CN206755624U - A kind of phase-transition heat-storage freeze-proof type solar heat collector - Google Patents
A kind of phase-transition heat-storage freeze-proof type solar heat collector Download PDFInfo
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- CN206755624U CN206755624U CN201720444580.2U CN201720444580U CN206755624U CN 206755624 U CN206755624 U CN 206755624U CN 201720444580 U CN201720444580 U CN 201720444580U CN 206755624 U CN206755624 U CN 206755624U
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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
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Abstract
The utility model discloses a kind of phase-transition heat-storage freeze-proof type solar heat collector, including shell (1), plate core flow-path tube (2), heat-insulation layer (3), PCM phase-transition heat-storages plate array (4), phase change plate array framework (5), absorber plate (6) and transparent cover plate (7), the embedded phase change plate array framework of the PCM phase-transition heat-storages plate array (4) is interior and is fixed into one piece of whole plate, between heat-insulation layer (3) and absorber plate (6), it is and Nian Jie with plate core flow-path tube (2) using heat-conducting glue, the absorber plate (6) realizes conduction heat transfer with plate core flow-path tube (2) welding.The utility model equipment safety is reliable, easily fabricated processing；Array is spliced into using the PCM phase-changing heat accumulation plates of polylith and is put into solar thermal collector, and the Volume Changes of phase-change material are small so that phase change plate is less likely to occur to leak；And the phase transition temperature of phase-change material is high, can effectively play the effect of freeze proof protection, can be used in cold area popularizing.
Description
Technical field
It the utility model is related to technical field of solar water heaters, more particularly to a kind of phase-transition heat-storage freeze-proof type solar collection
Hot device.
Background technology
Solar water heater can utilize sunshine to convert light energy into the heat energy of water, and hot water is provided to produce and living.
Solar water heater clean and safe, processing and manufacturing cost is cheap, is easy to be combined with architecture-integral, is widely used at present.
But the especially flat plate collector of the solar water heater for being used in cold district, after one day winter was run, to night
Freezeout often occurs in evening, and heat collector is done great damage.It is more normal at present on the antifreeze problem of solar thermal collector
Measure includes anti-icing fluid secondary cycle, night antifreeze emptying and night recycling heating etc., and correlative study and patent are more.
But most of research and patent be limited to realize using complex auxiliary safeguards system it is freeze proof, for how to improve thermal-arrest
The research of the freezing tolerance of device itself is less.Related patent has：Utility model patent：" antifreeze flat-plate solar collector "
(number of patent application 201210090849.3), utility model patent：" antifreezing solar flat plate collector and its design method "
(number of patent application 201410496263.6).Second of patent is in relatively, this patent is also to inhale with utility model
Install phase change heat storage material between hot plate and heat-insulation layer additional and phase-change material is combined closely with heat accumulation plate, reached using latent heat treatment
Cryoprotective effects.But from the freeze proof specific implementation of heat collector, following a few point defects be present in this patent：1, phase change plate
Being that one piece of whole plate is simultaneously internal contains baffle plate so that phase change plate processing and manufacturing is difficult, and phase-change material makes to lead to undergoing phase transition
Often with the change than volume, easily leak phase-change material using whole plate plus baffle plate；2, not to the type of phase-change material
Determined, because the most of phase change heat storage material used in engineering all carries more serious surfusion, and also it is antifreeze
The phase transition temperature of phase change plate can only be slightly above the freezing point of water so that phase-change material is possible to freeze in heat collector
Latent heat is just discharged afterwards, can not play freeze proof protective effect；3, phase change heat storage material is combined closely with absorber plate to be increased without taking
Add the measure of heat conduction so that may be larger with the absorber plate temperature difference during phase-change material release latent heat, increase heat collector freezes
Risk.
Utility model content
The purpose of this utility model is to overcome above-mentioned technological deficiency, there is provided a kind of phase-transition heat-storage freeze-proof type solar thermal-arrest
Device.The heat collector can effectively overcome that existing phase-change material Volume Changes in phase transition process are big, phase transition temperature is low, phase transformation
Technological deficiency without heat conduction measure between heat-storing material and absorber plate, so that heat collector of the present utility model is safe and reliable,
Easily fabricated processing, there is extraordinary anti-freezing property, can be widely used for cold district.
In order to achieve the above object, the utility model employs following technical scheme：
A kind of phase-transition heat-storage freeze-proof type solar heat collector, including shell, plate core flow-path tube, heat-insulation layer, absorber plate and thoroughly
Bright cover plate, the heat-insulation layer are installed in the cavity of shell, it is characterised in that：Also include PCM phase-transition heat-storages plate array and phase transformation
Plate array framework, the PCM phase-transition heat-storages plate array are embedded in the phase change plate array framework and are fixed into one piece of whole plate, be located at
Between heat-insulation layer and absorber plate, and it is Nian Jie with plate core flow-path tube using heat-conducting glue, and the absorber plate and the welding of plate core flow-path tube are real
Existing conduction heat transfer, the transparent cover plate are installed at shell aperture and by plate core flow-path tube, heat-insulation layer, PCM phase-changing heat accumulation plate battle arrays
Row, phase change plate array framework, absorber plate are enclosed in the cavity of shell.
As the improved technical scheme of the utility model, the PCM phase-transition heat-storages plate array by polylith individual packages PCM
Phase-changing heat accumulation plate is formed.
As the improved technical scheme of the utility model, the PCM phase-changing heat accumulation plates are stored using the phase transformation of aluminium box construction packages
Hot composite is made, and aluminium box is rectangular box body structure, and aluminium box wall thickness is 0.3~1mm, the phase-transition heat-storage composite
Phase transition temperature is 20 DEG C~30 DEG C.
As the improved technical scheme of the utility model, the phase-transition heat-storage composite is mainly by nanometer two-dimensional material 2
~5%wt, 0.5~1.5%wt of Nano Silver, 0.1~1%wt of nano-hydroxy ferrite, 0~1%wt of surfactant, silane are even
Join 0~1%wt of agent, 1~4%wt of inorganic salts, 2~3.5%wt of guar gum, 6~15%wt of polyvinyl alcohol, water surplus to form.
Further, the phase-transition heat-storage composite is mainly by 3.2~4.2%wt of nanometer two-dimensional material, Nano Silver 0.6
~1%wt, 0.3~0.8%wt of nano-hydroxy ferrite, 0~0.6%wt of surfactant, silane coupler 0.2~0.8%
Wt, 2~3.5%wt of inorganic salts, 2.5~3%wt of guar gum, 8~12%wt of polyvinyl alcohol, water surplus are formed.
Preferably, the phase-transition heat-storage composite mainly by nanometer two-dimensional material 3.8%wt, Nano Silver 0.8%wt, receive
Rice hydroxyl ferrite 0.5%wt, surfactant 0.2%wt, silane coupler 0.5%wt, inorganic salts 2.8%wt, guar gum
2.8%wt, polyvinyl alcohol 10%wt, water surplus are formed.
As the further improved technical scheme of the utility model, the nanometer two-dimensional material is 1~10nm including thickness
Molybdenum sulfide two-dimensional material, tungsten selenide two-dimensional material, black phosphorus two-dimensional material, at least one of bismuth selenide two-dimensional material.
As the further improved technical scheme of the utility model, the particle diameter of the Nano Silver is 2~20nm, the nanometer
The ferritic particle diameter of hydroxyl is 2~20nm.
As the further improved technical scheme of the utility model, the surfactant includes vinyl stearic bicine diester
Amine, oleic acid acyl, glyceryl monostearate, glyceryl tristearate, sodium benzoate, salicylic acid, sodium salicylate, p-aminophenyl first
At least one of acid, urethane, urea, acid amides, acetamide, the silane coupler include VTES,
In MTMS, tetraethoxysilane, vinyltrimethoxy silane, methylvinyldimethoxysilane extremely
Few one kind, the inorganic salts are included in potassium chloride, sodium chloride, magnesium chloride, potassium sulfate, sodium sulphate, potassium nitrate, sodium nitrate at least
It is a kind of.
As the further improved technical scheme of the utility model, the Volume Changes in the phase-change material phase transition process are
1~3%, it, which is in, is higher than in the environment of phase transformation temperature pointses in the pasty state, and it is in gel in the environment of less than phase transformation temperature pointses.
Compared with prior art, the beneficial effects of the utility model are：
1st, the utility model is formed a whole using phase change heat storage material and heat collector so that solar thermal collector possesses
Higher resistance to low temperature, and lighter weight is easy to carry.
2nd, the utility model is spliced into array using polylith PCM phase-changing heat accumulation plates and is put into solar thermal collector, phase-change material
Volume Changes it is small so that phase change plate is less likely to occur to leak, and total is easy to process, possesses higher security and reliable
Property.
3rd, the phase-change material encapsulated in PCM phase-changing heat accumulation plates of the present utility model, it is in the environment higher than phase transformation temperature pointses
Under in the pasty state, it is in gel in the environment of less than phase transformation temperature pointses, phase transformation small volume, and phase transition temperature is high, is not in
Cold phenomenon, effectively play freeze proof protective effect.
Brief description of the drawings
Fig. 1 is the exploded view of phase-transition heat-storage freeze-proof type solar heat collector provided by the utility model.
Fig. 2 is the top view of phase-transition heat-storage freeze-proof type solar heat collector provided by the utility model.
Fig. 3 is along the profile of line A-A in Fig. 2.
Fig. 4 is along the profile of line B-B in Fig. 2.
Embodiment
In order to illustrate more clearly of implementation of the present utility model, make the technical solution of the utility model a little more clear
Chu, with reference to specific implementation method and accompanying drawing, the technical solution of the utility model is clearly completely described.Obviously,
Described embodiment is part of the embodiment of the present utility model, rather than whole embodiments.Based in the utility model
Embodiment, those of ordinary skill in the art under the premise of creative work is not made or every other embodiment,
Belong to the scope of the utility model protection.
Phase-transition heat-storage freeze-proof type solar heat collector of the present utility model include shell 1, plate core flow-path tube 2, heat-insulation layer 3,
The phase change plate array framework 5 of PCM phase-transition heat-storages plate array 4, absorber plate 6 and transparent cover plate 7, as shown in Figure 1.Shell 1 is preferably provided with
For rectangular box structure.Wherein, heat-insulation layer 3 could be arranged to the heat-insulation layer being made up of polyurethane, mineral wool or phenolic resin,
The heat-insulation layer can also be made up of other insulation materials.Shown as shown in Figure 1, Figure 3 and Figure 4, PCM phase-transition heat-storages plate array 4 is positioned at guarantor
Between warm layer 3 and plate core flow-path tube 2, and in embedded phase change plate array framework 5.The framework be made by metal can weld or
Person is riveted on shell 1.Form every piece of PCM phase-changing heat accumulation plate individual packages of phase-transition heat-storage plate array, so that phase change plate
It is less likely to occur to leak, total is easy to process, possesses higher safety and reliability.Using heat-conducting glue by PCM phase transformations
Accumulation of heat plate array 4 and plate core flow-path tube 2 are bonded, and strengthen the heat transfer between runner and heat accumulation plate.Plate core flow-path tube 2 is arranged in PCM
Between phase-transition heat-storage plate array 4 and absorber plate 6, plate core flow-path tube 2 can be made up of materials such as copper, aluminium or stainless steels.Wherein
Plate core flow-path tube 2 could be arranged to Arrangement pipe, the form such as coiled pipe or coil pipe, as long as plate core flow-path tube 2 can be with absorber plate 6
It is engaged, fully absorbs the heat of the transmission of absorber plate 6.Absorber plate 6 is welded with plate core flow-path tube 2, and absorber plate 6 is preferably provided with
For the absorber plate with selective coating, such as magnetron sputtering indigo plant film absorber plate, black chromium absorber plate, anodic oxidation absorber plate, organic
Heat absorbing coating absorber plate.
Existing phase change heat storage material mainly includes inorganic phase-changing material and organic phase change material.Single inorganic phase-changing material
Corrosivity is high, single organic phase change material low thermal conductivity.Existing inorganic phase-changing material or organic phase change material are usually liquid,
It is encapsulated in the aluminium box of PCM phase-changing heat accumulation plates of the present utility model and easily reveals, and the phase transition temperature of organic phase change material
It is only slightly higher than the freezing point of water, therefore there is a possibility that phase-change material just discharges latent heat after freezing has occurred in heat collector, it can not play anti-
Freeze protective effect.In recent years, composite phase-change heat-storage material arises at the historic moment, and it can effectively overcome single inorganic matter or organic matter
The shortcomings that phase-change heat-storage material is present, the application effect of phase-change material can be improved again and expand its application.In order to full
Sufficient present apparatus leakproof and the requirement of high phase transition temperature, the utility model are developed to the formula of phase-change material, specific formula
It is as follows：The phase-transition heat-storage composite is mainly by 2~5%wt of nanometer two-dimensional material, 0.5~1.5%wt of Nano Silver, nanometer hydroxyl
0.1~1%wt of based ferrite, 0~1%wt of surfactant, 0~1%wt of silane coupler, 1~4%wt of inorganic salts, Guar
2~3.5%wt of glue, 6~15%wt of polyvinyl alcohol, water surplus are formed.Its preparation method is 1) by nanometer two-dimensional material, nanometer
Silver, nano-hydroxy ferrite, surfactant, silane coupler, polyvinyl alcohol blending are uniform；2) guar gum is distributed to water
In, 50~60 DEG C are heated to, melts guar gum and rises, forms transparent adhesive tape body fluid one；3) and then by inorganic salts add in step 2)
In transparent adhesive tape body fluid, stirring and dissolving, colloidal solution two is obtained；4) blend of step 1) is added into colloidal solution two made from step 3)
In, stir, obtain pastes；5) pastes made from step 4) is fitted into aluminium box, is cooled to 5~20 DEG C, obtains
To gel phase change heat storage material；6) it is described when being heated to being more than 30 DEG C by the gel phase change heat storage material that step 5) obtains
Phase change heat storage material is changed into pasty state by gel；7) cool down again, gelatinous phase change heat storage material can be obtained again.
The formula of phase-transition heat-storage composite one is as follows：
The phase transition temperature of phase-transition heat-storage composite one is 20 DEG C, and the Volume Changes in phase transition process are 1.9%.
The formula of phase-transition heat-storage composite two is as follows：
The phase transition temperature of phase-transition heat-storage composite two is 23 DEG C, and the Volume Changes in phase transition process are 1.4%.
The formula of phase-transition heat-storage composite three is as follows：
The phase transition temperature of phase-transition heat-storage composite three is 27 DEG C, and the Volume Changes in phase transition process are 1%.
The formula of phase-transition heat-storage composite four is as follows：
The phase transition temperature of phase-transition heat-storage composite four is 27 DEG C, and the Volume Changes in phase transition process are 2.2%.
The formula of phase-transition heat-storage composite five is as follows：
The phase transition temperature of phase-transition heat-storage composite five is 30 DEG C, and the Volume Changes in phase transition process are 3%.
The formula of phase-transition heat-storage composite six is as follows：
The phase transition temperature of phase-transition heat-storage composite six is 25 DEG C, and the Volume Changes in phase transition process are 1.3%.
The formula of phase-transition heat-storage composite seven is as follows：
The phase transition temperature of phase-transition heat-storage composite seven is 25 DEG C, and the Volume Changes in phase transition process are 1.7%.
The formula of phase-transition heat-storage composite eight is as follows：
The phase transition temperature of phase-transition heat-storage composite eight is 21 DEG C, and the Volume Changes in phase transition process are 1.9%.
The formula of phase-transition heat-storage composite nine is as follows：
The phase transition temperature of phase-transition heat-storage composite nine is 27 DEG C, and the Volume Changes in phase transition process are 1.1%.
Above-described embodiment is the preferable embodiment of the utility model, but embodiment of the present utility model is not by above-mentioned reality
Apply the limitation of example, it is other it is any without departing from the change made under Spirit Essence of the present utility model and principle, modification, replacement,
Combination, simplify, should be equivalent substitute mode, be included within the scope of protection of the utility model.
Claims (3)
1. a kind of phase-transition heat-storage freeze-proof type solar heat collector, including shell (1), plate core flow-path tube (2), heat-insulation layer (3), heat absorption
Plate (6) and transparent cover plate (7), the heat-insulation layer (3) are installed in the cavity of shell (1), it is characterised in that：Also include PCM phases
Become accumulation of heat plate array (4) and phase change plate array framework (5), the embedded phase transformation plate array of the PCM phase-transition heat-storages plate array (4)
In framework (5) and one piece of whole plate is fixed into, between heat-insulation layer (3) and absorber plate (6), and uses heat-conducting glue and plate core runner
(2) bonding is managed, the absorber plate (6) realizes conduction heat transfer with plate core flow-path tube (2) welding, and the transparent cover plate (7) is installed in
Shell (1) opening and by plate core flow-path tube (2), heat-insulation layer (3), PCM phase-transition heat-storages plate array (4), phase change plate array framework
(5), absorber plate (6) is enclosed in the cavity of shell (1).
2. phase-transition heat-storage freeze-proof type solar heat collector according to claim 1, it is characterised in that：The PCM phase transformations store
Hot plate array (4) is made up of the PCM phase-changing heat accumulation plates of polylith individual packages.
3. phase-transition heat-storage freeze-proof type solar heat collector according to claim 2, it is characterised in that：The PCM phase transformations store
Hot plate is made of aluminium box construction packages phase-transition heat-storage composite, and aluminium box is rectangular box body structure, and aluminium box wall thickness is 0.3~
1mm, the phase transition temperature of the phase-transition heat-storage composite is 20 DEG C~30 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720444580.2U CN206755624U (en) | 2017-04-25 | 2017-04-25 | A kind of phase-transition heat-storage freeze-proof type solar heat collector |
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| CN201720444580.2U CN206755624U (en) | 2017-04-25 | 2017-04-25 | A kind of phase-transition heat-storage freeze-proof type solar heat collector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044736A (en) * | 2017-04-25 | 2017-08-15 | 广东五星太阳能股份有限公司 | A kind of phase-transition heat-storage freeze-proof type solar heat collector |
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- 2017-04-25 CN CN201720444580.2U patent/CN206755624U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044736A (en) * | 2017-04-25 | 2017-08-15 | 广东五星太阳能股份有限公司 | A kind of phase-transition heat-storage freeze-proof type solar heat collector |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20200425 |
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| CF01 | Termination of patent right due to non-payment of annual fee |