CN101402848A - Non-water system cooling medium - Google Patents
Non-water system cooling medium Download PDFInfo
- Publication number
- CN101402848A CN101402848A CNA2008102192161A CN200810219216A CN101402848A CN 101402848 A CN101402848 A CN 101402848A CN A2008102192161 A CNA2008102192161 A CN A2008102192161A CN 200810219216 A CN200810219216 A CN 200810219216A CN 101402848 A CN101402848 A CN 101402848A
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- inhibiter
- cooling medium
- water system
- system cooling
- freezing point
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Abstract
The invention discloses a non-water system cooling medium which is prepared by the materials with the following weight portions: 80 to 97 portions of glycol, 3 to 20 portions of freezing point modifying addition and 0.15 to 1.2 portions of inhibiter. The freezing point modifying addition is the polymer of glycol or the polylol of at least 3 carbons. The non-water system cooling medium has low cost; the normal pressure boiling point is more than 197 DEG C; the apparent freezing point is less than minus 49 DEG C; and the non-water system cooling medium can be broadly applied to the cooling systems of internal combustion engines or other devices in the temperature environment of over minus 40 DEG C. The cooling systems of various machines which are disturbed by the problems of rusting, corrosion, etching, boiling, and the like, can be better solved by the product.
Description
Technical field
The present invention relates to the refrigerant that a kind of cooling system is used, is a kind of non-water system cooling medium specifically, belongs to chemical technology field.
Background technology
The main body of traditional cooling liquid of IC engine is to form with the auxiliary agents such as mixture cooperation anticorrosive agent of ethylene glycol and water.Its shortcoming is water-content more than 40%, to the boiling point that makes mixed solution mainly by water decision, surpass 100 ℃ of i.e. vaporizations easily later on, and easily produce vapour lock and cavitation erosion at the high temperature position of engine.For improving boiling temperature, must be closed whole cooling system, system is worked under certain positive pressure, the voltage withstand class that this has increased system has undoubtedly increased equipment cost and potential safety hazard.Particularly more strengthened the inside and outside differential pressure of cooling system, easily caused the accident of quick-fried water pipe in the highlands.
From the corrosion angle, the existence of water is the root of galvanic corrosion, though can adopt the inhibiter technology, wants thoroughly to solve etching problem, remains a sizable difficult problem.
Cavitation erosion also is a great problem of water base cooling fluid, and because of cavitation erosion causes the damage of water pump, the damage of cylinder sleeve is common problem.Some large-scale diesel engine often makes whole cylinder sleeve fracture because of cavitation erosion.
It also is the problem that traditional cooling fluid is brought easily that cylinder is crossed cold.Cross the cold dew point corrosion that easily causes because of casing wall when engine has just started, also can cause the quenching effect, reduce the efficiency of combustion of fuel combustion vapour.So rising to 80 ℃ to water temperature after starting is the imperfect working condition of oil engine before, short more during this period of time good more.The main body of tradition cooling fluid is a water, and the thermal capacity of water is maximum, so the heating-up time is longer, may need near 10 minutes during this period of time general automobile.
For solving the deficiency of above water system cooling fluid, non-water coolant appears closely during the last ten years.Typical products is i.e. " love temperature " the non-hydro-thermal conductive liquid (WO95/07323 English 1995) of U.S. EVANS.
This product uses the propylene glycol more than 40%, and normally the propylene glycol with 84.5～99.85% content is that main body cooperates inhibiter to form.Not moisture or only contain the water impurity of bringing because of raw material is impure below 2%.
Because the freezing point of isomer 1,2 propylene glycol of propylene glycol is at-60 ℃, and the freezing point of 1,3 propylene glycol is at-27 ℃, also can not access freezing point at-40 ℃ product so need not add water.And boiling point is operated under normal pressure and is not also worried " boiling " problem more up to 188 ℃.Because the not moisture etching problem that also solved well reaches 400,000 miles its work-ing life, almost accomplish to change all the life.
But this product also has weak point and influences popularization.The one,, propylene glycol costs an arm and a leg.The 2nd,, the used inhibiter of this product has used SODIUMNITRATE, and SODIUMNITRATE can resolve into nitrite natrium when high temperature, and this is unfavorable to environmental protection.The 3rd,, this product viscosity is higher, and is poorer than the flowability (conveying) of traditional cooling fluid.
Summary of the invention
The purpose of this invention is to provide a kind of excellent performance and the lower non-water system cooling medium of cost.
A kind of non-water system cooling medium provided by the invention, it is made by the raw material of following parts by weight:
80～97 parts of ethylene glycol
3～20 parts of freezing point improving agents
0.15～1.2 part of inhibiter.
Described freezing point improving agent is the polymer of ethylene glycol, preferably glycol ether or triglycol.
But described freezing point improving agent is the polyvalent alcohol of at least three carbon also, preferably glycerol or propylene glycol.
In the present invention, adopt above-mentioned freezing point improving agent, its add-on can be reduced to the freezing point of ethylene glycol below-40 ℃ below 25%, adds then to be unfavorable for flowability because of the viscosity that has improved mixed solution.
And press above-mentioned its apparent freezing point of proportioning below-49 ℃, boiling point is above 197 ℃.
Described inhibiter was made up of iron and steel inhibiter, plumber's solder inhibiter and copper class inhibiter in 1: 1: 1 by weight ratio.
Described iron and steel inhibiter is selected from conventional steel iron inhibitors such as benzoate, nitrate, water-soluble phosphate, is used to strengthen the inhibition protection to iron and steel, is preferably Sodium Benzoate.
Described plumber's solder inhibiter can be to add the inhibiter of molybdate as plumber's solder, is preferably Sodium orthomolybdate.
Described copper class inhibiter can be to add the inhibiter of azole as copper and copper alloy, is preferably benzotriazole.
Production method of the present invention: at normal temperatures and pressures, ethylene glycol, freezing point improving agent and inhibiter are mixed, be stirred to till the dissolving fully.
After non-water coolant of the present invention adds the slow agent of erosion of above-mentioned mixed type, aluminium and aluminium alloy also there are good rust inhibition, etching problem can occur.
The present invention has disclosed and has not only hanged down 1 of apparent freezing point, 2 propylene glycol can be as the non-water base water tank cooling fluid of using under the low temperature, and ethylene glycol also can be under no aqueous condition forms the water tank cooling fluid of low apparent freezing point with other alcohols or relevant alcohols polymer, and price is more cheap.
Adopt method of the present invention can obtain apparent freezing point below-49 ℃, but and at-40 ℃ of nonaqueous cooling mediums with good pumping.Its atmospheric boiling point is more than 195 ℃; PH:7.2; Copper, cast iron, brass, red copper, aluminium, plumber's solder all had the antiseptic property more far better than water base cooling fluid, desired antiseptic property in SH/T 0085-91 or the ASTMD1384-87 test.
Considerably beyond SH/T 0087-91 or ASTM D2809-89 " motivation cooling fluid, aluminium pump cavitation corrosion testing of characteristic " requirement to cavitation corrosion.
Its atmospheric boiling point of the present invention surpasses 197 ℃, and apparent freezing point is lower than-49 ℃, can be used for the cooling system of oil engine or its equipment of base at the wide model of the temperature environment more than-40 ℃.Particularly cooling system is got rusty, problems such as burn into cavitation erosion, boiling are stranded the various mechanical cooling system of scratching, and all available product of the present invention is well solved.
Embodiment
Embodiment one:
At normal temperatures and pressures, ethylene glycol 85Kg, glycol ether 15Kg and inhibiter 0.9Kg are mixed, be stirred to till the dissolving fully promptly, wherein the weight proportion of the Sodium Benzoate in the inhibiter, Sodium orthomolybdate and benzotriazole is 1: 1: 1.All raw materials are technical grade, and purity is greater than 98%.
Physicochemical data:
| Project | The present invention | Like warm NPG + |
| Boiling point ℃ | ＞195 | 191 |
| Freezing point ℃ | ＜-49 | ＜-40 |
| V 40℃Viscosity CST | 8.6 | 12.1 |
| PH | 7.2 | 7.2 |
Embodiment two:
At normal temperatures and pressures, ethanol 97Kg, glycol ether 3Kg and inhibiter 1.2Kg are mixed, be stirred to till the dissolving fully promptly, wherein the weight proportion of the Sodium Benzoate in the inhibiter, Sodium orthomolybdate and benzotriazole is 1: 1: 1.All raw materials are technical grade, and purity is greater than 98%.
Physicochemical data is similar to embodiment one, but apparent freezing point is higher than embodiment one, and Applicable temperature is low not as embodiment one.
Embodiment three:
At normal temperatures and pressures, ethylene glycol 80Kg, glycol ether 20Kg and inhibiter 0.15Kg are mixed, be stirred to till the dissolving fully promptly, wherein the weight proportion of the Sodium Benzoate in the inhibiter, Sodium orthomolybdate and benzotriazole is 1: 1: 1.All raw materials are technical grade, and purity is greater than 98%.。
Physicochemical data is similar to embodiment one, but viscosity is a little more than embodiment one.
Embodiment four:
At normal temperatures and pressures, ethylene glycol 85Kg, glycerol 15Kg and inhibiter 0.9Kg are mixed, be stirred to till the dissolving fully promptly, wherein the weight proportion of the Sodium Benzoate in the inhibiter, Sodium orthomolybdate and benzotriazole is 1: 1: 1.All raw materials are technical grade, and purity is greater than 98%.
Physicochemical data:
| Project | The present invention | Like warm NPG + |
| Boiling point ℃ | ＞195 | 191 |
| Freezing point ℃ | ＜-49 | ＜-40 |
| V 40℃Viscosity CST | 12.8 | 12.1 |
| PH | 7.2 | 7.2 |
Embodiment five:
At normal temperatures and pressures, ethylene glycol 97Kg, glycerol 3Kg and inhibiter 1.2Kg are mixed, be stirred to till the dissolving fully promptly, wherein the weight proportion of the Sodium Benzoate in the inhibiter, Sodium orthomolybdate and benzotriazole is 1: 1: 1.All raw materials are technical grade, and purity is greater than 98%.
Physicochemical data is similar to embodiment four, but apparent freezing point is higher than embodiment four, and Applicable temperature is low not as embodiment four.
Embodiment six:
At normal temperatures and pressures, ethylene glycol 80Kg, glycerol 20Kg and inhibiter 0.15Kg are mixed, be stirred to till the dissolving fully promptly, wherein the weight proportion of the Sodium Benzoate in the inhibiter, sodium aluminate and benzotriazole is 1: 1: 1.All raw materials are technical grade, and purity is greater than 98%.
Physicochemical data is similar to embodiment four, but viscosity is a little more than embodiment four.
Below all can reach ideal boiling point and corresponding freezing point result, and inhibiter can be dissolved in wherein, reach excellent corrosion mitigating effect.
Because the viscosity of embodiment one is low, freezing point is also low, is to select preferably.
Embodiment one prescription uses case:
| Vehicle | Actual service life | Travel speed | Before the replacing | After the replacing |
| Blue Bird | 400,000 kilometers | 500 kilometers long-distance oil consumption | 8.5 rise/hundred kilometers | 7.7 rise/hundred kilometers |
| Guangzhou Honda | 130,000 kilometers | 64 kilometers fuel consumption per hundred kilometers of at the uniform velocity travelling | 7.24 rise/hundred kilometers | 6.67 rise/hundred kilometers |
In addition embodiment one prescription arranges 13 cars to use, and vehicle comprises Guangzhou Honda Odyssey, rhizoma sparganic Glan enlightening, Mazda 323, Toyota's Camry, Toyota Crown, modern Avante XD, Jetta or the like, and vehicle condition 30,000 to 700,000 does not wait from travelling.
All be the water base cooling fluid of employing ethylene glycol before changing, change after the non-water coolant of embodiment one prescription, feel that generally engine is from starting to normally the heating-up time of water temperature shortens greatly; It is cooler that air-conditioning becomes; The case lid of fetching boiling water after high speed traveling stops does not have the steam ejection at once yet; Exhaust more becomes peace and quiet (stink reduction); Feel that generally engine operation is lower, more smooth-going than water base cooling fluid noise, power strengthens to some extent.
Claims (9)
1, a kind of non-water system cooling medium is characterized in that it is made by the raw material of following parts by weight:
80～97 parts of ethylene glycol
3～20 parts of freezing point improving agents
0.15～1.2 part of inhibiter.
2, a kind of non-water system cooling medium according to claim 1 is characterized in that described freezing point improving agent is the polymer of ethylene glycol.
3, a kind of non-water system cooling medium according to claim 2, the polymer that it is characterized in that ethylene glycol is glycol ether or triglycol.
4, a kind of non-water system cooling medium according to claim 1 is characterized in that described freezing point improving agent is the polyvalent alcohol of at least three carbon.
5, a kind of non-water system cooling medium according to claim 4 is characterized in that polyvalent alcohol is glycerol or propylene glycol.
6, a kind of non-water system cooling medium according to claim 1 is characterized in that described inhibiter was made up of iron and steel inhibiter, plumber's solder inhibiter and copper class inhibiter in 1: 1: 1 by weight ratio.
7, a kind of non-water system cooling medium according to claim 6 is characterized in that described iron and steel inhibiter is a Sodium Benzoate.
8, a kind of non-water system cooling medium according to claim 6 is characterized in that described plumber's solder inhibiter is a Sodium orthomolybdate.
9, a kind of non-water system cooling medium according to claim 6 is characterized in that described copper class inhibiter is a benzotriazole.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102192161A CN101402848A (en) | 2008-11-14 | 2008-11-14 | Non-water system cooling medium |
| CN2009101416920A CN101565607B (en) | 2008-11-14 | 2009-05-19 | Non-water system cooling medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102192161A CN101402848A (en) | 2008-11-14 | 2008-11-14 | Non-water system cooling medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101402848A true CN101402848A (en) | 2009-04-08 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102192161A Pending CN101402848A (en) | 2008-11-14 | 2008-11-14 | Non-water system cooling medium |
| CN2009101416920A Expired - Fee Related CN101565607B (en) | 2008-11-14 | 2009-05-19 | Non-water system cooling medium |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101416920A Expired - Fee Related CN101565607B (en) | 2008-11-14 | 2009-05-19 | Non-water system cooling medium |
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| CN (2) | CN101402848A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101565607B (en) * | 2008-11-14 | 2012-03-07 | 郝克强 | Non-water system cooling medium |
| CN102559152A (en) * | 2012-01-10 | 2012-07-11 | 广州市标榜汽车用品实业有限公司 | All-organic waterless engine coolant |
| CN105441037A (en) * | 2015-11-27 | 2016-03-30 | 蚌埠海明压铸机有限公司 | Efficient engine coolant |
| CN105820801A (en) * | 2016-05-19 | 2016-08-03 | 山东普希环保科技有限公司 | Environment-friendly and economical propylene glycol freezing prevention and boiling prevention fluid |
| WO2016179485A1 (en) | 2015-05-07 | 2016-11-10 | Evans Cooling Systems, Inc. | Very low water heat transfer fluid with reduced low temperature viscosity |
| CN106165190A (en) * | 2014-04-02 | 2016-11-23 | 埃文斯冷却系统公司 | The non-aqueous heat transfer fluid that low temperature viscosity reduces |
| CN106479453A (en) * | 2016-08-30 | 2017-03-08 | 宝捷润滑油镇江有限公司 | A kind of automobile engine cooling liquid and preparation method thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104513648B (en) * | 2015-01-15 | 2017-09-22 | 宁海德宝立新材料有限公司 | A kind of phase change cold-storage composite based on butanediol |
| CN110776878B (en) * | 2019-11-28 | 2021-02-12 | 济南鼎隆化工科技有限公司 | Environment-friendly high-boiling-point energy exchange medium and preparation method thereof |
| CN111100609A (en) * | 2019-12-17 | 2020-05-05 | 重庆国翰能源发展有限公司 | High-power charging pile cooling liquid for heat dissipation |
| CN112147183B (en) * | 2020-10-16 | 2022-10-14 | 一汽解放汽车有限公司 | System and method for testing cooling performance of engine coolant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101402848A (en) * | 2008-11-14 | 2009-04-08 | 郝克强 | Non-water system cooling medium |
-
2008
- 2008-11-14 CN CNA2008102192161A patent/CN101402848A/en active Pending
-
2009
- 2009-05-19 CN CN2009101416920A patent/CN101565607B/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101565607B (en) * | 2008-11-14 | 2012-03-07 | 郝克强 | Non-water system cooling medium |
| CN102559152A (en) * | 2012-01-10 | 2012-07-11 | 广州市标榜汽车用品实业有限公司 | All-organic waterless engine coolant |
| CN106165190B (en) * | 2014-04-02 | 2020-07-03 | 埃文斯冷却系统公司 | Non-aqueous heat transfer fluids with reduced low temperature viscosity |
| CN106165190A (en) * | 2014-04-02 | 2016-11-23 | 埃文斯冷却系统公司 | The non-aqueous heat transfer fluid that low temperature viscosity reduces |
| WO2016179485A1 (en) | 2015-05-07 | 2016-11-10 | Evans Cooling Systems, Inc. | Very low water heat transfer fluid with reduced low temperature viscosity |
| CN107709281B (en) * | 2015-05-07 | 2021-03-09 | 埃文斯冷却系统公司 | Very low water heat transfer fluids with reduced low temperature viscosity |
| CN107709281A (en) * | 2015-05-07 | 2018-02-16 | 埃文斯冷却系统公司 | The extremely low aqueous heat transfer fluid of low temperature viscosity with reduction |
| JP2018523042A (en) * | 2015-05-07 | 2018-08-16 | エバンス クーリング システムズ インコーポレイテッド | Heat transfer fluid with low low temperature viscosity and very low moisture |
| EP3292098A4 (en) * | 2015-05-07 | 2018-12-26 | Evans Cooling Systems, Inc. | Very low water heat transfer fluid with reduced low temperature viscosity |
| US10280828B2 (en) | 2015-05-07 | 2019-05-07 | Evans Cooling Systems, Inc. | Very low water heat transfer fluid with reduced low temperature viscosity |
| CN105441037A (en) * | 2015-11-27 | 2016-03-30 | 蚌埠海明压铸机有限公司 | Efficient engine coolant |
| CN105820801A (en) * | 2016-05-19 | 2016-08-03 | 山东普希环保科技有限公司 | Environment-friendly and economical propylene glycol freezing prevention and boiling prevention fluid |
| CN106479453A (en) * | 2016-08-30 | 2017-03-08 | 宝捷润滑油镇江有限公司 | A kind of automobile engine cooling liquid and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101565607A (en) | 2009-10-28 |
| CN101565607B (en) | 2012-03-07 |
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