CN102757770A - Replacement-free non-aqueous nano coolant for central air-conditioning and industrial cycle heat exchange system - Google Patents
Replacement-free non-aqueous nano coolant for central air-conditioning and industrial cycle heat exchange system Download PDFInfo
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- CN102757770A CN102757770A CN201210276932XA CN201210276932A CN102757770A CN 102757770 A CN102757770 A CN 102757770A CN 201210276932X A CN201210276932X A CN 201210276932XA CN 201210276932 A CN201210276932 A CN 201210276932A CN 102757770 A CN102757770 A CN 102757770A
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Abstract
Disclosed is a replacement-free non-aqueous nano coolant for a central air-conditioning and an industrial cycle heat exchange system. The coolant is made of a non-acqueous nano fluid; the fluid is formed by hexamethylene yetramine, citric acid, ammonium citrate, dihydric alcohol and nanoparticles, has a high boiling point and a high thermal conductivity, and has no evaporation loss, corrosion, scaling formation or breeding problems of microorganisms and algae during repeated heat exchange processes; and the coolant can be used for a long time without replacement, operation management and maintenance of a system are simplified, and the comprehensive cost is reduced.
Description
Technical field
The present invention relates to a kind of free of replacement waterless nano quench liquid that can be used for central air-conditioning and industrial cycle heat-exchange system, belong to nano-fluid and chemical association technical field.
Technical background
The central air-conditioning handpiece Water Chilling Units contains two cover water systems, and a cover is the cooling water system that carries out heat exchange with atmosphere; Another set ofly be and indoor fan coil refrigerated water (heat medium water) system that carries out heat exchange.Industrial cooling circulating water system mainly comprises two big types, and one type is the cooling circulating water of plant condenser system; Another kind of be that steel mill, large-scale petrochemical factory, pharmaceutical factory and producer gas plant etc. contain with water is the cooling circulating water system of heat transferring medium.
Water is that there is following problem in heat transferring medium: 1) dehydration: the evaporation water loss that long-time running and spray process cause, quench liquid is the necessary high brackish water of discharge section after constantly concentrating, and constitutes dehydration-moisturizing-dehydration periodic cycle.2) water treatment: water exists the breeding of fouling, equipment corrosion, mikrobe and algae, problems such as the obstruction of pipeline as heat transferring medium.In addition, the water quality difference of various places also causes the technology of water treatment separately and the difference of method, has increased the difficulty and the cost of water treatment.
Some alcohol group nano fluid can remedy the above-mentioned defective of water base heat exchange agent, their high boiling point (＞150 ℃), low-freezing (＜-45 ℃) attribute as the heat exchange agent; Can satisfy the works better of interchanger under all temps condition, not have evaporation, boiling dehydration and solidifying; And corrosion; Fouling, and serial problems such as mikrobe and algae grows breeding, therefore this type of quench liquid needn't be changed again in theory.
Summary of the invention
The purpose of this invention is to provide a kind of free of replacement waterless nano quench liquid that can be used for central air-conditioning and industrial cycle heat-exchange system.
The characteristics of alcohol radical quench liquid of the present invention are:
The heat conductivity of divalent alcohol is not as good as water medium, in prescription, added heat is had highly conc nano solid particle for this reason.This nano-fluid thermal conduction intensity can be controlled through the concentration of regulating nanoparticle, has identical or higher heat-conductive characteristic thereby reach with water base quench liquid.
Added a small amount of inhibiter with the corrosion that prevents under the high temperature and the oxygen environment that exposes to the sun and the thermolysis that divalent alcohol possibly exist in the long term thermal exchange process and oxygenizement produce cooler metal.
The objective of the invention is to implement through following proposal:
The preparation method of waterless nano quench liquid of the present invention is: take by weighing exactly respectively by mass percentage: hexamethylenetetramine 0.50-1.00%; Hydrocerol A 0.20-0.50%; Ammonium citrate 0.20-0.50%; Then they are added in the divalent alcohol that mass percent is 93.00-98.10%, constantly stir fully until dissolving.To wherein adding the nanometer powder that mass percent is 1.00-5.00%, normal temperature stirs after 15 minutes fast down and is transferred in the ultrasonic dispersing appearance again, gets final product until being uniformly dispersed through ultrasonic powerful concussion 30 minutes.
Nanometer powder in the waterless nano cooling liquid formulation of the present invention is meant the aluminum oxide of particle diameter≤30 nanometers, red stone, zinc oxide, silicon-dioxide, inorganic oxide particles such as titanium oxide, and CNT, carbon particulates such as nano carbon microsphere.
Divalent alcohol in the waterless nano cooling liquid formulation of the present invention is meant terepthaloyl moietie and Ucar 35.
Embodiment 1:
Accurately take by weighing hexamethylenetetramine 5 grams respectively, Hydrocerol A 2 grams, ammonium citrate 2 grams add them in the reaction kettle that fills 976 gram Ucar 35 to then, constantly stir until dissolving fully.To wherein adding 15 gram nano aluminium oxide powder, after stirring 15 minutes fast, mixed solution is transferred in the ultrasonic dispersing appearance at normal temperatures, ultrasonic brute force is shaken 30 minutes until being separated into white liliquoid liquid again.
Embodiment 2:
Accurately take by weighing hexamethylenetetramine 8 grams respectively, Hydrocerol A 3 grams, ammonium citrate 3 grams add them in the reaction kettle that fills 968 gram terepthaloyl moietie to then, constantly stir until dissolving fully.Restrain the nano-silica powders end to wherein adding 18 again, after stirring 15 minutes fast, mixed solution is transferred in the ultrasonic dispersing appearance at normal temperatures, ultrasonic brute force is shaken 30 minutes until being separated into white liliquoid liquid.
Claims (4)
1. free of replacement waterless nano quench liquid that is applicable to central air-conditioning and industrial cycle heat-exchange system; Its composition characteristic is (by mass percentage): hexamethylenetetramine 0.50-1.00%; Hydrocerol A 0.20-0.50%; Ammonium citrate 0.20-0.50%, divalent alcohol 93.00-98.10%, nanometer powder 1.00-5.00%.
2. claims 1 central air-conditioning and industrial cycle heat-exchange system are meant two cover water systems of central air-conditioning handpiece Water Chilling Units; The cooling water system that promptly carries out heat exchange with atmosphere is unified and indoor fan coil refrigerated water (heat medium water) system that carries out heat exchange, and the cooling water recirculation system of plant condenser and steel mill, large-scale petrochemical factory, pharmaceutical factory and producer gas plant etc. to contain with water be the cooling circulating water system of heat transferring medium.
3. the nanometer powder in claims 1 composition characteristic is meant the aluminum oxide of particle diameter≤30 nanometers, red stone, and zinc oxide, silicon-dioxide, inorganic oxide particles such as titanium oxide, and comprised carbon particulates such as CNT, nano carbon microsphere.
4. the divalent alcohol in claims 1 composition characteristic is meant terepthaloyl moietie and Ucar 35.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210276932XA CN102757770A (en) | 2012-08-06 | 2012-08-06 | Replacement-free non-aqueous nano coolant for central air-conditioning and industrial cycle heat exchange system |
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| CN201210276932XA CN102757770A (en) | 2012-08-06 | 2012-08-06 | Replacement-free non-aqueous nano coolant for central air-conditioning and industrial cycle heat exchange system |
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| CN102757770A true CN102757770A (en) | 2012-10-31 |
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| CN201210276932XA Pending CN102757770A (en) | 2012-08-06 | 2012-08-06 | Replacement-free non-aqueous nano coolant for central air-conditioning and industrial cycle heat exchange system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651104A (en) * | 2016-01-04 | 2016-06-08 | 郑州轻工业学院 | Anti-frosting LNG air-heated nanofluid heat exchange pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105651104A (en) * | 2016-01-04 | 2016-06-08 | 郑州轻工业学院 | Anti-frosting LNG air-heated nanofluid heat exchange pipe |
| CN105651104B (en) * | 2016-01-04 | 2018-02-27 | 郑州轻工业学院 | A kind of LNG air temperature type nano-fluid heat exchanger tubes of antifrost |
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Address after: 430071 Hubei province Wuhan city Wuchang District Zhongshan Road Yuanchang million Garden 1 B 301 Applicant after: He Qiusheng Applicant after: Luo Yi Address before: 430062 sunshine road 2-3-1102, Youyi Road, Wuchang District, Hubei, Wuhan Applicant before: He Qiusheng Applicant before: Luo Yi |
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