CN101858658A - Heat-collecting tube applied to polymer-base solar heat collector - Google Patents
Heat-collecting tube applied to polymer-base solar heat collector Download PDFInfo
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- CN101858658A CN101858658A CN 201010118758 CN201010118758A CN101858658A CN 101858658 A CN101858658 A CN 101858658A CN 201010118758 CN201010118758 CN 201010118758 CN 201010118758 A CN201010118758 A CN 201010118758A CN 101858658 A CN101858658 A CN 101858658A
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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
Abstract
The invention provides a heat-collecting tube applied to a polymer-base solar heat collector. The heat-collecting tube is prepared by adding a heat absorbent, a heat-conducting agent and a compatibilizer into a polymeric matrix. The heat-collecting tube has the advantages of more obvious heat-collecting effect, longer service life and better heat-collecting efficiency and heat-preserving effect. The heat-collecting tube prepared from the polymeric matrix, the heat absorbent, the heat-conducting agent and the solubilizing agent guarantees better light resistance and aging resistance of the heat collector and better heat-collecting effect.
Description
Technical field
Patent of the present invention belongs to the solar energy utilization technique field, is specifically related to a kind of thermal-collecting tube of polymer-base solar heat collector.
Background technology
The energy and environment are the two principal themes that the world today pays close attention to.When non-renewable energy resources such as electric power, coal, oil signal for help repeatedly, when energy problem became the bottleneck of restriction international community economic development day by day, more and more countries came into effect " sunlight program ", and the exploitation solar energy resources is sought the new power of economic development.Solar energy is the energy the most basic on the earth, and the annual solar energy total amount that receives of the earth is 1 * 10
18KWh is equivalent to 5 * 10
14Bucket crude oil, be world's year consumption gross energy 10,000 surplus times.The solar energy utilization comprises the solar thermal utilization and the solar photovoltaic utilization of solar energy, wherein solar thermal utilization be field of renewable energy technology commercialization degree the highest, apply one of the most general technology.Formed various types of solar thermal collectors, be used for heating, refrigeration, ventilation, oven dry, smelting, bathing, irrigate, breed fish, many aspects such as generating.
Solar thermal collector mainly uses glass and metal material to prepare at present, is again the market leading products with the all-glass vacuum thermal-collecting tube in China.The thermos flask of its similar elongation of structure, coating for selective absorption is its key technology on the inner tube outer surface.What its floating coat adopted generally is the Al-N/Al solar selective absorbing coating of multilayer gradual change.This technology is that the Yin Zhiqiang of Tsing-Hua University professor and his colleagues invented (patent No. is 85100142.4) in 1984.Plated film is under vacuum condition, utilizes the principle of dc magnetron reactive sputtering plated film, makes to have the all-glass vacuum thermal-collecting tube that gradual change Al-N/Al selects sorbent surface.
Polymer pipe is because low price, handling ease, good corrosion resistance, advantage such as mechanical performance is good municipal administration and resident with a large amount of traditional metal, armored concrete tubing of replacement in the water supply and sewerage system.In recent years, the plastic conduit that is used for the delivering hot water also constantly occurs, such as, delivery and floor heating be with PP-R, PB, plastic conduit, and solar water heater is with PE-RT, PEX aqueduct, and their market scale is also in continuous expansion.But generally speaking, polymeric material is owing to its low thermal conductivity, and relatively poor hear resistance is the often fewer solar energy heating modulator material that is used in the past.Along with macromolecular material synthetic technology and high heat conduction, the continuous maturation of the technology of preparing of high temperature polymer composites, photo-thermal polymer composite, and various novel solar energy heatings select continuing to bring out of coating and paint-on technique, become possibility thereby make polymeric material prepare solar thermal collector.
Some technical research about the plastic cement solar energy heat collection pipe have been arranged at present both at home and abroad, but generally speaking, Heat-collecting effect not good for these plastic cement solar thermal collector ubiquities at present, the shortcoming of heat insulation effect difference, and for the research of solar energy heating pipe fitting aspect also limitation relatively.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, a kind of thermal-collecting tube that is applied to polymer-base solar heat collector is provided.
Above-mentioned purpose of the present invention is achieved by following scheme:
A kind of thermal-collecting tube that is applied to polymer-base solar heat collector, described thermal-collecting tube add heat absorbent, thermal conducting agent, solubilizer by polymeric matrix and are prepared from.
Described thermal-collecting tube adopts the preparation for processing of injection moulding, compression molding or extrusion molding.
Preferred version the most, described thermal-collecting tube adopts the preparation method of extrusion molding.
Described polymeric matrix adopts polyethylene, polypropylene, polycarbonate, EP rubbers, polyphenylene sulfide, nylon, PET or PBT.
Described thermal conducting agent adopts aluminium oxide, graphite, carborundum, carbon fiber, silica flour or magnesia.
Described solubilizer adopts PE grafted maleic anhydride, PP grafted maleic anhydride or POE grafted maleic anhydride, haloflex or SBS.
Described solubilizer can also adopt PE graft glycidyl methacrylate, PP graft glycidyl methacrylate or POE graft glycidyl methacrylate, haloflex or SBS.
Described heat absorbent adopts vulcanized lead, carbon black, cupric oxide or ferrimanganic copper composite oxides.
As preferred version, described polymeric matrix adopts heat-proof polythene, and described heat absorbent adopts carbon black and vulcanized lead, and described thermal conducting agent adopts the crystalline flake graphite material, and described solubilizer adopts the PE grafted maleic anhydride.
As another preferred version, described polymeric matrix adopts EP rubbers, and described heat absorbent adopts carbon black and vulcanized lead, and described thermal conducting agent adopts the crystalline flake graphite material, and described solubilizer adopts the PE grafted maleic anhydride.
The present invention is positioned at during use under the glass cover-plate as the main accessory of solar thermal collector, on the insulating reflector panel, can be fixed by the pipe clamp that is bonded between insulating reflector panel and the glass cover-plate.Material therefor adds heat absorbent, thermal conducting agent, solubilizer etc. by polymeric matrix and is prepared from, and forming method is selected mold pressing for use, extrudes or injection moulding, preferred extrusion molding.Used polymeric matrix is selected from least a among polyethylene, polypropylene, polycarbonate, EP rubbers, polyphenylene sulfide, nylon, PET, the PBT.Preferred PE-RT (heat-proof polythene) or EP rubbers.Used thermal conducting agent is selected from least a in aluminium oxide, graphite, carborundum, carbon fiber, silica flour, the magnesia.Preferred crystalline flake graphite material.Used heat absorbent is selected from vulcanized lead, at least a in carbon black, cupric oxide, the ferrimanganic copper composite oxides, preferred carbon black and vulcanized lead.Described solubilizer is selected from PE, PP, POE grafted maleic anhydride; PE, PP, POE graft glycidyl methacrylate; Haloflex, at least a among the SBS.Preferred PE grafted maleic anhydride.
Heat-collecting effect of the present invention is more obvious, and longer service life, and then makes solar thermal collector have better collecting efficiency and heat insulation effect.Optimized collecting tube guarantees that anti-light, the oxidative aging of heat collector is better, and Heat-collecting effect is better.
Description of drawings
Fig. 1 is an application structure schematic diagram of the present invention.
The specific embodiment
Structure when the present invention is applied to solar thermal collector is polymer-base solar heat collector as shown in Figure 1, is made up of three parts: polymer thermal-collecting tube 1, polymer glass cover plate 2, polymer heat preserving reflector 3.Wherein to select thickness for use be the Merlon glass of 1mm to polymer glass 2, and light transmittance reaches 85%.Adopt extruding-out process.Area size 800mm * 1200mm.
Polymer thermal-collecting tube 1 of the present invention is a critical piece, adopts fluoropolymer resin to add heat transfer agent, heat absorbent, bulking agent after extrusion molding.Fluoropolymer resin is selected the PE-RT special material for tube for use, and 100 parts, heat transfer agent is selected 10 parts of flaky graphites for use, and heat absorbent is selected 10 parts of carbon blacks for use, and bulking agent is selected 5 parts of PE grafted maleic anhydrides for use.Resin matrix, heat transfer agent, heat absorbent, bulking agent mix after the double screw extruder extruding pelletization becomes tubing through the extruder processing and preparing then through high-speed mixer.The bore of polymer thermal-collecting tube is Φ 47mm * 1200mm.One end utilization seals with material plug hot melt.Quantity is 10.
Polymer heat preserving reflector 3 adopts the three-decker design, wherein to adopt thickness be that thin aluminum sheet, the heat-insulation layer of 0.2mm selected the thick hard polyurethane foaming plastics of 1cm for use to reflector layer, structure sheaf is selected the thick high-density polyethylene layer of 2mm for use, and three-decker adopts and extrudes, rotation molding.And be hot pressed into fluted body.The reflective warming plate size of fluted body 800mm * 1200mm.
Above-mentioned polymer-base solar heat collector is carried out the solar energy heating experiment, its result is as follows: at fine day polymer-base solar heat collector is faced sunlight with relative ground 45 degree and place, the dress temperature is 23 ℃ of running water in the polymer pipeline, in the temperature instrumentation water temperature of 0～100 degree centigrade of thermal-collecting tube upper ends.During on-the-spot test, fine, 28 ℃ of the highest temperatures, 1～2 grade of wind scale began experiment in the morning 10.00, every 1 hour test water temperature result.
23 ℃ of water temperature result: 10:00am; 31 ℃ of 11:00am; 47 ℃ of 12:00am; 59 ℃ of 13:00am; 63 ℃ of 14:00am; 15:00; 63 ℃.
Claims (10)
1. thermal-collecting tube that is applied to polymer-base solar heat collector is characterized in that described thermal-collecting tube adds heat absorbent, thermal conducting agent, solubilizer by polymeric matrix and is prepared from.
2. thermal-collecting tube according to claim 1 is characterized in that described thermal-collecting tube adopts the preparation for processing of injection moulding, compression molding or extrusion molding.
3. thermal-collecting tube according to claim 1 and 2 is characterized in that described polymeric matrix adopts polythene PE, polypropylene PP, polycarbonate, EP rubbers, polyphenylene sulfide, nylon, polyethylene terephtalate or polybutylene terephthalate (PBT) PBT.
4. thermal-collecting tube according to claim 1 and 2 is characterized in that described thermal conducting agent adopts aluminium oxide, graphite, carborundum, carbon fiber, silica flour or magnesia.
5. thermal-collecting tube according to claim 1 and 2 is characterized in that described solubilizer adopts PE grafted maleic anhydride, PP grafted maleic anhydride or POE grafted maleic anhydride, haloflex or SBS SBS.
6. thermal-collecting tube according to claim 1 and 2 is characterized in that described solubilizer adopts PE graft glycidyl methacrylate, PP graft glycidyl methacrylate, POE graft glycidyl methacrylate, haloflex or SBS SBS.
7. thermal-collecting tube according to claim 1 and 2 is characterized in that described heat absorbent adopts vulcanized lead, carbon black, cupric oxide or ferrimanganic copper composite oxides.
8. thermal-collecting tube according to claim 1 and 2 is characterized in that described polymeric matrix adopts heat-proof polythene, and described heat absorbent adopts carbon black and vulcanized lead, and described thermal conducting agent adopts the crystalline flake graphite material, and described solubilizer adopts the PE grafted maleic anhydride.
9. thermal-collecting tube according to claim 1 and 2 is characterized in that described polymeric matrix adopts EP rubbers, and described heat absorbent adopts carbon black and vulcanized lead, and described thermal conducting agent adopts the crystalline flake graphite material, and described solubilizer adopts the PE grafted maleic anhydride.
10. thermal-collecting tube according to claim 1 is characterized in that described thermal-collecting tube adopts the preparation method of extrusion molding.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010118758 CN101858658A (en) | 2010-02-26 | 2010-02-26 | Heat-collecting tube applied to polymer-base solar heat collector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010118758 CN101858658A (en) | 2010-02-26 | 2010-02-26 | Heat-collecting tube applied to polymer-base solar heat collector |
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| CN101858658A true CN101858658A (en) | 2010-10-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020232773A1 (en) * | 2019-05-17 | 2020-11-26 | 江苏新成碳合新材料科技有限公司 | Polyphenylene sulfide composite material film having high vertical thermal conductivity and preparation method therefor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2460454A1 (en) * | 1979-06-28 | 1981-01-23 | Rhone Poulenc Ind | Tubular solar radiation collector wrapped in heat-conductive film - is made of silicone rubber or polyethylene, PVC nylon, polyester or polyurethane (BE 04.02.80) |
| US4312915A (en) * | 1978-01-30 | 1982-01-26 | Massachusetts Institute Of Technology | Cermet film selective black absorber |
| CN1468921A (en) * | 2002-07-18 | 2004-01-21 | 上海佳加室内装潢工程有限公司 | Radiation-absorbing waterproof heat-resisting antiwear paint |
| CN1524898A (en) * | 2003-09-16 | 2004-09-01 | 明达塑胶（厦门）有限公司 | Formula of plastic cement solar energy heat collection pipe material |
-
2010
- 2010-02-26 CN CN 201010118758 patent/CN101858658A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4312915A (en) * | 1978-01-30 | 1982-01-26 | Massachusetts Institute Of Technology | Cermet film selective black absorber |
| FR2460454A1 (en) * | 1979-06-28 | 1981-01-23 | Rhone Poulenc Ind | Tubular solar radiation collector wrapped in heat-conductive film - is made of silicone rubber or polyethylene, PVC nylon, polyester or polyurethane (BE 04.02.80) |
| CN1468921A (en) * | 2002-07-18 | 2004-01-21 | 上海佳加室内装潢工程有限公司 | Radiation-absorbing waterproof heat-resisting antiwear paint |
| CN1524898A (en) * | 2003-09-16 | 2004-09-01 | 明达塑胶（厦门）有限公司 | Formula of plastic cement solar energy heat collection pipe material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020232773A1 (en) * | 2019-05-17 | 2020-11-26 | 江苏新成碳合新材料科技有限公司 | Polyphenylene sulfide composite material film having high vertical thermal conductivity and preparation method therefor |
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Open date: 20101013 |