CN101671549A - Non-aqueous system internal-combustion engine cooling liquid - Google Patents
Non-aqueous system internal-combustion engine cooling liquid Download PDFInfo
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- CN101671549A CN101671549A CN200810211509A CN200810211509A CN101671549A CN 101671549 A CN101671549 A CN 101671549A CN 200810211509 A CN200810211509 A CN 200810211509A CN 200810211509 A CN200810211509 A CN 200810211509A CN 101671549 A CN101671549 A CN 101671549A
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Abstract
The invention relates to the field of chemical engineering heat transfer, in particular to a non-aqueous system cooling medium used as internal-combustion engine cooling liquid. The invention particularly discloses non-aqueous system internal-combustion engine cooling liquid. The non-aqueous system internal-combustion engine cooling liquid contains propylene glycol, glycol, sodium benzoate, sodiummolybdate and benzotriazole, and is characterized in that the content of the propylene glycol is less than 40 percent. The freezing point of the non-aqueous system internal-combustion engine coolingliquid is below 49 to 13 DEG C below zero, so that the non-aqueous system internal-combustion engine cooling liquid can be widely used in gasoline engines and diesel engines. For the non-aqueous system internal-combustion engine cooling liquid, the corrosion resistance and the cavitation erosion resistance are far beyond those of the aqueous system cooling liquid, the boiling point is over 180DEGC, the normal-pressure operation is achieved, the combustion efficiency is improved, the oil consumption is lowered, and the emission of waste gas is reduced. The non-aqueous system internal-combustion engine cooling liquid does not contain heavy metals, amines, phosphides and chlorides, and meets the ROHS standard of the EU.
Description
Technical field:
The present invention relates to chemical field, particularly a kind of non-water system Chemicals that are used as cooling liquid of IC engine relate to a kind of non-aqueous system internal-combustion engine cooling liquid specifically.
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.Shortcoming is water-content more than 40%, and the boiling point that causes mixed solution surpasses 100 ℃ of i.e. vaporizations easily later on, and easily produces vapour lock at the high temperature position of engine mainly by the water decision, easily produces cavitation erosion at positions such as cylinder sleeve and water pumps.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.Particularly more strengthened the inside and outside differential pressure of cooling system, easily caused the accident of booster in the highlands.In addition, to cross cold also be the problem that traditional cooling fluid exists for the corrosion that brings of water and cylinder.
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 (W095/07323 English 1995) of 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 can not used under the environment below-40 ℃ so need not add water at-60 ℃ yet.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 two deficiencies and influences popularization.The one,, propylene glycol costs an arm and a leg, and the 2nd,, the used inhibiter of this product has used SODIUMNITRATE, under anhydrous state, can decomposition and inversion be Sodium Nitrite after being heated.The employed SODIUMNITRATE inhibiter of this nonaqueous system, can be present in the system with suspended state, and the SODIUMNITRATE of these suspended states when sticking to the outer wall of engine chamber under the effect of localized hyperthermia, might decomposite Sodium Nitrite fully, this is unfavorable to environmental protection.
Goal of the invention
At the employed propylene glycol resource of Ai Wenfei hydro-thermal conductive liquid seldom, cost an arm and a leg the problem of consumption height (optimum amount of its statement is up to 99%).The present invention can reach use properties similarly equally under the situation that reduces the propylene glycol consumption, and also can prepare the series product that can use under-8～-40 ℃ under the dosage condition of content below 40%.
The present invention replaces nitric acid to receive with other inhibiter, can reach the ideal preservative effect, and non-aqueous system internal-combustion engine cooling liquid of the present invention do not contain heavy metal, amine, phosphide and muriate, meets the ROHS of European Union standard.
Summary of the invention:
A kind of non-aqueous system internal-combustion engine cooling liquid of the present invention comprises propylene glycol, ethylene glycol, and Sodium Benzoate, Sodium orthomolybdate, benzotriazole is characterized in that content of propylene glycol is less than 40%.The basal liquid of gained can obtain-13 ℃ to-49 ℃ freezing point according to different ratios.And atmospheric boiling point all can reach more than 180 ℃.
As further improvement, a kind of non-aqueous system internal-combustion engine cooling liquid of the present invention, described propylene glycol can be propylene glycol 1,2.Select for use 1,2 of propylene glycol favourable to the apparent freezing point that reduces product.
In addition, a kind of non-aqueous system internal-combustion engine cooling liquid of the present invention, described propylene glycol can also be propylene glycol 1,3.Because of selecting for use propylene glycol 1,3 can obtain higher flash-point, this is to more favourable on the safety,
A kind of non-aqueous system internal-combustion engine cooling liquid of the present invention, described propylene glycol also can be the mixtures of propylene glycol 1,2 and propylene glycol 1,3.
As further improvement, a kind of non-aqueous system internal-combustion engine cooling liquid of the present invention, described phenylformic acid is received, and content is 0.05～0.3%.
A kind of non-aqueous system internal-combustion engine cooling liquid of the present invention, described phenylformic acid is received, and preferred content is 0.3%.
A kind of non-aqueous system internal-combustion engine cooling liquid of the present invention, described benzotriazole, content are 0.05～0.3%.
A kind of non-aqueous system internal-combustion engine cooling liquid of the present invention, described benzotriazole, preferred content are 0.3%.
A kind of non-aqueous system internal-combustion engine cooling liquid of the present invention, described Sodium orthomolybdate, content are 0.05～0.3%
A kind of non-aqueous system internal-combustion engine cooling liquid of the present invention, described Sodium orthomolybdate, preferred content are 0.3%.
The invention effect
Adopt a kind of non-aqueous system internal-combustion engine cooling liquid of the present invention, its apparent freezing point is below-49 ℃, but and has good pumping at-40 ℃.The atmospheric boiling point of a kind of non-aqueous system internal-combustion engine cooling liquid of the present invention is more than 180 ℃; 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/T0085-91 or the ASTM D1384-87 test.Also considerably beyond SH/T 0087-91 or ASTMD2809-89 " engine coolant, aluminium pump cavitation corrosion testing of characteristic " requirement to cavitation corrosion.
Embodiment
The present invention is further illustrated below in conjunction with embodiment.
Embodiment one
One of prescription of a kind of non-aqueous system internal-combustion engine cooling liquid of the present invention
Physicochemical data
Result of use
1. constant speed fixed line running test (4 mean number)
Result: fuel-efficient 8%
2. gaseous emission test (idling)
The result: discharge amount of exhaust gas obviously reduces
3. consumption run (idling)
Result: demonstrate oil consumption by pulsewidth and obviously reduce
4. life-time service situation
A, B two chassis travelled 1 year in years 8 months in July, 07 to 08, and A car accumulative total is travelled 20,000 kilometers, and B car accumulative total is travelled 40,000 kilometers.Experience the various driving conditions on summer high temperature, winter low temperature, Urban traffic and high speed road surface, obtained good result.Than water system cooling fluid following tangible advantage is arranged:
1, quick heating.Cold start has shortened half to normal water temperature than the water system cooling fluid time.
2, power obviously improves.Particularly evident when overtaking other vehicles acceleration.
3, the engine operation is more steady, and noise obviously reduces.
4, obviously fuel-efficient.
5, the water cooler bulk temperature descends, and air-conditioning is cooler.
Two of embodiment
Two of a kind of non-aqueous system internal-combustion engine cooling liquid prescription of the present invention
Physicochemical data
This product can use under the temperature more than-35 ℃, but the inhibiter stockage is low than scheme one, and other performance is similar to embodiment one.
Under the embodiment three
Three of a kind of non-aqueous system internal-combustion engine cooling liquid prescription of the present invention
Physicochemical data
To use under the temperature condition more than-8 ℃, other performance is similar to embodiment one only for present embodiment, and just more preceding two schemes of inhibiter stockage are lower.
Claims (10)
1, a kind of non-aqueous system internal-combustion engine cooling liquid comprises propylene glycol, ethylene glycol, and Sodium Benzoate, Sodium orthomolybdate, benzotriazole is characterized in that content of propylene glycol is less than 40%.
2, a kind of non-aqueous system internal-combustion engine cooling liquid according to claim 1, described propylene glycol can be propylene glycol 1,2.
3, a kind of non-aqueous system internal-combustion engine cooling liquid according to claim 1, described propylene glycol can be propylene glycol 1,3.
4, a kind of non-aqueous system internal-combustion engine cooling liquid according to claim 1, described propylene glycol also can be the mixtures of propylene glycol 1,2 and propylene glycol 1,3.
5, according to described any non-aqueous system internal-combustion engine cooling liquid of claim 1-4, described phenylformic acid is received, and content is 0.05～0.3%.
6, any non-aqueous system internal-combustion engine cooling liquid according to claim 5, described phenylformic acid is received, and preferred content is 0.3%.
7, according to described any non-aqueous system internal-combustion engine cooling liquid of claim 1-4, described benzotriazole, content are 0.05～0.3%.
8, any non-aqueous system internal-combustion engine cooling liquid according to claim 7, described benzotriazole, preferred content are 0.3%.
9, according to described any non-aqueous system internal-combustion engine cooling liquid of claim 1-4, described Sodium orthomolybdate, content are 0.05～0.3%.
10, any non-aqueous system internal-combustion engine cooling liquid according to claim 9, described Sodium orthomolybdate, preferred content are 0.3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN200810211509A CN101671549A (en) | 2008-09-10 | 2008-09-10 | Non-aqueous system internal-combustion engine cooling liquid |
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| CN200810211509A CN101671549A (en) | 2008-09-10 | 2008-09-10 | Non-aqueous system internal-combustion engine cooling liquid |
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| CN101671549A true CN101671549A (en) | 2010-03-17 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367379A (en) * | 2011-11-02 | 2012-03-07 | 深圳车仆汽车用品发展有限公司 | Life-cycle water-free cooling solution |
| 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 |
| CN103244252A (en) * | 2013-02-27 | 2013-08-14 | 山西滨科高新技术有限公司 | Heat-conductivity-coefficient-variable cooling liquid of automobile engine |
| CN103254964A (en) * | 2013-02-27 | 2013-08-21 | 山西滨科高新技术有限公司 | Automobile engine combustion supporting cooling liquid |
| CN104845594A (en) * | 2015-05-04 | 2015-08-19 | 宁波保税区韬鸿化工科技有限公司 | Full-life anhydrous cooling liquid |
| US20160326940A1 (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***公司 | The non-aqueous heat transfer fluid that low temperature viscosity reduces |
| CN110776878A (en) * | 2019-11-28 | 2020-02-11 | 济南鼎隆化工科技有限公司 | Environment-friendly high-boiling-point energy exchange medium and preparation method thereof |
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| US20030038276A1 (en) * | 2000-06-10 | 2003-02-27 | Evans John W. | Non-toxic ethylene glycol-based antifreeze/heat transfer fluid concentrate and antifreeze/heat transfer fluid |
| CN1533422A (en) * | 2001-07-19 | 2004-09-29 | ���ܿ���ϵͳ����˾ | Non-aqueous heat transfer fluid and use thereof |
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Patent Citations (2)
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| US20030038276A1 (en) * | 2000-06-10 | 2003-02-27 | Evans John W. | Non-toxic ethylene glycol-based antifreeze/heat transfer fluid concentrate and antifreeze/heat transfer fluid |
| CN1533422A (en) * | 2001-07-19 | 2004-09-29 | ���ܿ���ϵͳ����˾ | Non-aqueous heat transfer fluid and use thereof |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367379B (en) * | 2011-11-02 | 2014-04-30 | 深圳车仆汽车用品发展有限公司 | Life-cycle water-free cooling solution |
| CN102367379A (en) * | 2011-11-02 | 2012-03-07 | 深圳车仆汽车用品发展有限公司 | Life-cycle water-free cooling solution |
| 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 |
| CN103244252A (en) * | 2013-02-27 | 2013-08-14 | 山西滨科高新技术有限公司 | Heat-conductivity-coefficient-variable cooling liquid of automobile engine |
| CN103254964A (en) * | 2013-02-27 | 2013-08-21 | 山西滨科高新技术有限公司 | Automobile engine combustion supporting cooling liquid |
| CN106165190B (en) * | 2014-04-02 | 2020-07-03 | 埃文斯冷却***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***公司 | The non-aqueous heat transfer fluid that low temperature viscosity reduces |
| CN104845594A (en) * | 2015-05-04 | 2015-08-19 | 宁波保税区韬鸿化工科技有限公司 | Full-life anhydrous cooling liquid |
| US20160326940A1 (en) * | 2015-05-07 | 2016-11-10 | 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 |
| CN107709281A (en) * | 2015-05-07 | 2018-02-16 | 埃文斯冷却***公司 | The extremely low aqueous heat transfer fluid of low temperature viscosity with reduction |
| CN107709281B (en) * | 2015-05-07 | 2021-03-09 | 埃文斯冷却***公司 | Very low water heat transfer fluids with reduced low temperature viscosity |
| CN110776878A (en) * | 2019-11-28 | 2020-02-11 | 济南鼎隆化工科技有限公司 | Environment-friendly high-boiling-point energy exchange medium and preparation method thereof |
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Application publication date: 20100317 |