CN102338484A - Composite phase change heat storage solar water heater without water tank - Google Patents
Composite phase change heat storage solar water heater without water tank Download PDFInfo
- Publication number
- CN102338484A CN102338484A CN2011102895648A CN201110289564A CN102338484A CN 102338484 A CN102338484 A CN 102338484A CN 2011102895648 A CN2011102895648 A CN 2011102895648A CN 201110289564 A CN201110289564 A CN 201110289564A CN 102338484 A CN102338484 A CN 102338484A
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- stainless steel
- composite phase
- phase change
- steel tube
- water
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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
- F24S10/40—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors
- F24S10/45—Solar heat collectors using working fluids in absorbing elements surrounded by transparent enclosures, e.g. evacuated solar collectors the enclosure being cylindrical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
- F24S60/10—Arrangements for storing heat collected by solar heat collectors using latent heat
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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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- Engineering & Computer Science (AREA)
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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 invention discloses a composite phase change heat storage solar water heater without a water tank, comprising a vestlet, a bracket, a main cold water inlet tube, a main hot water outlet tube, a polyurethane insulation coating, a solar companion, a tailstock and a plurality of vacuum heat collecting units, wherein the bracket is fixedly connected with the tailstock, all the vacuum heat collecting units are arranged on the tailstock and fixed by the bracket, and the vestlet covers outside the bracket to protect the vacuum heat collecting units; the main cold water inlet tube is connected in parallel with a plurality of cold water branched tubes respectively extending to the bottom of every layer of stainless steel tube after penetrating through a sealing plug; and the main hot water outlet tube is connected in parallel with a plurality of hot water branched tubes respectively extending to the upper part of a stainless steel tube at an inner layer after penetrating through a sealing plug. The composite phase change heat storage solar water heater without the water tank has high heat storage capacity, therefore, advanced water storage is not needed; and the composite phase change heat storage solar water heater without the water tank is directly connected with a running water system, therefore, hot water can be used at any time, and the composite phase change heat storage solar water heater without the water tank has stable water temperature and is simple and convenient to operate.
Description
Technical field
The invention belongs to solar energy heat utilization field, be specifically related to a kind of water tank free composite phase-change heat-storage solar water heater.
Background technology
In today of global energy situation anxiety, climate warming serious threat economic development and people's life health, countries in the world all seeking new energy substitution strategy, obtain superiority in the hope of sustainable development with in development in the future.Solar energy with its cleaning, continually, safety etc. significant advantage, become focal point.In the development of solar energy industry, the heat utilization switch technology of solar water heater is undoubtedly the most ripe, and its industrialization process also than industries such as photovoltaic cell, solar electrical energy generations in the lead.
Solar water heater has become China, and first realizes business-like regenerative resource industry.Under the background of supply and demand anxiety, all useful electrotonic difficult problem of each country, solar water heater is ease people electricity consumption situation in daily life to a certain extent.
Traditional solar water heater generally is made up of solar thermal collector and boiler two parts; Because water tank takes up room greatly,, can influence the city look and feel in outward appearance, quality and the city of house if install improperly; Outdoor maintenance is trouble; To last water limited time system, do not allow water after being exposed to the sun noon simultaneously, otherwise might bombing.
And existing no water tank phase change thermal storage solar water heater adopts the phase change heat storage material store heat, has saved the trouble of water tank, but has also had a little problems:
1, because water temperature surpasses 60 ℃ of the fouling points of water often, causes collector tube inner wall to tie hard scale easily, the solar collecting performance of heat collector is descended year by year;
2, the heat conductivility of traditional phase change heat storage material is very poor, makes the solar water heater inefficiency;
3, the phase-change material of traditional phase change thermal storage solar water heater employing is the solid-liquid phase change material, places in the vacuum tube, because the variation of volume in the phase transition process possibly cause vacuum tube to break.
Summary of the invention
The objective of the invention is to the deficiency to prior art, a kind of New-type phase change accumulation of heat non-water tank solar water heater is provided, the present invention directly utilizes solar radiation to add hot water, thereby can alleviate in the daily life the especially problem of the shortage of electric power in summer greatly.
The objective of the invention is to realize: a kind of no water tank composite phase-change heat-storage solar water heater through following technical scheme; It comprises: vestlet, support, total cold water inlet tube, total hot water outlet pipe, polyurethane insulation coating, solar energy companion, tailstock and some vacuum heat-collectings unit, and wherein, said support is fixedly connected with tailstock; Each vacuum heat-collecting unit all places on the tailstock; And fix by support, vestlet is coated on outside the support, protection vacuum heat-collecting unit; Each vacuum heat-collecting unit includes: inner layer stainless steel tube, composite phase change heat-accumulation material, outer stainless steel tube, glass tube with vacuum and sealing-plug; Fill composite phase change heat-accumulation material between inner layer stainless steel tube and the outer stainless steel tube, inner layer stainless steel tube, phase change heat storage material and outer stainless steel tube are formed the stainless steel tube heat exchanger, place in the glass tube with vacuum, are sealed by sealing-plug; Be parallel with many cold water on total cold water inlet tube and be in charge of, cold water is in charge of and is passed the bottom that sealing-plug extend into each inner layer stainless steel tube respectively; Many hot water of total hot water outlet pipe parallel connection are in charge of, and hot water is in charge of and is passed the top that sealing-plug extend into inner layer stainless steel tube respectively; Total hot water outlet pipe inserts shower nozzle and water service pipe then through the solar energy companion.Total cold water inlet tube communicates with running water pipe.
Further, said composite phase change heat-accumulation material is made the figuration composite phase-changing material of backing material for being core with fusing point at 50-60 ℃ paraffin with high density polyethylene (HDPE); Wherein, said paraffin mass ratio is 60%-80%, and the high density polyethylene (HDPE) mass ratio is 10%-30%, and the expanded graphite mass ratio is 5%-10%.
The present invention is compared to traditional solar water heater, and beneficial effect is following:
1, the composite phase change heat-accumulation material of the present invention's employing is the solid-solid phase-change heat-storing material; Compare and traditional solar water heater that water tank is arranged, saved the trouble of water tank, profile is more attractive in appearance; Easy for installation, can very convenient city high rise building wall built-up or balcony use;
What 2, the present invention adopted is composite phase change heat-accumulation material, compared to existing no water tank phase change thermal storage solar water heater, has heat conductivility preferably; Has good heat storage capacity; Therefore need not shift to an earlier date water storage, directly be connected all available at any time hot water with running water system; And water temperature stability, easy and simple to handle;
3, the fusing point of the composite phase change heat-accumulation material of the present invention's employing is below 60 ℃, and long-term the use can not produce incrustation scale yet, thereby to the not influence of solar water heater performance.
4, the composite phase change heat-accumulation material of the present invention's employing; Compare traditional solid-liquid phase change heat accumulating; Need not to consider the Volume Changes that phase transformation produces, also need not the problem of considering that the conventional solar boilers vacuum tube breaks, overflow even the vacuum heat-collecting tracheal rupture is also anhydrous; Operation does not have influence to complete machine, and security is good.
In addition, consider solar water heater, under low temperature condition, pipeline is easy to bursting by freezing, can increase the low temperature frost valve; Under high-temperature condition, can increase electromotive sunvisor.
Description of drawings
Figure is novel no water tank phase change thermal storage solar water heater structural representation;
Among the figure: hot water is in charge of 1, cold water is in charge of 2, inner layer stainless steel tube 3, composite phase change heat-accumulation material 4, outer stainless steel tube 5, glass tube with vacuum 6, vestlet 7, support 8, total cold water inlet tube 9, total hot water outlet pipe 10, polyurethane insulation coating 11, solar energy companion 12, tailstock 13, sealing-plug 14.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described further.
As shown in Figure 1, the present invention does not have water tank composite phase-change heat-storage solar water heater, comprising: vestlet 7, support 8, total cold water inlet tube 9, total hot water outlet pipe 10, polyurethane insulation coating 11, solar energy companion 12, tailstock 13 and some vacuum heat-collectings unit.Support 8 is fixedly connected with tailstock 13, and each vacuum heat-collecting unit all places on the tailstock 13, and fixing by support 8, and vestlet 7 is coated on outside the support 8, protection vacuum heat-collecting unit.Each vacuum heat-collecting unit includes inner layer stainless steel tube 3, composite phase change heat-accumulation material 4, outer stainless steel tube 5, glass tube with vacuum 6 and sealing-plug 14.Inner layer stainless steel tube 3 is formed the stainless steel tube heat exchanger with outer stainless steel tube 5, places in the glass tube with vacuum 6, by sealing-plug 14 sealings, fills composite phase change heat-accumulation material 4 between the inner layer stainless steel tube 3 of stainless steel tube heat exchanger and the outer stainless steel tube 5.Be parallel with many cold water on total cold water inlet tube 9 and be in charge of 2, cold water is in charge of 2 and is passed the bottom that sealing-plug 14 extend into each inner layer stainless steel tube 3 respectively.Many hot water of total hot water outlet pipe 10 parallel connections are in charge of 1, and hot water is in charge of 1 and is passed the top that sealing-plug 14 extend into inner layer stainless steel tube 3 respectively.Total hot water outlet pipe 10 inserts shower nozzle and water service pipe then through solar energy companion 12.Total cold water inlet tube 9 communicates with running water pipe.
Many glass tube with vacuums 6 are arranged on the support 8, and the gap between the adjacent vacuum tube is 4-5mm.The lower end of vacuum tube is stretched in the tailstock 13 that is fixed on the support, and the top end opening of each glass tube with vacuum 6 is with sealing-plug 14 sealings.Stainless heat exchanger places glass tube with vacuum 6 inner chambers, and its bottom is apart from the bottom 2-3cm of glass tube with vacuum 6, and composite phase change heat-accumulation material 4 is in the middle of two-layer stainless steel tube.Inner layer stainless steel tube 3 is leaked water.Hot water is in charge of 1 and is provided with polyurethane insulation coating 11 with total hot water outlet pipe 10 is outer, makes the water heater thermal losses little, and heat insulation effect is good.
Glass tube with vacuum 6 absorbs solar radiations, and with the heat transmission and be stored in the composite phase change heat-accumulation material 4, composite phase change heat-accumulation material 4 stores heat through the stainless steel tube heat exchanger.When cold water is in charge of 2 entering inner layer stainless steel tubes 3 by total cold water inlet tube 9 through cold water; The heat transferred cold water that composite phase change heat-accumulation material 4 will be accumulated through the stainless steel tube heat exchanger; Cold water is accepted heat and is become fresh hot water and be in charge of 1 by hot water and flow out; Final through total hot water outlet pipe 10, for people's daily life is used.
The optional micro computer of solar energy companion " free heat " with the vast flourish Industrial Co., Ltd. in Shanghai; TYBL-04,05 color model solar energy companion, plug and play hot water is as the supplemental heater of solar water heater; Remedy solar water heater and cause the under-supply shortcoming of the undesirable heat of water temperature because of the weather reason; The heating at the terminal, thus played subsequent use effect, but be not limited thereto Company products.
The present invention does not have storage tank, belongs to the quick-heating type solar water heater, and running water links to each other with cold water outlet; Open hot-water switch during water; Running water gets in the heat-storing material pipe in the thermal-collecting tube from cold water outlet, and heat-storing material temperature height is heat transferred water, thereby heats water.
Composite phase change heat-accumulation material that the present invention adopts is as heat-storing material, and selecting for use with fusing point is core at 50-60 ℃ paraffin, makes the figuration composite phase-changing material of backing material with high density polyethylene (HDPE).Wherein the paraffin mass ratio is at 60%-80%, and high density polyethylene (HDPE) is at 10%-30%, and expanded graphite is at 5%-10%; High density polyethylene (HDPE) and expanded graphite are stirred 30min down at 250-260 ℃, and it is complete to make it fusion, becomes then to stir to become to drip paraffin; Be warming up to 280 ℃ after dropwising, under this temperature, keep 10min, be cooled to 100-120 ℃ then; This moment, liquid paraffin was covered by in the high density polyethylene (HDPE), was cooled to room temperature then, finally formed fixed phase change paraffin.A spot of expanded graphite has then increased the thermal conductivity factor of material.
This composite phase change heat-accumulation material is compared traditional solid-liquid phase change heat accumulating, need not consider the Volume Changes that phase transformation produces, thereby solve the problem that traditional material breaks because of the issuable vacuum tube of Volume Changes; And the fusing point of the composite phase change heat-accumulation material of selecting for use can not cause the knot hard scale below 60 ℃, thereby causes the decline of thermal-collecting tube efficient, does not need periodic maintenance.
The fusing point of the composite phase change heat-accumulation material that the present invention adopts do not have incrusted problem, and heat conductivility is better at 50-60 ℃, and composite phase change heat-accumulation material of the present invention is a solid-solid phase-change simultaneously, does not have Volume Changes and the problem that produces.
In addition, apparatus of the present invention can increase the pipeline frost valve in colder area in the north, solve the bursting by freezing phenomenon that conventional solar boilers possibly cause pipeline at low temperatures.Principle is: in frost valve, be equipped with the thermosensitive temperature-sensing element; The variation of temperature is expanded temperature-sensitive element or is shunk the control valve inner spool and open or close; When temperature is lower than 2 ℃; Frost valve then is in opening, makes system's rapid fully emptying cooling water before bursting by freezing, to reach the problem that prevents the bursting by freezing pipeline.When temperature was higher than 2 ℃, frost valve then was in buttoned-up status, thereby system can resume work rapidly.Electromotive sunvisor has played the effect of protection solar water heater simultaneously, delays the aging of solar water heater; Apparatus of the present invention can be installed electromotive sunvisor when high temperature, can better play the effect of protection solar water heater.
Claims (2)
1. no water tank composite phase-change heat-storage solar water heater; It is characterized in that; It comprises: vestlet (7), support (8), total cold water inlet tube (9), total hot water outlet pipe (10), polyurethane insulation coating (11), solar energy companion (12), tailstock (13) and some vacuum heat-collectings unit etc., and wherein, said support (8) is fixedly connected with tailstock (13); Each vacuum heat-collecting unit all places on the tailstock (13); And fixing by support (8), vestlet (7) is coated on outside the support (8), protection vacuum heat-collecting unit; Each vacuum heat-collecting unit includes: inner layer stainless steel tube (3), composite phase change heat-accumulation material (4), outer stainless steel tube (5), glass tube with vacuum (6) and sealing-plug (14) etc.; Fill composite phase change heat-accumulation material (4) between inner layer stainless steel tube (3) and the outer stainless steel tube (5); Inner layer stainless steel tube (3), phase change heat storage material (4) and outer stainless steel tube (5) are formed the stainless steel tube heat exchanger; Place in the glass tube with vacuum (6), seal by sealing-plug (14); Be parallel with many cold water on total cold water inlet tube (9) and be in charge of (2), cold water is in charge of (2) and is passed the bottom that sealing-plug (14) extend into each inner layer stainless steel tube (3) respectively; Many hot water of total hot water outlet pipe (10) parallel connection are in charge of (1), and hot water is in charge of (1) and is passed the top that sealing-plug (14) extend into inner layer stainless steel tube (3) respectively.
2. according to the said no water tank composite phase-change heat-storage solar water heater of claim 1; It is characterized in that; Said composite phase change heat-accumulation material (4) can be made the figuration composite phase-changing material of backing material for being core with fusing point at 50-60 ℃ paraffin with high density polyethylene (HDPE); Wherein, said paraffin mass ratio is 60%-80%, and the high density polyethylene (HDPE) mass ratio is 10%-30%, and the expanded graphite mass ratio is 5%-10%.
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| CN2011102895648A CN102338484A (en) | 2011-09-28 | 2011-09-28 | Composite phase change heat storage solar water heater without water tank |
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| CN2011102895648A CN102338484A (en) | 2011-09-28 | 2011-09-28 | Composite phase change heat storage solar water heater without water tank |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563918A (en) * | 2012-02-20 | 2012-07-11 | 江苏启能新能源材料有限公司 | Phase-change and heat-storage solar water heater |
| CN102654308A (en) * | 2012-05-10 | 2012-09-05 | 江苏启能新能源材料有限公司 | Phase-change heat storage type electric water heater |
| CN102829555A (en) * | 2012-02-21 | 2012-12-19 | 江苏启能新能源材料有限公司 | Heat charging device for heat accumulation type water heater |
| CN103528120A (en) * | 2013-10-16 | 2014-01-22 | 柳州市恒一环保科技有限公司 | Floor heating hydroelectric heater |
| CN103697603A (en) * | 2013-12-13 | 2014-04-02 | 上海海事大学 | Solar high-efficiency dual temperature phase-change collector and phase-change material for collector |
| CN104034067A (en) * | 2014-04-28 | 2014-09-10 | 江苏恒星聚能能源科技有限公司 | Solar heat storage type vacuum heat pipe |
| CN104633970A (en) * | 2015-01-13 | 2015-05-20 | 淄博博旭再生能源科技有限公司 | Collector of solar water heater |
| CN104893672A (en) * | 2015-05-21 | 2015-09-09 | 沈阳建筑大学 | High-density polyethylene/paraffin composite phase-change material and preparation method thereof |
| NL2012949B1 (en) * | 2014-06-04 | 2016-06-22 | Global-E-Systems Europa B V | Heat collector. |
| CN106595081A (en) * | 2016-10-31 | 2017-04-26 | 浙江工业大学 | Wall embedded type solar phase-change energy storage hot-water system, manufacturing method thereof and construction method thereof |
| CN106916568A (en) * | 2015-12-24 | 2017-07-04 | 上海邦中高分子材料有限公司 | A kind of preparation of organic phase change energy storage material |
| CN107188259A (en) * | 2017-07-12 | 2017-09-22 | 东南大学 | Sea water desalinating unit |
| CN108195151A (en) * | 2018-01-09 | 2018-06-22 | 深圳职业技术学院 | Heat accumulating type solar energy dryer |
| CN108397914A (en) * | 2018-03-14 | 2018-08-14 | 浙江神德新能源有限公司 | A kind of stewing solarization type solar water heater |
| CN109282512A (en) * | 2018-10-10 | 2019-01-29 | 祁金凤 | A kind of bellows of the thermal-collecting tube suitable for solar water heater |
| CN109520149A (en) * | 2018-12-24 | 2019-03-26 | 兰州理工大学 | A kind of phase change energy-storage type solar water heater |
| US11421920B2 (en) | 2019-04-25 | 2022-08-23 | King Fahd University Of Petroleum And Minerals | Solar-powered adsorption chiller operable in the absence of sunlight |
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| CN1635044A (en) * | 2004-12-23 | 2005-07-06 | 北京工业大学 | Mineral wax composite shape-setting phase-change material and process for preparation |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563918A (en) * | 2012-02-20 | 2012-07-11 | 江苏启能新能源材料有限公司 | Phase-change and heat-storage solar water heater |
| CN102829555A (en) * | 2012-02-21 | 2012-12-19 | 江苏启能新能源材料有限公司 | Heat charging device for heat accumulation type water heater |
| CN102654308A (en) * | 2012-05-10 | 2012-09-05 | 江苏启能新能源材料有限公司 | Phase-change heat storage type electric water heater |
| CN103528120A (en) * | 2013-10-16 | 2014-01-22 | 柳州市恒一环保科技有限公司 | Floor heating hydroelectric heater |
| CN103528120B (en) * | 2013-10-16 | 2016-08-24 | 柳州市恒一环保科技有限公司 | Floor heating Water electric heater |
| CN103697603B (en) * | 2013-12-13 | 2015-06-03 | 上海海事大学 | Solar high-efficiency dual temperature phase-change collector and phase-change material for collector |
| CN103697603A (en) * | 2013-12-13 | 2014-04-02 | 上海海事大学 | Solar high-efficiency dual temperature phase-change collector and phase-change material for collector |
| CN104034067B (en) * | 2014-04-28 | 2016-06-29 | 江苏恒星聚能能源科技有限公司 | A kind of solar energy heat-storage type vacuum heat-pipe |
| CN104034067A (en) * | 2014-04-28 | 2014-09-10 | 江苏恒星聚能能源科技有限公司 | Solar heat storage type vacuum heat pipe |
| NL2012949B1 (en) * | 2014-06-04 | 2016-06-22 | Global-E-Systems Europa B V | Heat collector. |
| CN104633970A (en) * | 2015-01-13 | 2015-05-20 | 淄博博旭再生能源科技有限公司 | Collector of solar water heater |
| CN104633970B (en) * | 2015-01-13 | 2020-01-17 | 淄博博旭再生能源科技有限公司 | Heat collector of solar water heater |
| CN104893672A (en) * | 2015-05-21 | 2015-09-09 | 沈阳建筑大学 | High-density polyethylene/paraffin composite phase-change material and preparation method thereof |
| CN106916568A (en) * | 2015-12-24 | 2017-07-04 | 上海邦中高分子材料有限公司 | A kind of preparation of organic phase change energy storage material |
| CN106595081B (en) * | 2016-10-31 | 2019-04-09 | 浙江工业大学 | The embedded solar energy phase transition accumulation of energy hot-water heating system of wall, preparation and its construction method |
| CN106595081A (en) * | 2016-10-31 | 2017-04-26 | 浙江工业大学 | Wall embedded type solar phase-change energy storage hot-water system, manufacturing method thereof and construction method thereof |
| CN107188259A (en) * | 2017-07-12 | 2017-09-22 | 东南大学 | Sea water desalinating unit |
| CN108195151A (en) * | 2018-01-09 | 2018-06-22 | 深圳职业技术学院 | Heat accumulating type solar energy dryer |
| CN108195151B (en) * | 2018-01-09 | 2023-08-29 | 深圳职业技术学院 | Heat accumulating type solar dryer |
| CN108397914A (en) * | 2018-03-14 | 2018-08-14 | 浙江神德新能源有限公司 | A kind of stewing solarization type solar water heater |
| CN109282512A (en) * | 2018-10-10 | 2019-01-29 | 祁金凤 | A kind of bellows of the thermal-collecting tube suitable for solar water heater |
| CN109520149A (en) * | 2018-12-24 | 2019-03-26 | 兰州理工大学 | A kind of phase change energy-storage type solar water heater |
| US11421920B2 (en) | 2019-04-25 | 2022-08-23 | King Fahd University Of Petroleum And Minerals | Solar-powered adsorption chiller operable in the absence of sunlight |
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Application publication date: 20120201 |