CN108342738A - A kind of nuclear power generating equipment aqueous cleaning agent and preparation method thereof - Google Patents
A kind of nuclear power generating equipment aqueous cleaning agent and preparation method thereof Download PDFInfo
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- CN108342738A CN108342738A CN201810046779.9A CN201810046779A CN108342738A CN 108342738 A CN108342738 A CN 108342738A CN 201810046779 A CN201810046779 A CN 201810046779A CN 108342738 A CN108342738 A CN 108342738A
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- nuclear power
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- generating equipment
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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
- C23G1/26—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions using inhibitors
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- Mechanical Engineering (AREA)
- Metallurgy (AREA)
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Abstract
The present invention provides a kind of nuclear power generating equipment aqueous cleaning agents, raw material includes inorganic salts cleaning additive, metal inhibitor, nonionic surfactant, anion surfactant, solubilizer, antifoaming agent and excess water, and the present invention also provides the preparation methods of above-mentioned aqueous cleaning agent.Nuclear power generating equipment aqueous cleaning agent provided by the invention, foam is relatively low, cleaning showers can be used, a variety of cleaning ways such as ultrasonic cleaning and pressure pulse cleaning use, use scope is wide, application method is versatile and flexible, for the grinding oil in nuclear power generating equipment process of manufacture, cutting fluid, metallic dust etc. has good cleaning performance, and subsequent surface treatment is not had an impact, and there is certain antirust function, concentration of narmful substance is well below limiting concentration standard, cleaning agent is readily biodegradable and handles discharge, compared to existing nuclear power generating equipment cleaning agent, aqueous cleaning agent preparation process provided by the present invention is simple, reduce preparation difficulty, reduce manpower demand.
Description
Technical field
The invention belongs to industry cleaning link technical fields, and in particular to a kind of nuclear power generating equipment aqueous cleaning agent and preparation side
Method.
Background technology
The decontamination of nuclear power generating equipment refers to being come using the method for machinery, chemistry or electrochemistry clear according to equipment and pollution condition
Except its radioactive substance in relation to the surfaces such as equipment and device, wherein the mainly oxide of iron, the followed by corruption of cobalt, chromium, nickel
Product is lost, when the decontamination of nuclear power generating equipment is an important measures and the nuclear power station great maintenance for safeguarding nuclear plant safety operation
Indispensable first step.Decontamination method can be divided into Mechanical Method and chemical method according to property, and as its name suggests, Mechanical Method is wrapped
Include flushing, scouring, polishing and sandblasting etc., it is desirable that have specific purpose tool, be only applicable to the office of surface relatively flat component and pipeline section
Portion's decontamination, inefficient, limitation is big.Chemical decontamination removes surface contaminant using chemicals appropriate and technique
Matter, efficient, applicability is wide, can be used for the decontamination of nuclear power station whole system.In addition, in the production process of nuclear power generating equipment,
Metallic surface treatment process is also related to, needs to clean up workpiece surface before entering surface treatment, in order to avoid workpiece
Structural strength and surface cleanliness cannot meet terminal requirement.
Chemical decontamination is for the purpose of reducing nuclear-energy plant total space radiological dose and the whole decontamination of progress, chemistry are gone
Dirty basic process can be divided into three steps：(1) cleaning agent is added in cooling water；(2) it recycles and dissolves radioactivity oxide；
(3) decontamination waste liquid is excluded from circuit.According to the difference of concrete technology, three processes can be partly or entirely carried out at the same time.It is assessing
When nuclear power plant decontamination procedure quality, it can be investigated in terms of decontamination factor, corrosion rate and wastewater flow rate three.Ideal cleaning
Agent should have the following conditions：(1) high dirt-removing power and rational decontamination speed；(2) small to the aggressivity of structural material；(3)
Waste liquid amount is few and disposable；(4) there is stability to heat and radioactivity irradiation；(5) using simplicity, dissolving metal object does not generate two
Secondary precipitation is easy to rinse well；(6) cheap.Decontamination speed not only influences total clean effect, but also due to reactor
Stoppage in transit expense is quite high, it is desirable that the completion as fast as possible of entire decontamination process.And safety dumping and the processing of radioactive liquid waste
It is an arduousness and expends high process.When selecting cleaning agent, it should be noted that selection metering is low and detersive efficiency is high, and waste liquid amount is small
And the reactant that residual quantity is low.It is tight due to requiring the corrosion control of reactor system, also it is considered as those not only in decontamination
It is small to parent metal aggressivity in decontamination process, and the aggressivity of medicament and its decomposition product is remained in operating conditions
Small cleaning agent.Currently, common cleaning agent is mainly organic acid, such as citric acid, mono-acid, amino carboxylic acid and its esters.Salt
Acid is widely used in cleaning power boiler, although effective to removal carbonate scale, single hydrochloric acid solution aoxidizes metal
The solution rate of object cannot meet the requirement of reactor decontamination, and even if addition corrosion inhibiter, still has higher invade to equipment
Corrosion, nuclear reactor circuit largely use austenitic steel equipment and pipeline, this, which is also determined, to be carried out using hydrochloric acid
Nuclear power plant decontamination.
CN102747380A discloses a kind of environment-friendly cleaning agent, by high-purity hydrocarbon solvent D60, high-purity hydrocarbon solvent D80,
Butyl glycol ether, isooctanol, n-octyl alcohol, glue dimethyl phthalate, dimethyl succinate and adipic acid dimethyl ester are prepared, the invention with
Existing acetone cleaning agent is compared, and has relative safety high, and cleaning ability is strong, non-corrosive without to nuclear power harmful element, no
The advantages of generating ODS substances, however the cleaning agent preparation process that the invention is provided is more complicated.CN103726042A is disclosed
A kind of 559 tons of acrylic acid reactor wall cleaning conversion epithelium anti-rust agent for treatment of used in nuclear power station, it is raw materials used to have phosphoric acid, oxidation
Zinc, citric acid, tartaric acid, nickel nitrate, potassium bichromate, ammonium molybdate, triethanolamine, ethylene glycol monobutyl ether, spray degreasing oil removing are special
With low foaming surfactant and water surplus, which compared with prior art, need to only use high-pressure acid-resistant to pump, inorganic agent is sprayed
To 1~4 hour, until 559 tons of propylene acid reactor inner cavities and 3200011 meters of long tube walls, waste liquid is neutralized,
It is discharged after cohesion, precipitation, then is into horizontal high voltage drying to inner cavity and 32000 tube walls using wind-driven multipurpose fire extinguisher 6MF-32
Can, antirust function can be realized in cleaning while, and without individually carrying out antirust treatment in next procedure, antirust time is long, can
Up to 30 days or more, although which realized cleaning and antirust treatment synchronously completes, and practical cleaning process is complicated for operation.
In conclusion in view of the high request of nuclear power generating equipment cleaning, it is still necessary to develop a kind of cleaning agent that cleaning ability is good, this is clear
Lotion rinses noresidue after should having good cleaning performance and cleaning to dirts such as abrasive pastes, cutting fluid and metal powders, together
When cleaning agent metal material is not corroded and have certain antirust function, foam is relatively low, and it is clear to be applicable in cleaning showers, ultrasonic wave
Wash should also be readily biodegradable and handle discharge with the cleaning ways such as pressure pulse cleaning, this cleaning agent.
Invention content
To solve problems of the prior art, an object of the present invention be to provide a kind of nuclear power generating equipment with it is water base clearly
Lotion.
The second object of the present invention is to provide the preparation method of above-mentioned aqueous cleaning agent.
To achieve the above object, the present invention uses following technical scheme：
A kind of nuclear power generating equipment aqueous cleaning agent, raw material include the component of following mass percent meter：
Inorganic salts cleaning additive 1~15%,
Metal inhibitor 3~15%,
Nonionic surfactant 10~35%,
Anion surfactant 10~35%,
Solubilizer 1~15%,
Antifoaming agent 0.1~5%,
Surplus is water.
Preferably, the inorganic salts cleaning additive is in anhydrous sodium metasilicate, sodium pyrophosphate, potassium tripolyphosphate and sodium carbonate
At least one.
It is further preferred that the purity of the inorganic salts cleaning additive is that analysis is pure.
Preferably, the metal inhibitor is at least one in phenylpropyl triazole, boric acid, triethanolamine and ternary acid amide
Kind.
Preferably, the nonionic surfactant is fatty alcohol polyoxyethylene ether.
Preferably, the anion surfactant is in carboxylate surfactant and phosphate-type surfactant
At least one.
It is further preferred that the carboxylate surfactant is AEC-9Na.
It is further preferred that the phosphate-type surfactant is MAEP.
Preferably, the solubilizer be in phosphoric acid polyethers fat sylvite Triton H66 and 35 ether of castor oil polyoxyethylene extremely
Few one kind.
Preferably, the antifoaming agent is at least one in dimethyl silicone polymer what polyoxypropylene ethylene oxide glycerin ether
Kind.
Preferably, the water is high purity water, 25 DEG C of resistivity of the high purity water >=18M Ω cm, the μ g/ of total organic carbon≤50
L, the μ g/L of sodium ion≤1, the μ g/L of chlorion≤1, the μ g/L of silicone content≤10.
A kind of preparation method of nuclear power generating equipment aqueous cleaning agent, specially：
Weigh each component according to the ratio, under normal temperature and pressure, first high purity water be added in reaction kettle, then successively stirring be added it is inorganic
Salt cleaning additive, metal inhibitor, nonionic surfactant, anion surfactant, solubilizer and antifoaming agent.
Preferably, addition group timesharing, need etc. additions a kind of component be completely dissolved after could add under a kind of component.
Preferably, before using reaction kettle, reaction kettle first is cleaned with high purity water, until the ejected wash water of discharge is qualified.
It is further preferred that the pH value that the standard of ejected wash water qualification is ejected wash water is 7, index of refraction 0.
Beneficial effects of the present invention
1, nuclear power generating equipment aqueous cleaning agent provided by the invention, foam is relatively low, and cleaning showers, ultrasonic cleaning can be used
It is used with a variety of cleaning ways such as pressure pulse cleaning, use scope is wide, and application method is versatile and flexible；
2, nuclear power generating equipment aqueous cleaning agent provided by the invention, for the grinding in nuclear power generating equipment process of manufacture
Oil, cutting fluid, metallic dust etc. have good cleaning performance, and subsequent surface treatment is not had an impact, and have
There is certain antirust function；
3, nuclear power generating equipment aqueous cleaning agent provided by the invention, concentration of narmful substance well below limiting concentration standard,
Cleaning agent is readily biodegradable and handles discharge；
4, existing nuclear power generating equipment cleaning agent is compared, aqueous cleaning agent preparation process provided by the present invention is simple, reduces
Difficulty is prepared, manpower demand is reduced.
Specific implementation mode
Following embodiment is intended to further illustrate the content of present invention, rather than limits the protection model of the claims in the present invention
It encloses.
Each raw material is commercially available customary commercial as not having specified otherwise in being formulated in following embodiment.
Embodiment 1
The formula of three kinds of nuclear power generating equipment aqueous cleaning agents is present embodiments provided, that is, is formulated A, formula B and formula C, this
Inorganic additive used in embodiment is directly bought in Xi Long chemical companies, and corrosion inhibiter is bought in Shanghai Milin chemical company,
Surfactant is bought in Nanjing Gutian company and Guangzhou Long Hui companies.
Specific formula is as follows：
Formula 1：
Inorganic salts cleaning additive：Anhydrous sodium metasilicate 1% (analysis is pure), sodium carbonate 2% (analysis is pure), potassium tripolyphosphate
2% (analysis is pure)
Metal inhibitor：Phenylpropyl triazole 0.5%, ternary acid amide 5%；
Nonionic surfactant：LF-221 10%, LF-403 5%；
Anion surfactant：AEC-9Na 15%；
Solubilizer：Brij 5%；
Antifoaming agent：Dimethyl silicone polymer 0.1%；
High purity water 54.4%.
Formula 2：
Inorganic salts cleaning additive：Sodium pyrophosphate 1% (analysis is pure), sodium carbonate 2% (analysis is pure)；
Metal inhibitor：Phenylpropyl triazole 0.5%, ternary acid amide 5%；
Nonionic surfactant：LF-221 15%, LF-403 3%；
Anion surfactant：MAEP 15%；
Solubilizer：Polysorbate 8%；
Antifoaming agent：Polyoxypropylene ethylene oxide glycerin ether 1%；
High purity water 49.5%.
Formula 3：
Inorganic salts cleaning additive：Anhydrous sodium metasilicate 1% (analysis is pure), potassium tripolyphosphate 2% (analysis is pure)；
Metal inhibitor：Phenylpropyl triazole 0.5%, boric acid 5%, triethanolamine 5.5%；
Nonionic surfactant：LF-221 10%, LF-403 10%；
Anion surfactant：AEC-9Na 5%, MAEP 5%；
Solubilizer：Brij 2%, polysorbate 3%；
Antifoaming agent：Dimethyl silicone polymer 0.1%；
High purity water 50.9%.
Comparative formula 1：
Inorganic salts cleaning additive：Anhydrous sodium metasilicate 1% (chemistry is pure), sodium carbonate 2% (chemistry is pure), potassium tripolyphosphate
2% (chemistry is pure)；
Metal inhibitor：Phenylpropyl triazole 0.5%, ternary acid amide 5%；
Nonionic surfactant：LF-221 10%, LF-403 5%；
Anion surfactant：AEC-9Na 15%；
Solubilizer：Brij 5%；
Antifoaming agent：Dimethyl silicone polymer 0.1%；
High purity water 54.4%.
Comparative formula 2 is certain commercially available water-base metal antirust agent.
Comparative formula 3 is another commercially available water base metal cleaning agent.
Embodiment 2
The preparation method of nuclear power generating equipment aqueous cleaning agent is present embodiments provided, specially：
(1) reaction kettle first is cleaned with high purity water, until the ejected wash water pH value of discharge is 7, index of refraction 0；
(2) it weighs each raw material according to the ratio, under normal temperature and pressure, first high purity water is added in reaction kettle, then stirring is added successively
Inorganic salts cleaning additive, metal inhibitor, nonionic surfactant, anion surfactant, solubilizer and antifoaming agent, add
Enter a group timesharing, a kind of component under could being added after a kind of component of additions such as needing to be completely dissolved.
Embodiment 3
Using the formula of preparation method and embodiment 1 that embodiment 2 provides, it is prepared for corresponding cleaning agent, performance such as table 1
It is shown.
The performance comparison table of 1 different formulations cleaning agent of table
The concentration of narmful substance limit value of cleaning agent is as shown in table 2.
2 cleaning agent concentration of narmful substance limit value of table
Comparison Tables 1 and 2 can be seen that the cleaning agent using formula provided by the present invention, and washing rate is significantly larger than pair
Than certain commercially available water-base metal antirust agent of formula 2.Although the commercially available water base metal cleaning agent washing rate of another kind of comparative formula 3
Also reached 91, however it is all corrosive to No. 45 steel, Z30 cast irons, H62 brass and LY12 duralumin, while its harmful substance
In fluorine, chlorine and phosphorus content be more than limit value.
Claims (10)
1. a kind of nuclear power generating equipment aqueous cleaning agent, which is characterized in that include the component of following mass percent meter：
Inorganic salts cleaning additive 1~15%,
Metal inhibitor 3~15%,
Nonionic surfactant 10~35%,
Anion surfactant 10~35%,
Solubilizer 1~15%,
Antifoaming agent 0.1~5%,
Surplus is water.
2. nuclear power generating equipment aqueous cleaning agent according to claim 1, which is characterized in that the inorganic salts cleaning additive is
At least one of anhydrous sodium metasilicate, sodium pyrophosphate, potassium tripolyphosphate and sodium carbonate.
3. nuclear power generating equipment aqueous cleaning agent according to claim 1, which is characterized in that the metal inhibitor is phenylpropyl alcohol
At least one of triazole, boric acid, triethanolamine and ternary acid amide.
4. nuclear power generating equipment aqueous cleaning agent according to claim 1, which is characterized in that the non-ionic surface active
Agent is fatty alcohol polyoxyethylene ether.
5. nuclear power generating equipment aqueous cleaning agent according to claim 1, which is characterized in that the anion surfactant
For at least one of carboxylate surfactant and phosphate-type surfactant.
6. nuclear power generating equipment aqueous cleaning agent according to claim 1, which is characterized in that the solubilizer is phosphoric acid polyethers
At least one of 35 ether of fat sylvite Triton H66 and castor oil polyoxyethylene.
7. nuclear power generating equipment aqueous cleaning agent according to claim 1, which is characterized in that the antifoaming agent is poly dimethyl
At least one of siloxanes and polyoxypropylene ethylene oxide glycerin ether.
8. nuclear power generating equipment aqueous cleaning agent according to claim 1, which is characterized in that the water is high purity water, described
25 DEG C of resistivity of high purity water >=18M Ω cm, the μ g/L of total organic carbon≤50, the μ g/L of sodium ion≤1, the μ g/L of chlorion≤1, silicon contain
Measure≤10 μ g/L.
9. according to the preparation method of any one of the claim 1~8 nuclear power generating equipment aqueous cleaning agent, which is characterized in that institute
Stating preparation method is：It weighs each component according to the ratio, under normal temperature and pressure, first adds water in reaction kettle, then nothing is added in stirring successively
Machine salt cleaning additive, metal inhibitor, nonionic surfactant, anion surfactant, solubilizer and antifoaming agent.
10. the preparation method of nuclear power generating equipment aqueous cleaning agent according to claim 9, which is characterized in that addition group timesharing,
A kind of component under a kind of component of the additions such as need could add after being completely dissolved.
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| CN109023398A (en) * | 2018-08-24 | 2018-12-18 | 深圳市天正隆科技有限公司 | A kind of cleaning agent and preparation method thereof and application method for ultrasonic wave spray |
| CN109023404A (en) * | 2018-08-27 | 2018-12-18 | 合肥绿洁环保科技有限公司 | A kind of antirust low foam metal cleaner |
| CN109136963A (en) * | 2018-09-07 | 2019-01-04 | 合肥绿洁环保科技有限公司 | A kind of fungi-proofing anti-corrosion cleaning agent of metal cleaning |
| CN109487283A (en) * | 2018-12-19 | 2019-03-19 | 长沙艾森设备维护技术有限公司 | Neutral anti-rust water-based cleaning agent and preparation method |
| CN114747575A (en) * | 2022-05-17 | 2022-07-15 | 山东新华莎罗雅生物技术有限公司 | Peracetic acid disinfectant and preparation method thereof |
| CN115851382A (en) * | 2021-09-23 | 2023-03-28 | 河北轩屹电力科技有限公司 | Hydrophobic insulating cleaning agent and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109023404A (en) * | 2018-08-27 | 2018-12-18 | 合肥绿洁环保科技有限公司 | A kind of antirust low foam metal cleaner |
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| CN109487283A (en) * | 2018-12-19 | 2019-03-19 | 长沙艾森设备维护技术有限公司 | Neutral anti-rust water-based cleaning agent and preparation method |
| CN115851382A (en) * | 2021-09-23 | 2023-03-28 | 河北轩屹电力科技有限公司 | Hydrophobic insulating cleaning agent and preparation method thereof |
| CN114747575A (en) * | 2022-05-17 | 2022-07-15 | 山东新华莎罗雅生物技术有限公司 | Peracetic acid disinfectant and preparation method thereof |
| CN114747575B (en) * | 2022-05-17 | 2024-03-26 | 山东新华莎罗雅生物技术有限公司 | Peracetic acid disinfectant and preparation method thereof |
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