CN105444430B - A kind of solar water heater based on parabolic trough type light and heat collection - Google Patents
A kind of solar water heater based on parabolic trough type light and heat collection Download PDFInfo
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- CN105444430B CN105444430B CN201511002722.1A CN201511002722A CN105444430B CN 105444430 B CN105444430 B CN 105444430B CN 201511002722 A CN201511002722 A CN 201511002722A CN 105444430 B CN105444430 B CN 105444430B
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/71—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with parabolic reflective surfaces
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- 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
- F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
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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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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The present invention discloses a kind of solar water heater based on parabolic trough type light and heat collection, it is characterised in that mainly include that steam vent, attemperater housing, tapping pipe, cold water pipe, water tank end cap, hot-water line, parabola groove reflector, all-glass vacuum thermal-collecting tube, leg, thermal-collecting tube focus support member, constant pressure valve, upper circular tube, cold water storage cistern, boiler, phase-change thermal storage layer, silica gel leather packing, metal cover, grass tube, silica gel leather sheath, lower circulation pipe, horizontal baffle and reflector floor；Described attemperater housing includes that water tank inner shell and tank shell, water tank inner shell are water tank heat-insulation layers, is close on tank shell medial surface.This water heater uses parabolic trough type heat collector to replace the vacuum tube of many arrangements on market, improves water heater collecting efficiency while being substantially reduced cost, decreases the accumulation of hot water in vacuum tube, and conveniently maintenance and the scale removal of vacuum tube.
Description
Technical field
The present invention relates to technical field of solar utilization technique, a kind of based on parabolic trough type light and heat collection too
Sun energy water heater, a kind of hot water applying parabolic trough type heat collector to provide the user domestic hot-water
Device.
Background technology
Traditional energy is the most in short supply, and accelerating development regenerative resource has become countries in the world common recognition, the wherein sun
Aspect can be needed as the one of regenerative resource to have multiple use in people's lives, such as generating, warm oneself,
Supplying hot water etc..But the only solar water heater in market at present, can be supplied in a large number with commercial form.Too
Sun can realize, by solar energy to hot transformation of energy, improving hot water or thermal source for user's productive life by water heater.Typically too
Sun can be made up of heat collector, adiabatic water storage tank, connection pipeline, support and control system by water heater.Heat collector
Being the solar water heater core component and the key problem in technology that convert solar radiation into heat energy, its cost accounts for too
About 1/2nd of sun energy water heater total cost.At present solar water heater's industry of China in application scale and
All in first place, the world in production capacity, it is the most genuine solar water heater largest production, confession
Ying Guo, while it is true, China's solar water heater industry is still a new industry, compares with other industries,
Still being in the early stage of development, have many problems to need progressively and solve, such as its popularity rate is the lowest, the product of product
Kind, function and quality can not meet the most far away needs.
Solar water heater in the market is primarily present following deficiency: 1. collecting efficiency is low, generally requires
Daylong sunshine could shine heat water, and when also can only ensure the when that weather being good at dusk, in water tank, water temperature reaches
Using requirement, daytime and most of the time at night can be used without hot water, and comfortableness is poor；2. water tank heat preserving poor performance
And hot water line is up to tens meters, add remaining a lot of hot water in thermal losses pipeline simultaneously；3. mesh
Solar water heater more than 99% on front market is all that the non-pressure-bearing type water heater fallen behind very much (is commonly called as overboard
Formula), its water inlet, water outlet only have a water pipe, use very inconvenient, more say without comfortable；4. water heater
Quality is uneven, some water heater low costs, but efficiency is the lowest, service life short (substantially 6～
10 months), though some water-heater efficiency is high, but processing technique is complicated, and cost is the highest, is not easy to popularize；
5. on market, wide variety of solar vacuum-tube water heater is due to vacuum tube dense arrangement, once catching dust
Spot, it has not been convenient to cleaning, affects collecting efficiency.
The solar water heater that the present invention proposes can effectively reduce heat while solving the problems referred to above well
Hydrophone expense, improves the system effectiveness of Solar use, saves the energy, beneficially environmental conservation.
Summary of the invention
For the deficiencies in the prior art, the technical problem that the present invention intends to solve is to provide a kind of based on parabola groove
The solar water heater of formula light and heat collection.Traditional solar vacuum-tube water heater needs many with vacuum tube arrangement
Increase collector area.Parabolic trough type heat collector belongs to middle high temperature heat collector category, it is possible to obtain higher collection
Hot temperature.The advantage of parabolic trough type heat collector maximum is that it can provide the light of high fluence density, enables
In quantity set thus reduce heat loss, and instead of relatively costly true with relatively inexpensive parabola groove reflector
Blank pipe, can also constantly adjust turning to of parabola groove reflector while reducing the cost of whole system
Obtain more solar radiation, thus improve the Heat-collecting effect of heat collector.The structure of attemperater is through special
Design and parabola groove reflector perfect cooperation so that the collecting efficiency of this water heater significantly improves, and is incubated
Water tank quantity of heat storage is strengthened.
The present invention solves the technical scheme of described technical problem: design is a kind of based on parabolic trough type light and heat collection
Solar water heater, it is characterised in that mainly include steam vent, attemperater housing, tapping pipe, cold water
Pipe, water tank end cap, hot-water line, parabola groove reflector, all-glass vacuum thermal-collecting tube, leg, thermal-collecting tube are fixed
Burnt support member, constant pressure valve, upper circular tube, cold water storage cistern, boiler, phase-change thermal storage layer, silica gel leather packing,
Metal cover, grass tube, silica gel leather sheath, lower circulation pipe, horizontal baffle and reflector floor；Described guarantor
Reservoir housing includes that water tank inner shell and tank shell, water tank inner shell are water tank heat-insulation layers, is close to tank shell
On medial surface.
Described attemperater housing is arranged on the top of leg, and steam vent is arranged at the top of attemperater housing,
Tapping pipe is arranged at the bottom of attemperater housing, and water tank end cap is positioned on the right side of attemperater housing；
Described constant pressure valve is arranged on steam vent.
Described horizontal baffle is arranged on the inside of attemperater housing, and and water tank inner shell between compact siro spinning technology,
The inner space of attemperater housing is divided into upper and lower two parts, and top is divided into cold water storage cistern, bottom to be divided into
Boiler；Have aperture on water tank end cap position corresponding to the space at cold water storage cistern place, aperture is provided with
Cold water pipe；Have aperture on water tank end cap position corresponding to the space at boiler place, aperture is provided with
Cold water pipe.
Have multiple aperture on described horizontal baffle, aperture is provided with upper circular tube upward and down under
Circulation pipe, upper circular tube and lower circulation pipe lay respectively in cold water storage cistern and boiler；Immediately below lower circulation pipe
Having hole on the bottom of attemperater housing, lower circulation pipe is through this hole by silica gel leather sheath with grass tube even
Connect；Grass tube is positioned at the outside of boiler, is cased with all-glass vacuum thermal-collecting tube, all-glass vacuum outside it
The opening of thermal-collecting tube is sealingly mounted at the insulation water immediately below lower circulation pipe by silica gel leather packing and metal cover
In the hole of the bottom of tank shell.
Described phase-change thermal storage layer is arranged on the water tank inner shell within boiler.
Described parabola groove reflector is arranged on the lower section of all-glass vacuum thermal-collecting tube.
The back side of described parabola groove reflector is provided with reflector floor, is used for preventing parabola groove reflector from occurring
Deformation.
It is multiple that described thermal-collecting tube focuses support member, is enclosed within the outside tube wall of all-glass vacuum thermal-collecting tube.
Compared with prior art, it has the beneficial effects that the present invention: this water heater only needs three thermal-collecting tubes and three
Individual parabola groove, so that it may realize high efficiency thermal-arrest, the most largely decrease cost, and decrease
The waste of water resource, convenient maintenance scale removal.Attemperater uses phase-change material accumulation of heat, efficiently solves white
It problem under-supply with the hot water at night, and the water temperature of water tank can be stablized, make water heater keep efficiently
The running of rate, meets the comfortableness requirement of user.This water heater validity period is unrestricted, it is possible to the whole year makes
With and water inlet pipe and outlet pipe are installed, very easy to use, and cheap, safeguard simple, dismounting
Freely, it is highly susceptible to mass production, has the biggest market prospect.
Accompanying drawing explanation
Fig. 1 is the whole of the present invention a kind of embodiment of a kind of solar water heater based on parabolic trough type light and heat collection
Body structure chart.
Fig. 2 is cuing open of a kind of a kind of embodiment of solar water heater based on parabolic trough type light and heat collection of the present invention
View.
Fig. 3 is the phase of the present invention a kind of embodiment of a kind of solar water heater based on parabolic trough type light and heat collection
Become reservoir longitudinal cross-section structural representation.
Fig. 4 is the water of the present invention a kind of embodiment of a kind of solar water heater based on parabolic trough type light and heat collection
Circulation schematic diagram.
Fig. 5 is the throwing of the present invention a kind of embodiment of a kind of solar water heater based on parabolic trough type light and heat collection
Structural representation during thing groove reflector left-hand thread.
Detailed description of the invention
It is further discussed below the present invention below in conjunction with the accompanying drawings.
The present invention is that a kind of solar water heater based on parabolic trough type light and heat collection (is called for short water heater, sees
Fig. 1-5), it is characterised in that mainly include steam vent 1, attemperater housing 2, tapping pipe 3, cold water pipe 4,
Water tank end cap 5, hot-water line 6, parabola groove reflector 7, all-glass vacuum thermal-collecting tube 8, leg 9, thermal-arrest
Pipe focuses support member 10, constant pressure valve 11, upper circular tube 13, cold water storage cistern 14, boiler 15, phase transformation storage
Thermosphere 16, silica gel leather packing 18, metal cover 19, grass tube 20, silica gel leather sheath 21, lower circulation pipe 22,
Horizontal baffle 24 and reflector floor 25；Described attemperater housing 2 includes water tank inner shell 201 and water tank
Shell 202, water tank inner shell 201 is water tank heat-insulation layers, is close on tank shell 202 medial surface.
Described attemperater housing 2 is arranged on the top of leg 9, and steam vent 1 is arranged at attemperater housing
The top of 2, tapping pipe 3 is arranged at the bottom of attemperater housing 2, and water tank end cap 5 is positioned at attemperater
On the right side of housing 2.Described constant pressure valve 11 is arranged on steam vent 1.
Described horizontal baffle 24 is arranged on the inside of attemperater housing 2, and and water tank inner shell 201 between tight
Close connection, is divided into upper and lower two parts by the inner space of attemperater housing 2, and top is divided into cold water storage cistern
14, bottom is divided into boiler 15.Open on water tank end cap 5 position corresponding to space at cold water storage cistern 14 place
There is aperture, aperture is provided with cold water pipe 4.The water tank end cap 5 corresponding to space at boiler 15 place
Have aperture on Wei, aperture is provided with cold water pipe 6.
Have multiple aperture on described horizontal baffle 24, aperture is provided with upper circular tube 13 upward and court
Under lower circulation pipe 22, upper circular tube 13 and lower circulation pipe 22 lay respectively at cold water storage cistern 14 and boiler 15
In.Having hole on the bottom of the attemperater housing 2 immediately below lower circulation pipe 22, lower circulation pipe 22 passes
This hole is connected with grass tube 20 by silica gel leather sheath 21.Grass tube 20 is positioned at the outside of boiler, its
Outside is cased with all-glass vacuum thermal-collecting tube 8, and the opening of all-glass vacuum thermal-collecting tube 8 passes through silica gel leather packing 18
In the hole of the bottom being sealingly mounted at attemperater housing 2 immediately below lower circulation pipe 22 with metal cover 19.
Described phase-change thermal storage layer 16 is arranged on the water tank inner shell 201 within boiler 15.
Described parabola groove reflector 7 is arranged on the lower section of all-glass vacuum thermal-collecting tube 8.
The back side of described parabola groove reflector 7 is provided with reflector floor 25, is used for preventing parabola groove reflector
7 deform upon, and also can play a protective role it simultaneously.
It is multiple that described thermal-collecting tube focuses support member 10, is enclosed within the outside tube wall of all-glass vacuum thermal-collecting tube 8
On.
Described leg 9 is inverted " V " type hollow slope structure, and one of them slope is by two supporting leg groups
Becoming, another slope is the ladder configuration being made up of multiple crosspieces, two supporting legs.Described attemperater
Housing 2 is arranged on the top of the inverted " V " type of leg 9, and parabola groove reflector 7 is arranged on the ladder type of leg 9
On slope, all-glass vacuum thermal-collecting tube 8 is arranged on parabola groove reflector 7, and parabola groove reflector 7
Can rotate around the axle center of all-glass vacuum thermal-collecting tube 8.
Described phase-change thermal storage layer 16 be shell be steel construction, the internal structure filling phase-change material, shape is substantially
For open column shape, it is fitted on the inwall of boiler 15 and horizontal baffle 24 is played a supportive role.Follow under
Below endless tube 22 just to phase-change thermal storage layer 16 on have notch, the size of notch and all glass vacuum heat collecting
Pipe 8 lateral cross-sectional area is identical.The end face of phase-change thermal storage layer 16 laterally has a conduit, notch, conduit and its
Internal connection, multiple apertures that horizontal baffle 24 has all connect with described conduit, and be arranged on level every
Lower circulation pipe 22 on plate 24 can be simultaneously straight across conduit and the notch of phase-change thermal storage layer 16.
Described attemperater housing 2 is cylindrical, now phase-change thermal storage layer 16 be generally shaped like 2/3 sky
Heart cylinder ring (as shown in Figure 3).
Opening is had, it is simple to can directly use after opening water tank end cap 5 in its right end face of described phase-change thermal storage layer 16
Power, in this side end face, is extracted phase-change thermal storage layer 16 out and is overhauled or change.
Described parabola groove reflector 7, all-glass vacuum thermal-collecting tube 8 and thermal-collecting tube focus support member 10 and form
Parabolic trough type heat collector.Parabola groove reflector 7 can rotate around the axle center of all-glass vacuum thermal-collecting tube 8, permissible
Manually regulation is with the alignment sun to obtain maximum heat-collecting capacity, and this water heater uses and all-glass vacuum thermal-collecting tube
8 (model is 58/47 × 1800mm) properly mixed parabola groove reflector 7, can meet at sunshine strong
Time period (3: 30 at 10 o'clock in the morning to afternoon), through parabola groove reflector 7 reflection light still according to
Penetrating on all-glass vacuum thermal-collecting tube 8, now the geometric concentrating ratio of parabolic trough type heat collector is 8, and focal length is
80mm.When running into the vile weathers such as hail, parabola groove reflector 7 can come with left-hand thread, protects full glass
Vacuum heat collection pipe 8 is not destroyed.Parabola groove reflector 7 back is equipped with the reflector rib playing setting effect simultaneously
Plate 25, such as Fig. 5.
Described phase-change thermal storage layer 16 is generally shaped like 2/3 open circles band of column (as shown in Figure 3), cylinder ring
Outside have certain intensity for steel construction, and internal phase-change material, phase transition temperature and the phase change layer thickness of being full of needs
Choose as required, be also considered as economy simultaneously.Phase-change thermal storage layer 16 is attached on water tank inner shell 201,
Open circles band of column bottom notch width is all-glass vacuum thermal-collecting tube 8 outer diameter length, and its axle center is water tank axle
The heart, open circles band of column upper support horizontal baffle 24.Cold water pipe 4 and hot-water line are installed on water tank end cap 5
6, use between water tank end cap 5 with attemperater housing 2 and threaded, can dismantle, facilitate inside water tank
Phase-change material in scale removal and inspection phase-change thermal storage layer 16 has No leakage.During dismounting, both hands hold cold water pipe
4 and hot-water line 6 to external rotation, make water tank end cap 5 separate with attemperater 1, check attemperater close
Envelope situation, extracts phase-change thermal storage layer 16 out, checks whether its phase-change material leaks or be periodically replaced.
Seven holes are left, both sides, hole four upper circular tubes 13 of correspondence welding respectively on described horizontal baffle 24
With three lower circulation pipes 22, horizontal baffle 24 is welded at attemperater is longitudinal 1/3, by phase-change thermal storage
Layer 16 supports and does encapsulation process, and weld does preservative treatment, thus cold by being divided into inside attemperater
Water tank 14 and boiler 15.The location of three lower circulation pipes 22 is respectively at horizontal baffle 24 longitudinal length
1/6, at 1/2,5/6, four upper circular tubes 13 are evenly distributed between lower circulation pipe 22 two-by-two, under follow
Endless tube 22 length extends to be connected with grass tube 20 bottom attemperater and by silica gel leather sheath 21, glass
Conduit 20 extend into the bottom of all-glass vacuum thermal-collecting tube 8.All-glass vacuum thermal-collecting tube 8 and attemperater shell
Body 2 is by the female thread engagement at the external screw thread of metal end 19 and attemperater shell 202 base apertures even
Connect, be squeezed in the silica gel between metal end 19 and attemperater inner shell 201 by rotating metallic end cap 19
Leather packing 18 realizes all-glass vacuum thermal-collecting tube 8 and is fastenedly connected with attemperater housing 2, reach seal request (as
Shown in Fig. 2).
The water circular flow principle of this water heater is explained in detail below, sees Fig. 4.
Before water heater runs, first adjusting water heater orientation and the position of parabola groove reflector 7, parabola groove is anti-
Sunlight is reflexed to carry out thermal-arrest on the tube wall of all-glass vacuum thermal-collecting tube 8 by emitter 7, and cold water is from cold water pipe 4
Delivering into attemperater, because of the iris action of horizontal baffle 24, the upper strata that cold water is in attemperater is the coldest
In water tank 14, then entered into full glass by action of gravity cold water through lower circulation pipe 22 and grass tube 20 true
The bottom of empty set heat pipe 8, gradually absorbs the temperature of all-glass vacuum thermal-collecting tube 8 tube wall, temperature high-density
Reduce, be gradually increasing in entrance boiler 15, use requirement can discharge from hot-water line 6 as water temperature meets
(current move towards as shown in black Bold arrows in Fig. 4), if water temperature is unsatisfactory for using requirement or user anxious
In use, then the water level in boiler 15 is gradually increasing, along with the rising of water level, the air of boiler 15
Gradually passing through upper circular tube 13 to be pressed in cold water storage cistern 14, pressure experienced by the constant pressure valve 11 on steam vent 1
Automatic aerofluxus (gas moves towards such as black arrow in Fig. 4) is carried out after power.Water level is still rising, and gradually passes through
Upper circular tube 13 enters in cold water storage cistern 14, when the water level in cold water storage cistern 14 reaches limit value, stops toward cold
Carrying cold water in water pipe 4, the water in such water heater starts Natural Circulation, and then boiler 15 because of density contrast
In water temperature constantly raise, when the phase transition temperature of phase-change material during temperature reaches phase-change thermal storage layer 16, phase transformation
Material starts to melt, and strengthens the quantity of heat storage of attemperater further, also makes all-glass vacuum thermal-collecting tube simultaneously
Water temperature in 8 will not be too high, and water temperature is the biggest with the tube wall temperature difference, meets preferable heat exchange, thus improves
Collecting efficiency.
According to above-mentioned principle, having built collector area is 1.54m2The sun based on parabolic trough type light and heat collection
Energy water heater laboratory table, does not installs horizontal baffle and is not added with phase-change thermal storage layer yet in water tank.With reference to national standard
GB/T 12915-91 and GB/T 18708-2002 carries out experimental test, by measuring the water temperature of attemperater
Calculate heat collector heat, in water tank, arrange three measuring points of upper, middle and lower so that more accurate observation water
Temperature situation of change, takes its mean temperature as water tank water temperature.Experimentation uses two groups of parabolic trough type thermal-arrests
Device is tested, water heater major parameter: parabolic trough type heat collector geometric concentrating ratio is 8.2, parabolic face length
1710mm, parabolic face width 450mm, parabola focal length 84mm, storage tank capacity 100L, all-glass vacuum collection
Heat pipe specification 58/47 × 1800, water capacity: 2.75L.Water heater thing is arranged, is oriented positive south orientation；Adjust
The inclination angle of whole parabola groove reflector so that the shade of vacuum tube falls in the central authorities of parabola groove reflector, is now
Best angle, typically using the complementary angle of sun altitude during high noon as the inclination angle of parabola groove reflector.Experiment is surveyed
Obtaining thermal-arrest total energy rate be 0.381W, and corresponding etendue is 0.481kW/m2.Experiment simultaneously records parabolic trough type collection
Hot device mean daily discharge under Natural Circulation effect general between 45%～50%, ambient temperature around
Time close with wind speed, along with water just temperature rise, mean daily discharge declines, but fluctuation range is not very big, body
Reveal parabolic trough type heat collector and can convert light energy into heat energy efficiently in higher temperature section.Record water heater
The heat loss of system is 1.05W/ (DEG C) left and right, embodies water heater heat-insulating property good.Day useful
Heat is at 9.5MJ/m2Left and right, more than standard value 7.5MJ/m2, it is seen that two groups of areas are 0.77m2Parabola groove
Formula heat collector is equipped with the water tank of 100L just can reach standard-required.When installing the horizontal baffle being beneficial to waterway circulating
With increase attemperater amount of stored heat phase-transition heat-storage layer time, the performance of water heater will promote further, so
This kind of solar water appliance based on parabolic trough type light and heat collection has good solar collecting performance and market prospect.
This water heater uses three groups of parabolic trough type heat collectors to replace the vacuum tube of many arrangements on market, significantly
Improve water heater collecting efficiency while reducing cost, reduce the accumulation of hot water in vacuum tube, and convenient
Maintenance and the scale removal of vacuum tube.The installation of horizontal baffle in attemperater so that hot and cold water separates well,
Improving water-heater efficiency further, attemperater uses phase-change material accumulation of heat, efficiently solves daytime and night
Between the under-supply problem of hot water, and the water temperature of water tank can be controlled, make water heater keep high efficiency fortune
Make, meet the comfortableness requirement of user.This water heater is easy to use, cheap, safeguards simple, tears open
Dress freely, is highly susceptible to mass production, has the biggest market prospect.
The present invention does not addresses part and is applicable to prior art.
Claims (9)
1. a solar water heater based on parabolic trough type light and heat collection, it is characterised in that mainly include aerofluxus
Hole, attemperater housing, tapping pipe, cold water pipe, water tank end cap, hot-water line, parabola groove reflector, complete
Glass heat-collecting vacuum tube, leg, thermal-collecting tube focus support member, constant pressure valve, upper circular tube, cold water storage cistern,
Boiler, phase-change thermal storage layer, silica gel leather packing, metal cover, grass tube, silica gel leather sheath, lower circulation pipe,
Horizontal baffle and reflector floor；Described attemperater housing includes water tank inner shell and tank shell, in water tank
Shell is water tank heat-insulation layers, is close on tank shell medial surface；
Described attemperater housing is arranged on the top of leg, and steam vent is arranged at the top of attemperater housing,
Tapping pipe is arranged at the bottom of attemperater housing, and water tank end cap is positioned on the right side of attemperater housing；
Described constant pressure valve is arranged on steam vent；
Described horizontal baffle is arranged on the inside of attemperater housing, and and water tank inner shell between compact siro spinning technology,
The inner space of attemperater housing is divided into upper and lower two parts, and top is divided into cold water storage cistern, bottom to be divided into
Boiler；Have aperture on water tank end cap position corresponding to the space at cold water storage cistern place, aperture is provided with
Cold water pipe；Have aperture on water tank end cap position corresponding to the space at boiler place, aperture is provided with
Hot-water line；
Have multiple aperture on described horizontal baffle, aperture is provided with upper circular tube upward and down under
Circulation pipe, upper circular tube and lower circulation pipe lay respectively in cold water storage cistern and boiler；Immediately below lower circulation pipe
Having hole on the bottom of attemperater housing, lower circulation pipe is through this hole by silica gel leather sheath with grass tube even
Connect；Grass tube is positioned at the outside of boiler, is cased with all-glass vacuum thermal-collecting tube, all-glass vacuum outside it
The opening of thermal-collecting tube is sealingly mounted at the insulation water immediately below lower circulation pipe by silica gel leather packing and metal cover
In the hole of the bottom of tank shell；
Described phase-change thermal storage layer is arranged on the water tank inner shell within boiler；
Described parabola groove reflector is arranged on the lower section of all-glass vacuum thermal-collecting tube；
The back side of described parabola groove reflector is provided with reflector floor, is used for preventing parabola groove reflector from occurring
Deformation；
It is multiple that described thermal-collecting tube focuses support member, is enclosed within the outside tube wall of all-glass vacuum thermal-collecting tube.
Water heater the most according to claim 1, it is characterised in that described leg is that inverted " V " type is hollow
Slope construct, one of them slope is made up of two supporting legs, another slope be by multiple crosspieces,
The ladder configuration of two supporting leg compositions.
Water heater the most according to claim 2, it is characterised in that described attemperater housing is arranged on
The top of the inverted " V " type of leg, parabola groove reflector is arranged on the ladder type slope of leg, and full glass is true
Empty set heat pipe is arranged on parabola groove reflector, and parabola groove reflector can be around the axle of all-glass vacuum thermal-collecting tube
The heart rotates.
Water heater the most according to claim 1, it is characterised in that described phase-change thermal storage layer is that shell is
Steel construction, the internal structure filling phase-change material, be generally shaped like open column shape, be fitted in the interior of boiler
Play a supportive role on wall and to horizontal baffle；Below lower circulation pipe just to phase-change thermal storage layer on have notch,
The size of notch is identical with all-glass vacuum thermal-collecting tube lateral cross-sectional area；The end face of phase-change thermal storage layer is laterally opened
Having a conduit, notch, conduit internal connect with it, multiple apertures that horizontal baffle has all with described conduit
Connection, and the lower circulation pipe being arranged on horizontal baffle can be simultaneously straight across conduit and the groove of phase-change thermal storage layer
Mouthful.
5. according to the water heater described in any one of claim 1 or 3, it is characterised in that described attemperater
Housing is hollow cylinder, now phase-change thermal storage layer be generally shaped like 2/3 open circles band of column.
Water heater the most according to claim 1, it is characterised in that leave seven on described horizontal baffle
Individual hole, both sides, hole correspondence four upper circular tubes of welding and three lower circulation pipes respectively, horizontal baffle is welded on guarantor
At the 1/3 of reservoir longitudinal direction, phase-change thermal storage layer supporting and do encapsulation process, weld does preservative treatment；
The location of three lower circulation pipes at 1/6,1/2, the 5/6 of horizontal baffle longitudinal length, four is followed respectively
Endless tube is evenly distributed between lower circulation pipe two-by-two.
Water heater the most according to claim 1, it is characterised in that described all-glass vacuum thermal-collecting tube with
Attemperater housing is engaged by the female thread at the external screw thread of metal end and the hole of attemperater outer casing bottom
Connecting, the Silicone Rubber being squeezed between metal end and attemperater inner shell by rotating metallic end cap pads existing
Being fastenedly connected between all-glass vacuum thermal-collecting tube and attemperater housing.
8. according to the water heater described in any one of claim 1 or 4, it is characterised in that described phase-change thermal storage
Opening is had in its right end face of layer.
Water heater the most according to claim 1, it is characterised in that described water tank end cap and attemperater
Use detachable threaded between housing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201511002722.1A CN105444430B (en) | 2015-12-27 | 2015-12-27 | A kind of solar water heater based on parabolic trough type light and heat collection |
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| CN201511002722.1A CN105444430B (en) | 2015-12-27 | 2015-12-27 | A kind of solar water heater based on parabolic trough type light and heat collection |
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| CN105444430B true CN105444430B (en) | 2016-09-21 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN210832580U (en) * | 2019-04-17 | 2020-06-23 | 上海电力学院 | Phase-change temperature-control vacuum tube explosion-proof synergistic water heater |
| CN115325694A (en) * | 2022-06-29 | 2022-11-11 | 湖南松川爱能科技有限公司 | Heating and power supply equipment for combining solar energy with heat storage and use method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20090272373A1 (en) * | 2006-07-17 | 2009-11-05 | Ben Benjan | Hot Water Tank With A Movable Inner Partition |
| CN100578111C (en) * | 2007-10-26 | 2010-01-06 | 刘虹邑 | Solar water heater having heating function |
| CN101487637A (en) * | 2009-01-24 | 2009-07-22 | 张斌 | Separate heat exchange type solar hot water tank |
| KR101238481B1 (en) * | 2011-05-24 | 2013-03-04 | 주식회사 강남에너텍 | Centralization thermal apparatus sun thermal utilize |
| CN102767914A (en) * | 2012-07-11 | 2012-11-07 | 栗世芳 | Solar water heater |
| CN104006558B (en) * | 2014-06-09 | 2016-05-25 | 中国科学院工程热物理研究所 | A kind of hot water storage tank of new structure |
| CN205208967U (en) * | 2015-12-27 | 2016-05-04 | 河北工业大学 | Slot type thermal -arrest solar water heater |
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