 described outer condensing evacuated pipe heat collectors, it is characterized in that: the absorber radial section of described vacuum tube inside is the circular arc of an epirelief.
7, outer condensing evacuated pipe heat collector as claimed in claim 4, it is characterized in that: the absorber radial section of described vacuum tube inside is the circular arc of an epirelief.
8, as claim 1 or 2 or 3 or 5 described outer condensing evacuated pipe heat collectors, it is characterized in that: the absorber radial section of described vacuum tube inside is a recessed circular arc.
9, outer condensing evacuated pipe heat collector as claimed in claim 4, it is characterized in that: the absorber radial section of described vacuum tube inside is a recessed circular arc.
10, as claim 1 or 2 or 3 or 5 described outer condensing evacuated pipe heat collectors, it is characterized in that: the absorber radial section of described vacuum tube inside is an annular.
11, outer condensing evacuated pipe heat collector as claimed in claim 4, it is characterized in that: the absorber radial section of described vacuum tube inside is an annular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99216868U CN2379756Y (en) | 1999-07-14 | 1999-07-14 | External concentrating vacuum tube solar heat collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99216868U CN2379756Y (en) | 1999-07-14 | 1999-07-14 | External concentrating vacuum tube solar heat collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2379756Y true CN2379756Y (en) | 2000-05-24 |
Family
ID=34008425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99216868U Expired - Fee Related CN2379756Y (en) | 1999-07-14 | 1999-07-14 | External concentrating vacuum tube solar heat collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2379756Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7971587B2 (en) | 2007-10-31 | 2011-07-05 | The Regents Of The University Of California | Apparatus and method for solar thermal energy collection |
| CN102135336A (en) * | 2011-04-22 | 2011-07-27 | 张伟 | Solar heat collector |
| CN102563904A (en) * | 2012-02-20 | 2012-07-11 | 南京南洲新能源研究发展有限公司 | Thermoelectric integrated device of solar hollow glass tubes |
| CN102589166A (en) * | 2011-01-14 | 2012-07-18 | 北京金阳科创太阳能技术有限公司 | Method for controlling stagnation temperature of solar vacuum tube |
-
1999
- 1999-07-14 CN CN99216868U patent/CN2379756Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7971587B2 (en) | 2007-10-31 | 2011-07-05 | The Regents Of The University Of California | Apparatus and method for solar thermal energy collection |
| CN102589166A (en) * | 2011-01-14 | 2012-07-18 | 北京金阳科创太阳能技术有限公司 | Method for controlling stagnation temperature of solar vacuum tube |
| CN102589166B (en) * | 2011-01-14 | 2014-07-16 | 北京金阳科创太阳能技术有限公司 | Method for controlling stagnation temperature of solar vacuum tube |
| CN102135336A (en) * | 2011-04-22 | 2011-07-27 | 张伟 | Solar heat collector |
| CN102563904A (en) * | 2012-02-20 | 2012-07-11 | 南京南洲新能源研究发展有限公司 | Thermoelectric integrated device of solar hollow glass tubes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |