CN104059619A - Scale inhibition and removal agent of automobile engine cooling system - Google Patents
Scale inhibition and removal agent of automobile engine cooling system Download PDFInfo
- Publication number
- CN104059619A CN104059619A CN201410337563.XA CN201410337563A CN104059619A CN 104059619 A CN104059619 A CN 104059619A CN 201410337563 A CN201410337563 A CN 201410337563A CN 104059619 A CN104059619 A CN 104059619A
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- CN
- China
- Prior art keywords
- cooling system
- scale
- engine cooling
- sodium sulfonate
- descaling agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
- C02F5/10—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances
- C02F5/12—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents using organic substances containing nitrogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/22—Eliminating or preventing deposits, scale removal, scale prevention
Abstract
The invention aims to provide a scale inhibition and removal agent of an automobile engine cooling system. The scale inhibition and removal agent can be used for ensuring that an automobile is in operation under the optimum cooling effect all the time, so that the scale inhibition and removal agent can achieve the effects of saving energy, protecting environment, and prolonging the service life of the automobile. The scale inhibition and removal agent consists of petroleum sodium sulfonate (the content of inorganic salt in petroleum sodium sulfonate is less than or equal to 0.5%), imidazoline phosphate, a thinning agent, an emulsifying agent and thioacetamide. The scale inhibition and removal agent can be used for fully removing scale deposits deposited in the automobile engine cooling system and preventing the generation of the scale deposits, also can not cause damages to the cooling system while removing the scale deposits, and can be used for effectively prolonging the service life of an automobile engine really.
Description
Technical field
The invention belongs to the technical field of anti-scale descaling agent, be specifically related to a kind of anti-scale descaling agent of car engine cooling system.
Background technology
The cooling fluid of using in the cooling system of motor car engine, should be made or contain Scale inhibitors with distilled water in theory, thereby does not have incrustation scale generation.But in reality, overwhelming majority cooling fluid manufacturer is for cost-saving consideration, can directly adopt common tap water to make cooling fluid, substantially in cooling fluid, not add Scale inhibitors, or in the automobile situation that in use cooling fluid is inadequate, have people can directly inject tap water.Therefore automobile is after life-time service cooling fluid, in most engine-cooling systems, there will be incrustation scale, incrustation scale can affect the radiating effect of cooling system, the heat of piston cylinder can not distribute in time, working temperature is worked under higher state, the gap of piston cylinder will be bigger than normal than the gap of best effect, cause having more fuel just by excessive interstitial row, to run out not having clean-burning time, not only wasted energy, the tail gas of automobile has also polluted environment simultaneously, and too much vehicle exhaust also can cause the too much appearance of current haze weather.Automobile engine heat radiation effect decline simultaneously also can cause the envrionment temperature of engine operation to raise, and makes the aging acceleration of engine component, and service life of aeroengine shortens, and finally causes automobile to be scrapped in advance, to user, causes very large loss.
At present also have some to incrustation scale, to carry out clean method, for example, use far-infrared radiation incrustation scale, with acidity or basic solution, clean, far cost is very high, and general user's economic strength is difficult to burden; Although acidity or basic solution can be removed incrustation scale, there is stronger corrosive nature, can damage engine-cooling system, even from cooling system, ooze out and then damage engine, so pickling and alkali washing method are the remedial measuress of doing something against one's will.
Summary of the invention
The object of this invention is to provide a kind of anti-scale descaling agent of car engine cooling system, can either prevent from newly purchasing the generation of incrustation scale in car engine cooling system, also can remove the incrustation scale having produced in car engine cooling system.
In order to realize object of the present invention, contriver provides following technical scheme.
A kind of anti-scale descaling agent of car engine cooling system, its mass percent consists of petroleum sodium sulfonate 35-45%, tetrahydroglyoxaline phosphoric acid ester 35-45%, thinner 8.4-29.4%, emulsifying agent 0.5-1.5%, thioacetamide 0.08-0.12%, inorganic salt content≤0.5% in petroleum sodium sulfonate.
The anti-scale descaling agent of above-mentioned car engine cooling system, its mass percent consists of petroleum sodium sulfonate 40%, tetrahydroglyoxaline phosphoric acid ester 40%, thinner 18.9%, emulsifying agent 1%, thioacetamide 0.1%, inorganic salt content≤0.5% in petroleum sodium sulfonate.
The anti-scale descaling agent of above-mentioned car engine cooling system, the mixture of described thinner preferably water and methyl alcohol or the mixture of water and ethanol.
The anti-scale descaling agent of above-mentioned car engine cooling system, in described thinner 1.5 times of the weight particular methanol of water or ethanol weight.
The anti-scale descaling agent of above-mentioned car engine cooling system, the preferred monoethanolamine of described emulsifying agent, diethanolamine or trolamine.
The anti-scale descaling agent of above-mentioned car engine cooling system, its mass percent consists of petroleum sodium sulfonate 35-45%, tetrahydroglyoxaline phosphoric acid ester 35-45%, methyl alcohol 3.36-11.76%, water 5.04-17.64%, trolamine 0.5-1.5%, thioacetamide 0.08-0.12%, inorganic salt content≤0.5% in petroleum sodium sulfonate.
The anti-scale descaling agent of above-mentioned car engine cooling system, its mass percent consists of petroleum sodium sulfonate 40%, tetrahydroglyoxaline phosphoric acid ester 40%, methyl alcohol 7.56%, water 11.34%, trolamine 1%, thioacetamide 0.1%, inorganic salt content≤0.5% in petroleum sodium sulfonate.
Anti-scale descaling agent of the present invention, thioacetamide in its component contacts with incrustation scale, make the surface porosity of incrustation scale, petroleum sodium sulfonate, tetrahydroglyoxaline phosphoric acid ester are reacted with main composition-calcium carbonate, the magnesiumcarbonate of incrustation scale subsequently, generate calcium mahogany sulfonate, petrolic magnesium sulfonate and sodium carbonate, these products all can be dissolved in cooling fluid, and the incrustation scale of deposition is removed.
Contriver finds in the process of anti-scale descaling agent research and development, in petroleum sodium sulfonate, the content of inorganic salt can affect the descale effect of anti-scale descaling agent, after contriver constantly gropes test, final while determining in petroleum sodium sulfonate inorganic salt content≤0.5%, anti-scale descaling agent of the present invention just has the generation that can either prevent from newly purchasing incrustation scale in car engine cooling system, can remove again the characteristic of the incrustation scale having produced in car engine cooling system.
In described anti-scale descaling agent monoethanolamine, diethanolamine or trolamine add anti-scale descaling agent generation layering, the effective constituent skewness that can prevent preparation, affect the effect that it prevents that incrustation scale from producing and remove incrustation scale.
Thioacetamide select and consumption definite taken into full account the problems such as himself powerful dissolving power, production cost and packing operability, finally determined scheme of the present invention.
The selection of thinner kind and consumption definite combines and considered the physico-chemical property of other component in anti-scale descaling agent of the present invention, the composition of automobile engine cooling liquid and content, production cost, the many factors such as impact on HUMAN HEALTH and environment have passed through test and screening repeatedly.
It is neutral that anti-scale descaling agent of the present invention is, and accidentally trickles down after human body skin or clothing, corrosion phenomenon can not occur; Selected advantages of nontoxic raw materials or low toxicity, safe and reliable during use, can be to environment yet.
Anti-scale descaling agent of the present invention can stop the generation of incrustation scale in car engine cooling system, can remove the incrustation scale having produced again.
For the automobile of new purchase, in engine-cooling system, there is not sediment incrustation, to having added in the cooling system of cooling fluid, add anti-scale descaling agent 150-200 gram of the present invention.Anti-scale descaling agent can with cooling fluid in form incrustation scale main composition-calcium carbonate, magnesiumcarbonate occur should, generation can be dissolved in cooling fluid calcium mahogany sulfonate, petrolic magnesium sulfonate and sodium carbonate, therefore there will not be the phenomenon of incrusted deposit.
For the engine-cooling system that has sediment incrustation, first to having added in the cooling system of cooling fluid, add anti-scale descaling agent 150-200 gram of the present invention, the cooling fluid of draining after for some time, adds new cooling fluid, then adds anti-scale descaling agent 150-200 gram.Conventionally circulation can eliminate the incrustation scale having produced for 3-6 time.The number of times that the time that anti-scale descaling agent is kept somewhere in cooling fluid and required circulation are added, can adjust accordingly according to actual vehicle condition, finally the incrustation scale in cooling system can be removed clean.After use, the sound of engine obviously diminishes, and has occurred the automobile that oil firing is more, and the amount of fuel in the time of can returning to new car not only can play energy-conservation effect, and the pollution level of exhaust emissions can reduce, and has alleviated the pollution of vehicle exhaust to environment.
Anti-scale descaling agent of the present invention, when effectively removing the incrustation scale in car engine cooling system, can not cause secondary damage to cooling system, therefore can really realize the object that extends the motor car engine life-span.The low production cost of simultaneously described anti-scale descaling agent, the cost of every 150 grams is no more than 100 yuan, can guarantee newly to purchase automobile in two years in without dirty state, and ordinary consumer all can be born, and has thus actual using value.
Embodiment
Below in conjunction with specific embodiment, content of the present invention is further described in detail.
Embodiment 1
Take petroleum sodium sulfonate (inorganic salt content≤0.5%) 400g, tetrahydroglyoxaline phosphoric acid ester 400g, trolamine 10g, thioacetamide 1g, methyl alcohol 75.6g, water 113.4g, mixes, and stirs and obtains anti-scale descaling agent of the present invention.
Embodiment 2
Take petroleum sodium sulfonate (inorganic salt content≤0.5%) 350g, tetrahydroglyoxaline phosphoric acid ester 350g, trolamine 5g, thioacetamide 0.8g, methyl alcohol 117.6g, water 176.4g, mixes, and stirs and obtains anti-scale descaling agent of the present invention.
Embodiment 3
Take petroleum sodium sulfonate (inorganic salt content≤0.5%) 450g, tetrahydroglyoxaline phosphoric acid ester 450g, trolamine 15g, thioacetamide 1.2g, methyl alcohol 33.6g, water 50.4g, mixes, and stirs and obtains anti-scale descaling agent of the present invention.
Embodiment 4
Take petroleum sodium sulfonate (inorganic salt content≤0.5%) 400g, tetrahydroglyoxaline phosphoric acid ester 400g, trolamine 10g, thioacetamide 1g, ethanol 75.6g, water 113.4g, mixes, and stirs and obtains anti-scale descaling agent of the present invention.
Embodiment 5
Take petroleum sodium sulfonate (inorganic salt content≤0.5%) 4000g, tetrahydroglyoxaline phosphoric acid ester 4000g, diethanolamine 100g, thioacetamide 10g, methyl alcohol 756g, water 1134g, mixes, and stirs and obtains anti-scale descaling agent of the present invention.
Embodiment 6
Take petroleum sodium sulfonate (inorganic salt content≤0.5%) 4000g, tetrahydroglyoxaline phosphoric acid ester 4000g, monoethanolamine 100g, thioacetamide 10g, ethanol 756g, water 1134g, mixes, and stirs and obtains anti-scale descaling agent of the present invention.
Embodiment 7
Contriver detects the anti-scale descaling agent preparing according to method described in embodiment 1-6, detects index and standard thereof as shown in table 1, and concrete detected result is as shown in table 2.
Table 1
Project | Standard |
Outward appearance | The transparent oily body of brown color |
Working substance content | ≥65% |
Amount of diluent | ≤25% |
Density (g/cm 3) | 1.10-1.20 |
PH value | 7-9 |
Scale removal performance (1 hour) | Dirt piece solubilized during with 90 ℃ of 1% aqueous solution |
Antiseptic property (1 hour) | Corrosion-free with 90 ℃ of No. 45 steel of 1% aqueous solution |
In table 1, working substance content refers to petroleum sodium sulfonate and the total content of tetrahydroglyoxaline phosphoric acid ester.
Table 2
Embodiment 8
The automobile that the engine-cooling system of take has produced incrustation scale is example, carries out the explanation of using method.
Needing the car engine cooling system of cleaning and descaling preferably to divide cleans for three times.
Clean for the first time: in car engine cooling system, add 150g anti-scale descaling agent of the present invention, auto idle speed two hours or drive uninterruptedly to travel after 100 kilometers and drain the solution in cooling system, and then repetitive operation is once.Above-mentioned whole process is preferably in half a day and completes, not intermittent operation.Current cleaning process is mainly that the soft incrustation scale of easily washing off is washed off fast, and the cooling fluid after cleaning will be discharged immediately, in order to avoid there is deposited phenomenon, capillary water route is resulted in blockage.
Clean for the second time: complete after the first cleaning, in car engine cooling system, add new cooling fluid and 150g anti-scale descaling agent of the present invention, automobile can continue residual incrustation scale to clean in daily driving process, after the time of about 30 days, coolant drain is fallen, change once newer cooling fluid and anti-scale descaling agent of the present invention, normally travel six months, in automobile, incrustation scale will be removed completely, now coolant drain be fallen.The cleaning of this process is by the incrustation scale that is not easy in engine-cooling system to wash, by constantly dissolving at a slow speed for a long time, and the process of gradually incrustation scale slowly being removed.
Clean for the third time: complete after cleaning for the second time, in car engine cooling system, add new cooling fluid and 150g anti-scale descaling agent of the present invention, can guarantee that engine-cooling system can be always in the good heat radiating state without dirty in two years.After 2 years, carry out the replacing of cooling fluid and anti-scale descaling agent of the present invention.Current cleaning is the formation for incrustation scale after stoping, and belongs to the cleaning of maintenance property.
For the incrustation scale producing in incrustation scale in cooling system more situation, especially water tank, water tank has been caused to corrosion, need to change the scale removal of carrying out again cooling system after water tank and corresponding waterway pipe and clean, in order to avoid damage engine.
Claims (7)
1. the anti-scale descaling agent of a car engine cooling system, it is characterized in that, mass percent consists of petroleum sodium sulfonate 35-45%, tetrahydroglyoxaline phosphoric acid ester 35-45%, thinner 8.4-29.4%, emulsifying agent 0.5-1.5%, thioacetamide 0.08-0.12%, inorganic salt content≤0.5% in petroleum sodium sulfonate.
2. the anti-scale descaling agent of a kind of car engine cooling system according to claim 1, it is characterized in that, mass percent consists of petroleum sodium sulfonate 40%, tetrahydroglyoxaline phosphoric acid ester 40%, thinner 18.9%, emulsifying agent 1%, thioacetamide 0.1%, inorganic salt content≤0.5% in petroleum sodium sulfonate.
3. the anti-scale descaling agent of a kind of car engine cooling system according to claim 1, is characterized in that, described thinner is selected from the mixture of water and methyl alcohol or the mixture of water and ethanol.
4. the anti-scale descaling agent of a kind of car engine cooling system according to claim 3, is characterized in that, in described thinner, the weight of water is methyl alcohol or ethanol weight 1.5 times.
5. the anti-scale descaling agent of a kind of car engine cooling system according to claim 1, is characterized in that, described emulsifying agent is selected from monoethanolamine, diethanolamine or trolamine.
6. the anti-scale descaling agent of a kind of car engine cooling system according to claim 1, it is characterized in that, mass percent consists of petroleum sodium sulfonate 35-45%, tetrahydroglyoxaline phosphoric acid ester 35-45%, methyl alcohol 3.36-11.76%, water 5.04-17.64%, trolamine 0.5-1.5%, thioacetamide 0.08-0.12%, inorganic salt content≤0.5% in petroleum sodium sulfonate.
7. the anti-scale descaling agent of a kind of car engine cooling system according to claim 6, it is characterized in that, mass percent consists of petroleum sodium sulfonate 40%, tetrahydroglyoxaline phosphoric acid ester 40%, methyl alcohol 7.56%, water 11.34%, trolamine 1%, thioacetamide 0.1%, inorganic salt content≤0.5% in petroleum sodium sulfonate.
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CN201410337563.XA CN104059619B (en) | 2014-07-16 | 2014-07-16 | A kind of anti-scale descaling agent of car engine cooling system |
CN201610534837.3A CN106086912B (en) | 2014-07-16 | 2014-07-16 | The anti-scale descaling method of car engine cooling system |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110373282A (en) * | 2019-07-24 | 2019-10-25 | 常州机电职业技术学院 | A kind of toothed oak wood cleaning mixture and its method for preventing and eliminating scale |
CN110776115A (en) * | 2019-11-20 | 2020-02-11 | 辛集市北方化工有限公司 | Low-alkali scale inhibitor and preparation method thereof |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1435384A (en) * | 2002-01-30 | 2003-08-13 | 北京化工大学 | Corrosion-and scaling-inhibiting water treating agent |
CN1865171A (en) * | 2005-05-18 | 2006-11-22 | 北京化工大学 | Corrosion mitigation and antiscaling technology for copper and copper alloy apparatus used in cooling water system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2258506T3 (en) * | 2001-12-24 | 2006-09-01 | Cognis Ip Management Gmbh | CATION COMPOSITIONS FOR CLEANING HARD SURFACES. |
JP4836505B2 (en) * | 2005-07-04 | 2011-12-14 | 日新製鋼株式会社 | Austenitic stainless steel material for automobile refueling system and manufacturing method |
-
2014
- 2014-07-16 CN CN201610534837.3A patent/CN106086912B/en active Active
- 2014-07-16 CN CN201410337563.XA patent/CN104059619B/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1435384A (en) * | 2002-01-30 | 2003-08-13 | 北京化工大学 | Corrosion-and scaling-inhibiting water treating agent |
CN1865171A (en) * | 2005-05-18 | 2006-11-22 | 北京化工大学 | Corrosion mitigation and antiscaling technology for copper and copper alloy apparatus used in cooling water system |
Non-Patent Citations (8)
Title |
---|
卢敦华等: "防冻液的防腐蚀性能研究", 《腐蚀与防护》 * |
吴良彪: "多功能环保型防冻液的研究", 《甘肃科技》 * |
***,弓宁满: "不停机清洗技术及螯合清洗剂", 《清洗世界》 * |
李淑清: "内燃机车冷却液及其管理", 《内燃机车》 * |
王中华等: "《油田化学品实用手册》", 31 July 2004, 中国石化出版社 * |
耿建暖等: "螯合吸附分离功能纤维的研究进展", 《功能高分子学报》 * |
钱玲,王锦旭: "发动机水垢的预防及其清理", 《科学大众》 * |
颜朝霞: "关于车用防冻液的性能及如何正确使用的综合研究", 《今日科苑》 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110373282A (en) * | 2019-07-24 | 2019-10-25 | 常州机电职业技术学院 | A kind of toothed oak wood cleaning mixture and its method for preventing and eliminating scale |
CN110776115A (en) * | 2019-11-20 | 2020-02-11 | 辛集市北方化工有限公司 | Low-alkali scale inhibitor and preparation method thereof |
Also Published As
Publication number | Publication date |
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CN104059619B (en) | 2017-09-15 |
CN106086912A (en) | 2016-11-09 |
CN106086912B (en) | 2018-07-20 |
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