CN101899287B - Solar energy collector tube heat conduction liquid - Google Patents
Solar energy collector tube heat conduction liquid Download PDFInfo
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- CN101899287B CN101899287B CN201010228479.6A CN201010228479A CN101899287B CN 101899287 B CN101899287 B CN 101899287B CN 201010228479 A CN201010228479 A CN 201010228479A CN 101899287 B CN101899287 B CN 101899287B
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Abstract
The present invention relates to a kind of solar energy collector tube heat conduction liquid; it is characterized in that it is by non-hydrate sodium metasilicate, silicate stabilizers, molybdate, borax alkyl carboxylic acids, azole compounds, Aliphatic monoacid, aliphatic dibasic acid, 1; 2 propylene glycol or 1; 3 propylene glycol are through mixing together product; this product has well can carry out macrocyclic protection to various non-ferrous metal under the high temperature conditions; its toxicity is little, even if the advantage and effect that also can not cause serious injury to human body are revealed in generation.
Description
Technical field
The present invention relates to a kind of collector tube heat conduction liquid, especially for solar energy system collector tube heat conduction medium solar energy collector tube heat conduction liquid.
Background technology
Today of, global warming serious threat Economic development nervous in global energy situation and people's life health, new energy substitution product is all being sought in countries in the world, obtains superiority in the hope of Sustainable development with in development in the future.Developing sun power is exactly the inexhaustible new forms of energy that the whole world is paid much attention to, and it is clean with it, continually, the significant advantage such as safety becomes focal point.Current China forms industrialization at heat collector, solar water heater.The thermal utilization switch technology of solar water heater is the most ripe beyond doubt.But the heat-conducting medium used in solar energy system, general all at use glycol/water mixtures automobile engine cooling liquid, under solar energy system is in strong sunlight for a long time, the high temperature that ethylene glycol occurs when system is not run be have very much corrosive, various metal may be there is such as: copper in solar energy system, brass, steel, cast iron, plumbous, tin, aluminium, the corrosion of magnesium etc. and alloy thereof, and automobile engine cooling liquid makes spent glycol as falling freezing point agent more, but ethylene glycol has suitable toxicity, when collection ripe pipe generation corrosion ethylene glycol enters in the hot water of heat-exchange system, human body is worked the mischief, therefore there is potential safety hazard.
Summary of the invention
Object of the present invention just in order to overcome the above-mentioned shortcoming that oneself has technology to exist with not enough and provide a kind of can in solar energy system life-time service in high temperature environments, and occur revealing the solar energy collector tube heat conduction liquid that also can not cause hazard to person, thus the generation of potential safety hazard can have been stopped, the corrosion of thermal-collecting tube can be prevented again, improve work-ing life.
The object of the invention is to be realized by following technical proposal:
Solar energy collector tube heat conduction liquid, it is by the raw material of following weight proportioning through mixing together,
Described water glass stablizer is 3-(trihydroxy methyl siloxanes)-propyl-phosplate phosphoric acid salt, 2-(sodium-sulfophenyl) ethylsiloxane, 3-(sodium sulfonate) propyl-siloxane, 3-(sodium sulfonate-2-hydroxy-propoxy) propyl-siloxane or (2,3-dihydroxyl propoxy-) propyl-siloxane;
Described molybdate is ammonium molybdate, Sodium orthomolybdate, potassium molybdate, lithium molybdate, phosphato-molybdic heteropolyacid salt, tungsten heteropolyacid salt or heteropolymolybdate;
Described alkyl carboxylic acids is cyclopentyl formic acid, NSC 60134, cyclopentanepropanoiacid acid, cyclopentyl butyric acid, hexahydrobenzoic acid, cyclohexyl acetic acid, cyclohexylpropionic acid or cyclohexyl butyric acid;
Described azole compounds is benzotriazole, first benzotriazole, MBT sodium, aphthotriazoles or 1-phenyl-5-mercapto tetrazole;
Described Aliphatic monoacid is caproic acid, 2 Ethylbutanoic acid, enanthic acid, sad, n-nonanoic acid, capric acid or lauric acid;
Described aliphatic dibasic acid is succinic acid, pentanedioic acid, hexanodioic acid, pimelic acid, sebacic acid, DC11, SL-AH, DC14 or dodecenyl succinic succinic acid.
The raw material that product of the present invention adopts is with 1,2 propylene glycol or 1,3 propylene glycol are base-material and multiple inhibiter composition, wherein: non-hydrate sodium metasilicate is inorganic salt inhibiter, to Al and Alalloy, there is fabulous corrosion inhibition, and also have good corrosion inhibition to other non-ferrous metals.
Aliphatic monoacid and aliphatic dibasic acid carboxylic acid inhibiter is composite synergy, effectively utilizes synergy can realize obtaining better protecting effect, cost ratio of enhancing product performance with less inhibiter consumption; Water glass stablizer can by being attracted to sodium silicate colloidal particle surface, the effective collision of sodium silicate colloidal particle is prevented by electrostatic interaction and sterically hindered effect, there is the water glass gelling polymers of irreversible non-solubility in containment, by sodium silicate colloidal Grain size controlling to be kept the solubility of sodium silicate colloidal particle at nano level, thus effectively the precipitation of water glass gel is contained; Alkyl carboxylic acids and Aliphatic monoacid and the composite corrosion that well can suppress scolding tin, aluminium parts on the hot metal surface of solar energy heat collection pipe for a long time of aliphatic dibasic acid; Azole compounds is for suppressing the high temperature corrosion of copper part in solar energy heat collection pipe, and especially aphthotriazoles, 1-phenyl-5-mercapto tetrazole have better oxidation-resistance property; Borax, molybdate has good shock-absorbing capacity; 1,2 propylene glycol or 1,3 propylene glycol have the corrosion inhibition of better scolding tin, aluminium parts, are namely to have the anti-antifreeze base fluid that boils, and be also inhibiter, and toxicity will be far smaller than ethylene glycol simultaneously.
Product of the present invention has carried out multiple corrosion experiment, comprises glass corrosion test, simulative corrosion test, cast copper corrosion test, cast aluminium corrosion test, the test of aluminium pump cavitation corrosion.Wherein the condition of glass corrosion test is carried out higher than SH/T0521 standard, and mark Huaihe River condition is: 88 DEG C, 336 hours, 33% concentrated solution concentration, and test conditions is: 98 DEG C, 20% concentration, 720 hours; The test conditions of simulative corrosion test carries out higher than SH/T0521 standard, and mark Huaihe River condition is: 88 DEG C, 1000 hours, 33% concentrated solution concentration; Test conditions is: 98 DEG C, 20% concentration, 3000 hours, increase the cast copper, the cast aluminium corrosion test that do not have in SH/T0521 standard simultaneously, cast copper corrosion test condition is 145 DEG C, 168 hours: cast aluminium corrosion test condition is: 145 DEG C, 168 hours, also carried out the test of aluminium pump cavitation corrosion, test-results is shown in Table 1.
Table 1 test-results
Test-results shows: the glass corrosion test-results of solar energy collector tube heat conduction liquid of the present invention reaches and higher than SH/T0521 standard, reaches 98 DEG C, 20% concentrated solution concentration, 720 hours; The reaching and higher than SH/T0521 standard, reach 98 DEG C, 20% concentrated solution concentration 3000 hours of simulative corrosion test result; Cast copper cast aluminium corrosion test test-results all reaches 145 DEG C, 168 hours; Test-results will far away higher than harshness in engine coolant and other solar energy heat conducting liquid; the test of aluminium pump cavitation corrosion also reaches 10 grades; therefore can illustrate that product of the present invention can carry out macrocyclic protection on hot metal surface to various non-ferrous metal; its toxicity is less than ethylene glycol; also can not cause serious injury to human body even if occur to reveal, prove its reliability and advance further.
Due to take technique scheme make the technology of the present invention compared with the prior art this product have and well can carry out macrocyclic protection to various non-ferrous metal under the high temperature conditions; its toxicity is little, even if the advantage and effect that also can not cause serious injury to human body are revealed in generation
Embodiment
Embodiment 1
Get non-hydrate sodium metasilicate 0.01kg, 3-(sodium sulfonate) propyl-siloxane 0.01kg, borax 5.0kg, ammonium molybdate 0.05kg, cyclopentyl formic acid 3.0kg, benzotriazole 0.01kg, 2 Ethylbutanoic acid 3.0kg, succinic acid or hexanodioic acid 0.10kg and 1,2 propylene glycol 90kg, through mixing together product, glass corrosion test-results reaches and higher than SH/T0521 standard.
Embodiment 2
Get non-hydrate sodium metasilicate 0.1kg, 2-(sodium-sulfophenyl) ethylsiloxane 0.2kg, borax 3.0kg, potassium molybdate or Sodium orthomolybdate 0.1kg, cyclopentanepropanoiacid acid 2.0kg, first benzotriazole 0.08kg, caproic acid 2.0kg, DC11 1.0kg and 1,3 propylene glycol 91kg, through mixing together product, glass corrosion test-results reaches and higher than SH/T0521 standard.
Embodiment 3
Get non-hydrate sodium metasilicate 0.3kg, 3-(trihydroxy methyl siloxanes)-propyl-phosplate phosphoric acid salt 0.4kg, borax 1.0kg, phosphato-molybdic heteropolyacid salt 0.2kg, NSC 60134 1.0kg, MBT sodium 0.1kg, lauric acid 1.0kg, dodecenyl succinic succinic acid 2.0kg and 1,2 propylene glycol 93kg, through mixing together product, glass corrosion test-results reaches and higher than SH/T0521 standard.
Embodiment 4
Get non-hydrate sodium metasilicate 0.5kg, (2,3-dihydroxyl propoxy-) propyl-siloxane 0.5kg, borax 0.1kg, heteropolymolybdate 0.5kg, cyclohexyl butyric acid 0.1kg, 1-phenyl-5-mercapto tetrazole 0.3kg, n-nonanoic acid 0.1kg, sebacic acid 3.0kg and 1,3 propylene glycol 95.0kg, through mixing together product, glass corrosion test-results reaches and higher than SH/T0521 standard.
Embodiment 5
Get non-hydrate sodium metasilicate 0.4kg, 3-(sodium sulfonate-2-hydroxy-propoxy) propyl-siloxane 0.3kg, borax 2.0kg, tungsten heteropolyacid salt 0.3kg, cyclohexylpropionic acid 1.5kg, aphthotriazoles 0.2kg, enanthic acid or sad 0.5kg, pentanedioic acid 1.5kg and 1,3 propylene glycol 92.0kg, through mixing together product, glass corrosion test-results reaches and higher than SH/T0521 standard.
Embodiment 6
Get non-hydrate sodium metasilicate 0.05kg, 3-(sodium sulfonate-2-hydroxy-propoxy) propyl-siloxane 0.1kg, borax 2.0kg, lithium molybdate 0.4kg, cyclopentyl butyric acid or hexahydrobenzoic acid 2.5kg, aphthotriazoles 1.5kg, capric acid 1.5kg, hexanodioic acid 0.5kg and 1,3 propylene glycol 93.0kg, through mixing together product, glass corrosion test-results reaches and higher than SH/T0521 standard.
Claims (1)
1. solar energy collector tube heat conduction liquid, is characterized in that it is by the raw material of following weight proportioning through mixing together,
Described silicate stabilizers is 3-(trihydroxy methyl siloxanes)-propyl-phosplate phosphoric acid salt, 2-(sodium-sulfophenyl) ethylsiloxane, 3-(sodium sulfonate) propyl-siloxane, 3-(sodium sulfonate-2-hydroxy-propoxy) propyl-siloxane or (2,3-dihydroxyl propoxy-) propyl-siloxane;
Described molybdate is ammonium molybdate, Sodium orthomolybdate, potassium molybdate, lithium molybdate, phosphato-molybdic heteropolyacid salt, tungsten heteropolyacid salt or heteropolymolybdate;
Described alkyl carboxylic acids is cyclopentyl formic acid, NSC 60134, cyclopentanepropanoiacid acid, cyclopentyl butyric acid, hexahydrobenzoic acid, cyclohexyl acetic acid, cyclohexylpropionic acid or cyclohexyl butyric acid;
Described azole compounds is benzotriazole, first benzotriazole, MBT sodium, aphthotriazoles or 1-phenyl-5-mercapto tetrazole;
Described Aliphatic monoacid is caproic acid, 2 Ethylbutanoic acid, enanthic acid, sad, n-nonanoic acid, capric acid or lauric acid;
Described aliphatic dibasic acid is succinic acid, pentanedioic acid, hexanodioic acid, pimelic acid, sebacic acid, DC11, SL-AH, DC14 or dodecenyl succinic succinic acid.
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| CN201010228479.6A CN101899287B (en) | 2010-07-16 | 2010-07-16 | Solar energy collector tube heat conduction liquid |
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| CN201010228479.6A CN101899287B (en) | 2010-07-16 | 2010-07-16 | Solar energy collector tube heat conduction liquid |
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| CN101899287A CN101899287A (en) | 2010-12-01 |
| CN101899287B true CN101899287B (en) | 2015-08-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104110668B (en) * | 2014-07-21 | 2016-08-17 | 程新明 | Nanometer physics and chemistry steam generator |
| CN106010470A (en) * | 2016-05-17 | 2016-10-12 | 张家港迪克汽车化学品有限公司 | Solar heat-conducting liquid |
| CN109666458A (en) * | 2017-10-17 | 2019-04-23 | 中国石油化工股份有限公司 | A kind of siliceous organic engine cooling liquid and its application |
| CN111100607B (en) * | 2018-10-26 | 2022-07-22 | 中国石油化工股份有限公司 | Solar heat-conducting liquid for providing gas-phase rust prevention protection and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1507486A (en) * | 2001-05-10 | 2004-06-23 | �����ɷ� | Antifreeze concentrate containing the colourant C.I. reactive violet 5 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1507486A (en) * | 2001-05-10 | 2004-06-23 | �����ɷ� | Antifreeze concentrate containing the colourant C.I. reactive violet 5 |
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