CN110454991A - A kind of vacuum type heat collector and heat collecting method - Google Patents

A kind of vacuum type heat collector and heat collecting method Download PDF

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Publication number
CN110454991A
CN110454991A CN201910663728.5A CN201910663728A CN110454991A CN 110454991 A CN110454991 A CN 110454991A CN 201910663728 A CN201910663728 A CN 201910663728A CN 110454991 A CN110454991 A CN 110454991A
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CN
China
Prior art keywords
metal
tube
vacuum
net shaped
shaped component
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.)
Pending
Application number
CN201910663728.5A
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Chinese (zh)
Inventor
孙鹏程
周旭
齐月松
谢榭
赵飞
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China State Construction Engineering Corp Ltd CSCEC
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China State Construction Engineering Corp Ltd CSCEC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to CN201910663728.5A priority Critical patent/CN110454991A/en
Publication of CN110454991A publication Critical patent/CN110454991A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00Solar heat collectors using working fluids
    • F24S10/40Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00Solar heat collectors using working fluids
    • F24S10/70Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00Arrangements for controlling solar heat collectors
    • F24S50/80Arrangements for controlling solar heat collectors for controlling collection or absorption of solar radiation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S60/00Arrangements for storing heat collected by solar heat collectors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S70/00Details of absorbing elements
    • F24S70/10Details of absorbing elements characterised by the absorbing material
    • F24S70/12Details of absorbing elements characterised by the absorbing material made of metallic material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24SSOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S90/00Solar heat systems not otherwise provided for
    • F24S90/10Solar heat systems not otherwise provided for using thermosiphonic circulation
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/40Solar thermal energy, e.g. solar towers
    • Y02E10/44Heat exchange systems

Abstract

The invention discloses a kind of vacuum type heat collector and heat collecting methods, are related to solar energy utilization technique field, and vacuum type heat collector includes vacuum tube, metal net shaped component, upper channel and lower channel;At least two vacuum tube array arrangements are between upper channel and lower channel, and one end of vacuum tube is connected to upper channel, and the other end is connected to lower channel;At least two metal net shaped component laminated arrays are connected to cavity inside, have heat accumulation and limitation convection action.The present invention has the advantages that photothermal conversion efficiency is high, heat storage capacity is strong.

Description

A kind of vacuum type heat collector and heat collecting method
Technical field
The present invention relates to solar energy utilization technique fields, and in particular to a kind of vacuum type heat collector and heat collecting method.
Background technique
Solar energy is a kind of reproducible new energy, it has environmental protection, permanent advantage, is that reply energy shortage weather becomes One of the important selection changed, increasingly by the strong interest of common people.Solar utilization technique refers mainly to solar energy and is converted to heat The technologies such as energy, mechanical energy, electric energy, chemical energy, wherein solar energy is most remote to thermal energy conversion history, exploitation is most universal, referred to as Solar thermal utilization.
More universal flat type solar heat collector at present, absorber are absorber plates, the material of absorber plate have metal, Plastics, rubber, ceramics etc., structure has comb and collector, in order to increase the effect for absorbing solar energy, has coating on absorber plate, applies Layer is divided into non-selective coating and selective coating, and the processing technology of coating has vacuum coating, anodization plated film etc..
The coating material of absorber plate plays a very important role to solar radiation energy is absorbed.Because of the wavelength of solar radiation It is concentrated mainly in the range of 0.3-2.5um, and the heat radiation of absorber plate is then concentrated mainly in the wave-length coverage of 2-20um, Enhance absorber plate to the absorbability of solar radiation, reduce heat loss again, reduce the heat radiation of absorber plate, it is necessary to using choosing Selecting property coating.Selective coating is that have higher absorption rate to solar shortwave radiation, and lower to long-wave radiation emissivity A kind of coating, the method that current factory both domestic and external mostly uses greatly magnetron sputtering make selective coating, can reach absorptivity 0.93-0.95, emissivity 0.12-0.04, substantially increases heat absorption capacity.
But these technological means despite the use of, but flat type solar heat collector still can not overcome endotherm area It is smaller, the larger problem of heat loss.Endotherm area is limited, the volumetric constraint of the heat collector area of absorber plate, and then limits Endotherm area, and the volume of solar thermal collector cannot infinitely increase.Although selective coating has been used to improve absorber plate Heat absorption efficiency, but when absorb heat plate temperature increase after, heat loss also will increase, can only by improve insulation layer material, Or it thickeies glass cover-plate and adds the means such as transparent honeycomb to reduce heat waste.Therefore, photothermal conversion efficiency is by heat absorption plate Material and structure are affected, and in order to improve transfer efficiency, can only select expensive material and complicated mechanism, processing cost is very Height, difficulty of processing are very big.
Summary of the invention
Therefore, technical problems to be solved of the embodiment of the present invention are heat collector photothermal conversion efficiency in the prior art It is low.
For this purpose, a kind of vacuum type heat collector of the embodiment of the present invention, comprising: vacuum tube, metal net shaped component, upper channel and Lower channel;
Between upper channel and lower channel, one end of vacuum tube is connected at least two vacuum tube array arrangements with upper channel, The other end is connected to lower channel;
At least two metal net shaped component laminated arrays are connected to vacuum tube cavity inside, and there is heat accumulation and limitation convection current to make With.
Preferably, the metal net shaped component is steel wire.
Preferably, the silk thread of the steel wire is hollow tube, and hollow tube is filled with heat absorption liquid.
A kind of vacuum type heat collector of the embodiment of the present invention, comprising: vacuum tube, metal net shaped component, upper channel and lower logical Road;
Between upper channel and lower channel, one end of vacuum tube is connected at least two vacuum tube array arrangements with upper channel, The other end is connected to lower channel;
At least two metal net shaped component laminated arrays are connected to vacuum tube cavity inside, have adjustable heat accumulation and limit Convection action processed.
Preferably, the metal net shaped component includes the first metal tube sheets and the second metal tube sheets;
First metal tube sheets and the second metal tube sheets include metal tube arranged in parallel, metal tubular arranged in parallel at Plate, metal tube have pipe lid, are rotatably connected between pipe lid and metal tube tube wall by shaft, for according to illumination and temperature Variation adjust heat accumulation and limitation convection action;
First metal tube sheets and the alternately laminated arrangement of the second metal tube sheets, the metal tube orientation of adjacent tube sheet are mutually handed over Fork is vertical.
Preferably, the metal net shaped component includes the sheet metal and transmission mechanism in reticular structure;
One end of sheet metal is connect with transmission mechanism, is moved under the drive of transmission mechanism, for according to illumination and The variation of temperature adjusts heat accumulation and limitation convection action.
A kind of heat collecting method of vacuum type heat collector of the embodiment of the present invention, comprising the following steps:
S1, first layer metal reticular component absorb the light heat come through the irradiation of vacuum tube wall;
Metal net shaped component more than S2, the second layer is absorbed through the next light heat of vacuum tube wall irradiation and through upper The light heat that the hole irradiation of the metal net shaped component of layer comes;
It is discharged after S3, vacuum tube interior gas are heated from upper channel or lower channel.
Preferably, further comprising the steps of:
S4, when illumination is weaker and/or temperature is lower, pipe lid close on metal tube, make the hole of metal net shaped component It is larger;
S5, when illumination is relatively strong and/or temperature is higher, pipe lid, which rotates around the axis, opens certain angle, makes metal net shaped structure The hole of part is smaller.
Preferably, further comprising the steps of:
S6, when illumination is weaker and/or temperature is lower, transmission mechanism drives sheet metal mobile, makes at least two metal meshes The hole arranged in co-axial alignment of shape component;
S7, when illumination is relatively strong and/or temperature is higher, transmission mechanism drives sheet metal mobile, makes at least two metal meshes The non-coaxial arrangement that is staggered of the hole of shape component.
The technical solution of the embodiment of the present invention, has the advantages that
Vacuum type heat collector provided in an embodiment of the present invention, by the way that metal net shaped component is arranged, increasing absorbs heat ability, And there is stable or adjustable heat accumulation and limitation convection action, greatly improve photothermal conversion efficiency.And device junction Structure is simple, reliable operation, cost is relatively low.
Detailed description of the invention
In order to illustrate more clearly of the technical solution in the specific embodiment of the invention, specific embodiment will be retouched below Attached drawing needed in stating is briefly described, it should be apparent that, the accompanying drawings in the following description is some realities of the invention Mode is applied, it for those of ordinary skill in the art, without creative efforts, can also be attached according to these Figure obtains other attached drawings.
Fig. 1 is the structural schematic diagram of a specific example of vacuum type heat collector in the embodiment of the present invention 1;
Fig. 2 is the structural schematic diagram of a specific example of vacuum tube in the embodiment of the present invention 1;
Fig. 3 is the structural schematic diagram of a specific example of metal net shaped component in the embodiment of the present invention 2;
Fig. 4 is the side view of the metal net shaped component of Fig. 3;
Fig. 5 is the structural schematic diagram of a specific example of metal net shaped component in the embodiment of the present invention 3;
Fig. 6 is the flow chart of a specific example of heat collecting method in the embodiment of the present invention 4.
Appended drawing reference: 1- vacuum tube, the metal net shaped component of 2-, the first metal tube sheets of 21-, 211- metal tube, 212- pipe lid, 213- shaft, the second metal tube sheets of 22-, 23- sheet metal, 24- transmission mechanism, 3- upper channel, 4- lower channel.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the term as used herein is only used for the mesh of description specific embodiment , and it is not intended to limit the present invention.Unless clearly indicated by the context, otherwise singular " one " as used herein, The intentions such as "one" and "the" also include plural form.When using terms such as " include " and or " include ", it is intended to illustrate exist This feature, integer, step, operation, element and/or component, and it is not excluded for one or more other features, integer, step, behaviour Work, element, component, and/or other presence or increase for combining.Term "and/or" includes that one or more correlations list project Any and all combinations.The instruction such as term " center ", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outside" Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description the present invention and simplification retouch It states, rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, Therefore it is not considered as limiting the invention.Term " first ", " second " are used for description purposes only, and should not be understood as indicating Or imply relative importance.Term " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, It can be and be detachably connected, or be integrally connected;It can be directly connected, can also may be used also indirectly connected through an intermediary To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition Concrete meaning in the present invention.
As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments It can be combined with each other at conflict.
Embodiment 1
The present embodiment provides a kind of vacuum type heat collectors, as depicted in figs. 1 and 2, comprising: vacuum tube 1, metal net shaped component 2, upper channel 3 and lower channel 4.At least two vacuum tubes, 1 array arrangement is between upper channel 3 and lower channel 4, and the one of vacuum tube 1 End is connected to upper channel 3, and the other end is connected to lower channel 4.Preferably, vacuum tube 1 selects double-layer glass tube, plays better guarantor Warm heat-blocking action.At least two metal net shaped 2 laminated arrays of component are connected to 1 cavity inside of vacuum tube, have heat accumulation and limitation Convection action.Tool is shown in Fig. 1 and Fig. 2, and there are five metal net shaped components 2, but are not limited to five, are also possible to two, three A, four, six etc., as long as to allow can choose setting more multiple to improve the thermal efficiency for vacuum tube inner space.It is metal net shaped The end of component 2 is connected on 1 inner wall of vacuum tube.Upper channel 3 and lower channel 4 are respectively as ventilation inlet and outlet.Vacuum tube 1 Intersect or be vertically connected with upper channel 3 and lower channel 4 respectively and connects, thus gas is between upper channel 3, vacuum tube 1, lower channel 4 Flowing needs to turn to, and to reduce gaseous exchange, reduces heat loss, improves heat storage capacity.
The working principle of above-mentioned vacuum type heat collector are as follows: light (such as sunlight) is irradiated to metal net shaped through vacuum tube 1 On component 2, metal net shaped component 2 absorbs heat, and temperature increases, and due to there is hole between metal net shaped component 2, light passes through hole Gap can be also radiated on the netted component of lower metal, and with the continuous increase of amount of radiation, managing after interior gas is heated makes in vacuum tube 1 Gas temperature increase, gas rises, into being discharged in upper channel.
Preferably, metal net shaped component 2 is steel wire.As shown in Fig. 2, steel wire is lateral row in 1 cavity of vacuum tube Column, but not limited to this, it can be the arrangement of horizontal and vertical common across with steel wire.
Preferably, the silk thread of steel wire is hollow tube, and hollow tube is filled with heat absorption liquid, the heat accumulation energy of heat absorption liquid Power is better than steel wire itself, to further improve photothermal conversion efficiency and heat storage capacity.
Above-mentioned vacuum type heat collector increases the heat ability that absorbs, and have stable by the way that metal net shaped component is arranged Heat accumulation and limitation convection action, greatly improve photothermal conversion efficiency.And device architecture is simple, reliable operation, cost compared with It is low.
Embodiment 2
The present embodiment provides a kind of vacuum type heat collectors, comprising: vacuum tube 1, metal net shaped component 2, upper channel 3 and lower logical Road 4.Between upper channel 3 and lower channel 4, one end of vacuum tube 1 is connected at least two vacuum tubes, 1 array arrangement with upper channel 3, The other end is connected to lower channel 4.At least two metal net shaped 2 laminated arrays of component are connected to 1 cavity inside of vacuum tube, and having can The heat accumulation and limitation convection action of adjusting.
With embodiment 1 the difference is that there is at least two metal net shaped components 2 adjustable heat accumulation and limitation convection current to make With.
Preferably, as shown in Figure 3 and Figure 4, metal net shaped component 2 includes the first metal tube sheets 21 and the second metal tube sheets 22.First metal tube sheets 21 and the second metal tube sheets 22 include metal tube 211 arranged in parallel, metal tube arranged in parallel 211 form plate, and the cross section of metal tube 211 can be circle, square, rectangle, trapezoidal etc., and metal tube 211 has pipe lid 212, it is rotatably connected between 211 tube wall of pipe lid 212 and metal tube by shaft, for being adjusted according to the variation of illumination and temperature Heat accumulation and limitation convection action.First metal tube sheets 21 and the alternately laminated arrangement of the second metal tube sheets 22, the metal of adjacent tube sheet Pipe orientation intersects or vertically.
When work, when in the morning or, illumination is weaker the dusk time-division, when temperature is lower, pipe lid 212 is closed in metal tube 211 On, keep the hole between metal tube 211 larger, improves the ability that light is transmitted down, the equal energy of metal net shaped component of upper and lower level Sufficient light irradiation is obtained, photothermal conversion efficiency is improved.
When time-division, illumination enhance at noon, when temperature increases, with gradually increasing for illumination, temperature is gradually increased, pipe Lid 212 gradually can slowly be opened (this opening procedure does not stop in opening procedure as continuous process) or every using around the shaft 213 It is secondary be opened to predetermined angle after stay for some time, until open to close when angle be in 180 °, predetermined angle is according to reality Border intensity of illumination and temperature setting, make the hole between metal tube 211 gradually be blocked and reduce, reduce by 1 inside gas of vacuum tube Heat convection of the body between hole, by gas control among metal net shaped component, to inhibit gas free convection hot Loss, improves heat storage capacity.
Embodiment 3
The present embodiment provides a kind of vacuum type heat collectors, comprising: vacuum tube 1, metal net shaped component 2, upper channel 3 and lower logical Road 4.Between upper channel 3 and lower channel 4, one end of vacuum tube 1 is connected at least two vacuum tubes, 1 array arrangement with upper channel 3, The other end is connected to lower channel 4.At least two metal net shaped 2 laminated arrays of component are connected to 1 cavity inside of vacuum tube, and having can The heat accumulation and limitation convection action of adjusting.
With embodiment 1 the difference is that there is at least two metal net shaped components 2 adjustable heat accumulation and limitation convection current to make With.
Preferably, as shown in figure 5, metal net shaped component 2 includes the sheet metal 23 and transmission mechanism 24 in reticular structure.Gold The one end for belonging to piece 23 is connect with transmission mechanism 24, is moved under the drive of transmission mechanism 24, for according to illumination and temperature Variation adjust heat accumulation and limitation convection action.The rib of sheet metal 23 has certain width, compared to steel wire, endotherm area Bigger, heat absorption heat storage capacity is stronger.Preferably, transmission mechanism is gear and rack gear, and the lower part of sheet metal 23 has Rack structure is meshed with gear and connect, and gear rotation drives sheet metal to move left and right.
When work, when in the morning or, illumination is weaker the dusk time-division, when temperature is lower, transmission mechanism 24 drives sheet metal 23 It is mobile, make the hole arranged in co-axial alignment of at least two layers sheet metal 23 in reticular structure, keeps the blocking to light smaller, can make more Light be transmitted to lower layer, improve the ability that light is transmitted down, the metal net shaped component of upper and lower level can obtain sufficient light Line irradiation, improves photothermal conversion efficiency.
When time-division, illumination enhance at noon, when temperature increases, with gradually increasing for illumination, temperature is gradually increased, and is passed Motivation structure 24 drives 23 left/right of sheet metal mobile, makes to be staggered in the sheet metal 23 or so of reticular structure at least two layers, hole by It is gradually blocked and reduces, reduce heat convection of 1 internal gas of vacuum tube between hole, gas is controlled in metal net shaped structure Among part, to inhibit gas free convection heat loss, heat storage capacity is improved.
Embodiment 4
The present embodiment provides a kind of heat collecting methods of vacuum type heat collector, as shown in Figure 6, comprising the following steps:
S1, first layer metal reticular component 2 absorb the light heat come through the irradiation of 1 tube wall of vacuum tube.
Metal net shaped component 2 more than S2, the second layer absorbs the light heat come through the irradiation of 1 tube wall of vacuum tube and transmission The light heat that the hole irradiation of the metal net shaped component 2 in upper layer comes.
It is discharged after S3,1 internal gas of vacuum tube are heated from upper channel 3 or lower channel 4.
Preferably, further comprising the steps of:
S4, when illumination is weaker and/or temperature is lower, pipe lid 212 close on metal tube 211, make metal net shaped component 2 Hole it is larger, improve the ability that is transmitted down of light, the metal net shaped component of upper and lower level can obtain sufficient light irradiation, Improve photothermal conversion efficiency.
S5, when illumination is relatively strong and/or temperature is higher, the 213 rotating opening certain angle around the shaft of pipe lid 212 makes metal The hole of reticular component 2 is smaller, reduces the heat convection of 1 internal gas of vacuum tube within the cleft, gas is controlled in metal Among reticular component, to inhibit gas free convection heat loss, heat storage capacity is improved.
Or preferably, further comprising the steps of:
S6, when illumination is weaker and/or temperature is lower, transmission mechanism 24 drives sheet metal 23 mobile, makes at least two gold medals The hole arranged in co-axial alignment for belonging to reticular component 2, keeps the blocking to light smaller, and more light can be made to be transmitted to lower layer, improves light The ability that line is transmitted down, the metal net shaped component of upper and lower level can obtain sufficient light irradiation, improve photothermal conversion efficiency.
S7, when illumination is relatively strong and/or temperature is higher, transmission mechanism 24 drives sheet metal 23 mobile, makes at least two gold medals Belong to the non-coaxial arrangement that is staggered of hole of reticular component 2, gap reduces, and reduces the convection current of 1 internal gas of vacuum tube within the cleft Heat exchange, to inhibit gas free convection heat loss, improves heat accumulation energy by gas control among metal net shaped component Power.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes still within the protection scope of the invention.

Claims (9)

1. a kind of vacuum type heat collector characterized by comprising vacuum tube (1), metal net shaped component (2), upper channel (3) and Lower channel (4);
Between upper channel (3) and lower channel (4), one end of vacuum tube (1) leads at least two vacuum tubes (1) array arrangement with upper Road (3) connection, the other end are connected to lower channel (4);
At least two metal net shaped component (2) laminated arrays are connected to vacuum tube (1) cavity inside, have heat accumulation and limitation convection current Effect.
2. vacuum type heat collector according to claim 1, which is characterized in that the metal net shaped component (2) is steel wire.
3. vacuum type heat collector according to claim 2, which is characterized in that the silk thread of the steel wire is hollow tube, in Heat absorption liquid is filled with inside blank pipe.
4. a kind of vacuum type heat collector characterized by comprising vacuum tube (1), metal net shaped component (2), upper channel (3) and Lower channel (4);
Between upper channel (3) and lower channel (4), one end of vacuum tube (1) leads at least two vacuum tubes (1) array arrangement with upper Road (3) connection, the other end are connected to lower channel (4);
At least two metal net shaped component (2) laminated arrays are connected to vacuum tube (1) cavity inside, have adjustable heat accumulation and Limit convection action.
5. vacuum type heat collector according to claim 4, which is characterized in that the metal net shaped component (2) includes first Metal tube sheets (21) and the second metal tube sheets (22);
First metal tube sheets (21) and the second metal tube sheets (22) include metal tube (211) arranged in parallel, arranged in parallel Metal tube (211) forms plate, and metal tube (211) has pipe lid (212), leads between pipe lid (212) and metal tube (211) tube wall It crosses shaft to be rotatably connected, for adjusting heat accumulation and limitation convection action according to the variation of illumination and temperature;
First metal tube sheets (21) and the second metal tube sheets (22) alternately laminated arrangement, the metal tube orientation phase of adjacent tube sheet Mutually intersect or vertical.
6. vacuum type heat collector according to claim 4, which is characterized in that the metal net shaped component (2) includes in net The sheet metal (23) and transmission mechanism (24) of shape structure;
One end of sheet metal (23) is connect with transmission mechanism (24), is moved under the drive of transmission mechanism (24), and root is used for Heat accumulation and limitation convection action are adjusted according to illumination and the variation of temperature.
7. a kind of heat collecting method of vacuum type heat collector, which comprises the following steps:
S1, first layer metal reticular component (2) absorb the light heat come through the irradiation of vacuum tube (1) tube wall;
Metal net shaped component (2) more than S2, the second layer absorbs the light heat come through the irradiation of vacuum tube (1) tube wall and transmission The light heat that the hole irradiation of the metal net shaped component in upper layer (2) comes;
It is discharged after S3, vacuum tube (1) internal gas are heated from upper channel (3) or lower channel (4).
8. heat collecting method according to claim 7, which is characterized in that further comprising the steps of:
S4, when illumination is weaker and/or temperature is lower, pipe lid (212) close on metal tube (211), make metal net shaped component (2) hole is larger;
S5, when illumination is relatively strong and/or temperature is higher, pipe lid (212) (213) rotating opening certain angle around the shaft makes metal The hole of reticular component (2) is smaller.
9. heat collecting method according to claim 7, which is characterized in that further comprising the steps of:
S6, when illumination is weaker and/or temperature is lower, transmission mechanism (24) drives sheet metal (23) mobile, makes at least two gold medals Belong to the hole arranged in co-axial alignment of reticular component (2);
S7, when illumination is relatively strong and/or temperature is higher, transmission mechanism (24) drives sheet metal (23) mobile, makes at least two gold medals Belong to the non-coaxial arrangement that is staggered of hole of reticular component (2).
CN201910663728.5A 2019-07-22 2019-07-22 A kind of vacuum type heat collector and heat collecting method Pending CN110454991A (en)

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CN110454991A true CN110454991A (en) 2019-11-15

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10002929A1 (en) * 2000-01-25 2001-07-26 Friedrich Roth Solar energy collector tube has double-wall and transparent vacuum tube with braiding to absorb heat from solar rays and control valve to ensure carrier gas is sufficiently hot on entering hot gas tube
KR20020013637A (en) * 2000-08-12 2002-02-21 손재익 Evacuated tube solar collector for industry use
CN102538250A (en) * 2010-12-23 2012-07-04 丁琪 Solar heat pipe heat-conducting composite structure
CN103075814A (en) * 2013-01-28 2013-05-01 山西明浩锦达新能源有限公司 Novel solar heat collector with net wires
CN103423880A (en) * 2012-05-22 2013-12-04 潘琴 Novel vacuum-tube type solar collector
CN103542562A (en) * 2013-10-29 2014-01-29 武汉易辰科技有限公司 Anti-freezing method of flat plate solar energy water heater
CN103759429A (en) * 2013-10-26 2014-04-30 范思佳 Novel solar evacuated tube collector
CN108895676A (en) * 2018-07-26 2018-11-27 天津大学 A kind of built-in porous media trough type solar heat-collector of augmentation of heat transfer

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10002929A1 (en) * 2000-01-25 2001-07-26 Friedrich Roth Solar energy collector tube has double-wall and transparent vacuum tube with braiding to absorb heat from solar rays and control valve to ensure carrier gas is sufficiently hot on entering hot gas tube
KR20020013637A (en) * 2000-08-12 2002-02-21 손재익 Evacuated tube solar collector for industry use
CN102538250A (en) * 2010-12-23 2012-07-04 丁琪 Solar heat pipe heat-conducting composite structure
CN103423880A (en) * 2012-05-22 2013-12-04 潘琴 Novel vacuum-tube type solar collector
CN103075814A (en) * 2013-01-28 2013-05-01 山西明浩锦达新能源有限公司 Novel solar heat collector with net wires
CN103759429A (en) * 2013-10-26 2014-04-30 范思佳 Novel solar evacuated tube collector
CN103542562A (en) * 2013-10-29 2014-01-29 武汉易辰科技有限公司 Anti-freezing method of flat plate solar energy water heater
CN108895676A (en) * 2018-07-26 2018-11-27 天津大学 A kind of built-in porous media trough type solar heat-collector of augmentation of heat transfer

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