CN110296452A - A kind of multi-level phase change heat storage type solar heating, hot-water supply system - Google Patents
A kind of multi-level phase change heat storage type solar heating, hot-water supply system Download PDFInfo
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- CN110296452A CN110296452A CN201910709443.0A CN201910709443A CN110296452A CN 110296452 A CN110296452 A CN 110296452A CN 201910709443 A CN201910709443 A CN 201910709443A CN 110296452 A CN110296452 A CN 110296452A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 191
- 238000010438 heat treatment Methods 0.000 title claims abstract description 37
- 230000008859 change Effects 0.000 title claims abstract description 28
- 238000005338 heat storage Methods 0.000 title claims abstract description 22
- 239000012782 phase change material Substances 0.000 claims abstract description 62
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000009825 accumulation Methods 0.000 claims abstract description 21
- 238000000576 coating method Methods 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 15
- 229910052751 metal Inorganic materials 0.000 claims abstract description 15
- 239000011521 glass Substances 0.000 claims abstract description 11
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 11
- 239000010703 silicon Substances 0.000 claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims abstract description 10
- 238000012546 transfer Methods 0.000 claims abstract description 10
- 238000005286 illumination Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000008901 benefit Effects 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 5
- 230000008676 import Effects 0.000 claims description 20
- 230000007704 transition Effects 0.000 claims description 10
- 239000002918 waste heat Substances 0.000 claims description 9
- 230000009466 transformation Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 239000012188 paraffin wax Substances 0.000 claims description 4
- 239000000178 monomer Substances 0.000 claims description 3
- 239000008399 tap water Substances 0.000 claims description 3
- 235000020679 tap water Nutrition 0.000 claims description 3
- 238000002834 transmittance Methods 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000002310 reflectometry Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/08—Hot-water central heating systems in combination with systems for domestic hot-water supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
- F24D3/1066—Distributors for heating liquids
-
- 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
-
- 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
- F24S10/70—Solar heat collectors using working fluids the working fluids being conveyed through tubular absorbing conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/40—Solar heat collectors combined with other heat sources, e.g. using electrical heating or heat from ambient air
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S70/00—Details of absorbing elements
- F24S70/20—Details of absorbing elements characterised by absorbing coatings; characterised by surface treatment for increasing absorption
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Water Supply & Treatment (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The present invention relates to a kind of multi-level phase change heat storage type solar heatings, hot-water supply system, spiral heat exchange tube is arranged in solar vacuum heat-collecting pipe inner cavity in system, phase-change material is filled in spiral heat exchange tube and solar vacuum heat-collecting pipe inner cavity gap section simultaneously, the advantages of, heat transfer area compact using spiral tube structure is greatly and phase-change material accumulation of energy is more, accumulation of energy process isothermal occurs, proposes a kind of solar vacuum heat-collecting pipe for having both thermal-arrest and heat storage function.The present invention coats reflectance coating in the in the shade face of high-boron-silicon glass pipe, and oblique fire sunlight is reflexed on the coating for selective absorption of metal inner pipe outer surface, reduces illumination loss.Phase-change material classification is filled into solar vacuum heat-collecting pipe, water collector, hot water three parts, compared to heat-storing device is concentrated, saves space, reduces material stacking thickness, enhance heat transfer efficiency.Whole system makees main heating source with solar energy, and electric energy is auxiliary thermal source, can satisfy the user demand under various operating conditions.
Description
Technical field
The present invention relates to solar energy heat utilization field more particularly to a kind of multi-level phase change heat storage type solar heatings, heat supply
Water system.
Background technique
With the aggravation of problem of environmental pollution, the utilization of solar energy resources has obtained the attention of people.Solar water heater
Universal application has been obtained in life, however, with solar energy simultaneously heated, supplying hot water the case where it is less, mainly
In terms of reason is divided into following two: one side solar energy resources have periodical, intermittent, instable natural drawback, by
To being affected for illumination variation, stable heat transmission cannot achieve, rely solely on water heat accumulation, low efficiency, rapid heat dissipation, it is difficult to
Meet prolonged heating, hot water demand；On the other hand, solar energy resources on daytime are abundant, but resident's heating, hot water demand are small,
Night solar energy resources are deficient, and resident's heating, hot water demand are more, and there are the mismatch in resource and required time.
Phase-change material is a research hotspot of current energy storage field, and when undergoing phase transition, temperature does not change, and
And a large amount of latent heat can be stored, and other energy storage materials are compared, phase-change material is interior in a limited space can to store more energy,
Exchanging hot working fluid plays temperature control function simultaneously.However phase-change material is main at present and solar energy hot water supply system combines, and stops
It in single part, or needs to establish centralized heat-storing device, occupies biggish space, it is difficult to realize that resident living uses.Together
When centralization heat-storing device in phase-change material ulking thickness it is big, heat-transfer effect is poor, and heat accumulation effect is undesirable.Currently, in the market
Just lacking it is a kind of it is compact-sized, take up little area and can be achieved at the same time heating, supplying hot water solar energy system.
Summary of the invention
The present invention is directed to the problem of above-mentioned background technique, propose a kind of multi-level phase change heat storage type solar heating,
Hot-water supply system.
The invention has the following advantages:
1. first order phase change material 6 of the present invention, second-order phase transistion material 12,15 dispersed filler of three-level phase-change material are in system
Different location, more save space compared to centralized heat-storing device, material stacking thickness is thin, and heat-transfer effect is good, heat accumulation efficiency
Higher, use is more flexible.
2. 4 inner cavity of solar vacuum heat-collecting pipe of the present invention is provided with spiral heat exchange tube 5, while exchanging heat in spiral
First order phase change material 6 is filled in pipe 5 and 4 inner cavity gap section of solar vacuum heat-collecting pipe, compact-sized using helical pipe with this,
The advantages of heat transfer area is big, thermal (temperature difference) stress is small and the accumulation of energy of phase-change material monomer is high, accumulation of energy process isothermal occurs, makes solar energy evacuated
4 thermal-arrest of thermal-collecting tube is more efficient, while having had both heat storage function.
3. the in the shade face of high-boron-silicon glass pipe 9 of the present invention is partially coated with reflectance coating 10, pass through reflectance coating 10
The sunlight of oblique fire to outer tube is reflected into 8 outer surface of metal inner pipe, by the coating for selective absorption institute of 8 outer surface of metal inner pipe
It absorbs, reduces illumination loss late, improve collecting efficiency.
The electrically heated rod 22 4. 11 inner cavity of water collector setting of the present invention is catchmented, 13 inner cavity of hot water setting electricity add
Hot pin 16 is used as auxiliary thermal source, can meet heating under various operating conditions, supplying hot water demand, and can flexible choice catchment electric heating
The unlatching combination of stick 22 or electrically heated rod 16 is conducive to save more electric energy.
The technical scheme is that
A kind of multi-level phase change heat storage type solar heating, hot-water supply system, main body include feed-tank 1, vacuum tank 2, water segregator 3,
Solar vacuum heat-collecting pipe 4, water collector 11, hot water 13, radiator 18, shower nozzle 19, tap 20, structure feature
Be: 1 import of feed-tank connects tap water by feedwater piping 25, and the outlet of feed-tank 1 is connected with 2 import of vacuum tank, vacuum tank 2
Outlet connection 3 import of water segregator, the outlet of water segregator 3 are connected with 5 import of spiral heat exchange tube；Spiral heat exchange tube 5 is arranged in solar energy
The inner cavity of evacuated collector tube 4,5 outer surface of spiral heat exchange tube and metal inner pipe 8 contact, and 8 outer surface of metal inner pipe applies selective
Vacuum layer 7 is arranged outside metal inner pipe 8 for absorber coatings, is light transmittance and all higher high-boron-silicon glass of intensity outside vacuum layer 7
Pipe 9, the in the shade face of high-boron-silicon glass pipe 9 are coated with reflectance coating 10, and the surface area of reflectance coating 10 accounts for 9 table of high-boron-silicon glass pipe
The 1/3 ~ 1/2 of area；First order phase change material 6 is filled in 4 inner cavity gap section of spiral heat exchange tube 5 and solar vacuum heat-collecting pipe；
The outlet of spiral heat exchange tube 5 is connected with 11 import of water collector, and water collector 11 is double-layer tube wall structure, fills second level between two layers of tube wall
The 22 sum aggregate hydro-thermal galvanic couple 23 of electrically heated rod that catchments is arranged in phase-change material 12,11 inner cavity of water collector；The outlet of water collector 11 setting hot water
Pipeline 17 and hot duct 21, wherein hot water pipeline 17 is connected with 13 import of hot water, and double-layer tube wall is arranged in hot water 13
Structure fills three-level phase-change material 15, setting thermocouple 14 and electrically heated rod 16 in hot water 13, hot water between double-layer tube wall
The outlet of water tank 13 is separately connected shower nozzle 19 and tap 20；The outlet of hot duct 21 is connected with 18 import of radiator, heating
Piece 18 is connected by water return pipeline 24 and feed-tank 1, to constitute whole system.
A kind of multi-level phase change heat storage type solar heating of the present invention, hot-water supply system, working principle are: to
Water tank 1 is filled with a certain amount of water by feedwater piping 25, and certain pressure is arranged to vacuum tank 2 according to use demand, sets being less than
When constant-pressure, vacuum tank 2 draws water from feed-tank 1 to be sent to water segregator 3, and moisture road is sent to solar energy vacuum heat collecting by water segregator 3
Each spiral heat exchange tube 5 of 4 inner cavity of pipe；In the case of daylight, cold water flows through spiral heat exchange tube 5, absorbs from sunlight
According to heat, meanwhile, first order phase change material 6 absorb waste heat, carry out heat accumulation.Cold water flows through spiral heat exchange tube 5 and is heated, into
Enter in water collector 11；Hot water conditions in water collector 11 are divided into two kinds of situations: the heat under the service condition of end, in water collector 11
Water a part enters 13 supplying hot water of hot water by hot water pipeline 17, and another part enters radiator 18 by hot duct 21
It heats, extra heat transfer carries out heat accumulation to second-order phase transistion material 12；In the case where end does not use, water collector 11
Interior hot water passes through hot water pipeline 17 first and hot water 13 is full of to user's use, after hot water 13 is full of, water collector
The waste heat of hot water will be passed to second-order phase transistion material 12 and carry out heat accumulation in 11；Hot water in hot water 13 is not using feelings
Under condition, waste heat is passed to three-level phase-change material 15 and is stored；When whole system enters no light condition, first order phase change
Material 6, second-order phase transistion material 12, three-level phase-change material 15 take place phase transformation carry out heat release, to solar vacuum heat-collecting pipe 4,
Water collector 11, hot water 13 water heated；When water temperature is unable to satisfy requirement, and indoor needs heat, supply simultaneously
When hot water, the start-up operation of electrically heated rod 22 of catchmenting of 11 inner cavity of water collector guarantees the regular supply of heating, hot water；When water temperature without
Method meets requirement, but it is not necessary that when heating, the electrically heated rod 16 in hot water 13 is started to work, guarantees the supply of hot water.
Further, a kind of multi-level phase change heat storage type solar heating of the present invention, hot-water supply system, feature exist
In spiral heat exchange tube 5 is arranged in 4 inner cavity of solar vacuum heat-collecting pipe, while in spiral heat exchange tube 5 and solar energy evacuated collection
First order phase change material 6 is filled in 4 inner cavity gap section of heat pipe, with this using helical pipe is compact-sized, heat transfer area is big, the temperature difference is answered
The advantages of power is small and the accumulation of energy of phase-change material monomer is high, accumulation of energy process isothermal occurs, so that solar vacuum heat-collecting pipe 4 has both efficiently
The function of thermal-arrest and heat accumulation.
Further, a kind of multi-level phase change heat storage type solar heating of the present invention, hot-water supply system, feature exist
In the in the shade face of high-boron-silicon glass pipe 9 is coated with reflectance coating 10, and oblique fire is arrived to the sunlight of outer tube by reflectance coating 10
It is reflected into 8 outer surface of metal inner pipe, is absorbed by the coating for selective absorption of 8 outer surface of metal inner pipe, to reduce illumination loss
Rate.
Further, a kind of multi-level phase change heat storage type solar heating of the present invention, hot-water supply system, feature exist
In the first order phase change material 6 is filled in 4 inner cavity gap section of spiral heat exchange tube 5 and solar vacuum heat-collecting pipe, second level phase
Become material 12 to be filled between two layers of outer wall of water collector 11, three-level phase-change material 15 is filled in two layers of outer wall of hot water 13
Between, the characteristics of temperature does not change when on the one hand undergoing phase transition using phase-change material, temperature control function is played to the temperature of water,
Extra heat is stored by way of sensible heat and latent heat simultaneously, in case heating water uses when evening or illumination die down；It is another
Aspect is filled by Multistage dispersion, compared to concentrating heat-storing device more to save space, reduces phase-change material ulking thickness, phase transformation
Material absorption heat is more efficient, undergoes phase transition and is more easier.
Further, a kind of multi-level phase change heat storage type solar heating of the present invention, hot-water supply system, feature exist
Follow that " latent heat of phase change is big, nothing in, the selection of the first order phase change material 6, second-order phase transistion material 12, three-level phase-change material 15
Within 100 DEG C of burn into phase transition temperature " principle, to guarantee effect that good thermal storage performance, long service life, heat-exchange working medium do not gasify
Fruit can choose paraffin or other satisfactory phase-change materials, first order phase change material 6, second-order phase transistion material 12, three-level phase
Change material 15 can choose identical phase-change material also and can choose different phase-change materials.
Further, a kind of multi-level phase change heat storage type solar heating of the present invention, hot-water supply system, feature exist
In, the 16 sum aggregate water power heating rod 22 of electrically heated rod be the auxiliary thermal source in this system, the situation bad for illumination, with
Guarantee the regular supply of heating, hot water；14 sum aggregate hydro-thermal galvanic couple 23 of thermocouple is for monitoring water temperature, whether to need to open electric add
Hot pin 16 or the electrically heated rod 22 that catchments provide reference.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of multi-level phase change heat storage type solar heating, hot-water supply system.
Fig. 2 is the structural schematic diagram of solar vacuum heat-collecting pipe 4.
Specific embodiment
It is special to the present invention below in conjunction with attached drawing to keep the purposes, technical schemes and advantages of the invention patent clearer
Benefit is described in further detail.
Referring to Fig.1 ~ 2,1 import of feed-tank by feedwater piping 25 connect tap water, feed-tank 1 outlet and vacuum tank 2 into
Mouth connection, the outlet of vacuum tank 2 connection 3 import of water segregator, the outlet of water segregator 3 is connected with 5 import of spiral heat exchange tube；Spiral heat exchange tube
5 are arranged in the inner cavity of solar vacuum heat-collecting pipe 4, and 5 outer surface of spiral heat exchange tube and metal inner pipe 8 contact, 8 appearance of metal inner pipe
Face is coated with coating for selective absorption, and vacuum layer 7 is arranged outside metal inner pipe 8, is that light transmittance and intensity are all higher outside vacuum layer 7
High-boron-silicon glass pipe 9, the in the shade face of high-boron-silicon glass pipe 9 is coated with reflectance coating 10, and reflectance coating 10 selects luminous absorption rate
Material small, reflectivity is high；First order phase change material 6 is filled in 4 inner cavity space part of spiral heat exchange tube 5 and solar vacuum heat-collecting pipe
Point, first order phase change material 6 selects that latent heat of phase change is big, corrosion-free, 100 DEG C of materials below of phase transition temperature, such as paraffin；Spiral heat exchange
The outlet of pipe 5 is connected with 11 import of water collector, and water collector 11 is double-layer tube wall structure, fills second-order phase transistion material between two layers of tube wall
12, the selection of second-order phase transistion material 12 equally follows " latent heat of phase change is big, corrosion-free, 100 DEG C of phase transition temperature or less " principle, can be with
Select paraffin or other phase-change materials met the requirements；The 22 sum aggregate hydro-thermal galvanic couple of electrically heated rod that catchments is arranged in 11 inner cavity of water collector
23, the electrically heated rod 22 that catchments is used as system auxiliary thermal source；The outlet of water collector 11 setting hot water pipeline 17 and hot duct 21,
Wherein, hot water pipeline 17 is connected with 13 import of hot water, and double-layer tube wall structure is arranged in hot water 13, is filled out between double-layer tube wall
Fill three-level phase-change material 15, the selection of three-level phase-change material 15 and the selection principle of first order phase change material 6, second-order phase transistion material 12
Unanimously；Setting thermocouple 14 and electrically heated rod 16 in hot water 13, the outlet of hot water 13 are separately connected 19 He of shower nozzle
Tap 20；The outlet of hot duct 21 is connected with 18 import of radiator, and radiator 18 is connected by water return pipeline 24 and feed-tank 1
It connects, to constitute whole system.
Specific implementation process is as follows: feed-tank 1 is filled with a certain amount of water by feedwater piping 25, according to use demand to steady
Press tank 2 that certain pressure is set, when being less than setting pressure, vacuum tank 2 draws water from feed-tank 1 to be sent to water segregator 3, water segregator 3
Moisture road is sent to each spiral heat exchange tube 5 of 4 inner cavity of solar vacuum heat-collecting pipe；In the case of daylight, cold water flows through spiral shell
Heat exchanger tube 5 is revolved, the heat from solar irradiation is absorbed, meanwhile, first order phase change material 6 absorbs waste heat, carries out heat accumulation.It is cold
Water flows through spiral heat exchange tube 5 and is heated, into water collector 11；Hot water conditions in water collector 11 are divided into two kinds of situations: at end
It holds under service condition, hot water a part in water collector 11 enters 13 supplying hot water of hot water, another portion by hot water pipeline 17
Divide and heated by hot duct 21 into radiator 18, extra heat transfer gives second-order phase transistion material 12 to carry out heat accumulation；
In the case where end does not use, the hot water in water collector 11 passes through hot water pipeline 17 first and hot water 13 is full of to user
It uses, after hot water 13 is full of, the waste heat of hot water will be passed to second-order phase transistion material 12 and carry out heat accumulation in water collector 11；
Waste heat is passed to three-level phase-change material 15 and is stored by the hot water in hot water 13 when not using；Entirely
When system enters no light condition, phase transformation takes place in first order phase change material 6, second-order phase transistion material 12, three-level phase-change material 15
Heat release is carried out, the water of solar vacuum heat-collecting pipe 4, water collector 11, hot water 13 is heated；Make when water temperature is unable to satisfy
With requiring, and indoor needs heat simultaneously, supplying hot water when, the start-up operation of electrically heated rod 22 of catchmenting of 11 inner cavity of water collector guarantees
The regular supply of heating, hot water；Electric heating when water temperature is unable to satisfy requirement, but is not necessarily to heat, in hot water 13
Stick 16 is started to work, and guarantees the supply of hot water.
The selection of the first order phase change material 6, second-order phase transistion material 12, three-level phase-change material 15 can choose same
Material, also can choose different materials, only need to meet wanting for " latent heat of phase change being big, corrosion-free, 100 DEG C of phase transition temperature temperature or less "
It asks.
The 14 sum aggregate water power heating rod 20 of electrically heated rod is the auxiliary thermal source of whole system, extraneous unglazed for coping with
According to the case where, according to use demand, can both open simultaneously, can also individually open.
In conclusion the above is merely preferred embodiments of the present invention, being not intended to limit the scope of the present invention.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this patent
Within protection scope.
Claims (7)
1. a kind of multi-level phase change heat storage type solar heating, hot-water supply system, main body includes feed-tank (1), vacuum tank (2), divides
Hydrophone (3), solar vacuum heat-collecting pipe (4), water collector (11), hot water (13), radiator (18), shower nozzle (19),
Tap (20), structure feature is:
Feed-tank (1) import connects tap water by feedwater piping (25), and feed-tank (1) outlet is connected with vacuum tank (2) import,
Vacuum tank (2) outlet connection water segregator (3) import, water segregator (3) outlet are connected with spiral heat exchange tube (5) import；Spiral heat exchange
(5) setting is managed in the inner cavity of solar vacuum heat-collecting pipe (4), spiral heat exchange tube (5) outer surface and metal inner pipe (8) contact, gold
Belong to inner tube (8) outer surface and be coated with coating for selective absorption, vacuum layer (7) is set outside metal inner pipe (8), vacuum layer (7) is external
For all higher high-boron-silicon glass pipe (9) of light transmittance and intensity, the in the shade face of high-boron-silicon glass pipe (9) is coated with reflectance coating
(10)；First order phase change material (6) is filled in spiral heat exchange tube (5) and solar vacuum heat-collecting pipe (4) inner cavity gap section；Spiral
Heat exchanger tube (5) outlet is connected with water collector (11) import, and water collector (11) is double-layer tube wall structure, fills two between two layers of tube wall
Electrically heated rod (22) the sum aggregate hydro-thermal galvanic couple (23) that catchments is arranged in grade phase-change material (12), water collector (11) inner cavity；Water collector (11)
Outlet setting hot water pipeline (17) and hot duct (21), wherein hot water pipeline (17) is connected with hot water (13) import, heat
Double-layer tube wall structure is arranged in water tank (13), fills three-level phase-change material (15) between double-layer tube wall, sets in hot water (13)
Thermocouple (14) and electrically heated rod (16) are set, hot water (13) outlet is separately connected shower nozzle (19) and tap (20)；
Hot duct (21) outlet is connected with radiator (18) import, and radiator (18) is connected by water return pipeline (24) and feed-tank (1)
It connects, to constitute whole system.
2. a kind of multi-level phase change heat storage type solar heating, hot-water supply system, working principle are: feed-tank (1) pass through to
Waterpipe (25) is filled with a certain amount of water, and certain pressure is arranged to vacuum tank (2) according to use demand, is being less than setting pressure
When, vacuum tank (2) draws water from feed-tank (1) to be sent to water segregator (3), and moisture road is sent to solar energy evacuated collection by water segregator (3)
Each spiral heat exchange tube (5) of heat pipe (4) inner cavity；In the case of daylight, cold water flows through spiral heat exchange tube (5), and absorption comes from
In the heat of solar irradiation, meanwhile, first order phase change material (6) absorbs waste heat, carries out heat accumulation；Cold water flows through spiral heat exchange tube
(5) it is heated, it is interior into water collector (11)；Hot water conditions in water collector (11) are divided into two kinds of situations: in end service condition
Under, hot water a part in water collector (11) enters hot water (13) supplying hot water by hot water pipeline (17), and another part is logical
It crosses hot duct (21) to heat into radiator (18), extra heat transfer is stored up to second-order phase transistion material (12)
Heat；In the case where end does not use, the hot water in water collector (11) passes through hot water pipeline (17) for hot water (13) first
Full of using to user, after hot water (13) is full of, the waste heat of water collector (11) interior hot water will be passed to second-order phase transistion
Material (12) carries out heat accumulation；Hot water in hot water (13) passes to three-level phase transformation when not using, waste heat
Material (15) is stored；When whole system enters no light condition, first order phase change material (6), second-order phase transistion material (12), three
Grade phase-change material (15) takes place phase transformation and carries out heat release, to solar vacuum heat-collecting pipe (4), water collector (11), hot water
(13) water is heated；When water temperature is unable to satisfy requirement, and indoor needs heat simultaneously, supplying hot water when, water collector
(11) electrically heated rod that catchments (22) of inner cavity is started to work, and guarantees the regular supply of heating, hot water；When water temperature is unable to satisfy use
It is required that but it is not necessary that when heating, the electrically heated rod (16) in hot water (13) is started to work, guarantee the supply of hot water.
3. a kind of multi-level phase change heat storage type solar heating according to claim 1 or 2, hot-water supply system, feature exist
In spiral heat exchange tube (5) are arranged in the solar vacuum heat-collecting pipe (4) inner cavity, while in spiral heat exchange tube (5) and solar energy
First order phase change material (6) are filled in evacuated collector tube (4) inner cavity gap section, with this using helical pipe is compact-sized, heat-transfer area
The advantages of product is big, thermal (temperature difference) stress is small and the accumulation of energy of phase-change material monomer is high, accumulation of energy process isothermal occurs, so that solar energy vacuum heat collecting
Pipe (4) has both the function of efficient heat-collecting and heat accumulation.
4. a kind of multi-level phase change heat storage type solar heating according to claim 1 or 2, hot-water supply system, feature exist
In described high-boron-silicon glass pipe (9) the in the shade face is coated with reflectance coating (10), and outer tube is arrived in oblique fire by reflectance coating (10)
Sunlight be reflected into metal inner pipe (8) outer surface, absorbed by the coating for selective absorption of metal inner pipe (8) outer surface, with
Reduce illumination loss late.
5. a kind of multi-level phase change heat storage type solar heating according to claim 1 or 2, hot-water supply system, feature exist
In, the first order phase change material (6) is filled in spiral heat exchange tube (5) and solar vacuum heat-collecting pipe (4) inner cavity gap section,
Second-order phase transistion material (12) is filled between two layers of outer wall of water collector (11), and three-level phase-change material (15) is filled in hot water
(13) between two layers of outer wall, the characteristics of temperature does not change when on the one hand being undergone phase transition using phase-change material, to the temperature of water
Degree plays temperature control function, while extra heat is stored by way of sensible heat and latent heat, when in case evening or illumination dying down
Water is heated to use；On the other hand, it is filled by Multistage dispersion, compared to concentrating heat-storing device more to save space, reduces phase transformation material
Expect ulking thickness, phase-change material absorption heat is more efficient, undergoes phase transition and is more easier.
6. a kind of multi-level phase change heat storage type solar heating according to claim 1 or 2, hot-water supply system, feature exist
In the selection of the first order phase change material (6), second-order phase transistion material (12), three-level phase-change material (15) follows " latent heat of phase change
Greatly, corrosion-free, within 100 DEG C of phase transition temperature " principle, to guarantee that good thermal storage performance, long service life, heat-exchange working medium do not gasify
Effect, can choose paraffin or other satisfactory phase-change materials, first order phase change material (6), second-order phase transistion material
(12), three-level phase-change material (15), which can choose identical phase-change material also, can choose different phase-change materials.
7. a kind of multi-level phase change heat storage type solar heating according to claim 1 or 2, hot-water supply system, feature exist
In the electrically heated rod (16) sum aggregate water power heating rod (22) is the auxiliary thermal source in this system, the feelings bad for illumination
Condition, to guarantee the regular supply of heating, hot water；Whether thermocouple (14) sum aggregate hydro-thermal galvanic couple (23) is for monitoring water temperature, to need
It opens electrically heated rod (16) or the electrically heated rod that catchments (22) provides reference.
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| CN110762581A (en) * | 2019-10-10 | 2020-02-07 | 中国科学院上海应用物理研究所 | System for heat pipe provides stable hot water in coordination with medium-high temperature phase change heat storage medium |
| CN110864572A (en) * | 2019-10-18 | 2020-03-06 | 福建工程学院 | Renewable energy utilization system based on energy storage type heat pipe bundle and control method thereof |
| CN111979871A (en) * | 2020-07-21 | 2020-11-24 | 河海大学 | Bridge deck deicing, energy storage and power generation device based on energy piles and construction method |
| CN112178953A (en) * | 2020-10-28 | 2021-01-05 | 山东力诺瑞特新能源有限公司 | Solar water heating system with temperature control phase change heat storage function |
| CN113531944A (en) * | 2021-06-25 | 2021-10-22 | 北京工业大学 | Double-effect three-phase energy storage and absorption type refrigerating system |
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Application publication date: 20191001 |