CN101423944A - Corrosion inhibitor for vehicle circulation and cooling system and use method thereof - Google Patents
Corrosion inhibitor for vehicle circulation and cooling system and use method thereof Download PDFInfo
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- CN101423944A CN101423944A CNA2008102298611A CN200810229861A CN101423944A CN 101423944 A CN101423944 A CN 101423944A CN A2008102298611 A CNA2008102298611 A CN A2008102298611A CN 200810229861 A CN200810229861 A CN 200810229861A CN 101423944 A CN101423944 A CN 101423944A
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- cooling system
- water
- corrosion inhibitor
- inhibiter
- vehicle circulation
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Abstract
The invention discloses a corrosion inhibitor for a locomotive circulating cooling system and a method for using the same. The corrosion inhibitor consists of sodium nitrite (45.00 to 53.00 percent), borax decahydrate (40.00 to 48.00 percent), BTA(0.80 to 1.05 percent) and a zinc nitrate additive (5.00 to 20.00 percent). 50 grams of corrosion inhibitor are added to less than or equal to 10 kilograms of water, and another 50 grams of corrosion inhibitor are added in water of more than 10 kilograms and less than 20 kilograms. Before addition of the corrosion inhibitor, water in a locomotive circulating cooling system is completely discharged and the corrosion inhibitor is dissolved and then added into the locomotive circulating cooling system. In a corrosion test, both stainless steel and copper corrosion rates meet requirements and are less than 0.005mm/a. After operation for 15 to 20 days of 20 transport vehicles, water in systems is yellowish and clean. And even after six months of operation, the water is steel clear. During a test period, vehicles used for tests have no fault caused by high water temperature.
Description
Technical field
The invention belongs to the inhibiter field, relate to inorganic inhibitor and preparation method thereof.Also relate to nitrogenous organic compound inhibiter especially.
Background technology
Now more circulating cooling system needs water to do media, and what produce just has the corrosion of metal problem thereupon.The treatment agent of recirculating cooling water system mainly comprises inhibiter etc. at present.In patent 200610004693.7 " based on the inhibiter of polyamines ", mention the inhibiter of N-oxide compound, quaternary ammonium and/or trimethyl-glycine functional group, also pointed out to be applied to automobile cooling system.But because its lack of material, reason such as cost an arm and a leg can not be used widely it.Other has patent 200710099354.6 " silicon-tungsten corrosion inhibitor that is used for circulation cooling system of demineralized water ", a kind of silicon-tungsten corrosion inhibitor that is used for circulation cooling system of demineralized water is proposed in this patent, its chemical ingredients by silicate, tungstate, trolamine, copper inhibitor is compound constitutes, weight proportion is: silicate 70-90%, tungstate 2.5-27%, trolamine 2.5-18%, copper inhibitor 0.5-1.5%.For this inhibiter, though its corrosion mitigating effect has reached intended purposes, it is exclusively used in de-mineralized water, is not suitable for common tap water.
Summary of the invention
For overcoming the deficiency of above technology, the invention provides a kind of inferior sodium---borax class composite corrosion inhibitor, these formula material wide material sources, corrosion mitigating effect is good.Biggest advantage is that this inhibiter suppresses hardness and C1 by adding additive
-Detrimentally affect, can in tap water, have good corrosion inhibition equally, make this inhibiter provide condition in the popularization aspect the motor vehicle use.
The object of the present invention is to provide a kind of novel corrosion inhibitor that is used for vehicle circulation and cooling system, it is nontoxic, and not phosphorous hydrochlorate just has fabulous corrosion inhibition under low dosage.
The technical solution adopted in the present invention is: with Sodium Nitrite, borax decahydrate is main raw material, adds the configuration of a spot of BTA (being benzotriazole) and additive and forms.The present invention's one bag is 50g dosage, and raw materials used kind and quality per distribution ratio are as follows:
NaNO
2 45.00～53.00
Na
2B
4O
7·10H
2O 40.00～48.00
BTA 0.80～1.05
Additive zinc nitrate 5.00～10.00
The present invention is Powdered colorless solid, and is water-soluble, and pH value of aqueous solution is about 9.2.Every prescription is the consumption of 10Kg water coolant.
Using method of the present invention is:
1. the recirculated cooling water amount is less than or equal to 10 kilograms water tank, adds inhibiter one bag (50g) of the present invention; Greater than 10 kilograms water tank, whenever have more 10 kilograms of need and add a bag; Have more water shortage and need add a bag for 10 kilograms yet, concentration is high does not slightly have harm to circulating cooling system.
2. with the original water coolant emptying of circulating cooling system, if the inside deposition scale is more, tap water is filled it up with in suggestion, and starting engine circulation 10 minutes is clean with the water discharging again.
3. the present invention is poured in the circulating cooling system, if hardened into piece, with its crushing case of falling back, fill it up with tap water, starting engine is after 10 minutes, dissolving voluntarily.
In the use if when needing moisturizing because of the circulating cooling system seepage, need add the present invention simultaneously.Additional amount is pressed amount of water and is determined.
The using dosage that the present invention is used for vehicle circulation and cooling system (is example with the following capacity of 10Kg) is: the present invention's one bag (being 50g) is added in 10Kg fill in the circulating cooling system of water, starting engine is after 10 minutes, and this product i.e. dissolving voluntarily.In the case, each concentration of component proportioning of this product is as follows:
1, concentration is the NaNO of 1000～5500ppm
2,
2, concentration is the Na of 800～5000ppm
2B
4O
710H
2O
3, concentration is the BTA of 30～100ppm
4, concentration is the additive zinc nitrate of 100～1000ppm
If the circulating cooling system water yield is lower than 10Kg, also can add this product one bag, surpassing 10Kg〉the 20Kg water yield then need increase the inhibiter of a 50g.Concentration increases can reach the inhibition purpose, and effect is good, and simultaneously, high density does not have harm to circulating cooling system.
Embodiment
Embodiment one,
1. prepare three kinds of inhibiter and corrosion test.It is filled a prescription as following table 1:
With each component NaNO among the present invention
2Get 45.00g, Na
2B
4O
710H
2O respectively gets 35.00g, 40.00g, 45.00g, and BTA gets 0.80g, and additive zinc nitrate 5.00g is dissolved in the 10Kg tap water, fully stirs, and solid is all dissolved.At this moment, the aqueous solution is the water white transparency shape, and the pH value is about 9.2.
Table 1 recipe ingredient unit: ppm
| Formula number | NaNO 2 | Na 2B 4O 7·10H 2O | BTA | ZnNO 3 |
| II 1 | 4500 | 3500 | 80 | 500 |
| II 2 | 4500 | 4000 | 80 | 500 |
| II 3 | 4500 | 4500 | 80 | 500 |
2. erosion rate data logging and calculating, its result such as following table 2:
Table 2 test piece is in the erosion rate of each prescription
Embodiment two,
1. prepare three kinds of inhibiter and corrosion test, it is filled a prescription as following table 3:
With each component NaNO among the present invention
2Respectively get 20.00g, 30.00g, 40.00g, Na
2B
4O
710H
2O gets 10.00g, and BTA gets 0.30g, and additive zinc nitrate 2.00g is dissolved in the 10Kg tap water, fully stirs, and solid is all dissolved.At this moment, the aqueous solution is the water white transparency shape, and the pH value is about 9.2.
Table 3 recipe ingredient unit: ppm
2. erosion rate data logging and calculating, its result such as following table 4:
Table 4 test piece is in the erosion rate of each prescription
Embodiment three,
1. prepare three kinds of inhibiter and corrosion test, it is filled a prescription as following table 5:
With each component NaNO among the present invention
2Get 30.00g, Na
2B
4O
710H
2O gets 10.00g, and BTA respectively gets 0.40g, 0.60g, 0.80g, and additive zinc nitrate 10.00g is dissolved in the 10Kg tap water, fully stirs, and solid is all dissolved.At this moment, the aqueous solution is the water white transparency shape, and the pH value is about 9.2.
Table 5 recipe ingredient unit: ppm
| Formula number | NaNO 2 | Na 2B 4O 7·10H 2O | BTA | ZnNO 3 |
| IV 1 | 3000 | 1000 | 40 | 100 |
| IV 2 | 3000 | 1000 | 60 | 100 |
| IV 3 | 3000 | 1000 | 80 | 100 |
2. erosion rate data logging and calculating, its result such as following table 6:
Table 6 test piece is in the erosion rate of each prescription
| Formula number | The lacing film time | m 1(g) m 2(g) △m(mg) s(mm 2) K The degree of depth(mm/a) |
| IV 1 | 120h | 28.7978 28.7972 0.6 2628 0.002 |
| IV 2 | 120h | 28.8089 28.8086 0.3 2628 0.001 |
| IV 3 | 120h | 28.8168 28.8167 0.1 2628 0.00036 |
In the erosion rate of above-mentioned experimental data, stainless steel of mentioning among the GB50050-95 that all is up to state standards and the requirement of copper corrosion rate＜0.005mm/a.
Embodiment four,
In April, 2008 to October Dalian protect big transportation company limited of freight container and Dalian two tame transit-companys of Dragon Lord encased conveying company limited 20 transport trolleys on done road test.
The circulating cooling system of these transport trolleys all is the capacity of 40Kg.Add before the present invention, earlier vehicle circulation and cooling system water is drained, fill it up with tap water, starting engine circulation 10 minutes is after this water discharging totally.(every package branch is pressed NaNO to get 4 these inhibiter of bag
245.00g, Na
2B
4O
710H
2O 40.00g, BTA gets 0.80g, additive zinc nitrate 5.00g), join after the dissolving in the circulating cooling system, with system's topped up with water.Move after 15-20 days, the Zhong Shui of system is released, water still is as clear as crystal state, and light yellow is arranged.Yellow is because original rust is washed the color that is shown.Add the present invention and topped up with water again, turn round and release after 6 months, it is as clear as crystal without any impurity that water remains.Duration of test, test vehicle all do not occur because of the high fault that causes of water temperature.
Claims (4)
1. corrosion inhibitor for vehicle circulation and cooling system is characterized in that by following component and quality percentage composition:
NaNO
2 45.00～53.00
Na
2B
4O
7·10H
2O 40.00～48.00
BTA 0.80～1.05
Additive zinc nitrate 5.00～20.00.
2. the using method of corrosion inhibitor for vehicle circulation and cooling system according to claim 1 is characterized in that consumption is: add the inhibiter of a 50g in the water of every≤10Kg, surpass 10Kg〉the 20Kg water yield then need increase the inhibiter of a 50g; Before adding inhibiter vehicle circulation and cooling system institute water is drained, join in the vehicle circulation and cooling system after the inhibiter dissolving.
3. according to the using method of the described corrosion inhibitor for vehicle circulation and cooling system of claim 2, it is characterized in that directly being added in the vehicle circulation and cooling system inhibiter adds the water of needs in vehicle circulation and cooling system after, behind the starting engine 10 minutes, inhibiter i.e. dissolving voluntarily.
4. according to the using method of the described corrosion inhibitor for vehicle circulation and cooling system of claim 2, it is characterized in that institute adds before the inhibiter when vehicle circulation and cooling system water drained, the inside deposition scale is more, should fill it up with tap water, starting engine circulation 10 minutes adds inhibiter with the clean back of water discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102298611A CN101423944B (en) | 2008-12-16 | 2008-12-16 | Corrosion inhibitor for vehicle circulation and cooling system and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102298611A CN101423944B (en) | 2008-12-16 | 2008-12-16 | Corrosion inhibitor for vehicle circulation and cooling system and use method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101423944A true CN101423944A (en) | 2009-05-06 |
| CN101423944B CN101423944B (en) | 2010-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102298611A Expired - Fee Related CN101423944B (en) | 2008-12-16 | 2008-12-16 | Corrosion inhibitor for vehicle circulation and cooling system and use method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032307A (en) * | 2014-05-22 | 2014-09-10 | 国家电网公司 | Carbon steel corrosion inhibitor for circulating water treatment and application thereof |
| CN104313595A (en) * | 2014-09-26 | 2015-01-28 | 中国石油化工集团公司 | A composite anticorrosive agent for cooling water of MTU diesel engines and a preparing method thereof |
| CN109207981A (en) * | 2018-01-04 | 2019-01-15 | 福建浦汇科技发展有限公司 | A kind of rotor manufacture inorganic agent, method for manufacturing rotor and the rotor of non-heated shelling |
-
2008
- 2008-12-16 CN CN2008102298611A patent/CN101423944B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032307A (en) * | 2014-05-22 | 2014-09-10 | 国家电网公司 | Carbon steel corrosion inhibitor for circulating water treatment and application thereof |
| CN104313595A (en) * | 2014-09-26 | 2015-01-28 | 中国石油化工集团公司 | A composite anticorrosive agent for cooling water of MTU diesel engines and a preparing method thereof |
| CN104313595B (en) * | 2014-09-26 | 2017-11-28 | 中国石油化工集团公司 | A kind of MTU diesel coolants composite anti-corrosion erosion agent and preparation method thereof |
| CN109207981A (en) * | 2018-01-04 | 2019-01-15 | 福建浦汇科技发展有限公司 | A kind of rotor manufacture inorganic agent, method for manufacturing rotor and the rotor of non-heated shelling |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101423944B (en) | 2010-10-27 |
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| C14 | Grant of patent or utility model | ||
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| CB03 | Change of inventor or designer information |
Inventor after: Zou Enyi Inventor after: Wu Yanbo Inventor after: Lian Zhirong Inventor after: Zhang Jinhe Inventor before: Zou Enyi |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZOU ENYI TO: ZOU ENYI WU YANBO LIAN ZHIRONG ZHANG JINHE |
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Granted publication date: 20101027 Termination date: 20111216 |